JP6216657B2 - Rotating shaft component mounting structure and rotating shaft component mounting method - Google Patents

Description

  The present invention relates to a component mounting structure and a component mounting method for a rotary shaft in which a plurality of components including gears (gears) are mounted on a rotary shaft such as a transmission, and more specifically, a plurality of components in their axial directions ( The present invention relates to a component mounting structure and a component mounting method in which one of the thrust direction is positioned by a positioning member and the other is locked by a locking member.

  As an automatic transmission mounted on a vehicle, a stepped automatic transmission having a plurality of rotating shafts arranged in parallel to each other and a plurality of gears and clutches (friction engagement devices) installed on these rotating shafts There is. In such an automatic transmission, for example, as described in Non-Patent Document 1, when assembling a plurality of parts such as a gear and a clutch (friction engagement device) on a rotating shaft, the plurality of parts in the axial direction are assembled. A cotter (positioning member) for positioning and a snap ring (locking member) for locking (fixing) in the axial direction are attached.

  That is, in the prior art described in Non-Patent Document 1, a second-speed gears (second-speed gear and its peripheral components), idle gear, cotter, collar member with a collar for preventing cotter disengagement (distance) on the secondary shaft. Color), first gear (first gear and surrounding components), first speed clutch (LOW clutch), collar member (31 mm color), and snap ring were assembled in this order.

  However, in the above assembly sequence, the snap ring is assembled last, so it is not a collar member (31 mm collar) assembled before the snap ring, but a ball bearing that is a part adjacent to the snap ring on the opposite side of the collar member. Only the snap ring detachment prevention part could be provided.

  Therefore, in order to prevent the snap ring from coming off, the inner ring of the ball bearing has been processed with a special shape. That is, a groove (hole) for arranging the snap ring on the inner side (inner diameter side) is formed on the side surface (end surface) facing the snap ring side of the inner ring of the ball bearing. This groove portion has an inner diameter dimension slightly larger than the outer diameter of the snap ring, and is set to a depth dimension (length dimension in the axial direction) that does not interfere with the snap ring even if the entire secondary shaft moves in the axial direction. .

Life Service Manual CD-ROM, Honda Motor Co., Ltd. Technical Development Department Maintenance Technology Development Block, 2012.06

  However, in the above conventional structure, since the inner ring of the ball bearing has a complicated shape, the ball bearing needs to be processed separately, which takes time and effort. Further, when assembling the ball bearing to the counter shaft, it is necessary to align the front and rear assembly directions (directions) in the axial direction. Therefore, the assembly process of the transmission has increased. In addition, since the snap ring is disposed inside the groove formed in the ball bearing, the position of the snap ring is limited, so that it is necessary to eliminate the gap between the snap ring and other components. For this reason, a collar member (31 mm collar) adjacent to the snap ring on the side opposite to the ball bearing is separately required. As a result, the number of parts of the transmission has increased. Therefore, there is room for reducing the manufacturing cost and weight of the transmission.

  The present invention has been made in view of the above points, and the object thereof is to eliminate the need for processing a special shape of a component to be attached to the rotating shaft, and to simplify the mounting process for attaching the component on the rotating shaft. An object of the present invention is to provide a rotating shaft component mounting structure and a rotating shaft component mounting method capable of reducing the number of components on the rotating shaft.

  In order to solve the above-mentioned problems, a rotating shaft (100), a groove (101) formed on the outer peripheral surface (100c) of the rotating shaft (100), and a groove (101) are provided. A positioning member (45) for positioning one or more parts fitted on the rotary shaft (100) and axially relative to the positioning member (45) on the rotary shaft (100) The first member (43a) adjacent to one side, the second member (50) adjacent to the other in the axial direction with respect to the positioning member (45) on the rotation shaft (100), and the rotation shaft (100) The second member (50) or the other member (11a) disposed on the other side in the axial direction than the second member (50) is arranged adjacent to the second member (50) or the other member (11). Locking portion for locking the other end (11d) in the axial direction of the member (11a) (49), and a disengagement prevention portion (19) formed on the second member (50) or another member (11a) to prevent disengagement of the locking member (49). 50) and the other member (11a) are installed so as to be relatively movable in the axial direction with respect to the rotating shaft (100), and the detachment preventing portion (19) is the second member (50) or the other member. (11a) is a protrusion-like portion protruding from the end (11d) to the outer diameter side of the locking member (49), and the second member with the positioning member (45) removed from the rotating shaft (100). By moving the member (50) in one axial direction, the disengagement preventing portion (19) is retracted from the outer diameter side of the locking member (49), while the second member (50) is moved in the other axial direction. In a state where the positioning member (45) is attached to the rotating shaft (100), the disengagement prevention unit (19) Characterized by being configured to be positioned on the outer diameter side of the stop member (49).

  According to the component mounting structure of the rotating shaft according to the present invention, the disengagement preventing portion is moved to the one side in the axial direction with the positioning member removed from the rotating shaft, so that the disengagement preventing portion has the outer diameter of the locking member. The detachment preventing portion is positioned on the outer diameter side of the locking member in a state where the second member is moved to the other side in the axial direction and the positioning member is attached to the rotating shaft while retracting from the side. When installing the locking member for locking the second member or other member on the rotating shaft, the locking member is attached in advance before the positioning member is attached, and then the second member or The positioning member can be attached in a state in which the locking member is prevented from coming off by the parting prevention part of the other member. Therefore, it is possible to provide a disengagement preventing portion for preventing the disengagement of the engaging member in the second member or other member assembled to the rotating shaft before the engaging member. Therefore, since it is not necessary to provide a locking member detachment preventing portion on the part assembled to the rotating shaft after the locking member, it is possible to simplify the configuration of the parts installed on the rotating shaft.

  In addition, in the state where the second member is moved to the other side in the axial direction and the positioning member is attached to the rotating shaft, the disengagement prevention portion is configured to be positioned on the outer diameter side of the locking member. The other member (separate member for adjusting the interval) for disposing of the detachment prevention portion on the inner diameter side of the detachment preventing portion is not necessary. Therefore, the number of parts to be installed on the rotating shaft can be reduced, and the number of parts such as a transmission equipped with the rotating shaft can be reduced, the configuration can be simplified, and the weight can be reduced.

  The above points will be described in light of the prior art described in Non-Patent Document 1. The above-described component mounting structure according to the present invention is for preventing idle gears, cotters, and cotters from being detached from the secondary shaft described in Non-Patent Document 1. Collar member with collar (distance collar), first gear (first gear and surrounding components), first speed clutch (LOW clutch), collar member (31 mm collar), snap ring (locking member) It can be applied to the mounting structure of each part. In this case, as the above-described detachment preventing portion, a flange portion protruding from the clutch guide of the first speed clutch along the axial direction to the outer diameter side of the snap ring is provided. As a result, the snap ring is prevented from coming off at the flange portion, so that it is not necessary to provide a snap ring coming-off stopper on the inner ring of the ball bearing. Therefore, it is possible to omit the groove portion that has been conventionally provided in the inner ring of the ball bearing that is attached after the snap ring. Therefore, since a normal ball bearing not subjected to special processing can be used, the structure of the transmission can be simplified and the cost can be reduced. In addition, since there is no need to distinguish the ball bearing assembly direction (front and rear assembly direction in the axial direction), the assembly process of the transmission can be simplified.

  Further, since it is not necessary to dispose the snap ring inside the groove portion of the ball bearing, the collar member (31 mm collar) adjacent to the snap ring on the opposite side to the ball bearing can be omitted. As a result, the number of parts of the transmission can be reduced, and the configuration can be simplified and the cost can be reduced.

  Further, in the component mounting structure of the rotating shaft according to the present invention, the moving member (51) attached to the second member (50) so as to be relatively movable in the axial direction and the first member (43a) are provided. The moving member (51) that moves in one of the axial directions is brought into contact with the contact member (44) that restricts the movement of the moving member (51), and is fixed on the second member (50). A regulating member (52) that regulates movement of the moving member (51) in the axial direction in a state of being in contact with the abutting portion (44), the abutting portion (44) and the regulating member (52 ) Is disposed on the outer diameter side of the positioning member (45), so that the positioning member (45) is prevented from coming off from the groove (101). Good.

  In the component mounting structure according to the present invention, since it is necessary to mount the positioning member after the locking member, a structure for preventing the positioning member from coming off is required. On the other hand, according to said structure, the moving member installed between the contact part and the control member is arrange | positioned on the outer-diameter side of a positioning member, and the removal from the groove part of a positioning member is prevented. Since the structure is such that the positioning member is attached after the locking member, it is possible to prevent the positioning member from coming off.

  In the component mounting structure of the rotating shaft according to the present invention, the positioning member (45) is a cotter that fits into the groove (101), and the locking member (49) is a server that is fixed to the rotating shaft (100). It may be a clip.

  Moreover, the component attachment method of the rotating shaft concerning this invention fits the rotating shaft (100), the groove part (101) formed in the outer peripheral surface (100c) of the rotating shaft (100), and the groove part (101). A positioning member (45) for positioning one or more components mounted on the rotating shaft (100), and a first member adjacent to one of the positioning member (45) in the axial direction on the rotating shaft (100). The first member (43a) is adjacent to the other of the positioning member (45) in the axial direction on the rotating shaft (100) and is installed to be relatively movable in the axial direction with respect to the rotating shaft (100) Two members (50), a moving member (51) attached to the second member (50) so as to be relatively movable in the axial direction, and one of the first members (43a). The movement member (51) that moves to the side is brought into contact to regulate its movement And the other of the moving member (51) in the axial direction in a state where the moving member (51) is in contact with the abutting portion (44). And a second member (50) on the rotating shaft (100) or another member arranged on one side in the axial direction from the second member (50). A locking member (49) disposed adjacent to (11a) and locking one end (11d) in the axial direction of the second member (50) or the other member (11a); A detachment preventing portion (19) comprising a protruding portion protruding from the end portion (11d) of the member (50) or another member (11a) to the outer diameter side of the locking member (49). A component mounting method, wherein the positioning member (45) is removed from the groove (101) and is installed on the rotating shaft (100). A first step of attaching the locking member (49) to the rotating shaft (100) by moving the member (50) or the second member (50) and the other member (11a) in one axial direction; The second member (50) or the second member (50) and the other member (11a) are moved in the other axial direction, and the disengagement preventing portion (19) is arranged on the outer diameter side of the locking member (49). The second step, the third step of fitting the positioning member (45) into the groove (101) with the moving member (51) disposed in the other axial direction, and the moving member (51) abutting A fourth step of disposing the moving member (51) on the outer diameter side of the positioning member (45) by moving it in one of the axial directions to a position in contact with the portion (44); and a second member (50 ) To restrict the movement of the moving member (51) in the axial direction by attaching the restricting member to (52); It is characterized by having.

  According to the component mounting method of the rotating shaft according to the present invention, the first to fifth steps are performed in this order to lock the second member or other member on the rotating shaft. When installing the locking member, the locking member is attached in advance before the positioning member is mounted, and then the locking member is prevented from coming off by the second member or the other member detachment preventing portion. With this, the positioning member can be attached, and then the positioning member can be prevented from coming off. Thereby, it becomes possible to prevent the locking member from coming off by the second member or the other member coming off preventing portion assembled to the rotating shaft before the locking member. Accordingly, since it is not necessary to provide a part for assembling to the rotating shaft after the locking member, a disengagement preventing portion for preventing the locking member from coming off can be achieved, so that the configuration of the parts installed on the rotating shaft can be simplified.

Further, since it is necessary to attach the positioning member later than the locking member, a structure for preventing the positioning member from coming off is required. On the other hand, according to the mounting method described above, the moving member is moved to one side in the axial direction to the position where the moving member comes into contact with the contact portion, whereby the moving member is arranged on the outer diameter side of the positioning member. Since the step and the fifth step of restricting the movement of the moving member in the axial direction by attaching the restricting member to the second member can prevent the positioning member from coming off from the groove portion. Although it is an attachment method in which the positioning member is attached after the stop member, it is possible to prevent the positioning member from coming off.
In addition, the code | symbol in said parenthesis has shown the code | symbol of the corresponding component of embodiment mentioned later as an example of this invention.

  According to the component mounting structure and the component mounting method of the rotating shaft according to the present invention, it is not necessary to process a special shape of the component to be mounted on the rotating shaft, and the mounting process for mounting the component on the rotating shaft can be simplified. And the number of parts on a rotating shaft can be restrained small.

It is a sectional side view which shows the rotating shaft (secondary shaft) of a transmission provided with the components attachment structure concerning one Embodiment of this invention, and the component installed on this rotating shaft. It is the elements on larger scale of the X section of FIG. (A) is the elements on larger scale of the A section of FIG. 2, (b) is the elements on larger scale of the B section of FIG. It is a figure for demonstrating the process (attachment method) which attaches components on a secondary shaft. It is a figure for demonstrating the process (attachment method) which attaches components on a secondary shaft. It is a figure for demonstrating the process (attachment method) which attaches components on a secondary shaft.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a side sectional view showing a rotating shaft (secondary shaft) of a transmission having a component mounting structure according to an embodiment of the present invention and components installed on the rotating shaft. FIG. 2 is a partially enlarged view of a portion X in FIG. The rotation shaft shown in FIG. 1 is a secondary shaft 100 provided in an automatic transmission for vehicles (hereinafter simply referred to as “transmission”). Although not shown, the transmission including the secondary shaft 100 includes an input shaft and a counter shaft extending in parallel with the secondary shaft 100, and a plurality of gears provided between the input shaft, the secondary shaft, and the counter shaft. This is a so-called parallel shaft type transmission including a stepped transmission mechanism. This transmission has a configuration in which rotation by a driving force input to an input shaft is shifted by a speed change mechanism and output to a countershaft, and is transmitted from the countershaft to a drive wheel of a vehicle via a differential mechanism.

  The above transmission is a stepped transmission of four forward speeds and one reverse speed, and the transmission mechanism includes a first-speed (LOW) gear set and a second-speed gear set that mesh with each other. It has a 3rd speed gear set, a 4th speed gear set, and a reverse gear set. The reverse gear set meshes with each other via a reverse idler gear for reversing the rotation direction. The drive side gear in each of these gear sets is disposed on the input shaft or the secondary shaft 100, and the driven side gear is disposed on the counter shaft.

  Then, a second-speed drive gear (hereinafter simply referred to as “second-speed gear”) 42 or a third-speed idle gear (hereinafter simply referred to as “idle gear”) installed on the secondary shaft 100 in the transmission configured as described above. .) 43 and a first-speed drive gear (hereinafter, simply referred to as “first-speed gear”) 41 as a mounting structure and mounting method for a plurality of components, Can be used.

  As shown in FIG. 1, in the secondary shaft 100, one end and the other end in the axial direction rotate with respect to the transmission case 5 by a first ball bearing 71 and a second ball bearing 72, respectively. It is supported freely. On the secondary shaft 100, the second speed clutch (friction engagement device) 20, the second speed gear 42, the idle gear (first member) 43, and the cotter member (positioning member) are sequentially arranged from the first ball bearing 71 side. 45, a collar member (second member) 50, a washer (spacer member) 47, a first speed gear 41, a first speed clutch (friction engagement device) 10, and a snap ring (locking member) 49 are attached. Hereinafter, each member will be described in order. In the following description, the left, left, right, or right refers to the left, left, right, or right shown in FIG. 1 in the axial direction of the secondary shaft 100.

  The second speed clutch 20 includes a clutch guide 21 fixed to the secondary shaft 100. The clutch guide 21 includes a small-diameter cylindrical base 21a fixed on the secondary shaft 100, a side wall 21b extending radially outward from the left end of the base 21a in the axial direction, and an axial direction from the outer diameter end of the side wall 21b. And a large-diameter cylindrical outer cylinder portion 21c extending to the right along the line. The cylinder chamber 22 is provided inside the side wall portion 21b and the outer cylinder portion 21c, and the clutch piston 23 is fitted into the cylinder chamber 22 so as to be movable in the axial direction. A return spring 24 is disposed opposite the clutch piston 23. The return spring 24 is locked at its left end to a receiving plate 25 fixed to the clutch guide 21, and presses (biases) the clutch piston 23 to the left in the figure.

  A clutch hub 26 formed integrally with the second speed gear 42 is disposed on the inner peripheral side of the outer cylinder portion 21 c of the clutch guide 21. The clutch hub 26 is disposed adjacent to the second gear 42 on the left side in the axial direction. A plurality of friction materials attached to the clutch guide 21 side and a plurality of friction materials attached to the clutch hub 26 side are alternately stacked along the axial direction at a position facing the piston portion 23a of the clutch piston 23. A friction engagement portion 28 is provided. An end plate 27 fixed to the clutch guide 21 is installed at the end of the friction engagement portion 28 opposite to the piston portion 23a.

  The secondary shaft 100 is provided with a first oil passage 100f for supplying lubricating oil and a second oil passage 100g for supplying clutch operating oil. Lubricating oil and clutch operating oil are supplied to the second speed clutch 20 from the first and second oil passages 100f and 100g, respectively. The first oil passage 100 f for supplying lubricating oil communicates with the inside of the clutch guide 21 via a first passage 21 f formed in the clutch guide 21. The second oil passage 100g for supplying clutch hydraulic oil is connected to the cylinder chamber 22 via a second passage 21g formed in the clutch guide 21.

  When the clutch hydraulic oil is supplied to the cylinder chamber 22 through the second oil passage 100g and the second passage 21g, the clutch piston 23 is pressed rightward against the urging force of the return spring 24 by the hydraulic pressure of the hydraulic oil. . As a result, the piston portion 23 a presses the friction engagement portion 28 against the end plate 27. As a result, the friction material of the friction engagement portion 28 is engaged, and the clutch hub 26 and the second speed gear 42 rotate integrally with the clutch guide 21. In this way, power is transmitted by the second gear 42, and the second gear of the transmission is set.

  The second-speed gear 42 engaged and disengaged by the second-speed clutch 20 in this manner is rotatably held on the secondary shaft 100 by the radial bearing 33, and by the first and second thrust bearings 31 and 32 on both sides in the axial direction. Positioning in the thrust direction is made.

  As shown in FIG. 2, the idle gear 43 is disposed adjacent to the right side in the axial direction with respect to the second speed gear 42 (second thrust bearing 32). The idle gear 43 includes a cylindrical portion 43a fixed on the secondary shaft 100 by spline fitting. A cotter member 45 is installed at a position adjacent to the right end 43b of the cylindrical portion 43a. Although not shown in detail, the cotter member 45 is composed of a pair of semicircular arc members installed at positions facing each other on the outer diameter side of the secondary shaft 100. The cotter member 45 is fitted in an annular groove 101 formed on the outer peripheral surface of the secondary shaft 100. The outer diameter side of the cotter member 45 is covered with a cotter cover 51 described later, and the cotter member 45 is prevented from coming off.

  FIG. 3A is a partially enlarged view of a portion A in FIG. As shown in FIG. 2 and FIG. 2, the collar member 50 installed on the right side in the axial direction of the cotter member 45 is a substantially cylindrical member that is rotatably attached to the outer peripheral surface of the secondary shaft 100. The collar member 50 has a left end surface 50 a in contact with the cotter member 45 and a right end surface 50 b in contact with the washer 47. The collar member 50 is provided with a cotter cover (moving member) 51 for preventing the cotter member 45 from coming off and a snap ring (regulating member) 52 for locking the cotter cover 51.

  The cotter cover (moving member) 51 is a substantially cylindrical member that is slidably attached to the outer peripheral surface of the collar member 50. On the other hand, the right end 43b of the cylindrical portion 43a of the idle gear 43 is provided with a contact portion (contact surface) 44 that contacts the cotter cover 51 that moves to the left in the axial direction and restricts its movement. Yes. The collar member 50 is provided with a snap ring (regulating member) 52 fixed on the outer peripheral surface 50 c of the collar member 50. The snap ring 52 restricts the cotter cover 51 from moving to the right in the axial direction in a state where the cotter cover 51 is in contact with the contact portion 44. Then, the groove portion of the cotter member 45 fitted into the groove portion 101 of the secondary shaft 100 by the cotter cover 51 installed between the contact portion 44 of the idle gear 43 (cylindrical portion 43a) and the snap ring 52. Detachment from 101 is prevented.

  As shown in FIG. 2, the washer 47 installed on the right side in the axial direction of the collar member 50 is an annular member for adjusting the axial clearance between the collar member 50 and the first speed gear 41. The first speed gear 41 is formed integrally with the clutch hub 16 of the first speed clutch 10 and is supported on the secondary shaft 100 by a radial bearing 48 so as to be relatively rotatable.

  The first speed clutch 10 includes a clutch guide 11 fixed to the secondary shaft 100. The clutch guide 11 includes a small-diameter cylindrical cylindrical portion 11a fixed on the secondary shaft 100, a side wall portion 11b extending radially outward from the vicinity of the right end of the cylindrical portion 11a in the axial direction, and a side wall portion 11b. A large-diameter cylindrical outer cylinder portion 11c extending leftward from the outer diameter end along the axial direction is integrally provided. The cylinder chamber 12 is provided inside the side wall portion 11b and the outer cylinder portion 11c, and the clutch piston 13 is fitted into the cylinder chamber 12 so as to be movable in the axial direction. A return spring 14 is disposed facing the clutch piston 13. The return spring 14 is locked at its left end to a receiving plate 15 fixed to the clutch guide 11, and presses (biases) the clutch piston 13 to the right.

  A clutch hub 16 formed integrally with the first speed gear 41 is disposed on the inner peripheral side of the outer cylinder portion 11 c of the clutch guide 11. The clutch hub 16 is disposed adjacent to the first gear 41 on the right side in the axial direction. A plurality of friction materials attached to the clutch guide 11 side and a plurality of friction materials attached to the clutch hub 16 side are alternately stacked along the axial direction at a position facing the piston portion 13a of the clutch piston 13. A friction engagement portion 18 is provided. An end plate 17 fixed to the clutch guide 11 is installed at the end of the friction engagement portion 18 opposite to the piston portion 13a.

  As shown in FIG. 1, the secondary shaft 100 is provided with an oil passage 100 h for supplying clutch hydraulic oil. The oil passage 100 h is connected to the cylinder chamber 12 through a passage 11 h formed in the clutch guide 11.

  When the clutch hydraulic oil is supplied to the cylinder chamber 12 through the oil passage 100h and the passage 11h, the clutch piston 13 is pressed to the left against the urging force of the return spring 14 by the hydraulic pressure of the hydraulic oil. As a result, the piston portion 13 a presses the friction engagement portion 18 against the end plate 17. As a result, the friction material of the friction engagement portion 18 is engaged, and the clutch hub 16 and the first speed gear rotate together with the clutch guide 11. In this way, power transmission by the first speed gear 41 is performed, and the first speed (Low) of the transmission is set.

  The collar member 50, the first speed gear 41, and the clutch guide 11 are installed so as to be movable relative to the secondary shaft 100 in the axial direction with the cotter member 45 removed. And the snap ring 49 arrange | positioned on the secondary shaft 100 adjacent to the cylindrical part 11a of the clutch guide 11 is provided.

  FIG. 3B is a partially enlarged view of a portion B in FIG. As shown in FIG. 2 and FIG. 2, the snap ring 49 is engaged with the outer peripheral surface 100 c of the secondary shaft 100 and locks the right end 11 d of the cylindrical portion 11 a of the clutch guide 11. Thereby, the movement of the collar member 50, the first speed gear 41, and the clutch guide 11 to the right side in the axial direction is locked to the secondary shaft 100. Further, a protruding collar portion 19 that protrudes to the right in the axial direction and protrudes to the outer diameter side of the snap ring 49 is provided at the right end 11 d of the cylindrical portion 11 a of the clutch guide 11. The collar portion 19 prevents the snap ring 49 from coming off.

  Next, each of the second speed clutch 20 and the second speed gear 42, the idle gear 43, the cotter member 45, the collar member 50, the washer 47, the first speed gear 41 and the first speed clutch 10, and the snap ring 49 on the secondary shaft 100. A procedure (process) for attaching the component will be described. 4 to 6 are diagrams for explaining the procedure. In order to attach each of the above components to the secondary shaft 100, first, as shown in FIG. 4A, the components excluding the cotter member 45 and the snap ring 49 among the above components are arranged in the order described above. Assemble to. At this time, each component is attached onto the secondary shaft 100 from the right end side of the secondary shaft 100. Thereby, each component except the cotter member 45 and the snap ring 49 is mounted on the secondary shaft 100. In this state, the collar member 50, the first speed gear 41, and the clutch guide 11 are integrally movable relative to the secondary shaft 100 in the axial direction.

  Then, as shown in FIG. 4B, the left end 50a of the collar member 50 is moved by moving the collar member 50, the first speed gear 41, and the clutch guide 11 installed on the secondary shaft 100 to the left in the axial direction. Is brought into contact with the right end 43b (contact portion 44) of the cylindrical portion 43a of the idle gear 43. In this state, the snap ring 49 is attached to the outer peripheral surface 100c of the secondary shaft 100 (first step).

  When the snap ring 49 is attached, as shown in FIG. 5A, the collar member 50, the first speed gear 41, and the clutch guide 11 are moved to the right in the axial direction, so that the right end of the cylindrical portion 11a of the clutch guide 11 is obtained. 11d is brought into contact with the snap ring 49 (second step). In this state, a collar portion (disengagement prevention portion) 19 provided on the clutch guide 11 (cylindrical portion 11 a) is arranged so as to protrude toward the outer diameter side of the snap ring 49, so that the snap ring 49 is disengaged by the collar portion 19. A stop is given.

  Thereafter, as shown in FIG. 5B, the cotter cover 51 is moved (slid) to the right side in the axial direction with respect to the collar member 50, thereby retracting from the upper side of the groove portion 101 to the right side. In this state, the cotter member 45 is fitted and attached to the groove portion 101 (third step). Then, as shown in FIG. 6A, the cotter cover 51 is moved to the left side in the axial direction to a position where it abuts against the abutting portion 44 of the idle gear 43, whereby the cotter cover 51 is moved to the outer diameter side of the cotter member 45. (4th process). Accordingly, the cotter member 45 is prevented from coming off by the cotter cover 51.

  Thereafter, as shown in FIG. 6B, a snap ring 52 is attached (fitted) to the collar member 50, thereby restricting the movement of the cotter cover 51 to the right in the axial direction (fifth step). As a result, the cotter cover 51 is locked in a state of being sandwiched between the contact portion 44 of the idle gear 43 and the snap ring 52. Therefore, there is no possibility that the cotter member 45 is detached from the secondary shaft 100. Further, since the snap ring 49 is also prevented from coming off by the collar portion 19 of the clutch guide 11, there is no possibility of coming off from the secondary shaft 100. Thus, the attachment of each component to the secondary shaft 100 is completed.

  As described above, according to the component mounting structure of the secondary shaft 100 of the present embodiment, the collar member 50 is moved to the left side in the axial direction with the cotter member 45 being removed from the secondary shaft 100, whereby the clutch guide 11 (cylindrical portion 11 a) is retracted from the outer diameter side of the snap ring 49, while the collar member 50 is moved to the right in the axial direction and the cotter member 45 is attached to the secondary shaft 100. When the snap ring 49 for locking the clutch guide 11 (cylindrical portion 11a) is installed on the secondary shaft 100, the cotter is configured so that the portion 19 is positioned on the outer diameter side of the snap ring 49. The snap ring 49 is attached in advance before attaching the member 45, and then the clutch guide is attached. 11 in a state which has been subjected to anti-removal of the snap ring 49 in the flange portion 19 of the (cylindrical portion 11a) can be attached to the cotter member 45. As a result, it is possible to provide a collar portion (disengagement preventing portion) 19 for preventing the snap ring 49 from coming off in the clutch guide 11 assembled to the secondary shaft 100 before the snap ring 49. Therefore, it is not necessary to provide a groove portion for preventing the snap ring 49 from coming off in a part (the inner ring 72a of the second ball bearing 72) assembled to the secondary shaft 100 after the snap ring 49. Therefore, the second ball installed on the secondary shaft 100 The configuration of parts such as the bearing 72 can be simplified.

  In addition, the collar portion 19 of the clutch guide 11 is positioned on the outer diameter side of the snap ring 49 in a state where the collar member 50 is moved to the right in the axial direction and the cotter member 45 is attached to the secondary shaft 100. This eliminates the need for another member (an additional member for adjusting the distance) for disposing the snap ring 49 on the inner diameter side of the collar portion 19. Therefore, the number of parts installed on the secondary shaft 100 can be reduced, and the number of parts of the transmission including the secondary shaft 100 can be reduced, the configuration can be simplified, and the weight can be reduced.

  The above points will be described in the light of the prior art described in Non-Patent Document 1. The above-described component mounting structure according to this embodiment prevents idle gear, cotter, and cotter detachment from the secondary shaft described in Non-Patent Document 1. Collar member for collar (distance collar), first gear (first gear and its surrounding components), first gear clutch (LOW clutch), collar member (31 mm collar), snap ring (locking member) ) Can be applied to the mounting structure of each part. As a result, the snap ring is prevented from coming off at the flange portion of the clutch guide, so that it is not necessary to provide a snap ring coming-off stopper on the inner ring of the ball bearing. Therefore, it is possible to omit the groove provided in the inner ring of the ball bearing attached after the snap ring. As a result, a normal ball bearing that has not been subjected to special processing can be used, so that the structure of the transmission can be simplified and the cost can be reduced. Further, since there is no distinction between the front and rear assembly directions of the ball bearing in the axial direction, the assembly process of the transmission can be simplified.

  Further, since it is not necessary to dispose the snap ring inside the groove of the ball bearing, the collar member (31 mm collar) adjacent to the snap ring on the opposite side to the ball bearing can be omitted. As a result, the number of parts of the transmission can be reduced, and the configuration can be simplified and the cost can be reduced.

  Moreover, according to the component attachment method of the secondary shaft 100 of this embodiment, it is for performing the above-mentioned 1st process to 5th process in this order in order to lock the clad guide 11 on the secondary shaft 100. When the snap ring 49 is installed, the snap ring 49 is attached in advance before the cotter member 45 is attached, and after that, the snap ring 49 is prevented from coming off by the collar portion 19 of the clutch guide 11. A member 45 can be attached.

  Further, in the component mounting method of the present embodiment, since the cotter member 45 needs to be mounted after the snap ring 49, a measure for preventing the cotter member 45 from coming off is necessary. In this regard, according to the mounting method described above, the cotter cover 51 is moved to the left side in the axial direction to the position where the cotter cover 51 comes into contact with the contact portion 44, thereby arranging the cotter cover 51 on the outer diameter side of the cotter member 45. 4 and the fifth step of restricting the movement of the cotter cover 51 in the axial direction by attaching the snap ring 52 to the collar member 50, thereby preventing the cotter member 45 from coming off from the groove portion 101. Can do. Therefore, it is possible to prevent the cotter member 45 from coming off, although the cotter member 45 is attached after the snap ring 49.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the technical idea described in the claims and the specification and drawings. Is possible. For example, in the above embodiment, the example in which the component mounting structure of the rotating shaft according to the present invention is applied to the structure of mounting the component on the secondary shaft included in the parallel shaft type automatic transmission has been shown. The rotating shaft to which the structure is applied may be another rotating shaft of the transmission, or may be a mounting structure for attaching other components. Moreover, you may apply to the attachment structure for attaching components on the rotating shaft with which driving force transmission apparatuses other than a transmission are provided.

  Further, in the above embodiment, the clutch in which the collar portion (disengagement preventing portion) 19 for preventing the snap ring (locking member) 49 from coming off is arranged on the right side in the axial direction from the collar member (second member) 50. Although the case where the guide (other member) 11 is provided is shown, the disengagement preventing portion for preventing the disengagement of the locking member according to the present invention is provided when the second member is adjacent to the locking member. Is provided on the second member. That is, the detachment preventing portion of the present invention can be provided on a member adjacent to the locking member among the second member or another member positioned on the other side in the axial direction than the second member. .

5 Case 10 1-speed clutch 11 Clutch guide 11a Tubular part (other member)
11b Side wall part 11c Outer cylinder part 11d Right end 19 Collar part (detachment prevention part)
20 2nd speed clutch 21 Clutch guides 31 and 32 Thrust bearing 33 Radial bearing 41 1st speed gear 42 2nd speed gear 43 Idle gear 43a Cylindrical part (first member)
43b Right end 44 Contact part 45 Cotter member (positioning member)
47 Washer 48 Radial bearing 49 Snap ring (locking member)
50 Color member (second member)
50a End face (Left end)
50b End face (right end)
50c Outer peripheral surface 51 Cotter cover (moving member)
52 Snap ring (Regulator)
71 First ball bearing 72 Second ball bearing 72a Inner ring 100 Secondary shaft (rotating shaft)
100c Outer peripheral surface 101 Groove

Claims (4)

A rotation axis;
A groove formed on the outer peripheral surface of the rotating shaft;
A positioning member for positioning one or more components fitted on the rotary shaft and fitted in the groove;
A first member adjacent to one of the positioning members on the rotation axis in the axial direction;
A second member adjacent to the other of the positioning member on the rotation axis in the axial direction;
It is arranged adjacent to the second member or another member arranged on the other side in the axial direction from the second member on the rotation shaft, and the second member or the other member A locking member for locking the other end in the axial direction;
A disengagement preventing portion formed on the second member or the other member to prevent disengagement of the locking member;
The second member and the other member are installed so as to be relatively movable in the axial direction with respect to the rotation shaft,
The detachment preventing portion is a protruding portion that protrudes from the end portion of the second member or the other member to the outer diameter side of the locking member,
While the positioning member is removed from the rotating shaft, the second member is moved in one of the axial directions, so that the detachment preventing portion is retracted from the outer diameter side of the locking member,
In the state where the second member is moved to the other side in the axial direction and the positioning member is attached to the rotating shaft, the detachment preventing portion is configured to be positioned on the outer diameter side of the locking member. Features a rotating shaft component mounting structure. A moving member attached to the second member so as to be relatively movable in the axial direction;
An abutting portion provided on the first member for abutting the moving member moving in one of the axial directions to restrict the movement;
A regulating member fixed on the second member and regulating movement of the moving member to the other in the axial direction in a state where the moving member is in contact with the contact portion;
The moving member installed between the contact portion and the regulating member is disposed on the outer diameter side of the positioning member, thereby preventing the positioning member from coming off from the groove. The component mounting structure for a rotary shaft according to claim 1. The positioning member is a cotter that fits into the groove,
The rotating shaft component mounting structure according to claim 1, wherein the locking member is a circlip fixed to the rotating shaft. A rotation axis;
A groove formed on the outer peripheral surface of the rotating shaft;
A positioning member for positioning one or more components fitted on the rotary shaft and fitted in the groove;
A first member adjacent to one of the positioning members on the rotation axis in the axial direction;
A second member that is adjacent to the other of the positioning member on the rotating shaft in the axial direction and is set so as to be movable relative to the rotating shaft in the axial direction;
A moving member attached to the second member so as to be relatively movable in the axial direction;
An abutting portion provided on the first member for abutting the moving member moving in one of the axial directions to restrict the movement;
A regulating member that is fixed on the second member and regulates the movement of the moving member to the other in the axial direction in a state where the moving member is in contact with the contact portion;
It is arranged adjacent to the second member or another member arranged on the other side in the axial direction from the second member on the rotation shaft, and the second member or the other member A locking member for locking the other end in the axial direction;
A detachment preventing portion comprising a protruding portion protruding from the end portion of the second member or the other member toward the outer diameter side of the locking member, and a component mounting method for a rotary shaft,
With the positioning member removed from the groove, the second member or the second member installed on the rotating shaft and the other member are moved in one of the axial directions to move the rotating shaft to the rotating shaft. A first step of attaching the locking member;
A second step of moving the second member or the second member and the other member to the other in the axial direction to dispose the disengagement prevention portion on the outer diameter side of the locking member;
A third step of fitting the positioning member into the groove in a state where the moving member is disposed on the other side in the axial direction;
A fourth step of disposing the moving member on the outer diameter side of the positioning member by moving the moving member to one of the axial directions to a position where the moving member comes into contact with the contact portion;
And a fifth step of restricting movement of the moving member in the axial direction by attaching the restricting member to the second member.

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