JPS633193B2 - - Google Patents

Description

[Detailed Description of the Invention] A. Purpose of the Invention (1) Industrial Application Field The present invention relates to a refueling device for an automobile transmission;
Particularly in a type of transmission in which a transmission mechanism is disposed in a mechanism chamber defined between a pair of cases connected to each other, a bearing formed in one case to support one end of the input shaft of the transmission mechanism. The present invention relates to a lubricating device for lubricating a hole.

(2) Prior art In general, in a transmission, the output shaft is placed close to the oil level in the transmission case, or adjacent to the final output gear that scatters a lot of lubricating oil. The bearing hole is naturally supplied with lubricating oil that is scattered by the rotation of the gear. On the other hand, the input shaft is located at a relatively upper position where it is difficult to get splashed with lubricant, so in conventional transmissions of the above type, an oil gutter is installed in the mechanism chamber to collect the lubricant. The downstream end of the gutter is inserted into a support hole provided in the one case at a position above the bearing hole of the input shaft, and the lubricating oil collected by the oil gutter is supplied from the support hole to the bearing hole. There is (Japanese Patent Application Publication No. 59-164454)
(see publication).

(3) Problems to be Solved by the Invention In such conventional oil supply devices, the mounting structure for stably mounting the oil gutter at a predetermined position in the mechanism chamber is relatively complicated, and the mounting work is also relatively time-consuming. It was troublesome.

The present invention has been proposed in view of the above, and an object of the present invention is to provide a refueling device for an automobile transmission that can solve the above problems.

B. Structure of the Invention (1) Means for Solving the Problems In order to achieve the above object, the present invention provides a system in which a speed change mechanism of a transmission is disposed in a mechanism chamber defined between a pair of cases connected to each other. In one case,
A bearing hole that obstructs one end of the input shaft of the transmission mechanism, and a support hole located above the bearing hole and communicating with the bearing hole are provided. In an oil supply device for an automobile transmission, the downstream end of an oil gutter for collecting scattered lubricating oil in the chamber is inserted and opened,
A pair of hooks are provided in series on both side walls of the oil gutter, and the hooks are removably engaged with support protrusions protruding from the inner wall of the one case to suspend the oil gutter from the inner wall of the one case. Further, the upstream end of the oil gutter can be brought into contact with the other case in order to prevent the oil gutter from separating from the support hole and the support protrusion.

(2) Function When installing the oil gutter, when both cases are separated, simply insert the downstream end of the oil gutter into the support hole of one case, and engage both hooks with the support projections of the same case. The gutter can be easily suspended and temporarily fixed to one of the cases, and if the two cases are tied together in the temporarily suspended state, the oil gutter can be reliably prevented from coming off.

(3) Embodiment An embodiment of the present invention will be described below with reference to the drawings. First, in FIG. 1, the engine E is installed horizontally at the front of the vehicle body, that is, its crankshaft 1 is perpendicular to the direction of travel of the vehicle. It is arranged like this. A transmission device consisting of a clutch 2, a transmission 3, a front wheel drive differential 4 and a transfer 5 is disposed on one side of the engine E. The driving force of engine E is provided by clutch 2 and transmission 3.
The transmission is transmitted to the front wheel drive differential 4 via the drive shafts 6, 7, constant velocity joints 8, 9, transmission shafts 10, 11, and constant velocity joints 12, 13 to the left and right front wheels 14, 15. transmitted to. Also,
The driving force of the engine E is selectively transmitted to the drive shaft 16 via the transmission 3 and transfer 5. The driving force of the drive shaft 16 is transmitted to the rear wheel drive differential 20 via the universal joint 17, propeller shaft 18, and universal joint 19, and from the differential 20 to the drive shafts 21, 22, etc. It is transmitted to left and right rear wheels 29, 30 via velocity joints 23, 24, transmission shafts 25, 26, and constant velocity joints 27, 28.

In FIG. 2 showing details of the transmission device, a clutch case 32 is integrally secured to one side of a crankcase 31 of an engine E, and a transmission case 33 is further integrally secured to this clutch case 32.

A conventionally known clutch 2 is housed in the clutch case 32, and a transmission 3 is housed in a mechanism chamber C defined between the clutch case 32 and the transmission case 33. The transmission 3 consists of a main transmission mechanism 36 and a sub-transmission mechanism 37, and the main transmission mechanism 36 has an input shaft 38 coaxially connected to the crankshaft 1 and connected to the shaft 1 via the clutch 2, and an input shaft 38 connected to the crankshaft 1 via the clutch 2. A first speed gear train G1, a second speed gear train G2, and a third speed gear train G are connected between the shaft 38 and the parallel output shaft 39.
3. A fourth speed gear train G4, a fifth speed gear train G5, and a reverse gear train Gr are provided. The driving force transmitted from the input shaft 38 to the output shaft 39 via the selected gear train among these gear trains G1, G2, G3, G4, G5, and Gr is transmitted to the output shaft at the end closer to the engine E. It is output from an output gear 40 provided at 39.

The input shaft 38 is connected to a bearing hole 4 provided in the clutch case 32 and the transmission case 33, respectively.
1 and 42 through ball bearings 43 and 44, and the output shaft 39
Also, a roller bearing 47 and a ball bearing 48 are installed in bearing holes 45 and 46 provided in the clutch case 32 and the transmission case 33, respectively.
Both ends are rotatably supported via.

The sub-transmission mechanism 37 is used for extremely low speeds below the first speed during all-wheel drive, and includes an intermediate shaft 50 and a sub-shaft 51 that are parallel to the input shaft 38 and output shaft 39. It is arranged in the part near clutch 2 inside. The intermediate shaft 50 is connected to the clutch case 32 and the transmission case 33.
The intermediate shaft 50 has two ends fixedly supported in bearing holes 52 and 53, respectively.
The input shaft 38 constitutes the first gear train G1.
A sub-input gear 55, which is always in mesh with the gear 54, is rotatably supported. Also, the subshaft 51
is rotatably supported at both ends via roller bearings 58, 59 in bearing holes 56, 57 provided in the clutch case 32 and transmission case 33, respectively. A sub-output gear 61 is integrated with the reduction gear 60 which is connected to the auxiliary output gear 61 which is always in mesh with the reduction gear 60 . Further, the gear 62 integrated with the sub-input gear 55 and the gear 63 supported in a relatively rotatable manner on the sub-shaft 51 are always meshed to form a reduction gear train 64. The auxiliary input gear 55, the reduction gear train 64, and the auxiliary output gear 61 constitute a very low speed gear train Gsl. When this very low speed gear train Gsl is established, the driving force of the input shaft 38 is transferred from the drive gear of the first speed gear train G1 to the gear 55,
The signal is output from the output gear 40 via the reduction gear train 64, the subshaft 51, the gears 61, 60, and the output shaft 39.

Lubricating oil L is stored in the transmission case 33 at a specified level. The positional relationship between the oil level of this lubricating oil L and each shaft is as shown in FIG.

In order to lubricate the driving gears of the gear trains G3, G4, G5, their bearings, and other movable members on the input shaft 38, the input shaft 38 has a vertical oil hole 65 passing through its center, and a vertical oil hole 65 passing through the center thereof. A plurality of horizontal oil holes 66, 6 extend radially from the hole 65 and reach a predetermined lubricating part.
0... are bored, and the vertical oil hole 65 is connected to the bearing hole 4.
One end is open at the end face of the input shaft 38 facing the input shaft 38, and the other end is closed at the middle part of the input shaft 38. Further, in order to lubricate the ball bearings 44, 48 of the input and output shafts 38, 39, oil reservoirs 67, 68 are provided in the transmission case 33, which are connected to the bearing holes 42, 46, respectively.

The vertical oil hole 65 and the oil reservoirs 67, 68 are supplied with oil from the first oil supply device S1.

In order to lubricate the driven gears of the gear trains G1 to G4, Gr, their bearings, and other movable members on the output shaft 39, the output shaft 39 has a vertical oil hole 69 passing through its center and a vertical oil hole 69. A plurality of horizontal oil holes 70, 7 extend radially from the hole 69 and reach a predetermined lubricating part.
0... are bored, and the vertical oil hole 69 is connected to the bearing hole 4.
One end is open at the end surface of the output shaft 39 facing the output shaft 39, and the other end is closed at the intermediate portion of the shaft 39. Also, output shaft 3
In order to lubricate the roller bearing 47 of 9, an oil reservoir 72 connected to the bearing hole 45 is provided in the clutch case 32.

The vertical oil hole 69 and the oil reservoir 72 are supplied with oil from the second oil supply device S2.

In order to lubricate the gears 55, 62 and other movable members on the central shaft 50, the intermediate shaft 62 has a vertical oil hole 73 passing through its center, and a predetermined lubrication hole extending radially from the vertical oil hole 73. Multiple horizontal oil holes 7
4, 74, . Further, in order to lubricate the bearing hole 53, the bearing hole 53 is
An oil reservoir 75 connected to the transmission case 3 is provided in the transmission case 3.

In order to lubricate the gear 63 and other movable members on the subshaft 51, the subshaft 51 has a vertical oil hole 76 passing through its center and a predetermined lubricating section extending radially from the vertical oil hole 76. A horizontal oil hole 77 is drilled to reach the auxiliary shaft 51 facing the bearing 53, and a vertical oil hole 76
One end is opened on the end face, and the other end is closed at the middle part of the shaft 51. Further, in order to lubricate the ball bearing 59 of the subshaft 51, an oil reservoir 78 connected to the bearing hole 57 is provided in the transmission case 33.

The vertical oil holes 73, 76 and oil reservoirs 75, 78
is supplied with oil from the third oil supply device S3.

Next, the first, second and third oil supply devices S1, S
2 and S3 will be explained in order.

The first oil supply device S1 is shown in FIGS. 5 to 7. The oil supply device S1 corresponds to the oil supply device according to the present invention, and includes an oil gutter 7 arranged to collect scattered lubricating oil in the mechanism chamber C.
It has 9.

The oil gutter 79 has a rain gutter shape with one end open and the other end closed, and a pair of hooks 80 and 81 are connected to both side walls near the closed end. A support hole 82 adjacent to the upper part of the bearing hole 42 is bored in the transmission case 33, into which the open end of the oil gutter 79 is inserted. The transmission case 33 also has a pair of pin-shaped support projections 8 extending toward the clutch case 32 at a position higher than the support hole 82 and close to the clutch case 32.
3 and 84 are formed, and these support protrusions 8
3 and 84, the hooks 80 and 81 are engaged.
In this way, the oil gutter 79 has a downward slope from the closed end to the open end, and the transmission case 3
3. Therefore, oil garter 79
The scattered lubricating oil collected is poured into the support hole 82.

Further, in order to prevent the oil garter 79 from coming off from the support hole 82 and the support protrusions 83 and 84, the closed end of the oil garter 79 faces the clutch case 32 so as to be able to come into contact with the clutch case 32. By simply inserting the downstream end, that is, the open end, of the oil garter 79 into the support hole 82 and engaging the hooks 81, 82 with the support protrusions 83, 84 in a state where the oil garter 79 is separated from the transmission case 33, the oil garter 79 is It can be easily suspended and temporarily fixed to the case 33, and the transmission case 33 and clutch case 32 can be easily suspended and temporarily fixed to the case 33.
The oil gutter 79 can be reliably fixed to the inner wall of the transmission case 33 by simply tying the gaps between them.

The support hole 82 is communicated with the oil reservoir 67 via a first communication hole 85 bored in the mission case 33, and this oil reservoir 67 is further connected to a second communication hole 85 bored in the mission case 33. It communicates with the oil reservoir 68 through the hole 86 .

Further, the oil reservoir 67 is also communicated with the vertical oil hole 65 via a funnel body 87. The funnel body 87 consists of a flange 87a and a short pipe 87b protruding from the center of the flange 87a to one side.
7a is abutted against the end face of the bearing hole 42, and the short pipe 87b
is inserted into the vertical oil hole 65 so as to communicate the oil reservoir 67 with the vertical oil hole 65, and is held by a holding member 88 fitted to the input shaft 38.

The lubricating oil poured into the support hole 82 from the oil gutter 79 passes through the first communication hole 85 and reaches the oil reservoir 6.
7, some of the oil immediately lubricates the ball bearing 44, and other oil flows from the oil sump 67 to the funnel 8.
The oil that has passed through the short pipe 87b and the second communication hole 86 is transferred to the vertical oil hole 65, and flows out from the plurality of horizontal oil holes 66, 66... to the outer peripheral surface of the input shaft 38. , to lubricate the movable members on the shaft 38. On the other hand, the oil that has passed through the second communication hole 86 enters the oil reservoir 68 and lubricates the ball bearing 48.

The second oil supply device S2 is shown in FIGS. 3 and 8. The oil supply device S2 includes an oil receiving chamber 90 in the clutch case 32, which receives lubricating oil splashed by a transfer drive gear 89 provided in the differential gear 4 above the output shaft 39.

The oil receiving chamber 90 includes a U-shaped enclosing rib 92 that is formed as a bulge on the outer surface of the clutch case 32 directly above the output shaft 39 and has an inlet 90a opening in the direction 91 of oil scattering from the gear 89. , and a cover plate 94 fixed to the end face of the surrounding rib 92 by a plurality of screws 93 . The screw boss 95 into which the screw 93 is screwed is formed by protruding a part of the surrounding rib 92, and the lower screw boss 95
bulges inward of the oil receiving chamber 90 near the inlet 90a to form a weir 95a, and a certain amount of lubricating oil is retained in the oil receiving chamber 90 by this weir 95a.

The bottom of the oil receiving chamber 90 is connected to the oil reservoir 72 through a communication hole 96 formed in the clutch case 32.
This oil reservoir 72 further communicates with the funnel body 9.
7 to the vertical oil hole 69 of the output shaft 39.

The funnel body 97 consists of a flange 97a and a short pipe 97a protruding from the center of the flange 97a to one side. A holding member 98 inserted into the vertical oil hole 69 so as to communicate with the vertical oil hole 69 and fitted onto the output shaft 39
is maintained.

The lubricating oil that is scattered by the rotation of the transfer drive gear 89 and enters the oil receiving chamber 90 flows into the oil reservoir 72 through the communication hole 96, and some of the oil immediately lubricates the roller bearing 47. Other oil passes through the short pipe 97a of the funnel body 97 to the vertical oil hole 69, and then passes through the plurality of horizontal oil holes 70, 70... to the output shaft 3.
9 and lubricates the movable member on the shaft 39.

A boss 94a that supports a support shaft 99 of a transmission mechanism, for example, a fork shaft that supports a shift fork, is integrally connected to the lid plate 94. In this way, the cover plate 94 has the function of supporting the support shaft 99, which contributes to simplifying the structure of the clutch case 32.

The third oil supply device S3 is shown in FIGS. 4, 9 to 11. The oil supply device S3 has an oil collector plate that collects scattered lubricating oil that mainly flows down the inner surface of the mission case 33 in the vicinity of the bearing holes 53 and 57.
3. It is superimposed on the inner wall and fixed with screws 101. The oil collector plate 100 has first and second funnel parts 1 formed by stamping on one side thereof and having an open upper surface.
02, 103, these funnel parts 102, 10
3 are arranged above the oil reservoirs 75 and 78, respectively. The first and second oil receiving parts 10 have open sides facing these funnel parts 102 and 103.
4 and 105 are recessed in the side wall of the mission case 33, and oil receivers 104 and 105 are provided on the side wall.
First and second communication holes 106 and 107 are formed to communicate the oil reservoirs 75 and 78, respectively.

As a result, the lubricating oil scattered by the rotation of various gears within the transmission case 33 adheres to the inner surface of the transmission case 33 and flows down to the oil collector plate 1.
When the oil is collected in the first and second funnel parts 102 and 103 of 00, it is immediately collected in the first and second oil receiving parts 10.
4, 105, and the first and second communication holes 1
06 and 107, respectively, to the oil reservoirs 75 and 78, and part of the oil that has migrated to the oil reservoir 75 immediately lubricates the bearing hole 53 of the intermediate shaft 50, and the other oil lubricates the intermediate shaft 50.
0 into the vertical oil hole 73, and the plural horizontal oil holes 74,
74... to the outer peripheral surface of the intermediate shaft 50, and the shaft 5
Lubricate the moving parts on the 0. Also, part of the oil transferred from the oil reservoir 78 immediately lubricates the ball bearing 59 of the subshaft 51, and the other oil is transferred to the vertical oil hole 7 of the subshaft 51.
6 and flows out from the horizontal oil hole 97 onto the outer peripheral surface of the subshaft 51 to lubricate the movable member on the shaft 51.

C. Effects of the Invention As described above, according to the present invention, the speed change mechanism of the transmission is disposed in the mechanism chamber defined between the pair of cases connected to each other, and the speed change mechanism is disposed in one case. A bearing hole that supports one end of the input shaft of the input shaft, and a support hole that is located above the bearing hole and communicates with the bearing hole are provided. In an oil supply device for an automobile transmission, the downstream end of an oil gutter that collects scattered lubricating oil in a room is opened for insertion, in which a pair of hooks are arranged in series on both side walls of the oil gutter, and
These hooks are removably engaged with support protrusions protruding from the inner wall of the one case to suspend the oil gutter from the inner wall of the one case, and furthermore, the oil gutter is suspended from the support hole and the support protrusion of the oil gutter. In order to prevent separation, the upstream end of the oil gutter can be brought into contact with the other case, so when both cases are separated, the downstream end of the oil gutter can be inserted into the support hole of one case, and both hooks can be inserted into the support hole of the same case. The oil gutter can be easily suspended and temporarily fixed to one case by simply engaging the support protrusion, and in the temporarily suspended state, the oil gutter can be attached to one side by simply tying the two cases together. As a result, the oil gutter can be installed extremely easily and accurately. Furthermore, since there is no need to provide a special fixing device such as a bolt for fixing the oil gutter to the inner wall of the case, the oil gutter mounting structure is extremely simple and can contribute to cost reduction.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; Fig. 1 is a schematic diagram of the power system of an automobile, Fig. 2 is a vertical exploded view of the transmission device shown in Fig. 1, and Fig. 3 is a diagram showing the clutch case of Fig. 2. Fig. 4 is an internal view of the transmission case in Fig. 2, Fig. 5 is a partially enlarged view of Fig. 2,
Fig. 6 is a sectional view taken along the line of Fig. 4, Fig. 7 is a view taken along the arrow in Fig. 6, and Fig. 8 is a sectional view taken along the - line of Fig. 3.
FIG. 9 is a cross-sectional view taken along the line --- in FIG. 4, and FIGS. 10 and 11 are cross-sectional views taken along the --- line and XI--XI line in FIG. C... Mechanism room, S1... Oil supply device, 3... Transmission, 3
2...Clutch case as the other case, 33
…Mission case as one case, 36
...Main transmission mechanism as a transmission mechanism, 42...Bearing hole,
79...Oil gutter, 80,81...Hook, 82
...Support hole, 83, 84...Support protrusion.

Claims (1)

[Claims] 1 The transmission mechanism 36 of the transmission 3 is placed in a mechanism chamber C defined between a pair of cases 32 and 33 that are connected to each other.
is arranged, and one case 33 has a bearing hole 4 that supports one end of the input shaft 38 of the transmission mechanism 36.
2, and a support hole 82 located above the bearing hole 42 and communicating with the bearing hole 42. The support hole 82 is provided with a support hole 82 which is disposed in the mechanism chamber C and contains scattered lubricating oil in the chamber. In a refueling device for an automobile transmission, in which the downstream end of an oil gutter 79 for collecting oil is inserted into an opening, a pair of hooks 80 and 81 are provided in series on both side walls of the oil gutter 79, and
The hooks 80 and 81 are connected to the one case 33.
The oil gutter 79 is removably engaged with support protrusions 83 and 84 protruding from the inner wall of the case 3.
3, the upstream end of the oil gutter can be brought into contact with the other case 32 in order to prevent the oil gutter 79 from separating from the support hole 82 and the support protrusions 83, 84. A refueling device for automobile transmissions.