JP6178643B2 - Compressor assembly method using vane insertion jig - Google Patents

Description

The present invention relates to a vane rotary compressor, and more particularly, to a compressor assembly method using a vane insertion jig for inserting a vane into a vane groove of a rotor of the vane rotary compressor.

  Conventionally, as shown in Patent Document 1, a general vane rotary compressor includes a housing, a compressor accommodated in the housing, and a motor unit that controls driving of the compressor.

  The compressor accommodated in the housing includes a cylinder block having a cylinder chamber on the inner periphery, a pair of side blocks, a rotor accommodated in the cylinder chamber, a vane accommodated in a vane groove formed in the rotor, And a drive shaft that is fixed to the rotor and transmits a rotational driving force.

  When the drive shaft to which the rotational drive force is transmitted by the drive control of the motor unit rotates, the rotor fixed to the drive shaft rotates, and the vane formed on the rotor protrudes from the vane groove and contacts the inner wall of the cylinder chamber. The refrigerant is compressed by contact.

  A spring is disposed at the bottom of the vane so that the vane can be easily ejected from the vane groove.

JP 2009-209702 A

  However, in the vane rotary compressor shown in Patent Document 1, since the pin for preventing the buckling of the spring is press-fitted into the bottom of the vane, the vane is inserted from the end surface of the rotor after inserting the rotor into the cylinder block. There was a problem that it could not be inserted into the groove.

  Also, after inserting the spring and vane into the vane groove of the rotor, it must be inserted into the cylinder block, and when inserting the rotor into the cylinder block, the vane tends to jump out of the vane groove due to the urging force of the spring. The compressor could not be assembled easily.

Therefore, an object of the present invention is to provide a compressor assembling method using a vane insertion jig capable of easily assembling a compressor without the vane inserted into the rotor jumping out of the vane groove.

In order to solve the above problems, the present invention includes a base 33, a mounting portion 35 disposed on the base 33, and a jig main body 37 that can be attached to and detached from the base 33, The jig main body portion 37 includes a rotor accommodating portion 45 that accommodates the rotor 7 of the compressor 1, and a vane insertion jig 31 that includes a vane insertion slit 47 that inserts the vane 9 into the vane groove 19 formed in the rotor 7. The compressor 1 is assembled using a vane (9) to which a spring (23) is attached at the bottom , and the compressor 1 includes a cylinder block having a non-circular cylinder chamber 13 on the inner periphery. 3, a pair of side blocks 5 disposed at both ends of the cylinder block 3, a rotor 7 rotatably accommodated in the cylinder chamber 13, and a plurality of vane grooves 19 formed in the rotor 7. Housed in A first step of disposing the rotor 7 in the rotor accommodating portion 45 of the jig main body portion 37, and the jig main body portion 37. A second step of inserting the vane 9 into the vane groove 19 of the rotor 7 from the vane insertion slit 47, a third step of rotating the rotor 7 in the rotor accommodating portion 45, the second step, and the third step. And the jig main body 37 together with the rotor 7 containing the vane 9 in the vane groove 19 is arranged on the upper side of the one side block 5 and the cylinder block 3, And a fifth step of inserting the rotor 7.

  Further, the vane 9 accommodated in the vane groove 19 is inserted into the cylinder block 3 at a position other than the short diameter position of the cylinder chamber 13.

  The mounting portion 35 includes a mounting main body portion 39 provided on the base 33, and the positioning convex portion 51 of the mounting guide portion 49 of the mounting main body portion 39 and the positioning concave portion 25 of the drive shaft 11 The cylinder block 3 and the rotor 7 are centered.

In the present invention, the first step of arranging the rotor 7 in the rotor accommodating portion 45 of the jig main body 37 and the second step of inserting the vane 9 from the vane insertion slit 47 of the jig main body 37 into the vane groove 19 of the rotor 7. A process, a third process of rotating the rotor 7 in the rotor housing portion 45, a fourth process of repeating the second process and the third process a plurality of times, and the rotor 7 housing the vane 9 in the vane groove 19; The tool body 37 is disposed on one side block 5 and the upper part of the cylinder block 3 and includes a fifth step of inserting the rotor 7 into the cylinder chamber 13, whereby the vane 9 inserted into the rotor 7 is spring-loaded. The vane 9 can be inserted into the rotor 7 without jumping out of the vane groove 19 by the urging force of 23.

The whole perspective view of the compressor of the present invention. The disassembled whole perspective view of the compressor of this invention. (A) Top view of insertion jig showing first step, (b) Immediate view of insertion jig showing first step. (A) Top view of insertion jig showing second step, (b) Immediate view of insertion jig showing second step. (A) Top view of insertion jig showing third step, (b) Immediate view of insertion jig showing third step. (A) Top view of insertion jig showing fourth step, (b) Immediate view of insertion jig showing fourth step. (A) Top view of insertion jig showing fifth step, (b) Immediate view of insertion jig showing fifth step. The whole insertion jig whole sectional view showing the 5th process.

  Hereinafter, embodiments of the compressor and the vane insertion jig of the present invention will be described in detail with reference to FIGS.

  First, the compressor of the present invention will be described with reference to FIGS.

  As shown in FIGS. 1 and 2, the compressor 1 assembled using the vane insertion jig 31 of the present invention is arranged so as to sandwich the cylinder block 3 having a substantially O-shaped cross section and both ends of the cylinder block 3. A pair of side blocks 5, a rotor 7 rotatably accommodated in a cylinder chamber 13 formed in the inner periphery of the cylinder block 3, and a vane accommodated in a vane groove 19 formed in the rotor 7. 9 and a drive shaft 11 that is fixed to the rotor 7 and transmits a rotational driving force.

  The cylinder block 3 is formed with a non-circular cylinder chamber 13 having a major axis and a minor axis on the inner peripheral side, and includes a front side end surface 15 with which a side block 5 described later contacts and a rear side end surface 17. .

  The non-circular cylinder chamber 13 is formed in a distorted circular shape, and the distance between the inner wall of the cylinder chamber 13 and the outer peripheral surface of the rotor 7 is compared by arranging the rotor 7 in the cylinder chamber 13. A major axis position in which the distance between the minor axis position of the target minor axis and the inner wall of the cylinder chamber 13 and the outer peripheral surface of the rotor 7 is longer than the minor axis position is formed. Moreover, this short diameter position and long diameter position are arrange | positioned in the position (opposite position) which opposes.

  The pair of side blocks 5 arranged so as to sandwich the cylinder block 3 includes a front side block 5a and a rear side block 5b.

  The front side block 5a is formed with an end surface 6a on the cylinder side, and the end surface 6b is also formed on the cylinder side of the rear side block 5b. The cylinder block 3 is held between the end face 6a and the end face 6b.

  The rotor 7 rotatably accommodated in the inner periphery of the cylinder chamber 13 is formed in a columnar shape, and a plurality of vane grooves 19 in which vanes 9 described later are accommodated are formed. The vane groove 19 is formed with a spring accommodating portion 27 in which one end of a spring 23 described later is fixed and a restricting portion accommodating portion 29 in which the spring restricting portion 21 is accommodated.

  The vane 9 accommodated in the rotor 7 is formed with a spring restricting portion 21 protruding from the bottom portion of the vane 9, and a spring 23 urging in a direction protruding from the vane groove 19 is fixed to the spring restricting portion 21. Is done. As described above, the spring 23 is accommodated in the spring accommodating portion 27 provided at the one end side in the vane groove 19, and the end portion on the other end side is regulated by the spring restricting portion 21 protruding from the bottom portion of the vane 9. And is in contact with the bottom of the vane 9.

  The drive shaft 11 fixed to the rotor 7 is fixed so as to pass through the rotor 7, and a positioning recess 25 to be engaged with a positioning protrusion 51 to be described later is formed at an end on one end side. .

  Next, the vane insertion jig will be described with reference to FIG.

  As shown in FIG. 8, the vane insertion jig 31 includes a base 33, a mounting portion 35 disposed on the base 33, and a jig main body 37 that can be attached to and detached from the base 33.

  The attachment portion 35 includes an attachment main body portion 39 provided on the base 33, a flange portion 41 protruding from an end portion of the attachment main body portion 39, and a bolt 43 that fixes the base 33 and the flange portion 41. Yes.

  The mounting main body 39 disposed on the base 33 includes a mounting guide portion 49 having spring properties and a positioning convex portion 51 provided at the tip of the mounting guide portion 49.

  The attachment guide portion 49 having a spring property is formed so as to protrude from the upper surface of the attachment main body portion 39, and is formed to be movable in the direction of the base 33 and the direction away from the base 33.

  Further, a positioning convex portion 51 is formed to protrude from the tip of the mounting guide portion 49 and engages with the positioning concave portion 25 of the drive shaft 11 described above.

  The quadrangular columnar jig main body 37 includes a rotor accommodating portion 45 that accommodates the rotor 7 of the compressor 1 and a vane insertion slit 47 that inserts the vane 9 into the vane groove 19 formed in the rotor 7.

  The rotor accommodating portion 45 that accommodates the rotor 7 is provided in the same shape as the outer periphery of the rotor 7, and is formed larger than the outer periphery of the rotor 7.

  Further, a vane insertion slit 47 is formed so as to communicate the rotor housing portion 45 and the outer peripheral wall of the jig main body portion 37.

  The vane insertion slit 47 is formed to be larger than the thickness of the vane 9, and has a shape that allows the vane 9 to be inserted into the rotor accommodating portion 45 from the vane insertion slit 47.

  In the present embodiment, the vane insertion slits 47 are provided only at one place, but the vane insertion slits 47 may of course be provided at a plurality of places.

  Next, a method for assembling the compressor 1 using the vane insertion jig 31 will be described with reference to FIGS.

First, as shown in FIGS. 3A and 3B, the rotor 7 is disposed in the rotor accommodating portion 45 of the jig main body portion 37. (First step)
4 (a) and 4 (b), the rotor 7 accommodated in the rotor accommodating portion 45 is rotated, and the vane insertion slit 47 formed in the jig main body portion 37 and the vane groove 19 of the rotor 7 are obtained. Rotate the rotor 7 to a position where is communicated. The vane 9 is inserted from the vane insertion slit 47 at a position where the vane insertion slit 47 and the vane groove 19 communicate with each other. (Second step)
In addition, the spring 23 mentioned above is arrange | positioned at the bottom part of the vane 9 inserted in this 2nd process, and is inserted in the vane groove | channel 19 with the vane 9. FIG.

Further, as shown in FIG. 4A, the rotor 7 is rotated in a state in which the tip of the vane 9 inserted in the second step is completely accommodated in the vane groove 19, and FIGS. The state shown in b) is obtained. (Third step)
In the state of the third step, the vane 9 tries to protrude from the vane groove 19 by the urging force of the spring 23, but the vane 9 comes into contact with the rotor accommodating portion 45 and prevents the vane 9 from jumping out of the vane groove 19. doing.

Then, as shown in FIGS. 6A and 6B, the second and third steps described above are repeated a plurality of times until the vanes 9 are inserted into the plurality of vane grooves 19. (4th process)
As shown in FIGS. 7A and 8, the jig main body 37 is disposed on the upper portion of the attachment portion 35 in a state where the vanes 9 are inserted into all the vane grooves 19.

  As shown in FIGS. 7B and 8, when the jig main body portion 37 is arranged on the upper portion of the attachment portion 35, one side block 5 (rear side block 5 b) and the cylinder block are included in the attachment portion 35. 3 is mounted on the mounting portion 35 in a state of being assembled, and the vane insertion jig 31 is mounted on the front side end face 15 of the cylinder block 3.

  Further, when the vane insertion jig 31 is placed, the rotor 7 is rotated to adjust the position of the vane 9 so that the vane 9 is inserted at a position other than the short diameter position of the cylinder chamber 13.

  At this time, the vane insertion jig 31 is disposed in the cylinder block 3, and the positioning concave portion 25 formed on one end side of the drive shaft 11 is engaged with the positioning convex portion 51 of the mounting main body 39, so that the cylinder block 3 and the rotor are engaged. 7 centering can be performed.

Then, with the vane insertion jig 31 placed on the front side end face 15 of the cylinder block 3, the rotor 7 is separated from the cylinder chamber of the cylinder block 3 by separating the cylinder block 3 and the rear side block 5 b from the mounting portion 35. 13 is inserted. (5th process)
As described above, according to the present invention, the jig main body portion 37 includes the rotor accommodating portion 45 that accommodates the rotor 7 of the compressor 1 and the vane that inserts the vane 9 into the vane groove 19 formed in the rotor 7. By providing the insertion slit 47, the vane 9 can be prevented from jumping out from the vane groove 19 provided in the rotor 7.

  In addition, a first step of arranging the rotor 7 in the rotor housing portion 45 of the jig main body portion 37, and a second step of inserting the vane 9 from the vane insertion slit 47 of the jig main body portion 37 into the vane groove 19 of the rotor 7; The jig main body together with the third step of rotating the rotor 7 in the rotor accommodating portion 45, the fourth step of repeating the second step and the third step a plurality of times, and the rotor 7 accommodating the vane 9 in the vane groove 19 The portion 37 is arranged on one side block 5 and the upper part of the cylinder block 3 and includes a fifth step of inserting the rotor 7 into the cylinder chamber 13, so that the vane 9 inserted into the rotor 7 The vane 9 can be inserted into the rotor 7 without jumping out of the vane groove 19 by the urging force.

  Furthermore, the clearance between the vane 9 and the inner wall of the cylinder chamber 13 can be secured by inserting the vane 9 accommodated in the vane groove 19 into the cylinder block 3 at a position other than the short diameter position of the cylinder chamber 13. Further, it is possible to prevent the tip of the vane 9 and the inner wall of the cylinder chamber 13 from being damaged.

  In addition, center positioning of the cylinder block 3 and the rotor 7 can be performed by the positioning convex portion 51 of the mounting guide portion 49 and the positioning concave portion 25 of the drive shaft 11.

  Moreover, since the vane insertion jig 31 of the present invention combines the insertion of the vane 9 and the spring 23 into the vane groove 19 and the insertion of the rotor 7 into the cylinder block 3, the manufacturing cost and man-hours can be reduced. Can do.

  In this embodiment, when inserting the vane into the vane groove, the rotor is rotated, but the rotation direction of the rotor may be any rotation.

  The present invention can be used for a vane rotary compressor.

DESCRIPTION OF SYMBOLS 1 Compressor 7 Rotor 9 Vane 19 Vane groove 23 Spring 31 Vane insertion jig 33 Base 35 Mounting part 39 Mounting main body part 47 Vane insertion slit

Claims (3)

The jig main body comprises a base (33), a mounting portion (35) disposed on the base (33), and a jig main body (37) detachable from the base (33). The part (37) includes a rotor housing part (45) that houses the rotor (7) of the compressor (1), and a vane that inserts the vane (9) into the vane groove (19) formed in the rotor (7). A method for assembling a compressor (1) using a vane (9) having a spring (23) attached to the bottom using a vane insertion jig (31) having an insertion slit (47),
The compressor (1) includes a cylinder block (3) having a non-circular cylinder chamber (13) on the inner periphery, and a pair of side blocks (5) disposed at both ends of the cylinder block (3). A rotor (7) rotatably accommodated in the cylinder chamber (13); a vane (9) accommodated in a plurality of vane grooves (19) formed in the rotor (7); A drive shaft (11) fixed to the rotor (7),
A first step of disposing the rotor (7) in the rotor accommodating portion (45) of the jig body (37);
A second step of inserting the vane (9) from the vane insertion slit (47) of the jig body (37) into the vane groove (19) of the rotor (7);
A third step of rotating the rotor (7) in the rotor housing (45);
A fourth step of repeating the second step and the third step a plurality of times;
The jig body (37) is disposed on the upper side of one side block (5) and the cylinder block (3) together with the rotor (7) containing the vane (9) in the vane groove (19). 13) a fifth step of inserting the rotor (7) in
A method for assembling the compressor (1) using the vane insertion jig (31), comprising: A method for assembling a compressor (1) using the vane insertion jig (31) according to claim 1,
A vane insertion jig (31), wherein the vane (9) accommodated in the vane groove (19) is inserted into the cylinder block (3) at a position other than the short diameter position of the cylinder chamber (13). Assembling method of compressor (1) using A method for assembling a compressor (1) using the vane insertion jig (31) according to claim 1 or 2,
The attachment portion (35) includes an attachment main body portion (39) provided on the base (33),
The cylinder block (3) and the rotor (7) are formed by the positioning convex portion (51) of the mounting guide portion (49) of the mounting main body portion (39) and the positioning concave portion (25) of the drive shaft (11). A method of assembling the compressor (1) using the vane insertion jig (31), characterized in that centering is performed.

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