Lock pin type automobile synchronizer

Abstract

The utility model discloses a lock pin type automobile synchronizer which comprises a synchronizer body, an upper clamping piece, an inner clamping piece and a lower clamping piece are sequentially stacked in the synchronizer body from top to bottom, a supporting ring is concentrically fixed in the synchronizer body, and the supporting ring is connected with the inner clamping piece. A plurality of positioning holes distributed at equal intervals are axially formed in the outer portion of the inner clamping piece and the outer portion of the supporting ring, a first inserting shaft and a second inserting shaft are inserted into each positioning hole and axially fixed to the lower clamping piece, a long circular groove is axially formed in the outer portion of the upper clamping piece, and the first inserting shafts and the second inserting shafts axially penetrate through the long circular groove in a sliding mode. A limiting piece movably connected with the first inserting shaft and the second inserting shaft is movably connected into the long circular groove. The synchronizer body and the clamping pieces are connected through the first inserting shaft, the second inserting shaft, the limiting piece composed of the hollow block, the clamping plate and the locking block and the adjusting mechanism arranged in the hollow block, the synchronizer body and the clamping pieces do not need to be disassembled through tools, and the disassembling steps of the clamping pieces are simplified.

Description

Technical Field

[0001] The utility model relates to the technical field of synchronizers, in particular to a lock pin type automobile synchronizer. Background Art

[0002] The role of the synchronizer in a manual transmission is very obvious. That is, when shifting gears, the speed of the gear at the power output end is faster than the gear that is about to be shifted into this gear. If there is no synchronizer, forcing a slow-rotating gear into a high-speed rotating gear will definitely cause gear rattling.

[0003] The authorized patent with the known application number: CN202121715985.8 discloses a pneumatic shift three-cone automobile synchronizer, including a synchronizer body, a synchronizer ring is arranged on the inner side of the synchronizer body, and the synchronizer ring is composed of a lower clamp, an inner clamp and an upper clamp, and the inner clamp is located between the lower clamp and the upper clamp, and a first outer gear sleeve is arranged on the outer side of the synchronizer body, and a second outer gear sleeve is arranged on one side of the first outer gear sleeve; the first outer gear sleeve and the inner clamp are arranged for easy use, and the first outer gear sleeve and the second outer gear sleeve can be replaced, so that they can continue to be used by replacement when damaged, which can avoid waste and facilitate maintenance. At the same time, the inner clamp can be replaced, so that synchronizer rings of different thicknesses can be formed by adjusting the thickness of the inner clamp, which has better applicability, and the missing holes opened on the inner clamp can reduce the weight of the synchronizer ring and achieve lightweight.

[0004] However, in the implementation of relevant technologies, it was found that the above technical solution has the following problems: it is not convenient to disassemble and replace the inner clip during use, and bolts are used to fix the three upper, inner and lower clips. When disassembling and replacing the inner clip, it is necessary to use tools to screw multiple bolts one by one for disassembly and assembly. The operation steps are cumbersome and time-consuming, which easily increases the operation time of the staff, thereby reducing the convenience of disassembly and assembly of the clip and the replacement efficiency. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a locking pin type automobile synchronizer.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a locking pin type automobile synchronizer, including a synchronizer body, an upper clip, an inner clip and a lower clip are stacked in sequence from top to bottom in the synchronizer body, a concentric fixed support ring is fixed in the synchronizer body, the support ring is connected to the inner clip, the outer part of the inner clip and the outer part of the support ring are axially provided with a plurality of equidistantly distributed positioning holes, a first plug-in shaft and a second plug-in shaft are respectively inserted in each positioning hole, the first plug-in shaft and the second plug-in shaft are axially fixed to the lower clip, an elongated circular groove is axially provided on the outer part of the upper clip, the first plug-in shaft and the second plug-in shaft both axially slide through the elongated circular groove, and a limiting member movably connected to the first plug-in shaft and the second plug-in shaft is movably connected in the elongated circular groove.

[0007] As a further description of the above technical solution: a plurality of equidistant annular T-shaped grooves are axially opened on the inner side of the support ring, a T-shaped block is movably inserted in each of the T-shaped grooves, and the T-shaped block is fixed on the outside of the inner clip.

[0008] As a further description of the above technical solution: the limiting member includes an elongated ring movably inserted in the elongated groove, two mirror-symmetrical clamps are movably connected inside the elongated ring, the outer edges of the first plug-in shaft and the second plug-in shaft are radially provided with a locking groove, the two locking grooves are facing opposite to each other, a locking block is movably inserted in each locking groove, the two locking blocks are respectively fixedly connected to the two clamps, a hollow block is provided between the two clamps, the hollow block is fixedly connected to the middle section of the elongated ring, an adjustment mechanism is movably connected inside the hollow block, and the adjustment mechanism is fixedly connected to the two clamps.

[0009] As a further description of the above technical solution: the adjusting mechanism includes a gear rotatably connected to the hollow block, the outside of the gear meshing with two radially symmetrical tooth plates, the tooth plates movably connected to the hollow block, the upper and lower surfaces of the hollow block each vertically penetrate a through slot, each of the through slots has a tooth plate movably connected therein, and each end of each tooth plate has a clamping plate fixed thereto, a first blind hole is concentrically provided on the end face of the gear, a push block is axially telescopically connected to the first blind hole, the push block is composed of a push rod and a rotating block fixed to each other, a through hole connected thereto is horizontally penetrated by the outside of the hollow block, and the push block is movably connected to the through hole.

[0010] As a further description of the above technical solution: two radially symmetrical first limit grooves are axially opened on the inner side of the through hole, a limit block is movably inserted in the first limit groove, the limit block is fixedly connected to the push block, two second limit grooves adapted to the limit block are axially opened on the inner wall of the first blind hole, a second blind hole is concentrically opened on the inner wall of the first blind hole, two mirror-symmetrical first sliding grooves are axially opened in the second blind hole, a first slider is slidably connected in the first sliding groove, the first slider is fixedly connected to a rotating shaft, and a first spring is jointly fixed between the rotating shaft and the second blind hole.

[0011] As a further description of the above technical solution: two second sliding grooves are vertically opened in the hollow block, a second slider is slidably connected in each of the second sliding grooves, a tooth plate is fixed at the end of each of the second sliders, and a second spring is commonly fixed between each of the second sliders and the second sliding groove.

[0012] The utility model has the following beneficial effects:

[0013] Compared with the prior art, the lock pin type automobile synchronizer utilizes the first plug shaft, the second plug shaft and a limit piece consisting of a hollow block, a clamping plate and a locking block, and an adjustment mechanism is arranged in the hollow block to connect the synchronizer body with each clamping piece, so that when the clamping piece is disassembled, no tools are required to disassemble it, which simplifies the disassembly steps of the clamping piece and improves the disassembly efficiency of the clamping piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a three-dimensional diagram of the overall structure of a lock pin type automobile synchronizer proposed by the utility model;

[0015] Figure 2 This is a three-dimensional diagram of the connection between the lower clip of a lock pin type automobile synchronizer and the synchronizer body proposed by the utility model;

[0016] Figure 3 A locking pin type automobile synchronizer proposed by the utility model Figure 1 A magnified view of the structure at center A;

[0017] Figure 4 This is a main cross-sectional view of the connection between the long circular ring and the hollow block of a lock pin type automobile synchronizer proposed by the utility model;

[0018] Figure 5 This is a connection cross-sectional view of a lock pin type automobile synchronizer proposed by the utility model;

[0019] Figure 6 A locking pin type automobile synchronizer proposed by the utility model Figure 4 A magnified view of the structure at B in the middle;

[0020] Figure 7 A locking pin type automobile synchronizer proposed by the utility model Figure 5 Enlarged view of the structure at C in the middle.

[0021] Legend:

[0022] 1. Synchronizer body; 2. Upper clamp; 3. Long circular groove; 4. Long circular ring; 5. Inner clamp; 6. First plug shaft; 7. Lower clamp; 8. Second plug shaft; 9. Support ring; 10. T-slot; 11. T-block; 12. Clamp; 13. Push block; 14. Through hole; 15. Hollow block; 16. Through groove; 17. Tooth plate; 18. Lock groove; 19. Lock block; 20. Gear; 21. Second slider; 22. Second slide groove; 23. Second spring; 24. First blind hole; 25. Limit block; 26. First limit groove; 27. Second limit groove; 28. First slide groove; 29. ​​Second blind hole; 30. First spring; 31. First slider; 32. Rotating shaft. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Reference Figures 1 to 7 The utility model provides a lock pin type automobile synchronizer: it includes a synchronizer body 1, in which an upper clip 2, an inner clip 5 and a lower clip 7 are stacked in sequence from top to bottom in the synchronizer body 1, a concentric fixed support ring 9 is arranged in the synchronizer body 1, and the support ring 9 is connected to the inner clip 5, and a plurality of equidistant annular T-shaped grooves 10 are axially arranged on the inner side of the support ring 9, and a T-shaped block 11 is movably inserted in each T-shaped groove 10, and the T-shaped block 11 is fixed to the outside of the inner clip 5, and a plurality of equidistant positioning holes are axially arranged on the outside of the inner clip 5 and the outside of the support ring 9, and a first plug shaft 6 and a second plug shaft 8 are respectively inserted in each positioning hole, and the first plug shaft 6 and the second plug shaft 8 are axially fixed to the lower clip 7, and an elongated circular groove 3 is axially arranged on the outside of the upper clip 2, and the first plug shaft 6 and the second plug shaft 8 are axially slid through the elongated circular groove 3, and a limiter movably connected to the first plug shaft 6 and the second plug shaft 8 is movably connected in the elongated circular groove 3;

[0025] The limiting member includes an elongated circular ring 4 movably inserted in the elongated circular groove 3, two mirror-symmetrical clamping plates 12 are movably connected inside the elongated circular ring 4, a locking groove 18 is radially provided on the outer edges of the first plug-in shaft 6 and the second plug-in shaft 8, the two locking grooves 18 face oppositely, a locking block 19 is movably inserted in each locking groove 18, the two locking blocks 19 are respectively fixedly connected to the two clamping plates 12, a hollow block 15 is provided between the two clamping plates 12, the hollow block 15 is fixedly connected to the middle section of the elongated circular ring 4, an adjusting mechanism is movably connected inside the hollow block 15, and the adjusting mechanism is fixedly connected to the two clamping plates 12;

[0026] The adjusting mechanism includes a gear 20 rotatably connected in the hollow block 15, the outside of the gear 20 meshes with two radially symmetrical tooth plates 17, the tooth plate 17 is movably connected in the hollow block 15, two second slide grooves 22 are vertically provided in the hollow block 15, a second slider 21 is slidably connected in each second slide groove 22, a tooth plate 17 is fixed at the end of each second slider 21, a second spring 23 is commonly fixed between each second slider 21 and the second slide groove 22, a through slot 16 is vertically penetrated through the upper and lower surfaces of the hollow block 15, a tooth plate 17 is movably penetrated in each through slot 16, a clamping plate 12 is fixed at the end of each tooth plate 17, a first blind hole 24 is concentrically provided on the end face of the gear 20, a push block 13 is axially telescopically connected in the first blind hole 24, the push block 13 is composed of a push rod and a rotating block fixed to each other, a through hole 14 connected thereto is horizontally penetrated outside the hollow block 15, and the push block 13 is movably penetrated in the through hole 14.

[0027] Two radially symmetrical first limit grooves 26 are axially provided on the inner side of the through hole 14, and a limit block 25 is movably inserted in the first limit groove 26, and the limit block 25 is fixedly connected to the push block 13. Two second limit grooves 27 adapted to the limit block 25 are axially provided on the inner wall of the first blind hole 24, and a second blind hole 29 is concentrically provided on the inner wall of the first blind hole 24. Two mirror-symmetrical first sliding grooves 28 are axially provided in the second blind hole 29, and a first slider 31 is slidably connected in the first sliding groove 28. The first slider 31 is fixedly connected to a rotating shaft 32, and a first spring 30 is fixed between the rotating shaft 32 and the second blind hole 29.

[0028] By utilizing the first plug shaft 6, the second plug shaft 8, and a limiting member consisting of a hollow block 15, a clamping plate 12, and a locking block 19, and arranging an adjustment mechanism in the hollow block 15, the synchronizer body 1 is connected to each clamping piece, so that when the clamping piece is disassembled, no tools are required to disassemble it, thereby simplifying the disassembly steps of the clamping piece and improving the disassembly efficiency of the clamping piece.

[0029] Working principle: When installing each clip and the synchronizer body 1, first connect the inner clip 5 with the support ring 9 through the T-shaped block 11 and the T-shaped slot 10, and then install the lower clip 7 at the bottom of the synchronizer, so that the first plug shaft 6 and the second plug shaft 8 on the lower clip 7 pass through the positioning holes on the support ring 9 and the inner clip 5 respectively, and then install the upper clip 2 on the upper end of the inner clip 5, so that the first plug shaft 6 and the second plug shaft 8 pass through the holes on the long circular slot 3, and then put the long circular ring 4 into the long circular slot 3, and then push the push block 13 inward, so that the limit block 25 on the push block 13 is disengaged from the first limit slot 26 and enters the second limit slot 27 on the gear 20, and at the same time the first spring 30 enters The push block 13 is compressed and then rotated. The push block 13 drives the gear 20 to rotate. The gear 20 drives the meshing tooth plates 17 on both sides to perform relative displacement, so that the tooth plates 17 are retracted into the hollow block 15. At the same time, the second spring 23 is compressed, so that the long circular ring 4 is installed into the inside of the long circular groove 3. Then the push block is released, and the second spring 23 in the compressed state is reset. When the second spring 23 is reset, the two tooth plates 17 are pushed to move in the opposite direction, so that the locking blocks 19 on the two splints 12 are respectively inserted into the locking grooves 18 on the first plug shaft 6 and the second plug shaft 8. At the same time, the first spring 30 in the compressed state is reset, so that the limit block 25 moves from the second limit groove 27 to the first limit groove 26.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A locking pin type automobile synchronizer, comprising a synchronizer body (1), characterized in that: An upper clamp (2), an inner clamp (5) and a lower clamp (7) are stacked in sequence from top to bottom in the synchronizer body (1); a support ring (9) is fixed concentrically in the synchronizer body (1); the support ring (9) is connected to the inner clamp (5); the outer portion of the inner clamp (5) and the outer portion of the support ring (9) are both axially provided with a plurality of equally spaced positioning holes; a first plug shaft (6) and a second plug shaft (8) are respectively inserted into each positioning hole; the first plug shaft (6) and the second plug shaft (8) are both axially fixed to the lower clamp (7); an elongated circular groove (3) is axially provided on the outer portion of the upper clamp (2); the first plug shaft (6) and the second plug shaft (8) are both axially slidable through the elongated circular groove (3); a stopper movably connected to the first plug shaft (6) and the second plug shaft (8) is movably connected in the elongated circular groove (3).

2. A locking pin type automobile synchronizer according to claim 1, characterized in that: A plurality of T-shaped grooves (10) equidistantly distributed in an annular manner are axially provided on the inner side of the support ring (9), a T-shaped block (11) is movably inserted into each of the T-shaped grooves (10), and the T-shaped block (11) is fixed to the outside of the inner clamping piece (5).

3. A locking pin type automobile synchronizer according to claim 1, characterized in that: The limiting member comprises an elongated circular ring (4) movably inserted into the elongated circular groove (3), two mirror-symmetrical clamping plates (12) are movably connected inside the elongated circular ring (4), the outer edges of the first plug-in shaft (6) and the second plug-in shaft (8) are radially provided with a locking groove (18), the two locking grooves (18) face each other, a locking block (19) is movably inserted into each locking groove (18), the two locking blocks (19) are respectively fixedly connected to the two clamping plates (12), a hollow block (15) is provided between the two clamping plates (12), the hollow block (15) is fixedly connected to the middle section of the elongated circular ring (4), an adjustment mechanism is movably connected inside the hollow block (15), and the adjustment mechanism is fixedly connected to the two clamping plates (12).

4. A locking pin type automobile synchronizer according to claim 3, characterized in that: The adjustment mechanism comprises a gear (20) rotatably connected to the hollow block (15); the gear (20) is externally meshed with two radially symmetrical tooth plates (17); the tooth plates (17) are movably connected to the hollow block (15); a through slot (16) is vertically passed through each of the upper and lower surfaces of the hollow block (15); each of the through slots (16) is movably connected to a tooth plate (17); a clamping plate (12) is fixed to the end of each tooth plate (17); a first blind hole (24) is concentrically formed on the end surface of the gear (20); a push block (13) is axially telescopically connected to the first blind hole (24); the push block (13) is composed of a push rod and a rotating block fixed to each other; a through hole (14) is horizontally passed through the outside of the hollow block (15) and is connected to the hollow block; the push block (13) is movably connected to the through hole (14).

5. A locking pin type automobile synchronizer according to claim 4, characterized in that: Two radially symmetrical first limiting grooves (26) are axially formed on the inner side of the through hole (14); a limiting block (25) is movably inserted in the first limiting groove (26); the limiting block (25) is fixedly connected to the push block (13); two second limiting grooves (27) adapted to the limiting block (25) are axially formed on the inner wall of the first blind hole (24); a second blind hole (29) is concentrically formed on the inner wall of the first blind hole (24); two mirror-symmetrical first sliding grooves (28) are axially formed in the second blind hole (29); a first sliding block (31) is slidably connected in the first sliding groove (28); the first sliding block (31) is fixedly connected to a rotating shaft (32); a first spring (30) is fixed between the rotating shaft (32) and the second blind hole (29).

6. A locking pin type automobile synchronizer according to claim 4, characterized in that: Two second slide grooves (22) are vertically formed in the hollow block (15), a second slider (21) is slidably connected in each of the second slide grooves (22), a tooth plate (17) is fixed to the end of each of the second sliders (21), and a second spring (23) is commonly fixed between each of the second sliders (21) and the second slide groove (22).

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