Top cover assembly

Abstract

The utility model provides a top cover assembly which comprises a gear shifting shaft. A gear selecting arm assembly is installed on the outer side wall of one end of the gear shifting shaft, a gear shifting arm is installed on one side of the gear selecting arm assembly, a top cover body is installed on the outer side wall of the gear shifting shaft, a spring seat is installed in the top cover body, a spring body is installed in the spring seat, and a clamping ring is installed on the outer side wall of the gear shifting shaft. A gasket is installed on one side of the spring seat, an elastic check ring for a hole is installed on one side of the gasket, an oil seal is installed at one end of the top cover body, a first steel backing composite lining is installed between the inner side wall of the top cover body and the outer side wall of the gear shifting shaft, and a gear selecting and shifting block is installed on the outer side wall of the gear shifting shaft. Through the arrangement of the spring seat, the spring and the clamping ring, the use of a positioning pin is avoided, and a positioning groove does not need to be formed in the gear shifting shaft, so that the strength of the gear shifting shaft is improved, and meanwhile, the positioning precision and the use stability are improved.

Description

Technical Field

[0001] The utility model relates to a top cover, in particular to a top cover assembly, belonging to the technical field of automobile manufacturing. Background Art

[0002] With the development of domestic commercial vehicle transmissions, the driver's operating comfort is increasingly valued by the market; therefore, automobile and parts manufacturers are paying more and more attention to the comfort of manual transmission selection and shifting.

[0003] The Chinese patent publication (publication number: CN203809656U) discloses a top cover assembly of an automobile transmission, including a top cover housing, a shift shaft, a shift dial head, a gear selection shaft, a shift dial head, a spring, and a fastening bolt. The spring is sleeved on the shift shaft, and the shift dial head is sleeved on the shift shaft through a spline and fixed to the top cover with a fastening screw. The characteristics are: a bolt hole is provided at one end of the top cover housing, a groove is provided on the shift shaft, one end of the fastening bolt is stuck in the shift shaft groove, and is threadedly fastened with the top cover housing; the top cover assembly of the utility model is convenient to disassemble because the shift shaft is fastened with bolts, and the bolts can be directly loosened during the disassembly process, which is not easy to cause the top cover housing to break, thereby improving the disassembly and assembly efficiency of the top cover assembly, reducing the breakage and failure of the top cover housing caused by disassembly and assembly, and improving resource utilization; the utility model uses a positioning pin to fix the main shaft, which reduces the strength of the main shaft, and at the same time, the positioning accuracy and the stability of use are poor. For this reason, a top cover assembly is proposed. Utility Model Content

[0004] In view of this, the utility model provides a top cover assembly to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial choice.

[0005] The technical solution of the utility model is implemented as follows: a top cover assembly includes a shift shaft;

[0006] A shift arm assembly is installed on the outer wall of one end of the shift shaft, a shift arm is installed on one side of the shift arm assembly, a top cover body is installed on the outer wall of the shift shaft, a spring seat is installed inside the top cover body, a spring body is installed inside the spring seat, a retaining ring is installed on the outer wall of the shift shaft, a gasket is installed on one side of the spring seat, and an elastic retaining ring for a hole is installed on one side of the gasket.

[0007] Further preferably, an oil seal is installed at one end of the top cover body, a first steel-backed composite bushing is installed between the inner wall of the top cover body and the outer wall of the shift shaft, a shift selector head is installed on the outer wall of the shift shaft, and an interlocking plate is installed on the outer wall of the shift selector head.

[0008] Further preferably, a reversing arm shaft is installed on one side of the top cover body, a reversing arm body is installed on one end of the reversing arm shaft, a second steel-backed composite bushing is installed between the inside of the reversing arm body and the outer side wall of the reversing arm shaft, and one side of the reversing arm body is installed inside the interlocking plate.

[0009] Further preferably, a corrugated elastic pin is installed on the outer side wall of the shift shaft, and a spring pin is installed inside the corrugated elastic pin.

[0010] Further preferably, a cotter pin is provided on one side of the shift arm, and a bushing body is installed on the inner side wall of the shift arm.

[0011] Further preferably, a friction-reducing pad is installed between the outer side wall of the reversing arm shaft and the top of the reversing arm body, and a locking nut is installed on the outer side wall of the reversing arm shaft.

[0012] The embodiment of the utility model has the following advantages due to the adoption of the above technical solution:

[0013] The utility model avoids the use of positioning pins by arranging the spring seat, the spring and the clamping ring, so that there is no need to provide positioning grooves on the shift shaft, thereby improving the strength of the shift shaft, and at the same time improving the positioning accuracy and the stability of use.

[0014] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the utility model will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 This is a cross-sectional structural diagram of the main body of the utility model;

[0017] Figure 2 For the utility model Figure 1 A magnified view of the structure at center;

[0018] Figure 3 For the utility model Figure 1 A magnified view of the structure at B in the middle;

[0019] Figure 4 For the utility model Figure 1 Enlarged view of the structure at point C in the middle.

[0020] Figure numerals: 1. shift arm; 2. selector arm assembly; 3. shift shaft; 4. top cover body; 5. spring seat; 6. spring body; 7. selector shift head; 8. interlocking plate; 9. oil seal; 10. first steel-backed composite bushing; 11. retaining ring; 12. gasket; 13. elastic retaining ring for hole; 14. corrugated elastic pin; 15. spring pin; 16. bushing body; 17. cotter pin; 18. reversing arm body; 19. reversing arm shaft; 20. second steel-backed composite bushing; 21. friction-reducing pad; 22. locking nut. DETAILED DESCRIPTION

[0021] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0022] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0023] like Figure 1-4 As shown, the embodiment of the utility model provides a top cover assembly, including a shift shaft 3;

[0024] The outer wall of one end of the shift shaft 3 is installed with a shift arm assembly 2, a shift arm 1 is installed on one side of the shift arm assembly 2, a top cover body 4 is installed on the outer wall of the shift shaft 3, a spring seat 5 is installed inside the top cover body 4, a spring body 6 is installed inside the spring seat 5, a retaining ring 11 is installed on the outer wall of the shift shaft 3, a gasket 12 is installed on one side of the spring seat 5, and a hole elastic retaining ring 13 is installed on one side of the gasket 12.

[0025] In one embodiment, an oil seal 9 is installed at one end of the top cover body 4, a first steel-backed composite bushing 10 is installed between the inner wall of the top cover body 4 and the outer wall of the shift shaft 3, a selector shift head 7 is installed on the outer wall of the shift shaft 3, and an interlocking plate 8 is installed on the outer wall of the selector shift head 7. Through the setting of the top cover body 4, the oil seal 9 is fixed. Through the setting of the first steel-backed composite bushing 10, the wear, vibration and noise between the top cover body 4 and the shift shaft 3 can be reduced, and the anti-corrosion effect is achieved, thereby avoiding the increase of the gap between the shift shaft 3 and the hole. Through the setting of the shift shaft 3, the selector shift head 7 is fixed. Through the setting of the selector shift head 7, the interlocking plate 8 is fixed. Through the setting of the interlocking plate 8, damage to the device caused by misoperation can be prevented.

[0026] In one embodiment, a reversing arm shaft 19 is installed on one side of the top cover body 4, a reversing arm body 18 is installed on one end of the reversing arm shaft 19, a second steel-backed composite bushing 20 is installed between the inside of the reversing arm body 18 and the outer side wall of the reversing arm shaft 19, and one side of the reversing arm body 18 is installed inside the interlocking plate 8. Through the setting of the top cover body 4, the reversing arm shaft 19 is fixed, and through the setting of the reversing arm shaft 19, the reversing arm body 18 is fixed. Through the setting of the second steel-backed composite bushing 20, the wear, vibration and noise between the reversing arm body 18 and the reversing arm shaft 19 can be reduced, and an anti-corrosion effect is achieved.

[0027] In one embodiment, a corrugated elastic pin 14 is installed on the outer wall of the shift shaft 3, and a spring pin 15 is installed inside the corrugated elastic pin 14. Through the setting of the shift shaft 3, the corrugated elastic pin 14 is fixed. The corrugated elastic pin 14 has the function of firm connection, reducing vibration and impact, thereby extending the service life of the equipment.

[0028] In one embodiment, a cotter pin 17 is provided on one side of the shift arm 1, and a bushing body 16 is installed on the inner wall of the shift arm 1. The setting of the shift arm 1 fixes the cotter pin 17 and the bushing body 16. The setting of the bushing body 16 can reduce the wear, vibration and noise of the equipment, absorb the vibration transmitted from the vehicle, and thus increase the service life of the equipment.

[0029] In one embodiment, a friction-reducing pad 21 is installed between the outer wall of the reversing arm shaft 19 and the top of the reversing arm body 18, and a locking nut 22 is installed on the outer wall of the reversing arm shaft 19. Through the setting of the friction-reducing pad 21, wear and noise between the reversing arm shaft 19 and the reversing arm body 18 are reduced, leakage of equipment and vehicles is prevented, normal operation is ensured, and work efficiency is improved.

[0030] When the utility model is working: the gear selection action is mainly completed by the swing of the gear selection arm assembly 2, which drives the gear shift shaft 3 and the gear selection and shift dial head 7 to move axially; the setting of the bushing body 16 can reduce the wear, vibration and noise of the equipment, absorb the vibration transmitted from the vehicle, and thus increase the service life of the equipment; the gear selection return is mainly completed by the spring body 6 pushing the spring seat 5, and then pushing the gear selection and shift dial head 7; the gear shifting action is mainly completed by the swing of the gear shift arm 1, which drives the gear shift shaft 3 and the gear selection and shift dial head 7 to rotate, and the reversing action is mainly completed by the swing of the reversing arm body 18, which drives the reversing arm shaft 19 and the gear selection and shift dial head 7 to rotate. The setting of the second steel-backed composite bushing 20 can reduce the wear, vibration and noise between the reversing arm body 18 and the reversing arm shaft 19, and has an anti-corrosion effect. The setting of the friction-reducing pad 21 reduces the wear and noise between the reversing arm shaft 19 and the reversing arm body 18, prevents leakage of equipment and vehicles, ensures normal operation, and thus improves work efficiency.

[0031] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A top cover assembly, characterized in that: including a shift shaft (3); The outer wall of one end of the shift shaft (3) is installed with a shift arm assembly (2), one side of the shift arm assembly (2) is installed with a shift arm (1), the outer wall of the shift shaft (3) is installed with a top cover body (4), the interior of the top cover body (4) is installed with a spring seat (5), the interior of the spring seat (5) is installed with a spring body (6), the outer wall of the shift shaft (3) is installed with a retaining ring (11), one side of the spring seat (5) is installed with a gasket (12), and one side of the gasket (12) is installed with a hole elastic retaining ring (13).

2. A top cover assembly according to claim 1, characterized in that: An oil seal (9) is installed at one end of the top cover body (4), a first steel-backed composite bushing (10) is installed between the inner wall of the top cover body (4) and the outer wall of the shift shaft (3), a shift selector head (7) is installed on the outer wall of the shift shaft (3), and an interlocking plate (8) is installed on the outer wall of the shift selector head (7).

3. A top cover assembly according to claim 2, characterized in that: A reversing arm shaft (19) is installed on one side of the top cover body (4), a reversing arm body (18) is installed on one end of the reversing arm shaft (19), a second steel-backed composite bushing (20) is installed between the interior of the reversing arm body (18) and the outer side wall of the reversing arm shaft (19), and one side of the reversing arm body (18) is installed inside the interlocking plate (8).

4. A top cover assembly according to claim 2, characterized in that: A corrugated elastic pin (14) is installed on the outer side wall of the shift shaft (3), and a spring pin (15) is installed inside the corrugated elastic pin (14).

5. The top cover assembly according to claim 1, characterized in that: A cotter pin (17) is provided on one side of the shift arm (1), and a bushing body (16) is installed on the inner side wall of the shift arm (1).

6. A top cover assembly according to claim 3, characterized in that: A friction-reducing pad (21) is installed between the outer wall of the reversing arm shaft (19) and the top of the reversing arm body (18), and a locking nut (22) is installed on the outer wall of the reversing arm shaft (19).

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