CN212899611U

CN212899611U - Automobile differential mechanism with automatic locking function

Info

Publication number: CN212899611U
Application number: CN202021548348.1U
Authority: CN
Inventors: 马景会; 吴继胜
Original assignee: Henan Guangrui Automative Parts Co ltd
Current assignee: Henan Guangrui Automative Parts Co ltd
Priority date: 2020-07-30
Filing date: 2020-07-30
Publication date: 2021-04-06
Anticipated expiration: 2030-07-30

Abstract

The utility model discloses an automobile differential mechanism with automatic locking function, which comprises a housing, wherein the lower end of the housing is provided with a connecting seat, the housing and the connecting seat are of an integral structure, the lower side of the connecting seat is provided with a base, the surfaces of the connecting seat and the base are both provided with a limiting groove, the surfaces of the connecting seat and the base are both provided with a limiting post, the limiting posts and the limiting grooves on the connecting seat and the base are both arranged in a staggered manner, and a buffer bush is arranged inside the limiting groove; the utility model discloses a spacing groove, buffer bush and the spacing post of design insert the spacing inslot through spacing post when connecting seat and base to sticis on buffer bush, then rethread connecting bolt fixes, and the vibration that produces when using can carry out certain slowing down through buffer bush's buffering and connecting bolt's spacing, thereby reduces the phenomenon that connecting seat and base junction produced fatigue and damaged.

Description

Automobile differential mechanism with automatic locking function

Technical Field

The utility model relates to an automobile differential technical field specifically is an automobile differential with automatic locking function.

Background

The automobile differential mechanism can realize a mechanism that left and right (or front and rear) driving wheels rotate at different rotating speeds. Mainly comprises a left half shaft gear, a right half shaft gear, two planet gears and a gear carrier. The function is that when the automobile turns or runs on an uneven road surface, the left wheel and the right wheel roll at different rotating speeds, namely, the pure rolling motion of the driving wheels at two sides is ensured. The differential is provided for adjusting the difference in the rotational speeds of the left and right wheels. In four-wheel drive, all the wheels must be connected to drive four wheels, if the four wheels are mechanically connected, the vehicle cannot rotate at the same speed when the vehicle runs on a curve, and in order to make the curve running rotation speed of the vehicle substantially consistent, an intermediate differential is added to adjust the rotation speed difference between the front wheel and the rear wheel.

When the existing automobile differential mechanism with an automatic locking function is used, the base and the shell are fixedly connected through bolts, the phenomenon that fatigue damage occurs at the connecting part due to vibration can occur in long-term use, and the problem that the strength is reduced and the service life is shortened is caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a car differential with automatic locking function has solved current car differential with automatic locking function and when using, carries out fixed connection through the bolt between base and the shell, can appear the phenomenon that the junction appears the tired nature damage because of the vibration when long-term use, leads to the problem that intensity decline life reduces.

The utility model provides a following technical scheme: the utility model provides an automotive differential with automatic locking function, includes the shell, the lower extreme of shell is provided with the connecting seat, shell and connecting seat formula structure as an organic whole, the downside of connecting seat is provided with the base, the spacing groove has all been seted up on the surface of connecting seat and base, the surface of connecting seat and base all is provided with spacing post, spacing post and the spacing groove on connecting seat and the base are crisscross the setting all, the inside of spacing groove is provided with the buffering bush, spacing post inserts the spacing inslot and sticiss on the buffering bush, the connecting bolt has closed on connecting seat and the base soon, and connecting bolt passes connecting seat, base, spacing post, buffering bush and spacing groove.

Preferably, the shapes of the limiting column and the limiting groove are both trapezoidal, and the size of the limiting column is excessively matched with the limiting groove.

Preferably, the shell comprises an outer protective shell and an inner wear-resistant shell, the inner wear-resistant shell is arranged on the inner side of the outer protective shell, a supporting rib plate is arranged between the outer protective shell and the inner wear-resistant shell, two sides of the supporting rib plate are fixedly connected with the outer protective shell and the inner wear-resistant shell respectively, and sound absorbing cotton is filled between the outer protective shell and the inner wear-resistant shell.

Preferably, the inside of shell is provided with the clutch disc, the upper surface of base is provided with the separation and reunion seat, the separation and reunion seat inserts in the clutch disc, the inboard of separation and reunion seat is provided with the separation and reunion axle sleeve.

Preferably, the upper end of the clutch disc is provided with a shaft sleeve, the surface of the clutch seat is provided with a column hole, the column hole is provided with a clutch column, and the outer side of the limiting column is provided with a clutch wheel.

Preferably, the clutch shaft sleeve, the clutch disc and the clutch seat are in a locking state.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a spacing groove, buffer bush and the spacing post of design insert the spacing inslot through spacing post when connecting seat and base to sticis on buffer bush, then rethread connecting bolt fixes, and the vibration that produces when using can carry out certain slowing down through buffer bush's buffering and connecting bolt's spacing, thereby reduces the phenomenon that connecting seat and base junction produced fatigue and damaged.

2. The utility model discloses a support gusset through the design with inhale the sound cotton, support then give sound insulation through inhaling the sound cotton through the support gusset in outer protecting crust and the interior wear-resisting shell when using differential mechanism, reduce the outside transmission of noise that produces in the shell to it is better to make the shell separate the audio effect when using.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

fig. 3 is a schematic view of the structure of the housing of the present invention.

In the figure: 1. a housing; 2. a connecting seat; 3. a base; 4. a connecting bolt; 5. a limiting column; 6. a cushion bushing; 7. a limiting groove; 8. a clutch plate; 9. a clutch seat; 10. a clutch shaft sleeve; 11. an outer protective shell; 12. supporting the rib plate; 13. sound-absorbing cotton; 14. an inner wear shell.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, an automobile differential mechanism with an automatic locking function comprises a housing 1, a connecting seat 2 is arranged at the lower end of the housing 1, the housing 1 and the connecting seat 2 are of an integral structure, a base 3 is arranged at the lower side of the connecting seat 2, limiting grooves 7 are formed in the surfaces of the connecting seat 2 and the base 3, limiting posts 5 are arranged on the surfaces of the connecting seat 2 and the base 3, the limiting posts 5 and the limiting grooves 7 on the connecting seat 2 and the base 3 are arranged in a staggered mode, a buffer bush 6 is arranged inside the limiting groove 7, the limiting posts 5 are inserted into the limiting grooves 7 and tightly pressed on the buffer bush 6, the limiting posts 5 and the buffer bush 6 are conveniently and stably connected with the limiting grooves 7, a connecting bolt 4 is screwed on the connecting seat 2 and the base 3, and the connecting bolt 4 penetrates through the connecting seat 2, the base 3, the limiting posts 5, the buffer bush 6 and the limiting grooves 7, the base 3, the limiting column 5, the buffer bush 6 and the limiting groove 7 are fixed.

Referring to fig. 1, the shape of the limiting post 5 and the limiting groove 7 are trapezoidal, and the size of the limiting post 5 is excessively matched with the limiting groove 7, so that the limiting post 5 can be conveniently inserted into the limiting groove 7, and the limiting post 5 is tightly pressed on the buffer bush 6.

Referring to fig. 3, the outer shell 1 includes an outer protective shell 11 and an inner wear-resistant shell 14, the inner wear-resistant shell 14 is disposed on the inner side of the outer protective shell 11, a supporting rib plate 12 is disposed between the outer protective shell 11 and the inner wear-resistant shell 14, two sides of the supporting rib plate 12 are respectively fixedly connected to the outer protective shell 11 and the inner wear-resistant shell 14, sound-absorbing cotton 13 is filled between the outer protective shell 11 and the inner wear-resistant shell 14, the outer shell 1 is more stable in use by being supported by the supporting rib plates 12 of the outer protective shell 11 and the inner wear-resistant shell 14, and noise generated in the outer shell 1 is reduced from spreading outwards by sound insulation of the sound-absorbing cotton 13.

Referring to fig. 2, a clutch disc 8 is arranged inside the housing 1, a clutch seat 9 is arranged on the upper surface of the base 3, the clutch seat 9 is inserted into the clutch disc 8, a clutch shaft sleeve 10 is arranged on the inner side of the clutch seat 9, and the use effect of the differential is better through the clutch disc 8, the clutch seat 9 and the clutch shaft sleeve 10.

Referring to fig. 2, a shaft sleeve is arranged at the upper end of the clutch disc 8, a column hole is formed in the surface of the clutch base 9, a clutch column is arranged in the column hole, and a clutch wheel is arranged on the outer side of the limiting column 5, so that locking and unlocking can be conveniently performed.

Referring to fig. 2, the clutch sleeve 10, the clutch disc 8 and the clutch seat 9 are in a locked state, so that the automobile differential is conveniently and automatically locked.

The working principle is as follows: when the automobile is assembled, the limiting columns 5 and the limiting grooves 7 on the connecting seat 2 and the base 3 are mutually clamped, the limiting columns 5 are tightly pressed on the buffer bushes 6 in the limiting grooves 7, then the connecting bolts 4 penetrate through the connecting seat 2 and the base 3 to be fixed, meanwhile, the connecting bolts 4 penetrate through the limiting columns 5, the buffer bushes 6 and the limiting grooves 7, certain buffering can be performed through the elastic force of the buffer bushes 6 when vibration is generated, so that the collision among the connecting seat 2, the base 3 and the connecting bolts 4 is reduced, the phenomenon of fatigue damage at the connecting part of the connecting seat 2 and the base 3 is reduced, the clutch shaft sleeve 10, the clutch disc 8 and the clutch seat 9 are in a locking state in an initial state, when the automobile normally runs, the linear speeds of wheels on two sides of the automobile are the same, the clutch columns are clamped between the clutch shaft sleeve 10 and the clutch disc 8, and the; when the automobile turns, the linear speeds of the wheels at the two sides of the automobile are changed, so that the rotating speeds of the clutch shaft sleeve 10 and the clutch disc 8 are different, the clutch shaft sleeve 10 or the clutch disc 8 at the side with the higher linear speed can push the clutch column to the clutch disc 8 or the clutch shaft sleeve 10, the two ends of the clutch column are respectively positioned at the convex part and the concave part of the inner wall of the clutch wheel or the clutch disc 8, the distance from the convex part or the concave part of the clutch wheel to the corresponding concave part or the convex part of the inner wall of the clutch disc 8 is matched with the length of the clutch column, at the moment, the clutch column releases the locking state, the clutch shaft sleeve 10 and the clutch disc 8 are in the separation state, and the wheels at the two sides can realize turning through different linear velocities, the noise generated when the differential operates can be reduced from spreading outward by the blocking of the sound-absorbing cotton 13 between the outer protective shell 11 and the inner wear-resistant shell 14, thereby reducing the noise generated when the differential operates.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An automobile differential mechanism with an automatic locking function comprises a shell (1), and is characterized in that: the lower extreme of shell (1) is provided with connecting seat (2), shell (1) and connecting seat (2) formula structure as an organic whole, the downside of connecting seat (2) is provided with base (3), spacing groove (7) have all been seted up on the surface of connecting seat (2) and base (3), the surface of connecting seat (2) and base (3) all is provided with spacing post (5), spacing post (5) and spacing groove (7) on connecting seat (2) and base (3) all set up crisscross, the inside of spacing groove (7) is provided with buffer bush (6), spacing post (5) insert in spacing groove (7) and sticiss on buffer bush (6), connecting bolt (4) have been closed on connecting seat (2) and base (3) soon, and connecting bolt (4) pass connecting seat (2), base (3), spacing post (5), Buffer bush (6) and spacing groove (7).

2. The differential for an automobile having an automatic locking function according to claim 1, characterized in that: the shapes of the limiting column (5) and the limiting groove (7) are both trapezoidal, and the size of the limiting column (5) is in excessive fit with the limiting groove (7).

3. The differential for an automobile having an automatic locking function according to claim 1, characterized in that: the shell (1) comprises an outer protective shell (11) and an inner wear-resistant shell (14), the inner wear-resistant shell (14) is arranged on the inner side of the outer protective shell (11), a supporting rib plate (12) is arranged between the outer protective shell (11) and the inner wear-resistant shell (14), two sides of the supporting rib plate (12) are fixedly connected with the outer protective shell (11) and the inner wear-resistant shell (14) respectively, and sound absorbing cotton (13) is filled between the outer protective shell (11) and the inner wear-resistant shell (14).

4. The differential for an automobile having an automatic locking function according to claim 1, characterized in that: the inside of shell (1) is provided with clutch disc (8), the upper surface of base (3) is provided with separation and reunion seat (9), separation and reunion seat (9) insert in clutch disc (8), the inboard of separation and reunion seat (9) is provided with separation and reunion axle sleeve (10).

5. The differential for an automobile having an automatic locking function according to claim 4, characterized in that: the upper end of the clutch disc (8) is provided with a shaft sleeve, the surface of the clutch seat (9) is provided with a column hole, a clutch column is arranged in the column hole, and a clutch wheel is arranged on the outer side of the limiting column (5).

6. The differential for an automobile having an automatic locking function according to claim 4, characterized in that: the clutch shaft sleeve (10), the clutch disc (8) and the clutch seat (9) are in a locking state.