CN217381499U

CN217381499U - Automobile differential mechanism

Info

Publication number: CN217381499U
Application number: CN202220080682.1U
Authority: CN
Inventors: 徐林兵
Original assignee: Zhejiang Yizheng Machinery Co ltd
Current assignee: Zhejiang Yizheng Machinery Co ltd
Priority date: 2022-01-10
Filing date: 2022-01-10
Publication date: 2022-09-06
Anticipated expiration: 2032-01-10

Abstract

The utility model provides an automobile differential belongs to differential technical field. It has solved the poor problem of current differential mechanism connection stability. This automobile differential mechanism, including shell body and reduction gear, hollow inner chamber has in the shell body, be provided with planetary gear assembly and planetary gear assembly meshing driven half axle gear assembly in the inner chamber, be provided with radial bellied connection platform on the shell body, connect the bench and seted up a plurality of perforation, reduction gear is provided with on connecting the one side tip of platform towards and can pass fenestrate grafting piece, the grafting piece is worn out to be provided with on fenestrate this side tip and is used for the mounting that reduction gear links firmly mutually with the shell body. The utility model has the advantages of reasonable structure and strong stability.

Description

Automobile differential mechanism

Technical Field

The utility model belongs to the technical field of differential mechanism, a automobile differential mechanism is related to.

Background

The differential mechanism of the automobile can enable the left driving wheel and the right driving wheel to rotate at different rotating speeds, and has the function of enabling the left wheel and the right wheel to roll at different rotating speeds when the automobile turns or runs on an uneven road surface, namely ensuring that the driving wheels on two sides do pure rolling motion. The differential is provided for adjusting the difference in the rotational speed between 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.

The existing differential mainly comprises a left half axle gear, a right half axle gear, two planet gears and a gear carrier, wherein the planet gears are connected into an outer shell through gear shafts, a reduction gear is directly connected into the shell of the differential through bolts, and the existing differential has the main problems that: when the speed reduction gear is stressed and is in transmission with other components, the radial force applied to the speed reduction gear causes the connection between the speed reduction gear and the outer shell to be loosened, so that the assembly precision of the speed reduction gear and the outer shell is reduced, and the abrasion is aggravated.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned problem, provide a rational in infrastructure, stable strong automotive differential.

In order to achieve the above purpose, the utility model adopts the following technical proposal:

the utility model provides an automobile differential mechanism, includes shell body and reduction gear, its characterized in that, the shell body in have hollow inner chamber, the inner chamber in be provided with planetary gear assembly and planetary gear assembly meshing driven half axle gear assembly, the shell body on be provided with radial bellied connection platform, the connection bench on seted up a plurality of perforation, reduction gear is provided with on the side end of connection platform towards and can passes fenestrate grafting piece, the grafting piece is worn out to be provided with on fenestrate this side end and is used for reduction gear and the shell body to link firmly the mounting mutually.

In the automobile differential mechanism, the plurality of through holes are circumferentially and uniformly distributed on the connecting platform.

In the above-described automobile differential, a lower surface of each of the perforations is flush with an outer surface of the outer case.

In the above automobile differential, the reduction gear includes a rim ring and a toothed surface distributed along an outer surface of the rim ring, and the insertion blocks are distributed on the rim ring.

In the above-described automobile differential, an abutting step is formed between the rim and the inner surface of the toothed surface, a side surface of the connecting table abuts against the rim, and an upper surface of the connecting table abuts against the inner surface of the toothed surface.

In the above-described automobile differential, the side surface of the insert block is flush with the side surface of the outer case.

In the automobile differential, the fixing piece penetrates through the inserting block from top to bottom to enter the outer shell and is fixedly connected with the outer shell.

In the above automotive differential, the fixing member is a bolt.

In the above differential mechanism, the planetary gear assembly includes two planetary gears sleeved on the gear shaft, and the two planetary gears are oppositely disposed on the gear shaft.

In the above-mentioned automobile differential, the half-axle gear assembly includes two half-axle wheels, each half-axle wheel is disposed between two planetary wheels, and two sides of the half-axle wheel are respectively engaged with the corresponding planetary wheels for transmission.

Compared with the prior art, the utility model has the advantages of:

1. the utility model discloses a reduction gear passes through the grafting piece and links firmly with the shell body through the mounting after connecting the platform mutually, not only plays the effect of location, still makes connection between them more stable.

2. The utility model discloses connect the side surface butt of platform and circle on the rim, connect the upper surface butt of platform on the internal surface of tooth shape face, promote the adaptation performance of connecting platform and reduction gear.

3. The utility model discloses fenestrate lower surface flushes with the surface of shell body mutually, makes things convenient for reduction gear's grafting piece to insert fast.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic structural view of the reduction gear of the present invention.

In the figure, 1, an outer shell; 2. a reduction gear; 3. an inner cavity; 4. a planetary gear assembly; 5. a half shaft gear assembly; 6. a connecting table; 7. perforating; 8. an insertion block; 9. a fixing member; 10. a rim ring; 11. a toothed surface; 12. abutting against the step; 13. a planet wheel; 14. a gear shaft; 15. a semi-axis wheel.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1 and 2, an automobile differential mechanism comprises an outer shell 1 and a reduction gear 2, a hollow inner cavity 3 is arranged in the outer shell 1, a half-axle gear assembly 5 in which a planetary gear assembly 4 and a planetary gear assembly 4 are meshed for transmission is arranged in the inner cavity 3, a connecting table 6 which is radially convex is arranged on the outer shell 1, a plurality of through holes 7 are formed in the connecting table 6, an inserting block 8 which can penetrate through the through holes 7 is arranged on the end part of one side of the reduction gear 2, which faces the connecting table 6, and a fixing piece 9 which is used for fixedly connecting the reduction gear 2 and the outer shell 1 is arranged on the end part of the inserting block 8, which penetrates through the through holes 7.

In this embodiment, be provided with radial bellied connection platform 6 on the shell body 1, be provided with perforation 7 on connecting platform 6, reduction gear 2 is pegged graft in connecting platform 6 through grafting piece 8, and grafting piece 8 keeps away from the tip of reduction gear 2 and link firmly on shell body 1 through mounting 9 after wearing out from connecting platform 6, grafting piece 8 not only plays the effect of location with the installation of being connected platform 6, still makes connection between them more stable.

In this embodiment, in order to make the connection force between the two more uniform, a plurality of through holes 7 are circumferentially and uniformly distributed on the connection platform 6.

Preferably, the lower surface of each perforation 7 is flush with the outer surface of the outer casing 1, facilitating the quick insertion of the plug-in block 8 of the reduction gear 2.

In this embodiment, the reduction gear 2 includes a rim 10 and a toothed surface 11 distributed along an outer surface of the rim 10, and the insertion block 8 is distributed on the rim 10, meanwhile, a butting step 12 is formed between the rim 10 and an inner surface of the toothed surface 11, a side surface of the connecting table 6 butts against the rim 10, an upper surface of the connecting table 6 butts against the inner surface of the toothed surface 11, and thus the adaptability between the connecting table 6 and the reduction gear 2 is improved.

In the present embodiment, the side surface of the plug block 8 is flush with the side surface of the outer case 1.

In this embodiment, the fixing member 9 passes through the insertion block 8 from top to bottom and enters the outer casing 1 to be fixedly connected with the outer casing 1. The direction of connection of plug-in block 8 and connection platform 6 is mutually perpendicular with the direction of connection of mounting 9 and shell body 1 for reduction gear 2 all obtains fixedly in axial and footpath when being connected with shell body 1, has guaranteed the stability and the intensity of connecting.

In the present embodiment, the fixing member 9 is a bolt.

In the present embodiment, the planetary gear assembly 4 includes two planetary gears 13 sleeved on the gear shaft 14, and the two planetary gears 13 are oppositely disposed on the gear shaft 14.

In the present embodiment, the side gear assembly 5 includes two half-shaft wheels 15, each half-shaft wheel 15 is disposed between two planetary wheels 13, and both sides of the half-shaft wheel 15 are in meshing transmission with the corresponding planetary wheels 13.

The utility model discloses a theory of operation does: be provided with radial bellied connection platform 6 on the shell body 1, be provided with perforation 7 on connecting platform 6, reduction gear 2 is pegged graft in connecting platform 6 through grafting piece 8, and grafting piece 8 is kept away from the tip of reduction gear 2 and is linked firmly on shell body 1 through mounting 9 after wearing out from connecting platform 6, and grafting piece 8 not only plays the effect of location with the installation of connecting platform 6, still makes connection between them more stable.

Specifically, the lower surface of every perforation 7 flushes with the surface of shell body 1 mutually, make things convenient for reduction gear 2's grafting piece 8 to insert fast, grafting piece 8 with be connected 6 cooperations of platform after complete, the side surface butt of connecting platform 6 is on rim ring 10, the upper surface butt of connecting platform 6 is on the internal surface of tooth face 11, promote the adaptation performance of connecting platform 6 and reduction gear 2, then 9 top-down of mounting passes grafting piece 8 and gets into to link firmly with shell body 1 in the shell body 1 mutually, grafting piece 8 is perpendicular with the direction of connection of connecting platform 6 and mounting 9 and shell body 1, make reduction gear 2 when being connected with shell body 1, all obtain fixedly in axial and footpath, the stability and the intensity of connecting have been guaranteed.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the terms outer casing 1, reduction gear 2, inner chamber 3, planetary gear assembly 4, half-axle gear assembly 5, connecting table 6, perforations 7, plug-in block 8, fixing element 9, rim ring 10, toothed surface 11, abutment step 12, planet wheel 13, gear shaft 14, half-axle wheel 15, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention and should not be interpreted as imposing any additional limitations that are contrary to the spirit of the present invention.

Claims

1. The utility model provides an automobile differential mechanism, includes shell body (1) and reducing gear (2), its characterized in that, shell body (1) in have hollow inner chamber (3), inner chamber (3) in be provided with planetary gear subassembly (4) and planetary gear subassembly (4) meshing driven half axle gear subassembly (5), shell body (1) on be provided with radial bellied connection platform (6), connection platform (6) on seted up a plurality of perforation (7), reducing gear (2) are provided with plug-in block (8) that can pass perforation (7) towards connecting on one side tip of platform (6), plug-in block (8) are worn out to be provided with on this side tip of perforation (7) and are used for reducing gear (2) and shell body (1) fixed mounting (9) that link firmly mutually.

2. The differential of an automobile as claimed in claim 1, characterized in that a plurality of said perforations (7) are circumferentially and uniformly distributed on the connecting platform (6).

3. The automotive differential of claim 1, characterized in that the lower surface of each perforation (7) is flush with the outer surface of the outer casing (1).

4. An automobile differential according to claim 1, characterised in that the reduction gear (2) comprises a rim (10) and a toothed surface (11) distributed along the outer surface of the rim (10), the insert blocks (8) being distributed on the rim (10).

5. An automobile differential according to claim 4, characterized in that an abutment step (12) is formed between the rim (10) and the inner surface of the toothed surface (11), the side surface of the connecting table (6) abuts against the rim (10), and the upper surface of the connecting table (6) abuts against the inner surface of the toothed surface (11).

6. Differential for vehicles according to claim 1, characterized in that the lateral surface of the plug-in block (8) is flush with the lateral surface of the outer casing (1).

7. The differential mechanism of the automobile as claimed in claim 1, characterized in that the fixing piece (9) penetrates through the insertion block (8) from top to bottom into the outer housing (1) to be fixedly connected with the outer housing (1).

8. The automotive differential of claim 1, characterized in that the fixing members (9) are bolts.

9. The automotive differential according to claim 1, characterized in that said planetary gear assembly (4) comprises two planetary wheels (13) mounted on a gear shaft (14), said two planetary wheels (13) being disposed opposite to said gear shaft (14).

10. The automotive differential of claim 9, characterized in that the axle gear assembly (5) comprises two axle wheels (15), each axle wheel (15) is arranged between two planetary wheels (13), and both sides of each axle wheel (15) are respectively in mesh transmission with the corresponding planetary wheels (13).