CN216643009U

CN216643009U - Ring type combined differential mechanism

Info

Publication number: CN216643009U
Application number: CN202220044340.4U
Authority: CN
Inventors: 徐林兵
Original assignee: Zhejiang Yizheng Machinery Co ltd
Current assignee: Zhejiang Yizheng Machinery Co ltd
Priority date: 2022-01-07
Filing date: 2022-01-07
Publication date: 2022-05-31
Anticipated expiration: 2032-01-07

Abstract

The utility model provides a ring type combined differential, and belongs to the technical field of differentials. It has solved the poor problem of current differential mechanism connection stability. This ring type combination differential mechanism, which comprises a housin, the casing has hollow inner chamber, be provided with planetary gear assembly in the inner chamber and with planetary gear assembly meshing driven half axle gear assembly, be connected through the gear shaft between planetary gear assembly and the casing, be provided with on the surface of casing and connect ring cover and reduction gear, the go-between cover is established in reduction gear's the outside, the inboard tip of reduction gear is pegged graft on the casing, be provided with the connecting piece on the casing, the one end of connecting piece is connected on the casing, the other end of connecting piece passes reduction gear and connects on the go-between cover. The utility model has the advantages of reasonable structure and strong stability.

Description

Ring type combined differential mechanism

Technical Field

The utility model belongs to the technical field of differentials, and relates to a ring type combined differential.

Background

The automobile differential mechanism 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 an automobile turns or runs on an uneven road surface, namely ensuring that the driving wheels at 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 reduction gear is extruded by force, the reduction gear is easy to generate play, so that the assembly precision of the reduction gear is reduced, and the abrasion is aggravated.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems and provides a ring type combined differential with reasonable structure and strong stability.

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

the utility model provides a ring type combination differential, includes the casing, the casing hollow inner chamber has, the inner chamber in be provided with planetary gear assembly and with planetary gear assembly meshing driven half axle gear assembly, a serial communication port, planetary gear assembly and casing between be connected through the gear shaft, be provided with on the surface of casing and connect ring cover and reduction gear, the go-between cover establish the outside of reducing gear in, the inboard tip of reduction gear is pegged graft on the casing, the casing on be provided with the connecting piece, the one end of connecting piece is connected on the casing, the other end of connecting piece passes reduction gear and connects on the go-between cover.

In the ring-type combined differential, the reduction gear comprises a rim ring and a tooth-shaped surface distributed along the outer surface of the rim ring, a matching hole for a shell to pass through is formed in the center of the rim ring, and an insertion structure matched with the shell is arranged on the end surface of one side of the rim ring.

In the ring-type combined differential with the ring, the inserting structure comprises the clamping ring arranged on the end face of one side of the rim ring, and the position of the shell corresponding to the clamping ring is provided with the ring groove which is inwards sunken and used for inserting the clamping ring.

In the ring-type combined differential, the bottom end face of the clamping ring is flush with the edge of the matching hole.

In the ring-type combined differential, the casing is provided with connecting shaft holes for inserting two ends of the gear shaft respectively, and the connecting shaft holes extend outwards from the inner cavity to the outside of the casing to form through holes.

In the above ring type combined differential, the length of the connecting ring sleeve is longer than the aperture of the connecting shaft hole, and the connecting ring sleeve covers the connecting shaft hole when the connecting ring sleeve is fixed with the casing.

In the ring type combined differential with the ring, the casing is provided with a first mounting hole, the rim ring is provided with a second mounting hole, the connecting ring sleeve is provided with a third mounting hole, and the first mounting hole, the second mounting hole and the third mounting hole are arranged on the same horizontal line.

At foretell ring type combination differential with, the connecting piece include connecting portion and set up the spacing portion on connecting portion one side tip, the connecting portion of connecting piece pass first mounting hole, second mounting hole and third mounting hole in proper order from casing one side and realize reducing gear and casing fixed.

In the above-mentioned ring type combined differential with the ring, 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 ring type combined differential, the half-shaft gear assembly includes two half-shaft wheels, each half-shaft wheel is disposed between two planetary wheels, and two sides of the half-shaft wheel are respectively in meshing transmission with the corresponding planetary wheels.

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

1. the outer surface of the shell is provided with a connecting ring sleeve and a reduction gear, the connecting ring sleeve is arranged on the outer side of the reduction gear, the end part of the inner side of the reduction gear is inserted on the shell, one end of a connecting piece is connected on the shell, the other end of the connecting piece penetrates through the reduction gear and is connected on the connecting ring sleeve, the reduction gear is clamped between the connecting ring sleeve and the shell, the shaking is reduced through the compression of the connecting ring sleeve, and the connection stability of the reduction gear is further improved.

2. The length of the connecting ring sleeve is larger than the aperture of the connecting shaft hole, and when the connecting ring sleeve is fixed with the shell, the connecting ring sleeve covers the connecting shaft hole to play a dustproof role and prevent impurities from entering the differential mechanism from the connecting shaft hole.

3. According to the utility model, the connecting part of the connecting piece sequentially penetrates through the first mounting hole, the second mounting hole and the third mounting hole from one side of the shell to realize the fixation of the reduction gear and the shell, and the connecting piece is mounted from one side of the shell to be convenient to position.

Additional advantages, objects, and features of the utility model 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 utility model.

Drawings

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

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

In the figure, 1, a housing; 2. an inner cavity; 3. a planetary gear assembly; 4. a half shaft gear assembly; 5. a gear shaft; 6. a connecting ring sleeve; 7. a reduction gear; 8. a connecting member; 9. a rim ring; 10. a toothed surface; 11. a mating hole; 12. a plug-in structure; 13. clamping the ring; 14. a ring groove; 15. connecting the shaft hole; 16. a first mounting hole; 17. a second mounting hole; 18. a third mounting hole; 19. a connecting portion; 20. a limiting part; 21. a planet wheel; 22. a semi-axis wheel.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

As shown in fig. 1 and 2, a ring type combined differential includes a casing 1, the casing 1 has a hollow inner cavity 2, a planetary gear assembly 3 and a half axle gear assembly 4 engaged with the planetary gear assembly 3 are disposed in the inner cavity 2, the planetary gear assembly 3 is connected to the casing 1 through a gear shaft 5, a connecting ring sleeve 6 and a reduction gear 7 are disposed on an outer surface of the casing 1, the connecting ring sleeve 6 is disposed on an outer side of the reduction gear 7, an inner end of the reduction gear 7 is inserted into the casing 1, a connecting member 8 is disposed on the casing 1, one end of the connecting member 8 is connected to the casing 1, and the other end of the connecting member 8 passes through the reduction gear 7 and is connected to the connecting ring sleeve 6.

In this embodiment, a connection ring sleeve 6 and a reduction gear 7 are arranged on the outer surface of the housing 1, the connection ring sleeve 6 is arranged outside the reduction gear 7, the end part of the inner side of the reduction gear 7 is inserted into the housing 1, one end of a connecting piece 8 is connected to the housing 1, the other end of the connecting piece 8 penetrates through the reduction gear 7 and is connected to the connection ring sleeve 6, the reduction gear 7 is clamped between the connection ring sleeve 6 and the housing 1, and the connection stability of the reduction gear 7 is improved by reducing the shake through the compression of the connection ring sleeve 6.

In this embodiment, reduction gear 7 includes rim 9 and the profile of tooth face 10 that distributes along rim 9 outer surface, and the center department of rim 9 offers the mating holes 11 that supplies casing 1 to pass, is provided with on the terminal surface of rim 9 one side with casing 1 matched with grafting structure 12, and is concrete, grafting structure 12 is including setting up joint ring 13 on the terminal surface of rim 9 one side, and casing 1 and joint ring 13 corresponding position department offer inwards sunken being used for supplying joint ring 13 male ring groove 14. The rim ring 9 is matched with the ring groove 14 through the clamping ring 13, and the up-and-down movement of the rim ring 9 is limited.

In the embodiment in this market, the bottom end face of the clamping ring 13 is flush with the edge of the matching hole 11, so that the rim ring 9 is convenient to install.

In this embodiment, in order to facilitate the installation of the gear shaft 5, the housing 1 is provided with a connecting shaft hole 15 for inserting two ends of the gear shaft 5 respectively, and the connecting shaft hole 15 extends from the inner cavity 2 to the outside of the housing 1 to form a through hole.

In this embodiment, the length of the connection ring sleeve 6 is greater than the aperture of the connection shaft hole 15, when the connection ring sleeve 6 is fixed to the housing 1, the connection ring sleeve 6 covers the connection shaft hole 15, and when the connection ring sleeve 6 is fixed to the housing 1, the connection ring sleeve 6 covers the connection shaft hole 15, so that a dustproof effect is achieved, and impurities are prevented from entering the differential mechanism from the connection shaft hole 15.

In this embodiment, the casing 1 has a first mounting hole 16, the rim 9 has a second mounting hole 17, the connection ring sleeve 6 has a third mounting hole 18, and the first mounting hole 16, the second mounting hole 17 and the third mounting hole 18 are disposed on the same horizontal line, so that the connection member 8 is mounted more accurately, and the clamping stagnation is prevented from occurring during connection.

In this embodiment, the connecting member 8 includes a connecting portion 19 and a limiting portion 20 disposed on an end portion of the connecting portion 19, and the connecting portion 19 of the connecting member 8 sequentially passes through the first mounting hole 16, the second mounting hole 17 and the third mounting hole 18 from the housing 1 side to fix the reduction gear 7 to the housing 1.

In the present embodiment, the planetary gear assembly 3 includes two planetary gears 21 sleeved on the gear shaft 5, and the two planetary gears 21 are oppositely disposed on the gear shaft 5.

In the present embodiment, the side gear assembly 4 includes two half-shaft wheels 22, each half-shaft wheel 22 is disposed between two planetary wheels 21, and both sides of the half-shaft wheel 22 are in meshing transmission with the corresponding planetary wheels 21.

The working principle of the utility model is as follows: be provided with on the surface of casing 1 and connect ring cover 6 and reduction gear 7, connect ring cover 6 and set up in reduction gear 7's the outside, the tip of reduction gear 7 inboard is pegged graft on casing 1, the one end of connecting piece 8 is connected on casing 1, the other end of connecting piece 8 passes reduction gear 7 and connects on connecting ring cover 6, reduction gear 7 presss from both sides and establishes between connecting ring cover 6 and casing 1, compress tightly through connecting ring cover 6 and reduce and rock, and then promote the stability that reduction gear 7 connects.

Specifically, the rim ring 9 is matched with the ring groove 14 through the clamping ring 13, the up-and-down movement of the rim ring 9 is limited, then the connecting ring sleeve 6 is arranged on the outer side of the reduction gear 7 to press the reduction gear 7, the connecting ring sleeve 6 covers the connecting shaft hole 15 at the moment, when the connecting ring sleeve 6 is fixed with the shell 1, the connecting ring sleeve 6 covers the connecting shaft hole 15 to play a dustproof role, impurities are prevented from entering the inside of the differential mechanism from the connecting shaft hole 15, and finally the connecting part 19 of the connecting piece 8 sequentially penetrates through the first mounting hole 16, the second mounting hole 17 and the third mounting hole 18 from one side of the shell 1 to fix the reduction gear 7 and the shell 1.

The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.

Although the terms of the housing 1, the inner cavity 2, the planetary gear assembly 3, the side gear assembly 4, the gear shaft 5, the connection ring 6, the reduction gear 7, the connection member 8, the rim ring 9, the tooth-shaped surface 10, the fitting hole 11, the insertion structure 12, the snap ring 13, the ring groove 14, the connection shaft hole 15, the first mounting hole 16, the second mounting hole 17, the third mounting hole 18, the connection portion 19, the stopper portion 20, the planetary gear 21, the side gear 22, and the like are used more frequently 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 they are to be interpreted as any additional limitation which is not in accordance with the spirit of the present invention.

Claims

1. A ring type combined differential comprises a shell (1), wherein the shell (1) is provided with a hollow inner cavity (2), a planetary gear assembly (3) and a half shaft gear assembly (4) which is in meshing transmission with the planetary gear assembly (3) are arranged in the inner cavity (2), it is characterized in that the planetary gear assembly (3) is connected with the shell (1) through a gear shaft (5), a connecting ring sleeve (6) and a reduction gear (7) are arranged on the outer surface of the shell (1), the connecting ring sleeve (6) is arranged on the outer side of the reduction gear (7), the end part of the inner side of the reduction gear (7) is inserted on the shell (1), the shell (1) is provided with a connecting piece (8), one end of the connecting piece (8) is connected to the shell (1), and the other end of the connecting piece (8) penetrates through the reduction gear (7) to be connected to the connecting ring sleeve (6).

2. The ring type combined differential mechanism according to claim 1, characterized in that the reduction gear (7) comprises a rim ring (9) and toothed surfaces (10) distributed along the outer surface of the rim ring (9), a matching hole (11) for the housing (1) to pass through is formed in the center of the rim ring (9), and an insertion structure (12) matched with the housing (1) is arranged on the end surface of one side of the rim ring (9).

3. The annular combined differential mechanism according to claim 2, characterized in that the inserting structure (12) comprises a clamping ring (13) arranged on one side end face of the rim ring (9), and a ring groove (14) which is recessed inwards and used for inserting the clamping ring (13) is formed in the position of the shell (1) corresponding to the clamping ring (13).

4. The annular ring type combined differential as claimed in claim 3, wherein the bottom end face of the snap ring (13) is flush with the edge of the fitting hole (11).

5. The annular ring type combined differential mechanism as claimed in claim 1, wherein the housing (1) is provided with a connecting shaft hole (15) for inserting two ends of the gear shaft (5) respectively, and the connecting shaft hole (15) extends outwards from the inner cavity (2) to form a through hole outside the housing (1).

6. A toroidal ring-type composite differential according to claim 5, wherein the length of the coupling collar (6) is greater than the diameter of the coupling shaft hole (15), and the coupling collar (6) is fitted over the coupling shaft hole (15) when the coupling collar (6) is fixed to the casing (1).

7. The annular composite differential according to claim 2, wherein the housing (1) is provided with a first mounting hole (16), the rim (9) is provided with a second mounting hole (17), the connecting ring sleeve (6) is provided with a third mounting hole (18), and the first mounting hole (16), the second mounting hole (17) and the third mounting hole (18) are arranged on the same horizontal line.

8. The annular ring type combined differential mechanism as claimed in claim 7, wherein the connecting member (8) comprises a connecting portion (19) and a limiting portion (20) disposed at an end portion of one side of the connecting portion (19), and the connecting portion (19) of the connecting member (8) passes through the first mounting hole (16), the second mounting hole (17) and the third mounting hole (18) in sequence from one side of the housing (1) to fix the reduction gear (7) to the housing (1).

9. The toroidal ring type composite differential according to claim 1, wherein the planetary gear assembly (3) comprises two planetary wheels (21) sleeved on the gear shaft (5), and the two planetary wheels (21) are oppositely arranged on the gear shaft (5).

10. The annular ring type combined differential as claimed in claim 1, wherein the half-shaft gear assembly (4) comprises two half-shaft wheels (22), each half-shaft wheel (22) is arranged between two planetary wheels (21), and both sides of the half-shaft wheel (22) are respectively meshed with the corresponding planetary wheels (21) for transmission.