Differential mechanism outer shell and differential mechanism

Abstract

The utility model provides a differential mechanism outer shell and a differential mechanism, and belongs to the technical field of differential mechanisms. The problem that in the prior art, a differential mechanism outer shell is poor in shaft protection effect is solved. The differential mechanism comprises an outer shell, a shell end cover and a differential mechanism assembly, the shell end cover is connected to one side of the outer shell in a sealed mode, a driving shaft hole is formed in the front end of the outer shell, a left convex body and a right convex body are formed at the left end and the right end of the outer shell, and a left driven hole and a right driven hole are formed in the left convex body and the right convex body respectively. A driving protection shell is fixedly installed at the front end of the outer shell, the driving protection shell is in a through shape and covers the outer side of the driving shaft hole, a left clamping plate and a right clamping plate are arranged on the outer side of the outer shell, and the left clamping plate is fixedly connected with the front side of the left convex body, the outer shell and the left side of the exterior of the driving protection shell. The right clamping plate is fixedly connected with the outer side of the outer shell and the right side of the outer portion of the driving protection shell, and a left driven protection shell and a right driven protection shell are fixedly connected to a left convex body and a right convex body outside a left driven shaft hole and a right driven shaft hole respectively. The utility model has the advantages of good shaft protection effect and good heat dissipation effect.

Description

Technical Field

[0001] The utility model belongs to the technical field of differentials, and relates to a differential housing and a differential. Background Art

[0002] When an automobile is four-wheel drive, in order to drive four wheels, all wheels must be connected. If the four wheels are mechanically connected together, the wheels of the automobile cannot rotate at the same speed when the automobile is driving on a curve. At this time, a differential needs to be added to adjust the rotational speed difference between the front and rear wheels.

[0003] A Chinese patent with the patent publication number CN206347088U discloses an anti-slip differential, which includes a housing, a half-shaft spline hub, a center ring, a driving ring, a left driven ring, a right driven ring, a spring seat, a left auxiliary spring and a right auxiliary spring. Two groups of half-shaft spline hubs for externally connecting the left and right wheel half-shafts are installed in the middle of the housing. Snap rings are installed at the inner ends of the two groups of half-shaft spline hubs respectively. The center ring is installed between the two snap rings. The inner side of the driving ring is slidably sleeved on the outer side of the center ring. The outer side of the driving ring is connected to the housing. The left driven ring and the right driven ring are respectively meshed and installed on both sides of the driving ring. The left driven ring and the right driven ring are respectively meshed and connected with the corresponding side half-shaft spline hub in an axially slidable manner.

[0004] In the anti-slip differential provided by this patent, a protection device for the input shaft and the output shaft is not provided in the housing. During actual use, the input shaft and the output shaft are easily damaged due to the lack of a protection device. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a differential housing and a differential for the above problems existing in the prior art.

[0006] The purpose of the utility model can be achieved by the following technical solutions: A differential housing and a differential, including a housing, a housing end cover and a differential assembly. The housing end cover is sealingly connected to one side of the housing. A driving shaft hole is provided at the front end of the housing. Left and right convex bodies are formed at the left and right ends of the housing. Left and right driven holes are respectively provided in the left and right convex bodies. A driving protection housing is fixedly installed at the front end of the housing. The driving protection housing is through-shaped and covers the outside of the driving shaft hole. Left and right clamping plates are arranged on the outside of the housing. The left clamping plate is fixedly connected to the front side of the left convex body, the housing and the left side of the outside of the driving protection housing respectively. The right clamping plate is fixedly connected to the housing and the right side of the outside of the driving protection housing respectively. Left and right driven protection housings are respectively fixedly connected to the left and right convex bodies outside the left and right driven shaft holes.

[0007] In the above-mentioned differential housing and differential, left reinforcing pieces and right reinforcing pieces are respectively arranged on the left clamping plate and the right clamping plate, and the left reinforcing piece and the right reinforcing piece are fixedly connected to the housing.

[0008] In the above-mentioned differential housing and differential, an input shaft is fixedly installed inside the active protection housing, and the input shaft passes through the active shaft hole and is meshed and connected with the differential assembly.

[0009] In the above-mentioned differential housing and differential, a left output shaft and a right output shaft are fixedly installed inside the left driven protection housing and the right driven protection housing respectively, and the left output shaft and the right output shaft pass through the left driven hole and the right driven hole respectively and are meshed and connected with the differential assembly.

[0010] In the above-mentioned differential housing and differential, a plurality of heat dissipation fins are arranged at the upper end of the housing.

[0011] In the above-mentioned differential housing and differential, a left cylindrical protection body and a right cylindrical protection body are respectively arranged at the outer ends of the left driven protection housing and the right driven protection housing.

[0012] Compared with the prior art, the utility model has the following beneficial effects: 1. Through the arrangement of the active protection housing, the protection performance of the input shaft is effectively provided, and through the left reinforcing piece and the right reinforcing piece, the support and protection of the housing for the active protection housing are further improved; 2. Through the arrangement of the left driven protection housing and the right driven protection housing, the left output shaft and the right output shaft are protected, and through the arrangement of the left cylindrical protection body and the right cylindrical protection body, the ends of the left output shaft and the right output shaft are further protected; 3. Through the structure of arranging heat dissipation fins at the upper end of the housing, the heat dissipation performance of the utility model is effectively improved. Description of the Drawings

[0013] Figure 1 is the overall structural schematic diagram of the utility model;

[0014] Figure 2 is the exploded structural schematic diagram of the utility model;

[0015] Figure 3 is the structural schematic diagram of the housing.

[0016] In the figure: 1. Outer housing; 11. Driving shaft hole; 12. Left convex body; 121. Left driven hole; 13. Right convex body; 131. Right driven hole; 14. Left clamping plate; 141. Left reinforcing piece; 15. Right clamping plate; 151. Right reinforcing piece; 16. Heat sink; 2. Housing end cover; 3. Differential assembly; 4. Active protection housing; 41. Input shaft; 5. Left driven protection housing; 51. Left output shaft; 52. Left cylindrical protection body; 6. Right driven protection housing; 61. Right output shaft; 62. Right cylindrical protection body. Detailed implementation mode

[0017] The following are specific embodiments of the present invention and in combination with the attached drawings, the technical solutions of the present invention will be further described, but the present invention is not limited to these embodiments.

[0018] As Figures 1 to 3 shown, this embodiment includes an outer housing 1, a housing end cover 2 and a differential assembly 3. The housing end cover 2 is sealingly connected to one side of the outer housing 1. The differential assembly 3 is installed inside the outer housing 1. A circular driving shaft hole 11 is provided at the front end of the outer housing 1. Left convex body 12 and right convex body 13 are integrally formed at the left and right ends of the outer housing 1. Through left driven hole 121 and right driven hole 131 are respectively provided in the left convex body 12 and the right convex body 13. The active protection housing 4 is fixedly installed at the front end of the outer housing 1. The active protection housing 4 is in a through shape and covers the outside of the driving shaft hole 11. The input shaft 41 is fixed inside the active protection housing 4. The input shaft 41 passes through the driving shaft hole 11 and is meshed with the differential assembly 3. The active protection housing 4 plays a role in protecting the input shaft 41. Left clamping plate 14 and right clamping plate 15 are arranged on the outside of the outer housing 1. The left clamping plate 14 is fixedly connected to the front side of the left convex body 12, the outer housing 1 and the outside left side of the active protection housing 4 respectively. The right clamping plate 15 is fixedly connected to the outside right side of the outer housing 1 and the active protection housing 4 respectively. The left clamping plate 14 and the right clamping plate 15 play a role in clamping and supporting the active protection housing 4.

[0019] As Figures 1 to 3 shown, the left driven protection housing 5 and the right driven protection housing 6 are respectively fixedly connected to the left convex body 12 and the right convex body 13 outside the left driven shaft hole and the right driven shaft hole. The left driven protection housing 5 and the right driven protection housing 6 are also in a through cylindrical shape. The left driven protection housing 5 and the right driven protection housing 6 cover the outside of the left driven shaft hole and the right driven shaft hole. The left output shaft 51 and the right output shaft 61 are respectively fixed inside the left driven protection housing 5 and the right driven protection housing 6. The left output shaft 51 and the right output shaft 61 respectively pass through the left driven hole 121 and the right driven hole 131 and extend into the outer housing 1 and are meshed with the differential assembly 3. The left driven protection housing 5 and the right driven protection housing 6 play a role in protecting the left output shaft 51 and the right output shaft 61.

[0020] To elaborate further, as Figures 1 to 3 shown, the upper end of the outer housing 1 is an arc surface structure, and several heat sinks 16 are provided at the upper end of the arc surface structure. The arc surface structure expands the area without affecting the space occupation, enabling more heat sinks 16 to be arranged at this place and effectively improving the heat dissipation performance.

[0021] To elaborate further, as Figures 1 to 2 shown, left cylindrical protectors 52 and right cylindrical protectors 62 are respectively provided at the outer ends of the left driven protection housing 5 and the right driven protection housing 6. The left cylindrical protector 52 and the right cylindrical protector 62 respectively serve as extensions of the left driven protection housing 5 and the right driven protection housing 6. The left cylindrical protector 52 and the right cylindrical protector 62 are both outwardly expanding cylinders, further improving the protection effect on the left output shaft 51 and the right output shaft 61.

[0022] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar methods to substitute, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0023] Although various terms are used more frequently in this article, the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitation is contrary to the spirit of the present invention.

Claims

1. A differential housing and a differential, comprising a housing (1), a housing end cover (2) and a differential assembly (3), wherein the housing end cover (2) is sealingly connected to one side of the housing (1), and is characterized in that: A front end of the outer housing (1) is provided with a driving shaft hole (11). Left and right convex bodies (12) and (13) are formed at left and right ends of the outer housing (1). Left and right driven holes (121) and (131) are respectively formed in the left and right convex bodies (12) and (13). A driving protection housing (4) is fixedly installed at the front end of the outer housing (1). The driving protection housing (4) is in a through shape and covers the outside of the driving shaft hole (11). Left and right clamping plates (14) and (15) are arranged on the outside of the outer housing (1). The left clamping plate (14) is fixedly connected to the front side of the left convex body (12), the outer side of the outer housing (1), and the left side of the outside of the driving protection housing (4). The right clamping plate (15) is fixedly connected to the right side of the outside of the outer housing (1) and the driving protection housing (4). Left and right driven protection housings (5) and (6) are respectively fixedly connected to the right convex body (13) of the left convex body (12) outside the left and right driven holes (121) and (131).

2. The differential housing and differential according to claim 1, characterized in that: Left and right reinforcing pieces (141) and (151) are respectively arranged on the left and right clamping plates (14) and (15). The left and right reinforcing pieces (141) and (151) are fixedly connected to the outer housing (1).

3. The differential housing and differential according to claim 1, characterized in that: An input shaft (41) is fixed inside the driving protection housing (4). The input shaft (41) passes through the driving shaft hole (11) and is meshed and connected to a differential assembly (3).

4. A differential housing and a differential according to claim 1, characterized in that: A left output shaft (51) and a right output shaft (61) are fixed inside the left and right driven protection housings (5) and (6). The left output shaft (51) and the right output shaft (61) respectively pass through the left and right driven holes (121) and (131) and are meshed and connected to the differential assembly (3).

5. A differential housing and a differential according to claim 1, characterized in that: A plurality of heat dissipation fins (16) are arranged at the upper end of the outer housing (1).

6. The differential case and differential according to claim 1, characterized in that: Left and right cylindrical protection bodies (52) and (62) are respectively arranged at outer end portions of the left and right driven protection housings (5) and (6).

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