Self-locking differential mechanism

Abstract

The utility model provides a self-locking differential mechanism which comprises a differential mechanism shell. The differential mechanism end cover is fixedly connected to one end of the differential mechanism shell; the positioning assemblies are connected to the side wall of the end, close to the differential shell, of the differential end cover in a circular array mode. And the limiting assemblies are connected to the side wall, close to the differential end cover, of the differential shell in a circular array mode, and the limiting assemblies and the positioning assemblies are correspondingly arranged. The positioning assemblies on the side wall of the differential mechanism shell are matched with the limiting assemblies on the side wall of the differential mechanism end cover, so that the positions of the differential mechanism shell and the differential mechanism end cover can be limited, and the positions, needing to be installed, of the differential mechanism shell and the differential mechanism end cover are aligned; therefore, the influence on the assembly of the differential shell and the differential end cover when other tools are used for positioning can be avoided, and the assembly efficiency can be effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of vehicle differential technology, and in particular to a self-locking differential. Background Technology

[0002] A car differential is a mechanism that allows the left and right (or front and rear) drive wheels to rotate at different speeds. It mainly consists of left and right half-shaft gears, two planetary gears, and a gear carrier. Its function is to ensure that the left and right wheels rotate at different speeds when the car is turning or driving on uneven surfaces, thus guaranteeing pure rolling motion for both drive wheels. The differential is designed to adjust the speed difference between the left and right wheels. In four-wheel drive, all four wheels must be connected to drive them. If the four wheels are mechanically connected, the car will not rotate at the same speed when driving on curves. To ensure that the rotational speed is approximately consistent when the car is turning, a center differential is needed to adjust the speed difference between the front and rear wheels.

[0003] In the existing technology, when assembling and connecting the differential housing and the differential end cover, it is necessary to align the through holes of the differential housing and the differential end cover. However, during the alignment process, the only way to achieve the limit is to pass through the through holes on the differential housing and the differential end cover with a column. The column will affect the subsequent assembly, resulting in low assembly efficiency and inconvenience. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide a self-locking differential to overcome the shortcomings of the prior art.

[0005] This utility model provides a self-locking differential, comprising:

[0006] Differential housing;

[0007] A differential end cap is fixedly attached to one end of the differential housing;

[0008] Several positioning components are connected in a circular array to the side wall of the differential end cover near the differential housing.

[0009] A plurality of limiting components are connected in a circular array to the side wall of the differential housing near the differential end cover, and the plurality of limiting components are correspondingly arranged with the plurality of positioning components;

[0010] The positioning component and the limiting component cooperate with each other to position the differential housing on the differential end cover.

[0011] Compared with the prior art, the beneficial effects of this utility model are: by cooperating with several positioning components on the side wall of the differential housing and several limiting components on the side wall of the differential end cover, the positions of the differential housing and the differential end cover can be limited, so as to align the positions to be installed on the differential housing and the differential end cover, thereby avoiding the impact of using other tools for positioning on the assembly of the differential housing and the differential end cover, and thus effectively improving the assembly efficiency.

[0012] Furthermore, each of the aforementioned positioning components includes a positioning post and two positioning pins. The positioning post is fixed to the side wall of the differential end cover near the differential housing, and the two positioning pins are symmetrically connected to the two side walls of the positioning post.

[0013] Furthermore, each of the aforementioned limiting components includes two limiting plates, and the positioning component is disposed between the two limiting plates.

[0014] Furthermore, the side wall of the differential housing is provided with grooves corresponding to a plurality of the limiting components, and each groove is provided with two sets of the limiting plates, and the two sets of limiting plates are spaced apart.

[0015] Furthermore, the limiting plate has an arc-shaped structure, and the openings of the two limiting plates in the same groove are arranged opposite to each other.

[0016] Furthermore, the differential end cap is fitted onto the differential housing at one end near the differential housing.

[0017] Furthermore, the outer wall of the differential housing is uniformly provided with several through holes.

[0018] Furthermore, the differential housing is provided with a plurality of shaft holes evenly distributed on it. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the self-locking differential in an embodiment of the present utility model;

[0020] Figure 2 This is an explosion illustration of the self-locking differential in an embodiment of the present invention. Figure 1 ;

[0021] Figure 3 for Figure 2 Enlarged view of a portion of point A in the middle;

[0022] Figure 4 This is an explosion illustration of the self-locking differential in an embodiment of the present invention. Figure 2 ;

[0023] Figure 5 for Figure 4 Enlarged view of a section at point B in the middle;

[0024] Figure 6 This is a three-dimensional structural diagram of the differential housing of the self-locking differential in an embodiment of the present utility model;

[0025] Figure 7 for Figure 6 Enlarged view of a section at point C.

[0026] Explanation of key component symbols:

[0027] 10. Differential housing; 11. Groove; 12. Through hole; 13. Shaft hole;

[0028] 20. Differential end cap;

[0029] 30. Positioning component; 31. Positioning post; 32. Positioning pin;

[0030] 40. Limiting component; 41. Limiting plate.

[0031] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this utility model. Detailed Implementation

[0032] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Several embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this utility model will be more thorough and complete.

[0033] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0035] Please see Figures 1 to 7 The image shows a self-locking differential in an embodiment of the present invention, including a differential housing 10, a differential end cap 20, a positioning component 30, and a limiting component 40.

[0036] The differential end cap 20 is fixed to one end of the differential housing 10. Several sets of positioning components 30 and limiting components 40 are provided. In this embodiment, four sets of positioning components 30 and limiting components 40 are provided. The four sets of positioning components 30 are connected in a circular array to the side wall of the differential end cap 20 near the differential housing 10. The four sets of limiting components 40 are connected in a circular array to the side wall of the differential housing 10 near the differential end cap 20. Several limiting components 30 and several positioning components 40 are correspondingly arranged. The positioning components 40 and the limiting components 30 cooperate with each other to position the differential housing 10 on the differential end cap 20.

[0037] It should be noted that, in this embodiment, the differential end cap 20 is fitted onto the differential housing 10 at one end. That is, the diameter of one end of the differential housing 10 is smaller than that of one end of the differential end cap 20, so that the differential end cap 20 can be easily fitted onto the differential housing 10 to complete the initial positioning.

[0038] In addition, a plurality of through holes 12 are uniformly provided on the outer wall of the differential housing 10. A plurality of shaft holes 13 are uniformly provided on the differential housing 10.

[0039] Specifically, in this embodiment, each of the four sets of positioning components 30 includes a positioning post 31 and two positioning pins 32. The positioning post 31 is fixed to the side wall of the differential end cover 20 near the differential housing 10. The two positioning pins 32 are symmetrically connected to the two side walls of the positioning post 31. Each of the four sets of limiting components 40 includes two limiting plates 41. The positioning component 30 is disposed between the two limiting plates 41.

[0040] It is understandable that each set of positioning pins 31 corresponds to two limiting plates 41. The positioning pins 31 are located between the two limiting plates 41. The positioning pins 32 at both ends of the positioning pins 31 can prevent the positioning pins 31 and the positioning pins 32 from rotating. Thus, the differential housing 10 and the differential end cover 20 can be stably positioned through the cooperation between the positioning pins 31, the positioning pins 32 and the limiting plates 41, which facilitates the subsequent assembly between the differential housing 10 and the differential end cover 20.

[0041] Furthermore, the side wall of the differential housing 10 is provided with a groove 11 corresponding to a plurality of the limiting components 40. Each groove 11 is provided with two sets of limiting plates 41, and the two sets of limiting plates 41 are spaced apart. The limiting plates 41 have an arc-shaped structure, and the openings of the two limiting plates 41 in the same groove 11 are arranged opposite to each other.

[0042] Understandably, the two arc-shaped limiting plates 41 are adapted to the positioning post 31, allowing the positioning post 31 to be positioned between the two limiting plates 41. Furthermore, due to the spacing between the two limiting plates 41, the positioning pins 32 on both sides of the positioning post 31 can be engaged by the two limiting plates 41, thus enabling the differential housing 10 to be positioned on the differential end cover 20. It is worth noting that when the positioning post 31 is engaged between the two limiting plates 41, initial positioning can be achieved through the groove 11, allowing the positioning post 31 to be easily inserted between the two limiting plates 41.

[0043] In summary, the self-locking differential in the above embodiments of this utility model, through the cooperation of several positioning components 30 on the side wall of the differential housing 10 and several limiting components 40 on the side wall of the differential end cover 20, can limit the position of the differential housing 10 and the differential end cover 20, so as to align the positions to be installed on the differential housing 10 and the differential end cover 20, thereby avoiding the impact of positioning with other tools on the assembly of the differential housing 10 and the differential end cover 20, and thus effectively improving the assembly efficiency.

[0044] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0045] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A self-locking differential, characterized in that, include: Differential housing; A differential end cap is fixedly attached to one end of the differential housing; Several positioning components are connected in a circular array to the side wall of the differential end cover near the differential housing. A plurality of limiting components are connected in a circular array to the side wall of the differential housing near the differential end cover, and the plurality of limiting components are correspondingly arranged with the plurality of positioning components; The positioning component and the limiting component cooperate with each other to position the differential housing on the differential end cover.

2. The self-locking differential according to claim 1, characterized in that, Each of the aforementioned positioning components includes a positioning post and two positioning pins. The positioning post is fixed to the side wall of the differential end cover near the differential housing, and the two positioning pins are symmetrically connected to the two side walls of the positioning post.

3. The self-locking differential according to claim 1, characterized in that, Each of the aforementioned limiting components includes two limiting plates, and the positioning component is disposed between the two limiting plates.

4. The self-locking differential according to claim 3, characterized in that, The differential housing has grooves on its side wall corresponding to a plurality of the limiting components. Each groove has two sets of limiting plates, and the two sets of limiting plates are spaced apart.

5. The self-locking differential according to claim 4, characterized in that, The limiting plate has an arc-shaped structure, and the openings of the two limiting plates in the same groove are arranged opposite each other.

6. The self-locking differential according to claim 1, characterized in that, The differential end cap is fitted onto the differential housing at one end near the differential housing.

7. The self-locking differential according to claim 1, characterized in that, The outer wall of the differential housing is provided with several through holes evenly distributed.

8. The self-locking differential according to claim 1, characterized in that, The differential housing is provided with several shaft holes evenly distributed on it.

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