Differential mechanism shell

Abstract

The differential mechanism shell comprises a first shell body and a second shell body, a first flange plate is integrally arranged on the first shell body, a plurality of open type flange holes A are evenly formed in the circumference of the first flange plate, the circle center angle corresponding to the open cambered surface of each flange hole A is 30-60 degrees, and the circle center angle corresponding to the open cambered surface of each flange hole A is 30-60 degrees. A second flange plate is integrally arranged on the second shell, a plurality of open type flange holes B are correspondingly formed in the circumference of the second flange plate, and the circle center angle corresponding to the open cambered surface of each flange hole B is 30-60 degrees. The flange holes A and the flange holes B are respectively formed in the circumferences of the first flange plate and the second flange plate in an opening manner, and the circle center angle corresponding to the opening cambered surface is 30-60 degrees, so that the weight of the flange plates can be effectively reduced on the basis of ensuring the connection strength, and the weight of the whole differential shell is further reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of automobiles, in particular to a differential housing. Background Art

[0002] The differential housing (abbreviated as "differential housing") is a key component of the differential. It plays the role of bearing, connecting and transmitting power. It is a key component of the torque bearing of various automobile chassis. The design and manufacturing quality of its products directly affect the performance and service life of the automobile. With the rapid development of the automobile industry in my country, the concept of energy conservation and emission reduction is becoming more and more popular, and automobile lightweighting is becoming more and more important. The lightweighting of automobile parts has also become an indispensable link in the development of automobiles. However, the existing differential housing has major technical defects. In order to meet its mechanical strength, it uses more materials, has thick walls and heavy weight, which cannot meet the current demand for lightweight automobiles. Utility Model Content

[0003] In view of this, an object of the present invention is to provide a lightweight differential housing to solve the above-mentioned problems.

[0004] In order to achieve the above objectives, the utility model provides the following technical solutions:

[0005] The utility model provides a differential housing, which comprises a first housing and a second housing, wherein the first housing and the second housing are respectively provided with a differential mounting cavity and an axial hole, wherein the axial hole is communicated with the central position of the differential mounting cavity; a first flange is integrally provided on the outer circumferential surface of the differential mounting cavity of the first housing, a plurality of open flange holes A are evenly provided on the circumference of the first flange, and the center angle corresponding to the opening arc surface of the flange hole A is 30-60 degrees; a second flange is integrally provided on the outer circumferential surface of the differential mounting cavity of the second housing, a plurality of open flange holes B are correspondingly provided on the circumference of the second flange, and the center angle corresponding to the opening arc surface of the flange hole B is 30-60 degrees.

[0006] The utility model sets the flange hole A and the flange hole B in an open manner on the circumference of the first flange and the second flange respectively, and the center angle corresponding to the opening arc surface is set to 30-60 degrees. On the basis of ensuring the connection strength, the weight of the flange can be effectively reduced, thereby reducing the weight of the entire differential housing.

[0007] Furthermore, the thickness of the first flange and the second flange gradually increases and changes continuously from the inner circumferential surface to the outer circumferential surface. This arrangement can effectively ensure the mechanical strength of the connection.

[0008] Furthermore, the first housing and the second housing are symmetrically provided with hollow holes. The first housing and the second housing are symmetrically provided with hollow holes, which can further reduce the weight of the differential housing while ensuring the strength of the differential housing, and can also effectively ensure the dynamic balance of the differential housing during rotation.

[0009] Furthermore, the second housing is provided with an oil hole near the inner circumference of the second flange, and the oil hole extends from the outer circumference to the inner circumference along the outer circumference of the second housing. By providing the oil hole, various differential components in the differential housing can be lubricated.

[0010] Furthermore, the first shell and the second shell are both integrally formed, so that the mechanical properties of the product have strong impact resistance, no deformation and no fracture.

[0011] Furthermore, the materials of the first shell and the second shell are both 20CrMnTi alloy. 20CrMnTi alloy has good mechanical properties, hardenability, high wear resistance and good processing performance, which is convenient for processing and can effectively ensure the strength and performance of the product.

[0012] Beneficial effects: The differential housing of the utility model realizes the lightweight of the differential housing while ensuring the mechanical strength. The utility model sets the flange hole A and the flange hole B in an open manner on the circumference of the first flange and the second flange respectively, and the center angle corresponding to the arc surface of the opening is set to 30-60 degrees. On the basis of ensuring the connection strength, the weight of the flange can be effectively reduced. The utility model sets the holes symmetrically on the first housing and the second housing, which can further reduce the weight and effectively ensure the dynamic balance during the rotation process. The utility model strengthens the first flange and the second flange, which can effectively ensure the mechanical strength of the connection. The first housing and the second housing of the utility model are both integrally formed, which can effectively ensure their mechanical properties, so that they have strong impact resistance, no deformation and fracture phenomenon. The materials of the first housing and the second housing are both 20CrMnTi, which is convenient for processing and can effectively ensure the strength and performance of the product. The utility model is provided with oil at the inner circumference of the second housing near the second flange, which can lubricate the various components of the differential in the differential housing, effectively ensuring the performance and service life of the differential. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the differential housing of the utility model;

[0014] Figure 2 It is a top view of the differential housing of the utility model.

[0015] Description of the reference numerals: first housing 1 , second housing 2 , first flange 3 , flange hole A4 , second flange 5 , flange hole B6 , hollow hole 7 , oil hole 8 , shaft hole 9 , differential mounting cavity 10 . DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] like Figure 1 to Figure 2 As shown, the utility model discloses a differential housing, which includes a first housing 1 and a second housing 2, wherein the first housing 1 and the second housing 2 are respectively provided with a differential mounting cavity 10 and an axial hole 9, wherein the axial hole 9 is communicated with the central position of the differential mounting cavity 10; a first flange 3 is integrally provided on the outer circumferential surface of the differential mounting cavity of the first housing 1, and a plurality of open flange holes A4 are evenly provided on the circumference of the first flange 3, and the center angle corresponding to the opening arc surface of the flange hole A4 is 30-60 degrees; a second flange 5 is integrally provided on the outer circumferential surface of the differential mounting cavity of the second housing 2, and a plurality of open flange holes B6 are correspondingly provided on the circumference of the second flange 5, and the center angle corresponding to the opening arc surface of the flange hole B6 is 30-60 degrees.

[0018] The utility model sets the flange hole A4 and the flange hole B6 in an open manner on the circumference of the first flange plate 1 and the second flange plate 2 respectively, and the center angle of the opening arc surface corresponding to the opening arc surface is set to 30-60 degrees. On the basis of ensuring the connection strength, the weight of the flange plate can be effectively reduced, thereby reducing the weight of the entire differential housing.

[0019] In some embodiments, the thickness of the first flange 3 and the second flange 5 gradually increases and changes continuously from the inner circumference to the outer circumference, so as to effectively ensure the mechanical strength of the connection.

[0020] In some embodiments, the first housing 1 and the second housing 2 are further symmetrically provided with hollow holes 7. The hollow holes 7 are symmetrically provided on the first housing 1 and the second housing 2, which can further reduce the weight of the differential housing while ensuring the strength of the differential housing, and at the same time, can effectively ensure the dynamic balance of the differential housing during rotation.

[0021] In some embodiments, the second housing 2 is further provided with an oil hole 8 at an inner circumferential position close to the second flange 5, and the oil hole 8 extends from the outer circumferential surface to the inner circumferential surface along the outer circumference of the second housing 2. By providing the oil hole 8, various differential components in the differential housing can be lubricated.

[0022] In some embodiments, the first shell 1 and the second shell 2 are integrally formed, so that the mechanical properties of the product have strong impact resistance, no deformation and no fracture.

[0023] In some embodiments, the materials of the first shell 1 and the second shell 2 are both 20CrMnTi alloy. 20CrMnTi alloy has good mechanical properties, hardenability, high wear resistance and good processing performance, which is convenient for processing and can effectively ensure the strength and performance of the product.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A differential housing, characterized in that: The differential housing comprises a first housing and a second housing, wherein the first housing and the second housing are respectively provided with a differential mounting cavity and an axial hole, wherein the axial hole is communicated with the central position of the differential mounting cavity; a first flange is integrally provided on the outer circumferential surface of the differential mounting cavity of the first housing, a plurality of open flange holes A are evenly provided on the circumference of the first flange, and the center angle corresponding to the opening arc surface of the flange hole A is 30-60 degrees; a second flange is integrally provided on the outer circumferential surface of the differential mounting cavity of the second housing, a plurality of open flange holes B are correspondingly provided on the circumference of the second flange, and the center angle corresponding to the opening arc surface of the flange hole B is 30-60 degrees.

2. The differential case according to claim 1, characterized in that: The thickness of the first flange and the second flange gradually increases and changes continuously from the inner circumferential surface to the outer circumferential surface.

3. The differential case according to claim 1, characterized in that: The first shell and the second shell are also symmetrically provided with hollow holes.

4. The differential case according to claim 1, characterized in that: The second shell is also provided with an oil hole at a position close to the inner circumference of the second flange, and the oil hole extends from the outer circumferential surface to the inner circumferential surface along the outer circumferential direction of the second shell.

5. The differential case according to claim 1, characterized in that: The first shell and the second shell are both integrally formed.

6. The differential case according to claim 1, characterized in that: The materials of the first shell and the second shell are both 20CrMnTi alloy.

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