Assembly type differential spider

Abstract

The utility model discloses an assembly type differential spider which comprises a shaft center ring, four spider arms and an outer enclosure, the four spider arms are distributed on the side face of the shaft center ring in a scattering shape at equal intervals and integrally formed with the shaft center ring, and the outer enclosure is arranged at one end of each spider arm in a nested mode and fixedly connected with the spider arms through inner hexagon screws. According to the assembly type differential spider, split type design is adopted, the position, where a gear is installed, of the body is of an independent outer surrounding structure, after the outer surrounding structure is compounded with the spider arm, the outer portion of the outer surrounding structure is used for making contact with the gear, the outer surrounding structure is machined independently through high-strength materials and a special technology, and therefore the abrasion resistance of the outer surrounding structure is improved; and meanwhile, the outer enclosure can be independently disassembled and replaced in the later period, the situation that the whole cross shaft is damaged after abrasion is avoided, and the follow-up maintenance time and cost are reduced.

Description

Technical Field

[0001] The utility model relates to the field of differentials, in particular to an assembled differential cross shaft. Background Art

[0002] The differential is a key component in the vehicle transmission system, commonly used in cars, trucks and some other motor vehicles. Its function is to adjust the speed difference between two or more wheels of the vehicle to provide better vehicle stability and handling performance when turning or on uneven roads. The differential allows the wheels of the vehicle to rotate at different speeds while maintaining the transmission of driving force. The cross shaft is an important component in the differential transmission system. It is usually used to connect the differential and the wheels to transmit power and torque.

[0003] The cross shaft can withstand various forces and torques during vehicle driving, and has sufficient flexibility and strength, but it still has some problems: the planetary gears and half-shaft gears are installed on the cross shaft, and they will have high-speed friction with the contact parts of the cross shaft during operation. Therefore, this part of the cross shaft is severely worn, and the subsequent maintenance is more difficult, and the overall replacement will greatly increase the cost of use; therefore, in view of the above situation, it is urgent to develop an assembled differential cross shaft to overcome the shortcomings in current practical applications and meet current needs. Utility Model Content

[0004] The purpose of the utility model is to provide an assembled differential cross shaft to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The assembled differential cross shaft includes a shaft ring, a cross arm and an outer enclosure. Four cross arms are evenly distributed on the side of the shaft ring in a scattered manner and are formed integrally with the shaft ring. The outer enclosure is nested at one end of the cross arm and is fixedly connected to the cross arm by a hexagon socket screw.

[0007] A groove is provided on the side of the cross arm, a horizontal positioning strip is provided in the middle of the groove, the positioning strip is integrally formed with the cross arm, a countersunk groove is provided on the top and bottom of the cross arm, and an internal threaded hole B is provided at the end of the cross arm;

[0008] The top and bottom of the outer enclosure are provided with platforms, and the inner wall of the outer enclosure is provided with horizontal positioning grooves.

[0009] As a further solution of the utility model: an internal threaded hole A is opened in the middle position of the sink groove, and a countersunk hole is opened in the middle position of the platform. The countersunk hole and the internal threaded hole A are vertically aligned one by one. The countersunk hole and the internal threaded hole A are aligned with each other and then connected with a hexagon socket screw.

[0010] As a further solution of the utility model: the positioning groove matches the positioning strip, and the matching of the two can improve the connection stability between the outer enclosure and the cross arm, and avoid deviation caused by displacement.

[0011] As a further solution of the utility model: the outer enclosure matches the groove and the sink.

[0012] As a further solution of the utility model: the maximum outer diameter of the outer enclosure is equal to the maximum outer diameter of the cross arm, and the two maintain the same outer diameter to facilitate the subsequent assembly of gears.

[0013] Beneficial effects: This type of assembled differential cross shaft adopts a split design, and an independent outer enclosure structure is used for the location where the gear is installed on the main body. After the outer enclosure is compounded with the cross arm, the outside of the outer enclosure is used to contact the gear. High-strength materials and special processes are used to process the outer enclosure separately to improve its wear resistance, avoiding excessively high production costs due to overall special processing and high-strength material application. At the same time, the outer enclosure can be disassembled and replaced separately at a later stage to avoid damage to the entire cross shaft due to wear, thereby reducing subsequent maintenance time and costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front structural schematic diagram of the utility model.

[0015] Figure 2 It is a schematic diagram of the cross arm structure of the utility model.

[0016] Figure 3 It is a schematic diagram of the outer enclosure structure of the utility model.

[0017] In the figure: 1, axis ring; 2, cross arm; 21, groove; 22, positioning strip; 23, countersunk groove; 231, internal threaded hole A; 24, internal threaded hole B; 3, outer enclosure; 31, platform; 311, countersunk hole; 32, positioning groove. DETAILED DESCRIPTION Example

[0018] See also Figures 1 to 3 In the embodiment of the utility model, the assembled differential cross shaft includes a shaft ring 1, a cross arm 2 and an outer enclosure 3. Four cross arms 2 are evenly distributed on the side of the shaft ring 1 in a scattered manner and are integrally formed with the shaft ring 1. The outer enclosure 3 is nested at one end of the cross arm 2 and is fixedly connected to the cross arm 2 by a hexagon socket screw.

[0019] A groove 21 is provided on the side of the cross arm 2, a horizontal positioning bar 22 is provided in the middle of the groove 21, the positioning bar 22 is integrally formed with the cross arm 2, a sink groove 23 is provided on the top and bottom of the cross arm 2, and an internal threaded hole B24 is provided at the end of the cross arm 2;

[0020] Platforms 31 are provided at the top and bottom of the outer enclosure 3 , and a horizontal positioning groove 32 is provided on the inner wall of the outer enclosure 3 .

[0021] As a further solution of the utility model: an internal threaded hole A231 is opened in the middle position of the sink 23, and a countersunk hole 311 is opened in the middle position of the platform 31. The countersunk hole 311 is vertically aligned with the internal threaded hole A231. The countersunk hole 311 and the internal threaded hole A231 are aligned with each other and can be connected with an internal hexagon screw.

[0022] As a further solution of the utility model: the positioning groove 32 matches the positioning strip 22, and the matching between the two can improve the connection stability between the outer enclosure 3 and the cross arm 2, and avoid deviation caused by displacement.

[0023] As a further solution of the utility model: the outer enclosure 3 matches the groove 21 and the sink 23 .

[0024] As a further solution of the utility model: the maximum outer diameter of the outer enclosure 3 is equal to the maximum outer diameter of the cross arm 2, and the two maintain the same outer diameter to facilitate the subsequent assembly of gears.

[0025] The working principle of the utility model is: when the assembled differential cross shaft is in use, the outer enclosure 3 is nested outside the groove 21 of the cross arm 2, and the hexagon socket screw is used to pass through the countersunk hole 311 and connect with the internal threaded hole A231, so as to fix the outer enclosure 3 and the cross arm 2 together, and finally the gear is nested outside the outer enclosure 3. After using for a long time, wear will occur between the gear and the outer enclosure 3. When the wear is more serious, the hexagon socket screw needs to be removed and the worn outer enclosure 3 needs to be replaced separately.

[0026] 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. Assembled differential cross shaft, characterized by: It comprises an axis ring (1), a cross arm (2) and an outer enclosure (3), wherein four cross arms (2) are distributed equidistantly on the side of the axis ring (1) in a scattered manner and are formed integrally with the axis ring (1), and the outer enclosure (3) is nested at one end of the cross arm (2) and is fixedly connected to the cross arm (2) by means of a hexagon socket screw; A groove (21) is provided on the side of the cross arm (2), a horizontal positioning strip (22) is provided in the middle of the groove (21), the positioning strip (22) and the cross arm (2) are integrally formed, a sink groove (23) is provided on the top and bottom of the cross arm (2), and an internal threaded hole B (24) is provided at the end of the cross arm (2); The top and bottom of the outer enclosure (3) are provided with platforms (31), and the inner wall of the outer enclosure (3) is provided with a horizontal positioning groove (32).

2. The assembled differential cross shaft according to claim 1, characterized in that: An internal threaded hole A (231) is provided in the middle of the sink groove (23), and a countersunk hole (311) is provided in the middle of the platform (31). The countersunk hole (311) is vertically aligned with the internal threaded hole A (231).

3. The assembled differential cross shaft according to claim 1, characterized in that: The positioning groove (32) matches the positioning strip (22).

4. The assembled differential cross shaft according to claim 1, characterized in that: The outer enclosure (3) matches the groove (21) and the sink (23).

5. The assembled differential cross shaft according to claim 1, characterized in that: The maximum outer diameter of the outer enclosure (3) is equal to the maximum outer diameter of the cross arm (2).

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