Anti-fatigue flange type constant-speed driving shaft assembly

Abstract

The utility model discloses an anti-fatigue flange type constant-speed driving shaft assembly. The driving shaft assembly mainly solves the problem that a traditional driving shaft assembly transmits torque only through a spline on a half shaft, and the spline may be fractured in high-strength operation to cause loss of power of the assembly. The hub is characterized in that the circumferential outer wall of the boss is provided with a spline used for being connected with a differential mechanism; the flange plate is arranged on the circumferential outer wall of the shell, and a fastener used for being connected with a differential mechanism is installed on the flange plate. According to the anti-fatigue flange type constant-speed driving shaft assembly, in the using process, the flange and the spline are in butt joint with a differential mechanism, the spline is used in cooperation with an internal spline of the differential mechanism, the transmission torque of output power of the differential mechanism is greatly improved, and the phenomenon that the assembly loses power due to spline breakage in high-strength operation is prevented; the power input by the differential mechanism is effectively transmitted to the driving shaft assembly, so that the anti-fatigue use performance of the assembly is improved, the risk of failure rate is reduced, and the anti-fatigue performance of the driving shaft assembly is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of automobile parts, concretely relates to a fatigue-resistant flange type constant velocity drive shaft assembly. BACKGROUND

[0002] With the continuous development of the all-terrain vehicle industry, people have higher and higher requirements for the performance of all-terrain vehicles. In order to make the output shaft and the input shaft in the same plane rotate at the same speed, a constant velocity universal joint drive shaft assembly with double universal joint transmission is often used in the transmission system of an all-terrain vehicle. The constant velocity universal joint drive shaft assembly is a power transmission device between the engine and the drive wheels of an all-terrain vehicle, which is used to provide the required traction and vehicle speed of the all-terrain vehicle under various working conditions, and to coordinate the changes of the two and have sufficient change range, so as to ensure that the left and right drive wheels of the all-terrain vehicle can adapt to the differential requirements. Therefore, the performance and quality of the constant velocity universal joint drive shaft assembly directly affect the overall performance and driving safety of the all-terrain vehicle. In the prior art, the structure of the constant velocity universal joint drive shaft assembly is generally as follows: one end is a fixed ball cage universal joint, the other end is a movable joint telescopic ball cage universal joint, and the middle is an intermediate shaft connecting the fixed joint and the movable joint. Among them, the fixed joint is mainly composed of a bell-shaped shell, a retainer, a steel ball, a star-shaped sleeve and other accessories, the movable joint is composed of a shell, a retainer, a steel ball, a star-shaped sleeve and other accessories, the universal joint is connected with the differential through a half shaft, and only transmits torque through the spline on the half shaft, which may cause the spline to break and the assembly to lose power in high-strength operation. SUMMARY

[0003] In order to overcome the deficiencies of the background art, the utility model provides a fatigue-resistant flange type constant velocity drive shaft assembly, which mainly solves the problem that the traditional drive shaft assembly only transmits torque through the spline on the half shaft, which may cause the spline to break and the assembly to lose power in high-strength operation.

[0004] The technical scheme of the utility model is,

[0005] A fatigue-resistant flange type constant velocity drive shaft assembly, comprising an intermediate shaft, one end of the intermediate shaft is connected with a first universal joint, the other end of the intermediate shaft is connected with a second universal joint, the first universal joint comprises a shell, and further comprising

[0006] A boss is arranged on the axial outer wall of the shell, and the circumferential outer wall of the boss is provided with a spline for connecting with a differential;

[0007] A flange plate is arranged on the circumferential outer wall of the shell, and the flange plate is provided with a fastener for connecting with the differential.

[0008] The fastener is a bolt.

[0009] Five fasteners are arranged on the flange plate.

[0010] The boss is coaxially arranged with the shell.

[0011] The dust cover is connected with the intermediate shaft through a clamp.

[0012] The dust cover is connected with the intermediate shaft through a clamp.

[0013] The dust cover is connected with the intermediate shaft through a clamp.

[0014] The cross section of the flange plate is a star surface.

[0015] The dust cover is connected with the intermediate shaft through a clamp.

[0016] The utility model discloses an anti-fatigue flange type constant velocity drive shaft assembly, and the flange and the spline are double and docked with the differential mechanism in the use process, the spline is used in cooperation with the spline in the differential mechanism, the transmission torque of the differential mechanism output power is greatly improved, the phenomenon that the assembly loses power and the like caused by spline fracture in high strength operation is prevented, the power inputted by the differential mechanism is effectively transmitted to the drive shaft assembly, the use performance of the anti-fatigue of the assembly is improved, the risk of failure rate is reduced, the performance of the anti-fatigue of the drive shaft assembly is greatly improved DRAWINGS

[0017] Figure 1 It is a sectional view schematic diagram of the first embodiment of the utility model.

[0018] Figure 2 It is a local schematic diagram of the first embodiment of the utility model.

[0019] Figure 3 It is Figure 1 It is an enlarged schematic diagram of the A of the middle.

[0020] Figure 4 It is a schematic diagram of the first embodiment of the utility model installed on the differential mechanism. CONCRETE IMPLEMENTING METHOD

[0021] Further illustrated is the utility model with reference to the drawings, an anti-fatigue flange type constant velocity drive shaft assembly, including intermediate shaft 1, one end of intermediate shaft is connected with first universal joint 2, the other end is connected with second universal joint 3, first universal joint includes shell 21, still including boss 22, be equipped with in the axial outer wall of shell, the circumferential outer wall of boss is equipped with for being connected with differential with spline 221;Flange plate 23, be equipped with in the circumferential outer wall of shell, the fastener 231 for being connected with differential 9 is installed on flange plate.In the process of using, flange and spline double with differential docking, flange is connected by 5 bolts and is locked and is used in cooperation, spline is used in cooperation with the spline in differential simultaneously, greatly improves the transmission torque of differential output power, prevents the phenomenon such as the loss of power of assembly caused by spline fracture in high-strength operation.This drive shaft assembly passes through the spline and the flange bolt double power transmission effect, effectively transmits the power inputted by differential to drive shaft assembly, improves the anti-fatigue performance of assembly, reduces the risk of failure rate, greatly improves the anti-fatigue performance of drive shaft assembly, eliminates the shaking generated in the operation of drive shaft assembly, the overall drive shaft assembly transmission power is strong, the structure design is compact and reasonable, power transmission is uniform, efficiency is high, carries stably, noise is low, performance is strong and the like characteristics.Effectively improve the service life of drive shaft assembly, from this make the sand beach car industry has breakthrough progress, safe and reliable, longer service life.

[0022] In the embodiment, as shown in the figure, the fastener is a bolt.

[0023] In the embodiment, as shown in the figure, five fasteners are installed on the flange plate. The installation is more stable.

[0024] In the embodiment, as shown in the figure, the boss is coaxially arranged with the shell.

[0025] In the embodiment, as shown in the figure, it further includes a dust cover 6, one end of the dust cover is connected with the intermediate shaft, and one end of the dust cover is connected with the shell. Foreign matter can be prevented from entering the shell, increasing the service life.

[0026] In the embodiment, as shown in the figure, the dust cover is connected with the intermediate shaft through a clamp. The installation is more convenient.

[0027] In the embodiment, as shown in the figure, the dust cover is connected with the shell through a clamp. The installation is more convenient.

[0028] In the embodiment, as shown in the figure, the cross section of the flange plate is a star-shaped surface. The edges and corners of the planetary surface can be rounded. With such a structure, the overall mass is lighter.

[0029] In the embodiment, the dust cover is provided with a convex ring 61 at the part in contact with the shell, the shell is provided with an annular groove 25, and the convex ring is arranged in the groove.

[0030] In the description of the present application, it should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0031] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0032] The embodiments described with reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application. The embodiments should not be considered as a limitation of the present application, but any improvement made on the basis of the spirit of the present application should be within the scope of protection of the present application.

Claims

1. A fatigue-resistant flange-type constant velocity drive shaft assembly, comprising an intermediate shaft (1), one end of which is connected to a first universal joint (2), and the other end of which is connected to a second universal joint (3), wherein the first universal joint includes a housing (21), characterized in that: Also includes A boss (22) is provided on the axial outer wall of the housing, and the circumferential outer wall of the boss is provided with a spline (221) for connecting with the differential. A flange (23) is provided on the circumferential outer wall of the housing, and fasteners (231) for connection with the differential (9) are installed on the flange.

2. The fatigue-resistant flange-type constant velocity drive shaft assembly according to claim 1, characterized in that: The fastener is a bolt.

3. The fatigue-resistant flange-type constant velocity drive shaft assembly according to claim 1, characterized in that: The flange is equipped with five fasteners.

4. The fatigue-resistant flange-type constant velocity drive shaft assembly according to claim 1, characterized in that: The boss is coaxially arranged with the housing.

5. The fatigue-resistant flange-type constant velocity drive shaft assembly according to claim 1, characterized in that: It also includes a dust cover (6), one end of which is connected to the intermediate shaft, and the other end of which is connected to the housing.

6. The fatigue-resistant flange-type constant velocity drive shaft assembly according to claim 5, characterized in that: The dust cover is connected to the intermediate shaft by a clamp.

7. A fatigue-resistant flange-type constant velocity drive shaft assembly according to claim 5, characterized in that: The dust cover is connected to the housing by clamps.

8. The fatigue-resistant flange-type constant velocity drive shaft assembly according to claim 1, characterized in that: The flange has a star-shaped cross-section.

9. A fatigue-resistant flange-type constant velocity drive shaft assembly according to claim 5, characterized in that: The dust cover has a protruding ring (61) in contact with the housing, and the outer wall of the housing has an annular groove (25), with the protruding ring located in the groove.

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