CN209776535U

CN209776535U - Novel automobile steering transmission shaft

Info

Publication number: CN209776535U
Application number: CN201920409087.6U
Authority: CN
Inventors: 张永明; 杜宇; 刘安策; 孙雷
Original assignee: Jiangxi Changhe Automobile Co Ltd
Current assignee: Jiangxi Changhe Automobile Co Ltd
Priority date: 2019-03-28
Filing date: 2019-03-28
Publication date: 2019-12-13
Anticipated expiration: 2029-03-28

Abstract

A novel automobile steering transmission shaft comprises a universal joint fork tube, a universal joint fork I, a universal joint I, a dust cover, a spline shaft, a universal joint fork II and a universal joint II, wherein the universal joint fork I and the universal joint fork tube are integrally formed at one end of the universal joint fork tube; the universal joint I is fixedly arranged on the universal joint fork I; the dust cover is clamped in the middle of the universal joint fork tube; one end part of the spline shaft is sleeved in the universal joint fork pipe; the spline shaft and the universal joint fork tube are fixed through riveting; the universal joint fork II is fixedly arranged at the other end of the spline shaft; one end of the spline shaft, which is provided with the universal joint fork II, is provided with a U-shaped notch; and the universal joint II is fixedly arranged on the universal joint fork II. The utility model discloses simple structure, the assembly methods between each connection are all inequality, have improved the NVH performance of whole car effectively.

Description

Novel automobile steering transmission shaft

Technical Field

The utility model relates to an automotive transmission technical field specifically is a novel auto steering transmission shaft.

Background

Along with the improvement of the requirements of consumers on the safety and the comfort of the automobile, automobile manufacturers continuously improve and optimize the structure of each part of the automobile and improve the NVH performance of the whole automobile. The automobile steering transmission shaft is used for changing or maintaining the driving direction of an automobile. In the prior art, the connection mode between each part of the automobile steering transmission shaft and the connecting piece generally adopts welding or the connection mode of adopting single bolt connection between each part, and the two connection modes have the following defects: 1) when welding is adopted, workpieces are easy to denature in the welding process, the stability is poor, and the requirement on the coaxiality of the steering transmission shaft is difficult to guarantee; 2) when a single bolt is adopted, the connection mode between the parts is too single, resonance is easily generated, so that bolt looseness and abnormal sound are caused, and the NVH performance of the whole vehicle is influenced. On the other hand, most of dust covers used for the steering gear input shaft only singly play a role in protecting the input shaft, the dust covers are matched with the steering gear input shell and the steering gear input shaft to play a role in sealing when being assembled, interference of matching between the dust covers and the steering gear input shaft is small in order not to influence steering force of a steering gear, and therefore sealing performance is poor and NVH performance is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the not enough that exists among the prior art, provide a novel car steering transmission shaft, solved between each part of traditional car steering transmission shaft and the connecting piece stability not good be difficult to guarantee the requirement of the axiality of steering transmission shaft or the relatively poor problem of NVH performance and the relatively poor problem of dust cover leakproofness.

this novel automobile steering transmission shaft, on universal joint I and universal joint II at both ends were fixed in universal joint fork I and universal joint fork II respectively through bolted connection's mode, middle integral key shaft one end cup jointed in the universal joint fork intraductally, and the other end passes through bolted connection's mode and is connected with universal joint fork II, and has seted up one "U" type notch with the one end that universal joint fork II is connected, the utility model discloses connected mode diverse between each part, vibrations between each part are difficult to obtain the transmission effectively, when guaranteeing the good axiality of steering transmission shaft, have effectively improved the NVH performance of whole car.

This novel automobile steering transmission shaft, the direct spiro union of dust cover or joint are on the universal joint fork pipe, and the dust cover is equivalent to direct and universal joint fork pipe integrated into one piece, leakproofness between the two, and do not have magnitude of interference between the two, can not produce unnecessary vibration, have further improved the NVH performance of whole car.

In order to realize the purpose, the utility model discloses a technical scheme be:

A novel automobile steering transmission shaft comprises a universal joint fork tube, a universal joint fork I, a universal joint I, a dust cover, a spline shaft, a universal joint fork II and a universal joint II, wherein the universal joint fork I and the universal joint fork tube are integrally formed at one end of the universal joint fork tube; the universal joint I is fixedly arranged on the universal joint fork I; the dust cover is clamped in the middle of the universal joint fork tube; one end part of the spline shaft is sleeved in the universal joint fork pipe; the spline shaft and the universal joint fork tube are fixed through riveting; the universal joint fork II is fixedly arranged at the other end of the spline shaft; one end of the spline shaft, which is provided with the universal joint fork II, is provided with a U-shaped notch; and the universal joint II is fixedly arranged on the universal joint fork II.

Furthermore, the dust cover is in threaded connection with the universal joint fork tube; the dust cover is screwed in the middle of the universal joint fork tube.

Furthermore, the universal joint I and the universal joint fork II are provided with fork holes at the root parts of the fork openings, and the fork holes are round holes.

furthermore, the universal joint fork II is fixedly arranged at one end of the spline shaft through a group of bolt structures.

Furthermore, the dust cover is provided with a plurality of mounting holes; the dust cover is fixedly arranged on the front floor of the automobile cab through the mounting hole.

The connection modes of the parts of the utility model are different, thereby effectively reducing the transmission of vibration between the parts, ensuring the coaxiality of the steering transmission shaft and simultaneously improving the NVH performance of the whole vehicle; on the other hand, the dust cover directly adopts the mode of spiro union or joint to be fixed in on the universal joint breeches pipe, has improved the leakproofness between dust cover and the universal joint breeches pipe and the NVH performance of whole car.

Drawings

FIG. 1 is a front view of the device of the present invention;

FIG. 2 is an axial view of the inventive apparatus;

In the figure: 1. universal joint breeches pipe, 2, universal joint fork I, 3, universal joint I, 4, dust cover, 401, mounting hole, 5, integral key shaft, 501, "U" type notch, 6, universal joint fork II, 7, universal joint II, 8, the hole of forking.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The novel automobile steering transmission shaft shown in fig. 1-2 comprises a universal joint fork tube 1, a universal joint fork I2, a universal joint I3, a dust cover 4, a spline shaft 5, a universal joint fork II 6 and a universal joint II 7, wherein the universal joint fork I2 and the universal joint fork tube 1 are integrally formed at one end of the universal joint fork tube 1; the universal joint I3 is fixedly arranged on the universal joint fork I2; the dust cover 4 is clamped in the middle of the tube of the universal joint fork 1; one end part of the spline shaft 5 is sleeved in the universal joint fork tube 1; the spline shaft 5 and the universal joint fork tube 1 are fixed through riveting; the universal joint fork II 6 is fixedly arranged at the other end of the spline shaft 5; one end of the spline shaft 5, which is provided with the universal joint fork II 6, is provided with a U-shaped notch 501; and the universal joint II 7 is fixedly arranged on the universal joint fork II 6.

Preferably, the dust cover 4 is in threaded connection with the universal joint fork tube 1; the dust cover 4 is screwed in the middle of the universal joint fork tube 1; the universal joint I3 and the universal joint fork II 6 are both round holes at the root of the fork opening, and the springback deformation of the joint fork is reduced; the universal joint fork II 6 is fixedly arranged at one end of the spline shaft 5 through a group of bolt structures; the dust cover 4 is provided with a plurality of mounting holes 401; the dust cover 4 is fixedly mounted on the front floor of the automobile cab through the mounting hole 401.

This novel automobile steering transmission shaft, on universal joint I3 and universal joint II 7 at both ends were fixed in universal joint fork I2 and universal joint fork II 6 respectively through bolted connection's mode, 5 one ends of middle integral key shaft cup jointed in universal joint breeches pipe 1, the other end passes through bolted connection's mode and is connected with universal joint fork II 6, and has seted up one "U" type notch 501 with the one end that universal joint fork II 6 is connected, the vibrations that can further absorption bolted connection department produced, the utility model discloses connected mode diverse between each part, vibrations between each part are difficult to obtain the transmission effectively, when guaranteeing the good axiality of steering transmission shaft, have effectively improved the NVH performance of whole car.

This novel automobile steering transmission shaft, 4 direct spiro unions of dust cover or joint are on universal joint breeches pipe 1, and dust cover 4 is equivalent to direct and 1 integrated into one piece of universal joint breeches pipe, the leakproofness between the two, and do not have the magnitude of interference between the two, can not produce unnecessary vibration, have further improved the NVH performance of whole car.

The connection modes of the parts of the utility model are different, thereby effectively reducing the transmission of vibration between the parts, ensuring the coaxiality of the steering transmission shaft and simultaneously improving the NVH performance of the whole vehicle; on the other hand, the dust cover 4 is directly fixed on the universal joint fork tube 1 in a threaded connection or clamping connection mode, so that the sealing performance between the dust cover 4 and the universal joint fork tube 1 and the NVH performance of the whole vehicle are improved.

The above-described embodiments are illustrative of the present invention and not restrictive, it being understood that various changes, modifications, substitutions and alterations may be made herein without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel automobile steering transmission shaft comprises a universal joint fork tube (1), a universal joint fork I (2), a universal joint I (3), a dust cover (4), a spline shaft (5), a universal joint fork II (6) and a universal joint II (7), and is characterized in that the universal joint fork I (2) and the universal joint fork tube (1) are integrally formed at one end of the universal joint fork tube (1); the universal joint I (3) is fixedly arranged on the universal joint fork I (2); the dust cover (4) is clamped in the middle of the universal joint fork tube (1); one end part of the spline shaft (5) is sleeved in the universal joint fork tube (1); the spline shaft (5) and the universal joint fork tube (1) are fixed through riveting; the universal joint fork II (6) is fixedly arranged at the other end of the spline shaft (5); one end of the spline shaft (5) provided with the universal joint fork II (6) is provided with a U-shaped notch (501); and the universal joint II (7) is fixedly arranged on the universal joint fork II (6).

2. The novel automobile steering transmission shaft according to claim 1, characterized in that the dust cover (4) is in threaded connection with the universal joint fork tube (1); the dust cover (4) is screwed in the middle of the universal joint fork tube (1).

3. The novel automobile steering transmission shaft according to claim 1, wherein the split holes (8) at the root of the split openings of the universal joint I (3) and the universal joint fork II (6) are round holes.

4. The novel automobile steering transmission shaft according to claim 1, wherein the universal joint yoke II (6) is fixedly mounted at one end of the spline shaft (5) through a group of bolt structures.

5. the novel automobile steering transmission shaft according to claim 1, characterized in that the dust cover (4) is provided with a plurality of mounting holes (401); the dust cover (4) is fixedly arranged on the front floor of the automobile cab through the mounting hole (401).