CN215409827U

CN215409827U - Intermediate shaft structure convenient to whole car noise investigation

Info

Publication number: CN215409827U
Application number: CN202120785935.0U
Authority: CN
Inventors: 董子源; 许栋鹏; 田双鹏
Original assignee: Bosch Huayu Steering Systems Yantai Co Ltd
Current assignee: Bosch Huayu Steering Systems Yantai Co Ltd
Priority date: 2021-04-16
Filing date: 2021-04-16
Publication date: 2022-01-04
Anticipated expiration: 2031-04-16

Abstract

The utility model discloses an intermediate shaft structure convenient for the noise examination of a whole vehicle, which comprises a sliding pair and a joint fork arranged at two ends of the sliding pair, wherein the sliding pair comprises a sliding spline shaft and a sliding spline pipe which is sleeved on one end of the sliding spline shaft in a matching manner, a positioning groove is axially arranged on the surface of the sliding spline shaft, a positioning hole matched with the positioning groove is radially arranged on the surface of the sliding spline pipe, and a positioning bolt penetrates through the positioning hole to be positioned in the positioning groove. In the process of checking the whole vehicle, the upper end yoke and the lower end yoke which are fixedly installed through the bolts are kept still, and the shaft tube matching position relation between the sliding pairs is changed by adjusting the positioning bolts each time, so that different noise types are verified and distinguished, and further the specific problem area of the spline tube is locked.

Description

Intermediate shaft structure convenient to whole car noise investigation

Technical Field

The utility model relates to a steering intermediate shaft, in particular to an intermediate shaft structure convenient for noise inspection of a whole vehicle.

Background

The steering intermediate shaft is an important part in an automobile steering system and is used for connecting a steering column and a steering machine and transmitting torque and rotating speed from the steering column to the steering machine. However, the troubleshooting work of the middle shaft in the case of noise can be mostly finished only by ABA interchange (application behavior analysis). If the noise of the sliding pair is determined, the specific part of the sliding pair with the problem needs to be continuously identified.

As shown in fig. 1, in the conventional noise checking process, if the noise is locked at the position of the sliding pair 1 and the specific region of the problem is determined by adjusting the different matching relation of the positions of the sliding pair 1, the noise is analyzed by simulating the position of the whole vehicle mounted by a test bench or the operation mode is realized by changing the length of the joint fork 2. However, such operation introduces a variable in the force relationship (e.g., F2' in fig. 2) that does not determine the true source of the problem in noise performance.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems in the prior art, the utility model provides the intermediate shaft structure which is convenient for the noise inspection of the whole vehicle, and the specific noise problem source can be effectively determined through the subarea inspection of different positions of the shaft tube between the sliding pairs.

The utility model discloses an intermediate shaft structure convenient for noise investigation of a whole vehicle, which has the following specific structure:

including the vice festival fork that reaches locate the vice both ends of sliding, the vice sliding spline pipe that locates one of sliding spline shaft one end is located including sliding spline shaft, cooperation cover to the sliding spline shaft, positioning groove has been seted up to sliding spline shaft surface axial, sliding spline pipe surface radially opens have with positioning groove matched with locating hole to pass locating hole to positioning groove in through positioning bolt and fix a position.

The number of the positioning grooves is at least two, and the positioning grooves are uniformly distributed on the surface of the sliding spline shaft.

The positioning groove is in a V-shaped groove shape.

Each positioning groove is provided with at least one positioning hole.

The positioning bolt is an inner hexagon bolt.

The intermediate shaft structure convenient for the noise investigation of the whole vehicle provided by the utility model has the following beneficial effects:

1. the matching position relation of the shaft tubes among the sliding pairs is changed by adjusting the positioning bolts every time, so that different noise types are verified and distinguished, and the specific problem area of the spline tube is locked.

2. The structure is simple and easy to operate, and the intermediate shaft does not need to be replaced by dismounting the joint fork before each checking process;

3. compared with the traditional ABA interchange, under the condition of known sliding pair noise, the specific problem area of the sliding pair matching can be quickly determined without introducing other variables.

4. The structure can carry a rack to simulate the fast troubleshooting noise source of the whole vehicle position, and the simulation of the state analysis noise of the whole vehicle is completed by combining the rack with a rack sensor, a tooling rack, a measuring tower and an angle-adjustable test bed.

Drawings

FIG. 1 is a schematic structural view of a conventional intermediate shaft;

FIG. 2 is a schematic view of the stress analysis of the middle shaft in the conventional noise checking process;

FIG. 3 is a schematic structural view of the intermediate shaft of the present invention;

FIG. 4 is a schematic structural view of the sliding spline shaft of the present invention;

FIG. 5 is a schematic view of the mating of the sliding spline housing of the present invention with a spline shaft.

Detailed Description

The structure of the intermediate shaft for facilitating the noise investigation of the whole vehicle is further described with reference to the accompanying drawings and embodiments.

As shown in fig. 3, the structure of the intermediate shaft convenient for noise checking of the whole vehicle of the present invention is the same as that of the prior art, and also includes a sliding pair 1 and a yoke 2 disposed at both ends of the sliding pair 1, where the sliding pair 1 includes a sliding spline shaft 11 and a sliding spline tube fittingly sleeved on one end of the sliding spline shaft 11, and is different in that a positioning groove 111 is axially disposed on the surface of the sliding spline shaft 11, a positioning hole 121 matched with the positioning groove 111 is radially disposed on the surface of the sliding spline tube 12, and the positioning bolt 122 penetrates through the positioning hole 121 to be positioned in the positioning groove 111, so that different positions of the shaft tube between the sliding pair 1 can be locked as required, and partitioned checking is convenient.

As an embodiment, the number of the positioning grooves 111 is at least two, and the positioning grooves 111 are uniformly arranged on the surface of the sliding spline shaft 11, as shown in fig. 4, the number of the positioning grooves 111 is three, and the positioning grooves are uniformly arranged on the circumference of the sliding spline shaft 11.

As an example, the shape of the positioning groove 111 is a V-shaped groove or other similar shapes.

As an embodiment, each positioning groove 111 is configured with at least one positioning hole 121, as shown in fig. 3 and 5, each positioning groove 111 is configured with two positioning holes 121 in front and back to form two fixing sections, and a better positioning effect can be achieved by a corresponding number of positioning bolts 122.

As an embodiment, the positioning bolt 122 may be a hexagon socket head cap bolt or other type of bolt, and the end portion of the bolt is snapped into the positioning groove 111 to perform the locking and positioning function.

In the process of checking the whole vehicle, the upper end yoke 2 and the lower end yoke 2 which are fixedly installed through bolts are kept still, and the matching position relation of the shaft tubes among the sliding pairs 1 is changed by adjusting the positioning bolts 122 every time, so that different noise types are verified and distinguished, and further the specific problem area of the spline tube is locked.

However, those skilled in the art should realize that the above embodiments are illustrative only and not limiting to the present invention, and that changes and modifications to the above described embodiments are intended to fall within the scope of the appended claims, provided they fall within the true spirit of the present invention.

Claims

1. The utility model provides an intermediate shaft structure convenient to whole car noise investigation, includes that the slip is vice and locate the section fork at the vice both ends of slip, slip vice including slip integral key shaft, cooperation cover locate the slip integral key shaft and serve the slip integral key pipe, its characterized in that: the surface of the sliding spline shaft is axially provided with a positioning groove, the surface of the sliding spline pipe is radially provided with a positioning hole matched with the positioning groove, and the positioning bolt penetrates through the positioning hole to be positioned in the positioning groove.

2. The intermediate shaft structure convenient for noise investigation of the whole vehicle as claimed in claim 1, wherein: the number of the positioning grooves is at least two, and the positioning grooves are uniformly distributed on the surface of the sliding spline shaft.

3. The intermediate shaft structure convenient for noise investigation of the whole vehicle as claimed in claim 2, wherein: the positioning groove is in a V-shaped groove shape.

4. The intermediate shaft structure convenient for noise investigation of the whole vehicle as claimed in claim 2, wherein: each positioning groove is provided with at least one positioning hole.

5. The intermediate shaft structure convenient for noise investigation of the whole vehicle as claimed in claim 1, wherein: the positioning bolt is an inner hexagon bolt.