CN210555108U

CN210555108U - Steering mechanism assembly with anti-deformation function

Info

Publication number: CN210555108U
Application number: CN201921247678.4U
Authority: CN
Inventors: 孙冬冬; 卞维展; 赵旭华; 张刚; 高阳; 叶宗胜
Original assignee: Shandong Lingong Construction Machinery Co Ltd
Current assignee: Shandong Lingong Construction Machinery Co Ltd
Priority date: 2019-08-02
Filing date: 2019-08-02
Publication date: 2020-05-19
Anticipated expiration: 2029-08-02

Abstract

The utility model discloses a steering mechanism assembly with anti-deformation function, it belongs to the engineering machine tool field. The steering device mainly comprises an axle housing and a steering knuckle, wherein the upper side and the lower side of the axle housing and the upper side and the lower side of the steering knuckle are respectively connected through a steering pin, a bearing and an oil seal are arranged between the steering pin and the axle housing, and an adjusting gasket is arranged between the steering pin and the steering knuckle; and a reversible deformation piece with the wall thickness gradually increasing along the direction from the axle housing to the steering knuckle is arranged between the bottom of the steering knuckle and the steering pin. The utility model discloses simple structure, maintenance convenience, reliability are high, have prolonged the life of bearing. The utility model discloses mainly used loaderdigger.

Description

Steering mechanism assembly with anti-deformation function

Technical Field

The utility model belongs to the engineering machine tool field, specifically speaking especially relates to a steering mechanism assembly with anti-deformation function

Background

The excavating loader integrates excavating and loading, and can efficiently carry out excavating, loading and transporting, crushing and other works by matching with a quick-change device. At present, for realizing carrying out shipment and turning to in narrow and small place, the steerable transaxle of its front axle general configuration, for realizing turning to the function, steering mechanism mainly includes spare parts such as knuckle, bearing, steering pin, adjusting shim, and current steering mechanism mainly has two kinds: one is a knuckle bearing steering mechanism, and the other is a tapered roller bearing steering mechanism.

The axle housing bearing nest of the knuckle bearing steering mechanism is difficult to process, the assembly manufacturability requirement is high, the disassembly and inspection maintainability is poor, and the production cost is high. The tapered roller bearing steering mechanism is simple in structure, good in axle housing and knuckle processing manufacturability, convenient to disassemble, assemble and maintain and low in cost. However, during assembly, appropriate pre-tightening force needs to be applied to the upper and lower steering pins to ensure that the pre-tightening force exists between the upper and lower bearings when the steering mechanism is loaded, so as to ensure the overall rigidity of the steering mechanism. Because of pretension itself will lead to steering mechanism to have certain deformation, when the transaxle was loaded, the deformation of meeting aggravation steering mechanism lower part, the deformation of axle housing and knuckle can produce very big influence to tapered roller bearing life-span, if the deflection is too big, can directly cause the short-term damage of lower part bearing, the life-span reduces.

Disclosure of Invention

An object of the utility model is to overcome above-mentioned defect, provide a steering mechanism assembly with anti-deformation function, its simple structure, maintain convenient, the reliability is high, has prolonged the life of bearing.

The steering mechanism assembly with the reversible deformation function comprises an axle housing and a steering knuckle, wherein the upper side and the lower side of the axle housing and the upper side and the lower side of the steering knuckle are respectively connected through a steering pin, a bearing and an oil seal are arranged between the steering pin and the axle housing, and an adjusting gasket is arranged between the steering pin and the steering knuckle; and a reversible deformation piece with the wall thickness gradually increasing along the direction from the axle housing to the steering knuckle is arranged between the bottom of the steering knuckle and the steering pin.

Further, the anti-deformation piece is a first adjusting gasket, and the thickness of the wall of the first adjusting gasket is gradually increased from one end to the other end.

Further, the anti-deformation piece is a half piece of adjusting gasket for reserving two mounting holes.

Preferably, the anti-deformation member is of an equal wall thickness structure.

Preferably, the anti-deformation piece is a variable wall thickness structure with the wall thickness gradually increasing from one end to the other end with the mounting hole along the direction of the symmetry axis.

Further, the anti-deformation piece and the bottom of the steering knuckle are integrally formed.

Further, the bearing is a tapered roller bearing.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses add anti-deformation piece between the bottom of knuckle and steering pin, anti-deformation piece makes steering pin and bearing produce certain anti-deformation, and this anti-deformation can offset because of the steering mechanism deformation that steering axle atress produced, makes the bearing be in reasonable stress state, ensures that the upper and lower bearing works at certain axiality within range to bearing life has been prolonged, has promoted the reliability of transaxle.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

FIG. 3 is a front view of a first adjustment shim;

FIG. 4 is a top view of a first adjustment pad;

FIG. 5 is a front view of a half shim;

FIG. 6 is a top view of a half shim;

FIG. 7 is a schematic structural view of a knuckle according to a fourth embodiment.

In the figure, 1, a knuckle; 2. a reverse deformation member; 3. a steering pin; 4. a bearing; 5. an axle housing; 6. adjusting the gasket; 7. a bolt; 8. oil sealing; 9. adjusting a first gasket; 10. half of the adjusting shim.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

the first embodiment is as follows: as shown in fig. 1 and 2, the steering mechanism assembly with the reverse deformation function comprises an axle housing 5 and a steering knuckle 1, wherein the upper side and the lower side of the axle housing 5 and the upper side and the lower side of the steering knuckle 1 are respectively connected through a steering pin 3, a bearing 4 and an oil seal 8 are arranged between the steering pin 3 and the axle housing 5, the bearing 4 is a tapered roller bearing, and an adjusting gasket 6 is arranged between the steering pin 3 at the upper part and the steering knuckle 1; the anti-deformation piece 2 is arranged between the bottom of the steering knuckle 1 and the steering pin 3 at the lower part of the steering knuckle 1, the wall thickness of the anti-deformation piece 2 gradually increases along the direction from the axle housing 5 to the steering knuckle 1, the anti-deformation piece 2 is an adjusting gasket I9, and the wall thickness of the adjusting gasket I9 gradually increases from one end to the other end.

Example two: as shown in fig. 3 and 4, the anti-deformation member 2 is a half adjusting shim 10 with two mounting holes reserved, and the half adjusting shim 10 is of an equal wall thickness structure; the rest is the same as the first embodiment.

When installed, the shim half 10 is mounted on the side adjacent to the knuckle.

Example three: as shown in fig. 5 and 6, the anti-deformation member 2 is a variable wall thickness structure with gradually increasing wall thickness from one end to the other end with the mounting hole along the direction of the symmetry axis; the other steps are the same as those of the embodiment.

Example four: as shown in fig. 7, the anti-deformation member 2 is integrally formed with the bottom of the knuckle 1; the rest is the same as the first embodiment.

The principle of the utility model is that: a reversible deformation piece 2 with an inclination angle is arranged between a steering pin 3 at the lower part and a steering knuckle 1, and after assembly, the bearing 4 has certain predeformation which is used for offsetting the deformation of a steering mechanism caused by loading of a drive axle, so that the upper bearing 4 and the lower bearing 4 can work within a certain coaxiality range, and the service life of the bearing 4 is prolonged.

The utility model discloses when the preparation, the wall thickness increment volume of anti-deformation piece 2 is confirmed according to axle housing 5 and knuckle 1's rigidity, because axle housing 5 and the knuckle 1 of different rigidities, its deflection is different.

The utility model discloses during the installation, adjust axle housing 5 and knuckle 1 back well, assemble earlier the kingpin 3 of lower part, install anti-deformation piece 2 between kingpin 3 and the knuckle 1, install in the outside on one side that anti-deformation piece 2 is thick promptly the knuckle 1 one side, screw up kingpin 3 and knuckle 1 through bolt 7 according to corresponding tightening torque, assemble the kingpin 3 on upper portion at last, select to install different adjusting shim 6 according to the condition, adjusting shim 6 is the wall thickness structure such as, thereby ensure upper and lower bearing 4 all under reasonable pretightning force, the life of extension bearing 4.

Claims

1. A steering mechanism assembly with a reversible deformation function comprises an axle housing (5) and a steering knuckle (1), wherein the upper side and the lower side of the axle housing (5) and the upper side and the lower side of the steering knuckle (1) are respectively connected through a steering pin (3), a bearing (4) and an oil seal (8) are arranged between the steering pin (3) and the axle housing (5), and an adjusting gasket (6) is arranged between the steering pin (3) and the steering knuckle (1); the method is characterized in that: and a reversible deformation part (2) with the wall thickness gradually increasing along the direction from the axle housing (5) to the steering knuckle (1) is arranged between the bottom of the steering knuckle (1) and the steering pin (3).

2. The steering mechanism assembly with the reverse deformation function according to claim 1, wherein: the anti-deformation piece (2) is a first adjusting gasket (9), and the thickness of the wall of the first adjusting gasket (9) is gradually increased from one end to the other end.

3. The steering mechanism assembly with the reverse deformation function according to claim 1, wherein: the anti-deformation piece (2) is a half adjusting gasket (10) with two reserved mounting holes.

4. The steering mechanism assembly with the reverse deformation function according to claim 3, wherein: the anti-deformation piece (2) is of an equal-wall-thickness structure.

5. The steering mechanism assembly with the reverse deformation function according to claim 3, wherein: the anti-deformation piece (2) is of a variable wall thickness structure with the wall thickness gradually increasing from one end to the other end with the mounting hole along the direction of the symmetry axis.

6. The steering mechanism assembly with the reverse deformation function according to claim 1, wherein: the anti-deformation piece (2) and the bottom of the steering knuckle (1) are integrally formed.

7. The reverse-deformation-functional steering mechanism assembly according to any one of claims 1 to 6, wherein: the bearing (4) is a tapered roller bearing.