CN215475337U

CN215475337U - Anti-impact structure of inner pull rod assembly of automobile rack and pinion steering gear

Info

Publication number: CN215475337U
Application number: CN202121884699.4U
Authority: CN
Inventors: 李振全; 童平
Original assignee: Guangzhou Kuayue Auto Parts And Accessories Industry Co ltd
Current assignee: Guangzhou Kuayue Auto Parts And Accessories Industry Co ltd
Priority date: 2021-08-12
Filing date: 2021-08-12
Publication date: 2022-01-11
Anticipated expiration: 2031-08-12

Abstract

The utility model discloses an anti-impact structure of an inner tie rod assembly of an automobile rack and pinion steering gear, which comprises a steering gear shell and a connecting rod, wherein the steering gear shell is movably connected with the connecting rod through a connecting assembly, a placing groove is formed in the end part of the steering gear shell, a buffer oil cylinder is placed in the placing groove, an ejector rod at one end of the buffer oil cylinder penetrates through the connecting assembly and extends into the connecting assembly to be connected with a lining plate of a spherical structure, and the lining plate is matched with the end part of the connecting rod, which is positioned in the connecting assembly. When the connecting rod moves to the limit position, the end part of the connecting rod directly acts on the lining plate through the connecting component and pushes the lining plate to be pressed into the groove until the lining plate acts on the gasket, when the lining plate moves, the lining plate acts on the buffer oil cylinder through the ejector rod and is used for absorbing kinetic energy, and the gasket further prevents the lining plate from colliding with the inner wall of the groove to generate noise.

Description

Anti-impact structure of inner pull rod assembly of automobile rack and pinion steering gear

Technical Field

The utility model relates to the field of steering gears, in particular to an anti-impact structure of an inner tie rod assembly of an automobile rack and pinion steering gear.

Background

A ball seat of a tie rod assembly in a rack and pinion steering gear of an automobile is in transmission connection with the steering gear through a screw structure, and when a steering angle is large, the tie rod assembly is in contact with or collides with a steering shell of the steering gear, and finally abnormal sound is generated.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an anti-impact structure of an inner pull rod assembly of an automobile rack and pinion steering gear, which aims to solve the problem that the pull rod assembly is contacted or collided with a steering shell of the steering gear when the steering angle is large.

In order to achieve the purpose, the utility model provides the following technical scheme:

car rack and pinion formula steering gear inner tie rod subassembly protecting against shock structure, including steering gear casing and connecting rod, the steering gear casing passes through coupling assembling and connecting rod swing joint, the tip of steering gear casing is equipped with the standing groove, buffer cylinder has been placed to the inside of standing groove, buffer cylinder's one end ejector pin passes coupling assembling to extend to coupling assembling's inside and spherical surface structure's welt connection, the welt is located the inside tip cooperation of coupling assembling with the connecting rod.

Further, steering gear casing and coupling assembling threaded connection, the connecting rod passes through bulb structural connection with coupling assembling.

Further, the inboard of coupling assembling is equipped with and welt complex recess, be equipped with the gasket between the inner wall of welt and recess.

Furthermore, the lining plate extends out of the groove in a normal state, and the depth of the groove is larger than the thickness of the lining plate.

Furthermore, one end of the ejector rod extends into the buffer oil cylinder and is connected with the piston.

Furthermore, one side of the piston, which is far away from the ejector rod, is provided with a compression spring.

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

when the connecting rod moves to the limit position, the end part of the connecting rod directly acts on the lining plate through the connecting component and pushes the lining plate to be pressed into the groove until the lining plate acts on the gasket, when the lining plate moves, the lining plate acts on the buffer oil cylinder through the ejector rod and is used for absorbing kinetic energy, and the gasket further prevents the lining plate from colliding with the inner wall of the groove to generate noise.

Drawings

FIG. 1 is a schematic structural diagram of an anti-impact structure of an inner tie rod assembly of an automobile rack and pinion steering gear;

fig. 2 is a schematic diagram of the internal structure of a buffer cylinder in an anti-impact structure of an inner tie rod assembly of an automobile rack and pinion steering gear.

In the figure: 1. a diverter housing; 2. a connecting rod; 3. a connecting assembly; 4. a placement groove; 5. a buffer oil cylinder; 6. a top rod; 7. a liner plate; 8. a groove; 9. a gasket; 10. a piston; 11. compressing the spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides the following technical solutions:

drag link subassembly protecting against shock structure in car rack and pinion formula steering gear, including steering gear casing 1 and connecting rod 2, steering gear casing 1 passes through coupling assembling 3 and connecting rod 2 swing joint, and the tip of steering gear casing 1 is equipped with standing groove 4, and buffer cylinder 5 has been placed to the inside of standing groove 4, and coupling assembling 3 is passed to the ejector pin 6 of 5 one ends of buffer cylinder to extend to coupling assembling 3's inside and be connected with spherical structure's welt 7, welt 7 and connecting rod 2 are located the inside tip cooperation of coupling assembling 3.

When the extreme position that connecting rod 2 removed, its tip will be directly acted on welt 7 through coupling assembling 3 to promote welt 7 and impress it inside recess 8, until on using gasket 9, welt 7 when removing, act on buffer cylinder 5 through ejector pin 6 for the absorption of kinetic energy, and gasket 9 further avoids welt 7 and 8 inner walls collisions of recess to send the noise.

In order to increase the contact area of the lining 7 with the connecting rod 2 as much as possible, the lining 7 may be provided in a hemispherical structure at most.

Steering gear casing

1 and 3 threaded connection of coupling assembling, connecting rod 2 passes through bulb structural connection with coupling assembling 3 for coupling assembling 3 is convenient for the dismantlement and the maintenance in later stage with steering gear casing 1 and the removable fixed connection of connecting rod 2.

Coupling assembling 3's inboard be equipped with welt 7 complex recess 8, be equipped with gasket 9 between welt 7 and the inner wall of recess 8, recess 8 plays the effect of keeping away the sky, and when the excessive force, welt 7 is impressed in recess 8, then bears the effort by coupling assembling 3 to protection welt 7 can not be impaired.

The recess 8 stretches out during 7 normalizations of welt, and the degree of depth of recess 8 is greater than the thickness of welt 7, and welt 7 is preferred during the normality with connecting rod 2 tip sliding connection, because the degree of depth of recess 8 is greater than the thickness of welt 7, so when welt 7 atress is too big, can effectively take in the recess 8, avoid welt 7 to strike the damage.

One end of the ejector rod 6 extends into the buffer oil cylinder 5 and is connected with the piston 10, the edge of the piston 10 is in clearance fit with the inner wall of the buffer oil cylinder 5, and when the impact is applied, the movement of the piston 10 is blocked by fluid, so that the buffer is realized.

And a compression spring 11 is arranged on one side of the piston 10 far away from the mandril 6, and the compression spring 11 is used for buffering the reset of the rear piston 10.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which includes the appended claims and their equivalents.

Claims

1. Car rack and pinion formula steering gear inner linkage subassembly protecting against shock structure, including steering gear casing (1) and connecting rod (2), steering gear casing (1) is through coupling assembling (3) and connecting rod (2) swing joint, its characterized in that: the tip of steering gear casing (1) is equipped with standing groove (4), buffer cylinder (5) have been placed to the inside of standing groove (4), coupling assembling (3) are passed in ejector pin (6) of buffer cylinder (5) one end to extend to the inside of coupling assembling (3) and be connected with welt (7) of spherical surface structure, welt (7) and connecting rod (2) are located the tip cooperation of coupling assembling (3) inside.

2. The inner tie rod assembly impact prevention structure of an automobile rack and pinion steering gear according to claim 1, characterized in that: steering gear casing (1) and coupling assembling (3) threaded connection, connecting rod (2) pass through bulb structural connection with coupling assembling (3).

3. The inner tie rod assembly impact prevention structure of an automobile rack and pinion steering gear according to claim 1, characterized in that: the inboard of coupling assembling (3) is equipped with recess (8) with welt (7) complex, be equipped with gasket (9) between the inner wall of welt (7) and recess (8).

4. The impact prevention structure of an inner tie rod assembly of an automobile rack and pinion steering gear according to claim 3, wherein: the lining plate (7) extends out of the groove (8) in a normal state, and the depth of the groove (8) is larger than the thickness of the lining plate (7).

5. The inner tie rod assembly impact prevention structure of an automobile rack and pinion steering gear according to claim 1, characterized in that: one end of the ejector rod (6) extends into the buffer oil cylinder (5) and is connected with the piston (10).

6. The inner tie rod assembly impact prevention structure of an automobile rack and pinion steering gear according to claim 5, characterized in that: and a compression spring (11) is arranged on one side of the piston (10) far away from the mandril (6).