CN210068743U

CN210068743U - Tie bar replaces welded pull rod bearing structure

Info

Publication number: CN210068743U
Application number: CN201920262586.7U
Authority: CN
Inventors: 尹新赏; 蒋学威
Original assignee: JIANGSU CCVI BEARING CO Ltd
Current assignee: JIANGSU CCVI BEARING CO Ltd
Priority date: 2019-03-01
Filing date: 2019-03-01
Publication date: 2020-02-14
Anticipated expiration: 2029-03-01

Abstract

The utility model discloses a press muscle to replace welded pull rod bearing structure, including two rod end joint bearings and connecting rod, rod end joint bearing's the end of revolving is equipped with the screw thread, and the both ends of connecting rod are equipped with the screw hole, rod end joint bearing's the end of revolving and screw hole cooperation, and press the muscle to the cooperation position, realize linking firmly between connecting rod and the rod end joint bearing, realize being connected through pressing the muscle between connecting rod and rod end joint bearing, can simplify pull rod bearing's assembling process, reduce manufacturing cost, improve assembly efficiency.

Description

Tie bar replaces welded pull rod bearing structure

Technical Field

The utility model belongs to the technical field of the connecting rod bearing, especially, relate to a ribbing replaces welded pull rod bearing structure.

Background

The pull rod bearing is mainly used for connecting a steering gear and a steering wheel in the chassis structure of an engineering machinery vehicle, ensures the safety of steering and jumping of the wheel, bears the load of the vehicle and maintains the normal operation of the vehicle in the working process by a suspension for transmitting force and moment between a vehicle frame and an axle (wheel), and is a key part in an independent suspension chassis steering system. The method can ensure that the wheel track and the front wheel positioning parameter change are within an acceptable limit range, and ensure that the vehicle has good running stability.

The conventional pull rod bearing structure adopts standard rod end joint bearings at two ends, the joint bearings at the two ends are connected through a connecting rod by adopting threads, and the working process of the pull rod bearing is prevented from being loosened by welding or nut locking, so that the manufacturing process is complex and the assembly efficiency is low; the actual use working condition of the vehicle is mountainous area, farm and other terrains, and the working condition is poor and easy to bump, so that the joint bearing and the connecting rod are easy to loosen and further separate in the use process of the traditional processing mode, and certain influence is generated on safe operation; therefore, higher requirements are put on the dust tightness and the strength of the pull rod bearing.

SUMMERY OF THE UTILITY MODEL

The utility model discloses according to the problem that exists among the prior art, a ribbing replaces welded pull rod bearing structure is proposed, and aim at solves that current manufacturing process assembly is complicated, manufacturing cost is higher, the utility model provides a manufacturing process is simple, the manufacturing cost is lower novel overall structure connecting rod bearing relatively.

The utility model discloses the technical scheme who adopts as follows:

the utility model provides a press muscle to replace welded pull rod bearing structure, includes two rod end joint bearings and connecting rod, rod end joint bearing's the end of screwing in is equipped with the screw thread, the both ends of connecting rod are equipped with the screw hole, rod end joint bearing's the end of screwing in and screw hole cooperation, and press the muscle to the cooperation position, realize linking firmly between connecting rod and the rod end joint bearing.

Furthermore, the rod end joint bearing comprises a shell and a radial joint bearing, wherein one end of the shell is provided with a bearing mounting seat hole for placing the radial joint bearing, and the other end of the shell is a screwing end for connecting with a connecting rod;

further, the radial spherical plain bearing comprises a steel ball, and a steel ring is sleeved on the steel ball in the circumferential direction;

further, the spherical surface of the steel ball is coated with grease;

further, a dust cover is arranged between the shell and the radial spherical plain bearing.

The utility model has the advantages that:

the utility model discloses through the ribbing between connecting rod and rod end joint bearing, realize being connected, simplified technology assembly process, reduction manufacturing cost, improve assembly efficiency. And the indentation depth is controlled to ensure that the product has enough rotating torque, the shell and the connecting rod are prevented from being twisted in work, and the performance and the stability of the product are improved.

Drawings

Fig. 1 is a front view of a drawbar bearing according to the present invention;

FIG. 2 is a schematic view of a portion of a pull rod bearing of the present invention;

fig. 3 is a cross-sectional view taken along direction a of fig. 1 and 2 according to the present invention;

fig. 4 is a side view in the direction F of fig. 3 according to the present invention;

in the figure, the bearing comprises a rod end joint bearing 1, a rod end joint bearing 2, a connecting rod 3, a shell 4, a steel ring 5, a lubricant 6, a steel ball 7, a dust cover 23 and a radial joint bearing.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

The tie-bar bearing structure shown in fig. 1 and 2 comprises two rod end spherical bearings 1 and a connecting rod 2, wherein the screwing end of each rod end spherical bearing 1 is provided with a thread, two ends of each connecting rod 2 are also provided with threaded holes, the screwing end of each rod end spherical bearing 1 is matched with the threaded hole of each connecting rod 2, each rod end spherical bearing 1 comprises a shell 3 and a radial spherical bearing 23, the radial spherical bearing 23 is assembled in a bearing mounting seat hole of the shell 3 in an interference fit mode, each radial spherical bearing 23 comprises a steel ball 6, a steel ring 4 is sleeved on the steel ball 6 in the circumferential direction, a lubricant 5 is sprayed on the spherical surface of the steel ball 6, and a dust cover 2 is arranged between each radial spherical bearing 23 and the shell 03.

For a clearer explanation of the scope of protection of the invention, the following is explained further in conjunction with the assembly process of the invention:

the steel ring 4 is sleeved on the circumferential direction of the steel ball 6 to form a radial spherical plain bearing 23, the spherical surface of the steel ball 6 is in clearance fit with the spherical surface of the steel ring 4, the steel ball 6 can rotate flexibly in the steering process, the stability of the machine is improved, the radial spherical plain bearing 23 is in interference fit with a bearing mounting seat hole of the shell 3, and the ball pin is ensured not to generate relative displacement between the radial spherical plain bearing 23 and the shell 3 in the rotating process, so that the steel ring 4 of the radial spherical plain bearing 23 is ensured not to be worn with the shell 3, and the service life of the bearing and the running stability of the machine are improved; matching the screwed-in part on the shell 3 with the threaded hole of the connecting rod 2, and ensuring the radial pull-out force of the product through threaded connection; a special tool is used for simulating a customer tool for assembly, and the centers of two ends of the bearing are adjusted to ensure that the customer can assemble smoothly finally; by utilizing special oil pressure equipment, ribs are pressed at two ends of the connecting rod 2, the product is ensured to have enough large rotating torque by controlling the indentation depth, and the shell 3 and the connecting rod 2 are ensured not to be twisted in work.

And firstly, grease is injected into the spherical surface of the steel ball 6, and then the dust cover 7 is installed, so that good sealing performance is realized, external dust and sand are prevented from entering, meanwhile, the loss of the lubricant is prevented, and the service life is prolonged.

In addition, as shown in fig. 3 and 4, a rib pressing and point hitting technology is adopted on the axial end face of the shell 3, so that the radial bearing release force is improved, and the radial spherical plain bearing 23 is ensured not to release from the radial direction in the working process; the clearance is controlled by the gap between the spherical surface of the steel ball 6 and the spherical surface of the steel ring 4, so that the vehicle is ensured not to bump and move under severe working conditions.

The above embodiments are only used for illustrating the design ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, and the protection scope of the present invention is not limited to the above embodiments. Therefore, all the equivalent changes or modifications made according to the principles and design ideas disclosed by the present invention are within the protection scope of the present invention.

Claims

1. The utility model provides a press muscle to replace welded pull rod bearing structure, its characterized in that includes two rod end joint bearing (1) and connecting rod (2), the end of turning round of rod end joint bearing (1) is equipped with the screw thread, the both ends of connecting rod (2) are equipped with the screw hole, the end of turning round and the screw hole cooperation of rod end joint bearing (1), and press the muscle to the cooperation position, realize linking firmly between connecting rod (2) and rod end joint bearing (1).

2. The tie rod bearing structure replacing welding by beading according to claim 1, wherein the rod end joint bearing (1) comprises a shell (3) and a radial joint bearing (23), one end of the shell (3) is provided with a bearing mounting seat hole for placing the radial joint bearing (23), and the other end is a screwing end for connecting with the connecting rod (2).

3. A tie-bar bearing structure instead of welded according to claim 2, characterized in that the radial spherical plain bearing (23) comprises a steel ball (6), and a steel ring (4) is sleeved on the circumference of the steel ball (6).

4. A tie-bar instead of welded tie-rod bearing structure according to claim 3, characterized in that the spherical surface of the steel ball (6) is greased.

5. Tie rod bearing arrangement according to claim 2, wherein a dust shield (7) is provided between the housing (3) and the spherical plain radial bearing (23).