CN214499760U

CN214499760U - High-performance sliding bearing

Info

Publication number: CN214499760U
Application number: CN202022660897.4U
Authority: CN
Inventors: 李小亮; 王练; 李美钗
Original assignee: Shanghai Pohu Drive System Co ltd
Current assignee: Shanghai Pohu Drive System Co ltd
Priority date: 2020-11-17
Filing date: 2020-11-17
Publication date: 2021-10-26
Anticipated expiration: 2030-11-17

Abstract

The utility model discloses a high performance slide bearing, slide bearing is located the piston semicircle orifice, and slide bearing includes metal-based layer, intermediate level and lubricant film, and lubricant film and roller are connected, and metal-based layer and base are connected, and the intermediate level is located between lubricant film and the metal-based layer, and metal-based layer, intermediate level and lubricant film weld each other. The high-performance sliding bearing is characterized in that the sliding bearing is arranged in a piston, a roller is arranged on the sliding bearing, the piston and the roller are piston assemblies and are arranged on the inner wall of the piston in a small clearance mode, hydraulic pressure on the bottom surface of the piston is transmitted to a lubricating layer through the roller, movement of the piston assemblies is composite movement, the roller rolls on the sliding bearing, oil is brought between the two surfaces through relative movement of the roller and the sliding bearing, and a sufficient pressure film is formed to separate the two surfaces so as to bear load.

Description

High-performance sliding bearing

Technical Field

The utility model relates to the field of hydraulic technology, specifically a high performance slide bearing.

Background

Compared with a rolling bearing, the sliding bearing has the characteristics of light weight, small volume, long service life and the like, the sliding bearing is generally applied under important working conditions of low speed, heavy load, high precision and the like, the sliding bearing works under sliding friction, the sliding bearing works stably, reliably and noiselessly, but the sliding bearing has larger starting friction resistance, is easy to generate heat, needs sufficient lubrication, and influences the use reliability and the service life, so that the use range of the sliding bearing is limited to a certain extent, the friction force of the sliding bearing mainly depends on the material of the sliding surface of the bearing, the continuous development and progress of the technology in recent years can reduce the friction loss and the surface wear, and the damping and buffering can improve the performance and the service life of the sliding bearing, the material of the sliding bearing is selected according to different working conditions, and the high-performance sliding bearing is developed and becomes one of key factors for improving the reliability of a hydraulic product.

Disclosure of Invention

An object of the utility model is to provide a high performance slide bearing has low frictional force, high strength, good high low temperature performance, and the problem among the prior art has been solved to the linear velocity height, the advantage effectual, the long service life of self-lubricating.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a high performance slide bearing, includes slide bearing, slide bearing is located the piston semicircle orifice, and slide bearing includes metal-based layer, intermediate level and lubricant film, and lubricant film and roller are connected, and metal-based layer and piston semicircle orifice arc surface are connected, and the intermediate level is located between lubricant film and the metal-based layer, and metal-based layer, intermediate level and lubricant film weld each other.

Preferably, the sliding bearing is of a split type shape and a tile-shaped semi-cylindrical surface structure, and the radian of the sliding bearing is the same as that of the roller.

Preferably, the middle layer is a bronze sintered layer, and the thickness of the middle layer is 0.2-0.35 mm.

Preferably, the lubricating layer is a composite film layer, and the thickness of the lubricating layer is 0.03-0.05 mm.

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

the high-performance sliding bearing is characterized in that the sliding bearing is arranged in a circular hole of a piston, a roller is arranged on the sliding bearing, the piston and the roller are a piston assembly and are arranged on the inner wall of the piston hole with a small clearance, hydraulic pressure on the bottom surface of the piston is transmitted to a lubricating layer through the roller, formed radial force and circumferential force are balanced with hydraulic pressure on the piston, the movement of the piston assembly is composite movement, the roller rolls on the sliding bearing, oil is brought between two surfaces through the relative movement of the roller and the sliding bearing, and an enough pressure film is formed to separate the two surfaces so as to bear load.

Drawings

Fig. 1 is an overall plan view of the sliding bearing of the present invention;

fig. 2 is a plan view of the sliding bearing of the present invention;

fig. 3 is a three-dimensional view of the sliding bearing of the present invention;

fig. 4 is an overall view of the plunger assembly of the present invention;

fig. 5 is a three-dimensional view of the plunger assembly of the present invention.

In the figure: 1. a sliding bearing; 11. a metal base layer; 12. an intermediate layer; 13. a lubricating layer; 2. a piston; 3. a roller.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, a high performance sliding bearing, the sliding bearing 1 is located in a piston round hole, the sliding bearing 1 includes a metal base layer 11, a middle layer 12 sintered by bronze with a thickness of 0.2-0.35 mm and a lubricating layer 13 of a composite film with a thickness of 0.03-0.05 mm, the lubricating layer 13 is connected with a roller 3, the metal base layer 11 is connected with the semi-round hole of the piston 2, the middle layer 12 is located between the lubricating layer 13 and the metal base layer 11, the middle layer 12 and the lubricating layer 13 are welded with each other, the radian of the sliding bearing 1 is the same as the radian of the semi-round hole of the piston 2, the hydraulic pressure on the piston 2 is transmitted to the lubricating layer 13 through the roller 3, the formed radial force and the circumferential force are balanced with the hydraulic pressure on the piston 2, and the generated driving moment overcomes the load moment to rotate the rotor, the roller 3 makes a reciprocating motion in the piston 2, the roller 3 rolls on the sliding bearing 1, oil is brought between the two surfaces by the relative movement of the roller 3 and the slide bearing 1, forming a sufficient pressure film to separate the two surfaces and thus to carry the load.

The working principle is as follows: the sliding bearing 1 is arranged in a semicircular hole of a piston 2, a roller 3 is arranged on the sliding bearing 1, the piston 2 and the roller 3 are a piston 2 assembly, hydraulic pressure on the piston 2 is transmitted to a lubricating layer 13 through the roller 3, formed radial force and circumferential force are balanced with hydraulic pressure on the piston 2, the movement of the piston 2 assembly is composite movement, the roller 3 reciprocates in the piston 2, the roller 3 rolls on the sliding bearing 1, oil is brought between two surfaces through the relative movement of the roller 3 and the sliding bearing 1, a sufficient pressure film is formed, and the two surfaces are separated to bear load.

In summary, the following steps: the high-performance sliding bearing comprises a sliding bearing 1, a roller 3, a piston 2 assembly, a piston 2, a lubricating layer 13, a piston 2 assembly, a roller 3, a piston 2 and a roller 2, wherein the sliding bearing 1 is arranged in a semicircular hole of the piston 2, the roller 3 is arranged on the sliding bearing 1, the hydraulic pressure on the bottom surface of the piston 2 is transmitted to the lubricating layer 13 through the roller 3, the formed radial force and the circumferential force are balanced with the hydraulic pressure on the piston 2 in an equal phase, the movement of the piston 2 assembly is a composite movement, the roller 3 rolls on the sliding bearing 1, oil is brought between two surfaces through the relative movement of the roller 3 and the sliding bearing 1, an enough pressure film is formed, and the two surfaces are separated to bear load.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A high-performance sliding bearing comprising a sliding bearing (1), characterized in that: the sliding bearing (1) comprises a metal base layer (11), an intermediate layer (12) and a lubricating layer (13), wherein the lubricating layer (13) is connected with a roller (3), the metal base layer (11) is connected with a semicircular hole arc surface of a piston (2), the intermediate layer (12) is located between the lubricating layer (13) and the metal base layer (11), the intermediate layer (12) and the lubricating layer (13) are welded with each other.

2. A high performance slide bearing according to claim 1, characterized in that the slide bearing (1) is of a split-type shape, a tile-like semi-cylindrical structure, the arc of the slide bearing (1) being the same as the arc of the roller (3).

3. A high-performance plain bearing according to claim 1, characterized in that the intermediate layer (12) is a sintered bronze layer with a thickness of 0.2 to 0.35 mm.

4. A high performance plain bearing according to claim 1, wherein the lubricating layer (13) is a composite film layer having a thickness of 0.03 to 0.05 mm.