CN215980464U

CN215980464U - Wear-reducing and wear-resisting bearing bush

Info

Publication number: CN215980464U
Application number: CN202121963032.3U
Authority: CN
Inventors: 丘卫平; 胡秀昊; 黄从四
Original assignee: Guangdong Shaoguan Spare Parts Power Machinery Co ltd
Current assignee: Guangdong Shaoguan Spare Parts Power Machinery Co ltd
Priority date: 2021-08-19
Filing date: 2021-08-19
Publication date: 2022-03-08
Anticipated expiration: 2031-08-19

Abstract

The utility model relates to a wear-reducing and wear-resisting bearing bush, which comprises: the bearing bush comprises a bearing bush body, wherein the bearing bush body is semicircular, and a plurality of concave parts are arranged on the inner side surface of the bearing bush body; and a wear-resistant coating is arranged in the concave part. This both antifriction and wear-resisting axle bush is through setting up the depressed part to pack the wear-resistant coating in the depressed part, make axle bush and slide bearing rotate the contact process and reduce local friction point, coefficient of friction reduces, increases the bearing capacity, has excellent wear resistance, and keeps antifatigue and anti-seize characteristic for a long time. The plurality of concave parts form a large-area wear-resistant coating, so that the wear of the bearing bush is reduced, the service function of the bearing bush is prolonged, the energy consumption is reduced, and the running speed is stable.

Description

Wear-reducing and wear-resisting bearing bush

Technical Field

The utility model relates to the technical field of bearing bushes, in particular to an antifriction and wear-resistant bearing bush.

Background

The bearing bush (bearing shell) is a part of a sliding bearing which is contacted with a shaft neck, is in a bush-shaped semi-cylindrical surface, is very smooth, is generally made of wear-resistant materials such as bronze, antifriction alloy and the like, can be made of wood, engineering plastics or rubber under special conditions, has an integral type and a split type, is generally called a shaft sleeve (Bushing), and is in clearance fit with the shaft neck and generally does not rotate along with the shaft.

In order to meet the high performance index of modern internal combustion engines, the requirements on the bearing bush of the internal combustion engine are higher and higher, the running-in performance needs to be further improved, new products of the bearing bush in China need to be developed, and the thin-wall bearing bush needs to have good wear resistance, small friction coefficient and long service life in use.

SUMMERY OF THE UTILITY MODEL

Based on the above, the utility model aims to provide an antifriction and wear-resistant bearing bush which has the advantages of good wear resistance, small friction coefficient and long service life.

The utility model provides a wear-reducing and wear-resisting bearing bush, which comprises:

the bearing bush comprises a bearing bush body, wherein the bearing bush body is in a semi-circular arc shape, and a plurality of concave parts are arranged on the inner side surface of the bearing bush body;

and a wear-resistant coating is arranged in the concave part.

Furthermore, the concave part is a hook groove.

Furthermore, the hook groove penetrates through the length direction of the bearing bush body.

Furthermore, the hook grooves are uniformly arranged along the width direction of the bearing bush body.

Furthermore, the hook grooves are uniformly arranged.

Furthermore, the hook groove is one of a V-shaped groove, a T-shaped groove and a trapezoidal groove.

Furthermore, the surface of the wear-resistant coating accounts for more than or equal to 80% of the inner side surface of the bearing bush body.

Further, the outer surface of the wear-resistant coating is flush with the inner side surface.

Compared with the prior art, the antifriction and wear-resistant bearing bush has the following beneficial effects:

1. according to the antifriction and wear-resistant bearing bush provided by the embodiment of the utility model, the plurality of hook grooves are formed in the inner side surface of the bearing bush, and the wear-resistant coating is filled in each hook groove, so that local friction points are reduced, the friction coefficient is reduced, the bearing capacity is increased in the rotating contact process of the bearing bush and the sliding bearing, the antifriction and wear-resistant bearing bush has excellent wear resistance, and the anti-fatigue and anti-seizure characteristics are maintained for a long time.

2. According to the anti-abrasion and wear-resistant bearing bush provided by the embodiment of the utility model, the wear-resistant coating with a larger area is formed by arranging the hook grooves, so that the wear of the bearing bush is reduced, the service function of the bearing bush is prolonged, the energy consumption is reduced, and the running speed is stable.

Drawings

Figure 1 is a schematic view of a bearing shell which is both wear reducing and wear resistant in accordance with an embodiment of the present invention;

figure 2 is a partial schematic view of a wear reducing and resistant bearing shell of figure 1;

FIG. 3 is a schematic cross-sectional view of a groove of a wear reducing and wear resistant bearing shell in accordance with an embodiment of the present invention;

FIG. 4 is a schematic structural view of the antifriction and wear-resistant bearing shell filled with the wear-resistant coating of FIG. 3;

FIG. 5 is a schematic view of a wear reducing and resistant bearing shell according to an embodiment of the present invention;

in the figure: 1. a bearing bush body; 2. a mold; 3. a cutter bar; 4. boring cutter; 11. positioning blocks; 12. hooking a groove; 13. and (3) wear-resistant coating.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

As shown in fig. 1 to 4, an anti-wear and wear-resistant bearing bush according to an embodiment of the present invention includes a bearing bush body 1, the bearing bush body 1 is in a semi-circular arc shape, a positioning block 11 is disposed at a top end of the bearing bush body 1, a plurality of recessed portions are disposed on an inner side surface of the bearing bush body 1, and a wear-resistant coating 13 is disposed in each recessed portion.

Specifically, in the present embodiment, the recessed portion is a hook groove 12, and the hook groove 12 may be one of a V-shaped groove, a T-shaped groove, and a trapezoidal groove. In other examples, the recess may be a round hole, a square hole, or a hole of other shape with a certain depth.

Preferably, the plurality of hook grooves 12 are uniformly and densely distributed on the inner side surface of the bearing shell body 1 along the width direction of the bearing shell body 1, and the hook grooves 12 are arranged along the length direction of the bearing shell body 1 and penetrate through from one end to the other end of the inner side of the bearing shell. In another example, the hook grooves 12 may also be distributed in other arrangement directions, such as being inclined or perpendicular to the circumferential direction of the bearing shell body 1.

The wear-resistant coating 13 is filled in the inner cavity of the hook groove 12 and forms a wear-resistant coating surface, and each wear-resistant coating surface is flush with the inner side surface of the bearing bush body 1, so that a smooth surface is formed finally. Preferably, the sum of the surface areas of the plurality of wear-resistant coatings 13 accounts for 80% or more of the inner side surface of the bearing shell body 1.

The wear-resistant coating 13 is a coating which is applied to the inner surface of the bearing shell body 1 and has a function of protecting a base material of an equipment component, and specifically can be a common wear-resistant coating such as an adhesion-resistant wear-resistant coating, a wear-resistant particle wear-resistant coating, a fatigue wear-resistant coating, an erosion wear-resistant coating and the like. Which may be filled in the hook groove 12 by using a thermal spraying technique or a chemical bonding technique. And the wear-resistant coating 13 reduces the friction coefficient of the bearing bush, reduces the friction force between the inner side surface of the bearing bush and the surface of the sliding bearing, and further reduces the wear of the sliding bearing to the bearing bush.

Fig. 5 is a schematic view of a processing apparatus for a hook groove in an antifriction and wear-resistant bearing shell according to an embodiment of the present invention, and as shown in fig. 5, a positioning block 11 at the top end of a bearing shell body 1 is matched with a positioning groove of a mold 2, so that the bearing shell body 1 is fixedly mounted on the mold 2. When in processing, the bearing bush body 1 is pressed in the die 2, the cutter bar 3 drives the boring cutter 4 to do circular motion, the shape of the hook groove 12 is bored on the inner side surface of the bearing bush body 1, then the wear-resistant coating 13 is injected into the hook groove 12, and then the inner side surface is finely bored to form a smooth surface.

The working principle of the antifriction and wear-resistant bearing bush of the embodiment of the utility model is as follows:

before the bearing bush is installed, a proper amount of lubricating oil is coated, then the lubricating oil is installed on the outer surface of the sliding bearing, the bearing bush does not rotate and is not dislocated, a large-area uniform and stable oil film is formed between the inner side surface of the bearing bush and the sliding bearing due to the rotation of the sliding bearing in the working process, and the wear-resistant coating 13 on the inner side surface of the bearing bush enables the inner side surface of the bearing bush and the surface of the sliding bearing to rotate and contact to reduce local friction points, so that the friction between the inner side surface of the bearing bush and the surface of the sliding bearing is reduced, and the wear of the inner side surface of the bearing bush is reduced.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the novel features of the present application.

Claims

1. A wear reducing and resistant bearing shell, comprising:

and a wear-resistant coating is arranged in the concave part.

2. A wear reducing and resistant bearing shell according to claim 1, wherein:

the depressed part is a hook groove.

3. A wear reducing and resistant bearing shell according to claim 2, wherein:

the hook groove penetrates through one end to the other end of the bearing bush body.

4. A wear reducing and resistant bearing shell according to claim 3, wherein:

the hook groove is arranged along the length direction of the bearing bush body.

5. A wear reducing and resistant bearing shell according to claim 2, wherein:

the hook grooves are uniformly arranged along the width direction of the bearing bush body.

6. A wear reducing and resistant bearing shell according to claim 2, wherein:

the hook groove is one of a V-shaped groove, a T-shaped groove and a trapezoidal groove.

7. A wear reducing and resistant bearing shell according to claim 1, wherein:

the surface of the wear-resistant coating accounts for more than or equal to 80% of the inner side surface of the bearing bush body.

8. A wear reducing and resistant bearing shell according to claim 1, wherein:

the outer surface of the wear-resistant coating is flush with the inner side surface.