CN211501352U - Novel trailer hangs self-lubricating bush - Google Patents

Abstract

The utility model discloses a novel trailer hangs self-lubricating bush, including the bush body, the inner wall of bush body is equipped with radial annular groove and the radial annular groove's of perpendicular to axial recess respectively, and the inner wall of bush body has been seted up the card and has been put the groove, and the inside card of card putting the groove has put the graphite strip, and the inboard of bush body is fixed and is equipped with the wearing layer, the beneficial effects of the utility model are that: the bushing body made of the high-strength brass material has the advantages of high strength, long service life and the like, lubricating grease does not need to be injected through the arranged embedded graphite strips, the maintenance period is long, the operation efficiency is greatly increased, the maintenance cost is reduced, and the social benefit is obviously improved; the radial annular groove and the axial groove perpendicular to the radial annular groove are arranged, so that the contact area between the inner wall of the bushing and a workpiece can be effectively reduced, the friction force between the bushing and the workpiece is reduced, the abrasion of the bushing in the use process is reduced to a certain extent, and the service life of the bushing is prolonged.

Description

Novel trailer hangs self-lubricating bush

Technical Field

The utility model relates to a bush, in particular to novel trailer hangs self-lubricating bush belongs to composite bushing technical field.

Background

The composite bush is a rolled composite bush which takes a steel plate as a substrate, spherical bronze powder is sintered in the middle of the steel plate, and a mixture of polytetrafluoroethylene and lead is rolled on the surface of the steel plate; the composite bushing is widely adopted in the current trailer suspension balance arm, and the composite bushing is short in service life due to the fact that the wall thickness of the composite bushing is thin and the friction coefficient of the inner surface is large, so that the composite bushing becomes a main quick-wear part for trailer suspension, lubricating grease needs to be regularly and frequently filled, operation efficiency is low, and maintenance cost is high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel trailer hangs self-lubricating bush to the composite bushing wall thickness who proposes in solving above-mentioned background art, the coefficient of internal surface friction is great, causes the problem of its short-lived.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a novel trailer hangs self-lubricating bush, includes the bush body, the inner wall of bush body is equipped with radial annular groove and the radial annular groove's of perpendicular to axial recess respectively, the card groove has been seted up to the inner wall of bush body, the graphite strip has been put to the inside card in card groove, the inboard of bush body is fixed and is equipped with the wearing layer, two oil filler point that are linked together with radial annular groove are seted up to one side of bush body, two the inside of oil filler point is all fixed and is equipped with the hole post.

As a preferred technical scheme of the utility model, the fixed internal thread that is equipped with of inner wall of oil filler point, the fixed external screw thread that is equipped with internal thread matched with in the outside of hole post, the screwdriver edge has been seted up on the top of hole post.

As an optimal technical scheme of the utility model, the wearing layer is made for the copper-zinc alloy material.

As a preferred technical scheme of the utility model, the wearing layer pass through the powder sintering technology and adhere to the inboard of bush body.

As an optimal technical scheme of the utility model, the bush body is made for the brass material of high power.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model relates to a novel trailer hangs self-lubricating bush, the bush body that makes through the high-force brass material has intensity height, advantages such as long-lived, need not to fill lubricating grease through the graphite strip of inlaying that sets up, and the maintenance cycle is long, greatly increased operation efficiency, reduced the maintenance cost, social is showing and is promoting; set up radial annular groove and perpendicular and radial annular groove's axial recess, can effectively reduce the area of contact of bush inner wall and work piece, reduce the frictional force between bush and work piece, reduced the wearing and tearing of bush in the use to a certain extent to prolonged the life of bush, be equipped with the oil filler point on the bush lateral wall simultaneously, conveniently add lubricating oil, lubricated respond well.

Drawings

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

FIG. 2 is a schematic structural view of the wear-resistant layer of the present invention;

fig. 3 is a schematic structural diagram of the hole pillar of the present invention.

In the figure: 1. a bushing body; 2. a wear layer; 3. a radial annular groove; 4. an axial groove; 5. a clamping groove; 6. graphite strips; 7. an oil filler hole; 8. an internal thread; 9. a pore column; 10. a screwdriver blade; 11. and (4) external threads.

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.

Please refer to fig. 1-3, the utility model provides a novel trailer hangs self-lubricating bush, including bush body 1, the inner wall of bush body 1 is equipped with radial annular groove 3 and the axial recess 4 of the radial annular groove 3 of perpendicular to respectively, clamping groove 5 has been seted up to bush body 1's inner wall, graphite strip 6 has been put to clamping groove 5's inside card, bush body 1's inboard is fixed and is equipped with wearing layer 2, two oil filler point 7 that are linked together with radial annular groove 3 are seted up to one side of bush body 1, the inside of two oil filler point 7 is all fixed and is equipped with hole post 9 for seal oil filler point 7.

Preferably, an internal thread 8 is fixedly arranged on the inner wall of the oil filling hole 7, an external thread 11 matched with the internal thread 8 is fixedly arranged on the outer side of the hole column 9, so that the hole column 9 can be conveniently fixed, the oil filling hole 7 is sealed, and a screwdriver blade 10 is arranged at the top end of the hole column 9, so that the hole column 9 can be conveniently detached by a screwdriver; the wear-resistant layer 2 is made of copper-zinc alloy; the wear-resistant layer 2 is attached to the inner side of the lining body 1 through a powder sintering process, the powder sintering process is a process of obtaining a material or a product with required strength and characteristics due to physicochemical actions such as bonding and the like among particles when the wear-resistant layer is heated to a temperature lower than the melting point of the main component, and the powder sintering process can enable the copper-zinc alloy layer to be tightly attached to the inner side of the lining body 1 without falling off, so that the use reliability of the lining is improved; the bush body 1 is made of high-force brass, and the high-force brass has the advantages of high wear resistance, high strength, high hardness, high chemical corrosion resistance and the like.

When in specific use, the utility model relates to a novel trailer suspension self-lubricating bush, firstly, the wear-resistant layer 2 is attached to the inner side of the bush body 1 at the inner side of the bush body 1 through the powder sintering process, the inner wall of the bush body 1 is provided with the radial annular groove 3 and the axial groove 4 vertical to the radial annular groove 3, the contact area between the inner wall of the bush and a workpiece can be effectively reduced, the friction force between the bush and the workpiece is reduced, the abrasion of the bush in the using process is reduced to a certain extent, thereby prolonging the service life of the bush, the inner wall of the bush body 1 is provided with the clamping groove 5, the graphite strip 6 is clamped in the clamping groove 5, no lubricating grease is needed to be injected, the maintenance cycle is long, the operation efficiency is greatly increased, the maintenance cost is reduced, the social benefit is obviously improved, one side of the bush body 1 is provided with two oil injection holes 7, the lubricating grease is, the lubricating effect is good, and the inner wall of the oil filling hole 7 is provided with an internal thread 8 which is in threaded connection with an external thread 11 on the outer wall of the hole column 9 and is used for sealing the oil filling hole 7.

In the description of the present invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Claims (5)

1. The utility model provides a novel trailer hangs self-lubricating bush, includes bush body (1), its characterized in that, the inner wall of bush body (1) is equipped with axial groove (4) of radial annular groove (3) of perpendicular to respectively, the card has been seted up to the inner wall of bush body (1) and has been put groove (5), graphite strip (6) have been put to the inside card of card putting groove (5), the inboard of bush body (1) is fixed and is equipped with wearing layer (2), two oil filler point (7) that are linked together with radial annular groove (3) are seted up to one side of bush body (1), two the inside of oil filler point (7) is all fixed and is equipped with hole post (9).

2. The novel trailer suspension self-lubricating bushing of claim 1, characterized in that: the inner wall of oil filler point (7) is fixed and is equipped with internal thread (8), the outside of hole post (9) is fixed and is equipped with external screw thread (11) with internal thread (8) matched with, screwdriver mouth (10) have been seted up on the top of hole post (9).

3. The novel trailer suspension self-lubricating bushing of claim 1, characterized in that: the wear-resistant layer (2) is made of a copper-zinc alloy material.

4. The novel trailer suspension self-lubricating bushing of claim 1, characterized in that: the wear-resistant layer (2) is attached to the inner side of the bushing body (1) through a powder sintering process.

5. The novel trailer suspension self-lubricating bushing of claim 1, characterized in that: the bushing body (1) is made of high-force brass.

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