CN2451797Y

CN2451797Y - Thin wall, copper-base filling composite self-lubricating bearing

Info

Publication number: CN2451797Y
Application number: CN 00237465
Authority: CN
Inventors: 刘福有; 关振国; 董沛民; 王换栋; 孙承玉
Original assignee: COMPOSITE MATERIALS BEARING Co Ltd LIAOYUAN CITY
Current assignee: COMPOSITE MATERIALS BEARING Co Ltd LIAOYUAN CITY
Priority date: 2000-07-11
Filing date: 2000-07-11
Publication date: 2001-10-03
Anticipated expiration: 2010-07-11

Abstract

The utility model discloses a thin wall, copper-base filling composite self-lubricating bearing, which adopts a thin wall of which thickness is from 1.0 mm to 5.0 mm. blind circular holes (blind holes) are evenly distributed the working face of the utility model, and the total area of the holes occupies 25 percent-35 percent of the surface area of a bearing wall. A hole diameter is from 2 mm to 10 mm, and a hole depth is from 0.7 mm to 3.0 mm. the inner parts of the blind holes are provided with spherical bronze powder or tree-fork-shaped bronze powder of tin bronze of 40 meshes to 150 meshes, and are refilled with solid lubricant. The bearing has the characteristics of thin wall, small size, light weight, small friction coefficient, high bearing capacity and wide applicable temperature range and self-lubrication range. Because the thickness of the bearing wall is reduced, the material is saved and the cost is reduced.

Description

Thin-walled copper base is filled composite self-lubricating bearing

The utility model relates to a kind of thin-walled copper base and fills composite self-lubricating bearing, belongs to mechanical.

Existing composite bearing is bigger because of its friction factor, and bearing capacity is general, and the Applicable temperature scope is narrower, replaced by embedded bearing in some operating mode occasions, and inlaying bearing adopts through hole packing lubrication agent, bearing wall thickness, waste material, cost height.

The utility model is at the problems referred to above, provide a kind of thin-walled copper base to fill composite self-lubricating bearing, it had both had that friction factor is little, bearing capacity is big, wear-resisting property is good, broad application temperature range and selflubricating characteristics, and bearing wall thickness volume is little, in light weight, economical with materials reduces cost because of reducing again.

Task of the present utility model is finished as follows: this bearing adopts 1.0～5.0mm thin-walled, and the obstructed circular hole (blind hole) that on its working surface, evenly distributes, the gross area of hole count accounts for 25～35% of bearing wall surface area, aperture 2～10mm, hole depth 0.7～3.0mm, spreading 40～150 purpose tin bronze spherical copper powders or branching shape copper powder recharge solid lubricant in blind hole; The described obstructed circular hole that is distributed on the bearing working face also can be the blind hole of other geometrical shape.

The utility model adopts even distribution blind hole on bearing thin-walled working surface, and in blind hole spreading tin bronze powder, recharge solid lubricant, through series sinter technology, make formation certain hole in copper powder surface in the blind hole, make solid lubricant by hole and copper powder strong bonded, making this thin-walled copper base filling composite self-lubricating bearing have wall approaches, volume is little, in light weight, friction factor is little, bearing capacity is big, wear-resisting property is good, broad application temperature range and selflubricating characteristics, reduce cost this novel low speed revolution that is applicable to heavy duty again because of reducing bearing wall thickness economical with materials, swing, to-and-fro motion etc. are difficult for the applying working condition condition of oiling maintenance.

Below in conjunction with accompanying drawing the utility model is done and to be described in further detail:

Fig. 1 is the utility model overall structure sectional view

Fig. 2 is the utility model blind hole amplification view

With reference to accompanying drawing 1,2, this bearing is selected the thick tin bronze of 3mm, aluminum bronze or phosphor bronze thin-walled [1] for use, and on its working surface even distribution blind hole [2], the gross area of hole count accounts for 30% of bearing wall surface area, aperture 6mm, hole depth 1.8mm adopts 100 purpose tin bronze spherical copper powders or branching shape copper powder spreading in blind hole, recharges solid lubricant [4]; The described obstructed circular hole that is distributed on the bearing working face also can be the blind hole of other geometrical shape.

Claims

1, a kind of thin-walled copper base is filled composite self-lubricating bearing, it adopts prior art solid lubricant [4], it is characterized in that: this bearing adopts 1.0～5.0mm thin-walled [1], and the obstructed circular hole (blind hole) [2] that on its working surface, evenly distributes, the gross area of hole count accounts for 25～35% of bearing wall surface area, aperture 2～10mm, hole depth 0.7～3.0mm, spreading 40～150 purpose tin bronze spherical copper powders or branching shape copper powder [3] recharge solid lubricant [4] in blind hole.

2, thin-walled copper base as claimed in claim 1 is filled composite self-lubricating bearing, and it is characterized in that: the described obstructed circular hole [2] that is distributed on the bearing working face also can be the blind hole of other geometrical shape.