CN2504432Y

CN2504432Y - Improved self-lubricating bearing

Info

Publication number: CN2504432Y
Application number: CN 01233375
Authority: CN
Inventors: 陈荣明; 曾四味
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-08-15
Filing date: 2001-08-15
Publication date: 2002-08-07
Anticipated expiration: 2011-08-15

Abstract

An improved self-lubricating bearing is a cylinder in shape and is provided with an axis hole in the middle. The utility model is characterized in that the wall of the axis hole is at least provided with one radial oil storage groove. The utility model can raise the lubrication level to reduce noises, and raise the working life.

Description

Improved self-lubricating bearing

One, technical field:

The utility model relates to a kind of bearing, relates in particular to a kind of its lubricity that improves, and with the reduction noise, and improves the improved self-lubricating bearing in working life.

Two, background technique:

Self-lubricating bearing is to be applied to usually in the rotating shaft of miniature motor, and the self-lubricating bearing of commonly using 10 (as shown in Figure 1) is mainly made by a kind of metal powder metallurgy, generally is one cylindric, and its central authorities are provided with an axis hole 11, establishes a rotating shaft 20 for placing to hold.This self-lubricating bearing of commonly using 10 oozes in axis hole 11 top layer pores via the vacuum pressure injection and stays with lubricant oil, and when making rotating shaft 20 be positioned at axis hole 11 high speed rotating, lubricant oil is able to be oozed out by axis hole 11 top layer pores again, to reach lubricated purpose.Though the above-mentioned self-lubricating bearing of commonly using 10 utilizes vacuum pressure injection mode that lubricant oil is oozed and stays in the pore of the top layer of axis hole 11, can bleed back when rotating shaft 20 high speed rotating then, to reach lubricated purpose.But, because it is also few to ooze the lubricant oil that stays in axis hole 11 top layer pores, the high temperature that is produced when therefore being easy to because of rotating shaft 20 high speed rotating volatilizees, so that cause and lose oily phenomenon, and the generation noise, even under serious mistake oil situation, make rotating shaft 20 bundle take place extremely, and then reduce its working life because of the high temperature that high speed rotating produced.

Three, summary of the invention:

The purpose of this utility model is, above-mentionedly commonly uses the shortcoming that self-lubricating bearing exists for improving, and a kind of its lubricity that improves is provided, and reducing noise, and improves the improved self-lubricating bearing in working life.

The purpose of this utility model is realized by following technological scheme.

A kind of improved self-lubricating bearing generally is one cylindric, and its central authorities are provided with an axis hole, it is characterized in that being provided with above together radially oil storage tank at least on the hole wall of described axis hole.

The utility model can improve its lubricity, with the reduction noise, and improves working life.

Four, description of drawings:

Fig. 1 commonly uses the self-lubricating bearing insight structural map.

Fig. 2 is an insight structural map of the present utility model.

Five, embodiment:

As shown in Figure 2, the utility model self-lubricating bearing 30 also is to be made by a kind of metal powder metallurgy, generally be one cylindric, its central authorities are provided with an axis hole 31, establish a rotating shaft 40 for placing to hold, and ooze in axis hole 31 top layer pores via the vacuum pressure injection and to stay lubricant oil, its structure characteristics is to be provided with at least on the hole wall of axis hole 31 above together radially oil storage tank 32, make in the oil storage tank 32 and can be detained lubricant oil, the lubricant oil that is detained by oil storage tank 32, remedying, and improve the lubricity of rotating shaft 40 when high speed rotating, and reduce noise by the axis hole 31 top layer pores not enough lubricant oil that refluxed, and be radially setting by oil storage tank 32, the lubricant oil that can prevent to be stranded in the oil storage tank 32 oozes out with the high speed rotating of rotating shaft 40, can effectively prevent to lose oily phenomenon, and then improve its working life.

From the above and embodiment shown in the drawings as can be known, the utility model except with commonly use self-lubricating bearing and can in axis hole 31 top layer pores, ooze via the vacuum pressure injection equally and stay lubricant oil, when rotating shaft 40 high speed rotating, can reflux then and ooze out, to reach outside the lubricated purpose, be primarily characterized in that, at least be provided with above together radially oil storage tank 32 on the hole wall of axis hole 31, make and be detained lubricant oil in the oil storage tank 32, the lubricant oil that is detained by oil storage tank 32, can remedy by the axis hole 31 top layer pores not enough lubricant oil that refluxed, and the lubricity of raising rotating shaft 40 when high speed rotating, and reduction noise, and can effectively prevent to lose oily phenomenon, and then improve working life.

In sum, technological means that the utility model used and structure thereof really can reach its intended purposes, hold with the self-lubricating of commonly using and compare, and really have significant practicability and progressive, and really unprecedented, meet novel patent requirement, so file an application in accordance with the law.

The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment did.