CN201027809Y

CN201027809Y - Integral floating bearing

Info

Publication number: CN201027809Y
Application number: CNU2007200032648U
Authority: CN
Inventors: 陈浩
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-02-02
Filing date: 2007-02-02
Publication date: 2008-02-27
Anticipated expiration: 2017-02-02

Abstract

The utility model relates to an integrated float bearing which is a hollow column and comprises two sections connected together including a main shaft cavity 1 and shaft end cavities 2 on both ends thereof. The integrated float bearing provided by the utility model integrates the two float bearings in the prior art into a whole body, when a medium body is processed without processing two retaining ring slots inside an interior hole, and when the bearing is assembled without assembling retaining rings, thereby saving two float retaining rings, and most importantly ensuring the coaxial rotation of the bearing, decreasing the friction surface, keeping the balance of the rotor, and ensuring both the usage efficiency and the life span of a supercharger, meanwhile, the utility model also simplifies both the processing techniques of the medium body and the assembly techniques of the supercharger, and decreases the quantity of the parts of the supercharger.

Description

A kind of integral float shaft holds

Technical field

The utility model relates to the bearing in a kind of mechanical field, and particularly a kind of integral float shaft holds.

Background technique

As shown in Figure 1, at present, what adopt between known supercharger rotor and the intermediate is two floating bearings, its structure is that the endoporus at intermediate digs two circlip grooves, in circlip groove, load onto back-up ring earlier, load onto floating bearing at two ends respectively again, load onto rotor then.The structure of this floating bearing, because of two ends not in one, and the friction area of floating bearing increases, when the pressurized machine high speed rotating, cause bearing two ends decentraction easily, thereby destroy the balance of rotor, hinder rotor rotation, reduce the life-span and the efficient of pressurized machine, make the assembly technology very complicated of intermediate processing technology and pressurized machine simultaneously, component increase.

Summary of the invention

The technical problems to be solved in the utility model is intended to overcome the deficiency of above-mentioned prior art, provides a kind of integral float shaft to hold, and this floating bearing face of can reducing friction promptly keeps balancing rotor.

The technical solution adopted in the utility model is:

A kind of integral float shaft holds, and described floating bearing is a hollow cylinder, and described floating bearing is formed by connecting for the axle head chamber 2 at axle main cavity 1 and two ends thereof.

Compared with the prior art floating bearing of the present utility model has following good effect: original two floating bearings are designed to an integral body, during the work in-process mesosome, do not need to process two circlip grooves in the endoporus, do not need to assemble back-up ring during assembling, reduce by two floating bearing back-up rings, the most important thing is to guarantee that bearing is concentric when rotated, the face of reducing friction, keep balancing rotor, guarantee the utilization efficiency and the working life of pressurized machine; Simplify the processing technology of intermediate and the assembly technology of pressurized machine simultaneously, reduce the pressurized machine component.

Description of drawings

Fig. 1 represents the structural representation of the floating bearing used always;

Fig. 2 represents the structural representation of floating bearing of the present utility model.

Embodiment

With reference to accompanying drawing, will be described in detail embodiment of the present utility model.

As shown in Figure 2, integral float shaft of the present utility model holds and is hollow cylinder, and described floating bearing holds axle main cavity 1 and the two ends thereof of a main body for its inside the axle head chamber 2 that holds shaft end for its inside is formed by connecting, and the parts of bearing effect are promptly really played in described axle head chamber.When axle rotates, the frictional force that can give birth between axle and the bearing, when the two ends of axle were respectively equipped with a bearing, existence that might frictional force made two bearing decentraction, and the decentraction of bearing just may cause the imbalance of axle rotation because of its support effect to axle; And therefore floating bearing of the present utility model makes that because of being overall structure the two ends of axle keep with one heart always, thereby avoids above-mentioned defective.Further, floating bearing commonly used need be fixed with circlip groove, and floating bearing of the present utility model, because of its overall structure, only need to get final product in the endoporus with its embedding pressurized machine intermediate, can guarantee that this floating bearing is fixed in the endoporus, thereby save the course of working of circlip groove.

Further, during integral float shaft of the present utility model held, preferred described axle main cavity and axle head chamber were cylindrical body, and promptly the shape with axle is consistent, and axle institute's complementary space in this integral float shaft holds can not wasted too much so; Wherein, more preferably adopt the internal diameter of the internal diameter of described axle main cavity greater than described axle head chamber, promptly the internal diameter at axle two ends is less than the middle internal diameter of axle.

Claims

1. an integral float shaft holds, and described floating bearing is a hollow cylinder, it is characterized in that described floating bearing is formed by connecting for the axle head chamber (2) at axle main cavity (1) and two ends thereof.

2. integral float shaft according to claim 1 holds, and it is characterized in that described axle main cavity and axle head chamber are cylindrical body.

3. hold according to claim 1 or the described integral float shaft of 2 arbitrary claims, it is characterized in that the internal diameter of the internal diameter of described axle main cavity greater than described axle head chamber.