CN2138853Y

CN2138853Y - Anti-dust, vibration-proof cushion cover of motor

Info

Publication number: CN2138853Y
Application number: CN 92236473
Authority: CN
Inventors: 陈元祥
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-10-19
Filing date: 1992-10-19
Publication date: 1993-07-21
Anticipated expiration: 2002-10-19

Abstract

The utility model relates to an anti-dust, vibration-proof cushion cover of a motor. A cushion cover with high elasticity is sheathed on a bearing seat near the centers of a front end and a back end of an outer shell of the motor. A through hole of the rotary shaft is arranged on one end surface of one side of the cushion cover. A concave chamber which just can be sheathed in a bearing is arranged on the end surface of the other side. A bearing sleeve which supports the rotary shaft of the motor is arranged in the middle of a concave chamber. Therefore, the buffering is generated between the bearing and the bearing seat. The noise caused by the rotation of the rotary shaft to generate can be sufficient absorbed, and the dust on the outer part is efficiently isolated to invade in a bearing rolling ball slot or the inner part of the motor, because the end surface of the cushion cover covers the bearing properly.

Description

Anti-dust, vibration-proof cushion cover of motor

The utility model relates to a kind of shockproof, dustproof cushion cover of machine shaft.

Traditional machine shaft bearing, all be to be directly installed in the bearing pedestal default on the electric machine casing, between the two without any intermediary, and the material of bearing and bearing pedestal all is again a rigid material, therefore, during motor rotation, the microseism phenomenon that its rotating shaft produces all is directly delivered to bearing pedestal (being housing), makes electric machine casing produce the microseism phenomenon thereupon, thereby therefore produces the noise of running.Moreover the rotating shaft through hole of electric machine casing is not generally done any sealing measure, and therefore, during running, the outer dust of housing just can be invaded the ball grooves that stains bearing, even, invade motor internal.Like this, just may shorten the life-span of bearing, also may directly cause the induction conduction between motor internal rotor and the electrode, life-span of motor is produced very adverse influence.

The high resiliency that the purpose of this utility model provides a kind of machine shaft is shockproof, dustproof cushion cover and improve the defective of prior art.

The utility model high resiliency cushion cover of socket and realizing between motor inner pedestal and bearing, make the vibrations that produce in the rotating shaft running, can be able to fully absorb buffering by this cushion cover, the unlikely housing that is directly delivered to is with the noise of eliminating shell vibrating and producing because of vibrations.Again because an end face of the present utility model is designed to the circular hole that passes rotating shaft just, the Zhou Bianhuan film in this hole, the ball grooves of lucky energy capping bearing, the dust that can intercept hull outside effectively stains or invades motor internal, thus the cleaning of the ball grooves of maintenance bearing and motor internal, clean.

Describe the utility model in detail below in conjunction with drawings and Examples.

Fig. 1 is the three-dimensional exploded view of assembling embodiment of the present utility model.

As shown in the figure, the utility model is between the bearing pedestal 14 and its bearing 12,13 of housing 11 internal preset of motor 10, high resiliency cushion cover 15 of socket, 151 centers, one side end face of this cushion cover 15 have the through hole 152 than the slightly larger in diameter of rotating shaft 16, form a ring film around the through hole 152, its opposite side end face has the lucky alcove 153 that can be inserted in bearing 12.This cushion cover 15 is socketed between bearing 12,13 and the bearing pedestal 14, and the union end 161 of then rotating shaft 16 can extend housing 11 outsides from above-mentioned through hole 152, and the Zhou Bianhuan film of cushion cover 15 just can be sealed on the outside of the ball grooves 121,131 of bearing 12,13 just.

Like this, cushion cover 15 can often keep good elastic buffer function because of being assemblied between bearing 12,13 and the bearing pedestal 14.When machine shaft 16 shook because of running, cushion cover 15 can fully absorb this seismic wave, avoids shaking the vibrations and the concurrent noise that directly reach housing 11 and produce whole motor.In addition, the ring film of cushion cover 15 gives suitable capping to the ball grooves 121,131 of bearing, can avoid dust attached on the pearl groove or invade motor internal, has the effect of protection motor cleaning.

In a word, the utility model is simple in structure, and manufacturing, installation all are easy to, but has the remarkable result of dustproof, shockproof and isolated dust pollution.

Claims

1, shockproof, the dustproof cushion cover of a kind of motor, a high resiliency cushion cover that it is characterized in that socket between bearing pedestal default in electric machine casing and the shaft bearing, the center, one side end face of this cushion cover has the through hole than rotating shaft slightly larger in diameter, can form the ring film around the through hole, the opposite side end face has the lucky alcove that can be inserted in bearing; During socket, the union end of rotating shaft extends hull outside from above-mentioned through hole, and the Zhou Bianhuan film of cushion cover can be sealed on the ball grooves outside of bearing just.