CN202872523U

CN202872523U - Motor end cover

Info

Publication number: CN202872523U
Application number: CN 201220545248
Authority: CN
Inventors: 何斌
Original assignee: TAIZHOU CHUANGPU ELECTROMECHANICAL CO Ltd
Current assignee: TAIZHOU CHUANGPU ELECTROMECHANICAL CO Ltd
Priority date: 2012-10-15
Filing date: 2012-10-15
Publication date: 2013-04-10
Anticipated expiration: 2022-10-15

Abstract

The utility model provides a motor end cover, which belongs to the electromechanical technical field. The motor end cover solves the problem that a bearing is prone to damage when the bearing is placed inside an end cover in the prior art for installation and fixation. The motor end cover provided by the utility model comprises a cylindrical cover body. The central part of the cover body is provided with a bearing chamber with an annular cavity. A gas outlet channel making the bottom and the top of the bearing chamber communicated is arranged on the inner wall of the bearing chamber. The motor end cover provided by the utility model can protect the bearing from being damaged when the bearing is placed in the end cover for installation and fixation. Meanwhile, the motor end cover can make the service lifetime of the bearing prolonged.

Description

A kind of end cap of motor

Technical field

The utility model belongs to the mechanical ﹠ electrical technology field, has related to a kind of end cap of motor.

Background technology

At present, the end cap of motor generally adopts the aluminium material to cast, and comprises front end housing and rear end cap, and the middle part of front end housing has axis hole, and axis hole is passed in the rotating shaft of motor one end; And the housing of rear end cap and motor connects and composes sealing, has one with the bearing chamber in chamber at the middle part of rear end cap, be arranged with bearing in the rotating shaft of the motor other end, this bearing is arranged in the bearing chamber and closely cooperates with bearing chamber formation, therefore, the end cap of motor not only has the effect of sealed electric-motor housing cavity, prevents that dust from entering into cavity, also provides support the location for the rotating shaft of motor simultaneously.

The both ends of bearing have the rubber ring of sealed bearing, in installation process, to be inserted straight in the bearing chamber by cooperating of consisting of of bearing and machine shaft, air in this bearing chamber is gradually reduced, and compressed air reacts on the bearing, this compressed air to the extruding of bearing rubber ring so that the ball gap smaller in the bearing causes phase mutual interference and resistance between the ball, when bearing was in bad operating state for a long time, bearing will damage.

Summary of the invention

There are the problems referred to above in the utility model for existing technology, has proposed a kind of end cap of protecting the motor that the bearing in the end cap is not damaged.

The utility model is realized by following technical proposal, a kind of end cap of motor comprises the lid of tubular, is provided with the bearing chamber with annular chamber at the middle part of lid, it is characterized in that, have the bottom of connection bearing chamber and the outlet passageway at top on the inwall of described bearing chamber.

The annular chamber of bearing chamber is used for installing bearing, and the inwall of bearing chamber and the outer wall of bearing closely cooperate, and machine shaft is fixed in the dead eye; Bearing and rotating shaft are being installed in the process of bearing chamber, and the air of bearing chamber can be compressed, and this compressed air can damage bearing to the extruding of bearing rubber ring, enough timely compressed air is discharged from the inwall of bearing chamber and the passage capable of being of giving vent to anger is set; Air compressing process in the bearing chamber is continued until the bottom of bearing chamber from the top that bearing and rotating shaft are placed into bearing chamber; Therefore corresponding, this outlet passageway extends to the top from the bottom of bearing chamber; Simultaneously, because the existence of outlet passageway so that the air pressure in the bearing chamber and the air pressure in the inner cavity of motor shell keep balance, can be good at protecting bearing not damaged.

In the end cap of above-mentioned a kind of motor, described outlet passageway comprises the gas leakage groove that is opened in inner wall surface, and above-mentioned gas leakage groove extends to the top from the bottom of bearing chamber.Offer the gas leakage groove at the inwall of bearing chamber, technique is simple, can easily air be discharged from bearing chamber simultaneously.

In the end cap of above-mentioned a kind of motor, described gas leakage groove is linearity or arc.

In the end cap of above-mentioned a kind of motor, described outlet passageway comprises the exhaust duct that is opened in the inwall, and the air inlet of above-mentioned exhaust duct is in the bottom of bearing chamber, and the gas outlet of above-mentioned exhaust duct is at the top of bearing chamber.

Compared with prior art; the end cap of this motor is offered outlet passageway at the inwall of bearing chamber; in the compressed process of air in bearing chamber; this compressed air can be discharged from the annular chamber of bearing chamber by gas leakage groove or exhaust duct; thereby the protection bearing is not damaged, and has improved the useful life of bearing.

Description of drawings

Fig. 1 is structural representation of the present utility model.

Among the figure, 1, lid; 2, bearing chamber; 3, gas leakage groove.

Embodiment

Below be specific embodiment of the utility model, and by reference to the accompanying drawings the technical solution of the utility model be further described, but the utility model is not limited to these embodiment.

The end cap of a kind of motor as shown in Figure 1 comprises the lid 1 of tubular, is provided with the bearing chamber 2 with annular chamber at the middle part of lid 1, has the bottom that is communicated with bearing chamber 2 and the outlet passageway at top on the inwall of described bearing chamber 2.When the air in bearing chamber 2 is compressed, by outlet passageway compressed air is discharged from the annular chamber of bearing chamber 2, avoided this compressed air reaction all on the bearing, damage bearing.

Outlet passageway comprises the gas leakage groove 3 that is opened in inner wall surface, and above-mentioned gas leakage groove 3 extends to the top from the bottom of bearing chamber 2.Adopt this programme, not only can effectively compressed air be discharged, in the actual course of processing, this technique is also very simple simultaneously.Certainly, all right another kind of scheme of outlet passageway, described outlet passageway comprises the exhaust duct that is opened in the inwall, and the air inlet of above-mentioned exhaust duct is in the bottom of bearing chamber 2, and the gas outlet of above-mentioned exhaust duct is at the top of bearing chamber 2.In addition, no matter be gas leakage groove or exhaust duct all can adopt linearity or arc.

The end cap of this motor is offered outlet passageway at the inwall of bearing chamber 2; in the compressed process of air in bearing chamber 2; this compressed air can be discharged from the annular chamber of bearing chamber 2 by gas leakage groove 3 or exhaust duct, thereby the protection bearing is not damaged, and has improved the useful life of bearing.

Specific embodiment described herein only is to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.

Although this paper has more used the terms such as lid 1, bearing chamber 2, gas leakage groove 3, do not get rid of the possibility of using other term.Using these terms only is in order to describe more easily and explain essence of the present utility model; They are construed to any additional restriction all is contrary with the utility model spirit.

Claims

1. the end cap of a motor, the lid (1) that comprises tubular, be provided with the bearing chamber (2) with annular chamber at the middle part of lid (1), it is characterized in that, have the bottom that is communicated with bearing chamber (2) and the outlet passageway at top on the inwall of described bearing chamber (2).

2. the end cap of a kind of motor as claimed in claim 1 is characterized in that, described outlet passageway comprises the gas leakage groove (3) that is opened in inner wall surface, and above-mentioned gas leakage groove (3) extends to the top from the bottom of bearing chamber (2).

3. the end cap of a kind of motor as claimed in claim 2 is characterized in that, gas leakage groove (3) is linearity or arc.

4. the end cap of a kind of motor as claimed in claim 1, it is characterized in that, outlet passageway comprises the exhaust duct that is opened in the inwall, and the air inlet of above-mentioned exhaust duct is in the bottom of bearing chamber (2), and the gas outlet of above-mentioned exhaust duct is at the top of bearing chamber (2).