Motor end cover

A motor end cover and bearing box technology, applied in electrical components, electromechanical devices, electric components, etc., can solve the problems of bearing seizure, inability to adjust the axial gap between the bearing and the end cover, affecting the life of the fan, etc., to ensure stability and reliability effects

Inactive Publication Date: 2013-12-25
苏州双航机电有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This installation method not only requires tooling, but also cannot adjust the axial clearance between the bearing and the end cover after the installation is completed, which will easily cause bearing seizure and affect the life of the fan.

Method used

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Embodiment Construction

[0015] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0016] refer to Figure 1~2 As shown, the motor end cover includes: an end cover body 1, a ball bearing 5, the center of the end cover body 1 is provided with an annular bearing installation chamber 2, and the annular inner wall of the bearing installation chamber 2 is provided with several positioning protrusions 20 , the motor end cover also includes a bearing box 3, the bearing box 3 is made of soft material, the main body of the bearing box is annular, forming an inner cavity, and its annular outer wall is provided with a number of positioning grooves 30, the positioning The slot 30 matches the positioning protrusion 20 . The bearing box 3 made of soft material is ad...

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Abstract

The invention discloses a motor end cover and relates to the field of permanent magnet direct current micromotors. The motor end cover comprises an end cover body and a ball bearing. An annular bearing installation chamber is arranged in the center of the end cover body. The annular inner wall of the bearing installation chamber is provided with a plurality of locating convex strips. The motor end cover further comprises a bearing box which is made of soft materials. A bearing box body is annular, an inner cavity is formed, and a plurality of locating grooves are formed in the annular outer wall and are matched with the locating convex strips. According to the motor end cover, the axial clearance between the bearing and the end cover body can be adjusted effectively, the ball bearing and the bearing chamber of the end cover no longer make hard contact, and the bearing box can be installed easily and conveniently and enables the bearing to keep good coaxiality and perpendicularity in the operation process.

Description

technical field [0001] The invention relates to the field of permanent magnet DC micro-motors, in particular to a motor end cover. Background technique [0002] The fan is a machine that relies on the input mechanical energy to increase the gas pressure and discharge the gas. It is a driven fluid machine. It mainly relies on the motor to drive the impeller to rotate to generate gas flow to achieve the purpose of use. When the motor rotates, the bearing not only supports the rotation of the shaft and the rotor assembly, but also reduces the friction and wear between the rotor and the stator support, so the bearing plays a very important role. However, the existing motor structure design uses two Ball bearings are installed in combination. After the bearing is installed, the coaxiality with the bearing chamber must be ensured, and the perpendicularity between the center line of the shaft and the end face of the bearing chamber must be ensured. This installation method not onl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K5/173
Inventor 夏雪男
Owner 苏州双航机电有限公司
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