CN214154222U

CN214154222U - Inner rotor motor bearing briquetting structure

Info

Publication number: CN214154222U
Application number: CN202120162554.7U
Authority: CN
Inventors: 姚胜杰; 邓伟; 盛强
Original assignee: Hangzhou Dunli Electric Appliances Co ltd; Hangzhou Dunli Fan Co ltd
Current assignee: Hangzhou Dunli Electric Appliances Co ltd; Hangzhou Dunli Fan Co ltd
Priority date: 2021-01-21
Filing date: 2021-01-21
Publication date: 2021-09-07
Anticipated expiration: 2031-01-21

Abstract

The utility model discloses an inner rotor motor shaft bearing block structure, including end cover, electric motor rotor, bearing, the last bearing that is connected with of electric motor rotor, the bearing is installed in the end cover bearing room on the end cover, and it has the briquetting to press on the bearing, and briquetting and end cover are connected, lie in end cover bearing room terminal surface position on the end cover and be provided with direction boss and spacing boss, and the briquetting is connected between direction boss and spacing boss. The inner rotor motor pressing block structure realizes the pressing effect on the bearing, prevents the bearing from axially jumping, protects the bearing, has a simple structure and does not need to increase the motor installation space; the end face of the end cover bearing chamber is provided with a guide boss and a limiting boss, the guide boss and the limiting boss are arranged on the pressing block, the installation is convenient and effective, and the pressing block can be ensured to be capable of effectively pressing the end face of the bearing outer ring.

Description

Inner rotor motor bearing briquetting structure

Technical Field

The utility model relates to the technical field of electric machine, especially, relate to inner rotor motor bearing briquetting structure.

Background

At present, the end covers and bearings of most inner rotor motors are generally installed in the following ways:

the bearing is arranged in a bearing chamber of the end cover, and no limiting device is arranged in the axial direction, so that the bearing is easy to axially float and damage; the bearing is arranged in the end cover bearing chamber, the axial direction is limited by the elastic retainer ring through the hole, the bearing cannot move, but the end cover bearing chamber needs to be lengthened, so that the installation space is increased; the bearing is arranged in the end cover bearing chamber and is limited axially through the bearing inner cover, the bearing cannot move, but the increased space is also needed, and the cost is increased by adding the bearing inner cover; the bearing is installed in the end cover bearing chamber, the axial direction is connected through the pressing block, the pressing block has no guide, the bearing cannot move, the installation is compact, the cost is low, the pressing block is blocked by the circumferential rotor during installation, the installation is not easy, the bearing cannot be pressed due to the fact that the pressing block is easily pushed to the side face of the bearing, and the risk of installation failure exists.

In summary, how to effectively solve the problem of mounting the bearing of the inner rotor motor with a compact structure at low cost is a problem that needs to be solved urgently by those skilled in the art at present.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model discloses an inner rotor motor shaft bearing block structure.

The utility model adopts the following technical scheme:

the utility model provides an inner rotor motor bearing briquetting structure, includes end cover, electric motor rotor, bearing, is connected with the bearing on the electric motor rotor, and the bearing is installed in the end cover bearing chamber on the end cover, and it has the briquetting to press on the bearing, and briquetting and end cover connection lie in end cover bearing chamber terminal surface position on the end cover and are provided with direction boss and spacing boss, and the briquetting is connected between direction boss and spacing boss.

Preferably, the bearing outer ring end face is higher than the end cover bearing chamber end face.

Preferably, the top surface of the limiting boss is higher than the end surface of the bearing outer ring.

Preferably, the top surface of the guide boss is higher than the end surface of the bearing outer ring and lower than the top surface of the limit boss.

Preferably, the pressing block is formed by stamping and is in a long strip shape. The shape of the pressing block is not unique and can be square, round, oval and the like.

Preferably, the end face of the end cover bearing chamber is provided with a countersunk through hole, the countersunk through hole is positioned between the limiting boss and the guide boss, the pressing block is provided with a threaded hole, and the screw penetrates through the countersunk through hole to be in threaded connection with the pressing block.

Preferably, the bottom surface of the pressing block is matched with the end surface of the bearing outer ring, and the bottom surface of the pressing block presses the end surface of the bearing outer ring.

Preferably, the top surface of the guide boss is an inclined surface, and the top surface of the guide boss inclines towards the direction of the limit boss.

Preferably, the pressing block, the countersunk head through hole, the limiting boss and the guiding boss are correspondingly arranged in groups, and the number of the pressing block, the countersunk head through hole, the limiting boss and the guiding boss is 1-4.

Preferably, the end cap is cast from an aluminum alloy.

The utility model has the advantages that: (1) the inner rotor motor pressing block structure realizes the pressing effect on the bearing, prevents the bearing from axially moving, protects the bearing, has a simple structure and does not need to increase the motor installation space; (2) the end cover bearing chamber end face is provided with the guide boss and the limiting boss, the guide and limiting effects are mounted on the pressing block, the installation is convenient and effective, and the pressing block can be ensured to effectively compress the bearing outer ring end face.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the installation process of the present invention;

fig. 3 is a schematic structural view of the end cap of the present invention;

in the figure: 1. the end cover comprises an end cover body 2, a bearing body 3, a guide boss 4, a motor rotor 5, a limiting boss 6, a screw 7, an end cover bearing chamber end face 8, a bearing outer ring end face 9, a pressing block 10, a countersunk through hole 11 and an end cover bearing chamber.

Detailed Description

The technical solution of the present invention is further described in detail by the following specific embodiments in combination with the accompanying drawings:

example (b): as shown in the attached drawings 1-3, an inner rotor motor bearing press block structure comprises an end cover 1, a motor rotor 4 and a bearing 2, wherein the motor rotor is connected with the bearing, the bearing is installed in an end cover bearing chamber 11 on the end cover, three groups of guide bosses 3 and three groups of limit bosses 5 are evenly arranged on the end cover at the position 7 on the end cover bearing chamber end face along the circumference, countersunk through holes are respectively arranged on the bearing chamber end face between each group of limit bosses and the guide bosses, three press blocks 9 are correspondingly pressed on the bearing, threaded holes are correspondingly arranged on the press blocks, and the end cover penetrates through the countersunk through holes 10 through screws 6 to be in threaded connection with the press blocks.

The end surface 8 of the bearing outer ring is higher than the end surface of the bearing chamber of the end cover. The top surface of the limit boss is higher than the end surface of the bearing outer ring. The top surface of the guide boss is higher than the end surface of the bearing outer ring and lower than the top surface of the limit boss. The pressing block is formed by punching and is in a strip shape. The bottom surface of the pressing block is matched with the end surface of the bearing outer ring, and the bottom surface of the pressing block presses the end surface of the bearing outer ring. The top surface of the guide boss is an inclined surface, and the top surface of the guide boss inclines towards the direction of the limit boss. The end cover is cast from an aluminum alloy.

During this inner rotor motor briquetting structural installation, earlier with the briquetting and the screw threaded connection who passes the countersunk head through-hole, then install the bearing at the bearing room, rotate the briquetting and change over into to the bearing of holding in with briquetting one end through the direction boss, screw up the screw and compress tightly the briquetting, the briquetting is spacing at this moment between direction boss and spacing boss, accomplishes the installation. The utility model discloses the effectual inner rotor motor bearing axial float problem of having solved to and the installation problem of bearing clamp plate, compact structure, simple to operate is effective, low cost.

The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the scope of the claims.

Claims

1. The utility model provides an inner rotor motor bearing briquetting structure, includes end cover, electric motor rotor, bearing, is connected with the bearing on the electric motor rotor, and the bearing is installed in the end cover bearing chamber on the end cover, characterized by, the last briquetting that has pressed of bearing, briquetting and end cover connection lie in end cover bearing chamber terminal surface position on the end cover and are provided with direction boss and spacing boss, and the briquetting is connected between direction boss and spacing boss.

2. The inner rotor motor shaft bearing block structure of claim 1, wherein the bearing outer race end surface is higher than the end cap bearing housing end surface.

3. The inner rotor motor shaft bearing block structure of claim 1, wherein the top surface of the limit boss is higher than the end surface of the bearing outer ring.

4. The inner rotor motor shaft bearing block structure of claim 1, wherein the top surface of the guide boss is higher than the end surface of the bearing outer ring and lower than the top surface of the limit boss.

5. The bearing block structure of an inner rotor motor shaft as claimed in claim 1, wherein the pressing block is formed by stamping and has a shape of a long bar.

6. The inner rotor motor shaft bearing block structure of claim 1, wherein the end surface of the end cap bearing housing is provided with a countersunk through hole between the limiting boss and the guiding boss, the pressing block is provided with a threaded hole, and a screw passes through the countersunk through hole and is in threaded connection with the pressing block.

7. The inner rotor motor shaft bearing block structure of claim 1, wherein the bottom surface of the pressing block is engaged with the end surface of the bearing outer ring, and the bottom surface of the pressing block presses the end surface of the bearing outer ring.

8. The inner rotor motor shaft bearing block structure of claim 1, wherein the top surface of the guide boss is an inclined surface, and the top surface of the guide boss is inclined toward the limit boss.

9. The pressure-bearing block structure of the shaft of the inner rotor motor as claimed in claim 1, wherein the pressure block, the countersunk through hole, the limiting boss and the guiding boss are correspondingly arranged in groups, and the number of the pressure block, the countersunk through hole, the limiting boss and the guiding boss is 1-4 groups.

10. The inner rotor motor shaft bearing block structure of claim 1, wherein the end cap is cast from an aluminum alloy.