CN210157060U

CN210157060U - Inverted clamp of motor pressure bearing

Info

Publication number: CN210157060U
Application number: CN201921312734.8U
Authority: CN
Inventors: 张正良
Original assignee: Guangzhou Bailitong Electric Machinery Co Ltd
Current assignee: Guangzhou Bailitong Electric Machinery Co Ltd
Priority date: 2019-08-14
Filing date: 2019-08-14
Publication date: 2020-03-17
Anticipated expiration: 2029-08-14

Abstract

A flip-chip clamp of an electromechanical bearing, wherein: including bottom plate, center pillar and last mould, the center pillar passes through the bolt lock on the bottom plate, still including the fly leaf, the fly leaf middle part is equipped with the sliding hole, be equipped with slide bearing in the sliding hole, the fly leaf passes through slide bearing sleeve on the center pillar, and is parallel with the bottom plate, be equipped with the spring between fly leaf and the bottom plate, the spring housing is on the center pillar, the top of center pillar is equipped with the projection, projection external diameter is the same with motor bearing inner circle diameter, go up the mould and locate center pillar axle center direction directly over, the upper end is connected with the drift of pressure equipment. The utility model discloses a flip-chip formula carries out the pressure equipment to motor bearing and motor housing's bearing groove, has promoted the rotor pivot concentricity of motor bearing and motor effectively.

Description

Inverted clamp of motor pressure bearing

Technical Field

The utility model relates to an equipment of motor bearing, especially a flip-chip formula anchor clamps of motor pressure bearing.

Background

The motor in the water-cooled water pump passes through the stator and produces rotating magnetic field, drives the rotor and rotates, and the rotor passes through the bearing to be installed in motor housing, sets up the bearing in motor housing, adopts glue to fix the bearing usually, also has partly simultaneously to set up the bearing groove at motor housing, carries out the pressure equipment through the interference fit of bearing and bearing groove, needs carry out the pressure equipment to the bearing through anchor clamps. In the prior art, most of technical schemes for press-mounting bearings on a motor shell adopt a fixed motor shell, and press-mounting actions are performed on the bearings by using press-mounting shafts, for example, chinese patent CN205733705U discloses a device for press-mounting bearings on a rear cover of a motor, the press-mounting scheme of the bearings easily causes axis deviation of the bearings, the hardness of the material of the motor shell is generally lower than that of the bearings, in the process of press-mounting the bearings, factors such as inaccurate positioning, uneven pressure and the like easily cause the axis center line of the bearings to deviate from an ideal track, and the concentricity deviation with a rotor rotating shaft in the motor is too large, so that the service life and the working efficiency of the motor are influenced.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above disadvantages of the prior art, the present invention provides a flip-chip type clamp for a motor press bearing.

The utility model provides a technical scheme that its technical problem adopted is: a flip-chip clamp of an electromechanical bearing, wherein: including bottom plate, center pillar and last mould, the center pillar passes through the bolt lock on the bottom plate, still including the fly leaf, the fly leaf middle part is equipped with the sliding hole, be equipped with slide bearing in the sliding hole, the fly leaf passes through slide bearing sleeve on the center pillar, and is parallel with the bottom plate, be equipped with the spring between fly leaf and the bottom plate, the spring housing is on the center pillar, the top of center pillar is equipped with the projection, projection external diameter is the same with motor bearing inner circle diameter, go up the mould and locate center pillar axle center direction directly over, the upper end is connected with the drift of pressure equipment.

As a further improvement of the utility model: the movable plate is provided with a positioning block, and the outer diameter of the positioning block is the same as the inner wall diameter of the motor shell port.

As a further improvement of the utility model: the inner wall of the port of the motor shell is provided with a step part, and the top edge of the fixed outer block is in right angle fit with the step part.

As a further improvement of the utility model: the bottom plate is provided with at least 3 guide posts, and the movable plate is provided with guide holes corresponding to the guide posts.

Compared with the prior art, the beneficial effects of the utility model are that: the upside-down mounting type motor bearing and the bearing groove of the motor shell are adopted for press mounting, and the concentricity of the motor bearing and the rotor rotating shaft of the motor is effectively improved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention before press-fitting.

Fig. 2 is a schematic structural diagram of the utility model after press mounting.

Fig. 3 is a schematic structural diagram of an embodiment three.

Detailed Description

The invention will now be further described with reference to the accompanying drawings, in which:

the first embodiment is as follows:

referring to fig. 1-2, a flip-chip fixture for a motor bearing, the motor includes a motor housing 62 and a motor bearing 61, a bearing groove 63 is provided in the motor housing 62, the bearing 61 is assembled with the bearing groove 63 in an interference fit manner, wherein: the flip-chip anchor clamps include bottom plate 1, center pillar 2 and go up mould 3, center pillar 2 passes through the bolt lock on bottom plate 1, still including fly leaf 4, fly leaf 4 middle part is equipped with the sliding hole, be equipped with slide bearing 41 in the sliding hole, fly leaf 4 overlaps on the center pillar through slide bearing 41, and is parallel with bottom plate 1.

Be equipped with spring 5 between fly leaf 4 and the bottom plate 1, spring 5 cover is on center pillar 2, the impact force that produces during the pressure equipment is cushioned to the spring, guarantees steady pressure equipment, effectively reduces the motor and makes a sound the risk at the axle of during operation.

The top of center pillar 2 is equipped with projection 21, projection 21 external diameter is the same with motor bearing 61 inner circle diameter to guarantee that the bearing is concentric with the axis of center pillar with the projection all the time, through projection 21 to motor bearing 61's fixed, utilize the flip-chip formula to push down motor housing 62 and carry out the pressure equipment bearing, can effectively guarantee motor bearing and motor housing's concentricity.

Be equipped with locating piece 42 on fly leaf 4, the locating piece is the cylinder shape, sets up with the center pillar is coaxial, locating piece 42 external diameter is the same with motor housing port inner wall 64 diameter, through the laminating of locating piece 52 with motor housing port inner wall 64, has guaranteed deviation in the horizontal direction of motor housing 62, and the axial lead that has further restricted bearing groove 63 is perpendicular, makes its axial lead with motor bearing 61 be in same vertical line. A step part 65 is arranged on the inner wall 64 of the port of the motor shell, and the top edge of the fixed outer block 4 is right-angled and attached to the step part 65. More specifically, the end of the motor housing is pressed on the top surface of the movable plate 4, the inner wall 64 of the port is attached to the outer side surface of the positioning block 42, and the step portion 65 is attached to the top edge of the positioning block 42 at a right angle, so that the motor housing 62 is further guaranteed to be stably pressed and assembled in the press-fitting process.

The upper die 3 is arranged right above the center pillar 2 in the axial direction, and the upper end part of the upper die is connected with a punch (not shown in the drawing) of the press-fitting equipment. Through the push down of last mould 3, promote the decline of motor housing 62 and fly leaf 4, because the decline of fly leaf 4 is under the guiding action of slide bearing 41, guaranteed the concentricity of motor bearing 61 with the bearing groove 63 of motor housing 62, and then accomplish the interference fit equipment of motor bearing 61 with bearing groove 63, mould 3 rebound this moment, motor housing 62 and fly leaf 4 that have pressed fit the motor bearing are because the effect of spring 8, the rebound makes motor bearing 61 break away from projection 21, take out motor housing and accomplish the equipment.

The second embodiment:

referring to fig. 3, on the basis of the first embodiment, at least three guide posts 11 are arranged on the bottom plate, guide holes are arranged in the movable plate 4 corresponding to the guide posts, and in the press-fitting process of the movable plate, the guide posts and the guide holes further ensure the level of the movable plate, so that the concentricity of a bearing groove of a motor housing and a motor bearing is further improved.

The upper die 3 is provided with a pressing plate 31, the top surface of the motor shell is provided with at least 2 steps, the bottom surface of the upper die is in contact with the middle part of the motor shell in the press mounting process, and the pressing plate is in contact with the edge part of the top of the motor shell, so that the descending stability and the descending pressure uniformity of the motor shell in the press mounting process are further improved.

In conclusion, after the ordinary skilled in the art reads the document of the present invention, according to the present invention, the technical solution and technical concept of the present invention do not need creative mental labor to make other various corresponding transformation schemes, which all belong to the protection scope of the present invention.

Claims

1. The utility model provides a flip-chip anchor clamps of motor pressure bearing, characterized by: including bottom plate, center pillar and last mould, the center pillar passes through the bolt lock on the bottom plate, still including the fly leaf, the fly leaf middle part is equipped with the sliding hole, be equipped with slide bearing in the sliding hole, the fly leaf passes through slide bearing sleeve on the center pillar, and is parallel with the bottom plate, be equipped with the spring between fly leaf and the bottom plate, the spring housing is on the center pillar, the top of center pillar is equipped with the projection, projection external diameter is the same with motor bearing inner circle diameter, go up the mould and locate center pillar axle center direction directly over, the upper end is connected with the drift of pressure equipment.

2. The inverted clamp for an electromechanical bearing as set forth in claim 1, wherein: the movable plate is provided with a positioning block, and the outer diameter of the positioning block is the same as the inner wall diameter of the motor shell port.

3. The inverted clamp for an electromechanical bearing as set forth in claim 2, wherein: the inner wall of the motor shell port is provided with a step part, and the right angle of the top edge of the positioning block is attached to the step part.