CN211162754U

CN211162754U - Bearing assembly fixture for motor

Info

Publication number: CN211162754U
Application number: CN201920933514.0U
Authority: CN
Inventors: 陈小平; 赵明远; 岳*波; 岳波
Original assignee: Changzhou Annaiya Rehabilitation Equipment Co ltd
Current assignee: Changzhou Annaiya Rehabilitation Equipment Co ltd
Priority date: 2019-06-20
Filing date: 2019-06-20
Publication date: 2020-08-04
Anticipated expiration: 2029-06-20

Abstract

The utility model relates to the field of accessory assembly, in particular to a bearing assembly tool for a motor, which comprises a base fixed on a base surface of a workbench through bolts and a pressure head at the tail end of a press-fitting machine, wherein the top end of the base is provided with an annular limiting groove for preventing an accessory to be assembled from radially moving; the pressure head comprises a shell and a core column, wherein the shell is of a hollow structure with an opening at the lower end and an end ring extending inwards at the opening, a protruding structure capable of being erected on the end ring is arranged at the outer edge of the core column, a spring is arranged on the other side of the protruding structure, the core column protrudes out of the lower end face of the end ring and extends outwards, and O-shaped rings used for clamping a bearing to be assembled are symmetrically arranged on the outwards extending part of the core column. The utility model discloses a new construction makes originally can not taken up by the accessory that the pressure head was taken up again to reduced the probability that the accessory was bruised, also saved the time that the workman unloaded the accessory process.

Description

Bearing assembly fixture for motor

Technical Field

The utility model relates to an accessory assembly field, concretely relates to bearing assembly fixture for motor.

Background

The motor is an electromagnetic device for realizing electric energy conversion or transmission according to an electromagnetic induction law. The motor mainly functions in generating driving torque, and the electric energy is converted into magnetic energy to generate rotation action so as to drive other mechanical motion, so that the bearing is indispensable in the motor.

The bearing has a large size, the bearing is required to be pressed in some small accessories sometimes, and the problem brought by the small accessories is that the bearing is easy to be brought up together with the bearing by a pressing machine because the accessories are light in weight after the bearing is pressed in the pressing process. On one hand, the taken-up accessories are not beneficial to continuous and unmanned production of factories, and the accessories need to be manually removed by workers; on the other hand, the steel is easy to be damaged, and unnecessary economic loss is caused.

Referring to fig. 3, before improvement, the O-ring is far away from the lower end face of the end ring, and when the press-fitting is completed, the O-ring is still clamped in the bearing, so that the press-fitting machine is lifted, the bearing is driven to lift together, and the self weight of the fitting is light, so that the fitting is taken up by the press-fitting machine together with the bearing.

SUMMERY OF THE UTILITY MODEL

In view of the above problem, the utility model provides a prevent that accessory from being taken up's bearing equipment frock for motor.

In order to solve the technical problem, the utility model discloses a technical scheme as follows: the bearing assembly tool for the motor comprises a base fixed on a base surface of a workbench through bolts and a pressure head at the tail end of a press-fitting machine, wherein the top end of the base is provided with an annular limiting groove for preventing a part to be assembled from radially moving; the pressure head comprises a shell and a core column, wherein the shell is of a hollow structure with an opening at the lower end and an end ring extending inwards at the opening, a protruding structure capable of being erected on the end ring is arranged at the outer edge of the core column, a spring is arranged on the other side of the protruding structure, the core column protrudes out of the lower end face of the end ring and extends outwards, and O-shaped rings used for clamping a bearing to be assembled are symmetrically arranged on the outwards extending part of the core column.

Further, a gap exists between the lower end face of the end ring and the bearing to be assembled, and the width of the gap is larger than or equal to the diameter of the O-shaped ring. If the width of the gap is smaller than the diameter of the O-shaped ring, a part of the O-shaped ring is still clamped in the bearing, and the bearing is not completely separated from the press-mounting machine.

Further, the distance between the top end of the O-ring and the lower end face of the end ring is larger than one gap width and smaller than two gap widths. If the distance is less than one gap width, the bearing cannot be clamped, and if the distance is more than two gap widths, the O-shaped ring is always clamped inside the bearing and cannot be separated.

Therefore, compared with the prior art, the bearing equipment tool for the motor mainly has the following advantages: the utility model adopts a new structure to prevent the accessories which can be taken up by the pressure head from being taken up again, thereby reducing the probability of damaging the accessories and saving the time of the worker in the accessory removing process; on the one hand, the economic benefit of production is improved, and on the other hand, the production efficiency is also improved.

Drawings

The foregoing and other objects, features, and advantages of the invention will be apparent from the following detailed description taken in conjunction with the accompanying drawings.

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

FIG. 2 is a schematic view of an embodiment of the present invention;

fig. 3 is a schematic structural view of the tool before improvement.

Wherein: 1. the novel pressure head comprises a base, a pressure head 2, an annular limiting groove 3, a shell 4, an end ring 41, an end ring lower end face 42, a core column 5, a protruding structure 51, a spring 6, an O-shaped ring 7, a gap 8, a bearing 91 and accessories 92.

Detailed Description

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. The following description with reference to the accompanying drawings is provided to assist in understanding the embodiments of the invention defined by the claims. It includes various specific details to assist understanding, but they are to be construed as merely illustrative. Accordingly, those skilled in the art will recognize that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the present invention. Also, in order to make the description clearer and simpler, a detailed description of functions and configurations well known in the art will be omitted. As used in the description, the terms "front," "back," "left," "right," "up," and "down" refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

The invention will be further described with reference to the following several drawings: referring to fig. 1 to 2, the bearing assembly tool for the motor comprises a base 1 fixed on a base surface of a workbench through bolts and a pressure head 2 at the tail end of a press-fitting machine, wherein an annular limiting groove 3 for preventing a fitting 92 to be assembled from moving radially is arranged at the top end of the base 1; the pressure head 2 comprises a shell 4 and a stem 5, wherein the shell 4 is a hollow structure with an opening at the lower end and an end ring 41 extending inwards at the opening, a raised structure 51 capable of being erected on the end ring 41 is arranged at the outer edge of the stem 5, a spring 6 is arranged at the other side of the raised structure 51, the stem 5 protrudes out of the lower end surface 42 of the end ring and extends outwards, and O-rings 7 for clamping a bearing 91 to be assembled are symmetrically arranged on the outwards extending part of the stem 5. A gap 8 exists between the end ring lower end face 42 and the bearing 91 to be assembled, and the width of the gap is equal to the diameter of the O-shaped ring. The distance between the top end of the O-shaped ring 7 and the lower end surface 42 of the end ring is 1.5 gap widths.

Referring to fig. 2, the working process of the present invention is briefly described: in the above-mentioned bearing assembling tool for a motor, since the bearing 91 and the fitting 92 to be assembled are in an interference fit, when the press-fitting machine slowly presses down, the gap 8 between the bearing 91 and the lower end face of the end ring is gradually reduced until eliminated. When the bottom surface of the stem 5 contacts the base 1, the absolute position of the stem 5 is not changed, and the press-fitting machine continues to move downwards, that is, the housing 2 continues to move downwards, so that the O-ring 7 which is originally clamped on the bearing 91 is clamped into the end ring 41 of the housing, and the O-ring 7 is separated from the bearing 91 and cannot be taken up by the press-fitting machine.

Claims

1. Bearing assembly fixture for motor includes the pressure head that is fixed in base and pressure equipment machine end on the workstation base face through the bolt, its characterized in that: the top end of the base is provided with an annular limiting groove for preventing the accessories to be assembled from radial migration; the pressure head comprises a shell and a core column, wherein the shell is of a hollow structure with an opening at the lower end and an end ring extending inwards at the opening, a protruding structure capable of being erected on the end ring is arranged at the outer edge of the core column, a spring is arranged on the other side of the protruding structure, the core column protrudes out of the lower end face of the end ring and extends outwards, and O-shaped rings used for clamping a bearing to be assembled are symmetrically arranged on the outwards extending part of the core column.

2. The bearing assembling tool for the motor according to claim 1, wherein a gap exists between the lower end face of the end ring and the bearing to be assembled, and the width of the gap is larger than or equal to the diameter of the O-shaped ring.

3. The bearing assembling tool for the motor according to claim 2, wherein the distance between the top end of the O-shaped ring and the lower end face of the end ring is larger than one gap width and smaller than two gap widths.