CN211761236U

CN211761236U - Pulley bearing press fitting auxiliary tool

Info

Publication number: CN211761236U
Application number: CN202020178548.6U
Authority: CN
Inventors: 任洁
Original assignee: Taiyuan Heavy Industry Co Ltd
Current assignee: Taiyuan Heavy Industry Co Ltd
Priority date: 2020-02-18
Filing date: 2020-02-18
Publication date: 2020-10-27
Anticipated expiration: 2030-02-18

Abstract

The utility model discloses a pulley bearing pressure equipment auxiliary fixtures, its characterized in that: the pulley positioning device comprises a bearing positioning end, a pulley positioning end and a transition section, wherein the bearing positioning end and the pulley positioning end are cylindrical and concentric, the transition section is a conical surface, the outer diameter of the bearing positioning end is matched with an inner hole of a bearing, the pulley positioning end is fixedly matched with a pulley, the outer circle size of the pulley positioning end is the same as that of the inner hole of the pulley, and the outer circle size of the bearing positioning end is the same as that of the inner hole of the bearing. The utility model provides a nylon pulley bearing pressure equipment auxiliary fixtures can realize the fixed of pulley and bearing.

Description

Pulley bearing press fitting auxiliary tool

Technical Field

The utility model relates to a machine parts field especially relates to a pulley bearing pressure equipment auxiliary fixtures.

Background

The nylon pulley bearing is assembled by adopting hydraulic press mounting, heating the pulley to 85-95 ℃ and installing the bearing in the expansion hole. In the case of no heating equipment, a press-fitting method is adopted, and the press-fitting tolerance of the nylon pulley and the bearing is large. Access becomes a difficult point during bearing assembly.

The utility model discloses can solve above-mentioned problem well.

SUMMERY OF THE UTILITY MODEL

The invention aims to overcome the defects of the prior art and provides an auxiliary tool for press mounting of a pulley bearing, and the technical scheme of the utility model is as follows:

the device comprises a bearing positioning end, a pulley positioning end and a transition section. The bearing positioning end and the pulley positioning end are cylindrical surfaces and concentric, the transition section is a conical surface, the bearing excircle and the pulley inner hole are concentric in the press fitting process through the positioning surface, the pulley inner hole is in an expansion state in the press fitting process through the conical transition surface, and the bearing is brought into the pulley inner hole through a tool, so that the problem of bearing press fitting entrance is solved, and the press fitting difficulty is reduced.

Drawings

In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts, wherein:

fig. 1 is the structural schematic diagram of the pulley bearing press-fitting auxiliary tool of the present invention.

Fig. 2 is a partially enlarged schematic view of fig. 1.

Fig. 3 is the pulley bearing press-fitting auxiliary tool of the present invention, and the schematic diagram of the bearing and the pulley.

Description of reference numerals: 1-bearing positioning end, 2-transition section, 3-pulley positioning end, 4-bearing, 5-pulley bearing press-fitting auxiliary tool and 6-pulley.

Detailed Description

To make the purpose, technical solution and advantages of the present invention clearer, the following will combine the embodiments of the present invention and the corresponding drawings to clearly and completely describe the technical solution of the present invention. It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Please refer to fig. 1, fig. 2 and fig. 3, the utility model discloses a pulley bearing pressure equipment auxiliary fixtures 5 is used for in 4 pressure equipments of bearing to pulley 6, pulley bearing pressure equipment auxiliary fixtures 5 includes bearing location end 1,

pulley location end

3 and 2 three parts of changeover portion, wherein, bearing location end 1 is face of cylinder and concentric with pulley location end 3, changeover portion 2 is the circular conical surface, 1 external diameter of bearing location end and the cooperation of 4 holes of bearing, pulley location end 3 and pulley 6 fixed coordination, 3 excircle sizes of pulley location end are the same with 6 hole sizes of pulley, 1 excircle size of bearing location end is the same with 4 hole sizes of bearing.

When the tool pulley positioning end is used, the tool pulley positioning end 3 is arranged in an inner hole of the pulley 6, the bearing 4 is arranged at the bearing positioning end 1, the bearing 4 is pressed, the bearing positioning end 1 and the pulley positioning end 3 are concentric, the excircle of the bearing 4 and the inner hole of the pulley 6 are concentric in the pressing process, and the bearing is uniformly stressed. Through the change of transition section conical surface diameter, the hole slowly expands, and bearing 4 is brought into 6 holes of pulley through auxiliary fixtures 5.

The auxiliary tool is suitable for assembling nylon pulley bearings of various specifications, can be repeatedly used, is convenient to disassemble and assemble, and is simple in structure and easy to manufacture.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. In addition, "front", "rear", "left", "right", "upper", "lower", "inner", "outer", "top", "bottom", and the like herein are referred to as the state of being placed as shown in the drawings.

It should be further noted that the above embodiments are only used for illustrating the technical solution of the present invention, and are not limited thereto; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the scope of the present invention.

Claims

1. The utility model provides a pulley bearing pressure equipment auxiliary fixtures which characterized in that: the pulley positioning device comprises a bearing positioning end, a pulley positioning end and a transition section, wherein the bearing positioning end and the pulley positioning end are cylindrical and concentric, the transition section is a conical surface, the outer diameter of the bearing positioning end is matched with an inner hole of a bearing, the pulley positioning end is fixedly matched with a pulley, the outer circle size of the pulley positioning end is the same as that of the inner hole of the pulley, and the outer circle size of the bearing positioning end is the same as that of the inner hole of the bearing.