CN207609688U - A kind of device for eliminating split bearing and journal wear gap - Google Patents

Abstract

The utility model is a kind of device for eliminating split bearing and journal wear gap, highland barley paper is padded between split bearing and the main shaft shaft shoulder, the width of the highland barley paper is consistent with the axial length of the shaft shoulder, and thickness is determined according to the clearance distance between split bearing and the main shaft shaft shoulder.The beneficial effects of the utility model：The relative rotation caused by the gap that main shaft journal wear is brought between bearing inner race and main shaft axle journal after more renewing split bearing is eliminated, the time between overhauls(TBO) is extended, reduces security risk.

Description

A kind of device for eliminating split bearing and journal wear gap

Technical field

Behind metallurgical machinery service technique field more particularly to a kind of split bearing and journal wear Eliminate the processing unit of wearing clearance.

Background technology

Lian Zha factories of our company big stick-means of intimidation line cold bed main shaft is connected using split bearing, and split bearing normal operation must be protected It demonstrate,proves between bearing inner race and main shaft axle journal without relative rotation.It acts frequently in production process cold bed, is in direct contact high temperature steel, by High temperature erosion；Cold bed main shaft occurs asynchronous, needs to overhaul, repair rate is 3-4 months 1 time；Since cold bed changing main-spindle is time-consuming Arduously, especially summer overhauls, and temperature environment temperature is to the body of service personnel, sunstroke prevention work at 130 DEG C or so under cold bed Greatly test, therefore take a kind of processing method for eliminating split bearing and journal wear gap, compensation main shaft and bearing Wearing clearance is simultaneously continuing with, and unifies changing main-spindle when waiting for annual overhaul.

Utility model content

The purpose of this utility model is to extend the usage time of main shaft and bearing, provide a kind of eliminations split bearing and The device in journal wear gap.

The technical solution of the utility model：A kind of device for eliminating split bearing and journal wear gap, in split bearing Highland barley paper is padded between the main shaft shaft shoulder, the width of the highland barley paper is consistent with the axial length of the shaft shoulder, and thickness is according to split bearing Clearance distance between the main shaft shaft shoulder determines.

Further：Highland barley paper is divided into 2-3 sections, one cylinder of each section of end to end composition.

The beneficial effects of the utility model：It eliminates between being brought due to main shaft journal wear after more renewing split bearing Relative rotation caused by gap between bearing inner race and main shaft axle journal extends the time between overhauls(TBO), reduces security risk.

Description of the drawings

Fig. 1 is the schematic diagram of the utility model；

1- main shafts, 2- split bearings, 3- highland barley paper.

Specific implementation mode

A kind of device for eliminating split bearing and journal wear gap pads green between 1 shaft shoulder of split bearing 2 and main shaft Highland barley paper 3, the width of the highland barley paper is consistent with the axial length of the shaft shoulder, and thickness is according to the gap between 1 shaft shoulder of split bearing 2 and main shaft Distance determines.

In order to adapt to the construction of 2 segmented of split bearing, installation, highland barley paper is facilitated to be divided into 2-3 sections, each section end to end group At a cylinder.

Specific installation steps：1. removing split bearing outer ring fastening bolt, split bearing outer ring upper cover is removed；

2. removing split bearing detachable retainer and rolling element；

3. knocking out bearing inner race with copper coin；

4. choosing certain thickness highland barley paper according to measurement gap, it is cut into and is filled with the item of bearing inner race equivalent width, liner Between split bearing inner ring and the shaft shoulder；

5. time dress bearing inner race, returns dress barrel；

6. time dress split bearing outer ring upper cover and fastening bolt.

The installation of highland barley paper can effectively eliminate the gap between split bearing and the shaft shoulder, and guarantee more renews split bearing and master It does not relatively rotate between shaft neck, after there is gap between split bearing and the shaft shoulder, can be handled with this method, eliminate gap simultaneously It is continuing with, the main shaft for replacing abrasion is concentrated when annual overhaul.This is novel to make split bearing in high temperature（500℃）Under environment, Service life is extended, and repair rate is reduced, and reduces security risk.

Claims (2)

1. a kind of device for eliminating split bearing and journal wear gap, it is characterized in that：In split bearing（2）With main shaft（1）Axis Highland barley paper is padded between shoulder（3）, the width of the highland barley paper is consistent with the axial length of the shaft shoulder, and thickness is according to split bearing（2）With Main shaft（1）Clearance distance between the shaft shoulder determines.

2. a kind of device for eliminating split bearing and journal wear gap according to claim 1, it is characterized in that：Highland barley paper It is divided into 2-3 sections, one cylinder of each section of end to end composition.