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Installation method of self-aligning roller bearing in rocker arm of coal mining machine

A technology of self-aligning roller bearing and installation method, which is applied in the direction of shaft and bearing, bearing element, rigid support of bearing parts, etc. Difficulty in operation and other problems, to achieve the effect of good use effect, easy disassembly and assembly, and simple installation process

Active Publication Date: 2018-10-12
XIAN COAL MINING MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because after the spherical roller bearing is installed, the outer ring of the spherical roller bearing is fixed on the shell, and the inner ring of the spherical roller bearing can swing, so the spherical roller bearing and the shaft gear cannot be kept perpendicular; The center roller bearing and the shaft gear are connected by interference fit. Due to the problem of the center of gravity of the spherical roller bearing during installation, it swings seriously from side to side, and it is difficult to align the installation. Secondly, because of the interference fit connection, once the spherical roller bearing Installed on the shaft gear, it is complicated to disassemble and reinstall due to improper installation, and the operation is difficult

Method used

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  • Installation method of self-aligning roller bearing in rocker arm of coal mining machine
  • Installation method of self-aligning roller bearing in rocker arm of coal mining machine
  • Installation method of self-aligning roller bearing in rocker arm of coal mining machine

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] like figure 1 , figure 2 and image 3 As shown, the shearer rocker arm of the present invention includes a housing, cover end covers 1 arranged on both sides of the housing, and a plurality of shaft gears 3 arranged in the housing and connected by transmission, each of which The two ends of the shaft gear 3 are equipped with self-aligning roller bearings 2, and the self-aligning roller bearings 2 are fixedly connected with the cover end cover 1. The self-aligning roller bearings 2 include a first self-aligning roller bearing and a second self-aligning roller bearing. The self-aligning roller bearing is characterized in that the method comprises the following steps: the method of installing the first self-aligning roller bearing and the second self-aligning roller bearing respectively at both ends of the plurality of shaft gears 3 are the same, wherein , install the first spherical roller bearing and the second spherical roller bearing at both ends of any shaft gear 3...

Embodiment 2

[0050] In this embodiment, the difference from embodiment 1 is:

[0051] In this embodiment, the first self-aligning roller bearing and the second self-aligning roller bearing are self-aligning roller bearings with a diameter of 200 mm to 300 mm.

[0052] In this embodiment, when the diameters of the first self-aligning roller bearing and the second self-aligning roller bearing are 200 mm to 300 mm, the heat treatment of the first self-aligning roller bearing in step 2 and the first self-aligning roller bearing in step 3 The heat treatment process of two spherical roller bearings is as follows:

[0053] Step A, heating for the first time: use bearing heaters to heat the inner rings of the first spherical roller bearing and the second spherical roller bearing once, wherein the first heating temperature is 15°C, and the first heating time is 5 minutes;

[0054] Step B, standing still: After heating the first spherical roller bearing and the second spherical roller bearing in st...

Embodiment 3

[0058] In this embodiment, the difference from embodiment 1 is:

[0059] In this embodiment, the first spherical roller bearing and the second spherical roller bearing are spherical roller bearings with a diameter larger than 300mm.

[0060] In this embodiment, when the diameters of the first spherical roller bearing and the second spherical roller bearing are greater than 300mm, the heat treatment of the first spherical roller bearing in step 2 and the second adjustment in step 3 The heat treatment process of the inner roller bearing is as follows:

[0061] Step 1. First heating: use a bearing heater to heat the inner rings of the first spherical roller bearing and the second spherical roller bearing, wherein the heating temperature for the first heating is 15°C, and the heating time for the first heating is 5 minutes;

[0062] Step Ⅱ, standing still: After heating the first spherical roller bearing and the second spherical roller bearing in step Ⅰ, put the first spherical r...

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Abstract

The invention discloses an installing method for self-aligning roller bearings in a coal cutter rocker arm. The method comprises the following steps that firstly, fake bearing installation is conducted; secondly, shaft gear and first self-aligning roller bearing installing is conducted; thirdly, second self-aligning roller bearing installing is conducted; and fourthly, the first step, the second step and the third step are repeatedly conducted many times, and installation of the first self-aligning roller bearings and the second self-aligning roller bearings at the two ends of multiple shaft gears is finished. According to the method, steps are simple, design is reasonable, installation is convenient, and the using effect is good; the self-aligning roller bearings are positioned through installation of fake bearings, and the self-aligning roller bearing installing process can be easily, conveniently and rapidly finished; the installing process is simple, labor of workers is greatly reduced, meanwhile, damage of the self-aligning roller bearings is avoided, the service life of the self-aligning roller bearings is greatly prolonged, and the self-aligning roller bearings are economical and practical.

Description

technical field [0001] The invention belongs to the technical field of self-aligning roller bearing installation, and in particular relates to a method for installing a self-aligning roller bearing in a rocker arm of a coal mining machine. Background technique [0002] In order to meet the market demand, the product structure of the currently used rocker arm of the coal mining machine has changed. The original planetary transmission mode in the rocker arm of the coal mining machine has been replaced by a straight tooth transmission mode, and a large number of pairs of self-aligning roller bearings are used for load bearing. Compared with cylindrical roller bearings, self-aligning roller bearings can carry larger loads, and can be used in pairs to achieve self-alignment, but at the same time increase the difficulty of installation. Because after the spherical roller bearing is installed, the outer ring of the spherical roller bearing is fixed on the shell, and the inner ring ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16C35/067
CPCF16C35/067
Inventor 唐荣斌张宏帅代强史仁贵
Owner XIAN COAL MINING MACHINERY
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