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Sea platform uplift reducer bearing clearance adjusting method and special tool therefor

A bearing clearance and offshore platform technology, applied in metal processing, manufacturing tools, transmission parts, etc., can solve problems such as poor stability of axial clearance precision control, influence of reducer service life, and difficult control of axial clearance, and achieve high precision Good stability, extended service life and high precision

Active Publication Date: 2012-10-17
SHANGHAI ZHENHUA HEAVY IND GRP NANTONG TRANSMISSION MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When this structure is assembled, the axial clearance is difficult to control, and the stability of axial clearance precision control is poor, which has a great impact on the service life of the reducer
However, due to the limitation of its place of use, the cost of repairing the reducer is very high

Method used

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  • Sea platform uplift reducer bearing clearance adjusting method and special tool therefor
  • Sea platform uplift reducer bearing clearance adjusting method and special tool therefor
  • Sea platform uplift reducer bearing clearance adjusting method and special tool therefor

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Experimental program
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Effect test

Embodiment Construction

[0021] The specific method steps are:

[0022] a) if figure 1 As shown, first, the two ends of the reducer shaft 3 are connected to the bearing A1 and the bearing B2, and the bearing A1 and the bearing B2 are installed in the bearing installation holes on the two side walls of the reducer housing 4 . The bearing A1 at one end is limited by the step surface of the bearing installation hole of the reducer housing 4 or other structures, and the bearing B2 at the other end is not limited.

[0023] b) Then install the clearance adjustment gland 5 of the special tooling outside the bearing installation hole of the bearing B2, and the clearance adjustment gland 5 and the outer wall of the reducer housing 4 on this side are fixed by bolts.

[0024] In this step, a special tool for realizing the method of adjusting the bearing clearance of the lifting reducer of the offshore platform is involved, such as figure 2 , 3 As shown, it includes: a flange-shaped gap adjustment gland 5, a ...

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Abstract

The invention relates to a sea platform uplift reducer bearing clearance adjusting method and a special tool therefor. One of two bearings at both ends of a shaft of a reducer is a limit bearing A, the other one B is not a limit bearing; a compacting part of the adopted special tool extends into a bearing mounting hole; the compacting part is made to cling closely to an outer ring side face of the bearing B through manual rotation; axial clearance is eliminated by using a torque wrench to rotate the compacting part; a corresponding bearing cover of a reducer housing is made after calculation based on axial clearance values of various positions. The special tool comprises an axial clearance adjustment cover, wherein a connecting hole is arranged on the axial clearance adjustment cover; the compacting part is connected through an internal thread hole in the center of the axial clearance adjustment cover; and one end portion of the compacting part is arranged with a screw nut used for connecting with the torque wrench. According to the method provided by the invention, axial clearance of the reducer installed with the method has high precision; precision has good stability; service life of the reducer shaft components is prolonged; maintenance frequency is reduced; and use cost is reduced.

Description

technical field [0001] The present invention relates to a method for adjusting the bearing gap of a reducer for lifting an ocean platform, and also relates to a special tooling for realizing the method for adjusting the bearing gap of a reducer for lifting an ocean platform. Background technique [0002] Offshore platforms are structures that provide production and living facilities for activities such as drilling, oil production, transportation, observation, navigation, and construction at sea. The offshore drilling platform is composed of three integral legs, and each leg is composed of three sets of rack and pinion lifting systems. The lifting reducer with a speed ratio of more than 8000 is used to provide high torque output. Through the connection between the climbing gear and the rack The meshing process realizes the lifting of the platform. The lifting reducer is the guarantee of the super-large load and high stability of the platform lifting system. The lifting redu...

Claims

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Application Information

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IPC IPC(8): F16H57/022B23P19/00B23P19/10
Inventor 陈贻平朱才根奚宪张洋
Owner SHANGHAI ZHENHUA HEAVY IND GRP NANTONG TRANSMISSION MACHINERY
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