Method for installing for elastic anti-vibration pad of main engine
An installation method and vibration-absorbing pad technology, which are used in transportation and packaging, propulsion engine, ship propulsion, etc., can solve problems such as large noise and large vibration, and achieve the effect of reducing mechanical vibration and noise.
Inactive Publication Date: 2014-02-19
JIANGSU ZHENJIANG SHIPYARD GROUP
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[0003] Purpose of the invention: The present invention provides an installation method of the elastic damping pad of the main engine that can effectively reduce noise and vibration, and overcome the defects of high noise and large vibration existing on high-power full-turn tugboats
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[0021] The present invention will be described in detail below in conjunction with the accompanying drawings and specific examples.
[0022] like Figure 1~5 As shown, the installation method of the elastic damping pad of the main engine according to the present invention includes the following steps:
[0023] (1) According to the result of the rough arrangement of the shafting, use the limit block 1 to support and fix the installation position of the main engine 20 and the elastic damping pad 2;
[0024] According to the results of the rough arrangement of the shafting, the installation position of the main engine 20 is fixed by the limit block 1, and the horizontal state of the ship should be kept as far as possible when the main engine 20 is positioned and the elastic damping pad 2 is installed. The axis should be rechecked after installation, and each deviation should be within the allowable range. If it exceeds the range, it should be re-arranged.
[0025] (2) Adjust t...
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The invention discloses a method for installing for an elastic anti-vibration pad of a main engine, wherein the elastic anti-vibration pad is to be connected between the main engine and a hull base. The method for installing comprises the following installation steps: according to a shafting coarse arrangement result, installation sites of the main engine and the elastic anti-vibration pad are supported and fixed through limiting blocks; the elastic anti-vibration pad is adjusted till all central shock absorbers can rotate freely; working gaps of the central shock absorbers are adjusted and the central shock absorbers are clocked and fixed; an epoxy frame is obtained through measuring, processing and teeming, and a fastening bolt hole is machined; an epoxy cushion block is obtained through teeming, and a fastening bolt is screwed down so that the elastic anti-vibration pad and the hull base can be fixed; the elastic anti-vibration pad is readjusted till requirements are met. According to the method for installing, the main engine is in elastic connection with the hull base through the elastic anti-vibration pad, vibration caused by operation of the main engine is absorbed twice through the elastic anti-vibration pad and the epoxy cushion block, as a result, mechanical vibration and noise transmitted to a hull through the hull base can be mitigated, and the main engine can be prevented from being affected by external impact and vibration.
Description
technical field [0001] The invention belongs to the technical field of ship engineering, and in particular relates to a method for installing an elastic damping pad of a main engine. Background technique [0002] The International Labor Organization pays more attention to the improvement of the crew's working and living environment and puts forward new requirements. In the IMO Resolution A468 (XII) "Ship Noise Measurement Standard", it clearly stipulates that the noise of the crew's cabin, control room, wheelhouse and other places With the new requirements, the requirements for noise and vibration of ships have also increased. However, along with the increasing number of dock facilities and the number of ships docked in the port, and the size of the ship is getting bigger and bigger, it is necessary to provide a flexible large-thrust port tugboat to assist large ships to leave the dock. This type of ship is characterized by its small size and high thrust, flexible operation...
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Inventor 朱春雷
Owner JIANGSU ZHENJIANG SHIPYARD GROUP