Crane slewing bearing replacement method
A technology of slewing bearing and replacement method, applied in cranes and other directions, can solve the problems of high replacement cost, long replacement cycle, and cumbersome replacement method.
Inactive Publication Date: 2017-01-04
CHINA SHENHUA ENERGY CO LTD +1
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Problems solved by technology
[0005] The purpose of the present invention is to provide a method for replacing the slewing bearing of a crane, which can solve the problems of long replacement cycle, cumbersome replacement method and high replacement cost in the existing replacement method of the slewing bearing of the crane
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[0033] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.
[0034] In the present invention, unless stated to the contrary, the used orientation words such as "upper and lower" usually refer to figure 1 above and below the crane shown, "left, right" usually refers to figure 2 Left and right sides of crane slew bearing shown.
[0035] The present invention provides a method for replacing the slewing bearing of a crane, the crane includes a base part 4 and a slewing part 3 rotatably supported by the base part 4 through a slewing bearing 9, the replacement method includes: S1: placing the base The part 4 is separated from the rotary part 3 with the rotary bearing 9; S2: fixedly install the jacking support 7 on the base p...
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The invention relates to the field of port machinery maintenance and discloses a crane slewing bearing replacement method. A crane comprises a foundation part and a rotary part rotationally supported by the foundation part by means of a rotary bearing. The replacement method includes the steps that S1, the foundation part is separated from the rotary part with the rotary bearing; S2, a jacking supporting base is fixedly installed on the foundation part, and the rotary part with the rotary bearing is jacked to a preset height by means of the jacking device installed on the jacking supporting base, wherein the jacking supporting base is close to and lower than the rotary bearing; S3, the rotary bearing is detached from the rotary part by means of the gap between the rotary part and the foundation part; S4, another rotary bearing is installed on the foundation part, the jacking device is operated so that the rotary part can descend, and the rotary bearing is installed on the rotary part. The method can solve the problems that an existing replacement method is long in replacement period, complex and high in replacement cost.
Description
technical field [0001] The invention relates to the field of port machine maintenance, in particular to a method for replacing a slewing bearing of a crane. Background technique [0002] Cranes are general-purpose port handling machinery that perform loading and unloading operations at the front of the port terminal. The crane's rotating mechanism, hook or grab and other spreaders are installed on the base of the crane, which can be rotated, lifted and luffed within the working range. Among them, the slewing bearing of the crane plays a very important role in the normal operation of the crane. If there is a problem with the slewing bearing, the entire gantry crane cannot continue to work, so it is very important for the replacement and repair of the gantry crane bearing. [0003] For a general crane, the weight of the slewing part 3 above the slewing bearing of the crane can generally reach more than a hundred tons, and because the position of the slewing bearing is very sp...
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IPC IPC(8): B66C23/84
CPCB66C23/84
Inventor 李景玺王立海刘嵩迟金生魏宝庆杨程杰许艳
Owner CHINA SHENHUA ENERGY CO LTD