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Jacking device for replacing saddle arm of rotating bearing of continuous casting rotating table and construction method of jacking device

A technology of jacking device and slewing bearing, which is applied in the direction of lifting device, etc., to achieve the effect of reducing the risk of production shutdown and low cost

Inactive Publication Date: 2016-01-13
SHANGHAI ERSHIYE CONSTR CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a saddle arm jacking device for replacing the slewing bearing of the continuous casting turret and its construction method, so as to solve the problem that the slewing bearing must be replaced without special hoisting tools

Method used

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  • Jacking device for replacing saddle arm of rotating bearing of continuous casting rotating table and construction method of jacking device
  • Jacking device for replacing saddle arm of rotating bearing of continuous casting rotating table and construction method of jacking device
  • Jacking device for replacing saddle arm of rotating bearing of continuous casting rotating table and construction method of jacking device

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Embodiment 1

[0030] Take the bearing replacement of the continuous casting rotary table with a weight of 224 tons and a bearing diameter of 4325mm as an example, as follows:

[0031] Such as Figure 1~3 As shown, a saddle arm jacking device for replacing the slewing bearing of a continuous casting turret includes a saddle arm support device 1 , a hydraulic jacking device 2 , and a bearing lateral movement support 3 .

[0032] The saddle arm supporting device 1 includes a steel structure load-bearing support 4 under the saddle arm 6 of the turntable and a rigid reinforcement member 5 inside the turntable. The steel structure load-bearing support 4 is superimposed directly below the saddle arm 6 using 400H-shaped steel wells. In addition, there is a gap for placing a hydraulic jack 11 between the steel structure load-bearing support 4 and the saddle arm 6, and the internal rigid reinforcement 5 of the turntable adopts 4 seamless steel pipes of D273*12, which are welded to the top beam of the...

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Abstract

The invention relates to a jacking device for replacing a saddle arm of a rotating bearing of a continuous casting rotating table and a construction method of the jacking device. The method includes the steps that a saddle arm supporting device is arranged, four hydraulic jacks of the same model are placed at the corresponding positions of the saddle arm, the hydraulic jacks are started, the lifting heights keep consistent, and jacking is performed in segments till the rotating bearing can transversely move and will not make any contact with a rotating table body; after the bearing is slowly pulled to a bearing transverse movement support through a chain block, a new bearing is allocated and transported to the bearing transverse movement support; after a collecting and guiding rail of the new bearing is pulled into a base and centered, the bearing is lifted, an erected steel pipe is detached, and the bearing is totally in place; and a body falls back; a saddle arm supporting system is detached, a hydraulic jacking system is detached, and the transverse movement support is detached. According to the jacking device, the whole rotating table body does not need to be hoisted away, the hydraulic synchronous jacking technology is adopted, and transverse replacement of the rotating large bearing is achieved; and the whole device is made of common steel materials, and cost is low.

Description

technical field [0001] The invention belongs to the technical field of iron and steel production in the metallurgical industry, and in particular relates to a saddle arm jacking device for replacing a rotary bearing of a continuous casting rotary table and a construction method thereof. Background technique [0002] During the iron and steel casting process, the turret is installed on the casting platform between the molten steel tank receiving span and the casting span in the continuous casting machine workshop. And through the rotation and lifting mechanism of the equipment, the molten steel tank is rotated 180° and transferred to the casting position for casting. The large bearing that enables the turntable to rotate has three rows of rollers, which can bear and transmit vertical loads, horizontal loads and overturning moments. The inner ring and the base are connected by high-strength bolts, and the outer ring (with gear ring) is connected by high-strength bolts. It is ...

Claims

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Application Information

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IPC IPC(8): B66F11/00
Inventor 王振平岳齐贤刘振雄
Owner SHANGHAI ERSHIYE CONSTR CO LTD
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