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Construction method for improving centring accuracy of racks of steel tube perforating machines

A construction method and piercing machine technology, which are applied to metal rolling stands, metal rolling mill stands, manufacturing tools, etc., can solve the problems of large crane weight, time-consuming and laborious, low stand centering accuracy, etc. Construction cost, safe and practical operation, and the effect of improving installation accuracy

Active Publication Date: 2015-03-25
CHINA MCC 2 GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method needs to be installed with a large truck crane or a crawler crane. There are reasons such as narrow construction site, closed roof of the workshop building on the construction site, insufficient maximum hoisting weight of the crane, and limited turning radius of the large crane, which makes it difficult to hoist and adjust the equipment.
Due to the limitation of the turning radius of the large crane, the roof of the closed factory building needs to be removed, and the safety hazard of equipment hoisting is relatively large. In the end, the centering accuracy of the frame is low, and the crane takes a long time, which is time-consuming and laborious

Method used

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  • Construction method for improving centring accuracy of racks of steel tube perforating machines
  • Construction method for improving centring accuracy of racks of steel tube perforating machines
  • Construction method for improving centring accuracy of racks of steel tube perforating machines

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Embodiment Construction

[0013] Referring to the accompanying drawings, in Baotou Steel's seamless φ159 continuous rolling steel pipe production line project, the installation of the piercing machine is taken as an example to describe the present invention:

[0014] The piercing machine is arranged between the 12th and 13th lines of the BC span of the factory building, on a 13-meter reinforced concrete platform. The piercing machine body equipment is designed and manufactured by German SMS group (SMS group). The main frame of the punching machine weighs about 180t, the main machine weighs 260,000kg, and the overall dimensions are 4710mm×3624mm×7244mm. The piercing machine equipment is delivered in parts and assembled on site.

[0015] 1. Preparatory work before the construction method: first install the left and right bases 5 and 4 of the punching machine, and leave the size of the T-shaped key connecting the frame and internal components (center distance + key height). Then the left and right side ...

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Abstract

The invention relates to a construction method for improving the centring accuracy of racks of steel tube perforating machines, which is characterized in that left and right racks are assembled inside a base, and internal components are arranged; and a one-to-four synchronous hydraulic jack is controlled by using a hydraulic control device to realize the synchronous propulsion of the base and the racks, and a grating displacement sensor is adopted for positioning. The construction method disclosed by the invention has the advantages of accurate rack centring, low construction cost, and simple and safe operation.

Description

technical field [0001] The invention relates to a construction method for improving the centering precision of a steel pipe piercing machine frame, and belongs to the field of installation and construction of metallurgical machinery and equipment. technical background [0002] The steel pipe piercing machine is the key equipment of the seamless steel pipe production line, and the quality of the piercing machine installation project directly affects the product quality of the seamless steel pipe. In the previous installation of punching machine equipment, the overall hoisting method was adopted, that is, firstly, the punching machine archway was assembled on the assembly platform, and then the assembled punching machine was hoisted to the installation position as a whole, and finally the installation was adjusted. This method needs to be installed with a large truck crane or a crawler crane. There are reasons such as narrow construction site, closed roof of the workshop build...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B19/04B21B31/02
Inventor 徐宝英宋磊韩丽华景福才谭亨达彭喜平张立杰范清厚王丽茹徐艳荣白素平
Owner CHINA MCC 2 GRP CO LTD
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