Expanding device of moving block

A technology of moving blocks and expanding blocks, which is applied in the processing or treatment of steel pipes, can solve the problems of small heat transfer coefficient, large thermal expansion coefficient, and large shrinkage of stainless steel plates, and achieve low manufacturing costs, reduce or weld deformation, and eliminate The effect of welding deformation

Inactive Publication Date: 2011-03-30
JIANGSU UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the small heat transfer coefficient and large thermal expansion coefficient of the stainless steel pressure vessel, the stainless steel pressure vessel has...

Method used

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  • Expanding device of moving block
  • Expanding device of moving block
  • Expanding device of moving block

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Experimental program
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Embodiment Construction

[0015] An expansion device for a moving block of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0016] Such as figure 1 with figure 2 As shown, an expansion device for a moving block of the present invention consists of a pull rod 1, an expansion head 2, an expansion block 3, a guide plate 4, a sleeve 5, a positioning block 6, a locking handle 7 and a stop plate 8 Composition; the pull rod 1 is placed in the T-shaped sleeve 5, and one end of the pull rod 1 protruding from the T-shaped sleeve 5 is sequentially fitted with a circular stop disc 8 with a central hole, and a regular hexagonal cone The expansion head 2 and the circular guide plate 4; the pull rod 1 stretches out from the T-shaped sleeve 5 and the other end of the threaded end passes through the hole provided by the positioning block 6 and is threadedly connected with the locking handle 7; the regular hexagon The connection between the expansion hea...

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PUM

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Abstract

The invention discloses an expanding device of a moving block, comprising a pull rod, an expanding head, an expanding block, a guiding disc, a sleeve barrel, a positioning block, a locking handle and a stop disc, wherein the pull rod is arranged in the sleeve barrel; one end of the pull rod is extended out of the sleeve barrel and is sequentially sleeved with the circular stop disc, the pyramidal expanding head and the circular guiding disc which are respectively provided with a center hole; the other end of the pull rod, which is extended out of the sleeve barrel and is provided with screw threads, passes through a hole arranged on the positioning block and is connected with the locking handle by screw threads; the expanding head is fixedly connected with the pull rod; and a plurality of T-shaped grooves connected with the expanding block are arranged on the pyramidal surface of the expanding head by equal distance. The expanding device of the moving block has simple structure and low manufacturing cost, is convenient to assemble and disassemble and can effectively reduce or eliminate the welding deformation of a vessel or a steel tube.

Description

technical field [0001] The invention belongs to the technical field of processing or treating steel pipes such as pressure vessels, and relates to an expansion tool for welding steel pipes such as pressure vessels. Background technique [0002] Pressure vessel is a kind of pressure-bearing equipment widely used in almost all industrial production and daily life. Especially for stainless steel pressure vessels, due to the complicated conditions of use, the medium is special, such as flammable, toxic, corrosive, etc.; and there is a danger of explosion. Once an accident occurs, the consequences will be catastrophic, which will bring huge losses to the country, enterprises, and personal life and property. Therefore, it will be extremely important to ensure the manufacturing quality of stainless steel pressure vessels. However, due to the small heat transfer coefficient and large thermal expansion coefficient of the stainless steel pressure vessel, the stainless steel pressure...

Claims

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Application Information

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IPC IPC(8): B21D3/14
Inventor 周根明周云祥
Owner JIANGSU UNIV OF SCI & TECH
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