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Adjustable method of welding and positioning adjustable screw type universal top and tie bars of hydraulic support

A welding positioning and hydraulic support technology, which is applied in welding equipment, auxiliary welding equipment, welding/cutting auxiliary equipment, etc., can solve the problems of low layout efficiency, poor dimensional control accuracy, high manufacturing cost, etc., and achieve the effect of low cost

Inactive Publication Date: 2016-02-24
CHINA COAL BEIJING COAL MINING MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Fixed size, one-time use, high consumption cost; unable to adjust according to actual deformation caused by different groups, poor dimensional control accuracy; low layout efficiency; need to use intact plates for blanking and processing, high manufacturing cost

Method used

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  • Adjustable method of welding and positioning adjustable screw type universal top and tie bars of hydraulic support
  • Adjustable method of welding and positioning adjustable screw type universal top and tie bars of hydraulic support

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specific Embodiment

[0023] Such as figure 2 As shown, it mainly includes three parts: ejector rod, threaded sleeve, and cushion block, which are highly repairable; the applicable size can be adjusted, the stroke is ≈200mm, and the types of ejector and tie bars are reduced; it can be reused, which greatly reduces the cost of use; it adopts Tr40× 7-thread structure, with adjustability, realizes size adjustment between different groups, which is of great significance for size control.

[0024] The concrete operation method of specific embodiment is as follows:

[0025] Adjust the top and tie bars to "control size -5mm" to reduce the difficulty of putting the top and tie bars in;

[0026] After putting it in, adjust the size to the required "control size" by rotating and adjusting, and fix the cushion block with the workpiece;

[0027] Measure and fine-tune again after point solidification to ensure dimensional accuracy;

[0028] The workpieces are grouped and welded in groups. After each group i...

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Abstract

The invention discloses a position-adjustable screw-type general ejector and tie bar for hydraulic support welding. The position-adjustable screw-type general ejector and tie bar comprises an ejector rod provided with a square cross-section structure on the middle portion, thread structures rotating oppositely are arranged at two ends of the ejector rod, and two thread bushings are respectively meshed with two ends of the ejector rod. Spacers easily damaged are arranged at the outer ends of the thread bushings. According to the principle of a screw-type jack, the position-adjustable screw-type general ejector and tie bar can be adjusted bidirectionally, easy to repair, reusable, adjustable, low in cost and high in generality and precision.

Description

technical field [0001] The invention relates to a welding positioning device for mining hydraulic support manufacturing industry, in particular to a hydraulic support welding and positioning adjustable screw type universal top and tie bars. Background technique [0002] In the hydraulic support manufacturing industry, a large number of plate welding is involved. Due to the large thickness of the plate and the corresponding high voltage and current parameters, welding thermal deformation will inevitably occur during the welding process, which will easily lead to manufacturing problems such as out-of-tolerance dimensions and difficult assembly. In order to reduce the uncontrollability of welding thermal deformation, the current method is to arrange top ribs and tie bars at key positions during the welding process to achieve size control. [0003] In the prior art, the roof and the tie bar structure, which are widely used to control the thermal deformation of welding, are all d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K37/04
Inventor 王震陈建忠
Owner CHINA COAL BEIJING COAL MINING MACHINERY