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A front snap jack and tool anchor device for prestressed tension

A jack and front clip technology, which is used in bridge construction, erection/assembly of bridges, and the use of stable tension/pressure to test the strength of materials, etc., can solve the problem of inability to detect the retraction of tool clips

Active Publication Date: 2021-08-06
WUHAN SIMUTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] In the above schemes, oil pressure is used to detect the tension force, and the retraction of the tool clip cannot be detected at the same time.

Method used

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  • A front snap jack and tool anchor device for prestressed tension
  • A front snap jack and tool anchor device for prestressed tension
  • A front snap jack and tool anchor device for prestressed tension

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] like figure 2 As shown, the front pin tool anchor device includes a tool anchor disk 100, a front push plate 200, a push plate 300, a front push sleeve 400, a tool chip 500, a returning rod 600, a front push spring 700, and retractive rod 800; the rear end of the tool anchor disk 100 is provided with the front push plate 200, and the front end of the tool anchor disk 100 is provided with a push plate 300; a through hole is provided on the tool anchor disk. One end of the front push sleeve 400 is attached to the rear end of the passage, and the other end of the front push sleeve 400 is located outside the through hole and is connected to the front push plate 200; the tool clip 500 mount In the middle of the through hole, the front push sleeve 400 is connected to one end in the through hole; one end of the back push rod 600 is in the back push plate 300, the backup The other end of the rod 600 passes through the front end of the through hole and is connected to the tool clamp...

Embodiment 2

[0056] like image 3 As shown, the front pin tool anchor device includes a tool anchor disk 100, a front push plate 200, a push plate 300, a front push sleeve 400, a tool chip 500, a returning rod 600, a front push spring 700, and retractive rod 800; the rear end of the tool anchor disk 100 is provided with the front push plate 200, and the front end of the tool anchor disk 100 is provided with a push plate 300; a through hole is provided on the tool anchor disk. One end of the front push sleeve 400 is attached to the rear end of the passage, and the other end of the front push sleeve 400 is located outside the through hole and is connected to the front push plate 200; the tool clip 500 mount In the middle of the through hole, the front push sleeve 400 is connected to one end in the through hole; one end of the back push rod 600 is in the back push plate 300, the backup The other end of the rod 600 passes through the front end of the through hole and is connected to the tool clamp ...

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PUM

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Abstract

The invention relates to a front clamping jack and tool anchor equipment for prestress tension, comprising a front clamping tool anchor device and a front clamping jack with a load cell; the front clamping tool anchor device comprises a tool anchor plate, Front push plate, back push plate, front push sleeve, tool clip, back push rod, front push spring and retraction probe rod; the front clamp jack includes jack outer cylinder, jack rear baffle, jack front baffle , a load cell, a limit plate mounting seat and a jack piston; the front clamp tool anchor device is set in the jack piston of the front clamp jack. While saving the steel strands, the present invention can also detect the retraction amount of the tool clip by retracting the probe rod, thereby improving the tensioning effect and the tensioning control precision.

Description

Technical field [0001] The present invention relates to the field of bridge prestressing tensile tests, and more particularly to a prestressed tufts with a pre-jack brain and a tool anchor device. Background technique [0002] The traditional prestressed bridge is used for the jack of the jack into the top of the heart, when working, the steel strand, the working anchor and the working clip are completed in the tension, will be packaged in the prestressed member; beyond the work clip The steel strand will leave 5 to 10 mm outside the work clip, and the remainder is removed, and the steel stranded is treated as a waste steel, and a railway beam has completed steel stranded wire. More than 10 million yuan. [0003] In order to reduce the waste of steel stranded pair, each Zhanglan equipment supplier proposes a variety of tension of steel stranded tension (front clip jack), and a common feature in all programs is to make tool anchors and The tool clip is internally inside the jack, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/08E01D21/00E01D101/28
CPCE01D21/00E01D2101/28G01N3/08
Inventor 周晓杨邓仁堂刘新平肖路明
Owner WUHAN SIMUTECH CO LTD
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