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L-shaped anchor rod drawing test clamping device for highway engineering

A pulling test and clamping device technology, applied in measuring devices, using stable tension/pressure testing material strength, instruments, etc., can solve the problems of L-shaped member pulling experiments with simple structure and cannot be deformed, and achieve Reasonable structure, good pre-clamping function, good mechanical properties

Inactive Publication Date: 2019-04-30
李少祯
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In order to solve the deficiencies of the prior art, the present invention provides a clamping device for L-shaped bolt pulling test for highway engineering, which solves the problem that the existing testing device has a simple structure, and most of them are used for pulling I-shaped bolts. And the problem that it is impossible to do pull-out experiments on special-shaped L-shaped components

Method used

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  • L-shaped anchor rod drawing test clamping device for highway engineering
  • L-shaped anchor rod drawing test clamping device for highway engineering
  • L-shaped anchor rod drawing test clamping device for highway engineering

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Experimental program
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Embodiment Construction

[0059] Anchor pullout test clamping device for highway engineering, used for pullout mechanical performance experiments of steel anchors, consists of a static part and a movable part as a whole:

[0060] Static part:

[0061] The power adopts hydraulically controlled hollow jacks, which are obtained by purchasing. The best model is: JRCH-206, produced by Taizhou Nanfang Hydraulic Tool Manufacturing Co., Ltd. JRCH series hollow jacks not only have all the functions of ordinary jacks, but also have the ability to pull Extension function, and for the use of steel cables, cables, and shafts. The supporting screw, connector and anchor can also be used as a puller. It is mainly composed of three parts: hollow jack 100, manual pump and high-pressure oil pipeline. The manual pump delivers high-pressure oil to the jack through the oil pipeline. When the force of the jack acting on the bolt reaches the anchorage end of the bolt, read the reading of the pressure gauge. It is the anchor...

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Abstract

The invention discloses an L-shaped anchor rod drawing test clamping device for highway engineering, and provides a special tool. The device comprises a drawing instrument, a hollow jack, a steel cylinder, a base, an adjusting cylinder, a locking disc, a force equalizing disc and a pull rod. The drawing instrument controls the action of the hollow jack; forward threads and reverse threads are respectively arranged at the upper end and the lower end of the adjusting cylinder, and the upper end and the lower end are respectively connected with the steel cylinder and the base through the threads;a self-locking mechanism I for clamping an L-shaped anchor rod is arranged in the center of the locking disc, the pull rod penetrates through the hollow jack, the lower end of the pull rod is locatedin the center of the force equalizing disc, and the upper end of the pull rod is clamped by a self-locking mechanism II. The device is good in mechanical property; through the support by the cylinderstructure, the L-shaped anchor rod to be tested is located in the center of the cylinder structure and located on the same vertical line with the hollow jack, so that no eccentric loading force exists, and accurate experiment data can be obtained.

Description

technical field [0001] The invention relates to the technical field of pull-out experiment devices for anchor rods commonly used in highway engineering. Background technique [0002] In new construction, reconstruction and expansion projects of highways, such as embankment slope reinforcement, tunnel surrounding rock initial support, tunnel secondary lining concrete reinforcement, bridge and other structural concrete reinforcement projects, right-angle hook anchors and L-shaped anchors are widely used Its role in engineering is to increase the bond strength, shear strength and bearing capacity of reinforced concrete. [0003] The anchoring performance of the hook anchor is tested by the test, and the pullout tester is usually used together with the hollow jack for the pull-out test. This structure can only be verified for the I-shaped anchor, and cannot be verified for the L-shaped member of the opposite sex. Therefore, It is necessary to develop a clamping device specially...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/02G01N3/10
CPCG01N3/02G01N3/10
Inventor 李少祯王安杰
Owner 李少祯
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