Constant-resistance and large-deformation anchor shank tension meter
A constant-resistance large-deformation, bolt tension meter technology, applied in the direction of applying stable tension/pressure to test the strength of materials, measuring devices, instruments, etc. Problems such as low bearing capacity, to achieve long service life, reduce labor intensity, and high bearing capacity
Active Publication Date: 2013-05-29
CHINA UNIV OF MINING & TECH (BEIJING)
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Problems solved by technology
[0003] The purpose of the present invention is to provide a constant-resistance large-deformation bolt tension meter to solve the problems that the existing bolt tension meter has a small range, low bearing capacity, and inability to cyclically pressurize, etc.
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[0015] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.
[0016] figure 1 Schematically shows the main structure of the preferred embodiment of the present invention, as shown, the preferred embodiment mainly includes the hollow jack 13 for tensioning the anchor rod, the rotating device for controlling the rotation angle of the hollow jack 13, and the control hollow jack 13 The lifting device with the height of the rotating device, the pneumatic hydraulic pump 1 that drives the hollow jack 13, and the flatbed truck 4 that moves the lifting device. Since the hollow jack 13 is a mature technology, it will not be repeated here.
[0017] Such as figure 1 As shown, the hollow jack 13 is connected to the reversing valve 12 of the hydraulic pump 1 through a hydraulic pipe (not marked in the figure). The hydraulic pump 1 in this preferred embodiment is a pneumatic hydraulic pump, which can realize...
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Abstract
The invention provides a constant-resistance and large-deformation anchor shank tension meter which comprises a pull rod, a hollow jack for tensioning an anchor shank, a rotating device, a lifting device and a first hydraulic pump, wherein the rotating device is used for controlling the rotating angle of the hollow jack; the lifting device is used for controlling the height of the hollow jack andthe height of the rotating device; the first hydraulic pump is used for driving the hollow jack to operate; the hollow jack is fixed on the rotating device; and the rotating device is arranged on thelifting device. The constant-resistance and large-deformation anchor shank tension meter provided by the invention has the advantages of wide measuring range, high bearing capacity, simpleness for operation and effectively-reduced labor intensity.
Description
technical field [0001] The invention relates to an anchor tension gauge, in particular to a constant resistance and large deformation anchor tension gauge with large elongation. Background technique [0002] In mining roadway or tunnel support, bolt is the most widely used and most used supporting equipment. With the continuous deepening of the mining depth, the surrounding rock of the roadway often shows the characteristics of large deformation of soft rock. The existing anchor rods have low elongation and cannot adapt to the characteristics of large deformation of the surrounding rock of the roadway, which will lead to the failure of supporting equipment such as bolts. And then cause roadway roof fall, landslide and other accidents. In order to solve this problem, Chinese patent application 201010196197.2 discloses a constant-resistance and large-deformation bolt with a large elongation rate, and its elongation can reach 600-800mm. Meet the detection requirements of this...
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IPC IPC(8): G01N3/10G01N3/02
Inventor 何满潮郭志飚王炯杨军
Owner CHINA UNIV OF MINING & TECH (BEIJING)