Anchor rod torque conversion test device and test method
A technology for transforming tests and bolts. It is used to measure torque/torsional force and other directions during tightening, so as to achieve good test results, reduce the number of tests, and have a simple structure.
Pending Publication Date: 2020-10-30
山东盟鲁采矿工程有限公司
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Problems solved by technology
How to determine the appropriate installation torque value of different bolts under different combinations needs to be determined through repeated torque conversion tests. At present, there is no device for torque conversion tests.
Method used
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[0022] In order to clearly illustrate the technical features of the solution, the solution will be described below through specific implementation modes.
[0023] Such as figure 1 with 2 A bolt torque conversion test device is shown, including a test bench 1, and a side flange 3 fixed on the test bench along the axial direction of the bolt and several clamps 2. There are holes on the side flange for the bolt to pass through. The reserved hole 301, the test bench 1 stands on the ground through the table legs 101. The anchor system 4 used in the test of this embodiment includes a rod body 401 , an anchor tray 402 , a washer 403 and an anchor nut 404 .
[0024] This embodiment also includes an anchor dynamometer 5 located between the anchor tray and the anchor nut and pierced on the anchor rod, and a torque wrench 6 adapted to the anchor nut 404, the anchor nut and the anchor rod gauge A gasket 403 is provided between the dynamometer 5 and is worn on the anchor rod. The torque...
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Abstract
The invention relates to an anchor rod torque conversion test device and a test method. The anchor rod torque conversion test device comprises a test bench, and a sideline flange and a plurality of clamps which are sequentially fixed on the test bench along the axial direction of an anchor rod, wherein the sideline flange is provided with a preformed hole for the anchor rod to pass through. The anchor rod torque conversion test device further comprises an anchor rod dynamometer which is located between an anchor rod tray and an anchor rod nut and arranged on the anchor rod in a penetrating mode, and a torque wrench matched with the anchor rod nut. According to the anchor rod system, all gaskets, the anchor rod tray and the nut are in a separated state, can be freely combined and matched and are connected with the resin anchor rod in series to be assembled together, and underground matching and combination are simulated; the load value of the dynamometer and the torque value of the torque wrench are synchronously verified to obtain mounting loads in different torque states; the clamp clamps the tail part of the anchor rod, so that the anchoring effect of roadway anchor rod supporting is realized; ground operation of the test platform reduces the frequency of frequent underground tests and is safe and efficient; and the test device is simple in structure, convenient to install and good in test effect.
Description
technical field [0001] The invention relates to the technical field of mine bolt support, in particular to a test for bolts, in particular to a bolt torque conversion test device and a test method. Background technique [0002] At present, resin bolts are generally used for roadway support in the process of mine excavation and mining. The bolt preload is the source of active and timely support and the prerequisite to ensure the design performance of the bolt. [0003] The magnitude of the pre-tightening force applied during the construction process will directly affect the working state of the bolt, and in severe cases, it will cause the failure of the bolt support system. According to the requirements of the coal roadway bolt support technical specification, the pre-tightening force range of the bolt needs to reach 30%-60% of the yield force of the bolt. In general, the pre-tightening force of the bolt cannot be directly measured by a torque wrench, and an external connecti...
Claims
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IPC IPC(8): G01L5/24
CPCG01L5/24
Inventor 夏文营张庆振何源徐东康肖金杰杨小刚张烜赫
Owner 山东盟鲁采矿工程有限公司