Pipe joint separating force tester and testing method thereof
A technology of pipe joints and pull-off force, which is applied in the direction of applying stable tension/pressure to test the strength of materials, measuring devices, instruments, etc. Locking the envelope and other issues to achieve the effect of promoting better development, simple structure, and improved safety performance
Active Publication Date: 2011-04-13
海盐管件制造有限公司
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Problems solved by technology
Similarly, although the ultra-high pressure drilling hose joint can effectively improve the pull-out force of the pipe joint, it is difficult to better use the locking sleeve of this type of pipe joint because there is no device for testing the pull-out force performance of the pipe joint
[0004] To sum up, there is no device and method for testing the pull-out force performance of pipe joints under working conditions, so it is difficult to realize the reasonable use of pipe joints, and to a certain extent This limits the applicable surface of pipe joints, and at the same time, it is difficult to improve the overall performance of high-speed driving equipment
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[0025] see Figure 1 to Figure 2 , the pipe joint pull-off force testing machine in the present embodiment comprises a frame 1, a tension device 2 with a pull rod 21, a pull rod connecting bolt 3, a strain gauge 4, a connecting rod 5, a movable nut 6, and a device with 71 holes for pressurization. Pressure connection device 7, pressure source and oil collection box 8, wherein, the pressure source is an oil pressure type pressure source, that is, the pressure source in the present embodiment can provide pressure by means of oil pressure, and the pressure source among the present invention can also adopt Other forms of hydraulic pressure sources and even pneumatic pressure sources can also be used. The hydraulic pressure source and the pneumatic pressure source mentioned in the present invention are common knowledge to those skilled in the art, and will not be described in detail here. The tension device 2 in the present embodiment is a hydraulic cylinder type tension device. T...
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The invention relates to a pipe joint separating force tester and a testing method thereof. A device and a method for testing the separating force resistance of a pipe joint under the working state are absent at present. The invention is characterized in that: the tester comprises a frame, a tension device with a pull rod, a pull rod connecting bolt, a strain gauge, a connecting rod, a movable nut, a pressure source and a pressure connecting device provided with a pressurizing hole, wherein the tension device and the pressure connecting device are arranged on the frame; the pressure source is connected with the pressurizing hole in the pressure connecting device; a threaded connection hole is formed on the top of the pressure connecting device; the threaded connection hole is communicated with the pressurizing hole and is positioned under the pull rod; the upper end of the strain gauge is arranged at the bottom end of the pull rod through the pull rod connecting bolt; and the movable nut is arranged at the lower end of the strain gauge through the connecting rod and is positioned over the threaded connection hole. The invention is reasonable in structural design, easy to operate and convenient to use, and can test the separating force resistance of the pipe joint under the working state.
Description
technical field [0001] The invention relates to a pipe joint pull-out force tester and its test method, which is mainly used for testing the pull-out resistance performance of pipe joints, especially for testing pipe joints installed on driving equipment, such as for automobiles, trains, and subways A pipe joint on a ship, an airplane, etc. belongs to a device for testing the performance of a pipe joint and a test method thereof. Background technique [0002] At present, the tests used to test the performance of pipe joints are mainly composed of pressure test, burst test, pulse test, vibration test, air tightness test and vacuum test. Pipe fittings on stationary equipment do have good results. However, due to the increasing use of pipe joints, pipe joints are installed in the pipelines of many high-speed driving equipment, such as automobiles, trains, subways, ships, airplanes, etc. Using the above six test methods to test the performance of pipe joints installed on high-...
Claims
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IPC IPC(8): G01N3/08G01N3/10G01N3/02
Inventor 耿志学
Owner 海盐管件制造有限公司