Probe bracket for pipeline magnetic flux leakage detector
A probe bracket and detector technology, applied in the direction of material magnetic variables, etc., can solve the problem of not ensuring that the probe detection surface is parallel to the detected surface, etc., and achieve the effect of simple structure, reliable detection data, and increased bonding area
Active Publication Date: 2016-08-03
CHINA PETROLEUM & CHEM CORP +1
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- Abstract
- Description
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Problems solved by technology
The magnetic flux leakage probe with this structure is mainly used to protect the probe detection surface from wear resistance and the probe from collision, but there are no technical measures to ensure that the probe detection surface is parallel to the detected surface and reduce mechanical vibration
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[0013] Now in conjunction with the accompanying drawings of the description, the present invention will be further described.
[0014] The probe bracket consists of a base, a connecting rod, a wear plate, a probe, a spring plate and screws. Both ends of the connecting rod 2 are movably connected with the base 1 and the wear-resistant plate 3 of the probe; four screw holes are evenly distributed on the right half of the base 1, and the spring plate is fixed by screws II9; 4 conical countersunk heads are evenly distributed on the wear-resistant plate 4 The screw hole is used to fix the probe 5 and the spring plate under the probe 5 through the screw I4; the base 1, the connecting rod 2, the wear-resistant plate 3 and the spring plate form a parallelogram hinge structure, which can make the probe always fit the wall of the pipeline to be tested, and the upper and lower The range of activities is large.
[0015] Among them, the spring leaf preferably adopts a double spring leaf s...
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The invention relates to a probe bracket for a pipeline magnetic flux leakage detector, which is used in the technical field of magnetic flux leakage non-destructive testing. The probe bracket for a pipeline magnetic flux leakage detector of the present invention consists of a base and a wear-resistant sheet parallel to the base through connecting rods distributed on both sides It is connected with the spring sheet to form a parallelogram hinge structure, wherein the upper and lower ends of the connecting rod are respectively hinged with the wear-resistant sheet and the base, and the upper and lower ends of the spring sheet are respectively fixedly connected with the wear-resistant sheet and the base. The probe bracket can ensure that the probe detection surface is always parallel to the base when the probe is at any height within the variable range. The damping ring and double reed structure can effectively reduce the vibration and noise during the probe scanning process and improve the detection accuracy.
Description
technical field [0001] The invention relates to a probe bracket of a pipeline magnetic flux leakage detector, which is applied in the technical field of magnetic flux leakage nondestructive detection. Background technique [0002] During the scanning process of the magnetic flux leakage detection probe, the detection surface of the probe is in non-parallel contact with the surface to be detected, and factors such as mechanical vibration caused by the rough detection surface will reduce the detection sensitivity and cause large errors in the detection results. The function of the probe bracket is to make the probe detection surface always parallel to the detected surface, and can effectively reduce the vibration and noise of the probe. [0003] The patent application with application number 200720097334 introduces a "magnetic flux leakage probe protection structure" magnetic flux leakage probe protection structure. The probe is placed at a certain distance from the steel pip...
Claims
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IPC IPC(8): G01N27/83
Inventor 张士华孙永泰史永晋王宏安田凯初新杰田海庆李杨颖程若凡
Owner CHINA PETROLEUM & CHEM CORP