Drilling device and method for detecting residual stress on inner wall of pipe
A residual stress and drilling device technology, applied in measuring devices, force/torque/work measuring instruments, instruments, etc., can solve problems such as difficult to determine the position of blind holes, difficult to control the depth of drilling blind holes, etc., to ensure stability and accuracy effects
Active Publication Date: 2019-11-01
太仓鸿羽智能科技有限公司
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Problems solved by technology
However, it is difficult to control the depth of drilling blind holes, and it is difficult to determine the position of blind holes
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[0031] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:
[0032] exist figure 1 In the three-dimensional schematic diagram of the use state of the drilling device for detecting the residual stress on the inner wall of the pipe shown, the pipe to be tested 5 is placed on the base 9 with the top surface as a plane, which is placed in the lower positioning member 10, and the side wall of the positioning member There are three screw holes with built-in bolts. The fixed round cover 3 placed on the upper end surface of the pipe to be tested is a ring with a top plate, and its side wall is provided with three screw holes with bolts 4 inside. The top plate of the fixed dome is provided with a central through hole, and a leading screw 1 passes through the central through hole, and the leading screw links to each other with the driving motor 12 provided on the top plate of the fixed dome through the screw drive motor fixing ...
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The present invention provides a device and a method for drilling for detection of a residual stress at an inner wall of a tube. The device and the method are a device applied to detection of a residual stress at an inner wall of a tube and designed by employing a blind hole method for detection of a residual stress and an application method by employing the method. The device mainly comprises a fixed rounded lid, a screw, an epicyclic gear, a positioning chunk, a telescoping locating detent, a blind hole positioning module and an electric drill. Stability and precision of the detection process are ensured. The application method depends on a plurality of drive motors to achieve fixing of a device, positioning of blind holes and accurate drilling of the blind holes in the detection processof the residual stress at the inner wall of the tube. A drill bit and infrared rays are relatively rest, and the distance of intersection points of the drill bit and the two infrared rays remains unchanged to provide convenience for controlling depth of the punching. The device and the method for drilling for detection of the residual stress at the inner wall of the tube can perform punching of blind holes at the inner wall of the tube and can perform punching of through holes at the inner wall of the tube are simple in operation and high in precision, and can be applied to tubes with a plurality of aperture diameters.
Description
technical field [0001] The invention relates to a device and method for detecting residual stress by using a blind hole method. Background technique [0002] Petroleum and natural gas are the most widely used energy sources in my country and the world. The exploitation and transportation of the two cannot be separated from the application of welded steel pipes. However, the deep sea and underground environments are very harsh and complex. As a transport carrier, it has been working in low temperature, high pressure, and strong corrosion environments for a long time. It not only bears the combined effects of internal and external pressure, axial force, bending moment, etc. To withstand the dynamic load of alternating external pressure, waves and ocean currents, there are very high requirements for the delivery pressure of welded steel pipes. During the welding process, due to the large temperature difference between the circumferential and radial directions of the weld, the c...
Claims
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IPC IPC(8): G01L5/00
CPCG01L5/0047
Inventor 李大龙李艳亭苗宁汪卫星王昊刘建宁赵紫鹏
Owner 太仓鸿羽智能科技有限公司