A test bench capable of detecting parameters of trenchless directional drilling
A technology of directional drilling and parameter detection, which is used in the testing of mechanical components, the testing of machine/structural components, and measuring devices, etc. It can solve the problems of low precision of drill pipe trajectory guidance and inability to detect parameters, so as to avoid force overload. , the effect of improving the accuracy
Active Publication Date: 2020-11-06
DALIAN MARITIME UNIVERSITY
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Problems solved by technology
[0006] According to the above-mentioned technical problems that the basic parameters of the drilling rig cannot be detected and the precision of the drill pipe trajectory is low, a test bench that can realize the detection of trenchless directional drilling parameters is provided
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Embodiment 1
[0037] When the power head of the drilling rig rotates and advances, the torque output from the central gear 1 of the slewing system is measured by the rotational speed torque sensor 5 through the gear reducer 2 and the coupling 3-1, and the rotational speed measured by the sensor is consistent with that of the two-stage deceleration. After the deceleration ratio is multiplied, the rotational speed of the drilling rig under this working condition is obtained; the sum of the jacking resistance on the drill bit guide plate and the frictional resistance of the drill pipe is the minimum WOB for attacking seabed mud during drilling, and the WOB size It is transmitted through the coupling 3-2 and measured by the pressure sensor 6; the propulsion of the drilling rig is driven by a hydraulic motor and meshes with the gear of the rack and pinion 9. The gear is fixed and the rack moves in translation. Measuring points X1, X2, X3, X4... The anti-seismic photoelectric displacement sensor 7...
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The invention provides a test bench capable of realizing trenchless directional drilling parameter detection, which comprises a drilling parameter detection device and a sample soil layer adjustment device, wherein the drilling parameter detection device comprises a rotary system center gear, a gear reducer, a coupling I, a speed and torque sensor, a coupling II, a pressure sensor, an anti-seismicphotoelectric displacement sensor, a drilling frame, a gear rack, a piezoelectric vibration sensor and a position sensor, and the sample soil layer adjustment device comprises a sample soil layer container and a support frame. According to the invention, the detection system is configured with sensors with high precision and stable performance in the process of a drilling machine, multi-channel engineering parameters are continuously measured in real time, and drilling parameters are recorded, thereby obtaining basic parameters such as the drilling pressure, the drilling speed and the rotating speed, understanding geological and physical characteristics of the drilling seabed and the working state of the drilling machine in real time, being capable of avoiding the occurrence of abnormal working conditions such as overload of force and breakage of a drill pipe, and being capable of being widely popularized in the technical field of sunken wreck simulation tests.
Description
technical field [0001] The invention relates to the technical field of underwater shipwreck simulation tests, in particular to a test bench capable of detecting parameters of trenchless directional drilling. Background technique [0002] Among the existing domestic and foreign shipwreck salvage techniques, the most commonly used technique is to attack the jack hole at the bottom under water. The whole process is to punch out a hole in the bottom of the ship with the impact of high-pressure water using the drill bit of the dredger, and pass the small steel wires through the bottom of the shipwreck and the large steel wires through the bottom step by step, so as to realize the rapid salvage of the sunken ship. [0003] At present, the jackhole drilling rig equipment designed based on the land trenchless technology is becoming more and more perfect, especially the underwater directional drilling rig equipment, that is, the development of the underwater directional mud tapping d...
Claims
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IPC IPC(8): G01M13/00
CPCG01M13/00
Inventor 陈英龙王俊杰张增猛侯交义宁大勇弓永军
Owner DALIAN MARITIME UNIVERSITY