CN-122017026-A - Acoustic wave detection device and rock acoustic wave test board

Abstract

The invention relates to the technical field of mechanical testing equipment, in particular to an acoustic wave detection device and a rock acoustic wave test table, wherein the acoustic wave detection device comprises a base, the base is provided with a bearing table, the bearing table is provided with a plurality of detection stations, a mounting assembly is used for mounting a test piece on the bearing table, the detection assembly comprises a moving mechanism, a floating centering mechanism, a clamping and fixing mechanism and a detection mechanism cleaning assembly, the cleaning assembly comprises a mounting boss, a pressing trigger mechanism and a wiping mechanism, the pressing trigger mechanism is pressed when the clamping and fixing mechanism is clamped on the mounting boss, the wiping mechanism is triggered to be opened when the triggering opening mechanism is pressed, and the wiping mechanism is used for wiping the detection mechanism. The invention realizes high-precision self-adaptive centering, constant-pressure stable coupling and automatic cleaning of the coupling agent after test of the transducer and the test piece by arranging the multi-station bearing table, the detection component integrating vision centering and floating adjustment and the triggering type automatic cleaning component.

Inventors

• XING XUEYANG
• LIU FENG
• Lei Yuanwei
• Kong Chuiran
• ZHANG HAO

Assignees

• 山东航空学院

Dates

Publication Date

20260512

Application Date

20260310

Claims (10)

1. 1. An acoustic wave detection device, comprising: The device comprises a base, wherein the base is provided with a bearing table, and the bearing table is provided with a plurality of detection stations; the mounting assembly is used for mounting the test piece on the bearing table; The detection assembly comprises a moving mechanism, a floating centering mechanism, a clamping fixing mechanism and a detection mechanism, wherein the moving mechanism is used for driving the detection mechanism to move, the floating centering mechanism is used for adjusting the position of the detection mechanism in a horizontal plane so as to adapt to the position error of a test piece, the clamping fixing mechanism is used for clamping the test piece when the detection mechanism is contacted with the test piece, and the detection mechanism is used for detecting the internal damage condition of the test piece; The cleaning assembly comprises an installation boss, a pressing trigger mechanism and a wiping mechanism, wherein the installation boss is arranged on the bearing table, the pressing trigger mechanism is pressed when the clamping and fixing mechanism clamps on the installation boss, the wiping mechanism is opened when the triggering opening mechanism is pressed, the wiping mechanism is arranged on the installation boss, and the wiping mechanism is used for wiping the detection mechanism.
2. 2. The acoustic wave detecting apparatus of claim 1, wherein the mounting assembly comprises fixing bases, the fixing bases are respectively disposed at two sides of the detecting station, the fixing bases are connected to the bearing table through bolts, and the fixing bases are used for fixing two sides of the test piece.
3. 3. The acoustic wave detecting apparatus of claim 1, wherein the base is provided with a base plate on both sides, the base plate is provided with a circular guide rail, the moving mechanism comprises a moving block and a moving cylinder, the moving block is slidably connected to the circular guide rail, the moving block is provided with the moving cylinder, and the detecting mechanism is arranged in the moving cylinder.
4. 4. The acoustic wave detecting apparatus of claim 3, wherein the detecting mechanism comprises a mounting table, a movable rod, a transducer and a pressure sensor, the mounting table is connected to the movable cylinder, the movable cylinder is used for driving the movable rod to move, the movable rod is movably connected to the mounting table, and the transducer and the pressure sensor are arranged on the movable rod.
5. 5. The acoustic wave detection device according to claim 4, wherein the mounting table is provided with a limit groove, the floating centering mechanism comprises a limit spring and a limit ring, a plurality of limit springs are arranged around the limit groove, two ends of each limit spring are respectively connected with the side wall of the limit groove and the limit ring, and the limit ring is sleeved on the movable rod.
6. 6. The acoustic wave detecting apparatus of claim 4, wherein the movable rod is provided with a tapered portion, the clamping and fixing mechanism comprises a roller, a clamping block and a return spring, the clamping block is rotatably connected to the mounting table, the non-clamping end of the clamping block is provided with the roller, the return spring is arranged at the joint of the clamping block and the mounting table, and the return spring is used for enabling the roller to be attached to the tapered portion.
7. 7. The acoustic wave detecting apparatus of claim 6, wherein the wiping mechanism comprises a wiping motor, a connector and a wiping block, the wiping motor is connected to the mounting boss, the output end of the wiping motor is connected to the connector, and the connector is connected to the wiping block.
8. 8. The acoustic wave probe apparatus of claim 7, wherein the pressing trigger mechanism includes a self-resetting switch disposed on the mounting boss, the self-resetting switch being abutted against the clamping block when the clamping block is clamped to the mounting boss, and the wiping motor being started at this time.
9. 9. The acoustic wave probe apparatus of claim 3, wherein the mounting boss and the inspection station are circular in profile, and the circular guide rail trace passes through the centers of the mounting boss and the inspection station.
10. 10. A rock acoustic test stand comprising an acoustic wave probe apparatus as claimed in any one of claims 1 to 9.

Description

Acoustic wave detection device and rock acoustic wave test board Technical Field The invention relates to the technical field of mechanical testing equipment, in particular to an acoustic wave detection device and a rock acoustic wave test board. Background In the fields of rock mechanics and engineering geology, acoustic wave detection of indoor rock test pieces is an important means for evaluating physical and mechanical properties of rock mass and detecting internal damage degree. By measuring the propagation speed of sound waves in a test piece, parameters such as the integrity, density, elastic modulus and the like of rock can be indirectly reflected, and the method is widely applied to rock mass quality grading, damage evolution research and engineering stability evaluation. The conventional rock acoustic wave test mainly relies on manual operation, for example, a probe fixture for rock ultrasonic test with publication number of CN214174239U, transmitting and receiving transducers (probes) are placed on two sides of a test piece, a coupling agent (such as grease, glycerin, etc.) is coated on the contact surface of the probe and the test piece, and then an operator is relied on to manually press the probe to ensure the coupling effect. This mode of operation suffers from the significant disadvantage that, first, the application of the couplant and the pressing of the probe rely entirely on manual operation, in which the operator must manually press the probe after applying the couplant to the test piece or probe to ensure adequate contact. For materials with rough surfaces such as sandstone, concrete and the like, larger pressure is required, but the manual effort is difficult to quantify, and two problems are easily caused, namely insufficient coupling when the pressure is insufficient, distorted test data and possibility of crushing a low-strength test piece (such as coal rock) when the pressure is excessive. In addition, the fluctuation of pressing force of different operators or the same operator for multiple tests can introduce human errors, so that the data repeatability is poor, and the reliability of test conclusion is affected. Disclosure of Invention The invention aims to provide an acoustic wave detection device and a rock acoustic wave test board so as to solve the problems in the background technology. In order to achieve the above purpose, the present invention provides the following technical solutions: In one aspect, there is provided an acoustic wave detection apparatus comprising: The device comprises a base, wherein the base is provided with a bearing table, and the bearing table is provided with a plurality of detection stations; the mounting assembly is used for mounting the test piece on the bearing table; The detection assembly comprises a moving mechanism, a floating centering mechanism, a clamping fixing mechanism and a detection mechanism, wherein the moving mechanism is used for driving the detection mechanism to move, the floating centering mechanism is used for adjusting the position of the detection mechanism in a horizontal plane so as to adapt to the position error of a test piece, the clamping fixing mechanism is used for clamping the test piece when the detection mechanism is contacted with the test piece, and the detection mechanism is used for detecting the internal damage condition of the test piece; The cleaning assembly comprises an installation boss, a pressing trigger mechanism and a wiping mechanism, wherein the installation boss is arranged on the bearing table, the pressing trigger mechanism is pressed when the clamping and fixing mechanism clamps on the installation boss, the wiping mechanism is opened when the triggering opening mechanism is pressed, the wiping mechanism is arranged on the installation boss, and the wiping mechanism is used for wiping the detection mechanism. Preferably, the mounting assembly comprises fixing seats, the fixing seats are respectively arranged on two sides of the detection station, the fixing seats are connected to the bearing table through bolts, and the fixing seats are used for fixing two sides of the test piece. Preferably, the base both sides all are provided with the base plate, the base plate is equipped with circular guide rail, moving mechanism includes movable block and removal cylinder, movable block sliding connection in circular guide rail, the movable block is provided with the removal cylinder, detection mechanism set up in the removal cylinder. Preferably, the detection mechanism comprises a mounting table, a movable rod, a transducer and a pressure sensor, wherein the mounting table is connected with the movable cylinder, the movable cylinder is used for driving the movable rod to move, the movable rod is movably connected with the mounting table, and the transducer and the pressure sensor are arranged on the movable rod. Preferably, the mounting table is provided with a limit groove, the floating centering m