Linkage device, transceiver module and plane stress field measuring device and method capable of achieving synchronous adjustment of distance and angle

Patent metadata

Field	Value
Publication number	US-11709152-B2
Application number	US-202117552467-A
Country	US
Kind code	B2
Filing date	Dec 16, 2021
Priority date	Oct 20, 2021
Publication date	Jul 25, 2023
Grant date	Jul 25, 2023

Abstract

Disclosed are a linkage device, a transceiver module and a plane stress field measuring device and method capable of achieving synchronous adjustment of distance and angle, and relates to the field of ultrasonic non-destructive testing. The existing technical means for measuring plane stress in the field of ultrasonic testing has the shortcomings that the same testing is only applicable for single materials and the deflection angles of transmitting and receiving transducers are inconsistent. In the application, the linkage device designed by comprising a distance adjusting screw, an angle adjusting screw, a left connecting rod, a right connecting rod, a shaft column and a column lock is adopted, and based on the linkage device, the transceiver module designed by comprising a receiving end wedge, a receiving probe, a transmitting end wedge and a transmitting probe is additionally arranged; based on the transceiver module, the measuring device designed by comprising a pulse transmitting device, an amplifying device and a data acquisition device is additionally arranged, and the stress measuring method applicable for the stress measuring device is provided; and the distance and deflection angle between the receiving probe and the transmitting probe of the detection are adjusted according to a tested part. The application applies to stress measurement in the manufacturing process of mechanical components.

First claim

What is claimed is:

1. A linkage device capable of achieving synchronous adjustment of distance and angle, wherein the device comprises a base, a distance adjusting screw ( 1 ), an angle adjusting screw ( 9 ), a left connecting rod ( 2 ), a right connecting rod ( 5 ), a shaft column ( 4 ) and a column lock ( 3 ); a screw rod of the distance adjusting screw ( 1 ) is fixedly connected with the base, and the shaft column ( 4 ) is cuboid; a long through hole is formed in the upper part of the shaft column, and a circular through hole is formed in the lower part of the shaft column; the opening directions of the long through hole and the circular through hole are perpendicular to each other, and the circular through hole in the lower part of the shaft column ( 4 ) is fixed to the middle position of the screw rod of the distance adjusting screw ( 1 ) in a sleeving mode; threads of threaded area, located on both sides of the shaft column ( 4 ), of the screw rod are opposite, and the threaded areas of both sides of the screw rod are each provided with a nut; the left connecting rod ( 2 ) and the right connecting rod ( 5 ) are of the same structure, and both are L-shaped plates, wherein one end is provided with long through hole; the left connecting rod ( 2 ) and the right connecting rod ( 5 ) are arranged symmetrically by taking the shaft column ( 4 ) as a central mirror, wherein the column lock ( 3 ) penetrates through the long through holes in the right connecting rod ( 5 ), the shaft column ( 4 ) and the left connecting rod ( 2 ) in sequence, so that the right connecting rod, the shaft column and the left connecting rod are fixed; the bending positions of the left connecting rod ( 2 ) and the right connecting rod ( 5 ) are hinged to the base; the screw rod of the angle adjusting screw ( 9 ) is divided into two parts in the middle, and the threads of the two parts are opposite; and the two parts are each provided with a nut, and the two nuts are hinged to the tail ends of the other ends of the left connecting rod ( 2 ) and the right connecting rod ( 5 ) separately.

2. The linkage device capable of achieving synchronous adjustment of distance and angle according to claim 1 , wherein the device further comprises a distance adjusting handwheel and an angle adjusting handwheel ( 8 ); the distance adjusting handwheel is used for driving the distance adjusting screw ( 1 ) to rotate; and the angle adjusting handwheel ( 8 ) is used for driving the angle adjusting screw ( 9 ) to rotate.

3. A transceiver module of a plane stress field measuring device capable of achieving synchronous adjustment of distance and angle, comprising the linage device of claim 1 , wherein the transceiver module further comprises a receiving end wedge ( 6 ), a receiving probe ( 7 ), a transmitting end wedge ( 11 ) and a transmitting probe ( 10 ); the linkage device is capable of achieving synchronous adjustment of distance and angle; the receiving end wedge ( 6 ) and the transmitting end wedge ( 11 ) are arranged on the base in a mirror symmetric mode, and fixedly connected with the two nuts of the distance adjusting screw ( 1 ) separately; the receiving probe ( 7 ) and the transmitting probe ( 10 ) are arranged in the mirror symmetric mode, and located on the receiving end wedge ( 6 ) and the transmitting end wedge ( 11 ) separately; the middle part of the receiving probe ( 7 ) is connected with the receiving end wedge ( 6 ) through a rotating shaft, and the middle part of the transmitting probe ( 10 ) is connected with the transmitting end wedge ( 11 ) through a rotating shaft; the tail ends of the receiving probe ( 7 ) and the transmitting probe ( 10 ) are connected with the two nuts on the angle adjusting screw ( 9 ) through rotating shafts separately; and the receiving probe ( 7 ) and the transmitting end of the transmitting probe ( 10 ) face the position below a bottom plate.

4. The transceiver module of the plane stress field measuring device capable of achieving synchronous adjustment of distance and angle according to claim 3 , wherein the probe parts of the transmitting probe ( 10 ) and the receiving probe ( 7 ) are concave.

5. A plane stress field measuring device capable of achieving synchronous adjustment of distance and angle, comprising the transceiver module of claim 3 , a pulse transmitting device ( 12 ), an amplifying device ( 13 ) and a data acquisition device ( 14 ); the pulse transmitting device ( 12 ) sends a pulse signal to the transmitting probe ( 10 ) in the transceiver module; the signal output from the receiving probe ( 7 ) in the transceiver module is sent to the data acquisition device ( 14 ) after being amplified through the amplifying device ( 13 ); and data interaction between the data acquisition device ( 14 ) and an external processing unit is achieved through a serial communication port.

Assignees

• Harbin Inst Technology

Inventors

• Shi Weijia
• Li Jiaxin
• Zhao Bo
• Tan Jiubin

Classifications

• G01N29/26 Primary

  Arrangements for orientation or scanning {by relative movement of the head and the sensor (mechanical steering of sound transducers or their beams G10K11/35)} · CPC title

• G01B17/00

  Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations · CPC title

• G01N29/07

  by measuring propagation velocity or propagation time of acoustic waves · CPC title

• G01N2291/011

  Velocity or travel time · CPC title

• G01N2291/023

  Solids · CPC title