Distance and angle synchronously-adjustable linkage device, receiving and transmitting module and plane stress field detection device and method

A stress field and angle adjustment technology, which is applied in the direction of measuring devices, measuring force, photovoltaic power generation, etc., can solve the problem that the deflection angle of the transmitting and receiving transducers cannot be consistent.

Active Publication Date: 2022-02-11
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing technical means for measuring plane stress in the field of ultrasonic testing has the defect that the same test is only applicable to a single material, and the deflection angle of the transmitting and receiving transducers cannot be consistent

Method used

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  • Distance and angle synchronously-adjustable linkage device, receiving and transmitting module and plane stress field detection device and method
  • Distance and angle synchronously-adjustable linkage device, receiving and transmitting module and plane stress field detection device and method
  • Distance and angle synchronously-adjustable linkage device, receiving and transmitting module and plane stress field detection device and method

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Experimental program
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Embodiment approach 1

[0045] Implementation Mode 1, see figure 1 Describe this embodiment. This embodiment provides a linkage device with synchronously adjustable distance and angle. The device includes: a base, a distance adjusting screw 1, an angle adjusting screw 9, a left connecting rod 2, and a right connecting rod 5. Axle column 4 and column lock 3; the screw rod of the distance adjustment screw 1 is fixedly connected with the base, the shaft column 4 is a cuboid, the upper half has a long strip-shaped through hole, and the lower half has a circular through hole. hole, and the opening directions of the elongated 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 in the middle of the screw rod of the distance adjusting screw 1 position, the threads of the threaded areas of the screw located on both sides of the shaft column 4 are opposite, and the threaded areas on both sides of the screw ar...

Embodiment approach 2

[0046] Implementation mode two, see figure 1 Describe this embodiment. This embodiment is a further limitation of a synchronously adjustable distance and angle linkage device provided in Embodiment 1. The device also includes: a distance adjustment handwheel and an angle adjustment handwheel 8; The distance adjusting handwheel is used to drive the distance adjusting screw 1 to rotate; the angle adjusting handwheel 8 is used to drive the angle adjusting screw 9 to rotate.

Embodiment approach 3

[0047] Implementation mode three, see figure 1 This embodiment is described. This embodiment provides a transceiver module of a plane stress field detection device whose distance and angle can be adjusted synchronously. The module includes: a linkage structure, a receiving end wedge 6, a receiving probe 7, and a transmitting end wedge Block 11 and transmitting probe 10; described linkage structure is a kind of distance and angle synchronously adjustable linkage device described in claim 1 or 2; described receiving end wedge 6 and transmitting end wedge 11 are mirror-symmetrically arranged on on the base, and are respectively fixedly connected with the two nuts of the distance adjusting lead screw 1, the receiving probe 7 and the transmitting probe 10 are mirror-symmetrically arranged, and are respectively located on the receiving end wedge 6 and the transmitting end wedge 11, and the receiving probe The middle part of 7 is connected with the receiving end wedge 6 through a rot...

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Abstract

The invention discloses a distance and angle synchronously-adjustable linkage device, a receiving and transmitting module and a plane stress field detection device and method, and relates to the field of ultrasonic non-destructive testing. In the existing technical means for measuring plane stress in the field of ultrasonic detection, the same detection is only suitable for a single material, and the consistency of deflection angles of transmitting and receiving transducers cannot be realized. The linkage device comprises a distance adjusting lead screw, an angle adjusting lead screw, a left connecting rod, a right connecting rod, a shaft column and a column lock. Based on the linkage device, a receiving end wedge block, a receiving probe, a transmitting end wedge block and a transmitting probe are added to form a receiving and transmitting module, a pulse transmitting device, an amplifying device and a data acquisition device are added to form a stress detection device based on the receiving and transmitting module, a stress detection method suitable for the stress detection device is provided, and the distance and the deflection angle of the transmitting-receiving probe of the detection device are adjusted according to a detected part. The invention is suitable for stress measurement application in the machining and manufacturing process of mechanical parts.

Description

technical field [0001] The invention relates to the field of ultrasonic non-destructive testing, in particular to a linkage device with synchronously adjustable distance and angle, a transceiver module, and a plane stress field detection device and method. Background technique [0002] In the process of manufacturing and using mechanical parts, the generation of stress is extremely common. The stress is mainly manifested as residual stress and structural bearing. The existence of these stresses will not only reduce the fatigue strength of the workpiece, but also cause the structure Under the action of load, process defects such as deformation and cracking will aggravate these damages during use, resulting in a significant decline in structural strength and stability. Therefore, in order to ensure the safety of the structure during service, the key structure It is important to carry out stress testing on a regular basis. Based on the acoustoelastic effect of ultrasonic waves...

Claims

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Application Information

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IPC IPC(8): G01L1/25F16M11/04F16M11/18
CPCG01L1/255F16M11/18F16M11/043Y02E10/50G01N29/043G01N29/265G01N2291/02827G01N2291/056G01N2291/102G01N29/28G01N2291/011G01N29/07G01N29/221G01N29/225G01B17/04G01B21/047G01B17/00G01N29/26G01N2291/023G01N2291/101
Inventor 赵勃史维佳李佳鑫谭久彬
Owner HARBIN INST OF TECH
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