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Track type soundproof device suitable for acoustic detection of impact-echo

A technology of shock echo and sound insulation device, which is used in measurement devices, analysis of solids using sonic/ultrasonic/infrasonic waves, and material analysis using sonic/ultrasonic/infrasonic waves, etc. It can improve the test accuracy and isolate the external vibration interference.

Active Publication Date: 2019-01-15
四川升拓检测技术股份有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method has a long history, it has the following disadvantages: it requires a large excitation energy and hammer body, it is difficult to quantify and has poor accuracy, and it is difficult to detect deep voids and defects

Method used

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  • Track type soundproof device suitable for acoustic detection of impact-echo
  • Track type soundproof device suitable for acoustic detection of impact-echo
  • Track type soundproof device suitable for acoustic detection of impact-echo

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Such as Figure 1 to Figure 7 As shown, a crawler-type sound insulation device suitable for shock-echo audio frequency detection includes a device body and a plurality of walking wheels 1 installed on the device body;

[0055] It also includes two rubber wheels 8 installed at the bottom of the device body, and two rubber rings 6 installed at the bottom of the device body;

[0056] When the device body walks on the surface to be tested through the walking wheel 1, the two rubber wheels 8 and the two rubber rings 6 are all used as a part of the gear train of the device body and roll with the movement of the device body;

[0057] The bottom surfaces of the two rubber wheels 8 and the bottom surfaces of the two rubber rings 6 form an annular area, and when the device body walks on the surface to be tested by the walking wheel 1, each point in the circumferential direction of the edge of the annular area is uniform. contact with the measured surface.

[0058] In this progr...

Embodiment 2

[0064] Such as Figure 1 to Figure 7 As shown, the present embodiment is further limited on the basis of Embodiment 1: as the specific installation form of the road wheel 1, the rubber ring 6, and the rubber pad: a plurality of road wheels 1 form multiple groups of wheels, and each wheel group includes a A wheel shaft 3 and two walking wheels 1, the wheel shaft 3 passes through the device body, and a walking wheel 1 is installed at each end of the wheel shaft 3;

[0065] Two rubber wheels 8 are installed on any two axles 3, each rubber wheel 8 is coaxial with the axle 3 where it is located, and each rubber wheel 8 rotates synchronously with the axle 3 where it is located;

[0066] The wheel shaft 3 used to install the rubber wheel 8 is respectively shaft A and shaft B, and two rubber rings 6 are arranged between shaft A and shaft B, and shaft A and shaft B are used as pulleys of rubber ring 6, between shaft A and shaft B During the rotation of the shaft B, the shafts A and B ...

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PUM

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Abstract

The invention discloses a track type soundproof device suitable for acoustic detection of impact-echo, comprising a device, multiple walking wheels disposed on the device, two rubber wheels disposed on the bottom of the device, and two rubber rings disposed on the bottom of the device. The two rubber wheels and the two rubber rings are both acting as a part of the device wheels system and rollingwith the movement of the device when the device moves on the tested surface with the walking wheels. The bottom surface of the two rubber wheels and the bottom surface of the two rubber rings encloseto form an annular region, and when the device moves on the tested surface with the walking wheels, each point in the circumferential direction of the edge of the annular region is in contact with thetested surface. The track type soundproof device suitable for acoustic detection of impact-echo can isolate the external vibration interference and can improve the test accuracy.

Description

technical field [0001] The invention relates to the technical field of quality and safety detection of civil engineering, construction, road and bridge, and water conservancy projects, in particular to a crawler-type sound insulation device suitable for shock echo audio frequency detection. Background technique [0002] Non-destructive testing techniques for concrete structures can be divided into the following two categories according to their test media: [0003] Detection methods based on shock elastic waves and ultrasonic waves [0004] Ultrasonic method and shock elastic wave are essentially the same (both belong to the category of elastic wave in a broad sense), and both propagate through the tiny motion of particles in the measured object, so they are related to the parameters such as the mechanical properties of the material. However, the two methods are quite different due to the difference in wavelength and test equipment. [0005] Detection method based on elect...

Claims

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Application Information

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IPC IPC(8): G01N29/04G01N29/22G01N27/72G01N22/00
CPCG01N22/00G01N27/72G01N29/04G01N29/045G01N29/22
Inventor 吴佳晔张亮许自明
Owner 四川升拓检测技术股份有限公司