Double-cable winch device for ultrasonic hole and groove formation quality inspection

Abstract

The invention discloses a double-cable winch device for ultrasonic hole and groove formation quality inspection. The double-cable winch device comprises an ultrasonic sensor and a balance frame, and multiple pulleys are arranged along the balance frame; a mounting support is arranged in the middle position of the balance frame, and the mounting support is connected with the ultrasonic sensor; oneend of a positioning steel wire rope is connected with a bottom end connecting port of a left adapter, and the other end of the positioning steel wire rope is sequentially wound around each pulley onthe balance frame in an S shape and then is connected with a bottom end connecting port of a right adapter; and a top end connecting port of the left adapter is connected with the bottom end of a leftelectric cable, and a top end connecting port of the right adapter is connected with the bottom end of a right electric cable. The double-cable winch device has the advantages of being simple in structure, small in size, light in weight, high in portability, high in reliability and strong in controllability.

Description

technical field [0001] The invention relates to the technical field of geotechnical engineering detection, in particular to a double-cable winch device for ultrasonic hole-forming and groove-forming quality detection. Background technique [0002] In the prior art, there are two technical routes for the detection of hole formation and groove formation, one is based on the mechanical contact method, and the other is based on the ultrasonic method. [0003] The detection method usually adopted by the mechanical contact method hole-forming detector is: the computer controls the winch to retract and place the contact sensor placed in the hole-forming mud. The expansion angle of the mechanical arm is related to the output of a certain potentiometer. The computer reads the output value of the potentiometer to convert the angle at which the multiple mechanical arms of the contact sensor extend outward, and then converts the equivalent diameter of the hole. The traditional mechanic...

AI Technical Summary

Problems solved by technology

There are some problems with this method: First, the contact characteristics of each mechanical arm and the specific contact point of the hole wall are highly random, which is due to the discreteness of the rock and soil material. When the sensor is lifted, multiple robotic arms are in contact with the hole wall The friction process is very complicated, which makes it impossible to guarantee the detection accuracy of the inclination angle; secondly, the opening force of the mechanical arm is too small to affect the sensor to follow the inclination of the hole wall; Contact is greatly affected by the randomness of contact traits

The prerequisite for the three-dimensional attitude sensor to function is that the probe is in a horizontal and non-rotating state, but generally the probe is fished in the hole with a cable, and it is relatively easy to achieve horizontality, but it is difficult to ensure that it does not rotate

[0006] The detection principle of the ultrasonic hole forming detector is the reflected wave method. The calculation method in the specification is based on the premise of ensuring that the sensor is "always on a plumb line" and that the sensor is "not torsion" during the detection process. Therefore, In the prior art, the winch used to retract the ultrasonic sensor must have the function of blocking the twisting of the ultrasonic sensor

Images