Concrete piston, method applied to concrete piston, and concrete conveying device

Abstract

The disclosure relates to a concrete piston, a method applied to the concrete piston, and a concrete conveying device. The concrete piston includes a piston body, a sealing body, an elastic support ring, and a resistance element. The sealing body and the elastic support ring are sequentially sleeved on the piston body in the axial direction, and the resistance element is preset on the Inside the sealing body, so that the sealing body is worn during the wearing process of the sealing body, the resistance element has a first end and a second end for connecting with an electrical signal detector. Since the resistance element is preset in the sealing body, after the sealing body wears a predetermined amount, the resistance element will be exposed and continue to be worn, so that the volume of the resistance element changes, resulting in a corresponding change in its resistance. In this way, by judging the wear of the resistance element, the wear of the sealing body can be judged.

Description

technical field [0001] The present disclosure relates to the field of construction machinery, in particular, to a concrete piston, a method applied to the concrete piston, and a concrete conveying device. Background technique [0002] In the concrete pump, the concrete piston moves back and forth in the conveying cylinder to push the concrete to the construction site. The front end of the concrete piston faces the concrete, and the rear end faces the water, which has high requirements on the sealing performance of the concrete piston. Due to the complex and harsh working conditions of the concrete piston, the concrete piston (mainly the sealing body of the concrete piston) is seriously worn. However, so far, the industry has no means of monitoring the usage and service life of concrete pistons. For each inspection, only the concrete piston can be put back into the water tank, and the wear of the concrete piston can be detected by visual inspection and hand feeling. Because ...

AI Technical Summary

Problems solved by technology

However, so far, there is no means of monitoring the use and service life of concrete pistons in the industry

For each test, the concrete piston can only be put back into the water tank, and the wear of the concrete piston can be detected by visual inspection and hand feeling. Because this method is simple and rough, the wear of the concrete piston (seal body) cannot be quantified, and there is no standard. Before the concrete piston reaches the maximum amount of wear, the concrete piston is replaced in advance, resulting in a waste of resources for the use of the concrete piston and increasing the cost of use

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