Concrete test block centering device and method

Abstract

The invention relates to a concrete test block centering device and method. The device comprises a trolley track, a track slide block, a track adjusting screw, a platform trolley and a first adjustable lead screw assembly, wherein the trolley track is mounted in the track slide block; the track adjusting screw used for positioning the leftward and rightward movement of the track slide block is arranged on the track slide block; the platform trolley is arranged on the trolley track and can move along the trolley track back and forth; the first adjustable lead screw assembly used for positioningthe forward and backward movement of the platform trolley is arranged in a forward and backward moving direction of the platform trolley; and the first adjustable lead screw assembly is aligned at the front end or rear end of the platform trolley. The forward and backward positions of the trolley on the trolley track can be adjusted by the first adjustable lead screw assembly, and forward and backward alignment of the concrete test block is realized; the position of the trolley track in the left and right directions can be adjusted by the track adjusting screw, left and right centering of theconcrete test block can be realized, and inconvenience caused by the adoption of an auxiliary centering line in the prior art can be avoided.

Description

technical field [0001] The invention relates to the field of compression tests of concrete test blocks, in particular to a centering device and method for concrete test blocks. Background technique [0002] pressure testing machine (such as figure 1 shown) is the equipment used to detect the strength and elastic modulus of the concrete test block. In the detection of the concrete test block, the concrete needs to be placed in the middle of the pressure testing machine, especially when the elastic modulus of the concrete test block is detected. Whether the concrete test block is placed in the middle of the pressure testing machine is critical to the success of the test. [0003] At present, the centering of the concrete test block is to place the test block according to the auxiliary center line drawn by the lower platen on the top of the jack (such as figure 2 shown) centered with the naked eye. [0004] Although there is an auxiliary center line, since the pressure plat...

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Problems solved by technology

[0004] Although there is an auxiliary center line, since the pressure plate is placed in the reaction frame of the pressure testing machine, the placement and alignment of the concrete test block is inconvenient, and the alignment is difficult. When the test block is found to be placed deviated, it is difficult to adjust quite troublesome

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