Track inspection instrument verification platform

Abstract

The invention provides a track inspection instrument verification platform. The track inspection instrument verification platform comprises an upper base, a lower base, supporting legs and a hoisting device, wherein a rotary shaft A and a rotary shaft B are mounted at two side edges of a front surface of the lower base; rotary shafts C are mounted at two side edges of a bottom surface of the lower base; the rotary shafts C are located in the middle of a connection line of the rotary shaft A and the rotary shaft B; the upper base is movably mounted on the lower base through the rotary shaft A; the hoisting device is movably mounted on the lower base through the rotary shaft B and the rotary shafts C and is in contact with the bottom surface of the upper base; and the supporting legs are uniformly mounted on the bottom surface of the lower base. The errors can be effectively reduced, the operation is convenient, industrial standard grade-I precision grades are reached and the requirements on verification of a zero-grade precision grade track inspection instrument are met.

Description

technical field [0001] The invention belongs to the field of railway measuring instruments, and in particular relates to a verification platform of a rail inspection instrument. Background technique [0002] Railway tracks need to be maintained and overhauled regularly, and track inspection instruments are usually used to detect data such as rail spacing and ultra-high values ​​of railway tracks. Before using the track inspection instrument to detect the geometric state of the line, it needs to be initialized and verified by the verification table. At present, the lifting device of the upper base of the existing track inspection instrument is a single screw with a single point of contact on the top, which may easily cause uneven heights at both ends of the movable long beam, which cannot reach the Class I precision specified in the industry standard. The indication value is read by the digital display scale, the operation method is complicated, there are large errors in the...

AI Technical Summary

Problems solved by technology

At present, the lifting device of the upper base of the existing track inspection instrument is a single screw with a single point of contact on the top, which may easily cause uneven heights at both ends of the movable long beam, which cannot reach the Class I precision specified in the industry standard. The indication value is read by the digital display scale, the operation method is complicated, there are large errors in the measured height, direction and superelevation data, and because the beam moves non-parallel, the detected gauge often has errors; The hand rest requires manpower to pull the handle on the screw, and it takes a long time to rise to the highest verification height; because there is no protection device, it is difficult to avoid safety hazards caused by the free fall of the ultra-high verification unit when the lifting mechanism is damaged

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