Adjustable support for crankshaft detection

Abstract

The invention discloses an adjustable support for crankshaft detection. A projection arranged in the upper inclined surface of a pedestal cooperate with grooves in the lower inclined surfaces of left and right slide blocks to ensure that the left and right slide blocks slide along the upper inclined surface of the pedestal to and fro; the left end of a transmission shaft is provided with leftward threads whose pitch is the same with that of the left slide block, and the right end of the transmission shaft is provided with rightward threads whose pitch is the same with that of the right slide block; the transmission shaft is connected with the left and right slide blocks via the leftward and rightward threads respectively; the middle upper portion of the pedestal is provided with a baffle block to ensure that when the transmission shaft rotates leftwards / rightwards, the left and right slide blocks move towards the middle or two sides simultaneously but the transmission shaft itself does not move; and one end of the transmission shaft is provided with a handle, the middle of the handle is provided with a light hole, the handle cooperates with the end portion of the transmission shaft via the light hole, the outer circumference of the handle is provided with a threaded hole, and the handle is fixed to the transmission shaft via a fastening screw. The adjustable support has the advantages that the structure is simple, manufacture is simple, use is convenient, and the height of V-shaped iron can be adjusted at any time via the transmission shaft, so that the center lines of two support journals of a crankshaft are at the same height.

Description

technical field [0001] The invention relates to the field of machinery, in particular to an adjustable crankshaft bracket used when detecting crankshaft crank radius, runout, parallelism and other indicators on a flat plate. Background technique [0002] The existing crankshaft detection bracket is just a V-shaped iron bracket. When in use, it is placed on the detection platform and supported by two pairs of journals at both ends of the crankshaft, and then detects whether the centerlines of the two supporting journals are equal. Lift the crankshaft on the lower side of the center line, manually lift the V-shaped iron bracket, insert a feeler gauge between the bottom surface of the V-shaped iron bracket and the detection platform, then put down the crankshaft, and check whether the center lines of the two supporting journals are equal , if the height is not equal, adjust repeatedly until the height is equal. [0003] Large crankshafts, especially pier-forged crankshafts, ar...

AI Technical Summary

Problems solved by technology

[0003] Large crankshafts, especially pier forged crankshafts, are bulky and heavy, and it is difficult to move and lift them manually during the inspection process. They are often lifted by cranes, which is cumbersome, time-consuming, and inconvenient to operate.

This method of inserting a feeler gauge between the bottom surface of the V-shaped iron support and the detection platform to adjust the centerline contour of the two support journals has a large error due to human factors, high labor intensity, and long adjustment time.

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