Crankshaft detection base

Abstract

The invention discloses a crankshaft detection base. The crankshaft detection base comprises a base plate, a pair of guide rail blocks, a pair of V-shaped blocks and a sliding plate assembly; the guide rail blocks which are inverted T-shaped blocks are fixedly installed at two ends at the top of the base plate; guide grooves which are perpendicular to the base plate are formed in opposite inner sides of the guide rail blocks; the pair of V-shaped blocks are fixedly installed at the tops of the guide rail blocks to form into V-shaped grooves for supporting crankshafts to be detected; the sliding plate assembly comprises a sliding plate, bushing rolling wheels and an adjusting bolt; guide rails which are matched with the guide grooves of the guide rail blocks are formed in bilateral sides of the sliding plate in an extending mode; the bushing rolling wheels are arranged on bilateral sides on the top surface of the sliding plate in a rotatable mode; the tops of the bushing rolling wheels extend out of the top of the sliding plate; the adjusting bolt is in threaded connection with the sliding plate from bottom to top in a rotatable lifting mode. The crankshaft detection base can guarantee an accurate measuring result and a high efficiency of a main journal bouncing item through a large-sized crankshaft platform.

Description

technical field [0001] The invention relates to the field of detection of geometric characteristic items of crankshaft products in mechanical manufacturing, in particular to a crankshaft detection support. Background technique [0002] The detection of the geometric characteristics of internal combustion engine crankshaft products, all detections involving runout geometric quantities, generally need to be equipped with center tops or V-shaped support components to implement. For crankshaft products with small size and light weight, ordinary double-top or double-V-shaped bearing components can be used to solve the problem, but for the detection of runout geometry of super-large and overweight internal combustion engine crankshafts, ordinary double-top or double-V-shaped bearings cannot be used Components to address support. The main reason is that the hardness of the crankshaft material cannot be further improved, and the weight of the whole crankshaft is too large, and the ...

AI Technical Summary

Problems solved by technology

For crankshaft products with small size and light weight, ordinary double-top or double-V-shaped bearing components can be used to solve the problem, but for the detection of runout geometry of super-large and overweight internal combustion engine crankshafts, ordinary double-top or double-V-shaped bearings cannot be used components to address support

The main reason is that the hardness of the crankshaft material cannot be further improved, and the weight of the whole crankshaft is too large, and the pressure applied to the contact part of the ordinary double V-shaped bearing assembly is too high, and because the surface of the main journal of the crankshaft and the surface of the V-shaped block are formed by sliding Pay, during the rotation of the crankshaft, the cemented carbide of the V-shaped bearing assembly will damage (strain) the surface of the main journal of the crankshaft, resulting in loss of cost

In fact, when the weight of the crankshaft exceeds 0.8 tons, an adult cannot turn the measured crankshaft by hand at all, and the runout geometry cannot be inspected

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