Diesel engine spindle hole inspection tool

Abstract

The invention discloses a diesel engine spindle hole detection tool. The diesel engine spindle hole detection tool comprises a support and a micrometer gauge arranged on the support. The support comprises a support block, and the left and the right ends of the support block have concentric circular arc end faces fitting with the hole wall arc of a standard diesel engine spindle hole. The micrometer gauge comprises a dial plate, a detection rod and a detection head, and perpendicularly passes through the support block along the left-right symmetry axis of the support block via the detection rod. The diesel engine spindle hole detection tool has a simple and reasonable structure, can simply and visually detect the displacement of a spindle hole bonding plane, is easy to operate and improves the detection quality.

Description

technical field [0001] The invention relates to the field of diesel engines, in particular to a tool for checking a main shaft hole of a diesel engine. Background technique [0002] The lower part of the diesel engine cylinder block is used to install the crankshaft, which is called the crankcase, and the crankcase is divided into an upper crankcase and a lower crankcase. The upper crankcase is usually cast into one body with the cylinder block. The lower crankcase is used to store lubricating oil and close the upper crankcase. The upper and lower semicircular walls of the main shaft hole are respectively set on the upper crankcase and the lower crankcase. It is formed by closing the upper and lower semicircular walls on the lower crankcase. [0003] As an important matching part of the crankshaft of a diesel engine, the main shaft hole is required to have high roundness and coaxiality, and when the upper and lower semi-circular walls are closed to form the entire main shaf...

AI Technical Summary

Problems solved by technology

[0003] As an important matching part of the crankshaft of a diesel engine, the main shaft hole is required to have high roundness and coaxiality, and when the upper and lower semi-circular walls are closed to form the entire main shaft hole, it is easy to produce left-right misalignment on the joint surface (the upper and lower semi-circular walls are not aligned left and right ) affects the roundness and coaxiality of the spindle hole, and a large amount of misalignment will affect the assembly and running performance of the diesel engine

[0004] The existing detection of the main shaft hole of the diesel engine is only to use the long rod inner diameter dial indicator and the smooth calibration ring gauge to measure the diameter of the main shaft hole (limited to measuring the diameter of the 45° angle direction), but in the analysis of the main shaft hole of the diesel engine, use The traditional long-rod inner diameter dial gauge inspection cannot intuitively detect the misalignment of the spindle hole joint surface, and the detection quality is not high, which affects the assembly quality of the diesel engine spindle hole

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