A kind of engine crankshaft quenching treatment equipment and quenching treatment process

Abstract

The invention provides an engine crankshaft quenching treatment equipment and quenching treatment process, including a mounting base plate, a support frame, a cooling mechanism and a clamping and rotating mechanism. A cooling mechanism is installed, and a clamping and rotating mechanism is symmetrically installed on the cooling mechanism through rotational fit, and the clamping and rotating mechanism is located between the supporting frames. The relative position of the crankshaft during the cooling process is adjusted in real time by the shifting motor and the lifting motor, which reduces the work intensity of the workers. The clamping and rotating mechanism can provide stable clamping operations for the engine crankshaft with complex shapes, and through the cooling process Continuously rotating the crankshaft can make the complex surface of the crankshaft get stable and uniform rapid cooling, and improve the working efficiency of the cooling work.

Description

technical field [0001] The invention relates to the technical field of engine crankshaft quenching treatment, in particular to engine crankshaft quenching treatment equipment and a quenching treatment process. Background technique [0002] The engine crankshaft is generally made of special 42CrMoA steel. After being forged and formed and kept warm for a period of time, it needs to be taken out of the furnace and cooled by cooling liquid or sprayed with water, sprayed or blown for metal heat treatment. [0003] Due to the complex shape of the engine crankshaft and the large cross-sectional size of the sampling part, it is difficult to perform uniform cooling during the coolant cooling process, and the requirements for the comprehensive mechanical properties of the cooling device are relatively high. However, the engine crankshaft quenching treatment in the current market has the following problems during operation Problem: a. During the cooling process of the engine crankshaf...

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Problems solved by technology

[0003] Due to the complex shape of the engine crankshaft and the large cross-sectional size of the sampling part, it is difficult to perform uniform cooling during the coolant cooling process, and the requirements for the comprehensive mechanical properties of the cooling device are relatively high. However, the engine crankshaft quenching treatment currently on the market has the following problems during operation Problem: a. During the cooling process of the engine crankshaft, it is difficult to ensure that the surface of the engine crankshaft with complex shape is uniformly cooled in the coolant. The different cooling time of each part of the engine crankshaft may cause excessive cracking tendency of the crankshaft, resulting in a high scrap rate High, b. In the traditional engine crankshaft quenching process, due to the complex shape of the engine crankshaft, it is difficult to provide a stable clamping operation for it, and it is impossible to provide a certain degree of rotation for the engine crankshaft during the cooling process to stabilize the engine crankshaft The effect of rapid cooling;

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