The crankshaft is the most important component of the engine. It needs to withstand bending and torsional loads, so the crankshaft is required to have sufficient strength and stiffness, and the journal surface needs to be wear-resistant, work evenly, and have good balance. In order to meet the above requirements, it is very necessary to perform quenching heat treatment on the crankshaft. Now, with the development of technology, people no longer rely on a certain piece of equipment for quenching heat treatment. Most of them use crankshaft induction quenching automatic production lines composed of IGBT medium frequency heating power supplies.
The crankshaft induction quenching automatic production line consists of two IGBT medium frequency heating power supplies (160kw/10kHz), 11 sets of heating loads, two sets of automatic switchers, machine tool host, cleaning fluid circulation system, quenching cooling medium circulation cooling system (with magnetic filter device and It is composed of multi-channel flow digital display), coolant circulation cooling system (with pressure protection device), refrigerator, etc.
The quenching automatic production line adopts the forward-back-out form, which can be automatically connected with the tempering furnace; the automatic production line is equipped with a total of 10 stations according to the process action sequence, which are: loading, cleaning, transmission transition, connecting rod neck and small end oil seal quenching, There are 3 transmission transitions, main journal and big-end oil seal quenching, transmission transition, and blanking; the corresponding loads fixed by each power supply are automatically switched and alternately worked by the switch. The quenching transformers all adopt high-efficiency and thin structures; they can be adapted to many varieties. The crankshaft is easy to adjust, and the production cycle of the four-cylinder crankshaft can reach 1 piece/min.
The entire equipment control main system has complete quenching quality control functions, including storage of a large amount of processing data, power supply energy monitoring and protection, quenching cooling medium flow monitoring and protection, quenching cooling medium temperature monitoring and protection, cooling water pressure monitoring and protection, cooling water temperature monitoring and protection Monitoring and protection, monitoring and protection of the movement of each node, monitoring and protection of workpiece shortage at each node, monitoring and protection of workpiece rotation speed, etc.
At present, the production technology of this production line is quite mature. Many heat treatment manufacturers use this production line for quenching heat treatment, and the service life of the produced crankshafts is greatly improved, meeting the needs of the work. What's even better is that this production line enables workers to achieve mechanized and intelligent production, greatly improving production efficiency.
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GS-ZP-1200
