Oil cooling system for double-chamber vacuum oil quenching furnace

Abstract

The invention discloses an oil cooling system for a double-chamber vacuum oil quenching furnace. The oil cooling system comprises a furnace body and an oil tank, wherein a quenching oil cooling device is arranged on the oil tank; the quenching oil cooling device comprises a stirring motor, an impeller and a heat exchanger, wherein the heat exchanger is arranged on the transmission shaft of the stirring motor; and the impeller is arranged at the tail end of the transmission shaft of the stirring motor. The oil cooling system is characterized in that the stirring motor is arranged above the oil tank in an inclined way; annular flow guide plates are arranged on both two sides of the impeller in the oil tank; the two side surfaces of each annular flow guide plate are respectively welded with the two side surfaces of the oil tank; a thermocouple oil temperature detection device is arranged on the heat exchanger; and the signal feedback end of the thermocouple oil temperature detection device is connected with a water supply system of the heat exchanger and automatically controls the water supply system of the heat exchanger. The stirring motor is arranged above the oil tank in an inclined way, so that the problem of inconvenience in maintenance after the oil tank leaks is solved; and the control over the oil temperature is realized by controlling the flow rate of water supply by sending the feedback information to an automatic control valve in the water supply system of the heat exchanger by the thermocouple oil temperature detection device.

Description

technical field [0001] The invention relates to an oil cooling system for a double-chamber vacuum oil quenching furnace, in particular to an oil cooling system for a double-chamber vacuum oil quenching furnace with adjustable oil cooling speed and convenient maintenance. Background technique [0002] The thermal stirring system of the current vacuum oil quenching furnace is often designed in the lower part of the oil tank, specifically: a horizontal shaft is set at the bottom of the oil tank, one end of the horizontal shaft is placed in the oil tank, an impeller is installed on the horizontal shaft in the oil tank, and the horizontal shaft The other end of the tank exceeds the side of the oil tank, and is sealed with the side of the oil tank through a seal, and a stirring motor that drives the horizontal axis to rotate is installed at its end. But there are following problems in this way: [0003] 1. It is impossible to adjust the cooling speed of the quenching oil, so that...

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Problems solved by technology

[0003] 1. The cooling speed of the quenching oil cannot be adjusted, so it cannot be adjusted in real time according to the cooling process of the workpiece;

[0004] 2. Since the stirring motor is set at the lower part of the fuel tank, and the rotating shaft of the stirring motor is set on the side of the fuel tank, once the seal ring is damaged and leaks, all the quenching oil in the fuel tank must be drained before maintenance, which is inconvenient for maintenance;

[0005] 3. The workpiece is placed in the oil tank, and the flow of quenching oil is not guided during the cooling process, resulting in uneven cooling of the workpiece

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