Gear quenching mechanism and gear quenching method

Abstract

The invention relates to a gear quenching mechanism. The gear quenching mechanism comprises a barrel body, a barrel cover and a central shaft driving structure for driving a central shaft to rotate. The bottom wall of the barrel body is provided with a plurality of vertically-arranged tubular-structure bearing fixing rods. The bearing fixing rods are provided support rings and liquid inlets. The central shaft rotationally connected to a liquid storage barrel penetrates through the bearing fixing rods. The central shaft is connected with fan blades for driving liquid in the barrel body to flowfrom one ends of the bearing fixing rods to the other ends of the bearing fixing rods when the central shaft rotates. The gear quenching mechanism has the advantages that the heating and cooling effects are good, and bearings do not need to be moved in the heating and cooling switching processes, and the problems of low heating speed, poor surface hardness of shaft holes and liable surface deterioration in an existing gear quenching process are solved.

Description

technical field [0001] The invention relates to the technical field of gear processing, in particular to a gear quenching method of a gear quenching mechanism. Background technique [0002] Gear is a commonly used transmission part in machinery. In order to improve the hardness of the gear, the gear needs to be quenched during the gear machining process. The existing gear quenching process is to first set a plurality of gears to be quenched on a solid bearing fixing rod to form a gear string, then put the gear string in a heating furnace to heat to a set temperature, and then put the gear string to be quenched Transfer from the heating furnace to the cooling furnace for cooling to complete the quenching operation. [0003] The existing gear quenching process has the following disadvantages: since the bearing fixing rod is a solid structure, the heating speed is slow, and the cooling speed of the inner surface of the gear to be quenched (that is, the shaft hole surface and ...

AI Technical Summary

Problems solved by technology

[0004] The invention provides a gear quenching mechanism with good heating and cooling effects and no need for moving bearings during the heating and cooling conversion process, which solves the problems of slow heating speed, poor shaft hole surface hardness and easy surface deterioration in the existing gear quenching process

Heating and cooling only need to replace the storage tank with cooling fluid or heating fluid, and there is no need to transfer the gear string to be quenched, so it is convenient; if it is not transferred, the gear string to be quenched will not be in contact with room temperature air for a long time, so there will be no surface oxidation The problem of deterioration and poor quenching effect

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