Quenching mechanism of steel ball quenching machine

Abstract

The invention relates to a quenching machine of a steel ball, which pertains to the technical field of quenching facilities of metal materials. The invention comprises: a screw pole with the central part being provided with a screw plate used for separating the steel ball and driving the movement of the steel ball, and two ends being supported on brackets of bearing chocks through a first and a second bearing chocks; a medium groove which is used for accepting a quenching medium which is imported by a conveying mechanism of the quenching medium of the quenching machine of the steel ball and is fixed at a bracket of the medium groove and wholly corresponding to the lower part of the screw plate; a driving device of the screw pole which is used for driving the movement of the screw pole as well as is connected with the screw pole in a transmitted way. The invention has the advantages that: since the screw pole of the screw plate is adopted, the screw plate causes the steel ball to be moved under a separation state, thereby, no pad patch happens; meanwhile, every steel ball has the same quenching time, so the steel balls gain inside and outside quenching effect and the whole hardness (HRC) thereof can reach 60-70; the screw plate on the screw pole drives the steel balls, which can obtain more than 5 times quenching efficiency than the prior art.

Description

technical field [0001] The invention belongs to the technical field of quenching facilities for metal parts, and in particular relates to a quenching mechanism of a steel ball quenching machine, which is used to quickly cool the steel balls rolled and formed by a rolling mill in a quenching medium such as water or oil, so as to obtain ideal Strength, toughness and fatigue strength. Background technique [0002] Taking the building material production industry such as a cement plant as an example, in the process of cement production, the ore crushed by a crusher such as a single-rotor or double-rotor hammer crusher needs to be sent to a ball mill (referred to as grinding in the industry), and the ball mill needs Steel balls with ideal wear resistance and high hardness are used. To obtain ideal strength, hardness, wear resistance, and fatigue resistance of steel balls, the round steel used for rolling into balls must first be heated in a heating furnace. to critical temperatu...

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Problems solved by technology

The more important reasons for affecting the quenching effect are: First, the structure of the cylinder body 8 determines that the temperature of the quenching medium in the cylinder cavity cannot be controlled, and the temperature of the quenching medium introduced into the cylinder cavity from the pipeline 84 will soon rise , because the structure of the cylinder body 8 determines that the cylinder cavity is connected, which cannot meet the requirement of receiving quenching medium separately, so it is difficult to guarantee the quenching quality of the steel balls. During use, the steel balls are poor in wear resistance and easy to wear due to their low hardness. The deformation will bring frequent replacement of steel balls to the production industry, increase the cost of use, and affect the normal production due to the low efficiency of ball milling due to deformation; second, it cannot ensure that each steel ball can obtain the same quenching time. , the steel balls that enter the cylinder cavity later will inevitably exit the cylinder cavity first, so the hardness of the same batch of steel balls after quenching is not the same

In terms of quenching efficiency, if a large number of balls are continuously fed into the cylinder cavity of the cylinder body 8 through the feeding ball lane 83, the physical properties of the steel balls will be worse due to the serious pile-up. On the contrary, if the balls are fed one by one, then Not only will the medium used for quenching be wasted, but also it will cause inactive consumption of energy, because the cylinder 8 is passively in a state of being hungry and tending to run dry

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