Annular furnace for processing oil well pipe blank

Abstract

The invention discloses an annular furnace for oil well pipe blank machining, and relates to the technical field of oil pipe blank machining device.The annular furnace comprises a heating assembly for heating a plurality of pipe blanks at the same time, a plurality of clamping discs capable of clamping the pipe blanks are arranged in the heating assembly, a rotating fire spraying pipe is arranged in the heating assembly, and the fire spraying pipe heats the pipe blanks; and the lower end of the heating assembly is provided with a replacing assembly for automatically replacing the pipe blank, the replacing assembly drives a clamping ring to clamp the pipe blank through an arranged convex face disc, and the pipe blank is taken out of the heating assembly or placed into the heating assembly under the driving of a replacing motor. And the function of automatically replacing the pipe blank is achieved.

Description

technical field [0001] The invention relates to the technical field of oil pipe blank processing devices, in particular to an annular furnace for processing oil well pipe blanks. Background technique [0002] The blank used to produce the steel pipe is called the blank to be processed. Usually, high-quality (or alloy) solid round steel is used as the tube blank to be processed. Some pipe production methods also use steel ingots, continuous casting billets, forging billets, rolled billets and centrifugally cast hollow billets as billets for making pipes. The size of the tube blank to be processed is represented by the diameter of the solid round steel. Therefore, the heating furnace used for processing the tube blank to be processed is an annular heating furnace. The existing annular heating furnace directly puts the tube blank to be processed into the furnace. Among them, and then heating, there is no good fixing device, so that when the size of the tube blank to be proces...

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Problems solved by technology

Some pipe production methods also use steel ingots, continuous casting billets, forging billets, rolled billets, and centrifugally cast hollow billets as billets for pipe making. Generally, the billet to be processed refers to the round billet to be processed, and the round billet The size of the billet to be processed is represented by the diameter of the solid round steel. Therefore, the heating furnace for the billet to be processed is an annular heating furnace. The existing annular heating furnace directly puts the billet to be processed into Among them, after heating, there is no good fixing device, so that when the size of the tube blank to be processed is too large, it will shake, thus hitting the structure, causing the structure to be damaged, and the safety is low. At the same time, there is no rotating function, so that the heating will not Uniform, and can not well maintain the shape of the tube blank to be processed, so a ring heating furnace for processing tube blanks is proposed

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