Slip type chuck with housing

Abstract

The invention discloses a slip type chuck with a housing. The whole chuck is formed by combining a left semicircular chuck half piece and a right semicircular chuck half piece which are in central symmetry; the left chuck half piece and the right chuck half piece are connected and matched through a front hinge pin and a rear hinge pin which are vertically arranged to form a tubular chuck body, anda slip mounting hole is formed in the middle of the chuck body; four vertically-arranged slip bodies are arranged on the inner wall of the slip mounting hole; two housing connecting hole sets arranged front and back are formed in the chuck body; each housing connecting hole set comprises housing connecting holes arranged left and right; the top of the chuck body is covered with the housing; a conical guider with the caliber gradually increased from top to bottom is arranged at the bottom of the chuck body; a round guide body is arranged in the conical guider; a guide body round hole is formedin the middle of the guide body; guide body weight reducing grooves arranged at intervals are formed in the guide body; and reinforcing plates arranged at intervals are arranged on the periphery of the conical guider. According to the slip type chuck, through the design of an upper cover, dust is not likely to be accumulated in the slip bodies in the chuck, and safety accidents cannot happen accordingly.

Description

technical field [0001] The invention relates to a slip type chuck with a cover, which belongs to the technical field of petroleum drilling equipment. Background technique [0002] Slip chucks are equipment used in oil and natural gas casing operations. The existing casing operation usually uses casing elevators and casing slips to cooperate with each other, and some well crews use casing chucks to perform casing operation, which effectively reduces the labor intensity of workers. However, the structure of the traditional slip-type chuck is complex, and the top of the chuck is not provided with a cover. The slip body in the chuck will accumulate a lot of dust if it is exposed to the outside for a long time, which is prone to safety accidents. Contents of the invention [0003] The object of the present invention is to provide a slip type chuck with a simple structure and a cover. [0004] In order to achieve the above object, the present invention provides the following t...

AI Technical Summary

Problems solved by technology

However, the structure of the traditional slip chuck is complex, and the top of the chuck is not provided with a cover. The slip body in the chuck will accumulate a lot of dust if it is exposed to the outside for a long time, which is prone to safety accidents

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