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Elastic pin limiting drill connecting device

A technology for connecting devices and drilling tools, applied in drill pipes, drill pipes, drilling equipment, etc., can solve the problems of loss of drill pipes, stuck drills, affecting drilling efficiency, etc., so as to increase drilling efficiency and avoid economic losses. Effect

Pending Publication Date: 2020-08-14
山东益矿钻采科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In geological exploration, drill pipes are connected by drilling rigs, and according to the drilling depth, they are connected in sections through various connection structures. There are many connection methods, such as screw connection type, square or hexagonal connection type, etc., this paper The invention mainly describes the threaded connection. When the drilling rig is drilling, sometimes the phenomenon of drill sticking will occur. At this time, the drilling rig needs to be rotated in the opposite direction at a low speed to loosen the drill pipe. Drilling efficiency

Method used

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Embodiment Construction

[0023] With reference to the figures covered in the accompanying drawings and specific practical instructions are as follows:

[0024] As shown in the figure, a spring pin limit drilling tool connection device, the female joint is provided with an internal thread 203 and a nose slider hole 202, and the outer wall of the female joint nose is provided with a pin hole 201, which is equipped with a sliding pin 401 to limit the position. Block 402, spring 403, cylindrical pin, sliding pin 401 utilizes cylindrical pin to slide back and forth, nut slider 3 is provided with internal thread 301 and outer wall groove 302, nut slider 3 is put into female connector nose end slider hole 202, at this time the spring 403 is the reset state, limit position, 402 is limited in the groove 302 of the outer wall of the nut slider, the male joint is provided with an external thread 102 and a nose thread 101, and during the screwing process of the male joint external thread 102 and the female joint i...

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Abstract

According to the main content of the invention, the invention provides an elastic pin limiting drill connecting device. Specific to the defects of threaded connection in the prior art, an elastic pinmechanism is used for controlling reverse rotation, a drill rod is disengaged and lost, only when the drilling rod of a drilling machine is demounted, a clamping device clamps a sliding pin on a female connector, and the sliding pin pushes a limiting block so that limiting block can rotate reversely to make the female connector and a male connector to be rotationally disengaged from the drill rodto be disengaged. Disengaging and losing of the drill rod during reverse rotation are ensured, economic losses are avoided, and the drilling efficiency is improved.

Description

technical field [0001] The present invention mainly relates to a spring pin limit drilling tool connection device, which is mainly used in the drill pipe joint structure of geological exploration, and is widely used in the interconnection of various drilling tools. Background technique [0002] In geological exploration, drill pipes are connected by drilling rigs, and according to the drilling depth, they are connected in sections through various connection structures. There are many connection methods, such as screw connection type, square or hexagonal connection type, etc., this paper The invention mainly describes the threaded connection. When the drilling rig is drilling, sometimes the phenomenon of drill sticking will occur. At this time, the drilling rig needs to be rotated in the opposite direction at a low speed to loosen the drill pipe. drilling efficiency. Contents of the invention [0003] The main content of the present invention is to provide a spring pin lim...

Claims

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Application Information

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IPC IPC(8): E21B17/043
CPCE21B17/043
Inventor 王海峰邱立新王刚
Owner 山东益矿钻采科技有限公司
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