Ratchet-type drilling tool connecting device
A connecting device and ratchet-type technology, applied in the direction of drill pipe, drill pipe, drilling equipment, etc., can solve problems such as drill pipe falling off and loss, affecting drilling efficiency, and drilling stuck.
Pending Publication Date: 2020-08-11
山东益矿钻采科技有限公司
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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
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[0019] With reference to the figures covered in the accompanying drawings and specific practical instructions are as follows:
[0020] As shown in the figure, it is a ratchet type drilling tool connection device. The female joint 2 is provided with an internal thread 203 and a nose end inner hole 202. The outer wall of the nose end of the female joint 2 is provided with a pin hole 201. The pin 301 has a long hole and uses the cylindrical pin 304 to slide back and forth. During the screwing process of the male joint 1 and the female joint 2, the male joint nose end ratchet 101 and the wedge mechanism 3 are used to prevent the reverse rotation of the male joint 1 and the female joint 2. Spin off to prevent the drill pipe from falling off. When the drilling rig disassembles the drill pipe, the gripper works, clamping the sliding pin 301 in the wedge mechanism 3, the sliding pin 301 pushes the slider 302, and the slider 302 rises to prevent the reverse rotation of the male and fem...
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The invention mainly provides a ratchet-type drilling tool connecting device. Against the defects of threaded connection in the prior art, a ratchet structure arranged at a nose end of a male joint cooperates with a wedge block mechanism arranged on a female joint to prevent disengagement and loss of a drill pipe caused by reverse rotation, and only after a clamping device clamps a sliding pin onthe female joint when the drill pipe is dismantled from a drilling machine and the sliding pin pushes a sliding block, the device can rotate reversely to a position to make the male joint and the female joint be unscrewed and the drill pipe be disengaged. The device ensures that the drill pipe is disengaged and lost during reverse rotation, so that economic loss is avoided, and drilling efficiencyis improved.
Description
technical field [0001] The invention mainly relates to a ratchet type drilling tool connection device, which is mainly used in the drill pipe joint structure of geological exploration, and is widely used in various drill pipes. 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 ratchet type drilling tool connection device, aiming...
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IPC IPC(8): E21B17/043
CPCE21B17/043
Inventor 王海峰邱立新王海瑞
Owner 山东益矿钻采科技有限公司