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Hydraulic assistance device for unhooking

A technology of hydraulic power assist and power support frame, which is applied in drilling equipment, earthwork drilling, drill pipe, etc., can solve the problems of deep hole drilling, such as the difficulty of unloading the shackle of the drill pipe, save construction auxiliary time, improve the utilization rate, The effect of reducing construction time

Inactive Publication Date: 2014-04-09
CHINA UNIV OF GEOSCIENCES (WUHAN)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the above-mentioned problem that the drill pipe shackle is not easy to be disassembled in deep hole drilling, and to provide a hydraulic booster device that can perform drill pipe shackle conveniently and accurately, so as to reduce the labor intensity of workers and reduce the auxiliary operation time , to protect the shape of the drill pipe structure

Method used

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  • Hydraulic assistance device for unhooking
  • Hydraulic assistance device for unhooking
  • Hydraulic assistance device for unhooking

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Experimental program
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Effect test

Embodiment 1

[0017] Embodiment 1: A kind of shackle hydraulic booster device of the present invention, its structure is as follows figure 1 , 2 As shown, it includes booster frame 5, suspension ring 14, guide sleeve 3, push arm 2, connecting rod, stop pin 1, auxiliary guide pin 8 and oil cylinder 7, and the housing of the booster frame is an irregular integral support structure , the top is provided with a suspension ring 14 for threading the wire rope, and the device can be suspended on the support of the drilling tower by the wire rope at ordinary times and fixed for subsequent use. The two sides of the body of the booster frame are of different lengths, and a guide sleeve 3 is fixed on the long and short sides of both sides of the booster frame, and push arms 2 are respectively installed in the guide sleeves, and the push arms can move in the guide sleeve 3; The long side is to fix the clamped end, and one end of the push arm of the clamped end is hinged with the connecting rod 4 of th...

Embodiment 2

[0020] Embodiment 2: The structure of the shackle hydraulic booster device of the present invention is basically the same as that of Embodiment 1, except that the oil cylinder 7 is hydraulically expanded and the spring is contracted. That is, the hydraulic cylinder is designed so that when the hydraulic oil is unloaded, under the action of the spring force, the push arm is pushed out. When the shackle hydraulic booster device of the present invention is used in conjunction with a vertical shaft drilling rig, it can use the hydraulic reserved port of the vertical shaft drilling rig to take power, and when matched with the vertical shaft drilling rig, it does not need to be equipped with a separate hydraulic pump station, which is particularly convenient to use.

Embodiment 3

[0021] Embodiment 3: The structure of the shackle hydraulic booster device of the present invention is basically the same as that of Embodiment 1, except that the oil cylinder 7 is hydraulically expanded and hydraulically contracted. There is no spring in the hydraulic cylinder, and the relative movement of the piston and the cylinder is realized by hydraulic oil.

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Abstract

The invention relates to a hydraulic assistance device for unhooking comprising an assistance rack, pushing arms and an oil cylinder, wherein the top of the assistance rack is provided with a hanging ring for hanging the device on a drilling tower; the lengths of the two sides of the assistance rack are different; a guiding sleeve is fixed on each of the long and short sides; the pushing arms are arranged in the guiding sleeves and hinged with a connection rod; a stopping pin is arranged on each pushing arm; a guiding slot is further arranged on a shell of the assistance rack; and the guiding slot and an assistant guiding pin guide the cylinder shaft. The cylinder provides power for the unhooking, when in use, the device is pushed to an opening, the stopping pin of the long side is fixed with a clamp and the stopping pin of the short side is fixed with an unlocking clamp; a spring is compressed when the oil of the cylinder is injected to a predetermined oil pressure, a piston drives a piston rod and a cylinder sleeve to shrink relatively, so as to drive the connection rod to push the unhooking clamp and the clamp pushing arm to protrude, to reversely push out the unhooking clamp and the clamp arranged on upper and lower drill stems, so as to unhook a first buckle; when the pressure of the cylinder is relieved, the spring force drives the piston and the cylinder sleeve to stretch relatively, so that the connection rod drives the pushing arms to shrink. The device has advantages of simple structure and high screwing force, and is capable of solving the problem that the stem drills are difficult to dismount.

Description

technical field [0001] The invention relates to a breakout hydraulic boosting device, which is a device for boosting the loosening of drill pipes in drilling construction, and belongs to the field of core drilling. Background technique [0002] As the depth of the core drilling hole continues to increase, the rotary force driven by the drill pipe is also increasing. Especially when the hole is stuck or blocked, the drill pipe will be further tightened during rotary drilling, which makes the lifting of the drill When unloading the drill pipe becomes laborious and time-consuming, sometimes in order to unload the drill pipe, the drill pipe has to be vibrated with a heavy hammer. Improper operation can also cause the drill pipe to be knocked and deformed, which reduces the connection strength and sealing effect, and affects the drill pipe again. use. Especially for wireline coring drill pipes, due to the thinner wall at the joint, this kind of situation is more prominent, which...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B19/16
Inventor 张晓西张惠胡郁乐刘狄磊杨国巍罗光强
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)