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Drill pipe vibration damping device for exploration

A technology of vibration damping device and drill pipe, which is applied to drill pipe, drill pipe, earthwork drilling, etc., can solve the problem of poor damping effect of drill pipe, and achieve good damping effect, less wear parts and good resistance. hysteresis effect

Active Publication Date: 2021-12-14
云南铜业矿产资源勘查开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the deficiencies in the prior art, the present invention provides a drill pipe damping device for exploration that relies on the flow resistance of hydraulic oil to damp the drill pipe vibration, which solves the vibration damping effect of the drill pipe in the prior art. bad question

Method used

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  • Drill pipe vibration damping device for exploration
  • Drill pipe vibration damping device for exploration
  • Drill pipe vibration damping device for exploration

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Embodiment Construction

[0028] The technical solutions in the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0029] Such as figure 1 , the embodiment of the present invention proposes a drill pipe vibration damping device for exploration. The vibration damping device includes a sleeve rod 1 and a sleeve 2. The lower end of the sleeve 2 and the drill pipe 9 are connected together through a connecting male thread. The upper end of the sleeve rod 1 Connect with the drill body. The conveying pipe 19 is arranged inside the sleeve rod 1 and the sleeve 2, and the conveying pipe 19 is used to transport the drilling material in the drill pipe 9 to the upper end of the sleeve rod 1, and a flower for transmitting torque is also arranged between the sleeve rod 1 and the sleeve 2. The key sleeve 18, the upper end of the spline sleeve 18 is fixed on the sleeve rod 1, the lower end of the spline sleeve 18 is provided with a slot, the outer surface...

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Abstract

The invention provides a drilling rod vibration damping device for exploration. The vibration damping device includes a sleeve rod and a sleeve; a first cavity and a second cavity are arranged inside the sleeve, and a gap between the first cavity and the second cavity is provided. Through the first oil hole, the first cavity and the second cavity are also connected through the second oil hole. The lower end of the sleeve is connected with the drill pipe; The lower end of the rod is inserted into the first cavity of the sleeve to form a plunger structure. The sleeve rod is also connected with the sleeve through a screw rod. The sleeve rod can move up and down in the sleeve. There is an oil chamber inside the sleeve rod, and the outer wall of the sleeve rod is also An oil groove is provided, and the oil chamber communicates with the oil groove. When the lower end of the sleeve rod is inserted into the first cavity of the sleeve, the oil groove communicates with the second oil hole. The invention uses the resistance generated by the flow of oil in the channel to reduce vibration, the vibration reduction structure is durable, and the vibration reduction effect is good.

Description

technical field [0001] The invention relates to the technical field of drilling equipment, in particular to a drilling rod vibration damping device for exploration. Background technique [0002] There is an engine on the drilling rig, and the engine provides power for the drill pipe. When working, the vibration of the engine will be transmitted to the drill pipe, causing the vibration of the drill pipe, thereby affecting the life of the drill pipe and drill bit and the stability of work. Some drilling pipe vibration damping devices for exploration now reduce vibration by setting rubber damping pads between the drill pipe and the rig body, but the vibration damping effects are not ideal, and because the rubber vibration damping pads are easy to age and damage during use, further The vibration damping effect has been reduced. Contents of the invention [0003] Aiming at the deficiencies in the prior art, the present invention provides a drill pipe damping device for explora...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B17/07
CPCE21B17/07
Inventor 陶勇
Owner 云南铜业矿产资源勘查开发有限公司
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