Rope medium-length hole drilling tool locking device

A locking device and deep hole drilling technology, applied in drill pipes, drill pipes, drilling equipment, etc., can solve problems such as low efficiency, high incidence of drilling tool accidents, excessive damage to elastic clips and related components, etc., to improve economic efficiency , the effect of prolonging the service life

Inactive Publication Date: 2015-04-29
郭靖
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the deep-hole drilling tools for domestic ropes are composed of internal spline drilling tools, external spline drilling tools and inner tube bearings. The ejection c

Method used

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  • Rope medium-length hole drilling tool locking device
  • Rope medium-length hole drilling tool locking device
  • Rope medium-length hole drilling tool locking device

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0019] From figure 1 As shown in the position view of the present invention, the T-shaped stopper 2, the locking device 3 and the external spline drill rod 4 are connected, and the reamer 1 is installed on the outside.

[0020] From figure 2 Shown is a semi-sectional view of the reamer 1 of the present invention. The reamer 1 is an internal spline drilling tool component, with external threads at the lower end, internal threads at the upper end, a reamer on the outside, and a concave ring on the inside.

[0021] From image 3 , Figure 4 Shown is a half-sectional view of the T-shaped stopper of the present invention, the T-shaped stopper 2 is an inner tube assembly part, the upper end is provided with a spring clip installation part, the lower end is provided with internal threads, and the T-shaped step is provided with an upper concave ring , with sinks evenly distributed on the outside.

[0022] From Figure 5 Shown is a half-sectional view of the external spline dr...

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PUM

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Abstract

A rope medium-length hole drilling tool locking device is characterized by being composed of an external spline drilling pipe, a locking unit, a position stopping device and a reamer. The taper extrusion expansion principle is adopted, when a drilling tool works, rising thrust producedby the external spline drilling pipe is converted into transverse tension through the locking device, a locking device spring piece enters a reamer groove, rising thrust produced by the external spline drilling pipe is effectively stopped, the purpose of locking is attained, and thus the drilling tool is protected from being damaged by the rising thrust produced by the external spline drilling pipe.

Description

technical field [0001] The invention relates to an engineering machine (drilling machine, drilling tool), in particular to a locking device for a deep hole drilling tool in a rope. Background technique [0002] At present, the deep-hole drilling tools for domestic ropes are composed of internal spline drilling tools, external spline drilling tools and inner tube bearings. The ejection card on the bearing is blocked, so the ejection card and related parts are damaged too quickly, and the drilling tool accidents are frequently occurred, and the efficiency is low. Contents of the invention [0003] The object of the present invention is to provide a locking device, which can effectively improve the service life of the drilling tool. [0004] The technical solution of the present invention is: it consists of a reamer, a T-shaped stopper, a locking device and an external spline drill rod, and the rising thrust generated by the external spline drill rod pushes the locking devic...

Claims

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Application Information

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IPC IPC(8): E21B17/00
CPCE21B17/046E21B17/043
Inventor 郭靖
Owner 郭靖
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