Reinforced type drilling drill bit with gauge protection step

An enhanced and stepped technology, which is applied in the direction of drill bits, drilling equipment, earthwork drilling, etc., can solve problems such as broken teeth, lost teeth, and unsatisfactory slag discharge effect, so as to achieve solid tooth fixation, good slag discharge performance, and good drilling performance. fast effect

Inactive Publication Date: 2015-05-06
武穴市长江工具股份有限公司
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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 problem of broken teeth and missing teeth in the early use of the existing rock drilling bit, and the unsatisfactory slag discharge effect, etc., to provide an enhanced rock drilling bit with a diameter-gauge step

Method used

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  • Reinforced type drilling drill bit with gauge protection step
  • Reinforced type drilling drill bit with gauge protection step
  • Reinforced type drilling drill bit with gauge protection step

Examples

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Effect test

example 1

[0019] Example 1: see figure 1 -4, one of the structures of the present invention, it has trouser body 1, is provided with the blind hole 11 that opens downward in trouser body 1, and the lower section of blind hole 11 is threaded hole, and the front end of trouser body 1 is the taper that contracts forward The head is formed with three arc-shaped grooves 2 around the head, and three oblique holes 6 are opened on the conical surface of the head. Alloy teeth 8 are provided with two vertical holes 10 on the end surface of the head, and alloy teeth 9 are embedded in each vertical hole 10, especially: a water hole 12 is drilled on the end surface of the head to communicate with the pants body 1 The blind hole 11; the head and the trouser body 1 are transitionally connected by two sections of structure, the front section is a diameter-gauge step cylindrical section 4 and the head is connected, and the rear section is an inverted cone 3 and the trouser body 1 is connected.

[0020]...

example 2

[0021] Example 2: see Figure 5 —8, the second structure of the present invention, it has trouser body 1, is provided with the blind hole 11 that opens downward in trouser body 1, and the lower section of blind hole 11 is threaded hole, and the front end of trouser body 1 is the taper that contracts forward The head is formed with three arc-shaped grooves 2 around the head, and several oblique holes 6 are opened on the conical surface of the head. Alloy teeth 8, 9 have a number of vertical holes 10 on the end face of the head, each vertical hole 10 is embedded with alloy teeth 8, 9, especially: at least one water hole 12 is drilled on the end face of the head to communicate The blind hole 11 in the trousers body 1; the head and the trousers body 1 are transitionally connected by two sections of structure, the front section is a diameter-gauge step cylindrical section 4 connected to the head, and the rear section is an inverted cone 3 connected to the trousers body 1.

[0022]...

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Abstract

The invention relates to drilling tools, in particular to a reinforced type drilling drill bit with a gauge protection step. The reinforced type drilling drill bit is provided with a trouser body, a blind hole with a downward opening is formed in the trouser body, the lower section of the blind hole is a threaded hole, the front end of the trouser body is a conic head shrinking forwards, multiple arc-shaped grooves are formed in the periphery of the head, multiple inclined holes are formed in the conic face of the head, the inclined holes and the arc-shaped grooves are staggered and alternated, each alloy tooth is embedded in the corresponding inclined hole, multiple perpendicular holes are formed in the end face of the head, and each alloy tooth is embedded in the corresponding perpendicular hole. The reinforced type drilling drill bit is characterized in that at least one flushing hole is drilled in the end face of the head so as to be communicated with the blind hole in the trouser body, the head and the trouser body are in transitional connection through two sections of structures, the front section is a gauge protection step cylindrical section connected with the head, and the rear section is a reversed cone connected with the trouser body. By the adoption of the reinforced type drilling drill bit, the problems that teeth of an existing drill bit are broken and fall in the early stage and the residue discharging effect is not ideal are well solved and the reinforced type drilling drill bit is widely applied to mountain cutting and rock drilling engineering.

Description

technical field [0001] The invention relates to rock-drilling tools used in rock-drilling engineering, in particular to an enhanced rock-drilling drill bit with gauge-gauge steps. Background technique [0002] At present, the rock drilling bit widely used in rock drilling projects has a trouser body, the front end of the trouser body is a tapered head, the outer diameter of the head is usually larger than the outer diameter of the trousers, and the inner and outer ring alloy teeth are embedded in the head; The internal slag discharge structure mainly adopts a planar structure design, and is equipped with water holes, and the water holes are mainly symmetrically distributed in the center and sideways. The main disadvantages are that the overall rigidity and strength of the trousers are low, the effective volume around the alloy teeth is small, and they are not wear-resistant. In the early and late stages of use, teeth are prone to drop and breakage, and the slag discharge eff...

Claims

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Application Information

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IPC IPC(8): E21B10/36E21B10/46
CPCE21B10/36E21B10/46
Inventor 方新军胡精明
Owner 武穴市长江工具股份有限公司
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