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Anticollision guide sleeve of drill bit of large drilling machine

A technology for guide sleeves and drilling rigs, which is applied in drilling tools, drilling equipment, earthwork drilling and mining, etc. It can solve problems such as bracket deformation and bracket scrapping, and achieve the effects of avoiding collisions, increasing service life, and reducing working noise

Inactive Publication Date: 2017-04-26
ZHEJIANG ZHONGRUI ENG MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] When the original large-scale drilling rig is working, it is necessary to select a positioning bracket to locate the position where the drill bit enters. When the drilling rig transports the drill bit and enters the positioning bracket, it usually collides with the bracket. Over time, the bracket will deform and cause the bracket to be scrapped. In order to solve this problem It is very necessary to design a collision prevention device

Method used

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  • Anticollision guide sleeve of drill bit of large drilling machine
  • Anticollision guide sleeve of drill bit of large drilling machine
  • Anticollision guide sleeve of drill bit of large drilling machine

Examples

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Embodiment

[0017] When just starting to dock the drill bit with the positioning bracket, insert the drum-shaped stabilizer 5 with the drill bit into the positioning bracket equipped with the guide sleeve 1, and the guide roller 4 on the drum-shaped stabilizer 5 runs along the rubber backing ring 2 The guide groove 3 slides so that the drill bit can enter the bracket smoothly. Since the inner ring of the guide sleeve 1 adopts the rubber backing ring 2, the impact force when the drill bit collides with the guide sleeve 1 can be effectively reduced.

[0018] A straight guide rail through hole 9 is arranged on the bracket plate 7 of the guide roller 4, so that the rotating shaft of the guide roller 4 can slide in the straight guide rail through hole 9, and a return spring 8 is installed in the bracket plate 7 to reduce the impact of the guide roller 4 itself The force can effectively protect the positioning bracket and the guide sleeve 1, so that the service life of the positioning bracket is...

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Abstract

The invention relates to an anticollision guide sleeve of a drill bit of a large drilling machine. The anticollision guide sleeve of the drill bit of the large drilling machine comprises a guide sleeve body, a drum-type stabilizer and guide rollers. A circle of rubber pad rings are arranged in the side wall of the inner ring of the guide sleeve body, a circle of the guide rollers are evenly installed on the outer circle of the drum-type stabilizer around the circle center, the drum-type stabilizer is slidably installed in the guide sleeve body, and guide grooves matched with the guide rollers are formed in the rubber pad rings. The anticollision guide sleeve of the drill bit of the large drilling machine has the characteristics that the work noise is reduced, the situation that the drill bit and a positioning support have a collision is avoided, and the service life of the positioning support is prolonged.

Description

technical field [0001] The invention relates to the field of auxiliary structures of large drilling rigs, in particular to an anti-collision guide sleeve for drill bits of large drilling rigs. Background technique [0002] When the original large-scale drilling rig is working, it is necessary to select a positioning bracket to locate the position where the drill bit enters. When the drilling rig transports the drill bit and enters the positioning bracket, it usually collides with the bracket. Over time, the bracket will deform and cause the bracket to be scrapped. In order to solve this problem It is very necessary to design a device to prevent collisions. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a large-scale drill bit anti-collision guide sleeve, which has the characteristics of reducing working noise, avoiding the collision between the drill bit and the positioning bracket, and improving the service lif...

Claims

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Application Information

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IPC IPC(8): E21B12/04
CPCE21B12/04
Inventor 张良夫吴岳周跃阳张健
Owner ZHEJIANG ZHONGRUI ENG MACHINERY
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