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Quick-change slips hydraulic rubber cylinder chuck

A technology of rubber cartridges and chucks, which is applied to drilling equipment, earthwork drilling, drill pipes, etc., can solve the problems of shortening the service life of rubber cartridges and increasing production costs, so as to ensure coordination of actions, improve efficiency, and lower cracking pressure Effect

Active Publication Date: 2011-10-26
XIAN RES INST OF CHINA COAL TECH& ENG GROUP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the past, when replacing the slips of the hydraulic rubber cartridge chuck, the hydraulic chuck needs to be disassembled and reassembled; in most cases, the rubber cartridge is also replaced at the same time, which artificially shortens the use of the rubber cartridge lifespan, increase production cost

Method used

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  • Quick-change slips hydraulic rubber cylinder chuck
  • Quick-change slips hydraulic rubber cylinder chuck
  • Quick-change slips hydraulic rubber cylinder chuck

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Embodiment Construction

[0017] See figure 1 , figure 2 , The present invention adds a slip seat 6 and an end gland 17 on the basis of the hydraulic rubber cartridge chuck. When replacing slips of different specifications and sizes, remove the end gland 17 and take out the old slips and replace Install the new slip and install the upper end gland 17.

[0018] See figure 2 , image 3 , The quick-change slip hydraulic rubber cartridge chuck of the present invention includes a long pin 1, a pull plate 2, a stud bolt 3, a nut 4, a back cover 5, a slip seat 6, a chuck body 7, a rubber cartridge 8, The supporting ring 9, the slip 10, the end pressure ring 11, the torque transmission plate 12, the front cover 13, the spring 14, the short pin 15, the backing plate 16, and the end pressure cover 17 are composed of parts. The transfer plate 2, the rear cover 5, the chuck body 7, the rubber cylinder 8, the support ring 9, the end pressure ring 11, the front cover 13 and the backing plate 16 form a unilateral flex...

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Abstract

The invention relates to a chucking device, in particular to a quick-change slips hydraulic rubber cylinder chuck which adapts to a full hydraulic power head drill machine. When the slips of the prior hydraulic rubber cylinder chuck is replaced, a hydraulic slips disc needs to be integrally disassembled for reassembly, and under most conditions, the rubber cylinder is replaced simultaneously, so the service life of the rubber cylinder is manually shortened, and the production cost is increased. On the basis of the hydraulic rubber cylinder chuck, the quick-change slips hydraulic rubber cylinder chuck is additionally provided with the slips, a slips seat and an end press cover, and when the slips in different specification sizes is replaced, only the end press cover needs to be disassembled so as to pump out the slips from the slips seat. The hydraulic chuck does not need to be integrally disassembled so as to achieve the aim of quick change. The quick-change slips hydraulic rubber cylinder chuck has small outline dimension and low opening pressure, is beneficial to the pressure coordination between branch paths of a hydraulic system, improves the efficiency of the hydraulic systemand also has the advantages of safe and reliable chucking work of the hydraulic rubber cylinder chuck and small rotation inertia. When the quick-change slips hydraulic rubber cylinder chuck is matched with a hydraulic holder in the hydraulic system with the function of linkage, the quick-change slips hydraulic rubber cylinder chuck can guarantee the coordinated motion.

Description

Technical field [0001] The invention relates to a clamping device, in particular to a quick-change slip hydraulic rubber cylinder chuck on a full hydraulic power head drilling rig, usually connected with the power head output shaft of the drilling rig, for clamping active drill rods and making The torque of the power head is transmitted to the drilling tool in the hole. Background technique [0002] In the past, when replacing slips, the hydraulic chuck had to be disassembled and reassembled; in most cases, the rubber cartridges were also replaced at the same time, which artificially shortened the use of the rubber cartridges. Life, increase production costs. [0003] As one of the main actuators of a full hydraulic drilling rig, the basic requirement for the chuck is that when the drill pipe is clamped, the action must be rapid, and there must be sufficient clamping force to ensure that the clamped drill rod and slips There is no relative sliding between them. Specifically, the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B19/10
Inventor 殷新胜孙保山魏欢欢
Owner XIAN RES INST OF CHINA COAL TECH& ENG GROUP CORP
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