CN203463047U - Clamping device for coal mine - Google Patents

Clamping device for coal mine Download PDF

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Publication number
CN203463047U
CN203463047U CN201320515829.6U CN201320515829U CN203463047U CN 203463047 U CN203463047 U CN 203463047U CN 201320515829 U CN201320515829 U CN 201320515829U CN 203463047 U CN203463047 U CN 203463047U
Authority
CN
China
Prior art keywords
oil cylinder
slip spider
cylinder piston
cylinder body
clamping device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201320515829.6U
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Chinese (zh)
Inventor
刘永中
Original Assignee
刘永中
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 刘永中 filed Critical 刘永中
Priority to CN201320515829.6U priority Critical patent/CN203463047U/en
Application granted granted Critical
Publication of CN203463047U publication Critical patent/CN203463047U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a clamping device for a coal mine. The clamping device comprises a left clamping device and a right clamping device, and is characterized in that the left clamping device comprises a main oil cylinder body, a main sealing ring, a main oil cylinder piston, a left slip bowl, a left slip and clamping keys, wherein the main oil cylinder piston is arranged in the main oil cylinder body; the main sealing ring is arranged between the main oil cylinder body and the main oil cylinder piston; the left slip bowl is arranged on one side of the ejection end of the main oil cylinder piston; the left slip is arranged on the left slip bowl; through holes are formed transversely in the upper part and the lower part of the left slip bowl; support columns are arranged in the through holes; blind holes are formed in right slip bowls at positions which correspond to the support columns; springs are arranged in the blind holes; the springs are matched with the support columns; the left slip is fixed on the left slip bowl in a circumferential direction through upper and lower symmetrical flat keys on the left slip bowl; the right clamping device comprises the right slip bowls, right slips, a backing ring, a spring sleeve, butterfly springs, a secondary oil cylinder piston, a secondary oil cylinder body, screw rods, a secondary sealing ring, a joint piece, a joint sealing ring and springs. The clamping device has the advantages of simple structure, small size, flexibility in use, and prevention of skidding and scraping of drill rods.

Description

A kind of colliery clamper
Technical field
The utility model relates to a kind of clamper, particularly a kind of colliery clamper.
Background technology
Coal mine drilling machine, that colliery is for drilling the equipment of coal mining, and rig is for being connected drilling rod, by drilling rod, complete the process of boring, and because coal seam is deep, so drilling depth is darker, so the mode that drilling rod adopts screw thread to screw jointed rod couples together the drilling rod of a meter, becomes sectional rod, after boring, pre-taking-up drilling rod is also disassembled the drilling rod screwing into single drilling rod, and disassembles the problem that drilling rod clamper used has become us to pay close attention to.
May be because moment of torsion be too large due to drilling rod junction sometimes, connect more firmly, during motor reversion, clamper can not step up completely and clamper is skidded, and can not take like this drilling rod apart and also can make drilling rod scuffing.
In order to overcome these shortcomings of prior art, study through great efforts us and manufactured a kind of colliery clamper, the secondary cylinder of this clamper is outputed an oil circuit with motor reversion oil pipe and is connected, when drilling rod is unloaded in motor reversion, the resistance of motor is larger, the secondary cylinder of clamper is folder tighter just, guarantees that drilling rod junction can dismantle (in other words the resistance of motor reversion and add the power of stepping up of holding be directly proportional) smoothly.
Summary of the invention
The purpose of this utility model is to provide a kind of colliery clamper, and its beneficial effect is simple in structure, volume is little, use is flexible, be difficult for skidding, be difficult for scratching a kind of colliery clamper of drilling rod.
For solving above technical problem, the utility model is a kind of colliery clamper of realizing by the following technical solutions, comprise left clamping device and right clamping device, it is characterized in that: described left clamping device comprises master cylinder body, primary seal circle, main oil cylinder piston, left slip spider, left slips and card key; Described main oil cylinder piston is arranged in master cylinder body, in the middle of described master cylinder body and main oil cylinder piston, be provided with primary seal circle, described main oil cylinder piston ejects end one side and is provided with left slip spider, on described left slip spider, be provided with left slips, described left slip spider upper and lower is laterally provided with through hole, in described through hole, is provided with fore-set; With on the right slip spider of described fore-set correspondence position, be provided with blind hole, in described blind hole, be provided with spring, described spring matches with fore-set, described left slips by be arranged on laterally zygomorphic two the flat strong circumferencial directions of left slip spider fixing with left slip spider on;
Described right clamping device comprises right slip spider, right slips, gasket ring, spring overcoat, butterfly spring, auxiliary oil cylinder piston, auxiliary oil cylinder body, screw rod, secondary seal ring, adapter piece, joint sealing circle and spring, described auxiliary oil cylinder piston is arranged at auxiliary oil cylinder body inner side, between described auxiliary oil cylinder piston and auxiliary oil cylinder body, be provided with secondary seal ring, on described auxiliary oil cylinder piston, be set with disk spring, described disk spring left side is provided with a gasket ring, described disk spring is outside equipped with spring overcoat, described auxiliary oil cylinder piston left end is connected with right slip spider, on described right slip spider, be provided with right slips, described right slip spider and right slips are by being arranged on flat strong the fixing of right slip spider inner side, described right slip spider left side is provided with blind hole, in blind hole, be provided with spring, center, described auxiliary oil cylinder body right side is provided with a fittings body, under described fittings body, be provided with joint sealing circle,
Preferably, described master cylinder body, left slip spider, right slip spider and auxiliary oil cylinder body are all connected by long bolt and lock.
Preferably, described primary seal circle, secondary seal ring, joint sealing circle are made by thermoplastic.
Preferably, described disk spring is of a size of 140*70.5*11.2.
Preferably, described disk spring chi circumferencial direction is evenly distributed on auxiliary oil cylinder piston face, and quantity is 9.
The beneficial effects of the utility model be simple in structure, volume is little, use is flexible, be difficult for skidding, be difficult for scratching a kind of colliery clamper of drilling rod.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is structural representation of the present utility model.
Numeral and the represented corresponding component title of letter in figure:
1. right slips 9. gasket ring 10. spring overcoat 11. butterfly spring 12. auxiliary oil cylinder piston 13. auxiliary oil cylinder body 14. screw rod 15. secondary seal ring 16. fittings body 17. joint sealing circle 18. primary seal circle 19. springs of the right slip spider 8. of master cylinder body left slips 6. card key 7. of the left slip spider 5. of 2. main oil cylinder piston 3. fore-set 4.
The specific embodiment
For technological means, creation characteristic that the utility model is realized, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Shown in Fig. 1, the utility model is a kind of colliery clamper, comprise left clamping device and right clamping device, it is characterized in that: described left clamping device comprises master cylinder body 1, primary seal circle 18, main oil cylinder piston 2, left slip spider 3, left slips 4 and card key 5; Described main oil cylinder piston 2 is arranged in master cylinder body 1, described master cylinder body 1 and the middle primary seal circle 18 that is provided with of main oil cylinder piston 2, described main oil cylinder piston 2 ejects end one side and is provided with left slip spider 4, on described left slip spider 4, be provided with left slips 5, described left slip spider 4 upper and lowers are laterally provided with through hole, are provided with fore-set 3 in described through hole; With on the right slip spider 7 of described fore-set 3 correspondence positions, be provided with blind hole, in described blind hole, be provided with spring 19, described spring 19 matches with fore-set 3, described left slips 5 by be arranged on laterally zygomorphic two flat strong 6 circumferencial directions of left slip spider 4 fixing with left slip spider 4 on;
Described right clamping device comprises right slip spider 7, right slips 8, gasket ring 9, spring overcoat 10, butterfly spring 11, auxiliary oil cylinder piston 12, auxiliary oil cylinder body 13, screw rod 14, secondary seal ring 15, adapter piece 16, joint sealing circle 17 and spring 19, described auxiliary oil cylinder piston 12 is arranged at auxiliary oil cylinder body 13 inner sides, between described auxiliary oil cylinder piston 12 and auxiliary oil cylinder body, be provided with secondary seal ring 15, on described auxiliary oil cylinder piston 12, be set with disk spring 11, described disk spring 11 left sides are provided with a gasket ring 8, described disk spring 11 is outside equipped with spring overcoat 10, described auxiliary oil cylinder piston 12 left ends are connected with right slip spider 7, on described right slip spider 7, be provided with right slips 8, described right slip spider 7 and right slips 8 by be arranged on right slip spider 7 inner sides flat strong 6 fix, described right slip spider 7 left sides are provided with blind hole, in blind hole, be provided with spring 19, described auxiliary oil cylinder body 13 centers, right side are provided with a fittings body 16, under described fittings body 16, be provided with joint sealing circle 17,
Described master cylinder body, left slip spider, right slip spider and auxiliary oil cylinder body are all connected by long bolt and lock, connection by screw rod can well be fixed up clamper, be placed in the excessive situation of oil pressure and cause that clamper is loosening, further prevent the defect that the not tight drilling rod of slips card causes.
Described primary seal circle, secondary seal ring, joint sealing circle are made by elasticity is preferably plastic injection-moulded, and abrasion resistance is better, prevents wearing and tearing in the middle of coordinating, affect its application life.
The utility model is controlled the chucking power in clamper by the pipeline on fittings body when work, the fittings body arranging on the secondary cylinder of oil circuit that motor sends out that the oil pipe that reverses by motor while turning outputs and clamper joins, when unloading drilling rod, the resistance of motor is larger, it is tighter that the secondary cylinder of clamper just presss from both sides, guarantee that drilling rod junction can dismantle smoothly, the resistance of motor reversion and add the power of stepping up of holding and be directly proportional, so just can guarantee trip-out work efficiently, carried out smoothly.
The utlity model has in sum beneficial effect is really; Its beneficial effect is simple in structure, volume is little, use is flexible, be difficult for skidding, be difficult for scratching a kind of colliery clamper of drilling rod.
More than show and described basic principle of the present utility model, principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and manual, describes just illustrates principle of the present utility model; under the prerequisite that does not depart from the utility model spirit and scope, the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims (5)

1. a colliery clamper, comprises left clamping device and right clamping device, it is characterized in that: described left clamping device comprises master cylinder body, primary seal circle, main oil cylinder piston, left slip spider, left slips and card key; Described main oil cylinder piston is arranged in master cylinder body, in the middle of described master cylinder body and main oil cylinder piston, be provided with primary seal circle, described main oil cylinder piston ejects end one side and is provided with left slip spider, on described left slip spider, be provided with left slips, described left slip spider upper and lower is laterally provided with through hole, in described through hole, is provided with fore-set; With on the right slip spider of described fore-set correspondence position, be provided with blind hole, in described blind hole, be provided with spring, described spring matches with fore-set, described left slips by be arranged on laterally zygomorphic two the flat strong circumferencial directions of left slip spider fixing with left slip spider on;
Described right clamping device comprises right slip spider, right slips, gasket ring, spring overcoat, butterfly spring, auxiliary oil cylinder piston, auxiliary oil cylinder body, screw rod, secondary seal ring, adapter piece, joint sealing circle and spring, described auxiliary oil cylinder piston is arranged at auxiliary oil cylinder body inner side, between described auxiliary oil cylinder piston and auxiliary oil cylinder body, be provided with secondary seal ring, on described auxiliary oil cylinder piston, be set with disk spring, described disk spring left side is provided with a gasket ring, described disk spring is outside equipped with spring overcoat, described auxiliary oil cylinder piston left end is connected with right slip spider, on described right slip spider, be provided with right slips, described right slip spider and right slips are by being arranged on flat strong the fixing of right slip spider inner side, described right slip spider left side is provided with blind hole, in blind hole, be provided with spring, center, described auxiliary oil cylinder body right side is provided with a fittings body, under described fittings body, be provided with joint sealing circle.
2. a kind of colliery according to claim 1 clamper, is characterized in that; Described master cylinder body, left slip spider, right slip spider and auxiliary oil cylinder body are all connected by long bolt and lock.
3. a kind of colliery according to claim 1 clamper, is characterized in that; Described primary seal circle, secondary seal ring, joint sealing circle are made by thermoplastic.
4. a kind of colliery according to claim 1 clamper, is characterized in that; Described disk spring is of a size of 140*70.5*11.2.
5. a kind of colliery according to claim 1 clamper, is characterized in that; Described disk spring chi circumferencial direction is evenly distributed on auxiliary oil cylinder piston face, and quantity is 9.
CN201320515829.6U 2013-08-23 2013-08-23 Clamping device for coal mine Expired - Fee Related CN203463047U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320515829.6U CN203463047U (en) 2013-08-23 2013-08-23 Clamping device for coal mine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320515829.6U CN203463047U (en) 2013-08-23 2013-08-23 Clamping device for coal mine

Publications (1)

Publication Number Publication Date
CN203463047U true CN203463047U (en) 2014-03-05

Family

ID=50175419

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320515829.6U Expired - Fee Related CN203463047U (en) 2013-08-23 2013-08-23 Clamping device for coal mine

Country Status (1)

Country Link
CN (1) CN203463047U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104948129A (en) * 2015-07-02 2015-09-30 淮南矿业(集团)有限责任公司 Hole sealing pipe placing device
CN104989298A (en) * 2015-07-20 2015-10-21 淮南矿业(集团)有限责任公司 Holder

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104948129A (en) * 2015-07-02 2015-09-30 淮南矿业(集团)有限责任公司 Hole sealing pipe placing device
CN104989298A (en) * 2015-07-20 2015-10-21 淮南矿业(集团)有限责任公司 Holder

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Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140305

Termination date: 20150823

EXPY Termination of patent right or utility model