CN103557023A - Hydraulic bracket for extremely soft coal bed - Google Patents
Hydraulic bracket for extremely soft coal bed Download PDFInfo
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- CN103557023A CN103557023A CN201310575263.0A CN201310575263A CN103557023A CN 103557023 A CN103557023 A CN 103557023A CN 201310575263 A CN201310575263 A CN 201310575263A CN 103557023 A CN103557023 A CN 103557023A
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- support
- dead
- coal seam
- soft
- hydraulic support
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Abstract
The invention discloses a hydraulic bracket for an extremely soft coal bed. The hydraulic bracket comprises a top beam, wherein a telescopic girder is arranged in the front of the top beam; a lengthened beam is arranged at the front end of the telescopic girder; a bottomed sealing device is arranged at the rear part of the bracket; during working, the front end of the lengthened beam is inserted into a coal wall; a positioning bolt, as well as a stressed key and a key slot, is arranged between the lengthened beam and the telescopic girder; the bottomed sealing device comprises a tail beam with a movable side guard plate and an insert plate mechanism, the lower end of the insert plate mechanism in maximal extension state is lower than the bottom of the bracket; two wipers are arranged at the bottom of a thrust rod of a base thrust mechanism. According to the bracket provided by the invention, with the force of a bracket jack, the support for the coal wall insert plate is realized, full sealing of old pool side tail beam insert plates is realized, and accordingly, the safe and efficient operation on working face of the extremely soft coal bed is realized.
Description
Technical field
The present invention relates to the hydraulic support that a kind of colliery is used, relate in particular to a kind of dead-soft coal seam hydraulic support.
Background technology
At present, have a large amount of dead-softs coal seam in many places, ature of coal hardness f is only 1 left and right, and coal bed joints growth, belongs to and is difficult to working seam, and these collieries can only adopt artificial coal mining now, and coal-mining method is as follows:
The supportings such as support or monomer or stringer for work plane, adopt scrapper conveyor transportation, and rib and old man adopt the sealings such as plank or bamboo raft, dig a hole in nearly top board place at rib, then choker block lath removes sealing lath, coal is caving outflow, piecemeal or compartment put coal, with scrapper conveyor, transport.
Coal-mining method of the prior art, cannot realize mechanical mining, and efficiency is low, poor stability.
Summary of the invention
The object of this invention is to provide a kind of safety, the high-efficient homework dead-soft coal seam hydraulic support that can realize dead-soft working face of coal seam.
The object of the invention is to be achieved through the following technical solutions:
Dead-soft of the present invention coal seam hydraulic support, comprises back timber, and the front portion of described back timber is provided with extensible canopy, it is characterized in that, the front end of described extensible canopy arranges lengthening beam, and the rear portion of this support is provided with touches end sealing device, and the front end of lengthening beam described in the course of work is inserted in rib.
As seen from the above technical solution provided by the invention, the dead-soft coal seam hydraulic support that the embodiment of the present invention provides, because the front end of extensible canopy arranges lengthening beam, the rear portion of support is provided with touches end sealing device, in the course of work, the front end of lengthening beam is inserted in rib, utilize the strength of bracket jack to realize rib built-in inserted plate and support, tail beam flashboard realizes sealing completely for old man's side, can realize safety, the high-efficient homework of dead-soft working face of coal seam.
Accompanying drawing explanation
The structural representation of the dead-soft coal seam hydraulic support that Fig. 1 provides for the embodiment of the present invention;
Fig. 2 a is the plane structure schematic diagram of lengthening beam in the embodiment of the present invention;
Fig. 2 b is the side structure schematic diagram of lengthening beam in the embodiment of the present invention;
Fig. 3 is the structural representation that in the embodiment of the present invention, lengthening beam is connected with extensible canopy;
Fig. 4 is the structural representation of thrust gear in the embodiment of the present invention;
The application state schematic diagram of the dead-soft coal seam hydraulic support that Fig. 5 provides for the embodiment of the present invention.
In figure: 1, back timber, 2,, 3, lengthening beam, 4, tail boom, 5, flashboard mechanism, 6, extensible canopy, 7, positioning bolt, 8, stressed key, 9, pusher rod, 10, the front device that sweeps, 11, after sweep device.
The specific embodiment
To be described in further detail the embodiment of the present invention below.
Dead-soft of the present invention coal seam hydraulic support, its preferably the specific embodiment be:
Comprise back timber, the front portion of described back timber is provided with extensible canopy, and the front end of described extensible canopy arranges lengthening beam, and the rear portion of this support is provided with touches end sealing device, and the front end of lengthening beam described in the course of work is inserted in rib.
Between described lengthening beam and extensible canopy, be provided with positioning bolt, be also provided with the stressed key and the keyway that match.
Sealing device comprises tail boom at the described tactile end, and described tail boom is provided with movable side protection plate and flashboard mechanism, and described flashboard mechanism stretches out under maximum rating its lower end lower than the bottom surface of this support.
The base of this support is provided with thrust gear, and described thrust gear comprises pusher rod, and the bottom of described pusher rod is provided with two and sweeps device, before being respectively, sweep device and after sweep device, be located at respectively the front and rear of described pusher rod.
This support is two post hydraulic supports, is provided with two balance jack etc. between the back timber of described two post hydraulic supports and caving shield.
This support is four post hydraulic supports.
This support is provided with reverse-four-link-bar structure.
The afterbody of this support adopts balance arm as sealing device of the described tactile end.
The structure that the afterbody employing back link of this support adds waste rock board is as sealing device of the described tactile end.
The invention solves while using ordinary stent in dead-soft coal seam, beam front top plate and coal wall caving, be caving uncontrollablely, old man's bastard coal etc. pours between frame, the problem such as in frame.Existing coal-mining method is carried out to mechanization and automation, utilize the strength of bracket jack to realize the support of rib built-in inserted plate, coal-winning machine is coaling, and advances fast, old man's side realizes sealing completely by tail beam flashboard, with this, realizes safety, the high-efficient homework of dead-soft working face of coal seam.
Principle of the present invention is:
As shown in Figure 5, the set cap front end strong point is deep into depths in rib, takes measures to strengthen the most advanced and sophisticated support force of support, reduce rib pressure, control rib and be caving thickness;
Because be dead-soft coal seam, utilize the spontaneous caving of coal to mine, then use the loading of coal-winning machine;
The sealing of old man's direction adopts the form of tail beam flashboard to insert end sealing;
Pusher rod is swept device for coal and is prevented long-pending coal.
Specific embodiment:
Shown in a, Fig. 2 b, the front portion of back timber is provided with extensible canopy as shown in Figure 1, Figure 2, and the front end of extensible canopy arranges lengthening beam, by steel plate installed-welded, is formed, and size is determined according to corollary equipment.
As shown in Figure 3, lengthening beam and extensible canopy adopt Bolt to position, the fixed form that keyway is stressed, and lengthening beam is controlled and is stretched receipts by the jack that stretches with extensible canopy.
For guaranteeing the most advanced and sophisticated support force of enough lengthening beams, except enough working resistances, the balance adjustment power much larger than general support is set, as adopts two large cylinder diameter balance jack etc.
As shown in Figure 1, support afterbody arranges the tail beam flashboard mechanism of similar sublevel caving hydrau lic support, and tail boom and back timber, caving shield are the same, and movable side protection plate is set, and tail beam flashboard mechanism can realize preferably and touch end sealing, and can form necessary plant maintenance safe space.
As shown in Figure 4, because ature of coal is soft, be easy to amass under pusher rod, cause operation inconvenience, so pusher rod is provided with pusher rod and sweeps device for coal.
It is embodiment that protection scope of the present invention is not limited to, and can be also following specific embodiment:
The four post hydraulic supports with lengthening beam and tail seal device;
With lengthening beam structure, reverse-four-link-bar, afterbody, adopt the hydraulic support of the sealing devices such as balance arm;
With lengthening beam structure, afterbody, adopt back link to add the hydraulic support of the sealing device of waste rock board;
Hydraulic support with other form of structure or machine made lengthening beam.
The above; be only the present invention's specific embodiment preferably, but protection scope of the present invention is not limited to this, is anyly familiar with in technical scope that those skilled in the art disclose in the present invention; the variation that can expect easily or replacement, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (9)
1. a dead-soft coal seam hydraulic support, comprises back timber, and the front portion of described back timber is provided with extensible canopy, it is characterized in that, the front end of described extensible canopy arranges lengthening beam, and the rear portion of this support is provided with touches end sealing device, and the front end of lengthening beam described in the course of work is inserted in rib.
2. dead-soft according to claim 1 coal seam hydraulic support, is characterized in that, between described lengthening beam and extensible canopy, is provided with positioning bolt, is also provided with the stressed key and the keyway that match.
3. dead-soft according to claim 1 coal seam hydraulic support, is characterized in that, sealing device of the described tactile end comprises tail boom, and described tail boom is provided with movable side protection plate and flashboard mechanism, and described flashboard mechanism stretches out under maximum rating its lower end lower than the bottom surface of this support.
4. according to the dead-soft coal seam hydraulic support described in claim 1,2 or 3, it is characterized in that, the base of this support is provided with thrust gear, described thrust gear comprises pusher rod, the bottom of described pusher rod is provided with two and sweeps device, before being respectively, sweep device and after sweep device, be located at respectively the front and rear of described pusher rod.
5. dead-soft according to claim 4 coal seam hydraulic support, is characterized in that, this support is two post hydraulic supports, is provided with two balance jack etc. between the back timber of described two post hydraulic supports and caving shield.
6. dead-soft according to claim 4 coal seam hydraulic support, is characterized in that, this support is four post hydraulic supports.
7. dead-soft according to claim 4 coal seam hydraulic support, is characterized in that, this support is provided with reverse-four-link-bar structure.
8. dead-soft according to claim 1 coal seam hydraulic support, is characterized in that, the afterbody of this support adopts balance arm as sealing device of the described tactile end.
9. dead-soft according to claim 1 coal seam hydraulic support, is characterized in that, the structure that the afterbody employing back link of this support adds waste rock board is as sealing device of the described tactile end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310575263.0A CN103557023B (en) | 2013-11-15 | 2013-11-15 | Extremely soft seam hydraulic support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310575263.0A CN103557023B (en) | 2013-11-15 | 2013-11-15 | Extremely soft seam hydraulic support |
Publications (2)
| Publication Number | Publication Date |
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| CN103557023A true CN103557023A (en) | 2014-02-05 |
| CN103557023B CN103557023B (en) | 2016-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310575263.0A Expired - Fee Related CN103557023B (en) | 2013-11-15 | 2013-11-15 | Extremely soft seam hydraulic support |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106401623A (en) * | 2016-11-09 | 2017-02-15 | 安徽理工大学 | Full-closed coal mining device for soil-like coal working face and coal mining method of full-closed coal mining device |
| CN107035406A (en) * | 2017-05-26 | 2017-08-11 | 中国矿业大学 | A kind of three-soft seam is faced upward, underhand stopes support anti-plug bottom method |
| WO2018094705A1 (en) * | 2016-11-25 | 2018-05-31 | 安徽理工大学 | Hydraulic support frame, and hydraulic support control method |
| WO2018094657A1 (en) * | 2016-11-24 | 2018-05-31 | 安徽理工大学 | Hydraulic support for soil-like coal working face, and protection method for coal seam mining |
| CN115352870A (en) * | 2022-08-15 | 2022-11-18 | 凯盛重工有限公司 | Auxiliary process mechanized equipment for coal mine underground large-inclination-angle working face and using method thereof |
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| RU2004814C1 (en) * | 1991-06-13 | 1993-12-15 | Днепропетровский горный институт | Powered support for junction between longwall face and working |
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| CN101245709A (en) * | 2007-09-26 | 2008-08-20 | 中煤北京煤矿机械有限责任公司 | Hydraulic prop frame for low position blasting down the roof coal |
| CN101666230A (en) * | 2009-10-09 | 2010-03-10 | 耿学文 | Coal mining method of lengthened front-beam fully-mechanized mining and fully-mechanized top coal carving of three-soft coal seam and equipment |
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| CN203594466U (en) * | 2013-11-15 | 2014-05-14 | 中煤北京煤矿机械有限责任公司 | Extreme soft coal seam hydraulic support |
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2013
- 2013-11-15 CN CN201310575263.0A patent/CN103557023B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| RU2004814C1 (en) * | 1991-06-13 | 1993-12-15 | Днепропетровский горный институт | Powered support for junction between longwall face and working |
| CN2612799Y (en) * | 2003-03-05 | 2004-04-21 | 兖矿集团有限公司 | Hydraulic prop frame for low position blasting down the roof coal |
| DE202005007257U1 (en) * | 2005-05-03 | 2005-07-07 | Maschinenfabrik Glückauf GmbH & Co. KG | Expansion rack for an underground track |
| CN201062525Y (en) * | 2007-08-10 | 2008-05-21 | 郑州煤矿机械集团有限责任公司 | Four-post supporting secured low-roof coal bracket |
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| CN201513189U (en) * | 2009-09-24 | 2010-06-23 | 郑州四维机电设备制造有限公司 | Rear support of stowing hydraulic support |
| CN101666230A (en) * | 2009-10-09 | 2010-03-10 | 耿学文 | Coal mining method of lengthened front-beam fully-mechanized mining and fully-mechanized top coal carving of three-soft coal seam and equipment |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106401623A (en) * | 2016-11-09 | 2017-02-15 | 安徽理工大学 | Full-closed coal mining device for soil-like coal working face and coal mining method of full-closed coal mining device |
| WO2018086327A1 (en) * | 2016-11-09 | 2018-05-17 | 安徽理工大学 | Full-closed coal mining device for soil-like coal working face and coal mining method thereof |
| WO2018094657A1 (en) * | 2016-11-24 | 2018-05-31 | 安徽理工大学 | Hydraulic support for soil-like coal working face, and protection method for coal seam mining |
| WO2018094705A1 (en) * | 2016-11-25 | 2018-05-31 | 安徽理工大学 | Hydraulic support frame, and hydraulic support control method |
| CN107035406A (en) * | 2017-05-26 | 2017-08-11 | 中国矿业大学 | A kind of three-soft seam is faced upward, underhand stopes support anti-plug bottom method |
| CN107035406B (en) * | 2017-05-26 | 2019-03-19 | 中国矿业大学 | A kind of three-soft seam faces upward, underhand stopes bracket anti-plug bottom method |
| CN115352870A (en) * | 2022-08-15 | 2022-11-18 | 凯盛重工有限公司 | Auxiliary process mechanized equipment for coal mine underground large-inclination-angle working face and using method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103557023B (en) | 2016-07-06 |
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Granted publication date: 20160706 Termination date: 20161115 |