CN103410546B - Coal-mine hydraulic support opens a grade formula base - Google Patents
Coal-mine hydraulic support opens a grade formula base Download PDFInfo
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- CN103410546B CN103410546B CN201310383741.8A CN201310383741A CN103410546B CN 103410546 B CN103410546 B CN 103410546B CN 201310383741 A CN201310383741 A CN 201310383741A CN 103410546 B CN103410546 B CN 103410546B
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- formula base
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- grade formula
- lifting device
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Abstract
The invention discloses a kind of coal-mine hydraulic support and open a grade formula base, comprise out a grade formula base, be longitudinally arranged on out the pusher rod that grade formula base opens shelves place, and be arranged on out the bottom lifting device on grade formula base; Bottom lifting device is be symmetrical in out two that grade formula base longitudinal midline is arranged on out grade formula base front portion; Each bottom lifting device includes: piston rod is upwards arranged on out lifts end jack in grade formula base member case die cavity, the piston rod top of lifting end jack is hinged with the positioning seat be fixed on out on grade formula base, the cylinder side wall lifting end jack is fixed with otic placode, and otic placode extends to out opening grade place and being fixedly connected with the wear-resistant block be positioned at above described pusher rod of grade formula base.The invention has the advantages that lifting end jack is arranged on out in grade box chamber, formula pan frontward end both sides, saved and opened a grade central space for formula base, the row's of improve float coal performance, makes to move frame more smooth, and support pedestrian space and ventilation section are maximized, handled easily person moves back and forth and ventilates.
Description
Technical field
The present invention relates to coal-mine hydraulic support, especially relate to coal-mine hydraulic support and open a grade formula base.
Background technology
Hydraulic support is the important component part of coal-mine integrated-mining equipment, and its Main Function is supporting Stope roof, maintenance safe working space, passes work plane and mines, realize coal mining comprehensive mechanization.According to the difference of down-hole geological conditions, hydraulic support is in coal mining motion process, and often occur problem at the bottom of the bundle of bracket base front end, therefore portion support base needs to arrange bottom lifting device, to ensure that bracket base moves forward smoothly under soft seat condition.
At present, the hydraulic support being provided with bottom lifting device opens a grade formula base, and its bottom lifting device is arranged on middle neutral (base bridge) position of opening grade formula base more.The hydraulic support spatial constructional dimensions of medium-thickness seam allows, and generally bottom lifting device is arranged in base bridge rear end, pricks end phenomenon than being easier to solve bracket base leading portion.But, for girdle, ultra-thin coal seam, (coal seam that thickness is less than 1.3 meters is called girdle, the coal seam that thickness is less than 0.8 meter is called ultra-thin coal seam) hydraulic support, because bulk is limited, especially when support drops to minimum design height, even if be arranged in base bridge front end, also can interfere with back timber; Even if reduce physical dimension to arrange reluctantly, it is also very limited to lift end effect, and is arranged in base bridge front end, occupies support walkway and ventilation cross section place, is unsuitable for the exploitation to girdle.
Summary of the invention
The object of the invention is to provide a kind of coal-mine hydraulic support for girdle, ultra-thin coal seam to open a grade formula base.
For achieving the above object, the present invention takes following technical proposals:
Coal-mine hydraulic support of the present invention opens a grade formula base, comprises out a grade formula base, opens the pusher rod that grade formula base opens shelves place, and be arranged on out the bottom lifting device on grade formula base described in being longitudinally arranged on; Described bottom lifting device is be symmetrical in out two that grade formula base longitudinal midline is arranged on out grade formula base front portion; Each bottom lifting device includes:
be arranged on out and lift end jack in grade formula base member case die cavity, described in lift end jack piston rod upwards arrange, its top and the positioning seat be fixed on out on grade formula base are hinged, the cylinder side wall lifting end jack is fixed with otic placode, and described otic placode extends to out opening grade place and being fixedly connected with the wear-resistant block be positioned at above described pusher rod of grade formula base.
Lifting end jack described in the invention has the advantages that is arranged on out in grade box chamber, formula pan frontward end both sides, save and opened a grade central space for formula base, the row's of not only increasing float coal performance, make to move frame more smooth, and support pedestrian space and ventilation section are maximized, handled easily person moves back and forth and ventilates; Bottom lifting device of the present invention is installed simple, only has a bearing pin and opens a grade formula base and be connected; Lift end mode special, whole bottom lifting device easy-to-damage element is only wear-resistant block, can the better wear-resistant block of batch after down-hole runs one section, has ensured the reliability of bottom lifting device, has decreased the demolition, installation workload of bottom lifting device, saved human and material resources cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is that the A-A of Fig. 1 is to sectional structure chart.
Fig. 3 is the I portion structure for amplifying schematic diagram of Fig. 1.
Fig. 4 is the schematic perspective view lifting end jack of the present invention.
Detailed description of the invention
As Figure 1-4, coal-mine hydraulic support of the present invention opens a grade formula base, comprises out a grade formula base 1, opens the pusher rod 2 that grade formula base 1 opens shelves place, and be arranged on out the bottom lifting device on grade formula base 1 described in being longitudinally arranged on; Described bottom lifting device is be symmetrical in out two that grade formula base 1 longitudinal midline 3 is arranged on out grade formula base 1 front portion; Each bottom lifting device includes: piston rod 4 is upwards arranged on out lifts end jack 5 in grade formula base 1 box chamber, described piston rod 4 top of lifting end jack 5 is hinged by bearing pin 9 and the positioning seat 6 be fixed on out on grade formula base 1, the cylinder side wall lifting end jack 5 is fixed with otic placode 7, and described otic placode 7 extends to out opening grade place and being fixedly connected with by bolt 10 with the wear-resistant block 8 be positioned at above described pusher rod 2 of grade formula base 1.
A grade formula base of opening of the present invention is lifted the end and is moved frame process and be summarized as follows:
When hydraulic support need to lift the end move frame time, lift end jack 5 cylinder body and move down, drive wear-resistant block 8 to move down, wear-resistant block 8 moves to pusher rod 2 end face, and required separation distance is lifted in whole grade formula base 1 front end of opening, and hydraulic support moves forward smoothly.Wear-resistant block 8 slides at the end face of pusher rod 2, be not difficult to find out, the dominant failure impairment unit of whole bottom lifting device is only wear-resistant block 8, wear-resistant block 8 is connected with high-strength bolt 10 groups with the otic placode 7 lifting end jack 5, also can connect by high-strength pin, wear-resistant block 8 pusher rod 2 end face support slide, after damage can opening grade formula base 1 middle gear place change.
Claims (1)
1. coal-mine hydraulic support opens a grade formula base, comprises out a grade formula base (1), opens the pusher rod (2) that grade formula base (1) opens shelves place, and be arranged on out the bottom lifting device on grade formula base (1) described in being longitudinally arranged on; It is characterized in that: described bottom lifting device is for being symmetrical in out two that grade formula base (1) longitudinal midline (3) is arranged on out grade formula base (1) front portion; Each bottom lifting device includes:
be arranged on out and lift end jack (5) in grade formula base (1) box chamber, described in lift end jack (5) piston rod (4) upwards arrange, its top and the positioning seat (6) be fixed on out on grade formula base (1) are hinged, the cylinder side wall lifting end jack (5) is fixed with otic placode (7), and described otic placode (7) extends to out opening grade place and being fixedly connected with the wear-resistant block (8) being positioned at described pusher rod (2) top of grade formula base (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310383741.8A CN103410546B (en) | 2013-08-29 | 2013-08-29 | Coal-mine hydraulic support opens a grade formula base |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310383741.8A CN103410546B (en) | 2013-08-29 | 2013-08-29 | Coal-mine hydraulic support opens a grade formula base |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103410546A CN103410546A (en) | 2013-11-27 |
| CN103410546B true CN103410546B (en) | 2016-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310383741.8A Active CN103410546B (en) | 2013-08-29 | 2013-08-29 | Coal-mine hydraulic support opens a grade formula base |
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| Country | Link |
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| CN (1) | CN103410546B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109519203A (en) * | 2018-12-24 | 2019-03-26 | 中煤北京煤矿机械有限责任公司 | Laterally scissor bottom raising mechanism |
Citations (9)
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|---|---|---|---|---|
| RU2012819C1 (en) * | 1992-07-15 | 1994-05-15 | Вячеслав Викторович Вавилов | Device for raising base of powered support unit |
| CN101526005A (en) * | 2009-04-09 | 2009-09-09 | 山东科技大学 | Skid shoe type bottom raising mechanism of hydraulic support |
| CN201306179Y (en) * | 2008-12-09 | 2009-09-09 | 郑州四维机电设备制造有限公司 | Filling and supporting hydraulic support with retaining device |
| CN101592035A (en) * | 2009-06-25 | 2009-12-02 | 中煤北京煤矿机械有限责任公司 | Big mining height shield type low caving coal hydraulic support |
| CN201546744U (en) * | 2009-12-11 | 2010-08-11 | 兖州煤业股份有限公司 | Bottom lifting device of hydraulic bracket of thin coal seam |
| CN201687496U (en) * | 2010-04-01 | 2010-12-29 | 河北天择重型机械有限公司 | Four-column straight-guidebar wall retaining type filling hydraulic bracket |
| CN102251789A (en) * | 2011-08-04 | 2011-11-23 | 中平能化集团机械制造有限公司 | Integrated self-shift hydraulic support for placing top coal in steeply inclined roadway |
| CN202560280U (en) * | 2012-04-27 | 2012-11-28 | 山东天晟煤矿装备有限公司 | Multifunctional filling hydraulic support |
| CN203463132U (en) * | 2013-08-29 | 2014-03-05 | 郑州煤矿机械集团股份有限公司 | Crotch type base of hydraulic support for coal mines |
-
2013
- 2013-08-29 CN CN201310383741.8A patent/CN103410546B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2012819C1 (en) * | 1992-07-15 | 1994-05-15 | Вячеслав Викторович Вавилов | Device for raising base of powered support unit |
| CN201306179Y (en) * | 2008-12-09 | 2009-09-09 | 郑州四维机电设备制造有限公司 | Filling and supporting hydraulic support with retaining device |
| CN101526005A (en) * | 2009-04-09 | 2009-09-09 | 山东科技大学 | Skid shoe type bottom raising mechanism of hydraulic support |
| CN101592035A (en) * | 2009-06-25 | 2009-12-02 | 中煤北京煤矿机械有限责任公司 | Big mining height shield type low caving coal hydraulic support |
| CN201546744U (en) * | 2009-12-11 | 2010-08-11 | 兖州煤业股份有限公司 | Bottom lifting device of hydraulic bracket of thin coal seam |
| CN201687496U (en) * | 2010-04-01 | 2010-12-29 | 河北天择重型机械有限公司 | Four-column straight-guidebar wall retaining type filling hydraulic bracket |
| CN102251789A (en) * | 2011-08-04 | 2011-11-23 | 中平能化集团机械制造有限公司 | Integrated self-shift hydraulic support for placing top coal in steeply inclined roadway |
| CN202560280U (en) * | 2012-04-27 | 2012-11-28 | 山东天晟煤矿装备有限公司 | Multifunctional filling hydraulic support |
| CN203463132U (en) * | 2013-08-29 | 2014-03-05 | 郑州煤矿机械集团股份有限公司 | Crotch type base of hydraulic support for coal mines |
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| Publication number | Publication date |
|---|---|
| CN103410546A (en) | 2013-11-27 |
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