CN105626117A - Hydraulic support and jacking beam for hydraulic support - Google Patents
Hydraulic support and jacking beam for hydraulic support Download PDFInfo
- Publication number
- CN105626117A CN105626117A CN201610103447.0A CN201610103447A CN105626117A CN 105626117 A CN105626117 A CN 105626117A CN 201610103447 A CN201610103447 A CN 201610103447A CN 105626117 A CN105626117 A CN 105626117A
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- Prior art keywords
- back timber
- hydraulic support
- fixed
- sideboard
- fixed dam
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- 230000011218 segmentation Effects 0.000 claims description 29
- 239000003245 coal Substances 0.000 description 8
- 238000005065 mining Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000032258 transport Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
- E21D23/06—Special mine caps or special tops of pit-props for permitting step-by-step movement
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
The invention relates to a hydraulic support and a jacking beam for the hydraulic support.The hydraulic support comprises a jacking beam, the jacking beam comprises a front jacking beam and a rear jacking beam, the front jacking beam and/or the rear jacking beam are of segmental structure, every two adjacent segments are fixed through a detachable fixing structure or a folding fixing structure, and each folding fixing structure comprises a first hinging pin passing through the two adjacent segments in the left-right direction and a detachable fixer which cooperates with the first hinging pin to fix the two adjacent segments.During transportation of the jacking beam, in case of the detachable fixing structures, two adjacent segments are detached and separated for transportation, and at this time transportation length is small and tripping in facilitated; in case of the folding fixing structures, the detachable fixers are removed, the two adjacent segments are relatively folded, the overall transport size of the jacking beam is small, and thus tripping in the jacking beam is facilitated, broadening a roadway is not required and cost is saved.
Description
Technical field
The invention belongs to the support apparatus of underground coal mine coal-face, be specifically related to a kind of hydraulic support and hydraulic support back timber.
Background technology
Hydraulic support is that the equipment that face roof is supported shielding in progress of coal mining, the structural design of hydraulic support and structure optimization are very big on mechanical coal mining impact. In hydraulic support, back timber is extremely important to the enabling capabilities of roof weighting, and back timber must is fulfilled for two requirement of aspect such as support strength and bulk. Underground coal mine at complicated condition, it is necessary to the length of hydraulic support is different, it is sometimes desirable to longer hydraulic support, to provide supporting, at this moment needs to lengthen back timber. But, the entire length of back timber lengthen after in underground transportation process, due to reasons such as underworkings are narrower, underground transportation process is relatively difficult, if widening tunnel, then needs cost to put into excessive.
Such as, application publication number is CN102828762A, and name is called that the Chinese patent of a kind of backstop cash beam with side guard plate suspension rocking beam type waste filling hydraulic support discloses a kind of hydraulic support. Hydraulic support includes back timber, and back timber includes front back timber and rear back timber, front back timber and rear back timber and is monolithic construction, and when needs lengthen back timber, the front back timber of lengthening or rear back timber will result in back timber in underground transportation difficulty.
Summary of the invention
It is an object of the invention to provide a kind of hydraulic support to solve the back timber technical problem in underground transportation difficulty. The present invention also aims to provide a kind of hydraulic support back timber.
The technical scheme of hydraulic support back timber in the present invention: a kind of hydraulic support back timber, including front back timber and rear back timber, it is characterized in that: front back timber and/or rear back timber adopt segmental structure, being fixed by removable fixed structure or folding fixed structure between adjacent two segmentations, folding fixed structure includes the first hinging pin shaft being threaded onto in adjacent two segmentations in left-right direction and the removable fixture realizing fixing described adjacent two segmentations with the first hinging pin shaft by coordinating.
Removable fixture is the second hinging pin shaft that axis extends in left-right direction.
Removable fixed structure includes spaced first detachable connecting pin and the second detachable connecting pin.
Described rear back timber adopts segmental structure, position segmentation the most rearward is provided with for supporting, with rear column, the support fit structure coordinated.
The technical scheme of hydraulic support in the present invention: a kind of hydraulic support, including back timber, back timber includes front back timber and rear back timber, it is characterized in that: front back timber and/or rear back timber adopt segmental structure, being fixed by removable fixed structure or folding fixed structure between adjacent two segmentations, folding fixed structure includes the first hinging pin shaft being threaded onto in adjacent two segmentations in left-right direction and the removable fixture realizing fixing described adjacent two segmentations with the first hinging pin shaft by coordinating.
Removable fixture is the second hinging pin shaft that axis extends in left-right direction.
Removable fixed structure includes spaced first detachable connecting pin and the second detachable connecting pin.
Hydraulic support also includes base, and base is provided with rear column, and described rear back timber adopts segmental structure, position segmentation the most rearward is provided with and supports, with rear column, the support fit structure coordinated.
The rear end of base is provided with gear cash assembly, gear cash assembly include fixed dam and be relatively fixed baffle plate can upper-lower position adjust sideboard, gear cash assembly also includes the height-regulating mechanism for adjusting sideboard height in the vertical direction, fixed dam and sideboard have the gear cash face backwards for stopping spoil, fixed dam includes fixed dam base plate and the fixed dam side plate turned down forward, sideboard includes sideboard base plate and the sideboard side plate turned down forward, the rear surface of fixed dam base plate and the rear surface of sideboard base plate constitute gear cash face, fixed dam and sideboard mutual sheathing, fixed dam base plate and fixed dam side plate, sideboard base plate and sideboard side plate respectively constitute the recess U-shape structure getting out of the way described rear column forward.
The rear end of base is fixed in the front end of fixed dam side plate, before the rearward end of described base is positioned at gear cash face.
Usefulness of the present invention: front back timber and/or rear back timber adopt subsection setup, being fixed by removable fixed structure or folding fixed structure between adjacent two segmentations, folding fixed structure includes the first hinging pin shaft being threaded onto in adjacent two segmentations in left-right direction and the removable fixture realizing fixing described adjacent two segmentations with the first hinging pin shaft by coordinating. When back timber transports, when adopting removable fixed structure, after adjacent two segmentations dismounting, separately performed transport, now transportation lengths is little, conveniently goes into the well; When adopting folding fixed structure, pulling down removable fixture, folded against between adjacent two segmentations, the whole Transporting size of back timber is little, facilitates back timber to go into the well, it is not necessary to tunnel is widened, and saves cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of hydraulic support in the present invention;
Fig. 2 is the partial enlarged drawing at A place in Fig. 1;
Fig. 3 is the partial enlarged drawing at B place in Fig. 1;
Fig. 4 be in the present invention in the embodiment of hydraulic support after the structural representation of back timber;
Fig. 5 is assembling schematic diagram (when lifting jack does not extend out) between fixed dam, sideboard and lifting jack in the embodiment of hydraulic support in the present invention;
Fig. 6 is the front view (when lifting jack does not extend out) keeping off cash assembly in the present invention in the embodiment of hydraulic support;
Fig. 7 is the structural representation (when lifting jack stretches out) keeping off cash assembly in the present invention in the embodiment of hydraulic support.
In figure: 1, base; 2, front back timber; 3, front beam section; 4, front column; 5, rear column; 6, upper connecting rod; 7, front rod; 8, back link; 9, balance jack; 10, one-level wall supporting; 11, one-level wall supporting jack; 12, secondary protecting side; 13, secondary protecting side jack; 14, fixed dam; 15, sideboard; 16, lifting jack; 17, fixed dam jointed shaft; 18, supporting plate; 19, conveyer; 20, conveyer backplate; 21, connecting rod; 22, installing hole; 23, conveyer backplate hinging pin shaft; 24, pedal; 25, rear beam section; 26, the first detachable connecting pin; 27, the second detachable connecting pin; 28, wall suitable for reading; 29, end opening wall; 30, gear cash face; 31, coal mining conveyor; 32, hydraulic system; 33, coal-winning machine; 34, hole for hoist; 35, side guard plate; 36, upper hinging pin shaft; 37, lower hinging pin shaft.
Detailed description of the invention
In the present invention, the embodiment of hydraulic support is as shown in figs. 1-7. Hydraulic support in the present embodiment is the backfill hydraulic support with backfill function, hydraulic support includes hydraulic system 32, hydraulic support also includes back timber and base 1, back timber includes front back timber 2 and the rear back timber that split is arranged, front back timber 2 and rear back timber are hinged, rear back timber adopts segmental structure, rear back timber is made up of two segmentations, two segmentations respectively front beam section 3 and rear beam section 25, being fixed by removable fixed structure between front beam section 3 and rear beam section 25, removable fixed structure includes spaced first detachable connecting pin 26 and the second detachable connecting pin 27. Removable fixed structure in the present embodiment has two kinds of usings method when transport, and the first is to be pulled down by the second detachable connecting pin 27, after the relatively front beam section 3 of rear beam section 25 is folding, front beam section 3 and rear beam section 25 entirety is transported; The second is the first detachable connecting pin 26 and the second detachable connecting pin 27 all to be pulled down, and front beam section 3 and rear beam section 25 are separately transported. The left and right sides of front beam section 3 and rear beam section 25 is equipped with side guard plate. Each side guard plate is Split type structure, it is to avoid rear back timber adopts all-in-one-piece side guard plate, and the length longer positioning precision caused is inadequate, not card phenomenon occurs, and each side guard plate can separately control, and the telescopicing performance making side guard plate is better. Rear back timber adopts segmental structure, contributes to increasing the length of back timber, and the space making hydraulic support is sufficient, it is simple to configure various pipeline parts and mechanical coal mining equipment. And, the backfill spoil space of hydraulic support is bigger, it is possible to process more spoil rubbish.
The rear end of back timber is provided with the supporting plate 18 mounted for conveyer 19, and supporting plate 18 and back timber are slidably matched in the longitudinal direction. The rear end of back timber is hinged with the conveyer backplate 20 for protecting conveyer 19 that hinge axes extends in left-right direction, and hydraulic support also includes for regulating the conveyer backplate 20 angle adjusting mechanism towards goaf angle. Angle adjusting mechanism be at least two length different and independent releasable connection connecting rod 21 between back timber and conveyer backplate 20, can regulating the conveyer backplate 20 angle towards goaf by changing the connecting rod 21 of different length, angle adjusting mechanism is simple and convenient. Conveyer backplate 20 is when vertical direction, and conveyer backplate 20 is better to the protective effect of conveyer 19; When conveyer backplate 20 is in the position turned in opposed vertical direction, conveyer backplate 20 also can effectively prevent goaf top plate from falling the injury of service worker caved in maintenance conveyer. Conveyer backplate 20 is the rear end being articulated with back timber by conveyer backplate hinging pin shaft 27, back timber is provided with hole for hoist 34, the aperture of hole for hoist 34 is more than the installing hole 22 installed for conveyer backplate hinging pin shaft 27, hole for hoist 34 is connected with installing hole 22, and hole for hoist 34 uses when lifting back timber.
The front column 4 for supporting front back timber 2 it is arranged at intervals with along the longitudinal direction and for the rear column 5 of back timber after supporting between back timber and base 1, the quantity of front column 4 has two, two front column 4 intervals in left-right direction are arranged, the quantity of rear column 5 has two, two rear column 5 intervals in left-right direction are arranged, the upper end of front column 4 supports with front back timber 2 phase and coordinates, the lower end of front column 4 is connected with base 1, rear beam section 25 is provided with for supporting, with rear column 5, the support fit structure coordinated, the upper end of rear column 5 supports with rear beam section 25 phase and coordinates, the lower end of rear column 5 is connected with base 1. hydraulic support also includes connecting rod 6, front rod 7, back link 8 and balance jack 9, the upper end thereof of upper connecting rod 6 is on front back timber 2, the lower end of front rod 7 and back link 8 is all articulated with on base 1, the upper end of front rod 7 and back link 8 is all articulated with on connecting rod 6, upper connecting rod 6, front rod 7, back link 8 and base 1 constitute quadric chain, one end of balance jack 9 is articulated with on front back timber 2, and the other end of balance jack 9 is articulated with on connecting rod 6. the front end of front back timber 2 is provided with one-level wall supporting 10 and one-level wall supporting jack 11, the rear end of one-level wall supporting 10 is articulated with front back timber 2 front end, the forward and backward two ends of one-level wall supporting jack 11 are hinged with one-level wall supporting 10 and front back timber 2 respectively, the front end of one-level wall supporting 10 is provided with secondary protecting side 12 and secondary protecting side jack 13, the rear end of secondary protecting side 12 is articulated with the front end of one-level wall supporting 10, and the forward and backward two ends of secondary protecting side jack 13 are hinged with secondary protecting side 12 and one-level wall supporting 10 respectively. base 1 is provided with pedal 24.
The rear end of base 1 is provided with gear cash assembly, gear cash assembly includes fixed dam 14, gear cash assembly also include being relatively fixed baffle plate 14 can upper-lower position adjustment sideboard 15 and for adjusting the height-regulating mechanism of sideboard 15 height in the vertical direction, fixed dam 14 and sideboard 15 have the gear cash face 30 backwards for blocking spoil. Fixed dam 14 includes fixed dam base plate and the fixed dam side plate turned down forward, sideboard 15 includes sideboard base plate and the sideboard side plate turned down forward, the rear surface of fixed dam base plate and the rear surface of sideboard base plate constitute gear cash face 30, fixed dam 14 and sideboard 15 mutual sheathing, fixed dam base plate and fixed dam side plate, sideboard base plate and sideboard side plate respectively constitute the recess U-shape structure for getting out of the way rear column 5 forward. The rear end of base 1 is fixed in the front end of fixed dam side plate. Fixed dam 14 and sideboard 15 are recess U-shape structure forward, and the intensity of fixed dam 14 and sideboard 15 is high, and fixed dam side plate is also convenient for the connection between fixed dam 14 and base 1. Fixed dam 14 is fixed on the rear end of base 1 by two fixed dam jointed shafts 17. The rearward end of base 1 is positioned at the front side in gear cash face 30, and this makes the rearward end of base 1 not easily be pounded by spoil and be destroyed. Rear column 5 is positioned at the U-shaped recess of fixed dam 14 and sideboard 15, so contributes to saving space. Fixed dam 14 is slidably matched with sideboard 15 guiding, described height-regulating mechanism includes the actuator for driving sideboard to move up and down, actuator is lifting jack 16, lifting jack 16 has two, two lifting jack 16 intervals in left-right direction are arranged, the upper end of lifting jack 16 is hinged with sideboard 15 by upper hinging pin shaft 36, and the lower end of lifting jack 16 is hinged with fixed dam 14 by lower hinging pin shaft 37. When backfilling spoil, lifting jack 16 protrudes upward to drive sideboard 15 to move upward, and the stop of spoil is avoided spoil burying hydraulic support by gear cash face 30; Can regulate, according to practical situation, the height that lifting jack 16 protrudes upward simultaneously, the namely lifting height scalable of sideboard 15, is suitable for the different packed heights of backfill spoil, compact conformation, being effectively increased the accumulating amount of spoil, the subject range of hydraulic support is broader. Gear cash assembly falls to caving in the destruction to hydraulic support additionally, can also protect goaf top plate.
In Fig. 1, label 33 is coal-winning machine, and label 31 is coal mining conveyor, and label 19 is conveyer, and coal-winning machine 33, coal mining conveyor 31 and conveyer 19 etc. are equipment matching used with hydraulic support, are not belonging to the ingredient of hydraulic support.
In the present invention in other embodiments of hydraulic support, fixed dam 14 is interval with multiple first installing hole along the vertical direction, sideboard 15 is provided with second installing hole corresponding with the first installing hole, connecting bolt is arranged in the first installing hole and the second installing hole, adjusts the sideboard 15 height at above-below direction by adjusting the first installing hole matched with the second installing hole. Connecting bolt can also be replaced by bearing pin.
In the present invention in other embodiments of hydraulic support, actuator is alternatively linear electric motors, electric pushrod, it is also possible to by motor and drive mechanism with the use of realizing moving up and down of sideboard 15.
In the present invention in other embodiments of hydraulic support, front back timber and rear back timber are alternatively integral structure.
In the present invention in other embodiments of hydraulic support, removable fixed structure is alternatively bolt, front beam section 2 is provided with front connecting portion, and rear beam section 25 is provided with rear connecting portion, is fixed by the bolt front beam section 3 of realization and rear beam section 25 being arranged in front connecting portion and rear connecting portion.
In the present invention in other embodiments of hydraulic support, being fixed by folding fixed structure between front beam section 3 and rear beam section 25, folding fixed structure includes the first hinging pin shaft being threaded onto in front beam section 3 and rear beam section 25 in left-right direction and the removable fixture realizing fixing front beam section 3 and rear beam section 25 with the first hinging pin shaft by coordinating. Removable fixture can be the second hinging pin shaft being threaded onto front beam section 3 and rear beam section 25. Removable fixture is alternatively the first connecting bolt, and front beam section 3 and rear beam section 25 are respectively equipped with the first connecting portion and the second connecting portion, realizes fixing between front beam section 3 and rear beam section 25 by being arranged in the first connecting bolt of the first connecting portion and the second connecting portion.
In the present invention in other embodiments of hydraulic support, rear back timber adopts segmental structure, rear back timber is by two sections of composition described above, being fixed by removable fixed structure or folding fixed structure between adjacent two segmentations, folding fixed structure includes the first hinging pin shaft being threaded onto in adjacent two segmentations in left-right direction and the removable fixture realizing fixing described adjacent two segmentations with the first hinging pin shaft by coordinating.
In the present invention in other embodiments of hydraulic support, front back timber adopts segmental structure, being fixed by removable fixed structure or folding fixed structure between adjacent two segmentations, folding fixed structure includes the first hinging pin shaft being threaded onto in adjacent two segmentations in left-right direction and the removable fixture realizing fixing described adjacent two segmentations with the first hinging pin shaft by coordinating.
In the present invention in other embodiments of hydraulic support, the quantity of front column and rear column is not limited to two, sets according to practical situation.
In the present invention in other embodiments of hydraulic support, angle adjusting mechanism is alternatively the backplate actuator for driving conveyer backplate to rotate, backplate actuator is jack, jack one end and the back timber other end that is hinged is hinged with conveyer backplate, just can be automatically adjusted the conveyer backplate angle towards goaf by jack. Backplate actuator is alternatively the motor driving conveyer backplate to rotate.
In the present invention, in the embodiment of hydraulic support back timber, the structure of hydraulic support back timber is identical with the structure of back timber in the embodiment of hydraulic support, and hydraulic support back timber also is used as the back timber of Normal hydraulic support or transitional hydraulic bracket.
Claims (10)
1. a hydraulic support back timber, including front back timber and rear back timber, it is characterized in that: front back timber and/or rear back timber adopt segmental structure, being fixed by removable fixed structure or folding fixed structure between adjacent two segmentations, folding fixed structure includes the first hinging pin shaft being threaded onto in adjacent two segmentations in left-right direction and the removable fixture realizing fixing described adjacent two segmentations with the first hinging pin shaft by coordinating.
2. hydraulic support back timber according to claim 1, it is characterised in that: removable fixture is the second hinging pin shaft that axis extends in left-right direction.
3. hydraulic support back timber according to claim 1, it is characterised in that: removable fixed structure includes spaced first detachable connecting pin and the second detachable connecting pin.
4. the hydraulic support back timber according to claim 1 ~ 3 any one, it is characterised in that: described rear back timber adopts segmental structure, position segmentation the most rearward is provided with for supporting, with rear column, the support fit structure coordinated.
5. a hydraulic support, including back timber, back timber includes front back timber and rear back timber, it is characterized in that: front back timber and/or rear back timber adopt segmental structure, being fixed by removable fixed structure or folding fixed structure between adjacent two segmentations, folding fixed structure includes the first hinging pin shaft being threaded onto in adjacent two segmentations in left-right direction and the removable fixture realizing fixing described adjacent two segmentations with the first hinging pin shaft by coordinating.
6. hydraulic support according to claim 5, it is characterised in that: removable fixture is the second hinging pin shaft that axis extends in left-right direction.
7. hydraulic support according to claim 5, it is characterised in that: removable fixed structure includes spaced first detachable connecting pin and the second detachable connecting pin.
8. the hydraulic support according to any one in claim 5-7, it is characterized in that: hydraulic support also includes base, being provided with rear column on base, described rear back timber adopts segmental structure, position segmentation the most rearward is provided with and supports, with rear column, the support fit structure coordinated.
9. hydraulic support according to claim 8, it is characterized in that: the rear end of base is provided with gear cash assembly, gear cash assembly include fixed dam and be relatively fixed baffle plate can upper-lower position adjust sideboard, gear cash assembly also includes the height-regulating mechanism for adjusting sideboard height in the vertical direction, fixed dam and sideboard have the gear cash face backwards for stopping spoil, fixed dam includes fixed dam base plate and the fixed dam side plate turned down forward, sideboard includes sideboard base plate and the sideboard side plate turned down forward, the rear surface of fixed dam base plate and the rear surface of sideboard base plate constitute gear cash face, fixed dam and sideboard mutual sheathing, fixed dam base plate and fixed dam side plate, sideboard base plate and sideboard side plate respectively constitute the recess U-shape structure getting out of the way described rear column forward.
10. hydraulic support according to claim 9, it is characterised in that: the rear end of base is fixed in the front end of fixed dam side plate, before the rearward end of described base is positioned at gear cash face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610103447.0A CN105626117A (en) | 2016-02-25 | 2016-02-25 | Hydraulic support and jacking beam for hydraulic support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610103447.0A CN105626117A (en) | 2016-02-25 | 2016-02-25 | Hydraulic support and jacking beam for hydraulic support |
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| Publication Number | Publication Date |
|---|---|
| CN105626117A true CN105626117A (en) | 2016-06-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610103447.0A Pending CN105626117A (en) | 2016-02-25 | 2016-02-25 | Hydraulic support and jacking beam for hydraulic support |
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| Country | Link |
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| CN (1) | CN105626117A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109653783A (en) * | 2018-12-28 | 2019-04-19 | 刘志伟 | A kind of mine hole arrangement holding device |
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|---|---|---|---|---|
| US3548601A (en) * | 1967-04-21 | 1970-12-22 | Dobson Ltd W E & F | Mine roof supports |
| FR2468724A1 (en) * | 1979-10-30 | 1981-05-08 | Thyssen Industrie | Height adjustable mine pneumatic backfilling wall - has striding support frame hung sections swivelling about hinges, with offset cylinders |
| CN2226642Y (en) * | 1994-11-01 | 1996-05-08 | 西北煤矿机械二厂 | Net type hydraulic step-by-step support |
| CN2228131Y (en) * | 1995-04-25 | 1996-05-29 | 西北煤矿机械二厂 | Connecting component of segmented chock cap for coal face |
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| CN202325590U (en) * | 2011-11-22 | 2012-07-11 | 徐州中矿大贝克福尔科技有限公司 | Filling hydraulic support frame for backfill of coal mine |
| CN202628177U (en) * | 2011-12-24 | 2012-12-26 | 中国煤炭科工集团太原研究院 | Gangue-coal ash two-column shield-type hydraulic filling support |
| CN203655331U (en) * | 2013-12-24 | 2014-06-18 | 徐州中矿大贝克福尔科技有限公司 | Hydraulic support for coal mine paste mining with filling |
| CN203905987U (en) * | 2014-03-06 | 2014-10-29 | 卡特彼勒（郑州）有限公司 | Backfill hydraulic bracket |
| CN105065049A (en) * | 2015-08-26 | 2015-11-18 | 冀中能源股份有限公司邢东矿 | Hydraulic support for high-water cut and fill mining |
| CN205400783U (en) * | 2016-02-25 | 2016-07-27 | 郑州四维矿业机械有限责任公司 | Hydraulic support and for hydraulic support back timber |
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2016
- 2016-02-25 CN CN201610103447.0A patent/CN105626117A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3548601A (en) * | 1967-04-21 | 1970-12-22 | Dobson Ltd W E & F | Mine roof supports |
| FR2468724A1 (en) * | 1979-10-30 | 1981-05-08 | Thyssen Industrie | Height adjustable mine pneumatic backfilling wall - has striding support frame hung sections swivelling about hinges, with offset cylinders |
| CN2226642Y (en) * | 1994-11-01 | 1996-05-08 | 西北煤矿机械二厂 | Net type hydraulic step-by-step support |
| CN2228131Y (en) * | 1995-04-25 | 1996-05-29 | 西北煤矿机械二厂 | Connecting component of segmented chock cap for coal face |
| CN1194329A (en) * | 1997-03-24 | 1998-09-30 | 萨尔州工业与矿山技术股份有限公司 | Shield support for thick coal layer |
| CN202325590U (en) * | 2011-11-22 | 2012-07-11 | 徐州中矿大贝克福尔科技有限公司 | Filling hydraulic support frame for backfill of coal mine |
| CN202628177U (en) * | 2011-12-24 | 2012-12-26 | 中国煤炭科工集团太原研究院 | Gangue-coal ash two-column shield-type hydraulic filling support |
| CN203655331U (en) * | 2013-12-24 | 2014-06-18 | 徐州中矿大贝克福尔科技有限公司 | Hydraulic support for coal mine paste mining with filling |
| CN203905987U (en) * | 2014-03-06 | 2014-10-29 | 卡特彼勒（郑州）有限公司 | Backfill hydraulic bracket |
| CN105065049A (en) * | 2015-08-26 | 2015-11-18 | 冀中能源股份有限公司邢东矿 | Hydraulic support for high-water cut and fill mining |
| CN205400783U (en) * | 2016-02-25 | 2016-07-27 | 郑州四维矿业机械有限责任公司 | Hydraulic support and for hydraulic support back timber |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109653783A (en) * | 2018-12-28 | 2019-04-19 | 刘志伟 | A kind of mine hole arrangement holding device |
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Application publication date: 20160601 |
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