CN203603947U - Double-upright top coal caving hydraulic support - Google Patents
Double-upright top coal caving hydraulic support Download PDFInfo
- Publication number
- CN203603947U CN203603947U CN201320785389.6U CN201320785389U CN203603947U CN 203603947 U CN203603947 U CN 203603947U CN 201320785389 U CN201320785389 U CN 201320785389U CN 203603947 U CN203603947 U CN 203603947U
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- Prior art keywords
- caving
- top beam
- hinged
- double
- jack
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- 239000003245 coal Substances 0.000 title claims abstract description 37
- 244000062793 Sorghum vulgare Species 0.000 claims description 15
- 235000019713 millet Nutrition 0.000 claims description 15
- 239000000725 suspension Substances 0.000 claims description 7
- 238000010410 dusting Methods 0.000 claims description 3
- 238000005065 mining Methods 0.000 abstract description 7
- 239000007788 liquid Substances 0.000 abstract 2
- 238000007599 discharging Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 230000037433 frameshift Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The utility model discloses a double-upright top coal caving hydraulic support. The double-upright top coal caving hydraulic support comprises two double-telescopic uprights provided with large-flow liquid feed valves, a base hinged to the bottoms of the uprights, a whole top beam hinged to the tops of the uprights, a caving shield hinged to the rear end of the whole top beam and a coal discharging mechanism arranged on the rear portion of the caving shield, wherein the large-flow liquid feed valves are arranged, so that the support moving time of the hydraulic support is shortened to 8 seconds; the rear portion of the base and the rear portion of the caving shield are connected through a front connecting rod and a rear connecting rod; a pushing mechanism and a bottom lifting mechanism are arranged in the intermediate rail portion of the base; a supporting device is arranged on the front portion of the whole top beam; the center distance of the support is 2.05 m, the cylinder diameter of each double-telescopic upright is 500 mm, and the working resistance can be over 18000 kN; a balance jack is hinged between the whole top beam and the caving shield and the cylinder diameter of the balance jack is 280 mm. The double-upright top coal caving hydraulic support has the advantages that the full-seam mining purpose and the top coal caving purpose are achieved in a thick coal seam under the condition of high working resistance.
Description
Technical field
The utility model relates to comprehensive mechanized coal mining face caving roof coal hydraulic support, especially relates to two post caving roof coal hydraulic supports.
Background technology
China is one of country of high seam reserves maximum in the world, and the coal seam of coal seam thickness more than 3.5m accounts for 43% of coal in China reserves.But home and abroad is mainly to use large mining height hydraulic support full-seam mining to the exploitation of high seam at present, or adopts caving roof coal hydraulic support to carry out top coal caving.The high-yield and high-efficiency exploitation that is greater than 7 meters for coal seam thickness, common four post caving roof coal hydraulic supports can not meet the needs that coal mining, frame-shift time are less than 10 seconds.
Summary of the invention
The utility model object is to provide a kind of two post caving roof coal hydraulic supports, realizes full-seam mining (machine is adopted) and Sub-Level Caving two purposes of high seam, large working resistance.
For achieving the above object, the utility model is taked following technical proposals:
Two post caving roof coal hydraulic supports described in the utility model, comprise and are provided with two double-telescopic upright posts of large flow supplying valve, the base that is hinged on its bottom and the integral top beam at its top, and are articulated with the caving shield of described integral top beam rear end; The configuration of large flow supplying valve makes the frame-shift time of hydraulic support foreshorten to 8 seconds; Be arranged on the Fang Mei mechanism at described caving shield rear portion; Described base rear portion is connected by the forward and backward stalk that connects with shielding fine strain of millet rear portion; The middle-grade place of base is provided with thrust gear, bottom raising mechanism; Integral top beam front portion is provided with suspension device; Described carriage center is apart from being 2.05 meters, and the cylinder diameter of described two double-telescopic upright posts is 500mm, more than working resistance can reach 18000kN; Between integral top beam and shielding fine strain of millet, be hinged with the balance jack that cylinder diameter is 280mm.
It is 1:1.94～1:2 that needling on described integral top beam is positioned at apart from the ratio of distances constant of integral top beam front and back ends.
The anterior suspension device of described back timber comprises: supporting plate, extensible canopy, face guard, and extensible canopy is five box-structures, the middle cavity that is positioned at described five box-structures is provided with the supporting plate moving with described extensible canopy; Extensible canopy is plugged in integral top beam head end box chamber, and extensible canopy rear end is connected with the extensible canopy jack that it is moved forward and backward; Extensible canopy front end and described face guard are hinged; Face guard is the accordion structure being made up of four-bar mechanism and wall supporting jack, and this four-bar mechanism one end connects the face guard other end and connects supporting plate.
For realizing the coal demand of putting of high seam, described Fang Mei mechanism comprises the tail boom that is hinged on caving shield rear end, is arranged on the plug in jack of pulling in tail boom, and is pulled jack and driven flexible plate by described inserting; Between described shielding fine strain of millet and tail boom, be hinged with and make tail fine strain of millet swing the tail fine strain of millet jack of putting coal, tail boom amplitude of fluctuation can reach 60 °, and coal discharge outlet is increased, and anti-cash is effective.
In described caving shield, tail boom bottom, integral top beam front end be respectively arranged with atomizing de-dusting apparatus.
The utility model advantage is to realize full-seam mining (machine is adopted) and Sub-Level Caving two purposes of high seam, large working resistance.Caving shield rear portion hinged Fang Mei mechanism, can carry out Sub-Level Caving operation, adapts to high-yield and high-efficiency top coal caving.
Accompanying drawing explanation
Fig. 1 is main TV structure schematic diagram of the present utility model.
Fig. 2 is left TV structure schematic diagram of the present utility model.
Fig. 3 is the perspective view of the utility model back timber.
Fig. 4 is the structural representation of the utility model tail boom.
The specific embodiment
As Figure 1-4, two post caving roof coal hydraulic supports described in the utility model, comprise and be provided with two double-telescopic upright posts 10 of large flow supplying valve, the base 3 that is hinged on its bottom and the integral top beam 1 at its top, and be articulated with the caving shield 2 of described integral top beam 1 rear end; Be arranged on the Fang Mei mechanism 4 at described caving shield 2 rear portions; Described base 3 rear portions are connected by the forward and backward stalk 5,6 that connects with shielding fine strain of millet 2 rear portions; The middle-grade place of base 3 is provided with thrust gear 7, bottom raising mechanism 8; Integral top beam 1 front portion is provided with suspension device 9; Described carriage center is apart from being 2.05 meters, and the cylinder diameter of described two double-telescopic upright posts 10 is 500mm; Between integral top beam 1 and shielding fine strain of millet 2, be hinged with the balance jack 11 that cylinder diameter is 280mm, guaranteed the control top ability of bracket stable.Being arranged on that needling on integral top beam 1 is positioned at apart from the ratio of distances constant of integral top beam 1 front and back ends is that 1:1.94～1:2 makes support integral top beam 1 stressed evenly.The anterior suspension device 9 of described back timber comprises: supporting plate 12, extensible canopy 13, face guard 14, and extensible canopy 13 is five box-structures, the middle cavity that is positioned at described five box-structures is provided with the supporting plate 12 moving with described extensible canopy 13; Extensible canopy 13 is plugged in integral top beam 1 head end box chamber, and extensible canopy 13 rear ends are connected with the extensible canopy jack 19 that it is moved forward and backward; Extensible canopy 13 front ends and described face guard 14 are hinged; The accordion structure of face guard 14 for being formed by four-bar mechanism 20 and wall supporting jack 21, these four-bar mechanism 20 one end connect face guard 14 other ends and connect supporting plate 12, and after coal-winning machine coal cutting, extensible canopy jack 19 stretches out, promote whole suspension device reach 9, realize the immediate support to top board.Described Fang Mei mechanism comprises the tail boom 15 that is hinged on caving shield 2 rear ends, is arranged on the plug in jack 16 of pulling in described tail boom 15, and is pulled jack 16 and driven flexible plate 17 by described inserting; Between described shielding fine strain of millet 2 and tail boom 15, be hinged with the tail fine strain of millet jack 18 that tail fine strain of millet 15 is swung, for loosening top coal, and maintain a coal breakage space; The slotting plate 17 of pulling jack 16 and being stretched by its push-and-pull in tail boom 15, for putting coal and broken coarse coal, guarantees to have continuous coal discharge outlet.In caving shield 2, tail boom 15 bottoms, integral top beam 1 front end are respectively arranged with atomizing de-dusting apparatus.It is overall box structure that support adopts down pull-type long push rod, and front portion is individual layer steel plate structure, and rear portion is solid forging push rod tail, has improved the stressed and compliance of push rod.
Claims (5)
1. a post caving roof coal hydraulic support, comprise and be provided with two double-telescopic upright posts (10) of large flow supplying valve, the base (3) that is hinged on its bottom and the integral top beam (1) at its top, and be articulated with the caving shield (2) of described integral top beam (1) rear end; Be arranged on the Fang Mei mechanism (4) at described caving shield (2) rear portion; Described base (3) rear portion is connected by the forward and backward stalk (5,6) that connects with shielding fine strain of millet (2) rear portion; The middle-grade place of base (3) is provided with thrust gear (7), bottom raising mechanism (8); Integral top beam (1) front portion is provided with suspension device (9); It is characterized in that: described carriage center is apart from being 2.05 meters, and the cylinder diameter of described two double-telescopic upright posts (10) is 500mm; Between integral top beam (1) and shielding fine strain of millet (2), be hinged with the balance jack that cylinder diameter is 280mm (11).
2. two post caving roof coal hydraulic supports according to claim 1, is characterized in that: it is 1:1.94～1:2 that the needling on described integral top beam (1) is positioned at apart from the ratio of distances constant of integral top beam (1) front and back ends.
3. two post caving roof coal hydraulic supports according to claim 1, it is characterized in that: the anterior suspension device of described back timber (9) comprising: supporting plate (12), extensible canopy (13), face guard (14), extensible canopy (13) is five box-structures, and the middle cavity that is positioned at described five box-structures is provided with the supporting plate (12) mobile with described extensible canopy (13); Extensible canopy (13) is plugged in integral top beam (1) head end box chamber, and extensible canopy (13) rear end is connected with the extensible canopy jack (19) that it is moved forward and backward; Extensible canopy (13) front end and described face guard (14) are hinged; Face guard (14) is the accordion structure being made up of four-bar mechanism (20) and wall supporting jack (21), and this four-bar mechanism (20) one end connects face guard (14) other end and connects supporting plate (12).
4. two post caving roof coal hydraulic supports according to claim 1, it is characterized in that: described Fang Mei mechanism comprises the tail boom (15) that is hinged on caving shield (2) rear end, be arranged on the plug in jack (16) of pulling in described tail boom (15), and pull jack (16) and drive flexible plate (17) by described inserting; Between described shielding fine strain of millet (2) and tail boom (15), be hinged with the tail fine strain of millet jack (18) that tail fine strain of millet (15) is swung.
5. two post caving roof coal hydraulic supports according to claim 1, is characterized in that: in described caving shield (2), tail boom (15) bottom, integral top beam (1) front end be respectively arranged with atomizing de-dusting apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320785389.6U CN203603947U (en) | 2013-12-04 | 2013-12-04 | Double-upright top coal caving hydraulic support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320785389.6U CN203603947U (en) | 2013-12-04 | 2013-12-04 | Double-upright top coal caving hydraulic support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203603947U true CN203603947U (en) | 2014-05-21 |
Family
ID=50716624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320785389.6U Expired - Lifetime CN203603947U (en) | 2013-12-04 | 2013-12-04 | Double-upright top coal caving hydraulic support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203603947U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105178999A (en) * | 2015-09-30 | 2015-12-23 | 山东能源重装集团鲁南装备制造有限公司 | Hydraulic support |
| CN109695465A (en) * | 2018-12-05 | 2019-04-30 | 山东塔高矿业机械装备制造有限公司 | Hydraulic device for sublevel caving hydrau lic support |
| CN109727522A (en) * | 2019-03-18 | 2019-05-07 | 中国矿业大学(北京) | Coal experiment porch and test method are put in a kind of large scale intelligence |
-
2013
- 2013-12-04 CN CN201320785389.6U patent/CN203603947U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105178999A (en) * | 2015-09-30 | 2015-12-23 | 山东能源重装集团鲁南装备制造有限公司 | Hydraulic support |
| CN109695465A (en) * | 2018-12-05 | 2019-04-30 | 山东塔高矿业机械装备制造有限公司 | Hydraulic device for sublevel caving hydrau lic support |
| CN109727522A (en) * | 2019-03-18 | 2019-05-07 | 中国矿业大学(北京) | Coal experiment porch and test method are put in a kind of large scale intelligence |
| CN109727522B (en) * | 2019-03-18 | 2022-08-30 | 中国矿业大学(北京) | Large-size intelligent coal caving experiment platform and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140521 |