CN102465707A - High-inclination-angle hydraulic support - Google Patents
High-inclination-angle hydraulic support Download PDFInfo
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- CN102465707A CN102465707A CN2010105422406A CN201010542240A CN102465707A CN 102465707 A CN102465707 A CN 102465707A CN 2010105422406 A CN2010105422406 A CN 2010105422406A CN 201010542240 A CN201010542240 A CN 201010542240A CN 102465707 A CN102465707 A CN 102465707A
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Abstract
The invention relates to a high-inclination-angle hydraulic support which comprises a base and a top beam, wherein the top beam and the base are connected through upright columns; the top beam is provided with a top beam side guard plate; the back part of the top beam is connected with a shield beam through a hinge shaft; the shield beam is provided with a shield beam side guard plate; a balancing jack is arranged between the top beam and the shield beam; the shield beam and the base are respectively hinged with a front connection rod and a back connection rod; the top beam side guard plate is provided with a retractable gangue-blocking device; the retractable gangue-blocking device comprises a gangue-blocking plate, a gangue-blocking insert plate, a gangue-blocking jack and a gangue-blocking insert plate jack; the gangue-blocking plate is hinged on the top beam; both ends of the gangue-blocking jack are respectively hinged with the top beam and the gangue-blocking plate; the gangue-blocking insert plate is inserted in a web plate of the gangue-blocking plate; and both ends of the gangue-blocking insert plate jack are respectively hinged with the gangue-blocking insert plate and gangue-blocking plate. The high-inclination-angle hydraulic support is applicable to high-inclination-angle situations: by arranging perfect roadway guards and tilting and slippage prevention devices, the support can be applied to the support operation in the fully-mechanized coal layer mining at a high inclination angle of 0-60 degrees.
Description
Technical field
The invention belongs to field of mining, relate in particular to a kind of can be at the high inclination-angle hydraulic support that be not more than the safe handling of 60 ° of work planes.
Background technology
The high inclination-angle hydraulic support is inclination or the indispensable support apparatus of high_dipping face.Along with the continuous increase at work plane inclination angle, anti-down, anti-skidding, the barrier propterty of hydraulic support is required more and more stricter, especially at the work plane inclination angle greater than 45 ° of high_dipping faces, hydraulic support anti-down, anti-skidding, barrier propterty is particularly important.Therefore, possessing perfect hydraulic support anti-down, anti-skidding, protector is the problem that this field personnel study always.
Summary of the invention
The object of the invention just is to overcome above-mentioned deficiency a kind of high inclination-angle hydraulic support is provided, and can use safely be not more than on 60 ° the work plane.
The object of the invention can be realized through following technical scheme:
A kind of high inclination-angle hydraulic support comprises base and back timber, and back timber is connected through column with base; Back timber is provided with the back timber side guard board, and the back timber rear portion is connected with caving shield through jointed shaft, and caving shield is provided with the caving shield side guard board; Between back timber and the caving shield balance jack is set; Caving shield and base are hinged with front and rear connecting rods respectively, and the back timber side guard board is provided with telescopic retaining cash device, and scalable shelves cash device is made up of waste rock board, retaining cash plate, retaining cash jack and retaining cash plate jack; Waste rock board is hinged on the back timber; The two ends of retaining cash jack are hinged with back timber and waste rock board respectively, and retaining cash plate is inserted in the waste rock board web, and the two ends of retaining cash plate jack are hinged with shelves cash plate with retaining cash plate respectively.
Above-mentioned high inclination-angle hydraulic support; Described back timber side guard board and caving shield side guard board are mobilizable side guard boards; The back timber side guard board is hinged through the back timber thruster jack in guide rod and the back timber, and the caving shield side guard board is hinged through the caving shield thruster jack in guide rod and the caving shield.
Above-mentioned high inclination-angle hydraulic support, said back timber front end is provided with face guard, and the two ends of face guard jack are hinged with back timber and face guard respectively.
Above-mentioned high inclination-angle hydraulic support, said back timber front end is provided with organic road protector, and machine road protector is made up of protected apron and protection jack, and protected apron is hinged on back timber front end side, and the two ends of protection jack are hinged with back timber and protected apron respectively.
Above-mentioned high inclination-angle hydraulic support, said back timber web is provided with tilting prevention device.
Above-mentioned high inclination-angle hydraulic support; Said tilting prevention device is that tilting prevention device perhaps tiltedly draws tilting prevention device hand in hand; Hand in hand tilting prevention device is made up of the anti-down connecting axle of handing in hand, hand in hand anti-down connector and the anti-down jack of handing in hand; The anti-down connecting axle I of handing in hand is separately positioned on adjacent two back timbers with the anti-down connecting axle II of handing in hand; The anti-down connecting axle I of handing in hand links to each other with the anti-down connector I of handing in hand; The anti-down connecting axle II of handing in hand links to each other with the anti-down connector II of handing in hand, the anti-down connector I of handing in hand and hand in hand and be provided with the anti-down jack of handing in hand between the anti-down connector II, and the two ends of the anti-down jack of handing in hand link to each other with the anti-down connector II of handing in hand with the anti-down connector I of handing in hand respectively; Tiltedly draw tilting prevention device by tiltedly drawing anti-down connecting axle, tiltedly drawing anti-down connector, mining slick and sly chain and tiltedly draw jack to constitute; Tiltedly draw anti-down connecting axle to be fixed on the back timber, tiltedly draw anti-down connecting axle, tiltedly draw anti-down connector I, mining slick and sly chain, tiltedly draw anti-down connector II, tiltedly draw jack and tiltedly draw anti-down connector III to be connected successively, tiltedly draw another hydraulic pressure base of the other end and work plane of anti-down connector III to link to each other.
Above-mentioned high inclination-angle hydraulic support; At the middle-grade push unit that is provided with of base, a side is provided with the accent rack device, connects shoe or tilting prevention device through bearing pin on the preceding gap bridge; Preceding gap bridge front portion is provided with the sidewalk spacer assembly and regulates push rod device; The front portion, side also can connect shoe through bearing pin, and push unit is anterior to be connected with drag conveyor, and the climbing handrail is set on the double-telescopic upright post.
Above-mentioned high inclination-angle hydraulic support, said accent rack device are set a roof beam in place by accent and are transferred the frame jack, transfer frame jack one end to be fixed on the base, and the other end is set a roof beam in place with accent and is connected.
Above-mentioned high inclination-angle hydraulic support; Described shoe is made up of base shoe, conveyer shoe and anchor device; The base shoe is made up of anti-skidding connector of base and the anti-skidding jack of base; Anti-skidding connector I of base and the anti-skidding connector II of base are hinged on respectively on the adjacent pans, and the anti-skidding connector I of base is connected through the anti-skidding jack of jointed shaft and base two ends with the anti-skidding connector II of base is middle; The conveyer shoe is by the anti-skidding connector of conveyer, the anti-skidding slick and sly chain of conveyer and constitute; The anti-skidding connector I of conveyer is fixed on the drag conveyor; The anti-skidding connector I of conveyer, the anti-skidding slick and sly chain of conveyer, the anti-skidding connector II of conveyer, the anti-skidding jack of conveyer and the anti-skidding connector III of conveyer are connected successively; The other end of the anti-skidding connector III of conveyer links to each other with base; Said anchor device by the slick and sly chain of three groups of hydraulic supports of work plane, anchoring jack, anchor connection head, anchoring, lead chain barrel and lead carrier bar and constitute; The anchoring jack is fixed on first base of file leader through bearing pin, and the slick and sly chain of anchoring is connected with the anchoring jack through the anchor connection head, anchoring slyness chain pass first of fixing file leader with second on lead chain barrel and lead carrier bar and be connected with the 3rd base.
Above-mentioned high inclination-angle hydraulic support; Said adjusting push rod device is to regulate the push rod jack; Regulate the push rod jack and be fixed on the anterior intraperitoneal of base; Said sidewalk spacer assembly is made up of sidewalk spacer assembly jack and division board, and division board is fixed on the base through back shaft, and sidewalk spacer assembly jack is connected between base and division board.
Adopt above technical scheme, the present invention has following advantage: appropriate angle of the present invention is big: be provided with the more perfect protection of machine road, anti-skid device, make support can adapt to 0 °～60 ° large-inclination-angle coal bed combining and adopt supporting.The bilateral activity side guard board: a side is temporarily fixing, a side activity, and the back timber side protected extends to front end, and shielding property is good, adapts to than breaking roof.Protector: there is spacer assembly on timbering machine road and sidewalk, can effectively protect comprehensive mining machinery and sidewalk personal safety.The anti-skid device: the back timber front end is provided with anti-rewinding, base and is provided with shoe hand in hand and transfers push rod device, three one group oblique drawing device, can prevent effectively that support from falling frame, support and conveyer downslide.Device is transferred in the back: double-acting adjusting bracket device is established at two base rear portions, prevents that the support front portion stings frame.The present invention is a kind of two column protected type hydraulic support, and it is anti-down, anti-skidding, protector designs to the high_dipping face coal winning technology, can be not more than 60 ° of work plane safe handlings.
Description of drawings
Fig. 1 is a high inclination-angle hydraulic support sketch map.
Fig. 2 is a machine road protector sketch map.
Fig. 3 is that the A of Fig. 2 is to view.
Fig. 4 is a retaining cash device sketch map.
Fig. 5 is that Fig. 4 B is to view.
Fig. 6 is the tilting prevention device sketch map of handing in hand.
Fig. 7 tiltedly draws the tilting prevention device sketch map.
Fig. 8 transfers the rack device sketch map.
Fig. 9 is a base shoe sketch map.
Figure 10 is a conveyer shoe sketch map.
Figure 11 is the anchor device sketch map.
Figure 12 regulates the push rod device sketch map.
Figure 13 is a sidewalk spacer assembly sketch map.
Figure 14 is that Figure 13 C is to view.
The specific embodiment
Like Fig. 1, Fig. 4 and big bracket hydraulic support shown in Figure 5; Comprise base 15 and back timber 1, back timber 1 is connected through double-telescopic upright post 8 with base 15, and back timber 1 is provided with back timber side guard board 7; Back timber 1 rear portion is connected with caving shield 11 through jointed shaft; Caving shield 11 is provided with caving shield side guard board 12, between back timber 1 and the caving shield 11 balance jack 10 is set, and caving shield 11 and base 15 are hinged with front rod 13, back link 14 respectively; Caving shield 11, base 15, front rod 13 and back link 14 constitute quadric chain, and back timber side guard board 12 is provided with telescopic retaining cash device 6.Constitute by waste rock board 24, retaining cash plate 25, retaining cash jack 27 and retaining cash plate jack 26 like Fig. 4 and scalable shelves cash device shown in Figure 5; Waste rock board 24 is hinged on the back timber 1, and the two ends of retaining cash jack 27 are hinged with back timber 1 and waste rock board 24 respectively, and retaining cash plate 25 is inserted in waste rock board 24 webs; The two ends of retaining cash plate jack 26 are hinged with shelves cash plate 24 with retaining cash plate 25 respectively; Be provided with accent rack device 16 in base 15 middle-grade push unit 21, one sides that are provided with, connect shoe 18 or tilting prevention device through bearing pin on the preceding gap bridge; Before the gap bridge front portion sidewalk is set isolates and to adorn 19 and put and regulate push rod device 20; The front portion, side also can connect shoe through bearing pin, and push unit is anterior to be connected with drag conveyor, and climbing handrail 17 is set on the double-telescopic upright post 8.
High inclination-angle hydraulic support as shown in Figure 1; Described back timber side guard board 7 is mobilizable side guard boards with caving shield side guard board 12; The back timber side guard board is hinged through the back timber thruster jack 9 in guide rod and the back timber; By the expansion and the contraction of back timber thruster jack 9 control back timber side guard boards 7, the caving shield side guard board is hinged through the caving shield thruster jack in guide rod and the caving shield, the expansion and the contraction of caving shield thruster jack control shielding side guard board.
High inclination-angle hydraulic support as shown in Figure 1, said back timber front end is provided with face guard 2, and the two ends of face guard jack 3 are hinged with back timber 1 and face guard 2 respectively, the expansion and the contraction of wall supporting jack 3 control face guards 2.
Like Fig. 1, Fig. 2 and high inclination-angle hydraulic support shown in Figure 3; Said back timber front end is provided with organic road protector 4; Machine road protector 4 is made up of protected apron 22 and protection jack 23; Protected apron 22 is hinged on back timber 1 front end side, and the two ends of protection jack 23 are hinged with back timber 1 and protected apron 22 respectively, the expansion and the contraction of protection jack 23 control protected aprons 22.
High inclination-angle hydraulic support as shown in Figure 1, said back timber 1 web is provided with tilting prevention device 5, and anti-device can be a tilting prevention device or tiltedly draw tilting prevention device hand in hand.
Tilting prevention device hand in hand as shown in Figure 6 is made up of the anti-down connecting axle 29 of handing in hand, hand in hand anti-down connector 30 and the anti-down jack 31 of handing in hand; The anti-down connecting axle I 29 of handing in hand is separately positioned on adjacent two back timbers 1 and the back timber 111 with the anti-down connecting axle II 291 of handing in hand; The anti-down connecting axle I 29 of handing in hand links to each other with the anti-down connector I 30 of handing in hand; The anti-down connecting axle II 291 of handing in hand links to each other with the anti-down connector II 301 of handing in hand; The anti-down connector I 29 of handing in hand and hand in hand and be provided with the anti-down jack 31 of handing in hand between the anti-down connector II 291, the two ends of the anti-down jack 31 of handing in hand link to each other with the anti-down connector II 301 of handing in hand with the anti-down connector I 30 of handing in hand respectively.
The tilting prevention device that tiltedly draws as shown in Figure 7 is by tiltedly drawing anti-down connecting axle 29, tiltedly drawing anti-down connector, mining slick and sly chain 33 and tiltedly draw jack 35 to constitute; Tiltedly draw anti-down connecting axle 29 to be fixed on the back timber 1; Tiltedly draw anti-down connecting axle 29, tiltedly draw anti-down connector I 32, mining slick and sly chain 33, tiltedly draw anti-down connector II 34, tiltedly draw jack 35 and tiltedly draw anti-down connector III 36 to be connected successively, tiltedly draw another hydraulic pressure base 152 of the other end and work plane of anti-down connector III 36 to link to each other.
Accent rack device as shown in Figure 8 by accent set a roof beam in place 37 with transfer frame jack 38, transfer frame jack 38 1 ends to be fixed on the base 15, the other end and accent are set a roof beam in place and 37 are connected.
Said shoe is made up of base shoe 182, conveyer shoe 18 and anchor device; Base shoe 182 as shown in Figure 9 is made up of anti-skidding connector of base and the anti-skidding jack 40 of base; The anti-skidding connector I 39 of base is hinged on respectively on adjacent pans 15 and 151 with the anti-skidding connector II 391 of base, and the anti-skidding connector I 39 of base is connected through the anti-skidding jack of jointed shaft and base 40 two ends with the anti-skidding connector II of base 391 centres; Conveyer shoe shown in figure 10 is made up of the anti-skidding connector of conveyer, the anti-skidding slick and sly chain 42 of conveyer and the anti-skidding jack 44 of conveyer; The anti-skidding connector I 41 of conveyer is fixed on the drag conveyor; The anti-skidding connector II of the anti-skidding slick and sly chain of the anti-skidding connector I of conveyer 41, conveyer 42, conveyer 43, the anti-skidding jack 44 of conveyer are connected with the anti-skidding connector III 45 of conveyer successively, and the other end of the anti-skidding connector III 45 of conveyer links to each other with base 15; Anchor device shown in figure 11 by three groups of hydraulic supports of work plane, anchoring jack 46, anchor connection 47, the slick and sly chain 48 of anchoring, lead chain barrel 49 and lead carrier bar 50 and constitute; Anchoring jack 46 is fixed on first base 1 of file leader through bearing pin; The slick and sly chain 48 of anchoring is connected with anchoring jack 46 through anchor connection 47, and anchoring slyness chain 48 passes leading chain barrel 49 and leading carrier bar 50 and be connected with the 3rd bracket base 152 on fixedly first support 1 of file leader and second support 111.
Adjusting push rod device shown in figure 12 is to regulate push rod jack 51, regulates push rod jack 51 and is fixed on base 1 anterior intraperitoneal.
Be made up of sidewalk spacer assembly jack 53 and division board 52 like Figure 13 and sidewalk spacer assembly shown in Figure 14, division board 52 is fixed on the base 1 through back shaft, and sidewalk spacer assembly jack 53 is connected in 52 of base 1 and division boards.
Claims (10)
1. a high inclination-angle hydraulic support comprises base and back timber, and back timber is connected through column with base; Back timber is provided with the back timber side guard board, and the back timber rear portion is connected with caving shield through jointed shaft, and caving shield is provided with the caving shield side guard board; Between back timber and the caving shield balance jack is set; Caving shield and base are hinged with front and rear connecting rods respectively, it is characterized in that: the back timber side guard board is provided with telescopic retaining cash device, and scalable shelves cash device is made up of waste rock board, retaining cash plate, retaining cash jack and retaining cash plate jack; Waste rock board is hinged on the back timber; The two ends of retaining cash jack are hinged with back timber and waste rock board respectively, and retaining cash plate is inserted in the waste rock board web, and the two ends of retaining cash plate jack are hinged with shelves cash plate with retaining cash plate respectively.
2. high inclination-angle hydraulic support according to claim 1; It is characterized in that: described back timber side guard board and caving shield side guard board are mobilizable side guard boards; The back timber side guard board is hinged through the back timber thruster jack in guide rod and the back timber, and the caving shield side guard board is hinged through the caving shield thruster jack in guide rod and the caving shield.
3. high inclination-angle hydraulic support according to claim 2 is characterized in that: said back timber front end is provided with face guard, and the two ends of face guard jack are hinged with back timber and face guard respectively.
4. high inclination-angle hydraulic support according to claim 2; It is characterized in that: said back timber front end is provided with organic road protector; Machine road protector is made up of protected apron and protection jack; Protected apron is hinged on back timber front end side, and the two ends of protection jack are hinged with back timber and protected apron respectively.
5. according to claim 3 or 4 described high inclination-angle hydraulic supports, it is characterized in that: said back timber web is provided with tilting prevention device.
6. high inclination-angle hydraulic support according to claim 5; It is characterized in that: said tilting prevention device is that tilting prevention device perhaps tiltedly draws tilting prevention device hand in hand; Hand in hand tilting prevention device is made up of the anti-down connecting axle of handing in hand, hand in hand anti-down connector and the anti-down jack of handing in hand; The anti-down connecting axle I of handing in hand is separately positioned on adjacent two back timbers with the anti-down connecting axle II of handing in hand; The anti-down connecting axle I of handing in hand links to each other with the anti-down connector I of handing in hand; The anti-down connecting axle II of handing in hand links to each other with the anti-down connector II of handing in hand; The anti-down connector I of handing in hand and hand in hand and be provided with the anti-down jack of handing in hand between the anti-down connector II; The hand in hand two ends of anti-down jack link to each other with the anti-down connector II of handing in hand with the anti-down connector I of handing in hand respectively, tiltedly draw tilting prevention device by tiltedly drawing anti-down connecting axle, tiltedly drawing anti-down connector, mining slick and sly chain and tiltedly draw jack to constitute, and tiltedly draw anti-down connecting axle to be fixed on the back timber; Tiltedly draw anti-down connecting axle, tiltedly draw anti-down connector I, mining slick and sly chain, tiltedly draw anti-down connector II, tiltedly draw jack and tiltedly draw anti-down connector III to be connected successively, tiltedly draw another hydraulic pressure base of the other end and work plane of anti-down connector III to link to each other.
7. high inclination-angle hydraulic support according to claim 6; It is characterized in that: at the middle-grade push unit that is provided with of base, a side is provided with the accent rack device, connects shoe or tilting prevention device through bearing pin on the preceding gap bridge; Preceding gap bridge front portion is provided with the sidewalk spacer assembly and regulates push rod device; The front portion, side also can connect shoe through bearing pin, and push unit is anterior to be connected with drag conveyor, and the climbing handrail is set on the double-telescopic upright post.
8. high inclination-angle hydraulic support according to claim 7 is characterized in that: said accent rack device is set a roof beam in place by accent and is transferred the frame jack, transfers frame jack one end to be fixed on the base, and the other end is set a roof beam in place with accent and is connected.
9. high inclination-angle hydraulic support according to claim 7; It is characterized in that: described shoe is made up of base shoe, conveyer shoe and anchor device; The base shoe is made up of anti-skidding connector of base and the anti-skidding jack of base; Anti-skidding connector I of base and the anti-skidding connector II of base are hinged on respectively on the adjacent pans, and the anti-skidding connector I of base is connected through the anti-skidding jack of jointed shaft and base two ends with the anti-skidding connector II of base is middle; The conveyer shoe is by the anti-skidding connector of conveyer, the anti-skidding slick and sly chain of conveyer and constitute; The anti-skidding connector I of conveyer is fixed on the drag conveyor; The anti-skidding connector I of conveyer, the anti-skidding slick and sly chain of conveyer, the anti-skidding connector II of conveyer, the anti-skidding jack of conveyer and the anti-skidding connector III of conveyer are connected successively; The other end of the anti-skidding connector III of conveyer links to each other with base; Said anchor device by the slick and sly chain of three groups of hydraulic supports of work plane, anchoring jack, anchor connection head, anchoring, lead chain barrel and lead carrier bar and constitute; The anchoring jack is fixed on first base of file leader through bearing pin, and the slick and sly chain of anchoring is connected with the anchoring jack through the anchor connection head, anchoring slyness chain pass first of fixing file leader with second on lead chain barrel and lead carrier bar and be connected with the 3rd base.
10. high inclination-angle hydraulic support according to claim 9; It is characterized in that: said adjusting push rod device is to regulate the push rod jack; Regulate the push rod jack and be fixed on the anterior intraperitoneal of base; Said sidewalk spacer assembly is made up of sidewalk spacer assembly jack and division board, and division board is fixed on the base through back shaft, and sidewalk spacer assembly jack is connected between base and division board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105422406A CN102465707A (en) | 2010-11-14 | 2010-11-14 | High-inclination-angle hydraulic support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105422406A CN102465707A (en) | 2010-11-14 | 2010-11-14 | High-inclination-angle hydraulic support |
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| Publication Number | Publication Date |
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| CN102465707A true CN102465707A (en) | 2012-05-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105422406A Pending CN102465707A (en) | 2010-11-14 | 2010-11-14 | High-inclination-angle hydraulic support |
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| CN (1) | CN102465707A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102877874A (en) * | 2012-10-26 | 2013-01-16 | 郑州煤矿机械集团股份有限公司 | Bottom adjusting mechanism for fully mechanized coal mining face hydraulic bracket |
| CN102889090A (en) * | 2012-09-28 | 2013-01-23 | 中煤北京煤矿机械有限责任公司 | Rigidity adjustable waste rock stopping device for large-tilt-angle working face support |
| CN102943682A (en) * | 2012-10-23 | 2013-02-27 | 三一重型装备有限公司 | Large-dip-angle hydraulic support and flying gangue prevention device thereof |
| CN103382846A (en) * | 2013-07-23 | 2013-11-06 | 三一重型装备有限公司 | Hydraulic support and anti-skid device thereof |
| CN104005779A (en) * | 2014-03-03 | 2014-08-27 | 神华集团有限责任公司 | Skid-proof bracket device |
| CN104234732A (en) * | 2014-09-22 | 2014-12-24 | 巨隆液压设备(集团)有限公司 | Hydraulic bracket for end socket |
| CN104329107A (en) * | 2014-09-09 | 2015-02-04 | 四川华蓥山广能集团嘉华机械有限责任公司 | Large inclining angle fully mechanized hydraulic support anti-tilting and anti-sliding device |
| CN113195870A (en) * | 2018-10-29 | 2021-07-30 | 久益环球地下采矿有限责任公司 | Top plate support connector |
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| CN2693951Y (en) * | 2004-02-04 | 2005-04-20 | 天地科技股份有限公司 | High inclination-angle hydraulic support |
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| CN2693951Y (en) * | 2004-02-04 | 2005-04-20 | 天地科技股份有限公司 | High inclination-angle hydraulic support |
| CN201221370Y (en) * | 2008-01-11 | 2009-04-15 | 内蒙古伊泰集团有限公司 | Front and back containing type pillar mining specific hydraulic support |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102889090A (en) * | 2012-09-28 | 2013-01-23 | 中煤北京煤矿机械有限责任公司 | Rigidity adjustable waste rock stopping device for large-tilt-angle working face support |
| CN102889090B (en) * | 2012-09-28 | 2015-02-04 | 中煤北京煤矿机械有限责任公司 | Rigidity adjustable waste rock stopping device for large-tilt-angle working face support |
| CN102943682A (en) * | 2012-10-23 | 2013-02-27 | 三一重型装备有限公司 | Large-dip-angle hydraulic support and flying gangue prevention device thereof |
| CN102877874A (en) * | 2012-10-26 | 2013-01-16 | 郑州煤矿机械集团股份有限公司 | Bottom adjusting mechanism for fully mechanized coal mining face hydraulic bracket |
| CN103382846A (en) * | 2013-07-23 | 2013-11-06 | 三一重型装备有限公司 | Hydraulic support and anti-skid device thereof |
| CN104005779A (en) * | 2014-03-03 | 2014-08-27 | 神华集团有限责任公司 | Skid-proof bracket device |
| CN104329107A (en) * | 2014-09-09 | 2015-02-04 | 四川华蓥山广能集团嘉华机械有限责任公司 | Large inclining angle fully mechanized hydraulic support anti-tilting and anti-sliding device |
| CN104234732A (en) * | 2014-09-22 | 2014-12-24 | 巨隆液压设备(集团)有限公司 | Hydraulic bracket for end socket |
| CN113195870A (en) * | 2018-10-29 | 2021-07-30 | 久益环球地下采矿有限责任公司 | Top plate support connector |
| CN113195870B (en) * | 2018-10-29 | 2024-04-23 | 久益环球地下采矿有限责任公司 | Top plate support connector |
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Application publication date: 20120523 |