Patents
Sitemap › E21 - Earth or rock drilling; Mining › E21D - Shafts; Tunnels; Galleries; Large underground chambers › E21D 23 - Mine roof supports for step-by-step movement, e.g. in combination with provisions for shifting of conveyers, mining machines, or guides therefor
Patents for E21D 23 - Mine roof supports for step-by-step movement, e.g. in combination with provisions for shifting of conveyers, mining machines, or guides therefor (3,544)
12/2014
12/10/2014CN204002883U 双四连杆机构低位放顶煤液压支架 Double four-bar linkage Low Caving hydraulic support
12/10/2014CN204002867U 一种操纵阀组的阀芯组件 A manipulation of the spool valve assembly
12/10/2014CN204002866U 一种通用型液控单向阀 A common type check valve
12/10/2014CN104196553A 一种基于EtherCAT的液压支架远程控制系统 A hydraulic support EtherCAT-based remote control system
12/10/2014CN104196552A 抬底装置及液压支架 Bottom bracket and hydraulic lift equipment
12/10/2014CN104196551A 液压支架 Hydraulic support
12/10/2014CN104196550A 一种高柔性端头支架侧护结构 A highly flexible tip bracket side retaining structure
12/10/2014CN103104278B 液压支架装车装置 Hydraulic supports loading device
12/10/2014CN102852542B 一种用于保护煤矿井下综采工作面支架护帮板的自动控制系统和自动控制方法 A protective coal mine fully mechanized coal face stand guard to help board automatic control system and method for automatic control
12/10/2014CN102704978B 一种高位综放充填开采筛选液压支架 One kind of high-mechanized caving mining screening filling hydraulic support
11/2014
11/04/2014US8876218 Hydraulic circuit for longwall support
10/2014
10/02/2014WO2014160253A1 Mining methods and equipment
09/2014
09/25/2014US20140286713 Prop head bearing device for shield supports
09/24/2014EP2781689A1 Prop head bearing device for shield supports
09/18/2014WO2014139195A1 Overall top beam statically indeterminate hydraulic bracket
09/18/2014US20140265524 Mining methods and equipment
09/18/2014US20140265519 Mining methods and equipment
08/2014
08/21/2014DE102007049604B4 Ventilanordnung Valve assembly
08/13/2014CN203769823U 一种锥面密封截止阀 One kind of cone seal globe valve
08/13/2014CN203769822U 液压支架电液控制系统 Electro-hydraulic control system of hydraulic support
08/13/2014CN203769821U 可伸缩式推移框架 Over retractable frame
08/13/2014CN203769820U 三自由度并联液压支架 Three-DOF parallel hydraulic support
08/13/2014CN203769819U 箱型底座柱窝结构 Nest box base column structure
08/13/2014CN103982207A 一种高工作阻力液压支架立柱 A high-resistance hydraulic support pillar work
08/13/2014CN102748054B 液压支架推移机构及液压支架 Hydraulic support the passage of bodies and hydraulic support
08/13/2014CN102720517B 超前支护支架、超前支护支架组及超前支护装置 Advance support bracket, advance support stent group and advance support device
08/13/2014CN102587945B 掘进巷道液压迈步式多级临时支护装备 Roadway multi-stage hydraulic swing temporary support equipment
08/06/2014CN203756229U 一种支架式条带充填模板 A stent type bands filling template
08/06/2014CN203756212U 一种液压系统用反冲洗过滤装置 A hydraulic system with backwash filtration device
08/06/2014CN203756211U 双液压支架互锁控制装置 Dual hydraulic support interlock control device
08/06/2014CN203756210U 用于机窝顶板支护梁的移动装置 Mobile devices for machine nest roof support beams
08/06/2014CN203756209U 纵梁交错式掘进工作面临时支护支架 Supporting bracket stringer staggered when faced with tunneling work
08/06/2014CN203756208U 顶梁伸缩式掘进工作面临时支护支架 Supporting bracket retractable roof beams when faced with tunneling work
08/06/2014CN203756207U 一种用于综放面运输顺槽近采空区段支护及放煤的支架装置 Stent device for caving face transport trough near Gob sector support and caving in
08/06/2014CN103967511A 一体机 One machine
08/06/2014CN103967510A 液压支架控制系统、液压支架控制系统的控制方法 Hydraulic support control system, hydraulic control system control method stent
07/2014
07/30/2014CN203742645U 一种斜变平下架机构 A slant to flatten the shelf mechanism
07/30/2014CN203742644U 急倾斜中厚煤层用液压掩护支架 Steeply inclined thick seam in the hydraulic shield support
07/30/2014CN203742643U 煤矿液压支架 Mine hydraulic support
07/30/2014CN203742642U 超前支架万向连接座 Advance seat bracket universal connection
07/30/2014CN203742641U 用于巷道临时支护的液压支架 Hydraulic support for the temporary support of the roadway
07/30/2014CN203742636U 一种掘支锚一体机组 One kind of dig branched anchor one unit
07/30/2014CN103953376A 一种大倾角工作面快速铺网稳固顶板方法 One kind of big dip face fast lapping method solid roof
07/30/2014CN103953372A 一种供煤矿综采液压支架使用的氮气安全阀 One kind of hydraulic support for the use of coal nitrogen valve
07/30/2014CN103953369A 一种供煤矿综采液压支架使用的氮气安全阀 One kind of hydraulic support for the use of coal nitrogen valve
07/23/2014CN203730450U 工程液压缸 Engineering hydraulic cylinder
07/23/2014CN203730039U 一种巷道移动式支架底座 One kind of mobile stand base tunnel
07/23/2014CN203730038U 一种巷道支架底座 One kind of roadway support base
07/23/2014CN203730037U 急倾斜薄煤层掩护支架组 Steep thin seam Shield Support Group
07/23/2014CN203730036U 支架绞车一体化装置 Bracket winch integrated device
07/23/2014CN203730035U 一种用于可拆卸护帮结构件的拼装拼胎和液压支架 Assembling a detachable protective structures used to help fight the tires and hydraulic support
07/23/2014CN203730034U 一种具有三级护帮联动的掩护式液压支架 Having three linkage shield to help protect hydraulic support
07/23/2014CN203730028U 巷道顶板波纹紧固器 Roof corrugated fastener
07/23/2014CN103939121A 大步距沿顶迈步式单柱支护组 Strode along the top to move away from single-column support group
07/23/2014CN102628362B 薄煤层滚筒采煤机自动化工作面成套设备 Face thin seam shearer automation equipment
07/23/2014CN102587950B 双缓冲式推移单向阀 Double-buffered goes way valve
07/23/2014CN102536277B 一种悬臂式掘进机随车配套支锚系统 One kind of roadheader vehicle matching anchor system support
07/16/2014CN203717010U 一种电磁先导阀阀芯 An electromagnetic pilot valve spool
07/16/2014CN203717009U 一种移架对中装置 A phase shifting frame for the device
07/16/2014CN203717008U 一种挡矸切顶纠偏自移沿空留巷液压支架 One kind of self-correction block Refuse toppers shift hydraulic support for Gob
07/16/2014CN203717007U 一种挡矸切顶挂模沿空留巷液压支架 One kind of block Refuse toppers hang die for Gob hydraulic support
07/16/2014CN203717006U 采矿工作面挡矸切顶挂模沿空留巷液压支架 Mining Face gear Refuse toppers hang die for Gob hydraulic support
07/16/2014CN203717005U 综采工作面两巷循环移动式超前支护液压支架 Mechanized mining face two lane loop advance support mobile hydraulic support
07/16/2014CN203717004U 急倾斜中厚煤层用掩护支架 Steeply inclined thick seam in the bracket with cover
07/16/2014CN203717003U 一种新型沿空巷道液压支架 A new hydraulic support along the roadway
07/16/2014CN203717002U 一种多功能柔模混凝土沿空留巷液压支架 A multifunctional soft molded concrete hydraulic support for Gob
07/16/2014CN203715169U 单侧式液压千斤顶及液压支架 Unilateral hydraulic jacks and hydraulic support
07/16/2014CN103924997A 一种液压支架的滚动移架方法 Scroll a hydraulic support frame shift method
07/16/2014CN103924996A 一种带锚杆钻机的液压自移式端头保护支架 A hydraulic bolt rig with self-protection bracket for portable terminals
07/16/2014CN103924995A 一种充填支架自动捣实控制系统 One kind of filling control systems stent automatic tamping
07/16/2014CN102444416B 综采工作面液压支架梁式回撤装置 Longwall Face retracement bracket beam apparatus
07/15/2014US8777325 Method for determining the position or situation of installation components in mineral mining installations and mining installation
07/09/2014CN203702216U 软启动阀 Soft-start valve
07/09/2014CN203702215U 一种采全高和放顶煤两用液压支架 One kind of mining coal caving full height and dual hydraulic support
07/09/2014CN203702214U 一种用于综采工作面的降尘液压支架 A mechanized mining face dust hydraulic support
07/09/2014CN203702213U 带有调偏装置的悬移支架 Hanging with a shift of offset means bracket
07/09/2014CN203702212U 架棚巷道用悬移顶梁液压支护装置 Suspended Load Shed roadway roof beams with hydraulic support device
07/09/2014CN203702211U 掩护式液压支架及其顶梁自动调节装置 Covering hydraulic bracket and the top beam automatic adjustment device
07/09/2014CN203702210U 液压支架与刮板输送机的配合结构 With the structure of hydraulic supports and scraper conveyors
07/09/2014CN203702209U 液压支架防滑装置 Hydraulic support anti-slip device
07/09/2014CN203702208U 一种端头液压支架升降座 An end-head hydraulic lift seat bracket
07/09/2014CN203702207U 隧道施工支撑装置 Tunnel construction support device
07/09/2014CN203702206U 液压支架侧护板 Hydraulic support side guards
07/09/2014CN203702198U 煤矿用电动注液泵 Mine electric injection pump
07/09/2014CN203702196U 一种交替单向阀 An alternating one-way valve
07/09/2014CN103912312A 一种具有辅助定位节点的工作面操作人员定位方法 Face operator positioning method has assisted positioning node
07/09/2014CN103912299A 一种使用编码器校正工作面液压支架组直线度的系统 A method of using the encoder adjustment Hydraulic Support Group straightness system
07/09/2014CN103912298A 一种使用编码器校正工作面液压支架组直线度的方法 A method of using the encoder adjustment Hydraulic Support Group straightness methods
07/09/2014CN103912297A 一种使用光纤的工作面液压支架组直线度控制系统 A method of using Hydraulic Support Group fiber straightness control system
07/09/2014CN103912296A 一种基于图像测量的工作面装备定位系统 An image measurement positioning system based on face equipment
07/09/2014CN102628368B 一种隧道自移支撑棚 Since the move to support a tunneling shed
07/02/2014CN203685247U 新型支架电液控制系统 New stent electro-hydraulic control system
07/02/2014CN203685246U 液压支架的新型多通块 New multi-pass block hydraulic support
07/02/2014CN203685245U 一种柔性模板沿空留巷液压支架 A flexible template for Gob hydraulic support
07/02/2014CN203685244U 掩护式液压支架 Covering hydraulic supporter
07/02/2014CN203685243U 掘进巷道炮掘工作面的链接式十米加固器 Blasting Face roadway link type ten meters stiffeners
07/02/2014CN203685242U 带有防爆破可伸缩护板的机炮联采支架 Cannon blast with anti-retractable shield joint mining stent
07/02/2014CN203685232U 一种500L/min插装硬密封换向阀 One kind of 500L / min hard sealing valve cartridge
07/02/2014CN203682981U 双侧式液压千斤顶及液压支架 Bilateral hydraulic jacks and hydraulic support
07/02/2014CN103899344A 一种液压支架顶梁自适应调平方法及装置 A hydraulic support beam method and apparatus for adaptive leveling
1 2 3 4 5 6 7 8 9 10 11 12 ... 36