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)
07/2014
07/02/2014CN103899343A 三自由度并联液压支架 Three-DOF parallel hydraulic support
07/02/2014CN102877872B 重型大采高全防护大倾角长壁综放工作面自动控制支护设备 Heavy large mining height full protective big dip Longwall Caving Face Supporting automatic control equipment
07/02/2014CN102444415B 固体充填用端头支架 Solid filling tip bracket
07/01/2014US8764349 Gob shield for shield support and method for the production thereof
06/2014
06/25/2014CN203669907U 一种煤矿综采支架操纵阀手把闭锁装置 One kind of fully mechanized coal mining stent control valve handle locking device
06/25/2014CN203669906U 煤矿巷道悬吊式液压临时支护装置 Temporary suspension hydraulic mine roadway support device
06/25/2014CN203669905U 一种液压自动带网与上木料装置 A hydraulic automatic device with network and on wood
06/25/2014CN203669904U 一种可移动的超前支护装置 Advance support a removable device
06/25/2014CN203669865U 恒支护掘锚机 Constant support dig windlass
06/25/2014CN103883587A 一种内孔密封部位采用激光熔覆技术处理的液压支架油缸 A portion of the bore seal hydraulic cylinder bracket laser cladding process
06/25/2014CN103883342A 带反底拱连锁装置的u型钢刚性连接支架及其施工方法 U-shaped steel bracket and construction method rigid connection with the anti-chain device Invert
06/25/2014CN103883337A 综采回撤工作面扇形区支护液压支架 Face mechanized mining sector retracement hydraulic supports
06/25/2014CN102797496B 煤矿巷道矸石转载、支护一体机 Mine waste rock roadway reproduced, supporting one machine
06/19/2014WO2014090109A1 Large mining height filling coal mining hydraulic support with coaxially hinged front and rear top beams
06/18/2014CN203655336U 一种液压支架顶梁上用于移架的导轨滑块机构 A hydraulic support beam for the top shelf of the rail slider mechanism moves
06/18/2014CN203655335U 悬移支架操作阀组闭锁装置 Suspended support operating valve locking device
06/18/2014CN203655334U 遥控式轻型薄煤层液压支架 Remote-controlled hydraulic support lightweight thin seam
06/18/2014CN203655333U 滑移支架用柔性连杆 Slip support with flexible link
06/18/2014CN203655332U 一种伸缩隔离式煤矿充填悬移支架 Isolated on a Telescopic mine filling Suspended support
06/18/2014CN203655331U 一种用于煤矿膏体充填开采的液压支架 A coal mining paste filling hydraulic support
06/18/2014CN203655330U 液压支架及其推移杆的吊装固定结构 Hydraulic lifting bracket fixed structure and the passage of the rod
06/18/2014CN103867223A Hydraulic supporting device of suspended top beams for roadways in shed
06/18/2014CN102748055B Circulation advancing type forepoling support
06/18/2014CN102619540B Hydraulic support placing machine turntable device
06/18/2014CN102392666B Protective profile
06/18/2014CN102383794B Cross side dumping arrangement coordinated mode of rear conveyer of fully mechanized working face and support structure
06/11/2014CN203640753U 液压支架牵引调向运输装置 Hydraulic towing bracket adjustment to transport devices
06/11/2014CN203640752U 一种格栅式矿用滑移支架 One kind of mine slip grille bracket
06/11/2014CN203640751U 安装在综放工作面过渡架上的割网装置 Installation of network equipment fully mechanized caving face cut shelves in transition
06/11/2014CN102016973B Screen
06/05/2014DE102012023808A1 Manual controller for remote controlling of mining machine, particularly in underground mining, has housing and battery fastened to housing, and battery has contacts, where counter-contacts of housing are contacted
06/05/2014DE102012023806A1 Manual control device for remote-controlling of mining industry machine i.e. coal cutting machine, in underground construction, has massive pin guided in guide and movable in longitudinal direction for operating emergency stop switch
06/04/2014CN203626872U 一种插装式金属环线硬密封换向阀 One kind of cartridge valve metal hard sealing ring
06/04/2014CN203626871U 液压支架操作阀组限动保护装置 Hydraulic support operating valve stopper protection device
06/04/2014CN203626858U 安全阀 Safety valve
06/04/2014CN103835742A Sectional stepping hydraulic support of coal cutter
06/04/2014CN103835741A Small movable hydraulic support device
06/04/2014CN103835740A Shield support of coal cutter
06/04/2014CN103835739A Self-adaptation adjusting and controlling system for roadway hydraulic support
06/04/2014CN103835738A Cog type hydraulic support of coal cutter
06/04/2014CN103835737A Temporary supporting device of driving machine
05/2014
05/28/2014CN103821549A 大采高液压支架 Large mining height hydraulic support
05/28/2014CN103821548A 一种抬底机构及液压支架 One kind of mechanism and hydraulic lift Bottom Bracket
05/22/2014WO2013120474A3 Hydraulic circuit for longwall support
05/21/2014CN203603952U 端面密封单向锁 Seal-way lock
05/21/2014CN203603951U 一种平推式立层液压支架 One kind of flat push legislation layer hydraulic support
05/21/2014CN203603950U 用于液压支架上的推杆 Hydraulic support for the putter on
05/21/2014CN203603949U 液压支架用柔性护帮辅助防护装置 Hydraulic support with flexible auxiliary guards help protect
05/21/2014CN203603948U 煤炭综采工作面用液压支架立柱固定机构 Mechanized coal mining face with hydraulic support column fixing mechanism
05/21/2014CN203603947U 两柱放顶煤液压支架 Two pillar top coal caving hydraulic support
05/21/2014CN203603946U 电液控制大工作阻力四柱放顶煤支架 Electro-hydraulic control big job poster caving support resistance
05/21/2014CN203603945U 一种采煤工作面端头液压支架 One kind of hydraulic mining face end bracket
05/21/2014CN203603944U 一种可调式护顶煤悬移支架 An adjustable type retaining top coal Suspended support
05/21/2014CN203603943U 液压支架移后溜千斤顶防护装置 After the hydraulic jack scaffold shift slide guards
05/21/2014CN203603942U 一种适用于采煤工作面的护顶装置 One for retaining top device coalface
05/21/2014CN203603905U 防矸装置及采煤系统 Anti-coal gangue devices and systems
05/21/2014CN102808639B 薄壳式液压支架 Shell-type hydraulic support
05/14/2014CN203594467U 放顶煤液压支架及其专用联动控制组合阀 Caving hydraulic bracket and special linkage control combination valve
05/14/2014CN203594466U 极软煤层液压支架 Soft Seam hydraulic support
05/14/2014CN203594465U 用于液压支架上的防爆破可伸缩护板 Blow for anti-hydraulic retractable fender bracket
05/14/2014CN203594464U 液压支架的护帮梁结构及液压支架 Hydraulic support beam structure and help protect hydraulic support
05/14/2014CN203594463U 侧护板同步装置 Side guards synchronizing device
05/14/2014CN203594462U 支架防拔后柱限位装置 Anti-column bracket after pulling limit device
05/14/2014CN102678150B 充填采煤直投式缓冲挡矸装置 Filling DVS bumper coal gangue device
05/07/2014CN203584450U 一种用于急倾斜煤层回采巷道锚钢复合支架 A steeply inclined coal seam anchor steel scaffold
05/07/2014CN203584449U 一种多功能采煤液压防护臂耙装支架装置 A multifunctional protective arm hydraulic mining rake mount devices
05/07/2014CN103775118A 基于全息投影的液压支架工作姿态的再现系统及其方法 Reproducing system and a method based on holographic projection of hydraulic support work attitude
05/07/2014CN103775117A 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
05/07/2014CN103775116A 一种采空区袋式充填悬移支架 One kind of bag filling goaf Suspended support
04/2014
04/30/2014CN203570333U Foldable direction adjusting retreat platform
04/30/2014CN203570330U Vertical type vertical column demounting and mounting machine
04/30/2014CN103758554A Reliable support beam structure for hydraulic support, and hydraulic support
04/30/2014CN103758553A Sprag beam structure for hydraulic support, and hydraulic support
04/30/2014CN103758522A Temporary support method of tunneling working face and equipment thereof
04/30/2014CN103016040B Hydraulic bracket control device with personal safety protection function and control method thereof
04/23/2014CN203559920U Novel base lifting device on hydraulic support
04/23/2014CN103742192A Fully-mechanized-coal-mining-face mechanization withdrawing method
04/23/2014CN103742181A Hydraulic automatic net up-putting and timber loading device
04/23/2014CN103742180A Fully mechanized mining hydraulic bracket aligning device
04/23/2014CN103742176A Excavating and anchor-supporting all-in-one unit
04/16/2014CN203547778U Hydraulic control one way lock
04/16/2014CN203547777U Support
04/16/2014CN203547776U Front-axle beam
04/16/2014CN203547745U Temporary support device of heading machine
04/16/2014CN103726862A Hydraulic support and gangue stop device of backward-sliding pulling lug shaft hole thereof
04/16/2014CN102661161B Addressing system for controller of hydraulic support for mine, and its addressing method
04/16/2014CN102493827B Automatic coal caving system on top coal caving working face and coal caving method thereof
04/16/2014CN102392664B Hydraulic support with inclination sensors and height measurement method thereof
04/16/2014CN102367738B Hydraulic support control device
04/16/2014CN102278132B Device and method for detecting position of coal mining machine based on wireless ZigBee technology
04/16/2014CN102071956B Electro-hydraulic control system for working surface hydraulic support
04/16/2014CN101963063B Method for monitoring a push jack
04/09/2014CN203533073U Coal mine hydraulic support emulsion extra-high pressure conveying and connecting plug
04/09/2014CN203531941U Suspension support installing machine
04/09/2014CN203531940U Stepping type advanced supporting and hydraulic support
04/09/2014CN203531939U Temporary support system for speedy drivage of coal roadway
04/09/2014CN203531930U Large flow safety valve
04/09/2014CN203531929U Novel large-flow one-way lock
04/09/2014CN103711509A Self-moving arched shield support type lapping and shed erecting all-in-one machine
04/09/2014CN102654060B Tunnel excavation staggered type supporting device
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