Patents
Sitemap › E21 - Earth or rock drilling; Mining › E21C - Mining or quarrying › E21C 25 - Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
Patents for E21C 25 - Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam (2,629)
07/2012
07/11/2012CN102562056A Small tooth difference type coal mining machine rocker arm
07/11/2012CN102562055A Rocker arm and roller transmission structure of roller coal-mining machine
07/11/2012CN102003179B Saw blade type cave development machine
07/11/2012CN101709642B Track-type four-arm rock drilling jumbo
07/04/2012CN202300402U 一种掘进机铲板本体 One kind of boring machine shovel blade body
07/04/2012CN202300386U 大坡度掘进机 Large Slope boring machine
07/04/2012CN202300385U 综合机械化岩巷掘进机的顶帮锚杆锚索钻机 Top mechanized rock roadheader help anchor bolt rig
07/04/2012CN202298705U 多体非连续截割煤岩设备 Multi-body non-continuous cutting coal or rock equipment
07/04/2012CN102536233A Combined height-adjustable coal cutting machine with small roller and large mining height, as well as coal cutting process of combined height-adjustable coal cutting machine
07/04/2012CN102536229A Tunneling, protecting and anchoring parallel work system and construction technology
07/04/2012CN102536228A Cutting arm of development machine and development machine
07/04/2012CN102536227A Rotary-digging type coal mining machine and development machine cutting part
07/04/2012CN102536226A Superposition arm three-roller large-mining-height coal mining machine
07/04/2012CN102536225A Large-mining-height fully-mechanized-face fast coal mining technology
07/04/2012CN101942998B Development machine and floating sealing device thereof
06/2012
06/28/2012US20120161493 Method for Producing a Face Opening Using Automated Systems
06/27/2012CN101936160B Three-soft coal bed rotary-cut drilling elimination outburst method and rotary-cut drilling device
06/27/2012CN101881163B Continuous miner and running part thereof
06/20/2012CN102505941A Tunneling machine
06/20/2012CN102505940A Sled type trolley for scraper rock loader
06/14/2012US20120146387 Autonomous mobile conveyor system
06/13/2012CN202273677U Sled type trolley for scraper rock loader
06/13/2012CN202273676U 一种滚筒式采煤机截割部 A drum type shearer cutting unit
06/13/2012CN202273167U 破碎滚筒及自行式破碎采矿机 Broken Drum and self-crusher mining machine
06/12/2012US8197011 Mining and demolition tool
06/06/2012CN202266260U 煤与矸石分离并将矸石回填的技术装备 Separation of coal and waste rock and waste rock backfill technology and equipment
06/06/2012CN202266259U 两臂顶帮锚杆锚索施工钻车升降平台上的脚踏翻板装置 Top arms flap means to help foot drill bolt and cable car construction lifting platform
06/06/2012CN202266258U 一种两臂顶帮锚杆锚索施工钻车的液压锚杆钻机 One kind of arms anchor bolt in the top of the car's hydraulic bolt construction drilling rig
06/06/2012CN202266257U 悬臂式掘进机的伸缩型切割头连接结构 Roadheader cutting head telescopic type connection structure
05/2012
05/30/2012CN202250078U Protection device of cutting head of tunneling machine and tunneling machine
05/30/2012CN202250076U Development machine and cutting part thereof
05/30/2012CN202250070U Heading machine integrated with wet type dust-removing device
05/30/2012CN202250069U Tunneling saw for coal mining
05/30/2012CN202250068U Coal mining machine and cantilever type crushing roller thereof
05/30/2012CN202250067U Coal mining machine and supporting-type crushing roller thereof
05/30/2012CN202250066U Roadheader cutting device
05/30/2012CN101769736B Mining height instrument for continuous miner
05/30/2012CN101709647B Minitype multifunctional heading machine
05/30/2012CN101403302B Pedrail type liftable anchor bar anchor cable construction drill rig and double-lane fast digging technique
05/23/2012CN202228895U Lubricating structure for hinge shaft of coal cutter
05/23/2012CN202228078U Pick device, cutting mechanism and coal machinery
05/23/2012CN202228075U Tunneling machine
05/23/2012CN202228074U Efficient and convenient coal cutter
05/23/2012CN202228073U Tunnel boring machine for rock roadway
05/23/2012CN102465712A 超长钻孔高压水射流钻割联动煤层瓦斯抽放与防突系统及方法 Bored high pressure water jet cutting linkage seam gas drainage drilling and outburst prevention system and method
05/23/2012CN102465702A 块煤采割机 Lump tapping machine
05/23/2012CN101956552B Roller for mixed row cutting tooth coal winning machine
05/23/2012CN101949290B Method for realizing overload protection of coal mining machine by adjusting rotary drum height of coal mining machine
05/16/2012CN202220604U Transmission device without idle wheel or with few idle wheels at cutting part of rotary drum type coal mining machine
05/16/2012CN202220602U Split type cutting device of coal mining machine
05/15/2012US8177456 Pavement milling assembly
05/10/2012WO2011105906A3 Launch vehicle for a mining system, a mining system and a method for mining
05/09/2012CN202215244U Fan-shaped loading device of coal mining entry-driving machine
05/09/2012CN202215243U Advancing beam and front locating seat of drilling jumbo
05/09/2012CN202215242U Tunneling machine
05/03/2012US20120104832 Drive mechanism for a longwall mining machine
05/03/2012US20120104830 Grading Pick With Extended Fins
05/03/2012US20120104828 Can-based system to calculate the weight of milled materials
05/02/2012CN1847614B Underground mining machine
05/02/2012CN102434155A Coal cutter and rocker arm transmission system thereof
05/02/2012CN102434154A Development machine-mounted anchor rod drilling rig
05/02/2012CN102434153A Coal-mining device and coal-mining method of steeply inclined extremely thin coal seam manless working face
05/02/2012CN102433829A Crushing rotor and self-propelled crushing mining machine
05/02/2012CN102433828A Two piece tool holder assembly
04/2012
04/26/2012WO2012052496A1 Excavating deposits from an underground formation layer
04/26/2012WO2012051803A1 Composite rotary-cutting mining machine
04/26/2012US20120098326 Reduced Volume Cutting Tip and Cutting Bit Incorporating Same
04/26/2012US20120098325 Method for the Automated Production of a Defined Face Opening by Means of Slope-Assisted Radar Navigation of the Roller of a Roller Cutter Loader
04/26/2012CA2815146A1 Excavating deposits from an underground formation layer
04/25/2012CN202202867U 一种用于固定采煤机滚筒的装置 An apparatus for fixing shearer drum
04/25/2012CN102425415A 半煤岩巷炮掘煤矸分装机 Semi coal gangue rock roadway Excavating dispensing machines
04/25/2012CN102425414A 采煤机滚筒专用的开槽截齿结构 Shearer drum structure dedicated slotting cutter
04/25/2012CN102425413A 一种采煤机 One kind Shearer
04/18/2012CN102418521A Method and equipment for clearing baseplates of return airway of ultra-large mining height working face
04/12/2012WO2012012160A3 Cutter assembly configured to allow tool rotation
04/11/2012CN202187761U High-power heavy type low seam mining machine
04/11/2012CN102410017A 支护式综合掘锚机 Supporting style integrated dig windlass
04/11/2012CN102410016A Rectangular full-section continuous miner
04/04/2012CN102400438A 破碎铣刨滚筒 Broken milling drum
03/2012
03/28/2012CN102392640A Close-range thin coal layer simultaneous mining and parallel transporting method
03/28/2012CN102392638A Cutting device for roadheader
03/28/2012CN102392637A Novel coal cutter
03/28/2012CN102392465A Multi-body discontinuous coal petrography cutting equipment
03/22/2012US20120068524 Multiple Milling Drums Secured to the Underside of a Single Milling Machine
03/21/2012CN202170989U 一种减速机及应用其的掘进机 A reduction machine and application thereof boring machine
03/21/2012CN202170984U 一种减速机及应用其的掘进机 A reduction machine and application thereof boring machine
03/21/2012CN102388204A Retention assembly for cutting bit
03/21/2012CN102383798A Tunneller for integrated wet type dust removal device
03/21/2012CN102383795A Comprehensive mechanical rock drift excavating process
03/21/2012CN102383794A Cross side dumping arrangement coordinated mode of rear conveyer of fully mechanized working face and support structure
03/21/2012CN102383793A Dual function machine for drilling and loading in tunnel
03/21/2012CN102383792A Cutting type remote control coal mining machine
03/21/2012CN102383791A Shearer roller with slotting function
03/21/2012CN102383790A Novel cutting head spiral drum used for shearer
03/21/2012CN101644155B Hydraulic drill loader
03/20/2012US8140259 Location device with a gravity measuring device
03/14/2012CN202165080U 综掘机截割头保护罩 Digging Machine cutting head guard
03/14/2012CN202165078U 一种切割头式短壁采煤机的螺旋装煤装置 A cutting-head screw short wall shearer coal loading device
03/14/2012CN202165077U 一种掘进机及其工作机构 One kind of boring machine and its working bodies
03/14/2012CN102373927A Slice mining technology and coal winning machine thereof
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