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Automatic anchor protection platform having combined support of anchor rods and anchor cables
PCT designated stageWO2025208889A1Drilling rodsDerricks/mastsArchitectural engineeringConfined space
The present invention belongs to the technical field of anchor protection apparatuses. Provided is an automatic anchor protection platform having combined support of anchor rods and anchor cables. The automatic anchor protection platform comprises a movable chassis, a multi-cycle anchor rod drilling rig, an anchor rod drilling rig posture positioning control device, an anchor cable support device, a temporary support device, an electrical system and a hydraulic system. Said automatic anchor protection platform integrates the multi-circle anchor rod drilling rig, the anchor cable support device and the temporary support device, and therefore meets the anchoring and support requirements of roadways under different geological conditions, allows anchor rod and anchor cable parallel support operations to be conducted at the same time, and achieves efficient coordinating matching linkage integrated design, thus further promoting efficient operation processes in limited spaces such as coal mines and tunnels.
Owner:TAIYUAN INST OF CHINA COAL TECH & ENG GROUP +1
Deep well hole type flexible mining device and using method thereof
The invention relates to a deep-ground well hole type flexible mining device and a using method thereof.The deep-ground well hole type flexible mining device comprises an equipment channel well communicated to a mining position, detection equipment and a flexible mining machine, and a power line of the flexible mining machine is connected with a power source outside the well; the flexible mining machine comprises a crushing device for excavating ores and an advancing driving device, the crushing device comprises an expansion arm, a crushing assembly and a crushing power assembly, the advancing driving device comprises a device body, and the device body and the expansion arm are connected in a hinged or rotary connection mode and can relatively move in at least two freedom degree directions. And the expansion arms and the device body are folded and unfolded, so that the flexible mining machine can be switched between a first state of passing through the equipment channel well and a second state of performing mining work. The mining operation can be carried out under the condition that personnel do not need to descend into a well, the mining requirements of a deep bottom layer and a seabed bottom layer can be met, and the mining difficulty and the mining cost are reduced.
Owner:BLUELAND ENERGY TECH LTD
Roadway advance support device and roadway tunneling advance reinforcement method
The invention relates to the technical field of roadway supporting, in particular to a roadway advance supporting device and a roadway tunneling advance reinforcing method.The roadway advance supporting device comprises two H-shaped frames, the H-shaped frames are symmetrically arranged, center plates are fixedly installed in the middles of the H-shaped frames, vertical grooves are formed in the sides, close to each other, of the two center plates, and lifting plates are slidably installed in the vertical grooves through electric sliding blocks; an electric sliding block is started to drive a sliding piece to conduct lifting operation in a lifting groove, and at the moment, a push-pull plate moves along with lifting of the sliding piece so that the push-pull plate can push and pull two second arc plates on the two sides; the two corresponding electric telescopic plates below the second arc plate slide on the two H-shaped frames correspondingly, so that the supporting requirements of the whole device in different ranges in a roadway are met, and an electric sliding block is started to enable a driving wheel to rotate to drive a toothed plate above to move; and when the toothed plate moves, the L-shaped plate transversely moves in the cross-shaped groove, so that the rectangular plate and the bearing plate move.
Owner:安徽恒源煤电股份有限公司 +1
Self-adaptive pre-pressure-relief danger-relieving device for deep mine
The invention discloses a self-adaptive pre-pressure-relief danger relieving device for a deep mine. The self-adaptive pre-pressure-relief danger relieving device comprises a supporting assembly. The supporting assembly comprises two side supporting plates which are symmetrically arranged, a top supporting plate is installed on the tops of the side supporting plates through connecting plates, and a plurality of pressure relief buffering assemblies which are arranged at equal intervals are installed on the outer walls of the side supporting plates and the outer wall of the top supporting plate. A pressure relief channel is established through the drilling assembly, continuous and directional hydraulic pressure relief is achieved in combination with the jet flow pressure relief assembly, rock mass fractures are effectively expanded, in addition, high-energy shock waves can be rapidly released through the blasting pressure relief assembly, strong pressure relief is achieved, and the device is suitable for a high-stress area; the jet flow pressure relief assembly and the blasting pressure relief assembly are switched in the hollow anchor rod, and an external water supply system and a blasting control system are connected, so that a mine has high adaptive capacity and safety performance according to different pressure relief requirements.
Owner:HUATING COAL GRP CO LTD +1
Roadway negative Poisson's ratio gradient energy absorption supporting device
The invention relates to the field of roadway surrounding rock supporting in underground engineering, in particular to a roadway negative Poisson's ratio gradient energy-absorbing supporting device which comprises a negative Poisson's ratio gradient energy-absorbing structure, compared with a conventional chiral negative Poisson's ratio structure, deformation regularity and controllability are enhanced, the shape of a connecting rod piece is changed in combination with the special working condition of a coal mine, and the supporting effect of the roadway negative Poisson's ratio gradient energy-absorbing supporting device is improved. The connecting rod piece is a double-spiral connecting rod piece; compared with a traditional hexagonal honeycomb structure, the defect that the honeycomb structure is too fast in failure after being pressed is overcome; and meanwhile, the concave deformation advantage and the chiral ring node rigidity advantage are combined. Gradient design can be adopted in a two-dimensional structure and a three-dimensional structure, through non-uniform distribution of spatial parameters, the bottleneck of a traditional structure in energy absorption efficiency and environmental adaptability is broken through, the structure is particularly suitable for a non-uniform load scene of coal mine underground engineering, the strength of a certain area can be intensively enhanced, the deformation mode of the structure can be changed, and the energy absorption efficiency is improved. And the structure can be customized according to different application scene requirements.
Owner:CHINA UNIV OF MINING & TECH (BEIJING)
Temporary supporting device and heading machine
The utility model provides a temporary supporting device and a heading machine, and relates to the technical field of heading equipment. The temporary supporting device comprises a base, a supporting arm, a supporting assembly and a first driving piece. The base is used for being arranged on the heading machine, the supporting arm is rotationally arranged on the base, the first driving part is arranged on the base, and the first driving part is connected with the supporting arm to drive the supporting arm to swing; the supporting assembly comprises a supporting frame, a side turning frame and a second driving part, the supporting frame is arranged at the end, away from the base, of the supporting arm and used for supporting the working face, the side turning frame is rotationally arranged on the side edge of the supporting frame, and the second driving part is arranged on the supporting frame and connected with the side turning frame so as to drive the side turning frame to abut against the working face. According to the temporary supporting device, the supporting area is increased, and the protection effect is improved.
Owner:CHINA RAILWAY CONSTR HEAVY IND
Auxiliary supporting device for heading machine
The utility model discloses an auxiliary supporting device for a heading machine, which relates to the technical field of heading equipment and comprises a supporting column, a cross beam and a top beam. The cross beam is located between the two supporting columns which are connected in the left-right direction, first sleeve rods are arranged at the two ends of the lower portion of the cross beam, first sleeve bases matched with the first sleeve rods are arranged on the two opposite sides of the two supporting columns which are connected in the left-right direction, and the first sleeve rods are inserted into the first sleeve bases; shearing frames are arranged between the two connected cross beams and between the two supporting columns connected front and back, connecting bases are arranged on the cross beams and the supporting columns, and each end of each shearing frame is detachably connected with the corresponding connecting base through a bolt; the supporting column, the cross beam, the top beam, the shearing frame, the cross beam, the adjustable supporting rod and the telescopic rod can be disassembled and assembled, a worker can disassemble and maintain the supporting structure conveniently in the later period, a spiral inserting rod is inserted into the position below the earth surface, and therefore the whole device is more stable.
Owner:HUNCHUN MINING (GROUP) CO LTD
Variable-stiffness gradient energy absorption component for roadway support and mounting method of variable-stiffness gradient energy absorption component
The invention discloses a variable stiffness gradient energy absorption component for roadway support and an installation method, the variable stiffness gradient energy absorption component for roadway support comprises: stand columns arranged on two sides of a roadway, the upper ends of the stand columns being provided with a jacking mechanism; the brackets are arranged between the stand columns on the two sides and connected with the stand columns through connecting plates, and the adjacent brackets are further connected through third elastic pull rods; the buffer mechanism is rotationally mounted on the bracket and is connected with the stand column through a first elastic pull rod; the supporting anchor rod comprises a connecting pipe installed on the buffering mechanism, the connecting pipe is connected with a cushioning pipe, and the cushioning pipe is connected with an energy absorption pipe. The first rotating base rotates at the lower end of the connecting pipe and is connected with the stand column through a second elastic pull rod.
Owner:YANGMEI GRP SHOUYANG KAIYUAN MINING CO LTD
Roadway tunneling support forepoling protection mechanism
ActiveCN222615361Uavoid damageachieve protectionHydro energy generationProps/chocksElectric machineryStructural engineering
The utility model relates to the technical field of roadway tunneling supports, and discloses a roadway tunneling support forepoling protection mechanism which comprises a first protection net frame, two symmetrical fixing blocks are arranged at one end of the first protection net frame, protection mechanisms are arranged on the faces, close to each other, of the two fixing blocks, and a second protection net frame is arranged at the bottom of the first protection net frame. Adjusting mechanisms for adjusting the position of the second protective net frame are arranged at the two ends of the second protective net frame, a driving device for driving the adjusting mechanisms is arranged at one end of one fixing block, and each adjusting mechanism comprises two symmetrical mounting blocks fixed to the bottom of the first protective net frame. When the motor runs, the first bevel gear can drive the first lead screw to rotate, the first sliding block can drive the second protection net frame to move, the length of the second protection net frame can be adjusted, and then the effect of automatically adjusting the length area of the first protection net frame is achieved.
Owner:SHAANXI JINYUAN ZHAOXIAN MINING CO LTD
Tunnel trolley supporting system and method intelligently adapting to geological conditions
The invention discloses a tunnel trolley supporting system and method intelligently adapting to geological conditions, and belongs to the technical field of tunnel safety supporting. The device comprises a supporting truss, a rigid supporting mechanism and a flexible supporting mechanism. Wherein the flexible supporting mechanism comprises an air bag which is used for preliminarily supporting the surrounding rock of the tunnel; the rigid supporting mechanism comprises a mounting frame, a plurality of air chambers are arranged in the mounting frame, and adjusting assemblies are arranged in the air chambers; the adjusting assembly comprises a piston plate and a piston rod located on the piston plate, and the free end of the piston rod penetrates through the mounting frame, then extends into the air bag and is connected with a supporting plate. The supporting plates are used for carrying out secondary supporting on the tunnel surrounding rock from the interior of the air bag, the supporting pressure of each supporting plate can be adjusted through the inflation pressure in the corresponding air chamber so as to adapt to different geological conditions, good self-adaptive capacity is achieved, and dynamic distribution of the surrounding rock pressure is achieved.
Owner:CHINA MCC17 GRP CO LTD
Mine roadway temporary supporting equipment and supporting method thereof
Owner:JINCHUAN GROUP NICKEL COBALT CO LTD
Movable underground tunneling supporting device
The utility model discloses a movable underground tunneling supporting device, which belongs to the technical field of coal mine tunneling supporting devices and comprises supporting vertical plates oppositely arranged on two sides, the upper ends of the supporting vertical plates on the two sides are detachably connected with supporting semi-arc plates, and the bottoms of the supporting vertical plates on the two sides are detachably connected with universal wheels. Fixing assemblies are installed at the bottoms of the supporting vertical plates on the two sides, the supporting device is fixed to the original position through the fixing assemblies, inner concave faces are arranged on the outer walls of the supporting semi-arc plates on the two sides, semi-arc air cushions are detachably connected to the interiors of the inner concave faces on the two sides, air exists in the arranged semi-arc air cushions, the surfaces of the semi-arc air cushions are stressed and deformed when broken stones fall down, and therefore the broken stones are prevented from falling off. Large resilience force cannot be generated, impact force of broken stones can be buffered and then fall down towards the two sides, and therefore the situation that workers are injured due to the fact that the broken stones bounce up can be avoided.
Owner:JULISHAN MINE OF HENAN COKING COAL ENERGY CO LTD
High-crustal-stress phyllite sand-included slate interaction stratum tunnel water inrush prevention construction method
PendingCN119435033AImprove efficiencyquality improvementUnderground chambersHydro energy generationPipeSteel tube
The invention belongs to the technical field of tunnel construction and underground engineering, and particularly relates to a high-ground-stress phyllite and sand slate interaction stratum tunnel water inrush prevention construction method which comprises the following steps that S1, a tunnel face is excavated in an upper step of a tunnel, a drainage hole is drilled, and a drainage steel pipe is buried for pressure relief; s2, a steel pipe is constructed to compact the weak rock mass, and the connecting tension of the net spraying concrete is increased; s3, constructing a self-drilling pipe shed at the arch part, and grouting to form a forepoling system; s4, core soil is reserved for mechanical excavation, and a crushing head is adopted for auxiliary excavation; s5, an upper step temporary inverted arch is constructed in time after excavation, reinforcing locking feet are constructed on arch feet on the two sides and side walls, and grouting is conducted; s6, the left side and the right side of the lower step are staggered and asymmetrically excavated and supported, and the excavation circulation footage is not larger than 2 m; and finally, the inverted arch is formed through one-time excavation, and the excavation circulation footage is not larger than 3 m. The pressure of large rheological deformation formed by water inrush is reduced, large rheological deformation of the soft rock non-uniform interaction stratum is controlled, and the construction efficiency and progress are improved.
Owner:CHINA RAILWAY NO 2 ENG GROUP CO LTD
Assembled adjustable supporting and protecting mechanism for tunnel excavation
PendingCN119412127Aincrease contact areaGuaranteed carrying capacityMine roof supportsProtective coversArchitectural engineeringStructure support
The invention discloses an assembly adjustable tunnel excavation supporting protection mechanism, relates to the technical field of tunnel supporting structures, and solves the problems that a supporting plate for protecting a tunnel needs to bear very large downward pressure, the supporting plate is easily damaged and even fractured during protection, and the protection capability is affected. The assembled adjustable tunnel excavation supporting mechanism comprises a tunnel body, a supporting bottom plate, a vertical lifting mechanism and an adjustable excavation supporting mechanism, and the supporting bottom plate is installed at the inner bottom of the tunnel body. According to the supporting structure, it is guaranteed that the side supporting plates and the supporting plates assembled on the side faces of the side supporting plates can tightly abut against the inner wall of the tunnel, gaps and other problems cannot be generated, the supporting contact area of the tunnel is increased, and meanwhile the supporting bearing capacity of the inner wall of the tunnel can be guaranteed. And meanwhile, the side supporting plates, the sliding rods arranged at the bottoms of the side supporting plates, the external columns and the upper supporting plate can form triangles, it is guaranteed that the problems of breakage and the like cannot occur when the tunnel is supported, and safety is higher.
Owner:XINHUA RUOQIANG PUMPED STORAGE POWER GENERATION CO LTD
Automatic continuous laying device and laying method for coal mine tunneling roadway roof flexible net
The invention discloses an automatic continuous laying device for a flexible net of a coal mine tunneling roadway roof and a net laying method, and belongs to the technical field of coal mine roadway supporting. The device comprises a cantilever type fully-mechanized excavating machine, a top beam, a telescopic beam, a protection plate and a flexible net storage bin, and dynamic adjustment of the height and the pitch angle of the top beam is achieved through a supporting stand column lifting oil cylinder and an adjusting oil cylinder; different top plate inclination angles are adapted; the telescopic beam is driven by a telescopic oil cylinder to extend forwards to the coal wall, the flexible net is driven to be laid along the surfaces of the protection plate, the telescopic beam and the top beam, and the protection plate is overturned to be attached to the coal wall to achieve double protection of the top plate and the coal wall. The net laying method comprises the steps of top beam pre-adjustment in the cutting stage, telescopic beam net laying and top contact in the temporary supporting process, permanent supporting anchor rod fixing net pieces and continuous releasing of the flexible net with an anchoring point as a fulcrum in the reset stage. Integrated operation of cutting, supporting and net laying is achieved, automatic continuous net laying is achieved, linkage control is formed among all procedures, the applicability to roadway coal wall supporting is good, and the net laying operation efficiency is high.
Owner:CHINA UNIV OF MINING & TECH +1
Coal mine tunnel supporting device
ActiveCN222350732Utimely maintenanceImprove reliabilityMining devicesProtective coversArchitectural engineeringScrew thread
The utility model relates to the technical field of coal mine tunnel protection, and discloses a coal mine tunnel supporting device which comprises a positioning seat, an alarm type supporting mechanism is arranged at the top of the positioning seat and comprises an auxiliary supporting piece, a threaded rod is in threaded connection with the inner wall of the auxiliary supporting piece, and the threaded rod is in threaded connection with the positioning seat. A lifting table is rotationally connected to the top of the threaded rod, a sliding rod is welded to the bottom of the lifting table, and the outer wall of the sliding rod is slidably connected with the inner wall of the auxiliary supporting piece. Through the design of the threaded rod, the top of the rubber block can be attached to the bottom of the arc-shaped top plate by rotating the threaded rod, if the arc-shaped top plate deforms, pressure is applied to the pressure sensor through the rubber block, and after the pressure value monitored by the pressure sensor is larger than a preset value, the audible and visual alarm is immediately controlled to work; and an acousto-optic alarm is given to prompt a user, so that the user is supervised to maintain the arc-shaped top plate in time, and the problem of causing larger accidents is avoided.
Owner:XIAOYUN COAL MINE JINING MINING IND GRP CO LTD
Tunnel tunneling self-adaptive temporary supporting device based on modular assembly
The invention relates to the technical field of roadway supporting, in particular to a roadway tunneling self-adaptive temporary supporting device based on modular assembly. Comprising a supporting base used for supporting all assemblies arranged on the supporting base, a side wall supporting device used for supporting the two sides of a roadway, a top supporting device used for supporting the top of the roadway, a first driving device and a second driving device, wherein the first driving device and the second driving device are used for driving the side wall supporting device and the top supporting device respectively. The number of the side wall protection devices is two, and the two side wall protection devices are symmetrically arranged on the left side and the right side of the supporting base. The side wall and the top of the roadway in the tunneling process are supported at the same time through the integrated side wall supporting device and the top supporting device, comprehensive supporting of the top and the side wall of the roadway is achieved, the possibility of local collapse is reduced, and construction safety is improved.
Owner:HENAN SHENHUO XINGLONG MINING CO LTD +1
Temporary supporting device for coal mine tunneling
The invention discloses a temporary supporting device for coal mine tunneling. The temporary supporting device comprises three front probing beams with the size of phi 80 * 5200 mm; 9 hanging rings, W-shaped steel belts, back top bamboo clamping plates and wood wedges; nine hanging rings are fixed to the first three rows of permanent support anchor rods close to the head-on top, and then a front canopy of phi 80 * 5200 mm penetrates through the hanging rings; a W-shaped steel belt is transversely laid on the forepoling bar of phi 80 * 5200 mm, and then a back top bamboo clamping plate is longitudinally laid on the W-shaped steel belt; a wood wedge is used for firmly jacking the top bamboo clamping plate; during operation, all personnel operate in a permanent support completed roadway, and anchor rod cable construction operation is carried out on the head-on face of a working face row by row.
Owner:XINJIANG BAYI IRON & STEEL CO LTD
Protective device for safety of mining machinery
The invention discloses a protective device for safety of mining machinery, and relates to the technical field of mining equipment, in particular to a protective device for safety of mining machinery, which comprises a base, a rotating frame, a protective component and a supporting component, and a plurality of iron chisels used for being inserted underground are fixedly mounted on the lower surface of the base; the lower end of the rotating frame is hinged to one end of the base; and through the combination of multi-stage damping and elastic buffering, the absorption capacity to large impact force is greatly improved. When the impact force continuously acts to cause the first piston plate to move to a set distance, the distance sensor transmits a signal to the control panel, and the control panel starts the electromagnet, so that the magnetic particles in the magnetorheological fluid are orderly arranged in a solid-like state, the position of the piston assembly is locked, excessive rotation of the rotating frame is avoided, and the service life of the rotating frame is prolonged. Compared with a locking block clamping structure of an existing device, the locking block clamping structure has higher fixing reliability, the situation that the structure loses efficacy due to continuous impact is effectively prevented, and safety of mining machinery is guaranteed.
Owner:LUZHOU IND TECHNICAL SCHOOL
Method for caving top coal in front of coal face frame
The invention belongs to the field of coal mining, and particularly discloses a coal mining method for caving top coal in front of a coal face frame, which comprises the following steps of: S1, extending a telescopic beam to a coal wall support top plate, paving a metal net along a coal wall, and binding and connecting the metal net with a hydraulic support side protection plate to form a metal net false top; s2, a hydraulic support side protection plate above a front roller of the coal mining machine is contracted in advance, a coal seam at the bottom of the working face is cut according to the mining and caving ratio, and a coal caving opening is located at the front end of a hydraulic support telescopic beam; s3, the top coal seam is slowly released to a scraper conveyor to be conveyed out under the shielding action of a metal net and a hydraulic support side protection plate by stretching out and retracting a hydraulic support telescopic beam front and back; the coal discharging port is located in front of the support, top coal is slowly discharged to the scraper conveyor to be conveyed out from the side protection plate in front of the telescopic beam under the shielding effect of the laid metal net false roof, and the method has the advantages of being high in coal resource recovery rate, simple in construction organization and high in hydraulic support applicability.
Owner:莫春虎
Underground metal mine mining roof supporting device and mounting method
The invention relates to the technical field of protective equipment, in particular to an underground metal mine mining roof supporting device and an installation method.The underground metal mine mining roof supporting device comprises detachable telescopic supports, a plurality of first sliding blocks are arranged on the left detachable telescopic support and the right detachable telescopic support at intervals from front to back, a cylinder is installed on each first sliding block, and a piston rod is slidably connected into each cylinder; supporting plates are connected to the piston rods through bolts, telescopic top beams are hinged between the two supporting plates which correspond to each other left and right, a left supporting piece and a right supporting piece are connected to the telescopic top beams in a sliding mode, and the supporting pieces are hinged to the first sliding blocks on the same sides. Each supporting plate can independently ascend and descend, each telescopic top beam can independently swing to adjust the angle where the supporting plate is located, and each telescopic top beam can independently stretch and retract to be adjusted so as to adapt to supporting of uneven mine tunnels, the effect of flexible adjustment can be achieved, and therefore the supporting device can adapt to the mine tunnels of different sizes and different shapes; therefore, the risk of local stress concentration can be reduced, and the mining supporting effect is improved.
Owner:CENT SOUTH UNIV +1
Device for coal mine open-off cut supporting
The utility model relates to the technical field of coal mining, and discloses a device for supporting a coal mine open-off cut, which comprises inverted U-shaped supporting components arranged in a coal mine open-off cut roadway, and each inverted U-shaped supporting component forms a vertical support when being mounted in the coal mine open-off cut roadway; the multiple sets of locking connecting pieces are arranged, each set of locking connecting pieces comprises two locking connecting pieces, and the two locking connecting pieces are detachably installed between every two adjacent sets of inverted-U-shaped supporting assemblies; and the top supporting pieces are installed on the two corresponding locking connecting pieces respectively, all the top supporting pieces are arranged in parallel, and after each top supporting piece is installed on the two corresponding locking connecting pieces, horizontal supporting is formed on the top of the coal mine open-off cut roadway. According to the utility model, after the plurality of top support pieces form horizontal support at the top of the open-off cut roadway, the falling of broken stones or muck at the top of the open-off cut roadway can be avoided, so that the safety of operating personnel in the roadway is effectively ensured.
Owner:INNER MONGOLIA KAILUAN HONGFENG COAL CO LTD
Tunnel construction protection device
The present invention is applicable to the technical field of tunnel construction, and provides a tunnel construction protection device, including a supporting cross plate and a side support frame, the side support frames are arranged in pairs on both sides of the supporting cross plate, a guide sleeve is fixedly installed on the upper surface of the supporting cross plate, the free end of the guide sleeve is fixedly connected with an arc-shaped support plate, the longitudinal adjustment mechanism moves synchronously with the arc-shaped support plate when it is raised or lowered, the synchronous drive mechanism is connected to the movable vertical rod, the horizontal adjustment mechanism is arranged on both sides of the side support frame, the top end of the horizontal adjustment mechanism is transmission-connected with the synchronous drive mechanism, and moves synchronously with the synchronous drive mechanism during the rotation process, so as to adjust the position of the support protection; the protection device is convenient for supporting and protecting the inner wall of the tunnel from multiple directions, and has the characteristics of high stability during the support and protection process, can effectively avoid the loosening of the structure, and can prevent the occurrence of crushing during protection, thereby improving the safety of the protection device.
Owner:山西省交通新技术发展有限公司 +1
Airborne temporary support device with cannon head protection function
The invention provides an onboard temporary supporting device with a cannon head, and relates to the technical field of engineering machinery, the onboard temporary supporting device comprises a rack, a cutting arm is arranged on the rack, a first multi-stage telescopic arm and a second multi-stage telescopic arm are arranged on the cutting arm, a supporting frame is arranged on the first multi-stage telescopic arm, and a second multi-stage telescopic arm is arranged on the second multi-stage telescopic arm. The first multi-stage telescopic arm is used for driving the supporting frame to ascend and descend, a plurality of first hydraulic hoses are arranged on the supporting frame, a protection plate is arranged on one side of the second multi-stage telescopic arm, the second multi-stage telescopic arm is used for adjusting the position of the protection plate, and a cannon head is arranged on one side of the cutting arm. More uniform supporting force can be provided for the outer wall surface of the top surface of the roadway, the supporting effect is improved, and the probability of accidents is reduced.
Owner:ZOUCHENG YANKUANG TAIDE IND & TRADE CO LTD
Digging, anchoring and protecting equipment based on intelligent sensing technology
The invention discloses digging, anchoring and protecting equipment based on an intelligent sensing technology, relates to the technical field of digging, anchoring and protecting equipment, and solves the problem that efficiency is low during digging operation due to the fact that long time is needed for building operation of a supporting structure. And meanwhile, the problem that the safety of workers is difficult to guarantee when the workers enter to build the supporting structure is solved. The digging, anchoring and protecting equipment based on the intelligent sensing technology comprises two mounting bases, integrated folding equipment and a supporting assembly. According to the tunneling and anchoring device, the rotating angle can be detected through the multifunctional sensor, automatic rotating operation of the upper supporting plate and the lower supporting plate is achieved, it is guaranteed that the top of the tunneling and anchoring device can be automatically protected while tunneling operation is conducted on a tunnel, and damage to the tunneling and anchoring device caused by rock and soil of the tunnel is reduced. And meanwhile, when the supporting operation of the tunnel is automatically and intelligently completed, the efficiency of tunneling the tunnel can be improved.
Owner:HENAN XINZHENG COAL & ELECTRICITY
Coal mine tunnel supporting structure
The utility model discloses a coal mine tunnel supporting structure which comprises two supporting loop bars. The lifting rod is connected to the interior of the supporting sleeve rod in a sliding manner; the top plate is arranged at the upper end of the lifting rod; the positioner is arranged on the outer side of the upper end of the supporting sleeve rod; the protective net and the two fixers are arranged on the two sides of the outer end of the top plate respectively. According to the coal mine tunnel supporting structure, the top of the coal mine tunnel is supported through the top plate, the width of the top plate can be adjusted so that the top plate can be matched with the width in the coal mine tunnel, the top plate is supported through the supporting sleeve rod and the lifting rod, and the supporting sleeve rod can slidably ascend and descend in the lifting rod; after the supporting sleeve rod is lifted to a proper position, the position of the supporting sleeve rod can be fixed through the positioner; the protective nets are arranged on the two sides of the outer end of the top plate correspondingly, falling rocks on the top of the coal mine roadway are blocked through the protective nets, and the situation that people in the roadway are injured by the falling rocks is avoided.
Owner:SICHUAN PROVINCE CHUANNAN COAL CO LTD
Protective plate for mining
ActiveCN222558591Uchange angleImprove the protective effectSafety equipmentsProtective coversMining engineeringSlide plate
Owner:SHANXIAN FENGYUAN IND CO LTD
Anti-collapse supporting device for tunnel construction
The anti-collapse supporting device for tunnel construction is characterized in that two cross beam rods are arranged, the four corners of the side walls of the bottoms of the two cross beam rods are each fixedly connected with a supporting column, a placement base is arranged at the bottoms of the supporting columns and is of a trapezoidal structure, and the side wall of the side, away from the supporting columns, of the placement base is fixedly connected with an anti-skid damping rubber pad; the device has the following advantages that when the ground is uneven, the corresponding rotating disc is rotated according to the inclined direction, the supporting column is driven to ascend and descend according to the threaded connection principle, and therefore the whole device is adjusted to be in the horizontal state; in this way, it can be guaranteed that the top of the tunnel is effectively supported, the situation that the supporting effect is affected by uneven stress caused by inclination is avoided, adjustment can be achieved by rotating the adjusting studs, cutting or welding extension does not need to be conducted on equipment, the application flexibility of the equipment is greatly improved, and the time needed for building is shortened.
Owner:CHINA RAILWAY 15TH BUREAU GROUP CORPORATION LIMITED +1
Airborne temporary supporting device
The utility model provides an onboard temporary supporting device which comprises a supporting frame and supporting columns, the number of the supporting columns is two, the supporting columns are arranged on the two sides of a cutting arm of a heading machine respectively and rotationally connected with the cutting arm, and the ends, away from the heading machine, of the two supporting columns are rotationally connected with the supporting frame through two connecting bases respectively. Buffering assemblies are arranged on the two sides of the top face of the supporting frame respectively, a displacement assembly capable of moving in the tunneling direction of the tunneling machine is arranged at the front end of the supporting frame, and overturning assemblies allowing the supporting columns and the supporting frame to be overturned are arranged on the two supporting columns. The device is easy to operate and good in supporting effect, the buffering effect can be effectively achieved when coal mine rockfall occurs, and the service life of the supporting device can be effectively prolonged.
Owner:GUIZHOU YONGGUI ELECTROMECHANICAL MFG & REPAIR CO LTD
Anchor cutting and net breaking system and anchor cutting and net breaking method for roadway roof of fully-mechanized top coal caving working face
The invention provides an anchor cutting and net breaking system and method for a fully mechanized top coal caving face roadway roof, the anchor cutting and net breaking system comprises an end support unit, an anchor cutting device and a net breaking blade, the anchor cutting device comprises a water jet cutter mechanical arm and a water jet cutter head, and the water jet cutter head is installed on the water jet cutter mechanical arm; the water jet cutter head is used for cutting the anchor net on the periphery of the anchorage device, cutting the anchorage device at an angle inclined to the roadway top plate and cutting from one side of the roadway top plate to the other side of the roadway top plate so as to form a coherent transverse notch for the anchor net; and the net breaking blade cuts the anchor net to form coherent longitudinal notches, and the continuously formed longitudinal notches continuously break the anchor net between the transverse notches from the middle, so that the anchor net is completely broken. The anchor cutting and net breaking device can comprehensively cut off the anchor on the roadway roof and completely break the anchor net on the roadway roof, the anchor cutting and net breaking efficiency is high, and the problem that the anchor net is hooked after the anchor is cut off can be avoided.
Owner:ZHENGZHOU COAL MINING MACHINERY (GRP) CO LTD +1