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139results about "Propulsion" patented technology

Roadheader and cutter head therefor

A transverse cutter head for a mining machine has an outer surface including a plurality of cutting tools. Tips of the plurality of cutting tools define a virtual contour line when viewed in a cutter boom longitudinal direction and a rotation of the cutter head is considered. The contour line is formed by at least four sections, namely a first section, a second section, a third section and a fourth section. The four sections are located adjacently in this order, wherein the first section is located closest to the cutter boom and the fourth section forms a side wall cutting area. The first section and / or the fourth section run substantially straight. Each one of the first section, the second section, and the third section has a pitch angle different from the pitch angle of the other two sections. A roadheader having such a cutter head is also provided.
Owner:SANDVIK MINING & CONSTR GMBH

A protective device for coal mining collection and a method of using the same

The application discloses a kind of protective devices for coal mining and its use method, including support seat, the left side of the support seat is fixedly connected with connecting box, the inner cavity of the connecting box is provided with cylinder, the output end of the cylinder is penetrated to the outside of connecting box and is fixedly connected with first locating plate.The application is used for stably supporting coal mining machine by support seat, through the cooperation of cylinder, first locating plate, first movable rod, second movable rod, gear teeth and second locating plate, the second locating plate and the first locating plate are in contact with coal mining machine, and then the positioning of coal mining machine is completed, the stability of coal mining machine during operation is ensured, the situation of coal mining machine falling is effectively improved, and the problem that the coal mining machine is directly placed on the protective plate during use without positioning treatment, so that the coal mining machine will slowly shift due to vibration during operation, and then the situation of falling and failure will occur, thereby the entire coal mining work will be interrupted.
Owner:ORDOS TENGYUAN COAL CO LTD

Automatic haulage system for coal mining machine

The present application relates to a kind of automatic tow cable system of coal mining machine, the space in cable trough is divided into three layers by layered board assembly, the lower part of tow cable trolley and bundle cage tow rope device is located in middle layer and can only reciprocate along the length direction of cable trough, bundle cage tow rope device is fixed relative to coal mining machine, steel wire rope is threaded along the length direction of cable trough, one end of steel wire rope is wound around the fixed pulley at the head of scraper conveyor, changes direction and then connected with bundle cage tow rope device, the other end is wound around the fixed pulley at the tail, then wound around the movable pulley of tow cable trolley, changes direction again, then returns to the tail and is fixed, cable clamp plate group is connected on coal mining machine at one end, is fixed at the head at the other end, middle part is wound around the roller of tow cable trolley and passes through bundle cage along the length direction of cable trough, the relative position of head and tail can be interchanged.The present application does not need external input power, with guide, upper layer cable clamp plate group will not fall, steel wire rope will not be thrown out, and safety is good.
Owner:SHANGHAI BRANCH TIANDI SCI&TECH CO LTD +1

A short-body roadheader for coal mine tunneling

The application discloses a short-body fully-mechanized excavator for coal mine tunneling, which comprises a rack, a walking part, a shovel plate part, a cutting part and a conveyer scraper; the rack is connected with the track assembly of the walking part through a rotating mechanism; the cutting part comprises a folding cutting arm and a transverse shaft type cutting head; one end of the cutting arm is hinged to the rack, and the other end of the cutting arm is fixed with the cutting head; the shovel plate part is connected to the front end of the rack; one conveyer scraper passes through and is arranged on the track assembly; the front end and the tail end of the conveyer scraper extend to the front end of the rack and the tail end of the rack respectively. Advantages: the body is greatly reduced compared with the conventional machine type, and is suitable for narrow lane, sharp turning, continuous mining and continuous charging working face branch lane frequent opening scene; through the adjustment of the coal conveying direction of the conveyer scraper, the rack rotation and the linkage of the cutting arm, the rapid opening operation and continuous transportation of the lane are realized, and the construction efficiency is greatly improved.
Owner:INNER MONGOLIA GREEN MINE TECH CO LTD

Control method, device and system of coal mining machine traction system

The present disclosure relates to a control method, device and system of a coal mining machine traction system, belonging to the field of coal mining machines. The method is applied to a controller in the coal mining machine traction system. The method comprises: detecting the voltage value of a DC bus in real time; in response to the voltage value being lower than a first preset threshold, obtaining voltage fluctuation information within a preset time period; determining the predicted duration of DC bus under-voltage according to the voltage fluctuation information, and comparing it with a first target duration; in the case where the predicted duration is determined to be less than the first target duration, controlling the output frequency of the frequency converter according to the voltage fluctuation information to perform PID adjustment on the speed of the traction motor, thereby controlling the traction motor to generate power at a reduced speed and feeding the generated power of the traction motor back to the DC bus through the inverter module to maintain the voltage of the DC bus. The robustness of the coal mining machine traction system under under-voltage conditions is ensured, and the reliable production of the coal mining machine traction system is guaranteed.
Owner:SHANGHAI TIANDI MINING EQUIP TECH CO LTD +1

Compact wheel loader with long arm

A long arm type compact wheel bucket excavator relates to mechanical equipment for open pit mining, comprising a supporting mechanism, a bucket wheel driving mechanism, a discharging arm rotating mechanism, a crawler walking mechanism and a tensioning mechanism, the discharging arm rotating mechanism comprising a main machine walking mechanism, a supporting base assembly, a rotating platform assembly and an adjusting plate assembly; the supporting base assembly comprising a central pipe vertically fixed on the main machine walking mechanism and a mounting seat fixed on the central pipe; the rotating platform assembly comprising a rotating platform rotatably supported on an L-shaped beam; the adjusting plate assembly comprising an adjusting plate body, a lower connecting shaft slide way symmetrically arranged on both sides of the adjusting plate body and an upper connecting shaft slide groove symmetrically arranged on the other two sides of the adjusting plate body, the guide directions of the lower connecting shaft slide way and the upper connecting shaft slide groove being perpendicular to each other. The wheel bucket excavator does not need to additionally set a reclaimer and will not generate triangular coal, and has the advantages of good stress characteristics, good safety and the like.
Owner:CCTEG SHENYANG ENG CO

Suspended roof cutting device for fully mechanized coal mining face of coal mine

The utility model relates to the technical field of coal mine mining pressure prevention and control, in particular to a coal mine fully mechanized coal mining face suspended roof cutting device which comprises an installation bin, a cutting wheel and a clamping unit, and the clamping unit comprises a fixing base, a clamping plate shaft, a square column, a square bin, a rotating shaft, an installation frame, an air cylinder, a rotating base, a power assembly and a lifting assembly. The clamping plate penetrates through the square column to make contact with the clamping plate shaft, the controller is clicked to start the air cylinder, the air cylinder abuts against the rotating base to be close to the rotating shaft till the square column and the square column are matched, at the moment, the rotating base plays a role in abutting against the rotating shaft and can also be matched with the cutting wheel to rotate, and the dismounting mode is opposite to the mounting mode; and the lifting assembly is used for adjusting the height of the mounting bin, so that the cutting wheel is quickly mounted in this way, the time consumed for mounting the cutting wheel is shortened, the workload of workers is reduced, and the working efficiency of the workers is improved.
Owner:邢萌

Caterpillar track type heading machine

The utility model provides a caterpillar track type heading machine, and relates to the technical field of heading machines. The caterpillar track type walking mechanism is connected with the heading machine main frame body, and the caterpillar track type walking mechanism is used for driving the heading machine main frame body to move; the caterpillar track type walking mechanism comprises a pre-laid caterpillar track, a pre-laid caterpillar track and a pre-laid caterpillar track, the chain wheels are rotatably arranged on the heading machine main frame body, the chain wheels are meshed with the pre-paving chain track, and the chain wheels are used for walking on the pre-paving chain track so that the heading machine main frame body can move relative to the bottom face of the roadway. According to the technical scheme, the chain wheel walks on the pre-laid chain track, so that the main frame body of the heading machine moves relative to the bottom surface of a roadway. Compared with a crawler-type heading machine, the caterpillar track type heading machine can climb under the large-gradient working condition of 30 degrees or above, is good in stability, overcomes the technical bottleneck that an existing heading machine cannot climb on the large gradient, and is beneficial to reducing potential safety hazards and improving the heading efficiency.
Owner:SANY HEAVY EQUIP CO LTD +1

Intelligent propelling system of coal mine drilling machine based on self-adaptive control technology

The invention discloses a coal mine drilling machine intelligent propelling system based on the self-adaptive control technology. The coal mine drilling machine intelligent propelling system comprises a main control unit, a power switching module, a first driving assembly, a second driving assembly and a feedback collecting module. The main control unit receives state information of the drilling machine host and dynamically adjusts the power switching module in combination with data of the environment sensing module so as to accurately control the two driving assemblies. The system monitors working conditions in real time through a rock stratum stress sensor and a temperature sensor, optimizes operation parameters, and guarantees equipment safety through a safety protection module and an alarm prompt module. The remote interaction module supports wireless data interaction, and the intelligent level is improved. According to the invention, the adaptability, response speed and operation precision under complex geological conditions can be improved, and the problem of insufficient intelligence of a traditional propulsion system is solved.
Owner:CCTEG CHINA COAL RES INST +1

A vertical cutting oscillating jacking device and mining device suitable for steeply inclined thin veins

The application provides a vertical cutting swing roof supporting device and mining device suitable for steeply inclined thin ore veins, and belongs to the technical field of mine vertical mining. The vertical cutting swing roof supporting device suitable for steeply inclined thin ore veins comprises a cutting mechanism, a supporting mechanism, a swing hinge point pin shaft, a cutting swing oil cylinder, a vertical roof supporting mechanism and a vertical bottom supporting mechanism. The application combines the occurrence characteristics and mining technical conditions of steeply inclined thin ore veins, carries out research on the related vertical cutting swing roof supporting device and mining device, discusses the use conditions and range of the ore deposit, changes the current situation of the mining device and process of steeply inclined thin ore veins in mines, realizes efficient, safe and economic mining in mines, and achieves the purpose of improving the ore grade of steeply inclined thin ore veins, reducing ore dilution and improving the economic benefits of mines.
Owner:SHANXI TIANDI COAL MINING MACHINERY +1

A continuous operation system for coal mining machines

This invention relates to the field of coal mining machine technology, and provides a continuous operation system for a coal mining machine. The continuous operation system includes a coal mining machine, a conveyor, and supports. The supports include telescopic components that can drive the conveyor to extend and retract. The telescopic components can move the conveyor along the width direction of the machine body. Multiple supports are arranged sequentially along the length direction of the machine body. The continuous operation system has a working state and a waiting state. In the working state, the conveyors are arranged side-by-side in a row on the working face, and the coal mining machine moves along a slide rail to mine coal. In the waiting state, the coal mining machine mines coal at the starting positions at both ends of the working face, and the supports adjust the conveyor to move to the next working face. The continuous operation system for a coal mining machine according to this invention has advantages such as flexible deployment and efficient switching, realizing rapid transfer of equipment between working faces and automatic track reconstruction.
Owner:SHANXI TIANDI COAL MINING MACHINERY +1

A detachable inverted U-shaped oil tank structure

The embodiment of the application provides a detachable inverted U-shaped oil tank structure, and relates to the technical field of oil tank structure. The detachable inverted U-shaped oil tank structure comprises an oil tank body assembly, the oil tank body assembly is made through welding and is in an inverted U-shaped structure, two groups of connecting sleeves are inlaid and welded between the top and the bottom of the oil tank body assembly, mounting screws are arranged in each group of connecting sleeves, a positioning pin is arranged at the bottom of the oil tank body assembly, a central small hole is formed in the positioning pin for lubricating oil to pass through, and the oil tank body assembly is fixed on a walking part of a coal mining machine through the positioning pin and the two groups of mounting screws. The positioning pin and the mounting screws are used for conveniently disassembling and assembling the oil tank body assembly, the inlaid and welded connecting sleeves prevent oil leakage, the inverted U-shaped structure avoids a long silk rod and has a lubricating oil dripping function of adjusting the flow rate of lubricating oil, and therefore the maintenance convenience, the work efficiency and the safety and reliability of equipment operation are improved.
Owner:SHANGHAI CHUANGLI GRP

A high-pressure foam injection type wheeled high-frequency projectile device

The utility model provides a kind of high-pressure foam injection type wheeled high-frequency projectile device, it is related to civil engineering machinery and equipment field, and it includes: tracked chassis, the top of tracked chassis is provided with support pedestal;Hydraulic control unit, is arranged in one end of support pedestal top;Gas pressurizing unit, is arranged in one side of hydraulic control unit;Foam delivery unit, is arranged in one side of gas pressurizing unit;Electric excitation unit, is arranged in one side of foam delivery unit;Six-in-one wheeled reaction chamber array, is arranged in one side of electric excitation unit;Projectile loading unit, is arranged in one side of six-in-one wheeled reaction chamber array;Projectile acceleration gun barrel, is arranged in one side of projectile loading unit.The utility model is through six-in-one wheeled disc type ultrahigh-pressure foam reaction chamber array and automatic reset system, substantially reduce operation cycle, improve firing frequency, reduce artificial intervention interruption, make high-frequency continuous operation ability complete breakthrough.
Owner:HOHAI UNIV

Vertical feeding thin seam coal mining system

The invention provides a vertical feeding thin seam coal mining system, which comprises a coal mining machine, a conveyor, a top plate support frame, a traction device and a controller, a cutting roller of the coal mining machine comprises a cylinder body, an end cover and a plurality of cutting teeth, the end cover is provided with a middle area and an annular edge area, and the middle area is arranged far away from a coal mining working face relative to the annular edge area; the conveyor is arranged on the side, away from the coal face, of the coal mining machine and provided with a guide rail, and the coal mining machine is slidably connected with the guide rail. A propelling device is connected between the top plate supporting frame and the conveyor and used for pushing the conveyor and the coal mining machine towards the coal face. The traction device comprises a traction chain and a traction driver, the traction chain is connected to the coal mining machine, and the traction chain is in transmission connection with the traction driver so as to drive the coal mining machine to move along the guide rail; the controller is used for regulating the coal mining machine, the conveyor and the traction device to operate. The coal mining efficiency can be improved, and the production cost can be reduced.
Owner:SHANXI TIANDI COAL MINING MACHINERY +1

Intelligent cooperative control system for underground coal mine excavation working face

The invention belongs to the technical field of intelligent mining of coal mines, and discloses an intelligent cooperative control system for an underground mining working face of a coal mine. Whole-process intelligent cooperative control is realized through deformation monitoring of the scraper conveyor, actual geometric morphology construction, reference drift tensor field calculation, dynamic correction of a coal cutting track, abnormal recognition of a bottom plate and self-adaptive adjustment of control parameters. Identifying a bending deformation section of the conveyor, constructing an actual geometrical shape curve, and calculating a reference drift tensor field of each position of a working surface; performing space coordinate transformation on the original memory coal cutting track of the coal mining machine to generate a corrected target coal cutting track; recognizing a bottom plate fluctuation abnormal area by combining hydraulic support monitoring data, and dynamically adjusting a coal cutter roller lifting control gain and a propulsion speed compensation coefficient; and realizing closed-loop adaptive control by analyzing and identifying a secondary deformation signal and iteratively updating a reference drift tensor field. The bottom plate flatness and the coal seam recovery rate are improved, and equipment abrasion and accident risks are reduced.
Owner:XIAOYUN COAL MINE JINING MINING IND GRP CO LTD

Mechanics for supporting a rock cutting device

A machine for excavating rock includes a frame, a cutting device, and a boom. The cutting device includes a cutting disc having a cutting edge, the cutting disc being rotatable about a cutting device axis. The boom supports the cutting device and includes a first end, a second end, and a boom axis substantially parallel to the cutting device axis. The boom further includes a first portion and a second portion. The first portion is connected to the frame for rotation about a first pivot axis between a raised position and a lowered position. The second portion is connected to the cutting device, and the second portion is pivotable about a second pivot axis between a raised position and a lowered position.
Owner:JOY GLOBAL UNDERGROUND MINING LLC

Intelligent excavating and cutting integrated system based on multi-shaft hydraulic linkage

The invention relates to the technical field of engineering machinery, and discloses an intelligent excavating and cutting integrated system based on multi-shaft hydraulic linkage, the intelligent excavating and cutting integrated system comprises a main bin, moving assemblies, a telescopic assembly, a cutting assembly and an excavating assembly, the moving assemblies are symmetrically arranged on the two sides of the main bin, and the telescopic assembly is hinged to the front end of the main bin; the cutting assembly is arranged at the front end of the telescopic assembly, and the excavating assemblies are symmetrically arranged on the two sides of the cutting assembly. The problems that in the prior art, traditional digging and cutting operation generally needs to be completed through different devices, the device switching process is tedious, a large amount of time and manpower are consumed, the operation efficiency is low, the operation continuity is poor, and the requirement for efficient and continuous operation is difficult to meet are solved.
Owner:LUDONG UNIVERSITY

Thin-wall coal seam coal mining equipment

The invention discloses thin-wall coal seam mining equipment which comprises a hydraulic support, a conveyor, a coal mining machine, a first angle adjusting assembly and a second angle adjusting assembly. The inclination angle of the coal mining machine in the front-back direction of the bottom plate is adjusted through the first angle adjusting assembly to adapt to inclination of the bottom plate in the front-back direction, coal seam loss caused by inclination of the bottom plate can be reduced, and therefore the coal mining efficiency is improved. The inclination angle of the machine body in the left-right direction of the bottom plate is adjusted through the second angle adjusting assembly to adapt to inclination of the bottom plate in the left-right direction, it can be guaranteed that the two cutting rollers can effectively cover the height of the whole coal seam all the time, loss of the coal seam is reduced, and coal mining efficiency is improved. According to the invention, the coal mining machine can adapt to different inclination conditions of the bottom plate, and the cutting roller can better cover a coal seam, so that the waste of coal resources is reduced, the adaptability of the machine to different coal seam conditions is enhanced, and the universality and practicability of the machine are improved.
Owner:SHANXI TIANDI COAL MINING MACHINERY +1

Mining device and mining method suitable for hard ore body

The invention discloses a mining device and a mining method suitable for a hard ore body, and belongs to the technical field of hard coal mining. The device comprises an unmanned mining car, an adjusting mechanical arm is installed on the unmanned mining car, a rotary rock breaking machine is detachably connected to the adjusting mechanical arm, and an ore shoveling bucket is installed on a car head of the unmanned mining car; a buffer assembly is installed at the joint of the adjusting mechanical arm and the rotary rock breaking machine, when the rotary rock breaking machine makes contact with ore for operation, the rotary rock breaking machine moves through a sliding rod and compresses a buffer spring, and then vibration force of the rotary rock breaking machine during ore excavation can be buffered; the vibration force transmitted to the adjusting mechanical arm or the unmanned mining vehicle is reduced, and when the rotary rock breaking machine makes contact with harder rock, the rotary rock breaking machine can be protected, and the service life of the rotary rock breaking machine is prolonged.
Owner:洛宁吉家洼金矿有限公司 +1

Coal cutter walking box assembly and combined coal cutter walking box series

The invention relates to a walking box assembly of a coal mining machine and a combined walking box series of the coal mining machine. The former comprises upper and lower shells and a transition frame. The upper and lower shells are both box structures with a through cavity. A pair of one-axle assembly mounting holes and a pair of two-axle assembly mounting holes are arranged on the front and rear sidewalls of the upper shell. Only a pair of one-axle assembly mounting holes or a pair of one-axle assembly mounting holes and a pair of two-axle assembly mounting holes are arranged on the front and rear sidewalls of the lower shell. The latter comprises walking boxes of the coal mining machine with high, medium and low heights. The walking box with the low height only uses the upper shell. The walking boxes with the medium and high heights simultaneously use the upper and lower shells and the transition frame. The upper shell is detachably fixed on the rear end surface of the traction part shell. The transition frame is detachably fixed below the traction part shell. The lower shell is detachably fixed on the rear end surface of the transition frame. The invention can realize flexible adjustment of the overall height of the walking box and reduce the production cost.
Owner:SHANGHAI TIANDI MINING EQUIP TECH CO LTD

Walking device

The application provides a walking device, comprising: a moving assembly movably arranged along a predetermined track; an oil guiding assembly connected with the moving assembly, lubricating oil being provided into the moving assembly through the oil guiding assembly; a lifting assembly connected with the moving assembly, the lifting assembly being moved by the moving assembly; at least part of the lifting assembly being movably arranged along a vertical direction, a bearing platform being arranged on the lifting assembly, the bearing platform being driven to lift by the lifting assembly. The application solves the problem of the walking device of the coal mining machine in the prior art, which is not easy to lubricate and has low flexibility.
Owner:SHENHUA SHENDONG COAL GRP +1

Mining chain type sawing equipment

The invention discloses mining chain type sawing equipment, and relates to the field of mining mechanical equipment, the mining chain type sawing equipment comprises a crawler walking mechanism, an electrical part, a hydraulic part and a sliding mechanism, the sliding mechanism comprises a sliding seat connected to the crawler walking mechanism in a sliding mode, a chain saw plate is rotatably connected to the sliding seat, and a chain saw blade is installed on the chain saw plate; a driving head used for driving the chain saw blade to rotate is arranged on the chain saw plate, a first driving piece used for driving the chain saw plate to rotate is arranged on the sliding seat, and a second driving piece used for driving the sliding seat to slide on the crawler walking mechanism is arranged on the sliding seat. The coal mine cutting stability of the chain arm saw is improved, the cutting effect of the chain arm saw is ensured, and the coal mining convenience is improved.
Owner:SHANGHAI CHUANGLI GRP

Method and system for mining

ActiveUS12421802B2SurveyDrill bitsPilot holeLode
A method for mining narrow vein deposit of ore, the narrow vein deposit having a hanging wall and a foot wall, the method comprising: drilling a pilot hole into the narrow vein deposit along a path substantially centrally between the hanging wall and the foot wall to a depth within the vein; following the pilot hole with a larger diameter drilling assembly to fragment the ore into drill cuttings; circulating the drill cuttings to a wellhead; and collecting the drill cuttings for processing to recover the ore therefrom.
Owner:NOVAMERA INC

Walking system of coal mining machine

The invention relates to the technical field of coal mining machines, and provides a coal mining machine walking system which comprises a coal mining machine and a scraper conveyor, the coal mining machine comprises a machine body, a guide assembly and a sliding shoe, and the guide assembly and the sliding shoe are both arranged on one side of the machine body in the width direction. The guide assembly and the sliding shoe are sequentially arranged in the length direction of the machine body, the guide assembly comprises a first sliding part, the scraper conveyor comprises a guide rail and a guide chain, the guide chain is fixedly connected with the sliding shoe, the first sliding part is in sliding fit with the guide rail, a first channel is formed in the guide rail, and the guide chain is movably arranged in the first channel. And the coal mining machine is driven by the sliding shoes to move along the guide rails. The coal mining machine walking system has the advantages of being stable in guiding, continuous in traction, low in noise, resistant to abrasion, reliable in operation and the like.
Owner:SHANXI TIANDI COAL MINING MACHINERY +1

Drill carriage chain tensioning device and drill carriage

The invention provides a drill carriage chain tensioning device and a drill carriage, and the drill carriage chain tensioning device comprises a chain wheel which is configured to be meshed with a chain. The chain wheel takes the first pin shaft as a rotating shaft, and the chain wheel is rotatably connected with the first pin shaft. The tensioning assembly comprises a screw rod and a screw rod barrel, threads are arranged on the inner side of the screw rod barrel, threads are arranged on the outer side of the screw rod, the screw rod barrel is connected to the outer portion of the screw rod in a sleeving mode, and the screw rod is meshed with the screw rod barrel. The screw rod is arranged in the direction perpendicular to the length direction of the first pin shaft and fixedly connected with the first pin shaft, the screw rod barrel is configured to be rotatably installed on a propelling beam body of the drill carriage, the relative positions of the chain and the propelling beam body are fixed, and the screw rod barrel is rotated to drive the chain wheel to move relative to the chain. According to the drill carriage chain tensioning device, the chain tensioning force can be effectively adjusted.
Owner:JINAN LINGONG MINING & ROCK TECH CO LTD

A left-right cooperative walking control method and device of a continuous miner

The present application belongs to the technical field of walking control of coal mining machine, and solves the problems of lacking of coordinated control of left and right caterpillar belts and not enough optimization of self walking motor control of existing continuous mining machine. A left and right coordinated walking control method and device of continuous mining machine are proposed, including the following steps: S1: obtaining output values of left and right caterpillar belt control handles; S2: if straight going, executing steps S3-S4, if turning, executing steps S5-S7; S3: taking the motor controlled by the control handle with larger value in the output values as reference motor and obtaining speed feedback; S4: determining speed given of following motor according to speed feedback of reference motor; S5: taking the motor controlled by the control handle opposite to the turning direction as reference motor and obtaining speed feedback; S6: determining turning angle of target continuous mining machine; S7: determining speed given of following motor according to turning angle and speed feedback of reference motor. The present application can optimize output of following motor, and realize coordinated control of stable straight going and smooth turning of continuous mining machine.
Owner:TAIYUAN INST OF CHINA COAL TECH & ENG GROUP +1

Split type coal mining machine carrier and speed synchronization method

A split type coal mining machine carrier includes an explosion-proof power source vehicle and a self-driving carrying platform, and a synchronous walking control mechanism is arranged between the explosion-proof power source vehicle and the self-driving carrying platform, the synchronous walking control mechanism includes a buffer connection control device and a synchronous walking control system, the buffer connection control device is a buffer connecting rod, includes a first rod body and a second rod body, a buffer oil cylinder is arranged between the first rod body and the second rod body, first and second hinged pieces for connecting front and rear vehicles are respectively arranged at the ends of the first rod body and the second rod body away from the buffer oil cylinder, and the first rod body and the second rod body are mutually inserted, and the cross section of the insertion interface is square, the beneficial effects of the present application are that through the design of the synchronous walking control mechanism and the speed synchronization method, the coordinated movement of the explosion-proof power source vehicle and the self-driving carrying platform is realized, and the driving stability and operation efficiency of the coal mining machine carrier are significantly improved.
Owner:SHAANXI COAL IND GRP SHENNAN IND DEV CO LTD +1

Cutting mechanism and coal mining machine

The present application relates to coal mining technology field and disclose a kind of cutting mechanism and coal winning machine, the cutting mechanism includes rocker housing, drum cutting part, drive motor, transmission module and buffer assembly, drum cutting part is connected with rocker housing, drum cutting part includes rotatable cutting execution component and the drive end of driving cutting execution component rotation, drive motor is installed on rocker housing and has output end, transmission module includes mounting plate and the gear set being set on mounting plate, mounting plate is detachably arranged in rocker housing, gear set connects output end and drive end, to transmit the power of drive motor to cutting execution component, buffer assembly is arranged between mounting plate and rocker housing, for buffering the vibration received by transmission module and limiting the displacement of mounting plate in multiple directions relative to rocker housing.The cutting mechanism of the embodiment of the present application can realize the quick maintenance and replacement of transmission module, and can slow down the transmission of vibration, ensure the stable transmission of power.
Owner:CCTEG COAL MINING RES INST +3

Rapid coal seam tunneling equipment

The utility model discloses rapid coal seam tunneling equipment, and relates to the technical field of coal mining equipment. Comprising a machine body, crawler belt assemblies are arranged at the positions, close to the front portion and the rear portion, of the lower surface of the machine body, and supporting mechanisms are arranged at the positions, corresponding to the front crawler belt assembly and the rear crawler belt assembly, of the lower surface of the machine body; a heading head assembly is installed on the left side face of the mechanical arm assembly, extension mechanisms are arranged on the front and rear side faces of the heading head assembly, a rotating cylinder is fixedly installed on the upper surface of the mechanical arm assembly, and a driving mechanism is installed on the upper surface of an output shaft of the rotating cylinder. The posture adjusting function of the machine body is added, under the complex geological condition, the height of the crawler belt assembly is increased, so that anti-skid objects are laid, the purpose that equipment is disengaged from subsidence is achieved, the width of a heading head is adjusted according to the use requirement, meanwhile, follow-up machine retreating is facilitated, the water detecting function is added, and the heading efficiency is greatly improved.
Owner:TONGMEI DATANG TASHAN COAL MINE CO LTD