324results about How to "Avoid labor intensity" patented technology

The invention discloses a flight carrier system of an unmanned aerial vehicle.The flight carrier system comprises a lifting mechanism and a grabbing mechanism.The lifting mechanism comprises a fixing carrier plate, a lifting carrier plate and a lifting lead screw.A driven tooth is arranged at one end of the lifting lead screw.A driving tooth is arranged on the lifting carrier plate.The driving tooth drives the driven tooth to rotate to control the lifting lead screw to be lifted.The lifting lead screw is lifted to drive the lifting carrier plate to move.The grabbing mechanism comprises a base, a movable arm and a traction device controlling the movable arm.The base is provided with a pair of movable arms, a rotating handle and a traction rod.The rotating handle rotates forward and reversely to pull the traction rod to extend and contract to drive the two movable arms.The grabbing mechanism is provided with a bottom carrying mechanism.Compared with the prior art, the flight carrier system of the unmanned aerial vehicle has the advantages that by means of longitudinal moving of the lifting mechanism and clamping of goods through the grabbing mechanism, the unmanned aerial vehicle can transport the goods by means of remote control, labor force is saved, and the working efficiency is improved.

The invention relates to technology of fault diagnosis, and aims to provide a compressed air system and an intelligent pipe network leakage detecting method for the same. The intelligent pipe network leakage detecting method includes that signals of the pressure, the temperature and the flow of compressed air are acquired by a sensor mounted on a terminal delivery pipe network, and are transmitted to a low-pass filter circuit, received signals are coarsely filtered and are transmitted back to an upper computer by an A / D (analog / digital) conversion circuit via a lower computer, the upper computer obtains change relation of flow parameters along with time and the length of a pipeline according to actually measured data of a starting point and actually measured data of a finish point, and then a pipeline leakage detection function is realized by means of comparing theoretic output with actual output. The intelligent pipe network leakage detecting method adopting detection technology is high in leakage detection accuracy which is higher than 95 degrees, false alarm rate is lower than 3%, detection time is shorter than 55 seconds, sensitivity is high, and leakage quantity higher than 1.5% of delivery quantity of the pipeline can be detected. In addition, when the intelligent pipe network leakage detecting method is used for positioning a leakage point, precision is high, positioning precision error is lower than 1% of the total length of the pipeline, shutdown of a factory is avoided by means of online detection, and labor intensity of manual detection is reduced by means of online detection.

The invention relates to an adsorption concentration-preheating type catalytic combustion system for purifying automobiles and coating exhaust gas in related fields and a purifying method thereof. The adsorption concentration-preheating type catalytic combustion system comprises an exhaust gas inlet, a wet-type filter, an activated carbon adsorption device, a heat exchanger, a catalytic combustion device, an air inlet, an air supplement port, a sampling port, a temperature detector, an on-line monitor, a frequency conversion draught fan and an exhaust funnel. A gas collecting port collects volatile organic exhaust gas, the volatile organic exhaust gas enters the activated carbon adsorption device after being filtered by the wet-type filter, and exhaust gas obtained after adsorption purification reaches the standard and is discharged by an exhaust blower to high altitude through the exhaust funnel; after the catalytic combustion system is preheated, volatile organic compounds adsorbed by the activated carbon are heated by hot air and desorbed and then are conveyed to a catalytic combustor for low-temperature catalytic oxygenolysis; after sufficient burning, the organic compounds are decomposed into harmless CO2, H2O and other matter to be discharged to high altitude.

The invention discloses a rotary-pressing flaring flanger at a tube end. A hydraulic mechanism comprises a motor--oil pump, an oil box and a control valve set; the oil pump and the control valve set are connected with the oil box; the control valve set is fixed on the body of the oil box and is connected with the oil cylinder of a clamping mechanism, the hydraulic motor of a rotary-press mechanism and a jacking oil cylinder; the frame of the clamping mechanism is fixed on the panel of the oil box of the hydraulic mechanism; an upper crossbeam fixes the oil cylinder; the piston rod of the oil cylinder is connected with a slide block; a lead rail fixed by the frame is internally provided with the slide block which is connected with the piston rod of the oil cylinder and fixes an upper module; the upper module is provided with an upper clamping jaw; a lower module is fixed on the frame and is provided with a lower clamping jaw; the frame of the rotary-press mechanism is fixed on the panel of the oil box of the hydraulic mechanism; one end of two guide shafts is respectively fixed with the frame of the clamping mechanism and the other ends are fixed at the other side wall of the frame; a shell is provided with a slide bearing and is fixed at the two guide shafts; a pushing body provided with a rotary-press head and a hydraulic motor are arranged in the shell; the pushing body is connected with the output shaft of the hydraulic motor; the jacking oil cylinder is fixed on the frame and the piston rod of the jacking oil cylinder is connected with the shell; the rotary-pressing flaring flanger is suitable for the flaring flanging process of various calibers at the tube end.

The invention provides a derricking direction-changeable telescopic belt conveying bidirectional loader-unloader and relates to the field of logistics transportation cargo loading and unloading mechanical equipment. The derricking direction-changeable telescopic belt conveying bidirectional loader-unloader comprises a vehicle having bearing and walking functions, a telescopic cross arm having lifting, telescoping and swinging functions, a middle transition conveyor which has a swinging function and is capable of inclined conveying, a first belt conveyor and a second belt conveyor having derricking, swinging and telescoping functions, a metering device having metering, displaying, storing and printing functions, and an operating control system used for complete machine operation of the loader-unloader. The derricking direction-changeable telescopic belt conveying bidirectional loader-unloader has the advantages of simple structure, reliable work, convenient and rapid movement and transfer, and wide operating scope; the derricking direction-changeable telescopic belt conveying bidirectional loader-unloader can reduce manually-assisted carrying, reduce workload, shorten operating time, increase loading and unloading working efficiency, reduce the cost of loading and unloading carrying, improve working environment and work conditions, guarantee economical, rapid, convenient and safe loading and unloading and transportation, allow change of the direction of logistics conveying, and realize forward and reverse loading and unloading, automatic metering statistical analysis, and loading and unloading quantity / weight recording, displaying and storing.

The invention discloses a bean gluten machine comprising a heating container, a shaping roller and a cover body, wherein the heating container has a double-layer structure, the outer layer is a heat-conducting layer, the inner layer is a material layer with an opening, the heat-conducting layer is internally provided with a secondary heater, two opposite side surfaces of the material layer are V-shaped, an anti-overflowing device is arranged at the edge of the material layer, a water pump facilitating circulation and heating of materials is arranged on the material layer, a gas pipe of the water pump is communicated with the material layer and provided with a group of through holes; first, second and third transmission belts are arranged above the material layer in the direction from feeding to discharging, a guiding device is respectively arranged on the discharging ends of the first, second and third transmission belts; the surface of the shaping roller contacts the bean milk surface at the lowest point of the material layer; and the cover body is positioned above the material layer and provided with a feeding device and a fan facing the bean milk in the material layer.

A super-fibrous racing boat has a sandwich structure composed of the external and internal jackets prepared from the pre-dipped poly-p-phenylene benzobisthiazole (PBO) super-fibers and the sandwich prepared from the cellular material Nomex. Its advantages are high specific strength, high specific modulus, high impact strength, high rigidity and light weight.

The invention relates to the automatic rubber mixing process of a mill, and belongs to the field of rubber processing. The process steps are as follows: rubber is fed onto the drum of the mill by a rubber feeding device through an upper station; a rubber mixing step starts; after the rubber passes through a drum gap, an automatic folding-back device receives the rubber and lifts the rubber high before the rubber is re-put into the drum gap; in this way, the rubber passes through the drum gap again and again to be mixed; during the period, the automatic folding-back device clips the rubber to move from side to side so that the rubber is mixed from side to side so as to achieve the function of folding back; during the mixing, weighed remedy is fed into a weightdrop scale driven by wind after the remedy is checked; the rubber is gradually fed into the mill along a remedy sliding chute above the mill through an electric vibrating feeder to complete the course of automatic feeding; after the rubber is mixed, the mixed rubber is conveyed out through an output conveyer belt.

The invention discloses an automatic intelligent container paint mixing and conveying system. The automatic intelligent container paint mixing and conveying system comprises a paint conveying mechanism, an intelligent online metering paint mixing mechanism and a tube-type mixer, wherein the paint conveying mechanism is connected with a transition barrel, the intelligent online metering paint mixing mechanism is arranged between the transition barrel and paint mixing barrels, the intelligent online metering paint mixing mechanism comprises pneumatic control ball valves, online meters and an automatic control box, the tube-type mixer is connected with a multi-path distributor which is provided with one or more outlets, the outlets are connected with a paint spraying machine through arranged paint spraying pumps, the multi-path distributor is connected with a low-pressure circulation loop, and a pipeline between the paint spraying pumps and the paint spraying machine is further provided with a high-pressure cleaning loop. According to the automatic intelligent container paint mixing and conveying system and a using method thereof, labor intensity of operating personnel is relieved through full automatic running, and the situation that an inaccurate paint mixing proportion or mistaken use of solvents leads to scrapping of a whole barrel of paint or damage to the surface of a container can be avoided.

The present invention discloses a kind of re-mixed organic-inorganic fertilizer and its production process. The re-mixed organic-inorganic fertilizer is produced with incinerated domestic refuse, rape seed cake, tung seed cake, tea seed cake, hog bristles and hair, nitrogen fertilizer, fowl excrement, potassium sulfate, phosphate fertilizer, plant ash and vinegar. The fertilizer can increase the organic matter and trace element content in soil, and makes soil loose and black, and using domestic refuse as material can lower cost and eliminate environmental pollution.

The invention relates to the field of mechanical processing equipment, in particular to a round rod end part automatic hole drilling device. The round rod end part automatic hole drilling device comprises a material storage assembly, a material transfer assembly, a bearing and carrying plate, a position limiting assembly and a hole drilling assembly, wherein the material transfer assembly is positioned between the material storage assembly and the hole drilling assembly; the position limiting assembly is positioned at the top of the bearing and carrying plate; the bearing and carrying plate isof a cuboid structure; the bottom of the bearing and carrying plate is provided with two first support plates; the hole drilling assembly comprises a first processing assembly and a second processingassembly; the first processing assembly and the second processing assembly have the same structure; each of the first processing assembly and the second processing assembly comprises a hole drillingmachine and a feeding assembly; the material transfer assembly comprises a clamping assembly and a rotating assembly; the clamping assembly is positioned at the top of the rotating assembly. The roundrod end part automatic hole drilling device has the advantages that through the material storage assembly and the material transfer assembly, the feeding operation on workpieces can be automaticallycompleted; through the position limiting assembly and the hole drilling assembly, the hole drilling operation can be automatically completed; the production efficiency is improved; the work intensitycaused by long-time feeding of workers can also be avoided.

The invention discloses a telescopic belt conveying two-way loading / unloading machine, and relates to the field of logistics transportation goods loading / unloading mechanical equipment. The telescopic belt conveying two-way loading / unloading machine consists of a vehicle with bearing and walking functions, a rotating arm with a swing rotating function, a middle transition conveyor capable of aslant conveying, a belt conveyor 1 with amplitude change, swing rotating and extension functions, a belt conveyor 2, a metering device with metering, displaying, storage and printing functions, and an operation control system for operating the whole loading / unloading machine. The telescopic belt conveying two-way loading / unloading machine is simple in structure, reliable in work, convenient and fast in movement and transfer and wide in operation range, can reduce manual auxiliary carrying, relieves the labor intensity, shortens the operation time, improves the loading / unloading efficiency, reduces the loading / unloading carrying cost, improves the working environment and labor conditions, guarantees economical, fast, convenient and safe loading / unloading transportation, can change the logistics conveying direction, realizes forward / reverse two-way loading / unloading, and can automatically meter, count and record the loading / unloading number and weight for displaying and storage.

The invention discloses a moving belt type conveying loading and unloading machine and relates to the field of logistic transporting cargo loading, unloading and carrying equipment. The moving belt type conveying loading and unloading machine comprises a bearing vehicle, a sliding trolley, a middle conveyor, a transition conveyor, a feeding conveyor, a discharging conveyor, a metering device and an operation control system of the moving belt type conveying loading and unloading machine. The sliding trolley is arranged on the bearing vehicle. The two ends of the sliding trolley are symmetrically installed on the feeding conveyor and the discharging conveyor. The middle conveyor is installed at the middle portion of the sliding trolley. The metering device is installed on the middle conveyor. The transition conveyor is fixed to a bracket of the discharging conveyor. The moving belt type conveying loading and unloading machine is simple in structure and reliable in work, moving and field transferring are convenient and fast, the work range is large, manual auxiliary carrying can be reduced, the labor intensity is lowered, the work time is shortened, the loading and unloading work efficiency is improved, the loading and unloading carrying cost is reduced, the work environment and labor conditions are improved, it is ensured that loading and unloading transporting is economic, fast, convenient and safe, the logistic conveying direction can be changed, positive and negative bidirectional loading and unloading are achieved, and the loading and unloading number and weight are automatically metered, counted and recorded and are displayed and stored.

The invention discloses an underground pipeline dredging method. The underground pipeline dredging method is characterized in that sludge in a pipeline is gathered to a designated position through a pipeline dredging device and then removed out of the pipeline through external force. By means of the underground pipeline dredging method, the dredging effect of the pipeline can be effectively improved, the amount of sludge in the pipeline is greatly lowered, the occurrence ratio of sludge in the pipeline is controlled below 5%, smoothness of the pipeline is ensured, and drainage efficiency of an urban drainage system is improved.

The invention relates to a metallic workpiece surface defect recognition method and device based on machine vision. The method comprises the steps that a surface image of a metallic workpiece is acquired, and the surface image of the metallic workpiece is converted into a grayscale image with edge features through image preprocessing; image features of the grayscale image are enhanced through image enhancement processing; feature image data of the grayscale image obtained after enhancement processing is extracted through image segmentation processing; and the feature image data is input into apre-trained metallic workpiece defect recognition model, and a defect recognition result of the metallic workpiece is output. The device comprises a manipulator, a lifting stock bin, image collectionequipment and a central processing module, wherein the central processing module is used for performing defect recognition on the surface image of the metallic workpiece, generating a control instruction through the defect recognition result and controlling the manipulator to clamp and place the metallic workpiece according to the control instruction. The metallic workpiece surface defect recognition method and device provide better help for optimizing the recognition result of a surface defect of the metallic workpiece.

A semisolid processing production line is characterized by being composed of a smelting furnace, a metal melt taking and injecting machine, a semisolid slurry preparing device and a squeezing forming device sequentially. The semisolid processing production line improves working efficiency and is capable of continuously and efficiently conducting semisolid processing work, mass production capacity is improved, mass production of metal semisolid forming manufacturing pieces is achieved, meanwhile, adverse factors such as large labor intensity of operators and unstable technologies due to human intervention are avoided, and the quality of products is guaranteed. Technical design and process layout are compact and reasonable, operating is convenient, occupied area is small, all devices in the entire production line can work coordinately, and the metal semisolid processing technology can be achieved continuously, stably, safely and accurately.

The invention provides a grabbing device. The grabbing device comprises a supporting mechanism (10), a walking mechanism (20) and a grabbing mechanism (30), wherein the walking mechanism (20) is arranged on the supporting mechanism (10); the grabbing mechanism (30) is arranged on the walking mechanism (20) and comprises a manipulator; the manipulator comprises a fixing support (31), a clamping plate (32) arranged on the fixing support (31) and a first drive mechanism, and the first drive mechanism drives the clamping plate (32) to clamp or release a to-be-moved workpiece. With the adoption of the technical scheme, the problems that the efficiency is lower and the labor intensity is larger when outdoor unit connection pipes are discharged in the prior art are effectively solved.

The invention provides a precast outer wallboard connecting box and a connecting point. The precast outer wallboard connecting box is an embedded iron box of which the outer side surface is opened; the embedded iron box is embedded into a precast outer wallboard; a limiting block and an outer wallboard adjusting bolt are mounted in the embedded box; a dry hanging supporting part is transversely sleeved with the embedded iron box; the outer wallboard adjusting bolt passes through a bolt hole in the dry hanging supporting part; a sleeve connecting hole is formed in an outer sideboard of the dry hanging supporting part; an embedded sleeve is embedded into a precast overlapping beam; the front end of the embedded sleeve passes through a sleeve connecting hole in the outer sideboard of the dry hanging supporting part; a bolt fastening part is fixedly connected with a threaded hole in the embedded sleeve by pinching. According to the precast outer wallboard connecting box, the precast outer wallboard is flexibly connected with a building body, which is beneficial for earthquake proofing; an outer decorating surface of the precast outer wallboard can be manufactured in advance in a factory; the precast dry hanging outer wallboard and the building body are respectively constructed, so that the safety is ensured, the efficiency is high, the environment is protected, the energy is saved, the precision is high, and the waterproofing performance is good.

The invention discloses an oil-gas exploration method based on anomaly of light hydrocarbon oxidizing bacteria, which comprises the following steps: after homogenizing a soil sample, extracting sample DNA (deoxyribonucleic acid), and quantifying propane oxidizing bacteria and methane oxidizing bacteria by a fluorescence quantitative PCR (polymerase chain reaction) technique; determining anomaly thresholds of the propane oxidizing bacteria and methane oxidizing bacteria, establishing a microbiological anomaly reference system for verification zone oil-gas microbiological exploration, drawing isoline of the propane oxidizing bacteria, and carrying out microbiological anomaly zoning; and marking the gas-cap reservoir and pure reservoir in the anomaly zone according to the content of the methane oxidizing bacteria. According to the method, the anomaly of light hydrocarbon oxidizing bacteria is utilized to perform oil-gas exploration; in the precision detection aspect, the quantity of the light hydrocarbon oxidizing bacteria in the sample is directly detected to avoid the artificial interference in the traditional culture method; and the detection quantity is higher than that of the traditional culture method by 1-2 orders of magnitude, the time is shortened to 12 hours from 14-21 days in the traditional culture method, and the method can detect 96 samples at one time, thereby effectively enhancing the precision and detection efficiency of microbial oil-gas exploration.

The invention discloses an online product quality detection device used on a beer filling production line. Three detection stations are located on a mechanical transmission device which is used for clamping and overturning beer bottles, wherein the detection station I comprises one or two cameras I for photographing upright beer bottles and a backlight source I and is mainly used for detecting liquid levels and floaters; the detection station II comprises cameras II for photographing the neck and body areas of inverted beer bottles and a backlight source II and is mainly used for detecting suspended matters and part of deposits; and the detection station III comprises an X-ray imaging device for detecting the cap areas of the inverted beer bottles and is mainly used for detecting foreign matters and deposits. The online product quality detection device has the advantages of high detection speed and low missing detection rate.

The invention relates to a sewage treatment device for reusing polyester beverage bottles, which comprises a chassis and a working platform arranged on the chassis, wherein, two sides of the work platform are provided with a guardrail, and the working platform is connected with stairs. The chassis is provided with a filtering equipment, an end of which is provided with a settling device beneath, and the other end of the filtering equipment is communicated with sludge collecting troughs; the settling device is provided with a transporting screw, an end of which is also connected with the sludge collecting troughs; the two sludge collecting troughs are both connected with a sludge presser. The sewage treatment device flocculates, settles, filters and presses the sewage generated in a cleaning process to change the sludge into clods; the pressed water is transferred to a filtering screen through a sewage pump for circulation, thus realizing reclaiming and reusing. The sewage treatment device completely solves a plurality of problems during the reusing process of beverage bottles, decreases the labor intensity, improves work efficiency, reduces work risks, saves water, solves the secondary pollution problem of sewage and waste residue completely, and meets the requirement of the development of circular economy.

The invention belongs to the technical field of medical caring articles, and particularly relates to a multifunctional turnover device. The multifunctional turnover device solves the technical problem that practicability is poor in the prior art and comprises an inflatable air sac cushion made of flexible materials. The inflatable air sac cushion is connected with an inflating / deflating mechanism. The inflatable air sac cushion is provided with a middle cushion which is arranged in the middle and extends in the axial direction. A left wedge-shaped cushion and a right wedge-shaped cushion are arranged on the two sides of the middle cushion respectively. The middle cushion, the left wedge-shaped cushion and the right wedge-shaped cushion are respectively connected with the inflating / deflating mechanism. The middle cushion is provided with a horizontal middle plane when being in the inflated state, the left wedge-shaped cushion is provided with a left slope of which the height decreases gradually from the left side of the left wedge-shaped cushion to the middle cushion when the left wedge-shaped cushion is in the inflated state, and the right wedge-shaped cushion is provided with a right slope of which the height decreases gradually from the right side of the right wedge-shaped cushion to the middle cushion when the right wedge-shaped cushion is in the inflated state. The multifunctional turnover device has the advantages that practicability is high, pressure can be reduced effectively, and pressure sores can be effectively prevented.

The invention discloses a system for detecting surface defects of steel rails based on an intelligent trolley. The system comprises the intelligent trolley and an upper computer. The intelligent trolley comprises an image acquisition device, a communication module, a motor driving device and a control device, the image acquisition device, the communication module and the motor driving device are respectively connected with the control device, and the intelligent trolley is communicated with the upper computer via the communication module. The system has the advantages that the traditional manual inspection for steel rail defects is changed, the intelligent trolley and the upper computer are combined with each other to accurately acquire defect data of the steel rails, errors due to human factors can be effectively prevented, the system is high in accuracy, the detection speed can be increased, the labor intensity can be relieved for workers, the detection cost can be saved while the railway line safety is guaranteed, and the line maintenance efficiency can be improved.

The invention provides a delivery system which is matched with safety inspection equipment and allows delivery boxes to be automatically recycled. The delivery system comprises the safety inspection equipment (13), a smooth platform (1) on which objects of customers are placed, the delivery boxes (2) for loading and delivering luggage, a belt conveyer (3), an accumulation and delivery device (5), a delivery box empty judgment system (7), a suspicious object tracking alarm system (4), a diverter (8), a stainless steel roller machine or sliding plate (9), a belt type flat conveyer (10), an inclined belt conveyer (11) and a spare platform (12). The delivery system has the advantages that the whole delivery system is compact in structure; a single row of conveyers are adopted, so that the delivery system occupies a small area; the customers can conveniently pick up and place the luggage; the suspicious object tracking alarm system is additionally arranged, so that a path through which the suspicious object is directly delivered to an unpacking platform is eliminated; the delivery box empty judgment system is additionally arranged, so that the labor intensity of security staff is reduced; and by the delivery system, self-service security inspection of hand luggage of the customers can be realized.

The invention discloses a numerically-controlled finish-milling device and a finish-milling method for steel rail weld joints. The numerical control technology is adopted, and a profiling milling device of a milling cutter head assembly is closely attached to the profile of a steel rail inside the transversal plane of the steel rail so that milling can be carried out. The numerically-controlled finish-milling device comprises a base walking assembly, a shell door assembly, two steel rail clamping mechanisms and a numerically-controlled finish-milling mechanism, wherein the shell door assembly, the two steel rail clamping mechanisms and the numerically-controlled finish-milling mechanism are arranged on the base walking assembly; the shell door assembly is provided with an electric cabinet, and a control circuit controlling the steel rail clamping mechanisms and the numerically-controlled finish-milling mechanism and a programmable logic controller are installed inside the electric cabinet; and the numerically-controlled finish-milling mechanism comprises a vertical servo feed mechanism, a milling cutter head rotation servo mechanism, the milling cutter head assembly and a horizontal servo feed mechanism, and the three servo mechanisms cooperate with one another under the control effect of the programmable logic controller so that the milling cutter head assembly can mill the steel rail. According to the numerically-controlled finish-milling device and the finish-milling method, the work environment of workers can be greatly improved, the labor intensity of operators can be lowered, and the machining quality of the steel rail weld joints can be improved.

A testing device for magnetic conductive components terminal defect resolves the problem of terminal blind zone by ordinary magnet leakge method. The device includes a test part and signal processing part in which two magnetic poles of the magnetizer, test probee and assistant guide rod of the test part are at the same shaft line. The structure of the test probe is a two stage clamping structure in which the first comprises a shell, a spread spring, a holddown and the second has a reed, a detector, Hall units and magnetic focusing plate, the signal process part contains a preprocessor, signal processer, a display and a controller. The assistant guide rod resolves problem of blind zone at the terminal.

The invention discloses a truck bed convenient to load and unload goods and relates to the technical field of vehicles. The truck bed convenient to load and unload the goods comprises a bed body and abottom plate; the bottom plate comprises two sliding side beams, at least one sliding tray and a power device used for controlling the sliding tray to move forwards and backwards; the sliding side beams can extend out or can be stored at the bottom of the bed and can be docked with a truck to be loaded and unloaded with goods by controlling the extending lengths of the sliding side beams outsidethe bed; and the two sliding trays stretch across the two sliding side beams in a sliding manner and are controlled by a power device to slide out of the bed or to be stored in the bed along the sliding side beams. According to the truck bed convenient to load and unload the goods, as the sliding side beams and the sliding trays are arranged, the goods are more conveniently loaded and unloaded; and therefore, time and labor are saved, the labor intensity of an operator is reduced, the operator does not need to directly convey the goods into the bed, a situation that the operator directly throws the goods into the bed or the goods slide off from hands in the process of being thrown another operator in the bed is avoided, and the transporting efficiency is enhanced.

The invention discloses a method for recovering large mining height fully-mechanized face end part ground coal. The method comprises the following steps of: setting up 2 to 3 groups of supports on one side close to a working face in a return air drift of a large mining height fully-mechanized face; according to the daily advancement degree, performing manual advancing bottoming on the ground coal along the advancing direction of the working face in a transport drift of the large mining height fully-mechanized face, wherein the bottoming length is 4 to 6 meters, the bottoming height is 1 to 1.5 meters, and the bottoming gradient gamma is less than 10 degree; performing ascending coal cutting from the transport drift to the return air drift or performing descending coal cutting from the return air drift to the transport shift by adopting a coal mining machine; and after finishing the coal cutting of the return air drift by the coal mining machine, manually recycling a step remained close to an external upper in the return air drift to ensure that the ground coal on the upper end part and the lower end part of the large mining height fully-mechanized face is recovered continuously during the mining on the working face. The method has a simple process, convenient construction and easy operation, improves the coal mining rate of the large mining height face by about 4 percent, reduces influences caused by the ground coal to fully-mechanized production, and has extensive practicability.

The invention discloses a main and standby equipment intelligent converter including a DC stabilized voltage supply, a state monitor, a single-chip microcomputer and an intermediate relay output control circuit. The DC stabilized voltage supply of the intelligent converter provides a stable working voltage for the intermediate relay output control circuit and a single-chip microcomputer circuit; an input terminal of the intermediate relay output control circuit is in series connection with an output interface of the single-chip microcomputer; an output terminal of the intermediate relay output control circuit is connected to an equipment switch circuit; the single-chip microcomputer obtains equipment fault trigger signals, timed trigger signals and power-off trigger signals in real time to control connection of different contacts of two intermediate relay output circuits so as to further control working state switching between main and standby equipment and realize fault switching, timed switching and power-off switching between the main and the standby equipment; phenomena that the main and the standby equipment can not be used due to fault and aging resulted from being unused for a long time are prevented; and normal and safe operation of the equipment are guaranteed.

The invention relates to a gob-side entry driving method based on a complete period of roadway service and adopting a grouting anchor cable, belongs to the technical field of coal mining, and solves the problems of difficult supporting in an existing gob-side entry driving period, and complex advanced supporting operation and high labor intensity of workers in a later-period working face stoping period. The gob-side entry driving method comprises the following steps: driving along the edges of gobs in adjacent sections; laying metal meshes on the top plate and the two sides of a roadway; installing the hollow grouting anchor cable in a anchor cable hole in the top plate of the roadway, and installing a hollow grouting anchor rod and a high-strength anchor rod in anchor rod holes in the side of a coal pillar and the side of a working face separately; distributing observation equipment used for monitoring the fracture development of surrounding rock of the roadway on the surrounding rockof the roadway, and obtaining the fracture development degree of the surrounding rock of the roadway through the observation equipment; grouting to the hollow grouting anchor cable and the hollow grouting anchor rod on the basis of the fracture development degree of the surrounding rock of the roadway; and step S6, continuously cyclically repeating the steps S1-S5 until the gob-side entry drivingis completed. The gob-side entry driving method is easy to operate, and capable of greatly reducing the labor intensity of the workers, and the cost.