55results about How to "Reduce spare parts" patented technology

The invention discloses a method for detecting the temperature field of a calcination rotary kiln and a device thereof. The method comprises the following steps: mounting a group of temperature thermocouples in the inner lining of the kiln body of the calcination rotary kiln in the axial direction of the kiln body; determining the amount and the distribution clearance of the thermocouples according to the requirements for measuring the precision of temperatures on the preheating section, the calcining section and the cooling section of the calcination rotary kiln; and connecting each thermocouple with the wireless communication box mounted on the shell of the calcination rotary kiln body, so that the wireless communication box can transmit the temperature signal of each thermocouple to a computer analysis system on a real-time basis. The invention has the advantages that the real-time measurement of the distribution of the temperature field of the overall rotary kiln is realized; the most authentic material temperatures can be directly measured without being interfered by the flue gas and the flame in the kiln; the construction cost of the complete set of devices is far lower than that of the prior infrared thermometer system; the spare parts are cheap, and the maintenance and the replacement are convenient, therefore, the production cost and the maintenance cost are reduced; and the technical characteristic is reliable, therefore, the failure rate is low. As accurate measurement is realized, the invention provides a calcination control system with strong support for improving the automatization.

The present invention discloses a system and method of testing a high-voltage circuit breaker. The system comprises a speed measurement sensor, a distance measurement sensor, a current sensor, a data acquisition and processing system and an industrial control computer. The insulation characteristics, the electrical characteristics and the mechanical characteristics, measured by the speed measurement sensor, the distance measurement sensor and the current sensor, of a high-voltage circuit breaker are sent to the industrial control computer through the data acquisition and processing system; the insulation characteristics are the leakage current and the insulation resistor of the high-voltage circuit breaker; the electrical characteristics are the opening and closing current and the measurement current; and the mechanical characteristics are the total motion time, the motion amount and the motion merge-joint direction of the high-voltage circuit breaker, and the accelerated speed, the acceleration time, the uniform motion speed, the uniform motion time, the deceleration process of the motion, the overshoot of the motion and the overshoot time when the motion starts. The system and method of testing a high-voltage circuit breaker are able to discover an abnormal state and predicate a fault period at the early state of the fault so as to fully make a service preparation and provide a technology basis for reasonably making the maintenance plan of a device, therefore the operation reliability of the power grid is improved.

The invention provides a symmetric turnout for line rails No.4 and No.5 in urban rail traffic engineering. The turnout is arranged on a parking line rail of an underground line in an urban rail engineering, the structure of the symmetric turnout comprises a group of railroad switches, a group of frogs and a connecting steel rail, wherein the railroad switches are connected with the frogs by virtue of the connecting steel rail so as to form a symmetric turnout provided with two side rails. The symmetric turnout provided by the invention has the beneficial effects that the turnout ensures a subway and a light rail vehicle to travel safely between a main line and a parking line, related technical standards and safety requirements of the urban rail engineering are met, and the advantages of safety, reliability and convenience in manufacturing, paving, construction and maintenance are realized. By applying the symmetric turnout provided by the invention, turnout investment can be saved, and length of an auxiliary line can be obviously shortened, thus investment of a building project is greatly saved, construction difficulty is reduced, and project risk is reduced.

The invention discloses a bar mill which comprises a first transmission device, a second transmission device, a first power device and a second power device. A first driving shaft and a first driven shaft are provided with at least two first gear pairs different in transmission ratio, and the first transmission device is further provided with a first gearing shifting device used for switching different first gear pairs to be fixedly connected with the first driving shaft or the first driven shaft. A second driving shaft and a second driven shaft are provided with at least two second gear pairs different in transmission ratio, and the second transmission device is further provided with a second gearing shifting device used for switching different second gear pairs to be fixedly connected with the second driving shaft or the second driven shaft. The first power device is connected with a first roller box through the first transmission device, and the second power device is connected with a second roller box through the second transmission device. According to the bar mill, each roller box is driven by one independent power device with small power, power transmission is carried out through the gear shifting devices, cost is greatly reduced, and the investment and use maintenance cost is greatly reduced.

The invention discloses an automatic Mahjong machine. The machine comprises a shuffling mechanism which is installed in a machine body and controlled by a control unit, a tile conveying mechanism, and a tile push-and-lift mechanism; the tile conveying mechanism consists of two sets of oppositely arranged conveying units located on two sides of the tile push-and-lift mechanism; when a tile push lifting platform of the tile push-and-lift mechanism descends, the tile push lifting platform can accept Mahjong tiles coming from conveying units on the two sides at the same time, when the tile push lifting platform rises, the Mahjong tiles on a platform are raised to the center of the table. According to the automatic Mahjong machine, a brand new Mahjong machine is designed by adopting the method of automatically launching mahjong tiles in the middle of the machine body for players to grab, the normal use by the players is satisfied only by one magnetic absorption Mahjong tile, the Mahjong host structure is simplified, the spare parts and occupied space are greatly reduced, the Mahjong machine is lighter, the manufacturing cost can be reduced greatly; additionally the possibility of cheating is completely eliminated, the tabletop of the players is also neat, clean and fresh, and the adjustment of the number of mahjong tiles by different playing methods or even the number of players can be accommodated. The automatic Mahjong machine is an industry subversive innovation, the structure design is simple and reasonable, the Mahjong machine has the advantage of industrialization, low cost, high efficiency, and quantity production, and the market prospect is broad.

The invention relates to an unpowered rolling brush cleaning device, which belongs to cleaning equipment of a belt conveyor for bulk materials. The unpowered rolling brush cleaning device is characterized in that a rolling brush is parallel to a turnabout drum of the belt conveyor, a drive mechanism is arranged between a rolling brush extending shaft and a turnabout drum extending shaft, and the turnabout drum drives the rolling brush to rotate through the drive mechanism. The device is simple in structure and is convenient to install, energy consumption is avoided, adhesive tapes are not abraded, equipment and the belt conveyor synchronously run, and manual control is not required; extra power supply and control are not required to be provided, so that the project investment on electric and automatic control is saved; and operation in normal production is simplified, the maintenance workload of daily equipment is reduced, and the unpowered rolling brush cleaning device can be widely applied to the ordinary belt conveyor for bulk material transmission.

The invention relates to a digital logic device preset type digital circuit experiment device, comprising a DSP (Digital Signal Processor), a signal generator, device pin modules, a preset experiment switch and a communication interface, wherein the DSP is connected with the signal generator, the device pin modules, the preset experiment switch and the communication interface respectively. The devices used in each experiment are adopted to establish a logical relation database which is stored as preset experiment configuration, and an experiment number is selected according to the preset experiment; when the device is started, according to the state of the preset experiment switch, the experiment number is confirmed by the DSP; when the logical relation database corresponding to the experiment number, a logical relation graph is read, and the DSP configurates the state definition of the corresponding device pin module according to the logical relation graph; and then, the DSP conducts corresponding logical operation and output according to the preset logical relation of each device pin module. Compared with the prior art, the digital logic device preset type digital circuit experiment device has the advantages that the teaching content is broadened, the teaching cost is reduced, the teaching efficiency is enhanced, and the like.

The invention provides a line symmetric turnout No. 4.5 in urban rail transit engineering, and the turnout is arrange on parking line rail in underground lines in the urban rail transit engineering. The structure of the symmetric turnout comprises a group of railroad switches, a group of frogs and connecting steel rails, wherein the group of railroad switches is connected with the group of frogs through the connecting steel rails so as to form a symmetric turnout comprising two side rails. The invention has the beneficial effects that the turnout can satisfy the safe running of subway and light rail vehicles between a main line and a stop line, meets relative technical standards and safety requirements of the urban rail transit engineering, highlights the advantages of safety, reliability, convenience in manufacture, laying, construction maintenance and protection and the like. By the adoption of the invention, turnout investment can be reduced, and the length of auxiliary lines can be shortened greatly, and thus civil work investment can be reduced greatly, construction difficulty can be lowered, and construction risk can be decreased.

The invention discloses a connection device of a suspension chain and an aluminum guide rod. The device is characterized by consisting of a hooked hanger, a fixing hoop of the aluminum guide rod and a safety self-locking pin, wherein, the fixing hoop of the aluminum guide rod is arranged at the periphery of the hooked hanger and installed in the hoop installation pin hole of the hooked hanger by a hoop connection pin; the safety self-locking pin is connected with the fixing hoop of the aluminum guide rod by a self-locking fixing sleeve and matched with a locking column arranged on the hooked hanger. The connection device of the invention has the advantages of simple manufacturing, convenient operation, high loading and unloading efficiency, safe and reliable connection and extreme low fault rate of operation equipment and is maintenance-free and can correctly and intuitively judge and confirm the firmness degree of the connection between a fixture and the aluminum guide rod so as to effectively avoid and control the occurrence of the falling of the aluminum guide rod; meanwhile, the connection device also has greater value of popularization and application as well as invisible, potential and latent security benefits and social benefits.

The invention relates to a steam iron for realizing functional conversion through a single button. The steam iron comprises a shell, a water tank and a soleplate steam chamber; the steam iron also comprises a pump body, a pump rod, an adjusting rod and a steam nozzle, wherein the pump body is formed on the upper part of the water tank; two grooves are arranged on the outer edge in the circumferential direction; a water inlet pipe, a first water outlet pipe and a second water outlet pipe are arranged on the bottom wall; the pump rod is positioned on the upper part of the pump body; the upper end of the pump rod is fixedly connected with a control button; the lower end of the pump rod and a guide rod can move relatively in axial direction and can be connected in torque transmission; the lower end of the pump rod is fixed with a pump bat which slides in the cylindrical wall of the pump body; the upper end of the pump rod is provided with a convex shoulder which is sunken into two grooves respectively or is laid on the outer edge of an open mouth of the upper end; the adjusting rod comprises a guide rod, a selective sealing part and a steam shaft from top to bottom; the lower end of the steam shaft is provided with a water drop groove; the steam nozzle is fixed between the bottom of the water tank and the soleplate steam chamber; the diameter of an inner hole is the same as that of the steam shaft; and one part of the upper section of the inner hole in circumferential direction is provided with a cutting groove. The steam iron can realize functional conversion through a single button.

The invention relates to a thermal confluence bus-piping waste heat recovery and utilization system, whose thermal source is air medium. It is characterized in that at least two thermal air sources are connected with the channel of thermal air source respectively; each channel of thermal air source is connected one way of three-way wind door; another channel of three-way wind door is connected with the bus pipe of thermal confluence by connecting pipes; the bus pipe of thermal confluence is connected with the waste heat recovery device; the third way of three-way wind door is connected with by-pass channel; the protection device of generating device of thermal air source can be assigned on the channel of thermal air channel directly; the control equipment of thermal confluence is connected with the generating device of thermal air source, the three-way wind door and controlling and measuring component on the waste heat recovery and utilization device by control circuit. The merit of invention is that multiple thermal air sources are combined to enter into a waste heat recovery and utilization device so that waste recovery is realized easily and it is provided with high recovery efficiency, compact structure, small occupied area, easy assignment, easy running and maintenance and few spare parts.

The invention discloses a laser cutting machine which comprises a pedestal, a material feeding platform and a moving platform, wherein a workpiece to be machined is arranged on the material feeding platform; the bottom of the material feeding platform is connected with the moving platform through material feeding platform guide rails in a sliding manner; the moving platform is fixedly arranged on the pedestal; laser cutting systems are separately arranged on two sides of the pedestal; and the laser cutting systems comprise laser devices, X shafts, Y shafts and Z shafts. The laser cutting machine is simple in structural principle; the shortcomings of an original common single-laser-head machine tool are overcome; and a double-laser-head synchronous cutting system and a double-laser-head asynchronous cutting system are integrated. By the use of the characteristics of the laser cutting machine, the original procedures of overturning, clamping and the like are canceled; and meanwhile, by the use of novel material feeding and discharging driving supporting batten devices, a lifting table, a working table and a hydraulic device in the conventional machine are eliminated.

The invention discloses an equipment fault prediction method. The method comprises the following steps: training is performed by an key component image training sample of equipment; an input training sample set is trained, the training sample set comprises output data of the Bayesian network model and training samples containing a plurality of working parameters, and a neural network model is obtained through training according to the training sample set; an acquisition module acquires working state data of the equipment; a key component image of the equipment is acquired; the obtained image of the key component into a Bayesian network model is input to output data DIA; the working state data of the equipment is preprocessed to obtain data DIB and fault prediction is made by using DIA and DIB according to the neural network model. Fault occurrence prediction and fault occurrence position locking can be provided, so that production loss is reduced, maintenance support cost is reduced, and the equipment perfectness rate and the task success rate are improved; through state monitoring, risks caused by faults in the task process are reduced, and the task success rate is improved.

The invention discloses a column formwork clamp and a using method thereof. The column formwork clamp comprises an outer tube, an inner tube, a locking mechanism, a screw rod, a lifting ring and a pinshaft, one end of the inner tube is inserted in the outer tube, and the other end of the inner tube is connected with the screw rod; and the locking mechanism is fixed at one end of the outer tube, the inner tube is connected with the outer tube through the locking mechanism, the lifting ring is fixed at the middle of the outer tube, and the pin shaft is vertically inserted at one end of the outer tube. The column formwork clamp adapts to different construction requirements by adjusting the length of the column formwork clamp, and is less in spare part and can be recycled, the construction cost is reduced, using operation is simple and fast, and the construction efficiency can be enhanced; the column formwork clamp is fixed through the screw rod and nuts, connection is firm and not easy to loose, and protruding parts after installation is less, so that construction personnel is not easy to scratch or stumble; and a suspension device is used for assisting positioning during installation, manpower input during installation can be reduced, the installation efficiency is improved, and the situation the construction personnel are injured after the column formwork clamp is released during detaching is prevented.

The invention provides a braking device for a permanent-magnet direct-driving roller. The braking device for the permanent-magnet direct-driving roller comprises large gears fixedly installed on the roller and small gears meshing with the large gears, a rotation shaft is fixedly connected to the small gears, and brakes are arranged on the rotation shaft. The roller is driven by a belt to achieve transmission to drive the small gears to rotate, low-speed transmission is changed into high-speed transmission, the brakes and backstops are installed on the high-speed shaft, and the braking problemof the permanent-magnet direct-driving roller is effectively solved.

The invention discloses a material return device anti-blocking device for a CFB boiler, and an operation method thereof. The material return device anti-blocking device comprises a material return device, material return device box body vibrating air valves and a material return device wind cap; the at least three vibrating air valves (4) are arranged at the lower part of the box body of the material return device (1) and positioned below the material return device wind cap (6); intercept valves of the vibrating air valves (4) at the lower part of the box body of the material return device are repeatedly closed and opened, and the intercept valves of the vibrating air valves (4) at the lower part of the box body of the material return device are closed till a pressure value of a fluidizing air main pipe is decreased to be a normal value, so that problems that after the automatic fluidization of a material return device of a conventional CFB boiler is destroyed, with the blocking of the material return device, a machine set needs to be restarted after halt cooling, the whole process is long in time consumption, the startup and stop costs of the machine set are high, the great economic loss is caused, the high-pressure fluidizing air system resistance can be increased when the CFB boiler continuously operates after the material return device is blocked, and safety of equipment and the machine set can be affected as two parallelly-operated high-pressure fluidization blowers tack or stall, are solved.

The invention discloses a high-speed filter backwashing energy-saving device and a use method thereof. The device comprises a high-speed filter, a backwashing water inlet start-stop control system anda backwashing water outlet main electric valve; wherein the backwashing water inlet start-stop control system comprises a multifunctional water pump control valve, a backwashing water inlet main electric valve, a backwashing water inlet main manual valve and an electromagnetic flowmeter; two ends of the multifunctional water pump control valve are respectively communicated with the high-level water tank water supply pump and the water inlet end of the backwashing water inlet main electric valve; the water outlet end of the backwashing water inlet main electric valve is communicated with the water inlet end of the backwashing water inlet main manual valve, the water outlet end of the backwashing water inlet main manual valve is communicated with the water inlet end of the electromagnetic flowmeter, the water outlet end of the electromagnetic flowmeter is communicated with the backwashing water inlet end of the high-speed filter, and two ends of the backwashing water outlet main electric valve are respectively communicated with the backwashing water outlet end of the high-speed filter and the sewage tank. The problems that a backwashing pump wastes electric energy and is short in service life due to frequent starting and stopping are solved, and meanwhile the problems of sealing leakage of a backwashing water outlet electric butterfly valve and waste caused by frequent replacement of electric valve spare parts are solved.

The invention relates to an underwater granulator granulation template, in particular to a vacuum heat insulation cover plate for the granulation template. The vacuum heat insulation cover plate provided by the invention is arranged on the surfaces of an inner ring and an outer ring of the granulation template to be capable of insulating heat conduction, convection and radiation in these portions,the heat-preservation and heat-insulation performance of the portions is improved, the transmitting speed of temperature dropping generated by inner ring and outer ring areas under the action of cooling water towards the edge of a template granulation band is reduced, the temperature difference between the edge of the template granulation band and the central portion is reduced, and the granulation quality is improved. The vacuum heat insulation cover plate for the granulation template comprises a lower cover plate, a middle support grid plate, an upper cover plate and a high-temperature resistant heat insulation coating. According to the vacuum heat insulation cover plate for the granulation template, a main body area of the vacuum heat insulation cover plate is provided with a pluralityof independent vacuum cavities which do not communicate with each other, the inner side of the lower cover plate is provided with the high-temperature resistant heat insulation coating, and the outward convection, conduction and radiation loss of internal heat of the granulation template is insulated.

The invention relates to a transitional flange used between a motor and a fan. The transitional flange is mounted on a fan box body; a motor is mounted on the transitional flange through a shaft; the transitional flange is divided into an inner ring and an outer ring; screw holes are formed in the inner ring circumferentially at the same interval; and a plurality of annular screw holes with different radius are formed in the outer ring of the transitional flange correspondingly according to the hole positions of the motor flange screw holes with different modes. According to the transitional flange provided by the invention, when the motor is replaced, the motor can be replaced only by disassembling screws of the motor flange and without replacing the transitional flange; and when spare parts are prepared, the spare parts can be effectively reduced and the cost is reduced.