53results about How to "Stable output speed" patented technology

The invention discloses a pipeline spraying device comprising a feeding module and a clamping module. The feeding module comprises a machine frame, a spraying cavity formed in the upper portion of themachine frame, a drive motor arranged on the upper portion of the spraying cavity, a two-way lead screw movably connected with the lower portion of the drive motor, spray nozzles connected to the left side and the right side of the two-way lead screw correspondingly, and a liquid guide pipe arranged on the lower portion of the spraying cavity and communicating with each other. The lower portion of the liquid guide pipe is connected with the spray nozzles. The clamping module comprises a universal joint connected to the left side of the two-way lead screw in a rolling manner, a triangle clamping column used for clamping a pipeline and arranged on the universal joint, a regulation wheel arranged on the right side of the machine frame, and a triangle clamping column used for clamping the pipeline and arranged on the regulation wheel. Paint vehicle on the surface of the pipeline is comprehensively sprayed, and the paint vehicle is evenly sprayed.

The invention discloses a pipeline sprayer. The pipeline sprayer comprises a rack, a storage mechanism arranged above the rack and having a pressurization function, a feeding mechanism connected withan output end of the storage mechanism, a drive motor arranged above the feeding mechanism, a transmission mechanism connected with an output end of the drive motor and a paint spraying mechanism connected with an output end of the feeding mechanism, wherein the feeding mechanism comprises a feeding cavity body, a feeding piston arranged in the feeding cavity body and an air-pressure balance device matched with the feeding piston; a crank is rotationally connected to the downward output end of the drive motor; a connection rod is rotationally connected between the feeding piston and the crank;under the co-action of the elasticity of air-pressure balance balls and the elasticity of fluffy fillers, an air pressure in an air cavity and a pressure given to a spray cavity by a pressurizer aremutually balanced, and then stable conveying for a paint is ensured; and moreover, due to the wrapping of the fluffy fillers, the occurrence of the case that the pressure balance balls are broken dueto a too high pressure, is avoided.

The invention provides a hydro-viscous speed regulator of a wind power synchronous generator set. The hydro-viscous speed regulator is mainly composed of a machine body, an input shaft, an output shaft, a friction plate assembly and a control oil cylinder. The control oil cylinder is a double-acting single-ended output oil cylinder, a metering type closed loop is adopted as a hydraulic control oil passage, a metering type plunger fuel pump is adopted as a fuel pump, and a piston rod of the control oil cylinder is connected with a pressing plate of the friction plate assembly through an isolating bearing. A programmable controller or a single board computer electric control system for automatically operating and controlling the oil passage is arranged. When the oil passage is closed, the piston can be rigidly locked at a given position. The hydro-viscous speed regulator is simple in hydraulic loop, strong in adjusting rigidity, good in speed adjusting stability, flexible in motion, high in power and wide in speed adjusting range. The wind power synchronous generator set formed by the hydro-viscous speed regulator can completely solve the technical problem of low voltage rid-through in wind power generation. The hydro-viscous speed regulator can also be used for forming a marine shaft synchronous generator set with a main engine on a ship as power, and transportation cost is greatly saved.

Provided is a control method of a mechanical elastic energy storing permanent magnet motor group under various external disturbances. The permanent magnet motor group comprises a permanent magnet synchronous motor, a gear gearbox and a volute spring box used for mechanical elastic energy storing. The control method includes that a full system mathematical model including the permanent magnet synchronous motor, the gear gearbox and the volute spring box is constructed, and then non-linear internal model equations and a state feedback controller are designed aiming at various different an-harmonic cycle-bounded nonlinear external disturbances. According to the control method, the different non-linear internal model equations are designed, and the state feedback controller is designed on the basis of a nominal system control law. Test results prove that different nonlinear disturbance inputs can be completely restrained, the designed state feedback controller enables a closed loop system to fast track reference signals, angular velocity output by the permanent magnet motor group under various external disturbances is ensured to be basically stable, and high-accuracy servo control of the motor group is achieved.

The invention belongs to the field of mining hydraulic motors, and especially discloses a same-distribution-angle hydraulic cylinder motor. A technical problem to be solved is providing a same-distribution-angle hydraulic cylinder motor with the advantages of simple structure, operation convenience, high safety coefficient, long service life and effective reduction of the coal mine underground accident rate. The motor comprises a case body, three hydraulic cylinders, a crankshaft, a case body front end assembly and a control system, the whole case body is a shell structure, the three hydraulic cylinders are arranged in the case body side by side, the front end of the case body is provided with a case body semicircle seat for installing the crankshaft, the case body front end assembly is fixedly connected with the case body to fix the crankshaft, the piston terminals of the hydraulic cylinders are connected with the crankshaft through piston terminal covers, the hydraulic cylinders move back and forth to drive the crankshaft to rotate, the crankshaft drives the control system to move, and the control system controls the reciprocating motion of the three hydraulic cylinders in order to drive the crankshaft to continuously revolve. The motor adopting the hydraulic cylinders to drive the crankshaft to rotate has the advantages of low rotating speed, large torque, and suitableness for the use requirements of coal mine underground equipment.

The invention discloses a drive axle of an articulated tractor, comprising a drive axle shell assembly, a speed reducer assembly, a differential mechanism assembly (10) and a brake assembly (4), wherein the speed reducer assembly is set to be a two-stage speed reduction device, and composed of a main speed reducer assembly (2) and a rim speed reducer assembly (3); the main speed reducer assembly (2) and the rim speed reducer assembly (3) are arranged at the both ends of the drive axle shell assembly (1) respectively and connected via a half shaft (5); the main speed reducer assembly (2) adopts a spiral bevel gear transmission mechanism; and the rim speed reducer assembly (3) adopts a planetary speed reduction transmission mechanism with three planetary wheels. The drive axle disclosed by the invention is provided with the two-stage speed reduction device, so that the complete machine is large in input torque, high in transmission efficiency, stable in working, good in overall motion rigidity, and stable in product quality.

The invention belongs to the technical field of plastic welding, and particularly relates to a plastic particle extrusion welder. The plastic particle extrusion welding device comprises a screw extrusion welding device, a preheating device and an adjusting device, wherein the screw extrusion welding device is used for preheating and melting plastic particles and extruding the preheated and melted materials according to preset extrusion speed so as to weld an object to be welded; the preheating device is used for preheating the welding part of the object to be welded by blowing out hot wind before the materials are welded by the screw extrusion welding device; the adjusting device is used for adjusting the welding position and the welding angle of the screw extrusion welding device. The plastic particle extrusion welder is relatively simple and convenient to operate; due to the fact that the plastic particles are directly used as welding materials, the cost and energy consumption of plastic welding rod processing are saved, plastic circular storage tanks and longer plastic tank bodies can be conveniently welded, the discharging and moving speed of a welding machine are stable, the welding with the weld width being more than 20mm can be formed once, the welding strength is high, the weld appearance is attractive, the efficiency is high, and a traditional welding technology can be replaced or complementation is formed.

The invention discloses a transmission system which comprises a first differential planet gear mechanism, a second differential planet gear mechanism, a third differential planet gear mechanism and a plurality of speed change devices. The transmission system is simple in structure and low in cost, can have a very small size, can output the more stable rotating speed, and can achieve stepless speed change within a certain range.

The invention discloses a multifunctional lower limb rehabilitation moped, belongs to the technical field of medical apparatus and instruments, and relates to a power assisting device for providing rehabilitation training for a patient with the lower limb walking dysfunction due to illness. The moped is characterized in that rolling wheels are arranged on the lower portion of a chassis, a rack is fixed to the chassis, sprocket chain transmission mechanisms are arranged on the two sides of the rack, a pair of sprockets of the sprocket chain transmission mechanisms are fixedly connected with a transmission shaft, and the transmission shaft is fixedly sleeved with a worm gear reducer; a direct current motor is fixedly arranged above a shell of the worm gear reducer, the power output end of the direct current motor is fixedly connected with the input end of the worm gear reducer, and chains of the sprocket chain transmission mechanisms are fixedly connected with a lifting mechanism through connecting pieces; supporting mechanisms are connected to a cross beam of the lifting mechanism. By the adoption of the moped, the function that the supporting mechanisms on the underarms of the patient are always with the patient and are moved to a rehabilitation robot along with the patient when the patient is moved from a wheelchair to the rehabilitation robot is achieved.

The invention belongs to the field of differential mechanisms and in particular relates to a hydraulic brake device for a differential mechanism. The hydraulic brake device for the differential mechanism comprises a planetary gear differential and a hydraulic brake mechanism which are mutually meshed; the hydraulic brake mechanism comprises a plurality of separating plates, an inner disc is arranged between the separating plates, the inner disc is movably arranged on the planetary gear differential, the leftmost separating plate is fixedly connected with a gear differential, and a hydraulic cylinder which is used for pushing the separating plates and clings to the inner disc is arranged at the right side of the rightmost separating plate; a power device is connected outside the planetary gear differential, and rotating speed of an output end of the planetary gear differential and steering are controlled by virtue of the hydraulic brake mechanism. The hydraulic brake device for the differential mechanism has the advantages that structure is simple, in-situ steering can be realized, output rotating speeds of the left side and the right side can be conveniently adjusted, and power output is stable.

The invention discloses an automatic hydraulic generating speed bump device. A modularized installing mode is adopted. The automatic hydraulic generating speed bump device specifically comprises a pulse-type power source module, a continuous energy supply module and a generating module. Hydraulic circuit connection is adopted between the modules. The pulse-type power source module comprises a camlink mechanism, a plunger-type cylinder, a throttle valve, a piston cylinder, a one-way valve, a spring, a filter, a pilot-type overflow valve, a damper and a two-bit two-way magnetic exchange valve.The continuous energy supply module comprises a two-bit three-way magnetic exchange valve and an energy accumulator. According to the automatic hydraulic generating speed bump device, a pulse-type power source is adopted, so energy charged into the energy accumulator by a system within unit time is improved; a mode of alternate charging of the double energy accumulators is adopted, so a problem that the energy cannot be recovered while the single energy accumulator discharges the energy is solved; and vibration energy generated while a vehicle passes through a speed bump is converted to electric energy and secondary utilization is performed. The automatic hydraulic generating speed bump device is good in applicability, high in energy recycling efficiency, and strong in reliability.

The invention relates to a thin-diameter piston-type piezoelectric linear motor, comprising a tubular stator and a mover arranged inside the tubular stator. The stator comprises an upper and lower slender strip oscillators (the coupling heads at both ends of either oscillator are connected in a permanent manner, and the upper and lower lug bosses are arranged on both ends and supported on the inner wall of the tubular stator). The invention adopts a slender structure, and can be used for two-way driving and control; the invention is characterized in a simple structure and user-friendly functions.

The invention relates to an intelligent and economical paper outputting system and an intelligent and economical paper outputting method of public health facilities. The intelligent and economical paper outputting system comprises a plurality of intelligent toilet paper machines, and further comprises a server, wherein a once-again paper output starting unit is further arranged on each intelligenttoilet paper machine or within a certain surrounding range thereof; the once-again paper output starting units correspond to the intelligent toilet paper machines one by one; the once-again paper output starting units are matched with an intelligent terminal so as to achieve once-again paper output; the server is connected with each intelligent toilet paper machine through a network, is used forreceiving a once-again paper outputting request sent by the intelligent terminal, determining whether an once-again paper output authority exists, controlling the corresponding intelligent toilet paper machine to output paper once again, and is used for receiving and counting paper using condition information of the each intelligent toilet paper machine. Through the intelligent and economical paper outputting system and the intelligent and economical paper outputting method, achievement of intelligent paper output of the toilet paper machines is facilitated, waste of toilet paper is avoided, especially coordinated and intelligent management of toilet paper use in public toilets is facilitated, the public service quality is improved, and the commercial support sources of the public facilities are broadened.

Provided are a static pressure dresser of a super-grinding bearing outer ring raceway grinding wheel and a dressing method. The dresser comprises a base sleeve, a servo motor, a sleeve, an upper end cover, an upper hydrostatic bearing, a lower end cover, a lower hydrostatic bearing, a pen chuck, a corundum pen and a spindle, wherein the sleeve is sleeved by the base sleeve, the spindle is sleeved by the sleeve, the upper end cover and the lower end cover are respectively arranged at the upper end and the lower end of the sleeve, the upper hydrostatic bearing and the lower hydrostatic bearing are supported between the spindle and the sleeve, the pen chuck is installed at the lower end of the spindle, the corundum pen is installed on the pen chuck, and the servo motor is connected with the upper end of the spindle. The dressing method comprises the steps of S1, enabling the grinding wheel to be in contact with the corundum pen of the static pressure dresser; S2, setting the contact position of the corundum pen and the grinding wheel and a rotating angle of the spindle; S3, starting a grinding wheel driving shaft and the servo motor and beginning to perform grinding trimming on the grinding wheel; S4, enabling the grinding wheel driving shaft and the servo motor to shut down after grinding trimming and moving away the corundum pen.

The invention relates to a multifunctional automatic fish-searching raft fishing pole-supporting device and a raft fishing pole-supporting device front bracket structure. The device and the structure are used for helping a person raft fishing to reduce the manually holding time of a fishing pole and for reducing the dependence of fishing line casting and retracting on human effort. The device comprises a front bracket, a back bracket, a support, and a control display device. The control display device has a housing. The front bracket is connected with the housing through a front bracket tube, and the back bracket is connected with the housing through a back bracket tube. A fishing line gap is formed in the pole supporting face of the front bracket. A stepper motor, a gear, a gear shaft, a main pressure rubber line wheel and an auxiliary pressure rubber line wheel are arranged in the inner cavity of the front bracket. The main pressure rubber line wheel is fixed on one end of the gear shaft, and the gear is fixed on the other end of the gear shaft. The stepper motor is engaged with the gear through an output shaft gear. The auxiliary pressure rubber line wheel is arranged on a frame performing linear orbit movements. The frame is pressed by a spring with one end pressed against the front bracket body, in the direction along a linear orbit. With the device and the structure provided by the invention, a line outlet speed is stable, the weight of raft fishing sinkers is reduced, and the capacity of accurate control over line outlet length is improved.

The invention belongs to the field of mining hydraulic motors, and particularly discloses a horizontal hydraulic cylinder type motor. The horizontal hydraulic cylinder type motor aims to achieve the technical purposes that the structure is simple, operation is convenient, safety coefficients are high, service life is long, and the underground coal mine accident rate can be effectively reduced. The horizontal hydraulic cylinder type motor comprises a box, three hydraulic cylinders, a crankshaft, a box front end assembly and a control system. An installing seat board is arranged at the bottom of the box, the hydraulic cylinders are arranged in the box side by side, the ends of pistons of the hydraulic cylinders are connected with the crankshaft through piston end covers, the output end of the crankshaft and the installing seat board are arranged on the same side, the hydraulic cylinders move in a reciprocating mode to drive the crankshaft to rotate, the crankshaft drives the control system to move, the control system controls reciprocating motion of the three hydraulic cylinders to drive the crankshaft to conduct continuous rotational motion, the hydraulic cylinders drive the crankshaft to rotate, the rotating speed is low, torque is large, and the horizontal hydraulic cylinder type motor meets the requirements for use of underground coal mine equipment.

The invention relates to a multifunctional automatic fish-searching raft fishing pole-supporting device and a raft fishing pole-supporting device front bracket structure. The device and the structure are used for helping a person raft fishing to reduce the manually holding time of a fishing pole and for reducing the dependence of fishing line casting and retracting on human effort. The device comprises a front bracket, a back bracket, a support, and a control display device. The control display device has a housing. The front bracket is connected with the housing through a front bracket tube, and the back bracket is connected with the housing through a back bracket tube. A fishing line gap is formed in the pole supporting face of the front bracket. A stepper motor, a gear, a gear shaft, a main pressure rubber line wheel and an auxiliary pressure rubber line wheel are arranged in the inner cavity of the front bracket. The main pressure rubber line wheel is fixed on one end of the gear shaft, and the gear is fixed on the other end of the gear shaft. The stepper motor is engaged with the gear through an output shaft gear. The auxiliary pressure rubber line wheel is arranged on a frame performing linear orbit movements. The frame is pressed by a spring with one end pressed against the front bracket body, in the direction along a linear orbit. With the device and the structure provided by the invention, a line outlet speed is stable, the weight of raft fishing sinkers is reduced, and the capacity of accurate control over line outlet length is improved.

The invention relates to the technical field of drying devices, and discloses a drying device of L-ascorbate-2-phosphate. The drying device comprises a drier. A first grading plate is installed in thedrier. A flow guide pipe located above the first grading plate is installed in the drier. A first flow stop pipe is installed in the flow guide pipe. By means of a drying method and device of L-ascorbate-2-phosphate, by using the first flow stop pipe and a first buffering area in cooperation, L-ascorbate-2-phosphate powder rising at a high speed is instantly buffered and enters a second flow stoppipe and a second buffering area through the first flow stop pipe and the first buffering area, the rising speed of the L-ascorbate-2-phosphate powder is reduced, on one hand, the problem that poweris attached to a pipe wall is solved, and on the other hand, the problem that the powder is driven by force to impact on the pipe wall is solved, the finally-discharged L-ascorbate-2-phosphate powderis discharged out of the drier at a constant speed, and the powder discharging speed is kept stable.

The invention discloses a device for measuring the flow and wind velocity of a stator and a rotor of a large power generator, and belongs to the electrical field. The problem that due to limitation of space of the power generator and influences of the complex electromagnetic field in a motor on measurement, the flow and wind velocity of the stator and the rotor of the large power generator and the flow and wind velocity in an air gap between the stator and the rotor of the large power generator are very difficult to measure in an actual motor and other problems are solved through the device. A rotor solid body provided with an auxiliary groove ventilating duct, a radial ventilating duct and a rotor groove is arranged, the auxiliary groove ventilating duct, the radial ventilating duct and the rotor groove are the same as those of a rotor of a turbonator, and a wooden stator core and stator windings are arranged on a stator side. Forward extending type wind velocity measuring sensors are arranged at the back portion of a stator yoke, in the air gap between the stator and the rotor and in the position of an air deflector of a tube-axial fan respectively, and the wind velocity in the device can be monitored. By synchronously adjusting output frequencies of two frequency converters in the whole measuring device, the aim of adjusting the rotating speed of an electric motor is achieved. The flow and flow velocity of the stator and the rotor of the large power generator and the flow and flow velocity in the air gap between the stator and the rotor of the large power generator can be accurately measured through the device, high experimental expenses are prevented, and the device has the advantages of being accurate in measurement, easy to obtain and the like.

Disclosed is a roller type force balancing unit pump. A rolling bearing is mounted between a right coupling and a right roller assembly. Left and right cams are symmetrically distributed on both sidesof a pump core assembly with the phase difference of 90 DEG. A roller assembly rolls on the cam surfaces. Four conical rollers are distributed on the single side. Every two conical rollers are fixedto a C-shaped roller support as a group through a pin shaft. A copper sleeve of a pump core assembly and a cylinder body are respectively provided with two pairs of rectangular high pressure and low pressure oil holes uniformly distributed in the circumferential direction. The rectangular high pressure and low pressure oil holes correspondingly make contact with first and second flow distributiongrooves in the upper portions of a piston to suck and discharge oil. The cylinder body is provided with an annular oil groove communicating with the high-pressure oil holes, and oil liquid flowing outof the two high-pressure oil holes is collected together. The mass of a rotor which is composed of a first roller support assembly, a third roller support assembly, a transmission shaft and left andright concentric rings should be equal to the sum of the mass of a rotor which is composed of a second roller set, a fourth roller support assembly and the piston. First high pressure and low pressurecavities in a pump core communicate with the first flow distribution groove of the piston all the time. Second high pressure and low pressure cavities communicate with the second flow distribution groove of the piston all the time.

The invention discloses a multifunctional lower limb rehabilitation moped, belongs to the technical field of medical apparatus and instruments, and relates to a power assisting device for providing rehabilitation training for a patient with the lower limb walking dysfunction due to illness. The moped is characterized in that rolling wheels are arranged on the lower portion of a chassis, a rack is fixed to the chassis, sprocket chain transmission mechanisms are arranged on the two sides of the rack, a pair of sprockets of the sprocket chain transmission mechanisms are fixedly connected with a transmission shaft, and the transmission shaft is fixedly sleeved with a worm gear reducer; a direct current motor is fixedly arranged above a shell of the worm gear reducer, the power output end of the direct current motor is fixedly connected with the input end of the worm gear reducer, and chains of the sprocket chain transmission mechanisms are fixedly connected with a lifting mechanism through connecting pieces; supporting mechanisms are connected to a cross beam of the lifting mechanism. By the adoption of the moped, the function that the supporting mechanisms on the underarms of the patient are always with the patient and are moved to a rehabilitation robot along with the patient when the patient is moved from a wheelchair to the rehabilitation robot is achieved.

The invention discloses an electromagnetic reduction roasting method and an electromagnetic reduction roasting device for manganese oxide ores. The method comprises the following steps: winding LC oscillator circuits (9) outside a roasting tube (8); and enabling the LC oscillator circuits (9) to generate alternating magnetic fields which enable the roasting tube (8) in the LC oscillator circuits (9) to induct and then to heat so as to provide a reaction environment for the manganese oxide ores in the roasting tube (8). The device comprises the roasting tube which is vertically arranged, wherein a feeding hole is formed in the top end of the roasting tube; two LC oscillator circuits are wound outside the roasting tube; a winding spacing of the LC oscillator circuit wound on the upper half part of the roasting tube is 100-300 mm, and the corresponding LC oscillator circuit is used as a pre-heating section; and a winding spacing of the LC oscillator circuit wound on the lower half part of the roasting tube is 20-100mm, and the corresponding LC oscillator circuit is used as a reducing section. The electromagnetic reduction roasting device has the beneficial effects of being energy-saving, uniform in temperature, long in service life, continuous in discharge, and good in operation environment.

The invention discloses an automatic hydraulic generating speed bump device. A modularized installing mode is adopted. The automatic hydraulic generating speed bump device specifically comprises a pulse-type power source module, a continuous energy supply module and a generating module. Hydraulic circuit connection is adopted between the modules. The pulse-type power source module comprises a camlink mechanism, a plunger-type cylinder, a throttle valve, a piston cylinder, a one-way valve, a spring, a filter, a pilot-type overflow valve, a damper and a two-bit two-way magnetic exchange valve.The continuous energy supply module comprises a two-bit three-way magnetic exchange valve and an energy accumulator. According to the automatic hydraulic generating speed bump device, a pulse-type power source is adopted, so energy charged into the energy accumulator by a system within unit time is improved; a mode of alternate charging of the double energy accumulators is adopted, so a problem that the energy cannot be recovered while the single energy accumulator discharges the energy is solved; and vibration energy generated while a vehicle passes through a speed bump is converted to electric energy and secondary utilization is performed. The automatic hydraulic generating speed bump device is good in applicability, high in energy recycling efficiency, and strong in reliability.

The invention discloses a light-weight stepless gearbox, which comprises a flow regulating valve, a colloid power pump, a gearbox body and a gearbox cover, wherein the gearbox body and the gearbox cover are installed in a matched way through fixing screw bolts, a power input shaft is arranged on the gearbox cover, a speed regulating power output shaft is arranged on the power input shaft, a power input gear is arranged on the power input shaft, a speed regulating power output gear is arranged on the speed regulating power output shaft, a speed regulating gear support frame is arranged on the speed regulating power output gear, a speed regulating gear is arranged on the speed regulating gear support frame, a third bearing is arranged on the gearbox body, a power output shaft is arranged on the third bearing, a power output gear is arranged on the power output shaft, and the colloid power pump is arranged on the gearbox body, and is connected with the flow regulating valve through a glue liquid return pipe and a glue liquid outlet pipe in a matched way. The light-weight stepless gearbox has the advantages that the constant speed output can be realized, the control precision is high, and the structure is simple.

The invention discloses a light-weight stepless gearbox, which comprises a flow regulating valve, a colloid power pump, a gearbox body and a gearbox cover, wherein the gearbox body and the gearbox cover are installed in a matched way through fixing screw bolts, a power input shaft is arranged on the gearbox cover, a speed regulating power output shaft is arranged on the power input shaft, a power input gear is arranged on the power input shaft, a speed regulating power output gear is arranged on the speed regulating power output shaft, a speed regulating gear support frame is arranged on the speed regulating power output gear, a speed regulating gear is arranged on the speed regulating gear support frame, a third bearing is arranged on the gearbox body, a power output shaft is arranged on the third bearing, a power output gear is arranged on the power output shaft, and the colloid power pump is arranged on the gearbox body, and is connected with the flow regulating valve through a glue liquid return pipe and a glue liquid outlet pipe in a matched way. The light-weight stepless gearbox has the advantages that the constant speed output can be realized, the control precision is high, and the structure is simple.

The invention relates to a high-speed hydraulic oil pump ground driving structure and a driving method thereof, belongs to a hydraulic oil pump driving technology, and particularly relates to a mode that a direct-current motor stably transmits motor power to a hydraulic oil pump through a synchronous toothed belt. According to the invention, a high-speed rotating shaft on a high-speed rotating shaft lubricating box is connected with a synchronous toothed belt, the other end of the synchronous toothed belt is connected with a direct-current motor through a motor rotating speed disc, and the direct-current motor is installed on an installation frame through a motor adjusting frame; the speed regulation precision is improved, and the speed regulation range is wider; the processing cost is low, the process requirement is simple, and repair and maintenance are easy; and the rate is high, the rotating speed characteristic is good, and the rotating speed can be stabilized at a given instruction value at a very high speed.

The invention relates to the technical field of rice processing, and discloses an automatic rice surface polishing device based on gravitational potential energy intelligent manufacturing. The automatic rice surface polishing device comprises a shell; the surface of a rotating turbine is fixedly connected with a rotating screw rod, and the surface of the rotating screw rod is engaged with a driving gear; the driving gear is connected with an automatic polishing mechanism and a flow speed control impurity removal mechanism; after rice enters the device from a material passing pipeline, flowing of the rice drives the rotating turbine to rotate, the rotating turbine rotates to drive polishing blocks to do reciprocating motion, and the vertically-symmetrical polishing blocks are opposite in motion direction; meanwhile, an arc-shaped transmission rod swings to drive an extrusion block to extrude water in an inner cavity in a reciprocating mode, the water extrudes a secondary pressurizing block to compress a secondary pressurizing spring, and after the pressure is sufficient, the water is sprayed out from small holes blocked by the secondary pressurizing block, so that the water is sprayed out from a water vapor spraying head to the position between polishing blocks in a water vapor mode, and the function of polishing the rice surface is achieved.

The invention belongs to the field of mining hydraulic motors, particularly discloses a walking type hydraulic cylinder motor. The hydraulic cylinder motor with equal distributed angles is simple in structure, convenient to operate, high in safety coefficient, long in service life, is capable of effectively reducing the accident rate under a coal mine. The hydraulic cylinder motor comprises a box body, three hydraulic cylinders, a crank shaft, a box body front end component and a control system, wherein an installing plate fixed together with a tractor is arranged at one side of the box body; the hydraulic cylinders are arranged in the box body side by side; the hydraulic cylinders do reciprocating motion to drive the crankshaft to do rotating motion and the crankshaft drives the control system to move; the control system is used for controlling the three hydraulic cylinders to do reciprocating motion so as to drive the crankshaft to do continuous rotating motion; the hydraulic cylinders drives the crankshaft to rotate and can be used as left and right input devices of the tractor and a crane so as to drive the tractor and the crane to move simultaneously.

The invention discloses a convenient ribbon embossing device, comprising a fixed base, the left side of the top of the fixed base is fixedly connected with a feeding mechanism, and the center of the top of the fixed base is fixedly connected with an embossing mechanism, and the fixed base is fixedly connected with an embossing mechanism. The left side of the top of the base is fixedly connected with a winding mechanism, and the feeding mechanism includes a fixed block. The number of the fixed blocks is two. The inner cavity of the fixed groove is movably connected with a hexagonal prism block, and the adjacent side of the two hexagonal prism blocks is fixedly connected with a feeding rotating shaft. The present invention achieves the effect of facilitating disassembly and assembly of ribbon rolls through the combined use of fixed blocks, hexagonal prism blocks, clamping blocks, movable blocks, pull rods, springs, clamping slots and fixing slots, thereby greatly facilitating users to replace ribbon rolls. It saves time and labor, thereby improving the working efficiency of the embossing machine, and is suitable for popularization and use.