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.

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 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.

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.

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 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.