319 results about "Speed regulator" patented technology

The utility model provides a powder assembly production line for eye shadow production, which comprises a support, a conveying mechanism arranged on the support, a plurality of eye shadow boxes arranged on the conveying mechanism in a linear array, and a plurality of powder assembly work stations arranged along one side of the conveying mechanism in a linear array. The powder assembling work station comprises a cabinet, a mechanical arm mechanism arranged in the cabinet, a conveying assembly arranged close to the mechanical arm mechanism and an upper computer arranged on the cabinet, and eye shadow powder blocks are arranged on the conveying assembly; the conveying mechanism is controlled through a speed regulator, the conveying assembly is controlled through a PLC, the mechanical arm mechanisms are all connected to the upper computers through doMot ion controllers, and the conveying mechanism and the upper computers are all connected to the main computer. According to the powder combining production line for eye shadow production, eye shadow powder blocks of different colors and types can be automatically placed in the eye shadow box, time and labor are saved, the production efficiency is greatly improved, and the production cost is reduced.

Systems and apparatus are provided for a high-power microwave sensor using an unmanned aerial vehicle. The unmanned aerial vehicle may include a central body, at least one electric motor, and a barometric pressure feedthrough. The central body may include a first enclosure housing a plurality of low voltage components, a voltage feedthrough connector, and a second enclosure housing a plurality of high voltage components. The low voltage components may include a first signal processing system, a first radio transceiver, a flight controller, a second signal processing system, a second radio transceiver, and a navigation system. The high voltage components may include a plurality of electronic speed controllers, a power distribution module, an input power interface, and a plurality of high power filters. The components of each enclosure may be segregated such that the high voltage components do not create electromagnetic interference with the low voltage components.

The application provides a permanent magnet eddy current governor for constant torque load heavy load starting and a control method thereof, and belongs to the technical field of permanent magnet eddy current transmission speed regulation. The permanent magnet eddy current governor comprises a conductor cylinder, a magnet disc, a transmission shaft and a magnet disc axial traction mechanism. The conductor cylinder is connected with a motor input shaft, the inner wall of the conductor cylinder is fixed with two groups of annular conductor sleeves, the annular conductor sleeves are divided into starting zones and rated working zones in the axial direction, and the two groups of starting zones are separated by an idle zone. The transmission shaft passes through the rear end of the conductor cylinder, the front end is located in the conductor cylinder, and the rear end is connected with a load output shaft. The magnet disc is installed on the shaft rod of the transmission shaft located in the conductor cylinder, and the outer ring surface of the magnet disc is uniformly distributed with permanent magnets. The magnet disc axial traction mechanism is used for driving two magnet discs to synchronously approach or move away from the center of the idle zone. The application can be used for motor idle starting, heavy load controllable starting, load balancing, speed regulation operation and unloading overload protection of constant torque load.

The invention discloses an unmanned aerial vehicle anti-wind disturbance controller and a control method, and belongs to the technical field of unmanned aerial vehicle flight control. The method runs on an independent processing module which is connected in series between a main flight controller and an electronic speed regulator of the unmanned aerial vehicle, a dynamic reference is constructed by collecting motor current in real time, deviation is calculated, and wind disturbance equivalent disturbance torque is estimated in a prospective mode through a third-order linear extended state observer (LESO) with bandwidth parameterization design; in combination with a'user operation state + flight mode 'two-dimensional intelligent decision compensation strategy, a'look-ahead wind resistance + attitude backup' dual-redundancy channel is matched, so that the wind disturbance is compensated in advance, and the flight stability in a complex scene is ensured. A corresponding controller adopts a standardized independent hardware design, the adaptability is high, the integration cost is low, and the method can be widely applied to high-precision operation scenes of various multi-rotor unmanned aerial vehicles.

The invention discloses a power battery pole coiled material composite coating system and method based on plasma activation, and relates to the technical field of power battery pole material manufacturing. The unwinding device consists of an unwinding roller, a tension sensor and a speed regulator, and conveys the pole coiled material at constant tension and speed; the cavity is a sealed vacuum cavity, is provided with an electrode plate, a gas ingress pipe and a vacuum extraction opening, and is internally provided with a detector for monitoring a plasma state; the coating chamber comprises a first coating chamber, a second coating chamber and a transition vacuum cavity; a thickness gauge, a spectrograph and the like are used for monitoring film layer parameters; graded cooling is adopted, and the gas humidity is controlled; the coiled material winding module is used for maintaining tension stability and correcting deviation; and communicating with each module, adjusting parameters and generating a log. According to the invention, the activation consistency of the pole coiled material and the adhesion force of the film layer are improved, the thickness uniformity and density of the coating film are optimized, multi-parameter monitoring is perfected to find defects in time, the stress of the film layer is reduced by graded cooling, the performance and production efficiency of the pole material are guaranteed, and the manufacturing requirements of power batteries are met.

The invention relates to the technical field of backwash filtering tanks, and discloses a backwash filtering device and method for recharging geothermal tail water, and the backwash filtering device for recharging geothermal tail water comprises a shell, the sewage discharge pipe is arranged at the bottom of the shell, the inner cylinder is arranged in the center of the shell, the upper baffle ring and the lower baffle ring are respectively arranged on the upper end face and the lower end face of the inner cylinder and are connected with the shell, the filter cartridges are arranged on the outer side of the inner cylinder and are communicated with the upper baffle ring and the lower baffle ring, and the rotating shaft is rotationally arranged in the center of the shell and is rotationally connected with a sewage discharge arm; the pollution discharge arm is matched with any filter cartridge when rotating, and the pollution discharge arm is rotationally connected with a pollution discharge pipe; the turbine is arranged in the blowdown arm and is driven by the backflushing fluid; the centrifugal speed regulator is driven by the turbine, and the locking and releasing mechanism is triggered by the centrifugal speed regulator at a set rotating speed; and when the back-flushing flow is as low as a set value, the centrifugal speed regulator triggers the locking and releasing mechanism, so that the blow-off pipe rotates to the lower end of the next filter cartridge.

The utility model relates to the field of electric vehicle accessories, and discloses an electric vehicle head vertical handle with an embedded design, which comprises a transverse handle main body and a vertical pipe, a handle stem is arranged in the middle of the transverse handle main body, the transverse handle main body is connected to the vertical pipe through the handle stem, grips are symmetrically connected to two sides of the handle stem, and an instrument display screen is mounted on the top surface of the handle stem. A car lamp button and a horn button are installed on one grip, a shift-up button, a shift-down button and an instrument setting button are installed on the other grip, a speed regulator is further arranged on one side of the instrument setting button, and a protective layer is arranged on the outer side of the grip. Due to the highly-integrated control function, a rider can complete operation without frequently shifting the sight line or the hand position, and riding safety and convenience are improved; due to the embedded design, water can be prevented from entering, the situation of damage caused by collision is reduced, and the durability of the product is improved; and in combination with an intelligent management system, more personalized and convenient use experience is provided for a rider.

A control method for the analog input / output setting mode of a hydro-generator monitoring system includes a newly added program for identifying input / output pulses. The control logic is as follows: ① If an input pulse command of 1 is detected, the analog input / output setting value = analog input / output setting value + fixed step size; otherwise, the analog input / output setting value remains unchanged. ② If an input pulse command of 1 is detected, the analog input / output setting value = analog input / output setting value - fixed step size; otherwise, the analog input / output setting value remains unchanged. A new analog input / output setting value initialization program is also included, employing the following control logic: When other control modes are switched to analog input / output setting mode, the current input / output setting feedback value sent by the governor is assigned to the analog input / output setting value as the initial value. This invention can improve the guide vane opening and active power regulation speed, enhance equipment stability and reliability, reduce intermediate links and fault points, lower equipment failure rate, and ensure the safe, stable, and high-quality operation of the generator unit and the power grid.

The utility model discloses a portable individual soldier water purifier test tool, comprising a tool main body, the main body is provided with a water receiving tank, the water receiving tank is connected with a filter screen assembly, the tool main body is connected with a guide rail, a gear motor and a mounting plate, the mounting plate is connected with a control switch, a mobile power supply and a speed regulator, and the speed regulator is connected with the gear motor. The gear motor and the mobile power source are connected through a control switch, the gear motor is connected with a first connecting shaft through a first connecting rod, the two ends of the first connecting shaft are connected with second connecting rods, the second connecting rods are connected with first movable sliding blocks through first fixing blocks, a third connecting shaft is connected between the two first fixing blocks, and the third connecting shaft is connected with an individual-soldier water purifier through an individual-soldier fixing ring of a fixing support. The guide rails are slidably connected with second movable sliding blocks, the second movable sliding blocks are connected with second fixing blocks, a second connecting shaft is connected between the two second fixing blocks, and the second connecting shaft is connected with the single-soldier water purifier through a single-soldier handle of a third connecting rod. The device is convenient to carry and use, is precise and adjustable in frequency, is designed in a stress dispersion manner, and is flexible in adaptation and neat in testing.

The utility model provides a viscosity testing device for a heat reflection coating, relates to the technical field of coating processing equipment, and solves the problem of limited measuring range in the prior art by arranging a plurality of rotors to be correspondingly matched with rotating speed regulators with different rotating speed ranges. The device has the advantage of expanding the test range to adapt to heat-reflecting coatings with different viscosities.

The utility model discloses a rotary tablet press, and relates to the technical field of medicine tablet forming equipment, the rotary tablet press comprises a rack body, the top of the rack body is fixedly connected with an upper cover plate, the upper part of the upper cover plate is fixedly connected with a speed regulation stabilizer, and the speed regulation stabilizer is internally and movably connected with a blanking speed regulator; wherein the discharging speed regulator comprises end shaft rod frames which are symmetrically and fixedly connected with the upper cover plate, conical friction rollers which are staggered with each other are movably connected into the two end shaft rod frames, and the outer sides of the two staggered conical friction rollers are sleeved with a driving belt; the end part of one conical friction roller penetrates through the end part shaft rod frame and is fixedly connected with a partition plate impeller; according to the utility model, as the section of the conical friction roller is conical, the transmission ratio is adjusted by adjusting the position of the driving belt on the conical friction roller, so that the rotating speed of the partition plate impeller is controlled, and the blanking amount is further adjusted.

The invention discloses a cylindrical magnetic wheel speed regulator based on a high-strength magnetic circuit arrangement structure, which comprises a first bearing body and a second bearing body, the first bearing body and the second bearing body are respectively connected with a transmission shaft rod, a plurality of groups of carrier layers are concentrically distributed on the first bearing body, and two adjacent groups of carrier layers form an accommodating gap. A plurality of groups of carrier layers are concentrically distributed on the first bearing body, at least one of a permanent magnet layer and a conductor layer is arranged on each group of carrier layers, a plurality of groups of supporting body layers are concentrically distributed on the second bearing body, at least one of a permanent magnet layer and a conductor layer is arranged on each group of supporting body layers, and each group of supporting body layers can be connected into one group of containing gaps, so that magnetic field lines generated by the permanent magnet layers penetrate through the conductor layers; compared with an existing N-pole and S-pole alternate arrangement mode, the permanent magnet speed regulator has the advantages that the magnetic field can be effectively increased, the torque transmission effect can be effectively improved, the service power of the permanent magnet speed regulator is increased, the size of the permanent magnet speed regulator is reduced, the occupied space is reduced, and the installation difficulty is reduced.

1. Name of the product in this design: Electronic speed controller (FT85CS-WP waterproof version). 2. Purpose of this design: This design is an electronic speed controller that adjusts the speed of a motor according to a signal control and is waterproof. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

This invention discloses a method for the collaborative optimization of turbine governor parameters and hydraulic system parameters. The method involves synchronously collecting multi-source operating data from a hydropower station using a sensor network to construct a hydraulic-governing coupled state-space model. Based on the UKF unscented Kalman filter algorithm, the method identifies the water flow inertial time constant, water hammer wave velocity, and turbine integrated transfer coefficient online, and evaluates the reliability of the identification results using a parameter identification confidence index. In a joint high-dimensional space of the control parameter domain and the hydraulic parameter domain, the method uses regulation quality, hydraulic safety, and grid stability as three objective optimization functions to solve for the Pareto front candidate set, and selects robust parameter schemes using a robust stability margin index. A three-level differentiated push strategy is implemented based on the parameter change amplitude, and real-time monitoring and an automatic anomaly backoff mechanism are implemented during the gradual push process. This invention achieves full-cycle collaborative optimization and safe tuning of hydraulic system parameters and governor control parameters.

A kind of unmanned aerial vehicle motor vibration suppression circuit, the vibration data of multiple motors are respectively collected by multiple vibration sensors, and the data transmission is transmitted to single-chip microcomputer synchronously, after the algorithm process of multiple sensor fusion→kalman filtering→LSTM prediction→self-adaptive PID in single-chip microcomputer, the PWM control signal capable of inhibiting vibration is output to multiple electronic speed regulators of brushless, to regulate and control the rotating speed of multiple motors respectively, and the rotating speed of motor after regulation and control can effectively reduce the vibration of multiple motors, finally realize the motor vibration suppression effect of entire unmanned aerial vehicle, improve the flight stability, camera imaging quality and equipment reliability of unmanned aerial vehicle.

The utility model provides a diesel generator mechanical speed regulator test bench. The diesel generator mechanical speed regulator test bench comprises a mechanical speed regulator, a mechanical speed regulation transmission case, a detection device and an instrument panel. Wherein the mechanical speed regulator is arranged on the mechanical speed regulation transmission case through a base and is controlled to operate through the mechanical speed regulation transmission case; the mechanical speed regulation transmission case is connected with a lower computer device and an electronic speed regulator of the intelligent verification device, and operates based on test signals received from the lower computer device and the electronic speed regulator. The detection equipment is arranged on the mechanical speed regulator, is connected with the lower computer equipment and is used for transmitting detected operation parameters of the mechanical speed regulator to the lower computer equipment; and the instrument panel is arranged behind the mechanical speed regulator, is respectively connected with the mechanical speed regulator and the mechanical speed regulation transmission case, and is used for displaying operation parameters of the mechanical speed regulator. The operation state of the diesel engine speed regulation system can be monitored, the fault judgment and decision time is shortened, the factory return test verification cost of a mechanical speed regulator can be remarkably reduced, and the reliability and usability of the speed regulation system are guaranteed.

The invention provides an intelligent water turbine control method based on a digital speed regulator, which comprises the following steps of: forming a first data set by collecting rotating speed frequency, active power and water head signals of a water turbine generator set, and providing a basic data source for a control decision; performing credibility verification on the first data set through a physical rule, generating a verified second data set, and ensuring that the data input into the control logic is accurate and credible; based on the second data set, dynamically selecting at least two control algorithms adaptive to the working condition, fusing the outputs of the algorithms, and calculating to obtain an accurate guide vane opening control instruction, so as to solve the problem of insufficient adaptability of a single algorithm; then the guide vane opening control instruction is converted into a driving signal to operate an electro-hydraulic follow-up system, and adjustment of the guide vane opening is achieved; and finally, guide vane opening feedback is obtained, an instruction and the feedback are compared to generate evaluation data, and control algorithm parameters are adaptively corrected according to the evaluation data, so that the problem that the control effect of a single control algorithm on the water-turbine generator set is poor is solved.

The invention relates to the technical field of hydroelectric generating set adjusting system power control, in particular to a hydroelectric generating set adjusting system optimal LQR power control method based on an improved dogvessel squirt algorithm, which comprises the following steps of: establishing a full-link state space model covering a water delivery system, a water turbine, a generator, an excitation system and a power grid; the hydraulic-mechanical-electromagnetic-power grid coupling dynamic state is accurately reflected; a state weighting matrix and a control weighting matrix of a linear quadratic regulator LQR are optimized based on an improved dogvessel squirt algorithm, and the bottleneck of traditional manual trial and error is broken through; and solving the algebraic Riccati equation to obtain an optimal feedback gain, and generating a control law to act on the speed regulator. Simulation verification shows that compared with traditional PID control, the method has the advantages that under step load disturbance and random power fluctuation, power angle and rotating speed oscillation can be remarkably restrained, volute water pressure impact can be weakened, the power tracking speed can be increased, the dynamic adjusting performance and robustness of the system can be improved, and the method is suitable for complex power grid operation conditions.

1. The name of the design product: electronic speed controller (5-12S120A). 2. The use of the design product: the design product is an electronic speed controller, which adjusts the speed of the motor according to signal control; it is suitable for unmanned aerial vehicles, fixed-wing aircraft, RC cars, model ships, etc. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

The utility model relates to flange end face processing machine control box technical field discloses a kind of servo motor control box for flange end face processing machine, including box, adopt metal material to make, surface is equipped with corrosion-resistant coating, servo motor controller, be in box, with the servo motor electric connection of flange end face processing machine, heat dissipation component, including the heat dissipation hole of the heat conduction plate and box side portion that coincide servo motor controller, protective structure, including the sealing rubber sleeve of box inlet and outlet line mouth and surface dustproof cover, shockproof base, be in box bottom, contain elastic pad, connecting structure: box is detachably connected with flange end face processing machine main body by conversion sleeve. In the utility model, conversion sleeve is adapted to different specifications processing machine and servo motor, fast insertion type single electric wire simplifies connection, knob type speed regulator is convenient to operate, solve traditional motor connection complex, speed difficult control problem, improve adaptability and operating efficiency.

The application discloses a control method for primary frequency modulation in a power dead zone range of a hydroelectric generating set, and belongs to the technical field of hydroelectric generating set regulation. The method comprises the following steps: S1, calculating H1 and H2 of a water diversion system according to the water flow inertia time constant of the water diversion system and the mechanical inertia time constant of the generating set; S2, calculating a dynamic analytical expression of the generating set power when a frequency unit step disturbance occurs; S3, calculating a first-order differential link coefficient decomposed by a second-order correction link based on the dynamic analytical expression of the generating set power; and S4, calculating the output of a PID speed regulator in a current sampling period. The scheme calculates the oscillation link transfer function parameters in a dynamic process, and a second-order system correction transfer function of a frequency given value is designed on the basis, so that the oscillation phenomenon of the generating set power does not occur when the frequency given value of the generating set changes, the problem that the power exceeds the power dead zone in the dynamic process is prevented, and a limiting link is arranged at the frequency deviation value to ensure that the power steady-state value exceeds the power dead zone range.

The utility model discloses a double chain disc transmission relates to bicycle technical field, including the speed regulator of being located on handle and the speed change piece on the vehicle body, and the speed regulator is connected with the speed change piece through the speed change line, including double chain disc transmission, and the double chain disc transmission includes the gear change disc, low speed chain disc, high speed chain disc and crank that combine in proper order, and low speed chain disc is fixedly connected with the crank, and high speed chain disc is connected with the crank through the bearing, and low speed chain disc and high speed chain disc are separately connected with the chain respectively, and the linkage mechanism is equipped on the crank, and the control of high speed chain disc is carried out through the interaction between the gear change mechanism on the gear change disc and the linkage mechanism on the crank. The utility model discloses through low speed chain disc, high speed chain disc connects and drives respective chain respectively, and the gear change disc is used to control the switching of gear, and the gear change is stable and easy 360 degrees dead angle free, will not stir the chain separation of chain, and all internal parts are realized through mechanical structure, and do not involve any electronic device, and the production manufacturing cost is low.

The invention relates to the field of operation equipment, and provides a rotor component, a robot body and an air operation robot system.The rotor component comprises at least four rotor power suites, rotors of the rotor power suites, motors and electronic speed regulators, controllable thrust is generated when the rotors work, the thrust generated by the rotors has thrust vectors, and the thrust vectors are equal to the thrust vectors. The at least four thrust vectors jointly drive the controlled object to generate controllable linear displacement and / or angular displacement, and the resultant thrust has adjustable components in at least two mutually perpendicular directions; the torque of thrust generated by the at least four rotor power suites to the gravity center of a controlled object generates adjustable non-zero resultant torque in the normal direction of a thrust projection plane.

The invention belongs to the technical field of power system control, and the method comprises the following steps: improving a manual failure area unit of primary frequency modulation, when a frequency deviation delta F'exceeds a frequency dead zone Ef, increasing a superposition amount for the calculated frequency deviation delta F, and when primary frequency modulation action is carried out, adding a delay filtering link; optimization is carried out on the superposition amount and the delay link for adaptive adjustment, and prediction and multi-stage frequency modulation are carried out during a primary frequency modulation action; and when the primary frequency is reset, a return difference link is added. According to the method, the algorithm of the manual failure area is improved, a step-type frequency superposition amount is added to the calculated frequency difference, and the adjustment amount of frequency modulation is increased, so that the problem of insufficient integration of frequency modulation is overcome; when the frequency deviation is weak, a step type is added to form a larger output signal, the signal output form is a sudden change form, and the dead zone of each link is overcome; time delay and return difference are increased, and frequent jitter which is useless for primary frequency modulation and is caused by frequency crossing of a frequency dead zone edge of a power grid system is prevented.

The utility model discloses a kind of polishing mechanisms for optical instrument processing, including drive assembly, drive assembly output end connection is equipped with grinding wheel, grinding wheel side is provided with water spraying device, drive assembly side is provided with speed regulator, and speed regulator includes fixed pipe, standpipe, adjust sleeve, moving block, conical frame, cooperation lever, cooperation sleeve and moving groove, conical frame outside is slidably connected with moving block by moving groove, cooperation lever is connected at one end of conical frame, cooperation sleeve is connected in adjust sleeve inside, fixed pipe outside is equipped with fastening mechanism, and fastening mechanism includes screw rod, large gear, fixed plate, fastening sleeve, fastening spring, fastening block, pinion, rotating sleeve, screw sleeve and cylindrical block, screw rod is connected at one side of fastening sleeve, large gear is connected at one side of rotating sleeve, fastening spring is connected with fastening block, pinion is installed at the top end of screw sleeve, the utility model realizes dust fall treatment, and realizes the adjustment of cooling water conveying speed at the same time, and the structural stability after adjustment is guaranteed.

The application discloses a kind of permanent magnet synchronous motor electric shovel speed regulation system and motor control method, belong to mining equipment technical field, including: main transformer, rectification feedback unit, several permanent magnet synchronous motors, several frequency converters and voltage suppressor, by using permanent magnet synchronous motor as power source, the efficiency and power factor of motor in low speed area are higher, realize efficient, energy-saving green mining, electric shovel each mechanism can also adopt direct drive or half direct drive mode, reduce mechanism transmission series, further improve transmission efficiency and equipment reliability;Since the rotor of permanent magnet synchronous motor is permanent magnet, when the frequency converter fails and the brake fails at the same time, the motor will generate back electromotive force when being pulled by potential energy load, according to the power generation characteristics of permanent magnet synchronous motor, the stator is short-circuited through energy consumption device, which will generate braking torque in permanent magnet synchronous motor, so as to brake the bucket, avoid the bucket falling rapidly, electric shovel out of control accident.

The utility model relates to an integrated cabinet structure for controlling, monitoring and protecting a steam turbine, which belongs to the technical field of communication equipment and comprises a control monitoring cabinet, a state monitor, a speed regulator, a two-out-of-three tripping protector and a state monitoring display are arranged in the control monitoring cabinet, and the state monitor, the speed regulator, the two-out-of-three tripping protector and the state monitoring display are arranged on the front portion of the control monitoring cabinet. The control monitoring cabinet is internally provided with a relay and a terminal strip at the rear part, and the relay and the terminal strip are adopted to carry out circuit communication on the state monitor, the speed regulator, the two-out-of-three tripping protector and the state monitoring display. The device is compact in structure, complete in function, convenient to operate and good in operation stability. The integrated, standardized and modularized design concepts are applied to the speed regulation control and monitoring security system of the small steam turbine, the overall performance of the system can be improved, and the reliability and maintenance convenience of the system can be remarkably improved.

The utility model relates to the field of water and electricity station speed regulator relay, specifically discloses a speed regulator relay lock spindle block anti -misdrop device for preventing lock spindle block misdrop into speed regulator, relay, including two lock spindle pins, screw rod, locking lever and limiting piece, both ends of two lock spindle pins all are provided with bolt mouth, screw rod passes bolt mouth one end of two lock spindle pins in proper order, and is limited through the nut welded in screw rod both ends, one end of locking lever is provided with limiting cap, the other end of locking lever is provided with limiting hole, the other end of locking lever passes bolt mouth the other end of two lock spindle pins in proper order and is detachably connected through limiting hole and limiting piece. The utility model passes through two lock spindle pins and passes through the through -hole on lock spindle block, one end of two lock spindle pins is fixedly connected through screw rod and nut, and the other end of two lock spindle pins is fixedly connected through locking lever and limiting piece, solves the problem that lock spindle block misfeeds relay, speed regulator.

The manual setting method for the electrical neutral position of the pilot valve in the hydraulic servo system of the speed controller includes the following steps: Step 1: After the stepper motor is re-centered, the valve core position of the pilot valve is set to the electrical neutral position when the control system returns to the balanced state, and the electrical neutral position value Y of the pilot valve is recorded. 中 Proceed to step 2; Step 2: Set the electrical neutral position of the main pressure regulating valve and record the electrical neutral position value Z of the main pressure regulating valve. 中 Proceed to step 3; Step 3: In the electric / manual mode of the speed governor, perform a step test on the directional guide vanes. After the system stabilizes following the test, record the Z value of the main pressure valve position feedback channel at this time. 开 Step 4: Perform a step test on the closing guide vane opening. The conditions can be the same as those for the step test on the opening guide vane opening. After the system stabilizes following the test, record the Z value of the main pressure regulating valve position feedback channel at this time. 关 Step 5: Perform electrical neutral position setting of the speed controller pilot valve. The pilot valve electrical neutral position setting method of the present invention is simple and efficient, and the setting results are accurate and reliable.

A power distribution box is fixedly arranged on a main frame, storage battery cabins are fixedly arranged on the left side and the right side of the main frame respectively, sliding rails are arranged in the storage battery cabins in the front-back direction, a bracket is arranged on the sliding rails in a sliding connection mode, the bracket bears storage batteries, and the two storage batteries are connected in series to supply power to the power distribution box. The power distribution box is provided with a remote control receiver and a motor speed regulator, the front side and the rear side of the main frame are each fixedly provided with a rotating motor, the rotating motors are controlled by the motor speed regulator, and the rotating motors drive the lower rotary support to rotate. The upper end of the lifting hook is hinged with the lower end of the lifting hook seat; according to the rotary lifting appliance, the rotary motor drives the rotary lower support to rotate, the rotary lower support rotates to drive the lifting hook seat and the lifting hook to rotate, so that the lifting hook rotates, the rotary lower support increases the loadable weight of the output shaft of the rotary motor, the lifting hook is hinged to the lifting hook seat, and then the lifting hook seat is hinged to the rotary lower support, so that the angle of the lifting hook can be freely adjusted.