2542 results about "Motive power" patented technology

The invention discloses a ship main power and auxiliary power real-time switching method and system based on large model optimization, and relates to the technical field of ship power system control, and the method comprises the steps: collecting the operation state data and environment parameters of a ship main power system and an auxiliary power system in real time through a multi-mode sensor array; and performing space-time alignment and noise suppression processing on the operation state data and the environment parameters, inputting the feature subset into a lightweight large model inference engine, generating a multi-target optimization decision set, executing a main and auxiliary power dynamic switching control sequence in a preset time window according to the multi-target optimization decision set, and outputting the main and auxiliary power dynamic switching control sequence. And generating a self-optimization log including a switching efficiency evaluation report and a model iteration suggestion based on the deviation degree of the switching feedback data and a preset performance index. According to the ship main and auxiliary power real-time switching method and system based on large model optimization, stable operation of a ship power system is guaranteed, and meanwhile the service life of equipment is prolonged.

An undercarriage, a middle large rotor and a middle large motor are connected to the lower portion of a fuselage body and sequentially connected to the top of a middle small tower, and the right front portion, the left front portion, the left rear portion and the right rear portion of the fuselage body are correspondingly connected with a right front fuselage arm, a left front fuselage arm, a left rear fuselage arm, a right rear fuselage arm and a power assembly. The connecting line of the rotating centers of the rotors of the four power assemblies is square or rectangular, the rotating directions of the rotors of the power assemblies at the same opposite angles are the same, the rotating directions of the rotors of the power assemblies at different opposite angles are opposite, and the rotating faces of the two rotors opposite to the middle large rotor in rotating direction incline around the axes of the respective arms. The included angle between the rotating surfaces of the two rotors and the horizontal plane is an acute angle beta, the rotating surfaces of the two rotors with the same rotating direction as the middle large rotor incline around respective arm axes, the included angle between the rotating surfaces of the two rotors and the horizontal plane is an acute angle theta, beta is larger than theta, the reaction torque and the horizontal component torque of the rotors jointly drive the aircraft to steer, and the aircraft has the advantages of being long in endurance time, large in load and high in wind resistance. And a universal flight platform is formed.

The invention provides a multifunctional cycle power generation system and method by a gravity lever. The system comprises a supporting rack and a balance weight arranged on the supporting rack and slidably matched with the supporting rack, wherein engines are arranged on one side or two sides of the balance weight; the input shaft of each engine is connected to a transmission shaft; two or more single-directional clutches are fixedly connected to the middle of the transmission shaft; the locking directions of the single-directional clutches are same, gears are fixed to the peripheries of thesingle-directional clutches, and a rack matched with each gear to drive the transmission shaft to rotate is arranged next to each single-directional clutch; at least one pair of racks is arranged on the upper part and the lower part, separately, the racks and the balance weight which reciprocates are in driving movement and the balance weight is arranged on the supporting rack to swing through a lifting mechanism in a reciprocating manner. As the balance weight which swings in the reciprocating manner pulls the racks to drive the transmission shaft to rotate in the single direction, multiple engines can be driven synchronously to generate electricity synchronously, and the power needed by a supporting rack lifting device is alleviated greatly by means of a swing mode like to a lever, so that the energy sources are saved and the power generation efficiency is improved greatly.

The invention belongs to the technical field of cranes, and particularly relates to a compact low-clearance anti-swing crane and an anti-swing method. The device comprises a door frame; a hoist frame; a reel; a transverse driving motor; the hoisting mechanism is in transmission connection with the reel through a steel wire rope; the two groups of upper lifting pulley blocks are mounted on the hoisting frame and are arranged in parallel along the axis direction of the winding drum; the two lower lifting pulley blocks are installed on the lifting mechanism and arranged in parallel in the axis direction of the winding drum. The rotating center line of the upper lifting pulley block and the rotating center of the roller are located on the same plane. And the rotating center line of the lower lifting pulley block is lower than that of the lifting mechanism. The driving motor is transversely arranged, power is transmitted to the winding drum through the gearbox, meanwhile, the static size in the vertical direction is further reduced through the arrangement of the upper and lower pulley blocks with the low gravity center and the design of the lifting hook assembly with the high gravity center, and therefore under the given workshop clearance height, the working efficiency is improved. And the vast majority of vertical space is released to an effective cargo lifting stroke.

The invention relates to an electric propulsion heat dissipation system, a power device and an aircraft, and relates to the technical field of aircrafts. The electric propulsion cooling system comprises propellers, arms, power motors and radiators, the electric propulsion cooling system is fixedly connected to an aircraft body structure of the aircraft through the arms, the propellers are arranged at the output ends of the power motors, and the power motors are installed on the arms and can drive the propellers to rotate around the axes of the power motors. The radiator dissipates heat of the power motor through cooling liquid circulation, the vehicle arms are provided with heat dissipation grooves and air outlets, the radiator is installed in the heat dissipation grooves, and orthographic projections of blades of the propeller on the corresponding surfaces of the vehicle arms at least partially cover the radiator, so that airflow generated by the propeller can penetrate through the radiator and then enter the external space through the air outlets. According to the electric propulsion heat dissipation system, the power device and the aircraft, the problem that the lightweight design of the aircraft is affected due to the fact that a current cooling system is large in size and weight is solved.

The invention discloses an intelligent coal blending method and system for dual-engine staged solution in a power coal scene. The method comprises the following steps: performing structured processing on coal source data and establishing a hundred-ton integer batch variable; the method comprises the following steps of: constructing a hard constraint integer programming (ILP) model, and sequentially executing three stages of solving of cost minimization, heat value deviation minimization under the fixed cost and coal source quantity minimization under the fixed cost and deviation; when any stage is not feasible, automatically switching to a soft constraint target planning (GP) model, performing soft constraint on the coal quality index through a deviation variable, and sequentially performing deviation minimization, cost minimization and coal source quantity minimization; and calculating a combustion stability index (CSI) on the basis of volatile component fluctuation, fixed carbon, ash content change and sulfur content change, and carrying out stability verification on a final coal blending scheme. The system comprises a data management module, a first engine module, a second engine module, an automatic rollback module, a combustion stability index module and a result output module.

The invention discloses an automatic assembling mechanism for railway track fastener nuts, and belongs to the technical field of automatic assembling equipment. The mechanism comprises a mechanical arm, a nut assembling mechanism, a power transmission device, a propelling device, a connecting seat and a visual device, the nut assembling mechanism is composed of a compliant device and a magnetic attraction device, the tail end of a mechanical arm is fixed through a connecting base, a visual device recognizes the position of a fastener in real time and guides the mechanical arm to be positioned, a servo motor transmits torque through a speed reducer and a telescopic universal connecting assembly, nut screwing is achieved, and the compliant device absorbs assembling errors and adapts to the posture. The magnetic attraction device is used for adsorbing and fixing the nut; the six-dimensional force sensor is used for monitoring and feeding back torque in real time; the control system is used for adjusting pre-tightening force; the propelling device is used for applying axial thrust; the device can realize automatic identification, positioning, tightening and pre-tightening control of the nut, and is suitable for various sleeper structures and complex track working conditions.

The invention relates to the technical field of mechanical picking, and discloses a shaking and vibrating harvesting device which comprises a walking mechanism and a rack, and a power unit, a speed control system, an amplitude adjusting system, an output mechanism and an executing mechanism are arranged on the rack; the amplitude adjusting system comprises a supporting bearing seat, an input chain wheel, a power transmission shaft, a spacing output disc and a rope connecting wheel, and the power transmission shaft is arranged on the supporting bearing seat; an input chain wheel and a spacing output disc are arranged at the two ends of the power transmission shaft, and the rope connecting wheel is detachably arranged on the spacing output disc; power output by the power unit is transmitted to an input chain wheel of the amplitude adjusting system through the speed control system; the amplitude adjusting system corresponds to the output mechanism in position, and the executing mechanism is connected to a rope connecting wheel of the amplitude adjusting system and is output after passing through the output mechanism. The walnut harvester is suitable for complex mountain terrains, the shaking vibration amplitude can be adjusted, and the walnut harvesting efficiency is greatly improved.

The invention discloses a construction precision control method for a thin film type fuel cabin of an LNG power-driven ship. The construction precision control method comprises the following steps that main plate pieces of the thin film cabin are segmented, the flatness is controlled, T rows are segmented and prefabricated, and main body plate pieces obtained by segmenting the plate pieces and other assemblies are subjected to component splicing, storage and transportation. Splicing a plurality of sections related to the thin film cabin, assembling the sections after splicing, and welding the sections; and carrying out total assembling and carrying on the segments according to a standard base line, and controlling local and overall flatness of the segments. Through whole-process precision control, it is ensured that the flatness of the inner surface of the film cabin meets the high-standard requirement; a special jig frame, non-welding fixation, symmetrical welding and other measures are adopted, and welding and assembling deformation is effectively restrained; and the construction efficiency is improved, rework is reduced and the production efficiency is improved by using a standardized process and a special tool.

The invention provides a winding drum direct-drive motor and a winding device, and relates to the technical field of steel rolling equipment. The motor and a winding drum are integrated, a mandrel is arranged to be of a hollow structure, a winding drum part is detachably installed in the mandrel, and the mandrel serves as a bearing body for bearing the winding drum part, so that the rigidity and stability of the whole structure are improved; direct power transmission is achieved, a transmission chain is remarkably shortened, and the response precision and the operation efficiency of the system are improved; the inner diameter of the first cavity is the largest, and the inner diameter of the first cavity is gradually reduced in the insertion direction of the winding drum part, so that a guiding effect can be provided during installation of the winding drum part, and the assembly precision and efficiency are ensured; the second cavity is connected with the first cavity and the third cavity, the inner diameter of the second cavity is gradually decreased, smooth transition is formed, stress dispersion of the internal structure of the mandrel is facilitated, meanwhile, the gradient of the inner wall of the second cavity is larger than that of the inner wall of the first cavity, rapid transition from the first cavity to the third cavity is facilitated, and the structural compactness is improved.

The invention discloses a winding drum rope arranging device which comprises a winding drum base, a winding drum, a gear transmission mechanism, a lead screw, a swing roller assembly, a convex shaft and a reversing assembly. The reversing assembly comprises a power assembly and a reversing clutch assembly. The gear transmission mechanism and the lead screw convert rotary motion of the winding drum into linear motion of the swing roller assembly, so that the winding drum moves along with the rope coiling position. When the winding drum is full of one layer, the swing roller assembly reaches the limit deviation position to drive the protruding shaft to rotate, the power assembly amplifies the rotation angle and conducts one-way transmission, and the reversing clutch assembly changes the rotation direction of the lead screw to achieve reversing. A pure mechanical structure is adopted, a sensor and an electric control system are not needed, reliability is high, and cost is low; the swing roller assembly reduces abrasion of the steel wire rope and limits the support to guarantee accurate movement; rope arrangement synchronization is achieved through the transmission ratio design, the reversing assembly has the precise reversing function and the torque protection function, the rope disorder and rope sinking phenomena can be effectively avoided, and the service life of the steel wire rope is prolonged.

Eccentric screw pump with a rotor of a drive shaft circulating essentially about a fixed axis in relation to the stator in a bearing block, a power train and a screw conveyor, which revolves in a rotating-oscillating manner in a screw flight of the stator, wherein the power train provides the screw conveyor with its drive torque and the power train adjusts the differences of the motion sequences of the screw conveyor and of the drive shaft, wherein the power train consists essentially of a one-piece rotational body, which has multiple weakening recesses, which interrupt its outer circumferential jacket surface more than only insignificantly and which provide it with that reversible elasticity, which it requires in order to rotate about an axis of rotation, which curves in a periodically recurring manner at least in sections.

The utility model relates to the technical field of agricultural machinery transmission system detection, and discloses an agricultural machinery transmission system intelligent running-in table which comprises an installation platform, a main power assembly is arranged on the rear side of the upper end of the installation platform, and a running-in tool is arranged in front of the output end of the main power assembly. A left loading assembly and a right loading assembly are arranged on the left side and the right side of the running-in tool respectively, a transmission axle to be tested is arranged on the running-in tool to be supported, the main power assembly is in transmission connection with the power input end of the transmission axle, and the two output ends of the transmission axle are in transmission connection with the left loading assembly and the right loading assembly respectively. According to the utility model, through the automatic design of the main power assembly, the left loading assembly and the right loading assembly, the full-process automatic operation from axle installation, power input to loading test is realized, and the main power assembly is driven by the first driving motor, the first gear and the first rack plate to automatically complete the butt joint with the input end of the axle. And the complexity and the time cost of manual operation are greatly reduced.

The invention discloses an energy-saving servo hydraulic control system, which relates to the technical field of hydraulic control, and comprises a controller used for receiving an external control instruction and outputting an adjusting instruction according to a feedback signal; the servo driving unit receives the adjusting instruction, and a servo driver adjusts the rotating speed and the torque of a servo motor; according to the hydraulic power module, a servo motor drives a variable hydraulic pump to output oil; the hydraulic executing mechanism is used for executing a power output action; the sensing feedback module is used for collecting the position, oil way pressure and execution speed data of the hydraulic execution mechanism; the energy recovery module is used for recovering potential energy and kinetic energy under the braking or descending working condition and converting the potential energy and kinetic energy into hydraulic energy to be stored and reused; and the control valve group is used for accurately controlling the on-off, the flow direction and the flow distribution of the oil liquid. Through flow-pressure on-demand matching and graded energy recovery, the problems that a traditional hydraulic system is large in throttling loss, low in control precision and poor in load adaptability are solved.

The invention provides a coal mine crawler-type full-hydraulic underground drill rig, and belongs to the technical field of drilling mechanical equipment, the coal mine crawler-type full-hydraulic underground drill rig comprises a crawler chassis, the upper end of the crawler chassis is provided with a driving mechanism, an angle adjusting mechanism and a height adjusting mechanism, the height adjusting mechanism is provided with a mounting table, and the upper end of the mounting table is provided with a drilling mechanism; the driving mechanism comprises a lifting plate, a rotating shaft is rotatably mounted in the lower end of the lifting plate, and a rotating gear is arranged on the circumferential surface of the rotating shaft; by means of the arranged driving mechanism, a single servo motor serves as core power, power is distributed to an angle executing mechanism, a height executing mechanism and a drilling executing mechanism according to needs through a liftable rotating gear and a precise toothed plate transmission system, a redundant structure formed by stacking a plurality of drives is abandoned, the whole drilling machine driving system is highly integrated in layout, and the drilling efficiency is improved. The size is greatly reduced, the device perfectly adapts to a narrow tunnel space, and meanwhile the manufacturing cost is reduced.

A sailing-speed auxiliary decision making method for an LNG dual-fuel trailing suction hopper dredger. The method comprises: step S1, collecting actual dredger operational data; step S2, collecting operating condition data, and establishing a trailing suction hopper dredger operating-condition identification database; step S3, establishing an LNG fuel main-engine energy consumption and sailing speed database; and step S4, by means of sailing speed optimization and corrective learning, providing a mobilization speed auxiliary decision-making suggestion. The present invention aims to provide a sailing-speed auxiliary decision making method for an LNG dual-fuel trailing suction hopper dredger to overcome existing defects, thereby providing scientific decision-making support for the mobilization and dredging speeds of dredgers, and improving the energy efficiency and environmental protection performance of dredgers.

An assembly for an aircraft propulsion system includes an open propulsor rotor and a powertrain configured to receive power from a turbine and drive both the propulsor rotor and a compressor section at the same time in a first mode of operation. In a second mode of operation, a brake is applied that stops rotation of the propulsor rotor and the turbine power received by the powertrain drives only the compressor section. In the second mode, the propulsor rotor is stationary or otherwise undriven which effectively prevents rotation of the propulsor rotor. This reduces or eliminates safety risks to ground crews resulting from an open propulsor rotor actively rotating as the aircraft is on the ground.

A propulsion system is provided for an aircraft. This propulsion system includes a propulsor rotor, a drivetrain, a first power unit and a second power unit. The drivetrain is coupled to the propulsor rotor. The first power unit includes a first overrunning clutch and a first electric motor. The first overrunning clutch is configured to selectively couple the first electric motor to the drivetrain. The first electric motor is configured to drive rotation of the propulsor rotor through the first overrunning clutch and the drivetrain. The second power unit includes a second overrunning clutch and a second electric motor. The second overrunning clutch is configured to selectively couple the second electric motor to the drivetrain. The second electric motor is configured to drive the rotation of the propulsor rotor through the second overrunning clutch and the drivetrain.

The invention relates to the technical field of mechanical dynamics analysis and mechanism simulation, and discloses a guide rail impact and dynamic analysis method for a three-degree-of-freedom flat-bottom push rod cam mechanism, which comprises the following steps of: establishing a global coordinate system and a local coordinate system, and defining a push rod as a rigid body with three degrees of freedom of transverse, longitudinal and rotation; the effective input displacement of the cam is corrected according to the rotation angle, and the normal contact force, the friction force and the total cam contact torque are calculated; meanwhile, collision between four corners of the push rod and the guide rail is monitored, and guide rail impact force and guide rail impact total torque are calculated. And constructing a coupling dynamics differential equation set by integrating the force and the torque, and solving a motion state by using numerical integration. And further identifying the dynamic behavior of the system by using a Poincare section and a quintuple impact mode code. Simulation of inclination, overturning and multi-point impact of the push rod is achieved, the period, bifurcation and chaotic motion states of the system can be effectively recognized, and theoretical support is provided for mechanism optimization design.

A locomotive has DC or AC traction motors, powered by a hydrogen fuel cell, and optionally other sources such as regenerative braking. The traction motors of the locomotive may be connected to a set of independent DC choppers or AC inverters, linked via a common DC bus, configured to regulate power from the one or more power sources. A manager module, among other functions, may receive inputs and signals to coordinate delivery of electricity from the sources to the motor. A method for retrofitting a legacy locomotive may include removing a generator and a control apparatus configured for diesel fuel, and installing a kit of apparatus configured to be powered by a hydrogen fuel cell. A railway system for use by locomotives powered by hydrogen has one or more hydrogen-generation stations deployed near a track of the railway system.

The invention discloses a hierarchical step-by-step multi-target genetic optimization method for a multi-port composite magnetic flux modulation motor. The method comprises the following steps: determining a basic topological structure of the motor and completing a preliminary topological design; constructing a parameterized model of the multi-port composite magnetic flux modulation motor, and screening all variables possibly influencing the performance of the motor; defining an optimization target and related constraint conditions of the multi-port composite magnetic flux modulation motor, and selecting performance target parameters sensitive to a power transmission system of the hybrid electric vehicle; on the basis of analysis of multiple operation conditions of the motor, in order to ensure that optimization can be realized under all the operation conditions, a step-by-step optimization method is adopted for the multi-port composite magnetic flux modulation motor, and an optimization result of the previous step is used as an initial scheme of the next step; and drawing a Pareto curve optimized in each step, and screening out an optimal topological structure from the curve as an optimization result. The invention provides a simpler and more convenient and high-precision optimization strategy for the multi-port composite motor.

The utility model relates to the technical field of plastic product processing, in particular to a multi-station grinding and polishing all-in-one machine which comprises a grinding and polishing machine box for plastic product processing, one side of the grinding and polishing machine box is in an opening state, a box door is arranged on the opening side, and a plurality of sets of speed-up gear boxes which are evenly arranged at equal intervals are embedded in the top face of the grinding and polishing machine box. According to the utility model, the plurality of groups of speed-up gearboxes which are uniformly arranged at equal intervals are embedded in the top surface of the grinding and polishing machine box, and are matched with the servo motor mounted at one end of the bottom and the rotating shafts which are in the case and have the same number as the speed-up gearboxes and correspond to the speed-up gearboxes in position, so that effective transmission and speed increase of power are realized; two groups of transmission chain wheels mounted on each group of rotating shafts are in transmission connection with two adjacent groups of rotating shafts through transmission chains, so that synchronous operation among a plurality of stations is ensured; and a replaceable grinding and polishing wheel is mounted at the top of the grinding and polishing shaft connected with the output end of the step-up gear box, so that the grinding and polishing wheel is simple and rapid to replace.

The invention relates to an electric engine, a control method thereof, an electric propulsion system and an aircraft in the technical field of aircrafts. The electric engine comprises a first motor, a first control channel and a second control channel; the first motor comprises two windings, namely a first power winding and a second power winding; when the electric engine is in an initial working state, any control channel serves as a master control channel, the other control channel serves as a slave control channel, and the master control channel is used for executing torque distribution, coordinating the slave control channel and driving the two power windings to execute a power control instruction; any control channel is used for being switched to the main control channel to maintain power output when it is monitored that the other control channel loses the capacity of driving the first motor. According to the electric engine, the double-winding motor and the corresponding double control channels are arranged, when one control channel of the electric engine breaks down, the windings of the double-winding motor can still be driven to maintain power output, and the problem that it is difficult for the engine to guarantee that power is not interrupted is solved.

An electric boat running on land is similar to a boat in water in appearance, is an electric entertainment apparatus, is suitable for being used in occasions such as amusement parks and parks, and is characterized in that the electric boat running on land is realized by utilizing two universal wheels and two driving wheels at the bottom of the boat, and the electric boat is controlled to run in two ways, namely, paddle rowing and supporting rod supporting; according to paddle rowing, paddles on the boat are used for simulating the action of rowing in water to control the boat, the paddles do not make contact with the road surface, only the boat is controlled to go straight, stop, turn left and turn right, power is not provided for driving of the boat, and a gear speed increasing type power generation device is arranged in a paddle assembly. The supporting rod boat supporting means that a matched supporting rod is used for simulating the action of supporting the boat in water to control the boat, the probe end of the supporting rod makes contact with the road surface, the supporting rod boat supporting only controls the boat to go straight, stop, turn left and turn right instead of providing power for driving of the boat, and a resistance type pressure sensor is arranged in a supporting rod assembly.

A ride-on power trowel has first and second engines mounted to a rigid frame. Each of first and second drive loops have a hydraulic pump powered by such an engine and a drive motor powered by the hydraulic pump. Rotor assemblies are coupled to the drive motors and configured to contact a concrete surface beneath the frame. A feedback controller sets rotor speed in each assembly to a power limited speed based on loads sensed in the drive loops. The power limited speed is an estimated maximum rotor speed achievable for the highest sensed load, which may be affected by operating data received from the engine associated with the highest sensed load.

The invention discloses a liquid hydrogen high-temperature superconducting motor and magnetofluid dual-power propulsion system, and aims to solve the problems that an existing ship propulsion system is single in power mode and insufficient in power density. The system comprises a liquid hydrogen storage and supply unit, a cooling unit, an energy conversion unit, a superconducting motor propulsion unit and a magnetofluid propulsion unit, the liquid hydrogen storage and supply unit conveys liquid hydrogen to the superconducting part through the cooling loop, the liquid hydrogen is converted into hydrogen through the heat exchanger after being cooled, the energy conversion unit converts the hydrogen into electric energy and outputs the electric energy in a matched mode, and the superconducting motor propulsion unit and the magnetic fluid propulsion unit generate mechanical energy or electromagnetic force through the electric energy to drive a ship. And the superconducting component is cooled by the cooling loop. The liquid hydrogen in the system has the dual functions of a cooling medium and fuel, a coolant and fuel do not need to be additionally configured, the requirements for silence, high thrust and rapid maneuvering are met, the power density is high, the environmental protection property is good, and the system is suitable for high-performance propelling scenes such as ships, especially submarines.

The invention belongs to the technical field of ship electric propulsion, and particularly relates to a ship electric propulsion dual-mode control system with a multi-redundancy architecture, and the system comprises the steps: firstly, accurately obtaining the actual rotating speed and electromagnetic torque of a motor through a sensor group with redundancy configuration and two-out-of-three voting logic; secondly, calculating load disturbance intensity by utilizing time domain difference analysis, and calculating the deviation between the actual torque and the theoretical hydrodynamic torque in combination with a propeller characteristic coefficient, so as to generate a load anomaly index; generating a dynamic flexible factor with a damping characteristic based on the index by using a Sigmoid function and low-pass filtering logic; and finally, carrying out weighted fusion on output instructions of the rotating speed mode and the torque mode according to the factor. According to the method, normal acceleration and sea wave disturbance can be accurately distinguished, smooth seamless switching between a static water speed stabilization mode and a severe sea condition machine protection mode is achieved, and control oscillation and mechanical damage are effectively avoided.

The utility model provides a power system and engineering machinery. The power system and the engineering machinery comprise a driving motor, a gearbox, a loading system and a traveling system, the loading system comprises a first system, a second system and a third system; wherein the driving motor is connected with the gearbox; a power take-off port of the gearbox is connected with a first system, a second system and a third system in the loading system so as to transmit power transmitted by the driving motor to the first system, the second system and the third system; the gearbox is connected with the traveling system in a direct drive mode so as to transmit power transmitted by the driving motor to the traveling system. According to the power system and the engineering machine, switching between loading operation and running can be directly conducted through the gearbox, a transmission link is shortened, and the effect of improving the transmission efficiency of the engineering machine in the power switching process is achieved.

The application discloses a disc type torque permanent magnet synchronous motor and relates to the technical field of motors. The disc type torque permanent magnet synchronous motor comprises a shell, a driving unit, a shaking prevention unit and an air gap balancing unit. The shell is used for providing a mounting and fixing base for the driving unit, the shaking prevention unit and the air gap balancing unit. The driving unit is used for generating power. The shaking prevention unit is used for avoiding left and right shaking of a stator. The air gap balancing unit is used for ensuring air gap balance. In the working process of the disc type torque permanent magnet synchronous motor controlled by the driving unit, the stator shakes due to problems such as load vibration impact and environmental temperature change. The shaking prevention unit is used for avoiding left and right shaking of the stator and motor heat dissipation. The stator shaking causes uneven air gap between the stator and a rotor. The air gap balancing unit is used for ensuring air gap balance and ensuring the operation stability of the motor.

The application provides a variable impulse method for manta ray-like vehicle attitude control through bypass internal flow distribution, a propeller serving as a propelling system and a flow distributor with adjustable position arranged at an outlet end of a power duct module are fused and designed, axial water flow generated by the single propeller is directly used as propelling power and attitude control direct power, the flow of each jetting outlet can be adjusted without changing the propeller rotating speed through position adjustment of the flow distributor arranged at the outlet end of the power duct module, the impulse of water flow of upper and lower jetting outlets is quickly changed, upper and lower thrust difference is formed on the bionic body, the pitching moment is changed without changing the propelling process, the attitude adjustment of the bionic vehicle is accurately realized, and the system efficiency, dynamic response and task adaptability are coordinately improved on the basis of keeping the original propelling efficiency advantage.