542results about How to "Reduce torque" patented technology

The invention relates to a directional deflection diagonal plane deflection joint with a single driving source, which belongs to the technical field of deflection mechanisms capable of moving in multiple dimensions and comprises a first clutch, a second clutch, a transmission shaft, a clutch supporting structure, a planetary gear train, a planetary gear train transmission structure, a speed reducer, an upper diagonal plane mechanism, a lower diagonal plane mechanism, a universal joint, a driving motor and a bearing. Through the cooperation of different clutches, the upper part and the lower part of the joint can rotate in different directions and at different speeds or move in the same way, through the movement of different parts, the deflection action of the system in space is realized, the multi-dimensional movement space of the mechanism is realized, the number of driving sources is reduced, and the total weight of the system is further reduced.

The knee joint assembly comprises a first thigh web, a knee joint motor is arranged at the upper end of the side wall of the first thigh web in the X direction, and the output end of the knee joint motor is connected with a first flange plate; a knee joint connecting rod is hinged to the eccentric part of one end of the first flange away from the knee joint motor; the lower end of the side wall of the first thigh web is rotationally connected with a shank web in the X direction. The end, away from the first flange plate, of the knee joint connecting rod is hinged to the upper end of the shank web. The hinge point of the knee joint connecting rod and the first flange plate, the rotating shaft point of the first flange plate, the hinge point of the knee joint connecting rod and the shank web and the rotating shaft point of the shank web form a contra-parallelogram structure. The motion angle range of the knee joint connecting rod can be narrowed on the basis that the requirement for large-angle-range motion of the knee joint of the humanoid robot is met.

The invention relates to the technical field of quick valves, in particular to an air quick valve which comprises a valve body, a valve seat and a valve element, a valve cavity is formed in the valve body, the valve body comprises a shell and an installation island located in the valve cavity, the installation island is connected with the shell into a whole through an upper connecting part and a lower connecting part, and the air quick valve further comprises a first cylinder body installed on the shell; a stepped hole is formed in the mounting island, or a containing cavity is formed in the mounting island, gas is input into the first cavity and the fourth cavity through an external gas source, and the gas directly enters the first cavity and acts on the first piston; when the valve is opened, the gas source does not supply gas, the valve element is driven to move through the acting force of a medium on the valve element, the valve element is driven to move through the acting force of the medium on the valve element, and the valve element is driven to move through the acting force of the medium on the valve element. And the first piston and the second piston are enabled to move in the stepped hole.

The invention provides a double-head movable column gantry machine tool based on an offset ram base, relates to the field of manufacturing of numerical control equipment, and mainly solves the problems that the distance between two main shafts in an existing double-head gantry machine tool is large, small parts cannot be machined, and rigidity and stability are insufficient due to the fact that a sliding base is simply shrunk. The device specifically comprises a workbench, a lathe bed, a sliding rail, a slide carriage, gantry stand columns and a cross beam. Two processing units are mounted on the cross beam; each machining unit comprises an offset sliding seat, a matched ram and a main shaft in the ram, and the width of the outer side of the sliding seat is larger than that of the inner side of the sliding seat; the offset ram structure is adopted, the width of the contact sides of the two sliding seats is reduced, the mutual interference area of the two rams is reduced, the distance between the two spindles of the machine tool is reduced, the combined sliding rails are adopted between the sliding seats and the cross beam or between the rams and the sliding seats, and the piston rods in the vertical direction are arranged on the two sides of the tops of the left ram and the right ram. And the matching rigidity and strength of the ram and the sliding seat are improved.

The invention discloses a convenient-to-adjust welding workstation for hardware machining, and relates to the technical field of adjusting welding, the convenient-to-adjust welding workstation for hardware machining comprises an equipment frame, a welding mechanism is fixedly mounted on the outer wall of the equipment frame, a first motor is fixedly mounted on the surface of the equipment frame, and the convenient-to-adjust welding workstation for hardware machining further comprises a clamping device; wherein the clamping device comprises a rotating rod, a fixing plate, a rotating pipe, an electric push rod, a clamping plate, a large gear, a second motor, a connecting rod, a circular plate and a small gear, and the rotating rod is fixedly installed at the output end of the first motor. The hardware is fixed in the welding process, the situation that the hardware is damaged due to the fact that the hardware shakes in the welding process and falls off can be prevented, meanwhile, the non-welded side is rotated, the hardware can be adjusted to the optimal position more easily, and unnecessary torsion and stretching are reduced.

The utility model discloses a lens assembly, a lens and an image pickup device. The lens assembly comprises a first lens cone, a second lens cone, a third lens cone, a fourth lens cone and a connecting piece. The second lens cone is sleeved in the first lens cone and can move along the optical axis direction; the third lens cone is fixedly connected to one end of the first lens cone; the fourth lens cone is sleeved on the periphery of the third lens cone and the first lens cone. A second rolling module used for reducing the friction force when the fourth lens cone rotates relative to the third lens cone is arranged between the third lens cone and the fourth lens cone. The connecting piece is connected between the second lens cone and the fourth lens cone; when the fourth lens barrel rotates, the second lens barrel can be driven to move along the optical axis through the connecting piece. According to the technical scheme, smooth movement of the fourth lens cone is guaranteed through simple structural design, friction force between the fourth lens cone and the third lens cone can be reduced, and torsion is reduced.

The invention relates to a water surface and underwater equipment laying and recycling device suitable for complex sea conditions. The water surface and underwater equipment laying and recycling device comprises a frame A and a swing stopping mechanism. The oscillation stopping mechanism comprises an oscillation stopping device and an anti-collision net mechanism; the oscillation stopping device comprises a swinging connecting rod, an oscillation stopping oil cylinder and a connecting circular ring; the upper end of the swinging connecting rod is hinged to the A frame body; the upper end of the anti-swing oil cylinder is connected with the swing connecting rod and the lower end is connected with the connecting ring; a group of steel cable launchers are arranged around the connecting ring, the steel cable launchers can release the steel cable through ejection, and the steel cable can be continuously released or recycled through a steel cable winch in the steel cable launchers; the lower end of a steel cable in the steel cable emitter is connected with a steel cable clamp, and the steel cable clamp is provided with an opening and closing mechanism and can grab and release a lifting lug on target equipment; the anti-collision net mechanism comprises two sets of supporting arms and an anti-collision net clamped by the far ends of the two sets of supporting arms, and the near ends of the two sets of supporting arms are hinged and fixed to the A frame base. The precision and success rate of equipment recovery can be improved.

The invention provides a lubricant with a modified silicon carbide particle structure coated with a resin material for a drilling fluid as well as a preparation method and application of the lubricant, and belongs to the technical field of lubricants for oil field drilling fluids. The preparation method of the lubricant comprises the following steps: adding pretreated nano SiC particles, hydroxyethyl acrylate, dodecyl acrylate and a silane coupling agent into base oil, then adding a chain transfer agent, stirring, and then adding an initiator for reaction; after the reaction is finished, filtering, washing and drying to obtain modified nano SiC particles; and adding the modified nano SiC particles into the fluorocarbon resin solution, heating for reaction, drying and grinding to obtain the fluorocarbon resin. The invention develops a novel efficient lubricant material for the drilling fluid, and the lubricant material not only can greatly reduce the flow resistance of the drilling fluid and the friction resistance coefficient of a filter cake and slow down the wear of a drilling tool, but also has excellent wear resistance and corrosion resistance, and can effectively improve the drilling efficiency and prolong the service life of a drill bit.

The invention discloses an intelligent clamping shackle device for an underground drill rig and a control method. The intelligent clamping shackle device comprises a clamping device, a shackle device body, a connecting base and a forcing device. The clamp holder and the shackle device are fixed on the connecting base; the forcing device is a double-rod double-acting forcing oil cylinder with a central through hole and is concentrically mounted in front of the shackle device; by detecting the spatial position of the slip, the drill rod is adjusted, and righting of the upper buckle of the drill rod is completed; and through the forcing device, the torque required by shackle is effectively reduced. According to the invention, the automatic control of the clamping and shackling processes of the clamping device can be realized, the shackling brake torque can be reduced, the stress condition of the clamping shackling device can be improved, the lightweight of the clamping shackling device is facilitated, and the early warning of the service life of the slip can be carried out in real time.

The invention discloses a six-shaft simple electric control speed change clutch sheet type electric driving system which comprises a power input mechanism, a speed change assembly and a two-shaft power output mechanism, and a power input shaft, a speed reduction shaft assembly, a reverse gear shaft mechanism and the two-shaft power output mechanism of the speed change assembly are arranged on the periphery of a main shaft in the circumferential direction. And the structure is simple and reliable, the expansibility is excellent, and various functional modules such as human-controlled reversing, inertial reversing and active upshift and downshift according to real-time power can be flexibly expanded according to actual requirements. The motor can always and efficiently keep working in the current high-efficiency area according to the change of the driving intention, a multi-parameter control strategy with the consciousness and intention of people as priority is achieved, and harmony and unification of people, vehicles, roads and running resistance / running loads are achieved. The important scientific and engineering technology common key problem of traction / driving force-running resistance / load efficient and accurate balance control is solved.

The invention discloses a vehicle-mounted protective cover control method and related equipment, and relates to the technical field of vehicle equipment.The method comprises the steps that in response to a protective cover opening instruction, a first cover door is opened; when the first cover door is opened to a first preset angle, the second cover door is opened; when the first cover door and the second cover door are both opened to be larger than or equal to a second preset angle, the protective cover body is opened, and the second preset angle is larger than the first preset angle; in response to the protective cover closing instruction, performing closing operation on the protective cover body; when the cover body is closed to a preset closing position, the second cover door is closed; and when the second cover door is closed to a third preset angle, the first cover door is closed. The opening or closing sequence and angle of the cover door are accurately controlled, a new synchronous control strategy is provided, and the beneficial effects of avoiding conflicts, protecting the sealing covered edge, improving the operation safety and the like are achieved while stable movement of the protective cover is guaranteed.

The invention relates to the technical field of ship transmission, in particular to a propeller speed reducer, a ship and a ship control method. The propeller speed reduction device comprises a gear box, a speed reduction unit, a power input unit and a tail transmission execution unit, the speed reduction unit comprises a first-stage speed reduction assembly and a second-stage speed reduction assembly, the second-stage speed reduction assembly comprises a first cylindrical gear and a first face gear, and the first cylindrical gear and the first-stage speed reduction assembly are in coaxial transmission; the axis of the first cylindrical gear and the axis of the first face gear intersect to form an included angle, the first cylindrical gear is connected with the first face gear in a meshed mode, the tooth end face of the first face gear is arranged in a taper mode, the power input unit is connected with the first-stage speed reduction assembly, and the tail transmission execution unit is connected with the first face gear. According to the invention, the condition of any small dip angle of a ship can be met, and a transmission mode of the cylindrical gear and the face gear is adopted, so that the higher speed ratio of the whole machine is realized, the power density is effectively improved, pairing processing is not needed, and the processing and maintenance cost is greatly reduced.

The utility model discloses a sealing enhancement type knife gate valve. According to the technical scheme, the gate valve is characterized by comprising two half valve bodies connected oppositely, a U-shaped sealing strip limited between the two half valve bodies, a gate plate capable of making contact with the sealing strip, a valve rod driving the gate plate to move, a handle used for driving the valve rod to move and filler allowing the gate plate to penetrate through and located at ports of the half valve bodies. The two half valve bodies are provided with sealing grooves for jointly containing the sealing strip, the face, attached to the sealing strip, of the gate plate is provided with a sealing part protruding towards the sealing strip, and the sealing strip is provided with an attaching groove partially matched with the sealing part. The sealing part is partially inserted into the attaching groove and tightly attached to the inner wall of the attaching groove, so that the sealing part cannot move in the axis direction of the half valve body relative to the attaching groove, and the problems that in the prior art, opening and closing are difficult, the needed torque is large, and leakage is generated due to the fact that a gate plate is prone to deviation are solved.

The utility model discloses a low-torque ball valve, and particularly relates to the technical field of ball valves, which comprises a valve body, a spherical valve core is movably arranged on the inner side of the valve body, and threaded ends are respectively arranged at two ends of the valve body; a valve rod protection device is arranged at the upper end of the inner side of the valve body and used for preventing the valve rod from being abraded, increasing sealing performance and avoiding overflow. The valve rod protection device comprises a valve rod, the valve rod is movably arranged on the inner side of the upper end of the valve body, the lower end of the valve rod is fixedly connected with the upper end of the ball valve, an H-shaped groove is formed in the outer surface of the lower end of the valve rod, and a rotating disc is fixedly arranged at the upper end of the valve rod; a ball valve anti-abrasion device for protecting the ball valve is arranged on the inner side of the valve body and used for preventing abrasion caused by friction between the outer surface of the spherical valve element and a port of the threaded end. By arranging the valve rod protection device, the valve rod can be prevented from being abraded, sealing is added, overflow is avoided, and by arranging the ball valve anti-abrasion device, abrasion caused by friction between the outer surface of the spherical valve element and a port of the threaded end head can be prevented.

The ultra-miniature harmonic speed reducer with the double-flexible-gear structure comprises a steel wheel, an input shaft, a supporting bearing structure, a multi-stage flexible gear structure and an output shaft, an upper cover and a lower cover are fixedly installed on the upper side and the lower side of the steel wheel correspondingly, and the input shaft and the output shaft are rotationally connected with the steel wheel through the supporting bearing structure; the input shaft and the output shaft are in driving connection through a multi-stage flexible gear structure, and the multi-stage flexible gear structure is formed by connecting a plurality of flexible gear structures in series. The harmonic speed reducer is provided with the double flexible gear structures which are connected in series, the harmonic speed reducer is large in transmission ratio, high in bearing capacity and high in transmission precision, and compared with a traditional harmonic speed reducer, the harmonic speed reducer can be of an ultra-micro structure, has the high transmission ratio and large torque, can be suitable for the small-space use environment, is higher in applicability and has the good market prospect in the field of miniature equipment.

The utility model discloses a bending-resistant two-layer twisted marine symmetrical fireproof communication cable, which comprises an outer-layer cable core body formed by uniformly distributing eight twisted-pair cable cores at intervals in the circumferential direction through an EPDM (Ethylene-Propylene-Diene Monomer) isolation core frame, and the center part of the EPDM isolation core frame is provided with a center hole. Four twisted-pair wire cores and PP resin filling core strips are twisted and jointly wrap an inner longitudinal wrapping layer of a modified silicone rubber ceramic mica fire-resistant composite belt to form an inner-layer wire core body, and the inner-layer wire core body is sleeved with the center hole. And a nylon tape wrapping layer, a copper wire braided shielding layer, a low-smoke halogen-free polyolefin inner sheath layer, a modified silicone rubber ceramic mica fire-resistant composite tape outer longitudinal wrapping layer, a high-temperature glass fiber wire wrapping layer and a low-smoke halogen-free polyolefin outer sheath layer are sequentially wrapped outside the outer-layer wire core body. According to the cable, the 12 pairs of twisted wire cores are arranged in two layers through the isolation core frame, the cable core structure is round and neat, the bending resistance is better, the fire resistance and flame retardance are better, the safety and reliability of the cable are enhanced, and the durability is better.

The utility model relates to the technical field of shared power bank locking equipment, and discloses a shared power bank locking device. The shared power bank locking device comprises a shell, a locking assembly and an unlocking assembly, the locking assembly comprises a first locking piece, a second locking piece and a reset spring, and the reset spring is connected with the first locking piece and the second locking piece and used for fixing the first locking piece and the second locking piece to a locking position; the unlocking assembly comprises a driving part and a rotating part, the rotating ring can rotate in the first direction and move in the first direction, the rotating part comprises a rotating ring, a first pushing part and a second pushing part, and in the process that the rotating ring rotates in different directions, the first pushing part is used for pushing the first locking part to the unlocking position in the second direction; the second pushing part is used for pushing the second locking piece to the unlocking position in the second direction. According to the shared power bank locking device provided by the utility model, the technical problems of low space efficiency of internal elements and relatively large size of the locking device are solved. The invention further provides a shared power bank storage cabinet.

The invention discloses a piezoelectric motor and a camera module, and belongs to the technical field of camera modules. The piezoelectric motor comprises a fixed frame, a movable carrier, a driving assembly and a supporting assembly, the movable carrier is movably arranged on the fixed frame, the driving assembly is connected with the fixed frame and abuts against the movable carrier at the same time, and the supporting assembly is arranged between the fixed frame and the movable carrier. The supporting assembly is matched with the driving assembly to enable the movable carrier to be supported on the fixed frame, and the driving assembly and the supporting assembly are arranged on the same side of the piezoelectric motor. The camera module comprises the piezoelectric motor, a lens assembly arranged in the piezoelectric motor, and a photosensitive assembly arranged opposite to the lens assembly. The method has the advantages that the risk that the movable carrier inclines relative to the fixed frame is reduced, the supporting assembly is prevented from being stuck, and the photographing effect is improved.

The present invention discloses a six-way water valve for a vehicle thermal management system. It includes a valve body, a cylindrical valve core, a valve core shaft, a sealing gasket, a valve cover and an actuator. The valve body is connected to two water inlet pipes and four water outlet pipes. The two water inlet pipes are coaxially arranged, and the four water outlet pipes are symmetrically distributed on both sides of the axis of the water inlet pipe. The cylindrical valve core is provided with a water outlet and two arc-shaped flow channels. The actuator drives the valve core shaft to drive the cylindrical valve core to rotate and control the connection and disconnection between the water outlet and the arc-shaped flow channel and the water inlet pipe and the water outlet pipe. The present invention has a reasonable design of the valve body, cylindrical valve core, sealing gasket structure and the cooperation between them, which reduces the valve body action torque while ensuring the sealing performance, thereby reducing the wear of the sealing friction pair.

The utility model provides a low-torque pan-tilt camera device which comprises a support, a spherical groove corresponding to a spherical assembly is arranged on the support, the spherical assembly is located on the inner side of the spherical groove, a plurality of tooth grooves are formed in the outer side wall of the spherical assembly, and a plurality of clamping grooves are formed between the tooth grooves and the outer side wall of the spherical assembly. An arc-shaped rack for driving the spherical assembly to rotate is formed; a gear is fixedly arranged at the power output end of the motor, and the gear is meshed with the arc-shaped rack; the camera lens is located on the inner side of the spherical assembly. The utility model has the beneficial effects that the transmission ratio is small, that is, the output rotating speed is high, the torque is small, the shaking of the pan-tilt camera lens in the rotating process is avoided, and the transmission mechanism is suitable for high-speed and small-torque transmission application scenes.

The invention discloses a control pipeline needle valve low in torque and high in loading capacity, and relates to the field of needle valves, the control pipeline needle valve comprises a needle valve body, a flange plate is mounted on the outer wall of the needle valve body, a U-shaped sealing steel ring is mounted in an inner cavity of the flange plate, and lubricating gaskets are mounted on the outer wall of an upper valve rod and the outer wall of a lower valve rod; a mounting base is mounted in the center of the top of the needle valve body, clamping blocks are symmetrically and movably connected to the two sides of the bottom of the mounting base, a base is mounted at the bottom of the needle valve body, and supporting assemblies are symmetrically and rotationally connected to the periphery of the bottom of the base. According to the control pipeline needle valve low in torque and high in pressure bearing capacity, the needle valve body and the conical surface of the U-shaped sealing steel ring are different in angle, so that the principle that linear sealing is achieved is achieved, the original traditional pressing sealing principle is abandoned, the design of the U-shaped sealing steel ring is adopted, and the sealing effect is good. In this way, the sealing effect under high pressure can be guaranteed, and meanwhile the torque can be effectively reduced.

A neutron source irradiation device capable of switching gas paths disclosed by the present invention comprises a gas path switching rotor assembly, a transmission pipeline and a plurality of storage pipelines, the transmission pipeline is provided with an electromagnetic chuck, and a neutron source is stored in each storage pipeline. And the transmission pipeline can be communicated with the different storage pipelines through rotation of the gas path switching rotor assembly, so that neutron sources in the different storage pipelines can reach the electromagnetic chuck through the transmission pipeline. Neutron sources at different positions can be transmitted to the same position for irradiation, an independent transmission irradiation structure is provided, the irradiation position structure is simple, the scattering influence can be reduced, meanwhile, different neutron sources have good repeatability and consistency at the irradiation positions, position adjustment of a measured instrument is not needed, the verification efficiency is improved, and the detection cost is reduced. And the stability and consistency error of the generated neutron radiation field are ensured.

The present invention discloses a horizontal axis eccentric hemispherical valve, which adopts a horizontal axis structure to install the valve core, and the axis of the valve stem is perpendicular to the flow direction of the medium in the valve body and is arranged horizontally, so as not to occupy the lower end of the flow channel, so that the lower end of the flow channel can be designed to be flatter than that of a vertical eccentric hemispherical valve, thereby reducing the flow resistance. The valve core is provided with a cylindrical boss concentric with the valve core, and a sealing ring is provided in the gap on the boss, the sealing ring has a spherical crown-shaped sealing surface, and an air bag ring is provided in the gap formed by the boss and the sealing ring. The sealing ring and the valve core are fixed by a fixing assembly, so that the valve core sealing spherical crown and the valve seat center can be adjusted to be concentric during assembly, so as to overcome the processing error and ensure effective sealing.

The utility model discloses a flexible driving photovoltaic tracking system, which relates to the field of photovoltaic technology, and comprises a plurality of support assemblies, each support assembly comprises a support column and a main shaft unit, one end of the support column is used for being connected with the ground, and the other end of the support column is rotatably connected with the main shaft unit; the driving unit is fixedly connected to the supporting column of the middle support assembly, and the output end of the driving unit is fixedly connected with the middle of the main shaft unit of the middle support assembly; and the transmission rope is connected in an end-to-end closed manner, is movably connected with the supporting column of the bracket assembly, and is connected with the main shaft unit of the bracket assembly. The utility model has the technical effects of good terrain adaptability and small driving torque.

The invention relates to a high-strength low-warpage 3D printing nylon modified material and a preparation method thereof, the high-strength low-warpage 3D printing nylon modified material comprises the following raw materials by weight: 64-87 parts of nylon resin, 1-2 parts of a crystallization accelerator, 1-2 parts of a maleic anhydride grafted flexibilizer, 1-2 parts of a benzene ring-containing hyperbranched polymer, 5-15 parts of modified silicon carbide whisker, 5-15 parts of modified carbon fiber, and 0.2-0.5 part of a lubrication dispersant TAF. Wherein the modified silicon carbide whisker is obtained by coating the surface of a silicon carbide whisker with a layer of conductive polymer and then performing electrochemical treatment; the modified carbon fiber is obtained by coating a layer of layered dihydroxy compound on the surface of carbon fiber and introducing a functional substance between the dihydroxy compound layers through ion exchange. According to the 3D printing nylon modified material disclosed by the invention, the modified silicon carbide whiskers and the modified carbon fibers are added, so that the tensile strength and the bending strength of the material are improved, and the deformation and warping of the material are reduced.

The invention provides a rope-driven intelligent mechanical arm applied to a high-voltage power transmission tower. The rope-driven intelligent mechanical arm comprises a five-degree-of-freedom body structure module, a fixed bottom plate module and a tail end magnet quick-change module. The five-degree-of-freedom body structure module comprises a second rope, a carbon tube connecting disc, a large arm carbon tube, a transmission gear, a rotating disc, a rope penetrating sleeve, a wrist connecting disc, a fixing disc, a small arm carbon tube and a second joint motor. A second rope penetrates through a rope penetrating sleeve arranged on the rotating disc, an output shaft of a second joint motor is connected with a pinion, then is connected with a transmission gear and is arranged on the rotating disc, and the transmission gear is connected with a carbon tube connecting disc; the large arm carbon tube is connected with the carbon tube connecting disc through a fastening bolt, and the second rope penetrates out of the large arm carbon tube after passing through the rope penetrating sleeve to drive the small arm carbon tube to rotate. The five-degree-of-freedom series mechanical arm is adopted as an overall structure, the large working range is achieved, meanwhile, the carbon fiber tube connecting rods are adopted, the weight is light, replacement is convenient, and therefore the five-degree-of-freedom series mechanical arm has good maintainability and stability.

The invention relates to a method for testing the small torque of a vehicle-mounted motor. The method comprises the following steps: S1, calibrating a torque sensor; s2, small torque treatment; s3, installing the tested motor; s4, carrying out no-load test; s5, connecting a data acquisition system; s6, connecting a battery simulator; s7, testing data; and S8, data processing. According to the invention, the small-torque dynamometer is directly butted with the tested motor, so that the intermediate transmission of the axle box is reduced, the power and torque of the dynamometer are reduced, the inertia is reduced, the shaft loss of torque measurement is reduced, the range of the torque sensor is reduced, and the measurement precision is improved; the testing method can effectively solve factors such as insufficient testing precision of small torque and too large error caused by mechanical loss.

The invention provides a disc type motor rotor structure with low vibration, low loss and low rotational inertia, which comprises a rotor disc, magnetic steel and a carbon fiber ring, a plurality of supporting spokes are uniformly arranged on the rotor disc along the circumferential direction, first limiting parts are arranged on two sides of the supporting spokes, second limiting parts are arranged on two sides of the magnetic steel, and the carbon fiber ring is arranged on the rotor disc. The second limiting part is clamped with the first limiting part, a first gap is formed between the first limiting part and the second limiting part, a second gap is formed between the first end of the magnetic steel and the rotor disc, the first gap and the second gap are filled with elastic glue, and the periphery of the magnetic steel is sleeved with the carbon fiber ring. According to the rotor structure, the gaps are formed in the abutting positions of the rotor disc and the magnetic steel and filled with the elastic glue, vibration of the magnetic steel in the rotating process of the rotor can be relieved, and therefore vibration and noise of the axial motor are effectively reduced. The rotor disc is partially or completely made of light-weight special engineering plastics, eddy current heating can be effectively avoided, loss is reduced, rotational inertia is reduced, and the response speed of the motor is remarkably improved.

The utility model discloses a novel small-caliber fixed ball valve seat, relates to the technical field of ball valve seats, and aims to solve the problems that in order to achieve a good sealing effect of a small-caliber ball valve at present, the number of springs needs to be increased, thrust needs to be increased by enlarging the pressure difference area of the valve seat, sealing is formed, the valve torque is increased, and the service life is prolonged. The problems that in the valve opening and closing process, the specific pressure of a sealing ring is directly increased due to the fact that thrust of a spring and a medium on a valve seat is increased, the friction loss of the sealing ring is increased, the sealing performance of the sealing ring is affected, and finally sealing fails are solved. Valve seats are symmetrically arranged on the two sides of the ball body, triangular ring lock covers are arranged below the ends, close to the ball body, of the valve seats, elastic triangular rings are arranged between the valve seats and the sides, close to the ball body, of the triangular ring lock covers, compression spring grooves are formed in the four corners of the inner side of the valve body, and compression springs are arranged in the compression spring grooves.

The invention discloses a charging control method, a related system, equipment and a storage medium, which are applied to a charging system, and the charging system comprises a first power supply, an inverter circuit, a motor, a motor controller and a second power supply. The charging control method comprises the steps that a motor controller determines a plurality of first rotor angle intervals under a first charging working condition and first phase current distribution information which corresponds to the first rotor angle intervals and enables motor torque to be zero torque; under the first charging working condition, charging current output by the second power supply flows into the first power supply through the first winding, the second winding and the third winding; and in response to the condition that the current motor rotor angle is located in any one of the plurality of first rotor angle intervals, controlling a switching tube in the inverter circuit based on the first phase current distribution information of the rotor angle interval to which the current motor rotor angle belongs. In this way, the motor torque generated during charging can be reduced, and the charging stability is improved.