25208results about "Mechanical energy handling" patented technology

The invention includes a screw actuator. The screw actuator includes a screw having a screw shaft and a screw nut. The screw shaft defines a first longitudinal axis along its length. The screw nut at least partially surrounds the screw shaft. The screw actuator includes a motor having a stator and a rotor. The rotor is mechanically coupled to the screw shaft. The stator at least partially surrounds the rotor. The screw actuator includes a first rigid member having a length dimension oriented along the first longitudinal axis. The screw actuator includes a second rigid member mechanically constrained relative to the first rigid member. The second rigid member is configured to move along a direction of the first longitudinal axis.

To provide a technique for suppressing influences caused by the presence of a space communicating in a radial direction in a protruding portion, which protrudes from a stator core, in a stator coil.SOLUTION: A compressor 100 comprises a compression mechanism part 120 and a motor 200 which are stored in a sealed container 110. A stator 300 of the motor 200 includes a stator coil 340 wound around a plurality of teeth of a stator core 310. The stator coil 340 includes a first protruding portion 340A and a second protruding portion 340B protruding from the stator core 310 to a first side and a second side in an axial direction. At least outside of the first protruding portion 340A, a first enclosure wall 350 is provided which extends without a gap in the axial direction and a circumferential direction.SELECTED DRAWING: Figure 1

The disclosure is directed to an apparatus or a system for generating energy in response to a vehicle wheel rotation. The apparatus or the system may include a roller configured to be positioned in substantial physical contact within a groove of a wheel of the vehicle. The roller may be configured to rotate in response to a rotation of the wheel. A flexible arm may be rotatably couplable to the roller such that rotation of the roller causes the flexible arm to rotate. The flexible arm may exert a downward force on the roller to increase the friction between the roller and the groove of the wheel. A first generator may be operably coupled to the flexible arm and configured to generate an electrical output based on the rotation of the flexible arm shaft and convey the electrical output to an energy storage device or vehicle motor.

The utility model relates to the technical field of curtain machines, and discloses a conductive structure of a curtain machine, the curtain machine comprises a curtain guide rail, the conductive structure comprises a conductive strip and a moving body, and the conductive strip is arranged along the length direction of the curtain guide rail; the moving body is movably arranged in the length direction of the curtain guide rail, a conductive contact piece is arranged on the moving body, and the conductive contact piece is configured to abut against the conductive strip under the action of elastic force. In the conductive structure, the conductive contact member always abuts against the conductive strip under the action of the elastic force, and reliable contact and stable conduction between the conductive contact member and the conductive strip can be ensured no matter the conductive strip is uneven, the gap of the assembly structure is large, and the conductive strip is affected by external vibration.

The invention provides a low-power-consumption self-repairing and energy self-supplying mine dust monitoring sensor network system, which comprises a plurality of sensor nodes and a central monitoring platform, and is characterized in that data of all the sensor nodes are transmitted to the central monitoring platform in real time; the sensor network synchronizes environmental parameters, and performs data analysis, processing and visual display on the central monitoring platform; a plurality of sensors are integrated in each sensor node, and the sensors are used for monitoring different environmental parameters in a mine environment; the types of the sensors comprise a dust concentration sensor and a temperature and humidity sensor, and the environmental parameters comprise dust concentration, temperature and humidity; the problems of long-time operation, insufficient energy supply, node failure, unstable data transmission and the like of a dust monitoring system in a complex mine environment are solved. The system integrates a multi-source environment energy collection module, and the technologies of mechanical vibration, airflow kinetic energy, thermoelectric power generation and the like are adopted, so that self-power supply of sensor nodes is realized, and the requirement of frequently replacing batteries or wiring is avoided.

The utility model provides a cantilever type magnetic drive pump, and belongs to the technical field of pumps. The technical problem that an existing cantilever type magnetic drive pump is not good enough in sealing effect is solved. A cantilever type magnetic drive pump comprises a pump shell and a motor shell, a stator assembly is fixedly installed between the pump shell and the motor shell, a rotor assembly rotating relatively is embedded in the stator assembly, an impeller is fixedly connected to the rotor assembly, the stator assembly comprises a stator shielding sleeve and a stator assembly wrapped by the stator shielding sleeve, and a concave cavity is formed in the middle of the stator shielding sleeve. The bottom of the concave cavity protrudes towards the impeller to form an installation column, a reinforcing piece is arranged in the installation column, the rotor assembly is embedded into the concave cavity and fixedly and rotatably arranged outside the installation column in a sleeving mode, the installation column penetrates through the middle of the rotor assembly, and the impeller is fixedly connected to the rotor assembly. The sealing device is good in sealing effect and stable in rotation.

A gas turbine engine includes a gearbox assembly that includes a gearbox and a gutter for collecting a gearbox lubricant scavenge flow from the gearbox. The gutter is characterized by a lubricant extraction volume ratio between 0.01 and 0.3. The lubricant extraction volume ratio defined by:VGVGB.VGis a gutter volume of the gutter and VGB is a gearbox volume. The gas turbine engine includes a lubrication system that includes a lubricant tank that stores lubricant, one or more primary gearbox lubricant supply lines, one or more secondary gearbox lubricant supply lines, and a lubricant pump for supplying the lubricant to the gearbox assembly through the primary gearbox lubricant supply lines and the secondary gearbox lubricant supply lines. The lubrication system modulates a mass flow rate of the lubricant to the gearbox assembly through the primary gearbox lubricant supply lines or the secondary gearbox lubricant supply lines.

There is provided an intravascular blood pump for insertion into a patient's heart. The blood pump comprises a slotless permanent magnet motor contained within a housing, the motor having p magnet pole pairs and n phases, where p is an integer greater than zero, and n is an integer ≥3. The motor comprises a stator extending along a longitudinal axis of the housing and having 2np coils wound to form two coils per phase per magnet pole pair. The stator comprises inner and outer windings each comprising np coils electrically connected such that the current flowing through the coils is in the same direction, the coils of the outer winding arranged on an outer surface of the coils of the inner winding.

A work apparatus includes: a housing; a motor support unit designed separately from the housing, the housing being fixed to the motor support unit. A drive motor is designed as an electric motor for driving a tool and is attached to the motor support unit. A receptacle housing designed separately from the motor support unit for receiving at least one battery pack for supplying the drive motor with electrical power is fixed to the housing. The receptacle housing and the motor support unit are designed and arranged relative to each other in such a way that the receptacle housing is able to move relative to the motor support unit in order to reduce, in particular to prevent, direct transmission of inertial forces emanating from the receptacle housing to the motor support unit in the event of an impact load on the work apparatus.

The invention relates to an integrated oil cooling hub speed reduction electric wheel which comprises a motor, a planetary gear speed reducer and a bearing system which are arranged in the axial direction, and the planetary gear speed reducer is arranged in the motor and integrated with a brake. The bearing system comprises a rotor supporting bearing used for supporting a motor rotating system and a hub bearing used for supporting a wheel rotating system, the motor, the planetary gear reducer and the rotor supporting bearing are designed in an integrated oil cooling mode, and cavities where the motor, the planetary gear reducer and the rotor supporting bearing are located are communicated with one another. Cooling liquid cools and lubricates the motor, the planetary gear reducer and the rotor supporting bearing at the same time. Compared with the prior art, the electric wheel is compact in structure, the number of sealing pieces of the electric wheel can be reduced on the premise that the electric wheel has good structural rigidity, the axial size of an electric wheel assembly is reduced, and the electric wheel has the advantages of being good in cooling effect and easy to maintain.

A turbomachine for an aircraft comprising a stator, a turbine shaft and an electric machine arranged to the rear of the turbine shaft, and comprising an electric machine stator and an electric machine rotor, a rotationally fixed coupling carriage capable of moving in axial translation relative to the electric machine rotor between coupled and uncoupled positions, coupling members which are designed to engage with one another after the coupling carriage has moved from the uncoupled position to the coupled position and to transmit a torque from the turbine shaft to the electric machine rotor when they are engaged, and an elastic return member designed to elastically return the coupling carriage in axial translation to the coupled position.

A two-way oil-collecting reducer and an electric vehicle. The reducer includes an input gear, an intermediate gear set, an output gear, and an oil sump, and the oil sump includes a radial sump opening and a circumferential sump opening. An orientation of the radial sump opening is away from the intermediate gear set along a radial direction of the intermediate gear set. An orientation of the circumferential sump opening faces the output gear along a circumferential direction of the intermediate gear set. The radial sump opening and the circumferential sump opening are formed at the oil sump, so that the oil sump can collect lubricating oil churned by a gear train when the input gear drives, via the intermediate gear set, the output gear to rotate forward or reversely, to increase an amount of lubricating oil collected by the oil sump.

The invention provides a multi-dimensional supporting leg structure for lightweight steel ring splicing equipment, and relates to the field of tunnel engineering. The mounting base is fixedly connected with the frame, the telescopic driving mechanism is arranged between the mounting base and the supporting leg assembly, the angle adjusting mechanism is arranged between the cylinder barrel and the mounting base, and the self-locking mechanism is used for locking the cylinder barrel and the piston rod when the driving unit fails. The telescopic driving mechanism is composed of a cylinder barrel, a piston rod and a driving unit, the angle adjusting mechanism is driven through a first rotating shaft and a second rotating shaft which are perpendicular to each other and corresponding rotation, so that the cylinder barrel achieves double-shaft swing adjustment, the self-locking mechanism is composed of a locking rack, a movable tooth claw, a reset spring, an electromagnet and a permanent magnet, and power-on unlocking and power-off self-locking are achieved. According to the structure, the supporting polygon is obviously enlarged under the complex basic condition, the anti-overturning stability of equipment is improved, reliable supporting is kept when a hydraulic system fails, and the safety and adaptability of steel ring splicing operation in a tunnel are improved.

The invention discloses a mechanical wheel device for power generation. A mechanical wheel shaft is parallel to the ground and higher than the ground. The end of the supporting rod is assembled on a mechanical wheel shaft, the inner angle between the supporting rod and the shaft is smaller than 85 degrees, and the other end of the supporting rod is fastened to the inner edge of a gear ring of the mechanical wheel through a bolt. The gear ring is formed by splicing N sections of gear ring sections, and the splicing part of the gear ring sections is located at an inter-tooth recess between two teeth; the diameter of the mechanical wheel is larger than 13.0 m, and a mechanical wheel body of the mechanical wheel rotates in a wheel groove to generate mechanical energy through transmission of a driving gear.

The invention relates to the technical field of shaft protection assemblies, in particular to a shaft holding type shaft generator shaft fixing and centering protection assembly which comprises a generator body, a mounting structure, a protection structure, a shaft generator shaft, a first adjusting structure, a height adjusting structure and a second adjusting structure. The arrangement of the protection structure is convenient to limit the shaft of the shaft generator, the problem that the rotor and the stator collide with each other due to a large gap between the rotor and the stator when the generator body is hoisted or the rotor is secondarily installed is avoided, the operation is simple and convenient, the practicability is high, the arrangement of the first adjusting structure is convenient to accurately adjust the transverse position of the generator body, and the practicability is high. The shaft-driven generator shaft and other transmission shafts can be centered subsequently conveniently, the flexibility is high, the height of the generator body can be adjusted rapidly through the arrangement of the height adjusting structure, the longitudinal position of the generator body can be adjusted rapidly through the arrangement of the second adjusting structure, the operation efficiency is high, and repeated disassembly of bolts is avoided.

An electronic control clutch structure of an actuator device having a driver, a cam, a clutch wheel, and a transmission wheel is provided. The cam is connected to the driver, is driven by thereof, and includes a first actuating portion and a second actuating portion. The clutch wheel is connected to the rotating draft, rotates with thereof, and is arranged atop on the cam. The cam operatively actuates the clutch wheel. The transmission wheel is connected to the rotating draft. The clutch wheel and the transmission wheel are in a detached state when the clutch wheel is located on the first actuating portion. The clutch wheel and the transmission wheel are in an embedded state when the clutch wheel is located on the second actuating portion. The electronic control clutch structure may adapt uneven areas in the grass to perform weeding work according to the terrain changes of the grassland.

The invention provides a fused salt heat storage coupled compressed air energy storage cooperative power generation system and a control method thereof.The fused salt heat storage coupled compressed air energy storage cooperative power generation system comprises a data acquisition module, a multi-target optimization decision algorithm based on dynamic programming, an energy distribution module, a dynamic adjustment module and a safety protection module; a multi-objective optimization decision algorithm based on dynamic programming automatically switches system working modes, an energy distribution module optimizes fused salt and air flow of a high-temperature fused salt air heat exchanger, and a dynamic adjusting module adjusts fused salt pump flow, compressor rotating speed and valve opening in real time. And the safety protection module is used for monitoring and preventing over-temperature, fused salt solidification and pipeline corrosion. The problems that in the prior art, a fused salt heat storage type photo-thermal power generation system is insufficient in heat storage capacity under the extreme weather condition, a compressed air energy storage system depends on fossil fuel, the afterburning efficiency is low, and the energy loss is caused due to the low system coupling degree can be effectively solved.

An electric work machine with improved workability at high output, configured to cut a work target, is provided. The electric work machine comprises: a working portion configured to cut the work target and a main body including: a housing; a flow path forming portion; a motor; and a control unit, wherein the motor generates rotational power for driving the working portion, the control unit electrically controls rotation of the motor, the flow path forming portion forms an air flow path including a first air flow path and a second air flow path, the first air flow path communicates with an exterior of the housing to allow external air to flow to the motor via the control unit, and the second air flow path communicates with the exterior of the housing so as to allow external air to flow directly to the motor.

The invention discloses a driving module of a reciprocating type shaver. The driving module comprises a base, a driving assembly and a driving assembly, the two ends of the deflection frame are fixed to the base through elastic pieces to form a frame structure. The output shaft is mounted above the deflection frame; the horizontal motor is arranged on the base; the cam is arranged on a motor power shaft, and grooves with parallel normal sections and equal width are formed in the surface of the cam; the lower end of the rocker arm is hinged to the base, a middle rocker arm shaft is assembled in the groove, and the upper end is in linkage with the deflection frame. Rotary motion is converted into high-frequency linear swing through precise cooperation of the cam and the rocker arm, the transmission efficiency is high, and noise is low; the integrated modular structure of the base and the motor enables the cam and the rocker arm to be matched more accurately and reliably; the double-output shaft symmetrically and reversely swings to realize dynamic balance vibration reduction; the compact horizontal layout saves space; the product has the economical efficiency of a common motor and the performance advantages of a linear motor, the comfort and reliability of a shaver product are improved, and meanwhile the cost is reduced.

The invention discloses an axial flux motor, an electric drive system and a vehicle. The axial magnetic flux motor adopts a single-stator and double-rotor structure in which a stator is arranged in the middle and rotors are arranged on two sides, and comprises a stator assembly, and a first rotor assembly and a second rotor assembly which are distributed on two sides of the stator assembly, and the first rotor assembly and the second rotor assembly are respectively connected with the stator assembly through a first rotor bearing and a second rotor bearing. The single-stator double-rotor axial flux motor only comprises one stator assembly, so that the energy loss is low, the heat productivity is low, the power density is higher, and the energy conversion efficiency is higher. One end of the rotor shaft is fixedly connected with the output part of the first rotor assembly, and the other end of the rotor shaft is in transmission connection with the output part of the second rotor assembly. The tolerance of the relative positions of the two rotor assemblies is smaller, the magnetic poles of the magnetic steel of the two rotor assemblies can be in one-to-one correspondence, and the difficulty of motor calibration after the motor assembly is assembled is reduced.

The invention discloses a flexible mechanical arm driving system for minimally invasive interventional surgery, a flexible mechanical arm comprises a hollow first sleeve assembly which is coaxially configured, the first sleeve assembly comprises an inner tube and an outer tube, the inner tube and the outer tube are thin-walled tubes, the inner tube is arranged in the outer tube in a penetrating manner, and the inner tube and the outer tube are fixedly connected at the far end part; the inner tube and the outer tube are each provided with a straight tube section at the near end and a deformation section at the far end, and the deformation sections can be bent and deformed when the inner tube is pushed / pulled. The driving system comprises an instrument assembly and a driving module assembly; a driving driven module is arranged in the instrument assembly, and the flexible mechanical arm is connected with the driving driven module; a driving driving module and a PCB control board are arranged in the driving module assembly, the driving driving module is in transmission connection with the driving driven module, and the driving module assembly is used for driving the flexible mechanical arm to do linear, rotating and bending movement. The driving device is used for driving the coaxial antagonism tubular flexible mechanical arm to achieve bending, rotating and linear motion, full-automatic control can be achieved, and the control accuracy and safety are high.

The invention provides an electric engine, a control method, a related device, a motor controller and an aircraft, and relates to the technical field of aircrafts. The electric engine comprises a power motor, a heat dissipation system and a control module, a cavity is formed in the power motor, the control module is integrated in the cavity, the space occupied by the electric engine is reduced, and therefore the size of the aircraft is reduced; the control module comprises a plurality of integrated driving modules, part of the driving modules are electrically connected with the power motor so as to control the power motor, and part of the driving modules are electrically connected with a heat dissipation motor in the heat dissipation system so as to control the heat dissipation motor. The performance and efficiency of the electric engine are improved through unified integrated control over the power motor and the heat dissipation motor. And through a unified control architecture, the system design is simplified, the development and maintenance cost is reduced, and the maintainability of the electric engine is improved.

The invention relates to the technical field of electric vehicles, and provides a cooling system for a hub motor, the hub motor and an electric vehicle, the cooling system for the hub motor comprises a base and a transmission shell, the base is internally provided with a first cavity and a second cavity, the second cavity is provided with a gear transmission assembly, the side wall of the first cavity is provided with a first cooling liquid flow channel, and the side wall of the second cavity is provided with a second cooling liquid flow channel; a second cooling liquid flow channel is formed in the side wall of the second cavity; the transmission shell is of a cylindrical structure with the first end open and the second end closed, the transmission shell is arranged outside the second cavity in a sleeving mode, the first end of the transmission shell is rotationally connected with the machine base in a sealed mode, the transmission shell is connected with the hub, an oil cavity is formed between the inner side wall of the transmission shell and the outer side wall of the machine base, and the oil cavity is communicated with the second cavity. Through the arrangement, the second cooling liquid flow channel can be used for cooling the second cavity, gear oil in the second cavity can enter the oil cavity, and the second cooling liquid flow channel can also be used for cooling the gear oil in the oil cavity, so that the problem of over-temperature failure of the motor and the gear can be avoided.

The present invention relates to the technical field of humanoid robots. Disclosed are a leg power structure for a humanoid robot and a humanoid robot. The leg power structure for a humanoid robot of the present invention comprises a stride driving unit, thigh body assemblies, shank body assemblies and foot assemblies, which are arranged on the waist of a humanoid robot and are connected in sequence, wherein the striding driving unit is configured to drive the whole leg power structure to swing forward and backward; each thigh body assembly comprises a first thigh body and a second thigh body; each shank body assembly comprises a shank body; each foot assembly comprises a foot support member; hip joint driving units are provided on the upper portions of the first thigh bodies so as to drive the whole leg power structure to swing to the left and right; and a first driving unit is provided between each first thigh body and the corresponding second thigh body, so as to realize relative circumferential rotation between the first thigh body and the second thigh body. The whole leg power structure of the present invention has a rational design, is compact, and better meets the requirements of the humanoid robot for various motion postures.

Various advanced wiring assemblies for a humanoid robot are disclosed. The wiring assembly includes a first actuator printed circuit board (PCB) positioned near a first side of a first actuator and including a first PCB terminal. A second side of the first actuator includes: an output, an actuator cover coupled to the output and having a wire bundle opening formed therein, and an actuator opening formed through an extent of the second side. The wiring assembly includes a wire bundle having: a first end connector coupled to the first PCB terminal, a second end connector coupled to the second PCB terminal, and a plurality of wires that extend between the first end connector and the second end connector, and wherein said plurality of wires extends through the actuator opening of the second side of the first actuator and the wire bundle opening formed in the actuator cover.

The present application discloses a coaxially integrated servo motor pump with integrated drive control functions, comprising a motor pump housing, a controller housing, and an electrical connector. The motor pump housing is provided with a blind hole, a first cavity for accommodating a plunger pump assembly, and a second cavity for accommodating a servo motor assembly, wherein the plunger pump assembly and the servo motor assembly are connected via a rotating shaft. The controller housing is connected to one end of the motor pump housing, and a drive controller is provided within the controller housing. The blind hole communicates with the second cavity, and the electrical connector is sealed and connected to the blind hole, and the electrical connector is electrically connected to the servo motor assembly and the drive controller. The distribution plate and the sealing assembly are respectively sealed with both ends of the motor pump housing. Cooling is achieved through a cooling oil channel, which connects from one end of the motor pump housing near the plunger pump assembly to the second cavity and then divides into two paths, one path passing through the center of the rotating shaft, and the other path connecting to the first cavity and passing through the distribution plate. The coaxial integration of the drive control functions is achieved, and the cooling effect is good.

The invention discloses a wearable knee joint self-powered sensing system and a use method, relates to the technical field of motion monitoring, and solves the technical problem that a motion detection sensor integrating light weight and a self-powered mode is lacked in the prior art. The motor comprises a stator part and a rotor part which are rotationally arranged, a center shaft penetrating through the stator part is arranged on the rotor part, and the stator part and the rotor part are rotationally connected through the center shaft; and a motion state monitoring module and a self-powered module are sequentially and coaxially arranged at the connecting part of the stator part and the rotor part, so that the rotation angle and direction of the knee joint are accurately detected, and key data support is provided for subsequent motion analysis and health monitoring.

The utility model relates to the technical field of energy storage equipment, and particularly discloses a dual-motor operation module, a fusion switch and an energy storage system, and the dual-motor operation module comprises an operation housing, and a main loop operation mechanism and a pre-charging loop operation mechanism which are disposed in the operation housing. A first opening and a second opening are formed in the operation shell, the first opening is provided with a first output piece linked with a main loop operation mechanism, and the second opening is provided with a second output piece linked with a pre-charging loop operation mechanism; and the main loop operating mechanism and the pre-charging loop operating mechanism can respectively drive the fusion switch to be switched on and switched off through the corresponding first output piece and the second output piece. The reliability of the fusion switch can be effectively improved through the main loop operation mechanism and the pre-charging loop operation mechanism, and stable control over the energy storage system is achieved.

The invention relates to a multi-source system comprising an electric machine (M), of the type comprising a rotor and a stator (1), the stator (1) comprising a plurality of windings (10, 11, 12) made of turns of insulated conductive material, each winding (10, 11, 12) comprising a plurality of independently powered coils (100, 101, 102), characterised in that the system also comprises a plurality of DC power sources and a plurality of power electronics converters associated with different coils (100, 101, 102) of the electric machine (M), each power source powering one or more power electronics converters and each power source being connected to at least one coil (100, 101, 102) of each winding (10, 11, 12) of the electric machine (M).

The invention provides a related method of linear motor equipment, the method is applied to industrial conveying, and the method comprises the following steps: creating a plurality of position points, the plurality of position points are distributed along a stator line body, the plurality of position points are used for controlling the moving path of a mover module, and the mover module is used for controlling the moving path of the mover module based on the conveying process information of the mover module. And corresponding dynamic pointing information is configured for each position point, and the dynamic pointing information is used for dynamically indicating a pointing object of the position point according to a conveying condition existing in the transportation scene. According to the method, the dynamic pointing information can be configured for each position point through the conveying process information of the mover module, the function of dynamically adjusting the pointing of the position points is achieved, the position points are used for controlling the moving path of the mover module, and the dynamic adjustment of the pointing of the position points can enable the moving path of the mover module to have variability; the moving flexibility of the mover module is improved, so that the transportation efficiency is improved, and the device is more suitable for complex and changeable working scenes.