A motor system includes a motor having a rotor with a plurality of magnetic poles disposed adjacent a plurality of stator elements. Motion of the rotor is responsive to a change in magnetic flux from the stator elements. A generator comprising one or more coils and/or pickups is configured to generate electromagnetic signals responsive to the motion of the rotor, the change in flux from the stator elements, or both. A controller is configured to generate power from the signals, for operating a processor with memory. The processor and memory are configured to receive the signals, determine a count of cycles and/or direction changes of the motor based on the signals, and store the count in the memory.
An integrated motor linear actuator system includes one or more stator stages inside a housing. The stator stages have a winding and a stator core disposed about a common longitudinal axis, with a plurality of stator teeth configured to guide magnetic flux generated by the winding. A rotor is disposed along the longitudinal axis, within the stator stages, with a plurality of magnetic poles distributed circumferentially about the outer surface, adjacent the stator teeth, so that the stator stages are configured to drive the rotor into rotational motion about the longitudinal axis via the magnetic flux. A thrust tube and screw assembly are operationally coupled to the rotor, and configured to convert the rotational motion into linear motion of the thrust tube.
H02K 9/22 - Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
H02K 3/28 - Layout of windings or of connections between windings
3.
TIP DRESSER SYSTEM WITH INTEGRATED TRANSVERSE FLUX MOTOR
An integrated tip dresser motor system includes a housing with one or more stator stages coupled to the inner surface. Each of the stator stages has a winding and a stator core with a plurality of stator teeth circumferentially distributed about a longitudinal axis, at an inner diameter of the stator core. A rotor is disposed about the longitudinal axis, inside the stator core, with a plurality of magnetic poles circumferentially distributed along an outer surface, adjacent the stator teeth. One end of the rotor each includes an end effector extending past the housing that is configured to connect to a tip dresser assembly. The winding is configured to generate magnetic flux, and the stator core is configured to guide the flux to drive the rotor, with the flux oriented transverse to the direction of rotational motion.
H02K 21/14 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
H02K 7/14 - Structural association with mechanical loads, e.g. with hand-held machine tools or fans
H02K 7/116 - Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
B23B 5/16 - Turning-machines or devices specially adapted for particular workAccessories specially adapted therefor for bevelling, chamfering, or deburring the ends of bars or tubes
An integrated power clamp motor system includes a housing with one or more stator stages coupled to the inner surface. Each of the stator stages has a winding and a stator core with a plurality of stator teeth circumferentially distributed about a longitudinal axis, at an inner diameter of the stator core. A rotor is disposed about the longitudinal axis, inside the stator core, with a plurality of magnetic poles circumferentially distributed along an outer surface, adjacent the stator teeth. A power clamp assembly is coupled to the rotor via one or more of a screw assembly, a thrust rod, and a transmission, and operational between first and second positions responsive to rotation of the rotor.
B25B 5/10 - Arrangements for positively actuating jaws using screws
H02K 5/22 - Auxiliary parts of casings not covered by groups , e.g. shaped to form connection boxes or terminal boxes
H02K 7/06 - Means for converting reciprocating motion into rotary motion or vice versa
H02K 7/116 - Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
H02K 11/21 - Devices for sensing speed or position, or actuated thereby
H02K 21/14 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
An integrated motor linear actuator system includes one or more stator stages inside a housing. The stator stages have a winding and a stator core disposed about a common longitudinal axis, with a plurality of stator teeth configured to guide magnetic flux generated by the winding. A rotor is disposed along the longitudinal axis, within the stator stages, with a plurality of magnetic poles distributed circumferentially about the outer surface, adjacent the stator teeth, so that the stator stages are configured to drive the rotor into rotational motion about the longitudinal axis via the magnetic flux. A thrust tube and screw assembly are operationally coupled to the rotor, and configured to convert the rotational motion into linear motion of the thrust tube.
H02K 7/06 - Means for converting reciprocating motion into rotary motion or vice versa
H02K 21/12 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with stationary armatures and rotating magnets
H02K 16/04 - Machines with one rotor and two stators
H02K 21/14 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
H02K 1/02 - Details of the magnetic circuit characterised by the magnetic material
H02K 5/20 - Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
A linear actuator system having an actuator housing, a motor assembly, a screw shaft, a thrust tube, and a nut assembly. The nut assembly is engaged with the screw shaft and directly coupled with the thrust tube. The nut assembly can define a mechanical fitting for direct physical engagement between the thrust tube and the nut assembly, absent additional load bearing components intervening therebetween. The nut assembly is configured to convert rotational motion of the rotor about the longitudinal axis to linear motion of the thrust tube along the longitudinal axis. A cooling loop can be at least partially embedded, potted or seated within the actuator housing, with a thermally conductive material disposed at least partially about the cooling loop to conduct heat from the actuator housing.
A linear actuator system having an actuator housing, a motor assembly, a screw shaft, a thrust tube, and a nut assembly. The nut assembly is engaged with the screw shaft and directly coupled with the thrust tube. The nut assembly can define a mechanical fitting for direct physical engagement between the thrust tube and the nut assembly, absent additional load bearing components intervening therebetween. The nut assembly is configured to convert rotational motion of the rotor about the longitudinal axis to linear motion of the thrust tube along the longitudinal axis. A cooling loop can be at least partially embedded, potted or seated within the actuator housing, with a thermally conductive material disposed at least partially about the cooling loop to conduct heat from the actuator housing.
An apparatus having an actuator having a motor, a housing and a thrust rod, where the actuator is configured to convert rotational motion of the motor into axial motion of the thrust rod. A movable holder is coupled to the thrust rod and configured for axial motion of a tool coupling therewith. A bearing assembly is coupled to the actuator, extending along an axis thereof. The bearing assembly is configured to engage with the bearing to provide positional stability for the movable holder and tool coupling when positioned along the actuator axis by motion of the thrust rod.
An apparatus or actuator system having a motor, a housing and a thrust rod or thrust tube, where the actuator is configured to convert rotational motion of the motor into axial motion of the thrust tube for axial motion of a tool coupling therewith. A guide assembly is coupled to the actuator housing, extending along an axis thereof. The guide assembly comprises a guide shaft and a coupling between the guide shaft and the thrust tube, and is configured to provide positional stability for the tool coupling when positioned along the actuator axis by motion of the thrust tube.
H02K 7/00 - Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
H02K 7/06 - Means for converting reciprocating motion into rotary motion or vice versa
A system (10, 14) includes one or more sensors configured for acquiring data related to operational conditions of a motor actuator (12), a processor (62) configured for analyzing the data to determine a status of the motor actuator (12), and memory (64) for storing data representative of the operational conditions. A status indicator is generated based on the analysis of the operational conditions, for example to represent system capabilities, normal operating modes, and failure modes of the motor actuator (12). The system (10, 14) can be configured to communicate the status indicator to a user interface (21, 66) or higher-level controller (20, 22).
H02K 7/06 - Means for converting reciprocating motion into rotary motion or vice versa
H02K 11/35 - Devices for recording or transmitting machine parameters, e.g. memory chips or radio transmitters for diagnosis
F16H 19/06 - Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary motion and reciprocating motion comprising an endless flexible member
An actuator (10) system includes an output rod (20) coupled to a piston member (30) disposed within an actuator housing (14) or cylinder (14). A belt drive (24) is configured to drive the piston (30) or similar coupling member (30) in reciprocal motion within the housing (14), along its longitudinal axis. The opposite end (22) of the output rod (20) is selectively positioned with respect to the exterior of the actuator housing (14) in response to the motion of the piston (30) within the housing (14); e.g., in order to manipulate a tool or workpiece at the opposite (exterior) end (22) of the output rod (20), or to perform another automated machine task.
F16H 19/06 - Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary motion and reciprocating motion comprising an endless flexible member
Devices and methods for operating a linear actuator, optionally for use in controlling a choke valve as part of a managed pressure drilling operation. Such a device may include a motor, a transmission, a linear actuator and an override mechanism selectively engageable with the transmission to enable operation of the linear actuator independently of the motor.
An actuator system includes a housing with a screw shaft extending along a longitudinal axis. The stator component of an electric motor is coupled to the housing, with a rotor extending along the longitudinal axis. A thrust tube is engaged with the screw shaft, for example with a nut assembly configured to convert rotational motion of the rotor into linear motion of the thrust tube. A modular cooling assembly is selectively coupled to the exterior surface of the actuator housing, and configured to dissipate heat.
F16H 57/04 - Features relating to lubrication or cooling
H02K 9/19 - Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
H02K 7/06 - Means for converting reciprocating motion into rotary motion or vice versa
H02K 9/22 - Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
H02K 5/173 - Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
An actuator system includes a housing with a screw shaft extending along a longitudinal axis. The stator component of an electric motor is coupled to the housing, with a rotor extending along the longitudinal axis. A thrust tube is engaged with the screw shaft, for example with a nut assembly configured to convert rotational motion of the rotor into linear motion of the thrust tube. A modular cooling assembly is selectively coupled to the exterior surface of the actuator housing, and configured to dissipate heat.
H02K 5/173 - Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
H02K 7/06 - Means for converting reciprocating motion into rotary motion or vice versa
H02K 9/19 - Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
H02K 9/22 - Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
H02K 5/20 - Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
A system (10, 14) includes one or more sensors configured for acquiring data related to operational conditions of a motor actuator (12), a processor (62) configured for analyzing the data to determine a status of the motor actuator (12), and memory (64) for storing data representative of the operational conditions. A status indicator is generated based on the analysis of the operational conditions, for example to represent system capabilities, normal operating modes, and failure modes of the motor actuator (12). The system (10, 14) can be configured to communicate the status indicator to a user interface (21, 66) or higher- level controller (20, 22).
A compact, axially aligned brushless servo motor actuation unit configured to manipulate a choke valve to control the pressure within a borehole during managed pressure drilling. The actuation unit including a brushless servo, a gear reduction assembly and a planetary roller actuator substantially aligned along a longitudinal axis and housed within a tubular housing, the gear reduction assembly defining a hollow core sized to enable a portion of a roller screw of the planetary roller actuator to pass therethrough for the purpose of reducing the overall length of the actuation unit along the longitudinal axis.
H02K 7/06 - Means for converting reciprocating motion into rotary motion or vice versa
H02K 7/116 - Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
H02K 7/102 - Structural association with clutches, brakes, gears, pulleys or mechanical starters with friction brakes
H02K 7/00 - Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
H02K 11/21 - Devices for sensing speed or position, or actuated thereby
An actuator (10) system includes an output rod (20) coupled to a piston member (30) disposed within an actuator housing (14) or cylinder (14). A belt drive (24) is configured to drive the piston (30) or similar coupling member (30) in reciprocal motion within the housing (14), along its longitudinal axis. The opposite end (22) of the output rod (20) is selectively positioned with respect to the exterior of the actuator housing (14) in response to the motion of the piston (30) within the housing (14); e.g., in order to manipulate a tool or workpiece at the opposite (exterior) end (22) of the output rod (20), or to perform another automated machine task.
F16H 19/06 - Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary motion and reciprocating motion comprising an endless flexible member
09 - Scientific and electric apparatus and instruments
Goods & Services
Electric Actuators; Electric Linear Actuators; Electric Welding Actuators; Electric Valve Actuators; Electromechanical Actuators; Servo Electric Linear Actuators; Servo Electric Resistance Spot Welding Actuators; Components of Electric Actuators; Components of Electric Valve Actuators; Components of Electromechanical Actuators; Components of Electromechanical Actuators, Namely, Electronically Operated Rod Screw Cylinders and Electric Screw and Belt Driven Rodless Actuators; Integrated Drive/Motor/Actuator Products, Namely, Electric Actuators That Incorporate Internal Motor and/or Drive Technology Into the Actuator; Electrical Controllers for Use in Industrial Automation Machinery
21.
Coupled capacitive and magnetic servo motor systems
A motor system comprises a rotor shaft, and a magnetic drive motor and a capacitive drive motor. An engagement system is configured for selectively engaging one or both of the magnetic drive motor and the capacitive drive motor with the rotor shaft, in order to rotate the rotor shaft at a desired rotational speed and generate a desired output torque. An actuator may be coupled to the rotor shaft in order to convert the rotational speed and/or output torque (or a rotational position of the rotor shaft) for operation on a load, for example to position the load rotationally or linearly with respect to the rotor axis, or to exert a force or torque on the load.
H01L 41/04 - SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR - Details thereof - Details of piezo-electric or electrostrictive elements
H02K 7/108 - Structural association with clutches, brakes, gears, pulleys or mechanical starters with friction clutches
H02N 1/00 - Electrostatic generators or motors using a solid moving electrostatic charge carrier
H02K 7/00 - Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
22.
COUPLED CAPACITIVE AND MAGNETIC SERVO MOTOR SYSTEMS
A motor system comprises a rotor shaft, and a magnetic drive motor and a capacitive drive motor. An engagement system is configured for selectively engaging one or both of the magnetic drive motor and the capacitive drive motor with the rotor shaft, in order to rotate the rotor shaft at a desired rotational speed and generate a desired output torque. An actuator may be coupled to the rotor shaft in order to convert the rotational speed and/or output torque (or a rotational position of the rotor shaft) for operation on a load, for example to position the load rotationally or linearly with respect to the rotor axis, or to exert a force or torque on the load.
An apparatus comprises an actuator having a motor, a housing and a thrust rod, where the actuator is configured to convert rotational motion of the motor into axial motion of the thrust rod. A movable holder is coupled to the thrust rod, and configured for axial motion of a tool coupling therewith. A bearing assembly is coupled to the actuator, extending along an axis thereof. The bearing assembly is configured to engage with the bearing to provide positional stability for the movable holder and tool coupling, when positioned along the actuator axis by motion of the thrust rod.
An apparatus comprises an actuator having a motor, a housing and a thrust rod, where the actuator is configured to convert rotational motion of the motor into axial motion of the thrust rod. A movable holder is coupled to the thrust rod, and configured for axial motion of a tool coupling therewith. A bearing assembly is coupled to the actuator, extending along an axis thereof. The bearing assembly is configured to engage with the bearing to provide positional stability for the movable holder and tool coupling, when positioned along the actuator axis by motion of the thrust rod.
09 - Scientific and electric apparatus and instruments
Goods & Services
Electric Actuators; Electric Valve Actuators; Electromechanical Actuators; Components of Electric Actuators; Components of Electric Valve Actuators; Components of Electromechanical Actuators
An assembly comprises a housing, a motor within the housing, and a thrust tube with an anti-rotation mechanism. The motor comprises a hollow rotor. An externally threaded screw shaft is coupled to the hollow rotor for rotation therewith. An internally threaded nut is coupled to the externally threaded screw shaft, wherein rotation of the screw shaft causes the nut to move axially. The thrust tube is operably connected with the nut, and the anti-rotation mechanism is attached to the thrust tube to substantially prevent rotation relative the housing.
F16H 3/06 - Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion with worm and worm-wheel or gears essentially having helical or herring-bone teeth
F16H 27/02 - Step-by-step mechanisms without freewheel members, e.g. Geneva drives with at least one reciprocating or oscillating transmission member
F16H 29/02 - Gearings for conveying rotary motion with intermittently-driving members, e.g. with freewheel action between one of the shafts and an oscillating or reciprocating intermediate member, not rotating with either of the shafts
F16H 29/20 - Gearings for conveying rotary motion with intermittently-driving members, e.g. with freewheel action the intermittently-acting members being shaped as worms, screws, or racks
A method for manufacturing a linear actuator includes inserting a portion of a thrust member of the actuator into a casting portion of a molding apparatus. The casting portion includes a model screw member having a threaded portion. A molding material can be added into the cast portion to overmold a nut to the thrust member. Thus, the nut will include a threaded portion on an internal circumference mateable with the threaded portion of the model screw member. The overmolded nut and thrust tube member may be coupled to a screw shaft of the actuator, such that the threaded portion of the nut mates with a threaded portion of the screw shaft.
B21D 53/10 - Making other particular articles parts of bearingsMaking other particular articles sleevesMaking other particular articles valve seats or the like
The present disclosure relates to a manual override tool for an electric actuator. The manual override tool includes an accessible first end, a shaft operably connected with the first end and is movable in a linear direction and is rotatable, and a plurality of gear teeth on the shaft. The accessible first end is used to engage and disengage the plurality of gear teeth with a plurality of notches provided on an interior rotor of the electric actuator, such that the accessible first end may be used to manually operate the electric actuator.
H02K 7/00 - Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
09 - Scientific and electric apparatus and instruments
Goods & Services
Mechanical, electromechanical and pneumatic power transmitting mechanisms, namely, rodless linear actuators, rod style linear actuators, rod cylinder linear thrusters; servo electric linear actuators, air-over-oil intensifiers and cylinders; brakes for machine tools and industrial applications; and pneumatic clutches; all the aforementioned being for use in machines; components of electromechanical actuators, namely, rod screw cylinders, screw and belt driven rodless actuators, and integrated servo motors for use in industrial automation machinery; servo and stepper motors, controls and drives for use in industrial automation machinery. Servo electric resistance spot welding actuators.
09 - Scientific and electric apparatus and instruments
12 - Land, air and water vehicles; parts of land vehicles
Goods & Services
Mechanical, electromechanical and pneumatic power transmitting mechanisms, namely, rodless linear actuators, rod style linear actuators, rod cylinder linear thrusters; servo electric linear actuators, air-over-oil intensifiers and cylinders; brakes for machine tools and industrial applications; and pneumatic clutches; all the aforementioned being for use in machines; components of electromechanical actuators, namely, rod screw cylinders, screw and belt driven rodless actuators, and integrated servo motors for use in industrial automation machinery; servo and stepper motors, controls and drives for use in industrial automation machinery. Servo electric resistance spot welding actuators. Land motor vehicle parts, namely, brakes and clutches; anti-skid braking systems and parts therefor.
09 - Scientific and electric apparatus and instruments
Goods & Services
Components of Electromechanical Actuators, Namely, Stepper Motors not for Land Vehicles, Servo Drives for Motors for Use in Industrial Automation Machinery; Electronic Integrated Servo Motors for Use in Industrial Automation Machinery; Electronic Servo and Stepper Motors, and Electric Drives for Use in Industrial Automation Machinery Components of Electromechanical Actuators, Namely, Electronically Operated Rod Screw Cylinders, Electric Screw and Belt Driven Rodless Actuators, Integrated Drive/Motor/Actuator Products and Integrated Motor/Actuator Products, Namely, Electric Actuators that Incorporate Internal Motor and/or Drive Technology into the Actuator, and Electric Controls for Use in Industrial Automation Machinery
A linear actuator is provided with an integral permanent magnet, brushless motor capable of axial, self adjustment of the rotor position within the stator for field weakening. Axial displacement of the rotor within the stator allows for significantly improved speed performance from aligned rotor/stator components during light axial loading. Upon contact with a load, the screw and nut, as an integral part of the motor rotor, self align to fully engage within the stator for generation of high forces with minimal current. This axial shift can further be used as a high precision, low cost measure of the force applied for quality assurance purposes.
H02K 41/00 - Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
H02K 7/06 - Means for converting reciprocating motion into rotary motion or vice versa
A friction stir weld apparatus having a linear drive actuator and a separate friction stir weld device. The linear actuator and the friction stir weld device are driven by concentric motors. In the preferred embodiment, the thrust member of the actuator is connected to the friction stir weld device within or adjacent to the friction stir weld device motor to advance and retract the friction stir weld device along a linear axis concentric with the actuator and friction stir weld device motors.
B23K 20/12 - Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by frictionFriction welding
mechanical and pneumatic power transmitting mechanisms, namely, rodless linear actuators, rod style linear actuators, rod cylinder linear thrusters; air-over-oil intensifiers and cylinders; brakes for machine tools and industrial applications; and pneumatic clutches; all the aforementioned being for use in machines
components of electromechanical actuators, namely, rod screw cylinders, screw and belt driven rodless actuators, and integrated servo motors for use in industrial automation machinery; servo and stepper motors, controls and drives for use in industrial automation machinery
12 - Land, air and water vehicles; parts of land vehicles
Goods & Services
machine parts, namely, industrial brakes and clutches, gear drives, cable cylinders, hydraulic and pneumatic cylinders and rotary actuators [ land motor vehicle parts, namely, brakes and clutches ]
A compact, axially aligned brushless servo motor actuation unit configured to manipulate a choke valve to control the pressure within a borehole during managed pressure drilling. The actuation unit including a brushless servo, a gear reduction assembly and a planetary roller actuator substantially aligned along a longitudinal axis and housed within a tubular housing, the gear reduction assembly defining a hollow core sized to enable a portion of a roller screw of the planetary roller actuator to pass therethrough for the purpose of reducing the overall length of the actuation unit along the longitudinal axis.
A system includes one or more sensors configured for acquiring data related to
operational conditions of a motor actuator, a processor configured for analyzing the data to determine a status of the motor actuator, and memory for storing data representative of the operational conditions. A status indicator is generated based on the analysis of the operational conditions, for example to represent system capabilities, normal operating modes, and failure modes of the motor actuator. The system can be configured to communicate the status indicator to a user interface or higher-level controller.
An actuator system includes a housing with a screw shaft extending along a longitudinal axis. The stator component of an electric motor is coupled to the housing, with a rotor extending along the longitudinal axis. A thrust tube is engaged with the screw shaft, for example with a nut assembly configured to convert rotational motion of the rotor into linear motion of the thrust tube. A modular cooling assembly is selectively coupled to the exterior surface of the actuator housing, and configured to dissipate heat.
H02K 5/173 - Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
H02K 5/20 - Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
H02K 7/06 - Means for converting reciprocating motion into rotary motion or vice versa
H02K 9/19 - Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
H02K 9/22 - Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
A motor system includes a motor having a rotor with a plurality of magnetic poles disposed adjacent a plurality of stator elements. Motion of the rotor is responsive to a change in magnetic flux from the stator elements. A generator comprising one or more coils and/or pickups is configured to generate electromagnetic signals
responsive to the motion of the rotor, the change in flux from the stator elements, or both. A controller is configured to generate power from the signals, for operating a processor with memory. The processor and memory are configured to receive the signals, determine a count of cycles and/or direction changes of the motor based on the signals, and store the count in the memory.
H02K 7/06 - Means for converting reciprocating motion into rotary motion or vice versa
H02K 7/14 - Structural association with mechanical loads, e.g. with hand-held machine tools or fans
H02K 11/04 - Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for rectification
H02K 11/20 - Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
A linear actuator system having an actuator housing, a motor assembly, a screw shaft, a thrust tube, and a nut assembly. The nut assembly is engaged with the screw shaft and directly coupled with the thrust tube. The nut assembly can define a mechanical fitting for direct physical engagement between the thrust tube and the nut assembly, absent additional load bearing components intervening therebetween. The nut assembly is configured to convert rotational motion of the rotor about the longitudinal axis to linear motion of the thrust tube along the longitudinal axis. A cooling loop can be at least partially embedded, potted or seated within the actuator housing, with a thermally conductive material disposed at least partially about the cooling loop to conduct heat from the actuator housing.
An integrated motor linear actuator system includes one or more stator stages inside a housing. The stator stages have a winding and a stator core disposed about a common longitudinal axis, with a plurality of stator teeth configured to guide magnetic flux generated by the winding. A rotor is disposed along the longitudinal axis, within the stator stages, with a plurality of magnetic poles distributed circumferentially about the outer surface, adjacent the stator teeth, so that the stator stages are configured to drive the rotor into rotational motion about the longitudinal axis via the magnetic flux. A thrust tube and screw assembly are operationally coupled to the rotor, and configured to convert the rotational motion into linear motion of the thrust tube.
H02K 5/20 - Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
H02K 7/06 - Means for converting reciprocating motion into rotary motion or vice versa
H02K 16/04 - Machines with one rotor and two stators
H02K 21/12 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with stationary armatures and rotating magnets
H02K 21/14 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
