323results about "Magnetically actuated clutches" patented technology

The utility model discloses an electromagnetic double clutch type power mechanism, which comprises a motor and an electromagnetic transmission mechanism, the structure of the electromagnetic transmission mechanism comprises a fixing ring, two electromagnetic coils are arranged on the fixing ring in parallel, an armature is fixedly arranged on the outer side of each of two opposite ends in the axial direction of the fixing ring, and a clutch outer core is axially fixed with the fixing ring. A fast-gear clutch assembly and a slow-gear clutch assembly are arranged in the clutch outer core side by side in a circumferential transmission mode, and an inner shifting structure acting on the fast-gear clutch assembly and the slow-gear clutch assembly is arranged in the clutch outer core. A fast gear and slow gear transmission set in transmission connection with the transmission shaft is arranged in the clutch outer core and used for achieving fast gear and slow gear switching transmission. And the electromagnetic force of the two electromagnetic coils realizes the axial sliding of the clutch outer core, so that the fast-gear clutch assembly and the slow-gear clutch assembly are staggered for separation and reunion.

The invention provides an electromagnetic clutch combination control method, a power system and a medium. The electromagnetic clutch combination control method comprises the steps that the real-time current of an electromagnetic clutch, the accelerator opening degree change rate and the vehicle speed are obtained; under the condition that the vehicle meets the pre-combination condition of the electromagnetic clutch, a first target value is determined according to the number of combination failures of the electromagnetic clutch, and current with the magnitude being the first target value is applied to an electromagnetic valve of the electromagnetic clutch so as to drive the electromagnetic clutch to be combined; under the condition that the real-time current of the electromagnetic clutch is larger than or equal to the first target value, preloading torque is determined based on the accelerator opening degree change rate and the vehicle speed; and controlling the output torque of the engine according to the preloading torque. The pre-combination time is shortened while successful combination of the electromagnetic clutch is guaranteed, and the dynamic property of the whole vehicle is improved.

A modular passive-to-active exoskeleton system utilizes motor unit modules, an electromagnetic-clutch power transmission system, and biometric control. The passive exoskeleton has a stamina-increasing “chairless chair” function and optional use of magnetic ball-and-socket joints and knee torsion springs. To convert the exoskeleton system into an active robotic wearable device, modular attachments allow for motor units to be securely connected to the exoskeletal frame. An exoskeleton system may contain a knee motor unit that has a transmission system with an electromagnetic clutch that enables a passive mode, active mode, and / or hybrid mode. The motor units are controlled using wireless biometric motion sensors that measure limb joint angle and muscle activity. These motor units also communicate via wireless transmission with a central processing unit of the exoskeleton. This central processing unit serves as a gateway for user feedback from an Internet-of-Things (IoT) device, such as a smartphone, tablet, computer, etc.

A method for power transmission method includes providing first and second shafts, a gear assembly having first and second gear ratios, and first and second coupling assemblies. The first coupling assembly enabling torque transfer from the first shaft to the second shaft, and the second coupling assembly enabling torque transfer from the first shaft to the second shaft. The speed of the first shaft varies, wherein the deployment of a locking element of the second coupling assembly is based on the speed of the first shaft.

The invention belongs to the technical field of integrated circuits, and particularly relates to a circuit for controlling actuation of a clutch, the circuit comprises a control signal conversion circuit and a delay signal switching circuit, the control signal conversion circuit comprises a first DC / DC power conversion module U1 and a second DC / DC power conversion module U2 which are respectively used for providing a 28V control signal and a 12V control signal; the delay signal switching circuit comprises a delay relay U3 and is used for enabling the two output control signals to control the working state of the normally-closed clutch at different stages. The circuit provided by the invention is used for controlling the closing of the normally-closed clutch and decomposing an original working signal into a working signal and a holding signal, so that the long-time power consumption of the circuit is reduced, the electrified working time of the clutch is prolonged, the service life of the clutch is prolonged, and the environment temperature adaptability is improved while the electrified normal separation of the clutch is ensured; the circuit is simple in structure and high in sensitivity, and long-time control over the normally-closed clutch in the follow-up process can be guaranteed.

The application relates to a double-side coupling axial nutational magnetic speed reducer and a working method thereof. The speed reducer comprises a box, an input shaft is arranged at the left end of the box, a rotating disc is arranged at the right side in the box, a nutational disc is arranged in the box and rotates with the input shaft, first and second nutational magnetic gears are arranged at the left and right end faces of the nutational disc respectively, a fixed magnetic gear is arranged at the left end of the box and is magnetically coupled with the first nutational magnetic gear, and a movable magnetic gear is arranged at the left end face of the rotating disc and is magnetically coupled with the second nutational magnetic gear. The double-side coupling axial nutational magnetic speed reducer can realize few-pole difference, has simple structure, large transmission ratio and high transmission efficiency, the axial forces generated by the axial magnetic gears on the two sides can be effectively offset, the service life of bearings is prolonged, the axial force is small, and transmission is stable.

The present application relates to the technical field of punch forming equipment, and discloses an automobile air conditioner clutch coil shell, a stamping device and a stamping process thereof, which comprise a punch main body, a punch head fixedly connected to the top of the inner wall of the punch main body, a slide fixedly connected to the bottom of the inner wall of the punch main body, a fixing mechanism slidingly connected to the top of the slide, a shell arranged in the fixing mechanism, and a limiting mechanism fixedly connected to the middle shaft at the bottom of the inner wall of the punch main body, wherein the outer wall of the shell is clamped with the inner wall of the fixing mechanism, the outer wall of the punch main body is fixedly connected with a collecting groove, and the outer wall of the punch main body close to one end of the collecting groove is fixedly connected with a feeding mechanism. The device can fix the workpiece, avoid the movement of the workpiece during stamping, prevent the stamping position from deviating, and affect the use of the workpiece. The clamping assembly can not only fix the workpiece, but also assist in feeding the workpiece, avoid the workpiece from being processed again due to the delay in feeding, and automatically separate the round piece from the workpiece, thereby reducing the labor of workers.

An electromagnetic clutch is provided which includes—a selector sleeve arranged in a rotationally fixed manner on a first shaft and is adapted to be shifted linearly along the first shaft between an engaged and a disengaged state, a coupling body which is aligned coaxially to the first shaft, a stator which has a coil which serves to shift an armature ring linearly along the first shaft, the armature ring being mounted radially in an axial guide separately from the first shaft and the coupling body, wherein a shifting of the armature ring by the coil is also accompanied by a shifting of the selector sleeve. A method of closing and opening an electromagnetic clutch is also included herein.

Transmission system for a motor vehicle includes a differential drive device configured to distribute a torque to two wheel shafts of an axle, and which includes a coupling device having a coupled position in which the transmission of the torque via the differential drive device is provided and a decoupled position in which the transmission of the torque via the differential drive device is interrupted. The coupling device includes an actuator including a piston guided in axial translation between a retracted position and an extended position; and a thrust bearing which is inserted between the piston and a first coupling part of the coupling device so as to transmit an actuating force of the piston to the first coupling portion and to move the first coupling portion from the uncoupled position to the coupled position during the movement of the piston from the retracted position to the extended position.

The invention relates to an electromagnetic clutch with a shift sleeve (16) having a first toothed section (18) which is rotationally fixed on a first shaft (12) and is linearly adjustable along the first shaft (12) between an engaged and disengaged state, and a first clutch body (20) having a second toothed section (22) which is aligned coaxially with the first shaft (12), wherein the first and / or second toothed section (18, 22) has undercuts (23, 25) in the direction of the engaged state, which are configured such that a torque transmission between the first shaft (12) and the first clutch body (20) generates a force on the shift sleeve (16) in the direction of the engaged state. The invention also relates to a method for closing and opening an electromagnetic clutch (10).

This application discloses a monostable electromagnetic clutch, including a movable part, a magnetic assembly, a fixed disk, and several iron cores. The magnetic assembly is connected to the fixed disk, and the iron cores pass through the magnetic assembly and are connected to the fixed disk. An elastic component is provided on the movable part. Under the action of the electromagnetic force of the magnetic assembly and the elastic force of the elastic component, the movable part can reciprocate on one side of the magnetic assembly, keeping the movable part engaged or disengaged from the iron cores. This application features a flexible and compact structural design, allowing for different combinations depending on the application and available space. It can be used individually or in combination of several basic electromagnetic clutch units. After combination, it can be freely arranged in various installation positions and spaces according to requirements, fully optimizing the use of space.

An electromagnetically switchable positive-lock coupling is shown, with a movable part that is fixedly mounted on a shaft and is linearly displaceable along the shaft between an engagement position and a disengagement position. The positive-lock coupling has at least one stationary part that is aligned coaxially with the shaft and a stator with at least one energizable drive coil (30) for adjusting the movable part along the shaft, wherein in the engagement position there is a positive connection between the movable part and the stationary part, and thus a rotary connection between the shaft and the stationary part. Furthermore, a stationary sensor device (42) is arranged adjacent to the movable part, which comprises at least one Hall sensor (44) and at least one magnet (46) that magnetically encloses the at least one Hall sensor (44).The sensor device (42) is arranged in an axial or radial direction spaced apart from the moving part by a gap and is configured to detect an axial movement of the moving part by means of a change in the field line angle of a magnetic field generated by the magnet (46). Furthermore, a method for determining the position of the moving part is disclosed.

The utility model provides a composite tooth type electromagnetic clutch with a braking function, which comprises a driven fluted disc which is fixedly connected with a power output end and is provided with first meshing teeth, an inner ring which is fixedly connected with a load input end, and a magnet yoke which is fixedly connected with a rack and is provided with second meshing teeth, the movable disc is arranged between the magnet yoke and the driven fluted disc and is provided with third meshing teeth and fourth meshing teeth; a coil is arranged on the magnet yoke; the movable disc and the inner ring are connected through a spring piece, and an elastic piece is arranged between the movable disc and the inner ring. The clutch has dual functions of a clutch and braking. Compared with an existing friction mode, through the meshing mode of the meshing teeth, abrasion is greatly reduced, the service life is prolonged, the torque is large, the transmission torque is large, the structure is simple, installation is convenient, and later maintenance is also convenient.

A moving core has a moving core main member made of soft magnetic materials and a permanent magnet member made of hard magnetic materials. A direction of the magnetic pole of the permanent magnet member matches that of a coil when the coil is positively energized with the forward current, and a stator core is non-existent in a range of movement of the permanent magnet member. Since there is the non-existent portion of the stator core in the range of movement of the permanent magnet member, it is possible to prevent generation of a magnetic flux loop of the magnetic field of the permanent magnet and it is possible to prevent a reduction of the attractive force.

Disclosed is an electromechanical actuator comprising an electric motor, a coupling element and a monostable clutch (23a). The clutch (23a) comprises a central shaft (43), a mobile member (44) and a coil (45), which generates a magnetic field when this coil is powered, so as to cause the member (44) to move relative to the shaft (43). The shaft (43) comprises a core (46), a ring gear (47) and a ring (52), arranged between the core (46) and the ring gear (47). The core (46) and the ring gear (47) are in contact with the member (44) only in a second position, so as to rotate the shaft (43) as a result of grip. Furthermore, the supply to the coil (45) is implemented continuously, only while the member (44) is moving between a first position and the second position, and while the member (44) is being held in the second position.

A rotational motion control device with zero backlash includes a housing having a cylindrical outer surface and an operating cavity. The device further includes a rotor, an actuation plate, and a flexible plate. The rotor includes: a hub housed within the operating cavity; a friction lining; and a disc extending between the friction lining and the hub. A friction lining is positioned between the actuation plate and an outer flange of the housing. The device includes at least one pin abutting a circumference of the actuating plate and rotatably restricting the actuating plate. The flexible plate has sufficient flexibility to allow the actuation plate and the flexible plate secured thereto to move axially away from the housing. A spring biases the actuation plate to sandwich the friction lining between the flange and the actuation plate. An electromagnet within the housing may be energized to pull the actuation plate against the spring bias.

Freewheel clutch (630, 630A, 630B) for use in a power transmission device with hydraulic fluid, wherein the freewheel clutch (630, 630A, 630B) comprises the following: a coupling arrangement (20, 120, 220, 420, 520, 600, 600A, 600B) with an inner ring (36) and an outer ring (22) rotatable with respect to the inner ring (36), wherein the outer ring (22) has several locking structures consisting of inner ratchet teeth (34) and outer ratchet teeth (44); and a ratchet finger arrangement (48, 448, 548, 632) with an active ratchet finger (50) which is for movement between a first position displaced from engagement with the inner ratchet teeth (34) and outer ratchet teeth (44), which defines a free-running mode, and a second position engaged with the inner ratchet teeth (34) and outer ratchet teeth (44), which defines a locked mode by which the inner ring (36) is supported, wherein the inner ring (36) and / or the active locking finger (50) has / have an anti-disengagement feature configured to assist in holding the actuator element in its first position during a rotation of the outer ring (22) relative to the inner ring (36) by counteracting hydraulic forces applied by the hydraulic fluid to the active locking finger (50), characterized in that the anti-disengagement feature counteracts the hydraulic forces applied to the active locking finger (50) by diverting the fluid to flow in a path configured to push the active locking finger (50) into its first position.

The utility model discloses a quick response coil structure of an electromagnetic clutch, which relates to the field of mechanical parts, and comprises a coupling pivot shaft, an anti-collision mechanism and an anti-drop mechanism, a clutch upper shell is arranged outside the coupling pivot shaft, a coil body is arranged at the bottom of the clutch upper shell, and the anti-drop mechanism is arranged on the coil body. A middle coupling shaft is arranged in the middle of the interior of the clutch upper shell, a clutch bottom shell is arranged at the bottom of the middle coupling shaft, the anti-collision mechanism is used for preventing the coil body from impacting the interior of the clutch bottom shell, and the anti-disengaging mechanism is used for preventing the coil body from disengaging from the upper end of the middle coupling shaft. Through cooperative work of the limiting arc piece, the positioning fan piece and the hook part on the inner side of the clutch bottom shell, when the coil body moves to possibly impact the clutch bottom shell, the limiting arc piece annularly blocks, the positioning fan piece assists, and the wedge-shaped structure of the hook part disperses stress, so that part damage caused by impact can be avoided.

The utility model discloses an anti-drop high-precision automobile air conditioner clutch coil housing, which relates to the technical field of air conditioner accessories and comprises a housing body, a connecting seat arranged at the bottom end of the housing body, a connecting component arranged at the lower part of the outer surface of the housing body, a positioning component arranged on the outer surface of the housing body, and a reinforcing component arranged on the upper surface of the housing body. According to the utility model, through the arrangement of the positioning assembly, the installation efficiency between the housing body and the connecting seat can be improved, rapid positioning and butt joint installation can be realized, the installation position of the housing body can be limited after positioning and installation, and shaking can be avoided; the connection efficiency can be improved while positioning connection is achieved through clamping connection between the multiple clamping plates connected with the connecting springs and the clamping grooves, the connection is reinforced from the other side of the shell body through the arrangement of the reinforcing assembly, the installation stability of the shell body is further improved, and the anti-falling effect is achieved.

The utility model relates to the technical field of electromagnetic clutches, and discloses a canine tooth type electromagnetic clutch jaw disc integrated with a torsion damper, the canine tooth type electromagnetic clutch jaw disc comprises a damper disc, one side of the damper disc is sequentially provided with a driving disc hub, a wave-shaped spring steel sheet and a canine tooth type jaw disc, the wave-shaped spring steel sheet is arranged at an opening of the driving disc hub, and the canine tooth type jaw disc is arranged on the other side of the damper disc. Fastening mechanisms are arranged in the inner walls of the shock absorber disc, the driving disc hub, the wave-shaped spring steel sheets and the canine tooth type tooth embedding disc, and after the shock absorber disc, the driving disc hub, the shock absorber springs, the wave-shaped spring steel sheets and the canine tooth type tooth embedding disc assembly is assembled, the shock absorber disc, the driving disc hub, the wave-shaped spring steel sheets and the canine tooth type tooth embedding disc are connected in a fastened mode through the fastening mechanisms. Wherein the wave-shaped spring steel sheet can enable the canine tooth type jaw disc to obtain axial elasticity, the clutch joint softness can be improved, the shock absorber spring is assembled in the shock absorber disc, the driving disc hub and the canine tooth type jaw disc, and torsional vibration and impact borne by a transmission system can be reduced.

A permanent magnet synchronous clutch is mainly composed of a gear hub, a joint sleeve, a synchronous gear ring, a clutch shaft, a bearing, a second-gear driving gear, a first-gear driving gear, a magnet and a gear shifting fork. According to the working principle, in the neutral gear, the gear shifting fork enables the joint sleeve to be located in the middle, at the moment, magnetic lines of force form a closed loop through the magnet, the gear hub and the joint sleeve, and no magnetic force exists between the synchronous gear ring and the magnet; and the joint sleeve is separated from the synchronous gear ring. Gear shifting: the gear shifting fork pushes the joint sleeve to move towards a certain synchronous gear ring along the gear hub, and the magnet on the joint sleeve is close to the synchronous gear ring; firstly, the synchronous teeth and the magnets on the joint sleeve attract each other to achieve synchronization; at the moment, magnetic lines of force form a closed loop through the magnet, the synchronous gear ring, the magnet and the joint sleeve; and then, the joint sleeve continues to move on the gear hub until the synchronous teeth are meshed with the joint sleeve teeth, and one-time gear shifting is completed.

The utility model discloses a three-state electromagnetic clutch switching system which comprises a clutch assembly composed of an electromagnetic part and a connecting part, a second shaft body in slidable tooth connection with the connecting part, a first gear with the output end located on one side of the connecting part and a first shaft body with the output end located on the other side of the connecting part. A shell of the electromagnetic part is fixedly connected with an external gearbox, the electromagnetic part is arranged on the connecting part in a sleeving mode, the connecting part and the electromagnetic part can be coaxially and rotatably connected, and the electromagnetic part drives the connecting part to slide in the length direction of the second shaft body; an elastic piece is embedded in the outer surface of the second shaft body; the second shaft body is sleeved with the connecting part, and a first groove, a second groove and a third groove which are distributed in the length direction of the second shaft body at intervals are formed in the inner surface of the connecting part; the first groove, the second groove and the third groove are all suitable for embedding of the elastic piece. According to the utility model, the technical problem that the electromagnetic clutch system is complex in control and low in efficiency during multi-power-source switching is solved, and the technical effect of fast state switching of the electromagnetic clutch system is achieved.

According to the electromagnetic coil and the electromagnetic clutch speed regulation water pump, the electromagnetic coil comprises an iron core assembly and a coil wound in the iron core assembly, the iron core assembly comprises an iron core inner ring and an iron core outer ring, and the iron core assembly further comprises an annular magnet clamped between the end side of the iron core inner ring and the end side of the iron core outer ring; and a space for winding the coil is formed among the iron core inner ring, the annular magnet and the iron core outer ring. When the electromagnetic coil is not electrified, the output of a magnetic field is formed between the iron core inner ring and the iron core outer ring, and the magnetic field intensity of the whole iron core assembly can be determined by the radial position and the size of the annular magnet between the iron core inner ring and the iron core outer ring.

An axially oriented dual-position linear actuator includes a linearly movable transducer and a fixed stator having a single stator coil. The linear actuator is axially oriented because the stator and transducer are axially offset from each other, and the transducer is axially movable toward and away from the stator between a first end position and a second end position. To move the transducer between the end positions, the stator coil attracts or repels the transducer according to the polarity of the current in the stator coil. The linear actuator can be part of a clutch assembly, such as a dynamically controllable clutch, for controlling the coupling member of the clutch assembly.

The invention discloses an electromagnetic coil heat dissipation system, and relates to the technical field of electromagnetic coils, the electromagnetic coil heat dissipation system comprises an electromagnetic clutch, an electromagnetic coil is installed in the electromagnetic clutch, a rotating shaft is installed below the electromagnetic clutch, an internal and external heat dissipation assembly is arranged in the electromagnetic clutch, and the internal and external heat dissipation assembly comprises a collecting cylinder, an external communicating pipe and an internal branch pipe; when the rotating shaft continuously rotates, the collecting cylinder firstly absorbs air outside the electromagnetic clutch through the outer communicating pipe, and efficient heat management of heating points in the electromagnetic clutch, namely operation heating of an electromagnetic coil is achieved. The radial air outlet design enables air flow to be quickly discharged in the direction aiming at the positions of the electromagnetic coil and the iron core, a heat dissipation path penetrating through the core heating body is formed, and by means of the directional air flow organization mode, cold air can make full contact with the electromagnetic coil and take away heat generated by resistance loss, magnetic hysteresis loss and eddy current loss.

Linear electromechanical actuator (1), comprising a containment structure (2); a pusher (3); a mechanical reduction apparatus (4); drive means (5) operatively connected to said mechanical reduction apparatus (4) to rotate it about said rotation axis (X); a shaft (6) connected to said mechanical reduction apparatus (4) such that a rotation of said mechanical reduction apparatus (4) determines a translation of the shaft (6) along said rotation axis (X); an active anti-rotation mechanism; the mechanical reduction apparatus (4) comprises a nut (8) and a longitudinal pushing element independent of each other and rotatable about said rotation axis (X) under the action of said drive means (5); said longitudinal pushing element (9) being fitted into said nut (8); coupling means (10, 11, 15, 16) configured to mechanically couple said nut (8) and said longitudinal pushing element (9) with said shaft (6), such that a rotation of said nut (8) and / or of said longitudinal pushing element (9) determines a translation of said shaft (6) along said rotation axis (X); said coupling means (10, 11, 15) comprising: an intermediate coupling stage (10) interposed between the nut (8) and the longitudinal pushing element (9), said shaft (6) being at least partially fitted into said intermediate coupling stage and into said longitudinal pushing element (9).

The present disclosure is directed to electric vehicles and electric powertrains for such electric vehicles. The electric powertrain in configured to include an electric motor and disconnectable differential assembly arranged for transmitting the motive power generated by the electric motor to a pair of ground-engaging wheels. The disconnectable differential assembly includes a power transfer mechanism driven by the electric motor, a differential mechanism interconnected to the pair of ground-engaging wheels, and a power-operated disconnect mechanism for selectively coupling and uncoupling the power transfer mechanism and the differential mechanism.

A disconnect system (32) for selectively engaging and disengaging one or more shafts of a power train unit. The disconnect system includes a plurality of cam members (40, 42) and an electromagnetic coil (36). At least one cam member rotates at the same speed as an input shaft. At least one cam member rotates at variable speeds. In operation, the electromagnetic coil is energized by rotation of the input shaft (46) for selectively activating a clutch (38) to engage one or more of the cams (40, 42) to connect and disconnect one or more output shafts (48).

The utility model discloses an electromagnetic clutch and a walking mechanism, the electromagnetic clutch comprises a walking motor, a push-pull type electromagnet, a driving bevel gear, a driven bevel gear and a spline housing, the spline housing is connected to the lower side of the push-pull type electromagnet, and an output shaft of the walking motor penetrates through the push-pull type electromagnet and then is connected with a spline gear in meshed connection with the spline housing; the upper end face of the driving bevel gear is connected with a spline shaft connected with the spline sleeve in a matched mode, one side of the driven bevel gear is connected with a connecting shaft, and the other side of the driven bevel gear is connected with the driving bevel gear in a meshed mode. The walking trolley comprises an underframe, front wheels and rear wheels, the underframe is connected to one end of the folding frame, the front wheels and the rear wheels are sequentially and rotatably connected to the lower side of the underframe, the walking motor is mounted on the upper side of the underframe, and the connecting shaft is connected to one end of each front wheel. The design is simple in structure, high in stability and long in service life.