72results about "Coupling-brake combination" patented technology

[Problem] A design is provided that is capable of suppressing the rattling of an input element. [Solution to the problem] A leaf spring 6 has: two held sections 43, which are arranged on both sides of an input-side engagement section 14 in respect of a second direction perpendicular to a first direction, which is a direction of movement of a pressing surface 33, which moves away from or towards a pressed surface 7 and a central axis of an input element 3, and are held elastically between the input-side engagement section 14 and an input-side gripped section 34; and a base section 44, which connects the two held sections 43.

The present invention relates to a clutch-brake unit, in particular for an aircraft, comprising a brake, a clutch and a control unit, which is designed and arranged to actuate the brake and / or the clutch, wherein the control unit has an actuator and a movable control element, wherein the actuator is designed and arranged to move the control element from a neutral position to a first and / or second control position, thereby enabling the brake and / or the clutch to be actuated.

Turbomachine (10) for an aircraft, comprising a compressor (12), an annular combustion chamber (16), a turbine (20), and a tube (52) extending axially inside a shaft (28) and comprising an upstream end (52a) rotationally fixed to an upstream end (28a) of the shaft (28), characterized in that the shaft (28) comprises a downstream end (28b) that is free to rotate relative to a downstream end (52b) of the tube (52) over a predetermined angular stroke (β), and that is connected to this downstream end (52b) of the tube (52) by an automatic brake pad system (54). Abbreviated figure: Figure 1

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.

Proposed is a brake device for a vehicle seat, in which when a button part is pressed, an unlocking protrusion is inserted between braking members and pushes rollers of the braking members, which are positioned on wedge surfaces, to release surfaces, such that an unlocked state is implemented.

The present invention relates to a device for limiting and / or transmitting torque, wherein the device has a damping element (6) which is designed in one piece and which, when the permissible torque is exceeded or when a brake is switched, connects a drive disc (4) of the torque limiter or the brake to the housing or another load-bearing component of the device.

The invention provides a clutch device which can be assembled between a driving source and a driven body and can prevent transmission of impact torque from the driven body to the driving source. A clutch device (1) is provided with a first rotating member (2), a second rotating member (3), a third rotating member (4), an engagement member (5), and a flywheel (6) fixed to the first rotating member (2). When torque is input to the second rotating member (3), torque is transmitted between the second rotating member (3) and the third rotating member (4) while the first rotating member (2), the flywheel (6), the second rotating member (3), the third rotating member (4), and the engagement member (5) are in a stable rotating state in which the first rotating member (2), the flywheel (6), the second rotating member (3), the third rotating member (4), and the engagement member (5) rotate integrally. When the torque acting on the third rotating member (4) increases sharply in the steady rotating state, the flywheel (6) is brought into a torque transmission restriction state in which the torque transmitted between the second rotating member (3) and the third rotating member (4) is reduced or lost on the basis of the inertia force acting on the flywheel (6).

The invention relates to a linear drive comprising a spindle drive (2), the spindle drive parts (4, 5) of which are threadingly engaged, one of the spindle drive parts (4) being mounted for longitudinal movement along a drive axis (10) and having a stroke part (11) for executing a stroke. The drum brake (18) is released when a rotationally driven spindle drive part (5) is rotationally driven and is closed when the stroke part (11) is under external load. The drum brake (18) is provided with a plurality of brake shoes (24) and a brake drum (21) having a brake surface (23) for the brake shoes (24). A release actuating element (26) and a closing actuating element (27) are provided, which actuate the brake shoe (24) in opposite directions.

A reverse-input blocking clutch includes a leaf spring having: two held portions that is arranged on both sides of an input-side engaging portion of an input member with respect to a second direction perpendicular to a first direction which is a direction of movement of a pressing surface of an engaging element moving away from or toward a pressed surface of a pressed member and a center axis of the input member, and elastically held between the input-side engaging portion and an input-side engaged portion of the engaging member; and a base portion that connects the two held portions.

Provided is a clutch unit in which an output-side outer ring member is attached to a base plate without welding. A clutch unit (100) includes an output-side clutch (60) and a housing (11) that accommodates the output-side clutch (60). The output-side clutch (60) includes an output-side outer ring member (62). The output-side outer ring member (62) and the housing (11) have an engagement protrusion (62s) and an engagement groove (11s) that engage with each other to restrict relative rotation therebetween.

The utility model provides a normally closed type double-control clutch brake. The normally-closed double-control clutch brake comprises a left end structure, a middle structure and a right end structure, and the middle structure is located between the left end structure and the right end structure. The middle structure comprises an outer cover, a connecting bearing seat, a second deep groove ball bearing, two sets of mounting bases and a plurality of mounting bolts, a center hole is formed in the outer cover, the connecting bearing seat is arranged in the center hole, and the outer wall of the connecting bearing seat is attached to the inner wall of the center hole; and a bearing hole is formed in the connecting bearing seat. The normally-closed double-control clutch brake is controlled through the independent electromagnetic clutches at the left end and the right end, free switching of synchronous starting and stopping, single-side starting and stopping and asynchronous operation modes of load components on the two sides can be achieved, and the differential control requirement of a complex transmission system is met; and the disadvantage that a traditional single-control structure needs an additional power source is avoided.

There is provided a power closure actuator for powering a movable closure on a vehicle. The power closure actuator comprises: an electric motor having an output; a controller in command of the electric motor; a drivetrain provided between the motor output and an output member of power closure actuator; a brake operable to selectively apply a brake force to the drivetrain; an operator force sensor provided in the drivetrain and configured to detect a force on the output member applied from the closure both due to gravitational force on the closure resulting from vehicle inclination and due to a user-applied force on the closure; and a controller configured to release the brake in response to the operator force sensor detecting a value that corresponds to a force on the closure at or above a predetermined force, the controller configured to disregard the gravitational force so that the predetermined force corresponds only to the user-applied force on the closure.

A steering gear for a vehicle includes a rack I and a steering dynamic one-way stop mechanism. The rack I or the rack rod containing the rack I is connected to the steering dynamic one-way stop mechanism, which can control the rack I to switch between unidirectional and reciprocating motion.

Non-backdriving rotation transmission mechanism comprising an input shaft (4), an output shaft (1), a fixed casing (2) having a cylindrical cavity (20), and provided in said cavity (20) with a cylindrical braking surface (21), at least one braking element (3) connected to the input shaft (4) and to the output shaft (1) and adapted to interact with said braking surface (21), and means for actuating the braking element (3) such that said braking element (3) is movable from a non-braking condition, wherein transmission of the motion from the input shaft (4) to the output shaft (1) is allowed, to a braking condition, wherein transmission of the motion from the output shaft (1) to the input shaft (4) is prevented. The said braking element (3) comprises two brake pads (30) articulated to each other and each having at least one braking contact zone (34) adapted to interact with said braking surface (21), which brake pads (30) are movable from an engagement position, corresponding to said braking condition, wherein the contact zones (34) are remote from each other and are in contact with said braking surface (21), to a free position, corresponding to said non-braking condition, wherein the contact zones (34) are close to each other and are not in contact with said braking surface (21).

Adjustment device (6), in particular for adjusting seats (2), comprising: a) a rotatable drive element (7, 30); b) a rotatable output element (18); c) a first clamping element freewheel (10) which continuously blocks the output element (18) in different positions in both adjustment directions and can be released by means of a release element (70), and d) a second clamping element freewheel (20) which is coupled to the first clamping element freewheel (10) via the release element (70) and which continuously blocks the output element (18) in different positions in both adjustment directions and can be released by means of an actuating element (40), wherein the drive element (7, 30) is biased into a central position by means of two springs (60, 61) acting in opposite directions, and the two springs (60, 61) also bias the actuating element (40) into a central position, wherein a projection (33) of the drive element (7, 30) is arranged between two first end faces of the springs (60, 61) and a projection (42) of the actuating element is arranged between two opposing second end faces of the springs (60, 61), characterized by the fact that the second clamping element freewheel (20) around clamping elements (22, 22') comprises an outer ring (30) which forms a cross-section deviating from the cylindrical contour in order to clamp the clamping elements (22, 22') in opposite directions and the outer ring (30) is coupled to a drive lever via projections (31).

A driven unit helix assembly for a continuously variable transmission including a roller sleeve, a helix, a spring, and a helix sleeve. The roller sleeve is configured to coupled to a movable sheave and axially translate along a post. A plurality of roller assemblies radially extend from the roller sleeve and travel within roller tracks of the helix, such that the roller sleeve and helix define coaxial components coupled an axial sliding engagement. The spring extends from a proximal end coupled to a proximal portion of the helix to a distal end configured to contact at least a portion of the distal portion of the movable sheave, thereby urging the movable sheave in the distal direction. The helix sleeve extends circumferentially around the helix and is configured to retain a fluid in the helix assembly.

The invention provides a friction type power takeoff, relates to the field of power takeoffs, and adopts the technical scheme that a clutch assembly is arranged between a transmission ring and an output shaft and comprises a transmission sheet group, a transmission shaft and a transmission shaft, the driving disc is arranged on the output shaft in a sleeving mode, the driving disc can move in the axial direction of the output shaft, the driving disc can push the steel sheet and the friction sheet to move in the axial direction and press each other, and a driven slope is arranged on the end face, away from the steel sheet, of the driving disc; the multiple driving blocks are arranged on the output shaft in the circumferential direction and can move in the radial direction of the output shaft, a driving inclined face is arranged on the side, close to the driving disc, of each driving block, and the driving inclined faces can slide relative to the driven inclined faces; the driving block can drive the driving disc to axially move, and the driving disc pushes the steel sheet and the friction sheet to axially move until the steel sheet and the friction sheet are tightly pressed. The axial space occupation of the power takeoff can be reduced, and the power takeoff can be conveniently installed and arranged in a whole vehicle.

The clutch device comprises a driving wheel, a driven wheel, a brake disc and a brake block, one end of the driving wheel is provided with a linkage groove and a plug pin, one end of the driven wheel is provided with a linkage part, and the linkage part is provided with an annular groove; when the driving wheel is rotated, the inner side wall, in the circumferential direction, of the linkage groove pushes the brake block to move away from the brake disc in the radial direction, the plug pin moves in the circumferential direction till the plug pin abuts against one inner side wall, in the circumferential direction, of the annular groove, the plug pin pushes the linkage part to rotate, the linkage part is in linkage with the driven wheel to rotate, and the brake block does not make contact with the inner side wall of the brake disc. When the driven wheel is rotated, the linkage part rotates and pushes the brake block to move towards the brake disc in the radial direction, the annular groove moves relative to the plug pin in the circumferential direction till the plug pin abuts against the other inner side wall of the annular groove in the circumferential direction, at the moment, the brake block makes friction contact with the inner side wall of the brake disc, and the driven wheel stops rotating. The mechanical one-way brake structure design is achieved, and braking can still be kept when an electronic brake fails.

[Problem] A coupling device is provided which is installed between a drive source and a driven body and is able to prevent the transmission of impulse torque from the driven body to the drive source. [Solution to the problem] A coupling device 1 includes a first rotating element 2, a second rotating element 3, a third rotating element 4, a meshing element 5, and a flywheel 6 attached to the first rotating element 2. When torque is introduced into the second rotating element 3, the coupling device 1 enters a stable rotational state in which torque is transmitted between the second rotating element 3 and the third rotating element 4, while the first rotating element 2 and the flywheel 6 rotate integrally with the second rotating element 3, the third rotating element 4, and the meshing element 5.If the torque acting on the third rotating element 4 increases rapidly in the stable rotation state, the coupling device 1 enters a torque transmission limitation state in which torque transmitted between the second rotating element 3 and the third rotating element 4 is reduced or lost.

A configuration of an electric motor with a reverse input cut-off clutch that is easy to miniaturize. An output rotary shaft (2) is configured by connecting a first rotary shaft (22) and a second rotary shaft (23) that are coaxially arranged with each other using a reverse input cut-off clutch (20). The second rotary shaft (23) is supported on the axial one side of the end portion located on the opposite side of the first rotary shaft (22) across a gear portion (30) in the axial direction so as to be rotatable relative to a fixed portion (34) using a bearing device (3). The reverse input cut-off clutch 20 has a function of transmitting torque input to the first rotary shaft (22) to the second rotary shaft (23) if torque is input to the first rotary shaft (22), and completely cutting off torque input to the second rotary shaft (23) in the reverse direction so as not to be transmitted to the first rotary shaft (22), or transmitting a part of the torque to the first rotary shaft (22) and cutting off the remaining part if torque is input to the second rotary shaft (23) in the reverse direction.

A reverse-input blocking clutch includes a housing, an input shaft, an output shaft, a pair of engaging elements, a first bearing mechanism provided between the input shaft and the housing, and a second bearing mechanism provided between the output shaft and the housing. At least one of the input shaft, the output shaft, and the housing has a raceway surface which contacts at least one rolling element of the first bearing mechanism and the second bearing mechanism.

A clutch includes a clutch fluid chamber with a movable clutch piston configured to selectively engage a clutch pack to connect an input drive portion and an output portion. A brake reaction plate is configured for selective frictional braking of the output portion. A brake fluid chamber contains a brake piston configured to selectively move the brake reaction plate from a disabled position to an enabled position. In a first state, the clutch pack is disengaged and the brake reaction plate is in the disabled position. In a second state, the clutch pack is engaged and the brake reaction plate is in the enabled position, without frictional braking of the output portion of the clutch being applied. In a third state, the clutch pack is disengaged and the brake reaction plate is in the enabled position such that frictional braking of the output portion is applied.

Drive system for a load, wherein the drive system comprises a shaft part (4), an electric motor and a braking device that can be intermediately arranged between the electric motor and the load, wherein the electric motor has a rotor shaft and a cage part (23), wherein the brake device has a brake drum (3) which has a recess, wherein the braking device is designed as a rotation-direction-independent backstop, so that the braking device is activated, that is, the rotor shaft is slowed down when a torque generated by the electric motor is less than a torque transmitted from the load to the electric motor. and the torque generated by the electric motor is passed through the braking device to the load without loss, if the torque generated by the electric motor is greater than the torque transmitted from the load to the electric motor, wherein the distance between a first and second inclined surface (28) of the respective recess, determined on a given radial distance, decreases with increasing radial distance, characterized by the fact that the cage part (23) has a bushing section (24) in which the rotor shaft of the electric motor is received and connected to the bushing section (24) by means of a keyway connection, wherein the bushing section (24) of the cage part (23) is radially spaced from a ring section of the cage part (23), wherein the bushing section (24) and the ring section are connected via a connecting section of the cage part (23), wherein the recesses (29) are arranged in the ring section of the cage part (23), wherein a bearing (22) can be arranged in the radial spacing area between radial section and bushing section (24) for supporting the shaft part (4), wherein an outer ring of another bearing (26) of the brake drum (3) is received and the inner ring of this further bearing (26) of the shaft part (4) is received.

A controller of a winch control device performs: a first control for, when a winding operation is applied in a free mode, switching the mode of a brake device from the free mode to a coupled mode; a second control for, when a winch operating member is returned to a neutral position, switching the mode from the coupled mode to the free mode in a state where a command for adjusting the secondary pressure of a brake force regulator to a set pressure, which is larger than an operation amount corresponding pressure corresponding to the operation amount of a brake operation, is input into the brake force regulator; and a third control for inputting into the brake force regulator a command for adjusting the secondary pressure of the brake force regulator to the operation amount corresponding pressure.

Prevents slight downward movement of the seat. [Solution] The locking mechanism 12 of the clutch unit comprises a first locking element 27 provided on the output member 22 and a second locking element 28 that engages with the first locking element 27. As the input member rotates, the locking mechanism 12 causes the second locking element 28 to rotate about the second rotation axis RA2, thereby disengaging from the first locking element 27.

A clutch for preventing backdrive includes a housing, a cover portion located at one end portion of the housing, an external shaft, at least a portion of which is located in the housing, and another end portion of which passes through the housing, a plurality of lockers located inside the housing and surrounding the first end portion of the external shaft, an input shaft, a first end portion of which is inserted into openings of the plurality of lockers and a second end portion of which is configured to pass through the cover portion, and a brake unit configured to be selectively engaged to the lockers to restrict rotations of the lockers. The external shaft is restricted by the lockers so that the external shaft and the lockers are rotated in a rotation direction of the input shaft, and movements of the lockers are restricted by the brake unit when the external shaft is rotated.

A power take-off includes bell housing disposed about an axis and configured for coupling to a housing of an engine or other driving device at a first axial end and to a housing of a driven device at a second axial end. The bell housing defines an air inlet port and an air outlet port between the first and second axial ends. A clutch is disposed within the bell housing and configured to transfer torque from an input member coupled to the engine to an output member coupled to the driven device. A fan is configured for rotation with the input member to draw air into the bell housing through the air inlet port, move air through the bell housing from the air inlet port to the air outlet port in a substantially radial direction across the clutch and exhaust air from the bell housing through the air outlet port.

Dynamo-electric brake with: a universal self-centered system comprising an outer foundation (2) and a medial foundation (1) situated in a plane, wherein the outer foundation (2) encompasses the medial foundation (1), on each foundation (1, 2) three or more stars (14, 15, 16; 17, 18, 19) are rotatably mounted, and a closed chain (13) sequentially connects the stars (14, 15, 16; 17, 18, 19) on the outer foundation (2) and the medial foundation (1), and an electromagnet or electric motor, characterized in that the electromagnet or electric motor generates a torque between the foundations (1, 2) of the universal self-centering system, wherein the universal self-centered system includes gears (20, 21, 22) which are mounted on common axes with the stars (17, 18, 19) of one of the foundations (1, 2) and have toothed engagement with an output gear (23) on an output shaft (3) which is connected to a shaft of an object to be decelerated (12) and to the outer foundation (2).