192results about "Self acting brakes" 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 invention belongs to the technical field of hoisting equipment, particularly adapts to high-altitude and low-altitude multi-scene hoisting operation and high-altitude safety protection, and particularly discloses an ultra-high molecular weight polyethylene fiber rope self-locking device which comprises a shell, a fixing handle is arranged on the shell, and a main ratchet wheel rotating disc is rotationally installed in the shell; a first pawl is arranged in the shell and matched with the main ratchet wheel rotating disc, and an auxiliary ratchet wheel rotating disc is further arranged in the shell. Through cooperation of the main ratchet wheel rotating disc and the auxiliary ratchet wheel rotating disc, the fiber rope forms a curved track, the number of locking stress points of the fiber rope is increased to two, and the local stress load of the fiber rope is dispersed; the problems that the ultra-high molecular weight polyethylene fiber rope is locally prone to friction damage and the structure is weakened during high-low-altitude operation are solved, meanwhile, the locking failure risk caused by extreme dynamic impact is reduced, and the complex and harsh safety protection requirement of the high-low-altitude operation can be stably met.

The invention relates to an anti-lock device (1) for a wheel, which is arranged in a hydraulic pressure circuit between a master cylinder (2) and at least one brake caliper (3) of the wheel, in particular for an aircraft. According to the invention, the device comprises: a centrifugal element (4) attached to a rim (5) of the wheel and movable from a retracted position when the wheel is rotated at a speed below a threshold rotational speed to a deployed position due to centrifugal force when the wheel is rotated at a speed beyond the threshold rotational speed; a pressure regulating system (6) comprising a hydraulic inlet (6a) connected to the master cylinder (2) and a hydraulic outlet (6b) connected to the hydraulic inlet of the brake caliper (3), the pressure regulating system (6) is movable between a hydraulic circuit closed position when the centrifugal element (4) is in the retracted position and a hydraulic circuit open position driven by the centrifugal element (4) in the deployed position.

A brake assembly (200, 1100) for a work machine (100) includes a main brake housing (202), a disc stack (204), a brake housing (214) coupled with the main brake housing (202), and a piston (216) to compress the disc stack (204). At least one of the main brake housing (202) and the piston (216) define at least two spring pockets (205). The at least two spring pockets (205) are circumferentially spaced apart from each other. The brake assembly (200, 1100) also includes at least two spring assemblies (218) disposed between the main brake housing (202) and the piston (216). The at least two spring assemblies (218) are adapted to engage the piston (216) with the disc stack (204) to apply brakes via the brake assembly (200, 1100). Each spring pocket (205) of the at least two spring pockets (205) receives a corresponding spring assembly (218) of the at least two spring assemblies (218). Each of the at least two spring assemblies (218) includes at least one Belleville spring (232).

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.

The present invention discloses a vehicle, a braking system, a brake, and a method for monitoring the braking condition. In the brake, the flange rotor is connected to the motor shaft and additionally to the stator via a rolling connection, so that the flange rotor can rotate together with the shaft of the brake motor relative to the stator. A slotted disk is arranged on the stator; an armature is connected to the flange rotor via a spring element, so that the armature can move back and forth between the flange rotor and the slotted disk along the axis of the flange rotor; a permanent magnet generates a first magnetic force on the armature. When the coil is de-energized, the first magnetic force opposes the restoring force, causing the armature to move towards the slotted disk and engage with it. When the coil is energized, it generates a second magnetic force on the armature.The combined force of the second magnetic force and the restoring force opposes the first magnetic force, causing the armature to move towards the flange rotor and detach from the slotted disc. This locks and unlocks the corresponding brake motor. The brake is integrated into the motor, reducing the size, noise, and energy loss of the braking system, as well as manufacturing and testing difficulties.

An electric motor having an electromagnetically actuable brake, wherein the brake is releasable by means of a pivotably arranged manual release lever (7), in particular lever part, in particular in the event of failure of the voltage supply, current supply failure or if the brake is not being energized, wherein a securing device for limiting the pivoting movement of the manual release lever (7) is arranged on the electric motor, wherein the securing device has at least one holding part (3), a rod part (4) and a joint, wherein the holding part (3) is fastened to the electric motor, wherein the rod part (4) is arranged rotatably by means of a joint formed between the rod part (4) and the holding part (3), wherein the limiting of the pivoting movement of the manual release lever (7) is dependent on the rotational position of the rod part (4).

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

A braking system (3), in particular emergency braking system, in a drive unit, which drive unit includes at least one motor (8) and at least one unit (6) driven by the motor (8). The braking system has: a plurality of controllable brakes (16a-16b), which are arranged and designed to act on the drive unit; and a controller (12), which is designed to preselect and accordingly pilot-control a number of brakes (16a-16b) from amongst said plurality of brakes (16a-16b) depending on a state or load situation of the drive unit, so that, when the braking system (3) is activated, the drive unit can be acted on only by way of said preselected number of brakes (16a-16b).

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.

An actuator for coupling to a rotatable object, the actuator being configured to be primarily activated by Euler forces arising from rotational acceleration of the rotatable object about an object pivot point of the rotatable object, the actuator comprising a first coupling arrangement and second coupling arrangement, each coupling arrangement being configured to be pivotally coupled to the rotatable object by a respective coupling arrangement pivot point, wherein each coupling arrangement comprises a first outer pivot point and a second outer pivot point radially offset from the coupling arrangement pivot point, wherein the respective first outer pivot points are operatively coupled by a first body, and the respective second outer pivot points are operatively coupled by a second body, such that a center of mass of each body is radially offset from the object pivot point when the actuator is coupled to the rotatable object.

The auxiliary traction device comprises a traction rope, a balancing weight, a vertical guide rail, a speed reduction assembly and a switch assembly, the vertical guide rail is arranged below the end of a traveling guide rail of the bridge crane, the balancing weight is in sliding connection with the vertical guide rail, a first guide wheel is arranged above the vertical guide rail, and a second guide wheel is arranged below the first guide wheel. One end of the traction rope is fixedly connected with the balancing weight, and the other end of the traction rope is detachably connected with a bridge frame of the bridge crane; the speed reduction assembly is fixedly arranged on the balancing weight and makes contact with the vertical guide rail to be used for controlling the descending speed of the balancing weight. The switch assembly is used for controlling the speed reduction assembly to be switched between the braking state and the braking releasing state. According to the invention, through a pure mechanical counterweight traction mode, controllable moving capability is provided for the bridge crane which is powered off.

Aspects of the present disclosure relate to a skewed roller impeller cage including a metallic ring with radially arranged slots in which rollers are positioned. Impeller shaped channels are defined around a top side of the cage to force fluid to circulate from an outer diameter of the cage to an inner diameter of the cage and vice versa. Cutouts defined at the inner diameter of the cage allow fluid to circulate from the top side of the cage to the bottom side due to centrifugal forces moving the fluid from the inner diameter back to the outer diameter of the cage to allow for continuous circulation of the fluid about the cage.

The invention relates to an assembly having a wheel and a shaft carrying the wheel, the assembly further comprising a locking device (1) that comprises a male member (3) and a female member (2), wherein one from among the male member and the female member is connected to the wheel and the other from among the male member and the female member is connected to the shaft, and wherein the female member further comprises: • - a housing (4) extending along a given axis so as to have two ends, one of which is open; • - a positioning grid (21) arranged in the housing; • - and a plurality of pins extending into the housing through one of the holes in the positioning grid, wherein the male member comprises at least one finger capable of bearing on at least one of the pins of the female member. The invention further relates to an associated vehicle.

Proposed is a brake assembly for braking a shaft, wherein: the brake assembly comprises • - a magnet body (9), • - an armature disk (2) and • - an electrically energizable coil winding (8); the coil winding (8) is received in the magnet body (9); the armature disk (2) is rotationally coupled to the magnet body (9) and is movable in the axial direction; a permanent magnet (10) is arranged in a recess of the magnet body (9); bolts (3) which are mutually spaced in the circumferential direction project in the axial direction through respective recesses in the magnet body (9); and the bolts (3) are connected at one end to the armature disk (2) and at the other end to a magnetic return disk (4).

A cable sleeve for use with a safety cable of a fall protection system. The cable sleeve has a braking system that includes a constant-contact wheel, a rotor that is connected to the constant-contact wheel, a cam plate, and a braking shoe. The rotor may have a permanent magnet and a magnetically susceptible item that is held in a disengaged position by the permanent magnet. Rotation of the constant-contact wheel can overcome the magnetic force and cause the item to move so as to engage with the cam plate and actuate braking by the braking shoe.

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 brake includes a rotor rotatably coupled to a rotating body for rotation about a rotational axis. A brake plate and an armature are disposed on opposite sides of the rotor. A spring and an electromagnet urge the armature in opposite directions into and out of engagement with the rotor to move the rotor into and out of engagement with the brake plate and engage and disengage the brake. The brake plate and electromagnet each define a central bore configured to receive the rotating body. The brake is characterized by a target supported on a radially extending face of the rotating body or the rotor and a sensor aligned with the target through the central bore of the brake plate or the electromagnet. The sensor generates, responsive to the target, position signals indicative of a rotational position of the rotor and rotating body.

An aspect of the present invention provides a speed control device (1, 201, 301, 401, 501) including: an axle (2) supporting a wheel (103); a tubular boss portion (41) rotatably supporting the axle (2); lubricant applied at least between an outer circumferential surface (2a) of the axle (2) and an inner circumferential surface (41b) of the boss portion (41); and a brake mechanism (20, 220, 420, 520) integrated with the boss portion (41), the brake mechanism (20, 220, 420, 520) being configured to control rotation of the wheel (103) depending on the rotation speed of the wheel (103). Recesses (43a, 43b) are formed in at least one of (i) a supported outer circumferential surface (2b) of the outer circumferential surface (2a) of the axle (2), the supported outer circumferential surface (2b) being supported by the boss portion (41), or (ii) an inner circumferential surface (41b) of the boss portion (41).

The application discloses a pulling device, which comprises a pulling assembly, a positioning assembly and a stopping assembly. The pulling assembly comprises a rotating drum, which rotates along with the pulling of a hose and moves to a first direction. The positioning assembly is arranged in the rotating drum and is fixed in the axial direction and fixed with the rotating drum in the circumferential direction of the rotating drum. The positioning assembly is provided with a first sliding groove, and the first sliding groove is provided with a positioning groove. The stopping assembly is arranged correspondingly with the positioning assembly. The stopping assembly comprises a first sliding cavity and a telescopic assembly. The telescopic assembly is slidably arranged in the first sliding cavity. The telescopic assembly is provided with a stopping rod, which is slidably arranged in the first sliding groove and has a tendency to move to the side wall where the positioning groove is located. The extension line of the positioning groove in the direction perpendicular to the axis of the rotating drum is located on the path of the sliding of the stopping rod in the first direction. According to the application, after the user pulls the hose, the hose is not reset due to the clamping and limiting of the stopping rod, and the user does not need to pull the hose and keep it in the target water outlet position.

A motorized wheel assembly is provided herein. The motorized wheel assembly comprises an in-hub motor comprising a stator and a rotor. A shaft is connected to the stator of the in-hub motor. The motorized wheel assembly further comprises a hub, attached to and configured to rotate with the rotor. The hub is disposed about the shaft and the in-hub brake system. The wheel assembly further includes a tire disposed about the hub. The motorized wheel assembly further comprise an in-hub brake system positioned about the shaft. The in-hub brake system comprises a biasing system, an actuator plate, a brake plate, and a brake pad system. The biasing system is configured to bias the actuator plate to the engaged position to cause the brake pad system to apply a force to the brake plate to prevent rotation of the hub and the tire.

A disc brake is provided, comprising: a brake disc (13) disposed between a fixed disc (4) and an armature (5) of an electromagnet; a fastening bolt (14) for securing the electromagnet passes through a yoke (6) of the electromagnet, the armature, and the fixed disc in that order; a positioning sleeve (7) fitted onto the fastening bolt, one end of the positioning sleeve abutting the yoke and the other end abutting the fixed disc; the armature slidably fitted into the positioning sleeve; a ring-shaped upper convex edge formed on the disc surface of the fixed disc along the axial hole; a core hole of a floating disc (2) fitted onto the upper convex edge; an engagement opening for engagement with the positioning sleeve opened in the floating disc, the engagement opening and the positioning sleeve fitted together with a clearance maintained therebetween; one end of a tensile pressure sensor (3) axially attached to the fixed disc and the other end to the floating disc; the range of the clearance between the engagement opening and the positioning sleeve being within the maximum allowable deformation limit of the tensile pressure sensor. This design simplifies the structure of the disc brake, effectively reducing manufacturing costs and improving the market competitiveness of the product.

A solar tracker centrifugal locking apparatus includes a centrifugal locking device and first and second cable members. Each of the first and second cable members is connected to the centrifugal locking device and configured to connect to a torque tube. The centrifugal locking device is configured such that when the torque tube rotates in a first rotational direction at a rotational velocity below a first direction torque tube rotational velocity threshold, the centrifugal locking device is in an unlocked state to release the first cable member and receive the second cable member. And the centrifugal locking device is configured such that when the torque tube rotates in the first rotational direction at a rotational velocity at or above the first direction torque tube rotational velocity threshold, the centrifugal locking device is in a locked state to prevent further release of the first cable member.

A furniture drive includes an electric drive motor and a brake device. The drive motor has an output shaft which projects beyond a motor housing and the brake device has at least one brake element and one force accumulator. The force accumulator permanently loads a friction surface of the at least one brake element with a brake force. The force accumulator and the brake element are configured in one piece. Coefficients of static and sliding friction between the friction surface of the brake element and the output shaft differ by a factor of at least 1.3. An EMF brake is provided for the drive motor.

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.

An external drum brake anti-falling device includes a carrier having an accommodating chamber and a main shaft crossingly arranged in the accommodating chamber for supporting a rotating drum to autorotate, wherein the rotating drum has a life belt coiled thereon, a brake unit arranged at an end thereof, and a drum brake module, which includes a base, mounted in the accommodating chamber, and a passive ring, mounted on the base. The base has a through hole axially and penetratingly arranged thereon and a slit communicating an inside and outside of said through hole. The wall surface of the through hole is a first ring surface. An outer diameter of the passive ring is a second ring surface. The passive ring has internally ratchet teeth arranged therein. when the life belt drives the brake unit to be engaged with the ratchet teeth, thereby buffering the rotating drum and the life belt.