261results about "Self acting brakes" patented technology

The brake assembly includes a housing, a rotor disc. The rotor disc includes at least one internal cavity. The at least one internal cavity includes a pawl and a thermal fuse. In use, the thermal fuse is configured to maintain the position of the pawl in the at least one internal cavity when a temperature is below a predetermined threshold, and wherein the thermal fuse is configured to melt when a predetermined threshold of temperature is reached during braking to release the pawl out of the at least one internal cavity towards the housing. The housing includes at least one recess configured to receive the pawl.

The utility model relates to the field of fans, in particular to an axial flow fan with failure stalling protection, which is characterized in that a middle shell is supported in a fan frame, and a stator assembly is arranged in the middle shell; the rotor assembly is supported in the stator assembly; the limiting mechanism comprises a limiting wheel fixedly connected to the rotating shaft, and at least one limiting tooth is arranged on the limiting wheel; the locking claw is hinged to the middle shell, the far end of the locking claw is provided with a limiting claw tip, and the locking claw is connected with the middle shell through a detachable connecting structure. When the service life of the draught fan reaches the limit, the draught fan can stop running in time, electric leakage of the draught fan caused by abnormal running is avoided, shutdown operation of a system is facilitated, and adverse effects on equipment caused by running of the equipment using the draught fan under abnormal conditions are avoided.

[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 differential, which includes a planetary gear and a planetary gear shaft, wherein the planetary gear is capable of rotating relative to the planetary gear shaft, and further includes a speed limiting mechanism arranged on the planetary gear, the speed limiting mechanism including an elastic element and a slider, when the rotational speed of the planetary gear is lower than a rotational speed threshold, the slider slides on the planetary gear shaft with a first contact point on a first surface under the action of both a first elastic force exerted by the elastic element and a first centrifugal force, and when the rotational speed of the planetary gear is greater than the rotational speed threshold, the slider slides on the planetary gear shaft with a second contact point on the first surface under the action of both a second elastic force of the elastic element and a second centrifugal force, wherein the second contact point is closer to the edge of the first surface of the slider than the first contact point, so that the friction force when the slider contacts the planetary gear shaft at the second contact point is greater than the friction force when the slider contacts the planetary gear shaft at the first contact point.

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 invention relates to a hydraulic brake, clutch or clutch-brake combination for a work machine, which is designed to be switchable by means of a hydraulic medium delivered by a hydraulic pump (18), with a rotor disk (4) arranged on a shaft in a rotationally fixed but axially displaceable manner and a counterpart (15) cooperating therewith, wherein the counterpart (15) is mounted axially displaceably in relation to the rotor disk (4), with a mechanical force transmitter (17) designed to apply force to the counterpart (15) in the axial direction, and with a hydraulic piston (13) provided by a cylinder-piston arrangement (12), which is designed to be movable in the axial direction and is designed to act on the counterpart (15) in the event of pressure being applied with hydraulic medium delivered by the hydraulic pump (18) in a manner counter to the force applied by the force transmitter (17), characterized in thatthat the hydraulic pump (18) fluidically interacts with a reservoir (20) accommodating hydraulic fluid, wherein the hydraulic pump (18) and the reservoir (20) are designed for intended use exclusively with the cylinder-piston arrangement (12), and that a bypass line (24) is provided which fluidically bypasses the hydraulic pump (18) and fluidically connects the reservoir (20) to the cylinder-piston arrangement (12), wherein an electrically switchable valve (25) is integrated into the bypass line (24) and is designed to open the bypass line (24) in the event of a de-energized position of the valve (25).

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 electromagnetic brake with a housing body and an armature disk, wherein the armature disk is guided axially via a groove-lug connection in the housing body, and wherein at least one guide groove and at least one associated guide lug are provided, wherein the respective guide groove is preferably arranged in the housing body.

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.

A gearbox assembly including a gear assembly, an input shaft, an output shaft, and a gear brake system. The input shaft is coupled to the gear assembly. The output shaft is drivingly coupled to the input shaft through the gear assembly. The gear brake system is disposed within the gear assembly, and includes one or more brake devices. The gear brake system actuates the one or more brake devices to brake the gear assembly during a reverse torque condition of the gearbox assembly.

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 support device, in particular for a vehicle panel, comprising: a housing which can be connected between the vehicle panel and a vehicle body and which comprises at least a first housing part and a second housing part, the first housing part and the second housing part being movable relative to one another in a telescopically guided manner; a spindle mechanism which is coupled to the housing, the spindle mechanism comprising a spindle rod and a spindle nut which is in threaded engagement with the spindle rod, and one of the spindle rod and spindle nut being arranged in the housing so as to be rotatable about a spindle axis and the other of the spindle rod and spindle nut being arranged in the housing so as to be rotationally fixed; and a first brake device (16) which is coupled to one of the spindle rod and spindle nut in order to brake the rotation of said one of the spindle rod and spindle nut, the first brake device (16) comprising a first centrifugal element (24) and a second centrifugal element (25) which are rotatable about a central axis of rotation (D), and the first brake device (16) being able to be activated by centrifugal forces by being rotated relative to the housing about the central axis of rotation (D). The aim of the invention is to provide a support device, in particular for a vehicle panel, which in particular reliably and securely brakes or prevents an undesired closing movement of the vehicle panel in any position of the vehicle panel and can be assembled in a time-saving manner. This is achieved in that the first centrifugal element (24) and the second centrifugal element (25) consist at least in part of a ferromagnetic material.

The humanoid robot joint module with the overload protection structure comprises a fixed body and a rotating cover, a connecting boss is arranged on the fixed body, an assembling cavity is formed in the connecting position of the connecting boss and the fixed body, a transmission assembly is arranged in the assembling cavity, a brake assembly and a brake driver are arranged on the connecting boss, and the rotating cover is arranged on the rotating cover. The output end of the brake drive is connected with the brake assembly, the brake drive is further connected with the transmission assembly, and the rotating cover is arranged on the connecting boss in a sleeving mode and connected with the connecting boss through the fixing assembly. According to the principle that helical gears are subjected to axial force when being meshed with each other, a magnetic suspension bearing is adopted to connect a rotating shaft with a fixed part, the state of the rotating shaft is monitored through a detection device, and when the output end of the joint module is overloaded, a transmission helical gear is clamped and does not rotate any more, and a driving gear drives the rotating shaft to axially move along a mounting hole; the detection device can control the brake electromagnet to act to brake the rotating cover, meanwhile, the power source stops outputting, and overload damage is prevented.

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.

The invention relates to an assembly (1) comprising a reduction gear (10) for a wheel motor, and a motor (20), the reduction gear (10) comprising a reduction gear housing (12), an output hub (16), an input member (24) and a reduction stage (30A, 30B) rotationally coupling the input member (32A) and the output hub (16) by modifying the torque and speed ratio between the latter, the input member and the output hub being rotatable about an axial direction (X), the motor (20) comprising a motor housing (22) and a drive shaft (24) comprising a primary shaft (242) defining an internal cavity (243), and an actuator (244) slidably mounted in the internal cavity (243) and rotationally secured to the primary shaft (242), the actuator (244) being movable between a first position in which the actuator (244) is rotationally coupled with the input member (32A), and a second position in which the actuator (244) is free to rotate relative to the reduction gear (10).

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.