53 results about "Arresting gear" patented technology

The invention concerns a Brake carrier (10) for disc brake arrangement (11), the disc brake arrangement (11) having brake pads (24) that are displaceable relative to a brake disc (100), wherein the brake carrier (10) is configured to support the brake pads (24) during their displacement; wherein the brake carrier (10) comprises at least a first portion (14) that is arrangeable on a first side (13) of the brake disc (100), a second portion (16) that that is arrangeable on a second side (15) of the brake disc (100) and two connecting portions (18, 20) each connecting the first and second portions (14, 16); wherein at least one of the connecting portions (18, 20) comprises an air channel (12) having a first end (34) that is arranged so as to face towards the brake disc (100). Also disclosed is a disc brake arrangement (11) comprising such a brake carrier (10).

A wing (3) for an aircraft (1) including a fixed wing (5), a foldable wing tip portion (9) mounted to the fixed wing (5) via a hinge (11) in a manner rotatable about a hinge axis (13) between an extended position and a folded position, an actuation device (24) for actuating the foldable wing tip portion (9) for movement between the extended position and the folded position, and an arresting device (37) for arresting the foldable wing tip portion (9) in the extended position and / or in the folded position. The arresting device (37) includes a clutch device (39) configured for selectively holding the foldable wing tip portion (9) in a fixed position relative to the fixed wing (7) and releasing the foldable wing tip portion (9) for movement relative to the fixed wing (7) about the hinge axis (13).

A brake apparatus may include a rotary member, a friction member configured to apply a frictional force to the rotary member, an electric actuator configured to move the friction member, a clamping force detection member configured to detect a clamping force in accordance with contact between the rotary member and the friction member, and a controller configured to control an operation of the electric actuator, in which the controller determines a reference position on the basis of a position of the friction member at a time point at which the rotary member and the friction member are separated, determines a clearance between the rotary member and the friction member on the basis of the detected clamping force on the basis of the reference position, and control the movement of the friction member on the basis of the clearance.

Provided is an electric actuator which has fewer movable portions of a motion conversion mechanism so that slapping sound less liable to occur at the time of operation of an electric drive unit, and hence has quietness. An electric actuator includes: an electric driving source configured to generate a rotational motion as a driving force; and a motion conversion mechanism configured to convert the rotational motion to a rectilinear motion. The motion conversion mechanism includes: a first member configured to be blocked to execute a rotational motion and a rectilinear motion; and a second member configured to engage with this first member to relatively rotate with respect to this first member, to thereby generate a rectilinear motion. This second member is configured to be rotationally driven by the driving force of the electric driving source.

A braking device for a wheel pivotally mounted on a shaft, comprising a rotor assembly having at least one element for rotationally connecting to the wheel, a stator assembly, and a torque tube engaged in the stator assembly and arranged to be fixedly mounted around the shaft, with at least one tenon projecting outward from the torque tube to rotationally connect the torque tube and the stator assembly and allow torque transmission between the torque tube and the stator assembly, the tenon being separate from the torque tube and arranged to be removable relative to the torque tube. (Figure from the abbreviation: Fig. 3)

The invention relates to a device for preventing rotation of a wheel (1) rotatably mounted on an axle (2) for rotation about an axis of rotation (X), comprising: a receiving member (4) rigidly attached to the wheel and provided with an inner face having regularly distributed axial cavities (4e); a rotationally stationary cage (6) extending around the axle and facing the receiving member, the cage comprising an axial recess (6a) accommodating a section (7), the section (7) being movable within the cage in a respective radial direction between an engaged position, in which the section engages in the receptacle of the receiving member, and a released position, in which the section (7) does not engage in the receptacle of the receiving member; the section is disengaged from the receiving portion of the receiving member; a pushing member (5) made of a material capable of guiding magnetic flux, extending around the axle so as to cooperate with the section via the inclined bearing surface and mounted for axial movement between a locked position, in which the pushing member forces the section into the engaged position, and an unlocked position, in which the pushing member does not engage with the section. The urging member urges the section into the release position; a resetting member (12) for resetting the pushing member to its locking position and maintaining it there; a permanent magnet (14) exerting an electromagnetic force on the urging member, intended to hold the urging member in the unlocked position against the force of the resetting member; an electromagnet (15) selectively energizable to counteract the force of the permanent magnet to allow the push member to move from the unlocked position to the locked position under the action of the reset member, or to enhance the force of the permanent magnet to move the push member from the locked position to the unlocked position against the force of the reset member. The invention also relates to a wheel and an aircraft equipped with such a device.

An electrohydraulic system for controlling a landing gear of an aircraft, said landing gear comprising a plurality of retractable landing gear units each provided with at least one wheel. Said system comprises two braking devices for braking said wheel of two landing gear units, one movement device per landing gear unit for moving a landing gear unit relative to a housing of said aircraft, and two hydraulic units, hydraulically connected to said movement devices and to at least one of said braking devices. Each hydraulic unit comprises a reservoir containing a fluid, a pump driven by an electric pump motor and a distributor configured to distribute said fluid to said at least one braking device and to said movement devices, by means of braking, extension, retraction and discharge valves.

The invention relates to a brake device (100), said brake device (100) having: a separately actuatable brake (102), which has at least one brake lining (102-2) and an actuator (102-4), which is designed to move the at least one brake lining (102-2); a sensor device (106) assigned to the brake (102), the sensor device being designed to detect a variable characterizing a state of the brake (102); and a diagnostic device (108), which is in a signal exchange connection with the sensor device (106) and is designed to perform a diagnosis on the brake (102) on the basis of the sensor signal received by the sensor device (106).

The invention relates to the technical field of railway vehicle brake systems, aims to solve the problems that an existing integrated brake device is insufficient in piping connection integration degree, poor in sealing performance, high in piping strength, large in number of parts and large in weight, and provides an integrated brake device without an internal piping system and free of air cylinder maintenance, which comprises a middle body and a maintenance-free air cylinder. A cavity and a gas path are arranged in the middle body, and the maintenance-free air cylinder is communicated with the corresponding gas path; the maintenance-free air cylinder is directly connected in a sealed mode and fixedly connected to the middle body, or the maintenance-free air cylinder and the middle body are of an integrated casting forming structure; the intermediate is provided with an external test maintenance interface; according to the integrated brake device, a piping-system-free and maintenance-free air cylinder integrated design is adopted, a piping system between an existing air cylinder and a middle body is omitted, and a direct sealing and fixed connection or integrated casting forming structure is adopted, so that the sealing performance of the integrated brake device is improved, meanwhile, piping system suffocation is eradicated, the number of parts and the overall weight of the device are reduced, and the integration degree of the device is improved.

The invention discloses a brake device of a rotary platform, a hydraulic control system and a control method thereof in the field of brake systems, and the brake device comprises a rotary motor which is in transmission connection with the rotary platform; the output end of the tail end brake is meshed with the slewing bearing; the speed reducer is used for reducing the speed of the rotary motor; a middle end brake is arranged in the speed reducer; the tail end brake and the middle end brake are both connected to a hydraulic control system, and the hydraulic control system is used for controlling synchronous opening and closing of the tail end brake and the middle end brake. According to the braking device of the rotary platform, the tail end brake is installed on the rotary bearing and directly brakes the rotary bearing, so that braking of the rotary platform is achieved, a braking conduction path is reduced, shaking during braking is reduced, and in addition, the service life of the rotary platform is prolonged. And the tail end brake on the slewing bearing and the middle end brake in the speed reducer are both controlled by the hydraulic control system, so that synchronous braking is realized, and the stability during braking is further ensured.

To provide a replacing method of an elevator hoist braking device and a braking device capable of realizing miniaturization without deteriorating performance and capable of safely being detached / attached from / to a hoist with the aid of a lifting device.SOLUTION: A replacing method of a braking device places a fixing part placed through any bolt among multiple bolts and a bracket with a locking part extending from the fixing part on the braking device, locks them at the locking part of the bracket with a hook of a lifting device or with a rope, and removes the braking device from the hoist or installs the same to the hoist while any bolt to fix at least the bracket is held in the braking device.SELECTED DRAWING: Figure 4

The invention relates to a system, housed in a pit in an aircraft runway, comprising at least one immobilizing member (1) which comprises a framework (2) that is fixed relative to the walls of the pit, a receiving mat (3) intended to receive landing gear of the aircraft, drive means (4) for driving this mat relative to the framework, braking means (5) for braking this mat, and control means (8) able to activate the drive means in response to a first signal, then deactivate the drive means while activating the braking means in response to a second signal. The system according to the invention provides for the immobilization of an aircraft in difficulty without significant stresses being exerted on this aircraft, which remains in perfect flying condition. The invention makes it possible to do away with any subsequent operation for checking the integrity of the aircraft structure. Moreover, the invention makes it possible to avoid any technical unavailability of the runway. Lastly, the invention is applicable to the immobilization of aircraft during both the landing phase and the take-off phase thereof.

The present disclosure provides an aircraft with an emergency braking system comprising an emergency braking device designed, upon activation, to significantly increase the friction between the aircraft and the runway. The emergency braking device causes the controlled destruction of at least one sacrificial component, thereby improving the deceleration of the aircraft on the runway. The sacrificial component may include collapsible wheels, a destructive braking device (306b), or an underside braking surface. The emergency braking system can be activated automatically or manually in response to emergency situations during takeoff or landing, thus providing improved safety and braking capability for the aircraft.

A brake for a means of transport, in particular a brake for a means of single track transport with at least two wheels, which comprises a standing part (3), with a standing board (17), and at least one front wheel (4) and at least one rear wheel (5), which are mounted on the standing part (3), by means of a supporting frame part (14), in such a way that the standing board (17) is arranged in the space between the front wheel (4) and the rear wheel (5), which comprises a control pedal (1), which is arranged in the front part of the standing part (3), and at least one braking means (2) is arranged on at least one rear wheel (5), with a tread wedge (10) being arranged between the standing board (17) and the control pedal (1).

A wheel device includes: a plurality of wing members configured to rotate around a central axis, wherein each wing member of the plurality of wing members may include an outer circumferential surface and each wing member of the plurality of wing members is configured to be movable to a first position in which the respective outer circumferential surfaces combine to form a circle, and to a second position in which an end of each outer circumferential surface is rotated away from the central axis of the wheel device; a deforming device configured to move each wing member of the plurality of wing members to the first position or the second position; a plurality of rollers provided on the respective outer circumferential surfaces of the plurality of wing members, wherein each roller of the plurality of rollers has a rotation axis that is not parallel to the central axis; and a braking device including a brake pad configured to contact one or more rollers of the plurality of rollers when the plurality of wing members are in the second position and to separate from the plurality of rollers when the plurality of wing members are in the first position.

The invention belongs to the technical field of elevator braking, and discloses a linkage braking device of multistage buffer type elevator safety tongs, which comprises a tongs seat, a speed governor, a brake rope wound on the speed governor, a linkage lever mounted on the outer side of the brake rope and a guide rail, an assembly cavity is formed in the front surface of the tongs seat, and a fixed wedge block and a brake wedge block are respectively arranged in the assembly cavity; a middle cable is fixedly connected to the top of the brake wedge block, one end of the linkage lever is fixed to the top of the caliper base, the linkage lever is fixedly connected with the middle cable, and a brake compensation assembly is arranged on the front face of the brake wedge block. By means of the brake wedge block, the brake compensation assembly, the thermal compensation unit and the buffer plate, multi-stage buffer type brake treatment is formed during brake treatment, the clamping brake effect of the safety tongs on a guide rail is greatly improved, graded brake is achieved when an elevator is overspeed or out of control, impact force is reduced, and passenger safety and equipment integrity are ensured; and the safety in the braking process is further improved.

The invention relates to an electro-hydraulic system (1) for controlling the landing gear (2) of an aircraft, the landing gear (2) comprising a plurality of retractable landing gear units (21, 22), each landing gear unit being provided with at least one wheel (25, 26). The system (1) comprises two braking devices (11, 12), a moving device (13, 14, 15) for each landing gear unit, and two hydraulic units (16, 17). Each hydraulic unit comprises a reservoir (161, 171) containing a fluid, a pump (162, 172) and a distributor (164, 174) distributing the fluid to at least one braking device (11, 12) and to the moving device (13, 14, 15) through a braking valve (165, 175), an extension valve (166, 176), a retraction valve (168, 178) and a discharge valve (167, 169, 177, 179).

A braking device includes one or more stationary elements and one movable element that is movable with respect to the one or more stationary elements, the moveable element being made of an electrically conductive material, one or the one or more stationary elements including magnets capable of generating eddy currents in the movable element, when the one or more stationary elements and the movable element are in relative movement. The magnets include first magnets and second magnets disposed alternating, the first magnets having a first magnetization vector and each of the second magnets having a second magnetization vector, and the magnets have widths such that the first magnets are spaced apart in pairs by a first distance that is less than a second distance separating the second magnets in pairs, and the length of the second magnets being around 70% of the length of the first magnets.

A method of parking an aircraft is disclosed including flight crew pedal braking to cause a brake force to be applied to the aircraft wheel brakes to slow the aircraft to a stationary state in which it is ready to be parked. Flight crew then activate a parking brake device and then release the pedal braking. An electronic control device, forming part of the aircraft's braking system for example, automatically intervenes, following the manual release of the pedal braking, to cause a brake force to continue to be applied to the wheels. This may be until sufficient brake force is applied, as a result of the activation of the parking brake device, to hold the aircraft in its parked state or may be for a predetermined period of time, say, ten seconds.

This invention, "A Super Wear-Resistant Aircraft Brake Disc Prepared Using a Novel Graphene-Based Composite Material," belongs to the field of new aircraft materials technology. Currently, the brake discs of most commercial airliners and military fighter jets internationally are made of carbon / carbon composite materials. When used in wide-body airliners (such as the A320), their service life is approximately 1000 takeoffs and landings, while steel brake discs can only complete 300-500 takeoffs and landings. Modern science has confirmed that graphene is currently the material with the highest strength and hardness, and it is self-lubricating, durable, and wear-resistant. This invention creatively uses graphene (C... 60 Using graphene and alloy steel powder as main raw materials, and through special processes such as powder mixing, wax-doped granulation, pressing, dewaxing, hot isostatic pressing, and sintering, a new graphene-based composite material for aircraft braking devices, with higher strength and surface hardness than alloy steel and lighter weight and super wear resistance, is prepared. If designed and manufactured properly, its service life is estimated to reach tens of thousands of takeoffs and landings.

Braking device (100), wherein the braking device (100) comprises: an individually controllable brake (102) comprising: at least one brake pad (102-2) and an actuator (102-4) configured to move the at least one brake pad (102-2), a sensor device (106) associated with the brake (102) configured to detect a quantity that characterizes a state of the brake (102), and a diagnostic device (108) that is in signal exchange communication with the sensor device (106) and is configured to perform a diagnosis of the brake (102) on the basis of sensor signals received from the sensor device (106).

A pirate ship braking device comprises a foundation support, a braking frame is vertically installed on the foundation support through a power driving device, a vertical support is installed on the braking frame, a transverse support is installed on the vertical support, a braking groove used for being matched with a pirate ship in a braking mode is formed in the transverse support, and braking leather is arranged in the braking groove. The bottom of the vertical support is installed on the brake frame through a plurality of vertically-arranged vertical buffers, the two sides of the transverse support are fixedly connected with the vertical support through a plurality of transversely-arranged transverse buffers, a transverse sliding block is further arranged at the bottom of the transverse support, and a transverse sliding rail matched with the transverse sliding block is arranged on the vertical support. Vertical sliding rails are arranged on the two sides of the brake frame, and vertical sliding blocks vertically installed on the vertical sliding rails in a sliding mode are arranged on the two sides of the vertical support. The bearing is safe and reliable, friction loss and extra stress can be effectively reduced through the improved design, and the durability and reliability of the bearing can be improved.

Brake arrangement wherein the brake arrangement has an output shaft (9) on which a brake pad carrier (7) is fixedly connected and axially movable, wherein a disc (3) having a braking surface is rigidly connected to a housing part (25, 27) of the brake, wherein at least one ball (5) is arranged between a driving shaft (1) and the pad carrier (7), which is movable in the circumferential direction in a circumferential angle section provided relative to the pad carrier (7) against a spring force generated by spring elements (20), wherein, depending on the respective circumferential angle position of the ball (5), the ball (5) pushes the pad carrier (7) to a respective corresponding axial position, the spring force depends on the respective circumferential angle, wherein the distance between the pad carrier (7) and the disc (3) having the braking surface depends in the axial direction on the respective circumferential angle position, i.e. is not constant, wherein a further brake pad carrier (2) is arranged to be axially movable on the driving shaft (1) and / or on the side of the disc (3) facing away from the first pad carrier (7), wherein the first lining carrier (7) and the further lining carrier (2) are pressed towards each other by the spring elements (20), wherein the disc (3) has a further braking surface against which the further brake pad carrier (2) can be pressed, at the corresponding circumferential angle position of the ball (5), wherein the driven shaft (9) and the driving shaft (1) are each supported by means of at least one bearing (12, 24) on the housing part (25, 27) or a housing part (25, 27) rigidly connected to it, wherein the first and second pad carriers (2, 7) are connected by means of axially extending bolts via discs (6, 10) connected to the pad carriers (2, 7) and spring elements (20) pressing on the pad carrier (7) are supported on the bolts or on nuts connected to the bolts in such a way that the balls (5) are held in the local extremum as long as no torque is transmitted from the driving shaft (1) through the balls (5) towards the first brake pad carrier (7), wherein in the circumferential direction the balls (5) are held at regular intervals from each other by means of a ball guide part (4), wherein the ball guide part (4) is connected to the driving shaft (1) in a rotationally fixed manner, wherein the first lining carrier (2) sits on an externally cylindrically shaped shaft section of the ball guide part (4) and a sliding bearing (11) of a first of the disks (10) is arranged on this shaft section, which is connected to the first lining carrier (2) in a rotationally fixed and axially fixed manner, wherein the first pad carrier (2) is guided in the axial direction by means of the first disk (10), wherein the second pad carrier (7) is connected to the second disk (6), wherein the second disk (6) is touched by the balls (5) and is non-rotatably connected to the driving shaft (9), wherein the contact surface of the second disk (6) has a circumferentially extending chamfer associated with a respective sphere (5), which is axially increased with increasing circumferential direction.

A brake device including a first device having a shaft; a brake element having a first frictional brake surface and an engageable structure; a second device rotatable relative to the first device about a rotation axis, the second device including a second member having an opening, a second frictional brake surface, and a forcing member pre-tensioned to force the second frictional brake surface against the first frictional brake surface; and an actuator connected to the first device, the actuator including an engaging structure movable between a disengaged position, and an engaged position to brake relative rotation between the first device and the second device about the rotation axis; wherein the shaft is concentric with the rotation axis and passes through the opening.

When the failure detection section (41) detects a specific failure and the entrapment detection section (42) detects entrapment, the transmission section (51) transmits a first signal to the information center (4). The process execution section (43) starts rescue processing when a second signal is received as a response to the first signal. The hoisting machine control section (45) causes the brake device (13) not to act in a state where dynamic braking of the motor (11) is effective during the rescue processing. When the position detection section (47) detects that the car (5) is disposed in a rescue zone during the rescue processing, the hoisting machine control section (45) causes the brake device (13) to act.

The invention relates to the technical field of monorail crane braking, and discloses a driving and braking device of a diesel monorail crane locomotive, which comprises a driving part arranged outside a rail, a mounting seat and a locomotive, and further comprises a braking part, the braking part comprises symmetrical fixing plates, two pull rods are rotationally arranged outside the fixing plates, and brake calipers are arranged at one ends, close to the rail, of the two pull rods; and a connecting rod A and a mounting part are arranged outside the two pull rods, and when the locomotive is in the overspeed sliding working condition and the braking part executes the emergency braking action, the mounting part can buffer the forward inclination posture generated by emergency braking of the locomotive. Rigid connection between the mounting seat and the locomotive is changed, and the buffer spring is arranged, so that a forward leaning posture generated by emergency braking of the locomotive is buffered, during normal operation, the locomotive can be kept stable during normal operation, after buffering is completed, the situation that the locomotive rebounds due to the energy storage effect of the buffer spring can be avoided, and the service life of the locomotive is prolonged. And the stable state of the locomotive after buffering gliding is ensured.