240results about "Drum brakes" patented technology

The invention relates to a housing part for a clamping and / or braking device and to a clamping and / or braking device having such a housing part. The housing part comprises: a first edge of the housing part and a second edge of the housing part opposite the first edge; an annular recess arranged between the second edge and the first edge for clamping an annular spring plate between a first bearing surface of the housing part defined by the recess and a second bearing surface of the housing part defined by the recess; a clamping element having a clamping surface which is designed, when the spring plate is clamped in the recess between the first bearing surface and the second bearing surface in such a way that a first end of the spring plate is supported on the first bearing surface and a second end of the spring plate presses onto the second bearing surface, to transmit a clamping and / or braking force to an object to be clamped and / or braked; a first housing contact surface which extends between the first edge and the first bearing surface; wherein at least one groove for receiving a sealing means is arranged on the first housing contact surface.

The mechanical double-leading and double-trailing drum brake comprises a brake drum, a brake bottom plate and two sets of brake units, the two sets of brake units are oppositely installed on the front face of the brake bottom plate in a left-right mode, and each brake unit comprises a leading brake shoe block, a trailing brake shoe block and a rotating cam arranged between the leading brake shoe block and the trailing brake shoe block. The two rotating cams are connected with the same connecting rod arranged on the back face of the brake bottom plate. The brake drum is uniformly stressed by taking the leading shoe block and the trailing shoe block as central symmetry with the circle center of the brake bottom plate, so that the brake drum and a hub bearing are protected from being damaged or even damaged by deflection force, and the service life of the brake drum and the hub bearing is greatly prolonged; and in addition, due to the arrangement of the double-leading double-trailing four-shoe block, the service life of the drum brake is prolonged, the friction force is uniform, the braking effect is better, the personal safety of a driver is ensured, and the braking is safer and more reliable.

The invention relates to an assembly comprising a railway braking system (4) for a railway vehicle (1) with brakes having at least one lining or at least one shoe as well as a set of devices for equipping the railway braking system (4), comprising a first device (90) provided with a first mounting member, a second device (21) provided with a second mounting member, and a third device (33) provided with a third mounting member, the assembly comprising a common interface body (34) that is mechanically secured to the actuating mechanism (15) and is at least temporarily mechanically secured to the rotary actuating apparatus (16) and is configured to receive each of the first mounting member, the second mounting member and the third mounting member for at least temporarily mechanically securing at least one of the first device, the second device and the third device to the actuating mechanism (15) and / or to the rotary actuating apparatus (16).

A brake assembly is suitable for use in conjunction with a wheel having a rim rotatably mounted to an axle. The brake assembly includes a rotor configured to rotate about the axis with the rim. The rotor has a first frustoconical rotor surface and either a conductive element or a magnet. The brake assembly further includes a stator fixed in rotation about the axis and configured for selective translation parallel to the axis. The stator has a first frustoconical stator surface proximate to the first frustoconical rotor surface and a conductive element, when the stator has a magnet, or a magnet, when the stator has a conductive element.

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.

The utility model discloses a floating type hydraulic brake, which relates to the field of hydraulic brakes and comprises a main mounting plate, the top surface of the main mounting plate is vertically, downwards and symmetrically welded with supporting vertical rods, the top ends of the supporting vertical rods are horizontally and fixedly welded with an auxiliary top plate, and the top surfaces of the main mounting plate and the auxiliary top plate are symmetrically provided with mounting through holes. Fixed top blocks are symmetrically welded to the top face of the main mounting plate, an overturning arc rod is vertically arranged on the side edge between the fixed top blocks, a fixed paired block is in butt joint with the inner side edge of the overturning arc rod, a brake pad is fixedly arranged on one side edge of the fixed paired block, and a limiting top rod is fixedly connected to the top end of the overturning arc rod. Auxiliary side rods are horizontally and symmetrically arranged on the two side edges of the overturning arc rod, multiple limiting and guiding structures are adopted, so that the situation of deflection and dislocation is not likely to be formed when the overturning arc rod is used for braking, and the situation of shaking is avoided when the overturning arc rod is installed and used for braking through the fixing and limiting structures on the upper face and the lower face.

This invention provides an AI-predictive control-based intelligent braking system for a CNC rotary table, belonging to the fields of intelligent manufacturing and CNC technology. It solves the problems of lag response, lack of intelligent prediction and adaptive capabilities, insufficient control precision, and long-term performance degradation found in existing CNC rotary table braking systems. This AI-predictive control-based intelligent braking system for a CNC rotary table includes a state acquisition module, an AI prediction module, a pressure control module, a wraparound braking execution structure, and a feedback correction module. By introducing an AI prediction mechanism and a self-correcting feedback loop, this invention achieves intelligent, adaptive, and highly responsive braking control, improving the positioning accuracy, braking stability, and overall energy efficiency of the CNC rotary table. It boasts advantages such as significantly improved response speed, high positioning accuracy, strong adaptive capability, smooth braking process, and high level of intelligence.

The application discloses a compact locking device, a control system and a method in the field of rail transit. The device comprises a lock body, a power unit, a transmission mechanism, a brake device and a spring friction brake device. The transmission mechanism comprises a speed reducer, a lock tongue and an energy storage element. The spring friction brake device comprises a control unit and an execution unit. The control unit is fixed on the lock body, and the execution unit is installed at the end of the non-longest shaft of the transmission mechanism. The spring friction brake device can control the rotation state and the braking state of the transmission mechanism. The transmission mechanism transmits the driving force of the power unit to unlock or lock the lock tongue. The overall size of the device is reduced, and the weight is reduced. The stability of the braking performance is further improved by the spring friction brake device cooperating with the respective spring connection. The spring friction brake device has no running-in period and better adaptability.

The invention relates to a rail vehicle brake, in particular for freight wagons, comprising a monitoring device and to a method for monitoring a rail vehicle brake. A rail vehicle brake (1), in particular for freight wagons, has a brake lever (1a) comprising a brake shoe (5), a brake cylinder (3), a lever adjuster (4) and a monitoring device (10). The monitoring device (10) has a detection unit (7, 7a, 7b, 7c, 7d, 8, 9) comprising corresponding sensors (71, 72, 73, 74, 75, 77, 81, 82, 90) which are formed by access to an electrical energy supply network of a rail vehicle to be equipped with the supply of electrical energy. A rail vehicle and a method for monitoring a rail vehicle brake (1) are provided.

Pneumatically actuated drum brake (100) for a vehicle (200a), in particular a commercial vehicle (200b), wherein the drum brake (100) comprises: a brake drum (110) with two radially extended annular braking surfaces (115); a brake carrier (120) arranged radially inside the brake drum (120); an annular brake lining arrangement (130); and a pneumatically actuated ring piston arrangement (160) for applying an axially acting clamping force of the brake lining arrangement (130) against the braking surfaces (115); wherein the brake carrier (120) comprises an air supply arrangement (125); and the air supply arrangement (125) is configured to be pneumatically actuated for the pneumatic actuation of the ring piston arrangement (160).

The invention relates to a braking device (19) for a roller (1), wherein the roller (1) comprises at least one roller body (5) rotatable about at least one rolling axis (7), which is at least partially hollow cylindrical, and wherein the braking device (19) can be arranged at least partially within the roller body (5), and wherein the braking device (19) has at least one first brake shoe (63) pivotable about at least one first pivot axis (65) extending parallel to the rolling axis (7), wherein the braking device (19) further comprises at least one first guide axis (69) operatively connected with the first brake shoe (63) and at least two retaining elements (53, 59) rotatable about the rolling axis (7), wherein the first pivot axis (65) and the first guide axis (69) are mounted in the retaining elements (53, 59) such that a relative rotation of the retaining elements (53,59) a circular distance between the first pivot axis (65) and the first guide axis (69) about the roll axis (7) can be varied, while the first pivot axis (65) and the first guide axis (69) maintain a constant radial distance to the roll axis (7); as well as a roller and a transport vehicle.

The invention relates to the technical field of thermal power plants, in particular to a brake device of a thermal power plant boiler fan, which comprises a fixing assembly, a driving assembly and a brake assembly, and the driving assembly comprises a driving part, a transmission part and a braking part, the driving part is arranged on the fixing assembly and used for providing driving force, the transmission part transmits the driving force to the braking part through self rotation, and the braking part is driven to push the braking assembly to abut against the draught fan by moving in the axial direction of the transmission part. By arranging the fixing assembly, the driving assembly and the brake assembly, the fan can be quickly braked by utilizing the friction force between the brake assembly and the fan, the impeller is kept in a static state, the reverse torque of the reverse impeller does not need to be overcome, the starting current is remarkably reduced, and the electrical impact and mechanical damage to a motor winding and a bearing are reduced.

The utility model relates to the technical field of brakes, and provides a permanent magnet drum type electromagnetic brake which comprises a machine shell, a stator, a reset element and a rotor and further comprises a permanent magnet magnetized in the radial direction, the rotor is arranged in the machine shell in a penetrating mode, the permanent magnet is fixedly arranged on the rotor in a sleeved mode, the stator is arranged on the outer side of the permanent magnet, and the reset element is connected between the stator and the machine shell. The stator is attracted by the permanent magnet to generate pressure during power loss, so that braking is formed; the magnetic force generated when the stator is electrified repels the magnetic force of the permanent magnet, the stator is pulled open by the reset element, and braking is relieved. Compared with a traditional drum-type electromagnetic brake, a mechanical force transmission structure is not needed, the structure is simplified, braking and braking releasing are achieved only through the action of a magnetic field, and the response speed is increased.

The application discloses a novel brake shoe device and relates to the technical field of brake shoes, which comprises a brake cover, a brake groove is formed in the inner side of the brake cover, a first arc-shaped brake shoe and a second arc-shaped brake shoe are arranged in the brake groove, an adjusting structure is connected to the left ends of the first arc-shaped brake shoe and the second arc-shaped brake shoe, an elastic structure is arranged between the first arc-shaped brake shoe and the second arc-shaped brake shoe, and a pushing structure is connected to the right ends of the first arc-shaped brake shoe and the second arc-shaped brake shoe. The application has the advantages of good braking effect, safety and stability, and strong practicability.

The brake device comprises a driving wheel, a driven wheel, a brake disc and a bead block, the bead block can be arranged between one end of the driving wheel and one end of the driven wheel in a radial moving mode, a linkage groove is formed in one end of the driving wheel, and a linkage part is arranged at one end of the driven wheel; when the driving wheel is rotated, one end, in the radial direction, of the bead block is located in the linkage groove, the inner side wall, in the circumferential direction, of the linkage groove is in linkage with the bead block to synchronously rotate, the other end, in the radial direction, of the bead block drives the linkage part to rotate, the linkage part is in linkage with the driven wheel to rotate, and the bead 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 bead block to move towards the brake disc in the radial direction, so that one end, in the radial direction, of the bead block extends out of the linkage groove and is in friction contact with the inner side wall of the brake disc; the mechanical one-way brake structure design is achieved, braking can still be kept when an electronic brake fails, and potential safety hazards are avoided.

The invention relates to a braking and / or clamping device comprising an annular housing which has at least one pneumatic or hydraulic connection and surrounds a rod receptacle oriented in the axial direction, wherein the housing has a base part and a cover part, and wherein at least one annular pressure chamber is located within the housing. The pressure chamber is delimited in the axial direction by means of at least one piston which is movable in the axial direction. The pressure chamber is delimited in the radial direction by means of the outer walls of the housing and by means of at least one inner ring which surrounds an inner wall of the housing, said inner wall having at least one inner wall portion. In the housing, a disk element is disposed on the piston top face, which faces away from the pressure chamber and is oriented in the axial direction. The piston top face is or can be seated against or fastened to said disk element. The inner wall portion is protrudingly located in a cover part or in a base part of the housing. By means of the present invention, a quickly responding braking and / or clamping device having a small stroke and high accuracy is developed.

The utility model relates to the technical field of speed reducers, and discloses a speed reducer capable of braking emergently, which comprises a speed reducer body and a base, the bottom of the speed reducer body is fixed on the top of the base, and a rotating shaft is fixed on an output shaft of the speed reducer body. When the brake clamping block is used for a long time and needs to be replaced, the baffle is pressed, the position of the through hole is parallel to the sliding rod, meanwhile, the movable hole is parallel to the L-shaped rod, normal movement of the sliding rod and the L-shaped rod is not affected, at the moment, the L-shaped rod is pulled, the clamping block is separated from the clamping groove, limiting of the brake clamping block is relieved, the brake clamping block is taken out for replacement, and rapid disassembly and assembly are achieved. The L-shaped rod can be limited by inserting the brake clamping block into the moving block, enabling the clamping block to enter the clamping groove and pulling the baffle, enabling the position of the through hole to be staggered with the sliding rod and enabling the position of the moving hole to be staggered with the L-shaped rod, so that the situation that the clamping block is separated from the clamping groove when the L-shaped rod is accidentally touched during installation can be avoided, and rapid installation is facilitated.

To provide a hoisting machine and elevator that can prevent damage to the lining. [Solution] The hoisting machine comprises a drive sheave, a braked body that rotates together with the drive sheave, and an electromagnetic brake device that brakes the rotational movement of the braked body and the drive sheave. The electromagnetic brake device has a brake shoe 15 that approaches and moves away from the braked surface of the braked body, and a plurality of linings 16 provided on one surface of the brake shoe 15 facing the braked surface and in contact with the braked surface. The plurality of linings 16 are arranged so as to avoid the locations of fixing holes 34 provided on the brake shoe 15 that face the braked body.

The invention relates to a drum brake (1) for a vehicle, in particular for commercial vehicles, comprising a brake carrier (3), a brake drum (2) rotatable relative to the brake carrier (3) about a drum axis (TA) and having a drum opening (22), which has a circumferentially formed inner friction surface (28), wherein the brake carrier (3) is arranged inside the brake drum (2), and a brake lining arrangement (6), wherein the drum opening (22) is axially conical and widens in the direction of a particle collection unit (24) with which the drum opening (22) is connected, wherein the brake particles (25) generated during a braking process can be moved out of the drum opening (22) under the influence of the centrifugal force occurring during a rotational movement of the brake drum (2).

A vehicle includes a rotationally movable actuating element and a sensor arrangement for measuring an actuating angle of the actuating element. The sensor arrangement has a measuring acceleration sensor which is fastened to the actuating element, and a reference acceleration sensor which is fastened immovably to the vehicle. A method for measuring the actuating angle of a rotationally movable actuating element in a vehicle, a measuring arrangement configured to carry out a method for measuring, a computer program product and a provision apparatus for the computer program product, are also provided.

The purpose of the present invention is to provide a compact safety brake for a railway vehicle. A safety brake (100) for a railway vehicle according to the present disclosure is provided with: a braking shaft (1) in at least part of which screw thread is formed; a braking unit (2) for holding the braking shaft (1) at a predetermined angle of rotation if rotation of a wheel (29) of the railway vehicle is not decelerated, and relaxing the hold on the braking shaft (1) if rotation of the wheel (29) is decelerated; a first support section (10) for rotatably supporting the braking shaft (1); a braking coil spring (19) for pressing the first support section (10) if rotation of the wheel (29) is not decelerated; a second support section (14) for supporting the braking coil spring (19) at a position facing the first support section (10); and a linear motion unit (17) that is contained in the braking coil spring (19) and is in contact with the screw thread of the braking shaft (1), and is connected to the second support section (14) and causes the second support section (14) to move rectilinearly toward the wheel (29) to decelerate rotation of the wheel (29).

The utility model provides a kite wheel brake device, which relates to the technical field of kite folding and unfolding control appliances, and comprises an inner wheel disc and an outer wheel disc which are rotatably mounted together, two brake blocks are hinged on the inner wheel disc and are used for braking the outer wheel disc, a cam is arranged between the two brake blocks, and the inner wheel disc and the outer wheel disc are hinged on the cam. The cam is installed on the inner wheel disc in a rotating mode, the cam abuts against one brake block, a length-adjustable connecting rod assembly is jointly connected between the cam and the other brake block, and a reset element is arranged between at least one brake block and the inner wheel disc. According to the brake device, the outer wheel disc is braked, meanwhile, the brake distance between the two brake blocks and the outer wheel disc is adjusted, and the situation of brake delay caused by abrasion of the brake blocks is avoided.

This invention discloses a drum-type working brake device for a passenger transport device, comprising: a brake wheel for braking the passenger transport device; a brake arm assembly for braking or normal operation of the passenger transport device by pressing or releasing the brake wheel; a spring assembly for applying a preset elastic force to the brake arm assembly to press it closed; and an electromagnet assembly that, when energized, overcomes the spring force and moves the brake arm assembly away from the brake wheel; the electromagnet assembly is disposed between the brake wheel and the spring assembly. This invention not only reduces the risk of friction plate contact but also lowers the assembly precision requirements.

The utility model discloses a novel braking mechanism which comprises a braking wheel, the braking wheel is fixedly connected with the driving end of a driving motor, the driving motor is fixedly connected to a fixing base, the bottom face of the fixing base is fixedly connected with the top face of an installation base, the top face of the installation base is fixedly connected with the bottom face of an adjusting base, and an adjusting cavity is formed in the adjusting base. A sliding opening is formed in the top face of the inner wall of the adjusting cavity, a servo motor is embedded in the inner bottom face of the adjusting cavity, the driving end of the servo motor is fixedly connected with the bottom face of a rotating disc, and the outer ring of the rotating disc does not make contact with the inner wall of the adjusting cavity. The two ends of the top face of the rotating disc are symmetrically and fixedly connected with the bottom faces of two first clamping blocks, and the first clamping blocks are connected into first connecting holes formed in the connecting rods in a clamped mode. According to the utility model, the brake pad can be disassembled and assembled through the fixing bolt, the brake pad can be quickly positioned through the positioning groove and the positioning block, and the assembly efficiency is improved.

The brake device (1) provided for a railway vehicle comprises at least one wheelset (99) having a wheelset axle (98), along which a wheelset axis (y) extends coaxially, and the brake device (1) comprises wheels (9, 9', 9'') directly or indirectly connected to the wheelset axle (98) and rotatable about a wheel axis (x), and comprises eddy current rotors (22A; 22B) connected to the wheels (9, 9', 9''), and the eddy current rotors (22A; 22B) and at least one friction brake (3; 3A, 3B) having a friction rotor (32; 32A, 32B; 92) connected to or integrated in the wheels (9, 9', 9'') and having a friction stator (31; 31A, 31B) displaceable relative to the friction rotor (32; 32A, 32B; 92). - the eddy current brake (2A; 2B) and the friction brake (3; 3A, 3B) can be sequentially actuated by a single actuation device (7) and drive device (8), said drive device (8) being connected to the actuation device (7) and controllable by a control unit (10); the eddy current rotor (22A; 22B) is designed as one piece or segmented, has a disk or ring shape, is aligned coaxially with the wheel axis (x) and is connected to one side of the wheel (9, 9', 9'') or is integrated into the wheel (9, 9', 9''); at least one eddy-current stator (21A; 21B) is designed as one piece or segmented and is displaceable in the direction of the wheel axis (x) in front of the eddy-current rotor (22A; 22B) or tiltable segment-by-segment relative to the eddy-current rotor (22A; 22B); - the wheels (9, 9', 9'') have a wheel rim (92) acting as a friction rotor (32) with a front surface (921) directed radially outward with respect to the wheel axis (x) acting as a braking surface, and the friction stator (31) is displaceable with respect to the front surface (921).

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 utility model discloses a miniature unmanned sweeper drive-by-wire brake structure, and relates to the technical field of unmanned sweepers, the miniature unmanned sweeper drive-by-wire brake structure comprises a sweeper body, the sweeper body comprises a housing, the inner wall of the housing is fixedly connected with a mounting vertical plate, the bottom end of the mounting vertical plate is internally and rotatably provided with moving wheels, and the moving wheels are fixedly connected with the housing. And a braking unit is arranged above the mounting vertical plate. The hydraulic cylinder is started, the extending end of the hydraulic cylinder is used for pushing the piston rod to promote the lifting transverse plate to move up and down, when the lifting transverse plate moves downwards, the push-pull rods on the two sides can be pushed, the inclination angle of the push-pull rods is changed, and the other end of the lifting transverse plate is used for pushing the two brake clamps to move relatively. When the brake clamps move relatively, the two groups of brake arc blocks are driven to move relatively along with the brake clamps, the brake arc blocks are extruded and clamped on the outer surfaces of the two sides of the moving wheels, the braking purpose is achieved, brake pads and brake bumps are matched to generate friction force with the moving wheels, the brake efficiency is further improved, and the parking stability of the sweeper is further improved.

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).