27results about "Drum brakes" patented technology

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).

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.

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).

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.

A railway vehicle brake (1), particularly for freight wagons, comprises a brake linkage (1a) with brake shoes (5), a brake cylinder (3), a linkage adjuster (4), and a monitoring device (10). The monitoring device (10) has detection units (7, 7a, 7b, 7c, 7d, 8, 9) with respective sensors (71, 72, 73, 74, 75, 77, 81, 82, 90), which are supplied with electrical energy by accessing an electrical power supply network of an associated railway vehicle. A railway vehicle and a method for monitoring a railway vehicle brake 1 are provided.

The invention relates to a braking device (10), in particular an eddy current braking device (12), comprising at least a rotor part (14) rotatably arranged about an axis of rotation (16), with a shaft (20) arranged in the axis of rotation (12), a stator part (18), an actuator assembly (26), wherein the stator part (18) has at least one brake shoe (24), wherein the stator part (18) comprises an excitation device (28) with at least one excitation coil (30) with windings (32), which is configured to generate a primary magnetic field, wherein at least one recess (36), in particular a groove (36), is arranged in the brake shoe (24), in which at least a part of the excitation coil (30) with windings (32) is arranged, wherein the primary magnetic field passes through both the stator part (18) with the brake shoe (24) and the rotor part (14), so that when the rotor part rotates (14) Eddy currents are generated.Furthermore, the invention relates to a vehicle (130) with a braking device (10), and to the use of a braking device (10) in a vehicle (130).

This invention discloses a manual braking device for a tower-type pumping unit, relating to the field of oil extraction technology. Its features include: a pair of supports fixed to a base; two half-shafts respectively mounted on the pair of supports; a rotating arm mounted on the half-shafts rotates upwards to raise a lifting platform; two sets of rotary push rods push two brake blocks inwards to approach each other, completing the braking action; rotating the lifting platform in the opposite direction pulls back the brake blocks along with the two sets of rotary push rods to their original positions; one end of the half-shaft is threaded into the half-shaft threaded hole of the support via a locking thread; the push rod threaded end of the rotary push rod passes through the push rod hole and is fixed to the push rod threaded hole of the brake block; the lifting platform, rotating arm, and half-shaft nut are sequentially mounted on the half-shaft; and both ends of the handle are respectively installed in the handle holes of the two rotating arms. The advantages are: the height position of the counterweight can be controlled by on-site personnel, facilitating the commissioning and maintenance of the pumping unit, especially in cases of belt displacement, breakage, or sucker rod breakage, where manual control of the counterweight prevents safety accidents.

This invention relates to the field of brake technology and discloses a lightweight, waterproof drum brake, comprising: a brake box housing, brake shoes, a camshaft, and a rocker arm assembly. The brake box housing has a central shaft hole in the middle, and symmetrically arranged mandrels and camshaft holes adapted to the camshaft on both sides of the central shaft hole. The brake shoes are disposed inside the brake box housing via the mandrels and the camshaft. One end of the rocker arm assembly is disposed inside the brake box housing via the camshaft, and the other end of the rocker arm assembly has a brake cable connection assembly. The other end of the brake cable connection assembly passes through the outer side of the brake box housing and connects to the brake cable. The rocker arm assembly consists of a rocker arm body and an adjustment mechanism disposed within the rocker arm body. The adjustment mechanism adjusts the braking stroke after brake shoe wear. This overcomes the problem of inconvenient brake stroke adjustment in existing built-in rocker arm drum brakes due to improper installation or brake shoe wear.

The invention relates to a brake system with a parking brake, comprising: a brake pad (2) that can be pressed against a running surface of a rail wheel (1); a piston (10) to which a pressure medium can be supplied, which piston is operatively connected to the brake pad (2) and is partially accommodated in a brake cylinder (9); a spring system (4) which is coupled to the piston (10) and the brake pad (2); and a cam disk (15) which is resiliently mounted on the spring system (4) and is coupled to the piston (10) and the brake pad (2).

The utility model provides a kind of servo controller overload protection mechanical brake device, comprising: pedestal;Two mounting plates are respectively fixedly installed in the both sides of pedestal top, the top of mounting plate is fixedly installed with crosspiece, and the side of mounting plate outer surface is provided with control equipment.The utility model provides a kind of servo controller overload protection mechanical brake device, torque sensor is monitored to torque overproof and passes information to controller equipment, controller equipment controls jacking piece output shaft to move and pushes brake pad lock servo motor's output shaft, makes servo motor output shaft stop rotating, blocks overload force transmission, can quickly cut off output shaft, avoid the damage caused to equipment in overload instant, the design of brake pad, prolongs the service life of protection equipment, improves system security, can be applied to industrial automation, numerical control machine tool, robot and multiple fields, improve the practicability of brake equipment.

The utility model discloses a kind of anti-falling mechanisms, including ring seat and clamping element, ring seat is equipped with the inner hole of upper and lower through, several clamping elements are installed in ring seat bottom, several clamping elements are evenly distributed and installed in circumference, clamping element includes first inclined seat and second inclined seat, first inclined seat is fixedly installed in ring seat bottom, second inclined seat is movably connected with first inclined seat, second inclined seat is installed towards ring seat inner hole central direction, the utility model is fixedly installed in the bottom of mechanical equipment work part, the outer wall of main shaft is clamped by several evenly distributed clamping elements in circumference, to play the effect of work part bearing and anti-falling, the utility model can effectively guarantee that equipment work part stays in specific height position, to meet the operation demand.

Title: Railway braking system for railway vehicle with brakes having at least one lining or at least one shoe. The invention relates to a railway braking system comprising an actuation mechanism (15), a rotary actuation device (16) configured to be manually driven in rotation in a first direction and to actuate the actuation mechanism to put the system in a tight parking handbrake configuration, and in a second direction and to actuate the actuation mechanism to put the system in a loose parking handbrake configuration, and comprises an indicator device (21) comprising a main body (48), a drive member mechanically attached to the actuation mechanism (15) cooperating mechanically with a transmission member housed in a movable translational manner in the main body (48),and a first visual reference element (46) housed in the main body on one side thereof, and a second visual reference element (47) housed in the main body on a second side thereof. See Figure 3 for abbreviations.

The invention relates to an anti-lock device (1) for a wheel, arranged in a hydraulic pressure circuit between a master cylinder (2) and at least one brake caliper (3) of the wheel, in particular of 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 rotates below a threshold speed, to a position deployed by the centrifugal force generated when the wheel rotates beyond the threshold speed; - a pressure control system (6) comprising a hydraulic inlet (6a) connected to the master cylinder (2) and a hydraulic outlet (6b) connected to a hydraulic inlet of the brake caliper (3), the pressure control system (6) being movable between a closed position of the hydraulic circuit when the centrifugal element (4) is in the retracted position, and an open position of the hydraulic circuit driven by the centrifugal element (4) in the deployed position.

The invention relates to a braking system for a vehicle with at least one vehicle wheel, comprising at least one friction brake assigned to the vehicle wheel, which acts during operation and / or in the parked state of the vehicle, wherein the braking system includes an additional mechanical locking device for the vehicle wheel, which positively locks the vehicle wheel in the parked state of the vehicle and thereby prevents the vehicle wheel from rolling in the parked state.

This invention relates to the field of intelligent agricultural power machinery technology, specifically an intelligent sensor-activated self-starting interlocking wheeled harvester, including a frame. A harvesting module is rotatably mounted at one end of the frame in the direction of travel. A mounting frame is mounted on the frame, and a sensor module is mounted on the mounting frame. It also includes a rotating shaft with a driven disc mounted on it. A drive shaft and a power shaft are rotatably mounted on the mounting frame, connected by a transmission component. The drive disc is slidably fitted onto the power shaft. The mounting frame is equipped with a cooperating assembly and a braking component. When the sensor module detects an abnormal environment in the direction of travel, the cooperating assembly drives the drive disc away from the driven disc, and the braking component intermittently applies radial pressure to the rotating shaft to cut off the power source to the harvesting module and decelerate it. The braking component provides flexible deceleration of the harvesting module, which has had its power cut off, reducing the risk of accidents.

The invention relates to a drum brake support assembly (46) comprising a shaft-side support part (18) and a control assembly (30) fastened on the shaft-side support part, wherein the control assembly (30) comprises a camshaft (40) extending along a camshaft longitudinal axis (L) and a camshaft housing (42) in which the camshaft (40) is rotatably mounted about its camshaft longitudinal axis (L), wherein the camshaft (40) has a control cam (38) for transmitting a control torque onto a brake shoe (20, 22) of a drum brake (16), and wherein the camshaft (40; 140; 240) is provided along the camshaft longitudinal axis (L) with a drive structure (64; 164) which is kept at a distance from the control cam (38; 138), wherein the control assembly (30; 130; 230) has fastening means (58) by which the camshaft housing (42) is connected to a receiving structure (48) on the shaft-side support part (18) in order to fasten the control assembly (30) on the shaft-side support part (18). The fastening means (58) and the receiving structure (48) which cooperates with the fastening means (58) for transmitting a fastening force are designed in such a way that the control assembly (30) is connected to a shaft-side support part (18) as a preassembled control assembly (30) with the camshaft (40) received in the camshaft housing in order to be fastened on the shaft-side support part (18).

A braking system with a parking brake has a brake pad (2) that can be pressed against a running surface of a rail wheel (1), a piston (10) that can be acted upon by a pressure medium and is in operative connection with the brake pad (2) and is partially received in a brake cylinder (9), a spring system (4) coupled to the piston (10) and the brake pad (2), and a cam disc (15) that is resiliently mounted on the spring system (4) and is coupled to the piston (10) and the brake pad (2).

A railway vehicle brake (1), particularly for freight wagons, comprises a brake linkage (1a) with brake shoes (5), a brake cylinder (3), a linkage adjuster (4), and a monitoring device (10). The monitoring device (10) has detection units (7, 7a, 7b, 7c, 7d, 8, 9) with respective sensors (71, 72, 73, 74, 75, 77, 81, 82, 90), which are supplied with electrical energy by accessing an electrical power supply network of an associated railway vehicle. A railway vehicle and a method for monitoring a railway vehicle brake 1 are provided.

The utility model discloses high -precision stranding machine brake device belongs to stranding machine brake device technical field, and it includes servo motor, and servo motor output fixedly connected with the connection protection structure, one side wall center of connection protection structure is equipped with flange, and the inside center of flange is equipped with the connection rotation structure, and the front end of connection rotation structure surface is equipped with brake structure, in addition, the utility model discloses, and the elastic pad is closely attached first brake disc and produces frictional resistance through hydraulic telescopic link, and the synchronous compression is extended through compression spring along with telescopic link, and the stable additional pressure is formed through the elastic potential superposition, and the evenness and stability of brake friction force are strengthened, and can buffer the instantaneous pressure fluctuation of hydraulic system, avoid the brake precision deviation or component wear and tear caused by rigid impact, realize the accurate adjustable of brake intensity and the smooth controllable of brake process, satisfy the strict demand of high -precision stranding machine to brake response speed and speed control error.

The invention relates to a railway braking system comprising an actuating mechanism (15), a rotary actuating device (16) configured to be manually rotated in a first direction to actuate the actuating mechanism in order to place the system in a configuration in which the parking handbrake is engaged, as well as in a second direction to actuate the actuating mechanism in order to place the system in a configuration in which the parking hand brake is released, and comprises an indicator device (21) comprising a main body (48), a drive member mechanically secured to the actuating mechanism (15) mechanically engaging with a transmission member housed in a translatable manner in the main body (48), and a first visual reference member (46) housed in the main body on a first side thereof as well as a second visual reference member (47) housed in the main body on a second side thereof.

A cylinder-block-clamping brake apparatus has both parking brake capability and limited dynamic braking capability. The brake apparatus includes a first clamp arm and an opposed second clamp arm that are disposed about a rotating cylinder block that is drivingly engaged to a motor shaft of a hydraulic or hydrostatic drive unit. A first end of each clamp arm is in contact with a brake actuation cam and a second end of each arm is configured to interface one with the other to form a floating slide-pivot joint. Each clamp arm includes at least one block contact pad formed thereon. When the cam is pivoted in either direction, block contact pads formed on the clamp arms are forced against the cylinder block to prevent rotation of the cylinder block and motor shaft.

IMPROVED LINEAR ACTUATOR Linear actuator (1) comprising: - a linear unit (2) capable of generating linear motion, - a motor (3) for motorized drive of the linear unit (2), comprising a drive shaft (4), - a drive connection (5) extending from the motor (3) to said linear unit (2), - a centrifugal brake (6), connected to the drive shaft (4) or to the drive connection (5) via a one-way clutch device (7).The one-way clutch device (7) is configured such that: - when the drive shaft (4) or the drive connection (5) is driven in a first direction of rotation, the centrifugal brake (6) is not driven in rotation by said drive shaft (4) or said drive connection (5), and therefore produces no braking torque; - when the drive shaft (4) or the drive connection (5) is driven in a second direction of rotation, opposite to the first direction of rotation, the centrifugal brake (6) is driven in rotation by said drive shaft (4) or said drive connection (5) and can then produce, beyond a predetermined rotational speed, a braking torque on the drive shaft (4) or the drive connection (5). Figure to be published with the abbreviation: Fig. 1.

The present invention relates to a housing member for a clamping and / or braking device and a clamping and / or braking device including the housing member. The housing member includes a first edge and a second edge opposite the first edge, an annular recess disposed between the second edge and the first edge for clamping an annular spring plate between a first contact surface defined by the recess and a second contact surface defined by the recess, a clamping element having a clamping surface that transmits a clamping force and / or a braking force to an object to be clamped and / or braked when the spring plate is clamped in the recess between the first contact surface, the first end of the spring plate bearing on the first contact surface, and the second end of the spring plate pressing against the second contact surface, and a first housing contact surface extending between the first edge and the first contact surface and having a groove disposed therein for receiving a sealant.

A system includes a permanent magnet generator (PMG) (102) with a generator shaft (104) defining a longitudinal axis (A). A brake system (106) includes a brake shaft with a first end operatively connected to the generator shaft (104) for selectively rotating with the generator shaft or braking to slow the generator shaft. A shear shaft (110) is operatively connected to a second end of the brake shaft axially opposite the first end along the longitudinal axis. The brake system includes a press fit sleeve (118) engaged about the brake shaft (108) and an actuator (116). The actuator is operatively connected to actuate a pawl (128) between a first position spaced apart from the press fit sleeve for normal operation of the PMG, and a second position engaged with the press fit sleeve to apply braking forces to the press fit sleeve and to the generator shaft.

The application discloses an emergency brake device of a tower type oil pumping machine and relates to the technical field of oil exploitation equipment. The device comprises a base, the upper end surface of the base is provided with a plurality of positioning frames, the side of the two positioning frames on the same side is jointly provided with a cladding plate, the upper end surface of the base is fixedly connected with two symmetrically arranged rotating frames, the rotating frame is rotationally connected with a brake arm, the brake arm is provided with a pin shaft, the side wall of the pin shaft is provided with two symmetrically arranged connecting frames, the side of the connecting frame is fixedly connected with a brake pad, the device has the advantages that the device is convenient to install and disassemble, the maintenance cost and the maintenance difficulty are greatly reduced, the device has the effects of simple structure and convenient maintenance, the adaptability of the device to various working environments is improved, the working efficiency and the safety are improved, the device can be quickly braked and reset in an emergency, the safe operation of the tower type oil pumping machine is effectively ensured, and the device has the effects of flexible adjustment, strong adaptability, quick response and reliable braking.

The utility model discloses a mobile X-ray machine rack brake structure, and relates to the field of X-ray machine racks, the mobile X-ray machine rack brake structure comprises a rack vehicle body, a rotating shaft is rotatably connected in the rack vehicle body in a penetrating manner, wheels are arranged on both sides of the rack vehicle body, and a brake assembly used for braking the wheels of the X-ray machine rack is arranged outside the rotating shaft; the cams are made to rotate through the pedal, the bearings on the brake rods are moved to the locking grooves of the cams, so that the friction blocks abut against the wheels, the braking effect is achieved, manual fixing is not needed, the use convenience is improved, the cams on the two sides can rotate at the same time through use of the rotating shaft, the two friction blocks make contact with the wheels synchronously, and the braking effect is improved. The braking force is ensured to be uniformly distributed, eccentric wear of the brake pad or reduction of the braking efficiency caused by single-side pressure application is prevented, and the brake rod and the sliding block are fixed and released by using the first stud and the fixing block.