64results about "Brakes for specific applications" patented technology

A locomotive comprises a DC power bus, traction motors, batteries, and a charging source, but has no prime mover engine. Each traction motor includes armature and field windings connected in parallel across the DC power bus. The batteries provide power to the DC power bus when in a motoring mode, and receive power from the DC power bus when in a charging mode and a dynamic braking mode. The charging source is connected across the DC power bus to provide charging power to the batteries when in the charging mode. The traction motors also provide charging power to the batteries when in the dynamic braking mode. The power from the charging source is less than the power that would be provided by a prime mover engine. The charging source provides no power to the traction motors when in the charging mode.

The invention discloses a reciprocating type passenger ropeway constant deceleration control system, and relates to the technical field of brake control. According to the method, the first-stage constant deceleration braking mode and the second-stage constant torque braking mode are set, analysis is carried out through the second-stage braking conversion algorithm, the deceleration abnormal index, the speed tracking abnormal index and the response abnormal index are output, then the mode abnormal total value is obtained, the braking state is judged, self-adaptive mode switching is achieved, and the braking efficiency is improved. Constant braking deceleration is maintained, swinging of a hanging box is reduced, comfort of passengers is improved, brake rubber abrasion is reduced, meanwhile, regional debugging is not needed, and the operation difficulty of a construction site is reduced; hydraulic loop parameters are analyzed through a failure judgment logic algorithm set by the hydraulic redundancy protection module, a loop abnormal total value is output, and hydraulic loop switching is carried out based on the loop abnormal total value; and through visual display of the fault memory interaction module, the safety redundancy of the braking system is improved, fault tracing and maintenance are facilitated, and the running reliability of the cableway is guaranteed.

A locomotive has a power bus that provides power to components of the locomotive when operating in a motoring mode or a charging mode. A plurality of batteries, one or more traction motors, and a charging source are all connected to the power bus. The batteries are operable to provide power to the power bus when operating in the motoring mode, and to receive power from the power bus when operating in the charging mode. The traction motors are operable to receive power from the power bus when the locomotive is operating in the motoring mode. The charging source intermittently provides charging power to the power bus to charge the batteries when the locomotive is operating in the motoring mode or in the charging mode. The charging source is selectively activated and deactivated based at least in part on the state of charge of the batteries.

For stopping a zip line trolley, a zip line braking system includes an impact device, a non-zip liner parallel cable, a freewheeling pulley, a tether, and at least one spring. The impact device rides on a zip line cable, wherein the impact device is positioned down the zip line cable from a zip line trolley that rides on the zip line cable. The impact device does not ride on the non-zip liner parallel cable. The tether connects the impact device to a first freewheeling pulley. The impact device applies a force to the first freewheeling pulley via the tether in response to a zip line trolley contacting the freewheeling pulley. The at least one spring is disposed on the non-zip liner parallel cable and slows the freewheeling pulley, wherein the freewheeling pulley decelerates the impact device and the zip line trolley via the tether to a stop.

An overhead man-riding device with an anti-reverse protection function comprises a steel wire rope, a driving mechanism used for driving the steel wire rope to rotate, a rope supporting wheel used for supporting the steel wire rope and a man-riding mechanism arranged on the steel wire rope, and further comprises an anti-reverse mechanism used for braking reverse rotation of the steel wire rope. The reverse rotation preventing mechanism comprises a triggering assembly arranged on the rope supporting wheel and a braking assembly arranged outside the steel wire rope. The invention aims to provide the aerial passenger device with the anti-reverse protection function so as to quickly and effectively brake the reversely-rotating steel wire rope.

The present invention discloses an overhead rail and trolley apparatus and method. The apparatus provides an overhead rail having one or more tracks. A wheeled trolley having a wheel or wheels travels upon the tracks. A stop unit on the rail is positioned to selectively halt the trolley. There is a cutout section on the rail and an insert that is attached to the rail at the cutout. The trolley wheels engage the upper surface of the insert when the trolley is halted by the stop unit. A plating on the insert increases the hardness of the insert upper surface. The insert helps prevent and / or at least lessens wear of apparatus when the trolley is halted by the stop unit.

The invention relates to the supplemental generation of energy from operation of a train, and specifically to the generation of energy in connection to the rotation of disc brake rotors in combination

An autonomous road vehicle (210) is transported by a railcar (280) for automated railed travel on a railway (298). During automated railed travel, the railcar (280) is powered by the main power source (212) of the autonomous road vehicle (210) and is driven by the driving automation control system (151) of the autonomous road vehicle (210). A driver control (254) of the autonomous road vehicle (210) enables a human driver to apply emergency braking during both road and railed travel.

The invention discloses a braking system and a train. The braking system is provided with a first wind resistance braking device which plays a role in wind resistance braking on a head train, a second wind resistance braking device which plays a role in wind resistance braking on the top of a middle train, and a third wind resistance braking device which plays a role in wind resistance braking on the side portion of the middle train. According to the scheme, the third wind resistance braking device is matched with the second wind resistance braking device, the third wind resistance braking device can guide airflow located in front of the second wind resistance braking device, the airflow is obliquely and upwards guided to the second wind resistance braking device, and the airflow is reintegrated; according to the high-speed superconductive electric maglev train, high-quality and high-energy airflow is formed in front of the second wind resistance braking device, the influence on the resistance coefficient of the second wind resistance braking device of each middle train is reduced, the influence on the braking force of a braking system is reduced, and safe braking of the high-speed superconductive electric maglev train is ensured.

The utility model relates to the technical field of coal mine equipment, in particular to a mechanical braking device for a driving wheel of a coal mine overhead man-riding device. Comprising a driving wheel set, a cross-shaped square tube, a steel wire rope, a brake assembly and an I-shaped steel support, the I-shaped steel support is fixedly arranged on a monkey vehicle travel frame, the cross-shaped square tube is fixedly arranged at the bottom of the I-shaped steel support, the driving wheel set is rotationally arranged at the bottom of the cross-shaped square tube, and the circle center of the driving wheel set coincides with the center of the cross-shaped square tube; the steel wire rope is arranged on the driving wheel set in a sleeving mode, and the braking assembly is arranged at the bottom of the cross-shaped square pipe and used for controlling braking of the driving wheel set. The device is mechanically braked, so that braking is not affected even if power is cut off. The overhead man-riding device can prevent the overhead man-riding device steel wire rope from reversing and hurting people, is high in sensitivity and ensures safety of people riding the overhead man-riding device. The device is mainly applied to mechanical braking of the driving wheel of the coal mine overhead man-riding device.

The invention relates to a modular brake device (1) for converting the substantially translational energy of a rail vehicle (6), in particular a track-laying machine, comprising a brake module (42) for conversion into another type of mechanical energy and / or into heat and / or comprising a brake module (41, 411, 412) for conversion into electrical energy, wherein: said electrical energy is to be returned to a track-side electrical supply system by means of a transformer (31, 311) and a current collector (7) and / or to be stored in an on-board electrical storage device (32) by means of a current converter and / or to be converted into heat by means of electrical power resistors; a further brake module (41, 16) is designed to completely or partially transmit the translational kinetic energy of the rail vehicle (6) to an on-board fluid system (15, 20).

The embodiment of the invention provides a suspension type air rail vehicle braking system, and belongs to the technical field of railway vehicles, the suspension type air rail vehicle braking system comprises a traction motor and a brake caliper unit, the brake caliper unit is connected with an output shaft of the traction motor, and rotation of walking wheels is limited by limiting rotation of the output shaft of the traction motor; in the braking process, rotation of the output shaft of the traction motor is directly limited through the brake caliper unit, so that in the braking process, the brake caliper unit is completely decoupled from the guide wheel and the walking wheel, the guide wheel is prevented from bearing extra friction force in the braking process, and the problems that in the braking process, the stress of the guide wheel is too large, and a plastic layer is stripped are solved.

A braking device such as for use in a fall-protection apparatus such as a self-retracting lifeline. The braking device may include a velocity -actuated pawl that is configured to be a high-moment-of-inertia pawl, e.g. by equipping the pawl with a ballast element. The device may include an inertia disk that is a damped, e.g. an actively damped, inertia disk. The velocity-actuated pawl may be biased toward a disengaged position, and the inertia disk may be biased toward a home position, by way of a co-biasing arrangement using the same biasing element.

The invention belongs to the technical field of monorail crane walking and braking in explosive environments, and particularly relates to a monorail crane hydraulic driving and braking system for an underground coal mine and a control method. The problems that an existing monorail crane is large in braking impact, the relevance between a driving system and a braking system is not high, and a driving wheel does not have the braking function are solved. The flushing and liquid changing part is used for supplementing liquid to a low-pressure pipeline of the walking driving part, and oil liquid in a high-pressure pipeline of the walking driving part is changed back to the hydraulic oil tank through a flushing valve to be cooled and used for taking away heat generated by the hydraulic driving and braking system in the walking process; the braking function part is used for realizing traveling braking, emergency braking and parking braking of the monorail crane; the liquid temperature control part senses the temperature of the hydraulic oil through a temperature control valve; the bypass valve is regulated and controlled to control the motor fan set to be automatically started and stopped so as to achieve on-demand heat dissipation of the hydraulic oil.

The utility model provides an inclined roadway rail transport driving mechanism and an inclined roadway rail transport vehicle, and belongs to the technical field of tunnel engineering equipment. The inclined drift rail transportation driving mechanism is loaded with a bearing supporting plate and comprises a driving vehicle; the axle is rotationally connected to the top of the driving vehicle so as to form a rotation pair in the vertical direction; the driving vehicle is connected with the bearing supporting plate through an axle, and the axle is rotationally connected with the bearing supporting plate to form a rotation pair in the horizontal direction; and the motor speed reducer is vertically arranged on the driving vehicle. The inclined drift rail transportation driving mechanism is simple in structure, flexible in operation and capable of further improving the transportation efficiency of an inclined drift rail transportation vehicle and the adaptability to transportation scenes.

An electromechanical assembly for a braking system of a railway vehicle is described, characterized in that it comprises a flywheel arranged to accumulate kinetic energy; wherein the kinetic energy accumulated in the flywheel is sufficient to operate the electromechanical assembly to cause the braking system to perform at least one emergency or service or parking brake action. Also described are a control system for an electromechanical assembly for a braking system of a railway vehicle and a braking system for a railway vehicle.

The invention provides a magnetic track safety braking system for a normal-conducting high-speed maglev train, and the system comprises an electric control subsystem which is installed at the bottom of a train body of the train, and is used for receiving an emergency braking signal, determining the number of magnetic track brakes needing to participate in braking and the magnitude of power-on current according to the weight of the whole train, and transmitting an emergency braking instruction; the magnetic track brakes are installed on the two sides of the bottom of the train walking mechanism in a distributed mode and used for responding to the emergency braking instruction to be powered on, and train braking is achieved by generating electromagnetic attraction to make contact friction with a track; and the storage battery is used for providing braking electric energy for the magnetic track brake. The problem that local stress is too large due to concentrated braking force is effectively solved, and the safety of the braking process and the durability of a vehicle structure are improved.

The application discloses a hydraulic cooperative braking control system for a large-gradient and heavy-load auxiliary transport robot, which comprises a brake cylinder, an oil tank, a pump unit, a first electromagnetic reversing valve and a first electro-hydraulic proportional overflow valve; a brake oil path module is arranged between the brake cylinder and the pump unit; the brake oil path module comprises a second electromagnetic reversing valve, a second electro-hydraulic proportional overflow valve and a pressure sensing unit; the second electromagnetic reversing valve is connected in series between the brake cylinder and the pump unit; the second electro-hydraulic proportional overflow valve is arranged in parallel between the second electromagnetic reversing valve and the brake cylinder and is used for controlling brake cylinder oil pressure; the pressure sensing unit is arranged at a brake shoe and is used for detecting braking force; a control module is connected with the pressure sensing unit at a signal input end and is connected with the second electro-hydraulic proportional overflow valve at a signal output end, and the control module is used for controlling the generated braking force to be maintained at a preset value; and the braking force is dynamically adjusted by means of a plurality of groups of brake oil path modules which do not interfere with each other, the braking force is accurately and constantly decelerated, and large-gradient and heavy-load downstroke working conditions are adapted.

The invention discloses a suspended double-track bus, and relates to the technical field of public transportation, and the suspended double-track bus comprises a bus body elevated above a road, magnet tracks arranged on two sides of the road, and a liquid nitrogen supplementing facility arranged on a platform; the bus body is provided with a door type structure stretching across the two lanes, the superconducting magnet is stably suspended on the magnet track through the vehicle-mounted low-temperature maintaining system, and the frictional resistance during vehicle running is effectively reduced. The mechanical guiding and driving system is used as safety redundancy when suspension fails while ensuring direction control and power output. The double-layer door type structure provides large-capacity passenger carrying space and allows social vehicles to normally pass below, so that the utilization rate of road space is increased. A liquid nitrogen supplementing facility arranged on the platform can supplement a cooling medium when the vehicle is parked, and continuous operation of the system is supported. The system provides a low-energy-consumption and high-efficiency transportation mode for urban public transportation.

This invention discloses a constant deceleration control system for a reciprocating passenger ropeway, relating to the field of braking control technology. The invention establishes a primary constant deceleration braking mode and a secondary constant torque braking mode, and analyzes the system using a secondary braking conversion algorithm. It outputs deceleration anomaly indices, speed tracking anomaly indices, and response anomaly indices, thereby obtaining a total anomaly value to determine the braking state. This enables adaptive mode switching, maintaining constant braking deceleration, reducing gondola sway, improving passenger comfort, and reducing brake pad wear. Furthermore, it eliminates the need for area-specific debugging, reducing operational difficulty at the construction site. The invention also utilizes a failure judgment logic algorithm set in the hydraulic redundancy protection module to analyze hydraulic circuit parameters and output a total anomaly value. Based on this total anomaly value, the hydraulic circuit is switched. Finally, the invention enhances the safety redundancy of the braking system through a visual display via a fault memory interaction module, facilitating fault tracing and maintenance, and ensuring the reliability of ropeway operation.

The application discloses a cableway trapped person rescue device based on GPS positioning, which comprises a sliding cable mechanism, a boom and a slow descent device. The sliding cable mechanism comprises a pulley abutting against a steel wire rope, a driving structure for driving the pulley to rotate and a brake structure for braking the pulley. The brake structure comprises a friction plate, which abuts against the pulley in a braking state. The boom is connected to the sliding cable mechanism, and the slow descent device is connected to the boom. The slow descent device comprises a pull rope, which is connected head to tail to form a ring shape. The rescue device directly transports through the cableway, which can transport by using the self-driving structure or through an auxiliary steel cable, and does not need to be carried by rescue personnel, thereby greatly reducing the load of the rescue personnel and reducing the time for reaching the scene. Moreover, the rescue device is equipped with GPS positioning, can accurately position the trapped position along the cableway, quickly transports to the scene and provides positioning.

The utility model relates to a mining working face monorail crane man-carrying device used in a coal mine, in particular to a mining working face monorail crane man-carrying device. The device is mainly designed for solving the problem that the labor intensity is increased due to long-distance walking of operating personnel going back and forth on a working face at present. The inner end of a handle is hinged to the frame; the lower end of a vertical rod is hinged to the handle; a sleeve is arranged on the frame; the vertical rod is arranged in the sleeve in a sliding manner, and the upper end and the lower end of the vertical rod extend out of the sleeve; a second spring is sleeved on the vertical rod between the connecting seat and the sleeve, the upper ends of two short inclined rods are hinged on the connecting seat, the lower ends of the two short inclined rods are respectively hinged with the lower ends of two long inclined rods, the middle parts of the two long inclined rods are respectively hinged with the frame, a cross rod is arranged at the upper ends of the two long inclined rods, and a brake pad is arranged at one end of the cross rod. The problem that the labor intensity is increased due to long-distance walking of workers is solved.

Provided is a brake control device (4) that controls the use of, as brakes for a railway vehicle (100), a regenerative brake and a tread brake (6) that generates a braking force by pressing a brake shoe (12) against a wheel (13), the brake control device (4) comprising: an acquisition unit (41) that acquires position information of the railway vehicle (100); and a control unit (42) which, on the basis of position information (7A), skidding information indicating a skidding position at which the wheel (13) has the potential to skid on a railway track on which the railway vehicle (100) travels, and brake information indicating a braking position at which the railway vehicle (100) applies the brakes, changes a brake usage condition in which the regenerative brake is more preferentially used than the tread brake (6), and in a case in which a brake command (1A) is acquired when the brake usage condition is changed, causes the tread brake (6) to be used at a prescribed ratio with respect to the braking force required by the brake command (1A) to thereby roughen the tread surface of the wheel (13) with the brake shoe (12).

The utility model discloses an aerial cableway skip bucket which comprises a skip bucket body, a stabilizing box is fixedly installed in the middle of the bottom face of the skip bucket body, traction mechanisms are fixedly arranged on the periphery of the inner wall of the stabilizing box, damping balls are fixedly arranged at one ends of the traction mechanisms, and braking mechanisms are fixedly installed on the two sides of the bottom face of the skip bucket body. A cover plate is hinged to the edge of the bottom face of the skip bucket body through a hinge, a discharging mechanism is fixedly installed on one side of the skip bucket body, and the traction mechanism comprises a traction rope A, a buffer spring and a traction rope B. According to the aerial cableway skip bucket, due to the arrangement of the traction mechanism and the damping ball, when the skip bucket body slides on an aerial cableway, external wind can blow the skip bucket body to shake, the damping ball and the skip bucket body move in the opposite direction under the inertia effect, and the shaking force of the skip bucket body is counteracted; the effect of improving the stability of the skip bucket body on the aerial cableway is achieved.

A braking interface, braking system, and braking method suitable for a heavy-haul freight train. A front contact of a relay is connected in parallel to a dry contact of a locomotive braking system. When a failure occurs in a main control computer or the main control computer loses external power, the relay is de-energized, causing the front contact to open and the dry contact to open accordingly, thereby preventing an unintended emergency braking command from being outputted to a train, so that the potential safety hazard of output of an unintended emergency braking command to a normally running heavy-haul freight train caused by a failure or loss of external power in a main control computer is solved. In addition, by additionally providing an acousto-optic alarm apparatus and performing an automatic minimum equipment list check on the main control computer before commissioning, it is ensured that an automatic protection function of the train still complies with the fail-safe principle specified in "TB / T 2615-2018: Fail-safe principle of railway signaling".

An actuator primarily activated by transversal acceleration arising from rotational acceleration of a rotatable object is presented. The object is rotatable in a plane of rotation (P) about an object pivot point in the plane of rotation (P). The actuator comprises at least two bodies adapted to be rotatably, in or parallel to the plane of rotation (P), coupled to the object at a body pivot point of each body. The body pivot point and / or the body is arranged such that a mass distribution of the body is nonuniform about the body pivot point. Due to the nonuniform mass distribution about the body pivot point, the actuator is configured to transition to an activated state, in response to rotational acceleration of the object, by the at least two bodies rotating about their respective body pivot points in a direction opposite to a direction of the rotational acceleration of the object.

The invention discloses a coal mine overhead man-carrying device transportation track turning assembly which comprises a moving mechanism and a turning mechanism, the moving mechanism comprises two sets of supporting plates located in a track, rolling wheels are rotationally arranged at the upper end and the lower end in each supporting plate through a first rotating shaft, and a brake mechanism is installed on the outer side of each first rotating shaft; the dust scraping mechanism comprises an arc-shaped sliding piece attached to the surface of the rail and an arc-shaped frame located at the front end of the arc-shaped sliding piece, and the arc-shaped frame is connected with the arc-shaped sliding piece through a fixing plate. By arranging the moving mechanism, the dust scraping mechanism, the dust suction mechanism and the brake mechanism, the problems of track impurity abrasion, secondary pollution and out-of-control sliding speed are effectively solved. During working, self-adaptive dust scraping is combined with the dust collection assembly, track impurities are automatically swept and collected through roller power, the abrasive particle effect is eliminated, and long-acting cleaning is kept; and in cooperation with the manual brake assembly, the rotating speed of the roller can be flexibly adjusted, stable operation of a curve is ensured, and therefore the stability and safety of the device are comprehensively improved.

The invention discloses a monorail crane brake trolley with a speed measuring device, which comprises a brake trolley assembly movably connected to an I-shaped rail, the assembly is provided with a contact speed measuring assembly and an overspeed protection assembly in an integrated manner, and the contact speed measuring assembly and the overspeed protection assembly are respectively arranged on two sides of a rail web. The braking trolley assembly is connected with the locomotive driving part through a flexible connecting mechanism composed of the pull rod and the connecting plate, and smooth transition and speed synchronization of curve running are guaranteed. The contact type speed measuring assembly detects the speed of the locomotive in real time through the starting wheel pressed by the spring and the speed encoder. The overspeed protection assembly comprises a centrifugal releaser rotating coaxially with the walking wheels, a shifting rod and a hydraulic braking system, and when the vehicle speed is normal, the shifting rod locks the hydraulic braking system; when the vehicle speed exceeds the limit, the centrifugal releaser is triggered, the push rod directly pokes the poking rod to rotate, constraint on the hydraulic braking system is relieved, the hydraulic braking system is reset immediately, emergency braking is implemented, and the device is particularly suitable for complex working conditions of an underground coal mine.

The invention discloses an emergency braking anti-collision system for an internal combustion traction locomotive, belongs to the technical field of internal combustion traction locomotives, and solves the problem that a material in an existing internal combustion traction locomotive cannot stably fall on a rail due to deviation of a falling point. A discharging pipe is mounted at the bottom end of the storage bin; an air cylinder assembly is mounted on the side wall of the storage bin; an adjusting plate is mounted at the output end of the air cylinder assembly; a connecting seat is mounted at the bottom end of the storage bin; and the adjusting plate slides in the connecting base, a limiting piece is installed at an opening in the end of the discharging pipe, and the limiting piece controls the material output speed, so that the materials accurately fall to the target position.

A lightweight lever braking system, belonging to the field of railway freight car technology, includes interconnected tie rod assemblies and lever assemblies. The tie rod assembly is disposed inside the web of the middle beam. A lower cover plate of the middle beam is connected to the bottom of the web. The lower cover plate has symmetrical first through holes on both sides. The tie rod assembly passes through the first through holes and is connected to the basic brake lever via a flexible connection structure. Two second through holes are opened on the web of the middle beam. The lever assembly passes through the second through holes and is connected to the drive assembly. In this invention, the brake tie rod assembly is arranged inside the middle beam cavity, while the brake cylinder and brake adjuster are arranged outside the middle beam. The overall structure is compact, without a conversion device, significantly reducing the auxiliary components of the braking system, reducing the weighing weight, and lowering costs. At the same time, it can effectively reduce the loss of braking force during movement.