253results about "Track brakes" patented technology

The present invention provides methods for preventing low train voltages and managing interference, thereby improving the efficiency, reliability, and passenger comfort associated with commuter trains. An algorithm implementing neural network technology is used to predict low voltages before they occur. Once voltages are predicted, then multiple trains can be controlled to prevent low voltage events. Further, algorithms for managing inference are presented in the present invention. Different types of interference problems are addressed in the present invention such as “Interference During Acceleration”, “Interference Near Station Stops”, and “Interference During Delay Recovery.” Managing such interference avoids unnecessary brake / acceleration cycles during acceleration, immediately before station stops, and after substantial delays. Algorithms are demonstrated to avoid oscillatory brake / acceleration cycles due to interference and to smooth the trajectories of closely following trains. This is achieved by maintaining sufficient following distances to avoid unnecessary braking / accelerating. These methods generate smooth train trajectories, making for a more comfortable ride, and improve train motor reliability by avoiding unnecessary mode-changes between propulsion and braking. These algorithms can also have a favorable impact on traction power system requirements and energy consumption.

A user interface includes a visual display with suggested speed control throttle and / or brake settings display portion, a speedometer display portion and a distance to target guide portion. The display provides intuitive feedback information helpful for train operator decisions on how and when to change train speed control throttle and / or brake settings. In some embodiments of the present invention the interface suggests brake and / or throttle settings for reducing train speed. The distance to target guide portion includes an analog target display that grows in size as the train approaches a target point speed change or stop position. The speedometer includes analog speed scale, speed indicator needle and a suggested target speed indicator display portions.

The system includes weight measuring equipment, road length measuring equipment, controllable retarder speed regulating equipment, and track speed measuring circuit. There are two system units, and each of the system, units includes speed control module and admission passage control module and communicates with the lower work stations via LAN. There are color figure work station for the real-time display of hooking process, printer for printing alarm information and relay combination for interface circuit to constitute automatic retarder controlling system combining the speed control and admission passage control. The present invention has obvious effects in operation safety, saving cost and reducing maintenance amount.

A trolley braking system for smoothly reducing the speed of a rider supported by a harness on a cable or rope approaching a landing platform comprises a cylinder having a closed end and a piston slidably mounted in the interior. A braking cable is secured to the piston and routed through an opening in the closed end of the cylinder to a braking block, which is slidably mounted on the cable between the trolley and the landing platform. The system may also may also include a relief valve to release compressed air from the cylinder, so that the braking force may be controlled.

The invention relates to a wheel-side reducer with a brake for a bracket carrier which mainly comprises the brake, a double-planet reducer, a brake shell body, a brake shell, an inner bracket, a braking spring, a friction plate, a bearing, a spline shaft sleeve, a stop block, a distance sleeve, a round nut, an internal annular gear, an end cover gear ring, planet gears, a sun gear, an air permeable cap, an oil drain plug, an oil filling hole and a fixing block. An output end of a travelling mechanism adopts a brake plus reducer integrated design, the brake adopts totally closed wet-type braking, a spring ring comprises 30 small springs, the ring friction plate comprises 8 static friction plates and 9 dynamic friction plates, integral braking and hydraulic releasing are carried out, the spline shaft sleeve and the double-planet reducer are connected, the reduction is realized by a first-grade planet gear and a second-grade planet gear, the transmission speed ratio is 40 to 1, and the reducer and a travelling wheel are connected, thus driving the whole vehicle to run. The device has advanced design, compact structure, small volume, good heat dissipation, steady running and safe and reliable properties.

A method for controlling a remote controlled locomotive that is part of a train to insure effective braking, the method including calculating an estimated total energy of a train, calculating a threshold representing a predetermined braking capability limit of the locomotive, determining whether the estimated total energy is at least one of approaching and exceeding the threshold, and decreasing a velocity of the train until the threshold is at least one of no longer being approached and is no longer exceeded.

The present invention pertains to a low-maintenance bladder actuator for a low-profile railroad retarder. The actuator has an internal guide mechanism and internal limit stops. The guide mechanism has a concentric, telescoping guide rod and guide sleeve that are removably bolted to upper and lower plates. An integral cast head forms the upper plate and a stop sleeve that absorbs the cyclical 20,000 pound loads of the actuator. This enables the guide rod to remain concentricly aligned. The guide mechanism has sufficient stroke length (SL) and includes a long internal bushing with a low wear rate. The stop sleeve engages the lower plate to form the lower limit stop. The stop sleeve includes an inwardly extending flange that engages an outwardly extending flange of the guide sleeve to form an upper limit stop. The stop sleeve and guide sleeve form a cam lock connection for easy assembly.

The invention discloses a self energy resource controlled parking equipment,which comprises the following parts: decision rapid roof, support arm and brake beam, wherein the decision rapid roof is installed at the entrance end of parking car in front of the parking equipment; the spiro is at the outside of circuit stock rail; the support arm uses the inside and outside rail anchor to fix on the stock rail bottom and uses the bolt to fix; the brake beam snail is fixed on the support bolster; the hydraulic press is a closed hydraulic system which is integrated with hydraulic cylinder, plunger piston, reversing solenoid valve, one-way valve, accumulator, which can saves the generator, air pump, lubricant pump,accumulator,power cable,conduit line,adaptor and other external devices; when the parking equipment installs at the bottom of the classification track is use for as parking equipment, the normal condition is application position; the order is controlled by controlling building; the proof slide vehicle is carried out the automatic stopping which installs target section behind the goal application position exit; when parking equipment is used for goal brake, the normal condition is for alleviation position to carry out braking speed governing. The invention simplifies the structure, which uses widely.

The invention discloses a method for controlling plane rolling and hump rolling sub-region operation on railway vehicles. The method includes setting boundary points on the same station tracks of a railway classification yard, and setting parking devices at the boundary points; setting clamp type speed reducers at inlets of the station tracks of a classification tail yard, setting dowty retarders among speed reducer targeting area terminals and grade change point regions, setting speed measuring radar devices among shunting signal machines and the clamp type speed reducers, and arranging speed reducer section rail circuits and speed reducer control circuits; performing speed regulation operation on the vehicles by the aid of the speed reducers, the speed measuring radar devices, the speed reducer section rail circuits and the speed reducer control circuits during hump rolling operation; performing plane rolling speed regulation operation on the vehicles by the aid of the speed reducers, the speed measuring radar devices, the speed reducer section rail circuits and the speed reducer control circuits during classification tail plane rolling operation. The method has the advantages that the labor efficiency can be greatly improved, iron shoes can be omitted, potential safety hazards of operation can be reduced, and the safety level can be upgraded.

An air bladder actuated railroad car retarder is designed to simplify installation, operate in a manner imposing minimal stress on the bladder, improve preventive maintenance, and simplify access to the main fulcrum bearings. The air bladder actuator is made with lightweight aluminum end plates and utilizes a unique stud assembly for attaching the actuator to the retarder pivot arms. Rigid mounting of the air bladder with a unique pivot geometry exposes the bladder to minimal lateral deflection which is balanced in both directions. A simple stroke limiter assembly, external to the air bladder, is also used to measure and monitor wear of the main fulcrum bearings. The stroke limiter assembly is easily demountable and removable to enhance access to the main fulcrum pivot for replacement of the fulcrum bearings.

The invention relates to an intelligent run-preventing mine car used in mining, comprising a mine car, a full-automatic intelligent detection and control system arranged on the mine car and a mine car braking device of rail-clamping type. The invention is characterized in that: a. the full-automatic intelligent detection and control system comprises a car speed sensor arranged on the mine car and a braking pressure sensor, and the two sensors are connected with an electronic controller, which is also connected with an alarm, a memory extended circuit, a power circuit, a motor driving circuit for a compressing and decompressing oil pump and a driving circuit for an electromagnetic valve; b. the braking device of rail-clamping type comprises a braking box, one end of which is provided with a trailing arm which is connected with the mine car, and the other end is provided with a guide wheel of rail-clamping type. The braking box is provided with a strong rail clamping mechanism. The invention solves the problems of complicated structure, high cost, unsatisfactory effect, unreliable work and large destructiveness, etc., of the existing run-preventing mine car device and the invention is especially suitable for underground transportation in a mine.

Several embodiments of a system for connecting brake shoes to brake beams in a railroad car retarder all provide enhanced connecting joint tightness that reduces premature connecting joint loosening, reduces maintenance, and reduces failure of connecting bolts or equivalent connecting pins.

The invention discloses a device for detecting dowty retarders. The device consists of a trolley, a trolley body, a servo motor, a pneumatic pump, a dowty retarder detecting device, following wheels,driving wheels and an inclination angle sensor, wherein the trolley carries the dowty retarder detecting device to detect the dowty retarders on the two sides of a track, the electromagnetic inductionprinciple is adopted to detect whether the dowty retarders can be retracted normally or not, and detecting accuracy is improved. The faulted dowty retarders are numbered, the positions of the faulteddowty retarders are located, the positions and the numbers of the faulted dowty retarders are sent to the corresponding maintenance department through a GPRS module, workers are reminded to go to repair the faulted dowty retarders, the pneumatic pump is adopted to input high-pressure gas into the dowty retarder detecting device, and whether a sliding oil cylinder can be retracted or not is detected. The performance of the dowty retarders can be recognized without artificial foot stepping, the labor cost is effectively reduced, and the skeletal injury caused by artificial foot stepping on thedowty retarders is reduced.

The invention discloses an anti-running method for gradient tunnel track transportation, which belongs to the technical field of gradient mine shaft or tunnel track transportation, particularly relates to the technical field of gradient mine shaft or tunnel track transportation safety, and solves the technical problem that a gradient tunnel for track transportation brakes in time at the moment of broken rope running start to prevent the occurrence of running accidents and avoid the occurrence of body injury accidents. The invention adopts the technical scheme that the method comprises the following steps of: 1, increasing a hook head vehicle between a track transportation train and a steel wire rope, and arranging a slack-rope automatic closing device on the hook head vehicle; 2, arranging a braking track on a track center line of the gradient shaft or tunnel; 3, discontinuously arranging rope erecting wheels on the braking track center line; and 4, operating the slack-rope automatic closing device on the braking track section of the track along the braking track so that the slack-rope automatic closing device is clasped and braked with the braking track when the rope is broken and loosened with the braking track when the rope is not broken; and operating the slack-rope automatic closing device on the non-braking track section of the track so that the slack-rope automatic closing device is completely separated from the braking track. According to the method, when the steel wire rope is broken, the braking device is closed in time and performs braking, and the braking device is in a working state all the time when the transportation vehicle is transferred.

The invention relates to a catcher for a trackless rubber-tired vehicle applied to a coal mine auxiliary inclined shaft. The catcher comprises a speed measuring sensor, a controller and a vehicle stopper. The controller is provided with a remote switch. The vehicle stopper comprises a vehicle stopping support which is provided with an inclined roller path, the lower end of the inclined roller path is close to a roadway, and vehicle stopping foam is supported by the roller path. The remote switch and the speed measuring sensor are used in the catcher for starting the vehicle stopper, out-of-control downward sliding of a vehicle is prevented, and the problem that braking is only conducted in the vehicle, and consequently the vehicle cannot be stopped immediately is solved. Automatic control of the speed measuring sensor is used, and serious consequences caused by human errors are avoided. Gravity is used by the vehicle stopper, operation failures of the vehicle stopping foam due to machine breakdowns is avoided without the assistance of any other power. The vehicle stopping foam has multiple functions of stopping the vehicle, preventing collisions, buffering and the like, the accident rate of auxiliary transportation of the trackless rubber-tired vehicle for the coal mine auxiliary inclined shaft can be effectively reduced, and the safety of auxiliary transportation of coal mines is ensured.

The present invention pertains to a low-maintenance bladder actuator for a low-profile railroad retarder. The actuator has an internal guide mechanism and internal limit stops. The guide mechanism has a concentric, telescoping guide rod and guide sleeve that are removably bolted to upper and lower plates. An integral cast head forms the upper plate and a stop sleeve that absorbs the cyclical 20,000 pound loads of the actuator. This enables the guide rod to remain concentricly aligned. The guide mechanism has sufficient stroke length (SL) and includes a long internal bushing with a low wear rate. The stop sleeve engages the lower plate to form the lower limit stop. The stop sleeve includes an inwardly extending flange that engages an outwardly extending flange of the guide sleeve to form an upper limit stop. The stop sleeve and guide sleeve form a cam lock connection for easy assembly.

The invention provides a double-clamping flat-pushing non-gravity type electro-hydraulic vehicle retarder. The double-clamping flat-pushing non-gravity-type electro-hydraulic vehicle retarder comprises a vehicle retarder body arranged on a basic rail and a braking clamping plate, wherein the retarder body is a double-clamping flat pushing braking mechanism and comprises two braking mechanism units which are completely same, an oil cylinder is arranged between the two braking mechanism units, and the two braking mechanism units are symmetrical about the oil cylinder. The double-clamping flat pushing non-gravity-type electro-hydraulic vehicle retarder provided by the invention has the advantages and positive effects that the vehicle retarder body is in an electro-hydraulic non-gravity type, the hydraumatic movement is sensitive, braking force is adjustable, the brake and the gravity are not related, a problem that the clamping of a light vehicle is missed so as to derail is solved, and the vehicle retarder is suitable for heavy load development; the retarder is in a flat-pushing type, a braking clamping plate and a side surface of a wheel are in plane contact, the abrasion of a braking surface is reduced, the stability of the braking force is improved, and the control vehicle precision is high, the retarder only uses one oil cylinder, the oil cylinder is horizontally installed in middle of a station track, the cost is low, and the change is convenient.

The invention belongs to the field of retarders, and specifically relates to a freight train self-storage energy retarder. The problem that energy released during deceleration of an existing train isnot recovered is aimed at. The invention discloses the freight train self-storage energy retarder. The technical scheme is that the freight train self-storage energy retarder comprises a top (1), a top seat (4), and a fixing device and further comprises a ball screw (2) and a power generating and storing device, the ball screw (2) is provided with a nut (5) in a matching mode, the top (1) is fixedly connected with the nut (5), a spring (7) sleeves the ball screw (2), the spring (7) is located between the nut (5) and the fixing device, the power generating and storing device comprises a generator (23) and an energy storage device, the fixing device and the top seat (4) are connected, the lower end of the ball screw (2) is rotatably connected with the fixing device, and the lower end of theball screw (2) is connected with a rotating shaft of the generator (23). The freight train self-storage energy retarder is suitable for decelerating trains.