22results about "Self-applying brakes" patented technology

The utility model relates to the technical field of mining production, in particular to an anti-collision system for an electric locomotive of a rail transportation system of a mine underground haulage roadway, and aims to solve the problems that the electric locomotive is influenced by operation errors of personnel and the transportation cost is high because the conventional mine underground complex roadway rail electric locomotive generally adopts a manual driving electric locomotive mode in the ore transportation process. And collision accidents easily occur, so that the transportation and production safety and efficiency of the electric locomotive are reduced. The system comprises a power supply and a man-vehicle distance detection alarm and electric locomotive deceleration parking execution unit, when the distance between distance measurement base stations and the distance between the distance measurement base stations and a bracelet are smaller than a preset distance, the distance measurement base stations send signals to an alarm device to trigger sound-light alarm and send signals to an electric locomotive to control the electric locomotive to decelerate and stop, and a person wears the bracelet to generate vibration alarm. According to the method, the electric locomotives of the rail transportation system in the complex transportation roadway are effectively prevented from colliding with one another, and the electric locomotives and the operating personnel are effectively prevented from colliding with one another.

System and method for initiating an emergency braking of a guided vehicle (2), said system (1) being configured for cooperating with a braking system (21) of the guided vehicle (2), said system (1) comprising: - a processing unit (11) configured for initiating said emergency braking if it detects that a guided vehicle speed V at a guided vehicle position X exceeds a speed limit Vlimit defined for said position X in order to ensure a speed V0 at a final position X0 located upfront the guided vehicle (2) on a route followed by said guided vehicle (2); - the system (1) being characterized in that said processing unit is configured for automatically determining the speed limit Vlimit for said position X from an emergency brake rate function which varies in function of the guided vehicle speed at a remarkable position Pj.

Carriage (1) with a brake module (6) for a gravity overhead conveyor, characterized in that the brake module (14) comprises several fluid cylinders (15), one end of which is connected to a carriage (1) and the other end of which is eccentrically connected to an axis (4, 5) of the carriage (1), wherein the fluid cylinders (15) are indirectly eccentrically connected to the axis (4) at different mounting points (16, 17) and the mounting points (16, 17) are arranged on different running wheels (3) assigned to an axis (4, 5).

The invention discloses a tramcar active brake mechanism and a brake method, and belongs to the technical field of tramcar brake mechanisms. The tramcar active brake mechanism comprises a tramcar active brake mechanism frame, and the tramcar active brake mechanism frame is installed on a track; the brake mechanism is mounted at the bottom of the frame, the brake mechanism is matched with a toothed plate between the two rails to lock the stalled mine car on the rails, the brake mechanism comprises a driving clamping plate and a driven clamping plate, a limiting plate is arranged at the bottom of the driving clamping plate, and the limiting plate is used for locking the driving clamping plate; the two clamping plates in the device are in transmission fit through the gear set, so that the two clamping plates share one unlocking mechanism, the overall structure of the bottom of the mine car is simplified, when the two clamping plates are unlocked, the front clamping plate in the advancing direction can be automatically selected to be connected with the toothed plate in a clamped mode through the arrangement of the gear set, and therefore the situation that the mine car turns over is avoided, and the service life of the mine car is prolonged. Therefore, the mine car can be stably braked on the rail.

The present application relates to the technical field of mine flat car, especially to a wheel pair of mine flat car. The wheel pair of mine flat car comprises a mine wheel with a hollow structure, characterized in that it further comprises a runaway prevention device; the runaway prevention device comprises a mounting frame and a brake assembly, the mounting frame is coaxially installed in the mine wheel; the brake assembly comprises a brake block and an elastic member, one end of the brake block is hinged to the mounting frame, and the hinged axis is parallel to the axis of the mine wheel, the other end of the brake block is elastically connected to the mounting frame through the elastic member, and the elastic member is arranged along the radial direction of the mine wheel. By setting the brake block and the elastic member, when the flat car runs at a high speed or runs away, the centrifugal force is greater than the elastic force of the elastic member, so that the brake block is in close friction with the inner wall of the mine wheel under the action of the centrifugal force, thereby realizing the rapid deceleration of the brake block on the mine wheel.

A system and a method for initiating an emergency braking of a guided vehicle, where the system is configured for cooperating with a braking system of the guided vehicle. The system includes a processing unit configured for initiating the emergency braking if it detects that a guided vehicle speed V at a guided vehicle position X exceeds a speed limit Vlimit that is defined for the position X in order to ensure that a speed V0 is reached at a final position X0 located upfront the guided vehicle on a route followed by the guided vehicle. The processing unit of the system is configured for automatically determining the speed limit Vlimit for the position X from an emergency brake rate function which varies in dependence on the guided vehicle speed at a remarkable position Pj.

This invention relates to a railcar parking and positioning device and its operating method. A first distance sensor, connected to the crossbeam of the railcar via a bracket, is used to acquire the lateral distance between the railcar and the rail during operation. A second distance sensor is connected to the top corner of a rotating tripod. One bottom corner of the rotating tripod is movably connected to a fixed plate, and the other bottom corner faces a guide post. The fixed plate is connected to the railcar. One end of the guide post is connected to the rail, and the other end of the guide post has a reflector plate matching the second distance sensor. A slewing bearing is located on the outer side of the guide post. A tripod structure on the railcar, capable of rotating the distance sensor, works in conjunction with the guide post and reflector plate on the rail. When the railcar reaches the parking position, the tripod structure is pushed by the guide post to rotate, preventing the signal from the distance sensor from being reflected by the reflector plate. The change in the signal acquired by the distance sensor controls the railcar to stop.

The utility model discloses a mechanical gravity self-locking anti-slip device of a non-metal mine transport vehicle, and relates to the technical field of mine transport vehicles. The non-metal mine transportation vehicle comprises a chassis, the top of the chassis is fixedly connected with a non-metal mine transportation carriage, the bottom of the chassis is symmetrically and fixedly connected with shaft seats, the lower portions of the shaft seats are rotationally connected with wheel shafts through bearings, and the two ends of each wheel shaft are symmetrically and fixedly sleeved with wheels. The self-locking pieces are rotationally arranged on the two sides of the axle seat, the limiting check blocks are fixedly arranged at the bottom of the chassis, the shifting columns are fixedly arranged on the inner side walls of the wheels, the wheels can be self-locked and prevented from slipping through cooperation of the self-locking pieces, the limiting check blocks and the shifting columns, the self-locking pieces are horizontally locked through the screw rods, and the self-locking pieces can be prevented from slipping. Reverse rolling of the wheels can be achieved according to requirements, so that reverse movement of the non-metal mining vehicle can be achieved, sliding friction between the shifting column and the hammer head can be converted into rolling friction through the arranged rolling sleeve, and therefore abrasion of the shifting column and the hammer head is reduced.

The application provides a mine machinery for emergency intelligent mine car under mine, and relates to the technical field of mine car.The mine machinery for emergency intelligent mine car under mine comprises a mine car hopper, the lower end of the mine car hopper is fixedly connected with a tray support, the outer surface of the lower end of the tray support is slidably connected with a support framework, the two ends of the support framework are fixedly connected with extension sleeves, the inner side of the extension sleeves is fixedly connected with a pushing mechanism, and the inner side of the pushing mechanism is rotatably connected with a moving assembly.The mine machinery for emergency intelligent mine car under mine is capable of clamping and tightening through the fastening rod arranged outside the track, and capable of expanding outward through the track wheel arranged inside the track, so that the mine car can quickly decelerate on the track, the mine car can realize deceleration in a short distance, and the sliding of the mine car can be avoided through clamping the track, so that the effect of quickly slowing down the running speed of the mine car until stopping is achieved, and the problem of poor braking effect of the mine car in the slope and easy sliding after stopping is solved.

The present application belongs to the technical field of tunnel construction equipment, and particularly relates to a horizontal transport vehicle slipping treatment system and method, which comprises a driven wheel speed sensor, a main drive wheel speed sensor, a frequency converter, a whole vehicle controller and an intermediate relay; the driven wheel speed sensor is fixedly installed on the axis of the driven wheel, and the driven wheel speed sensor is connected with the whole vehicle controller; the main drive wheel speed sensor is fixedly installed on the tail of the main drive wheel motor, and the main drive wheel speed sensor is connected with the frequency converter, and the frequency converter is connected with the whole vehicle controller; the whole vehicle controller is connected with the main coil of the intermediate relay in control mode, and the contact of the intermediate relay is connected with the safe torque off terminal of the frequency converter. The present application can slow down the horizontal transport vehicle to a safe parking state without using a rail hooking device when the horizontal transport vehicle slips, so as to avoid damage to the rail.

The invention relates to the technical field of coal car derailment prevention, and discloses an anti-derailment buffer structure for an automatic driving coal car, the anti-derailment buffer structure for the automatic driving coal car comprises a side unloading type coal car, a box body carrying seat used for fixedly installing the coal car and driving wheels used for moving, a balance mechanism is arranged at the bottom of the box body carrying seat, and the balance mechanism comprises a moving base; a driving motor is fixed to the outer portion of the movable base, a mounting groove is formed in the movable base, a threaded rod is rotationally mounted in the mounting groove, and the end of the threaded rod is fixedly connected with an output shaft of the driving motor. By arranging the movable base, the driving motor, the threaded rod, the balancing weight, the sliding frame, the wheel carrier, the spring buffer and the sensor, the spring buffer can buffer the wheel carrier and the driving wheel, and the problem that the driving wheel derails due to the fact that the coal car inclines and shakes due to impact of crushed materials on a rail or a protruding route is prevented.

The utility model relates to the technical field of tunnel anti-slip, and provides a tunnel anti-slip device for an electric locomotive, an executing mechanism comprises a limiting hook, the limiting hook is rapidly deployed on a track under the instruction of a control module so as to effectively prevent a vehicle from sliding, a traveling assembly is further arranged at the top end of a traveling sliding rail, and the limiting hook is installed at the outermost end of the traveling assembly. A driving motor is further arranged on the outer side of the travelling crane assembly; according to the device, a complete safety protection system is formed by integrating the track support assembly, the track fixing point assembly, the anchoring facility, the control module, the sensing detection unit, the execution mechanism and the emergency response mechanism. The risk that the electric locomotive possibly slides in the tunnel due to slope topography or failure of a braking system can be effectively solved.

The invention belongs to the technical field of transportation equipment, and particularly relates to a monorail type mountain transportation device. The invention provides a monorail type mountain transportation device and aims to solve the problem that safety accidents are easily caused due to the fact that no brake is arranged on a trailer of the monorail type mountain transportation device in the prior art. A monorail type mountainous region transportation device comprises a rail arranged on a mountainous region, a traction machine is arranged on the rail, a trailer used for loading goods is further arranged on the rail, the traction machine drives the trailer to move along the rail, tooth grooves are formed in the rail and evenly arranged in the length direction of the rail, and the traction machine drives the trailer to move along the rail. Wheels are arranged on the trailer, and wheel teeth matched with the tooth grooves are arranged on the wheels; according to the monorail type mountain transportation device, the braking assembly is arranged, the wheels can be automatically locked when the speed of the trailer exceeds a set value under the emergency condition, the trailer is fixed to the rail, safety accidents are effectively avoided, and the safety in the transportation process is improved.

The application discloses a kind of rack rail car with brake car for matching, including car body frame, the bottom of the car body frame both sides is provided with walking frame assembly, the car body frame is installed with guide wheel assembly and walking wheel assembly by walking frame assembly, the bottom of the car body frame is installed with brake device, the brake device is connected with speed limiting assembly by hydraulic system, the bottom of the car body frame is provided with rail, the guide wheel assembly, brake device, walking wheel assembly are connected with rail cooperation.This application relates to the technical field of mine machinery, solves the problem that the brake trolley for matching rack rail car in the prior art has poor pressure maintaining effect, the user needs to frequently supplement pressure to continue using, and the brake trolley has small braking force, brake shoe and rail contact surface are less, when locomotive overspeed or fault occurs, brake trolley may not brake in time and other phenomena.

This application relates to a safety transport vehicle for use in mine roadways, specifically within the technical field of mining transport vehicles. The vehicle includes a body, movable wheels, and a speed-limiting assembly. The movable wheels are rotatably connected to the body. The speed-limiting assembly includes a corrugated cylinder, a centrifugal plate, and a damper. The corrugated cylinder is connected to the body and positioned within a speed-limiting groove on the movable wheel. The centrifugal plate is slidably positioned within the centrifugal groove on the movable wheel. A stabilizing spring is positioned between the centrifugal plate and the bottom of the centrifugal groove. A slider is connected to the centrifugal plate and slidably positioned within a speed-limiting groove on the movable wheel. A one-way guide is positioned within the speed-limiting groove. The damper is connected to the centrifugal plate and has a speed-limiting spring on it. The speed-limiting spring drives the damper to reset after being compressed. When the slider slides past the one-way guide, the guide provides support, allowing the damper and speed-limiting spring to be compressed by the inner wall of the corrugated cylinder. This application enables the transport vehicle to self-limit its speed when traction power fails.

The invention discloses a mine car protection device in an inclined roadway, and relates to the technical field of roadway transportation, the mine car protection device comprises a mine car body, a guide rail matched with the mine car body for use and an axle arranged on the mine car body and used for being connected with wheels, and further comprises a control assembly arranged on the axle, by arranging the control assembly and the locking piece, when axle distance deviation occurs to an axle, the auxiliary wheel can provide additional supporting force for the mine car from the side face, so that running of the mine car is more stable, meanwhile, when the axle distance deviation is too large, a thill may be disengaged from a rail, a derail event occurs, and therefore the mine car can be prevented from being damaged, and the service life of the mine car is prolonged. The auxiliary wheel is matched with the locking piece, a maximum distance can be set, when the control assembly moves to the maximum distance, the control assembly is locked, and the axle distance offset distance is prevented from continuing to be enlarged.

The invention relates to a safety type transport vehicle in a mining area roadway, and relates to the technical field of mining transport vehicles, the safety type transport vehicle comprises a vehicle body, moving wheels and a speed limiting assembly, the moving wheels are rotatably connected to the vehicle body, the speed limiting assembly comprises a corrugated cylinder, a centrifugal plate and a damper, the corrugated cylinder is connected to the vehicle body and arranged in a speed limiting groove formed in the moving wheels, and the centrifugal plate is arranged in the speed limiting groove; the centrifugal plate is arranged in a centrifugal groove formed in the moving wheel in a sliding mode, a stabilizing spring is arranged between the centrifugal plate and the bottom of the centrifugal groove, a sliding block is connected to the centrifugal plate and arranged in a speed limiting sliding groove formed in the moving wheel in a sliding mode, a one-way conduction piece is arranged in the speed limiting sliding groove, and the damper is connected to the centrifugal plate. The damper is provided with a speed limiting spring, the speed limiting spring is used for driving the damper to reset after being pressed, and when the sliding block slides through the one-way conduction piece, the one-way conduction piece can support the sliding block so that the damper and the speed limiting spring can be extruded by the inner wall of the corrugated cylinder. According to the invention, the transport vehicle can be self-limited in the case of traction power failure.

The present invention relates to the technical field of mine trolleys, and discloses a mine trolley anti-stall device, comprising a trolley bottom plate, a bucket provided on the upper surface of the trolley bottom plate, two wheel axles movably mounted on the lower surface of the trolley bottom plate, the two wheel axles comprising a front axle and a rear axle, a drive sprocket fixedly sleeved on the outer side of the rear axle, and two inverted L-shaped rods fixedly mounted on one side of the bucket at corresponding positions of the drive sprocket. The mine trolley anti-stall device is provided with a driven wheel, a pressure block, an extension block, a push block, an outer driven wheel, a trapezoidal push block and an inverted triangular block. When the outer side of the outer driven wheel contacts the clockwise rotating reduction wheel, when the next pressure block contacts the extension block, the above process is repeated to achieve the effect of braking, thereby achieving the effect of automatically slowing down the vehicle when the vehicle speed is too fast, and avoiding the problem of vehicle body instability caused by sudden and large deceleration through braking.

The utility model provides a braking system and an electric car. The brake system comprises a brake valve group, the brake valve group comprises a plurality of brake sub-components and a plurality of direct-current voltage output channels, the brake sub-components are used for executing brake control instructions of a vehicle, the first ends of the direct-current voltage output channels are connected with a first direct-current power source, and the second ends of the direct-current voltage output channels are connected with the corresponding brake sub-components respectively so as to supply power to the brake sub-components; the signal input channel comprises a plurality of digital quantity input channels and a plurality of analog quantity input channels, the digital quantity input channels are used for collecting brake digital quantity signals, and the analog quantity input channels are used for collecting brake analog quantity signals; and the signal output channel comprises a plurality of digital quantity output channels and is used for outputting the brake control instruction to the brake valve group.

The application discloses a mine car active brake mechanism and a brake method, and belongs to the technical field of mine car brake mechanisms. The mine car active brake mechanism frame is installed on a track. A brake mechanism is installed at the bottom of the frame and cooperates with a toothed plate between the brake mechanism and two tracks to lock the stalled mine car on the track. The brake mechanism comprises an active clamping plate and a driven clamping plate. A limiting plate is arranged at the bottom of the active clamping plate and is used for locking the active clamping plate. The two clamping plates in the device are driven and cooperated through a gear set, so that the two clamping plates share a set of unlocking mechanism, thereby simplifying the overall structure of the bottom of the mine car. When the two clamping plates are unlocked, the clamping plate in the front direction and close to the front can be automatically selected to be clamped with the toothed plate through the arrangement of the gear set, thereby avoiding the overturning of the mine car and enabling the mine car to be smoothly stopped on the track.

A monitoring system for a rail freight wagon (2, 3, 4), in which an axle end generator (5) is provided on an axle (aa, bb) of the freight wagon to provide an electrical supply to a mechatronic brake valve (6) for controlling brake pressures to the axle. The system further comprises a wheel speed sensor (17) and a brake pressure sensor (7) and a gateway (21) configured to transmit the data from the sensors off of the freight wagon. The mechatronic valve of the axle monitoring system enables brake pressure to be released when an axle locks to prevent wheel slide. This reduces the incidence of wheel flats and extends the life of the wheels and axles.

The present invention discloses a safety speed limiting device for a transport vehicle for subway equipment, which relates to the technical field of safety devices. The device comprises a vehicle body and a power shaft, wherein a speed reduction mechanism and a support mechanism are sleeved on the power shaft; the speed reduction mechanism comprises a fixed sleeve and a protective shell, wherein the fixed sleeve is fixed on the power shaft and an outer support body is embedded in its circumference, a brake body is elastically embedded in the inner wall of the protective shell, and the side of the brake body facing the outer support body is provided as a fitting surface; the support mechanism comprises a positioning platform, which is mounted on the vehicle body, an adjustment platform is movably provided at the bottom of the positioning platform, and the protective shell is fixed on the adjustment platform. In the present invention, the special shape of the fitting surface allows different functions to be realized between the fitting surface and the outer support body during the fitting process, thereby distinguishing whether the vehicle is moving forward or backward. The brake body can limit the rotation speed of the power shaft, thereby playing a safety protection role.