27results about How to "Fast braking" patented technology

The monorail personnel transportation device for the coal mine tunnel comprises a rail assembly and a transportation vehicle advancing on the rail assembly, the transportation vehicle comprises a driving part, a cabin and a bearing trolley, the rail assembly comprises a rail, the driving part comprises a hydraulic motor and a friction wheel, the friction wheel can roll on the rail, and the cabin is arranged on the rail. Through driving of the hydraulic motor and friction wheels on the two sides, the running speed is increased, the driving force is larger, the gradeability is higher, running is more stable, a rail is clamped through a brake block of a brake assembly, rapid braking can be achieved, the transport capacity of a single train can be improved according to the needs of personnel through the modular marshalling design, and the situation that the train does not need to turn around to go back and forth is achieved through the two-way cockpit configuration; the air spring damping and rotation structure enables operation to be more stable, the track structure supports rapid extension, and the narrow fuselage design enables the device to be suitable for a complex narrow roadway network of a mine.

The utility model discloses a medical lathe with automatic transfer function, including base, transfer mechanism and brake mechanism, its upper end is equipped with the liftable bed board, transfer mechanism: it includes moving plate, receiving roller, guide roller no. 1, guide roller no. The receiving rollers are arranged at the upper end and the lower end of the left side of the base correspondingly, the first guide roller is rotationally connected to the left side of the upper end of the base, the second guide roller is rotationally connected to the right end of the base, and the two receiving rollers are in transmission connection through the transfer belt. Through cooperation of the moving plate and the transfer belt, a patient can be transferred easily, stably and rapidly, the burden of medical staff is relieved, the safety of the patient is guaranteed, the two brake pads move relatively to make contact with the rotating shaft, huge friction force can be avoided, then the medical lathe is effectively braked, and the medical lathe is prevented from deviating in the transfer process.

This invention discloses an electric ball valve, a braking system, and a rail vehicle. The electric ball valve includes a ball valve unit and an actuator unit. The ball valve unit includes a valve body and a valve core disposed within the valve body. The valve body has a first valve port and a second valve port. The actuator unit includes a housing and a transmission assembly, at least one rotary energy storage assembly, and a control assembly disposed within the housing. The transmission assembly is connected to the valve core, and the control assembly is connected to the transmission assembly and is used to control the transmission assembly and the rotary energy storage assembly to drive the valve core to rotate and open, thereby connecting the first valve port and the second valve port. According to the electric ball valve provided by this invention, the control assembly controls the transmission assembly and the rotary energy storage assembly to drive the valve core to rotate and open to exhaust air via the transmission assembly, enabling rapid braking in response to exhaust air from the brake pipe.

The invention relates to the technical field of safety protection of industrial equipment, and particularly discloses an anti-falling device of a die-casting edge trimmer. The problem that a middle base of the edge casting and cutting machine falls off in the overhauling process is solved. Comprising a fixed base, an abutting plate, a push ring and a transmission connecting rod mechanism, the base comprises two semi-annular fixed shells which are detachably connected, and the two fixed shells can be jointly clamped and fixed to a guide column of the edge trimmer; an annular groove is formed in the top of the fixed shell, and the abutting plate is arranged in the annular groove in a sliding mode and can slide in the radial direction of the guide column; the push ring is arranged above the annular groove; the transmission connecting rod mechanism is arranged between the push ring and the abutting plate, and when the push ring is subjected to pressure of falling of the edge trimmer middle base, the transmission connecting rod mechanism drives the abutting plate to abut against and lock the guide column. According to the die-casting edge trimmer, the situation that the middle base falls in the overhauling process is reduced.

This disclosure relates to a variable frequency motor controller and a garment processing device. The variable frequency motor controller includes a rectifier module, an energy discharge module, a voltage regulator module, a control module, a selector switch module, and a power module. The control module is connected to the selector switch module, which is connected to both the energy discharge module and the voltage regulator module. When the garment processing device is in an energy-dissipating braking state, the control module controls the selector switch module to connect the energy discharge module across the DC bus and disconnect the voltage regulator module from the DC bus, thereby allowing the energy discharge module to discharge the regenerative energy generated during braking. According to embodiments of this disclosure, rapid braking and extended lifespan of the voltage regulator module can be achieved. Furthermore, since no additional mechanical devices are required, mechanical friction and vibration are avoided, thus saving costs and reducing noise.

The invention provides a dual-motor anti-backlash heavy-load numerical control rotary table, and belongs to the field of numerical control machine tools, the dual-motor anti-backlash heavy-load numerical control rotary table comprises a main base body, a base protection top block is fixedly connected to the top surface of the main base body through a horizontal bolt, and a working platform is horizontally arranged on the top surface of the base protection top block. The rotary table can accurately rotate and position according to a preset angle, and a high-precision machining reference is provided for a workpiece, so that the size precision and the shape precision of a machined part are remarkably improved, and the requirement for high-precision machining is met. For example, in the machining process of aerospace parts, the rotary table can ensure that the machining precision reaches the micron level for machining of some holes, contours and other characteristics with extremely high precision requirements, the quality and performance of the parts are effectively improved, overall workpiece machining can be more accurate and efficient, and the machining efficiency is improved. And multiple directions can be expanded to meet the machining requirement, the bearing capacity is greatly improved, and the range of the types of machined workpieces is further widened.

The utility model relates to the technical field of railway transportation equipment and safety, and particularly discloses an external brake device of a track inspection tester, which comprises a supporting mechanism, the supporting mechanism comprises a supporting assembly, and a clamping assembly, a braking assembly and a driving assembly are installed on the supporting assembly. The supporting assembly and the clamping assembly are combined and fixed to a train track inspection vehicle, and the driving assembly is rotationally clamped and embedded in the supporting assembly and drives the brake assembly to abut against a train track. The torsion spring drives the connecting shaft rod to rotate, so that the brake pad is far away from a train track, and normal running of a train is guaranteed; when braking is needed, an operator only needs to rotate the handle, the first push block can be pushed to move through the second push block, then the brake pad abuts against a train track, and rapid and effective braking is achieved. In addition, a first spring in the brake assembly can drive a first push block to be away from a second fixing plate after braking, so that a brake pad leaves a rail in time, and excessive abrasion is avoided.

A pirate ship braking device comprises a foundation support, a braking frame is vertically installed on the foundation support through a power driving device, a vertical support is installed on the braking frame, a transverse support is installed on the vertical support, a braking groove used for being matched with a pirate ship in a braking mode is formed in the transverse support, and braking leather is arranged in the braking groove. The bottom of the vertical support is installed on the brake frame through a plurality of vertically-arranged vertical buffers, the two sides of the transverse support are fixedly connected with the vertical support through a plurality of transversely-arranged transverse buffers, a transverse sliding block is further arranged at the bottom of the transverse support, and a transverse sliding rail matched with the transverse sliding block is arranged on the vertical support. Vertical sliding rails are arranged on the two sides of the brake frame, and vertical sliding blocks vertically installed on the vertical sliding rails in a sliding mode are arranged on the two sides of the vertical support. The bearing is safe and reliable, friction loss and extra stress can be effectively reduced through the improved design, and the durability and reliability of the bearing can be improved.

The application discloses an electric control mechanical brake and air brake train brake control system and method, which comprises a brake signal generator, an EPB switch, an EMB controller, an EMB electric push rod assembly, a wheel brake, a trailer controller, a trailer actuating valve, an air pressure sensor, a trailer valve, an air cylinder, an air compressor, a red / yellow spiral air pipe electric connection line and a trailer air pressure brake system; the EMB controller is electrically connected with the brake signal generator and the EPB switch respectively, and the EMB controller controls the wheel brake through the EMB electric push rod assembly; the trailer controller is electrically connected with the brake signal generator, the EPB switch, the trailer actuating valve and the air pressure sensor respectively; the trailer actuating valve is electrically connected with the air pressure sensor, the trailer actuating valve and the trailer valve are connected through a pipeline, and the trailer valve is electrically connected with the trailer air pressure brake system through the red / yellow spiral air pipe electric connection line; and the air compressor is connected with the trailer actuating valve through the air cylinder.

The utility model discloses a kind of robot chassis stretch deformation mechanism, including first chassis, second chassis and stretch structure, second chassis is movably connected above first chassis;Stretch structure includes output gear and rack, output gear is set inside first chassis and partially exposes the upper surface of first chassis, output gear is connected with driving element, rack is set on the lower surface of second chassis and is engaged in output gear, output gear rotation drives rack to move to make first, second chassis stretch / stack each other.The utility model technical scheme aims at optimizing the deformation structure of robot, reduce friction, deformation is more smooth and rapid.

This invention discloses a magnetic levitation circular conveying device and method, comprising: a mounting base, a controller, a circular magnetic levitation stator rail, a material conveying mechanism, a braking mechanism, a fixing frame, a linear motion module, and a vision recognition module; the controller is disposed on the front side of the mounting base; the circular magnetic levitation stator rail is mounted on the top of the mounting base; several material conveying mechanisms are spaced apart on the inner side of the circular magnetic levitation stator rail; the braking mechanism is disposed below the circular magnetic levitation stator rail; the fixing frame is mounted on the rear side of the mounting base; and the linear motion module is disposed on the top left side of the fixing frame along the front-rear direction. This magnetic levitation circular conveying device and method can achieve rapid braking during high-speed magnetic levitation circular conveying, shortening the braking distance, and can achieve precise braking during the conveying of heavier materials, making the material movement position more accurate.

The utility model provides a frozen meat cutting device. The frozen meat cutting device comprises a rack, a cutting assembly and an emergency stop assembly, the rack comprises a machine body and a machine head, the machine body is provided with a cutting table top, and the machine head is connected with the machine body and located above the cutting table top; the cutting assembly comprises a power element, a driving wheel, a driven wheel and a band saw, the power element is arranged in the machine body, the driving wheel is in transmission connection with the power element, the driven wheel is arranged in the machine head, and the band saw is connected with the driving wheel and the driven wheel; the emergency stop assembly comprises a detection assembly and a brake assembly, the detection assembly is installed on the machine head and faces the intersection of the cutting table top and the band saw, the detection assembly is connected with the power element and the brake assembly, the brake assembly is installed in the machine body and connected with the detection assembly, and the brake assembly comprises a brake rod; the brake rod is used for being inserted into the brake hole to brake the band saw when the detection assembly detects the signal. According to the emergency stop device, braking is faster and more effective during emergency stop, the safety can be improved, and fool-proof is effectively achieved.

This utility model belongs to the field of linear motor technology, specifically a novel damping structure for a Z-axis linear motor. It includes a housing, a stator assembly at the bottom of the housing, an oscillator assembly inside the housing, and a damping assembly on the top side of the housing's interior. This utility model designs a damping assembly composed of a copper block and a magnetic ring, combined with the structural cooperation between the oscillator assembly and the stator assembly. After the motor is powered off, the relative motion of the magnet and the copper block cuts magnetic lines of force to generate electromagnetic induction. Simultaneously, the magnetic force of the coil, the iron core inside the coil, and the magnet jointly forms a damping force to consume the oscillator's kinetic energy, achieving rapid braking. This structure does not rely on magnetic fluid or physical contact, significantly improving braking stability, quietness, and consistency.

The utility model discloses a kind of automatic locking support of ship hoisting bracket, it is related to ship field, including the support plate for being fixed on ship board, further include: rotatably installed on support plate support frame;Rotatably installed in support frame inside pay-off reel;Automatic locking assembly is set in the one side of support frame, wherein, automatic locking assembly includes rotatably installed in the one side of support frame bottom turntable, and turntable side is fixedly connected with pay-off reel, and is inserted with the limit ring of being fixed in the one side of support frame. The utility model controls the stall rotation of pay-off reel by automatic locking assembly, improves the security and stability of hoisting operation, pay-off reel is fixedly connected with turntable, when reel stall rotation, turntable synchronous operation, make outer clamping plate extend and insert into limit ring under centrifugal force effect, realize automatic locking emergency stop, effectively prevent cargo falling due to traction rope stall, the design does not need manual intervention, improve the security, reliability and overall efficiency of hoisting operation.

This utility model discloses a brake, which is installed on the output end of a rotary drive device for braking the drive end of the rotary drive device. The brake includes: a base, a brake wheel, a cylinder, a brake mounting bracket, a clamping mechanism, a clamping transmission mechanism, and a compression spring mechanism. The cylinder extends and retracts upward, causing the clamping transmission mechanism to rotate, causing the left side of the clamping mechanism to press against the brake wheel. When the clamping transmission mechanism rotates, it causes the right side of the brake mounting bracket to rotate to the left, causing the right side of the clamping mechanism to press against the brake wheel, thus braking the brake wheel. When the right side of the brake mounting bracket rotates to the left, the frame of the brake mounting bracket presses against one side of the compression spring mechanism, causing the clamping mechanism to exert a clamping force on the brake wheel.

The utility model relates to the technical field of electrolytic aluminum, and discloses a carbon residue box capable of automatically discharging, which comprises a box body, a gate is longitudinally and slidably arranged on the front side of the box body, a hydraulic mechanism is arranged on the box body, and the hydraulic mechanism is fixedly connected with the gate and is used for driving the gate to longitudinally slide; the device further comprises a winding wheel mechanism, the winding wheel mechanism comprises a winding wheel rotationally arranged on the box body and a chain wound on the winding wheel, the end, away from the winding wheel, of the chain is fixed to the gate, a plurality of connecting plates are sequentially arranged on the chain in the length direction of the chain at intervals, inserting holes are formed in the connecting plates, and a plurality of inserting teeth are arranged on the gate. An included angle is formed between the axis of the gear shaper and the gate, an opening of the included angle faces downwards, and the gear shaper can be inserted into the insertion hole. The automatic discharging device can solve the problems that an existing gate needs to be opened manually, and time and labor are wasted, and automatic discharging of the carbon residue box is achieved.

The utility model provides a positioner special for three-axis grinding, which belongs to the technical field of material grinding and comprises a base, a positioning mechanism, a positioning mechanism and a positioning mechanism. The transmission wheel is rotationally arranged on the upper surface of the base, a rotating disc is fixedly arranged on the transmission wheel, and the rotating disc indirectly provides support for the cross beam; the driving gear is rotationally arranged on the base, and a gear ring corresponding to the driving gear is further arranged on the outer surface of the transmission wheel; the limiting groove is annularly formed in the bottom face of the rotating disc and located on the same axis with the rotating disc, and the inner diameter of the limiting groove is larger than the outer diameter of the gear ring; the dustproof cover is of a hollow tubular structure and is fixed to the upper surface of the base, and the top of the dustproof cover is located in the limiting groove; the dustproof box extends from the side wall of the dustproof cover, is of a box structure, is fixed to the upper surface of the base and is located outside the driving gear; the driving wheel and the rotating structure on the base can be protected through the dustproof cover and the dustproof box, so that the service life of the positioner is effectively prolonged, and the maintenance frequency of the positioner is reduced.

The invention discloses a rapid braking method and system for a high-voltage brushless motor, and relates to the technical field of braking control. The method comprises the steps that the direct-current bus voltage of a motor is monitored, and a preset voltage safety threshold value is obtained and input to a braking current decision module; dynamically calculating a braking current given value; when the direct-current bus voltage is lower than the voltage safety threshold value, the braking current given value is made to change in the increasing direction so as to accelerate braking; when the direct current bus voltage approaches or reaches the voltage safety threshold value, the braking current given value is made to change in the decreasing direction; and applying corresponding phase current to the motor based on the braking current given value until the rotating speed of the motor is reduced to the target braking rotating speed. By the adoption of the scheme, on the premise that the voltage of the direct-current bus does not exceed the voltage safety threshold value, maximum rapid braking of the high-voltage brushless motor at different rotating speeds can be achieved, it is ensured that the voltage of the direct-current bus is stable in the braking process, and damage to the motor and circuit elements caused by voltage overrun is avoided.

The utility model provides fan tower section elevator safety device, including the guide rail mechanism of fixed in the tower section inner wall, the guide rail structure sliding connection lift box, be equipped with drive mechanism between lift box and guide rail structure, drive mechanism drive lift box along guide rail structure and brake, the number of guide rail mechanism is two, and the guide rail mechanism includes first guide bar and second guide bar, be equipped with a plurality of connecting blocks between first guide bar and second guide bar, and connecting block is fixedly connected with tower section inner wall, first guide bar is equipped with rack, and drive mechanism is connected with first guide bar transmission. The utility model can realize quick brake when appearing falling breakdown again, effectively prevent the falling of lift box, guarantee the personal safety of overhauling personnel, and higher security, can guarantee the stability of lift box in the process of lifting, reduce the shaking in the process of lifting, and higher security.

The utility model relates to the technical field of handrail rails, in particular to a handrail rail for high-rise emergency escape, which comprises a rail and universal wheels, a separation mechanism is arranged on the rail, the separation mechanism comprises a fixed shaft, a torsion spring and a dust shield, the bottom of the dust shield is clamped with the torsion spring, and the bottom surface of the dust shield is rotatably connected with the fixed shaft. Through the arrangement of the separation mechanism, the two rows of dust shielding plates are separated through the universal wheels and the separation plate so that the universal wheels can roll in the universal wheel grooves, after the universal wheels pass through the dust shielding plates, the torsional springs are limited between the dust shielding plates and the rails, the dust shielding plates can cover the universal wheel grooves again through the bounce force of the torsional springs, and therefore dust and chippings are effectively prevented from entering the dust shielding plates, and the service life of the dust shielding plates is prolonged. Therefore, stagnation of the universal wheel caused by barrier blocking is avoided, meanwhile, jolting of the universal wheel caused by the barrier is avoided, the universal wheel runs more smoothly, and the best escape time is won for escapers.

The utility model discloses a motor with a brake structure, which comprises a motor main body, a reduction gearbox, a turntable and a locking device, the reduction gearbox is arranged at the front end of the motor main body and is in transmission connection with the motor main body, and an output shaft of the reduction gearbox is fixedly provided with a mounting flange; the turntable is fixedly mounted on the mounting flange through a bolt; the locking device is arranged at the tail of the motor body and comprises a connecting shaft rotating disc and a locking shaft assembly used for clamping the connecting shaft rotating disc, an output shaft of the motor body extends to the outside from the tail end of the motor body and is fixedly connected with the connecting shaft rotating disc, and the locking shaft assembly is installed at the tail of the motor body and can lock the connecting shaft rotating disc by clamping the connecting shaft rotating disc. And the connecting shaft rotating disc is decelerated and braked. The motor provided by the utility model is suitable for the motor, the motor is provided with the locking device at the tail part of the motor main body, and the locking shaft assembly in the locking device can enable the motor main body to rapidly decelerate until the motor main body stops rotating in a manner of tightly holding the connecting shaft rotating disc when the motor main body stops.

This utility model relates to the field of braking device technology, specifically a tow truck front wheel braking device, including a frame, a tow bar, a brake assembly, and a locking member. The frame includes a body and wheels, with the wheels rotatably mounted on the body. The tow bar is hinged to the end of the body away from the wheels. The brake assembly is mounted on the body, and the tow bar can rotate along the hinged position to engage with and drive the brake assembly to brake the wheels. The locking member is mounted on the tow bar, and after the tow bar drives the brake assembly to brake the wheels, the locking member engages with the brake assembly. By using the locking member, when the tow bar rotates along the hinge to engage with the brake assembly, the braking state can be locked, thus achieving continuous braking. Furthermore, the locking member is hinged, and rotating along the hinged position allows for rapid release of the brake.

The invention relates to the field of cableway logging, in particular to a safety control device for collaborative operation of cableway logging and mechanical logging of a reserve forest, which comprises a logging road area with a high-low terrain trend from left to right, and a cableway mechanical logging system is built in the logging road area. The cableway mechanical logging system comprises a cableway logging module, a mechanical logging module, a tension monitoring module, a positioning and state monitoring module and a brake protection module. The aerial cableway serves as a backbone transportation trunk line, ground machinery serves as a front-end material collecting and feeding tool, the aerial cableway and the ground machinery are seamlessly connected through a scientific process organization, an efficient, safe and economical wood concentrated transportation production line is formed, meanwhile, the cableway is used for overcoming multiple complex terrains, the plane material collecting efficiency is improved through the machinery, and the labor intensity of workers is lowered. Therefore, a three-dimensional logging network is formed, logging efficiency is greatly improved, operation safety is greatly improved, and operation cost of complex terrains is effectively reduced.

The utility model discloses a kind of split type double-limiting bushings, the split type double-limiting bushings include: inner tube, inner tube is tubular;Main outer tube, main outer tube is set in inner tube outer, main outer tube includes the first main body and the first flanging portion of being set in the first main body one end portion, and the first flanging portion is set along the end portion circumferential of first main body;Split outer tube, split outer tube includes the second main body and the second flanging portion of being set in the second main body one end portion, and the second flanging portion is set along the end portion circumferential of second main body, and the other end portion of second main body not being provided with second flanging portion and the other end portion of first main body not being provided with first flanging portion sequentially abutting along the axial direction of inner tube is set;Flexible buffer assembly, flexible buffer assembly includes the main body buffer portion being set between first main body and inner tube, the first cladding portion being covered in the outer surface of first flanging portion, and the second cladding portion being covered in the outer surface of second flanging portion.

The utility model relates to a kind of automobile brake-by-wire systems, including multiple brake actuators, vehicle body controller, brake area controller, brake-by-wire pedal brake awakener based on the state of brake-by-wire pedal to multiple brake actuators is braked and awakens;Brake-by-wire pedal brake awakener includes the displacement of brake-by-wire pedal for real-time monitoring and when displacement reaches preset displacement threshold, output pedal in place monitoring signal of wake-up module, for when power is turned on, backup brake awakens source signal is outputted by backup awakens source, set between whole vehicle power supply and backup awakens source and when receiving pedal in place monitoring signal, the wake-up switch of closure;Whole vehicle power supply is connected with wake-up module, and backup awakens source is respectively connected with each brake actuator, brake area controller communication connection.The utility model uses brake-by-wire pedal as the backup signal of wake-up brake, greatly prevents brake failure caused by brake area controller failure, and shortens the time required for wake-up brake.

The invention discloses a dual-mode cooperative control system for a range-extended tractor, and relates to the technical field of tractors, electric quantity data of a storage battery are collected through a DCV3800 monitor, an SOC value is obtained through operation of an ampere-hour integral method, and start and stop of a range extender are controlled through a threshold value; the torque and the rotating speed of a traction motor are collected through an FLC5000 sensor, the real-time load power is obtained through calculation, three working states are switched in a self-adaptive mode in combination with the SOC value, and the energy complementing power is dynamically adjusted. Multi-point monitoring of the temperature of the core component is realized through a PT1000 sensor, and early warning and shutdown are executed in a graded manner; the emergency braking module and the electromagnetic braking device achieve global cooperative braking through an EZ800 switch, the main controller further integrates overload self-adaption load reduction logic, full-dimension cooperative control over electric quantity, load, temperature and braking is achieved, the energy saving performance, stability and safety of the traction machine are improved, and the traction machine is suitable for scenes such as electric power construction in mountainous regions and urban and rural complex regions.

The application discloses a mine self-unloading truck linear control positive proportion unmanned braking system and a use method thereof, and belongs to the field of mining equipment. The mine self-unloading truck linear control positive proportion unmanned braking system comprises a hydraulic pump connected with an oil tank, and a front braking system and a rear braking system connected with the hydraulic pump through a brake valve group. The front braking system comprises a double-way brake valve, a front braking proportional valve group, a front brake valve group and a front axle dry brake. The mine self-unloading truck linear control positive proportion unmanned braking system and the use method thereof are characterized in that the linear control braking is connected in parallel with the manual operation braking, the vehicle can be quickly braked no matter which side sends a braking instruction, the manual operation braking and the linear control remote braking function are realized at the same time, the original hydraulic system is slightly changed, the vehicle is convenient to transform, and the strength is low.