101results about How to "Achieve the purpose of braking" patented technology

The invention relates to an electronic fetter, in particular to an electronic fetter for controlling the action of controlled personnel within small area range. The electronic fetter comprises a transmitter part and a receiver part, wherein the transmitter part consists of a wireless transmission module and an electric shock switch; and the receiver part consists of a metal fetter, a metal lock catch, a wireless receiving module, an audible alarm module and a high-voltage electric shock module. According to the electronic fetter, wireless data is transmitted outwards by a transmitter and is received by a receiver, so that distance between the transmitter and the receiver is calculated; and when the distance exceeds a preset value, the receiver part produces sound to alarm the controlled personnel, and supervisors can send instructions by the transmitter to perform electric shock on the controlled personnel, so that the aim of controlling the action of the controlled personnel is fulfilled.

The invention discloses a brake which belongs to a brake on an aluminum extrusion production line and particularly belongs to a brake adopting high pressure oil or compressed air as brake power for braking and a disk spring for returning, in order to solve the problem of inaccurate stop position of a tractor. The brake at least comprises a cylinder (1), a piston (2), a support plate (5), a support (6), a locking block (8) and a brake pad (9). When the brake is in work, hydraulic oil or compressed air enters the cylinder (1) through a hole (10) of the cylinder (1) and pushes the piston (2) to drive the brake pad (9) onto a braking surface, thereby implementing rapid braking. According to the brake, the tractor can rapidly, accurately and safely stop at a position required by a process; and the brake is high in automatic degree, reliable in braking, and convenient to operate.

The invention discloses a vacuum pipeline magnetic levitation train braking system and method. Inflation ports are arranged on a vacuum pipeline at intervals. When the pressure inside the pipeline reaches the atmospheric pressure is detected, the inflation ports are closed and the inflation is stopped; and brake wing plates are arranged at the top portions of train compartments, and the opening and closing of the brake wing plates are in cooperation with the opening and closing of the inflation ports for control. When a train sends an emergency braking signal, an air compressor inflate the pipeline through the inflation ports, meanwhile the brake wing plates at the top portions of the train are quickly opened, the air resistance is increased when the train moves, and the train deceleratesto achieve the braking purpose. The vacuum pipeline magnetic levitation train braking system has simple structure, safety and reliability. The emergency braking problem of the vacuum pipeline magneticlevitation train is solved, and stable, safe and effective braking of the train in a vacuum environment and without train wheels is ensured.

The invention discloses a suspension system for an unmanned vehicle. The suspension system comprises a suspension axle, a driving axle and a braking axle; the suspension axle comprises a swing arm, two cross pull rods and a spring shock absorber assembly; the driving axle comprises a cage universal constant speed transmission shaft, a bearing, a handlebar head and wheels; and the braking axle comprises a brake caliber, a brake pad and a brake disc. The system well bears impact and torque under the combined action of the swing arm for bearing a longitudinal force, the cross pull rods for bearing lateral forces of the wheels and the spring shock absorber assembly for bearing the longitudinal force; and the driving axle and the braking axle are directly connected with the wheels through the swing arm, so that the structure is simplified and the transmission link is reduced. The suspension system has the advantages of simple, reasonable and compact structure, good shock absorption performance and the like, and can be applied to the unmanned vehicle or other independently driven vehicles.

The invention relates to a bogie for container transferring. Two walking wheel sets of the bogie are arranged oppositely in the length direction of a framework, each walking wheel set comprises two walking wheels, and the two walking wheels in each walking wheel set are rotatably arranged on the two sides of the width direction of the framework respectively; two driving motors are arranged at thetwo ends in the length direction of the framework respectively, and two gear boxes are fixed to the framework; each gear box is arranged between the corresponding driving motor and the walking wheel set, an input shaft of each gear box is in transmission connection with an output shaft of the corresponding driving motor, and two output shafts of each gear box are in transmission connection with rotating shafts of the two walking wheels of the corresponding walking wheel set; a braking part of each braking mechanism is arranged between the output shaft of the corresponding driving motor and theinput shaft of the corresponding gear box. The space of the bogie compact in structure can be reasonably utilized, so that the purpose of braking the bogie is achieved.

The invention discloses a single-damper single-resistor star-connection non-vibration brake frequency conversion device which comprises a frequency converter. The frequency converter comprises a power circuit, a rectifying circuit, an inverter circuit, a main control circuit, a driving circuit, a voltage sampling circuit and a current sampling circuit. The single-damper single-resistor star-connection non-vibration brake frequency conversion device further comprises a damping circuit and an electromagnetic valve. The three output ends of the damping circuit are connected with the electromagnetic valve in series and connected with the three output ends of the inverter circuit correspondingly, and the control input end of the electromagnetic valve is connected with the damping control signal output end of the main control circuit. The damping circuit comprises three resistors, one end of each resistor is connected with one end of another resistor, and the other ends of the three resistors respectively serve as the three output ends of the damping circuit. According to the single-damper single-resistor star-connection non-vibration brake frequency conversion device, the resistors in the damping circuit are used for consuming energy at the output ends, namely the load ends, of the inverter circuit so as to achieve the braking purpose, and no vibration, no noise, no overvoltage, no overcurrent and no temperature rise exists in the braking process. The single-damper single-resistor star-connection non-vibration brake frequency conversion device is an upgraded product of a traditional frequency converter.