37results about How to "Braking achieved" patented technology

A device for switching false urgent accelerator operation into emergency braking during the emergency state of a vehicle comprises a retractor, a retractable belt-retracting spring and pawls, the retractor is connected with a braking system, a retractable belt of the retractor is connected with an accelerator cable, the principle of the retractable is similar to the principle of an automotive safety belt, the retractable belt-retracting spring is mounted on one side of the retractable belt in the retractor, the pawls are mounted on the other side of the retractable belt, and the pulling speedof the retractable belt controls the centrifugal force of the pawls and adjusts the centrifugal positions of pawl teeth, so that the retractable belt can be freely pulled or stuck and can drive the braking system to carry out braking. The device is characterized in that: the retractor is mounted in a rectangular cavity-shaped emergency brake box, and is normally located at one end in the emergency brake box, which is close to a connecting cable of the braking system, and when the accelerator-stepping speed is over-high, the retractable belt is stuck to pull the retractor and drive a braking cable, so that the braking system is pulled to carry out braking.

The invention belongs to the field of transportation, and particularly discloses a novel acceleration and braking device. The novel device is attached to a steering wheel of a vehicle. The novel acceleration and braking device can perform acceleration and braking of the vehicle through hand motions. Due to the fact that large burdens are applied to legs when a driver drives a vehicle with an existing pedal type acceleration and brake pedal for a long time, fatigue of legs and joint discomfort are likely to be caused; due to the fact that the design that the acceleration pedal and the brake pedal are stamped by the right foot is adopted, the driver may stamp the acceleration pedal by mistake when the brake pedal needs to be stamped in an emergency, a plurality of painful results are caused. Due to the design of the novel acceleration and brake equipment, working can be transferred to hands when legs are tied, so that switching of hands and legs is achieved, burdens are relieved, and the design is more user-friendly; when in an emergency, a person gets used to clenching the hands, so that the steering wheel is clenched naturally through the motion, the brake effect is achieved naturally, and it is expected that the vicious incidents caused when the driver stamps the acceleration pedal instead of the brake pedal are reduced greatly.

The invention relates to a method for control of a pressurised air supply system for a motor vehicle (10), said system comprising a drive motor (1) for driving the motor vehicle, which drives an air compressor (3) by means of a drive connection (2), or said drive connection for driving the air compressor may be switched on. Said method comprises the following method steps: in a supply condition, the air compressor is driven by the drive motor and connected with the air supply side (3.1) thereof to a compressed air system (5) of the motor vehicle (10), such that compressed air is supplied to the compressed air system, in a non-supply condition, the air compressor is not driven and/or is not connected to the compressed air system, whereby the switching of the supply or non-supply condition is carried out on the basis of a comparison of at least one switch pressure value with a pressure (25) in the compressed air system (5) and the topography of the stretch of road (11) on which the motor vehicle (10) is travelling is recorded, said topography includes the profile of the path (12) which the vehicle (10) must cover within a directly following period of time and/or path distance to a given destination. At least one switch pressure value (20,30) is fixed on the basis of the determined topography.

The invention relates to a brake structure and a wheelchair comprising the same. The brake structure comprises a mounting bottom plate and a brake assembly, wherein the mounting bottom plate is fixedly connected with the frame of the wheelchair; the brake assembly is movably arranged on the mounting bottom plate and is used for contacting with and rubbing the rear wheels of the wheelchair. The brake assembly comprises a mandrel, a friction wheel and a locking mechanism, wherein the friction wheel can be unidirectionally and rotatablely sheathed onto the mandrel; the locking mechanism is used for enabling the friction wheel and the mandrel to do relative standstill locking; when the locking mechanism is in a locking state, the friction wheel and the mandrel do the relative standstill locking; and when the locking mechanism is in an unlocking state, the friction wheel only can rotate to the single direction relative to the mandrel. According to the brake structure and the wheelchair comprising the same, half brake and full brake can be realized; the half brake is selected when the wheelchair runs on an abrupt slope, thereby, the forwarding resistance is increased or the wheelchair is prevented from rolling; and when the wheelchair runs on a level road, the full brake of the brake structure can be selected, thereby, the free forwarding or reversing of a user is not influenced.

The invention discloses a distribution line pay-off unit which comprises a pay-off frame. A pay-off shaft is rotationally arranged on the pay-off frame; a pay-off reel is fixedly arranged on the pay-off shaft; the pay-off shaft is fixedly connected with a rotating handle; a brake device for enabling the pay-off reel inertially rotating to brake is arranged on the pay-off frame; meanwhile, a wire arrangement device is arranged on the pay-off frame. According to the invention, on one hand, the distribution line pay-off unit is provided with the brake device, and thus, the distribution line pay-off unit rotates by pulling out a brake control button so as to drive a brake rod to axially move, brake contact surfaces between the brake rod and the pay-off reel are in contact so as to implement brake of the pay-off reel and the distribution line pay-off unit has a simple structure and is convenient to brake; on the other hand, the distribution line pay-off unit is also provided with the wire arrangement device, so that a wire wound on the pay-off reel can be orderly arranged and the distribution line pay-off unit has the simple structure and is convenient to arrange the wire.

The invention discloses an automobile man-machine co-driving mode brake control system and a control method and belongs to the technical field of automobile manufacturing. The system comprises a brake-by-wire central control unit and a pedal travel switch connected with a brake through a brake control unit, wherein an input end of the brake-by-wire central control unit is correspondingly connectedwith output ends of the man-machine co-driving mode switch and an automatic driving controller, a relay and a pedal travel switch are sequentially connected between a relay power supply control end of the brake-by-wire central control unit and a loop ground end of an engine control unit, a switching signal sampling end of the engine control unit is connected with a common contact end of the relay, and the engine control unit is connected with a gearbox through a gearbox control unit. The system is advantaged in that a problem that the vehicle cannot be stably braked according to the requesteddeceleration in the automatic driving mode of the existing vehicle with both manual driving and automatic driving can be solved.

The invention relates to a radar anti-collision driving system. The system is characterized in that: two sides of the front part of an automobile are provided with anti-side collision laser range finders; the front part is also provided with sonar horns; a sonar transducer is connected with the back of the sonar horns; the sonar transducer is connected with a syndrome all-weather automobile signal processor through an amplifier and a diode detector; a thermal infrared imager is arranged in the front of a cab; a digital signal processor TMS 320240 is adopted in hardware of a driving expert control system and the hardware integrates high-speed signal processing capacity of a DSP and a peripheral circuit suitable for motor control into a whole to directly control speed reduction, steering and braking of the automobile; and a driving expert system adopts an artificial intelligent forward inference engine program and programs by using an artificial intelligent language, namely an LISP language or a MATLAB language. The all-weather automobile radar anti-collision driving system can realize all-weather precise measurement and positioning of targets in front of the automobile, and automatically adjust speed, steering, and braking to fulfill the aim of safe driving.

The invention relates to a controllable vehicle fuel-saving semi axle, characterized in that the invention uses inertia theory, arranges inside arc magnetic drawing claw engaged with a Z-type drawing rod with a positioning hole at middle, two symmetry arms of the drawing rod are limited by the axles on two arc drawing claws, the rotation axle of the drawing claw is fixed on a frame support, the clutch frame has a chamber containing a clutch one-way disc whose two sides are arranged with space without spiky, and rollers at angle end, to engage with the clutch, driving tooth and driven tooth, therefore, the invention can on-time control slide and brake, and save fuel, with simple structure, easy operation or the like.

The invention discloses a resistance adjusting mechanism of a magnetic control bodybuilding/competition vehicle. The resistance adjusting mechanism comprises a sleeve pipe, a brake screw, a limiting piece, a first nut, a bolt, a first pressure spring, a magnetic plate fixing frame and a magnet block. The sleeve pipe is mounted at the position, corresponding to an inertia wheel, of a vehicle frame.The first nut can be accommodated in the sleeve pipe in an up-down moving manner, and an anti-rotation structure is arranged between the first nut and the sleeve pipe, so that the first nut cannot rotate relative to the sleeve pipe. One part of the brake screw extends into the sleeve pipe and is matched with the first nut in a screwing manner. The limiting piece sleeves the brake screw and is positioned between the top of the sleeve pipe and the upper end surface of the first nut. The bottom end of the brake screw is in contact with the top end of the bolt. The first pressure spring is elastically propped between the top of the bolt and the bottom of the sleeve pipe. The lower end of the bolt is connected with the magnetic plate fixing frame with an arc-shaped bottom. The magnetic resistance acting on the inertia wheel by a magnetic plate assembly can be ensured to be uniformly distributed, so that the rotation smoothness of the inertia wheel is ensured.

A multifunctional movable garbage can comprises a can body, an axle, wheels and push handles; and the axle is arranged on the lower half part of the can body in a fixedly combining manner. The multifunctional movable garbage can is characterized in that a movable support base is formed by beveling the bottom of the garbage can, one end of the support base is fixed by a hinge, and the other end of the support base is fixed by a plurality of round lock catches; an inverted modeling dustpan serves as a garbage can top cover, and the side surface of the can body is provided with a device with a broom; and the wheels are a pair of solid ladder stand combined wheels and respectively sleeve two ends of the axle. The garbage can integrates a garbage cart, the broom and the dustpan into a whole, is narrow in shape, changes a traditional garbage inlet and outlet manner, and is suitable for operation of multiple cleaning occasions such as slopes, hollowed ground, step ground, parks, stations, high speed train carriages, and the like.

The invention discloses a double-drive speed regulation rotary table of a numerical control machine tool, and belongs to the technical field of numerical control machine tools. The rotary table comprises a rotary table seat and a rotary table frame rotationally connected to the inner side of the rotary table seat, a table body is mounted in the rotary table frame, and the table body is rotationally connected with a workbench; the rotary table also comprises a planet wheel mechanism, anda workbench is connected with a wheel carrier of the planet wheel mechanism; and a center wheel of the planet wheel mechanism is connected with a first power source, a gear sleeve of the planet wheel mechanism is connected with a second power source, and the workbench is driven to rotate through the first power source and/or the second power source. The two power sources and the planet wheel mechanism are coordinated to synthesize power to be input to the workbench, and control over the speed, torque and position of the rotary table workbench is achieved.

The invention relates to an automatic braking device and a rail transport vehicle with the automatic braking device. The automatic braking device is characterized by comprising a friction wheel, a first transmission gear, a second transmission gear, a centrifugal clutch and an eccentric wheel, wherein the friction wheel, the first transmission gear, the second transmission gear, the centrifugal clutch and the eccentric wheel are arranged below the vehicle and sequentially driven; the device further comprises a wedge-shaped piece and tension springs symmetrically arranged on the two sides of the wedge-shaped piece, the upper end of the wedge-shaped piece is rotatably connected below the vehicle, the upper ends of the tension springs are fixed below the vehicle, and the lower ends of the tension springs are fixed to the side face of the wedge-shaped piece; under the action of the tension springs, the wedge-shaped piece can be lifted to make contact with the eccentric wheel; and when theeccentric wheel is driven to rotate through a driven piece of the centrifugal clutch, the wedge-shaped piece is pushed down to rotate to be clamped between wheels and the ground. The automatic brakingdevice has wide application range and can be applied to the field of rail transport vehicles, not only is simple in structure, small in size, low in production cost, but also is capable of effectively realizing braking, and is high in reliability and safer.

The invention relates to winding braking, in particular to a low-voltage line winding braking device for an active power distribution network. The low-voltage line winding braking device for the active power distribution network comprises a supporting base, a brake disc and an air cylinder. The low-voltage line winding braking device for the active power distribution network is characterized in that an abrasion-resisting lamination is arranged on each of the two sides of the brake disc, and a supporting frame is arranged at the rear ends of the abrasion-resisting laminations and connected with an L-shaped connecting rod; two bosses are arranged on the supporting base and provided with shaft holes, and a shaft is arranged on the shaft holes and connected with two connecting rods; and the upper end of one connecting rod is connected to a piston rod of the air cylinder, the middle portion of the other connecting rod is arranged at the lower end of the piston rod, and the two abrasion-resisting laminations oppositely move to tightly hold the brake disc under driving of the piston rod. The low-voltage line device has the beneficial effects that the abrasion-resisting laminations on the two sides oppositely move to tightly hold the brake disc under driving of the piston rod to achieve braking, braking is stable and reliable, the braking device is arranged, so that the braking device is good.

The invention provides a powerful balance brake device comprising a brake drum, a bottom plate, a left brake shoe, a right brake shoe and cam mechanisms. The left brake shoe and the right brake shoe are oppositely arranged to form two pairs of opposite end faces, guiding holes are formed in the two end faces of the left brake shoe and the two end faces of the right brake shoe, and one cam mechanism is arranged between each pair of opposite end faces of the left brake shoe and the right brake shoe; and each cam mechanism comprises a cam shaft, a guide shaft and a cam, the cams are arranged on the cam shafts, through holes are formed in the middle portions of the guide shafts, the cam shafts penetrate through the through holes, one end of each guide shaft is inserted into the corresponding guiding hole of the left brake shoe, and the other end of each guide shaft is inserted into the corresponding guiding hole of the right brake shoe. The technical problems that the braking force is small and braking is not sensitive are solved.

The invention provides a powerful cam brake balancing device. The powerful cam brake balancing device comprises a brake drum, a bottom plate, friction plates, a left brake shoe, a right brake shoe andcam mechanisms, wherein the two ends of the left brake shoe and the right brake shoe are separately provided with butt blocks; the butt blocks are provided with cam holes; the left brake shoe is opposite to the right brake shoe to form two pairs of opposite ends; the butt blocks on each pair of opposite ends are arranged in an inner and outer staggered mode; each cam mechanism is arranged betweeneach pair of opposite ends; each cam mechanism comprises a camshaft, an inner cam and an outer cam, wherein the inner cam and the outer cam are separately fixed on the camshaft; the outer cams are eccentrically arranged relative to the inner cams; the outer cams are arranged in cam holes of the outer butt blocks; and the inner cams are arranged in the cam holes of the inner butt blocks. By meansof the powerful cam brake balancing device, the technical problems of low braking force and insensitive braking can be solved.

The invention relates to the technical field of bicycles, and discloses a multiple axle brake structure for a bicycle. The multiple axle brake structure comprises a brake spring cable, a steel wire rope is movably connected with the outer side of the brake spring cable, and a steel wire rope rotating shaft is movably connected with the end, away from the brake spring cable, of the steel wire rope;a connecting spring is movably connected with the outer side of the steel wire rope rotating shaft; a connecting axle center is movably connected with the end, away from the steel wire rope rotatingshaft, of the connecting spring; a brake arc-shaped arm is fixedly connected with the outer side of the connecting axle center, and a bearing block is fixedly connected with the end, away from the connecting axle center, of the brake arc-shaped arm; a bearing axis is arranged in the bearing block, and the end, away from the brake arc-shaped arm, of the bearing block is fixedly connected with an inhaul cable; and a mounting spring is movably connected with the outer side of the inhaul cable. According to the multiple axle brake structure for the bicycle, pressing springs are arranged on the inner sides of axle brake blocks, buffering force during braking is provided when the axle brake blocks abut against wheels for braking, and the situation that impact force is too large in the braking process is avoided.