50results about How to "Realize the brake function" patented technology

An airplane hydraulic brake system comprises a hydraulic brake valve, a liquid-controlled conversion valve, an electro-hydraulic servo valve, an anti-slide control box and a speed sensor. The liquid-controlled conversion valve is mounted on a downstream hydraulic pipeline of the hydraulic brake valve, the electro-hydraulic servo valve is mounted on a downstream hydraulic pipeline of the liquid-controlled conversion valve, an electrical interface of the electro-hydraulic servo valve is electrically connected with the anti-slide control box through a shielding insulation wire, an oil inlet of the electro-hydraulic servo valve is in pipeline connection with an oil outlet of the liquid-controlled conversion valve, a brake opening of the electro-hydraulic servo valve is in pipeline connection with an oil inlet of a brake device of a brake airplane wheel, and an oil returning opening of the electro-hydraulic servo valve is in pipeline connection with an airplane oil returning pipeline through a hydraulic filler neck and a guide pipe. The airplane hydraulic brake system can meet the ever-growing airplane take-off line brake requirement, is reasonable in structure, easy and convenient to implement, and beneficial for reducing of burdens of a driver, conforms to the man-machine engineering principle and meanwhile the accident potentials caused by false-operation switching on of a take-off line brake switch are eliminated.

The invention aims at realizing electrification and numerical control of scooters, and discloses a numerically controlled electric scooter. The numerically controlled electric scooter comprises a motor, a driving module, a rotating speed detection module, a brake module, a display module, a button module, a power supply system and a microprocessor. The motor is utilized for transforming electric energy into mechanical energy so that slide wheels of a scooter are driven to rotate. The driving module is utilized for driving the motor to work effectively. The rotating speed detection module is utilized for detecting a current speed of the scooter. The brake module is utilized for brake. The display module is utilized for displaying a current rotating speed and a current system state. The button module is utilized for user data inputting. The power supply system is utilized for whole system power supply. The microprocessor is utilized for receiving and processing data input by users, controlling the driving module to drive the motor to work and controlling the display module to display. The numerically controlled electric scooter has the characteristics of low cost and fast response speed.

The invention discloses a ball mill for preparing a nano material, and relates to the technical field of nano material preparation. The ball mill comprises a cylinder, a first base, a driving structure and a brake mechanism, and is characterized in that milling balls are arranged in the cylinder, one end of the cylinder is fixedly connected with a connecting shaft, and the other end of the cylinder communicates with a feeding pipe; and a second bearing column is fixedly installed on one side of the top of the first base, a first bearing column is fixedly installed on the other side of the topof the first base, a second bearing is embedded in the second bearing column, and a first bearing is embedded in the first bearing column. According to the ball mill, in the feeding process, feeding is conducted through a relative spiral conveying function, discharging is conducted through an air flow guiding function in the discharging process, the feeding and discharging convenience is improved,through the ball mill, the acting force between the milling balls and the cylinder is increased, the powder milling effect is improved, the ball mill has the braking function, and the idle time is reduced.

The invention discloses an automobile brake override device which comprises an accelerator pedal and a brake pedal and is characterized by also comprising a connecting rod and a bracket, wherein the two ends of the connecting rod are connected with the accelerator pedal and the brake pedal respectively; and a rotation ball is arranged at the middle fulcrum of the connecting rod and movably connected with the bracket. The automobile brake override device disclosed by the invention can realize quick brake and short brake distance when the accelerator pedal is stepped on by mistake in emergency brake, is simple and reliable and convenient to mount and has wide applicability; and the original facility of the automobile is basically not changed, and the automobile brake override device is easy to popularize and use.

The invention relates to a wearable magnetic levitation walking assisting device which comprises a front wheel, a stand column, a backrest piece, a supporting piece, a magnet, a handle, a hand brake,a movable sitting plate, a frame, a brake piece and a rear wheel. The front wheel is connected to the bottom of the front end of the frame through the front wheel supporting frame. The bottom of the rear end of the frame is connected with the rear wheel through the rear wheel supporting piece. The stand column is installed in the middle of the side face of the frame. The top end of the stand column is connected with the backrest piece and one end of an edge protecting piece. The other end of the edge protecting piece is connected to the handle. The handle is inserted in the frame through a slot. One end of the supporting piece is installed in the middle of the backrest piece. The magnet is installed at the other end of the supporting piece. A person wearing the magnet stands below the magnet. A fixed sitting plate is installed on the top face of the frame and aligned with the movable sitting plate. The movable sitting plate is installed on a supporting base. The walking assisting device has the advantages that the rehabilitation of a patient can be assisted, and borne loads of the patient can be reduced.

The invention discloses automatic carrying equipment for food materials. The automatic carrying equipment comprises a bottom plate, a buffering air bag, a pushing device and a brake device, wherein the pushing device and the brake device are arranged at the top of the bottom plate; when materials are carried, a mechanical arm is started to enable a mechanical claw to start to place food materials in a material box, and when the food materials are placed, due to the gravity of the food materials, the material box slides downwards along the inner side wall of a buffering air bag, so that a fixing block drives a sliding block to slide towards the two sides through a connecting rod; a rotating rod rotates to drive a take-up roller to rotate, so that a pull rope begins to be wound on the take-up roller, winding of a first pull rope can pull a sliding plate to slide rightwards, material taking-out operation is facilitated, winding of a second pull rope can pull a brake rod upwards when a material box reaches the bottommost part, and a buffer air bag completely wraps the material box; the material box is buffered to a certain degree during transportation, the brake rod cannot be engaged with the gear, and a worker can conveniently transport food materials.

The invention relates to the technical field of safety devices of drilling machines, in particular to an emergency stop device of a drilling machine with a brake. The emergency stop device of the drilling machine with the brake comprises a normally open gas control valve, a gas source gas intake pipeline, a button gas switch and a brake gas cylinder, wherein a first normally open port of the normally open gas control valve is communicated with the gas source gas intake pipeline through a first pipeline; a second pipeline is fixedly connected to a second normally open port of the normally open gas control valve; a control port of the normally open gas control valve is communicated with the gas source gas intake pipeline through a third pipeline; the button gas switch is fixedly mounted on the first pipeline; the control port of the normally open gas control valve is communicated with the brake gas cylinder through a fourth pipeline; a reversing valve and a quick gas discharging valve are fixedly mounted on the fourth pipeline from right to left. The emergency stop device is reasonable and compact in structure and convenient to use; during the normal drilling operation, compressed gas provided by a gas source drives the drilling machine to operate through the normally open gas control valve; when the drilling machine needs to emergently stop, the button gas switch is pressed down, the compressed gas provided by the gas source enters the brake gas cylinder, a brake function is realized, and the safety of personnel and equipment is protected.

The invention relates to an independent pitch changing system and a pitch changing method based on electric effective damping, which belong to the technical field of wind power generation. Its pitch system is that each of the blades has an independent pitch device, and the pitch device includes a pitch controller, a pitch driver, an electric damper and a pitch motor, and the pitch drivers are connected to the pitch controller respectively. The motor and the electric damper, the pitch controller are connected to the pitch driver, and the three pitch controllers are respectively connected to the main control controller of the wind turbine. Each blade of the wind turbine of the present invention independently changes the pitch angle according to its own control law, and by dynamically adjusting the pitch angles of the three blades respectively, each blade can obtain a different target position, reduce the dynamic balance load, and The asymmetrical rotor load compensation reduces the flapping vibration of the blades by the wind and reduces the stress impact of the transmission chain. When the wind speed is high, the variable generator torque and independent pitch angle are output to reduce the wind rotor speed and electric power fluctuations, and at the same time reduce the torque peak of the gearbox.

The invention belongs to the technical field of herringbone ladders, and particularly relates to a herringbone ladder for building interior decoration. The herringbone ladder comprises a seat plate, pedals, a frame body, a swing mechanism, a spring and a supporting rod. According to the herringbone ladder, in the using process, a user sits on the seat plate to work, when the user needs to walk, the user only needs to step on a pressing plate, so that the pressing plate swings relative to a supporting plate, the pressing plate swings to drive the swing mechanism on the lower side to swing, and the herringbone ladder is driven to move in a swing mode. In the using process, a brake mechanism is controlled to carry out friction braking on walking wheels at the lower end of the herringbone ladder, so that the brake function of the herringbone ladder is achieved, and the herringbone ladder can be fixed and stopped when walking to a specific position. In the using process, a steering mechanism is used for controlling universal wheels at the lower end of the herringbone ladder to rotate, so that the steering function of the herringbone ladder is achieved, and the flexible application of the herringbone ladder in the using process is guaranteed.

The invention relates to a resistance-type perpendicular shaft wind turbine and a working method thereof. The wind turbine comprise a rotary drum connected with a generator, wherein the rotary drum can drive the generator to generate electricity through self-rotation; the rotary drum is connected with a plurality of pairs of fan blades through a cantilever frame structure; two fan blades in each pair of the fan blades are arranged at a 180-degree angle; the fan blades are connected with a distance changing mechanism; the distance changing mechanism can adjust the distance between the fan blades and the rotary drum; the fan blades comprise a plurality of wind blocking plates rotatably connected with a frame; and a netted limiting structure is arranged on one side of each wind blocking plateand fixedly connected with the frame. According to the wind turbine, the generating efficiency is high and constant power output of electric energy is achieved.

The invention relates to the technical field of brakes and discloses a bidirectional spring brake. The bidirectional spring brake comprises a brake cover with an inner accommodating cavity, an input spring pusher dog which is connected with a first input shaft of an external input device, an output spring pusher dog which is connected with a second input shaft of the external input device and springs which can be respectively clamped on the input spring pusher dog and the output spring pusher dog. The input spring pusher dog, the spring and the output spring pusher dog are sequentially arranged in the accommodating cavity. The bidirectional spring brake disclosed by the invention is a mechanism and can be used at an input device end and an output device end. The invention has the advantages of low cost, simple structure, high reliability and flexibility in use. The torsion is large during brake, and a brake function can be accurately realized in time. The torsion strength can be adjusted by the springs according to actual conditions. The invention further provides electric equipment comprising the bidirectional spring brake.

The invention relates to a brake mechanism for a baby carriage and the baby carriage. The brake mechanism for the baby carriage comprises a brake disc and a braking element used for braking a wheel, wherein the braking element is arranged on a carriage frame; and the braking element can move relative to the carriage frame. The brake mechanism also comprises an acceleration device, wherein the acceleration device is provided with an input end and an output end; the input end of the acceleration device is in fit joint with an axle of the wheel; the brake disc and the output end of the acceleration device are in fit joint; the brake device rotates along with the wheel through the acceleration device; and the rotating speed of the brake disc is higher than the rotating speed of the wheel through the acceleration device. When the brake mechanism is in a brake state, the braking element tightly clamps the brake disc; and when the brake mechanism is in a brake relieving state, the braking element is separated from the braking disc. The brake mechanism and the baby carriage have the advantages that the labor is saved during the braking; the braking is convenient; the structure is simple; and the braking is sensitive.

The invention provides an automatic unlocking storage tool coiling trolley. The trolley comprises a frame, a first transmission shaft, a second transmission shaft, a large I-shaped wheel 1, a small I-shaped wheel, a first fluted disc, a second fluted disc, a first self-locking assembly, a second self-locking assembly, a connecting rod and at least one driving motor. By means of the self-locking assembly, automatic unlocking and locking of the coiling guide trolley are achieved, manual unlocking or locking is completely abandoned, the structure of an existing trolley does not need to be changed, and only the self-locking assembly needs to be arranged on the trolley.

The invention discloses an electric vehicle brake device. The electric vehicle brake device comprises a hub frame and an arc-shaped hub track, the hub frame is provided with a sliding groove which ismatched with the hub track; the wheel frame is provided with a brake frame, the brake frame comprises a driving rod, and one end of the driving rod is the driving end and is connected with a driving device; and the other end of the driving rod is movably connected to the hub frame and extends outward with brake rubber-block, the shape of the brake rubber-block is matched with the hub track and isclose to the hub track, and a gap is formed between the brake rubber-block and the hub track. The electric vehicle brake device is simple in structure, practical, low in cost, easy to mount and replace and fast in heat dissipation.

An airplane hydraulic brake system comprises a hydraulic brake valve, a liquid-controlled conversion valve, an electro-hydraulic servo valve, an anti-slide control box and a speed sensor. The liquid-controlled conversion valve is mounted on a downstream hydraulic pipeline of the hydraulic brake valve, the electro-hydraulic servo valve is mounted on a downstream hydraulic pipeline of the liquid-controlled conversion valve, an electrical interface of the electro-hydraulic servo valve is electrically connected with the anti-slide control box through a shielding insulation wire, an oil inlet of the electro-hydraulic servo valve is in pipeline connection with an oil outlet of the liquid-controlled conversion valve, a brake opening of the electro-hydraulic servo valve is in pipeline connection with an oil inlet of a brake device of a brake airplane wheel, and an oil returning opening of the electro-hydraulic servo valve is in pipeline connection with an airplane oil returning pipeline through a hydraulic filler neck and a guide pipe. The airplane hydraulic brake system can meet the ever-growing airplane take-off line brake requirement, is reasonable in structure, easy and convenient to implement, and beneficial for reducing of burdens of a driver, conforms to the man-machine engineering principle and meanwhile the accident potentials caused by false-operation switching on of a take-off line brake switch are eliminated.

The invention discloses a novel truck safety early warning braking system. The truck safety early warning braking system includes a front part and a carriage part, and the carriage part can be bootstrapped to support the front of the truck to change the trailer, and the front automatically collects relevant parameters of the trailer after changing the trailer , the device of the present invention can automatically remind the driver when the truck is turning, and can also project a warning line and a dangerous area on the ground to remind the driver and passers-by beside the truck to avoid in time, and automatically brake when danger occurs, increasing the safety of the truck. active safety features.