36results about How to "Extended braking time" patented technology

A wireless braking and turning indicator attached to a motorcycle helmet and a motorcycle mounted transmitter is herein disclosed. An illumination assembly is attached on the rear surface of the helmet by means of either double-sided adhesive or an elastic band. An integral wireless receiver powered by a rechargeable battery receives a signal from a transmitter mounted on the motorcycle and electrically connected to the brake and turn signal indication circuits. In such a manner, the helmet-mounted light assembly will illuminate whenever the motorcycle brakes are applied in much the same manner as a center-mounted high brake light on motor vehicles. Turning direction is also indicated in like manner. When used, the rider's head is at a sufficient elevation to be easily seen by following traffic.

The invention provides a control method for static-state holding brake of a locomotive. The method comprises steps as follows: triggering a static-state holding brake instruction under the condition that the static-state holding brake of the locomotive is available; controlling an air inlet to be powered on and an air outlet to be powered off according to the static-state holding brake instruction to form an air charging passage at the air inlet, and closing the air outlet to forbid exhaust; charging main air into the air charging passage; detecting the pressure of the main air charged into the air charging passage, and stopping charging the main air and closing the air charging passage if the pressure of the main air reaches a first preset threshold; comparing the pressure of the main air charged into the air charging passage with the pre-control pressure, and enabling the locomotive to obtain a static-state brake force larger than that under the normal brake condition if the pressure of the main air is higher than the pre-control pressure. With the adoption of the control method for static-state holding brake of the locomotive, the brake time of the locomotive can be effectively prolonged, so that the locomotive can obtain the static-state brake force larger than that under the normal brake condition.

The invention discloses an electromagnetic retarder capable of energy recovery. The electromagnetic retarder comprises a stator, a rotor, a power electronic module and a transmission shaft, wherein the power electronic module is connected with the rotor via a reversing valve. The retarder is characterized in that the stator is arranged in the stator, and a gap exists between the rotor and the stator; the stator comprises a stator support, a generating armature, a liquid cooling isolation module and a cylinder which bears eddy current, and the stator support is connected with the transmission shaft via a bearing; the liquid cooling isolation module is arranged between the generating armature and the cylinder; the generating armature comprises a generating armature winding and a generating armature iron core, is connected with the stator support; and the rotor comprises a rotor support, an excitation winding and an excitation iron core, and the rotor support is connected with the transmission shaft, and the excitation winding. The electromagnetic retarder capable of energy recovery is simple in structure, small in size and high in braking capability.

The invention discloses a motor with an electromagnetic brake. The motor comprises a casing, a pair of main brake mechanisms, a pair of auxiliary brake mechanisms and a driving mechanism. The drivingmechanism is arranged at one end in the casing and comprises a rotating shaft, a brake turntable, a driving stator and a driving rotor; each auxiliary brake mechanism comprises a brake pressing block,a first spring, a fixing base and an electromagnet block. Each main braking mechanism comprises a braking chuck, a sliding rod and a first annular electromagnet. According to the invention, through the electromagnetic power-on and power-off and magnetic force change, brake chucks, brake pressing blocks and brake pressing rings effectively carry out bidirectional or multidirectional comprehensivefriction brake on the brake chucks; the braking of the motor brake turntable in the light braking state and the heavy braking state is achieved, the abrasion to a braking disc when hard braking is conducted through magnetic force changes in traditional heavy braking operation is avoided, the service life of the brake turntable is prolonged, and the motor is suitable for popularization.

The invention provides an anti-falling hanging basket. The anti-falling hanging basket comprises a hanging basket body, a traction mechanism, a matched bracket and a hanging basket brake mechanism, wherein the traction mechanism is used for applying traction force to the hanging basket body to drive the hanging basket body to move in the vertical direction; the matched bracket is arranged at one side of the hanging basket body, and the matched bracket is equipped with a first matching structure; the hanging basket brake mechanism is movably connected to the hanging basket body; the hanging basket brake mechanism is equipped with a second matching mechanism; and when traction force disappears, a first eccentric pressing mechanism is used for applying eccentric pressing force extending towards the matched bracket to the hanging basket brake mechanism, so that the second matching structure is matched with the first matching structure to form a blocking structure for preventing the hanging basket body from falling. Compared with the prior art, the anti-falling hanging basket has the advantages that the blocking structure provides supporting force, the problems that an anti-falling brake in the prior art is limited in brake effect and is relatively low in load upper limit are overcome. The invention provides the anti-falling hanging basket which is safe and reliable, and is greater in loading capacity.

The invention provides a wedge brake, comprising a supporting body which is arranged outside a brake hub; the supporting body is an equilateral 2n-polygons, wherein, n is equal to 2-4; a pair of adjacent edges inside the supporting body and opposite edges of the adjacent edges are respectively provided with a set of brake components which consist of a wedge and a damping energy-accumulation device corresponding to the wedge; an electromagnetic valve is arranged between two adjacent wedges outside the supporting body; the brake can gain larger brake power under smaller structure; the brake power (moment) is decided by braked kinetic energy; the brake time is prolonged with the increasing of the damping; as the brake type is an active type, external brake forces are not needed; therefore, the wedge brake structure is simple, the energy resource is saved, the brake can be used for the braking of large power transmission such as ships and the like and the braking of small power transmission such as automobile and the like.

The invention belongs to the technical field of brakes, and particularly relates to a brake mechanism for an automobile, which comprises a brake disc, a hydraulic shell, a hydraulic column, a pressureapplying mechanism, a power mechanism and the like, wherein the quick brake mechanism of the invention is used for braking, and a friction wheel of the power mechanism is frictionally engaged with the brake disc, so that the power mechanism can supply power to the pressure applying mechanism, thereby shortening the distance between a third fixing plate and a fourth fixing plate, and increasing the pressure of the fourth fixing plate to a brake pad, to achieve the purpose of increasing the brake effect. In the case of sudden braking, the quick brake mechanism can shorten the braking time of the sudden braking in the traditional braking mechanism, and can stop more quickly after the automobile encounters an unexpected situation, thereby reducing the possibility that after a driver performssudden braking in the case of an unexpected situation, the automobile has accidental contact, and furthering protecting the safety of the driver. The invention has simple structure and good use effect.

The invention belongs to the field of nanotechnology, and particularly relates to a chemical-energy-driven nano motor, a power providing method thereof and a nano robot. The nano motor comprises a shell and metallic sodium; the upper portion inside the shell is provided with an oil layer, and the lower portion is provided with a water layer; an opening is formed in the upper portion of the shell,and the opening is covered with a semi-permeable membrane allowing gas to pass through; and the metallic sodium is detachably arranged on the inner wall of the upper portion of the shell, and the density of the metallic sodium is greater than that of the oil layer. According to the nano motor, a large amount of hydrogen released through reaction between the metallic sodium and water can be used asdriving force of the nano motor so that the motion rate of the nano robot assembled with the nano motor can be well guaranteed; and meanwhile, according to the chemical properties of the sodium element, the nano motor adopts different liquids to construct a double-layer reaction space, the reaction rate of sodium and water can be reasonably controlled by adjusting the ratio of the oil layer to the water layer, the safety coefficient of the nano motor in the operation process is improved, and the braking duration of the nano motor is effectively prolonged.

The invention discloses a motor braking device of an electric bicycle back-pedal brake mechanism. A mechanical part is designed with a middle shaft and a chain disk connecting frame which are in radial clearance rotating fit so that when the back-pedal middle shaft rotates reversely, the middle shaft and the chain disk connecting frame can carry out nonsynchronous relative rotation. A circuit part uses a photoelectric sensor, and the core is a luminophor designed in a camera obscura, a photosensor and a shading component controlled by the mechanical part. When a person pedals a bicycle backwards, the middle shaft drives the chain disc connecting frame to rotate reversely after certain delaying, in the process, a middle shaft shading body in the shading component and a light hole or a gap in a chain disk shading body changed to be overlapped from being staggered so that light rays emitted out by the luminophor can penetrate and be received by the photosensor, and then signals are emitted to brake a motor. Compared with an existing related magnetic induction braking products, the sensitivity and the reliability are high, the motor can be effectively braked, and cogent guarantee is provided for executing of back-pedal braking on the electric bicycle.

The invention provides a high-speed train and an emergency braking method and system for the high-speed train. On the basis of conventional braking, a main umbrella device and an air injection deviceare additionally arranged, the main umbrella device is not opened in the normal state, the air injection device is not started, and the aerodynamic configuration of the train is not affected; when anemergency situation occurs, different braking modes are correspondingly started according to different levels of the emergency situation, the wind resistance is greatly increased through the main umbrella device and the air injection device, the braking distance is greatly shortened, the braking effect and the train operation safety are greatly improved, the wind resistance braking mode saves energy and is environmentally friendly, and the mechanical wear of the train and rails is reduced. Obstacles are recognized and obstacle distances are detected based on a visual unit, different braking modes are started according to the obstacle distances, and intelligent and automatic braking under emergency conditions is achieved.

The invention discloses a vehicle brake control method based on dynamic and static judgment of an obstacle. The method comprises the following steps of step 101, detecting a distance difference deltadbetween a current vehicle and a front obstacle; step 102, acquiring a running distance d of the current vehicle; step 103, judging a dynamic state and a static state of the obstacle, namely comparingthe distance difference deltad with the running distance d by a comparison module, if the deltad is approximately equal to d, considering that the front obstacle is static and entering the step 104;if the deltad is less than d, considering that the front obstacle is dynamic and entering the step 105; step 104, carrying out static brake; and step 105, carrying out dynamic brake. The method is simple and reasonable in design; a computer identifies whether the front obstacle in a following process is a static obstacle or a dynamic obstacle according to a dynamic and static algorithm, the different brake time can be reserved according to the dynamic state and the static state of the front obstacle, the brake of the mechanism is performed, the premature or late braking is avoided, and the reliability of an automatic emergency brake system is improved.

The invention relates to the technical field of braking motors, in particular to a motor with a good braking effect, which comprises a machine body and a rotor rotationally connected in the machine body, a rotating shaft of the rotor extends out of one end of the machine body, and a braking device for braking the rotating shaft is arranged at the end part of the machine body. The braking device comprises a brake shell fixed to the machine body, a brake shoe arranged on the brake shell and used for abutting against the rotating shaft, an electromagnet arranged on the brake shell and used for attracting the brake shoe to be away from the rotating shaft, and an elastic piece arranged on the brake shell and used for driving the brake shoe to reset. One end of each brake shoe is hinged to the brake shell, the other end of each brake shoe is a free end, the number of the brake shoes is not less than three in the circumferential direction of the rotating shaft, and the free ends of the brake shoes are distributed in a spiral shape. The motor has the following effects that during braking, the influence on the brake shoe is reduced, shaking is reduced, and the braking effect is more stable.

The invention relates to a workstation of an open ended rotor spinning machine having a rotor driver. The rotor driver is provided with a rotor motor and a control device, wherein the control device comprises a power supply circuit; the power supply circuit is provided with a voltage input, a voltage output and a power supply unit; the voltage input is at least connected to the power supply unit in the process of producing and operating the workstation; the rotor motor is connected to the voltage output; and the rotor motor can be operated as an electric generator in order to brake under the action of the control device. According to the invention, the workstation is provided with at least another electrical load required by producing and operating the workstation, the circuit is arranged for providing a braking electric energy output in the braking period of the rotor driver to at least another electrical load, and at least another electrical load is arranged for consuming the energy. The invention also relates to a method for operating the workstation.

The invention discloses a push plate type clutch with a heat-dissipating function. The push plate type clutch comprises a fixed plate, a fixed rack, an air bag and a separation and reunion assembly, wherein the fixed plate comprises an upper fixed plate and a lower fixed plate, a driving gear ring is arranged on the lower fixed plate, the separation and reunion assembly and the air bag are arranged on the driving gear ring in a sleeving manner successively and are fixed through the upper fixed plate and a first fixed bolt, an inner gear ring is arranged on the fixed rack, and the inner gear ring is arranged on the separation and reunion assembly in a sleeving manner to connect the separation and reunion assembly to the inner gear ring. By matching the fixed plate, the fixed rack, the air bag and the separation and reunion assembly, a braking operation on a high power machine is achieved, and meanwhile, groups of air inlet channels penetrating the side wall of the inner gear ring are arranged on the inner gear ring, so that air cooling of the separation and reunion assembly is achieved to prevent a condition that a braking effect is reduced and a braking time is prolonged due to overheat of a metal plate and a friction sheet.

The invention discloses an elevator safety brake. The brake comprises a brake body composed of a base body, two brake arms, a screw, two braking shoe brakes, a brake disc, two spring bodies, a springscale, a brake rod, a plunger and an electromagnet. A secondary brake mechanism is arranged at the bottom ends of the two brake arms, the secondary brake mechanism comprises a secondary brake shoe, abrake pad, primary connecting arms, secondary connecting arms, an elastic bending mechanism and fixing bolts, the brake pad is arranged on the upper end surface of the secondary brake shoe, and the upper end surface of the brake pad is closely attached to the annular side surface of the brake disc. By adding the secondary brake mechanism to the device, when the brake is closed and the brake disc is encircled by the braking shoe brakes for braking, the brake arms are skillfully used, and the secondary brake mechanism is compressed to force the secondary brake mechanism to bend upwards to make contact with the annular bottom end surface of the brake disc to assist the brake disc for braking, so that the braking inertia force is evenly dispersed, and the braking effect is increased.

A vehicle configured to improve convenience of a driver by adjusting an automatic braking control time based on a situation around the vehicle when the vehicle is automatically braked and a control method thereof are provided. The vehicle includes a braking portion that obtains speed information of the vehicle and a first sensor that obtains information around the vehicle. A controller determines whether to perform automatic braking control of the vehicle based on the speed information of the vehicle. When the vehicle performs the automatic braking control, the controller calculates a collision possibility of the vehicle based on the information around the vehicle, and an automatic braking time of the braking portion based on the collision possibility of the vehicle.

The invention discloses an intelligent zebra crossing for preventing pedestrians from running the red light mistakenly, which comprises a shell, two zebra crossings are symmetrically arranged on the shell left and right, the shell is fixedly arranged on a road, a plurality of deceleration strips are uniformly arranged on the road along the length direction of the road, two monitors are fixedly arranged on two sides of the road, and the two monitors are connected with the shell. According to the invention, through the arrangement of the vibration device, when a red light is on, a pedestrian runs the red light by mistake, the pedestrian steps on the induction sheet, the sensor detects that the pedestrian is on the induction sheet, the knocking head rotates and then continuously knocks the vibration head, so that the vibration head continuously knocks the pedestrian, and the vibration head continuously knocks the pedestrian on the induction sheet. The vibration head drives the vibration column to vibrate after being knocked, the vibration column drives the induction part to vibrate, and the induction part plays a role in prompting pedestrians on the induction part after vibration is generated, so that the pedestrians are prevented from running the red light mistakenly.

This invention discloses a type of drum brake that can be used for automobiles, comprising a brake drum, one or more brake shoes, and one ore more brake cylinders. Its special characteristics are: the drum brake further comprises an ordinary gear train which comprises an annulus, one or more planetary gears and a sun gear. Here, the annulus is attached to the brake drum. The sun gear and a mounting shell of the brake shoes are attached to each other. The planetary gears are located between the annulus and the sun gear, and one ore more planetary gear axles of the respective planetary gears are affixed with one or more planetary carriers. By adopting the drum brake of this invention and the ordinary gear train, when the brake is applied, the brake shoes rotate in the opposite direction relative to the moving direction of the brake drum, thereby greatly reduce the braking distance and braking time.

The invention discloses an electric motor with an electromagnetic brake, which comprises a casing, a pair of main braking mechanisms, a pair of auxiliary braking mechanisms and a driving mechanism. The driving mechanism is placed at one end inside the casing, and the driving mechanism includes a rotating shaft. , a brake turntable, a drive stator and a drive rotor; the auxiliary brake mechanism includes a brake pressure block, a spring one, a fixed seat and an electromagnet block; the main brake mechanism includes a brake chuck, a slide bar and A ring electromagnet. The invention can effectively make the brake chuck, the brake pressure block and the brake pressure ring perform two-way or multi-directional comprehensive friction braking on the brake chuck through the electromagnetic power on and off and the change of the magnetic force, and realize the Braking under the two states of light brake and heavy brake of the motor brake turntable avoids the wear of the brake disc when the traditional heavy brake operation performs hard braking through magnetic force changes, and improves the service life of the brake turntable. It is suitable for promotion .

The invention discloses an accelerator brake device, comprising an accelerator device and a brake device; the accelerator device includes a first throttle lever, a second throttle lever, a rotating shaft, a first fixed rod, a second fixed rod, a first electromagnet, an iron sheet, The return spring and the auxiliary spring, the brake device includes a brake lever installed on the car body with one end rotating, a guide cylinder fixed on the brake lever, a push rod arranged in the guide cylinder and can move axially along the guide cylinder, and a brake vacuum booster The ejector rod, the gas spring arranged in the guide cylinder to push the push rod to move, the second electromagnet arranged outside the guide cylinder, the first through hole is opened on the wall of the guide cylinder away from the gas spring, the shell of the second electromagnet Fixed on the guide cylinder, the iron core of the second electromagnet can expand and contract in the first through hole. The beneficial effect of the invention is that the braking time is prolonged, the speed of the car is slowly decreased, the braking is relatively stable, and the brake can be used as an emergency brake for accidentally stepping on the gas pedal or as a short-term parking brake.

The invention discloses a hydraulic braking inertia booster for a high-power diesel vehicle. A speed reducer (12) is fixed on an automobile rear axle; an automobile transmission shaft (9) is connectedin series with a transmission shaft gear (10); a speed reducer input gear (11) is engaged with a transmission shaft gear (10); an inertia disc (5) is mounted on an output shaft of the speed reducer,and a cam disc (4) is suspended; a brake caliper (3) is fixed at the lower part of the cam disc (4); the inertia disc (5) is placed in an opening of the brake caliper (3); the brake caliper (3) is connected with a piston of a brake master pump (2); a piston connecting rod of the brake master pump (2) is connected with a brake pedal (1); a roller (8) is mounted in a groove of the cam disc (4); thevertex corner of a triangular plate lever (7) is fixed on the roller (8), and a base corner of the triangular plate lever (7) is connected with a piston push rod of a booster pump (6); the piston of the booster pump (6) is connected with brake split pumps. The hydraulic braking inertia booster has a sufficient force source to provide brake braking, advancing and retreating braking is flexible, fuel is not consumed during braking, and the braking efficiency and safety coefficient are good.