153results about How to "Realize the braking effect" patented technology

The invention relates to a hydrostatic drive (1) and a method for braking a hydrostatic drive (1). In the hydrostatic drive (1), a hydraulic pump (3) is connected to a hydraulic motor (4) by means of a first and a second working line (11, 12). The hydrostatic drive (1) comprises a brake actuating device (37) on at least one pressure relief valve (26, 30) which is connected to the working line arranged downstream of the hydraulic motor (4). The brake pump volume of the hydraulic pump (3) can be regulated upon detection of an actuation of the brake actuation device (37). The hydraulic motor (4) is regulated according to the actuation intensity of the brake actuation device (37) in order to achieve larger absorption volumes, when the actuation intensity of the brake actuation device (37) increases.

The invention discloses a novel brake system. The novel brake system comprises a brake clamp, a brake disc and a brake module; the brake clamp is provided with a circular-arc cavity structure; the brake module comprises a first brake assembly and a second brake assembly which are located in the cavity structure of the brake clamp, the first brake assembly is used for braking the disc face of the brake disc, and the second brake assembly is used for braking the edge face of the brake disc; the brake system can effectively achieve braking during stopping or parking, in the vehicle driving process, the good brake effect can be achieved, and the system has the few parts and is simple in structure; a brake device of the system is easy to observe and convenient to overhaul, heat generated during brake can be directly dissipated to the air, and stability and brake efficiency of the brake system are improved.

The invention relates to a regenerative energy controller for an electric vehicle, which includes a main control chip, which respectively receives signals from a brake handle controller, an automatic control and a manual controller, an overcurrent and overvoltage protection circuit, and a voltage stabilization circuit, and is characterized in that it also includes: Two-way switch circuit, which is controlled by the main control chip, connected to the constant voltage and constant current charging circuit and boost circuit, as well as the battery and the boost circuit; boost circuit, which is controlled by the main control chip, connected to the motor controller and the switch circuit; The output control signal of the control chip is respectively connected to the bidirectional switch circuit and the boost circuit. After adopting the booster circuit, it can be artificially adjusted to a wide range of voltage from 10-25 volts to effectively use regenerative power to charge the battery. As long as the circuit detects that the vehicle has a red light, turns, or brakes when it is foreseen to stop, it can drive at high speed. When the vehicle is in a downhill state, the circuit is automatically converted into a charging state, which not only makes full use of the regenerative power, but also better achieves the braking effect on the wheels.

The present invention relates to a method for activating a brake device of a vehicle, in particular of a rail vehicle for high-speed operation, in which, in a determination step, at least one actual deceleration signal which is representative of a current actual decleration of the vehicle (101) in a longitudinal direction of a vehicle and is independent of an operating state of the brake device (107) of the vehicle (101) is determined and, in a comparison step, the actual deceleration signal is compared with a predeterminable desired decleration signal, wherein the desired deceleration signal is representative of a currently predetermined desired deceleration of the vehicle (101), and, in an actuating step, at least one brake unit (105, 106) of the brake device (107) is activated depending on the result of the comparison step in order to assist a braking action of the brake device (107). The actual deceleration signal is determined in the determination step using a plurality of component signals which are independent of one another, wherein each component signal is representative of the current actual deceleration of the vehicle (101) in the longitudinal direction of the vehicle.

The invention relates to the technical field of rail vehicle braking and discloses an axle-mounted brake device for a gauge-changeable wheel set. The axle-mounted brake device for the gauge-changeablewheel set comprises a transitional sleeve, a locating mechanism and a plurality of axle-mounted brake discs; the plurality of axle-mounted brake discs are fixed on the transitional sleeve at intervals; the transitional sleeve is connected with an axle of the gauge-changeable wheel set through a spline in a matched manner; and the locating mechanism is used for connecting the transitional sleeve with the axle so as to axially locate the transitional sleeve relative to the axle. According to the axle-mounted brake device for the gauge-changeable wheel set, by improving the connection modes between the axle-mounted brake discs and the axle, the relative positions of a brake clamp and the axle-mounted brake discs can be kept invariable during changing the gauge so that braking effects at different gauges are realized.

The invention discloses a novel floating caliper disc brake which comprises a brake disc and a brake caliper. The brake caliper on the right side of the brake disc is provided with a piston chamber and a shaft hole, and an electric push rod passes through the shaft hole. A smart encoder that precisely controls the stroke of the electric push rod is mounted on the electric push rod. According to the scheme, a mode of driving a piston by the electric push rod is adopted, and the problem of sealing and oil leakage of a traditional brake does not occur. At the same time, the smart encoder on the electric push rod can accurately control the displacement of a movable brake block and avoid the excessive friction between the movable brake block and the brake disc. After a long period of work, wearoccurs on the surface of the brake disc, and the smart encoder can also well control the displacement of the movable brake block to continue braking. In addition, both sides of the movable brake block and a fixed brake block are provided with damping pieces, the braking vibration and noise can be effectively reduced during braking, and thus the brake according to the scheme is simple in structureand high in reliability.

The invention discloses an electrified fastening antivibrator bolt insulation torsion wrench. The electrified fastening antivibrator bolt insulation torsion wrench comprises a sleeve with an inner hexagonal cavity and insulation discs provided with a handle respectively and used for driving the sleeve to rotate; a ratchet is arranged at the outer surface of the middle of the sleeve; an annular insulation gasket is fixedly sleeved outside the ratchet; the insulation discs are respectively arranged at two sides of the insulation gasket; the insulation discs are of a driving insulation disc and a support insulation disc respectively; the driving insulation disc is hinged to a pawl matched with the ratchet; the driving insulation disc, the support insulation disc, the insulation gasket and the sleeve are movably connected; the handle of each of the driving insulation disc and the support insulation disc is connected with a lengthened insulation arm. The electrified fastening antivibrator bolt insulation torsion wrench can be electrified for operation, multiple inconveniences of a user caused by the power outage operation are avoided, the operation is easy, the safety is high, and the reliable operation of a power system and the personal safety of operation personnel are ensured.

In a method for operating a motor car with a driving engine, the driving engine is an internal combustion engine. The method involves detecting the traveling speed of vehicle and an operation of a speed control unit. The driving mode is automatically selected. The sail mode above the minimum speed of the sailing mode during non-operation state of the speed control unit is selected. The roll mode above the maximum speed of sailing mode, during non-operation state of the speed control unit is selected. The invention also relates to a driving system of the motor car.

The invention discloses a non-machine-room elevator speed limiter which comprises a support. A speed limiter switch is installed at the upper portion of the support. A reset screw driving the speed limiter switch to reset is arranged on the speed limiter switch. A rope sheave assembly is arranged in the support. A braking assembly is arranged on one side of the rope sheave assembly. The non-machine-room elevator speed limiter further comprises a stop block assembly which is hinged to the side wall and is used for triggering the braking assembly to work. A pendency body assembly is further arranged in the rope sheave assembly. A driving rod stretching out of a side plate is arranged on one side of the stop block assembly. The non-machine-room elevator speed limiter further comprises a mechanical triggering resetting mechanism driving the driving rod to move and an electrical resetting mechanism driving the reset screw to move so that a speed limiting switch can to reset operation. Whenthe non-machine-room elevator speed limiter conducts braking detection, even if the speed limiter does not exceed the limiting speed, remote triggering, resetting and other operation can also be conducted by manually pulling a brake cable, people do not need to get close to the speed limiter for operation, and therefore safety of braking detection is increased.

The invention provides an eddy current braking device and a braking method thereof, and relates to the technical field of magnetic suspension braking devices. According to the application, when the magnetically levitated train in high-speed running needs to be braked, the driving motor works, so that the lifting mechanism pushes the magnet seat outwards and gets close to the induction plate, and the suspension framework moves to drive the magnet seat to move in the extension direction of the magnetic track; the induction plate fixedly arranged on the track base generates eddy current due to the fact that the induction plate cuts magnetic induction lines of the permanent magnet on the magnet base, the eddy current generates Lorentz force under the action of the magnetic field of the permanent magnet to serve as braking force, and the magnitude of the braking force can be controlled by adjusting the spacing distance between the induction plate and the magnet base. The permanent magnets are adopted to replace electromagnets for excitation, no heat effect is generated, redundant loss of parts caused by unnecessary heat loads is reduced, and the service life of the parts is prolonged. And an additional power supply is not needed to provide an electromagnetic field, so that a large amount of power is saved, and the weight of suspension equipment on the bogie is greatly reduced.

The invention discloses a self-reinforcing drum brake with a ventilating and cooling device. The self-reinforcing drum brake comprises a brake drum, a first brake shoe and a second brake shoe. An air cylinder is arranged on the first brake shoe. One side of the first brake shoe can abut against a piston of the air cylinder. An ejector rod is arranged on the other side of the first brake shoe. One end of the ejector rod abuts against the first brake shoe, and the other side of the ejector rod abuts against the second brake shoe. The other side, abutting against the ejector rod, of the second brake shoe is hinged to an external rack and provided with a tension spring. A plurality of cooling holes are formed in the first brake shoe and the second brake shoe. According to the scheme, the self-reinforcing drum brake has the beneficial effects that the cooling holes are additionally formed in the brake shoes, then heat generated under the action of friction force of the brake shoes can have a larger cooling area, the temperature of the brake shoes is kept within a proper range, and the stability and reliability of the work performance of the brake are improved.

The invention discloses a mechanical double-acting disc brake. The mechanical double-acting disc brake comprises a disc plate and a calliper, wherein the calliper comprises a shell, a support and a connection component; a drive arm and a drive plate are arranged on the shell; a drive component used for converting the rotary motion of the drive arm to the axial motion of the drive plate is connected between the drive arm and the drive plate; a first friction sheet is installed on the end surface of the drive plate; a second friction sheet is installed on the shell; the disc plate is arranged between the first friction sheet and the second friction sheet; the connection components comprises a connection seat which is movably connected to the shell and capable of axially moving relative to the drive plate, an annular bulge edge is arranged at one end close to the drive component, of the drive plate; and an elastic gasket is arranged between the connection base and the annular bulge edge. According to the mechanical double-acting disc brake disclosed by the invention, the two friction sheets can move towards the disc plate simultaneously, and the deformation of the disc plate is not required during braking, thus obstruction on the normal running of a vehicle due to the deformation of the disc plate can be avoided.

The invention discloses a multi-functional creeper for automobile repair. During usage, a repairer slides to the bottom of an automobile firstly and then presses down brake handles so as to achieve the effect of braking of sliding wheels; meanwhile, in the automobile repair process, the repairer can pull repair boxes to appropriate positions; the repairer can also operate illuminating lamps to achieve effective illumination at the same time; and under the situation that the repairer needs to raise the head, the repairer can pull up push handles firstly so as to enable clamping boards to slide out of clamping grooves and then make the push handles slide towards a rotating board along push holes so as to enable push rods to jack up the rotating board, and accordingly the head of the repairer is raised finally. By means of the multi-functional creeper for automobile repair, the repairer not only can conveniently control the creeper to move and stop, but also can conveniently take repair tools, and effective illumination can be achieved by means of the illuminating lamps when the repairer cannot clearly see a repair position, so that conveniences are brought to the repairer and meanwhile the work efficiency of the repairer is also greatly improved.

The invention relates to the field of buildings and particularly relates to a precise building mold support frame system for reinforcing building templates and a use method thereof. The precise building mold support frame system for reinforcing the building templates comprises a line frame unit, a beam bottom support frame, a stress clamping device, a loquat support frame, a cable stayed frame and a moving device capable of being braked. The precise building mold support frame system for reinforcing the building templates can conveniently realize the support and fixing effects on various templates built in the building construction, simultaneously, the structure is simple, the efficiency is high, and the practicability is realized.

The invention relates to an electric brake system (1) for vehicle, specifically relates to an electromechanical brake system (2), comprising at least one brake circuit (3, 4). The brake circuit comprises at least one first control unit (5, 6) for converting the braking requirement of a driver to a triggering signal, and second control units (13,15; 14,16) respectively matched to wheel brakes (17,19; 18,20) of a vehicle and processing the triggering signal. The first control unit (5,6) comprises at least one local energy memory (21,22).

The invention relates to an automobile disk-type braking method and a device based on motor drive. The device has simple structure and can realize larger motor output force gain. The invention has the technical scheme that power output by the motor drives a braking piston to move after boosted by two stages of a gear engaging mechanism and a boosting lever, so that a braking block tightly presses a braking disc to brake automobiles.

The invention belongs to the field of flat cars, and particularly relates to a rail flat car with the locking function. The problem that when a traditional flat car is braked, under the inertia effect, the flat car continuously slides along with a rail is solved. The rail flat car comprises a flat car body and a rail arranged on the bottom of the flat car body; the bottom of the flat car body is connected with a rotating shaft through a bearing pedestal, the two ends of the rotating shaft are fixedly sleeved with rollers, mounting grooves formed in the bottom of the flat car body are formed inthe tops, close to each other, of the two rollers, driving mechanisms are arranged on the inner side walls of the sides, close to each other, of the two mounting grooves, the ends, away from each other, of the two driving mechanisms are connected with a push plate in sliding connection with the inner side walls of the tops of the mounting grooves, locking mechanisms are arranged on the bottoms ofthe push plates in a collision manner, and the sides, away from each other, of the two push plates are provided with push rods. The brake effect on the flat car is achieved, the flat car can be rapidly braked, during brake, the flat car and the rail are clamped, and the phenomenon that when the flat car is parked, due to the inertial effect, the flat car continuously slides along with the rail isavoided.

The invention discloses a pneumatic brake. The pneumatic brake comprises an air cylinder base and an air cylinder cover, wherein the air cylinder base is provided with an air source interface; a pressing plate and a compression spring are installed in the air cylinder base; the compression spring is connected with a spring ejector plate; a sealing sheet is arranged between the pressing plate and the spring ejector plate; the lower end of the air cylinder base is connected with a sleeve; an ejector rod is arranged inside the sleeve; the sleeve is fixed to the air cylinder base; the other end of the sleeve is fixed to a brake frame; the brake frame comprises an upper brake block and a lower brake block; two brake screws are fixed to the upper brake block and the lower brake block respectively; a brake spring is arranged between the upper brake screw and the lower brake screw. An air source is utilized for accurately controlling the upper brake block and the lower brake block to be folded and unfolded, so that a high-speed tubular strander brakes, and the effect of shutting down the tubular strander immediately is achieved.

The invention relates to the technical field of braking force control, and provides a signal generating method and controlling method of eddy current retarder braking force. The method includes the steps that an automobile load parameter is detected, a mass center location parameter is calculated at the same time, then, a signal parameter calculation formula of the eddy current retarder braking force is generated according to change information of the braking force distribution requirement for mounting a double-axle automobile front axle and a double-axle automobile rear axle by an eddy current retarder, afterwards, vector calculation is carried out on the signal parameter calculation formula of the eddy current retarder braking force, and the distribution ratio of the maximum braking force, the minimum braking force and main brake braking force is acquired. According to the signal generating method and controlling method of the eddy current retarder braking force, a set of eddy current retarder braking force calculation formula and signal generating method based on a load is formed, the brake performance of an automobile under various loads can all meet corresponding regulation requirements, and meanwhile the driving safety performance of the automobile is also improved.

Provided are an electric brake system and an operating method thereof. The electric brake system includes a master cylinder to discharge a pressurized medium in accordance with displacement of a brakepedal, a simulation device to provide a driver with a pedal feeling, a hydraulic pressure supply device to generate a hydraulic pressure by operating a hydraulic piston in accordance with an electrical signal output in response to the displacement of the brake pedal, and a hydraulic control unit to control a hydraulic pressure of the pressurized medium supplied to each wheel cylinder. The electric brake system may perform a normal mode, an abnormal mode, and an inspection mode.

The invention relates to a permanent magnet synchronous direct-drive lifting machine with a gear. A built-in multi-disk braking permanent magnet motor as a prime motor to drive a drum of the lifting machine to rotate; the inner wall of the drum is provided with an inner gear ring; a driving output gear of a drum driving device is meshed with the inner gear ring of the drum; a multi-disk braking device is arranged in the rear portion of a rotor of the built-in multi-disk braking permanent magnet motor; a braking disk combination is pushed by a braking elastic device to form braking during non-energization; the braking force applied to the braking disk combination due to the braking elastic device is relieved through a gate opening power device after energization. According to the permanent magnet synchronous direct-drive lifting machine with the gear, the weight is light, the size is small, the speed adjustment range is wide, the operation and the control are convenient, the use is safe and reliable, and the manufacturing cost and the operation cost can be significantly reduced.

The invention relates to a built-in multiple-disk braking permanent magnet motor, a multiple-disk braking device is arranged in the rear part of the rotor of the built-in multiple-disk braking permanent magnet motor, the multiple-disk braking device comprises a rotating drum, braking drum, a brake disc assembly, an elastic force device and a power plant, a dynamic brake disc and a static brake disc in the brake disc assembly are in stagger distribution, the dynamic brake disc is flexibly connected with the rotating drum in the axial direction, the static brake disc and the braking drum move in the axial direction, the elastic force device is positioned on the rear side of the brake disc assembly and provided with a spring / spring assembly that applies forward thrust to the brake disc positioned on the aftermost side, the rotating drum is fixedly installed on the inner wall of the drum-like segment of the rear part of the rotor or directly adopts the drum-like segment of the rear part of the rotor, and the rear end of the basal body of the power plant is fixedly connected with a rear end cover. The multiple-disk braking permanent magnet motor has a braking function, and can remarkably simplify the whole structure and reduce the whole volume, the manufacturing cost and the operating expense when applied to a crane and other equipment.

The invention discloses a machine tool assisted mobile device for a numerically-controlled machine tool. The machine tool assisted mobile device comprises a fixed chassis for placing the numerically-controlled machine tool, a brake base for braking the numerically-controlled machine tool and a moving base for assisting the movement of the numerically-controlled machine tool. A hydraulic damping mechanism for reducing the vibration of the numerically-controlled machine tool is arranged between the fixed chassis and the brake base, a hydraulic brake mechanism for controlling the movement of thenumerically-controlled machine tool is disposed between the brake base and the moving base, and the movable base is provided with a plurality of rolling members which can rotate arbitrarily. The arrangement of the hydraulic damping mechanism enables the numerically-controlled machine tool to obtain effective cushioning under working conditions, the vibration generated when the numerically-controlled machine tool works is reduced, the noise generated by the vibration is reduced, the comfort of the working environment is improved, the hydraulic brake mechanism and the rolling members are arranged to enable the numerically-controlled machine tool to be moved easily, the efficiency for moving the numerically-controlled machine tool is improved, immediate braking can be further performed, and the automatic movement of the numerically-controlled machine tool is avoided.

The invention discloses a box-type substation with a relay protection function. The box-type substation comprises a box body and a box door arranged on the front face of the box body. The box body isprovided with a low-voltage chamber, a voltage transformation chamber and a high-voltage chamber in sequence; a low-voltage assembly in the low-voltage chamber is connected with a voltage transformation assembly in the voltage transformation chamber through a relay; the voltage transformation assembly in the voltage transformation chamber is connected with a high-voltage assembly in the high-voltage chamber; the relay is arranged in a relay maintenance chamber between the low-voltage chamber and the voltage transformation chamber; open sliding grooves are transversely formed in the two side walls, right facing the low-voltage chamber and the voltage transformation chamber, of the relay maintenance chamber; a maintenance door communicated with the relay maintenance chamber is formed on theback face of the box body; and the relay slides along the open sliding grooves. According to the scheme, the relay is independently installed in the relay maintenance chamber, so that the relay can befrequently maintained for multiple times conveniently, the relay is prevented from being searched and maintained in the whole transformer assembly, and the relay maintenance work is simple and convenient.

The invention discloses a machine room elevator speed limiter which comprises a support. A speed limiter switch is mounted on the upper portion of the support. A rope wheel assembly is arranged in thesupport. A brake assembly is arranged on one side of the rope wheel assembly. The machine room elevator speed limiter further comprises a stop block assembly hinged to the side wall and used for triggering the brake assembly to work. Overhang assemblies for driving the stop block assembly to rotate are further arranged in the rope wheel assembly. A drive rod stretching out of a side plate is arranged on one side of the stop block assembly. The machine room elevator speed limiter further comprises a mechanical trigger reset mechanism for driving the drive rod to move. According to the machineroom elevator speed limiter, during brake detection, even though the speed limiter does not exceed the limited speed, remote trigger, reset and other operation can be carried out in a manner of manually pulling a brake cable, and therefore a worker does not need to approach to the speed limiter for operation, and safety during brake detection is increased.

The invention discloses dual-power energy-saving winching equipment for a building. The equipment comprises a rack, a reducer, a brake, a coiling block and a steel wire rope. The reducer is mounted onthe rack, the brake is arranged on one side of an input end of the reducer, two ends of the coiling blocks are rotatably mounted on the rack and penetrate the side wall of the rack, separately, and one end of the coiling block is connected to an output end of the reducer. By arranging a dual-power output mechanism on the rack, the coiling block can be controlled separately. When the first power structure fails, an operator stops the equipment and connects a second power structure quickly to provide power to the whole equipment, so that normal operation of a construction operation is guaranteed, the work efficiency is improved and the energy consumption is reduced. Meanwhile, a contact type brake mechanism is arranged on one side of the coiling block to brake the coiling block, so that thesafety of operation of a main body of the winching equipment is improved.

The invention relates to the technical field of fabric detection, in particular to an infrared fabric detection device. The device comprises a control console and a detection device. A transmission mechanism is arranged on the control console; one end of the control console is provided with a storage box used for feeding and storing fabric; the detection device is arranged above the transmission mechanism and comprises straight rods, which are fixed to the two sides of the control console respectively. The straight rods are perpendicular to the control console; a sliding device is arranged oneach straight rod; and an infrared probe is arranged on the straight rod and used for detecting the fabric. According to the fabric detection device, the fabric is detected by adjusting the position of the infrared probe; and the fabric does not need to be cut and trimmed when the fabric with different materials and sizes passes through the detection device, so that the detection is more time-saving and labor-saving, and the fabric detection efficiency is greatly improved.