33results about How to "Increase braking force" patented technology

A brake system includes: a brake actuating element; a first piston-cylinder unit having a first piston displaceable by the brake actuating element actuated by at least a predefined minimum actuation such that a first internal pressure in the first piston-cylinder unit is increased; at least one wheel brake cylinder having a brake pressure which is increased using the increased first internal pressure; a first brake booster; and a second piston-cylinder unit having a second piston displaceable by the first brake booster so that a second internal pressure in the second piston-cylinder unit is increased, and to which the at least one wheel brake cylinder is hydraulically connected such that the brake pressure of the at least one wheel brake cylinder is increased by the increased second internal pressure.

The present invention is spring driven energy accumulating starting device and method for automobile. The spring driven energy accumulating starting device set onto the rear axle assembly can convert the heat energy of braking friction into potential energy stored in the elastic steel ring, convert the elastic potential energy of starting into the kinetic energy to drive the rear wheels, recover and utilize the energy consumed in the frequent stopping and starting, and raise braking performance and safety. The spring driven energy accumulating starting device possesses one potential energy storing device including sealed container and spring box; one kinetic energy absorbing and potential energy releasing device including outer shaft, inner shaft and rolling bearing in between; and one speed variator with potential energy inputting gear set and potential energy releasing gear set.

A self-energized disk brake assembly includes gain stabilization features for controlling the multiplication of applied force against a rotatable brake member. The brake assembly includes a first brake pad supported about a first pivot and a second brake pad supported about a second pivot. An actuator applies a force to drive the brake pads into the rotatable brake member. Frictional force between the brake pads and the rotatable brake member pulls the brake pads into further engagement generating an increase in braking force from self-energization. A position of the first and second pivots is adjustable to control the amount of braking force generated from self-energization.

A brake device can prevent deterioration of braking force by applying a predetermined pressure in the drive hydraulic pressure chamber even when an electric system failure occurs. The brake device includes a stroke simulator portion, regulator, a first passage connecting the accumulator and the high pressure port of the regulator, a second passage connecting the reservoir tank and the low pressure port of the regulator, a third passage connecting the stroke simulator portion and the pilot pressure input port of the regulator, a fourth passage connecting the drive hydraulic pressure chamber and the output port of the regulator and a fifth passage connecting the accumulator and the drive hydraulic pressure chamber bypassing the high pressure port. The normally open type pressure decrease control valve is provided in the second passage or in the fourth passage whereas the normally closed pressure increase control valve is provided in the fifth passage.

A method for braking a vehicle which is operable by a motor or by muscular power, in particular an electric bicycle. During a braking operation, a brake force influencing device is controlled by an electric brake pressure control device, and the brake pressure for the front wheel brake and / or for the rear wheel brake, and thus the brake force thereof, is increased and / or decreased. The brake pressure control device receives brake pressure signals in each case from a brake actuation detector for the front wheel brake and for the rear wheel brake, and an improved distribution of a total brake force on the front wheel and the rear wheel is effectuated which differs from the distribution that is effectuated by the driver.

The invention relates to a double-linked safety brake system. The double-linked safety brake system comprises a brake grip, the brake grip is provided with an integrated drive arm, a fulcrum is arranged between the drive arm and a base, one end of a first link rod is axially arranged at a first pivot shaft hole, the other end of the first link rod is connected to a rear wheel brake line to drive the operation of a rear wheel brake, one end of a second link rod is axially arranged at a second pivot shaft long hole, and the other end of the second link rod is connected to a front wheel brake line to drive a front wheel brake. When the brake grip is pressed, the brake grip drives the displacement of the first link rod to output a first brake braking force, and within the time difference of the first link rod reaching the set displacement distance, the first link rod simultaneously drives the displacement of the second link to output a second brake braking force; thus, the first and secondbrake braking forces having the time difference can be generated by one braking action; in this way, when the braking strength increases, the second brake braking force is greater than the first brake braking force, thereby increasing the braking efficiency and safety of brake system innovation.

A butterfly brake for bicycle is composed of brake driver and jaw body. The jaw body has left and right friction plates. The said brake driver consists of the drive axle perpendicular to the said friction plates and the driven disk matched with roll member to drive the drive axle. The drive disk has two different spiral slide ways for allowing the said roll member to move in them. Its advantages are big distance between two brake plates and high braking force.

The invention discloses a magnetic type safety guardrail. The guardrail comprises a plurality of stand columns, and the lower ends of the stand columns are fixedly connected with balance weight bases.The guardrail has the following advantages: once a vehicle collides with the guardrail, the side part of a vehicle drives a plurality of rotary drums to quickly rotate circumferentially, so the impact force of the vehicle on the front surface is weakened, and is converted into tangential force along one side of a rotary drum in the connecting rod direction, meanwhile, a conductive liquid in a hydraulic cavity generates vortex under the centrifugal effect, the overall height of the conductive liquid is increased, and the conductive liquid is in contact with conductive plates and switches on acircuit where a plurality of electromagnetic rods, the two conductive plates and an external power supply are located; and a vehicle shell is generally made of a ferromagnetic material, and a electromagnetic rod generates magnetic attraction force to the vehicle to drag the vehicle to move in the direction of the connecting rod, so the contact time between the vehicle and the rotary drum is prolonged, the braking acting force between the vehicle and the ground is improved, the conductive liquid is thrown out and sprayed to the vehicle through liquid throwing holes under the centrifugal effect,the fire preventing and extinguishing effect is achieved, and larger traffic accidents caused by fire are avoided.

The invention discloses a vacuum boosting method of an automotive brake with an emergency braking assisting function. Vacuum boosting is achieved by an automobile braking vacuum booster with an emergency braking assisting function. When a driver pedals a brake pedal at the speed above 800m / s, a slide valve hook generates deformation and is disconnected with a protrusion on a slide valve, and then the slide valve is free from constraint of the slide valve hook to move right so as to squeeze a rubber valve seat, so that a distance between the rubber valve seat and an air valve seat is increased rapidly, resistance to air of a rear cavity during flowing is reduced, flow of the air of the rear cavity is increased, further braking force is increased rapidly, and quick boosting during emergency braking is achieved. By the method, in the initial stage of emergency braking, braking force can be increased rapidly, and braking distance during emergency braking is shortened. Compared with an existing booster, the vacuum booster has the advantages of rapid response, simple structure, good reliability, high practicality, irrelevance of boosting amplitude and pedal travel and the like.

A work vehicle includes an engine, a traveling pump driven by the engine, a hydraulic circuit connected to the traveling pump, a traveling motor connected to the traveling pump via the hydraulic circuit, a rotational speed sensor configured to output a signal indicative of engine speed a hydraulic pressure sensor configured to output a signal indicative of hydraulic pressure of the hydraulic circuit, a controller. The controller receives the signals from the rotational speed sensor and the hydraulic pressure sensor. The controller determines whether the engine is in an over-rotation state based on engine speed. The controller determines an upper limit value of a displacement of the traveling pump based on hydraulic pressure of the hydraulic circuit. The controller limits the displacement of the traveling pump to the upper limit value or less upon determining that the engine is in the over-rotation state.

A method for controlling regenerative braking of a hybrid commercial vehicle that includes a main brake and an auxiliary brake is provided. The method includes determining whether a braking request condition of the vehicle is satisfied based on a state data and generating a request braking amount based on the state data when the braking request condition is satisfied. When an operation switch of the auxiliary brake is on an auxiliary braking amount of the auxiliary brake is generated. A final braking amount is generated based on the request braking amount and the auxiliary braking amount. A regenerative braking amount is generated based on the final braking amount and braking of the vehicle is performed based on the final braking amount.

In a hybrid vehicle, each of an engine and an MG1 is mechanically coupled to a drive wheel with a planetary gear being interposed. The planetary gear and an MG2 are configured such that motive power output from the planetary gear and motive power output from the MG2 are transmitted to the drive wheel as being combined. When a first condition is satisfied during traveling of the vehicle, a controller stops combustion in the engine and performs motoring by the MG1 such that the planetary gear outputs deceleration torque. When a second condition in addition to the first condition is satisfied (YES in S20) during deceleration of the hybrid vehicle with deceleration torque, the controller performs motoring with throttle opening being set to first opening or larger and WGV opening being set to second opening or smaller.

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.

The invention discloses an oil pressure type time difference brake device and an assembly thereof. The oil pressure type time difference brake device at least comprises a driving mechanism; the driving mechanism is provided with a pushing block, is arranged on the uppermost side of a cavity of a shell, and is started by dint of a brake operation module to enable the pushing block to generate a set displacement; a first piston of a first pump mechanism is driven to generate a displacement in real time so as to output first brake braking force to a rear wheel brake; and when the first piston of the first pump mechanism reaches a time difference of the distance of the set displacement, a second piston of a second pump mechanism is pushed to generate a displacement, and second brake braking force is output to a front wheel brake.

The invention discloses an elevator safety brake, which comprises a base body, two brake arms, a screw rod, two brake shoes, a brake disc, two spring bodies, a spring scale, a brake rod, a plunger and an electromagnetic The main body of the brake is made of iron, and the bottom ends of the two brake arms are provided with a secondary braking mechanism, and the secondary braking mechanism includes a secondary brake shoe, a brake pad, a main connecting arm, a secondary connecting arm, an elastic Composed of 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 close to the annular side of the brake disc, by adding a secondary brake pad to the device Braking mechanism, clever use of the brake arm when closing the brake and encircling the brake disc for braking through the brake shoe, compressing the secondary braking mechanism forces it to bend upward and arch to contact the annular bottom surface of the brake disc to assist it Braking, so that the braking inertia force is evenly distributed, increasing the braking effect.

The invention discloses a double-sided disc brake of a scooter. One end of a bridge type pull rod (7) is mounted on the inner side of a small clamp body (2), the bridge type pull rod (7) is made froman elastic material with reset elasticity, the head parts of the two ends of the bridge type pull rod are provided with non-circular through holes, an auxiliary ejection rod (4) is inserted in one through hole in a sleeving mode, a main ejection rod (3) is inserted into the other through hole in a sleeving mode, so that the thickness of the disc brake can be effectively reduced; a large clamp body(1) is provided with two sliding sleeve holes (1.1), the sliding sleeve holes (1.1) are in small clearance sliding fit with sling sleeve nuts (11), the disc brake can slide in the direction perpendicular to a disc (17), and when the double-sided disc brake is in action, the disc (17) is placed in the middle position, so that the problem of disc rubbing is avoided; and the disc brake can better adapt to the space narrowing condition, the position of a friction disc can be adjusted, and the braking force is improved, and the installation is simple.

The invention discloses a counterweight opposite traction mechanism for elevator emergency rescue, and belongs to the field of elevators. The counterweight opposite traction mechanism comprises a control system, a mounting platform and a lift car, a traction machine is mounted on the top wall of the mounting platform, a traction wheel is mounted on the traction machine through a traction shaft, a first worm gear is mounted at one end, away from the traction machine, of the traction shaft, the first worm gear is meshed with a first worm, and the two ends of the first worm gear are installed with the driving end of a protection motor and the driving end of a rescue motor correspondingly. According to the elevator traction mechanism, on one hand, through meshing of the first worm gear and the first worm and arrangement of the protection motor and the rescue motor, elevator operation faults caused by faults of the traction machine can be avoided, on the other hand, the clamping force on a traction rope is increased through a clamping gear, friction is increased, auxiliary driving can be carried out when the traction machine operates, slipping between the traction rope and the traction wheel, in addition, when the traction machine stops, the braking force of the lift car can be increased by means of friction force.

The invention discloses an oil pressure type time difference brake device and an assembly thereof. The oil pressure type time difference brake device at least comprises a driving mechanism; the driving mechanism is provided with a pushing block, is arranged on the uppermost side of a cavity of a shell, and is started by dint of a brake operation module to enable the pushing block to generate a set displacement; a first piston of a first pump mechanism is driven to generate a displacement in real time so as to output first brake braking force to a rear wheel brake; and when the first piston of the first pump mechanism reaches a time difference of the distance of the set displacement, a second piston of a second pump mechanism is pushed to generate a displacement, and second brake braking force is output to a front wheel brake.

A hydraulic assembly of a bicycle comprises a shell, a first piston and a second piston. The shell is provided with a hydraulic chamber, an oil inlet channel and an oil outlet channel, and the oil inlet channel and the oil outlet channel are connected with the hydraulic chamber; the first piston is movably positioned in the hydraulic chamber; the second piston is movably located in the hydraulic cavity and arranged on the first piston in a sleeving mode, the second piston is provided with a first end and a second end which are opposite, the outer diameter of the first end is larger than that of the second end, and the second end is far away from the oil inlet channel compared with the first end. When the distance of the first piston pushed by the hydraulic oil is smaller than a critical distance, the second piston is static relative to the shell, and the first piston moves relative to the second piston; when the distance of the first piston pushed by the hydraulic oil is larger than the critical distance, the first piston drives the second piston to move relative to the shell together.

The invention belongs to the technical field of brake actuators, and particularly relates to an oil-electric hybrid brake device. The brake device comprises a caliper frame and a caliper body connected with the caliper frame in a sliding mode; a jaw capable of accommodating a brake disc is arranged in the caliper body; friction plates, namely a first friction plate and a second friction plate, are arranged on the caliper body and located on the two sides of the jaw respectively, and a hydraulic driving device and an electric driving device are oppositely arranged on the caliper frame and located on the two sides of the caliper body; and the hydraulic driving device can push the first friction plate to move in the direction close to the second friction plate, and the electric driving device can push the second friction plate to move in the direction close to the first friction plate. The braking response time is shortened, the braking force is improved, and the defect that the braking response speed and the braking force of a traditional EPB cannot be considered at the same time is effectively overcome. Meanwhile, the oil-electric hybrid brake device has double functions of driving braking and parking braking, and the advantages of being good in braking stability, small in occupied space and the like.

The invention discloses an auxiliary braking system based on an independent suspension. An auxiliary braking assembly used for conducting auxiliary braking on an axle is arranged in the middle of the axle; a bearing seat is further arranged between the auxiliary braking assembly and wheels, the axle penetrates through the bearing seat, a spring shock absorber is arranged at the upper end of the bearing seat, the upper end of the spring shock absorber is hinged to the lower end face of a frame, and the lower end of the spring shock absorber is hinged to the upper end face of a supporting seat; the rear end of the axle is connected with a swing cushioning piece which can enable the axle to shake along with the wheels when the wheels shake, and the swing cushioning piece is installed on the lower end face of the frame; a pull rod is further arranged, one end of the pull rod is hinged to one end of the bearing seat, the other end of the pull rod obliquely extends towards the frame and is hinged to the frame, the pull rod can prevent the wheels from deflecting front and back and left and right, one more braking system is achieved through the auxiliary braking assembly, the braking performance can be doubled during braking, and the braking sensitivity, the braking distance and the braking force are greatly improved.

The invention provides a powerful double-pipeline brake cylinder which comprises an output pump and a reinforcement pump. The output pump comprises a first pump body, a first push rod and a first piston. The first piston is located in the first pump body. The first push rod is fixedly connected with the first piston. The reinforcement pump comprises a second pump body, a second push rod and a second piston. The second piston is located in the second pump body, and the second push rod is fixedly connected with the second piston. The second pump body is fixedly arranged on the rear portion of the first pump body, a through hole is formed between the first pump body and the second pump body, and one end of the second push rod penetrates through the through hole and abuts against the first push rod. The technical problem that the brake performance of a vehicle is poor due to the fact that the jacking force of an existing brake cylinder is small can be 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 discloses a double-disc drum type fishing reel reel, which comprises a double-disc drum type reel body, a cable rack and a cable shaft, and the reel of the double-disc drum type reel body is driven by a transmission mechanism The cable shaft rotates synchronously, the cable frame is set on the cable shaft, the cable frame is provided with threading holes, and the cable shaft drives the cable frame to move linearly back and forth. In the present invention, the fishing line passes through the threading hole for reeling, and since the line shaft and the reel rotate synchronously, the line shaft drives the line frame to move back and forth in a straight line, that is, the movement of the line frame and the rotation of the line drum are also carried out synchronously. And the spool rotates to wind the fishing line, so that the wire rack moves left and right when the spool winds up the line, which can ensure that the fishing line is evenly wound on the spool, and can prevent the spool and the spool from being out of alignment. The thread tangent is not good due to synchronous rotation. At the same time, because the double-disc drum reel body is a double-disc structure, the braking force of the double-disc drum reel body can be improved.

The invention discloses an elevator emergency rescue counterweight opposing traction mechanism, which belongs to the field of elevators and includes a control system, an installation platform, and a car. A traction machine is installed on the top wall of the installation platform. The machine is equipped with a traction wheel through the traction shaft, and the end of the traction shaft away from the traction machine is equipped with a first worm wheel, the first worm wheel meshes with the first worm, and the two ends of the first worm are respectively connected with the protection Drive end installation of motor and rescue motor. The elevator traction mechanism of the present invention, on the one hand, through the first worm gear meshing with the first worm, and the setting of the protection motor and the rescue motor, can avoid the elevator operation failure caused by the failure of the traction machine; The clamping force of the traction rope increases the friction, so that the auxiliary drive can be carried out when the traction machine is running, and the slip between the traction rope and the traction wheel can be avoided. In addition, when the traction machine stops, the friction force can also be used , increase the braking force on the car.

The invention discloses a braking method and device of a crane to solve the technical problems that in the prior art, when a brake is out of operation, a crane cannot brake, and the safety of hoisting work cannot be guaranteed. The method comprises the steps that when a brake is in a brake state, coded pulse generated by an encoder when the rotating process of a rotating shaft is detected is received, and the coded pulse is counted; whether the amount of coded pulse is larger than the preset number of times or not is judged, and a first judgment result is obtained; if yes, the zero servo function of a frequency converter is started, the rotating shaft of the motor is braked, and the technical effect that the brake system can still carry out normal braking after the brake of the crane is out of operation is achieved.

A superconducting eddy-current brake for high-speed trains includes a pair of superconducting magnet units with alternate arrangement of N and S poles; and a cryogenic system. The superconducting magnet units are fixed on a bottom of a bogie of the train and an air gap is provided between the superconducting magnet units and a top surface of a rail below the bogie. The cryogenic system is provided on the bogie of the train. Each superconducting magnet unit is embedded with a superconducting container including a coil case, a thermal shield and a Dewar successively from inside to outside. The coil case is filled with liquid helium. A superconducting coil is provided in the coil case and immersed in the liquid helium. A high-vacuum environment is provided in the thermal shield. Liquid nitrogen inlet and outlet pipes are provided on an outer wall of the thermal shield.