11results about How to "Large braking force" patented technology

The application discloses a brake disc brake, a brake system and a brake disc brake / loosen brake method, relates to the technical field of oil drilling equipment, and comprises a clamp body assembly with a brake gap, brake blocks are arranged on the two side walls of the brake gap, at least one brake block piston block is present, each piston block is in sliding connection with a piston hole in the clamp body assembly; the middle part of the piston block is provided with an annular boss, a first sealing structure is arranged between the outer side wall of the annular boss and the inner wall of the piston hole, and the two ends of the piston block are respectively provided with a third sealing structure and a second sealing structure between the piston hole; the piston hole space between the first sealing structure and the second sealing structure is a brake oil cavity, and the piston hole space between the first sealing structure and the third sealing structure is a loosen brake oil cavity. The application changes the original mode in which only the elastic force of a butterfly spring is used as a braking force, and utilizes hydraulic oil to make the braking force of the brake larger, so that the development demand of equipment large-scale and heavy-load can be met.

The invention provides a pressure relief type pushing device and a braking system, and relates to the field of braking, the pressure relief type pushing device comprises a shell, the interior of the shell is divided into a first cavity and a second cavity through a partition plate, the first cavity and the second cavity are used for containing a hydraulic medium, and the partition plate is provided with a circulation opening used for communicating the first cavity with the second cavity; the hydraulic pump is used for driving a hydraulic medium to flow into the second cavity from the first cavity; the driving assembly is partially located in the second cavity and used for being driven by the hydraulic medium to move in the direction away from the partition plate. The reset piece is located in the second cavity, makes contact with the driving assembly and is used for driving the driving assembly to move in the direction close to the partition plate; the part, extending out of the second cavity, of the driving assembly is used for driving a braking structure of the braking device to generate braking force, the braking force is reduced in the state that the driving assembly moves in the direction away from the partition plate, and the braking force is increased in the state that the driving assembly moves in the direction close to the partition plate. The braking system is simple in structure and high in braking reliability.

The application provides a kind of based on hydraulic drive's braider broken wire detection and brake protection device, belongs to braider technical field;Solve the problem that braider in prior art does not have broken wire detection function and brake protection function;Its technical scheme is that a kind of based on hydraulic drive's braider broken wire detection and brake protection device, including spindle, dial, transmission sprocket, chain, hydraulic motor base and hydraulic motor, still include centrifugal force deceleration mechanism and multi-plate clutch, hydraulic motor and multi-plate clutch are connected by shaft coupling, centrifugal force deceleration mechanism and multi-plate clutch are provided with intermediate gear and bevel gear, deceleration disc is arranged in centrifugal force deceleration mechanism, deceleration disc and intermediate gear and sprocket synchronous rotation, hydraulic motor base two sides are also provided with hydraulic cylinder;The beneficial effects of the application are that the problem that braider in prior art does not have broken wire detection function and brake protection function is overcome.

The application belongs to the technical field of eddy current braking system, and particularly relates to a permanent magnetic eddy current brake. The technical scheme is as follows: a permanent magnetic eddy current brake comprises a metal brake plate unit and a brake magnet unit, the brake magnet unit comprises a permanent magnet array, and the permanent magnet array is arranged close to the metal brake plate unit; as viewed from the metal brake plate unit to the permanent magnet array, the magnet poles of the magnets on the right side of the permanent magnet array are deflected in a clockwise direction relative to the magnet poles of the magnets on the left side, and the deflection angle is less than 180 DEG. The application provides a permanent magnetic eddy current brake capable of improving the utilization rate of magnets.

The utility model discloses a kind of thin permanent magnet brake, including by flange, armature, inner magnetic pole, permanent magnet, magnetic shell coaxial setting composition brake body, the flange is equipped with pre-stretching elastic element between armature, the elastic element continuously pulls armature and moves to flange direction;Permanent magnet and coil are equipped with magnetic shell, the coil diameter is greater than permanent magnet diameter, the permanent magnet is placed inside coil;The permanent magnet is also fixedly connected inner magnetic pole, the inner magnetic pole, permanent magnet, magnetic shell form accommodating groove, the coil is equipped in accommodating groove, the inner magnetic pole and magnetic shell are equipped with at least one gap. The utility model does not destroy the appearance size of brake geometric body, can greatly compress brake thickness, output brake force is big, and performance is more stable.

The invention belongs to the technical field of wind power generation equipment, and particularly relates to an electro-hydraulic brake device of a yaw system of a large wind turbine. The invention provides an electro-hydraulic brake device for a yaw system of a large-scale wind turbine, and aims to solve the problem that a brake device applied to a yaw system of a wind driven generator in the prior art is complex in structure and not easy to maintain. An electro-hydraulic brake device of a yaw system of a large wind turbine comprises an electromagnetic valve component and a brake disc body component, the brake disc body component comprises a brake disc body, an oil cavity is formed in the brake disc body, a piston is connected in the oil cavity in a sliding mode, a brake pad is installed on the piston through a rod piece, and the brake pad is located outside the oil cavity; the scheme that the hydraulic oil pressure is increased through electromagnetic valve driving, and then the hydraulic pressure drives the brake device to be started is adopted, namely, the electro-hydraulic joint control scheme. The problems of system complexity and response delay of a hydraulic system can be solved, enough driving force can be provided, and a normally-closed brake system can be rapidly started.

The application relates to the electric drive technology field of new energy vehicles, in particular to a differential protection method and device, an electric vehicle and a storage medium, wherein the method comprises the following steps: acquiring the output torque of a driving motor in the electric vehicle; if the output torque is in a preset torque interval, activating the differential protection function of the differential and / or the gravity control system of the electric vehicle, wherein the execution priorities of the gravity control system and the differential protection function are different; reducing the output torque of the driving motor by using the differential protection function and / or the gravity control system, so as to reduce the speed difference between the half shafts in the differential, until the speed difference is less than a first preset value. Thus, the problem that the differential is prone to failure and the vehicle is prone to failure due to long-time wear and tear of the differential exceeding the design boundary in the prior art is solved, the service life of the electric vehicle is reduced, and the user experience is poor.

The utility model relates to the field of brakes, and discloses a dry-type fixed caliper which comprises a caliper body, a brake driving mechanism drives a brake block to brake, a first mounting cavity is formed in the outer end face of the first caliper body, a second mounting cavity is formed in the inner side end face of the first caliper body, and the brake driving mechanism comprises a driving motor and a transmission mechanism. The driving motor is mounted in the second mounting cavity, the transmission mechanism is mounted in the first mounting cavity, the driving motor is connected with the transmission mechanism to drive the transmission mechanism to move, and the transmission mechanism drives the brake block to axially move; a top cover is arranged at the upper end of the mounting cavity I, and the transmission mechanism is mounted in a space formed by the top cover and the mounting cavity II; the transmission mechanism comprises a driving shaft and further comprises a guide cavity, the guide cavity is located around the second installation cavity, the axes of the guide cavity are parallel, the guide cavity extends from the outer end to the jaw direction, the driving shaft can act on the brake block through the guide cavity, and the brake caliper has the advantages of being compact in structure and reliable in braking force and cannot affect existing vehicle design.

The utility model discloses a flat type permanent magnet brake which comprises a brake body formed by coaxially arranging an outer flange, an armature, an inner flange, an inner magnetic pole, a permanent magnet and a magnetic shell, a pre-stretched elastic element is arranged between the outer flange and the armature, and the elastic element continuously pulls the armature to move towards the outer flange; a containing groove is formed in the magnetic shell, a permanent magnet and a coil are arranged in the containing groove, the diameter of the permanent magnet is larger than that of the coil, and the permanent magnet is arranged on the outer side of the coil; the permanent magnet is further fixedly connected with an inner magnetic pole, an inner flange is further arranged on the containing groove, the containing groove forms a closed space through the inner flange, the inner magnetic pole and the permanent magnet, the closed space is provided with at least one gap, and the coil is arranged in the closed space. The overall dimension of the geometry of the brake is not damaged, the thickness of the brake can be greatly reduced, the output braking force is large, and the performance is more stable.

The utility model discloses a spring controller of an elevator braking device, and relates to the technical field of elevator braking devices. The elevator braking device comprises an outer box and further comprises a braking part which is installed in the outer box and used for transmitting braking force into an elevator. The number of the locking parts is two, and the two locking parts are both arranged in the braking part; the number of the extrusion parts is two, and the two extrusion parts are both located in the braking part; wherein the two locking parts are used for generating braking force, and the two extrusion parts are used for assisting the two locking parts to operate, so that the two locking parts generate larger braking force. By arranging the locking part, the problems that in the using process of a spring controller of an existing elevator braking device, the braking time is long, a braking spring needs to be compressed gradually, the braking spring is difficult to generate large enough elastic force in a short time, and the braking response speed is affected are solved.

The application relates to a vehicle electric control hydraulic brake booster device and belongs to the technical field of vehicle brake systems. A controller assembly is electrically connected with a motor assembly, a motor shaft of the motor assembly is interference riveted with a sun gear of a planetary reduction mechanism, the planetary reduction mechanism is assembled with a ball screw transmission mechanism, a brake master cylinder assembly is connected with the motor assembly, a positioning groove of a master cylinder body in the brake master cylinder assembly is connected with a rotation-limiting outer boss of a rotation-preventing sleeve in the ball screw transmission mechanism in a matched mode, a hydraulic sensor is installed at an output end of the master cylinder body, and a liquid storage tank assembly is fixedly connected with the brake master cylinder assembly. The device has the advantages that the structure is novel, compared with a conventional vacuum booster, the device can provide greater braking force by using the atmospheric pressure generated boost force, is suitable for vehicles with greater load; compared with a conventional air pressure brake booster device, the device occupies less space, is convenient to install, has small working noise, stable braking, low energy consumption, low manufacturing cost, is suitable for low-temperature working environments, and is suitable for a wide range of vehicle models.