5results about How to "Steady braking force" patented technology

The utility model relates to hoisting equipment technical field provides the special explosion -proof hoisting machinery transport hoist and mount equipment of limited space, including hoist frame, set up the mobile seat of hoist frame crossbeam and set up the lifting trolley of mobile seat, lifting trolley includes base and brake wheel, be equipped with the slide block of slidable on base, the hydraulic brake cylinder is hinged to have on slide block, base still be equipped with the screw rod of by motor drive, screw rod is connected with slide block drive connection, to drive slide block and the hydraulic brake cylinder hinged to its on mobile, be used for compensating the wear clearance of brake shoe.

The utility model relates to a device for realizing pumping and adjusting goat horn brake hydraulic pressure, including motor, oil pump, center block, oil tank, pressure sensor, diaphragm type energy accumulator, check valve, two -way normally closed electromagnetic valve and two -way normally open electromagnetic valve, center block installs between motor and oil pump, oil pump is completely immersed in the hydraulic oil in oil tank, check valve links with the output end of oil pump, diaphragm type energy accumulator links with the output end of check valve, one end of two -way normally closed electromagnetic valve links with the output end of check valve, the other end of two -way normally closed electromagnetic valve is connected with brake caliper, one end of two -way normally open electromagnetic valve and oil tank lead, the other end of two -way normally open electromagnetic valve is connected with brake caliper. The device for realizing pumping and adjusting goat horn brake hydraulic pressure that has adopted the utility model, through the cooperation of energy accumulator, switch valve, can make brake caliper braking force long -term keep stable, safe and stable. The existence of energy accumulator guarantees that motor will not frequently start and stop, and the service life of motor oil pump is prolonged.

The utility model discloses a blade braking device of a mowing vehicle and the mowing vehicle, and relates to the technical field of mowing vehicles, the blade braking device of the mowing vehicle comprises a braking block, the braking block is provided with at least two friction surfaces, and the at least two friction surfaces are used for being in friction with the inner wall surface of a belt pulley to achieve braking of the belt pulley and a blade; the brake block is configured to move between a first position and a second position relative to a belt pulley of the mowing vehicle, so that when the brake block is located at the first position, at least two friction surfaces are in friction with the inner wall surface of the belt pulley to brake the belt pulley and the blade, and when the brake block is located at the second position, the brake block is separated from the belt pulley. According to the blade braking device of the mowing vehicle, the problem that the braking time is unstable due to friction between metal parts and a belt is solved.

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 invention relates to an electric control push rod mechanism for a commercial vehicle brake. The electric control push rod mechanism comprises a service braking module, a parking braking module and a ball screw pair. The service braking module and the parking braking module are arranged in the axial direction and connected with the ball screw pair, and braking thrust is provided for the service braking module and the parking braking module through the ball screw pair. As an executing mechanism of an electrically-controlled mechanical braking system, the braking system can be matched with a disc brake and a drum brake, compared with a traditional air braking system, the braking system has the advantages of being short in response time, stable in braking force, low in braking noise and the like, and meanwhile a basic control object is provided for an intelligent automobile.