19 results about "Transmission brake" patented technology

The utility model discloses a wind power generation brake disc assembly which comprises a brake caliper shell and a brake disc, adjustable installation pieces are symmetrically distributed between the left inner wall and the right inner wall of the brake caliper shell, friction pieces are symmetrically distributed on the opposite inner side faces of the two installation pieces, and the brake disc is located between the transversely adjacent friction pieces. The device further comprises an auxiliary braking mechanism. The auxiliary braking mechanism comprises hydraulic rods, hemispherical heads and hollow hemispherical protrusions, the hydraulic rods are symmetrically distributed and installed on the opposite inner side faces of the two installation pieces, the hydraulic rods are located between the two friction pieces which are adjacent up and down, and according to the wind power generation brake disc assembly, the hemispherical heads make contact with the spherical surfaces of the protrusions, braking force is transmitted through shearing force, and the braking force is transmitted through the hollow hemispherical protrusions. And mechanical meshing and friction dual braking is formed, on the basis of friction plate braking, additional braking force is provided, the braking force of the braking assembly on the braking disc is increased, and the braking time of the wind driven generator is effectively shortened.

An automated mechanical transmission for a vehicle includes a main gearbox assembly comprising a main shaft and being adapted to be shiftable between at least one engaged state and a neutral state; a split gearbox assembly comprising an input shaft and being adapted to be shiftable between a first engaged state, a second engaged state and a neutral state; a countershaft; a crawler gearbox assembly comprising a crawler gear engagement member which is adapted to selectively engage and disengage a crawler gear defining a torque path from the input shaft to the main gearbox assembly via the countershaft; a gearbox brake; and transmission control unit. The transmission is configured to be settable in an AMT neutral state defined by the main gearbox assembly being in the neutral state. When the transmission control unit obtains a request to engage the crawler gear from the AMT neutral state, the transmission control unit is configured to apply the gearbox brake so that a rotational speed of the countershaft is reduced to a first predetermined rotational speed which is higher than a zero rotational speed; and when the first predetermined rotational speed is reached, release the gearbox brake, set the split gearbox assembly to the neutral state and engage the crawler gear by the crawler gear engagement member.

The utility model relates to the technical field of crawler tractors, in particular to a decompression protection brake device which comprises a gearbox, brakes, a driving shaft and an oil tank, each brake comprises a shell, a fixed piston, a movable piston, a compression spring, a brake releasing bolt, a middle baffle, a pressing disc and a friction disc assembly, and a loading oil cavity of each brake is connected with a hydraulic oil tank through an oil way. And a pump and an electromagnetic directional valve are arranged on the oil path. According to the hydraulic electromagnetic valve for braking control, a braking system can be controlled according to different braking intentions, various braking requirements of driving and parking are met, the response speed is high, and safety and reliability are achieved; and brake pressure loss protection can be carried out in emergency situations or vehicle faults, the safety of the vehicle and a driver is protected, the safety performance is higher, and the device is suitable for being used in large-slope areas such as mountains and hills.

The multifunctional hydraulic transmission brake system disclosed in the present invention includes a hydraulic valve group, a hydraulic motor, a hydraulic clutch, a planetary reducer and a hydraulic brake assembly. The motor housing of the hydraulic motor extends toward one side of its output shaft to form a hollow spline transmission shaft. The high-speed end brake and the hydraulic clutch are both integrated inside the spline transmission shaft. The end of the hydraulic clutch away from the hydraulic motor is connected to the planetary reducer, making the overall structure very compact and small in size. At the same time, since the housings of the high-speed end brake, the hydraulic motor and the hydraulic clutch are an integrated structure (spline transmission shaft), the system has good rigidity and high reliability. On the other hand, the inner ring gear of the planetary reducer extends toward the side of the hydraulic motor to the outside of the spline transmission shaft. A low-speed end brake is provided between the inner ring gear extension section and the spline transmission shaft, thereby realizing a double-insurance braking function, effectively solving the problems of the existing hydraulic transmission brake device with complex structure, low integration and single function.

The present application relates to the field of drive device for compact shelf, especially to a compact shelf brake device with self-locking function, comprising a brake mechanism assembly, a connecting piece, a transmission fixed plate, a main transmission shaft assembly, a crank handle assembly, a clamping structure and a cover, the transmission fixed plate is installed on the compact shelf, the connecting piece is installed on the transmission fixed plate, the connecting piece is installed together with the transmission fixed plate through connecting bolts, a support bearing is installed on the connecting piece, the main transmission shaft assembly is sleeved on the support bearing installed on the connecting piece, the compact shelf brake device of the present application is combined with the crank handle, which greatly optimizes the brake device structure component and reduces the cost of production materials; the brake structure can be packaged in the transmission structure of the crank handle, avoiding the loss of constituent parts during packaging or transportation, and ensuring the installation of the compact shelf transmission brake mechanism in the later period.

The utility model relates to the technical field of shaver production and processing, and discloses a perforating device for shaver processing and production, which comprises a support component, a processing support is mounted on the rear side of the top of the support component, a rotary limiting component is mounted on the front side of the top of the support component, and a transmission brake component is mounted on the top of the processing support. A lifting brake adjusting device is installed at the bottom of the transmission brake assembly. Due to the fact that the rotary limiting assembly is installed on the device, when the device is used, a shaver which is installed in a limited mode can be subjected to rotary drilling work through the rotary limiting assembly, and therefore the working efficiency of perforating can be improved; and the situation that the efficiency is low due to the sequential machining work mode is avoided.

The utility model relates to brake technical field, concretely is a kind of high-efficiency brake assembly, including connecting disc and brake block, the surface of connecting disc is connected with rocker arm column and passes through, one end of rocker arm column is sleeved with connecting arm, the other end of rocker arm column is fixedly connected with stop block, the surface of stop block is sleeved with rocker arm roller shaft, the surface of connecting disc is movably connected with brake block.The utility model is connected with the rotary connection of connecting disc and rocker arm column, under the connection of rocker arm column and connecting arm, the connection of rocker arm column and stop block, through the effect of rocker arm roller shaft and brake roller shaft, realize the control effect of the angle of brake block and brake pad on connecting disc, through the effect of brake roller shaft and rocker arm roller shaft, brake pad can be opened, form five-axis transmission brake, so compared with traditional brake, save effort and improve brake effect thirty percent, reduce rocker arm column abrasion, reduce failure rate and improve service life.

The embodiment of the invention provides a transmission brake assembly optimization method and device, equipment and a medium, and relates to the technical field of transmissions.The method comprises the steps that fault data of a transmission brake are obtained, and the fault data are analyzed to determine fault factors of the transmission brake; the fault factors comprise a sealing ring defect, a working condition control defect and an unbalance loading inhibition defect; determining a sealing ring influence factor according to the sealing ring defect, and generating a sealing ring optimization strategy according to the sealing ring influence factor through the optimization model; working condition influence factors are determined according to the working condition control defects, and a working condition control optimization strategy is generated according to the working condition influence factors through an optimization model; and determining unbalance load suppression influence factors according to the unbalance load suppression defects, and generating an unbalance load suppression optimization strategy according to the unbalance load suppression influence factors through the optimization model to obtain a final optimization strategy. Omnibearing optimization of the transmission brake can be achieved, and the failure rate of the transmission brake is reduced.

The present invention relates to the technical field of engineering machinery braking, and specifically to a multifunctional braking system for engineering machinery, including a parking and auxiliary braking unit, which includes a two-position three-way solenoid valve, a parking brake air chamber, a transmission brake, a pressure switch, and a parking brake switch. The front end of the solenoid valve is connected to the air processing unit, and the rear end is connected to the parking brake air chamber and the transmission brake in sequence. The input end of the pressure switch is connected to the power supply, the output end is connected to the parking brake switch input end, the pressure detection end is connected to the air processing unit, the parking brake switch output end is connected to the solenoid valve coil input end, and the solenoid valve coil output end is grounded. When the solenoid valve is energized, the front and rear air paths are connected; when the solenoid valve is de-energized, the front air path is closed and the rear air path is connected to the atmosphere. The present invention has a simple structure and can achieve parking braking under the active operation of the operator, and can also achieve parking braking without the need for operator operation, thereby improving the braking safety of the braking system.

The invention relates to an air brake foundation transmission brake cylinder stroke measuring device and a measuring method, the air brake foundation transmission brake cylinder stroke measuring device comprises an optical distance measuring sensor, a fixed tube seat and a connecting tee joint, and two ends of the fixed tube seat are respectively in threaded connection with the optical distance measuring sensor and the connecting tee joint. A transmission cable is arranged at one end, far away from the fixed tube seat, of the optical distance measuring sensor, one end, far away from the fixed tube seat, of the connecting tee joint is in threaded connection with a test interface at the rear part of the brake cylinder, and a plug on the test interface can be mounted on another port of the connecting tee joint and seals the port. The plug unscrewed from the test interface can be screwed into the port of the connecting tee joint, so that the plug is prevented from being lost, and the connecting tee joint is sealed by using the plug. The optical distance measuring sensor can monitor the position of the piston in the brake cylinder in real time by sending and receiving optical signals, and stroke data of the brake cylinder can be accurately obtained. Due to the fact that no movable structure exists, the device has the advantages of being high in reliability and stability.

A vehicle, comprising a drive axle, the drive axle comprising a braking device. The braking device comprises: a prime-mover braking assembly for providing a first type of braking force to a prime-mover shaft in a vehicle; and a transmission braking assembly for providing a second type of braking force to a transmission shaft in the vehicle. The prime-mover braking assembly is connected to the prime-mover shaft, and the transmission braking assembly is connected to the transmission shaft.

The invention relates to the technical field of helicopter brake systems, in particular to a helicopter passive fly-by-wire brake system which comprises brake instruction sensors, a cockpit control panel, a brake control box, a passive electric control brake valve and a brake device. The command sensor is electrically connected with the brake control box, the brake control box is used for controlling the passive electric control brake valve, the passive electric control brake valve is used for providing hydraulic pressure for the left brake device and the right brake device, a trigger button is arranged on the cabin control panel, and a manual control mechanism is designed on the passive electric control brake valve. The brake control box receives voltage signals from the brake instruction sensor and a cabin control panel button and converts the voltage signals into control signals for driving the left passive electric control brake valve and the right passive electric control brake valve to drive, the passive electric control brake valves output hydraulic pressure to the brake device according to the control signals, and the brake function is achieved. The brake device has the functions of stopping brake, loosening brake and correcting brake in a power-on state.

The application provides a vehicle gearbox brake control method and device and a vehicle. The method comprises the following steps: acquiring current state information in real time, wherein the current state information comprises an input shaft rotating speed, an output shaft rotating speed, a gearbox body temperature, a current gear of the gearbox, a target gear of the gearbox and an intermediate shaft brake slope; inputting the current state information into an optimized network model to obtain control time information, wherein the control time information comprises a brake start time and a brake total time; the optimized network model is obtained by training and optimizing an original network model, wherein the original network model is trained by taking historical state information as input and taking historical control time information as target output; and generating a control instruction according to the brake start time and the brake total time and sending the control instruction to the intermediate shaft brake. The method is beneficial to improving the brake accuracy of the intermediate shaft brake.

The application relates to a brake device, a drive axle and a vehicle, wherein the brake device comprises: a prime mover brake assembly used for providing a first type of brake force to a prime mover shaft in a vehicle; and a transmission brake assembly used for providing a second type of brake force to a transmission shaft in the vehicle; wherein the prime mover brake assembly is connected to the prime mover shaft, and the transmission brake assembly is connected to the transmission shaft. The application has the beneficial effect of providing a brake device, a drive axle and a vehicle which can meet different brake requirements by applying different brake forces to the prime mover shaft and the transmission shaft of the vehicle.

A launch control system for a vehicle having a powertrain includes a transmission configured to selectively perform a transbrake operation to temporarily lock the transmission to hold the vehicle stationary while an engine throttle position is increased for a vehicle launch, an actuator configured to initiate a transbrake creep operation, and a controller in signal communication with the transmission and the actuator. The controller is configured to (i) command the transmission to perform the transbrake operation, (ii) receive a signal from the actuator indicating a request to initiate the transbrake creep operation, and (iii) command the transmission to momentarily disengage the transbrake for a predetermined period of time to enable the vehicle to perform the transbrake creep operation and move the vehicle forward while maintaining the increased engine throttle position.

The invention provides a 3-RRS cervical vertebra orthosis and belongs to the technical field of medical instruments, the 3-RRS cervical vertebra orthosis comprises supporting assemblies located on the two shoulders, a 3-RRS assembly supported and fixed through the supporting assemblies, a spring brake and a head fixing piece, and the supporting assemblies comprise bases for adjusting the shoulder width. The head fixing piece can adjust the size of the head circumference and is provided with three ball pair connectors. The spring brake comprises a torsion spring for providing torque, a transmission brake part for completing braking and a knob for applying torque. The 3-RRS assembly is provided with a first node piece and a first hinge to be matched with the base and the transmission brake piece to form a first rotating pair, is provided with a second node piece and a second hinge to form a second rotating pair, and is provided with a third node piece as a universal joint to be connected with a spherical pair connector, and 3-RRS assembly of the cervical vertebra orthosis is completed. Three rotational degrees of freedom are given to the head fixing part through the 3-RRS configuration, the normal physiological activity limit of the cervical vertebra is simulated and approached, and the movement range is expanded.

A method for operating a drive system of a motor vehicle, the drive system comprising: a drive unit (1); a group transmission (2) with sub-transmissions; and a disengagement clutch (5) connected between the drive unit and the group transmission, wherein if the speed becomes less than a threshold value, the disengagement clutch (5) is disengaged and one of the sub-transmissions is shifted to neutral for transmission pre-selection, and the other sub-transmissions or each of the other sub-transmissions is shifted to a force-locked state, wherein the disengagement clutch (5) is then at least partially closed and the drive unit (1) is brought to a defined speed, wherein a starting shift is then checked when the group transmission (2) requires force-locked engagement. If the driver expects to shift gears, then if the driver expects to shift gears, then it is checked whether the target speed of the drive unit (1) is greater than or less than the current input speed of the group transmission. If there is a starting shift and if the target speed of the drive unit (1) is less than the current input speed of the group transmission when the driver expects to shift gears, then the disengagement clutch (5) is disengaged and the sub-transmission in neutral is synchronized by the transmission brake (4). If the target speed of the drive unit (1) is greater than the current input speed of the group transmission (2) when the driver expects to shift gears, then the sub-transmission in neutral is synchronized by the drive unit (1).

The utility model discloses a tricycle brake transmission brake axle structure, which relates to the technical field of tricycle brake axles, has the advantage that a bearing body can be mounted on the outer wall of a transmission shaft without mounting a positioning block, and is characterized by comprising the transmission shaft with a polygonal longitudinal section and bearing components symmetrically arranged at two ends of the transmission shaft, the bearing assembly comprises a bearing seat fixed on the frame, a bearing body is mounted in the bearing seat, and the inner wall of an inner ring of the bearing body is a polygonal hole matched with the outer wall of the transmission shaft.

The invention discloses a hub brake disc temperature acquisition system and method. The monitoring system comprises a sensor measurement unit, a signal acquisition module, a bus transmission module, a data processing module, a working condition parameter module and an instrument panel. The monitoring method comprises the steps of detecting and transmitting brake disc temperature data in real time, receiving the transmitted brake disc temperature data, performing weighted data processing based on a preset measurement weight, and performing corrected data processing in combination with vehicle operation condition parameters. According to the invention, the accuracy of temperature monitoring is effectively improved, the temperature change of the brake disc under various working conditions can be accurately reflected in real time, and a reliable basis is provided for the evaluation of the brake performance of a vehicle; the system installation cost and the installation and maintenance difficulty are effectively reduced; a driver can know the working state of the brake disc in time, and is matched with an early warning system and an automatic safety system to quickly respond, so that a brake failure accident caused by brake heat fade is effectively avoided, and the brake safety and the overall operation safety of a vehicle are remarkably improved.