14results about How to "Reliable braking" patented technology

The utility model discloses a kind of steel wire rope automatic rope winding machines, by setting torsion releasing device, release the torsion generated in the process of winding rope of steel wire rope, prevent the disorder of rope reel caused by torsion of steel wire rope, tension adjusting device, the tension of steel wire rope in the process of winding operation can be adjusted in real time, so that winding is more regular, by increasing the friction of steel wire rope to slow down its speed, reach the purpose of adjusting tension;And rope reel butt joint device realizes automatic lifting transfer of the winding reel and the storage of steel wire rope by lifting mechanism and transmission mechanism, the degree of automation of the in-place, butt joint and rotating action of steel wire rope reel is high, winding is more efficient;While the rope guiding roller, line pressing mechanism and line arranging mechanism arranged between rope reel butt joint device and tension adjusting device, so that the line arranging and winding action cooperation is more smooth, and line arranging mechanism uses positive and negative screw rod to carry out automatic reversing, can realize the orderly storage of steel wire rope, improve the operation efficiency of steel wire rope storage.

The application belongs to the technical field of chain stopper, and particularly relates to a ship chain stopper, which comprises a ship body frame, a chain stopper base is arranged on the surface of the ship body frame, a chain guide wheel is rotatably arranged in the chain stopper base, a chain guide groove is formed in the surface of the chain guide wheel, an anchor chain is arranged on the surface of the chain guide wheel, and a fixing frame is arranged above the chain stopper base. When the anchor chain needs to be stopped, the control motor drives the rotating horizontal shaft to rotate, the rotating horizontal shaft drives the brake vane frame to rotate towards the side close to the anchor chain, then the brake vane frame drives the abutting plate to press on the surface of the anchor chain, and the horizontal link space of the anchor chain at different positions can be adjusted to cooperate with the clamping rods at the different positions through the adjustment unit, and the anchor chain is fixed through the clamping rods at the different positions. Compared with the original single brake vane or clamping block bearing the huge tension, the load of a single component is reduced by being dispersed to multiple support points.

This utility model discloses a front axle braking assembly, comprising a steering knuckle, a chamber bracket, a chamber, an adjusting arm, a camshaft, a camshaft bracket, and a brake. The chamber bracket, camshaft bracket, and brake are fixed on the steering knuckle, and the chamber is mounted on the chamber bracket. The camshaft is mounted on the camshaft bracket. The adjusting arm comprises a housing, a worm gear, a turbine, and an adjusting mechanism. The housing of the adjusting arm is connected to the chamber, and the turbine of the adjusting arm is connected to the camshaft. Its key feature is that the housing of the adjusting arm has an asymmetrical structure. Through the application of this asymmetrical design, the performance of the adjusting arm is enhanced without affecting the clearance between the adjusting arm and the chamber bracket. The reinforcement of the housing, worm gear, and turbine significantly improves the safety factor of the adjusting arm, ensuring the stable and reliable braking of the entire front axle throughout its entire lifespan.

The utility model belongs to the technical field of cement transport vehicles, and discloses a mining cement mixing transport vehicle which comprises a frame and a double-brake guarantee mechanism, a front drive axle, a power source and a rear drive axle are sequentially installed on the frame from front to back, and normally-closed brakes are installed on the front drive axle and the rear drive axle respectively. Each normally-closed brake comprises a brake body, a brake cavity is formed in each brake body, a plurality of brake discs which are coaxially arranged in sequence are installed in each brake cavity, and a spring brake assembly used for pressing or loosening the brake discs is arranged on one side of each brake disc. Hydraulic oil ways are formed between the peripheral walls of the spring brake assemblies and the inner wall of the brake cavity and communicate with a hydraulic oil way on the frame; according to the utility model, the normally closed brake is adopted, and a double-brake guarantee structure is arranged, so that the safety performance of the vehicle in a flameout state or under the condition of sudden failure is guaranteed in all directions, and the stability and reliability of the brake function are guaranteed.

The invention relates to the field of brakes, and discloses a double-return low-dragging dry type parking brake which comprises a caliper body, an executing mechanism, a return mechanism and a brake block assembly. The pincer body comprises an upper pincer body and a lower pincer body, a pincer cavity is formed on one side, a pincer back opening is formed on the other side, and the pincer cavity and the pincer back opening are communicated with each other; the upper clamp body is provided with a pin hole, a first pin assembly is installed in the pin hole and provided with a sliding pin, the lower end of the sliding pin is provided with a first limit used for limiting the lower end face of the pin hole, the upper end of the sliding pin is provided with a second limit, the sliding pin is further sleeved with a first return spring, and the upper end of the first return spring is supported on the second limit. The lower end of the first return spring is supported on the upper end face of the pin hole. The brake adopts a double-return buffering structure, is actually convenient to mount and is stable in movement.

A pirate ship braking device comprises a foundation support, a braking frame is vertically installed on the foundation support through a power driving device, a vertical support is installed on the braking frame, a transverse support is installed on the vertical support, a braking groove used for being matched with a pirate ship in a braking mode is formed in the transverse support, and braking leather is arranged in the braking groove. The bottom of the vertical support is installed on the brake frame through a plurality of vertically-arranged vertical buffers, the two sides of the transverse support are fixedly connected with the vertical support through a plurality of transversely-arranged transverse buffers, a transverse sliding block is further arranged at the bottom of the transverse support, and a transverse sliding rail matched with the transverse sliding block is arranged on the vertical support. Vertical sliding rails are arranged on the two sides of the brake frame, and vertical sliding blocks vertically installed on the vertical sliding rails in a sliding mode are arranged on the two sides of the vertical support. The bearing is safe and reliable, friction loss and extra stress can be effectively reduced through the improved design, and the durability and reliability of the bearing can be improved.

This utility model discloses a composite safety braking device for elevator cars, comprising: an elevator control system, a first drive module, and a second drive module; the elevator control system is connected to the first drive module and the second drive module; the elevator control system is used to monitor the car's operating signals, upper leveling signals, and lower leveling signals to determine the car's operating status and position; the first drive module is used to brake the traction sheave to indirectly stop the car; the second drive module is used to directly stop the car at the target position on the elevator guide rail to achieve secondary protection; the first drive module brakes the traction sheave to achieve conventional stopping; while the second drive module can directly act on the elevator guide rail to firmly fix the car at the target position, effectively overcoming the safety hazards caused by traditional braking systems relying on mechanical transmission links such as steel wire ropes and traction sheaves.

The utility model discloses a whole passenger car shot blasting electric rubber roller shutter door which comprises a door curtain winding drum installed on a door frame, a driving device used for driving the door curtain winding drum to rotate and a control device electrically connected with the driving device, and U-shaped guide rails distributed in the vertical direction are arranged on the two sides of the door frame respectively. The door curtain winding drum is horizontally distributed and rotationally installed above the two U-shaped guide rails, the door curtain winding drum is connected with a rubber door curtain in a winding mode, and the edges of the two sides of the free end of the rubber door curtain are slidably connected with the two U-shaped guide rails respectively; a guide roller which is installed in a free rotating mode is arranged between the door curtain winding drum and the upper portions of the two U-shaped guide rails, the guide roller and the door curtain winding drum are distributed in parallel, and the side wall of the guide roller abuts against the surface of the rubber door curtain. The utility model solves the problems that the electric door is easy to deform and damage due to the impact of steel grit in the shot blasting operation of the passenger car, the potential safety hazard of manual push-and-pull is large, the sealing performance is poor, and the like, and has the advantages of enhanced durability, high-frequency stable operation, environmental protection, standard reaching and the like.

A movable protective basket for steel structure installation includes a track, a protective basket that can move on the track, and a drive system for moving the protective basket. A base is provided at the bottom of the protective basket, and the drive system is mounted on the bottom surface of the base. Wheel sets are provided between the protective basket and the top surface of the H-shaped steel track, between the base and the track, and on both sides of the track. The drive system includes a motor, a first drive shaft, a second drive shaft, a driven shaft, a belt, and pulleys. The motor is fixed to the bottom surface of the base with bolts. This invention effectively prevents falls from heights and ensures worker safety through the protective basket. The track and wheel set structure allows for movement without disassembly, rapid positioning, and automatic cable winding and unwinding, significantly improving the efficiency of steel structure installation. The adjustable triangular support shaft is adjustable via a telescopic rod to adapt to different track sizes, ensuring smooth operation and reliable braking. A cable winding device is included to eliminate cable safety hazards and reduce auxiliary operation risks.

This utility model discloses a rear end cover device for a vacuum servo motor, including a rear end cover body fixedly connected to the vacuum servo motor body, a first rolling bearing disposed in the center of the rear end cover body and sleeved and connected to the rotating shaft of the vacuum servo motor, a hollow armature connector mounting seat disposed at the rear end of the rear end cover body, an armature connector disposed in the armature connector mounting seat and coaxially arranged with the rotating shaft of the vacuum servo motor, and a first connecting plug disposed on the armature connector mounting seat and electrically connected to the armature connector; the armature connector includes an armature mounting seat fixed in the armature connector mounting seat, several reset support assemblies fixedly connected at one end to the armature mounting seat, an armature coil assembly fixed at the other end of the reset support assembly, and an armature sleeved on the reset support assembly and placed between the armature coil assembly and the armature mounting seat.

This utility model discloses a brake, which is installed on the output end of a rotary drive device for braking the drive end of the rotary drive device. The brake includes: a base, a brake wheel, a cylinder, a brake mounting bracket, a clamping mechanism, a clamping transmission mechanism, and a compression spring mechanism. The cylinder extends and retracts upward, causing the clamping transmission mechanism to rotate, causing the left side of the clamping mechanism to press against the brake wheel. When the clamping transmission mechanism rotates, it causes the right side of the brake mounting bracket to rotate to the left, causing the right side of the clamping mechanism to press against the brake wheel, thus braking the brake wheel. When the right side of the brake mounting bracket rotates to the left, the frame of the brake mounting bracket presses against one side of the compression spring mechanism, causing the clamping mechanism to exert a clamping force on the brake wheel.

The invention relates to an electric parallel axle assembly with an independent rainproof parking brake, and belongs to the technical field of automobile manufacturing. The left side and the right side of a drive axle are each provided with a rim and a tire, and the rims are connected with the tires; the parallel shaft gearbox is connected with the drive axle, a mounting flange of the parallel shaft gearbox is connected with a drive motor, power of the drive motor is transmitted to a differential mechanism of the parallel shaft gearbox, and the power is output to the drive axle through the differential mechanism; the parking brake assembly is connected with an input shaft of the parallel shaft gearbox so as to carry out parking brake on tires; the brake drum assemblies are arranged on the left side and the right side of the drive axle, connected with the rims and used for outputting power of the drive motor to the rims so as to conduct parking brake on the tires. Independent service braking and concentrated parking braking are adopted, the parking braking capacity meeting the larger requirement is provided for the whole machine, a parking braking mechanism on the brake drum assembly is omitted, the structure is simplified, and the service braking reliability is enhanced.

The invention discloses a dual-mode cooperative control system for a range-extended tractor, and relates to the technical field of tractors, electric quantity data of a storage battery are collected through a DCV3800 monitor, an SOC value is obtained through operation of an ampere-hour integral method, and start and stop of a range extender are controlled through a threshold value; the torque and the rotating speed of a traction motor are collected through an FLC5000 sensor, the real-time load power is obtained through calculation, three working states are switched in a self-adaptive mode in combination with the SOC value, and the energy complementing power is dynamically adjusted. Multi-point monitoring of the temperature of the core component is realized through a PT1000 sensor, and early warning and shutdown are executed in a graded manner; the emergency braking module and the electromagnetic braking device achieve global cooperative braking through an EZ800 switch, the main controller further integrates overload self-adaption load reduction logic, full-dimension cooperative control over electric quantity, load, temperature and braking is achieved, the energy saving performance, stability and safety of the traction machine are improved, and the traction machine is suitable for scenes such as electric power construction in mountainous regions and urban and rural complex regions.

The utility model relates to a luggage trundle which comprises a trundle support and a trundle body, a trundle locking assembly on the trundle support comprises a driving component and a locking component, a pin tumbler containing hole is formed in the trundle support, and the locking component is a locking pin tumbler arranged in the pin tumbler containing hole. The driving component is configured to be a sliding block which is limited on the trundle support and slides in the longitudinal direction, a locking piece control face on the sliding block comprises a locking keeping face, a middle inclined face and an avoiding face, when the trundle locking assembly is in an unlocking state, the driving component slides to the avoiding face to correspond to the locking marble in position, and the locking marble can move to be separated from the annular locking part; when the trundle locking assembly is in a braking state, the driving component slides to the locking keeping face and corresponds to the locking marble in position, the locking marble is limited by the locking keeping face and is in braking fit with the annular locking part, and the middle inclined face of the sliding block can push the locking marble to move from the unlocking position to the locking position. The driving component is matched with an elastic reset element. The device has the advantages of simple assembly and reliable work.