32results about How to "With brake function" patented technology

The present invention is electrical stepless speed variator and its driving mode. The electrical stepless speed variator has a planetary sun gear connected to the inner rotor of the double mechanical port motor, a planetary ring gear connected through a clutch to the outer rotor of the motor, the clutch for controlling the connection and disconnection between the outer rotor and the ring gear, the first brake between the ring gear and the casing of the power assembly for braking the ring gear, and the second brake between the engine shaft and the casing of the power assembly for braking the engine. By switching with these two brakes and the clutch, the vehicle may be switched in different driving modes; and controlling the rotation speed of the inner rotor can control the switching of the electrical stepless speed variator in different mixed driving modes.

The invention relates to an energy-saving hydraulic oil pumping unit with adjustable stroke used in oil field, comprising frame, gear group, hydraulic transmission mechanism, rack, head sheave, suspended-weight rope and oil pumping bar. Two frames are set at two sides of hydraulic transmission mechanism symmetrically. A gear group and two head sheaves are set on each frame. Two gear groups are mated with racks set at two ends of hydraulic transmission mechanism respectively. The gear group draws the oil pumping bar through the suspended-weight rope and the head sheave. Thereinto, the hydraulic transmission mechanism comprises communicating vessel, piston and hydraulic pump. A hydraulic pump is fixed in the communicating vessel and two pistons are set in cavities at two ends of communicating vessel respectively. Driving liquid is poured between two pistons in cavities of communicating vessel. The invention is provided with simple structure, scientific and reasonable design, adjustable stroke and punching time, convenient maintenance, dismounting and use, safe operation, high liquid production volume, little energy consumption and low operating cost. It is also provided with higher innovation.

The invention discloses an intelligent carrying robot. The robot comprises a moving base, a carrying mechanical arm is connected to the moving base, and by the adoption of the technical scheme, the beneficial effects that walking is stable, moving and positioning are precise, bearing force is large, the brake function is achieved, steering and walking are integrated, the robot can adapt to small and narrow sites, the work range is large, no dead corners exist during work, the wrenching capacity is high, high-speed carrying of cargos can be achieved, and high-speed carrying of cargos about 50kg can be achieved.

The invention relates to a wheel structure, in particular to a novel buffering wheel structure. The novel buffering wheel structure comprises a fixing plate, an adjusting mechanism, a buffering mechanism, a movable device frame, a movable device, a rotating mechanism and a braking mechanism. The wheel height can be adjusted, the buffering effect is achieved, the moving direction is convenient to adjust, the braking function is achieved, and the novel buffering wheel structure is suitable for a wheel for a skateboard. The upper end of the adjusting mechanism is connected with the fixing plate, the lower end of the adjusting mechanism is connected with the buffering mechanism, the movable device frame is arranged on the buffering mechanism through the rotating mechanism, the movable device is mounted on the movable device frame, the braking mechanism penetrates through the movable device frame and the rotating mechanism and then is fixed to the buffering mechanism, and the upper end of the braking mechanism penetrates through the fixing plate.

The invention relates to the field of wheelchair equipment, in particular to a wheelchair with novel brake devices. The wheelchair comprises a frame, front wheels and rear wheels, the front wheels and the rear wheels are mounted on the lower portion of the frame, the brake devices are mounted on the upper portions of the rear wheels and comprise brake shells, the brake shells are mounted on the frame, parking brake strips are arranged in the brake shells and rotatably mounted on the inner walls of the brake shells, and friction wheels are arranged in the brake shells and can vertically move. The wheelchair with the novel brake devices can solve the problem that the moving speed of an existing wheelchair cannot be reduced.

The invention provides an improved structure of a drum brake. A pair of brake shoes is installed in a drum brake shell, one end of each brake shoe is provided with a semicircular arc surface, the brake shoes are installed on a rotating shaft and can rotate around the rotating shaft, and the rotating shaft is fixedly installed on the drum brake shell. The other ends of the pair of brake shoes are each made into an inward-concave tooth-shaped surface, an intermediate gear and a rocker arm shaft gear are installed between the two tooth-shaped surfaces, and the intermediate gear is engaged with the tooth-shaped surface of one brake shoe in contact with the intermediate gear. The rocker arm shaft gear is also engaged with the tooth-shaped surface of the other brake shoe in contact with the rocker arm shaft gear. The intermediate gear is engaged with the rocker arm shaft gear, the intermediate gear is installed on the rotating shaft in a sleeving manner and can rotate around the rotating shaft, and the rotating shaft is also fixedly installed on the drum brake shell. The rocker arm shaft gear is a part of the structure of a rocker arm shaft of a brake rocker arm assembly. When the rocker arm shaft rotates, the pair of brake shoes can be driven to form opening and closing movement, and therefore the brake function is achieved.

The invention provides a drive device, drive method and control device of an operation window of a ventilation cabinet. The drive device comprises an output shaft, a first-stage straight gear, a second-stage straight gear, a drive module and a fixing module. The output shaft is arranged on a center shaft of the ventilation cabinet in a sleeving manner and used for driving the center shaft to rotate. The first-stage straight gear is arranged on the output shaft in a sleeving manner and used for driving the output shaft to rotate. The second-stage straight gear is engaged with the first-stage straight gear and used for driving the first-stage straight gear to rotate. The drive module cooperates with the second-stage straight gear and is used for driving the second-stage straight gear to rotate. The fixing module is connected with the drive module and used for fixing the drive module to the top end of the ventilation cabinet. According to the drive device, the two stages of straight gearsare adopted for driving the center shaft on the ventilation cabinet, the two stages of straight gears achieve the aim of cooperating with different ventilation cabinets through the later changeable reduction ratio and good adaptability, and the drive device is suitable for most ventilation cabinets in the market and is wide in application range.

The invention provides an endoscopic operation portion. A groove guide rail is vertically arranged on a horizontal base of the endoscopic operation portion and is an arc-shaped guide rail surrounding a sleeve. The bottom surface of the endoscopic operation portion is a smooth slope surface arranged in the length direction. A brake wrench is horizontally arranged. One end of the brake wrench is slidably sleeved outside the upper end of the sleeve and abuts against the horizontal base. A brake guide column is vertically inserted into the groove guide rail, abuts against the bottom position of the smooth slope surface and is movably arranged in the length direction of the groove guide rail. The middle of the brake wrench is arranged on the brake guide column. A damping ring is horizontally arranged, sleeved outside the upper end of the sleeve, located between one end of an angle wrench and one end of the brake wrench and abuts against the angle wrench and the brake wrench. The other end of the brake wrench is exposed. The invention also provides a related endoscope. The endoscopic operation portion has a braking function, and allows an bending angle at the end of an insertion part to be constant, thereby facilitating operator to control the endoscope, and rotating the end of the insertion part by the axial direction, so that endoscope can be adjusted in place, and operation is convenient.

The invention relates to the technical field of hoisting cranes, in particular to an intelligent hoisting crane anti-collision system for a factory building. The system comprises a shell, a hoisting mechanism, a controller, a support beam body, a track body, a walking wheel body and a driving motor, wherein the track body is mounted at the top of the support beam body, an outer casing is bolted onthe surface of one side of the shell, and the driving motor is mounted in the outer casing. The system has a braking function, can shorten the sliding distance of the hoisting crane after shutdown, has an anti-collision protection function, prevents the hoisting crane and limiting structures from being damaged in the collision process, and solves the problem that potential safety hazards exist due to the fact that some existing hoisting cranes lack the braking function and the hoisting cranes can still slide for a certain distance because of inertia after shutdown, and the problem that the limiting structures are arranged on the two sides of a hoisting crane track and once the hoisting crane collides with the limiting structures, the limiting structures or the hoisting crane is extremelyprone to being damaged.

The invention discloses a bicycle capable of recovering kinetic energy and cooling. The bicycle structurally comprises a handlebar connecting rod, handlebar devices are symmetrically arranged at the two ends of the handlebar connecting rod, a front axle is fixedly connected to the center of the handlebar connecting rod, an upper supporting frame is connected to one side of the front axle in a running fit mode, a lower supporting frame is fixedly connected to the lower side of the upper supporting frame, a vertical pipe device is fixedly arranged on one side of the lower supporting frame, the vertical pipe device is fixedly connected with the upper supporting frame, a cushion device is arranged on the upper side of the vertical pipe device, a battery cell device is arranged in the verticalpipe device, a rear upper fork is fixedly arranged on one side of the vertical pipe device, and a brake device is arranged in a rear upper fork. According to the bicycle, the design of the handlebar device and the brake device is adopted so that a person can control braking without opening a palm, the safety of the bicycle is improved, kinetic energy can be recycled for power generation and reutilization during braking, and the environmental friendliness of the bicycle is improved; the design of the vertical pipe device and the cushion device is adopted so that a cushion can absorb heat for cooling; and through air guide of the air guide holes, the heat dissipation of the cushion is further improved, and the comfort of equipment is increased.

The invention relates to the technical field of advertising bags and suitcases, and discloses a travel suitcase pull rod device with a brake function. A mounting seat is fixedly mounted above the topend of a body, and an outer frame is movably connected to the outer side of the top end of the mounting seat. A push-pull rod is held by a hand, a driving rod in the push-pull rod is pulled to the upper portion from the bottom end, the driving rod slides to the upper end along the protruding texture on a rail, a pull ring connected with the rear end of the driving rod is changed from a default compression state into an extension state, and a limiting buckle movably connected with the pull ring is influenced by reverse acting force to gradually slide towards the middle, and slides along the edge of a pushing piece. When a groove in the pushing piece is opposite to a protruding block on the limiting buckle, the limiting buckle is inserted into the pushing piece, and a magnetic block synchronously attracts a small special-shaped magnet arranged on the rail at the right end, so that the device has the functions of speed reduction and braking, the effects of saving labor and being easy to control are achieved, and convenience is brought to users.

The invention discloses lifting-free self-elevating offshore oil well testing equipment, which includes a winch module and a power module providing kinetic energy for the winch module. The winch module includes a winch base, a pair of double-acting hydraulic cylinders capable of ascending and descending synchronously are vertically arranged in the middle of the upper part of the winch base, uppercross beams are arranged at the tops of the pair of double-acting hydraulic cylinders, two fixed pulleys are arranged side by side at the bottom of each upper cross beam, a hydraulic well testing winch is arranged on the one side of the upper part of the winch base, a hydraulic motor is arranged on the other side, opposite to the hydraulic well testing winch, of the upper part of the winch base, and a winding reel is arranged on an output shaft of the hydraulic motor. The lifting-free self-elevating offshore oil well testing equipment has the own lifting function, well testing operation can beconducted without waiting in line for lifting equipment on an offshore oil platform, through the well testing equipment, a lubricator can be lifted over a wellhead, and the restriction on well testing operation by the offshore oil platform facility layout can be lifted without no longer needing to fix the top sheave and the ground pulley through a Christmas tree.

The invention provides an improved structure of a drum brake. The improved structure is used for changing the original working mode of the drum brake that a brake shoe is directly driven by a cam to expand. According to the structure, a pair of brake shoes is installed in a drum brake shell, one end of each brake shoe is provided with a semicircular arc surface, the brake shoes are installed on a rotating shaft and can rotate around the rotating shaft, and the rotating shaft is fixedly installed on the drum brake shell; the other end of each brake shoe is made into a convex tooth-shaped surface, a rack is installed between the two tooth-shaped surfaces, the rack is meshed with the pair of brake shoes and a rocker arm shaft gear, and the rocker arm shaft gear is a part of the structure of a rocker arm shaft of a brake rocker arm assembly; and when the rocker arm shaft rotates, the pair of brake shoes can be driven to do opening and closing movement, and therefore the braking function is achieved.

The invention provides an improved structure of a drum brake. A pair of brake shoes are installed in a drum brake shell, one end of each brake shoe is rotationally positioned in the shell, and a kidney-shaped columnar brake gear driven by a brake rocker arm assembly to rotate is arranged in an end gap of the other ends of the brake shoes; Pin roller gears are meshed between the kidney-shaped columnar brake gear and the end faces of the brake shoes on the two sides; and rotating shafts of the pin roller gears are installed in kidney-shaped holes of connecting pieces and can rotate and move in the kidney-shaped holes, and the connecting pieces are riveted and fixed to the pair of brake shoes through rivets. When the brake rocker arm assembly drives the kidney-shaped columnar brake gear to rotate, the kidney-shaped columnar brake gear drives two pin rollers to rotate and move, then the pair of brake shoes are driven to do opening and closing motion, and therefore the brake function is achieved. The abutting faces, abutting against the pin roller gears, of the brake shoes are each a combination of an outwards-protruding tooth-shaped face and an inwards-concave arc face, each outwards-protruding tooth-shaped face is used for being meshed with the corresponding pin roller gear, and each inwards-concave arc face is used for being in rolling contact with the corresponding pin roller gear.