40results about How to "No inversion" patented technology

The invention relates to a blade-type energy recovery shock absorber which utilizes a machine-electricity-fluid mixed system. The blade-type energy recovery shock absorber comprises a generator, a hydraulic motor, an energy accumulator, a hydraulic check oil way and a blade-type shock absorber assembly. By adopting the shock absorber, the linear motion between sprung mass and unsprung mass of a suspension system caused by unevenness of the ground is changed into hydraulic flow with invariable direction to drive the hydraulic motor to rotate, the hydraulic motor drives the generator to generate electricity, so that the vibration mechanical energy is converted into electric energy and recycled; the hydraulic check oil way consists of a hydraulic pipeline and a check valve system; the damping force required by the shock absorber system is mainly provided by the counter-acting force of counter electromotive force generated during operation of the generator, and active or semi-active control on the damping force of the shock absorber is realized by controlling the load of the generator. The blade-type energy recover shock absorber can be applied to a tracked vehicle in replacement of a traditional blade-type shock absorber, and is especially suitable for tracked vehicles with large electrical load. The vibration energy is recovered while the driving comfort is improved.

Disclosed is a polyurethane blade having an edge portion and a backup portion that have different compositions from each other. The polyurethane that forms the edge portion has higher hardness than the polyurethane that forms the backup portion. The polyurethane that forms the backup portion has a JIS-A hardness of 65-80, while the polyurethane that forms the edge portion has (1) a JIS-A hardness of 75-100 and a tan d peak temperature of from -20 DEG C to -1 DEG C or (2) a JIS-A hardness of 85-100 and a tan d peak temperature of from -20 DEG C to 60 DEG C. The blade does not suffer from blade inversion or blade squealing even in cases where the hardness of a coating film of an image carrier or the printing speed is increased.

An overturnable scopper is composed of motor, worm-gear speed reducer and its holder fixed to swinging arm of robot, bevel gear A fixed to output shaft of speed reducer, rotary axle, bevel gear B fixed to said rotary axle, and scooper fixed to said rotary axle.

The invention discloses a turning device for an output shaft of a parallel-axis gearbox. The turning machine consists of a frame body, a left-end bearing block, a turning stand, a right-end bearing block, a coupling, a speed reducer and pedal switches and is characterized in that the left-end bearing block and the right-end bearing block respectively penetrate into a left-end shaft head and a right-end shaft head of the turning stand and are arranged at corresponding positions of the frame body and are fixed; the coupling is detached and is respectively arranged on the right-end shaft head of the turning stand and an output shaft of the speed reducer; the speed reducer is placed at the corresponding position of the frame body; the coupling is combined and then the speed reducer is fastened on the frame body. The output shaft and an output gear which are subjected to press mounting are placed on the turning stand by workers, the forward pedal switch is treaded and the output shaft of the speed reducer drives the turning stand to rotate forwards by the coupling and automatically stops when reaching the designated position; when the assembly is finished, the workers tread the backward pedal switch and the output shaft of the speed reducer drives the turning stand to rotate backwards by the coupling and automatically stops when reaching the designated position, and the output shaft and the output gear which are subjected to press mounting are moved away by the workers.

The invention relates to a Semiconductor structure composed from silicon carbide or kinsmanship material, which is provided with a wafer used as substrate and contact of an highness guide tunnel ahead. So use an N-type wafer, when epitaxial grow it will be adulterate reverse turn. When use a P-type doped semi-conducting material (32) to coating (P-type denotation ) a N-type adulterate wafer which used as substrate (30) for use to produce the semiconductor structure, before the P -type epitaxy immit N-type to the wafer so as to constitute the tunnel ahead contacts. Therefore, the IGBT-type component can be produced.

The invention provides a motor system started without reversing and relates to the field of motor systems. The invention provides the motor system started without reversing, which is compact in structure, is capable of effectively preventing a motor from reversing when started, and thus effectively and thoroughly solves the bottleneck problem that a three-phase frequency conversion permanent magnet synchronous motor firstly reverses and then rotates forwards and the popularization and application of the frequency conversion speed regulation permanent magnet synchronous motor is restricted. The motor system comprises a frequency conversion speed regulator and a three-phase frequency conversion permanent magnet synchronous motor. The air gap magnetic flux of the three-phase frequency conversion permanent magnet synchronous motor is reasonably controlled, that is to say, when the current of the frequency conversion permanent magnet synchronous motor reaches a rated value, the air gap magnetic flux should be in a saturation state, and then, the constructive deviation of the frequency conversion speed regulator relative to the specific position of a rotor of the three-phase frequency conversion permanent magnet synchronous motor can be limited within +/- 30 deg, so that the permanent magnet synchronous motor is 100% prevented from firstly reversing and then rotating forwards when started.

The invention discloses a thermostatic handle used for a thermostatic valve. A limiting ring (4) is arranged between a handle outer shell (1) and a heart body (3) of the thermostatic handle, the lower end of the handle outer shell (1) is capable of breaking away from the upper portion of the limiting ring (4) in the axial direction, so that the handle outer shell (1) and the limiting ring (4) are capable of changing the relative position in the circumferential direction conveniently and then getting close and being fixed in the axial direction, and the limiting ring (4) is movably sleeved outside the circumference of the heart body (3). Between the inner wall of the lower portion of the limiting ring (4) and the outer wall of the circumference of the heart body (3), one is provided with a limiting groove (41), the other is provided with a limiting baffle block (31) capable of being arranged in the limiting groove (41), and the limiting groove (41) and the limiting baffle block (31) are capable of being separated along the axial direction of the limiting ring (4). Through the structural design of the thermostatic handle, the problems of a reverse rotation phenomenon caused by failure of thread self-locking and inaccurate temperature control caused by manual rotation by a child can be avoided, and therefore accuracy of temperature control is improved. In addition, energy waste or frost due to the fact that the set temperature is too high or too low is avoided.

The invention discloses a chain hoist, belonging to the technical field of hoisting device design, comprising an upper hook, an upper spring buckle, a chain wheel box, a chain, a lower hook, a lower spring buckle, and the upper hook is fixed on the chain wheel box At the top, the whole device can be suspended on the workshop truss by the upper hook, the sprocket is installed inside the sprocket box, the sprocket shaft is supported on the box body of the sprocket box, and the chain goes around the sprocket in the inner cavity of the sprocket box. The bottom of the chain is fixed with a lower hook. When lifting a heavy object, the lower hook hooks the heavy object, and the heavy object can be lifted to the desired position by pulling the chain. The chain hoist disclosed by the invention has a simple structure and is easy to operate , low cost, good safety, the sprocket will not reverse, the hook is equipped with a spring buckle, and the spring buckle is equipped with a scroll spring, and the heavy object is not easy to fall during transportation. The hook is forged with heat treatment. Structure, high strength, strong bearing capacity and long service life.

The invention discloses an oil seal overturning preventive mounting tool and an assembling method. The oil seal overturning preventive mounting tool comprises a press-in sleeve, a positioning sleeve for positioning an oil seal, and a guide sleeve for guiding and assembling the oil seal to the positioning sleeve, wherein the positioning sleeve is arranged at the end part of a crankshaft; and the oil seal can be mounted to the crankshaft in a press fitting manner through the press-in sleeve in the axial direction of the positioning sleeve. According to the technical scheme, the assembling tool improves the assembling efficiency; an oil seal lip port of the oil seal in assembling process cannot be negatively rotated to be damaged, and thus the product assembling quality can be ensured.

The invention discloses a Hall-free direct-current brushless motor controller and a motor starting method. The motor controller is characterized in that the output end of an MCU control module is connected with the input end of a pre-driving module, the output end of the pre-driving module is connected with the input end of a driving module, and the output end of the driving module is connected with the three-phase input end of a Hall-free motor; the driving module comprises a full-bridge circuit composed of three driving branches integrated with PMOS tubes and NMOS tubes, the input end of the full-bridge circuit is connected with the output end of the pre-driving circuit, and the output end of the full-bridge circuit is connected with the three-phase input end of the Hall-free motor; the input end of a current sampling circuit is connected with the output end of the full-bridge circuit, and the output end of the current sampling circuit is connected with the MCU control module. According to the invention, the Hall-free brushless direct current motor can be rapidly started, and the phenomena of reverse rotation and jitter can be avoided. There is no need for a Hall sensor to provide rotor position signals. The hall-free direct-current brushless motor controller and the motor starting method have the characteristics of long service life of the motor, better control effect, low maintenance cost and the like.

The invention discloses a tensioning device of a belt conveyor and a use method of the tensioning device and relates to the technical field of conveyors. The tensioning device of the belt conveyor comprises a tensioning device rack, a head funnel, a head rack, a head balance weight box, a transferring station concrete column, a tail buffering bed and a heavy punch tower. A head roller is arrangedon the head rack. According to the tensioning device of the belt conveyor and the use method of the tensioning device, multiple pulleys are reasonably combined within the limited space, diverted transferring of tensioning force is achieved, the tensioning tower is flexibly arranged, and the conflict that the equipment mounting space is staggered is solved. Meanwhile, the heavy punch type tensioning force is constant, the tensioning device is safe and effective, and when the belt conveyor encounters with the situation that the space and height are limited, the tensioning equipment mounting space is staggered and interferes, and the tensioning manner is hard to design, the scientific and reasonable method is adopted, and automatic equipment high in cost and hard to maintain is prevented frombeing forced to be used. It is guaranteed that the tensioning manner is safe and effective, and the designing, manufacturing, mounting and maintaining cost is effectively reduced.

The invention provides a pressure generation deceleration strip device based on gas-liquid coupling. The pressure generation deceleration strip device comprises a deceleration strip and further comprises an air pressure transmission device arranged on the lower portion of the deceleration strip, a hydraulic transmission device, an automatic control exhaust device and an electric power device, wherein the hydraulic transmission device, the automatic control exhaust device and the electric power device are arranged at one or two ends of the deceleration strip. The air pressure transmission device comprises an air pressure cylinder arranged below the deceleration strip and an air guiding pipe communicating with the bottom of the air pressure cylinder. The hydraulic generation device comprisesa pressure tank, a generator and a water storage tank. The automatic control exhaust device comprises an electromagnetic automatic exhaust valve arranged on the upper portion of the pressure tank, aliquid level sensor arranged on the upper portion of the water storage tank and an automatic exhaust valve arranged at the top of the water storage tank, and a single chip microcomputer is arranged between the electromagnetic automatic exhaust valve and the liquid level sensor. The electric power device comprises a transformer connected with the generator and a storage battery connected with the transformer, and the storage battery is connected with electrical equipment.

The invention relates to a liquid external combustion engine. The liquid external combustion engine mainly comprises a gear pump A, a connecting device, a gear pump B, a heater, a circulation pipeline, a condenser and a pressure reducing device, wherein an output shaft of the gear pump A is connected with one end of the connecting device; an output shaft of the gear pump B is connected to the other end of the connecting device; connecting openings at the two ends of the heater are correspondingly connected with an outlet of the gear pump B and an inlet of the gear pump A; the circulation pipeline is connected between the inlet of the gear pump A and an inlet of the gear pump B; and the condenser and the pressure reducing device are arranged on the circulation pipeline. The gear pump A andthe gear pump B need to meet the condition that P<1>W<1> is not equal to P<2>W<2>, wherein P<1> and P<2> are the displacement of the gear pump A and the gear pump B correspondingly, and W<1>and W<2>are the rotating speed of the gear pump A and the gear pump B correspondingly. The liquid external combustion engine further comprises a fluid supplementing system and an overflow loop. The liquid external combustion engine utilizes the pressure difference inside the two gear pumps to form internal circulation for power output, the overall size is more compact, and the thermal efficiency is higher.

The invention discloses a continuously variable transmission for a bicycle. The continuously variable transmission comprises a rotating shaft; the rotating shaft successively passes through a first speed change disc, a spring, an intermediate shaft, a first sliding gear and a second sliding gear; the spring is arranged in the central circular hole of the first speed change disc; one end of the intermediate shaft is in contact with the spring; an outer wall of the other end passes through the center of a second speed change disc, and the other end is in contact with one end of the first sliding gear; the other end of the first sliding gear is in contact with one end of the second sliding gear; the other end of the second sliding gear is connected with a deflector rod; the first sliding gear is sleeved on an inner side of the central circular hole of the intermediate shaft; the edge of the first speed change disc is connected with a lantern ring at one end of a long flying rod; the other end of the long flying rod is connected with a flywheel through a pin rod; the central lantern ring of the long flying rod is connected with a lantern ring at one end of a short flying rod through the pin rod; and the edge of the second speed change disc is connected with a lantern ring at the other end of the short flying rod through the pin rod. By the continuously variable transmission for the bicycle, the problem that an existing transmission needs step-by-step speed change is solved.

A kite reel belongs to the field of entertaining products and is composed of a drum, a drum gear, a drum ratchet wheel, a bearing, a center shaft, a support arm, a back strap ring, a support arm handle, a support arm handle shaft, a pawl adjusting ring, a belt groove, a belt, a threading device, a threading block, a pawl, a pawl shaft, a tension spring, a rocker and the like; one side of the drumis provided with the drum ratchet wheel concentric to the drum, and the other side of the drum is provided with the drum gear concentric to the drum; a drum shaft hole runs through the drum ratchet wheel, the drum and the drum gear; the drum is fixed to the center shaft through cooperation of the drum shaft hole with the bearing; the end, close to the drum ratchet wheel, of the center shaft is fixed to the support arm; the support arm is of hollow structure. The kite reel has scientific and reasonable overall structural design, and the problems are well solved that, for instance, an existing kite reel fails to quickly stop unreeling during use, and reeling is strenuous.

The invention discloses a connecting piece special for loading and unloading of a municipal road garbage truck, which comprises a machine plate, a machine connecting block, a machine pivot, a rotating head, a connecting line, a first supporting plate, a first vertical supporting plate, a fixing bolt, a connecting groove plate and a movable rod; a second rolling servo rod is arranged at one end of the machine plate, and the machine connecting block is arranged at one end of the second rolling servo rod; one end of the machine connecting block is provided with a servo motor, one end of the servo motor is provided with the machine pivot, one end of the machine pivot is provided with the rotating head, one end of the rotating head is provided with a machine outer plate, one end of the machine outer plate is provided with a first rolling servo rod, one end of the first rolling servo rod is provided with the connecting line, and one end of the connecting line is provided with a driving guide rod; and a first hydraulic cylinder is arranged at one end of the driving guide rod, a first movable bolt head is arranged at one end of the first hydraulic cylinder, the first supporting plate is arranged at the upper end of the first movable bolt head, and the first vertical supporting plate is arranged at one end of the first supporting plate. The mechanism has the characteristics of simplicity in operation, low assembly cost and reduced cost.