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.

The present invention provides an electric winch and comprises a drum wheel unit (1), an automatic brake unit (2), a gearbox unit, a cable-guard (4) and a motor (5). The automatic brake unit is inserted in the drum wheel unit, the gearbox unit is connected with the automatic brake unit, and the cable-guard is arranged on the drum wheel unit. With friction contact between a spring of the automatic brake unit and the drum wheel, the present invention can prevent inversion when retaking the cable and can brake automatically in time even if inversion is occurred.

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.

The invention provides a chuck expansion type metal hard tube rotary cutting machine. The rotary cutting machine comprises a supporting device, a sleeve device, a cutting device and at least four expansion devices, wherein a plurality of expansion devices are sequentially connected and arranged on the same axis through connecting frames, two expansion devices located at two ends are connected withthe supporting device, every two adjacent expansion devices are connected by sleeve pipes of the sleeve device in a sleeving mode, and the cutting device is arranged between two adjacent expansion devices. The expansion devices can expand from the inside of the metal hard tube to achieve the purpose of fixing the metal hard tube, and all lengths of the metal hard tube can be fixed, so that an existing equipment which can only clamp and fix the cut part is replaced, the clamping force is more uniform, and the clamping deformation is prevented; the expansion devices can drive the metal hard tube to rotate together, and then the cutting wall thickness distance can be achieved through feeding movement of a cutting knife, so that the cutting task can be completed, a cutting mode that an existing cutting grinding wheel pieces enter the inner part of the metal hard tube is replaced, and the situation that a cut surface is burned and worn is avoided.

The invention provides an alternating current-direct current parallel system seamless switching control method based on VSC-HVDC. According to the method, the phase shift angle delta, relative to a voltage vector Uw of a wind power plant PCC point, of a voltage vector Us of a power grid connected with an alternating current circuit is adjusted by controlling a synchronous rotation angle theta of a VSC-HVDC wind power plant side convertor station so that active power transmitted by an alternating current power transmission circuit can be controlled, and the rest of the active power is completely absorbed by a VSC-HVDC power transmission system. As the phase position of the voltage of the wind power plant PCC point is controlled to be ahead of the phase position of the voltage of the alternating current power grid all the time, the current of the alternating current power transmission circuit will not turn over; when the alternating current circuit stops operating, any external signal does not need to be detected, the control mode of the VSC-HVDC wind power plant side convertor station does not need to be changed either, and when the alternating current-direct current parallel operation mode is converted into the operation mode that wind power has access to the VSC-HVDC independently, all wind power is absorbed automatically.

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 hall-free ceiling fan motor controller and a starting method thereof. Power is supplied by a power supply module, and an SOC control module controls a hall-free motor drive module to drive a hall-free motor to be started. The method comprises the steps that a, an inverter circuit drives any two phases of the hall-free motor to be switched on, thereby enabling a rotor to be located; b, an angle speed value is preset, subareas are determined according to the preset angle speed value, s switching sequence of six MOS transistors is obtained, a rotating magnetic field is generated, and the rotor is driven to rotate under the effect of the rotating magnetic field; and c, the SOC control module controls the hall-free motor drive module to be switched from an open loop state to a closed loop state, signals of a closed loop circuit are received, the location of the rotor is detected and the signals are fed back to the SOC control module for closed loop control. According to the design of the controller and the method, the motor can be started stably; reverse rotation is avoided; the hall-free brushless motor does not need to replace a hall sensor and an electric brush; the service life is greatly increased; and moreover, the labour force is reduced.

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 discloses an automobile brake pad machining device with a disc sticking degree detection function in a preset environment, and relates to the technical field of automobile part detection. The equipment particularly comprises a base, an eccentric rotating plate mechanism, an enabling mechanism, a hydraulic range extending mechanism and a self-centering eccentric wheel clamp, wherein one side of the bottom end of the base is provided with a control end, and the enabling mechanism is arranged on one side of the eccentric rotating plate mechanism. According to the automobile brake pad machining equipment with the disc sticking degree detection function in the preset environment, by arranging the enabling mechanism, the problem that special equipment for detecting the sticking degree of a brake pad in different preset environments lacks in the prior art is perfectly solved, a limiting baffle at the opening end of the enabling mechanism can position and fix a rotating plate rotating to the designated position, the enabling of different preset environments can be conducted on the surface of the rotating plate through a spray head by means the a control end, actual frequent meeting working conditions such as silt, rainwater and ice and snow can be simulated according to actual experiment requirements, variables of the brake pad experiment are increased, and the credibility of an experiment result is increased.

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 novel energy-saving elevator using a super capacitor. The novel energy-saving elevator comprises a cage, a traction device, an electric motor, and a control system; the control system comprises a direct current bus, a brake unit, an electric motor driving circuit, a charging circuit, a discharging circuit, and at least one super capacitor assembly; the charging circuit and the discharging circuit are connected with the super capacitor assembly through a direct current (DC) / DC bidirectional voltage converter; a sampling control driving module is used, and after operation, the voltage of the bus and the super capacitor are detected by using a pulse width modulation conversion control circuit, and voltage reduction charging and voltage raising discharging pulse-width modulation (PWM) control signals are output to the charging circuit and the discharging circuit; when the elevator reduces speed, ascends in an underloading way and descends in an overloading way, the electricity energy is stored by using the super capacitor assembly during electricity generation; and when the elevator runs, the super capacitor assembly release electricity energy to the motor, and by using direct current electricity energy stored on the super capacitor assembly, an emergency power supply is provided for the elevator through a DC / alternated current (AC) module.

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 relates to a kind of structure changing of multithread embroidering machine, which can replace embroidering line color real time automatically and tangential, includes main drive shaft. There is handpiece more than one, ring tank under handpiece. Main drive shaft as said has driving mechanism, attached to running gear, the other end needle bar: the ring tank has ring framework. Thus, this invention is of proper designing, simple structure, convenient fixing, easy changing and preserving. It is no not reversaling, turning calm, improving work efficiency significantly, reducing labor intensity. It is of compact structure, good locking character. It can improve embroidering producing precision, change rolling to rotating. It greatly improves stability and consistency and embroidering precision, processing character, shorts production cycle, lows cost.

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.

This invention relates to a method for realizing CDMA signal clipping capable of realizing joint cancel to multiple peak values of input signals characterizing in computing suitable windowed positionto carry out jointly windowed process to multiple peak values to realize the cancel to the peak values, among which, the windowed phase and amplitude are determined by those of peak values of the inputsignals, said windowed phase is determined by the derivate of said windowed function, which effectively reduces PAR of the system and reduces the resource demand for peak value process.

The invention discloses an abrasion-proof composite solid wood floor. A transparent abrasion-proof layer is arranged on the surface layer of the composite solid wood floor, and is formed by dissolving nanoscale aluminium oxide in polyurethane coating and coating the mixed solution on the surface layer of the composite solid wood floor. The abrasion-proof composite solid wood floor has the advantages that when paint is coated on the traditional abrasion-proof layer, the abrasion-proof effect is realized by quantity accumulation, the paint needs to be painted repeatedly, and the surface blurring is caused; while according to the abrasion-proof composite solid wood floor disclosed by the invention, the nanoscale aluminium oxide (superhard metal) is uniformly dissolved in the polyurethane coating, the abrasion-proof standard can be reached by one-time coating, and the surface layer is transparent; the abrasion-proof effect of the surface layer can reach more than 6000 revolutions, and the service life of a product is longer than 30 years.

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 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.

A kite spool belongs to the field of entertainment products. It is composed of spool, spool gear, spool ratchet, bearing, center shaft, support arm, strap ring, support arm handle, support arm handle shaft, pawl adjustment ring, belt groove, belt, threader, threading block, ratchet Claws, pawl shafts, extension springs, rocker arms, etc., one side of the reel is provided with a reel ratchet concentric with the reel, and the other side of the reel is provided with a reel gear concentric with the reel; The shaft hole runs through the spool ratchet, the spool and the spool gear; the spool is fixed on the central shaft through the cooperation of the spool shaft hole and a bearing; the end of the central shaft close to the spool ratchet is fixed on the support arm; the support arm is Hollow structure. The design of the overall structure of the kite spool is scientific and reasonable, which well solves the problems that the existing kite spool cannot quickly stop setting out the line and the process of taking up the line is laborious and the like during use.

The invention discloses one-in and one-out cigarette carton continuous hoisting machine equipment. The one-in and one-out cigarette carton continuous hoisting machine equipment comprises a rack, a driving assembly, a first passing wheel assembly, a second passing wheel assembly, a driven assembly, a tensioning assembly and a conveying device; the driving assembly provides a power source for hoisting cigarette pieces; the driven assembly is connected with the driving assembly through a first rubber chain and a second rubber chain and is matched with the driving assembly to finish continuous hoisting action on materials; the conveying device is mainly used for continuously hoisting and conveying cigarette packets conveyed from the outside to a certain height, the first rubber chain and the second rubber chain are adopted for conveying, noise is low, and the bearing capacity is high; and the tensioning assembly is mainly used for enabling the hoisting machine to be in a tensioning state all the time after the hoisting machine is used for a long time, and accidents caused by loosening of the chain in the hoisting process are avoided. The one-in and one-out cigarette carton continuous hoisting machine equipment disclosed by the invention can be used for continuously hoisting and is high in hoisting efficiency. The invention further discloses a one-in and one-out cigarette carton continuous hoisting method.