61results about How to "Realize infinitely variable speed" patented technology

The invention provides a six-freedom-degree spray coating robot which comprises a base, a waist joint, a big arm joint, a small arm joint, a three-freedom-degree obliquely crossed wrist, a spray gun support, flanges, bearings, a plurality of first drive mechanisms and second drive mechanisms, wherein the waist joint is movably fixed to the base, the big arm joint is movably fixed to the waist joint, the small arm joint is movably fixed to the big arm joint, the three-freedom-degree obliquely crossed base is movably fixed to the small arm joint, the spray gun support is connected to the tail end of the three-freedom-degree obliquely crossed wrist, and the flanges and the bearings are movably connected among all the joints or between the joints and the wrist. The first drive mechanisms are used for driving the waist joint, the big arm joint and the small arm joint to work, and the second drive mechanisms are used for driving the three-freedom-degree obliquely crossed wrist to work. Each first drive mechanism comprises a first servo motor and an RV speed reducer. Each second drive mechanism comprises a second servo motor, a planetary reducer, a hollow transmission shaft and a gear pair, wherein the planetary reducer is connected with the second servo motor, the hollow transmission shaft is connected with the planetary reducer in a matched mode, and the gear pair is arranged in the three-freedom-degree obliquely crossed wrist and connected with the hollow transmission shaft.

The invention discloses a novel energy-saving electric loader drive control system and control method, and belongs to the technical field of shoveling engineering machinery vehicles. A control handleis connected with a vehicle control unit (VCU); the VCU is electrically connected with a motor controller I, a motor controller II and a power battery controller BMS; the motor controller I is in control connection with a double-output-shaft walking motor, and the double-output-shaft walking motor drives front wheels and rear wheels through a front transmission shaft and a rear transmission shaft;the motor controller II is in control connection with a hydraulic pump control motor, and the hydraulic pump control motor drives a hydraulic pump to provide power for a hydraulic system of a loader;and the power battery controller BMS is in control connection with a power battery pack, and the power battery pack supplies power to the double-output-shaft walking motor and the hydraulic pump control motor. The motor is in a mode of a double-output-shaft structure, the whole machine is easy to arrange, the structure is simple and convenient, the reliability is high, the problems that an existing loader is complex in structure and control are solved, the working efficiency is high, and the good energy-saving effect is achieved.

The invention discloses a continuously-variable transmission for a mechanical direct-drive hydraulic double-control tracked vehicle. According to the continuously variable transmission, a power input portion inputs power to an advance and retreat gear deceleration portion, the advance and retreat gear deceleration portion transmits power to a differential planetary transmission stepless speed change portion through an intermediate power transmission portion, then, the differential planetary transmission stepless speed change portion outputs the power to a drive transition deceleration transmission portion, and finally the power is transmitted to a left side caterpillar band drive portion and a right side caterpillar band drive portion, wherein an advance and retreat gear control portion is used for gear switching of the advance and retreat gear deceleration portion. Double self-locking type hydraulic motors are arranged in the differential planetary transmission stepless speed change portion, so that mechanical direct drive, hydraulic stepless speed regulation and steering control are achieved. When the double self-locking type hydraulic motors are in the same working state, the tracked vehicle achieves mechanical direct drive and hydraulic stepless speed regulation drive; when the double self-locking type hydraulic motors are not in the same working state, rotating speed difference happens between left side caterpillar band output wheels and right side caterpillar band output wheels, hydraulic control steering is achieved, transmission and steering of the tracked vehicle are integrated, operation is easy and convenient to perform, and the tracked vehicle is easy to drive.

The invention provides a novel motor which comprise a motor casing, a stator and a cup-shaped rotor. The novel motor is characterized in that the cup-shaped rotor is provided with a magnetized multi-pole permanent magnet which is arranged on the cup-shaped cylinder wall; and the stator is provided with a stator outer sleeve which is arranged in a magnetic conductive cylinder, a coil skeleton is arranged in a stator inner sleeve, a plurality of groups of hollow coils are configured on the coil skeleton, the coils are configured at intervals, that is, the coils are arranged opposite to the inner peripheral surface of the permanent magnet and opposite to the outer peripheral surface of the permanent magnet simultaneously. The novel motor has the advantages that stator and rotor structures of a traditional motor are changed, and interaction of the coils with the permanent magnet is improved greatly by optimizing magnetic field distribution on coil tracks, accordingly, the motor efficiency is improved greatly, the starting current is reduced, and the power consumption is decreased. The stator coils are hollow coils, iron losses are decreased, the motor weight is lightened, the slot effect is removed, and the motor temperature rising is decreased simultaneously.

The invention relates to a planetary reduction stepless variable speed coupling box of a new energy automobile. The planetary reduction stepless variable speed coupling box comprises a main drive loop formed by motors, planetary reduction mechanisms and a differential mechanism, wherein the motors are connected with sun wheels of the planetary reduction mechanisms through rotor frames to be used as power input, and planet carriers of the planetary reduction mechanisms are connected with the differential mechanism to be used as power output drive wheels. The planetary reduction stepless variable speed coupling box of the new energy automobile further comprises an auxiliary drive device for driving inner gear rings of the planetary reduction mechanisms to rotate. Compared with the prior art, the main drive loop can carry out gear switching of different speed ratios on a planet gearbox according to the working conditions of the inner gear rings, and therefore the whole gear shifting process is continuous, stable and free of impact force, so that stepless variable speed of the automobile in climbing, heavy-load starting, common-load driving at the moderate speed and light-load driving at high speed can be achieved.

The invention discloses a stepless speed change structure for planetary gears, which has the advantages of high torque bearing capability, no slipping, simple structure, less parts, low manufacture and maintenance costs, superior long service life and wide speed change range, and can be applied to heavy-duty vehicles, large-scale vehicles and mini-type vehicles. Based on the structural characteristics of the planetary gears, the stepless speed change of power input and output speeds is realized when the revolution ratio between a gear ring and a sun gear is changed by changing the rotational speed of a planetary gear rack. The stepless speed change structure comprises the gear ring, the planetary gear rack and the sun gear, wherein the gear ring is connected with the power input shaft of a vehicle engine; the sun gear is connected with the power output shaft; the planetary gears are mounted on the planetary gear rack and are connected with a power adjusting control device capable of changing the speeds of the planetary gears; and the power adjusting control device comprises a control power input shaft and a control gear arranged at one end of the control power input shaft.

The invention relates to the technical field of engineering machines, and discloses a hydraulic driving system, a base plate and a mechanical traveling device. The hydraulic driving system comprises a multi-power system, a power composite oil path and traveling units, wherein the multi-power system comprises a plurality of power sources and a driving oil pump group which is connected with each power source, and the driving oil pump groups are used for converting power provided by a power system into hydraulic driving force; the power composite oil path is used for compounding the hydraulic driving force of the driving oil pump groups which are connected with the power sources to a main oil path; and the traveling units are connected with the power composite oil path and are driven to travel by the hydraulic driving force. According to the hydraulic driving system, power of the multi-power system is converted into the hydraulic driving force, and each traveling unit is driven to move by utilizing the hydraulic driving force, so that each traveling unit can be driven to travel; and the integral driving system is stable in motion, simple in layout of an integral pipeline and convenient to operate, and infinitely variable speed is realized.

The invention provides a plastic bucket and a plastic bucket feeding, discharging and conveying system. The plastic bucket is characterized in that a bucket body of the plastic bucket is provided with a feed inlet, a discharge outlet and discharge doors; and the bucket body is arranged in the middle of a frame-shaped base, the upper portion of the frame-shaped base is provided with a sling matched with an aerial conveying line, the bottom of the frame-shaped base is provided with a supporting portion matched with a ground conveying line, and the first discharge door and the second discharge door which are hinged to the discharge outlet are closed through the self weight. The bottom of each of two frames of a discharge mechanism is provided with a motor, wherein the motor drives a guide rail in a lifting frame assembly to do up-down reciprocating motion through a chain wheel and a chain, and the lifting frame assembly comprises a lifting arm extending towards the middle to be out of the frame. The two lifting arms are matched with rollers on inclined opening arms of the first discharge door and the second discharge door correspondingly when ascending, so that the first discharge door and the second discharge door are lifted up. The plastic bucket not only can achieve aerial conveying, but also can operate on the ground conveying line, and the plastic bucket feeding, discharging and conveying system is flexible to use and high in conveying efficiency.

The invention relates to the technical field of healthy products, in particular to a healthy sleep assisting machine. The healthy sleep assisting machine comprises a base, a cover, and a direct current motor, fan blades and a controller which are arranged in a cavity surrounded by the base and the cover, wherein the cover is formed by stacking an upper cover and a lower cover; the upper cover and the lower cover can rotate relatively; the lower cover is fixedly connected with the base; the upper cover is provided with first adjustment air holes; the lower cover is provided with second adjustment air holes; the first adjustment air holes and the second adjustment air holes are crosswise arranged, so that the sizes of overlapping regions among the first adjustment air holes and the second adjustment air holes can be adjusted when the upper cover and the lower cover rotate relatively; the controller controls the direct current motor according to a pulse width modulation signal; the direct current motor drives the fan blades to rotate; air generated by the fan blades is blown out from ventilating openings formed in the cover. The healthy sleep assisting machine make a purely natural wind sound based on a physical principle, and the air volume can be adjusted randomly; furthermore, the direct current motor is controlled through the pulse width modulation signal, so as to realize stepless speed change and obtain various working modes; the healthy sleep assisting machine is good in sleep assisting effect and extremely high in adaptability to a human body.

The invention relates to a gearbox of an electric tricycle. Automatic infinitely variable speed of the gearbox is realized by conducting gear transmission between a motor and an output shaft and introducing an automatic transmission and the like, the electric tricycle is enabled to run safely under the conditions of load bearing, climbing and the like, and simplicity in operation and stability and reliability in performance are achieved. The gearbox is driven by the motor and comprises the output shaft and a box body, the box body comprises an upper cover and a lower cover, and the automatic transmission, a drive gear, a first intermediate gear set, a second intermediate gear set and a driven gear are arranged in the box body. The automatic transmission and the motor are coaxially connected through a spline, and a transmission gear is fixed onto the automatic transmission. The drive gear and the motor are coaxially connected through a spline and positioned above the automatic transmission. The first intermediate gear set comprises a limiting spline, an upper gear, a middle gear and a lower gear, and the upper gear, the middle gear and the lower gear are concentric and coaxial and fixedly sleeve the limiting spline. The second intermediate gear set comprises a rotating shaft, a first intermediate gear and a second intermediate gear, and the first intermediate gear and the second intermediate gear are concentric and coaxial and fixedly sleeve the rotating shaft.

The invention relates to the technical field of nitrogen operations and discloses a liquid nitrogen pump truck. According to the liquid nitrogen pump truck, a first engine is used for driving at least one hydraulic pump; a second engine is used for driving other hydraulic pumps; the hydraulic pumps are used for providing pressure oil for a first hydraulic cylinder and a second hydraulic cylinder; the piston rod extension ends of the first hydraulic cylinder and the second hydraulic cylinder are respectively and movably arranged in a first plunger type cylinder and a second plunger type cylinder by virtue of plungers; and rodless cavities of the first plunger type cylinder and the second plunger type cylinder are respectively connected to an outlet of a low-pressure manifold and an inlet of a liquid nitrogen high-pressure manifold by virtue of a suction valve and an exhaust valve. According to the liquid nitrogen pump truck disclosed by the invention, the overall cost can be effectively reduced when the requirement on output power is met, infinitely variable transmission is realized, and the coverage range of the liquid nitrogen displacement and pressure is widened, so that the overall structure is compact, and the maintenance convenience is improved.

The invention discloses a stepless speed change automatic feeding device for a centerless grinder, which comprises a servo motor, an eccentric rotating wheel, a connecting rod, a linear guide rail, a material returning head and a base, wherein the servo motor is arranged on the base; the eccentric rotating wheel is connected with an output shaft of the servo motor; and one end of the connecting rod is connected with an eccentric hole of the eccentric rotating wheel through a bolt for the eccentric hole, and the other end of the connecting rod is arranged on the linear guide rail and is connected with the material returning head. The eccentric rotating wheel and the output shaft of the servo motor are in fastening connection through a bolt and a key, and the eccentric distance of the eccentric hole of the eccentric rotating wheel is determined according to the required material returning stroke. The stepless speed change automatic feeding device for the centerless grinder has the advantages that the servo motor is used for driving the rotating wheel and the connecting rod to operate at constant speed without other auxiliary force, so the human efficiency problem, the demagnetization problem and the material breaking and blocking problem are solved, linear operation and feeding are reliable and balanced, and the device is stepless adjustable and does not need demagnetization.

The invention relates to the technical field of buildings, in particular to an energy-saving kitchen waste processor and an energy-saving green building. The energy-saving kitchen waste processor comprises a shell, a grinding assembly, a speed changing assembly and a transmission assembly. A feeding port is formed in the upper end of the shell, and the grinding assembly is located in the shell andis configured to receive kitchen waste from the feeding port and performs grinding. The speed changing assembly is located below the grinding assembly and comprises a driving wheel, a driven wheel and a steel belt, wherein the driving wheel and the driven wheel are arranged in a split mode, the steel belt is wound around the driving wheel and the driven wheel, and an adjusting device is arrangedbelow the driven wheel. The speed changing assembly can automatically adjust the output rotating speed and torque according to the magnitude of grinding resistance, and the jamming phenomenon caused by insufficient output torque when the grinding resistance is increased is prevented; and meanwhile, through combination of the transmission assembly and the speed changing assembly, a grinding cylinder and a grinding disc of the grinding assembly can rotate in opposite directions and can further change the speed at the same time, stability is improved, and grinding is more sufficient.

The invention relates to a stepless speed change carrier vehicle. The stepless speed change carrier vehicle comprises a baseplate, a hopper, a driving system and a panel, wherein the baseplate is horizontally arranged; a through hole is formed in the middle of the back end of the baseplate; the panel and the hopper are arranged at the upper end of the baseplate in the advancing direction of the carrier vehicle in sequence; the two sides of the front end of the hopper are respectively hinged to the two sides of the front end of the baseplate; the hopper can rotate by surrounding a hinge point for unloading; the panel is of a hollow structure; the two sides of the upper part of the panel are backwards extended to be provided with two operation rods; a handle is arranged at the tail end of each operation rod; an accelerator switch is arranged in middle of the upper end of the panel; the driving system comprises an engine, a drive axle, a transmission mechanism and a driving wheel; and the transmission mechanism comprises an engine belt wheel, a transmission belt and a drive axle belt wheel. The stepless speed change carrier vehicle has the following advantages: the control over the movement direction of the carrier vehicle is realized through arranging an advancement and retreat control system; and the adjustment of the operation speed of the carrier vehicle is realized through arranging the drive axle.