143results about How to "Achieve the purpose of turning" patented technology

The invention discloses an intelligent wheelchair which comprises a wheelchair body. The wheelchair body is provided with two rear driving wheels and two front follow-up wheels. The two rear driving wheels are respectively provided with a brushless DC motor. The brushless DC motors are connected with a double closed loop control system. The double closed loop control system is controlled by a DSP controller, and the DSP controller controls the rotating speeds of the motors so as to realize different rotating speeds of the two rear driving wheels and achieve differential steering. According to the intelligent wheelchair, the double closed loop control system controls the rotating speeds of the driving wheels to achieve high-precision and high-stability control over the speeds; moreover, in the turning process, the DSP controller controls the different rotating speeds of the rear driving wheels, so that turning is realized, and the structure of the wheelchair is simplified.

The invention discloses a bidirectional self-balance electric vehicle. The bidirectional self-balance electric vehicle has the advantages that each corresponding pedal can be mounted in the direction in which a rider needs to ride the bidirectional self-balance electric vehicle, or the pedals can be mounted in both directions, so that the rider can ride the self-balance electric vehicle in the double directions, the bidirectional self-balance electric vehicle not only can be used as a self-balance electric vehicle which moves straightly in the forward direction, but also can be used as a self-balance electric scooter which can transversely travel, the expenditure on a vehicle can be saved for the rider who wants to experience both vehicles and purchase the two types of vehicles, and the bidirectional self-balance electric vehicle has a great significance on saving social resources.

The invention discloses a transmission shaft hanger capable of rotating and conducting height adjustment conveniently. The transmission shaft hanger comprises a base. The middle portions of the four side faces of the base are connected with one ends of four steel tubes through bolts respectively, and the bottoms of the other ends of the four steel tubes are all provided with rolling wheels. The tops of the other ends of the four steel tubes are provided with telescopic supporting poles. A bearing arranged in the center of the base is connected with a connecting shaft arranged at the bottom of a rotary bottom plate, and the rotary bottom plate is connected with an air cylinder. According to the transmission shaft hanger capable of rotating and conducting height adjustment conveniently, the height of a base plate can be adjusted by adjusting air pressure adjusting poles due to the arrangement of the air cylinder and a piston rod, a transmission shaft can be placed and taken out conveniently by a worker; in addition, the base plate is supported through the telescopic supporting poles, and the base plate is more stable; the purpose for rotating the rotary bottom plate is achieved by arranging the connecting shaft and the bearing, and the rotary bottom plate drives the base plate to rotate, so that the direction can be adjusted conveniently when the transmission shaft is stored and taken out by the worker.

The invention discloses a mechanical mold with a convenient cooling demolding function. The mechanical mold comprises a mold shell. Two symmetrically-arranged supporting plates are fixedly mounted atthe bottom of the mold shell, and a mold body is arranged in the mold shell. A plurality of first grooves are formed in the inner wall of the bottom of the mold body, and pushing plates are arranged in the first grooves and adapt to the first grooves. Pushing rods are fixedly mounted at the bottoms of the pushing plates, the bottom ends of the multiple pushing rods extend to the position below themold shell and are fixedly provided with the same pressing plate, and the two sides of the pressing plate are slidably mounted on the two supporting plates correspondingly. A first lead screw and a second lead screw are rotationally mounted at the bottom of the mold shell and are mounted on the same pressing plate in a threaded mode. The first lead screw is fixedly sleeved with a first bevel gearand a first chain wheel. According to the mechanical mold, the pressing plate can be moved conveniently, the structure is simple, and using is convenient.

A non-contact large-clearance magnetically driving method comprises an active magnetic pole and a driven magnetic pole. The active magnetic pole is a U-shaped iron core with fixed position. Each pole of the U-shaped iron core is respectively provided with two coils with electric power conducting controlled by a sequential circuit. The coils are controlled to switching and switching-off according to the prescribed sequence to lead to that the state of magnetic field of two magnetic poles is switched circulatingly according to the prescribed sequence to generate a magnetic field coupling with the driven magnetic poles (permanent magnets) which are arranged at the upper part of the U-shaped iron core of the active magnetic pole to drive the driven magnet (permanent magnet) to rotate. The invention has the advantages of simple technique, reasonable structure, fixed position of the active magnetic pole, large effective clearance between the active magnetic pole and the driven magnetic pole, adjustable rotating speed and direction, being able to replace the mechanical transmission and good practicability. The method of the invention can be applied to industrial practice and is especially suitable for driving the intracardiac miniature blood pump. The method of the invention settles the insufficiency for providing energy driving power to the intracorporal blood pump driving system currently.

The invention discloses a western medicine powder three-dimensional mixing device. The device comprises a base, two symmetrically-arranged supporting columns are fixedly arranged at the top of the base, and first grooves are formed in the sides, close to each other, of the two supporting columns; rotating rods are rotationally installed in the first grooves, and the ends, close to each other, of the two rotating rods are fixedly provided with a same rotating box; a first chain wheel fixedly sleeves one of the two rotating rods, and a chain is meshed with the first chain wheel; the top of the base is fixedly provided with a first rotating motor, and the first rotating motor is located between the two supporting columns; an output shaft of the first rotating motor is fixedly provided with asecond chain wheel, and the first chain wheel is in transmission connection with the second chain wheel through a chain; a mixing box is arranged in the rotating box, and two limiting grooves are formed in the inner wall of the bottom of the rotating box. According to the device, the mixing box can be rotated and moved, western medicine powder can be fully mixed, and the device is simple in structure and convenient to use.

The invention discloses a sheet metal frame with functions of height adjustment and clamp rotation. The sheet metal frame with the functions of height adjustment and clamp rotation comprises a work support box, wherein a worktable is fixedly connected to the top of the outer wall of the work support box, and a height adjusting device is fixedly connected to one side of the top of the worktable; sheet metal working machines are fixedly connected to the top of the height adjusting device, and a rack leg is fixedly connected with the bottom of the side, away from the work support box, of the worktable; a rotating device is fixedly connected to the middle of the bottom of the worktable, and the top of the worktable is rotatably connected with clamps. The invention relates to the technical field of sheet metal processing. According to the sheet metal frame with the functions of height adjustment and clamp rotation, rotation of the sheet metal working machines and the clamps ensures that different sheet metal materials can be processed, the efficiency of production is improved, and the number of the sheet metal working machines is reduced; besides, the production cost is reduced, support of the worktable is stable, and tools are safe, the working tools have a place to be stored and managed properly.

The invention discloses a household air filter element placement structure. The household air filter element placement structure comprises a connecting pipe and connecting rods, wherein the connectingrods are mounted on four corners of the bottom of the connecting pipe, a bolt sequentially penetrates through a second channel steel and a nut, and a first channel steel is mounted on the outer wallof the nut and is connected with a base. According to the household air filter element placement structure, the connecting rods, the connecting pipe and a filter net are combined into a filter element, so that the filter net can be used for filtering and is not scattered; the filter element can be placed on the base and can be clamped on the base through a baffle; the baffle and the connecting pipe can be mutually clamped through a clamping block and cannot be easily separated, and the connecting pipe is fixed on the baffle; and the baffle is stabilized and unlikely to shake by virtue of the connecting rods, so that the filter element is fixed on the base, and the filter element can be taken down from the base by wrenching the baffle and can be conveniently cleaned.

The invention discloses a multi-motor drive control system of an electric vehicle and a working method thereof, and the multi-motor drive control system comprises a left acceleration and deceleration signal collector and a right acceleration and deceleration signal collector, which are fixed on a sliding block and can slide along a slideway fixed on a control box. A left acceleration and deceleration pulling wire and a right acceleration and deceleration pulling wire are in non-sliding positioning connection with an adjusting disc which is fixed on the control box and can rotate and swing according to the shaft center, and dead angle looseness clearance in the parking direction is reversed. The control box is fixed on a vehicle body. A left signal output line is connected with all motor controllers on the left side of the vehicle, and a right signal output line is connected with all the motor controllers on the right side of the vehicle. The acceleration and deceleration pulling wires of the vehicle are connected with the sliding block and pull the sliding block to move along the slideway, thereby accelerating the whole vehicle. One end of a return spring is fixed on the control box, the other end is connected on the sliding block, and the sliding block is pulled back for decelerating the whole vehicle. The adjusting disc is connected with a speed reduction gear via a spin column of a vehicle steering mechanism, thereby realizing the rotation and the swing according to the shaft center and providing the rotational speed differential between driving motors on two sides during the turning of the vehicle.

The invention discloses a seed disinfecting and washing device for loofah planting. The device comprises a disinfecting and washing tank, wherein a placement frame is arranged in the disinfecting andwashing tank; a placement frame cap is arranged at the top of the placement frame; a first mounting seat and a second mounting seat are fixedly arranged on two sides of the placement frame; one end ofa first rotating shaft is fixedly arranged on one side, far away from the placement frame, of the first mounting seat, and the other end of the first rotating shaft is arranged on the disinfecting and washing tank in a rotating manner; one end of a second rotating shaft is fixedly arranged on one side, far away from the placement frame, of the second mounting seat; a cavity is formed in the disinfecting and washing tank; the other end of the second rotating shaft extends into the cavity, and is fixedly provided with a first gear; a second gear is arranged in the cavity, and is meshed with thefirst gear; and the second gear is fixedly sleeved with a rotating rod. According to the seed disinfecting and washing device, the placement frame can be overturned, and is used for driving seeds tooverturn, so that seeds can sufficiently contact with a disinfectant. The device is simple in structure and convenient to operate.

The invention discloses a concrete mixing device, which comprises an outer frame, the bottom of the outer wall of the outer frame is fixedly connected with a universal wheel, and the middle part of one end of the inner wall of the outer frame is fixedly connected with a first support plate, and the first support plate The top is respectively provided with a chute and a pushing device, the top of the chute is slidably connected with a motor box, the inside of the motor box is fixedly connected with a first motor, the bottom of the outer frame is fixedly connected with a support column, and the support A support shaft is fixedly connected to the top of the column, a stirring box is fixedly connected to one end extending from the output shaft of the second motor, and a stirring head is fixedly connected to an end extending from the output shaft of the first motor to the stirring box. The invention relates to the technical field of construction machinery. The concrete mixing device solves the problems of insufficient mixing and insufficient power supply capacity of the existing concrete mixing device, improves the mixing efficiency and mixing quality of the concrete mixing device, and also satisfies the power supply demand for outdoor operations.

The invention discloses pretreatment equipment for industrial waste gas. The pretreatment equipment comprises a box body and a gas inlet, wherein the gas inlet is formed in the left side of the box body and penetrates through the box body; a gas outlet is formed in the right side of the box body and penetrates through the gas outlet; a pad plate is arranged at the bottom end of a pulley; a plurality of first springs are arranged at the bottom of the pad plate; the bottom end of each first spring is connected with the inner wall of an inserting groove; slide blocks are arranged at the left sideand the right side of each pad plate; the outer wall of each side bock is provided with a slideway; the slideway is connected with the inner wall of the inserting groove. The pretreatment equipment for industrial waste gas has the advantages that through the gas inlet, the goal that the industrial waste gas can be blown into the device is achieved; through a waste slag opening, the goal of collecting waste materials is achieved; through the gas outlet, the goal of collecting filtered waste gas is achieved; through a motor, the pulley cyclically beats a filter screen to and fro; dust on the filter screen is shook off; the filtering efficiency is improved; the requirements of people are met.

The invention discloses dismounting and tightening equipment for a valve connecting bolt. The dismounting and tightening equipment comprises a workbench, a stand column, a movable connecting arm, a solid wrench connecting device, a rotating device, and a pressing device. The stand column and the rotating device are installed on the workbench. The movable connecting arm is connected with the stand column and the solid wrench connecting device. The pressing device is installed on the rotating device; a valve is arranged on the rotating device; and the rotating device enables the valve to rotate in the axial direction of the rotating device. The movable connecting arm comprises a shell, a lead screw, a sliding block, a hinge lug, and a first hydraulic cylinder. Two ends of the lead screw are rotationally connected with the stand column; the sliding block is in threaded connection with the lead screw; one surface, far away from the lead screw, of the sliding block is fixedly connected with the hinge lug; a first hydraulic cylinder is installed in the shell; and a piston rod of the first hydraulic cylinder is connected with the solid wrench connecting device. According to the dismounting and tightening equipment for the valve connecting bolt, aiming at the conditions that the positions of connecting bolts of many valves are narrow and the space is limited, the bolts can be automatically tightened and disassembled, and the device can be suitable for valves of different specifications.

The invention discloses an ophthalmic treatment eye washing device convenient for cleaning and disinfecting. The eye washing device comprises a supporting base, a waste water collector is fixedly connected to the upper surface of the supporting base, a water outlet is formed in the outer surface of the waste water collector, a movable frame is connected to the outer surface of the waste water collector in a sliding mode, a drainage groove is fixedly connected to the upper surface of the movable frame, and a first water conveying pipe is fixedly connected to the interior of the drainage groove. According to the ophthalmic treatment eye washing device convenient for cleaning and disinfecting, a protective shell on the eye washing device can be rapidly detached, so that the water outlet and the whole protective shell can be rapidly disinfected and cleaned, the height of the water outlet can be changed, the eye washing device can adapt to people with different heights, pulleys can be contracted, and therefore, the device can be conveniently transported and can also be kept stable during use.

The invention discloses an automatic navigation unmanned type floor washing and drying machine, which comprises a chassis, a power wheel, a first motor, universal wheels, a battery, a circuit board, an automatic watering and cleaning device, an automatic wastewater and dust collecting device, an automatic wastewater discharging device, ultrasonic probes, a laser scanner and a control screen, wherein the first motor is arranged on a shaft core of the power wheel; the universal wheels are arranged on the part, behind the power wheels, of the chassis; the battery connected with the first motor isarranged on the chassis; the circuit board is arranged on the battery; the automatic watering and cleaning device is arranged at the front part of the chassis; the automatic wastewater and dust collecting device is arranged on the rear portion of the chassis, the automatic wastewater discharging device is arranged on the automatic wastewater and dust collecting device, the ultrasonic probes for sensing surrounding obstacles are arranged on the two sides of the front end of the automatic watering and cleaning device and the two sides of the rear end of the automatic wastewater and dust collecting device respectively, the laser scanner for sensing surrounding obstacles is arranged at the front end of the automatic watering and cleaning device, and the control screen is arranged on the automatic wastewater and dust collecting device. The automatic navigation unmanned type floor washing and drying machine has the effects of intelligent water adding, cleaning and wastewater discharging, self-charging, obstacle avoiding, wheel clamping avoiding and voice prompting.

The invention discloses a trolley and bed integrated nursing device. The trolley and bed integrated nursing device comprises a base, wherein a rotating support rod is arranged in the center of the upper surface of the base, the upper surface of the rotating support rod is rotationally connected with a rotating seat through a rotating support hole, an overturning lower hinge seat is arranged at the rear end of the upper surface of the rotating seat and hinged with an overturning seat through an overturning upper hinge seat, a first lower hinge seat is arranged at the front end of the upper surface of the rotating seat, a support rod is arranged in the center of the upper surface of the overturning seat, a second lower hinge seat is arranged at the front end of the upper surface of the overturning seat, a second electric push rod is hinged in the second lower hinge seat, and the upper surface of the support rod is fixedly connected with a buttock support seat. The trolley and bed integrated nursing device realizes support through single base, the convenience of the nursing device is improved greatly, the working strength of a nurse can be reduced greatly, and the usability of the device is improved.

The invention relates to the field of buildings, in particular to a speed amplification combined damping device and an eddy current damping wall. The speed amplification combined damping device comprises a rigid support, a rack, a first gear, levers, at least one stage of overdrive gear assembly and an eddy current damping assembly, wherein the rack is horizontally arranged, the first gear is meshed with the rack, one end of each lever is rotationally connected with the rigid support, the other end of each lever is rotationally connected with the rack, a connecting piece is hinged between every two adjacent levers, the connecting pieces are hinged to the levers through hinge shafts, the hinge shafts are located between first rotating shafts and second rotating shafts, the connecting piecescan drive the rack to be in meshing transmission with the first gear, the eddy current damping assembly is connected with the rigid support, and the overdrive gear assembly can drive the eddy currentdamping assembly to generate damping force. According to the speed amplification combined damping device, design and manufacturing of a large-tonnage damping wall can be achieved in a composite acceleration mode, the multiple speed amplification effect is achieved, and the energy consumption efficiency of the damping wall is improved.

The invention discloses a tailoring device for garment processing. The tailoring device comprises a workbench, bases are fixedly installed at the two sides of the workbench, and supporting pillars areslidably installed at the tops of the bases; placement grooves are formed in the tops of the supporting pillars, supporting rods are slidably installed in the placement grooves, and the tops of the two supporting rods are fixedly provided with the same cross beam; multiple locating grooves are formed in the sides, away from each other, of the two supporting rods, two symmetric fixing bases are fixedly installed at the bottom of the cross beam, and a same lead screw is rotatably installed between the fixing bases; a sliding block sleeves the lead screw through threads, a connecting rod is fixedly installed at the bottom of the sliding block, cutting equipment is fixedly installed at the bottom of the connecting rod, a limiting groove is formed in the bottom of the cross beam, and a limiting rod is fixedly installed at the top of the sliding block and slidably installed in the limiting groove. The tailoring device can make it convenient to transversely move the cutting equipment and issimple in structure and convenient to use.

The invention discloses drilling equipment for hydraulic valve part machining treatment, and relates to the technical field of hydraulic valve machining. The drilling equipment comprises a base, a rotary disc is arranged above the base, a fixing mechanism is arranged above the rotary disc, a turnover mechanism is arranged at the outer side of the fixing mechanism, and the turnover mechanism is used for driving the fixing mechanism to turn over. The drilling equipment for hydraulic valve part machining treatment is reasonable in structure and easy to operate, through the arranged fixing mechanism, fixing work of hydraulic valve parts can be directly achieved, convenience is provided for drilling work of the drilling equipment, the fixing mechanism can be suitable for fixing treatment of parts of different sizes, the practicability is high, and the drilling precision is effectively improved; and through the arrangement of the turnover mechanism, rotation of the fixing mechanism can be achieved, so that turnover of two to-be-machined parts is achieved, through an arranged rotating mechanism, rotation of the rotary disc can be achieved, rotation of the machined parts is achieved, the automation degree of the parts is improved, and the safety of the device in the using process is guaranteed.

The invention relates to the field of automatic machining devices, in particular to a workpiece carrying device. The workpiece carrying device comprises a fixing plate and is characterized in that theworkpiece carrying device comprises a worktable, a rotating seat is mounted on the worktable, two or more perpendicular sliding rods are mounted on the rotating seat, and a positioning table and a sliding seat are mounted on the sliding rods; the sliding seat is provided with sliding holes for allowing the sliding rods to penetrate, and the sliding seat is connected to the sliding rods through the sliding holes in a sleeving mode; positioning plates are arrange on the two sides of the sliding rods correspondingly, connecting rods are arranged on the two sides of the sliding seat, and slidinggrooves are formed in the ends, deviating from the sliding rods, of the positioning plates; one ends of the connecting rods are hinged to the sliding seat, and the other ends of the connecting rods extend into the sliding grooves to be hinged to sliding plates; and fixing plates are mounted at the ends, close to the sliding rods, of the positioning plates. The workpiece carrying device can carry and feed workpieces automatically at adjacent conveying belts, the production efficiency is high, the high efficiency and stability of production can be ensured for a long time, and the labor intensityof staff and the production cost of enterprises are lowered.