33results about How to "Realize reverse drive" patented technology

A vibrator of a beam type linear ultrasonic motor using bending vibration modes belongs to the technical field of piezoelectric ultrasonic motors and is used for the piezoelectric ultrasonic motors. The vibrator solves the problem that the mechanical output capabilities of the ultrasonic motors are restricted because of low tensile strength and low electromechanical coupling efficiency of ceramic materials in the prior art. The vibrator comprises two driving pads, two end covers, two insulating sleeves, two pairs of piezoelectric ceramics with polarization directions being thickness directions, a flange, two thin-walled beams and mounting bases; wherein, studs extend out from the end faces of the flange along the axis of the flange; each stud is sleeved with a pair of piezoelectric ceramics; an end cover is screwed at the overhanging end of each stud; the tail end of each end cover is provided with a driving pad; each piezoelectric ceramic is composed of two symmetrical half piezoelectric ceramics which are combined after being split; the polarization directions of the two half piezoelectric ceramics are opposite; the splitting lines of the two pairs of piezoelectric ceramics at both sides of the flange are vertical to each other; the polarization directions of the piezoelectric ceramics in each pair are opposite.

The invention relates to a robot driving joint, in particular to a serial flexible driving joint having a steel wire transmission function. A reversing bevel pinion is in key connection with an output shaft of a planetary reducer, a reversing big bevel gear is meshed with the reversing bevel pinion and is in key connection with a small rope wheel, one end of a transmission steel wire rope winds around the small rope wheel, the other end of the transmission steel wire rope winds around a big rope wheel, then winds around the small rope wheel and is fixed on the small rope wheel, the big rope wheel is in key connection with a big rope wheel shaft, a rope pre-tightening device is located above a plane, the rope pre-tightening device and one end of a plane of the big rope wheel are arranged in an inverted U-shaped groove of an inverted U-shaped shifting fork, a joint driving assembly is arranged on one end surface of one side of a supporting bottom plate, an external supporting casing is buckled on the supporting bottom plate, an output rod is exposed out of the supporting bottom plate and the external supporting casing, two small rope wheel supporting bearings and two big rope wheel shaft supporting bearings are supported on the corresponding supporting bottom plate and the corresponding external supporting casing respectively. The flexible driving joint is applied to a joint part of a robot.

The invention relates to a reversible lock body comprising a lock body shell which is internally equipped with a containing cavity, and an inclined tongue and a square tongue which stretch out from one side of the lock body shell, wherein an unlocking shifting block capable of being driven by a key is arranged in the containing cavity; a rotary shifting block for driving the inclined tongue is arranged by means of being connected with the unlocking shifting block; a driving deflector rod is further arranged by means of being connected with the unlocking shifting block; a transmission bar which does a linear movement with the swinging of the driving deflector rod is arranged by means of being connected with the driving deflector rod; and one end of the transmission bar is connected with a first locking bar, and the other end of the transmission bar is connected with a second locking bar through a reversing gear assembly capable of changing the transmission direction of the transmissionbar. According to the reversible lock body, no extra reserving structure is added, and simultaneously, reverse driving of the first locking bar and the second locking bar is realized so that a door lock is locked in a vertical direction. Therefore, the cost is saved, and the reversible lock body is more convenient and fast to install and maintain and is a mechanical lock body with compact structure and good practicability.

The invention belongs to the field of street lamp cleaning and discloses a street lamp cleaning device. The street lamp cleaning device comprises a clamping structure, a cleaning mechanism and a workbox. One end of the clamping structure and one end of the cleaning mechanism are both connected to the work box. The other end of the clamping structure clamps a street lamp pole. The other end of thecleaning mechanism is in contact with the surface of the street lamp, and used for cleaning the street lamp. The work box is used for driving the clamping structure to move on the street lamp pole. The street lamp cleaning device is small in size and compact in structure, the cleaning mechanism can be stably clamped on the lamp pole under the action of the clamping structure, and by means of drive of the work box, the cleaning mechanism can achieve free climbing on the lamp pole; and in the work process, the ground occupied area is small, and the influence on vehicle passage is avoided.

The invention provides a partition excitation type composite bending vibration linear ultrasonic motor oscillator, belonging to the piezoelectric ultrasonic motor technology field. Problems that drive foot vibration characteristics of a present bending vibration modal girder type linear ultrasonic motor oscillator are inconsistent, and cutting combination arrangement of bending vibration piezoelectric ceramic sheets is not reasonable are solved. A center of a large end plane of an end cap is provided with a blind hole with internal screw thread. A flange is provided with two studs, each stud is in joint connection with two pairs of bending vibration piezoelectric ceramic sheets, and an end part of a stud is matched with the blind hole through screwing. An electrode slice is provided between adjacent bending vibration piezoelectric ceramic sheets and between a bending vibration piezoelectric ceramic sheet and a contact surface of the flange. The studs are provided with insulation sleeves. Two side surfaces of the flange are provided with two thin walled beams. Outboard of each of the thin walled beams is provided with an installation seat. A small end plane of the end cap is provided with a drive foot. Each bending vibration piezoelectric ceramic sheet is split into two no-bore rectangular piezoelectric ceramic sheets with a same size at two ends and a center hole rectangular piezoelectric ceramic sheet in the middle. The invention is applied to an ultrasonic motor oscillator.

The invention provides a patch type longitudinal vibration composite single-foot piezoelectric ultrasonic motor oscillator, and relates to the technical field of ultrasonic motors. The patch type longitudinal vibration composite single-foot piezoelectric ultrasonic motor oscillator aims to resolve the problems that an existing T-shaped linear ultrasonic motor oscillator is complex to machine and assemble and achieves microminiaturization difficultly. The tail end of each horizontal beam is provided with a horizontal amplitude-change pole, the tail end of a vertical beam is provided with a vertical amplitude-change pole, the horizontal amplitude-change poles and the vertical amplitude-change pole are blocks, the size of the section of each block is gradually reduced, a driving foot is fixedly connected with the small ends of the two horizontal amplitude-change poles and the small end of the vertical amplitude-change pole, the two horizontal beams and the vertical beam are arranged in a T shape, the side surfaces of the two horizontal beams are respectively provided with a thin wall beam, and the outer side of each thin wall beam is provided with a flange. The upper surface of each horizontal beam, the lower surface of each horizontal beam, the upper surface of the vertical beam and the lower surface of the vertical beam are respectively provided with a piezoelectric ceramic piece, all the piezoelectric ceramic pieces are polarized in the direction of thickness, the piezoelectric ceramic piece on the upper surface of the vertical beam and the piezoelectric ceramic piece on the lower surface of the vertical beam are opposite in polarizing direction, and the piezoelectric ceramic piece on the upper surface of each horizontal beam and the piezoelectric ceramic piece on the lower surface of the corresponding horizontal beam are opposite in polarizing direction. The patch type longitudinal vibration composite single-foot piezoelectric ultrasonic motor oscillator can be used for ultrasonic motors.

The invention discloses a meat product sauce-brushing device based on food processing and a using method thereof, and belongs to the field of food processing. According to the meat product sauce-brushing device based on food processing and the using method thereof, a sauce tank continuously guides sauce into a conveying pipe, so that the sauce is uniformly guided onto a taking roller through a plurality of leakage holes in the bottom end of the conveying pipe, the taking roller and a brushing roller are in transmission connection through a transmission mechanism, the sauce on the taking rolleris conveyed onto the brushing roller in transmission, the brushing roller uniformly smears the sauce on meat products on a conveying belt in the continuous rotating process, compared with traditionalmanual brushing or sauce brushing through a rotating common sauce brush, the sauce is smeared more continuously and more evenly, and meanwhile, the meat products are further pressed in the sauce brushing process; and a puncture device is arranged at the front end of the brushing roller to puncture the conveyed meat products to a certain extent, and thus the uniformity and permeability of subsequent sauce brushing are further effectively improved.

A wedge-shaped pre-tightened sandwich type rectangular four-pin linear ultrasonic motor vibrator, belonging to the technical field of piezoelectric ultrasonic motor, which solves the problem in the current rectangular four-pin linear ultrasonic motor vibrator that has complex structure and high requirement on the processing and assembling precision, wherein two horizontal combined beams and two longitudinal combined beams form a rectangular frame; the central positions of the inside face and the outside face of the column beam of each combined beam are respectively opened with a rectangular chute; the central position of each rectangular chute is provided with a pre-pressing block; a pair of longitudinal vibration piezoelectric ceramic chips is installed between two side faces of the pre-pressing block and the side wall of the rectangular chute; a wedge-shaped block is formed between each pair of longitudinal vibration piezoelectric ceramic chips and the pre-pressing block; the contact surface between the wedge-shaped block and the bottom part of the rectangular chute is a big end face of the wedge-shaped block; two pre-pressing blocks on the same combined beam are cooperatively connected with a pre-tightening nut via a pre-tightening screw, and then the longitudinal vibration piezoelectric ceramic chips are pre-tightened. The invention is suitable for manufacturing the ultrasonic motor vibrator.

A paster bent vibration composite single-foot piezoelectric supersonic motor vibrator belongs to the technical field of piezoelectric supersonic motors and aims to solve the problem that the integration is unfavorably realized due to a complex system as the existing supersonic motor vibrator adopts a dual-driving feet structure and is assisted with two sets of rotors and a guide rail system for realizing driving. The paster bent vibration composite single-foot piezoelectric supersonic motor vibrator comprises two variable amplitude rods, two middle beams, two rear end covers, a driving foot, two flanges and eight piezoelectric ceramic pieces; each variable amplitude rod is a block body gradually thinned from the head end to the tail end; each middle beam is a cuboid with a square section; head ends of the two variable amplitude rods are connected with the head ends of the two middle beams; the tail ends of the two variable amplitude rods are connected by the driving foot; a rear end cover is arranged at the tail end surface of each middle beam; a flange is arranged outside each rear end cover; one piezoelectric ceramic piece is arranged on each side surface of each middle beam; the piezoelectric ceramic pieces are polarized along the thickness direction; the mutually parallel four piezoelectric ceramic pieces are same in the polarization direction. The paster bent vibration composite single-foot piezoelectric supersonic motor vibrator is suitable for the piezoelectric supersonic motor needing integration.

The invention discloses a series connection non-crankshaft engine transmission mechanism which comprises a power shaft and an auxiliary shaft. At least two air cylinder piston rods are arranged between the power shaft and the auxiliary shaft. Air cylinder pistons are arranged at the end heads of the same ends of the air cylinder piston rods correspondingly. One side of each air cylinder piston rod is engaged with a main gear which is arranged on the power shaft in a sleeving manner through a one-way clutch. The combining directions of the one-way clutches are the same. The other side of each air cylinder piston rod is rotationally connected with the auxiliary shaft through a guiding mechanism. Every two adjacent two main gears are in transmission connection through a reverse transmission mechanism. When one air cylinder piston rod acts, the corresponding main gear rotates, and when the combining directions of the one-way clutches are the same, the main gears corresponding to the power shaft enable the power shaft to rotate to output power through the corresponding one-way clutches. Meanwhile, transmission and reversing of power needed by the stroke of the corresponding air cylinder piston rods are achieved by every adjacent two main gears through the corresponding reverse transmission mechanisms. The transmission mechanism belongs to a free piston type, and therefore a variable compression ratio function is achieved.

The invention provides an isolation mechanism. The isolation mechanism comprises a rotary shaft, grain, a rotary wheel, an installing seat, an action source and a rotary motor, wherein a cylindrical cavity is formed in the installing seat; the rotary shaft is vertically and coaxially fixed in the cavity and fixedly provided with the rotary wheel; the rotary motor is fixed at the bottom end of therotary shaft and drives the rotary shaft to rotate; the grain is fixed to the position, near the edge, inside the rotary wheel in a penetrating mode; and the action source is arranged at the position,corresponding to the lower portion of the grain, in the installing seat. The rotary motor provides driving force, reverse rotation driving of the rotary wheel is realized, the isolation mechanism ofa device can conveniently restore to the initial state after two-level safety is relieved, the driving force on the rotary wheel at the initial stage and the ending stage is uniform, the rotary wheelis effectively driven to rotate in place, and the reliability of relief of two-level safety is improved. An electromagnetic clamp device is used for conducting two-level safety restraining on the isolation mechanism, and the relief performance of two-level safety of the isolation mechanism can be detected without carrying out a destructive test.

The invention relates to a cable stripping device with an adjustable cutting angle. A cutter used by the device comprises a mounting part, a fixed connecting part and a cutter handle connecting part; the fixed connecting part is arranged on the mounting part, the cutter handle connecting part is in sliding fit with the fixed connecting part, and the sliding track of the cutter handle connecting part on the fixed connecting part is an arc-shaped track with the cutter point position of the stripping cutter connected with the cutter handle connecting part as the circle center. When the connecting position and direction of the cutter handle connecting part and the fixed connecting part are adjusted, the position of the stripping cutter can be adjusted, but the cutter point position of the stripping cutter is ensured to be unchanged, namely the angle between the stripping cutter and the cable is adjusted, and the stripping cutting starting position is not changed, so that the cable can be effectively stripped according to different stripping angle requirements.

The invention relates to an impurity removal device of a corncob lift conveyer of a corn harvester. An intermediate shaft is arranged at the outer back of the upper side of a second frid through a mounting rack, the intermediate shaft stretches into a shaft end at the inner side of the second frid to fix a lifting lever, and an intermediate chain wheel is arranged on the other shaft end of the second frid. A rotating shaft is assembled at the outer front of the upper side of the second frid through a tensioning support, a tensioning chain wheel is arranged at a shaft end of the rotating shaft, and the intermediate chain wheel, the tensioning chain wheel and a power take-off chain wheel at a shaft end of a driving shaft are meshed with a closed transmission chain. An impurity removal shaft is arranged on a first frid and the second frid, and poking plates with poking teeth are fixed on the impurity removal shaft, a power input chain wheel is arranged at a shaft end of the impurity removal shaft, and the power input chain wheel is meshed with the transmission chain in an outer mode. Straw and other impurities horizontally stacked at an inlet end of the corncob lift conveyer are poked to the lifting direction of the lift conveyer by the lifting lever of the intermediate shaft and then sent to a lifting part to convey the straw and other impurities out by the poking plates of the impurity removal shaft. The impurity removal device of the corncob lift conveyer of the corn harvester is reasonable in structure, simple to manufacture and reliable to use.

A cable stripping device comprises an upper clamping part, a lower clamping part, a driving part and a cutter supporting part. The upper clamping part and the lower clamping part are both arranged on the driving part and are opposite in position, and the driving part is used for driving at least one of the upper clamping part and the lower clamping part to move so as to adjust the relative distance between the upper clamping part and the lower clamping part to clamp a cable; a cutter for stripping the cable is arranged on the cutter supporting part, the cutter supporting part is used for driving the cutter to slide, and the sliding direction of the cutter coincides with the center line of the cable clamped by the upper clamping part and the lower clamping part. The driving part drives the upper clamping part and the lower clamping part to move relatively, so that the automatic clamping of the cable is realized. Moreover, the cable is clamped through the combination of the upper clamping part and the lower clamping part, and a gap between the upper clamping part and the lower clamping part is adjustable, so that the clamping of cables with different thicknesses is facilitated.