61results about How to "Easy drive control" patented technology

The invention pertains to the technical field of medical engineering and discloses a method for driving and controlling a universally rotating magnetic field of a medical micro-robot in a human body. The method is characterized in that three groups of Helmholtz coils on z, y and x axes are arranged by orthogonal nesting so as to ensure that respective combined inductance is equal and the amplitude of intensity of magnetization of a harmonic magnetic field generated respectively is equal when the three groups of coils are driven by the same harmonic current. The relevant amplitude of an axis azimuth angle of the robot and a same frequency sine harmonic driving current of a phase are overlapped to form a spatial universally and evenly revolving magnetic field corresponding to the revolving axis of the azimuth angle in a certain space surrounded by the orthogonal Helmholtz coils on the three axes. The self-rotating direction of the universally rotating magnetic field can be changed by changing the current frequency to adjust the revolution of the magnetic field and changing the orthogonal Helmholtz coils on the three axes to drive the current direction. The method of the invention has the beneficial effects that the method is applicable to a bending inner environment of the human body and can realize a plurality of functions of rotation, going forward and backward and speed adjusting, etc., of the robot in the human body, and the positioning operation in the human body.

The invention discloses a sequential lifting device for cleaning tools of a floor cleaning robot. The sequential lifting device comprises a single degree-of-freedom power assembly, a lever assembly, a disc brush assembly and a water absorbing rake assembly, wherein a power device in the single degree-of-freedom power assembly is fixed on a power device bracket and connected with a push-pull connecting rod cross beam, two ends of the push-pull connecting rod cross beam are provided with push-pull connecting rods, the lower position of the push-pull connecting rods is connected with the disc brush assembly, and the end of the push-pull connecting rod is provided with a chute; and a lever in the lever assembly is arranged on a pivot connecting rod, the short arm end of the lever is connected with a tension spring, the long arm of the lever passes through the chute of the push-pull connecting rod, and the end of the lever is connected with the water absorbing rake assembly. The sequential lifting device has simple structure, is convenient to control, realizes step-by-step motion of multiple cleaning tools, saves the cost, is convenient to drive and control, and can effectively reduce the abrasion of the cleaning tools and the floor, effectively protect the cleaning tools and the floor, furthest reduce the residual sewage of the floor, meanwhile save the energy required by the robot during moving and save energy consumption.

The invention discloses a crosswind hazard inhibition method of a train and a device thereof. The method comprises the following steps of: A. establishing a crosswind security database; B. measuring the running speed of a train by a speed monitoring device arranged on the train, and measuring the current wind speed and wind direction by a wind measurement device arranged on a railway line or an on-board wind measurement device; C. installing wing plates with regulable angles of attack at both sides of the top of the body of the train, wherein the actuators of the wing plates are connected with an on-board control computer; and D. the on-board control computer calls the crosswind security database to calculate and judge according to the measured running speed of the train and the measured wind speed and wind direction and outputs a corresponding command to control the actuators to actuate to regulate the angles of attack of the wing plates so as to inhibit the influence of the crosswind on the train. The method can change the balance characteristic of the train in the running process under the crosswind action, thereby ensuring the safety, the stability and the high-speed running of the train, and the cost is low.

The invention relates to the technical field of steel production and processing, in particular to a conveying, guiding and separating device for steel production and processing, the conveying, guiding and separating device comprises a main support frame, a driving motor, an adjusting motor and an electromagnet, and the upper end of the main support frame is provided with a top guiding and separating support through a lifting frame. According to the conveying, guiding and separating device for steel production and processing, an overturning adjusting frame internally provided with a conveying belt mechanism and a circular adjusting console controlled through an electric control telescopic supporting rod are arranged, the angle adjustment of the overturning adjusting frame is controlled through the adjusting motor, and therefore steel can be controlled to be switched and conveyed among a plurality of platforms. Operation can be controlled by utilizing the single driving motor, a transmission mechanism is compact, and the transmission efficiency is very high. The conveying, guiding and separating device can control the steel to be subjected to multi-angle guiding and separating adjustment at different heights, operation is easy, and the guiding and separating efficiency is very high. Automatic positioning and locking can be achieved through internal limiting control frames on the inner side faces of a bottom limiting supporting frame and a top limiting supporting frame, operation is easy and convenient, and positioning is accurate.

The invention discloses a polar shaft type Fresnel line focusing device. The polar shaft type Fresnel line focusing device comprises a fixed support assembly and a polar shaft rotating assembly, wherein the fixed support assembly comprises an inclined plane base parallel to an earth axis, the inclined plane base is used for connecting and supporting the polar shaft rotating assembly and a mirror surface assembly, the polar shaft rotating assembly comprises a polar shaft rotatably connected with the inclined plane base and a U-shaped support connected and fixed to the polar shaft, and the polarshaft is connected with a rotation driving mechanism used for driving the polar shaft to rotate to track the lighting direction; and the device further comprises sliding guide rails connected to theU-shaped support, sliding blocks in sliding fit with the sliding guide rails, and a Fresnel linear focusing lens, wherein the Fresnel linear focusing lens is connected with the sliding blocks. According to the device, the design of adjusting the angle of a mirror surface is simplified, the polar shaft is designed to be rotatable, rotation of the polar shaft is precisely and controllably controlledby the rotation driving mechanism, so that the angle of the U-shaped support connected with the polar shaft is directly driven to change, the lens on the U-shaped support continuously keeps facing the incident direction of sunlight, and the sunlight is always converged on heat collecting pipes.

The invention relates to a high-altitude intelligent operation lamp changing robot and belongs to the field of unmanned aerial vehicles. The high-altitude intelligent operation lamp changing robot comprises an unmanned aerial vehicle, an operating platform is arranged above the unmanned aerial vehicle, two lamp positioning devices are arranged on two sides of the operating platform, and two screwtwisting manipulators capable of moving around the operating platform are arranged on the periphery of the operating platform; and each screw twisting manipulator comprises a sliding block seat, a first hollow rod is vertically fixed on each sliding block seat, a second hollow rod and a first swinging motor are arranged at the upper end of each first hollow rod, each first swinging motor can drivethe corresponding second hollow rod to swing around the upper end of the corresponding first hollow rod, a second swinging motor and a third hollow rod are arranged at the other end of each second hollow rod, each second swinging motor can drive the corresponding third hollow rod to swing around the upper end of the corresponding second hollow rod, the other end of each third hollow rod is rotationally connected with a screw head, a screw head driving motor is arranged at the bottom of each sliding block seat, each screw head driving motor is connected with the corresponding screw head through a flexible steel bar, and each flexible steel bar penetrates through the corresponding first hollow rod, the corresponding second hollow rod and the corresponding third hollow rod.

The invention relates to the technical field of coal mine quality detection, in particular to a coal mine quality detection device based on machine learning, which comprises a crushing mechanism, two symmetrical locking mechanisms are mounted on the crushing mechanism, a screening mechanism is mounted in the crushing mechanism, and a pushing mechanism is mounted in the crushing mechanism. A detection mechanism is mounted in the crushing mechanism, and the exterior of the crushing mechanism is connected with a driving mechanism; and coal briquettes are conveniently crushed under the action of the crushing mechanism, the crushed coal briquettes are further filtered under the action of the screening mechanism, and powdery coal and the detection mechanism are repeatedly mixed under the action of the pushing mechanism, so that the water content detection work is conveniently carried out, and the quality of a coal mine is monitored.

The invention discloses a wear-resisting slab conveying type blowing, brushing and washing device which comprises a rack. The rack is provided with an unwinding wheel, a winding wheel, a pressing wheel and a supporting wheel. The pressing wheel is arranged on the supporting wheel. The inner top of the rack is provided with a suspended ceiling base which is provided with a drive motor. A drive shaft is arranged in front of the drive motor. The periphery face of the drive shaft is provided with a brushing roller in a sleeved manner. The periphery face of the brushing roller is provided with bristles. The inner bottom of the rack is provided with side plates. A carrier plate is arranged between the side plates. The carrier plate is provided with a stepping motor. A rotating shaft is arranged in front of the stepping motor. The periphery face of the rotating shaft is provided with a driving wheel in a sleeved manner. The driving wheel is meshed with the supporting wheel. According to the wear-resisting slab conveying type blowing, brushing and washing device, the brushing roller can carry out brushing and washing on the upper surface of a wear-resisting slab through the bristles, and the lower surface of the wear-resisting slab can be blown and washed through air blowing holes.

The invention discloses an optical communication switch, an optical control method, an array substrate and a display device. Specifically, the invention provides the optical communication switch, comprising a first substrate and a second substrate disposed opposite to each other, a first optical medium layer, a second optical medium layer, and a heating device. The first optical medium layer is disposed between the first substrate and the second substrate and is formed of a phase change material which has a first refractive index in the first state and a second refractive index in the second state. The second optical medium layer is disposed between the first substrate and the second substrate and is in contact with the first optical medium layer, and the refractive index of the second optical medium layer matches the first refractive index or the second refractive index. The heating device is configured to enable the phase change material to transition between the first state and thesecond state. Therefore, the optical communication switch has a simple manufacturing process and a fast response time.

The invention relates to a medical transfer bed which comprises a vehicle body and a movable bed board mechanism installed on the vehicle body, the movable bed board mechanism comprises an upper-layer bed board, a driving roller, a conveying cloth belt and an installation base, the upper-layer bed board is detachably connected to the installation base, and the driving roller is rotationally connected to the installation base; the conveying cloth belt is sleeved outside the driving roller and the upper-layer bed board and is tensioned by the driving roller and the upper-layer bed board; the two ends of the driving roller are detachably connected with a second driving mechanism through a clutch mechanism and are driven by the second driving mechanism to rotate, a limiting piece used for limiting the driving roller in the radial direction is arranged on the installation base, and when the limiting piece and the driving roller are staggered, the driving roller and the installation base can be arranged in a separated mode. The medical transfer bed is provided with the clutch mechanism, so that separation from thesecond driving mechanism is convenient, the driving roller and the upper-layer bed board which are convenient to disassemble are arranged, so that convenient disassembling, replacing and cleaning of the conveying cloth belt are realized.

The invention relates to the technical field of wood carrying, in particular to a wood carrying manipulator with a protection function, which comprises a manipulator body, an adsorption mechanism is mounted on the manipulator body, a control mechanism is connected to the adsorption mechanism, a protection mechanism is mounted on the adsorption mechanism, and a cleaning mechanism is connected to the adsorption mechanism. An adjusting mechanism is mounted on the adsorption mechanism, and a locking mechanism is mounted on the adjusting mechanism; through cooperation of the adsorption mechanism and the control mechanism, wood is conveniently adsorbed and carried, meanwhile, under the action of the protection mechanism, blockage protection on the adsorption mechanism is facilitated when no suction force exists, the adsorbed plates are prevented from falling off, and under the action of the cleaning mechanism, dust and sundries on the plates are blown off and cleaned away; and through cooperation of the adjusting mechanism and the locking mechanism, the adsorption mechanism can be conveniently adjusted, and wood of different sizes can be conveniently adsorbed and carried.

The invention provides a driving method of a full-bridge soft switch inverter circuit. The full-bridge soft switch inverter circuit comprises a leading leg Q1, a leading leg Q2, a lagging leg Q3 and a lagging leg Q4, wherein the leading leg Q1 and the lagging leg Q4 are powered on in pairs; the leading leg Q2 and the lagging leg Q3 are powered on in pairs. The driving method comprises the following steps: controlling the two lagging legs Q3 and Q4 so as to fix the power-on time and the power-on moment of the two lagging legs Q3 and Q4 within a signal period; and performing PWM control on the two leading legs Q1 and Q2 so as to enable the power-on moment of the two leading legs Q1 and Q2 to be in a dead zone time range of the two lagging legs Q3 and Q4. By adopting the driving method, the power consumption of a low-power switch device is effectively reduced, the inversion frequency is increased, and the driving control of the full-bridge soft switch inverter circuit is simpler and more convenient.

The invention discloses a large-thrust large-stroke piezoelectric inchworm actuator and a driving method thereof. The actuator comprises a fixed cylinder, two supporting rings, two fixed rings, a piezoelectric actuating unit, two motor actuating units, two anti-rotation units and a lead screw. Each piezoelectric actuating unit comprises a piezoelectric stack, two caps and two cylindrical tension springs; each motor actuating unit comprises a sleeve, a hollow motor, a flexible coupling and a clamping nut, and the anti-rotation unit comprises an end cover and a ball spline cylinder. During work,the two hollow motors are used for alternately rotating the two clamping nuts to the supporting surface for clamping, the lead screw is pushed to output in a small displacement mode in cooperation with stretching and retracting of the piezoelectric actuating unit, and bidirectional large-thrust large-stroke actuation is finally achieved in cycles. According to the invention, electromagnetism is not generated, electromagnetic interference is avoided, the complex coupling phenomenon existing when the piezoelectric actuator unit is matched with the piezoelectric actuator unit for work is eliminated, and drive control is facilitated.

The invention relates to the technical field of POS machines, in particular to a safe peep-proof POS machine which comprises a POS machine body, a shielding mechanism is mounted on the POS machine body, a limiting mechanism is mounted on the inner wall of the POS machine body, a reset mechanism is mounted in the POS machine body, a protection mechanism is mounted on the POS machine body, and a driving mechanism is mounted on the inner wall of the POS machine body. The POS machine body is connected with a clamping mechanism, and the POS machine body is provided with a storage mechanism; through cooperation of the shielding mechanism and the limiting mechanism, protection and peep prevention of a key area on the POS machine body are facilitated, meanwhile, under the action of the reset mechanism, the limiting mechanism is reset after the POS machine body is placed, and through cooperation of the protection mechanism and the driving mechanism, shielding protection control over a card swiping groove of the POS machine body is achieved, card swiping work and dust protection are facilitated, and the POS machine is convenient to use. The POS machine body is convenient to carry and hold under the action of the clamping mechanism, signature work is convenient to carry out under the action of the storage mechanism, and use is more convenient.

The invention relates to the technical field of book binding and shearing, in particular to an auxiliary feeding and discharging device for English book binding, processing and shearing. The auxiliary feeding and discharging device for English book binding, processing and shearing comprises a paper cutting machine, wherein a pushing mechanism and a rotating mechanism are installed on the paper cutting machine; an abutting mechanism is installed in the paper cutting machine; a limiting mechanism is installed on the paper cutting machine; and a protection mechanism is installed on the paper cutting machine. Under the action of the pushing mechanism, book paper needing to be cut can be pushed into the paper cutting machine so as to be cut, books can be conveniently pulled out and discharged subsequently, operation is convenient, the paper flatness is better, and the paper cannot be dispersed; through cooperation of the abutting mechanism and the rotating mechanism, the paper placed on the rotating mechanism can be conveniently rotated, so that four sides of the paper can be pushed and cut; and under the action of the protection mechanism, a feeding port of the paper cutting machine can be closed and protected, so that the situation that sundries enter the paper cutting machine, and the paper cutting machine is damaged during working is prevented.

The invention relates to the technical field of transformers, in particular to a photovoltaic wind power duplex winding split dry-type transformer which comprises a transformer body, a fixing mechanism is mounted on the transformer body, a limiting mechanism is mounted on the fixing mechanism, a moving mechanism is mounted on the transformer body, and an abutting mechanism is mounted on the transformer body. A protection mechanism is mounted on the transformer body; through the importance of cooperation of the fixing mechanism and the limiting mechanism, the mounting hole position of the transformer body can be conveniently adjusted, so that the transformer body can be conveniently and rapidly mounted, through the importance of the moving mechanism, the transformer body can be conveniently and well carried during moving, physical exhaustion of workers is relieved, and the working efficiency is improved. Limiting protection after the moving mechanism is driven is facilitated through the importance of the abutting mechanism, the transformer body is prevented from falling off due to loosening of the moving mechanism, shielding protection on the copper bar connecting position connected with the transformer body is facilitated through the importance of the protection mechanism, and safety accidents are reduced.

The invention discloses a gear mechanism for driving worm gears, which includes a rotating shaft and a driven shaft. The outer peripheral surface of the rotating shaft is covered with a first driving gear, a second driving gear and a first transmission gear. The first transmission gear is installed on the Between a driving gear and the second driving gear, the outer peripheral surface of the driven shaft is covered with a second transmission gear, a first driven gear and a second driven gear, and the second transmission gear is installed on the first driven gear and the second driven gear. Between the driven gears, the first driving gear meshes with the first driven gear, the second driving gear meshes with the second driven gear, and the first transmission gear meshes with the second transmission gear. The invention can control the worm gear to realize the rotation adjustment through the rotation of the transmission gear, so as to facilitate the drive control of the worm gear.

The invention discloses a multi-module series converter self-powered circuit with a self-voltage-sharing capability and a control method thereof. The self-powered circuit is connected in parallel witha voltage-sharing circuit at the low-voltage output side of a power-taking power supply, and the voltage-sharing circuit is formed by connecting a switching device and a low-voltage load resistor inseries. The control method comprises the steps of during the pre-charging period of a sub-module direct-current capacitor of the converter, the sub-module controller or the uniform controller automatically controls the power of a load resistor at the output side of the power-taking power supply according to the capacitor voltage to adjust the direct-current capacitor voltage of each sub-module, sothat the balance of the direct-current capacitor voltage of the sub-module during the pre-charging period is realized, and the successful pre-charging of the system is ensured. The voltage-sharing circuit is configured on the low-voltage output side of the power-taking power supply, and is simple in circuit, convenient to control, low in cost, free of participation of a master controller and wider in application range. After the sub-modules are pre-charged and enter an operation state, the voltage-sharing circuit stops working, so that the loss is reduced.