155results about How to "Realize synchronized movement" patented technology

The invention belongs to the field of hydraulic transmission control, and provides a synchronous control method based on a continuous-casting tundish lifting hydraulic cylinder synchronous control system. According to the method, the position deviation, beyond a set range, between a driving hydraulic cylinder and a driven hydraulic cylinder is corrected through a driving and driven hydraulic cylinder synchronous position deviation speed correction unit; if the position deviation between the driving hydraulic cylinder and the driven hydraulic cylinder is beyond the set maximum allowable position deviation, the driving hydraulic cylinder at the higher speed or the driven hydraulic cylinder at the higher speed is controlled to stop moving through a driving and driven hydraulic cylinder synchronous position deviation overrun control unit and a driven hydraulic cylinder synchronous position deviation overrun control unit till the position deviation between the driving hydraulic cylinder and the driven hydraulic cylinder is smaller than the set maximum allowable position deviation again; and a driving and driven hydraulic cylinder automatic position holding and control unit is used for preventing position deviation of the driving hydraulic cylinder and the driven hydraulic cylinder in absence of manual instructions. In this way, by adoption of the synchronous control method, under the conditions that leakage of the hydraulic cylinders occurs, the manufacturing accuracy degrees of hydraulic elements are different and loads are nonuniform, synchronous movement of the driving hydraulic cylinder and the driven hydraulic cylinder can be achieved.

The invention relates to the field of medical instruments, in particular to an X-ray protection device with an integrated structure for an angiography machine. The device comprises a protection screen unit, a protection curtain unit and a bedside sliding rail unit, wherein the protection screen unit is arranged on the protection curtain unit, and the protection curtain unit is fixed on the bedside sliding rail unit so as to enable the protection curtain unit and the protection screen unit to synchronously and horizontally move along a bedside. The protection device can synchronously move along with a bed, and in a moving process, the protection device is always in the best protecting state and close to a patient, so that the problem that the radiation, especially the secondary stray radiation caused by the rays reflected by the patient, can not be effectively shielded due to the movement of the bed surface of a conduit bed is effectively solved, and meanwhile, the problems of prolonged surgery time, increased surgery risk and the like that are caused by adjusting the protection screen unit during surgery in the prior art are effectively avoided.

The invention discloses a ligation device of hemorrhoids. The device is provided with a power mechanism and a rubber gasket trigger mechanism. The power mechanism controls the rubber gasket trigger mechanism which includes an inner pipe and a sleeve, wherein the inner pipe is used for loading rubber gaskets, the sleeve sleeves the inner pipe, and the sleeve moves relative to the inner pipe or the rubber gaskets translate on the inner pipe when the inner pipe moves relative to the sleeve. The rubber gaskets of the ligation device provided by the invention are installed in real time in a surgery scene, i.e. the rubber gaskets are not installed in the normal state, therefore the problems that the rubber gaskets are easily aged and fatigued can be prevented; when the ligation device is in use, the rubber gaskets can be ligated on a progressive feeding mechanism in rows, and the movement ways of the rubber gaskets are synchronous and homodromous movement after the progressive feeding mechanism obtains power, therefore the continuous launching of the rubber gaskets and the uninterrupted ligation can be ensured, and the pain of patients can be alleviated.

The invention discloses a synchronous control system for master and salve hydraulic cylinders with fixed potential difference. The synchronous control system for the master and salve hydraulic cylinders with fixed potential difference comprises a device body, a master hydraulic cylinder, n slave hydraulic cylinders, n+1 proportion adjusting valves and n+1 hydraulically controlled check valves, wherein the synchronous control system for the master and salve hydraulic cylinders further comprises three control programs, respectively are a synchronous control program for the master hydraulic cylinder with fixed potential difference, a synchronous control program for the slave hydraulic cylinders with fixed potential difference and a maximum potential difference protection control program for the master and slave hydraulic cylinders with fixed potential difference; According to the hydraulic cylinder synchronous control scheme provided by the invention, the high-accuracy synchronous movement of the plurality of hydraulic cylinders is achieved in the case of keeping certain distances among the hydraulic cylinders, and extremely strong robustness is provided. Therefore, the service life of the hydraulic cylinder is greatly prolonged, and the fault of stopping production to replace the leaked hydraulic cylinder is avoided.

The invention discloses a fishing robot and an automatic fishing system for aquatic products. The fishing robot includes a base on which a suction head and a steering gear manipulator are arranged. The suction head is connected with a connecting pipe. The end is fixedly arranged on the base, and the moving end of the steering gear manipulator is fixedly connected to the connecting pipe; the two sides of the bottom of the base are provided with a running mechanism, and the running mechanism is connected with a driving device through transmission. The automatic fishing system for aquatic products of the present invention includes a mother ship and a fishing robot with this structure, which can realize automatic fishing of aquatic products, effectively replace labor, and have high fishing efficiency.

The invention discloses a personnel evacuation simulation method based on a cellular automaton. The method comprises the steps of discretizing a whole room into a plurality of finite cells with the same size, and building a two-dimensional cellular automaton mathematical model similar to an actual scene; after starting to move a time step, traversing different starting points and different sequences for multiple times in the same time step, wherein each person needs to be judged twice before moving, firstly, enabling each person to move for at most one time in one time step and the moved person not to move in the previous traversal in the time step, and secondly, judging a random stop mechanism before moving so as to simulate the occurrence of an accident in the evacuation process; for the people who can move by the vacant cells in the four neighborhoods, determining the moving direction of the people according to the distance field value and the crowding degree in front; and outputting the evacuation time after all people are evacuated. According to the invention, the evacuation process of the people in the specific scene can be simulated more truly.

The invention relates to a track trailer for supporting a mandril workpiece during electroplating, comprising a support frame, track wheels and an erection loop of the mandril. The track trailer is characterized in that a vertical screw is vertically erected on the worktable of the support frame; the erection loop of the mandril is erected at the top end of the vertical screw; an adjusting plate and a locking plate are erected on screws on the upper and lower end faces of the worktable of the support frame through thread engagement; a half bearing engaged with a track screw is erected in the support frame; the half bearing carries out guide sliding in a vertical slide made in the support frame up and down and is fixedly erected with a brake rod by a connecting plate; and the inner end of the brake rod is hinged on a transverse plate fixedly erected with the support frame by an hinged shaft. The track trailer has simple structure and scientific design and can realize height adjustment according to the diameter of the mandril and stably support the mandril at the same time.

The invention provides an intelligent setting method for unmanned aerial vehicle attitude control parameters based on a quantum firefly algorithm, and belongs to the field of automatic control. The method comprises the steps of building an unmanned aerial vehicle attitude motion model, designing a fractional order PID controller, determining a to-be-set parameter, and selecting an error index function as an objective function; setting parameters of the quantum firefly algorithm; executing the quantum firefly algorithm to perform controller parameter setting optimization, and obtaining the optimal controller parameter and the objective function value of the current setting; judging whether the objective function value meets requirements or not; if the objective function value meets the requirement, determining that the firefly position is the optimal attitude controller parameter, and ending the setting; otherwise, returning to the step 2, resetting the parameters of the quantum fireflyalgorithm, and executing the steps 2-4. According to the method, on the basis of a standard firefly algorithm, improvement is carried out by utilizing a quantum theory, elite retention and mutation behaviors, and the defects that the later convergence speed of the standard firefly algorithm is seriously reduced, the convergence precision is not high, and local optimum is likely to happen in the prior art are overcome.

The invention discloses feeding and blanking device and method for automatically conveying electric energy meters based on a rail guided vehicle (RGV). The device comprises a transfer box, a horizontally arranged walking device, a robot for grabbing the electric energy meters, and a carrier for supporting the transfer box, wherein the N electric energy meters are placed in the transfer box; the walking device comprises a ground track; a sliding seat is slidably connected above the ground track and is connected with a drive device; the robot is arranged above the sliding seat; and a linear module for driving the carrier to move up and down is arranged on the bottom part of the carrier, and is perpendicularly arranged on the sliding seat and located on one side of the robot. According to thefeeding and blanking device and the method for automatically conveying the electric energy meters based on the RGV provided by the invention, the robot can feed and blank at different positions, so that the defect of single feeding and blanking position of an original robot is overcome; by utilizing the carrier, the transfer box and the robot move synchronously, and meanwhile, the stacking of transfer boxes is realized; and the carrier is arranged in a secondary telescoping way, so that no space is occupied, the speed is fast, and the working efficiency is high.

An adjustable double-row maize harvesting machine header comprises a transmission unit, a left header unit and a right header unit. The transmission unit comprises a power input wheel, a drive wheel, a driven wheel, a left header unit power input wheel and a right header unit power input wheel, the power input wheel and the drive wheel are arranged on a first transmission shaft, the driven wheel is arranged in the middle of a second transmission shaft, and the left header unit power input wheel and the right header unit power input wheel are arranged at the two ends of the second transmission shaft respectively. The drive wheel is matched with the driven wheel. The second transmission shaft is a hexagonal transmission shaft. The left header unit and the right header unit respectively comprise three millet dividing covers, the low portions of every two adjacent millet dividing covers are provided with harvesting units, and the left header unit and the right header unit are respectively and movably connected to a machine frame. The position, relative to the right header unit, of the left header unit can be adjusted, the adjustable double-row maize harvesting machine can adapt to the inter-group large space in a high photosynthetic efficiency planting method, the high efficiency mechanical harvesting is achieved, harvesting cost is reduced, and the application and popularization of the high photosynthetic efficiency planting method are facilitated.

The invention discloses a tension detection mechanism for yarn strength. The mechanism comprises a base, a plurality of winding plates are fixedly mounted on the base, a sliding groove is formed in the base between adjacent winding plates, a pressing head is slidably clamped in the sliding groove, a pressure applying mechanism is mounted in the base, the pressure applying mechanism is connected with the pressing head, a tension sensor is fixedly mounted on the outer wall of one winding plate, clamping mechanisms are installed at the two ends of the tension sensor, a display screen is fixedly installed on the base, and a connecting line is installed between the display screen and the tension sensor. Yarn is wound on the multiple winding plates and sequentially penetrates through the multiple pressing heads, then the two ends of the yarn are fixedly clamped to the two ends of the tension sensor through the clamping mechanisms respectively, and the multiple pressing heads are driven by the pressure applying mechanism to synchronously move, so the multiple pressing heads evenly apply pressure to the yarn in a segmented mode till the yarn is broken; and the yarn tension strength can be detected through the tension sensor, the detection is convenient, the force application strength can be slowly applied, and the detection precision is high.

The invention relates to an intelligent cutting device for processing of MCM materials. The intelligent cutting device comprises a longitudinal cutting assembly, a horizontal cutting assembly and a transporting assembly, wherein the longitudinal cutting assembly comprises a longitudinal cutting motor, a longitudinal cutting transmission shaft and longitudinal cutting saw blades; the longitudinal cutting motor is used for driving the longitudinal cutting saw blades to rotate and operate; a longitudinal transplanting bracket is arranged on a cutting machine frame; the horizontal cutting assemblyis arranged on the longitudinal transplanting bracket; a round power assembly is used for driving the longitudinal transplanting bracket to move; the horizontal cutting assembly comprises a horizontal transplanting bracket, a horizontal transplanting motor and horizontal cutting units, wherein a horizontal transplanting rack is arranged on the longitudinal transplanting bracket; a horizontal transplanting gear is arranged on the horizontal transplanting motor; the horizontal transplanting motor is used for driving the horizontal cutting units to horizontally move through the horizontal transplanting bracket; each horizontal cutting unit comprises a horizontal cutting motor and a horizontal cutting saw blade; and each horizontal cutting motor is used for driving the corresponding horizontal cutting saw blade to rotate and operate. The intelligent cutting device is reliable in performance, high in cutting efficiency and good in quality.

The invention discloses a rotatable and variable-speed electric snare handle. The rotatable and variable-speed electric snare handle comprises a handle main body, wherein the handle main body is sleeved by a ring sleeve in a sliding manner; a variable-speed gear and a transmission gear are respectively mounted on the ring sleeve and connected with the ring sleeve through locating pins; a first rack is arranged on the handle main body and in meshed connection with the variable-speed gear; the variable-speed gear is in meshed connection with the transmission gear; the transmission gear is in meshed connection with a second moveable rack; a turning wheel is mounted on the handle main body; a boosting rod is mounted in the turning wheel and connected with a copper sheet; the copper sheet is connected with a conductive column. The rotatable and variable-speed electric snare handle can reach the effect that an elastic metal wire can be rotated to enable a snare to snare a to-be-excised tissue, and the electric snare handle is convenient for a doctor to operate with a single hand.

The invention discloses a steel pipe clamp for pipe thread machining equipment. The steel pipe clamp comprises a bottom plate, wherein a guide table is arranged on the bottom plate, two clamping components are connected to the guide table in a sliding mode, and the two ends of the guide table are provided with telescopic devices used for driving the two clamping components to move correspondingly; the two clamping components are each connected with a rack, the two racks are parallel to each other, a gear is rotationally connected to the guide table, and the two racks are engaged with the two sides of the gear correspondingly; and a mounting hole is formed in the bottom plate. According to the steel pipe clamp, the two racks restrain the movement of the two clamping components, so that the two clamping components move synchronously, the moving distances of the two clamping components are ensured to be the same, and then the two clamping components can clamp a pipe at a designated position.

The invention provides a combined hydraulic cylinder with the adjustable power output angle. The combined hydraulic cylinder mainly comprises a hydraulic cylinder combined device, an adjustable oil conveying device and movable plates. The movable plates are installed on the hydraulic cylinder combined device. The adjustable oil conveying device is arranged in the middle of the hydraulic cylinder combined device. The combined hydraulic cylinder is characterized in that the angle of power output of the combined hydraulic cylinder can be adjusted. By means of double hydraulic cylinders, the adjustment on the two-dimensional output power angle is achieved. The oil supply switchover of the hydraulic cylinder combined device is achieved through the adjustable oil conveying device, the synchronous movement of the movable plates is achieved through an oil conveying port A1 and an oil conveying port B1, and inclination of the movable plates is achieved through an oil conveying port A2 and an oil conveying port B2.

The invention belongs to the technical field of machining, and discloses a fine copper pipe straightening device. The fine copper pipe straightening device comprises a straightening mechanism and a shaping mechanism; the straightening mechanism comprises a straightening table and an air storage bin, a straightening groove is formed in the straightening table, a through hole is formed in the straightening table, a piston is in sliding connection into the air storage bin, a push rod is connected to the piston, an air inlet and an air outlet are formed in the air storage bin, the shaping mechanism comprises a supporting table and two sets of conveying belts, each conveying belt comprises a driving wheel, a driven wheel and a belt, a first rotaion shaft is arranged on each driving wheel, a second rotation shaft is arranged on each driven wheel, a rotation motor is arranged at the bottom of the supporting table, a moving mechanism is further included and comprises a first connection rod, asecond connection rod and a third connection rod, and the problems that in the prior art, a straightening roller is used for fixing the two ends of a fine copper pipe, when the straightening roller rotates, the fine copper pipe can be separated from the straightening roller, and the straightening effect is poor are solved.

The invention provides an automatic feeding control method used for a numerical control lathe tailstock and capable of controlling the drilling depth. A connecting device for automatic connection and separation of a saddle and the tailstock of a numerical control lathe is adopted. The connecting device comprises a centering assembly, a rotating arm assembly, a driving assembly and a drill bit assembly. The drill bit assembly is mounted in a barrel sleeve of the numerical control lathe tailstock. The centering assembly comprises a centering shaft and a V-shaped block. The rotating arm assembly comprises a rotating arm, a rotating shaft, a shaft sleeve and two limiting press blocks. The driving assembly comprises a pair of belt drive parts, a drive motor, a reset switch and a controller, wherein the controller is mounted in a distribution box of the lathe, the reset switch is mounted in front of the saddle of the numerical control lathe, and the drive motor is fixedly connected with the numerical control lathe tailstock and electrically connected with the controller.

Disclosed is a protective device of a displacement sensor. The protective device comprises a fixed assembly, a sliding assembly and the displacement sensor; the fixed assembly is provided with a closed cavity for placing the displacement sensor; the opening in the bottom of the closed cavity of the fixed assembly is blocked by the sliding assembly, and the displacement sensor in the fixed assembly is connected with the sliding assembly, so that the sliding assembly drives the displacement sensor to slide up and down in the closed cavity of the fixed assembly, and displacement measurement is achieved. The protective device of the displacement sensor is fixed between a cylinder barrel of a leveling oil cylinder and a piston rod of the leveling oil cylinder by the fixed assembly and the sliding assembly, and the displacement sensor is arranged inside the fixed assembly and the sliding assembly, so that the displacement sensor is installed in a closed mode and prevented from being influenced by external environment, and meanwhile the synchronous movement and measurement of the displacement sensor and the piston rod of the leveling oil cylinder are achieved.