9results about How to "Speed synchronization" patented technology

This disclosure provides a control method and control device for a lifting system, belonging to the field of offshore platform lifting technology. The control method includes: determining the actual speed and load of the main motor and each slave motor on each leg, wherein the main motor is any one of a plurality of variable frequency motors in the leg, and the slave motors are all the variable frequency motors except the main motor; for any leg, adjusting the actual speed of each slave motor according to the actual speed of the main motor and the actual speed of each slave motor, as well as the load of the main motor and the load of each slave motor, so that the actual speed of the slave motor is synchronized with the actual speed of the main motor, and the load of the slave motor is synchronized with the load of the main motor.

This application discloses a grinding wheel shaft assembly mechanism for a grinding machine. The grinding wheel shaft assembly mechanism includes: a grinding wheel shaft, a grinding wheel, a drive unit, and a fixing unit. The drive unit drives the grinding wheel shaft to rotate. The grinding wheel shaft is provided with a front top sleeve and a rear top sleeve, which are respectively sleeved on the grinding wheel shaft. The ends of the grinding wheel abut against the front top sleeve and the rear top sleeve, respectively. The fixing unit includes a first bearing seat, a grinding wheel shaft guide sleeve, a first nut, and a second nut. The first bearing seat is provided with a mounting hole, and the grinding wheel shaft passes through the mounting hole. The grinding wheel shaft guide sleeve is sleeved on the grinding wheel shaft. The second nut is sleeved on the grinding wheel shaft guide sleeve and is sandwiched between the first nut and the second nut. The second nut is connected to the grinding wheel shaft guide sleeve, and the grinding wheel shaft guide sleeve is connected to the grinding wheel shaft. The first nut and the second nut are respectively located on both sides of the first bearing seat. The first nut and the second nut are suitable for fixing the grinding wheel shaft guide sleeve on the first bearing seat. The grinding wheel can be easily and quickly assembled and disassembled through the fixing unit.

The invention provides a lithium battery electrolyte production device which comprises a mixing tank, an electric heating device is arranged in the side wall of the mixing tank, a top cover is detachably arranged at the top of the mixing tank, a stirring shaft capable of vertically ascending and descending is arranged on the top cover, and a plurality of stirring shafts distributed around the stirring shaft are further arranged on the top cover. A stirring blade assembly is arranged on the stirring shaft, a turbulent flow disc arranged on the outer side of the stirring blade assembly in a sleeving mode is arranged on the stirring shaft, and a through hole matched with the stirring blade assembly is formed in the turbulent flow disc. According to the production device of the lithium ion battery electrolyte, the basic requirement for stirring and mixing treatment of the lithium ion battery electrolyte can be met, full mixing treatment of various raw materials can be achieved in the mode that horizontal stirring and vertical turbulent flow stirring are combined, and then the use requirements of people are met more fully.

The utility model discloses a steel pipe welding part polishing device, and relates to the technical field of steel pipe polishing equipment. The polishing device comprises a polishing box, a controller and a box door, the controller is installed on the right side wall of the polishing box, the front side wall of the polishing box is connected with the box door through a rotating shaft, the front side wall of the box door is fixedly connected with a handle, observation glass is embedded in the side wall of the box door, a fixing assembly is installed on the right side wall of the polishing box, and a rotating assembly is installed on the inner side wall of the polishing box. A grinding assembly is installed on the inner side wall of the grinding box. A connector is installed at the extending end of an electric telescopic rod of the grinding assembly, a sliding block is installed on the left side wall of the connector, an electric telescopic rod is installed on the upper side wall of the sliding block, and the extending end of the electric telescopic rod is connected with a grinding block through the connector. The height and the position of the polishing block can be adjusted through the polishing assembly, steel pipe welding positions of different positions and sizes can be conveniently polished, and steel pipes of different sizes can be conveniently and completely clamped through the fixing assembly.

The utility model relates to a device for removing an insulating layer of a high-temperature-resistant coating wire. The device comprises an operation table; the rotating part is mounted at one end of the operating table; the tensioning piece is mounted at the other end of the operation table; the tensioning part straightens the wire located between the rotating part and the tensioning part, and the insulating layer on the surface of the head of the wire is gasified and removed after the tensioning part is driven by the rotating part to rotate. Compared with the prior art, the efficiency of removing the insulating layer at the head of the lead is improved, and the inner core of the lead cannot be damaged while the insulating layer is removed.

The invention discloses a heat dissipation impeller structure for a driving motor of a deep-sea robot, which comprises an impeller, the impeller is arranged on a rotating shaft of the driving motor of the deep-sea robot, a rotor unit comprises a plurality of rotor modules, the plurality of rotor modules are arranged on the rotating shaft at intervals along the axial direction, and the impeller is arranged between at least one group of adjacent two rotor modules; the impeller adopts an orthogonal design method to optimize the blade number and the wing shape. A single rotor module and a single impeller are axially connected in series, and the coaxial design can keep the rotating speeds of the impeller and the rotor module synchronous, so that the heat dissipation power of the impeller and the power of a driving motor of the deep-sea robot form a positive correlation relationship; due to the fact that the multiple impellers are adopted and are independent of one another, on one hand, the flowing speed of cooling oil can be increased, and the heat dissipation efficiency is improved; on the other hand, the maintainability of the impeller is improved, and only the corresponding impeller needs to be replaced during maintenance; an orthogonal design method is adopted to optimize the number of impeller blades and optimize the impeller wing shape at the same time, so that the impeller efficiency is maximized.

The utility model relates to the technical field of plate straightening, and provides a plate straightening mechanism of cable clamping plate shearing machine, which comprises a machine body, the bottom of the machine body is fixedly connected with a supporting foot pad, the side of the machine body is fixedly connected with a feeding plate, the side of the machine body is fixedly connected with a discharging box, the inner side of the machine body is fixedly connected with a vertical plate, the side of the vertical plate is rotatably connected with an upper roller, the side of the vertical plate is rotatably connected with a lower roller, and the inside of the machine body is provided with a correction mechanism. The utility model further comprises a correction mechanism and a fixed-length cutting mechanism, the mutual cooperation of internal components of the correction mechanism guarantees straightening precision, avoids plate deviation or damage, power transmission is stable, and plate straightening quality and efficiency are improved, laying a good foundation for subsequent processing. Through the above technical scheme, the technical problem that the correction effect is poor and cutting cannot reach a certain precision in the related art is solved.

The utility model discloses centralized control equipment for a composite rotor permanent magnet synchronous motor. The centralized control equipment comprises a permanent magnet synchronous motor and a driver, the number of the permanent magnet synchronous motors is multiple, the permanent magnet synchronous motors are connected in parallel, each permanent magnet synchronous motor comprises a rotating shaft, a rotor core and a cage-shaped winding, the rotating shaft is arranged in the center of the rotor core, the cage-shaped winding sleeves the outer side of the rotor core, and the rotor core is internally provided with magnetic steel grooves distributed annularly and magnetic isolation grooves communicated with the magnetic steel grooves. Magnetic steel is installed in the magnetic steel groove, and a magnetic isolation body is installed in the magnetic isolation groove. The driver is electrically connected with the permanent magnet synchronous motors, and a V / F frequency converter is arranged in the driver, so that one driver can drive a plurality of permanent magnet synchronous motors to operate.

The present application relates to the technical field of gypsum board forming, in particular to a kind of automatic forming equipment of gypsum board and method thereof, the present application includes base, forming conveyor belt, upper cover paper and lower cover paper, the base top is symmetrically provided with driving pressure wheel and driven feed wheel, upper cover paper and lower cover paper all pass between driving pressure wheel and driven feed wheel;The main shaft of the forming conveyor belt is the only power source of whole equipment.The present application uses main shaft as the only power source, simultaneously drives forming conveyor belt, same speed feeding mechanism, self-adapting slurry laying opening adjusting mechanism and bubble-punching type defoaming mechanism action, without additional independent power source, not only simplify the equipment structure, reduce manufacturing cost and energy consumption, also ensure that the speed of each mechanism is completely synchronous with main shaft, avoid cover paper stretching, tearing, misplacement, slurry overflow, core lack and other forming defects from the root, improve equipment running stability.