5results about How to "Avoid unstable operation" patented technology

The utility model discloses a direct-drive electro-magnetic annular synchronous motor, and belongs to the technical field of large-scale synchronous motors. The motor comprises a split stator which is formed by splicing and fixing a plurality of stator petals along the circumferential direction; the block magnetic poles form a motor rotor, a plurality of independently-formed magnetic pole units are arranged at intervals in the circumferential direction, and each magnetic pole unit is directly and fixedly installed on the outer wall of the load rotating cylinder; the supporting and sealing structure is arranged at the axial end part between the split stator and the block magnetic pole and is used for sealing a gap between the split stator and the block magnetic pole; and the collector ring and brush carrier system is arranged at one axial end of the motor, and the output end of the collector ring and brush carrier system is electrically connected with the excitation windings of the block magnetic poles. According to the utility model, the split stator and the block magnetic pole structure are adopted, so that the transportation and field installation of the ultra-large motor are facilitated; the rotor is directly mounted on the outer wall of the milling cylinder to realize direct drive, a gear transmission link is omitted, the transmission efficiency is high, and operation is stable; a multi-layer sealing structure adapts to a high-dust environment, and the reliability is high; the speed regulation performance is good and the maintenance is convenient.

The application discloses a gyrotron integrated test analysis method, and belongs to the field of high-power microwave device testing. The method designs a steady-state working condition debugging starting point according to a starting current curve; and combines experimental power measurement data to correct a simulated power characteristic surface. The method provided by the application combines theoretical simulation with experimental data, realizes rapid identification and optimization of gyrotron working characteristics, improves debugging efficiency and precision, and is suitable for engineering debugging and operation optimization of an electron cyclotron resonance heating system. The method has the advantages of process standardization, high safety and strong migration, and can improve debugging efficiency, enhance calibration precision and reliability.

This utility model discloses a temperature control device for a plastic waste recycling granulation apparatus, belonging to the field of temperature control equipment. It includes a granulator and a control cabinet for controlling the granulator. The installation mechanism involves inserting the bottom plate of the temperature controller into a slot. Rotating the knob drives a bidirectional screw to rotate via a first rotating rod. This causes two adjusting blocks to move relative to each other through screw holes along the bidirectional screw, forcing the connecting rod to tilt. The angle between the left and right symmetrical connecting rods gradually increases, pushing the movable plate outwards. The movable plate slides through a slider in a square opening until a limiting plate passes through the opening and is inserted into the limiting opening. This allows for quick and easy installation and fixation of the temperature controller. When disassembly and maintenance are required, simply rotate the knob in the opposite direction to move the limiting plate out of the limiting opening until it can no longer be rotated, thus facilitating the disassembly and use of the temperature controller.

The utility model relates to the technical field of circuit boards, and particularly discloses a PCB with a bending function, a rectangular limiting seat is arranged in a storage box, a mounting block is fixedly connected to the outer surface of a printed circuit board body, two pressing rods are slidably connected to the interior of the mounting block, and the pressing rods are fixedly connected to the outer surface of the printed circuit board body. The two cambered-surface clamping blocks are fixedly connected to the ends, close to each other, of the two pressing rods correspondingly, the rectangular limiting seat is loosened, the rectangular limiting seat extends out in a sliding mode, meanwhile, the two pressing rods are loosened, the first spring recovers deformation, and the two cambered-surface clamping blocks are pushed to be attached to the inner surface of the rectangular limiting seat in a sliding mode; the curved surface clamping block is clamped in the clamping groove formed in the rectangular limiting seat, so that the bent printed circuit board body is fixed, the printed circuit board body is kept in a required bent state, and the printed circuit board body can be accurately fixed in a required specific bent state through clamping matching of the curved surface clamping block and the clamping groove in the rectangular limiting seat.

This utility model discloses a grinding device for enhanced recovery of fine-grained associated gold and silver from lead-zinc ore. The device includes a grinding cylinder and a grinding base. The grinding base is fixedly installed inside the grinding cylinder, and a grinding head is installed on the inner side of the grinding base. Beneficial effects: This utility model is equipped with a ring pipe and nozzles. During the grinding process, the lead-zinc ore, after being crushed, is fed into the grinding cylinder. The drive motor rotates the grinding head, creating relative rotation between it and the grinding base. The lead-zinc ore entering between the grinding head and the grinding base is gradually ground into fine-grained particles. During the grinding process, acid is pumped into the ring pipe through an acid pump pipe and sprayed onto the surface of the lead-zinc ore through the nozzles. The lead-zinc ore reacts with the acid to generate a salt solution. Gold and silver that do not react with the acid remain as particles and fall onto the top surface of the screen plate, thus completing the separation and recovery. Compared to the traditional method of grinding first and then separating, this device performs separation simultaneously during the grinding process, resulting in higher efficiency and more convenient recovery.