2results about How to "Guaranteed synchronous rotation" patented technology

This utility model discloses a multi-stage centrifugal pump guide vane assembly and a multi-stage centrifugal pump, including a centrifugal pump body. The centrifugal pump body is generally divided into a motor and an impeller mechanism. A drive shaft is fitted and connected to the end of the motor near the impeller mechanism, and a reinforcing sleeve is fitted and connected to the outer side of the drive shaft. An impeller shaft is fitted and connected to the end of the impeller mechanism near the motor. A threaded sleeve is fixedly installed on the outer surface of the impeller shaft, and a connection port is opened on the inner side of the threaded sleeve. A plug is fixedly connected to the end of the drive shaft near the impeller shaft. The reinforcing sleeve has a connecting thread inside. By setting the drive shaft, impeller shaft, and connection port, this device improves the power transmission efficiency and simplifies the docking and installation process between the motor and the impeller mechanism. Furthermore, by setting the reinforcing sleeve, limiting sleeve, and retaining ring, the connection stability between the drive shaft and the impeller shaft is enhanced by limiting the axial displacement of the retaining ring after docking.

This utility model relates to the field of crushing and pulverizing technology, and particularly to a multi-stage rotary crushing and pulverizing machine. It includes a support frame, a processing shell fixedly mounted on the upper end of the support frame, a discharge shell fixedly mounted on the lower end face of the processing shell, and two sets of crushing rollers symmetrically mounted within the processing shell. A first drive motor is fixedly mounted on one end of the processing shell, and a linkage assembly connecting the two sets of crushing rollers is provided at the other end of the processing shell. A pulverizing shell is detachably mounted on the lower end face of the discharge shell. This application, by setting a multi-stage pulverizing structure, including two sets of crushing rollers, two sets of main pulverizing rollers, and several auxiliary pulverizing rollers, enables multiple crushing and pulverizing processes on materials, greatly improving the pulverizing effect. The material is subjected to different forces at different pulverizing stages, such as compression, shearing, and rotary cutting, ensuring that the material is fully pulverized and meeting the needs of different industrial production and resource recycling.