3results about How to "Guaranteed rotation efficiency" patented technology

This invention relates to the field of centrifugal pump technology, specifically disclosing a vertical multistage stainless steel centrifugal pump to solve the problems of how to avoid friction between the impeller and the cavity and poor sealing between multiple impellers; specifically, it includes: a centrifugal pump assembly; the centrifugal pump assembly includes a base, a centrifugal pump housing is installed on the top of the base, a connecting seat is fixed to the outer wall of the centrifugal pump housing, the connecting seat is connected to a motor base located above the centrifugal pump housing via a connecting part, and a motor body is installed on the top of the motor base; this invention abandons the cavity design of traditional vertical multistage stainless steel centrifugal pumps, solving the problems of excessive temperature and wear of the impeller body and inner tank due to friction, thereby improving the working efficiency and service life of the entire centrifugal pump assembly, and the setting of the sealing component can ensure the sealing of the adsorption chamber, thereby ensuring the negative pressure adsorption capacity of the impeller body, and thus ensuring the liquid delivery efficiency of the entire centrifugal pump assembly.

The utility model relates to the technical field of papermaking equipment, in particular to a conveying belt supporting device in papermaking equipment, which is arranged between an upper layer and a lower layer of a conveying belt and supports the upper layer of the conveying belt, two ends of the conveying belt surround a return rail and are driven by a motor, the supporting device comprises a rotating roller and a supporting frame, and two ends of the rotating roller are mounted on the supporting frame. By adjusting the length of the lower section of the telescopic rod extending into the supporting sleeve and adjusting the mounting height of the rotating roller, the stress concentration phenomenon of a return rail area is remarkably reduced, the bearing uniformity and the running smoothness are synchronously improved, and therefore the service life of the conveying belt is prolonged; the rotating roller comprises a main shaft and a shell, the main shaft is sleeved with the shell, rolling bearings are arranged at the two ends of the main shaft, the rotating efficiency of the shell is guaranteed by additionally arranging the rolling bearings, the friction coefficient of system operation is low, and efficient conveying of the conveying belt is achieved.

The telescopic mounting frame for the tooth bottom grinding machine comprises a bottom plate, a supporting plate is fixedly connected to the upper surface of the bottom plate, a supporting shaft is rotatably connected to the interior of the supporting plate, a supporting rod is fixedly connected to the side surface of the supporting shaft, a first motor is fixedly connected to the right surface of the supporting rod, and a lead screw is fixedly connected to the output end of the first motor. The side surface of the lead screw is in threaded connection with a sliding block, the lower surface of the sliding block is fixedly connected with an electric telescopic rod, the lower end of the electric telescopic rod is fixedly connected with a clamping plate, the rear surface of the clamping plate is fixedly connected with a second motor, the output end of the second motor is fixedly connected with a rotating shaft, and the side surface of the rotating shaft is fixedly connected with a grinding wheel. A hydraulic telescopic ring is fixedly connected to the left surface of the supporting plate, a first hydraulic telescopic rod is fixedly connected to the upper surface of the bottom plate, a mounting shell is fixedly connected to the front end of the first hydraulic telescopic rod, and a second hydraulic telescopic rod is fixedly connected to the inner wall of the mounting shell.