Blockage-free high-suction-height self-priming pump

Abstract

The invention discloses a blockage-free high-suction-height self-priming pump. The pump comprises a fixed motor, a bearing seat, an end cover, a pump body, a water inlet pipe and an impeller, two lead screws are rotationally installed on the bearing seat and fixedly connected with a lifting plate, a plurality of buffer springs are installed on the lifting plate, adjusting plates are installed at the ends, away from the lifting plate, of the buffer springs, a plurality of balls are installed on the adjusting plates, a main shaft is installed at the end of an output shaft of the fixed motor and located between the two adjusting plates, and two heat dissipation layers are arranged in an inner cavity of the bearing seat. According to the self-priming pump, through the design of the two heat dissipation layers in the inner cavity of the bearing seat, the heat dissipation effect of the bearing seat can be effectively improved, the main shaft can be conveniently adjusted through the self-priming pump, the conditions of deviation and precision reduction caused by overheating in the rotating process of the main shaft are prevented, and through the arrangement of the buffer springs, vibration generated in the rotating process of the main shaft can be buffered to a certain degree, and the service life of the main shaft is effectively prolonged.

Description

technical field [0001] The invention relates to the technical field of self-priming pump design, in particular to a non-clogging high-suction self-priming pump. Background technique [0002] The self-priming pump is a self-priming centrifugal pump, which has the advantages of compact structure, convenient operation, stable operation, easy maintenance, high efficiency, long life, and strong self-priming ability. There is no need to install a bottom valve in the pipeline, and it is only necessary to ensure that there is a quantitative suction liquid stored in the pump body before work. During the use of the existing self-priming pump, the main shaft tends to deviate due to rotation overheating, and at the same time, the main shaft tends to vibrate to a certain extent during long-term use. At the same time, the existing self-priming pumps usually have a certain filter structure at the water inlet, which easily leads to a reduction in the efficiency of water delivery, and at th...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a non-clogging high-suction self-priming pump to solve the following technical problems: (1) The heat dissipation effect of the bearing seat can be effectively increased through the design of two heat dissipation layers in the inner cavity of the bearing seat. It can facilitate the adjustment of the spindle and prevent the occurrence of deviation and precision drop caused by overheating of the spindle during rotation. Through the setting of the buffer spring, the vibration generated during the rotation of the spindle can be buffered to a certain extent, effectively improving the use of the spindle. (2) The self-priming pump drives the screw auger and the serpentine stirring rod to rotate at the same time when the water is delivered through the setting of the rotating shaft and the telescopic shaft. The auger can cooperate with the negative pressure in the pump body cavity to increase the water delivery efficiency At the same time, it can improve the efficiency of water passing through the filter plate. The structure of the serpentine stirring rod prevents some impurities from passing through the filter plate and entering the water inlet pipe to precipitate and affect the water delivery; (3) Through the lifting design of the spiral auger, the The impurities between the filter plate and the sealing valve core are transported to the processing chamber, and the cleaning roller in the processing chamber can be cleaned by the auger during rotation, which is convenient for the auxiliary transportation of water by the subsequent auger

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