Mechanical seal wear-resistant pipeline self-priming sewage pump

Abstract

This application relates to the field of self-priming sewage pumps, and more particularly to a mechanically sealed, wear-resistant pipeline self-priming sewage pump, which includes a pump casing, a housing, a pump shaft, an impeller, a stationary ring, a telescopic component, and a lubricating component. The outer wall of the pump casing is detachably connected to the outer wall of the housing. The pump casing has a pump chamber, and a connection port is provided at one end of the pump casing facing the housing, communicating with the pump chamber. The pump shaft passes through the connection port, and the impeller is located inside the pump chamber and coaxially fixedly connected to the pump shaft. The stationary ring is fitted around the outer circumference of the pump shaft and is fixedly connected to the inner wall of the pump chamber. The telescopic component is located between the impeller and the stationary ring, with one end fixedly connected to the impeller and the other end abutting against the stationary ring. The lubricating component is fixedly connected to the outer wall of the pump casing and has an oil outlet communicating with the connection port. Lubricating oil is discharged from the oil outlet, and the lubricating oil passes through the connection port, lubricating the stationary ring and the pump shaft, and further lubricating the stationary ring and the telescopic component, thus extending the service life of the self-priming sewage pump.

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