Fast insertion type external water pump for mining diesel engine

Abstract

The invention provides a fast insertion type external water pump for a mining diesel engine. The fast insertion type external water pump for the mining diesel engine comprises a water pump shell. An end cover is arranged at one end of the water pump shell. A water pump impeller driving shaft and an impeller are arranged in the water pump shell. A water inlet and a water outlet are arranged on the water pump shell. The water pump impeller driving shaft extends out from the other end of the water pump shell and is connected with an internal spline shaft. A spline supporting sleeve is arranged outside the internal spline shaft. A bearing is installed between the outside of the internal spline shaft and the inside of the spline supporting sleeve. The rear end of the spline supporting sleeve is bow-bottom-shaped. The water pump impeller driving shaft passes through from the bowl bottom, and a motive seal is arranged between the water pump impeller driving shaft and the bowl bottom of the spline supporting sleeve. A flange disc is connected in the periphery of a front opening of the spline supporting sleeve, and the flange disc is provided with an installing and connecting hole. The external water pump is connected with a shell flange of a power shaft through connecting with a flange. The internal spline shaft is connected with an external spline on the power shaft. Butt joint of the fast insertion type external water pump and a power output shaft is completed, and the spline replaces a transmission belt wheel for transmission, so that the input shaft power of the fast insertion type external water pump is reduced, and the fast insertion type external water pump is convenient to install and saves the space.

Description

technical field [0001] The invention belongs to the application field of explosion-proof diesel engines for mines, in particular to a quick-plug type external water pump for a double cooling system of an explosion-proof diesel engine for mines. Background technique [0002] The water pumps used in current mining explosion-proof diesel engines are all pulley-driven water pumps. For the cooling system of mining diesel engines with strict explosion-proof requirements, they have the following deficiencies: [0003] 1. If the pulley of the built-in water pump is directly reduced and the speed is increased, the power consumption will be too large; [0004] 2. If a pulley-driven water pump is directly added, the gear train must be added; [0005] 3. Poor transmission stability and high noise. [0006] It is because of the above reasons that it is difficult to arrange the parts of the mine explosion-proof diesel engine and the use function is difficult to satisfy. Contents of th...

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Problems solved by technology

[0003] 1. If the pulley of the built-in water pump is directly reduced and the speed is increased, the power consumption will be too large;

[0004] 2. If a pulley-driven water pump is directly added, the gear train must be added;

[0005] 3. Poor transmission stability and loud noise

[0006] It is precisely because of the above reasons that it is difficult to arrange the parts of the mining explosion-proof diesel engine and the use function is difficult to meet

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