Imported hydraulic motor gear pump with impeller pressurized liquid supply

Abstract

The imported hydraulic motor gear pump with impeller pressurized liquid supply is an integrated body of motor, centrifugal pump impeller and gear pump. The oil inlet is equipped with an impeller. The problem of insufficient oil absorption of the gear pump is solved, especially at higher speeds, the improvement of the oil absorption efficiency of the gear pump is more obvious, and the cavitation noise caused by insufficient oil absorption is also avoided; the motor rotor (10) is installed on the main shaft through interference fit (7), the first bearing (8) and the second bearing (19) are supported on the casing (1), the gear set (4) is installed on the front end cover (3), through the first flat key (5) Connected with the main shaft (7), the impeller (16) is set between the rear end cover (15) and the inner end cover (14), and connected with the main shaft (7) by the second flat key (17), the two ends of the main shaft (7) Sealed by the first seal (9) and the second seal (20).

Description

technical field [0001] The invention relates to a hydraulic motor pump, in particular to an imported hydraulic motor gear pump with an impeller for pressurized liquid supply. Background technique [0002] The traditional hydraulic oil pump unit has large volume, high noise, external leakage, unfriendly man-machine, etc. Based on this, the design concept of the hydraulic motor pump came into being. The core idea is to integrate the driving motor and the hydraulic pump, eliminating the need Shaft unit, oil-cooled instead of fan-cooled motor, has the advantages of compact structure, low noise, good heat dissipation, man-machine friendliness, etc. There are mature series of motor pump products abroad, but the hydraulic pump is inherently insufficient in oil absorption, and it is quite serious and high-speed At this time, the efficiency of the hydraulic pump is particularly low, so the efficiency of the hydraulic motor pump is not high, even lower than that of the traditional hyd...

AI Technical Summary

Problems solved by technology

[0002] The traditional hydraulic oil pump unit has large volume, high noise, external leakage, unfriendly man-machine, etc. Based on this, the design concept of the hydraulic motor pump came into being. The core idea is to integrate the driving motor and the hydraulic pump, eliminating the need Shaft unit, oil-cooled instead of fan-cooled motor, has the advantages of compact structure, low noise, good heat dissipation, man-machine friendliness, etc. There are mature series of motor pump products abroad, but the hydraulic pump is inherently insufficient in oil absorption, and it is quite serious and high-speed , the efficiency of the hydraulic pump is particularly low, so the efficiency of the hydraulic motor pump is not high, even lower than that of the traditional hydraulic oil pump set

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