Engineering machine, cooling method and cooling system for heating components in engineering machine

Abstract

The invention discloses a cooling method for a heating component in an engineering machine. The cooling method includes determining a preset temperature according to working states of the heating component; measuring the actual temperature; judging whether the actual temperature is equal to the preset temperature or not; if equal, then continuing to measure the temperature; otherwise, regulating rotational speed of a motor and changing flow of a water pump to change flow of coolant in a cooling loop, and finally regulating a cooling effect of the cooling method. The preset temperature and the actual temperature can be temperature of the heating component, can also be the temperature of the coolant in the cooling loop. By the cooling method, the heating component can be cooled optimally according to requirements to the temperature. The invention further discloses a cooling system utilizing the cooling method and the engineering machine utilizing the cooling system.

Description

technical field [0001] The invention relates to the technical field of construction machinery, in particular to a cooling method and system for heat-generating components in construction machinery, and furthermore, to a construction machinery. Background technique [0002] The cooling device of construction machinery is usually directly driven by the engine, and its installation and operating power depend on the engine. This cooling device can only circulate the cooling liquid according to the operating conditions of the engine, and cannot adjust and control the rotating speed of the water pump. [0003] With the continuous development and progress of construction machinery, energy conservation and emission reduction have become a new direction for the development of construction machinery, and hybrid machinery has gradually become a model for energy conservation and environmental protection in the new era. Taking a hybrid bulldozer as an example, its power transmission use...

AI Technical Summary

Problems solved by technology

Furthermore, the cooling temperature required by the engine and the heat-generating components is quite different. The traditional cooling method is uncontrollable, and it is difficult to meet the cooling requirements of each heat-generating component at the same time.

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