Temp. data collecting and controlling system of engineering mechanical hydraulic motor radiating system

Abstract

The invention relates to engineering machine hydraulic motor heat elimination system temperature data acquisition and control system. Its features are that using constant displacement motor to drive fan; setting temperature sensor at the outlet of the heat elimination assembly; using its transmitted signal to control proportion electromagnetism pressure reducing valve and adjust the fan; setting the temperature sensor at its inlet to process synchronous acquisition for the outlet and inlet temperature; using electronic control unit to control the acquired signal to generate corresponding drive current and drive proportion electromagnetism pressure reducing valve. Its advantages are that it can control machine working temperature range by controlling fan rotate speed, record each heat radiator inlet and outlet temperature and proportion electromagnet drive current data, estimate the match and performance of the radiator according to the data; it has high utilization factor for engine power; and it can save fuel.

Description

technical field [0001] The invention relates to a temperature data acquisition and control system of a hydraulic motor cooling system of an engineering machinery. Background technique [0002] At present, the fans of domestic construction machinery cooling systems are generally directly driven by the fan output shaft of the engine. There are two main disadvantages in this way: [0003] 1. The fan speed is always consistent with the engine speed, and the fan speed cannot be adjusted according to the environmental requirements. For example: when the machine is used in a hot environment, the fan speed cannot be increased to enhance the heat dissipation capacity of the cooling system, resulting in overheating of the system, causing large wear of the machine, and easy aging of the seals; when used in a colder environment, it is also impossible Reduce the fan speed to reduce the heat dissipation capacity of the heat dissipation system, resulting in low system temperature, high o...

AI Technical Summary

Problems solved by technology

[0003] 1. The fan speed is always consistent with the engine speed, and the fan speed cannot be adjusted according to the environmental requirements

For example: when the machine is used in a hot environment, the fan speed cannot be increased to enhance the heat dissipation capacity of the cooling system, resulting in overheating of the system, causing large wear of the machine, and easy aging of the seals; when used in a colder environment, it is also impossible Reduce the fan speed to reduce the heat dissipation capacity of the heat dissipation system, resulting in low system temperature, high oil viscosity, low machine efficiency and other problems

[0004] 2. The position of the fan is fixed (it must be connected with the output shaft of the engine fan), and the position of the cooling system is also relatively fixed, resulting in inflexible layout of the overall design of the machine

[0005] 3. Low utilization rate of engine power, waste of fuel

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