Raising speed control energy saving system and method for excavator

An energy-saving system and excavator technology, which is applied in mechanically driven excavators/dredgers, earthmovers/shovels, construction, etc., can solve problems such as fuel consumption, deterioration of work performance, and heating of hydraulic systems, to avoid The effect of power loss
CN102733441AActive Publication Date: 2012-10-17SANY HEAVY MACHINERY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SANY HEAVY MACHINERY
Publication Date
2012-10-17

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Abstract

The invention discloses a raising speed control energy saving system and a raising speed control energy saving method for an excavator. The raising speed control energy saving system comprises a pilot pressure sensor, a controller and an accelerator control mechanism. The pilot pressure sensor is used for detecting pilot pressure signals of all actions of the excavator; the controller is connected with an accelerator knob and the pilot pressure sensor of the excavator; the accelerator control mechanism is connected with the controller; and the controller controls the openness of an accelerator based on working gears transferred by the accelerator knob and load conditions detected by the pilot pressure sensor according to different stages by the accelerator control mechanism. By the system and the method, the power loss of an engine is avoided, and the engine and a main pump run in the most economic state. Moreover, the efficiency of large excavators is improved, and oil consumption is reduced under the condition that auxiliary equipment is not added.
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Description

technical field

[0001] The invention relates to the field of engineering machinery, in particular to an excavator speed-up control energy-saving system and method. Background technique

[0002] Large-scale hydraulic excavators are important construction machinery, which have the advantages of large digging force, high production efficiency, strong environmental adaptability, and wide adaptability.

[0003] However, due to the complex operating conditions of large hydraulic excavators, frequent load changes and large change ranges during the operation process, there are many links of energy loss. For example, in the prior art, after the excavator is in gear, the engine speed will directly increase to the target speed of the gear, and when the load is connected, the engine speed will drop freely on the basis of the target speed. The problem caused by this operation is that if the excavator does not use the workload for a period of time after it is in gear, it will consume too...

Claims

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