Excavator control method and device and excavator

A control method and excavator technology, applied in the fields of devices, excavators, and excavator control methods, can solve problems such as the decrease in the efficiency of the hydraulic system of the excavator, the unfavorable high-efficiency operation of development and construction personnel, and the decrease in the strike frequency of large breakers, etc., to achieve Effects of avoiding efficiency drop, lowering temperature, and improving cooling efficiency

Active Publication Date: 2019-11-05
SANY HEAVY MACHINERY
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  • Claims
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Problems solved by technology

[0003] At present, due to the large power of the large breaker, the efficiency of the hydraulic system of the excavator may be reduced when the large breaker is used, which will lead to a decrease in the strike frequency of the large breaker, and even damage the breaker, which is not conducive to the development and construction personnel's high efficiency. Operation

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  • Excavator control method and device and excavator
  • Excavator control method and device and excavator
  • Excavator control method and device and excavator

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Embodiment Construction

[0039] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0040] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art wi...

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Abstract

The embodiment of the invention provides an excavator control method and device and an excavator, and relates to the field of engineering control. The method comprises the steps that the temperature of hydraulic oil of the excavator and the oil return pressure of a quartering hammer are obtained; when the temperature is larger than a preset temperature value, the control current of a cooling pumpis increased; and when oil return pressure continuous preset time is larger than a preset pressure value, the control current of a main pump is reduced. The increase of the control current of the cooling pump can increase the output power of the cooling pump and improve the cooling efficiency of the hydraulic oil, so that the temperature of the hydraulic oil can be rapidly reduced, the normal operation of the quartering hammer is ensured, and the efficiency of the hydraulic system of the excavator is avoided; and the reduction of the control current of the main pump can reduce the output powerof the main pump and reduce the oil inlet flow of the quartering hammer, so that the oil return pressure of the quartering hammer is reduced, the damage of filter element of the quartering hammer caused by over-large oil return pressure is avoided, and the service life of the quartering hammer of the excavator is prolonged.

Description

technical field [0001] The invention relates to the field of engineering control, in particular to an excavator control method, device and excavator. Background technique [0002] In the process of engineering construction, excavators equipped with breaker hammers are used more and more frequently, and large breaker hammers are more efficient and economically beneficial. Therefore, developers and construction personnel are more inclined to use large breaker hammers for operations . [0003] At present, due to the large power of the large breaker, the efficiency of the hydraulic system of the excavator may be reduced when the large breaker is used, which will lead to a decrease in the strike frequency of the large breaker, and even damage the breaker, which is not conducive to the development and construction personnel's high efficiency. Operation. Contents of the invention [0004] The purpose of the present invention includes, for example, providing an excavator control...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02F9/20E02F5/30E02F9/22
CPCE02F5/30E02F9/20E02F9/22E02F9/2221E02F9/2232
Inventor 尹满义程义鹏王守伏郭文博
Owner SANY HEAVY MACHINERY
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