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Method and device for actively reducing action impact of excavator and engineering machinery

A technology for excavators and working devices, applied to mechanically driven excavators/dredgers, earth movers/shovels, construction, etc., can solve problems such as lag, reduce impact, improve work efficiency, and reduce operation The effect of capacity requirements

Active Publication Date: 2021-04-09
SANY HEAVY MACHINERY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention provides a method for actively reducing the impact of excavator action, which is used to solve the problem that the impact of excavator working devices can only be passively mitigated in the prior art, and There is an obvious hysteresis defect in the action of buffering the impact, so as to realize the active mitigation of the impact on the working device and improve the efficiency and effect of impact mitigation

Method used

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  • Method and device for actively reducing action impact of excavator and engineering machinery
  • Method and device for actively reducing action impact of excavator and engineering machinery
  • Method and device for actively reducing action impact of excavator and engineering machinery

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Embodiment Construction

[0068] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are part of the embodiments of the present invention , but not all examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0069] Combine below Figure 1 to Figure 4 The method for actively reducing the impact of the excavator action of the present invention (abbreviated as "method" in the embodiment of the present invention) is described.

[0070] Such as figure 1 with figure 2 Shown, the method provided by the invention comprises:

[0071] Step 1 100: Based on the comparison result between the preset displ...

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Abstract

The invention provides a method and device for actively reducing action impact of an excavator and engineering machinery. The method comprises the steps that on the basis of the comparison result between a preset displacement adjusting range of a working device and the real-time telescopic displacement of all driving oil cylinders, the working device in the state close to a limit position is judged and recognized; the corresponding driving oil cylinders are driven to execute a first control decision, so that the working device in the state close to the limit position is driven to be switched to a buffer operation state. According to the method and the device, the working device in the state close to the limit position is pre-judged and recognized so that the impact on the working device can be actively reduced, the hysteresis defect of a buffer action is overcome, and the execution efficiency and the execution effect of the buffer action are improved.

Description

technical field [0001] The invention relates to the technical field of construction machinery equipment, in particular to a method, device and construction machinery for actively reducing the action impact of an excavator. Background technique [0002] In general, the working device of the excavator is driven by a joystick. A skilled excavator operator can manually operate the working device precisely and smoothly, thereby reducing the impact on the working device. However, for inexperienced operators, it is easy to have unstable operation when performing the fine operation of the joystick, so that when the working device of the excavator moves to the limit position or the working device is damaged due to operational reasons or other reasons When the movement is suddenly stopped, the inertia of the working device is likely to cause a strong impact, which may cause damage to the equipment and reduce work efficiency. [0003] However, when the excavator needs to be operated ...

Claims

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Application Information

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IPC IPC(8): E02F9/20E02F3/04
CPCE02F9/20E02F3/04
Inventor 李宝锋
Owner SANY HEAVY MACHINERY
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