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Timing method and system for excavator working condition recognition and excavator

A technology of working condition identification and timing system, which is applied in the directions of earthmovers/shovels, construction, etc., can solve the problem that excavators cannot accurately distinguish earthwork, stonework, and crushing working conditions, so as to facilitate mass promotion, The effect of few input signals and simple decision logic

Active Publication Date: 2021-03-16
LIUZHOU LIUGONG EXCAVATORS +2
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide an excavator that can accurately identify the earthwork, stonework, and crushing operations of the excavator, aiming at the problem that the existing excavator cannot accurately distinguish the earthwork, stonework, and crushing operations. Working condition identification method and system and excavator

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  • Timing method and system for excavator working condition recognition and excavator
  • Timing method and system for excavator working condition recognition and excavator

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Embodiment Construction

[0024] The specific implementation will be described below in conjunction with the accompanying drawings.

[0025] Such as figure 1 As shown in the excavator working condition recognition and timing system, the excavator has a vehicle-mounted controller 1, boom, stick, bucket, and boom cylinder, stick cylinder, and bucket cylinder 2 for their actions. There are corresponding main control valves on the driving oil circuits of the arm cylinders and bucket oil cylinders. The control ends of the main control valves are connected with the pilot control device. By operating the pilot control device, the boom cylinder, arm cylinder, The expansion and contraction of each oil cylinder such as the bucket oil cylinder can realize various operation actions such as the lifting of the boom, the forward swing opening and rear swing recovery of the arm, and the forward swing open and backward swing recovery of the bucket.

[0026] The pilot control device can be a pilot valve connected to th...

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Abstract

The invention relates to an excavator. In order to solve the problem that an existing excavator is unable to accurately recognize the conditions, such as earthwork, stonework and breakage, so as to provide precise timing, provided are a condition recognition method and system and an excavator. The method herein includes: detecting a pilot control signal of the excavator; if the pilot control signal only includes a bucket rod and / or bucket retraction, acquiring a pressure value of a rodless cavity of a bucket cylinder during an acting period of the signal, making statistics and calculating percent of time N that occurs when average pressure P of the bucket and the pressure value are greater than or equal to a first preset pressure value; judging stonework or earthwork condition according tothe average pressure P and the percent of time; when a moving arm has a lowered pilot control signal, acquiring a pressure signal of the rodless cavity of the bucket cylinder within a preset time after the signal is over, and judging whether the excavator is in breakage condition. The excavator condition recognition and timing method and system and the excavator have the advantages that few signals are input, the judging logic is simple, and the three main conditions of the excavator concerned can be effectively recognized.

Description

technical field [0001] The present invention relates to an excavator, more specifically, to an excavator working condition identification method and system and the excavator. Background technique [0002] Excavators are widely used in the construction of mining, construction, water conservancy and hydropower projects due to their excellent adaptability to working conditions. Products of the same tonnage often have relatively different working conditions, resulting in large differences in the life of the whole machine. In the early stage of product development, it is of great significance to carry out the investigation and analysis of product use conditions for the selection of design schemes in the subsequent product development process. In the past, the investigation of the working conditions of the whole machine was carried out by means of visits and telephone surveys, which had shortcomings such as limited sample size and difficulty in guaranteeing the authenticity of da...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02F9/20E02F9/22
CPCE02F9/20E02F9/2004E02F9/2025E02F9/22E02F9/2221E02F9/2267
Inventor 邢树鑫李健卢春霖程盼
Owner LIUZHOU LIUGONG EXCAVATORS
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