A remote fault diagnosis system and method for a loader

A fault diagnosis system and fault diagnosis technology, applied to earth movers/excavators, construction, etc., can solve problems such as inability to diagnose loader faults, deterioration of system functions, and inability to judge fault points for maintenance, etc.

Active Publication Date: 2022-02-25
HUAIAN COLLEGE OF INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] A fault is a state in which a system cannot perform a specified function
Generally speaking, a fault refers to an event in which the function of some components in the system fails and the function of the entire system deteriorates. When the loader fails, it is impossible to diagnose the fault location of the loader at the first time, so that it is impossible to judge the fault point for maintenance

Method used

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  • A remote fault diagnosis system and method for a loader
  • A remote fault diagnosis system and method for a loader
  • A remote fault diagnosis system and method for a loader

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0080] Example 1: Restricted conditions: when the collected time data is set to 9:00, 9:15, 9:30, 9:45, 10:00, 10:15, when the time is 9:00, 9:15, At 9:30, 9:45, 10:00, and 10:15, the oil sensor monitors the oil consumption rate of the loaded oil at the above times. The values ​​are 13L / h, 13.5L / h, 14.5L / h, 14L / h h, 16L / h, the value of the oil sensor monitoring the temperature data of the loaded oil at the above time is 70 degrees, 71.5 degrees, 72 degrees, 76 degrees, 81 degrees, 83.5 degrees, and the noise monitor is at the above time. The internal noise decibels are monitored at 85dB, 87dB, 91dB, 95dB, 89dB. The oil consumption rate, oil temperature data and noise decibel monitored by the oil sensor and noise monitor are within the normal thresholds. The oil sensor And the noise monitor does not send data to the performance evaluation module.

Embodiment 2

[0081] Example 2: Restricted conditions: when the collected time data is set to 8:00, 8:05, 8:10, 8:15, 8:20, 8:25, when the time is 8:00, 8:05, At 8:10, 8:15, 8:20, and 8:25, the oil sensor monitors the oil consumption rate of the loaded oil at the above times. The values ​​are 13L / h, 14.5L / h, 16L / h, 17.5L / h h, 18.9L / h, the value of the oil sensor monitoring the temperature data of the loaded oil at the above time is 75.5 degrees, 81 degrees, 86 degrees, 95.5 degrees, 97 degrees, the noise monitor at the above time. The values ​​of noise decibels monitored are 85dB, 87dB, 95dB, 103dB, and 101dB. The oil consumption speed, oil temperature data and noise decibel monitored by the oil sensor and noise monitor exceed the normal threshold. The oil temperature data and noise decibel data are sent to the performance evaluation module, and the different thresholds of the collected oil consumption speed, oil temperature data and noise decibel are set to L1, L2, and L3, where L1=19L / h, ...

Embodiment 3

[0087]Example 3: Restricted conditions: when the collected time data is set to 10:00, 10:10, 10:20, 10:30, 10:40, 10:50, when the time is 10:00, 10:10, At 10:20, 10:30, 10:40, and 10:50, the oil sensor monitors the oil consumption rate of the loaded oil at the above times. The values ​​are 17L / h, 18.5L / h, 19.8L / h, 21L / h h, 22.3L / h, the value of the oil sensor monitoring the temperature data of the loaded oil at the above time is 86 degrees, 93 degrees, 97 degrees, 102 degrees, 99 degrees, the noise monitor at the above time The noise decibel values ​​monitored are 95dB, 103dB, 121dB, 119dB, and 125dB. The oil consumption speed, oil temperature data and noise decibel monitored by the oil sensor and noise monitor exceed the normal thresholds. The oil temperature data and noise decibel data are sent to the performance evaluation module, and the different thresholds of the collected oil consumption speed, oil temperature data and noise decibel are set to L1, L2, and L3, where L1=1...

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Abstract

The invention discloses a remote fault diagnosis system for a loader and a method thereof. The remote fault diagnosis system includes an oil monitoring module, a noise monitoring module, a workpiece monitoring module, a performance evaluation module, a fault diagnosis module and a remote transmission module; The oil monitoring module, noise monitoring module, workpiece monitoring module are electrically connected to the performance evaluation module, and the performance evaluation module and the remote transmission module are electrically connected to the fault diagnosis module; the performance evaluation module is used to compare the oil data, noise data and workpiece data with the normal The data is compared and evaluated, and the PLC chip is used for fault diagnosis, so as to carry out fault diagnosis for the loader.

Description

technical field [0001] The invention relates to the field of loaders, in particular to a remote fault diagnosis system and method for loaders. Background technique [0002] Loader is a kind of earth and stone construction machinery widely used in highway, railway, construction, hydropower, port, mine and other construction projects. It is mainly used to shovel bulk materials such as soil, sand, lime, coal, etc. , hard soil, etc. for light shovel excavation. It can also carry out bulldozing, lifting and loading and unloading of other materials such as wood by changing different auxiliary working devices. [0003] In roads, especially in high-grade highway construction, loaders are used for filling and excavating roadbed engineering, aggregate and loading of asphalt mixture and cement concrete yard. In addition, it can also carry out operations such as pushing soil, scraping the ground and pulling other machinery. Because the loader has the advantages of fast operation spee...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02F9/26
CPCE02F9/267
Inventor 刘朋张秋霞汪进常绿豆琼森李文龙
Owner HUAIAN COLLEGE OF INFORMATION TECH
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