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Vibration auxiliary control method and control system of vibratory roller and vibratory roller

A vibratory roller, auxiliary control technology, applied in the direction of general control system, control/regulation system, computer control, etc., can solve the problems of soil material fragmentation, unstable compaction process, etc., and achieve the effect of simplifying structure and operation

Pending Publication Date: 2021-12-31
XCMG CONSTR MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Excessively strong vibration of the vibrating wheel of the road roller will cause the vibrating wheel to tend to jump off the ground without keeping in close contact with the ground, that is, bouncing vibration. The bouncing vibration of the vibrating wheel may cause the vibrating wheel to strongly impact the compacted soil and cause the soil material to break , at the same time may lead to instability in the compaction process, therefore, a variety of anti-bounce control systems have been proposed in the industry

Method used

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  • Vibration auxiliary control method and control system of vibratory roller and vibratory roller
  • Vibration auxiliary control method and control system of vibratory roller and vibratory roller
  • Vibration auxiliary control method and control system of vibratory roller and vibratory roller

Examples

Experimental program
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Effect test

Embodiment 1

[0100] For the vibration auxiliary control method of a vibratory roller provided in this embodiment, see figure 1 , including the following steps:

[0101] Step 11, continuously monitor and obtain the acceleration signal of the vibration wheel in the direction vertical to the ground during the vibration process of the road roller.

[0102] In some implementations of this embodiment, the vibration process can be selected in the following manner:

[0103] The vibration process includes the whole process from vibration start to complete vibration stop.

[0104] The vibration process includes a certain period from the start of the vibration to the complete stop of the vibration.

[0105] Step 12, continuously process the above acceleration signal, and obtain the frequency spectrum of the displacement with time at regular intervals. Based on the frequency spectrum of the displacement at the current moment, the maximum displacement amplitude A and the frequency f corresponding to t...

Embodiment 2

[0126] For the vibration auxiliary control method of a vibratory roller provided in this embodiment, see figure 2 ,include:

[0127] Step S101: Continuously monitor and obtain the acceleration signal of the vibrating wheel in the direction vertical to the ground during the whole process from the start of vibration of the road roller to the complete stop of vibration.

[0128] For example, when the complete road roller is powered on, the acceleration sensor arranged on the vibrating wheel starts to continuously monitor and obtain the acceleration signal of the vibrating wheel of the road roller in the direction vertical to the ground, and continues until the complete machine is powered off.

[0129] For example, when the engine of the road roller is started, the acceleration sensor arranged on the vibration wheel starts to continuously monitor and obtain the acceleration signal of the vibration wheel of the road roller in the direction vertical to the ground, and continues unt...

Embodiment 3

[0159] For the vibration auxiliary control method of a vibratory roller provided in this embodiment, see image 3 ,include:

[0160] Step S201: Monitor and obtain the acceleration signal of the vibrating wheel in the direction vertical to the ground during a certain period of time during the whole process from the start of vibration of the road roller to the complete stop of vibration.

[0161] Segmentation helps to combine other information to count the vibration results in a certain area.

[0162] For example: monitor the vibration process of the vibrating wheel from the moment the roller starts pressing the vibrating button to when the vibrating button is disconnected, and obtain the acceleration signal of the vibrating wheel in the direction vertical to the ground for a period of time. This period does not include the acceleration signal from when the vibration button is disconnected to when the vibration wheel completely stops vibrating, but it can be obtained simply by ...

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Abstract

The invention discloses a vibration auxiliary control method and system for a vibratory roller and the vibratory roller. The auxiliary control method comprises the following steps: acquiring excitation frequency, subharmonic frequency and corresponding amplitude through area search; judging the vibration degree, so that misjudgment caused by errors of a measurement system when the road roller is in a vibration-free or weak-vibration state is reduced; intelligently determining the jump vibration degree of the vibration wheel of the road roller by setting an amplitude threshold value, grading the jump vibration degree, and taking corresponding measures. According to the invention, the compaction capability can be enhanced by utilizing jump vibration, so that the soil can be rapidly compacted, and the auxiliary control of the road roller is realized.

Description

technical field [0001] The invention relates to a vibration auxiliary control method of a vibratory roller, a control system and the vibratory roller, belonging to the technical field of vibratory roller control. Background technique [0002] The vibratory roller makes the particles of the compacted soil (such as earth-rock fill and road pavement mixture) vibrate at a high frequency with the vibration load it sends out, and loses the internal friction force between the particles, forcing these particles to rearrange and compact, with a more compact structure. High compaction efficiency and better compaction effect have gradually become the mainstream. In the industry, the vibration system composed of the compacted soil, the vibrating wheel of the road roller and the upper vehicle of the road roller is usually studied. This system is generally called the "road roller-soil" vibration system. [0003] Excessively strong vibration of the vibrating wheel of the road roller will ...

Claims

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Application Information

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IPC IPC(8): G05B19/042E01C19/28
CPCG05B19/0423E01C19/282G05B2219/24215
Inventor 夏磐夫段吉轮林栋冰牛春亮韩晨起黄析范冬冬刘浩朱冠亚邵发展李贝
Owner XCMG CONSTR MACHINERY
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