一种高精度台式旋转超声岩石取心装置

韩光超; 余雍; 潘高峰; 李艳云; 刘初见; 章军锋

doi:10.3799/dqkx.2018.391

一种高精度台式旋转超声岩石取心装置

doi: 10.3799/dqkx.2018.391

1.
中国地质大学机械与电子信息学院, 湖北武汉 430074
2.
中国地质大学地球科学学院, 地质过程与矿产资源国家重点实验室, 湖北武汉 430074

基金项目:

国家自然科学基金项目 41227001

中国地质大学（武汉）实验技术研发项目 SJ-201516

机械系统与振动国家重点实验室开放课题 MSV-201910

详细信息

作者简介:
韩光超(1974-), 男, 副教授, 主要从事超声辅助成形加工工艺与装备研究

中图分类号: TG663;P589
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- 被引次数: 0
出版历程
- 收稿日期: 2018-12-30
- 刊出日期: 2020-02-15

A High-Precision Bench-Toprotary Ultrasonic Rock Coring Device

1.
Faculty of Mechanical & Electronic Information, China University of Geosciences, Wuhan 430074, China
2.
State Key Laboratory of Geological Processes and Mineral Resources, School of Earth Sciences, China University of Geosciences, Wuhan 430074, China

摘要

摘要: 将野外采集或实验室合成的岩石样品制备成小尺寸柱状岩心样品，是进行地质学岩石高温高压物性实验的重要环节.岩石样本的脆硬性和成分不均匀性严重影响常规岩石磨削取心加工过程的稳定性和取心质量.将取样工具的旋转超声振动与岩石磨削加工过程相结合，并通过气动系统实现岩石样本在竖直方向上的柔性进给，所研制的台式旋转超声岩石取心装置可实现实验室小尺寸柱状岩心样品的高精度自动磨削取心加工过程.多种不同地质材料的取心测试结果表明，该装置能进行不同硬度岩石样品的高效率和高质量小直径取心加工，满足地质学高温高压实验的高标准制样需求.
- 岩石取心 /
- 旋转超声振动 /
- 磨削 /
- 柔性进给 /
- 高温高压实验
Abstract: The preparation of small-size cylindrical rock samples from the rock samples collected in field or synthesized in the laboratory is an important procedure for high-pressure and high-temperature rock physics experiments in geosciences. The brittle hardness and in homogeneity of rock samples can affect significantly the stability and coring quality of conventional rock core grinding process. To overcome this technique difficulty, we combined the techniques of rotary ultrasonic vibration and rock grinding and developed a flexible high-pressure air-operated sample feeding system along the vertical direction in a bench-top rotary ultrasonic rock coring device. This device can realize high-precision automatic coring and grinding of small-size cylindrical rock specimen.The coring tests on rock specimens of various hardness show that the new device can conduct high-efficiency and highquality small-diameter sample coring and satisfy the high-standard requirements of high-pressure and high-temperature geological experiments.
- rock coring /
- rotary ultrasonic vibration /
- grinding /
- flexible feeding /
- high-pressure and high-temperature geological experiments

HTML全文

图 1 旋转超声岩石磨削取心加工原理图

Fig. 1. Schematic diagram of rotary ultrasonic grinding for rock coring

下载: 全尺寸图片幻灯片

图 2 超声振动系统结构示意图

Fig. 2. Schematic diagram of ultrasonic vibration systems

下载: 全尺寸图片幻灯片

图 3 超声系统振动模态仿真图

Fig. 3. Simulation diagram of vibration mode of ultrasonic system

下载: 全尺寸图片幻灯片

图 4 超声旋转系统结构示意图

Fig. 4. Schematic diagram of ultrasonic rotation system

下载: 全尺寸图片幻灯片

图 5 旋转超声岩石取心装置

Fig. 5. Rotary ultrasonic rock coring device

下载: 全尺寸图片幻灯片

图 6 取心加工材料（a）和取心工具头（b）

Fig. 6. Coring materials (a) and coring tool head (b)

下载: 全尺寸图片幻灯片

图 7 旋转超声工艺参数对磨削取样效率的影响

Fig. 7. Effect of rotating ultrasonic parameters on coring efficiency

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图 8 旋转超声取心样品

Fig. 8. Rotating ultrasonic coring samples

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表 1 取心加工材料的硬度值

Table 1. Hardness value of coring materials

材料	玻璃	氧化铝陶瓷	灰岩	片麻岩	榴辉岩	橄榄岩	安山岩	石英岩
莫式硬度/普氏硬度	5.5/-	9/-	3/2~4	-/14~16	6~7/-	-/16~18	-/20~25	7.5/ > 25

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表 2 不同硬度的硬脆材料超声磨削取心加工性能

Table 2. Ultrasonic coring properties of hard and brittle materials with different hardness

材料	样品长度(mm)	取样时间(min)	样品直径(mm)	样品头尾直径偏差(mm)	取样率
玻璃	10.0	9.0	2.69	0.03	100%
氧化铝陶瓷	10.0	16.3	2.70	0.02	100%
灰岩	9.5	4.1	2.68	0.02	100%
片麻岩	11.0	9.8	2.68	0.01	100%
榴辉岩	10.6	10.3	2.69	0.01	100%
橄榄岩	10.4	11.3	2.69	0.01	100%
安山岩	10.5	12.6	2.69	0.02	100%
石英岩	10.5	14.5	2.68	0.02	100%

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