CN102120269A - Ultrasonic impact drill - Google Patents
Ultrasonic impact drill Download PDFInfo
- Publication number
- CN102120269A CN102120269A CN2011100068922A CN201110006892A CN102120269A CN 102120269 A CN102120269 A CN 102120269A CN 2011100068922 A CN2011100068922 A CN 2011100068922A CN 201110006892 A CN201110006892 A CN 201110006892A CN 102120269 A CN102120269 A CN 102120269A
- Authority
- CN
- China
- Prior art keywords
- transducer
- ultrasonic
- drill
- drill bit
- ultrasonic impact
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
The invention discloses an ultrasonic impact drill which comprises a drill body and a drill bit, wherein an ultrasonic generator and a transducer are also arranged in the drill body; the ultrasonic generator and the transducer are electrically connected through a cable; an amplitude transformer is arranged between the transducer and the drill bit; the big end of the amplitude transformer is fixedly connected with the transducer; and the small end of the amplitude transformer is connected with the drill rod end of the drill bit. Compared with the prior art, the ultrasonic impact dill disclosed by the invention has the beneficial effects that: when used for drilling a fragile material, the ultrasonic impact dill can not cause breakage and falling, and has very small drilling sound and no noise pollution, thus obtaining an unexpected impact drilling effect on the fragile material.
Description
Technical field
The present invention relates to percussion drill, especially a kind of ultrasonic impact bores.
Background technology
Percussion drill is a kind of boring bar tool of using always.Yet there is following defective in existing percussion drill: the one, when fragile material is holed, can produce fragmentation, obscission; The 2nd, noise is very big.This is a percussion drill boring difficult problem that is always perplexing people.
Summary of the invention
The objective of the invention is to: provide a kind of ultrasonic impact to bore, can not produce fragmentation, obscission when fragile material is holed, and boring sound is very little, does not have noise pollution.
For achieving the above object, the present invention can take following technical proposals:
A kind of ultrasonic impact of the present invention bores, and comprises drill body, and drill bit also is provided with ultrasonic generator and transducer in described drill body, and described ultrasonic generator and transducer are electrically connected by cable; Be provided with the luffing bar between described transducer and the drill bit, the big end of this luffing bar is fixedlyed connected with transducer, and small end is connected with the drill rod end of drill bit.
Described transducer is the piezo-electric effect transducer, and the thickness that constitutes the crystal wafer of this piezo-electric effect transducer is 1/4th of ultrasonic wave wavelength.
Described transducer is a magnetostrictive transducer.
Described luffing bar small end longitudinal section is 1:6-1:10 with the ratio of big end longitudinal section area.
Compared with prior art the invention has the beneficial effects as follows: owing to adopted ultrasonic wave as power, promote drill bit with high velocity shock fragile material, during impact, ultrasonic generator produces the nearly high-frequency alternating current more than 16000 times of vibrations per second, produce mechanical oscillation on the transducer with the electrical current same frequency, drive drill bit and do ultrasonic vibration and impact, fragile material enough produces good crushing effect under high-frequency impact force action, can not produce fragmentation, obscission; And owing to adopted transducer and produced mechanical oscillation through the luffing bar, do not have the transmission bump between the existing percussion drill machinery drive disk assembly, boring sound is very little, does not have noise pollution.Obtained beyond thought percussive drilling effect to fragile material.
Further beneficial effect is: when the ratio of described luffing bar small end longitudinal section and big end longitudinal section area is, the amplitude of described luffing bar small end is 0.05 to 0.1 millimeter, can produce the best percussive drilling effect to fragile material: promptly can not produce fragmentation, obscission.
The present invention is simple in structure, and cost is low, high efficiency.
Description of drawings
Fig. 1 is a structural principle schematic diagram of the present invention.
The specific embodiment
As shown in Figure 1, a kind of ultrasonic impact of the present invention bores, and comprises drill body, drill bit 5, also be provided with ultrasonic generator 1 and transducer 3 in described drill body, described transducer 3 is the piezo-electric effect transducer, and the thickness that constitutes the crystal wafer of this piezo-electric effect transducer is 1/4th of ultrasonic wave wavelength; Described ultrasonic generator 1 and transducer 3 are electrically connected by cable 2; Be provided with luffing bar 4 between described transducer 3 and the drill bit 5, the big end of this luffing bar 4 is fixedlyed connected with transducer 3, and small end is connected with the drill rod end of drill bit 5, and the ratio of these luffing bar 4 small end longitudinal sections and big end longitudinal section area is 1:8.The present invention also is provided with the control device that is used to regulate supersonic generator 1.
The effect of ultrasonic generator 1 is to change industrial-frequency alternating current into supersonic oscillations that certain power output is arranged, makes the required energy of double vibrations so that vibrating head to be provided.Its basic demand is: power output and frequency are adjustable continuously within the specific limits, reliable operation.
The effect of transducer 3 is to convert the high-frequency electrical vibration to mechanical oscillation.Can adopt two kinds of methods of piezo-electric effect and magnetostrictive effect at present.Wherein: (1) piezo-electric effect transducer: quartz crystal, barium titanate (BaTiO
3) and lead zirconate titanate (ZrPbTiO
3) wait material certain voltage in addition on their two interfaces, then will produce certain mechanically deform, this phenomenon is called " piezo-electric effect ".If the two sides adds the alternating voltage of per second more than 16000 times, then this material produces the dilatation of high frequency, and the medium around making is done ultrasonic vibration.In order to obtain maximum ultrasonic intensity, should make transistor be in resonance state, when crystal wafer thickness is that four of ultrasonic wavelength/for the moment, the vibration of generation is ideal.(2) magnetostrictive transducer: materials such as iron, cobalt, nickel and alloy thereof and iron oxysome, its length can or be stretched or the phenomenon that contracts is called magnetostrictive effect along with the intensity in magnetic field of living in.Magnetostrictive transducer can be divided into metal and ferritic two classes again.Metal transducer mechanical strength height, that the unit are width of cloth is penetrated power is big, stable work in work, electroacoustic efficiency lower (30% ~ 40%).Can be used for big or middle power vibrator.Because magnetostrictive effect weakened when temperature raise, need to adopt Forced water cooling.The electroacoustic efficiency higher (＞80%) of the flexible transducer of ferrite mangneto, but mechanical strength is low, and it is little that the unit are width of cloth is penetrated power, can be used for the ultrasonic vibrator of small-power, can adopt air blast cooling or cooling naturally.
The effect of luffing bar 4 is that the amplitude of ultrasonic vibration that transducer is obtained is amplified, to obtain the ultrasonic needed amplitude that vibrates.Luffing bar 4 can amplify amplitude, is because it is a bar of variable cross-section, as shown in Figure 1.Vibrational energy by this each cross section of bar is constant (disregards to propagate and consume), and the little local energy density in cross section is big.The major parameter that characterizes luffing bar performance has: resonant frequency, displacement amplitude multiplication factor, shape factor, input impedance are with frequency and load variations characteristic etc.It is big that major requirement displacement amplitude multiplication factor is wanted, and input impedance is little with the variation of frequency and load.The material requirements acoustic resistance of luffing bar is little, fatigue strength is high.Commonly used 45,65Mn, 40Cr etc.
Claims (4)
1. a ultrasonic impact bores, and comprises drill body, and drill bit (5) is characterized in that: also be provided with ultrasonic generator (1) and transducer (3) in described drill body, described ultrasonic generator (1) and transducer (3) are electrically connected by cable (2); Be provided with luffing bar (4) between described transducer (3) and the drill bit (5), the big end of this luffing bar (4) is fixedlyed connected with transducer (3), and small end is connected with the drill rod end of drill bit (5).
2. ultrasonic impact according to claim 1 bores, and it is characterized in that: described transducer (3) is the piezo-electric effect transducer, and the thickness that constitutes the crystal wafer of this piezo-electric effect transducer is 1/4th of ultrasonic wave wavelength.
3. ultrasonic impact according to claim 1 bores, and it is characterized in that: described transducer (3) is a magnetostrictive transducer.
4. according to claim 1, or 2, or 3 described ultrasonic impacts bore, and it is characterized in that: described luffing bar (4) small end longitudinal section is 1:6-1:10 with the ratio of big end longitudinal section area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100068922A CN102120269A (en) | 2011-01-13 | 2011-01-13 | Ultrasonic impact drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100068922A CN102120269A (en) | 2011-01-13 | 2011-01-13 | Ultrasonic impact drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102120269A true CN102120269A (en) | 2011-07-13 |
Family
ID=44248986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100068922A Pending CN102120269A (en) | 2011-01-13 | 2011-01-13 | Ultrasonic impact drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102120269A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103982131A (en) * | 2014-05-19 | 2014-08-13 | 中国矿业大学 | Supersonic resonance gadder with frequency modulation function and use method of gadder |
| CN107288132A (en) * | 2017-07-17 | 2017-10-24 | 昂徕博智能科技（昆山）有限公司 | A kind of peg apodization based on ultrasonic wave drill bit hinders cleaning plant |
| CN110281089A (en) * | 2019-07-08 | 2019-09-27 | 中铁隧道局集团有限公司 | It is a kind of for cutting the ultrasonic unit of boulder in front of tunnel |
| CN110302876A (en) * | 2019-07-08 | 2019-10-08 | 中铁隧道局集团有限公司 | A kind of equipment using boulder in front of ultrasonic disruption tunnel |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2825186A (en) * | 1956-02-27 | 1958-03-04 | Gulton Ind Inc | Ultrasonic drill |
| GB1094115A (en) * | 1965-04-28 | 1967-12-06 | Osoboe K Buro Proektorivaniyu | Method of and apparatus for ultrasonic boring of hard materials |
| JPH07178699A (en) * | 1993-12-22 | 1995-07-18 | Toshiba Ceramics Co Ltd | Device and method for ultrasonic drilling work |
| CN2468661Y (en) * | 2001-04-02 | 2002-01-02 | 天津大学 | Ultrasonic grinding machine for working holes or slotting on hard or brittle materials |
| CN201020638Y (en) * | 2007-04-10 | 2008-02-13 | 哈尔滨工大奥瑞德光电技术有限公司 | Ultrasonic vibration abrasive machining composite processing tool |
| CN101758426A (en) * | 2010-01-15 | 2010-06-30 | 绍兴文理学院 | Small-bore polishing machine based on ultrasonic vibration |
| CN201543855U (en) * | 2009-10-23 | 2010-08-11 | 陈元平 | High power ultrasonic boring apparatus |
| CN201988750U (en) * | 2011-01-13 | 2011-09-28 | 绍兴文理学院 | Ultrasonic impact drill |
-
2011
- 2011-01-13 CN CN2011100068922A patent/CN102120269A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2825186A (en) * | 1956-02-27 | 1958-03-04 | Gulton Ind Inc | Ultrasonic drill |
| GB1094115A (en) * | 1965-04-28 | 1967-12-06 | Osoboe K Buro Proektorivaniyu | Method of and apparatus for ultrasonic boring of hard materials |
| JPH07178699A (en) * | 1993-12-22 | 1995-07-18 | Toshiba Ceramics Co Ltd | Device and method for ultrasonic drilling work |
| CN2468661Y (en) * | 2001-04-02 | 2002-01-02 | 天津大学 | Ultrasonic grinding machine for working holes or slotting on hard or brittle materials |
| CN201020638Y (en) * | 2007-04-10 | 2008-02-13 | 哈尔滨工大奥瑞德光电技术有限公司 | Ultrasonic vibration abrasive machining composite processing tool |
| CN201543855U (en) * | 2009-10-23 | 2010-08-11 | 陈元平 | High power ultrasonic boring apparatus |
| CN101758426A (en) * | 2010-01-15 | 2010-06-30 | 绍兴文理学院 | Small-bore polishing machine based on ultrasonic vibration |
| CN201988750U (en) * | 2011-01-13 | 2011-09-28 | 绍兴文理学院 | Ultrasonic impact drill |
Non-Patent Citations (1)
| Title |
|---|
| 曹凤国: "《超声加工技术》", 31 January 2005, 化学工业出版社 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103982131A (en) * | 2014-05-19 | 2014-08-13 | 中国矿业大学 | Supersonic resonance gadder with frequency modulation function and use method of gadder |
| CN103982131B (en) * | 2014-05-19 | 2016-05-04 | 中国矿业大学 | A kind of frequency-adjustable ultrasonic resonance rock drill and using method |
| CN107288132A (en) * | 2017-07-17 | 2017-10-24 | 昂徕博智能科技（昆山）有限公司 | A kind of peg apodization based on ultrasonic wave drill bit hinders cleaning plant |
| CN110281089A (en) * | 2019-07-08 | 2019-09-27 | 中铁隧道局集团有限公司 | It is a kind of for cutting the ultrasonic unit of boulder in front of tunnel |
| CN110302876A (en) * | 2019-07-08 | 2019-10-08 | 中铁隧道局集团有限公司 | A kind of equipment using boulder in front of ultrasonic disruption tunnel |
| CN110281089B (en) * | 2019-07-08 | 2020-07-28 | 中铁隧道局集团有限公司 | Ultrasonic device for cutting tunnel front boulder |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102287137B (en) | Self-excitation sympathetic vibration well drilling device and method thereof | |
| CN105375818B (en) | Hyperbolic arm type piezoelectricity-Electromagnetic heating power generator | |
| CN101259465B (en) | Bending mode conversion type ultrasound wave torsional vibration energy converter | |
| CN105960291B (en) | Power converter cells | |
| CN102575498B (en) | Resonance enhanced rotary drilling | |
| CN102120269A (en) | Ultrasonic impact drill | |
| CN206316006U (en) | A kind of complex vibration ultrasonic transformer | |
| CN101526503B (en) | Magnetostrictive transducer used for sound wave nondestructive examination | |
| CN104785429B (en) | Piezoelectric ultrasonic transducer with acoustic feedback function | |
| CN202460959U (en) | Piezoelectric ceramic longitudinal ultrasonic scale preventing/removing device | |
| CN103982131A (en) | Supersonic resonance gadder with frequency modulation function and use method of gadder | |
| Sherrit et al. | Novel horn designs for power ultrasonics | |
| CN101748895A (en) | Concrete vibrator utilizing ultrasonic vibration and method thereof | |
| CN109005268A (en) | Lever haptic feedback devices | |
| CN201988750U (en) | Ultrasonic impact drill | |
| US3475628A (en) | Sonic transducer apparatus | |
| CN102191645A (en) | Ultrasonic dyeing device | |
| CN201627376U (en) | Concrete vibration device using ultrasonic vibration | |
| CN201625897U (en) | Polishing machine | |
| Lin | Study on the parallel electric matching of high power piezoelectric transducers | |
| CN101758426A (en) | Small-bore polishing machine based on ultrasonic vibration | |
| CN106423810B (en) | The variable ultrasonic variable amplitude bar of performance parameter | |
| Zhao et al. | Studies on vibration energy harvesting using a cantilever beam with a modified acoustic black hole cavity | |
| CN209649176U (en) | A kind of mute brill of ultrasonic wave | |
| CN107737709A (en) | Double excitation two dimension coupled longitudinal vibration sandwich piezoelectric ultrasonic transducer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20110713 |