JP2000110473A - Impact drilling device - Google Patents
Impact drilling deviceInfo
- Publication number
- JP2000110473A JP2000110473A JP10284451A JP28445198A JP2000110473A JP 2000110473 A JP2000110473 A JP 2000110473A JP 10284451 A JP10284451 A JP 10284451A JP 28445198 A JP28445198 A JP 28445198A JP 2000110473 A JP2000110473 A JP 2000110473A
- Authority
- JP
- Japan
- Prior art keywords
- magnetostrictive material
- impact
- giant magnetostrictive
- drilling device
- anvil
- 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.)
- Granted
Links
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- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Earth Drilling (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、超磁歪材による衝
撃作用を利用した衝撃さく孔装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an impact drilling apparatus utilizing an impact action of a giant magnetostrictive material.
【０００２】[0002]
【従来の技術】岩石等のさく孔対象物にさく孔を行うさ
く孔装置には、油圧や空圧により作動する打撃ピストン
でロッド等の衝撃伝達具に衝撃波を発生させる油圧式や
空圧式のさく孔装置があった。近年、このような油圧式
や空圧式のさく孔装置に代わるものとして、超磁歪材に
磁場の変化を与えたときの高速歪によって衝撃伝達具に
衝撃波を発生させる衝撃さく孔装置が提案されている。2. Description of the Related Art A drilling device for drilling an object to be drilled, such as rock, is a hydraulic or pneumatic type that generates a shock wave on a shock transmission device such as a rod with a striking piston operated by hydraulic pressure or pneumatic pressure. There was a drilling device. In recent years, as an alternative to such a hydraulic or pneumatic drilling device, an impact drilling device that generates a shock wave in a shock transmission tool by high-speed strain when a magnetic field is applied to a giant magnetostrictive material has been proposed. I have.
【０００３】図５に示すように、従来の超磁歪材１を用
いた衝撃さく孔装置１５は、ケーシング５内のコイル室
８に設けた励磁コイル４の中央に超磁歪材１が配置さ
れ、この超磁歪材１の前端に密接するように衝撃伝達具
としてロッド２が配置され、超磁歪材１の後端に密接し
て反力受板３が設けられている。励磁コイル４はパルス
電圧を印加する電源装置６と接続されている。ロッド２
の先端には、ビット１３が取付けられている。また、こ
の衝撃さく孔装置１５は、回転装置１１とフラッシング
装置１２と推力装置（図示略）とを備えており、ロッド
２には、回転装置１１で回転が与えられ、フラッシング
装置１２からは繰粉排出用の流体が供給されるようにな
っている。さらに、推力装置の推力を検出して電源装置
６の出力を開閉制御する空打ち防止装置（図示略）が設
けられている。As shown in FIG. 5, in a conventional impact drilling device 15 using giant magnetostrictive material 1, giant magnetostrictive material 1 is arranged at the center of exciting coil 4 provided in coil chamber 8 in casing 5. A rod 2 is disposed as an impact transmitting tool so as to be in close contact with the front end of the giant magnetostrictive material 1, and a reaction force receiving plate 3 is provided in close contact with the rear end of the giant magnetostrictive material 1. The excitation coil 4 is connected to a power supply 6 for applying a pulse voltage. Rod 2
A bit 13 is attached to the tip of the. The impact drilling device 15 includes a rotating device 11, a flushing device 12, and a thrust device (not shown). The rod 2 is rotated by the rotating device 11, and is repeatedly moved from the flushing device 12. A fluid for discharging powder is supplied. Further, there is provided an idle hit prevention device (not shown) that detects the thrust of the thrust device and controls opening and closing of the output of the power supply device 6.
【０００４】さく孔作業時には、衝撃さく孔装置１５は
推力装置によって前方への推力が与えられてビット１３
の先端がさく孔の対象物７に押しつけられ、励磁コイル
４には電源装置６からパルス電圧が印加される。At the time of drilling work, the impact drilling device 15 receives a thrust forward by a thrust device, and
Is pressed against an object 7 to be drilled, and a pulse voltage is applied to the exciting coil 4 from a power supply 6.
【０００５】励磁コイル４にパルス電圧が印加される
と、励磁コイル４に流れる励磁電流によって超磁歪材１
に磁場の変化が与えられて磁歪が発生し、超磁歪材１の
前端に密接したロッド２、ビット１３を通じて対象物７
に衝撃波が伝達され、対象物７が破壊される。ロッド２
には回転装置１１で回転が与えられて孔尻全体に破壊が
進行し、フラッシング装置１２からは繰粉排出用の流体
が供給されて繰粉を排出するのでさく孔が行われる。When a pulse voltage is applied to the exciting coil 4, the giant magnetostrictive material 1
A magnetic field is applied to the magnetic field to generate magnetostriction, and the rod 7 and the bit 13 close to the front end of the giant magnetostrictive material 1
The shock wave is transmitted to the object 7 and the object 7 is destroyed. Rod 2
Is rotated by the rotating device 11 so that the entire bottom of the hole is broken, and the fluid for discharging the dust is supplied from the flushing device 12 to discharge the dust, so that the drilling is performed.
【０００６】[0006]
【発明が解決しようとする課題】衝撃さく孔装置１５を
トンネルや鉱山等の坑内で使用する場合には、労働衛生
上の見地から繰粉排出用の流体には水が用いられる。ま
た、坑内では自然の湧水も多く大量の水が衝撃さく孔装
置１５に降り注ぐこともある。超磁歪材１は、鉄系の合
金で非常に錆びやすく、このような環境で使用するに
は、防湿、防錆対策が不可避である。When the impact drilling device 15 is used in a mine such as a tunnel or a mine, water is used as a fluid for discharging dust from the viewpoint of occupational health. Also, there are many natural springs in the pit, and a large amount of water may fall down to the impact drilling device 15. The giant magnetostrictive material 1 is an iron-based alloy, which is very rusty. Therefore, when used in such an environment, it is inevitable to take measures against moisture and rust.
【０００７】しかし、従来の超磁歪材を用いた衝撃さく
孔装置１５の構造では、防水性が悪く、坑外や露天など
の乾燥した雰囲気ではさほど支障ないものの、湿潤な坑
内で使用するには、防水性が不足し、超磁歪材１が錆び
やすいという問題がある。However, the structure of the impact drilling device 15 using the conventional giant magnetostrictive material has poor waterproofness, and does not hinder much in a dry atmosphere such as outside or in the open air. However, there is a problem that the waterproof property is insufficient and the giant magnetostrictive material 1 is easily rusted.
【０００８】また、従来の衝撃さく孔装置１５は、超磁
歪材１の前端とロッド２を十分に密接させるのが難し
い。さらに、超磁歪材１は端面の縁が欠損し易く、励磁
コイルは発熱するのでコイル室が高温となる。Further, in the conventional impact drilling device 15, it is difficult to sufficiently bring the rod 2 into close contact with the front end of the giant magnetostrictive material 1. Further, the edge of the end face of the giant magnetostrictive material 1 is easily damaged, and the exciting coil generates heat, so that the temperature of the coil chamber becomes high.
【０００９】本発明は、超磁歪材による衝撃作用を利用
した衝撃さく孔装置におけるかかる問題を解決するもの
であって、防水性が良く、湿潤な坑内で使用するのに好
適な超磁歪材を用いた衝撃さく孔装置を提供することを
目的とする。The present invention solves such a problem in an impact drilling apparatus utilizing the impact action of a giant magnetostrictive material. The present invention provides a giant magnetostrictive material having good waterproofness and suitable for use in a wet pit. An object of the present invention is to provide an impact drilling device used.
【００１０】また、超磁歪材の前端と衝撃伝達具の後端
とを十分密接させることができ、超磁歪材の縁の欠損を
防止し、コイル室の冷却効果を向上できる衝撃さく孔装
置を提供することを目的とする。Further, there is provided an impact drilling device capable of sufficiently bringing the front end of the giant magnetostrictive material and the rear end of the shock transmitting device into close contact, preventing the edge of the giant magnetostrictive material from being lost, and improving the cooling effect of the coil chamber. The purpose is to provide.
【００１１】[0011]
【課題を解決するための手段】本発明では、パルス電圧
が印加される励磁コイルをケーシング内のコイル室に設
け、励磁コイルの中央に超磁歪材を配置し、この超磁歪
材の前端に密接して衝撃伝達具を設け、超磁歪材の後端
に密接して反力受板を設けた衝撃さく孔装置において、
衝撃伝達具の一段目をアンビルとし、アンビルとケーシ
ングとの間にシールを設けて密閉空間を形成し、密閉空
間に油脂を充填することにより防水性を向上させてい
る。According to the present invention, an exciting coil to which a pulse voltage is applied is provided in a coil chamber in a casing, a giant magnetostrictive material is arranged at the center of the exciting coil, and closely contacted with a front end of the giant magnetostrictive material. In the impact drilling device provided with a shock transmission device, and provided with a reaction force receiving plate in close contact with the rear end of the giant magnetostrictive material,
The first stage of the shock transmitting device is an anvil, a seal is provided between the anvil and the casing to form a sealed space, and the sealed space is filled with oil to improve waterproofness.
【００１２】また、アンビルを前方が小径となる段付き
形状とし、段付き部を常時後方に加圧する弾性体ブッシ
ュを設けることにより、超磁歪材の前端と衝撃伝達具の
後端とを十分に密接させることができるようにする。The anvil has a stepped shape with a small diameter at the front, and an elastic bushing for constantly pressing the stepped portion rearward is provided, so that the front end of the giant magnetostrictive material and the rear end of the shock transmitting device can be sufficiently provided. Be able to get close.
【００１３】段付き部を常時後方に加圧するため、弾性
体ブッシュに代えて加圧油室を設け、衝撃さく孔装置の
回転装置に圧油を供給する高圧管路から加圧油室へ給油
管路を接続することによっても、超磁歪材の前端と衝撃
伝達具の後端とを十分に密接させることが可能となる。In order to constantly press the stepped portion backward, a pressurized oil chamber is provided instead of the elastic bush, and oil is supplied from the high-pressure pipe for supplying pressurized oil to the rotating device of the impact drilling device to the pressurized oil chamber. By connecting the conduit, the front end of the giant magnetostrictive material and the rear end of the impact transmitting device can be brought into sufficiently close contact.
【００１４】アンビルの後面に超磁歪材の前端が組立て
られた状態で抜け出さない深さで嵌合する凹部を設ける
と、超磁歪材の縁の欠損が防止できる。If a recess is provided on the rear surface of the anvil to fit the front end of the giant magnetostrictive material in a state where the front end is assembled, the edge of the giant magnetostrictive material can be prevented from being lost.
【００１５】コイル室内に絶縁油を充填し、ケーシング
の外周に放熱構造物を設けると、コイル室内の励磁コイ
ルと超磁歪材を効果的に冷却できる。If the coil chamber is filled with insulating oil and a heat radiation structure is provided on the outer periphery of the casing, the exciting coil and the giant magnetostrictive material in the coil chamber can be effectively cooled.
【００１６】コイル室内に衝撃さく孔装置の回転装置の
低圧管路から排出された作動油を供給し、コイル室を衝
撃さく孔装置の戻り管路と連通させると、冷却効果を向
上できるThe cooling effect can be improved by supplying the hydraulic oil discharged from the low-pressure line of the rotating device of the impact drilling device into the coil chamber and communicating the coil chamber with the return pipeline of the impact drilling device.
【００１７】[0017]
【発明の実施の形態】図１は本発明の実施の一形態であ
る衝撃さく孔装置の構成図、図２は凹部を設けたアンビ
ルの形状の説明図、図３は衝撃さく孔装置の冷却用のフ
ィンの説明図、図４は本発明の他の実施の形態である衝
撃さく孔装置の構成図である。FIG. 1 is a structural view of an impact drilling apparatus according to an embodiment of the present invention, FIG. 2 is an explanatory view of a shape of an anvil provided with a concave portion, and FIG. 3 is cooling of the impact drilling apparatus. FIG. 4 is a view showing a configuration of an impact drilling device according to another embodiment of the present invention.
【００１８】図１に示す衝撃さく孔装置１０は、ケーシ
ング５内のコイル室８に設けた励磁コイル４の中央に超
磁歪材１が配置され、この超磁歪材１の前端に密接して
衝撃伝達具の一段目としてアンビル２１、その前方に衝
撃伝達具の二段目としてシャンクロッド２２が配置さ
れ、超磁歪材１の後端に密接して反力受板３が設けられ
ている。励磁コイル４はパルス電圧を印加する電源装置
６と接続されている。シャンクロッド２２の先端には、
ビット付きのロッドが連結される。この衝撃さく孔装置
１０は、回転装置１１とフラッシング装置１２と推力装
置（図示略）とを備えており、シャンクロッド２２に
は、回転装置１１で回転が与えられ、フラッシング装置
１２からは繰粉排出用の流体が供給されるようになって
いる。さらに、推力装置の推力を検出して電源装置６の
出力を開閉制御する空打ち防止装置（図示略）が設けら
れている。In the impact drilling apparatus 10 shown in FIG. 1, a giant magnetostrictive material 1 is disposed at the center of an exciting coil 4 provided in a coil chamber 8 in a casing 5, and a shock is applied closely to the front end of the giant magnetostrictive material 1. An anvil 21 is arranged as a first stage of the transmitting device, and a shank rod 22 is arranged in front of the anvil 21 as a second stage of the impact transmitting device, and a reaction force receiving plate 3 is provided in close contact with the rear end of the giant magnetostrictive material 1. The excitation coil 4 is connected to a power supply 6 for applying a pulse voltage. At the tip of the shank rod 22,
A rod with a bit is connected. The impact drilling device 10 includes a rotating device 11, a flashing device 12, and a thrust device (not shown). The shank rod 22 is rotated by the rotating device 11, and A fluid for discharge is supplied. Further, there is provided an idle hit prevention device (not shown) that detects the thrust of the thrust device and controls opening and closing of the output of the power supply device 6.
【００１９】さく孔作業時には、衝撃さく孔装置１０は
推力装置によって前方への推力が与えられてビットの先
端がさく孔の対象物に押しつけられ、励磁コイル４には
電源装置６からパルス電圧が印加される。In drilling work, the impact drilling device 10 is given a forward thrust by the thrust device, and the tip of the bit is pressed against the object of the drilling. The excitation coil 4 receives a pulse voltage from the power supply 6. Applied.
【００２０】励磁コイル４にパルス電圧が印加される
と、励磁コイル４に流れる励磁電流によって超磁歪材１
に磁場の変化が与えられて磁歪が発生し、超磁歪材１の
前端に密接したアンビル２１からシャンクロッド２２、
ロッド、ビットを通じて対象物に衝撃波が伝達され、さ
く孔が行われる。When a pulse voltage is applied to the exciting coil 4, the giant magnetostrictive material 1
Is subjected to a change in the magnetic field, magnetostriction is generated, and the shank rod 22, from the anvil 21 close to the front end of the giant magnetostrictive material 1.
Shock waves are transmitted to the object through the rod and bit, and drilling is performed.
【００２１】アンビル２１は、超磁歪材１の衝撃を受け
てこの衝撃をシャンクロッド２２に伝達するものであっ
て、アンビル２１の衝撃による一回の変位量は、普通小
型の衝撃さく孔装置では十分の数ｍｍ、大型の衝撃さく
孔装置でも１〜２ｍｍ程度である。The anvil 21 receives the impact of the giant magnetostrictive material 1 and transmits the impact to the shank rod 22. A single displacement caused by the impact of the anvil 21 is usually small in a small impact drilling device. It is about a few millimeters, and about 1 to 2 mm even for a large impact drilling device.
【００２２】アンビル２１は前方が小径となる段付き形
状となっており、段付き部２６を常時後方に加圧するゴ
ム等の弾性体ブッシュ２７が設けられている。この弾性
体ブッシュ２７によって、アンビル２１は常時超磁歪材
１側へ押されているので、超磁歪材１の前端とアンビル
２１の後端とを十分に密接させることができる。衝撃波
の伝達は、材質のヤング率、比重量の平方根、及び断面
積の比によって按分される。ゴムは鋼材に比し、比重量
が約七〜八分の一、ヤング率は二千〜二万分の一であ
る。従ってさく孔中の衝撃波の通過に際しても弾性体ブ
ッシュ２７には殆どエネルギーは伝達されることはな
く、９９％以上のエネルギーがロッドに伝達されること
になる。The anvil 21 has a stepped shape with a small diameter at the front, and is provided with an elastic bush 27 made of rubber or the like which constantly presses the stepped portion 26 rearward. Since the anvil 21 is constantly pushed toward the giant magnetostrictive material 1 side by the elastic bush 27, the front end of the giant magnetostrictive material 1 and the rear end of the anvil 21 can be sufficiently brought into close contact. The transmission of the shock wave is proportionally divided by the Young's modulus of the material, the square root of the specific weight, and the ratio of the cross-sectional area. Rubber has a specific weight of about one-seventh to one-eighth and a Young's modulus of about 2,000 to 20,000 in comparison with steel. Therefore, almost no energy is transmitted to the elastic bush 27 even when a shock wave passes through the drilling hole, and more than 99% of the energy is transmitted to the rod.
【００２３】衝撃さく孔装置１０は、空打ち防止装置が
設けられているので、空打ちの連続で弾性体ブッシュ２
７を叩くことはなく、弾性体ブッシュ２７の耐久性は十
分に確保できる。Since the impact drilling device 10 is provided with an idle hit prevention device, the elastic bush 2 can be continuously punched.
7, the durability of the elastic bush 27 can be sufficiently ensured.
【００２４】超磁歪材１は、引張り破壊応力が小さいの
で、このように加圧しておくことは超磁歪材１の保護に
有用である。Since the giant magnetostrictive material 1 has a small tensile fracture stress, applying pressure in this way is useful for protecting the giant magnetostrictive material 1.
【００２５】超磁歪材１の縁４１は比較的欠けやすい。
図２に示すように、アンビル２１の後面に超磁歪材１が
殆ど隙間無く嵌合する凹部４２を設け、この凹部４２の
深さＤを衝撃さく孔装置１０の推力が０になったとき自
由に動ける距離Ｌよりやや大きくとれば、超磁歪材１の
前端が組立てられた状態で抜け出さないようになり、超
磁歪材１の縁４１の衝撃による欠損を保護することがで
きる。The edge 41 of the giant magnetostrictive material 1 is relatively easily chipped.
As shown in FIG. 2, a recess 42 is provided on the rear surface of the anvil 21 so that the giant magnetostrictive material 1 can be fitted with almost no gap, and the depth D of the recess 42 is free when the thrust of the hole punching device 10 becomes zero. If the distance L is slightly larger than the distance L that can move, the front end of the giant magnetostrictive material 1 will not come out in the assembled state, and the loss of the edge 41 of the giant magnetostrictive material 1 due to impact can be protected.
【００２６】超磁歪材１を励磁する励磁コイル４は瞬間
的に大電流を流すように高い電圧がかかる。また、超磁
歪材１での渦電流の発生と励磁コイル４の銅損による発
熱がある。そこで、コイル室８内には、超磁歪材１の防
錆と、絶縁と、放熱を兼ねて絶縁油が充填されている。
図３に示すように、ケーシング５の外周に放熱用のフィ
ン４０を設けると、コイル室８内の励磁コイル４と超磁
歪材１の放熱効果を増強することがきる。放熱構造物と
して、フィン４０に代えて放熱パイプを設けてもよい。A high voltage is applied to the exciting coil 4 for exciting the giant magnetostrictive material 1 so that a large current flows instantaneously. Further, there is generation of eddy current in the giant magnetostrictive material 1 and heat generation due to copper loss of the exciting coil 4. Therefore, the coil chamber 8 is filled with an insulating oil for the purpose of preventing rust, insulating, and radiating the giant magnetostrictive material 1.
As shown in FIG. 3, when the fins 40 for heat radiation are provided on the outer periphery of the casing 5, the heat radiation effect of the exciting coil 4 and the giant magnetostrictive material 1 in the coil chamber 8 can be enhanced. As the heat radiation structure, a heat radiation pipe may be provided instead of the fin 40.
【００２７】コイル室８の前後には防水のためシール２
８、２９が設けられている。超磁歪材１は出力を向上す
るためには、励磁コイル４で十分覆われていることが望
ましいので、シール２８はコイル室８の前方のアンビル
２１とケーシング５との間に設けられ、シール２９はコ
イル室８の後方の反力受板３とケーシング５との間に設
けられている。A seal 2 is provided before and after the coil chamber 8 for waterproofing.
8, 29 are provided. Since the giant magnetostrictive material 1 is desirably sufficiently covered with the exciting coil 4 in order to improve the output, the seal 28 is provided between the anvil 21 in front of the coil chamber 8 and the casing 5 and the seal 29 is provided. Is provided between the reaction force receiving plate 3 behind the coil chamber 8 and the casing 5.
【００２８】さらに、シール２８の前方のアンビル２１
とケーシング５との間には複数のシール２３、２４が設
けられてシール２３、２４の間には密閉空間２５が形成
されており、この密閉空間２５には防水性を有し防錆性
の高い潤滑油やグリス等の油脂が充填される。Further, the anvil 21 in front of the seal 28
A plurality of seals 23 and 24 are provided between the casing and the casing 5, and a sealed space 25 is formed between the seals 23 and 24. The sealed space 25 is waterproof and rustproof. Filled with high lubricating oil and grease and other fats and oils.
【００２９】この構成により、衝撃さく孔装置１０の前
方から浸入する水は、弾性体ブッシュ２７、シール２
３、２４間の油脂が充填された密閉空間２５に阻止さ
れ、超磁歪材１に達することはない。With this configuration, water entering from the front of the impact drilling device 10 is prevented from flowing through the elastic bush 27 and the seal 2.
It is blocked by the sealed space 25 filled with the oil and fat between 3 and 24, and does not reach the giant magnetostrictive material 1.
【００３０】通常、衝撃さく孔装置１０には、回転装置
１１及び推力装置の動力として油圧が用いられている。Normally, the impact drilling device 10 uses hydraulic pressure as power for the rotating device 11 and the thrust device.
【００３１】そこで、段付き部２６を常時後方に加圧す
るため、図４に示すように、弾性体ブッシュ２７に代え
て加圧油室３７を設け、衝撃さく孔装置１０の回転装置
１１の油圧モータ３０に油圧ポンプ３１から圧油を供給
する高圧管路３２から加圧油室３７へ給油管路３８を接
続することによっても、超磁歪材１の前端とアンビル２
１の後端とを密接させることができる。既述のごとくア
ンビル２１の衝撃一回当たり変位量は小さいので、加圧
油室３７の容積を十分にとれば、アンビル２１の衝撃に
伴う加圧油室３７の油圧の上昇は、たとえアキュムレー
タを設けなくとも穏やかなものとすることができる。In order to constantly press the stepped portion 26 backward, a pressurized oil chamber 37 is provided instead of the elastic bush 27 as shown in FIG. By connecting an oil supply line 38 from a high-pressure line 32 that supplies pressure oil to a motor 30 from a hydraulic pump 31 to a pressurized oil chamber 37, the front end of the giant magnetostrictive material 1 and the anvil 2
1 can be in close contact with the rear end. As described above, since the displacement of the anvil 21 per impact is small, if the volume of the pressurized oil chamber 37 is sufficient, the increase in the oil pressure of the pressurized oil chamber 37 due to the impact of the anvil 21 will cause the accumulator to rise. It can be calm without providing.
【００３２】また、回転装置１１の油圧モータ３０の低
圧管路３３をコイル室８に接続して、油圧モータ３０か
ら排出される作動油をコイル室８内に絶縁油として供給
し、コイル室８を戻り管路３５と連通させ、この油をオ
イルクーラ３４を介してタンク３６へ戻すようにすると
冷却効果を向上できるFurther, the low-pressure line 33 of the hydraulic motor 30 of the rotating device 11 is connected to the coil chamber 8 so that hydraulic oil discharged from the hydraulic motor 30 is supplied into the coil chamber 8 as insulating oil. Is communicated with the return line 35, and the oil is returned to the tank 36 via the oil cooler 34, whereby the cooling effect can be improved.
【００３３】[0033]
【発明の効果】以上説明したように、本発明の衝撃さく
孔装置は、防水性が良く、湿潤な坑内で使用するのに好
適である。As described above, the impact drilling device of the present invention has good waterproofness and is suitable for use in a moist pit.
【００３４】また、アンビルを前方が小径となる段付き
形状とし、段付き部を常時後方に加圧する弾性体ブッシ
ュを設けることにより、超磁歪材の前端と衝撃伝達具の
後端とを十分に密接させることができるようにする。Further, by providing the anvil with a stepped shape having a small diameter at the front and providing an elastic bushing which constantly presses the stepped portion rearward, the front end of the giant magnetostrictive material and the rear end of the shock transmitting device can be sufficiently provided. Be able to get close.
【００３５】段付き部を常時後方に加圧するため、弾性
体ブッシュに代えて加圧油室を設け、衝撃さく孔装置の
回転装置に圧油を供給する高圧管路から加圧油室へ給油
管路を接続することによっても、超磁歪材の前端と衝撃
伝達具の後端とを十分に密接させることが可能となる。In order to constantly press the stepped portion backward, a pressurized oil chamber is provided instead of the elastic bush, and oil is supplied to the pressurized oil chamber from a high-pressure pipe for supplying pressurized oil to the rotating device of the impact drilling device. By connecting the conduit, the front end of the giant magnetostrictive material and the rear end of the impact transmitting device can be brought into sufficiently close contact.
【００３６】アンビルの後面に超磁歪材の前端が組立て
られた状態で抜け出さない深さで嵌合する凹部を設ける
と、超磁歪材の縁の欠損が防止できる。When the front end of the giant magnetostrictive material is provided with a concave portion on the rear surface of the anvil in such a manner that the front end of the giant magnetostrictive material does not come off in the assembled state, the loss of the edge of the giant magnetostrictive material can be prevented.
【００３７】コイル室内に絶縁油を充填し、ケーシング
の外周に放熱構造物を設けると、コイル室内の励磁コイ
ルと超磁歪材を効果的に冷却できる。If the coil chamber is filled with insulating oil and a heat radiation structure is provided on the outer periphery of the casing, the exciting coil and the giant magnetostrictive material in the coil chamber can be effectively cooled.
【００３８】コイル室内に衝撃さく孔装置の回転装置の
低圧管路から排出された作動油を供給し、コイル室を衝
撃さく孔装置の戻り管路と連通させると、冷却効果を向
上できるBy supplying the hydraulic oil discharged from the low-pressure line of the rotating device of the impact drilling device into the coil chamber and communicating the coil chamber with the return pipeline of the impact drilling device, the cooling effect can be improved.
【図１】本発明の実施の一形態である衝撃さく孔装置の
構成図である。FIG. 1 is a configuration diagram of an impact drilling device according to an embodiment of the present invention.
【図２】凹部を設けたアンビルの形状の説明図である。FIG. 2 is an explanatory diagram of a shape of an anvil provided with a concave portion.
【図３】衝撃さく孔装置の冷却用のフィンの説明図であ
る。FIG. 3 is an explanatory view of a cooling fin of the impact drilling device.
【図４】本発明の他の実施の形態である衝撃さく孔装置
の構成図である。FIG. 4 is a configuration diagram of an impact drilling device according to another embodiment of the present invention.
【図５】従来の衝撃さく孔装置の構成図である。FIG. 5 is a configuration diagram of a conventional impact drilling device.
１ 超磁歪材 ３ 反力受板 ４ 励磁コイル ５ ケーシング ６ 電源装置 ８ コイル室 １０ 衝撃さく孔装置 １１ 回転装置 １２ フラッシング装置 ２１ アンビル ２２ シャンクロッド ２３ シール ２４ シール ２５ 密閉空間 ２６ 段付き部 ２７ 弾性体ブッシュ ２８ シール ２９ シール ３０ 油圧モータ ３１ 油圧ポンプ ３２ 高圧管路 ３３ 低圧管路 ３４ オイルクーラ ３５ 戻り管路 ３６ タンク ３７ 加圧油室 ３８ 給油管路 ４０ フィン ４１ 縁 ４２ 凹部 REFERENCE SIGNS LIST 1 giant magnetostrictive material 3 reaction force receiving plate 4 excitation coil 5 casing 6 power supply device 8 coil chamber 10 impact drilling device 11 rotating device 12 flashing device 21 anvil 22 shank rod 23 seal 24 seal 25 sealed space 26 stepped portion 27 elastic body Bush 28 Seal 29 Seal 30 Hydraulic motor 31 Hydraulic pump 32 High pressure line 33 Low pressure line 34 Oil cooler 35 Return line 36 Tank 37 Pressurized oil chamber 38 Oil supply line 40 Fin 41 Edge 42 Recess
Claims (6)
ーシング内のコイル室に設け、励磁コイルの中央に超磁
歪材を配置し、該超磁歪材の前端に密接して衝撃伝達具
を設け、超磁歪材の後端に密接して反力受板を設けた衝
撃さく孔装置であって、衝撃伝達具の一段目をアンビル
とし、アンビルとケーシングとの間にシールを設けて密
閉空間を形成し、密閉空間に油脂を充填したことを特徴
とする衝撃さく孔装置。An exciting coil to which a pulse voltage is applied is provided in a coil chamber in a casing, a giant magnetostrictive material is disposed at the center of the exciting coil, and a shock transmitting member is provided in close contact with a front end of the giant magnetostrictive material. An impact drilling device with a reaction force receiving plate closely attached to the rear end of the giant magnetostrictive material.The first stage of the impact transmitting device is an anvil, and a seal is provided between the anvil and the casing to form a sealed space. An impact drilling device characterized in that the enclosed space is filled with oil and fat.
とし、段付き部を常時後方に加圧する弾性体ブッシュを
設けたことを特徴とする請求項１記載の衝撃さく孔装
置。2. The impact drilling device according to claim 1, wherein the anvil has a stepped shape having a small diameter at the front, and an elastic bushing for constantly pressing the stepped portion rearward is provided.
とし、段付き部を常時後方に加圧する加圧油室を設け、
衝撃さく孔装置の回転装置に圧油を供給する高圧管路か
ら加圧油室へ給油管路を接続したことを特徴とする請求
項１記載の衝撃さく孔装置。3. The anvil has a stepped shape having a small diameter at the front, and a pressurized oil chamber for constantly pressing the stepped portion rearward is provided.
2. The impact drilling device according to claim 1, wherein an oil supply pipeline is connected from a high pressure pipeline that supplies pressure oil to a rotating device of the impact drilling device to a pressurized oil chamber.
立てられた状態で抜け出さない深さで嵌合する凹部を設
けたことを特徴とする請求項１、請求項２、又は請求項
３記載の衝撃装置。4. A back surface of the anvil is provided with a recess for fitting the front end of the giant magnetostrictive material so that the front end of the giant magnetostrictive material does not come off in the assembled state. The impact device as described.
グの外周に放熱構造物を設けたことを特徴とする請求項
１、請求項２、請求項３、又は請求項４記載の衝撃装
置。5. The impact device according to claim 1, wherein the coil chamber is filled with insulating oil, and a heat radiation structure is provided on the outer periphery of the casing.
の低圧管路から排出された作動油を供給し、コイル室を
衝撃さく孔装置の戻り管路と連通させたことを特徴とす
る請求項１、請求項２、請求項３、又は請求項４記載の
衝撃装置。6. The system according to claim 6, wherein the hydraulic oil discharged from the low pressure line of the rotating device of the impact drilling device is supplied into the coil chamber, and the coil chamber is communicated with the return pipeline of the impact drilling device. 5. The impact device according to claim 1, 2, 3, or 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28445198A JP4107401B2 (en) | 1998-10-06 | 1998-10-06 | Impact drilling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28445198A JP4107401B2 (en) | 1998-10-06 | 1998-10-06 | Impact drilling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000110473A true JP2000110473A (en) | 2000-04-18 |
| JP4107401B2 JP4107401B2 (en) | 2008-06-25 |
Family
ID=17678719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28445198A Expired - Fee Related JP4107401B2 (en) | 1998-10-06 | 1998-10-06 | Impact drilling device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4107401B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100772301B1 (en) | 2006-06-04 | 2007-11-02 | 이정호 | Easy hydaulic drifter system for tunnel |
| CN104089013A (en) * | 2014-07-29 | 2014-10-08 | 中国海洋石油总公司 | While-drilling acoustic wave sealing device |
| JP2017008941A (en) * | 2015-06-24 | 2017-01-12 | グレート プレインズ ディーゼル テクノロジーズ，エル．シー． | Magnetostrictive actuator and modulation of fuel injection rate by hydrodynamic coupler |
-
1998
- 1998-10-06 JP JP28445198A patent/JP4107401B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100772301B1 (en) | 2006-06-04 | 2007-11-02 | 이정호 | Easy hydaulic drifter system for tunnel |
| CN104089013A (en) * | 2014-07-29 | 2014-10-08 | 中国海洋石油总公司 | While-drilling acoustic wave sealing device |
| JP2017008941A (en) * | 2015-06-24 | 2017-01-12 | グレート プレインズ ディーゼル テクノロジーズ，エル．シー． | Magnetostrictive actuator and modulation of fuel injection rate by hydrodynamic coupler |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4107401B2 (en) | 2008-06-25 |
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