JPS62125192A - Screw joint of drill rod for impact drilling - Google Patents
Screw joint of drill rod for impact drillingInfo
- Publication number
- JPS62125192A JPS62125192A JP61244294A JP24429486A JPS62125192A JP S62125192 A JPS62125192 A JP S62125192A JP 61244294 A JP61244294 A JP 61244294A JP 24429486 A JP24429486 A JP 24429486A JP S62125192 A JPS62125192 A JP S62125192A
- Authority
- JP
- Japan
- Prior art keywords
- thread
- threaded joint
- screw
- drill rod
- contact
- 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
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/042—Threaded
- E21B17/0426—Threaded with a threaded cylindrical portion, e.g. for percussion rods
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、雄ネジ及びこれと協働する雌ネジを含んで構
成される衝撃穴明は用ドリルロッドのためのネジ継手に
関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a threaded joint for a drill rod for impact drilling, which comprises a male thread and a cooperating female thread.
従来のロックトリルロッドでは、雌ネジのネジ遊隙がク
サビ形のネジ摩耗を生起せしめてネジ継手の締りに反す
る作用を生み、この阻害作用によってネジ継手が傾く結
果をもたらしていた。In conventional lock trill rods, the thread play of the female thread causes wedge-shaped thread wear, which works against the tightening of the threaded joint, and this inhibiting action causes the threaded joint to tilt.
本発明の目的は雌ネジのネジ遊隙が雄ネジを阻害しない
ようにネジの摩耗形状を変えることにある。An object of the present invention is to change the wear shape of the screw so that the screw play of the female screw does not interfere with the male screw.
本発明の他の目的は雄ネジのネジ出口が曲げ力発生の原
因にならず、また継手の締りを妨害しないようにネジ継
手を形成することにある。Another object of the present invention is to form a threaded joint in such a way that the thread exit of the male thread does not cause bending forces and does not interfere with the tightening of the joint.
上記及びその他の目的は特許請求の範囲に記載の諸特徴
を１寸与することによって達成された。These and other objects have been achieved by providing the features defined in the claims.
本発明は添付図面を参照し、以下に説明される。 The invention will be described below with reference to the accompanying drawings.
第１図〜第４図に開示の従来のネジ継手はスリーブ形端
部１０１を有する第１のドリルロッド部１００とボール
形端部１０４を有する第２のドリルロッド部１０３を合
んて構成されている。スリーブ形端部１０１は皿ネジ１
０２を有し、ボール形端部１０４は雄ネジ１０５を有し
ていて、これらが螺結して第１、第２の両ドリルロッド
部１００ 、１０３が連結して一本のドリルロッドを構
成している。The conventional threaded joint disclosed in FIGS. 1-4 comprises a first drill rod section 100 having a sleeve-shaped end 101 and a second drill rod section 103 having a ball-shaped end 104. ing. The sleeve-shaped end 101 has a countersunk screw 1
02, and the ball-shaped end 104 has a male thread 105, which are screwed together to connect the first and second drill rod parts 100 and 103 to form one drill rod. are doing.
第２図に見られる通り、普通使用される口・ンクＩ・リ
ルイ・ジのプロフィルは概して台形状の外観をしており
、ネジの接触は雄ネジの直線接触（コンタクト）肩部１
０６と雌ネジの対応する直接（コンタクト）肩部の間で
のみ出現する。ネジの摩耗形状は、結果として第２図の
陰影を付けた面１０７゜１０８に示すようなものになる
。雌ネジ１０２のネジ出口はクサビ形の摩耗の原因とな
る。これは第２図の陰影面１０９によって表示されてい
る。このクサビ形摩耗は継手の締りに反する作用（阻害
作用）を奏しそして継手を傾むかせ、その結果ドリルロ
ッドが曲がってしまう。As can be seen in Figure 2, the profile of the commonly used mouth/ink I/rilui/ji generally has a trapezoidal appearance, and the screw contact is at the shoulder 1 of the straight contact (contact) of the male screw.
06 and the corresponding direct (contact) shoulder of the female thread. The resulting wear profile of the screw is as shown in the shaded areas 107 and 108 in FIG. The thread exit of the female thread 102 causes wedge-shaped wear. This is indicated by the shaded plane 109 in FIG. This wedge-shaped wear acts against the tightness of the joint and causes it to tilt, resulting in bending of the drill rod.
クサビ形摩耗面１０９は第３図に示している。第４図か
ら分るようにビット１１０がネジ出口に隣接したコンタ
クト肩部に生じる。このピットは周囲方向にその幅が増
大している。A wedge-shaped wear surface 109 is shown in FIG. As can be seen in FIG. 4, a bit 110 occurs at the contact shoulder adjacent the screw exit. This pit increases in width in the circumferential direction.
第１図の継手において、雄ネジ１０５は雌オ・ジ１０２
よりも長く、スリーブ形端部１０１から更に延長してい
る。逆に雌ネジを雄ネジよりも長い延長体にしたならば
ドリルロッドの前記と同様な摩耗形状とドリルロッドの
傾むきが、起きるであろう。In the joint shown in FIG. 1, the male thread 105 is the female thread 102.
and extends further from the sleeve-shaped end 101. If, on the other hand, the female thread were made to be an extension longer than the male thread, the same wear pattern and tilting of the drill rod as described above would occur.
以下金白
［、問題点を解決するための手段と実施例〕第５図〜第
９図には、本発明に係わるネジ継手の好ましい実施例が
開示されている。本発明の継手は、第１図〜第４図に示
す従来例と類似しており、スリーブ形端部１１を有する
第１のドリルロッド部１０とボール形端部１４を有する
第２のドリルロッド部１３を含んで構成されている。ス
リーブ形端部１１は雌ネジ１２を有し、他方ボール形端
部１３は雄ネジ１５を有しており、これらが螺結するこ
とにより、第１、第２の両ドリルロッ）で部１０，１３
が連結し、一本のドリルロッドを構成する。Preferred embodiments of the threaded joint according to the present invention are disclosed in FIGS. 5 to 9 below. The coupling of the present invention is similar to the prior art shown in FIGS. 1-4, with a first drill rod section 10 having a sleeve-shaped end 11 and a second drill rod section having a ball-shaped end 14 It is configured to include a section 13. The sleeve-shaped end 11 has a female thread 12, while the ball-shaped end 13 has a male thread 15, which screw together to form the parts 10, 13
are connected to form one drill rod.
継手を締めたとき、接触はコンタクト肩部即ち加圧肩部
１６と雌ネジ１２の対応するコンタクト肩部に沿って発
生する。好ましい実施例ではコンタクト肩部１６が本質
的に真直である。この肩部１６はドリル軸に対し２５°
〜４０°、好ましくは３５゜傾むいている。When the fitting is tightened, contact occurs along the contact shoulders or pressure shoulders 16 and the corresponding contact shoulders of the internal threads 12. In the preferred embodiment, contact shoulder 16 is essentially straight. This shoulder 16 is 25° to the drill axis.
-40°, preferably 35°.
本発明によれば、両ネジ１２．１５はネジ１２のコンタ
クト肩部１６間の本質的に不変な接触面を雄ネジ１５の
ネジ出口、又は雄ネジ１２のネジ遊隙に隣接維持するよ
うに設計されている。これはネジ遊隙の接触面とネジ出
口が夫々ネジの残部に沿って等しく大きいことを意味し
ている。これは第６図に示す通り、ネジ出口まで本質的
に不変なネジプロフィルを維持することによって達成さ
れる。According to the invention, both threads 12 , 15 are arranged in such a way as to maintain an essentially constant contact surface between the contact shoulders 16 of the threads 12 adjacent to the thread outlet of the male thread 15 or to the thread play of the male thread 12 . Designed. This means that the contact surface of the screw clearance and the screw exit are each equally large along the remainder of the screw. This is accomplished by maintaining an essentially unchanged thread profile up to the thread exit, as shown in FIG.
従前のドリルロッドでは、ネジ出口でネジプロフィルが
連続的に減小している、即ちネジ山の高さと幅が完全な
プロフィルからロッドの無ネジ部に至るネジの推移部で
順次減小している。In conventional drill rods, the thread profile decreases continuously at the thread exit, i.e. the height and width of the thread decreases sequentially in the thread transition from the full profile to the unthreaded part of the rod. There is.
第７図と第８図はネジの完全プロフィルが雄ネジ１５の
ネジ出口まで陰影面１７ 、１８を除去することによっ
て如何に維持され得るかを示している。7 and 8 show how the complete profile of the thread can be maintained by removing the shadow surfaces 17, 18 up to the thread exit of the male thread 15.
第９図には、ネジ山の幅と高さの減小が鎖点線で印され
た除去部分１つによって示されている。In FIG. 9, the reduction in the width and height of the thread is illustrated by one removed section marked with a dash-dot line.
或いはまた、上記と同じ結果が次の場きに得られる。即
ち、雄ネジ１５を完全ネジプロフィルの状態でスリーブ
形ロッド部１１から外まで延長するように設計し、そし
て雌ネジ１２の終端部（この部分はネジ山の幅と高さが
減小している）を除ロッド部１１から完全なプロフィル
で以って外に延長するように設計し、同時に幅と高さが
減小している雌ネジ終端部を除太し７し）３゜また、こ
の実施例では、ネジ１２ 、１５は全巻数（ターン）螺
結したときに継手が係合することになり、従って、それ
によって継手に曲げ力が現わる不都合な事態が起きない
ように設計されている。Alternatively, the same result as above can be obtained when: That is, the male thread 15 is designed to extend outward from the sleeve-shaped rod part 11 with a complete thread profile, and the terminal end of the female thread 12 (this part has a reduced thread width and height). It is designed to extend outward from the removing rod part 11 with a complete profile, and at the same time, the female thread end part whose width and height are reduced is removed by 3°. In this embodiment, the screws 12 and 15 are designed so that the joint will engage when the screws are fully screwed together, so that an undesirable bending force will not be exerted on the joint. ing.
これは、ネジの巻数全部が完全プロフィルになるように
ネジ設計することを意味する。This means designing the screw so that all turns of the screw have a perfect profile.
第１図は従来設計のネジ継手の側面図、第２図は従来の
ロックトリルロッドの摩耗形状を示す側面部分説明図、
第３図は当該摩耗形状を示す第２図における■−■線の
切断面図、第４図は当該摩耗を示す第３図におけるＩＶ
−ＩＶ線の切断面図、第５図は本発明に係わるネジ継手
の側面図、第６図は本発明に係わるドリルロッドにおけ
る雄ネジのネジ出口を示す側面部分説明図、第７図は第
６図に示すネジ出口の形成方法を示す説明図、第８図は
第７図における線■−■の切断面図、第９図は第８図に
おける線ＩＸ −ＩＩに沿って見たネジ出口の側面部分
説明図である。
図において、
１０ 、１００ ニトリルロッド部、
１１ 、１０１ ニスリーブ形ロッド端部、１２ 、１
０２ ：雌ネジ、
１３ 、１０３ ニトリルロッド部、
１４ 、１０４ ：ポール形ロッド端部、１５ 、１０
５ ：雄ネジ、
１６ 、１０６ ：コンタクト肩部、
１０７ 、 ｉｏｓ ：ネジ摩耗部分（陰影面）、１７
、１８ ：ネジ除去部分。
以下余白Fig. 1 is a side view of a conventionally designed threaded joint, Fig. 2 is a partial explanatory side view showing the wear shape of a conventional lock trill rod,
Fig. 3 is a cross-sectional view taken along the line ■-■ in Fig. 2 showing the wear shape, and Fig. 4 is the IV in Fig. 3 showing the wear.
5 is a side view of the threaded joint according to the present invention, FIG. 6 is a side partial explanatory view showing the screw exit of the male screw in the drill rod according to the present invention, and FIG. 7 is a sectional view taken along line -IV. 6 is an explanatory diagram showing the method of forming the screw exit, FIG. 8 is a cross-sectional view taken along line ■-■ in FIG. 7, and FIG. 9 is a screw exit seen along line IX-II in FIG. 8. FIG. In the figure, 10, 100 nitrile rod part, 11, 101 sleeve-shaped rod end part, 12, 1
02: Female thread, 13, 103 Nitrile rod part, 14, 104: Pole-shaped rod end part, 15, 10
5: Male thread, 16, 106: Contact shoulder, 107, ios: Screw wear part (shaded surface), 17
, 18: Screw removal part. Margin below
Claims (1)
含んで構成される衝撃穴明け用ドリルロッドのネジ継手
において、両ネジ（１２、１５）の接触肩部の間に実質
的に不変な接触面を雌ネジ（１２）の遊隙に又は雄ネジ
（１５）の出口に隣接するように両ネジを形成したこと
を特徴とする衝撃穴明け用ドリルロッドのネジ継手。 ２、特許請求の範囲第１項に記載のネジ継手において、
ネジ巻数の全てにおいて螺結されるように両ネジ（１２
、１５）を形成したことを特徴とするネジ継手。 ３、特許請求の範囲第１項及び第２項のいづれか１項に
記載のネジ継手において、雄ネジ（１５）のプロフィル
をその出口まで実質的に不変にしたことを特徴とするネ
ジ継手。 ４、特許請求の範囲第１項乃至第３項のいづれか１項に
記載のネジ継手において、両ネジ（１２、１５）が実質
的に真直な接触肩部（１６）を有することを特徴とする
ネジ継手。 ５、特許請求の範囲第４項に記載のネジ継手において、
接触肩部（１６）をドリル軸に対し２５°〜４０°の角
度傾斜させたことを特徴とするネジ継手。[Claims] 1. In a threaded joint for an impact drilling drill rod that includes a male thread (15) and a female thread (12) cooperating therewith, contact between both threads (12, 15) An impact drilling drill characterized in that both threads are formed such that a substantially constant contact surface between the shoulders is located in the play space of the female thread (12) or adjacent to the exit of the male thread (15). Rod threaded joint. 2. In the threaded joint according to claim 1,
Both screws (12
, 15). 3. A threaded joint according to any one of claims 1 and 2, characterized in that the profile of the male thread (15) remains substantially unchanged up to its exit. 4. Threaded joint according to any one of claims 1 to 3, characterized in that both threads (12, 15) have a substantially straight contact shoulder (16). screw fitting. 5. In the threaded joint according to claim 4,
A threaded joint characterized in that the contact shoulder (16) is inclined at an angle of 25° to 40° with respect to the drill axis.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE8504842-9 | 1985-10-17 | ||
| SE8504842A SE8504842L (en) | 1985-10-17 | 1985-10-17 | DRILLING ROCK FOR BACKGROUND MOUNTING |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62125192A true JPS62125192A (en) | 1987-06-06 |
Family
ID=20361778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61244294A Pending JPS62125192A (en) | 1985-10-17 | 1986-10-16 | Screw joint of drill rod for impact drilling |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP0220147A3 (en) |
| JP (1) | JPS62125192A (en) |
| CN (1) | CN86107149A (en) |
| AU (1) | AU6367286A (en) |
| BR (1) | BR8605070A (en) |
| FI (1) | FI864185A (en) |
| SE (1) | SE8504842L (en) |
| ZA (1) | ZA867682B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016188857A1 (en) * | 2015-05-22 | 2016-12-01 | Sandvik Intellectual Property Ab | Threaded coupling end for a percussion drill string component |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE514137C2 (en) * | 1998-03-24 | 2001-01-08 | Sandvik Ab | Threaded joints for striking drilling, male and female part to be included in a threaded joint for striking drilling as well as method for manufacturing a product with a thread to be included in a threaded joint for striking drilling |
| GB2340148B (en) * | 1998-07-30 | 2002-12-31 | Boart Longyear Ltd | Tube rod |
| PL2845992T3 (en) | 2013-09-09 | 2016-07-29 | Sandvik Intellectual Property | Drill string with bend resistant coupling |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1645802A (en) * | 1925-06-09 | 1927-10-18 | Lewis F Davis | Deep-well pump-plunger attachment |
| US2005498A (en) * | 1933-04-28 | 1935-06-18 | Raymond S Hart | Detachable bit for rock drills |
| US2979993A (en) * | 1956-04-17 | 1961-04-18 | Sandvikens Jernverks Ab | Rock drill bit and method of manufacturing same |
| US3542406A (en) * | 1969-03-26 | 1970-11-24 | Ideal Ind | Connector and method |
| US4397484A (en) * | 1982-04-16 | 1983-08-09 | Mobil Oil Corporation | Locking coupling system |
| SE469602B (en) * | 1985-04-04 | 1993-08-02 | Sandvik Ab | CUTTING HEAD BEFORE SHOCK DRILLING |
-
1985
- 1985-10-17 SE SE8504842A patent/SE8504842L/en not_active Application Discontinuation
-
1986
- 1986-10-08 ZA ZA867682A patent/ZA867682B/en unknown
- 1986-10-08 AU AU63672/86A patent/AU6367286A/en not_active Abandoned
- 1986-10-08 EP EP86850341A patent/EP0220147A3/en not_active Withdrawn
- 1986-10-16 FI FI864185A patent/FI864185A/en not_active Application Discontinuation
- 1986-10-16 BR BR8605070A patent/BR8605070A/en unknown
- 1986-10-16 JP JP61244294A patent/JPS62125192A/en active Pending
- 1986-10-16 CN CN198686107149A patent/CN86107149A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016188857A1 (en) * | 2015-05-22 | 2016-12-01 | Sandvik Intellectual Property Ab | Threaded coupling end for a percussion drill string component |
| US10627023B2 (en) | 2015-05-22 | 2020-04-21 | Sandvik Intellectual Property Ab | Threaded coupling end for a percussion drill string component |
Also Published As
| Publication number | Publication date |
|---|---|
| AU6367286A (en) | 1987-04-30 |
| CN86107149A (en) | 1987-05-20 |
| EP0220147A3 (en) | 1988-11-17 |
| EP0220147A2 (en) | 1987-04-29 |
| FI864185A (en) | 1987-04-18 |
| BR8605070A (en) | 1987-07-21 |
| SE8504842L (en) | 1987-04-18 |
| ZA867682B (en) | 1987-05-27 |
| FI864185A0 (en) | 1986-10-16 |
| SE8504842D0 (en) | 1985-10-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2545628Y2 (en) | Drill members for impact drill strings | |
| US4549754A (en) | Tool joint | |
| US6447025B1 (en) | Oilfield tubular connection | |
| US4676529A (en) | Pipe joint | |
| US4398756A (en) | Cylindro-conical pipe joint | |
| JPS61176791A (en) | Shock drill element | |
| KR101513332B1 (en) | Anti cross-thread bolt | |
| NO20011171L (en) | Thread connection for two metal pipes, with grooves in the threads | |
| ITMI940392A1 (en) | SCREW FOR PRECISION TIGHTENINGS | |
| US3388935A (en) | Threaded drill rod element | |
| US5284075A (en) | Screwing tool, particularly a screwdriver | |
| US2056112A (en) | Pipe joint | |
| JPS62125192A (en) | Screw joint of drill rod for impact drilling | |
| JPS63501167A (en) | Cylindrical screw connection with uniform engagement surface | |
| US3822952A (en) | Drill rod coupling | |
| CA2324214A1 (en) | Thread joint for percussive drilling | |
| JP3760098B2 (en) | Drill connector | |
| JP2553566Y2 (en) | Full thread lock bolt fittings | |
| JP3290362B2 (en) | Tapping screw for soft metal material | |
| JPH024247Y2 (en) | ||
| GB2163194A (en) | Concrete reinforcement bars | |
| JPH0752969Y2 (en) | Tapping screw | |
| GB2161563A (en) | Pin and box couplings | |
| EP0101783A1 (en) | Double lock nut assembly | |
| KR102185997B1 (en) | Taping Screw |