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1. 发明专利

JP2021116570A 掘削ビット有权
公开(公告)号：JP2021116570A
公开(公告)日：2021-08-10
申请号：JP2020009816
申请日：2020-01-24
申请人：エポコラム機工株式会社
发明人：本多政孝
IPC分类号： E21B10/46 , E21B10/62 , E21B10/16
摘要：【課題】高密度の砂礫地盤や転石・巨石の混在地盤などの硬質な地盤の掘削をも行うことができる掘削ビットを提供すること。【解決手段】本発明では、回転する掘削体(20)に装着され、回転方向に向けて掘削しながら先方に向けて進行する掘削ビット(23,61〜64)において、掘削面(47)と所定の逃げ角(α)を形成する平面状の逃げ面(48)を進行方向に向けて凸状に形成するとともに、掘削面(47)と直交する面(49)と所定のすくい角(β)を形成する平面状のすくい面(50)を掘削方向に向けて凸状に形成し、凸状の逃げ面(48)の先端と凸状のすくい面(50)の先端との交差部分に形成されるビット先端(60)を円弧面とすることにした。【選択図】図5

2. 发明专利

JP2001159289A EXCAVATION HEAD 失效
公开(公告)号：JP2001159289A
公开(公告)日：2001-06-12
申请号：JP34532799
申请日：1999-12-03
申请人： TOBISHIMA CONSTRUCT CO LTD
发明人： SAEGUSA TOSHIHARU , FUJIWARA MASAHIRO , HAYASHI EIJI
IPC分类号： E21B10/16 , E21B10/44
摘要： PROBLEM TO BE SOLVED: To eliminate the changing process of an excavation head when reaching a hard base rock and a pre-process for preceding drilling with a single shaft in the drilling method of the soft/hard composite ground and reduce the construction period and the cost. SOLUTION: This excavation head 100 is provided with an earth removing scraper 8 excavating the soft ground with an excavation shaft 1 and a plurality of excavation bits 3 fitted to the tip of the excavation shaft 1 and conveying the excavated sediment, roller bits 6 having a plurality of crushing bit rows 4a on the outer periphery of a rotary shaft X2 in the direction crossing the excavation shaft 1 and rotatably excavating the base rock around the rotary shaft X2, and an earth removing blade 2 made of a spiral blade continued to the upper section of the earth removing scraper 8 and conveying the excavated sediment from the earth removing scraper 8. A roller scraper 9 guiding the excavated sediment in the gaps of the crushing bit rows 4a to the earth removing blade 2 is fitted to the tip of the excavation shaft 1 between a plurality of roller bits 6. The excavation bits 3 excavate the ground precedently to the roller bits 6, and the roller bits 6 excavate the base rock precedently after reaching the base rock.

3. 发明专利

JPH0960466A DRILLING ROLLER CUTTER 失效
公开(公告)号：JPH0960466A
公开(公告)日：1997-03-04
申请号：JP24089495
申请日：1995-08-25
申请人： TOSHIBA TUNGALOY CO LTD
发明人： ENDO ATSUSHI
IPC分类号： E21B10/16
摘要： PROBLEM TO BE SOLVED: To prevent tracking caused by a rotating locus by improving the arrangement of drilling tips buried in most of the center region portion except for the small-diameter end portion and the large-diameter end portion of a cutter main body. SOLUTION: Drilling tips 1-71 are buried in fitting holes provided on the outer peripheral face of a truncated conical cutter main body 101 while being partially protruded. A spiral arrangement on the end face view of the small- diameter side is applied to the nearly whole center region portion except for the small-diameter end portion and the large-diameter end portion. The inclination of the spiral is set to about 15 deg. CCW, and an axially undeviated and peripherally uniform-pitch arrangement is applied to the drilling tips buried in the small-diameter end portion and the large-diameter end portion. The Z-axis direction positions where the drilling tips 1-71 are buried are deviated little by little in the arrangement so that the drilled face is uniformly drilled. The calculating program of the fitting holes is not required, and tracking can be prevented like for an irregular random arrangement.

4. 实用新型

JPH0635389U 失效
公开(公告)号：JPH0635389U
公开(公告)日：1994-05-10
申请号：JP7169192
申请日：1992-10-14
IPC分类号： E21B10/16 , E21B10/50

5. 发明专利

JPH0575851B2 失效
公开(公告)号：JPH0575851B2
公开(公告)日：1993-10-21
申请号：JP26794289
申请日：1989-10-13
申请人： BAUAA SUPECHIARU TEIIFUBAU GMB
发明人： ERUIN EMIIRU SHUTETSUTSUAA , PEETAA TESHEMAHYAA
IPC分类号： E21B10/08 , E02D17/13 , E02F3/20 , E02F5/02 , E21B10/14 , E21B10/16 , E21B10/52 , E02F5/08

6. 发明专利

JPH05272285A 失效
公开(公告)号：JPH05272285A
公开(公告)日：1993-10-19
申请号：JP2824493
申请日：1993-02-17
IPC分类号： E21B7/28 , E21B10/16 , E21B10/20 , E21B10/24 , E21B10/26 , E21B10/28 , E21B17/10 , F16B21/12
摘要： PURPOSE: To provide a sturdy hole opener having wear resistance to be suitable for drilling of boulders and rubble stones, to rapidly exchange a worn part, and to be also suitable for drilling of a soft material after drilling. CONSTITUTION: This hole opener is used for drilling a boulder ground layer and provided with a plurality of sets of cutter means 8a, 8b, and 8c arranged on a lateral direction plane common to a vertical axis 1 of a cylindrical carrier body 1 and fixing means 7a, 7b, and 7c for the cutter means. The fixing means is positioned at a specified distance from the lateral plane in an axial direction and on the lateral direction plane based on the vertical shaft 1. Some fixing means 7b and 7c have a range in the direction of radius larger than that of the fixing means of the different cutter means 8a.

7. 实用新型

JPH052712Y2 失效
公开(公告)号：JPH052712Y2
公开(公告)日：1993-01-22
申请号：JP3076286
申请日：1986-03-04
IPC分类号： E21D9/087 , E21B10/16 , E21D9/08

8. 实用新型

JPH0437991Y2 失效
公开(公告)号：JPH0437991Y2
公开(公告)日：1992-09-07
申请号：JP2233285
申请日：1985-02-19
IPC分类号： E21B10/12 , E21B10/16

9. 发明专利

JPH0387493A EXCAVATING BIT 失效
公开(公告)号：JPH0387493A
公开(公告)日：1991-04-12
申请号：JP22523289
申请日：1989-08-31
申请人： MURAZAKI KAZUO
发明人： MURAZAKI KAZUO
IPC分类号： E21B10/16
摘要： PURPOSE:To improve excavating efficiency of hard base rock by inclining the vertical center line seen from the side surface of an excavating claw so that the position of its upper part at the time of excavating rotation precedes the lower part. CONSTITUTION:A claw mounting block 12 is inclined and mounted on a mounting plate 10 in such a manner that the upper part precedes the lower part with respect to the rotating direction X at the time of excavation. Then, a mounting channel 7b is fitted to the block 12, and a mounting claw 7 is removably and attachably fixed by bolts 13. The mounting claw is mounted in such a manner that the excavating point P is in the back of the intersection O of the vertical center line (l) of the mounting plate 10 and an excavated surface 4 with respect to the rotating direction. An excavating claw 7A is similarly mounted on a mounting plate 11. Hence, the excavating claws 7, 7A are bitten into the drilled surface 4 by their elasticity, the repeat of rebound is prevented, and smooth excavation can be conducted.

10. 实用新型

JPH01160093U 失效
公开(公告)号：JPH01160093U
公开(公告)日：1989-11-07
申请号：JP5660388
申请日：1988-04-28
IPC分类号： E21B10/16 , E21D9/08 , E21D9/087

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