JPS6050282U - turbo drill - Google Patents

turbo drill

Info

Publication number
JPS6050282U
JPS6050282U JP14018083U JP14018083U JPS6050282U JP S6050282 U JPS6050282 U JP S6050282U JP 14018083 U JP14018083 U JP 14018083U JP 14018083 U JP14018083 U JP 14018083U JP S6050282 U JPS6050282 U JP S6050282U
Authority
JP
Japan
Prior art keywords
turbine
valve
bit
drill
valve body
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
Application number
JP14018083U
Other languages
Japanese (ja)
Inventor
布谷 貞夫
Original Assignee
株式会社小松製作所
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 株式会社小松製作所 filed Critical 株式会社小松製作所
Priority to JP14018083U priority Critical patent/JPS6050282U/en
Publication of JPS6050282U publication Critical patent/JPS6050282U/en
Pending legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)

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

【図面の簡単な説明】[Brief explanation of the drawing]

図面はこの考案の一実施例を示し、第1図はターボドリ
ルの全体図、第2図はバイパス弁の拡大断面図、第3図
イはタービン翼の説明図、第3図口は検出用タービン翼
の説明図、第4図は第2図矢印■方向からの矢視図、第
5図はタービンの出力特性図である。 3はタービン、3aはタービン軸、3bは通路、6は回
転軸、7はビット、12はバイパス弁、13は弁体、1
5は検出用タービン翼。
The drawings show one embodiment of this invention; Fig. 1 is an overall view of the turbo drill, Fig. 2 is an enlarged cross-sectional view of the bypass valve, Fig. 3 A is an explanatory diagram of the turbine blade, and Fig. 3 has an opening for detection. An explanatory diagram of a turbine blade, FIG. 4 is a view taken from the direction of arrow 2 in FIG. 2, and FIG. 5 is an output characteristic diagram of the turbine. 3 is a turbine, 3a is a turbine shaft, 3b is a passage, 6 is a rotating shaft, 7 is a bit, 12 is a bypass valve, 13 is a valve body, 1
5 is a detection turbine blade.

Claims (1)

【実用新案登録請求の範囲】 1 マッドにより回転されるタービン3により回転軸6
を介してビット7を駆動し、該ビット7により地中を穿
孔するものにおいて、上記タービン3の入口に、タービ
ン軸3aの回転が予め設定された回転数を越えたときに
開放し、タービン3へ流入するマッドの一部をタービン
軸3a内に設けた通路3bヘバイパスさせるバイパス弁
12を設けてなるターボドリル。 2 上記バイパス弁12をタービン軸3aの軸方向に沿
って移動自在な弁体13と、この弁体13を閉方向に付
勢する手段及びタービン3に流入するマッド中に位置し
、かつタービン軸3aの回転が設定値を越えたときに弁
体13にブレーキトルクを発生させて、弁体13を開放
方向へ作動する検出用タービン翼15とよら構成してな
る実用新案登録請求の範囲第1項記載のターボドリル。
[Claims for Utility Model Registration] 1. Rotating shaft 6 by turbine 3 rotated by mud
In this device, the bit 7 is driven through the bit 7 and the bit 7 is used to drill into the ground. This turbo drill is equipped with a bypass valve 12 that bypasses a part of the mud flowing into the turbine shaft 3a to a passage 3b provided in the turbine shaft 3a. 2. A valve element 13 that allows the bypass valve 12 to move freely along the axial direction of the turbine shaft 3a, a means for biasing the valve element 13 in the closing direction, and a means for biasing the bypass valve 12 in the mud flowing into the turbine 3, Utility model registration claim 1, comprising a detection turbine blade 15 that generates a brake torque on the valve body 13 to operate the valve body 13 in the opening direction when the rotation of the valve body 3a exceeds a set value. Turbo drill as described in section.
JP14018083U 1983-09-12 1983-09-12 turbo drill Pending JPS6050282U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14018083U JPS6050282U (en) 1983-09-12 1983-09-12 turbo drill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14018083U JPS6050282U (en) 1983-09-12 1983-09-12 turbo drill

Publications (1)

Publication Number Publication Date
JPS6050282U true JPS6050282U (en) 1985-04-09

Family

ID=30313951

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14018083U Pending JPS6050282U (en) 1983-09-12 1983-09-12 turbo drill

Country Status (1)

Country Link
JP (1) JPS6050282U (en)

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