JPS63145988U

JPS63145988U -

Info

Publication number: JPS63145988U
Application number: JP2041688U
Authority: JP
Priority date: 1988-02-18
Filing date: 1988-02-18
Publication date: 1988-09-27
Also published as: JPS64468Y2

Description

[Brief explanation of the drawing]

第１図イはこの考案の回転打撃ボーリング装置
を搭載したボーリング機の正面図、ロは同側面図
、ハは同平面図、第２図はこの考案のドリルヘツ
ドを示す断面図、第３図はこの考案の装置を使用
したエアリフトによるリバース式スライム排出の
説明図、第４図、第５図はこの考案の装置による
ボーリングの結果を示す図表である。１……ドリルヘツド、２……パーカツシヨンシ
リンダ、３……二重管ドリルパイプ用スイベル、
４……マスト、５……推進機構、６……チエーン
、７……ガイドシユー、８……二重管ドリルパイ
プ、１０……油圧モータ、１１……スピンドル、
１１ｂ……スプライン、１２……スプリング、２
３……スラストボールベアリング、１３……クロ
ーラー、１４……ホイスト、１５……コンプレツ
サー、１６……ハイドロリツクパワーユニツト、
１７……ビツト、１８……圧縮空気、１９……掘
削スライム。 Figure 1A is a front view of a boring machine equipped with the rotary impact boring device of this invention, B is a side view of the same, C is a plan view of the same, Figure 2 is a sectional view showing the drill head of this invention, and Figure 3 is a An explanatory diagram of reverse slime discharge by air lift using the device of this invention, and FIGS. 4 and 5 are charts showing the results of boring with the device of this invention. 1... Drill head, 2... Percution cylinder, 3... Double drill pipe swivel,
4...Mast, 5...Propulsion mechanism, 6...Chain, 7...Guide shoe, 8...Double pipe drill pipe, 10...Hydraulic motor, 11...Spindle,
11b...Spline, 12...Spring, 2
3... Thrust ball bearing, 13... Crawler, 14... Hoist, 15... Compressor, 16... Hydraulic power unit,
17...bit, 18...compressed air, 19...excavation slime.

Claims

[Claims for Utility Model Registration] A propulsion mechanism that reduces the weight of a bit and a double-tube drill pipe connected to the bit to an appropriate load, in which the double-tube drill pipe is connected to the lower end,
percution cylinder that strikes the spindle;
a drill head having a motor for rotating the spindle, and a spindle that is slidable in the axial direction by a spline and rotatably supported via a spring; A swivel for a double-pipe drill pipe that supplies compressed air to the gap between the outer pipe and the inner pipe of the drill pipe, which is connected to the spindle of the drill head, consists of an outer pipe and an inner pipe, has a bit attached to the lower end, and is connected to the spindle of the drill head. A reverse rotary percussion boring device characterized by comprising a double pipe drill pipe provided with a nozzle discharging compressed air into the inner pipe at a predetermined location of the inner pipe near the bit.