JPS6136623Y2 - - Google Patents
Info
- Publication number
- JPS6136623Y2 JPS6136623Y2 JP1981190734U JP19073481U JPS6136623Y2 JP S6136623 Y2 JPS6136623 Y2 JP S6136623Y2 JP 1981190734 U JP1981190734 U JP 1981190734U JP 19073481 U JP19073481 U JP 19073481U JP S6136623 Y2 JPS6136623 Y2 JP S6136623Y2
- Authority
- JP
- Japan
- Prior art keywords
- slip
- drill pipe
- base frame
- hydraulic jack
- semicircular part
- 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.)
- Expired
Links
- 238000005553 drilling Methods 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Description
【考案の詳細な説明】 本考案は竪孔掘削機のスリツプ装置に関する。[Detailed explanation of the idea] The present invention relates to a slip device for a shaft excavator.
一般に竪孔掘削機は第１図に示すように、ベー
スフレームａ上にマストｂを立設し、マストｂに
はロータリ装置ｃを摺動可能に設けている。さら
にロータリ装置ｃはドリルパイプｄ、重錘ｅを介
してカツタヘツドｆに連結し、カツタヘツドｆに
回転力を伝達し、掘削する。ｇはベースフレーム
ａに移動可能に設けたスリツプ装置であり、スリ
ツプ装置ｇにてドリルパイプｄを仮に保持する。 Generally, a shaft excavator has a mast b erected on a base frame a, as shown in FIG. 1, and a rotary device c is slidably provided on the mast b. Further, the rotary device c is connected to a cutter head f via a drill pipe d and a weight e, and transmits rotational force to the cutter head f to perform drilling. g is a slip device movably provided on the base frame a, and the slip device g temporarily holds the drill pipe d.
このスリツプ装置ｇは第２図に示す如く、ドリ
ルパイプｄを保持するスリツプビームｈを通常２
個で対向してベースフレームａに添つて油圧ジヤ
ツキｉにより平行移動可能に設けている。そして
このスリツプビームｈは掘削中心ｏで閉鎖され
て、その中央部に形成される円形切欠部ｊにてド
リルパイプｄのカラーｋを引つ掛け、保持し、第
３図の状態の如くして、ドリルパイプｄの接続、
切り離しを行つている。 As shown in Fig. 2, this slip device g usually has two slip beams h that hold a drill pipe d.
They are disposed facing each other along the base frame a so as to be movable in parallel by a hydraulic jack i. This slip beam h is closed at the drilling center o, and the collar k of the drill pipe d is hooked and held at the circular notch j formed in the center thereof, as shown in Fig. 3. , connection of drill pipe d,
We are doing the separation.
しかしながらこの構造においては、スリツプビ
ームｈが２個必要なため、スリツプビームｈにそ
れぞれ２個取付けられる移動用油圧ジヤツキｉの
交差の問題等が生じていた。 However, in this structure, since two slip beams h are required, there arises a problem such as intersection of two moving hydraulic jacks i attached to each slip beam h.
そこで本考案は前記欠点を除去し、構造簡略化
した竪孔掘削機のスリツプ装置を提供することを
目的としたものである。 SUMMARY OF THE INVENTION An object of the present invention is to eliminate the above-mentioned drawbacks and provide a slip device for a shaft excavator with a simplified structure.
本考案の実施例を以下図面に従つて詳細に説明
する。 Embodiments of the present invention will be described in detail below with reference to the drawings.
第４図は本考案であるスリツプ装置の実施例を
示す平面図、第５図はそのスリツプビームの要部
平面図である。 FIG. 4 is a plan view showing an embodiment of the slip device according to the present invention, and FIG. 5 is a plan view of the main part of the slip beam.
第４，５図において、１はスリツプビーム、２
はベースフレーム、３はスリツプビーム１の両端
部とベースフレーム２の適宜の場所とを連結した
油圧ジヤツキであり、油圧ジヤツキ３の伸縮作動
でスリツプビーム１はベースフレーム２にガイド
され、移動する。スリツプビーム１は半径R1で
ある半円形部１ａと半円形部１ａに連設した直線
部１ｂとからなる切欠部をその中央部に形成して
いる。 In Figures 4 and 5, 1 is a slip beam, 2 is a slip beam,
3 is a base frame, and 3 is a hydraulic jack that connects both ends of the slip beam 1 to an appropriate location on the base frame 2. The slip beam 1 is guided by the base frame 2 and moved by the expansion and contraction operation of the hydraulic jack 3. The slip beam 1 has a notch formed in its center, consisting of a semicircular part 1a having a radius R1 and a straight part 1b connected to the semicircular part 1a.
このように構成されたスリツプ装置に外径2R0
であるドリルパイプ４を仮に保持する作業が生じ
ると、油圧ジヤツキ３を収縮（あるいは伸縮）さ
せスリツプビーム１を掘削中心に接近させ、ドリ
ルパイプ４の外径2R2であるカラー５を直線部１
ｂと半円形部１ａとで引掛け、ドリルパイプ４を
スリツプビーム１で保持する（第６図）。なお切
欠部の半円形部１ａの外径2R1はドリルパイプ４
の外径2R0より大きく、カラー５の外径2R2より
小さく形成されている。またカラー５のスリツプ
ビーム１の引つ掛かり面積は第５図斜線部であ
り、充分ドリルパイプ４の重量をスリツプビーム
１で受けられる。このようにスリツプビーム１を
片側からのみドリルパイプ４に接近させ、ドリル
パイプ４を保持できるので、従来装置に比べて、
構造は簡素化される。 The slip device configured in this way has an outer diameter of 2R 0.
When it is necessary to temporarily hold the drill pipe 4, the hydraulic jack 3 is contracted (or expanded/contracted) to bring the slip beam 1 closer to the drilling center, and the collar 5, which has an outer diameter of 2R2 , is moved to the straight part 1.
b and the semicircular part 1a, and the drill pipe 4 is held by the slip beam 1 (Fig. 6). The outer diameter 2R 1 of the semicircular part 1a of the notch is the drill pipe 4.
The outer diameter of the collar 5 is larger than the outer diameter 2R 0 and smaller than the outer diameter 2R 2 of the collar 5. Further, the area where the collar 5 is caught by the slip beam 1 is the shaded area in FIG. 5, and the weight of the drill pipe 4 can be sufficiently supported by the slip beam 1. In this way, the slip beam 1 can approach the drill pipe 4 from only one side and hold the drill pipe 4, so compared to conventional equipment,
The structure is simplified.
要するに本考案によれば、掘削機のベースフレ
ームに油圧ジヤツキにより移動可能に設けたスリ
ツプビームを有し、該ビームにてドリルパイプを
保持する竪孔掘削機のスリツプ装置において、半
円形部と該半円形部に連設した直線部からなる切
欠部を有した単一のスリツプビームをベースフレ
ームに油圧ジヤツキにより移動可能に設けたこと
により、従来２組あつたスリツプビームを１組と
し、片側からのみドリルパイプを挿入できるの
で、装置自体の構成が簡素化され、他方の側の作
業スペースは確保され、且つ装置重量は軽減され
る。 In short, according to the present invention, in the slip device of a shaft drilling machine, which has a slip beam movably provided on the base frame of the drilling machine by a hydraulic jack, and which holds a drill pipe by the beam, a semicircular part and a slip beam are provided. By installing a single slip beam with a notch consisting of a straight line part connected to a semicircular part on the base frame so that it can be moved by a hydraulic jack, the conventional two sets of slip beams can be reduced to one set, and can be moved from one side. Since only the drill pipe can be inserted, the configuration of the device itself is simplified, the work space on the other side is secured, and the weight of the device is reduced.
第１図は竪孔掘削機の側面図、第２図は従来の
スリツプ装置の平面図、第３図はそのドリルパイ
プ引つ掛け状態を示す説明図、第４図は本考案で
ある竪孔掘削機のスリツプ装置の実施例を示す平
面図、第５図はそのスリツプビームの要部平面
図、第６図は本装置によるドリルパイプ保持状態
を示す説明図である。
１……スリツプビーム、２……ベースフレー
ム、３……油圧ジヤツキ、４……ドリルパイプ、
５……カラー、１ａ……半円形部、１ｂ……直線
部。
Fig. 1 is a side view of a shaft drilling machine, Fig. 2 is a plan view of a conventional slip device, Fig. 3 is an explanatory diagram showing the state in which the drill pipe is hooked, and Fig. 4 is a shaft drilling machine according to the present invention. FIG. 5 is a plan view showing an embodiment of a slip device for an excavator, FIG. 5 is a plan view of a main part of the slip beam, and FIG. 6 is an explanatory diagram showing a state in which the drill pipe is held by the device. 1...Slip beam, 2...Base frame, 3...Hydraulic jack, 4...Drill pipe,
5...Color, 1a...Semicircular part, 1b...Straight line part.
Claims (1)
移動可能に設けたスリツプビームを有し、該ビー
ムにてドリルパイプを保持する竪孔掘削機のスリ
ツプ装置において、半円形部と該半円形部に連設
した直線部からなる切欠部を有した単一のスリツ
プビームをベースフレームに油圧ジヤツキにより
移動可能に設けたことを特徴とする竪孔掘削機の
スリツプ装置。 In a slip device for a vertical hole drilling machine, which has a slip beam movable by a hydraulic jack on the base frame of the drilling machine, and which holds a drill pipe with the beam, the slip beam is connected to a semicircular part and the semicircular part. 1. A slip device for a shaft excavator, characterized in that a single slip beam having a cutout section consisting of a straight section is provided on a base frame so as to be movable by a hydraulic jack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19073481U JPS5894787U (en) | 1981-12-21 | 1981-12-21 | Slip device of shaft drilling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19073481U JPS5894787U (en) | 1981-12-21 | 1981-12-21 | Slip device of shaft drilling machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5894787U JPS5894787U (en) | 1983-06-27 |
| JPS6136623Y2 true JPS6136623Y2 (en) | 1986-10-23 |
Family
ID=30104248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19073481U Granted JPS5894787U (en) | 1981-12-21 | 1981-12-21 | Slip device of shaft drilling machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5894787U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001342789A (en) * | 2000-05-31 | 2001-12-14 | Mitani Sekisan Co Ltd | Accident prevention method and excavation rod during pile bore drilling |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5581995A (en) * | 1978-12-15 | 1980-06-20 | Hitachi Construction Machinery | Fulllcasing type reverse circulation drill method and apparatus |
-
1981
- 1981-12-21 JP JP19073481U patent/JPS5894787U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5581995A (en) * | 1978-12-15 | 1980-06-20 | Hitachi Construction Machinery | Fulllcasing type reverse circulation drill method and apparatus |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001342789A (en) * | 2000-05-31 | 2001-12-14 | Mitani Sekisan Co Ltd | Accident prevention method and excavation rod during pile bore drilling |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5894787U (en) | 1983-06-27 |
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