JPH01137390U - - Google Patents
Info
- Publication number
- JPH01137390U JPH01137390U JP3156488U JP3156488U JPH01137390U JP H01137390 U JPH01137390 U JP H01137390U JP 3156488 U JP3156488 U JP 3156488U JP 3156488 U JP3156488 U JP 3156488U JP H01137390 U JPH01137390 U JP H01137390U
- Authority
- JP
- Japan
- Prior art keywords
- boom
- lower link
- link member
- base
- kelly bar
- 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.)
- Granted
Links
- 238000005553 drilling Methods 0.000 claims description 9
- 230000008602 contraction Effects 0.000 claims 1
- 238000004804 winding Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Description
第１図は本考案一実施例の穿孔状態における側
面図、第２図はその機能説明図、第３図は移動時
や輸送時における側面図、第４図は従来型穿孔機
の側面図である。
１９…回り継手、２０…鑚孔バケツト、２１…
案内部材、２２…昇降台、２３…油圧シリンダ、
２４…油圧モータ。
Fig. 1 is a side view of an embodiment of the present invention in a drilling state, Fig. 2 is an explanatory diagram of its functions, Fig. 3 is a side view during movement or transportation, and Fig. 4 is a side view of a conventional drilling machine. be. 19... Swivel joint, 20... Drill hole bucket, 21...
Guide member, 22... Lifting platform, 23... Hydraulic cylinder,
24...Hydraulic motor.
Claims (1)
台２を走行装置３上に旋回自在に取付けて、該ブ
ーム先端の滑車４を経由する主巻索５に回転自在
に吊下げたケリーバー６の駆動装置７とブーム基
部との間を、上下のリンク部材８，９で連結した
移動式穿孔機において、ケリーバーを穿孔位置と
ブーム寄りの引込位置との間で揺動させる伸縮シ
リンダ１１を、ブームと上下リンク部材の一方と
の間に取付け、且つ上部リンク部材８を下部リン
ク部材９より短くすると共に、ケリーバー駆動装
置側における上下リンク部材の枢着中心Ａ，Ｂ間
の距離Ｌを、ブーム側における上下リンク部材の
枢着中心Ｃ，Ｄ間の距離Ｍより短くして、前記伸
縮シリンダ１１の伸縮作動中は、常にケリーバー
６の軸線が前記滑車４に略接するように構成した
ことを特徴とする移動式穿孔機。 ２ デリツクシリンダ１０で俯仰される伸縮ブー
ム１の基部ブーム筒１２の基端部に下部リンク部
材９の下端を枢着し、且つ該下部リンク部材の上
部に下端が枢着された伸縮シリンダ１１の上端を
基部ブーム筒１２の先端部に枢着して、該基部ブ
ーム筒に対向する下部リンク部材と伸縮シリンダ
の挟角を鈍角に形成してなる請求項１記載の移動
式穿孔機。 ３ ケリーバーの穿孔位置において、下部リンク
部材９の伸縮シリンダ連結部とクレーン旋回台２
との間に、伸縮シリンダ１１と略一直線上に位置
する連結杆１３を着脱自在に取付けてなる請求項
２記載の鑚孔推力増大装置付の移動式穿孔機。[Claims for Utility Model Registration] 1. A crane swivel platform 2 that supports the boom 1 in a vertically movable manner is rotatably mounted on a traveling device 3, and is rotatably connected to a main winding rope 5 via a pulley 4 at the tip of the boom. In a mobile drilling machine in which a driving device 7 of a suspended Kelly bar 6 and a boom base are connected by upper and lower link members 8 and 9, the Kelly bar is swung between a drilling position and a retracted position closer to the boom. The telescopic cylinder 11 is installed between the boom and one of the upper and lower link members, and the upper link member 8 is made shorter than the lower link member 9, and the center of rotation between the pivot centers A and B of the upper and lower link members on the Kelly bar drive device side is The distance L is made shorter than the distance M between the pivot centers C and D of the upper and lower link members on the boom side, so that the axis of the Kelly bar 6 is always substantially in contact with the pulley 4 during the expansion and contraction operation of the telescopic cylinder 11. A mobile drilling machine characterized by the following configurations. 2. The lower end of the lower link member 9 is pivotally connected to the base end of the base boom tube 12 of the telescopic boom 1 that is raised and raised by the derrick cylinder 10, and the lower end of the lower link member 9 is pivotally connected to the upper part of the lower link member. 2. The mobile drilling machine according to claim 1, wherein the upper end is pivotally connected to the tip of the base boom cylinder 12, and the included angle between the telescopic cylinder and the lower link member facing the base boom cylinder is an obtuse angle. 3 At the drilling position of the Kelly bar, the telescopic cylinder connection part of the lower link member 9 and the crane swivel base 2
3. A mobile drilling machine with a drilling thrust increasing device according to claim 2, further comprising a connecting rod 13 located substantially in a straight line with the telescopic cylinder 11 and detachably attached therebetween.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3156488U JPH0547823Y2 (en) | 1988-03-11 | 1988-03-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3156488U JPH0547823Y2 (en) | 1988-03-11 | 1988-03-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01137390U true JPH01137390U (en) | 1989-09-20 |
| JPH0547823Y2 JPH0547823Y2 (en) | 1993-12-16 |
Family
ID=31257506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3156488U Expired - Lifetime JPH0547823Y2 (en) | 1988-03-11 | 1988-03-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0547823Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0589588U (en) * | 1991-11-18 | 1993-12-07 | 住友建機株式会社 | Mast storage mechanism in construction machinery |
| JPH0646090U (en) * | 1993-10-04 | 1994-06-24 | 日本車輌製造株式会社 | Earth drill |
-
1988
- 1988-03-11 JP JP3156488U patent/JPH0547823Y2/ja not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0589588U (en) * | 1991-11-18 | 1993-12-07 | 住友建機株式会社 | Mast storage mechanism in construction machinery |
| JPH0646090U (en) * | 1993-10-04 | 1994-06-24 | 日本車輌製造株式会社 | Earth drill |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0547823Y2 (en) | 1993-12-16 |
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