JPH0242994U - - Google Patents
Info
- Publication number
- JPH0242994U JPH0242994U JP12299788U JP12299788U JPH0242994U JP H0242994 U JPH0242994 U JP H0242994U JP 12299788 U JP12299788 U JP 12299788U JP 12299788 U JP12299788 U JP 12299788U JP H0242994 U JPH0242994 U JP H0242994U
- Authority
- JP
- Japan
- Prior art keywords
- rotary drive
- drive body
- engagement
- kelly rod
- strips
- 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
- 238000009412 basement excavation Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 3
- 238000005553 drilling Methods 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Description
第１図は本考案の実施例に係るボーリングマシ
ンの要部斜視図である。第２図は第１図のケリー
ロツドの側面図である。第３図は第２図のＡ―Ａ
断面図である。第４図は第２図のＢ―Ｂ断面図で
ある。第５図は回転駆動体が第２図のＡ―Ａ断面
に位置している時の要部断面図である。第６図は
回転駆動体が第２図のＢ―Ｂ断面に位置している
時の要部断面図である。第７図は本考案の第１実
施例に係るボーリングマシンの全体構成図である
。第８図は同ボーリングマシンの使用状態説明図
である。第９図、第１０図は本考案の他の実施例
に係るボーリングマシンの要部断面図である。第
１１図、第１２図は本考案のさらに他の実施例に
係るボーリングマシンの要部断面図、側面図であ
る。第１３図は従来におけるボーリングマシンの
全体構成図である。
主要な部品の符号の説明、１……マシン本体部
、９……マスト部、１６……ケリーロツド、１６
ａ……掘削具、１７……ロータリーヘツド、２１
，２２……線条係合条、２３，２４……途切れ係
合条、２６，２６，２８，２９……嵌合部。
FIG. 1 is a perspective view of essential parts of a boring machine according to an embodiment of the present invention. FIG. 2 is a side view of the Kelly rod of FIG. 1. Figure 3 is A-A of Figure 2.
FIG. FIG. 4 is a sectional view taken along line BB in FIG. FIG. 5 is a sectional view of the main part when the rotary drive body is located at the AA cross section in FIG. 2. FIG. 6 is a sectional view of a main part when the rotary drive body is located at the BB cross section in FIG. 2. FIG. 7 is an overall configuration diagram of a boring machine according to a first embodiment of the present invention. FIG. 8 is an explanatory diagram of the usage state of the boring machine. 9 and 10 are sectional views of main parts of a boring machine according to another embodiment of the present invention. FIGS. 11 and 12 are a sectional view and a side view of main parts of a boring machine according to still another embodiment of the present invention. FIG. 13 is an overall configuration diagram of a conventional boring machine. Explanation of the symbols of the main parts, 1... Machine body, 9... Mast part, 16... Kelly rod, 16
a...Drilling tool, 17...Rotary head, 21
, 22... Linear engagement strip, 23, 24... Intermittent engagement strip, 26, 26, 28, 29... Fitting portion.
Claims (1)
に昇降自在の回転駆動体を設け、この回転駆動体
に先端に掘削具を取り付けたケリーロツドを設け
、回転駆動体によつてケリーロツドに掘削のため
の回転力を伝達するようにした掘削機械において
、ケリーロツドの外面に複数個の係合条を縦設す
るとともに回転駆動体に各係合条と係合する嵌合
部を形成し、ケリーロツドの係合条のうちの少な
くとも１つを途切れない線条係合条に構成し、線
条係合条以外の係合条を、ケリーロツドの外面と
同一面を構成するロツクポケツトが軸方向に所定
の長さで形成された途切れ係合条に構成し、さら
に、回転駆動体の軸方向の寸法を、ロツクポケツ
トの軸方向の寸法よりも短くし、ロツクポケツト
の間に移動・位置した回転駆動体が掘削回転方向
に回転する時ケリーロツドの途切れ係合条が回転
駆動体の嵌合部からずれるようにしたことを特徴
とする掘削機械。 A mast section is provided in the main body of the machine, and a rotary drive body that can be raised and lowered is attached to this mast section.A kelly rod with a digging tool attached to the tip of the rotary drive body is attached to the mast section. In an excavation machine configured to transmit rotational force, a plurality of engagement strips are provided vertically on the outer surface of the kelly rod, and a fitting portion that engages with each engagement strip is formed on the rotary drive body, and the engagement of the kelly rod is At least one of the strips is configured as an uninterrupted linear engagement strip, and the engagement strips other than the thread engagement strip are arranged so that the lock pocket, which is flush with the outer surface of the kelly rod, has a predetermined length in the axial direction. Furthermore, the axial dimension of the rotary drive body is made shorter than the axial dimension of the lock pocket, so that the rotary drive body moved and located between the lock pockets can move in the excavation rotation direction. An excavating machine characterized in that the intermittent engagement line of the kelly rod is displaced from the fitting part of the rotary drive body when rotating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12299788U JPH0624467Y2 (en) | 1988-09-19 | 1988-09-19 | Excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12299788U JPH0624467Y2 (en) | 1988-09-19 | 1988-09-19 | Excavator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0242994U true JPH0242994U (en) | 1990-03-26 |
| JPH0624467Y2 JPH0624467Y2 (en) | 1994-06-29 |
Family
ID=31371447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12299788U Expired - Lifetime JPH0624467Y2 (en) | 1988-09-19 | 1988-09-19 | Excavator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0624467Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858201A (en) * | 2010-05-06 | 2010-10-13 | 侯庆国 | Sliding active drilling rod of pile work drilling machine |
-
1988
- 1988-09-19 JP JP12299788U patent/JPH0624467Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0624467Y2 (en) | 1994-06-29 |
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