JP2009197467A - 杭打機 - Google Patents
杭打機 Download PDFInfo
- Publication number
- JP2009197467A JP2009197467A JP2008039775A JP2008039775A JP2009197467A JP 2009197467 A JP2009197467 A JP 2009197467A JP 2008039775 A JP2008039775 A JP 2008039775A JP 2008039775 A JP2008039775 A JP 2008039775A JP 2009197467 A JP2009197467 A JP 2009197467A
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- auger
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- hydraulic motor
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- 239000010720 hydraulic oil Substances 0.000 claims description 27
- 230000003028 elevating effect Effects 0.000 claims description 18
- 239000012530 fluid Substances 0.000 abstract description 6
- 230000001105 regulatory effect Effects 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 26
- 239000010959 steel Substances 0.000 description 26
- 230000001174 ascending effect Effects 0.000 description 24
- 238000010276 construction Methods 0.000 description 7
- 230000007935 neutral effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000630 rising effect Effects 0.000 description 4
- 230000001141 propulsive effect Effects 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
- Earth Drilling (AREA)
Abstract
【解決手段】リーダに上下動可能に設けたオーガ駆動装置を昇降させるためのオーガ昇降用油圧モータ18を駆動する昇降用油圧回路20aと、オーガ昇降用油圧モータを自由回転させてオーガ駆動装置をフリー降下させるためのフリー降下用油圧回路20bとを備えた杭打機において、前記フリー降下用油圧回路を作動させた状態で、前記オーガ駆動装置が上昇したときに前記オーガ昇降用油圧モータから作動油が流出するフリー降下回路49に、オーガ昇降用油圧モータからの作動油の流出を規制するためのチェック弁29を設ける。
【選択図】図1
Description
Claims (3)
- リーダに上下動可能に設けたオーガ駆動装置を昇降させるためのオーガ昇降用油圧モータを駆動する昇降用油圧回路と、前記オーガ昇降用油圧モータを自由回転させてオーガ駆動装置をフリー降下させるためのフリー降下用油圧回路とを備えた杭打機において、前記フリー降下用油圧回路を作動させた状態で、前記オーガ駆動装置が上昇したときに前記オーガ昇降用油圧モータから作動油が流出する油圧回路に、前記オーガ昇降用油圧モータからの作動油の流出を規制するためのチェック弁を設けたことを特徴とする杭打機。
- 前記チェック弁と並列に流量制御弁を設けたことを特徴とする請求項1記載の杭打機。
- 前記フリー降下用油圧回路を作動させる電気回路は、前記オーガ駆動装置でオーガを回転駆動するための回転用油圧回路を作動させるオーガ回転用の電気回路が通電状態にあるときにのみ導通状態になることを特徴とする請求項1又は2記載の杭打機。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008039775A JP5038932B2 (ja) | 2008-02-21 | 2008-02-21 | 杭打機 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008039775A JP5038932B2 (ja) | 2008-02-21 | 2008-02-21 | 杭打機 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009197467A true JP2009197467A (ja) | 2009-09-03 |
JP5038932B2 JP5038932B2 (ja) | 2012-10-03 |
Family
ID=41141268
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2008039775A Active JP5038932B2 (ja) | 2008-02-21 | 2008-02-21 | 杭打機 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP5038932B2 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009197468A (ja) * | 2008-02-21 | 2009-09-03 | Nippon Sharyo Seizo Kaisha Ltd | 杭打機 |
JP2012102493A (ja) * | 2010-11-09 | 2012-05-31 | Nippon Sharyo Seizo Kaisha Ltd | 杭打機 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002295161A (ja) * | 2001-04-03 | 2002-10-09 | Nippon Sharyo Seizo Kaisha Ltd | 杭打機のオーガ昇降装置の油圧回路 |
JP2009197468A (ja) * | 2008-02-21 | 2009-09-03 | Nippon Sharyo Seizo Kaisha Ltd | 杭打機 |
-
2008
- 2008-02-21 JP JP2008039775A patent/JP5038932B2/ja active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002295161A (ja) * | 2001-04-03 | 2002-10-09 | Nippon Sharyo Seizo Kaisha Ltd | 杭打機のオーガ昇降装置の油圧回路 |
JP2009197468A (ja) * | 2008-02-21 | 2009-09-03 | Nippon Sharyo Seizo Kaisha Ltd | 杭打機 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009197468A (ja) * | 2008-02-21 | 2009-09-03 | Nippon Sharyo Seizo Kaisha Ltd | 杭打機 |
JP2012102493A (ja) * | 2010-11-09 | 2012-05-31 | Nippon Sharyo Seizo Kaisha Ltd | 杭打機 |
Also Published As
Publication number | Publication date |
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JP5038932B2 (ja) | 2012-10-03 |
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