JPH01141834U - - Google Patents
Info
- Publication number
- JPH01141834U JPH01141834U JP3451588U JP3451588U JPH01141834U JP H01141834 U JPH01141834 U JP H01141834U JP 3451588 U JP3451588 U JP 3451588U JP 3451588 U JP3451588 U JP 3451588U JP H01141834 U JPH01141834 U JP H01141834U
- Authority
- JP
- Japan
- Prior art keywords
- control valve
- pipe
- pump
- valve
- valves
- 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
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Description
第１図は本考案による杭打機の油圧回路の一実
施例を示す回路図、第２図は本考案の油圧回路を
適用する杭打機の一例を示す側面図、第３図は該
杭打機の一部を示す拡大図である。
FIG. 1 is a circuit diagram showing an embodiment of the hydraulic circuit of a pile driver according to the present invention, FIG. 2 is a side view showing an example of a pile driver to which the hydraulic circuit of the present invention is applied, and FIG. It is an enlarged view showing a part of the hitting machine.
Claims (1)
の主油圧ポンプの吐出管路を分流弁を介して２つ
の管路に分岐させ、各分岐管路にそれぞれ圧入モ
ータおよびオーガ自走モータのコントロール弁を
設け、該各コントロール弁はノーマル位置におい
て一次側ポンプポートが二次側ポンプポートに連
通する構造を有し、該２つのコントロール弁の二
次側ポンプポートを管路により接続し、該二次側
ポンプ管路を、複数のアクチユエータの各コント
ロール弁が縦続に接続された第１のコントロール
弁組に接続し、第２の主油圧ポンプの吐出管路を
、複数のアクチユエータの各コントロール弁が縦
続に接続された第２のコントロール弁組に接続し
、該第２のコントロール弁組はオーガ回転モータ
のコントロール弁を含み、該オーガ回転モータの
コントロール弁の上流側ポンプ管路から逆止弁を
介して分岐した管路に、前記第１のコントロール
弁組側ポンプ管路から分岐した管路を逆止弁を介
して接続すると共に、該管路を前記オーガ回転モ
ータのコントロール弁の一次側ポンプポートに接
続した杭打機の油圧回路。 The pile driver is equipped with two main hydraulic pumps, and the
The discharge pipe of the main hydraulic pump is branched into two pipes via a diversion valve, and each branch pipe is provided with a control valve for the press-fit motor and the auger self-propelled motor, and each control valve is in the primary position in the normal position. It has a structure in which a side pump port communicates with a secondary pump port, the secondary pump ports of the two control valves are connected by a pipe, and the secondary pump pipe is connected to each control of a plurality of actuators. The valves are connected to a first control valve set in which the valves are connected in cascade, and the discharge line of the second main hydraulic pump is connected to the second control valve set in which each control valve of the plurality of actuators is connected in cascade. The second control valve set includes a control valve for the auger rotation motor, and the first control valve is connected to a conduit branched from a pump conduit upstream of the control valve for the auger rotation motor via a check valve. A hydraulic circuit for a pile driver, in which a pipe branched from a valve assembly side pump pipe is connected via a check valve, and the pipe is connected to a primary pump port of a control valve of the auger rotation motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3451588U JPH0624421Y2 (en) | 1988-03-17 | 1988-03-17 | Pile driver hydraulic circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3451588U JPH0624421Y2 (en) | 1988-03-17 | 1988-03-17 | Pile driver hydraulic circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01141834U true JPH01141834U (en) | 1989-09-28 |
| JPH0624421Y2 JPH0624421Y2 (en) | 1994-06-29 |
Family
ID=31261222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3451588U Expired - Lifetime JPH0624421Y2 (en) | 1988-03-17 | 1988-03-17 | Pile driver hydraulic circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0624421Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014141839A (en) * | 2013-01-24 | 2014-08-07 | Sanwa Kiko Kk | Pile driving machine |
| JP2017020253A (en) * | 2015-07-10 | 2017-01-26 | 株式会社コーワン | Pile press-in/pull-out machine |
-
1988
- 1988-03-17 JP JP3451588U patent/JPH0624421Y2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014141839A (en) * | 2013-01-24 | 2014-08-07 | Sanwa Kiko Kk | Pile driving machine |
| JP2017020253A (en) * | 2015-07-10 | 2017-01-26 | 株式会社コーワン | Pile press-in/pull-out machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0624421Y2 (en) | 1994-06-29 |
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