JPS5744022A - Hydraulic lifting, dead weight drop system pile driving device - Google Patents
Hydraulic lifting, dead weight drop system pile driving deviceInfo
- Publication number
- JPS5744022A JPS5744022A JP11780880A JP11780880A JPS5744022A JP S5744022 A JPS5744022 A JP S5744022A JP 11780880 A JP11780880 A JP 11780880A JP 11780880 A JP11780880 A JP 11780880A JP S5744022 A JPS5744022 A JP S5744022A
- Authority
- JP
- Japan
- Prior art keywords
- weight
- hydraulic
- dead weight
- switch valve
- pile
- 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
Landscapes
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
PURPOSE: To enable a hydraulic device to be miniaturized more than a hydraulic forced system and to reduce the generation of noise at an operating time, by a method wherein, after a weight is lifted by a hydraulic means, it is dropped under its own weight, and this causes striking of a pile head, which results in driving-in of the pile.
CONSTITUTION: Through the drive of a hydraulic pump 27 and the operation of a 2-way switch valve 22, pressurized oil is pressed in between a piston 16 and a cylinder 7, and as a result, a weight 6 is raised with the upward movement of the cylinder 7. When the weight 6 reaches an upper limit, an oil feed and discharge pipe 18 is caused to be open to a line 24 with the 2-way switch valve 22 actuated, and as a result, the weight 6 drops with its dead weight to strike an iron bed 12 to press in a pile head 35 engaging said iron bed 12. The rise in pressure of return oil at a time when the weight 6 drops through the dead weight is relieved by means of an oil amount control tank 20. After dead weight dropping of the weight 6 is completed, the 2-way switch valve 22 is changed over, the device is further restored to an initial operation condition, and operations to drive the pile are performed in a repeated manner.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11780880A JPS5744022A (en) | 1980-08-28 | 1980-08-28 | Hydraulic lifting, dead weight drop system pile driving device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11780880A JPS5744022A (en) | 1980-08-28 | 1980-08-28 | Hydraulic lifting, dead weight drop system pile driving device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5744022A true JPS5744022A (en) | 1982-03-12 |
JPS6116812B2 JPS6116812B2 (en) | 1986-05-02 |
Family
ID=14720774
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11780880A Granted JPS5744022A (en) | 1980-08-28 | 1980-08-28 | Hydraulic lifting, dead weight drop system pile driving device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5744022A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5106782A (en) * | 1988-07-15 | 1992-04-21 | Kabushiki Kaisha Toshiba | Method of manufacturing a semiconductor device |
-
1980
- 1980-08-28 JP JP11780880A patent/JPS5744022A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5106782A (en) * | 1988-07-15 | 1992-04-21 | Kabushiki Kaisha Toshiba | Method of manufacturing a semiconductor device |
Also Published As
Publication number | Publication date |
---|---|
JPS6116812B2 (en) | 1986-05-02 |
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