JPS5740025A - Oil-pressure type vibrator - Google Patents
Oil-pressure type vibratorInfo
- Publication number
- JPS5740025A JPS5740025A JP11401380A JP11401380A JPS5740025A JP S5740025 A JPS5740025 A JP S5740025A JP 11401380 A JP11401380 A JP 11401380A JP 11401380 A JP11401380 A JP 11401380A JP S5740025 A JPS5740025 A JP S5740025A
- Authority
- JP
- Japan
- Prior art keywords
- oil
- pressure
- pipeline
- flow rate
- regulating valve
- 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.)
- Pending
Links
Landscapes
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
PURPOSE: To stably and exactly operate an oil-pressure type vibrator even when it is operated at low frequencies by setting up supply pressure of oil to a flow rate regulating valve at more than a pressure to be produced in a return pipeline leading from a vibration switching device to a tank.
CONSTITUTION: The supply pressure of oil in an oscillating pressure-oil supplyer 11 is set up at a pressure higher than that to be produced in a return pipeline 7, and is also led to the supply port side of a flow rate regulating valve 12a through an oscillating pipeline 8. And, since the volume of a pipeline between the flow rate regulating valve 12a and the oil-pressure motor 4 is very small and the apparent compressibility of oil is sufficiently small, in case where pressure produced in the return pipeline 7 rises when the vibration of a vibrator pile driver is low, the pressure of the pipeline between the flow rate regulating valve 12a and oil-pressure motor 4 is correspondingly increased and the amount of oil coming into the oil- pressure motor 4 is kept constant. Thus the rotation of the oil-pressure motor 4 is continued without stoppage.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11401380A JPS5740025A (en) | 1980-08-21 | 1980-08-21 | Oil-pressure type vibrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11401380A JPS5740025A (en) | 1980-08-21 | 1980-08-21 | Oil-pressure type vibrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5740025A true JPS5740025A (en) | 1982-03-05 |
Family
ID=14626860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11401380A Pending JPS5740025A (en) | 1980-08-21 | 1980-08-21 | Oil-pressure type vibrator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5740025A (en) |
-
1980
- 1980-08-21 JP JP11401380A patent/JPS5740025A/en active Pending
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