JPS63176138U - - Google Patents
Info
- Publication number
- JPS63176138U JPS63176138U JP6754687U JP6754687U JPS63176138U JP S63176138 U JPS63176138 U JP S63176138U JP 6754687 U JP6754687 U JP 6754687U JP 6754687 U JP6754687 U JP 6754687U JP S63176138 U JPS63176138 U JP S63176138U
- Authority
- JP
- Japan
- Prior art keywords
- opening
- cylinder
- chuck
- closing
- closing cylinder
- 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
- 210000000078 claw Anatomy 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Load-Engaging Elements For Cranes (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Description
第１図〜第４図は本考案の一実施例を示し、第
１図〜第３図はそれぞれチヤツク力保持時、チヤ
ツク開時、チヤツク閉時におけるチヤツク用油圧
回路図、第４図はチヤツク用油圧回路の時間に対
する圧力変化を示す図である。第５図はチヤツク
装置の正面図である。第６図、第７図はそれぞれ
第１図、第４図に相当する従来例を示す図である
。
１：チヤツク本体、３，１１：チヤツク爪、５
：開閉用シリンダ、１０：チヤツクブロツク、２
１，３２：油圧ポンプ、２２：電磁式方向切換弁
、２３，２４：パイロツト操作チエツク弁、２５
：アキユムレータ、２６，３３：リリーフ弁、３
１：増圧シリンダ、３１ｂ：低圧室、３１ｃ：高
圧室。
Figures 1 to 4 show an embodiment of the present invention. Figures 1 to 3 are hydraulic circuit diagrams for the chuck when the chuck force is maintained, the chuck is open, and the chuck is closed, respectively. Figure 4 is the hydraulic circuit diagram for the chuck when the chuck is closed. It is a figure showing the pressure change with respect to time of the oil pressure circuit. FIG. 5 is a front view of the chuck device. FIGS. 6 and 7 are diagrams showing conventional examples corresponding to FIGS. 1 and 4, respectively. 1: Chuck body, 3, 11: Chuck claw, 5
: Opening/closing cylinder, 10: Chuck block, 2
1, 32: Hydraulic pump, 22: Electromagnetic directional valve, 23, 24: Pilot operation check valve, 25
: Accumulator, 26, 33: Relief valve, 3
1: Pressure increase cylinder, 31b: Low pressure chamber, 31c: High pressure chamber.
Claims (1)
ク爪を開閉する開閉用シリンダと、この開閉用シ
リンダに供給される油圧の方向を切換える方向切
換手段とを備え、前記被把持物を把持するときに
前記方向切換手段で開閉用シリンダをブロツクす
るようにしたバイブロハンマのチヤツク装置にお
いて、 前記開閉用シリンダブロツク時に高圧側となる
開閉用シリンダのシリンダ室に高圧室が接続され
た増圧シリンダと、 この増圧シリンダの低圧室に接続され、低圧室
を所定圧に保持する油圧源とを具備することを特
徴とするバイブロハンマのチヤツク装置。[Claims for Utility Model Registration] The invention comprises a chuck claw for grasping an object to be grasped, an opening/closing cylinder for opening and closing the chuck claw, and a direction switching means for switching the direction of hydraulic pressure supplied to the opening/closing cylinder; In a vibrohammer chuck device in which the opening/closing cylinder is blocked by the direction switching means when gripping an object, a high pressure chamber is connected to a cylinder chamber of the opening/closing cylinder which becomes a high pressure side when the opening/closing cylinder is blocked. A chuck device for a vibro hammer, comprising: a pressure increasing cylinder; and a hydraulic power source connected to a low pressure chamber of the pressure increasing cylinder to maintain the low pressure chamber at a predetermined pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987067546U JPH0624424Y2 (en) | 1987-05-06 | 1987-05-06 | Vibro hammer chuck device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987067546U JPH0624424Y2 (en) | 1987-05-06 | 1987-05-06 | Vibro hammer chuck device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63176138U true JPS63176138U (en) | 1988-11-15 |
| JPH0624424Y2 JPH0624424Y2 (en) | 1994-06-29 |
Family
ID=30906553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987067546U Expired - Lifetime JPH0624424Y2 (en) | 1987-05-06 | 1987-05-06 | Vibro hammer chuck device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0624424Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58172545U (en) * | 1982-05-14 | 1983-11-18 | 日本車輌製造株式会社 | Pile gripping device |
-
1987
- 1987-05-06 JP JP1987067546U patent/JPH0624424Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58172545U (en) * | 1982-05-14 | 1983-11-18 | 日本車輌製造株式会社 | Pile gripping device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0624424Y2 (en) | 1994-06-29 |
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