JPS619278U - hydraulic striking device - Google Patents
hydraulic striking deviceInfo
- Publication number
- JPS619278U JPS619278U JP9234184U JP9234184U JPS619278U JP S619278 U JPS619278 U JP S619278U JP 9234184 U JP9234184 U JP 9234184U JP 9234184 U JP9234184 U JP 9234184U JP S619278 U JPS619278 U JP S619278U
- Authority
- JP
- Japan
- Prior art keywords
- piston
- hydraulic
- impact
- chamber
- oil
- 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
- Percussive Tools And Related Accessories (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案液圧打撃装置の実施例の上昇行程開始時
の状態を示す説明図、第２図は同打撃行程開始時の状態
を示せ説明図、第３図は同打撃時点の状態を示す説明図
である。
１：打撃ピストン、２：上部油圧室、３：下部油圧室、
４，５：段部、６：中間油室、７：ピストンシリンダー
、８：コントロールバルブ、９：チゼル、１１：高圧油
路、１２：排油路、１３：連通路。Fig. 1 is an explanatory view showing the state of the embodiment of the hydraulic impact device of the present invention at the start of the upward stroke, Fig. 2 is an explanatory view showing the state at the start of the same impact stroke, and Fig. 3 is the state at the time of the same impact. FIG. 1: Impact piston, 2: Upper hydraulic chamber, 3: Lower hydraulic chamber,
4, 5: Stepped portion, 6: Intermediate oil chamber, 7: Piston cylinder, 8: Control valve, 9: Chisel, 11: High pressure oil path, 12: Oil drain path, 13: Communication path.
Claims (1)
成し、該下部油圧室には常時高圧が作用するように、又
上部油圧室にはピストン上昇行程時は排油して低圧に、
打撃行程時は高圧が作用するように油圧を制御して打撃
ピストンを往復動せしめる液圧打撃装置において、打撃
ピストンの途中大径部に上方が下方より大きい外径を有
する二つの段部を設けて、この二つの段部とピストンシ
リンダー内壁との間に形成される中間油室を上部油室の
排油路と接続したことを特徴とする液圧打撃装置。An upper hydraulic chamber and a lower hydraulic chamber are formed in the upper and lower parts of the striking piston, and high pressure always acts on the lower hydraulic chamber, and oil is drained from the upper hydraulic chamber during the piston's upward stroke to reduce the pressure to low pressure.
In a hydraulic impact device that reciprocates the impact piston by controlling hydraulic pressure so that high pressure is applied during the impact stroke, two steps are provided in the large diameter part of the impact piston in the middle of the impact piston, the upper part having a larger outer diameter than the lower part. A hydraulic striking device characterized in that an intermediate oil chamber formed between the two stepped portions and the inner wall of the piston cylinder is connected to an oil drain passage of the upper oil chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9234184U JPS619278U (en) | 1984-06-19 | 1984-06-19 | hydraulic striking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9234184U JPS619278U (en) | 1984-06-19 | 1984-06-19 | hydraulic striking device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS619278U true JPS619278U (en) | 1986-01-20 |
| JPH0451991Y2 JPH0451991Y2 (en) | 1992-12-07 |
Family
ID=30649051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9234184U Granted JPS619278U (en) | 1984-06-19 | 1984-06-19 | hydraulic striking device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS619278U (en) |
-
1984
- 1984-06-19 JP JP9234184U patent/JPS619278U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0451991Y2 (en) | 1992-12-07 |
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