JPS59177804U - Hydraulic circuit for breaker - Google Patents
Hydraulic circuit for breakerInfo
- Publication number
- JPS59177804U JPS59177804U JP7243083U JP7243083U JPS59177804U JP S59177804 U JPS59177804 U JP S59177804U JP 7243083 U JP7243083 U JP 7243083U JP 7243083 U JP7243083 U JP 7243083U JP S59177804 U JPS59177804 U JP S59177804U
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- breaker
- hydraulic
- hydraulic circuit
- breaker body
- 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
- Percussive Tools And Related Accessories (AREA)
- Fluid-Pressure Circuits (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図は従来のブレーカとその油圧回路を示す構成図、
第２図は本考案の一実施例を示す構成図である。
１ａ・・・ブレーカ本体、２・・・油圧ポンプ、３・・
・ピストン、６・・・切換弁、７，８・・・受圧部、１
３・・・ガス室、１４・・・チゼル、１７・・・可変リ
リーフ弁。Figure 1 is a configuration diagram showing a conventional breaker and its hydraulic circuit.
FIG. 2 is a block diagram showing an embodiment of the present invention. 1a... Breaker body, 2... Hydraulic pump, 3...
・Piston, 6...Switching valve, 7, 8...Pressure receiving part, 1
3... Gas chamber, 14... Chisel, 17... Variable relief valve.
Claims (1)
撃するピストンが上下動自在に収容され、ブレーカ本体
上部にはピストン上昇゛により蓄圧される蓄圧部を有す
るブレーカにおいて、前記ピストンの上昇工程と打撃工
程とを切換える切換弁の一方の受圧部に油圧源からの油
圧を加え、他方の受圧部に、該切換弁を上昇工程から打
撃工程に切換える作動圧として、前記油圧源から可変リ
リーフ弁を介してリリーフ圧を加えるように構成したブ
レーカ用油圧回路。A breaker body in which a piston for striking a chisel mounted at the lower part of the breaker is housed so as to be able to move up and down, and a breaker body having a pressure accumulating part in the upper part of the breaker body for accumulating pressure as the piston rises. Hydraulic pressure from a hydraulic source is applied to one pressure-receiving part of the switching valve that switches between the two, and the hydraulic pressure from the hydraulic source is applied to the other pressure-receiving part as a working pressure to switch the switching valve from the ascending stroke to the striking stroke. A hydraulic circuit for a breaker configured to apply relief pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7243083U JPS59177804U (en) | 1983-05-17 | 1983-05-17 | Hydraulic circuit for breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7243083U JPS59177804U (en) | 1983-05-17 | 1983-05-17 | Hydraulic circuit for breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59177804U true JPS59177804U (en) | 1984-11-28 |
Family
ID=30202569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7243083U Pending JPS59177804U (en) | 1983-05-17 | 1983-05-17 | Hydraulic circuit for breaker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59177804U (en) |
-
1983
- 1983-05-17 JP JP7243083U patent/JPS59177804U/en active Pending
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