JPS6175982U - - Google Patents
Info
- Publication number
- JPS6175982U JPS6175982U JP16078284U JP16078284U JPS6175982U JP S6175982 U JPS6175982 U JP S6175982U JP 16078284 U JP16078284 U JP 16078284U JP 16078284 U JP16078284 U JP 16078284U JP S6175982 U JPS6175982 U JP S6175982U
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic oil
- oil supply
- piston
- chamber
- set pressure
- 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
- 239000010720 hydraulic oil Substances 0.000 claims description 9
- 230000002401 inhibitory effect Effects 0.000 claims 1
Landscapes
- Catching Or Destruction (AREA)
- Percussive Tools And Related Accessories (AREA)
Description
図面は本考案の実施例を示すもので、第１図ａ
は油圧ブレーカの要部断面図、第１図ｂは第１図
ａのＡ部の拡大図、第２図乃至第４図はそれぞれ
弾性手段の変形例の断面図である。
１……ピストン、２……シリンダ本体、３……
前室、４……後室、５……第１作動油供給通路、
６……第２作動油供給通路、７……アキユムレー
タ、１１……プラグ、１３……開閉バルブ、２１
……弾性手段、３１……弾性手段、４１……弾性
手段、５１……弾性手段。
The drawings show an embodiment of the present invention, and FIG.
1B is an enlarged view of section A in FIG. 1A, and FIGS. 2 to 4 are sectional views of modified examples of the elastic means. 1... Piston, 2... Cylinder body, 3...
Front chamber, 4... Rear chamber, 5... First hydraulic oil supply passage,
6...Second hydraulic oil supply passage, 7...Accumulator, 11...Plug, 13...Opening/closing valve, 21
... elastic means, 31 ... elastic means, 41 ... elastic means, 51 ... elastic means.
Claims (1)
ンにて前室及び後室が形成され、該前室及び後室
が第１及び第２作動油供給通路を介して作動油供
給源に接続され、前記第１作動油供給通路に、ガ
スが封入される第１室と作動油が流出入する第２
室とにプラダにより区画されたアキユムレータが
介設される一方、前記第２作動油供給通路に、ピ
ストンが所定値だけ後退したときに開く開閉バル
ブが介設され、ピストンが前進位置にある際、前
室に作動油供給源よりの第１設定圧が作用すると
ピストンが後退する油圧ブレーカであつて、作動
油供給源側圧力が第１設定圧よりも高い第２設定
圧になるまでピストンの作動を禁止する弾性手段
を、シリンダ本体内にピストンと当接可能に設け
たことを特徴とする油圧ブレーカ。 A front chamber and a rear chamber are formed by a piston slidably provided within the cylinder body, and the front chamber and the rear chamber are connected to a hydraulic oil supply source via first and second hydraulic oil supply passages, The first hydraulic oil supply passage includes a first chamber filled with gas and a second chamber into which hydraulic oil flows in and out.
An accumulator partitioned by a prada between the chambers is interposed, while an on-off valve is interposed in the second hydraulic oil supply passage, which opens when the piston moves back by a predetermined amount, and when the piston is in the forward position, A hydraulic breaker in which the piston retreats when a first set pressure from a hydraulic oil supply source acts on the front chamber, and the piston operates until the pressure on the hydraulic oil supply source side reaches a second set pressure higher than the first set pressure. 1. A hydraulic breaker characterized in that an elastic means for inhibiting this is provided in a cylinder body so as to be able to come into contact with a piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16078284U JPH0135823Y2 (en) | 1984-10-24 | 1984-10-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16078284U JPH0135823Y2 (en) | 1984-10-24 | 1984-10-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6175982U true JPS6175982U (en) | 1986-05-22 |
| JPH0135823Y2 JPH0135823Y2 (en) | 1989-11-01 |
Family
ID=30718697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16078284U Expired JPH0135823Y2 (en) | 1984-10-24 | 1984-10-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0135823Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017010400A1 (en) * | 2015-07-13 | 2017-01-19 | 古河ロックドリル株式会社 | Hydraulic hammering device |
| US11207769B2 (en) | 2017-01-12 | 2021-12-28 | Furukawa Rock Drill Co., Ltd. | Hydraulic hammering device |
-
1984
- 1984-10-24 JP JP16078284U patent/JPH0135823Y2/ja not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017010400A1 (en) * | 2015-07-13 | 2017-01-19 | 古河ロックドリル株式会社 | Hydraulic hammering device |
| JPWO2017010400A1 (en) * | 2015-07-13 | 2017-12-28 | 古河ロックドリル株式会社 | Hydraulic striking device |
| CN107848097B (en) * | 2015-07-13 | 2021-04-27 | 古河凿岩机械有限公司 | Hydraulic impact device |
| US11052524B2 (en) | 2015-07-13 | 2021-07-06 | Furukawa Rock Drill Co., Ltd. | Hydraulic hammering device |
| US11207769B2 (en) | 2017-01-12 | 2021-12-28 | Furukawa Rock Drill Co., Ltd. | Hydraulic hammering device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0135823Y2 (en) | 1989-11-01 |
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