JPH0211890U - - Google Patents
Info
- Publication number
- JPH0211890U JPH0211890U JP8932388U JP8932388U JPH0211890U JP H0211890 U JPH0211890 U JP H0211890U JP 8932388 U JP8932388 U JP 8932388U JP 8932388 U JP8932388 U JP 8932388U JP H0211890 U JPH0211890 U JP H0211890U
- Authority
- JP
- Japan
- Prior art keywords
- backward
- striking piston
- shank
- striking
- rod
- 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
- 238000005553 drilling Methods 0.000 claims 2
- 238000000605 extraction Methods 0.000 claims 1
Landscapes
- Percussive Tools And Related Accessories (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Earth Drilling (AREA)
Description
第１図は本考案の実施例に係るロツド引抜き装
置を備えた油圧打撃工具の全体構成を示す縦断面
図である。
１……打撃工具本体、２……シリンダ、４……
打撃ピストン、５……シヤンクロツド、２７……
前部作動室、２８……後部作動室、２９……シヤ
ンクストツパ、３２……圧油供給通路、３４……
第２バルブ（切換バルブ）、３８……第２油圧モ
ータ（油圧アクチユエータ）、Ａ……ロツド引抜
き装置、Ｂ……油圧打撃工具。
FIG. 1 is a longitudinal sectional view showing the overall structure of a hydraulic impact tool equipped with a rod extracting device according to an embodiment of the present invention. 1...Impact tool body, 2...Cylinder, 4...
Strike piston, 5...Shank rod, 27...
Front working chamber, 28... Rear working chamber, 29... Shank stopper, 32... Pressure oil supply passage, 34...
2nd valve (switching valve), 38...2nd hydraulic motor (hydraulic actuator), A...rod pulling device, B...hydraulic impact tool.
Claims (1)
置された打撃ピストンと、該打撃ピストンの前方
に進退移動可能に配置され、打撃ピストンの前進
動作により打撃されるシヤンクロツドと、上記打
撃工具本体をさく孔時に前進移動させ、さく孔後
に後退移動させる油圧アクチユエータとを備え、
上記シリンダと打撃ピストンとの間に形成された
前部作動室および後部作動室に供給される圧油の
油圧差により、上記打撃ピストンをシリンダ内で
進退移動させて上記シヤンクロツドを打撃するよ
うにした油圧打撃工具の上記シヤンクロツドを引
き抜く装置であつて、前記打撃工具本体の前端側
に進退移動可能に配置され、前進移動する上記シ
ヤンクロツドに当接してその前進動作を阻止する
シヤンクストツパと、上記打撃工具本体に設けら
れ、上記打撃ピストンを進退移動させる圧油を上
記シヤンクストツパにそれを後退移動させるべく
供給する圧油供給通路と、該圧油供給通路に介設
され、上記シヤンクロツドの引抜き時、上記油圧
アクチユエータの油圧が所定圧以上になつた際、
開作動して圧油を上記シヤンクストツパに供給す
る切換バルブとを備えてなることを特徴とする油
圧打撃工具のロツド引抜き装置。 A striking piston arranged to be movable forward and backward in a cylinder of a striking tool body, a shunt rod arranged movably forward and backward in front of the striking piston and struck by the forward motion of the striking piston, and a hole drilled in the striking tool body. It is equipped with a hydraulic actuator that moves the hole forward at the time of drilling and moves it backward after drilling.
The striking piston is moved forward and backward within the cylinder to strike the shank rod by a hydraulic pressure difference between pressure oil supplied to a front working chamber and a rear working chamber formed between the cylinder and the striking piston. A device for pulling out the shank rod of a hydraulic impact tool, the shank stopper being arranged movably forward and backward on the front end side of the impact tool body and abutting the shank rod moving forward to prevent its forward movement; and the impact tool main body. a pressure oil supply passage for supplying pressure oil for moving the striking piston forward and backward to the shank stopper in order to move it backward; When the oil pressure of the
A rod extraction device for a hydraulic impact tool, comprising a switching valve that opens to supply pressurized oil to the shank stopper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8932388U JPH069105Y2 (en) | 1988-07-05 | 1988-07-05 | Rod withdrawal device for hydraulic impact tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8932388U JPH069105Y2 (en) | 1988-07-05 | 1988-07-05 | Rod withdrawal device for hydraulic impact tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0211890U true JPH0211890U (en) | 1990-01-25 |
| JPH069105Y2 JPH069105Y2 (en) | 1994-03-09 |
Family
ID=31313875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8932388U Expired - Lifetime JPH069105Y2 (en) | 1988-07-05 | 1988-07-05 | Rod withdrawal device for hydraulic impact tool |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH069105Y2 (en) |
-
1988
- 1988-07-05 JP JP8932388U patent/JPH069105Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH069105Y2 (en) | 1994-03-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201006602Y (en) | Bidirectional impacting pneumatic power impacter | |
| JPH0211890U (en) | ||
| JPH0521718B2 (en) | ||
| JPH0274184U (en) | ||
| JPS63501859A (en) | impact device | |
| JPH0716797Y2 (en) | Strike auxiliary device for hydraulic drifter | |
| JPS6397473U (en) | ||
| JPS6026933Y2 (en) | Hydraulic impact tool switching valve actuator | |
| JPS62174885U (en) | ||
| JPS62861Y2 (en) | ||
| JPH0525826Y2 (en) | ||
| JPS6019196Y2 (en) | Reciprocating switching device for impact piston in hydraulic impact tools | |
| EP0584131A1 (en) | Soil displacement hammer with movable head. | |
| JPH0118303Y2 (en) | ||
| JPS63176087U (en) | ||
| JPH0432229Y2 (en) | ||
| JPS62172576U (en) | ||
| JP2010188492A (en) | Driving tool | |
| JP2599891Y2 (en) | Reverse impact device for pulling out impact tool rods | |
| JPS6420278U (en) | ||
| JPS63176188U (en) | ||
| JPH0135822Y2 (en) | ||
| JPS6042078Y2 (en) | One-shot hammer shock mitigation mechanism | |
| JPS62163592U (en) | ||
| JPH01155186U (en) |