JPS58185688U - Crawler drill drifter device - Google Patents
Crawler drill drifter deviceInfo
- Publication number
- JPS58185688U JPS58185688U JP8338282U JP8338282U JPS58185688U JP S58185688 U JPS58185688 U JP S58185688U JP 8338282 U JP8338282 U JP 8338282U JP 8338282 U JP8338282 U JP 8338282U JP S58185688 U JPS58185688 U JP S58185688U
- Authority
- JP
- Japan
- Prior art keywords
- ports
- spool
- drifter
- striking piston
- variable valve
- 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
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Earth Drilling (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
図面はこの考案の一実施例を示し、第１図は全 ゛
体的な断面図、第２図は要部の拡大図である。
１はドリフタ本体、１ａは前室、ＩＣは油路、２は打撃
ピストン、３はシャンクロッド、４ｃは後室、４１，４
□、４３はポート、５はピストン切換えバルブ、６は油
圧ポンプ、１１は可変バルブ、１２はセンタリングばね
、１６は切換え弁。The drawings show one embodiment of this invention, with FIG. 1 being an overall sectional view and FIG. 2 being an enlarged view of the main parts. 1 is the drifter body, 1a is the front chamber, IC is the oil path, 2 is the striking piston, 3 is the shank rod, 4c is the rear chamber, 41, 4
□, 43 are ports, 5 is a piston switching valve, 6 is a hydraulic pump, 11 is a variable valve, 12 is a centering spring, and 16 is a switching valve.
Claims (1)
２の前後に前室１ａ及び後室４Ｃを設け、これら前室１
ａ及び４Ｃに供給される油圧ポンプ６からの油圧をビス
トーン切換えバルブ５により切換えることにより上記打
撃ピストン２を往復動させて、本体１先端に設けたシャ
ンクロッド３を打撃するものにおいて、上記前室１ａ及
び後室４Ｃ内の後室４ Ｃ寄りに、打撃ピストン２のス
トロークを規制する複数のポート４□＋ ４２ｓ ４
３を設け、かつこれらポー）４．．４゜、４３と上記前
室１ａに通じる油路１Ｃの間に、切換え弁１６の操作に
より２位置へ、またセンタリングばね１２により中立位
置へ切換え自在なスプール１３を有する可変バルブ１１
を設け、この可変バルブ１１のスプール１３に設けたポ
ート１３ａ、１３ｂを介して油路ＩＣと上記複数のポー
ト４１ないし４３の間を選択的に接続できるようにして
なるクローラドリルのドリフタ装置。A front chamber 1a and a rear chamber 4C are provided before and after a striking piston 2 which is reciprocably housed in the drifter body 1.
The front chamber is configured to reciprocate the striking piston 2 by switching the hydraulic pressure from the hydraulic pump 6 supplied to the a and 4C by the bistone switching valve 5 to strike the shank rod 3 provided at the tip of the main body 1. 1a and a plurality of ports 4□+42s 4 for regulating the stroke of the striking piston 2 near the rear chamber 4C in the rear chamber 4C.
3, and these ports) 4. ．． 4°, 43 and the oil passage 1C communicating with the front chamber 1a, there is a variable valve 11 having a spool 13 which can be freely switched to the 2nd position by operating the switching valve 16 and to the neutral position by the centering spring 12.
A drifter device for a crawler drill, which is provided with a spool 13 of the variable valve 11 and can selectively connect between the oil passage IC and the plurality of ports 41 to 43 through ports 13a and 13b provided on the spool 13 of the variable valve 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8338282U JPS58185688U (en) | 1982-06-07 | 1982-06-07 | Crawler drill drifter device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8338282U JPS58185688U (en) | 1982-06-07 | 1982-06-07 | Crawler drill drifter device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58185688U true JPS58185688U (en) | 1983-12-09 |
Family
ID=30092394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8338282U Pending JPS58185688U (en) | 1982-06-07 | 1982-06-07 | Crawler drill drifter device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58185688U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5380304A (en) * | 1976-12-23 | 1978-07-15 | Krupp Gmbh | Impact device that stroke can be adjusted by remote control and that can be operated by pressure medium |
-
1982
- 1982-06-07 JP JP8338282U patent/JPS58185688U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5380304A (en) * | 1976-12-23 | 1978-07-15 | Krupp Gmbh | Impact device that stroke can be adjusted by remote control and that can be operated by pressure medium |
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