JPS645999U - - Google Patents
Info
- Publication number
- JPS645999U JPS645999U JP9937287U JP9937287U JPS645999U JP S645999 U JPS645999 U JP S645999U JP 9937287 U JP9937287 U JP 9937287U JP 9937287 U JP9937287 U JP 9937287U JP S645999 U JPS645999 U JP S645999U
- Authority
- JP
- Japan
- Prior art keywords
- main
- hydraulic pressure
- pushing
- push
- cylinder
- 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
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Description
第１図はこの考案の実施例に関わる油圧配管図
であり、鋼管圧入時の油圧系路を示し、第２図は
同じく元押し装置本体の後退時の油圧系路を示す
。第３図は従来の油圧配管図を示す。
１……元押し装置本体、２……切換えバルブ、
３……切換えバルブ、８……切換えバルブ、９…
…切換えバルブ、Ａ……元押しシリンダ、Ｂ……
元押しシリンダ、Ｃ……チヤツキングシリンダ、
Ｄ……チヤツキングシリンダ、……回路、…
…回路。
FIG. 1 is a hydraulic piping diagram relating to an embodiment of this invention, showing the hydraulic system path during press-fitting of a steel pipe, and FIG. 2 similarly shows the hydraulic system path when the main pushing device main body is retracted. FIG. 3 shows a conventional hydraulic piping diagram. 1... Main pusher main body, 2... Switching valve,
3...Switching valve, 8...Switching valve, 9...
...Switching valve, A...Main push cylinder, B...
Main pushing cylinder, C...chucking cylinder,
D...Chatting cylinder,...Circuit,...
…circuit.
Claims (1)
ランプし、平行に配置された１対の元押しシリン
ダＡ，Ｂの押し側に同時に油圧を供給し、元押し
装置本体１を前進、鋼管を地中に圧入する管埋設
機の元押し装置の油圧回路において、元押しシリ
ンダＡの戻し側配管と元押しシリンダＢの押し側
配管に夫々、切換えバルブ８，９を設けて、鋼管
圧入完了後の後退時に元押しシリンダＢの戻し側
に油圧を供給することによつて押し側の油圧を元
押しシリンダＡの戻し側に供給し、押し側の油圧
を油圧タンクへ戻すように直列的に油圧を供給し
て後退速度を圧入速度の２倍に切換え可能とした
ことを特徴とする、管埋設機の元押し油圧回路。 The steel pipe is clamped by chucking cylinders C and D, and hydraulic pressure is simultaneously supplied to the pushing sides of a pair of main pushing cylinders A and B arranged in parallel, and the main pushing device body 1 is advanced and the steel pipe is ground. In the hydraulic circuit of the main pushing device of the pipe embedding machine, switching valves 8 and 9 are provided on the return side piping of the main pushing cylinder A and the pushing side piping of the main pushing cylinder B, respectively, so that the When reversing, by supplying hydraulic pressure to the return side of the main push cylinder B, the hydraulic pressure on the push side is supplied to the return side of the main push cylinder A, and the hydraulic pressure is applied in series so that the hydraulic pressure on the push side is returned to the hydraulic tank. A main push hydraulic circuit for a pipe burying machine, characterized in that the supply and retraction speed can be switched to twice the press-in speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9937287U JPH0545671Y2 (en) | 1987-06-30 | 1987-06-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9937287U JPH0545671Y2 (en) | 1987-06-30 | 1987-06-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS645999U true JPS645999U (en) | 1989-01-13 |
| JPH0545671Y2 JPH0545671Y2 (en) | 1993-11-24 |
Family
ID=31326470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9937287U Expired - Lifetime JPH0545671Y2 (en) | 1987-06-30 | 1987-06-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0545671Y2 (en) |
-
1987
- 1987-06-30 JP JP9937287U patent/JPH0545671Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0545671Y2 (en) | 1993-11-24 |
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