JPH0393859U - - Google Patents
Info
- Publication number
- JPH0393859U JPH0393859U JP110190U JP110190U JPH0393859U JP H0393859 U JPH0393859 U JP H0393859U JP 110190 U JP110190 U JP 110190U JP 110190 U JP110190 U JP 110190U JP H0393859 U JPH0393859 U JP H0393859U
- Authority
- JP
- Japan
- Prior art keywords
- grapple
- cutting device
- closing
- opening
- oil chamber
- 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
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Operation Control Of Excavators (AREA)
- Shovels (AREA)
Description
第１図はこの考案にかかるグツラプル用油圧回
路図、第２図はこの考案の他実施例油圧回路を示
す要部回路図、第３図はグラツプルを取付けた油
圧シヨベルの側面図、第４図は第３図Ａ部の一部
切欠き詳細図、第５図はグラツプルのグラツプル
部を閉じた状態を示す図、第６図は第５図のＢ−
Ｂより見た一部切欠き平面図、第７図は第５図に
おける把持部材を切断した直後の状態を示す図で
ある。
１，１′……グラツプル、６……グラツプル部
、７，７′……グラツプルシリンダ、８……切断
装置、１１，１１′……カツタシリンダ、１４…
…把持部材、１５，１７……ヘツド側油室、１６
，１８……ロツド側油室、１９，２０……チエツ
ク弁付シーケンス弁、２１……方向切換弁、２５
，２６……メインポンプ、３９，４０……チエツ
ク弁付絞り部。
Fig. 1 is a hydraulic circuit diagram for a grapple pull according to this invention, Fig. 2 is a main circuit diagram showing a hydraulic circuit of another embodiment of this invention, Fig. 3 is a side view of a hydraulic excavator with a grapple attached, and Fig. 4 is a partially cutaway detailed view of part A in Fig. 3, Fig. 5 is a view showing the grapple part of the grapple in a closed state, and Fig. 6 is a detailed view of part A in Fig. 5.
FIG. 7, a partially cutaway plan view seen from B, is a diagram showing a state immediately after the gripping member in FIG. 5 is cut. 1, 1'... Grapple, 6... Grapple portion, 7, 7'... Grapple cylinder, 8... Cutting device, 11, 11'... Cutting cylinder, 14...
...Gripping member, 15, 17...Head side oil chamber, 16
, 18... Rod side oil chamber, 19, 20... Sequence valve with check valve, 21... Directional switching valve, 25
, 26... Main pump, 39, 40... Throttle section with check valve.
Claims (1)
プル部にて把持部材を把持するとともにその把持
された把持部材を上記切断装置にて切断するよう
にしたグラツプルにおいて、グラツプル部開閉用
グラツプルシリンダと切断装置開閉用カツタシリ
ンダを１個の方向切換弁に並列に接続し、上記両
シリンダを相互にヘツド側油室、ロツド側油室を
それぞれチエツク弁付シーケンス弁を介して連通
し、上記両シリンダに圧油を供給したとき、グラ
ツプル部の閉作動は切断装置の閉作動より先行せ
しめ、また切断装置の開動作はグラツプル部の開
作動より先行せしめるように構成したことを特徴
とするグラツプル用油圧回路。 A grapple in which a cutting device is provided on the side of the grapple portion, the grapple portion grips a gripping member, and the gripped member is cut by the cutting device, the grapple cylinder for opening and closing the grapple portion; The cutter cylinders for opening and closing the cutting device are connected in parallel to one directional control valve, and the head side oil chamber and rod side oil chamber are communicated with each other through sequence valves with check valves. Hydraulic pressure for a grapple, characterized in that, when pressure oil is supplied to the grapple, the closing operation of the grapple section precedes the closing operation of the cutting device, and the opening operation of the cutting device precedes the opening operation of the grapple section. circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP110190U JPH0393859U (en) | 1990-01-09 | 1990-01-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP110190U JPH0393859U (en) | 1990-01-09 | 1990-01-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0393859U true JPH0393859U (en) | 1991-09-25 |
Family
ID=31505026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP110190U Pending JPH0393859U (en) | 1990-01-09 | 1990-01-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0393859U (en) |
-
1990
- 1990-01-09 JP JP110190U patent/JPH0393859U/ja active Pending