JPH0190860U - - Google Patents
Info
- Publication number
- JPH0190860U JPH0190860U JP18100087U JP18100087U JPH0190860U JP H0190860 U JPH0190860 U JP H0190860U JP 18100087 U JP18100087 U JP 18100087U JP 18100087 U JP18100087 U JP 18100087U JP H0190860 U JPH0190860 U JP H0190860U
- Authority
- JP
- Japan
- Prior art keywords
- wire rope
- sheave
- fixed frame
- movable frame
- sheaves
- 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
- 230000002265 prevention Effects 0.000 claims description 6
- 239000002689 soil Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
Landscapes
- Load-Engaging Elements For Cranes (AREA)
- Earth Drilling (AREA)
Description
図面はこの考案の一実施例を示すものであつて
、第１図は切断防止装置の正面図、第２図はその
縦断正面図、第３図は切断防止装置の側面図、第
４図は第１図のＡ―Ａ線断面図、第５図は第１図
のＢ―Ｂ線断面図、第６図は液圧シリンダに接続
されたリリーフ弁付き液圧回路を示す図、第７図
は切断防止装置の使用例を示す一部縦断正面図で
ある。第８図はワイヤロープ切断防止装置の他の
例を示す縦断正面図である。
図において、１はシーブ、２は固定フレーム、
３はシーブ、４は可動フレーム、５は液圧シリン
ダ、６は揚重機、７は電動ウインチ、８はワイヤ
ロープ、９は排土バケツト、１０はリリーフ弁、
１１はガイド部材、１２は連結部材、１３は支持
フレーム、１４はブーム、１５はフレーム、１６
は吊下用シーブ、１９は切換弁、２０は排液管、
２１は貯液タンク、２２は制御用スイツチ、２３
はケーソン、２４は昇降用シヤフト、２５はエア
ロツク装置である。
The drawings show an embodiment of the invention, in which Fig. 1 is a front view of the cut prevention device, Fig. 2 is a longitudinal sectional front view thereof, Fig. 3 is a side view of the cut prevention device, and Fig. 4 is a front view of the cut prevention device. Fig. 1 is a sectional view taken along line AA in Fig. 1, Fig. 5 is a sectional view taken along line BB in Fig. 1, Fig. 6 is a diagram showing a hydraulic circuit with a relief valve connected to a hydraulic cylinder, Fig. 7 FIG. 2 is a partially vertical front view showing an example of the use of the cut prevention device. FIG. 8 is a longitudinal sectional front view showing another example of the wire rope breakage prevention device. In the figure, 1 is a sheave, 2 is a fixed frame,
3 is a sheave, 4 is a movable frame, 5 is a hydraulic cylinder, 6 is a lifting machine, 7 is an electric winch, 8 is a wire rope, 9 is an earth removal bucket, 10 is a relief valve,
11 is a guide member, 12 is a connecting member, 13 is a support frame, 14 is a boom, 15 is a frame, 16
is a hanging sheave, 19 is a switching valve, 20 is a drain pipe,
21 is a liquid storage tank, 22 is a control switch, 23
24 is a caisson, 24 is a lifting shaft, and 25 is an aerodynamic device.
Claims (1)
数のシーブ３を取付けた可動フレーム４とが、伸
長された液圧シリンダ５を介して連結され、揚重
機６の電動ウインチ７から繰り出されたワイヤロ
ープ８は、固定フレーム２のシーブ１と可動フレ
ーム４のシーブ３とに交互にジグザグ状に巻掛け
られ、前記ワイヤロープ８の端部は排土バケツト
９に連結され、前記液圧シリンダ５の液圧回路に
リリーフ弁１０が接続されていることを特徴とす
る排土バケツト昇降用ワイヤロープの切断防止装
置。 A fixed frame 2 to which a plurality of sheaves 1 are attached and a movable frame 4 to which a plurality of sheaves 3 are attached are connected via an extended hydraulic cylinder 5, and a wire rope is paid out from an electric winch 7 of a lifting machine 6. The wire rope 8 is wound alternately around the sheave 1 of the fixed frame 2 and the sheave 3 of the movable frame 4 in a zigzag pattern, and the end of the wire rope 8 is connected to the soil removal bucket 9, and the wire rope 8 is wound around the sheave 1 of the fixed frame 2 and the sheave 3 of the movable frame 4. A break prevention device for a wire rope for lifting and lowering an earth removal bucket, characterized in that a relief valve 10 is connected to a pressure circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987181000U JPH076211Y2 (en) | 1987-11-30 | 1987-11-30 | Wire rope cutting prevention device for raising and lowering the soil removal bucket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987181000U JPH076211Y2 (en) | 1987-11-30 | 1987-11-30 | Wire rope cutting prevention device for raising and lowering the soil removal bucket |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0190860U true JPH0190860U (en) | 1989-06-14 |
| JPH076211Y2 JPH076211Y2 (en) | 1995-02-15 |
Family
ID=31472499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987181000U Expired - Lifetime JPH076211Y2 (en) | 1987-11-30 | 1987-11-30 | Wire rope cutting prevention device for raising and lowering the soil removal bucket |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH076211Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5332594A (en) * | 1976-09-07 | 1978-03-27 | Hitachi Zosen Corp | Ship |
-
1987
- 1987-11-30 JP JP1987181000U patent/JPH076211Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5332594A (en) * | 1976-09-07 | 1978-03-27 | Hitachi Zosen Corp | Ship |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH076211Y2 (en) | 1995-02-15 |
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