JPH0269694U - - Google Patents
Info
- Publication number
- JPH0269694U JPH0269694U JP14979088U JP14979088U JPH0269694U JP H0269694 U JPH0269694 U JP H0269694U JP 14979088 U JP14979088 U JP 14979088U JP 14979088 U JP14979088 U JP 14979088U JP H0269694 U JPH0269694 U JP H0269694U
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- hoisting
- clutch
- valve
- control 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.)
- Granted
Links
- 238000004804 winding Methods 0.000 claims description 27
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Control And Safety Of Cranes (AREA)
Description
第１図は本考案の実施例を示す油圧回路図、第
２図はバケツト作業時の状態を示す建設機械の側
面図である。
１……主巻ドラム、２……補巻ドラム、３……
主巻ドラム駆動用油圧モータ、４……補巻ドラム
駆動用油圧モータ、５……主巻用遠隔操作弁、６
……補巻用遠隔操作弁、８……バケツト、１０…
…開閉ロープ（主巻ロープ）、２０……支持ロー
プ（補巻ロープ）、１２……主巻用クラツチ、１
４……主巻用フツトブレーキ、２２……補巻用ク
ラツチ、２４……補巻用フツトブレーキ、３１…
…主巻用方向切換弁、３２……油圧ポンプ、４１
……補巻用方向切換弁、４２……油圧ポンプ、５
１……主巻レバー、５４，５５……パイロツト管
路、５６……主巻用クラツチ弁、６１……補巻レ
バー、６４，６５……パイロツト管路、６６……
補巻用クラツチ弁、７１……第１選択弁、７２…
…減圧弁、７４……第２選択弁、７３，７５……
高圧選択弁。
FIG. 1 is a hydraulic circuit diagram showing an embodiment of the present invention, and FIG. 2 is a side view of the construction machine showing the state during bucket work. 1...Main winding drum, 2...Auxiliary winding drum, 3...
Hydraulic motor for driving main winding drum, 4... Hydraulic motor for driving auxiliary winding drum, 5... Remote control valve for main winding, 6
...Remote control valve for auxiliary winding, 8...Bucket, 10...
...Opening/closing rope (main winding rope), 20...Support rope (auxiliary winding rope), 12...Main winding clutch, 1
4... Foot brake for main winding, 22... Clutch for auxiliary winding, 24... Foot brake for auxiliary winding, 31...
... Directional switching valve for main winding, 32 ... Hydraulic pump, 41
... Directional switching valve for auxiliary winding, 42 ... Hydraulic pump, 5
1...Main winding lever, 54, 55...Pilot conduit, 56...Main winding clutch valve, 61...Auxiliary winding lever, 64, 65...Pilot conduit, 66...
Auxiliary winding clutch valve, 71...first selection valve, 72...
...Pressure reducing valve, 74...Second selection valve, 73, 75...
High pressure selection valve.
Claims (1)
ム駆動用油圧モータと、油圧ポンプと、このポン
プから上記油圧モータに対する圧油の給排を制御
する方向切換弁と、上記油圧モータの回転をウイ
ンチドラムに伝達するクラツチと、レバー操作に
より巻上側または巻下側のパイロツト管路にパイ
ロツト圧を出力して上記方向切換弁を切換えると
ともに、クラツチをオンさせる遠隔操作弁とを備
えたウインチにおいて、主巻用クラツチに作動圧
を入力させる主巻用クラツチ管路と、補巻用クラ
ツチに作動圧を入力させる補巻用クラツチ管路と
、上記主巻用クラツチ管路の圧力を取出して減圧
する減圧弁と、この減圧弁の二次圧と補巻用クラ
ツチ管路の作動圧とを高圧選択して補巻用クラツ
チに入力させる高圧選択弁と、上記減圧弁を作動
させない第１作業位置と作動させる第２作業位置
とに切換自在の第１選択弁と、補巻用方向切換弁
の巻上側切換部に対し主巻用遠隔操作弁の巻上側
に出力されたパイロツト圧と補巻用遠隔操作弁の
巻上側に出力されたパイロツト圧との高圧側の圧
力を入力させる第１作業位置と、上記補巻用遠隔
操作弁の巻上側のパイロツト圧をそのまま入力さ
せる第２作業位置とに切換自在の第２選択弁とを
備えていることを特徴とするウインチの油圧制御
装置。 The main winding system and the auxiliary winding system include a winch drum, a hydraulic motor for driving the drum, a hydraulic pump, a directional switching valve that controls supply and discharge of pressure oil from the pump to the hydraulic motor, and rotation of the hydraulic motor. In a winch equipped with a clutch that transmits the pressure to the winch drum, and a remote control valve that outputs pilot pressure to the pilot pipe on the hoisting side or the hoisting side to switch the above-mentioned directional control valve and turns on the clutch by operating a lever. , a main winding clutch pipe that inputs operating pressure to the main winding clutch, an auxiliary winding clutch pipe that inputs working pressure to the auxiliary winding clutch, and a pressure in the main winding clutch pipe that is extracted and reduced. a high-pressure selection valve that selects a high pressure between the secondary pressure of the pressure-reducing valve and the operating pressure of the auxiliary winding clutch conduit and inputs it to the auxiliary winding clutch; and a first working position in which the pressure-reducing valve is not operated. and a first selection valve that can be freely switched to a second working position to operate the pilot pressure output to the hoisting side of the remote control valve for main hoisting and the hoisting side switching part of the directional control valve for auxiliary hoisting. A first working position where the pressure on the high pressure side is inputted to the pilot pressure outputted to the hoisting side of the remote control valve, and a second working position where the pilot pressure on the hoisting side of the auxiliary hoisting remote control valve is input as is. A hydraulic control device for a winch, comprising a switchable second selection valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14979088U JPH052546Y2 (en) | 1988-11-17 | 1988-11-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14979088U JPH052546Y2 (en) | 1988-11-17 | 1988-11-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0269694U true JPH0269694U (en) | 1990-05-28 |
| JPH052546Y2 JPH052546Y2 (en) | 1993-01-21 |
Family
ID=31422342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14979088U Expired - Lifetime JPH052546Y2 (en) | 1988-11-17 | 1988-11-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH052546Y2 (en) |
-
1988
- 1988-11-17 JP JP14979088U patent/JPH052546Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH052546Y2 (en) | 1993-01-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0269694U (en) | ||
| JPH115693A (en) | Hydraulic winch unit | |
| JPH021350Y2 (en) | ||
| JPS6220732Y2 (en) | ||
| JPS625190U (en) | ||
| JPS6037429Y2 (en) | Hydraulic control circuit for hoisting drum | |
| JPH0245322Y2 (en) | ||
| JPH0126714Y2 (en) | ||
| JPH0126713Y2 (en) | ||
| JPS6429388U (en) | ||
| JPH026061Y2 (en) | ||
| JP2538712Y2 (en) | Hydraulic circuit of small excavator | |
| JPH0354854U (en) | ||
| JPH0144553Y2 (en) | ||
| JPH0357037B2 (en) | ||
| JPS62157896U (en) | ||
| JPH0456191U (en) | ||
| JPS63157089U (en) | ||
| JPH0665387U (en) | Winch for construction machinery | |
| JPH0723622B2 (en) | Control device for turning parking brake | |
| JPS61112069U (en) | ||
| JPH0223475B2 (en) | ||
| JPH0622162U (en) | Releasing circuit for swing parking brake | |
| JPS6183696U (en) | ||
| JPH07112914B2 (en) | Crane hydraulic control device |