JPH0284002U - - Google Patents
Info
- Publication number
- JPH0284002U JPH0284002U JP16378188U JP16378188U JPH0284002U JP H0284002 U JPH0284002 U JP H0284002U JP 16378188 U JP16378188 U JP 16378188U JP 16378188 U JP16378188 U JP 16378188U JP H0284002 U JPH0284002 U JP H0284002U
- Authority
- JP
- Japan
- Prior art keywords
- switching valve
- hydraulic
- brake
- pressure fluid
- hydraulic motor
- 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
- 239000012530 fluid Substances 0.000 claims description 18
- 238000009439 industrial construction Methods 0.000 claims description 5
- 230000007935 neutral effect Effects 0.000 claims 3
- 238000007599 discharging Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Operation Control Of Excavators (AREA)
- Jib Cranes (AREA)
- Fluid-Pressure Circuits (AREA)
Description
第１図は本考案の一実施例における産建機の旋
回体制御装置の液圧回路図、第２図は本考案の別
の実施例における産建機の旋回体制御装置の液圧
回路図である。
１……液圧モータ、１ａ……圧液供給口、１ｂ
……圧液排出口、２……旋回体、３……メカニカ
ルブレーキ装置、４……旋回方向切換弁、８……
バイパス用電磁切換弁、８ｅ……ソレノイド、９
……ブレーキ解除用パイロツト液圧式切換弁、１
０……高圧選択弁、１２……モード切換スイツチ
、３１……ブロツク弁。
Fig. 1 is a hydraulic circuit diagram of a rotating body control device for an industrial construction machine in one embodiment of the present invention, and Fig. 2 is a hydraulic circuit diagram of a rotating body control device for an industrial construction machine in another embodiment of the present invention. It is. 1...Hydraulic pressure motor, 1a...Pressure fluid supply port, 1b
...Pressure fluid discharge port, 2...Swivel body, 3...Mechanical brake device, 4...Swivel direction switching valve, 8...
Bypass solenoid switching valve, 8e... Solenoid, 9
...Pilot hydraulic switching valve for brake release, 1
0...High pressure selection valve, 12...Mode selection switch, 31...Block valve.
Claims (1)
体の旋回を停止させる液圧式のメカニカルブレー
キ装置とを制御する産建機の旋回体制御装置にお
いて、前記液圧モータに供給される作動用圧液を
制御して液圧モータが正転する状態と逆転する状
態と回転しない状態とに切換える旋回方向切換弁
と、前記メカニカルブレーキ装置にブレーキ解除
用圧液を供給する状態と排出する状態とに切換わ
るブレーキ解除用パイロツト液圧式切換弁と、前
記旋回方向切換弁が中立状態でないときに前記ブ
レーキ解除用パイロツト液圧式切換弁にパイロツ
ト圧液を供給する高圧選択弁と、前記液圧モータ
の圧液供給口と圧液排出口とを連通させる状態と
その連通を遮断する状態とに切換わると共に前記
高圧選択弁を介して前記ブレーキ解除用パイロツ
ト液圧式切換弁にパイロツト圧液を供給する状態
とその供給を遮断する状態とに切換わるバイパス
用電磁切換弁と、前記バイパス用電磁切換弁のソ
レノイドへの通電を制御するモード切換スイツチ
とを設け、前記モード切換スイツチにより一方の
モードを選択したときには、前記旋回方向切換弁
が中立状態のときに前記メカニカルブレーキ装置
のブレーキが作動し、前記モード切換スイツチに
より他方のモードを選択したときには、前記バイ
パス用電磁切換弁により前記液圧モータの圧液供
給口と圧液排出口とが互いに連通し、かつ前記メ
カニカルブレーキ装置のブレーキが解除される構
成としたことを特徴とする産建機の旋回体制御装
置。 ２ バイパス用電磁切換弁としてパイロツト液圧
式兼用のものを用い、メカニカルブレーキ装置に
ブレーキ解除用圧液を供給する状態とその供給を
遮断する状態とに切換わるブロツク弁をブレーキ
解除用パイロツト液圧式切換弁と直列に接続し、
旋回体を旋回させる液圧モータ以外の駆動用機器
を作動させる操作に連動して前記バイパス用電磁
切換弁およびブロツク弁にパイロツト圧液を供給
することにより、モード切換スイツチにより一方
のモードを選択したときには、旋回方向切換弁が
中立状態のときに前記メカニカルブレーキ装置の
ブレーキが作動し、かつ液圧モータ以外の前記駆
動用機器の作動時に前記バイパス用電磁切換弁に
より前記液圧モータの圧液供給口と圧液排出口と
が互いに連通すると共に前記メカニカルブレーキ
装置のブレーキが作動し、前記モード切換スイツ
チにより他方のモードを選択したときには、液圧
モータ以外の前記駆動用機器が作動していない時
に前記バイパス用電磁切換弁により前記液圧モー
タの圧液供給口と圧液排出口とが互いに連通する
と共に前記メカニカルブレーキ装置のブレーキが
解除され、液圧モータ以外の前記駆動用機器の作
動時に前記バイパス用電磁切換弁により前記液圧
モータの圧液供給口と圧液排出口とが互いに連通
すると共に前記メカニカルブレーキ装置のブレー
キが作動する構成としたことを特徴とする実用新
案登録請求の範囲第１項に記載の産建機の旋回体
制御装置。[Claims for Utility Model Registration] 1. A revolving body control device for industrial construction equipment that controls a hydraulic motor for rotating a revolving body and a hydraulic mechanical brake device for stopping the rotation of the revolving body. A rotation direction switching valve that controls operating pressure fluid supplied to the motor to switch the hydraulic motor between a normal rotation state, a reverse rotation state, and a non-rotation state, and a brake release pressure fluid is supplied to the mechanical brake device. a pilot hydraulic switching valve for brake release that switches between a brake releasing state and a discharging state; and a high pressure selection valve that supplies pilot pressure fluid to the brake releasing pilot hydraulic switching valve when the swing direction switching valve is not in a neutral state. Then, the pressure fluid supply port and the pressure fluid discharge port of the hydraulic motor are switched between a state in which they communicate with each other and a state in which the communication is cut off. A bypass electromagnetic switching valve that switches between a state in which pilot pressure fluid is supplied and a state in which the supply is cut off, and a mode switching switch that controls energization to a solenoid of the bypass electromagnetic switching valve; When one mode is selected, the brake of the mechanical brake device is activated when the swing direction switching valve is in the neutral state, and when the other mode is selected using the mode selection switch, the brake of the mechanical brake device is activated by the bypass electromagnetic switching valve. A rotating body control device for industrial construction machinery, characterized in that a pressure fluid supply port and a pressure fluid discharge port of the hydraulic motor are in communication with each other, and the brake of the mechanical brake device is released. 2. As a bypass electromagnetic switching valve, a pilot hydraulic switching valve is used, and a block valve that switches between supplying brake release pressure fluid to the mechanical brake device and cutting off that supply is used as a brake release pilot hydraulic switching valve. Connect in series with the valve,
One mode is selected by the mode changeover switch by supplying pilot pressure fluid to the bypass electromagnetic switching valve and the block valve in conjunction with the operation of actuating drive equipment other than the hydraulic motor for turning the revolving structure. Sometimes, when the swing direction switching valve is in a neutral state, the brake of the mechanical brake device is activated, and when the driving equipment other than the hydraulic motor is operated, the bypass electromagnetic switching valve is used to supply pressurized fluid to the hydraulic motor. When the opening and the pressure fluid discharge port communicate with each other, the brake of the mechanical brake device is activated, and the other mode is selected by the mode changeover switch, when the driving equipment other than the hydraulic motor is not operating. The bypass electromagnetic switching valve causes the hydraulic fluid supply port and the hydraulic fluid discharge port of the hydraulic motor to communicate with each other, and the brake of the mechanical brake device is released, so that when the driving equipment other than the hydraulic motor is operated, Utility model registration claim No. 1, characterized in that the hydraulic fluid supply port and the hydraulic fluid discharge port of the hydraulic motor are communicated with each other by a bypass electromagnetic switching valve, and the brake of the mechanical brake device is actuated. The revolving body control device for industrial construction machinery according to item 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988163781U JPH0755362Y2 (en) | 1988-12-16 | 1988-12-16 | Revolving structure control device for construction machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988163781U JPH0755362Y2 (en) | 1988-12-16 | 1988-12-16 | Revolving structure control device for construction machinery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0284002U true JPH0284002U (en) | 1990-06-29 |
| JPH0755362Y2 JPH0755362Y2 (en) | 1995-12-20 |
Family
ID=31448812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988163781U Expired - Lifetime JPH0755362Y2 (en) | 1988-12-16 | 1988-12-16 | Revolving structure control device for construction machinery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0755362Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56167903A (en) * | 1980-05-24 | 1981-12-23 | Hitachi Constr Mach Co Ltd | Hydraulic circuit of brake for hydraulic motor |
| JPS62196258U (en) * | 1986-06-03 | 1987-12-14 |
-
1988
- 1988-12-16 JP JP1988163781U patent/JPH0755362Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56167903A (en) * | 1980-05-24 | 1981-12-23 | Hitachi Constr Mach Co Ltd | Hydraulic circuit of brake for hydraulic motor |
| JPS62196258U (en) * | 1986-06-03 | 1987-12-14 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0755362Y2 (en) | 1995-12-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6732513B2 (en) | Rotating control circuit | |
| JPH0222481Y2 (en) | ||
| US4694647A (en) | Hydraulic circuit system for use in hydraulically operated vehicles | |
| JPH0284002U (en) | ||
| JP3774014B2 (en) | Control device for hydraulic work machine | |
| JPH0624445Y2 (en) | Swing hydraulic circuit of hydraulic shovel | |
| JPH0284001U (en) | ||
| JPH0118695Y2 (en) | ||
| JPH083473Y2 (en) | Swing lock circuit of hydraulic construction machine | |
| KR920702744A (en) | Driving device of hydraulic excavator and operating device of working machine | |
| JPH0316879Y2 (en) | ||
| JPH0724445Y2 (en) | Circuit for operating the swing parking brake | |
| JPH0619876Y2 (en) | Shift control device for traveling work vehicle | |
| JPH0340875Y2 (en) | ||
| KR19980063238A (en) | Multi-purpose hydraulic controller of heavy equipment | |
| JP2538712Y2 (en) | Hydraulic circuit of small excavator | |
| JPH0538291Y2 (en) | ||
| JPH0529260Y2 (en) | ||
| JP2003327095A (en) | Outrigger device of working vehicle | |
| JPH052547Y2 (en) | ||
| JPH0363320A (en) | Operation device for power shovel | |
| JPH0144553Y2 (en) | ||
| JPH0126714Y2 (en) | ||
| JPH0245321Y2 (en) | ||
| JP2000291072A (en) | Rotation locking apparatus for upper rotary body of construction machine |