JPS63165356U - - Google Patents
Info
- Publication number
- JPS63165356U JPS63165356U JP5728287U JP5728287U JPS63165356U JP S63165356 U JPS63165356 U JP S63165356U JP 5728287 U JP5728287 U JP 5728287U JP 5728287 U JP5728287 U JP 5728287U JP S63165356 U JPS63165356 U JP S63165356U
- Authority
- JP
- Japan
- Prior art keywords
- relay
- switching valve
- electromagnetic switching
- opens
- electric signal
- 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
- 230000005540 biological transmission Effects 0.000 claims description 2
- 230000001629 suppression Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Operation Control Of Excavators (AREA)
Description
第１図は車輪式トラクタシヨベルの構成を示す
側面図、第２図は車輪式トラクタシヨベルの走行
中の側面図、第３図は本考案にかかる電気・油圧
系統図、第４図、第５図はスイツチボツクスの配
置・形状の例を示す斜視図である。
３……作業装置、８……リフトシリンダ、１３
……リフトシリンダ用油圧切換弁、１７……電磁
切換弁、１８……スローリターン弁、２０……振
動抑制回路、２９……変速レバ、３１……前後進
レバ、３３……変速機制御装置、４２，４３……
リレー。
Fig. 1 is a side view showing the configuration of a wheeled tractor shovel, Fig. 2 is a side view of the wheeled tractor shovel while it is running, Fig. 3 is an electric/hydraulic system diagram according to the present invention, Fig. 4, FIG. 5 is a perspective view showing an example of the arrangement and shape of the switchbox. 3... Working device, 8... Lift cylinder, 13
... Hydraulic switching valve for lift cylinder, 17 ... Solenoid switching valve, 18 ... Slow return valve, 20 ... Vibration suppression circuit, 29 ... Speed change lever, 31 ... Forward/forward lever, 33 ... Transmission control device , 42, 43...
relay.
Claims (1)
油圧シリンダにより作業装置の自重並びに作業負
荷を支持し、あるいは所定の回動動作をなさしめ
る車輪式建設機械であつて、変速レバに連動して
電気回路を開閉するスイツチからの電気信号によ
り作動する油圧クラツチ用電磁切換弁を介して圧
油を制御して変速機内の油圧クラツチを断接して
走行速度段を選定する形式の機械において、作業
装置を支持する油圧シリンダの負荷側の油室に連
通する管路の分岐管路に、常時は、ばねの付勢力
により内部油路を閉路しており、外部からの電気
信号により開路する電磁切換弁を介してアキユム
レータを管路で接続し、該管路の中間にはスロー
リターン弁を配設し、さらに、変速レバに連動す
るスイツチのうち、高速度段を選定する１または
複数のスイツチからの電気信号により作動するリ
レーを設け、前記電磁切換弁の受信部と該リレー
の出力部を接続するとともに、電源を上記リレー
および電磁切換弁に接続してなる車輪式建設機械
の自動振動抑制装置。 One end of the working device is attached to the vehicle body in an articulated manner,
A wheeled construction machine that uses hydraulic cylinders to support the weight and work load of working equipment or to perform predetermined rotational movements, and is operated by electrical signals from a switch that opens and closes an electrical circuit in conjunction with a gear shift lever. In a machine that selects the traveling speed stage by controlling the pressure oil through the electromagnetic switching valve for the hydraulic clutch and connecting/disconnecting the hydraulic clutch in the transmission, it communicates with the oil chamber on the load side of the hydraulic cylinder that supports the working equipment. An accumulator is connected via a solenoid switching valve that normally closes the internal oil passage by the biasing force of a spring and opens the circuit in response to an electric signal from the outside. A slow return valve is disposed in the middle of the path, and a relay is further provided that is activated by an electric signal from one or more switches for selecting a high speed gear from among the switches linked to the gear shift lever, and the electromagnetic switching valve An automatic vibration suppression device for a wheeled construction machine, which connects a receiving section of the relay to an output section of the relay, and connects a power source to the relay and the electromagnetic switching valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5728287U JPH0513816Y2 (en) | 1987-04-14 | 1987-04-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5728287U JPH0513816Y2 (en) | 1987-04-14 | 1987-04-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63165356U true JPS63165356U (en) | 1988-10-27 |
| JPH0513816Y2 JPH0513816Y2 (en) | 1993-04-13 |
Family
ID=30886850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5728287U Expired - Lifetime JPH0513816Y2 (en) | 1987-04-14 | 1987-04-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0513816Y2 (en) |
-
1987
- 1987-04-14 JP JP5728287U patent/JPH0513816Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0513816Y2 (en) | 1993-04-13 |
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