JPH041086U - - Google Patents
Info
- Publication number
- JPH041086U JPH041086U JP4269290U JP4269290U JPH041086U JP H041086 U JPH041086 U JP H041086U JP 4269290 U JP4269290 U JP 4269290U JP 4269290 U JP4269290 U JP 4269290U JP H041086 U JPH041086 U JP H041086U
- Authority
- JP
- Japan
- Prior art keywords
- sprocket
- idler
- hydraulic jack
- end height
- support body
- 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
- 230000007935 neutral effect Effects 0.000 claims 1
- 239000000725 suspension Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Operation Control Of Excavators (AREA)
Description
第１図はこの考案にかかるクローラ装置を示す
回路図、第２図はこの考案のクローラ装置をそな
えた油圧シヨベルの一部切欠き要部側面図、第３
図は第２図における油圧ジヤツキを操作したとき
の実施例図、第４図は従来技術の油圧シヨベルの
側面図である。
２，１３……トラツクフレーム、３，３′……
クローラ、４，４′……アイドラ、５，５′……
スプロケツト、７，７′……下部ローラ、１１…
…クローラ装置、１４……アイドラ支持体、１８
……スプロケツト支持体、２１，２２……油圧ジ
ヤツキ、２４Ｌ，２４Ｒ……走行用方向切換弁、
３３……電磁切換弁、４７，４８……ポテンシヨ
メータ、４９Ｌ，４９Ｒ……走行用操作レバー、
５０……コントローラ。
Fig. 1 is a circuit diagram showing the crawler device according to this invention, Fig. 2 is a partially cutaway side view of the main part of a hydraulic excavator equipped with the crawler device of this invention, and Fig. 3
The figure is an embodiment of the hydraulic shovel shown in FIG. 2 being operated, and FIG. 4 is a side view of the conventional hydraulic excavator. 2, 13... Truck frame, 3, 3'...
Crawler, 4,4'...Idler, 5,5'...
Sprocket, 7, 7'...lower roller, 11...
... Crawler device, 14 ... Idler support, 18
... Sprocket support body, 21, 22 ... Hydraulic jack, 24L, 24R ... Direction switching valve for travel,
33... Solenoid switching valve, 47, 48... Potentiometer, 49L, 49R... Travel operation lever,
50...controller.
Claims (1)
ラおよびスプロケツトに無端状のクローラを巻装
して足まわりを構成し、アイドラおよびスプロケ
ツトの少なくとも一方を上下揺動可能にしている
クローラ式車両において、アイドラを支持するア
イドラ支持体と、スプロケツトを支持するスプロ
ケツト支持体をトラツクフレームの前部および後
部に対してそれぞれ上下揺動自在に設けるととも
に、上記アイドラ支持体とスプロケツト支持体の
それぞれ一端を油圧ジヤツキを介してトラツクフ
レームに連結し、一方、走行用操作レバーにその
操作レバーが操作時であるか非操作時であるかを
検出するポテンシヨメータを設け、そのポテンシ
ヨメータと油圧ジヤツキ用電磁切換弁とをコント
ローラを介して連結し、走行用操作レバーを操作
したときコントローラより油圧ジヤツキ用電磁切
換弁に対して指令信号を出力することにより上記
油圧ジヤツキを作動してアイドラおよびスプロケ
ツトの下端高さを下部ローラの下端高さより高位
置に変位せしめ、走行用操作レバーを中立位置に
したとき上記油圧ジヤツキの作動によりアイドラ
およびスプロケツトの下端高さを下部ローラの下
端高さより低位置に変位するように構成したこと
を特徴とするクローラ式車両のクローラ装置。 A crawler type vehicle in which an endless crawler is wrapped around an idler and a sprocket provided at the front and rear ends of a truck frame to form a suspension structure, and at least one of the idler and sprocket can swing vertically, supporting the idler. An idler support body for supporting the sprocket and a sprocket support body for supporting the sprocket are provided in the front and rear parts of the truck frame so as to be able to swing vertically, respectively, and one end of each of the idler support body and the sprocket support body is connected via a hydraulic jack. The driving control lever is connected to the truck frame, and the driving control lever is provided with a potentiometer that detects whether the control lever is being operated or not being operated, and the potentiometer and the electromagnetic switching valve for the hydraulic jack are connected to each other. They are connected via a controller, and when the travel operation lever is operated, the controller outputs a command signal to the solenoid switching valve for the hydraulic jack, which operates the hydraulic jack and adjusts the lower end height of the idler and sprocket to the lower roller. The lower end height of the idler and sprocket is displaced to a position higher than the lower end height of the lower roller, and when the travel operation lever is set to the neutral position, the lower end height of the idler and sprocket is displaced to a position lower than the lower end height of the lower roller by the operation of the hydraulic jack. A crawler device for a crawler-type vehicle characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4269290U JPH041086U (en) | 1990-04-20 | 1990-04-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4269290U JPH041086U (en) | 1990-04-20 | 1990-04-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH041086U true JPH041086U (en) | 1992-01-07 |
Family
ID=31554457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4269290U Pending JPH041086U (en) | 1990-04-20 | 1990-04-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH041086U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0627469U (en) * | 1992-09-10 | 1994-04-12 | 住友建機株式会社 | Running equipment for construction vehicles |
-
1990
- 1990-04-20 JP JP4269290U patent/JPH041086U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0627469U (en) * | 1992-09-10 | 1994-04-12 | 住友建機株式会社 | Running equipment for construction vehicles |
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