JPH0195481U - - Google Patents
Info
- Publication number
- JPH0195481U JPH0195481U JP19245287U JP19245287U JPH0195481U JP H0195481 U JPH0195481 U JP H0195481U JP 19245287 U JP19245287 U JP 19245287U JP 19245287 U JP19245287 U JP 19245287U JP H0195481 U JPH0195481 U JP H0195481U
- Authority
- JP
- Japan
- Prior art keywords
- travel
- rotating body
- lower traveling
- block member
- traveling 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.)
- Granted
Links
- 238000010276 construction Methods 0.000 claims 2
- 238000009434 installation Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
Landscapes
- Operation Control Of Excavators (AREA)
- Arrangement And Mounting Of Devices That Control Transmission Of Motive Force (AREA)
- Non-Deflectable Wheels, Steering Of Trailers, Or Other Steering (AREA)
- Control And Safety Of Cranes (AREA)
Description
第１図はこの考案にかかる走行操作機構をそな
えた油圧シヨベルの切欠き平面図、第２図はこの
考案にかかる旋回装置の断面図、第３図はこの考
案にかかる油圧・電気回路図、第４図は表示器の
正面図、第５図は下部走行体に対して上部旋回体
を旋回させた場合の表示器の表示状態を示す平面
視図、第６図は従来技術油圧シヨベルの全体側面
図である。
１，１′……下部走行体、２，３……走行モー
タ、５，５′……上部旋回体、７，８……走行レ
バー、９，９′……旋回装置、１１，１２……リ
ミツトスイツチ、１３……ブロツク部材、１６…
…下面板、１７……グリスシールド板、２４……
電磁弁、２６，２７，２８……表示ランプ、２９
……表示器。
Fig. 1 is a cutaway plan view of a hydraulic excavator equipped with a traveling operation mechanism according to this invention, Fig. 2 is a sectional view of a swing device according to this invention, and Fig. 3 is a hydraulic/electrical circuit diagram according to this invention. Figure 4 is a front view of the display, Figure 5 is a plan view showing the display state of the display when the upper rotating body is rotated relative to the lower traveling body, and Figure 6 is the entire conventional hydraulic excavator. FIG. 1, 1'... Lower traveling body, 2, 3... Traveling motor, 5, 5'... Upper rotating body, 7, 8... Traveling lever, 9, 9'... Swivel device, 11, 12... Limit switch, 13...Block member, 16...
...Bottom plate, 17... Grease shield plate, 24...
Solenoid valve, 26, 27, 28...Indication lamp, 29
……display.
Claims (1)
回可能に設け、上記上部旋回体の運転室内にそな
えた走行レバーにより下部走行体の走行操作を行
うようにした装軌式建設機械において、上記下部
走行体と上部旋回体の相対位置を感知する複数個
リミツトスイツチを、上部旋回体下面の前方側で
かつ上部旋回体の旋回中心より同一半径上の位置
に設け、また、下部走行体上面の後半側に上記リ
ミツトスイツチ取付半径と同一半径に沿つて半円
ドーナツツ形ブロツク部材を固定して設け、一方
、下部走行体用左右走行モータの作動回路または
走行弁操作用パイロツト回路に、前進・後進切換
用電磁弁を介設し、上部旋回体を旋回させたとき
、上記複数個リミツトスイツチの接触子がすべて
上記半円ドーナツツ形ブロツク部材の上面に当接
したときのみ、上記前進・後進切換用電磁弁を前
進位置により後進位置に切換可能とするとともに
、走行レバーの操作方向に対する下部走行体進行
方向を運転室内表示器に表示可能に構成したこと
を特徴とする装軌式建設機械の走行操作機構。 In the tracked construction machine, the upper revolving body is rotatably provided on the lower traveling body via a revolving device, and the lower traveling body is operated by a travel lever provided in a driver's cab of the upper revolving body. A plurality of limit switches for sensing the relative positions of the lower rotating body and the upper rotating body are installed on the front side of the lower surface of the upper rotating body and at positions on the same radius from the center of rotation of the upper rotating body. A semicircular donut-shaped block member is fixedly provided on the side along the same radius as the limit switch installation radius, and on the other hand, the operating circuit for the left and right travel motor for the lower traveling body or the pilot circuit for operating the travel valve is provided with a block member for forward/backward switching. A solenoid valve is provided to operate the forward/backward switching solenoid valve only when the contactors of the plurality of limit switches all come into contact with the upper surface of the semicircular donut-shaped block member when the upper revolving body is rotated. A travel operation mechanism for a tracked construction machine, characterized in that it can be switched from a forward position to a reverse position, and can display on a driver's cabin display the direction in which a lower traveling body is traveling relative to the operating direction of a travel lever.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19245287U JPH0635867Y2 (en) | 1987-12-17 | 1987-12-17 | Traveling operation mechanism of tracked construction machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19245287U JPH0635867Y2 (en) | 1987-12-17 | 1987-12-17 | Traveling operation mechanism of tracked construction machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0195481U true JPH0195481U (en) | 1989-06-23 |
| JPH0635867Y2 JPH0635867Y2 (en) | 1994-09-21 |
Family
ID=31483311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19245287U Expired - Lifetime JPH0635867Y2 (en) | 1987-12-17 | 1987-12-17 | Traveling operation mechanism of tracked construction machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0635867Y2 (en) |
-
1987
- 1987-12-17 JP JP19245287U patent/JPH0635867Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0635867Y2 (en) | 1994-09-21 |
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