JPS5930723U - Wheel-type hydraulic excavator travel speed control device - Google Patents
Wheel-type hydraulic excavator travel speed control deviceInfo
- Publication number
- JPS5930723U JPS5930723U JP12549882U JP12549882U JPS5930723U JP S5930723 U JPS5930723 U JP S5930723U JP 12549882 U JP12549882 U JP 12549882U JP 12549882 U JP12549882 U JP 12549882U JP S5930723 U JPS5930723 U JP S5930723U
- Authority
- JP
- Japan
- Prior art keywords
- control device
- speed control
- hydraulic excavator
- wheel
- variable displacement
- 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
Landscapes
- Operation Control Of Excavators (AREA)
- Arrangement Or Mounting Of Control Devices For Change-Speed Gearing (AREA)
- Motor Power Transmission Devices (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案の対象とするホイール式油圧ショベルの
外観を示す側面図、第２図は第１図に示すホイール式油
圧ショベルに具備される走行用油圧回路の基本構成を示
す回路図、第３図及び第４図は従来の走行速度制御装置
の要部を示す説明図で、第３図はアクセルペダル関係部
分を示す側面図、第４図は操作レバー関係部分を示す側
面図、第５図は本考案のホイール式油圧ショベルの走行
速度制御装置の一実施例の要部を示す側面図、第６図は
第５図のＡ−Ａ部分拡大断面図、第７図ないし第９図は
それぞれ従来の走行速度制御装置における特性を例示す
る特性図、第１０図は第５図に示す本考案の一実施例に
おける特性を示す特性図である。
１・・・・・・上部旋回体、２・・・・・・作業装置、
３・・・・・・下部走行体、４・・・・・・車輪、５・
・・・・・油圧モータ、６・・・・・・エンジン（駆動
源）、７・・・・・・可変容量形油圧ポンプ、８・・・
・・・走行用方向切換弁、９・・・・・・操作レバー、
１３・・・・・・アクセルペダル、１３ａ・・・・・・
床、１４．１７．２０，２２．２７．２９・・・・・・
ロンド、１５．２５・・・・・・レバー、１６． ２６
． ３０・・・・・・ばね、１８・・・・・・アクセル
レバ−１１９・・・・・・リンク、２１・・・・・・燃
料レバー、２３． ３２・・・・・・スプール、２３ａ
・・・・・・カム、２４・・・・・・ローラ、２８・・
・・・・レギュレークレバー、３１・・・用ジヨイント
、３１ａ・・・・・・リング、３２ａ・・・・・・端部
。
Ｎ）。
３１３１ａ−３０−
エンヅソ回転較Ｎ◆FIG. 1 is a side view showing the appearance of a wheeled hydraulic excavator to which the present invention is applied; FIG. 2 is a circuit diagram showing the basic configuration of a traveling hydraulic circuit included in the wheeled hydraulic excavator shown in FIG. 1; 3 and 4 are explanatory diagrams showing the main parts of a conventional traveling speed control device. FIG. 3 is a side view showing the accelerator pedal-related part, FIG. 4 is a side view showing the operating lever-related part, and FIG. FIG. 5 is a side view showing essential parts of an embodiment of the running speed control device for a wheeled hydraulic excavator according to the present invention, FIG. 6 is an enlarged cross-sectional view of a portion taken along the line A-A in FIG. 5, and FIGS. 7 to 9 are characteristic diagrams illustrating the characteristics of a conventional traveling speed control device, respectively, and FIG. 10 is a characteristic diagram illustrating the characteristics of an embodiment of the present invention shown in FIG. 1... upper revolving body, 2... working device,
3... lower running body, 4... wheels, 5...
... Hydraulic motor, 6 ... Engine (drive source), 7 ... Variable displacement hydraulic pump, 8 ...
... Traveling direction switching valve, 9... Operation lever,
13... Accelerator pedal, 13a...
Floor, 14.17.20, 22.27.29...
Rondo, 15.25... Lever, 16. 26
．． 30... Spring, 18... Accelerator lever 119... Link, 21... Fuel lever, 23. 32...Spool, 23a
...Cam, 24...Roller, 28...
...regulator lever, joint for 31, 31a...ring, 32a...end. N). 3131a-30- Enduso rotation comparison N◆
Claims (1)
吐出容量を制御する吐出容量制御手段と、上記可変容量
形油圧ポンプを駆動する駆動源と、この駆動源の出力を
制御するアクセルペダルと、上記可変容量形油圧ポンプ
によって駆動され１．下部走行体の車輪を作動させる油
圧モータとを備え、油圧モータの回転速度を制御するこ
とにより走行速度を制御するホイール式油圧ショベルの
走行速度制御装置において、上記アクセルペダルと上記
吐出容量制御手段とを連動させる手段を設け、アクセル
ペダルの作動に相応して上記油圧モータの回転速度を制
御するようにしたことを特徴とするホイール式油圧ショ
ベルの走行速度制御装置。A variable displacement hydraulic pump, a discharge displacement control means for controlling the discharge displacement of the variable displacement hydraulic pump, a drive source for driving the variable displacement hydraulic pump, and an accelerator pedal for controlling the output of the drive source; Driven by the above-mentioned variable displacement hydraulic pump 1. A traveling speed control device for a wheeled hydraulic excavator, which comprises a hydraulic motor for operating a wheel of an undercarriage, and which controls the traveling speed by controlling the rotational speed of the hydraulic motor, the accelerator pedal and the discharge volume control means; 1. A running speed control device for a wheeled hydraulic excavator, characterized in that a means for interlocking is provided, and the rotational speed of the hydraulic motor is controlled in accordance with the operation of an accelerator pedal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12549882U JPS5930723U (en) | 1982-08-21 | 1982-08-21 | Wheel-type hydraulic excavator travel speed control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12549882U JPS5930723U (en) | 1982-08-21 | 1982-08-21 | Wheel-type hydraulic excavator travel speed control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5930723U true JPS5930723U (en) | 1984-02-25 |
| JPS6342657Y2 JPS6342657Y2 (en) | 1988-11-08 |
Family
ID=30285697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12549882U Granted JPS5930723U (en) | 1982-08-21 | 1982-08-21 | Wheel-type hydraulic excavator travel speed control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5930723U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55156721A (en) * | 1979-05-21 | 1980-12-06 | Kubota Ltd | Operating mechanism of working car |
| JPS5722765A (en) * | 1980-07-18 | 1982-02-05 | Kuraray Co | Double filtration type blood plasma separating exchanging device |
-
1982
- 1982-08-21 JP JP12549882U patent/JPS5930723U/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55156721A (en) * | 1979-05-21 | 1980-12-06 | Kubota Ltd | Operating mechanism of working car |
| JPS5722765A (en) * | 1980-07-18 | 1982-02-05 | Kuraray Co | Double filtration type blood plasma separating exchanging device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6342657Y2 (en) | 1988-11-08 |
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