JPS63145763U - - Google Patents
Info
- Publication number
- JPS63145763U JPS63145763U JP3944787U JP3944787U JPS63145763U JP S63145763 U JPS63145763 U JP S63145763U JP 3944787 U JP3944787 U JP 3944787U JP 3944787 U JP3944787 U JP 3944787U JP S63145763 U JPS63145763 U JP S63145763U
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic actuator
- brakes
- hydraulic
- clutches
- oil passage
- 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
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Non-Deflectable Wheels, Steering Of Trailers, Or Other Steering (AREA)
Description
第１図は本考案に係る油圧回路を示す図、第２
図はモノレバーの作動構造を示す側面図、第３図
はその正面図、第４図はスプリングプレートを示
す正面図である。そして、第５図はコンバイン全
体を示す側面図である。
１……作業車輌（コンバイン）、５７……切換
えバルブ（電磁切換えバルブ）、５９，６１……
クラツチ用油路、６０，６２……左右サイドクラ
ツチ用油圧アクチユエータ、６５，６９……油路
（ブレーキ用油路）、６６，７０……左右サイド
ブレーキ用油圧アクチユエータ、７１，７２……
連通油路、７３，７５……チエツクバルブ、７６
……可変リリーフバルブ、Ｐ……油圧ポンプ。
Figure 1 is a diagram showing the hydraulic circuit according to the present invention, Figure 2 is a diagram showing the hydraulic circuit according to the present invention.
The figure is a side view showing the operating structure of the monolever, FIG. 3 is a front view thereof, and FIG. 4 is a front view showing the spring plate. FIG. 5 is a side view showing the entire combine harvester. 1... Work vehicle (combine harvester), 57... Switching valve (electromagnetic switching valve), 59, 61...
Oil passage for clutch, 60, 62... Hydraulic actuator for left and right side clutches, 65, 69... Oil passage (oil passage for brake), 66, 70... Hydraulic actuator for left and right side brakes, 71, 72...
Communication oil passage, 73, 75...Check valve, 76
...Variable relief valve, P...Hydraulic pump.
Claims (1)
ツチ用油圧アクチユエータ及び左右サイドブレー
キを制動・解除する左右サイドブレーキ用油圧ア
クチユエータを備え、かつ油圧ポンプにより圧送
される圧油を、切換えバルブの切換えにて前記左
右サイドクラツチ用油圧アクチユエータ、左右サ
イドブレーキ用油圧アクチユエータに適宜圧送し
てなる作業車輌において、 前記切換えバルブに、前記左サイドクラツチ用
油圧アクチユエータと左サイドブレーキ用油圧ア
クチユエータとを並列にして接続すると共に前記
右サイドクラツチ用油圧アクチユエータと右サイ
ドブレーキ用油圧アクチユエータとを並列にして
接続し、また前記左右サイドブレーキ用油圧アク
チユエータへの油路からそれぞれ連通油路を介し
て１個の可変リリーフバルブに連通し、更に前記
連通油路に、可変リリーフバルブに向けての流れ
を許容するチエツクバルブをそれぞれ介設したこ
とを特徴とする作業車輌における油圧装置。[Scope of Claim for Utility Model Registration] A hydraulic actuator for the left and right side clutches that connects and disconnects the left and right side clutches, and a hydraulic actuator for the left and right side brakes that brakes and releases the left and right side brakes, and switches the pressure oil pumped by a hydraulic pump. In a work vehicle in which the hydraulic actuator for the left and right side clutches and the hydraulic actuator for the left and right side brakes are appropriately fed by switching valves, the hydraulic actuator for the left side clutch and the hydraulic actuator for the left side brake are connected to the switching valve. The hydraulic actuator for the right side clutch and the hydraulic actuator for the right side brake are connected in parallel, and the hydraulic actuator for the right and left side brakes is connected in parallel, and one oil passage is connected to each oil passage to the hydraulic actuator for the left and right side brakes, respectively. 1. A hydraulic system for a work vehicle, which communicates with a variable relief valve, and further includes a check valve interposed in each of the communicating oil passages to allow flow toward the variable relief valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3944787U JPH075025Y2 (en) | 1987-03-17 | 1987-03-17 | Hydraulic system for work vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3944787U JPH075025Y2 (en) | 1987-03-17 | 1987-03-17 | Hydraulic system for work vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63145763U true JPS63145763U (en) | 1988-09-26 |
| JPH075025Y2 JPH075025Y2 (en) | 1995-02-08 |
Family
ID=30852620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3944787U Expired - Lifetime JPH075025Y2 (en) | 1987-03-17 | 1987-03-17 | Hydraulic system for work vehicle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH075025Y2 (en) |
-
1987
- 1987-03-17 JP JP3944787U patent/JPH075025Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH075025Y2 (en) | 1995-02-08 |
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