JPS5845479U - Agricultural tractor hydraulic system - Google Patents
Agricultural tractor hydraulic systemInfo
- Publication number
- JPS5845479U JPS5845479U JP14152681U JP14152681U JPS5845479U JP S5845479 U JPS5845479 U JP S5845479U JP 14152681 U JP14152681 U JP 14152681U JP 14152681 U JP14152681 U JP 14152681U JP S5845479 U JPS5845479 U JP S5845479U
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic system
- agricultural tractor
- adjustment shaft
- grip
- hydraulic cylinder
- 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
Landscapes
- Mechanically-Actuated Valves (AREA)
- Preventing Unauthorised Actuation Of Valves (AREA)
- Lifting Devices For Agricultural Implements (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
図は本考案の実施例を示し、第１図はその縦断面図１、
第２図は第１図の■−■線矢視図親図３図は第１図の■
−■線矢視図親図４図は第３図の■−■線矢視部分図で
ある。
３・・・油圧シリンダ、１，４・・・圧油路、１７・・
・加圧室、１８・・・絞り弁、１８ａ・・・弁座、１８
ｂ・・・弁体、２０・・・調整軸、２０ａ・・・螺子部
、２１・・・把持体、２３・・・菊座面、２４・・・係
合突起。The figures show an embodiment of the present invention, and Fig. 1 is a longitudinal cross-sectional view 1 thereof;
Figure 2 is the parent diagram of the ■-■ line in Figure 1. Figure 3 is the ■-■ line in Figure 1.
Figure 4 is a partial view of FIG. 3 as viewed from the line ■-■. 3... Hydraulic cylinder, 1, 4... Pressure oil path, 17...
・Pressure chamber, 18... Throttle valve, 18a... Valve seat, 18
b... Valve body, 20... Adjustment shaft, 20a... Screw portion, 21... Gripping body, 23... Chrysanthemum seat surface, 24... Engaging protrusion.
Claims (1)
該油圧シリンダ３の加圧室１７内に連通ずる圧油路１４
に作業機降下速度調整用の絞り弁１８が設けられ、螺進
退操作により絞り弁１８の弁体１８ｂをその弁座１８ａ
に対し接離自在とする調整軸２０が設けられた農用トラ
クタの油圧装置において、上記調整軸２０の螺子部２０
ａが多条螺子に形成され、同調整軸２０に把持体２１が
設けられると共に該把持体２１に軸心を中心とした菊座
面２３が形成され、調整軸２０を回り止めすべく菊座面
２３に弾発押圧しかつ菊座面２３の周方向に相対摺接す
る保合突起２４が固定側に設けられたことを特徴とする
農用トラクタの油圧装置。A hydraulic cylinder 3 for driving the agricultural working machine up and down is provided,
A pressure oil passage 14 communicating with the pressurizing chamber 17 of the hydraulic cylinder 3
A throttle valve 18 for adjusting the descending speed of the work machine is provided, and the valve body 18b of the throttle valve 18 is moved to its valve seat 18a by screwing forward and backward.
In a hydraulic system for an agricultural tractor, which is provided with an adjustment shaft 20 that can freely move toward and away from the screw portion 20 of the adjustment shaft 20,
A is formed in the form of a multi-thread screw, and the adjustment shaft 20 is provided with a grip 21, and the grip 21 is formed with a chrysanthemum seat surface 23 centered on the axis. A hydraulic system for an agricultural tractor, characterized in that a retaining protrusion 24 is provided on the fixed side to press resiliently against the surface 23 and to make relative sliding contact in the circumferential direction of the seat surface 23.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14152681U JPS5845479U (en) | 1981-09-24 | 1981-09-24 | Agricultural tractor hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14152681U JPS5845479U (en) | 1981-09-24 | 1981-09-24 | Agricultural tractor hydraulic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5845479U true JPS5845479U (en) | 1983-03-26 |
Family
ID=29934623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14152681U Pending JPS5845479U (en) | 1981-09-24 | 1981-09-24 | Agricultural tractor hydraulic system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5845479U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6345110U (en) * | 1986-09-11 | 1988-03-26 | ||
| JPH04123612A (en) * | 1990-09-07 | 1992-04-23 | Chen Ruu Chao | Scr control circuit |
-
1981
- 1981-09-24 JP JP14152681U patent/JPS5845479U/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6345110U (en) * | 1986-09-11 | 1988-03-26 | ||
| JPH04123612A (en) * | 1990-09-07 | 1992-04-23 | Chen Ruu Chao | Scr control circuit |
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