JPH0229210U

JPH0229210U -

Info

Publication number: JPH0229210U
Application number: JP10826288U
Authority: JP
Priority date: 1988-08-19
Filing date: 1988-08-19
Publication date: 1990-02-26

Description

[Brief explanation of drawings]

図面は本考案の一実施例を示し、第１図は苗載
台の左右往復横移動機構と油圧伸縮機構との概略
関係図、第２図は乗用田植機の全体側面図、第３
図は油圧回路図、第３図Ａは流量と回転数の関係
図、第４図は苗載台の横移動と切換弁の切換状態
を示す作用説明図、第５図はセンサ軸とバルブア
ームとの関連を示す側面図、第６図は切換弁の切
換範囲を示す作用説明図、第７図は苗載台の横移
動と切換弁の切換位置との関係説明図、第８図は
油圧伸縮機構とスプリングとの関係配置図、第９
図は他例を示す油圧伸縮機構とスプリングとの関
係配置図、第１０図は他例を示す油圧伸縮機構と
スプリングとの関係配置図、第１１図はフロート
と車輪との関係を示す平面配置図である。１……走行機体、３……中央ヒツチ、４……植
付装置、５……支点軸、１０……油圧伸縮機構、
１２……苗載台、１６……ナピアスクリユウ軸、
２０……横送り機構、２１……センサ軸、２２…
…センサピン、２４……スプール、２５……バル
ブアーム、２７……スプール、２８ａ……切換弁
、２８ｂ……切換弁、２９……油圧伸縮機構、２
９ａ……油圧シリンダ、２９ｂ……油圧ピストン
、３０……油圧伸縮機構、３０ａ……油圧シリン
ダ、３０ｂ……油圧ピストン、３１……分流弁、
３２……油圧ポンプ、３４……制御弁、３５……
スプリング、３６……スプリング。 The drawings show an embodiment of the present invention; Fig. 1 is a schematic relationship between the horizontal reciprocating mechanism of the seedling platform and the hydraulic expansion/contraction mechanism; Fig. 2 is an overall side view of the riding rice transplanter;
The figure is a hydraulic circuit diagram, Figure 3A is a diagram of the relationship between flow rate and rotation speed, Figure 4 is an action diagram showing the lateral movement of the seedling stand and the switching state of the switching valve, and Figure 5 is the sensor shaft and valve arm. Fig. 6 is an explanatory diagram showing the switching range of the switching valve, Fig. 7 is an explanatory diagram of the relationship between the lateral movement of the seedling stand and the switching position of the switching valve, and Fig. 8 is an illustration of the hydraulic pressure. Relationship layout diagram between the expansion mechanism and the spring, No. 9
The figure is a diagram showing the relationship between the hydraulic telescoping mechanism and the spring, showing another example. Figure 10 is the relationship layout diagram between the hydraulic telescoping mechanism and the spring, showing another example. Figure 11 is the plane layout showing the relationship between the float and the wheels. It is a diagram. 1... Traveling body, 3... Central hitch, 4... Planting device, 5... Fulcrum shaft, 10... Hydraulic expansion and contraction mechanism,
12... Seedling stand, 16... Napias chestnut shaft,
20...Transverse feed mechanism, 21...Sensor shaft, 22...
...Sensor pin, 24...Spool, 25...Valve arm, 27...Spool, 28a...Switching valve, 28b...Switching valve, 29...Hydraulic telescopic mechanism, 2
9a... Hydraulic cylinder, 29b... Hydraulic piston, 30... Hydraulic telescopic mechanism, 30a... Hydraulic cylinder, 30b... Hydraulic piston, 31... Diversion valve,
32... Hydraulic pump, 34... Control valve, 35...
Spring, 36... Spring.

Claims

[Scope of utility model registration request]

In a paddy field work machine that has a planting device in which the seedling platform moves back and forth horizontally, the left and right spring ends that regulate the left and right tilting of the planting device around the fulcrum axis on the machine body are equipped with left and right hydraulic pressure installed on the machine body. The hydraulic telescoping mechanism is held in the raised position and the lowered position by separate switching valves that are individually locked to the telescoping mechanism and switched in conjunction with the reciprocating lateral movement of the slide shaft provided in the transverse feed mechanism of the seedling stand. A rolling control device for a paddy field working machine, in which the spring on the side where the seedling platform moves laterally and protrudes is energized by a hydraulic expansion/contraction mechanism on one side that is held in a raised position near the moving end.