JPS62853U

JPS62853U -

Info

Publication number: JPS62853U
Application number: JP1985091235U
Authority: JP
Priority date: 1985-06-17
Filing date: 1985-06-17
Publication date: 1987-01-07

Description

[Brief explanation of the drawing]

図面は、本考案に係る作業用走行車における操
向装置の一実施例を示したものであつて、第１図
はコンバインの前部側面図、第２図は走行ミツシ
ヨン系の部分展開図、第３図はブレーキ機構部の
拡大断面図、第４図はトランスミツシヨンの要部
断面図、第５図は油圧ポンプの取付け構造を示す
部分拡大断面図、第６図は同上拡大断面図、第７
図Ａ，Ｂはキヤツプ体の取付け手順を示す作用説
明図、第８図は第７図ＡのＹ―Ｙ断面図である。図中、２はエンジン、６は走行ミツシヨンケー
ス、１１はセンター軸、１３は操向軸、１８はブ
レーキ機構、２０ａは突起体、２０ｂは螺旋溝、
Ｘは油路である。 The drawings show an embodiment of the steering device for a work vehicle according to the present invention, in which FIG. 1 is a front side view of a combine harvester, FIG. 2 is a partially exploded view of a traveling transmission system, Fig. 3 is an enlarged sectional view of the brake mechanism, Fig. 4 is a sectional view of main parts of the transmission, Fig. 5 is a partially enlarged sectional view showing the mounting structure of the hydraulic pump, Fig. 6 is an enlarged sectional view of the same as above, 7th
Figures A and B are action explanatory diagrams showing the procedure for attaching the cap body, and Figure 8 is a YY cross-sectional view of Figure 7A. In the figure, 2 is an engine, 6 is a traveling transmission case, 11 is a center shaft, 13 is a steering shaft, 18 is a brake mechanism, 20a is a protrusion, 20b is a spiral groove,
X is an oil passage.

Claims

[Scope of utility model registration request]

A traveling transmission system that transmits power from the engine to the axle includes a center shaft that is interlocked and connected to the engine, and a steering shaft that is rotatably fitted to the left and right sides of the center shaft so that the power can be switched on and off. and a brake mechanism for braking each of these steering axes, and the vehicle is steered by selectively braking the steering axes using the brake mechanism. In the device, a lubricating oil passage is formed from the traveling mission case to the brake mechanism via the inner circumferential surface of the steering shaft, and
A protrusion protruding from the brake mechanism side is further exposed on the inner periphery of the steering shaft, and between the protrusion and the steering shaft, lubricating oil is forcibly transferred in response to the rotational movement of the steering shaft. A lubrication structure for a steering device for a work vehicle, characterized in that a spiral groove-shaped guideway is formed to provide a lubrication structure.