JPS591003Y2 - Crawler-type traveling device in the traveling part of combine harvesters, etc. - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a crawler-type traveling device in a traveling section of a combine harvester or the like.

In other words, in the running section of a combine harvester, etc., in which a crawler is wound around the drive wheels and idle wheels at both ends, the ground contact side of the crawler is supported by each roller, ensuring sufficient ground pressure and allowing good running. To provide a machine body that can maintain a horizontal attitude when traveling over a protruding obstacle, can run stably, has a simple structure, and can be suitably implemented.

Next, the embodiment shown in the drawings will be described.

FIG. 1 shows a side view of the combine harvester, in which a threshing section 9 is mounted on a machine stand 13 supported by both crawlers 3 on both sides, and a cutter 1 is mounted behind the rear straw discharging section 9a of the threshing section 9.
0 is installed, a reaping transport section 11 is installed in front of the threshing section 9, and a boarding control section and a paddy receiving section are installed on the right side of the machine body, and the structure is similar to the conventional type.

Both crawlers 3 wrap around the front upper driving wheel 1 and the rear idler wheel 2, but the driving wheel 1 is connected to the transmission case 1.
A rack frame 8 made of a pipe is installed so as to be driven from the machine base 13 via support frames 14, 14, and is formed so that both ends 8a and 8b extend downwardly. A support rod 16 of the idler wheel 2 extends from a support 15 fixed to the rear of the frame 8, and the adjustment screw 1
7, so that it can be adjusted.

Further, the support shaft 4a of the grounding side rolling wheel 4 approaching the drive wheel 1
is attached to the end 8a of the truck frame 8, and the support shaft 5a of the ground contact side rolling wheel 5 approaching the idler wheel 2 is attached to the truck frame 8.
The two rollers 4 and 5 are fixed to the end 8b of the aircraft, and are arranged so that the center of gravity G of the entire aircraft is located within the distance between the two wheels 4 and 5. ring 6,
6' is provided as a support shaft 6a for both wheels 6, 6'.

Both arms 7.7' with 6a' attached to the tips thereof are tilted forward, and the shaft rods 1B, 1B fixed to the upper part of both arms 7.7' are attached to the upper horizontal part of the truck frame B. Torsion bars 20 are rotatably constructed and extend to both sides from support rods 19 and 19 installed at the bottom of the machine base 13.
．． The shaft rods 18.18 are respectively connected to the torsion bars 20.20, and by the support of the torsion bars 20.20, the rolling wheels 6.6' are biased toward the ground contact side, and both the rolling wheels 6, 6' apply an external force upward. When the torsion bar 20 is gripped, the arms 7, 7
′ can be rotated and raised upward.

In addition, in the figure, 21 indicates a road, 22 indicates a track, and 23 indicates a treadle.

However, when working in the field or driving on the road with a combine, torsion bars 20. ．． 20 makes both wheels 6,6
1 and 2, the crawler 3 can be supported by each of the wheels 4.6, 6', and 5, and the crawler 3 can be moved while maintaining the ground pressure.

In addition, when moving over the ridge 21 when moving from one field to another, the crawler 3 portion between the two rotating shafts 4 and 5 should be moved over the ridge 21.
2, the wheels 6, 6' are pushed up against the pressure everywhere, and as shown in Figure 5, the crawler 3 section is depressed, and the swing of the torsion bar 20.2G causes the arms 7, 1' to be pushed up. rotates and the wheels 6 and 6' are pushed upwards, and when they cross over the ridge 21, the torsion bar 20.2G
As a result, the wheels 6, 6' are pressed toward the ground side and return to their normal state.

Therefore, the 3rd part of the front roller 4 side is the ridge 21.
Since it is possible to immediately lower the machine to a low field side while crossing the ground, the machine can immediately return to a horizontal position, and since the position of the wheels 6 and 6' becomes the center of gravity of the machine, stability can be ensured. .

In addition, when loading and unloading the combine harvester onto the truck 22 as shown in FIG. The middle part of the crawler 3 on the ground side becomes depressed,
The aircraft immediately returns to a horizontal position, and since this position is the center of gravity of the aircraft, stability can be ensured.

In this way, the present invention has a driving wheel 1 and an idler wheel 2 at both ends.
In a traveling section of a combine harvester or the like, in which a crawler 3 is hung around and configured, the ground-contact side intermediate parts 4 and 5 that approach the two wheels 1 and 2, respectively, are mounted on a truck frame 8, and the two wheels 4 and 5 are mounted within a distance of 50. At least two wheels 6, 6' disposed below the center of gravity of the aircraft are each mounted on an arm 7.7', and each inclined arm 7.7' is attached to a wheel 6, 6'. The track frame 6 is rotatably mounted on the track frame 6 with pressure biased so as to be pressed toward the ground contact side, so the crawler is 3 to ensure sufficient ground pressure to ensure good running, and when the crawler 3 climbs over a protruding obstacle, the intermediate part of the ground contact side of the crawler 3 is dented and the aircraft returns to a horizontal position. In addition, this part becomes the center of gravity of the aircraft and allows for stable running.
．． Since it is supported by 7' and can be moved up and down, it can be moved up and down smoothly, and has the feature that it can be easily implemented with a simple structure.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; FIG. 1 is a side view of the combine harvester, FIG. 21 is a side view of the main parts, FIG. 3 is a sectional view of a part of FIG. 2, and FIG. 4 is a side view of the combine harvester. FIG. 5 is an explanatory view of the operation, and FIG. 6 is an explanatory view of another operation. 1... Drive wheel, 2... Idler wheel, 3... Crawler,
4゜5... Rolling wheel, 7,7'... Arm, 8... Truck frame, 6.6'... Rolling wheel.

Claims (1)

[Scope of utility model registration request] In a running section of a combine harvester or the like in which a crawler 3 is wound around a drive wheel 1 and an idler wheel 2 on both ends, ground-contact side rollers 4 and 5 that approach the two wheels 1 and 2, respectively, are mounted on a truck frame 8, At least two wheels arranged below the center of gravity of the aircraft within the distance between the wheels 4 and 5.
Each wheel 6°6' is mounted on an arm 7.7',
Crawler-type traveling characterized in that each of the inclined arms 7, 7' is rotatably installed on the truck frame 8 with pressure biased so that the wheels 6, 6' are pressed toward the ground contact side. Device.