JPS6216140Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a traveling device for a combine harvester. In other words, in a combine that is equipped with a reaping section at the front of the machine, a threshing section on one side of the machine, and a driving section and a paddy receiving section on the other side, the During mowing, the distance between the ruts of both crawlers is narrowed so as not to interfere with the cutting width, and during normal work, the distance between the ruts is adjusted to suit wet fields or changes in the weight of the paddy receiving section, and the distance between the ruts is adjusted according to the inclination and straightness of the machine. To provide a crawler type traveling device with good running performance by widening the distance between the crawlers, and also to be able to move one crawler well in conjunction with the operation of a side clutch, so that it can be carried out suitably. It is something.

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

Fig. 1 shows a side view of the combine harvester, in which a shelling section B is installed above the machine base 3 supported by both parallel crawlers 1a and 1b, and the front part of the machine body in front of the shelling section B is installed. , each grass dividing board 4, each raising case 5, cutting blade 2, each conveyor 6, etc. are installed. The operating section C is constructed in the same manner as the conventional structure, with a paddy receiving section D consisting of a paddy tank 9, a paddy receiving rod 10, a paddy receiving stand 11, etc. installed behind it.

The left crawler 1a is a fixed crawler located inward on one side of the cutting blade width W of the cutting blade 2, and has both front and rear support cylinders 13a, 1 whose one end is connected and fixed to the track frame 12a of the crawler 1a.
The supporting rods 14a and 14b are arranged in parallel and extend laterally, and the machine base 3 is connected to both the support tubes 13a and 13b, and the support rods 14a and 14b are slidably fitted to both the support tubes 13a and 13b, respectively. Place the tip on the right side crawler 1
The crawlers 1a and 1b are connected to the front and rear parts of the truck frame 12b, respectively.
5a, 15b, each wheel 16, front drive wheel 17
a and 17b respectively, and is installed so that the drive wheel 17a can be driven from within the axle case 19a extending to the left from the transmission case 18 on the front intermediate side, and extendable and retractable from within the axle case 19b extending to the right. The driving wheel 17b is installed and configured so that the driving wheel 17b can be driven by a driving shaft 20 that freely extends to the right side.

In addition, the track frame 1 of the fixed crawler 1a
The base of a double-acting hydraulic cylinder 22 is connected to the connecting rod 21 connected to 2a via a connecting pin 23,
The tip of the piston rod 22a that moves in and out of the hydraulic cylinder 22 is connected to a pin 25 on a connecting rod 24 connected to the track frame 12b of the moving crawler 1b.
When the movable crawler 1b connected via the hydraulic cylinder 22 and moved laterally by the hydraulic cylinder 22 narrows the distance between tracks and moves inward, it moves inward from the other side B of the cutting blade width W. The machine is installed so that when the distance between the ruts is widened and it moves outward, the cutting blade moves outward from the other side of the cutting blade width W. However, as shown in Figure 10, the weight of the machine is When 1b moves inward, the load P2 of the moving crawler 1b becomes larger than the load P1 of the fixed crawler 1a, but becomes equal.
Further, as the moving crawler 1b moves outward as shown by the imaginary line, the load P3 of the moving crawler 1b becomes smaller than the load P1 of the fixed crawler 1a.

Both side clutch levers 27a, 27b are respectively installed in both side clutch grooves 26a, 26b formed on the upper surface of the control column 7, and both crawlers 1a, 27b are operated within the mission case 18 by the both side clutch levers 27a, 27b. The structure is similar to the conventional structure so that the side clutch 1b can be operated, but a hydraulic cylinder 22 is installed on the side of the left side clutch lever 27a that operates the fixed crawler 1a in the direction in which the piston rod 22a extends.
A hydraulic lever 28a is installed to operate the
A piston rod 22 is located on the side of the right side clutch lever 27b that operates the moving crawler 1b side.
A hydraulic lever 28b is installed to operate the hydraulic cylinder 22 in the direction in which the lever a moves in and out, and both hydraulic levers 28a and 28b are rotatably installed, respectively, and can be tilted toward the side clutch levers 27a and 27b. When the side clutch levers 27a, 27
When the side clutch levers 27a and 27b are operated to disengage the clutch, the hydraulic lever 28 is activated.
a and 28b are installed and configured so that they can each be automatically operated.

Therefore, when performing splitting or edge cutting work during combine harvester work, when the hydraulic lever 28b is operated to move the piston rod 22a in and out,
As shown by the solid lines in Figures 2 to 4 and 9, the movable crawler 1b moves inward from the other side of the cutting blade width W, and the distance between the ruts becomes narrower, and the crawler 1b moves the uncut culm. You can work without stepping on anything.

When the hydraulic lever 28a is operated to extend the piston rod 22a, the movable crawler 1b is moved outward from the other side of the cutting blade width W, as shown by the imaginary lines in FIGS. 8 and 9. The distance between the ruts can be widened, and the moving crawler 1b can step on stubble tracks when working in wet fields.
By adjusting the weight of the paddy tank 9, the left-right balance can be corrected, and the vehicle can be driven stably on the road.

In that case, when moving the mobile crawler 1b outward, if the hydraulic lever 28a is tilted toward the side clutch lever 27a, as shown in FIG. 7, when the side clutch lever 27a is operated to disengage the clutch, the simultaneous When the lever 28a is operated, the side clutch of the stationary crawler 1a is disengaged and the movable crawler 1b is moved outward. Similarly, when the side clutch lever 27b is operated, the hydraulic lever 28b is disengaged.
The mobile crawler 1 can be operated at the same time.
By disengaging the side clutch b and moving it inward, the distance between the tracks can be adjusted.

Additionally, as the mobile crawler 1b moves,
As explained in FIG. 10, both crawlers 1a,
The load of the weight of the machine applied to 1b can be changed, and the inclination of the machine can be corrected and corrections can be made to ensure straightness.

In addition, with the mobile crawler 1b inside,
It is also possible to configure the vehicle to be equipped with a restraining device that prevents the vehicle from changing speed.

As described above, the present invention provides a combine harvester in which a reaping section is installed at the front of the machine body, a shelling section is installed on one side of the machine body, and a driving section and a paddy receiving section are installed on the other side. One of the two crawlers supporting the machine body is positioned inward on one side of the cutting blade width as a fixed crawler, and the other crawler is a movable crawler so that it can be positioned inward and outward on the other side of the cutting blade width. On the sides of both side clutch levers, which are installed so that they can be moved and adjusted in the lateral direction relative to the fixed crawler, and which operate the side clutches of both crawlers respectively,
Since the hydraulic levers for telescopically operating the hydraulic cylinders for moving the moving crawler are disposed in such a manner that they can be freely engaged and disengaged from both side clutch levers, the moving crawler can be moved within the width of the cutting blade during so-called intermediate cutting or edge cutting. The distance between the ruts can be narrowed so that the mowing width is not affected by the movement, and the moving crawler does not step on uncut culms.
Widen the moving crawler to widen the distance between ruts By widening the distance between ruts, it is possible to respond to changes in the weight of the paddy receiving area during wet fields, and to compensate for the inclination and straightness of the machine. If the lever is engaged with the side clutch lever, when the side clutch lever is operated to disengage the side clutch of the crawler, the moving crawler will be moved in conjunction with the side clutch lever, allowing the moving operation to be carried out in good condition. It has the advantage of being able to be carried out suitably.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; Fig. 1 is a side view of the combine harvester, Fig. 2 is a front view thereof, Fig. 3 is a plan view of the main parts, and Fig. 4 is a rear view of a part of the fuselage. Explanatory diagram, FIG. 5 is an enlarged view of a part of FIG. 3, FIG. 6 is a sectional view of FIG. 5, FIG. 7 is an explanation diagram of the operation of FIG. FIG. 9 is an explanatory diagram showing a plan view, and FIG. 10 is an explanatory diagram showing a rear view. A...Reaping part, B...Shelling part, C...Driving part,
D...Paddy receiving part, 1a...Fixed crawler, 1b...
Moving crawler, W...Mowing blade width, 2...Mowing blade, 27
a, 27b...Side clutch lever, 22...
Hydraulic cylinder, 28a, 28b...hydraulic lever.

Claims (1)

[Scope of utility model registration request] In a combine harvester having a harvesting section mounted at the front of the body, a threshing section mounted on one side of the body, and a driving section and rice receiving section mounted on the other side, one of the two crawlers supporting the body is positioned on the inside of one side of the cutting blade width as a fixed crawler, and the other crawler is mounted as a movable crawler so that it can be moved laterally relative to the fixed crawler so as to be positioned on the inside and outside of the other side of the cutting blade width, and a traveling device characterized in that the traveling device is configured by having two hydraulic levers that operate the hydraulic cylinders for moving the movable crawler be freely engaged and disengaged from the side clutch levers on the sides of the two side clutch levers that operate the side clutches of the two crawlers, respectively.