JPS63202316A - Rolling apparatus of combine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] Since the present invention is such that the left and right crawler type traveling devices are attached to the traveling body so that they can be raised and lowered independently,
Compared to the one disclosed in Patent No. 3.160.221, in which the left and right traveling devices are integrally swung together as a seesaw set around the longitudinal axis at the center of the fuselage, the tilt of the fuselage is made the same. However, the ground reference height (for example, the average height of the left and right running gears or the height of one of the left and right running gears) can be set arbitrarily, and the controllability is high to the extent that the height can be changed, so that the running gear on one side sinks. The present invention relates to a rolling device for a combine harvester, which has the feature of reducing the degree of contact with the ground when the vehicle is in use.

[Conventional technology]

Conventionally, in the rolling device of this type of combine harvester, the traveling device was raised and lowered integrally (for example,
6-30164).

[Problem that the invention seeks to solve]

In this way, when the traveling gear is raised and lowered relative to the traveling aircraft body, the transmission mechanism that connects the engine located on the aircraft body side and the input part (input sprocket) on the traveling gear side that is raised and lowered must be equipped with a flexible mechanism that corresponds to the raising and lowering of the traveling gear. must be provided,
The transmission mechanism was complicated. Said publication (Utility Model Publication No. 1983-
30164), a relatively rotatable transmission case was provided between the transmission case and the traveling device to provide flexibility.

The purpose of the present invention is to modify the traveling gear so that it can be raised and lowered, but the transmission system from the mission case to the traveling gear can be simplified, and the structure adopted for this purpose also prevents the aircraft from losing its balance. The point is to offer less.

[Means for solving problems]

The characteristic structure of the present invention is as follows: (1) A plurality of wheels that contact the ground contact part of the crawler belt from above are divided into two into a pair of front and rear movable frames that can swing up and down about the horizontal axis with respect to the fixed frame. ■ The height of the traveling device relative to the machine can be changed independently by raising and lowering the movable frame in the same vertical direction; The points are configured to be close to each other or to be separated from each other, and their electrodynamic effects are as follows.

[For production]

■ By attaching the rollers to the movable frame and raising and lowering them, the relative height between the crawler belt grounding part and the traveling body can be changed, so the traveling body can be rolled and lowered in the same way as when the entire traveling device can be raised and lowered independently. can be activated.

(b) Moreover, from the characteristic configurations (1) and (2), as shown in FIG. Front-rear center position (P) at 8A)
There is no change in the relative position between the aircraft and the traveling body (5), and loss of balance in the longitudinal direction of the body can be suppressed.

〔Effect of the invention〕

According to operation (2), the driving pulley of the traveling device belongs to the fixed side, so the transmission case from the transmission case to this pulley can be of a fixed type, and the structure is simple. In addition, from the effect ◎, by configuring the movable frame to move in a compound manner that moves back and forth as well as lifting and lowering, although there is an imbalance in the width direction of the aircraft due to rolling, it is possible to suppress the imbalance in the longitudinal direction of the aircraft. , the overall amount of imbalance can be minimized.

However, a configuration in which the elevating cylinder is moved up and down linearly with the extension direction of the movable frame aligned with the elevating direction of the movable frame may be considered as having the same effect, but this is not preferable because the elevating load acts directly on the elevating cylinder. In the invention, since the lifting load is applied to the lifting cylinder via the link mechanism, the bending moment etc. can be absorbed by the link mechanism, and only the axial load is applied to the lifting cylinder.

〔Example〕

As shown in Figure 4, a pulling device (1), a reaping device (2)
), etc., and the threshing device (4).
is attached to the front end of a traveling machine (5) equipped with the machine so as to be able to swing up and down, and this traveling machine (5) is supported by a pair of left and right crawler traveling devices (6), (6) to form a combine harvester capable of running for reaping. It has been done.

Next, the structure of the crawler traveling device (6) having only one side will be explained. As shown in Figures 2 and 3, a crawler belt (8
) The drive sprocket (9) is rotatably mounted, and the transmission cases (11), (11) are attached to the drive sprocket (9) from the side surface of the mission case (10).
The transmission structure is constructed by projecting out the ends and connecting them for transmission.

A pair of movable frames (12A) and (12B) divided into front and rear parts are arranged laterally and outwardly of the fixed frame (7). This movable frame (12^), (
A plurality of rolling wheels (13) are attached to the crawler belt (12B) and contact the grounding portion (8A) of the crawler belt (8) from above to form a grounding rolling wheel (13). The front movable frame (12A) and the rear movable frame (12B) are fitted and held at their respective rear front ends so as to be able to slide back and forth, and are supported by the fixed frame (7) so as to be rotatable laterally. Two pairs of upper horizontal shafts (14A), (14
B), (14C), (140), lower swing arms (15A), (15
B), (15C).

(150) is attached so as to be able to operate at rest, and the swinging arms (15A), (15B), (15C), (
150) Two pairs of lower horizontal shafts (19A
), (19B), (19G), (190)
Attach the front and rear movable frame (12A) to this lower horizontal axis.
) and (12B) are mounted so that they can swing relative to each other.

And the upper horizontal axis (14A), (14B)
, (14C).

Upper swing arm (16A) is attached to the inner end protrusion of (14D).
.

(16B), (16G), and (160) are installed so that they can be rested, and the upper swing arm (16A)
, (16B), (16C).

(160) Connect the front and rear pair of comrades at the opening/throat (18A)
, (18B), and these upper swinging arms (16A).

(16G) are connected with lifting cylinders for front and rear rolling, respectively.

Therefore, as shown in Fig. 1, the movable frames (12A) and (12B) are moved from the solid line state to the fixed frame (
7), as shown in the imaginary line, the front and rear rolling lifting cylinders (17), (17
) is synchronized and extended, the upper swing arm (15
A) and (15A), the movable frame (
12A) and (12B) swing downward and approach each other in the front-rear direction.

[Another example]

(2) The movable frames (12A) and (12B) may be configured to move away from each other in the front-back direction as they move downward.

O The configuration in which the movable frames (12A) and (12B) are brought closer to or separated from each other in the front and back direction as they move up and down may be an X-Y table type combined with linear movement, instead of the swing arm type described above. .

As shown in FIG. 5, a vertically swinging arm (16).

(15) are front and rear movable frames (12A), (12B)
) may be provided one by one.

[Brief explanation of the drawing]

The drawings show an embodiment of the rolling device for a combine harvester according to the present invention, and FIG. 1 is a principle diagram showing the lifting and lowering operation of the traveling device;
2 is a partially cutaway plan view of the traveling device, FIG. 3 is a side view of the traveling device, FIG. 4 is a schematic side view of the combine harvester, and FIG. 5 is a side view showing another embodiment of the traveling device. (6)...Travelling device, (7)...Fixed frame, (8)...Crawler belt, (8A
)...Grounding part, (12A)...Front movable frame, (12B)...Rear movable frame, (
13) ...Rotary wheel.

Claims (1)

[Claims] a pair of front and rear movable frames (12A) that are capable of moving a plurality of rolling wheels (13) that contact the ground contact portion (8A) of the crawler belt (8) from above relative to the fixed frame (7);
(12B), and by moving these movable frames (12A) and (12B) up and down in the same direction, the height of the traveling device (6) relative to the aircraft can be changed independently. At the same time, the rolling device of the combine is configured to approach or separate from each other in the front and rear direction in conjunction with this lifting and lowering operation.