JPH06217627A - Thresher-loading structure of combine harvester - Google Patents

Abstract

PURPOSE:To reduce the number of constituent parts by engaging a vibration- proof rubber member with a transverse frame in a specific state. CONSTITUTION:The thresher-loading structure of a combine harvester is characterized by making up a transverse frame 10 from an approximately U-shaped cross-sectional channel material and fitting, loading and fixing a vibration-proof rubber member 11 to the transverse frame 10. The relative shapes of the vibration-proof rubber member and the transverse frame are set so that the non-fitted upper part of the vibration-proof rubber member is deformed by a load into a transversely expanded shape where the vibration-proof rubber member has an upward expanded shape press-contacting with the upper surfaces of flange parts 10a, 10b, thereby permitting to effectively control the slippage movement of the thresher in the transverse direction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structural device for supporting a threshing device, which is also a vibration source, on a combine machine body in a vibration-proof manner.

[0002]

2. Description of the Related Art As an anti-vibration structure for a threshing device, an actual Kaihei 4
Front surface 2 as disclosed in Japanese Patent No. 121553;
There is known a technique in which four parts, one on each of the left and right side surfaces of the rear part and the rear part, are supported via a vibration-proof rubber.

[0003]

In the above prior art, by arranging the anti-vibration rubbers, which tend to have a weak transverse shearing force, in an inclined manner, the weight is prevented not only from the top and bottom but also from the front and rear and the left and right without excessive displacement displacement. It adopts a structure to support the heavy threshing equipment of the other. Also, due to the structure of transmitting the engine power to the threshing device by belt transmission, the tension that tries to pull the threshing device to the front with the left and right sides of the threshing device always acts, and the anti-vibration rubber is used to counter the couple. It was configured as a special one containing a spring in an X shape, and the vibration-proof structure was relatively complicated and expensive. An object of the present invention is to make it possible to vibration-proofly support a threshing device with a simple structure or at a low cost by devising a structure including a support structure for mounting a threshing device using a body frame.

[0004]

In order to achieve the above object, the present invention is to mount a threshing device on a machine frame via a vibration-proof member made of an elastic material. It is composed of a channel material having a substantially U-shaped cross-section having a pair of opposed flange portions, and a vibration damping member is fitted and mounted on the machine body frame from above, and in a mounted state where the weight of the threshing device acts. Is characterized in that the relative shape between the machine body frame and the vibration isolating member is set in a state in which the non-fitting portion of the vibration isolating member is laterally expanded and deformed to exhibit an upwardly expanding shape in contact with the upper surface of the flange portion.

[0005]

Describing with reference to FIG. 2, since the lower half portion of the vibration isolator 11 is fitted into the machine body frame 10 made of the channel material, a pair of frames is provided in the direction orthogonal to the longitudinal direction of the machine body frame 10. The rising side surface of the sheet comes into contact with the rubber portion to regulate the excessive lateral displacement. And
As shown in FIG. 2 (a), when the threshing device is actually mounted, the upper half portion is laterally expanded and deformed, and the pair of flange portions 1
0a and 10a come into contact with each other, thereby increasing the load acting area and further strengthening the lateral displacement preventing function. Since the machine body frame has a substantially U-shaped cross-sectional shape having a pair of flange portions, for example, it is possible to prevent the vertical bending moment force from decreasing compared to that made of a square pipe material, and to change its shape. Since the anti-vibration member is supported by utilizing it, a special lateral displacement regulation structure unlike the conventional case is unnecessary. Further, since the length of the vibration isolating member can be freely set in the longitudinal direction of the machine body frame, it is possible to sufficiently reduce the contact area, that is, the contact pressure. Therefore, by appropriately setting the direction of the channel material in the left-right direction or the front-back direction, it is possible to regulate the excessive displacement in the front-back direction and the left-right direction. Further, in the case where the depth of the channel material is increased and the anti-vibration member is fitted to the upper surface thereof to further strengthen the lateral displacement prevention function, the lower surface of the threshing device and the machine body frame may contact each other in the vertical direction. Therefore, the present invention in which the non-fitting portion that laterally expands and displaces is provided in the vibration-proof member is more advantageous in that an effective elastic supporting function is exerted in both lateral and vertical directions.

[0006]

Therefore, the machine body frame is made of a channel material having a substantially U-shaped cross section, and the lower part of the vibration isolating member is fitted and mounted, so that the threshing device is laterally displaced by a simple structure with a small number of constituent parts. It was possible to provide a vibration-proof support structure capable of effectively controlling the vibration.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. A combine is shown in FIG. 4, 1 is a mowing unit, 2 is a crawler traveling device, 3 is a threshing device, 4 is a machine body, and 5 is a cutter for straw treatment. The track frame 7 supporting the plurality of idle wheels 6 and the like of the crawler traveling device 2 and the pair of left and right main frames 8 are connected and integrated by a vertically oriented member 9, and the left and right main frames 8 and 8 are integrated. The threshing device 3 is mounted and supported on two lateral frames 10, 10 which are erected on the left and right across these. Reference numeral 12 is a reinforcing member for compensating the strength of the cantilever portion of the horizontal frame 10 protruding outward from the main frame 8. Next, the mounting support structure will be described in detail.

As shown in FIGS. 1 to 3, the threshing device 3 is
The receiving plate 11a is on the upper surface of the rubber portion 11g, and the supporting plate 1 is on the lower surface.
Anti-vibration member 11 formed by integrally baking 1b
The threshing device 3 is mounted on a horizontal frame (corresponding to a machine body frame) 10 via the. The horizontal frame 10 includes a pair of flange portions 10a, which are opposed to each other outward and forward at the upper end,
10a, which is composed of a channel material having a substantially U-shaped cross-section, the vibration isolating member 11 is fitted and mounted on the transverse frame 10 from above, and the bolt portions fixed to the receiving plate 11a and the supporting plate 11b are attached. The horizontal frame 10 and the bottom plate portion 3a of the threshing device 3 are penetrated and tightened with nuts. Further, at the cantilever projecting portion of the horizontal frame 10 from the main frame 8, the reinforcing member 12 extending over the lower surface of the horizontal frame 10 and the side surface of the main frame 8 is provided.
To secure the strength. In a free state in which the weight of the threshing device 3 does not act, the rubber portion 11g has a vertically long rectangular cross-sectional shape as shown in FIG. 2 (a), and the lower half portion of the rubber portion 11g is exactly in the front-back width of the horizontal frame 10. It is designed to fit. Then, in the mounted state in which the weight of the threshing device 3 acts, as shown in FIG.
In the state where the upper half portion, which is the non-inserted portion, expands and deforms in the front-rear direction due to the weight, and exhibits an upward expanding shape in contact with the upper surfaces of the flange portions 10a, 10a, the relative shape between the horizontal frame 10 and the vibration isolating member 11, And rubber hardness are set. still,
The flange portions 10a, 10a are inclined so that they become higher toward the outside, but this is due to the springback phenomenon due to press molding. In this vibration-proof support structure, the rubber portion 11g and the flange portion 10a at the time of deformation are It has an advantageous effect in improving the pressure contact state of.

Since the width of the rubber portion 11g of the vibration isolating member 11 fitted in the recessed portion of the horizontal frame 10 can be set arbitrarily, the length per unit area can be reduced to reduce the load per unit area for durability. It is easy to make settings such as holding it or softening the rubber hardness to improve the vibration damping property. Further, by doing so, it is possible to suppress the excessive displacement in the left-right direction as well, so that the vibration-proof support of the threshing device 3 can be performed with a simple structure and at a low cost, while exhibiting an effective excessive displacement regulation function in the front-rear direction and the left-right direction. .

It should be noted that although reference numerals are given in the claims for convenience of comparison with the drawings, the present invention is not limited to the structures of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a side view of a main part showing a mounted state of a threshing device.

FIG. 2A is a cross-sectional view showing a vibration isolating member in a free state, and FIG. 2B is a cross sectional view showing the vibration isolating member in a state where the weight of the threshing device acts.

FIG. 3 is a rear view of FIG.

FIG. 4 is a side view of the combine.

[Explanation of symbols]

 3 Threshing device 10 Airframe frame 10a Flange portion 11 Anti-vibration member

Claims (1)

[Claims] 1. When mounting a threshing device (3) on a machine body frame (10) via a vibration-damping member (11) made of an elastic material, the machine body frame (10) has a pair of outwardly facing upper ends. It is composed of a channel material having a substantially U-shaped cross-section having the flange portions (10a) and (10a), and the vibration isolating member (11) is fitted and mounted on the machine body frame (10) from above. In the mounted state where the weight of the threshing device (3) acts, the non-fitting portion of the vibration isolating member (11) is laterally expanded and deformed to cause the flange portion (10).
a) and (10a) are in contact with the upper surface of the body frame (10) and the body frame (10) and the vibration isolation member (1).
Combined threshing device mounting structure with a relative shape set with 1).