JPH078182B2 - Combine harvesting device - Google Patents

Description

TECHNICAL FIELD The present invention relates to a combine harvesting device.

[Conventional technology and problems]

In the combine harvester, threshed culms that have been mowed and threshed are dropped and accumulated on a collecting culvert that is installed in the rearward direction with respect to the rotation axis that horizontally mounts the combine on the rear part, and this accumulated culm is set. When the weight is reached,
The accumulated culm is discharged downward into the field by rotating the culm downwards against the elastic force of the spring that is installed elastically between the front end of the rocking plate and the combine body, which is opposite to the culm. In the combine harvester device described above, one end of the spring is fixedly connected to the front end of the rocking plate, so that when the amount of culm accumulated in the collector gradually approaches the set weight, The culm gradually moves downward against the elasticity. This results in that the elasticity of the spring is increased in proportion to the downward rotation of the culm, and the slow downward rotation of the culm causes
The culm is not released collectively in the field, but is scattered over a wide area. Therefore, there is a problem that a lot of labor and time are required for the post-treatment of the culm discharged to the field.

[Object of the Invention]

The present invention has been made in view of the above circumstances, and solves the problems of the conventional technology with a simple yet rational configuration, and when the culm is rotated downward by a certain angle, the elasticity of the spring is changed all at once. The purpose of the invention is to provide a culm device that weakens and swivels the culm rapidly downward to release the soul of the culm and saves labor without post-treatment.

[Structure of Invention]

The structure for solving the problems of the prior art is a culm in which a threshing culm, which is obtained by cutting and threshing grain culms in a combine harvester, is provided rearward with respect to a rotating shaft horizontally mounted on the rear part of the combine harvester. When the accumulated culm is dropped and accumulated on the body and reaches the set weight, it is elastically mounted between the front end of the rocking plate and the combine body which is provided in the front direction opposite to the culm body with respect to the rotating shaft. Rotate the culm downwards against the elasticity of the spring
In the device for discharging the accumulated culm to the field, the rotation shaft side angle θ at which the longitudinal axis of the rocking plate intersects with the axial direction of the spring is formed to be an obtuse angle, and the rocking plate It is characterized in that the connection point of the ridge with respect to the front end portion can be moved and returned in the direction of the rotation axis.

〔Example〕

 The details of the embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a side view, FIG. 2 is a perspective view of the main structure, FIG. 3 is a side view of the same as above, and FIG. 4 is an explanatory view showing the correspondence of the unloaded culm, swing plate, and spring. FIG. 5 is an explanatory diagram showing the correspondence at the time of the set load.

In FIG. 1, A is a combine body, B is a mowing unit, C is an automatic threshing device, D is a running body, and E is a culm device.

Next, the configuration of the culm device E will be described.

1 is a left and right receiving bracket provided on the rear side wall of the combine body A
It is a rotary shaft that is horizontally mounted between 2 and 3, and the rotary shaft 1 has a culm 4 that maintains a substantially horizontal posture in a no-load state.
Is attached to the combine body A in the rearward direction.

Further, a rear end of the rocking plate 5 is attached to one end of the rotating shaft 1 in a forward direction opposite to the collecting body 4 so as to maintain a substantially horizontal posture when no load is applied. A guide slot 6 is formed in the rocking plate 5 along the longitudinal direction of the rocking plate 5, and the guide slot 6 has an upward U-shaped rocking, as is apparent from FIG. A trochanter 8 pivotally supported between vertical pieces of the moving frame 7 is slidably and rollably inserted.

Reference numeral 9 denotes a ridge whose upper end is connected to the lower surface of the sliding frame 7, and a lower end of the ridge 9 has a plurality of elastic members for setting and adjusting elasticity, specifically, the amount of culms accumulated on the culm 4. The adjusting hole (10a) is connected to the upper end of the spring receiver (10). Then, an arbitrary adjusting hole 10a formed in the spring receiver 10 is fitted and engaged with the side surface of the combine body A, in this embodiment, the metal fitting receiver 11 attached to the side surface of the receiving metal fitting 3.

And, as is clear from FIG. 4, in particular, the angle θ on the side of the rotating shaft 1 at which the longitudinal axis a of the rocking plate 5 and the axial direction b of the spring 9 intersect is an obtuse angle. This angle θ
Is not specified because it varies depending on the angle of the culm 4 when there is no load, but is preferably about 100 ° to 105 °. In detail, the culms of the set weight are accumulated on the culm 4, and when the culm 4 is rotated downward so that the accumulated culms do not fall, the angle θ becomes smaller than 90 °,
The angle θ is selected so that the trochanter 8 in the guide elongated hole 6 rapidly moves in the direction of the rotation axis 1. The culm device E is configured as described above.

In the figure, 12 is a culm transfer body that supplies the culms that have been threshed by the automatic threshing device C to the culm device E, and 13 is a culm body that prevents the rotation shaft 1 from excessively rotating. A stopper member for holding 4 in a predetermined posture, which is fixed to the rotary shaft 1.

[Action]

Next, the operation will be described. The grain culms harvested by the harvesting unit B of the combine body A are sent to the automatic threshing device C,
Threshing is performed here. The threshed culm is dropped and supplied from the culm carrier 12 onto the culm body 4 in a substantially horizontal posture.

When the set weight of the culms is collected on the culm 4, the weight causes the culm 4 to rotate downward to c in FIGS. 3 and 5. This angle is an angle at which the accumulated culm on the culm 4 does not spill. When the collector 4 is rotated downward to the position c, the angle θ between the longitudinal axis a of the oscillating plate 5 and the axial direction b of the spring 9 is smaller than 90 °, as is apparent from FIG. At this point, the trochanter 8 slides using the guide elongated hole 6 as a guide, and the trochanter 8 approaches the rotating shaft 1. This results in a sudden weakening of the elasticity of the strip 9, and the culm 4 is swung downward to the position of d, leaving the accumulated culm in the field in the shape of a group. The culm body 4 that has discharged the accumulated culm returns to the old state, that is, the posture shown in FIG. 4 due to the elasticity of the spring 9. This operation is continuously repeated.

〔effect〕

As described above, according to the present invention, the following effects can be obtained.

(A) The threshing-treated culms are accumulated on the culm, and when the accumulated culm exceeds the set weight, the accumulated culm is rotated downward against the ridges, and the accumulated culms are placed in the field. (B) In particular, in the present invention, the rotation shaft side angle θ at which the longitudinal axis of the oscillating plate intersects the axial direction of the spring is made obtuse and the oscillating plate of the oscillating plate is allowed to stand. Since the connection rolling of the spring with respect to the front end can be moved and returned in the direction of the rotation axis, when the accumulated culm reaches the set weight, the angle θ is generated by the initial action of the downwardly rotating culm. Is smaller than 90 °, and the connecting point between the rocking plate and the spring is brought closer to the direction of the rotation axis to sharply reduce the elasticity of the spring, and this action causes the collector to swivel downward at once and accumulate and discharge. The culm can be left in the field in the form of a group.

(C) By leaving the team spirit like this, labor saving of the culm disposal work in the field can be achieved as compared with the conventional technique.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view, FIG. 2 is a perspective view of essential parts, FIG. 3 is a side view of the same as above, and FIG. 4 is an unloaded culm, a rocking plate and a spring. FIG. 5 is an explanatory diagram showing the correspondence, and FIG. 5 is an explanatory diagram showing the correspondence at the set load. A: Combine main body, B: Mowing unit, C: Automatic threshing device, D: Running body, E: Collecting device, 1 ... Rotating shaft, 4 ... Collecting device, 5 ... Shaking Moving plate, 6 …… Slot for guide, 7 …… Sliding frame, 8 …… Rotator, 9 …… Spring, 10 …… Spring holder, 11 …… Bracket holder.

Claims (1)

[Claims] (A) In a combine harvester, threshed culms obtained by cutting and threshing grain culms are dropped and accumulated on a culm body provided rearward with respect to a rotating shaft horizontally mounted on the rear part of the combine. Then, when this accumulated culm reaches the set weight,
Rotate the culm downwards against the elastic force of the spring that is elastically mounted between the front end of the swinging plate provided in the front direction opposite to the culm and the combine main body with respect to the above-mentioned rotation axis, and collect and discharge the culm. In a device for discharging culms to a field, (b) the rotation axis side angle θ at which the longitudinal axis of the rocking plate and the axial direction of the spring intersect is formed to be obtuse, and (c) the above Connect the connecting point of the spring to the front end of the oscillating plate,
A combine harvesting device characterized in that it can move in the direction of a rotation axis and can return.