JPH0111012Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a waste culm processing device in a combine harvester or the like.

The threshed waste culm is shredded all at once in the direction of the culm, and the shredded waste culm is transferred to one side by a screw conveyor installed below the cutter mechanism and discharged outside the machine. In conventional equipment,
An outward-facing bowl-shaped body was attached to the terminal end of the screw transfer body for the purpose of preventing it from getting stuck in the culm, and the outward-facing opening of this bowl-shaped body was fitted into a circular recess provided in the machine wall. In such a structure, fine dust etc. enters the interior through the gap between the bowl-shaped body and the recess and accumulates, increasing frictional resistance and further damaging the bearing function, thereby reducing the high-speed rotation of the screw transfer body. There were disadvantages such as a problem with the engine and a large loss of horsepower.

The present invention was developed in response to these circumstances, and uses a simple structure to release intervening dust from the bottom to the outside, thereby preventing a decrease in the efficiency of transporting shredded culms by the screw transporter. The aim is to improve the efficiency of shredding culm processing.

To explain the embodiment of the present invention with reference to the drawings, A
is the main body of the combine, B is the desk-type cutter, C is the threshing machine, and D is the running body. As is already known, the desk type cutter B has high and low speed rotating shafts 2 and 3 mounted in parallel on a cutter case 1, with a rotary blade 4 mounted on the high speed rotating shaft 2, and a rotary blade 4 mounted on the high speed rotating shaft 2, and a low speed rotating shaft 3 mounted on the cutter case 1. The feeding bodies 5 are provided in a meshing relationship with each other.

The lower part of the cutter case 1 is open, and the skirt portion 1a of the cutter case has
The screw transfer body 6 rotates at a relatively high speed parallel to the high and low speed rotation shafts 2 and 3 (approximately the same speed as the high speed rotation shaft).
It is mounted on an axis so that

A discharge regulating plate (discharge regulating body) 7 whose upper end is pivotally supported on the inner surface of the front wall of the cutter case 1 is attached to one side of the root side of the screw transfer body 6, that is, on the combine main body A side. Furthermore, on the inner surface of the rear wall of the cutter case 1 corresponding to the discharge regulating plate 7, there is a shredding culm guide plate that is slightly shorter than the discharge regulating plate 7 and has a dogleg-shaped end surface. 8 is provided. The extension of the upper oblique side 8a of the guide plate 8 is the axis 6 of the screw transfer body 6.
It passes through the center or upper side of a.

A tongue piece 9 is provided on the side of the release control plate 7 that is close to the side wall of the cutter case, and a screw rod 10 implanted in this tongue piece 9 is made to protrude outside the cutter case, and a tightening nut (not shown) is attached to the tongue piece 9. and release control plate 7.
is adapted to move toward and away from one side of the screw transporting body 6. Also, this release control plate 7
A concave surface portion 7a approximately concentric with the screw transfer body 6 is formed at the lower part of the screw transfer body 6 to improve the transfer efficiency of the shredded culms.

Further, at the end of the screw transfer body 6 on the side of the discharging culm tip, a discharge plate 6b which is slanted in the axial direction of the shaft 6a of the transfer body is connected to the end of the screw 6c. It is pivotally supported by a bearing 12 of a bearing plate 11 provided inside the side wall of the tar case 1. The bearing 12 has a bearing plate 11 as shown in FIGS.
The shaft 6a is provided in a semicircular recess 11a that faces inward and has an open lower half.
When the opening edge of the outward-facing bowl-shaped body 13 for regulating the side surface provided at the end is inserted into the recess 11a,
The lower part of the bowl-shaped body 13 is exposed and released downward from the lower edge of the bearing plate 11, and the recess 11a and the bowl-shaped body 1
Dust and the like that have entered the interior of the recess are discharged to the outside from the bowl-shaped body and the lower part of the recess.

Therefore, since such a bearing plate 11 is required, the side wall of the skirt portion 1a of the cutter case is inclined outward, and the bearing plate is attached to the inner surface of this inclined side wall, thereby creating a structure in which the above-mentioned effect can be obtained. It is something. In the figure, 14 and 15 are gears, 16 and 17 are pulleys, 18 is a belt, 19 is a tension pulley,
Reference numeral 20 indicates a shredding plate for the culm, a switching plate for collecting the culm, and 21 an opening/closing cover.

Next, the shredding action of the threshed adjusted waste culm will be explained. The waste culm that has been shredded by the desk-type cutter B falls directly below the cutter case 1 and is released into the field. However, the root side of the culm, which has a large amount of shreds, is not suddenly released into the field, and 70 to 80% of the shredded culm is transferred to the tip of the head due to the action of the screw conveyor 6, release control plate 7, and guide plate 8. It is transferred laterally and released sequentially. Therefore, in the field, a shredded culm deposit layer of uniform thickness can be formed, with a thick deposit layer on the root side and no thinning on the tip side. Also, depending on the amount of shredded culm on the root side,
The release control plate 7 is brought into contact with and separated from the screw transfer body 6,
This is to adjust the amount of transfer.

In this way, in the present invention, the lower part of the bowl-shaped body provided at the terminal end of the screw transfer body is exposed and released from the machine wall end, so that the inside of this bowl-shaped body and the connection between the bowl-shaped body and the machine wall recess are avoided. All the dust that has intervened during this process is discharged to the outside from the exposed open part of the bowl-shaped body without stagnation, and therefore, as in the conventional case, the accumulated dust does not apply a load to the rotation of the screw transport body. It has great practical effects, such as constantly applying constant rotation to the screw conveyor without causing damage or deteriorating the function of the bearing body, and improving the processing efficiency of shredding culms.

[Brief explanation of drawings]

Figure 1 is a partially omitted side view, Figure 2 is a partially cutaway front view of the main part, Figure 3 is a side sectional view of the same main part, and Figure 4 is a side view of the main part.
The figure is a partially cutaway front view of the screw conveyor, and FIG. 5 is a partially cutaway side view of the same. B...Desk type cutter, 1...Cutter case, 1a...Skirt portion, 6...Screw transfer body, 6a...Shaft, 11...Bearing plate, 11a...Recess, 12...Bearing, 13 ...bowl-shaped body.

Claims (1)

[Scope of utility model registration request] The threshed waste culm is shredded all at once in the direction of the culm, and the shredded waste culm is transferred to one side by a screw transfer body installed below the cutter mechanism and discharged outside the machine. In the apparatus according to the present invention, an outwardly facing bowl-shaped body close to the machine wall is attached to the terminal end of the screw transfer body, and a lower part of the bowl-shaped body is exposed and released from the lower end of the machine wall. Culm processing equipment.