JPS6119640Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a harvesting machine for harvesting crops such as maize, which improves the backward flow of the harvested crops.
The purpose is to prevent variations in dimensions during shredding.

In a flywheel-type maize harvester, the maize is harvested with a cutting blade, then transported backwards while being knocked over by a feeding device equipped with a pair of left and right feeding rollers, and fed into the casing from the supply port, and as the flywheel rotates. The maize is finely shredded between a movable blade and a fixed blade, and is sent along the inner surface of the casing to a blow-up chute by a blow-up blade, from which it is loaded into a companion container or the like. In this type of maize harvester, the supply port was located on the opposite side of the blow-off chute with respect to the rotation axis of the flywheel, so the distance from cutting the maize to the blow-up chute was long, and the There was a problem that it would get clogged. In addition, since the supply port was aligned with the center of the feeding device, the maize may be tilted diagonally behind the feeding device, resulting in variations in shredded size or poor cutting. There was also the problem that it caused

The present invention is designed to solve these conventional problems, and its features are as follows:
A feeder equipped with a pair of left and right feed rollers sends crops such as maize harvested with a reaping blade backwards while knocking them down, and feeds them into the casing from the supply port of the casing. In a harvester for crops such as maize that shreds crops between the blade and a fixed blade on the fixed side, the supply port is placed below the rotation axis of the flywheel and the flywheel rotates relative to the center of the feed device. The movable blade and the fixed blade are arranged eccentrically on the opposite side, and the movable blade and the fixed blade are configured so that the radially inner side cuts first.

Hereinafter, the present invention will be described in detail with reference to the illustrated embodiment. FIGS. 1 to 5 illustrate a muzzle-mounted maize harvester that is attached to the front of a tractor via a three-point linkage mechanism. This maize harvester includes a divider 1, a guide rod 2, a feeding device 3, a casing 4, a flywheel 5, a blow-up chute 6, a mounting frame 7, and the like. There are a pair of left and right dividers 1, which are attached to the casing 4 side via side plates 8 and the like, and a feeding device 3 is disposed at the rear end portion of the divider 1. The feed device 3 has a pair of left and right feed rollers 10 supported by a vertical shaft 9, and a star-shaped cutting blade 11 is provided at the lower end of each feed roller 10.
is attached to cut the maize A near the root. Each vertical shaft 9 is rotatably supported by a transmission case 12 and a bearing member 13 installed on the front surface of the casing 4, and is connected to the rotary shaft 1 of the flywheel 5 via a transmission mechanism 14 in the transmission case 12.
5, they are driven in opposite directions to transport the harvested maize A backward while knocking it down. Note that a feed blade 16 is provided on the outer peripheral surface of the feed roller 10. The transmission case 12 has an opening/closing lid 17 on the top.
has. Casing 4 is lower casing 18
and an upper casing 20 pivotally connected to the upper casing 20 via a hinge 19 so as to be freely openable and closable, and a blow-up chute 6 is connected to the upper casing 20. A rotating shaft 15 is mounted on the front wall of the lower casing 18.
A square hole-shaped supply port 21 is formed below and slightly eccentrically to the opposite side of the rotation direction of the flywheel 5 with respect to the center of the feeding device 3, and along the edge of the supply port 21. An L-shaped fixed blade 22 is attached to the inner surface. Of course, this fixed blade 22
is provided across the rotation direction side and the lower edge side of the flywheel 5. The flywheel 5 is rotatably supported in the lower casing 18 by a rotating shaft 15, and a movable blade 23 is attached to the front surface of the flywheel 5, and a blowing blade 24 is attached to the flywheel 5.
are provided radially protruding from the outer periphery. The movable blade 23 is used to shred the maize A supplied into the casing 4 from the supply port 21 between the movable blade 23 and the fixed blade 22.
5 by bolts 26, and the movable blade 23 is inclined by a predetermined angle θ so that the radially outer side lags behind the rotational direction of the flywheel 5. Therefore, the movable blade 23 cuts the maize A from the radially inward side first between the movable blade 23 and the vertical portion of the fixed blade 22. The rotating shaft 15 is connected to the winding transmission mechanism 2
7, the input shaft 28 is connected to the front PTO of the tractor through a universal joint shaft.
It is detachably connected to the shaft. The mounting frame 7 is mounted on the rear surface of the lower casing 18 so as to be slightly eccentric in the lateral direction, and the mounting frame 7 is detachable from the front three-point link mechanism 29 of the tractor.

In the above configuration, when harvesting maize A, the divider 1 guides the maize A growing in the field,
After pushing the maize A forward with the guide rod 2, the pair of cutting blades 11 rotating in the direction of the arrow reap the maize A from the base, and while the maize A that has been cut is turned horizontally by the rotation of the pair of feed rollers 10. It is sent to the rear and supplied into the casing 4 through the supply port 21. On the other hand, since the flywheel 5 is rotating in the direction of the arrow inside the casing 4, the maize A is finely shredded by the movable blade 23 and the fixed blade 22 as the flywheel 5 rotates. In this case, since the supply port 21 is slightly eccentric to the opposite side of the rotation direction of the flywheel 5 with respect to the center of the feeding device 3, the maize A will be fed approximately at right angles to the casing 4. Maize A at the supply port 21
Compared to the case where the movable blade 23 is inclined diagonally,
The maize A is cut very well by the fixed blade 22. Further, since the movable blade 23 is inclined by the angle θ, the portion that is difficult to cut is finally cut on the outermost side, and the cut can be reliably made at the location where the torque is greatest. The cut pieces of maize A are transferred to the casing 4 by the blowing blades 24 of the flywheel 5.
The maize A is fed along the inner circumferential surface of the maize A to the blow-up chute 6, and is loaded from the blow-up chute 6 into the accompanying container. Therefore, the distance from the shredding position to the blow-up chute 6 is shortened accordingly, and clogging with shredded pieces can be prevented.

In the above embodiment, a machine exclusively for maize was used as an example, but as shown in FIG. If the mounting bracket 30 is detachably attached to the mounting base 32 on the casing 4 side using bolts 31, the casing 4 side can also be used for harvesting other crops.

As an example, FIGS. 7 to 9 show a modification for use with short crops such as Italian B.
This reaping device 33 includes a pair of left and right side frames 34, a transmission case 36 containing a bevel gear mechanism 35,
It is equipped with a flail-type rotary blade 37, a cover 38 that covers the upper part of the rotary blade 37, and a winding transmission mechanism 39 that interlocks the bevel gear mechanism 35 and the rotary blade 37. bolt 4 to the mounting base 32 on the casing 4 side.
1, it is detachably attached. The bevel gear mechanism 35 is configured such that the bevel gear 43 engages with the bevel pinion 42 for driving the feed roller in a detachable manner when installed. Therefore, when this reaping device 33 is attached to the casing 4, the rotary blade 37 rotates in the direction of the arrow to reap the Italian B etc., and feed it into the casing 4 through the supply port 21 and shred it. Therefore, it is possible to use the structure of the main part of the maize harvester as it is, and its versatility is significantly improved.

In the embodiment, the movable blade 23 is provided inclined at an angle θ, but this is determined by the relative relationship with the fixed blade 22. For example, the movable blade 23 is provided radially, and the fixed blade 22 is tilted vertically. The direction part is the angle θ
It may also be tilted in the opposite direction. In short, movable blade 2
3 and the fixed blade 22, it is sufficient to cut the maize A from the radially inner side first. Further, in the embodiment, a front-mounted type is illustrated, but a rear-mounted type mounted on the rear of the tractor body can be similarly implemented. However, in the case of a rear-mounted type, the rear PTO
In order to extract power from the shaft, the rotating shaft 15 and the input shaft 2
It is necessary to provide a reversing mechanism in the middle of the transmission system, such as between 8 and 8, to change the direction of rotation.

In the present invention, since the supply port is provided eccentrically to the opposite side of the flywheel rotation direction with respect to the center of the feeding device, the crop can be fed almost straight, and the crop can be shredded uniformly and well. Furthermore, since the supply port is located below the rotation axis of the flywheel, the distance to the blow-up chute is shortened, and clogging with small fragments can be prevented. Moreover, since the movable blade and fixed blade are designed to cut first on the radially inner side, difficult-to-cut areas are finally cut on the radially outer side, resulting in a very effective cutting effect on crops. In good condition.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional side view showing the first embodiment of the present invention, Fig. 2 is a sectional plan view thereof, Fig. 3 is a longitudinal sectional front view thereof, Fig. 4 is a configuration diagram of the power system, and Fig. 5 is FIG. 6 is a cross-sectional plan view showing the second embodiment, FIG. 7 is a vertical cross-sectional side view showing the third embodiment, and FIG.
The figure is a cross-sectional plan view of the same, and FIG. 9 is a vertical cross-sectional front view of the same. 3... Feeding device, 4... Casing, 5... Flywheel, 10... Feeding roller, 11... Reaping blade, 21... Supply port, 22... Fixed blade, 23...
...Movable blade, 33...Reaping device.

Claims (1)

[Scope of utility model registration request] A feeder equipped with a pair of left and right feed rollers sends crops such as maize harvested with a reaping blade backwards while knocking them down, and feeds them into the casing from the supply port of the casing. In a harvester for crops such as maize that shreds crops between the blade and a fixed blade on the fixed side, the supply port is placed below the rotation axis of the flywheel and the flywheel rotates relative to the center of the feed device. A harvester for harvesting crops such as maize, etc., characterized in that the movable blade and the fixed blade are arranged eccentrically on the opposite side, and the movable blade and the fixed blade are configured such that the radially inner side cuts first.