JPS6251566B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the structure of a feed roller in a harvester for crops such as maize, which enables both feed rollers to efficiently transfer crops such as maize, and which greatly increases the amount of crops transferred. The purpose is to prevent crops from clogging between both feed rollers, etc., even when they are ripe.

In a flywheel-type maize harvester, the maize guided by a pair of left and right dividers is tilted forward by a guide rod, the maize that has been tilted forward is harvested by a reaping blade, and the cut maize is transferred to a pair of left and right feed rollers. The maize is transported backwards through the supply port and into the casing, and the maize is shredded within the casing.The outer peripheral surface of the roller also has a protrusion for transporting the maize formed in the height direction. are arranged at equal intervals in the circumferential direction. By the way, in this type of maize harvester,
In order to improve the transfer of maize by both feed rollers, it is preferable to have both feed rollers close to each other. This causes the problem of clogging between the rollers, and the reality is that conventionally it has not been possible to transport the maize efficiently by both feed rollers without clogging the maize.

The present invention was invented in view of the above-mentioned circumstances, and its features include: a guide body that tilts crops such as maize forward; a cutting blade that reaps crops that are tilted forward; It has a pair of left and right feed rollers that transport the harvested crop rearward between them, and the feed rollers have a protrusion that projects outward in the radial direction and is continuous in the height direction on the outer peripheral surface of the feed roller. In a harvester for harvesting crops such as maize, which is arranged in plural numbers in the feed roller, a flexible plate floating radially outward is provided between the protrusions on the outer peripheral surface of the feed roller.

An embodiment of the present invention will be described below with reference to the drawings. The drawings 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 serving as a guide body, a feeding device 3, a casing 4, a fly hole 5, a blow-up chute 6, a mounting frame 7, and the like. A pair of left and right side plates 8 protrude forward from the front outer side of the casing 4, and a pair of left and right dividers 1 connect to the casing 4 via the side plates 8 and the like.
attached to the side. The divider 1 is arranged on the inner side of the side plate 8 and includes a bottom plate 9, a protruding member 10, and a side rod 11. The bottom plate 9 has a tapered shape, and a protruding member 1 is provided on the outer side of the bottom plate 9 except for the rear part.
0 is fixed. The projecting member 10 has an upwardly curved projecting shape and a tapered shape, and its rear end opening is closed by a cover plate 12. The lid plate 12 is located slightly to the rear of the front end of the side plate 8. Side beam 11
is fixed to the inner edge of the bottom plate 9 on the inner side of the protruding member 10. The feed device 3 is disposed at the rear end of the divider 1 and has a pair of left and right feed rollers 14 supported by a vertical shaft 13. The feed roller 14 has the same outer diameter over the entire length in the height direction, and is formed in the height direction by having a bent plate fixed to the outer peripheral surface over the entire length in the height direction. Three maize transfer protrusions 15 that protrude in a triangular shape on the side are arranged at equal intervals in the circumferential direction. 4
Reference numeral 1 designates three flexible plates of each feed roller 14, which are arranged in a curved floating shape outward in the radial direction between the respective protrusions 15 on the outer peripheral surface of the feed roller 14. The flexible plate 41 is made of a flexible material having elasticity such as a rubber material, and each end has a bolt 4 on the side of the corresponding protrusion 15.
2, it is detachably attached to the flexible plate 4.
1, the protrusions 15 on the outer circumferential surface of the feed roller 14 are spaced apart from the outer circumferential surface and are substantially covered. Note that the phases of both rollers 14 are shifted by 60 degrees,
When both rollers 14 are driven, the protruding portion of the flexible plate 41 of each roller 14 is configured to come into contact with the protruding portion 15 of the other feed roller 14. A star-shaped cutting blade 16 is attached to the lower end of the feed roller 14.
It is installed by cutting near the root of the
Each vertical shaft 13 is rotatably supported by a transmission case 17 and a bearing member 18 installed on the front surface of the casing 4, and is linked to the rotating shaft 19 of the flywheel 5 via a transmission mechanism in the transmission case 17. Then, the feed rollers 14 are driven in opposite directions to transport the harvested maize A backward while knocking it down. The guide rod 2 pushes down the maize A growing in the field forward, and is provided in the transmission case 17. The casing 4 consists of a lower casing 20 and an upper casing 22 which is pivotally connected to the lower casing 20 via a hinge so as to be openable and closable.
A blow-up chute 6 is connected to. A square hole-shaped supply port 23 is formed in the front wall of the lower casing 20 below the rotating shaft 19.
An L-shaped fixed blade 24 is installed on the inner surface along the edge of the mouth. Of course, this fixed blade 24 is provided astride the rotation direction side and the lower edge side of the flywheel 5. 25 is a pair of left and right plate-shaped first guides;
It protrudes forward from a portion of the front wall of the lower casing 20 that spans the entire length of the opening edges on both sides of the supply port 23 in the height direction. Reference numeral 26 denotes a pair of left and right second guides, which extend from the first guide 25 to the inner end of the cover plate 12 of the divider 1 in a range extending from the upper end of each feed roller 14 to the vicinity of the reaping blade 14 on the rear and outer sides of each feed roller 14. It is set up over
The second guide 26 includes a flat mounting part 28 that is detachably attached to the outer surface of the first guide 25 with a bolt 27, a curved guide part 29 located on the rear side and the outer side of the feed roller 14, and this guide. Part 2
9 and is detachably attached to the front wall or side plate 8 of the lower casing 20 with bolts 30. The flyhole 5 is rotatably supported in the lower casing 20 by a rotating shaft 19, and a movable blade 34 is attached to the front of the flywheel 5, and blow-up blades 35 are provided radially protruding from the outer periphery. has been done. The movable blade 34 shreds the maize A supplied into the casing 4 from the supply port 23. The rotating shaft 19 is operatively connected to an input shaft 36 mounted on the rear surface of the lower casing 20 via a winding transmission mechanism 39, and the input shaft 36 is connected to the front part of the tractor via a universal joint shaft.
It is detachably connected to the PTO shaft. Mounting frame 7
is attached to the rear surface of the lower casing 20 with a slight eccentricity in the lateral direction, and this attachment frame 7 is detachable from the front three-point link mechanism 37 of the tractor.

In the above configuration, when harvesting maize A, the divider 1 guides the maize A growing in the field, the guide rod 2 pushes it forward, and then the pair of cutting blades 16 rotating in the direction of the arrow cut the maize A from the root. At the same time, the cut maize A is sent backward while being horizontally turned down by the rotation of a pair of feed rollers 14, and is fed into the casing 4 from the supply port 23 through the space between the first guides 25. By the way, in the above case, the flexible plate 41 is
Since the flexible plate 4 of each feed roller 14 is arranged in a curved floating shape on the radially outward side between the protrusions 15 on the outer circumferential surface, when the amount of maize A to be transferred is small, the flexible plate 4 of each feed roller 14
1 is the other side feed roller 14 without being dented too much.
The flexible plate 41 of each feed roller 14 works in conjunction with the protruding portion 15 to sandwich the maize A and transfer it well, and when the amount of maize A to be transferred becomes large, the flexible plate 41 of each feed roller 14 is moved as shown in FIG. As shown by the imaginary line, the maize A is transferred in the same manner as described above. Therefore, even if the amount of maize A to be transferred becomes large, there is no possibility that the maize A will become clogged between the two feed rollers 14. It can be transported well without any damage. Also, the second guide 2
6 is provided extending from the first guide 25 to the inner end of the lid plate 12 of the divider 1 on the rear side and the outer side of the feed roller 14, so that the cut maize A is provided on the rear side and the outer side of the feed roller 14. Even if the maize A is caught in
Since the maize A is guided forward along the forward direction and sent out to the front side of the feed roller 14, the maize A does not accumulate and become clogged on the rear and outer sides of the feed roller 14. Moreover, the maize A sent out to the front side is again sent to the rear supply port 23 by the feeding roller 14. The maize A supplied into the casing 4 is shredded by the movable blade 34 and the fixed blade 24 of the rotatably driven flywheel 5, and the fragments of the maize A are blown up by the flywheel 5. It is sent along the inner circumferential surface of the casing 4 to the blow-up chute 6 by the blade 35, and the blow-up chute 6
The cargo is then loaded into the accompanying container.

In the embodiment, the feed roller is provided with three flexible plates, but these flexible plates may be integrated into a cylindrical shape and provided on the feed roller. Further, in the embodiment, the protrusion was formed by fixing a plate material to the outer peripheral surface of the feed roller, but the protrusion may be integrally formed on the outer circumferential surface of the feed roller.

In the embodiment, the present invention is applied to a tractor-mounted maize harvester, but the present invention can also be applied to a harvesting machine such as a tractor-mounted maize harvester.

As described in detail above, the present invention provides a flexible plate that floats outward in the radial direction between the protrusions on the outer circumferential surface of the feed roller, so that crops such as maize can be easily handled by both feed rollers. In addition, even when the amount of crops to be transferred is large, since the flexible plate is recessed, the crops do not get stuck between the two feed rollers, and the crops can be transferred favorably by the two feed rollers. The present invention has the above advantages and is of great practical benefit.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is a longitudinal cross-sectional view of the whole, Fig. 2 is a cross-sectional plan view thereof, Fig. 3 is an enlarged view of the main part of Fig. 2, and Fig. 4 is a feed roller. FIG. 14...Feed roller, 15...Protrusion, 16...
...Reaping blade, 41...Flexible plate, A...Maze.

Claims (1)

[Claims] 1. A guide body that tilts a crop such as maize forward;
It has a reaping blade that reaps a crop that is tilted forward, and a pair of left and right feed rollers that transport the cut crop rearward between the two, and a blade that protrudes outward in the radial direction on the outer peripheral surface of the feed roller and has a height. In a harvester for harvesting crops such as maize, which has a plurality of protrusions that are continuously formed in the circumferential direction, a movable material that floats outward in the radial direction is placed between the protrusions on the outer peripheral surface of the feed roller. A structure of a feed roller in a harvester for crops such as maize, characterized by being provided with a flexible plate.