JPS6428Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a grain culm conveying device for transversely transporting grain culms harvested by a reaping device in a harvester such as a binder or a combine harvester.

Conventionally, in this type of conveying device, the grain culms sent along the reaped grain culm receiving passage are raked by a star wheel installed on one side of the passage, and the star wheel is formed into a substantially triangular shape. Grain culms are fed horizontally along a fixed guide to prevent entanglement, and the grain culms that have been fed laterally are sent along a cut grain culm receiving path in front of the stationary guide near the end. It merges with the grain culm. In this case, the grain culm received from the front at the end of the traversing path is guided and raked by a flexible guide attached to the fuselage frame and a star wheel provided opposite it.
The grain culm pushes the flexible guide and spreads out the rear end of the flexible guide so as to close the passage for the grain culm that is being fed across. As a result, the passage of grain culms that have been fed laterally is blocked by the flexible guide, resulting in clogging and disturbance of the conveyance, resulting in a defect that smooth conveyance cannot be carried out.

For this reason, there was a system in which the fixed guide to prevent the star wheel from being rolled up was extended and used as a stopper for the flexible guide, but in this system, grain culms being fed sideways would start at the end of the fixed guide. The gripping and conveying action of the wheels is removed, and since the guide is rigid and fixed, the grain culm cannot be pushed toward the guide plate, which inevitably causes disturbances at the base of the grain culm. . In addition, there was a fixed guide that consisted of an elastic guide whose free end extended to the vicinity of the flexible guide, but when the flexible guide pressed the free end, the starting end of this expanded. This narrows the raking holding space of the output star wheel and blocks the grain culm receiving passage, and the guide itself is deformed by the grain culm, making it virtually impossible to function as a stopper for the flexible guide. There was a drawback.

The present invention is an attempt to improve the above-mentioned drawbacks, and includes a star wheel for raking the grain culm on one side of the harvested grain culm receiving passage, and a horizontal conveyance chain stretched above the rear part of the cutting blade. In the harvester, a fixed guide for preventing grain culm entrainment is provided along the star wheel located on the upper side of the horizontal conveyance chain in the conveyance direction, and the terminal end of the portion of the fixed guide facing the horizontal conveyance chain is provided. An elastic guide is fixedly installed in the section to extend near the rotation locus of the star wheel located on the downstream side of the horizontal conveyance chain in the conveying direction, and faces the harvested grain culm receiving passage on the downstream side of the horizontal conveying chain in the conveying direction. The flexible guide is characterized in that the rear end portion of the flexible guide is configured to be received and supported by the elastic guide.

The embodiment shown in the drawings will be explained below.1
is a binder machine frame, and has a pair of grain culm raising bodies 3, 3 having grass cutting bodies 2, 2 on both sides of the front part, a cutting blade 4 is attached below them, and a cutting blade 4 is attached in the middle part. A pair of left and right wheels 5, 5 are pivotally supported, and a handle 6 and an engine 7 are provided at the rear.

Further, above the rear part of the cutting blade 4, a lateral conveyance chain 8, a conveyance belt with lugs 9, 9, and an upper guide plate 10 are provided in order from the bottom.

A mounting plate 13, a bearing 1
4 and a vertical shaft 15, and the link pins 17 of the horizontal conveyance chain 8 protrude upward at intervals slightly larger than the spacing between the tips of the claws of the star wheel 16. The star wheel 16 is placed on the horizontal conveyance chain 8.
Before the preceding pawl leaves the protruding link pin 17, the next pawl overlaps deeply so that it enters into the movement locus of the link pin.

In addition, the star wheel 1 of the horizontal conveyance chain 8
The portion facing the chain roller 6 is guided and regulated by a pair of front and rear inverted L-shaped chain guides 18, 18 that are in sliding contact with the chain roller.
The hanging part of 8 is attached to the support frame 20 together with the lower guide plate 19,
The spacer 21, which is a cylindrical body, is used to regulate the spacing, and is tightened and fixed with a bolt 22a and a nut 22b.

Furthermore, the protruding link pin 17 of the horizontal conveyance chain 8
A lug 24 is attached to the rear link pin to form a grain culm holding space between it and the claw of the star wheel.

Reference numeral 25 denotes a pair of upper and lower fixed guides whose front portions are attached to the support rods 12 of the intermediate grass body 11. The upper side surrounds the center of the star wheel 16, and the lower side projects out of the rotation trajectory of the star wheel 16. , elastic guides 26 and 26 made of spring steel are provided at the end portions of the portions facing the horizontal conveyance chain 8, respectively, for the cutting blades 4.
The protrusion extends close to the rotation locus of the star wheel 28 provided on the side of the star wheel 28, and is arranged so as to be inclined approximately parallel to the guide plates 10 and 19, which are set back from the terminal end C, in order to improve conveyance. The support rod 1
A flexible guide 27 whose front end is fixed to the front part of the second fixed guide 25 is extended so that its rear end is aligned with the rear part of a star wheel 28 provided on the side of the cutting blade 4.

Further, a flexible guide plate 29 whose rear end is close to the upper and lower surfaces of the star wheel 16 is attached to the right side weeding support rod of the intermediate weeding body 11.

Numeral 30 denotes a binding device provided on the side of the cutting blade 4, which is driven by a chain 31, and a fixed guide 25a is attached to the inside of the star wheel 28.

In the above-mentioned device, the stock base of the grain culm raised by the grain culm pulling bodies 3, 3 is connected to the harvested grain culm receiving passages A, B.
Fixed guides 25, 25a and flexible guide 2
9 and 27 while being guided toward the cutting blade 4, and the star wheel 16 and the star wheel 28 scrape the cutting blade 4 into the cutting blade 4 and cut it.

The harvested grain culm rests on the upper guide plate 10, and the stock part of the grain culm that entered between the fixed guide 25 and the flexible guide 29 is transferred to the horizontal conveyance chain 8, its lugs 24, and the star foil 16. is conveyed toward the binding device 30 while being held by the front and rear claws of the
The stems are transported by conveyor belts 9,9.

At that time, when the harvested grain stems reach the terminal end C of the portion of the fixed guide 25 facing the horizontal conveyance chain 8, the clamping and conveying action by the star wheel 16 is released, but the elastic guide 26 fixed to the fixed guide 25 , 26 are fixed guides 2 as shown in FIG.
5, the star wheel 2 on the lower side in the conveyance direction acts to press the grain culm against the guide plates 10, 19.
Since the grain culm is guided and conveyed to the vicinity of the rotation trajectory of 8,
It is possible to prevent the root part of the grain culm from being pushed out between the fixed guide 25 and the flexible guide 27 on the lower side thereof and falling off.

On the other hand, the stock base of the grain culm coming in from the harvested grain culm receiving passage B is guided toward the star wheel 28 by the flexible guide 27, but the flexible guide 27 is pushed and expanded to the right by the grain culm. The flexible guides 27 contact the tips of the elastic guides 26, 26 and form a series, restricting each other, and the flexible guides 27 block the stock base of the grain culms that have reached the terminal end C and are transported laterally. Grain culms can be transported smoothly without causing disturbance, clogging, etc.

The elastic guides 26, 26 are detachably fixed to the fixed guide 25 with bolts as shown in FIGS. 7 and 8, and can be replaced to suitably change the degree of elasticity depending on the properties of the grain culm. In addition to the relatively short one shown in the embodiment, it may also be one that extends to the rear end of the flexible guide 27.

Then, the grain culms that have been transversely fed in this manner and the grain culms that have entered from the lower side and merged are fed into the collecting culm 30a of the bundling device 30 by the star wheel 28 and packer 32, and are bundled and released.

As mentioned above, the present invention is based on the harvested grain receiving passages A and B.
Star wheels 16, 28 for raking grain culms on one side
In a harvester in which a horizontal conveyance chain 8 is provided above the rear part of the cutting blade 18, grain culm rolling is carried out along the star wheel 16 located on the upper side of the horizontal conveyance chain 8 in the conveyance direction. A fixed guide 25 for prevention is provided, and a terminal end C of the fixed guide 25 facing the lateral conveyance chain 8 is provided with a fixed guide 25 that extends to the vicinity of the rotation locus of the star wheel 28 located on the downstream side of the lateral conveyance chain 8 in the conveyance direction. elastic guide 2
6 is fixed, and the rear end of the flexible guide 27 facing the cut grain culm receiving passage B on the lower side in the transport direction of the horizontal transport chain 8 is configured to be able to be received and supported by the elastic guide 26, so that the grains are The grain culm that has arrived is guided by the fixed guide 25 and then by the elastic guide 26 and is sent to the vicinity of the rotation locus of the star wheel 28 on the downstream side in the conveying direction, so that the stock base of the grain culm is It can be prevented from being pushed out and falling out between the fixed guide 25 and the flexible guide 27 on the lower side thereof.

In addition, the elastic guide 26 is a flexible guide 27 that is pushed and expanded by the grain culm coming in from the harvested grain culm receiving passage B and tries to close the passage of the grain culm that is being fed laterally.
Since the rear ends are received and mutually restricted, the grain culm can be transported smoothly without causing disturbance or clogging of the grain culm base by the flexible guide 27. .

[Brief explanation of drawings]

The drawings show one embodiment of the present invention,
Fig. 1 is an overall plan view of the binder, Fig. 2 is a side view of the reaping device, Fig. 3 is a plan view of the same as above, Fig. 4 is a side view showing a partial cross section of the star wheel, Fig. 5
6 is a perspective view of the flexible guide, FIG. 7 is a perspective view of the elastic guide attached, and FIG. 8 is a sectional view of the same. 4...Mowing blade, 8...Horizontal conveyance chain, 16, 28
... Star wheel, 25 ... Fixed guide, 26
...Elastic guide, 27...Flexible guide, A, B...
...Reaped grain culm receiving passage, C...Terminal part of fixed guide.

Claims (1)

[Scope of utility model registration request] In a harvester, star wheels 16 and 28 for raking grain culms are provided on one side of the reaped grain culm receiving passages A and B, and a lateral conveyance chain 8 is stretched over the rear part of the cutting blade 4. A fixed guide 25 for preventing grain culm entrainment is provided along the star wheel 16 located on the upper side of the conveying direction of the conveying chain 8, and a terminal end C of the portion of the fixed guide 25 facing the horizontal conveying chain 8 is provided. In this example, an elastic guide 26 extending to the vicinity of the rotation locus of the star wheel 28 located on the downstream side in the conveying direction of the horizontal conveying chain 8 is fixedly installed in the cut grain culm receiving passage B on the downstream side in the conveying direction of the horizontal conveying chain 8. The rear end of the flexible guide 27 facing the elastic guide 2
6. A grain culm conveying device in a harvester, characterized in that the grain culm conveying device is configured to be able to be received and supported by 6.