JPH0560881B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Field of Industrial Application The present invention relates to a waste straw processing device for a combine harvester that binds or shreds waste straw discharged from a threshing device of the combine harvester.

(b) Prior art Conventionally, a combine harvester in which a binding device is attached to the rear of the threshing device is already known from Japanese Utility Model Application Publication No. 55-68431, etc.; A device in which a cutter or a binding device is installed together or directly attached with a cutter or binding device is already known from Japanese Utility Model Application Publication No. 15353/1983.

(c) Problems to be solved by the invention Generally, combine harvesters in which only a cutter is attached to the rear of the threshing device, or
A threshing device with only a binding device attached to the rear of the threshing device, such as the one described in Publication No. 68431, may be used for only one process of removing straw, but depending on the purpose of using the removed straw, it may be possible to use a cutter. If farmers want to frequently switch between shredding and binding using a binding device, it is not possible to satisfy the farmers' needs.

Therefore, as seen in the above-mentioned Japanese Utility Model Publication No. 15353/1983, a cutter and a binding device are installed at the rear of the threshing device so that the order in which they are installed can be changed, and either one can be selected as appropriate. The rear part of the threshing equipment can be used to switch between shredding and bundling, or if only a single straw removal process is to be carried out (in which case farmers purchase only one type of equipment). A system was proposed in which a cutter or bundling device was attached alone to carry out the straw removal process.

However, in this case, when both devices are installed together, the binding device pushes out the bundle backwards, so
If a cutter is installed behind the binding device, the cutter will get in the way of releasing the bundle, so it is practically difficult to install the cutter after the binding device, and usually,
A binding device must be attached to the rear of the cutter.

However, when the binding device is attached to the rear of the cutter in this way, and when it is attached directly to the rear of the threshing device as described above, the attachment position of the binding device relative to the threshing device varies in the front and rear directions depending on the presence or absence of the cutter. Moreover, since the threshing device, cutter, and binding device are actually different in size and shape, in reality, due to the difference in size and shape of the devices to which they are attached, However, there is no choice but to change the mounting structure and mounting position, and there are cases where the mounting position of the bundling device changes as described above, cases where waste straw is supplied to the bundling device beyond the cutter, and cases where the bundling device is directly from the threshing device. Due to changes in the straw transfer route when supplied to the bundling device, the supply conditions such as the supply position and feeding posture of the scavenged straw to the bundling device are different, and it is extremely difficult to achieve stable and good bundling performance in both cases. There is a drawback.

Moreover, due to changes in the installation position and the object to which the binding device is attached, in actual production, the installation configuration of the binding device, the cover body configuration, the transmission mechanism, etc. must be significantly changed for both parties, which reduces the overall manufacturing cost. There is a problem that arises.

In addition, if a farmer wants to purchase a binding device with cutters after purchasing a binding device for the first time, as mentioned above, the binding device alone and the binding device with cutters differ in terms of the installation configuration, cover body, transmission system, etc. of the binding device. They each have separate configurations, and in the end, the initially purchased binding device alone cannot be used for both purposes, so even though that device is available, both devices have to be purchased separately, resulting in a heavy economic burden.

If, contrary to the above, a cutter is attached after the binding device, not only will there be the problem of not being able to release the bundle as described above, but the same problem as in the case of the above-mentioned binding device will occur with the cutter.

(d) Means for solving the problem The present invention provides a cutter 4 and a binding device 16 that are removably attached to the rear of the threshing device 1 mounted on the machine stand, respectively, and the cutter 4 In the combine harvester, in place of the cutter 4, a straw removal passage switching body is provided at the top of the cutter 4 to switch between supplying the straw to the cutter 4 and supplying the waste straw to the bundling device 16 by passing through the upper part of the cutter 4. A hollow intermediate frame 27 having substantially the same shape as the frame of the cutter 4 and having intermediate transmission means is detachably attached to the rear of the threshing device 1, and a binding device 16 is detachably attached to the rear of the intermediate frame 27. At the same time, transmission is possible from the threshing device 1 via the intermediate transmission means, and the straw discharged from the threshing device 1 is transferred to the intermediate frame 2.
The above-mentioned problem was solved by arranging the composition so that it passes over 7 and is supplied to the binding device 16.

(E) Function When carrying out straw processing that frequently changes the cutting and binding of harvested and threshed straw, the cutter 4 is attached to the rear of the threshing device 1, and the binding device 16 is attached to the rear of the straw. is installed, and the straw disposal work is carried out while appropriately switching the straw disposal passage using the straw disposal passage switching unit so as to supply waste straw to either one of the disposal straw processing devices.

Furthermore, when only binding is performed without performing much shredding, an intermediate frame is attached in place of the cutter, and the binding device 16 is attached to the rear of the intermediate frame to perform the binding.

In both cases, the mounting position of the bundling device and the straw supply path are almost the same, so the conditions for supplying the straw to the device do not change, and stable and good straw bundling performance is achieved in both cases. You can make it work.

In addition, if only shredding processing is performed, use threshing device 1.
Shredding work is carried out by attaching only the cutter 4 to the rear of the machine.

(F) Example An example of the present invention will be explained with reference to the drawings.
Reference numeral 1 denotes a threshing device mounted on a machine base having a traveling device 2, and a straw conveying device 3 that protrudes rearward from the rear of the culm discharge port is installed above the dust sorting chamber of the threshing device 1. There is a cutter 4 at the rear, and its side frame 4
The threshing device 1 is removably mounted by hanging a hanging rod 5 fixed between a and 4b on receivers 6, 6 which are protruded from the upper rear end of the threshing device 1. A large number of disk blades 8a, 8b... are attached at appropriate intervals to the pair of front and rear rotating shafts 7, 7 of the cutter 4, and a pulley 10 fixed to the rear rotating shaft 7 is connected to the shaft of the threshing device 1. 9
V-belt 12 by drive pulley 11 attached to
is driven through. On the other hand, a switching plate 15 having guide rails 14, 14 facing the straw conveying device 3 is screwed onto the supply port 13 at the top of the cutter 4.
The guide rails 14, 14 and the switching plate 15 constitute a straw removal passage switching body.

Reference numeral 16 denotes a binding device, which, like the conventional one, includes a knot 17a, a packer 17b, and a release arm 17.
c, a door, a stock regulating plate 18, an input shaft 19, etc., and a mounting frame 20 on which the binding device 16 is attached so as to be adjustable in horizontal movement connects the upper parts of both side frames with hanging rods 21, and also connects the upper parts of the side frames with the side frames. Mounting brackets 22, 2 on the outside lower part of
2 is fixed, and the hanging rod 21 of the mounting frame 20 is hung on the supports 23, 23 on both sides of the rear surface of the cutter 4, and the fittings 22, 22 are screwed on both sides of the lower part of the cutter 4. Both ends of a pipe 25, which is screwed onto the rear portions of the auxiliary frames 24, 24 and connects the lower rear end of the mounting frame 20, are connected to the machine base by stays 26, 26.

The intermediate frame 27 used when only the binding device 16 is attached to the threshing device 1 is shown in FIGS.
As shown in the figures and FIG. 6, it is formed to have approximately the same shape as the frame of the cutter 4. That is, the cutter 4
Side plates 27a, 27b that are substantially the same as the side frames 4a, 4b of
The front upper part of the is connected by a hanging rod 5a, and the rear part is connected by a downward U-shaped guide frame 30 having slopes 28, 29 whose upper front and back are inclined downward by θ, so that the guide frame 30 and the hanging rod 5a are connected. Straw waste discharge passage 3 between
1, and on its upper part, guide rails 14, 14 similar to those of the cutter 4 are installed.

Further, the intermediate frame has intermediate transmission means including an intermediate shaft 7a, an intermediate pulley 10a attached to the intermediate shaft 7a, and an output pulley 10b attached to the end of the intermediate shaft 7a opposite to the intermediate pulley 10a. There is. That is, the intermediate shaft 7a is supported at a portion of the intermediate frame 27 corresponding to the rear rotating shaft 7 of the cutter 4, and an intermediate pulley 10 attached to the intermediate shaft 7a is supported by the intermediate shaft 7a.
The pulley a is the same as the pulley 10 and is operatively connected to the drive pulley 11 via the V-belt 12, and the output pulley 10b is transmitted to the input shaft 19 of the binding device 16.

The auxiliary frames 24, 24 are the same as those attached to the cutter 4, and are screwed to the side frames 4a, 4b with the upper part of the straw guide plate 32 sandwiched between them during straw shredding. However, if the cutter 4 is not used, the straw guide plate 32 must be removed and the auxiliary frames 24, 24
is directly screwed onto the intermediate frame 27.

Therefore, when only the binding device 16 is attached to the threshing device 1, the hanging rods 5a of the intermediate frame 27 are hung on the receivers 6, 6 of the threshing device 1, and the binding device 16 is first attached to the hanging rods of the attachment frame 20. 21 as the receiver 23a of the intermediate frame 27,
23a, and then the mounting brackets 22, 22 are screwed onto the auxiliary frame 24 attached to the intermediate frame 27.

In the above-mentioned combine harvester, when harvesting and threshing is performed while appropriately switching processes such as shredding and bundling the waste straw discharged from the waste straw conveying device 3, a device is installed at the rear of the threshing device 1 as shown in FIG. ni cutter 4
and the binding device 16 are attached in that order. and,
When shredding waste straw and scattering it on the field, switch plate 15
When the straw is opened as shown by the chain line in FIG. 1 and the waste straw is fed to the cutter 4 by the waste straw transport device 3, the waste straw is shredded by the cutter 4, and the cut straw is guided by the cut straw guide plate 32 and sent to the field. is discharged. In the case of bundling, when the switching plate 15 is closed, the waste straw is conveyed while being held between the straw waste conveying device 3 and the guide rails 14, 14, passes over the cutter 4, and is supplied to the bundling device 16. The waste straw is raked into the bundle by the packer 17b and bundled, and the bundled straw bundle is discharged rearward by the discharge arm 17c.

If only the waste straw is to be shredded, the bundling device 16 is removed from the state shown in FIG. 1, and only the cutter 4 is attached to perform the shredding. Therefore, in this case, the mounting position and mounting structure of the cutter 4 are exactly the same as in the case where the binding device 16 is mounted after the cutter 4.

If only the waste straw is to be bound, an intermediate frame 27 is installed in place of the cutter 4, and a binding device 16 is installed at the rear of the intermediate frame 27. In this case, the straw discharged from the straw removal conveyance device 3 is held and conveyed toward the binding device 16 by the guide rails 14, 14 of the intermediate frame 27 and the straw removal conveyance device 3, and during this time, the straw that has fallen off from the straw removal Debris, mud, etc. fall through the straw waste discharge passage 31, and the bundling device 16 picks up the supplied waste straw and binds and releases it.

In the above, the intermediate frame 27 is formed in substantially the same shape as the frame of the cutter 4, and the waste straw passes through the intermediate frame 27 and is supplied to the bundling device 16.
Even when the bundling device 16 is attached to the intermediate frame 27, the mounting position of the bundling device and the waste straw supply route can be made almost the same as in the case where the cutter 4 and the bundling device are installed together, so that the removal of straw to the bundling device 16 can be made substantially the same. Since the supply conditions such as the supply posture and the supply position are the same, it is possible to stably exhibit good binding performance in any binding operation.

In addition, since the intermediate frame 27 is hollow and lightweight, when performing binding work in a soft field, the intermediate frame 27
Using this will reduce the amount of settling of the running gear and improve the running performance of the combine.

In addition, since the slope 29 at the rear of the intermediate frame 27 is substantially continuous with the guide plate 33 leading to the converging section of the bundling device 16, there is no stagnation in the flow of waste straw, and there is no possibility of clogging during the feeding process to the bundling device 16. There is no disturbance in the posture, and the bundle can be discharged from a predetermined height to a sufficiently distant mown field by attaching a bristling rod or a bundle discharge device.

In addition, straw debris that has fallen from between the guide rails 14, 14 is guided by the slope 28 at the front of the guide frame 30 and the part hanging down from the slope 28, and the intermediate shaft 28 is guided to the intermediate shaft 28.
The straw waste, etc. that fall through the straw waste discharge passage 31 that bypasses the intermediate shaft 7a will not be wrapped around the intermediate shaft 7a.

Moreover, although the intermediate frame 27 is hollow, the front sides of the side plates 27a and 27b are connected by a hanging rod 5a, and the rear sides are connected by a downward U-shaped guide frame 30 forming a straw waste discharge passage 31. Furthermore, since the hanging rod 5a and the guide frame 30 are connected in the middle by the guide rails 14, 14, the intermediate frame 27 can be constructed firmly so as not to be deformed.

(G) Effects of the Invention The present invention provides a cutter at the rear of the threshing device 1 mounted on the machine base, and a binding device 1 at the rear of the cutter 4.
6 are removably attached to each cutter 4, and a straw removal passage switching body is provided on the upper part of the cutter 4 to switch between a state in which the straw is supplied to the cutter 4 and a state in which the straw is passed through the upper part of the cutter 4 and is supplied to the bundling device 16. In the combine harvester provided, in place of the cutter 4, a hollow intermediate frame 27 having substantially the same shape as the frame of the cutter 4 and having an intermediate transmission means is detachably attached to the rear of the threshing device 1, and the intermediate frame 27 A binding device 16 is removably attached to the rear of the threshing device 1 and can be transmitted from the threshing device 1 through the intermediate transmission means, and the straw discharged from the threshing device 1 is transferred to the intermediate frame 27.
The following effects are achieved by supplying the material to the binding device 16 by passing the material through the top.

That is, a bundling device 16 with a cutter 4 that can freely change shredding and bundling of waste straw according to farmers' requests, a cutter 4 alone that only shreds, and a bundling device 16 that only does bundling. In addition to being able to provide a single bundle at any time, in the case of the binding device 16 with a cutter 4, the binding device 16 is attached after the cutter 4 to ensure that the bundle is released without any hindrance. Instead, an intermediate frame 27 is attached, and the intermediate frame 27 is formed in substantially the same shape as the frame of the cutter 4, and the waste straw is passed over the intermediate frame 27 to be supplied to the binding device 16, so that the binding device 16 alone, the conditions are the same as when the bundling device 16 is attached to the rear of the cutter 4, that is, the mounting position of the bundling device 16 and the straw supply route can be substantially the same. It is possible to provide a bundling device that maintains constant supply conditions such as the feeding posture and supply position of waste straw, and that stably exhibits good bundling performance in any bundling operation mode.

Moreover, there is almost no need to change the mounting structure, cover structure, etc. on the binding device 16 side depending on whether the binding device 16 is attached to the intermediate frame 27 or the cutter 4. By providing a transmission means and transmitting power from the threshing device 1 to the binding device 16 via the intermediate transmission means, it is possible to create a transmission system that is almost the same as that in a conventional binding device with a cutter, in which the binding device is transmitted from the cutter immediately before it. As a result, it is possible to use both of the above-mentioned bundling devices 16 with almost no need to change their structures and specifications.Therefore, it is possible to provide an inexpensive bundling device 16 as a whole, and it is possible for farmers to purchase the bundling device 16 for the first time. Later, when the farmer wants to purchase the binding device 16 with the cutter 4, the binding device 16 can also be used and only the cutter 4 needs to be purchased, thereby eliminating wasteful investment by the farmer.

[Brief explanation of the drawing]

The drawings show one embodiment of the invention,
Figure 1 is a side view of the rear of the combine with a cutter and binding device attached to the rear of the threshing device, Figure 2 is a side view of the same as above with the binding device attached to the rear of the threshing device via an intermediate frame, and Figure 3 is The same plan view as above, Figure 4 is a perspective view of the intermediate frame, Figure 5 a is a perspective view of the cutter, and b
6 is a perspective view of the cutting straw guide plate, and FIG. 6 is an exploded perspective view of the intermediate frame. DESCRIPTION OF SYMBOLS 1... Threshing device, 3... Straw removal conveyance device, 4... Cutter, 16... Binding device, 27... Intermediate frame, 28, 29
... Slope, 30... Guide frame, 31... Straw discharge passage.

Claims (1)

[Claims] 1. A cutter 4 is removably attached to the rear of the threshing device 1 mounted on the machine base, and a binding device 16 is detachably attached to the rear of the cutter 4, and the upper part of the cutter 4 is in a state where straw is supplied to the cutter 4. and cutter 4
In a combine harvester equipped with a switching body for switching straw passages to a state in which the straw passes through the upper part of the straw and is supplied to the bundling device 16, the straw removal passage switching member has an intermediate transmission means that is approximately the same shape as the frame of the cutter 4 and has an intermediate transmission means in place of the cutter 4. A hollow intermediate frame 27 is detachably attached to the rear of the threshing device 1, and a binding device 16 is attached to the rear of the intermediate frame 27.
is removably attached, and transmission is possible from the threshing device 1 via the intermediate transmission means, so that the straw discharged from the threshing device 1 is passed over the intermediate frame 27 and supplied to the binding device 16. A waste straw processing device for a combine harvester, characterized in that it is configured as follows.