JPH0111005Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention relates to a device for discharging bundled waste straw bound by a waste straw binding machine attached to a combine harvester into a field, and in particular, This method takes over the bundled waste straw supplied from the combine machine, transports it along a conveyance path formed to an appropriate height behind the harvested field side of the combine, and at the end of the transport, the bundled waste straw is brought into an upright position and dropped onto the field. This invention relates to a waste straw discharge device.

(b) Conventional technology Waste straw sent out from the threshing section of a combine harvester is
It is configured to be transferred to the rear of the cut field side of the machine by a gripping and conveying device, processed, and discharged to a place where it will not interfere with the next process of reaping. For example, those that can be stored inward are disclosed in Japanese Utility Model Application Publication No. 51-14906,
Although many proposals have been made and are well known, as seen in Japanese Utility Model Application Publication No. 53-48860 and Japanese Utility Model Application Publication No. 54-97452, the above-mentioned waste straw conveying device is not suitable for removing waste sent from a threshing machine. If the structure is such that the straw is bundled by a tying machine and then transported to the rear of the machine on the mowed field side by a conveying device and discharged to the field in an upright position, the tying machine section may cause the straw to fall sideways. It is necessary to transport a certain straw bundle to a position where it will not be knocked over by the movement of the aircraft, while ensuring that the bundle of straw does not collapse by forcing the bundle into an upright position. Since the transport device is large in size, if the transport device is made to be able to be stored, but if the entire transport device is rotated and stored, it would be extremely difficult to handle during storage work due to the large size of the device. Moreover, it is necessary to secure a considerably large area for the transport device to move during storage.

Therefore, when implementing a storage structure in a waste straw conveying device that discharges bundled waste straw to the field in an upright position, for example,
Or other Publications No. 48-23893, Publications No. 49
Adopting a means such as that seen in Publication No. 5584, in which the rear portion of the conveying device in the conveying direction can be partially expanded and contracted along the conveying direction and stored, reduces the size of the movable parts and reduces the amount of adjustment required. This is advantageous because the space can be reduced.

(c) Problems to be solved by the invention However, in the conventional device in which the rear part of the waste straw conveying device can be stored by partially extending and contracting in the transport direction, the part that can be telescopically operated is in the transmission state. If this is applied to a device that discharges waste straw bundles into the field in an upright position, it will operate even in the stored position unless the entire device is turned off. Therefore, if the waste bundle conveying device is operated by mistake while it is in the stored state, the device may protrude to the rear to a large extent even in the stored state due to the large size of the entire device. Since the tip of the plant is activated, there is a problem that the tip of the device may damage nearby planted crops or come into contact with other objects or people, causing an accident.

(d) Means for solving the problem Therefore, in the present invention, the rear part of the waste straw bundle conveying device in the transport direction is configured to be able to extend and contract along with the fixed part at the front part in the transport direction, and the storage is carried out at the rear part. The above-mentioned problem is solved by automatically cutting off power transmission to the rear part during the contraction movement.

(E) Effect Therefore, according to the present invention, when the rear part of the waste bundle carrying device in the transfer direction is moved in the contracting direction and stored, the power transmission to that part is automatically cut off as the operation is performed. Therefore, even if the waste straw bundle carrying device is accidentally activated while in the stored state, the protruding tip will always be in a stopped state, and it will not damage surrounding crops or cause damage to objects or personnel. This will prevent accidents and make you safer.

(f) Examples The present invention will be described below based on examples shown in the figures.

In Figs. 1 to 3, 1 is a combine harvester equipped with a waste straw tying machine, which is equipped with a reaping section, a threshing section 2, a paddy receiving section, etc., as well as a conventional combine harvester. Machine 3 is installed and configured.

This waste straw binding machine 3 forms a waste straw passage 4 which is inclined rearward and downward in communication with the discharge path of waste straw discharged from the threshing section 2, and opens and closes the waste straw passage at the end of the waste straw passage. A nozzle 5 with a bill holder and a discharge arm (not shown) are disposed above the terminal end of the straw removal passage 4, and a concentrator 6 with a needle packer is disposed below. The two parts 5, 6 are supported in a cantilevered manner by a transmission case 7 which is arranged at a certain distance away from the two parts 5, 6 in the direction of the mown field (to the right in Figure 1). Then, the straw is transferred from the threshing section 2 in the direction of the terminal end in the straw passage 4 by the action of the straw packer supplied to the starting end of the straw passage 4 with the straw in a horizontal position with its head facing the uncut land. When a certain amount of waste straw is received at the door, this is sensed and the needle and knot part 5 act to bind the collected waste straw, and then the door opens and the waste straw is tied from the end of the waste straw passage 4. It is constructed in a similar structure to a conventional one so that the waste straw is ejected rearward by the action of the ejecting arm.

This waste straw binding machine 3 receives power from a power device (not shown) of the combine harvester 1 via a drive case 20 disposed on the mown field side of a transmission case 7, and connects the knotting section 5 and the concentrating section 6. is starting to work.

3 is a bundled waste straw discharge device that conveys the bundled waste straw supplied from the waste straw binding machine 3 to an appropriate height on the mown field side above the combine and discharges it into the field in an upright position, and is configured as follows. has been done.

A first operating shaft 11 and a first driven shaft 12 are rotatably mounted on both ends of a pair of first transport cases 9 and 10, and the first operating sprocket 1 is mounted on both shafts 11 and 12.
3 and the first driven sprocket 14 are each pivoted, a conveyance chain 15 is wound around them, and a clamping body 16 is disposed oppositely along the conveyance working surface 15a of the conveyance chain 15 to form a fixed conveyance section 17. A transmission box 18 is attached to one end of the back surface of the first transport plate 9 of the fixed transport section 17, the first operating shaft 11 is extended into the transmission box 18, and a bevel gear 19 is pivotally attached to the tip thereof.
The transmission box 18 is connected and supported by the transmission cylinder 21 to the drive case 20, and the transmission shaft 22 and the bevel gear 23 in the transmission cylinder 21 are connected from the drive case 20.
19 to the first actuating shaft 11, and the conveying start end of the fixed conveying section 17 is located at the end of the waste passageway 4 of the waste binding machine 3, and the conveying path is located at the upper mower after the combine. The support rod 24 is also fixed to the fuselage 3 so that it extends downwardly toward the ground.

Next, a movable conveyance section 25 is disposed in relation to the fixed conveyance section 17 so that its position can be changed, for example, movable and fixed along the conveyance path. , 26, respectively, and a second operating sprocket 29 and a second driven sprocket 30 are respectively pivotally mounted on both shafts 27 and 28. Wrap the conveyor chain 31,
A trapping body 32 is disposed oppositely along the conveyance working surface 31a of the conveyance chain 31, and a fall guide plate 33 facing the conveyance path is disposed at the end of the conveyance path. The second operating shaft 27 is extended to pass through the first transport cases 9 and 10 on the back side of the fixed transport section 17 (transmission box 1
8), and a clutch gear 34 is pivotally attached to the tip of the clutch gear 34, and a cylindrical support part 35 is formed on the second transport case 26 so as to surround the second operating shaft 27, and a bearing 36, The second operating shaft 27 is pivotally supported via 36.

On the other hand, the fixed conveyance section 17 includes the cylindrical support section 3.
5 is inserted into the first transport case 10 on the front side along the transport path, and a guide groove 38 through which the second operating shaft 27 is inserted is provided in the first transport case 9 on the back side, respectively. Said guide groove 38
A transmission gear 39 is attached to the first operating shaft 11 in the transmission box 18 so as to cover the transmission gear 3.
An intermediate gear 40 which is always engaged with gear 9 is mounted in a transmission box 18.

In addition, the first operating shaft 1 of the first transport case 9, 10
A guide support rod 41 is made to protrude toward the second transport cases 26, 26 on the side where the guide support rod 1 is located, and a guide groove 43 that engages with the guide support rod 41 is formed in the second transport case 26 along the transport path. The guide support rod 41 is inserted into and locked in the guide groove 43 to allow the movable conveyance section 25 to move in the direction of the conveyance path, but not to rotate around the second operating shaft 27.
In the embodiment, the second transport case 26
A flange portion 26a is formed at one end of the side where the second operating shaft 27 is located, and a guide groove (not shown) along the transport path is formed in the first transport case 10 on the front side.
The bolt 14 is inserted into the guide groove and the flange portion 26a.
The movable conveyance section 25 can be fixed to the fixed conveyance section 17 at any desired movement position by inserting it through and tightening it with the nut 45.

When performing the work of discharging bundled waste straw with the bundled waste straw discharging device 8 in the waste straw binding machine combine constructed as described above, the movable conveyance section 25 is moved relative to the fixed conveyance section 17 in the direction of the conveyance path (arrow A). Then, the clutch gear 34 is fixed with nuts 45 and bolts 44 at the position where it meshes with the intermediate gear 40 (FIGS. 1 and 2).

In other words, the conveyance terminal end of the movable conveyance section 25 is positioned at a position projecting upward at an appropriate height after the combine, and the first conveyance chain 1 of the fixed conveyance section 17 is
5 and the conveyance chain 31 of the movable conveyance section 25 are rotated (in the A direction) to perform the discharge operation.

That is, the bundled waste straw discharged from the waste straw binding machine 3 in a substantially horizontal position is transferred between the conveyance chain 15 of the fixed conveyance section 17 and the clamping rod 16, and the tip of the straw is clamped, and the stock head is held. The bundled waste straw is conveyed along the conveyance path while facing downward, and then the movable conveyance section 25 receives the bundled waste straw from the fixed conveyance section 17 and holds it between the second conveyance chain 31 and the clamping rod 32. At the end of the conveyance, the bundled waste straw is released from the clamping state by the upper falling guide plate 33, and is brought into an upright position and dropped onto the field.

When not discharging the bundled waste, for example when driving the combine harvester on the road or storing it in a hangar, tighten the nuts 45 and bolts 4.
4 to move the movable conveyance unit 25 to the conveyance start end side (arrow RO in FIG. 2). That is, the position is changed from the overhanging position on the rear mown field side during the discharge operation to the storage position (FIG. 3) where it is not overhanging.

That is, by storing the combine harvester in such a way that it does not protrude, the combine can be safely driven on the road, and the bundled waste discharge device does not get in the way when stored in a hangar.

When the movable conveyance section is placed in the extended working position, the clutch gear 3 of the second operating shaft 27 is inevitably
4 engages with the intermediate gear 40 and is in a state where transmission is possible.On the other hand, when the clutch gear 34 of the second actuating shaft 27 is separated from the intermediate gear 40 and becomes in a non-transmitting state, when it is located in the storage position, it is safe and practical. be.

As mentioned above, the bundled waste straw discharging device according to the present invention receives the bundled waste straw from the straw binding machine, transports it to an appropriate height on the mowed land side behind the combine using a conveyor belt, and then ties it at the end of the conveyance. A bundled waste straw discharging device that forces waste straw into an upright position and releases it falling into a field, wherein the conveyance band is composed of a fixed conveyance section on the conveyance start end side and a movable conveyance section on the conveyance end side, and the movable conveyance The transport section is movable in the transport direction, and the transport belt is moved along the transport path so that the position can be changed between an extended work position located on an extension of the transport route of the fixed transport part and a storage position where the fixed transport part is moved and stored. In the extended and extended working position, power is transmitted from the fixed conveyance section to the movable conveyance section to drive the movable conveyance section, and when the movable conveyance section is moved to the storage position, power is automatically transmitted from the fixed conveyance section to the movable conveyance section. Since the device is designed to be cut off at the center of the field, the bundled waste straw is discharged into the field in an upright position, so even though the entire device is large, only a part of the device is stored in the stored state. Changes can be made by retracting a certain movable conveyance section, so the change operation is light and easy.Also, when the movable conveyance section is placed in the retracted state, the power transmission to the movable conveyance section is automatically cut off to prevent protrusion during storage. The end portion is in a non-operating state, and even if the fixed conveyor side is placed in an active state, the protruding end portion is not activated, thereby preventing accidents to persons or property. There are advantages.

[Brief explanation of the drawing]

Fig. 1 is a plan view of a bundled waste straw discharging device in a combine harvester with a waste straw binding device according to the present invention, Fig. 2 is a cutaway view of the same essential parts taken along the - line in Fig. 1, FIG. 3 is a cutaway view similar to FIG. 2, showing the movable conveyance section in the storage position. 1... Combine harvester with waste straw binding machine, 3... Waste straw binding machine, 8... Bind waste straw discharge device, 17...
Fixed conveyance section, 25...Movable conveyance section.

Claims (1)

[Scope of utility model registration request] The bundled waste straw is received from the straw binding machine, is transported to an appropriate height on the mowed field behind the combine using a conveyor belt, and at the end of the conveyance, the bundled waste straw is brought into an upright position and dropped onto the field. In the straw discharge device, the conveyance belt is composed of a fixed conveyance section 17 on the conveyance start end side and a movable conveyance section 25 on the conveyance end side, the movable conveyance section 25 being movable in the conveyance direction, and the fixed conveyance section The conveyor band is extended and contracted along the conveyance path so that the conveyance band can be freely changed in position between an overhanging work position located on the extension of the conveyance path 17 and a storage position where it is moved and stored in the fixed conveyance section 17. From section 17 to moving conveyance section 2
5 to drive the movable conveyance section 25, and when the movable conveyance section 25 is moved to the storage position, the transmission of power from the fixed conveyance section 17 to the movable conveyance section 25 is automatically cut off. This is a bundled waste straw discharge device for a combine harvester equipped with a waste straw binding machine.