JPS642606Y2 - - Google Patents

Description

[Detailed description of the invention] Conventionally, it has been known to attach a tying device and a cutter to the rear of a combine harvester, but there has been no means to rationally attach the tying device and cutter to a single support frame. .

The present invention enables waste straw discharged from a combine harvester to be supplied to the cutter or to the bundling device in an orderly and smooth manner, as well as to firmly hold both of the devices. The purpose of the present invention is to provide a support frame for a straw disposal device in a combine harvester, which can be mounted on the rear of a combine harvester and supported so that the device does not protrude significantly rearward, and the support frame is provided at both ends of at least three horizontal rods. A support frame having a triangular shape in side view is formed by connecting the parts to each other with connecting members, and the front surface of the support frame is made to be substantially vertical, and the part that forms this substantially perpendicular surface. is attached to the rear of the combine, and the surface formed by the upper horizontal rod and the rear horizontal rod is a downward slope at the rear,
The transmission case of the binding device is attached to the upper and rear cross bars forming this inclined surface, and the cutter is attached to the lower part of the binding device inside the support frame.

The embodiment shown in the drawings will be explained below.1
is a self-thresholding type threshing device mounted on the base of a combine harvester with a traveling device, and on the top plate of the dust removal chamber 4, the straw discharged from the culm is transferred from the feed chain to the ear side. A clamping conveyance body 5 is provided obliquely, and the clamping conveyance body 5 is constructed by disposing guide rails 5b on the lower surface of a conveyance chain 5a.

6 has three approximately parallel horizontal rods 7a, 7b, and 7c arranged so as to form a triangular shape when viewed from the side, and the ear side is welded to the apex of the triangular frame, and the stock side is welded to the lower two.
The horizontal rods 7b and 7c of the book are connected by a rod in the front and back direction, and the upper horizontal rod 7a is bent slightly toward the rear at the top of the holding conveyor 5, and the side ends are bent downward. A support frame which is welded to the longitudinal rod at a position corresponding to the rear part of the inlet of the cutter A, and whose front part is made vertical and connected to the rear part of the threshing device by a connecting piece 8. There is.

Then, when the cutter A is stored in the support frame 6, its front surface is aligned with the front vertical surface of the support frame 6 as shown in FIG. The left and right side plates of the cutter A are fixed to the side frames 6a of the support frame 6 by a plurality of supports a, which are at the same height as the top plate of the dust chamber 4.

The binding device B is provided with a transmission case 9 that is long in the direction of the movement path on one side (the upper part in this example) of the movement path, and a needle 10 on the other side. Pipe 1 loosely fitted in
1, and the lower end of the tip resistance rod 12 protruding from the rear can be loosely fitted into the rear culm rod 7b to allow horizontal movement and fixation, and the attachment position of the tip resistance rod 12 can be changed to the direction of the rod. By doing so, the discharge posture and position of the straw bundle can be changed.

In the middle part of the transmission case 9, a packer 13 and a door 14 are provided, and the top of the cutter A in front of the door 14 serves as a convergence part 15. A binding part 19 is connected between the part and the switching plate 18 below it.
There is a release arm 20 at the rear of the tuberosity.
is provided.

Next, to explain the transmission mechanism of the binding device B, the input sprocket 21 provided at the front of the transmission case 9 is moved laterally to the input shaft 22 driven by the blade shaft of the cutter A (or an appropriate shaft of the threshing device 1). It is possible to spline fit, and the Patscar shaft 23
is driven through a fixed position stop clutch 24 having a sprocket 23' and a chain 25, and the articulation shaft 26 is intermittently rotated by the packer shaft 23 through a one-turn clutch 27 actuated by sensing actuation of the door 14.

Further, the needle shaft 2 supported on the pipe 11
The crank arm 28a provided at the ear side end of No. 8 is the crank arm 26a provided at the ear side end of the tuberosity shaft 26.
The boss of the crank arm 26a has a tightening bolt 26b, and a parallel receiving surface is formed on the circumferential surface of the end of the joint shaft 26. a string supply waiting position in which the needle 10 faces below the binding part 19 by rotating the needle 180° and tightening and fixing the needle 10;
It can be pulled up upward and retracted into the binding part 19 to take a retracted position.

Note that instead of the above-mentioned retraction operation of the needle 10, C
The needle 10 may be removed from the needle shaft 28 by engaging and disengaging the pin 10'.

And, the packer shaft 23 is the crank arm 30
and a clutch plate 31 having a tapered protrusion 31a are keyed at intervals, and between them an eccentric cam 33 with a ring 32 loosely fitted around the outer periphery and a clutch actuating plate 34 having a tapered hole 34a on the side surface. The hole 3 in the plate surface of the eccentric cam 33 is fitted so as to be rotatable.
A pin 33b having tapered ends is slidably inserted into the pin 3a, and the eccentric cam 33 and the clutch actuating plate 34 are connected to each other by a torsion spring 35, which pushes out the tapered portion of the pin 33b from the tapered hole 34a. They are connected like this.

Further, one end of a packer pin 36 that is integrated with the ring 32 is rotatably connected to the packer 13, and an arm 37 fixed to the other end is rotatably connected to the crank arm 30 by a pin 37'. .

Therefore, when bundling waste straw discharged from the clamping and conveying body 5, the door 14 does not sense the predetermined pressure at the beginning, so the stop arm 38 moves against the clutch actuating plate 3.
4, one end of the pin 33 is in sliding contact with the plate surface of the clutch actuating plate 34, and the other end is in sliding contact with the plate surface of the clutch actuating plate 34.
Since the clutch actuating plate 34 and the eccentric cam 33 are integrally rotated with the crank arm 30 and the clutch plate 31 together with the clutch shaft 23, the clutch pin 36 is in contact with the clutch shaft 23. It rotates on a circular locus A about 23, and the tip of the packer moves on a circular locus A, and the tip of the packer moves on a circular locus A.
Immediately before or immediately after the clamping is released, the waste straw transported by the controller is scraped off while wrapping with the side surface of the transport chain 5a, and is scraped into the front surface of the door 14.

When a predetermined amount of waste straw is collected on the switching plate 42 in front of the door 14 in this way, it is transferred to the door 14.
This causes the stop arm 38 to tilt via the link 39 and engage the stepped portion of the clutch actuating plate 34 to stop the clutch actuating plate from rotating, so that when the pin 33b faces the tapered hole 34a, it engages the tapered protrusion 31a. The eccentric cam 33 is then pushed out and fitted into the tapered hole 34a, and the eccentric cam 33 stops in a rearward protruding position.The packer pin 36 is guided along the outer periphery of the eccentric cam 33 together with the ring 32, drawing a circular locus A, and the packer pin 36 rakes the waste straw focused on the focusing section 15 into the binding section 19 at once with the e-trajectory.

Also, since the one-turn clutch 27 of the knotting shaft 26 enters a little later than the operation of the stop arm 38, the needle 10 performs a stringing action, and then when the bill 17 is actuated and knotted, the release arm 2
0 releases the straw bundle by rotating the knot shaft 26 and regulating the link, as in the conventional one.

Furthermore, the bundled straw is tied to the binding part 19 by the packer 13.
When the door pressure is removed and the stop arm 38 leaves the step of the clutch actuating plate 34, the torsion spring 35 urges the clutch actuating plate 34 and the eccentric cam 33 to rotate relative to each other, so that the pin 33b is pushed out. is pushed out, and when the clutch plate 31 rotates and the tapered protrusion 31a engages with the pin 33b, the picker 13 repeats the raking operation of the U locus of raking the straw into the front surface of the door 14.

In addition, when collecting waste straw without tying it and discharging it to the field, the needle 10 is moved to the tying part 19 as described above.
Pull up the door 14 inward and store it, loosen the mounting nut of the door 14, move it backwards and temporarily fix it, rotate the switching plate 18 downward so that it overlaps with the rear surface of the cutter A, and use the clutch lever 24a to lock the clutch at the fixed position. 24
When the straw is cut, the picker 13 rises to the vicinity of the base of the door 14 and stops, and the holding conveyor 5 sends out the waste straw to the discharge passage 40. Also, the fixed position stop clutch 24
If the straw is not cut, the pack car 13 continues to scrape out the waste straw backwards, the waste straw is scraped into the discharge passage 40, and in any case, it is collected on the dropper 41, and each time the amount of collection becomes constant, the dropper 41 is removed. It tilts downward and is released.

If you want to further shred the waste straw, use the clutch lever 24.
When the switch a is turned off, the fixed position stop clutch 24 is disengaged, and the police car 13 rises and stops at a position approaching the base of the door 14.

After that, the opening/closing plate 4 installed at the inlet of cutter A
When 2 is opened, the waste straw discharged from the rear end of the holding and conveying body 5 is shredded by the cutter A and scattered on the field.

As mentioned above, the present invention consists of a triangular support frame in side view by connecting both ends of at least three horizontal rods to each other with connecting members, and the support frame has a substantially vertical front surface. At the same time, the part that forms this approximately vertical surface is attached to the rear of the combine, and the surface formed by the upper horizontal rod and the rear horizontal rod is a rear downward slope, and this slope is configured. The transmission case of the bundling device was attached to the upper and rear cross bars of the combine, and the cutter was installed below the bundling device inside the support frame, so the straw discharged from the combine threshing device was transferred between the upper bundling device and the lower one. It is possible to selectively supply the straw to the cutter for bundling or shredding, but the support frame to which the straw removal processing device is attached is connected to the threshing device at the front part of the support frame, which is a substantially vertical surface. It can be firmly attached to
The bundling device intermittently rakes in the straw and releases the bundles, and is supported at a high position above the cutter, so it vibrates greatly during operation, but the support frame is firmly attached to the threshing device as described above. In the installed state, among the horizontal rods connected in a triangular shape by the connecting member when viewed from the side, the front and rear parts of the binding device are supported by the upper horizontal rod and the rear horizontal rod, As a result, even though the front part and the rear part protrude greatly from the threshing device in a cantilevered manner,
It can be supported in an extremely stable state by the rear horizontal rods that are connected to the upper and lower horizontal rods in the front by connecting members, respectively.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention,
Fig. 1 is a side view of the combine, Fig. 2 is a side view of the main parts, Fig. 3 is a plan view of the same, Fig. 4 is a developed cross-sectional view of the transmission device, Fig. 5 is a cross-sectional view of the drive device of the police car, FIG. 6 is an exploded perspective view of the same as above, and FIG. 7 is an operational view of the pack car. 1... Threshing device, 6... Support frame, 7a, 7b,
7c...Horizontal rod, 9...Transmission case, a...Strut,
A... cutter, B... binding device.

Claims (1)

[Scope of utility model registration request] Both ends of at least three horizontal rods are connected to each other with connecting members to form a triangular support frame when viewed from the side, and the front surface of the support frame is made substantially vertical. The part that forms a substantially vertical surface is attached to the rear of the combine, and the surface formed by the upper horizontal rod and the rear horizontal rod is a downward slope at the rear, and the upper and rear horizontal rods that make up this slope are A support frame for a waste straw processing device in a combine harvester, characterized in that a transmission case of the bundling device is attached to the tying device, and a cutter is attached below the bundling device inside the support frame.