JPH0610758Y2 - Straw scraping device for binding machine in combine harvester - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Industrial Field of the Invention The present invention provides a straw scraping device at the end of a straw-conveying chain so that the conveyed straw can be scraped into a binding machine for binding. The present invention relates to a straw scraping device for a binding machine in a combine harvester.

Conventional technology Generally, a straw scraping device is provided at the transport end of a straw transport chain provided at the rear part of the machine body, and the straw after the threshing process carried from the threshing machine is swept to the rear binding machine by the claws. There is known a combine that is scraped and bound by a binding machine so as to discharge straw outside the machine.

Problems to be solved by the present invention By the way, the straw after the threshing treatment is carried by the straw carrying chain because the straw culm on the tip side is thinner and softer than the straw culm on the plant side. In many cases, the tip side of straw is delayed. Then, in the conventional straw scraping device provided at the transport end portion, the straw that has been transported with the tip side delayed is scraped into the binding machine in the same posture,
When the scraped straw is converged in the bundling chamber, there is a problem in that the roots are aligned, so that the straw cannot be efficiently bound and discharged outside the machine.

The present invention has been made in view of the above circumstances in order to solve these drawbacks, and the straw conveying chain automatically conveys the straw conveyed in a posture in which the tip side is delayed. By swaging into the binding machine while correcting to an appropriate straw posture, it is possible to efficiently bind the bundled straw in a well-rooted state and release it to the outside of the machine. It is intended to provide a device.

Means for Solving Problems The technical means taken by the present invention to solve the above problems is to provide a straw scraping device at the end of conveyance of a straw conveying chain to remove the conveyed straw. In a combine that is scraped into a binding machine for binding, the straw scraping device is provided on both left and right sides of the transport end portion of the straw transport chain so that the scratches of both straw scraping devices are seen in a side view. The feeding start end overlaps with the feeding end of the straw conveying chain, and the feeding start side of the straw sweeping device located on the tip side is better than the straw sweeping device located on the root side. It is characterized by being located in the front.

Therefore, according to the present invention, when the straw is transported by the straw transport chain, the transport end portions of the straw transport chain are viewed from the left and right sides when the transport end portions of the straw transport chain are sandwiched. The straw discharged at the leading end of the scraping, which has been overlapped with, is scraped into the take-up binding machine to bind the straw. Even if the straw conveyed by the straw conveying chain is conveyed in a delayed posture on the tip side, the scraping start end portion of the straw scraping device located on the tip side is located on the root side. Since the tip side of the straw is scraped from the front of the scraping start side of the straw scraping device from the conveyance side, the delay on the tip side is automatically corrected to the proper straw posture and taken over by the binding machine. It is possible to put in the straw, which is bundled in a good state of rooting, and to efficiently bundle the discharged straw and discharge it to the outside of the machine.

Embodiment Next, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
Reference numeral 1 denotes an straw conveying chain disposed at the rear part of the combine, where a straw cutter 2 is provided below the conveying end of the straw conveying chain, and a straw binding machine 3 is provided behind the straw cutter 2, By switching operation of the moving switching plate 4, it is possible to switch between shredding work and bundling work to process straw. Then, during the bundling work with the switching plate 4 moved downward, the straw discharged by the straw transfer chain 1 is transferred along the upper surface of the switching plate 4 onto the rear guide plate 5 as it is, and the packer swings back and forth. It is pushed into the binding chamber 7 by 6. Then, when the door 8 detects that a predetermined amount of straw moth has been gathered, the needle 9 winds a binding cord around the straw and binds it together.
0 operates and discharges the bound straw outside the aircraft.

At the end of the transport of the straw transport chain 1, the straw transport chain 1
The straw scraping devices 11 and 12 are provided on both the left and right sides, and the straw carried by the straw carrying chain 1 is used to scrape the straws 13 and 13 of the straw scraping devices 11 and 12 ... Are scraped toward the binding chamber 7. The straw scraping device 11 includes a pawl mounting chain 17 between a drive sprocket 15 fixed to a drive shaft 14 located above the entrance of the bundling chamber 7 and a floating sprocket 16 provided on the straw conveying chain 1 side. It is formed by suspension. That is, a plurality of sweeping claws 13 are pivotally attached to the claw mounting chain 17 so as to be able to rise and fall at predetermined intervals, and the sweeping path of straw is provided on the proximal end side of the sweeping claws 13. Along the nail guide 18
When the pawl mounting chain 17 is rotated in the direction of the arrow A by the rotational drive of the drive shaft 14, the scraping pawl 13 abutting against the pawl rising guide 18 stands up to move from the straw conveying chain 1. The straw is scraped into the binding chamber 7. Then, the scraping claw 13 is detached from the claw rising guide 18 at the end of the scraping path, and moves upward along the drive sprocket 15 to return to the scraping start end side. Reference numeral 19 is a scraping cover. The other straw sweeping device 12 is also configured in the same manner as described above, and the sweeping start ends of the sweeping claws 13, 13 of both straw sweeping devices 11, 12 convey straw in a side view. It is overlapped with the end of conveyance of chain 1.

Then, as shown in FIG. 3, the device 1 for scraping straw on the tip side.
1 is that the scratching action length L ₁ is made longer than the action length L ₂ by the straw scraping device 12 on the plant side, so that the scratching start end of the straw scratching device 11 located on the tip side Only the part is located in front of the hand side of the straw scraping device 12 on the stock side.

In the above-mentioned configuration, when performing the straw bundling work, if the switching plate 4 is moved downward, the straw transferred by the straw transfer chain 1 is rearward as it is along the upper surface of the switching plate 4. Be transported. Then, the scraping claws 13, 13 ... Pivotally attached to the rotating claw mounting chain 17 stand up from the straw scraping devices 11, 12 provided at the transporting end portion of the straw transporting chain 1 in a side view. Since it is overlapped with the transport end portion of the straw transport chain 1, the transported straw is reliably taken over and scraped toward the binding chamber 7, and is pushed into the binding chamber 7 by the back and forth swing of the packer 6, and then When the sensing door 8 senses that a predetermined amount has been pushed in, the collected straw is bound in the binding chamber 7 and discharged outside the machine.

Then, when the straw a is conveyed by the straw conveying chain 1, even if the weak tip side is conveyed in a delayed posture as shown in FIGS. 2 to 3, it is located on the tip side. The scraping start end portion of the straw scraping device 11 scrapes the delayed tip end first from the front side on the conveyance side by a length corresponding to the scraping action length L ₁ , and automatically corrects the straw posture. Since it can be handed over while maintaining the proper straw posture,
It can be tied up to perform binding work.

Advantages of the Invention In summary, the present invention provides a combine harvester in which a straw scraping device is provided at a transport end portion of a straw transport chain so that the transported straw is scraped into a binding machine and bound. Straw scraping devices are provided on both left and right sides of the transport end part of the straw transport chain so that the scraping start ends of both straw sweeping devices overlap with the transport end part of the straw transport chain in a side view. , Since only the scratching start end of the straw scraping device located on the tip side is located on the front side on the conveying side better than the scraping device located on the root side, the straw transported by the straw transport chain , The straw scraping device provided on both left and right sides of the transport end of the straw transport chain is sure to take over at the sweep start end that overlaps with the transport end of the straw transport chain in side view. It can be scraped into the binding machine. And even if the weak tip end side of straw is conveyed with a delay, among the straw scraping devices provided by sandwiching the straw transport chain, the scratching start end portion of the straw scraping device located on the tip side, Since the tip side of the straw is scraped from the front side of the conveyance side rather than the scraping start end of the straw scraping device located on the root side, it takes over while automatically correcting the delayed straw posture on the tip side. It can be scraped into the binding machine with. Therefore, the straw that has been scraped in an appropriate posture can be tied up in an orderly state with good rooting and discharged to the outside of the machine, so that the binding performance and the discharging performance can be significantly improved.

[Brief description of drawings]

FIG. 1 shows an embodiment of a straw scraping device for a binding machine in a combine according to the present invention. FIG. 1 is an overall side view, FIG. 2 is a plan view of the same as above, and FIG. FIG. 4 and FIG. 4 are longitudinal sectional views of the main part. In the figure, 1 ... straw transport chain, 3 ... binding machine, 11, 1
2 ... A straw scraping device.

Claims (1)

[Scope of utility model registration request] 1. A combine harvester comprising a straw scraping device provided at a transporting end portion of a straw transport chain so that the transported straw is scraped by a binding machine to bind the straws. , The left and right sides of the straw-conveying chain are sandwiched between the both sides, and the side edges of the straw-conveying device are overlapped with the end points of the straw-conveying device and are located on the tip side. A straw scraping device for a binding machine in a combine, wherein only the scraping start end portion of the straw scraping device is located on the front side in the upper hand side of conveyance than the straw scraping device located on the stocker side.