JP2001258364A - Combine grain stalk transfer device - Google Patents

Abstract

(57) [Summary] An object of the present invention is to prevent cereal stems, straw chips, and the like carried around by a transfer chain from being wound around a winding prevention collar. The cutting culm is transferred by a transfer chain (8) spanned between a lower drum (6) and an upper sprocket (7) provided in a transfer frame (5) and supplied to a threshing machine for threshing. On the outer diameter portion of the anti-winding collar 9 provided on the side of the upper sprocket 7 and on the side facing the rotation direction of the upper sprocket 7, an L-shaped or straight-shaped scraper 10 is provided in a side view. Was.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention transfers a cut culm by a transfer chain which is hung between a lower drum and an upper sprocket provided in a transfer frame, and supplies the cut culm to a threshing machine for threshing. This is a technique in which a scraper having an L-shape or a straight shape in a side view is provided on an outer diameter portion of a winding prevention collar provided on a lateral side of the upper sprocket, on a side facing the rotation direction of the upper sprocket. It can be used as a grain culm transfer device for combine harvesters.

[0002]

2. Description of the Related Art At the time of harvesting work for harvesting pied cereal culm using a combine, the culm harvested by a reaper provided at the front of the combine is mounted on a transfer frame and supported by a shaft. It is taken over by the transfer chain spanned between the drum and the upper sprocket, transferred to the upper part in the transfer frame by the transfer chain, supplied to the threshing machine, and threshed by the threshing machine,
Threshed and sorted kernels are temporarily stored in this combine.

At the time of this harvesting operation, the upper sprocket is freely rotatable and rotatable beside the upper sprocket in order to prevent cereal stems, straw chips, etc. from being wound around the upper support shaft supporting the upper sprocket. The wrapping-prevention collar provided in the above-mentioned section prevents the wrapping of the cereal stems, straw wastes and the like, and performs the harvesting operation.

[0004]

In order to prevent cereal stalks, straw chips, and the like carried around by the transfer chain during the transfer to the upper part from being wrapped around the upper support shaft, the wrapping prevention is provided so as to be freely rotatable. Wrap around the transfer collar, and this wrap prevention collar may be in a fixed state, so that the transfer chain derails or sticks to the side,
In addition, the driving belt sometimes slips, but the present invention is intended to solve these problems.

[0005]

For this purpose, the present invention transfers the cut culm by wrapping around a lower drum 6 of a transfer start end and an upper sprocket 7 of a transfer end provided inside a transfer frame 5. In a combine provided with a transfer chain 8, a winding prevention collar 9 on the side of the upper sprocket 7, and a threshing machine 12 for threshing by receiving the cut culm from the transfer chain 8, etc. On the side facing the rotation direction of the upper sprocket 7 on the outer diameter portion of the attachment preventing collar 9, a scraper 10 having an L-shape in a side view or a scraper 10 having a straight shape in a side view is provided. The feature is the structure of the combine grain culm transfer device.

[0006]

The harvesting operation for harvesting the trichomes with the combine is performed by mounting the grain stalks harvested by the reaper provided at the front of the combine with the lower drum 6 provided inside the transfer frame 5 and supported by a shaft.
The chain is taken over by a transfer chain 8 spanned over the upper sprocket 7, transferred to an upper portion of the transfer frame 5 by the transfer chain 8, and supplied to a threshing machine 12.
The threshed, threshed and sorted kernels are temporarily stored in this combine.

At the time of this harvesting operation, the floating of the upper sprocket 7 is carried out in the lateral direction of the upper sprocket 7 in order to prevent wrapping of the grain stalk, straw waste, and the like being transferred to the upper support shaft for supporting the upper sprocket 7. The wrapping prevention collar 9 rotatably provided prevents the cereal stalks and straw chips from being wrapped, but the cereal stalks and straw chips carried by the transfer chain 8 prevent the wrapping. The upper sprocket 7 at the outer diameter of the winding prevention collar 9.
Is removed by a scraper 10 having an L-shape in a side view or a scraper 10 having a straight shape in a side view provided on the side opposed to the rotation direction of, and the upper surface of the scraper 10 is slid, and the collar 9 for winding prevention is removed. The harvesting work is performed while falling to a position distant from the drive unit of the section and preventing wrapping of these grain stalks, straw chips, and the like.

[0008]

As described above, grain stalks, straw chips and the like to be wound around the winding prevention collar 9 are cut by the scraper 10 to prevent winding. In addition, the grain stalks and straw scraps carried by the transfer chain 8 have a cut surface of the scraper 10 in the carried flow direction, and therefore, the grain stalks and straw scraps carried around. By sliding on the upper side surface of the scraper 10 and dropping to a position distant from the drive unit, winding can be further prevented.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. The lower drum 6 of the transfer start end provided in the transfer frame 5 of the grain culm transfer device 4 for transferring the cut culm cut by the cutting blade device 19a of the reaper 3 in front of the traveling device 2 of the combine 1; In this configuration, a transfer chain 8 is provided so as to extend over the driving upper sprocket 7 at the end portion. The grain culm transfer device 4 provided with a scraper 10 and the like for removing a grain stalk, a straw debris, and the like wrapped around a wrap prevention collar 9 provided on the side of the upper sprocket 7 to prevent wrapping is shown. Will be described.

A traveling device 2 having a pair of left and right traveling crawlers 2a for traveling on the soil surface is disposed below a traveling platform 11 of the combine 1 and a reaper 3 is disposed above the traveling platform 11 above. A threshing machine 12 is provided for receiving and supplying threshed culm transferred by the corn culm transfer device 4 of the present invention, and threshing. The threshing machine 12 selectively collects threshed grains and temporarily stores the grain. Is mounted on the right side in plan view.

An operation room case 18 is provided on the threshing machine 12 side.
The operation room 18a formed by the above is provided. In the operation room 18a, an operation device 14 for performing a start operation, a stop operation, an adjustment operation, and the like of each part of the combine 1 and a cockpit 15 on which a pilot operator rides are provided. At the bottom of the cockpit 15,
An engine 16 is mounted on the upper side surface of the traveling undercarriage 11, and a grain storage tank 13 is installed on the rear side. These traveling device 2, reaper 3, threshing machine 12,
This is a configuration in which the body 1a of the combine 1 is formed by the engine 16 and the like.

A vehicle speed sensor 17a for detecting a traveling vehicle speed based on the number of outputs is provided in a transmission path of a traveling transmission case 17 mounted on a front end of the traveling chassis 11. In the front part of the traveling device 2, an operation room 18
A reaper 3 is provided on the front side of a as shown in FIGS.
The reaper 3 includes, in order from the front end, a weeding body 19 for separating the raised culm, a hexagonally rotatably supported raising device 20 for rotating and raising the separated cereal stem, and a raised grain. A cutting blade device 19a for cutting a culm, and a scraping transfer device 2 provided with a scraping finger 21a in the form of a roll for rotating the cut stalks and cutting the stalk from both right and left sides toward the center.
1 and a grain stalk transfer device 4 for transferring the stalked grain stalks to a takeover upper part. The grain stalk transferred to the upper part by the grain stalk transfer device 4 of the reaper 3 is a threshing machine 12.
And threshing in the threshing machine 12.
The mower 3 is configured to be able to move up and down on the soil surface by operating the telescopic cylinder 22 driven by hydraulic pressure.

As shown in FIG. 5, the pulling device 20 has a structure in which a front support rod 23b is provided rotatably on the left and right rear support rods 23a. On the upper surface of the rear support rod 23a, there is provided a rear rotation rod 24a projecting upward and rotating back and forth, and on the upper surface of the front support rod 23b, a front support plate 24b is provided. Between the rod 24a and the front support plate 24b, there is provided a front-rear cylinder 25a for controlling the raising and lowering device 20 to move back and forth. The base of the rear support rod 23a is rotatable so that the center of the rear support rod 23a in the front-rear direction and the left and right plates 26 on the left and right sides forming the transfer frame 5 of the grain culm transfer device 4 are formed. An upper and lower cylinder 25b for controlling the vertical movement of the raising device 20 is provided between the upper and lower ends.

At the front end of the front support rod 23b, there is provided an ultrasonic type grain culm sensor 27 for detecting the height (culm length) from the field scene to the tip of the erected grain culm.
Is input to the control device 28, and based on this input value, the control device 28 controls the operation of the front and rear cylinders 25a and the up and down cylinders 25b. The position of the raising device 20 is controlled to an optimum position with respect to the culm length of the grain culm to be cut and cut, so that the loss of the grain in the raising device 20 portion (head portion) is reduced.

[0015] Thereby, according to the culm length of the grain culm to be cut,
By automatically controlling the position in the front-rear direction and the position in the vertical direction of the raising device 20 for raising the grain stem, it is possible to greatly reduce the loss at the head portion of the combine 1. The cereal stalks which have been squeezed by the squeezing fingers 21a of the squeezing transfer device 21 and transferred from the left and right sides to the center portion are transferred from the stalk transfer device 4 which is provided in an inclined state from the lower front to the upper rear. This is supplied to the feed port 31a of the section, is transferred from the lower front part to the upper rear part by the grain culm transfer device 4, and is supplied to the threshing machine 12 from the discharge port 31b of the transfer end part.

As shown in FIGS. 1 to 4, the grain culm transfer device 4 includes upper and lower plates 29, 29 on both upper and lower sides, and left and right sides on both right and left sides.
The right and left plates 26, 26 and the reinforcing plates 26a, 26a provided on the inner side surfaces of the left and right plates 26, 26 form a box-shaped transfer frame member 5. A lower support shaft 30a is rotatably supported at the lower end of the grain stem transfer start end of the box, and an upper support shaft 30b is rotatably pivoted at the upper end of the grain stem transfer end. It is a structure provided to support. The lower end of the transfer frame 5 is provided with a supply port 31a for receiving the supply of cereal stems from the scraping transfer device 21, and at the upper end,
A discharge port 31b for discharging and supplying grain culm from the transfer frame 5 to the threshing machine 12 is provided.

The lower support shaft 30a has a structure in which a cylindrical lower drum 6 is pivotally supported. The upper support shaft 30b is provided with a predetermined interval in the left-right direction to drive the upper sprocket. The lower drum 6 and the upper sprockets 7, 7 are provided with transfer chains 8, 8, respectively, so that the transfer chains 8, 8 are provided. In the meantime, the transfer frame member 5 having a configuration in which a transfer lug 32 having an L-shape in side view for transferring the grain stem is attached to each chain plate 8a of each transfer chain 8 at predetermined intervals by bolts or the like. The grain culm supplied from the port 31a is transferred to the upper side of the lower plate 29 of the transfer frame 5 by the transfer lugs 32 of the transfer chains 8, and is supplied into the threshing machine 12 from the discharge port 31b. Configuration.

Left and right plates 2 on both right and left sides of the transfer frame 5
6 and 26 and the outer surface of the upper sprocket 7
As shown in the figure, a predetermined gap (L) portion is provided in the left-right direction. The gap (L) has a configuration in which a collar 9 for preventing winding is provided in order to prevent winding of cereal stems, straw chips, and the like around the upper support shaft 30b.

As shown in FIGS. 2 to 4, the winding prevention collar 9 has a cylindrical receiving boss 7a provided on the outer surface of the upper sprocket 7 and a left and right side plate 26, 26 of the transfer frame 5. A configuration in which a predetermined gap is provided in the outer diameter portion of the cylindrical receiving cylinder 33 provided on the inner side surface, and is provided so as to be pivotally supported in a floating state, thereby preventing wrapping of cereal stems, straw chips, and the like on the upper support shaft 30b. It is.

As shown in FIGS. 2 and 4, a scraper 10 having an L-shaped side surface is provided at the outer portion of the anti-wrap collar 9 in the direction of rotation of the upper sprocket 7. And a small gap is provided in the outer diameter portion of the winding prevention collar 9 on the side facing the winding. The scraper 10 is attached to the lower part of the upper sprocket 7 by a frame pipe 34 provided between the left and right plates 26 of the transfer frame 5.
The U-shaped mounting tool 35 is attached to the L-shaped scraper 1.
0 is inserted into insertion holes 10a, 10a provided in one side portion of the ０0 ’and attached with a nut 35a.

When the grain culm, the straw waste, and the like transferred by each transfer lug 32 provided on each chain plate 8a of each transfer chain 8 are carried around and are to be wound around the winding prevention collar 9. , These grain culms, straw waste, etc.
The grain culm, the straw debris, and the like removed by sliding on the upper surface of the scraper 10 and dropping to a position away from the drive unit near the upper sprocket 7 are removed. It is a configuration that prevents wrapping of stalks and straw chips.

When the scraper 10 has a straight shape, a mounting plate 36 is provided on the upper surface of the frame pipe 34 as shown in FIG. 3, and the straight scraper 10 is attached to the mounting plate 36 with bolts and nuts. The scraper 10 has a small gap between the outer diameter of the anti-winding collar 9 and the outer diameter of the anti-winding collar 9 on the side facing the rotation direction of the upper sprocket 7. It is a configuration provided. This scraper 10 in a straight shape
Are the same as those of the L-shaped scraper 10.

As shown in FIGS. 6 and 7, between the transfer chain 8 and the outer diameter portion of the lower drum 6 around which the transfer chain 8 is supported by the lower support shaft 30a. A vibration damping member 37 made of an elastic material is attached and provided to prevent the interference noise of the transfer chain 8, prevent the contact sound of the crop directly contacting the lower drum 6, and prevent the crop from contacting the lower drum 6. Supply port 31
This is a configuration for preventing scattering from a, preventing damage to harvested products, and the like.

Thus, it is possible to prevent the interference sound of the transfer chain 8 and the contact sound of the harvested product, and also prevent the harvested product from being scattered or damaged. On the rear side of the grain storage tank 13, a discharge support cylinder 38 having a vertical transfer spiral 38 a provided therein is rotatably supported in a substantially vertical posture, and the upper end of the discharge support cylinder 38 has a full length. Has a discharge auger 39 in which a discharge spiral 39a for discharging grains outside the machine extending over the front and rear length of the combine 1 is contractably provided, and the discharge auger 39 is arranged in a front-rear direction so as to be retractable, vertically rotatable, and left and right. is there.

[Brief description of the drawings]

FIG. 1 is an enlarged side view of a part of a cereal culm transfer device section.

FIG. 2 is an enlarged sectional side view of a scraper portion.

FIG. 3 is an enlarged side sectional view of a scraper portion.

FIG. 4 is an enlarged plan sectional view of a scraper portion.

FIG. 5 is an enlarged side view of the raising device.

FIG. 6 is an enlarged side sectional view of a lower drum portion.

FIG. 7 is an enlarged plan sectional view of a lower drum portion.

FIG. 8 is an overall side view of the combine.

[Explanation of symbols]

 Reference Signs List 5 transfer frame 6 lower drum 7 upper sprocket 8 transfer chain 9 winding prevention collar 10 scraper 12 threshing machine

Claims (2)

[Claims] 1. A transfer chain 8 for transferring a harvested culm by passing over a lower drum 6 at a transfer start end and an upper sprocket 7 at a transfer end portion provided in a transfer frame 5 and a side of the upper sprocket 7. Winding collar 9 and the transfer chain 8
In a combine provided with a threshing machine 12 and the like for threshing by receiving the supply of the harvested grain culm from the outside, the side facing the rotation direction of the upper sprocket 7 at the outer diameter portion of the winding prevention collar 9 has a side view. An combine-shaped grain culm transfer device provided with an L-shaped scraper 10. 2. A scraper 10 having a straight shape in a side view on a side of the outer diameter portion of the winding prevention collar 9 facing the rotation direction of the upper sprocket 7.
Combine grain culm transfer device characterized by having a stalk.