JP2547516Y2 - Grain stalk scraping device in combine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Field of Industrial Use The present invention relates to a grain stalk scraping device in a combine for cutting and threshing grain stalks and other agricultural products.

(B) Conventional technology Conventionally, a herbaceous body and a cereal stem raising device corresponding to a row of three or more cereal stems are attached to a front portion of a cutting frame, and a cutting blade is attached to a lower rear portion of the lower portion of the grain stem raising device. Above the cutting blade, a plurality of vertical grain culm scraping paths are provided spaced apart in the horizontal direction, and a horizontal transport device is provided at the rear thereof, and the grain culm transported laterally is threshed by the inclined transport device. In a combine adapted to be transported and supplied to the apparatus, a combine with a stalk scraping belt with a lug extending only forward is stretched above a scraping wheel pivotally supported on the side of the vertical scraping path. Grain stalk scraping devices are already known.

Also known is a grain stalk raking device in a combine provided with a spike-side raking chain having a tine that is raised and protruded above the side of the vertical raking path on the side of the raking path and has no flexibility. Have been.

(C) Problems to be Solved by the Invention Among the known cereal stalk scraping devices in the above-mentioned combine, in the former, the stalk of the harvested cereal stalk is insufficiently scraped, and only the root of the stock is squeezed by the protrusion of the scraping wheel. Are forcedly conveyed to the horizontal conveyance path, which causes problems such as disturbed culm posture and uncertainty of delivery, and in the latter, the tine of the ear-side scraping chain rises and protrudes in the second half of Because the spike side is locked, the culm is disturbed in a disturbed posture, and since the tine is strong, the spike delivery to the horizontal transport device is carried out intermittently and the culm inheritance is performed. There were problems such as inconsistency.

(D) Means for Solving the Problems In the present invention, a herbaceous body and a cereal stem raising device corresponding to three or more cereal stem rows are attached to the front part of the cutting frame, and the lower part of the cereal stem raising device is attached. In a combine equipped with a cutting blade mounted rearward, a plurality of vertical raking paths spaced apart in the horizontal direction above the cutting blade, and a horizontal conveying device provided in a rear portion thereof, A raking wheel is pivotally supported at the lower side of the path, and a small-diameter V pulley is provided above and below the raking wheel with a large-diameter V pulley sandwiched between the V pulleys. A scraping belt is stretched so as to have a substantially rhombic shape in a plan view, and the flexible lugs are projected on a path from a vertical scraping path to a rear horizontal conveying path to act on a transported grain culm. By doing so, from the relatively early stage of raising the cereal stem to the horizontal transport path formed by the rear horizontal transport device In the meantime, the flexible rugs provided on the stalk scraping belt continuously lock the grain stalks without disturbing the posture of the transported grain stalks, and ensure that the grain can be transferred to the horizontal transport device, and the grains are transferred at the time of delivery. The above problem was solved by pushing the stem of the culm softly into the horizontal transport path.

(E) Action A plurality of standing trichomes are weeded by a weeding body, are raised by a cereal stalk raising device, and are raked rearward by a cereal stalk raking device that forms a cereal stalk raking path. Reaped by When the grain stalk is scraped by the scraping device, the root of the stock is scraped by a scraping wheel, and at the initial stage, the stem part is the tip of the flexible lug of the stem scraping belt protruding into the vertical scraping path. At the two sides from the front end to the rear end of the substantially rhombic shape in plan view. And is softly distributed to the horizontal transport device while being flexed appropriately in accordance with the condition.

The grain culm laterally conveyed to the side by the horizontal conveying device is inherited by the slanted conveyance body at the base of the stock and the spike side, and is conveyed to the supply unit of the threshing device diagonally upward.

(F) Embodiment The present invention will be described with reference to a five-row cutting combine shown in the drawings. Reference numeral 1 denotes a threshing device mounted on the left side of a machine base 3 having a pair of right and left crawlers 2, not shown on the right side. Are, in order from the front, a cabin surrounding the operation panel and driver's seat,
A grain tank and the like are arranged, and a support 4 erected at the front of the machine base 3 is provided with a rear part of a pre-processing frame composed of a main frame 5 and a mowing frame 6 fixed to the front thereof, in a lateral direction. An up-and-down hydraulic cylinder 8 is interposed between the front of the machine base 3 and the main frame 5 so as to be vertically rotatable by a support shaft 7.

At the front end of the reaping frame 6, six weeds 9 are attached so as to weed five cereals, and five grains are slanted obliquely rearward and upward from the rear. A cutting blade 11 is attached to the lower rear of the culm raising device 10. Above the cutting blade 11, a raking wheel 12 composed of five star wheels is pivotally supported by a vertical axis 13, and the right end when viewed from the rear. Are independently separated by an inner vertical scraping path A (not shown), and the other four scraping wheels 12 are engaged with each other to form two vertical scraping wheels. The path A is formed, and is supported on a large-diameter V pulley 15 attached to the upper end of the longitudinal axis 13 and a bracket 20 extending forward from the shaft holding cylinder, which is located on the right side of the paired scraping wheel 12. A stem pulling belt 17 with a flexible lug is stretched over a small-diameter V pulley 16 and the upper end of the longitudinal axis 13 of the scraping wheel 12 meshed on the left side thereof. V attaching a pulley 15, and pivotally supports the respective small-diameter V pulleys 16, 22 to a bracket 20, 21 extending from the shaft holding cylinder to diagonally forward and backward,
These small diameter V pulleys 16 and 22 and the large diameter V pulley 1
5, a stalk scraping belt 25 with a flexible lug is stretched so as to have a substantially rhombic shape in a plan view, and slightly from the rear ends of the sprocket 26 and the bracket 21 attached to the lower portion of the central longitudinal axis 13. Stretching stock chain 28 on the ring 27 that is pivoted rearward,
Sprocket mounted below the vertical axis 13 of the scraping wheel 12 at the right end
A sprocket chain 31 is stretched between the sprocket 26 and a sprocket 30 crossing the lateral transport path to be described later, and the sprocket 26 attached to the longitudinal axis 13 of the left-side scraping wheel 12 and the end of the lateral transport path. The sprocket 34 of the shaft 33 that rises from the transmission case 33a provided on the outside is also driven by extending the stock raking chain 35 so that the raking wheel 12 on the left end is sequentially meshed with the right side thereof. The scraping wheel 12 is driven to rotate.

The shaft 23 of the rear V-pulley 22 extends upward and has a drum 36 (see FIG. 1 (b)) having a finger 36a protruding on the vertical scraping path side at the upper end thereof or a star wheel.
37 (see FIG. 1 (a) and FIG. 2).

The horizontal transport device B is composed of an upper / lower horizontal transport belt 38, 39 composed of a chain with undulating tine and a lower horizontal transport belt 40 composed of a chain with protrusions. A sprocket 41 is attached to a shaft 43 that stands upright from the gear case 42 in parallel with the longitudinal axis 13 and the like, and a driving sprocket 45 around the return-side intermediate portion of the middle and horizontal transport band 39 is connected to the shaft 43 via a universal joint 48. Middle shaft inclined backward
A shaft 47, which is mounted on the upper part of 44 and has a driving sprocket 46 wound around the left rear part of the upper horizontal conveying belt 38, mounted on the upper end, has a sprocket 47a also at the lower end, and meshes the sprocket 47a with the middle horizontal conveying belt 39. As a result, the upper horizontal transport belt 38 is driven, only the transfer end of the lower horizontal transport belt 40 extends rearward, and the gear case 42 includes a pipe 5a that is one of the constituent members of the main frame 5. Of the transmission shaft.

In addition, the spike side raising space at the front of the upper and lower horizontal transport bodies 38 and 39 can be enlarged, and the upper and middle horizontal transport belts can be further increased.
The forward descending angle of the tine that rises and protrudes on the conveying action side (front side) from 38 and 39 is reduced, and the culm to be laterally conveyed is less likely to come off or fall off the tine. In addition, the lower horizontal transport zone 40 drives the sprocket 30 described above.

Further, as shown in FIG. 2 and FIG. 3, the upper part of the shaft 33 rising from the left transmission case 33a has an outer side between the upper stage and the rearward end of the suspended horizontal transport bodies 38, 39 at the transport end. The stalk part transfer chain 29 facing from is stretched, and a number of tines 29a attached to this stand upright at the front as shown by the trajectory 29b, fall down in the opposite direction to the rotation direction at the rear, and join the grains. The stalk of the culm is received and the transport direction is changed backward.

The inclined transfer device C is composed of a spike-side transfer chain 50 provided with a tine and a guide rod opposed thereto, and a stock transfer chain 51 provided with a sandwiching rail opposed thereto. As shown in Fig. 2, the lower horizontal transport zone is located at the end of the horizontal transport.
The rear end portion of the rear sprocket is supported on the support shaft 7 via a tilt shaft and a gear case so as to be vertically tiltable. It is inclined to the cabin 3a side.

52 is an inverted U-shaped rod for supporting the sandwiching rail and the guide rod, 53 is a guide plate attached to the back of the grain stalk raising device 10 and forming the front of the horizontal transport path at the rear between the vertical scraping paths. It is.

In the above-mentioned combine, the cereal culm weeded by the weeding body 9 is raised by the cereal stalk raising device 10, and
With the stock wheel 12 and stock wheel scraping chains 28, 31, 35
The upper part is raked by the stalk scraping belts 17 and 25, and the ear side is raked by the rotation of the star wheel 37 (or drum with tine), during which the cutting blade 11 cuts the base.

The rugs 25a of the series of stalk scraping belts 25... Extending from the upper portion of the scraping wheel 12 forward and rearward in a substantially rhombic shape in plan view are stable napped immediately after the start of raising. The lower part of the cereal stem is locked, and the two sides from the front end to the rear end are locked continuously. In this state, the culm is continuously locked and transported to the diagonally upward and backward horizontal transport path. Then, the horizontal transfer device B
While flexing according to the resistance of the stalk part received by the stalk, it is pressed naturally to the horizontal conveying device B and delivered in an orderly manner.

In this way, the grain stalks squeezed from the vertical scraping path A have upper, middle, and lower horizontal transport zones 38, 39,
40, but at that time, the shaft 4
7 is tilted backward with respect to the shafts 43 and 13, etc., so it is received in a desirable standing posture and merges sequentially while being conveyed laterally.
The transfer surface is wrapped with 35 and is tied to the rearward part of the lower horizontal transfer belt 40, which is in the same direction.
51, and the ear side is between the upper and lower horizontal transfer belts 38 and 39, or by the upper side (for long culm)
In this state, after being conveyed obliquely rearward and upward, the root of the stock is inherited by the feed chain 1a and the pinching rail of the threshing device 1, and the ear side is inserted into the supply port and threshed. You.

(G) Effects of the present invention As described above, the present invention attaches the weeding body 9 and the cereal stem raising device 10 corresponding to three or more cereal stem rows to the front of the cutting frame 6, and A cutting blade 11 is mounted on the lower rear of the combiner, a plurality of vertical scraping paths A are arranged at intervals above the cutting blade 11, and a horizontal conveying device B is provided at the rear of the combiner. A raking wheel 12 is pivotally supported at the lower side of each vertical raking path A, and small-diameter V pulleys 16 and 22 are provided above and below the raking wheel 12 with a large-diameter V pulley 15 interposed therebetween. Stem scraping belt 2 with flexible lug 25a between these V pulleys
5 is stretched so as to have a substantially rhombic shape in a plan view, and the flexible lugs 25a are projected on a path from the vertical scraping path A to the rear horizontal conveying path to act on the transported grain culm. As a result, the stem scraping belt 25 stretched in a substantially rhombic shape in plan view along the vertical scraping path A can be provided around the grain stem raising device 10 immediately after starting to be raised. The grain is locked by the flexible lug 25a, and thereafter, is continuously conveyed along the path while maintaining the locked state from the front end to the rear end of the approximately rhombic shape in plan view to the rear horizontal conveyance path on two sides. As a result, the raising posture of the grain stalk is not disturbed, so that the grain can be swept down to the horizontal transport path and reliably delivered.

Further, in the terminal revolving portion of the stem portion scraping belt 25, the flexible lugs 25a disperse the grain stalk while flexing according to the resistance of the grain stalk stem portion received by the horizontal transport device B, and softly. It can be pressed and handed over in order.

[Brief description of the drawings]

The drawings show an embodiment of the present invention, wherein FIGS. 1 (a) and 1 (b) are longitudinal sectional views in which the rear part of the combine is omitted, and FIG. 2 is the same as FIG. FIG. 3 is a plan view of the left side, and FIG. 1 ... threshing device, 9 ... herbaceous plant, 10 ... grain stem raising device,
12 …… Scraping wheel, 25 …… Stem scraping belt, 25a …… Flexible lug, 28,31,35 …… Stock milling chain, 43,47 …… Wheel, 41,
45, 46 drive sprocket, A: vertical scraping path, B: horizontal transport device, C: inclined transport device

Claims (1)

(57) [Scope of request for utility model registration] A grass cutting body corresponding to a row of three or more grains and a grain stem raising device are attached to a front part of a cutting frame, and a cutting blade is provided at a lower rear portion of the grain stem raising device. Attached, the cutting blade 11
A plurality of vertical scraping paths A spaced apart in the horizontal direction, and a horizontal conveying device B provided at the rear of the combine. A small-diameter V pulley 16, 22 is provided before and after the large-diameter V pulley 15 above and below the raking wheel 12, and a stem lug with a flexible lug 25a is provided between each V pulley. Belt 25 is stretched so as to have a substantially rhombic shape in a plan view, and the flexible lugs 25a are projected on a path from the vertical scraping path A to the rear horizontal conveying path, so that the flexible lugs 25a A grain stalk scraping device in a combine, wherein the device is made to act.