JP2889085B2 - Combine harvester stem culm confluence structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a first raising device for raising a single stem and a pair of stem and culm introduction paths opposed to each other for raising a double stem. The second and third raising devices provided are arranged side by side on the left and right, and the first, second, and second
Behind each of the third raising device, the first, second and third
A scraping rotator is disposed so that the small-diameter gear-shaped second scraping rotator and the large-diameter gear-shaped third squeezing rotator are shifted from the front to the rear of the tooth portions of each other. The stems and stems raised by the second and third elevating devices are fed back by engaging with the stems, and the stems and stems sent behind the second and third scraping rotators are removed. A starting end of a vertical conveying device for conveying to a rear threshing device is provided, and the vertical conveying device is supported so as to be vertically swingable around a horizontal axis near a rear end thereof, and the gear-shaped first 1
A first end of the vertical conveying device, wherein the stem / culm raised by the first raising device is extended over a first axis on which the scraping rotary body is mounted and a second axis located behind the second scraping rotary body. Field of the Invention The present invention relates to a combined harvesting stem and culm structure of a combine wound around an endless swivel band with a projection fed into a section.

[0002]

2. Description of the Related Art Conventionally, in this type of combine harvester stem and culm of a combine, a vertical conveying device is positioned at the lowest position, for example, as disclosed in Japanese Patent Application No. 5-93497 filed by the present applicant. In such a state, the second axis and the rotation axis at the transport start end of the vertical transport apparatus are arranged so as to be laterally shifted when viewed from each other in the axial direction.

[0003]

However, in the above-mentioned conventional structure, the vertical transfer device is located at a position laterally displaced from the second shaft, which is the transfer end portion of the endless rotating belt with projection. Since the rotation axis of the conveyance start end of the conveyance section that holds the original is positioned, the rotation is sent out from the endless rotating band with projections and is surrounded by the second shaft, the second scraping rotary body, and the third scraping rotary body. When the stem / culm that has reached the open space portion moves to the transfer start end of the vertical transfer device that is laterally displaced from the second axis in the space portion, the posture is likely to be disturbed. In particular, when the stem culm is short, it is difficult for the spike to be locked by the vertical transport device or the raising device, so the stalk culm posture is unstable if only the root of the stock is not securely held As a result, it was difficult to carry out the nipping and conveying by the vertical conveying device smoothly. The present invention has been made in view of the above circumstances, and aims to reduce the overall size of the pre-cutting processing unit.
It is another object of the present invention to provide a combined harvesting stem and culm structure of a combine that can smoothly transfer the cutting stem and culm to the vertical transport device even when the stem and stem are short.

[0004]

Means for Solving the Problems] reaper stem稈合flow structure of the combine to the present invention, first causing a strip portion of the stem culm
Raising device and a pair of stems to raise two stems
Second and third pulls arranged with culm introduction paths facing each other
Raising devices are arranged side by side on the left and right, and the first, second, and third
First, second and third scrapes behind each of the raising devices
Rotator, and a small-diameter gear-shaped second scraping circuit
The rolling element and the large-diameter gear-shaped third scraping rotating body are mutually
Occlusion of the teeth so that they transition from front to back
The stems and stems raised by the second and third raising devices in the rear
And the first, second, and second
Move the front end position of the third scraping rotary body in the front-back direction
So that the small-diameter second scraping
First and third swirling rotations of the rotating shaft of the rotating body
The position is set forward of the rotational axis of the body, and the second
Immediately after the rotator, close to the second scraping rotator
Vertical transport device that transports stems and culms to the threshing device in the rear
Of the vertical transfer device, and close the vertical
Supporting vertical swing displacement around the horizontal axis of Kude
, The large-diameter gear-shaped first scraping rotary body was mounted
A first shaft and a second shaft located on the rear side of the second scraping rotary member;
Over the shaft and raised by the first raising device
Endless with projections for feeding stems and stems to the beginning of the vertical conveyor
The rotating belt is wound, and the rotational axis position and the second axis position at the transport start end of the vertical transport device are substantially the same as viewed from the rotational axis center direction when the vertical transport device is located at the lowest position. This is a characteristic configuration. The operation and effect of this characteristic configuration are as follows.

[0005]

In other words, the rotation axis position and the second axis position at the transport start end of the vertical transportation device are set to be substantially the same as viewed from the rotation axis center when the vertical transportation device is located at the lowest position. Since the short culm was introduced and cut, the vertical conveying device was swung to the lowest position so that the stem can be handled deeply. The starting end and the rotating body of the second shaft overlap in the axial direction, so that the transport end of the endless rotating belt with projection and the transport starting end of the vertical transport device overlap. Therefore, the sheet is delivered so that the transfer is started at the transfer start end of the vertical transfer device almost simultaneously with the transfer from the transfer end of the endless rotating belt with projection. In addition, the second scraping
The rotating body has a smaller diameter than the third scraping rotating body.
And the front ends of the first, second and third squeezing rotary members.
Set the position to be almost the same in the front-back direction
The second scraping rotator immediately after the second scraping rotator
And the stalks fed back by the third rotating body
Space is provided, and the space
Of the vertical conveying device so as to approach the second scraping rotary body.
The position of the transport start end allows the first scraping rotary body to move
Relatively wide with culms transported by the endless swivel belt
Collected in a small space and delivered to the vertical transport device.
Left and right than those with only large diameter stalks scraped side by side
The arrangement of each device in the width direction and the front-back direction is compact.
Deliver the culm to the transport start end of the vertical transport device
Can be performed smoothly.

[0006]

Therefore, according to the present invention, when the vertical conveying device is swung to the lowest position as in the case of vertically conveying a short culm stem, the culm is conveyed by the endless rotating band with projection. Since the stem / culm is immediately delivered from the transport end to the transport start end of the vertical transport device, it is easy to avoid a posture disorder when the stem / culm is delivered, and the transport posture is maintained well. Therefore, threshing can be performed well . Sa
In addition, the arrangement of each device in the horizontal width direction and the front-back direction
Can reduce the overall amount of pre-cutting processing.
Become a pact.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 6 shows a combine. This combine is equipped with a threshing device 3, a control unit 4 and the like mounted on a machine frame 2 supported by a pair of left and right crawler traveling devices 1, 1 and swings up and down around a horizontal axis at a front end of the machine frame 2. The cutting pre-processing unit 6 is freely mounted.

As shown in FIGS. 1 to 6, the pre-cutting processing unit 6 includes four fixed weeding tools 7a, 7b, 7c, 7d, and 3
Individual grain stem raising devices 8A, 8B, 8C, and a mowing device 5
The cutting frame 11 is configured to support the gear-shaped scraping rotary members 9A, 9B, 9C, and the like, and the vertical transport device 10. The distance between the rightmost fixed weeding tool 7a and the second fixed weeding tool 7b from the right is set to be larger than the distance between the other fixed weeding tools 7a. Columns can be introduced. The vertical transport device 10
It is composed of an ear-locking and transporting mechanism 10A and a stock-holding and transporting mechanism 10B, and is configured to be swingable up and down around a left-right fulcrum X at a rear portion thereof so that the handling depth can be adjusted.

Three grain stem raising devices 8A, 8B, 8C
Are arranged side by side on the left and right, in order from the right, a first elevating device 8A and second and third elevating devices 8B, 8C in which a pair of stem and culm introduction routes Rb, Rc are arranged facing each other. Are juxtaposed. Then, the three scraping rotating bodies 9A, 9
B and 9C are disposed in a state that they are located behind the first raising device 8A, the second raising device 8B, and the third raising device 8C, respectively, and three scraping rotating bodies 9A and 9 are provided.
B, 9C, the second scraping rotary member 9 which is the central one
B has a smaller diameter than the others. FIG.
As shown in the figure, three scraping rotating bodies 9A, 9B, 9C
Are almost the same in the front-rear direction
The rotation of the small-diameter second scraping rotator 9B is performed such that
The axis of rotation is set to the diameter of the first and third scraping rotating bodies 9A and 9C.
The position is set forward of the rotation axis. These scraping rotary bodies 9A, 9B, 9C are provided with base locking transporting devices 12, 12, 12, respectively, which share the rotation axis. Then, the stock-holding / conveying mechanism 1 that shares the first shaft 13 that forms the rotation axis of the first scraping rotator 9A located at the right end
4 is provided to the left rear. The stock-holding / conveying mechanism 14 includes a chain 14A as an endless swivel belt with a protrusion capable of locking a stem and a stem at a position behind the driven sprocket 15 of the first shaft 13 and the second scraping rotator 9B. The first shaft 13 of the chain 14A is stretched over the drive sprocket 17 of the second shaft 16 provided.
A guide rod 14B is disposed so as to be opposed to the chain 14A in the stem-and-culm transport path portion from the second scraping rotary body 9B to the back of the second scraping rotator 9B, and the guide rod 14B is elastically biased toward the chain 14A. By letting the chain 1
The stem can be transported while being pinched between the 4A and the guide rod 14B. That is, the root of the stem and culm which is introduced from the stalk and culm introduction route Ra and cut and raised by the first raising device 8A is moved by the vertical clamping device
Is transported to the transport start end of the stock-holding transport mechanism 10B.

[0010] The vertical transport device 10 is pinched and transported.
The transport start end of the transport mechanism 10B is as shown in FIG.
Immediately after the second scraping rotary body 9B, the second scraping is performed.
And it is set so as to approach the rotator 9B.
The rotary shaft 19 of the sprocket 18 that is wound around a strain based on sandwiching conveyor chain conveying starting end of the strain based pinching transport mechanism 10B of the longitudinal transport device 10, the vertical conveying apparatus 1
0 at the lowest position, the rotation axis P
Is disposed at a position close to the axis Q of the second shaft 16 so as to substantially overlap with the axis Q when viewed in the axis direction. As a result, the cut stem culm scraped by the second and third scraping rotating bodies 9B and 9C and the cut stem culm transported by the stock-holding / conveying mechanism 14 have the second shaft 16 in plan view. Are collected in a space surrounded by the driving sprocket 17 and the second and third squeezing rotary members 9B and 9C, and are immediately transferred to the transfer start end of the vertical transfer device 10. The second
Power transmission to the shaft 16 is performed via a bevel gear mechanism 21 from a main transmission shaft 20 provided inside the mowing frame 11, as shown in FIG. The power is transmitted to the first scraping rotary member 9A via the driving sprocket 17, the chain 14A, the driven sprocket 15, and the first shaft 13.

In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration shown in the attached drawings.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional side view showing a combined structure of a cutting stem and a culm at a location where a first scraping rotating body is installed.

FIG. 2 is a longitudinal sectional side view showing a combined structure of a cutting stem and a culm at a location where a second scraping rotating body is installed.

FIG. 3 is a partially cutaway side view showing a combined structure of a cutting stem and culm at a location where a third scraping rotary member is installed.

FIG. 4 is a partially cutaway side view showing the structure of the confluence of the cutting stem and culm at the second axis position.

FIG. 5 is a plan view showing the structure of the confluence of the cutting stem and culm.

FIG. 6 is a side view showing the front part of the combine.

[Explanation of symbols]

 Reference Signs List 3 threshing device 8A first raising device 8B second raising device 8C third raising device 9A first scraping rotator 9B second scraping rotator 9C third scraping rotator 10 vertical transport device 13 first shaft 14A Endless rotating belt with projection 16 Second axis 19 Rotation axis Rb, Rc Stem stem introduction route

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-59-132813 (JP, A) JP-A-63-45149 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) A01D 57/00 A01D 61/00 301 A01D 61/00 302

Claims (1)

(57) [Claims] 1. A first raising device (8A) for raising one stem culm, and a pair of stem culm introduction routes (Rb) and (Rc) facing each other for raising two stem culms. The second and third elevating devices (8B) and (8C) are disposed side by side on the left and right, and the first, second, and third elevating devices (8
A), (8B), and (8C), the first, second, and third scraping rotary members (9A), (9B), and (9C) behind each of them.
And a small-diameter gear-shaped second scraping rotary member (9)
B) and a third toothed rotary body (9C) in the form of a gear having a large diameter are engaged with each other so that the tooth portions thereof move from front to rear, so that the second and third raising devices (8B) are engaged. , (8
C), the stems and stems raised in step C) are sent backward, and the first, second, and third scraping rotators (9)
A), (9B), (9C) the front end position
So that the small-diameter
(2) Rotate the rotating shaft of the swirling rotary body (9B)
3 Scraping than the rotation axis of rotating bodies (9A) and (9C)
The second scraping rotating body (9B), which is set at the front side,
Immediately after, approach the second scraping rotating body (9B)
Longitudinal transport for transporting stems to the rear threshing unit (3) in the state
A starting end of the device (10) is provided , and the vertical conveying device (10) is supported so as to be vertically oscillatingly displaceable around a horizontal axis near a rear end thereof, and the large-diameter gear-shaped first device is provided. (1) A first shaft (13) on which a squeezing rotary body (9A) is mounted and a second shaft (1) located on the rear side of the second squeezing rotary body (9B).
6), the endless rotating band (14A) with a projection that feeds the stem and stem raised by the first raising device (8A) to the start end of the vertical transport device (10) is wound, and the vertical transport is performed. Rotary shaft (19) at the transport start end of device (10)
The position of the second axis (16) and the position of the second shaft (16) are
0) The combined harvesting stem and culm structure of the combine, which is set to be substantially the same as viewed from the rotation axis center in a state where 0) is located at the lowest position.