JPS6196914A - Low crop header apparatus in combine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a row crop header device in a combine harvester.

Conventional technology A conventional full-feed type axial-flow combine harvester uses a raking reel to rake in the crop, and a cutting blade to harvest the crop.The cut crop is conveyed from the raking auger to the handling room by a chain conveyor in the feeder house, where the raking reel is used to transport the harvested crop to the handling room. The grain is threshed using

Problems to be Solved by the Invention With the above-mentioned combine harvester, the crops are raked in a disorderly manner with one raking reel, which tends to damage the crops, and also makes it impossible to reap crops in accordance with the crops.

Means for Solving the Problems Therefore, the technical problem of the present invention is to use a combine harvester that can harvest crops according to the conditions.

The technical means of the present invention to solve this technical problem is to provide a unit consisting of a pair of left and right dividers, a pair of left and right transport mechanisms arranged behind the dividers, and a drive shaft for driving the transport mechanisms. Provided on the frame for the low crop header,
These units are configured to be able to move up and down individually around the drive shaft.

Effects of the Invention According to this technical means, the pair of left and right dividers and the pair of left and right transport mechanisms placed behind the dividers can move up and down about the drive shaft for each uni-nod, making it possible to follow each strip on the ground. Therefore, crops can be harvested in a regular manner according to the conditions, and because they are not harvested at random, they can be harvested with less damage to the crops.

Embodiment First, a conventional full-feed type axial flow combine shown in FIG. 12 will be explained.

The crops are raked by the raking reel (1) and cut by the cutting blade (2), and the cut crops are transferred from the raking auger (3) to the chain conveyor (5) of the feeder house (4) to the handling room (6). ) and threshed using a complete screw handling cylinder (7).

The threshed grains fall from the receiving net (8) to the oscillating sorting board (9) and are sorted by the blower fan (10) and the oscillating sorting board (9).

During this sorting process, grains and fine straw waste leak downward from the sorting plate, and only long straw is carried toward the dust outlet (11).

Leakage including grains that have fallen from the sorting board is sorted by a winnow-like blower fan (12), and the grains are transported to the first gutter (12).
At 13), the second item falls into the second gutter (14) and falls into the first gutter (14).
The grains that have fallen into the tank 13) are carried to the paddy tank by a grain-lifting conveyor, and the second grains are returned to the handling room (6) through the thrower tube (15).

(16) is a crawler equipped with a thresher, (17)
indicates the control section.

Further, the discharge culm part of the handling chamber is composed of a discharge vane (18) at the rear end of the handling cylinder and a casing (19).

The present invention eliminates the scraping reel in the combine harvester as described above, and provides a pair of left and right conveyance mechanisms as shown in FIG.

That is, (20) shown in FIG. 1 is a pair of left and right dividers, (21) is a pair of left and right In transport mechanisms arranged behind the dividers, and (22) is a transport mechanism (21).
) is the drive shaft of the divider (20), conveyance mechanism (
21), the drive shaft (22) constitutes one unit,
This unit is attached to the row crop header frame (
23), and these units were configured to be able to move up and down individually around the drive shaft (22).

Next, each structure constituting the unit will be specifically explained as follows. .

As shown in FIG. 3, the row crop header frame (23) is an elongated frame extending from the platform frame (24), and has a scraping auger in the platform (25), as in the prior art.

The low crop header frame (23) has a guide rail (26) with a U-shaped cross section as shown in FIG.

It is suspended horizontally, and a slide frame (27) is slidably attached within this rail (26) as shown in Fig. 9.1o.

Its sliding mounting structure is like a bridge.

That is, (28) is a long hole drilled in the rail (26), into which the bolt (30) inserted through the hole (29) of the slide frame (27) is inserted, and the nut (31) is inserted at the slide adjustment position. It is set to be fixed.

Also, on the left and right sides of the slide frame (27) are bearing bodies (32) and (33) divided into upper and lower halves.
The drive shaft (22) of the transport mechanism (21) is mounted on (33).

(53) (54) in Figure 9.10 are transport cases (34) (,35), (44) (4), which will be described later.
5) from the drive shaft (22) to the bevel case (56).
), (57) is driven via the bevel gear. ・To explain the transport mechanism in detail, the transport mechanism (
21) consists of a pair of upper and lower transport cases installed on the left and right sides, and the one shown in Figure 4 has a pair of upper general transport cases (34) and (35) on the left and right sides. There is.

There are sprockets (3) inside the transport case (34) (35).
There is a chain with tines (40) stretched between 6) (, 37) (38) and (39).

Among the sprockets, (36) is a driving sprocket, (39) is a sprocket for adjusting chain tension, and (37) is a sprocket for adjusting chain tension.
) is a sprocket for changing the tine trajectory, and (A) shows the trajectory of the tine.

Here (37a) (39a) are sprockets (
37) This is the long hole for adjustment of (39).

In the figure, (41), (42), and (101) indicate the chain guide, and (43) indicates the tine guide.

The one shown in Figure 5 is the lower transport case (44) (45
) are shown with a pair on the left and right.

In the jm feed case (44) (45) there is a chain with tines (49) stretched between sprockets (46) (47) (4B), (50) and (51) are chain guides, and (52) is It is a tine guide.

Inside the sprocket (46) is the driving sprocket, (
48) (48a) is a sprocket for adjusting chain tension and its adjustment hole, which is similar to the upper transport case, but the lower transport case is shorter than the upper transport case.

Note that the chain with tines described above has tine guides (43) (5
2) protrudes, and the others retract into the case.

As shown in Figure 3.6, the 2nd class upper and lower transport cases are connected to each other by pipes (90), (91) and (92), respectively, and are integrated into the hevel case (56) or (57) by pipe (93). is connected to.

And the upper and lower drive sprockets (36
) (46) is the intermediate shaft (53) (5
As described above, the intermediate shafts (53, 54) are driven from the drive shaft (22) via the hevel gears of the hevel cases (56, 57).

The bevel cases (56) and (57) are connected to each other by a connecting pipe (58) as shown in FIG.
) (57) bearing pipe (59) (60) (6
1) Connect drive shaft (2) inside (62) and connecting pipe (58).
2) is inserted, and the drive shaft is rotatably mounted on the bearing of each bearing pipe.

The bearing pipes (59) (62) are mounted on the bearing bodies (32) (33) as shown in Fig. 9.10, and the upper half bearing holders (32a) (33a)
is suppressed. (63) in Fig. 9 is the drive shaft (22)
The input sprocket of the engine drives the chain of the feeder house via the drive system that drives the sorting section, and the chain of the feeder house is driven from the drive system of the feeder house via a continuously variable transmission.

To further explain the drive system based on Fig. 2.11, the continuously variable speed bully (96) on the shaft (76) is driven from the bully (70) in the feeder house via a belt, 69) to drive the continuously variable pulley (68) of the shaft (64).

The subroket (55) is driven from the continuously variable speed pulley (68), and the sprocket (9) is driven through the chain (65).
4) is driven, and the sprocket (63) is driven from the coaxial sprocket (66) via the chain, thereby driving the drive shaft (22) of the transport mechanism. In addition, the subroketso l-(99) of the scraping auger (3) is driven from the sprocket (77) of the shaft (76) via the chain (78), and (
79) is its tension sprocket.

Bully (96) drives Bully (72) via bell l-(71). (74) and (75) are guide rollers in the mechanism, and (73) is a tension roller. A cutting blade (2) is driven from the bully (72) via a normal cutting mechanism.

With the above structure, the reaping section can be driven using the conventional reel drive system as is, so a conventional combine harvester can be retrofitted to one with a low crop header specification without major modification of the transmission system.

Next, we will explain in detail the structure in which the transport mechanism (21) and the divider (20) in front of it are integrally attached to the low crop header frame (23).As shown in Fig. 3.7, the hevel case (56) Dividers (20) (20) are installed on the extension of the transport case frame (80) (80) which is directly connected to the transport case frame (80) (80), and the pipe (81) connecting the transport case frame (80) (80) ) is attached to the low crop header frame (23) with bolts (86).

Therefore, by removing the slider frame mounting bolts (30, 31) shown in FIG. (23).

The one shown is a pipe (81) and a transport case frame (81).
0) is fixed, so it cannot be rotated up and down using the drive shaft (22) as a rotation fulcrum, but if the bolt (86) is removed, the transport mechanism (21) and divider can be rotated using the drive shaft (22) as a rotation fulcrum. (20) can be rotated up and down as one unit.

In other words, the bevel cases (56) (57) are rotatable around the drive shaft (22) via the bearing pipes (59) (60) (61) (62), so the conveyance mechanism responds to the ground condition. and the divider (20) move up and down together.

Therefore, by removing the bolts (86) in each unit, each unit can be moved up and down, making it possible to follow the ground.

In FIG. 3, (82) is a gauge wheel, which is provided on the transport case frame as required.

In addition, in order to accommodate manufacturing errors when installing the transport case, the lower transport case (44) (
A slit hole (84) is inserted into the metal fitting (83) attached to the
) (84) and a bolt (85) attached to the metal fitting (81a) shown in Fig. 8 fixed to the pipe (81).
(85) are inserted into the slit holes (84) (84) and tightened with a NAND while adjusting up and down.

In addition, as shown in Fig. 3, a crop drop plate (102) is installed at an angle on the bottom plate of the auger, and the transport mechanism (
The crops that have been transported at step 21) are dropped into the auger (3) along this plate (102) to prevent grains from scattering.

Furthermore, a spline (2) is attached to the drive shaft (22) as shown in Fig. 9.
2a), and a coupling (87) is fitted thereto to connect the drive shafts between the units to each other.

[Brief explanation of drawings]

Fig. 1 is an overall front view of the combine harvester equipped with the device of the present invention. Fig. 2 is a plan view of the device of the present invention. Fig. 3 is a side view of the device of the present invention. Fig. 4 is a plan view of the upper transport case. Fig. 5 is the lower part. FIG. 6 is a plan view of the transport case. FIG. 6 is a side sectional view of the upper and lower transport cases. FIG. 7 is a simplified plan view of the transport mechanism. FIG. FIG. 11 is an explanatory diagram showing the drive system. FIG. 12 is a front view of the entire conventional combine harvester. (2)...Mowing blade (3)...Kraking auger (4)...Feeder house (5)...Chain conveyor (6)...Handling room (7) ... Screw set handling cylinder (20) ... Divider (21) ... Transport mechanism (22) ... Drive shaft (34) (35) - Upper transport case (44)
(45) ・Lower transport case (23) ・・・・
Frame for row crop header (80)...Transportation case frame Applicant: Yanmar Agricultural Machinery Co., Ltd.E≧,・', Agent: Tsutomu Watanabe, L' Figure 8

Claims (1)

[Claims] A unit consisting of a pair of left and right dividers, a pair of left and right conveyance mechanisms arranged behind the dividers, and a drive shaft for driving this conveyance mechanism is provided on the row crop header frame for the number of rows, and these units are connected to the drive shaft. A row crop header device for a combine harvester, characterized in that it is configured to be able to move up and down individually centering on.