JPS6196913A - 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 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 transported from the raking auger to the handling room by a chain conveyor in the feeder house, where it is transported to a handling chamber with a set of screws. It is designed for threshing.

Problems to be Solved by the Invention With the above-mentioned combine harvester, the crop is raked with one raking reel, so the crop is taken in constantly and cannot be harvested according to the number of rows.

Furthermore, since the crop is raked in a disorderly manner when taking in low crops, it is easy to damage the crop, and the crop cannot be properly engaged and smoothly fed toward the raking auger.

Means for Solving the Problems Therefore, the technical problem of the present invention is to develop a combine harvester that can harvest crops in accordance with the conditions of the crops.

The technical means of the present invention to solve this technical problem is to limit the required number of units 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 that drives this transport mechanism. They are detachably attached to the low crop header frame depending on the number.

Effects of the Invention According to this technical means, the required number of units 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 can be reduced to a frame for a rotary knob header. Since the unit can be detachably attached to the frame, the unit can be attached to the low crop header frame according to the conditions.

Therefore, it is possible to reap according to the number of rows, and because the pair of left and right conveyance mechanisms hold the crop while reaping, it is possible to reap low crops without damaging them, and the crop can be properly raked and directed toward the auger. It has the characteristic of being able to supply

Embodiment First, a conventional full-feed type combine harvester 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 fertilization (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 transport mechanisms arranged behind the dividers, and (22) is a transport mechanism (21).
It is the drive shaft of the second class divider (20) and the transport mechanism (21).
), the drive shafts (22) constitute 17 units, and the required number of drive shafts (22) are attached to and detached from the rudder frame (23?) according to the number of rows. The connection is made by cambling (87) as shown in FIG. 9, which will be described later.

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

The row crop header frame (23) is a frame extended from the plant home frame (24), and a scraping auger is provided in the plant home (25), as in the prior art.

In order to form the row crop header frame (23) as an extension frame of the platform frame (24), it must be installed using the standard cutting blade mounting hole, and due to manufacturing reasons, only the extension frame must be manufactured as a new frame. This makes it possible to simplify the welding jig, etc., and it is possible to finish a low-crop header using an attachment method at a low cost.

If you use the extension frame simply to adjust the position of the cutting blade, you can use it for long crawlers, show + cropping.

A guide rail (26) with a U-shaped cross section is installed horizontally on the low crop header frame (23) as shown in Figure 3, and a slide frame (27) slides inside this rail (26) as shown in Figures 9 and 10. It can be installed freely.

Its slidable mounting structure is as follows.

In other words, (28) is a long hole drilled in the rail (26), into which the pole (30) inserted into the hole (29) of the slide frame (27) is inserted, and the nut (31) is inserted at the slide adjustment position. It is now fixed in place.

Also, on the left and right sides of the slide frame (27) are bearing bodies (32) (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) (45), which will be described later.
) from the drive shaft (22) to the bevel case (56).
It is designed to be driven via a bevel gear in (57).

Therefore, to explain the conveyance mechanism in detail, the continuous conveyance mechanism (
21) consists of a pair of upper and lower transport cases installed on the left and right sides, and the one shown in Fig. 4 has a pair of upper transport cases (34) and (35) on the left and right sides. .

I (Sprocket (34) (35) inside the feeding case (35)
There is a chain with tines (40) stretched between 36), (37), (38), and (39).

Among the sprockets, (36) is a driving sprocket, (39) is a chain tension adjustment sprocket, 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.

(37a) (39a) are sprockets (37a)
) (39) is a long hole and an adjustment hole. Furthermore, in the figure (4
1) (42) (lot) is the chain guide, (
43) indicates a 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.

[Transfer 7! , (44) Inside (45) is a chain with tines (49) stretched between sprockets (46), (47), and (48), and (50) (51)
is a chain guide, and (52) is a tine guide.

Inside the sprocket (46) is the driving sprocket, (
48) (48a) is a chain tension adjustment sprocket 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, like the conventional chain, the tine chain described above has tine guides (43) (5) only on the crop transport side.
2) protrudes, and the others retract into the case. Further, (48a) is a long hole for adjusting the sprocket (48).

As shown in Figure 3.6, the second-class upper and lower transport cases are connected to each other by pipes (90), (91), and (92), respectively, and are integrated into a bevel case (56) or (57) by a 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 bevel gears of the bevel cases (56, 57).

The bevel cases (56) and (57) are connected to each other by a connecting pipe (58) as shown in FIG.
56) (57) bearing pipe (59) (60)
A drive shaft (22) is inserted through the connecting pipes (58) and (61) and (62), and the drive shaft is rotatably mounted on the bearings 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, a continuously variable pulley (96) on a shaft (76) is driven from a pulley (70) in the feeder house via a belt. (69) drives a continuously variable speed pulley (68) of the shaft (64).

The sprocket (55) is driven from the continuously variable speed pulley (68), and the sprocket (9) is driven via the chain (65).
4) is driven, and the sprocket (63) is driven from the coaxial sprocket (66) via the chain to drive the drive shaft (22) of the conveyance mechanism.

Also, from the sprocket (77) of the shaft (76) to the chain (
The sprocket (99) of the scraping auger (3)
) is driven, and (79) is its tension sprocket.

The pulley (96) is connected to the pulley via the belt (71).
(72) is driven. (74) and (75) are guide rollers in the mechanism, and C73) is a tension roller.

A cutting blade (2) is connected to the pulley (72) via a normal cutting mechanism.
) is driven.

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. Transport case frame (80) (80) directly connected to case (56) (57)
Dividers (20) (20) are attached to the extension of the transport case frame <80) (80) The pipe (81) that connects the two pieces is attached to the rotor-clock knob header frame (23) with bolt nuts (86). It is being

Therefore, by removing the bolt nuts (30) (31) for mounting the slider frame shown in FIG.
21) is integrated into the frame for the low crop header (
23). Therefore, the units can be set according to the conditions.

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

In this case, the bevel cases (56) (57) are rotatable around the drive shaft (22) via the bearing pipes (59) (60) (61) (62), so the conveyance angle can be adjusted without changing the drive system. Can be changed.

At this time, a gauge foil (82) is provided on the transport case frame (80) as shown in the imaginary line in FIG. 3, if necessary, to enable it to follow the ground.

It may also be elastically supported by other spring supports as described above.

In addition, in order to accommodate manufacturing errors when installing the transport case, the one shown in Figure 3 is the lower transport gauge (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) can be inserted into the slit holes (84) and (84) and tightened with nuts while adjusting up and down.

In addition, as shown in Fig. 3, a crop drop-in i (102) is installed at an angle on the bottom plate of the auger, and the crops that have been conveyed by the conveyance mechanism (21) are carried along this plate (102) to the auger ( 3) to prevent grains from scattering.

As described above, the divider (20), the transport mechanism (21), and the drive shaft (22) can be attached and detached as one unit to the Rokuro Sof header frame (23), but depending on the conditions, it is necessary to attach the required number of units. A spline coupling (87) is provided between each unit as shown in FIG.

That is, a spline (22a) is provided on the drive shaft (22), and a compression ring (87) is fitted onto the spline (22a) for connection. A hose band or the like is used to prevent the camp ring (87) from moving.

Since each unit can be connected as described above, the conventional reaping section has a length of 2133.6 m+s, so 3 to 4 units can be attached.

The cutting blade (2) is attached to the low crop header frame (2).
3), it is fixed in a horizontally elongated state, and its vertical movement is carried out by a hydraulic cylinder (100) shown in FIG. 1, which is the same as in the conventional combine harvester.

In any case, according to the present invention, the necessary number of units can be attached and detached according to the number of rows, and row spacing can be adjusted in a range of 60 to 75 cm depending on the crop.

4. Brief explanation of the surface Figure 1 is an overall front view of a combine harvester equipped with the device of the present invention. Figure 2 is a plan view of the device of the present invention. Figure 3 is a side view of the device of the present invention. Figure 4 is a plan view of the upper transport case. Figure 5 is a plan view of the lower transport case. Figure 6 is a side sectional view of the upper and lower transport cases. Figure 67) Simplified plan view of the ship speed mechanism Figure 8 is a sectional view taken along line B-B in Figure 7. Figure 9 is a cross-sectional view of the drive shaft part. Figure 10 is a slope view of the same as above. Figure 11 is an explanatory diagram showing the drive system FIG. 12 is an overall front view of a conventional combine.

(2)... Cutting blade (3)... Scraping auger (4)... Feeder house (5)... Chainconinobear (6)... Handling room (7) )... Screw complete handling barrel (20)... Divider (21)... 1 speed mechanism (22)... Drive shaft (34) (35) - Upper transport case (44)
(45) ・Lower transport case (23) ... Frame for low chronograph hesoda (80) ... Transport case frame Applicant: Yanmar Agricultural Machinery Co., Ltd. go-8゜1cho()

Claims (1)

[Claims] The required number of units consisting of a pair of left and right dividers, a pair of left and right conveyance mechanisms placed behind the dividers, and a drive shaft that drives this conveyance mechanism are installed in a manner that can be attached to and detached from the low crop header frame according to the number of threads. A row crop header device for a combine harvester.