JPH0928173A - Combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve selection performance by making a lower part of a second selecting fan an open space absent of a chassis frame and making introduction of air excellent. SOLUTION: In the combine harvester arranged with a first selecting fan 20, first receiving trough 24, second selecting fan 21 and second receiving trough 26 from the front side in this order at a lower part of a selection chamber of a thresher loaded on a chassis, the lower part of the second selecting fan 21 is constructed in an open space 28 passing downward absent of the chassis frame.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine, and more particularly to a structure for mounting a thresher on a vehicle body.

[0002]

2. Description of the Related Art Conventionally, a vehicle body frame has been installed horizontally below a second selection fan arranged between the first and second gutters.

[0003]

Since the second selection fan introduces air from below, the body frame lying therebelow is an obstacle, and mud or the like from the crawler is introduced into the frame. It adhered and blocked the air inlet, resulting in deterioration of the sorting performance. An object of the present invention is to solve the problems of the prior art and improve the sorting performance. In order to achieve this object, the present invention has taken the following technical measures.

[0004]

[Means for Solving the Problems] That is, the technical means according to the present invention comprises a first sorting fan 20, a first trough 24, and a second sorting in a lower portion of a sorting chamber of a threshing machine 4 mounted on a vehicle body 1. In the combine in which the fan 21 and the second gutter 26 are arranged in that order from the front, the second selection fan 21
The lower part of the vehicle is formed into an open space 28 which does not have a vehicle body frame and which exits downward.

[0005]

Therefore, according to the present invention, since the vehicle body frame does not exist in the lower portion of the second selection fan, the air introduction port is closed by the mud attached to the frame as in the conventional case. It is possible to improve the intake efficiency and the sorting performance.

[0006]

Embodiments of the present invention will be described below. The combine travels in the farmland by the rotation of a traveling crawler 2 installed under the vehicle body 1. The combi car body 1 is provided with a mowing unit 3 at the front, conveys and supplies the cut grain culm to a thresher 4 mounted on the rear side, and the grain threshing machine 4 transfers and feeds the grain culm by the feed chain 5 for threshing. . The grains after the threshing selection are stored in the grain tank 7 arranged on the lateral side of the threshing machine 4 via the fried conveyor in the first fried cylinder 6.

Reference numeral 8 indicates a driver's seat, and 9 indicates an operation box. Next, the threshing machine 4 shown in FIG. 2 will be described. 10 is a handling room,
Reference numeral 11 indicates a handling cylinder, 12 a net, and 13 a dust outlet. Handling room 10
The lower sorting chamber 14 receives the threshing-treated products leaked from the receiving net 12 and the dust-treated products from the dust outlet 13 and swings and transfers them rearward in the axial direction of the handling cylinder. A sorting device 15 is provided.

The rocking / sorting device 15 has a Glen pan 16 (a stepwise transfer rack), a chaff sheave 17 and a straw rack 18 which are continuous to the rear of the Glen pan 16 and are arranged at the front and rear, and the chaff sheave. A Glensive 19 is provided below 17. Then, the processed material that has leaked from the receiving net 12, is sent to the rear by the Glen pan 16, and has passed the front side of the chaff sieve 17 is the Glen sieve 19.
After being received, the Glensieve 19 swings and transfers rearward while performing wind-selection by the selection wind from the first selection fan 20 while performing leak-down selection, and drops and discharges from the rear end.

On the other hand, the treated dust discharged from the dust outlet of the handling chamber 1 is directly received at the rear side of the chaff sheave 17, and is shaken and transferred to the rear while sifting and sorting, and only the straw waste to be discharged is strobed. -From the end of the rack 18 to the second selection fan 21
The dust is discharged to the outside of the machine together with the sorting wind from the machine, and the suspended dust is sucked and discharged by the suction dust discharge device 23. At the bottom of the sorting chamber, a No. 1 screw conveyor 25 installed inside the No. 1 gutter 24 and an No. 2 screw installed at the No. 2 gutter 26
A number screw conveyor 27 is provided.

The second selection fan 21 constitutes a cross flow fan, and has an air introduction port 22 opening downward.
It is configured to inhale air from. The vehicle body frames 1A and 1B of the vehicle body 1 are mainly longitudinal frames A1 and A in the front-rear direction.
2, A3, A4 and horizontal frames B1, B2 in the lateral direction
It is composed of B3, B4, B5, etc., and is configured to be integrally connected and held to each other. The horizontal frame B4 is connected only over the vertical frames A2, A3, A4, and is not connected within the space between the vertical frames A1 and A2, and the lower side of the second selection fan 21 is opened. Open space 28
Is provided.

A rear frame 29 formed in a substantially U shape in a plan view is detachably connected to a subframe A5 protruding rearward from a vertical frame A1 and a horizontal frame B5 via bolts 30. At the same time, a fuel tank 31 is attached to the rear frame 29. With this configuration, the fuel tank can be replaced by simply removing the rear frame 29 without lowering the thresher. Since the left and right side portions and the rear portion of the fuel tank are surrounded by the rear frame, the rear frame itself serves as a guard of the fuel tank.

The main fuel tank 31 is arranged on the rear side of the thresher 4, while the fuel sub-tank 32 is arranged on the side of the grain tank 7. In other words, the structure is arranged on the left and right with respect to the lateral center of the machine body to maintain the balance so that the weight is not biased toward the thresher side. Further, the sub tank 32 is installed so that its lower surface is higher than the lower surface of the main tank 31, and both tanks are connected by a hose 33. Therefore, even if the body tilts during the work, the fuel always flows from the sub-tank to the main tank side, so that a device such as a check valve is not required.

An HST oil tank 34 is arranged in the space between the grain tank 7 and the thresher 4, and the HST pump 3 is located in front of the side surface of the vertical frame A2 across the lower side of the thresher.
Up to 5, the oil pipe 36 is arranged so as to pass through the space between the lower side of the vertical frame A2 and the lower crawler 2. The HST pump 35 is in communication with a hydraulic continuously variable transmission (HST) 38 arranged on the input side of the traveling mission case 39 via a hydraulic hose 37. Since piping is performed using the upper and lower surfaces of the vehicle body vertical frames A3, A2, the pipe piping can be fixed securely.
The HST has a good oil suction property, and the oil tank 34 can be arranged at a low position on the upper surface of the vehicle body frame.

If the oil tank position is lower than HST,
During the initial oil supply, the oil does not reach the inlet of the HST charge pump. If driven in that state, the HST will rotate without oil, causing damage to the HST and deterioration of durability. However, if the upper and lower surfaces of the vehicle body frame are used, it is possible to ensure that the piping is below the oil tank. Because of
The oil is reliably supplied up to the HST when the oil is supplied, and the HST performance is stable because the oil flow is smooth even during normal operation.

The break metal parts 40L and 40R of the mission case 39 are driven by the traveling crawler 2 and the vehicle body frame 1A.
It is provided at a position higher than (1B), and by opening the lid 41, the internal brakes can be easily maintained. Next, the configuration of the vehicle body horizontal control device will be described. A support shaft 42 is provided near the rear side of the vehicle body frame 1A,
A left and right pitching arm 43 is integrally rotatably provided on the support shaft 42, and a pitching cylinder 45 is provided so as to be supported by a support station 44 on the vehicle body frame 1A side.
It is interlocking to swing by. The tip of the pitching arm 43 is connected to a rolling support shaft 48 of a rolling operation arm 47 via a swinging arm 46.
The left and right pitching frames 49 are vertically movable around the pitching fulcrum shaft 50 on the front end side, and the rear ends thereof are connected to the pitching arm 43 and the swing arm 46.
The traveling frame 5 is located below the lateral side of the pitching frame 49.
1 is provided in the front-back direction. A plurality of rolling wheels 52 are rotatably supported on the traveling frame 51, and a tension wheel body (not shown) is attached to the rear end of the traveling frame 51 so as to be attached to and removed from the traveling frame. . The wheel 5
2. The cro-label 2a is wound between the tension wheel body and the drive sprocket 53.

The front and rear rolling support shafts 48, 48 are provided with rolling members.
Ring arms 54, 54 are provided respectively. These ro
One end of the ring arm 54 has a pin 55 of the traveling frame 51.
To the other end, front and rear rolling operation arms 47, 47 are connected by a connecting rod 56, and
A rolling cylinder 57 is connected to the other end of the rear side rolling operation arm 47. The expansion and contraction of the rolling cylinder 57 causes the front and rear rolling arms 54, 54.
Is pivoted about the front and rear support shafts 48, and the traveling frame 51 moves up and down with respect to the vehicle body frame.

When the pitching arm 43 is rotated around the support shaft 42 by the extension of the pitching cylinder 45, the pitching frame 49 and the left and right traveling frames 51 are integrally formed via the swinging arm 46. Front pitching fulcrum shaft 5
It is interlocked so as to be rotated downward with 0 as the center of rotation. When the rolling cylinder 57 is extended, the front and rear rolling arms 54, 54 are integrally swung about the front and rear support shafts 48, and the traveling frame 51 is moved with respect to the vehicle body frame. It is configured to move downward while maintaining the parallel state.

The horizontal frame B3 passing right and left is provided in front of the No. 1 screw conveyor 25 and behind the position of the rolling operation arm 47 at the rear. According to this structure, cleaning can be easily performed by opening and closing the bottom of the No. 1 gutter 24, and the rolling operation arm 47 can be used.
It will not interfere with. The support shaft 42 of the pitching arm 43 is located behind the rolling operation arm 47, and the horizontal frame B3 and the first screw conveyor 25 are provided.
And is provided between them.

The horizontal frames B2, B3 connecting the front and rear of the rolling actuating arm 47 have a wide space, and it is preferable to dispose them immediately after the rolling actuating arm because of the frame strength. Therefore, the support shaft 42 of the pitching arm 43 is laterally framed.
If it comes in front of the frame B3, it will be inside the rolling operation arm, and the space between the left and right pitching arms will become narrow, and the upper side of the machine will become unstable. Further, if it comes after the No. 1 screw conveyor 25, there is a cleaning port or the like, and dust and the like are likely to be accumulated, which deteriorates the maintainability. These drawbacks can be eliminated by setting the disposition position of the support shaft 42.

The pitching cylinder 45 is the first frying cylinder 6
It is arranged on the front side of the rear of the rolling operation arm 47. Conventionally, since the pitching cylinder was provided to avoid the first deep-fried grain cylinder, the arm shape was complicated, but this can be solved. If the pitching cylinder is placed in front of the rolling operation arm, it will roll.
Since it is arranged on the lateral side of the ring cylinder, the maintenance of the rolling cylinder deteriorates, but this can also be eliminated. Pitching cylinder support stage 44
If the supporting frame is fixedly supported on the lateral frame B3, not only the structure of the supporting station itself becomes simple, but also it can be more firmly held in terms of strength.

[Brief description of drawings]

FIG. 1 is a plan view of a combine harvester.

[Fig. 2] Side view of the threshing machine

FIG. 3 is a front view of the main part of the combine.

FIG. 4 is a side view of the same as above.

FIG. 5 is a plan view of the main part of the combine.

FIG. 6 is a side view of the main part of the same as above.

FIG. 7 is a rear view of a main part.

FIG. 8 is a perspective view of a main part.

FIG. 9 is a plan view of the main part of the combine.

FIG. 10 is a side view of the main part of the same as above.

[Explanation of symbols]

1 Car Body 2 Traveling Crawler 3 Mowing Section 4 Threshing Machine 5 Hui Do Chien 6 No. 1 Grain Lifter 7 Glen Tank 8 Driver's Seat 9 Driver's Seat 10 Handling Room 11 Handling Cylinder 12 Receiving Net 13 Dust Exit 14 Sorting Room 15 Shaking Dynamic sorting device 16 Glenpan 17 Chaff sieve 18 Straw rack 19 Glensieve 20 1st sorting fan 21 2nd sorting fan 22 Air inlet 23 Suction and dust removal device 24 No. 1 gutter 25 No. 1 screw conveyor 26 No. 2 Gutter 27 No. 2 screw conveyor 28 Open space 29 Rear frame 30 Bolts 31 Fuel tank 32 Fuel sub-tank 33 Hoses 34 HST
Oil tank 35 HST pump 36 Pipe 37 Hydraulic hose 38 HST 39 Running mission case 40 Bra
Kimetal part 41 Lid 42 Support shaft 43 Pitching arm 44 Supporting stem 45 Pitching cylinder 46 Swing arm 47 Rolling actuating arm 48 Rolling spindle 49 Pitching frame 50 Pitching fulcrum shaft 51 Traveling Frame 52 Roller wheel 53 Drive sprocket 54 Rolling arm 55 Pin 56 Connecting rod 57 Rolling cylinder

Claims (1)

[Claims] 1. A first selection fan 20, a first selection gutter 24, a second selection fan 21 and a second selection gutter 26 are arranged in that order from the front in a lower part of a selection chamber of a threshing machine 4 mounted on a vehicle body 1. In the combine combine provided, the lower part of the second selection fan 21 is formed into an open space 28 which does not have a vehicle body frame and is pulled out downward.