JP2002101747A - Grain-unloading device of combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently unloading grains stored in the grain tank of a combine harvester on the outside of the machine without damaging the grains. SOLUTION: This combine harvester in which a reaping device 3 for reaping and backward carrying standing grain straws is disposed in the front of an undercarriage 2 having a travel device 1 and further in which a thresher 4 for threshing and separating grains carried from the reaping device 3, a grain tank 5 for temporarily storing grains threshed and separated with the thresher 4, and an operation portion 6 are disposed on the undercarriage 2, characterized by unloading the grains stored in the grain tank 5 from a grain-unloading auger 8 on the outside of the machine with an air force generated with an air carrying force-generating means 7 and disposing the air carrying force-generating means 7 between the operation portion 6 and the grain tank 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a combine grain discharging device.

[0002]

2. Description of the Related Art A conventional grain discharging device for a combine is provided with a spiral at the lower portion of a Glen tank, and discharges the grain from the grain discharging auger by rotating the spiral.

[0003]

In the above-described combine grain discharging device, the grains are damaged by friction with the spiral. In addition, since it was a configuration to provide a spiral,
The weight of the whole combine was heavy.

The present invention is intended to solve such a problem.

[0005]

SUMMARY OF THE INVENTION The present invention takes the following technical means in order to solve the above-mentioned problems. That is, in the invention according to claim 1, a cutting device 3 that cuts the planted grain culm and transports it rearward is provided in front of the chassis 2 having the traveling device 1, and the cutting device 3 is provided on the chassis 2. In a combine provided with a threshing device 4 for threshing and sorting the conveyed grain culms, a grain tank 5 for temporarily storing the grains threshed and sorted by the threshing device 4, and an operation unit 6, the grain tank 5 The grains stored in
Air is generated by the air conveying force generating means 7 and discharged from the grain discharge auger 8 to the outside of the machine, and the air conveying force generating means 7 includes the operating unit 6 and the Glen tank 5.
And a grain discharge device for combine harvesters.

In the invention according to claim 2, a detachable joint 9 is provided between the air conveying force generating means 7 and the Glen tank 5. It is a grain discharging device.

[0007]

Embodiments of the present invention will be described with reference to the drawings. FIGS. 1 to 4 show a normal combine according to this embodiment. Undercarriage 2 having traveling device 1
A mowing device 3 that cuts the planted grain culm and transports it rearward, and an elevator 3a that inherits the grain culm transported from the mowing device 3 and transports the harvested culm toward the threshing device 4 further behind. Have been.

The cutting device 3 includes a weeding device 10 for weeding the planted grain culm, a scraping reel 3c having a tine 3b for scraping the weeded grain culm, and a cutting blade 11 for cutting the scraped grain culm. ,
It is composed of an auger drum 12 and the like for feeding the cut culm to the rear elevator 3a. During the transportation of the elevator 3a, a discharge device 3d configured to discharge dust in the elevator 3a to the outside of the machine is configured.

On the chassis 7, a threshing device 4 for threshing and sorting grain culms conveyed from the elevator 3a, and a Glen tank 5 for temporarily storing the grains threshed and selected by the threshing device 4
And the operation unit 6 covered by the cabin 6a is placed. The temperature inside the cabin 6a can be adjusted, and a condenser 6c as a cooling device for the refrigerant for the temperature adjustment is provided.
Is mounted on a frame above the rear part of the chassis 2.
The engine 2a is mounted at the front of the chassis 7 and below the operation unit 6 so as to be able to transmit the rotating parts of each device.

When the operation is started by running such a combine, the planted grain culm is weeded by the weeding tool 10 and scraped by the scraping reel 3c having the tine 3b to the cutting blade 11. Is reaped. The grain stalks cut by the cutting blade 11 are collected by the auger drum 11 and
It is sent to the beginning of.

The cereal culm sent to the elevator 12 is conveyed backward, and is thrown into the threshing device 4 for threshing and sorting. The grains selected by threshing by the threshing device 4 are transported from the first elevator 35 into the Glen tank 5 and temporarily stored therein. When the grains in the Glen tank 5 are full, the grains are conveyed by the air force generated by the air conveying force generating means 7 (hereinafter, referred to as a blower) and discharged from the grain discharge auger 8 to the outside of the machine. . In the present embodiment, as described above, the ordinary type combine is shown. However, the function and effect are the same even with the self-removable type combine.

The structure of the blower 7 and the Glen tank 5 will be specifically described. The blower 7 is provided in a space between the operation unit 6 and the Glen tank 5, and has a configuration in which an air inlet 7a and an outlet 7b are provided. A grain feeding device 15 is provided below the Glen tank 5, and is configured to be rotationally driven by a motor 13 and a chain 14. The grain feeding device 15 has a plurality of blades 15a.
Is provided. And the discharge port 7b of the blower 7
The lower part of the grain feeding device 15 is connected to a pipe 16, and the other side of the lower part of the grain feeding device 15 (the lower side in the grain transport direction) is also connected to a pipe 17, so that the grain discharge is performed. One pipe 17 to the vicinity of the grain discharge port 8a of the auger 8
It consists of. Plates 5b and 5c are provided at the front and rear of the Glen tank 5, respectively. The front plate 5b is integrated with the blower 7 side, and the rear plate 5c is integrated with the Glen tank 5.

The pipe 16 connecting the outlet 7b of the blower 7 and the lower part of the grain feeding device 15 is made of a flexible material, but may be made of a steel pipe. The pipe 16 connecting the lower part of the grain feeding device 15 and the grain discharge port 8a of the grain discharge auger 8 is made flexible. The pipe 16 is configured to pass through a vertical steel pipe 19 that can be rotated left and right by a motor 18 and a horizontal steel pipe 21 that can be moved up and down by a hydraulic cylinder 20.

A gear 19a is fixed to the vertical steel pipe 19 and meshes with a pinion 18a of a motor 18 fixed to the machine body. Further, between the vertical steel pipe 19 and the horizontal steel pipe 21, a hydraulic cylinder 20 for raising and lowering the horizontal steel pipe 21 is provided. Next, referring to FIG.
Will be described.

FIG. 5 is a plan view. A pulley 2c is fixedly provided on an output shaft 2b of the engine 2a mounted below the operation unit 6. A belt 23 is wound around the pulley 2c and a fixed pulley 25 of an input shaft 24a of a rear counter case 24. A pulley 24c is integrally formed with the output shaft 24b of the counter case 24 by casting.

The rear bevel case 27 is attached to the pulley 24c.
A belt 26 is wound around the pulley 28 of the input shaft 27a, and a belt tension clutch 33 is provided on the belt 26. The belt tension clutch 33 is provided with a cable 33a, which is connected to the grain discharge lever 22 of the operation unit 6.

A bevel gear 29 is fixed to the other end of the input shaft 27a of the bevel case 27, and is engaged with a bevel gear 30 whose direction is changed by 90 °.
A shaft 31 is fixed to the bevel gear 30, and the shaft 3
Reference numeral 1 denotes a configuration extending forward, and a chassis 2
Is fixedly provided. The belt 34 wound around the pulley 32
The blower 7 is wound around a rotating shaft 7c and a fixed pulley 7d.

During the harvesting operation in the field, when the grains in the Glen tank 5 are full, the motor 18 is driven to move the grain discharging auger 8 to an arbitrary position desired by the operator (such as a truck bed or a truck bed). Swivel). Then, the hydraulic cylinder 20 provided between the vertical steel pipe 19 and the horizontal steel pipe 21 is driven to move the grain discharge port 8a to a desired position.

Next, the grain discharge lever 22 provided on the operation unit 6 is set to the on state. Then, the cable 33a is pulled and the belt tension clutch 33 tensions the belt 26, and the power from the engine 2a passes from the output shaft 2b through the counter case 24, the belt 26, the bevel case 27, and the shaft 31 to the blower 7. To the rotating shaft 7c of
The blower 7 starts rotating. After a predetermined time, the electric motor 13 is driven and the feeding device 15 is driven. This is because the electric motor 13 is driven first and the feeding device 15 is driven.
Is driven, the grains are not conveyed and are clogged below the feeding device 15.

As a result, air is sucked in from the suction port 7a of the blower 7, and is discharged from the discharge port 7b.
6 and joins the grain fed by the feeding device 15 below the feeding device 15. Then, pipe 17
And is discharged out of the machine from the grain discharge port 8a.

Thus, it is possible to prevent the grains in the Glen tank 5 from being damaged. In particular, helical discharge is effective for transporting soybeans, one of the grains that are easily damaged. In addition to soybeans, it has an effect of preventing damage in transporting grains such as rice, wheat, and buckwheat. In addition, since the conventional spiral can be eliminated, the weight can be reduced.

However, if the number of revolutions of the blower 7 is varied according to the difference in specific gravity of the grains, it is possible to further prevent the grains from being damaged. That is, the rotation speed of the blower 7 is slowed for an object with a low specific gravity (buckwheat), and the rotation speed of the blower 7 is increased for a heavy object (wheat). As a result, any kind of grain can efficiently transport and discharge the grain without being damaged.

When the angle of the horizontal steel pipe 21 is large (the position of the grain discharge port 8a is higher than the ground), it is against gravity, so that the ability to transport the grain is reduced. Therefore, the rotation speed of the blower 7 is increased as the angle of the horizontal steel pipe 21 increases. The configuration for increasing the speed may be proportional or may be increased according to a quadratic curve depending on the situation. As a result, the grains are efficiently discharged out of the machine without being damaged.

The temperature of the air discharged from the discharge port 7b of the blower 7 is higher than the temperature of the air discharged from the discharge port 7b by adiabatic compression. Therefore, the grains in the Glen tank 5 are transported by high-temperature air, so that the grains can be dried by receiving a drying action during the transport. As a result, the drying time of the dryer required in the subsequent process is shortened, so that the fuel and energy of the dryer can be saved.

As shown in FIG. 3, the position of the blower 7 is such that the blower 7 is provided between the operation unit 6 and the Glen tank 5. As a result, the distance between the discharge port 7b of the blower 7 and the feeding device 15 is reduced, so that the pressure loss can be minimized. Since it can be vigorously conveyed to the grain discharge port 8a, clogging and the like can be prevented.

As shown in FIG. 4, a joint 9 is provided between the blower 7 and the feeding device 15. As shown in FIG. 4, the Glen tank 5 is configured so as to be able to rotate sideways with the rear rotation fulcrum 5 a as an axis, so that by removing the joint 9, the Glen tank 5 can be easily moved to the side. It can be pivoted in the direction. If the joint 9 is not provided, the Glen tank 5 is configured to rotate sideways together with the blower 7.
Since the weight of the Glen tank 5 itself becomes heavy, the rotation fulcrum 5
a and the Glen tank 5 must be firmly constructed,
Further, the acting force for rotating the Glen tank 5 is also heavy, which is disadvantageous in configuration.

Next, FIGS. 6 and 7 will be described. The blower 7 is provided below the grain tank 5 and on the threshing device 4 side. Accordingly, the space existing below the Glen tank 5 can be effectively used, so that it is possible to prevent the amount of grains that can be stored in the Glen tank 5 from being affected. Further, since the blower 7 is located on the threshing device 4 side remote from the operation unit 6, the noise generated from the blower 7 serves as a sound insulating function of the Glen tank 5 body.
Noise can be reduced.

Next, FIG. 8 will be described. This configuration is
The blower 7 is provided between the operation unit 6 and the Glen tank 5, and the Glen tank 5 is extended to above the blower 7 to provide an extension 5 d. This makes it possible to increase the capacity of the Glen tank 5 irrespective of the position of the blower 7.

The above-described counter case 24 (FIG. 5)
The grains selected in the threshing device 4 are arranged in front of the first elevator 35 that feeds the grains into the Glen tank 5.
Thus, it is possible to prevent the amount of grains that can be stored in the Glen tank 5 from decreasing. If the first elevator 25 is present on the side of the counter case 24, the left end surface of the Glen tank 5 moves to the right by that much, so that the grains that can be stored in the Glen tank 5 decrease. Would.

The bevel box 27 (FIG. 5) on the way of driving the blower 7 is
3, the belt is driven only when the belt tension clutch 33 is engaged. Therefore, even if the engine 2a is running,
Since the bevel box 27 is stopped, the durability of the bevel box 27 is improved and noise is reduced. In addition, since the belt tension clutch 33 and other transmission members are, of course, disposed in the space below the Glen tank 5, this space can be effectively used, and the capacity of the Glen tank 5 can be reduced. Can be prevented.

Next, FIG. 9 will be described. FIG. 9 shows a front view of the Glen tank 5. The lateral rotation of the Glen tank 5 is configured to rotate about the rear rotation fulcrum 5a as described above, but the locking device 36 at the front thereof is used.
Will be described.

When the lever 37 is pulled clockwise, the plate 38 rotates clockwise about the rotation fulcrum 39 as an axis.
Then, the pin rod 40 moves upward, and the hole 4
5 and the plate 4 via the plate 41
2 rotates about the fulcrum 42a as an axis, so that the hook 43 at the distal end comes off the frame 44 fixed to the threshing device 4 side. In this state, when the lever 37 or the main body of the Glen tank 5 is further pulled, the Glen tank 5 rotates to the side. When the Glen tank 5 is stored, when the lever is set to the normal position and the lever 37 is released from the hand, the pin bar 40 enters the hole 45 of the chassis 2 by the pulling force of the spring 46 and the plate 42 The hook 43 is engaged with the frame 44 on the threshing apparatus side 4. This allows
The locking of the Glen tank 5 is completed.

At this time, the drive pulley 7 of the blower 7
Since a belt tension 47 is provided on the side of the Glen tank 5 between the belt 34 and the pulley 32 on the upper side, it is necessary to remove the belt tension 47. Then, the lever 48 is moved to the position of 48 'to
, The belt tension 47 moves to the position of 47 ′, so that the belt 34 is driven by the driving pulley 7 of the blower 7.
d. When the belt 34 is set on the drive pulley 7 d of the blower 7 and the lever 48 is removed from the hook 51, the pulling force of the spring 50 causes
Since the belt tension 47 is set, power can be transmitted.

Next, FIG. 10 will be described. In the relationship between the merging portion below the feeding device 15 and the transport pipe 17 on the lower side, an inclined portion 15b that becomes wider from the merging portion to the pipe 17 is provided. Thereby, the grains are carried over to the pipe 17 without being clogged.

[0035]

According to the first aspect of the present invention, the distance between the air conveying force generating means 7 and the Glen tank 5 is reduced, and the pressure loss of the air can be prevented, so that the kernels are efficiently conveyed. .

According to the second aspect of the present invention, by removing the joint 9, the Glen tank 5 can be easily turned to the side.

[Brief description of the drawings]

FIG. 1 is a left side view

FIG. 2 is a right side view

FIG. 3 is a right side view

FIG. 4 is a plan view

FIG. 5 is a plan view

FIG. 6 is a plan view

FIG. 7 is a rear view

FIG. 8 is a right side view.

FIG. 9 is a front view.

FIG. 10 is a right side view.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Traveling device, 2 ... chassis, 3 ... mowing device, 4 ... threshing device, 5 ... Glen tank, 6 ... Operating part, 7 ... Air force generating means, 8 ... Grain discharge auger, 9 ... Coupling.

Claims (2)

[Claims] 1. In front of a chassis 2 having a traveling device 1,
A harvesting device 3 is provided for cutting the planted grain culm and transporting it rearward. A threshing device 4 for threshing and sorting the culm transported from the harvesting device 3 is provided on the undercarriage 2, and threshing and sorting by the threshing device 4. In a combine provided with a Glen tank 5 for temporarily storing the crushed grains and an operation unit 6, the Glen tank 5
The grains stored in the inside are discharged from the grain discharge auger 8 to the outside of the machine by the pneumatic force generated by the air conveying force generating means 7, and the air conveying force generating means 7 A combine grain discharging device provided between the unit 6 and the Glen tank 5. 2. The combine grain discharging device according to claim 1, wherein a detachable joint 9 is provided between the air conveying force generating means 7 and the Glen tank 5.