JPH10215668A - Grain tank structure for combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a grain tank structure of a combine harvester capable of improving work efficiency at the time of packing grains in the bag of a large capacity. SOLUTION: A lifting device 9 composed of a bucket conveyor for lifting and supplying the grains to a grain tank 6 is installed, a grain carrying device 8 for horizontally feeding selected grains from a threshing device 4 to the lifting device 9 is disposed and changeover to a state capable of discharging stored grains from the grain tank 6 to the grain carrying device 8 through an opening part 17 freely openably and closably provided on the lower wall 6A of the grain tank 6 and the state for stopping the discharge is freely performed. Further, in a grain supply route from the lifting device 9 to the grain tank 6, a grain ejection part 22 freely switchable to the state capable of discharging the lifted grains to the outside and the state for stopping the discharge is disposed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grain tank structure of a combine provided with a lifting device comprising a bucket conveyor for lifting and supplying grains to a grain tank.

[0002]

2. Description of the Related Art In this type of grain tank structure of a combine, in feeding grains into the grain tank, even if grains such as soybeans which are likely to be damaged if the pumping is carried out by a screw conveyor are minimized. A bucket conveyor is used to carry the cargo in a difficult condition. By the way, the grain tank is provided so as to temporarily store the selected grain after the threshing process and the sorting process on the fuselage.In the related art, the grain tank is provided as such. Also, in order to be able to pack the grains in bags, there is known one in which grains are discharged from an openable and closable discharge port provided on the side wall of the Glen tank and the bags are packed. .

[0003]

However, in the above-described conventional apparatus in which grains are discharged from outlets provided in the side wall of the Glen tank and packed in a bag, the supplied grains are guided to the outlets. To install a partition wall in the Glen tank. In addition, the above-mentioned conventional method is suitable for packing grain into relatively small-capacity bags, but bagging large-sized bags, for example, bags having a bagging capacity of about 100 kilograms. In such a case, it is difficult to pack bags by equipping them with bags on the fuselage side. However, in that case, the grain tank temporarily separated by the partition wall is limited to a small amount of grain temporarily, so the number of movements of the aircraft for bagging is increased and the work efficiency is low. There was a problem of becoming.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide a grain tank structure of a combine which can improve the work efficiency when packing grains into a large-capacity bag. I do.

[0005]

[Means for Solving the Problems]

(Structure) The grain tank structure of the combine according to claim 1 of the present invention is provided with a lifting device including a bucket conveyor that lifts and supplies grains to the Glen tank, and also supplies a grain from the threshing device to the lifting device. A state in which a grain transport device for laterally feeding the selected grains is provided, and the stored grains can be discharged from the Glen tank to the grain transport device through an opening provided in the lower wall of the Glen tank so as to be openable and closable. A state in which the discharge can be switched to a state in which the discharge is stopped, and a state in which the discharge kernels can be discharged to the outside and a state in which the discharge is stopped in the kernel supply path from the pumping device to the Glen tank. And a switchable grain discharge unit is provided.

According to the first aspect of the present invention, when collecting kernels in a large-capacity bag, the opening is opened and the kernels are discharged from the kernel discharge unit. By switching to a state where grains can be discharged into a large capacity bag,
The grains once supplied to the grain tank by the lifting device composed of the bucket conveyor discharge the grains in the grain tank to the grain transport device through the opening in the lower wall of the grain tank, and transport the grains in the grain tank. The apparatus transports the kernels to a lifting device, and discharges the kernels to the outside through a kernel discharge unit before the fed kernels are supplied to the Glen tank. When simply storing the grains in the Glen tank, the openings are closed and the state in which the discharge of the grains from the grain discharge unit is stopped is switched to the thresh-processed selected grains. Is transported to a lifting device by a grain transport device, and the grains are lifted upward while being scooped up by a bucket of the lifting device, and are supplied into the Glen tank from the top of the Glen tank.

(Effects) Therefore, according to the configuration of claim 1 of the present invention, the grain discharge provided in the grain supply path from the lifting device to the Glen tank without providing a partition in the Glen tank. It can be switched so that the grains can be discharged from the outside to the outside, and even grains that are easily damaged such as soybeans are discharged by a bucket conveyor system to discharge to the outside, so large capacity with little damage to the grains It has the advantage that it can be packed in a bag. Furthermore, since grain can be supplied to a large-capacity bag at the same time as the capacity of the Glen tank, the number of times the cutting operation is interrupted to supply grain to the bag is reduced, and work efficiency is improved. became.

(Structure) In the grain tank structure of a combine according to claim 2 of the present invention, the grain transport device for laterally feeding the selected grain is provided in a lower wall of the grain tank. On the lateral outside, the grain is configured to be fed laterally along the wall.

(Action) According to the configuration of the second aspect of the present invention, the grain transport device for feeding the selected grain laterally is provided on the outer side of the lower wall of the Glen tank along the wall along the wall. Since the grains are configured to be fed laterally, the grains can be supplied directly from the inside of the Glen tank to the grain conveying device through the opening that can be opened and closed.

(Effects) Therefore, according to the configuration of the second aspect of the present invention, the grains can be directly supplied from the Glen tank through the guide member without guiding the grains to the grain transport device. The number of parts can be reduced,
Since the grain transport device is provided close to the wall of the Glen tank, there are advantages such as a reduced width dimension in the configuration of the Glen tank and the grain transport device.

(Structure) The grain tank structure of a combine according to claim 3 of the present invention is the same as the grain tank structure according to claim 1 or 2, wherein the vertical feed screw conveyor for discharging the stored grains from the Glen tank, and the vertical feed screw conveyor. It is characterized in that a screw type unloader composed of a lateral feed screw conveyor connected to the upper end of the screw conveyor is provided.

(Operation) According to the configuration of claim 3 of the present invention, the vertical feed screw conveyor for carrying out the stored grains from the Glen tank, and the horizontal feed screw conveyor connected to the upper end of the vertical feed screw conveyor Since the screw type unloader composed of the following is provided, it is also possible to discharge the grains stored in the Glen tank by the unloader, and use the screw type unloader for soybeans that are easily damaged By discharging the grain from the grain discharge section as much as possible, the damage to the grain can be reduced as much as possible.For grains such as rice and wheat that are not easily damaged by the screw conveyor, the screw type unloader is used to remove the grain from the grain tank. Unloading kernels from

(Effects) Therefore, according to the configuration of the third aspect of the present invention, it is possible to discharge the grain from the inside of the Glen tank in a state in which the grain is not easily damaged and to increase the efficiency of the discharging operation in accordance with the easiness of the grain being damaged The versatility as a combine can be enhanced so that it can be switched to discharge and can cope with the cutting work of various grains.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 and FIG. 2 show an all-culm input type combine. This combine is composed of a body frame 2 supported by a pair of right and left crawler traveling devices 1 and 1.
And a cutting pre-processing device 3, a threshing device 4, a boarding operation unit 5, a Glen tank 6, and the like.

As shown in FIGS. 3 to 6, the selected grains after threshing by the threshing unit 4 are collected by a collection unit of the threshing unit 4 and conveyed to the Glen tank 6 side by a horizontal feed screw conveyor 7. You. The transfer end of the lateral feed screw conveyor 7 is set near the bottom 6A of the lower tapered portion of the Glen tank 6 on the inner side of the machine. The grains sent by the horizontal feed screw conveyor 7 are supplied to a grain backward feed screw conveyor 8 as a grain transport device along the longitudinal direction of the machine body. The particles are connected to a transport start end of a lifting device 9 for lifting and supplying the particles to the Glen tank 6. The hoisting device 9 connects the plurality of buckets 10 # to the chain 1
1, the picked-up kernels are discharged to the screw-type kernel supply device 12 at the upper end of the lifting device 9. The screw-type grain supply device 12 conveys the supplied grains forward in the upper part of the Glen tank 6 and drops and supplies them into the Glen tank 6 from the front end thereof.

As described above, the Glen tank 6 has left and right inclined surfaces formed so that its bottom surface 6A is tapered downward when viewed in the front-rear direction, and a bottom screw conveyor 13 extending in the front-rear direction at the bottom portion. Has been established. The bottom screw conveyor 13 is driven to rotate by power transmission from the machine body, thereby conveying the grains in the Glen tank 6 backward. Further, a vertical feed screw conveyor 14 for discharging the transported grains upward is continuously provided at a terminal end of the bottom screw conveyor 13 projecting rearward from the rear side wall of the Glen tank 6. At the upper end portion of the vertical feed screw conveyor 14, a horizontal feed screw conveyor 15 supported so as to be rotatable around a vertical axis Z and swingably up and down around a horizontal axis X is connected. Here, the vertical feed screw conveyor 14 and the horizontal feed screw conveyor 15 constitute an unloader 16 for carrying out grains from the Glen tank 6.

The grain backward feed screw conveyer 8 is installed in a state in which a cylindrical case 8A for conveying the grain is adjacent to a bottom surface 6A on the inner side of the Glen tank 6. Also, as shown in FIGS. 4 to 6, the bottom surface 6A has
An opening 17 is provided for communication between the grain backward feed screw conveyor 8 and the inside of the Glen tank 6. The bottom surface 6A constitutes a lower wall of the Glen tank 6. The opening 17 is opened and closed by a shutter 18. The opening and closing of the shutter 18 is linked to the rotation of the output shaft of the electric motor M driven forward and reverse by a manual operation command. This is performed by being displaced by the screw shaft 30. Further, as shown in FIGS. 3, 5, and 7, the bucket 10 of the screwing device 9 discharges the kernels. A second opening 20 is provided which can be opened and closed by a manually operated second shutter 19. In the state of being continuously connected to the second opening 20, a grain guide cylinder 21 whose tip extends downward and laterally outward on the rear side of the fuselage is continuously provided, and the kernel is connected to the grain guide cylinder 21. Ready for grain supply,
Switching can be performed by opening and closing the second shutter 19 in a state where the grain cannot be supplied. Here, the second opening 20, the second shutter 19, and the grain guide cylinder 21 constitute a grain discharge unit 22. The grain guide cylinder 21 is configured to be rotatable around a vertical axis so that the grain discharge position can be changed. Further, the grain guide cylinder 21 is configured to be detachable from the lifting device 9.

In the above configuration, as shown in FIG. 3, when the grains are collected in the large-capacity bag B, the shutter 18 in the opening 17 is switched to be opened and the second shutter 19 is opened. Is switched to the open channel and the grain discharging section 22
By switching the grains from the discharge port 23 at the tip of the grain guide cylinder 21 to a state where the grains can be discharged into the bag B, the grains once supplied into the Glen tank 6 by the lifting device 9 including a bucket conveyor Is discharged to the grain backward feed screw conveyor 8 through the opening 17 in the lower wall 6 </ b> A of the Glen tank 6. Then, the grain backward feed screw conveyor 8 conveys the grain to the conveying start end of the hoisting device 9, and the fed grain is not supplied into the Glen tank 6, that is, a screw type grain feeding device Rather than supplying the grains into the Glen tank 6 through 12, the grains are discharged to the outside through the grain discharge unit 22 and bagged. on the other hand,
When the grains are simply stored in the Glen tank 6, the shutter 18 of the opening 17 is operated to be in the closed state, and the state in which the grain discharge from the grain discharge unit 22 is stopped is set.
That is, the second shutter 1 is brought into a state in which the second opening 20 is closed.
By switching 9, the selected grains subjected to threshing are sent to the lifting device 9 by the grain backward feed screw conveyor 8,
The grains are lifted upward while being picked up by the bucket 10 of the lifting device 9 and supplied to the Glen tank 6 from the top of the Glen tank 6, and the grains in the Glen tank 6 are grained from the opening 17. It is stored without being discharged to the backward feed screw conveyor 8. When the rice and wheat are stored in the Glen tank 6, the unloader 16 discharges the grain to the outside.

Next, the unloader 16 will be briefly described. As shown in FIG. 7, the grain discharge port cylinder 24 provided on the tip side of the horizontal feed screw conveyor 15 of the unloader 16 is a cylindrical case 15 of the horizontal feed screw conveyor 15.
A is provided on a long plate member 15B which is guided and supported so as to be able to move back and forth along the screw axis direction with respect to the bottom of the tip end of A, and the long plate member 15B is manually moved into and out of the cylindrical case 15A. A handle 25 is provided for operation. Further, two openings 27 and 28 capable of discharging the conveyed grains downward are formed at predetermined intervals in the screw axis direction at the bottom of the distal end portion of the cylindrical case 15A. Each of the openings 27 and 28 is set to be smaller than the cross-sectional area of the grain discharge port cylinder 24. With this configuration, rice and wheat are stored in the Glen Tank 6
As shown in FIG. 7, even when the bags B are placed side by side on the carrier of the carrier 26 as shown in FIG. By moving the long plate member 15B by manual operation with the 15 facing, the grain discharge position can be changed between a state facing the opening 27 and a state facing the opening 28. There is an advantage that it is not necessary to perform a troublesome operation such as moving the cart or the bag B.

[Brief description of the drawings]

FIG. 1 is an overall side view showing a combine.

FIG. 2 is an overall plan view showing a combine;

FIG. 3 is a rear view showing a combine supplying grains to a large bag;

FIG. 4 is a longitudinal rear view showing a lower portion of the Glen tank.

5 is a longitudinal sectional side view showing a Glen tank, a lifting device, and the like (a sectional view taken along line VV in FIG. 6).

FIG. 6 is a cross-sectional plan view showing a Glen tank, a lifting device, and the like.

FIG. 7 is a partially cutaway rear view showing a state where grains are discharged by an unloader.

[Explanation of symbols]

 Reference Signs List 4 Threshing device 6 Glen tank 6A Wall 8 Grain conveying device 9 Lifting device 14 Vertical feed screw conveyor 16 Unloader 17 Opening 22 Grain discharging section

Claims (3)

[Claims] 1. A lifting device comprising a bucket conveyor for feeding and supplying grains to a Glen tank,
Providing a grain transport device for laterally feeding the selected grains from the threshing device to the lifting device, and storing the stored grains from the Glen tank through an opening provided in the lower wall of the Glen tank so as to be openable and closable. It is configured to be switchable between a state in which the grain can be discharged to the grain transport device and a state in which the discharge is stopped, and discharges the discharged grain to the outside during a grain supply path from the lifting device to the Glen tank. A combined grain tank structure with a grain discharge unit that can be switched between a state in which it can be discharged and a state in which discharge is stopped. 2. A grain conveying device for horizontally feeding selected grains,
The grain tank structure of a combine according to claim 1, wherein a grain is fed laterally outside a lower wall of the Glen tank along the wall. 3. A screw type unloader comprising a vertical feed screw conveyor for carrying out stored grains from the Glen tank, and a horizontal feed screw conveyor connected to an upper end of the vertical feed screw conveyor. The grain tank structure of a combine according to claim 1 or 2.