JP3861445B2 - Work vehicle grain discharging device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a grain discharging device for a work vehicle that discharges the grain in a grain tank to the outside of the machine .
[0002]
[Prior art]
In a conventional grain discharging apparatus such as a work vehicle, a horizontal auger is configured from a fixed cylinder and a moving cylinder, and when the moving cylinder is contracted, the horizontal auger contracts regardless of the amount of lifting of the horizontal auger.
[0003]
[Problems to be solved by the invention]
The above-described grain discharging apparatus for work vehicles has the following drawbacks.
When shrinking, there is no problem if there is no grain in the horizontal auger, but if it shrinks with the grain remaining, there is a disadvantage that the motor is extended and retracted and the motor is damaged in the worst case. is there.
[0004]
The present invention is intended to solve such problems.
[0005]
[Means for Solving the Problems]
The grain discharging device for a working vehicle according to the present invention solves the above-described problems and has the following configuration. That is, on the chassis (2) having a traveling device (1), the vertical auger for discharging the grain tank (3) for temporarily reserving the grain, the grain that has been temporarily reserving at the grain tank (3) ( 4) and a grain discharge device for a working vehicle provided with a transverse auger (5), transverse auger (5), the length-side direction and fitted to the fixed barrel (5a) and said fixed cylinder (5a) to constitute from moving cylinder moving stretch and (5b), when contracting the movable barrel to (5b) is configured to the transverse auger (5) is raised a predetermined amount, the horizontal auger when decompressing the moving cylinder (5b) (5) is configured so as to be in a substantially horizontal state, the spiral (26) is configured in the fixed cylinder (5a), and the spiral is not provided in the movable cylinder (5b). The grain is transferred to the lower end of the helix (26) in the cylinder (5a) in the grain conveying direction. And a working vehicle grain discharge device, characterized in that a tubular outlet (5b) (33) release the blade for splashing the direction (46).
[0006]
DETAILED DESCRIPTION OF THE INVENTION
The combine which actualized embodiment of this invention is shown by FIGS. 1-3.
In front of the chassis 2 having the traveling device 1, a cutting device 6 and a supply conveyance device 7 are provided. The harvesting device 6 includes a weeding tool 8 for weeding the planted cereal, a raising case 9 that causes the planted cereal, a cutting blade 10 for harvesting the planted culm, and a mowing blade 10 for harvesting. A stock transportation device 11 is provided that sandwiches the cereal grains and transports them backward. Behind the stock transport device 11 is provided a supply transport device 7 that takes over and transports the cereals transported from the stock transport device 11.
[0007]
Since the reaping device 6 is supported by a reaping device support frame 13 that moves up and down around a fulcrum above the traveling transmission device 12, the reaping device 6 is supported by the substantially left and right intermediate portions. It is the structure which moves up and down together.
Above the chassis 2, a threshing device 15 having a feed chain 14 that takes over and transports the cereals conveyed from the supply conveying device 7, and a grain that temporarily stores the grains threshed and selected by the threshing device 15. The tank 3 and an operation unit 16 for performing various operations of the combine are placed. On the rear side of the threshing device 15, a waste chain 17 that takes over and transports the waste conveyed from the feed chain 14, and a cutter 18 that cuts the waste is provided below the waste chain 17. Further, instead of the cutter 18 of this embodiment, for example, another working machine such as a knotter for binding the waste may be mounted.
[0008]
When the grain amount in the Glen tank 3 is full, a vertical auger 4 and a horizontal auger 5 are provided to discharge the grain out of the machine. The vertical auger 4 is configured to be rotationally driven in the left-right direction by an electric motor 19. That is, the rotational force of the motor 19 is transmitted through the pinion 19a of the motor 19 and the gear 20 on the vertical auger 4 side. Further, the horizontal auger 5 is raised and lowered by the hydraulic cylinder 21. The cylinder side of the hydraulic cylinder 21 is loosely fitted to the vertical auger 4, and the piston rod 21 a side is loosely connected to the base of the fixed cylinder 5 a of the horizontal auger 5. When the hydraulic cylinder 21 is extended, the horizontal auger 5 is raised, and when it is contracted, it is lowered.
[0009]
The horizontal auger 5 includes a fixed cylinder 5a and a movable cylinder 5b. The movable cylinder 5b is fitted to the fixed cylinder 5a, and is configured to expand and contract in the longitudinal direction, that is, the upper side and the lower side in the grain conveying direction. The expansion / contraction configuration of the movable cylinder 5a will be described.
An electric motor 22 is attached to the rear of the fixed cylinder 5a via a fixed cylinder flange 23. A screw shaft 24 is attached to the output shaft of the motor 22, and a metal 25 having a female screw fitted to the screw shaft 24 is fixed to the movable cylinder 5 b.
[0010]
A spiral 26 is fixed to a shaft 27 inside the fixed cylinder 5a. A plurality of bosses 29 are fitted to the shaft 28 inside the movable cylinder 5b, and a spiral 30 is fixed to the boss 29. Further, an elastic spring conveyor 31 is provided between the bosses 29.
When the harvesting operation is performed by advancing such a combine, the cereal buds planted in the field scene are split by the weeding tool 8 and are raised and caused by the case 9 to be cut by the cutting blade 10. Harvested. Thereafter, the stock is transported by the stock transport device 11 and taken over to the supply transport device 7. The cereal grains handed over to the supply and transport device 7 are further transported backward. Then, the threshing device 15 is handed over to the feed chain 14 of the threshing device 15, and cereals are threshed and sorted by the threshing device 15 while being transported backward.
[0011]
The grains thus threshed and sorted are transported into the Glen tank 3 via the first cereal cylinder 32 and temporarily stored. When the grain amount stored in the Glen tank 3 is full, the operator is notified by the notification means of the operation unit 16. Then, the operator interrupts the cutting operation and starts the operation of discharging the grains in the glen tank 3 to the outside of the machine. The combine is moved to an arbitrary position (position near the truck), the grain outlet 33 is moved to a position such as a truck bed, etc. The kernels are discharged out of the machine.
[0012]
In order to move the grain discharge port 33 to an arbitrary position, the horizontal auger 5 housed in the auger receiver 35 is raised by the hydraulic cylinder 21. And the motor 19 is driven and the discharge port 33 of the horizontal auger 5 is moved to arbitrary positions. In order to move the discharge port 33 to an arbitrary position, the movable cylinder 5b is also extended. Usually, when the horizontal auger 5 is housed in the auger receiver 35, the movable cylinder 5b is contracted to the minimum (see FIG. 5) as shown in FIG. 6). When the movable cylinder 5b is contracted, as shown in FIG. 5, the bosses 29 are close to each other and the spring conveyor 31 is contracted.
[0013]
When the motor 22 is driven, the screw shaft 24 rotates. Since the metal 25 fixed to the movable cylinder 5b is fitted to the screw shaft 24, the metal 25 moves toward the lower side in the grain discharging direction. Therefore, the movable cylinder 5b is extended. At this time, since the interval between the bosses 29 becomes longer inside the movable cylinder 5b, the spring conveyor 31 extends.
[0014]
When the discharge port 33 comes to the position desired by the operator, the grain discharge lever 34 of the operation unit 16 is turned on to discharge the grain in the grain tank 3. When the grain discharge lever 34 is in the engaged state, the lower helix (not shown) in the glen tank 3, the helix (not shown) in the vertical auger 4, the helix 26 in the fixed cylinder 5a, and the helix in the movable cylinder 5b 30a, the spring conveyor 31 rotates. Accordingly, the grains in the Glen tank 3 are discharged from the discharge port 33 to the outside of the machine.
[0015]
In such a combine, when the movable cylinder 5b is contracted, the horizontal auger 5 is raised by a predetermined amount. This is because, when the moving cylinder 5b is contracted, if grains exist in the moving cylinder 5b, it becomes a resistance between the bosses 29 and the spring conveyor 31. As a result, a load is applied to the motor 22 and the motor 22 is damaged. It is for preventing.
Accordingly, when the movable cylinder 5b is contracted, if the horizontal auger 5 is raised by a predetermined amount, the grains fall toward the upper side in the conveying direction, so that the grains in the movable cylinder 5b are on the upper side in the conveying direction (fixed) Since it drops and moves from the cylinder 5a toward the vertical auger 4), it is possible to prevent the motor 22 from being damaged by a load. When the horizontal auger 5 is raised by a predetermined amount, it may be raised to the maximum. Moreover, the time when the movable cylinder 5b contracts includes all the movement contractions such as manual operation and automatic storage.
[0016]
When the movable cylinder 5b is extended, the horizontal auger 5 is set to a substantially horizontal state. If an attempt is made to extend while the horizontal auger 5 is lifted, a load is applied to the motor 22, so that the load can be prevented from being applied by setting the substantially horizontal state, and the extension time is also increased. If there is no obstacle, it may be lowered below the horizontal state. Thereby, since the load which acts on the motor 22 becomes small, the movable cylinder 5b can extend | expand more rapidly.
[0017]
Next, FIG. 6 will be described.
This is another embodiment of the fitting configuration of the metal 25 fixed to the moving cylinder 5 b and the screw shaft 24 rotated by the motor 22. Inside the metal 25, a hole 36 through which the screw shaft 24 can pass with a margin is opened, and a pin 37 is fixed toward the hole 36. The pin 37 is fitted with a margin within the width of the pitch P of the screw shaft 24. When the diameter of the pin 37 is d, the relationship is d <P and d−P = Q. The length of Q is set with a considerable margin. For example, it is possible to sufficiently absorb errors in manufacturing parts and errors in assembly.
[0018]
Further, the frequency of expansion and contraction of the movable cylinder 5b is often expanded and contracted while the horizontal auger 5 is raised by a predetermined amount. Accordingly, since the movable cylinder 5b is lowered downward by its own weight, the relationship between the pin 37 and the screw shaft 24 is as shown in FIG. If the moving cylinder 5b is to be extended in such a state, the driving force of the motor 22 is not transmitted to the pin 37 for the distance of Q, so the moving cylinder 5b does not move. That is, it takes a little time to move the movable cylinder 5b by a predetermined distance. On the other hand, when the moving cylinder 5b is contracted, the driving force of the motor 22 is immediately transmitted to the moving cylinder 5b via the pin 37, so that it does not take much time to move the moving cylinder 5b by a predetermined distance. Thereby, when returning the original position of the movable cylinder 5b, time can be saved and work efficiency can be improved. As described above, it is better to take some time when the movable cylinder 5b is extended. This is because when the movable cylinder 5b is extended, there is a greater danger than when the movable cylinder 5b is reduced (there is no obstacle when reducing, and there may be an obstacle when extending). This danger can be prevented.
[0019]
Next, FIGS. 7 and 8 will be described.
FIG. 7 is a side view of the horizontal auger 5, and FIG. 8 is a plan view thereof. The horizontal auger 5 is composed of a fixed cylinder 5a and a swivel cylinder 39 that is rotatable about a vertical axis 38 provided at the tip of the fixed cylinder 5a. A plate 40 is fixed to the tip of the fixed cylinder 5a, a motor 41 is attached to the plate 40, a pinion 42 is fixed to the output shaft of the motor 41, and a gear 43 fixed to the revolving cylinder 39 side. I'm engaged. The fixed cylinder 5a is composed of the spiral 26 as described above, but no spiral is composed in the swivel cylinder 39. Instead, a lower 44 is provided at the upper end of the revolving cylinder 39 in the grain conveying direction to fly the grains conveyed from the fixed cylinder 5a toward the discharge port 39a.
[0020]
When discharging the grain in the Glen tank 3, the motor 41 is driven by a turning knob (not shown) of the turning cylinder 39 provided in the operation unit 16, and the discharge port 39a of the turning cylinder 39 is arbitrarily set. Turn to the position. When the turning knob is turned to the right, the turning cylinder 39 turns to the right, and to the left, the turning barrel 39 is turned to the left. Thereby, since the turning cylinder 39 is movable within the range of the turning radius 45, the grain discharge range is widened. Further, no spiral is formed in the swivel cylinder 39, and the lower 44 is formed at the starting end thereof, so that the configuration is simplified and the weight and cost are reduced. Further, since the revolving cylinder 39 is rotated 360 ° from either the right direction or the left direction, the work efficiency is improved.
[0021]
Next, FIG. 9 will be described.
The fixed cylinder 5a is configured to move and extend the movable cylinder 5b in the longitudinal direction as described above, but the grain is directed to the lower side at the lower end of the spiral 26 in the fixed cylinder 5a in the grain discharging direction. This is different from the above-described configuration in that a discharge blade 46 to be blown away is provided and no spiral is formed in the movable cylinder 5b. Further, a flange 47 is fixed to the fixed cylinder 5 a, the motor 22 is attached to the flange 47, and the screw shaft 24 is fixed to the output shaft of the motor 22. A metal 25 is fixed to the movable cylinder 5 b, and the screw shaft 24 is fitted to a female screw that meshes with the screw shaft 24.
[0022]
The movable cylinder 5b can be expanded and contracted by driving (forward and reverse) the motor 22, and the discharge port 33 is disposed at an arbitrary position. When the grain in the Glen tank 3 starts to be discharged and reaches the lower end of the fixed cylinder 5a in the grain conveying direction, the grain is splashed in the moving cylinder 5b toward the outlet 33 by the discharge blade 46, It is discharged outside the machine.
In this way, since the moving cylinder 5b has a simplified telescopic configuration without forming a spiral, gravity is reduced and costs are reduced.
[0023]
【The invention's effect】
Since the present invention is configured as described above, if the horizontal auger 5 is raised by a predetermined amount when the movable cylinder 5b is contracted, the grains fall toward the upper side in the conveying direction, so the grains in the movable cylinder 5b Since the grains drop and move toward the upper side in the transport direction (from the fixed cylinder 5a to the vertical auger 4), it is possible to prevent the motor 22 from being damaged by a load. When the horizontal auger 5 is raised by a predetermined amount, it may be raised to the maximum. Moreover, the time when the movable cylinder 5b contracts includes all the movement contractions such as manual operation and automatic storage.
Further, since the horizontal auger 5 is configured to be in a substantially horizontal state when the movable cylinder 5b is extended, it is possible to prevent the load from acting, and the extension time is shortened. And since the load which acts on a motor becomes small, the movable cylinder 5b can extend | expand more rapidly.
In addition, the spiral 26 is formed in the fixed cylinder 5a and no spiral is provided in the movable cylinder 5b, and the grain is moved to the lower end of the spiral 26 in the fixed cylinder 5a in the grain conveying direction. Since the discharge blade 46 that jumps in the direction of the discharge port 33 of the cylinder 5b is provided, the moving cylinder 5b has a simplified expansion / contraction configuration without forming a spiral, thereby reducing gravity and reducing costs. Will come to be.
[Brief description of the drawings]
[Fig. 1] Left side view of combine [Fig. 2] Top view of combine [Fig. 3] Rear view of combine [Fig. 4] Right side view of horizontal auger [Fig. 5] Partial plan view of horizontal auger [Fig. Detailed view of telescopic mechanism [Fig. 7] Right side view of horizontal auger [Fig. 8] Plan view of horizontal auger [Fig. 9] Right side view of horizontal auger
DESCRIPTION OF SYMBOLS 1 ... Traveling apparatus, 2 ... Chassis, 3 ... Glen tank, 4 ... Vertical auger, 5 ... Horizontal auger, 5a ... Fixed cylinder, 5b ... Moving cylinder, 6 ... Lifting means , 26 ... Spiral, 33 ... Discharge port, 46 ... Discharge feather.

Claims (1)

On chassis (2) having a traveling device (1), the vertical auger for discharging the grain tank (3) for temporarily reserving the grain, the grain that has been temporarily reserving at the grain tank (3) (4) moving the horizontal auger (5) a grain discharge device for a working vehicle provided with a transverse auger (5) is fitted into the long-side direction in the fixed cylinder (5a) and said fixed cylinder (5a) The movable barrel ( 5b ) is configured to extend and contract, and when the movable barrel ( 5b ) is contracted, the horizontal auger ( 5 ) is raised by a predetermined amount , and when the movable barrel (5b) is extended, the horizontal auger (5 ) In a substantially horizontal state, a spiral (26) is formed in the fixed cylinder (5a), and no spiral is provided in the movable cylinder (5b). 5a) In the lower side end of the helix (26) in the grain conveying direction, the grain is moved to the moving cylinder (5b). Outlet (33) work vehicle grain discharge device, characterized in that a release wings (46) that splashing direction.

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