JP2003061449A - Apparatus for storing grain of working car - Google Patents

Abstract

PROBLEM TO BE SOLVED: To ensure safety while simplifying the discharge of grains in a field and reducing the cost in a working car such as a combine harvester loaded with a grain storage tank on the mobile car body. SOLUTION: This apparatus for storing the grains is equipped with the grain storage tank 8 for storing the successively fed grains on the mobile car body 5 so as to be freely vertically liftable and lowerable along supports 10 so that the grains can suitably be discharged from a discharge port part in a lifted position of the tank 8 to the outside of the machine. The apparatus is further provided with a lifting regulating means for regulating the lifting of the grain storage tank 8 with a lifting means for performing operation to lift and lower the grain storage tank 8. For example, a detecting means 29 for detecting whether or not a running speed change device of the working car is located in the neutral position is installed and the lifting of the grain storage tank 8 is regulated with the lifting regulating means when the running speed change device is located in a position other than the neutral position. A means for detecting whether or not an implement freely liftably and lowerably connected to the working car is in an operating state is arranged. The lifting of the grain storage tank 8 is regulated, etc., with the lifting regulating means when the implement is in the operating state.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grain storage device for temporarily storing grains of soybeans, adzuki beans, rice, wheat, buckwheat, etc. in work vehicles such as combine harvesters.

[0002]

2. Description of the Related Art Conventionally, for example, a combine is equipped with a grain storage tank for temporarily storing a predetermined amount of grain, and a transport vehicle waiting on the ridge is equipped with a discharge tube equipped with a screw spiral. Although it is configured to discharge the grains, the grains are discharged through a long discharge cylinder, so that the discharge time becomes long.

Therefore, as disclosed in Japanese Unexamined Patent Publication No. 7-203757, there is a configuration in which the grain storage tank is lifted above the traveling machine body and the stored grain is taken out naturally from the grain discharge port. .

[0004]

However, in the structure in which the above grain storage tank is lifted to the upper outside of the machine body, the tank needs to be raised and rotated so as to be discharged to the waiting vehicle. Requires considerable strength and has limited grain storage tank capacity. In addition, there is a drawback that the structure of the elevator link is complicated.

The present invention aims to reduce the cost while reducing the cost by simplifying the grain discharge in the field while ensuring the capacity of the grain storage tank itself, and at the same time, ensuring the safety of the grain discharge. Is intended.

[0006]

In view of the above problems, the present invention has the following configuration. That is, according to the first aspect of the invention, a grain storage tank for storing the grains that are sequentially supplied on the moving vehicle body is provided so as to be able to move up and down along the column, and at the tank rising position, from the discharge port portion. In a grain storage device that is capable of appropriately discharging grains from the machine, grain storage of a work vehicle, characterized in that rise control means is provided to regulate the rise by the raising and lowering means for raising and lowering the grain storage tank. The device configuration.

As a result, the grain storage tank is raised by the raising means and the grains are discharged to the outside of the machine by the flow-down action. However, the raising means receives an arbitrary raising instruction, but regulates this raising. If the predetermined condition is not satisfied by receiving the restriction signal from the rising restriction means, the rising cannot be performed.

According to a second aspect of the present invention, there is provided detection means for detecting whether or not the traveling speed change device of the work vehicle is at the neutral position, and when it is not at the neutral position, the ascending regulation means regulates the elevation of the grain storage tank. The grain storage device for a work vehicle according to claim 1 is configured as described above.

As a result, when the traveling speed change device is in a position other than the neutral position, the ascending restriction means operates, and the ascending position can be ascended at the neutral position. According to the third aspect of the present invention, means for detecting whether or not the working device that is vertically movable to the work vehicle is in the working state is provided, and when the working device is in the working state, the rising regulating means is used to raise the grain storage tank. A grain storage device for a work vehicle according to claim 1, wherein the grain storage device is configured to be regulated.

Therefore, when the working device is in the working state, the lifting control means is activated, and when the working device is in the non-working state, it is possible to lift the working device. For example, when the reaper of the combine is grounded and in the working posture, When the partial transmission clutch is in the on state, the lift is restricted.

According to a fourth aspect of the present invention, means for detecting the inclination of the body of the work vehicle is provided, and when the inclination is equal to or higher than the predetermined inclination, the ascending restriction means restricts the elevation of the grain storage tank. The grain storage device for a work vehicle according to claim 1 is configured.

Therefore, when the work vehicle is tilted more than a predetermined angle, it is restricted from rising. The invention according to claim 5 is
A grain storage tank that stores grains that are sequentially supplied on the moving vehicle body is provided so as to be able to move up and down, and at the elevated position of the tank, grains can be appropriately discharged from the machine through the discharge port. In the device, an elevating means for raising and lowering the grain storage tank is configured, and the vehicle body is configured to be adjustable in inclination with respect to a traveling frame of a work vehicle. A grain storage device of a working vehicle configured to regulate the interlocking and adjust the vehicle body to a predetermined tilt range to allow the ascending interlocking.

According to this, when the inclination of the vehicle body becomes a predetermined value or more, the ascending / descending movement by the elevating means is restricted, while the inclination is adjusted so that the inclination angle is within the predetermined inclination range, and the ascending restriction state can be released. .

[0014]

According to the invention described in claim 1, the grain storage tank is raised by the raising means and the grains are discharged to the outside of the machine by the flow-down action. On the other hand, when the vehicle receives a command, the vehicle cannot be lifted unless a predetermined condition is met by receiving a control signal from a vehicle rising control means that controls this rising. It is safe to regulate the rise of grain storage tanks in Japan.

According to the second aspect of the present invention, the traveling speed change device operates when the traveling transmission is in a position other than the neutral position so that the traveling transmission device can ascend in the neutral position. It is safe because it can prevent the tank from rising.
According to the third aspect of the present invention, for example, when the harvesting portion of the combine is grounded and in the working posture, or when the working portion transmission clutch is in the working state, the rise is restricted, so that it is not possible to unexpectedly work. Not only prevents the grain storage tank from rising and is safe, but also prevents the vehicle body from swinging accidentally, and does not impair workability and work accuracy.

According to the invention as set forth in claim 4, when the work vehicle is tilted at a predetermined angle or more, the lifting is restricted. Therefore, the load deviation of the work vehicle is caused by the lifting restriction of the grain storage tank at a predetermined tilt or more. It is possible to prevent falls due to. Claim 5
According to the invention described in (1), when the inclination of the vehicle body becomes a predetermined value or more, the ascending / descending movement by the elevating means is restricted, while the inclination is adjusted so that the inclination angle is within a predetermined inclination range, and the ascending restriction state can be released. Therefore, the grain storage tank does not rise unexpectedly. In addition, since the tilted state is automatically adjusted and returned to the proper range and raised, the work of checking the tilted state can be omitted, which is even safer.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a side view of the combine 1. A moving vehicle body 5 is provided on traveling frames 3L, 3R having left and right traveling crawlers 2L, 2R via left and right rolling cylinders 4L, 4R.
The threshing unit 6 is mounted on one side (left side of the machine body) above, and the control unit 7 and the grain storage tank 8 are provided on the front and rear sides on the other side.

A reaper 9 is movably connected to the front part of the moving vehicle body 5 so as to be vertically movable up and down. Grains such as soybeans, red beans, buckwheat, wheat, and rice reaped by the reaper 9 are not shown in the drawing. It is configured to be guided to the threshing section 6 by a device, threshed there, and then collected in the grain storage tank 8.

The grain storage tank 8 comprises an upper storage section 8a having a rectangular cross section and a gutter-shaped discharge section 8b which is connected to the storage section 8a and has a discharge tube 8c. Cylindrical bodies 11, 11 slidably fitted to the columns 10, 10.
... is connected by means such as welding, so that the grain storage tank 8 itself slides up and down along the columns 10, 10 ...

A pair of front and rear sides of the cylinders 11, 11, ... Are connected by inverted V frames 12, 12, and a tank cylinder mechanism 13, which is hydraulically operated, is provided between the tops of the frames 12, 12 and the moving vehicle body 5. 13 is provided so that it can be expanded / contracted in a substantially vertical state in accordance with the supply / discharge control of the hydraulic oil, and the grain storage tank 8 is configured to be vertically moved up and down.

At the lowered position of the grain storage tank 8, the upper discharge gutter end of the first deep-fried grain cylinder 14 in the threshing section 6 and the introduction hole (not shown) formed in the grain storage tank 8 coincide with each other. It is provided so that grain can be supplied. At the elevated position of the grain storage tank 8, an overflow prevention plate (not shown) that closes the introduction hole is forcibly operated by a biasing means such as a spring to move from the non-acting position to the overflow preventing action position. There is. On the other hand, an overflow prevention valve (not shown) that can close the discharge gutter end is provided at the upper discharge gutter end of the first deep-fried food cylinder 14 and can be opened and closed by an electric motor (not shown).

Further, the grain storage tank 8 facing the side of the machine body
A discharge shutter 15 is provided at the tip of the discharge cylinder 8c, and is opened and closed in conjunction with the forward and reverse rotation of the electric motor 16. 1
Reference numeral 7 is a control unit that controls up and down of the grain storage tank 8 and left and right tilt control of the moving vehicle body, and is a solenoid 1 for raising a control valve 18 that controls the supply and discharge of hydraulic oil to and from the tank cylinder mechanism 13.
9. In addition to appropriately outputting signals to the lowering solenoid 20, the left and right rolling cylinders 4L and 4R extending solenoids 21L and 21R, the cylinder shortening solenoid 22L,
22R operation output, alarm buzzer 23 output, output of the open / close switch 24 that controls forward / reverse rotation to the electric motor 16, and the like. The input signals include a lift switch 25 signal, each detection signal of the grain storage sensor 8 in the grain storage tank 8, a vehicle body inclination detection sensor 27, and a neutral position of a gear shift operation lever 28 (HST lever) that controls the traveling of the machine. Position detection sensor 2
9 and the height detection signal of the ultrasonic type height detection sensor 30 which detects the elevation position of the reaper 9.

Even if the tank raising command signal is output by operating the elevating switch 25, the control section 15 regulates the energization of the raising solenoid 17 and regulates the supply of hydraulic oil to the tank cylinder 12 under certain conditions. It constitutes a rising regulation means to ensure safety. That is, when the shift operating lever 28 is operated other than neutral and the combine vehicle body is in the movable state or the movable state, the control unit 15 does not energize the raising solenoid 17. When the shift operation lever 28 returns to the neutral position, this is detected by the neutral position detection sensor 30, the lifting restriction is released, and the lifting solenoid 17 is energized as the lifting switch 25 is operated.

Further, the construction is such that the tilting state of the moving vehicle body 5 is detected to actuate the ascent control means, one example of which is shown in FIG.
Is shown in. When the up / down switch 25 is operated on the ascending side, the vehicle body inclination detection sensor 27 detects a left / right inclination state, and when the inclination in either the left or right direction is equal to or greater than the angle α, the ascent restriction means is activated. And outputs an alarm to the alarm buzzer 23 and analyzes the detection signal of the vehicle body inclination detection sensor 27 to determine the left and right inclination directions, and then extends and contracts the left and right rolling cylinders 4L and 4R to bring the vehicle body into a substantially horizontal state. Then, when the angle α range is reached, the output of the rising restricting means is released and the tank cylinder mechanism 13 is extended. When the grain storage tank 8 reaches the highest position, the operation of the tank cylinder mechanism 13 is stopped and the opening / closing switch 24 is operated to discharge the discharge shutter 15.
Open output. As described above, when the left-right inclination angle is equal to or larger than the predetermined range, the tank cylinder mechanism 1 is operated by the rising restricting means.
The extension output of No. 3 is regulated.

Further, the control unit 17 executes the control shown in the flowchart of FIG. That is, the left / right tilt control is executed in order to realize a state in which the discharge time of the grains in the tank is shortened or there is no remaining grain while securing safety by the left / right inclination angle of the vehicle body 5 and the storage amount in the storage tank 8. Is. When the elevating switch 25 is turned on and the ascending side command signal is input, the vehicle body inclination detection sensor 27 and the grain amount detection sensor 26 are read. First, it is determined whether or not the vehicle body inclination angle is within a preset α, and if it is within this predetermined range and the grain amount is full, the tank cylinder mechanism 13 is extended and output. Left rolling cylinder 4 at the same time
The right rolling cylinder 4R is shortened while L is extended and output, and the vehicle body 5 is inclined so that the left side is slightly downward (vehicle body inclination angle = -β, α> β). Therefore, when the tank is lifted when the grain amount is full (Wmax), the load from the grain storage tank 8 on the right side of the vehicle body acts on the vehicle body that is inclined to the left, and thus it is difficult to fall and is safe. When the grain discharge is started and becomes equal to or less than a predetermined amount (<W1), hydraulic oil is supplied to and discharged from the left and right rolling cylinders to return the vehicle body to the horizontal posture (tilt angle = 0), and the grain discharge is continued. When grain discharge further progresses and the amount of grain remaining in the tank decreases (<W2,
Here, W2 <W1), and hydraulic oil is supplied to and discharged from the left and right rolling cylinders so that the vehicle body inclination angle is in the downward-sloping state. In this way, the grains in the tank can be discharged smoothly. When the grain amount is used up, the discharge shutter 15 is closed. When the elevating switch 25 outputs the descent, the tank cylinder mechanism 13 is shortened and the grain storage tank 8 descends and returns to a predetermined position.

The operation of the above example will be described. When the combine 1 is advanced in the field and the planted grain culms are mowed by the mowing unit 9, the mowed grain culms are sequentially fed to the threshing unit 6 and sorted and shredded. Of these, the sized grain is supplied to the grain storage tank 8 at the lowering stop position via the first deep-fried grain cylinder 14.

When the storage amount of the grain storage tank 8 reaches the full Wmax, the grain amount detection sensor 26 detects this and outputs a sound to a full buzzer (not shown). The auxiliary worker puts the transport vehicle with the grain tank (for example, a light truck) near the grain storage tank 8 side of the combine and waits. When a worker boarding the combine operates the raising / lowering switch 25 to the ascending side, the tank cylinder mechanism 13 extends by supplying / discharging the hydraulic oil, and raises the grain storage tank 8 along the columns 10, 10. When reaching the highest position, the tank cylinder mechanism 13 stops extending and the tank 8 also stops.
Then, when the opening / closing switch 24 is operated to open, the electric motor 16 rotates in the normal direction to open the discharge shutter 15. Along with this, the grains in the tank 8 are discharged and flowed down, and are transferred to the grain tank of the carrier, which looks downward.

Wma when the storage amount W of the grain storage tank 8 is full
As it decreases from the x state through W1 and W2, the left and right rolling cylinders 4L and 4L, so that the left and right tilt angles of the vehicle body 5 are slightly lower left upper right tilt, horizontal, and upper left lower right tilt as described above.
It controls the 4R. When the grain discharge from the grain storage tank 8 is completed, the open / close switch 24 is operated to the closing side and the elevating switch 25 is operated to the lower side. The electric motor 16 is rotated in the reverse direction so that the opening / closing shutter 15 is closed, and the grain storage tank 8 is lowered by the shortening operation of the tank cylinder mechanism 13.

The tank cylinder mechanism of the grain storage tank 8 is actuated by an ascending restriction signal in response to an ascending restriction signal from the control section 17, and the tank is not lifted even by operating the elevating switch 25 to the ascending side. Will be things. When the shift control lever 28 is not in the neutral position and the vehicle body is tilted to the left or right by a predetermined angle or more,
Will not output the regulation to raise the tank. Therefore, the combine vehicle body tends to become unstable due to the tank rising, but when the tank is rising, the stable state of the vehicle body is selected as much as possible so that the work can be performed safely.

In addition to the above, the conditions for the lifting control by the lifting control means are as follows: when the reaper 9 is in the working posture, for example, when it is below a predetermined height based on the detection result of the height detection sensor 30, or outside the figure threshing. When the threshing parts are in the driving state with the clutch on, that is, when the condition is presumed to be in the working state, the rising regulating means regulates the raising of the grain storage tank. Detects whether the combine car body is moving and regulates the rise while the car body is moving,
It is detected whether the grain storage tank 8 itself is in the lowered position, and when it is not in the lowered position, the rising is regulated.

7 and 8 show another embodiment of the lifting mechanism of the grain storage tank 8, in which the upper support column 36 is positioned toward the upper side of the vertical lower support column 35 which is vertically installed on the vehicle body 5 and is located outside the vehicle body 5. Rollers 3 are provided on the left and right ends of the support arms 37, 37 provided in an inclined shape projecting toward one side and provided in front of and behind the grain storage tank 8.
8, 38 ... Are arranged, and these rollers 38, 38 ...
Is fitted to the upper column 36. The support arm 3
The intermediate portions of 7, 37 are connected to the tank cylinder mechanisms 13, 13. By doing so, the tank 8 at the grain discharging position can be lifted up to the side of the combine 1 on the side of the vehicle body 5. For this reason, when the rear part of the carrier laterally attached to the combine 1 is brought closest to the side, the discharge tube 8c of the tank 8 can be projected laterally to the side of the vehicle body 5, so that the combine 1 and the side can be approached with a margin. The contact accident can be prevented.

9 and 10 show still another embodiment of the raising mechanism of the grain storage tank 8, in which the upper support column 41 is provided between the lower support column 40 and the upper support column 41 which are perpendicular to the vehicle body 5. An intermediate support column 42 that is displaced outward is provided, and the lower support column 40 and the upper support column 41 are connected. The grain storage tank 8 is configured to be movable from the intermediate column 42 to the upper column 41. The structure in which the tank 8 is supported so as to be vertically slidable with respect to the support column is the same as in the above example. With this configuration as well, when the rear part of the carrier to be laterally attached to the combine 1 is brought to the closest position, the discharge cylinder 8c of the tank 8 can be projected to the lateral side of the vehicle body 5, so that there is a margin between the combine 1 and the lateral side. You can get closer.

[Brief description of drawings]

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

FIG. 2 is an overall rear view of the combine.

FIG. 3 is a discharge part of a grain storage tank.

FIG. 4 is a control block diagram.

FIG. 5 is a flowchart.

FIG. 6 is a flowchart.

FIG. 7 is an overall side view of a combine of another embodiment.

FIG. 8 is an overall rear view of a combine of another embodiment.

FIG. 9 is an overall side view of a combine of still another embodiment.

FIG. 10 is an overall rear view of a combine according to still another embodiment.

[Explanation of symbols]

1 ... Combine, 4L, 4R ... Rolling cylinder, 5
... moving car body, 6 ... threshing section, 8 ... grain storage tank, 9 ... harvesting section, 10 ... posts, 11 ... cylindrical body, 12 ... reverse V frame,
13 ... Tank cylinder mechanism, 14 ... First fried cylinder, 15 ...
Ejection shutter, 16 ... Electric motor, 17 ... Control unit, 18
... control valve, 19 ... ascending solenoid, 20 ... descending solenoid, 21 ... extension solenoid, 22 ... shortening solenoid, 23 ... alarm buzzer, 24 ... open / close switch, 25 ...
Elevating switch, 26 ... Grain amount detection sensor, 27 ... Vehicle body tilt detection sensor, 28 ... Gear shift operation lever, 29 ... Neutral position detection sensor, 30 ... Height detection sensor

Claims (5)

[Claims] 1. A grain storage tank for storing grains that are sequentially supplied on a moving vehicle body is provided along a support column so as to be able to move up and down, and at the tank rising position, a grain is appropriately supplied from a discharge port. The grain storage device for a work vehicle, wherein the grain storage device is provided so that it can be discharged from the machine. 2. A structure for detecting whether or not the traveling speed change device of the work vehicle is at the neutral position is provided, and when it is not at the neutral position, the ascending regulation device regulates the elevation of the grain storage tank. The grain storage device for a work vehicle according to claim 1, wherein 3. A structure for detecting whether or not a working device that is vertically movable with respect to a work vehicle is in a working state, and when the working device is in a working state, the rising regulating means regulates the rise of the grain storage tank. The grain storage device for a work vehicle according to claim 1, wherein 4. A means for detecting the inclination of the body of a work vehicle is provided, and when the inclination is equal to or higher than a predetermined inclination, the elevation restricting means restricts the elevation of the grain storage tank. The grain storage device for a work vehicle according to 1. 5. A grain storage tank for storing grains to be sequentially supplied on the moving vehicle body is provided so as to be vertically movable, and the grains can be appropriately discharged from the discharge port from the discharge port at the tank rising position. In the grain storage device provided in, the raising and lowering means for raising and lowering the grain storage tank is configured, and the vehicle body is configured to be adjustable in inclination with respect to the traveling frame of the work vehicle, and when the inclination of the vehicle body becomes a predetermined value or more. A grain storage device for a working vehicle configured to regulate the ascending interlock by the elevating means and adjust the vehicle body to a predetermined tilt range to allow the ascending interlock.