JPH1075643A - Combine harvester equipped with grain-discharging device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a combine harvester equipped with a grain-discharging device, enhanced in the safely of a grain-discharging auger for carrying the grains on the operation of the combine harvester and preventing the generation of an injury accident, etc. SOLUTION: An approximately flat plate-like safety shutter 16 is supported in the discharging port 15 of an auger in a state capable of being swung on a support point 16b. An elastic means for energizing the safety shutter 16 so that the safety shutter 16 is opened by the weight of grains, when the grains are discharged, and further so that the safety shutter is closed against the weight of the safety shutter 16, when the grains are not discharged. When the grains are not discharged, a person can approach a discharging port 15 but can not approach a driving mechanism in the grain-discharging device. A grain-discharging operation is automatically stopped with a detection means for detecting that a discharging port-opening or closing means closes the discharging port 15, and the grain-discharging device is automatically store in the combine harvester, thus enabling to prevent the generation of a serious accident comprising the invasion of the hand or body of a person into the grain- discharging device.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a combine provided with a grain discharging device.

[0002]

2. Description of the Related Art In a combine operation, grains that have been threshed by a threshing device are stored in a tank, and when a suitable amount is obtained, the grains are transferred to another container by a discharge auger. This other container is a grain carrier that is usually parked on a farm road outside the field, and requires a considerably long transfer distance to transfer grains from the combine to the grain carrier. Becomes longer, and the vehicle cannot travel with the discharge auger in the discharge posture. Therefore, it is necessary to store the discharge auger in the storage posture position with respect to the combine body after the discharge, and then travel. However, accidents may occur if the combiner is run in the discharge position after forgetting the storage operation of the discharge auger.To prevent this, it is necessary to detect that the grains discharged from the discharge auger have run out. hand,
Japanese Patent Application Laid-Open Nos. 1-181725 and 1-118125 disclose power control to the discharge auger based on the detection signal and control to save the discharge auger in the storage posture position to save labor and improve safety. It is disclosed in, for example, JP-A-2-31612.

[0003]

However, there are few suitable grain discharge detecting means for detecting that there is no grain discharged from the discharge auger. For example, the invention described in Japanese Patent Application Laid-Open No. 1-181725 discloses a method in which a grain transported by providing a piezoelectric element on a flat plate as a grain discharge detection means detects an impact level when the flat particle collides with the flat plate, using a piezoelectric element. Although it is assumed that the grains discharged from the discharge auger have disappeared due to the decrease in the impact level, the piezoelectric element is detected in a state where the grains discharged from the discharge auger are deposited and clogged on the flat plate of the grain discharge detection means. The impact level when the grain collides with the flat plate becomes zero and generates an erroneous signal that the grain discharged from the discharge auger has disappeared, so that the discharge auger is stored in the storage posture position based on this erroneous signal. May cause erroneous operation control.

[0004] The discharge auger for transferring grains in the combine operation is a screw conveyor for transferring the grains by rotating screw blades. Therefore, at the discharge section of the discharge auger, the ends of the rotating screw blades rotate during the transfer of the grains. In particular, there is a danger that serious accidents may occur if human hands or bodies intrude after grain transfer is completed.

Accordingly, an object of the present invention is to enhance the safety of a discharge auger portion for transferring grain in a combine operation, and to prevent the occurrence of personal injury or the like.

[0006]

The above object of the present invention is achieved by the following constitution. That is, in a combine provided with a grain discharging device (for example, the vertical auger 10 and the discharging auger 2 in the embodiment) for discharging the grains stored in the grain tank from the discharging outlet, the outlet (for example, the discharging outlet in the embodiment) 1
5) The opening / closing means (for example, the safety shutter 16 in the embodiment) for opening the discharge port by the weight of the grain when the grain is discharged into the inside, and closing the discharge port when the grain is not discharged, and the urging means thereof Detecting means for detecting that the outlet opening / closing means closes the outlet (for example, the position detecting means of the safety shutter 16 in the embodiment); and a grain discharging device by detecting the closing of the outlet of the detecting means. Is a combine provided with a grain discharging device having a grain discharging device driving means (for example, a brake motor 10c and a hydraulic cylinder for driving the brake motor 10c according to the embodiment) for storing the grain discharging device in the auger receiver.

According to the present invention, the opening / closing means (the safety shutter 16 of the embodiment) for closing the discharge port provided inside the discharge port of the grain discharge device is mounted on the grain when discharging the grain. The grain is swung by the weight of the grain to open the discharge port and discharge the grain, but when the discharge of the grain is stopped, it is urged to close and the discharge port is closed, so the grain is discharged. Even if a person approaches the discharge port when not in operation, the person cannot approach the drive mechanism (for example, the end of the transfer screw 2s of the embodiment on the discharge port 15 side) inside the grain discharge device, and the discharge port opening / closing means Detecting means for detecting the closing of the discharge port (for example, the position detecting means of the safety shutter 16 in the embodiment)
Automatically stops the grain discharge operation by the grain stop instruction signal of
The grain discharger is automatically stored in the auger tray.

As described above, in the present invention, the automatic opening / closing control of the opening / closing means of the discharge port of the grain discharge device closes the discharge port even when a person or the like approaches the discharge port when the grain is not being discharged. It is safe because it cannot enter the inside of the discharge port, and there is no danger of a serious accident occurring due to the intrusion of the human hand or body into the grain discharge device after the completion of the grain transfer.

[0009]

Embodiments of the present invention will be described below. FIG. 1 is a side view of the combine 1, FIG. 2 is a plan view of a main part thereof, and FIG.
As shown in FIG. 1, a grain tank 9 is mounted on a machine frame 41 provided on an upper portion of the traveling device 7 and a vertical auger 10 is rotatably provided. On the upper part of the vertical auger 10, a discharge auger 2 is provided so as to be able to move up and down. At the lower part of the grain tank 9, a lower transfer screw 9s is provided, and transfer screws 10s and 2s for transferring the grains inside the vertical auger 10 and the discharge auger 2 are provided.

In the grain discharging device of the combine 1 that discharges the grains stored in the grain tank 9 from the auger outlet 15 via the vertical auger 10 and the discharging auger 2, the inside of the auger outlet 15 is substantially Flat safety shutter 1
6 (FIG. 3) and a rotating shaft 16b (FIG. 3) for swingably supporting the safety shutter 16, and the height of the rotating shaft 16b coincides with the lower surface of the outlet 2b of the discharge auger 2. Or
A rotating shaft 16b which is located at a slightly lower position and has its axis centered on the wall surface of the discharge port 15 farther from the outlet 2b of the discharge auger 2.
When the grain is ejected, the safety shutter 16 is opened with the weight of the grain, and when the grain is not ejected, the torque spring () is urged to close the safety shutter 16 against the weight of the safety shutter 16 ( Not shown), at least the position sensor 18 of the safety shutter 16 for detecting the closing of the safety shutter 16, and the wall of the discharge port 15 near the outlet of the discharge auger 2 that is lower than the axis of the rotation shaft 16 b. A grain detection sensor 17 for detecting grain clogging is provided at the position, and the lower transfer screw 9s is provided on condition that the closing signal of the position detection means of the safety shutter 16 is transmitted.
The transfer screws 10s and 2s are stopped, and the discharge auger 2 is rotated from the grain discharge position (c) (FIG. 2) under the condition that the grain transfer screws 9s, 10s and 2s are stopped. Movement to the storage posture position (a), and then control to lower the discharge auger 2 and automatically store it in the auger receiver 12;
When the switch 12a (FIG. 1) detects that the combine unit 2 has been stored, the combine unit includes a grain discharging device that performs control to stop the power unit of the combine unit 1.

The discharge auger 2 for transferring grains in the combine operation is a screw conveyer for transferring the grains by the rotating screw blades 2s.
In the discharge section, the end of the rotating screw blade 2s is rotating during grain transfer, and there is a risk that a serious accident may occur especially when human hands or body etc. enter after grain transfer is completed,
In order to prevent this, it is necessary to improve the safety by making the structure that can discharge the grain but cannot enter anything from the outside.

In the present invention, a safety shutter 16 is provided at the discharge port 15 of the discharge auger 2, and the safety shutter 16 is opened during the discharge of the kernel, and is closed when the kernel is exhausted and the discharge of the kernel is completed. In addition, if means for detecting the release and closing of the safety shutter 16 is provided, even when a person or the like approaches the discharge port 15 of the discharge auger 2 when the grain is not being discharged, the discharge port 15 is closed and the discharge It is safe because it cannot enter the inside of the outlet 15 and the closing of the safety shutter 16 can be detected and used as a signal of the end of the discharge of the grain.

The safety shutter 16 provided inside the discharge port 15 at the tip of the discharge auger 2 has a flat plate shape. When discharging the kernel, the safety shutter 16 is pushed down by the weight of the kernel placed on the safety shutter 16. The discharge port 15 is opened to discharge the grains, but when the discharge of the grains is stopped, the force of the torque spring (not shown) against the weight of the safety shutter 16 that urges the safety shutter 16 in the closing direction is used. Since the safety shutter 16 is configured to be closed,
A transfer screw 2s that rotates inside the discharge auger 2 even when a person approaches the discharge port 15 when the kernel is not discharging.
And the position sensor 18 is provided on the safety shutter 16 so that the safety shutter 16
Opening and closing can detect the presence / absence of grain discharge. A safety shutter closing instruction signal and a grain detection sensor 17 provided inside the discharge port can be detected.
The grain discharging operation is automatically stopped by the grain stop instruction signal of the auger receiver 12 (FIG. 3), and the automatic storage control of the discharge auger 2 in the auger receiver 12 is performed.

If a grain stop instruction signal from the grain detection sensor 17 is transmitted even though the safety shutter closing instruction signal is not transmitted, it is determined that the auger discharge port is clogged, and the engine of the combine 1 is started. Perform stop control.

The discharge auger discharge port 15 is provided with a discharge port cover 20 (FIG. 3) for covering the discharge auger discharge port 15.
At the front position of the leading end, an operation switch mounting portion 20b formed in a recess so that the heads of the operation switches do not protrude is provided, and the operation switch mounting portion 20b moves up and down the discharge auger 2 and moves the vertical auger 10 Since operation switches such as turning, a grain discharging operation of the augers 2 and 10 and automatic storage of the discharging auger 2 are provided, the discharging auger 2 and the vertical auger 10 are provided.
In addition, the operation of the device becomes extremely easy, and since the operation switches do not protrude, the operation switches do not touch other objects and malfunction.

Next, an embodiment of the present invention will be described. Embodiment The combine of the present embodiment has the same configuration as the combine shown in FIGS. 1 to 4, but the combine of the present embodiment is also shown in FIGS. FIG. 5 is a side view of the combine on the side opposite to FIG. 1, and FIG. 6 is a schematic side view showing the cutting device 8 and the supply / conveyance device 42 and the like inside the combine.
FIG. 8 shows a top view of the combine, and FIG. 8 is a top view mainly showing the culm device inside the combine.

In front of the body frame 41 having the traveling device 7, a mowing device 8 and a supply and transport device 42 are provided. The cutting device 8 includes a weeding tool 43 for weeding the planted grain culm, a raising case 45 for causing the planted grain culm,
It comprises a cutting blade 46 for cutting the planted grain culm and a stock transfer device 47 for holding the grain culm cut by the cutting blade 46 and conveying it backward. Behind the stock carrier 47,
A supply transport device 42 is provided for taking over and transporting the grain culm transported from the stock transport device 47.

The reaping device 8 is supported by a reaping device support frame 49 that moves up and down about a fulcrum above the traveling device 7 at substantially the left and right intermediate portions.
The mowing device 8 is configured to move up and down together with the mowing device support frame 49.

Above the machine frame 41, a threshing device 51 having a feed chain 50 for taking over and transporting the grain culm conveyed from the supply / conveyance device 42, and a grain that has been threshed and sorted by the threshing device 51, A grain tank 9 for temporarily storing is placed. Behind the threshing device 51, there is provided a cutter 54 for cutting the culm conveyed from the culm chain 53. Further, other working machines other than the cutter 54, such as a knotter for binding the culm, may be mounted.

FIG. 8 shows a plan view of the culm device.
The culm after threshing by the culm chain 53 and the culm spike chain 55 is conveyed to the rear of the combine.

As shown in FIG. 1 and the like, a vertical auger 10 is erected at the rear of the grain tank 9 so as to be movable in the vertical direction, and is connected to the upper end of the vertical auger 10 to have a length substantially in the front-rear direction of the body. A discharge auger 2 of the same length is provided rotatably in the left-right direction, and an auger receiver 12 for storing the discharge auger 2 in the upper part of the threshing device 6 in a storage posture position of the discharge auger 2 (a) (FIG. 2). ing.

At the bottom of the grain tank 9, a lower transfer screw 9s for transferring grains in the backward direction of the combine 1 is provided, and inside the vertical auger 10, a transfer screw 10s for transferring grains up is provided. Further, inside the discharge auger 2, a transfer screw 2s for transferring the grain forward is provided, and the lower transfer screw 9s, the transfer screws 10s and 2s are rotated at the same time by the grain discharge operation signal and rotate inside the grain tank 9. The grains are discharged from the auger discharge port 15 via the vertical auger 10 and the discharge auger 2.

The rear portion of the grain tank 9 and the vertical auger 10 are rotatably connected by a rotary joint (not shown), and a gear 10 a fixed to the vertical auger 10 is connected to a brake motor 10.
When the pinion 10b fixedly mounted on the shaft c engages and drives, the vertical auger 10 is turned together with the discharge auger 2, and the vertical auger 10 and the discharge auger 2 are vertically rotatably connected at a rotary connection portion. , Vertical auger 10 and discharge auger 2
The discharge auger 2 can be turned up and down by the expansion and contraction of the actuator 2a interposed between
The auger discharge port 15 can be set at any position within the movable range of the discharge auger 2 in the horizontal and vertical directions.

The brake motor 10c is a two-speed motor or a variable-speed motor. The actuator 2a can also expand and contract at high and low two speeds so that the discharge auger 2 can be positioned at a high speed. It is configured so that it can be driven at low speed.

Each of the brake motor 10c and the actuator 2a has a position sensor (not shown).
Is transmitted to the control circuit, and the position information is transmitted to the driver's seat.

FIG. 3 is a longitudinal sectional view of the auger outlet 15 and the outlet cover 20 including the vicinity of the outlet of the auger 2. The auger outlet 15 has its inlet 15a connected to the outlet 2b of the discharge auger 2 and the outlet 15 of the auger outlet 15
b is opened downward of the auger outlet main body 15 and has a safety shutter 16 inside, a rotation shaft 16b of the safety shutter,
The safety shutter 16 has a structure in which a grain detection sensor 17 and a position sensor 18 are provided, and the safety shutter 16 has a flat plate-like shape and has a rotation axis 16b of the safety shutter at one end serving as a rotation center. The auger outlet 1 whose height matches the lower surface of the outlet 2b of the discharge auger 2 or is slightly lower and farther from the outlet 2b of the discharge auger 2
5, a torque spring (not shown) for urging the safety shutter 16 to be held at a substantially horizontal position to close the safety shutter 16, a stopper 16a abutting on the safety shutter 16 in the closed position, and at least a safety shutter 16 Has a detector (not shown) for detecting that the position is in the closed position.

Incidentally, as shown in FIG.
The fulcrum 16b of 6 can be arranged on or near the extension of the lowest point of the discharge auger 2. In this case, the safety shutter 1 is positioned below the extension of the lowest point of the discharge auger 2.
Compared to the case shown by the broken line in which the fulcrum 16b 'of 6' is provided, the kernel is less likely to hit the fulcrum in the vicinity of the fulcrum of the safety shutter 16, and the moment to the open side of the safety shutter 16 (Wl ₁ <Wl ₂ ; The weight of the grains increases, and the grains can be easily discharged from the discharge port without being clogged on the safety shutter 16. When the discharge of the grains starts from the discharge auger 2, the weight of the grains overcomes the urging force of the torque spring, and the safety shutter 16 is rotated about the rotation shaft 16b as a fulcrum, and the grains are discharged from the outlet 15 of the auger discharge port 15.
Discharge from b.

The grain detection sensor 17 is fixed below the wall surface of the auger discharge port 15 on the opposite side of the rotation shaft 16b of the safety shutter 16 to detect grain clogging. Further, the grain detection sensor 17 is provided at the auger discharge port 15 on the opposite side of the fulcrum 16b. After the safety shutter 16 is closed, the kernel detection sensor 17 can reliably detect that the auger discharge port 15 is clogged with kernels.

Further, if the grain detection sensor 1 is linked not only to the detection of the grain but also to the engine stop circuit at the time of the detection of the grain, the engine can be reliably stopped when the grain is clogged.

By operating / deactivating each of the discharge auger 2, the safety shutter 16, and the kernel detection sensor 17, the following state of the kernel discharge can be understood. Discharge auger ON, safety shutter open, no grain detection sensor detected, normal, no clogging. When the discharge auger is ON, the safety shutter is closed, and the grain detection sensor is not detected, the grain tank is empty and no clogging occurs. When the discharge auger is ON, the safety shutter is opened, and the grain detection sensor is not detected, it is determined that the clogging is clogged. However, there is also a failure of the safety shutter position detector and / or the grain detection sensor. The discharge auger is ON, the safety shutter is closed, and the grain detection sensor is detected. In some cases, the safety shutter position detector and / or the grain detection sensor fail.

The auger outlet 15 has its upper half covered with a removable outlet cover 20, and the outlet cover tip 2
Operation switches can be provided in Oa. The operation switches are attached to an operation switch mounting portion 20b formed in a recess so that the head of the operation switches does not protrude at the front position of the outlet cover tip portion 20a. It should be noted that an illumination light 20c for night work can be attached to a lower portion of the outlet cover 20. These operation switches and the illumination light 20c are connected to the wire harness 20c.
It is electrically connected at d.

Operation switch mounting portion 2 of outlet cover 20
9 (a perspective view of the distal end portion of the discharge auger) and FIG. 10 (a view taken along line DD in FIG. 3).

The outlet cover 20 has a waterproof structure made of a synthetic resin molded product or the like, and prevents the vibration of the discharge auger 2 from being transmitted through vibration isolating means such as an anti-vibration rubber 26 provided at the auger outlet 15. And detachably attached.

FIG. 10 shows a front view of the operation switch mounting portion 20b provided at the outlet cover tip portion 20a. The operation switch mounting portion 20b has direction switches 21a, 21b, 21c for indicating the moving direction of the discharge auger 2. Also provided are a direction switch panel 21 equipped with 21d, a storage switch 22 for automatically storing the discharge auger 2, a grain discharge switch 23 for driving and stopping the discharge auger 2, a manual switch 24, an emergency stop switch 25, and the like. .

Direction switches 21a, 21b, 21c, 2
1d is a push button type in which the direction of movement of the discharge auger 2 is indicated by an arrow on each switch head. The circuit is closed only while the push button is pressed, and the discharge auger 2 is moved in the direction of the arrow on the switch head. Can be done.

The storage switch 22 and the grain discharge switch 23 are provided with rotating shafts 22c, 23c above switch boxes 22a, 23a for safety as shown in FIGS. Swingable switch lever 22
b, 23b, and normally urges the switch levers 22b, 23b in the closing direction with a torque spring (not shown) to switch the switch boxes 22a, 23a to the switch levers 22b, 2b.
3b, the switch circuit is opened in this state. To close the switch circuit, the switch lever 22b is closed.
It has a structure that requires an operation of inserting a finger into the lower part of 23b and pulling it up.

FIG. 11 shows a state in which the switch circuit is always open, and FIG. 12 shows a state in which a finger is inserted into the lower part of the switch levers 22b and 23b and a pulling operation is performed to close the switch circuit. It is configured such that no operation is performed even if the user touches 22, 23.

It is preferable that the manual switch 24 shown in FIG. 10 has the same safety as the storage switch 22 and the grain discharging switch 23. When the switch is operated, the braking force is weakened and the discharging auger 2 is manually moved to set the position. When the operation of the switch 24 is stopped as soon as the setting is completed, the braking force returns to the original state.

The emergency stop switch 25 is for stopping all the mechanisms in an emergency, and it is desirable to provide the emergency stop switch 25 at a position that is easily visible and to cover it with a destruction plate so as not to be operated carelessly.

The operation of the embodiment of the present invention constructed as described above is as follows. The grain rods cut by the cutting device 8 of the combine 1 shown in FIG. 1 and the like are threshed by the threshing device 6 (FIG. 2), and the grains are stored in the grain tank 9. Reaping,
When the threshing is completed or the grain tank 9 becomes full, the traveling device 7 of the combine 1 is driven to move the combine 1 shown in FIG. Are discharged to the grain transport vehicle 30.

Operation lever 1 in the driver's seat of combine 1
4 (FIG. 14), the discharge auger 2 is rotated from the storage posture position (a) shown in FIG. 2 to the grain discharge position (c), and after appropriately operating the discharge opening height, the combiner 1 When the grain discharge lever 13 (FIG. 14) in the driver's seat is operated, the lower transfer screw 9 s and the transfer screws 10 s and 2 s (FIG. 1) below the Glen tank rotate at the same time, and the grains in the grain tank 9 are removed. Vertical auger 10 and discharge auger 2
, And is discharged from the auger discharge port 15 to the bed 30a of the grain carrier 30 as shown in FIG.

The operator operates the operation lever 14 (FIG. 14) in the driver's seat so that the grain pile 30b on the bed 30a of the grain carrier 30 is not unevenly distributed. For this reason, he leaves the driver's seat of the combine 1 and gets on the bed 30a of the grain transport vehicle 30 to discharge the auger 2
By operating the operation switches (FIG. 10) provided on the distal end portion 20a of the distal end outlet cover 20, the kernels are discharged from the outlet 15a to an appropriate position on the bed 30a of the kernel carrier 30. Can be adjusted as follows.

When the position of the outlet 15a is adjusted while the grains are being discharged from the outlet 15a of the discharge auger 2, the weight of the grains is added to the weight of the discharge auger 2 itself,
In addition, since the discharge auger 2 is moved while receiving the discharge reaction force of the grains to be discharged, the brake motor 10c for turning the discharge auger 2 (FIG. 1) and the actuator 2a for rotating the discharge auger 2 up and down. (FIG. 1) both have appropriate rotational torque and braking force.

The discharge ports 15a and 15b (FIG. 3) are moved to the discharge auger 2 by the operation lever 14 of the cab or the push button operation switch on the front surface of the discharge port cover 20 at the end of the discharge auger 2.
Is set to an arbitrary position within the movable range in the horizontal and vertical directions, and after the setting, the braking force of the brake motor 10c and the actuator 2a holds the discharge auger 2 at the set position. Will not move on its own, even if it is affected by the vibrations caused by the road or the slopes.

Further, it is also possible to manually operate the discharge ports 15a and 15b to finely set the positions to arbitrary positions. That is, when the manual switch 24 is operated, the braking force of the brake motor 10c and the actuator 2a is weakened, and the discharge auger 2 can be moved manually.
Since the 5a cannot move significantly, it is easy to manually set the fine position. After the setting, the operation of the manual switch 24 is stopped and the braking force returns to normal and the discharge auger 2 is held at the set position. It does not move on its own.

In this embodiment, the operator operates the grain carrier 3
Even when the operator gets on the loading bed 30a and approaches the auger discharge port 15 at the tip of the discharge auger 2 and operates the operation switches, the safety shutter 16 is provided inside the discharge port 15.
There is no danger of being caught in the transfer screw 2s rotating inside the discharge auger 2.

That is, the safety shutter 16 provided inside the auger discharge port 15 is a torque for urging the weight of the kernel in the direction to close the safety shutter 16 when the discharge auger 2 is operating and discharging the kernel. Overcoming the urging force of the spring (not shown), rotating the flat plate of the safety shutter 16 to open the auger outlet 15 and discharge the grains, so that a person cannot approach the inside of the auger outlet 15. There is no danger. In addition, when the discharge of the grain is stopped, the safety shutter 16 is closed by the urging force of the torque spring that urges the safety shutter 16 in the closing direction, so that even when a person approaches the auger discharge port 15, the human body rotates inside the discharge auger 2. There is no danger because the transfer screw 2s cannot be approached.

The operator operates the carrier 30 of the grain carrier 30.
a, when operating the operation switches to appropriately move the position of the auger discharge port 15 at the tip of the discharge auger 2, the operation switches are conventionally mounted on the lower surface of the discharge auger 2. When the auger is moved in the direction in which the operator is standing and swung, the discharge auger 2 may collide with the operator. However, in the present invention, the auger outlet 15 for connecting the operation switches to the tip of the discharge auger 2 is provided.
Is provided at the distal end portion 20a of the outlet cover 20 that covers the
Since the operation of the operation switches by the operator is performed at the front position of the discharge port cover end portion 20a, there is no possibility that the discharge auger 2 will collide with the operator regardless of the direction in which the discharge auger 2 is moved and turned.

If the heads of the operation switches protrude, the heads of the operation switches may touch other objects and cause unexpected malfunctions, for example, when operated in a driver's seat. In the above, the operation switch mounting portion 20b is formed in a recess at the front position of the outlet cover tip portion 20a so that the head of the operation switch does not protrude, so that the head of the operation switch touches other objects. The storage switch 22 for automatically storing the discharge auger 2 and the grain discharge switch 23 for operating and stopping the discharge auger 2 are operated by the switch lever 22 without unexpected malfunction.
Since the structure requires the operation of inserting a finger into the lower part of b and 23b and pulling up, even if the switch touches another object, it will never malfunction.

As with the storage switch 22 and the grain discharge switch 23, the manual switch 24 has no possibility of malfunction.

The control of the grain discharge and the discharge auger is performed as follows. After traveling the combine 1 near the grain transport vehicle 30 and stopping it at a predetermined position, the operating lever 14 of the driver's seat is operated to operate the engine (not shown) of the combine 1 as a power source and the discharge unit 15 of the discharge auger 2. Is set from the storage posture position (a) shown in FIG. 2 to a grain discharge position (c) which is an appropriate position on the bed 30a of the grain transport vehicle 30. After the discharge unit 15 of the discharge auger 2 is set to the grain discharge position (C), when the grain discharge lever 13 is operated, the lower transfer screw 9s and the transfer screws 10s and 2s below the Glen tank rotate at the same time to rotate the grain. The grains in the grain tank 9 are transferred to the bed 30 a of the grain transport vehicle 30. The turning angle β from the storage posture position (a) of the discharge auger 2 to the grain discharge position (c) is at most about 245 degrees.

The discharge auger 2 between the storage posture position (a) of the discharge auger 2 shown in FIG. 2 and the position shown in (b) of FIG.
Since the auger discharge port 15 is located above the combine 1, the lower transfer screw 9s and the transfer screws 10s and 2s are controlled so as not to rotate even if the grain discharge lever 13 is operated. Therefore vertical auger 1
If the angle sensor is less than α degrees even if the grain discharge lever 13 is operated as shown in FIG. 16, the lower transfer screw is provided with an angle sensor (not shown) for the brake motor 10 c that rotates the discharge auger 2 by rotating 0. 9s, and the transfer screws 10s and 2s do not rotate.

In the manual operation, when the grain tank 9 becomes empty or the bed 30a of the transport vehicle 30 becomes full, the grain discharge lever 13 in the driver's seat or the above-described grain discharge switch 23 is operated. Then, the lower transfer screw 9s and the transfer screws 10s and 2s are stopped. Next, the operation lever 14 is operated to move the discharge auger 2 from the grain discharge position (c) to the storage position (a), and when the storage position (a) is reached, the discharge auger 2 is stored in the auger receiver 12. I do. Thereafter, the combine 1 travels toward the destination. When the operating lever 14 is operated to lower the auger discharge port 15 during the discharge of the grain, the auger discharge port 15 is raised to the normal height, and then the discharge auger 2 is stored from the grain discharge position (c). It is necessary to move to position (a).

The automatic operation of the discharge auger 2 is performed as follows. First, the automatic overhang operation of the discharge auger 2 is performed by moving the combine 1 close to the grain transport vehicle 30 and stopping it at a predetermined position, as in the case of the manual operation, and then setting the overhang angle of the driver's seat shown in FIG. After setting the extension position of the discharge auger 2 with the dial 14a, that is, the angle β of the grain discharge position (c), the operator automatically operates the discharge auger automatic extension switch 14b of the driver's seat shown in FIG.

As shown in FIG. 17, the flow of the automatic extension operation control of the discharge auger 2 is as follows. The discharge auger 2 is raised and the brake motor 10c shown in FIG. The auger 2 is turned to the angle β of the grain discharge position (c) of the discharge auger 2 set by the overhang position setting dial 14a, and the position of the discharge auger 2 reaches the angle β of the grain discharge position (c). When this is detected, the brake motor 10c is stopped, and at the same time, the position of the discharge auger 2 is fixed by the brake. Then, the lower transfer screw 9s, the transfer screws 10s and 2s start rotating at the same time, and the grain in the grain tank 9 is started. Auger that discharges grains 2
Is transported to the bed 30a of the grain transport vehicle 30 via.

Among the automatic operations of the discharge auger 2, the storage operation of the discharge auger 2 is performed as follows. When the bed 30a of the grain transport vehicle 30 becomes full, first, the grain discharge lever 13 or the grain discharge switch 23 is operated to stop the lower transfer screw 9s, the transfer screws 10s and 2s, and the grain tank The discharge of the grain of No. 9 is stopped, and then the storage switch 22 is operated.

As shown in FIG. 18, the flow of the automatic storage operation control of the discharge auger 2 is that the grain detection sensor 17 instructs to stop the grain, and that the position detector of the safety shutter 16 The lower transfer screw 9s and the transfer screws 10s and 2s are stopped on condition that the closing is instructed, and first, the discharge auger 2 is turned up and down by the expansion and contraction of the actuator 2a to return the discharge auger 2 to the normal position. After detecting that the discharge auger 2 is at the normal position by a position sensor (not shown) of the actuator 2a, the brake motor 10c is driven to turn the discharge auger 2 and move to the storage posture position (a). When the discharge auger 2 arrives at the storage position (a), the brake motor 10c is stopped, and the actuator 2a is driven again to lower the discharge auger 2 and store it in the auger receiver 12.

As shown in FIG. 18, the idling operation can be performed by reducing the rotation speed of an engine (not shown) of the combine 1 on condition that the storing operation of the discharge auger 2 is completed.

According to this embodiment, the safety shutter 16 is provided inside the auger discharge port 15 at the tip of the discharge auger 2.
When discharging the grains, the weight of the grains rotates the safety shutter 16 and opens the discharge port 15 to discharge the grains.
When the discharge of the grain is stopped, the safety shutter 16 is closed by the urging force of the torque spring that urges the safety shutter 16 in the closing direction, so that even if a person approaches the auger discharge port 15, the transfer that rotates inside the discharge auger 2 is performed. It is extremely safe without being able to approach the screw 2s, and the safety shutter 16 is provided with an opening / closing instruction detector so that the discharge of the grain can be detected. The transfer screws 10 s and 2 s are stopped, and the discharge auger 2 can be automatically stored. The clogging of the grain is detected by detecting the clogging of the grain by the opening signal of the safety shutter 16 and the grain stop instruction signal of the grain detection sensor 17. The engine can be stopped.

Further, a discharge port cover 20 is provided at the auger discharge port 15 at the tip of the discharge auger 2 so as to cover the outer upper half of the auger discharge port 15, and operation switches and the like are provided in front of the discharge port cover tip section 20a. An operation switch mounting portion 20b formed in a recessed portion so that the head does not protrude is provided, and operation switches for turning and moving the discharging auger 2, discharging the grain, and automatically storing the discharging auger 2 are provided on the operation switch mounting portion 20b. With such a configuration, the operation of the discharge auger 2 becomes extremely easy and safe.

[Brief description of the drawings]

FIG. 1 is a side view of a combine according to an embodiment of the present invention.

FIG. 2 is a plan view of the combine shown in FIG. 1 and shows a turning angle of a discharge auger.

FIG. 3 is a vertical sectional view of an auger outlet and an outlet cover including the vicinity of the outlet of the discharge auger of the combine shown in FIG. 1;

FIG. 4 is a longitudinal sectional view of an auger outlet and an outlet cover showing an example of the arrangement of a safety shutter near an outlet of a discharge auger of the combine.

FIG. 5 is a side view of the combine on the side opposite to FIG. 1;

FIG. 6 is a schematic side view showing a mowing device, a supply and transport device, and the like inside the combine shown in FIG. 1;

FIG. 7 is a top view of the combine shown in FIG. 1;

FIG. 8 is a top view centering on the culling device inside the combine of FIG. 1;

9 is a perspective view of an outlet portion of a discharge auger of the combine shown in FIG. 1;

10 is a front view of the operation switch mounting portion of the outlet cover, as viewed in the direction of the arrow DD in FIG. 3;

11 is a perspective view of a storage switch and a grain discharge switch in an operation switch mounting portion of the discharge port cover of FIG. 10;

12 is a perspective view of a storage switch and a grain discharge switch in an operation switch mounting portion of the discharge port cover of FIG. 10;

FIG. 13 is an explanatory diagram showing a relationship between the combine shown in FIG. 1, its discharge auger discharge port, and a grain carrier.

FIG. 14 is a perspective view showing an operation lever of a driver seat of the combine shown in FIG. 1;

FIG. 15 is a diagram showing a protrusion angle setting dial of a discharge auger in a driver's seat of the combine in FIG. 1;

FIG. 16 is a diagram showing a flow of control in which the transfer screw is not rotated when the angle sensor is less than α degrees even when the grain discharging lever of the combine of FIG. 1 is operated.

FIG. 17 is a diagram showing a flow of automatic overhang operation control of the discharge auger of the combine shown in FIG. 1;

18 is a diagram showing a flow of automatic storage operation control of a discharge auger of the combine in FIG. 1;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Combine 2 Discharge auger 2a Actuator 2s Transfer screw 6 Threshing device 7 Traveling device 8 Cutting device 9 Grain tank 9s Lower transfer screw 10 Vertical auger 10c Brake motor 10s Transfer screw 12 Auger receiver 13 Grain discharge lever 14 Operating lever 14a Discharge auger Overhang position setting dial 14b Discharge auger automatic overhang switch 15a Inlet 15b Outlet 16 Safety shutter 16a Stopper 16b Rotating shaft 17 Kernel detection sensor 18 Position sensor 20 Discharge outlet cover 20a Discharge outlet cover tip 20b Operation switch mounting part 20c Illumination light 20d Wire harness 21 Direction switch mounting panel 21a to 21d Direction switch 22 to indicate the moving direction of the discharge auger 22 Automatically collect discharge auger 2 Storage switch 22a Switch box 22b Switch lever 22c Rotating shaft 23 Grain discharge switch for operating and stopping the discharge auger 23a Switch box 23b Switch lever 23c Rotating shaft 24 Manual switch for moving the discharge auger 25 Emergency stop switch 26 Prevention Vibration rubber 30 Grain carrier 41 Body frame 42 Feeding and transporting device 43 Weeding tool 45 Raising case 46 Cutting blade 47 Stock transfer device 49 Cutting device support frame 50 Feed chain 51 Threshing device 53 Excretory chain 54 Cutter 55 Excretory culm Ear chain (a) Storage posture position (b) Section of swivel angle α of discharge auger from storage posture position (c) Grain discharge position

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yasushi Ihara Yasura 1 Tobe-cho, Iyo-gun, Ehime Prefecture Iseki Agricultural Machinery Co., Ltd. Within the department (72) Inventor Masami Matsui 1 Yagura, Tobe-cho, Iyo-gun, Ehime Prefecture Iseki Agricultural Machinery Co., Ltd. Koji Izumi 1 Yakura, Tobe-cho, Iyo-gun, Ehime Prefecture Iseki Agricultural Machinery Co., Ltd.

Claims (1)

[Claims] 1. A combine equipped with a grain discharging device for discharging a grain stored in a grain tank from a discharge port, wherein when the grain is discharged into the discharge port, the discharge port is determined by the weight of the grain. And an opening / closing means for closing the discharge port when the grain is not discharged, and an urging means therefor. Further, a detection means for detecting that the discharge port opening / closing means closes the discharge port, and a discharge port of the detection means A combine equipped with a grain discharging device, characterized by having a control means for automatically storing the grain discharging device in an auger receiver upon detection of closure.