JPH11187754A - Grain-discharging device in combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a grain-discharging device having improved turning operability of a discharging auger and increased efficiency of grain-discharging operation. SOLUTION: This grain-discharging device has a discharging auger 2 for discharging grain in a grain tank 1, an automatic switch for selectively and automatically turning the discharging auger 2 to either one side of a housing position A on a machine body or a discharging position B by a single operation, and urgently stopping the discharging auger 2 in the automatic turning, and a manual operation lever for preferentially turning the discharging auger 2 for the automatic turning by the automatic switch. The automatic turning range between the housing position A and the discharging position B is formed so as to be >=180 deg..

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine grain discharging device.

[0002]

2. Description of the Related Art Conventionally, a combine has been provided with a discharge auger for appropriately discharging the grains stored in a grain tank to the outside of the machine. The discharge auger is configured to be freely rotatable from a storage position of the combine on the fuselage to a discharge work position on the outside of the fuselage, and the turning operation is performed by the operation of a manually operated lever disposed near the operator's seat. , By operating a drive device such as an electric motor or a hydraulic cylinder.

In recent years, attempts have been made to automate the turning of the discharge auger from a storage position on the machine to a discharge operation position on the outside of the machine. As such technology,
For example, as disclosed in Japanese Patent Application Laid-Open No. 63-313523, a discharge auger for discharging grains in a grain tank and an operation after selecting a turning direction by a switching lever, the discharge auger. An operation switch for selectively automatically rotating the gas between the storage position and the discharge position on the fuselage and for urgently stopping the discharge auger during the automatic rotation, and an automatic rotation by the switching lever and the operation switch. There is known a combine grain discharging device provided with a manual operation switch capable of turning the discharging auger with higher priority.

Further, as disclosed in Japanese Patent Application No. 1-156073, a discharge auger for discharging grains in a grain tank, and by independently operating the discharge auger, the discharge auger is stored and discharged on the machine body. A grain discharging device for a combine provided with an operation switch capable of selectively automatically turning between the above and an emergency stop of the discharging auger during the automatic turning, and a manual operating switch capable of rotating the discharging auger. Have been tried.

[0005]

The above-mentioned JP-A-63-3
According to the technique disclosed in Japanese Patent No. 13523, when the discharge auger is selectively and automatically turned to one side between the storage position and the discharge position, first, the switching lever is operated to discharge the discharge auger. Select either the position side or the storage position side, and the automatic turning direction thereof.

Then, after that, the operation switch is operated,
Thus, the automatic turning is started for the first time. Therefore,
Unless the switching operation of the switching lever and the operation of the operation switch are separately performed, the automatic turning cannot be performed, and the discharging operation is not performed.
The operability of the moth was poor and the work efficiency was low.

[0007] In the above-described combined grain discharging apparatus disclosed in Japanese Patent Application No. 1-156073, when the manual operation switch is operated while the discharging auger is automatically turning by the operation switch, the discharging is performed. It is unknown whether the auger follows this manual operation. On the other hand, when the discharge auger is automatically rotated between the storage position and the discharge position, if the automatic rotation range between the storage position and the discharge position is limited to a range smaller than 180 degrees, the storage position on the machine is changed. There remains a range in which the discharge operation cannot be performed even if the user turns in the left or right direction as the starting point.

As a result, the discharge position that can be reached by the automatic rotation is limited, so that the frequency of performing the discharge position adjustment by the manual rotation operation is increased, and the efficiency of the grain discharge operation by the automatic rotation can be sufficiently achieved. Did not.

[0009]

The present invention employs the following technical means in order to solve the above-mentioned problems. That is, the discharge auger 2 for discharging the grains in the grain tank 1 and the discharge auger 2 are selectively moved to either one of the storage position A and the discharge position B on the machine body by a single operation. The automatic switches 26, 27, and 28 that can automatically stop the discharge auger 2 during the automatic rotation, and turn the discharge auger 2 prior to the automatic rotation by the automatic switches 26 and 27. And an automatic turning range between the storage position (a) and the discharge position (b) is formed to be larger than 180 degrees. Things.

With this configuration, the combine operation is performed, and the harvested grains are stored in the grain tank 1 provided on the machine body. Then, the grains are appropriately discharged to a carrier or the like of the waiting carrier. In this case, the discharge auger 2 stored in the storage position A on the body is replaced with the carrier of the carrier. And the like.

When the automatic switch 26 is operated,
The discharge auger 2 automatically turns from the storage position A to the discharge position B and stops. When the grain discharging operation is completed and the automatic switch 27 is operated, the discharging auger 2 is
The machine automatically turns from the discharge position B to the storage position A and stops. In addition, when there is a danger of collision with an obstacle during such automatic turning, the automatic turning can be stopped by operating the automatic switch 28.

Further, even during such automatic turning,
By operating the manual operation lever 16, the discharge auger 2 can be manually turned prior to the automatic turning.
Further, since the discharge auger 2 can be automatically turned by more than 180 degrees by operating the automatic switches 26 and 27, the reachable range is increased by this automatic turning, and the manual operation lever 16 for adjusting the discharge position is operated. Frequency decreases.

[0013]

As described above, according to the present invention, the discharge auger 2 for discharging the grains in the grain tank 1 and the discharge auger 2 by the independent operation are stored in the storage position A on the machine body. Automatic switches 26, 27, 28 for selectively automatically turning to one of the discharge positions B and for urgently stopping the discharge auger 2 during the automatic turning, and the automatic switches 26, 27.
And a manual operation lever 16 capable of rotating the discharge auger 2 prior to the automatic rotation by the automatic rotation described above, and the automatic rotation range between the storage position A and the discharge position B is made larger than 180 degrees. Since the combine grain discharging device is characterized in that the discharging auger 2 can be automatically turned between the storage position and the discharging position by a simple operation,
The turning operability of the mower 2 is improved, and the working efficiency can be improved.

Further, during the automatic turning of the discharge auger 2, the automatic turning can be stopped urgently, and the safety can be improved. Furthermore, since the manual turning operation has a priority during the automatic turning of the discharge auger 2, the turning operability of the discharging auger 2 is further improved, and the working efficiency can be further improved. Further, since the range that can be reached by the automatic turning becomes large, the improvement of the working efficiency by automating the turning of the discharge auger 2 can be made more remarkable.

[0015]

Embodiments of the present invention will be described with reference to the drawings. Combine is mounted on a vehicle body having a left-right traveling device 7 on a cutting device 8 for cutting grain stalks.
Threshing device 9 at the rear for inheriting and threshing grain culms transferred and harvested in the above, a grain tank 1 for accommodating and storing the grains threshed by this threshing device 9 using a fryer or the like. ing.

The grain tank 1 is provided at a rear end of one side of the vehicle body. A vertically extending grain tube 10 is provided at a rear end of a grain discharge gutter which extends rearward along the bottom. A discharge auger 2 is provided at the upper end of the fryer cylinder 10 so as to be rotatable up and down. It has a rotatable configuration. The fryer 10 is configured to rotate left and right through gears by the expansion and contraction of the rotation cylinder 11. Also, the discharge
The mower 2 is configured to be vertically rotated with respect to the fryer cylinder 10 by expansion and contraction of the upper and lower cylinders 12.

An upper limit switch 13 for detecting the upper limit of the vertical rotation range of the discharge auger 2 and stopping the rotation is provided, and a lower limit switch 14 for detecting the lower limit and stopping the rotation. A discharge position sensor 4 for detecting that the discharge auger 2 has turned to the discharge position b and stopping the rotation;
A maximum turning position sensor 5 is provided for detecting that the mower 2 has further turned and turned to the maximum turning position c and stops turning.

The discharge position sensor 4 is provided with a discharge cam 4a which is turned on by being brought into contact with the discharge switch S1 provided on the machine body side.
The discharge auger 2 is turned and the discharge switch S1 is turned on, so that the discharge auger 2 is at the discharge position B. The maximum turning position sensor 5 is provided with a maximum turning cam 5a on the outer periphery of the hoisting cylinder 10 which comes into contact with the discharge switch S1 to turn on the discharge switch S1, and the discharge auger 2 turns to discharge. Switch S
When 1 is turned on, the discharge auger 2 is set to the maximum turning position c. As described above, the discharge position sensor 4 and the maximum turning position sensor 5 are configured such that the discharging cam 4a and the maximum turning cam 5a are provided for a single discharge switch S1.

A storage switch S2 for detecting that the discharge auger 2 has turned to the storage position A and stopping the rotation is provided on the body side, and a storage cam 15 which is in contact with the storage switch S2 is provided on the outer periphery of the hoisting cylinder 10. Is provided. An operation lever (manual operation lever) 1 on the upper surface of the threshing device 9 at the rear side of the cockpit, for manually rotating the discharge auger 2 vertically and horizontally.
6 are provided.

The operation lever 16 is configured to be tiltable from the neutral position to the front, rear, left and right. When the operation lever 16 is tilted in the front and rear direction, the lower switch 17 and the upper switch 18 are turned on, and the lower solenoid 19 and the upper solenoid 20 of the vertical cylinder 12 are turned on. The oil passage is switched by energizing, and the upper and lower cylinders 12 are expanded and contracted so that the discharge auger 2 is turned up and down. Operation lever
When the lever 16 is tilted in the left and right direction, the left turning switch 21 and the right turning switch 22 are turned on, and the oil path is switched by energizing the left turning solenoid 23 and the right turning solenoid 24 of the turning cylinder 11 to switch the oil path. 11 is expanded and contracted
The gear 2 is configured to be rotated left and right.

An automatic discharge switch 26 for switching the discharge auger 2 between a storage position A in which the auger receiver 25 on the upper surface of the threshing device 9 is locked and a discharge position B rotated from the storage position A.
And an automatic storage switch 27, and a stop switch 28 for emergency stop of the discharge auger 2 during the automatic turning. For the turning control device 3, the automatic discharge switch 2
6. When operation information and detection information of the automatic storage switch 27, the stop switch 28, the upper limit switch 13, the lower limit switch 14, the discharge position sensor 4, the maximum turning position sensor 5, and the storage switch S2 are input, First, control is performed such that control signals are output from the turning control device 3 to the ascending solenoid 20, the descending solenoid 19, the left turning solenoid 23, and the right turning solenoid 24, respectively.

When the automatic discharge switch 26 is turned on, an ascending control signal is output from the turning control device 3 to extend the upper and lower cylinders 12, and the discharge auger 2 separates from the auger receiver 25 and rotates upward. , Stops at the position where the upper limit switch 13 is turned ON. When the upper limit switch 13 is turned on, a left turn output control signal is output, the rotation cylinder 11 is extended, the discharge auger 2 turns left, and when the discharge cam 4a comes into contact with the discharge switch S1 and turns on, the turn is turned. Stop. In this way, the discharge auger 2 is automatically turned from the storage position A to the discharge position B.

The discharge auger 2 located at the discharge position B is turned up and down and left and right by the operation lever 16 so that the discharge position can be adjusted. When the discharge auger 2 is beyond the discharge position B, that is, in the position where the discharge switch S1 is turned off, when the automatic discharge switch 26 is turned on, the discharge auger 2 is turned to the maximum turning position C, and the discharge switch is turned on. S1
When the maximum turning cam 5a comes into contact with, the turning stops.

When the discharge auger 2 is at a position beyond the discharge position B, the automatic discharge switch 26 allows the automatic turning switch 26 to appropriately rotate to the maximum turning position C. When the automatic storage switch 27 is turned on after the grain discharging operation is completed, the upward control signal is output from the turning control device 3 to extend the upper and lower cylinders 12, and the discharging auger 2 is set to the upper limit switch 1
It is rotated upward until 3 is turned on. When the upper limit switch 13 is turned on, a right turn control signal is output, the rotary cylinder 11 contracts, and the discharge auger 2 turns right and turns when the storage cam 15 comes into contact with the storage switch S2 and is turned on. To stop. When the storage switch S2 is turned on, a lowering control signal is output, the upper and lower cylinders 12 are contracted, and the discharge auger 2 is rotated downward. The gear 2 further descends and is received by the auger receiver 25. Thus, the discharge auger 2 at the discharge position B is stored in the storage position A.

[Brief description of the drawings]

FIG. 1 is a control circuit diagram.

FIG. 2 is a partially enlarged plan view.

FIG. 3 is a plan view of the combine.

FIG. 4 is a side view of the combine.

[Explanation of symbols]

 1 Grain tank 2 Discharge auger 16 Manual operation lever 26 Automatic switch (automatic discharge switch) 27 Automatic switch (automatic storage switch) 28 Automatic switch (stop switch) i Storage position b Discharge position

Claims (1)

[Claims] 1. A discharge auger 2 for discharging grains in a grain tank 1 and, by independent operation, the discharge auger 2 is placed on one of a storage position A and a discharge position B on the machine body. Automatic switches 26, 27, and 28 which can be selectively turned automatically and the discharge auger 2 can be stopped urgently during the automatic turning, and the discharge auger 2 is given priority over the automatic turning by the automatic switches 26 and 27. Characterized in that a manual operation lever 16 capable of swiveling is provided, and an automatic swivel range between the storage position A and the discharge position B is formed to be larger than 180 degrees.