JP2007043939A - Operation device of grain-unloader of combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an operation device of an auger for unloading grains in a combine harvester which has improved operability by a wireless command means. <P>SOLUTION: The operation device of the grain-unloader has a receiving antenna 57 and an approaching and turning switch at a commanding means 42. The receiving antenna 57 receives the command information wirelessly sent from a wireless command means 42 for commanding the turning operation of the auger 9 for unloading the grains, and transmits the received information to a controlling means. The approaching and turning switch fixes the sent direction of the command information based on the received information received by the receiving antenna 57, and operates the controlling means so that the auger 9 may be turned to the direction. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a grain carry-out device configured to be turnable with respect to a machine body by a turning actuator, a manually operated command means for issuing command information for the grain carry-out device, and an actuator based on the command information. It is related with the operating device of the grain carrying-out apparatus in the combine provided with the control means which controls operation | movement of (2).

  As a prior art of an operation device of a grain discharge auger as a grain unloading device in a combine having the above-described configuration, as the manual operation type instruction means, a grain is separately provided from the operation unit on the aircraft side provided in the control unit of the aircraft. An operation unit on the auger side provided at the tip of the grain discharging auger is provided, and commands the turning operation of the grain discharging auger, the lifting operation, and the switching operation between the grain discharging state and the discharging stop state. The operation unit on the auger side is configured as a wired remote controller connected to the tip of the grain discharging auger via an electric wire (Patent Document 1).

  With the manual operation type command means having such a configuration, since the operation position is limited to the control part of the fuselage and the tip of the grain discharge auger, the wireless type that can be operated at a more free position There are those that introduce the command means. This wireless command means is equipped with a turning switch that issues a left turn or right turn command to turn the auger so that the auger can be turned artificially (Patent Document 2).

JP 2000-270671 A JP 2003-325032 A (paragraph numbers [0046] to [0048], FIG. 7)

As described above, when the manually operated command means is wireless, the operation position is not limited to the operation part of the machine body or the tip part of the auger, but the grain sent out from the grain carry-out device is When there is a driver in the vicinity of the receiving transport vehicle and the command means is operated, the selection of the auger turning direction may be confusing.
In other words, the turning direction of the auger is set on the premise that the auger will be operated while seated on the control part of the aircraft. May cause discrepancies, which may make it difficult to make a judgment and may result in incorrect operation.

  An object of the present invention is to provide an operation device for a grain carry-out device that is improved in operability with a wireless command means.

〔Constitution〕
The operation device of the grain carry-out device in the combine according to claim 1, wherein the command means is configured as a wireless command means that emits the command information as a radio signal,
A receiving antenna for receiving the radio signal is provided;
Proximity swivel switch that activates the control means to identify the direction in which the command information is transmitted based on the received information received by the receiving antenna and to turn the grain carry-out device toward the direction Is provided in the command means, and the effects thereof are as follows.

[Function and effect]
That is, when a proximity turning switch provided on the manually operated command means is operated, the grain carry-out device turns in the direction in which the command means operated by the operator is located.
Therefore, it is not necessary for the operator to select the command means for rotating the grain carrying-out device in any direction, and the pilot is located in the direction in which the operator wants to turn the grain carrying-out device. By simply operating the switch, the grain carrying-out device can be turned to a desired position.

〔Constitution〕
According to a second aspect of the present invention, there is provided the operation device for the grain carrying-out device in the combine according to the first aspect, wherein the command means is equipped with a turning switch for issuing a left turn or a right turn command.

[Function and effect]
That is, the proximity swivel switch is a switch that is used effectively when it cannot be determined whether to turn the grain carry-out device in the left or right direction. Therefore, even when operating with wireless command means, it is possible to operate a turning switch that issues a left turn or right turn command if it can be determined to turn left or right. is there. In addition, when operating the wireless command means in the vicinity of the operation unit of the machine body, it is easy to determine the left and right direction of the grain carry-out device, so on the contrary, a turning switch that issues a left turn or right turn command is provided. It may be useful to operate.
Considering such points, it is considered that it is sufficient to provide a turn switch for issuing a left turn or right turn command together with a proximity turn switch.

〔Constitution〕
The characteristic structure of the operation apparatus of the grain carrying-out apparatus in the combine of Claim 3 is the manual operation type instruction | indication means in Claim 1 or 2, and the raising / lowering operation of the said grain carrying-out apparatus, and a grain discharge | emission In order to switch between the state and the discharge stop state,
The command means is provided with an elevating operation switch and a grain discharge state changeover switch, and the operation and effect thereof are as follows.

[Function and effect]
That is, the manually operated command means, together with a switch for starting and stopping the turning operation, wirelessly commands the start and stop of the lifting operation and the start and stop of the grain discharge state switching operation by radio signals. For example, when a grain is discharged to a transport vehicle or the like using this grain unloading device, an operator near the target location for the grain discharging by the grain unloading device is When commanded using the wireless command means, a radio signal transmitted wirelessly from the wireless command means is received by a receiving antenna provided on the airframe side and transmitted to the control means. Based on the transmitted signal, the control means controls the operation of the turning actuator, the lifting / lowering actuator, or the discharging actuator that has been commanded to operate.

  Thus, when transferring the grain from the grain unloading device to a transporting vehicle or the like, wireless command means for the lifting operation, turning operation, unloading and unloading operation of the necessary grain unloading device This improves the operability.

〔Constitution〕
The characteristic structure of the operation apparatus of the grain carrying-out apparatus in the combine of Claim 4 exists in the point which has equipped the said receiving antenna in the turning center of the said grain conveying apparatus or its vicinity in Claims 1-3. The effects are as follows.

[Function and effect]
That is, when specifying the direction in which the command information is transmitted based on the reception information received by the reception antenna, the installation position of the reception antenna and the turning center of the grain conveyance device are close to each other, Since the received information can be used as it is without requiring any ingenuity in signal processing in the control means, the control configuration is easy.

〔Constitution〕
The operation device of the grain carrying-out device in the combine according to claim 5 is the operation device according to any one of claims 1 to 4, wherein the receiving antenna has high directivity and can be swiveled in a wide angle range during reception. At some point, the effects are as follows.

[Function and effect]
The receiving antenna is set to have high directivity. Therefore, when the information is emitted from the command means in the direction toward the receiving antenna, the reception sensitivity is high, and when the information from the command means is emitted from the direction away from the direction toward the reception antenna, the reception sensitivity is low. .
Therefore, by turning the receiving antenna, the receiving sensitivity is increased in the direction in which the command means is located, and the receiving sensitivity is decreased in the other directions, and it becomes easy to specify the direction in which the command information is transmitted.

Hereinafter, an embodiment of an operation device of an auger (grain carry-out device) for grain discharge in a combine according to the present invention will be described based on the drawings.
As shown in FIGS. 1 and 2, the combine is attached to the front portion of the machine body V provided on the upper part of the pair of left and right crawler travel devices 1 in a state where the cutting unit 3 can swing around the horizontal axis. In the machine body V, the control unit 2, the threshing unit 4 for threshing and sorting the harvested cereal, the grain tank 5 for storing the grains sorted and recovered by the threshing unit 4, and the grain tank 5 are stored. A grain discharging auger 9 as a grain carrying-out device for discharging the grain out of the machine is equipped.

  A bottom screw conveyor 7 is provided at the bottom of the grain tank 5 along the front-rear direction, and a vertical feed screw conveyor 8 is extended from the conveying terminal end of the bottom screw conveyor 7 in a state where the bevel gear is linked upward. In the upper part of the vertical feed screw conveyor 8, the grain discharging auger 9 is swingable around the horizontal axis P1 and swiveled around the vertical axis P2 while being linked to the bevel gear. Equipped with. FIG. 2 shows a state in which the grain discharging auger 9 is swung to the storing turning position HP, and the grain discharging auger 9 is lowered and stored in the state swung to the storing turning position HP. The grain discharge auger 9 is stored by being received by the receiving tool 30 as a holding tool.

  An output pulley 13 </ b> A of a belt tension type discharge clutch 13 that intermittently transmits power to the bottom screw conveyor 7 from the engine E provided at the right front part of the machine body is attached to the conveyance start end of the bottom screw conveyor 7. Further, the vertical feed screw conveyor 8 includes a vertical conveyor screw 8A linked to the bottom screw conveyor 7 via a bevel gear, and a cylindrical case 8B that covers and is connected to the grain tank 5 in communication.

  When the structure of the grain discharging auger 9 is described, this grain discharging auger 9 (hereinafter simply referred to as an auger) is a base end side auger portion 9A linked to the vertical conveyor screw 8A via a bevel gear. And a distal end side auger portion 9B supported so as to be freely retractable with respect to the proximal end side auger portion 9A. Specifically, as shown in FIGS. 3 and 4, the outer case 32 of the distal auger portion 9B is externally fitted to the cylindrical outer case 31 of the proximal auger portion 9A so as to be slidable in the screw axis direction. The rotating screw 34 of the distal end side auger portion 9B is provided in a state of being positioned below the rotating screw 35 of the proximal end side auger portion 9A. A rack gear 36 is formed on the outer peripheral portion of the lower end side of the exterior case 31 in the base end side auger portion 9A, and a pinion gear 37 that meshes with the rack gear 36 and a telescopic electric motor M1 that rotates the pinion gear 37 (extension actuator) Is provided in the outer case 32 of the tip side auger portion 9B.

  On the other hand, the rotating shaft 38 of the base end side auger portion 9A is constituted by a cylindrical shaft, and a transmission shaft 39 having a hexagonal outer shape fitted to the hexagonal inner surface of the rotating shaft 38 is rotatable integrally with the rotating shaft 38. The transmission shaft 39 and the rotating screw 34 of the distal end side auger portion 9B are interlocked and connected by a chain transmission mechanism 40 provided at the distal end side portion of the exterior case 32 in the distal end side auger portion 9B. Has been. Moreover, the downward grain discharge port 10 is formed in the tip side lower side location of the exterior case 32 of the tip side auger part 9B.

As shown in FIG. 3, when the electric motor for expansion / contraction M1 (hereinafter abbreviated as an expansion / contraction motor) is rotationally driven in the forward / reverse direction, the distal auger portion 9B is rotationally driven by the proximal auger portion 9A. The auger 9 can be expanded and contracted by sliding and moving in the direction of the conveyor axis while maintaining the state of being rotationally driven in conjunction with the.
Further, an expansion / contraction amount detection sensor 41 using a multi-rotation type potentiometer that is rotated with the rotation of the pinion gear 37 is provided. Then, a telescopic operation possible range is set in advance, and based on the detection information of the expansion / contraction amount detection sensor 41, when reaching the limit position of the expansion / contraction operation, the expansion / contraction is automatically performed so that the sliding operation of the distal auger portion 9B is automatically stopped. The motor M1 is controlled.

  The outer case 31 of the base end side auger portion 9A is connected to the cylindrical case 8B of the vertical conveyor screw 8A through the rotary case 6. The rotary case 6 is connected to the cylindrical case of the vertical feed screw conveyor 8. 8B is connected so as to be relatively rotatable around the vertical axis P2 and is connected to the exterior case 31 of the proximal end auger portion 9A so as to be relatively rotatable around the horizontal axis P1.

As shown in FIGS. 1 and 9, there is provided an electric motor M2 for clutch operation (an example of a discharge actuator) for switching the discharge clutch 13 between an on state and a disengagement state. The discharge clutch 13 is switched to the on state by driving the electric motor M2 (hereinafter abbreviated as a clutch motor) in the forward direction, and the discharge clutch 13 is switched to the cut state by driving the clutch motor M2 in the reverse direction. It has a configuration that can be.
When the discharge clutch 13 is switched to the on state, the bottom screw conveyor 7, the vertical screw conveyor 8 and the auger 9 are driven by the power of the engine E transmitted via the discharge clutch 13 and stored in the grain tank 5. The grain is discharged from the grain outlet 10 at the tip of the auger 9.

The drive configuration for the turning operation of the auger 9 will be described. As shown in FIG. 5, a large-diameter gear 11 for turning drive is fixed to the outer surface of the rotating case 6, and a pinion gear that meshes with the large-diameter gear 11. A turning electric motor (an example of a turning actuator) M3 that rotationally drives 12 is fixed to the longitudinal feed screw conveyor 8, and the turning electric motor M3 (hereinafter abbreviated as a turning motor) is driven forward and backward. The auger 9 is configured to be turned around the longitudinal axis P2 and to stop turning as the turning motor M3 is stopped. In the figure, Ry is a turning position detection sensor using a multi-rotation type potentiometer that detects the turning position of the auger 9, and is rotated simultaneously with the turning drive gear 11 by a gear 12 driven by a turning motor M3. It has become so.
As shown in FIG. 2, the turnable range is set in advance, and the auger 9 has reached the left limit position LE and the right limit position RE of the turnable range based on the detection information of the turn position detection sensor Ry. In some cases, the turning motor M3 is controlled so that the turning of the auger 9 is automatically stopped.

  Next, the driving means for the raising / lowering operation of the auger 9 will be described. As shown in FIG. 5, the raising / lowering hydraulic cylinder (an example of the raising / lowering actuator) is provided between the base end portion of the auger 9 and the rotating case 6. 15, the auger 9 is raised around the horizontal axis P1 as the lifting hydraulic cylinder 15 is extended, and the auger 9 is moved to the horizontal axis P1 as the lifting hydraulic cylinder 15 is shortened. It is configured to be lowered around. An upper limit switch 14 that is turned on when the auger 9 is at the upper limit position of the lifting operation range is provided.

  The control unit 2 is provided with a lever-type operation unit 20 for instructing operation commands for turning and raising / lowering the auger 9. As shown in FIG. 2, the operation unit 20 on the machine body side is provided with an operation lever 20A that is urged so as to return to the center position and can be swung in the front-rear direction and the left-right direction. When the operating lever 20A is tilted forward, the ascending command switch S1 is turned on and an ascending command is issued. When the operating lever 20A is tilted forward, the descending command switch S2 is actuated and the descending command is issued. When the operation lever 20A is tilted to the left, the right turn command switch S3 is turned on and a right turn command is issued. When the operation lever 20A is tilted to the right, the left turn command switch S4 is turned on. Then, a left turn command is issued (see FIG. 9). In the state where the operation lever 20A is returned to the center position, a turning stop command for stopping the turning operation of the auger 9 and a lifting stop command for stopping the lifting operation of the auger 9 are commanded.

  As shown in FIGS. 2 and 9, an automatic switch 21 for automatically moving the auger 9 to the storage position or the target discharge position is provided near the operation unit 20 on the machine body side, and the auger during movement. A stop switch 22 for stopping 9, a discharge position setting volume 23 for setting the target discharge position, a clutch on / off switch 24 for turning on / off the discharge clutch 13, and an auger 9 for extending. An extension switch 25 and a shortening switch 26 for shortening the auger 9 are provided.

  And in this combine, as a manual operation-type command means which commands the turning operation of the auger 9, the raising / lowering operation, and the switching operation between the grain discharging state and the discharging stop state, the turning operation, the lifting operation, the telescopic operation, A wireless operation device 42 is provided as wireless instruction means for instructing each switching operation of the discharge clutch 13 with a wireless signal. The wireless operation device 42 is mainly used when an operator near the transport vehicle operates the grain discharging operation to the transport vehicle.

More specifically, as shown in FIGS. 8 and 9, the wireless operation device 42 is configured as a small and lightweight device so that an operator can easily carry it, and radio waves having different frequencies can be operated by the above-described operations. Are transmitted as radio signals corresponding to each of the above, the ascending command switch 43 for commanding the ascent of the auger 9, the descending command switch 44 for commanding the descending of the auger 9, and the auger 9 are moved in the left direction. A left turn command switch 45 for turning the auger 9, a right turn command switch 46 for turning the auger 9 to move in the right direction, an automatic switch 47 for automatically moving the auger 9 to the storage position or the target discharge position, A movement stop switch 48 for stopping the auger 9 during movement, a discharge switch 49 for bringing the discharge clutch 13 into the clutch engaged state, and the discharge cup A discharge stop switch 50 for bringing the latch 13 into the clutch disengagement state, an extension command switch 51 for extending the auger 9, and a shortening command switch 52 for shortening the auger 9 are provided.
Each of these switches is configured to be urged to return to an off state so that it is turned on when a finger is pressed and turned off when the finger is released.

  Further, the wireless operation device 42 oscillates a signal having a specific frequency that is set differently for each switch when the switch is turned on in response to the operation of each command switch. A signal transmission circuit 53 and a transmission antenna 54 for transmitting the signal as a radio wave having a constant output, and a battery 55 for supplying power to them are provided. In addition, a slide operation type power switch 56 is provided to turn on / off the power supply from the battery 55 to each part. When the power switch 56 is not operated, the power switch 56 is turned off. Therefore, the auger 9 is not operated.

That is, when the ascending command switch 43 is pressed and turned on, a radio signal having a frequency for ascending operation corresponding to the ascending command is transmitted to instruct the start of the ascending operation. When it is turned off, the transmission of the radio signal having the frequency for the ascending operation is finished, and the stop of the ascending operation is commanded.
When the descent command switch 44 is turned on by pushing it with a finger, a radio signal having a frequency for descent operation corresponding to the descent command is transmitted to command the start of the descent operation. Then, the transmission of the radio signal having the frequency for the lowering operation is finished, and the stop of the lowering operation is instructed.
Therefore, the ascending command switch 43 and the descending command switch 44 constitute a command operating tool for lifting operation.

When the left turn command switch 45 is pressed and turned on with a finger, a radio signal having a frequency for left turn operation corresponding to the left turn command is transmitted to instruct the start of the left turn operation. When the finger is removed from the position, the transmission of the radio signal having the frequency for the left turn operation is finished, and the stop of the left turn operation is instructed.
When the right turn command switch 46 is turned on by pushing it with a finger, a radio signal having a frequency for the right turn operation corresponding to the right turn command is transmitted to command the start of the right turn operation. When the command switch 46 is released and turned off, the transmission of the radio signal with the frequency for the right turn operation is finished, and the stop of the right turn operation is instructed.
Accordingly, the left turn command switch 45 and the right turn command switch 46 form a command operation tool for turning operation.

When the extension command switch 51 is pressed and turned on, a radio signal having a frequency for extension operation corresponding to the extension command is transmitted to instruct the start of the extension operation, and the extension command switch 51 is released. When turned off, the transmission of the radio signal having the frequency for the extension operation is completed, and the stop of the extension operation is instructed.
When the shortening command switch 52 is pressed and turned on, a radio signal having a frequency for shortening corresponding to the shortening command is transmitted to command the start of the shortening operation. When the shortening command switch 52 is released and turned off, the shortening command switch 52 is turned off. Then, the transmission of the radio signal having the frequency for the shortening operation is finished, and the stop of the shortening operation is instructed.
Accordingly, the extension command switch 51 and the shortening command switch 52 constitute a command operating tool for expansion and contraction operation.

When the discharge switch 49 is turned on by pushing it with a finger, the start of the discharge operation is instructed by transmitting a radio signal of a discharge frequency corresponding to the discharge command, and when the release switch 49 is released and turned off, Then, the transmission of the radio signal having the discharge frequency is finished, and the stop of the discharge operation is instructed.
When the discharge stop switch 50 is turned on by pushing it with a finger, a radio signal having a frequency for discharging stop corresponding to the discharge stop command is transmitted to command start of the discharge stop operation, and the finger is released from the discharge stop switch 50. Then, the transmission of the radio signal having the frequency for stopping the discharge is finished, and the stop of the operation for stopping the discharge is commanded.
Accordingly, the discharge switch 49 and the discharge stop switch 50 constitute a command operation tool for switching operation.

  When the automatic switch 47 is turned on by pushing with a finger, the start of an operation for automatically moving the auger 9 toward the target turning position is instructed. The stop of the automatic movement operation is not instructed until is moved to the target turning position. When the movement is stopped during the movement, the movement stop switch 48 is pressed by turning it on with a finger and is stopped.

The aircraft is provided with a receiving antenna 57 and a receiver 58 for receiving a radio signal by radio waves transmitted from the wireless operation device 42, and any command information according to the received frequency of the received signal is provided. And a signal processing device 59 for converting into a control signal corresponding to the command information.
Further, as shown in FIGS. 1 and 2, the receiving antenna 57 and the receiver 58 are provided in the vicinity of the turning center (vertical axis P2) at the base end portion of the auger 9.

  As shown in FIG. 9, a control device H using a microcomputer is provided, and the command switch S1, S2 of the turning position detection sensor Ry, the upper limit switch 14, and the operation unit 20 on the fuselage side is provided in the control device H. , S3, S4, the automatic switch 21, the stop switch 22, the discharge position setting volume 23, and the clutch on / off switch 24 are input through wires, and control corresponding to the operation of the command switches is executed. Is configured to do.

A control structure for different turning operations of the auger 9 will be described.
As the configuration for turning the auger 9, the left / right turn command switches 45 and 46 provided in the wireless operation device 42 or the left / right turn command switches S3 and S4 provided in the operation unit 20 of the operation unit are used. I took it.

  On the other hand, in the present invention, the following control is performed, and a switch configuration for performing the control is adopted. That is, as shown in FIG. 7 and FIG. 8, when the turn command information is issued by the proximity turn switch 61, the direction in which the command information is sent is specified based on the received information received by the receiving antenna 57. Then, the auger 9 is operated to turn in the direction toward the direction, and the grain discharge port 10 is controlled to be positioned on the loading platform such as the transport vehicle 60.

In order to perform the control as described above, the wireless operation device 42 is provided with the following push button switch. That is, as shown in FIGS. 7 and 8, a proximity turning switch 61 that prompts the proximity turning operation is provided between the left and right turning operation switches 45 and 46.
That is, when the operator having the wireless operation device 42 operates the proximity turning switch 61 located near the transport vehicle 60, the command information is received by the receiving antenna 57 provided at the base end portion of the auger 9, Based on the received information, the signal processing device 59 and the control device H specify the direction in which the operator (wireless operation device) is located. When the direction in which the operator is located is specified, the auger 9 is activated so as to turn in that direction.

  Here, when the auger 9 is activated in the detection direction, it is necessary to detect the position of the operator. The detection structure is as follows. That is, the performance of the receiving antenna 57 is made highly directional. This is because it is difficult to specify the transmission direction when the antenna has high reception performance over a wide range. As shown in FIG. 12, even with this highly directional receiving antenna 57, the receiving antenna 57 is turned by a drive motor 57A in order to detect command information over a wide range. The receiving antenna 57 is provided with a detection sensor 62 that detects the direction at the time of reception, and detects in which rotational phase the receiving antenna 57 is in the received command information.

  With the above-described configuration, when an operation command is issued from the wireless operation device 42 to turn the auger 9, the receiving antenna 57 during the rotation receives the operation command, and the detection sensor 62 is based on the received signal. The direction in which the operator is located is specified from the detected value of. If this direction can be specified, the auger 9 is turned in that direction. Here, as the detection sensor 62, a rotary potentiometer capable of measuring the rotational position of the receiving antenna 57 as an angle of 0 ° to 360 ° is used.

  There are the following methods for controlling the auger 9 to stop after turning. Before the auger 9 is swung, the receiving antenna 57 is swung to detect the direction in which the operator is positioned. Therefore, using the detected value, the detected value and the swiveling position detection sensor RY of the auger 9 are detected. The auger 9 may be operated up to a position (direction) where the deviation is eliminated from the detected value of the above.

As another method for performing stop control, the receiving antenna 57 is highly directional, so it is fixed in the same direction as the axial center direction of the auger 9, and the receiving antenna 57 changes the receiving direction as the auger 9 rotates. Configure to change. As a result, the reception intensity increases as the turning angle increases, and the turning operation is stopped in the direction showing the highest reception intensity.
By adopting such a control mode, the operator will not be at a loss in selecting the direction to be turned when the auger 9 is turned.
The control device H is configured such that command information transmitted from the wireless operation device 42 is input via the signal processing device 59, and the control device H receives the command from the wireless operation device 42. In the case of controlling based on the above, when a signal corresponding to the start of the turning operation is continuously input for a set time for starting the operation, the operation of the turning motor M3 is started, and the signal corresponding to the stop of the turning operation is It is configured to stop the operation of the turning motor M3 when continuously input for a set time for stopping the operation set as a time longer than the set time for starting the operation.

Further, when a signal corresponding to the start of the lifting operation is continuously input for a set time for starting the operation, the control device H starts the operation of the lifting hydraulic cylinder 15 and responds to the stop of the lifting operation. When the signal is continuously input for a set time for stopping the operation set as a time longer than the set time for starting the operation, the operation of the lifting hydraulic cylinder 15 is stopped.
Further, when the signal corresponding to the start of the expansion / contraction operation is continuously input for the set time for starting the operation, the operation of the expansion / contraction motor M1 is started, and the signal corresponding to the stop of the expansion / contraction operation is the signal for starting the operation. It is configured to stop the operation of the telescopic motor M1 when it is continuously input for a set time for stopping the operation set as a time longer than the set time.
When a signal corresponding to the start of the switching operation of the discharge clutch 13 is continuously input for a set time for starting the operation, the operation of the clutch motor M2 is started, and the signal corresponding to the stop of the switching operation is It is configured to stop the operation of the clutch motor M2 when continuously inputted for a set time for stopping the operation set as a time longer than the set time for starting the operation.

Hereinafter, the operation of the control device H regarding the turning operation, the raising / lowering operation, the expansion / contraction operation, and the switching operation of the discharge clutch 13 based on a command from the wireless operation device 42 will be described in detail.
That is, the control device H performs state determination processing as shown in FIGS. 10 and 11 for each of the switches provided in the wireless operation device 42 based on the control signal input from the signal processing device 59. Execute to determine the operating state of each switch. Such state determination processing is repeatedly performed every set short time (for example, several msec).

The state determination process will be described. It is determined whether or not a signal having a frequency corresponding to the operation of the corresponding switch is input (step 1), it is determined that the signal is input, and the time measurement is performed. When the counter count value is 40 msec or more and a signal having a frequency corresponding to the operation of the switch is continuously input for 40 msec or more, it is determined that the switch is on. At the same time, the time counter is set so that the count value corresponds to 240 msec (steps 2 to 5).
When it is determined that the signal is not input, if the count value of the counter is not “0”, the counter is counted down. When the count value is smaller than 40 msec, the switch is turned off. Discriminate (steps 6-9). If the count value is “0” as in the initial state, it is determined that the switch is off without counting down.

And the control apparatus H performs the operation | movement corresponding to the determination result based on the determination result of the state determination process of each said switch.
That is, if it is determined that the ascending command switch 43 is on, the auger 9 is lifted by the lifting hydraulic cylinder 15, and if it is determined that the lifting command switch 43 is off, the lifting operation by the lifting hydraulic cylinder 15 is stopped. If it is determined that the lowering command switch 44 is ON, the lowering operation of the auger 9 by the lifting hydraulic cylinder 15 is executed, and if it is determined that the lowering command switch 44 is OFF, the lowering operation by the lifting hydraulic cylinder 15 is stopped.
When it is determined that the right turn command switch 46 is ON, the right turn operation of the auger by the turn motor M3 is executed, and when it is determined that the right turn command switch 46 is OFF, the right turn operation by the turn motor M3 is stopped. If it is determined that the left turn command switch 45 is ON, the left turn operation of the auger by the turn motor M3 is executed, and if it is determined that the left turn command switch 45 is OFF, the left turn operation by the turn motor M3 is stopped.

If it is determined that the extension command switch 51 is ON, the extension operation of the auger 9 by the extension motor M1 is executed, and if it is determined that the extension command switch 51 is OFF, the extension operation by the extension motor M1 is stopped. If it is determined that 52 is ON, the shortening operation of the auger 9 by the extension motor M1 is executed, and if it is determined that the shortening command switch 52 is OFF, the shortening operation by the extension motor M1 is stopped.
When it is determined that the discharge switch 49 is ON, the switching operation to the engaged state of the discharge clutch 13 by the clutch motor M2 is executed. When it is determined that the discharge switch 49 is OFF, the engaged state of the discharge clutch 13 by the clutch motor M2 is executed. When it is determined that the discharge stop switch 50 is on, the clutch motor M2 performs a switching operation to the disengagement state of the discharge clutch 13, and when it is determined that the discharge stop switch 51 is off, the clutch motor The operation of switching the discharge clutch 13 to the disengaged state by M2 is stopped.

  Moreover, by executing the state determination process as described above, for example, when the switch is turned on, the control device H determines that the switch is on when the signal input state continues for 40 msec or longer. When the switch is turned off, the control device H determines that the switch is off when the state in which the signal is not input continues for about 200 msec or longer. Therefore, 40 msec corresponds to the set time t1 for starting operation, and 200 msec corresponds to the set time t2 for stopping operation. Such numerical values of 40 msec and 200 msec are merely examples, and the setting time t1 for starting operation and the setting time t2 for stopping operation are not limited to these values.

  As a result, as shown in FIG. 11, for example, when the right turn command switch 46 is turned on and the turn motor M3 is executing the right turn operation, the radio wave transmitted from the wireless operation device 42 is temporarily transmitted. Even if there is an abnormal portion G in which the input signal is interrupted due to interruption, the control device H does not determine that the switch is off unless it continues for 200 msec or more. Although the command switch 46 is being pressed, there is no possibility that the turning motor M3 stops midway. In FIG. 11, only the right turn command switch 46 is shown, but the operation of the other switches is similarly performed even when the radio wave is temporarily interrupted in the operation of the other switches. Is not determined.

Another structure of the grain tank 70 will be described. As shown in FIGS. 13 (a) and 13 (b), the bottom plate 70b in which a hollow hole communicating with the outside on the threshing portion existence side of the bottom screw conveyor 71 is formed at the bottom 70A of the grain tank 70 is set in a horizontal posture. The enlarged portion 70B is formed. Above the bottom plate 70b, a pair of upper and lower swing opening / closing partition plates 70c and 70d are provided in the capacity expanding portion 70B.
The lower swing opening / closing partition plate 70d is pivotally supported on the bottom plate 70b so as to swing up and down around the front and rear axes, and is urged upward by a spring 72. On the other hand, the upper swing opening / closing partition plate 70c is pivotally supported by the side plate 70e so as to be swingable up and down around the front / rear axis, and the tip end portion is disposed so as to overlap the tip end portion of the lower swing opening / closing partition plate 70d. Further, a rubber plate 70f is attached to the front end portion to prevent leakage from the gap of the overlap margin between the front end portions of the vertically swinging open / close partition plates 70c and 70d.

  The top ends of the vertically swinging open / close partition plates 70c and 70d are arranged in a slanting posture by springs 72 and arranged with an allowance for overlapping, and when the amount of stored grain is small and the load is small, the top and bottom The tip ends of the swing opening / closing partition plates 70c and 70d are maintained in an oblique posture with an overlap margin. When the amount of storage increases and the weight increases, the vertically swinging open / close partition plates 70c and 70d swing downwardly against the biasing force of the spring 72, and the storage capacity is increased.

Another structure of the grain tank 80 will be described. As shown in FIGS. 14 (a) and 14 (b), a central partition plate 80A is erected above the collar portion 82 disposed on the top of the bottom screw conveyor 81, and the threshing portion side storage chamber a is formed by the central partition plate 80A. And a swinging valve body 80B is attached to the ceiling plate 80C above the central partition plate 80A. Near the upper end of the threshing part side storage chamber a, the upper end part of the whipping screw 83 that lifts and conveys the grain discharged from the threshing part 4 is connected, and the grain lifted by the threshing screw 83 is It is configured to be released into the storage chamber a by the rotary blade 83A at the upper end of the whipping screw 83.
The swing valve body 80B has a lower end portion held on the upper end of the central partition plate 80A, and closes the communication opening c formed between the upper end of the central partition plate 80A and the ceiling plate 80C by its own weight. It is energized to the state to do.

  Due to the configuration described above, as shown in FIG. 14 (a), the grains released by the rotary blade 83A are stored in the threshing portion side storage chamber a because they are partitioned by the swing valve body 80B. Is done. When the storage progresses and the grain reaches a position exceeding the upper end of the central partition plate 80A, as shown in FIG. 14 (B), the grain that has been released from the rotary blade 83A or the upper end of the central partition plate 80A is exceeded. The grain pushes open the swing valve body 80B, and storage is performed in the laterally outer side storage chamber b.

  As described above, by providing the partition plate 80A in the center and the swing valve body 80B, the left and right weight balance of the machine body is stored in advance in the threshing portion side storage chamber a while the storage amount is small. It can be set as the structure which does not break down greatly. That is, the threshing portion side storage chamber a is closer to the center of the left and right sides of the fuselage than the lateral outer side storage chamber b, and compared to the case where the threshing portion side storage chamber a is stored prior to the lateral outer side storage chamber b. This contributes to a function that does not greatly disturb the left / right weight balance.

[Another embodiment]
(1) In the above configuration, a radio wave is used to issue an operation command, but here, a light is used. As shown in FIG. 15, instead of the receiving antenna 57, a light receiving sensor 90 in which a plurality of light receiving elements 90 </ b> A are arranged in an arc shape is attached to the base end portion of the auger 9. As a mounting range of the light receiving element 90A, a position exceeding 180 ° is considered appropriate. On the other hand, as the operating device 42, a device provided with a light emitting element 42A such as an LED or an infrared lamp is prepared.
With such a configuration, the position of the operating device 42 is determined from the received element 90 </ b> A, and the auger 9 is turned based on the detection result of the rotational phase of the auger 9.
Thus, what receives light and exhibits a sensor function is considered to be included in the technical scope of the receiving antenna 57 in the present invention.

(2) In the above-described embodiment, the grain discharge auger is configured to be freely extended and retracted by an extension motor as an extension / contraction actuator, and the wireless command means uses a radio signal for the extension operation of the grain discharge auger. However, instead of such a configuration, a configuration that does not include an expansion / contraction actuator may be used.

(3) In the above embodiment, the turning actuator, the telescopic actuator, and the discharging actuator are each configured by an electric motor, and the lifting actuator is configured by a hydraulic cylinder. However, the present invention is not limited to this. For example, a hydraulic motor may be used as the actuator for extension, expansion and contraction, and discharge actuator, or an electric motor or an electric cylinder may be used as the lifting actuator.

Combine side view Overall plan view of combine Vertical side view of the auger tip A longitudinal view of the auger Enlarged side view of the main part showing the operation configuration of turning and raising / lowering of the auger Plan view of the control unit on the aircraft side Perspective view of wireless operation device Block diagram of wireless operation device Control block diagram Flow chart of control operation Timing chart The perspective view which shows the rotation structure of a receiving antenna Longitudinal front view showing another embodiment in which a capacity expansion portion is formed at the bottom of the grain tank Longitudinal front view showing another embodiment having a two-stage storage structure for a grain tank The top view which shows another embodiment which attached the light-receiving sensor to the base end part of the auger

Explanation of symbols

9 Grain unloading device 42 Wireless operation device 43, 44 Elevating operation switch 45, 46 Turning operation switch 49, 50 Switching operation switch 57 Receiving antenna 61 Proximity turning switch H Control means M3 Turning actuator V Airframe

Claims (5)

A grain carrying-out device configured to be turnable with respect to the machine body by a turning actuator;
Manually operated command means for issuing command information for the grain carrying-out device;
Based on the command information, an operation device for a grain carry-out device in a combine equipped with a control means for controlling the operation of the actuator,
The command means is configured as a wireless command means for emitting the command information as a radio signal,
A receiving antenna for receiving the radio signal is provided;
Proximity swivel switch that activates the control means to identify the direction in which the command information is transmitted based on the received information received by the receiving antenna and to turn the grain carry-out device toward the direction The operation device of the grain carrying-out apparatus in the combine provided with the command means. The operation device of the grain carrying-out device in the combine according to claim 1, wherein the command means is equipped with a turning switch for issuing a left turn or a right turn command. In the manually operated command means, in order to perform the lifting and lowering operation of the grain unloading device, and the switching operation between the grain discharging state and the discharging stop state,
The operating device of the grain carrying-out apparatus in the combine of Claim 1 or 2 provided with the raising / lowering operation switch and the grain discharge state changeover switch in the said instruction | indication means. The operating device of the grain carrying-out apparatus in the combine as described in any one of Claims 1-3 with which the said receiving antenna is equipped in the turning center of the said grain conveying apparatus, or its vicinity. The operating device of the grain carrying-out device in the combine according to any one of claims 1 to 4, wherein the receiving antenna has high directivity and can be swiveled in a wide angle range during reception.

Images