JP2010022303A - Combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a combine harvester enabling the operator's intuitive turning operation of a grain-unloading auger by making the operating direction of an auger-turning operating tool functioning to make a turning operation of the grain-unloading auger via an actuator and the turning direction of the grain-unloading auger coincide with each other. <P>SOLUTION: The combine harvester works as follows. By an auger control means 31, the action of an actuator 17 is put under control to make a turning operation of a grain-unloading auger 13 so that the direction of the turning operation of a dial auger-turning operating tool 22 and the direction of the turning operation of the grain-unloading auger 13 coincide with each other. Along with the above control, the action of the actuator 17 is put under control to alter the turning velocity of the grain-unloading auger 13 correspondingly to the turning operation level of the dial auger-turning operating tool 22. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an auger turning operation tool for turning a grain discharge auger via an actuator, and a combine provided with an auger control means for controlling the operation of the actuator.

Conventionally, the grains temporarily stored in the combine grain tank are discharged out of the machine through a grain discharge auger that can be swung and swiveled. A selection volume for positioning the operation section of the turning position of the grain discharge auger over the entire turning range from the storage position, a start switch for operating the grain discharge auger at the position set by the selection volume, and the undulation of the grain discharge auger It is known that it is composed of a manual operation lever that can be independently and independently operated (elevating and lowering) and turning operation, and the selection volume, start switch, and manual operation lever are provided behind the driver's seat (For example, refer to Patent Document 1).
JP 2001-103831 A (page 3-4, FIG. 1 to FIG. 3)

  However, the above-described turning operation of the grain discharge auger is performed at a constant turning speed, and the turning speed cannot be adjusted. For example, the turning operation is temporarily stored in a grain tank. When discharging the grain to a storage tank provided in a transport vehicle such as a truck via the grain discharge auger, an attempt is made to align the grain outlet at the tip of the grain discharge auger with a desired position of the storage tank of the transport vehicle. As a result, overrun due to inertia is likely to occur, and it took time and effort to perform accurate positioning. Also, when turning the grain discharge auger to an arbitrary position by the manual operation lever, there is a range where the operation direction of the manual operation lever and the turning direction of the grain discharge auger do not necessarily coincide, and the operator intuitively operates the manual operation lever. Has the disadvantage that it cannot be operated.

The present invention has been made to solve the above problems, and includes a dial type auger turning operation tool for turning a grain discharge auger via an actuator, and an auger control means for controlling the operation of the actuator. In the combine equipped, the auger control means controls the operation of the actuator so that the turning operation direction of the dial type auger turning operation tool and the turning operation direction of the grain discharge auger coincide with each other, and the dial type auger turning The first feature is that the operation of the actuator is controlled so as to change the turning speed of the grain discharge auger in accordance with the rotation operation amount of the operation tool.
A second feature is that a neutral range of the rotation operation of the dial auger turning operation tool is set at a position displaced from the rotation center of the dial type auger turning operation tool to the right side in a front view.

According to the first aspect of the present invention, there is provided an actuator for turning the grain discharge auger so that the turning operation direction of the dial auger turning operation tool and the turning operation direction of the grain discharge auger coincide with each other by the auger control means. By controlling the operation, if the operator intuitively turns the dial auger turning operation tool in the direction in which the grain discharging auger is to be turned, the grain discharging auger can be easily turned in the desired direction. The operation of the actuator is controlled to change the turning speed of the grain discharge auger according to the turning operation amount of the dial type auger turning operation tool, and is temporarily stored in the grain tank, for example. When roughly aligning the grain discharge auger when discharging the grain to a storage tank provided in a transport vehicle such as a truck via the grain discharge auger Rotating the dial type auger turning operation tool to the high speed range to turn the grain discharge auger at high speed while aligning the grain discharge port at the tip of the grain discharge auger with the desired position of the storage tank of the transport vehicle Rotate the dial type auger swivel operation tool to the low speed range to adjust the swivel speed of the grain discharge auger to a low speed, thereby preventing overrun due to the inertia of the grain discharge auger and achieving accurate and quick alignment Can be done.
And according to invention of Claim 2, the rotation operation neutral range of the said dial type auger turning operation tool was set to the position displaced to the right side by the front view from the turning center of the said dial type auger turning operation tool. Therefore, the turning operation of the dial type auger turning operation tool in the counterclockwise direction with the right wrist as a fulcrum for a right-handed operator, that is, the left turning operation of the grain discharge auger can be performed smoothly and smoothly. Become. Furthermore, when the hoisting operation lever that can be operated by the operator with the left hand is provided on the left side of the dial type auger turning operation tool, the hoisting operation lever and the right hand of the operator who operates the dial type auger turning operation tool do not interfere with each other. By moving the hoisting control lever close to the position, both operating tools can be arranged concisely, and the operator operates the dial type auger turning operating tool with the right hand, while the left hand holds the hoisting operating lever of the grain discharge auger. It becomes possible to operate and workability is improved.

Next, embodiments of the present invention will be described with reference to the drawings. FIG.1 and FIG.2 is the side view and top view of the combine 1, Comprising: The combine 1 threshs the grain from the pre-processing part 2 which cuts the grain cocoon, and the cocoon harvested by this pre-processing part 2. And the threshing part 3 which sorts out this grain, the grain tank 4 which stores temporarily the grain sorted out by this threshing part 3, and the cutter apparatus 5 which cuts the waste after threshing And a left and right crawler traveling device 6 as a traveling unit, and a control unit 9 provided with various operating tools and meters such as a driver's seat 7 and a multi-steering lever 8.

  And the grain temporarily stored in the grain tank 4 is a fixed pipe 11 fixed to the rear lower part of the grain tank 4, and a vertical pipe 12 rotatably connected to the fixed pipe 11, It is fixed to the upper end of the vertical pipe 12 and rotates (turns) integrally with the vertical pipe 12, and also outside the machine via a grain discharge auger 13 provided so that it can be raised and lowered vertically (can be moved up and down). Discharged. That is, at the bottom of the grain tank 4, a first spiral transport body 14 facing in the front-rear direction is disposed, and the grain transported to the fixed pipe 11 by the first spiral transport body 14 is transferred to the above-described vertical pipe. 12 and the grain discharge auger 13 are configured to be discharged to the outside by taking over the second spiral transport body 15 and the third spiral transport body (not shown).

  The grain discharge auger 13 moves up and down (undulates) according to the expansion and contraction of an auger lifting cylinder 16 that is a hydraulic actuator interposed between the grain discharge auger 13 and the vertical pipe 12 and rotates the vertical pipe 12. The auger turning motor 17 which is an electric actuator to be moved is turned according to the forward / reverse drive.

Then, as shown in FIG. 3, based on the operator MM boarded on the control unit 9 of the combine 1, the left turning operation from the storage position A of the grain discharge auger 13 is
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The right turning operation from the storage position A is mechanically restricted at the right limit position R while being mechanically restricted at the left limit position L.

  Further, between the left limit position L and the right limit position M, that is, in the turning region θ of the grain discharge auger 13, the storage position A for storing the grain discharge auger 13 and the driver seat that is directly above the driver seat 7. Standards such as position B, rightward discharge position C for extending the grain discharge auger 13 in the right-right direction with respect to the traveling direction of the machine, and backward discharge position D for extending the grain discharge auger 13 to the rear of the machine The position is set, and it is avoided that the grain discharge auger 13 contacts the grain tank 4 or the operator M between the storage position A and the right direction discharge position C of the grain discharge auger 13 described above. Therefore, the downward prohibition range of the grain discharge auger 13 is set.

  As shown in FIG. 4, an auger operation panel 21 for turning and raising / lowering the grain discharge auger 13 is provided on the rear side of the driver's seat 7. The auger operation panel 21 includes a dial type auger turning operation tool 22 for manually turning the grain discharge auger 13 in a desired direction, and a undulation for manually raising and lowering (elevating) the grain discharge auger 13 to an arbitrary position. (Elevation) Operation lever 23, automatic storage switch 24 for automatically turning and returning the grain discharge auger 13 from the discharge position to the predetermined storage position A, and a turning position setting dial for setting the automatic turning stop position of the grain discharge auger 13 25, an automatic turning switch 26 for automatically turning to the automatic turning stop position of the grain discharge auger 13 set by the turning position setting dial 25, an emergency stop switch 27, and transferring the grains in the grain tank 4 to a truck such as a truck. A grain discharge switch 28 for discharging to the storage tank is provided.

  Further, the combine 1 is configured using a microcomputer (including a CPU, a ROM, a RAM, and the like) as shown in FIG. 5 as an auger control means for controlling the raising / lowering (undulation) operation and turning operation of the grain discharge auger 13. A control unit 31 is provided. On the input side of the control unit 31, an upper limit switch 32 for detecting the rising limit position of the grain discharge auger 13 and a rotation operation position of the dial auger turning operation tool 22, that is, the dial type auger turning operation tool 22 are shown in FIG. As shown in FIG. 9, the turning operation position detection for detecting whether the vehicle is in the neutral range N, the left turning low speed range LL, the left turning high speed range LH, the right turning low speed range RL, or the right turning high speed range RH. Potentiometer 33, ascending switch 34 for detecting the raising / lowering operation of the hoisting (elevating / lowering) operating lever 23, the lowering switch 35 for detecting the lowering operation of the hoisting / lowering (elevating / lowering) operating lever 23, and the auger turning for detecting the turning position of the grain discharge auger 13 Position detection sensor (potentiometer) 36, automatic storage switch 24, turning position setting dial 25, automatic turning switch 26, emergency stop switch 27, grain discharge A switch 28, a left limit switch 37 for detecting a left limit position L in the left turning operation of the grain discharge auger 13, a right limit switch 38 for detecting a right limit position R in the right turning operation of the grain discharge auger 13, and the like. While connected via a predetermined input interface circuit, on the output side of the control unit 31, in addition to the auger turning motor 17 described above, an electromagnetic brake 41 for applying brake braking to the output shaft of the auger turning motor 17, an auger lifting / lowering The ascending solenoid valve 42a and the descending solenoid valve 42b of the cylinder electromagnetic valve 42, the alarm buzzer 43 and the like are connected via a predetermined output interface circuit.

  Then, the control unit 31 controls the turning operation of the grain discharge auger 13 according to the turning operation position of the dial type auger turning operation tool 22, and the grain according to the operation of the undulation (lifting / lowering) operation lever 23. Lift control program for controlling the lifting operation of the grain discharge auger 13, operation regulation for avoiding the grain discharge auger 13 coming into contact with the grain tank 4 and the operator M, that is, the grain discharge auger into the turning regulation region 13 includes an auger turning (intrusion) prohibiting control program for prohibiting the intrusion of 13 and an auger turning restriction releasing control program for releasing the auger turning prohibiting control. The auger turning control as the gist of the present invention will be described below.

  FIG. 6 is a flowchart showing the auger turning control. First, in step S <b> 1, the turning operation position of the dial type auger turning operation tool 22 provided close to the base of the dial type auger turning operation tool 22. This is confirmed by the detection potentiometer 33. If the dial type auger turning operation tool 22 is in the rotation operation neutral range N in step S2, the process proceeds to step S3 to stop the auger turning motor 17, while the dial type auger turning operation tool 22 is turned in the rotation operation neutral range. If it is other than N, the process proceeds to step S4 to step S7.

  That is, in steps S4 to S7, as shown in FIG. 7, the dial type auger turning operation tool 22 has a left turning low speed range LL, a left turning high speed range LH, a right turning low speed range RL, and a right turning high speed range RH. In these steps S4 to S7, the forward / reverse rotation and low-speed rotation of the auger turning motor 17 are performed so as to correspond to the above-described four operation ranges LL, LH, RL, RH. A series of auger turning control such as proceeding to step S8 and outputting to the auger turning motor 17 on the basis of each setting condition combined with. The left turn low speed range LL and the left turn high speed range LH are set to LL <LH, and the right turn low speed range RL and the right turn high speed range RH are also set to RL <RH. The turning operation of the dial type auger turning operation tool 22 from the turning operation neutral range N to the left and right turning high speed ranges LH and RH can be quickly performed.

  More specifically, for example, when it is desired to turn the grain discharge auger 13 at the storage position A rightward to the vicinity of the rightward discharge position C as shown by an arrow F in FIG. The tool 22 is rotated to the right from the rotation operation neutral range N to the right turning high speed range RH, and the grain discharge auger 13 is turned at high speed to perform rough positioning. Thereafter, the dial-type auger turning operation tool 22 is turned to the right turning low speed range RL or the left turning low speed range LL to turn the grain discharging auger at a low speed. Alignment can be performed.

  At this time, as shown in FIG. 7, the dial type auger turning operation tool 22 is located at a position displaced from the turning center P to the right side when viewed from the front. Since N is set, the turning operation of the dial-type auger turning operation tool 22 in the counterclockwise direction with the right wrist as a fulcrum, which is not good for the right-handed operator M, that is, the left turning of the grain discharge auger 13 The operation can be performed smoothly and smoothly. The dial type auger turning operation tool 22 is provided with a return spring (not shown), and any one of the four operation ranges LL, LH, RL, and RH of the dial type auger turning operation tool 22 is selected by the operator M. When the hand is released after the dial type auger turning operation tool 22 is turned to such an operation range, the dial type auger turning operation tool 22 automatically returns to the turning operation neutral range N from that position. Reference numeral 22 a in the figure is an operation index of the dial type auger turning operation tool 22.

  Further, as shown in FIG. 4, when the raising / lowering operation lever 23 of the grain discharge auger 13 that can be operated by the operator M with the left hand is provided on the left side of the dial type auger turning operation tool 22, By bringing the hoisting operation lever 13 close to a position where the operation lever 23 and the right hand of the operator M who operates the dial type auger turning operation tool 22 do not interfere with each other, both the operation tools 22 and 23 can be simply arranged. While the operator M operates the dial type auger turning operation tool 22 with the right hand, the operator can operate the raising / lowering operation lever 23 of the grain discharge auger with the left hand, thereby improving workability.

  FIG. 8 is a flowchart showing another example of the auger turning control. In this flowchart, a dial type auger turning operation tool 22 without a return spring is adopted. When the operator M rotates to the desired position and releases his hand, the dial type auger turning operation tool 22 is held at the position where the turning operation is performed without automatically returning to the neutral range N of the turning operation. It has become. In this flowchart, first, in step S1, a dial push button switch (S / W) (not shown) formed integrally with the dial type auger turning operation tool 22 is turned on or off. If the dial push button switch is in the on state, the process proceeds to step S2. If the dial push button switch is in the off state, the process proceeds to step S3 and the auger turning motor 17 is stopped.

  In step S <b> 2, the operation position of the dial type auger turning operation tool 22 is confirmed by a turning operation position detection potentiometer 33 provided close to the base of the dial type auger turning operation tool 22. If the dial type auger turning operation tool 22 is in the rotation operation neutral range N in step S2, the process proceeds to step S4 to stop the auger turning motor 17, while the dial type auger turning operation tool 22 is turned in the rotation operation neutral range. If it is other than N, the process proceeds to step S5 to step S8.

  That is, in steps S5 to S8, as shown in FIG. 7, the dial type auger turning operation tool 22 has a left turn low speed range LL, a left turn high speed range LH, a right turn low speed range RL, and a right turn high speed range RH. In these step S4 to step S7, each setting condition that combines forward / reverse rotation and low-speed rotation of the auger turning motor 17 so as to correspond to the above-described four operation ranges. Based on the above, a series of auger turning control such as proceeding to step S9 and outputting to the auger turning motor 17 is executed. In this embodiment, among the four operation ranges LL, LH, RL, and RH of the dial type auger turning operation tool 22 described above, the operator M operates the dial type auger turning operation tool 22 in any one of the operation ranges. Thereafter, a desired auger turning control is performed by turning on and operating a dial push button switch formed integrally with the dial type auger turning operation tool 22.

  According to the embodiment of the auger turning control described above, the turning operation direction of the dial type auger turning operation tool 22 and the turning operation direction of the grain discharge auger 13 are made to coincide with each other by the control unit 31 which is an auger control means. By controlling the operation of an actuator (auger turning motor) 17 that pivots the grain discharge auger 13, the operator M intuitively sets the dial type auger turning operation tool 22 in the direction in which the operator wants to turn the grain discharge auger 13. If the turning operation is performed, the grain discharge auger 13 can be easily turned in a desired direction, and the turning speed of the grain discharge auger 13 is set according to the turning operation amount of the dial type auger turning operation tool 22. Since the operation of the actuator 17 is controlled to be changed, for example, the grain temporarily stored in the grain tank 4 is passed through the grain discharge auger 13. When roughly aligning the grain discharge auger 13 for discharging to a storage tank provided in a transport vehicle such as a truck, the dial type auger turning operation tool 22 is set to a high speed range (left and right turning high speed ranges LH, RH). When the grain discharge auger 13 is swung at a high speed and the grain discharge port 13a at the tip of the grain discharge auger 13 is aligned with the desired position of the storage tank of the transport vehicle, the dial auger swivel is performed. By rotating the operation tool 22 in the low speed range (left and right turning low speed ranges LL, RL) and adjusting the turning speed of the grain discharging auger 13 to a low speed, overrun due to the inertia of the grain discharging auger 13 is prevented. As a result, accurate and quick alignment can be performed.

  Then, as shown in FIG. 7, the neutral range N of the turning operation of the dial auger turning operation tool 22 is set at a position displaced from the turning center P of the dial auger turning operation tool 22 to the right in front view. Therefore, the turning operation of the dial type auger turning operation tool 22 in the counterclockwise direction around the right wrist as a fulcrum for the right-handed operator M, that is, the left turning operation of the grain discharge auger 13 is smoothly performed. You can do it. Further, when the raising / lowering operation lever 23 that can be operated by the operator M with the left hand is provided on the left side of the dial type auger turning operation tool 22, the operator operating the raising / lowering operation lever 23 and the dial type auger turning operation tool 22 is provided. By bringing the hoisting operation lever 23 close to a position where it does not interfere with the right hand, both the operating tools 22 and 23 can be arranged concisely, while the operator M operates the dial type auger turning operating tool 22 with the right hand, The undulation operation lever 23 of the grain discharge auger 13 can be operated with the left hand, and workability is improved.

The side view of a combine. The top view of a combine. The top view which shows the turning range of a grain discharge auger. The perspective view of an auger operation panel. The block diagram of a control part. The flowchart which shows auger turning control. The top view which shows the operation form of a dial type auger turning operation tool. The flowchart which shows the other example of auger turning control.

Explanation of symbols

13 Grain discharging auger 17 Actuator 22 Dial type auger turning operation tool 31 Auger control means P Center of rotation N Range of neutral operation

Claims (2)

  In a combine provided with a dial type auger turning operation tool (22) for turning the grain discharge auger (13) via an actuator (17) and an auger control means (31) for controlling the operation of the actuator (17). The auger control means (31) controls the operation of the actuator (17) so that the turning operation direction of the dial type auger turning operation tool (22) matches the turning operation direction of the grain discharge auger (13). And the operation of the actuator (17) is controlled to change the turning speed of the grain discharge auger (13) according to the turning operation amount of the dial type auger turning operation tool (22). .   The neutral range (N) of the rotational operation of the dial type auger turning operation tool (22) is set at a position displaced to the right in front view from the turning center (P) of the dial type auger turning operation tool (22). The combine according to claim 1.

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