JP2017147976A - Combine-harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a combine-harvester capable of reducing a transverse working load of an operator for transversely working a levee of a large undulation.SOLUTION: A blade device (5C) is disposed at the forward end portion of the lower wall of an auger device (5B) of a mowing pretreatment device (5), and a grounding body (15) for detecting the ground height of the moving pretreatment device (5) is disposed at the posterior of the blade device (5c). A lifting cylinder (11) connected to the moving pretreatment cylinder device (5) is driven in accordance with the detection value of the grounding body (15), thereby to perform an elevation control to keep the ground height of the moving pretreatment cylinder device (5). An elevation control is stopped in the case where a number (N), at which a lifting lever (12) of the maneuver lever (8) is operated to move the moving pretreatment cylinder device (5) manually in vertical direction, becomes more than a set number (N1).SELECTED DRAWING: Figure 6

Description

  The present invention relates to a combine equipped with a pre-harvest processing device for harvesting cereal straw in the field on the front side of a threshing device.

  Conventionally, in order to prevent the cutting blade device of the pre-cutting device from penetrating into a field paddle or the like, a pair of left and right grounding height sensors are provided on the rear side of the cutting blade device, and based on the input value of the grounding height sensor. A configuration has been proposed in which the cutting blade device is positioned at a predetermined height from the farm scene. (Patent Documents 1 and 2)

JP2012-30A Japanese Patent Laying-Open No. 2005-211011

However, in the conventional combine, since the ground contact height sensor is provided on the rear side of the cutting blade device, it is separated by a predetermined distance. When shifting to a vertical mowing operation that works along the heel, if the distance between the cutting blade device and the ground height sensor differs from the field scene, for example, the cutting blade device is located on the heel and the ground height sensor Is located on the groove between the ridges, the distance between the ground contact height sensor and the field scene is large, so the cutting blade processing unit is moved downward to bring the cutting blade unit closer to the field scene. Therefore, it is necessary for the operator to operate the elevating lever provided on the cockpit to move the pre-cutting processing device upward to prevent the cutting blade device from being pushed into the heel, and the operator's work load is heavy. The problem was pointed out.
Then, the main subject of this invention is to propose the structure which reduces a driver | operator's work burden.

The present invention that has solved the above problems is as follows.
The invention which concerns on Claim 1 arrange | positions the threshing apparatus (4) on the left side of a body frame (2), arrange | positions the pre-cutting processing apparatus (5) of this threshing apparatus (4), and this pre-cutting processing apparatus (5 ) In which the control unit (8) is arranged on the right side and the traveling device (3) is arranged below the fuselage frame (2).
A cutting blade device (5C) is provided at the front end of the lower wall of the auger device (5B) of the cutting pretreatment device (5), and the cutting pretreatment device (5) is provided behind the cutting blade device (5C). A grounding body (15) for detecting the ground height is provided, and a lifting cylinder (11) connected to the pre-cutting processing device (5) is driven according to a detection value of the grounding body (15) to Elevation control is performed to maintain the ground level of the processing device (5) constant, and the pre-cutting processing device (5) is manually moved up and down by operating the elevating lever (12) of the control unit (8). When the number of times (N) exceeds the set number (N1), the lifting control is stopped.

  In the invention according to claim 2, the number (N) of manually moving the pre-cutting device (5) in the vertical direction by operating the lifting lever (12) of the control unit (8) is the set number of times (N1). It is a combine of Claim 1 which stops the said raising / lowering control, when it increases more and the moving speed (V) of the said traveling apparatus (3) becomes slower than a setting moving speed (V1).

  The invention according to claim 3 resumes the lifting control when the moving distance (L) by the traveling device (3) becomes longer than the set moving distance (L1) in a state where the lifting control is stopped. The combine according to claim 1 or 2.

  According to a fourth aspect of the present invention, in the state where the elevation control is stopped, the elevation control is resumed when the stop time (t) when the elevation control is stopped becomes longer than the set stop time (t1). The combine according to claim 1 or 2.

  The invention according to claim 5 is the invention according to any one of claims 1 to 4, wherein the grounding body (15) is formed of a left grounding body (15L) and a right grounding body (15R) which are divided into at least two in the left-right direction. It is a combine.

  According to the first aspect of the present invention, the cutting blade device (5C) is provided at the front end of the lower wall of the auger device (5B) of the cutting pretreatment device (5), and the cutting blade device (5C) is cut behind the cutting blade device (5C). A grounding body (15) for detecting the ground height of the pretreatment device (5) is provided, and the lifting cylinder (11) connected to the cutting pretreatment device (5) is driven according to the detected value of the grounding body (15). Then, elevating control is performed to maintain the ground height of the pre-cutting processing device (5) constant, and the pre-cutting processing device (5) is manually moved up and down by operating the elevating lever (12) of the control unit (8). When the number of movements in the direction (N) is greater than the set number of times (N1), the lifting control is stopped. Thus, it is possible to reduce the operator's work burden at the time of transition between vertical mowing work.

  According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, the pre-cutting device (5) is manually moved up and down by operating the elevating lever (12) of the control section (8). The lift control is stopped when the number of times of movement (N) is greater than the set number of times (N1) and the moving speed (V) of the traveling device (3) is slower than the set moving speed (V1). Therefore, when the traveling device (3) whose undulations are not easily affected by the kite is moved at a high speed, the lifting / lowering control is maintained, so that the operator's work load is further reduced.

  According to the invention described in claim 3, in addition to the effect of the invention described in claim 1 or 2, the moving distance (L) by the traveling device (3) is set to the set moving distance (L1) in the state where the elevation control is stopped. ), The lifting / lowering control is resumed, so that it is not necessary for the operator to input a switch for starting the lifting / lowering control again, and the operator's work load is further reduced. The cutting blade device (5C) can be prevented from being pushed into the ridge due to forgetting to input.

  According to the invention described in claim 4, in addition to the effect of the invention described in claim 1 or 2, the stop time (t) when the lift control is stopped in the state where the lift control is stopped is the set stop time (t1). If it becomes longer than that, the lift control is resumed, so there is no need for the operator to input the switch for starting the lift control again, the operator's work load is further reduced, and the operator's switch is input. It is possible to prevent the cutting blade device (5C) from being pushed into the ridge due to forgetting.

  According to the invention described in claim 5, in addition to the effect of the invention described in any one of claims 1-4, the left grounding body (15L) obtained by dividing the grounding body (15) into at least two in the left-right direction; Since it is formed by the right grounding body (15R), it is possible to reduce the horizontal inclination of the body frame (2) according to the difference between the detection value of the left grounding body (15L) and the detection value of the right grounding body (15R). it can.

It is a front view of a general purpose combine. It is a left view of a general purpose combine. It is a top view of a general purpose combine. It is a left view of the general purpose combine which raised the cutting pretreatment apparatus. It is a connection diagram of a control device. It is explanatory drawing of the method of stopping the raising / lowering control of a cutting pre-processing apparatus. It is explanatory drawing of the method of restarting the raising / lowering control of a cutting pre-processing apparatus.

  Embodiments of the present invention will be described with reference to the drawings. For ease of understanding, as viewed from the pilot, the front side is the front side, the rear side is the rear side, the right hand side is the right side, and the left hand side is the left side. It is not limited.

  As shown in FIGS. 1 to 3, the general-purpose combiner is provided with a traveling device 3 composed of a pair of left and right crawlers traveling on the soil surface below the body frame 2, and threshing is performed on the upper side of the body frame 2. A device 4 is provided, and a pre-cutting processing device 5 for harvesting cereal grains in the field is provided on the front side of the threshing device 4.

  The grain that has been threshed and selected by the threshing device 4 is stored in a Glen tank 6 provided on the right side of the threshing device 4, and the stored grain is a discharge cylinder composed of a cereal discharge cylinder and a discharge discharge cylinder. 7 to the outside. In addition, on the front side of the Glen tank 6, a control unit 8 on which a driver gets is provided.

<Cutting pretreatment device>
As shown in FIGS. 1 to 3, the pre-cutting processing device 5 includes a feeder house 5A, an auger device 5B, a cutting blade device 5C, and a scraping device 5D. A vertical cutting blade device extending substantially in the vertical direction may be provided on the upper side of the left wall that is the uncut side.

  The feeder house 5 </ b> A is a device that conveys cereal grains such as rice, wheat, soybeans, and buckwheat collected by the auger device 5 </ b> B to the threshing device 4, and is provided between the auger device 5 </ b> B and the threshing device 4. Further, as shown in FIG. 4, the front portion of the feeder house 5A is lifted up and down about a support shaft 10 that rotatably supports the rear portion of the feeder house 5A by driving a lift cylinder 11 for the feeder house. can do.

  The auger device 5B is a device that gathers the cereals scraped by the scraping device 5D to the front side of the feeding port opened in the rear wall of the auger device 5B and takes over to the feeder house 5A. The front side of the feeder house 5A And is formed to have substantially the same width as the width of the airframe in the left-right direction.

  The cutting blade device 5C is a device that cuts the stock of the culm that has been raked by the rake device 5D, and is provided at the front end of the lower wall of the auger device 5B, and gently rearward from the front side to the rear side in a side view. It is formed with an upward slope.

  On the rear side of the cutting blade device 5C, there is provided a grounding body 15 that moves along the uneven state of the field divided into at least two in the left-right direction. The front part of the grounding body 15 is rotatably supported by a support shaft 14 extending in the left-right direction. For example, when the grounding body 15 passes through a fence in the field, the rear part of the grounding body 15 It rotates upward about the front part of the grounding body 15 supported by the shaft 14. On the other hand, when the grounding body 15 passes through the groove between the ridges in the field, the rear portion of the grounding body 15 rotates downward about the front portion of the grounding body 15 supported by the support shaft 14. . The rotation angle of the grounding body 15 is measured by an angle measuring sensor 16.

  The control device 30 to be described later drives the elevating cylinder 11 based on the measurement value of the sensor 16 to control the cutting blade device 5C and the field so as to have a predetermined interval. This reduces the cutting blade device 5C from thrusting into the field, in particular, the field paddle, during the horizontal cutting process in which the cutting process is performed while traversing the reed and in the vertical cutting process in which the cutting process is performed while moving along the reed. can do.

  The scraping device 5D is a device for scraping a fallen cereal, a low cereal such as soybeans or buckwheat, or a high cereal such as oil rape or rape, etc. into the auger device 5B, and is provided on the upper side of the auger device 5B. The auger device 5B is formed to have substantially the same width as that in the left-right direction.

<Control device>
Next, a method for connecting the control device 30 will be described. As shown in FIG. 5, on the input side of the control device 30 provided in the control unit 8, a left sensor 16L for measuring the rotation angle of the left grounding body 15L provided on the left side on the rear side of the cutting blade device 5C, Operation of the right sensor 16R for measuring the rotation angle of the right grounding body 15R provided on the right side on the rear side of the cutting blade device 5C and the operation of the lifting lever 12 for manually moving the cutting pretreatment device 5 provided on the control unit 8 up and down. A sensor 17 for measuring the number of times, a sensor 18 for measuring the speed of the traveling device 2, and a switch 19 for starting automatic control of the lifting operation of the pre-cutting processing device 5 are connected via a predetermined input interface circuit.

  On the other hand, on the output side of the control device 50, a hydraulic valve that drives a rolling cylinder that adjusts the tilt angle in the left-right direction of the body frame 2 provided between the body frame 2 and the traveling device 3 to level the body frame 2. The circuit part 21 and the circuit part of the hydraulic valve 22 that drives the elevating cylinder 11 that elevates and lowers the feeder house 5A of the pre-cutting processing device 5 are connected via a predetermined output interface circuit.

<Method to stop lifting control>
When the switch 19 is input by the operator, the horizontal posture of the body frame 2 automatically by the control device 30 and the interval between the cutting blade device 5C of the pre-cutting processing device 5 and the field are within a predetermined range. It is controlled to become. However, since the grounding body 15 is provided on the rear side of the cutting blade device 5C of the pre-cutting processing device 5 at a predetermined interval, the control device 30 controls the raising / lowering of the cutting blade device 5C of the pre-cutting processing device 5. In order to avoid this, the operator operates the lifting lever 12 to push the cutting blade device 5C into the field. Is preventing.

  Therefore, a method for reducing the operator's work burden by interrupting the lifting control of the pre-cutting processing device 5 by the control device 30 will be described.

  As shown in FIG. 6, in step S <b> 1, the control device 50 determines whether or not the switch 19 for starting up / down control of the pre-cutting processing device 5 is input. If it is determined that the switch 19 has been input, the process proceeds to step 2. When it is determined that the switch 19 has not been input, the elevation control is not started.

  In step 2, the control device 30 sets the number of times N input from the sensor 17 by the operator operating the lifting lever 12 to an initial value (N = 0 times), and sets the time T of the internal timer of the control device 30. Set to the initial value (T = 0 seconds) and go to step 3.

  In step 3, the control device 30 determines whether or not there is an input from the sensor 17. When the operator operates the lifting lever 12, there is an input from the sensor 17 to the control device 30, and when the operator does not operate the lifting lever 12, the sensor 17 controls the control device. There is no input to 30.

  In step 3, when the control device 30 determines that there is an input from the sensor 17, the process proceeds to step 4 to add 1 to the number N, and then proceeds to step 5 to determine whether the number N exceeds the set number N1. Judge whether or not. If the number N is less than or equal to the set number N1, the process proceeds to step 6. On the other hand, if the number N exceeds the set number N1, the process proceeds to step 8. The set number N1 can be set to an arbitrary number according to the work environment.

  On the other hand, if it is determined in step 3 that the input from the sensor 17 has not been made, the process proceeds to step S6, 1 is added to the time T, and then the process proceeds to step 7, where the time T exceeds the set time T1. If the time T is less than or equal to the set time T1, the process proceeds to step 3. On the other hand, if the time T exceeds the set time T1, the process proceeds to step 2. The set time T1 can be set to an arbitrary time according to the work environment.

In step 8, the control device 30 determines whether or not the moving speed V of the sensor 18 that measures the speed of the traveling device 2 is equal to or lower than the set moving speed V1. When it is determined that the movement speed V of the sensor 18 is equal to or less than the set movement speed V1, the elevation control is stopped. On the other hand, if it is determined that the moving speed V of the sensor 18 is higher than the set moving speed V1, the process proceeds to step 3. Since step 8 is an arbitrary step, step 8 can be deleted, and the set moving speed V1 can be set to an arbitrary speed according to the work environment.
Thereby, it is possible to reduce the burden of the operator's operation work due to the conflict between the raising / lowering operation of the cutting pretreatment device 5 by the operator's lifting lever 12 and the raising / lowering control of the cutting pretreatment device 5 by the control device 30. .

<How to restart lifting control>
Next, a method for restarting the suspended elevation control will be described. As shown in FIG. 7, in step 11, the control device 50 determines whether or not the switch 19 for starting up / down control is input. If it is determined that the switch 19 has been input, the process proceeds to step 12. If it is determined that the switch 19 has not been input, the lift control is kept stopped.

  In step 12, the control device 30 sets the stop time t of the second internal timer of the control device 30 to an initial value (t = 0 seconds) and multiplies the stop time t by the moving speed V of the sensor 18. Is set to an initial value (L = 0 km), and the process proceeds to step 13.

  In step 13, after adding 1 to the stop time t, the control device 30 proceeds to step 14 and determines whether or not the stop time t exceeds the set stop time t1, and the stop time t is equal to or less than the set stop time t1. If it is determined, the process proceeds to step 15. On the other hand, if the stop time t exceeds the set stop time t1, the process proceeds to step 17 to restart the lift control. The set stop time t1 can be set to an arbitrary time according to the work environment.

  In step 15, the control device 30 determines whether or not the moving distance L exceeds the set moving distance L1, and if it is determined that the moving distance L is equal to or less than the set moving distance L1, the control device 30 proceeds to step 16 and maintains the lifting control stop. To do. On the other hand, when the moving distance L exceeds the set moving distance L1, the process proceeds to step 17 to restart the lifting control. As a result, it is possible to reduce the operation burden on the operator in the field where the unevenness of the kite is gentle. The moving distance L can be calculated based on, for example, a pulse output by a sensor that detects the rotation of the drive shaft of the traveling device 3 and the number of pulse outputs and the traveling distance of the aircraft per pulse measured in advance. it can.

  INDUSTRIAL APPLICABILITY The present invention can be used for interrupting and restarting lifting control of a general-purpose combine harvesting pretreatment device.

2 Machine frame 3 Traveling device 4 Threshing device 5 Cutting pretreatment device 5B Auger device 5C Cutting blade device 8 Control unit 11 Lifting cylinder 12 Lifting lever 15 Grounding body 15L Left grounding body 15R Right grounding body L Traveling distance L1 Set travel distance N times N1 Number of times set t Stop time t1 Set stop time V Travel speed V1 Set travel speed

Claims (5)

A threshing device (4) is arranged on the left side of the machine body frame (2), a pre-cutting processing device (5) of the threshing device (4) is arranged, and a control unit (8 is placed on the right side of the pre-cutting processing device (5). ), And a combine in which the traveling device (3) is disposed below the fuselage frame (2),
A cutting blade device (5C) is provided at the front end of the lower wall of the auger device (5B) of the cutting pretreatment device (5), and the cutting pretreatment device (5) is provided behind the cutting blade device (5C). A grounding body (15) for detecting the ground height is provided,
The lifting cylinder (11) connected to the pre-cutting processing device (5) is driven according to the detected value of the grounding body (15) to maintain the ground height of the pre-cutting processing device (5) constant. Control up and down,
When the number (N) of manually moving the pre-cutting processing device (5) in the vertical direction by operating the elevating lever (12) of the control unit (8) exceeds the set number (N1), The combine characterized by stopping the lifting control.   The number (N) of manually moving the pre-cutting processing device (5) in the vertical direction by operating the elevating lever (12) of the control unit (8) is greater than the set number (N1), and The combine of Claim 1 which stops the said raising / lowering control, when the moving speed (V) of a traveling apparatus (3) becomes slower than set moving speed (V1).   The said raising / lowering control is restarted when the moving distance (L) by the said traveling apparatus (3) becomes longer than the setting moving distance (L1) in the state where the said raising / lowering control was stopped. Combine.   The combine according to claim 1 or 2, wherein the lift control is resumed when a stop time (t) in which the lift control is stopped becomes longer than a set stop time (t1) while the lift control is stopped. .   The combine of any one of Claims 1-4 formed with the left grounding body (15L) and the right grounding body (15R) which divided the said grounding body (15) into the left-right direction at least.

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