JP2010075125A - Ascent/descent controller for mower of combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce the problem of causing a mower to accidentally fall upon inspecting or repairing the mower and to improve the safety of the work. <P>SOLUTION: The front side of a traveling undercarriage (2) is provided with a mower (4) that transfers standing grain culms backward and upward relative to the mowing direction, and a hydraulic cylinder (7) that ascends/descends the mower (4), wherein the ascending/descending speed of the mower (4) is made variable by controlling the supply of oil to the hydraulic cylinder (7) using an electromagnetic proportional valve (8) and the descent of the mower (4) is suspended by a mowing lock mechanism (9). A controller (13) that prohibits a descending output to the mower upon enables the mower to descend for a first time after releasing the mowing lock mechanism (9) and permits a descending output to the mower (4) after confirming that a main shift lever (12) has been put into the stop position or the mower (4) has been caused to ascend, is included in an ascent/descent controller of the mower. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a harvesting lifting control device for a combine.

In the harvesting operation of the napkin cereal with the combine, the cereal is harvested by a reaping device provided at the front part of the traveling chassis of the combine, and the reaped cereal is transferred to the rear upper part and threshed.
The cutting height of the cutting device is maintained at a desired cutting height (H1) that is set by adjusting the absolute ground height of the cutting device with a cutting height setting device, as disclosed in Japanese Patent Application Laid-Open No. 59-1118013. Thus, it is the structure which controls a cutting part raising / lowering apparatus based on the detection result of the ground height detection sensor provided in this cutting apparatus, and is the 2nd setting set higher than this cutting height (H1) When descending control is performed from a higher position than the height (H2), during a predetermined time elapse from the time when the ground height detection sensor detects the second set height (H2) or during a predetermined distance advance A cutting height control mechanism configured to prevent the lowering operation from being restrained.

Moreover, when performing work such as inspection and repair of the reaping device, an operator needs to be located near the lower portion of the reaping device. At this time, as a risk avoidance process, a cutting lock device is provided so that the cutting device is locked. However, when this operation is canceled by mistake, the cutting device is lowered (artificial). There is a risk of mistakes.
JP 59-1118013

  When performing work such as inspection and repair of the reaping device, an operator needs to be located near the lower portion of the reaping device. At this time, as a risk avoidance process, a cutting lock device is provided so that the cutting device is locked. However, when this operation is canceled by mistake, the cutting device is lowered (artificial). It is an attempt to solve this.

In order to solve the above problems, the present invention takes the following technical means.
That is, a cutting device (4) that cuts napped grains and transfers them to the upper rear side is provided on the front side of the traveling chassis (2), and a hydraulic cylinder device (7) that raises and lowers the cutting device (4) is provided. By controlling the oil feed to (7) with the electromagnetic proportional valve (8), the lifting speed of the cutting device (4) can be changed, and the cutting device (4) is lowered by the cutting lock mechanism (9). After the unlocking of the cutting lock mechanism (9), the lowering output is prohibited during the first cutting lowering operation, and the main transmission lever (12) is operated to the stop position or the cutting device (4) is raised. The present invention is a combine harvesting lift control device provided with a control device (13) that permits a descending output of the harvesting device (4) after detecting the operation.

  The harvesting operation of the napped grain mash in the field with the combine is performed by cutting the cereal with the harvesting device (4) provided on the front side of the traveling chassis (2) of the combine, and the harvested cereal with the harvesting device (4). Transferred and threshing processed.

  As described above, conventionally, the reaping device (4) is operated in the locked state when the reaping device (4) is inspected or repaired. For this reason, there has been a risk that the reaping device (4) may be lowered by mistake. However, according to the present invention, it is possible to avoid a danger due to an erroneous operation and to improve safety.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
A traveling device 3 is provided below the traveling chassis 2 of the combine 1, and a cutting device 4 is provided at the front part of the traveling chassis 2 for cutting the nail flax and transferring it to the rear upper part. On one side, a threshing device 5 that takes over the harvested cereal from the reaping device 4 and threshing, and on the right side of the threshing device 5, the threshing grain is supplied from the threshing device 5 and temporarily stored. A grain storage tank 6 is placed and provided.

  The cutting device 4 provided in the front part of the traveling chassis 2 is provided with a hydraulic cylinder device 7 that controls the vertical movement on the upper front side of the traveling chassis 2, and the output to the hydraulic cylinder device 7 is: In this configuration, the operation is controlled by an electromagnetic proportional valve 8 built in the operation device 11. Thus, the lowering of the reaping device 4 is stopped by the reaping lock mechanism 9 having a function capable of changing the ascending / descending speed and provided on the upper portion of the support rod 29a. In this configuration, after the cutting lock mechanism 9 is released, at the first cutting down operation, the cutting down output of the cutting device 4 is not performed, and the main transmission lever 12 provided on the operating device 11 is moved to the “stop” position. Or a control device 13 for controlling the output of the cutting and lowering of the cutting device 4 after the detection that the operation of the cutting device 4 has been lifted. It is a configuration.

  As shown in FIG. 1, a traveling device 3 in which a pair of left and right traveling crawlers 3 a traveling on the soil surface is stretched is disposed below the traveling chassis 2 of the combine 1. A threshing device 5 is placed. The napped grains are harvested by the harvesting device 4 at the front part of the traveling chassis 2 and transferred to the rear upper part, and the threshing is carried out while being sandwiched and transferred by the feed chain 5a and the sandwiching basket 5b of the threshing device 5. The threshed and selected grain is supplied into the grain storage tank 6 disposed on the right side of the threshing device 5 and temporarily stored.

  As shown in FIG. 1 and FIG. 2, the threshing device is arranged on the upper side of the traveling vehicle platform 2 by transferring the napped cereals to the rear upper part by the harvesting device 4. 5 and is subjected to threshing processing while being held in the threshing device 5, and the wind-selected sorted grain is placed on the upper side surface of the traveling chassis 2 on the right side of the threshing device 5. It is configured to be transferred and supplied into the placed grain storage tank 6 and temporarily stored.

  A hydraulic cylinder device 7 that controls the vertical movement of the reaping device 4 is provided on the traveling chassis 2, and the output to the hydraulic cylinder device 7 is controlled by an electromagnetic proportional valve 8 built in the operating device 11. This configuration has a function of changing the raising / lowering speed of the reaping device 4, and the reaping device 4 is stopped by the reaping lock mechanism 9.

  In the above-described configuration, after the cutting lock mechanism 9 is released, at the time of the first cutting down operation, the cutting down output is not performed, and the main transmission lever 12 provided in the operating device 11 is operated to the “stop” position. Alternatively, the control device 13 is provided in the operation device 11 that outputs and controls the lowering of the cutting device 4 after detecting that the cutting device 4 has been lifted.

  The reaping device 4 is operated to the locked state by the reaping lock mechanism 9 when the reaping device 4 is inspected or repaired. For this reason, at this time, an operation of danger avoidance processing is performed. However, when this operation is canceled by mistake, the mowing device 4 may be lowered (human error). The worker was injured.

Thus, when the lock is released and the lowering operation is performed immediately, there is a risk of erroneous operation, but this danger can be avoided and it is safe.
The mowing raising / lowering control of the mowing device 4 will be described with reference to the block diagram shown in FIG. 2 and the flowchart shown in FIG.

  On the input side, the drive pedal (switch) 14a, the take-in pedal (switch) 14b, the automatic harvesting stop (switch) 15a, the harvesting lock (switch) 15b, and the harvesting monolever (switch) 14c are digital In this configuration, the signal is input to the signal input processing unit 16a.

  The cutting lift lever (position sensor) 12a, the main transmission lever (position sensor) 12, and the cutting height sensor (position sensor) 12b are configured to be input to the analog signal input processing unit 16b.

The vehicle speed sensor (rotation detection sensor) 12c is configured to be input to the pulse input detection unit 16c.
The digital signal is input from the digital signal input processor 16a to the cutting lift control means 17b. Further, the timer count means 17a and the mowing raising / lowering control means 17b are configured to input and output each other.

  The analog signal input processing unit 16b and the digital signal input processing unit 16a are configured to be input to the mowing clutch drive and stop means 17c. The cutting lift control means 17b, the cutting clutch drive, and the stopping means 17c are configured to be input / output from each other. Further, the cutting / lifting control means 17b outputs the hydraulic control current setting means 17d.

  A buzzer output 18a, a cutting increase output 18b, and a cutting decrease output 18c are performed by the cutting lift control means 17b. The hydraulic control current setting means 17d is configured to perform the cutting increase output 18b and the cutting decrease output 18c via the hydraulic valve current output 18d.

  The reaping clutch drive and stop means 17c are configured to perform input / output of the reaping clutch 18e and output of the reaping clutch 18e. In addition, when the reaping device 4 is lowered, an alarm is output.

The elevation control of the reaping device 4 will be described with reference to the flowchart shown in FIG.
The mowing raising / lowering control is mowing lock “ON” (step 100). If "NO", the harvest lock is stored (110). If “YES”, the cutting and lowering operation is performed (step 120). If “NO” in this (step 120), the cutting lowering operation is stored (step 130). If “NO” in this (step 130), a cutting and raising operation is performed (step 140). If “NO” in this (step 140), it is detected whether the cutting height is greater than the unlocking height (step 150). If “NO” in this (step 150), it is detected whether the drive pedal 14a is “OFF”. (Step 160), if “YES” in this (step 160), it is detected whether the main transmission lever 12 is at the stop position (step 170), and if “NO” in this (step 170), the vehicle speed is detected (step 180). ), The detected vehicle speed and the unlocking speed are compared (step 190). When the detected vehicle speed is detected to be large and “YES”, the cutting lock memory is released (step 200) and the return (step 240) is performed. is there.

  When (YES in step 100), the cutting lock storage is set (step 210), and when YES in (step 120), the cutting lowering storage is set (step 220), this (step 220), and an alarm. The output is set (step 230), and this (step 230) is a configuration that is input to return (step 240).

  With the above configuration, when the lock is released and the immediate lowering operation is performed, there is a risk of erroneous operation, but the danger can be avoided. In addition, it is possible to notify the driving worker that the danger is being avoided, thereby preventing an erroneous operation.

  In the lifting / lowering control of the harvesting device 4 of the combine 1, when it is detected that the harvesting device 4 is at a predetermined height or less, the descending output of the harvesting device 4 is shown in FIGS. 2 and 3. In addition, the lowering output is permitted by the cutting lift control means 17b of the control device 13 provided in the operation device 11.

Thereby, the lowering prohibition of the harvesting device 4 of the combine 1 can be canceled.
In the cutting / lifting control of the harvesting device 4 of the combine 1, the driving brake is released by operating the driving pedal 14a, the main transmission lever 12 is operated forward or backward, and the vehicle speed is a predetermined value. When the operation is performed as described above, the reaping device 4 is configured to output the lowering so as to lower.

Thereby, the prohibition of the lowering of the reaping device 4 can be released.
As shown in the block diagram shown in FIG. 2 and the flowchart shown in FIG. 4, the reaping device 4 of the combine 1 is configured to be raised or lowered.

  The reaping device 4 can be raised or lowered by a hydraulic cylinder (not shown) of the hydraulic control current setting means 17d, and the output to the hydraulic cylinder is controlled by an electromagnetic proportional valve (not shown). In the combine 1 having a function capable of changing the ascending / descending speed, when the vehicle speed is equal to or higher than a predetermined value and the height of the cutting device 4 is equal to or lower than the predetermined value, the output is increased to a height equal to or higher than the predetermined value. It is.

The elevation control of the reaping device 4 will be described with reference to the flowchart shown in FIG.
In the cutting and raising / lowering control, the cutting / moving mono lever is “ON” (step 300). If “NO”, the main transmission lever 12 is in the stop position (step 310). 320), if vehicle speed> high speed value (step 330), if "YES", it is detected whether the cutting has been automatically increased (step 340), if "YES", the cutting increase operation is performed (step 350), and if "NO" If it is “NO”, it is “returned” (step 410).

  "YES" when the mowing lever is "ON" (step 300), "YES" when the main transmission lever 12 is at the stop position (step 310), "NO" when the vehicle speed is higher than the high speed value (step 330) Whether the cutting has been automatically raised or not is detected, and if "NO" in (step 340), if the cutting height is higher than the high-speed running height (step 370) and "YES", whether the cutting has been automatically raised (step 380) ), And the process proceeds to the cutting and raising operation (step 350).

  “YES” when the mowing lever is engaged (step 300), “YES” when the main transmission lever is stopped (step 310), and “NO” when the cutting height is higher than the high-speed traveling height (step 370). In the case of “YES” in the harvest raising operation (350), the harvest raising output current value (standard) (step 390) is input, and the harvest raising output current value (standard) (step 390) Both the falling output current value (low speed) (step 400) are “returned” (step 410).

This simplifies the configuration and operation for avoiding danger.
As shown in FIG. 1, a narrow guide 25a that separates napped cereals and each weed body 25b, a pulling device 26 that raises napped cereals, and a raised cereal, as shown in FIG. Each of the scraping devices 27a of the culm scraping and transporting device 27, the cutting blade device 28a for harvesting the scraped culm, and the feed chain of the threshing device 5 by sandwiching and transporting the trimmed culm 5a and a cutting device 4 including a root / tip transfer device 27b, 27c, etc. of the cereal scraping transfer device 27 to be delivered to the holding rod 5b. The reaping device 4 is moved up and down with respect to the soil surface by a hydraulic cylinder device 7 that is hydraulically driven by the reaping / lowering control device 10.

  A support pipe rod 29b provided at the upper end portion of the support rod 29a inclined from the front lower part to the rear upper part of the cutting device 4 is rotatably supported by a support device 29c provided on the upper side surface of the traveling chassis 2. When the hydraulic cylinder device 7 is operated, the reaping device 4 rotates up and down together with the support rod 29a.

  In the culm transfer path formed by the culm scraping transfer device 27 of the reaping device 4, the presence or absence of the supply of cereal to the threshing device 5 is made by contacting the culm that is harvested and transferred. A cereal sensor 29d for detection is provided.

  As shown in FIG. 1, the front part on the grain storage tank 6 side is provided with an operation device 11 for starting and stopping the combine 1 and adjusting each part, and an operation seat 11a. An engine 11b is placed below the steering seat 11a.

  As shown in FIGS. 5 to 7, the power steering lever device 19 that moves the cutting device 4 up and down in accordance with the tilting amount of the power steering lever 19 a provided in the operating device 11, and the height position of the cutting device 4 In the direction control of the combine 1 that has a cutting height control that automatically adjusts the power steering lever 19a and that allows automatic operation (automatic cutting height control) only when the power steering lever 19a is neutral, the manual operation of the power steering lever 19a The neutral area for cutting up and down movement or the neutral area for correcting the direction is provided wider than the permission area for automatic operation.

  The operation of the power steering lever 19a will be described with reference to the flowchart shown in FIG. 6. When "START" is detected, "power steering inclination angle" is detected (step 400), and "inclination angle is a manual operation neutral region" is detected. If “NO”, “manual output according to the tilt angle” is performed (stop 420), and if “YES”, it is detected whether “the tilt angle is an automatic operation permission region” (step 430). If “YES”, “automatic operation” is performed (step 440), and if “NO”, “automatic stop” (step 450) is performed.

  Further, referring to the block diagram shown in FIG. 7, the operation of the power steering position (up and down) 20 is input to the control device 13, and the control device 13 moves the cutting height control valve to the upper 21a and the cutting height control valve to the lower 21b. This is the output configuration.

  As a result, when the cutting height control is temporarily stopped at the time of cutting around the field, starting cutting, etc., the automatic operation is temporarily canceled by slightly depressing the power steering lever 19a. “OFF” operation of the switch for setting “OFF” becomes unnecessary.

In addition, when automatic operation is resumed, the automatic switch “on” operation is not required at the time of restart, so that troublesome operation is eliminated, and automatic control with good operability is achieved.
As shown in FIG. 5, the power steering lever device 19 that moves the cutting device 4 up and down and the height of the cutting device 4 at the end of the cutting are automatically raised according to the amount of tilting of the power steering lever 19a. Compared with the automatic operation permission area, the neutral area of the power steering lever 19a is moved up and down by manual operation in the combine auto lift that permits automatic operation only when the power steering lever 19a is neutral. Widely configured.

  As a result, when the combine auto lift is temporarily stopped with a small amount of strips, etc., the automatic operation is temporarily canceled if the power steering lever 19a is slightly tilted, so automatic “on”-“off” is set. The switch “off” operation is unnecessary. In addition, when automatic operation is resumed, the automatic switch “on” operation is not required at the time of restarting, so that troublesome operation is eliminated, and automatic control with good operability can be achieved.

  As shown in FIG. 8, the transmission 1 of the combine 1 is provided with a sub-transmission control device 22 a in the transmission 1 of the combine 1 configured to be electrically switchable. 22 a is configured to receive “ON”-“OFF” of the high speed switch 23 a, the automatic switch 23 b, the low speed switch 23 c of the auxiliary transmission sensor 23, and the cutting clutch sensor 24. Further, it is configured to output from the auxiliary transmission control device 22a via the auxiliary transmission valve 22b. When the sub-shift setting is high speed (traveling position), select high speed, and when the sub-shift setting is low speed (working position), the work speed is set. When the reaping device 4 and the threshing device 5 are operating, the sub-shift is shifted to the working speed, and when the reaping device 4 and the threshing device 5 is stopped, the sub-shift is performed. It is the structure which switches to driving | running | working.

  As shown in FIG. 9, the operation will be described with reference to a flowchart. When “START” is selected, “sub-shift setting” is detected (step 510), and when automatic is detected at (step 510), (reaping) The state of the clutch) is detected (step 520). (Step 510) When “high speed” is detected in “the sub transmission setting” and (the cutting clutch) is detected in the “disengaged” state in (step 520), the “sub transmission valve” is set to “ “High speed” is set (step 530), and the process returns to “START”.

  Further, when “low speed” is detected at the “sub-shift setting” (step 510) and “cutting clutch” is detected to be “on”, the “sub-shift valve” is “low speed”. It is set (step 540) and returns to “START”.

  As a result, when the sub-shift is set to the high speed (travel) position by traveling on the road or moving in the field, etc., the next time, the sub-shift setting is not switched to the work speed and the sub-shift is kept at the high speed as it is. When the hand-grip work is started, the amount of processing becomes excessive, causing troubles such as clogging in the transporting and threshing device 5 part, and troubles such as dirty cuts after work are caused. In addition, since the speed change amount when the main transmission lever 12 is operated is large, there is a problem that alignment is difficult, but these can be solved.

  8 and 9, the grains stored in the grain storage tank 6 are transferred out of the machine. On the rear side of the grain storage tank 6, an extendable grain transfer / discharge device 31 is provided.

When the grain transfer / discharge device 31 is in the overhanging state, the sub-shift is shifted to the working speed, and when in the stowed state, the sub-shift is switched at a high speed.
Thus, conventionally, when the sub-shift is set to the high speed (running) position, such as by movement for grain discharge, the sub-shift setting is not changed to the work speed next time, and the sub-shift setting remains at the high speed setting. Thus, when the alignment operation of the grain transfer / discharge device 31 is started, there is a problem that the alignment is difficult because the amount of change in speed when the main transmission lever 12 is operated is large. According to the above-described invention, the vehicle speed can be lowered in conjunction with the position of the grain transfer / discharge device 31, and the operability and the safety can be improved.

  In the configuration shown in FIG. 10 and FIG. 11, a wetland switch 24b that can set wetlands / dry fields is provided, and when the sub-shift setting is high speed (traveling position), the high speed is selected, and the sub-shift setting is When the speed is low (work position), it is configured to set the work speed. When the sub-shift setting is set to automatic shift, and when the wet field is selected, the threshing device 5 is stopped. However, it is configured to stop switching the sub-shift to automatic travel (high speed).

  As shown in FIG. 11, the transmission device 22 of the combine 1 is provided with a sub-transmission control device 22 a in the transmission device 22 of the combine 1, which is configured to be electrically switchable. The device 22a is configured to receive “ON”-“OFF” of the high speed switch 23a, automatic switch 23b, low speed switch 23c of the auxiliary transmission sensor 23, and the reaping clutch sensor 24, the threshing clutch sensor 24a, and the wetland switch 24b. It is. The auxiliary transmission control device 22a outputs to the auxiliary transmission valve 22b and the auger position sensor 22c.

  Also, when the sub-shift setting is high speed (travel position), the high speed is selected, and when the sub-shift setting is low speed (work position), the work speed is set. When the wet paddy field is selected during the setting, the automatic shifting of the sub-shift to the traveling is stopped even when the threshing device 5 is stopped.

  As shown in FIG. 11, the operation will be described with reference to a flowchart. When “START” is selected, “sub-shift setting” is detected (step 610), and when automatic is detected in (step 610), the grain When the “position” of the transfer / discharge device 31 is detected (step 620), and it is detected that it is in the retracted state, the state of the cutting clutch 4a is detected (step 630), and when the “cut” state is detected, threshing When the state of the clutch 5c is detected (step 640) and the "disengaged" state is detected, the state of the wet pad switch 24b is detected (step 650).

  When “high speed” is detected in (step 610) and “off” state is detected in (step 650), the auxiliary transmission valve 22b is set to “high speed” (step 660), (step 660). Is a configuration that returns to “START”.

  “Low” is detected in (Step 610), “Overhang” state is detected in (Step 620), “On” state is detected in (Step 630), and “On” state is detected in (Step 640). When the “ON” state is detected in (Step 650), the auxiliary transmission valve 22b is set to “Low” (Step 670), and (Step 670) returns to “START”.

Thus, conventionally, when moving in the field, when the sub-shift is automatically set to the high-speed (traveling) position, the travel resistance becomes excessive, which may cause a travel load.
In addition, although there was a case where the main shift related to the acceleration / deceleration required in wet field traveling could not be finely adjusted, when the sub-shift is set to the automatic mode according to the present invention, it is possible to restrain the automatic speed increase. It is easy to move in the field and operability is improved.

  A potentiometer type vehicle speed sensor 30b for detecting the traveling vehicle speed is provided in the transmission path of the transmission mechanism 30a in the traveling mission case 30 mounted on the front end portion of the traveling chassis 2. Yes.

  As shown in FIG. 1, a grain transfer / discharge device 31 is provided on the rear side of the grain storage tank 6 for discharging the grains stored in the grain storage tank 6 to the outside of the machine. The discharge device 31 is provided with a discharge support cylinder 31a having a vertical transfer spiral 31b mounted therein so as to be pivotable in a substantially vertical posture. The entire length of the discharge support cylinder 31a extends in the longitudinal direction of the combine 1 at the upper end of the discharge support cylinder 31a. A discharge auger 31c having a discharge spiral 31d for discharging grains to the outside of the machine is provided in a front-rear direction so as to be extendable, vertically rotatable, and horizontally rotatable.

Combine left side side view Combine block diagram Combine flowchart The flowchart figure of the other Example of a combine. Action area diagram of combine power steering lever The flowchart figure of the other Example of a combine. Block diagram of another embodiment of a combine Block diagram of another embodiment of a combine The flowchart figure of the other Example of a combine. Block diagram of another embodiment of a combine The flowchart figure of the other Example of a combine.

Explanation of symbols

2 Traveling chassis 4 Mowing device 7 Hydraulic cylinder device 8 Proportional solenoid valve 9 Mowing lock mechanism 12 Main speed change lever 13 Control device

Claims (1)

  A cutting device (4) for cutting and transferring the nail flour grains to the upper rear side is provided on the front side of the traveling chassis (2), a hydraulic cylinder device (7) for raising and lowering the cutting device (4) is provided, and the hydraulic cylinder device (7 ) Is controlled by an electromagnetic proportional valve (8) so that the lifting speed of the reaping device (4) can be changed, and the lowering of the reaping device (4) is stopped by the reaping lock mechanism (9). After the unlocking of the cutting lock mechanism (9), the lowering output is prohibited during the first cutting lowering operation, and the main transmission lever (12) is operated to the stop position or the cutting device (4) is raised. And a control device (13) for permitting the descending output of the reaping device (4) to be provided after the fact is detected.

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