JP4960937B2 - Combine shift control device - Google Patents

Description

The present invention includes a shift means for shifting the driving speed of the cutting processing device that causes the traveling speed of the traveling device and the grain culm to perform the cutting processing and supply it to the threshing device,
A travel speed changer for operating the speed change means to change the travel speed of the travel device;
A manually operated reaping drive command means switchable between a drive command state for instructing a drive command for driving the reaping processing device and a command release state for instructing a release command for releasing the drive command for the reaping processing device;
Shift control means for operating the speed change means is provided,
The shift control means is
When the release command is commanded by the mowing drive command means, the mowing processing device is stopped when the traveling device stops and moves backward, and the mowing processing device is moved to the traveling when the traveling device moves forward. Executing a traveling linkage shift process for shifting the speed changer so as to drive at a set related speed so that the higher the driving speed of the device is, the higher the driving speed is; and the cutting drive When the drive command is commanded by the command means, the combine is configured to execute a non-associative shift process for shifting the shift means so as to drive the harvesting processing device at a set target drive speed. The present invention relates to a shift control apparatus.

The combine is for harvesting cereals planted in the field as it travels, and threshing with a threshing device. In the above-described combine shift control device, the shift control means performs the travel-linked shift process. By executing this, it is possible to automatically stop the reaping processing device in the travel stop state, and to automatically drive the reaping processing device as the vehicle travels.
Then, since the driving speed of the reaping processing device is set to a set relationship speed that is set as a relationship that increases as the traveling speed of the traveling device increases, the cereals are appropriately set up regardless of the traveling speed. The mowing process can be performed satisfactorily while causing the posture.
Further, in the above-described combine shift control device, a shift operation is performed so that the shift control unit drives the cut processing device at a preset target drive speed by instructing a drive command by the cut drive command unit. Since the unlinked shift process for shifting the means is executed, the reaping processing apparatus can be driven even when the traveling apparatus is stopped or moving backward (see, for example, Patent Document 1).

In the combine, it will be explained that it is necessary to drive the harvesting processing device even when the traveling device is stopped or moving backward.
For example, when a combine harvester performs a harvest harvesting operation while traveling forward toward the reed during a pillow trimming operation, when the combine stops driving at the reed and continues to move backward, the harvesting processing device is driven. If the harvested cereals remain in the grain transport route for transporting the harvested cereals in the harvesting processing device to the threshing device, to supply the harvested cereals to the threshing device In addition, there is a case where it is desired to drive the reaping processing device temporarily.
Moreover, when the traveling device is stopped, it may be desired to drive the reaping processing device for maintenance.

  In Patent Document 1, a forced take-in switch as a cutting drive command means is provided in a grip portion of a main transmission lever as a travel transmission operating tool. It should be noted that the speed at which the cutting processing device is driven when a driving command for driving the cutting processing device is instructed by the forced scrambling switch is not described.

JP 2003-250326 A

In the combine, when the drive command needs to be commanded by the mowing drive command means, when the traveling device is stopped or moving backward, the harvested cereal remaining in the culm transport path of the reaping processing device In addition to supplying to the threshing device and performing maintenance, there are the following cases.
That is, when entering the field while sliding down the slope with the traveling device stopped, or entering the field while traveling at a low speed, entering the field at a traveling stop state or at a very low speed. In some cases, a driving command is commanded by a mowing drive command means to drive a mowing processing device that is not driven in the travel linkage process or is driven at an extremely low speed so that the culling can be caused properly. Sometimes.

  Then, when supplying the harvested corn straw remaining in the grain harvesting path of the harvesting processing device to the threshing device, when the harvesting processing device is greatly raised from the harvesting height near the ground, the threshing from the harvesting processing device Since it becomes easy to cause troubles in the delivery of cereals to the device, it takes a short time until the cutting device is greatly raised from the cutting height near the ground, that is, the cutting device is cut near the ground. Since it is necessary to complete the supply of cereal to the threshing device while located at the height, it is desirable to drive the reaping processor at a fairly high speed. On the other hand, when entering the field at a stop running state or at a very low speed, if the cutting processing device is driven at a high speed, the inconvenience of causing threshing due to the high-speed triggering action, As a result of being conveyed toward the threshing device, inconvenience that causes conveyance troubles such as conveyance clogging occurs, so that it is desirable to drive the cutting processing device at a low speed.

  The present invention has been made in view of the above circumstances, and its purpose is to supply a threshing device to a threshing device, which is left in the cereal transport path of the reaping processing device, and to a running stop state. Another object of the present invention is to provide a combine shift control device capable of satisfactorily driving the harvesting processing device in each case of entering the field at a very low speed.

The speed change control device for the combine according to the present invention includes a speed change means for changing the driving speed of the reaping processing device that causes the traveling speed of the traveling device and the cereal to be reaped and supplied to the threshing device,
A travel speed changer for operating the speed change means to change the travel speed of the travel device;
A manually operated reaping drive command means switchable between a drive command state for instructing a drive command for driving the reaping processing device and a command release state for instructing a release command for releasing the drive command for the reaping processing device;
Shift control means for operating the speed change means is provided,
The shift control means is
When the release command is commanded by the mowing drive command means, the mowing processing device is stopped when the traveling device stops and moves backward, and the mowing processing device is moved to the traveling when the traveling device moves forward. Executing a traveling linkage shift process for shifting the speed changer so as to drive at a set related speed so that the higher the driving speed of the device is, the higher the driving speed is; and the cutting drive When the drive command is commanded by the command means, a non-associative shift process is performed in which the shift means is shifted so as to drive the cutting processing device at a set target drive speed. The first characteristic configuration is
There is provided a cereal presence / absence detecting means for detecting presence / absence of cereals at a start end side location of a cereal conveyance path for conveying the reaped cereals in the reaping device to the threshing device,
The shift control means uses the culm presence target speed when the cereal presence detection means is detected as the set target drive speed in the non-associative shift process and the cereal presence detection means. The target speed for cereal absence is not determined when the cereal is not detected, and the target speed for cereal presence is set to be lower than the target speed for cereal absence. In the point.

That is, when a drive command is commanded by the cutting drive command means, a non-associative shift process is executed, and if no corn straw is detected by the grain stalk presence / absence detection means, there is no corn straw When the reaping processing device is driven at the target speed for cereal and the culm is detected by the cereal occupancy presence / absence detection means, the reaping processing device is performed at the target speed for cereal presence that is lower than the target speed for the absence of cereal Will be driven.
And, when the traveling device is stopped or moving backward, when the harvested corn straw remaining in the grain transportation path of the harvesting processing device is supplied to the threshing device, a drive command is commanded by the harvesting drive command means Sometimes, the cereal presence / absence detecting means provided at the start side portion of the cereal conveyance path does not detect cereal, or even if it is detected, the cereal is not detected immediately after the cereal conveyance. Therefore, the reaping processing device is driven at the target speed for cereal non-existence higher than the target speed for cereal presence, and the reaping cereal remaining in the cereal conveyance path of the reaping processing device is removed. It can be quickly supplied to the threshing device.

  In addition, when entering the field while sliding down the slope with the traveling device stopped, or entering the field while traveling at a considerably low speed, the vehicle enters the field at a traveling stop state or at a very low speed. In this case, when the drive command is commanded by the cutting drive command means, immediately after the drive command is commanded, the grain scum is not detected by the grain stalk presence / absence detection means. Although the reaping processing device is driven at the target speed for existence, the cereal is processed by reaping and the cereal is immediately detected by the cereal presence / absence detecting means, and the target speed for the absence of cereal Since the harvesting processing device is driven at a lower target speed for the presence of the culm, the inconvenience of threshing due to the high speed action, and the harvested culm is transported toward the threshing device in the tip leading state, Transport jam And suppress a disadvantage caused conveyance troubles, and that culms can satisfactorily cutting processing.

  In short, according to the first characteristic configuration of the present invention, when the harvested culm remaining in the culm transporting path of the harvesting processing device is supplied to the threshing device, and the vehicle enters the field at a running stop state or at a very low speed. In each case, the present invention has provided a combine shift control device that can drive the reaping processing device satisfactorily.

In addition to the first feature configuration, the second feature configuration of the present invention includes:
The cutting drive command means is configured to command a speed index indicating the level of the driving speed of the cutting processing device in the drive command state,
The speed change control means increases the speed at which the culm presence target speed and the speed at which the culm is not present increases as the speed index commanded by the cutting drive commanding unit increases, and the speed index Are configured such that the speed at the same speed is determined in a state in which the target speed for cereal presence is lower than the target speed for the absence of cereal.

That is, in the drive command state in which the drive command is issued by the cutting drive command means, the speed index indicating the level of the drive speed of the harvesting processing device is commanded, whereby the target speed for culm presence and the target speed without the culm Can be changed to high or low, so that the cutting speed of the reaping processing device when the reaping device remaining in the corn transporting path of the reaping processing device is supplied to the threshing device, The driving speed of the harvesting device when entering the field at low speed can be adjusted to an appropriate speed depending on the situation of the cereal and the speed when the speed index is the same speed. Since the target speed for cereal present is lower than the target speed for non-existing cereal, supply the reaped cereals remaining in the cereal transport path of the reaping processing device to the threshing device When to In this case, the reaping processing device can be appropriately driven at a sufficiently high speed, and when entering the field at a traveling stop state or at a very low speed, the reaping processing device is driven at an unnecessarily high speed. It is possible to suppress the inconvenience that causes threshing due to the high-speed triggering action and the inconvenience that the harvested culm is transported toward the threshing device in the tip leading state and causes troubles such as transportation clogging. .
Moreover, in the combine, when the harvesting and harvesting work is performed while traveling, in the case where the culm in the field is partially lying down, in order to cause the culm and perform the mowing process, There is a case where it is desired to drive the cutting processing device at a driving speed higher than the speed driven by the processing. Even in such a case, the driving command is given by the cutting driving command means, and the cutting processing device By commanding a speed index corresponding to the target drive speed, the reaping processing device can be driven at a high speed, and the lying cereal can be appropriately caused to perform the reaping process. In this state, the cereal presence / absence detecting means detects the cereal, and the reaping processing device is driven at the cereal presence target speed, so the reaping processing device is driven at a higher speed than necessary. This can be suppressed.
Therefore, when supplying the cedar remaining in the reaping processing device to the threshing device in the pillow cutting operation, when entering the field with the running stopped state or at a very low speed, and when the cereal of the field partially falls In each of these cases, the present invention has provided a combine shift control device that can drive the reaping processing device satisfactorily.

The third feature configuration of the present invention is in addition to the second feature configuration,
The cutting drive command means includes a neutral position that has been biased to return, a command operation tool that can be moved and moved away from the neutral position, a position detection sensor that detects the position of the command operation tool, and a command control means. Configured,
The command control means commands the release command when the command operating tool is positioned in the neutral operation area on the neutral position side based on the detection information of the position detection sensor, and the command operating tool is in the neutral position. When it is located in the command operation area on the side farther from the neutral position than the operation area, the drive command is commanded, and in addition, the command operation tool becomes faster as it is located on the side away from the neutral position in the command operation area. The speed index is configured to be commanded.

That is, if the command operating tool is operated to the side away from the neutral position against the return biasing force and operated in the command operating range, a drive command can be commanded, and when the operation on the command operating tool is canceled, The command operating tool returns to the neutral operation range by the return biasing force, and the release command is commanded. In the command operation area, a higher speed index can be commanded as the command operating tool is operated away from the neutral position.
In this way, the drive command can be commanded by simply operating the command operating tool in the command operating range against the return biasing force from the neutral position, and the operation on the command operating tool can be released. By simply doing, it is possible to accurately issue a release command.
In the command operation area, the speed index can be changed by a simple operation that only changes the position of the command operation tool. In addition, the speed of operation increases as the command operation tool is moved away from the neutral position. Therefore, while monitoring the driving state of the reaping processing device, it can be gradually operated to the high speed side, and it is driven unnecessarily at high speed so as not to damage the cereal. It becomes easy to drive the cutting processing device at an appropriate driving speed.
Therefore, in addition to the operation and effect of the second feature configuration, it is possible to issue a drive command and a release command with a simple operation, and while avoiding driving at an unnecessary high speed, the cutting process is performed. It has come to provide a combine shift control device that facilitates driving the device at an appropriate driving speed.

In addition to the third feature configuration, the fourth feature configuration is
The command operating tool is a stepping operation type stepping pedal provided at the foot portion of the driver's seat in a state in which the stepping as the neutral position is returned to the released position.

That is, since the command operating tool is a stepping operation type stepping pedal provided in a state where the stepping position as the neutral position is released and biased to the stepped portion of the driver's seat, the operator sitting on the driver's seat By depressing the depressing pedal and adjusting the depressing amount, a drive command can be commanded and a speed index can be commanded, and a release command can be commanded by releasing the depressing step .
In this way, by operating the depression pedal, it is possible to issue a drive command or a release command, and it is also possible to command a speed index, so that an operator seated in the driver's seat can perform steering operations and fingers It is possible to issue a drive command or a release command with the foot while performing a steering operation such as a speed change operation of the traveling speed, and it is also possible to command a speed index.
Therefore, in addition to the operational effects of the third feature configuration, the combine command which can properly execute the drive command, the release command and the speed index command while performing the steering operation, the shifting operation of the traveling speed, etc. A shift control device has been provided.

In addition to any of the second to fourth feature configurations described above, the fifth feature configuration is
In the non-associative shift process, the shift control means executes the travel-linked shift process when the culm presence target speed or the culm absence target speed determined based on a command from the reaping drive command unit is executed. When the driving speed of the reaping processing apparatus is lower than the assumed driving speed, the reaping processing apparatus is driven at the driving speed of the reaping processing apparatus when the traveling linkage shift process is assumed to be executed, and the reaping driving is performed. The same speed as the driving speed of the reaping processing device and the driving thereof when it is assumed that the target speed for the presence of the culm or the target speed for the absence of the culm determined based on the command from the commanding unit is executed. When the speed is higher than the speed, the speed change means is shifted to drive the harvesting processing device at the target speed for the presence of the culm or the target speed for the absence of the culm. In that it is configured.

That is, when the driving command is issued and the speed index is commanded by the cutting drive command means, the target speed for culm presence or the target speed for the absence of culm determined based on the command of the cutting drive command means is When the driving speed of the harvesting processing device is lower than when the traveling linkage shift process is assumed to be executed, the harvesting processing device is driven at the driving speed of the harvesting processing device when the traveling linkage shift process is assumed to be executed. And when the driving command is issued and the speed index is commanded by the cutting drive command means, the target speed for culm presence or the target for the absence of culm determined based on the command of the cutting drive command means When the speed is the same as or higher than the driving speed of the reaping processing device when it is assumed that the traveling linkage shift processing is executed, the reaping processing device is driven at the set target driving speed. Is will be.
That is, when the traveling device is moving forward, in other words, when the traveling linkage shift process is being performed, the driving command is commanded by the cutting drive command means when the harvesting operation is being performed. For example, when the cereals in the field are partially lying down, or when entering the group of cereals in the field and starting the cutting operation, etc. An object of the present invention is to drive the reaping processing apparatus being driven at a speed higher than the driving speed. In such a case, if the driving speed of the reaping processing device is lower than the driving speed of the reaping processing device driven by the traveling linkage shift process, it becomes difficult to cause the culm to cause the reaping process more appropriately. It will be a thing.

In the fifth characteristic configuration, the driving speed of the harvesting processing device when it is assumed that the target speed for culm presence or the target speed for the absence of scab defined based on the command of the mowing drive command means executes the traveling linkage shift process. When the speed is higher than that, the reaping processing device is driven at the target speed for culm presence or the target speed for non-existence of culm determined based on the command of the reaping drive command means, but based on the command of the reaping drive command means It is assumed that the running linkage shift process is executed when the target speed for cereal presence or the target speed for the absence of shed is lower than the driving speed of the reaping processing device when the running linkage shifting process is assumed to be executed. Since the harvesting processing device is driven at the driving speed of the harvesting processing device at the time, it is possible to operate at high speed while avoiding unnecessarily reducing the driving speed of the harvesting processing device. It becomes possible.
Therefore, in addition to the operational effects of any one of the second to fourth feature configurations, it is possible to accurately perform a high speed operation while avoiding unnecessarily reducing the driving speed of the cutting processing device. It came to provide the shift control device of the combine which can be done.

In addition to any of the second to fifth characteristic configurations described above, the sixth characteristic configuration is
Based on the speed indicator commanded by the command control means when the command operating tool is positioned in the front side range that is the neutral position side in the command operation range, When the command operation tool is positioned in a rear range on the side farther from the neutral position than the front range in the command operation area, the target speed and the target speed for the absence of the culm are set to a set low speed Based on the speed index commanded by the command control means, the culm presence target speed and the culm non-existence target speed are configured to be gradually increased from the set low speed. It is in.

That is, when the command operating tool is operated to the front side range on the neutral position side in the command operating range, the target speed for cereal presence and the target speed for the absence of scab are set regardless of the position of the command operating tool in the front range. When the command operating tool is operated toward the side away from the neutral position in the rear range, which is the side farther from the neutral position than the front range in the command operation range, along with the operation, The target speed for cereal presence and the target speed for cereal absence are determined so as to gradually increase from the set low speed.
In other words, when the harvested cedar remains in the reaping processing device during the pillow trimming operation, the target speed when driving the reaping processing device by instructing the drive command by the reaping drive command means is the traveling Considering that the vehicle is stopped or traveling at a low speed, a constant and low speed is preferable, and such a target speed is set when the command operating tool is positioned in the front range in the command operating range. By doing so, when the command operation tool is operated to the front range, the reaping processing device can be driven at a speed convenient for supplying the cereal remaining in the reaping processing device to the threshing device, Moreover, since the cutting processing device can be driven at such a speed by operating the command operating tool in the front range defined as the range, the grain remaining in the cutting processing device. It drives the threshing apparatus to supply to the threshing apparatus the operation is of easy to perform.

In addition, when the command operating tool is operated toward the side away from the neutral position in the rear range of the command operation range, the gradually high target speed for culm presence and the target speed for the absence of culm can be set. When the harvest harvesting operation is performed while traveling, if the grain culm in the field is partially lying down, the command operating tool should be By performing the change operation, the target drive speed for the presence of cereals can be appropriately changed and set.
Therefore, in addition to the operational effects of any of the second to fifth characteristic configurations, the operation of driving the threshing device is easy to perform so as to supply the cereal residue remaining in the reaping processing device to the threshing device, and the reaping It has come to provide a combined shift control device that can appropriately operate the processing device to drive at high speed.

In addition to any of the second to sixth feature configurations, the seventh feature configuration is
The target drive speed is set with a maximum speed that is lower than the maximum speed among the drive speeds of the harvesting processing device when it is assumed that the cutting drive command means executes the traveling linkage shift process. It is in the point which is comprised.

That is, the target drive speed of the reaping processing device is changed by the reaping drive command means with a speed that is lower than the maximum speed among the driving speeds of the reaping processing device when it is assumed that the traveling linkage shift process is executed. Will be set.
In other words, when cutting and harvesting work while traveling, if the cereals in the field are partially lying down, the traveling speed should be set lower than the maximum speed that can be changed. The target drive speed of the reaping processing device that can be changed and set by the reaping drive command means is the same as the maximum speed among the driving speeds of the reaping processing device when it is assumed that the traveling linkage shift process is executed. If it is a speed, there is a possibility that troubles such as damaging the cereal by setting the target drive speed of the reaping processing apparatus to an unnecessarily high speed due to an erroneous operation.
According to the seventh characteristic configuration, the cutting drive command means does not set the target driving speed of the cutting processing device to an unnecessary high speed, and causes troubles such as damaging the cereal. This can be suppressed.
Therefore, in addition to the operational effects of any one of the second to sixth characteristic configurations, a combined shift control device that can avoid setting the target drive speed of the harvesting processing device to an unnecessary high speed has been provided. .

In addition to any of the first to seventh feature configurations described above, the eighth feature configuration is
An execution command means for selectively instructing a permission command for permitting the execution of the unlinked shift process and a stop command for stopping the execution;
When the permission command is commanded by the execution command means, the shift control means executes the unlinked shift processing, and when the stop command is commanded by the execution command means, It is in the point which is comprised so that an unlinked shift process may not be performed.

In other words, when performing harvesting and maintenance work in the field or performing maintenance, by issuing a permission command from the execution command unit, the shift control unit can execute the unlinked shift process, and the road running can be performed. When performing, by issuing a stop command by the execution command means, it is possible to suppress unnecessarily executing the unlinked shift process due to an erroneous operation or the like on the cutting drive command means.
Therefore, in addition to the operational effects of any of the first to seventh characteristic configurations, a combined shift control device capable of suppressing the unrelated shift processing from being unnecessarily executed has been provided.

Embodiment
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
As shown in FIGS. 1 and 2, the combine includes a traveling vehicle body B equipped with a pair of left and right crawler type traveling devices 1 and a control unit A having a driver's seat 2, and a front body frame 3 of the traveling vehicle body B. A ripening processing device 4 that is connected to a section so as to be movable up and down, and a threshing device 5 and a grain tank 6 that are arranged side by side in the lateral direction of the traveling vehicle body B at a location on the rear side of the machine body frame 3. On the other hand, cereals such as rice and wheat are harvested, and the harvested cereals are threshed.
In other words, in the cutting processing device 4, the cutting unit frame 4 a is swung up and down with respect to the body frame 3 by the hydraulic cylinder 7, so that the cutting unit laterally extends at the front end of the cutting processing device 4. The plurality of weeding tools 4b positioned side by side are configured to move up and down to a descending work state in which the weeding tool 4b is lowered to the vicinity of the ground and to a non-working state in which the weeding tool 4b is lifted from the ground.
Then, when the traveling vehicle body B travels with the cutting processing device 4 in the descending work state, the cutting processing device 4 adjoins the planted cereals located on the plurality of planting strips to be cut by the corresponding weeding tools 4b. Planting cereals of planting strips to be cut, and planting cereals from each weeding tool 4b are raised and processed by a corresponding pulling device 4c and cut by a clipper-shaped cutting device 4d, After the harvested cereals are transported to the junction in the width direction of the vehicle body by the front transport device (not shown), the harvested cereals are transported to the rear side of the traveling vehicle body B by the vertical transport device 4e, and the threshing device 5 It is comprised so that it may supply to the starting end part of the threshing feed chain 5a.
The cedar for detecting the presence or absence of cereals at the start end portion of the vertical conveying device 4e, that is, the presence or absence of cereals at the start end portion of the cereal conveyance path for conveying the reaped cereals in the cutting processing device 4 to the threshing device 5. As the presence / absence detecting means, a stock source sensor 50 is provided which detects the presence / absence of the cereal by contacting the stock of the reaped cereal.

  The threshing device 5 supplies the tip side to a handling room (not shown) while sandwiching the stock side of the harvested cereal by the threshing feed chain 5a and transporting it backward in the traveling vehicle body B. Threshing is performed by a rotating barrel (not shown). The grain tank 6 collects and stores the threshed grains conveyed from the threshing device 5. The grain tank 6 includes an auger-shaped discharge device 8 that discharges stored threshing grains.

As shown in FIG. 3, the rotational force of the output shaft 10 a of the engine 10 provided below the driver seat 2 in the traveling vehicle body B is transmitted to the input shaft 5 b of the threshing device 5 via a belt tension type threshing clutch 14. Further, the rotational force from the output shaft 10a of the engine 10 is transmitted to the input shaft 13 of the traveling transmission S connected to the input side of the traveling transmission case 12 via the belt tension type transmission device 11, The output from the output shaft 10 a of the engine 10 is transmitted to the input shaft 16 of the cutting transmission device K via a belt tension type cutting clutch 15.
That is, the speed change means Z for changing the travel speed of the travel apparatus 1 and the drive speed of the harvesting treatment apparatus 4 is constituted by the travel transmission apparatus S and the harvest transmission apparatus K connected in parallel to the engine 10.

The travel transmission S is configured as a hydrostatic continuously variable transmission composed of a variable displacement hydraulic pump 17 and a hydraulic motor 18, and continuously shifts forward travel speed and reverse travel speed. It is supposed to be. A shift operation lever 24 (see FIG. 4) is disposed on the side of the driver's seat 2 as a travel shift operation tool that can be operated from the travel neutral position N to the forward range F and the reverse range R. The speed change lever 24 is configured to change the speed of the travel transmission S.
The cutting transmission device K is configured as a hydrostatic continuously variable transmission including a variable displacement hydraulic pump 19 and a hydraulic motor 20, and the driving speed of the cutting processing device 4 is continuously variable. Configured to operate.

  The operation of the travel transmission device S by the shift operation lever 24 will be described. As shown in FIG. 4, a target speed detection sensor 25 that detects the operation position of the shift operation lever 24 and a travel speed that detects the travel speed of the travel device 1. As detection means, a traveling speed detection sensor 26 for detecting the rotational speed of the hydraulic motor 18 and a traveling electric motor 27 for traveling speed change operation for changing the discharge amount of the hydraulic pump 17 of the traveling transmission device S are provided. Based on the detection information of the target speed detection sensor 25 and the travel speed detection sensor 26, control means for controlling the operation of the travel electric motor 27 so as to operate the travel transmission S to a state corresponding to the operation position of the travel shift lever 24. H is provided. That is, when the travel shift lever 24 is operated to the travel neutral position N, the travel transmission device S is operated to the shift neutral state, and the travel shift lever 24 is operated to the side away from the travel neutral position N in the forward range F. The travel transmission device S is operated so as to be in a high-speed forward state, and the travel transmission device 24 is further configured to be in a high-speed reverse state as the travel shift lever 24 is further moved away from the travel neutral position N in the reverse range R. In order to operate S, the control means H is configured to control the operation of the electric motor 27 for traveling speed change.

As shown in FIG. 4, the swing operation is performed to the clutch disengagement position n, the threshing clutch engagement command position D for commanding the engagement of the threshing clutch 14, and the clutch engagement command position Y for commanding the engagement of the threshing clutch 14 and the mowing clutch 15. A free clutch operation lever 44 is provided at a side portion of the driver's seat 2, and detection information of a position detection sensor 45 that detects an operation position of the clutch operation lever 44 is input to the control means H. Then, the control means H is configured to operate the threshing clutch operating electric motor 46 and the reaping clutch operating electric motor 47 based on the information of the position detection sensor 45 to perform the on / off operation of the threshing clutch 14 and the reaping clutch 15. ing.
Further, a cutting auto command switch 48 for selectively instructing an execution command state in which the automatic operation of the cutting clutch 15 is executed and a release state in which the automatic operation is not executed, and a lifting operation for detecting the lifting position of the cutting processing device 4 with respect to the traveling vehicle body B. A position sensor 49 is provided.
Then, the control means H cuts based on the detection information of the lift position sensor 49 in a state where the execution command state is commanded by the cutting auto command switch 48 and the clutch operating lever 44 is operated to the clutch engagement command position Y. When it is detected that the processing device 4 is raised by a set height or more with respect to the traveling vehicle body B, the cutting clutch 15 is operated to be disconnected, and the cutting processing device 4 is operated based on the detection information of the lift position sensor 49. When it is detected that the traveling vehicle body B is lowered to a position lower than the set height, the cutting clutch 15 is engaged and operated.

As shown in FIG. 4, a steering lever 42 that is swingable in the front-rear direction and the left-right direction is provided at the front portion of the driver seat 2, and the steering lever 42 is operated forward from the neutral position. When the control lever 42 is operated backward from the neutral position, the elevation command switch 41 that commands the elevation command is operated. Then, the command information of the raising / lowering command switch 49 is input to the control means H, and the control means H controls the control valve 7A of the hydraulic cylinder 7 for raising / lowering the cutting processing device 4 based on the ascending command and the descending command. Is operated to raise and lower the cutting processing device 4.
Although not described in detail, when the control lever 42 is operated leftward from the neutral position, a left turn is commanded, and when the control lever 48 is operated rightward from the neutral position, a right turn is commanded. A turn command switch 40 is provided. Then, the command information of the turn command switch 40 is input to the control means H, and the control means H switches the pair of left and right traveling devices 1 to the turn drive state based on the left turn command and the right turn command. The driving means (not shown) is operated to turn.

The operation of the cutting transmission device K will be described. As shown in FIG. 4, a cutting speed detection sensor 28 that detects the rotational speed of the hydraulic motor 20 as a cutting driving speed detection unit that detects the driving speed of the cutting processing device 4. Further, there is provided a cutting electric motor 29 for cutting and changing the discharge amount of the hydraulic pump 19 of the cutting transmission K.
Then, based on the detection information of the traveling speed detection sensor 26 and the cutting speed detection sensor 28, the control means H as a shift control means controls the operation of the cutting electric motor 29 for the cutting speed as described below. It is configured.
That is, the drive command can be switched between a drive command state for instructing a drive command for driving the reaping processing device 4 at the set target drive speed M and a command release state for instructing a release command for releasing the drive command for the reaping processing device 4. In the state, a manually operated mowing drive command means J for commanding a speed index P indicating the level of the driving speed of the mowing processing device 4 is provided.

When the release command is commanded by the cutting drive command unit J, the control unit H executes a travel linkage shift process, and when the drive command is commanded by the cutting drive command unit J, the control unit H is not linked. The shift process is performed.
In the traveling linkage shift process, the control means H stops the cutting processing device 4 when the traveling device 1 stops and moves backward, and sets the driving speed W of the cutting processing device 4 when the traveling device 1 moves forward. The cutting electric motor 29 is operated so as to shift the cutting transmission device K so that the setting relation speed (see FIG. 5) determined to be higher as the traveling speed V becomes higher.
Further, the control means H operates the reaping electric motor 29 to shift the reaping transmission device K so that the reaping processing device 4 is driven at the set target driving speed M in the unlinked shifting process, and As the set target drive speed M, as shown in FIG. 6, the culm is detected by the culm presence target speed M1 when the culm is detected by the cultivar sensor 50 and the cultivar sensor 50. The target speed M0 for cereal absence is not determined when the target speed M1 for cereal presence is set to be lower than the target speed M0 for cereal absence, The target speed M1 and the target speed M0 for cereal absence are made higher as the speed index P commanded by the cutting drive command means J is higher, and the speed when the speed index P is the same speed is set as the grain speed. The target speed M1 for the presence of potatoes It is configured to define a state which is a slower than use the target speed M0.

In other words, as shown in FIG. 4, the cutting drive command means J includes a neutral position T that is urged to return, a command operation tool 30 that can be moved to the side away from the neutral position T, and a command operation thereof. The position detection sensor 31 for detecting the position P of the tool 30 and the command control means 32 are configured.
The command operating tool 30 is constituted by a stepping operation type stepping pedal (see FIG. 4) provided in a position corresponding to the foot portion of the driver's seat 2 so as to return to the raised position as the neutral position T. The driver's foot seated in the driver's seat 2 can be stepped on. Specifically, it is provided at a location corresponding to the front of the right foot of the operator seated in the driver's seat 2, that is, at a location in front of the driver's seat 2 and closer to the right side.

  Based on the detection information of the position detection sensor 31, the command control means 32 issues a release command when the command operating tool 30 is positioned in the neutral operation area U on the neutral position side, and the command operating tool 30 is in the neutral operation area. When it is located in the command operation area G on the side farther from the neutral position T than U, a drive command is commanded. In addition, the command operating tool 30 becomes faster as it is located on the side farther from the neutral position T in the command operation area G. A speed index P is commanded.

  Then, as shown in FIG. 6, the speed index P commanded by the command control means 32 when the command operating tool 30 is positioned in the front range G1 which is the neutral position side in the command operating range G. Based on the above, the culm presence target speed M1 and the culm absence target speed M0 as the set target drive speed M of the reaping processing device 4 are set to the set low speed, and the front range in the command operation range G Based on the speed index P commanded by the command control means 32 when the command operating tool 30 is positioned in the rear range G2 on the side farther from the neutral position T than G1, the set target drive speed of the cutting processing device 4 is set. In a form in which the culm presence target speed M1 and the culm non-existence target speed M0 as M are determined so as to gradually increase from the set low speed to the side where the command operation tool 30 is away from the neutral position T. And directive When the speed index P commanded by the control means 32 is the same, the target speed M1 for cereal presence is half the target speed M0 for cereal absence, The target speed M0 for cereal absence when the speed index P commanded by the control means 32 is maximum is the maximum among the driving speeds W of the reaping processing device 4 when it is assumed that the running linkage shift process is executed. The speed is set to be lower than the speed W1, specifically, to be ½ of the maximum speed W1.

  The command control means 32 is configured using the control means H using the storage function and the discrimination function of the control means H. That is, the control means H determines whether a release command or a drive command is commanded based on the detection information of the position detection sensor 31, and additionally determines the speed index P.

In addition, a command switch 35 is provided as an execution command means for selectively commanding a permission command for permitting the execution of the unlinked shift process and a stop command for stopping the execution.
When the permission command is instructed by the command switch 35, the control means H executes the non-associative shift process, and when the stop command is instructed by the command switch 35, the non-associative shift process is performed. It is configured not to run.

Next, a detailed description will be given of a cutting shift process for shifting the cutting transmission device K by the control means H based on the flowchart of FIG.
First, it is determined whether or not the mowing clutch 15 is engaged, that is, whether or not the clutch operating lever 44 is operated to the clutch engagement command position Y (# 1). When it is operated, it is determined whether or not the execution command state is commanded by the cutting auto command switch 48, that is, whether or not the cutting auto command switch 48 is turned on (# 2).
When the cutting auto command switch 48 is not turned on, and even when the cutting auto command switch 48 is turned on, when the cutting processing device 4 is below the set height, that is, when the cutting processing device 4 is being driven. In (# 3), it is determined whether or not a permission command is commanded by the command switch 35 (# 4). When the permission command is commanded, a drive command is commanded by the cutting drive command means J. Is determined (# 5).

  When the permission command is instructed by the command switch 35 and the drive command is instructed by the cutting drive command means J, the target driving speed M set by the cutting drive command means J is set for the cutting processing device 4. The unlinked shift process is executed to shift the cutting transmission device K so that it is driven at (# 7), and when the permission command is not instructed by the command switch 35, or by the cutting drive command means J When the drive command is not instructed, the cutting transmission device K is shifted so that the driving speed W of the cutting processing device 4 is set to a set relationship speed that is set so as to increase as the traveling speed V of the traveling device 1 increases. The traveling linkage shift process to be operated is executed (# 6).

  Further, when it is determined that the clutch operation lever 44 is not operated to the clutch engagement command position Y (# 1), the cutting auto command switch 48 is turned on (# 2), and the cutting processing device 4 is set. When it is determined that the height is higher than the height (# 3), stop processing (# 8) for stopping the operation of the mowing electric motor 29 is executed.

[Another embodiment]
Next, another embodiment will be described.

(1) Based on the speed index P commanded by the command control means 32, the culm presence target speed M1 and the culm absence target speed M0 as the set target drive speed M of the reaping processing device 4 are determined. The form can be variously changed in place of the form described in the above embodiment.
For example, as shown in FIG. 8, as in the above-described embodiment, the speed commanded by the command control means 32 when the command operating tool 30 is positioned in the front range G1 that is the neutral position side in the command operating range G. Based on the index P, the culm presence target speed M1 and the culm non-existence target speed M0 as the set target drive speed M of the reaping processing device 4 are set to the set low speed, and within the command operation range G Based on the speed index P commanded by the command control means 32 when the command operating tool 30 is positioned in the rear range G2 on the side farther from the neutral position T than the front range G1, the command operating tool 30 is moved to the neutral position T. When the speed index P commanded by the command control means 32 is the same, and the speed index P commanded by the command control means 32 is the same, the target speed M1 for cereal presence For non-existence of grains In the above-described embodiment, the target speed for the absence of cereal when the speed index P commanded by the command control means 32 is the maximum is determined. In a mode in which M0 is set to a speed lower than the maximum speed W1 among the driving speeds W of the reaping processing device 4 when it is assumed that the traveling linkage shift process is executed, specifically, to a half of the maximum speed W1. However, instead of this, when the speed index P commanded by the command control means 32 is maximum, it is assumed that the target speed M0 for non-existence of culms executes the running linkage shift process. You may make it determine with the form made into the same speed as the speed W1 which becomes the maximum among the driving speed W of the cutting processing apparatus 4. FIG.
(2) Further, based on the speed index P commanded by the command control means 32, the culm presence target speed M1 and the culm absence target speed M0 as the set target drive speed M of the cutting processing device 4 As shown in FIG. 9, the command operating tool 30 performs a command operation on the culm presence target speed M1 and the culm non-existence target speed M0 as the set target drive speed M of the reaping processing device 4. When the speed index P commanded by the command control means 32 is the same as the distance from the neutral position T in the region G, the higher the speed is, the faster the speed index P is. The target speed M1 is determined so as to be half the target speed M0 for cereal absence, and the absence of culm when the speed index P commanded by the command control means 32 is maximum. Target speed M0 is running The speed is lower than the maximum speed W1 among the driving speeds W of the reaping processing device 4 when it is assumed that the linked shift process is executed, specifically, the speed is determined to be ½ of the maximum speed W1. Also good.
Further, as shown in FIG. 10, as in FIG. 9, the culm presence target speed M <b> 1 and the culm non-existence target speed M <b> 0 as the set target drive speed M of the reaping processing device 4 are set to the command operation tool. When the speed index P commanded by the command control means 32 is the same, and the speed index P commanded by the command control means 32 is the same as the position 30 is more distant from the neutral position T in the command operation range G, In the case of FIG. 9, the speed commanded by the command control means 32 is determined in such a manner that the target speed M1 for cereal presence is half the target speed M0 for the absence of cereal. A speed that is lower than the maximum speed W1 among the driving speeds W of the reaping processing device 4 when the target speed M0 for non-existence of the culm when the index P is maximum is assumed to execute the traveling linkage shift process, specifically Is the maximum speed W1 However, instead of this, it is assumed that the target speed M0 for cereal absence does when the speed index P commanded by the command control means 32 is the maximum, executes the running linkage shift process. You may make it determine with the form set as the same speed as the speed W1 which becomes the maximum among the drive speed W of the cutting processing apparatus 4 at the time.

(3) In the above embodiment and the other embodiments of the above (1) and (2), when the speed index P commanded by the command control means 32 is the same, the target for cereal presence Although the case where the speed M1 is set to be half the speed of the target speed M0 for cereal absence, the target speed M1 for cereal presence is set to 3/4 of the target speed M0 for cereal absence. Alternatively, it is possible to variously change how much the target speed M1 for cereal presence is reduced from the target speed M0 for non-existence, such as １ ／.

(4) In the above embodiment and the other embodiments of the above (1) and (2), the entire range of the speed index P commanded by the command control means 32 is uniformly used for the presence of cereals. Although the case where the target speed M1 is set to be half the speed of the target speed M0 for cereal absence is exemplified, for example, in the range on the high speed side compared to the low speed side range of the speed index P Various changes can be made in the form in which the target speed M1 for cereal presence is lower than the target speed M0 for cereal absence, such as reducing the ratio of lowering the target speed M1 for the cereal non-existence target M0.

(5) In the above embodiment, the step pedal is illustrated as the command operation tool 30, but the operation lever is provided at the front part or the lateral part of the driver's seat 2 and can be moved and operated in the front-rear direction and the lateral direction. Although the command operation tool 30 may be configured, it is more convenient on the operation surface to configure the command operation tool 30 with a stepping pedal.

(6) In the above embodiment, the speed change means Z for changing the travel speed of the travel apparatus 1 and the drive speed of the harvesting treatment apparatus 4 from the travel transmission apparatus S and the harvest transmission apparatus K connected in parallel to the engine 10. For example, the output of the traveling transmission device S connected to the engine 10 is branched to drive the cutting processing device 4, and the cutting processing device 4 is driven by power from the traveling transmission device S. When driving at a higher speed than the driven speed, various configurations can be used for the transmission means Z, such as a configuration in which the cutting processing device 4 is driven by an electric motor while being separated from the traveling transmission device S. it can.

(7) In the above-described embodiment, the amount of change in the driving speed W of the reaping processing device 4 with respect to the unit change amount of the traveling speed V is the same as the setting related speed in the traveling linkage shift processing in the entire range of the traveling speed change range. 5, the change amount of the driving speed W of the reaping processing device 4 with respect to the unit change amount of the traveling speed V may be increased as the traveling speed V becomes higher. The setting speed of the traveling speed V and the driving speed W of the cutting processing device 4 can be variously changed.

(8) In the above-described embodiment, the stock sensor 50 provided at the start end of the vertical conveyance device 4e is exemplified as the cereal presence / absence detection means. For example, before the harvested cereal is joined and conveyed toward the vertical conveyance device 4e. Various modifications can be made to the specific configuration of the cereal presence / absence detecting means, such as detecting the presence or absence of cereals in the transport device.
In addition, various configurations can be used as the configuration of each unit necessary for carrying out the present invention.

Combine side view Overall plan view of combine Schematic diagram of the transmission Block diagram showing control configuration The figure which shows the relationship between driving speed and the driving speed of a cutting processing device The figure which shows the relationship between the position of command operation tool, and setting target drive speed Flow chart showing operation of control means The figure which shows another relationship between the position of command operation tool, and setting target drive speed The figure which shows another relationship between the position of command operation tool, and setting target drive speed The figure which shows another relationship between the position of command operation tool, and setting target drive speed

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Traveling apparatus 2 Driver's seat 4 Harvesting processing apparatus 5 Threshing apparatus 10 Engine 24 Traveling speed operation tool 26 Traveling speed detection means 28 Cutting speed driving speed detection means 29 Actuator 30 for speed change operation Command operating tool 31 Position detection sensor 32 Command control means 35 Execution command means G Command operation range G1 Front side range G2 Rear side range J Cutting drive command means K Cutting transmission P P Speed index S Travel transmission T Neutral position U Neutral operation range V Travel speed W Drive speed Z Shift control means

Claims (8)

Speed change means for changing the driving speed of the cutting processing device that causes the traveling speed and cereal of the traveling device to cause cutting and supply to the threshing device;
A travel speed changer for operating the speed change means to change the travel speed of the travel device;
A manually operated reaping drive command means switchable between a drive command state for instructing a drive command for driving the reaping processing device and a command release state for instructing a release command for releasing the drive command for the reaping processing device;
Shift control means for operating the speed change means is provided,
The shift control means is
When the release command is commanded by the mowing drive command means, the mowing processing device is stopped when the traveling device stops and moves backward, and the mowing processing device is moved to the traveling when the traveling device moves forward. Executing a traveling linkage shift process for shifting the speed changer so as to drive at a set related speed so that the higher the driving speed of the device is, the higher the driving speed is; and the cutting drive When the drive command is commanded by the command means, the combine is configured to execute a non-associative shift process for shifting the shift means so as to drive the harvesting processing device at a set target drive speed. A shift control device of
There is provided a cereal presence / absence detecting means for detecting presence / absence of cereals at a start end side location of a cereal conveyance path for conveying the reaped cereals in the reaping device to the threshing device,
The shift control means uses the culm presence target speed when the cereal presence detection means is detected as the set target drive speed in the non-associative shift process and the cereal presence detection means. The target speed for cereal absence is not determined when the cereal is not detected, and the target speed for cereal presence is set to be lower than the target speed for cereal absence. Combine shift control device. The cutting drive command means is configured to command a speed index indicating the level of the driving speed of the cutting processing device in the drive command state,
The speed change control means increases the speed at which the culm presence target speed and the speed at which the culm is not present increases as the speed index commanded by the cutting drive commanding unit increases, and the speed index The speed change control device for a combine according to claim 1, wherein the speed at the same speed is determined in a state in which the target speed for cereal presence is lower than the target speed for cereal absence. . The cutting drive command means includes a neutral position that has been biased to return, a command operation tool that can be moved and moved away from the neutral position, a position detection sensor that detects the position of the command operation tool, and a command control means. Configured,
The command control means commands the release command when the command operating tool is positioned in the neutral operation area on the neutral position side based on the detection information of the position detection sensor, and the command operating tool is in the neutral position. When it is located in the command operation area on the side farther from the neutral position than the operation area, the drive command is commanded, and in addition, the command operation tool becomes faster as it is located on the side away from the neutral position in the command operation area. The combine shift control device according to claim 2, wherein the speed change index is commanded.   The combine shift control according to claim 3, wherein the command operating tool is a stepping operation type stepping pedal provided at a step portion of a driver's seat in a state where the stepping-down as the neutral position is returned to the released position. apparatus.   In the non-associative shift process, the shift control means executes the travel-linked shift process when the culm presence target speed or the culm absence target speed determined based on a command from the reaping drive command unit is executed. When the driving speed of the reaping processing apparatus is lower than the assumed driving speed, the reaping processing apparatus is driven at the driving speed of the reaping processing apparatus when the traveling linkage shift process is assumed to be executed, and the reaping driving is performed. The same speed as the driving speed of the reaping processing device and the driving thereof when it is assumed that the target speed for the presence of the culm or the target speed for the absence of the culm determined based on the command from the commanding unit is executed. When the speed is higher than the speed, the speed change means is shifted to drive the harvesting processing device at the target speed for the presence of the culm or the target speed for the absence of the culm. Combine shift control device according to any one of claims 2-4 configured.   Based on the speed indicator commanded by the command control means when the command operating tool is positioned in the front side range that is the neutral position side in the command operation range, When the command operation tool is positioned in a rear range on the side farther from the neutral position than the front range in the command operation area, the target speed and the target speed for the absence of the culm are set to a set low speed Based on the speed index commanded by the command control means, the cereal presence target speed and the cereal absence target speed are configured to be gradually increased from the set low speed. The combine shift control device according to any one of Items 2 to 5.   When the shift control means assumes that the travel linkage shift process is to be executed, the speed that is lower than the maximum speed among the drive speeds of the reaping processing device is set as the maximum speed, and the target speed for the absence of the culm The shift control apparatus for a combine according to any one of claims 2 to 6, wherein An execution command means for selectively instructing a permission command for permitting the execution of the unlinked shift process and a stop command for stopping the execution;
When the permission command is commanded by the execution command means, the shift control means executes the unlinked shift processing, and when the stop command is commanded by the execution command means, The combine shift control device according to any one of claims 1 to 7, wherein the combine shift control device is configured not to execute the unlinked shift processing.

Images