JP2001292617A - Grain culm feeder for combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To quickly adjust the position of a threshing depth-controlling and transferring device for controlling threshing depth of cereal culms and transporting the cereal culms to an adequate position if the position of the above device is largely moved when culms are reaped with a reaper of combine harvester. SOLUTION: A threshing depth-controlling and transferring device 7 is controlled and transferred by a controller based on detection of a threshing depth detector 10 for detecting threshing depth of cereal culms reaped and transferred with a reaper 3. Rotation of the threshing depth-controlling and transferring device 7 is changed and controlled to high-speed rotation by the controller until the threshing depth detector 10 detects adequate threshing depth. A traveling device travels for a predetermined distance or rotation of the threshing depth-controlling and transferring device 7 is changed and controlled to high- speed rotation until a predetermined time passes when backward traveling is started or re-traveling is started after stopping traveling.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for detecting the handling depth of a grain culm which is transported and supplied to a threshing machine by cutting the culm harvested by a reaper on the front side of a traveling device. And
Based on the detection result, the handling depth adjustment transfer device that adjusts the handling depth of the cereal stem to the deep handling side or the shallow handling side and transports it is adjusted by the control device. Until the handling depth detecting device detects an appropriate handling depth of the grain stalk, the control device changes the rotation of the handling depth adjusting transfer device to a predetermined high speed and controls the rotation until the handling depth detection device detects the appropriate handling depth of the grain. This is a technique for transferring culms and can be used as a grain culm supply device for combine harvesters.

[0002]

2. Description of the Related Art In a combine harvesting operation, a reaping culm is harvested by a reaper in front of a traveling device of the combine. The grain is transported to the upper rear by a handling device for adjusting the handling depth, etc., and the handling depth of the grain stalk being transported is the deep handling side or the shallow handling side by the depth detection device provided near the transfer end. Based on the result of the detection, it is provided in the middle of the transfer to adjust the handling depth, and the control device detects that the handling depth adjustment transfer device to be transferred is on the deep handling side. If it is detected that it is shallow, or if it is detected to be shallow, it will be moved and controlled to the deep side, and the grain culm being transported will be at the standard handling depth that is the appropriate handling depth. The grain is then transferred to the threshing machine and fed to the threshing machine. , And it is temporarily stored to the combine.

[0003] When the harvesting operation is started, when the harvesting operation is temporarily stopped and restarted, when the traveling device is traveling backward, and during the harvesting operation, all of the above operations are carried out. Based on the detection result of the detecting device, the handling depth of the grain stalk is adjusted while being provided during the transfer of the grain stalk, and the rotation of the handling depth adjustment transfer device for transferring is controlled to rotate at a constant rotation, and the grain stalk is It is transferred at a constant speed and supplied to a threshing machine.

[0004]

When pillows are harvested at four corners of a field, forward running, stopping, backward running, etc. are often performed repeatedly. When transferred to, the depth adjustment transfer device provided in the middle of the transfer may be at the deep handling side position, or because the high mowing is not stable, the position of the depth adjustment transfer device may greatly change, In this state, when the ship moves backward and reenters the uncut area, the transfer device for adjusting the depth of operation may be greatly deviated from an appropriate position. The threshing performance of this threshing machine has been reduced due to the improper handling depth of the grain culm supplied to the machine, but this invention is intended to solve these problems. is there.

[0005]

For this purpose, the present invention relates to the handling of the harvested grain culm which is transported and supplied to the threshing machine 9 by threshing by cutting the reaper 3 on the front side of the traveling device 14. A processing depth detecting device 10 for detecting a cutting depth, and adjusting a processing depth of the harvested grain culm to a deep processing side or a shallow processing side based on a detection result detected by the processing depth detection device 10. In the combine provided with the depth-adjustment transfer device 7 for transferring the water, the rotation of the depth-adjustment transfer device 7 is rotated by a predetermined rotation until the depth detection device 10 detects an appropriate depth of the cut culm. A control device 11 for controlling the change to the high-speed rotation is provided, and after the traveling of the traveling device 14 is started backward or after the traveling is stopped and the handling depth control is restarted, the traveling device 14 travels the predetermined distance (K). Until the predetermined time (H) elapses, or until the predetermined depth (H) elapses. The configuration of the culms feeder Combine characterized in that a control unit 11 for controlling the constant rotation speed rotation.

[0006]

According to the present invention, the harvesting operation of the pilgrim culm by the combine is performed by cutting the pilgrim culm by the reaper 3 at the front of the traveling device 14 of the combine. Whether the handling depth of the grain stalk being transported to the rear upper portion by the device and the handling depth adjusting transfer device 7 or the like and being transported by the handling depth detection device 10 provided near the transfer end portion is the deep handling side, Or a shallow handling side is detected, and based on the detection result, the handling depth adjustment transfer device 7 provided during the transfer is adjusted by the control device 11 to adjust the handling depth. Movement is controlled to the shallow-hand side if it is detected as a fish, and to the deep-hand side if it is detected as a shallow-hand side. Is transferred to the threshing machine 9 at a standard handling depth, and is threshed while being pinched and transferred in the threshing machine 9 to be threshed. Screened of grain in the body it is temporarily stored to the combine.

[0007] Until the harvesting operation is started and the handling depth detection device 10 detects the standard handling depth, which is the appropriate handling depth of the grain stalk being transported, the handling depth is provided during the transport. In addition to adjusting the rotation, the rotation of the handling depth adjusting transfer device 7 to be transferred is controlled to be changed to a predetermined rotation high speed rotation, and the grain stalk is transferred at a high speed by the handling depth adjusting transfer device 7 and supplied to the threshing machine 9.
When the standard handling depth is detected, the rotation is restored to a predetermined rotation, transferred at a predetermined speed, and supplied to the threshing machine 9. Also, after the traveling device 14 starts traveling backward and stops traveling again, the traveling device 14 travels a predetermined distance (K) or a predetermined time (H) after the handling depth control is restarted. Until the rotation, the rotation of the depth adjusting / transporting device 7 is controlled to be changed to a predetermined high-speed rotation, and the grain culm is transported at a high speed by the depth adjusting / transporting device 7 and supplied to the threshing machine 9. Alternatively, when the traveling of the predetermined distance (K) ends or the lapse of the predetermined time (H) ends, the rotation is restored to the predetermined rotation, and the grain stalk is transferred at a predetermined speed and supplied to the threshing machine 9.

[0008]

When the pillows are cut at the four corners of the field,
In many cases, forward running, stopping, reverse running, etc., are repeatedly performed, and the handling depth adjusting transfer device 7 is often greatly deviated from an appropriate position. You can quickly return to the position.
Thereby, the stalk of the cereal stalk at the time of taking over the stalk can be prevented, and the handling depth of the cereal stalk to be supplied to the threshing machine 9 is supplied at an appropriate depth, so that the threshing performance is reduced. Can be prevented.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. The reaper 3 provided at the front of the traveling device 14 of the combine 1 is raked by the raking device 4 sequentially provided from the lower front part to the upper rear part. The harvested culm is cut and the culm is transferred to the culm transfer device 6
The threshing is carried out by the feed chain 12 and the holding rod 13 of the threshing machine 9 which is transferred to the upper part by the handling depth adjusting transfer device 7 and the supply transfer device 8 and is mounted on the upper side of the traveling platform 2. The threshing machine 9 is supplied to the threshing machine 9 and threshing during the nipping and transferring in the threshing machine 9. The handling depth of the grain culm supplied to the threshing machine 9 is detected by a handling depth detecting device 10 provided near the transfer end of the reaper 3, and based on the detection result, the handling depth adjustment transfer is performed. In order to adjust the handling depth of the grain stalk being transported by the device 7, the handling depth adjusting transfer device 7 is configured to be vertically adjusted by the control device 11, and the control device 11 adjusts the handling depth. This is a configuration for controlling the rotation speed of the transfer device 7.
This rotation speed control method will be illustrated and described.

A traveling device 14 having a pair of right and left traveling crawlers 14a traveling on the soil surface is disposed below the traveling platform 2 of the combine 1 and a threshing machine mounted on the traveling platform 2 above. At the right side in plan view of 9, the harvested grain culm is clamped between the feed chain 12 and the clamping rod 13,
This is a configuration in which a grain storage tank 9a for collecting and temporarily storing threshed and sorted kernels that have been threshed while being transported inside is installed.

Behind the grain storage tank 9a, a discharge support cylinder 16 internally provided with a vertical transfer spiral 16a for discharging the grains stored in the grain storage tank 9a to the outside of the machine is rotated in a substantially vertical posture. A discharge auger 17 is provided at the upper end of the discharge support tube 16 so as to be movably supported, and has a discharge spiral 17a that discharges grains to the outside of the machine over the entire length of the combine 1 in a contractible manner. It is a configuration that is arranged in the front-rear direction so as to be able to contract, rotate up and down, and turn left and right freely.

At the front of the threshing machine 9 and on the right side of the reaper 3, an operating device 19 for operating, adjusting, starting, and stopping the components of the combine 1 and a cockpit 19 on which a pilot rides.
The engine 18 is mounted on the upper surface of the traveling chassis 2 below the cockpit 19a, and at the rear,
This is a configuration in which a grain storage tank 9a is provided. The threshing machine 9, the reaper 3, the engine 18, the traveling device 14, and the like constitute the body 1 a of the combine 1.

In the culm transfer path formed by the feed transfer device 8 which is trailing behind the reaper 3, a threshing machine 9 is brought into contact with the cut culm which is cut and transferred.
This is a configuration provided with a cereal stalk sensor 8b that detects the presence or absence of cereal stalk supply. A vehicle speed sensor 15a for detecting a traveling vehicle speed based on the output rotation speed is provided in a transmission path in a traveling transmission case 15 mounted on a front end portion of the traveling chassis 2, and the vehicle speed sensor 15a Is configured to detect the traveling distance from the traveling speed detected by the vehicle.

The reaper 3 is provided with a support rod 21 inclined from the lower front part to the upper rear part as shown in FIGS. 3 to 6, and a support pipe rod 20 is provided at the upper end of the support rod 21 in the left-right direction. The support pipe rod 20 is rotatably supported by a support device 22 provided on the upper surface of the traveling chassis 2.

The reaper 3 is configured to be rotatable up and down with respect to the soil surface around the support pipe rod 20 by the operation of the telescopic cylinder 23 driven by hydraulic pressure.
As shown in FIGS. 3 to 6, the reaper 3 sequentially includes a narrow guide 24a and a weeding body 24b for separating the raised culm and a raising device 25 for raising the separated cereal stem.
And each rake star wheel 4a which rakes the stem side of the raised cereal stem, and each rake lug belt 4 which rakes the tip side
b, a cutting blade device 5 for cutting the stalked grain, a stock transfer chain 6a for transferring the stock side of the harvested grain stalk, and a tip lug for transferring the tip side. Based on the detection results of the grain culm transfer device 6 including the attached transfer chain 6b and the depth detection device 10 for detecting the front end position of the grain culm to be transferred, the supply depth of the grain culm supplied to the threshing machine 9 is deeply handled. A forward / reverse rotation speed-changing depth motor 7c for vertically moving the depth adjustment transfer chain 7b with the rotation metal 7a for adjusting and controlling to the knurled side or the shallow handle side as a rotation center; Potentiometer 7 for detecting the adjustment position of the depth adjustment transfer chain 7b
d and the like, and a transfer end device 7 composed of
This is a configuration in which a supply transfer device 8 provided with a supply transfer chain 8a formed in a square shape is provided.

The handling depth detecting device 10 is provided above the tip guide cover 26 as shown in FIG. 3, and whether the ear of the harvested culm transferred above the tip guide cover 26 is the deep handling side, Deep handling detection rod 27a for detecting whether it is on the shallow handling side
And a shallow handling detection rod 27b are provided rotatably. When the detection rods 27a and 27b are pressed and rotated by the grain stem, the ON / OFF switch type deep / shallow sensors 28a and 28b are individually turned on. Transfer chain 7b for adjusting the handling depth of the device 7
Is controlled to move the grain stalk being transported to the deep-hand side or the shallow-hand side, and thresh the grain stalk at a standard handling depth that is an appropriate handling depth.

As shown in FIGS. 3 to 6, the reaper 3 is provided with a support rod 21 provided in the front-rear direction so as to be inclined upward from the lower front part to the upper rear part for supporting the reaper 3 and the upper end of the support rod 21. The structure comprises a support pipe rod 20 provided in the left and right direction and a support device 22 for rotatably supporting the support pipe rod 20. The mowing machine 3 is configured to move vertically about the support pipe rod 20 as a center of rotation.

At the front of the raking device 4 of the reaper 3, the weeding body 24 is provided with a front grain culm sensor 29a for detecting the presence or absence of a grain culm to be squeezed. The rear culm sensor 29b is provided below the vicinity of the start end. In addition, a configuration in which a lodging sensor 30 for detecting the standing state of the erected grain culm is provided at the front of the raising device 25 is provided.

The operation device 19 includes a manual switch 31a for deep handling, which manually changes the depth transfer chain 7b of the depth adjusting transfer device 7 to the deep handling side or the shallow handling side; A manual switch 31b is provided, and a main transmission lever 32 for switching the traveling speed of the traveling device 14 on the forward traveling side and for switching the traveling device to the reverse traveling side is provided. The switching operation of the main transmission lever 32 for the reverse traveling side is provided. The ON / OFF switch type reverse position sensor 3 for detecting this switching operation
2a.

The operating device 19 is provided with an upright switching dial 33 for switching the upright posture of the trichomes from the standard upright posture to the falling upright posture without stopping the traveling device 14 during the harvesting operation. Configuration. The operation device 19 has a configuration in which the control device 11 is provided.

As shown in FIG. 5, the control device 11 operates a deep / shallow handling manual switch 31a, 31b, a main shift lever 32, a synchro switch 36a, an up / down switching dial 33, and a potentiometer. 7d, a grain sensor 8b, a vehicle speed sensor 15a, and a deep / shallow sensor 28.
a, 28b, front / rear grain culm sensors 29a, 29b, lodging sensor 30, reverse position sensor 32a, etc., and the detected numerical values are input from input circuit 34a to CPU 34b. By the input, the CPU 34
b, through the output circuit 34c, the handling motor 7c, the engine 18, the telescopic cylinder 23 and the like are started, stopped, and controlled in the number of revolutions. And the control of the rotation speed and the like. This is a configuration in which switching of the traveling device 14 between forward and reverse traveling, traveling start, traveling stop, traveling speed, and the like are performed. or,
This is a configuration in which the control of the start of raising and lowering of the reaper 3 and the stop of raising and lowering are performed. Further, when an abnormality occurs in each section, an alarm is issued from the alarm device 35.

The rotation speed control of the depth transfer chain 7b of the depth adjustment transfer device 7 will be described. The harvesting operation is started by the reaper 3 of the combine 1 as shown in FIG. Until the sensor 28a and the shallow handling sensor 28b detect a standard handling depth at which the handling depth of the grain stalk is an appropriate handling depth, the handling depth transfer chain 7b of the handling depth adjusting transfer device 7 The rotation speed is controlled by the controller 11 to control the handling motor 7c so that the normal rotation speed becomes a predetermined rotation high speed rotation.
The rotation speed is changed and controlled, and the grain culm to be transferred is transferred quickly.

Further, as shown in FIG.
The reverse travel is set by the operation of or the re-travel is started after the travel is stopped, and after the handling depth control is restarted, the travel device 14 travels a predetermined distance (K) or a predetermined time (K). H) Until the passage, the rotation speed of the depth transfer chain 7b of the depth adjustment transfer device 7 is controlled by the control device 11 to control the depth motor 7c in order to set the normal rotation speed to a predetermined high speed rotation. It is configured to control the change and transfer the culm to be transferred quickly.

The handling depth adjusting and transferring device 7 is quickly returned to an appropriate position to prevent the stalk of the stalks from being spilled at the time of handover, and the handling depth of the stalks to be supplied to the threshing machine 9 is quickly set to an appropriate depth. It is a configuration that As shown in FIG. 7, control of the rotation speed of the depth transfer chain 7b of the depth adjustment transfer device 7 is based on the detection value detected by the potentiometer 7d that detects the adjustment position of the depth control transfer device 7 as shown in FIG. The culm sensor 8b no longer detects the cereal culm and the detection value at a certain distance (L1) position before the culm is turned off and the cereal culm is supplied to the threshing machine 9 and the predetermined value when the culm sensor 8b is turned off. The detected value at the position (L2) is compared, and if the result of the comparison is equal to or greater than the fixed value (M), the handling depth of the grain stalk is determined by the deep handling sensor 28a and the shallow handling sensor 28b of the handling depth detection device 10. Until the standard handling depth, which is the appropriate handling depth, is detected, until the handling depth control is restarted and a predetermined time (H) elapses, or the traveling device 1
Until the vehicle 4 travels a predetermined distance (K), the rotation speed of the handling depth transfer chain 7b is changed by controlling the handling depth motor 7c by the control device 11 so that the normal rotation speed becomes the predetermined rotation high speed rotation. It is configured to control and transfer the culm to be transferred quickly.

As a result, when the position of the handling depth transfer chain 7b changes due to mowing at the end of mowing or the like, the handling depth often does not become an appropriate handling depth when entering the next uncut area. According to the present invention, this can be quickly returned to an appropriate position, and a stable mowing operation can be performed.

As shown in FIG. 8, the amount of adjustment of the handling depth of the grain stalk is controlled according to the set value so as to correspond to the position of the handling depth transfer chain 7 b of the handling depth adjusting transfer device 7. Is set, and the adjustment amount is ON-OF of the pulse.
This is a configuration in which the F time is set or the change amount of the potentiometer 7d is used.

Thus, conventionally, the handling depth transfer chain 7
Regardless of the position of b, pulse output for a constant ON time was performed. However, depending on the position of the handling depth transfer chain 7b,
The operation amount of the handling depth transfer chain 7b is different, and it may not be possible to quickly return to the proper position, or the hunting may occur due to excessive movement. However, according to the present invention, these can be prevented.

In a configuration in which the position of the depth transfer chain 7b of the depth adjustment transfer device 7 is detected by a potentiometer 7d, and the depth transfer chain 7b is controlled to the deep side or the shallow side. As shown in FIG.
A deep-hand switch 31a for moving the position b to the deep-hand side, a shallow-hand switch 3 for operating the shallow-hand side
1a, and these manual switches 31a,
When the simultaneous ON operation of 31b is performed, this handling depth transfer chain 7b
Is moved to an appropriate handling depth position. In order to prevent erroneous operation, this function may be configured to have no function during the harvesting operation.

As a result, the handling depth transfer chain 7b is difficult to see from the cockpit 19a, which makes it difficult to position the chain. However, the present invention has improved this.
The position of the depth transfer chain 7b of the depth adjustment transfer device 7 is detected by a potentiometer 7d, and as shown in FIG. 10, it is detected that the detection result has changed by a predetermined value or more within a set predetermined time, Alternatively, when it is detected that the value has changed by a predetermined value or more within a predetermined time set to the shallow handling side, the alarm device 3
5 is turned on and an alarm is issued.

As a result, the occurrence of an abnormality in the handling depth detecting device 10 means that the handling device is in a deep handling condition or a shallow depth condition, whereby the threshing machine 9 is overloaded and the threshing performance is reduced. In some cases, the particles were reduced or untreated particles were generated, but these could be solved by the present invention.

A mode for controlling the operation range of the depth transfer chain 7b of the depth adjustment transfer device 7 is provided as shown in FIG. 11, and the operation range is the average value of the depth transfer chain 7b during the mowing operation. The configuration is limited to within a certain value.
Further, a configuration may be adopted in which the length of the set culm is limited to within a certain value.

As a result, whether the handling depth control has been conventionally provided or not.
Or in the mode of cutting, and when there are many weeds,
The handling depth control may become unstable. In this case,
Although the work was performed with the control turned off, the operation burden on the pilot operator was sometimes increased. However, according to the present invention, by limiting the control range, even when working in a field with many weeds, it was possible to handle Since the operation can be performed with the deep control, the operability of the pilot operator can be improved.

A synchro switch 36a is provided for switching the synchro device 36 from the standard falling state to the severely falling state without stopping the traveling device 14 during the harvesting operation with the combine 1, and operating the same. In the configuration for performing the deep control, as shown in FIG.
When the traveling device 14 travels a predetermined distance (K) after this operation, or when a predetermined time (H) has elapsed after this operation, the handling depth transfer chain 7b is moved to the deep handling side or the shallow handling side. In this configuration, the response of the control for controlling the speed is increased. For this purpose, for example, the output cycle is shortened, the delay of the deep / shallow handling sensor 28a, 28b is shortened, or the handling depth transfer chain 7b is deeply handled for a predetermined time, and This is a configuration in which change control is performed to the shallow side.

As a result, when the synchronizer 36 switches from the standard mode to the lodging mode during the harvesting operation, the transfer posture of the grain stalk changes, and the handling depth sometimes changes. Could be solved. The front culm sensor 29a is in the OFF state because the cereal culm is no longer transferred and no longer detects the cereal culm, and the rear culm sensor 29b is in the ON state when the cereal culm sensor 29b detects the cereal culm being transferred. Between the ON state and the ON state, the response of the handling depth control includes the OFF time (S2) of the output cycle for controlling the change of the handling depth transfer chain 7b to the deep handling side or the shallow handling side as shown in FIG. In this configuration, the predetermined time is shorter than the OFF time (S1) of the output cycle at other times. OFF time of output cycle (S3)
When the change control of the handling depth transfer chain 7b is not necessary.
FF time. In addition to the above control, the delay of the deep / shallow sensors 28a and 28b may be shortened.

Thus, it is possible to prevent the stalks of the cereal stalk from being spilled at the end of cutting. When the lodging sensor 30 detects that the grain stalk is lying down and turns on, the response of the handling depth control is as shown in FIG.
Of the output cycle for controlling the change to deep or shallow
The FF time (S2) is configured to be shorter by a predetermined time than the OFF time (S1) of the output cycle at other times. The OFF time (S3) of the output cycle is an OFF time when no change control of the handling depth transfer chain 7b is required. In addition to the above control, the delay of the deep / shallow sensors 28a and 28b may be shortened.

[0036] As a result, when harvesting the lodging grain culm, the conveying posture of the grain culm is likely to be disturbed, so that the supply depth of the grain culm to the threshing machine 9 becomes too shallow or too deep. The threshing machine 9 may be over-handled, resulting in unhandled products, or the threshing machine 9 may be overloaded. However, the present invention has solved these problems.

Even if the front grain sensor 29a does not transfer the grain culm and does not detect the grain culm, and is in the OFF state, the rear grain culm sensor 29b detects the grain culm to be transported, and
In the N state, the handling depth control is continued as shown in FIG. 15, and after this, the grain culm sensor 29b no longer transfers the grain culm, no longer detects the grain culm, and after being turned off,
When the traveling device 14 travels the predetermined distance (K) or when the predetermined time (H) has elapsed (b), the handling depth transfer chain 7b
Is restored to the position of the handling depth transfer chain 7b stored at the time (a) when the previous grain culm sensor 29b is turned off.

As a result, the former culm sensor 29
When a is turned off, the grain culm shortened by mowing at the end of mowing may be spilled due to the suspension of the handling depth control, but according to the present invention, the rear grain culm sensor 29b is Until the OFF state is reached, the stalk of the grain can be prevented by continuing the handling depth control. Further, after the grain culm is transferred, the handling depth transfer chain 7b is returned to the position when the front grain culm sensor 29a is turned off, so that when entering the uncut portion, the handling depth transfer chain 7b is returned. Is no longer in a deep handling position.

[Brief description of the drawings]

Fig. 1 Time chart

FIG. 2 Time chart

FIG. 3 is an enlarged side view of the reaper.

FIG. 4 is an enlarged plan view of the reaper.

FIG. 5 is a block diagram

FIG. 6 is an overall side view of the combine.

FIG. 7 is a diagram showing another embodiment, and is a time chart.

FIG. 8 is a diagram showing another embodiment, and is a diagram showing a relationship between a detection value of a potentiometer and an operation amount per pulse.

FIG. 9 is a diagram showing another embodiment, and a time chart.

FIG. 10 is a diagram showing another embodiment, and is a time chart.

FIG. 11 is a diagram showing another embodiment, and is a time chart.

FIG. 12 is a diagram showing another embodiment, and a time chart.

FIG. 13 is a diagram showing another embodiment, and a time chart.

FIG. 14 is a diagram showing another embodiment, and a time chart.

FIG. 15 is a diagram showing another embodiment, and a time chart.

[Explanation of symbols]

 Reference Signs List 3 reaper 7 depth adjustment transfer device 9 threshing machine 10 depth detection device 11 controller 14 traveling device K predetermined distance H predetermined time

Claims (2)

[Claims] 1. A handling depth detecting device 10 for detecting a handling depth of a harvested cereal culm to be transported and supplied to a threshing machine 9 for threshing by removing the harvested cereal culm cut by the reaper 3 on the front side of the traveling device 14. A handling depth adjusting / transferring device 7 for adjusting the handling depth of the cut culm to the deep handling side or the shallow handling side based on the detection result detected by the handling depth detection device 10 and transferring the harvested culm. In the combine, there is provided a control device 11 for changing the rotation of the handling depth adjusting transfer device 7 to a predetermined high-speed rotation until the handling depth detecting device 10 detects an appropriate handling depth of the harvested grain culm. A combine grain feeding device, comprising: 2. The travel device 1 according to claim 1, wherein
4, after the vehicle starts traveling backward or stops traveling again and the handling depth control is restarted, the traveling device 14 is moved to the predetermined distance (K).
A combine grain feeding device, comprising a control device 11 for controlling the rotation of the handling-depth adjusting transfer device 7 to a predetermined high-speed rotation until the vehicle runs or a predetermined time (H) elapses.