JP4413002B2 - Combine depth control device - Google Patents

Description

  The present invention provides a conveying device that supports and conveys the harvested cereal toward the threshing portion and the transmission speed is synchronized with the shift of the vehicle body, and changes the support position in the cocoon length direction of the harvested cereal in the conveying device. Then, the handling depth adjusting means for adjusting the handling depth in the threshing portion, and the tip position detection location on the lower side of the delivery than the handling depth adjustment location by the handling depth adjustment means is conveyed by the conveying device. The tip position detecting means for detecting whether or not the tip position of the harvested grain pod is in an appropriate range, and the tip position of the harvested grain pod detected by the tip position detecting means is in the appropriate range. The present invention relates to a combine depth control device including control means for controlling the operation of a handle depth adjusting means.

In such a combine depth control, conventionally, when the tip position detecting means detects that the tip position of the harvested cereal rice is out of the appropriate range, the direction of positioning the tip position of the harvested cereal rice cake in the appropriate range. It is configured to control the operation of the treatment depth adjusting means so as to operate until the tip position of the harvested cereal rice bran is in an appropriate range. (For example, refer to Patent Document 1).
JP 2002-204612 A

  However, in Patent Document 1 described above, the tip position detection location is located away from the handling depth adjustment location on the lower conveyance side, and the harvested cereal is transported from the handling depth detection location to the tip location detection location. Since the conveyance time is required, the next treatment depth adjustment process is performed based on the detection information of the tip position detection means at the tip position detection location immediately after the handling depth adjustment processing is performed at the handling depth adjustment location. The support position on the upper transfer side of the harvested cereal meal is adjusted before the harvested cereal meal whose support position has been changed by the adjustment processing amount in the previous handling depth adjustment process is delivered to the point detection position. Since the next handling depth adjustment process will be performed based on the tip position of the harvested grain culm that has not been changed in quantity, hunting is caused by unnecessarily moving the handling depth adjustment means.

  Therefore, after performing the previous treatment depth adjustment process, after performing a stop process to stop the operation of the treatment depth adjustment means until a predetermined fixed waiting time elapses, the next treatment depth adjustment process Although it is conceivable that the configuration is performed based on the detection result of the tip position detection means, in this configuration, the set waiting time in the stop process is a predetermined fixed waiting time. The conveying speed of the conveying device is configured to synchronize with the traveling speed of the vehicle body, and the time required for the harvested cereal to be conveyed from the depth adjustment position to the tip position detection position is If the set waiting time is set to a short time for high speed driving, the support position is changed by the previous processing depth adjustment process during low speed driving. Cutting The stop process ends before the cereals are transported to the tip position detection location, and the harvested cereals whose support position has been set and adjusted by the previous handling depth adjustment processing reach the tip location detection location. Hunting occurs due to the previous and subsequent treatment depth adjustment processing, and if the set waiting time is set to be long for low speed running, the support position is changed by the treatment depth adjustment processing during high speed running. Even after the harvested cereal grains were transported to the tip position detection point, the stop process was continued more than necessary, and the handling depth could not be adjusted quickly.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to accurately and promptly control the depth of handling even when the transport speed of the transport device is synchronized with the traveling speed of the vehicle body. It is in the point of providing the handling depth control means of the combine which can be performed.

The combined depth control device of the present invention includes a conveying device that supports and conveys the harvested cereal toward the threshing portion, and the conveyance speed is synchronized with the traveling speed of the vehicle body, and the harvested cereal cocoon in the conveying device. Depth adjustment means for adjusting the treatment depth in the threshing portion by changing the support position in the cocoon length direction, and the tip position detection on the lower side of the conveyance from the treatment depth adjustment position by the treatment depth adjustment means The tip position detection means for detecting whether or not the tip position of the harvested cereal cocoons conveyed by the transport device at a location is within an appropriate range, and the tip position of the chopped grain pods detected by the tip position detecting means A combine depth control device comprising a control means for controlling the operation of the handle depth adjusting means so as to be located in the appropriate range,
In the first characteristic configuration, when the control means detects that the tip position of the harvested grain pod is out of the appropriate range by the tip position detecting means, the tip position of the harvested grain pod is located in the appropriate range. performs threshing depth adjusting process be operated at setting adjustment amount of the threshing depth adjusting means in a direction to its after threshing depth adjusting process is performed, the conveying speed detection for detecting the conveying speed of the conveying device Based on the detection information of the means, the harvested cereal meal set according to the transport speed of the transport device is shortened when the transport speed of the transport device becomes faster and becomes longer when the transport speed of the transport device becomes slower. Even if it is detected by the tip position detecting means that the tip position of the harvested cereal is out of the appropriate range until the set waiting time until it is transported from the adjustment point to the tip position detecting portion elapses, the handling is performed. of depth adjustment means Stops the operation of the ironing side and depth ironing side, characterized in that it is configured to perform stop processing.

In other words, the stop process after the handling depth adjustment process is shortened as the transport speed of the transport apparatus increases based on the detection information of the transport speed detecting means for detecting the transport speed of the transport apparatus, and the transport speed of the transport apparatus Harvested cereals that are transported from the handling depth adjustment point set according to the transport speed of the transport device to the tip position detection point so as to become longer as the speed becomes slower are transported from the handling depth adjustment point to the tip position detection point Until the set waiting time elapses, the tip position detecting means is configured to stop the operation of the handling depth adjusting means even if it is detected that the tip position of the harvested cereal is out of the proper range. Therefore, regardless of the transport speed of the transport device, the cutting position that has been set and adjusted in the support position in the previous handling depth adjustment process is transferred to the tip position detection point, and the tip position of the cutting position is within the proper range. Octopus Is detected by the tip position detection means, the next handling depth adjustment processing is performed, and the harvested cereal rice cake whose setting adjustment amount has been changed by the previous handling depth adjustment processing is changed to the tip position detection location. Hunting due to the subsequent handling depth adjustment process before it reaches will no longer occur, and the next handling depth adjustment process will be the same as the previous handling depth adjustment process regardless of the transport speed of the transport device. Since the next handling depth adjustment processing can be performed at the same time or almost simultaneously with the cutting cereal grains whose support position has been changed by the set adjustment amount is transferred to the tip position detection point, the handling depth adjustment should be performed quickly. Therefore, it is possible to provide a combined handling depth control device capable of accurately and quickly performing the handling depth control even when the conveyance speed of the conveyance device is synchronously shifted in accordance with the travel shift of the vehicle body. It came to.

  In the second feature configuration, in addition to the first feature configuration, the tip position detection means sets a tip interval detection means and a strain origin side detection means for detecting the presence / absence of a grain pod in a cocoon length direction of the harvested culm. The setting adjustment amount is an amount corresponding to half of the setting interval.

  That is, when it is detected by the tip position detection means that the tip position of the harvested grain culm is out of the proper range, the handling depth adjustment means is set in a direction to position the tip position of the harvested grain culm in the proper range. By performing the depth-of-handling adjustment process that operates at an amount equivalent to half of the interval, the tip position of the harvested cereal cocoon that was out of the proper range will be displaced near the center of the proper range, and the tip position of the chopped cereal cocoon Can be made difficult to deviate from the proper range.

The third feature configuration is characterized in that, in addition to the first or second feature configuration, the transport speed detecting means is configured to detect the transport speed by detecting the transport device.

  That is, since the conveyance speed detection means is configured to detect the conveyance speed by detecting the conveyance apparatus, it can be detected more accurately than an apparatus that indirectly detects the conveyance speed of the conveyance apparatus from the axle or the like. It is possible to perform the depth control accurately.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a combined depth control device according to the present invention will be described below with reference to the drawings.
As shown in FIG. 1, the combine is provided with a pair of left and right crawler traveling devices 1, a threshing device (corresponding to a threshing portion) 2 for threshing the harvested cereal rice cake, a front portion of a vehicle body equipped with a control portion 3, etc. The cutting part 4 which cuts off planted cereals such as wheat and supplies it to the threshing device 2 as the harvested cereals is connected to the horizontal axis P so as to be movable up and down.

  The mowing unit 4 raises a raising device 5 that causes a planted culm, a cutting blade 6 that cuts the root of the planted culm and makes it a harvested culm, and collects the harvested cereal and transports it backward. Auxiliary conveying device 7 to be cut, a vertical conveying device (corresponding to a conveying device) 9 for transferring the harvested cereal rice cake received from the auxiliary conveying device 7 to the threshing feed chain 8 of the threshing device 2 by changing it to a sideways posture at the conveying terminal end, etc. And is configured to swing up and down around the horizontal axis P by driving the lifting cylinder 10.

  Next, the power transmission system of the combine will be described. As shown in FIG. 2, the driving force of the engine E is transmitted to the continuously variable vehicle speed transmission 21 via the belt transmission, and the output after the speed change of the vehicle speed transmission 21 is transmitted to the crawler via the mission case 22. It is transmitted to rotate the traveling device 1. The driving force of the engine E is also transmitted to the threshing device 2 via the threshing clutch 24. The output after shifting of the vehicle speed transmission 21 is transmitted to the cutting unit 4 via the transmission case 22 and the one-way clutch 23, and the power after shifting of the vehicle speed transmission 21 is transmitted to the cutting unit 4. Thus, the driving speed of the cutting unit 4 is configured to shift in synchronization with the traveling speed of the vehicle body. That is, the vertical conveying device 9 in the cutting unit 4 is configured to be synchronously shifted in accordance with the traveling shift of the vehicle body. When the traveling speed of the vehicle body increases, the conveying speed of the vertical conveying device 9 also increases, and the vehicle travels. When the speed decreases, the conveying speed of the vertical conveying device 9 also decreases.

  The vertical transport device 9 includes a stock transport device 9a for holding and transporting the stock side of the grain straw, a tip transport device 9b for locking and transporting the stock tip side of the grain straw, and a tip guide plate 9c. A vertical conveying device is supported by a handling depth motor (corresponding to a handling depth adjusting means) M1, which is supported by an electric motor with a gear-type reduction mechanism and is swingably supported around the same axis as the dynamic axis P. By adjusting the swing of 9, the support position in the cocoon length direction of the harvested cereal rice cake at the time of delivery from the auxiliary transport device 7 to the vertical transport device 9 is changed to adjust the handling depth in the threshing device 2. It is configured. That is, when the vertical conveying device 9 is swing-adjusted by the handling depth motor M1, the receiving support position of the harvested cereal mash from the auxiliary conveying device 7 of the vertical conveying device 9 is changed in the cocoon length direction, and the threshing device 2 The treatment depth in the treatment room can be changed and adjusted.

  And in the detection location on the lower side of the grain culm conveyance path from the treatment depth adjustment location (the location where the harvested cereals are transferred from the auxiliary conveyance device 7 to the vertical conveyance device 9) by the treatment depth motor M1, the vertical conveyance device 9 is provided with tip position detecting means S for detecting whether the tip position of the harvested grain culm conveyed by 9 is within an appropriate range. The tip position detection means S is a head-side detection sensor (corresponding to the tip-side detection means) S1 for detecting the presence or absence of grain pods and a stock-source-side detection sensor (corresponding to the strain-source-side detection means) S2. They are arranged side by side at a predetermined interval in the direction. The tip side detection sensor S1 and the stock side detection sensor S2 are each configured to be a switch type that swings and activates when the cereal comes into contact, and when the cereal comes into contact and is turned on. The presence of corn straw is detected, and the absence of corn straw is detected when the corn straw is in an off state where it is not in contact.

Next, the control means 100 will be described. As shown in FIG. 3, in the control means 100 using a microcomputer, the stock sensor 14 provided at the upper end of the transport in the vertical transport device 9 to detect the presence or absence of cereals or the stock in the vertical transport device 9 Information detected by a transport speed sensor (corresponding to a transport speed detecting means) 19 for detecting the transport speed of the vertical transport apparatus 9 by detecting the action on the drive sprocket of the original transport apparatus 9a, the tip side sensor S1, and the stock side sensor S2 Is entered. On the other hand, the control means 100 outputs a drive signal for the handling depth motor M1.
The control means 100 determines that the tip position of the harvested grain pod is detected by the tip position detection means S when the stock sensor 14 is on and the threshing clutch 24 is in the transmission range. It is comprised so that the handling depth control which controls the action | operation of the handling depth motor M1 may be performed so that it may be located in.

  Next, handling depth control will be described. In the depth control, the tip position of the harvested grain pod detected by the tip position detecting means S is such that the stock side sensor S2 as shown in FIG. The operation of the handling depth motor M1 is controlled so as to be located in the appropriate range in the off state, and the handling depth is always adjusted to an appropriate state regardless of the length of the harvested culm.

  Then, when it is detected by the tip position detection means S that the tip position of the harvested grain culm is out of the proper range, the handling depth motor M1 is moved toward the direction in which the tip position of the harvested grain culm is located in the proper range. A handling depth adjustment process that operates with the set adjustment amount is performed, and then the cutting cereal culm detects the tip position from the handling depth adjustment location based on the detection information of the conveyance speed sensor 19 that detects the conveyance speed of the vertical conveyance device 9. In the form of repeatedly performing the stop process of stopping the operation of the handling depth motor M1 until the harvested cereal meal conveyed to the location is conveyed from the handling depth adjustment location to the tip position detection location, It is configured to control operation.

  The handling depth control will be described in detail with reference to the flowchart of FIG. 5. The tip position detecting means S detects whether the tip position of the harvested cereal is within an appropriate range, and the tip position detecting means S cuts the cutting edge. When it is detected that the tip position of the grain pod is out of the proper range, the handling depth motor M1 is operated with the set adjustment amount so as to displace the tip position of the harvested grain pod in the proper range. The handling depth adjustment process is performed. That is, both the tip side sensor S1 and the stock side sensor S2 as shown in FIG. 4 (b) are turned on, and the tip position of the harvested cereal pods deviates from the proper range to the deep handling side by the tip position detecting means S. When it is detected that the handling depth motor M1 is actuated by the set adjustment amount, the vertical conveying device 9 is adjusted to swing to the gentle inclination side, and the support position in the cocoon length direction of the harvested cereal is set as the set adjustment amount tip. The handling depth adjustment process adjusted to the side is performed, and the support position of the harvested cereal rice cake in the vertical conveying device 9 is adjusted to the shallow handling side by the set adjustment amount. Further, both the tip side sensor S1 and the stock source side sensor S2 as shown in FIG. 4 (c) are turned off, and the tip position of the harvested cereal is moved from the proper range to the shallow handle side by the tip position detecting means S. When it is detected that the handling depth motor M1 is actuated with the set adjustment amount, the vertical conveying device 9 is swing-adjusted to the gentle inclination side, and the support position in the cocoon length direction of the harvested cereal culm is set to The handling depth adjustment process adjusted to the original side is performed, and the set adjustment amount is adjusted to the deep handling side with respect to the support position of the harvested cereal culm in the vertical conveying device 9. The set adjustment amount is an amount corresponding to half of a predetermined interval that the tip side sensor S1 and the stock side sensor S2 are separated from each other. In order to adjust, the handling depth motor M1 operates for a set time (for example, 200 msec).

  Then, after the handling depth adjustment process is performed, the operation of the handling depth motor M1 is stopped until a set waiting time elapses until the harvested cereal is conveyed from the handling depth adjustment location to the tip position detection location. Perform stop processing. That is, until the set waiting time elapses after the treatment depth adjustment process is performed, the tip position detection means S handles the tip position of the harvested cereal from the appropriate range as shown in FIG. In a state where the tip of the harvested cereal is removed from the proper range, the state where the tip of the harvested cereal is removed from the appropriate range to the shallow handling side is transported by the transport device at the tip position detection point. Even if it is detected that the tip position of the harvested grain culm is not in the proper range, the stopped state of the handling depth motor M1 is maintained, and the support position in the cocoon length direction of the harvested grain culm is not changed. Then, after the set waiting time has elapsed since the handling depth adjustment process has been performed, when it is detected that the tip position of the harvested grain culm that is transported by the transport device in the tip position detection location is not in the proper range, A handling depth adjustment process is performed. Regardless of whether or not the set waiting time has elapsed, when the tip side sensor S1 is turned on and the stock source side sensor S2 is turned off, the tip depth detection means S is stopped and the handling depth control is stopped. Alarm is output.

  The set waiting time is changed according to the conveyance speed of the vertical conveyance device 9, and the detection information of the conveyance speed sensor 19 and the distance information from the handling depth adjustment location of the control device 100 to the tip position detection location. From this, the time until the harvested cereal meal is conveyed from the treatment depth adjustment location to the tip position detection location is determined, and this time is set as the set waiting time. Accordingly, the set waiting time becomes shorter when the conveying speed of the vertical conveying device 9 becomes faster and becomes longer when the conveying speed of the vertical conveying device 9 becomes slower. If the time until it is conveyed to the detection location is 300 msec, the operation of the handling depth motor M1 is stopped for 300 msec as a set waiting time until the harvested cereal is conveyed from the handling depth adjustment location to the tip position detection location Is 400 msec, the operation of the motor depth motor M1 is stopped for 400 msec as the set waiting time.

[Another embodiment]
(1) In each of the above embodiments, the handling depth adjusting means is constituted by a handling depth motor constituted by an electric motor with a gear type reduction mechanism, but is constituted by other adjusting means such as a hydraulic cylinder. May be.

(2) In each of the embodiments described above, the setting adjustment amount is an amount corresponding to half of the setting interval. However, the setting adjustment amount may be set as appropriate, such as 1/3 or 3/4 of the setting interval.

(3) In each of the above embodiments, the conveying speed detecting means is configured to detect the conveying speed of the vertical conveying apparatus directly by detecting the conveying speed of the vertical conveying apparatus. You may comprise so that the conveyance speed of a conveying apparatus may be detected indirectly.

Combine front view Schematic showing the power transmission structure of the combine Block diagram of control configuration The figure which shows the conveyance state of the harvest cereal rice cake Flow depth control flowchart

2 Threshing device (threshing part)
9 Vertical conveyor (conveyor)
19 Transport speed sensor (transport speed detection means)
100 Controller M1 Handling depth motor (Handling depth adjustment means)
S tip position detecting means S1 tip side sensor (tip side detecting means)
S2 Stockholder side sensor (Stockholder side detection means)

Claims (3)

A conveying device that supports and conveys the harvested cereal rice cake toward the threshing unit, and the conveyance speed is synchronized with the traveling shift of the vehicle body;
A handling depth adjusting means for adjusting the handling depth in the threshing part by changing the support position in the cocoon length direction of the harvested cereal rice cake in the conveying device,
Tip position for detecting whether or not the tip position of the harvested cereal cocoon transported by the transport device is within an appropriate range at the tip position detection position on the lower side of the transport than the control depth adjustment position by the handle depth adjusting means Detection means;
A combine depth control device comprising: a control means for controlling the operation of the depth control means so that the tip position of the harvested grain pod detected by the tip position detection means is located in the appropriate range; There,
When the control means detects that the tip position of the harvested grain culm is out of the appropriate range by the tip position detecting means, the control means moves the tip position of the harvested grain culm toward the appropriate range. It performs threshing depth adjusting process to operate the threshing depth adjusting means in setting the adjustment amount, after the threshing depth adjusting process has been performed, based on the detection information of the transport speed detecting means for detecting the conveying speed of the conveying device The cutting cereal culm set according to the conveying speed of the conveying device is shortened when the conveying speed of the conveying device becomes faster and becomes longer when the conveying speed of the conveying device becomes slower. Even if it is detected by the tip position detecting means that the tip position of the harvested cereal is out of the proper range until the set waiting time until it is transported to the detection location, the handling depth adjusting means is shallow. Handling side and deep handling Threshing depth control device for combine configured to perform a stop process for stopping the operation to the side. The tip position detection means is configured by juxtaposing the tip side detection means and the strainer side detection means for detecting the presence or absence of grain pods in a state where a set interval is spaced in the cocoon length direction of the harvested grain culm,
The combine handling depth control device according to claim 1, wherein the set adjustment amount is an amount corresponding to half of the set interval. The combine handling depth control device according to claim 1 or 2, wherein the transport speed detecting means is configured to detect the transport speed by detecting the transport device.

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