JP3449062B2 - Combine harvesting culm transporter - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for transporting harvested culms of a combine. 2. Description of the Related Art When the mowing section rises above a predetermined height, the mowing section and the threshing feed chain are stopped from driving, and when the mowing section is lowered to the original predetermined height position, the mowing section and the threshing feeder are stopped. Techniques for resuming the driving of Dot Chien are known. [0003] In wet fields and the like, the running cloth
If the mowing operation is performed in a state in which the raft has sunk, the mowing unit must be raised upward by the amount of the subsidence of the machine, so such an ascending position may be higher than the drive stop position of the mowing unit. Since the harvesting operation cannot be performed, a grain culm sensor is provided to detect the presence or absence of a grain culm to be harvested. Both the feed chain and the feed chain continue to be driven, and when there is no grain culm, both are stopped. However, when the cutting clutch is disengaged and only the threshing clutch is engaged, when two workers separate into the cutting section side and the threshing section side to solve a problem such as clogging of the grain culm, the cutting section side is removed. If the operator suddenly touches the grain stalk sensor and turns it on, the threshing feed chain suddenly starts to turn off, which is dangerous. The present invention has been made to solve the above problem, and has taken the following technical measures to achieve the object. That is, according to the present invention, the mowing unit 2 and the threshing feed chain 12 are stopped from driving based on the result of raising the mowing unit 2 to a predetermined height or more, and the mowing unit 2
When the combine descends to the predetermined height position, the drive of the cutting unit 2 and the threshing feed chain 12 is restarted based on the detection result. A grain stalk sensor 21 for detecting the presence or absence of a grain stalk is provided. Of threshing clutches 13 and 15,
When only the threshing clutch 15 is engaged and the culm sensor is turned on to the cereal stalk presence detection state, the threshing feed chain is maintained in a stopped state when the mowing part is at a raised position higher than a predetermined height. It is characterized by having such a configuration. An embodiment of the present invention will be described below. The self-removing combine includes a pair of left and right traveling crawlers 1, a reaping unit 2, a threshing unit 3, a control unit 4, and the like. The cutting unit 2 includes a weeding tool 5, an apparatus 6 for raising planted grain culms, and a cutting apparatus 7, and the harvested grain culm is transported by the transport device 8 to the threshing feed chain 12 of the threshing unit 3. And this reaper 2
Is configured to be able to move up and down around a fulcrum P via a hydraulic cylinder-9. The threshing unit 3 has a handling room 11 in which a handling cylinder 10 for planting and threshing teeth is provided. One of the handling rooms 11 is a threshing fiber for holding and transferring a stem of a grain culm. -Dotiene 12
Is provided. The power of engine E is mowing clutch 13,
The power is transmitted to the mowing unit 2 via the threshing unit 3 and the power is transmitted to the threshing unit 3 via the threshing clutch 15. The cutting clutch 13 and the threshing clutch 15 are turned on and off by a cutting and threshing clutch lever (mono lever 16).
In the operation path K, the mowing and threshing clutches 13 and 15 are engaged by the (a) position operation of the mono lever 16; only the threshing clutch 15 is engaged by the (b) position operation; -: Stop). In the state with the threshing clutch 15, the handling cylinder 10,
This is a configuration in which a sorting device for threshing feed chain 12, karino, etc. is driven. The rotational power to the drive sprocket 12a for driving the threshing feed chain 12 is controlled to be turned on and off by a stop motor M via an on / off clutch 17. [0008] 18 is a position sensor for detecting the operating position of the mono lever 16, 19A is a reaping automatic stop switch,
19B is a feed chain automatic stop switch, 20 is a mowing position sensor that detects the height of the mowing part against the machine, 21 is a cereal culm sensor that detects the presence or absence of a cereal culm to be mowing, and is in the groin culm introduction path of the mowing part. It is provided in. FIG. 3 is a block diagram of the feed chain stop control unit.
The detection signals of the mono lever position sensor 18, the automatic cutting stop switch 19A, the feed chain automatic stop switch 19B, the cutting position sensor 20, and the grain sensor 21 are input via the input interface 23, and are programmed in advance. In response to the processing, a control signal is output from the output interface 24 to the feed chain stop motor M. When the mowing unit 2 is raised to a predetermined height or higher (predetermined non-working position) during the rotation of the machine, the mowing unit 2 is moved upward.
The cutting clutch 14 is turned off (the cutting automatic stop switch 1
9A) and also disconnects the intermittent clutch 17 to the threshing feed chain 12 (the feed chain automatic stop switch 1).
9B), mowing part 2 and threshing feed chain 1
This is a configuration in which the rotations of the two stop simultaneously. Also, the reaper 2
Is lowered to a predetermined working position, the driving of the cutting unit 2 and the threshing feed chain 12 is restarted. The power intermittent control for the mowing unit 2 and the threshing feed chain 12 is performed based on the detection result of the mowing position sensor 20. Harvesting. When the cereal stalk sensor 21 is in the ON state of the cereal stalk presence detection state in the state where the threshing clutch is in the state (mono lever position sensor (a) position detection), the cutting unit 2
The cutting unit 2 and the threshing feed chain 12 are both driven so that the driving state is maintained even when the stalk is in the ascending position, and both are stopped when the grain stalk absence is OFF. And reaping. Of the threshing clutches, in the state where only the threshing clutch is engaged (mono lever position sensor (b) position detection), the grain stalk sensor 21 detects O in the absence of grain stalk.
At the time of FF, the threshing feed chain 12 is configured to be driven to rotate even if the cutting unit is lowered to a predetermined cutting operation position. Further, only the threshing clutch is engaged, and the grain stalk sensor 21 is in the state of detecting grain stalk presence.
In the case of N, the threshing feed chain is maintained in a stopped state when the reaping unit is at a predetermined non-work raising position. As described above, according to the apparatus of the present invention, the cutting and threshing clutch includes only the threshing clutch, and even when the cutting clutch is not engaged, the cutting section is at a predetermined height or more. Then, threshing feed chain is stopped,
Moreover, in this state, the threshing feed chain maintains a stopped state even if the grain culm sensor is turned on. Therefore, even if an operator touches the grain culm sensor and turns on when trouble is solved, The feed chain does not start suddenly,
Work can be performed safely. An embodiment shown in FIGS. 5 and 6 will be described. In a combined feed chain stopping device equipped with a mono lever position sensor 18, a reaping automatic stop switch 19A, and a reaping position sensor 20, a mono lever
(C) Even if the mowing and threshing clutches 13 and 15 are in the "OFF" (mono lever: stop) state by the position operation,
In this configuration, the feed chain stop is controlled in accordance with the occurrence of the feed chain stop condition. Therefore, according to this means, when the cutting and threshing clutch is switched from "OFF" to "ON" the threshing clutch is stopped, it is possible to prevent the feed chain from stopping for a short time due to a delay in stopping the feed chain. Further, when the cutting and threshing clutch is switched from the "on" state of the threshing clutch to the "off" state of the cutting and threshing clutch while the feed chain is stopped, the feed chain can be prevented from moving for a short time due to inertia. Next, the embodiment shown in FIGS. 7 and 8 will be described. In a feed chain stopping device of a combine equipped with a mono lever position sensor 18, an automatic cutting stop switch 19A and a cutting position sensor 20, a cutting threshing clutch is used. When the threshing clutch is switched from the "on" position or the cutting and threshing clutch "on" position to the cutting and threshing clutch "off" position (mono lever: stop position), the feed chain is stopped for a certain period of time. The operating state is "stop" by the mono lever.
This is a configuration in which control is performed to maintain the state immediately before switching to the position. When the cutting and threshing clutch is set to "OFF" (mono lever: stop position) with the feed chain stopped, if the cutting section is quickly and immediately (shortly) lowered, and the cutting section is lowered, the feed chain stopping condition will be changed. Since the condition was not established and the feed chain stoppage was stopped, the feed chain was moved for a short time due to inertia, which was dangerous. However, as described above, the mono lever
Even if the operation is stopped, the feed chain is kept stopped for a certain period of time, so that such a problem can be solved. In the embodiment shown in FIGS. 9 and 10, a combine lever provided with a mono lever position detecting sensor 18A, a feed chain automatic stop switch 19B, a cutting position sensor 20, and a cutting and threshing clutch position detecting sensor 18B. In the dochien stop device, when the on / off state of the mowing clutch and threshing clutch becomes unknown due to abnormality of the mono lever position detecting sensor 18A and the mowing and threshing clutch position detecting sensor 18B, the on / off state of the feed chain is determined. It is configured to control to keep the sensor as it was when it became abnormal. That is, for example, when an abnormality due to a failure or the like occurs in the mono lever position detection sensor 18A, the state of the feed chain before the failure of the sensor is maintained (when the feed chain is operating, this state is maintained. Hold, and when stopped, hold this state). Therefore, according to such a configuration, it is possible to prevent troubles such as the feed chain stopping while the mowing unit is operating, or the stopped feed chain moving unexpectedly, thereby improving safety. .

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic side view of a main part of a combine. FIG. 2 is a cross-sectional view of a main part of a transmission mechanism of a threshing feed chain. FIG. 3 is a control block diagram. FIG. 4 is a flowchart. 5 is a control block diagram. FIG. 6 is a flowchart. FIG. 7 is a control block diagram. FIG. 8 is a flowchart. FIG. 9 is a control block diagram. FIG. 10 is a flowchart. DESCRIPTION OF THE REFERENCE NUMERALS 1 traveling crawler 2 cutting unit 3 threshing unit 4 control unit 5 weeding tool 6 raising device 7 cutting device 8 transfer device 9 hydraulic cylinder 10 handling cylinder 11 handling room 12 threshing feed chain 13 cutting clutch 14 Cutting clutch 15 Threshing clutch 16 Cutting threshing clutch lever (mono lever) 17 Intermittent clutch 18 Mono lever position sensor 19 Feed chain stop switch 20 Cutting position sensor 21 Grain culm sensor 22 Control unit 23 Interface - Hue - scan 24 output interface - Hue - scan

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) A01F 12/10 A01D 34/27 A01D 69/00

Claims (1)

(57) [Claim 1] Based on the result of the rise of the cutting unit 2 exceeding a predetermined height, the drive of the cutting unit 2 and the threshing feed chain 12 is stopped, and the predetermined height of the cutting unit 2 is reduced. In the combine which is configured to restart the driving of the cutting unit 2 and the threshing feed chain 12 based on the detection result at the time of descending to the height position, the culm to be cut is not included in the culm introduction path of the cutting unit 2. A grain stalk sensor 21 for detecting the presence or absence is provided. Threshing clutch 1
With only threshing clutch 15 out of 3,15,
Even when the cereal stalk sensor is turned on in the cereal stalk presence detection state, the threshing feed chain is configured to maintain a stopped state when the mowing part is at a raised position higher than a predetermined height. Combine harvesting grain culm conveying device.