JP4157847B2 - Combine control means - Google Patents

Description

  The present invention relates to a combine control means.

Conventionally, a pre-treatment unit is provided with a handling depth carrier body that conveys the cereals to the threshing part side so as to be able to swing up and down. A combine having a handling depth automatic control means for automatically adjusting the tip position within a certain range is known (for example, see Patent Document 1).
Japanese Utility Model Publication No. 52-45623

  However, if the above-mentioned automatic handling depth control means misdetects the start of control, the handling depth control is not performed and stable threshing work may not be performed. In other words, the cereals sometimes fall down without being inherited.

  The control means of the combine according to the present invention for solving the above-described problems is provided with a handling depth transport body 11 for transporting the cereals to the threshing section 3 side in the pretreatment section 6 so as to freely swing up and down, and the handling depth. The tip position detecting means 19 for detecting the position on the tip side of the grain pod supported by the transport body 11, and provided on the stock base side of the cereal from the tip position detecting means 19, the handling depth transport body 11 for the cereal bud. Cereal detection means 21 for detecting the distribution of the cereals, and during the detection of the cereal distribution by the cereal detection means 21, the handling depth carrier 11 is driven to swing based on the tip position detection means 19, and threshing is performed. In the combine provided with automatic handling depth control means for automatically adjusting the tip position with respect to the section 3 within a certain range, the cereal pretreatment unit 6 is provided on the upper side of the cereal distribution from the cereal detection means 21. Is provided, and the detector 23 detects the grain to the pre-processing unit 6. In the case where the cedar detection means 21 does not detect the distribution in the handling depth carrier 11 of the cereal after a predetermined time has elapsed from the detection, the position of the cereal position by the handling depth automatic control means is detected. The first feature is that an operation control means for operating automatic adjustment is provided.

  Further, during the detection of introduction of the cereal by the detector 23, the cereal detection means 21 switches to a state in which the distribution of the cereal in the handling depth carrier 11 is not detected. A second feature is that an alarm output means for outputting an alarm when a position on the tip side of the cocoon is detected is provided.

  In the state in which the introduction of the cereal into the pre-processing unit is detected by the detector, the cereal detection means usually treats the cereal when the cereal has exceeded the transport time until it reaches the cereal detection means. The flow in the transport body is detected. However, when the cereal detection means is out of order or when the cereal is transported at a position where it is not detected by the cereal detection means, the cereal detection means is The handling depth of the bag does not detect the circulation in the transport body. As a result, the adjustment of the position of the tip of the cereal with respect to the threshing portion is not automatically performed.

  On the other hand, according to the structure of the present invention configured as described above, when a predetermined time elapses after the start of introduction of the cereal into the pretreatment unit by the detector, the cereal detection means conveys the handling depth of the cereal. Even in the case where the circulation in the body is not detected, the operation control means activates the automatic adjustment of the cereal position by the automatic treatment depth control means. In addition to being able to perform stable threshing work by adjusting the treatment depth according to the state of the cocoon, there is an effect that the chopped cereal meal is stably passed to the threshing part side and threshing work is performed.

  On the other hand, during the detection of the introduction of the cereal by the detector, the cereal detection means switches to a state in which the distribution of the cereal in the handling depth transport body is not detected, and the tip position detection means on the tip side of the cereal is As a case where the position is detected, the possibility that the culm detection means has failed or malfunctioned, and the possibility that the culm is not detected by the culm detection means due to malfunction of the tip position detection means, etc. There may be a bug.

  On the other hand, by providing an alarm output means, the warning notifies the malfunction or malfunction of the cereal detection means and the possibility that the cereal is not in contact with the cereal detection means. There is an advantage that a person or the like can recognize the possibility of the above-mentioned problem or the like, and can quickly perform a combine check or the like.

  1 and 2 are a side view and a plan view of a combine that employs the present invention. A threshing unit 3 is provided on a traveling machine body 2 including left and right crawler traveling devices 1, and a driver's seat 4 is provided on the front side of the traveling machine body 2 so as to be covered with a cabin 5. A pre-processing unit 6 is provided in front of the driver's seat 4.

  In the pre-processing unit, as shown in FIG. 1 to FIG. 3, the scraper for picking up the cut straw and transporting it backward as shown in FIGS. , The handling depth transport body 11 that adjusts the handling depth of the cereals and conveys it to the threshing part side, the guide that inherits the cereal straw from the handling depth transport body 11 and guides it to the feed chain 12 of the threshing part A transport unit 13 and the like are provided.

  And this combine harvests the grain straw by the pre-processing part 6 like the past, collects the harvested grain straw by the scooping transport body 9 and sends it to the handling depth transport body 11, and the handling depth transport body 11 A structure in which the handling depth is adjusted and conveyed to the threshing unit 3 side, the feed chain 12 of the threshing unit 3 is inherited via the guide conveyance unit 13, and the cereal is supplied to the threshing unit 3 by the feed chain 12 and threshed. It has become.

  The handling depth transport body 11 is a chain tine type tip transport section 14 that transports while holding the head side of the grain straw, and a chain-type stock transport body that transports while holding the stock base side of the grain straw. 16. The tip transport unit 14 is fixed to the frame (pre-processing frame) 6a side of the pre-processing unit 6, and the stock transport unit 16 is supported on the pre-processing frame 16 side so as to be swingable up and down.

  A swing fulcrum (not shown) of the stock transporter 16 is provided on the front side of the stock transport 16 and the stock transport 16 swings up and down on the rear side. Then, by adjusting the stock position of the culm relative to the pretreatment unit 6 by swinging the stock transport unit 16 up and down, the head position of the culm relative to the threshing unit 3 is adjusted within a certain range, thereby making the culm length longer. Accordingly, the cereal can be supplied to the threshing portion (feed chain) at an appropriate handling depth.

  However, the tip conveying section 14 is fixed to the preprocessing frame 16 side. For this reason, the tip side of the cereal is transported toward the guide transport unit 13 by the tip transport unit 14 while the amount of insertion into the tip transport unit 14 is changed as the stock transport unit 16 swings.

  The pretreatment frame 16 is fixedly provided with a motor 17 that swings the stock transport unit 16 up and down. The motor 17 is driven so as to supply the cereals to the feed chain 12 with an appropriate handling depth. Thus, the stock transporter 16 can be swung. The operation of the motor is controlled by the control unit 18 shown in FIG.

  The control unit 18 automatically controls the motor 17 in accordance with the length of the harvested culm and automatically supplies the culm to the threshing unit 3 (feed chain 12) at an appropriate working depth. A control program is stored. Based on the program, the control unit 18 functions as a handling depth automatic control means for performing the handling depth automatic control.

  The handling depth automatic control means will be described. On the pretreatment frame 16 side, a tip position detecting means 19 for detecting the tip position of the grain pod supported by the handling depth transport body 11 is provided in the vicinity of the tip transport section 14.

  The tip position detection means 19 is composed of two contact tip detection sensors 22 made up of limit switches and the like. The both-tip detection sensor 22 is attached in a state separated by a predetermined distance in the cocoon length direction of the cereal. The tip detection sensor 22 is turned ON when the cereal is in contact. The position of the spike detection sensor 22 is set such that when the spike is positioned between the spike detection sensors 22, the cereal is supplied to the threshing unit 3 at an appropriate handling depth.

  On the other hand, a handling depth main sensor 21 is provided as a cereal detection means that is located closer to the culm stock side than the tip position detection means 19 and detects that the cereal is circulating in the handling depth carrier 11. It has been. The handling depth main sensor 21 is a contact type composed of a limit switch or the like, and detects the distribution of the cereal by contact of the cereal. The handling depth main sensor 21 is turned ON when the cereal is in contact with the cereal.

  In addition, a culm introduction sensor 23 is provided on the above-described scraping carrier 9 side as a culm introduction detecting means for detecting that the harvested culm has been introduced into the preprocessing unit 6. The culm introduction detection sensor 23 is a contact type composed of a limit switch or the like, and detects the introduction of the culm by the contact of the culm that is scraped into the scraping carrier 11. The cereal culm introduction sensor is turned ON when the reaping of the cereal is started and the harvested culm introduced into the pre-processing unit 6 comes into contact.

  And the said tip detection sensor 22, the handling depth main sensor 21, and the grain introduction | transduction sensor 23 are connected to the input side of the above-mentioned control part 18, as FIG. 4 shows. The motor 17 is connected to the output side of the control unit 18.

  And the control part 18 functions as an automatic handling depth control means based on the program of the above-mentioned automatic handling depth control, drives the motor 17 so that the tip of the cereal is located between the both tips detection sensor 22, Automatic handling depth control. In other words, the motor 17 is driven so that the stock tip detection sensor 22 is turned on and the stock tip detection sensor 22 is turned off, and the tip position is adjusted within a certain range between the tip detection sensors 22. .

  Thereby, regardless of the culm length, the grain tip is automatically adjusted within a certain range with respect to the tip position with respect to the threshing unit 3 and supplied to the threshing unit 3 with an appropriate handling depth. The control unit 18 is connected with a handling depth automatic switch 24, and the control unit 18 performs the handling depth automatic control only when the handling depth automatic switch 24 is ON.

  However, the control unit 18 stores an operation control program for calling the above-mentioned automatic handling depth control. The control unit 18 functions as an operation control unit that controls the start of the automatic handling depth control based on the operation control program, and starts the automatic handling depth control according to each condition.

  The operation flow of the operation control by the operation control means based on the operation control program will be described. In the following, it is assumed that the handling depth automatic switch 24 is ON. When the automatic switch 24 is OFF, the operation depth automatic control is not performed by stopping the operation control by the operation control means or the automatic operation depth control itself.

  As shown in the flowchart of FIG. 5, the operation control first checks the culm introduction sensor 23 in step S <b> 1, proceeds to step S <b> 2 when ON, and checks the state of the culm introduction sensor 23 at the previous check. To do. If the culm introduction sensor 23 is OFF at the previous check, the introduction of the culm has been started, and the process proceeds to step S3, where the state of the handling depth main sensor 21 is checked. If the grain introduction sensor is OFF in step S1, the process proceeds directly from step S1 to step S3.

  If the handling depth main sensor is OFF in step S3, the process proceeds to step S4, the transport time delay timer is set, and the process returns. Further, if the handling depth main sensor is ON in step S3, the process proceeds to step S5, the transport time delay timer is set, and then the process proceeds to step S6, where the above-mentioned handling depth automatic control is executed, and the process returns.

  The set of the transport time delay timer is because a predetermined transport time is required from the time when the cereal passes through the culm introduction sensor 23 until it passes through the main handling depth sensor 21, and immediately after the start of cutting. Steps S4 and S6 are set in order to cope with the feeding delay during cutting and the like in step S4 in order to cope with the conveyance delay.

  That is, at the beginning of cutting, immediately after the culm introduction sensor 23 is turned from OFF to ON, the handling depth main sensor 21 is OFF because of the above-described transport time. For this reason, the transfer time delay timer is set and the process returns, and the state of each sensor is checked again. On the other hand, if the handling depth main sensor 21 is turned on immediately after the cereal introduction sensor 23 is turned on from OFF, there may be a case where a temporary omission occurs. In this case, automatic handling depth control is performed. Therefore, steps S5 and S6 are set for this purpose.

  On the other hand, if the culm introduction sensor 23 is ON at the time of the previous check in step S2, that is, if the reaping operation is being performed and the cereal is continuously introduced into the preprocessing unit 6, the process proceeds to step S7, where the handling is performed. The state of the depth main sensor 21 is checked. If the handling depth main sensor 21 is ON in step S7, the normal threshing operation is in progress, the process proceeds to step S8, the conveyance time delay timer is set, and then the process proceeds to step S9, in which the handling depth automatic control is performed. Execute and return.

  If it is determined in step S7 that the handling depth main sensor 21 is OFF, the process proceeds to step S10 to check whether or not the transport time delay timer set as described above has expired. If the timer has expired in step S10, the process proceeds to step S11, where an alarm is notified, the automatic handling depth control is executed, and the process returns. If the timer has not expired in step S10, the process returns from step S10.

  This is because, when the normal culm introduction sensor 23 is continuously ON, the handling depth main sensor 21 remains OFF as long as it is within the conveying time until the cereal reaches the main depth sensor 21 as described above. . However, if this transport time is exceeded, the cereal will reach the handling depth main sensor 21, and the handling depth main sensor 21 will be ON. However, when the handling depth main sensor 21 is out of order or when the cereal is transported at a position where it does not come into contact with the saw depth main sensor 21, for example, the handling depth transport body 11 is in the shallowest handling position. In a case where the cutting operation of the short culm is performed as it is, the main depth sensor 21 is not turned on even after the culm introduction sensor 23 is turned on.

  However, even in the above case, the cereals are actually distributed, so the handling state deteriorates unless automatic handling depth control is performed, or, in the case of the short culling process, the cereals are transferred to the guide transport unit 13. In other words, the guide transport unit 13 may not be inherited and may fall. For this reason, in this embodiment, even if a predetermined time (set time of the conveyance time delay timer) elapses after the culm introduction sensor 23 is turned on by the forced automatic handling depth actuating means comprising step S10 and step S10, the handling depth Even if the main sensor 21 remains OFF, the automatic handling depth control is executed.

  As a result, even in the above case, automatic handling depth control is automatically started, the handling depth is adjusted according to the state of the cereal, and stable threshing work can be performed, and the harvested cereal is fed stably. Threshing work is carried over to the chain. In addition to the motor 17, a horn 26 and an alarm lamp 27 are also connected to the output side of the control unit 18. When automatic handling depth control is performed by the forced automatic handling depth actuating means, the horn 26 or This is notified by the lighting of the alarm lamp 27.

  On the other hand, the control unit 18 is also configured to generate an alarm based on the following alarm operation means. The control unit 18 stores an alarm program for generating an alarm, and the control unit 18 functions as an alarm operating unit based on the alarm program.

  As shown in FIG. 6, the alarm operation by the alarm operation means first checks the culm introduction sensor 23 in step S <b> 1, and proceeds to step S <b> 2 if ON, and checks the state of the handling depth main sensor 21. And when the working depth main sensor 21 is ON, since the harvested cereal is a normal threshing operation in a state where it has already been transported to the treated depth transport body 11, the process proceeds to step S3, and the working depth delay timer is set. Return and do not generate an alarm.

  On the other hand, when the handling depth main sensor 21 is OFF in step S2, there is a possibility that the handling depth main sensor 21 has failed or malfunctioned, and that the cereal is not in contact with the handling depth main sensor 21. There are possibilities. However, there may be a case where a breakthrough occurs temporarily.

  Note that, as a case where the cereal is not in contact with the main processing depth sensor 21, there is a case where the tip detection sensor 22 is clogged with dust or straw and the tip detection sensor 22 remains on. If the tip detection sensor 22 is turned on, the motor 17 tries to move the cereal to the stock side until the tip detection sensor 22 on the tip side is turned off, but the tip detection sensor 22 is turned on. This is because the motor 17 moves the grains to the stock market side infinitely.

  Therefore, if the handling depth main sensor 21 is OFF in step S2, the process proceeds to step S4 to check whether or not the handling depth delay timer has expired. If the timer has not expired, step Return from S4.

  If this is a temporary omission, the handling depth main sensor 21 is turned on in step S2 of the flow after the return, the handling depth delay timer is set, and the process returns and no alarm is generated. Automatic handling depth control is also continued. That is, the handling depth delay timer is set to a time that can cope with the temporary omission.

  On the other hand, if the timer has expired in step S4, it is not a temporary omission, so the process proceeds to step S5 to check whether the tip detection sensor 22 is ON or OFF. If at least one of the tip detection sensors is ON, the process proceeds to step S6, the horn 26 is sounded as an alarm, the alarm lamp is turned on, and the automatic handling depth control is stopped. If both the tip detection sensors are OFF, the process returns.

  When the above-described alarm operation causes problems such as the possibility that the above-mentioned main processing depth sensor 21 has failed or malfunctioned, and that the cereals are not in contact with the main processing depth sensor 21. If possible, the possibility of this malfunction is notified by an alarm, and the automatic handling depth control is stopped.

  As a result, the operator or the like can recognize the possibility of the above-mentioned problem and the like, and can quickly perform a combine check or the like. Note that when the automatic handling depth control is executed by the above-mentioned forced automatic handling depth actuating means of the above-mentioned operational control due to the malfunction, the possibility of the malfunction is notified by an alarm by the alarm operation, The automatic control is stopped and the automatic handling depth control is not continued.

  On the other hand, this handling depth conveyance body 11 conveys the stock side by the stock transport unit 16 and the tip side by the stock transport unit 14 as described above. However, since the stock transport unit 16 mechanically swings up and down, there is a certain amount of vertical movement. For this reason, during normal conveyance, the cereals are pulled up by the tip conveyance unit 14, and the stock transporting unit 16 is pulled up.

  However, for example, when the distribution amount of cereals decreases at the end of cutting, the culm is not pulled up by the tip transporting unit 14, and the stock transporting unit 16 thus falls. In some cases, the cereal may fall out of the handling depth conveying body due to the fall. For this reason, the controller 18 forcibly deeply drives the motor 17 so as to forcibly move the cereal to the tip side near the end of cutting, thereby preventing the stock source transport unit 16 from falling. Is stored.

  Based on the forced deep handling operation program, the control unit 18 functions as a forced deep handling operation means, drives the motor 17 forcibly deep handling as described above near the end of cutting, Prevent falling.

  As shown in the flowchart of FIG. 7, the flow of forced deep handling operation by the forced deep handling operation means first checks the main working depth sensor 21 in step S1, and proceeds to step S2 if it is ON. Then, the state of the cereal introduction sensor 23 is checked. If the grain introduction sensor 23 is ON, the process proceeds to step S3, a sensor delay timer is set, and the process proceeds to step S4. When the forced deep handling drive of the motor 17 is set, the forced deep handling is performed. Stop driving and return.

  If the grain introduction sensor 23 is OFF in step S2, the process proceeds to step S5 to check whether the sensor delay timer has expired. When the timer has expired, since the culm near the end of cutting is in the state of being introduced into the handling depth carrier 11, the process proceeds to step S6, and forced deep handling driving is performed for a preset fixed time. Operate and return.

  With the forced deep handling operation, the grain depth introduction sensor 23 is turned off while the handling depth main sensor 21 is on, the introduction of the harvested grain straw into the pre-processing unit is terminated, and the sensor delay timer is terminated. When the culm near the end of cutting is introduced into the handling depth transport body 11, forced deep handling driving is started, so even if the amount of cereal circulated decreases, Can be prevented and stable threshing work can be performed.

  If the sensor delay timer does not expire, the forced deep handling drive is not performed, so that it is possible to prevent the inconvenience that the forced deep handling drive is erroneously performed when a temporary punching occurs.

It is a side view of the combine which employ | adopted this invention. It is a top view of the combine which employ | adopted this invention. It is a principal part top view of a pre-processing part. It is a block diagram of a control part. It is an operation | movement flowchart figure of an operation control. It is a flowchart figure of a warning action | operation. It is a flowchart figure of a forced deep handling operation | movement.

Explanation of symbols

DESCRIPTION OF SYMBOLS 3 Threshing part 6 Pre-processing part 11 Handling depth conveyance body 19 Tip position detection means 21 Handling depth main sensor (grain husk detection means)
23 Grain introduction sensor (detector)

Claims (2)

  The pretreatment unit (6) is provided with a handling depth transport body (11) for transporting the cereals to the threshing section (3) side so as to be swingable up and down, and the grain supported by the handling depth transport body (11). The tip position detecting means (19) for detecting the position of the tip of the cocoon, and the tip position detecting means (19) provided on the pestle stock side, and in the handling depth carrier (11) of the pestle A corn sprout detecting means (21) for detecting circulation is provided, and the handling depth carrier (11) is controlled based on the tip position detecting means (19) during the cereal circulatory detection by the culm detecting means (21). In a combine that is driven to swing and has automatic handling depth control means that automatically adjusts the tip position relative to the threshing part (3) within a certain range, the cereal detection means (21) is better at distributing cereals. The detector (23) which detects introduction | transduction to the pre-processing part (6) of a cereal is provided in the side, and this detector (23) is a pre-processing part 6) When the introduction of the cereal into the cedar is detected and the cereal detection means (21) does not detect the distribution in the handling depth transport body (11) of the cereal after a predetermined time has elapsed from the detection, The combine control means provided with the operation control means for operating the automatic adjustment of the grain position by the depth automatic control means.   During the detection of the introduction of the cereal by the detector (23), the cereal detection means (21) switches to a state where the distribution of the cereal in the handling depth carrier (11) is not detected, and the tip position under the condition The combine control means according to claim 1, further comprising an alarm output means for outputting an alarm when the detection means (19) is in a state of detecting the position on the tip side of the cereal.

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