JP2015231356A - General-purpose combine-harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a general-purpose combine-harvester neither impairing workability nor interrupting a risk avoiding operation in an emergency by capable of avoiding collision between a raking reel and a discharge auger, when lowering the discharge auger or lifting a header part, and continuously performing a lowering operation of the discharge auger or a lifting operation of the header part, when there is a possibility of collision between the raking reel and the discharge auger, without disabling the lowering of the discharge auger or prohibiting the lifting of the header part.SOLUTION: When there is a possibility of collision between a raking reel and a discharge auger caused by a lifting operation of a header part and a lowering operation of a discharge auger to a storage position, the raking reel is forcibly lowered to avoid the collision of both.

Description

  The present invention, after harvesting crops such as wheat, buckwheat, rapeseed, soybean, paddy rice, etc. and threshing / selecting, temporarily stores the grains in the Glen tank and discharges the grains stored in the Glen tank. The present invention relates to a general combine that is transferred to a container or the like by an auger. More specifically, the present invention relates to a general combine that prevents a collision between a take-up reel provided in a header portion (cutting portion) of the general combine and the discharge auger.

  In general, a general-purpose combiner is provided with a steering unit, a threshing unit, and a glen tank in a machine body equipped with a traveling device, and a header unit including a scraping reel, a cutting blade, a platform auger, and a feeder that are adjustable in height in front of the machine body. It can be moved up and down. In addition, the threshing unit includes a handling chamber into which the cereal that has been conveyed by the feeder and a sorting chamber provided below the handling chamber, and the cereals are shed by the handling cylinder and the receiving net provided in the handling chamber, The processed material leaked from the receiving net is sorted into grains and dust by the swing sorter provided in the sorting chamber and the sorting wind of the fan.

  Furthermore, the grain selected by the threshing unit is stored in the Glen tank, and then the grain collected in the Glen tank is transported toward the container by the discharge auger and discharged. The discharge auger is configured to be movable up and down and swivel from a storage position where the auger outlet faces on the header portion to a discharge position where the auger outlet faces on the container, and from the discharge position toward the storage position supported by the auger rest. When descending, depending on the height of the take-up reel, the auger outlet and the take-up reel may collide and both may be damaged.

  That is, if the Glen tank is full during the mowing operation, the operation is interrupted and the discharge auger is lifted from the storage position, although it is prohibited in the instruction manual, etc., and the header is raised, After moving to the container location as it is and discharging the grain, the discharge auger may be lowered again to the storage position. In that case, before the work is interrupted, the header part is lowered, the height of the take-up reel is low, and the take-up reel that has not interfered with the auger outlet becomes higher as the header part rises. When they are lowered, they collide.

  Also, when harvesting miscellaneous grains such as long-necked millet, millet, millet, etc., the harvesting operation is performed by increasing the height of the scraping reel and scraping the head with high accuracy. Therefore, when cutting these crops, the interval between the take-up reel and the auger outlet is originally reduced. Under such circumstances, when there are obstacles or the like in the field, the header part may be raised urgently to avoid collision with these obstacles. However, in that case, the take-up reel becomes higher as the header portion rises, and there is a possibility of colliding with the discharge auger in the storage position.

  Therefore, in order to avoid the collision between the take-up reel and the discharge auger when the discharge auger is lowered to the storage position or the header is raised, the relative height of the take-up reel with respect to the machine body is detected, and the scraping auger is detected. When it is detected that the take-in reel is raised above a predetermined height, the discharge auger cannot be lowered (for example, refer to Patent Document 1), and the take-up reel is raised. When it is detected that it is in the position, it is prohibited to raise the header part, or when it is detected that the header part is in the raised position, the raising of the take-up reel is prohibited, and the take-up reel is more than a predetermined height. When the header part and the take-up reel are lifted so as to become, it is known that the discharge auger is lifted and controlled (see, for example, Patent Document 2).

  Then, when the header part and / or the take-up reel exceeds a predetermined rise amount, the rise of the header part is stopped, and then the take-up reel is lowered to further separate both the take-up reel and the discharge auger ( For example, refer to Patent Document 3.) Furthermore, the discharge auger is set with two storage positions: a first storage position where the discharge auger wraps in a plan view with the take-up reel, and a second storage position where the discharge auger is not wrapped. The auger rest supported at the position is configured to be switchable to each storage position, so that the discharge auger is stored in the second storage position, thereby avoiding contact with the discharge auger due to the raising of the take-up reel (for example, , See Patent Document 4).

JP 2012-187075 A JP 2012-205540 A JP 2013-233108 A JP 2012-191898 A

  As described above, in order to avoid a collision between the take-up reel and the discharge auger, as described in Patent Document 4, the discharge auger is stored in the second storage position that does not wrap in a plan view with the take-up reel during operation. It is desirable to do. However, in order to store the discharge auger in the second storage position, it is necessary to change the storage position of the auger rest, and the switching operation is troublesome and sometimes the switching is forgotten. It is not perfect for avoiding conflicts with Therefore, the techniques of Patent Documents 1 to 3 have been proposed as suboptimal measures.

  However, as described in Patent Documents 1 to 3, when there is a possibility that the take-up reel and the discharge auger collide, in order to avoid this, the discharge auger cannot be lowered or the header portion is raised. If this is prohibited, the intended operation cannot be performed and workability is deteriorated. In addition, although prohibited in the instruction manual, etc., there is a possibility that the discharge auger may collide with a branch of a tree or an electric wire, etc. If there is an obstacle in the discharge auger or the header part cannot be lowered to avoid an emergency hazard, the discharge auger or header part may collide with these obstacles, causing serious damage. There is a risk of causing an accident.

  Moreover, as described in Patent Document 2, when the header unit and the take-up reel are lifted so that the take-up reel is at a predetermined height or more, if the discharge auger is controlled to move up, When there are obstacles, the header can be raised to avoid danger. However, it is difficult to raise the long and heavy discharge auger immediately, and conversely, raising the discharge auger may cause an unexpected situation such as collision with a branch. Cannot recommend immediately.

  Therefore, according to the present invention, when the discharge auger is lowered or the header portion is raised, collision between the take-up reel and the discharge auger can be avoided and the take-up reel and the discharge auger collide. When there is a possibility, the lowering operation of the discharge auger or the raising operation of the header part can be continued without disabling the lowering of the discharge auger or prohibiting the raising of the header part. It is an object of the present invention to provide a general purpose combine that does not impair the performance and does not hinder the danger avoidance operation in an emergency.

  In order to solve the above-described problems, the present invention firstly provides a control unit, a threshing unit, and a Glen tank in a machine body equipped with a traveling device, and a scraping reel, a cutting blade, and a platform auger whose height is adjustable in front of the machine body. In the general-purpose combiner that is provided with a header portion that can be moved up and down, the Glen tank is provided with an auger that discharges the collected grains, and the discharge auger is directed from the storage position facing the header portion toward the discharge position. On the other hand, if the take-up reel may collide with the discharge auger when the header section is raised or the discharge auger is lowered to the storage position, the control device is forced. It is characterized by being lowered to avoid collision between the two.

  Secondly, the present invention memorizes the height before lowering of the take-up reel when forcibly lowering the take-up reel, and there is no possibility that the take-up reel collides with the discharge auger. Is characterized in that the control device is raised to the stored height of the take-up reel. Thirdly, the present invention is characterized in that the descending speed when the take-in reel is forcibly lowered is slowed when not working. Further, the present invention is fourthly configured such that when the descending speed when the scraping reel is forcibly lowered is slowed, the ascent speed of the header section or the descending speed of the discharge auger is slowed down. It is characterized by being.

  And fifthly, the present invention is configured such that the forced lowering of the take-up reel is prohibited during non-working, and the header portion raising operation or the discharge auger lowering operation is disabled. It is characterized by. In addition, according to the present invention, sixthly, the storage position of the discharge auger is configured to be changeable to a second storage position off the header, and the storage position of the discharge auger is changed to the second storage position. In this case, the configuration is such that the forcible lowering of the take-up reel is not performed.

  According to the general-purpose combine of the present invention, the control device forcibly causes the take-up reel to collide with the discharge auger when the header portion is raised or the discharge auger is lowered to the storage position. Since it is configured to be lowered to avoid collision between the two, it is possible to prevent the take-up reel and the discharge auger from colliding when the discharge auger is lowered or the header portion is raised. Can do. Also, when there is a possibility that the take-up reel and the discharge auger collide with the lowering operation of the discharge auger to the storage position or the header part raising operation, the lowering operation of the discharge auger or the header part is continued. Therefore, the operation intended by the operator can be performed without interruption, so that the workability is not impaired, and the lowering operation of the discharge auger and the header portion performed to avoid the collision with the obstacle are performed. Since the ascending operation is not hindered, serious damage accidents can be prevented in advance.

  Further, according to the general-purpose combine of the present invention, when the take-up reel is forcibly lowered, the height before the take-up reel is lowered is stored, and there is no possibility that the take-up reel collides with the discharge auger. In this case, since the control device is configured to raise the stored height of the take-up reel, it is not necessary to readjust the height of the take-up reel when resuming the cutting operation. The harvesting operation can be efficiently performed by scraping the tip with high accuracy at the height of the scraping reel.

  Furthermore, in general-purpose combiners, it is recommended that cereals that have been hand-harvested in the headland or spilled during harvesting are harvested on the uncut chopsticks. In some cases, direct entry into the platform is performed. Also, if the culm is rolled up by the tines of the scraping reel and scattered on the header part during harvesting, or if the culm is wound around the scraping reel, etc., these removal operations must be performed. Sometimes. Then, these operations may be performed while the auxiliary worker stops traveling the aircraft, and without the operator knowing the surroundings of the header part without checking it, for example, the grain from the Glen tank It can not be said that the discharge auger is not lowered to the storage position after the discharge is completed.

  However, in such a case, if the take-up reel is automatically lowered by the above-described configuration, there is a risk of giving a danger to the auxiliary worker. In addition, the same situation may occur due to an unexpected rise of the header portion. Therefore, according to the general-purpose combiner of the present invention, the descending speed when the take-in reel is forcibly lowered is configured to be slow when the machine is stopped and the mowing operation is not performed. Further, when the descending speed when forcibly lowering the take-up reel is slowed, the ascending speed of the header part or the descending speed of the discharge auger is slowed down. Therefore, even when the auxiliary worker is performing the above-described work, it is possible to notice the operation of each of these slowed portions and quickly leave the periphery of the header portion to avoid danger.

  In addition, according to the general-purpose combine of the present invention, the forcible lowering of the take-up reel is prohibited during non-working when the airframe is stopped and the mowing operation is not performed, and the header part is raised or the discharge auger is lowered. Configure to disable operation. And if comprised in this way, the danger at the time of the auxiliary worker performing the above-mentioned work can be avoided fundamentally.

  Furthermore, according to the general purpose combine of the present invention, the storage position of the discharge auger is configured to be changeable to the second storage position that is off the header, and the storage position of the discharge auger is changed to the second storage position. In such a case, since it is configured not to forcibly lower the take-up reel, it is possible to similarly avoid the danger when the auxiliary worker is performing the above-described work, and When harvesting miscellaneous grains such as millet, millet, millet, etc., it is possible to prevent collision between the take-in reel and the discharge auger simply by changing the discharge auger to the second storage position. Further, except for long crops, it is freed from the trouble of switching the storage position of the discharge auger, and the cutting operation can be performed efficiently.

It is a side view of a general purpose combine. It is a top view of a general purpose combine. It is a side view of the general purpose combine which shows the state which raised the pick-up reel to the maximum. It is a side view of the general purpose combine which shows the state which raised the header part to the maximum. It is a side view of the general purpose combine which shows the state which raised the pick-up reel and the header part to the maximum. It is a side view of the general purpose combine which shows the state which raised the discharge auger to the maximum. It is the perspective view seen from the diagonally forward side of the auger rest switched to the 1st storage position. It is the perspective view seen from the diagonally rear side of the auger rest switched to the 1st storage position. It is the perspective view seen from the diagonal front side of the auger rest switched to the 2nd storage position. It is the perspective view seen from the slanting back side of the auger rest switched to the 2nd storage position. It is a schematic diagram which shows the turning operation | movement range of a discharge auger. It is a control block diagram concerning collision prevention of a take-in reel and a discharge auger. It is a main flowchart regarding the collision prevention of a take-in reel and a discharge auger. It is a flowchart of contact prevention control. It is a flowchart of the contact prevention control of 2nd Example. It is a flowchart of reel return control. It is a flowchart of reel raising / lowering control.

  Embodiments of the present invention will be described with reference to the drawings. As shown in FIG. 1, the general-purpose combiner includes a left and right crawler type traveling device 1 and a rectangular frame-shaped body frame 3 provided above a track frame 2 of the traveling device 1. The traveling device 1 is attached to be movable up and down by a hydraulic cylinder for posture control (not shown). Further, a threshing unit 4 for performing threshing and sorting of crops is provided on the left side in the advancing direction of the machine body frame 3, and a steering unit 5 and a grain tank 6 for storing grains are provided on the right and left sides. Further, in front of the threshing unit 4 and the control unit 5, a header unit (reaping unit) 7 for harvesting and transporting the crop to the threshing unit 4 is provided. An engine is mounted between the control unit 5 and the Glen tank 6, and the engine serves as a power source for driving the crawler traveling device 1, the threshing unit 4, the Glen tank 6, the header unit 7, and the like.

  Here, the configuration of each part will be described in more detail. The header portion 7 provided on the front side of the machine body is configured by integrally connecting a feeder house 8, an auger frame 9, and a reel frame 10. Among them, the auger frame 9 is provided with a platform 11 formed by curving an iron plate, and a columnar auger 12 (platform auger) extending in the left-right direction is mounted on the platform 11 so as to be rotatable. . Further, left and right dividers 13 and reciprocating cutting blades 14 are provided at the front portion of the auger frame 9. Further, in the feeder house 8 formed in a box frame shape, the left and right transport chains 18 are wound between the rear drive sprocket 16 attached to the drive shaft 15 and the front drum 17, and the left and right transport chains 18. A feeder F is provided in which a plurality of slats 19 are horizontally mounted with a predetermined interval therebetween.

  Further, the reel frame 10 is provided with a take-up reel R, and the take-up reel R is a polygonal shaft in a side view that rotates integrally with the drive shaft that is rotatably supported at the left and right ends of the reel frame 10. And left and right rotating supports 20 having a shape (hexagonal shape in the embodiment). Further, a plurality of tine attachment rods 21 extending in the left-right direction are rotatably mounted on the apex portions of the left and right rotation supports 20, and each tine attachment rod 21 is spring-type tine 22 at predetermined intervals. Is attached in a drooping manner. At one lateral outer side of the rotation support body 20 is provided a posture holding rotating body 23 that rotates around an axis that is deviated from the axis of the drive shaft, and each vertex of the posture holding rotating body 23 is provided. By connecting the pivotal support body 24 provided on the one side and one side end of the tine attachment rod 21 via a link, the tine 22 is always held in the downward direction regardless of the rotation of the rotary support 20.

  In addition, the reel frame 10 is pivotally supported at the front ends of the left and right swing arms 25 pivotally supported on the upper portion of the auger frame 9, and the reel frame 10 is pivotally supported with one end attached to the feeder house 8. By operating the hydraulic cylinder 26 to expand and contract, the position of the take-up reel R can be adjusted back and forth with respect to the auger frame 9 via the swing arm 25. Further, an elevating hydraulic cylinder 27 is provided between the middle of the reel frame 10 and the auger frame 9, and the take-up reel R is attached to the auger frame 9 by extending and contracting the hydraulic cylinder 27. You can adjust the height up and down.

  And the header part 7 comprised as mentioned above is rotatably supported by the front part of the body frame 3 centering | focusing on the drive shaft 15 of the said feeder F, and between the feeder house 8 and the body frame 3 between it. The posture can be changed between a state in which the front side of the header portion 7 is lowered and a state in which the header portion 7 is raised by the expansion and contraction operation of the provided lifting hydraulic cylinder 28. Further, the power transmitted from the engine to the drive shaft 15 of the feeder F through a threshing clutch and a mowing clutch (not shown) is transmitted to the feeder F to drive the transport chain 18 and is further not shown from the drive shaft 15. The power is transmitted to the platform auger 12, the cutting blade 14, and the take-up reel R through a transmission device such as a sprocket, chain, reel / cutting blade clutch, continuously variable transmission, etc., thereby driving each part of the header section 7. .

  Therefore, when the aircraft is run with the header portion 7 lowered, the planted cereal culm in the field is divided into a cutting target and a non-cutting target by the left and right dividers 13, and among them, the setting crop that is to be cut The scissors are cut by the cutting blade 14 while being scraped into the platform 11 by the scraping reel R. Further, the culm scraped into the platform 11 is laterally fed to the front of the feeder house 8 by the platform auger 12, and the culm laterally fed to the feeder house 8 is further slat 19 attached to the transport chain 18. The whole of the harvested corn straw is thrown into the threshing unit 4 while passing through the lower part of the feeder house 8 while being locked to the threshing unit 4.

  In the header portion 7, a headlamp 29 is attached to the front end of the reel frame 10, and a direction indicator 30 and a rearview mirror 31 are attached to a stay 32 erected from the auger frame 9. Reference numeral 33 denotes a cover that covers the side of the platform 11, and reference numeral 34 denotes a cover that covers the transmission portion of the take-up reel R. Further, a ladder 35 is erected from the body frame 3 on the side of the rear side of the feeder house 8.

  Further, the threshing unit 4 is configured to move upward and downward by a rotor cover 36 that can be opened and closed upward via a hinge, a rotor side cover 37 that can be opened and closed laterally, and a detachable threshing cover (front cover 38 and rear cover 39). The left side is covered, and the back is covered with a dust cover 40 that can be opened and closed freely. Further, an auger 41 is provided behind the grain tank 6 to discharge the grains stored in the grain tank 6 toward a container or the like. The control unit 5 includes a seat 42, a front panel 43 provided in front of the seat 42, a multi-steering lever 44 projecting from the front panel 43 (raising and lowering the header unit 7 and steering the aircraft), a seat In addition to a side panel 45 provided on the side of 42, a travel shift lever 46 for operating a hydrostatic continuously variable transmission provided on the side panel 45, a meter panel, a monitor, a switch for automatic control and manual control The operation tools such as the volume, volume, and various operation levers are concentrated.

  Further, the threshing unit 4 will be described in more detail. The threshing unit 4 includes a handling chamber 47 into which the cereals conveyed by the feeder F are placed, and a sorting chamber 48 formed below the handling chamber 47. . Of these, a handling cylinder 49 that rotates around the longitudinal axis of the machine body is pivoted in the handling chamber 47, and an inlet for receiving the cereals conveyed by the feeder F is provided below the handling cylinder 49. Following the receiving plate, an arc-shaped receiving net is provided so as to cover the lower periphery of the handling drum 49. Then, the cereals thrown into the handling chamber 47 are conveyed while being crushed to the rear side of the machine body by the handling cylinder 49, and are rubbed against the receiving net while circulating around the outer circumference of the handling cylinder 49 to perform the grain removal process. Is called.

  On the other hand, the sorting chamber 48 formed on the lower side of the handling chamber 47 is provided with a swing sorting body 50. The swing sorting body 50 is moved back and forth by a swing mechanism including a link and a drive link. It is supported so as to be swingable, and the processed material is sorted by specific gravity by swinging back and forth. Further, below the swing sorting body 50, there are provided a red fan 51 and a turbo fan 52 that generate sorting winds directed toward the swing sorting body 50, and processing is performed by the sorting wind generated by these fans 51 and 52. The object is wind-selected in the swing sorter 50. Then, the grains that have leaked from the rocking sorter 50 fall onto the spiral 53 first. The second object falls on the second spiral 54.

  Further, dust such as sawdust transferred to the terminal end of the swing sorter 50 is discharged out of the machine from a discharge port 55 provided at the rear part of the machine body, along with wastes conveyed to the rear end part of the receiving net. . The grain horizontally fed by the first spiral 53 is fed into the Glen tank 6 by a bucket conveyor and an upper horizontal spiral (not shown), and the second product horizontally fed by the second spiral 54 is shown in the figure. The slat conveyor and the reducing horizontal helix are returned to the front part of the handling chamber 47 and again subjected to the degranulation process, or the lid provided in the middle of the reducing horizontal helix cylinder is opened, and the second thing is swung and sorted 50 It can be dropped again and re-sorted.

  Next, the relationship between the auger 41 that discharges the grain stored in the above-described Glen tank 6 toward a container or the like and the header portion 7 will be described. First, the discharge auger 41 is provided with a vertical helix for transferring grains following a horizontal helix installed at the bottom of the Glen tank 6, and this vertical helix is roughly divided into a lower side and an upper side helix. Are covered with vertical pipes 56 and 57. Further, the base portion of the lower vertical pipe 56 is rotatably erected in a case of a horizontal spiral terminal provided behind the Glen tank 6, and the vertical pipe 56 is rotationally driven by an auger motor 58. The base portion of the upper vertical pipe 57 is connected to the upper end of the lower vertical pipe 56 via a gear case 59 so as to be raised and lowered (lifted and lowered), and the auger lift cylinder 60 is driven to move up and down in the vertical direction.

  In addition, the midway part of the upper vertical pipe 57 that has fallen is placed on an auger rest 61 provided between the engine and the threshing part 4. The augerest 61 includes a support 61a that is fixed to the upper surface of a bracket 64 that connects the threshing part frame 62 and the upper part of the engine cover frame 63, and a reinforcing member 61b that extends obliquely upward from the front end of the support 61a and the support 61a. The slide part 61c is supported and extended in the horizontal direction, and the receiving part 61d is slidably supported by the slide part 61c. The receiving portion 61d is substantially V-shaped upward, and is configured such that a vertical pipe 57 on the upper side of the discharge auger 41 can be placed thereon. Further, an elastic member such as rubber or resin is attached to the upper surface of the receiving portion 61d, and even when the vertical pipe 57 is placed, it is possible to prevent generation of vibration noise during traveling.

  Further, the receiving portion 61d is fixed to the slide portion 61c with a pin 65 and an R pin 66, and the first storage position (non-working position) shown in FIGS. 7 and 8 on the slide portion 61c, and FIGS. The pin 65 and the R pin 66 are inserted and removed at the second storage position (working position) indicated by 10, and the receiving portion 61d is switched to a predetermined position and fixed. When the upper vertical pipe 57 is placed on the auger rest 61 switched to the first storage position or the second storage position, the auger outlet 41a on the distal end side of the upper vertical pipe 57 is respectively In the first storage position, it faces above the take-up reel R indicated by a chain line in FIG. 2, and in the second storage position, it faces a position deviated from the upper side of the take-up reel R indicated by a solid line in FIG.

  Therefore, even if the take-up reel R and the header portion 7 are raised to the maximum as shown in FIG. 5, they do not interfere with the tip side of the upper vertical pipe 57 in the second storage position. However, in the first storage position, when the take-up reel R and the header portion 7 shown in FIG. 1 are lowered, the take-up reel R is raised to the maximum with the header portion 7 shown in FIG. 3 lowered. 4 and when the header portion 7 is raised to the maximum while the scraping reel R shown in FIG. 4 is lowered, the leading end side of the scraping reel R and the header portion 7 and the vertical pipe 57 on the upper side is In the state shown in FIG. 5 in which the pick-up reel R and the header portion 7 are raised to the maximum, although there is no interference, the pick-up reel R and the tip side of the upper vertical pipe 57 interfere with each other, and the pick-up reel R or the header portion 7 Is raised, the take-up reel R collides with the front end side of the upper vertical pipe 57 and both are damaged.

  The receiving portion 61d of the auger rest 61 is provided with a discharge auger fixing ring 67. By hanging the discharge auger fixing ring 67 on a hook 57a fixed to the vertical pipe 57 on the upper side, the discharge auger 41 is attached to the auger rest 61. It can fix to the accommodation state mounted in the. Further, one end of the arm 68 is supported by the receiving portion 61d, and the other end of the arm 68 is supported by the reinforcing member 61b, thereby restricting the arm 68 so that it does not come out upward even when the receiving portion 61d is slid. doing. Further, the receiving portion 61d is provided with an augerest switch 69 for detecting the switching position of the first storage position or the second storage position of the augerest 61. As shown in FIG. The augerest switch 69 is turned on by coming into contact with the plate 61e provided at the tip of the part 61c, and the augerest switch 69 is turned off when it is separated from the plate 61e as shown in FIG.

  The storage state in which the discharge auger 41 is placed on the auger rest 61 has been described above. Next, the operation when discharging the grains collected in the grain tank 6 to a container or the like will be described. That is, when the discharge auger 41 is operated, it is necessary to remove the discharge auger fixing ring 67 from the hook 57a. The discharge auger 41 can be remotely operated by an auger remote control provided on the control unit 5 (not shown), and the discharge auger 41 can be moved up and down and swiveled by the auger remote control.

  Specifically, the raising / lowering operation range of the discharge auger 41 (upper vertical pipe 57) is shown in FIG. 6 by the auger raising / lowering cylinder 60 from the substantially horizontal position (0 degree) in the housed state placed on the auger rest 61. Thus, it can be raised to a position inclined approximately 45 degrees obliquely upward. Further, the swivel operation range of the discharge auger 41 (upper vertical pipe 57) is from the A position placed at the second storage position of the auger rest 61 as shown in FIG. The center can be turned to the F position that faces the left side of the aircraft at the maximum clockwise.

  The position B during turning is the position where the discharge auger 41 is stored at the first storage position, and the position C is the rightmost position where the right end side of the take-up reel R and the front end side of the discharge auger 41 may interfere with each other. Thus, if the discharge auger 41 swung from the position slightly closer to A to the range C is operated as it is, the take-up reel R and the leading end side of the discharge auger 41 may collide. However, between the position beyond the B position and the D position facing the right side of the fuselage, the upper limit of the discharge auger 41 is set in order to prevent the discharge auger 41 from coming into contact with the operator standing up in the glen tank 6 or the control unit 5. It is a lowering restriction range that cannot be turned unless it is raised to (substantially 45 degrees tilt), and the position where there is a possibility that the discharge auger 41 is substantially lowered and the leading reel side of the take-up reel R and the discharge auger 41 collide with each other. In the vicinity of the B position which is the first storage position.

  Further, the range in which the discharge auger 41 is actually lowered by the lowering regulation range and the grain can be discharged extends from the position beyond the D position to the E position which is the rear of the aircraft and the F position which faces the left side of the aircraft. The range is approximately 180 degrees on the rear side of the aircraft. In the auger remote controller, an auger manual switch for manually raising and lowering and turning the discharge auger 41, an auger automatic turning switch for automatically performing the turning operation, and a setting of a turning position to be turned by the auger automatic turning switch are set. An auger turning position selection switch for performing the above operation and a discharge switch for discharging the grain stored in the glen tank 6 are provided.

  When the auger turning position selection switch is used to select one of the discharge positions D, E, and F and then the auger automatic turning switch is pressed, the discharge auger 41 is raised to the upper limit (approximately 45 degrees tilt). Rotate to the selected discharge position and stop. Therefore, the operator operates the auger manual switch to lower it to a position where the auger outlet 41a faces the container, and when the discharge switch is pressed, the grain is transferred from the grain tank 6 by the rotationally driven horizontal spiral and vertical spiral, It is discharged toward the container from the auger outlet 41a. When the discharge is finished, the drive of the spiral is stopped by pressing the discharge switch again.

  When the auger automatic turning switch is pushed again, the discharge auger 41 is raised, turned, and lowered toward the original storage position of the auger rest 61. The auger manual switch for manually raising / lowering and turning the discharge auger 41 is composed of an up / down switch and a left / right turn switch, and each switch is operated to move the discharge auger 41 from the storage position of the auger rest 61 toward the discharge position. Alternatively, it can be operated from the discharge position toward the storage position.

  Next, a control device for preventing the collision (contact) between the above-described take-up reel R and the discharge auger 41 will be described. FIG. 12 is a control block diagram related to preventing collision between the take-in reel R and the discharge auger 41, and the control device includes an electronic control unit (ECU) 70 composed of a microcomputer. On the input side of the ECU 70, a reel height potentiometer 71 for detecting the raising / lowering position of the take-up reel R, a cutting part height potentiometer 72 for detecting the raising / lowering position of the header part 7, and a turning position of the discharge auger 41 are detected. The auger turning potentiometer 73 is connected to the auger height potentiometer 74 that detects the raising / lowering position of the discharge auger 41, or an auger upper limit switch that detects that the discharge auger 41 is at the upper limit position.

  Further, on the input side of the ECU 70, for example, a travel detection means 75 for detecting whether the machine body is traveling or stopped by a potentiometer that detects the operation position of the traveling speed change lever 46, and an illustration provided in the control unit 5, for example, are shown. The threshing clutch detection means 76 for detecting whether the threshing clutch and the reaping clutch are set to the engaged state by the power clutch switch that does not, and the on / off of the reel / cutting blade clutch for transmitting power to the take-up reel R and the cutting blade 14 Reel / cutting-blade clutch detecting means 77, reel raising / lowering switch 78 for raising / lowering the take-up reel R, cutting / raising / lowering switch 79 for raising / lowering the header 7 by the forward / backward movement of the multi-steer lever 44, and discharging An auger manual switch 80 for moving the auger 41 up and down and turning, and a discharge auger 41 The auger automatic switch 81 for operating the storage position and a discharge position, connects the auger rest switch 69.

  On the output side of the ECU 70, a solenoid valve 82 of the hydraulic cylinder 27 that raises and lowers the take-up reel R, a solenoid valve 83 of the hydraulic cylinder 28 that raises and lowers the header portion 7, and an auger lifting cylinder 60 that raises and lowers the discharge auger 41. The solenoid hull 84, the auger motor 58 for turning the discharge auger 41, the buzzer 85, and the lamp 86 are connected. The controller connected as described above repeatedly executes the subroutines of reel return control, reel lifting control, mowing unit lifting control, auger manual control, auger automatic control, and contact prevention control shown in FIG. Details of the contact prevention control are shown in FIG.

  That is, in the contact prevention control, when there is a possibility of collision (contact) between the take-up reel R and the discharge auger 41, the take-up reel R is forcibly lowered to prevent the collision between the two. Based on the detection results of the potentiometer and switch connected to the input side of the device, the solenoid valve, buzzer and lamp connected to the output side are actuated. First, based on the raising operation of the cutting part (header part 7) or this raising operation When the cutting part (header part 7) is lifted, or when the discharge auger 41 is lowered based on the manual lowering operation or automatic storage command of the discharge auger 41, or the lowering operation or command signal (step S1). Determines the position of the augerest 61 (step S2). Further, if the cutting part (header part 7) is not raised and the discharge auger 41 is not lowered, the take-up reel R and the discharge auger 41 do not collide, so that the operation control of the take-up reel R is not performed.

  In step S2, if the position of the auger rest 61 is the second storage position, even if the discharge auger 41 is lowered to the storage position, it does not face the pick-up reel R. Therefore, the operation control of the pick-up reel R is not performed. . If the position of the auger rest 61 is the first storage position, the distance between the reel and the auger is determined (step S3). In this step S3, the take-up reel R and the discharge auger 41 are subtracted from the height of the discharge auger 41 at the front end side by subtracting the height of the take-up reel R with respect to the header portion 7 and the height of the header portion 7 with respect to the machine body frame 3. 41 is calculated, and this distance is compared with a determination distance that can avoid collision determined in consideration of the ascending speed of the header section 7, the descending speed of the discharge auger 41, and the descending speed of the take-up reel R, If it is determined that the collision cannot be avoided in this state (<= determination distance), the process proceeds to storing the height before reel lowering (step S4). If it is determined that the collision can be avoided (> determination distance), the operation control of the take-in reel R is not performed. .

  The height of the discharge auger 41 on the tip side can be obtained from the auger height potentiometer 74. However, when an auger upper limit switch that detects that the discharge auger 41 is in the upper limit position is used instead of the auger height potentiometer 74, if the auger upper limit switch is turned on, the discharge auger 41 is raised to the maximum. If the height is used and if the auger upper limit switch is OFF, the distance between the take-in reel R and the discharge auger 41 can be seen on the safety side by simply using the height when stored in the auger rest 61. Can be calculated.

  In step S4, it is determined whether or not the forced lowering control of the take-in reel R in the present contact prevention control is currently being performed. If the lowering control has not been performed yet, The height of the insertion reel R (the height before the reel lowering) is stored (step S5). Next, the process proceeds to a determination of whether the machine is running or stopped (step S6). If the machine is running, the scraping reel R is moved to a normal speed (standard speed) to avoid a collision with the discharge auger 41 in step S7. ) To lower. Further, if it is stopped, the take-up reel R is lowered at a lower speed than the normal speed (standard speed) (step S8), the buzzer 85 is blown and the lamp 86 is blinked (step S9), and the header section 7 is further stopped. Is raised, the rising speed of the header portion 7 is decelerated, and when the discharge auger 41 is being lowered, the descending speed of the discharge auger 41 is reduced (step S10).

  Therefore, when there is a possibility that the take-up reel R and the discharge auger 41 collide (contact), when the machine is traveling, the auxiliary worker is not originally approaching the vicinity of the take-up reel R, and the Since it is assumed that there is no harm to the auxiliary worker even if the take-up reel R is lowered, the take-up reel R is lowered at a normal speed (standard speed) and the collision between the take-up reel R and the discharge auger 41 To avoid. However, when the airframe is stopped, it is assumed that an auxiliary worker is approaching the periphery of the take-up reel R. Therefore, by lowering the take-up reel R at a lower speed than the normal speed (standard speed), a time for the auxiliary worker to retreat from the vicinity of the take-up reel R is secured, and the buzzer 85 is blown and the lamp 86 is turned on. By flashing, the auxiliary worker is urged to evacuate, and the operator is informed of this situation, and in the event of an emergency, the avoidance action such as the lifting operation of the header section 7 or the lowering operation of the discharge auger 41 is urged.

  Further, the possibility of collision between the take-in reel R and the discharge auger 41 caused by lowering the take-up reel R at a low speed is dealt with by reducing the rising speed of the header section 7 and reducing the lowering speed of the discharge auger 41. be able to. The raising / lowering speeds of the take-up reel R, the header portion 7 and the discharge auger 41 can be changed by intermittent energization instead of continuous energization of a normal solenoid valve, and the electromagnetic proportional flow control valve or the like can be hydraulically operated. They may be added to the circuit to change their ascent speed.

  Next, the second embodiment of the contact prevention control will be described with reference to FIG. 15. In the second embodiment, the same flow is executed until step S7 of the first embodiment shown in FIG. Description of is omitted. Therefore, from step S8, the connected state of the threshing clutch is determined in step S8. In this case, if the threshing clutch is connected (ON), the connected state of the reel / cutting blade clutch is determined (step S9). If the reel / cutting blade clutch is connected (ON) in step S9, the process returns to step 7 to lower the take-up reel R at a normal speed (standard speed) to avoid a collision with the discharge auger 41. . If the threshing clutch is disconnected (OFF) in step S8, or if the reel / cutting blade clutch is disconnected (OFF) in step S9, the process proceeds to step 10.

  In step 10 above, when the header portion 7 is raised, the raising operation of the header portion 7 is prohibited to stop the raising of the header portion 7, and when the discharge auger 41 is lowered The lowering operation of the discharge auger 41 is prohibited and the lowering of the discharge auger 41 is stopped. Further, the buzzer 85 is sounded and the lamp 86 is blinked (step S11). The determination of the threshing clutch in step S8 is a state where both the threshing clutch and the reaping clutch are connected by the threshing clutch detecting means 76, and the state where both the threshing clutch and the reaping clutch are disconnected. Is not intended to mean that the threshing clutch is intermittent.

  Therefore, in the second embodiment of the contact prevention control, in addition to the determination that the machine body is running in the first embodiment, the scraping clutch and the reaping clutch, and further the determination of the connection state of the reel / cutting blade clutch are used. When there is a risk of collision (contact) between the take-in reel R and the discharge auger 41, the take-up reel R is lowered to avoid a collision between the take-in reel R and the discharge auger 41. Moreover, in this case, if the threshing clutch, the mowing clutch, and the reel / cutting blade clutch are all connected even if the machine is stopped, the forced lowering control of the take-in reel R is executed. . That is, in this case, the operator adjusts the cutting height by raising and lowering the header section 7 in front of the crop, or adjusting the cropping height by raising and lowering the picking reel R in advance. In the preparation stage, the auxiliary worker does not approach the vicinity of the take-up reel R, and it is assumed that even if the take-up reel R is lowered, no harm is caused to the auxiliary worker.

  On the other hand, the state where the machine is stopped, the threshing clutch and the mowing clutch are connected, and the reel / cutting blade clutch is disconnected means the situation when the auxiliary worker puts the hand-cutted cereal into the platform. In this case, it is assumed that an auxiliary worker is approaching the vicinity of the take-up reel R and that the auxiliary worker may be harmed if the take-up reel R is lowered. Therefore, in the second embodiment, in order to ensure safety, the raising operation of the header section 7 is performed instead of lowering the scraping reel R of the first embodiment at a lower speed than the normal speed (standard speed). It prohibits and the raising of the header part 7 is stopped immediately, and the lowering operation of the discharge auger 41 is prohibited and the lowering of the discharge auger 41 is stopped immediately. The determination of the threshing clutch and reaping clutch of the second embodiment, and the reel / cutting blade clutch may be added to the first embodiment, or the scraping reel R of the first embodiment is operated at a normal speed ( Instead of lowering at a lower speed than the standard speed), it is also possible to incorporate the cutting portion ascent or auger lowering prohibition of the second embodiment.

  Next, the reel return control for returning the scraping reel R to the original position after forcibly lowering the scraping reel R by the contact prevention control will be described. That is, as shown in FIG. 16, in the reel return control, first, it is determined based on the storage of the height before the reel lowering whether the scraping reel R is in a state of being forcedly lowered by the contact prevention control. (Step S1). If the pre-lowering height is stored and the forced lowering control is performed, the process proceeds to step S2, and if not stored, the operation control for returning the take-up reel R is not performed.

  In step S2, the lowering operation of the cutting part (header part 7), or the cutting part (header part 7) is lowered based on this lowering operation, or the manual raising operation of the discharge auger 41 or the automatic discharge position is performed. It is determined whether or not the discharge auger 41 has been lifted based on this movement command, or this lift operation or command signal, and if any operation or action is not detected, the operation control for returning the take-up reel R is not performed. However, if any operation or operation is detected, the distance between the above-described take-up reel R and the discharge auger 41 is determined (step S3). Then, in step S3, if it is determined that there is still a possibility of collision (<= determination distance), the operation control for returning the scraping reel R is not performed. If it is determined that there is no possibility of collision (> determination distance), the process proceeds to step S4, and the operation control to the ascending side is performed so that the take-up reel R is returned to the stored height before descent.

  Therefore, after the take-in reel R is forcibly lowered by the contact prevention control, and in the reel return control, when there is no possibility of collision between the take-in reel R and the discharge auger 41, the take-up reel R is automatically picked up to the height before the descent. Since the reel R is returned, it is freed from the trouble of manually adjusting the height of the take-up reel R, and the cutting operation can be resumed quickly.

  By the way, the reel lifting control when the scraping reel R is manually operated will be described. As shown in FIG. 17, the reel lifting control detects the lifting operation of the reel lifting switch 78 for lifting the scraping reel R in step S1. Then, the distance between the aforementioned take-up reel R and the discharge auger 41 is determined (step S2). If it is determined in step S2 that the distance (> determination distance) is not likely to collide with the discharge auger 41, the process advances to step S3 to raise the take-up reel R.

  However, if it is determined that the distance is likely to collide (<= determination distance), the raising operation of the scraping reel R is prohibited and stopped (step S4). On the other hand, if the ascending operation is not detected in step S1, the presence / absence of the descending operation is determined (step S5). If the descending operation is detected here, the take-up reel R is lowered (step S6). If the lowering operation is not performed, the process proceeds to step S4, and the operation of the take-up reel R is stopped.

  Therefore, even when the take-up reel R is manually raised, if the take-up reel R may collide with the discharge auger 41, the raise operation of the take-up reel R is forcibly stopped. The collision between the take-in reel R and the discharge auger 41 can be prevented. In the cutting part lifting control, the auger manual control, and the auger automatic control, the control for preventing the collision between the take-up reel R and the discharge auger 41 according to the present invention is not specially incorporated. Since it corresponds, I will omit the explanation.

  As described above, the embodiment of the present invention has been described. However, if the collision between the take-up reel R and the discharge auger 41 cannot be prevented only by forcibly lowering the take-up reel R, the take-up reel R is forced. The header portion can be lowered, and the header portion can be prevented from being raised, or the header portion can be forcibly lowered. In the present invention, when the take-up reel R is forcibly lowered, the lowering speed is controlled so as not to endanger the auxiliary worker. This is done when not working, but for the sake of accuracy, the presence of an auxiliary worker is confirmed by detecting whether there is an auxiliary worker around the header section 7 using a human body detection sensor composed of an infrared sensor or the like. If so, the control may be performed, and the present invention is not limited to the embodiment.

DESCRIPTION OF SYMBOLS 1 Crawler type traveling device 3 Airframe frame 4 Threshing part 5 Control part 6 Glen tank 7 Header part F Feeder R Stir reel 12 Platform auger 14 Cutting blade 41 Discharge auger 61 Auger rest 70 Control device

Claims (6)

  A general-purpose combine that provides a control unit, a threshing unit, and a glen tank to a machine equipped with a traveling device, and a header unit that can be adjusted in height in front of the machine so that it can be raised and lowered, a cutting blade, a platform auger, and a feeder. The grain tank includes an auger for discharging the harvested grain, and the discharge auger is configured to be able to move up and down and turn from the storage position facing the header portion toward the discharge position, while the scraping reel If there is a possibility of collision with the discharge auger in accordance with the raising operation of the header part or the lowering operation to the storage position of the discharge auger, the control device forcibly descends to avoid the collision between them. General-purpose combine characterized by being configured.   When forcibly lowering the take-up reel, the height before the take-down reel is lowered is stored, and when there is no possibility that the take-up reel collides with the discharge auger, the stored take-up reel The general-purpose combine according to claim 1, wherein the control device is configured to be raised to a height of.   The general-purpose combine according to claim 1 or 2, wherein a descending speed when forcibly lowering the take-up reel is slowed when not working.   4. The apparatus according to claim 3, wherein when the descending speed when the scraping reel is forcibly lowered is slowed, the ascending speed of the header section or the descending speed of the discharge auger is slowed down. General-purpose combine described in 1.   The forcible lowering of the take-up reel is prohibited when not in operation, and the ascending operation of the header section or the lowering operation of the discharge auger is disabled. 2. The general-purpose combine described in 2.   The storage position of the discharge auger is configured to be changeable to a second storage position that is off the header, and when the storage position of the discharge auger is changed to the second storage position, the take-up reel is forced The general purpose combine according to any one of claims 1 to 6, wherein the general-purpose combiner is configured so as not to be lowered.

Images