JP4067774B2 - Mobile farm machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a mobile agricultural machine provided with each working device for cutting, transporting, and threshing cereals, and more particularly to adjusting a transmission path for transmitting a driving force to each working device.
[0002]
[Prior art]
The combine as a mobile agricultural machine has a divider for weeding cereals and a raising device for raising cereals as a pre-processing unit provided in the front part of the machine. The induced grain culm is raised and lifted by a chain to cut the stock and cut, and the harvested corn straw is scraped by a belt with a protrusion of a scraping device and transferred backward by a star wheel. The cereals are handed over to the rear conveying device and the transverse conveying device (in the case of a large combine). Further, the cereals brought to the left side of the machine body by the lateral feed conveying device are sent from the scraping conveying device to the handling depth conveying device, and the length of the cereals sent in the handling depth conveying device. Is automatically taken to an appropriate depth and taken over by the feed chain on the threshing section side. The feed speed of the feed chain is controlled so as to be linked to the vehicle speed so that there is no variation in the amount of cereals that are transported.
[0003]
[Problems to be solved by the invention]
By the way, the above-described combine is driving each working device that performs each of the above-described operations by the driving force from the engine, and based on the rotational speed of the engine, the rotational speed or speed of each device, the feed chain speed. , Etc. are set. Therefore, when adjusting (or inspecting or setting) the rotational speed and speed of each working device, particularly the feed chain speed, it is necessary to adjust the engine at a rated rotational speed.
[0004]
However, in order to confirm that the engine has the rated rotational speed, it is necessary to confirm using, for example, a rotational speed measuring meter. When adjusting the feed chain, the rotational speed measuring meter is separately provided. Prepared and connected to the engine, while adjusting the speed of the feed chain while visually checking. Therefore, those operations are complicated and time-consuming.
[0005]
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a mobile farm machine that solves the above-described problems by notifying that the output shaft of the drive source has a rated rotational speed at the time of input check .
[0006]
[Means for Solving the Problems]
The present invention, in a mobile agricultural machine comprising a drive source (18) and a transmission path (100) for transmitting the driving force output from the drive source to each working device,
Input check means (S101) for checking whether the drive source (18) has a rated speed;
Notification means (S102, S103) for notifying only when the drive source is at the rated rotational speed when the input check means is operating; a continuously variable transmission (81) disposed in the transmission path (100); With
Based on the recognition that the drive source has a rated rotational speed based on the notification means, the continuously variable transmission so that the speed of the working device (46) through the continuously variable transmission (81) becomes a predetermined value. Adjust the
It is in the mobile agricultural machine (C) characterized by this.
[0008]
In addition, although the code | symbol in the said parenthesis is for contrast with drawing, this is for convenience for making an understanding of invention easy, and has no influence on the structure of a claim. It is not a thing.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0010]
First, each working device of the combine (mobile agricultural machine) C according to the present invention will be described with reference to FIG. FIG. 1 is a cross-sectional side view showing the entire combine according to the present invention. In the figure, the combine C has a traveling machine body 11 supported by a pair of left and right crawler traveling devices 12, 12. On the left and right sides of the upper part of the traveling machine body 11, A threshing device (working device) 14 for selecting the threshed grain, and a driver's seat (not shown) are provided on the left and right sides of the threshing grain. A processing device (working device) 16 is supported to be movable up and down. An engine (drive source) 18 is mounted below the driver's seat, and power is transmitted to the above-described threshing device 14 and the pretreatment device 16 via the transmission 20 by the driving force of the engine 18, and cutting is performed. -While the threshing operation is performed, the power is transmitted to the crawler traveling devices 12 and 12 to travel the aircraft.
[0011]
The driver's seat (not shown) is provided with various switches, levers, etc. for driving the combine C and for operating each working device. Specifically, an input check switch for selecting an adjustment mode. , A work machine clutch lever for connecting / disconnecting driving force to / from each work device, a main transmission lever for operating a transmission for traveling, a horn switch for sounding a horn, and a feed chain transmission for shifting a feed chain Lever, etc. are provided.
[0012]
The pretreatment device 16 is rotatably supported on the transmission shaft case 22 on the machine body side of the pretreatment device 16, and the transmission is extended from the transmission shaft case 22 toward the obliquely lower side of the traveling machine body 11. The case 24 is supported to be movable up and down based on expansion and contraction of a hydraulic cylinder 26 disposed at an intermediate position in the longitudinal direction. The transmission shaft case 22 is provided with a lift potentiometer 25 that detects the amount of rotation of the transmission case 24. The transmission potentiometer 25 extends below the transmission case 24 in the left-right direction of the machine body and is substantially the same as the transmission case 24. A transmission shaft cylinder 28 orthogonal to the T-shape is integrally connected.
[0013]
The pre-processing device 16 has a plurality of dividers 30 that weed and cut the uncut grain culm and guide it to the passage, and direction sensors 32 provided below the dividers 30 at the left and right ends. 30 and the direction sensor 32 are respectively attached to a pretreatment frame 34 extending forward of the machine body. Behind the divider 30, an elevating device 36 that raises the weed cereal straw is provided so as to rise from the front toward the rear.
[0014]
The pulling device (working device) 36 has a claw chain 37 and a pulling case 38, and a plurality of claws are attached to the claw chain 37 at a predetermined interval. Rotate upward to pick up the cereals in an orderly manner. The power for driving the claw chain 37 is transmitted from the transmission 20 through a drive shaft in the transmission shaft cylinder 28 by a pre-processing transmission gear case (not shown) extending obliquely forward from the transmission shaft cylinder 28 to the machine body. .
[0015]
Next, a cutting blade 40 is provided behind the pulling device 36 and at the lower front portion of the transmission shaft cylinder 28 to cut the stock of the cereals close to the ground. The cereals are picked up by the pick-up conveying device 42 and transferred backward. At the rear of the stir transport device (working device) 42, a transverse feed transport device (not shown) for transporting the cereals inherited by the stir transport device 42 toward the left side of the machine body is disposed. The cereals fed to the left side of the machine body by this lateral feed conveying device are further taken over by the handling depth conveying device (working device) 44, and the length of the cereal is sensed by this handling depth conveying device 44. And automatically adjusted to the proper handling depth. In general, a small-scale combiner is often not provided with a lateral feed conveying device. Next, the harvested cereal grains taken over by the handling depth conveying device 44 are taken over from the handling depth conveying device 44 to the threshing feed chain 46 and conveyed toward the threshing unit 14 by the threshing feed chain 46.
[0016]
The scraping and transporting device 42 includes a scraping and transporting belt 48, a stock transporting star wheel 49, a stock transporting chain 50, and the like. It is scraped by 49 and brought to each passage, is sandwiched by the stock transport chain 50, is transferred to the lateral feed transport device, and is taken over by the handling depth transport device 44.
[0017]
Further, the handling depth conveying device 44 rotates its rear portion around the transmission shaft case 22 (or a support shaft (not shown) extending from the main body) so that the handling depth can be adjusted. It is supported so as to be provided with a tip transporting chain 52 for transporting the head side of the cereal and a stock transporting chain 54 for transporting the stock side. The tip transport chain 52 and the stock transport chain 54 are integrally movable up and down with the above-mentioned rear portion as a fulcrum (in the direction of the arrow in the figure), and the starting end thereof is the end of the stock transport chain 50 in the transport direction. It is extended above the side.
[0018]
Then, in order to adjust the handling depth, the handling depth conveying device 44 moves up and down, whereby the cereal straw is adjusted to an appropriate handling depth and transferred to the threshing feed chain 46. In addition, the stock transporter 54 on the stock side receives power and transmits rotation independently from the drive shaft in the transmission shaft case 22.
[0019]
The threshing device 14 is provided with a handling chamber 56 substantially in parallel with the threshing feed chain 46, and a handling cylinder 58 is rotatable in the handling chamber 56 about a rotation axis along the longitudinal direction of the machine body. Has been placed. A receiving net 60 for leaking the threshed grain is provided below the handling barrel 58, and a swing sorting device (working device) 62 can swing back and forth below the receiving net 60. The grain material mixed with the toothpick is sorted by this swinging action and the sorting wind generated from the Kara fan 63. The grains selected by the swing sorting device 62 are dropped and accommodated in the first basket 64 or the second basket 66 arranged below. In addition, the cereal mash after being threshed by the handling cylinder 58 in the handling chamber 56 is taken over from the threshing feed chain 46 to the drained warachien 68 provided at the rear part of the machine body, and has a proper length by a cutter (not shown). After being cut, it is processed outside the machine. The toothpick remaining without being dropped and accommodated in the first fence 64 or the second fence 66 is sucked by the suction fan 71 and processed outside the apparatus.
[0020]
By the way, in general, when the machine traveling speed at the time of harvesting cereals is increased, the amount of transported cereals passing through the take-up conveying device 42 and the handling depth conveying device 44 is increased, and these cultivated culms are conveyed. In order to prevent clogging in the middle, it is necessary to increase the conveying speed of the threshing feed chain 46. On the other hand, when cutting at a low speed, the transport speed of the threshing feed chain 46 is low because the amount of the transported culm passing through the scooping transport device 42 and the handling depth transport device 44 is small. For these reasons, the threshing feed chain 46 can be shifted in conjunction with the aircraft traveling speed.
[0021]
The handling depth conveying device 44 is provided with a main sensor 45 that detects the presence or absence of a harvested cereal meal during conveyance. For example, an on / off switch is used for the main sensor 45, and the harvested cereal grains harvested by the cutting blade 40 are handed over from the scooping and conveying device 42 to the handling depth conveying device 44, and the handling depth conveying device 44. The presence or absence of the harvested cereal rice cake in the middle is detected. Then, when the main sensor 45 detects that the state of the harvested culm has changed from the detection state to the non-detection state, the conveying speed of the threshing feed chain 46 is automatically shifted to the low speed side.
[0022]
For example, in the harvesting work of the planted cereal husk by the combine C, the cutting operation is interrupted while the machine body is rotated at the end of the field. When the last portion (rear end side) of the culm is handed over from the transport chain on the handling depth transport device 44 side to the threshing feed chain 46, the transport speed of the threshing feed chain 46 is higher than the transport speed of the transport chain. Is set fast, the stocker side of the transported cereal is excessively pulled by the threshing feed chain 46, and the transport posture becomes the stocker preceding state. In order to avoid this, when the cutting operation is interrupted, the conveying speed of the threshing feed chain 46 is shifted to the low speed side to prevent deterioration of the conveying posture of the cereal.
[0023]
For example, in order to interrupt the cutting operation at the field edge and turn the machine, it is necessary to turn the side clutch by operating the side clutch etc. Therefore, during this predetermined time, by shifting the conveyance speed of the threshing feed chain 46 to the low speed side, when taking over the cereal meal on the conveyance rear end side from the handling depth conveyance device 44 to the threshing feed chain 46, The stocker side of the cereal is excessively pulled and the conveying posture is maintained in a normal posture without being in the stocker preceding state. In addition, after the predetermined time has passed, the conveying speed of the threshing feed chain 46 is shifted to, for example, the high speed side in conjunction with the airframe traveling speed. When taking over from 44 to the threshing feed chain 46, overlapping of cereal grains is prevented. Therefore, at the time of resuming the cutting operation, when the transported culm is handed over from the handling depth transporting device 44 to the threshing feed chain 46, it is possible to prevent clogging of the cereal that occurs because the transport speed of the threshing feed chain 46 is slow. it can.
[0024]
For example, the aircraft needs to travel a predetermined distance for turning, etc., after the cutting operation is interrupted and resumed. During this predetermined distance, the conveying speed of the threshing feed chain 46 is reduced to the low speed side. As described above, the speed is changed so that the conveying posture of the wheat straw on the rear end side of the conveyance is kept normal, and the clogging of the wheat straw is prevented.
[0025]
Next, the transmission path 100 that transmits the driving force to each working device of the combine will be described with reference to FIG. FIG. 2 is a diagram showing a combine power transmission system. In the transmission path 100, the driving force of the engine 18 is transmitted to the horizontal cylinder 70a and the teracene 70b on the side of the Glen tank 70 by gear coupling, and the first handling cylinder 58 ( If there is a second handling cylinder, it is transmitted to the second handling cylinder 59). Further, a driving force is transmitted from the first handling cylinder 58 to the exhaust warachien 68 via a gear or the like. Further, the drive shaft 63a of the tang fan 63 is transmitted to the transmission unit 80 via the drive side pulley 74, the driven pulley 76 and the belt 78, and the transmission unit 80 drives the threshing feed chain 46 via the drive shaft 46a. It has come to be.
[0026]
The driven pulley 76 is a split pulley and has a fixed flange and a movable flange. The movable flange is movable in the axial direction, and the pulley 76 is changed by changing the width of the driven pulley 76. The so-called continuously variable transmission 81 is configured in which the diameter of the shaft is changed to a large or small size and the pulley shaft 86 is accelerated / decelerated. The moving position of the movable flange at this time is detected by a feed chain potentiometer (not shown), and the conveying speed of the threshing feed chain 46 is detected by this feed chain potentiometer.
[0027]
On the other hand, the driving force from the engine 18 is transmitted from the drive shaft 63a of the shell fan 63 to the swing sorting device 62 described above. Are transmitted to the second spiral 66a and the suction fan 71. Further, the 1st helix 64a and the 2nd helix 66a are transmitted to the deep-fried helix 65 and the tateracene 67. The ground cereals 65 and tateracene 67 communicate with the tateracene 70b on the side of the grain tank 70, and the grains selected into the first cocoon 64 and the second cocoon 66 are cerealed in the grain tank 70. Stored. Further, the second spiral 66a is transmitted to the sirocco fan 69 and the cutter 73, and the first spiral 64a is transmitted to the swinging plate 62a of the swing sorting device 62. In addition, in the above FIG. 2, a dashed-dotted line is a belt engaged with the pulleys of both ends.
[0028]
Note that other work devices (the pretreatment device 16, the pulling device 36, the scooping transport device 42, the handling depth transport device 44, etc.) are provided above the engine 18 in FIG. The driving force is transmitted to these working devices by the transmission path.
[0029]
Next, control of the horn (notification means) in the adjustment mode, which is a main part of the present invention, will be described with reference to FIG. FIG. 3 is a flowchart showing the control of the horn in the adjustment mode. First, the adjustment mode is selected by the input check switch provided in the driver's seat described above, and the engine 18 is rotated (S100). Subsequently, the control unit (not shown) performs an engine check condition (for example, the work implement clutch lever is in a connected state, the main transmission lever is in a neutral state, the input check switch is selected in an adjustment mode, etc. Is determined) (S101). If the engine check condition is satisfied, it is determined whether or not the rotational speed of the engine 18 is a rated rotational speed (for example, 2400 rpm) (S102). In a state where the rotational speed of the engine 18 is the rated rotational speed, the horn is output (sounded) intermittently, for example, to notify that the engine 18 is at the rated rotational speed in the adjustment mode (S103). Then, it progresses to step S104 and returns to step S100.
[0030]
On the other hand, in step S101, the control unit (not shown) is in a state where the engine check condition is not satisfied (for example, when the adjustment mode is not selected, when the work implement clutch lever is not connected, the main speed change lever moves forward or If it is determined to be in the reverse position, the process proceeds to step S104 and returns to step S100. That is, if the adjustment mode is not selected, each work device is not driven, In the case where the combine C is running, the horn is not output (sounded), for example. If the control unit determines in step S103 that the engine 18 is not at the rated speed, the horn is not output (sounds) in the same manner, and the process proceeds to step S104 and is returned to step S100. In other words, since the horn is output (sounded) only at the rated rotational speed, the rated rotational speed can be notified.
[0031]
Next, an example of feed chain adjustment will be described with reference to FIG. FIG. 4 is a flowchart showing the adjustment procedure of the feed chain 46. First, when starting the adjustment of the feed chain 46 (S200), the input check switch is selected to the adjustment mode as described above, the work implement clutch lever is brought into the connected state, and the main transmission lever is brought into the neutral state. Next, the engine 18 is started (S201), the rotational speed of the engine 18 is increased, and the rated rotational speed is set to 2400 rpm, for example, based on the notification by the horn (S202). Then, the feed chain shift lever provided in the driver's seat is combined to change the speed to the highest speed (S203), and in this state, the horn recognizes that the engine is at the rated speed, and the drive shaft of the feed chain 46 is recognized. The rotational speed of 46a is measured (S204).
[0032]
The number of rotations of the drive shaft 46a needs to be set according to, for example, the amount of cereal to be reaped, for example, 272 to 301 rpm in Japan, and 246 to 273 rpm in Taiwan, for example. It is determined whether or not the rotational speed of the drive shaft 46a measured in step S204 is within the specified range (S205). If the rotational speed of the drive shaft 46a is within the specified range, it is necessary to adjust. Therefore, the adjustment of the feed chain 46 is finished as it is (S210).
[0033]
On the other hand, when the rotational speed of the drive shaft 46a measured in step S204 is not within the specified range (S205), the width of the driven pulley 76 of the continuously variable transmission 81, that is, the diameter of the pulley 76 is first determined. By adjusting (S206), the speed of the pulley shaft 86 is adjusted, that is, the speed of the feed chain 46 is adjusted. Thereafter, the rotational speed of the drive shaft 46a is measured again (S207), and it is determined whether or not the rotational speed of the drive shaft 46a is within the specified range (S208). If the rotational speed of the drive shaft 46a is not within the specified range, the procedure from step S206 to step S208 is repeated, and the width of the driven pulley 76 is increased until the rotational speed of the drive shaft 46a is within the specified range. adjust. When it is determined that the rotational speed of the drive shaft 46a is within the specified range (S208), the width of the driven pulley 76 in this state (current) is recorded as a maximum speed position in a control unit (not shown). (S209), the adjustment of the feed chain 46 is finished (S210).
[0034]
As described above, according to the present invention, when adjusting the speed of the belt and pulley of the transmission path, the speed of the feed chain, etc., it is notified that the engine is at the rated speed in the adjustment mode. It is possible to recognize that the engine has the rated speed without separately preparing and connecting. Specifically, when setting the engine to the rated speed, when adjusting the width of the driven pulley 76 of the continuously variable transmission 81 to adjust the speed of the feed chain 46, the engine is at the rated speed. It can be recognized, for example, it eliminates the work of connecting and visualizing a rotation speed meter, etc., and makes it easy to adjust (or inspect and set) the speed and speed of the belt and pulley of the transmission path and feed chain. Work burden can be reduced.
[0035]
In the above embodiment, the horn is intermittently output (sounded) as the notification means, but the notification is not limited thereto, and the horn may be output (sounded) continuously, Not only a horn but also a buzzer, a lamp, or the like may be used, and any device that can notify the rated rotational speed of the drive source in the adjustment mode may be used. Further, the drive source is not limited to the engine, and may be a motor or the like, as long as it drives each working device.
[0036]
【The invention's effect】
According to the first aspect of the present invention, when the input check means is operated, it is provided with an informing means for informing that the drive source is at the rated rotational speed. For example, a rotational speed measuring meter is separately prepared and connected. Without being recognized, it can be recognized that the drive source has a rated rotational speed. As a result, when setting the drive source to the rated rotation speed, adjusting the transmission path, etc., for example, connecting a rotation speed measurement meter, visual inspection, etc. are eliminated, making it easy to check the input of the drive source. , Can reduce the burden of adjustment work.
And a continuously variable transmission disposed in the transmission path; and a work device such as a feed chain driven by a driving force transmitted to at least one of the work devices via the continuously variable transmission. Therefore, when the continuously variable transmission is adjusted to adjust the speed of the working device, it can be recognized that the drive source is the rated rotational speed. Thereby, for example, it is possible to eliminate the work of connecting or visually recognizing a rotation speed measurement meter, to facilitate the adjustment of the speed of the working device, and to reduce the adjustment work load.
[Brief description of the drawings]
FIG. 1 is a sectional side view showing an entire combine according to the present invention.
FIG. 2 is a diagram showing a power transmission system of a combine.
FIG. 3 is a flowchart showing control of the horn in the adjustment mode.
FIG. 4 is a flowchart showing a feed chain adjustment procedure;
[Explanation of symbols]
14 Working device (threshing device)
16 Working device (pretreatment device)
18 Drive source (engine)
36 Working device (lifting device)
42 Working device (scratching device)
44 Working device (Handling depth conveying device)
46 Working device (feed chain)
62 Working device (oscillating sorting device)
8 1 Continuously variable transmission 100 Transmission path C Mobile agricultural machine (combine)

Claims (1)

In a mobile agricultural machine comprising a driving source and a transmission path for transmitting the driving force output from the driving source to each working device,
Input check means for checking whether the drive source has a rated speed;
Informing means for informing only when the drive source is at the rated rotational speed when the input check means is in operation ;
A continuously variable transmission disposed in the transmission path,
Adjusting the continuously variable transmission so that the speed of the working device through the continuously variable transmission becomes a predetermined value based on the recognition that the drive source has a rated rotational speed based on the notification means;
A mobile agricultural machine characterized by that.

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