JP2005052026A - Combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that a conveying route is blocked with grain straws or a large load is given to a threshing section to deteriorate the performance of the threshing, when the conveyed grain straws are too many, because a suitable grain straw-conveying amount is not found. <P>SOLUTION: This combine harvester comprising a preliminarily treating section for reaping and conveying grain straws, a threshing section for nipping and conveying the root sides of the grain straws delivered from the preliminarily treating section with a threshing feed chain and simultaneously inserting the ear tip sides of the grain straws into a threshing chamber, and a discharged straw-conveying section for receiving and conveying the threshed grain straws behind a machine frame is characterized by disposing a detection means for detecting the amount of the conveyed grain straws in a route for conveying the grain straws and a display means for displaying the information on the amount of the conveyed grain straws on the basis of the detected value of the detection means. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a combine that harvests and thresh cereal grains.

  2. Description of the Related Art Conventionally, a combine in which a clogging detection device is disposed at a conveyance terminal portion of a waste chain that conveys threshed cereal and the occurrence of clogging is detected by the clogging detection device is already known (for example, , See Patent Document 1).

Japanese Patent Laid-Open No. 2003-50

Since the conventional clogging detection device only detects the occurrence of clogging, it is difficult to predict and avoid clogging in advance.
Moreover, since the proper amount of cereals to be transported is not known, there is a problem that clogging occurs when there are many transported cereals, or a high load is applied to the threshing unit, resulting in poor threshing performance.
An object of the present invention is to improve the above conventional problems.

In order to achieve the above object, the present invention provides a pre-processing unit for cutting and transporting corn straw, and a handling chamber on the tip side while sandwiching and transporting the stock side of the corn straw delivered from the pre-processing unit with a threshing feed chain In a combine equipped with a threshing unit that is inserted into the threshing unit and a waste transporting unit that inherits the threshed culm and transports it to the rear of the machine, the amount of cereal transported is detected in the transport path of the cereal And a display means for displaying cereal conveyance amount information based on the detection value of the detection means.
Further, the present invention is characterized in that a plurality of detection means are provided in the transport path of the cereal straw and the transport amount information at a plurality of places is displayed by the display means.
Moreover, in the handling operation in which an operator supplies hand-harvested grain straw to the threshing feed chain starting end, a display means is provided at a position where the operator can visually recognize the handling operation.

Since the present invention is provided with a display means for displaying the carry amount information of the cereal, it is possible to avoid clogging by changing the vehicle speed in accordance with the carry amount information, and the working efficiency is improved and the cereal is improved. It can be prevented that the carrying amount is excessive and the threshing performance is deteriorated.
In addition, since a plurality of detection means for detecting the amount of cereal conveyance is provided and the conveyance amount information at a plurality of locations is displayed, the respective conveyance amount information can be compared and there is a tendency of where the conveyance route is clogged. I understand.
In addition, since the display means is provided at a position that can be visually recognized by the operator during the handling operation, it can be supplied with an appropriate amount of cereal conveyance, and the threshing performance can be prevented from being deteriorated.

  Next, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 1 is a side view showing a combine. 1 is a traveling machine body supported by a pair of left and right crawler traveling devices, 2 is a driving operation unit disposed on the right side of the front part of the traveling machine body 1, and 3 is a front side of the traveling machine body 1. A pre-processing unit that is erected on the left side of the unit so as to move up and down and harvests and transports the cereals. 4 is a threshing unit that conveys the cereals delivered from the pre-processing unit while threshing, and 5 is a threshing unit 4 It is a waste transporting unit that inherits the processed grain straws and transports them to the rear of the machine.

The said pre-processing part 3 is the threshing part 4 which causes the culm to cause the culm, the cutting blade 7 which cuts the stock of the culm, the scraping device 8 which rakes the cut culm, and the harvested culm. And a handling depth conveying device 9 that appropriately adjusts the handling depth of the cereal.
And the said handling depth conveyance apparatus 9 is supported so that rotation is possible centering on the rear part in order to adjust the handling depth of a grain straw appropriately, and the tip conveyance chain 10 which conveys the grain tip side of the grain straw, And a stock transport chain 11 for transporting the stock side.
Further, the handling depth conveying device 9 has a handling depth main switch 12 comprising a detection body that contacts the grain straws and an ON / OFF switch as a detecting means for detecting the presence or absence of the grain straws in the middle of transportation. And a tip side sensor comprising a first tip sensor 13 and a second tip sensor 14 as a tip side detecting means for detecting the tip position of the harvested cereal. The first and second tip sensors 13 and 14 are each composed of a detection body that contacts the cereal and an ON / OFF switch, and the both tip sensors 13 and 14 take over from the scraping device 8 to the handling depth conveying device 9. The position of the tip of the harvested cereal is detected.

  Moreover, the said handling depth main switch 12 serves as the detection means which detects the cereal conveyance amount conveyed with the handling depth conveyance apparatus 9. FIG. The detection body of the handling depth main switch 12 is rotatably attached, and a potentiometer for detecting the rotation angle of the detection body is provided at the rotation base of the detection depth main switch 12. By detecting the rotation angle, the thickness (amount) of the transported culm bundle is detected.

  The threshing unit 4 includes a threshing feed chain 16 along the handling chamber 15 and a holding rail 17 facing the threshing feed chain 16, and the cereal rice cake passed from the pretreatment unit 3 has a stock side. While being sandwiched and conveyed by the threshing feed chain 16 and the sandwiching rail 17, the tip side is inserted into the handling chamber 15 and shed by the teeth of the handling cylinder 18 in the handling chamber 15.

The sandwiching rail 17 is supported by the support frame 20 via a rail pin 19 so as to be vertically movable, and is elastically biased toward the threshing feed chain 16 by a spring.
Reference numeral 21 denotes a potentiometer that constitutes a detecting means for detecting the amount of corn straw transported by the threshing feed chain 16, and by detecting the amount of vertical movement of the holding rail 17 by the potentiometer 21, the thickness (amount) of the transported culm bundle. Is detected.

22 is a drive sprocket of the threshing feed chain 16, and 23 is a driven sprocket. As shown in FIG. 2 (a), the driven sprocket 23 has a mountain shape of its teeth 24 with a steep slope on the upper side in the rotational direction and a lower side on the lower side. It has a gentle slope.
Therefore, conventionally, as shown in FIG. 2 (b), the crests of the teeth 24 of the driven sprocket 23 are formed in the same steep slope on the upper side and the lower side in the rotational direction, so that the threshing feed chain 16 is driven by the driven sprocket 23. In the present embodiment, the lower side of the teeth 24 in the rotational direction is the threshing feed chain 16, although the threshing feed chain 16 may be caught inward and caught on the tip of the chain guide 25 when it is separated from the driven sprocket 23. Therefore, the threshing feed chain 16 flows smoothly without being caught by the chain guide 25.

The waste transporting part 5 is provided with a waste transporting chain 27 and a holding rail 28 facing below the waste transporting chain 27, and the grain flour that has been threshed by the threshing part 4 is transported by holding the stock side between the both. Transported to the rear of the aircraft. The sandwiching rail 28 is supported by the machine body so as to be movable up and down, and is elastically biased toward the waste transporting chain 27 by a spring.
Reference numeral 29 denotes a potentiometer that constitutes a detecting means for detecting the amount of cereal transported by the waste transporting chain. By detecting the amount of vertical movement of the clamping rail 28 by the potentiometer 29, the thickness (amount) of the transported culm bundle Is detected.

FIG. 3 is a perspective view showing the driving operation unit 2.
The front portion of the seat 30 is provided with a key switch 31, a horn button 40, and an operation lever 32 that enables a turning operation of the traveling machine body 1 and a lifting operation of the preprocessing unit 2 by tilting operation. An instrument panel 33 and a continuously variable transmission lever 34 that enables forward / reverse switching of the traveling machine body 1 and traveling gear shifting operation are provided.

FIG. 4 is an enlarged view showing the instrument panel 33.
The instrument panel 33 is provided with a display unit 34 for displaying information on the amount of cereal transported, and 35 in the display unit 34 is based on the value detected by the potentiometer provided in the main handle depth switch 12. The amount of cereal transported by the processing unit 3 is displayed, 36 indicates the amount of cereal transported by the threshing unit 4 based on the detected value of the potentiometer 21, and 37 is rejected based on the detected value of the potentiometer 29. The cereal conveyance amount in the conveyance unit 5 is displayed.

  The display unit 34 displays the cereal conveyance amount in a vertical bar shape, color-divides the vertical bar into three zones, and indicates that the conveyance amount is in an appropriate state when the cereal conveyance amount is the blue zone, In the yellow zone, the transport amount is larger than the proper state, and the red zone represents a state in which the transport amount is too large and clogging occurs.

  Moreover, as shown in FIG. 1, while the display part 39 is provided in the side cover 38 by the side of the threshing feed chain 16 of the threshing part 4, the threshing part 4 of the display contents of the display part 34 is displayed on the display part 39. In the handling operation in which the cereal conveyance amount 36 and the cereal conveyance amount 37 of the waste conveying unit 5 are displayed, and the worker supplies the chopped cereal to the starting end of the threshing feed chain 16. The operator can view the display unit 39 while handling the hand.

  With the above configuration, the cereals whose stock has been cut by the cutting blade 7 are scraped by the scraping device 8 and then transferred to the handling depth transport device 9 while the handling depth is adjusted. The cereals conveyed by the handling depth conveying device 9 are threshed by the barrel 18 while the stock side is nipped and conveyed by the threshing feed chain 16 and the nipping rail 17. The threshing-processed cereals are nipped and conveyed to the rear side of the machine body by a waste conveying chain 27 and a nipping rail 28.

  In the series of transport paths from the pretreatment unit 3 to the waste transporting unit 5, the handling depth for detecting the amount of grain transported by the preprocessing unit 3, the threshing unit 4 and the waste transporting unit 5. A main switch 12, a potentiometer 21 and a potentiometer 29 are provided, and each conveyance amount information is displayed on the display unit 34 of the driving operation unit 2 based on the detected values.

  The operator operates the continuously variable transmission lever 34 according to the carry amount information of the cereal and shifts the vehicle speed to avoid clogging of the cereal before the work efficiency is improved and the cereal carry amount is reduced. It can prevent that threshing performance deteriorates too much.

  In addition, since the amount of culm of the preprocessing unit 3, the threshing unit 4 and the scouring and transporting unit 5 is displayed side by side on the display unit 34, the respective transport amount information can be compared and where in the transport route is clogged. I can see the trend.

  Moreover, since the display part 39 was provided in the side cover 38 of the threshing part 4, and the threshing part 4 and the cereal conveyance amount of the scouring conveyance part 5 were displayed on the display part 39, the worker who is carrying out a handling operation conveys. It can be supplied with an appropriate amount of cereal conveyance while viewing the quantity information, and it can be prevented that the threshing performance is deteriorated due to a large supply amount.

  Moreover, the mounting position and quantity of the main switch 12, the potentiometer 21 and the potentiometer 29 for detecting the amount of grain transport are not limited to the configuration of this embodiment, and are provided only in places where the transport path is likely to be clogged. Also good.

  In addition, the display units 34 and 39 may display conveyance amount information such as “appropriate”, “large”, and “danger” instead of displaying the cereal conveyance amount.

FIG. 5 is an enlarged view showing another display form of the display unit 34 of the instrument panel 33, and FIG. 6 is a flowchart showing display switching control of the display unit 34.
In the case of FIG. 5, when the handling depths detected by the main switch 12, the potentiometer 21, and the potentiometer 29 are in an appropriate state (blue zone), the grain feeding amount is set as shown in FIG. 4. When the amount of cereal conveyance amount of the main switch 12, the potentiometer 21 and the potentiometer 29 exceeds the appropriate state, the display is changed to the cereal conveyance amount display as shown in FIG. It is configured to display the inspection location or treatment.

Specific display switching control will be described.
FIG. 6 shows the display switching control of the display unit 34 when the threshing amount of the threshing unit 4 exceeds an appropriate state.

First, it is determined whether the threshing amount of the threshing unit 4 is appropriate (blue zone) in S1, and if it is appropriate, the process proceeds to S2, and the display unit 34 displays the cereal conveying amount.
In S1, when it is determined that the amount of cereals transported by the threshing unit 4 has exceeded the appropriate state, the process proceeds to S3, where it is determined whether the threshing unit 4 is in the first warning area (yellow zone initial stage), which is the first warning area. In this case, the process moves to S4, and the display on the display unit 34 is switched to “caution for threshing feed chain” (FIG. 5) to sound an alarm (single tone).

  In S3, when it is determined that the amount of grain mash transported by the threshing unit 4 has exceeded the first warning zone, the process moves to S5 to determine whether the threshing unit 4 is in the second warning zone (yellow zone middle period). If it is, the process moves to S6, the display on the display unit 34 is switched to “Please reduce the vehicle speed”, and an alarm (single tone) is sounded.

  In S5, when it is determined that the amount of cereals transported by the threshing unit 4 exceeds the second warning zone, the process moves to S7 to determine whether the threshing unit 4 is the third warning zone (late yellow zone), and the third warning zone. If it is, move to S8, change the display on the display unit 34 to “Please stop threshing”, sound an alarm (single tone), then determine whether the threshing unit 4 has been stopped in S9, and stop the threshing unit 4 If it is, the process moves to S10, and the display on the display unit 34 is switched to “Please remove the threshing feed chain / check the evacuation belt”.

In S7, when it is determined that the threshing amount of the threshing unit 4 has exceeded the third warning zone (red zone), the process proceeds to S11, the engine is urgently stopped, and then the process proceeds to S12. Switch the display to “Clog thresh feed chain / please remove / confirm drainage belt” and sound an alarm (continuous tone).
Therefore, normally, the amount of cereal transported is displayed, so it is possible to catch clogs and avoid clogging in advance, and in the event of an abnormality, the inspection location or treatment is displayed preferentially, so even if clogging occurs Is easy.

FIG. 7 is a plan view showing a knotter attached to the rear of the combine body, and FIG. 8 is a rear view thereof. The knotter N is converged on the converging unit S, the conveying device 41 that conveys the cereal conveyed by the waste conveying chain 27, the scraper 42 that scrapes the cereal conveyed by the conveying device 41 into the converging unit S, and the converging unit S. It comprises a bundling device 44 for bundling cereal grains.
The transport device 41, the scraping device 42, and the bundling device 44 are integrally configured, and are supported by a rectangular support frame frame 45 attached to the machine body side of the combine so as to be slidable left and right. By driving the motor 46, the screw 47 is moved forward and backward to slide left and right, and the culm binding position can be changed. A stroke sensor 48 is provided across the gear case of the scraping device 42 and the support frame 45 and detects the left and right positions of the knotter N.

  43 is a root aligning device that beats and aligns the stocks of cereals that are stirred into the converging part S. The root aligning device 43 is also supported by the support frame frame 45 so as to be slidable left and right as in the case of the knotter N. By moving the screw 50 forward and backward by driving, the slide movement is made to the left and right. 51 is a stock detection device for detecting the stock position of the cereal that is integrally formed with the root alignment device, and the root alignment device 43 automatically detects the cereal of the cereal based on the detection of the stock detection device 51. The left / right slide movement is controlled according to the stock position. A stroke sensor 52 is provided across the root aligning device 43 and the support frame 45 and detects the left and right positions of the root aligning device 43.

Further, the knotter N and the root aligning device 43 are configured to automatically move so as to improve the left-right balance of the airframe when not in a normal cutting operation state.
FIG. 9 is a flowchart showing knotter slide movement control.

  First, it is determined in S1 whether the threshing unit 4 is driven (whether it is in a cutting operation state), and if the threshing unit 4 is stopped, the process proceeds to S2. Next, in S2, it is determined whether the fullness sensor provided in the Glen tank 53 disposed on the right side of the threshing unit 4 on the traveling machine body 1 is ON or OFF. Since the right side of the machine is heavy when the fullness sensor is turned on, the knotter N and the root alignment device 43 are moved to the left end. That is, in S3, it is determined whether the knotter N and the root alignment device 43 are at the left end. If not, the current values A and B of the stroke sensors 48 and 52 are recorded in S5, and F = 1 is substituted in S6. In S7, the electric motors 46 and 49 are driven to move the knotter N and the root alignment device 43 to the left end.

  If the Glen tank where the fullness sensor is turned off in S2 is empty, the left side of the aircraft is heavy, so the knotter N and the root alignment device 43 are moved to the right end. That is, in S8, it is determined whether the knotter N and the root alignment device 43 are at the right end. If not, the current values A and B of the stroke sensors 48 and 52 are recorded in S10, and F = 2 is substituted in S11. In S12, the electric motors 46 and 49 are driven, and the knotter N and the root alignment device 43 are moved to the right end.

When it is determined in S1 that the threshing unit 4 is driven, it is determined in S13 whether F = 1 or 2 (the notch N and the root alignment device 43 are the left end position or the right end position), and F = 1 or 2 If so, in order to return the knotter N and the root alignment device 43 to the normal working position, the electric motors 46 and 49 are moved to the positions of the stroke sensor values A and B recorded in S5 or S10, respectively, and F = 0 is set. substitute.
In S4 and S9, when the notch N and the root aligning device 43 are at the left end or the right end, the stroke sensor value is recorded when the fullness sensor is switched from ON to OFF or from OFF to ON. To prevent.

Therefore, since the machine balance is improved by sliding the knotter N and the root aligning device 43 to the left and right other than the normal cutting operation, the running performance and stability of the machine are improved.
Further, since the normal cutting operation automatically returns to the work position, there is no need for readjustment.

It is a side view which shows a combine. (A) It is an enlarged view which shows a driven sprocket. (B) It is an enlarged view which shows the conventional driven sprocket. It is a perspective view which shows a driving | operation operation part. It is an enlarged view which shows an instrument panel. It is an enlarged view which shows the other display form of a display part same as the above. It is a flowchart figure which shows the display switching control of a display part. It is a top view which shows a knotter. It is a rear view same as the above. It is a flowchart figure which shows the slide movement control of a knotter.

Explanation of symbols

12 Handling depth main switch (detection means)
21 Potentiometer (detection means)
29 Potentiometer (detection means)
30 Display section

Claims (3)

A pretreatment unit that cuts and conveys the cereal, and a threshing unit that inserts the tip side into the inside of the handling chamber while sandwiching and conveying the stock side of the cereal that is delivered from the pretreatment unit, In the combine provided with a waste conveying unit that inherits the threshed cereal and conveys it to the rear of the machine, the combine includes a detection unit that detects the amount of cereal conveyance in the conveyance path of the cereal, and the detection of the detection unit The combine provided with the display means which displays the conveyance amount information of a corn straw based on a value. 2. The combine according to claim 1, wherein a plurality of detection means are provided in the cereal conveyance path, and the conveyance amount information at a plurality of locations is displayed by the display means. 2. The hand-working operation in which an operator supplies hand-harvested grain straw to the starting end of a threshing feed chain, and a display means is provided at a position that can be visually recognized by the worker during the hand-handling work. Combine.

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