JP3842469B2 - Combine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a combine.
[0002]
[Prior art]
As a conventional combine, a traveling part is disposed at the lower part of the body frame, a cutting part is disposed at the front end of the body frame, and the cutting part is synchronized with a traveling speed detected by a vehicle speed sensor provided in the traveling part. Was driving the cutting drive shaft.
[0003]
The amount of cereals flowing into the cutting part increases or decreases according to the traveling speed, but by driving the reaping part in synchronization with the traveling speed, the cutting operation can be smoothly performed according to the amount of cereal flowing in. I was doing.
[0004]
[Problems to be solved by the invention]
However, in the above-described conventional combine, there is no means for detecting when the vehicle speed sensor has failed, so the operator does not notice that the vehicle speed sensor has failed, and an abnormal detection signal from the vehicle speed sensor. Therefore, the mowing part is driven, and there is a possibility that the mowing operation cannot be performed smoothly.
[0005]
[Means for Solving the Problems]
Accordingly, in the present invention as set forth in claim 1, a vehicle speed sensor for detecting a traveling speed in a combine in which a traveling portion is disposed at a lower portion of the body frame and a cutting portion is disposed at a front end portion of the body frame. And a shift lever neutrality detecting means for detecting that the shift lever for switching between forward and backward movement is in a neutral position, a culm inflow detecting means for detecting the inflow of the culm, and a reaping drive shaft for driving the reaping part A rotation sensor for detecting the number of rotations, and detecting that the shift lever is not in the neutral position by the shift lever neutrality detecting means, and that the culm has not flowed into the cutting part by the culm inflow detecting means In addition, the vehicle speed sensor detects the traveling speed when the cutting rotation shaft detects that the cutting drive shaft is rotating. When not possible, and so it is determined that the failure of the vehicle speed sensor.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
The combine which concerns on this invention arrange | positions a cutting part in the front-end part of a body frame while arrange | positioning a traveling part in the lower part of a body frame.
[0007]
In addition, the vehicle speed sensor for detecting the traveling speed and sensor failure detection means for detecting the failure of the vehicle speed sensor are provided.
[0008]
Therefore, it is possible to notify the operator that the vehicle speed sensor is out of order, and the cutting operation can be performed smoothly without driving the cutting unit based on an abnormal detection signal of the vehicle speed sensor. Is.
[0009]
In particular, the shift lever neutral detecting means for detecting that a sensor failure detecting means, the shift lever for switching the forward and backward is in the neutral position, the culms flow detecting means for detecting the flow of culms, reaper comprising a cutting speed sensor for detecting the rotational speed of the cutting drive shaft for driving the, along with the shift lever by the shift lever neutral detecting means detects that not in the neutral position, the reaper by culms flow detecting means When it is detected that cereals are not flowing, and when the cutting drive shaft is detected to rotate by the cutting rotation sensor, if the traveling speed cannot be detected by the vehicle speed sensor, it is determined that the vehicle speed sensor is malfunctioning. Therefore, when the combine is in the running state, the vehicle speed sensor is broken by the sensor failure detection means. It becomes possible to determine whether dolphins not one in which the failure of the vehicle speed sensor can be reliably detected.
[0010]
Further, a control device for controlling the operation of the traveling unit and the cutting unit is provided, and the control device is for controlling the operation of the traveling unit for controlling the operation of the traveling unit and the operation of the cutting unit. It is composed of a mowing sub-control unit and a general control unit for controlling and controlling each sub-control unit. In addition, the general control unit and each sub-control unit are connected in a loop by a signal line. Since the sensor failure detection means is provided in the control unit, if the vehicle speed sensor breaks down, it is detected by the sensor failure detection means and notified to the overall control unit and from the overall control unit to each sub-control unit. It is possible to prevent each sub-control unit from performing erroneous control based on the detection signal of the vehicle speed sensor.
[0011]
【Example】
Embodiments of the present invention will be described below with reference to the drawings.
[0012]
FIGS. 1 and 2 show a combine A according to the present invention. The combine A is provided with a body frame 1 on a vehicle body, and a pair of left and right crawler type traveling sections 2,2 are provided at the lower part of the body frame 1. FIG. It arranges and attaches the cutting part 3 to the front end of the body frame 1 so that it can be raised and lowered, and provides a threshing part 4 immediately after the cutting part 3, and a slaughtering part 5 immediately after the threshing part 4. On the other hand, an operating unit 6 is provided at the front right side of the machine body frame 1, and a shell storage tank 7 is provided immediately after the operating unit 6. 8 is a feed chain provided on the upper left side of the threshing unit 4.
[0013]
And combine A makes it possible to thresh the cereals by the reaping part 3 while traveling in the field, and the threshing part 4 can thresh the harvested cereals .
[0014]
As shown in FIG. 1, the traveling unit 2 has a traveling frame 108 attached to the lower part of the body frame 1, and a pair of left and right drive sprockets 109 are disposed at the front end of the traveling frame 108, while the rear end of the traveling frame 108 A pair of left and right driven sprockets 110 is arranged in the section, and a crawler belt 111 is suspended between the drive sprocket 109 and the driven sprocket 110, and a rotary encoder as a vehicle speed sensor 112 is connected to the drive shaft of the drive sprocket 109. is doing. In the figure, 113 is a rolling wheel.
[0015]
As shown in FIG. 1, the cutting unit 3 has a cutting frame 11 attached to an upper end of a support column 10 erected on the left front end of the machine body frame 1 so as to be rotatable up and down.
[0016]
As shown in FIGS. 3 and 4, the cutting frame 11 is configured so that a cylindrical rotating support shaft 12 extending in the left-right width direction can be rotated around the axis between the upper ends of the pair of left and right supports 10, 10. A cylindrical lower horizontal frame 14 that extends horizontally and extends from the right side of the pivotal support shaft 12 to the front and lower side and extends in the left-right width direction at the lower end of the vertical frame 13. Attach the middle part, raise the cylindrical rising frames 15 and 15 from the left and right ends of the lower horizontal frame 14 to the front and upper side, and place the upper horizontal frame 16 horizontally between the upper ends of both frames 15 and 15 And an upper connecting frame 17 that curves upwardly between the middle portion of the upper horizontal frame 16 and the upper portion of the vertical frame 13, while the left and right sides and the center of the lower horizontal frame 14 The connecting frames 18 are formed so as to extend forward from the respective portions. The rotary support shaft 12 is coupled to a cutting unit lifting motor as a lifting mechanism 9. In the figure, 19 is a lower carrier support frame.
[0017]
In the cutting frame 11 described above, a total of seven weeding plates 20 for weeding the six rows of cereals to be planted are installed at regular intervals in the left-right width direction. The cereal groin raising device 21 that causes the six cereal cereals, the cereal squeezing device 22 that stirs the stock of the six cereal cereals caused by the cereal culm raising device 21, and the A cutting blade device 23 that reaps the stock of the cereal that has been scraped by the device 22, a lower conveying device 24 that transports the lower part of the six-row cereal that has been cut by the cutting blade device 23 to the threshing unit 4 side, From the upper conveying device 25 for conveying the upper part of the cereal to the threshing unit 4 side, the tip conveying device 26 for conveying the ear part of the cereal masher, and the feed chain 8 of the threshing unit 4 from the upper and lower conveying devices 25, 24 An auxiliary conveying device 27 for assisting in passing the cereals is attached.
[0018]
As shown in FIG. 5, the cutting blade device 23 is linked to the traveling drive transmission section 78 via a cutting drive shaft 50, and operates in synchronization with the traveling speed. A rotary encoder as a cutting rotation sensor 91 for detecting the rotation speed of the cutting drive shaft 50 is connected to the cutting drive shaft 50.
[0019]
Therefore, the amount of cereals flowing into the reaping unit 3 increases or decreases in accordance with the traveling speed, but by driving the reaping unit 3 in synchronization with the traveling speed, the reaping operation is smoothly performed in accordance with the amount of cereals flowing in. Yes.
[0020]
Hereinafter, each device attached to the cutting frame 11 will be specifically described.
[0021]
The grain raising device 21 has a total of six raising cases 30 extending in the vertical direction at a position immediately behind between the weed plates 20 and 20 adjacent to the left and right. A total of six pulling drive cases 66 are interposed between the upper horizontal frame 16 and a pulling mechanism 31 in which a large number of pulling tines 31a are mounted in each pulling case 30 so as to be able to rotate in the vertical direction. In addition, the pulling mechanism 31 is configured so that each pulling tine 31a advances when it moves up and down and retracts when it moves downward.
[0022]
The cereal scraping device 22 is disposed at a position immediately after each of the pulling cases 30 with a tine-incorporating belt 32 and a star wheel 33 facing each other vertically.
[0023]
The lower conveying device 24 sandwiches the lower part of the left side of the two cereals and conveys it backward, and conveys it to the rear by sandwiching the lower part of the left part of the cereals of the middle part and the lower part. A central lower transport mechanism 35, a right lower transport mechanism 36 that sandwiches the lower part of the right side of the two halves and transports backward, and a lower part of the cereals transported by these transport mechanisms 34, 35, 36 And a vertical transport mechanism 37 that transports the feed chain 8 to the feed chain 8.
[0024]
The transport mechanisms 34, 35, and 36 are basically composed of transport chains 34a, 35a, and 36a, and sandwiching bodies 34b and 35b disposed so as to face the grain culm transport paths of the transport chains 34a, 35a, and 36a. 36b, and is configured so as to sandwich the cereals by the transfer chains 34a, 35a, 36a and the sandwiching bodies 34b, 35b, 36b, and in the middle of each transfer chain 34a, 35a, 36a In addition, corn straw inflow detecting means 90a, 90b, 90c for detecting that the corn straw has flowed into the cutting unit 3 are provided. The vertical transport mechanism 37 is configured similarly.
[0025]
In addition, as shown in FIG. 4, cereal detection bodies 85 a, 85 b, 85 c are rotatably attached to the lower transport mechanisms 34, 35, 36, and the cereal detection bodies 85 a, 85 b, 85 c are In addition, the cereals conveyed by the respective lower conveying mechanisms 34, 35, and 36 rotate the cereal detection bodies 85a, 85b, 85c so that the rotation can be detected and the number of cutting lines can be detected. It is.
[0026]
Further, the vertical transport mechanism 37 has a start end portion located below the cereal passage P, and sandwiches the lower part of the cereal that has been transported by the left and right side lower transport mechanisms 34, 36 and merged in the culm passage P. Thus, the feed chain 8 is reliably conveyed.
[0027]
The upper transport device 25 has a left upper transport mechanism 38 that rakes up the upper part of the left-side cereals and transports it to the rear, and a center that rakes the upper part of the two cereals in the center and transports it backwards. It has an upper transport mechanism 39 and a right upper transport mechanism 40 that rakes up the upper part of the right side portion of the cereal rice cake and transports it to the rear. The right upper transport mechanism 40 includes a front transport body 41 and a rear side. The carrier 42 is divided into two parts.
[0028]
A large number of transport tines 38a, 39a, 41a are attached to the transport mechanisms 38, 39 and the front transport body 41 so as to be capable of turning in the front-rear direction, and the transport tines 38a, 39a, 41a advance when moving backward. In addition, it is attached so as to retract when moving forward, and the rear conveyance body 42 has the same configuration.
[0029]
The left upper transport mechanism 38 is a left lower transport mechanism 34, the central upper transport mechanism 39 is a central lower transport mechanism 35, the front transport body 41 is a right lower transport mechanism 36, and the rear transport body 42 is a vertical transport mechanism 37. Are arranged so as to face each other in the vertical direction so that the upper and lower parts of the cereal are securely held and conveyed.
[0030]
The tip transfer device 26 includes a left tip transfer mechanism 43, a central tip transfer mechanism 44, and a right tip transfer mechanism 45. These tip transfer mechanisms 43, 44, 45 are located immediately after the star wheel 33. In the position, above each of the left upper transport mechanism 38, the central upper transport mechanism 39, and the front transport body 41, and with each of these cereal transport paths between each transport mechanism 38, 39 and the front transport body 41, It arrange | positions in the position which opposes, and is trying to convey the head part of the grain straw for two strips, respectively.
[0031]
The tip transport mechanisms 43, 44, and 45 are linked to a tip transport drive case 68 formed by extending downward from the three drive drive cases 66 in the six drive drive cases 66. In addition, a plurality of transfer tines 43a, 44a, 45a are attached to each tip transfer mechanism 43, 44, 45 so as to be able to turn in the front-rear direction, and the transfer tines 43a, 44a, 45a advance when moving backward, and It is configured to retreat when moving forward.
[0032]
The auxiliary transport device 27 is disposed between the end side portion of the vertical transport mechanism 37 and the end side portion of the rear transport body 42 and is disposed close to the start end side portion of the feed chain 8. The transport device 27 is configured in the same manner as the transport mechanisms 34, 35, 36, and 37 of the lower transport device 24, and delivers and transports the middle part of the cereal to the feed chain 8.
[0033]
Next, a power transmission mechanism B for transmitting power from the engine E mounted on the body frame 1 to each device provided in the cutting unit 3 will be described with reference to FIG.
[0034]
To the grain raising device 21, the engine E → the transmission unit M → the cutting drive shaft 50 → the cutting clutch 128 → the vertical transmission shaft 60 → the lower lateral transmission shaft 63 inserted into the lower lateral frame 14 → the rising frame 15 Of the rising transmission shaft 64 inserted into the upper lateral frame 16 → the upper lateral transmission shaft 65 inserted into the upper lateral frame 16 → the pulling drive shaft 67 inserted into the driving case 66 → the pulling output shaft 81 → the grain raising device 21 Power is transmitted as follows.
[0035]
Derived from the pulling drive shaft 67, power is transmitted to the tip conveying device 26 in the following manner: the raising drive shaft 67 → the tip conveying drive shaft 69 → the tip conveying output shaft 82 → the tip conveying device 26.
[0036]
Power is transmitted to the feed chain 8 as follows: engine E → mission unit M → feed chain clutch 129 → feed chain drive shaft 54 → feed chain 8.
[0037]
The auxiliary transport device 27, the rear transport body 42, the lower right transport mechanism 36, and the culm scraping device 22 are derived from the vertical transmission shaft 60, and the vertical transmission shaft 60 → auxiliary / rear transport drive shaft 61 → Auxiliary / rear transport rising shaft 70 → Power is transmitted like auxiliary transport device 27 and rear transport body 42, and vertical transmission shaft 60 → right lower transport drive shaft 71 → right lower transport mechanism 36 → waste flour Power is transmitted as in the case of the insertion device 22, and further, the right lower conveyance drive shaft 71 → the front conveyance drive shaft 72 → derived from the right lower conveyance drive shaft 71 to the front conveyance body 41 and the vertical conveyance mechanism 37 → Power is transmitted as in the front conveyance body 41, and power is transmitted in the following manner: right lower conveyance drive shaft 71 → vertical conveyance first drive shaft 73 → vertical conveyance second drive shaft 74 → vertical conveyance mechanism 37.
[0038]
Derived from the lower lateral transmission shaft 63 to the cutting blade device 23, power is transmitted as follows: lower lateral transmission shaft 63 → cutting blade drive shafts 75, 75 → cutting blade devices 23,23.
[0039]
The left upper / lower transfer mechanism 38, 34 and the central upper / lower transfer mechanism 39, 35 are derived from the rising transmission shaft 64, and the rising transmission shaft 64 → left upper / lower transfer drive shaft 76 → left upper / lower. The power is transmitted in the manner of the conveyance rising shaft 77 → the left upper / lower conveyance mechanisms 38, 34 → the central lower conveyance mechanism 35 → the central upper conveyance mechanism 39.
[0040]
In addition, the mission unit M is interlocked and connected via a travel drive transmission unit 78 and a travel drive transmission mechanism 79, and is also interlocked and connected via a handling cylinder 4a provided in the threshing unit 4 and a handling cylinder drive transmission mechanism 80. ing.
[0041]
The combine A includes a control device C for controlling the operations of the traveling unit 2, the reaping unit 3, the threshing unit 4, and the exclusion processing unit 5.
[0042]
As shown in FIG. 6, the control device C includes a traveling sub-control unit C <b> 2 for controlling the operation of the traveling unit 2, a cutting sub-control unit C <b> 3 for controlling the operation of the cutting unit 3, and a threshing unit. 4 for controlling the operation of the threshing, 4 for controlling the evacuation processing unit 5 for controlling the operation of the evacuation processing unit 5, and each of the sub-control units C2, C3, C4. , C5 is composed of an overall control unit C1 for overall control.
[0043]
The overall control unit C1 is connected to a display unit D for displaying the operating state and setting state of each unit 2, 3, 4, 5 and sensor failure detection for detecting a failure of the vehicle speed sensor 112 described later. Means 92 is connected.
[0044]
Each sub-control unit C2, C3, C4, C5 has various sensors S2, S3, S4, S5 and various actuators A2, A3, A4, A5 as typified by a travel speed sensor and a mowing unit lifting motor actuator. Each is connected.
[0045]
As shown in FIG. 6, the overall control unit C1 and the sub-control units C2, C3, C4, and C5 are connected in a loop by signal lines L1, L2, L3, L4, and L5. Control signals can be communicated bidirectionally by communication circuits (not shown) built in C1, C2, C3, C4, and C5.
[0046]
That is, the control signals are shown in FIG. 6 as general control unit C1 → running sub control unit C2 → cutting sub control unit C3 → threshing sub control unit C4 → removal processing sub control unit C5 → general control unit C1. Control signal transmission path R1 that transmits counterclockwise and general control unit C1 → sub-control unit for slaughter processing C5 → sub-control unit for threshing C → sub-control unit for cutting C3 → sub-control unit for traveling C2 → general control Like the part C1, two control signal transmission paths R1 and R2 are formed together with a control signal transmission path R2 for transmitting a control signal clockwise in FIG.
[0047]
As shown in FIG. 7, the sensor failure detection unit 92 connects the vehicle speed sensor 112 to the input port 93a of the CPU 93 of the overall control unit C1, and connects the cutting rotation sensor 91 to the output port 93b of the CPU 93. Between the output port 93c of the CPU 93 and the ground terminal G, there is provided a shift lever neutrality detecting means 94 for detecting that the shift lever for switching between forward and backward movement is in a neutral position, and a culm flow detection means 90a, 90b, 90c. While connecting in parallel, the shift lever neutrality detection means 94 and the culm flow detection means 90a, 90b, 90c are connected to the input port 93d of the CPU93 , and the cutting port 128 is operated to the output port 93c of the CPU93 . A mowing clutch operating circuit 95 is connected. In the figure, V is a power supply terminal, 96 is a clutch motor for connecting / disconnecting the cutting clutch 128, 97 is a cutting clutch relay, 98 is a motor driving relay, and 99 is a circuit disconnecting relay.
[0048]
When the shift lever neutrality detecting means 94 detects that the shift lever is in the neutral position, or when it is detected by the culm inflow detection means 90a, 90b, 90c that the culm is flowing into the cutting part 3 The output signal output from the output port 93c of the CPU 93 is input to the input port 93d of the CPU 93, and the reaping clutch relay 97 and the motor drive relay 98 are activated by the output signal, and accordingly the clutch motor 96 is activated so that the mowing clutch 128 is engaged.
[0049]
The sensor failure detecting means 92, together with the shift lever by the shift lever neutral detecting means 94 detects that not in the neutral position, culms flow detection means 90a, 90b, does not flow into culms the reaper 3 by 90c If the vehicle speed sensor 112 cannot detect the running speed when the cutting rotation sensor 91 detects that the cutting drive shaft 50 is rotating, it is determined that the vehicle speed sensor 112 is malfunctioning. I have to.
[0050]
When the shift lever is in the neutral position or when the cereal is flowing in, the cutting clutch 128 is connected and the cutting unit 3 is operating, but even in that case, the combine A may not be traveling. There is a possibility that the combine A is running when the shift lever is not in the neutral position, the cereal is not flowing in, and the cutting drive shaft 50 is rotating. Yes. In this case, since the traveling speed cannot be detected by the vehicle speed sensor 112, it becomes clear that the vehicle speed sensor 112 is out of order.
[0051]
In this way, the sensor failure detection means 92 can reliably determine whether or not the vehicle speed sensor 112 has failed.
[0052]
Since the sensor failure detection means 92 is connected to the overall control unit C1, if the vehicle speed sensor 112 fails, it is detected by the sensor failure detection means 92 and notified to the overall control unit C1. The control unit C1 can notify the sub-control units C2, C3, C4, and C5, and the sub-control units C2, C3, C4, and C5 perform erroneous control based on the detection signal of the vehicle speed sensor 112. Can be prevented in advance.
[0053]
Further, when the sensor failure detecting means 92 detects that the vehicle speed sensor 112 is broken, a warning is displayed on the display section D to notify the operator that the vehicle speed sensor 112 is broken. Therefore, based on the abnormal detection signal of the vehicle speed sensor 112, the cutting unit 3 is not driven and the cutting operation can be performed smoothly.
[0054]
【The invention's effect】
The present invention is implemented in the form as described above, and has the following effects.
[0055]
In the present invention the 請 Motomeko 1, wherein the vehicle speed sensor for detecting the traveling speed, and the shift lever neutral detecting means for detecting that the shift lever for switching the forward and backward is in the neutral position, the flow of culms A culm inflow detecting means for detecting and a cutting rotation sensor for detecting the rotational speed of the cutting drive shaft for driving the cutting unit, and the shift lever neutrality detecting means detects that the shift lever is not in the neutral position. When detecting that the culm has not flowed into the reaping part by the culm inflow detection means and detecting that the reaping drive shaft is rotating by the reaping rotation sensor, the vehicle speed sensor detects the running speed. If the vehicle speed sensor cannot be detected, it is determined that the vehicle speed sensor is malfunctioning, so the worker is informed that the vehicle speed sensor is malfunctioning. Based on the abnormal detection signal of the vehicle speed sensor, the cutting part is not driven, the cutting operation can be performed smoothly, and when the combine is in the running state, the vehicle speed sensor Can be reliably detected.
[0056]
[Brief description of the drawings]
FIG. 1 is a left side view of a combine according to the present invention.
FIG. 2 is a plan view of the same.
FIG. 3 is a side view of a cutting part.
FIG. 4 is a front view of the same.
FIG. 5 is an explanatory diagram showing a combine driving mechanism.
FIG. 6 is an explanatory diagram showing a control device.
FIG. 7 is an explanatory diagram showing sensor failure detection means.
[0057]
[Explanation of symbols]
A Combine 1 Machine frame 2 Traveling section 3 Harvesting section 4 Threshing section 5 Waste disposal section 6 Driving section 8 Feed chain
90a, 90b, 90c cereal inflow detection means
91 Cutting rotation sensor
92 Sensor failure detection means
94 Shift lever neutrality detection means
112 Vehicle speed sensor

Claims (1)

In the combine which arranges a run part in the lower part of an airframe frame, and arranges a cutting part in the front end part of an airframe frame,
A vehicle speed sensor for detecting the running speed,
Shift lever neutrality detecting means for detecting that the shift lever for switching forward and backward is in the neutral position;
Cereal inflow detection means for detecting inflow of cereal,
A cutting rotation sensor for detecting the rotational speed of the cutting drive shaft that drives the cutting unit;
The shift lever neutrality detecting means detects that the shift lever is not in the neutral position, and the pestle inflow detection means detects that no culm is flowing into the reaping part, and the reaping rotation sensor rotates the reaping drive shaft. When it is detected that the vehicle speed sensor cannot detect the traveling speed, the combiner determines that the vehicle speed sensor is malfunctioning.

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