JPH07312907A - Device for preventing operation mistake of reaping and traveling for combine harvester - Google Patents

Abstract

PURPOSE:To prevent spin turn of a machine body during reaping even by operation mistake and to make operation safe. CONSTITUTION:In a combine harvester equipped with a spin turn operating member for making a machine body undergo spin turn in switching on a spin turn switch through a control circuit, a detecting sensor S for discovering the existence of standing grain culms is laid at a proper part of the machine body and the spin turn switch is turned off when the detecting sensor S is connected to the control circuit and the detecting sensor S is switched on.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an erroneous operation preventing device during a mowing traveling in a combine equipped with a spin turn actuating member that spins the machine when the spin turn switch is turned on through a control circuit. .

[0002]

2. Description of the Related Art Conventionally, spin turn operation is a control of vehicle speed,
That is, the aircraft is inactive while traveling at high speed, and the aircraft is moving left and right. When the vehicle is tilted back and forth, it is not activated to prevent accidents such as the body falling over during a spin turn.
However, during the slicing work in which the shunting board is divided between the rows of planted culms and weeded, it is often the case that the worker accidentally spin-turns and spreads the planted culms. Crowded,
An unforeseen situation has occurred, such as hitting an assistant running in parallel with the aircraft.

[0003]

SUMMARY OF THE INVENTION In view of the above situation, the present invention is designed so that the machine body does not spin-turn during mowing even if a mistaken operation is performed so that the above-mentioned unexpected situation does not occur. It was invented for the purpose of improving work safety.

[0004]

SUMMARY OF THE INVENTION In order to achieve the object described above, the present invention provides a spin turn actuating member which spins the body when a spin turn switch is turned on via a control circuit. In the combine equipped with the above, a detection sensor for detecting the presence of the planted culm is provided at an appropriate position of the machine body, the detection sensor is connected to a control circuit, and when the detection sensor is turned on, the circuit of the spin tune switch is turned on. O
It is characterized in that it is configured as an FF.

[0005]

[Operation] As a result, the spin turn switch is turned on when the combine harvester is put into the field to carry out the mowing work.
Then, the machine is spin-turned by the spin turn actuating member so that the sprouting board is inserted between the rows of planted culms and the machine is advanced and the threshing is performed. The detection sensor detects the presence of the grain culm during the mowing work by advancing the machine body.
Then, the control circuit sends the information to the control circuit, and the control circuit turns off the spin turn switch based on the information. Therefore, even if an operator accidentally turns on the spin turn switch, the spin turn switch is turned on. The operation member does not operate, and the machine body does not spin-turn, but the cutting operation is performed while continuing to move forward.

Then, when the machine body passes from the end of the row of planted grain culms, the detection sensor is turned off due to the absence of the planted grain culm to notify the control circuit that the spin turn operating member is in an operable state. Then, by turning on the spin turn switch, the machine spin-turns, and the vegetation board enters between the return-planted grain culm rows to restart the cutting operation.

[0007]

The present invention will be described below with reference to the drawings. In the figure, (1) is a truck frame equipped with a traveling crawler (2), (3) is a machine frame installed on the truck frame, and (A) is a feeder chain (4) on the left side. Threshing section which is stretched around and incorporates a handling cylinder (5) and a processing cylinder (6), (B)
Is a grass plate (7), a raising case (8) and a cutting blade. A mowing unit equipped with a grain culm transport mechanism and the like, (9) a straw processing unit for looking into the end portions of the straw chains (10), (11),
(12) is a driver unit including a driver's seat (13) and a driver operation unit (14), (15) is an engine unit in which an engine (16) is installed, and (17) is a front part of the engine unit (15). The grain from the threshing section (A) is arranged and the grain is fried (18)
And (19) is a discharge ogre that takes out the grains in the grain tank (17), and is configured to continuously cut and thresh the planted culms. There is.

Next, as shown in FIG. 4 and FIG.
The vehicle speed of the combine is changed by a variable displacement hydraulic pump (21) and a hydraulic motor (22) which form a continuously variable transmission mechanism (20) which is an HST, and an engine (16).
The output shaft (16a) of the belt and the gear transmission mechanism (2
3) via the input shaft (21) of the hydraulic pump (21)
The transmission case (25) having the drive sprocket (24) of the traveling crawler (2), which is linked with a).
And an output shaft (22a) of the hydraulic motor (22) are interlocked with each other, and a handle barrel input shaft (5a) of the handle barrel (5).
Is linked to the output shaft (16a) of the engine (16) via a belt and a gear transmission mechanism (26).

Further, the engine (16) has an electronic governor (27) for keeping the rated rotational speed (N) constant by controlling the fuel injection amount of the fuel injection pump with an injection amount adjusting rack. The hydraulic pump (21) is a vehicle speed control member D that controls the swash plate angle to adjust the hydraulic discharge amount.
It has a C-type servo motor (28), and is configured so as to perform acceleration / deceleration control of the vehicle speed by forward / reverse driving of the motor (28).

Further, in the transmission case (25), the output shaft (22a) of the hydraulic motor (22) is connected to the left and right side clutches (30a) via the auxiliary transmission gear (29).
(30b) and right and left side clutch shafts (32a) and (32b) equipped with left and right brakes (31a) and (31b) are interlockingly coupled, and left and right reduction gear shafts are connected to drive sprocket shafts (33a) and (33b) which are left and right axles. (34a)
The left and right side clutch shafts (32a) (3
2b) are linked together. Then, the left reduction gear shaft (34a) is connected to the clutch main shaft (36a) via the reverse rotation transmission shaft (35), and the right reduction gear shaft (34b) is connected to the clutch counter shaft (36b) in an interlocking manner, so that the clutch main shaft (36
a) and the sub shaft (36b) are connected to each other via a spin turn actuating member (37), which is a spin turn clutch, so that the side clutches (30a) (30b) and the brake ( When either one of 31a and 31b is "off", the left and right drive sprocket shafts (33a) (33b) are moved in opposite directions by setting the spin turn operation member (37) to "on". It is configured so that it is rotated so as to perform a spin turn of the airframe by the left and right traveling rollers (2).

Further, as shown in FIG. 6, the clutch cylinders (38a) (38b) for turning on / off the left and right side clutches (30a) (30b) and the left and right brakes (31a) (31b) are provided. The brake cylinders (39a) (39b) that are turned on and off, and the spin turn operation member (3
7) The solenoid valve (41a) (41b) (42a) (4) is connected to the spin turn cylinder (40) for turning on and off.
2b) A motor (44) drive type hydraulic pump (45) is connected to the circuit via the (43) and each switching valve (41a).
The electromagnetic switching operations of (41b), (42a), (42b) and (43) are used to open and close the left and right side clutches (30a) (30b), the brakes (31a) (31b), and the spin turn actuating member (37). I am trying to do it appropriately.

Then, as shown in FIG. 3, a fuzzy vehicle speed control circuit (46) for driving and controlling the servo motor (28) based on fuzzy inference, has an automatic switch (47) for automatically controlling the vehicle speed. ), A vehicle speed sensor (48) for detecting the vehicle speed, and an HST oil pressure sensor (49) are input and connected, and the vertical transfer device (5) of the reaper (B) is also provided.
0) and a grain culm sensor (51) for detecting grain culm conveyed to the threshing unit (A), and a reaping work clutch lever (5).
A work clutch switch (52) for detecting the input operation of 2a) is connected to the control circuit (46). Then, the governor control circuit (54) for driving and controlling the rack position adjusting mechanism (53) of the electronic governor (27) for adjusting the injection amount of the fuel injection pump includes the engine (1
Engine rotation sensor for detecting rotation in 6)-(55)
And a governor rack position sensor (56) for detecting the position of the injection amount adjusting rack in the governor (27) are input-connected, and the control circuits (46) and (54) are connected by communication. , These sensors- (48) (49) (5
1) Based on the detection of (55) and (56), the engine speed constant control and the vehicle speed control based on fuzzy inference are performed.

A shift position sensor (57) for detecting a shift position by operating the shift lever (57a).
And an automatic steering sensor (58) for controlling the steering of the machine by detecting the origin of the planted culm, and a spin turn switch (59) for spinning the machine. It is connected to (46) as an input, and each solenoid switching valve (41a) (41b) (42a) (42b) (4
3) and the indicator lamp (6
The control circuit (46) is connected to (0) and the control circuit (46) so as to spin the body when the spin turn switch (59) is turned on during automatic steering.

With this configuration, when the rack position data corresponding to the engine load (fuel injection amount) is input from the electronic governor (27) during the mowing operation, the relationship between the rack position and the engine speed is obtained. The target vehicle speed is inferred based on the maximum output map data represented by the maximum load curve, and the vehicle speed deviation of how much the current vehicle speed is increased or decreased is fuzzy inferred from the target vehicle speed and the rate of change of the vehicle speed, and the continuously variable transmission mechanism is used. The drive pulse, which is the shift amount of the servo motor (28) that shift-drives (20), is determined, and vehicle speed control is performed so that the engine load is appropriately maintained.

During the mowing operation as described above, the spin turn of the machine is performed when the spin turn switch (59) is turned on, as shown in FIGS. 7 and 8.
The operation is described by the flowchart of. Now, when the spin turn switch (59) is turned on, the spin turn control is performed, and when this switch (59) is turned off during the spin turn control, the driving of the shift is stopped and various data are initialized. The spin turn flag (FS) is set to 0 (FS = 0), and the shift position (SH) by the servo motor (28) when the spin turn switch (59) is ON is set to the neutral position (SH = 0), the spin turn solenoid switching valve (43) is turned off (spin turn actuating member (3
7) OFF), spin turn indicator lamp (60) O
Set to FF.

Then, the spin turn switch (59) O
When the flag (FS) immediately after N is 0, the shift position (S
H) to the current shift position of the shift lever (57a) (FS = 1), and when this shift position (SH) is in the reverse zone below (SH <R) below the reverse position (R), the reverse mode is selected. Spin turn at the shift position (S
H) is a forward movement zone that is more than the neutral position (N) (SH> N)
Spin mode in forward mode when
When the shift position (SH) is in the neutral zone other than these (R <SH <N), the spin turn is performed in the neutral mode.

In this way, the machine body spin-turns, but the presence of planted culms before cutting is in place in the machine body of this combine machine. The detection sensor (S) for detecting the absence is provided. That is, the detection sensor (S) includes a sensor box (61) and a sensor box (61).
And a cutting frame (6) below the case (8) for raising its sensor box (61).
The sensor arm (62) is attached to the portion (3) so as to project to the side and turned on when the planted culm is present, and turned off when the planted culm is absent.

Then, the detection sensor (S) is connected to the control circuit (46) as shown in FIG. 3, and the detection sensor (S) is turned on by the presence of the planted culm.
When doing so, the circuit of the spin turn switch (59) is turned off in preference to the ON operation of the spin turn switch (59), and when the detection sensor (S) is turned off, the spin turn switch (59) is turned on. The control circuit (4
The spin turn actuating member (37) is actuated via 6) to enable the spin turn of the machine body.

Further, this detection sensor (S) is shown in FIG.
As shown by phantom lines (a) and (b) in "Fig. 2", the front and rear of the left side of the machine, which is the uncut grain side, that is, the left side surface of the cutting cover (64) in the cutting section (B) Attach the sensor box (61) to the part and the rear part of the machine base (3),
The sensor arm (62) may be projected toward the outside of the machine body.

Then, during the mowing work in which the shunt board (7) is placed between the rows of planted cereals, the detection sensor
(S) is turned on due to the presence of grain stalks before cutting and sends this information to the control circuit (46) to detect the sensor (S) even if the operator mistakenly turns on the spin turn switch (59).
ON operation has priority and the circuit of the spin turn switch (59) is turned off, the spin turn actuating member (37) does not operate and the machine does not spin turn unexpectedly, the machine advances and the reaping work To continue.

Further, after the end of the row of planted grain culms, the detection sensor (S) is turned off due to the absence of grain culms, and the spinner is turned on.
Control circuit (4
The spin turn actuating member (37) is actuated via 6) and the spin turn of the airframe is performed.

Therefore, even if the spin turn switch (59) is erroneously operated during cutting, the aircraft will not spin turn, and the running culler ( As a result of 2), it is not possible to lay it down, and an assistant working in parallel with the aircraft can also work safely.

[0023]

As described above, according to the present invention, the spin turn switch (59) is turned on via the control circuit (46).
In a combine equipped with a spin turn actuating member (37) for spinning the machine during N operation, a detection sensor (S) for detecting the presence of planted culms is provided at an appropriate position of the machine,
The detection sensor (S) is connected to a control circuit (46) so that the circuit of the spin turn switch (59) is turned off when the detection sensor (S) is turned on. Therefore, the detection sensor- (S) detects the presence of the grain culm and turns ON during the mowing work in which the planting board (7) is divided between the rows of the planted grain culms, and the control circuit (46) is turned on. The information is sent, and the control circuit (46) turns off the spin turn switch (59) on the basis of the information, so that the operator turns the spin turn switch (59) on by mistake.
Even if there is N, the spin turn actuating member (37) does not operate and the aircraft does not spin unexpectedly. Therefore, the traveling crawler (2) is used to lay planted culms and Therefore, it is possible to perform safe work without encountering situations such as hitting an assistant running in parallel.

[Brief description of drawings]

FIG. 1 is a plan view of an entire combine.

FIG. 2 is a left side view of the combine.

FIG. 3 is a control circuit diagram.

FIG. 4 is an explanatory diagram of an engine drive system.

FIG. 5 is an explanatory diagram of a drive system in the mission case.

FIG. 6 is a hydraulic circuit diagram.

FIG. 7 is a main flowchart.

FIG. 8 is a flowchart of spin turn control.

[Explanation of symbols]

 46 Control Circuit 59 Spin Turn Switch 37 Spin Turn Actuating Member S Detection Sensor 8 Raising Case

Claims (2)

[Claims] 1. In a combine equipped with a spin turn actuating member (37) for spinning the aircraft when the spin turn switch (59) is turned on via a control circuit (46), it is planted in an appropriate place on the aircraft. A detection sensor (S) for detecting the presence of grain culms is provided, and the detection sensor (S) is connected to a control circuit (46) so that the spin turn switch (59) is connected when the detection sensor (S) is ON. ) A device for preventing erroneous operation of harvesting of a combine, characterized in that the circuit of (4) is turned off. 2. The detection sensor (S) is provided below the raising case (8) for raising the planted grain culm, or is attached to the uncut grain culm side of the machine body. Claim 1
The preventive operation device for erroneous operation of harvesting of the combine described in.