JPH10201357A - Discharging auger controller for combine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify the operation of discharging grain from a grain tank to outside of a device. SOLUTION: At the time of judging the absence of grain by a grain detection sensor 87 in the middle of grain discharging operation, an auger clutch 36 is turned off to turn off the power transmission of a bottom screw conveyer 37 by delaying by a period until grain within a vertical auger cylinder goes out from the device through a discharging port at the tip of a horizontal auger cylinder. Just before it, engine output is lowered to an idling state by an electric governor 85.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a combine discharge auger control device for ON / OFF-controlling the drive of a discharge auger for discharging grains from a grain tank in a combine. is there.

[0002]

2. Description of the Related Art Conventionally, the present applicant has disclosed, for example,
In JP-A-303414, when the vehicle is driven by driving a cutting pretreatment device and a threshing unit having a large load, isochronous control for increasing / decreasing the output of the engine at a rated speed is performed while the combine is stopped. When only the discharge auger is operated in the middle (when the load is small), it has been proposed to execute the isochronous control in which the engine speed is reduced to a low speed and to control the auger clutch to be turned off. .

[0003]

However, according to this control, even when the kernels stored in the kernel tank are exhausted, the operator can confirm that the kernels are not discharged from the discharge auger. , Ogre clutch O
Because it is not possible to use FF, there is a problem that it takes time to monitor grain discharge and attention can not be focused on other work, and it consumes engine power even when there is no grain in the grain tank There was also a problem that wasted fuel wasted.

SUMMARY OF THE INVENTION The present invention has been made to solve these problems, and is intended to provide a combine which can simplify the operation of discharging grains, reduce operator's labor, and reduce fuel consumption. It is an object to provide a discharge auger control device.

[0005]

In order to solve the above-mentioned problem, a combine discharge auger control device according to the first aspect of the present invention transmits power from an engine to a traveling unit, a pre-cutting device and a threshing unit after branching. A combiner configured to transmit a grain in a grain tank to a discharge auger for discharging the grain outside the machine, wherein a power transmission path to the discharge auger includes a power transmission path for turning ON / OFF a transmission force. An auger clutch is provided, and a grain detection sensor is provided in the vicinity of the bottom in the grain tank. When the grain detection sensor determines that there is no grain in the grain tank, the auger clutch is appropriately provided after an appropriate time. Is provided with control means for controlling so as to turn OFF.

[0006] The invention described in claim 2 is the invention according to claim 1.
In the combine discharge auger control device described in the above, when it is determined that there is no grain in the grain tank, the control means changes the engine output to an idling state before turning off the auger clutch. It is configured to control. According to a third aspect of the present invention, in the combine discharge auger control device according to the first or second aspect, the control means controls the turning off of the auger clutch by a selection operation from a selection switch. , In addition to turning off the auger clutch,
And the control of returning the turning position of the discharge auger to the reset position.

[0007]

According to the first aspect of the present invention, when the kernel sensor determines that there is no kernel in the kernel tank during the execution of the kernel discharging operation, it is appropriate that Since the auger clutch is turned off (power cutoff) with a delay by the time, there is an effect that the last grain discharged does not remain in the discharge auger, and the whole amount can be discharged to Kujitsu. In addition, this control has an effect that the operator does not need to pay attention to the remaining amount of kernels in the kernel tank, and can concentrate on other operations and prepare the operator for the next operation.

[0008] According to a second aspect of the present invention, control is performed such that the engine output is reduced to an idling output in conjunction with the OFF operation (power cutoff operation) of the auger clutch. By lowering the engine output just before turning off the auger clutch,
It is possible to eliminate idling of the discharge auger, thereby saving fuel consumption.

In the control mode according to the second aspect of the present invention, the auger clutch is turned on by switching the selection switch.
Performing only the FF operation (execution of the first control mode or the second control mode), or performing the operation of returning the horizontal auger cylinder to the auger rest position after completion of grain discharge in addition to the OFF operation of the auger clutch. This is for selecting whether to execute. When the latter control is performed in this way, if the operator performs only the switch operation for starting the grain discharging operation, the operation of returning the horizontal auger cylinder to the storage position after the discharging operation is also automatically performed, This has the effect of making grain discharging work extremely simple.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the present invention will be described. FIG. 1 is a side view of a traveling body 1 of a combine having a pair of right and left traveling crawlers 2 as traveling portions, and FIG. FIG. 3 is a plan view, FIG. 3 is a side view of a threshing unit, FIG. 4 is a skeleton view showing a power transmission system of a combine, and FIG. 5 is a side view of a screw conveyor in a grain tank.

A threshing device 3 is mounted on the left side of the traveling body 1 with respect to the traveling direction, and a grain tank 9 is mounted behind a control section 81 on the right front side. The cutting pre-processing device 4 that can move up and down is arranged. A clipper-type cutting device 5 is arranged below the lower frame of the pre-cutting device 4, and a grain stem raising device 8 for six rows is arranged in front of the cutting frame 5, and a feed chain 7 front end of the grain stem raising device 8 and the threshing device 3. A grain culm conveying device 8a is arranged between the
At the lower front of the cereal stem raising device 8b, a weeding body 8c protrudes.

The handling cylinder 11 in the handling room 10 of the threshing device 3
Are arranged along the traveling direction of the traveling body 1, and the tip portion of the grain culm conveyed while being clamped at the root by the feed chain 7 arranged at the left end of the handling chamber 10 is used as the handling cylinder 11.
Is threshed on the underside of. A crimping net 14 is provided in the processing chamber 12 below the handling room 10 except for the dust outlet 13, and the processing object leaking from the crimping net 14 is moved downward in the traveling direction of the traveling machine 1. It is received by a pair of feed pans 16 and 17 in a swing sorting mechanism 15 swinging forward and backward along the same, and undergoes swing sorting by a chaff sheave 18. At this time, the objects to be processed are subjected to wind sorting by the blower fan 20 for blowing the Karino fan 19 below and the feed pans 16 and 17 of the front and rear pair, and the first receiving gutter 23 as clean grains from the grain pan 21 and the sorting net 22. Fall in the direction. A processing drum 29 is arranged on the side of the handling chamber 10, and a part of the object to be processed is sent in the direction of the processing drum 29 at the rear side of the handling drum 11, and is further threshed.

The second processed material dropped from the rear chaff sheave of the swinging sorting mechanism 15 is received by a second receiving gutter 24,
The screw conveyor 24a and the second reduction conveyor 2
It is discharged onto the sieve line 26 via 5 and undergoes another sorting. The grains which have been cleaned by the rocking sorting and the wind sorting are collected in the grain tank 9 via the screw conveyor 23a of the first receiving gutter 23, and are carried out of the machine via the discharge auger 28. . The dust in the processing chamber 12 is discharged outside the machine by the suction fan 30, and the straw inherited at the rear end of the feed chain 7 is discharged to the rear of the traveling machine 1 in a long state via the straw chain 31. Alternatively, it is discharged after being appropriately cut by the straw cutter 33. Reference numeral 32 denotes an operator's cab arranged on the front right side of the traveling body 1.

FIG. 4 is a skeleton diagram showing the power transmission system of the combiner. One of the outputs from the engine 35 disposed below the cab 32 is an auger clutch 36.
The power is transmitted to the bottom screw conveyor 37 and the vertical screw conveyor 38 in the grain tank 9 via the, and then to the screw conveyor 50 in the discharge auger 28 shown in FIG.

The other output from the engine 35 is transmitted to the handle drum drive shaft 40 and the selection drive shaft 41 via the continuously variable transmission mechanism 60 in the power branching mission 39, while the other output of the power branching mission 39 Drive shaft 43 from output shaft to traveling hydraulic pump hydraulic motor type (HST type) traveling drive unit 42 for traveling
The power is transmitted to the constant speed drive shaft 44 to the pre-cutting device 4. Also, power is transmitted from the (HST type) traveling drive unit 42 to the reaping shaft 47 via the one-way clutch 45a (which can be transmitted only when the traveling drive unit is rotating forward) and the tuning clutch 46 from the harvesting synchronous driving shaft 45 output from the traveling driving unit 42. Then, it is transmitted directly to the feed chain 7. Further, the power transmission to the pre-cutting device 4 is turned on / off via a pre-cutting clutch 49 provided on the cutting shaft 47. Each tuning clutch 46, reaping clutch 48,
In order to perform ON / OFF operation of the clutch 49 before cutting, a clutch actuator such as an electromagnetic solenoid corresponding to each clutch is configured to perform ON / OFF operation. The tuning clutch 46 may be a tension clutch that cuts off the power by tensioning and relaxing the tension of the belt. Therefore, when the vehicle speed tuning control is stopped or the like, power is transmitted to the reaping shaft 47 via the constant speed rotation drive shaft 44 of the power branching mission 39, and the HS
When the rotation speed of the cutting and tuning drive shaft 45 output from the T-type traveling drive unit 42 is lower than the rotation speed of the constant speed rotation drive shaft 44, or when the cutting and tuning drive shaft 45 rotates in the retreat direction of the combine. , The one-way clutch 45a idles.

Next, the structure of a discharge auger 28 for discharging the grains stored in the grain tank 9 to a truck bed (not shown) will be described in detail with reference to FIGS. A vertical auger cylinder 52 erected from the bottom of the grain tank 9 to the discharge port 51 at the rear end thereof is provided so that the axis is substantially vertical. The lower cylinder 52a and the upper cylinder 52 of the vertical auger cylinder 52
Vertical screw conveyor 3 built in inside
A transmission joint 53 composed of a bevel gear or the like is disposed between the lower end of the bottom 8 and the end of the bottom screw conveyor 37.

At the upper end of the upper cylindrical body 52b, a transfer case 55 having a built-in transfer screw 54 having a transverse axis,
A horizontal auger cylinder 57 having a built-in horizontal screw conveyor 27 that is rotatably connected to the joint part 56 provided at one side of the transfer part case 55 so as to be able to move up and down. An upper cylinder 22b is attached to a fixed lower cylinder 52a of the vertical auger cylinder 52 via a joint (not shown) so as to be rotatable around its axis, and the upper cylinder 52b is a grain tank. 9 is rotatably supported via a cylindrical support member 60 protruding from the outer surface or the like.

A drive gear 62 attached to a turning actuator 61 such as a drive motor or the like capable of rotating forward and reverse rotates from an upper cylindrical body 52b.
By transmitting power to a driven gear 63 fixed to the outer periphery of the upper cylinder 52, the upper cylinder 52b pivots left and right around its axis, and the lateral auger cylinder 57 can pivot left and right together with the takeover case 55. . The other end of the screw shaft of the bottom screw conveyor 37 provided at the bottom of the grain tank 5 and the auger clutch 36 of the power transmission unit from the engine 35 apply the tension of the belt wound around the pulley to the operation of the electric actuator. The power transmission may be cut off by loosening.

At the upper end of the vertical screw conveyor 38 which rotates in the direction of the arrow in FIG. 6, an impeller 64 for bouncing grains in the direction of the transfer screw 54 is provided, and the shaft 38a of the vertical screw conveyor 38 is connected to the transfer screw. Power is transmitted between the shaft 54a and the shaft 54a via a pair of bevel gears 65 and 66. The other end of the shaft 54a is supported by a joint pipe 67 having a bevel gear inside. Also, the horizontal auger cylinder 57
The inner screw 68 and the horizontal screw conveyor 50 on the distal end are connected via a bevel gear in the joint pipe 67 as shown in FIG.
, The grains in the lateral auger cylinder 57 are conveyed toward the discharge port 69 at the tip.

A hydraulic cylinder 70 as a lifting / lowering actuator for driving the horizontal auger cylinder 57 up and down is a single-acting type, and one end of the hydraulic cylinder 70 is fixed to the outer surface of the upper cylindrical body 52b of the vertical auger cylinder 52. Bracket 7
1 and the other end of each pin 7
It is pivotally connected via two and 73. The brake means 74 for preventing the horizontal rotation of the vertical auger cylinder 52 and positioning it includes a horizontal flange-shaped brake plate 75 fixed to the outer periphery of the upper cylindrical body 52b, and a brake sandwiched between both surfaces of the brake plate 75. The brake actuator 76 is constituted by a hydraulic cylinder unit with a brake shoe for pressing both surfaces of the brake plate 45, and the brake actuator 46 is attached to the support bracket 71.

The reference numeral 77 shown in FIG.
A hydraulic circuit for controlling the operation of a hydraulic cylinder 70 and a brake actuator 76 which are actuators for raising and lowering a hydraulic pump 78, a manually operated electromagnetic control valve 79 with electromagnetic solenoids 79a and 79b for the hydraulic cylinder 70, And a control valve 80 with an electromagnetic solenoid for the brake actuator 70.

An electronic control device 82 such as a microcomputer provided in the vicinity of the control section 81 or the like executes the control of the horizontal auger cylinder 57 in the grain discharge auger 28, which will be described later, in the left-right direction, up and down, and control of the grain discharge operation. In addition to a central processing unit (CPU) for executing various operations, a read-only memory (ROM) for storing a control program for each of the above operations, and a read / write memory (ROM) for storing various data as needed. RAM), and an input / output interface for transmitting data by connecting to various input units and output units described later.

The output interface includes an actuator 61 for turning left and right of the grain discharge auger 28, an electromagnetic control valve 79 for a hydraulic cylinder 70 for lifting and lowering the horizontal auger, a hydraulic control valve 80 for a brake actuator 76, An actuator 84 for turning ON / OFF the auger clutch 63 for interrupting power transmission to the bottom screw conveyor 37 in the grain tank 9 and an electronic governor 85 for controlling the output of the engine 35 are connected.

FIGS. 1 and 2 show the input interface.
A turning angle sensor 86 for detecting that the horizontal auger cylinder 28 has automatically returned to the position of the upwardly open augerrest 83 provided on the upper surface of the traveling machine body 3 shown in FIG.
A grain sensor 87 for detecting the presence / absence of a grain amount in the auger clutch 63 and the auger cylinder 5
7 is connected to a selection switch 88 for determining whether or not to execute returning to the position of the augerrest 83.

Although not shown, a turning position adjuster such as a variable resistor for setting (setting) the direction of the horizontal auger cylinder 57 during the grain discharging operation, or a horizontal auger at the set turning angle position. An automatic setting command switch for instructing to set the direction of the cylinder 57, an auger raising switch for instructing to raise the tip of the horizontal auger cylinder 57, and a command for lowering the tip of the horizontal auger cylinder 57. An auger lowering switch, a right turning switch for instructing the horizontal auger cylinder 57 to turn right, a left turning switch for instructing the horizontal auger cylinder 57 to turn left, and the like are connected to the control device 82. You can leave it.

Next, operation control of the discharge auger 28 and the like will be described. The first of the control modes is that if the kernel sensor 87 determines that there is no kernel in the kernel tank 9 during the execution of the kernel discharging operation, the kernel sensor 87 determines the appropriate time (for the vertical cylinder 52a). The auger clutch actuator 84 is turned off so that the auger clutch 36 is turned off (power cutoff) by delaying the auger clutch 36 by the time required for the grain located at the bottom to be conveyed and reach the discharge port 69). With this control, the operator does not need to pay attention to the remaining amount of kernels in the kernel tank 9, and can concentrate on other operations and prepare the operator for the next operation.

In the second control mode, the auger clutch 3
Control is performed such that the engine output is reduced to an idling output in conjunction with the OFF operation (power cutoff operation) of No. 6. More specifically, it is preferable to reduce the engine output immediately before the auger clutch 36 is turned off. As a result, idling of the discharge auger can be eliminated, and fuel consumption can be saved.

In the third control mode, only the OFF operation of the auger clutch 36 is performed by switching the selection switch 88 (first operation).
Execution of the control mode or the second control mode),
In addition to the OFF operation of the auger clutch 36, it is selected whether or not to execute the operation of returning the horizontal auger cylinder 57 to the position of the auger rest 83 after the completion of the grain discharge. When the latter control is performed in this manner, if the operator performs only the switch operation for starting the grain discharging operation, the operation of returning the horizontal auger cylinder 57 after the discharging operation to the storage position is also automatically performed. This has the effect of making the operation of discharging the grains extremely simple.

[Brief description of the drawings]

FIG. 1 is a side view of a combine.

FIG. 2 is a plan view of the combine.

FIG. 3 is a side sectional view of the threshing apparatus.

FIG. 4 is a diagram showing a power transmission path of a combine.

FIG. 5 is a side sectional view showing a configuration of a screw conveyor in a grain tank.

FIG. 6 is a sectional view showing a continuous portion of a vertical auger cylinder and a horizontal auger cylinder.

FIG. 7 is a control block diagram of a discharge auger.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 traveling body 2 traveling crawler 3 threshing device 9 grain tank 28 discharge auger 35 engine 36 auger clutch 37 bottom screw conveyor 38 vertical screw conveyor 52 vertical auger cylinder 57 horizontal auger cylinder 82 control device 83 augrest 84 actuator for auger clutch 85 electronic governor 87 Grain detection sensor 88 Selection switch

Claims (3)

[Claims] 1. The power from an engine is transmitted to a traveling section, a pre-cutting device and a threshing section after branching, while being transmitted to a discharge auger for discharging grains in a grain tank outside the machine. In the combine having the structure described above, the transmission force is ON / OF in the power transmission path to the discharge auger.
An auger clutch for F is provided, and a grain detection sensor is provided in the vicinity of the bottom in the grain tank. When the grain detection sensor determines that there is no grain in the grain tank, an appropriate time is set. A combine discharge auger control device, further comprising control means for controlling the auger clutch to be turned off later. 2. The control means, when it is determined that there is no grain in the grain tank, turns off the auger clutch.
The exhaust auger control device for a combine according to claim 1, wherein the engine output is controlled to be changed to an idling state before the engine is switched to an F state. 3. The control means selects a control for turning off the auger clutch and a control for returning the turning position of the discharge auger to the reset position in addition to turning off the auger clutch by a selection operation from a selection switch. The discharge auger control apparatus for a combine according to claim 1 or 2, wherein the control is executed in an integrated manner.