JP2703131B2 - Threshing control device of threshing device in combine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a threshing control device of a threshing device in a combine for threshing grain culms supplied into a handling room by rotating a handling cylinder provided in the handling room.

[0002]

2. Description of the Related Art In a conventional threshing control device of a threshing device in a combine, a handling cylinder provided in the handling room has
The rotation was driven while the rotation speed was kept constant.

[0003]

In the case where the handling cylinder is driven to rotate at a constant rotation speed as described above, for example, in the case of increasing the vehicle speed or in the so-called middle splitting operation, the number of cutting streaks is made smaller than the standard number of streaks. When the supply of cereal stalks that are cut off and supplied to the handling room is increased for some reason, such as by cutting, the grain from the stalks based on the combing action of the teeth of the handling cylinder. It was found that the shedding ability was insufficient for the supply of cereal stalks, resulting in unhandled products and the like, resulting in poor threshing. The present invention has been made based on such knowledge, and an object of the present invention is to avoid occurrence of threshing failure based on unhandled or the like even when the supply amount of cereal stalks to the handling room is increased or decreased, and thus combine. And to improve the processing capacity of the threshing apparatus.

[0004]

A threshing control device of a threshing device in a combine according to the present invention is characterized in that a rotation speed changing means for changing a rotation speed of the handling cylinder is provided, and a grain culm for transporting a cut grain culm is provided. If the supply amount of the grain culm determined based on the thickness information of the transported grain culm transported by the transport device is equal to or less than a set value, the rotation speed of the handling cylinder is maintained at the set rotation speed,
And, if the supply amount of the cereal stem exceeds the set value,
Control means for controlling the operation of the rotation speed changing means is provided so that the rotation speed of the handling drum increases as the supply amount of the grain stem increases.

[0005]

According to the device of the present invention having such a feature,
When the supply amount of cereal stalk calculated based on the thickness information of the transported cereal culm conveyed by the cereal culm conveying device that conveys the cut culm increases beyond a set value, the number of rotations by the control means according to the increase. The operation of the changing means is performed, and the operation increases the rotation speed of the handling cylinder to match the supply of a large amount of cereal stems, thereby improving the grain detachment ability based on the carding action to match the supply of a large amount of cereal stems. Will be done. And
If the cereal stem supply amount is equal to or less than the set value, the rotation speed of the handling cylinder is maintained at the set rotation speed, for example, when the rotation speed of the handling cylinder is reduced according to a small grain culm supply amount However, there is a possibility that the minimum required capacity cannot be secured due to the decrease of the grain detachment ability due to the rotation of the handling cylinder, and there is a possibility that unhandled residues may occur. Therefore, the grain detachment ability can be maintained at a predetermined ability, and the occurrence of untreated can be prevented beforehand. Here, since the grain culm supply amount is determined based on the thickness information of the transported grain culm, the grain culm supply amount is more directly and appropriately compared to, for example, determining the grain culm supply amount based on vehicle speed information. The quantity can be determined.

[0006]

As described above, when the supply amount of the cereal stalk is increased while appropriately determining the supply amount of the cereal stalk based on the thickness information of the transported stalk, the supply of the cereal stalk having a large grain detachment ability as described above is performed as described above. In addition, when the supply of grain culm decreases below the set value, the grain detachment ability is maintained at a predetermined level. By setting the capacity to an appropriate state, the occurrence of threshing failure based on unhandled items and the like is avoided, and thus, the processing capacity of the threshing apparatus in the combine can be improved.

[0007]

Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 to 4 show an embodiment of the apparatus of the present invention. As shown in FIG. 3, the threshing apparatus of the combine is conveyed by a feed chain 1 from the front to the rear of the fuselage. Room A in which a handling drum 2 for handling and processing the harvested grain culm is stored, a receiving net 3 disposed below the handling room A, and a swing-processed material that has been leaked from the receiving net 3. Rocking sorter plate 4, a Karamin 5 for blowing a sorting wind to the rocker sorter plate 4, a rotary diffusion cylinder 6 acting on the straw waste sent from the handling room A, and a threshing device A dust discharge fan 7 for sucking and discharging dust generated inside the machine,
The first screw 8 for collecting the grain as the first thing from the rocking sorting plate 4, the second screw 9 for collecting the grain mixed with the straw as the second thing, and the second screw 9 for collecting the grain with the second screw 9. Slower 1 for reducing the goods on the swing sorting plate 4
0. In the figure, reference numeral 11 denotes a Glen Sheave disposed above the first screw 8 and 12 denotes a chaff sheave located above the Glen Sheave 11.

The power transmission system of the combine will be described. As shown in FIG. 4, the driving force of the engine E is transmitted to a transmission 13 for traveling via a belt transmission, and the rotating shaft 2a of the handling drum 2 and the rotating shaft 5 of
a, transmitted to each of the first screws 8 via a belt transmission and a gear transmission. A belt transmission provided at an output portion of the engine E, which transmits the driving force of the engine E to the rotation shaft 2a of the handling cylinder 2 and the like, includes a threshing operation for turning on and off the power transmission from the engine E to the threshing device. A clutch 14 is provided, and the threshing clutch 14 is provided.
The threshing switch S ₃ is attached for detecting whether it is in a disengaged state it is in engaged state. Further, the output shaft of the engine E has an engine speed detecting sensor S ₄ for detecting the rotational speed are attached. Then, the information detected by the detection information and the engine speed detecting sensor S ₄ by the threshing switch S ₃ is adapted to be input to the control unit 30 of the microcomputer utilized (see FIG. 1).

The driving force of the engine E transmitted to the first screw 8 is transmitted to the rotating shaft 6a of the diffusion cylinder 6, the second screw 9, and the swing shaft 4a of the swing selection plate 4 in the order of the belt. It is transmitted. In the drawing, reference numeral 15 denotes the swing shaft 4a.
A straw cutter 16 is driven by a belt-driven driving force transmitted from the rotating shaft 2a of the handling drum 2, and a straw chain 16 is driven by a belt-driven and driven by a belt-driven driving force. is there. Further, 18 is a transmission portion for traveling the output of the travel gear 13 is transmission, S ₁ is a vehicle speed sensor for detecting a vehicle speed based on the input speed to the transmission unit 18. Information detected by the vehicle speed sensor S ₁ is also adapted to be inputted to the control device 30.

The rotating shaft 2a of the handle cylinder 2 is transmitted by a belt via a split pulley type transmission 20 (belt continuously variable transmission) in which the driving force of the engine E is disposed in the middle of a transmission path. It is rotationally driven by the driving force. The transmission 20 includes an input pulley 20b attached to an input shaft 20a to which the driving force of the engine E is transmitted, and an output pulley 20c which is belt-transmitted to the input pulley 20b. Rotary shaft 2a of body 2
Attached to. The input pulley 20b is configured as a split pulley type, and the diameter of the pulley is changed based on the movement of the pulley in the thickness direction.
Based on the change in the diameter of the pulley, the speed change operation of the transmission 20 is performed to change the rotation speed of the handling cylinder 2. That is, the split pulley type transmission 20
Functions as rotation number changing means B for changing the rotation number of the handling drum 2. The rotary shaft 2a of the rotational speed freely changed thresher 2 based on the shifting operation of such a transmission 20, thresher rotational speed sensor S ₂ for detecting the number of revolutions is attached. The information detected by the threshing drum speed sensor S ₂ is also adapted to be inputted to the control device 30.

The dust discharging fan 7 is driven to rotate by a driving force transmitted from the rotating shaft 6a of the diffusion drum 6 through a split pulley type transmission 21 via a belt. The transmission 21 includes an input pulley 21b attached to an input shaft 21a that is gear-transmitted from the rotating shaft 6a of the diffusion cylinder 6, and an output pulley 21c that is belt-transmitted to the input pulley 21b. Is attached to the rotating shaft 7a of the dust discharging fan 7.
The input pulley 21b and the output pulley 21c are both configured as split pulleys, and when one diameter is changed from small to large, the other diameter is changed from large to small in conjunction. The driving force transmitted to the dust discharging fan 7 via the transmission 21 is transmitted to the driving sprocket 1a of the feed chain 1 via a gear type reduction mechanism 22 and a clutch 23. That is, when the transmission 21 is operated, the dust discharge fan 7 and the feed chain 1 are shifted in conjunction with each other.

As shown in FIG. 1, the control device 30 controls a split pulley type transmission 20 as the rotation speed changing means B based on information from the vehicle speed sensor S ₁ and the handle cylinder rotation speed sensor S ₂ . It controls the operation and functions as control means C thereof. That is, as a comparative example of the configuration according to the present invention which will be described later, specifically, the controller 30 obtains the culms supply amount based on the vehicle speed sensor S ₁ information, the threshing drum in the culms supply amount The operation of the transmission 20 is controlled under conditions (see FIG. 2) that increase or decrease the number of revolutions of the second gear 2 in proportion. When such control is performed, even if the vehicle speed of the combine increases and a large amount of grain culm is supplied to the threshing device, the handling cylinder 2 is adjusted to match the large amount of grain culm supplied.
The number of rotations is increased, so that the grain detachment ability is increased to match the supply of a large amount of grain stalks.

It should be noted that although the control by the controller 30 is performed under the above-described relationship between the supply amount of cereal stalk and the number of rotations of the handling cylinder, the supply amount of cereal stalk is a certain lower limit value (corresponding to the set value). When the value falls below, the cylinder rotation speed corresponding to the lower limit value (corresponding to the set rotation speed) is maintained as it is, and when the cereal culm supply amount exceeds a certain upper limit value, the handling value corresponding to the upper limit value is maintained. Maintain the body rotation speed as it is (see Fig. 2)
The control is performed. When the supply amount of cereal stalk falls below a certain lower limit, the handling cylinder rotation speed corresponding to the lower limit is maintained as it is, when the supply amount of cereal stem falls below the certain lower limit, the handling cylinder rotation speed is reduced. This is to prevent the occurrence of unhandled residue that is likely to occur when further lowered, and to prevent the occurrence of slippage that is likely to occur when the handle cylinder rotation speed is further increased when the grain culm supply amount exceeds a certain upper limit. .

Since the transmission 20 is a continuously variable belt transmission as described above, the speed change operation of the transmission 20 must be started under the condition that the pulleys 20b and 20c are rotating. There is. Therefore, based on the information from the threshing switch S ₃ and the engine speed sensor S ₄ input as described above, the control device 30 determines that the threshing switch S ₃ is in the ON state, and that the engine E rotates. The speed change operation of the transmission 20 is performed under the condition that the number is equal to or more than a certain value (under such conditions, the pulleys 20b and 20c are surely rotating).

In the above-described embodiment, the split pulley type transmission is used as the rotation speed changing means B for changing the rotation speed of the handling drum 2, but a gear type transmission is used. Can also. Then, as in the case where a gear type transmission is employed, the rotation speed of the handling cylinder 2 may be changed to a multi-step instead of a step-less.

Next, a configuration for determining the supply amount of cereal stems according to the present invention will be described. In other words, instead of calculating the culm supply amount based on the vehicle speed as described above, the culm supply amount is determined based on the feed chain speed and the thickness of the cereal culm conveyed by the feed chain, or the harvesting is performed. The feed rate of the grain culm is determined based on the thickness of the grain culm to be conveyed in the constant-speed vertical conveying device that conveys the grain culm to the feed chain.

That is, in the present invention, a grain culm conveying device that conveys the cut culm is constituted by the feed chain 1 and the vertical conveying device, and the thickness information of the conveyed grain culm conveyed by the cereal culm conveying device. Based on the above, the supply amount of the cereal stem is obtained. Then, the control device 30 (control means C)
However, if the obtained grain culm supply amount is equal to or less than the set value, the rotation speed of the handling drum A is maintained at the set rotation speed, and, if the grain culm supply amount exceeds the set value, The operation of the transmission 20 is controlled so that the rotation speed of the handling drum A increases as the supply amount of the grain stem increases (see FIG. 2).

In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration shown in the attached drawings.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a control configuration of a threshing control device.

FIG. 2 is a graph showing the relationship between the supply of cereal stalks and the number of rotations of the cylinder

FIG. 3 is a cutaway side view showing the threshing apparatus.

FIG. 4 is an explanatory diagram showing a power transmission system.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Grain stalk conveying device 2 Handling cylinder A Handling room B Speed change means C Control means

 ──────────────────────────────────────────────────の Continued on the front page (72) Inventor Yoshiaki Doi 64 Ishizu-Kitamachi, Sakai City, Osaka Prefecture Inside Kubota Sakai Factory (72) Inventor Takao Moriguchi 64 Ishizukita-machi, Sakai City, Osaka Prefecture Kubota Sakai Manufacturing Co., Ltd. In-house (56) References JP-A-4-112719 (JP, A)

Claims (1)

(57) [Claims] A threshing control device of a threshing device in a combine for threshing grain culms supplied into a handling room (A) by rotation of a handling drum (2) provided in the handling room (A). A rotation speed changing means (B) for changing the rotation speed of the handling cylinder (2), and the culm conveying device (1) for conveying the cut culm.
If the supply amount of the grain stalk calculated based on the thickness information of the transported grain culm is equal to or less than the set value, the rotation speed of the handling drum (A) is maintained at the set rotation number, and the supply amount of the grain culm is maintained. if There has exceeded the set value, the control unit supply amount of the culms is for controlling the operation of the rotational speed change means such that the rotational speed becomes larger the larger the more the thresher (a) (B) ( The threshing control device of the threshing device in the combine provided with C).