JPH0670521U - Combine - Google Patents

Abstract

(57) [Summary] [Purpose] Automatically set the optimum vehicle speed according to the wet condition of the planted grain culm to prevent the grain culm from clogging and improve work efficiency. [Structure] A culm length detection sensor 14 for detecting the culm length of the grain culm for adjusting the handling depth in the threshing device 3 by contacting the tip of the transported grain culm in the grain culm transporting route to the threshing device 3. In addition to the above, in the combine having the electric motor 33 for freely shifting the traveling transmission mechanism 30, the culm length detection sensor 14 is provided with the wet state detection sensor 36 for detecting the wet state of the transported grain culm. Based on the detection result of the state detection sensor 36, the electric motor 33 is drive-controlled so that the machine traveling speed is reduced.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention is a culm length detection sensor for detecting the culm length of a grain culm for adjusting the handling depth in the threshing unit by contacting the tip position of the conveyed grain culm in the grain culm transporting route to the threshing unit. The present invention also relates to a combine, which is provided with an actuator that is capable of performing a gear shift operation of a traveling transmission mechanism.

[0002]

[Prior art]

 In the above combine harvester, conventionally, the operator visually judges the condition of planted culms, for example, whether the culms are dry or wet with morning dew, etc. It was changed according to the crop conditions.

[0003]

[Problems to be solved by the device]

 However, in the above-mentioned conventional structure, for example, there is a risk that the mowing work speed may be set incorrectly and the mowing work will be performed at high speed even if the planted grain culms are wet with morning dew or the like. There is a risk that the grain culm may be clogged in the threshing device at an early stage, and if the traveling speed is set to a low speed even if the planted grain culm is sufficiently dry, the work efficiency will decrease. There is a harmful effect. The present invention aims to solve the above-mentioned problems.

[0004]

[Means for Solving the Problems]

 According to a characteristic configuration of the present invention, in the combine described at the beginning, a wetting state detecting means for detecting the wetting state of the transport grain culm is attached to the culm length detecting sensor, and based on the detection result of the wetting state detecting means, The point is that deceleration control means for driving and controlling the actuator is provided so that the vehicle traveling speed is decelerated.

[0005]

[Action]

 The culm length detection sensor that has been conventionally provided to change the posture of the transfer device to maintain the handling depth in the handling room according to the difference in grain culm length is always in contact with the tip of the cut culm. Because of this function, the wet state detection means attached to this culm length detection sensor can reliably detect the wet state of the transported grain culm, and based on this wet state detection information, the machine traveling speed is automatically Since the actuator is driven and controlled so as to decelerate, the harmful effect of erroneously performing the cutting operation in a high-speed running state when the grain culms are wet is eliminated. Also, when the detection operation by the wet state detecting means is not performed, the deceleration control does not operate, and therefore the low speed traveling state does not occur automatically.

[0006]

[Effect of device]

 Therefore, the operation traveling speed is automatically reduced when the planted culm is in a wet state without the need to change the machine traveling speed, so that the threshing device can be prevented from causing early jamming of the culm. In addition, when the planted culms are dry, it is possible to prevent adverse effects such as running at a low speed and lowering work efficiency due to an operation error.

[0007]

【Example】

 Embodiments will be described below with reference to the drawings. FIG. 2 shows a combine as a harvesting machine. This combine is configured by mounting a threshing device 3 on a traveling machine body 2 having a pair of left and right crawler traveling devices 1 and 1, and connecting a mowing pretreatment section 4 to a front part of the machine body so as to be vertically movable. There is. The cutting pretreatment unit 4 raises the planted culm to a standing posture, a raising device 5, a reaping device 6 for cutting the raised grain culm plant, and the collected culms are collected and conveyed backward. The auxiliary transporting device 7 and the vertical transporting device 9 for transferring the slaughtered grain culms that have been transported to the feed chain 8 of the threshing device 3 while gradually laying them down are provided. When performing the mowing work while the machine is running, the pre-crop processing unit 4 is controlled to move up and down so as to be maintained at the set height with respect to the ground. By doing so, it is possible to preferentially move up and down manually.

The vertical conveying device 9 includes a nipping and conveying device 9a for nipping and conveying the root side of the cut grain culm, an ear tip locking and conveying device 9b for locking and conveying the tip side of the trimmed culm, and a tip guide plate 9c. It is configured such that the cut culm from the auxiliary transfer device 7 is conveyed in the vertical position toward the rear of the machine body, and is changed to the horizontal position at the end of the transfer and transferred to the feed chain 8. There is. The vertical conveying device 9 is supported so as to be able to swing up and down around the horizontal axis P on the terminal end side of the conveying, and the cut grain culm supplied from the auxiliary conveying device 7 in accordance with the vertical swing operation by the electric motor 11. The support position of is changed to the culm direction, and the handling depth in the threshing device 3 is changed and adjusted.

A pair of upper and lower culm length detection sensors 13 and 14 for detecting the culm length are provided in the middle of the U-shaped frame 12 of the vertical conveyance device 9 to detect the culm length of the cut grain culm. The control device 15 drives and controls the electric motor 11 so as to be positioned between the detection sensors 13 and 14, and automatically controls the handling depth to an appropriate value. In addition, this automatic handling depth control operation detects whether or not the power-on / off clutch lever 16 for the threshing device 3 is in the clutch-engaged state, and moreover, the grain culm is supplied to the transport start end of the vertical transport device 9. The automatic control operation is executed only when the stock origin sensor 17 is in the grain culm detection state.

As shown in FIG. 3, the threshing device 3 treats the cut culms sandwiched and conveyed by the feed chain 8 by the handling drum 19 rotating in the handling chamber 18, and leaks from the receiving net 20. Items are selected by sieving by the rocking sorter 21 and wind by the Karako 22. The grain is collected from the first grain collecting section 23 and stored in the grain tank. It is configured to be returned to the inside of the handling room 18 via the second object recovery section 25, and the waste straw waste is discharged to the rear of the machine body. The swing sorting device 21 includes a rough sorting chaff sheave 26 and a fine sorting Glensieeve 27. Then, as shown in FIGS. 4 and 5, based on the detection result of the processing amount detection sensor 28 that detects the amount of the processing object on the chaff sheave 26, the control device 15 controls the leakage opening degree of the chaff sheave 26 and the Karako 22. The air volume is automatically adjusted by the electric motor 29.

Further, as shown in FIG. 1, the hydrostatic continuously variable transmission 30 [an example of a traveling speed change mechanism] interposed in the airframe traveling system is configured to be operated by a speed change lever 31. An electric motor 33 (an example of an actuator) is provided in the speed change operation system via a friction holding mechanism 32, and the electric motor 33 is capable of automatic speed change regardless of the operation state of the speed change lever 31. . A rotation speed detection sensor 34 for detecting the rotation speed of the engine 37 and a vehicle speed sensor 35 for detecting the axle rotation speed [vehicle speed] are provided, and the engine load does not exceed a predetermined value from the outputs of these sensors 34, 35. In this way, the control device 15 [an example of deceleration control means] is configured to automatically control the electric motor 33 so that the vehicle speed becomes the target speed.

[0012] The weaning state of the transported grain culm is applied to the plant side sensor 14 of the pair of upper and lower culm length detection sensors 13 and 14, that is, to the sensor 14 which is always in contact with the tip of the cut grain culm. A wet state detection sensor 36 for detecting [adhesion state of water] is attached, and when the wet state detection sensor 36 detects that the wet state is a predetermined wet state, the control device 15 causes the normal control as described above. The operation is stopped, the electric motor 33 is driven and controlled so that the machine traveling speed is reduced by a predetermined amount, and the leakage opening of the chaff sheave 26 is adjusted to the maximum opening to increase the air volume of the Karako 22 to the increasing side. The electric motor 29 is configured to be drive-controlled so as to be changed. In this way, when the planted culm is wet with morning dew, rainwater, etc., the vehicle speed is automatically reduced, and the rocking sorting device 21 is easily disengaged so that the grain culm is unlikely to become jammed. It automatically switches to the grain work mode.

It should be noted that reference numerals are added to the claims of the utility model to facilitate comparison with the drawings, but the invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a control block diagram.

FIG. 2 is a side view of the front part of the combine.

[Fig. 3] Vertical side view of the threshing device

FIG. 4 is a view showing a structure for adjusting the opening degree of a chaff sheave.

FIG. 5 is a view showing a structure for controlling the air flow rate of Kara Minoh.

[Explanation of symbols]

 3 Threshing Device 14 Stalk Length Detection Sensor 15 Deceleration Control Means 30 Travel Speed Change Mechanism 33 Actuator 36 Wetting State Detection Means

Claims (1)

[Scope of utility model registration request] 1. In the grain culm transport path to the threshing device (3),
A culm length detection sensor (14) for detecting the culm length of the grain culm for adjusting the handling depth in the threshing device (3) by contacting the tip position of the transported grain culm, and a traveling transmission mechanism (30). Is a combine equipped with an actuator (33) capable of shifting gears, wherein the culm length detection sensor (14) is provided with a wetting state detecting means (36) for detecting the wetting state of the transported grain culm, and this wetting state detection Means (36)
A combine comprising deceleration control means (15) for driving and controlling the actuator (33) so that the vehicle traveling speed is decelerated based on the detection result of (1).