JP2002191215A - Working vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate the traveling operation of an accompanying vehicle running with a working vehicle in a harvesting work or the like. SOLUTION: This working vehicle such as a combine harvester A acts as a member of its combination with an accompanying vehicle functioning to receive harvests from the working vehicle and carry them while running alongside the working vehicle; wherein each of the working vehicle and accompanying vehicle has a travel driving means, and there is equipped a means for detecting the positional relationship between both the vehicles, and based on the detection result, the travel driving means on the accompanying vehicle side is ensured to freely make a changeover for higher/lower speed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work vehicle that is accompanied by a traveling vehicle, for example, in a harvesting operation in a field.

[0002]

2. Description of the Related Art Conventionally, in a harvesting work vehicle, for example, a combine, if the structure is such that the harvest is appropriately transferred by following a parallel traveling vehicle that runs along with the harvested grain, the work is interrupted one by one every time the grain tank of the combine becomes full. This is extremely convenient because there is no need to transport and move the truck to a standby position.

[0003]

However, in such a conventional apparatus, a pilot is always required for the follow-up operation of the parallel traveling vehicle, but the grain traveling operation is performed between the parallel traveling vehicle and the work vehicle during the grain discharging operation. At a predetermined distance, and the following operation is not easy.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to facilitate the operation of a parallel traveling vehicle, and has taken the following technical means. That is, the technical means according to the present invention includes a work vehicle such as a combine A and a parallel traveling vehicle that receives and transports the crop on the work vehicle side while running in parallel with the work vehicle. Each of the vehicles has traveling drive means, and between the work vehicle and the parallel traveling vehicle, a positional relationship between the two vehicles is detected, and the traveling driving means on the parallel traveling vehicle side can be switched between high and low speed based on the detection result. It is composed.

[0005] Therefore, during harvesting work with a work vehicle in a field, when the harvest is full, the harvested vehicle is transferred to the side of the parallel vehicle. The positional relationship is detected, and if the vehicle shifts forward with respect to the work vehicle, the vehicle speed on the side of the parallel traveling vehicle is reduced. Conversely, if the vehicle shifts backward, the vehicle speed is increased to follow the work vehicle.

[0006]

As described above, according to the present invention, while detecting the positional relationship between the work vehicle and the parallel running vehicle, the speed of the parallel running vehicle can be shifted up and down, and a constant relationship with the work vehicle can be maintained. Since the positional relationship from the vehicle side to the side-by-side vehicle side is kept constant, the following operation is facilitated, and the transfer of the harvest is also easy.

[0007]

Embodiments of the present invention will be described below. First, a combine A as a working vehicle will be described. H indicates a harvesting part of the combine A, and D indicates a threshing part. The reaper H is configured to be able to move up and down around the fulcrum P.
The threshing unit D has a handling room 2 in which a handling cylinder 1 is provided, and a grain culm is supplied to the handling room 2 on a front wall and a rear wall of the handling room 2 which supports a shaft of the handling cylinder 1. And a discharge port for discharging threshed culm. On one side of the handling chamber 2 along the axis of the handling cylinder, there is provided a feed chain 3 for sandwiching and transferring the seeds of the grain culm. A sorting unit is provided below the receiving net 4 extending along the outer periphery of the handling cylinder 1 below the handling room 2 to receive and sort threshing material falling from the receiving net 4. The sorting section includes a swing sorting device 5 and a Karamin 6 that sends a sorting wind to the swing sorting device 5.

The swing sorting apparatus 5 has a frame that can be driven to swing and is provided with a Glen pan 7 and a Glen sheave 8 in a series of front and rear directions. A straw rack 10 is provided. Then, the thresh that has leaked from the receiving net 4 is received by the Glen pan 7 and rocked and transported to the rear grain 8 while being sorted by specific gravity, and then rocked rearward while being screened by the grain 8. Transfer and drop from the rear end. On the other hand, the waste material discharged from the dust falling port 2a of the handling room 2 is received on the chaff sieve 9, and is sifted and swayed to the rear while being sifted. Is discharged out of the machine together with the sorting wind through a dust outlet 11 opened rearward from the end of the
Further, the floating dust is sucked and discharged by the suction and dust fan. At the bottom of the sorting part, the first gutter 12
And the second gutter 13 are provided. Reference numeral 14 denotes a waste straw transport device.

The harvesting section H is provided with a harvested grain culm sensor CK for detecting the presence or absence of a harvested and transported grain culm, and a threshing transport is provided at the beginning and end sides of the grain culm holding and transporting path of the feed chain 3. Holding rod switches SW1, SW2 for detecting the presence or absence of cereal stems
In addition, a discharge straw switch SW3 for detecting the presence or absence of a discharge straw after threshing is provided at the end side of the discharge straw transport device 14. The reason why the two holding rod switches SW1 and SW2 are provided is that the presence or absence of a grain culm during transportation in the handling room range can be accurately caught. At this time, OFF in FIG. 2 indicates both OFF states, and ON indicates ON or only one of them.
Indicates the state.

Reference numeral 15 denotes an engine, 16 denotes an output pulley, 17
Is mowing. A threshing counter shaft, 18 is a threshing drive pulley, 19 is a threshing input pulley, 20 is a mowing input pulley, and 21 is a mowing input pulley.
Reference numeral 22 denotes a speed change cam. The rotation power from the engine 15 is mowing. The signal is transmitted to the threshing counter shaft 17 and the cutting unit H (the cutting input pulley 20) and the threshing unit D (the threshing input pulley 1).
Input to 9). At the time of the machine body recirculation, that is, at least when the harvested grain culm sensor CK is in the OFF state, the motor 21 operates according to the detection result of the absence of the threshing transported grain culm by the holding rod switches SW1 and SW2, and the speed change cam 22 is moved. The entire drive unit of the threshing unit D is decelerated.

In FIG. 2, item (2) is to restore the threshing rotation to the rated value before the harvested culm enters the handling room. Therefore, according to this configuration, when the harvested grain culm enters the harvesting section and the harvested grain culm sensor-CK operates (ON), the threshing rotation returns to the rated value, and thus the grain culm transfer section between the harvesting section and the threshing section. Clogging can be prevented. In FIG. 2, item (5) is a state in which there is a transported grain culm in the handling room,
In other words, although it is the time of normal circulation, the rated rotation is good if the occurrence of unthreshing is emphasized by decelerating the threshing unit, and the deceleration is appropriate if the third scattering loss is emphasized.

The reaper H is provided with an operation detecting mechanism for detecting a reaping and raising operation when the machine body rotates, that is, a switch SW0 for detecting that the reaper has been raised to a predetermined non-working position. The drive rotation of the threshing / sorting unit may be configured to be decelerated based on the detection result of the switch SW0 (determined that the machine is rotating). Further, the determination at the time of the rotation of the machine may be made based on a combination of the cutting up / down detection switch SW0, the cutting grain culm sensor-CK, and the waste straw switch SW3.

Next, a parallel running tank car B as a parallel running car will be described with reference to FIG. The configuration shown in FIG. 3 is based on the ultrasonic sensors X.X. provided on the outer side surface of the body of the Glen tank 23 in the combine A and the opposite side surface of the parallel running tank car B.
Y. Z (transmitting unit), X '. Y '. Z '(receiving unit) senses the position where the grain can be discharged from the discharge auger 24, and
The grain is automatically discharged only when the cutting operation in the row direction is detected. The sound wave transmitted from the sensor X is Y '. Z ', the tank truck B decelerates, and the sound wave transmitted from the sensor Z is X'. When the speed is detected by Y ', the speed of the tank truck B is increased. When the sound wave transmitted from the sensor X is detected by X', Y is detected by Y ', and Z is detected by Z', the speed of the tank truck B is maintained at a constant speed. It has become. That is, the ultrasonic sensor-X. Y. Z (transmitting unit), X '.
Y '. Work vehicle (combine) A by Z '(receiver)
It constitutes a detecting means for detecting a positional relationship between the vehicle and the parallel traveling vehicle (parallel traveling tank vehicle) B.

The parallel running tank truck B is such that the harvesting section and threshing section of the used combine are removed, and the Glen tank 23 'is reused as a tank truck. In this embodiment, when the combine satisfies the following four or five conditions, the grains in the Glen tank 23 are automatically discharged. 1. Sensor Y is X
′ To Z ′. 2. The distance between the sensors Y and Y 'is within a certain range. 3, Article. Side mowing sensor
25 judges the cutting. 4. The running gear lever is at a position higher than a certain speed. 5. The reaper is in the "down" position. Further, the embodiment shown in FIG.
Is configured to be rotatable around the longitudinal axis 26, and when the drive of the discharge spiral at the bottom of the tank is used as a combine, the drive is input from the front side of the tank via the forward / reverse rotation drive device 27 and used as a tank truck. In case of vertical feed auger 2
It is configured to input from the 8 side.

[Brief description of the drawings]

FIG. 1 is a side view of a main part of a combine.

FIG. 2 is an explanatory diagram of an action in a cereal stalk detection state.

FIG. 3 is a plan view of a combine and a side running tank car.

FIG. 4 is a plan view of the parallel running tank car.

FIG. 5 is a side view of the parallel running tank car.

[Explanation of symbols]

A Combine (working vehicle) B Parallel tank car (parallel vehicle) XYZ Transmitting part ultrasonic sensor X'Y'Z 'Receiving part ultrasonic sensor

Claims (1)

[Claims] 1. A work vehicle such as a combine A and a parallel traveling vehicle which receives and transports the crops of the work vehicle while traveling in parallel with the work vehicle. A work vehicle comprising a detecting means for detecting a positional relationship between the work vehicle and the traveling vehicle, and a traveling driving means on the traveling vehicle side which can be switched between high and low speeds based on a result of the detection. .