JPH0858A - Control section of head-feeding type combine harvester - Google Patents

Abstract

PURPOSE:To obtain a control section of the head-feeding type combine harvester capable of preliminarily preventing the damage of the device due to the clogging of a carriage route and improved in grain-recovering efficiency by disposing a control means for automatically controlling the volume of a grading wind, etc., on the basis of a detected threshing load, etc. CONSTITUTION:In this control section of the head-feeding type combine harvester, an analogue type sensor 22 for detecting the moving distance of a plant foot-carrying chain 14 from a nipping rail 15 in a plant foot-nipping and carrying device 8 for feeding grain culms into a threshing feed chain is disposed, and a control means for automatically controlling at least one of a grading wind volume and a chaff sieve opening degree on the basis of the information of the analogue type sensor 22 is also disposed. An alarm device operated when the analogue type sensor 22 detects that the nipping rail 15 is moved from the plant foot-carrying chain 14 at a larger distance than a prescribed distance is preferably disposed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control unit for a self-removing combine, which is provided with a control means for automatically adjusting at least one of a sorting air volume and a chaff sheave opening based on threshing load detection.
Specifically, it relates to the improvement of the sensor layout.

[0002]

2. Description of the Related Art Conventionally, an analog type sensor is installed in a state in which the thickness of a transport grain culm layer of a threshing feed chain is detected, or in a state in which the thickness of a sorted product layer on a chaff sheave in a sorting section is detected. Based on the above information, the control means automatically adjusts at least one of the selection air volume and the chaff sheave opening so as to increase the selection air volume or increase the opening of the chaff sheave as the detected thickness increases.

[0003]

However, in the detection of the threshed culm layer thickness and the detection processed material layer thickness, the time from the detection of the variation of the sorting load to the actual variation of the sorting load is extremely short. Moreover, especially when the sorting load changes frequently, poor sorting is likely to occur due to control delay, and there is a risk of increased grain collection loss due to grain mixing into straw, improving grain collection efficiency. There was room for improvement in terms of. An object of the present invention is to detect a change in the selection load sufficiently earlier than the actual change in the selection load, and adjust the selection air volume or the chaff sheave opening at an appropriate timing with no control delay.

[0004]

According to a first aspect of the present invention, the amount of movement of the holding rail in the perspective direction with respect to the stock carrier transporting chain in the stock carrier side carrying carrier for supplying grain culms to the threshing feed chain. This is because an analog sensor for detecting the above is provided, and a control means for automatically adjusting at least one of the selection air volume and the chaff sheave opening degree is provided based on the information from the analog sensor.

The characteristic configuration of the invention according to claim 2 is as follows:
An analog sensor that detects the amount of movement of the holding rail in the perspective direction with respect to the stock carrier transport chain that supplies grain culms to the threshing feed chain is provided, and selection is performed based on the information from this analog sensor. An alarm device is provided which is provided with a control means for automatically adjusting at least one of the air volume and the chaff sheave opening, and which is activated when the analog type sensor detects that the holding rail has moved away from the stock conveyor chain by a set amount or more. Equipped.

[0006]

According to the configuration of the invention of claim 1, the amount of movement of the holding rail in the perspective direction with respect to the stock carrier transport chain, that is, the grain culm supplied to the threshing device, is provided early before being supplied to the threshing feed chain. Since the amount of air is detected by an analog sensor to predict fluctuations in the sorting load, the sorting air volume and chaff sheave opening can be automatically adjusted by the control means at the correct timing without adverse effects due to control delays, and the grain into the straw The grain collection efficiency can be sufficiently improved by reliably and sufficiently suppressing the grain collection loss due to mixing.

Further, according to the configuration of the invention as claimed in claim 2, the analog type sensor for predicting the sorting load also functions as a clogging detection sensor in the stocker side holding and conveying device, and excessive grain culms are conveyed and clogging occurs. When it occurs, an alarm can be issued to prevent further development of the jam condition.

[0008]

Therefore, according to the invention of claim 1,
It has become possible to provide a higher performance self-removing combine that can sufficiently improve the grain collection efficiency by automatically adjusting the selection air volume and the chaff sheave opening at an appropriate timing.

Further, according to the invention of claim 2, the above-mentioned effect of the invention of claim 1 is brought about, and at the same time, it is possible to prevent the damage of the device due to the transport clogging while reducing the cost by sharing the sensor. became.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, a cutting unit 2 is connected to a front portion of a traveling vehicle that runs on a crawler type traveling device 1 by a hydraulic cylinder 3 swinging around a support shaft 4 so as to be vertically movable. Along with this, a threshing device 7, a driving part, a control part, etc. are mounted on the vehicle body, and the planted grain culm raising device 5, the cutting blade 6, and the harvested culm are conveyed to the upper rear direction, and the threshing device 7 is placed in a sideways tilted posture. The stocking side holding and conveying device 8 and the tip side locking and conveying device 10 to be sent to the threshing feed chain 9 are provided in the cutting section 2 to constitute a self-removing combine.

As shown in FIGS. 2 to 4, in order to form the stocker side holding and conveying device 8, a holding rail 15 is provided so as to face the stocker carrying chain 14 wound around the drive wheel and the idle wheel. The supporting member 11 is fixed to the curved mounting frame 13 that is disposed close to and bypasses the transport path, and the swing arm 12 is provided.
Is attached to the support member 11 with the support shaft 19, the holder 16 is attached to the swing arm 12 so as to be rotatable around it, and the pair of support bolts 17 of the holding rail 15 are fixed to the holder 16 with the nut 20. 12, a torsion spring 18 for urging the holder 16 and the holding rail 15 in the direction of approaching the stock carrier chain 14 is externally fitted to the support shaft 19, and the urging action point is applied to the swing arm 12. It is configured so that the urging reaction force point is locked to the support member 11 and the grain stalk stock source is held and transported by the cooperation of the grain stalk stock source transport chain 14 and the sandwiching rail 15. The torsion spring 18 is provided with an operation lever 18a for releasing the lock of the torsion spring 18 from the support member 11 in order to separate the holding rail 15 from the stock conveyor chain 14 and release the jam of the grain culm transportation. is there.

A weak holding member 25 made of a soft spring wire is disposed between the holding rail 15 and the threshing feed chain 9 and is attached to the rear end of the holding rail 15 so as to face the rear portion of the stock carrier transport chain 14. It is attached to the holder 26, and is configured so that the grain culvert baton can be touched smoothly in a sideways posture without causing the grain culm to fall off at the grain culm delivery position to the threshing feed chain 9.

As an example of an analog type sensor, a sensor 22 composed of a rotary volume is fixed to a support member 11, and a detection swing arm 22a of the sensor 22 is brought into contact with the swing arm 12 by a return spring incorporated in the sensor and held. It is installed so that it swings integrally with the rail 15, and the sensor 22
Is configured to detect the amount of movement of the holding rail 15 in the distance direction with respect to the stock carrier transport chain 14, that is, the variation in the sorting load due to the change in the amount of transported grain culm.

As shown in FIG. 6, the speed change actuator (electric cylinder) 24 of the belt type continuously variable transmission 21 that drives the wind-selecting Karako 23 provided in the sorting section A in the threshing device 7,
Rough sorting chaff sheave 2 provided in the swing sorting case 32
An opening degree adjusting actuator (electric motor) 28 for adjusting the opening degree of No. 7, an alarm device 29 for informing the jam of the grain culm conveyance, and a control means 31 for automatically operating the engine automatic stop device 30 based on the information from the sensor 22. If the holding rail 15 is provided farther away from the grain stalk former transport chain 14, that is, as the amount of transported grain culm is larger, the sorting air volume and the chaff sheave opening are increased, and if the transportation rail is clogged, the holding rail 15 will cause the grain to move. The alarm device 29 and the engine automatic stop device 30 are configured to be operated when the distance from the stock carrier chain 14 exceeds the set distance. In other words, before being supplied to the threshing feed chain 9, the amount of movement of the holding rail 15 in the perspective direction with respect to the stock carrier transport chain 14 is detected by the analog type sensor 22 to predict the sorting load fluctuation and delay the control. In order to improve the grain collection efficiency by automatically adjusting the selection air volume and the chaff sheave opening degree by the control means 31 at an appropriate timing with little adverse effect due to the above, and suppressing the grain collection loss due to the grain mixture in the straw. Is configured.

[Other Embodiments] The present invention can also be implemented in the following modes. The type of the analog sensor 22 can be appropriately selected from known types. Based on the information from the analog sensor 22, at least one of the sorting air volume and the chaff sheave opening is controlled by the control means 3
It may be configured to automatically adjust by means of 1. The grain culm transport clogging alarm device 29 and the engine automatic stop device 30 may be operated by other sensors or may be omitted. The traveling speed is automatically adjusted by the control means 31 based on the information from the analog type sensor 22, that is, the traveling rail speed is reduced as the carrying rail 15 moves away from the endless rotation zone 14. You may comprise.

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 drawings]

FIG. 1 is a partial side view of a front part of a combine.

FIG. 2 is a schematic plan view of a grain culm transport unit.

FIG. 3 is a rear view of the longitudinal section of the grain culm transporting unit.

FIG. 4 is an explanatory view of main parts

5 is a view taken along the line AA of FIG.

FIG. 6 is a block diagram of a control system

[Explanation of symbols]

 8 Holding unit for holding stock side 9 Threshing feed chain 14 Holding line for stock holding 15 Holding rail 22 Sensor 31 Control means

Claims (2)

[Claims] 1. The amount of movement of the holding rail (15) in the perspective direction with respect to the stock-source carrying chain (14) in the stock-side holding carrier device (8) for supplying grain culms to the threshing feed chain (9) is detected. An analog sensor (22) is provided, and a control means (31) for automatically adjusting at least one of a sorting air volume and a chaff sheave opening based on information from the analog sensor (22) is provided. Demolding combine control unit. 2. The amount of movement of the holding rail (15) in the perspective direction with respect to the stock carrier transport chain (14) in the stock carrier side carry carrier (8) for supplying grain culms to the threshing feed chain (9) is detected. An analog sensor (22) is provided, and a control means (31) is provided for automatically adjusting at least one of the sorting air volume and the chaff sheave opening based on the information from the analog sensor (22). A self-removing type equipped with an alarm device () which is activated when the analog type sensor (22) detects that the stock source transport chain (14) has moved away from a stock amount by a set amount or more. Combine control unit.