JP2011135794A - Combine harvester - Google Patents

Abstract

It is an object of the present invention to safely clean a combine body by using a blower driven by an engine.
An air passage (5) communicating with a blower (3) on a blower side of a blower (3) is branched into a grain conveying air passage (6) and a cleaning air passage (7). An air path switching device that switches between the state of sending to the grain conveying air path 6 side and the state of sending to the cleaning air path 7 side is provided, and the air path switching device is blown to the cleaning air path 7 side. A cleaning switch is provided to enable connection of the blower clutch 9 when switched to the state, and the blower clutch 9 is operated by operating the cleaning switch only when the parking brake device 11 mounted on the combine body 1 is held in a braking state. A configuration that can be connected.
[Selection] Figure 2

Description

  The present invention relates to a combine equipped with a grain carrying device using an air blower.

  An auger-type grain discharging device that is used to harvest soybeans from grain tanks in order to harvest them without damaging the grains and without damaging the commercial value of the harvester that mainly harvests soybeans. Instead, air conveyance is used in which the grain surface is not easily damaged. And, for example, in Patent Document 1 and Patent Document 2 below, when a combine equipped with a grain unloading device using air is not used for cutting and threshing or unloading of a grain (in Patent Document 1, unloading of a grain) The air that can be used for cleaning, etc. can be taken out at the same time as the work.) Using the air blower installed, the parts of the combine are cleaned, the spreading of the cuttings, and the operation without a cabin. A technique that can be used in a wide range, such as means for blowing out dust like an air curtain in front of a seat and blowing off dust to protect the operator from dust, is disclosed.

Japanese Patent Laid-Open No. 2009-273411 Japanese Patent Laid-Open No. 2002-65047

  Conventionally, in a combine equipped with a grain unloading device that carries out the grain tank of the Glen tank out of the machine using the compressed air blown from the blower (see Patent Document 1), when the harvesting and threshing work or the grain unloading work is not performed There are known techniques for using the blower for other cleaning operations. For example, a technique has been disclosed in which wind blown from a blower is used for cleaning a dust net of a radiator or for blowing off dust floating in front of a driver seat in order to protect an operator from dust.

  In this way, when cleaning the combined vehicle body using the compressed air blown from the blower, in the conventional configuration, the vehicle body is not fixed (the vehicle body is stopped by the parking brake) and the combine vehicle is being cleaned. Have a problem of lack of safety, such as a natural movement or a hand accidentally touching the travel operation lever, causing the travel clutch to malfunction and input and the transmission to be connected.

  In recent years, the technology related to the automatic rotation control device in the engine has been developed, and the engine mounted on this type of combine is also equipped with an automatic rotation control device. The engine rotation control device works automatically, and there are many combines that increase in speed and rotate at high speed. When cleaning with a blower using this type of combine, there is a risk that the engine will be controlled to high-speed rotation as soon as the blower is started by operating the cleaning switch and preparing for the work. .

  In such a case, the cleaning operation using the blower has a problem that a high-pressure wind is sent to the cleaning hose connected to the blower and the hose is swung and turns into a dangerous state.

In order to solve the above problems, the present invention takes the following technical means.
That is, the invention according to claim 1 is an air-type grain unloading device (4) for unloading the grains in the glen tank (2) mounted on the vehicle body (1) to the outside by the compressed air from the blower (3). The air passage (5) communicated with the blower (3) on the side of the blower with the compressed air is branched into a grain conveying air passage (6) and a cleaning air passage (7), and the air passage ( 5) Airway switching that switches between the state where the compressed air from the blower (3) is sent to the grain conveying airway (6) side and the state where it is sent to the cleaning airway (7) side at the branching part of 5) A device (8) is provided, and a cleaning switch (10) is provided that allows the blower clutch (9) to be connected when the air path switching device (8) is switched to the state of blowing air to the cleaning air path (7). The cleaning brake only when the parking brake device (11) mounted on the combine body (1) is held in a braking state. Is obtained by the combined, characterized in that it has a configuration that can connect blower clutch (9) by operating the pitch (10).

  As described above, since the brake is always applied to the combine vehicle body (1) by the parking brake device (11) during the cleaning operation, the vehicle body (1) does not move during the cleaning and is safe. Can be cleaned.

  According to a second aspect of the present invention, an engine (13) equipped with an automatic rotation control device (12) is mounted on the vehicle body (1), the parking brake device (11) is held in a braking state, and the cleaning is performed. The combine according to claim 1, characterized in that when the switch (10) is operated to the side to which the blower clutch (9) is connected, the operation of the automatic rotation control device (12) is restrained. It is a thing.

  Thus, in the cleaning work using the blower (3), when the cleaning switch (10) is operated to the side where the blower clutch (9) is connected, the automatic rotation control device (12) of the engine (13) is operated. Since the blower clutch (9) is connected with the engine (13) rotating at a low speed, the cleaning hose is fed with high-pressure compressed air from the cleaning air passage (7) to the cleaning hose. You can avoid the danger of swaying around.

  According to the first aspect of the invention, when the cleaning work is performed using the blower (3) that blows out the compressed air, the parking brake device (11) always works on the combine body (1) and is in a braking state. Therefore, even if the vehicle body (1) is placed on a sloping ground, or if the travel operation lever is inadvertently touched by a hand and the travel clutch is connected, the vehicle body (1) will not move. Cleaning work can be performed safely.

  According to the second aspect of the invention, in addition to the effect of the first aspect of the invention, when the cleaning switch (10) is operated to connect the blower clutch (9), the automatic rotation control of the engine (13) is performed. Since the device (12) can be checked and started from a low speed, an inadvertent increase in the rotational speed of the engine (13) causes high-pressure compressed air to be sent to the cleaning hose connected to the cleaning air passage (7). It can be avoided that the cleaning hose swells and becomes dangerous.

Block diagram showing the control mechanism of the present invention Combine side view Top view of the combine Glen tank rear view Front view with air path switching device on both branched air paths Side view of the state where the air path switching device is switched to the grain delivery side Front view of the airway switching device switched to the grain carry-out side Side view of the airflow switching device switched to the cleaning side Front view of the airflow switching device switched to the cleaning side Side view of a combine with other embodiments Side view of a combine with other embodiments Glen tank rear view of previous Fig. 11 Side view of a combine with other embodiments

Embodiments of the present invention will be specifically described below with reference to the drawings.
First, as shown in FIG. 2 and FIG. 3, the combine is a general-purpose configuration mainly for harvesting grains such as soybeans, and is a full throw type on the vehicle body 1 equipped with a pair of left and right crawlers 15,15. The threshing device 16 is mounted, and a pre-cutting processing device 17 is mounted on the front side thereof so as to be vertically rotatable. The pre-cutting device 17 has a scraping reel 18 pivoted on the front upper side, and a cutting device 19 having a wide cutting width is provided at a lower position of the pre-cutting processing device 17, and is in a low position behind the cutting device 19. On the receiving frame 20, a transverse feed auger 21 is mounted on the horizontal axis, and the harvested cereals are transported and collected on one side (the left side in the traveling direction in the embodiment), and the side conveyor device 22 It is set as the structure supplied to a conveyance start end part. And the conveyor apparatus 22 is set as the structure which supplies all the cereals conveyed to the terminal part of diagonally upward to the said threshing apparatus 16. FIG.

And as shown in the drawing, the Glen tank 2 is mounted on the vehicle body 1 next to the threshing device 16, and the grain after threshing and sorting is harvested and stored.
Next, as shown in FIG. 2, the grain conveying air passage 6 is connected to the air passage 5 communicated with the blowout port of the blower 3, and the start end portion is connected to the upper portion from the rear side through the lower part of the Glen tank 2. Is further extended toward the front side through the upper part of the combine to constitute the air-type grain unloading device 4. And in the case of an Example, this air type grain carrying-out apparatus 4 is comprised not from a flexible hose in the upper part but the hard discharge cylinder 23, and it can be accommodated in the storage tool 24, and the terminal part has a grain discharge port. 25 is opened. And the said grain conveyance air path 6 makes the said discharge cylinder 23 the up-down direction and the left-right direction (in planar view) so that the position which discharges | emits the grain from the said grain discharge port 25 can be selected above the combine 1. It can be swung to nearly 360 degrees).

  The blower 3 has a wind turbine inside and mounted on the inside of the blower 3. The blower 3 is operated to be turned on / off and switched via the transmission mechanism from the engine 13 mounted on the vehicle body 1. It is configured to be driven by rotational power transmitted through the clutch 9. The blower clutch 9 is connected by the first-stage ON operation of the discharge switch 27 when the grain is carried out, and is connected by the ON operation of the cleaning switch 10 at the time of cleaning work so that transmission is possible.

  Next, as shown in FIG. 2, the grain feeder (grain quantitative feeding device) 26 is disposed between the bottom portion of the grain tank 2 and the grain conveying air passage 6, and is a known device. Therefore, although a detailed description is omitted, a fixed amount of grains can be supplied into the lower grain conveying air passage 6 while rotationally driving the rotary feeding rotor. In addition, the grain feeder 26 is an electric motor by ON operation by pushing in the second step of the discharge switch 27 provided in the driver's seat 32 (as described above, the blower clutch 9 is turned on by pushing the first step). Is driven and rotated.

  Next, as shown in FIGS. 5, 7, and 9, the cleaning air passage 7 includes the air passage 5 communicated with the blower 3 on the grain conveying air passage 6 side and the upper side thereof. It is divided into another air passage 7 and is bifurcated. An air path switching device 8 is arranged and attached between the grain conveying air path 6 and the cleaning air path 7 branched into two, and the start ends of the air paths 6 and 7 divided into two parts. , The switching valve 30 for switching the direction in which the compressed air is fed can be selected and switched from the outside to the grain unloading side and the cleaning side by the switching operation lever 31.

  As described above, the air path switching device 8 includes the switching valve 30 and the switching operation lever 24, and closes the grain conveying air path 6 with the compressed air blown from the blower 3 to the air path 5 by the switching operation. As described above, the cleaning air passage 7 is opened so that the cleaning side can also be taken out. In the case of the embodiment, the cleaning air passage 7 is constituted by a cleaning hose 7a.

  Next, the combine according to the embodiment has a configuration in which the parking brake device 11 is provided so as to apply the parking brake to the vehicle body 1 and the parking brake pedal 33 is disposed in front of the driver's seat 32 for safety when parking and stopping. Yes. In the embodiment, the switching operation lever 31 of the air path switching device 8 is operated to switch the switching valve 30, the cleaning air path 8 is opened, and the grain conveying air path 6 is closed, and then the cleaning switch 10. Is turned on, the blower clutch 9 already described can be connected only when the parking brake device 11 is in a braking state.

  Therefore, in the embodiment, when the compressed air blown from the blower 3 is used on the cleaning air passage 7 side, the parking brake device 11 is surely stopped and the safety is ensured so that the combine does not move. It can be secured.

  And the engine 13 of the combine which concerns on an Example is equipped with the automatic rotation control apparatus 12 which has prevailed in recent years, Each work apparatus which comprises the combine, for example, the threshing apparatus 16, the pre-cutting processing apparatus 17, etc. When the clutch is engaged and operated, the speed is automatically increased and the gear shifts to the high speed side. However, in the case of the embodiment, even if the cleaning switch 10 is turned ON before starting the cleaning operation and the blower clutch 9 is connected and the transmission of the blower 3 is started, at that time, the automatic rotation control device The engine 13 is kept at a normal idling rotational speed without increasing the speed due to the mechanism that controls the engine 12.

  Therefore, in the embodiment, even when the cleaning switch 10 is turned on and the blower clutch 9 is connected and the blower 3 is transmitted, it is possible to avoid high speed from the beginning of driving and the pressure wind is weak. The engine speed can be selected by manual operation. Therefore, the cleaning hose 7a has an effect of avoiding a dangerous state such as turning around while undulating, and performing a cleaning operation safely.

Next, the control mechanism of the embodiment will be described with reference to FIG.
First, on the input side, the controller 35 has a switching valve position sensor 36, a parking brake sensor 37, an engine speed sensor 38, a threshing switch 39, a discharge switch 27, a cleaning switch 10, a discharge cylinder position sensor 40, an engine start switch 41, and the like. And operation information and detection information are input. And the controller 35 is set as the structure which connects the blower clutch 9, the grain feeder 26, the ignition coil 42, the fuel adjustment valve 43, etc. to the output side, respectively, and operate | moves based on the output control signal.

  And as already explained, when the cleaning switch 10 is turned on, the controller 35 is based only on the detection information input from the parking brake sensor 37, and only when the parking brake is applied to the vehicle body 1. A control signal for connecting the blower clutch 9 is output, and the clutch is connected via the actuator. Further, in the case of the embodiment in which the engine 13 equipped with the automatic rotation control device 12 is mounted, the controller 35 operates a mechanism that automatically checks the automatic rotation control device 12 when the cleaning switch 10 is turned on, and the fuel adjustment valve It is possible to control the engine speed by outputting a control signal so that the fuel injection amount during idling rotation is held at 43, thereby suppressing the engine speed increase.

  Next, when the discharge cylinder 23 is in the storage device 24 above the vehicle body 1, the discharge cylinder position sensor 40 inputs information detected to the controller, and even if the discharge switch 27 is turned on, Therefore, the check control in which the blower clutch 9 is not connected works. In this case, when the cleaning switch 10 is turned ON, if the other conditions are satisfied, the controller 35 is connected to the blower clutch 9 even if the detection information of the discharge cylinder position sensor 40 is input. It is set as the structure in which the control which the said check is cancelled | released is possible so that 3 may be driven.

  In the case of the embodiment configured as described above, the combine is stored in a narrow place such as a warehouse, and the discharge cylinder 23 of the air type grain unloading device 4 is stored in a regular storage position. However, there is a feature that the blower 3 can be driven and cleaning work can be performed.

  As described above, according to the embodiment of the present invention, when the clutch of the blower 3 that blows out air is connected in the cleaning operation, the parking brake device 11 always works on the vehicle body 1 of the combine to enter the braking state. Therefore, the vehicle body 1 will not move during cleaning even if the vehicle body 1 moves naturally or if there is a malfunction such as the travel operation lever being inadvertently touched and the travel clutch being connected. It can be safely and safely cleaned.

  And in the case of an Example, when the engine 13 operates the cleaning switch 10 and connects the blower clutch 9, the automatic rotation control apparatus 12 with which the engine 13 is equipped will be restrained, and the threshing apparatus 16 and cutting pre-processing Unlike when the transmission of the device 17 is connected, the control can be started from a low-speed rotation of idling. Therefore, the cleaning hose 7a has an advantage in safety that can avoid a dangerous state in which a high-pressure wind is suddenly injected and suddenly undulates. The operator can perform the cleaning work while freely adjusting the engine speed by manual operation of the accelerator lever.

Next, other examples of the cleaning device using the blower 3 in the air blower grain carry-out device according to the present application will be described.
First, as one embodiment, a combine using a cleaning device in combination with this kind of grain carrying out device is related to starting of the engine 13, and when the switching operation lever 31 of the air path switching device 8 is on the cleaning side, It is set as the structure which prevents clogging in the air path 6 of a grain by making it the structure which checks so that a start cannot be performed. When the switching operation lever 31 starts the engine on the cleaning side and operates the discharge switch 27 in a state where the compressed air from the blower 3 is released to the cleaning hose 7a, the air-type grain unloading device 4 operates as the grain feeder 26 or There is a possibility that the clogging of the grain may occur in the grain conveying air passage, and the check function is held in order to prevent clogging due to an erroneous operation.

  The next embodiment relates to the winding and storage of the cleaning hose 7a. In the case of the embodiment, as shown in FIGS. 2 and 4, the upper portion of the fuel tank 45 installed in the lower space portion of the Glen tank 2 is used. A winding hose is wound around a winding frame 48 provided by forming a winding storage portion 46 on the outer side and stored.

  By configuring in this way, the cleaning hose 7a is wound around the winding frame 48 on the upper outer side of the fuel tank 45 as shown in the drawing, and the fuel tank 45 has many curved surfaces and contacts the hose 7a. However, there is an advantage that the hose is not damaged. Further, the cleaning hose 7a is located away from the transmission mechanism of the glen tank 2 and the threshing device 16, and has an advantage that there is no possibility of interfering with these.

  As shown in FIG. 2, the cleaning hose 7 a is configured to support a portion near the base portion branched from the air passage 5 and extending upward to the machine body side by a support tool 47. In this case, when the support 47 of the embodiment is U-shaped and has a configuration that can hold the hose by providing flexibility, there is an advantage that the cleaning hose 7a is not forced.

Next, a few examples will be described regarding the temperature of the compressed air blown from the blower 3.
First, as shown in FIG. 8 and FIG. 9, the compressed air ejected from the blower 3 is a gap between the switching valve 30 and the hole diameter (blockage degree) of the air passages 6 and 7 depending on the operation angle of the switching operation lever 31. It has been found that (the gap through which the wind escapes) is generated, and a difference occurs in the temperature of the blowing air. For example, in the case of the embodiment shown in FIG. 8, the switching operation lever 31 is switched to the cleaning position (the switching valve 30 closes the grain conveyance air passage 6 and opens the cleaning air passage 7 as shown in FIG. The compressed air flowing into the cleaning air passage 7 is injected in a compressed state from the large-diameter air passage (air passage 5) into the small-diameter air passage (cleaning air passage 7). As a result, the harmful effect of rising to a high temperature occurs.

  Therefore, in the embodiment, when the cleaning operation is started, the switching valve 30 is set to the grain even at the position where the switching operation lever 31 is switched to cleaning (the position where the switching operation lever 31 is switched to the extreme end position) in order to prevent a rapid temperature rise. The conveying air passage 6 is closed completely to the extent that a gap for the escape of pressurized air is created without being completely closed.

  Since the embodiment configured in this manner can suppress an increase in the temperature of the compressed air, it is possible to work safely by preventing harmful effects (burns, fires, etc.) occurring in the cleaning hose 7a and the mounting portion due to the high temperature. There is an advantage that can be.

  Next, in the embodiment shown in FIG. 10, the start end of the cleaning hose 7a can be freely attached to and detached from the middle of the grain conveying air passage 6 on the lower side in the conveying direction from the grain feeder 26, as shown in the drawing. The mounting part 50 which can be attached to is comprised. Thus, if the cleaning hose 7a comprises a connection part in the middle of conveyance of the air-type grain carrying-out apparatus 4, and provides the attachment / detachment mechanism which can be attached or detached in a short time as an optional apparatus, a grain carrying-out work will be carried out. When not, the air blower 3 can be used effectively.

In this case, the cleaning hose 7a can be widely spread if the attachment / detachment mechanism of the mounting portion 50 is a one-touch type.
Next, the embodiment shown in FIGS. 11 and 12 will be described.

  In the embodiment, the air passage 5 is provided to be branched into a grain conveyance air passage 6 and a dry air take-out air passage 51 instead of the cleaning air passage 7, and the end portion of the dry air take-out air passage (hose) 51 is provided. Are connected to the lower part of the Glen tank 2 so that the compressed air from the blower 3 is used as the drying air. The dry air supply device of the embodiment can be configured by using the switching operation lever 31 and the switching valve 30 constituting the cleaning device already described as they are.

  When configured in this manner, the embodiment can be effectively used for grains stored in the grain tank 2 sequentially with the combine operation, particularly when there is a lot of moisture, and will be described in the previous embodiment. As described above, since the temperature of the compressed air can be increased, there is a practical effect that enables effective preliminary drying.

  Next, the embodiment shown in FIG. 13 relates to the mounting position of the antenna 52 of the remote control auger. This type of combiner has a configuration in which each device is remotely controlled using a remote controller. For example, in the case of an air-type grain unloading device 4, a discharge tube (grain conveying air passage 6) 23 is assisted. There are cases where the worker moves to the grain discharge position by turning up and down or turning by remote control operation while being at a position away from the vehicle body 1 of the combine.

  Therefore, as shown in FIG. 13, the antenna 52 according to the embodiment includes a high pre-cleaner 55 provided behind the roof 54 of the cabin 53 on the Glen tank 2, and a base turning center position of the discharge cylinder 23. The height is such that the antenna function can be exhibited (the height that does not come out above the line connecting the upper portion of the cleaner 55 and the base rotation center of the discharge cylinder 23). .

  This type of combine protects the entire vehicle body 1 by covering it with a seat cover when stored and stored in a warehouse or the like. However, in the conventional configuration, the antenna 52 is bent and damaged by the seat cover covering the vehicle body 1. There was something to be done.

  In the embodiment, the antenna 52 in the upper part of the combine is protected from an accident caused by the seat cover as described above, and is attached to a position where it is not easily damaged so that it can be used for a long time.

DESCRIPTION OF SYMBOLS 1 Car body 2 Glen tank 3 Blower 4 Pneumatic grain unloading device 5 Air path 6 Grain conveyance air path 7 Cleaning air path 7a Cleaning hose 8 Air path switching device 9 Blower clutch 10 Cleaning switch 11 Parking brake device 12 Automatic rotation control Device 13 Engine

Claims (2)

  In a combine equipped with an air-type grain unloading device (4) for unloading the grain in the Glen tank (2) mounted on the vehicle body (1) to the outside of the machine by compressed air from the blower (3), the blower (3 ) Branch the air passage (5) communicating with the compressed air blowing side into a grain conveying air passage (6) and a cleaning air passage (7), and a blower (3) at the branch portion of the air passage (5). Provided with an air path switching device (8) for switching between a state of sending the compressed air from the side to the grain conveying air path (6) and a state of sending the air to the cleaning air path (7). A cleaning switch (10) is provided to enable connection of the blower clutch (9) when the switching device (8) is switched to the state of blowing air to the cleaning air passage (7), and is mounted on the combine vehicle body (1). The blower is operated by operating the cleaning switch (10) only when the parking brake device (11) is held in a braking state. Combine, characterized in that it has a configuration capable of connecting a latch (9).   An engine (13) equipped with an automatic rotation control device (12) is mounted on the vehicle body (1), the parking brake device (11) is held in a braking state, and the cleaning switch (10) is moved to a blower clutch ( The combine according to claim 1, wherein the operation of the automatic rotation control device (12) is restrained when operated to the side to which 9) is connected.

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