KR102406944B1 - Combine - Google Patents

Abstract

Provision of a combine that makes it easy to confirm the closing posture of the rail even if a configuration in which the posture can be changed between the closed posture and the open posture is adopted with respect to the feed chain. Moreover, securing the electric motor operation reliability in the grain stem conveying apparatus containing a feed chain and a rail.
It is driven by the rotational power of the engine E, and the feed chain 7 which conveys the grain stem mowed by the harvesting part 1 to the threshing apparatus 4, and the grain stem conveyed by the feed chain 7 may be guided from above A rail mechanism 27 having a rail whose posture can be changed between a closed posture close to the feed chain 7 and an open posture spaced upward from the feed chain 7, and detecting the open posture of the rail mechanism 27 The rail attitude detection part 260 and the engine drive management part 220 which prohibits the drive of the engine E on condition of detection of the open attitude|position by the rail attitude detection part 260 are provided. Moreover, the electric motor which makes grain stem conveying apparatus CU shift from a 1st state to a 2nd state by rotation exceeding the grain stem conveying apparatus CU which can change a state to a 1st state or a 2nd state, and the predetermined rotation angle from a home position. An electric motor unit MU having (81, 119), a minute rotation command unit 231 outputting a minute rotation instruction for minutely rotating the electric motor unit MU by a predetermined rotation angle or less, and a rotation detector for detecting rotation of the electric motor 83 and 119A, and an abnormality determination unit 240 that determines the occurrence of an abnormality when minute rotation of the electric motor is not detected by the rotation detectors 83 and 119A despite the output of the minute rotation command. .

Description

combine {COMBINE}

This invention relates to the combine provided with an engine, the harvesting|reaping part driven by engine power, a feed chain, and a threshing apparatus.

As the above combine, the combine described in patent document 1 is already known, for example. The combine of patent document 1 is equipped with the rail which clamps a harvesting grain stem with a feed chain in the position which opposes up and down with respect to a feed chain. In such a combine, in order to facilitate maintenance of the feed mouth, it is necessary to separate the rail from the feed chain. However, when the posture of the rail is configured to be changeable between the closed posture and the open posture in order to greatly open the sudden opening, it is necessary to confirm that the rail is in the closed posture reliably at the end of maintenance or the like.

The combine by patent document 2 is provided with the feed chain clutch which can switch between the transmission state which transmits power to a feed chain, and the interruption|blocking state which interrupts|blocks the power to a feed chain. In this feed chain clutch, a cam-driven clutch operation device for input and cut-off operations is employed. This clutch operation device is provided with a drive device that generates a driving force, and a cam mechanism driven by the drive device, and the cam mechanism is driven by the drive device, whereby the feed chain clutch is switched to the shut off state. In order to more quickly switch the feed chain clutch to the shut-off state, it is necessary to rapidly displace the cam mechanism (cam plate) to a predetermined position. For that purpose, an electric motor is used as the displacement driving force.

Moreover, as for the combine by patent document 1, the reliability of the drive control becomes important. The rail which clamps a harvesting grain stem with a feed chain is provided in the position which opposes a feed chain and up and down. Thus, in the combine in which the grain stem conveying apparatus which conveys a harvesting grain stem to a threshing apparatus contains a feed chain and a rail, in order to facilitate maintenance of the feeding mouth area where the opening part of a feed chain and a rail is located, a rail from a feed chain need to get away When the posture of the rail with respect to the feed chain is configured such that the posture can be changed between the closed posture and the open posture, an electric motor is suitable as a drive source for a quick posture change, but the reliability of the drive control becomes important.

Japanese Patent Laid-Open No. 2012-191942 Japanese Patent Laid-Open No. 2010-166866

From the above situation, even if a configuration capable of changing the posture between the closed posture and the open posture is adopted with respect to the feed chain, it is required to easily confirm the closed posture of the rail.

Moreover, when employ|adopting an electric motor as a driving force of the state change in the grain stem conveying apparatus containing a feed chain and a rail, it is calculated|required that a combine operates with high reliability also in the packaging etc. which are use environments.

The combine by this invention provided with the engine, the harvesting part driven by the rotation power of the said engine, and a threshing apparatus is driven by the rotation power of the said engine, and the grain culm mowed by the said harvesting part The feed chain conveyed to the said threshing apparatus, and the closed attitude|position close to the said feed chain so that the grain stem conveyed by the said feed chain is guided from above, and the open attitude|position spaced apart upward from the said feed chain A rail which can change an attitude|position between A rail mechanism having a rail mechanism, a rail attitude detection unit that detects an opening posture of the rail, and an engine drive management unit that prohibits driving of the engine under the condition of detection of the opening position by the rail attitude detection unit.

According to this structure, when a rail mechanism becomes an opening attitude|position, the opening attitude|position of a rail mechanism is detected by a rail attitude detection part, and driving of an engine is prohibited using detection of the opening attitude|position as a trigger. Therefore, an engine is driven with a rail mechanism turned into an open attitude|position, As a result, it is prevented that a threshing apparatus, a feed chain, etc. drive.

In one preferred embodiment of the present invention, a clutch that inputs and cuts off power from the engine to the threshing apparatus is provided, and the engine drive management unit drives the engine with the input state of the clutch as an additional condition. forbid According to this structure, when driving of an engine is not prohibited only conditionally on the opening attitude|position of a rail mechanism, and when power transmission to a threshing apparatus is interrupted by a clutch, even if a rail mechanism is an open attitude|position, an engine can be driven have. That is, in the situation where even a threshing apparatus drives in the open attitude|position of a rail mechanism, the drive of an engine is permitted. Thereby, since traveling becomes possible, even under the condition that a rail mechanism cannot change to a closed posture, a combine can be moved.

The opening posture of the rail mechanism occurs both during engine driving and during engine stop. For this reason, it is preferable that the engine drive management section have two functions with respect to prohibition of engine drive. One is that, when the open attitude is detected by the rail attitude detection unit before starting the engine, the engine drive management unit prohibits the engine from starting. Another is that, when the open attitude is detected by the rail attitude detection unit while the engine is being driven, the engine drive management unit stops the engine being driven.

In one preferred embodiment of the present invention, there is provided a normally closed rail open detection switch that closes the contact point during the closing posture of the rail mechanism and opens the contact point during the open posture, wherein the rail posture detecting unit includes: and a current flows through the rail open detection switch to detect the open posture of the rail mechanism. The rail open detection switch is unsuitable for detecting the open posture of the rail mechanism, since the rail posture detecting unit outputs an erroneous detection result when the open posture of the rail mechanism cannot be detected due to disconnection or poor connection of the signal line. This problem is solved by making the rail open detection switch a normally closed type, and employing a configuration that detects the open posture of the rail mechanism when no current flows in the circuit of the rail open detection switch.

In one preferred embodiment of the present invention, a manual operation tool for manually changing the posture of the rail mechanism and a rail opening operation switch for electrically driving the posture change of the rail mechanism are provided. As a result, the operator can change the posture of the rail mechanism in a manner adapted to the situation, which is preferable.

The combine by this invention provided with the engine, the harvesting part and threshing apparatus driven by the rotation power of the said engine, the grain stem conveying apparatus which can change a state to a 1st state or a 2nd state, and a home position (waiting for start of a motor) The electric motor unit which has an electric motor which shifts the said grain stem conveying apparatus from the said 1st state to the said 2nd state by rotation exceeding a predetermined rotation angle from A minute rotation command unit for outputting a minute rotation command for minute rotation, a rotation detector for detecting rotation of the electric motor, and a minute rotation of the electric motor is detected by the rotation detector despite the output of the minute rotation command An abnormality determination unit that determines occurrence of an abnormality when it does not occur is provided.

According to this configuration, whether the electric motor unit serving as the power source for changing the grain stem conveying apparatus to the first state or the second state operates normally, for example, whether the electric motor unit does not operate normally due to disconnection or poor connection. , it can be checked by micro-rotating the electric motor unit. A command is given to the electric motor constituting the electric motor unit to perform a minute rotation that does not lead to a state change of the grain stem conveying device, and as a result, the electric motor does not rotate, or the rotation corresponds to the minute rotation If it is not reached, it is considered that an abnormality has occurred. Thereby, the reliability of the state change of the grain stem conveying apparatus which uses an electric motor unit as a drive source improves.

In one preferred embodiment of the present invention, a clutch operated by the clutch motor of the electric motor unit, and a feed chain that conveys a harvesting pole to the threshing apparatus with engine power transmitted through the clutch are provided, and the feed A chain is included in the said grain stem conveyance apparatus, and while the said clutch becomes a power transmission position in a said 1st state, it is comprised so that the said clutch may become a power cutoff position in a said 2nd state. According to this configuration, when the feed chain is to be stopped urgently, the clutch motor is rotated to disconnect the clutch, and power transmission to the feed chain can be interrupted. This clutch motor is preferable because its reliability can be confirmed by the micro-rotation process described above.

In one preferred embodiment of the present invention, the posture is changed by the rail motor of the electric motor unit to the closed posture to guide the grain stem conveyed to the threshing apparatus by the feed chain or to the open posture spaced apart from the feed chain. is provided, and the said rail mechanism is included in the said grain stem conveyance apparatus, and while it becomes the said closed posture in a said 1st state, it is comprised so that it may become the said open posture in a said 2nd state. According to this configuration, when the rail mechanism is to be urgently opened, it is only necessary to rotate the rail motor. In addition, the rail motor is preferable because its reliability can be confirmed by the above-described micro-rotation processing.

In one preferred embodiment of the present invention, the minute rotation command unit is configured to reverse the electric motor in order to eliminate the minute rotation when a minute rotation of the electric motor by the output of the minute rotation command is detected. Consists of. The problem that the micro-rotation which generate|occur|produces by a micro-rotation process accumulates by this structure, and it becomes the rotation amount by which a grain stem conveying apparatus leads to a state change is prevented.

When abnormality is found in the operation check of a motor etc. by a micro rotation process WHEREIN: The state change calculated|required for the emergency of a grain stem conveyance apparatus will become impossible. From this, in one preferred embodiment of the present invention, an engine drive management unit that prohibits driving of the engine when the occurrence of the abnormality is determined is provided. Thereby, with the function of an electric motor unit incomplete, the problem that a combine drive|works and a threshing apparatus and a feed chain drive is prevented.

In one preferred embodiment of the present invention, the minute rotation by the minute rotation command unit is executed as an initial check processing performed before starting the engine by a key switch, and when the occurrence of the abnormality is determined, the engine start is it is forbidden Thereby, it is preferable because operation failure of the electric motor unit due to disconnection or poor connection, etc. generated during a stop of the combine or during long-term non-use is checked before starting the engine. Of course, since there is a possibility that the operation failure of the electric motor unit may occur even during operation of the combine, it is preferable that the minute rotation by the minute rotation command unit is performed while the engine is being driven. At that time, when it is determined that an abnormality has occurred, the driver may be notified of this or the engine may be stopped.

BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic diagram explaining the basic principle of this invention.
It is a side view which shows a combine.
It is a side view which shows a threshing apparatus and a feed chain.
It is a front view which shows a rail mechanism.
It is a top view which shows a rail mechanism.
It is a left side view which shows a threshing apparatus.
It is a figure which shows the power transmission path in a combine.
Fig. 8 is a cross-sectional view VIII-VIII in Fig. 6;
Fig. 9 is a cross-sectional view taken along line IX-IX in Fig. 6 .
10 is a view showing the operation of the feed chain clutch, (a) is a view showing a state in which the shaft is acting on the first vertical surface, (b) is a view showing the state in which the shaft is acting on the inclined surface; and (c) is a diagram showing a state in which the shaft is acting on the second vertical surface.
Fig. 11 is a left side view showing a state in which the operation member is positioned at the input position;
12 is a cross-sectional view showing the connection between the operation member and the position holding mechanism.
It is a left side view which shows the state in which the position holding to the input position of an operation member was cancelled|released.
Fig. 14 is a functional block diagram showing a control function according to the present invention.
15 is a schematic diagram for explaining the basic principle of the present invention.

Before describing the specific embodiment of the combine by this invention, the basic structure of this invention is briefly demonstrated using FIG. The harvesting part 1 and the threshing apparatus 4 driven by the rotation power of engine E are equipped with the combine illustrated by FIG. The rotational power of the engine E is simultaneously transmitted to the traveling device 2 constituted of a crawler, wheels, or the like via a transmission mechanism or the like. Moreover, the feed chain 7 which comprises grain stem conveying apparatus CU which conveys the grain stem mowed by the harvesting|reaping part 1 to the threshing apparatus 4 is also driven by the engine E. Above the feed chain 7, between the closed posture close to the feed chain 7 so as to guide the grain stem conveyed by the feed chain 7 from above, and the open posture spaced upward from the feed chain 7 A rail mechanism 27 capable of changing the posture is provided. As a control system, on condition that the rail attitude detection part 260 which detects the opening attitude|position of the rail mechanism 27, and the opening attitude|position of the rail mechanism 27 are detected by this rail attitude detection part 260, Engine E An engine driving management unit 220 that prohibits the start of the engine is provided. It is also possible to give the engine drive management unit 220 a function to stop the engine E. The engine driving management unit 220 gives a start prohibition command to the engine control unit 201 when the engine E is to be prohibited from starting while the engine is stopped, or a stop command when the engine E is to be stopped while the engine is being driven. The engine control unit 201 controls the engine E according to a command from the engine drive management unit 220 .

Since starting of the engine E is prohibited by the engine drive management unit 220 when the rail mechanism 27 remains in the open posture, traveling with the rail mechanism 27 in the open posture and the threshing device 4 The feed chain 7 is prevented from driving.

This combine is equipped with the clutch 31 which inputs and interrupts|blocks the motive power from the engine E to the threshing apparatus 4 at least. The operation of the clutch 31 is performed by a clutch operation lever (not shown). The clutch input position and the clutch disconnect position of this clutch operation lever are detected by the clutch switch SW2 which is one of the sensor switch group SW, and are given to the control system as a detection signal. When it is intended to avoid only driving the threshing apparatus 4 with the rail mechanism 27 in an open posture, this clutch It is added under the condition of the input state in (31).

One of the specific configurations for the rail posture detection unit 260 to detect the open posture of the rail mechanism 27 is a rail open detection switch 150 that turns on/off the rail mechanism 27 in the closed posture and the open posture. It is installed in the mechanism 27, and the signal from this rail opening detection switch 150 is introduce|transduced through the input signal processing part 210 of a control system, and the opening attitude|position of the rail mechanism 27 is detected. At that time, in order to avoid undetection of the open posture due to disconnection of the signal line or poor connection, as the rail open detection switch 150, the contact is closed in the closed posture of the rail mechanism 27 and the contact is opened in the open posture. A normally closed switch is adopted. Accordingly, even in the case of signal line disconnection or poor connection, the rail mechanism 27 is considered to be in the open position.

As a mechanism for changing the posture of the rail mechanism 27 between the closed posture and the open posture, a rocking mechanism, a lifting mechanism, and the like are employable. In any case, as a driving source for changing the posture, manpower or mechanical force or both are used. In the example of FIG. 1, the rotational power of the rail motor 119 (represented by M1 in FIG. 1) with which the electric motor unit MU was equipped as mechanical force is used. For the rail motor 119 , the control system includes a rail posture control unit 250 that generates an open posture command for setting the rail mechanism 27 to an open posture, and a control signal to the rail motor 119 in response to the open posture command. A motor control unit 204 is provided. As an operation tool for setting the rail mechanism 27 operated by the worker to the open position, a rail opening operation switch SW1 which is one of the sensor switch group SW is provided, and based on a signal from this rail opening operation switch SW1 Thus, the rail attitude control unit 250 outputs an open attitude command.

Since the grain stem planted in the corner part of pavement etc. cannot be mowed by a combine, an operator mows by hand. And threshing is performed by driving the threshing apparatus 4 of the combined combine which was stopped, and loading the grain stem mowed by hand on the feed chain 7 first, and sending it to the threshing apparatus 4. The threshing operation accompanying such a manual operation is called a sedimentation operation. In the case of a needle feeding operation, the needle feeding grain stem supply part FT for manually supplying a grain stem to the feed chain 7 is formed in the area|region between the harvesting|reaping part 1 and the threshing apparatus 4.

In addition, before demonstrating specific embodiment of the combine by this invention, the basic structure of this invention is demonstrated simply using FIG. The harvesting part 1 and the threshing apparatus 4 driven by the rotation power of engine E are equipped with the combine illustrated by FIG. The rotational power of the engine E is simultaneously transmitted to the traveling device 2 constituted of a crawler, wheels, or the like via a transmission mechanism or the like. Moreover, the grain stem conveying apparatus CU which conveys the grain stem mowed by the harvesting|reaping part 1 to the threshing apparatus 4 is also driven by the engine E. The grain stem conveyance apparatus CU is a conveyance apparatus, and a state is changeable to the 1st state which is a normal form, or the 2nd state which deviates from a normal form. The state change of grain stem conveying apparatus CU is performed by electric motor unit MU which has at least 1 electric motor, ie, with an electric driving force.

In the example shown in FIG. 15, grain stem conveying apparatus CU is equipped with the feed chain 7 which conveys a harvesting grain stem to the threshing apparatus 4, and the rail mechanism 27 arrange|positioned above the feed chain 7, have. A feed chain clutch 53 is also provided, which is switchable to a power transmission position (input) for transmitting engine power to the feed chain 7 or a power cutoff position (disconnection) for cutting off engine power. The rail mechanism 27 can change a posture between a closed posture close to the feed chain 7 and an open posture spaced upward from the feed chain 7 so as to guide the grain stem conveyed by the feed chain 7 from above. do.

Therefore, the 1st state of grain culm conveyance apparatus CU is the state in which the feed chain clutch 53 is switched to the power transmission position, and the state in which the rail mechanism 27 is changed to the closed attitude|position. Of course, within the scope of the present invention, as the first state of the grain stem conveying apparatus CU, you may handle only one of the states in which the feed chain clutch 53 is a power transmission position or the state in which the rail mechanism 27 is a closed posture. . In addition, the 2nd state of grain stem conveyance apparatus CU is the state in which the feed chain clutch 53 is switched to the power cutoff position, and the state in which the rail mechanism 27 is changed to the open attitude|position. Again, within the scope of the present invention, as the second state of the grain stem conveying apparatus CU, only one of the states in which the feed chain clutch 53 is a power cut-off position or the state in which the rail mechanism 27 is an open posture is handled You can do it. In the example of FIG. 15, let the 1st state and 2nd state of grain stem conveyance apparatus CU be the said two states of the said two states of the feed chain clutch 53, and the rail mechanism 27. As shown in FIG.

The electric motor unit MU is provided with a rail motor 119 (indicated by M1 in FIG. 15 ) and a clutch motor 81 (indicated by M2 in FIG. 15 ). For the transition from the closed posture to the open posture of the rail mechanism 27, a rotation exceeding a predetermined rotational angle from the home position (the starting standby position of the motor) of the rail motor 119 is used. For the transition from the power transmission position to the power cut-off position of the feed chain clutch 53, rotation exceeding a predetermined rotation angle from the home position of the clutch motor 81 is used. Further, a rotation detector 119A (indicated by S1 in Fig. 15) that detects the rotation of the rail motor 119 is provided. A rotation detector 83 (indicated by S2 in Fig. 15) for detecting rotation of the clutch motor 81 is also provided.

The control system of FIG. 15 includes an input signal processing unit 210 , an engine control unit 201 , and a motor control unit 204 . The input signal processing unit 210 is an input interface that inputs various detection signals from the sensor/switch group SW and rotation angle signals from the rotation detectors 119A and 83, performs necessary processing, and sends them to each functional unit of the control system. The engine control unit 201 controls the operation of the engine E by sending a control signal to the engine E. The motor control part 204 sends a control signal to the electric motor unit MU, and controls the operation|movement of each motor 119,81.

Further, the control system includes an engine drive management unit 220 , a motor drive management unit 230 , and an abnormality determination unit 240 . The motor drive management unit 230 includes a minute rotation command unit 231 . The minute rotation command unit 231 outputs a minute rotation command to the rail motor 119 and the clutch motor 81 included in the electric motor unit MU. The minute rotation command output to the rail motor 119 is a small rotation angle that is much smaller than a predetermined rotation angle from the home position of the rail motor 119 necessary for the transition from the closed position to the open position of the rail mechanism 27. This is a command to rotate the motor 119 . The minute rotation command output to the clutch motor 81 is a minute rotation much smaller than a predetermined rotation angle from the home position of the clutch motor 81 required for the transition from the power transmission position to the power cutoff position of the feed chain clutch 53 . It is a command to rotate the clutch motor 81 by an angle.

The abnormality determination unit 240 is minute in the rail motor 119 or the clutch motor 81 or both included in the electric motor unit MU despite the output of the minute rotation instruction from the minute rotation instruction unit 231 . When rotation is not detected by the corresponding rotation detectors 119A, 83, it is determined that an abnormality has occurred. The above includes disconnection or connection failure of signal lines, control lines, and power lines, failures of the rail motor 119 or clutch motor 81, failures of other operating devices, and the like.

When the minute rotations of the rail motor 119 and the clutch motor 81 performed for the above-mentioned abnormality check are accumulated, a state change is finally caused. To avoid this, when minute rotation of the corresponding motor by the output of the minute rotation command is detected, the minute rotation command unit 231 also outputs a command to reverse the corresponding motor in order to eliminate the minute rotation.

The engine drive management unit 220 outputs to the engine control unit 201 a command for prohibiting the driving of the engine E when the abnormality is determined by the abnormality determination unit 240 . More specifically, a start prohibition command for prohibiting the start of the engine E if an abnormality is determined when the minute rotation by the minute rotation command unit 231 is executed as an initial check processing performed before engine start by the key switch KSW This is output. In addition. When the constant occurrence is determined when the minute rotation by the minute rotation command unit 231 is executed during engine driving, a stop command for stopping the driving of the engine E is output.

Since the grain stem planted in the corner part of pavement etc. cannot be mowed by a combine, an operator mows by hand. And threshing is performed by driving the threshing apparatus 4 of the combined combine which was stopped, and loading the grain stem mowed by hand on the feed chain 7 first, and sending it to the threshing apparatus 4. The threshing operation accompanying such a manual operation is called a sedimentation operation. In the case of a needle feeding operation, the needle feeding grain stem supply part FT for manually supplying a grain stem to the feed chain 27 is formed in the area|region between the harvesting|reaping part 1 and the threshing apparatus 4.

Next, one of specific embodiment of the combine by this invention is demonstrated using drawing. In FIG. 2, as an example of a combine harvesting crops such as rice or barley, a self-harvesting combine is shown. The mowing part 1 which mowings a planting grain stem is provided in the front part in a combine. A crawler-type traveling device 2 capable of traveling is provided behind the harvesting unit 1 . A body frame 3 is provided above the traveling device 2 .

On the left side on the base frame 3, the threshing apparatus 4 which threshes a harvesting grain stem is provided. In the back of the threshing apparatus 4, the cutting device 5 for cutting the height is provided. In the left direction of the threshing apparatus 4, the feed chain 7 which conveys a harvesting grain stem to the threshing apparatus 4 is provided.

The driving part 6 and the engine E are provided in the right front part on the body frame 3 . The grain tank 8 which stores a grain in the right rear part on the base frame 3 is provided. In the grain tank 8, the unloader 9 for taking out the grain in the grain tank 8 is provided.

By the above structure, a combine mows a planting grain culm with the harvesting part 1, traveling with the traveling apparatus 2, and conveys a harvesting grain culm to the threshing apparatus 4 with the feed chain 7, and harvests, The grain stem is threshed with the threshing apparatus 4 . And after a harvesting grain stem is threshed with the threshing apparatus 4, a grain is stored in the grain tank 8. Hung can be discharged to the pavement as it is, but can also be cut with the hump cutting device 5 and discharged to the pavement.

As shown in FIG.3 and FIG.4, the upper part of the threshing apparatus 4 is provided with the chamber 10. In the chamber 10, the barrel 11 for a threshing process is rotatably provided around the barrel shaft center Y1 of the front-back direction (arrow R1 direction shown in FIG. 4). The barrel 11 has a plurality of grade teeth 12 . Below the barrel 11, the water net 13 which drains the processed material (threshing processed material) obtained by the threshing process is provided.

In the left direction of the processing chamber 10, the feed chain 7 which clamps and conveys a harvesting-grain stem along the supply opening 10a of the processing chamber 10 is provided. The rail mechanism 27 which clamps a harvesting grain stem together with the feed chain 7 is provided in the position which opposes the feed chain 7 up and down. A dust exhaust fan 14 for discharging dust to the outside and an exhaust chain 15 for conveying the exhaust air to the exhaust cutting device 5 are provided in the rear of the processing chamber 10 .

In the lower part of the threshing apparatus 4, the rocking|fluctuation sorting apparatus 16 for rocking|fluctuation sorting, and the main tuyere 17 for wind sorting, the secondary tuyere 18, and the 2nd winnowing fan 19 are provided. At the rear of the main tuyere 17, the No. 1 recovery part 20 and the No. 2 recovery part 21 are provided in order from the front.

No. 1 recovery unit 20 is to recover the grain of the No. 1 water. In the No. 1 collection|recovery part 20, the No. 1 transverse screw 22 which conveys the grain of No. 1 in the left-right direction is provided. In the No. 1 collection|recovery part 20, the grain cultivation apparatus 23 which carries out grain conveyance of the grain of the No. 1 product to the grain tank 8 is provided continuously.

No. 2 recovery unit 21 is to recover the grain of the No. 2 water. The No. 2 transverse screw 22a which conveys the grain of the No. 2 product to the left-right direction is provided in the No. 2 collection|recovery part 21. In the No. 2 collection|recovery part 21, the No. 2 reduction|restoration apparatus 21a which reduces the grain of the No. 2 with the shaking|fluctuation sorting apparatus 16 is provided continuously.

By the above structure, in the threshing apparatus 4, a threshing process is carried out in the barrel 11, while a harvesting grain stem is clamped and conveyed by the feed chain 7, and a threshing process material falls from the water net 13. And with respect to the threshing processed material which fell from the water net 13, the shaking|fluctuation sorting by the shaking|fluctuation sorting device 16, and the balloon staring by the main tuyere 17, the secondary tuyere 18, and the 2nd tuyere 19 are implemented do. Thereby, the single granulated grain with a large specific gravity is collect|recovered as a No. 1 product by the No. 1 collection|recovery part 20 of the front, and grain is conveyed to the grain tank 8 by the grain-raising apparatus 23. Moreover, the grain with a small specific gravity is collect|recovered as a 2nd product by the 2nd collection|recovery part 21 of the back, and it is reduce|restored to the shaking|fluctuation sorting apparatus 16 by the 2nd reduction|reduction apparatus 21a.

Next, the rail mechanism 27 is demonstrated with reference to FIG.3, FIG.4, FIG.5.

3 and 4, the rail mechanism 27 clamps a harvesting stem with the feed chain 7 in the position which opposes the feed chain 7 up and down. The rail mechanism 27 is configured so as to be able to swing vertically around the lateral axis X4. The rail mechanism 27 is pressed by the damper 100 (corresponding to the "pressing mechanism" according to the present invention) so as to swing upward. The rail mechanism 27 is configured to be positioned so as to be vertically opposed to the feed chain 7 by the positioning mechanism 98 . When the positioning by the positioning mechanism 98 is canceled, the rail mechanism 27 is configured to swing upward to a position where the inlet 10a is opened by the damper 100 .

The rail mechanism 27 includes a rail 101 and a rail frame 102 . Rail 101 is to clamp the harvesting stem together with the feed chain (7). The rail 101 is a position which opposes the feed chain 7 up and down, WHEREIN: It is comprised so that it may follow the upper conveyance path|route of the feed chain 7 . The rail 101 is comprised from the length which spans the full length of the shaft center Y1 direction of the barrel 11 at least.

The rail frame 102 supports the rail 101 . Specifically, the rail frame 102 elastically supports the rail 101 via a plurality of springs 103 .

In detail, in the rail frame 102 , a plurality of pipes 104 are installed in the vertical direction at predetermined intervals in the longitudinal direction of the rail frame 102 . A plurality of rods 106 inserted into the pipe 104 are provided on the rail 101 in the vertical direction at predetermined intervals in the longitudinal direction of the rail 101 . A spring 103 is fitted to the rod 106 from the outside. An upper spring receiver 105 that receives the upper end of the spring 103 is fixed to the pipe 104 . A lower spring receiver (not shown) that receives the lower end of the spring 103 is fixed to the rod 106 . In this way, the rail frame 102 elastically supports the rail 101 via the plurality of springs 103 .

The rail frame 102 is supported so as to be able to swing up and down by an upper side wall body 4A forming a side portion of the class chamber 10 . Specifically, the rail frame 102 is comprised so that vertical rocking|fluctuation is possible around the lateral axis X4 at the back point. The upper side wall body 4A is provided with a rocking shaft 108 for supporting the rear end of the rail frame 102 so as to be able to swing up and down. The rail frame 102 is configured to be vertically oscillating integrally with the horizontal exterior cover 109 covering the upper side wall body 4A. The rail frame 102 is installed on the inner surface side of the horizontal exterior cover 109 with the installation frame 110 interposed therebetween.

The damper 100 is a gas spring type shock absorber. The damper 100 includes a cylinder 111 and a rod 112 that is telescopically inserted into the cylinder 111 . The end of the cylinder 111 is attached to a pin 113 provided on the upper side wall body 4A so as to be able to swing. The end of the rod 112 is provided to the rail frame 102 so that it can swing. Specifically, the end of the rod 112 is attached to the installation stay 114 fixed to the upper surface of the rail frame 102 so that it can swing.

4 and 5 , the positioning mechanism 98 includes a positioning operation lever 115 and an engagement roller 116 .

The positioning lever 115 is provided on the upper side wall body 4A, and is configured to be able to swing around the vertical direction lever axis Z1. The positioning operation lever 115 is swing-driven by the rail motor 119 constituting the electric motor unit MU. The positioning operation lever 115 includes a lever body 115A and a handle portion 115B.

The lever body 115A is supported by the support plate 117 so as to be able to swing. The lever body 115A is constituted by a plate-shaped member. The lever body 115A is configured to be engageable with the engaging roller 116 provided on the rail frame 102 .

The handle portion 115B is connected to the lever body 115A. Specifically, the handle portions 115B are connected in a state where they intersect with the lever main body 115A at a predetermined inclination angle in plan view. The predetermined inclination angle is determined by the handle portion 115B of the barrel 11 in a state in which the positioning mechanism 98 positions the rail mechanism 27 at a position opposite to the feed chain 7 up and down. is set to be parallel or substantially parallel to the Y1 direction of the axis of

The handle part 115B is comprised so that it can fit in the fitting type (clip type) fixture 123 provided on the inner surface side of the horizontal exterior cover 109. As shown in FIG. The handle part 115B protrudes forward rather than the horizontal exterior cover 109 which covers the upper side wall body 4A. Thereby, when the handle part 115B is comprised so that the positioning operation lever 115 can be operated manually, it is suitable as a handle part.

As shown in FIG. 4 , the support plate 117 is provided with a boss portion 117a that supports the lever body 115A so as to be able to swing. The support plate 117 is fixed to the front end of the upper side wall body 4A with bolts 118 . In the support plate 117, a bolt hole 117b long in the vertical direction into which the bolt 118 is inserted is formed. Thereby, the up-down position of the support plate 117 and the positioning operation lever 115 can be adjusted.

As shown in FIGS. 4 and 5 , the rail motor 119 is installed on the front surface of the front wall 4B forming the front part of the class room 10 . The rail motor 119 is operated by operation to the rail opening operation switch SW1 (refer FIG. 14). The rail motor 119 has the output shaft 119a of a front-back direction. The swing arm 120 is connected to the output shaft 119a of the rail motor 119 . The swing arm 120 and the lever body 115A are connected via a link 121 . Moreover, the potentiometer 119A as a rotation detector which detects the rotation angle of the output shaft 119a, ie, the rotation angle of the rail motor 119, is provided in the output shaft 119a.

The engaging roller 116 is engageable with the lever body 115A. The engaging roller 116 is provided on the rail mechanism 27 . Specifically, the engaging roller 116 is rotatably supported by the front end of the rail frame 102 around the roller shaft center Y4 in the front-rear direction.

With the configuration as described above, the rail mechanism 27 is positioned at a position opposite to the feed chain 7 vertically by the stopper effect due to the engagement between the lever body 115A and the engagement roller 116 . do. At this time, the handle portion 115B is fitted to the fixture 123 .

Then, in a state in which the rail mechanism 27 is positioned at a position opposite to the feed chain 7 up and down, when the rail opening operation switch SW1 is operated, it is connected to the output shaft 119a of the rail motor 119 The swing arm 120 swings (in the direction of arrow R2 shown in FIG. 4 ). Then, the positioning lever 115 swings around the vertical lever axis Z1 in the form of being tensioned on the swing arm 120 via the link 121 (arrow R3 direction shown in FIG. 5 ). Then, the positioning operation lever 115 is in contact with the contact member 122 , so that fluctuation in the direction of the arrow R3 is restricted. As a result, when the engagement between the lever body 115A and the engagement roller 116 is released (stopper release), that is, when the positioning by the positioning mechanism 98 is released, the rail frame 102 moves the damper 100 ) oscillates upward to the position where the inlet 10a opens, and the rail mechanism 27 is opened (refer to Fig. 3).

As shown in FIG. 3 , the rail opening detection switch 150 is provided on the base side member of the region close to the base end side of the rail frame 102 . This rail open detection switch 150 has a switch lever 151 which swings around the lateral axis, and turns ON in the upward swinging position and OFF in the downward swinging position. In addition, in the region corresponding to the rail open detection switch 150, an arm 160 of approximately J-shape extending downward to further protrude laterally is fixed to the inner surface of the lever of the rail frame 102 . The protruding portion of the arm 160 is located below the switch lever 151 . When the rail frame 102 swings upward, the projecting portion of the arm 160 pushes the switch lever 151 up to the swinging position, whereby the state of the rail open detection switch 150 is switched. That is, this rail opening detection switch 150 is a normally closed type, and it becomes a energized state in the closed attitude|position of the rail mechanism 27, and becomes a non-energized state in the open attitude|position of the rail mechanism 27. As shown in FIG.

As shown in FIG. 6 , the transmission device 50 which transmits motive power to the feed chain 7 is provided in the rear part of the threshing device 4 . The power of the output shaft 52 of the transmission device 50 revolves around the feed chain 7 . The transmission device 50 is provided with a feed chain clutch 53 that selectively transmits and blocks this power. In addition, the structure of the feed chain clutch 53 is demonstrated in detail later.

As shown in FIG. 7 , the power of the output shaft Ea of the engine E is transmitted to the input shaft Ma of the transmission M via the belt B1. The motive power of the output shaft Mb of the transmission M is transmitted to the harvesting input shaft 1a of the harvesting|reaping part 1 via belt B2. On the power transmission path to the harvesting input shaft 1a, the harvesting clutch (for example, a belt tension type clutch) which can switch to the cutoff state which cuts off the power to the transmission state which transmits power to the harvesting part 1, and the harvesting part 1 ) is provided.

The power of the output shaft Ea of the engine E is transmitted to the counter shaft 25 via the belt B3. A clutch 31 called a threshing clutch is interposed in the belt B3. The power of the counter shaft 25 is transmitted to the barrel 11 , the main tuyere 17 , and the No. 1 transverse screw 22 .

When it demonstrates in detail, the motive power of the counter shaft 25 is transmitted to the barrel 11 via the branch shaft 26 and the belt B4. The power of the counter shaft 25 is transmitted to the main tuyere 17 via the belt B5. The power of the counter shaft 25 is transmitted to the No. 1 transverse screw 22 through the belt B6.

The power of the first transverse screw 22 is transmitted to the second transverse screw 22a, the input shaft 16a of the swing sorting device 16, and the input shaft 51 of the transmission device 50 via the belt B7. The power of the input shaft 51 of the transmission device 50 is transmitted to the input shaft 14a of the exhaust fan 14 . The power of the input shaft 51 of the transmission device 50 is transmitted to the cutting device 5 through the belt B8.

Next, the feed chain clutch 53 is demonstrated using FIGS. 8-13.

8 and 9 , the feed chain clutch 53 is configured to be switchable between a transmission state in which power is transmitted to the feed chain 7 and a cutoff state in which the power to the feed chain 7 is cut off. . The feed chain clutch 53 has a meshable output gear 54 and a transmission cylinder 55 opposite to each other on the output shaft 52 .

The output gear 54 is provided on the output shaft 52 so that relative rotation is possible. The power of the input gear 56 is transmitted to the output gear 54 through the first relay gear 57 , the second relay gear 58 , and the third relay gear 59 . The power of the output gear 54 is transmitted to the output shaft 52 through the transmission cylinder 55 . A claw portion 54a for engagement with the transmission cylinder 55 (claw portion 55a) is formed on the surface (left side surface) of the output gear 54 on the side opposite to the transmission cylinder 55 .

The transmission cylinder 55 is provided so as to be able to rotate integrally with the output shaft 52 and to be movable in the axial direction (left and right direction) of the output shaft 52 . That is, the transmission cylinder 55 is spline-fitted to the output shaft 52 . In addition, the transmission cylinder 55 is urged by the spring 60 so as to move to the output gear 54 side (rightward direction side). A claw portion 55a for meshing with the output gear 54 (claw portion 54a) is formed on a surface (right surface) of the transmission cylinder 55 on the side opposite to the output gear 54 . At the left end of the transmission cylinder 55 , a flange portion 55A having a substantially circular shape when viewed in the axial direction of the output shaft 52 (viewed from the side) is formed.

A first vertical surface 55b, a second vertical surface 55c, and an inclined surface 55d (see Fig. 10) are formed on the surface (right surface) of the flange portion 55A on the side opposite to the output gear 54, have. The first vertical surface 55b and the second vertical surface 55c are formed perpendicular to the output shaft 52 . The first vertical surface 55b and the second vertical surface 55c are formed in a stepped shape. The second vertical surface 55c is located on the output gear 54 side (rightward side) rather than the first vertical surface 55b in the axial direction (left-right direction) of the output shaft 52 . The inclined surface 55d is formed so as to span the outer periphery of the first vertical surface 55b and the outer periphery of the second vertical surface 55c in the axial direction of the output shaft 52 . The inclined surface 55d is formed to have a predetermined cam profile.

11, 12, and 13, the operation member 40 moves to an input position corresponding to the transmission state of the feed chain clutch 53 and a cut-off position corresponding to the cut-off state of the feed chain clutch 53. It is designed to be convertible. The operation member 40 switches the feed chain clutch 53 to the shutoff state by switching to the shutoff position. That is, when the operation member 40 is switched to the blocking position, the delivery cylinder 55 is moved to the disengagement side. Moreover, the operation member 40 has the rocking|fluctuation piece 41 and the shaft body 42. As shown in FIG.

The rocking piece 41 is comprised so that it can rock|fluctuate between the input position and the interruption|blocking position in the circumference|surroundings of the rocking|fluctuation axis|shaft X4 in the left-right direction. The swinging piece 41 is biased by the spring 45 so as to swing toward the input position. The rocking piece 41 is supported on the left side of the delivery case 50A of the delivery device 50 via the rocking shaft 43 of the left-right direction. The rocking piece 41 is provided with the 1st rocking|fluctuation arm part 41a and the 2nd rocking|fluctuation arm part 41b. A spring 45 is connected to the second swing arm portion 41b of the swing piece 41 .

The shaft body 42 is connected to the first swing arm portion 41a via a connecting pin 44 in the left-right direction. The shaft 42 is configured to be spaced apart in contact with the delivery cylinder 55 in a direction orthogonal to the output shaft 52 . The shaft 42 is supported by the transfer case 50A of the transfer device 50 so as to be movable in the vertical direction. When the swinging piece 41 swings toward the blocking position, the shaft 42 comes into contact with the transmission cylinder 55 so as to impart a moving force to the disengagement side (left direction side).

The movement of the feed chain clutch 53 will be described with reference to FIG. 10 .

As shown in Fig. 10 (a), in the state where the shaft body 42 is in contact with the first vertical surface 55b, even when the transmission cylinder 55 rotates, the axial direction of the output shaft 52 (left and right direction) do not move to That is, the feed chain clutch 53 is maintained in the transmission state.

Next, as shown in FIG. 10B , in the state in which the shaft body 42 is in contact with the inclined surface 55d, the delivery cylinder 55 rotates to the occlusion releasing side (left direction side). move slowly That is, the feed chain clutch 53 is transitioning from the transmission state to the cut-off state.

Finally, as shown in Fig. 10 (c), in the state in which the shaft body 42 is in contact with the second vertical surface 55c, even if the transmission cylinder 55 rotates, the output shaft 52 is rotated in the axial direction ( does not move left or right). That is, the feed chain clutch 53 is maintained in the blocked state. Thereafter, the swinging piece 41 swings toward the input position, so that the shaft 42 is spaced apart from the transmission cylinder 55 . Thereby, the transmission cylinder 55 moves to the output gear 54 side (right direction side) by the urging force of the spring 60, and the feed chain clutch 53 is switched to a transmission state.

11 , 12 , and 13 , the position holding mechanism 70 holds the operation member 40 at the input position. The position holding mechanism 70 is configured so as to be able to be linked with the operation member 40 via the link rod 61 (corresponding to the "link member" according to the present invention). The position holding mechanism 70 has a first holding arm 71 connected to the operation member 40 side and a second holding arm 72 connected to the releasing mechanism 80 side. In the body left-right direction, it is arrange|positioned in order of the 1st holding arm 71 and the 2nd holding arm 72 from the body lateral inner side (right direction side). The 1st holding arm 71 and the 2nd holding arm 72 are connected so that a relative rocking|fluctuation is possible, and also has a mutually contactable part so that a relative rocking|fluctuation may be prevented.

A boss portion 71a is provided at one end of the first holding arm 71 . The boss part 71a of the 1st holding arm 71 is pivotably connected to the connecting shaft 61a of the coupling rod 61 around the 1st pivot axis|shaft X1 so that it can swing. In a state in which the connecting shaft 61a of the connecting rod 61 is inserted into the boss portion 71a of the first holding arm 71, the first holding arm 71 and the connecting rod 61 are bolted 73 to each other. It is fixed to prevent falling out by

A boss portion 71b is provided at the other end of the first holding arm 71 . The boss part 71b of the 1st holding arm 71 is connected to the connecting shaft 72a of the 2nd holding arm 72 so that it can swing around the 2nd pivot axis X2. In a state in which the connecting shaft 72a of the second holding arm 72 is inserted into the boss portion 71b of the first holding arm 71, the first holding arm 71 and the second holding arm 72 are The bolt 74 is fixed to prevent it from coming off.

At the other end of the first holding arm 71 , a first contact portion 71c serving as a contactable portion to the second holding arm 72 is formed. The first contact portion 71c is integrally formed with the first holding arm 71 . The 1st contact part 71c is formed so that the part on one side may protrude to the other side by pinching|interposing the boss part 71b (2nd oscillation shaft center X2) among the other ends of the 1st holding arm 71.

A boss portion 72b is provided at the other end of the second holding arm 72 . The boss part 72b of the 2nd holding arm 72 is supported by the rocking|fluctuation shaft 75 so that it can rock|fluctuate around the 3rd rocking|fluctuation shaft center X3. In the state in which the swing shaft 75 is inserted through the boss portion 72b of the second holding arm 72 , the second holding arm 72 and the swing shaft 75 are fixed by bolts 76 to prevent them from coming off. have. A handle 77 and an operation piece 78 are connected to the boss portion 72b of the second holding arm 72 so as to be integrally rotatable, respectively.

The second holding arm 72 is provided with a second contact portion 72c as a portion that can be contacted with the first contact portion 71c. The second contact portion 72c is constituted by a member (plate-shaped member) different from the second holding arm 72 . The second contact portion 72c is being fixed to a surface of the second holding arm 72 on the lateral inner side (right side) of the second holding arm 72 in a state substantially perpendicular to the second holding arm 72 . The 2nd contact part 72c is arrange|positioned inclined with respect to the line which connects the 2nd oscillation shaft center X2 and the 3rd oscillation shaft center X3 when viewed from the side. That is, the second contact portion 72c is inclined so that one end thereof is positioned on one side with the second pivoting shaft X2 interposed therebetween when viewed from the side.

The rocking shaft 75 is being fixed to the left side wall of the threshing apparatus 4 with the bolt 79 via the fixing plate 75a. The rocking shaft 75 and the boss part 72b of the 2nd holding arm 72 are body lateral outward from the left inner side cover 4C which covers the left side wall of the threshing apparatus 4 inside the left outer side cover 4B. It protrudes to the side (left direction side). The handle 77 is connected to the boss part 72b of the 2nd holding arm 72 in the outer side of the left inner side cover 4C so that integral rotation is possible.

The link rod 61 is comprised so that the operation member 40 and the position holding mechanism 70 can be linked. The link rod 61 is arrange|positioned with respect to the rocking|fluctuation piece 41 and the 1st holding arm 71 on the body lateral outward side (left direction side). The link rod 61 is configured to be able to swing around the pivot axis X4 in the left-right direction. The link rod 61 is biased by a spring 63 so as to swing clockwise around the pivot axis X4 as viewed from the left side. The link rod 61 has the link rod body 61A and the link piece 61B.

A link piece 61B is fixed to one end of the link rod body 61A. A spring 63 is connected to an end portion (connection piece 61B) on the side of the operation member 40 among the link rods 61 . A first linkage arm portion 61b and a second linkage arm portion 61c are formed in the link piece 61B. The left side of the first linkage arm portion 61b is fixed to one end of the link rod body 61A. A spring 63 is connected to the second linkage arm portion 61c.

The coupling piece 61B is supported on the left side of the delivery case 50A of the delivery device 50 via the swing shaft 43 in the left-right direction. That is, the link rod 61 is supported by the same swing shaft 43 as the operation member 40 . Moreover, the working pin 64 (corresponding to the "acting part" according to the present invention) in the left and right direction is provided in the coupling piece 61B so as to protrude inwardly (rightward side) of the base body. The action pin 64 is configured to be able to apply a rocking force to the blocking position side with respect to the rocking piece 41 . The action pin 64 is comprised so that contact with the rear surface of the 2nd rocking|fluctuation arm part 41b among the rocking|fluctuation pieces 41 is possible.

11, the release mechanism 80 swings the second holding arm 72 to the side where the contact with the first holding arm 71 is released, whereby the operating member ( 40) release the position hold to the input position. The release mechanism 80 has a wire 82 , a clutch motor 81 , and a potentiometer 83 as a rotation detector that detects the rotation angle of the clutch motor 81 . The clutch motor 81 and the potentiometer 83 are connected to the control apparatus 200 (refer FIG. 14). The clutch motor 81 and the potentiometer 83 are provided on the mounting plate 84 .

The clutch motor 81 operates to swing the second holding arm 72 through the wire 82 to the side where the contact with the first holding arm 71 is released. The clutch motor 81 is driven and operated by the clutch switch SW2 (refer to Fig. 14). The clutch motor 81 is provided from the body lateral inner side (right direction side) with respect to the mounting plate 84. The clutch motor 81 has a motor shaft 81a in the left-right direction. The motor shaft 81a protrudes from the mounting plate 84 to the body lateral outward side (left direction side). A first motor arm 90 and a second motor arm 91 are connected to the motor shaft 81a so as to be integrally rotatable.

The wire 82 is connected to the second holding arm 72 side. The wire 82 has an inner wire 82a and an outer wire 82b. Both ends of the outer wire 82b are supported by wire stays 93A and 93B. One end of the inner wire 82a is connected to the operation piece 78 . The other end of the inner wire 82a is connected to the first motor arm 90 .

Based on the swing angle of the second motor arm 91 detected by the potentiometer 83 which is the rotation detector of the clutch motor 81, it is determined whether the second motor arm 91 is located at the initial position P0. can be judged. The potentiometer 83 is provided from the body lateral inward side (right direction side) with respect to the mounting plate 84. The potentiometer 83 has a potentiometer shaft 83a. The potentiometer shaft 83a protrudes from the mounting plate 84 to the body lateral outward side (left direction side). A potentiometer arm 92 is connected to the potentiometer shaft 83a so as to be integrally rotatable. The potential arm 92 is provided with a contact portion 92a that comes into contact with the second motor arm 91 .

In the mounting plate 84 , a cutout 84a through which the clutch motor 81 enters and a cutout 84b through which the potentiometer 83 enters are formed. The mounting plate 84 is supported by a front support leg 86 and a pair of upper and lower rear support legs 85 .

As shown in FIG. 11 , the first holding arm 71 and the second holding arm 72 come into contact with each other to prevent relative oscillation, so that the operating member 40 is positioned at the input position by the position holding mechanism 70 . maintain. As described above, the first holding arm 71 and the second holding arm 72 are urged by the spring 63 so as to swing clockwise around the pivot axis X4 when viewed from the left side. ) and the side (clockwise around the second pivoting axis X2 when viewed from the left side), it is pressed so as to swing. That is, the state in which the 1st contact part 71c of the 1st holding arm 71 and the 2nd contact part 72c of the 2nd holding arm 72 are in contact by the urging force of the spring 63 is maintained.

Here, in the state in which the 1st contact part 71c of the 1st holding arm 71 and the 2nd contact part 72c of the 2nd holding arm 72 are in contact, the coupling rod 61 sees from the left side, and it pivots There is no clockwise swing around X4. That is, the link rod 61 is in a state in which the first contact portion 71c of the first holding arm 71 and the second contact portion 72c of the second holding arm 72 are in contact, that is, the position holding mechanism 70 ) does not transmit the urging force of the spring 63 to the operation member 40 in a state in which the operation member 40 is positioned at the input position. Therefore, the action pin 64 does not apply a rocking force to the blocking position side with respect to the swinging piece 41 in the state where the position holding mechanism 70 is holding the operation member 40 at the input position.

And as shown in FIG. 13, when the release mechanism 80 operates, the position hold|maintenance to the input position of the operation member 40 by the position holding mechanism 70 will be cancelled|released. More specifically, when the clutch motor 81 is driven by the clutch switch SW2 (see Fig. 14), the first motor arm 90 swings counterclockwise around the motor shaft 81a as viewed from the left side. . Then, via the wire 82 and the operation piece 78, the 2nd holding arm 72 swings clockwise around the 3rd pivot axis|shaft X3 as seen from the left side. Thereby, the contact of the 1st contact part 71c of the 1st holding arm 71 and the 2nd contact part 72c of the 2nd holding arm 72 is cancelled|released. That is, on the side where the second holding arm 72 is released from contact with the first holding arm 71 via the wire 82 by the clutch motor 81 (viewed from the left side, it is clockwise around the third pivoting axis X3). direction) is manipulated to swing.

Here, when the second holding arm 72 swings in the side where the contact with the first holding arm 71 is released (clockwise around the third pivoting axis X3 when viewed from the left side), when viewed from the side, the first The connecting rod 61 applies the urging force of the spring 63 to the operating member 40 at the position (dead point) where the line connecting the pivoting axis X1, the second pivoting axis X2, and the third pivoting axis X3 becomes a straight line. It is switched from a state in which it is not transmitted to a state in which it is transmitted to the operation member 40 . That is, the spring 63 functions as a urging force for bringing the first contact portion 71c of the first holding arm 71 into contact with the second contact portion 72c of the second holding arm 72 , and the swinging piece 41 . It has a function as a pressing force for swinging toward the blocking position (switching the operation member 40 to the blocking position), and these two functions are switched with the dead center as a boundary.

Then, the coupling rod 61 swings clockwise around the swing axis X4 when viewed from the left side by the urging force of the spring 63, and the action pin 64 moves the swing piece 41 (second swing arm part 41b). )), and applies a rocking force to the blocking position side with respect to the rocking piece 41. Then, the swinging piece 41 swings toward the blocking position, whereby the feed chain clutch 53 is switched to the blocking state.

Further, the first contact portion 71c of the first holding arm 71 and the first contact portion 71c of the first holding arm 71 and the second holding arm 72 of the handle 77 are manually rotated clockwise around the third pivoting axis X3 when viewed from the left side. It is also possible to release the contact of the two contact portions 72c and release the position maintenance of the operation member 40 to the input position.

Here, in the state in which the operation member 40 is switched to the blocking position, the wire 82 is relaxed. Accordingly, the handle 77 can be manually rotated counterclockwise around the third pivot axis X3 when viewed from the left side to return to the original position. That is, when the handle 77 is manually rotated counterclockwise around the third pivoting axis X3 when viewed from the left side, the first contact portion 71c of the first holding arm 71 and the second holding arm 72 are separated. By contacting the second contact portion 72c, the operation member 40 can be positioned at the input position.

In Fig. 14, various functional blocks for explaining the control functions related to the attitude change control of the rail mechanism 27 and the input and cut-off control of the feed chain clutch 53 in the control device 200 mounted on the combine are shown. is shown. The control device 200 is a functional unit particularly related to the present invention, and includes an engine control unit 201, a machine control unit 203, a motor control unit 204, an input signal processing unit 210, and a control unit 200A. , the respective functional units are connected to each other by means of an in-vehicle LAN or other data transmission line.

The engine control unit 201 sends a control signal to the engine E to stop the engine E from starting, stopping, or adjusting the engine speed. The motor control part 204 sends a control signal to the electric motor unit MU, and controls the operation|movement of the rail motor 119 and the clutch motor 81. The machine control unit 203 applies a control signal to a hydraulic machine or an electric machine other than the engine E or the electric motor unit MU to perform a desired operation. The machine control unit 203 and the electric motor unit MU may be integrated.

The input signal processing unit 210 also functions as an input interface for the control device 200 , inputs signals from various devices, for example, the sensor switch group SW, performs signal processing as necessary, and performs signal processing for the control device 200 . ) to each functional unit. Here, for convenience of explanation, the clutch switch SW2, the rail opening operation switch SW1, the key switch KSW, the potentiometer 83, the rail opening detection switch 150, and the potentiometer 119A are different from the sensor switch group SW. shown separately. The clutch switch SW2 detects the input position of the clutch 31 or the clutch disconnection position. The rail opening operation switch SW1 is a switch for shifting the rail mechanism 27 to the opening posture. The key switch KSW has at least a first operation position and a second operation position that are sequentially shifted from the OFF position. At the first operating position, each functional unit included in the control system is powered, and the functional unit is started. In the second operating position, the cell motor starts and the engine E starts. The potentiometer 83 functions as a rotation detector of the clutch motor 81 that operates the feed chain clutch 53 . The potentiometer 119A functions as a rotation detector that detects the rotation angle of the rail motor 119 . The rail open detection switch 150 detects that the rail mechanism 27 is in the open position.

The control unit 200A includes, as a functional unit that mainly realizes the function by executing a program, an engine drive management unit 220 , a motor drive management unit 230 , an abnormality determination unit 240 , a rail attitude control unit 250 , A rail attitude detection unit 260 is provided.

The rail attitude detection part 260 detects the opening attitude|position of the rail mechanism 27 based on the detection signal from the rail opening operation switch SW1. The rail attitude|position control part 250 gives the instruction|command which makes the rail mechanism 27 into the opening attitude|position to the motor control part 204 based on the signal from the rail opening operation switch SW1 operated by an operator. Thereby, the motor control part 204 rotates the rail motor 119, and makes the rail mechanism 27 shift from a closed attitude|position to an open attitude|position.

The minute rotation command unit 231 of the motor drive management unit 230 is minute enough not to accompany a change in the state of the rail mechanism 27 or the feed chain clutch 53 with respect to the rail motor 119 and the clutch motor 81 . Outputs the rotation command. This minute rotation generated in the rail motor 119 and the clutch motor 81 is canceled by a reverse minute rotation command from the minute rotation command unit 231 .

In spite of the output of the minute rotation command from the minute rotation instruction unit 231 , the abnormality determination unit 240 determines that the minute rotation corresponding to at least one of the rail motor 119 and the clutch motor 81 has a potential as a rotation detector. When not detected by the siometers 119A and 83, abnormalities such as disconnection or connection failure of signal lines, control lines, and power lines, failure of rail motor 119 or clutch motor 81, failure of other operating equipment, etc. considered to be occurring.

The engine driving management unit 220 has the following two functions.

(a) On condition that the open attitude of the rail mechanism 27 is detected by the rail attitude detection unit 260, the driving of the engine E is prohibited. At that time, when the engine E is to be prohibited from starting while the engine is stopped, a start prohibition command is given to the engine control unit 201 , and when the engine E is to be stopped while the engine is running, the stop command is sent to the engine control unit 201 . give

(b) When abnormal occurrence is determined by the abnormality determination unit 240 , a command for prohibiting driving of engine E, a start prohibition command, or a stop command is output to the engine control unit 201 .

In this embodiment, at the time of maintenance inspection of a combine, by operating the switch for inspection contained in sensor switch group SW, the stop of the engine E, the drive stop of the threshing apparatus 4, and the feed chain clutch 53 Blocking (disconnecting), opening of the rail mechanism 27, etc. can be performed at once. When the maintenance inspection is completed, the connection (input) of the feed chain clutch 53 and the closing of the rail mechanism 27 are performed manually. In that case, even if a maintenance inspector forgets to make it return to the closed posture of this rail mechanism 27, by the function of 200 A of control units, the drive of the engine E, the drive of the threshing apparatus 4, the feed chain ( Since the drive of 7) is prohibited, a combine does not run in the open attitude|position of the rail mechanism 27, and a threshing operation is not performed either.

Hereinafter, other embodiments according to the present invention are enumerated.

(1) The division of the functional units shown in Figs. 1, 14, and 15 is an example, and the integration of each functional unit, but the division of each functional unit is arbitrary. As long as the control function of the present invention is realized, any functional unit structure may be used, and these functions may be realized by hardware or software or both.

(2) The sensor or switch which concerns on this invention, for example, clutch switch SW2, rail opening operation switch SW1, key switch KSW, the potentiometer 83, the rail opening detection switch 150, and the potentiometer 119A. may use a different type of thing from the above-mentioned embodiment, and may arrange|position it at a position different from the above-mentioned embodiment.

This invention is applicable to the combine provided with the grain stem conveying apparatus CU which sends a harvesting-grain stem to the threshing apparatus 4.

1: yeyebu
2: Traveling device
4: threshing device
7: Feed Chain
27: rail mechanism
31: clutch
53: feed chain clutch
83: potentiometer (rotation detector)
119: rail motor
119A: Potentiometer (Rotation Detector)
150: rail open detection switch
200: control device
200A: control unit
201: engine control unit
204: motor control unit
210: input signal processing unit
220: engine driving management unit
230: motor drive management unit
231: Smile rotation command
240: abnormality determination unit
250: rail attitude control unit
260: rail posture detection unit
CU: Grain Stem Conveying Unit
E: engine
Ea: output shaft
FT: Needle Feed Grain Stem Feeder
KSW: key switch
MU: electric motor unit
SW: switch family
SW1: Rail open action switch
SW2: Clutch switch

Claims (13)

As a combine provided with an engine, and a harvesting unit and a threshing device driven by the rotational power of the engine,
A feed chain which is driven by the rotational power of the said engine and conveys the grain stem mowed by the said harvesting part to the said threshing apparatus;
A rail mechanism having a rail capable of changing a posture between a closed posture close to the feed chain and an open posture spaced upward from the feed chain so as to guide the grain stem conveyed by the feed chain from above;
a rail posture detection unit for detecting an open posture of the rail mechanism;
an engine driving management unit for prohibiting driving of the engine under the condition of detection of the open posture by the rail posture detecting unit;
A clutch for inputting and blocking power from the engine to the threshing device is provided,
The engine driving management unit combines the input state of the clutch as an additional condition to prohibit driving of the engine. delete The combine according to claim 1, wherein, when the open attitude is detected by the rail attitude detection unit before starting of the engine, the engine driving management unit prohibits starting of the engine. The combine according to claim 1 or 3, wherein the engine drive management unit stops the engine when the open posture is detected by the rail posture detection unit while the engine is being driven. The rail opening detection switch according to claim 1 or 3, wherein a normally closed rail open detection switch is provided that closes the contact point when the rail mechanism is closed and opens the contact point when the rail mechanism is in the open position, wherein the rail attitude detection unit , The combine configured to detect the open posture of the rail mechanism by a current flowing through the rail opening detection switch. The combine according to claim 1 or 3, wherein a manual operation tool for manually changing the posture of the rail mechanism and a rail opening operation switch for electrically driving the posture change of the rail mechanism are provided. delete delete delete delete delete delete delete

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