JPH09103184A - Grain unloader for harvester-thresher combine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the operability for positioning a transversely grain-feeding screw conveyer in the housing position in its shrunk state. SOLUTION: A transversely grain-feeding conveyer is set above the longitudinal screw conveyor so that it may freely rise and fall around the transverse shaft core by the actuation of the rise and fall driving mechanism, and the transversely feeding screw conveyer may be shrunk and extended in the feeding direction by the actuation of the shrinking and extending mechanism 12. In this grain unloader, when the transverse screw conveyer is at the housing position, a controlling means 26 is set to control the actuation of the shrinking and extending mechanism 12 so that transverse conveyer may turns to the shrunk state.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vertical feed screw conveyor having a horizontal feed screw conveyor which is movable up and down around a horizontal axis core by the operation of an undulation drive mechanism and by a turning drive mechanism. The present invention relates to a combine grain discharging device that is equipped so as to be swingable about a vertical axis and is configured to be capable of expanding and contracting in the feeding direction by the operation of an expanding / contracting drive mechanism of the laterally feeding screw conveyor. .

[0002]

2. Description of the Related Art As a combine grain discharging device as described above, for example, as disclosed in Japanese Patent Application Laid-Open Nos. 2-120134 and 2-195820, the above structure has Only the operation of the traverse screw conveyor without moving the machine is required to properly adjust the grain discharge port provided at the tip of the traverse screw conveyor with respect to the collection point (for example, truck bed) in the perspective direction. When the separation distance between the aircraft and the grain collection point becomes longer due to the presence of relatively high ridges or ridges and water between the field and the grain collection point However, by extending the horizontal feed screw conveyor so that the tip end thereof protrudes largely outside the machine body, the grain from the field to the grain collection point can be obtained. There are things you have to allow the exit.

By the way, conventionally, in the grain discharging apparatus for these combine harvesters, the switching of the horizontal feed screw conveyor to the contracted state is performed by an operation different from the operation for positioning the horizontal feed screw conveyor at the storage position. Was configured as.

[0004]

That is, according to the above-mentioned prior art, the switching of the horizontal feed screw conveyor to the contracted state is performed by an operation different from the operation for positioning the horizontal feed screw conveyor in the storage position. Therefore, the horizontal feed screw conveyor may be located at the storage position in the extended state. However,
When the horizontal feed screw conveyor is in the storage position, it is the combine's running posture.Therefore, when the horizontal feed screw conveyor is in the extended position and is in the storage position, it is in the extended state. There is a risk that the tip of the horizontal feed screw conveyor that protrudes in one direction may come into contact with other objects when traveling and damage the horizontal feed screw conveyor or the contact object, and to avoid it, be careful when traveling. It will be necessary to raise Moreover, when the lateral feed screw conveyor is greatly extended, the weight balance may be deteriorated and the running stability may be hindered. Therefore, when positioning the horizontal feed screw conveyor in the storage position, it is desirable to switch the horizontal feed screw conveyor to the contracted state. When the horizontal feed screw conveyor is moved to the storage position, the horizontal feed screw conveyor is rotated and moved up and down to the storage position because the horizontal feed screw conveyor is moved to the storage position. Also, since each of the switching operation of the horizontal feed screw conveyor to the contracted state must be manually performed according to the procedure, the operation for positioning the horizontal feed screw conveyor in the retracted state in the retracted position is troublesome. Was becoming.

Incidentally, in a combine grain discharging apparatus in which the horizontal feed screw conveyor is not configured to be expandable / contractible in the feeding direction, for example, Japanese Unexamined Patent Publication No.
As disclosed in Japanese Patent Publication No. 137451, etc., the operation of the swing drive mechanism and the undulation drive mechanism is controlled so that the transverse feed screw conveyor is automatically positioned at the storage position based on the storage command from the command means. There is a control means for improving the operability when the horizontal feed screw conveyor is located at the storage position. It may be possible to equip the device, but even in this configuration, switching of the horizontal feed screw conveyor to the contracted state must be performed by a manual operation other than the command operation for positioning the horizontal feed screw conveyor in the retracted position. Therefore, the technical problems in the above-mentioned conventional techniques cannot be solved.

It is an object of the present invention to provide a operability for locating the lateral feed screw conveyor in the retracted position in the retracted position while the lateral feed screw conveyor is configured to be extendable / contractible in its feeding direction. As a result, it is possible to improve the stability of the horizontal feed screw conveyor when it travels with the horizontal feed screw conveyor in the stowed position, and to prevent it from coming into contact with other objects due to the protrusion of the horizontal feed screw conveyor to the outside of the machine. It is an object of the present invention to provide a combine grain discharging device capable of eliminating the deterioration of sex.

[0007]

In order to achieve the above object, in the invention according to claim 1 of the present invention, a horizontal feed screw conveyor is provided above the vertical feed screw conveyor, and a horizontal feed screw conveyer is operated by an undulating drive mechanism. It is undulating and swingable around an axis, and is equipped so as to be swingable and swingable around a vertical axis by the operation of a turning drive mechanism, and the horizontal feed screw conveyor is operated by an extension and contraction drive mechanism. In the grain discharging device of the combine configured to be expandable and contractible in the feeding direction, in a state in which the horizontal feed screw conveyor is located at the storage position, the horizontal feed screw conveyor is in a contracted state, Equipped with control means to control the operation.

According to the first aspect of the present invention, when the transverse feed screw conveyor is positioned at the storage position, the transverse feed screw conveyor is automatically contracted by the operation of the expansion and contraction drive mechanism based on the control operation of the control means. You will be able to switch to the state. In other words, when the horizontal feed screw conveyor is located at the storage position, it is not necessary to manually perform the switching operation to the contraction state of the horizontal feed screw conveyor, so the horizontal feed screw conveyor is located at the storage position in the contracted state. It is possible to reduce the complexity of the operation and to avoid neglecting or forgetting the switching operation of the horizontal feed screw conveyor to the contracted state, and thereby to position the horizontal feed screw conveyor in the retracted position in the retracted position. Therefore, in the traveling posture of the combine, in which the horizontal feed screw conveyor is located at the storage position, the horizontal feed screw conveyor does not project to the outside of the machine body.

Therefore, since the lateral feed screw conveyor is configured to be extendable / contractible in the feed direction, proper alignment of the grain discharge port with respect to the grain collection point in the perspective direction can be easily performed. While having the advantages such as, it is possible to improve the operability and reliability for positioning the horizontal feed screw conveyor in the retracted position in the retracted position, and by doing so, the horizontal feed screw conveyor can be stored in the retracted position. It has become possible to eliminate the risk of contact with other objects and the decrease in stability due to the lateral feed screw conveyor protruding outward from the machine body when traveling in the state of being positioned at. In other words, operability for locating the horizontal feed screw conveyor in the retracted position and the contact between the horizontal feed screw conveyor and other objects during traveling in the state where the horizontal feed screw conveyor is in the storage position It has become possible to provide a combine grain discharging device which is excellent in damage prevention and stability.

By the way, as a method of controlling the operation of the expansion / contraction drive mechanism so that the horizontal feed screw conveyor is in the contracted state when the horizontal feed screw conveyor is in the storage position, the control means may be, for example, a horizontal feed screw conveyor. Is provided with a sensor for detecting that it is located in the storage position, and based on the detection of the sensor, the control means automatically operates the expansion and contraction drive mechanism so that the transverse feed screw conveyor is switched to the contracted state. In addition to the method of configuring to control, and to the control means, equipped with a command means for outputting a storage command for automatically positioning the horizontal feed screw conveyor to the storage position, and to the storage command from the command means Based on this, the control means automatically positions the transverse feed screw conveyor in the retracted position and cuts it into the contracted state. As Waru, swing drive mechanism, undulating driving mechanism, and, there is a method configured to control the operation of the telescopic drive mechanism. The former is advantageous in simplifying the control structure and reducing the manufacturing cost. In addition, the latter can further improve the operability, and if the horizontal feed screw conveyor is configured to perform the operations of turning, undulation and expansion / contraction at the same time or substantially at the same time, the horizontal feed screw conveyor contracts. It is also possible to shorten the operation time for positioning the storage position in the state.

In the invention according to claim 2 of the present invention,
In addition to the invention according to claim 1, a command means for outputting a storage command for automatically positioning the lateral feed screw conveyor to the storage position is provided, and the command means stores the command. When a command is output, based on the command, the transverse feed screw conveyor is switched to a contracted state by the operation of the expansion and contraction drive mechanism, and then swung to a position right above the storage position by the operation of the swivel drive mechanism. After that, the control means is configured to be positioned at the storage position by the operation of the undulation drive mechanism.

According to the second aspect of the present invention, in the lateral feed screw conveyor, when the lateral feed screw conveyor is positioned at the storage position, the turning and undulating operations are performed after the switching operation to the contracted state is performed. Therefore, compared with the one that performs the turning and hoisting operations in the extended state, the load applied to the turning drive mechanism and the hoisting drive mechanism during the turning and hoisting operations, and the lateral feed screw conveyor contacts other objects. It becomes possible to reduce the risk of That is, by reducing the load on the swing drive mechanism and the undulation drive mechanism, the durability of the slew drive mechanism and the undulation drive mechanism is improved, and the operation time for positioning the horizontal feed screw conveyor in the retracted state at the storage position is shortened. Can be realized. Further, by reducing the risk of contact between the horizontal feed screw conveyor and other objects, it is possible to suppress the risk of damage to the horizontal feed screw conveyor or the like due to the contact.

Therefore, the durability of the swing drive mechanism and the undulation drive mechanism is improved, the operation time required for the storing operation of the horizontal feed screw conveyor is shortened, and the horizontal feed screw conveyor is used during the turning and undulating operations of the horizontal feed screw conveyor. It is now possible to further avoid damage such as.

[0014]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows the entire side surface of the self-removing combine,
FIG. 2 shows an overall plan view of the self-removable combine. The combine is composed of a traveling machine body 2 having a pair of right and left crawler traveling devices 1 and a cutting unit 3 mounted on a front portion of the traveling machine body 2. A threshing device 4 for threshing the grain stalks cut by the cutting unit 3 to selectively collect the grains, a Glen tank 5 for storing the grains selectively collected by the threshing device 4, and a grain tank 5 for storing the grains. It is constituted by a grain discharging device 6 and the like for discharging the obtained grains to a grain collecting point such as a loading platform Ta of the truck T.

As shown in FIGS. 1 to 6, the grain discharging device 6
Is a bottom screw conveyor 7 arranged along the front-rear direction at the bottom of the Glen tank 5, a vertical feed screw conveyor 8 extending upward from the transport end of the bottom screw conveyor 7, and a vertical feed screw conveyor 8 A horizontal feed screw conveyor 9 and a horizontal feed screw, which are provided on the upper part of the table so as to be able to swing up and down around a horizontal axis X and to swing around a vertical axis Y and to be expandable and contractible in the feed direction. An undulation drive mechanism 1 for undulating the conveyor 9 around the horizontal axis X with respect to the vertical feed screw conveyor 8.
0, the horizontal feed screw conveyor 9 is configured to include a rotary drive mechanism 11 that pivotally drives the vertical feed screw conveyor 8 around the vertical axis Y, and a telescopic drive mechanism 12 that telescopically drives the horizontal feed screw conveyor 9. There is. The bottom screw conveyor 7 extends so that the end on the transport start end side is exposed to the front side of the Glen tank 5, and power from an engine (not shown) is transmitted to the extension end. The input pulley 13 is mounted. The vertical feed screw conveyor 8 is composed of a conveyor main body 14 and a conveyor case 15 surrounding the conveyor main body 14, and the conveyor main body 14 is interlockingly connected to the bottom screw conveyor 7 via a bevel gear type interlocking mechanism (not shown). Has been done. The horizontal feed screw conveyor 9 is connected to the first screw conveyor portion 9A which is connected to the vertical feed screw conveyor 8 and is slidably connected to the first screw conveyor portion 9A below the first screw conveyor portion 9A. And a second screw conveyor section 9B. The first screw conveyor section 9A and the second screw conveyor section 9B are respectively constituted by conveyor main bodies 16 and 17, and conveyor cases 18 and 19 surrounding the conveyor main bodies 16 and 17, respectively. In the first screw conveyor section 9A, the conveyor body 16 is interlockingly connected to the vertical feed screw conveyor 8 via a bevel gear type interlocking mechanism (not shown), and the conveyor case 18 is longitudinal feed screw conveyor via a connection case 20. It is connected to eight conveyor cases 15. That is, the bottom screw conveyor 7, the vertical feed screw conveyor 8, and the first screw conveyor portion 9A of the horizontal feed screw conveyor 9 are driven by the power from the engine.

As shown in FIG. 3 and FIG. 4, the undulation drive mechanism 10 includes a connecting case 20 and a conveyance start end portion of the first screw conveyor portion 9A of the lateral feed screw conveyor 9.
An operation of an ascending switch 24 or a descending switch 25 provided in the control unit 23, which is composed of a hydraulic cylinder 21 that is installed over the hydraulic cylinder 21 and an electromagnetic control valve 22 that switches the flow state of hydraulic oil to the hydraulic cylinder 21. Thus, by manually issuing an ascending or descending command to the control device 26 mounted on the traveling machine body 2, it is possible to manually perform the hoisting operation of the lateral feed screw conveyor 9 to a desired height. The turning drive mechanism 11 includes a turning gear 20 a formed in the connection case 20, a pinion 27 that meshes with the turning gear 20 a, and a pinion 2.
7 is driven by an electric motor 28 fixed to the conveyor case 15 of the vertical feed screw conveyor 8, and is controlled by operating a left turn switch 29 or a right turn switch 30 provided in the control section 23. By instructing the device 26 to turn left or turn right, a manual turning operation of the lateral feed screw conveyor 9 to a desired position can be performed.

As shown in FIGS. 4 to 6, the extension / contraction drive mechanism 1
Reference numeral 2 denotes a rack 31 and a rack 3, which are mounted on the bottom of the conveyor case 18 in the first screw conveyor section 9A of the horizontal feed screw conveyor 9 along the grain conveying direction.
1 and an electric motor 33 fixed to the rear end of the conveyor case 19 in the second screw conveyor section 9B of the transverse feed screw conveyor 9 so as to drive the pinion 32. By operating the extension switch 34 or the contraction switch 35 provided in the section 23, by issuing an extension or contraction command to the control device 26, it is possible to manually extend or retract the lateral feed screw conveyor 9 to a desired position. It has become.

The configuration of the lateral feed screw conveyor 9 will be described in detail. As shown in FIGS. 5 and 6, the conveyor case 18 of the first screw conveyor portion 9A is provided with a support formed in an oval cylindrical shape in a front view. While the case 52 is mounted, the conveyor case 18 has a transport end lower part,
The grain supply cylinder portion 18a extending toward the second screw conveyor portion 9B arranged below the integral portion is integrally formed. Convex slide rails 19A that slidably engage with concave slide grooves 52A formed on the lower left and right sides of the support case 52 are formed on both left and right sides of the conveyor case 19 in the second screw conveyor section 9B. In addition, the grain supply cylinder portion 18a is provided on the upper surface of the conveyor case 19 in a state where the second screw conveyor portion 9B is allowed to slide with respect to the grain supply cylinder portion 18a of the first screw conveyor portion 9A. A slit 19a communicating with the screw conveyor section 9B is formed along the transport direction. Further, on the upper part of the conveyor case 19 in the second screw conveyor section 9B, a plurality of sliding plates 36A extend from the grain supply cylinder section 18a in the first screw conveyor section 9A to the conveyance end of the second screw conveyor section 9B. The slit body 19 is equipped with a cover body 36 configured to cover the slit 19a while expanding and contracting with the sliding movement of the second screw conveyor portion 9B with respect to the first screw conveyor portion 9A. Second screw conveyor section 9B in the state
It is possible to prevent the grain from overflowing from the slit 19a. Reference numeral 36a in the drawing is an engagement stopper that prevents the sliding plates 36A from coming off from each other in the extended state. A grain discharge port 19b for discharging grains to the outside is formed at the lower end of the conveyor case 19 in the second screw conveyor section 9B. The conveyor main body 17 of the second screw conveyor section 9B is the conveyor case 1
It is adapted to be driven by an electric motor 37 provided at the conveyance start end portion of No. 9. As shown in FIG. 4, the electric motor 37 is controlled by the control device 26 based on the detection information from the grain detection sensor 38, which is a pressure switch provided at the conveyance end of the first screw conveyor 9A. The operating state can be switched.

As shown in FIGS. 1 and 2, the traveling machine body 2
Is equipped with a catch 39 that receives and supports the lateral feed screw conveyor 9 at the storage position P. As shown in FIGS. 3 and 4, the hydraulic cylinder 21 of the up-and-down drive mechanism 10 is equipped with a stroke sensor 40 which is a slide type potentiometer that detects the expansion / contraction operation amount of the hydraulic cylinder 21 and outputs it to the control device 26. Therefore, the control device 26 is configured to calculate the undulating operation angle of the lateral feed screw conveyor 9 based on the detection information from the stroke sensor 40. At the terminal end of the vertical feed screw conveyor 8, the pinion 2 of the turning drive mechanism 11 is provided.
7 through the detection pinion 41 meshing with the electric motor 28
Is equipped with a rotation sensor 42 composed of a rotary potentiometer that detects the number of rotations of the horizontal feed screw conveyor 9 based on detection information from the rotation sensor 42. It is configured to calculate a turning operation angle. As shown in FIGS. 4 and 5, the second screw is provided below the conveyance start end of the first screw conveyor section 9A in the lateral feed screw conveyor 9 as the second screw conveyor section 9B reaches the contraction limit position. A contraction limit detection sensor 44, which is a limit switch that is turned on by the first operation arm 43 provided at the conveyance start end of the conveyor section 9B and outputs an on signal to the control device 26, is provided.
The grain supply cylinder portion 18a of the first screw conveyor portion 9A in the lateral feed screw conveyor 9 is attached to the conveyance start end portion of the second screw conveyor portion 9B as the second screw conveyor portion 9B reaches the extension limit position. The extension limit detection sensor 46, which is a limit switch that is turned on by the equipped second operation arm 45 and outputs an on signal to the control device 26, is provided. The control unit 23 is automatically operated as a command unit configured to output a storage command for automatically positioning the lateral feed screw conveyor 9 to the storage position P to the control device 26 by being pressed. A storage switch 47 is provided. Then, the control device 26 controls the automatic storage switch 4
When the storage command is output from 7, based on the command,
Each drive mechanism 10, 11, 1 is arranged so that the lateral feed screw conveyor 9 is positioned at the retracted position in a contracted state in which the second screw conveyor section 9B is contracted to the contraction limit position.
2 is configured to control operation. That is, the control device 26 functions as a control unit that controls the operation of the extension / contraction drive mechanism 12 so that the horizontal feed screw conveyor 9 is in the contracted state when the horizontal feed screw conveyor 9 is located at the storage position P. Has become.

The control operation of the control device 26 based on the storage command from the automatic storage switch 47 will be described in detail. When the storage command is output from the automatic storage switch 47, the control device 26 firstly operates on the basis of the command. The extension drive mechanism 12 is operated so that the second screw conveyor portion 9B of the lateral feed screw conveyor 9 is in a contracted state in which the second screw conveyor portion 9B is contracted to the contraction limit position. When the contraction limit detection sensor 44 detects that the second screw conveyor section 9B has reached the contraction limit position during the operation of the expansion and contraction drive mechanism 12, the operation of the expansion and contraction drive mechanism 12 is stopped and the lateral feed screw conveyor 9 is operated. The up-and-down drive mechanism 10 is operated so as to have a predetermined upright posture. When the up-down drive mechanism 10 is operated, the up-down operation angle of the traverse screw conveyor 9 is sequentially calculated based on the detection information from the stroke sensor 40, and the up-down operation angle of the traverse screw conveyor 9 and the up-down operation in a predetermined upright posture are performed. Compare with the corner. When the undulating operation angle of the horizontal screw conveyor 9 coincides with the undulating angle in the predetermined upright posture, the operation of the undulating drive mechanism 10 is stopped, and the horizontal screw conveyor 9 is positioned directly above the storage position P. Then, the turning drive mechanism 11 is operated. When the turning drive mechanism 11 is operated, the turning operation angle of the traverse screw conveyor 9 is sequentially calculated based on the detection information from the rotation sensor 42, and the turning operation angle of the traverse screw conveyor 9 and the turning at the storage position P. Compare with the corner. When the turning operation angle of the lateral feed screw conveyor 9 and the turning angle at the storage position P match, the turning drive mechanism 11
1 is stopped, and the up-and-down drive mechanism 10 is operated again so that the lateral feed screw conveyor 9 is received and supported by the receiving member 39 arranged at the storage position P.
When the hoisting drive mechanism 10 is restarted, the hoisting operation angle of the lateral feed screw conveyor 9 is sequentially calculated based on the detection information from the stroke sensor 40, and the hoisting operation angle of the lateral feed screw conveyor 9 and the catching tool are received. The storage angle of the lateral feed screw conveyor 9 set so as to be received and supported by 39 is compared. And
When the undulation operation angle of the lateral feed screw conveyor 9 matches the storage angle, the operation of the undulation drive mechanism 10 is stopped, and the control operation based on the storage command from the automatic storage switch 47 is completed.

In other words, when the horizontal feed screw conveyor 9 is positioned at the storage position P, the automatic feed switch 47 is simply operated, and the horizontal feed screw conveyor 9 is manually lifted, swung, and expanded and contracted. No hassle,
It becomes possible to automatically position the lateral feed screw conveyor 9 in the retracted position at the storage position P. Further, since the lateral feed screw conveyor 9 is not located in the storage position P in the extended state by neglecting or forgetting the switching operation to the contracted state of the lateral feed screw conveyor 9, In the traveling posture of the combine in the storage position P, the lateral feed screw conveyor 9 does not project to the outside of the machine.

Therefore, the lateral feed screw conveyor 9 is
By being configured to be extendable / contractible in the feeding direction, for example, the machine body is moved for proper alignment in the perspective direction of the grain discharge port 19b with respect to the grain collection point such as the loading platform Ta of the truck T. In addition to having the advantage that it can be easily done without the hassle, it is possible to improve the operability and reliability for positioning the lateral feed screw conveyor 9 in the retracted position P in the contracted state, and thereby, lateral feed It is possible to eliminate the risk of contact with other objects and the deterioration of stability due to the lateral feed screw conveyor 9 protruding outside the machine body when traveling with the screw conveyor 9 in the storage position P.

Moreover, when the horizontal feed screw conveyor 9 is positioned at the storage position P, the control device 26 performs the operation of switching the horizontal feed screw conveyor 9 to the contracted state, and then raises and lowers the horizontal feed screw conveyor 9. Since it is configured to perform the slewing operation and the slewing operation, as compared with the swaying and slewing operation of the lateral feed screw conveyor 9 in the extended state, the undulation driving mechanism during the undulation and the slewing operation of the lateral feed screw conveyor 9. It is possible to reduce the load applied to the rotary drive mechanism 11 and the turning drive mechanism 11 and the risk of the lateral feed screw conveyor 9 coming into contact with another object. That is, the undulation drive mechanism 10 and the swing drive mechanism 11
By reducing the load on the swelling drive mechanism, it is possible to improve the durability of the up-and-down drive mechanism 10 and the swing drive mechanism 11, and to shorten the operation time for positioning the horizontal feed screw conveyor 9 in the retracted position P at the storage position P. Moreover, since the risk of contact between the lateral feed screw conveyor 9 and other objects during the undulation and turning operations is reduced, the risk of damage to the lateral feed screw conveyor 9 and the like due to it can be further suppressed.

As shown in FIG. 1, FIG. 2 and FIG. 4, at the end of the second screw conveyor section 9B of the horizontal feed screw conveyor 9, the output from the guiding device 48 arranged near the loading platform Ta of the truck T is output. The control unit 26 is equipped with a receiver 49 that receives the electromagnetic induction wave and outputs the received information to the control unit 26. The control unit 26 presses the discharge movement switch 50 equipped in the control unit 23. Then, based on the information received from the receiver 49, the undulation drive mechanism 1 is arranged so that the grain discharge port 19b of the lateral feed screw conveyor 9 faces the loading platform Ta of the truck T.
0, the swing drive mechanism 11, and the expansion / contraction drive mechanism 12 are controlled to operate. In other words, when performing the grain discharging operation, only by pressing the discharge moving switch 50, the operation of manually raising, lowering, turning, and expanding and contracting the horizontal feed screw conveyor 9 can be performed without any trouble of performing the respective operations. The proper positioning of the grain discharge port 19b of the horizontal feed screw conveyor 9 with respect to the loading platform Ta of the truck T can be automatically performed, and the positioning operation of the horizontal feed screw conveyor 9 with respect to the grain collection point is simplified. Is being planned.

By the way, the lateral feed screw conveyor 9 is controlled by the control device 26 when the lateral feed screw conveyor 9 is aligned with the grain collecting position.
The operation procedure of the horizontal feed screw conveyor 9 is such that the horizontal feed screw conveyor 9 is directed toward the grain collection point.
After the undulation and turning operation of the horizontal feed screw conveyor 9 is performed, the load on the undulation drive mechanism 10 and the turning drive mechanism 11 is reduced, and the undulation and turning of the horizontal feed screw conveyor 9 is performed. It may be possible to reduce the risk of contact between the lateral feed screw conveyor 9 and other objects during operation, and the operations of undulation, turning, and extension of the lateral feed screw conveyor 9 may be performed simultaneously or substantially at the same time. Thus, the operation time may be shortened.

During the control operation based on the command from the automatic storage switch 47 or the discharge movement switch 50, the control device 26 raises the raising switch 24, the lowering switch 25,
Even if the left turn switch 29, the right turn switch 30, the extension switch 34, and the contraction switch 35 are operated, the control operation based on the command from them is not performed. The erroneous operation of the down switch 25, the left turning switch 29, the right turning switch 30, the extension switch 34, and the contraction switch 35 due to erroneous operation is prevented. As shown in FIG. 4, the control unit 23 has an emergency stop switch 51 for urgently stopping the control operation of the control device 26 based on a command from the automatic storage switch 47 or the discharge movement switch 50.
If the risk of contact between the lateral feed screw conveyor 9 and another object suddenly occurs during control operation based on a command from the automatic storage switch 47 or the discharge movement switch 50, this emergency stop is performed. It can be avoided by pressing the switch 51.

[Other Embodiments] Other embodiments of the present invention will be listed below. In the above-described embodiment, the present invention is applied to the self-removing combine, but the present invention is of the all-cullet throwing type as long as it includes the lateral feed screw conveyor 9 configured to be extendable and contractible. It can also be applied to combine harvesters. In the above-described embodiment, when the storage means is output from the command means 47, the control means 26 first performs a switching operation to the contracted state of the horizontal feed screw conveyor 9 based on the storage instruction, and then the undulation or Although the turning operation is performed, the operations of contracting, undulating and turning the lateral feed screw conveyor 9 may be performed simultaneously or substantially at the same time. With this configuration, the operation time of the horizontal feed screw conveyor 9 can be shortened. A sensor for detecting that the lateral feed screw conveyor 9 is located at the storage position P is provided, and based on the detection of this sensor, the extension / contraction drive mechanism 12 operates so that the lateral feed screw conveyor 9 switches to the contracted state. The control means 26 may be configured to control the. That is, the up-and-down operation and the turning operation of the horizontal feed screw conveyor 9 to the storage position P are manually performed, and only the contraction operation of the horizontal feed screw conveyor 9 can be automatically performed. The simplification and the manufacturing cost can be reduced.

In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration of the attached drawings.

[Brief description of the drawings]

FIG. 1 is an overall side view of a self-contained combine.

FIG. 2 is an overall plan view of a self-removing combine showing a state of discharging grains.

FIG. 3 is a side view of a main part of the grain discharging device, showing a configuration of an up / down driving mechanism and a turning driving mechanism.

FIG. 4 is a block diagram showing a control configuration.

FIG. 5 is a vertical sectional side view showing the configuration of a horizontal feed screw conveyor.

FIG. 6 is a vertical sectional front view showing the configuration of a horizontal feed screw conveyor.

[Explanation of symbols]

 8 Vertical Feed Screw Conveyor 9 Horizontal Feed Screw Conveyor 10 Lifting Drive Mechanism 11 Swiveling Drive Mechanism 12 Extension Drive Mechanism 26 Control Means 47 Command Means P Storage Position X Horizontal Axis Y Y Vertical Axis

Claims (2)

[Claims] 1. A horizontal feed screw conveyor (9) is provided above the vertical feed screw conveyor (8) so as to be able to swing up and down around a horizontal axis (X) by an operation of an up-and-down drive mechanism (10), and The turning drive mechanism (11) is provided so as to be able to turn and swing around the vertical axis (Y), and the lateral feed screw conveyor (9) is moved by the operation of the telescopic drive mechanism (12). A combine grain discharging device configured to be expandable and contractable in a feeding direction, wherein the lateral feed screw conveyor (9) is at a storage position (P).
The horizontal feed screw conveyor (9) in the contracted state, the telescopic drive mechanism (1
A combine grain discharging apparatus equipped with a control means (26) for controlling the operation of 2). 2. A command means (47) for outputting a storage command to the control means (26) for automatically positioning the lateral feed screw conveyor (9) at the storage position (P) is provided. When a storage command is output from the command means (47), the lateral feed screw conveyor (9) is based on the command.
Is switched to a contracted state by the operation of the expansion and contraction drive mechanism (12), and then is swung to a position just above the storage position (P) by the operation of the swivel drive mechanism (11), and thereafter,
2. The combine grain discharging apparatus according to claim 1, wherein the control means (26) is configured so as to be positioned at the storage position (P) by the operation of the undulation drive mechanism (10).