JP2001224238A - Unloading auger for combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the operabilities of an exhaustion auger and an exhaustion outlet. SOLUTION: An exhaustion outlet-rotation base 36 is set to the top end of the exhaustion auger 15, the exhaustion outlet 25 is rotatably mounted to the base 36 and a remote operation box 56 that operates the revolution of the auger 15 and the rotation of the exhaustion outlet 25 is arranged near a pivoting shaft 35 for rotating the outlet 25. In adddition, the exhaustion outlet- rotation base 36 is also used as an upper cover for covering rotation units, for example, a motor 45 and gears 49, 50, and the like, for rotating the exhaustion outlet 25. The rotation units are arranged in the remote operation box 56. In another embodiment, the rotation units are arranged in a cover (cover box 68) and this cover is arranged near the pivoting shaft 35 for rotating at an outer face of the exhaustion outlet 25. In addition, sensors are set to suitable positions, for example, the outlet 25, the exhaustion auger 15, and the like, and the angle of the outlet 25 to the ground is measured by the sensors and the machine is controlled so that the auger 15 may not be driven, when the angle of the outlet 15 is below a prescribed value.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a discharge port rotatably mounted at the tip of a discharge auger of a combine and a technique of drive control.

[0002]

2. Description of the Related Art In general, a combiner projects a cutting section forward from a traveling device, and conveys grain stalks cut by the cutting section to the rear to supply it to a threshing section. Then, threshing is performed by the rotation of the handling cylinder, and the culms after threshing are discharged to the field scene behind the aircraft. Grains, straw debris, trash, etc. that have leaked through the crimping net in the threshing section are sorted by a sorting device arranged below the threshing section, and the fine grains are temporarily stored in a grain tank arranged above the threshing section and discharged. They are shipped offboard by the auger. Conventionally, the discharge auger is provided rotatably above a grain tank, and a discharge port is fixed to the tip of the discharge auger. In addition, the turning operation of the discharge auger is performed by a remote control device integrally attached to the discharge port, and the granules stored in the grain tank are transshipped to a truck bed or the like.

[0003]

However, in the discharge auger, if there is a bank or a waterway between the field and the road, the discharge port becomes difficult to reach and cannot be inserted.
It was loaded unevenly. Accordingly, a technique for rotating the discharge port in the front-rear direction has been filed by the same applicant, but the mounting with a remote control box for operating the discharge port and the discharge auger is complicated, and the discharge is difficult. During the operation, the outlet was rotated too much and became almost horizontal, and the outlet was sometimes clogged.

[0004]

The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described. That is, in a combine for taking out grains in a grain tank by a discharge auger, a discharge base is provided at a tip of the discharge auger so as to be rotatably mounted, and operation of the discharge auger and the discharge port is performed. The remote control device for performing the above operation is disposed on the discharge auger side near the rotation fulcrum shaft of the discharge port.

Further, the actuator and the transmission mechanism for rotating the discharge port are covered with a cover for covering a rotation base of the discharge port.

According to a third aspect of the present invention, an actuator for rotating the discharge port and a transmission mechanism are disposed in a cover that houses the remote control device.

According to a fourth aspect of the present invention, an actuator and a transmission mechanism for rotating the discharge port are disposed in the cover, and the cover is disposed near the rotation fulcrum shaft on the outer surface of the discharge port.

According to a fifth aspect of the present invention, in a combine for taking out grains in a grain tank by a discharge auger, a discharge port is rotatably arranged at a tip of the discharge auger,
An angle sensor and a rotation actuator are provided at the rotation base of the discharge port, and the angle sensor, the rotation actuator, and the discharge auger drive connecting / disconnecting means are connected to the control means. Was controlled to stop driving

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The problems to be solved and the configuration of the present invention are as described above, and an embodiment of the present invention shown in the accompanying drawings will be described below. Figure 1 is an overall side view of the combine,
FIG. 2 is a plan view of the same, FIG. 3 is a plan view of a grain tank portion, FIG. 4 is an explanatory view of a vertical feed auger portion, FIG. 5 is a front sectional view of a discharge port according to the first embodiment of the present invention, and FIG. Similarly, FIG. 7 is a left side view, FIG. 8 is an explanatory view showing a ground angle of the discharge port, FIG. 9 is an explanatory view showing a rotation angle of the discharge port when the discharge auger is forcibly stopped, and FIG. FIG. 11 is a flowchart illustrating control for forcibly stopping the discharge auger, and FIG. 11 is a flowchart illustrating another control for forcibly stopping the discharge auger.
2 is a front sectional view of an outlet according to a second embodiment of the present invention, FIG. 13 is a left side sectional view thereof, FIG. 14 is a front sectional view of an outlet according to a third embodiment of the present invention, and FIG. It is a right side view.

First, the overall structure of the combine will be described. As shown in FIGS. 1 and 2, the combine has a configuration in which an airframe is supported on a traveling crawler 2.
Is mounted on the track frame 1, and the track frame 1
The machine base 3 is erected above. A sorting unit is disposed on the machine base 3, and a threshing unit 4 is disposed thereon. The threshing unit 4 includes a feed chain 5, a handling cylinder 6, a processing cylinder 7, and the like. The feed chain 5 is stretched on the left side of the machine body.
On the right side, the handling cylinder 6 and the processing cylinder 7 are arranged side by side in the order of the body in the longitudinal direction of the machine. A threshing cylinder 14 is erected from the threshing unit 4, and a grain tank 13 is disposed on the threshing unit 4. It is transported inside. Further, a vertical feed auger 24 is erected from the rear of the grain tank 13, and a discharge auger 15 is extended from an upper portion of the vertical feed auger 24 toward the front of the fuselage, so that the grains in the grain tank 13 are removed. It is carried out of the machine by the vertical feed auger 24 and the discharge auger 15.

A cutting section 8 is provided at the front end of the machine, the cutting section 8 includes a cutting blade 9 and a grain culm transport mechanism 10 and the like, and a straw processing section 11 is provided at the rear of the machine. The straw processing unit 11 incorporates a straw chain 12. An operating cabin 16 is provided on the right side of the front of the fuselage. An operating section 17, a driver's seat 18 and the like are provided in the operating cabin 16, and an engine 19 is provided below the operating cabin 16. It is.

Next, an embodiment (first embodiment) of the discharge port 25 of the discharge auger 15 according to the present invention will be described.
As shown in FIG.
The lower end is linked and connected to the first conveyor 22 of the threshing unit 4 via the relay conveyor 21, and the grains threshed in the threshing unit 4 are charged and stored in the grain tank 13 via the toothpick conveyor 20 while discharging. Sometimes, the grain tank 1 is provided by a front-rear bottom transverse feed auger 23 provided at the bottom of the grain tank 13.
3 After the grain at the bottom of the inner side is fed horizontally to the rear, transferred to the vertical feed auger 24 and conveyed to a position above the tank 13, transferred to the discharge auger 15 and discharged from the discharge port 25 (see FIG. 1) at the tip. It is configured to take out grain.

An auger clutch 26 is interposed as a discharge auger drive connecting / disconnecting means at the front end of the rotating shaft of the bottom transverse feed auger 23, and the auger clutch 26 is connected to a control means as an electromagnetic clutch to supply power from the engine 19. Each of the augers 15, 23, and 24 can be driven and stopped so that the connection and disconnection are possible.

As shown in FIG. 4, the discharge auger 15 is provided so as to be pivotable in a horizontal direction about a rear portion.
A hydraulic lifting cylinder 27 is provided as a means for raising and lowering the front end portion around the rear base portion of the discharge auger 15, and the discharge auger 15 base is turned up and down around the rotation fulcrum shaft 90 at the upper end of the vertical feed auger 24. The upper half of the vertical auger 24 is connected to a pair of gears 28
An electric turning motor 30 is provided for rotating around the axis through an axis, and the upper half of the vertical feed auger 24 and the discharge auger 15 are integrally rotated about a substantially vertical axis of the vertical feed auger 24. Discharge auger 15
The discharge port 25 at the tip of the discharge auger 15 is turned left and right by the control of the turning motor 30 while raising and lowering the discharge port 25 at the tip (see FIG. 1).

As shown in FIG. 5 to FIG.
Reference numeral 5 denotes a discharge port cover 53 having a substantially inverted L shape in a side view, which is rotatably attached to the lower side of the tip of the auger cylinder 34 of the discharge auger 15 via a horizontal rotation fulcrum shaft 35, and the outer periphery of the discharge port cover 53. And a discharge cylinder 38 formed of a vertically long cylindrical body having a substantially quadrangular cross section which is detachably fixed via a bolt 37, and as shown in FIG. 7, the discharge cylinder 38 is made of one piece of rubber, synthetic resin, or the like. It is bent in the shape of a square tube, and the overlapped portions at both ends are fixed or welded by fastening members 39 such as screws or rivets. Then, as shown in FIG. 6, a pair of left and right spring steels (round bars,
A steel wire body 40 made of, for example, a piano wire) is extended, the upper end is fixed via a bolt 37, and the lower end of the steel wire body 40 is
The upper and lower lengths of the steel wire body 40 are formed to have a length substantially coinciding with the lower end of the cylinder, and the tubular shape of the flexible discharge cylinder 38 is maintained.
Even when the discharge cylinder 38 abuts on a truck bed or the like, an accident such as damage to the discharge cylinder 38 is prevented.

As shown in FIGS. 5 and 6, a bearing member 41 is detachably fixed to the outer peripheral upper surface of the distal end of the auger cylinder 34, and the distal end of the auger shaft 15a of the discharge auger 15 is rotatably supported by the bearing member 41. At the same time, a rotation base plate 42 is fixedly mounted outside the lower portion of the auger cylinder 34 on the base end side of the bearing member 41, and a cylinder shaft 43 that rotatably supports the rotation fulcrum shaft 35 is provided on the lower surface of the rotation base plate 42. It is detachably fixed via bolts 44.

Further, the outlet rotation motor 45 is used as an actuator serving as a rotation driving means.
And a small-diameter gear 49 attached to the motor shaft 48 of the discharge port rotating motor 45 meshes with a gear 50 which is a fixed large-diameter gear of the rotating fulcrum shaft 35. A transmission mechanism is constituted, and left and right pivot support plates 51 fixed to the left and right ends of the rotation fulcrum shaft 35 are detachably fixed to the left and right inner side surfaces of the discharge port cover 53 via bolts 52, and the discharge port is rotated. When the rotation fulcrum shaft 35 is rotated by the drive of the motor 45, the discharge port cover 53 and the discharge cylinder 38 are also integrally rotated with the rotation fulcrum shaft 35 in the front-rear direction, which is the axial direction of the auger shaft 15a. are doing.

As shown in FIG. 6, the discharge port turning base 36 forms an outer peripheral wall facing the opening of the tip of the auger cylinder 34 in an arc portion 36a centered on the turning fulcrum shaft 35. The arc portion 3 outside the arc portion 36a by a certain dimension.
The outlet cover 53 having an inner peripheral surface 53a along the inner surface 6a
Is connected to the outside of the outlet rotation base 36.

As shown in FIG. 5, a discharge port rotating motor 45 and a gear 49 serving as a rotation mechanism for rotating the discharge port 25.
50 is disposed between the auger cylinder 34 and the discharge port turning base 36 and the left side plate of the discharge port cover 53, and as shown in FIG.
In the present invention, the left-side plate of the outlet cover 53 always covers and protects the outlet rotation motor 45, and in the present invention, the gears 49 and 50 have the outlet rotation base 3 in side view.
6 is always located on the inside of the appearance line of the left
It is configured to prevent the exposure of the gears 9/50 and protect the gears 49/50.

By the drive control of the discharge port rotation motor 45, the rotation angle θ of the discharge port 25 becomes 0 as shown in FIG.
From the horizontal storage state of 90 ° (90 ° <θ1 <
(180 °) in the rotation range (0 ° ≦ θ ≦ θ1).

Next, according to the rotation angle θ, the discharge auger 1
A mechanism for forcibly stopping the driving of No. 5 will be described. As shown in FIG. 7, an inclination angle sensor 110 composed of an absolute type rotary encoder or the like is provided on the left side surface of the discharge port turning base 36 which is a turning base of the discharge port 25. As shown, the inclination angle sensor 110 is connected to the outlet 2
5 and the ground angle α to the horizontal plane (0 ° <α ≦ 90)
°) to detect.

As shown in FIG. 5, a detecting portion of an outlet angle detecting sensor 54 such as a potentiometer is connected to a turning fulcrum shaft 35 serving as a turning base of the outlet 25.
A remote control box 56 described later is pivotally connected to the pivot shaft 35 by the outlet angle detection sensor 54. As shown in FIG. The angle β (0 ° ≦ β ≦ θ1) is detected. The inclination angle sensor 110 and the outlet angle detection sensor 54 are connected to a controller (control means) (not shown). The controller reads the ground angle α and the relative angle β, and calculates them based on the following conditional expressions. A determination is made.

That is, the discharge auger 15 and the discharge port 25 are rotated by the controller, and as shown in FIG. 9A, the angle δ () formed with the horizontal plane when the discharge port 25 is rotated rearward. = 180 °-(α + β)) and, as shown in FIG. 9B, the angle ε (= α) formed by the horizontal plane when the outlet 25 is rotated forward is calculated. This prevents the angles δ and ε from becoming less than or equal to the limit angle (in the present embodiment, 20 °) at which the grain naturally falls. That is, as shown in the flowchart of FIG. 10, α ≦ 20 ° or 180 ° − (α + β) ≦ 20 °
If any one of the conditional expressions is satisfied, an alarm buzzer sounds at the driver's seat 18 and electronic control is performed so that the auger clutch 26 shown in FIG. 3 is disengaged, the power from the engine 19 is cut off, and the bottom lateral feed is performed. The drive of the auger 23, the vertical feed auger 24, and the discharge auger 15 is stopped.
It should be noted that, under the conditional expression, even if the auger clutch 26 is manually engaged, the auger clutch 26 is not connected, and the power from the engine 19 is controlled so as not to be transmitted to the augers 15, 23, and 24.

Thus, the discharge port 25 rotates, and the above-mentioned α ≦ 2
Under the condition of 0 ° or 180 ° − (α + β) ≦ 20 °, the grains hardly flow near the connection between the discharge auger 15 and the discharge port 25. Thus, by electronically controlling the auger clutch 26, Under such conditions, the driving of the discharge auger 25 is forcibly stopped to prevent grain clogging.

Alternatively, in the electronic control according to the above-described configuration, an angle sensor may be attached to the rotation fulcrum shaft 90 serving as a vertical rotation base of the discharge auger 15 instead of the inclination angle sensor 110. In this case, as shown in FIG. As shown in FIG.
0 is connected to a detection unit of a discharge auger angle detection sensor 91 composed of a potentiometer or the like, and the discharge auger angle detection sensor 91 is connected to a discharge auger 1 via a sensor bracket 92.
5, and as shown in FIG.
Is detected with respect to the ground (0 ° ≦ γ <90 °).

The outlet angle detection sensor 54 and the discharge auger angle sensor 91 are connected to a controller (not shown), and the controller reads the relative angle β and the inclination angle γ. In this case, the angle δ formed with the horizontal plane when the discharge port 25 shown in FIG. 9A rotates backward, and the discharge port 25 shown in FIG. 9B rotates forward. The angle ε formed by the horizontal plane is δ = β + γ,
ε = 180 ° − (β + γ), and as shown in the flowchart of FIG.
The determination is made below the conditional expression of 180 ° or 180 ° − (β + γ) ≦ 20 °.

That is, if any of the conditional expressions is satisfied, an alarm buzzer sounds at the driver's seat 18 and electronic control is performed so as to disconnect the auger clutch 26 shown in FIG. Then, the driving of the bottom horizontal auger 23, the vertical auger 24, and the discharge auger 15 is stopped. It should be noted that under the conditional expression, even if the auger clutch 26 is to be engaged, the auger clutch 26 is not connected, and the power from the engine 19 is controlled so as not to be transmitted to the augers 15, 23, and 24. In this way, under these conditions, the driving of the discharge auger 25 is forcibly stopped to prevent grain clogging.

It should be noted that the type of sensor for detecting the rotation angle of the discharge auger 15 and the discharge port 25 is not particularly limited, and the location of the sensor may be appropriately set.

Next, the location of the remote control box 56 of the discharge auger 15 according to the first embodiment of the present invention will be described. As shown in FIGS. 5 and 7, in the present invention, the remote control box 56 is disposed near the rotation fulcrum shaft 35 in the left side view of the outlet rotation base 36. The procedure will be described below.

First, a support plate 46 is disposed at the left end of the pivot shaft 35, and the outlet angle detection sensor 54 is screwed into the support plate 46 and the pivot shaft 35 from within the remote control box 56 and fastened. Then, the remote control box 56 is attached to the pivot shaft 35. The support plate 46
5 and the rear of the left side of the discharge port rotation base 36 with bolts 5
5 and the remote control box 56 and the support plate 46 are bolted to each other at a point other than the rotation fulcrum shaft 35.
2 to fasten.

Thus, the remote control box 56 is fixedly mounted near the pivot shaft 35. With such a configuration, even when the outlet cover 53 is rotated, the remote control box 56 can maintain the position and orientation as it is without rotating, and is easy for the operator to operate, thereby improving workability. It is.

In addition, the remote operation box 56 will be briefly described. The remote operation box 56 includes a cross-type auger operation lever 57, an auger clutch operation switch 58, an auto return switch 60, and a discharge port rotation operation switch 61. The lifting / lowering and turning operations of the discharge auger 15 are performed by the cross-type auger operation lever 57, and the auger clutch 26 (see FIG. 3) is turned on / off by the auger clutch operation switch 58. The discharge auger 15 turned to the discharge set position on the outside of the machine by the switch 60 is automatically returned to the original auger rest position 59 (see FIGS. 1 and 2), and the discharge port 25 is moved to the discharge set position by the discharge port rotation operation switch 61. Or, it rotates to the storage position. In this manner, the operator operates the remote control box 56 at the discharge work position away from the driver's seat 18 such as a truck bed to turn or rotate the discharge auger 15.

Next, the structure of the discharge port 25 of the discharge auger 15 will be described below in two different embodiments (second embodiment and third embodiment). First, in the second embodiment, FIGS.
As shown in FIG. 3, the outlet rotation motor 45 ', which is a rotation mechanism for rotating the outlet 25', and gears 49 'and 50'.
Is housed in the remote control box 56 '.
Hereinafter, the configuration will be described.

The left end of the pivot shaft 35 'is inserted into the remote control box 56', and a support plate 46 is provided at the right end of the remote control box 56 '.
And the rear part of the left side of the discharge port rotating base 36 'is fastened and fixed by bolts 55, and the remote control box 5
6 'and the support plate 46 are fastened and fixed at appropriate positions.

Thus, the remote control box 56 'is fixed near the pivot shaft 35'. In such a configuration, even if the outlet cover 53 'is rotated, the remote control box 5
6 'can maintain its position and orientation as it is without rotating, so that the operability is easy for the operator, so that the workability can be improved.

A motor base 66 for mounting the discharge port rotation motor 45 'as a rotation drive means is formed in an "L" shape as viewed from the front, and is vertically fixed from the upper surface in the remote control box 56' and fixed. . A discharge port rotation motor 45 'is detachably fixed to the right side surface of the motor base 66 via a bolt 67, and the motor shaft 4 of the discharge port rotation motor 45' is fixed.
A small diameter gear 49 'attached to 8' is engaged with a gear 50 'which is a fixed large diameter gear of the rotation fulcrum shaft 35'. The left and right pivot plates 51 fixed to the left and right ends of the rotation fulcrum shaft 35 'in the discharge port cover 53' are detachably fixed to the left and right inner side surfaces of the discharge port cover 53 'via bolts 52, and the discharge port is formed. When the rotation fulcrum shaft 35 ′ is rotated by driving the rotation motor 45 ′, the discharge port cover 5 is integrated with the rotation fulcrum shaft 35 ′.
The 3 'and the discharge tube 38' are also configured to rotate in the front-rear direction which is the axial direction of the auger shaft 15a.

With this configuration, the width of the discharge port 25 'can be reduced in a front view.
It has a smart shape in appearance, and is designed to give aesthetic appearance through visual perception. Also, the outlet tip 25 '
Since the opening area of “a” is small, it can be reliably ejected to the bed such as a truck and the like, and scattering of grains is prevented.

Further, in such a configuration, the cover of the discharge port rotating motor 45 'and the gears 49' and 50 'is also configured by the remote control box 56' so as to prevent exposure and protect. , New motor 45 ', gear 49'
There is no need for a 50 'cover, and the number of parts can be reduced, resulting in a reduction in cost.

Next, the configuration of the discharge port 25 of the discharge auger 15 will be described in a third embodiment. In the third embodiment,
As shown in FIG. 14, the outlet rotation motor 45 "which is a rotation mechanism for rotating the outlet 25" and gears 49 "and 5"
0 "is stored in the cover box 68, and the cover box 68 is disposed on the right side surface of the discharge port turning base. The configuration will be described below.

The pivot 3 is inserted into the cover box 68.
A support plate 69 is provided at the left end of the cover box 68, and a rear portion of the support plate 69 and a rear portion of the left side surface of the outlet rotation base 36 "are fastened and fixed by bolts 71, Then, the cover box 68 and the support plate 46 are fastened and fixed by bolts 72.

In this manner, the cover box 68 is fixed to the vicinity of the rotation fulcrum shaft 35 ". In such a configuration, even if the discharge port cover 53" is rotated, the cover box 68 does not rotate but maintains its position and orientation. You can do it.

Then, a discharge port rotation motor 45 ″ serving as a rotation drive means is bolted to the right side surface in the cover box 68.
3 and a small-diameter gear 4 attached to the motor shaft 48 "of the discharge port turning motor 45".
9 "is a gear 5 which is a fixed large-diameter gear having a rotating fulcrum shaft 35".
The left and right pivot plates 51 fixed to the left and right ends of the rotation fulcrum shaft 35 "in the outlet cover 53" are detachably attached to the left and right inner side surfaces of the outlet cover 53 "via bolts 52. When the rotation fulcrum shaft 35 "is rotated by driving the discharge port rotation motor 45" while being fixed, the rotation fulcrum shaft 3 "
The discharge port cover 53 "and the discharge tube 38" are also configured to rotate integrally with the 5 "in the front-rear direction which is the axial direction of the auger shaft 15a.

With such a configuration, the width of the discharge port 25 "can be reduced in a front view.
It has a smart shape in appearance, and is designed to give aesthetic appearance through visual perception. In addition, the outlet outlet tip 25 "
Since the opening area of “a” is small, it can be reliably discharged to the loading platform such as a truck and the like, and scattering of grains is prevented.

Further, since the discharge port rotating motor 45 "and the gears 49" and 50 "are assembled in the cover box 68, the drive mechanism built in the cover box 68 can be produced in a separate process, and the assembly can be performed. The quality is improved.

Incidentally, also in the second and third embodiments,
As in the first embodiment, a sensor for detecting the rotation angle of the discharge auger 15 and the discharge port 25 is provided at an appropriate position, and the sensor calculates the ground angle of the discharge port 25. When the ground angle is equal to or less than the set value, the discharge is performed. It is also possible to control so that the auger 15 cannot be driven.

[0046]

The present invention is configured as described above.
The following effects are obtained. That is, in the combine for taking out the grains in the grain tank by the discharge auger as in claim 1, the discharge auger is provided with a rotation base at the tip of the discharge auger, and is rotatably mounted to operate the discharge auger and the discharge auger. Is arranged on the discharge auger side near the rotation fulcrum axis of the discharge port, for example, while the operator sees the accumulation of grains on the truck bed, the lifting and lowering and turning operations of the discharge auger and By rotating the discharge port, the grain can be discharged uniformly and efficiently, and the workability can be improved. In addition, since the remote control device is disposed near the rotation fulcrum axis of the discharge port, the position itself of the remote control device does not change even if the discharge port rotates at any angle, and the distance that the operator can reach is sufficient. Therefore, the remote control device can be operated accurately and the operability can be improved. Further, if the remote control device is fastened to the rotation fulcrum shaft of the discharge port and the rotation base of the discharge port, the remote control device itself does not rotate, so that the relative position between the operator and each operation switch of the remote control device is controlled. The relationship does not change, and the upper, lower, left and right closing directions of the cross-type operation lever remain unchanged, so that the operation is easy and the operability can be further improved.

Further, since the actuator and the transmission mechanism for rotating the discharge port are covered with a cover for covering the rotation base of the discharge port, the cover for the actuator and the transmission mechanism is separately provided. Since it is not necessary, the number of parts is reduced and the cost is reduced. In addition, the rotation base of the discharge port prevents exposure of the actuator and the transmission mechanism to prevent dust and prevent intrusion of rainwater and the like. Further, since the transmission mechanisms such as the actuators and gears are covered, they are safe and lead to accident prevention.

According to a third aspect of the present invention, an actuator for rotating the discharge port and a transmission mechanism are disposed in a cover that houses the remote control device, so that the lateral width of the discharge port is narrowed in a front view. The appearance is smart, the shape is neat and the design is clear, and the visual aesthetic is aroused. In addition, since the opening area is small at the outlet at the tip of the discharge port, it can be reliably ejected to the bed such as a truck and the like, and scattering of grains is prevented. further,
In such a configuration, since the cover of the actuator and the transmission mechanism is also configured to be exposed and prevented by the cover of the remote control device, the cover for the actuator and the transmission mechanism is not necessary, The number of parts can be reduced, and as a result, the cost can be reduced.

Alternatively, an actuator and a transmission mechanism for rotating the discharge port are provided in the cover, and the cover is provided near the rotation fulcrum shaft on the outer surface of the discharge port. The width of the outlet can be made narrower when viewed from the front, and the appearance is sleek and the design is sleek, giving aesthetically pleasing appearance. In addition, since the opening area is small at the outlet at the tip of the discharge port, it can be reliably ejected to the bed such as a truck and the like, and scattering of grains is prevented. Further, since the actuator and the transmission mechanism are assembled in the cover as described above, the actuator and the transmission mechanism can be produced in a separate process.
The assemblability is improved.

Further, in a combine for taking out the grains in the grain tank by a discharge auger, a discharge port is rotatably arranged at a tip of the discharge auger.
An angle sensor and a rotation actuator are provided at the rotation base of the discharge port, and the angle sensor, the rotation actuator, and the discharge auger drive connecting / disconnecting means are connected to the control means. By stopping the driving of the grain, clogging of the grain is prevented beforehand. That is, the set value is set at an upper limit value when the grain is likely to be clogged in the discharge auger, and when the grain size becomes equal to or less than the set value, the activated discharge auger is forcibly stopped, and
Even if the clutch for driving the discharge auger is engaged, the clutch is not engaged. Thus, when the operator remotely controls the discharge port and the discharge auger from the driver's seat, it is difficult to visually recognize the rotation angle, and the operator may accidentally rotate the discharge port more than necessary, If the above control is performed, when the discharge port is turned below the set value, the operator is notified by an alarm buzzer or the like, and at the same time, the discharge auger is forcibly stopped to prevent grain clogging. It is possible to improve safety.

[Brief description of the drawings]

FIG. 1 is an overall side view of a combine.

FIG. 2 is a plan view of the same.

FIG. 3 is a plan view of a grain tank unit.

FIG. 4 is an explanatory view of a vertical feed auger unit.

FIG. 5 is a front sectional view of an outlet according to the first embodiment of the present invention.

FIG. 6 is a left side sectional view of the same.

FIG. 7 is a left side view of the same.

FIG. 8 is an explanatory diagram showing an angle of a discharge port to ground.

FIG. 9 is an explanatory diagram showing a rotation angle of a discharge port when a discharge auger is forcibly stopped.

FIG. 10 is a flowchart illustrating control for forcibly stopping a discharge auger.

FIG. 11 is a flowchart illustrating another control for forcibly stopping the discharge auger.

FIG. 12 is a front sectional view of an outlet according to a second embodiment of the present invention.

FIG. 13 is a left side sectional view of the same.

FIG. 14 is a front sectional view of an outlet according to a third embodiment of the present invention.

FIG. 15 is a right side view of the same.

[Explanation of symbols]

 15 Discharge Auger 25 Discharge Port 26 Auger Clutch 35 Rotating Support Shaft 36 Discharge Port Rotation Base 45 Discharge Port Rotation Motor 49 Gear 50 Gear 54 Discharge Port Angle Detection Sensor 56 Remote Control Box 68 Cover Box 91 Discharge Auger Angle Detection Sensor 110 Tilt angle sensor α Ground angle β Relative angle γ Tilt angle

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2B092 AA01 AB04 CA18 CA71 CB01 2B396 JA04 JC07 KE03 KE04 LA03 LE16 LG07 LG16 LR02 LR08 LR15 MA07 MC04 MC07 MC13 PA02 PA13 PA30 PA47 PC02 PC12 QA02 QA22 QE25 RA10 RA25 RA28

Claims (5)

[Claims] In a combine for taking out grains in a grain tank by a discharge auger, a remote control for operating a discharge auger and a discharge port by providing a rotation base portion of a discharge port at a tip of the discharge auger and rotatably mounting the discharge auger. A discharge auger for a combine, wherein the apparatus is disposed on a discharge auger side near a rotation fulcrum axis of the discharge port. 2. The discharge auger according to claim 1, wherein the actuator and the transmission mechanism for rotating the discharge port are covered with a cover covering a rotation base of the discharge port. 3. The discharge auger according to claim 1, wherein an actuator and a transmission mechanism for rotating the discharge port are disposed in a cover that houses the remote control device. 4. The apparatus according to claim 1, wherein an actuator and a transmission mechanism for rotating the discharge port are disposed in a cover, and the cover is disposed near a rotation fulcrum axis on an outer surface of the discharge port. Combine discharge auger. 5. A combine for taking out grains in a grain tank by a discharge auger, wherein a discharge port is rotatably disposed at a tip of the discharge auger, and an angle sensor and a rotation actuator are provided at a rotation base of the discharge port. The angle sensor, the rotation actuator, and the discharge auger drive connecting / disconnecting means are connected to a control means, and the drive of the discharge auger is controlled to be stopped when the discharge port rotates by a predetermined angle or more. Discharge auger.