JP3010834B2 - Combine grain discharger - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine grain discharging device.

[0002]

2. Description of the Related Art Japanese Unexamined Utility Model Publication No. Hei 2-12843 discloses a fixed discharge drum and a grain storing a grain which is rotatably pivoted with respect to the discharge cylinder. A discharge spiral wing for feeding grain to the discharge and lifting cylinder on the Glen tank side, and an intermediate spiral wing for engaging and disengaging with the discharge spiral wing on the discharge and lifting cylinder side. Are described. Note that, in the specification and drawings of Japanese Patent Application No. 3-12912, which is a prior application to the present application, a discharge fryer cylinder having a fixed position, and a grain rotatably pivoted with respect to the discharge fryer cylinder are described. A discharge spiral wing that feeds grain to the discharge and lift cylinder on the Glen tank side, and an intermediate disengagement and disengagement with the discharge spiral wing on the discharge and discharge cylinder side In the configuration in which the spiral blade is provided, an engaging projection is provided at a tip of the rotation shaft of the discharge spiral blade so as to protrude to both sides through the rotation shaft in a lateral direction, and to a center of the rotation shaft of the intermediate spiral blade. An insertion hole into which the tip of the rotation shaft is inserted and engaged is provided, and an engagement flange portion detachably engaged with the engagement protrusion projects on one side of the end surface of the rotation shaft in a direction parallel to the axis. A formed combine grain discharger has been proposed.

[0003]

The discharge spiral blade and the intermediate spiral blade of the above-mentioned known example are merely detachable, and the structure of the details is not devised. In the invention of the prior application, the configuration of attachment / detachment of the discharge spiral blade and the intermediate spiral blade is devised up to a detailed configuration, but in the prior application, the rotation shaft is laterally attached to the tip of the rotation shaft of the discharge spiral blade. Is provided with an engagement projection projecting to both sides, and an insertion hole into which the tip of the rotation shaft is inserted and engaged is provided at the center of the rotation shaft of the intermediate spiral blade, and the insertion hole is provided on one side of the end face of the rotation shaft. Since the engagement protrusion is configured such that the engagement flange portion detachably engages is formed to protrude in the direction parallel to the axis, the area of the portion where the engagement flange portion does not exist is large,
When the engaging projection engages with the engaging projection, a large play can be made, so that there is a problem that the rotation is transmitted to the rotary shaft on the side of the intermediate spiral blade in a shocking manner.

[0004]

The object of the present invention is to prevent transmission of an impact between the engaging projection and the rotating shaft on the side of the intermediate spiral blade.

[0005]

SUMMARY OF THE INVENTION Accordingly, the present invention is directed to a grain tank for storing a fixed-position discharge bin 13 and a grain that is horizontally rotatable with respect to the discharge bin 13. 6
The discharge tank 1 is provided on the Glen tank 6 side.
3 is provided with a discharge spiral blade 7 for laterally feeding grain, and an intermediate spiral blade 15 for engaging and disengaging with the discharge spiral blade 7 is provided on the discharge graining cylinder 13 side. At the tip of the shaft 46, there are provided engagement protrusions 48, 48 protruding to both sides through the rotation shaft 46 in a lateral direction.
An insertion hole 50 into which the tip of the rotary shaft 46 is inserted and engaged is provided at the center of the rotary shaft 49, and the engaging projection 48 is detachably engaged with one half of the end surface of the rotary shaft 49. A plurality of engaging flanges 51 to be combined are formed so as to protrude in a direction parallel to the axis,
An engaging groove 52 is provided between the engaging flanges 51 to form a combine grain discharging device in which an engaging concave portion 53 is formed in one half of the remaining half where the engaging flange 51 is not provided.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described. A straw processing device having a cutter for cutting straw, 6 is a Glen tank provided on the side of the threshing device 4 for storing grains threshed by the threshing device 4, and the Glen tank 6 has a storage position and a maintenance position. It is provided so as to be freely rotatable horizontally between the outside opening positions for such purposes. Although not shown, a mowing unit is provided in front of the traveling device 2, and a transport unit that supplies grain culms to the threshing device 4 is provided on a side portion of the driver's seat 3. A front-rear discharge spiral blade 7 for discharging grains in the tank 6 to the outside of the machine is provided in the Glen tank 6, and a rear end of the discharge spiral blade 7 projects outward from a rear wall 8 of the Glen tank 6. . The rear end of the discharge spiral blade 7 is surrounded by a discharge tube 9 fixed to the rear wall 8. The discharge tube 9 is detachably attached to an auger metal 11 fixed to the machine frame 1 via a stay 10. On the upper part of the auger metal 11 is a grain discharging device 12
And the lower part of the discharge and frying cylinder 13 is rotatably mounted. A base of a discharge auger 14 for discharging cereals into a tank of a truck is rotatably mounted on the upper part of the discharge fryer 13.

The tip of the discharge spiral blade 7 is connected to the discharge cylinder 9
And is detachably connected to the tip of an intermediate spiral blade 15 provided in the auger metal 11, as will be described later. A base of the intermediate spiral blade 15 is mounted on a bearing 16 provided in the auger metal 11. I do. In addition, a vertical spiral blade is provided in the discharge and discharge cylinder 13, and a lower portion of the vertical spiral blade is attached to a bearing 16 of the auger metal 11. The lower portion of the Glen tank 6 is configured to rotate about a lower shaft 17 provided at a joint between the discharge cylinder 9 and the auger metal 11. The end face of the joint of the auger metal 11 is provided with the discharge cylinder 9.
A flange portion 19 is formed so that a distal end portion 18 formed at the outer end portion thereof fits. A notch 20 is formed below the flange 19 so that the grains of the flange 19 fall from the notch 20. That is, once the Glen tank 6 is opened and rotated, the grains in the auger metal 11 spill into the flange 19,
If the Glen tank 6 is returned to the original position in this state,
The spilled grains are sandwiched between the tip portion 18 and the flange portion 19, and the discharge cylinder 9 and the auger metal 11 are not completely tightened, causing grain leakage. By dropping, the distal end portion 18 of the discharge tube 9 is completely fitted into the flange portion 19 of the auger metal 11.

An annular abutting surface 21 is formed on the inner peripheral surface on the back side of the flange portion 19, which is substantially vertical to which the distal end portion 18 abuts, except for the cutout portion 20. For the time being 21
An inclined inner peripheral surface 22 having a larger diameter as it reaches the Glen tank 6 side is formed at the periphery of the inclined inner peripheral surface 22. The inner peripheral surface of the inclined inner peripheral surface 22 on the Glen tank 6 side has a horizontal inner peripheral surface 23 having the same inner diameter throughout. Form. The inclined inner peripheral surface 22 and the horizontal inner peripheral surface 23 are also formed in an annular shape except for the cutout portion 20. The tip 1
8 has a substantially vertical abutment surface 24 at the end thereof, which abuts against the abutment surface 21, and a slanted outer peripheral surface 25 having a larger diameter toward the Glen tank 6 at the periphery of the abutment surface 24. ,
A horizontal outer peripheral surface 26 having the same outer diameter is formed on the peripheral edge of the inclined outer peripheral surface 25, and an annular annular flange 45 is formed on the horizontal outer peripheral surface 26 on the side of the Glen tank 6. It is configured to touch. That is, when the distal end portion 18 is inserted into the flange portion 19, the contact surface 24 comes into close contact with the abutment surface 21, and there is a gap between the inclined inner peripheral surface 22 and the inclined outer peripheral surface 25,
The horizontal outer peripheral surface 26 is closely fitted to the horizontal inner peripheral surface 23, and the flange 1
The annular flange portion 45 abuts on the end face of 9 and is sealed at three places. In addition, the discharge spiral blade 7 conveys the kernel by shifting the grain to either the rotation rising side or the rotation lower side from the center depending on the shape thereof, so that the lower shaft 17 is moved in the rotation direction of the discharge spiral blade 7. In the relative relationship of (1) and (2), the grain is provided on the side where the grain is offset, and the grain is located on the side where the degree of opening is small when the discharge cylinder 9 is opened and rotated to reduce the leakage of the grain.

The rotating shaft 46 of the discharge spiral blade 7 is
Is formed on a tip projection 47 formed in a conical shape having a smaller diameter as it reaches the tip, and a base of the tip projection 47 is formed so as to project in a direction orthogonal to the axial direction of the rotating shaft 46. An engagement projection 48 is formed so as to protrude to both sides through the rotation shaft 46 in a lateral direction. The engagement projection 48 is formed as a pair,
It is formed in a uniaxial shape. The rotary shaft 49 of the intermediate spiral blade 15 has an insertion hole 50 into which the tip projection 47 is inserted. On one half of the end face of the rotating shaft 49, a plurality of engaging flanges 51 with which the engaging projections 48 are detachably engaged are formed so as to protrude in a direction parallel to the axis. The engagement flange portion 51 is formed by dividing the end face of the rotary shaft 49 into four portions and forming two adjacent half portions on one side, and an engagement groove 52 is formed between the engagement flange portions 51. The engaging flange 51 is formed so that its width becomes smaller toward the tip. In addition, four engagement recesses 53 with which the engagement protrusions 48 are engaged are formed at the edge of the rotation shaft 49, and one of the engagement recesses 53 is formed at the bottom of the engagement groove 52. You.

Thus, the rotation axis 46 of the discharge spiral blade 7
Once the Glen tank 6 is once opened outward and rotated, the tip projection 47 of the intermediate screw is separated from the insertion hole 50 of the intermediate spiral blade 15,
When the Glen tank 6 is returned to the original position, the tip projection 47 is inserted into the insertion hole 50 and the engagement projection 4 of the tip projection 47 is inserted.
8 engages with an engaging groove 52 between the engaging flange 51 and the other engages with an engaging recess 53 corresponding to the engaging groove 52. The mating projection 48 is formed so as to protrude outward so as to abut against the inner surface of the engaging flange 51 and not lock when it is rotated about the lower shaft 17. The engagement flange 52 is configured to engage with the engagement groove 52 while being in contact with the side surface thereof.
The inner surface of the insertion hole portion 50 at the end edge side is formed in a tapered surface 54 so as to have a smaller diameter toward the inner side in the axial direction, and the tip of the tip projection portion 47 contacts the inner surface of the insertion hole portion 50. It is configured to prevent locking.

Reference numeral 27 denotes a rear support frame fixed to the rear end of the body frame 1 in a U-shape in a side view. A rotation support member 29 is mounted on an upper frame 28 of the rear support frame 27, and the rotation is performed. The outer periphery of the upper part of the discharge / frying cylinder 13 is rotatably attached to the support member 29. Bent portion 30 of the upper frame 28
, A stay 31 is fixed, an angle-shaped support member 32 is fixed to the stay 31, and the upper shaft 3 is fixed to the support member 32.
3, and an upper rotating portion 34 provided above the Glen tank 6 is mounted on the upper shaft 33. The upper shaft 33 serves as a pivot center of the upper part of the Glen tank 6. Numeral 35 denotes a tank rotation support frame, which is formed in an inverted L-shape by a rear frame 36 in the left-right direction and a horizontal frame 37 in the front-rear direction. The rear frame 36
The connecting portion between the frame and the horizontal frame 37 is fixed to the side wall 38 side of the threshing device 4 by a support member 39, and the intermediate portion of the horizontal frame 37 is connected to the grain tank 6 from the threshing device 4 by mounting brackets 40, 40. Is fixed to the supply fryer cylinder 41 for supplying. The front end of the horizontal frame 37 is configured to extend forward from the feeding and frying cylinder 41, and is fixed to the front inside portion of the threshing device 4. The lower part of the feeding and frying cylinder 41 is fixed to the frame of the threshing apparatus 4 so as to be connected to the end of the first conveyor provided in the threshing apparatus 4, and the upper casing 43 of the feeding and frying cylinder 41 is provided with the Glen tank. 6 is removably attached to an input port formed in the inner side wall 44. The straw processing device 5 is rotatably attached to the rear support frame 27. Although not shown, the Glen tank 6 is locked by a locking device provided at a desired position.
Fixed on the side. In the figure, reference numeral 55 denotes a second product returning device for returning a second product taken out of a second conveyor of the threshing device to a sorting device, although not shown, and a reduction spiral 57 is provided in a cylindrical member 56, A cleaning port 58 is opened in the member 56, and a lid member 59 is detachably attached to the cleaning port 58. Reference numeral 60 denotes an opening / closing lever.

[0012]

Next, the operation will be described. When the fuselage is advanced, the cutting unit cuts the culm in the field, supplies the cut culm to the threshing device to thresh, the first thing is taken out by the first conveyor, and the first is supplied to the end of the conveyor. Since the lower part of the fryer 41 is connected, the grain taken out by the first conveyor is fried by the supply fryer 41 and stored in the Glen tank 6. When a certain amount of grain is stored in the Glen tank 6, the aircraft is moved to a waiting light truck near the field to operate the grain frying discharge device 12 and the discharge spiral blade 7, and the grain in the Glen tank 6 is moved. Flows into the auger metal 11 through the discharge tube 9 by the discharge spiral blade 7, and the inflowing grain is conveyed to the lower part of the discharge kernel 13 by the intermediate spiral blade 15, and is grained and discharged by the discharge kernel 13. After entering the auger 14, the grain is discharged into the tank of the light truck by the discharge auger 14, and a grain discharging operation from the Glen tank 6 is performed.

When the harvesting and threshing operation and the discharging operation are completed, or when a problem occurs in the transmission on the back side of the Glen tank 6 during the discharging operation,
The auger metal 11 of the grain fry discharging device 12 and the casing 43 of the supply fryer 41 are left on the fuselage side, and the upper part of the Glen tank 6 is centered on the upper shaft 33, and the lower part of the Glen tank 6 is centered on the lower shaft 17. Opening and horizontal rotation, a wide space is formed around the side wall 38 of the threshing device 4, and inspection and
When maintenance such as cleaning is performed and the work such as the inspection is completed, the Glen tank 6 is returned to the storage position centering on the upper shaft 33 and the lower shaft 17.

Although not shown, power from the engine is transmitted to one end of the rotary shaft 46 of the discharge spiral blade 7 in the Glen tank 6, and the discharge spiral blade 7 rotates. Is transmitted to the intermediate spiral blade 15 by the engagement between the engaging projection 48 on the tip end side of the discharge spiral blade 7 and the engagement flange portion 51 of the intermediate spiral blade 15, and the rotation of the intermediate spiral blade 15 is
3 is transmitted to a spiral wing (not shown). In this case, the intermediate spiral blade 15 and the discharge spiral blade 7 are arranged such that the intermediate spiral blade 15 is inside the auger metal 11, but the discharge spiral blade 7 opens outward together with the Glen tank 6. The engagement between the engagement protrusion 48 of the wing 7 and the engagement flange 51 is as follows.
It is detachable, and an engaging flange portion 51 is formed on the end surface of the rotating shaft 49 of the intermediate spiral blade 15 so as to have an engaging groove 52 between two adjacently separated positions at four divided positions. Since four engagement recesses 53 are formed on the end surface, and one of the engagement recesses 53 is formed at the bottom of the engagement groove 52, when the Glen tank 6 is returned to the original position, the discharge spiral is formed. The tip projection 47 of the rotating shaft 46 of the wing 7 is inserted into the insertion hole 50, and one of the engagement projections 48 at the base of the tip projection 47 is inserted into the engagement groove 52.
And the other engages with the engagement recess 53. Therefore, when the rotation shaft 46 of the discharge spiral blade 7 is rotated, the engaging projection 48 causes the intermediate spiral blade 1 without play due to play.
5 is rotated. That is, the engagement flange 51
When only one is provided, the engagement protrusion 48 is
Since the play before contacting the abutment is large, the rotational force of the discharge spiral blade 7 is increased, and there is a possibility that the bevel gear in the auger metal 11 may be damaged by the impact of the engagement projection 48 colliding with the engagement flange 51. However, the present invention prevents this.

Further, when four engagement flanges 51 are provided,
The engagement protrusions 48 engage with the engagement grooves 52 on both sides of the engagement flange portions 51 to lock the engagement, so that the rotation of the Glen tank 6 is disabled. Since the flanges 51 are adjacent to each other with the engagement groove 52 interposed therebetween, the engagement is ensured. In this case, since the two engaging protrusions 48 are linearly arranged, both may not be engaged with the engaging groove 52 (normally, one of the engaging protrusions 48 is engaged with the engaging groove 52). The engagement projection 48 is engaged with the engagement recess 53 of the intermediate spiral blade 15 when the Glen tank 6 is returned to the original position. In this case, since one of them is located on the base side of the engagement flange 51, the rotation of the discharge spiral blade 7 is transmitted to the intermediate spiral blade 15 without any problem in strength. In addition, since the two engagement projections 48 always engage with the engagement recesses 53, the engagement is performed with the same strength as the provision of the four engagement flanges 51.

The engagement projection 48 is formed so as to protrude outward so as not to come into contact with the inner surface of the engagement flange 51 when the engagement projection 48 is rotated about the lower shaft 17. The tip of the projection 48 engages with the engagement groove 52 while abutting on the side surface of the engagement flange 51 without abutting on the inner surface of the engagement flange 51, and engages with the engagement projection 48 and the engagement flange 51. It prevents the inner surface from contacting and locking. Further, since the inner surface of the insertion hole 50 at the end edge side is formed in the tapered surface 54 so as to have a smaller diameter toward the inner side in the axial direction, the tip of the tip projection 47 is in contact with the inner surface of the insertion hole 50. Prevents contact and locking.

[0017]

According to the present invention, the drainage tank 13 has a fixed position, and a grain tank 6 for storing grains that is axially rotatable with respect to the drainage cylinder 13. 6
The discharge spiral blades 7 for feeding the grain laterally to the discharge fryer cylinder 13 are provided on the side of the discharge helix cylinder 13.
And the intermediate spiral blade 15 that engages and disengages with
The tip of the rotating shaft 46 of the discharge spiral blade 7 is
Are provided laterally and projecting to both sides, and an insertion hole 50 into which the tip of the rotating shaft 46 is inserted and engaged with the center of the rotating shaft 49 of the intermediate spiral blade 15. A plurality of engaging flanges 51 are formed on one half of the end face of the rotating shaft 49 so that the engaging protrusions 48 are detachably engaged with the engaging flanges 48 in a direction parallel to the axis. Engagement groove 5 between
2 is a combine grain discharging device in which engaging recesses 53 are formed in one half of the remaining portion where the engaging flange 51 is not provided, so that the area of the portion where the engaging flange 51 is not present is small, Since there is no play when the engagement projection 48 is engaged, an effect is obtained that the rotation is prevented from being transmitted to the rotation shaft 49 of the intermediate spiral blade 15 by impact.

[Brief description of the drawings]

FIG. 1 is a side view.

FIG. 2 is a plan view.

FIG. 3 is a sectional view of a main part.

FIG. 4 is a front view of an auger metal.

FIG. 5 is a cross-sectional view of a joint portion between the auger metal and the discharge cylinder.

FIG. 6 is a cross-sectional view of a joint portion between the auger metal and the discharge cylinder.

FIG. 7 is a cross-sectional plan view of a main part.

FIG. 8 is a plan view of a main part.

FIG. 9 is a side view of a main part.

FIG. 10 is a front view of a main part.

FIG. 11 is a side view of an intermediate spiral blade.

FIG. 12 is a sectional view showing an engaged state.

FIG. 13 is a sectional view showing an engaged state.

FIG. 14 is a side view of the second return device.

FIG. 15 is a sectional view of the same.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Body frame, 2 ... Traveling device, 3 ... Driver seat, 4 ... Threshing device, 5 ... Drainage treatment device, 6 ... Glen tank, 7 ... Discharge spiral blade, 8 ... Rear wall, 9 ... Discharge cylinder, 10 ... stay, 11
... auger metal, 12 ... grain discharge equipment, 13 ... discharge fryer, 14 ... discharge auger, 15 ... middle spiral blade, 16 ...
Bearing, 17: Lower shaft, 18: Tip, 19: Flange, 20
... Notch, 21... Abutment surface, 22... Inclined inner peripheral surface, 23... Horizontal inner peripheral surface, 24... Contact outer surface, 25. Frame, 2
9: rotation support member, 30: bent portion, 31: stay, 32
... Support member, 33 ... Upper shaft, 34 ... Upper rotating part, 35 ...
Tank rotation support frame, 36: rear frame, 37: horizontal frame, 3
Reference numeral 8: Side wall, 39: Support member, 40: Mounting bracket, 41: Supplying grain, 43: Casing, 44: Inner side wall, 45:
Annular flange part, 46 ... rotating shaft, 47 ... tip protrusion part, 48 ... engagement protrusion, 49 ... rotation shaft, 50 ... insertion hole part, 51 ... engagement flange part, 52 ... engagement groove, 53 ... engagement concave part Reference numeral 54, a tapered surface, 55, a second return device, 56, a cylindrical member, 57, a reduction spiral, 58, a cleaning port, 59, a lid member, 60, an opening / closing lever.

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Shoji Nakai 1-Yachikura, Tobe-cho, Iyo-gun, Ehime Prefecture Iseki Agricultural Machinery Co., Ltd. Engineering Department (58) Field surveyed (Int.Cl. ⁷ , DB name) A01F 12/46 B65G 33/32

Claims (1)

(57) [Claims] 1. A discharge tank 13 having a fixed position, and a grain tank 6 for storing grains that are rotatably supported on the discharge tank 13 in a horizontally rotatable manner. Provided with a discharge spiral blade 7 for feeding the grain laterally to the discharge and lifting cylinder 13, and an intermediate spiral blade 15 for engaging and disengaging with the discharge spiral blade 7 on the discharge and lifting cylinder 13 side, At the tip of the rotating shaft 46 of the discharge spiral blade 7, there are provided engaging projections 48, 48 projecting laterally through the rotating shaft 46, and at the center of the rotating shaft 49 of the intermediate spiral blade 15. A plurality of engaging flanges 51 are provided on one half of the end surface of the rotating shaft 49 so that the engaging projections 48 can be detachably engaged. Are formed so as to project in the direction parallel to the axis, and the engagement groove 5 is provided between the engagement flanges 51.
2 is a combine grain discharging device in which engaging recesses 53 are respectively formed in one half of the remaining portion where the engaging flange portion 51 is not provided.