JP2579910Y2 - Grain transfer device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grain transfer device in which a transfer spiral is provided inside a cylindrical body, and a halfway portion of the transfer spiral can be interrupted.

[0002]

2. Description of the Related Art Conventionally, Japanese Utility Model Laid-Open No. 57-37913 discloses
As shown in the figure, the transfer spiral is provided inside the cylinder, and the helical shaft and the cylinder of the transfer spiral are intermittently divided in the middle of the transfer spiral, and the terminal end of the lower helical shaft is divided into a support arm and a bearing holder held by the cylinder. supported through a bearing, and removably operatively connected to dividing unit of the helical axis, the tapered pin provided under the helical axis
An integrally mounted engagement pin is provided integrally with the upper spiral shaft.
The upper helical shaft is rotated by engaging the
Grain transfer device which is already known.

[0003]

The above-mentioned known grain transfer device uses a tapered pin integrally provided with an engaging pin as a bare.
To the supporting arm through the bearing and bearing holder,
When a taper pin is spline-fitted to the upper part of the lower spiral shaft,
The lower helical shaft is fixed by fixing the support arm to the lower cylinder.
The upper end of the lower shaft is supported by the engagement pin
Is worn due to engagement with the projection provided on the upper helical shaft,
Remove only the taper pin with the integral engagement pin
Can not be supported, with the support arm, bearing, bearing holder
Remove the taper pin from the lower cylinder,
-Remove the pin and replace it.
Replacement work is troublesome because it must be fixed to the cylinder.
won.

[0004]

According to the present invention, a transfer spiral is provided inside a cylindrical body, and a spiral shaft and a tube of the transfer spiral are divided so as to be intermittent at an intermediate portion thereof, and a spiral shaft on a lower side in a grain transfer direction is provided. Established in
Engage the engaging pin provided on the helical shaft side on the better side
In this case, the split portion of the spiral shaft is interlockably connected so as to be able to be inserted and removed , and the screw on the upper side in the grain transfer direction is provided.
Bearing the end of the axis on the support arm held by the cylinder
And has the engaging pin on the peripheral surface
The nut provided integrally with the tapered pin is
Screw of the helical shaft protruding downward from the kernel in the grain transfer direction
Screwed into the part, and the nut transfer method
The problems of the previous mentioned Ri due to be closed toward poor side was solved.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An example in which one embodiment of the present invention is applied to a grain discharging device of a combine will be described. A threshing device 3 is mounted on one side of a machine base 2 having a traveling device 1 and an operation is performed on the other side. A cabin 4 surrounding the section, an engine 5 and a radiator 6 are disposed near the lower rear of the cabin 4, and an inverted L-shaped grain tank 7 extending from the upper part of the engine 5 and the radiator 6 to the upper part of the threshing device 3. It is mounted on the support frame 10 so as to tilt sideways around the lower discharge spiral 8. Further, in front of the threshing device 3, there is provided a pre-processing device 11 including a cutting device and a grain culm conveying device that rotate up and down around a rear portion.

[0008] The lifting cylinder 1 which is connected to the transfer end of the first gutter of the threshing device 3 and rises to become a grain transfer device.
Numeral 2 penetrates from the bottom plate near the threshing device 3 of the grain tank 7, has a throwing casing 13 in which a throwing blade 13 a is installed at the upper end, is vertically divided at a portion corresponding to the bottom plate, and has a hydraulic cylinder 15. When the hydraulic cylinder 15 is extended, the grain tank 7 pivots outwardly around the discharge spiral 8, and at this time, the frying cylinder 12 separates up and down at the dividing portion, and when the hydraulic cylinder 15 is operated to contract, The grain tank 7 pivots downward and returns to the horizontal position shown by the solid line, and the dividing part of the fryer cylinder 12 is connected.

In the connected state, as shown in FIG. 3, the cut portion of the above-mentioned fried grain cylinder 12 has the lower end of the upper cylinder body 12a on the lower side (upper side in the grain transfer direction). Cylinder 1
2b, the upper end of the lower spiral shaft 16a of the transfer spiral 16 contained therein is fitted with the bearing 1
7, is supported by the lower cylindrical body 12b via the bearing holder 18 and the plurality of support arms 20, and the screw portion 33 of the portion protruding upward from the bearing 17 has an engaging pin 21 on the peripheral surface. A nut 23 having a tapered pin 22 fitted and welded is screwed together. The upper helical shaft 16b is formed of a cylindrical shaft. Projection 25 with which 21 engages
The lower end of the connection tube 26 having an engagement portion and fitted and welded to the outer periphery thereof overlaps the upper tapered surface of the nut 23.

And the bearing holder 18;
The spacer 27 fitted on the lower inner periphery and overlapping the lower surface of the bearing 17 has the lower surface flush with the lower surface of the lower spiral shaft 16a.
The support cup 29 fitted to the lower helical shaft 16a at the lower part of the flange 28 supporting the helical member 7 is welded to the lower transfer spiral 30 and the lower helical shaft 16a, and the support cup 29 is made of felt (made of rayon). The fitting gap between them is completely closed by fitting the soft material 31 and overlapping the lower surfaces of the bearing holder 18 and the spacer 27.

In the above-mentioned combine, when the body is advanced while driving the respective parts, the cutting device cuts the erected cereal culm, and the cereal culm conveying device supplies the cut culm to the threshing device 3 while adjusting the handling depth. The threshing apparatus 3 thresh-processes the spike side in the handling room while nipping and transporting the base of the supplied grain culm by the feed chain and the clamping rail, and threshing material leaked from the receiving net, The grains that have been subjected to the wind and sieve separation and fall into the receiving gutter first are pumped up by the frying cylinder 12 and put into the grain tank 7. At this time, the mid-section of the fryer cylinder 12 is connected as shown in FIG. When the harvesting and threshing is continued and the grain tank 7 becomes full, the machine is brought to a truck or the like parked on a farm road, and the upper part of the discharge auger 32 is raised and rotated to discharge the spout. When the outlet is made to face the carrier bed and the discharge clutch is engaged, the discharge spiral 8 and the lifting spiral in the discharge auger 32 are rotated, and when the shutter on the discharge spiral 8 is opened, the grain tank 7 is opened. Are discharged, discharged and loaded onto a carrier.

When the discharge and loading of the grain progresses and the remaining amount of the hanging part on the right side (see FIG. 2) as viewed from the rear of the grain tank 7 decreases, the hydraulic cylinder 15 is extended, Since the grain tank 7 tilts outward as indicated by a chain line with the discharge spiral 8 as a center, the grains of the portion of the grain tank 7 extending onto the threshing device 3 flow down to the hanging part, and the grain tank 7 Since the bottom plate and the outer plate 7 are V-shaped with the discharge spiral 8 as the lowest point, the entire amount can be reliably discharged and discharged. At that time, the upper part of the frying cylinder 12 is separated from the lower part at the dividing part corresponding to the bottom plate of the grain tank 7 and rises together with the grain tank 7. When the grain discharge is completed, the hydraulic cylinder 15 is contracted and the grain tank 7 is turned back to the position shown by the solid line on the threshing device 3 side, and the lower end of the upper cylinder 12a becomes lower cylinder 12b. , The cylindrical connecting shaft 24 is fitted to the tapered pin 22, and the engaging pin 21 can be overlapped with the projection 25.

Then, as described above, the engaging pin 21 is
25, the contact between the engaging pin 21 and the projection 25 is made.
When the engagement pin 21 is worn out by touch,
The integrated taper pin 22 fits into the nut 23
Since the nut 23 is in contact with the lower spiral shaft 16a,
Easy taper by tightening / removing the screw part 33
-The engagement pin 21 can be replaced together with the pin 22.
The nut 23 also serves as a seal on the upper surface of the bearing 23.
The number of parts is small, the configuration is simple, and assembly is easy.
Becomes easier.

[0012]

[Effect of the invention The present invention is a transport helix 16 and interior to the cylindrical body, and intermittently allow disrupted the helical axis and the cylinder of the transport helix 16 at its intermediate portion, of the grain transport direction downstream side in the spiral shaft 16b side Setting
The engagement provided on the helical shaft 16a on the superior side is
By engaging the mating pin 21, the divided portion of the helical shaft is interlockably connected so as to be insertable and removable.
The end of the spiral shaft 16a on the upstream side in the feeding direction is attached to the cylindrical body 12b.
The supporting arm 20 is supported via the bearing 17.
And a tapered pipe having the engaging pin 21 on the peripheral surface.
The nut 23 provided integrally with the bearing 22
The helical shaft 16 projecting downward from the grain transfer direction
a into the threaded portion 33, and the nut 23
Since the lower side of the grain 17 in the grain transfer direction was closed, the grain
A taper pin provided on the helical shaft 16a on the upper side in the transfer direction
Engagement pin 21 integrally attached to 22 is the grain transfer direction
The engaging portion 2 provided integrally on the lower spiral shaft 16b side
In the case of abrasion due to contact with
Tighten and tighten nut 23 screwed into screw portion 33 of spiral shaft 16a
Replacement is easy by replacing the taper pin 22 by attaching and detaching.
In addition to the simple one, the
Since the socket 23 also serves as a seal for the bearing 17,
The number of parts is small, the configuration is simple, and the assembly is easy.

[Brief description of the drawings]

FIG. 1 is a side view of a combine.

FIG. 2 is a rear view of the same.

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

[Explanation of symbols]

12 Lifting cylinder 12b Cylindrical body 16 Transfer spiral 16a Lower spiral shaft 16b Upper spiral shaft 17 Bearing 18 Bearing holder 20 Support arm 21 Engagement pin 22 Taper pin 23 Nut 25 Projection (engagement part) 33 Screw part

Claims (1)

(57) [Scope of request for utility model registration] 1. A transfer spiral 16 is provided inside a cylindrical body, and a helical shaft and a tube of the transfer spiral 16 are cut off at an intermediate portion so as to be intermittent.
Engaging part 2 provided on spiral shaft 16b on the lower side in the grain transfer direction
5, the engaging pin 21 provided on the spiral shaft 16a on the better side
By engaged, in those removably operatively connected to dividing unit of the helical axis, the grain transport direction upstream side
Of the spiral shaft 16a is supported by the support held by the cylindrical body 12b.
While being supported by the holding arm 20 via the bearing 17,
Integrated with tapered pin 22 having the engaging pin 21 on the surface
A nut 23, which is provided in a fixed manner, is
The screw portion 3 of the spiral shaft 16a protruding downward in the transfer direction
3 and screw the nut 17 onto the bearing 17
A grain transfer device, wherein a lower side surface in a grain transfer direction is closed .