JP2995800B2 - Combine grain discharger - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a combine grain discharging device.

(Prior art)

Conventionally known, JP-A-63-279719, Japanese Utility Model Laid-Open No. 1-12
No. 1339 and Japanese Utility Model Laid-Open No. 1-121340 describe a traveling device provided at a lower position of a body frame, a mowing part provided at a front position of the body frame, and a threshing device provided at a position above the body frame. A grain discharge device of a combine having a discharge auger provided at an upper position of the threshing device, a telescopic device for expanding and contracting the discharge auger, and a storage support device for supporting the discharge auger at a storage position. .

[Problems to be solved by the invention]

Since the known combine is provided with a telescopic device that expands and contracts the discharge auger, at the time of harvesting, a light truck can be loaded on a distant airway, and the discharge auger can be extended and loaded on a light truck bed. After completion, the discharge auger may be stored for a long time, while forgetting to shorten the discharge auger.

As described above, when the vehicle is advanced to perform the next harvesting and threshing operation while keeping the discharge auger long, it collides with various objects, and there is a problem in safety.

Therefore, an object of the present invention is to secure the safety by automatically shortening the discharge auger when the discharge auger is in the storage position.

[Means for solving the problem]

Accordingly, the present invention provides a traveling device 2 provided at a lower position of the body frame 1, a mowing unit 4 provided at a position in front of the body frame 1, a threshing device 3 provided at a position above the body frame 1, A swivelable discharge auger 20 provided at the upper position of the lifting mechanism 19 provided on the body frame 1 side, a telescopic device 34 for linearly expanding and contracting the discharge auger 20, and supporting the discharge auger 20 at a storage position. In the combine grain discharge device having the storage support device 41, when the discharge auger 20 is stored and supported in the storage support device 41 in the extended state, storage detection means 42 capable of detecting the fact is provided, By means 42 the telescopic device 34
Automatically operating the discharge auger 20 to automatically shorten the discharge auger 20, and in the device, a manual telescopic operation tool 37 for manually operating the telescopic device 34 is provided. The tool 37 is a combine grain discharging device that has priority over the storage detection means 42, and
A traveling device 2 provided at a lower position of the body frame 1;
A reaper 4 provided at a position in front of the body frame 1
A threshing device 3 provided at a position above the body frame 1, a swingable discharge auger 20 provided at an upper position of a lifting mechanism 19 provided at the body frame 1, and a linearly extending discharge auger 20. In a combine grain discharging device having a telescopic device 34 for expanding and contracting and a storage support device 41 for supporting the discharging auger 20 at a storage position, a discharge auger clutch operating lever 47 for turning on and off the clutch of the discharging auger 20 is provided. When the discharge auger clutch operating lever 47 is turned off, the extendable device 34 is automatically operated to automatically shorten the discharge auger 20, and the grain discharge device of the combine, and the device, Detecting means 46 for detecting a disengagement operation of the clutch operating lever 47 is provided, and a manual telescopic operation tool 37 for manually operating the telescopic device 34 is provided. Sakugu 37 said sensing means 46
This is a grain discharge device of the combine which gives priority to.

〔The invention's effect〕

According to the first aspect of the present invention, it is possible to prevent the discharge auger 20 from being stored and supported by the storage support device 41 in an extended state, to reduce collision with other objects of the discharge auger 20, and to improve safety. it can.

According to the second aspect of the present invention, the discharge auger 20 can be expanded and contracted in preference to the automatic shortening by the storage detecting means 42, and the operability of the discharge auger 20 can be improved.

According to the third aspect of the present invention, the discharge auger 20 can be automatically shortened at the end of the discharge operation, and it is possible to promptly shift from the shell particle discharge operation to the next operation (for example, the next threshing operation), thereby improving the operation efficiency. Can be improved.

In the invention according to claim 4, the discharge auger 20 can be expanded and contracted in preference to the automatic shortening at the end of the discharging operation,
Operability of the discharge auger 20 can be improved.

[Embodiment of the invention]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. 1 is a body frame, 2 is a traveling device provided at a lower position of the body frame 1, 3 is a threshing device provided at a position above the body frame 1, and 4 is a body frame. 1 is a reaping section provided at a front position.

Reference numeral 5 denotes a weeding body provided at the foremost position of the reaper 4, reference numeral 6 denotes a scraping reel provided above the weeding body 5, and reference numeral 7 denotes a scraping reel 6.
, An auger 8 for collecting the harvested grain stalks, and 9 a transport elevator provided at the rear of the cutting unit 4.

A threshing room 10 is formed in the upper part of the threshing device 3.
Reference numeral 11 denotes a handling cylinder mounted in the threshing chamber 10, reference numeral 12 denotes a handling net that mainly surrounds the lower portion of the handling cylinder 11, reference numeral 13 denotes a wind selection chamber formed below the threshing chamber 10, and reference numeral 14 denotes the wind selection chamber. A swing sorting device provided in 13, 15 is a blower fan that blows air into the wind selection chamber 13, and 16 is 1
Number conveyor 17 is number 2 conveyor.

On the side of the threshing device 3, a grain tank 18 for temporarily storing the grains taken out by the first conveyor 16 is provided.

One end (base) of a discharge auger 20 for discharging the husk grains is mounted on the Glen tank 18 at the lower part of the husk mechanism 19 for husking the grains in the Glen tank 18.
Install. Although not shown, the discharge auger 20 is configured such that the other end (tip) of the discharge auger 20 is rotatable about the axis of the lifting mechanism 19 by a turning mechanism such as a cylinder, and It is attached to the lifting mechanism 19 so as to be vertically movable by a vertical movement mechanism such as a cylinder.

Thus, the discharge auger 20 is divided into a fixed cylinder 21 on one end side (base side) and a movable cylinder 22 on the other end side (distal end side). The movable cylinder 22 is configured to be movable in the transport direction with respect to the fixed cylinder 21 so as to extend and contract the entire length of the discharge auger 20.

In FIG. 2, reference numeral 23 denotes a rotating shaft barrel mounted in the fixed barrel, and reference numeral 24 denotes a fixed spiral blade fixed to the outer periphery of the rotating barrel 23 so as to be immovable. The distal end of the rotary barrel 23 is supported by a bearing 25 provided at the distal end in the fixed barrel.

A spline boss 26 is fixed to a tip portion in the rotary shaft cylinder 23. The base end of the moving rotary shaft 27 is inserted into and engaged with the spline boss 26. The distal end of the movable rotary shaft 27 is supported by a bearing 28 provided at the distal end in the movable cylinder 22.

A plurality of bosses 29 are fitted around the outer periphery of the movable rotating shaft 27 so as to be slidable only in the axial direction of the movable rotating shaft 27. Boss 29
Is engaged with a spline ridge 30 formed on an approximate number of the moving rotary shaft 27. The spline ridge 30 is engaged with the spline boss 26, and the moving rotary shaft 27 and the boss 29 are connected to the rotary shaft cylinder 23.
Rotate with.

The boss 29 has a telescopic spiral wing 31 formed of an elastic member.
Is fixed. Reference numeral 32 denotes a discharge port formed on the lower surface of the distal end portion of the movable cylinder 22, and reference numeral 33 denotes a discharge body fixed to the movable rotary shaft 27 above the discharge port 32.

Reference numeral 34 denotes a telescopic device that expands and contracts the movable cylinder 22. In this embodiment, the telescopic device is constituted by a telescopic cylinder.
The base of 34 is fixed to the outer surface of the fixed cylinder 21, and the tip of the rod 35 of the telescopic cylinder 34 is attached to the outer surface of the base end of the movable cylinder 22.

In FIG. 1, reference numeral 36 denotes a driver's seat provided on the front side of the threshing apparatus 3, and 37 denotes a manual expansion / contraction switch (manual expansion / contraction operating tool) provided on the driver's seat 36. The manual expansion / contraction switch 37 switches the solenoid valve 38 of the expansion / contraction cylinder 34 to "extend (extend)", "stop", or "reduce (reduce)" (FIG. 4). 39 is an extension solenoid, and 40 is a reduction solenoid.

The telescopic cylinder 34 is provided with a detecting means 43 for detecting the length of the discharge auger 20, and the detecting means 43 is provided with the telescopic cylinder 34.
A maximum extension position detection switch 44 and a minimum contraction position detection switch 45 that are turned on / off by the rod 35 are configured.

On the side of the driver's seat 36, there is provided a storage support device 41 for supporting an intermediate portion of the moving cylinder 22 of the discharge auger 20, and a storage switch 42 is provided near the storage support device 41.
(Storage detection means 42) is provided. The storage switch 42, the detecting means 43, and the telescopic cylinder 34 are connected, and the storage switch 42
When the movable cylinder 22 is supported by the storage support device 41 in the extended state, the reducing solenoid 40 of the solenoid valve 38 is automatically turned on, and the telescopic cylinder 34 is automatically reduced.

That is, when the discharge auger 20 is in the extended state, the minimum contraction position detection switch 45 is turned off. When the movable cylinder 22 is supported by the storage support device 41 in the extended state, the storage switch 42 is turned on and the telescopic cylinder is extended. Automatically shrink 34.

The manual expansion / contraction switch 37 is connected to the storage switch 42.
Priority.

FIG. 5 shows a second embodiment in which a driver seat 36 is provided with a discharge auger clutch operation lever 47 for engaging and disengaging the clutch of the discharge auger 20, and a clutch engagement detection switch 46 (near the discharge auger clutch operation lever 47). A sensing means 46) is provided.

The clutch on detection switch 46 is turned on when the discharge auger clutch operation lever 47 is turned off, and the telescopic cylinder is turned on.
The moving cylinder 22 is reduced by reducing 34.

FIG. 6 shows another embodiment of the discharge auger 20, wherein the telescopic spiral blade 31 is formed as a double spiral of a telescopic spiral blade 31a and a telescopic spiral blade 31b, and the telescopic spiral blade 31a and the telescopic spiral blade 31b are each shaped memory. It is formed by an alloy. The telescopic spiral blades 31a are formed at a large pitch during molding, and the telescopic spiral blades 31b are formed at a small pitch during molding.

Then, when power is supplied to the telescopic spiral wing 31a, the telescopic spiral wing 31a
When the movable cylinder 22 is expanded to restore the original large pitch and energized to the telescopic spiral wing 31b, the telescopic spiral wing 31b is restored to the original small pitch and the movable cylinder 22 is reduced. Therefore, the bosses that fix the base ends of the telescopic spiral wing 31a and the telescopic spiral wing 31b are fixed.
29 is fixed to the moving rotation shaft 27.

 Next, the operation will be described.

The present invention is configured as described above, travels with the storage support device 41 on the side of the driver's seat 36 supporting the middle part of the moving cylinder 22 of the discharge auger 20 in the reduced state, and when arriving at the field, the aircraft is advanced. , The culm is scraped by the scraping reel 6, the culm is cut by sliding the cutting blade 7, the culm is supplied to the threshing device 3, and threshing is performed in the threshing device 3. When a certain amount of grain is threshed in the Glen tank 18 by cutting and threshing, the aircraft is moved to a light truck while waiting near the field.

Next, when the discharge auger 20 is moved up by the auger vertical cylinder, and then the mounting portion of the fixed cylinder 21 is rotated around the lifting mechanism 19 by the rotating cylinder, the discharge port 32 of the movable cylinder 22 is moved to an arbitrary position. To position. Next, when the extension solenoid 39 of the solenoid valve 38 is turned on by operating the manual extension switch 37, the rod 35 of the extension cylinder 34 is extended, and the movable cylinder is extended.
22 extends with respect to the fixed cylinder 21 to position the discharge port 32 of the movable cylinder 22 at a position above the tank of the light truck.

In this state, when the lifting mechanism 19 and the discharge auger 20 are operated, the lifting mechanism 19 raises the grains in the Glen tank 18 and the fixed spiral blades of the rotary shaft cylinder 23 that rotates the raised grains.
Conveyed by 24.

The rotation of the rotary shaft barrel 23 rotates the moving rotary shaft 27 in the movable barrel 22 to rotate the bosses 29, and the telescopic spiral wings 31 fixed to each boss 29 rotate. Is conveyed by the telescopic spiral wings 31 and discharged from the discharge port 32 to the tank of the light truck.

When the work is completed and the interior of the Glen tank 18 is emptied, the middle part of the moving cylinder 22 of the discharge auger 20 is stored and supported by the storage support device 41 to prepare for the next threshing work. In some cases, the moving cylinder 22 may be forgotten to be reduced.

Therefore, the expansion / contraction cylinder 34 is provided with a detecting means 43, a maximum extension position detection switch 44 and a minimum position detection switch 45 are provided in the expansion / contraction cylinder 34, and the storage switch 42 is provided near the storage support device 41. After the discharging operation, if the discharging auger 20 is stored in the storage support device 41 in the extended state after the discharging operation, the retracting position detecting switch 45 remains off, and the storing switch 42 is turned on to extend and retract. Cylinder
34 is automatically contracted (shortened), and when the minimum position detecting switch 45 is turned on, the telescopic cylinder 34 is contracted (shortened).
To stop automatically.

Thus, when the discharging auger 20 is stored and the discharging operation of the harvesting grain is completed, the cutting and threshing operation and the discharging operation are repeated as described above.

In the second embodiment shown in FIG. 5, a clutch engagement detection switch 46 is provided in the driver's seat 36. The clutch engagement detection switch 46 is turned on when the discharge auger clutch operation lever 47 is turned off, and the solenoid valve 38 is automatically turned on. Reduced solenoid 40
Is turned on and the telescopic cylinder 34 is automatically reduced (shortened).
The moving cylinder 22 is reduced (shortened), and when the moving cylinder 22 reaches the maximum contraction position, the minimum contraction position detection switch 45 stops the contraction (shortening) of the telescopic cylinder 34, and the moving cylinder 22 is contracted (shortened). ) Prevent forgetting to do.

When the discharge auger clutch operation lever 47 is turned off, the clutch engagement detection switch is turned on, but the manual expansion switch 37 has priority over the relationship between the manual expansion switch 37 and the clutch engagement detection switch 46. During the positioning of the movable cylinder 22 by the 37, even if the discharge auger clutch operation lever 47 is turned off, the movable cylinder 22 can be extended and contracted by the manual extension switch 37, so that there is no problem.

Also, during the discharging operation, the clutch engagement detection switch is off, and when the discharging operation is completed and the next threshing operation is performed, the clutch engagement detection switch is turned on by operating the discharge auger clutch operation lever 47 to be turned off. Then, the moving cylinder 22 is automatically reduced (reduced). Therefore, the discharge auger 20 can be stored safely and smoothly.

In the embodiment of FIG. 6, the telescopic spiral wing 31 is connected to the telescopic spiral wing 31a.
And a spiral spiral wing 31b.
1a and the telescopic spiral wing 31b are each formed of a shape memory alloy, and the telescopic spiral wing 31a is formed at a large pitch during molding,
Since the telescopic spiral wing 31b is formed at a small pitch during molding,
When the telescopic spiral wing 31a is energized and heated, the telescopic spiral wing 31a is restored to the original large pitch and the moving cylinder 22 is extended (extended).
When the telescopic spiral wing 31b is energized and heated, the telescopic spiral wing 31b is restored to the original small pitch, and the moving cylinder 22 is reduced (shortened).
By energizing one of the telescopic spiral wing 31a and the telescopic spiral wing 31b, the movable cylinder 22 is expanded and contracted to perform positioning.

When the retract switch 42 is turned on, the telescopic spiral wing 31b is energized to automatically reduce (shorten) the movable cylinder 22.
Let it.

[Brief description of the drawings]

1 is an overall side view, FIG. 2 is a vertical sectional side view of a main part, FIG. 3 is a vertical side view of a main part in a shortened state, FIG. 4 is a circuit diagram, FIG. 5 is a second embodiment diagram, and FIG. The figure shows the third embodiment, FIG. 7 and FIG.
FIG. DESCRIPTION OF SYMBOLS 1 ... frame, 2 ... traveling device, 3 ... threshing device, 4 ... cutting unit, 5 ... weed plant, 6 ... scraping reel,
7 cutting blade, 8 auger, 9 transport elevator, 10
... threshing room, 11 ... handling cylinder, 12 ... handling net, 13 ... wind selection room,
14 ... swinging sorting device, 15 ... blowing fan, 16 ... 1st conveyor, 17 ... 2nd conveyor, 18 ... Glen tank, 19
... Lifting mechanism, 20 ... Discharge auger, 21 ... Fixed cylinder, 22 ...
… Movable barrel, 23… Rotary barrel barrel, 24 …… Fixed spiral wing, 25 ……
Bearing, 26 ... Spline boss, 27 ... Movable rotating shaft, 28 ...
... Bearing, 29 ... Boss, 30 ... Spline ridge, 31, 31
a, 31b… telescopic spiral wing, 32… discharge port, 33… discharge body,
34 ... Telescopic cylinder, 35 ... Rod, 36 ... Driver's seat,
37 Manual switch (manual telescopic operation tool), 38 solenoid valve, 39 extension solenoid, 40 reduction solenoid, 41 storage support device, 42 storage switch (storage detection means), 43 .. Detecting means, 44… most extension position detection switch, 45… most contraction position detection switch, 46… clutch on detection switch (detection means), 47… discharge auger clutch operation lever.

Claims (4)

(57) [Claims] A traveling device provided at a lower position of the body frame, a mowing portion provided at a front position of the body frame, a threshing device provided at a position above the body frame; A swivelable discharge auger 20 provided at an upper position of a lifting mechanism 19 provided on the body frame 1 side.
A telescopic device 34 for linearly expanding and contracting the discharge auger 20
In the combine grain discharge device having a storage support device 41 for supporting the discharge auger 20 in a storage position,
The storage support device 41 with the discharge auger 20 extended.
Storage detection means that can detect when stored and supported
A combine grain discharging device provided with 42, wherein the retractable device 34 is automatically operated by the storage detecting means 42 to automatically shorten the discharging auger 20. 2. The combine grain discharging device according to claim 1, further comprising: a manual expansion / contraction operation tool 37 for manually operating said expansion / contraction device 34;
Combine grain discharger with priority. 3. A traveling device 2 provided at a lower position of the body frame 1, a cutting unit 4 provided at a position in front of the body frame 1, a threshing device 3 provided at a position above the body frame 1, A swivelable discharge auger 20 provided at an upper position of a lifting mechanism 19 provided on the body frame 1 side.
A telescopic device 34 for linearly expanding and contracting the discharge auger 20
In the combine grain discharge device having a storage support device 41 for supporting the discharge auger 20 in a storage position,
A discharge auger clutch operation lever 47 for engaging and disengaging the clutch of the discharge auger 20 is provided, and when the discharge auger clutch operation lever 47 is turned off, the expansion / contraction device 34 is automatically operated to automatically shorten the discharge auger 20. Combine grain discharging device. 4. A combine grain discharging device according to claim 3, further comprising: sensing means for sensing a disengagement operation of said discharge auger clutch operation lever, and a manual expansion and contraction operation tool for manually operating said expansion and contraction device. Provided, the manual telescopic operating tool
37 is a combine grain discharging device which is given priority to the sensing means 46.