JP2000014233A - Extendable grain discharge apparatus of combine harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the subject apparatus securing the maximum extended length despite being equipped with a stationary carrying cylinder and a mobile carrying cylinder each with a limited length. SOLUTION: This extendable grain discharge apparatus 2 designed to discharge, out of the combine harvester, grains reserved in the grain tank on the combine harvester, is made up of a stationary carrying cylinder vertically turnably pivoted on the top of a grain elevation cylinder 3 equipped on the grain tank and a mobile carrying cylinder extendably linked to the stationary carrying cylinder; wherein the mobile cylinder is designed to be mobile in the cylindrical direction through being subjected to transmission by the aid of an extendably driving unit 5 linked thereto via a moving device 4, while the stationary carrying cylinder is designed to be vertically movable by the aid of a relevant hydraulic cylinder 6 interposed between the stationary carrying cylinder and the grain elevation cylinder 3; and the moving device 4 can be moved from the mounting end P on the mobile carrying cylinder side of the hydraulic cylinder 6 to a position near the grain elevation cylinder 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combine-type telescopic grain carrying device, and belongs to the technical field of agricultural machinery.

[0002]

2. Description of the Related Art Conventionally, a combine is provided with a threshing device for threshing a harvested culm and a Glen tank for storing and storing grains after threshing. And And the Glen tank is
When the grains that are successively stored as the work progresses become full, the stored grains are collected using a series of grain unloading devices including a frying device and a discharging device provided at the end. It is configured to carry it out to the tank of a waiting truck.

[0003] The grain discharging device is configured such that a tip-side discharging cylinder provided with a grain discharge port is inserted into and fitted to the base-side discharging cylinder so that it can freely expand and contract, and slides. The grain discharge port is moved and adjusted in the near and far directions so that it can be easily fitted to the tank of the truck.

[0004]

This type of telescopic grain discharging device of this type comprises a fixed transport cylinder connected to the tip of a fried grain cylinder provided in a Glen tank, and a sliding sliding cylinder fixed to the fixed transport cylinder. The movable transport cylinder is connected to a telescopic driving device and moves in the cylinder direction to expand and contract. The telescopic grain unloading device is advantageous because the longer the extension distance, the more it can be unloaded to a wide range of unloading locations.However, the extension length of the fixed transport tube and the movable transport tube of a limited length is limited. Issues.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a telescopic grain unloading device which can secure a maximum extension length while having a fixed transport tube and a movable transport tube of limited length.

[0006]

SUMMARY OF THE INVENTION The present invention takes the following technical means in order to solve the above-mentioned problems. That is, in a telescopic grain unloading device 2 for unloading grains stored in a combine grain tank 1 out of the machine, the grain unloading device 2 is provided above the graining cylinder 3 provided in the Glen tank 1. A fixed transfer tube 2a pivotally attached to the fixed transfer tube 2a, and a movable transfer tube 2b connected to the fixed transfer tube 2a so as to extend and contract freely. The fixed transport cylinder 2a is configured to be movable vertically in the cylinder direction by being transmitted to the telescopic drive device 5 connected to the stationary transport cylinder 5 and to be movable up and down by interposing an elevation hydraulic cylinder 6 between the fixed transport cylinder 2a and the lifting cylinder 3. , The moving device 4 includes the moving transport tube 2b.
Is a retractable grain unloading device of a combine, which is configured to be able to reduce and move from the mounting end P of the lifting hydraulic cylinder 6 on the side of the movable transfer cylinder 2b to a position closer to the lifting cylinder 3 when is at the reduction position. is there.

[0007]

As described above, the present invention is constructed as described above. Therefore, when the grain tank is full and the operation for carrying out the grain transfer is started, the telescopic type grain carry-out device is fixedly transported with a limited length. Despite being a tube and a moving conveyance tube, it has a feature that the elongation distance can be increased and the grain can be carried out to a position far away from the combine.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First, the configuration will be described.
As shown in FIG. 4, the combine is mounted on a traveling body 8 provided with a crawler 7 molded of rubber as a raw material, and a threshing device 9 is provided.
Is mounted, and a mowing pre-processing device 10 is provided on the front side thereof.

The grain tank 1 is mounted on the above-mentioned traveling vehicle body 8 in parallel with the side of the above-mentioned threshing device 9, and threshing carried from the threshing device 9 via the first threshing device 11. -It is configured to store the grains after sorting.
Although not shown in the drawings, the Glen tank 1 is provided with a discharge spiral mounted on the bottom thereof as is well known in the art, and one end of the discharge spiral is extended to the lower part of the fryer cylinder 3. Then, it is connected to the lower part of the deep-fried helix 12 that is provided inside.

[0010] Then, as shown in FIG.
On the upper part of the fixed cylinder 3a fixed to the lower part of the Glen tank 1,
The swivel cylinder 3b is provided so as to be freely swingable and connected to the swivel cylinder 3b.
Is provided with a turning gear 13 attached thereto. And
The turning motor 14 is operated by a turning switch (not shown), and is configured to transmit the turning gear 13 via a driving gear 15. In this case, the turning cylinder 3b is turned by the turning switch so that the turning motor is driven forward and reverse.
The left turn or the right turn can be performed by the tab 14.

As shown in FIG. 3, the lifting hydraulic cylinder 6 has a lower part of the cylinder pivotally connected to an upper part of the fryer cylinder 3 and an upper part of the piston pivotally connected to an end of a swing arm 16. It is connected and configured. The swing arm 16 is connected to the center of rotation of the fixed transfer tube 2a rotatably connected to the upper part of the fryer cylinder 8 in the vertical direction, as described later, and moves up and down. It has a configuration. The lifting hydraulic cylinder 6 is configured to expand and contract by pressurized oil supplied by operating a lifting switch (not shown), and to vertically adjust the grain discharge device 2 connected as described above.

Next, the grain discharging device 2 will be described. First, as shown in FIG. 1 and FIG. 2, the fixed transfer tube 2a has a base connected to the upper part of the frying tube 3 and a front end portion extended outwardly. Is internally provided with a transport spiral 17 connected to the above-mentioned hoisting spiral 12 to transport the grains inherited from the hoisting cylinder 3.

The movable transfer tube 2b is provided with a grain discharge port 18 opened at the front end thereof, and the base portion side is slidably inserted from the front end side of the fixed transfer tube 2a and fitted and connected. I have. Next, as shown in FIGS. 1 and 2, the telescopic spiral 19 has a tip portion at the grain discharge port 1 in the movable transport tube 2 b.
8, the drive shaft 2 having a rear portion extended toward the fixed transfer cylinder 2a and slidably inserted into the shaft of the transfer spiral 17.
0 is provided on a shaft, and a large number of spiral single bodies 1
9a, 19b, 19c... Are slidably fitted. And the expansion and contraction spiral 19 is a single spiral 19a,
The drive shafts 19b and 19c are freely slidable in the axial direction with respect to the drive shaft 20 to be in a superimposed state (see FIG. 1), or are extended to be in a connected state (see FIG. 2) and can expand and contract. And is configured to carry the grain while being rotated and driven.

Next, the telescopic drive device 5 is shown in FIGS.
As shown in (1), a helical shaft 21 whose base is supported on the upper side of the hoisting cylinder 3 is forcibly driven by a telescopic control motor 22 connected to the end. And the moving device 4
Is provided so as to engage with the helical shaft 21 and forcibly move in the axial direction with driving, and is connected to the base side of the movable transfer cylinder 2b. The limit sensors S ₁ and S ₂ are provided above the respective ends of the helical shaft 21 in the telescopic drive device 5, and when the moving device 4 comes into contact, a detection signal is input to the controller to control the telescopic operation. Motor 2
2 is automatically stopped.

Although not specifically shown, the telescopic control motor 22 is driven in the forward or reverse direction by turning on a switch provided on the operation panel of the cockpit, and the helical shaft 21 is rotated. Is driven to rotate, and the above-described limit sensor S
Are configured to be automatically stopped by _1, S _2. In this case, when the helical shaft 21 rotates forward, the telescopic drive device 5 extends the movable transport cylinder 2b via the engaged movable device 4,
If it is reversed, it is configured to forcibly move in the reduction direction.

In this way, the movable transfer cylinder 2b expands and contracts along the fixed transfer cylinder 2a in a state fitted thereto.
The position of the grain discharge port 18 at the tip can be adjusted while selecting and dropping the grain drop position by moving the grain discharge port 18 away from or close to the fluffing cylinder 3 at the base. Then, as shown in FIG. 1, when the movable transfer cylinder 2b is reduced to the maximum and moved to the base side of the fixed transfer cylinder 2a as shown in FIG. 16 (part connected to 16) to the fryer cylinder 3 side.
In this case, the support roller 23 provided at the end of the movable transfer cylinder 2b is also configured to be able to move from the position of the mounting end P of the lifting hydraulic cylinder 6 to the hoisting cylinder 3 side.
With such a configuration, the grain discharging device 2
When extended to the maximum, it can be extended for a long time, so that it is possible to cope with a wide range of grain discharge positions.

Reference numeral 24 denotes a receiver. Next, a few modifications of the telescopic drive device 5 will be described based on the embodiments shown in FIG. First, the mounting support 25 is shown in FIG.
As shown in the figure, a bearing device 26 bearing the tip of the helical shaft 21 is fixedly supported, and a roller arm 28 bearing a roller 27 is fixedly provided at the tip of the bearing device. the limit switch S ₂ of elongated side mounting support, further, the base end portion connected a in - are configured by connecting the distal end of the arm 29.
The connecting arm 29 has a base end connected to and supported by the body side (the telescopic control motor 22 side).

The roller 27 is provided so as to be able to roll on the upper surface of the movable transfer cylinder 2b which moves in a telescopic manner, and supports the telescopic drive unit 5 on the distal end side. The roller 27 is, as in the embodiment shown in FIG.
When the upper surface of the movable transport cylinder 2b is rolled as a pair consisting of a roller 27 and a right roller 27 ', vibration in the left-right direction can be prevented and the distal end of the telescopic drive device 5 can be stably supported. be able to.

With the above structure, the limit switch S ₂ is supported integrally with the bearing device 26 of the helical shaft 21 via the mounting support 25, so that the vibration system becomes the same and the limit switch S ₂ comes into contact with the moving device 4. The accompanying switching becomes stable. Then, as shown in FIG. 5, the moving device 4 includes an engaging pin 4a that engages between the helical pitch 21a and the helical pitch 21b of the helical shaft 21, a transmission portion 4b connected to the movable transport cylinder 2b, are composed of a pressing portion 4c for pressing the limit switches S _1, S _2. Then, the engagement pin 4a
The "play" when engaged between the spiral pitch 21a and the spiral pitch 21b is determined by the limit switch S ₁ ,
And a configuration to retain within the ON operation of the S _2. Thus, the engagement pin 4a is connected to the limit switches S ₁ and S ₂
ON even if you move within the "play" range with
Is secured, and the presence of the above-mentioned "play" is advantageous in assembling in which work can be easily performed in the assembling process.

When the engaging pin 4a is configured to engage the helical shaft 21 from an oblique direction in a front view (see FIG. 8) as in the embodiment shown in FIGS. It will be easier. In the case of the embodiment shown in FIGS. 9 to 11, the engagement pin 4a is configured to be detachable from the transmission portion 4b by the snap pin 30. in this way,
If the moving device 4 is configured so that the engaging pin 4a can be easily attached to and detached from the transmission portion 4b by inserting and removing the snap pin 30, when the trouble occurs on the driving portion side and the moving portion 4 cannot move, By extracting 4a, the movable transport cylinder 2b can be moved to the grain discharge position while expanding and contracting by manual operation.

Next, the telescopic control motor 22 and the spiral shaft 21
The mounting configuration will be described with reference to FIGS. First, the motor mounting plate 31 is fixed to the mounting portion 31a having a plurality of screw holes by welding a bearing portion 31b for bearing the base of the helical shaft 21 to the mounting portion 31a. Telescopic control motor 22 integrated with deceleration unit
And the helical shaft 21 is supported as a bearing on the front bearing portion 31b to form an integral structure. The support plate 32 on the fuselage side is provided with a plurality of screw holes and a mounting hole 33 for inserting the bearing portion 31b, and a base end portion of the fixed transfer cylinder 2a is integrally fixed on the lower side. I have. Then, the motor mounting plate 31 is assembled according to the arrow in FIG. 12 and configured as shown in FIG.

With this configuration, the helical shaft 21 and the telescopic control motor 22 are previously integrated with the telescopic control motor 22 in a sub-assembly step, and then the whole is assembled. No misalignment occurs, and no adjustment or the like is required after the fact. When the telescopic control motor 22 and telescopic drive device 5 are covered with an integral cover 35 as shown in FIG. 14, the design value can be increased and the commercial value can be increased.

Next, the operation will be described. First,
The engine is started and the crawler 7 is transmitted to drive the traveling body 8 while driving the rotating parts of the body. Then, the culm of the field is cut by the pre-cutting treatment device 10,
It is conveyed and supplied to the threshing device 9. And the culm is
After being subjected to the threshing process, the selected and carefully selected grains are fried by the first fryer 11 and sequentially supplied to the Glen tank 1 for storage.

In this way, as the threshing operation proceeds, the grain stored in the grain tank 1 reaches a certain amount after the threshing operation, and the grain is detected by a full sensor provided inside the tank. An alarm is issued and the operation moves on to unload the grains. First, the operator moves the traveling vehicle body 8 to the ridge and approaches the truck waiting on the farm road, and operates the elevation switch, the turning switch, and the switches of the telescopic control motor 22. .

Then, the grain discharge device 2 is turned by the rotating motor 1
4 and the hydraulic cylinder 6 and the telescopic drive unit 5 to move to the target carry-out position.
8 is positioned above the truck tank to prepare for the grain discharge operation. In this case, the telescopic drive device 5 operates the telescopic control motor 22 by operating the switch from the cockpit as described above.
To forcibly move the engaged moving device 4 forward (toward the distal end) while rotating the spiral shaft 21 forward. Then, the moving device 4 is connected to the moving transfer cylinder 2 that is integrally connected.
While the b is extended forward with respect to the fixed transport cylinder 2a, the grain discharge port 18 at the front end is adjusted to the position above the tank of the truck. At this time, the moving device 4
As shown in, reaches the vicinity of the end portion of the helical shaft 21 is rotated, the limit sensor in contact with the S ₂ and expansion control mode - stopping the movement of the motor 22 and stopped automatically.

In this way, when the grain discharge device 2 completes the positioning of the grain discharge port 18 and operates the discharge lever to enter, the grain discharge device 2 at the bottom of the Glen tank 1 moves the grain discharge cylinder 3 from the discharge spiral. The spiraling screw 12 in the inside, the transporting spiral 17 in the fixed transporting cylinder 2a, and the telescopic spiral 19 in the movable transporting cylinder 2b via the drive shaft 20 are transmitted to start rotation. Then, the grains in the Glen tank 1 are moved from the fried grain 3 to the fixed transport cylinder 2a.
And then transferred to the moving conveyance tube 2b, discharged from the grain discharge port 18 to the outside of the machine, and carried out to a truck tank.

In carrying out the above-described grain carrying-out work, the grain carrying-out device 2 moves the portion of the moving device 4 and the support roller 23 to the upper mounting end of the lifting / lowering hydraulic cylinder 6 in the state of being reduced to the shortest. Frying cylinder 3 so that it can be located at the base side from P
, It is possible to extend the length when extended to the maximum length as much as possible, despite the limited fixed transfer tube 2a and movable transfer tube 2b. Therefore, the grain discharging device 2 is characterized in that the movement adjustment range is widened and the effective grain discharging operation can be performed. Further, the supporting roller 2
No. 3 has an advantage that the movable transport cylinder 2b can be reliably supported even at the time of the maximum extension.

When a series of grain unloading operations is completed, the grain unloading device 2 reversely operates the telescopic control motor 22 to fix the movable transport cylinder 2b used in the extended state. It is reduced to the side of the transport cylinder 2a, returned to the upper part of the threshing device 9, and stored in a standby position where it is supported by the receiver 24.

[Brief description of the drawings]

FIG. 1 is a cutaway side view of an embodiment of the present invention.

FIG. 2 is an embodiment of the present invention, which is a cutaway side view.

FIG. 3 is a side view, partially broken away, of the embodiment of the present invention.

FIG. 4 is a side view of the embodiment of the present invention.

FIG. 5 is an enlarged internal view of the embodiment of the present invention.

FIG. 6 is a front view of the embodiment of the present invention.

FIG. 7 is a side view of the embodiment of the present invention.

FIG. 8 is a front view of the embodiment of the present invention.

FIG. 9 is a side sectional view of the embodiment of the present invention.

FIG. 10 is a plan view of the embodiment of the present invention.

FIG. 11 is a front sectional view of the embodiment of the present invention.

FIG. 12 is a perspective view of the embodiment of the present invention.

FIG. 13 is a side sectional view of the embodiment of the present invention.

FIG. 14 is a side view of the embodiment of the present invention.

[Description of Signs] 1 Glen tank 2 Grain unloading device 2a
Fixed transport cylinder 2b Mobile transport cylinder 3 Frying cylinder 4
Moving device 5 Telescopic drive device 6 Elevating hydraulic cylinder.

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2B396 JA04 JC07 KA01 KA02 KE03 LA07 LA17 LE02 LE03 LE04 LE09 LE18 LR02 LR08 LR13 LR19 MA05 MA07 MC02 MC13

Claims (1)

[Claims] 1. A telescopic grain unloading device 2 for transporting grains stored in a grain tank 1 of a combine outside the machine, wherein the grain unloading device 2 is a fry cylinder provided in the Glen tank 1. 3, a fixed transfer tube 2 a pivotally attached to the vertical direction and a movable transfer tube 2 b connected to the fixed transfer tube 2 a so as to be freely expandable and contractible. The fixed transfer tube 2a is configured to be freely movable in the tube direction by being transmitted to a telescopic drive device 5 connected via the shaft 4, and can be moved up and down by interposing a lifting hydraulic cylinder 6 between the fixed conveyance tube 2a and the hoisting cylinder 3. And the moving device 4 is provided with the moving transport tube 2b.
The retractable grain unloading device of a combine, wherein the retractable grain discharging device is configured to be able to reduce and move from the mounting end portion P of the lifting hydraulic cylinder 6 on the side of the movable transfer cylinder 2b to a position closer to the lifting cylinder 3 when is in the reduced position.