JP2001128537A - Elongating and telescopic auger in combine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable that a movable conveying pipe moves to an objective position smoothly on discharging cereal grains becoming full in a grain tank to the out side of the machine when a cereal grain-conveying out auger is housed in an auger receiver by constituting the cereal grain-conveying out auger with a fixed conveying pipe and movable conveying pipe capable of being moved in its longitudinal direction. SOLUTION: This combine is provided by installing a grain tank 3 for storing the cereal grains temporarily, a cereal lifting up pipe 4 for discharging the cereal grains stored temporarily in the above grain tank 3 and a cereal grain- conveying out auger 5 on a traveling vehicle body 2 having a traveling device 1. The elongating and contracting auger device in the combine is provided by constituting the above auger 5 with a fixed conveying pipe 6 and a movable conveying pipe 7 fitted with the above fixed conveying pipe 6 and moving as elongating and contracting in its longitudinal direction, and also constituting the position of the cereal grain-discharging port 9 of the auger 5 against the grain-lifting up pipe 4 as exchangeable in the traveling for working in a field and traveling on a road, when the above cereal grain-discharging auger 5 is housed to the auger receiver 8.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a retractable auger device for a combine, 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
With the progress of the work, when the grains that are sequentially stored are full, the stored grains are stored in a tank of a truck waiting by using a filing device and a discharge auger from the interior discharge spiral. It is designed to be carried out.

[0003] The unloading auger is provided such that a movable transfer cylinder at the tip end having a grain discharge port is slidably inserted and fitted into a fixed transfer cylinder at the base side, and a grain discharge port at a transfer end. Is configured to be able to expand and contract in the perspective direction.

[0004]

In the telescopic auger apparatus, the work is performed by deciding a carry-out place by adjusting a grain discharge port at a transfer end of a movable transfer cylinder to a tank of a truck. When the grain export auger is stored in the auger tray during traveling, the position of the grain discharge port of the grain export auger with respect to the fryer is short, so when discharging at the end of the truck, There has been a problem that it takes time for the position of the grain discharge port of the grain carrying auger to extend to a predetermined location.

[0005]

SUMMARY OF THE INVENTION The present invention takes the following technical means in order to solve the above-mentioned problems. That is, according to the first aspect of the present invention, the grain tank 3 for temporarily storing the grains on the traveling vehicle body 2 having the traveling device 1 and the grain-lifting for discharging the grains temporarily stored in the grain tank 3 A combine provided with a cylinder 4 and a grain carrying auger 5, wherein the grain carrying auger 5 is fitted to the fixed carrying cylinder 6 and the fixed carrying barrel 6, and a movable carrying cylinder 7 that moves and expands and contracts in the longitudinal direction. In storing the grain discharge auger 5 in the auger receiver 8, the grain discharge of the grain discharge auger 5 with respect to the unloading cylinder 4 is performed during the work traveling in the field and the traveling on the road. This is a combine extendable auger device configured to change the position of the outlet 9.

According to the second aspect of the present invention, when the grain discharge auger 5 is stored in the auger receiver 8, the position of the grain discharge port 5 of the grain discharge auger 5 with respect to the fryer cylinder 4 is:
2. The combine-type telescopic auger device according to claim 1, wherein the traveling travel time in the field is longer than the traveling time on the road.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION
Although not specifically shown, as conventionally known,
It is mounted on the traveling vehicle body 2 in parallel with the side of the threshing device, and is configured to be able to store the grain after threshing and sorting, which is conveyed from the threshing device via the first threshing device. And
As shown in FIG. 1, the discharge spiral 10 is mounted on the bottom of the Glen tank 3 so as to be mounted on the shaft. The start end is connected to a transmission shaft 11 outside the machine via a clutch device 12, and the end is connected to the lifting cylinder 4 And is connected to the lower end of the fried spiral 13 inside.

A grain carrying auger 5 is fixedly transported to the upper part of the fried grain barrel 4 so as to be rotatable up and down.
, And a movable transfer cylinder 7 connected to the pipe. The configuration will be specifically described below.

First, as shown in FIG. 1, the fixed transporting cylinder 6 has a base connected to the upper part of the above-mentioned frying cylinder 4 and a distal end extended outwardly. Is internally provided with a transport spiral 14 connected to the above-mentioned frying spiral 13 to transport the grains inherited from the frying cylinder 4.

As shown in FIG. 1, the movable transport cylinder 7 is provided with a grain discharge port 9 opened at the front end, and the base side is provided with
The fixed transfer tube 6 is inserted and fitted from the front end side and connected slidably.

Next, as shown in FIG. 1, the telescopic spiral 15 has a front end portion supported above the grain discharge port 9 in the movable transfer tube 7 and a rear portion extended toward the fixed transfer tube 6. Transmission shaft 16 slidably inserted into the shaft of the conveying spiral 14
The transmission shaft 16 is provided with a large number of single spirals 17.
Are slidably fitted to each other so that the distance between them can be adjusted.

As shown in FIG. 2, the spiral single body 17 has a bearing boss 18 which is slidably fitted to the transmission shaft 15.
A helical portion 20 is attached to the outer periphery of the device by an attachment member 19 formed in a substantially semi-cylindrical shape. And the bearing boss 18 is formed shorter than the conventional type as shown in FIG.
A (dimensions of the bearing boss 18 of the present invention) <B (dimensions of the conventional bearing boss). Therefore,
As shown in FIG. 4, when the spiral portion 20 comes closest to the adjacent spiral portion 20 ′ (see the left part of FIG. 4), the spiral single body 17 is spaced apart from the adjacent bearing boss 18 ′ to make contact. Not formed in short length. The bearing boss 18 is provided with a spacer projection 21 at an end thereof to maintain a space between adjacent bearing bosses 18 '. Reference numeral 22 denotes a spiral locking body, which has a configuration in which the adjacent spiral portions 20 'are locked to prevent detachment (the spiral portions 20 are connected to each other even if the spiral single bodies 17 are maximally separated).

The spiral single body 17 thus configured is fitted to the transmission shaft 16 having a rectangular axis in the rotational direction, and is fitted in the axially freely slidable state. It constitutes a series of telescopic spirals 15.

Next, as shown in FIG. 1, the telescopic drive unit 23 connects the base end of the helical shaft 25 to a telescopic control motor 24 mounted at the upper position of the fryer 4 via a reduction gear. And forced driving. And the moving device 26
Is provided so as to be forcibly moved in the axial direction via a transmission pin engaged with a spiral groove of the spiral shaft 25, and is integrally connected to a base side of the movable transfer cylinder 7. ing.
As shown in FIG. 1, the expansion / contraction driving device 23 has limit sensors S1 and S2 on the reduction side and the expansion side, respectively, and automatically stops the expansion / contraction control motor 24 when the moving device 26 reaches. I have.

Although not specifically shown, the telescopic control motor 24 moves in the forward or reverse direction based on the ON operation of a switch (telescopic switch) provided on the operation panel of the cockpit. When the helical shaft 25 rotates forward, the engaged moving device 2 is driven.
When the movable transfer cylinder 7 is extended via the base 6 and reversely rotated, the movable transfer cylinder 7 is forcibly moved in the contraction direction.

In this way, the movable transfer cylinder 7 is extended and contracted along the fixed transfer cylinder 6 in a state fitted thereto, and the position of the grain discharge port 9 at the front end portion is adjusted to the base grain discharge port. For 4,
It is configured so that the grain drop position can be selected by adjusting the distance or approach distance.

In FIG. 1, reference numeral 27 denotes a lifting hydraulic cylinder, 28 denotes a turning motor, 29 denotes a driving gear, and 30 denotes a turning gear. Then, as shown in FIG. 1, the support roller 31 is provided on the lower part of the base position of the movable transport cylinder 7 so as to be supported by a shaft.
The configuration is such that the peripheral surface of the fixed transport cylinder 6 is supported while rolling. Further, a guide wheel 32 is provided above the base position of the movable transfer cylinder 7, and a guide rail 33 for guiding the guide wheel 32 is provided in the longitudinal direction of the fixed transfer cylinder 6. Specifically, as shown in FIG. 5, the guide wheel 32 includes a left guide wheel 32a and a right guide wheel 32b, and is connected to each other by a shaft 32c. The guide rail 33 includes a left guide rail 33a provided outside the left guide wheel 32a and a right guide rail 33b provided outside the right guide wheel 32b.

Further, the shape of the contact surface of the left guide wheel 32a and the right guide wheel 32b with respect to the fixed transfer cylinder 6 is as follows.
It is configured so as to conform to the substantially outer peripheral surface shape of the fixed transport cylinder 6.
Therefore, the movable transfer cylinder 7 is about to rotate in the circumferential direction.
That is, the decrease in the swing is significantly reduced.

When the combine constructed as described above is advanced while working, the planted grain culm is cut off by a cutting device 34, which is a well-known combine operation, and then transported to the starting end of a threshing device 35. Then, while being conveyed by the feed chain 36, threshing and sorting are performed. The grains selected by threshing by the threshing device 35 are temporarily stored in the Glen tank 3, and when the grains in the Glen tank 3 are full, the grain discharge auger 5 is separated from the auger receiver 8,
The grains are discharged from the grain carrying auger 5 to a bed such as a truck. At this time, when the position of the grain discharge port 9 is short, the movable transport cylinder 7 is extended to discharge the grain farther. In addition, the movable transport cylinder 7 is expanded and contracted so that the grains are uniformly discharged to the carrier. When the grain in the Glen tank 3 has been discharged in this way, the grain carrying auger 5 is stored in the auger receiver 8 again.

When the grain carrying auger 5 is stored in the auger receiver 8, if the movable transfer cylinder 7 is completely contracted,
It takes time to extend the movable transfer cylinder 7 at the next discharge. Therefore, in a state where the grain carrying auger 5 is stored in the auger receiver 8, the combine is operated while traveling in the field (when the cutting clutch or the threshing clutch is engaged as the detecting means) and when traveling on the road. The position of the grain discharge port 9 of the grain carrying auger 5 with respect to the frying cylinder 4 can be changed. More specifically, the position of the grain discharge port 9 with respect to the fryer 4 is configured to be longer when traveling in a field than when traveling on a road. When the mowing clutch or the threshing clutch is in the engaged state, the telescopic control motor 24 is driven to move the movable transport cylinder 7 to the above-described position.

In FIG. 6, the range A indicates the position of the tip of the movable transfer tube 7 when traveling on the road, and the range B indicates the position of the tip of the movable transfer tube 7 during work traveling in the field. . That is, the position of the leading end of the moving transfer tube 7 in A is in the state where the moving transfer tube 7 is most contracted and in the vicinity thereof, and the position of the leading end of the moving transfer tube 7 in B is in a state where it is extended more than A. Specifically, it is in the vicinity of a substantially middle portion of the entire stroke of the movable transfer cylinder 7. The state in which the movable transfer cylinder 7 is most contracted is indicated by a solid line, and the state in which it is most extended is indicated by a two-dot chain line.

In this way, during the work traveling in the field, the movable transport cylinder 7 is in a state in which it has been extended by a predetermined amount.
When discharging the grains in the Glen tank 3, the time required to extend the movable transport cylinder 7 can be shortened, so that the working efficiency is improved. Also, when traveling on a road, since the movable transport cylinder 7 is in a contracted state, that is, a state in which the distance from the fluffing cylinder 4 is short, the tip of the grain discharge auger 5 abuts on an obstacle or the like. Can be prevented. In addition, since the moment acting on the grain carry-out auger 5 during high-speed traveling on the road is small, the vibration of the grain carry-out auger 5 itself can be prevented and the base side can be prevented from being damaged. For this reason, when traveling on the road (high-speed traveling), it is preferable that the movable transfer cylinder 7 be in the most contracted state.

Next, a description will be given of the control for changing between the position A and the position B, which is different from the above example. As described above, in order to set the movable transfer cylinder 7 to the position B (during work traveling in the field), the on state of the cutting clutch and the threshing clutch (the respective lever positions may be detected by a limit switch or a potentiometer) is detected. Although the configuration is such that the vehicle speed of the combine is detected, the configuration may be such that the vehicle speed of the combine is detected. Usually, the combine is traveling at a high speed above a predetermined speed when traveling on a road, and the traveling traveling in a field is a low-speed traveling state below a predetermined speed, so that the vehicle travels using a vehicle speed sensor (not shown) provided in the transmission. A configuration may be adopted in which the mobile transport cylinder 7 is positioned at the position B by directly detecting the vehicle speed.

As described above, the moving and transporting cylinder 7 is automatically switched between the position A and the position B according to the vehicle speed, so that it is possible to save time and effort for operation. Next, differences from the above example will be described based on FIG.

The combine is provided with an automatic extension switch (not shown) for extending the grain carrying auger 5 to a predetermined position. When the automatic extension switch is turned on, the grain carrying auger 5 is separated from the auger receiver 8 and starts moving to the target position. At this time, the grain unloading auger 5 is raised until it reaches a predetermined height or more, and then shifts to a turning operation. During this turning operation, the movable transport cylinder 7 is extended. The position where the movable transfer tube 7 is extended may be the position where it is most extended, or may be the position set by the operator. Whether or not the movable transfer cylinder 7 exists at the set position is determined by a potentiometer (not shown) for detecting the amount of movement of the expansion / contraction control motor 24.

Thus, when the grain carrying auger 5 is automatically extended with the automatic extension switch turned on, the grain carrying auger 5 rises to a height higher than a predetermined level. Contact with an object or the like can be prevented. In addition, since the movable transport cylinder 7 is configured to extend along with the turning operation, the movable transport cylinder 7 is extended before reaching the target position, so that the work can be executed efficiently.

[0027]

The present invention has been configured as described above.
In the work traveling in the field, since the movable transport cylinder 7 is in a state of being extended by a predetermined amount in advance, the time required to extend the movable transport cylinder 7 when discharging the grains in the Glen tank 3 can be shortened,
Therefore, work efficiency is improved. Also, when traveling on a road, since the movable transport cylinder 7 is in a contracted state, that is, a state in which the distance from the fluffing cylinder 4 is short, the tip of the grain discharge auger 5 abuts on an obstacle or the like. Can be prevented. In addition, since the moment acting on the grain carry-out auger 5 during high-speed traveling on the road is small, the vibration of the grain carry-out auger 5 itself can be prevented and the base side can be prevented from being damaged.

[Brief description of the drawings]

FIG. 1 is a right side view

FIG. 2 is a front view

FIG. 3 is a rear view

FIG. 4 is a right side view

FIG. 5 is a sectional view

FIG. 6 is a plan view of the combine.

FIG. 7 is a rear view of the combine.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Traveling device, 2 ... Traveling vehicle body, 3 ... Glen tank, 4 ...
5: grain transport auger, 6: fixed transport cylinder, 7: movable transport cylinder, 8: auger receiver, 9: grain outlet.

Claims (2)

[Claims] 1. A Glen tank (3) for temporarily storing grains on a traveling vehicle body (2) having a traveling device (1);
And a grain carry-out auger 5 for discharging the grains temporarily stored in the above-mentioned, and the grain carry-out auger 5 is fitted to the fixed carrying barrel 6 and the fixed carrying barrel 6. Together
When the grain discharge auger 5 is stored in the auger receiver 8, the grain transfer auger 5 is moved between the work travel in the field and the travel on the road when the grain discharge auger 5 is stored in the auger receiver 8. Combine telescopic auger device configured to be able to change the position of the grain discharge port 9 of the grain carry-out auger 5 with respect to. 2. When the grain discharge auger 5 is stored in the auger receiver 8, the position of the grain discharge port 5 of the grain discharge auger 5 with respect to the fryer cylinder 4 is lower in the field than when traveling on a road. The telescopic auger device of a combine according to claim 1, characterized in that it is configured to be longer during work traveling.