JPH0530606Y2 - - Google Patents

Description

[Detailed explanation of the invention] (a) Industrial application field The present invention has a structure in which a grain tank attached to a combine harvester can be rotated and opened for inspection and repair of the drive device between the grain tank and the threshing device. It is related to.

(b) Prior art A technology that allows the grain tank conventionally attached to a combine to be opened and turned in order to enable inspection and repair of the drive section between the grain tank and the threshing device is disclosed in Utility Model Application No. 59-29160. The technique disclosed in the official gazette is considered to be publicly known.

Furthermore, as a device for generating an alarm when the discharge auger that carries out the paddy from the grain tank 1 rotates in a dangerous condition, a technology such as that disclosed in Japanese Utility Model Application No. 56-39943 is known. .

(c) Problems to be solved by the invention The purpose of the invention is to solve problems when the center of rotation of the grain tank is located at the vertical auger, and similarly, the center of rotation of the discharge auger is also located at the vertical auger. As the grain tank 1 rotates, each part of the pivot portion of the vertical auger is deflected,
The frictional resistance between the two rotating parts, which are separately supported, increases, and as the grain tank rotates, the vertical auger also rotates. The accompanying rotation of the vertical auger involves the rotation of the left-right rotating bevel gear 7 fixed on its outer periphery, and since the forward/reverse drive motor that drives the left-right rotating bevel gear is not rotating, a high reduction ratio is achieved. The small-diameter bevel gear did not rotate, causing strain on the meshing portion, resulting in the teeth of the left-right rotating bevel gear becoming chipped.

In order to solve this problem, the present invention uses a locking device to prevent rotation of the grain tank so that when the grain tank is rotated, the discharge auger is fixed in the normal position of the auger rest. This is to stop the rotation operation or issue an alarm to make the rotation operation impossible.

(d) Means for solving the problem The purpose of the present invention is as described above. Next, the configuration for achieving the purpose will be explained.

In a configuration in which the grain tank 1 can be rotated and opened relative to the threshing device D around the vertical auger 3, and the discharge auger 5 can be rotated left and right by a left and right rotation device provided on the outer periphery of the vertical auger 3, the discharge An auger storage detection switch 22 that detects the storage state of the auger 5 and a grain tank position detection switch 21 that detects that the grain tank 1 is fixed at the normal position are provided. is Glentank 1
This makes it impossible to rotate.

(E) Embodiment The purpose and structure of the present invention are as described above. Next, the structure and operation of the embodiment shown in the attached drawings will be explained.

Figure 1 is a side view of the combine, Figure 2 is a plan view of the grain tank in a rotated state, Figure 3 is a rear view of the grain tank pivot, Figure 4 is a front view, and Figure 5 is the main part. Discharge auger 5, which is the main part of the idea
FIG. 6 is a plan sectional view of the spout 11a portion of the grain lifting cylinder 11, and FIG. 7 is an electric circuit diagram of the present invention.

The outline of the grain tank will be explained with reference to FIGS. 1 to 4.

An increase tank 2 that rotates and protrudes outward from the grain tank 1 to increase the capacity of the grain tank 1.
is located. In addition, a lower auger 4 is placed at the bottom of the grain tank 1 to collect paddy.
The paddy collected by the lower auger 4 is fried by the vertical auger 3, and then transferred to the discharge auger 5. The discharge auger 5 can be rotated vertically by a vertically moving cylinder 6, and can also be freely rotated left and right by a left-right rotating bevel gear 7 provided on the vertical auger 3. The left and right rotating bevel gear 7 is driven by a small diameter bevel gear 7 rotated by a forward/reverse drive motor M as shown in FIG.
It is a.

A pivot tube 8 is protruded from the threshing device D, and the vertical auger 3 is rotatably fitted inside the pivot tube 8.
Further, a rotation bearing portion 19 that supports rotation of the grain tank 1 is loosely fitted on the outer periphery of the pivot cylinder 8. Therefore, the pivot tube 8 supports both the rotation of the vertical auger 3 and the discharge auger 5 and the rotation of the grain tank 1.

The lower end of the vertical auger 3 is supported by a bearing on a support auger 3a, and the support auger 3a itself is integrated with the lower auger 4 and rotates with the rotation of the grain tank 1. The support auger 3a has a lower end supported by a thrust bearing 30.

In this way, the left-right rotating bevel gear 7 for rotating the discharge auger 5 left and right is provided on the outer periphery of the vertical auger 3, and the bearing for rotating the vertical auger 3 is provided at the part that rotates together with the grain tank 1. Since it has a structure in which it is fitted and supported within a certain support auger 3a, when the grain tank 1 is rotated, the frictional resistance between the fitting part of the support auger 3a and the vertical auger 3 increases, and it should remain stationary. The vertical auger 3 rotates. As a result, the discharge auger 5 also rotates.

When the vertical auger 3 rotates, the left-right rotating bevel gear 7 also rotates, and a small-diameter bevel gear 7a driven by a forward/reverse drive motor M is engaged with the left-right rotating bevel gear 7.
Since the reduction ratio of the left-right rotating bevel gear 7 is large, the small-diameter bevel gear 7a does not rotate due to the braking force of the non-rotating forward/reverse drive motor M, resulting in destruction of the left-right rotating bevel gear 7 or the small-diameter bevel gear 7a. It is.

14 is a roller for smoothing the rotation of the grain tank 1 around the vertical auger 3. The rollers 14, 14 rotate on the body frame 15.

Power is also transmitted from the engine output pulley 10 to the auger drive pulley 9 that drives the lower auger 4, and the power is transmitted to the vertical auger 3.
The discharge auger 5 is also driven.

As shown in FIG. 2, FIG. 3, and FIG. 4, the paddy after threshing and sorting is carried out from the first conveyor 13 of the threshing device D, transferred to the hoisting tube 11, and transferred to the upper part of the grain tank 1 at the top of the spout 11a. More investment is made.

As described above, the present invention enables the front part to rotate outward while being pivotally supported by the vertical auger 3, and in the rotated state, the threshing device D
In a configuration in which a drive unit such as a V-belt located between the grain tank 1 and the drain auger 5 can be inspected and repaired, an alarm/lock mechanism is installed to prevent rotation of the grain tank 1 when the discharge auger 5 is not stored. This is what was placed.

The embodiments shown in FIGS. 5, 6, and 7 will be explained.

The spout 11a at the upper end of the grain lifting cylinder 11 and the side wall of the grain tank 1 are not fixed with bolts or the like, and when the grain tank 1 is in the stored state, they are in abutting state. It is designed to be sealed tightly. By sealing in this contact state, when the grain tank 1 is rotated or stored,
This eliminates the need to attach and detach bolts for fixing to the spout 11a on the back side of the grain tank 1 each time. In order to prevent the leakage of paddy in this contact state, an elastic seal 23 is interposed.

Further, a grain tank position detection switch 21 is arranged on the side of the spout 11a, and the grain tank position detection switch 21 is OFF when the grain tank 1 is in the normal position. It is a switch that turns on when you rotate it and move away from it.

Further, as shown in FIG. 5, an auger storage detection switch 22 is disposed within an auger rest 20 that stores the discharge auger 5 and disables left and right rotation. With the discharge auger 5 stored in the auger rest 20, the auger storage detection switch 22 is activated.
is OFF, and when the discharge auger 5 is removed from the auger rest 20, the auger storage detection switch 22 is configured to be ON.

The grain tank position detection switch 21 and auger storage detection switch 22 are arranged in series as shown in FIG. 7, and an alarm device 25 and a lock solenoid 27 are arranged in the circuit.

With this configuration, when only the discharge auger 5 is rotated or when only the grain tank 1 is rotated, neither the alarm device 25 nor the lock solenoid 27 is activated.
Although it is in the OFF state and does not work, when both become non-stored, both the grain tank position detection switch 21 and the auger storage detection switch 22 are turned ON, the circuit is closed, and the alarm device 25 issues an alarm.
Further, the lock solenoid 27 creates a locked state, making it impossible to rotate either the discharge auger 5 or the grain tank 1.

(f) Effects of the invention Since the present invention is constructed as described above, it has the following effects.

That is, when the grain tank 1 is rotated while the discharge auger 5 is not in the stored state but can be rotated,
Both are the lower part of the vertical auger 3 and the support auger 3a
Because the bearings are supported by touching each other at the top of the
The rotation of the heavier grain tank 1 causes the vertical auger 3 to rotate, destroying the left-right rotating bevel gear 7 or the small-diameter bevel gear 7a.

On the other hand, in the case of the present invention, if an attempt is made to rotate the grain tank 1 when the discharge auger 5 is detached from the auger rest 20, the alarm device 25 and the lock solenoid 27 are activated, so the operator must Since the grain tank 1 is rotated after the work is stopped and the discharge auger 5 is fixed again, the vertical auger 3 does not rotate along with it. This makes it possible to prevent the left-right rotating bevel gear 7 and the small-diameter bevel gear 7a from being destroyed.

[Brief explanation of the drawing]

Figure 1 is a side view of the combine, Figure 2 is a plan view of the grain tank in a rotated state, Figure 3 is a rear view of the grain tank pivot, Figure 4 is a front view, and Figure 5 is the main part. Discharge auger 5, which is the main part of the idea
FIG. 6 is a plan sectional view of the spout 11a portion of the grain lifting cylinder 11, and FIG. 7 is an electric circuit diagram of the present invention. 1...Glen tank, 3...Vertical auger, 3
a... Support auger, 5... Discharge auger, 20
... Auger rest, 21 ... Glen tank position detection switch, 22 ... Auger storage detection switch, 25 ... Alarm device, 27 ... Lock solenoid.

Claims (1)

[Scope of utility model registration request] In a configuration in which the grain tank 1 can be rotated and opened relative to the threshing device D around the vertical auger 3, and the discharge auger 5 can be rotated left and right by a left and right rotation device provided on the outer periphery of the vertical auger 3, the discharge An auger storage detection switch 22 that detects the storage state of the auger 5 and a grain tank position detection switch 21 that detects that the grain tank 1 is fixed at the normal position are provided. is Glentank 1
A rotatable grain tank structure characterized by making it impossible to rotate.