JPS5936979Y2 - Lateral conveyance device in reaper - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a lateral conveyance device for harvested material such as a binder, in which an endless belt for conveying harvested material damage is suspended between three wheels.

In the horizontal conveyance device of this type of reaper, for example, when discharging the harvested material in the horizontal direction of the machine body so as not to interfere with the next run, the endless belt is arranged in a straight line in plan view. In addition, when performing intermediate cutting work, ridge reaping work, or when collecting harvested material while sequentially feeding it from the front to the rear with respect to a collection device installed on the sideways part of the machine, the endless belt should be kept flat. It is necessary to change the shape of the conveyance path in a plan view of the endless belt depending on the work conditions, such as switching to an L-shaped conveyance posture when viewed from above. ,
When the wheel on the conveyance end side is swung around the rotation axis of the intermediate wheel, the required length of the endless belt, that is, the degree of tension, changes, so the endless belt has a length that corresponds to the shape of each conveyance path. It is necessary to change the attachment and manually adjust the tension adjustment device one by one, which is disadvantageous in that it requires a lot of effort to change the posture of the endless belt.

The purpose of this invention is to make it possible to easily and quickly change the shape of the conveyance path, to ensure tensioning of the endless belt regardless of the shape of the path, and to provide a safety cover structure for the endless belt. The object is to provide a system that can reliably function without causing endless belt rotation troubles in any way, while making the operation surface advantageous.

In order to achieve the purpose of the lateral conveyance device for a reaper according to the present invention, of the three wheels on which the endless band for transporting harvested material is suspended, the wheel at the end of the conveyance is separated from the intermediate wheel by a support arm. The support arm is supported in a state where it is biased in the direction of rotation, and the support arm is attached to be swingable around the rotation axis of the intermediate wheel body, and the shape of the conveyance path in plan view is changed by swinging and fixing the position of the support arm. a first cover for the conveying end wheel body side portion of the non-conveying portion of the endless band is provided to be swingable integrally with the support arm, and the endless band has a non-conveying function. A second cover for the conveyance start end wheel body side portion in the section is attached so as to be swingable around a vertical axis arranged on the conveyance start end wheel body side, and the second cover is swung so that the free end side is in contact with the outer surface side of the first cover. The second cover is biased so that the first cover is biased so that the second cover covers the non-conveying portion of the endless band in a posture parallel or substantially parallel thereto regardless of changes in the shape of the conveying path. It is characterized by being intercepted so that it can be operated by swinging.

In other words, when the conveyance end wheel is swung, the length changes on the conveying side and the non-conveying side of the endless belt.
This change in length is automatically absorbed by the conveyor end wheel moving toward and away from the intermediate wheel, making it possible to change the shape of the conveyor path easily and quickly by simply swinging the support arm. did it.

By intercepting the conveyance end wheel to the tension wheel,
Tensioning force is applied not only when the conveyance path is bent but also when the conveyance path is straight, so no matter what shape the conveyance path is, the endless belt can be tensioned reliably. Drive can always be performed reliably and smoothly without problems such as slipping.

Furthermore, by providing the first and second covers in the attached state, the second cover moves in conjunction with the swinging operation of the support arm, and the endless band comes into contact with the end wheel regardless of the position thereof. Since the endless belt cover is covered in a state where it will not be damaged, no matter what the shape of the conveyance path is, the endless belt covering can be carried out reliably without any driving troubles such as contact between the endless belt and the cover. This eliminates the need for special cover posture change adjustments, which is advantageous in terms of operation.

Embodiments of the present invention will be described below based on the drawings.

Figure 1 shows a binder, with a pair of left and right running wheels 1, 1.
In front of the culm are a pulling device 2 for pulling up and transporting two rows of planted stem culms rearward and upward, a clipper-type reaping device 3 for cutting the base of the raised planted stem culm, and a clipper-type reaping device 3 for cutting the base of the planted stem culm. Devices 4 and 5 for locking the tip and the base of the plant for horizontal transport, and a binding device 6 for tying and discharging the reaped stem culms that have been transported horizontally in fixed amounts are provided, and the left and right traveling wheels 1,1
Engine 7 is mounted behind the tower.

The lateral conveyance device 4 on the tip side is constructed as shown in FIGS. 2 and 3.

That is, in order to suspend the endless conveyor belt 8, which has locking protrusions 8a arranged in series at appropriate intervals in the longitudinal direction, three locking protrusions are arranged at both ends and in the middle of the endless conveyor belt 8 in the conveyance direction. Pulleys 9A, 9B.

Of 9C, the intermediate pulley 9 provided on the fixed frame 10
An arm 1 consisting of double inner and outer members 12A and 12B is extendable and retractable in the hanging direction of the endless conveyor belt 8 on the support shaft 11 of B.
2, the H-shaped tubular member 12B is externally supported so as to be swingable around the axis of the support shaft 11, and the free end portion 12a of the inner rod-like member 12A of the swing arm 12 is attached to the support shaft. The pulley 9C on the conveyance end side is externally fitted onto this bent end portion 12a so as to be able to rotate only freely, and thus the support shaft 11 axis of the swing arm 12 By swinging around the core, the endless conveyor belt 8 can be switched between a horizontally conveying posture in a straight line and a backwardly bent L-shaped conveying posture in plan view.

Further, the spring receiver fixed to the inner rod-shaped member 12A is located between the member 13 and the boss portion 12b of the cylindrical member 12B.
A spring 14 is interposed to bias the pulley 9C at the end of conveyance in a direction away from the intermediate pulley 9B, that is, in a direction in which the swing arm 12 extends. The tension mechanism 15 automatically absorbs changes in the lengths of the conveying portion and the non-conveying portion.

In addition, hemispherical locking grooves 17 and 17 are formed at two locations displaced by 90 degrees around the axis of the support shaft 11 on the fan-shaped plate member 16 connected to the boss portion 12b of the H-shaped tubular member 12B. At the same time, a cylindrical member 18 connected to the fixed frame 10
includes a ball 19 that can be fitted into the locking groove 17.17.
A spring 20 that biases the ball 19 in the fitting direction and a presser bolt 21 that can adjust the biasing force of the spring 20 are provided. The belt 8 is configured to be fixed and held in the two types of conveying postures described above.

It should be noted that the swing arm 12 may be configured to be able to be fixed in position in the middle of its swing range, in addition to the above-mentioned two transport postures.

Next, the cover structure of the endless conveyor belt 8 will be explained.

That is, the first cover 23 for the portion 8B of the non-conveyance acting portion of the belt 8 corresponding to the conveyance end pulley 9C side is
A second cover 22 is attached to the arm 12 so as to be able to swing integrally therewith, and a second cover 22 for a portion 8A of the non-conveyance action portion of the belt 8 corresponding to the conveyance start end pulley 9A side is attached to the conveyance start end pulley 9.
It is pivotally attached to the fixed frame 10 so as to swing around a vertical axis 3 placed on the A side.

Then, the free end side of the second cover 22 is brought into contact with the outer surface side of the first cover 23, and the second cover 22 is brought into contact with the outer surface side of the first cover 23.
2 is biased to swing by a coil spring 24, so that the second cover 22 is in a state along the left-right direction of the machine body in conjunction with the swing of the arm 12 when the attitude of the belt 8 is changed. A first cover posture that covers the portion 8A in a parallel or substantially parallel posture; and a second cover posture that covers the non-belt conveying portion 8A, which is tilted backward, in a parallel or substantially parallel posture. In addition, the position is changed by the pressing action of the first cover 23 and the urging action of the spring 24.

[Brief explanation of drawings]

The drawings show an embodiment of the lateral conveyance device for a reaper according to the present invention, and FIG. 1 is a plan view of a binder, and FIGS. 2 and 3 are enlarged partial cutaway views of essential parts, respectively. 8...Endless belt for horizontal conveyance of harvested material, 9A, 9B, 9
C...Ring body, 12...Arm, 8A,
8B... Endless band non-transporting portion, 22...
...Second cover, 23...First cover a...
・・・Vertical axis center.

Claims (1)

[Scope of utility model registration request] Three wheels 9A, 9 for hanging the endless belt 8 for conveying harvested material loss
The wheel body 9C at the end of conveyance among B and 9C is attached to the support arm 12.
The support arm 12 is supported in a state where it is biased in a direction away from the intermediate wheel body 9B, and the support arm 12 is attached to be swingable around the rotational axis of the intermediate wheel body 9B. The first cover 23 for the portion 8B on the side of the conveyance end wheel body 9C in the non-conveyance acting portion of the endless band 8 is connected to the support arm. 12, and a second cover 22 for the portion 8A on the side of the conveyance starting end wheel body 9A in the endless band non-conveying portion is arranged around the vertical axis 8 disposed on the conveyance starting end wheel body 9A side. The second cover 23 is attached so as to be swingable, and is swing-biased so that the free end comes into contact with the outer surface of the first cover 23, so that the second cover 23 maintains the endless band non-conveying function regardless of changes in the shape of the conveyance path. A lateral conveyance device for a reaper, which is configured to be oscillated by the first cover 23 and the second cover biasing to cover the portion 8A in a parallel or substantially parallel attitude.