JPS63116618A - Divider of harvester - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention supports the front end of a rod in a forward-downward posture so as to be swingable in three-dimensional directions at approximately one point, and at the same time supports the front end of a rod in a forward downward posture so as to be able to swing freely in a three-dimensional direction. The present invention relates to a weeding device for a harvester, which is configured such that the locus of the rod drawn by driving and rotating the rod around a rotation axis connecting the parts of the rod has a substantially conical shape at least in the front part of the rod.

[Conventional technology]

Conventionally, as a weeding device configured like a government journal, there is one shown in Japanese Patent Application Laid-Open No. 61-21021, for example.
In the weeding device of the cited reference, the weeding effect is obtained by causing the rods to revolve in a spindle-shaped trajectory without rotating the rods.

[Problems to be Solved by the Invention] Now, considering the weeding device of the above-mentioned reference, since the weeding device of the said reference revolves the rod without rotating the rod, in other words, the harvesting machine body Since the predetermined surface of the rod is always driven in one direction regardless of the revolution, compared to, for example, the rear end of the rod is connected and fixed to the crank arm for revolution. As a result of the reduction in the relative velocity of the rod with respect to the culm on which it acts, the wrapping of the culm around the rod is reduced.

However, even if the weeding device is configured as in the cited example, there is room for improvement as the stem culm may be rolled up against the rod due to sliding contact caused by revolution at the contact area between the rod and the stem culm. .

An object of the present invention is to obtain, through rational modification, a weeding device that makes it as difficult as possible to wrap around stem culms.

[Failure to solve the problem]

The present invention is characterized by being provided with a revolution mechanism that drives and rotates the rod around the rotation axis, and an autorotation mechanism that rotates the rod in a direction opposite to the direction of rotation of the rod around the rotation axis. In this respect, its action and effect are as follows.

[Function] When the above characteristics are configured as shown in Fig. 1, for example, a revolution mechanism (R) consisting of a bevel gear mechanism (■ and a rotating case) is created.
When the rod (1a) revolves due to the operation of
), the rod (1a) rotates in the opposite direction to the revolution direction, and as shown in Figure 2, the relative position of the rod (la) at the contact point between the grass (T), which is an example of a stem culm, is This means that the speed can be significantly reduced.

In addition, since the direction of rotation is opposite to the direction of revolution, even if the stem culm is wrapped around the rod (1a) due to the orbital movement, the rotation of the stem will unwind the stem culm. .

〔Effect of the invention〕

Therefore, by modifying the conventional weeding device by adding a rotation mechanism, the weeding bag M which originally has a structure that moves the rod in a form that makes it easy to wrap around the stem culm, makes it difficult to wrap the stem around the rod. was gotten.

In particular, in the present invention, by setting the operating speed of the rotation mechanism, it is possible to reduce the relative speed at the contact area between the rod and the stem culm to zero, and by setting the operating speed of the rotation mechanism in this way,
It also has the effect that the curling of the stem culm is extremely reduced.

〔Example〕

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

As shown in Fig. 8 and Fig. 4, a pair of left and right weeding devices (1) l (1), which are driven and rotated, and a weeding device (1) +
A pair of pulling devices (2) on the left and right that introduce and pull up the planted grass from (1) + (2), a clipper-type cutting device (3) that cuts the base of the grass that has been pulled up, A lateral conveying device (4) that pinches the upper part of the rush grass and sends it laterally, and a lateral conveyance device (4) that holds and conveys the rush grass that is sent by the horizontal transportation device (4) with the plant side facing forward (to the right in Fig. 8). A sorting device (5) for scraping out waste grass, and a binding device (6) for binding the grass that has been sorted and set in a fallen position by the action of the sorting device (5).
A rice grass harvester as an example of a harvesting machine is constructed by connecting a rice grass harvesting unit comprising a deck (7) on which tied bundles of rice grass are placed to a traveling machine body (A) comprising an agricultural tractor. .

As shown in the figure, the traveling body (A) is used with the driver's seat (8), steering handle (9), etc. of an agricultural tractor turned in the opposite direction with respect to the body of the tractor. The power from the tractor is transmitted via the transmission shaft QO, and the unit is connected so that the ground level can be adjusted by operating the lift arm α°C provided on the tractor, and then each device provided on the unit Explain the structure.

The weeding device (1) includes a rod (1a) that is gently curved in a front-down position, the front end of which is supported via a ball joint 0, and this rod (la) at the front of the weeding frame @. It consists of a mechanism (1b) that is driven to rotate around the axis (P) while drawing a spindle-shaped locus as shown in Figure 2, and a lifting device (2) that rotates up and down as shown in Figure 5. A pair of sprockets) (2B) and (2a), an endless chain (2b) wound around these, a large number of undulating pawls (2c) provided on the endless chain (2b), and a case (2d) that houses them. The horizontal conveyance device (4) consists of a large number of pulleys (4a) and fists that rotate on vertical axes, and a pair of clamping bells that are wound around these and are made of a flexible material so as not to damage the rush.
(4b) and (4b), and the sorting device (5) is
As shown in Fig. 5, the endless chain 0Q wound around the front and rear sprockets α and α is equipped with a large number of undulating claws OQ, etc., and the one installed inside the case α is arranged vertically 3 times.
It consists of two side-by-side currant sections (5A) and a pair of left and right rotating drums (5B) for discharging the waste straw that has been raked in the currant section (5A) further forward. A belt with protrusions θa, 08) is provided to assist in feeding the rushes to the binding device (6) on the plant base side.

During the harvesting process, the rice straw whose bedside has been cut off is placed in a position where the top of the rush is held by the horizontal conveyor N (4) and subjected to the sorting action, so that the planthead is tilted forward. Bind with the binding device (6) and deck (7)
” Second, it is released.

Moreover, the drive system of the weeding device (1) is configured as follows in order to reduce the wrapping of straw grass.

That is, as shown in FIG. 1, the driving mechanism (11)
) is a drive shaft (19, a support case (a) in which the drive shaft 01 is housed, a fixed shaft CI) attached in a cantilevered manner to the support case (4), and a rotating case loosely fitted to the fixed shaft 0]). ),
A bevel gear mechanism (to) that drives and rotates the rotating case (A) with the power from the drive shaft (11), a rotating shaft (C) that is freely rotatably supported in a cantilevered manner on the rotating case (A), and an internal structure in the rotating case (A). It consists of a chain transmission mechanism (A) that links the fixed shaft Qυ and the rotation axis (C), and the rear end of the rod (la) is connected to the rotation axis (C).

The bevel gear mechanism (g) and rotating case (e) are collectively referred to as a revolution mechanism (R), and the fixed shaft Qυ and chain interlocking mechanism are collectively referred to as a rotation mechanism (S).

In addition, the chain interlocking mechanism (c) is the first link provided on the fixed shaft Qυ.
Consisting of a sprocket (25a), a second sprocket (j25b) provided on the rotation axis (c), and an endless chain (25(+)) wound around these, the first sprocket (25B)
) When the number of teeth on the second sprocket (25b) is set to 1/2 and the drive shaft 09 rotates, the rod (lB) revolves as shown in Fig. 2. As the rod (1a) rotates in the opposite direction, the rod (1a)
The structure is such that the relative velocity becomes zero at the contact portion between the rod (la) and the rush (T).

Incidentally, the left and right weeding devices (1) + (1) operate synchronously by interlocking the respective drive shafts αI and Ql via an endless chain (7), and also operate synchronously with the fixed shaft ■υ. The core (P) substantially coincides with the revolution axis of the rod (1a).

[Another Embodiment] In addition to the embodiments described above, the present invention can also be implemented by interposing eight gears between the fixed shaft and the rotating shaft, for example.
It is also possible to configure the weeding device by including an electric motor that independently drives the revolution mechanism and the rotation mechanism.

Incidentally, although reference numerals are written in the claims section for convenient comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.

[Brief explanation of the drawing]

The drawings show an embodiment of the weeding device of the harvester according to the present invention,
Figure 1 is a sectional view showing the drive structure of the weeding device, Figure 2 is a diagram showing the movement of the rod, Figure 8 is an overall plan view of the harvester, Figure 4 is an overall side view of the harvester, and Figure 4 is a side view of the harvester. FIG. 5 is a side view showing the state of the sorting process. (la) --- Rod, (P) --- Rotating axis, f
R)...Revolution mechanism, (S)...Rotation mechanism ° Agent Patent attorney Osamu Kitamura Figure 2

Claims (1)

[Claims] The front end of the rod (1a) in a forward downward posture is supported so as to be swingable in three-dimensional directions at approximately one point, and around a rotation axis (P) that connects this supporting part and a part spaced apart from this rod (1a). The rod (1a) drawn by driving and rotating the rod (1a) with
A weeding device for a harvester is configured such that the locus of the rod (1a) is approximately conical at least at the front part of the rod (1a), and the rod (1a) is driven to rotate around the rotation axis (P). The mechanism (R) and the rod (1
A weeding device for a harvester, which is provided with a rotation mechanism (S) that rotates a rod (1a) in a direction opposite to the rotation direction of a).