JPS642592Y2 - - Google Patents

Description

[Detailed description of the invention] This invention has an endless chain equipped with stem culm locking transport claws that can swing up and down freely, inside a half-split case that can be divided on both sides of the chain rotation surface, and
The endless chain is wound around a sprocket that is pivotally supported on one end side and the other end side of this half-split case, and the nail erecting claw is used to raise the stem culm locking and conveying claw on the boss portion of the sprocket on the one end side. A guide surface is provided, and the rotation path of the endless chain is
A stem culm conveyance path in which the stem culm locking conveyance claw is transferred in an upright state from the sprocket on the one end side to the sprocket on the other end side, and a stem culm conveyance path from the sprocket on the other end side to the sprocket on the one end side. The present invention relates to a stem culm conveyance device comprising a non-conveyance path in which the stem culm locking conveyance claw is moved in a laid down state.

Conventionally, this type of stem culm conveying device has comprised a pair of half-split cases on both sides of the chain rotation surface, each of which is made of a single member. One of these half-cases was configured as a safety cover for the stem culm transport device, so it did not have a particularly complicated structure and could be easily manufactured. A structure that guides the attached stem culm conveyance claw to the guide surface for raising the claw formed on the boss portion of the sprocket, a member for preventing vibration from the chain, and a posture change device that changes the stem culm locking claw to a laid down position. For example, when manufacturing by press molding, the parts are long and the mold becomes extremely large and complicated, resulting in huge equipment costs for manufacturing. Moreover, it is difficult to process special structural parts such as the above-mentioned guiding structure, resulting in low processing accuracy.

The present invention was developed in view of the above-mentioned circumstances, and aims to improve the manufacturing accuracy of the case frame.
The object of the present invention is to provide a stem culm conveying device that can be easily manufactured.

The stem culm conveying device according to the present invention is configured such that one of the half cases is a combination of a starting end case portion, an intermediate case portion, and a terminal end case portion, and , a guide surface is formed on the starting end side case portion to guide the stalk culm locking conveyance claw transitioning from the non-transport route to the stalk culm conveyance route to the nail raising guide surface, and a guide surface is formed on the intermediate case portion. is provided with a claw-erecting guide member that moves the stem culm-locking transport claws erected on the claw-erecting guide surface in a sliding state so as to maintain the erected posture, and the terminal side case portion includes: The present invention is characterized in that a posture changing tool is provided for changing the stem culm locking and conveying claw to a laid-down posture after it has moved through the stem culm conveying path.

That is, with the above characteristic configuration, one of the half cases forming the case frame of the stem culm conveying device,
Since it is composed of a combination of three case parts, it is only necessary to manufacture each case part separately and assemble them as shown in the characteristic configuration described above, which not only makes it easier to handle the parts during processing, but also
For example, when pressing each case part, we made the mold simple and compact.
As a whole, it is easy to reduce equipment costs in terms of production, and since it is not manufactured in one piece as in the past, it has achieved effects such as being able to be processed with very high precision.

Hereinafter, embodiments of the present invention will be described based on the drawings.

An embodiment of the present invention shows a stem culm conveying device in a combine harvester.

Figures 1 and 2 show the front side of the combine harvester, which is located above the clipper type reaping device 1 and at the rear of three pulling devices 2 arranged in parallel in the left and right direction. A pucker 3 for raking the reaped stem culm backwards is installed in each of the culms, and a threshing device 4 is installed from the pucker 3 located on the side of the most cut field.
A stalk culm conveying device which locks and clamps a single row of reaped stalk culms by the ear tip and stock base toward the threshing feed chain 5, changes it to a sideways posture, and transports it to the threshing device 4. In addition to constructing one ear tip locking conveyance device 6 and a pair of front and rear stock head clamping conveyance devices 7 and 8, the two raking packers 3 and 3 are used to cut the two rows of reaping. Auxiliary conveyance devices 9 and 10 are provided for locking and clamping the tip and the base of the stem culm and allowing them to merge in the middle of the stem culm conveyance path by the conveyance devices 6, 7, and 8, and the rear portion By swinging the clamping conveyance device 8 in the vertical direction using its conveyance starting end as a fulcrum,
The insertion length of the stem culm into the threshing device 4, that is, the handling depth is configured to be adjustable. In this combine harvester, the ear tip locking and conveying device 6 is configured as follows.

That is, as shown in FIGS. 3 to 8, an endless chain 12 equipped with stem culm locking and conveying claws 13 so as to be swingable up and down is installed inside the rack, and the chain can be divided into both sides of the rotating surface. The conveying claws 13 move in a laid-down position along or almost along the moving direction of the chain 12 at the starting end in the stem culm conveying direction of the case frame 11, which constitutes one half of the case frame 11.
to a lateral protruding posture perpendicular or substantially perpendicular to the moving direction of the chain 12, forming a first guide surface 14a as a guide surface for guiding to a boss portion outer circumferential surface 15a, which will be described later. A second guide surface 14b is formed at the end of the stem culm in the conveying direction for swinging and retiring the conveying claw 13 moving in the upright position to the laid down position,
and a third guide surface that slides and guides the conveyance claws 13 in the upright posture so as not to be in a hanging posture on the stem culm conveyance path A extending from the first guide surface 14a to the second guide surface 14b. 14
c is formed.

Then, the case frame 11 is
A curved guide member 11A as a starting end case portion having a guide surface 14a, a curved guide member 11B as a terminal end case portion having a second guide surface 14b, and a linear guide member 11B as an intermediate case portion having the third guide surface 14c. Guide member 11
The curved guide member 11A on the conveyance start end side and the linear guide member 11
C, this linear guide member 11C, and the curved guide member 11B on the conveyance terminal side are assembled and configured by fixing them in such a state that their guide surfaces 14a, 14c and 14c, 14b are flush or almost flush. There is.

One sprocket 15A is pivotally supported on the conveyance start end side of the linear guide member 11C, and two sprockets 15 are pivotally supported on a reinforcing plate 16 fixed to the curved guide member 11B on the conveyance end side.
B, 15C, the endless chain 12 is wound in a triangular shape, and the outer circumferential surface 15a of the boss portion of the sprocket 15A on the transport start end side is moved to lie down along the non-transport route 2. The curved guide member 11 on the conveyance start end side is configured as a cam surface as a guide surface for raising the claws by contacting the bases of the claws 13 to rotate and raise the transport claws 13.
A and the linear guide member 11C are fixed with anti-shake members 17 and 18 for the chain 12, with their adjacent ends flush against each other.

Further, the linear guide member 11C includes a pawl raising guide member 19 that contacts the base of the conveying pawls 13 and moves the conveying pawls 13 while holding them in an erect and protruding posture, and a pawl raising guide member 19 that is connected to the endless chain 12. A tension mechanism 20 is provided, and a contact portion 21 as a posture changing device made of an elastic material such as rubber is provided on the curved guide member 11B side at the end of the conveyance, and is made of an elastic material such as rubber for lowering the conveyance claws 13. ing.

The tension mechanism 20 includes the chain 12
Sprocket 22 that can engage with the non-conveyance path portion of
A tension arm 23 is pivotally attached to the chain 12 so as to be swingable in the direction of distance from the chain 12, and a spring 24 is provided to bias the tension arm 23 to swing in the direction of tensioning the chain.

In the figure, reference numeral 25 denotes a removable safety cover that covers the upper part of the case frame 11, and constitutes a pair of half cases with the case frame 11.

Note that although reference numerals are written in the claims section of the utility model registration for convenience of comparison with the drawings, the present invention is not limited to the structure of the attached drawings by such entry.

[Brief explanation of the drawing]

The drawings show an embodiment of the frame structure of the stem culm conveyance device according to the present invention, in which FIG. 1 is a side view of the front part of the combine, FIG. 2 is a schematic plan view, and FIG. Figure 3B is a plan view showing the case frame with the safety cover removed, Figure 4 is a sectional view taken along the - line in Figure 3F, and Figure 5 is a
Fig. 6 is a sectional view taken along the - line in Fig. 3 A, Fig. 7 is a view taken along the - line arrow in Fig. 3 A, and Fig. 8 is a - line sectional view taken in Fig. 3 A. This is a perspective view. 11, 25...Half case, 11A...Starting end side case part, 11B...Terminal end side case part, 11
C...Middle case part, 12...Endless chain,
13... Stem culm locking conveyance claw, 14a... Guide surface, 1
5A, 15B, 15C...Sprocket, 15a
... Claw raising guide surface, 17, 18 ... Shake prevention member, 19 ... Claw raising guide member, 21 ... Posture change tool.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. An endless chain 12 equipped with stem culm locking transport claws 13 so as to be able to swing up and down is housed in half-split cases 11 and 25 that can be divided on both sides of the chain rotation surface. At the same time, the sprocket 1 is pivotally supported on one end side and the other end side of the half-split cases 11 and 25.
The endless chain 12 is attached to 5A, 15B, and 15C.
and sprocket 1 on the one end side.
A claw raising guide surface 15a for raising the stem culm locking and conveying claws 13 is provided on the boss portion of 5A, and furthermore, the rotation path of the endless chain 12 is changed from the sprocket 15A on the one end side to the other end side. A stem culm conveyance path A in which the stem culm locking conveyance claws 13 are transferred in an upright state until reaching the sprockets 15B, 15C at the other end, and from the sprockets 15B, 15C at the other end to the sprocket 15A at the one end. The stem culm locking conveyance claw 13
Non-conveyance route B where ... is transferred in a laid-down state
In the stem culm conveying device, one of the half cases 11 and 25 is divided into a starting end side case portion 11A and an intermediate case portion 11C.
and a terminal end side case portion 11B, and the starting end side case portion 11A includes a path from the non-transport route B to the stem culm transport route A.
A guide surface 14a that guides the stem culm locking and conveying claws 13... to the claw-erecting guide surface 15a.
is formed in the intermediate case portion 11C,
A claw-erecting guide member 19 is provided that moves the stem culm locking and conveying claws 13 erected on the claw-erecting guide surface 15a in a sliding state so as to maintain the erected posture, and the terminal-side case portion 11
A stem culm conveyance device characterized in that B is provided with a posture changing device 21 for changing the stem culm locking conveyance claws 13 after they have been moved through the stem culm conveyance path A into a laid-down posture. 2. The endless chain 12 includes one sprocket 15A pivotally supported at the starting end of the stem culm conveyance path A in the intermediate case portion 11C, and two sprockets 15B and 15C pivotally supported on the terminal case portion 11B. The first claim for utility model registration is wound in a triangular shape.
The stem culm conveying device described in section. 3. The stem according to claim 1 or 2, wherein the starting end side case portion 11A and the intermediate case portion 11C are provided with steady-preventing members 17 and 18 for the endless chain 12, respectively. Culm conveying device.