JPH083237Y2 - Grain culm transport structure of reaper harvester - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a grain culm conveying structure of a mowing section in a reaper harvesting machine such as a combine or a carry binder.

[Conventional technology]

In a combine harvester, which is one of the harvesters, for example, as shown in Figs. 4, 2 and 3, the harvested grain stems are gathered in the center behind the raising device (1) and the harvesting device (2). An incoming gear-shaped packer (4) (corresponding to a rotating body for scraping grain culm) and a grain culm conveying device (5) having a locking claw (19) are provided.

In this case, the drive structure of the packer (4) and the transfer device (5) had the structure shown in FIG. That is, the packer (4) is frictionally held by the drive shaft (11) vertically arranged in the mowing section via the disc spring (13) (corresponding to a friction holding mechanism). On the other hand, the transfer device (5) is composed of an upper case (16) and a lower case (17), and a chain (18) is provided on the outer peripheral portion between the upper and lower cases (16) and (17).
Is arranged and the locking claw (19) is attached to this chain (18).
Are installed at intervals. A sprocket (23) for driving the chain (18) is engaged with a part of the chain (18).

Furthermore, a cylindrical member (26) is bolted to the packer (4), and the sprocket (23) of the transfer device (5) is connected.
Cylindrical member (26) so that is concentric with the drive shaft (11)
It is connected and fixed by the bolt (27).

As a result, when the drive shaft (11) is rotationally driven, the packer (4) and the sprocket (23) of the transfer device (5) rotate together, and one of the packer (4) and the transfer device (5) is blocked. When this occurs, a slip occurs between the packer (4) and the drive shaft (11), and both the packer (4) and the transport device (5) stop.

[Problems to be solved by the device]

In the conventional structure shown in FIG. 4, when it is necessary to remove the transfer device (5) for repairing or lubrication of the packer (4) side, a bolt for connecting the sprocket (23) and the cylindrical member (26). (27) will be removed. In this case, remove the bolt (27) by removing the upper case (16) and the lower case (1
7) Disconnect from the upper case (16) to the lower case (17)
The bolt (27) cannot be removed without removing it, which is a little difficult in terms of workability.

Furthermore, if the upper case (16) and the lower case (17) that maintain the overall shape of the transfer device (5) are disconnected, the chain (18) and the locking claws (1) can be removed during the work of removing the bolt (27).
9) may come off the lower case (17).
Therefore, when this happens, the upper case (16)
The work of connecting the lower case (17) and the lower case (17) and assembling the transfer device (5) becomes very troublesome.

It is an object of the present invention to provide a structure that allows the carrier device to be easily attached to and detached from the drive shaft.

[Means for solving the problem]

The feature of the present invention is in the grain culm transportation structure of the harvester,
It consists in configuring as follows. That is, a rotary body for scraping grain is attached to a drive shaft vertically arranged in the cutting unit via a friction holding mechanism, and an output shaft is coaxial with the drive shaft via a support member on the rotary body. Fixed in the shape of
In the case of the carrier device which supports the locking claws for transporting grain culm movably along the outer periphery, the input shaft for driving the locking claws is supported, and the input shaft is exposed on the lower surface of the case, The output shaft and the input shaft are configured so that they can be engaged / disengaged / disengaged, and their actions and effects are as follows.

[Action]

As described above (see FIG. 1), the input shaft (21) for driving the carrier device (5) is connected to the cases (16), (1) of the carrier device (5).
The input shaft (21) is supported by the case (16), (1
I will expose it on the bottom of 7). Then, if the input shaft 21 and the output shaft (15) on the rotating body 4 side are configured to be engageable with and disengageable from each other, the entire conveying device (5) in FIG. The entire carrier device (5) can be removed from the body (4). Thereby, it is not necessary to disassemble the cases (16) and (17) of the transfer device (5).

[Effect of device]

As described above, the entire transport device can be easily removed from and attached to the rotating body without disassembling the transport device, and the workability can be improved.

〔Example〕

 Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 3 shows a front part of a combine, which is one of the harvesters, and a mowing part (3) equipped with a raising device (1) and a clipper-type mowing device (2), a packer (4). (Corresponding to a rotating body), a first transfer device (5) of a locking transfer type, and a second transfer device (8) including a holding transfer part (6) and a locking transfer part (7), A reaping transport system is configured.

As a result, the grain culms cut by the cutting unit (3) are gathered in the center by the first transfer device (5) and the packer (4) as shown in FIGS. 2 and 3, and the second transfer is performed. It is delivered to the device (8). Then, the grain culm is passed from the second transfer device (8) to the feed chain (10) of the threshing device (9).

Next, the first transfer device (5) and the packer (4) will be described. As shown in FIG. 1, a drive shaft (11) is vertically arranged on the mowing part (3), and a flange member (12) is fixed to the drive shaft (11) by a key structure. And
The packer (4) is fitted onto the flange member (12), and the packer (4) is pressed against the flange member (12) by the disc spring (13) (corresponding to a friction holding mechanism).
As a result, when the packer (4) is clogged during rotational driving, slippage occurs between the packer (4) and the flange member (12) and the packer (4) stops.

Further, a bowl-shaped support member (14) is bolted to the upper surface of the packer (4), and the output shaft (15) is concentric with the drive shaft (11) at the upper end of the support member (14). Is fixed as. The tip of the output shaft (15) has a spline structure. In this case, in order to increase the concentricity of the output shaft (15) and the drive shaft (11), the tip (11a) of the drive shaft (11) is engaged with the output shaft (15). The drive shaft (11) and the output shaft (15) are not connected to each other, and the packer (4) slips without trouble when a jam occurs.

On the other hand, the first transfer device (5) is shown in FIGS.
As shown in the figure, the upper case (16) and the lower case (17) are connected, and the chain (18) is arranged on the outer peripheral portion between the upper and lower cases (16) and (17). And the locking claws (19) for conveying grain culms are attached to the chain (18) at intervals.

Then, as shown in FIG. 1, the support shaft (20) is fixed to the upper case (16), and the cylindrical input shaft (21) is attached to the support shaft (20) via the bearing (22). Has been. Furthermore, the inner surface of the input shaft (21) has a spline structure. The sprocket (23) is fixed to the input shaft (21), and the sprocket (23) is engaged with the chain (18). An opening (17a) is provided in a portion of the lower case (17) facing the input shaft (21), and an output shaft (15) on the packer (4) side is provided with an opening (17a) of the lower case (17). 17a) is inserted into the input shaft (21).

As described above, the power of the packer (4) is transmitted to the input shaft (21) by the spline fitting structure of the output shaft (15) and the input shaft (21).
The locking claws (19) of the transfer device (5) are simultaneously driven by the power of the drive shaft (11). When one of the packer (4) and the first transfer device (5) is clogged, a slip occurs between the packer (4) and the flange member (12), and the packer (4) and the first transfer device (5). (5)
Both stop.

Then, as shown in FIG. 2, the lower case (17) of the first transfer device (5) is connected to the support stay (25) extended from the frame (24) of the mowing section (3). One carrier device (5) is supported. This allows the support stay (2
When the connection between the lower case (17) and the lower case (17) is removed, the input shaft (21) shown in FIG. 1 can be pulled out from the output shaft (15) above the paper surface of the first transfer device (5). Upper case (1
The first transfer device (5) can be integrally removed without disconnecting the connection between 6) and the lower case (17).

In the above embodiment, the output shaft (15) and the input shaft (21)
The spline fitting structure of and may be replaced with a fitting structure using a key or an engaging structure using a groove and a pin. Alternatively, the output shaft (15) may be cylindrical and the input shaft (21) may be inserted into the output shaft (15). Further, the input shaft (21) may be attached to the lower case (17) so that the lower end of the input shaft (21) is projected downward from the lower case (17).

It should be noted that reference numerals are added to the claims of the utility model for convenience of comparison with the drawings, but the present invention is not limited to the structure of the accompanying drawings by the entry.

[Brief description of drawings]

The drawings show an embodiment of a grain culm transporting structure of a harvesting and harvesting machine according to the present invention. Fig. 1 is a cross-sectional view in the vicinity of a connecting portion between a packer and a first transporting device, and Fig. 2 is a threshing device from a reaping unit in a combine harvester. FIG. 3 is a schematic plan view showing a carrying system for the combine, FIG. 3 is a side view of a front half of the combine, and FIG. 4 is a cross-sectional view near a connecting part between the packer and the first carrying device in the conventional structure. (3) …… Mowing unit, (4) …… Rotating body, (5) …… Conveying device, (11) …… Drive shaft, (13) …… Friction holding mechanism,
(14) …… Supporting member, (15) …… Output shaft, (16), (1
7) …… Conveyor case, (19) …… Conveyor locking claw, (21) …… Input shaft.

Claims (1)

[Scope of utility model registration request] 1. A rotary body (4) for scraping grain culms is attached to a drive shaft (11) vertically arranged on a reaper (3) through a friction holding mechanism (13), and an output shaft ( 15) is fixed to the rotating body (4) via the support member (14) concentrically with the drive shaft (11), and the locking claws (19) for conveying grain stems are moved along the outer periphery. An input shaft (21) for driving the locking claw (19) is supported by the cases (16) and (17) of the transfer device (5) which is supported as much as possible, and the input shaft (21) is connected to the case (1).
6), a grain culm conveying structure for a harvesting harvester, which is exposed on the lower surface of the (17) and is configured such that the output shaft (15) and the input shaft (21) can be engaged / disengaged.