JPH051231Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a support structure for the pre-processing part of a combine harvester, and more specifically, the present invention relates to a support structure for the pre-processing part of a combine harvester, and more specifically, it is capable of rolling freely and rising and lowering for a car body equipped with a threshing device equipped with a feed chain. The present invention relates to a combine harvester in which a pre-processing section is formed.

[Conventional technology]

Generally, combine harvesters are equipped with a grain tank, etc., for storing grain on one side of the vehicle body, so during harvesting, the side with the grain tank, etc. tends to sink significantly into the field, causing the vehicle body to tilt. In order to correct this, a combiner with the configuration described above can be devised relatively easily.

[Problem that the invention attempts to solve]

Now, considering a threshing device equipped with a feed chain, in a car body on which a threshing device with this structure is mounted, the feed chain is located outside the car body.

Therefore, it is conceivable to position the rolling axis near the feed chain in order to suppress fluctuations in the distance from the pre-processing section to the feed chain during rolling operation. If the core is set to be offset to the side of the vehicle body, a biased load will be applied to the rolling support shaft compared to a case where the rolling shaft center is set at the lateral center of the pretreatment section. ,
More robust support structures are required.

Therefore, it is possible to improve the support strength by increasing the support span of the rolling spindle, but if the support span is set large, the amount of forward deviation of the pretreatment section relative to the car body will increase, causing the entire combine to This will result in an increase in front-to-back length.

An object of the present invention is to provide a robust support structure for the preprocessing section of a combine while setting the support span in the direction of the rolling axis to be as small as possible.

[Means for solving problems]

The feature of this invention is that the pre-processing section mounting base is fixedly installed on the vehicle body side, and the support member that pivots the pre-processing section so as to be able to swing up and down, is installed at a point close to the feed chain of the threshing device mounted on the vehicle body. The pretreatment section is connected to be swingable around an axis in the front-rear direction to support the pretreatment section in a rolling manner relative to the vehicle body, and the other is connected to at least one of the pretreatment section mounting base and the support member in the direction of the axis. The function and effect of the reinforcing part are as follows.

[Effect]

When the above characteristics are configured as shown in FIGS. 1 and 2, for example, the weight of the pretreatment section B acting outward from the vehicle body on the front end of the rolling support shaft 8 will cause the support member 9 to It is received by the reinforcing parts 7a, 7a.

In other words, in order to prevent relative displacement in the direction of the rolling axis R between the pretreatment unit mounting base 7 and the support member 9, which are in a state where it is easy to obtain a relatively large dimension in the left-right direction of the vehicle body A, By simply setting the distance between the reinforcing portions 7a, 7a appropriately, a large load can be easily received without increasing the strength of the rolling support shaft 8.

[Effect of idea]

Therefore, the support structure for the pre-processing part of the combine was obtained in a robust state, although the support span in the direction of the rolling axis was not set too large.

In particular, in the present invention, since the structure is prevented from increasing in size, the length of the combine harvester as a whole can be reduced.

〔Example〕

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

As shown in FIG. 4, a combine harvester is constructed by connecting a pre-processing section B to the front end of a vehicle body A on which a threshing device 1 equipped with a feed chain 1a is mounted.

As shown in the figure, the pre-processing section B supports a plurality of weed cutting tools 2, a plurality of pulling devices 3..., a clipper-type reaping device 4, a vertical conveyance device 5, and these devices, and also supports The reaping device 3... comprises a cylindrical frame 6 in which a transmission shaft 6a for supplying power to the reaping device 4 is installed, and the pre-processing section B is connected to the vehicle body A via a support structure described in detail below. By being
It is configured to be capable of driving up and down and driving rolling.

That is, as shown in FIG. 1 and FIG. 2, an axis R (hereinafter referred to as rolling A support shaft 8 is disposed coaxially with the axial center (referred to as an axis), and a support member 9 is swingably connected to the preprocessing unit mounting base 7 via the support shaft 8.

The support member 9 has a drive shaft 10a in a horizontal position.
A drive case 10 containing a drive shaft 10a is mounted so as to be swingable around the axis X of the drive shaft 10a, and the base end of the cylindrical frame 6 is connected to the drive case 10, as shown in FIG. As shown in the figure, a hydraulic cylinder 11 is interposed between the front end of the vehicle body and the cylindrical frame 6.
The pretreatment section B is configured to swing up and down around the axis X by the operation of the pretreatment section B.

As shown in the figure, there is also a hydraulic cylinder 12 between the end of the support member 9 in the vehicle body direction and the vehicle body A.
is interposed therein, and the pretreatment section B is configured to be rolled around the rolling axis R by the operation of the hydraulic cylinder 12.

As shown in FIG. 3, the power from the drive shaft 10a is transmitted to the transmission shaft 6a installed in the cylindrical frame 6 via a first bevel gear mechanism 13, and to the vertical conveyance device via a second bevel gear mechanism 14. 5, and this drive shaft 10a has a
an intermediate shaft 16 which is disposed substantially parallel to the shaft and has universal joints 15, 15 interposed between the shafts; and pulleys 17, 1 provided at the respective shaft ends.
7. A transmission system is formed to transmit power from the vehicle body through the belt 18 wound around these;
During the rolling operation, the axis of the pulley 17 on the intermediate shaft 16 side is displaced in conjunction with the displacement of the drive shaft 10a, so that the relative positional relationship between the two pulleys 17, 17 is not changed. There is.

Incidentally, as shown in FIG. 5, the rolling axis R extends between the vicinity of the feed chain 1a and the position of the weeding tool 2 at the left end of the vehicle body. It is set in a forward downward position.

In this support structure, in order to improve the support strength without setting the length of the support shaft 8 too large, the support member 9 is connected to the rolling axis R.
Reinforcing portions 7a, 7a sandwiching in the direction are formed on the pre-processing portion mounting base 7.

[Another example]

In addition to the above-described embodiments, the present invention can be implemented by forming a reinforcing portion on the support member side, or forming reinforcing portions on each of the pre-processing unit mount and the support member.

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 drawings]

The drawings show an embodiment of the preprocessing part support structure of a combine according to the present invention, FIG. 1 is a cross-sectional view showing the positional relationship between the preprocessing part mount and the support member, and FIG. 2 is a part showing the rolling structure. Fig. 3 is a plan view schematically showing the drive system of the rolling section; Fig. 4 is a cutaway front view;
The figure is a side view of the front part of the combine, and FIG. 5 is a schematic plan view of the front part of the combine. 1... Threshing device, 1a... Feed chain,
7...Pre-processing part mounting base, 7a...Reinforcement part, 9...
Support member, A...vehicle body, B...pretreatment section, R...
Axial core.

Claims (1)

[Scope of utility model registration request] A pre-processing part mounting base 7 fixedly installed on the vehicle body side and a support member 9 supporting the pre-processing part B so as to be vertically swingable,
The pre-processing section B is supported in a rollable manner relative to the vehicle body A by being connected to be swingable around an axis R extending approximately in the front-rear direction at a location near the feed chain 1a of the threshing device 1 mounted on the vehicle body A. In addition, a reinforcing part 7 is inserted between at least one of the pretreatment part mounting base 7 and the support member 9, the other being inserted in the direction of the axis R.
The pre-processing part support structure of a combine formed with a and 7a.