JP3359803B2 - Pre-processing part of combine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a raising device
The drive-side scraping rotator and the driven-side scraping rotator are arranged side by side above the reaper behind (8) such that the driven-side scraping rotator is positioned on the threshing feed chain side in the left-right direction. The present invention also relates to a combine pre-processing unit configured to scrape the roots of a plurality of raised and cut grain stalks backward, to join them together, and to feed them to the starting end of a vertical conveying device.

[0002]

2. Description of the Related Art Conventionally, in the pre-processing section of the combine, as described in Japanese Patent Application Laid-Open No. Hei 7-184452, the driven-side scraping rotary member is supported by a support member extending from a cutting frame. It was supported from below so that it could roll freely.

[0003]

According to the above-mentioned conventional construction, the supporting portion of the support member extends below the driven-side raked rotating body, and the support unit of the reaping device and the driven-side raked rotating body are accordingly extended. The space between them was narrow.

[0004] In the pretreatment section of this type of combine, the driven-side scraping rotary body is positioned on the threshing feed chain side in the left-right direction, and the grain culm is gathered to the driven-side scraping rotary body side. While being transported backwards, waste straw and mud are also easily brought into the space together with grain culm, but in the configuration where the space is narrowed as in the conventional case, waste straw and mud are clogged there and grain culm is removed. In some cases, it was difficult to transport the product smoothly.

[0005] It is an object of the present invention to make it difficult for waste straw and mud to be clogged in the space between the reaping device and the driven-side squeezing rotary body, so that grain culms can be transported smoothly. .

[0006]

[Means for Solving the Problems]

[Structure] The characteristic structure of the invention according to claim 1 is that, in the pre-processing unit of the combine described above, the rising frame that supports the driven-side scraping rotary member from below in the raising device.
L-shaped support member extending sideways from the
The support member is supported as a support shaft so as to be freely rotatable.

A feature of the invention according to claim 2 is that the mowing device is configured as a clipper type, a drive shaft of the driving-side scraping rotary body is extended downward, and the mowing device is attached to an extended end thereof. The cutting blade crank for reciprocating the movable blade of the device is interlocked and connected.

[Operation] According to the structure of the first aspect, the driven-side scraping rotary body is pulled
Side from the rising frame that supports the raising device from below
A downwardly extending L-shaped support member extending in the direction
Since it is freely suspended and supported as a support shaft, there is no one that protrudes below the driven-side scraping rotator,
The space between the reaper and the driven-side scraping rotary body is widened.

According to a second aspect of the present invention, the mowing device is configured as a clipper, and a drive shaft of the driving-side scraping rotary body is extended downward, and the extending end of the mowing device is provided with the mowing device. Since the cutting blade crank that reciprocates the movable blade is interlockingly connected, the structure around the cutting blade crank can be simplified, and for example, a rod that connects the drive shaft of the driving-side scraping rotary body and the cutting blade crank, The space can be made wider than when it is arranged in the space between the reaper and the driven-side rake rotating body. A cutting blade crank or the like protrudes below the driving-side raking rotator, but the grain stalks are conveyed obliquely backward while being gathered toward the driven-side raking rotator. The composition has little effect on waste straw and mud clogging.

[Effect] Therefore, according to the configuration of the first aspect, the space between the reaping device and the driven-side scraping rotating body is hardly clogged with straw and mud, and the grain culm can be smoothly transported. Now you can.

According to the configuration of claim 2, in addition to the above-mentioned effects of the configuration of claim 1, the structure can be made compact.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows the front of the combine. This combine is a pair of left and right crawler traveling devices 1
The threshing device 3 and the control unit 4 are mounted on the body frame 2 supported by
And a pre-processing unit A is attached to the front end of the body frame 2.

As shown in FIG. 1 and FIG.
And three fixed weeding tools 7, a pair of right and left elevating devices 8 for raising the falling grain culm to the upright position, a clipper-type cutting device 5, and a raking transport mechanism 6 for scraping the harvested grain culm. A vertical transport device 10 for transporting and feeding the raked harvested culm to the start end of the threshing feed chain 15 is supported by a cutting frame 11 that can swing vertically about a horizontal axis X on the rear side. It is. The reaping frame 11 controls the entire preprocessing unit A.
This is a generic term for supporting frames, including fixed weeding tools 7 and reapers.
The lower frame supporting the device 5 and the raising device 8
Frame, the entire pre-processing section including the vertical transport device 10
Main frame for swinging around the horizontal axis X
And the like.

The scraping transport mechanism 6 includes a gear-shaped driving-side scraping rotator 9A and a driven-side scraping rotator 9B, which are in mesh with each other. in the state that is located on the side, cause this
A pair of left and right auxiliary rakes, which are arranged side by side above the reaper 5 behind the cutting device 8 and have a belt 14 with locking claws wound around a large-diameter pulley 20 on the rear side and a small-diameter pulley 20 on the front side. The conveying devices 12A and 12B are extended obliquely forward from above the raking rotators 9A and 9B to the front of the mowing device 5, and the root side of the plurality of raised and cut grain stems is scraped on the driven side. It is configured to be raked and merged on the side of the rotator 9B and fed to the start end of the vertical transport device 10.

As shown in FIG. 3, the driven scraping rotary body 9B is raised obliquely forward and upward from the lower frame.
Construct a cutting frame 11 that supports the raising device 8
Downward L-shaped support extending laterally from the rising frame
The member 13 is supported so as to be freely rotatable around the support member 13 as a support shaft, so that a wide space S is formed between the reaper 5 and the driven-side scraping rotator 9B.

In the auxiliary scraping and conveying devices 12A and 12B, the periphery of the small-diameter pulley 20 is configured as follows. That is, as shown in FIGS.
A pair of front and rear long holes 22a and 22b are formed on the longitudinal axis on the front end side, and one end is bent into a triangular scraper part 23a in a plan view, and is a substantially J-shaped scraper member 23 in side view. Of the transfer frame 22 on the lower surface of the front end of the transfer frame 22, and an adjustment bracket 25 with a knob 25c
A pin 25a integrally provided in a cantilever shape on the front end side of the scraper member 23 is provided with a pin insertion hole 23b formed at an end of the scraper member 23 opposite to the scraper portion 23a.
And a bolt insertion hole 25b formed on the rear end side of the adjusting bracket 25, and the elongated hole 22 on the rear side.
b and a nut 23c fixed to the inner surface of the end of the scraper member 23 on the side of the scraper portion 23a, the adjusting bolt 26 is inserted and screwed together, and the scraper member 23 is fixed to the transport frame 22. When the pin 2 is inserted into the pulley groove of the small-diameter pulley 20,
5a rotatably supports the small-diameter pulley 20 and the belt 1
4 can be changed and adjusted freely, and even if the change is adjusted, the pulley groove of the small-diameter pulley 20 and the scraper portion 23 can be adjusted.
It is configured so that there is no relative movement with a. Large diameter pulley 2
On the 0 side, a scraper member 27 is provided in a position fixed state.

As shown in FIGS. 6, 7, and 8, the mowing device 5 is configured as a clipper type that operates by the relative lateral sliding of the fixed blade 17 and the movable blade 18, and the driving-side scraping rotary member 9A Of the drive shaft 16 is extended downward, and at its extended end,
Cutting blade crank 1 for reciprocating the movable blade 18 of the cutting device 5
9 are interlockingly connected.

As shown in FIG. 1, the vertical transport device 10 comprises:
It is composed of a tip locking and conveying mechanism 10A and a stock holding and conveying mechanism 10B, and is configured to be swingable up and down around a left-right fulcrum X at a rear portion thereof so as to be able to adjust the handling depth.

In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration shown in the accompanying drawings.

[Brief description of the drawings]

FIG. 1 is an overall side view of a combine.

FIG. 2 is a plan view showing a scraping transport mechanism.

FIG. 3 is a vertical cross-sectional front view showing a support structure of a driven-side scraping rotary body.

FIG. 4 is a longitudinal sectional side view of the auxiliary scraping transfer device.

FIG. 5 is a plan view of an auxiliary scraping transfer device.

FIG. 6 is a side view of a preprocessing unit.

FIG. 7 is a longitudinal sectional side view showing the reaper.

FIG. 8 is a conceptual diagram showing a drive system of a reaper and the like.

[Explanation of symbols]

Reference Signs List 5 Cutting device 9A Drive-side scraping rotating body 9B Driven-side scraping rotating body 10 Vertical transport device 11 Cutting frame 13 Support member 15 Threshing feed chain 16 Drive shaft 17 Movable blade 19 Cutting blade crank

Claims (2)

(57) [Claims] 1. A driving-side scraping rotator (9A) and a driven-side scraping rotator (9B) are arranged behind the raising device (8) and above the mowing device (5). The rotating body (9B) is a threshing feed chain (1
5) A combine which is arranged side by side so that the root side of a plurality of raised and cut grain stalks is rubbed backward and merged and sent to the starting end of the vertical transport device (10). a pre-processing unit, the driven scraping rotating body (9B), the cause stiffness instrumentation
From the rising frame that supports the mounting (8) from below
The support member (13) having a downward L-shape extending to
A pre-processing unit of the combine which is supported by a member (13) as a support shaft so as to freely rotate. 2. The mowing device (5) is configured as a clipper type, and the driving shaft (1A) of the driving-side scraping rotating body (9A) is provided.
2. A combiner according to claim 1, wherein the cutting blade is extended downward, and a cutting blade crank for reciprocating a movable blade of the cutting device is interlocked to an extending end of the cutting blade. Pre-processing unit.