JPS6038345Y2 - Grain culm clamping and conveying part structure in a combine harvester - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a structure for holding and conveying a culm in a combine harvester.

Conventionally, a stump head conveyor that conveys the stump side between the culms was installed obliquely in front of the threshing device, and its terminal end was placed close to the starting end of the foot chain of the threshing device. In response to this, a combine harvester equipped with a clamping rod and a guide rod above the stock conveyor was developed in 1973.
It is known from Publication No. 95124 and the like.

However, in these cases, the working length of the guide rod is shorter than the working length of the clamping rod, so the culm reaching the end of the stock carrier is not tilted horizontally enough to reach the starting end of the foot chain. When inheriting the culm, disordered culm posture and culm spillage are likely to occur.
Furthermore, since there is no mechanism for receiving and guiding the tip side at a position corresponding to the stock carrier, there are drawbacks such as hanging and shedding of the tips due to drooping of the tips.

The purpose of the present invention is to eliminate these drawbacks, to provide a new clamping and conveying section structure that can prevent the culm posture from being disturbed and from shedding during conveyance and inheritance, and which can perform the threshing action with a stable handling depth. do.

Next, the embodiment shown in the drawings will be described.

FIG. 1 shows a side view of the front part of a combine harvester, in which a threshing device 1 of a conventional structure having a foot chain 2 and a feed port 5 is mounted above a track type traveling body 4, and a threshing device 1 of a conventional structure is mounted in front of the device 1. A transverse transmission case 6 at the rear of the section is supported by a metal 7.7 and is rotatably installed, and the reaping conveyance section is rotated around the transmission case 6 to move up and down. , so that power is transmitted from the mission case 8 via the belt 9 to the side pulley 10 of the transmission case 6 to drive the reaping conveyance section.

In addition, two pipes 1 extending forward from the transmission case 6
The cutting blade 13 is placed in front of the cutting table 12 supported by 1.11'.
14.1 horizontally installed and three grass dividing boards installed in parallel at the front.
4', 14'' are supported by the cutting stand 12, and the grass division plates 14,
There are tines 15 and 15' behind the 14' and 14" respectively.
Lifting cases 16 and 16' are installed in parallel and obliquely, and a tip conveying sprocket 17 is vertically installed at the rear of the upper side of the right side lifting case 16'. A pair of mutually retracting star foils 18.18'
Install and configure.

A is a stock conveyor, which extends around the front idler wheel 19, the rear idler wheel 20, 20', and the drive wheel 21 supported by the supporter C, and also has a working surface 22 on both sides of the supporter C; It is hung so that it can slide along the non-working surface 23, and a clamping rod 3 is provided oppositely corresponding to the working surface 22 side. Support rods 26, 26 of the pincer rod 3 are supported by a bullet 27゜27 interposed on the supported support 25, and a tip guide rod 29 is supported on the support 25 via a support rod 28゜28. It extends to gently intersect the clamping rod 3 in plan view on the upper side of the stock carrier A, and the clamping starting point is between the tip curved part 3a of the clamping lever 3 and the starting end of the stock base carrier A. A is constructed.

In side view and plan view, the starting and ending ends of the pincer rod 3 and the tip guide rod 29 are provided at approximately the same position in the longitudinal direction of the machine body.

Also, move the stock carrier A etc. to the front of the threshing device 1 so that the starting point A is behind the scraping star wheels 18, 18, and the terminal end 30 on the idler wheel 20 side is close to the starting end side of the foot chain 2. Although installed diagonally, the lower part of the transmission pipe 31 that drives the upper drive wheel 21 is connected to a case 32 that can freely rotate with respect to the side of the transmission case 6, and an operation lever that moves up and down along a guide 33 is provided. 34, the operating mechanism 35 is provided so that the inclination of all the stock carriers A and the like can be changed and adjusted.

A support plate 37 fixed to the upper surface of the support C made of sheet metal with bolts and nuts 36 is extended to above the stock base carrier A portion on the side of the non-working surface 23, and a tip guide support plate B is attached to the support plate 37 by spot welding. The guide support plate B is long along the non-working surface 23 side, and has a cover portion 39 that can bend its lower part into a U-shape to cover the stock carrier A on the non-working surface 23.
At the same time, the upper part is formed into a swash plate part,
The slant plate portion extends so as to correspond to the guide rod 29, and is mounted so that the tip side portion of the culm 38 that is pinched and conveyed by the stock carrier A leans against the swash plate portion. do.

Note that the terminal end of the tip guide rod 29 is shaped like a roadside, and is bent substantially parallel to the foot chain 2 in plan view and side view.

However, in combine harvester work, the grass dividing plate 14.1
The two culms separated by the weeds 4' and 14'' are pulled up by the tines 15 and 15' of both lifting cases 16 and 16', and are cut by the cutting blade 13 and cut by the cutting star wheels 18 and 18. ', and the stump side portion of the culm 38 is conveyed from the clamping starting point A by being held between the stump base conveyor A and the clamping rod 3 and lifted upward.

In this state, as shown in Figure 5, the tip side is connected to the tip guide rod 2.
The culm is conveyed while being pressed by a presser while being guided by the tip guide support plate B, and the entire culm is raised while being held in a horizontal position, and the root side is raised. The grain is fed from the terminal end 30 to the starting end of the foot chain 2, and the tip side is fed to the supply port 5, where it is fed to the threshing device 1 as shown in FIG.

When adjusting the supply state to the threshing device 1 according to the length of the shell culm, by operating the operating lever 34 in the up and down direction,
Via the operating mechanism 35, the rods 3, 29 of the stock carrier A1 and the guide support plate B rotate together around the case 32 to change the inclination, and the position of the clamping starting point A also changes in the vertical direction. At the same time, the position of the terminal end 30 is also changed as shown by the imaginary line in FIG. 3, and the inheritance position is changed.
The feeding depth can be adjusted to be constant depending on the length of the culm.

As described above, since the present invention is characterized by the configuration described in the claims, it achieves the following excellent effects.

■ Since the tip guide rod 29 gently intersects with the pincer rod 3 in plan view, and the working lengths of both rods 29 and 3 are approximately the same, the cut culm is located at the base of the stock and at the tip. Both sides are transported in a well-held state, and during this transport, the tip side is gradually tilted, and the tipped culm is smoothly transferred from the end of stock transporter A to the start of foot chain 2. Because the material can be removed, there is no disruption in transportation or unhandled items.

■ Moreover, the tip guide rod 29 is extended from the support metal 25.
are arranged oppositely along the tip guide support plate B, so that when the tip side is gradually tilted during transportation, the tip is prevented from drooping, bent, or lifted, and the conveying posture is stabilized. Shedding due to catching or ironing is also avoided.

■Furthermore, the terminal end of the tip guide rod 29 is shaped like a free end and extends substantially parallel to the foot chain 2 in plan view, so that the terminal end of the tip guide rod 29 is extended from the terminal end of the stock carrier A to the starting end of the foot chain 2. During or after inheritance, the tip of the shell culm is smoothly fed to the threshing device 1 without being pulled out or squeezed toward the tip, which prevents problems such as uneven handling depth, torn culms, and shedding. does not occur.

■ As a result of the above, there is no disturbance in the posture of the culm, no pulling out of the culm, no clogging, no shedding, etc. during transportation and inheritance, and the threshing action can be performed at a stable handling depth.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which Fig. 1 is a side view of the front part of the combine, Fig. 2 is a plan view thereof, Fig. 3 is a front view of a part thereof, and Fig. 4 is a top view of the main part. , FIG. 5 is a cross-sectional view of a part of FIG. 4, FIG. 6 is a plan view showing only the main parts, and FIG. 7 is an explanatory view seen from the front. 1... Threshing device, 2... Foot chain, 3... Pincer rod, 25... Support money,
28... Support rod, 29... Tip guide rod,
A: Stock base conveyor, B: Spike tip guide support plate.

Claims (1)

[Scope of Claim for Utility Model Registration] Thresher 1 is a stock transporter A that pinches and conveys the stock side of grain culms.
is installed diagonally in front of the threshing machine I, and its terminal end is placed close to the starting end of the foot chain 2 of the threshing device I, and the transport body A
A shell culm in a combine harvester in which a pincer rod 3 is attached corresponding to the conveying surface of the combine harvester, characterized in that a tip guide rod 29 having the following requirements a to e is provided above the conveying body A. structure of the clamping and conveying section. a: The tip guide rods 29 are arranged oppositely along the tip guide support plate B, which is installed obliquely above the stock base carrier A. b: The tip guide rod 29 is supported via a support rod 28 by a support 25 that presses and supports the pincer rod 3 toward the stock base conveyor A side. C: The tip guide rod 29 gently crosses the pincer rod 3 in plan view. d: The starting and ending ends of the tip guide rod 29 are at approximately the same position in the front-rear direction as the starting and ending ends of the pincer rod 3 in side view. e The terminal end of the tip guide rod 29 is free and extends substantially parallel to the foot chain 2 in plan view.