JPS6345862Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is a reaping system in which the standing stem culms are pulled up and reaped while being arranged, and the reaped stem culms are transferred to the threshing section while being laid down one after another by a conveyance mechanism. The present invention relates to a stem culm conveying device, and in particular to an improvement of a device capable of changing and adjusting the feeding depth of stem culms into a threshing chamber by tilting a part of the conveying mechanism.

The plant head lifting and transporting mechanism, which is a part of the reaped stem and culm transporting mechanism, is provided so as to be able to swing around a rotational fulcrum, and the angle of the mechanism can be changed as necessary using an operating mechanism. By adjusting the relative spacing at the joint with other stock transfer chain mechanisms and the joint with the threshing feed chain mechanism, the position where the stock base of the stem culm is held can be changed, and the stem culm can be treated as a threshing unit. Stem culm conveying and feeding devices with so-called length/short culm adjustment mechanisms are known, which are configured to adjust the chamber feeding depth.

Therefore, the above-mentioned stock head lifting and conveying mechanism (length/shortness adjustment mechanism) is composed of a transfer chain that is wound and suspended between wheels at both the upper and lower ends, and a pinching tool that corresponds to this transfer chain. The transfer chain is configured to be forcibly rotated by a transmission device linked to a drive source on the machine body side, and the stock head lifting and transfer mechanism with this configuration is incorporated into a combine harvester having an underchain-type threshing section. If this is to be carried out, another winding transmission device should be installed in parallel on the upper or lower side of the upper end of the above-mentioned winding transfer chain, and the transmission device from the aircraft side can be input and connected to this winding transmission device. Then, by operating the transfer chain via the wrapping transmission, a drive structure can be created that avoids interference with the starting end of the underchain type feed chain, or a mechanism for lifting and conveying the stock The drive structure is such that the tilting angle is simulated and the transmission is directly transmitted to the upper end wheel of the rotating transfer chain using a simple transmission device.

However, among these conventional structures, in the former structure, the presence of a wrap transmission device installed in parallel at the upper end of the feed chain causes a large distance between the starting end of the feed chain and the stock head lifting and conveying mechanism. This has the disadvantage of worsening the flow and succession of stem culms in the same area, and although the latter type has a simple transmission structure, it is difficult to set the tilting angle of the plant lifting and conveying mechanism from the beginning. Therefore, depending on the tilting state, there is a fatal flaw in that the transfer performance becomes worse than the former, and in any case, there is a flaw that becomes a practical obstacle.

Therefore, the present invention was carried out with the aim of providing a relatively simple configuration of a stem culm conveying and feeding device having a drive structure that can eliminate all of the above-mentioned deficiencies and a stem lifting and conveying mechanism. a grass-pulling mechanism disposed obliquely toward the upper rear; a cutting blade mechanism located at a lower rear portion of the pulling mechanism;
It has a raking conveyance mechanism located above the cutting blade mechanism, and a stock clamping conveyance mechanism provided from a position close to the terminal end of the raking conveyance mechanism toward the starting end of the feed chain mechanism of the underchain type threshing section. The stock head clamping and conveying mechanism is tilted at a rotating fulcrum near the underchain type feed chain mechanism to change the receiving and clamping position of the conveyed stem culm and change the depth of penetration into the threshing section handling chamber. In the combine harvester configured to be adjustable, the transfer chain of the stock clamping mechanism is configured by a single chain wrapped around a group of wheels provided on the frame so as to be located in the same plane. The transfer chain in the hanging state is arranged to be located at a longitudinally intermediate portion of the hanging transfer chain, and the transferring chain in the hanging state is extended from the rotation center located approximately directly below the under chain type feed chain, bypassing the starting end of the feed chain. The invention is characterized in that it is supported by a rotary support section, and the power is transmitted to the input wheel body through a drive shaft that is concentric with the center of rotation of the rotary support section.

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 shows a schematic left side view of a combine harvester according to the present invention, and the arrangement of each part of the combine is similar to that of a conventional combine harvester, and has the following general configuration.

In other words, it is formed by disposing a control section 3, an engine, a threshing section 4, etc. on a machine stand 2 supported by a running section 1, and a reaping section A installed in the front part of the machine stand 2 so as to be able to rise and fall freely. The threshing section has an underchain type feed chain mechanism B on one side, and a supply port is provided on the side facing the reaping section A. The reaping section A is divided from the front end of the reaping frame 5 toward the rear and upper side. Grass pulling mechanism 6
A cutting blade mechanism 7 is installed horizontally on the rear lower reaping frame 5 of the weed pulling mechanism, and the base of the stem culm is further raked from the front part to the rear at the upper part of the cutting blade mechanism 7. A raking conveyance mechanism C is provided, and the end of the conveyance is connected to the starting end of the feed chain mechanism B via the stock clamping conveyance mechanism D, and the ear tip conveyance mechanism 8 is provided from above the raking conveyance mechanism C toward the threshing section supply port. It is configured by providing.

The raking conveyance mechanism C of the reaping section A has a specific structure as partially enlarged in FIGS. 4 and 5. A support part 9 is already installed at a predetermined position of the reaping frame 5, and a star wheel 11, a star wheel 11,
Chain guide wheel 12, scraping belt winding wheel 13
are installed in a superimposed state, and a scraping protrusion 14 is provided between the uppermost scraping belt winding wheel 13 and another scraping belt winding wheel supported by another support member. At the same time, a scraping transfer chain 18 is wound around the middle chain guide wheel 12 with other wheels 16 and 17 installed correspondingly to the wheel. By forcibly rotating the stem culm with the drive shaft 19, the raking belt 15, the raking transfer chain 18, and the star wheel 11 are configured to interlock to rak and transfer the stem culm. An entanglement prevention drum 20 of an appropriate diameter is installed on the upper surface side of the star foil 11, and a part of the outer diameter of the drum 20 is provided with a guide that also serves as a cover 21 that covers the upper part of the above-mentioned hanging transfer chain 18. The anti-wrapping scraper 22 integrally extended from the plate is positioned close to the cover guide plate 21 so that the upper surface of the cover/guide plate 21 is substantially flat without any protrusions.

Furthermore, the stock head clamping and conveying mechanism D of the reaping section A is composed of a rotating transfer chain 23 and a corresponding clamping tool, and swings at a rotation center P located approximately directly below the threshing section feed chain B. Movable pivot support 24
By being tilted by an operating mechanism (not shown), the transfer end side approaches or moves away from the upper side of the starting end of the under chain 25 of the feed chain mechanism B, changing the stem culm clamping position at the time of inheritance. Accordingly, the stock holding and conveying mechanism D and its drive structure are constructed as follows in the present invention.

The transfer chain 23 of the stock clamping and conveying mechanism D has a wheel 2 installed on the frame 26 so as to be located on the same plane.
7, 28, 29..., and among the wheel groups, the wheel 29 located in the middle in the longitudinal direction of the transfer chain 23 is used as an input wheel. Transmission to the body 29 is performed by a transmission mechanism housed in the rotation support part 24, and a drive shaft 30 of the housing transmission mechanism.
is provided concentrically with the rotation center P of the rotation support part 24,
Furthermore, as best seen in FIG. 3, the rotary support portion 24 is formed to bypass the feed chain 25 and extend toward the stock clamping and conveying mechanism D.

When a combine harvester equipped with a device such as the one in the specific example is operated, the stem culm group that is divided and arranged by the weed pulling mechanism 6 is moved while its base is caught by the raking and conveying mechanism C. After being harvested by the cutting blade mechanism 7, the stem part is then held and conveyed by the same conveyance mechanism C, and the ears are carried and conveyed to the ear tip conveyance mechanism 8.
The stem side of the stem culm group to be transferred is then taken over by the stem clamping conveyance mechanism D and lifted up, and the stem culms are sequentially changed to a sideways posture, and the stem side of the stem culm group is transferred to the stem holding mechanism D. The feed chain mechanism B of the threshing section is supplied from the terminal end, and the ears are separated from the transfer terminal end of the ear tip conveying mechanism 8 and introduced into the handling chamber supply port of the threshing section.

The group of stem culms transported and supplied in this way always has variations in culm length, the volume of the culm and the panicle, and furthermore, there are differences in dryness and wetness. In order to properly thresh a group of stem culms with such differences, it is necessary to adjust the depth of penetration of the stem culms into the handling chamber according to changes in culm length, etc. This is carried out by tilting the transport mechanism D. In other words, if the stem clamping and conveying mechanism D is positioned as shown by the solid line in Figure 3 to transfer and feed the stem culm, the stem culm will be fed to the threshing section in a deep-handled state, and the stem culm will be conveyed by the operating mechanism (not shown). The mechanism D is tilted and adjusted, for example, as shown by the broken line in the figure. Then, the transfer mechanism D is positioned so that the transfer starting end side holds the part closer to the panicle, and the transfer end side to the feed chain mechanism B comes closer to the feed chain 25, so that the transfer mechanism D In the stem culm group that is treated, when the feed chain is delivered, the root of the plant will protrude outward and the depth of the panicle's penetration into the handling chamber will be changed to a shallower one.Conversely, if it is handled too shallowly, the root culm will be changed to a shallower depth when the feed chain is delivered. All that is required is to tilt the transport mechanism D.

By the way, in the present invention, the stock clamping and conveying mechanism D which is operated by tilting is constructed by having the transfer chain 23 wrapped around wheels 27, 28, 29, . . . provided on the same plane as a single chain. , the input wheel body 29 is located at the middle part in the longitudinal direction of the hanging transfer chain 23, and the transfer chain 23 is supported by a rotation support part 24 that extends around the starting end of the feed chain. Since the power is transmitted to the input wheel body 29 by the drive mechanism housed in the drive mechanism, and the feed chain mechanism B is connected to the feed chain mechanism B, the portion of the stock head clamping and conveying mechanism D that tilts as described above is extremely thin. As a result, the joint of the stem culm can be carried out smoothly and reliably at all times without causing any disconnection.

Since the present invention is constructed and operates as explained above in detail based on the specific examples,
By significantly improving the transfer performance at the stem culm junction between the tilt-adjustable plant clamping and conveying mechanism and the feed chain mechanism, we were able to eliminate all of the problems found in conventional equipment and achieve the purpose stated in the title. .

[Brief explanation of the drawing]

The drawings show a specific example of the present invention; Fig. 1 is a general schematic side view of the combine harvester according to the invention, Fig. 2 is a partially enlarged view thereof, Fig. 3 is a front view of the main part of Fig. 2, and Fig. 4 5 is a vertical partial view of the scraping conveyance mechanism, and FIG. 5 is a schematic plan view of the same mechanism. A...Reaping section, B...Feed chain mechanism, C
...Pulling conveyance mechanism, D...Stock clamping conveyance mechanism, 5
... Grass pulling mechanism, 7 ... Cutting blade mechanism, 4 ... Threshing section, 8 ... Ear tip conveyance mechanism, 23 ... Transfer chain,
24...Rotation support part, 25...Feed chain,
29...Input wheel body, 30...Drive shaft.

Claims (1)

[Scope of utility model registration request] A weed pulling mechanism 5 is provided obliquely from the front end of the cutting section A toward the upper rear, a cutting blade mechanism 7 is located at the lower rear of the pulling mechanism, and a scraping mechanism 7 is located on the upper part of the cutting blade mechanism 7. It is composed of a raking conveyance mechanism C, a stock clamping conveyance mechanism D, etc., which is provided from a position close to the terminal end of the raking conveyance mechanism toward the starting end of the feed chain mechanism B of the underchain type threshing section 4. ,
The stock head clamping and conveying mechanism D is tilted by the rotary support part 24 near the under chain type feed chain mechanism B to change the receiving and clamping position of the conveyed stem culm and change and adjust the depth of penetration into the threshing section handling chamber. In the combine harvester constructed as shown in FIG. 29 is located at the intermediate portion in the longitudinal direction of the hanging transfer chain 23, and the transfer chain 23 in the hanging state is rotated from the rotation center P located approximately directly below the under chain type feed chain 25, bypassing the starting end of the feed chain. A combine harvester characterized in that the input wheel body 29 is supported by a rotation support part 24 extending from the outside and is operated by being transmitted to the input wheel body 29 by a drive shaft 30 that is coaxial with the rotation center of the rotation support part. Reaped stem culm conveyance and feeding device.