JPS6138421Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a paddy backflow device in a paddy conveying device of a combine harvester.

Conventionally, one screw conveyor was placed below the sorting machine in a combine, running transversely in the direction of the sorting flow.
No. 1 conveyor, No. 2 conveyor, etc. will be constructed.
The end of the No. 2 conveyor is connected to the grain lifting cylinder, and the end of the No. 2 conveyor is connected to the return cylinder to the threshing section. This can cause clogging in the grain cylinder and return cylinder, and the screw conveyor itself may also become clogged with paddy, making it impossible to transport. To clear such clogging, insert your hand from outside the sorting unit case. The clogged paddy was removed from the No. 1 gutter, No. 2 gutter, etc.

In this invention, the pulley installed at the shaft end of the screw conveyor is equipped with a manual pulley rotation mechanism that can be rotated in the opposite direction, so that when the above-mentioned clogging phenomenon occurs, the screw conveyor is reversed and conveyed. It makes it easier to remove clogged paddy etc. by refeeding the paddy etc. in the opposite direction, and also quickly removes the remaining grains from the previous operation when switching to a different type of grain to be threshed or sorted. It is an object of the present invention to provide a paddy backflow device in a combine harvester's paddy transport device that can remove and recover paddy.

An example of this invention will be explained in detail based on the drawings.
A shows a combine harvester, which has a reaping section 1 at the front, a threshing section 2 at the rear, and a sorting section 3 below.
are provided respectively, and the grain culms are harvested, threshed, and sorted while traveling by a running section 4 provided at the bottom of the machine.

5 is a feed chain provided in the threshing section 2. 6 indicates the handling cylinder.

In the sorting section 3, as a swinging sorting mechanism, a feed van 7, a chaff sheave 8, a grain sieve 9, a stroke rack 10, etc. are provided so as to be able to swing together. A No. 1 conveyor 11 that conveys grains and a No. 2 conveyor 12 that conveys No. 2 grains are installed as screw conveyors so as to cross the sorting direction.

13 is the No. 1 gutter of the No. 1 conveyor 11, which is connected to the No. 1 grain board 14, and 15 is the No. 2 gutter of the No. 2 conveyor 12, which is connected to the No. 2 grain board 16. There is.

The conveyance end of the No. 1 conveyor 11 is connected to the lower end of the grain lifting cylinder 17, and the fine grains are fried to the top picker 19 by the grain frying screw conveyor 18 in the grain lifting cylinder 17. The conveyor end of No. 2 conveyor 12 is connected to the reduction cylinder 20.
The mixture of grains, grains, etc. is returned to the threshing section 2 for re-threshing and sorting.

No. 1 conveyor 11 as a screw conveyor
To explain the embodiment of the present invention using as an example, a pulley 22 is provided at the end of the conveyor shaft 21 on the conveyance start end side of the No. 1 conveyor 11, and a belt 23 is suspended on the pulley 22 as an interlocking mechanism. The belt 23 is actuated by the prime mover via a predetermined interlocking mechanism to rotate the pulley 22 in a fixed direction, thereby imparting rotation to the No. 1 conveyor 11 that allows the paddy to be conveyed to the conveyance end.

As mentioned above, the pulley 22 is operated to rotate the No. 1 conveyor 11 in a fixed direction by an interlocking mechanism via the belt 23, but the pulley 22 is separately provided with a manual rotation mechanism a.
The manual rotation mechanism a allows the pulley 22 to be manually rotated in the opposite direction, and by manually rotating the pulley 22 in the opposite direction, the No. 1 conveyor 11 rotates the grains in the opposite direction to the grain lifting cylinder 17. It rotates for conveyance.

As shown in FIG. 2, the manual rotation mechanism a includes a mounting hole 24 provided in the ring portion 22-1 of the pulley 22, so that the base end of a separately provided manual handle 25 can be freely inserted into the mounting hole 24. If necessary, a manual handle 25 is connected to the ring portion 22-1 of the pulley 22 through the mounting hole 24, and the pulley 22 is manually rotated in the reverse direction.

In addition, as shown in FIGS. 6 and 7, the pulley 22
In some cases, the base end of the manual handle 25 is connected to the ring portion 22-1 of the pulley 22 from the beginning, and as shown in FIGS. A handle attachment protrusion 27 is provided for attachment, and the proximal end of the manual handle 26 is configured to be detachably attached to the protrusion 27. 28
connects the base end of the manual handle 26 to the handle attachment protrusion 27
This is the locking protrusion when attached to the

29 is the lower base end of the No. 1 gutter 13, that is, the 1
This is an opening/closing lid provided at the end of the pulley 22 side of the No. 1 conveyor 11, and when the manual rotation mechanism a is operated, the No. 1 conveyor 11 rotates in the reverse direction to perform a reverse conveyance operation toward the base end of the No. 1 gutter 13. When the paddy etc. are transported to the base end of the No. 1 conveyor 11, the opening/closing lid 29
The lid is opened and the rice, etc. that have been transported backwards are dropped downward to be collected.

Reference numeral 30 denotes a side wall forming the sorting section 3. On the side wall 30, an extraction box 31 for recovering paddy located below the above-mentioned opening/closing lid 29 is provided so as to be freely extractable.

Reference numeral 32 denotes an outer wall body, and an external opening/closing lid 33 is provided in a portion of the outer wall body 32 opposite to the position of the pulley 22 and extraction box 31 so as to be openable and closable. When recovering paddy etc. that has been transported in the opposite direction, use the external opening/closing lid 3.
3 is opened so that work can be performed from outside the combine harvester A.

Incidentally, it is of course possible to provide the manual rotation mechanism a on the second conveyor 12 in addition to the first conveyor 11.

The embodiment of this invention is constructed as described above, and to explain its operation, in normal threshing and sorting work, while the combine harvester A is traveling by the traveling part 4, the grain culm is removed by the reaping part 1. The grains are harvested, threshed and sorted by the threshing section 2 and the sorting section 3, and the fine grains sorted by the sorting section 3 are conveyed to the grain lifting cylinder 17 by the No. 1 conveyor 11. When conveying a large amount of grains, if the grains become clogged at the lower end of the No. 1 conveyor 11 or the grain lifting cylinder 17, the rotation of the No. 1 conveyor 11 is stopped, the belt 23 is removed, and the external opening/closing lid 33 is closed. Open the lid and use the manual handle 2 as manual rotation mechanism a.
5, 26, etc., the pulley 22 is rotated in the opposite direction, and the No. 1 conveyor 11 carries out the conveyance operation in the opposite direction to the normal paddy conveyance direction, and the clogged grains are transferred to the base end of the No. 1 conveyor 11. Transfer it back to the section and open/close lid 2.
9 is opened and dropped into the extraction box 31 below and collected. After collection, the No. 1 conveyor returns to its original state and performs the normal conveyance operation of the No. 1 conveyor. When used, it is used not only when grains become clogged, but also when changing operations when harvesting different types of crops with the same combine harvester.

According to this invention, in the paddy conveying device of a combine harvester, a manual rotation mechanism for the pulley is provided so that the pulley can be manually rotated in a direction opposite to the paddy recovery rotation direction of the screw conveyor. If the No. 1 or No. 2 conveyor is clogged with paddy,
By reversing the pulley, the clogged paddy can be conveyed in the return direction and easily discharged, and when the combine harvester is stored once the harvesting work is finished, the No. 1 conveyor can be reversed and the fried grain connected to the same conveyor can be removed The stored paddy in the cylinder can be discharged out of the machine by rotating the grain frying screw conveyor in the opposite direction along with the No. 1 conveyor, which increases the efficiency of paddy recovery, and also enables harvesting of different types or varieties of crops with the same conveyor. If this is done, when switching between different harvested crops, the paddy etc. in the machine during the previous operation can be discharged to prevent contamination with different types of crops.

[Brief explanation of the drawing]

FIG. 1 is a partially sectional side view of a combine harvester having the present device. FIG. 2 is an enlarged sectional view taken along the line of FIG. FIG. 3 is a sectional view taken along the line of FIG. 2. Fourth
The figure is a front view of another embodiment. FIG. 5 is a side view of the same. FIG. 6 is a front view of another embodiment. Figure 7 shows
Same side view. A: combine harvester, a: manual rotation mechanism, 1: reaping section, 2: threshing section, 3: sorting section, 4: traveling section, 5:
Feed chain, 6: Handling cylinder, 7: Feed van, 8: Chaff sheave, 9: Grain sheave, 1
0: Stroll rack, 11: No. 1 conveyor, 1
2: No. 2 conveyor, 13: No. 1 gutter, 14: No. 1 grain board, 15: No. 2 gutter, 16: No. 2 grain board, 17:
Grain frying tube, 18: Grain frying screw conveyor, 19:
Topsatsu car, 20: Reduction cylinder, 21: Conveyor shaft, 22: Pulley, 23: Belt, 24: Mounting hole, 25: Manual handle, 26: L-shaped manual handle, 27: Handle attachment protrusion, 28: Attachment Stop protrusion, 29: Opening/closing lid.

Claims (1)

[Scope of utility model registration request] In a paddy conveyance device for a combine harvester A, a first conveyor 11 for conveying sorted paddy is installed below the sorting section 3, and power is transmitted to a pulley 22 provided at the shaft end of the conveyor 11 via an interlocking mechanism. ,
A manual rotation mechanism for the pulley 22 is provided so that the pulley 22 can be manually rotated in a direction opposite to the paddy recovery rotation direction of the conveyor 11. An opening/closing lid 29 that can be opened and closed is provided near the base end on the opposite side to the paddy conveying direction during paddy sorting work, and the opening/closing lid 29 is
9. A paddy backflow device in a combine harvester's paddy conveying device, in which a extractor box 31 that can be freely extracted is disposed below the paddy extractor 9.