JPH0425940Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) The present invention is a conveying device for a combine harvester, more specifically, a conveyor for transporting grain harvested by a harvesting device in a combine to a handling barrel using a conveyor installed in a feeder house. Regarding equipment.

(Prior art) Conventionally, for example, in a general-purpose combine harvester,
A conveying device comprising a conveyor installed in a feeder house is provided between a reaping device provided at the front of the machine and a threshing device provided at the top of the machine, and the crops harvested by the reaping device are sent to the threshing device via the conveyor. , the threshing process is carried out by a handling cylinder in the threshing device.

(Problems to be Solved by the Invention) By the way, in the above-mentioned conventional conveying device, there is a conveyance transfer space between the conveyor and the handling cylinder at the conveyance end side of the conveyor. During the conveyance of the crops, the crops tend to stagnate in the conveyor joint space, making it impossible to convey the crops smoothly, and when a large amount of crops are supplied to the conveyor, the conveyor becomes clogged in the conveyor joint space. There was a problem that this could occur.

The purpose of this invention is to forcibly push the crops transported into the transfer space toward the handling barrel, thereby preventing the crops from stagnation or clogging in the transfer transfer space, and allowing the crops to move smoothly. The object is to provide a conveyance device that can carry out the conveyance.

(Means for Solving the Problems) The present invention is provided in the feeder house 11 and at the conveyance end side of the conveyor 12 which transfers the crop harvested by the reaping device 5 of the combine harvester to the handling cylinder 31. It moves in and out of the transfer transfer space D between the cylinder 31 and the transfer transfer space D.
A pushing body 4 that pushes the crops transported to the handling cylinder 31 side.
This device is characterized by being provided with a pushing device 40 having a diameter of 5.

(Function) With the above configuration, when the crops harvested by the reaping device 5 are transferred to the handling cylinder 31 via the conveyor 12, the crops are transferred to the transfer transfer space D between the conveyor 12 and the handling cylinder 31. By moving the pushing body 45 of the pushing device 40 into and out of the transfer space D, the crop can be forcibly pushed into the handling barrel side, thereby preventing the crop from stagnating in the transfer space D. This prevents clogging and allows for smooth transportation of crops.

(Embodiment) Figs. 3 and 4 show a general-purpose combine harvester equipped with a conveying device according to the present invention, which has a screw-type handling drum 31 on a machine body 1 that is driven by a crawler 2. A threshing device 3 having a net-like body 32 such as a clamp net and a swing sorting device 4 are provided below the machine body 31, and a reaping device 5 is supported in front of the machine body 1 via a hydraulic cylinder 6 so as to be able to rise and fall vertically. On the other hand, a grain tank 7 for storing grains threshed by the threshing device 3 is provided on the side of the threshing device 3, and a driver's seat 8 and a driving operation section 9 are provided in front of the tank 7. Furthermore, an engine 1a is mounted behind the tank 7.

The reaping device 5 includes a platform 52 having a header 51 for taking in uncut crops, a reciprocating cutting blade 53 attached to the front of the platform 52, and a crop raking blade disposed behind the cutting blade 53. It consists of a drum 54 and a crop scraping reel 56 supported above the platform 52 via a hydraulic cylinder 55 so as to be able to move up and down. A conveying device 10 having a conveyor 12 for conveying the cut crop (hereinafter referred to as grain culm) to the threshing device 3 is provided.

This conveying device 10 has a pair of drives for driving the conveyor 12 at the rear inside a feeder house 11 whose one end is connected to the rear part of the platform 52 and the other end is connected to the supply port to the handling chamber 30 of the threshing device 3. The drive sprockets 13, 13 and the driven drum 14 having driven sprockets on both sides are respectively disposed in front, and these drive sprockets 13, 13 and the driven drum 14 are arranged opposite to each other with a wide interval between them. A pair of drive chains 12
a, 12a, and a large number of slat bars 12b that are intermittently suspended horizontally at regular intervals between these chains 12a, 12a.
While hanging the drive chains 12a, 12a,
These driving sprocket 13 and driven drum 14
A tension body 15 consisting of a tension roller having a tension shaft 16 for applying tension to the drive chains 12a, 12a of the conveyor 12 is provided above the intermediate portion between the conveyor 12 and the drive chains 12a, 12a.

Note that 11b is an inspection window provided on the upper wall of the feeder house 11, and a transparent glass 11c is attached to the inspection window 11b.
It can be attached and detached or opened and closed freely.

In this way, the harvested grain culms are harvested by the cutting blade 53 of the reaping device 5, raked by the crop raking drum 54, and transported and supplied into the threshing device 3 by the conveyor 56 of the transport device 10. , the threshing device 3
The threshing process is carried out by the handling cylinder 31 inside.

Then, the processed material threshed by the handling cylinder 31 reaches the swinging sorting device 4 from the mesh body 32, and is sorted by the swinging sorting device 4, and the sorted grains are separated from the grains. It is supplied and stored in the tank 7, and straw waste etc. are discharged to the outside.

Therefore, in the conveying device 10 of the combine constructed as described above, the conveyor 12 is placed at the conveyance terminal side position in the conveyance transfer space between the conveyor 12 and the handling cylinder 31, in other words, in the conveyance dead space D. A pushing body 45 that moves backward and pushes the grain culm conveyed to the transfer space D toward the handling cylinder 31 side.
The pushing device 40 having the following features is provided.

Specifically, as shown in FIGS. 1 and 2, the pushing device 40 includes an eccentric piece 41 at the intermediate portion in the length direction of the drive shaft 13a of the drive side sprocket 13.
41, and a swinging arm 42 is rotatably supported at its intermediate portion on the outer periphery of the eccentric pieces 41, while a fixed rod 43 is fixed at one end of the swinging arm 42 to the feeder house 11 side. The eccentric top 4 is rotatably supported on a pivot shaft 44, and a pushing body (hereinafter referred to as push plate) 45 consisting of a push plate is pivotally supported at the other end.
1 rotation, the swinging arm 42 is configured to reciprocate with its other end pivoted about its one end pivot shaft 44 as a fulcrum, and move the push plate 45 into and out of the transfer space D. .

Reference numeral 46 denotes a case that seals both the swinging arms 42, 42, and the free end side of the push plate 45 can be moved in the front-rear direction through a seal 47 through an opening 46a provided at the bottom of the case 46. I support it. In this case, the installation pitch of the slat bar 12b on the conveyor 12 is synchronized with the egress and retraction of the push plate 45, and the slat bar 12b is
2b and the push plate 45 are configured to avoid interference.

Thus, when the grain culm harvested by the reaping device 5 is transferred to the handling drum 31 of the threshing device 3 via the conveyor 12, it is transported to the transfer transfer space D between the conveyor 12 and the handling drum 31. The grain culm
By moving the pushing body 45 in the pushing device 40 into and out of the transfer space D, the grain culms stagnant in the dead space D can be forcibly pushed into the handling barrel side. It can be forcibly pushed toward the barrel 31 side, thereby preventing grain culms from stagnation or clogging in the transfer space D portion, and allowing smooth conveyance from the conveyor 12 to the handling barrel 31. You can make them do it.

Furthermore, since the pushing device 40 is sealed by the case 46, it is possible to prevent grains, straw waste, etc. from entering, thereby preventing the occurrence of problems.

Further, in the embodiment shown in the figure, the conveyor 12
A strip-shaped receiving plate 20 having a width comparable to the width dimension of
is disposed below the non-transfer side of the conveyor 12 and above the tension shaft 16 horizontally suspended in the feeder house 11, and the receiving plate 2
0, the grain stalks carried on the non-transfer side of the conveyor 12 are configured to fall sequentially in front of the tension shaft 16 without being hooked on the tension shaft 16.

Specifically, as shown in FIGS. 3 and 5, for example, the receiving body 20 is formed from a metal plate, and one end of the receiving body 20 is inserted between the side walls of the feeder house 11 and connected to the drive sprocket. It is supported to freely swing via a gate-shaped swinging support 21 pivoted near the tension shaft 13, and the other end is movable in the longitudinal direction of the tension shaft 16 via a holder 22. When the tension shaft 16 moves up and down, the receiving body 20 is attached to the tension shaft 16 about the pivot shaft 21a of the swing support 21.
The spacing between the slat bar 12b on the non-conveying side of the conveyor 12 and the receiving plate 20 is always kept constant, and the deposits on the receiving plate 20 are successively scraped off by the slat bar 12b. I am doing my best.

Further, as shown in FIGS. 5 and 6, the receiving plate 20 can be divided into a plurality of parts by connecting means such as bolts. By dividing the receiving plate 20 and removing it from the swing support 21 and the tension shaft 16, the receiving plate 2
0 can be attached and detached from the gap between the sorting slat bars 12b, 12b and the inspection window 11b of the feeder house 11, thereby eliminating the need for disassembling the slat bars 12b and the drive chain 12a.

Therefore, when the grain culm harvested by the reaping device 5 is transferred to the handling cylinder 31 of the threshing device 3 via the conveyor 12, it is not transferred to the handling cylinder 31 side, but is transferred to the conveyor 12 together with the conveyor 12. Some of the grain culms that have been carried around to the non-transfer side will fall midway through the non-transfer side, but the tension shaft 1
Since a receiving plate 20 is disposed between the grain culm 6 and the swinging support 21 provided on the driving sprocket 13 side, the grain culms that fall while being rotated to the non-transfer side are caught by the receiving plate 20. and the receiving plate 20
The grain culm that is about to be deposited on the slat bar 1
2b, and fall sequentially in front of the tension shaft 16. As a result, the grain culms are caught in the tension shaft 16 in a bridge shape as in the conventional case, and the many grain culms that are caught are
This prevents the conveyance path from being blocked or from a large number of grain culms falling into the conveyance path at once and being transferred to the handling drum side and clogging the conveyance path or the handling chamber 30.

Further, the receiving plate 20 may be provided between the tension shaft 16 and the swing support 21 provided on the drive sprocket 13 side as described above, or, for example, as shown in FIG. By using the reinforcing pipe 30 provided on the drum side and the reinforcing pipe 31 provided on the lower drum side, the tension shaft 1 is
It may be installed in a state where it straddles 6.

In this case, as shown in FIG. 8, the receiving plate 20 includes a band-shaped elastic body 23 made of rubber or the like having a width comparable to the width of the conveyor 12, and a pair of hook-shaped elastic bodies provided at both ends of the elastic body 23. It is formed of locking portions 24, 24, and is configured to be hooked and attached to the upper and lower reinforcing rods 30, 31 in a state where the tension shaft 1 is straddled.

According to such a configuration, not only the tension shaft 16 but also the upper and lower reinforcing rods 30, 31 are provided, so that it is possible to eliminate the catching of the grain culms on the non-transfer side by the conveyor 12 with respect to the reinforcing rods 30, 31. This makes it possible to reliably prevent the problem of blockage or clogging of the conveyance path. Furthermore, since the tension shaft 16 is covered with the band-like elastic body 23 such as rubber, the tension shaft 16 is Since the elastic body 23 expands and contracts, there is no problem with tensioning the drive chain 12a by the tension roller 15, and in addition, the upper and lower reinforcing pipes 30, 3
1 can also be used as a mounting rod for the receiving body 20, so the structure is simple and it can be provided at low cost.

(Effects of the Invention) As described above, the present invention is arranged so that the conveyor 12 and the handling cylinder are installed inside the feeder house 11 and are installed at the conveyance terminal side of the conveyor 12 that transfers the grain culms harvested by the reaping device 5 of the combine to the handling cylinder 31. This is because a pushing device 40 is provided which has a pushing body 45 that moves in and out of the transfer transfer space D between the transfer and transfer space D and pushes the grain culms transferred to the transfer transfer space D toward the handling cylinder 31 side. When the grain culm harvested by the reaping device 5 is transferred to the handling cylinder 31 via the conveyor 12, the grain culm conveyed to the conveyance transfer space D between the conveyor 12 and the handling cylinder 31 is transferred to the Pushing device 4
By moving the pushing body 45 in and out of the transfer space D at 0, it can be forcibly pushed toward the handling barrel, thereby preventing grain culms from stagnation or clogging in the transfer space D. This prevents dripping and allows for smooth transportation of grain culms.

[Brief explanation of drawings]

Fig. 1 is a longitudinal cross-sectional explanatory view of the main parts of the conveying device of the present invention, Fig. 2 is a plan view of the pushing device, Fig. 3 is a partial longitudinal cross-sectional side view of a combine harvester equipped with the conveying device of the present invention, and Fig. 4 is also the top view of the combine harvester, No. 5
The figure is an exploded perspective view of the receiving plate, FIG. 6 is a partially cutaway plan view of the receiving plate attachment part of the conveying device, FIG. 7 is a longitudinal sectional view of the conveying device using another receiving plate, and FIG. The figure is a perspective view of the receiving plate. 5... Reaping device, 11... Feeder house, 1
2... Conveyor, 31... Handling cylinder, 40... Pushing device, 45... Pushing plate (pushing body), D...
...Transportation and handover space.

Claims (1)

[Scope of utility model registration request] Feeder House 11 and this Feeder House 1
A conveyor 12 is installed in the combine harvester 1 and conveys the crops harvested by the harvesting device 5 of the combine to the handling barrel 31.
A conveying device comprising: the conveyor 12;
The conveyor 12 and the handling cylinder 31 are located at the conveyance terminal side position.
moving in and out of the conveyance handover space D between the
A conveying device for a combine harvester, characterized in that a pushing device 40 having a pushing body 45 that pushes the crops transferred to the transfer space toward the handling cylinder 31 side is provided.