JPH0358244B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is used by being mounted on a combine harvester, etc., and is used to apply a handling action to grain culms that are held and conveyed in a sideways position by a feed chain. An endless belt,
Grain to be transported is wound horizontally along the culm direction of the grain culm to be handled, and handling teeth are protruded from the outer peripheral surface of the endless handling belt, and the upper part of the endless handling belt is used as a transport path. The present invention relates to a threshing device configured to apply a handling action to the culm with handling teeth that move toward the tip of the grain culm.

[Conventional technology]

Conventionally, general threshing machines have been configured so that a single handling cylinder having handling teeth protruding from the outer circumferential surface applies a handling action to the grain culm being clamped and conveyed.

However, in the above case, the diameter of the handling barrel itself must be large enough to accommodate the tip of the grain culm that is subjected to the handling action, so it is necessarily large in diameter. Therefore, the threshing equipment itself becomes bulky, and the grain tank must be installed on the side of the threshing equipment from the viewpoint of aircraft stability, which limits the tank capacity and makes it difficult to carry out grain discharge operations. The drawback was that it had to be done frequently.

In order to solve this problem, a plurality of relatively small-diameter handling cylinders are arranged side by side in the direction of the culm with the handling teeth of adjacent handling cylinders overlapping each other, and the threshing device itself is It is also possible to use a low-bulk device with a grain tank located above the threshing device to increase the tank capacity (Japanese Patent Application No. 1983-
100049) (Japanese Patent Application Laid-open No. 60-244237), in this case, the angle of the handling teeth acting while rotating is centered on the direction perpendicular to the direction of the culm. In other words, since sufficient handling action cannot be performed unless the handling teeth are in an upright position with respect to the grain culm within a certain range, the space formed between adjacent handling barrels deviates from the handling action range. There is a problem that the grain culm part corresponding to this part cannot receive sufficient handling action.

In addition, since the diameter of the handling barrel is relatively small, threshing products such as grain culms and straw waste are likely to become entangled, which may lead to a decrease in threshing efficiency.

Therefore, conventionally, as disclosed in Japanese Utility Model Application Publication No. 59-127436, a handling endless belt that applies a handling action to the grain culms that are pinched and conveyed in a sideways posture by a feed chain has been used for handling treatment. The grain culm to be transported is wound horizontally along the culm direction, and handling teeth are protruded from the outer circumferential surface of the endless handling belt, and the grain culm is conveyed using the upper part of the endless handling belt as a conveyance path. On the other hand, there is one that is configured to apply a handling action using handling teeth that move toward the tip of the grain culm, and the handling action is only applied using this endless handling band.

[Problem to be solved by the invention]

With the above configuration, the endless band can be set to a low-bulk state due to its arbitrary shape, and it is possible to suppress the collapse of the aircraft balance. In addition, since it is an endless belt, it is possible to apply the handling action evenly over the entire length of the grain culm, and it is possible to suppress entanglement of the grain culm. can.

However, when the amount of threshed material suddenly increases, this handling method using only endless belts does not allow the handling action of the handling teeth to be applied equally to all the processed material, and it is difficult to reduce the increase in the amount of unhandled material. I will invite you.

An object of the present invention is to provide a threshing device that can efficiently thresh while keeping the threshing device itself low in bulk.

[Means to solve the problem]

The characteristic configuration according to the present invention is that the threshed material in the upper part of the handling chamber is handled at an end position on the opposite side from the side where the feed chain is present in the handling chamber that accommodates the endless belt, and in the same direction as the rotation direction of the endless belt. A processing chamber is provided in series for loosening and finely dividing the material by a rotationally driven rotary body and sending the finely divided material to the starting end of the return path of the endless treated band. A filter for sorting is installed on the lower side along the locus of the tips of the handling teeth, and its functions and effects are as follows.

[Effect]

At the upper part of the handling chamber, handling action is applied to the transported grain culm by the handling teeth of the endless belt, and the threshed material subjected to the handling action is sent into the processing room, where it is loosened and finely divided by a rotating body. The processed material that has been handled by the endless band and the rotary body is fed into the return path side of the endless band, and on this return path, the material is subjected to a kneading action by the handling teeth and the filter body to perform a single granulation process.

〔Effect of the invention〕

Therefore, the threshing process is handled in the upper and lower parts of the handling room.
By adding the fir action and also the processing action in the processing chamber, it is possible to apply sufficient threshing action over the long path from the upper part of the processing room to the lower part of the processing room. In addition, by dividing the upper part of the handling chamber where the handling action is applied and the lower part of the handling room where the milling action is applied, it is possible to smooth the leveling of grain threshing and to perform the single grain processing.

In addition, as the threshing load increases, the threshing material that tends to accumulate in the upper part of the handling chamber is loosened and divided into small pieces by this rotating body, which prevents overload on the endless belt and handling teeth. Processing can be done smoothly.

As a result, the threshing process can be carried out efficiently, but a processing chamber equipped with a rotating body is installed in the handling chamber equipped with a rotating endless belt with handling teeth, and the processed material from this processing chamber is processed in the sorting chamber. Discloses a configuration for returning processed waste to the return path of the endless belt (Utility Model Publication No. 52-19891)
However, the present invention provides a point in which the processed material after processing in the processing chamber is introduced into the starting end of the return path of the endless handling belt, and a filter for sorting in the return path of the endless handling belt. It is greatly different in that it is provided with a filtration body, and as a result of the above, almost the entire length of the return path of the endless belt can be fully utilized for the treatment section, and as a result of the above, a fir effect with the filter body can be added. This has the advantage of being able to provide efficient processing in a more compact installation space.

〔Example〕

As shown in FIGS. 1 and 2, a conveyance passage 3 for grain culms to be conveyed while being clamped in a sideways posture by the threshing feed chain 1 is formed in the upper part of the handling chamber 2, and
A wide flat belt, which is one of the endless handling belts 5 with handling teeth 4 protruding from the outer peripheral surface, is horizontally wound on the lower side of the conveyance path 3, and the handling teeth on the lower side of the endless handling belt 5 are wound horizontally. A receiving net, which is one of the sorting filters 6, is installed along the tip trajectory, and the threshed material such as straw waste in the upper part of the handling chamber is handled on the tip side of the handling chamber 2 in the same direction as the rotation direction of the endless body. A processing chamber 8 is connected to the processing chamber 8 for loosening and finely dividing the raw material by a rotary body 7 which is rotationally driven and sending it to the starting end of the endless band 5 at the lower part of the tip side of the handling chamber 2, and is used mounted on a combine harvester etc. A threshing device is constructed.

In FIGS. 1 and 3, the interior of the handling room is described in detail. A drive pulley 9 is placed on the grain culm tip side, a tension pulley 10 is placed on the threshing feed chain 1 side, and both pulleys 9 and 10 have their upper surfaces facing toward the grain. A belt 5 that is driven toward the culm tip side is wound around the belt 5, and a plurality of handling teeth 4 are provided at appropriate intervals on the outer peripheral surface of the belt 5.
is installed protrudingly.

To explain in detail how the handling teeth 4 are attached to the belt 5 as shown in FIGS. 1 and 3, a plurality of flat plate frames 11 are abutted from above to the outer circumferential surface of the belt 5 almost completely in the width direction. A plurality of handling teeth 4 are provided at appropriate intervals in the belt circumferential direction, and a plurality of handling teeth 4 are integrally fixed to this flat plate frame 11 at appropriate intervals in the belt width direction, and the inner peripheral surface side of the belt 5 corresponding to this flat plate frame 11 is provided. A recess 5A and an upwardly extending through hole 5a are formed at the center of the recess 5A.
Flange part 12 that can be inserted into the inside and stored in the recessed part 5A
The main body of the belt 5 is held between a holding body 12 having a shape A and a flat frame 11, and the handling teeth 4 are fixed to the belt 5. Therefore, the handling teeth 4 can be attached to the belt 5 by fixing a plurality of handling teeth 4 to the flat plate frame 11 and by supporting the flat plate frame 11 by holding the belt 5 between the clamping members 12. It is strong enough to be planted. Furthermore, the handling teeth 4 are attached to the frame 11 in such a manner that the row of handling teeth draws a spiral that is inclined with respect to the direction of belt movement, so that the threshed material is transported toward the end of the feed chain 1. It is configured. Furthermore, as shown in FIG. 7, a curved surface with a radius of curvature R is formed on the surface of the collar portion 12A of the clamping body 12 that comes into contact with the recess 5A of the belt 5. It is designed to have a shape that follows the circumferential surface, and the eighth
As shown in the figure, the flat plate-shaped flange 12B can avoid digging into the inner peripheral surface of the belt and causing damage to the belt.

Since the mounting position of the bolt 13 to the belt 5 of the flat plate frame 11 is provided from the front end of the front-rear width of the flat plate frame 11, the length from the bolt 13 to the rear end can be relatively large, and the bending moment due to the load received from the front can be secured. On the other hand, the handling teeth 4 can be stably supported, and load concentration on the mounting portion can be avoided.

As shown in Fig. 1, the shape of the handling teeth is such that the front end face is inclined backward when viewed from the side, and the height of the teeth is higher as the teeth 4a, 4b, and 4c on the lower side of the threshing feed chain 1 in the conveying direction. It is designed to gradually strengthen the shape and handling effect.

As shown in FIG. 3, a guide plate 14 is provided on the upper wall 2B of the handling chamber 2, with the tension side of the belt 5 as the handling action space, and is located between the handling teeth 4, so that even when the belt 5 is tensioned, there is slight variation. The gap between the handling tooth 4 and the upper wall 2B is made large to avoid interference, and the handling tooth 4 and the guide plate 1 are
4 to apply a handling action to the grain culm. The drive pulley 9 and the tension pulley 10
A guide rail 16 is provided between the receiving net 6 and a plate-shaped belt support 17 that supports the slack of the belt 5 and suppresses the slack of the belt 5 at the center position in the width direction of the belt 5 on the receiving net 6. te, receiving net 6
The structure is configured so that the gap between the threshing feed chain 1 and the grain is kept constant so that the kneading action can be performed stably in this part, and the threshing feed chain 1 is configured so that the single grains that have been threshed are transferred to the lower side in the conveying direction to the upper side. This belt support 17 prevents the grain from returning and is configured to prevent excessive handling action from being applied to the grains.

As shown in FIG. 9, a cylindrical bracket 18 is provided extending from the side walls 2A, 2A of the handling chamber 2 toward the pulleys 9, 10 over the entire length of the belt 5 in the rotating direction, and from this bracket 18. A brush-like body 1 that contacts the outer circumferential surface of the belt toward the outer circumferential surface of the belt.
9 is provided, and a dust-proof sealing material 20 is further provided on the tip side, and the belt 5 and pulleys 9, 1 are
This prevents straw waste, grains, etc. from entering between the belt and the belt. Inconveniences such as increased tension can be avoided.

As shown in FIG. 1, a processing chamber 8 partitioned by a partition plate 21 is provided on the tip side of the processing chamber 2, and one of the rotary bodies 23 rotating in the same direction as the belt 5 is installed inside this processing chamber. A rotating barrel is provided, and processing teeth 25 are provided on the outer circumferential surface of the rotating barrel 23 to protrude and overlap with receiving teeth 24 integrally formed with a length corresponding to approximately half the circumference of the rotating barrel 23 which is fixed to the inner wall of the processing chamber. Then, the threshed material such as straw waste from the upper part of the handling chamber 2 is introduced into the processing chamber 8, loosened and finely divided by the processing teeth 25 and the receiving teeth 24, and sent to the lower part of the ear side of the handling chamber 2. It is constructed to avoid overload on the handling teeth 4 and the flat plate frame 11 due to clogging of the threshing material in the chamber 2.

In addition, numeral 39 in FIG. 1 is a plate provided on the grain culm conveyance path 3 side between the handling chamber 2 and the processing chamber 8 to guide the threshed material in the upper part of the handling chamber. When installing this plate body, it may be installed in a state where it is inclined toward the grain culm transport direction toward the processing chamber side.

[Another example]

○B As shown in FIGS. 14 and 15, a chain 26 may be used as the endless belt 5 instead of a belt. A chain 26 is wound around the drive sprocket (not shown) and the tension sprocket 36, and a plurality of handling teeth 2 are attached to the chain 26 at appropriate intervals.
8, and maintains the handling teeth 28 in an operating position protruding from the chain 26.
9 and in a state where the protrusion of the handling teeth 28 is allowed,
A series of wide flat belts 30 are provided along the outer periphery of the chain 26 to prevent straw waste, grains, etc. from entering the inner periphery of the chain 26.

○B The endless belt 5 can be changed to a V belt or various belts such as a timing belt.

○C As shown in FIG. 4, a cylindrical guide body 3 is used instead of the belt support body 17 that supports the belt 5.
1 may be arranged in parallel, or as shown in FIG. 5, a rod-shaped member 32 may be arranged upright in a belt supporting position.

○D As shown by the imaginary line in Fig. 4, the drive pulley 9
In place of the guide pulley 16 provided between the tension pulley 10 and the tension pulley 10, a sled-shaped plate body 15,
15 may be provided along the inner peripheral surface of the belt 5.

○E As shown in FIG. 18, the rotary cylinder 23 is provided with a cutting blade 33 having a cutting edge 33a at its tip, and a receiving blade 34 that can overlap with the cutting blade 33 is provided in the processing chamber. It may also be provided protruding from the wall to further strengthen the fragmentation effect on the threshed material.

(f) The clamping body 12 may have a length corresponding to the width of the belt corresponding to the flat plate frame 11, or may be divided into a plurality of pieces.

○G As shown in FIGS. 11 and 12, a flexible band 35 is provided protruding from the lateral end of the belt 5 toward the side wall 2A of the handling chamber 2, and the tip of the band 35 is brush-like bodies 19, 19 are provided which contact each other from above and below to form a sealing structure;
As shown in FIG. 12, even when the belt 5 is waving, the flexibility of the band 35 itself allows it to be always positioned between the brush-like bodies 19, 19 in a constant position.

○chi As shown in FIG.
8 may be provided so that its tip is in contact with the upper surface of the belt 5 to form a sealing structure for the belt 5 and the pulleys 9, 10, 16.

○Li As the selection filter body 6, a punching metal may be used.

○nu As shown in Figure 13, the height is 4d,
4e has a large rearward overhang and is configured to draw the same trajectory as the tip of the high handling tooth (curvature radius R ₁ ) when rotating in the pulley part,
It is also possible to improve the ability of this rotating part to transport objects to be processed, and to prevent clogging in this part.

As shown in Figures 16 and 17, a plurality of drive sprockets (not shown) and tension sprockets 36 are arranged in parallel along the grain culm conveyance direction.
While winding the chain 26 over the
Narrow frames 40 are provided at appropriate intervals in the circumferential direction of the chain 26 over the multiple rows of chains 26, and handling teeth 28 are provided on the narrow frames 40 at appropriate intervals in the grain culm conveying direction. 2
A main frame 41A and a lid body 41 are integrally formed with holding parts 41a and 41a that hold the upper and lower chains 26.
A series of wide flat belts 30 are provided along the outer periphery of the chain 26 while allowing the protrusion of the handling teeth 28. A structure may be provided to prevent particles from entering.

[Brief explanation of drawings]

The drawings show an embodiment of the threshing device according to the present invention,
Figure 1 is an overall longitudinal rear view, Figure 2 is an overall plan view,
3 is an overall longitudinal sectional side view, FIG. 4 is a rear view showing another embodiment of the belt support, FIG. 5 is a schematic rear view showing another embodiment of the belt support, and FIGS. 6 and 7 are FIG. 8 is a longitudinal sectional view showing a comparative example of FIG. 7;
FIG. 9 is a longitudinal sectional view showing a sealing structure for a belt pulley, FIGS. 10 and 11 are longitudinal sectional views showing other embodiments of the sealing structure, respectively, and FIG. FIG. 13 is a longitudinal sectional view showing another embodiment of the handling tooth, FIG. 14 is a partially enlarged longitudinal sectional view showing another embodiment of the endless body, FIG. 15 is a longitudinal sectional side view of FIG. 14, and FIG. FIG. 17 is an enlarged longitudinal sectional back view and longitudinal sectional side view of main parts showing another embodiment of the endless body, and FIG. 18 is a longitudinal sectional rear view of a processing chamber including a receiving blade and a cutting blade for processing. 1...Feed chain, 2...Handling room, 4,2
8... Handling tooth, 5... Handling endless band, 6... Sorting filter, 7... Rotating body, 8... Processing chamber, 23... Rotating cylinder, 24... Receiving tooth, 25... Processing tooth , 26...
Chain, 30... Flat belt, 33... Cutting blade, 3
4...Ukeblade.

Claims (1)

[Scope of Claims] 1. An endless handling belt 5 that applies a handling action to the grain culms that are pinched and conveyed in a sideways posture by the feed chain 1,
Grain culms to be handled are wound horizontally along the culm direction, and handling teeth 4 are provided protrudingly on the outer peripheral surface of this endless handling belt 5, and the upper part of the endless handling belt 5 is used as a conveyance path. This threshing device is configured to apply a handling action to the conveyed grain culm with handling teeth 4 that move toward the grain culm tip side, and includes a handling chamber 2 that accommodates the endless handling belt 5. At the end position opposite to the side where the feed chain 1 is present, the threshed material in the upper part of the handling chamber is loosened and finely divided by a rotating body 7 which is driven to rotate in the same direction as the endless belt rotation direction. Processing chambers 8 for sending the fragmented material to the starting end of the return path of the endless handling band 5 are successively provided, and the material is sorted along the tip trajectory of the handling teeth below the return path of the endless handling band 5. A threshing device with a filter body 6 installed therein. 2. Threshing according to claim 1, wherein the rotating body 7 of the processing chamber 8 has processing teeth 25 protruding from the rotary drum 23 that overlap with receiving teeth 24 protruding and fixed to the processing chamber wall. Device. 3 The rotating body 7 of the processing chamber 8 connects the cutting blade 33, which overlaps with the receiving blade 34 protrudingly fixed to the wall of the processing chamber, to the rotating body 2.
3. The threshing device according to claim 1, which protrudes from the threshing device. 4. The threshing device according to any one of claims 1 to 3, wherein the endless handling belt 5 is a wide flat belt. 5 The endless handling belt 5 is provided by winding a series of wide flat belts 30 along the outer periphery of a plurality of chains 26 arranged in parallel in the grain culm conveying direction, and connecting the groups of handling teeth 28 attached to the chains 26 to the flat belt 3. A threshing device according to any one of claims 1 to 3, which is constructed so as to protrude from the top.