JPH053356B2 - - Google Patents

Description

[Detailed Description of the Invention] (a) Field of Industrial Application The present invention provides a method for sorting mixed grains of brown rice and paddy obtained by wind sorting by forming a large number of depressions on the inner peripheral surface. In a rotary sorting huller, which is constructed by combining a rotary sorting section in which a receiving gutter is inserted and horizontally hung in a sorting cylinder that is rotatably hung horizontally, the hulling section and the rotary sorting section are adjacent to each other, and the paddy is removed at this adjacent location. Rotation in a rotary sorting huller in which the entire transmission device from the threshing section to each part of the rotary sorting section and a transmission mechanism that changes the rotation speed of this transmission device are arranged in the space formed below the tank. This invention relates to a power transmission adjustment operating device for a sorting section.

(b) Prior art In a rotary sorting huller constructed by combining a husking section, a wind sorting section, and a rotary sorting section as described above, the husking section and the rotary sorting section are placed adjacent to each other, and the paddy tank is opened at this adjacent location. A system for transmitting power from the scraping section to each part of the rotary sorting section through the space formed on the lower side is known as disclosed in Japanese Utility Model Publication No. 57-58469.

However, in what is disclosed in this publication, the power take-off shaft from the shredding section is a shaft of the shredding roll that extends outward, and a part of the transmission device to the rotary sorting section is connected to the outside of the shredding section. The rotational speed is reduced to a predetermined speed by a reduction gear in a space consisting of a worm and a worm wheel, and then taken out to the rear by an input shaft that passes through the rotary sorting section, and is subjected to upper and lower rotational sorting at the rear of the rotary sorting section. We try to communicate this to each department.

Therefore, the entire transmission path from the scraping section to each part of the rotary sorting section becomes complicated, and a portion of the entire transmission passes through the space of the adjacent location, so a protective cover etc. must be provided for each section. Safety measures are not easy either.

(c) Problems to be Solved by the Invention Therefore, the present invention provides a space formed on the lower side of the paddy tank at a location adjacent to the shredding part and the rotary sorting part, in which all parts from the shredding part to each part of the rotary sorting part are connected. By housing the transmission device and consolidating the transmission path, compressing the longitudinal length of the gas and making it smaller, it also makes it easier to take safety measures for the transmission device, etc., and makes it easier to adopt the transmission device by simple means, making it narrower. It is possible to arrange the entire transmission device within the space, and also incorporates a transmission mechanism that changes the rotation speed of the transmission device to high and low speeds, making the operation of this transmission mechanism convenient, and making it possible to increase the size of the grain shape of the grains to be sorted. This was provided for the purpose of improving the sorting action of the rotary sorting section by making it possible to adjust the rotational speed of the sorting cylinder depending on differences in the number of rotary sorting members.

(d) Means for Solving the Problems In order to achieve the above-mentioned object, the present invention includes a shedding section and a rotary sorting section installed before and after the wind sorting section, and a rotation of the sorting cylinder of the rotary sorting section. The driving shaft axis direction is set in the front-rear direction and is adjacent to the shedding section, and the power take-off shaft is extended rearward from the shedding section side into the space formed on the lower side of the paddy tank at this adjacent location, and the power take-off shaft is All the transmission devices from the shaft to each part of the rotary sorting section are also arranged in the above space, and a transmission mechanism for adjusting the rotation speed of this transmission device is interposed between the power take-off shaft and all the transmission devices, and this transmission mechanism A speed change lever for operating the mechanism is protruded from the space to the gas operation side, and an operation control plate having a guide section for operating the speed change lever is attached between the stripping section and the rotary sorting section. The structure was designed to double as a protective cover for the entire transmission and transmission mechanism.

(e) Effect With this structure, the mixed grains obtained by the wind sorting are transmitted to each part of the rotary sorting part from the power take-off shaft on the scraping part side in the space through the entire transmission device. The rice is sorted into brown rice and paddy by the scooping action of the hollows. In that case, if the shape of the grain changes from large to small due to differences in the variety, the scooping action will change, so in that case, operate the speed change lever from the gas operating side and the transmission will be transmitted by the speed change mechanism. The rotational speed of the rotary sorting section is properly adjusted through the device to improve the sorting action, and the operation panel of the vehicle serves as a protective cover, allowing safe operation.

(f) Examples The present invention will be described below with reference to the drawings of examples.

a is the shedding section, b is the wind sorting section, c is the rotating sorting section,
A shedding section a and a rotary sorting section c are installed before and after the wind sorting section b. The husking section a consists of a paddy tank 1 and a pair of husking rolls 2, etc., and the wind sorting section b mainly winds off the debris from the husking section a at the front, and sends it to the rotary sorting section c at the rear. The shape is longer in the front and back direction than in the width direction, where the sorted brown rice is further screened. In the front part of this wind sorting section b, a diffusion plate 3 and grain grain flow plates 4, 5, and 6 are installed diagonally in sequence, and the lower end of the grain grain flow board 6 looks into a fallen matter wind flow path 7 that slopes upward toward the front. The lower part of this fallen matter wind selection path 7 communicates with an intake port 9 opened in the rear wall via a brown rice wind selection path 8 which will be described later, and the upper part communicates with a suction machine 10. Reference numeral 11 denotes the first article transfer gutter installed horizontally at the bottom of the fallen article wind selection route 7, and 12 denotes the rice cake selection route. In the middle part, there is formed a brown rice flow plate 13 for receiving the brown rice from the rotary sorting part c, and below the brown rice flow plate 13, the brown rice sorting passage 8 is formed, and 14 is a waste rice removal passage.

Next, the rotary sorting section c will be described. Reference numeral 15 designates a sorting cylinder having a large number of depressions 16 formed on its inner peripheral surface and horizontally suspended so as to be rotatable with both front and rear ends being hindered by drive wheels 17 and 18, respectively; The rotating axis of the sorting cylinder 15 is arranged in the front-rear direction, and the supply side X of the mixed grains is rearward and the discharge side Y is the front, and this discharge side Y is adjacent to the scraping part a. be. Reference numerals 19 and 20 indicate a mixed grain transfer gutter and a brown rice receiving gutter which are inserted and horizontally inserted into the sorting cylinder 15 from the supply side X to the discharge side Y.
Screw conveyors 21 and 22 are installed in
The mixed grain transfer gutter 19 has a drop port 23 for transporting the mixed grains from the discharge side Y to the supply side X and drops from the supply side X, and the brown rice receiving gutter 20
is configured to be transferred from the supply side X to the discharge side Y.

A plurality of jump plates 24 are attached at equal intervals to the inner peripheral surface of the sorting cylinder 15 at the discharge side Y end, and 25 is joined to the outside of this jump plate 24 and reaches the discharge side Y. This is a blocking plate for preventing overflow of grains, and 26 is a reducing gutter attached to the inner side from the front wall 27 of the rotary sorting section c, which communicates with the reducing port 28 opened in the paddy tank 1. There is. In addition, 29 is a thrower that lifts up the mixed grains after depupping and wind sorting.
The lower part is the first material transfer gutter 11, and the upper part is the front wall 27 from the left side of the space P formed on the lower side of the paddy tank 1 at a location adjacent to the shredding part a and the rotary sorting part c. The opening at the upper end passes through this front side 27 and looks into the mixed grain transfer gutter 19. The discharge side Y of the brown rice receiving trough 20 communicates with the upper part of the falling passage 30, and the lower part of this falling passage 30 is connected to one side on the brown rice flow plate 13 and the other side on the grain flow plate 6 by means of a switching valve 31. It is connected.

Reference numeral 32 denotes a power take-off shaft extending rearward from the gear box 33 of the shedding section a in the space P in parallel with the rotational axis direction of the sorting housing 15, and the pulley 32a of the power take-off shaft 32 and the screw A belt 34 is passed around a pulley 21a attached to the shaft of the conveyor 21 and pulleys 17a and 17b attached to the shafts of the drive wheels 17 and 18, respectively, and a pair of gears 3 are attached to the shaft of the screw conveyor 22.
A total transmission device d for each part of the rotary sorting section c, including the power take-off shaft 32, is arranged in this space P so that the power is transmitted through the rotary sorting section c.

Next, the power take-off shaft 32 and the entire transmission device d
The following describes a transmission mechanism e that is interposed between the transmission device d and the transmission device d to change the rotational speed of the entire transmission device d, and a transmission lever 39 for operating the transmission mechanism e. 36, 36
Reference character a is a tension pulley for the belt 34, and the pulley 32a attached to the power take-off shaft 32 is configured as a variable diameter pulley whose effective diameter is adjusted according to the degree of tension of the belt by the tension pulley 36. The tension level of this belt 34 is
This is carried out by a shift arm 37, a connecting arm 38, a shift lever 39, etc., which are formed in the shape of a square.The bendable middle part of the shift arm 37 is provided with a rotating bearing part of the power take-off shaft 32. A support hole 40 into which the shift arm 37 can be freely fitted is bored, and the transmission arm 37 can be rotated around the power take-off shaft 32. A tension pulley 36 is attached to one end of the lower side, and a tension pulley 36 is attached to the other end. A locking pin 41 is provided to protrude toward the front. The connecting arm 38 has an elongated engagement hole 42 at its tip that engages with a locking pin 41, and a support metal 43 attached to the gear box 33 near the engagement hole 42.
A shaft hole 45 is drilled to fit a fulcrum shaft 44 that protrudes rearward from the base end of the gear shift lever 39.
are connected to each other, and this speed change lever 39 projects from inside the space P toward the operation side of the machine body.

Reference numeral 46 is an operation control panel for this rice hulling machine, and a guide portion 4 is used to adjust the switch (ON/OFF) of the prime mover and the speed change lever 39 in the vertical direction.
7, and a thrower 2 on the left side of the space P.
As shown in 9, the upper end is placed in the paddy tank 1 and the lower end is placed in the wind selection part b.
It is attached to the side wall of the rotor and positioned between the removing section a and the rotary sorting section c, and covers the space P, that is, the entire transmission device d together with the thrower 29.

Note that the right side of the space P is covered by an vertical cover 48 which is vertically disposed on the paddy tank 1 with its upper end removably attached.

Therefore, the paddy that is sequentially supplied from the paddy tank 1 is scraped off by a pair of dehulling rolls 2, and is wind-selected in the scraped matter wind selection path 7, and the mixed grains of brown rice and paddy are sent to the first grain transfer gutter 11. The mixed grains are directly transferred from the thrower 29 to the gutter 1.
9 and is transferred towards the supply side
3 onto the inner circumferential surface of the sorting cylinder 15. In addition, rice cakes are removed from the rice husks by the suction machine 12, and dust such as rice husks is removed by the suction machine
are respectively discharged from the machine to the sorting cylinder 15.
The mixed grains that have fallen onto the inner peripheral surface of the container gradually flow in the direction shown by the arrow B in Fig. 1 due to the scooping action of the recess 16, which rotates in the direction shown by the arrow A in Figs. 2 and 3. They are sorted out in between.

In other words, brown rice, which has smaller grains than paddy, is difficult to escape from the depression 16 and is scooped up to the highest level and falls into the brown rice receiving trough 20 in a parabolic pattern, and is separated from the brown rice that cannot be scooped up to the highest level. The remaining paddy falls into the mixed grain transfer gutter 19 and joins with new mixed grains, and the sorting action by the depression 16 is repeated again, and the unscooped paddy moves to the discharge side Y and is lifted up by the jumping slope 24. After falling into the return gutter 26, the paddy passes through the return port 28, is returned to the tank 1, and is husked again.

Further, the brown rice that has fallen into the brown rice receiving trough 20 is transferred to the discharge side Y, enters the brown rice wind sorting passage 8 from the drop way 30, is wind sorted, and is taken out to a suitable place outside the machine.

In this case, the power to each part of the rotary sorting section c is taken out from the gear box 33 by the power take-off shaft 32 in the space P, and the taken power is sent to each part by the entire transmission device d in the space P. The mixed grains are then sorted after the air-selecting process as described above.

However, when the shape of the grain changes from large to small due to differences in variety, the rotation speed of the sorting cylinder 15 becomes inappropriate and the sorting action changes, causing paddy to get mixed into the brown rice receiving trough 20. In addition, brown rice may be mixed into the paddy that is jumped up by the jump slope 24 and returned to the paddy tank 1, so the rotation speed of the sorting cylinder 15 is adjusted to a level suitable for the situation.

That is, when the operator is on the operating side of the machine and operates the gear shift lever 39 to the upper end of the guide portion 47 as shown in FIG. When the other side of the transmission arm 37 is pushed down via the locking pin 41, the tension pulley 36 attached to one end moves to loosen the tension of the belt 34, and the pulley 32a attached to the power take-off shaft 32 is moved. As the effective diameter becomes larger, the number of rotations of the drive wheels 17 and 18 increases, and the rotation of the sorting cylinder 15 is adjusted to the high speed side, and when the speed change lever 39 is moved to the lower end of the guide portion 47, the connecting arm 38 and the speed change arm 37 operates in the opposite manner to the above, the tension pulley 36 tensions the belt 34, the power transmitted from the power take-off shaft 32 becomes low speed, and the rotational speed of the sorting cylinder 15 is adjusted to the low speed side. It is.

When the driver operates the shift lever 39, the rain operation panel 46 and the thrower 29 serve as a protective cover for the entire transmission device d and the shift mechanism e, allowing the driver to operate the gear shift lever 39 safely.

Incidentally, if it is necessary to adjust the degree of operation of the guide section 47 to an appropriate level, the other tension pulley 36a can be adjusted by moving in the direction of the arrow shown in FIG. 4, or the guide section 47 can be moved up and down. be.

(G) Effects of the Invention As described above, the present invention includes a shedding section and a rotary sorting section mounted before and after the wind sorting section, and the rotating axis of the sorting cylinder of the rotary sorting section is set in the front-rear direction. Adjacent to the shredding part, a power take-off shaft extends rearward from the shredding part side into the space formed on the lower side of the paddy tank at this adjacent location, and from this power take-off shaft to each part of the rotary sorting part. The entire transmission device is also arranged within the space, and a transmission mechanism for adjusting the rotational speed of the transmission device is interposed between the power take-off shaft and the entire transmission device, and a transmission lever for operating the transmission mechanism is located in the space. A protective cover for all the transmission devices and the speed change mechanism is provided by protruding from the inside toward the operation side of the machine body and installing an operation control board having a guide part for operating the speed change lever between the stripping part and the rotary sorting part. Since the structure is characterized in that it is configured to serve both of In addition, it is easier to take safety measures such as covers for all transmission devices, and by extending the power take-off shaft rearward from the shedding part side, it is parallel to the rotation axis of the sorting cylinder. Therefore, the transmission device can be a simple transmission device such as a belt hook or spur gear, so the entire transmission device can be placed even in a narrow space, and the rotation speed of the transmission device can be adjusted. It is easy to incorporate the speed change mechanism, and since the speed change lever that operates the speed change mechanism is protruded from inside the space toward the operation side of the machine, it is convenient to adjust the rotation speed of the rotary sorting section. Modulations in the scooping action of the vehicle can be immediately responded to, and the driver can operate the gear shift lever safely, with the operation panel serving as a protective cover.

[Brief explanation of the drawing]

The drawings are for illustrating embodiments of the present invention, and FIG. 1 is an overall side view showing the inside of the rotary sorting huller, FIG. 2 is a sectional view taken along line A-A in FIG. 1, and FIG. The figure is a view of the rotary sorting section from the front, Figure 4 shows the transmission mechanism and transmission lever, and Figure 5 shows the transmission mechanism and transmission lever.
The figure is a perspective view showing the main part, and FIG. 6 is an external view of the main part. a... Dehulling section, b... wind sorting section, c... rotary sorting section, 15... sorting cylinder, 1... paddy tank, P...
Space, 32...Power take-off shaft, d...Full transmission device,
e...Transmission mechanism, 39...Speed lever, 47...
Guide part, 46...operation control board.

Claims (1)

[Claims] 1. A shedding section a and a rotary sorting section c are placed before and after the wind sorting section b, and the rotational axis direction of the sorting cylinder 15 of the rotary sorting section c is set in the front-rear direction and adjacent to the shedding section a, At this adjacent location, a power take-off shaft 32 is extended rearward from the shredding part a side into the space P formed on the lower side of the paddy tank 1, and from this power take-off shaft 32 all parts of the rotary sorting part c are The transmission device d is also disposed within the space P, and a transmission mechanism e for adjusting the rotation speed of the transmission device d is interposed between the power take-off shaft 32 and the entire transmission device d, and a transmission mechanism e is provided for operating the transmission mechanism e. A shift lever 39 is projected from inside the space P toward the operation side of the machine body, and an operating operation plate 46 equipped with a guide section 47 for operating the shift lever 39 is attached between the stripping section a and the rotary sorting section c. A power transmission adjustment operating device for a rotary sorting section in a rotary sorting huller, characterized in that it is configured to also serve as a protective cover for the entire transmission device d and the transmission mechanism e.