TWI693968B - Hulling apparatus - Google Patents

Abstract

The rice hulling device of the present invention includes an impeller portion (6) that is provided along the outer periphery of the rice supply portion and rotates the rice discharged from the rice supply portion (7) radially outward by rotation; and hulling The portion (9) receives rice and husks by collision, the rice supply portion (7) has a cylindrical space, the cylindrical space has a width corresponding to the width of the impeller portion (6) in the direction of the rotation axis, the impeller The portion (6) includes: a plurality of blade bodies (14) extending radially; and a dispersing guide portion (15) that disperses the rice discharged from the rice supply portion (7) along the direction of the rotation axis and guides it dispersedly The portion (15) is provided with a plurality of rice passage portions (36) juxtaposed in the direction of the rotation axis. The rice passage portion has a lateral width that allows a grain of rice to pass radially outward along the direction of the rotation axis Set the status of the entire area circumferentially.

Description

Rice hulling device

The invention relates to an impeller type rice hulling device.

The impeller portion of the impeller-type rice hulling device is covered with a casing. A casing ring (hulling portion) made of a soft material such as urethane is provided on a portion of the casing corresponding to the outer peripheral portion of the impeller portion. The rice is supplied by the rice supply part provided on the radially inner side of the impeller part, and the impeller part rotates to guide the rice outward in the radial direction by centrifugal force and collide with the shelling part by the impact Shelling treatment. In addition, there has been an impeller-type rice hulling device: a cylindrical rice guide provided in a rice supply part is formed with a plurality of through holes through which rice can be passed one by one, so that the rice is oriented in the direction of the rotation axis The uniformly distributed state is supplied to the impeller portion, and the shelling process is performed (for example, refer to Patent Document 1).

The above-described conventional structure is a structure in which rice is evenly distributed in the direction of the rotation axis of the impeller portion and does not deflect against the shelling portion, so that a good shelling treatment can be performed. However, in the above-mentioned existing structure, there is a possibility that when the rice is transported into the rice supply part in a state of overlapping with each other, the rice The problem is that the rice cannot be smoothly passed through the hole, and the rice remains in a large amount, so that the rice can not be effectively hulled.

Prior technical literature Patent Literature

Patent Literature 1: Japanese Invention Patent Application Publication Gazette "JP 2001-205113"

Therefore, there is a demand for an apparatus that can make rice collide with the shelling portion in a state of being distributed as uniformly as possible in the direction of the rotation axis of the impeller portion, and operate efficiently.

The characteristic configuration of the rice hulling device of the present invention is that it includes a rice supply unit that discharges the rice imported from the outside in the radial direction, and an impeller unit that is provided along the outer periphery of the rice supply unit to receive the The rice discharged from the rice supply part rotates around a rotation axis located at the center of the rice supply part to guide the rice discharged from the rice supply part radially outward; and the shelling part receives the impeller part The guided rice is hulled by collision, and the rice supply part has the rotation axis center side of the impeller part A width corresponding to the width, a guide surface is provided on the outer peripheral portion of the rice supply portion, and the rice carried from one side of the rotation axis direction is guided to the other side, and the guide surface extends from the one side to the On the other side, the impeller portion includes: a plurality of blade bodies extending radially from the radially inner side toward the radially outer side; and a dispersion guide portion that causes the rice discharged from the rice supply portion to extend along the The direction of the rotation axis is dispersed and guided to the space between the blade bodies adjacent to each other. The dispersion guide portion includes a plurality of rice passage portions juxtaposed in the direction of the rotation axis. The rice passage portions are along the rotation axis The center direction has a lateral width that allows one or more grains of rice to pass radially outward, and is arranged in a state spreading over the entire area in the circumferential direction.

According to the present invention, the rice is transported from one side of the rotation axis direction relative to the rice supply portion, and the transported rice is directed toward the rotation axis by the guide surface extending from one side to the other side of the rotation axis direction Guide on the other side of the direction. In addition, the imported rice is discharged radially outward. In other words, in the rice supply section, even when the rice is transported in one fell swoop from one side of the rotation axis direction, the rice extends from one side to the other side in a uniformly distributed state, so that the distribution unevenness is small Discharge toward the impeller.

The impeller portion is provided with a dispersion guide portion to disperse the rice discharged from the rice supply portion along the direction of the rotation axis. The dispersion guide portion includes a plurality of rice passage portions juxtaposed in the direction of the rotation axis. Because the paddy passage is along the rotation axis, it can only supply one or more grains of rice radially outward The horizontal width of the square passes, so that the rice that cannot pass through one of the rice passages and overflows sequentially moves toward the rice passages adjacent to each other in the direction of the rotation axis, thereby reliably making it along the direction of the rotation axis dispersion.

In addition, since the rice passage portion is provided over the entire circumferential area, even if the rice is supplied by the rice supply portion in an overlapping state, the rice supplied from the rice supply portion can be accompanied by the rotation of the impeller portion without stagnation. It was successfully guided through the paddy passage department. As a result, it is possible to smoothly guide the rice supplied from the rice supply unit in a state of being dispersed along the rotation axis direction without stagnation.

Therefore, it is possible to make the rice collide with the shelling portion in a state of being distributed as uniformly as possible in the direction of the rotation axis center of the impeller portion, and work can be performed efficiently.

In the present invention, it is preferable that the dispersion guide portion includes a rectification guide path, and the rectification guide path refers to a path that guides the rice toward the radially outward side in a rectified state in a state where the rice is divided into each rice passage portion.

According to this structure, for the rice divided into each rice passing portion, the rice guided by each rice guiding portion is not mixed with each other, and is guided toward the radially outward side in a rectified state by the rectifying guiding path, so it can be dispersed in The state in the direction of the rotation axis is directly transferred to the blade body radially outward.

In the present invention, it is preferable that the dispersion guide portion is provided in a state where its radially outer end is close to the radially inner end of the blade body.

According to this structure, since the dispersion guide is close to the blade body Therefore, it is possible to directly transfer the rice guided by the dispersion guide portion in a state of being dispersed along the direction of the rotation axis to the blade body, and it is possible to prevent the rice from overlapping each other during the transfer.

In the present invention, it is preferable that a gap for introducing rice is formed between the radially outer end of the rice supply part and the radially inner end of the dispersion guide part.

According to this configuration, the rice supply unit discharges the rice imported from the outside in the radial direction, and the dispersing guide unit guides the rice discharged from the rice supply unit to disperse the rice. At this time, the rice supply part is in a fixed position, and the dispersion guide part receives the rice while rotating. By forming the gap for rice introduction, the rice can be smoothly transferred from the rice supply portion in a fixed position to the rotating dispersion guide portion without stagnation.

In the present invention, it is preferable that the dispersion guide includes: a plurality of partition forming bodies, which are provided at intervals with a set interval and orthogonal to the rotation axis to form the rice passage portion; and a plurality of sliding guides, Radially located between the partition forming bodies, the partition forming body and the sliding guide are integrally connected, between the radially outer end of the paddy supply portion and the radially inner end of the sliding guide The gap for introducing rice is formed, and the radially outer end of the rice supply part is close to the radially inner end of the partition forming body.

According to this configuration, a plurality of paddy passages juxtaposed in the direction of the rotation axis are formed in the area divided by the plurality of partition forming bodies in a posture orthogonal to the rotation axis. Moreover, since the radially outer end of the rice feed portion is close to the radially inner end of the aforementioned partition forming body, once the After the two rice passages are dispersed in the rotation axis direction, they are not moved from the rice supply part and the partition forming body to other rice passages, but are held directly by the rice passages.

Since the gap for paddy introduction is formed between the paddy supply part and the sliding guide, the paddy scattered in the rotation axis direction and guided to each paddy passage can pass through the paddy introduction gap inside the paddy passage And move freely in the circumferential direction. As a result, the rice is dispersed in the circumferential direction, and is sequentially guided radially outward by the plurality of sliding guide bodies.

Thereby, by sequentially guiding the plurality of sliding guides while maintaining the state of being dispersed in the rotation axis direction, the rice can be guided toward the blade body without staying in the rice passage portion, and the rice hulling operation can be efficiently performed.

In the present invention, it is preferable that the rice supply part includes a cylindrical rice guide, and a rice inlet is formed at one end of the rice guide in the direction of the rotation axis, and a circumferential direction of the rice guide is formed A rice discharge part with an open area.

According to this structure, in the rice supply part, rice is carried in from the rice inlet formed in one end side of the rotation axis center direction of the cylindrical rice guide body which has a cylindrical space. At this time, the rice thrown in from the outside is carried in the state of being scattered in the direction of the rotation axis in the cylindrical space. In addition, the imported rice is discharged radially outward from the rice discharge portion formed by a partial opening in the circumferential direction of the rice guide.

Therefore, even if a large amount of rice is thrown in one fell swoop from the outside, the rice discharge portion is evenly distributed in the state of the rotation axis in advance to the leaves The wheel portion is discharged, and the impeller portion can be easily distributed evenly in the direction of the rotation axis.

6‧‧‧Impeller Department

7‧‧‧Paddy Supply Department

9‧‧‧ Shelling Department

11‧‧‧Rice guide

12‧‧‧ Rice entrance

13‧‧‧Paddy discharge department

14‧‧‧Blade body

15‧‧‧Decentralized Guidance Department

30‧‧‧Partition formation

31‧‧‧Sliding guide

36‧‧‧Paddy Passing Department

Q‧‧‧Rectifying guide path

S‧‧‧Gap

Fig. 1 is a side view of a rice hulling device.

Fig. 2 is a front view of a rice hulling device.

Fig. 3 is a side view of a rice hulling portion.

4 is an exploded perspective view of the hopper and the shelling box.

5 is an exploded perspective view of the impeller portion.

Fig. 6 is an exploded perspective view showing the mounted state of the blade body.

7 is an exploded perspective view of the dispersion guide.

8 is a longitudinal sectional side view of a rice hulling portion.

9 is a longitudinal sectional front view of a rice hulling portion.

Fig. 10 is a partial longitudinal cross-sectional side view showing a rice guiding state of the rice guiding element.

Fig. 11 is a side view showing the mounted state of the blade body and the rice guide element.

FIG. 12 is a cross-sectional view taken along line XII-XII of FIG. 11 and shows the mounted state of the blade body and the rice guide element.

Fig. 13 is a side view showing a state of scattered guidance of rice.

Fig. 14 is a longitudinal cross-sectional front view showing a state of scattered guidance of rice.

15 is a side view of a rice hulling portion of another embodiment.

Fig. 16 is a side view of a rice guide element of another embodiment.

Fig. 17 is a front view of a rice guide element of another embodiment.

Fig. 18 is a side view of a rice hulling portion of another embodiment.

Hereinafter, an embodiment of the rice hulling device of the present invention will be described based on the drawings. The rice hulling device is a device that performs rice hulling treatment on rice supplied from the outside, that is, a rice hulling process that separates rice into rice hulls and brown rice.

As shown in FIG. 1 and FIG. 2, the rice hulling device of the present invention includes: a hopper 2 located on the upper portion of the substantially box-shaped main body casing 1 and temporarily storing the rice M thrown in from the outside side; The rice M discharged from the hopper 2 downward is guided to flow down obliquely downward toward one side of the main body casing 1; the rice hulling portion 4 is located outside one side of the main body casing 1 and is discharged from the hopper 2 by The flow-down guide portion 3 guides the flowed-down rice to perform rice hulling (hulling treatment); and an electric motor 5 for driving, etc., which is located inside the main body casing 1.

The rice hulling section 4 includes: an impeller section 6 which rotates at a high speed around a rotation axis X in the horizontal direction by the driving force of the electric motor 5; a rice supply section 7 which is directed radially inward of the impeller section 6 The rice is supplied; and the shelling box 8 covers the impeller portion 6 and the rice supply portion 7. The rice supply unit 7 discharges the rice imported from the outside in the radial direction.

As shown in FIGS. 1, 2, and 4, the shelling box 8 is formed in a substantially cylindrical shape that is circular in a side view and has a predetermined width in the direction of the rotation axis to cover the outer peripheral portion of the impeller portion 6. The shell-like outer peripheral portion of the shell 8 located at the outer peripheral portion of the impeller portion 6 is provided with an impeller portion on its inner surface side 6 A bushing 9 as an outer shelling portion of the outer peripheral portion. The spacer 9 is formed into a strip-shaped plate using a soft material such as urethane. In the dehulling box 8, a conveying guide portion 8a is formed in a continuously connected state, and the processed material (including brown rice, rice hulls and brown rice) Untreated rice, etc.) are transported to the outside. The lateral outer portion 8b of the shelling box 8 is formed as a detachable cover, and is held in a closed state by a plurality of locking holders 8c.

The rice supply unit 7 is provided with a cylindrical rice guide body 11 in a state spanning from one side to the other side of the rice supply unit 7 in a direction along the rotation axis X, the rice guide body 11 It has a width corresponding to the width of the impeller portion 6. The rice guide body 11 is provided with a guide surface to guide the rice transported into the outer peripheral portion of the rice supply part 7 from one side to the other side along the direction of the rotation axis X.

That is, as shown in FIG. 2, FIG. 4 and FIG. 5, the rice supply unit 7 includes a cylindrical rice guide body 11 that is provided in a state of being connected to the downstream side of the guide direction of the downflow guide unit 3. , And on the same axis as the rotation axis X of the impeller portion 6. The width of the paddle guide 11 in the direction of the rotation axis corresponds to the width of the impeller portion 6 in the direction of the rotation axis. The rice guide 11 has a rice inlet 12 formed on one end side in the direction of the rotation axis, and is closed by the side wall portion 10 on the other end side in the direction of the rotation axis. The side wall portion 10 also serves as a bearing portion that rotatably supports the drive shaft 41 described later. A portion of the rice guide 11 in the circumferential direction is opened to form a rice discharge portion 13. The rice discharge portion 13 is elongated in the direction of the axis of rotation and is opened so as to extend approximately 90 degrees in the circumferential direction (see FIG. 8 ).

As shown in FIG. 9, the rice guide body 11 is connected to the downflow guide 3 so that the rice M guided down from the hopper 2 via the downflow guide 3 is guided into the inside of the rice guide body 11 through the rice inlet 12. Thereby, the inner surface of the rice guide body 11 forms a guide surface, and guides the imported rice from one side to the other side in the direction of the rotation axis.

As shown in FIGS. 3, 8 and 9, the impeller portion 6 includes: a plurality of blade bodies 14 extending radially from the radially inner side toward the outer side; and a dispersion guide portion 15 that extends from the rice The rice M discharged from the supply unit 7 is dispersed in the direction of the rotation axis and guided to the space between the blade bodies adjacent to each other.

With respect to the rice M supplied by the rice supply part 7, the plurality of blade bodies 14 are guided radially outward by centrifugal force accompanying rotation while being slidingly guided by the sliding guide surface 16 extending in the radial direction.

As shown in FIGS. 6, 8 and 10, each blade body 14 includes a substantially U-shaped main body portion 14 a formed of a plate-shaped metal material, and by the main body portion 14 a, a surface with a wider width in the center is formed The sliding guide surface 16 is formed. In addition to the main body portion 14 a on which the slide guide surface 16 is formed, a back surface forming portion 14 b forming the back side guide surface 17 is integrally connected to the main body portion 14 a on the opposite side of the slide guide surface 16. Between the main body portion 14a and the back surface forming portion 14b, an opening 14c is formed that widens in the circumferential direction as it goes outward in the radial direction.

As shown in FIGS. 11 and 12, disc-shaped support plates 18 and 19 made of synthetic resin materials are provided on both sides of the blade body 14 in the rotation axis direction, and the left and right sides of each blade body 14 are provided. The 14d The support plates 18 and 19 are connected by bolts.

As shown in FIG. 5, FIG. 6 and FIG. 8, at the radially outer side portion of each of the plurality of blade bodies 14, a rice guide element 21 as an inner shelling portion is provided while rotating integrally with the blade body 14, The rice guide element 21 has a collision surface 20 that intersects the sliding guide surface 16. Specifically, the collision surface 20 is inclined with respect to the sliding guide surface 16 toward the downstream side in the rotation direction as it goes radially outward.

The rice guide element 21 is formed by integral molding using a soft material composed of urethane as a soft synthetic resin. The hardness of the rice guide assembly 21 is set to a value lower than the hardness of the collar 9. When the hardness is too high, the rice is likely to be damaged. On the other hand, when the hardness is too low, there is a disadvantage that the dehulling performance decreases. Therefore, according to experiments or the like, the hardness of the rice guide assembly 21 is set to an appropriate value so that the possibility of damage to the rice is small and the hulling performance is not low. Since the speed and angle when the rice collides with the collision surface 20 are easier to control than the collar 9, it is possible to maintain the shelling performance even if the hardness is set slightly lower.

As shown in FIGS. 6, 11, and 12, the two sides of the paddle guide element 21 in the rotation axis direction are connected to the support plates 18 and 19 by two bolts 22. In order to securely lock the rice guide element 21 made of a soft material, a metal internal thread member 23 is provided. The internal thread member 23 covers the outer periphery of each bolt 22 and spreads over the rotation of the rice guide assembly 21 It extends over the entire range of the axis. With respect to the pair of internally threaded members 23, one end portion in the direction of the rotation axis is integrally connected to each other by the connecting portion 24, and is opposed to the insertion hole 25 formed in the rice guide assembly 21, It is inserted from one end side in the direction of the axis of rotation for attachment.

As shown in FIG. 10, the rice guide assembly 21 is continuously connected to the radially outer side of the blade body 14, and is arranged in a state where the base end portion 21 a enters the opening 14 c of the blade body 14. The rice guide assembly 21 is provided with an extension portion 21b extending from the base end portion 21a toward the radially outer side toward the downstream side in the rotation direction.

A collision surface 20 is formed on the radially inner side of the extension portion 21b, and the collision surface 20 is inclined toward the downstream side in the rotation direction toward the radially outer side with respect to the sliding guide surface 16 of the blade body 14. This collision surface 20 is for the rice guided by the sliding guide surface 16 of the blade body 14 to collide to perform the shelling process.

An attitude changing surface 26 is formed between the sliding guide surface 16 of the blade body 14 and the collision surface 20, and is curved so as to be located on the downstream side in the rotation direction toward the radially outer side. For the rice M guided by the slide guide surface 16 to the radially outer side, the posture changing surface 26 guides the collision surface 20 while changing the posture.

As shown in FIG. 10, by forming the posture changing surface 26, the posture of the rice M guided and slid by the sliding guide surface 16 of the blade body 14 is changed to avoid the hardest part of the rice M, that is, the front end of the germ One end portion of the tapered shape collides with the collision surface 20.

A concave surface 27 is formed in a portion of the rice guide unit 21 adjacent to the radially inner side of the collision surface 20 in a state of being concave with respect to the posture changing surface 26. Between the concave surface 27 and the radially outer end of the posture changing surface 26, a step is formed in the circumferential direction. The guided rice paddles over the step and is guided in a state of being thrown toward the collision surface 20, thereby increasing the impact force against the collision surface 20.

The rice guide assembly 21 is provided with a throwing action surface 28 that throws the processed object that collides with the collision surface 20 toward the outer collar 9. The throwing action surface 28 is formed in a state of being connected to the collision surface 20, and is inclined so as to be larger in the angle of inclination than the collision surface 20 and further to the radially outer side toward the downstream side in the rotation direction.

As shown in FIG. 10, by having the throwing action surface 28, the processed object after colliding with the collision surface 20 is thrown by the throwing action surface 28 as close as possible to the tangential direction of the outer liner 9 The angle is thrown towards the collar 9. As a result, when the processed object is thrown and collides with the collar 9, the impact force becomes low, and the processed object is less likely to be damaged, such as brown rice, broken rice, or a part of the germ falling into a de-budded state.

As shown in FIGS. 8 and 10, the rice guide assembly 21 overlaps the blade body 14 adjacent to the downstream side in the rotation direction along the rotation direction. Specifically, the rotation direction downstream end position L1 of the extending portion 21b of the rice guide assembly 21 is located closer to the rotation direction downstream side than the rotation direction upstream end position position L2 of the blade body 14 adjacent to the rotation direction downstream side position. That is, the rice guide assembly 21 is provided in a state of overlapping with the blade body 14 adjacent to the downstream side in the rotation direction in the rotation direction, and the interval between the rice guide element 21 and the blade body 14 is set to be narrow. Furthermore, an outer guide surface 29 is formed at the radially outer end of the rice guide assembly 21, and this outer guide surface 29 is set to be substantially parallel to the inner circumferential surface of the collar 9.

Next, the dispersion guide 15 will be described.

The dispersion guide portion 15 includes a plurality of rice passage portions 36 juxtaposed in the direction of the rotation axis. The rice passage portions 36 have a lateral width that allows one grain of rice M to pass radially outward along the direction of the rotation axis, and extend across the circumferential direction. State settings for the entire area.

In addition, as shown in FIG. 7, the dispersion guide 15 is provided with a plurality of partition forming members 30 arranged in parallel with the posture perpendicular to the rotation axis at a set interval along the direction of the rotation axis; The slide guide members 31 are arranged in a radial direction at intervals in the circumferential direction; and the connecting members 32 and 33 are respectively connected to the plurality of slide guide members 31 on both sides in the direction of the rotation axis, and these members are integrally assembled. The partition forming member 30, the slide guide member 31, and the connecting members 32, 33 are formed of a metal material.

The partition forming member 30 is constituted by an annular plate body, and slits 34 are formed along the radial direction at intervals in the circumferential direction. The slide guide member 31 is composed of a rectangular plate body extending in the radial direction and the rotation axis direction, and is inserted into and attached to the slit 34 with respect to the plurality of section forming members 30 to assemble the section forming member 30 and the slide guide member 31 into a grid Lattice.

At both ends of the slide guide member 31 in the direction of the rotation axis, mounting portions 35 bent into a substantially L-shape are formed. The coupling members 32, 33 on both sides are bolted to the mounting portions 35 of the plurality of slide guide members 31, and the plurality of section forming members 30, the plurality of slide guide members 31, and the pair of coupling members 32, 33 are each connected and fixed as One.

In a region surrounded by two partition forming members 30 adjacent to each other, a rice passage 36 is formed. The 36 series of rice passage The direction of the axis of rotation has a lateral width that allows one grain of rice to pass radially outward, and a plurality of rice are divided in a state of being aligned in the direction of the axis of rotation. Specifically, the width of one rice passage 36 is set to be narrower than the width of the rice M in the long direction and wider than the width of the rice M in the short direction. The rice passage 36 is provided in a state of spreading over the entire area in the circumferential direction. As a result, the rice passage portion 36 is divided into a plurality of regions by the plurality of slide guide members 31 in the circumferential direction.

The decentralized guide portion 15 includes a rectification guide path Q, which is a path that divides the rice M passing through each rice passage portion 36 into the rice passage portions 36 in a rectified state toward the radial direction Foreign side guidance.

Supplementary explanation, the partition forming member 30 and the sliding guide member 31 extend from the position of the rice supply portion 7 close to the outer peripheral portion of the rice guide body 11 to the radially inner end of the plurality of blade bodies 14 toward the radial direction width. The area surrounded by the partition forming member 30 and the slide guide member 31 is formed from the position of the rice supply portion 7 close to the outer peripheral portion of the rice guide body 11 to the radially inner end of the plurality of blade bodies 14 and is formed to be long In the shape of a strip, a rectification guide path Q is formed by this radially long path, and has a function of guiding the rice in a rectified state toward the radially outward side in a state where it is divided for each rice passage portion 36.

As shown in FIG. 13, the partition forming member 30 and the sliding guide member 31 of the dispersion guide 15 are respectively provided in a state where the radially outer end is close to the radially inner end of the plurality of blade bodies 14. Moreover, the sliding guide member 31 at the radially outer end of the rice feeder 7 and the dispersion guide 15 A gap S for introducing rice is formed between the radially inner ends. The radially outer end of the rice feeder 7 is close to the radially inner end of the partition forming member 30.

As shown in FIGS. 5 and 7, of the pair of connecting members 32 and 33 that connect and fix the plurality of sliding guide members 31, the outer connecting members 32 located on the opposite side (outer side) from the main body casing 1 are dispersedly arranged in A plurality of bolts 37 in the circumferential direction are connected to the outer support plate 18 on the opposite side (outer side) to the main body case 1 among the pair of support plates 18 and 19. A plurality of bolts 37 are welded and fixed to the outer connecting member 32, are inserted into the screw insertion holes 38 formed on the outer support plate 18, and are inserted into the outer mounting plate 39 provided on the outer side of the outer support plate 18, and from the outside The side is locked and fixed by a nut 40. As a result, the dispersion guide 15 is integrally fixed to the outer support plate 18.

As shown in FIGS. 2 and 9, a drive shaft 41 is provided, which extends from the inside of the main body case 1 from the center of the downflow guide 3 and the rice supply part 7 to the outer support plate of the rice hulling part 4 18. Although not described in detail, if necessary, several parts of the drive shaft 41 are rotatably supported by bearings, and interlocked with the electric motor 5 provided inside the main body casing 1.

As shown in FIGS. 5 and 9, a shaft connecting member 42 is connected to the end of the drive shaft 41 opposite to the main body casing 1. The shaft coupling member 42 includes: a sleeve portion 44 that is fitted and attached to the insertion hole 43 formed in the outer support plate 18; and a disk-shaped mounting portion 45 that is connected to the rotation axis direction of the sleeve portion 44 Inner side.

The drive shaft 41 is fitted and connected to the sleeve portion in a manner that can transmit torque 44, and prevent falling off by thread. In addition, the mounting portion 45 is connected to the outer support plate 18 by a plurality of bolts 46 distributed in the circumferential direction. A plurality of bolts 46 are welded and fixed to the shaft connecting member 42 side, are inserted into the screw insertion holes 47 formed in the outer support plate 18, and are inserted into the outer mounting plate 39 provided outside the outer support plate 18, and The nut 48 is locked and fixed from the outside. As a result, the drive shaft 41 and the outer support plate 18 are linked together.

It is clear from the above description that the plurality of blade bodies 14, the plurality of rice guide assemblies 21, and the support plates 18, 19 are each bolted and fixed as one body, and the dispersion guide 15 is integrally fixed to the outer support plate 18, Furthermore, the drive shaft 41 and the outer support plate 18 are linked together. Thereby, the impeller portion 6 is provided so that the above-mentioned members are integrally connected, and can rotate freely around the axis (=rotation axis X) of the drive shaft 41.

The rice M discharged from the rice discharge portion 13 of the rice supply portion 7 is supplied between the radially outer end portion of the rice supply portion 7 and the radially inner end portion of the dispersion guide portion 15. When the impeller portion 6 rotates, the rice M supplied between the radially outer end portion of the rice feed portion 7 and the radially inner end portion of the dispersing guide portion 15 is dispersed to the rotating dispersing guide portion 15 much. The state of each rice passage portion 36 is guided radially outward.

The rice M system guided by the downflow guide 3 and flowing into the rice guide 11 is discharged from the rice discharge part 13 to the outside. At this time, the rice M is allowed to enter the rice passage portion 36 one by one in the direction of the rotation axis. In this way, since the width of the rice passage portion 36 along the direction of the rotation axis is set to a width that restricts the entry of each grain, the rice discharge section The rice system discharged at 13 is guided to a plurality of rice passage portions 36 juxtaposed in the direction of the rotation axis while being uniformly dispersed in the direction of the rotation axis. This disperses the rice in the direction of the rotation axis. Further, by rotating the partition forming member 30 and the friction between the partition forming member 30 and the rice M, the posture of the rice can be unified so that the long direction of the rice M follows the radial direction of the rice supply portion 7.

Since the radially outer end of the rice feeder 7 and the radially inner end of the partition forming member 30 are close to each other, it is possible to prevent the rice discharge part 13 from being scattered outward in the rotation axis direction and entering one rice paddle After passing the portion 36, it moves toward the rice passing portion 36 adjacent to each other in the direction of the rotation axis.

Since a gap S for introducing rice is formed between the radially outer end of the rice feeder 7 and the radially inner end of the slide guide member 31, the rice system dispersed in the direction of the rotation axis accompanies the rotation of the impeller 6 , Passing through the gap S between the rice supply portion 7 and the slide guide member 31 and dispersed in the circumferential direction. The rice M system is dispersed in the circumferential direction and guided into the rice passage 36 in sequence in one rice passage 36. The rice M guided into the rice passage portion 36 is received by the sliding guide member 31 provided radially, and is guided radially outward by centrifugal force accompanying rotation.

As shown in FIGS. 13 and 14, since the radially outer end portions of the partition forming member 30 and the slide guide member 31 are close to the radially inner end portion of the blade body 14, the inside of each rice passage portion 36 is followed The rice M guided radially does not interfere with each other, and is directly guided toward the blade body 14 on the radially outer side in a rectified state.

The blade body 14 continues to receive the rice M guided from the dispersing guide portion 15 directly, and is guided to the outside in the radial direction by centrifugal force accompanying rotation while receiving and sliding guide by the sliding guide surface 16. As shown in FIG. 10, the rice system slidingly guided by the sliding guide surface 16 is guided toward the collision surface 20 of the rice guide assembly 21 while changing the direction by the posture changing surface 26 formed at the radially outer end.

When the rice M collides with the collision surface 20, the shelling treatment is performed by the impact, so that the rice M is separated into rice husk and brown rice. However, some rice M may remain without being hulled. The treatment including the rice husk, brown rice, and untreated rice is thrown toward the outer collar 9 by the throwing action surface 28 as the impeller portion 6 rotates, and the outer collar 9 is again subjected to shelling treatment.

The processing object after colliding with the outer collar 9 is sent to the outside by a conveying guide portion 8a to a sorting device (not shown) which is conveyed by the conveying guide portion 8a using the wind force generated by the rotation of the impeller portion 6 rotating at a high speed. In the sorting device, a sorting process is performed to separate rice husks and brown rice. It should be noted that since the rice hulling device of the above structure can increase the hulling ratio, the sorting device can omit the special sorting for separating brown rice and untreated rice, which is required by the conventional rice hulling device. The mechanism can achieve the miniaturization and simplified structure of the sorting device.

The rice hulling process is repeated, and when the components are worn due to rice collision, the worn components need to be replaced. However, in the above-mentioned structure, the gasket 9 and the blade body 14 which are large-sized components are less likely to be worn early and the replacement frequency is high. Is only the rice guide element 21, which can cope with low cost The advantages.

Other embodiments

(1) In the above-described embodiment, the structure in which the dispersion guide 15 is provided with the rectification guide path Q that guides the rice toward the radially outward side in the rectification state is adopted. However, instead of this structure, the dispersion guide 15 may be used. It is arranged to be narrow in the radial direction and only has a structure to disperse the rice in the direction of the rotation axis.

(2) In the above-described embodiment, the gap S for introducing rice is formed between the radially outer end of the rice feeder 7 and the radially inner end of the dispersing guide 15, but it may be Instead of adopting the structure of the gap S for rice introduction, the radial outer end of the rice supply part 7 and the radial inner end of the dispersion guide 15 are closer to the gap S for rice introduction State settings.

(3) In the above-described embodiment, a structure in which the rice passage 36 has a lateral width that allows a grain of rice to pass radially outward in the direction of the rotation axis is adopted, but instead of this structure, the rice may be used The passing portion 36 has a lateral width structure that allows a lot of grains to pass radially outward along the direction of the rotation axis.

(4) In the above-mentioned embodiment, the plurality of blade bodies 14 and the dispersion guide 15 are constituted by separate members, but they may be constituted integrally

(5) In the above embodiment, only the outer guide surface 29 is formed on the radially outer end of the rice guide element 21 as the inner shelling portion, instead As an alternative to this structure, as described below, it is also possible to adopt a structure in which a protrusion protruding outward in the radial direction and widening in the direction of the rotation axis is formed at the radially outer end portion of the inner shell portion.

As shown in FIG. 15, at the radially outer end of the rice guide element 21 as the inner shelling portion, an outer guide surface 29 set substantially parallel to the inner circumferential surface of the outer shelling portion may be formed and formed : A protrusion 51 that protrudes outward in the direction substantially orthogonal to the outer guide surface 29, that is, in the radial direction from the most upstream portion of the outer guide surface 29 in the rotation direction. As shown in FIGS. 16 and 17, the protrusion 51 is formed to span the entire area of the width of the rotation direction of the rice guide assembly 21.

As shown in FIG. 18, the back surface 50 continuous from the base end portion 21a of the rice guide element 21 to the outer guide surface 29 may be formed as a flat surface, and an end portion side from the outer guide surface 29 side of the back surface 50 may be formed The protrusion 51 protruding in a direction substantially perpendicular to the back surface 50 does not protrude from the outer guide surface 29. In this structure, the protrusion 51 is provided in an inclined state that is located further upstream in the radial direction and located on the upstream side in the rotation direction, instead of facing outward in the radial direction.

As shown in FIGS. 15 to 18, the protrusion 51 is not limited to a structure that spans the width of the entire area in the direction of the rotation axis of the rice guide assembly 21, as long as it has a predetermined width in the direction of the rotation axis That is, it may be a structure provided only in the range of the local region of the width of the paddle guide element 21 in the rotation axis direction.

(6) In the above-described embodiment, a structure in which a step is formed between the collision surface 20 and the posture changing surface 26 is adopted, but the structure may be replaced As shown in FIGS. 15 and 18, the collision surface 20 and the posture changing surface 26 are continuously connected.

(7) In the above-mentioned embodiment, the rice supply part 7 is shown as the cylindrical inlet 12 which is opened on one side in the direction of the axis of rotation to form the rice inlet 12, and the local area in the circumferential direction is opened to form the discharge part The structure constituted by the guide body 11 is not limited to this structure. For example, as the rice guide body, a structure in which the discharge part is opened from one side to the other in the direction of the rotation axis over the entire area, or a structure in which the local area is divided into a plurality of openings in the direction of the rotation axis can be used Structure and other ways to implement.

(8) In the above embodiment, the rice guide element 21 as the inner shelling portion is provided on the radially outer side of the blade body 14, and a soft synthetic resin material made of urethane is used. The material constitutes the rice guide element 21, but the rice guide element 21 may be constituted by using other types of soft materials such as rubber, or may adopt a structure that does not include such an inner shelling portion (rice guide element 21).

(Industry availability)

The invention can be applied to an impeller type rice hulling device.

1‧‧‧Main body shell

2‧‧‧hopper

3‧‧‧Leave the guide

4‧‧‧ Rice hulling department

6‧‧‧Impeller Department

7‧‧‧Paddy Supply Department

8‧‧‧shelling box

8a‧‧‧Conveying guide

8b‧‧‧Lateral outer side

9‧‧‧ Shelling Department

10‧‧‧Wall part

11‧‧‧Rice guide

12‧‧‧ Rice entrance

13‧‧‧Paddy discharge department

14‧‧‧Blade body

15‧‧‧Decentralized Guidance Department

16‧‧‧Sliding guide surface

17‧‧‧Back side guide surface

18, 19‧‧‧ support plate

21‧‧‧Rice guide element

30‧‧‧Partition formation

31‧‧‧Sliding guide

32, 33‧‧‧ connection member

36‧‧‧Paddy Passing Department

37‧‧‧bolt

39‧‧‧External mounting plate

40‧‧‧Nut

41‧‧‧ drive shaft

42‧‧‧Shaft connecting member

43‧‧‧Plug through hole

44‧‧‧Shaft sleeve

45‧‧‧Installation Department

46‧‧‧bolt

48‧‧‧Nut

Q‧‧‧Rectifying guide path

M‧‧‧Rice

X‧‧‧rotation axis

Claims (7)

A rice hulling device is characterized by comprising: a rice supply part which discharges the rice imported from the outside in a radial direction; an impeller part which is provided along the outer periphery of the rice supply part to receive the supply from the rice The rice discharged from the part, and rotates around the rotation axis located at the center of the rice supply part to guide the rice discharged from the rice supply part radially outward; and the shelling part receives the guide guided by the impeller part The rice is hulled by collision, the rice supply portion has a width corresponding to the width of the impeller portion in the direction of the rotation axis, and a guide surface is provided on the outer peripheral portion of the rice supply portion, from the direction of the rotation axis The rice carried on one side is guided to the other side, the guide surface extends from the one side to the other side, and the impeller portion includes: a plurality of blade bodies extending from the radially inner side toward the radially outer side Extending radially; and a dispersion guide portion, which disperses the rice discharged from the rice supply portion along the rotation axis direction and guides the space between the blade bodies adjacent to each other, the dispersion guide portion is provided in A plurality of rice passage portions juxtaposed in the direction of the rotation axis, the rice passage portion has a lateral width that allows one or more grains of rice to pass radially outward along the direction of the rotation axis, and extends over the entire circumferential area 'S status settings, The dispersion guide portion includes: a plurality of partition forming bodies, which are arranged at a predetermined interval and orthogonal to the rotation axis in order to form the rice passage portion; and a plurality of sliding guide bodies, which are radial and located Between the partition forming bodies, a gap for introducing rice is formed between a radially outer end of the paddy rice supply portion and a radially inner end of the sliding guide body, and a radially outer end of the paddy rice supply portion The portion is close to the radially inner end of the aforementioned partition forming body. The rice hulling device according to claim 1, wherein the dispersion guide portion includes a rectification guide path, and the rectification guide path means that the rice is rectified toward the radial direction in a state where the rice is divided into each rice passage portion The path guided by the outside. The rice hulling device according to claim 1, wherein the dispersion guide portion is provided in a state where its radially outer end is close to the radially inner end of the blade body. The rice hulling device according to claim 2, wherein the dispersion guide portion is provided in a state where its radially outer end is close to the radially inner end of the blade body. The rice hulling device according to any one of claims 1 to 4, wherein the partition forming body is integrally connected to the sliding guide body. The rice hulling device according to any one of claims 1 to 4, wherein the rice supply unit includes a cylindrical rice guide, and A rice inlet is formed at one end side in the rotation axis direction of the rice guide body, and a rice discharge portion that is opened in a part of the circumferential direction of the rice guide body is formed. The rice hulling device according to claim 5, wherein the rice supply part includes a cylindrical rice guide body, and a rice inlet is formed at one end side of the rice guide body in the direction of the rotation axis, and formed at The rice discharge portion in which a part of the circumferential direction of the rice guide is opened.

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