JPH0632222Y2 - Grain sorter - Google Patents

Description

[Detailed Description of the Invention] "Industrial field of application" The present invention relates to a grain sorting device such as a rice sorting machine vertically provided with a rotary sorting tube for separating and removing scrap rice from brown rice.

"Prior Art" Conventionally, as disclosed in Japanese Patent Laid-Open No. 59-196785, there has been a technique in which a sorting cylinder is attached substantially vertically and a scrap grain take-out conveyor is vertically provided adjacent to the sorting cylinder.

"Problems to be solved by the invention" In the prior art, since the grain supply hopper is attached so as to project to the outside of one side of the sorting cylinder, and the drive motor is attached to the outside of one side of the sorting cylinder in an upward posture, The hopper and the motor are extended outside the hollow cylindrical machine frame that houses the selection cylinder, which causes a problem in the work at the installation location or in the vicinity, and the center of gravity of the machine frame tends to be biased, and the selection cylinder is used by the motor. Since the rotational speed of the selection cylinder is decelerated and the rotational force of the sorting cylinder is accelerated and transmitted to the waste grain extracting conveyor, there is a problem that the driving force transmission loss is large and the driving efficiency cannot be easily improved.

"Means for solving the problem" Therefore, the present invention, while rotating a plurality of sorting cylinders around the vertically installed main spindle, revolves around the same axis, and uses the scrap grain take-out conveyor and the high-quality grain take-out conveyor on the sorting cylinder side. In the grain sorting device in which the grain feeding hopper is placed directly adjacent to the sorting barrel and the grain feeding hopper is arranged almost directly above the sorting barrel, a rotation transmission means for connecting the sorting barrel to the main shaft and rotating on its axis is arranged at the lower end side of the sorting barrel. In addition, the drive motor is installed laterally in the lower side of the rotation transmission means, and the drive input portion on the lower end side of each conveyor is provided at substantially the same height as the drive motor, and the deceleration transmission means is provided on the motor shaft of the drive motor. The drive input shaft of the high-quality grain take-out conveyor is connected through the drive shaft, and the lower end side of the main shaft is connected to the drive input shaft through a vertically extending speed change shaft.

Therefore, the drive motor, which is a heavy load, is set to the lowest position, the rotation transmission suspension is installed on the upper side of the motor, the sorting cylinder is installed above this, and the grain supply hopper is installed above, so that they are hollow. It can be easily housed in a column-shaped machine frame, the center of gravity of the machine frame can be lowered, and a stable vertically long structure can be easily obtained. It can be easily installed in narrow places such as corners, and the drive motor can be used. Since the high-quality grain extraction conveyor is decelerated and the rotational force of the conveyor is transmitted to the sorting cylinder at a variable speed, the sorting cylinder driving force with the slowest rotation speed can be transmitted more efficiently than before, and a drive motor in a lateral orientation can be used. The drive structure for connecting the selection cylinders can be easily configured by interposing the conveyor drive structure, and the rotation of the selection cylinders can be easily controlled while keeping the rotation of the conveyor constant.

[Embodiment] An embodiment of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is an explanatory plan view of a drive unit, FIG. 2 is an overall front view,
FIG. 3 is a side view of the same, and FIG. 4 is a rear view of the same.
Is a rice selection machine, (2a) and (2b) are brown rice input ports opened on the right and rear sides of the machine, (3) is a brown rice receiving hopper that receives the brown rice from the input ports (2a) and (2b), and (4 ) ... is a vertical sorting cylinder for separating and sorting scrap rice such as immature rice and broken rice from brown rice from the hopper (3), and (5) is the scrap rice separated and removed by the sorting cylinder (4) ... Unrefined rice discharge port to take out, (6) grained rice fried conveyor for graining the grained rice sorted by the sorting cylinder (4), (7) is grained rice fried by the conveyor (6) The unpolished rice tank for temporarily storing the unpolished rice, (8) is the unpolished rice discharge port for taking the unpolished rice in the tank (7) out of the machine, and (9) is the opening / closing shutter provided in the discharging port (8). When unpolished rice fed from the mouths (2a) (2b) is fed into the sorting cylinder (4) ..., scrap rice is separated to the outside of the mesh surface of the cylinder (4) by the rotary sieving action of the cylinder (4). It is configured to be removed.

As shown in FIG. 5 to FIG. 8, the selection cylinders (4) ... are provided at four equal intervals around the rotary spindle (10).
The upper receiving member (11) with a closed lid at the upper end of. Bush (12).
Hollow shaft (13). The hexagonal shaft portion (10a) of the main shaft (10) is supported by a distribution plate (14) and an upper coupling body (15) so as to be vertically slidable and integrally rotatable (revolution), and the hexagonal shaft portion is also rotatable.
Upper and lower discs that can rotate integrally with (10a) via the lower joint (16)
(17) (18) is supported, and the lower cylinder (18) has the selection cylinder (4) ...
The lower end of the lower support member (19) and the hexagonal head (2) of the rotary support shaft (20).
It is rotatably (rotatably) supported via 0a) and a support bearing (21).

The main shaft (10) has a lower end rotatably supported by a base frame (23) fixed to a square frame-shaped machine frame (22) via a holder (24) which is a main shaft boss, and a lower portion of the base frame (23). The reduction gears (27) (28) are attached to the vertical transmission shaft (26) provided in the motor chamber (25) of
The main shaft (12) is interlockingly connected via the. Further, the motor chamber (25) has a drive pulley for driving the grain elevator (6).
It faces the pulley shaft (30) of (29).
(0) is supported by a holder (31), and a pair of deceleration V pulleys (33) (34) are attached to the motor shaft (32a) of the drive motor (32). V-belt (3
5) and the tension pulley (36) through the pulley shaft (3
0) interlockingly connected, while the fried conveyor (6) is provided to be driven to rotate at a constant speed, while the pulley shaft (30) through the disc friction wheel type continuously variable transmission mechanism (37) The speed change shaft (26) is interlockingly connected so that the speed change can be adjusted. The speed change mechanism (37) is attached to the hexagonal shaft portion (26a) of the speed change shaft (26) so as to be slidable in the vertical direction, and has a friction plate (38) having a rubber surface (38a) on the outer peripheral edge thereof, and the pulley shaft (30). A disc (40) that is slidably attached to the left and right of the end face (40a) against the rubber surface (38a) via a compression spring (39).
And a shaft coupling body (44) of the friction plate (38) which is attached to the bottom plate (41) of the rice selection machine (1) through the bracket (42) and the support shaft (43).
A sliding operation plate (47) to be connected to the operation plate via a pin (45) and an engagement groove (46), and a base end is fixed to the operation plate (47) via a connection rod (48), and the distal end is fixed to the machine body. The lever control plate (49) facing the outside of the lever guide plate (49) on the front is provided with the operation lever (50).
Therefore, the friction plate (38) is vertically moved along the hexagonal shaft portion (26a) of the speed change shaft (26) so that the rotation of the main shaft (10) can be appropriately changed in speed.

As shown in FIG. 9, the grain-cleaning rice conveyor chamber (51) in which the fried grain conveyor (6) is installed is arranged on the left side of the motor chamber (25) through a single partition plate (52). , This conveyor room (51)
The scrap rice conveyor chamber (54) inside which the scrap rice fried grain screw conveyor (53) is installed is arranged via the partition plate (55), and the sorting cylinder
(4) The scrap rice taken out at the bottom of the screw conveyor (53)
It is provided so that the grain can be fried through the to the discharge port (5) at a substantially central height position on the rear surface of the machine body and discharged outside the machine. Then, the lower end of the conveyor shaft (56) of the screw conveyor (53) is linked to the motor shaft (32a) through a disc friction wheel type continuously variable transmission mechanism (57), and the transmission mechanism (57) is Conveyor axis
(56) Sleeve (58) at the bottom and collar (59) for adjusting the mounting position
And a friction plate (61) having a rubber surface (61a) on its outer peripheral edge, which is mounted so that its vertical height can be adjusted via bolts (60), and left and right sliding on the motor shaft (32a) via a compression spring (62). The rubber surface (61a) is equipped with a disk (63) for elastically pressing the end surface (63a), and is mainly used at the time of shipment of this rice selection machine (1) and when it is 60HZ specification. In the state, and in the case of 50HZ specification, the collar (59) is interposed between the friction plate (61) and the sleeve (58) and moved to the position below the phantom line in the figure, and the speed change mechanism for selection is selected. (37) It is configured to be able to perform low-speed and high-speed two-stage gear shifting with a narrower gear shift width.

Also, as shown in FIG. 10, the sun gear (64) is integrally fixed to the holder (24), and the planetary gears (65) are fixed to the support shafts (20) .. When the support shaft (20) revolves around the main shaft (10) by meshing with the sun gear (64) through the gears (64) (65) in the direction opposite to the revolving direction (a). ) (66) is used to rotate the respective support shafts (20), respectively, so that the revolving direction (a) and the revolving direction (b) of the sorting cylinder (4) are opposite to each other. The idle gear (66) is attached to the lower disc (18) via the gear shaft (66a).

The rotation speed (n) of each of the selection cylinders (4) is formed to be larger than the revolution speed (N) (n> N).
By making (n) larger than the revolution speed (N) and in the opposite direction, the brown rice in a state of sticking to the outer side of the inner circumference of the cylinder (4) by centrifugal force at the time of revolution is generated in the cylinder (4). It is configured so as to be uniformly stirred by the rotation action in the opposite direction to promote the downward flow to improve both the sorting accuracy and the processing capacity.

As is clear from the above, while the plurality of sorting cylinders (4) are revolved around the main spindle (10) to be erected and revolved,
A screw conveyor (53), which is a waste grain extraction conveyor, and a plurality of conveyors (6), which are good quality grain extraction conveyors, are erected adjacent to the side of the sorting cylinder (4), and directly above the sorting cylinder (4). In the grain selection device for arranging the brown rice receiving hopper (3) which is a grain supply hopper, a gear (64) (65) (65) (65) which is a rotation transmission means for rotating the rotation by connecting the selection cylinder (4) to the main shaft (10). )
(66) is arranged on the lower end side of the sorting cylinder (4), and gears (64) (65)
The drive motor (32) is installed in a horizontal position below (66), and the drive input section on the lower end side of each of the conveyors (6) and (53) is provided at substantially the same height as the drive motor (32). A pulley shaft (30) which is a drive input shaft of the grain elevator (6) through a V belt (35) which is a deceleration transmission means to a motor shaft (32a) of (32)
The main shaft (1
0) The lower end side is connected to the pulley shaft (30).

Further, as shown in FIG. 8 and FIGS. 10 to 11, a scrap rice discharging blade (67) and a regular brown rice discharging blade (68) are provided on the outer peripheral edges of the upper and lower discs (17) and (18), respectively. The blades (67) and (68) of the upper stage are placed on the upper stage scrap rice gutter (69) and the lower stage adjusted brown rice gutter (70), respectively, which are integrally fixed in the frame (22), and opened on the scrap rice gutter (69). The scrap rice take-out port (71), the screw conveyor (5) through the scrap rice chute (72) and the opening (52a) of the partition plate (52).
While connecting to the scrap rice intake (74) opened in the conveyor tube (73) of 3), the plain rice outlet (75) opened at the bottom of the plain rice gutter (70), the chute (76) Through the regular brown rice conveyor chamber (51) through the regular brown rice outlet (77),
(71) while discharging the scrap rice taken out through the screw conveyor (53) from the discharge port (5) on the left side of the machine to the outside of the machine, and the plain brown rice taken out to the discharge port (75) It is configured so that the grain can be fried in the prepared brown rice tank (7) via the fried grain conveyor (6) and appropriately taken out of the machine.

Further, as shown in FIGS. 8 and 11 to 12, a bearing plate for supporting the lower end of the conveyor shaft (56) on the conveyor cylinder (72).
A plurality of bran dropping holes (79) are opened in (78), and bran and dust mixed in the scrap rice are dropped through the dropping holes (79) to the bran ejection chute (80) below and the machine rear It is configured to be taken out of the machine through the bran discharge port (81) on the side surface.

Further, a cleaning port (82) is opened near the lower end of the conveyor tube (73) toward the left side of the machine body, and the port (82) is closed by a side lid (84) so that it can be opened via a bolt (83). Inspection cover (8) that closes the common inspection port (85) of each conveyor chamber (51) (54) under the surface
It is configured so that the side cover (84) can be opened when 6) is opened.

Furthermore, the hexagonal shaft portion (10a) of the main shaft (10) has a bolt (8
7) and a pair of contact plates (88a) (88b) via two urethane rubber plate scraper (89) (89) intermediately fixed,
Connect both ends of these scrapers (89) (89) to the sorting cylinder (4).
Slidably contact a sorting surface having a large number of meshes (90), and each scraper (89) (89) is rotated at the same rotation as the revolution of the sorting cylinder (4). (89) It is configured to keep the working surfaces of (89) in contact with each other, and when spinning, to scrape off the crushed particles that clog the mesh (90) in the vicinity of the revolution center position where the revolution centrifugal force is weakest. is doing.

As shown in FIGS. 5 to 7, the distribution plate (14) is formed in a quadrangular shape, and the support shafts (13) ... 4) ... etc. When the driving of the sorting unit (91) is stopped, the angle of repose (α) of brown rice staying between the supply port (3a) of the hopper (3) and the upper flat surface of the distribution plate (14) is Hold it constant and hold the hollow input hole (13
It is provided so as to surely prevent brown rice from flowing into the sorting cylinder (4) from a). Further, a rubber elastic prevention body (92) for preventing brown rice scattering is integrally fixed to the upper flat surface of the distribution plate (14), and a detent ball is attached to the upper combined body (15) of the distribution plate (14). Cylindrical body that encloses (93) via compression spring (94)
(95) is provided, and when the ball (93) is engaged with the lower notch (96a) formed in the hexagonal shaft portion (10a), the lower receiving member (4) of the selection cylinder (4) is shown as shown by the phantom line in FIG. The hexagonal hole (19a) of (19) is fitted and supported by the hexagonal head (20a) of the support shaft (20) to perform the sorting work, while the sorting cylinders (4) ... When the balls (93) are integrally moved to engage the upper notches (96b) formed in the hexagonal shaft portion (10a), the lower receiving member (19) is moved to the hexagonal head (as shown by the solid line in FIG. 5). 20a), and then the sorting cylinders (4) are pushed downward to disengage the upper receiving members (11) from the support shafts (13). ) ... is configured to be removed. In addition, even when the upper part of the preventive body (92) abuts and interferes with the bottom part of the hopper (3) during the upward movement of the distribution plate (14), the preventive body (as shown by the phantom line in FIG. 6). It is configured such that the selection cylinder (4) can be removed without causing any trouble by deforming 92).

Further, as shown in FIG. 13, on the side wall surface (22a) that separates the grain-graded rice tank (7) above the fried conveyor chamber (51),
In addition to opening a smoothed rice tank inlet (97) for charging the smoothed rice fried by the conveyor (6) into the tank (7),
On the side of the bottom of the bottom surface (7a) of the bottom flow surface (7a) where the flow starts, a side wall surface (22a) between the hopper (3) and the leveled rice tank (7) is provided with a leveled rice overflow port (98). A baffle plate (99) is provided on the lower flow surface (7a) between the mouth (97) and the overflow port (98) to fill the inside of the tank (7) with the overflow port (9).
8) When the unpolished brown rice overflows, it is returned to the hopper (3) below it through the overflow passage (100).

Furthermore, as shown in FIG. 10, the scrap rice and the smoothed rice gutter
(69) (70) has an inner bent edge fixed with a seal member (101) for sealing the gap between the bottom surfaces of the upper and lower discs (17) (18),
It is configured to prevent the scrap rice and smoothed rice in each gutter (69) (70) from spilling inward toward the inside.

Further, the lower end of the selection cylinder (4) is formed to extend downward (dimension (t)) from the lower surface of the outer peripheral rim portion (19b) of the lower receiving member (19),
When the sorting cylinder (4) is rotated, it is configured so as to prevent the smoothed rice that is blown off by the arm portion (19c) of the receiving member (19) from scattering inside the scrap rice gutter (69) in the vicinity. There is.

This embodiment is constructed as described above, and the charging port
Brown rice receiving hopper from either (2a) or (2b) (3)
The unpolished rice that has been thrown into is fed into the sorting cylinder (4),
(4) After the scrap rice is separated and removed, it is fried in the grain-adjusted rice tank (7) via the fried conveyor (6) and appropriately taken out of the machine.

Thus, during the revolution and rotation of the sorting cylinder (4), the centrifugal force during revolution promotes the leakage of waste rice from the mesh (90), and the revolution direction (a). The brown rice is stirred by the counter-rotating stirring action in a uniform distribution state in the tube (4) to further promote the separation of the scrap rice, and the brown rice is made to flow well while rotating along the inner peripheral surface of the tube (4). The processing capacity is improved.

Further, even when changing the revolution speed of the sorting cylinder (4) to high or low speed to adjust the sorting accuracy, the speed ratio between the revolution speed and the rotation speed is always constant, so the sorting cylinder (4) There is no inconvenience that brown rice sticks to the outside of the inner peripheral surface or the downward flow is promoted more than a predetermined amount, and the work can always be performed in a state where a good balance between the sorting accuracy and the processing capacity is maintained.

Furthermore, the scrap rice fried grain screw conveyor (53) is directly linked to the motor (32) separately from the drive speed change system of the sorting section (91) through the disc friction wheel type continuously variable speed change mechanism (57). Since they are connected to each other, they can be installed side by side and close to the motor (32) to be compactly incorporated, and since the shift width is small, the generation of broken rice due to the screw conveyor (53) can be prevented.

Furthermore, the rotational driving force from the motor (32) is sequentially transferred to the screw conveyor (53). Lifting conveyor (6). Since the structure is such that it is transmitted to the low speed side with the sorting unit (91), and the conveyors (6) and (53) are juxtaposed side by side on the left side of the sorting unit (91) side by side, the overall drive system is small and compact. And the functionality can be further improved.

On the other hand, the input ports (2a) (2b) are provided on the right side surface and the rear side surface of the machine body, and since either facing surface is a closed structure, the other opening (2a) or (2b) is used when either one is used. Even if it is not closed with a cover or the like, brown rice does not scatter and can be used conveniently.

Further, as shown in FIGS. 2 to 4, by removing the front and rear side covers (102a) (102b) substantially in the middle of the front and rear sides of the machine body, the sorting section (91) and the frying conveyor (6) are provided on the front side. )
Also, on the rear side, it can be opened across both the sorting section (91) and the screw conveyor (53), and both of these can be inspected at the same time.

"Effects of the Invention" As is apparent from the above-described embodiments, the present invention allows the plurality of sorting cylinders (4) ... 53) and a high-quality grain pick-up conveyor (6) are installed vertically adjacent to the side of the sorting cylinder (4), and a grain supply hopper (3) is arranged almost directly above the sorting cylinder (4). In the device, rotation transmission means (64) (65) (66) for connecting the selection cylinder (4) to the main shaft (10) and rotating on its axis are arranged on the lower end side of the selection cylinder (4), and also rotation transmission means ( 64) (65) (6
The drive motor (32) is installed in a horizontal position below 6), and the drive input section on the lower end side of each of the conveyors (6) and (53) is provided at substantially the same height as the drive motor (32). 32) The motor shaft (32a) is connected to the drive input shaft (30) of the good quality grain extracting conveyor (6) via the speed reduction transmission means (35), and the main shaft is provided via the speed-changing shaft (26) that is vertically installed. (10) The lower end side is connected to the drive input shaft (30), and the drive motor (3
2) is the lowest position, and the rotation transmission means is provided above the motor (32).
(64) (65) (66), the sorting cylinder (4) above this, and the grain supply hopper (3) above this, so they can be easily stored in the hollow column-shaped machine frame (22). In addition, the center of gravity of the machine frame (22) can be lowered to easily obtain a stable vertical structure, and the drive motor (32) can be easily installed in a narrow place such as a corner. The high-quality grain extraction conveyor (6) is driven by deceleration by the speed change transmission of the rotation force of the conveyor (6) to the selection cylinder (4), so that the rotation speed of the selection cylinder (4) with the slowest rotation speed is higher than that of the conventional one. A drive structure that can be efficiently transmitted and that connects the sideways drive motor (32) and the selection cylinder (4) can be easily configured by interposing the conveyor (6) drive structure, and further the conveyor (6) It is possible to easily control the rotation of the selection cylinder (4) while keeping the rotation of the constant.

[Brief description of drawings]

FIG. 1 is an explanatory plan view of a drive unit, FIG. 2 is an overall front view,
FIG. 3 is a side view of the same, FIG. 4 is a rear view of the same, FIG. 5 is an explanatory view of a sorting section, FIG. 6 is an explanatory view of a sorting and feeding section, FIG. 7 is an explanatory view of the same plane, and FIG. FIG. 9 is a plan view of the sorting unit, FIG. 9 is a side view of the driving unit, FIG. 10 is a partial view of the sorting gutter unit, FIG. 11 is a side view of the conveyor unit, and FIG. FIG. 13 is a perspective explanatory view of the tank portion. (6) …… Conveyor (10) …… Spindle (30) …… Axis (32a) …… Motor shaft (53) …… Conveyor (91) …… Sorting unit

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Chiaki Kadota 1-32, Chaya-cho, Kita-ku, Osaka, Osaka Prefecture Yanmar Agricultural Machinery Co., Ltd. (72) Eiichi Okamoto 1-32, Chaya-cho, Kita-ku, Osaka-shi, Osaka No. Yanmar Agricultural Machinery Co., Ltd. (56) Reference JP-A-59-196785 (JP, A) Patent 84033 (JP, C1)

Claims (1)

[Scope of utility model registration request] 1. A plurality of sorting cylinders around a vertically extending main shaft (10).
(4) ... rotate and revolve around the ground, and the waste grain extraction conveyor (53) and the high-quality grain extraction conveyor (6) are erected adjacent to the side of the sorting cylinder (4), and the sorting cylinder ( In the grain selection device that arranges the grain supply hopper (3) almost directly above 4),
Arranged on the lower end side of the selection cylinder (4) is a rotation transmission means (64) (65) (66) for rotating the main shaft (10) by connecting the selection cylinder (4).
Further, the drive motor (3) is provided below the rotation transmission means (64) (65) (66).
2) is installed sideways, and the above conveyors (6)
(53) The drive input section on the lower end side is provided at substantially the same height as the drive motor (32), and the motor shaft (32a) of the drive motor (32) is connected to the high-quality grain takeout conveyor (35) via the deceleration transmission means (35). 6) Drive input shaft
A grain selecting device characterized in that a lower end side of the main shaft (10) is connected to the drive input shaft (30) through a speed change shaft (26) which connects (30) and vertically extends.