Screen cleaning device for rice processing

Abstract

The utility model discloses a screen cleaning device for rice processing. The screen cleaning device comprises a bottom frame base, an outer barrel, a feeding upper cover, an air barrel, an inner barrel and a driving assembly. The outer cylinder is fixed on the underframe seat, and the outer cylinder, the air cylinder and the inner cylinder are sequentially connected in a sleeving manner; an impurity outlet is formed in one side of the lower end of the inner side of the outer cylinder; the feeding upper cover is fixed on the outer cylinder; an inner cylinder shaft tube is arranged below the inner cylinder and extends out from the lower part of the outer cylinder; the interior of the inner barrel shaft pipe is communicated with the interior of the inner barrel to form a rice outlet pipe orifice; a rice feeding hopper is arranged in the center of the upper end of the feeding upper cover; a rice feeding pipe is arranged below the rice feeding hopper and extends into the inner barrel; a stirring device is arranged in the inner cylinder, and conical ventilation holes are formed in the side wall of the inner cylinder; the driving assembly drives the inner cylinder to rotate, the air cylinder and the lower end of the inner cylinder rotate relatively through the planetary gear set, and rice is injected into the inner cylinder through the rice feeding hopper. The rice is discharged from a rice outlet pipe opening after being centrifugally cleaned in the inner cylinder; according to the screening device, centrifugal impurity removal is adopted, and fine impurities in the rice can be removed more finely.

Description

Technical Field

[0001] This utility model belongs to the technical field of auxiliary equipment for rice processing, and specifically relates to a cleaning and screening device for rice processing. Background Technology

[0002] Rice is a finished product made from paddy rice through processes such as cleaning, hulling, milling, and finishing. During the collection, storage, and transportation of paddy rice, impurities may be mixed in. Traditional rice impurity removal uses vibration-type impurity removal, which can remove larger particles of impurities, but the paddy rice is not tumbled enough to further remove fine powder impurities. Therefore, in order to further remove impurities from paddy rice, this technical solution proposes a device that can further clean and sieve paddy rice. Summary of the Invention

[0003] The purpose of this invention is to solve the above-mentioned problems and to provide a rice cleaning and sieving device.

[0004] A rice cleaning and sieving device for rice processing includes: a base frame, an outer cylinder, a feed cover, an air duct, an inner cylinder, and a drive assembly; the outer cylinder is fixed on the base frame, and the outer cylinder, air duct, and inner cylinder are sequentially nested together; a discharge port is provided on one side of the lower inner end of the outer cylinder; the feed cover is fixed on the outer cylinder; an inner cylinder shaft tube is provided below the inner cylinder, extending from below the outer cylinder; the inner cylinder shaft tube communicates with the interior of the inner cylinder to form a rice discharge port; a rice hopper is provided at the center of the upper end of the feed cover; a rice inlet pipe is located below the rice inlet pipe and extends into the inner cylinder; an agitator is provided in the inner cylinder, and a conical vent is provided on the side wall of the inner cylinder; the drive assembly drives the inner cylinder to rotate, and the lower end of the air duct and the inner cylinder rotate relative to each other through a planetary gear set, and rice is injected into the inner cylinder through the rice inlet hopper; after centrifugation to remove impurities in the inner cylinder, the rice is discharged from the rice discharge port.

[0005] The inner cylinder has a rice inlet at the center of its top, and a return arc surface is provided on the inner edge of the rice inlet. The rice inlet tube extends into the inner cylinder from the rice inlet. The stirring device includes a spiral stirring blade and a deflecting flange. There are at least two sets of spiral stirring blades, which are spirally arranged on the side wall of the inner cylinder. There are multiple deflecting flanges, which are arranged in a ring array at the bottom of the inner cylinder.

[0006] The inner cylinder shaft tube is equipped with a T-shaped pipe valve and a pipe valve spring; the upper end of the T-shaped pipe valve is a circular plug, and the lower end of the T-shaped pipe valve is a stepped optical shaft rod. A spring washer is sleeved below the stepped optical shaft rod, and the spring washer is engaged with the middle of the stepped optical shaft rod. A spring support is provided at the upper end of the inner cylinder shaft tube. The T-shaped pipe valve can seal the upper end of the inner cylinder shaft tube located at the bottom of the inner cylinder. The pipe valve spring is sleeved on the stepped optical shaft rod of the T-shaped pipe valve. The upper end of the pipe valve spring supports the lower end face of the spring support, and the lower end of the pipe valve spring supports the upper end face of the spring washer. The interior of the inner cylinder shaft tube is connected to the interior of the inner cylinder to form a rice outlet. The T-shaped pipe valve seals the inner cylinder shaft tube through the pipe valve spring.

[0007] The inner sidewall of the air duct is vertically provided with multiple vertical blades, each of which is an arc-shaped fan blade; the vertical blades and the sidewall of the air duct are provided with multiple ventilation side holes; multiple second auxiliary wheels are arranged in a ring array; an inner cylinder bushing opening is provided at the center of the bottom of the inner side of the air duct; multiple ventilation bottom holes are arranged in a ring array next to the inner cylinder bushing opening.

[0008] The outer cylinder has a recessed stop along its inner upper edge; the lower end of the outer cylinder has a through hole for the outer cylinder shaft; the edge of the feed cover is fastened to the outer edge of the upper end of the outer cylinder by bolts.

[0009] The inner cylinder shaft tube has a central gear ring on its upper outer side; an internal gear ring is provided at the inner cylinder shaft sleeve opening; multiple planetary gear shafts are arranged in a ring array on the upper inner side of the outer cylinder shaft through hole; each planetary gear shaft is fitted with a planetary gear, and the central gear ring, planetary gear shaft, and internal gear ring form a planetary gear set.

[0010] The outer cylinder is axially connected to a first auxiliary wheel; a second auxiliary wheel is provided at the upper edge of the side wall of the air duct; multiple first and second auxiliary wheels are provided, and multiple first auxiliary wheels roll and rub against the upper end of the outer end face of the air duct body; multiple second auxiliary wheels roll and rub against the upper end of the outer wall of the inner cylinder.

[0011] The base frame is provided with a motor mounting bracket on one side; the upper end of the base frame is provided with an outer cylinder fixing support, and the lower end of the outer cylinder is fixed on the outer cylinder fixing support.

[0012] The drive assembly includes: a drive motor, a main drive pulley, a driven pulley, a drive belt, and a motor controller; the drive motor is fixed to a motor mounting base, and the main drive pulley is fixed to the electric spindle of the drive motor; a multi-faceted connecting part is located at the lower outer end of the inner cylinder shaft tube, the driven pulley is sleeved and fixed to the multi-faceted connecting part, and the drive belt is sleeved on the main drive pulley and the driven pulley; the motor controller is fixed to the outer cylinder; the motor controller is electrically connected to the drive motor.

[0013] This technical solution provides a rice cleaning and sieving device, which includes: a base frame, an outer cylinder, a feeding cover, an air duct, an inner cylinder, and a drive assembly; the outer cylinder is fixed on the base frame, and the outer cylinder, air duct, and inner cylinder are sequentially connected; a discharge port is provided on one side of the lower inner end of the outer cylinder; the feeding cover is fixed on the outer cylinder; an inner cylinder shaft tube is provided below the inner cylinder, and the inner cylinder shaft tube extends from below the outer cylinder; the interior of the inner cylinder shaft tube communicates with the interior of the inner cylinder to form a rice discharge port; a rice hopper is provided at the center of the upper end of the feeding cover; a rice inlet pipe is located below the rice inlet pipe and extends into the inner cylinder; a stirring device is provided in the inner cylinder, and a conical vent is provided on the side wall of the inner cylinder; the drive assembly drives the inner cylinder to rotate, and the lower end of the air duct and the inner cylinder rotate relative to each other through a planetary gear set, and rice is injected into the inner cylinder through the rice inlet hopper; after centrifugation to remove impurities in the inner cylinder, the rice is discharged from the rice discharge port; this cleaning and sieving device uses centrifugal impurity removal, which can more finely remove small impurities from the rice. Attached Figure Description

[0014] Figure 1 This is an overall schematic diagram of a rice cleaning and sieving device according to the present invention;

[0015] Figure 2 This is a cross-sectional view of a rice cleaning and sieving device according to the present invention;

[0016] Figure 3 This is an elevation view of a rice cleaning and sieving device according to the present invention;

[0017] Figure 4 This is a schematic diagram of the frame structure of a rice cleaning and sieving device according to the present invention;

[0018] Figure 5 This is a cross-sectional schematic diagram of the air duct of a rice cleaning and sieving device according to the present invention;

[0019] Figure 6 This is a cross-sectional schematic diagram of the inner cylinder of a rice cleaning and sieving device according to the present invention;

[0020] Figure 7 This is a cross-sectional view of the bottom of the inner cylinder of a rice cleaning and sieving device according to the present invention;

[0021] In the diagram: 1. Base frame, 11. Motor mounting base, 12. Outer cylinder fixing support, 2. Outer cylinder, 21. Recessed stop, 22. First auxiliary wheel, 23. Outer cylinder shaft through hole, 24. Planetary gear shaft, 25. Planetary gear, 26. Waste outlet, 3. Feed cover, 31. Rice hopper, 311. Rice inlet pipe, 4. Air duct, 41. Vertical blades, 42. Ventilation side hole, 43. Second auxiliary wheel, 44. Inner cylinder shaft sleeve opening, 45. Ventilation bottom hole, 46. Internal gear ring, 5. Inner 51. Inner cylinder rice inlet; 52. Return arc surface; 53. Conical vent hole; 54. Spiral stirring blade; 55. Actuating flange; 56. Inner cylinder shaft tube; 561. Spring top support; 562. Multi-faceted connecting part; 563. Rice outlet pipe; 57. Central gear ring; 58. T-shaped pipe valve; 581. Circular plug; 583. Spring washer; 59. Pipe valve spring; 61. Drive motor; 62. Main drive pulley; 63. Driven pulley; 64. Drive belt; 65. Motor controller. Detailed Implementation

[0022] The technical solution will be further described clearly and completely below with reference to the accompanying drawings. The described embodiments are only a part of the technical solution, not all of the embodiments. All other embodiments obtained by those skilled in the art based on this technical solution without creative effort are within the scope of protection of this utility model.

[0023] Example 1

[0024] See Figures 1 to 7 As shown, a rice processing cleaning and screening device includes: a base frame 1, an outer cylinder 2, a feeding cover 3, an air duct 4, an inner cylinder 5, and a drive assembly;

[0025] The base frame 1 is provided with a motor fixing seat 11 on one side; the upper end of the base frame 1 is provided with an outer cylinder fixing support 12, and the lower end of the outer cylinder 2 is fixed on the outer cylinder fixing support 12, that is, the outer cylinder 2 is fixed on the base frame 1.

[0026] The outer cylinder 2 has a recessed stop 21 on the upper inner side, and a plurality of first auxiliary wheels 22 are connected to the recessed stop 21 in an annular shape; the lower inner end of the outer cylinder 2 has an outer cylinder shaft through hole 23; the edge of the feed cover 3 is fastened to the upper outer edge of the outer cylinder 2 by bolts; a plurality of planetary gear shafts 24 are arranged in an annular array on the upper inner surface of the outer cylinder shaft through hole 23; a planetary gear 25 is sleeved on each planetary gear shaft 24; a waste outlet 26 is provided on one side of the lower inner side of the outer cylinder 2.

[0027] The height of the discharge port 26 is lower than that of the outer cylinder 2;

[0028] The feed cover 3 has a rice hopper 31 at the center of its upper end; below the rice hopper 31 is a rice inlet pipe 311;

[0029] The inner sidewall of the air duct 4 is vertically provided with multiple vertical blades 41, each of which is an arc-shaped fan blade; the vertical blades 41 and the sidewall of the air duct 4 are provided with multiple ventilation side holes 42; multiple second auxiliary wheels 43 are provided at the upper edge of the sidewall of the air duct 4; the multiple second auxiliary wheels 43 are arranged in a circular array; an inner cylinder shaft sleeve opening 44 is provided at the center of the bottom of the inner side of the air duct 4; multiple ventilation bottom holes 45 are arranged in a circular array next to the inner cylinder shaft sleeve opening 44; an internal gear ring 46 is also provided on the inner cylinder shaft sleeve opening 44;

[0030] The air duct 4 is sleeved in the outer cylinder 2; multiple first auxiliary wheels 22 roll and rub against the upper end of the outer end face of the air duct 4; the internal gear ring 46 is sleeved with multiple planetary gears 25 and meshes with them for transmission;

[0031] The inner cylinder 5 has an inner cylinder rice inlet 51 at the top center, and a return arc surface 52 is provided on the inner side edge of the inner cylinder rice inlet 51; the rice inlet pipe 311 extends into the inner cylinder rice inlet 51.

[0032] The inner cylinder 5 has tapered vent holes 53 and spiral stirring blades 54 on its vertical sidewalls; there are several tapered vent holes 53 arranged in an alternating pattern; there are at least two sets of spiral stirring blades 54 arranged spirally, and each spiral stirring blade 54 has an arc surface with the center of the arc surface below the arc surface; the bottom surface of the inner cylinder 5 has a tactile flange 55, which is arc-shaped; there are multiple tactile flanges 55 arranged in a circular array.

[0033] The inner cylinder 5 is provided with an inner cylinder shaft tube 56 below it, and a central gear ring 57 is provided at the upper outer end of the inner cylinder shaft tube 56; the central gear ring 57 serves as a sun gear, and the central gear ring 57, planetary gear shaft 24, and internal gear ring 46 form a planetary gear set;

[0034] The inner cylinder shaft tube 56 is equipped with a T-shaped pipe valve 58 and a pipe valve spring 59; the upper end of the T-shaped pipe valve 58 is a circular plug 581, and the lower end of the T-shaped pipe valve 58 is a stepped optical shaft; the T-shaped pipe valve 58 can seal the upper end of the inner cylinder shaft tube 56 located at the bottom of the inner side of the inner cylinder 5.

[0035] The inner cylinder shaft tube 56 has a spring support 561 at its upper end; a multi-faceted connecting part 562 at its lower end; a valve spring 59 is sleeved on the stepped optical shaft of the T-shaped valve 58; a spring washer 583 is sleeved below the stepped optical shaft and is engaged in the middle of the stepped optical shaft; the upper end of the valve spring 59 supports the lower end face of the spring support 561, and the lower end of the valve spring 59 supports the upper end face of the spring washer 583; the interior of the inner cylinder shaft tube 56 is connected to the interior of the inner cylinder 5 to form a rice outlet 563.

[0036] The second auxiliary wheel 43 rolls and rubs against the upper end of the outer wall of the inner cylinder 5.

[0037] The drive assembly includes: a drive motor 61, a main drive pulley 62, a driven pulley 63, a drive belt 64, and a motor controller 65;

[0038] The drive motor 61 is fixed in the motor mounting base 11; the main drive pulley 62 is fixed on the electric spindle of the drive motor 61; the driven pulley 63 is fixed on the multi-faceted connecting part 562, and the driven pulley 63 and the inner cylinder 5 rotate synchronously; the drive belt 64 is sleeved on the main drive pulley 62 and the driven pulley 63; the drive motor 61 drives the inner cylinder 5 to rotate clockwise; the lower end of the inner cylinder 5 drives the air duct 4 to rotate counterclockwise through the planetary gear set;

[0039] The first auxiliary wheel 22 ensures the stability of the rotation of the air duct 4; the second auxiliary wheel 43 ensures the stability of the rotation of the inner cylinder 5.

[0040] The motor controller 65 is fixed on the outer cylinder 2; the mains power is connected to the motor controller 65 as a power source, and the motor controller 65 is connected to the drive motor 61 through a cable; the motor controller 65 controls the speed and start / stop of the drive motor 61.

[0041] The rice is placed in the inner cylinder 5; the drive motor 61 is started, and the air duct 4 and the inner cylinder 5 rotate relative to each other to generate a stronger centrifugal adsorption force. The spiral stirring blades 54 and the agitating flanges 55 in the inner cylinder cause the rice to tumble in the inner cylinder 5. After the rice tumbles upward due to centrifugal force, the return arc surface 52 can make the rice flow back to the center of the inner cylinder 5. After the impurities in the rice are centrifuged and separated, they push upward to support the T-shaped pipe valve 58, and the rice after impurity removal can be discharged, thus completing the rice impurity removal process.

Claims

1. A rice cleaning and screening device, comprising: The components are: a base frame (1), an outer cylinder (2), a feed cover (3), an air duct (4), an inner cylinder (5), and a drive assembly; characterized in that: the outer cylinder (2) is fixed on the base frame (1), and the outer cylinder (2), the air duct (4), and the inner cylinder (5) are sequentially connected; a discharge port (26) is provided on one side of the lower inner end of the outer cylinder (2); the feed cover (3) is fixed on the outer cylinder (2); an inner cylinder shaft tube (56) is provided below the inner cylinder (5), and the inner cylinder shaft tube (56) extends from below the outer cylinder (2); the interior of the inner cylinder shaft tube (56) is connected to the interior of the inner cylinder (5) to form a rice discharge port. The feed inlet (563) is provided with a rice hopper (31) at the center of the upper end of the feed cover (3); the rice hopper (311) is located below the rice inlet pipe (311), which extends into the inner cylinder (5); the inner cylinder (5) is provided with a stirring device, and the inner cylinder (5) has a conical vent hole (53) on its side wall; the drive assembly drives the inner cylinder (5) to rotate, and the air duct (4) and the lower end of the inner cylinder (5) rotate relative to each other through a planetary gear set, and the rice is injected into the inner cylinder (5) through the rice hopper (31); after the rice is centrifuged and impurities are removed in the inner cylinder (5), it is discharged from the rice outlet (563).

2. The rice processing cleaning and sieving device according to claim 1, characterized in that: The inner cylinder (5) is provided with an inner cylinder rice inlet (51) at the top center, and a return arc surface (52) is provided on the inner side edge of the inner cylinder rice inlet (51); the rice inlet pipe (311) extends into the inner cylinder (5) from the inner cylinder rice inlet (51); the stirring device includes: a spiral stirring blade (54) and a stirring flange (55), the spiral stirring blade (54) is provided with at least 2 sets, and the 2 sets of spiral stirring blades (54) are spirally arranged on the side wall of the inner cylinder (5); the stirring flange (55) is provided with multiple sets, and the multiple stirring flanges (55) are arranged in a ring array at the bottom of the inner cylinder (5).

3. The rice processing cleaning and sieving device according to claim 1, characterized in that: The inner cylinder shaft tube (56) is equipped with a T-shaped pipe valve (58) and a pipe valve spring (59); the upper end of the T-shaped pipe valve (58) is a circular plug (581), and the lower end of the T-shaped pipe valve (58) is a stepped optical shaft rod. A spring washer (583) is sleeved below the stepped optical shaft rod, and the spring washer is snapped into the middle of the stepped optical shaft rod body; a spring top support (561) is provided at the upper end of the inner cylinder shaft tube (56); the T-shaped pipe valve (58) can seal the bottom of the inner cylinder (5) with a spring top support (561). The upper end of the inner cylinder shaft tube (56); the pipe valve spring (59) is sleeved on the stepped optical shaft of the T-shaped pipe valve (58), the upper end of the pipe valve spring (59) supports the lower end face of the spring support (561), and the lower end of the pipe valve spring (59) supports the upper end face of the spring washer (583); the inside of the inner cylinder shaft tube (56) is connected to the inside of the inner cylinder (5) to form the rice outlet (563); the T-shaped pipe valve (58) seals the inner cylinder shaft tube (56) through the pipe valve spring (59).

4. The rice processing cleaning and sieving device according to claim 1, characterized in that: The inner sidewall of the air duct (4) is vertically provided with multiple vertical blades (41), each of which is an arc-shaped fan blade; the vertical blades (41) and the sidewall of the air duct (4) are provided with multiple ventilation side holes (42); multiple second auxiliary wheels (43) are arranged in a ring array; the center of the bottom of the inner side of the air duct (4) is provided with an inner cylinder shaft sleeve opening (44); multiple ventilation bottom holes (45) are arranged in a ring array next to the inner cylinder shaft sleeve opening (44).

5. The rice processing cleaning and sieving device according to claim 1, characterized in that: The outer cylinder (2) has a recessed stop (21) on the upper inner side; the lower inner end of the outer cylinder (2) has an outer cylinder shaft through hole (23); the edge of the feed cover (3) is fastened to the outer edge of the upper end of the outer cylinder (2) by bolts.

6. The rice processing cleaning and sieving device according to claim 1, characterized in that: The inner cylinder shaft tube (56) is provided with a central gear ring (57) on the upper outer side; the inner cylinder shaft sleeve opening (44) is provided with an internal gear ring (46); multiple planetary gear shafts (24) are arranged in a ring array on the upper inner side of the outer cylinder shaft through hole (23); each planetary gear shaft (24) is fitted with a planetary gear (25), and the central gear ring (57), planetary gear shaft (24), and internal gear ring (46) form a planetary gear set.

7. The rice processing cleaning and sieving device according to claim 1, characterized in that: The outer cylinder (2) is axially connected to a first auxiliary wheel (22); the upper edge of the side wall of the air duct (4) is provided with a second auxiliary wheel (43); there are multiple first auxiliary wheels (22) and second auxiliary wheels (43), and the multiple first auxiliary wheels (22) roll and rub against the upper end of the outer end face of the air duct (4); the multiple second auxiliary wheels (43) roll and rub against the upper end of the outer wall of the inner cylinder (5).

8. The rice processing cleaning and screening device according to any one of claims 1-6, characterized in that: The base frame (1) is provided with a motor fixing seat (11) on one side; the upper end of the base frame (1) is provided with an outer cylinder fixing support (12), and the lower end of the outer cylinder (2) is fixed on the outer cylinder fixing support (12).

9. The rice processing cleaning and sieving device according to claim 8, characterized in that: The drive assembly includes: a drive motor (61), a main drive pulley (62), a driven pulley (63), a drive belt (64), and a motor controller (65); the drive motor (61) is fixed on the motor mounting base (11), and the main drive pulley (62) is fixed on the electric spindle of the drive motor (61); the lower end of the inner cylinder shaft tube (56) has a multi-faceted connecting part (562), the driven pulley (63) is sleeved and fixed on the multi-faceted connecting part (562), and the drive belt (64) is sleeved on the main drive pulley (62) and the driven pulley (63); the motor controller (65) is fixed on the outer cylinder (2); the motor controller (65) is electrically connected to the drive motor (61).

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