阅读说明：本技术 一种具有稻谷和米粒筛选功能的碾米机振动筛 (Rice mill shale shaker with corn and grain of rice screening function ) 是由 廖迪立 于 2019-11-18 设计创作，主要内容包括：本发明公开了一种具有稻谷和米粒筛选功能的碾米机振动筛,包括振动筛外壳、滑轮、滑轨、第一筛网、第二筛网、底板和传动连杆,振动筛外壳的下部固定连接有滑轮,滑轮的下部安置在滑轨上,滑轨固定连接在支撑架上,振动筛外壳的左侧外壁通过连接件与传动连杆转动连接,振动筛外壳的内部安装有第一筛网,第一筛网的下部安置有第二筛网,第二筛网的下部安置有底板,第一筛网、第二筛网和底板上均固定连接有出料口,振动筛外壳的上部开设有进料口。本发明通过设置的振动筛外壳、滑轮、滑轨、第一筛网、第二筛网、底板和传动连杆,解决了稻谷中含有稻谷秸秆、树叶、小石子这类杂物,影响谷物碾米的效果问题。(The invention discloses a rice mill vibrating screen with a rice and grain screening function, which comprises a vibrating screen shell, pulleys, a slide rail, a first screen, a second screen, a bottom plate and a transmission connecting rod, wherein the lower part of the vibrating screen shell is fixedly connected with the pulleys, the lower part of the pulleys is arranged on the slide rail, the slide rail is fixedly connected onto a support frame, the outer wall of the left side of the vibrating screen shell is rotatably connected with the transmission connecting rod through a connecting piece, the first screen is arranged inside the vibrating screen shell, the second screen is arranged at the lower part of the first screen, the bottom plate is arranged at the lower part of the second screen, discharge holes are fixedly connected onto the first screen, the second screen and the bottom plate, and a feed inlet is formed in the upper part of the vibrating. According to the invention, through the arrangement of the vibrating screen shell, the pulley, the slide rail, the first screen, the second screen, the bottom plate and the transmission connecting rod, the problem that the effect of milling grains is influenced due to the fact that the rice contains impurities such as rice straws, leaves and small stones is solved.)

1. A rice mill vibrating screen with rice and rice screening function comprises a vibrating screen shell (10), a transmission connecting rod (14), a sliding rail (15), a pulley (24), a first screen (25), a second screen (26) and a bottom plate (27), wherein the left end of the transmission connecting rod (14) is in transmission connection with a worm reducer (2) through a transmission wheel (3), the worm reducer (2) is fixedly connected with a support frame (22) through a connecting seat (20), a belt pulley on an input shaft of the worm reducer (2) is in transmission connection with a belt pulley on an output shaft of a motor (1) through a speed reducer belt (12), the motor (1) is fixedly connected with the support frame (22) through the connecting seat (20), a belt pulley on an output shaft of the motor (1) is in transmission connection with a belt pulley on an input shaft of a rice mill head (5) through a rice mill belt (11), the upper portion fixedly connected with rice machine hopper (21) of rice machine aircraft nose (5), the right side fixedly connected with pressure component (7) of rice machine aircraft nose (5), upper portion fixedly connected with feeder hopper (6) of pressure component (7), the lower part fixedly connected with speed reduction box (8) of pressure component (7), speed reduction box suction opening (19) has been seted up on the left tank wall of speed reduction box (8), speed reduction box suction opening (19) communicate with fan air intake (17) on fan (4) each other through fan return bend (9), fan air intake (17) on fan (4) communicate with rice machine suction opening (18) that rice machine aircraft nose (5) lower part was seted up each other through fan return bend (9), the epaxial belt pulley transmission of output of fan belt (13) and motor (1) is passed through to belt pulley on fan (4) input shaft, the method is characterized in that: the vibrating screen is characterized in that a pulley (24) is fixedly connected to the lower portion of the vibrating screen shell (10), the lower portion of the pulley (24) is arranged on a sliding rail (15), the sliding rail (15) is fixedly connected to a supporting frame (22), the outer wall of the left side of the vibrating screen shell (10) is rotatably connected with a transmission connecting rod (14) through a connecting piece (28), a first screen (25) is arranged inside the vibrating screen shell (10), a second screen (26) is arranged on the lower portion of the first screen (25), a bottom plate (27) is arranged on the lower portion of the second screen (26), discharge holes (16) are fixedly connected to the first screen (25), the second screen (26) and the bottom plate (27), and a feed port (30) is formed in the upper portion of the vibrating screen shell (10).

2. The rice mill vibrating screen with the rice and rice screening function as claimed in claim 1, wherein: the four pulleys (24) are arranged, the pulleys (24) are arranged at four corners of the lower portion of the vibrating screen shell (10), the pulleys (24) are fixedly connected with the vibrating screen shell (10) through a wheel frame (38), and the upper portion of the wheel frame (38) is fixedly connected with the outer wall of the lower portion of the vibrating screen shell (10) through a fixing seat (40).

3. The rice mill vibrating screen with the rice and rice screening function as claimed in claim 2, wherein: the pulley (24) is fixedly connected with the wheel frame (38) through a connecting shaft (39), the pulley (24) is rotatably connected with the connecting shaft (39), the pulley (24) is in rolling connection with a wheel groove (41) formed in the upper portion of the sliding rail (15), and the pulley (24) is matched with the wheel groove (41).

4. The rice mill vibrating screen with the rice and rice screening function as claimed in claim 3, wherein: the both ends of slide rail (15) all with support frame (22) fixed connection, and slide rail (15) right side slope setting down, fixedly connected with anchor strut (23) between support frame (22).

5. The rice mill vibrating screen with the rice and rice screening function as claimed in claim 1, wherein: the connecting piece (28) is fixedly connected to the outer wall of the left side of the vibrating screen shell (10), the connecting piece (28) is connected with the right end of the transmission connecting rod (14) in a hanging mode through a connecting ring, the left end of the transmission connecting rod (14) is fixedly connected with the transmission wheel (3) through a fixed shaft (29), the transmission connecting rod (14) is rotatably connected with the fixed shaft (29) through the connecting ring, and the transmission wheel (3) is fixedly connected with an output shaft of the worm reducer (2).

6. The rice mill vibrating screen with the rice and rice screening function as claimed in claim 1, wherein: the sieve mesh (31) which is uniformly distributed is arranged on the first sieve mesh (25), the clamping plates (35) are fixedly connected to the two sides of the first sieve mesh (25), the side baffle (36) is fixedly connected to the upper portion of the connecting portion of the first sieve mesh (25) and the clamping plates (35), and the side baffle (36) is provided with a second insertion hole (37).

7. The rice mill vibrating screen with the rice and rice screening function as claimed in claim 6, wherein: first screen cloth (25) pass through cardboard (35) joint on draw-in groove (34) of seting up on shale shaker shell (10) inner wall, cardboard (35) cooperate with draw-in groove (34), shale shaker shell (10) correspond on side shield (36) second jack (37) position department and seted up first jack (33), discharge gate (16) fixed connection is at first screen cloth (25) right-hand member.

8. The rice mill vibrating screen with the rice and rice screening function as claimed in claim 1, wherein: the sieve holes (31) on the first sieve screen (25) and the second sieve screen (26) are sequentially reduced in equal proportion, the connection mode of the second sieve screen (26) and the bottom plate (27) and the vibrating sieve shell (10) is the same as that of the first sieve screen (25) and the vibrating sieve shell (10), and the first sieve screen (25), the second sieve screen (26) and the bottom plate (27) are all arranged in an inner cavity (32) of the vibrating sieve shell (10).

Technical Field

The invention relates to the technical field of rice mill equipment, in particular to a rice mill vibrating screen with a rice and rice grain screening function.

Background

With the development of industrial technology and information technology, the technology development brings a new development opportunity to a plurality of traditional industries, the traditional rice planting industry is also greatly promoted to replace the traditional manual operation from the modern technological planting production to the processing ditch, but the rice harvested in the rice planting area contains a large amount of sundries, including rice straws, leaves, small stones and the like, and the sundries are mixed in the rice to conduct rice milling, so that the rice milling effect is greatly influenced.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the vibrating screen of the rice mill with the function of screening the rice and the grains of rice, which solves the problem that the rice contains impurities such as rice straws, leaves and small stones, which influence the milling effect of grains.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: a rice mill vibrating screen with a rice and rice screening function comprises a vibrating screen shell, a pulley, a slide rail, a first screen, a second screen, a bottom plate and a transmission connecting rod, wherein the left end of the transmission connecting rod is in transmission connection with a worm reducer through a transmission wheel, the worm reducer is fixedly connected with a support frame through a connecting seat, a belt pulley on an input shaft of the worm reducer is in transmission connection with a belt pulley on an output shaft of a motor through a speed reducer belt, the motor is fixedly connected with the support frame through the connecting seat, the belt pulley on the output shaft of the motor is in transmission connection with a belt pulley on an input shaft of a head of a rice mill through the belt of the rice mill, the upper part of the head of the rice mill is fixedly connected with a hopper of the rice mill, the right side of the head of the rice mill is fixedly connected with a pressure part, the, the speed reduction box comprises a speed reduction box body, a speed reduction box body suction opening, a fan air inlet, a fan bent pipe, a fan air inlet, a rice mill suction opening, a belt pulley, a pulley wheel, a pulley, a sliding rail, a support frame, a transmission connecting rod, a first screen, a second screen, a bottom plate, discharge ports, a discharge port, a motor and a fan, wherein the speed reduction box body suction opening is formed in the box wall on the left side of the speed reduction box body, the speed reduction box body suction opening is communicated with the fan air inlet on the fan through the fan bent pipe, the fan air inlet on the fan is communicated with the rice mill suction opening formed in the lower portion of a head of the rice mill, the belt pulley on a fan input shaft is in transmission connection with the belt pulley on a motor output shaft through a fan belt, the pulley is fixedly connected to the lower portion of a, the upper part of the vibrating screen shell is provided with a feeding hole.

Preferably, the number of the pulleys is four, the pulleys are arranged at four corners of the lower portion of the vibrating screen shell, the pulleys are fixedly connected with the vibrating screen shell through a wheel frame, and the upper portion of the wheel frame is fixedly connected with the outer wall of the lower portion of the vibrating screen shell through a fixing seat.

Preferably, the pulley is fixedly connected with the wheel carrier through a connecting shaft, the pulley is rotatably connected with the connecting shaft, the pulley is in rolling connection with a wheel groove formed in the upper portion of the sliding rail, and the pulley is matched with the wheel groove.

Preferably, both ends of the slide rail are fixedly connected with the support frames, the right side of the slide rail is arranged in a downward inclined mode, and reinforcing rods are fixedly connected between the support frames.

Preferably, the connecting piece is fixedly connected to the outer wall of the left side of the vibrating screen shell, the connecting piece is connected with the right end of the transmission connecting rod in a hanging mode through a connecting ring, the left end of the transmission connecting rod is fixedly connected with the transmission wheel through a fixed shaft, the transmission connecting rod is rotatably connected with the fixed shaft through the connecting ring, and the transmission wheel is fixedly connected with the output shaft of the worm reducer.

Preferably, the first screen mesh is provided with uniformly distributed sieve pores, the two sides of the first screen mesh are fixedly connected with clamping plates, the upper part of the connecting part of the first screen mesh and the clamping plates is fixedly connected with side baffles, and the side baffles are provided with second insertion holes.

Preferably, the first screen is clamped on a clamping groove formed in the inner wall of the vibrating screen shell through a clamping plate, the clamping plate is matched with the clamping groove, a first insertion hole is formed in the position, corresponding to the second insertion hole, of the side baffle of the vibrating screen shell, and the discharge hole is fixedly connected to the right end of the first screen.

Preferably, the sieve pores on the first sieve and the second sieve are sequentially reduced in equal proportion, the connection mode of the second sieve and the vibrating screen shell is the same as that of the first sieve and the vibrating screen shell, and the first sieve, the second sieve and the bottom plate are all arranged in the inner cavity of the vibrating screen shell.

(III) advantageous effects

The invention provides a rice mill vibrating screen with a rice and rice screening function, which has the following beneficial effects:

(1) according to the invention, through the arrangement of the vibrating screen shell, the pulley, the slide rail, the first screen, the second screen, the bottom plate and the transmission connecting rod, the transmission connecting rod is utilized to drive the vibrating screen shell and the screened paddy inside the vibrating screen shell to reciprocate together, the first screen, the second screen and the bottom plate screen the paddy in the reciprocating process, and the paddy is quickly separated from doped impurities and empty paddy, so that the subsequent processing of milling the paddy is facilitated, the screening speed is high, the screening efficiency is high, the whole structure is simple, the use and the operation are convenient, the popularization and the use are convenient, and the problem that the milling effect of grains is influenced due to the fact that the paddy contains the impurities such as paddy straws, leaves and cobblestones is solved.

(2) According to the invention, when rice and other grains need to be screened, only the screen clamped in the shell of the vibrating screen needs to be replaced, the original screen is directly detached, the screen meeting the use requirement is replaced and installed, and the screen can be screened, and the screen is fixedly installed on the inner wall of the shell of the vibrating screen in a clamping mode and is assisted and fixed by the bolt, so that a user can conveniently and quickly detach the screen, the speed is high, the efficiency is high, and the convenience in use of the vibrating screen is greatly improved.

Drawings

FIG. 1 is a schematic view of the structure of the present invention

FIG. 2 is a schematic illustration of the installation of the shaker housing of FIG. 1 in accordance with the present invention;

FIG. 3 is a schematic top half-sectional view of the shaker housing of FIG. 1 in accordance with the present invention;

FIG. 4 is a schematic structural view of the housing of the vibrating screen of FIG. 1 according to the present invention;

FIG. 5 is a schematic illustration of the first screen of FIG. 1 according to the present invention;

fig. 6 is a schematic structural view of the pulley and the slide rail shown in fig. 1.

The reference numbers in the figures are: 1. a motor; 2. a worm reducer; 3. a driving wheel; 4. a fan; 5. a rice machine head; 6. a feed hopper; 7. a pressure member; 8. a reduction box body; 9. bending a fan pipe; 10. a shaker housing; 11. a rice machine belt; 12. a speed reducer belt; 13. a fan belt; 14. a transmission connecting rod; 15. a slide rail; 16. a discharge port; 17. an air inlet of the fan; 18. an air suction opening of the rice mill; 19. a speed reduction box body air suction opening; 20. a connecting seat; 21. a rice machine hopper; 22. a support frame; 23. a reinforcing rod; 24. a pulley; 25. a first screen; 26. a second screen; 27. a base plate; 28. a connecting member; 29. a fixed shaft; 30. a feed inlet; 31. screening holes; 32. an inner cavity; 33. a first jack; 34. a card slot; 35. clamping a plate; 36. a side dam; 37. a second jack; 38. a wheel carrier; 39. a connecting shaft; 40. a fixed seat; 41. a wheel groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, one embodiment of the present invention is shown; a rice mill vibrating screen with a rice and rice screening function comprises a vibrating screen shell 10, a transmission connecting rod 14, a sliding rail 15, a pulley 24, a first screen 25, a second screen 26 and a bottom plate 27, wherein the left end of the transmission connecting rod 14 is in transmission connection with a worm reducer 2 through a transmission wheel 3, the worm reducer 2 is fixedly connected with a support frame 22 through a connecting seat 20, the worm reducer 2 drives the transmission connecting rod 14 to move through the transmission wheel 3, so that the transmission of the transmission connecting rod 14 is facilitated, a belt pulley on an input shaft of the worm reducer 2 is in transmission connection with a belt pulley on an output shaft of a motor 1 through a reducer belt 12, the motor 1 is fixedly connected with the support frame 22 through the connecting seat 20, so that the motor 1 transmits power output by the motor to the worm reducer 2 to drive the worm reducer 2 to run, the belt pulley on the output shaft of the motor 1 is in transmission connection with a belt pulley on, the rice milling machine is characterized in that the operation of the motor 1 is convenient to drive the rice milling machine head 5 to operate, so that rice milling operation is realized, the upper part of the rice milling machine head 5 is fixedly connected with a rice milling machine hopper 21, rice is convenient to be conveyed into the rice milling machine head 5 by the rice milling machine hopper 21, the right side of the rice milling machine head 5 is fixedly connected with a pressure part 7, the upper part of the pressure part 7 is fixedly connected with a feed hopper 6, the lower part of the pressure part 7 is fixedly connected with a reduction box body 8, the left side of the box wall of the reduction box body 8 is provided with a reduction box body suction opening 19, the reduction box body suction opening 19 is mutually communicated with a fan air inlet 17 on the fan 4 through a fan bent pipe 9, the fan air inlet 17 on the fan 4 is mutually communicated with a rice milling machine suction opening 18 arranged at the lower part of the rice milling machine head 5 through the fan bent pipe, connecting an upper fan bent pipe 9 between a fan air inlet 17 and a rice mill air suction opening 18, then starting a motor 1 to drive a rice mill head 5 to operate through a rice mill belt 11, forming pressure on the interior of a rice sieve of the rice mill head 5 by a pressure part 7, and mutually rubbing and extruding clean millet through the rice mill head 5 to achieve the aim of hulling, wherein the hulled clean millet is white rice, the white rice extrudes the pressure part 7 to freely fall into a new speed reduction box body 8, at the moment, the fan bent pipe 9 between the fan air inlet 17 and a speed reduction box body air suction opening 19 is not connected, so that the speed reduction box body 8 has no strong pumping and conveying airflow, the white rice directly enters a multilayer suction type separation sieve box which is previously replaced with a proper sieve mesh 31 through the speed reduction box body 8 to be screened, and the impurity-containing millet is screened in a same way, and the white rice is mostly whole rice by a first sieve mesh 25 in the multilayer suction type separation sieve box, the second screen 26 selects a few whole rice and half rice, then the bottom plate 27 screens out broken rice, so as to achieve rice milling and white rice sorting, the lower part of the vibrating screen shell 10 is fixedly connected with a pulley 24, the lower part of the pulley 24 is arranged on a slide rail 15, so that the vibrating screen shell 10 can slide on the slide rail 15 by the pulley 24, the slide rail 15 is fixedly connected on a support frame 22, so that the slide rail 15 is fixed by the support frame 22, the left outer wall of the vibrating screen shell 10 is rotatably connected with a transmission connecting rod 14 by a connecting piece 28, so that the vibrating screen shell 10 is pulled by the transmission connecting rod 14, so as to drive the whole screen body to reciprocate, the first screen 25 is arranged in the vibrating screen shell 10, the second screen 26 is arranged at the lower part of the first screen 25, the bottom plate 27 is arranged at the lower part of the second screen 26, the discharge holes 16 are fixedly connected on the first screen 25, the second screen 26 and the, a plurality of screen cloth is convenient for better screening its article such as corn and rice, and discharge gate 16 is convenient for stay the article discharge shale shaker on the screen cloth after its screening, and feed inlet 30 has been seted up on the upper portion of shale shaker shell 10, and feed inlet 30 sets up the unloading end at 8 lower part ejection of compact stock guides of reduction box, is convenient for carry the inside of shale shaker from feed inlet 30 with the article that need screening processing to be convenient for screen its article.

Further, four pulleys 24 are provided, and the pulleys 24 are arranged at four corners of the lower portion of the vibrating screen shell 10, the pulleys 24 are fixedly connected with the vibrating screen shell 10 through a wheel frame 38, the upper portion of the wheel frame 38 is fixedly connected with the outer wall of the lower portion of the vibrating screen shell 10 through a fixing seat 40, and the pulleys 24 are conveniently and fixedly connected to the lower portion of the vibrating screen shell 10 through the wheel frame 38 and the fixing seat 40.

Further, the pulley 24 is fixedly connected with the wheel frame 38 through a connecting shaft 39, the pulley 24 is rotatably connected with the connecting shaft 39, the pulley 24 is in rolling connection with a wheel groove 41 formed in the upper portion of the slide rail 15, the pulley 24 is matched with the wheel groove 41, the pulley 24 and the wheel frame 38 are conveniently connected together through the connecting shaft 39, and the wheel groove 41 formed in the upper portion of the slide rail 15 is matched and connected with the pulley 24.

Further, the both ends of slide rail 15 all with support frame 22 fixed connection, and slide rail 15 right side slope down sets up, fixedly connected with anchor strut 23 between the support frame 22, is convenient for utilize support frame 22 to promote the stability of slide rail 15, guarantees the use that slide rail 15 can be stable, utilizes anchor strut 23 to promote the stability between the support frame 22.

Further, the connecting piece 28 is fixedly connected to the outer wall of the left side of the vibrating screen shell 10, the connecting piece 28 is connected with the right end of the transmission connecting rod 14 in a hanging mode through a connecting ring, the left end of the transmission connecting rod 14 is fixedly connected with the transmission wheel 3 through a fixing shaft 29, the transmission connecting rod 14 is rotatably connected with the fixing shaft 29 through the connecting ring, the transmission wheel 3 is fixedly connected with the output shaft of the worm speed reducer 2, the motor 1 on the rice mill can drive the transmission wheel 3 to rotate through the speed reducer belt 12, the transmission wheel 3 drives the transmission connecting rod 14 to move, and therefore the vibrating screen is driven to move back and.

Further, offer evenly distributed's sieve mesh 31 on the first screen cloth 25, the equal fixedly connected with cardboard 35 in both sides of first screen cloth 25, the upper portion fixedly connected with side shield 36 of the position department of being connected of first screen cloth 25 and cardboard 35, second jack 37 has been seted up on the side shield 36, sieve mesh 31 is convenient for first screen cloth 25 and is sieved article, utilize cardboard 35 to connect its first screen cloth 25 joint to the inner wall of shale shaker shell 10 on simultaneously, side shield 36 conveniently keeps off its article of sieving on first screen cloth 25.

Further, first screen cloth 25 passes through cardboard 35 joint on the draw-in groove 34 of seting up on shale shaker shell 10 inner wall, cardboard 35 cooperatees with draw-in groove 34, first jack 33 has been seted up to second jack 37 position department on shale shaker shell 10 corresponds the side shield 36, 16 fixed connection at first screen cloth 25 right-hand members of discharge gate, be convenient for utilize cardboard 35 with its first screen cloth 25 joint to the draw-in groove 34 on shale shaker shell 10 inner wall, thereby promote the stability that first screen cloth 25 is connected with shale shaker shell 10, utilize the bolt to insert on first jack 33 and second jack 37 simultaneously, thereby fix the side shield 36 on its first screen cloth 25 to the inner wall of shale shaker shell 10, supplementary first screen cloth 25 is fixed.

Further, the screen holes 31 on the first screen 25 and the second screen 26 are sequentially reduced in equal proportion, the connection mode of the second screen 26 and the bottom plate 27 with the vibrating screen shell 10 is the same as that of the first screen 25 with the vibrating screen shell 10, the first screen 25, the second screen 26 and the bottom plate 27 are all arranged in the inner cavity 32 of the vibrating screen shell 10, the second screen 26 and the bottom plate 27 are fixedly arranged inside the vibrating screen shell 10, meanwhile, the screen holes 31 with different sizes are convenient for more thoroughly screening objects, and meanwhile, the discharge holes 16 on the first screen 25 and the second screen 26 are oppositely arranged on the symmetry axis of the discharge holes 16 on the bottom plate 27, and the symmetry axis of the discharge holes 16 on the first screen 25 and the symmetry axis of the second screen 26 are opposite to each other.

The working principle is as follows: when in use, rice directly enters the inner part of the vibrating screen shell 10 from the feeding hole 30 at the upper part of the vibrating screen shell 10 and then falls on the first screen mesh 25, meanwhile, the motor 1 on the rice mill drives the worm reducer 2 to run by using the reducer belt 12, the worm reducer 2 drives the transmission wheel 3 to rotate, the transmission wheel 3 drives the transmission connecting rod 14 to move, the moving transmission connecting rod 14 drives the vibrating screen to move back and forth, the pulley 24 rolls in the wheel groove 41 on the slide rail 15 along with the vibrating screen shell 10, the first screen mesh 25 screens the rice when the vibrating screen shell 10 moves back and forth, the screened goods fall on the second screen mesh 26 for secondary screening, the screened goods fall on the bottom plate 27 to be discharged, the goods on the first screen mesh 25, the second screen mesh 26 and the bottom plate 27 are discharged into an external collection box from the discharging hole 16, the articles on the bottom wall of the vibrating screen shell 10 fall out from the right side and are collected by the collecting box, and when rice or other grains need to be screened, the first screen mesh 25, the second screen mesh 26 and the bottom plate 27 are directly detached from the vibrating screen shell 10, replaced by screen meshes with proper mesh diameters, and replaced by new screen meshes for use.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.