CN115970823A - Cereal raw materials rubbing crusher - Google Patents

Abstract

The invention relates to the technical field of feed processing, and particularly provides a grain raw material pulverizer, which comprises an outer shell component, a power motor and a pulverizing unit, wherein the outer shell component comprises an outer shell and an inner shell, the outer shell is sleeved outside the inner shell, a gap is formed between the outer shell and the inner shell, an air inlet is formed in the inner wall of the inner shell to communicate the inside of the inner shell and the space between the outer shell and the inner shell, and the pulverizer also comprises: the air suction unit is positioned between the outer shell and the inner shell and used for extracting air of the outer shell so as to extract air at a feed port in the inner shell and on the inner shell; the filtering unit is arranged in the shell and is positioned at the position of the air inlet; according to the invention, the air suction unit and the filtering unit are arranged, so that an inward air flow is generated at the feed inlet of the pulverizer, and dust or dust generated when the grain raw materials are put in and pulverized is squeezed into the filtering unit, thereby preventing the dust from escaping.

Description

Cereal raw materials rubbing crusher

Technical Field

The invention relates to the technical field of feed processing, in particular to a grain raw material crusher.

Background

The feed is a general term of food of all animals raised by people, generally, the feed mainly refers to food of animals raised in agriculture or animal husbandry, and comprises more than ten kinds of feed raw materials such as soybean, soybean meal, corn, fish meal, amino acid, miscellaneous meal, whey powder, grease, meat and bone meal, grains, feed additives and the like.

At present, when the fodder is processed, cereal raw materials, such as soybean, corn and the like, need to be used, when processing the fodder, the cereal raw materials are smashed through the cereal raw materials rubbing crusher, when the cereal raw materials are smashed, it can produce a large amount of dusts to discover at present the kibbling in-process of cereal raw materials, for example when toppling over the raw materials to rubbing crusher, the dust can be raised to the dust of cereal raw materials self-carrying, or the powder that produces when smashing produces the dust because the vibration is waved in the air, the staff is worked in the environment that is full of the dust for a long time, can produce the injury to the health, for example the pneumoconiosis, belong to one kind of occupational disease, mainly because work in the dust environment for a long time and cause.

For example, chinese patent publication No. CN107377094a discloses a grinding type grain grinder, which is capable of scattering ground dust from an upper end feed port when grinding grains and also lifting dust generated when pouring grain materials, and thus, the present application proposes a grain material grinder.

Disclosure of Invention

The invention aims to provide a grain raw material grinder to solve the problem that dust is generated when the grain raw material grinder grinds grains at present.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a cereal raw materials rubbing crusher, rubbing crusher includes shell subassembly, power motor and crushing unit, shell subassembly includes shell and inner shell, the shell cover is established in the inner shell outside, and has the space between shell and the inner shell, be provided with the air inlet on the inner wall of inner shell with the intercommunication between the inside of inner shell and the inner shell, rubbing crusher still includes:

the air suction unit is positioned between the outer shell and the inner shell and used for extracting air of the outer shell so as to extract air at a feed port in the inner shell and on the inner shell;

and the filtering unit is arranged in the shell and is positioned at the position of the air inlet.

Further, the suction unit includes:

the shaftless fan blades are rotatably connected into the shell and are of annular structures, and a plurality of fan blades are arranged on the inner walls of the shaftless fan blades to drive air to flow;

the magnetic blocks are arranged on the outer wall of the shaftless fan blade and are uniformly distributed around the axis of the shaftless fan blade in the circumferential direction; and

the coils are arranged on the inner wall of the shell and are uniformly distributed around the axis of the shaftless fan blade in the circumferential direction.

Further, there is the ring shape mounting panel on the inner wall of shell, the upper and lower both sides of shaftless flabellum all are provided with annular ball groove, the unit of breathing in still includes:

the support ring is fixedly connected to the support ring on the shell, the support ring and the mounting plate are both provided with ball grooves, and two sides of the shaftless fan blade are rotatably connected with the mounting plate and the support ring through balls.

Further, the pulverization unit includes:

the crushing shaft is rotatably connected in the inner shell and is connected with a power motor so as to drive the crushing cutter to rotate;

a crushing knife fixedly connected to the crushing shaft;

and the screen is fixedly connected to the inner shell and is positioned at the bottom of the crushing knife to screen the crushed cereal raw materials.

Further, the screen cloth is the hemisphere structure, smash the sword and include:

the fixed shaft sleeve is fixedly connected to the crushing shaft;

the scrapers are arranged around the fixed shaft sleeve and are in a circular arc shape so as to be attached to the inner wall of the screen mesh; and

and the blades are connected between the scraping plate and the fixed shaft sleeve.

Further, the pulverizer further includes:

a shaft stabilizing assembly for stabilizing rotation of the pulverizing shaft.

Further, the shaft stabilizing assembly includes:

the stabilizing shaft sleeve is sleeved outside the crushing shaft, and a stabilizing gear is arranged between the stabilizing shaft sleeve and the crushing shaft;

and the stabilizing rods are connected between the stabilizing shaft sleeves and the inner shell.

Further, the filter unit includes:

the filter screen that surrounds in the inner shell outside, the filter screen is the annular chamber, be provided with the opening on the inner wall of filter screen in order to communicate the air inlet.

Further, the filter unit further includes:

and the vibration component is used for driving the filter screen to vibrate up and down.

Further, the vibration assembly includes:

a center wheel fixedly connected to the crushing shaft;

the vibration gear ring is arranged on the outer side of the central wheel, and a wavy and annular vibration groove is formed in the outer part of the vibration gear ring; and

the planet gear is positioned between the central wheel and the vibration gear ring, wherein the central wheel, the vibration gear ring and the planet gear form a speed reduction gear train;

the vibrating ring is fixedly connected to a plurality of vibrating rods on the inner wall of the filter screen, and the end portions of the vibrating rods are connected to the vibrating groove in a sliding mode and used for driving the filter screen to vibrate up and down when the vibrating ring gear rotates.

In conclusion, compared with the prior art, the invention has the following beneficial effects:

according to the grain raw material pulverizer disclosed by the embodiment of the invention, the air suction unit and the filtering unit are arranged, so that an inward air flow is generated at the feed inlet of the pulverizer, and dust or dust generated when grain raw materials are put in and crushed is squeezed into the filtering unit, so that the dust is prevented from escaping, and the working environment is purified.

Drawings

Fig. 1 is a schematic structural diagram of a grain raw material pulverizer disclosed in an embodiment of the present invention.

Fig. 2 is a partially enlarged view of fig. 1 at I.

Fig. 3 is a partial enlarged view of fig. 1 at II.

Fig. 4 is a partial enlarged view of fig. 1 at III.

FIG. 5 is a schematic view of a non-axial fan blade of a grain material pulverizer disclosed in an embodiment of the present invention.

FIG. 6 is a schematic view of a crushing blade of the grain material crusher according to the embodiment of the present invention.

Fig. 7 is a schematic structural view of a vibrating ring gear in a grain raw material pulverizer disclosed in an embodiment of the present invention.

Reference numerals:

100. a housing assembly; 110. a housing; 111. an air outlet pipe; 112. an upper cover; 120. an inner shell; 121. a feed inlet; 122. a discharge port; 123. an air inlet; 130. supporting legs;

200. a power motor;

300. a pulverization unit; 310. a screen mesh; 320. a crushing knife; 321. fixing the shaft sleeve; 322. a blade; 323. a squeegee; 330. a crushing shaft;

400. an air suction unit; 410. shaftless fan blades; 411. a fan blade; 412. a magnetic block groove; 420. a magnetic block; 430. a coil; 440. a support ring;

500. a filtration unit; 510. a filter screen; 520. a vibrating assembly; 521. a center wheel; 522. vibrating the gear ring; 523. a planet wheel; 524. a vibrating rod; 525. a bottom support; 526. a top support; 527. a first fixing lever; 528. a vibration groove;

600. a shaft stabilization assembly; 610. stabilizing the shaft sleeve; 620. a stabilizing gear; 630. a stabilizer bar.

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 embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.

As shown in fig. 1, an embodiment of the present invention provides a cereal raw material pulverizer, which includes an outer casing 100, a power motor 200, a pulverizing unit 300, an air suction unit 400 and a filtering unit 500, wherein the outer casing 100 includes an outer casing 110 and an inner casing 120, the outer casing 110 is sleeved outside the inner casing 120, a gap exists between the outer casing 110 and the inner casing 120, an air inlet 123 is provided on an inner wall of the inner casing 120 to communicate between the inside of the inner casing 120 and the outer casing 110 and the inner casing 120, the air suction unit 400 is provided in the outer casing 110 to draw air at a feed inlet 121 located in the inner casing 120 and on the inner casing 120, and the filtering unit 500 is provided in the outer casing 110 and at the position of the air inlet 123 to filter dust; the pulverizing unit 300 is positioned inside the inner casing 120 to pulverize the grain material introduced into the inner casing 120; the power motor 200 is used for driving the crushing unit 300 to rotate so as to crush the grain raw materials;

in this embodiment, before the raw material is poured, the air suction unit 400 located in the outer shell 100 is opened, the air suction unit 400 sucks the air located in the outer shell 110 and the inner shell 120, so that a negative pressure is generated between the outer shell 110 and the inner shell 120, the air located in the inner shell 120 enters between the outer shell 110 and the inner shell 120, the outside air enters between the outer shell 110 and the inner shell 120 through the feed port 121 and the air inlet 123, so that an air flow flowing to the inside of the outer shell 100 is generated at the feed port 121, when the grain raw material is poured, the dust generated by the grain raw material enters between the outer shell 110 and the inner shell 120 along with the flow of the air, and after being filtered by the filter unit 500, is trapped at the filter unit 500, and is discharged to the outside through the air suction unit 400 after being filtered by the control of the filter unit 500, so that the generation of the dust is reduced when the grain raw material is poured;

when the crushing unit 300 is operated, the crushing unit 300 crushes the grain raw material in the inner casing 120, and dust generated when crushing the grain raw material enters the filtering unit 500 along with the air flow and is trapped at the filtering unit 500, thereby preventing the dust generated when crushing the grain raw material from escaping to the external environment;

as a preferred embodiment in this embodiment, the outer shell 110 and the inner shell 120 are both of a cylindrical structure with openings at both ends, a bottom sealing plate is arranged on the air outlet pipe 111, the bottom sealing plate is fixedly connected with the bottom opening of the outer shell 110 through a bolt, an upper cover 112 is arranged at the upper opening of the outer shell 110, the upper cover 112 is detachably connected to the upper opening of the outer shell 110 through a bolt or a buckle, wherein the outer shell 110 is further fixedly connected with a supporting leg 130 to support the outer shell assembly 100, the top sealing plate and the upper cover 112 are both sleeved on the outer side of the inner shell 120, and the upper cover 112 and the bottom sealing plate are both connected with the inner shell 120 through sealing rings in a sealing manner;

in some examples, the support feet 130 are fixedly attached to the bottom of the housing 110 by bolts;

an inclined baffle is arranged at the bottom of the inner shell 120, a discharge hole 122 is formed in the bottom of the inner shell 120, the discharge hole 122 is located at the lowest end of the baffle, and the crushed cereal raw materials fall to the baffle and slide from the discharge hole 122 under the action of gravity;

feed inlet 121 is trumpet-shaped structure, feed inlet 121 fixed connection be in the opening part at inner shell 120 top, feed inlet 121 through bolt fixed connection to on the inner shell 120, when processing fodder, cereal raw materials pass through feed inlet 121 and get into in the inner shell 120.

In this embodiment, the power motor 200 is located at the bottom of the housing assembly 100, the power motor 200 is connected to the crushing unit 300 through a coupling to drive the crushing unit 300 to crush the grain material, the power motor 200 is a conventional brushless motor, and the structure thereof is not described herein again.

As a preferred embodiment in this embodiment, as shown in fig. 1, the crushing unit 300 includes a crushing shaft 330 rotatably connected to the inside of the inner casing 120, a crushing blade 320 fixedly connected to the crushing shaft 330, and a screen 310 fixedly connected to the inside of the inner casing 120, the crushing shaft 330 is connected to a power motor 200 to drive the crushing blade 320 to rotate, the screen 310 is located at the bottom of the crushing blade 320 to screen crushed cereal raw materials, wherein the screen 310 is sleeved on the crushing shaft 330;

preferably, in this embodiment, the screen 310 has a hemispherical structure, the screen 310 is fixedly connected to the inner wall of the inner casing 120 by screws, as shown in fig. 6, the crushing cutter 320 includes a fixed bushing 321 fixedly connected to the crushing shaft 330 and a plurality of blades 323 arranged around the fixed bushing 321, a plurality of blades 322 are further connected between the blades 323 and the fixed bushing 321, the blades 323 are in a circular arc shape to fit the inner wall of the screen 310, two ends of the blades 322 are respectively connected to the fixed bushing 321 and the blades 323, each blade 323 is provided with a plurality of blades 322, for example, in this embodiment, three blades 323 are provided, the blades 323 are uniformly distributed around the axis of the fixed bushing 321 in the circumferential direction, each blade 323 is provided with eight blades 322, and each blade 322 is arranged at equal intervals;

when grain raw materials are added, the uncrushed grain raw materials fall onto the screen 310, after the power motor 200 is started, the power motor 200 drives the crushing shaft 330 to rotate, the crushing shaft 330 drives the crushing cutter 320 to rotate, when the crushing cutter 320 rotates, the blades 322 crush the grain raw materials, the grain raw materials meeting the requirement of the granularity fall onto the discharge hole 122 from the screen 310, the grain raw materials which do not meet the requirement are driven by the scraper 323 to be ejected downwards into the air, and the blades 322 crush the grain raw materials until the requirement of the granularity is met;

in this embodiment, the structure of the crushing unit 300 can improve the crushing efficiency and the crushing quality, prevent the generation of larger particles, and enable the crushed cereal raw materials to meet the particle size requirement.

As a preferred implementation manner in this embodiment, as shown in fig. 1, fig. 2 and fig. 5, the air suction unit 400 includes a shaftless fan blade 410, a plurality of magnetic blocks 420 and a plurality of coils 430, the shaftless fan blade 410 is of an annular structure, a plurality of fan blades 411 are disposed on an inner wall of the shaftless fan blade 410 to drive air to flow, the shaftless fan blade 410 is rotatably connected into the housing 110, the magnetic blocks 420 are disposed on an outer wall of the shaftless fan blade 410 and are uniformly distributed around an axis of the shaftless fan blade 410 in a circumferential direction, and the coils 430 are disposed on an inner wall of the housing 110 and are uniformly distributed around the axis of the shaftless fan blade 410 in the circumferential direction;

in this embodiment, the coil 430 is used as a stator coil to be connected to an external power source, the magnetic block 420 is used as a rotor to drive the shaftless fan blade 410 to rotate, when the air suction unit 400 is started, the coil 430 is energized to generate a magnetic field to drive the magnetic block 420 to rotate, so as to drive the shaftless fan blade 410 to rotate, and when the shaftless fan blade 410 rotates, the fan blade 411 drives air to flow, so that the air above the air suction unit 400 flows to the lower side of the air suction unit 400 and flows out from the air outlet pipe 111;

as shown in fig. 5, a magnet groove 412 is formed on an outer wall of the shaftless fan blade 410, and the magnet 420 is fixedly connected to the magnet groove 412 by gluing;

preferably, as shown in fig. 1, an annular mounting plate is disposed on an inner wall of the outer shell 110, annular ball grooves are disposed on upper and lower sides of the shaftless fan blade 410, the air suction unit 400 further includes a support ring 440 fixedly connected to the outer shell 110, the support ring 440 is fixedly connected to the outer shell 110 by screws, the support ring 440 and the mounting plate are both provided with ball grooves, two sides of the shaftless fan blade 410 are rotatably connected to the mounting plate and the support ring 440 by balls, and the balls not only limit the shaftless fan blade 410, but also reduce friction of the shaftless fan blade 410;

the fan blade 411 is fixedly connected to the shaftless fan blade 410 by welding, and the coil 430 is fixedly connected to the inner wall of the housing 110 by gluing.

As a preferred embodiment in this embodiment, as shown in fig. 1, the filter unit 500 includes a filter screen 510 surrounding the outer side of the inner casing 120, the filter screen 510 is an annular chamber, an opening is provided on an inner wall of the filter screen 510, the opening on the filter screen 510 is provided at the air inlet 123, air enters the filter screen 510 through the air inlet 123, and dust contained in the air is trapped in the filter screen 510, thereby playing a role of purifying the air;

in this embodiment, the filter screen 510 includes a frame and a filter bag disposed outside the frame, and the filter bag is made of a material in the prior art, such as a PE filter bag;

as a preferred embodiment in this embodiment, as shown in fig. 1 and fig. 3, the filter unit 500 further includes a vibration component 520 for driving the filter screen 510 to vibrate up and down to shake off the dust and dust adsorbed on the filter screen 510;

preferably, as shown in fig. 1 and 3, the vibration assembly 520 includes a central wheel 521 fixedly connected to the pulverizing shaft 330, a vibration ring gear 522 disposed outside the central wheel 521, and a planetary gear 523 disposed between the central wheel 521 and the vibration ring gear 522, the central wheel 521, the vibration ring gear 522, and the planetary gear 523 form a speed reduction gear train, a wavy and annular vibration groove 528 is disposed outside the vibration ring gear 522, a plurality of vibration rods 524 are also fixedly connected to the inner wall of the filter screen 510 to connect the vibration groove 528, the end portions of the vibration rods 524 are slidably connected to the vibration groove 528, and when the vibration ring gear 522 rotates, the vibration groove 528 drives the filter screen 510 to vibrate up and down through the vibration rods 524;

preferably, as shown in fig. 3, the central gear 521 is a straight-tooth gear, the central gear 521 is fixedly connected to the pulverizing shaft 330 by a key shaft connection so as to rotate along with the pulverizing shaft 330, the filter unit 500 further includes a bottom support 525 and a top support 526 which are fixedly connected to the inner wall of the inner casing 120, the bottom support 525 and the top support 526 are both ring-shaped structures, the bottom support 525 and the top support 526 are fixedly connected to the inner wall of the inner casing 120 by a plurality of first fixing rods 527, one end of each first fixing rod 527 is fixedly connected to the inner wall of the inner casing 120 by welding or bolts, and one end of each first fixing rod 527, which is far away from the inner casing 120, is fixedly connected to the bottom support 525 and the top support 526;

the vibrating gear ring 522 is rotatably connected between the bottom support 525 and the top support 526, the planetary gear 523 is rotatably connected to the bottom support 525 through a gear shaft, and when the central gear 521 rotates, the central gear 521 drives the vibrating gear ring 522 to rotate through the planetary gear 523;

as shown in fig. 7, the vibration groove 528 is arranged on the outer wall of the vibration ring gear 522, the inner wall of the vibration ring gear 522 is provided with a straight tooth structure, the central gear 521 is meshed with the planet gear 523, and the planet gear 523 is meshed with the vibration ring gear 522;

preferably, the bottom support 525 and the top support 526 are provided with annular ball grooves, the upper side and the lower side of the vibration gear ring 522 are provided with annular ball grooves, and the vibration gear ring 522 is connected with the bottom support 525 and the top support 526 through balls;

the vibrating rod 524 penetrates through the air inlet 123, the air inlet 123 is a kidney-shaped hole, and the air inlet 123 is provided with a plurality of holes.

As a preferred embodiment in this embodiment, as shown in fig. 1 and 4, the pulverizer further includes a shaft stabilizing assembly 600 for stabilizing the rotation of the pulverizing shaft 330;

in this embodiment, the shaft stabilizing assembly 600 includes a stabilizing shaft sleeve 610 sleeved outside the crushing shaft 330, a stabilizing gear 620 is disposed between the stabilizing shaft sleeve 610 and the crushing shaft 330, the stabilizing shaft sleeve 610 is fixedly connected to the inner wall of the inner housing 120 through a plurality of stabilizing bars 630, and the stabilizing bars 630 are fixedly connected to the stabilizing shaft sleeve 610 and the inner housing 120 through bolts or welding.

It should be noted that, in the present invention, the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship indicated on the drawings, which is merely for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various 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.

Claims (10)

1. The utility model provides a cereal raw materials rubbing crusher, rubbing crusher includes shell subassembly, power motor and crushing unit, a serial communication port, shell subassembly includes shell and inner shell, the shell cover is established in the inner shell outside, and has the space between shell and the inner shell, be provided with the air inlet on the inner wall of inner shell with the intercommunication between the inside of inner shell and the inner shell, rubbing crusher still includes:

the air suction unit is positioned between the outer shell and the inner shell and used for extracting air of the outer shell so as to extract air at a feed port in the inner shell and on the inner shell;

and the filtering unit is arranged in the shell and is positioned at the position of the air inlet.

2. The cereal material pulverizer of claim 1, wherein the air suction unit comprises:

the shaftless fan blades are rotatably connected into the shell and are of annular structures, and a plurality of fan blades are arranged on the inner walls of the shaftless fan blades to drive air to flow;

the magnetic blocks are arranged on the outer wall of the shaftless fan blade and are uniformly distributed around the axis of the shaftless fan blade in the circumferential direction; and

the coils are arranged on the inner wall of the shell and are uniformly distributed around the axis of the shaftless fan blade in the circumferential direction.

3. The grain material pulverizer as claimed in claim 2, wherein the inner wall of the housing has a circular ring-shaped mounting plate, the upper and lower sides of the shaftless fan blade are provided with circular ball grooves, and the air suction unit further comprises:

the support ring is fixedly connected to the support ring on the shell, the support ring and the mounting plate are both provided with ball grooves, and two sides of the shaftless fan blade are rotatably connected with the mounting plate and the support ring through balls.

4. The cereal material mill of any one of claims 1 to 3, wherein the milling unit comprises:

the crushing shaft is rotatably connected in the inner shell and is connected with a power motor so as to drive the crushing cutter to rotate;

a crushing knife fixedly connected to the crushing shaft;

and the screen is fixedly connected to the inner shell and is positioned at the bottom of the crushing knife so as to screen the crushed grain raw materials.

5. The cereal material pulverizer of claim 4, wherein the screen is of hemispherical configuration, and the pulverizing knife comprises:

the fixed shaft sleeve is fixedly connected to the crushing shaft;

the scrapers are arranged around the fixed shaft sleeve and are in an arc shape so as to be attached to the inner wall of the screen mesh; and

and the blades are connected between the scraping plate and the fixed shaft sleeve.

6. The cereal material pulverizer of claim 4, wherein the pulverizer further comprises:

a shaft stabilizing assembly for stabilizing the rotation of the pulverizing shaft.

7. The cereal material pulverizer of claim 6, wherein the shaft stabilization assembly comprises:

the stabilizing shaft sleeve is sleeved outside the crushing shaft, and a stabilizing gear is arranged between the stabilizing shaft sleeve and the crushing shaft;

and the stabilizing rods are connected between the stabilizing shaft sleeves and the inner shell.

8. The cereal material pulverizer of claim 4, wherein the filter unit comprises:

the filter screen that surrounds in the inner shell outside, the filter screen is the annular chamber, be provided with the opening on the inner wall of filter screen in order to communicate the air inlet.

9. The cereal material pulverizer of claim 8, wherein the filter unit further comprises:

and the vibration component is used for driving the filter screen to vibrate up and down.

10. The cereal material pulverizer of claim 9, wherein the vibration assembly comprises:

a central wheel fixedly connected to the crushing shaft;

the vibration gear ring is arranged on the outer side of the central wheel, and a wavy and annular vibration groove is formed in the outer part of the vibration gear ring; and

the planet gear is positioned between the central wheel and the vibration gear ring, wherein the central wheel, the vibration gear ring and the planet gear form a speed reduction gear train;

the vibrating ring is fixedly connected to a plurality of vibrating rods on the inner wall of the filter screen, and the end portions of the vibrating rods are connected to the vibrating groove in a sliding mode and used for driving the filter screen to vibrate up and down when the vibrating ring gear rotates.

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