CN217700082U

CN217700082U - Plane rotary screen

Info

Publication number: CN217700082U
Application number: CN202221785750.0U
Authority: CN
Inventors: 曹可佳
Original assignee: Yuanjiang Fengguling Agriculture Co ltd
Current assignee: Yuanjiang Fengguling Agriculture Co ltd
Priority date: 2022-07-11
Filing date: 2022-07-11
Publication date: 2022-11-01
Anticipated expiration: 2032-07-11

Abstract

The utility model discloses a plane rotary screen, wherein the top and one side of a rotary screen box body are provided with openings; a plurality of layers of baffle strips are respectively fixed at two ends of the inner side of the rotary screen box body from top to bottom, screening structures are detachably fixed on the baffle strips, each screening structure comprises a screening frame, and a screen is fixed at the bottom of each screening frame; the pores of the screen become smaller from top to bottom in sequence; a material baffle is fixed below the screening frame at the bottommost layer; four corners outside the box body of the rotary screen are respectively fixed with a connecting lug, the connecting lug is connected with a rotating shaft in a shaft coupling mode, the rotating shaft is fixed at the eccentric position of a transmission gear, the transmission gear is meshed with a power gear, and one of the power gears is connected with a rotary power device; a backflow drainage plate is arranged between the adjacent screening frames; the screening frame is gradually inclined downwards from right to left, the reflux drainage plate is gradually inclined downwards from right to left, and baffles are fixed on two sides of the reflux drainage plate; the discharge gate is installed to the left end of screening frame and striker plate, and the installation and the dismantlement of being convenient for can quick replacement screening structure as required, and sieve effectually.

Description

Plane rotary screen

Technical Field

The utility model relates to a rice processing field especially relates to a plane gyratory sieve.

Background

Plane rotary screen makes the screen cloth do rotary motion through eccentric wheel isotructure promptly to spread the material fast, thereby be convenient for the screening, and improve the equipment of screening efficiency.

However, the prior rotary screen has the following problems:

1. the screen is usually fixedly arranged, so that the screen is not convenient to replace quickly after being damaged or blocked by screen holes.

2. When setting up multilayer screening structure, because the material moves down gradually, can lead to the screen cloth screening distance of lower part to shorten to be difficult to fully sieve the material.

3. When adopting gyratory sieve screening rice, because the rice is the ellipsoid form, during consequently gyration, appear downwards rolling speed too fast easily, lead to transversely laying arrange not enough, the relatively poor problem of screening effect.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a plane gyratory sieve.

The purpose of the utility model is realized through the following technical scheme:

a plane rotary screen comprises a rotary screen box body; the top and one side of the rotary screen box body are provided with openings; a plurality of layers of baffle strips are respectively fixed at two ends of the inner side of the rotary screen box body from top to bottom, screening structures are detachably fixed on the baffle strips, each screening structure comprises a screening frame, and a screen is fixed at the bottom of each screening frame; the pores of the screen are sequentially reduced from top to bottom; a material baffle plate is fixed below the screening frame at the bottommost layer; four corners outside the box body of the rotary screen are respectively fixed with a connecting lug, the connecting lug is connected with a rotating shaft in a shaft coupling mode, the rotating shaft is fixed at the eccentric position of a transmission gear, the transmission gear is meshed with a power gear, and one of the power gears is connected with a rotary power device; a backflow drainage plate is arranged between the adjacent screening frames; the screening frame is gradually inclined downwards from right to left, the reflux drainage plate is gradually inclined downwards from right to left, and baffles are fixed on two sides of the reflux drainage plate; the left ends of the screening frame and the striker plate are provided with discharge ports.

In a further improvement, the power gear is connected to the supporting seat in a shaft mode, and a plurality of balls in contact with the lower end face of the power gear are installed at the top of the supporting seat.

In a further improvement, the rotary power device is a rotary motor.

In a further improvement, end lugs are fixed at two ends of the outer side of the screening frame, and the end lugs and the stop bars are detachably and fixedly connected through bolts.

The improved backflow drainage plate is characterized in that the right end of the backflow drainage plate is fixedly connected with the stop bar through a connecting rod.

In a further improvement, 1-2 arc-shaped convex strips are fixed on the top surface of the right side of the screen.

The further improvement is that the thickest part of the arc convex strip is 0.3-0.6mm.

The beneficial effects of the utility model reside in that:

1. the utility model discloses make the rice screening every layer all can flow back to the right-hand member, the downstream again to the effect of screening has been guaranteed.

2. Side opening to screening structure can dismantle the connection, the quick replacement of being convenient for.

3. Be provided with the arc sand grip for the rice receives the obstruction when rolling downwards, thereby is convenient for it vertically to be spread, thereby fully sieves.

Drawings

The present invention is further explained by using the attached drawings, but the content in the attached drawings does not constitute any limitation to the present invention.

Fig. 1 is a schematic side view of the present invention;

fig. 2 is a schematic top view of a screening structure.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and examples.

Example 1

The plane rotary screen as shown in fig. 1 comprises a rotary screen box body 1, a baffle bar 2, a screening structure 3, a screening frame 4, a screen 5, a material baffle 6, a connecting lug 7, a rotating shaft 8, a transmission gear 9, a power gear 10, a rotary power device 11, a backflow drainage plate 12, a baffle 13, a discharge hole 14, a supporting seat 15, balls 16, an end lug 17, a bolt 18, a connecting rod 19 and a blanking pipe 20.

Wherein the blanking pipe 20 is arranged right above the right end of the rotary screen box body 1 and used for blanking. The top and one side of the rotary screen box body 1 are provided with openings; a plurality of layers of baffle strips 2 are respectively fixed at two ends of the inner side of the rotary screen box body 1 from top to bottom, and a screening structure 3 is detachably fixed on the baffle strips 2. The pores of the screening structure 3 become smaller from top to bottom in sequence; a material baffle 6 is fixed below the screening frame 4 at the bottommost layer; four corners outside the rotary screen box body 1 are respectively fixed with a connecting lug 7, the connecting lugs 7 are connected with a rotating shaft 8 in a shaft coupling mode, the rotating shaft 8 is fixed at the eccentric position of a transmission gear 9, the transmission gear 9 is meshed with a power gear 10, and one power gear 10 is connected with a rotary power device 11; a backflow drainage plate 12 is arranged between the adjacent screening frames 4; the screening frame 4 is gradually inclined downwards from right to left, the reflux drainage plate 12 is gradually inclined downwards from right to left, and baffles 13 are fixed on two sides of the reflux drainage plate 12; a discharge hole 14 is arranged at the left ends of the screening frame 4 and the material baffle 6. The rotary power unit 11 is a rotary electric machine.

The using process comprises the following steps:

the rotating motor is started, the rotating motor drives the transmission gear 9 to rotate through the power gear 10, and the transmission gear 9 drives the rotating shaft 8 to rotate, so that the screening structure 3 periodically shakes. Then the rice to be screened flows out from the blanking pipe 20 and flows onto the screen 5 at the uppermost layer, the rice is spread along with the shaking of the screen 5 and rolls downwards, so that the rice with small grain size reaches the backflow drainage plate 12 at the lower part and is drained to the rightmost end of the screen 5 at the next layer for re-screening, and the rice to be screened flows from the rightmost end to the leftmost end every time, so that the screening is sufficient. The screened rice flows out from the discharge ports 14, respectively, and is collected. The collection mode is that the discharge port 14 is respectively connected with a flexible pipeline for diversion or adopts a conveyor belt for transmission and the like.

Wherein, the two ends of the outer side of the screening frame 4 are fixed with end lugs 17, and the bolt 18 can disassemble and fixedly connect the end lugs 17 with the baffle strips 2. Thus, when the corresponding screen is clogged or broken, the bolt 18 is unscrewed and then the screening structure 3 is drawn out. Removal and replacement is done without the need to remove the other screening arrangements 3.

Wherein, the power gear 10 is coupled on the supporting seat 15, and a plurality of balls 16 contacting with the lower end face of the power gear 10 are installed on the top of the supporting seat 15. This provides support for the power gear 10 against bending deflection of its shaft due to eccentric pressure.

The right end of the reflux drainage plate 12 is fixedly connected with the stop bar 2 through a connecting rod 19 so as to be fixed more stably.

In order to prevent the rice from spreading completely, i.e. to the lower side, 1-2 arc-shaped convex strips 20 are fixed on the top surface of the right side of the screen 5, thus forming a certain transverse barrier for the rice, and further fully spreading the rice in the longitudinal direction. In order to prevent the rice from going downwards, the thickest part of the arc convex strip 20 is 0.3-0.6mm.

It should be finally noted that the above embodiments are only used for illustrating the technical solutions of the present invention, not for limiting the protection scope of the present invention, and although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced equally without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A plane rotary screen comprises a rotary screen box body (1); the top and one side of the rotary screen box body (1) are provided with openings; the rotary screen is characterized in that a plurality of layers of baffle strips (2) are respectively fixed at two ends of the inner side of the rotary screen box body (1) from top to bottom, screening structures (3) are detachably fixed on the baffle strips (2), each screening structure (3) comprises a screening frame (4), and a screen (5) is fixed at the bottom of each screening frame (4); the pores of the screen (5) become smaller from top to bottom in sequence; a material baffle plate (6) is fixed below the screening frame (4) at the bottommost layer; four corners of the outer part of the rotary screen box body (1) are respectively fixed with a connecting lug (7), the connecting lugs (7) are connected with a rotating shaft (8) in a shaft mode, the rotating shaft (8) is fixed at the eccentric position of a transmission gear (9), the transmission gear (9) is meshed with a power gear (10), and one power gear (10) is connected with a rotary power device (11); a backflow drainage plate (12) is arranged between the adjacent screening frames (4); the screening frame (4) is gradually inclined downwards from right to left, the reflux drainage plate (12) is gradually inclined downwards from right to left, and baffles (13) are fixed on two sides of the reflux drainage plate (12); a discharge hole (14) is arranged at the left ends of the screening frame (4) and the striker plate (6).

2. The planar rotary screen according to claim 1, characterized in that the power gear (10) is coupled to the support base (15), and a plurality of balls (16) contacting with the lower end surface of the power gear (10) are mounted on the top of the support base (15).

3. Planar rotary screen according to claim 1, characterized in that the rotary power means (11) is a rotary motor.

4. The planar rotary screen as claimed in claim 1, characterized in that the screening frame (4) is fixed with end lugs (17) at its two outer ends, and the end lugs (17) are detachably and fixedly connected with the stop bars (2) by bolts (18).

5. The planar rotary screen according to claim 1, characterized in that the right end of the return flow guide plate (12) is fixedly connected with the stop bar (2) by a connecting rod (19).

6. The flat rotary screen according to any one of claims 1 to 5, wherein 1 to 2 arc-shaped ribs (20) are fixed to the top surface of the right side of the screen mesh (5).

7. The rotary flat screen according to claim 6, wherein the thickest part of the curved ribs (20) is 0.3-0.6mm.