Vibrating screen and screen plate thereof

Abstract

The invention relates to the field of vibrating screens, and particularly discloses a vibrating screen and a screen plate thereof.The vibrating screen comprises a frame body, the frame body comprises two symmetrically-arranged side plates, two connecting plates are fixedly arranged between the two side plates, the two connecting plates are arranged at the two ends of the side plates, a screen is detachably connected between the two connecting plates, and the screen is formed by splicing a plurality of steel wire meshes; the steel wire mesh is in a wave shape in the length direction of the steel wire mesh, frames are fixedly arranged on the four edges of the steel wire mesh, the motor drives the vibrator to rotate so that the screen plate can vibrate, the moving stroke of materials on the wave-shaped screen mesh is prolonged through the wave-shaped screen mesh, and therefore the contact time of the materials and the screen mesh is prolonged, the screening duration of the materials is prolonged, and the screening effect of the materials is improved. And meanwhile, the screen mesh is detachably connected between the connecting plates, so that when the screen mesh is partially damaged, the screen mesh can be maintained by replacing a single steel wire mesh.

Description

Technical Field

[0001] The invention relates to the field of vibrating screens, in particular to a vibrating screen and a screen plate thereof. Background Art

[0002] The vibrating screen works by using the reciprocating vibration generated by the vibrator. The screen of the traditional vibrating screen is mostly flat and tilted to the ground. Therefore, in the process of screening logistics, the distance the material moves on the screen is the length of the screen. If the material stays on the screen for a short time, some of the material that is not screened in time will fall out from the end of the screen, resulting in unsatisfactory screening effect. Summary of the invention

[0003] The object of the present invention is to provide a vibrating screen and a screen plate thereof, so as to overcome the above-mentioned defects in the prior art.

[0004] A screen plate according to the present invention includes a frame body, which includes two symmetrically arranged side plates, two connecting plates fixedly arranged between the two side plates, the two connecting plates are arranged at both ends of the side plates, a screen is detachably connected between the two connecting plates, the screen includes a plurality of steel meshes spliced ​​together, the steel meshes are wavy along their length, and frame are fixedly arranged on the four edges of the steel meshes.

[0005] Through the above technical solution, the wavy screen prolongs the movement distance of the material on it, thereby increasing the contact time between the material and the screen, thereby increasing the screening time of the material and improving the screening effect of the material. At the same time, the screen can be detachably connected between the connecting plates, so that when the screen is partially damaged, the screen can be repaired by replacing a single wire mesh.

[0006] Preferably, a plurality of support rods equidistantly distributed along the width direction of the frame are arranged on the lower side of the screen, the support rods are wavy in shape, the two ends of the support rods are respectively fixed on the lower end surfaces of the two connecting plates, and the upper end surfaces of the support rods abut against the lower end surface of the frame.

[0007] Through the above technical solution, the setting of the support rods can effectively increase the bending strength of the wire mesh, thereby ensuring that the wire mesh remains overall straight during the screening process.

[0008] Preferably, a fixing plate is provided on the lower side of the connecting plate, and a plurality of bolts arranged along the width direction of the frame are fixedly provided on the lower end surface of the connecting plate, and a plurality of through holes penetrating along the thickness direction are opened in the fixing plate. The bolts pass through the through holes in the fixing plate, and the lower ends of the bolts are threadedly connected with nuts abutting against the lower end surface of the fixing plate. A plurality of grooves are opened on the upper end surface of the fixing plate, and the two ends of the support rod are respectively embedded in the grooves of the two fixing plates, and the ends of the support rods are fixed to the connecting plate by fixing the fixing plate to the lower side of the connecting plate.

[0009] Through the above technical solution, the two ends of the support rod are firmly connected to the connecting plate, and the disassembly of the two ends of the support rod and the connecting plate is also convenient.

[0010] Preferably, the screen is embedded between two connecting plates, and the upper end surface of the connecting plate is rotatably connected to two limit rods, the limit rod consists of a transverse part and a vertical part and is in a "T" shape, and a pressure plate is provided on the connecting plate, and the pressure plate cooperates with the end of the support rod to clamp the end of the screen, and through grooves are provided at both ends of the pressure plate, and the vertical part of the limit rod passes through the through groove, and the transverse part of the limit rod can pass through the through groove when it coincides with the through groove, and the transverse part of the limit rod abuts against the upper end surface of the pressure plate when it is perpendicular to the through groove.

[0011] The above technical solution facilitates the disassembly and assembly between the pressing plate and the connecting plate, thereby facilitating the disassembly and assembly between the screen and the connecting plate.

[0012] Preferably, a plurality of reinforcing rods distributed at the wave crest positions of the support rods are fixed between the two side plates, and the reinforcing rods abut against the lower side surfaces of the support rods at the wave crest positions.

[0013] Through the above technical solution, the provision of the reinforcing rod can effectively increase the bending strength of the support rod.

[0014] Preferably, a connecting groove which is sunken obliquely downward is provided on the upper side surface at the crest position of the supporting rod, and a connecting pin embedded in the connecting groove is fixed on the lower side surface at the crest position of the frame along the length direction of the screen.

[0015] Through the above technical solution, the connecting pin embedded in the connecting groove may effectively increase the connection strength between the wire mesh and the support rod, thereby preventing the wire mesh from being separated from the support rod during the screening process.

[0016] The present invention also provides a vibrating screen, comprising a base, a screen box, four brackets and a motor, wherein two screen plates described in any one of the above claims are fixed in the screen box, and the two screen plates are equidistantly distributed up and down, the screen box is obliquely arranged on the base, the four brackets are fixed on the base, a buffer spring is fixed between the screen box and the four brackets, a vibrator is fixed in the screen box, a motor frame is fixed on the side of the base, a motor is fixed on the upper end of the motor frame, and the motor and the vibrator are connected by a belt and a pulley.

[0017] Through the above technical solution, the motor drives the vibrator to rotate, causing the screen box to vibrate, thereby driving the screen plate to vibrate, thereby realizing the screening process.

[0018] The beneficial effects of the present invention are: the motor drives the vibrator to rotate, causing the screen plate to vibrate, and the wavy screen prolongs the moving distance of the material thereon, thereby increasing the contact time between the material and the screen, thereby increasing the screening time of the material and improving the screening effect of the material. At the same time, the screen can be detachably connected between the connecting plates, so that when the screen is partially damaged, the screen can be repaired by replacing a single wire mesh. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a vibrating screen in the present invention; Figure 2 It is a structural schematic diagram of the sieve plate in the present invention; Figure 3 The present invention Figure 2 The enlarged schematic diagram at A in the middle; Figure 4 is a bottom view schematic diagram of the sieve plate in the present invention; Figure 5 The present invention Figure 4 The enlarged schematic diagram of point B in the middle; Figure 6 is an exploded view of the sieve plate in the present invention; Figure 7 The present invention Figure 6 The enlarged schematic diagram at C in the middle; Figure 8 The present invention Figure 6 The enlarged schematic diagram at D in the middle; Fig. 9 It is a structural schematic diagram of the fixing plate in the present invention.

[0020] In the figure: 10. Base; 11. Bracket; 12. Motor frame bolt; 13. Buffer spring; 14. Motor; 15. Vibrator; 16. Screen box; 20. Side panel; 21. Connecting plate; 211. Bolt; 30. Wire mesh; 301. Frame; 302. Connecting pin; 40. Pressing plate; 401. Through slot; 41. Limiting rod; 50. Fixing plate; 501. Groove; 51. Nut; 60. Support rod; 601. Connecting slot; 70. Reinforcing rod. DETAILED DESCRIPTION

[0021] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of simplifying the description of the present invention, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0022] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is specifically described in conjunction with the embodiments below. It should be understood that the following text is only used to describe one or several specific embodiments of the present invention, and does not strictly limit the scope of protection of the specific claims of the present invention. As used herein, the terms up and down and left and right are not limited to their strict geometric definitions, but include tolerances for reasonable and inconsistent machining or human errors. The specific features of the vibrating screen and its screen plate are described in detail below: An embodiment of the present invention: Reference Figure 1-Figure 9 The present invention provides a screen plate, including a frame, the frame including two symmetrically arranged side panels 20, two connecting plates 21 fixedly arranged between the two side panels 20, the two connecting plates 21 are arranged at both ends of the side panels 20, a screen is detachably connected between the two connecting plates 21, the screen includes a plurality of steel meshes 30 spliced ​​together, the steel meshes 30 are wavy along the length direction thereof, and frame frames 301 are fixedly arranged on the four edges of the steel meshes 30.

[0023] Reference Figure 4-6 A plurality of support rods 60 are arranged on the lower side of the screen and are evenly distributed along the width direction of the frame. The support rods 60 are wavy in shape. Both ends of the support rods 60 are respectively fixed on the lower end surfaces of the two connecting plates 21 , and the upper end surface of the support rods 60 abuts against the lower end surface of the frame 301 .

[0024] Reference Figure 4-6 , Fig. 9 A fixing plate 50 is provided on the lower side of the connecting plate 21, and a plurality of bolts 211 arranged along the width direction of the frame are fixedly provided on the lower end surface of the connecting plate 21. A plurality of through holes penetrating along the thickness direction are provided in the fixing plate 50. The bolts 211 pass through the through holes on the fixing plate 50, and the lower ends of the bolts 211 are threadedly connected with nuts 51 abutting against the lower end surface of the fixing plate 50. A plurality of grooves 501 are provided on the upper end surface of the fixing plate 50, and the two ends of the support rod 60 are respectively embedded in the grooves 501 of the two fixing plates 50, and the ends of the support rod 60 are fixed to the connecting plate 21 by fixing the fixing plate 50 to the lower side of the connecting plate 21.

[0025] Reference Figure 4 , Figure 6 The screen is embedded between the two connecting plates 21. The upper end surface of the connecting plate 21 is rotatably connected to two limit rods 41. The limit rod 41 consists of a horizontal part and a vertical part and is in a "T" shape. A pressing plate 40 is provided on the connecting plate 21. The pressing plate 40 cooperates with the end of the support rod 60 to clamp the end of the screen. Through grooves 401 are opened at both ends of the pressing plate 40. The vertical part of the limit rod 41 passes through the through groove 401. When the horizontal part of the limit rod 41 coincides with the through groove 401, it can pass through the through groove 401. When the horizontal part of the limit rod 41 is perpendicular to the through groove 401, it abuts against the upper end surface of the pressing plate 40.

[0026] Reference Figure 5 , Figure 6 A plurality of reinforcing rods 70 distributed at the wave crest positions of the support rods 60 are fixed between the two side plates 20 , and the reinforcing rods 70 abut against the lower side surfaces of the support rods 60 at the wave crest positions.

[0027] Reference Figure 7 , Figure 8 The upper side surface of the support rod 60 at the wave crest position is provided with a connection groove 601 that is recessed obliquely downward, and the lower side surface of the frame 301 at the wave crest position along the length direction of the screen is fixed with a connection pin 302 embedded in the connection groove 601.

[0028] Reference Figure 1 The present invention also provides a vibrating screen, including a base 10, a screen box 16, four brackets 11 and a motor 14. Two screen plates according to any one of claims 1 to 6 are fixed in the screen box 16, and the two screen plates are equidistantly distributed up and down. The screen box 16 is tilted on the base 10, and the four brackets 11 are fixed on the base 10. A buffer spring 13 is fixed between the screen box 16 and the four brackets 11. A vibrator 15 is fixed in the screen box 16. A motor frame 12 is fixed on the side of the base 10, and a motor 14 is fixed on the upper end of the motor frame 12. The motor 14 and the vibrator 15 are connected by a belt and a pulley.

[0029] When the present invention is in use, the motor 14 is started, and the vibrator 15 is rotated through the belt and the pulley, which causes the screen box 16 to vibrate, and then drives the screen plate to vibrate. The material is poured onto the wire mesh 30 along with the conveying device, and the wire mesh 30 vibrates with the vibration of the screen plate, thereby screening the material. The wavy wire mesh 30 extends the moving stroke of the material on it, so that the material moves to form a length greater than the screen box 16, thereby increasing the screening time of the material on the wire mesh 30 and improving the screening effect of the material.

[0030] If a wire mesh 30 is damaged during screening, the limit rod 41 is rotated to be aligned with the through groove 401. At this time, the pressure plate 40 is separated upward from the connecting plate 21, and the damaged wire mesh 30 is removed from the connecting plate 21. After replacing the new wire mesh 30, the pressure plate 40 is installed back on the connecting plate 21 so that the pressure plate 40 presses and fixes the wire mesh 30 on the connecting plate 21.

[0031] It will be clear to those skilled in the art that various modifications may be made to the above embodiments without departing from the overall spirit and concept of the present invention. All of them fall within the protection scope of the present invention. The protection scheme of the present invention shall be subject to the claims attached to the present invention.

Claims

1. A screen plate, comprising a frame, characterized in that: The frame comprises two symmetrically arranged side panels (20), two connecting plates (21) are fixedly arranged between the two side panels (20), the two connecting plates (21) are arranged at both ends of the side panels (20), a screen is detachably connected between the two connecting plates (21), the screen comprises a plurality of steel meshes (30) spliced ​​together, the steel meshes (30) are wavy along their length direction, and four edges of the steel meshes (30) are fixedly provided with frames (301).

2. A sieve plate according to claim 1, characterized in that: A plurality of support rods (60) are arranged at equal intervals along the width direction of the frame at the lower side of the screen, the support rods (60) are wavy in shape, the two ends of the support rods (60) are respectively fixed to the lower end surfaces of the two connecting plates (21), and the upper end surfaces of the support rods (60) are in contact with the lower end surface of the frame (301).

3. A sieve plate according to claim 2, characterized in that: A fixing plate (50) is arranged at the lower side of the connecting plate (21); a plurality of bolts (211) arranged along the width direction of the frame body are fixedly arranged on the lower end surface of the connecting plate (21); a plurality of through holes penetrating along the thickness direction of the fixing plate (50) are provided in the fixing plate (50); the bolts (211) pass through the through holes on the fixing plate (50); the lower ends of the bolts (211) are threadedly connected with nuts (51) abutting against the lower end surface of the fixing plate (50); a plurality of grooves (501) are provided on the upper end surface of the fixing plate (50); the two ends of the support rod (60) are respectively embedded in the grooves (501) of the two fixing plates (50); and the fixing plate (50) is fixed to the lower side of the connecting plate (21) to achieve the fixing of the ends of the support rod (60) to the connecting plate (21).

4. A sieve plate according to claim 2, characterized in that: The screen is embedded between two connecting plates (21). Two limiting rods (41) are rotatably connected to the upper end surface of the connecting plate (21). The limiting rod (41) consists of a transverse portion and a vertical portion and is in a "T" shape. A pressing plate (40) is provided on the connecting plate (21). The pressing plate (40) cooperates with the end of the supporting rod (60) to clamp the end of the screen. Through grooves (401) are provided at both ends of the pressing plate (40). The vertical portion of the limiting rod (41) passes through the through groove (401). When the transverse portion of the limiting rod (41) coincides with the through groove (401), the limiting rod (41) can pass through the through groove (401). When the transverse portion of the limiting rod (41) is perpendicular to the through groove (401), the limiting rod (41) abuts against the upper end surface of the pressing plate (40).

5. A sieve plate according to claim 2, characterized in that: A plurality of reinforcing rods (70) distributed at the wave crest positions of the support rods (60) are fixed between the two side plates (20), and the reinforcing rods (70) abut against the lower side surface of the support rods (60) at the wave crest positions.

6. A sieve plate according to claim 2, characterized in that: The upper side surface of the support rod (60) at the wave crest position is provided with a connection groove (601) that is recessed obliquely downward, and the lower side surface of the frame (301) at the wave crest position along the length direction of the screen is fixed with a connection pin (302) embedded in the connection groove (601).

7. A vibrating screen, comprising a base (10), a screen box (16), four brackets (11) and a motor (14), characterized in that: Two sieve plates according to any one of claims 1 to 6 are fixed in the sieve box (16), and the two sieve plates are equidistantly distributed up and down. The sieve box (16) is tiltedly arranged on the base (10), and the four brackets (11) are fixed on the base (10). A buffer spring (13) is fixed between the sieve box (16) and the four brackets (11). A vibrator (15) is fixed in the sieve box (16), and a motor frame (12) is fixed on the side of the base (10). A motor (14) is fixed on the upper end of the motor frame (12), and the motor (14) and the vibrator (15) are connected by a belt and a pulley.

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