Multi-stage screening device for biological feed

Abstract

The utility model provides a biological feed multi-stage screening device, belongs to the technical field of feed screening, and aims to solve the problems that a screen is easily blocked in the screening process of existing biological feed, and the material screening effect is greatly influenced. The first-stage vibrating screen is fixedly connected to the interior of the main body frame; the driving motor is fixedly connected to the top of the main body frame; the first transmission shaft is rotationally connected to the interior of the transmission box; the two anti-blocking assemblies are arranged below the first-stage vibrating screen and the second-stage vibrating screen correspondingly. And the replacing and disassembling assembly is arranged in front of the first-stage vibrating screen and the second-stage vibrating screen. Through the movement of the anti-blocking brush, the screen meshes of the screen meshes in the first-stage vibrating screen and the second-stage vibrating screen can be quickly and effectively cleaned, the situation that the screening efficiency is reduced due to the fact that the screen meshes are blocked by materials is avoided, and the screen meshes with different sizes of screen meshes are convenient and quick to replace.

Description

Technical Field

[0001] The utility model belongs to the technical field of feed screening, and more specifically, particularly relates to a multi-stage screening device for biological feed. Background Art

[0002] Multi-stage vibrating screens are usually used for screening materials in the process of biological feed processing. They can screen and grade biological feed raw materials, semi-finished products or finished products of different particle sizes to meet different production needs. Existing multi-stage vibrating screens are generally composed of a frame body, multiple vibrating screening plates and a material receiving piece at the bottom.

[0003] Existing application number: CN202320404286.4, the utility model discloses a screening device for biological feed, which relates to the field of biological feed production technology, including support legs, the upper end of the support legs is fixedly installed with a screening device body, and the front of the screening device body is fixedly installed with a control panel, the upper end of the screening device body is fixedly installed with a feed cone, and the left end of the screening device body is fixedly installed with a drive motor. The utility model can adjust the position of the push-pull plate according to the needs of the staff during the filtering process, and then the filter mesh and the through hole can be misaligned, and the push-pull plate can be pulled by the handle at the left end of the push-pull plate, and then the rotating rod can be rotated, and then the push-pull plate is loosened, and the tension of the spring element can be used to push the rotating rod against the left end of the screening device body, so that the limit can be performed, and the limit can be performed conveniently, and then the filtered biological feed is transported to the outside through the output port at the lower end through the inclined plate.

[0004] Based on the above, the particle sizes and composition materials of raw materials, semi-finished products or finished products of biological feed are different. Some critical material particles close to the mesh size of the screen and some materials with high moisture content and sticky substances such as mud and sand can easily block the screen during the screening process, which not only affects the screening efficiency of the material, but also takes time to clean up, greatly affecting the material screening effect. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a multi-stage screening device for biological feed to solve the problem that the raw materials, semi-finished products or finished products of existing biological feed have different particle sizes and component materials. Some critical material particles close to the mesh size of the screen and some materials with high moisture content and sticky substances such as mud and sand can easily block the screen during the screening process, which not only affects the screening efficiency of the material, but also takes time to clean up, greatly affecting the material screening effect.

[0006] The purpose and effect of the multi-stage screening device for biological feed in the utility model are achieved by the following specific technical means:

[0007] A biological feed multi-stage screening device comprises a main frame;

[0008] A primary vibrating screen, wherein the primary vibrating screen is fixedly connected to the inside of the main frame;

[0009] A secondary vibrating screen, wherein the secondary vibrating screen is fixedly connected to the inside of the main frame;

[0010] A material receiving piece, the material receiving piece is fixedly connected to the bottom of the main frame;

[0011] A driving motor, wherein the driving motor is fixedly connected to the top of the main frame;

[0012] A transmission box, which is fixedly connected to the front of the main frame;

[0013] A driving bevel gear, wherein the driving bevel gear is coaxially fixedly connected to the end of the rotating shaft of the driving motor;

[0014] a first transmission shaft, the first transmission shaft being rotatably connected inside the transmission box;

[0015] A driven bevel gear, the driven bevel gear is coaxially fixedly connected to the top of the first transmission shaft, and the driven bevel gear is meshed with the driving bevel gear;

[0016] Anti-blocking components, two groups of which are arranged under the primary vibrating screen and the secondary vibrating screen respectively;

[0017] A replacement and disassembly assembly is arranged in front of the primary vibrating screen and the secondary vibrating screen.

[0018] Furthermore, the anti-blocking component includes:

[0019] A transmission worm, the transmission worm is coaxially fixedly connected to the outside of the first transmission shaft;

[0020] A fixed guide rail, wherein two fixed guide rails are provided, and the two fixed guide rails are discretely fixedly connected inside the main frame;

[0021] A reciprocating screw, the reciprocating screw being rotatably connected to the inside of the fixed guide rail on the right side;

[0022] A transmission worm wheel is coaxially fixedly connected to the front end of the reciprocating screw, and the transmission worm wheel is meshed with the transmission worm.

[0023] Furthermore, the anti-blocking component also includes:

[0024] Slide blocks, wherein two slide blocks are provided, and the two slide blocks are respectively slidably connected inside two fixed guide rails, and the slide block on the right is threadedly connected to the reciprocating screw;

[0025] An anti-blocking brush is rotatably connected to the inner sides of the two sliding blocks.

[0026] Furthermore, the anti-blocking component also includes:

[0027] Transmission gear, wherein two transmission gears are provided, and the two transmission gears are coaxially fixedly connected to the left and right ends of the anti-blocking brush respectively;

[0028] The transmission rack is provided with two pieces, the two transmission racks are respectively fixedly connected inside two fixed guide rails, and the two transmission racks are respectively meshed with two transmission gears.

[0029] Furthermore, the replacement and disassembly components include:

[0030] A fixing box, wherein two fixing boxes are provided, and the two fixing boxes are respectively fixedly connected in front of the primary vibrating screen and the secondary vibrating screen;

[0031] A latch, wherein two latches are provided, and the two latches are slidably connected inside the two fixing boxes respectively;

[0032] The toggle plate is provided with two pieces, and the two toggle plates are respectively fixedly connected to the two latches.

[0033] Furthermore, the replacement and disassembly assembly also includes:

[0034] A return spring, wherein two return springs are provided, the front ends of the two return springs are respectively fixedly connected inside the two fixing boxes, and the rear ends of the two return springs are respectively fixedly connected in front of the two latches;

[0035] A plug-in block, wherein two plug-in blocks are provided, and the two plug-in blocks are respectively fixedly connected to the screens of the primary vibrating screen and the secondary vibrating screen.

[0036] Compared with the prior art, the utility model has the following beneficial effects:

[0037] Firstly, the driving motor drives the anti-blocking brush to rotate simultaneously while moving forward and backward through the anti-blocking component, which can effectively clean the screen holes of the screen inside the primary vibrating screen and the secondary vibrating screen, avoiding the clogging of the screen by the raw materials, semi-finished products or finished products of the biological feed, resulting in reduced screening efficiency.

[0038] Secondly, by moving the toggle plate forward, the current screen can be removed from the primary vibrating screen or the secondary vibrating screen. The new screen can be quickly fixed to the primary vibrating screen or the secondary vibrating screen through the cooperation of the latch and the plug-in block on the new screen. Screens with different sizes of mesh can be easily replaced and are more applicable.

[0039] The utility model can quickly and effectively clean the sieve holes of the screen inside the primary vibrating screen and the secondary vibrating screen through the movement of the anti-blocking brush, avoid the sieve holes being blocked by materials and causing the screening efficiency to be reduced, thereby improving the effect of biological feed screening in disguise. The sieves with different sizes of sieve holes can be replaced by moving the toggle plate. The operation is convenient and fast, and the applicability of the primary vibrating screen and the secondary vibrating screen is enhanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0041] Figure 2 It is a schematic diagram of the structure of a primary vibrating screen of the utility model.

[0042] Figure 3 It is a schematic diagram of the anti-blocking brush structure of the utility model.

[0043] Figure 4 It is a schematic diagram of the fixed guide rail structure of the utility model.

[0044] Figure 5 It is a structural schematic diagram of a slider of the utility model.

[0045] Figure 6 It is a structural schematic diagram of a fixing box of the utility model.

[0046] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0047] 1. Main frame; 2. First-stage vibrating screen; 3. Second-stage vibrating screen; 4. Material receiving piece; 5. Driving motor; 6. Transmission box; 7. Active bevel gear; 8. First transmission shaft; 801. Driven bevel gear; 802. Transmission worm; 9. Fixed guide rail; 10. Reciprocating screw; 1001. Transmission worm gear; 11. Sliding block; 12. Anti-blocking brush; 1201. Transmission gear; 13. Transmission rack; 14. Fixed box; 15. Latch; 1501. Toggle plate; 16. Reset spring; 17. Plug-in block. DETAILED DESCRIPTION

[0048] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0049] Embodiment 1:

[0050] As attached Figure 1 To Attachment Figure 6 As shown:

[0051] The utility model provides a biological feed multi-stage screening device, comprising a main frame 1;

[0052] A primary vibrating screen 2, the primary vibrating screen 2 is fixedly connected inside the main frame 1;

[0053] A secondary vibrating screen 3, the secondary vibrating screen 3 is fixedly connected to the inside of the main frame 1;

[0054] A material receiving member 4, which is fixedly connected to the bottom of the main frame 1;

[0055] A driving motor 5, which is fixedly connected to the top of the main frame 1;

[0056] A transmission box 6, which is fixedly connected to the front of the main frame 1;

[0057] A driving bevel gear 7, which is coaxially fixedly connected to the end of the rotating shaft of the driving motor 5;

[0058] A first transmission shaft 8, the first transmission shaft 8 is rotatably connected to the inside of the transmission box 6;

[0059] A driven bevel gear 801, which is coaxially fixedly connected to the top of the first transmission shaft 8, and meshes with the driving bevel gear 7;

[0060] Anti-clogging components: two groups of anti-clogging components are arranged, and the two groups of anti-clogging components are arranged under the primary vibrating screen 2 and the secondary vibrating screen 3 respectively.

[0061] Among them, the anti-blocking components include:

[0062] A transmission worm 802, the transmission worm 802 is coaxially fixedly connected to the outside of the first transmission shaft 8;

[0063] Fixed guide rails 9, two fixed guide rails 9 are provided, and the two fixed guide rails 9 are dispersedly fixedly connected inside the main frame 1;

[0064] A reciprocating screw 10, the reciprocating screw 10 is rotatably connected to the inside of the fixed guide rail 9 on the right side;

[0065] The transmission worm wheel 1001 is coaxially fixedly connected to the front end of the reciprocating screw 10, and the transmission worm wheel 1001 is meshed with the transmission worm 802. The effect brought about is that the drive motor 5 drives the first transmission shaft 8 to rotate through the bevel gear transmission mechanism composed of the meshing of the driven bevel gear 801 and the active bevel gear 7, and the first transmission shaft 8 drives the reciprocating screw 10 to rotate through the worm gear transmission mechanism composed of the meshing of the transmission worm wheel 1001 and the transmission worm 802.

[0066] Among them, the anti-blocking components also include:

[0067] Slider 11, two sliders 11 are provided, and the two sliders 11 are slidably connected inside the two fixed guide rails 9 respectively, and the slider 11 on the right is threadedly connected to the reciprocating screw 10;

[0068] The anti-blocking brush 12 is rotatably connected to the inner sides of the two sliders 11, so that the reciprocating screw 10 drives the anti-blocking brush 12 to move forward and backward through the threaded transmission mechanism formed by the slider 11 on the right and the reciprocating screw 10.

[0069] Among them, the anti-blocking components also include:

[0070] Transmission gear 1201, two transmission gears 1201 are provided, and the two transmission gears 1201 are coaxially fixedly connected to the left and right ends of the anti-blocking brush 12 respectively;

[0071] The transmission rack 13 has two transmission racks 13, which are respectively fixedly connected to the inside of the two fixed guide rails 9, and the two transmission racks 13 are respectively meshed with the two transmission gears 1201. The effect brought about is that when the anti-blocking brush 12 moves forward and backward, it will also drive the anti-blocking brush 12 to rotate through the threaded transmission mechanism formed by the two transmission racks 13 and the two transmission gears 1201 respectively meshing.

[0072] The specific usage and function of this embodiment are as follows:

[0073] When it is found that the screens inside the primary vibrating screen 2 and the secondary vibrating screen 3 are clogged and the screening efficiency is reduced, the driving motor 5 is started. The driving motor 5 drives the first transmission shaft 8 to rotate through the bevel gear transmission mechanism composed of the meshing of the driven bevel gear 801 and the active bevel gear 7. The first transmission shaft 8 drives the reciprocating screw 10 to rotate through the worm gear transmission mechanism composed of the meshing of the transmission worm wheel 1001 and the transmission worm 802. The reciprocating screw 10 drives the anti-blocking brush 12 to move forward and backward through the threaded transmission mechanism composed of the slider 11 on the right and the reciprocating screw 10. When the anti-blocking brush 12 moves forward and backward, it will also drive the anti-blocking brush 12 to rotate through the threaded transmission mechanism composed of the meshing of two transmission racks 13 and two transmission gears 1201 respectively, thereby cleaning the sieve holes of the sieves inside the primary vibrating screen 2 and the secondary vibrating screen 3 to avoid the reduction of screening efficiency due to clogging of the screen.

[0074] Embodiment 2:

[0075] Based on the first embodiment, as shown in the attached Figure 1 To Attachment Figure 6 As shown, a replacement and disassembly component is also included, and the replacement and disassembly component is arranged in front of the first-level vibrating screen 2 and the second-level vibrating screen 3.

[0076] Among them, the replacement and disassembly components include:

[0077] A fixing box 14, wherein two fixing boxes 14 are provided, and the two fixing boxes 14 are respectively fixedly connected in front of the primary vibrating screen 2 and the secondary vibrating screen 3;

[0078] The latch 15 is provided with two pieces, and the two pieces of the latch 15 are slidably connected to the inside of the two fixing boxes 14 respectively;

[0079] The toggle plate 1501 is provided with two pieces, and the two toggle plates 1501 are respectively fixedly connected to the two latches 15 , so that the function brought about is that when the toggle plate 1501 is moved toward the front side, the latches 15 can be driven to be completely retracted into the interior of the fixed box 14 .

[0080] Among them, the replacement and disassembly components also include:

[0081] The return spring 16 is provided with two pieces, the front ends of the two return springs 16 are respectively fixedly connected to the inside of the two fixing boxes 14, and the rear ends of the two return springs 16 are respectively fixedly connected to the front of the two latches 15;

[0082] The plug-in block 17 is provided with two pieces, and the two plug-in blocks 17 are respectively fixedly connected to the screens of the primary vibrating screen 2 and the secondary vibrating screen 3, so that the function is to loosen the toggle plate 1501, and under the action of the reset spring 16, the latch 15 extends out of the fixed box 14 and is inserted into the plug-in block 17.

[0083] The specific usage and function of this embodiment are as follows:

[0084] When it is necessary to screen biological feeds of different particle sizes, the currently used screen may not meet the use requirements. At this time, the toggle plate 1501 can be moved forward to drive the latch 15 to be completely retracted into the fixed box 14, thereby removing the screen inside the primary vibrating screen 2 or the secondary vibrating screen 3; after replacing the new screen, move the toggle plate 1501 forward again, put the new screen into the primary vibrating screen 2 or the secondary vibrating screen 3, release the toggle plate 1501, and under the action of the reset spring 16, the latch 15 extends out of the fixed box 14 and is inserted into the plug-in block 17 above the new screen, thereby fixing the screen inside the primary vibrating screen 2 or the secondary vibrating screen 3.

Claims

1. A biological feed multi-stage screening device, comprising a main frame, a primary vibrating screen, a secondary vibrating screen, a material receiving member, a driving motor, a transmission box, an active bevel gear, a first transmission shaft, a driven bevel gear, an anti-blocking component and a replacement and disassembly component; characterized in that: The first-stage vibrating screen is fixedly connected to the inside of the main frame; the second-stage vibrating screen is fixedly connected to the inside of the main frame; the material receiving piece is fixedly connected to the bottom of the main frame; the driving motor is fixedly connected to the top of the main frame; the transmission box is fixedly connected to the front of the main frame; the active bevel gear is coaxially fixedly connected to the end of the rotating shaft of the driving motor; the first transmission shaft is rotatably connected to the inside of the transmission box; The driven bevel gear is coaxially fixedly connected to the top of the first transmission shaft, and the driven bevel gear is meshed with the driving bevel gear; two groups of anti-blocking components are arranged, and the two groups of anti-blocking components are respectively arranged under the first-level vibrating screen and the second-level vibrating screen; the replacement and disassembly components are arranged in front of the first-level vibrating screen and the second-level vibrating screen.

2. A biological feed multi-stage screening device as claimed in claim 1, characterized in that: The anti-blocking component includes: a transmission worm, a fixed guide rail, a reciprocating screw and a transmission worm wheel; the transmission worm is coaxially fixedly connected to the outside of the first transmission shaft; the fixed guide rail is provided with two pieces, and the two pieces of the fixed guide rails are dispersedly fixedly connected inside the main frame; the reciprocating screw is rotatably connected inside the fixed guide rail on the right side; the transmission worm wheel is coaxially fixedly connected to the front end of the reciprocating screw, and the transmission worm wheel is meshed with the transmission worm.

3. A biological feed multi-stage screening device as claimed in claim 2, characterized in that: The anti-blocking component also includes: a slider and an anti-blocking brush; the slider is provided with two pieces, the two sliders are respectively slidably connected inside two fixed guide rails, and the slider on the right is threadedly connected to the reciprocating screw; the anti-blocking brush is rotatably connected to the inner sides of the two sliders.

4. A biological feed multi-stage screening device as claimed in claim 3, characterized in that: The anti-blocking component also includes: a transmission gear and a transmission rack; the transmission gear is provided in two pieces, and the two transmission gears are coaxially fixedly connected to the left and right ends of the anti-blocking brush respectively; the transmission rack is provided in two pieces, and the two transmission racks are respectively fixedly connected inside two fixed guide rails, and the two transmission racks are respectively meshed with the two transmission gears.

5. A biological feed multi-stage screening device as claimed in claim 1, characterized in that: The replacement and disassembly assembly includes: a fixed box, a latch and a toggle plate; the fixed boxes are provided in two pieces, and the two fixed boxes are respectively fixedly connected to the front of the first-stage vibrating screen and the second-stage vibrating screen; the latches are provided in two pieces, and the two latches are respectively slidably connected inside the two fixed boxes; the toggle plates are provided in two pieces, and the two toggle plates are respectively fixedly connected to the two latches.

6. A biological feed multi-stage screening device as claimed in claim 5, characterized in that: The replacement and disassembly assembly also includes: a reset spring and a plug-in block; two reset springs are provided, and the front ends of the two reset springs are respectively fixedly connected inside the two fixing boxes, and the rear ends of the two reset springs are respectively fixedly connected in front of the two latches; two plug-in blocks are provided, and the two plug-in blocks are respectively fixedly connected on the screens of the first-level vibrating screen and the second-level vibrating screen.

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