Double-shaft elliptical screen

Abstract

The utility model relates to the technical field of double-shaft screens, in particular to a double-shaft elliptical screen, which is characterized in that a first elliptical shaft is positioned at the right end below a mesh screen part and can push the right end of the mesh screen part to reciprocate up and down and push the mesh screen part leftwards, and a second elliptical shaft is positioned at the left end below the mesh screen part and can push the left end of the mesh screen part to reciprocate up and down. The mesh screen part can be pushed rightwards; the rotating first elliptical shaft enables the height of the right end of the mesh screen part to change periodically and pushes the mesh screen part leftwards, and the rotating second elliptical shaft enables the height of the left end of the mesh screen part to change periodically and pushes the mesh screen part rightwards, so that the motion trail of the mesh screen part is elliptical, and the screening efficiency is improved; and when the vertex height of the first elliptical shaft is the highest and the vertex height of the second elliptical shaft is the lowest, the mesh screen part inclines leftwards to the maximum angle, when the vertex height of the first elliptical shaft is the lowest and the vertex height of the second elliptical shaft is the highest, the mesh screen part inclines rightwards to the maximum angle, and the operation is repeated to promote the mesh screen part to vibrate greatly.

Description

Technical Field

[0001] The utility model relates to the technical field of double-shaft screens, in particular to a double-shaft elliptical screen. Background Art

[0002] The twin-shaft screen is a highly efficient material screening device widely used in industries such as mining, metallurgy, building materials, and chemicals. Its screening principle is based on the free-falling and rolling motion of materials of varying particle sizes across the screen. As materials enter the screening mechanism through the feed inlet, the screen vibrates continuously due to the twin-shaft vibrations of the screen. As a result, larger particles roll down to the lower screen, while smaller particles fall freely, thus separating materials of varying particle sizes. A twin-shaft screen primarily consists of a screen frame, screen mesh, vibrator, shock-absorbing springs, feed port, and discharge port. The screen frame is the main structure supporting the screen mesh and possesses sufficient strength and rigidity to ensure stable and reliable screening. The screen mesh is made of high-strength manganese steel, offering high strength and good wear resistance, enabling efficient screening. The vibrator is driven by two vibration motors with different frequencies, causing the entire screen to vibrate. The shock-absorbing springs act as a vibration buffer, enhancing the stability and reliability of the screening equipment. The feed port and discharge port, respectively, are used for material input and output, facilitating operation and maintenance. Traditional twin-shaft screens feature linear mesh motion, resulting in low screening efficiency. Utility Model Content

[0003] The main purpose of the utility model is to provide a double-axis elliptical screen to solve the problem in the related art that the screen mesh moves linearly and the screening efficiency is low.

[0004] To achieve the above object, according to one aspect of the present invention, a dual-axis elliptical screen is provided, comprising a main unit and a mesh screen portion, wherein the mesh screen portion comprises a spring and is fixed to the upper portion of the main unit by the spring, and the mesh screen portion can swing up and down and left and right in the main unit;

[0005] a first oscillating portion, the first oscillating portion comprising a first driving group, a first driven group, and a first elliptical shaft, a plurality of protrusions being fixedly provided on an outer surface of the first elliptical shaft, the first elliptical shaft being fixedly connected to the first driven group, the first driving group being capable of driving the first driven group and the first elliptical shaft to rotate, the first elliptical shaft being located at the lower right end of the mesh portion, capable of driving the right end of the mesh portion to reciprocate up and down, and capable of pushing the mesh portion to the left;

[0006] The second oscillating part includes a second driving group, a second driven group and a second elliptical axis. A plurality of protrusions are fixedly provided on the outer surface of the second elliptical axis. The second elliptical axis is fixedly connected to the second driven group. The second driving group can drive the second driven group and the second elliptical axis to rotate. The second elliptical axis is located at the lower left end of the mesh part, can push the left end of the mesh part to reciprocate up and down, and can push the mesh part to the right.

[0007] Furthermore, the mesh part also includes a first mesh, a second mesh and a third mesh. The first mesh is arranged above the second mesh by bolts, the third mesh is arranged above the second mesh by bolts, and the middle of the bottom surface of the third mesh is fixedly connected to the top of the spring.

[0008] Furthermore, the first driving group includes a first power source and a first driving shaft. The first power source is fixedly arranged on one side of the main machine. The first driving shaft is fixedly connected to the first power source. The first power source can drive the first driving shaft to rotate.

[0009] Furthermore, the first driven group includes several first transmission belts, a first driven shaft and a first fixed ring. The first fixed ring is fixedly arranged on one side of the main machine and is located on the same side as the first power source. The first driven shaft passes through the first fixed ring and extends into the interior of the main machine. One end of the first driven shaft is rotatably connected to the side wall of the main machine, and the other end is rotatably connected to the first fixed ring. The first transmission belts are both sleeved on the ends of the first driving shaft and the first driven shaft, and the first driving shaft drives the first driven shaft to rotate through the first transmission belt.

[0010] Furthermore, the first elliptical shaft is fixedly sleeved on the outer ring of the first driven shaft.

[0011] Furthermore, the second driving group includes a second power source and a second driving shaft, the second power source is fixedly arranged on one side of the main engine, the second driving shaft is fixedly connected to the second power source, and the second power source can drive the second driving shaft to rotate.

[0012] Furthermore, the second driven group includes several second transmission belts, a second driven shaft and a second fixed ring. The second fixed ring is fixed on one side of the main machine and is located on the same side as the second power source. The second driven shaft passes through the second fixed ring and extends into the interior of the main machine. One end of the second driven shaft is rotatably connected to the side wall of the main machine, and the other end is rotatably connected to the second fixed ring.

[0013] Furthermore, the second elliptical shaft is fixedly sleeved on the outer ring of the second driven shaft.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the rotating first elliptical axis causes the height of the right end of the mesh screen portion to change periodically and pushes the mesh screen portion to the left; the rotating second elliptical axis causes the height of the left end of the mesh screen portion to change periodically and pushes the mesh screen portion to the right, so that the motion trajectory of the mesh screen portion is elliptical, thereby improving the screening efficiency; when the vertex height of the first elliptical axis is the highest and the vertex height of the second elliptical axis is the lowest, the mesh screen portion tilts to the left to the maximum angle; when the vertex height of the first elliptical axis is the lowest and the vertex height of the second elliptical axis is the highest, the mesh screen portion tilts to the right to the maximum angle, and so on. The cycle causes the mesh screen portion to vibrate significantly, so that small particles in the first mesh screen pass through the mesh of the first mesh screen and fall into the second mesh screen, and even smaller particles in the second mesh screen pass through the mesh of the second mesh screen and fall into the third mesh screen, thereby performing graded screening on the materials. The mesh screen portion that vibrates significantly is beneficial to improving the screening efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an overall schematic diagram of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the utility model mesh screen leaning to the left;

[0018] Figure 4 This is a schematic diagram of the utility model mesh screen leaning to the right;

[0019] Figure 5 This is a schematic diagram of the elliptical shaft structure of the utility model.

[0020] Illustration:

[0021] 1. Host;

[0022] 2. Screen unit; 21. First screen; 22. Second screen; 23. Third screen; 24. Spring;

[0023] 3. First oscillating part; 31. First power source; 32. First driving shaft; 33. First transmission belt; 34. First driven shaft; 35. First fixing ring; 36. First elliptical axis; 361. Protrusion;

[0024] 4. Second oscillating part; 41. Second power source; 42. Second driving shaft; 43. Second transmission belt; 44. Second driven shaft; 45. Second fixed ring; 46. Second elliptical axis. DETAILED DESCRIPTION

[0025] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the following is a detailed description of the specific implementation method, structure, characteristics and effects of the present invention in combination with the accompanying drawings and preferred embodiments.

[0026] See also Figures 1 to 5 The present embodiment provides a biaxial elliptical screen, comprising a main unit 1, and further comprising: a mesh portion 2, the mesh portion 2 comprising a spring 24, the mesh portion 2 being fixed to the upper portion of the main unit 1 by the spring 24, and the mesh portion 2 being able to swing up and down and left and right in the main unit 1;

[0027] The first oscillating part 3 includes a first driving group, a first driven group and a first elliptical shaft 36. A plurality of protrusions 361 are fixedly provided on the outer surface of the first elliptical shaft 36. The protrusions 361 are of different sizes, which increase the irregularity of the movement of the mesh part 2 by the first elliptical shaft 36, thereby improving the screening efficiency. The first elliptical shaft 36 is fixedly connected to the first driven group. The first driving group can drive the first driven group and the first elliptical shaft 36 to rotate. The first elliptical shaft 36 is located at the lower right end of the mesh part 2, and can push the right end of the mesh part 2 to reciprocate up and down, and can push the mesh part 2 to the left. When the first elliptical shaft 36 has the highest vertex, the friction with the mesh part 2 is the largest, pushing the mesh part 2 to the left;

[0028] The second oscillating part 4 includes a second driving group, a second driven group and a second elliptical shaft 46. A plurality of protrusions 361 are fixedly provided on the outer surface of the second elliptical shaft 46. The protrusions 361 are of different sizes, which increase the irregularity of the movement of the mesh part 2 by the second elliptical shaft 46, thereby improving the screening efficiency. The second elliptical shaft 46 is fixedly connected to the second driven group. The second driving group can drive the second driven group and the second elliptical shaft 46 to rotate. The second elliptical shaft 46 is located at the lower left end of the mesh part 2, which can push the left end of the mesh part 2 to reciprocate up and down, and can push the mesh part 2 to the right. When the second elliptical shaft 46 has the highest vertex, the friction with the mesh part 2 is the largest, pushing the mesh part 2 to the right. The first elliptical shaft 36 and the second elliptical shaft 46 alternately push the mesh part 2, so that the motion trajectory of the mesh part 2 is elliptical, thereby improving the screening efficiency.

[0029] The mesh part 2 also includes a first mesh 21, a second mesh 22 and a third mesh 23. The first mesh 21 is arranged above the second mesh 22 by bolts, and the third mesh 23 is arranged above the second mesh 22 by bolts. The middle part of the bottom surface of the third mesh 23 is fixedly connected to the top of the spring 24. The mesh of the first mesh 21 is larger than the mesh of the second mesh 22, and the mesh of the second mesh 22 is larger than the mesh of the third mesh 23, so as to realize the graded screening of the material.

[0030] The first drive group includes a first power source 31 and a first driving shaft 32. In this embodiment, a motor is preferably used as the first power source 31, which is simple and easy to operate. The first power source 31 is fixedly arranged on one side of the main machine 1, and the first driving shaft 32 is fixedly connected to the first power source 31. The first power source 31 can drive the first driving shaft 32 to rotate.

[0031] The first driven group includes several first transmission belts 33, a first driven shaft 34 and a first fixed ring 35. The first fixed ring 35 is fixedly arranged on one side of the main machine 1 and is located on the same side as the first power source 31. The first driven shaft 34 passes through the first fixed ring 35 and extends into the interior of the main machine 1. The first fixed ring 35 supports the first driven shaft 34 extending out of the main machine 1 to ensure smooth rotation of the first driven shaft 34. One end of the first driven shaft 34 is rotatably connected to the side wall of the main machine 1, and the other end is rotatably connected to the first fixed ring 35. The first transmission belts 33 are sleeved on the ends of the first driving shaft 32 and the first driven shaft 34. The first driving shaft 32 drives the first driven shaft 34 to rotate through the first transmission belt 33.

[0032] The first elliptical shaft 36 is fixedly sleeved on the outer ring of the first driven shaft 34 .

[0033] The second drive group includes a second power source 41 and a second driving shaft 42. In this embodiment, a motor is preferably used as the second power source 41, which is simple and easy to operate. The second power source 41 is fixedly arranged on one side of the main unit 1, and the second driving shaft 42 is fixedly connected to the second power source 41. The second power source 41 can drive the second driving shaft 42 to rotate.

[0034] The second driven group includes several second transmission belts 43, a second driven shaft 44 and a second fixed ring 45. The second fixed ring 45 is fixedly arranged on one side of the main machine 1 and is located on the same side as the second power source 41. The second driven shaft 44 passes through the second fixed ring 45 and extends into the interior of the main machine 1. The second fixed ring 45 supports the second driven shaft 44 extending out of the main machine 1 to ensure smooth rotation of the second driven shaft 44. One end of the second driven shaft 44 is rotatably connected to the side wall of the main machine 1, and the other end is rotatably connected to the second fixed ring 45.

[0035] The second elliptical shaft 46 is fixedly sleeved on the outer ring of the second driven shaft 44 .

[0036] The material to be screened is placed in the first mesh screen 21, and the first power source 31 and the second power source 41 are started at the same time. The first power source 31 drives the first driving shaft 32 to rotate in the counterclockwise direction, and the first transmission belt 33 causes the first driven shaft 34 to rotate synchronously with the first driving shaft 32. The first elliptical shaft 36 rotates along with the first driven shaft 34. The rotating first elliptical shaft 36 causes the height of the right end of the mesh screen portion 2 to change periodically and push the mesh screen portion 2 to the left; the second power source 41 drives the second driving shaft 42 to rotate in the clockwise direction, and the second transmission belt 43 causes the second driven shaft 44 to rotate synchronously with the second driving shaft 42. The second elliptical shaft 46 rotates along with the second driven shaft 44. The rotating second elliptical shaft 46 causes the height of the left end of the mesh screen portion 2 to change periodically and push the mesh screen portion 2 to the right; when the first When the vertex height of the elliptical axis 36 is the highest and the vertex height of the second elliptical axis 46 is the lowest, the mesh screen portion 2 tilts to the left to the maximum angle. As the first elliptical axis 36 and the second elliptical axis 46 continue to rotate, the vertex height of the first elliptical axis 36 becomes lower and lower, and the vertex height of the second elliptical axis 46 becomes higher and higher. When the vertex height of the first elliptical axis 36 is the lowest and the vertex height of the second elliptical axis 46 is the highest, the mesh screen portion 2 tilts to the right to the maximum angle. This cycle causes the mesh screen portion 2 to vibrate significantly, so that the small particles in the first mesh screen 21 pass through the mesh of the first mesh screen 21 and fall into the second mesh screen 22. The smaller particles in the second mesh screen 22 pass through the mesh of the second mesh screen 22 and fall into the third mesh screen 23. The material is graded and screened. The mesh screen portion 2 vibrates significantly, which is beneficial to improving the screening efficiency.

[0037] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A double-axis elliptical screen, comprising a main machine (1), characterized in that: Also includes: A mesh screen portion (2), the mesh screen portion (2) comprising a spring (24), the mesh screen portion (2) being fixed above the interior of the host (1) by the spring (24), and the mesh screen portion (2) being capable of swinging up and down and left and right within the host (1); a first oscillating portion (3), the first oscillating portion (3) comprising a first driving group, a first driven group and a first elliptical shaft (36); a plurality of protrusions (361) are fixedly provided on the outer surface of the first elliptical shaft (36); the first elliptical shaft (36) is fixedly connected to the first driven group; the first driving group can drive the first driven group and the first elliptical shaft (36) to rotate; the first elliptical shaft (36) is located at the lower right end of the mesh part (2) and can push the right end of the mesh part (2) to reciprocate up and down, and can push the mesh part (2) to the left; The second oscillating portion (4) comprises a second driving group, a second driven group, and a second elliptical shaft (46). The outer surface of the second elliptical shaft (46) is fixedly provided with a plurality of protrusions (361). The second elliptical shaft (46) is fixedly connected to the second driven group. The second driving group can drive the second driven group and the second elliptical shaft (46) to rotate. The second elliptical shaft (46) is located at the lower left end of the mesh part (2) and can push the left end of the mesh part (2) to reciprocate up and down, and can push the mesh part (2) to the right.

2. The double-shaft elliptical screen according to claim 1, characterized in that: The mesh part (2) further comprises a first mesh (21), a second mesh (22) and a third mesh (23), wherein the first mesh (21) is arranged above the second mesh (22) by means of bolts, and the third mesh (23) is arranged above the second mesh (22) by means of bolts, and the middle portion of the bottom surface of the third mesh (23) is fixedly connected to the top end of the spring (24).

3. The double-shaft elliptical screen according to claim 1, characterized in that: The first driving group includes a first power source (31) and a first driving shaft (32). The first power source (31) is fixedly arranged on one side of the main machine (1). The first driving shaft (32) is fixedly connected to the first power source (31). The first power source (31) can drive the first driving shaft (32) to rotate.

4. The double-shaft elliptical screen according to claim 3, characterized in that: The first driven group includes a plurality of first transmission belts (33), a first driven shaft (34) and a first fixed ring (35). The first fixed ring (35) is fixedly arranged on one side of the host (1) and is located on the same side as the first power source (31). The first driven shaft (34) passes through the first fixed ring (35) and extends into the interior of the host (1). One end of the first driven shaft (34) is rotatably connected to the side wall of the host (1), and the other end is rotatably connected to the first fixed ring (35). The first transmission belt (33) is sleeved on the ends of the first driving shaft (32) and the first driven shaft (34). The first driving shaft (32) drives the first driven shaft (34) to rotate through the first transmission belt (33).

5. The double-shaft elliptical screen according to claim 1, characterized in that: The first elliptical shaft (36) is fixedly sleeved on the outer ring of the first driven shaft (34).

6. The double-shaft elliptical screen according to claim 1, characterized in that: The second driving group includes a second power source (41) and a second driving shaft (42). The second power source (41) is fixedly arranged on one side of the main machine (1). The second driving shaft (42) is fixedly connected to the second power source (41). The second power source (41) can drive the second driving shaft (42) to rotate.

7. The double-shaft elliptical screen according to claim 6, characterized in that: The second driven group includes a plurality of second transmission belts (43), a second driven shaft (44) and a second fixed ring (45). The second fixed ring (45) is fixedly arranged on one side of the host (1) and is located on the same side as the second power source (41). The second driven shaft (44) passes through the second fixed ring (45) and extends into the interior of the host (1). One end of the second driven shaft (44) is rotatably connected to the side wall of the host (1), and the other end is rotatably connected to the second fixed ring (45).

8. The double-shaft elliptical screen according to claim 7, characterized in that: The second elliptical shaft (46) is fixedly sleeved on the outer ring of the second driven shaft (44).

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