Screening apparatus
By using variable diameter support components in screening equipment, the problem of traditional screening equipment being unable to dynamically adjust vibration stiffness is solved, enabling adaptive stiffness adjustment, improving the versatility and reliability of the equipment, reducing manual replacement of support components, and extending the service life of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN SHANGSHUI INTELLIGENT CO LTD
- Filing Date
- 2025-07-02
- Publication Date
- 2026-07-21
AI Technical Summary
Traditional screening equipment cannot dynamically adjust the vibration stiffness according to the material characteristics, which means that when different materials need to be screened with different vibration parameters, the support components need to be replaced manually, resulting in long downtime and complicated operation, and reduced screening efficiency.
The system employs variable diameter support components, where the radial width of the elastic support gradually changes. It has non-linear stiffness and can adaptively adjust the stiffness to match the vibration screening requirements of different materials, thus avoiding the need for manual replacement of the support components.
It improves the versatility and reliability of screening equipment, reduces downtime and operational complexity, and extends equipment lifespan.
Smart Images
Figure CN224525233U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of material screening technology, and in particular to a screening device. Background Technology
[0002] Traditional screening equipment cannot dynamically adjust vibration stiffness according to material characteristics (such as particle size, density, and moisture content). This means that when traditional screening equipment needs different vibration parameters to screen different materials (such as positive electrode materials LFP / NCM and negative electrode graphite), the support components need to be replaced manually. This results in long downtime and complicated operation of the screening equipment, which is not conducive to ensuring screening efficiency. Utility Model Content
[0003] This application proposes a screening device. By setting a variable diameter support in the screening device, the variable diameter support has nonlinear stiffness and the stiffness can be adaptively adjusted to match the vibration screening requirements of different materials, avoiding the tedious operation of manually replacing the support and improving the versatility and reliability of the screening device.
[0004] In a first aspect, embodiments of this application propose a screening device, which includes a first chamber and a second chamber. The first chamber is used for screening and outputting materials, and the second chamber is used for supporting and vibrating the first chamber. The second chamber includes an elastic support member and a main body, and the main body and the first chamber are connected by the elastic support member. At least two elastic support members are respectively disposed at opposite ends of the side of the main body facing the first chamber, and the radial width of the elastic support member gradually changes.
[0005] This application embodiment gradually changes the radial width of the elastic support, and the stiffness value K of the elastic support can exhibit a piecewise function characteristic with the compression amount ΔL. That is, the elastic support has nonlinear stiffness, and the stiffness of the elastic support can be adaptively adjusted to match the vibration screening requirements of different materials. This avoids the tedious operation of manually replacing the support during the use of the screening equipment, and improves the versatility and reliability of the screening equipment.
[0006] In one possible implementation, the elastic support includes a first support portion and two second support portions, with the main body, one second support portion, the first support portion, the other second support portion, and the first chamber body connected sequentially. From the first support portion to the second support portion, the radial width of the elastic support gradually decreases, and the radial widths at the transition between the first and second support portions are equal. This allows the first support portion, located in the middle of the elastic support, to dominate deformation when the screening equipment starts working, providing low-stiffness support and achieving low-amplitude vibration of the first chamber body 1. The second support portions located at both ends of the elastic support gradually participate in deformation, resulting in an increasing stiffness provided by the elastic support, which helps to suppress excessive amplitude vibrations during high-amplitude operation of the screening equipment.
[0007] In one possible implementation, the wire diameter of the elastic support gradually increases from the first support portion to the second support portion, and the wire diameter is equal at the transition between the first and second support portions. By making the wire diameter smaller in the middle of the elastic support, the elastic coefficient in the middle of the elastic support is smaller. When the screening equipment starts working, the first support portion located in the middle of the elastic support can deform first and provide low-stiffness support, realizing low-amplitude vibration of the first chamber. This helps to disperse the stress of the first chamber onto the elastic support, avoiding stress concentration on the elastic support and thus reducing its service life.
[0008] In one possible implementation, the ratio of the minimum radial width of the second support to the maximum radial width of the first support is 0.85-0.95. By setting the ratio of the minimum radial width of the second support to the maximum radial width of the first support to 0.85-0.95, the elastic support can maintain a large contact area with the first chamber and the second main body while possessing nonlinear stiffness. This helps to reduce the unit volume load of the elastic support and extend its service life.
[0009] In one possible implementation, the number of effective elastic coils in the first and second supports is 6-9. This ensures that the elastic support has sufficient upper limit stiffness while its size is not too large, thus avoiding excessive volume in the screening equipment.
[0010] In one possible implementation, the ratio of the pitch between any two adjacent effective elastic coils of the elastic support to the radial width of the first support is 1.15-2.19, or the ratio of the pitch between any two adjacent effective elastic coils of the elastic support to the radial width of the second support is 1.15-2.19. This allows the elastic support to simultaneously possess moderate axial stiffness and good radial stability, and allows the elastic support to arrange a reasonable number of effective coils within a given axial space, thereby optimizing the spring's load-bearing capacity and stroke, and contributing to a more uniform stress distribution when the spring is under load.
[0011] In one possible implementation, a first pitch exists between any two adjacent effective elastic coils of the first support portion, and a second pitch exists between any two adjacent effective elastic coils of the second support portion, with the first pitch being larger than the second pitch. By making the first pitch H1 of the first support portion located in the middle of the elastic support larger, the initial stiffness provided by the elastic support is smaller, providing good buffering properties and allowing the first support portion to deform uniformly, delaying yielding, and thus improving the stress concentration problem in the middle of the elastic support. By making the second pitch H2 of the second support portions located at both ends of the elastic support smaller, the ultimate stiffness of the elastic support is improved, preventing the elastic support from overloading due to strong stress.
[0012] In one possible implementation, the main body is a second main body, and the first chamber includes a first main body, a screen, and an eccentric member. The first main body has a screening chamber, in which the screen and the eccentric member are located. The second chamber also includes a vibrating member. The second main body has a receiving cavity, in which the vibrating member is located. A first mounting surface of the first main body facing the second main body has a first through hole, and a second mounting surface of the second main body facing the first main body has a second through hole. The first and second through holes are arranged opposite to each other. The vibrating member is connected to the eccentric member sequentially through the first and second through holes. The eccentric member is movably connected to the screen. At least two elastic support members are connected between the second main body and the first main body around the second through hole. The vibrating member is used to drive the eccentric member to output excitation forces of different amplitudes to the screen to achieve screening of materials with different characteristics. By arranging at least two elastic support members around the second through hole located at the center of the second mounting surface of the second main body, it is beneficial to uniformly distribute the excitation force, ultimately achieving a good screening effect.
[0013] In one possible implementation, the first chamber further includes a discharge pipe protruding from the peripheral wall of the first main body, through which the screening chamber communicates with the outside. The number of elastic supports is at least three, with the number of elastic supports located on the side of the first mounting surface adjacent to the discharge pipe being greater than the number located on the side of the first mounting surface away from the discharge pipe. The discharge pipe on the peripheral wall of the first main body causes the center of gravity of the first chamber to shift towards the side with the discharge pipe. Correspondingly, by placing more elastic supports on a local surface of the first mounting surface on the side where the center of gravity is shifted, the stress on each elastic support can be balanced, avoiding stress concentration issues and ultimately extending the service life of the screening equipment while achieving good screening results.
[0014] In one possible implementation, the interval angle between any two adjacent elastic supports is unique. The interval angle between any two adjacent elastic supports on the side of the first mounting surface adjacent to the discharge pipe is smaller than the interval angle between any two adjacent elastic supports on the side of the first mounting surface away from the discharge pipe. That is, the elastic supports on the side of the first mounting surface adjacent to the discharge pipe are more densely distributed, while the elastic supports on the side of the first mounting surface away from the discharge pipe are more dispersed. By asymmetrically arranging multiple elastic supports between the first and second chambers, it is beneficial to reduce the load on the elastic supports with larger loads and extend their service life. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of the screening equipment provided in the embodiments of this application; Figure 2 This is a side view of the screening equipment provided in the embodiments of this application; Figure 3 yes Figure 2A magnified schematic diagram of the local structure at point A; Figure 4 This is a side view of a screening device provided in another embodiment of this application; Figure 5 This is a top view of the screening equipment provided in the embodiments of this application.
[0016] Figure label: 100 - Screening equipment; 1 - First chamber; 11 - First main body; 111 - Screening chamber; 112 - First mounting surface; 1121 - First through hole; 113 - Peripheral side wall; 13 - Eccentric component; 14 - Screen; 12 - Discharge pipe; 12a - First discharge pipe; 12b - Second discharge pipe; 2 - Second chamber; 21 - Second main body; 211 - Receiving cavity; 212 - Second mounting surface; 2121 - Second through hole; 22 - Elastic support component; 221 - First support part; L1 - Maximum radial width of the first support part; H1 - First pitch; 222 - Second support part; L2 - Minimum radial width of the second support part; H2 - Second pitch; 23 - Vibration component; 3 - Mounting component. Detailed Implementation
[0017] For ease of understanding, the relevant technical terms involved in the embodiments of this application will be explained and described below.
[0018] In the description of the embodiments in this application, unless otherwise stated, "multiple" means two or more.
[0019] The terms "first," "second," etc., are used for descriptive purposes only and should not be construed as implying or suggesting relative importance or implicitly indicating the number of technical features indicated. Features specified as "first" or "second" may explicitly or implicitly include one or more of that feature.
[0020] The directional terms mentioned in the embodiments of this application, such as "upper," "lower," "front," "back," "left," "right," "inner," "outer," "side," "top," and "bottom," are only for reference to the directions in the accompanying drawings. These directional terms are used to better and more clearly explain and understand the embodiments of this application, and are not intended to explicitly or implicitly suggest that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, etc., and therefore should not be construed as limiting the embodiments of this application.
[0021] With the rapid development of lithium battery technology, the demand for screening different lithium battery materials, such as lithium iron phosphate (LFP) and nickel-cobalt-manganese (NCM) cathode materials and graphite anode materials, is increasing. Different lithium battery materials have completely different material properties, such as particle size, density, and moisture content. The support components of traditional screening equipment cannot dynamically adjust the vibration stiffness of the screening chamber according to the material properties of different materials. This means that when traditional screening equipment needs different vibration parameters to screen different materials, the support components must be manually replaced, resulting in long downtime and complicated operation, thus reducing screening efficiency.
[0022] Figure 1 This is a schematic diagram of the structure of the screening device 100 provided in the embodiments of this application. Figure 2 This is a side view of the screening device 100 provided in the embodiments of this application, combined with... Figure 1 and Figure 2 As shown, the screening equipment 100 includes a first chamber 1 and a second chamber 2, which are stacked perpendicular to the ground. The first chamber 1 can be used for screening and outputting materials. The second chamber 2 includes an elastic support member 22 and a second main body 21. The second main body 21 and the first chamber 1 can be connected by the elastic support member 22, that is, the elastic support member 22 is located between the second main body 21 and the first chamber 1, so that the second chamber 2 can be used to support and vibrate the first chamber 1. The number of elastic support members 22 is at least two, and at least two elastic support members 22 can be respectively disposed at opposite ends of the side of the second main body 21 facing the first chamber 1. For example, the side of the second main body 21 facing the first chamber 1 is the second mounting surface 212, and at least two elastic support members 22 can be respectively disposed on opposite sides of the second mounting surface 212, so that the first chamber 1 can be subjected to a uniform supporting force from the second chamber 2, which is beneficial to ensuring the relative stability of the screening process. The radial width of the elastic support 22 gradually changes. The radial direction of the elastic support 22 is perpendicular to the direction from the second chamber 2 to the first chamber 1, or perpendicular to the ground. The elastic support 22 can be considered as having multiple spaced nodes, each with a different radial width. This allows the stiffness value K of the elastic support 22 to exhibit a piecewise function characteristic with the compression amount ΔL, meaning the elastic support 22 has non-linear stiffness. Furthermore, the stiffness of the elastic support 22 can be adaptively adjusted to match the vibration screening requirements of different materials, avoiding the cumbersome manual replacement of support components during the use of the screening equipment 100, and improving the versatility and reliability of the screening equipment 100. Schematic, the elastic support 22 can be a variable diameter spring.
[0023] Combination Figure 1 and Figure 2As shown, in one possible implementation, the screening device 100 further includes mounting members 3, with at least four mounting members 3. Two mounting members 3 are respectively disposed on the second mounting surface 212 of the second main body 21 facing the first main body 11 of the first hopper 1, and on the first mounting surface 112 of the first main body 11 facing the second main body 21. The elastic support member 22 is respectively fitted onto the two mounting members 3 at its opposite ends along the direction perpendicular to the ground, thereby achieving a dynamic connection between the first main body 11 and the second main body 21.
[0024] Figure 3 yes Figure 2 A magnified view of the local structure at point A, combined with... Figure 1 , Figure 2 and Figure 3As shown, in one possible embodiment, the elastic support 22 includes a first support portion 221 and two second support portions 222. The second main body 21, one second support portion 222, the first support portion 221, the other second support portion 222, and the first compartment 1 are sequentially connected. That is, along the direction from the second compartment 2 to the first compartment 1, or along a direction perpendicular to the ground, the second main body 21, one second support portion 222, the first support portion 221, the other second support portion 222, and the first main body 11 of the first compartment 1 are sequentially connected. From the first support portion 221 to the second support portion 222, the radial width of the elastic support 22 gradually decreases. From the second support portion 222 to the first support portion 221, the radial width of the elastic support 22 gradually increases. Therefore, exemplarily, along the direction from the second compartment 2 to the first compartment 1, from the first second support portion 222 to the first support portion 221 located between the two second support portions 222, the radial width of the elastic support member 22 gradually increases, and the mating structure of the first second support portion 222 and the first support portion 221 is inverted trapezoidal; along the direction from the second compartment 2 to the first compartment 1, from the first support portion 221 to the second support portion 222 away from the second main body 21, the radial width of the elastic support member 22 gradually decreases, and the mating structure of the first support portion 221 and the second second support portion 222 is trapezoidal. Exemplarily, the elastic support member 22 including the first support portion 221 and the two second support portions 222 can be spindle-shaped. The elastic support member 22 is an integrally molded structure; the radial widths at the transition between the first support portion 221 and the second support portion 222 are equal; except at the transition between the first support portion 221 and the second support portion 222, the radial width of the first support portion 221 is greater than the radial width of the second support portion 222. This allows the first support portion 221, located in the middle of the elastic support member 22, to dominate the deformation when the screening equipment 100 starts working. This provides low-stiffness support, enabling low-amplitude vibration of the first chamber 1, such as when screening viscous materials. The second support portions 222 located at both ends of the elastic support member 22 gradually participate in the deformation, resulting in an increasing stiffness provided by the elastic support member 22. This helps to suppress excessive amplitude during high-amplitude operation of the screening equipment 100, such as when screening granular materials, providing high-stiffness support while suppressing excessive amplitude.
[0025] Combination Figure 1 , Figure 2 and Figure 3As shown, in one possible implementation, the first support portion 221 has a maximum radial width L1, and the second support portion 222 has a minimum radial width L2. The ratio of the minimum radial width L2 of the second support portion 222 to the maximum radial width L1 of the first support portion 221 is 0.85-0.95. That is, the maximum rate of change of the radial width of the elastic support member 22 is 15%, and the minimum rate of change is 5%. For example, the ratio of the minimum radial width L2 of the second support portion 222 to the maximum radial width L1 of the first support portion 221 can be 0.85, 0.86, 0.87, 0.88, 0.89, 0.90, 0.91, 0.92, 0.93, 0.94, or 0.95. Understandably, the ratio of the minimum radial width L2 of the second support portion 222 to the maximum radial width L1 of the first support portion 221 can also be any value other than those mentioned above, as long as the ratio of the minimum radial width L2 of the second support portion 222 to the maximum radial width L1 of the first support portion 221 is 0.85-0.95. By making the ratio of the minimum radial width L2 of the second support portion 222 to the maximum radial width L1 of the first support portion 221 0.85-0.95, the elastic support member 22 can maintain a large contact area with the first chamber 1 and the second main body 21 while possessing nonlinear stiffness. This helps to reduce the unit volume load of the elastic support member 22 and extend its service life. Combination Figure 1 , Figure 2 and Figure 3 As shown, in one possible implementation, the wire diameter of the elastic support member 22 gradually increases from the first support portion 221 to the second support portion 222. That is, the wire diameter of the elastic support member 22 gradually decreases from the second support portion 222 to the first support portion 221. Illustratively, the wire diameter can be... Figure 3 The diameter of the circular cross-section at any point of the elastic support 22 shown can represent the thickness of the elastic support 22. Along the direction from the second chamber 2 to the first chamber 1, from the first second support portion 222 to the first support portion 221 located between the two second support portions 222, the diameter of the elastic support 22 gradually decreases; along the direction from the second chamber 2 to the first chamber 1, from the first support portion 221 to the second support portion 222 away from the second main body 21, the diameter of the elastic support 22 gradually increases. By making the diameter of the elastic support 22 smaller in the middle, the elastic coefficient of the elastic support 22 is smaller in the middle. When the screening equipment 100 starts working, the first support portion 221 located in the middle of the elastic support 22 can deform first and provide low-stiffness support, achieving low-amplitude vibration of the first chamber 1. This helps to disperse the stress of the first chamber 1 onto the elastic support 22, avoiding stress concentration on the elastic support 22 and thus reducing its service life.
[0026] Combination Figure 1 , Figure 2 and Figure 3 As shown, in one possible implementation, the number of effective elastic coils in the first support portion 221 and the second support portion 222 is 6-9, that is, the number of deformable elastic coils in the elastic support member 22 is 6-9, and the effective number of coils in the elastic support member 22 is 5-8. The effective number of coils is the elastic group that can provide amplitude variation. This ensures that the elastic support member 22 has a sufficient upper limit of stiffness while the size of the elastic support member 22 is not too large, thus not occupying too much volume in the screening equipment 100.
[0027] Combination Figure 1 , Figure 2 and Figure 3 As shown, in one possible implementation, the ratio of the pitch between any two adjacent effective elastic coils of the elastic support member 22 to the radial width of the first support portion 221 is 1.15-2.19, or the ratio of the pitch between any two adjacent effective elastic coils of the elastic support member 22 to the radial width of the second support portion 222 is 1.15-2.19. This ratio can be equivalently expressed using the helix angle. Through conversion, the helix angle of the elastic support member 22 can be obtained as 20°-35°. When the helix angle is 20°-35°, that is, the ratio of the pitch between any two adjacent effective elastic coils of the elastic support 22 to the radial width of the first support portion 221 is 1.15-2.19, or the ratio of the pitch between any two adjacent effective elastic coils of the elastic support 22 to the radial width of the second support portion 222 is 1.15-2.19, the elastic support 22 can simultaneously possess moderate axial stiffness and good radial stability. A helix angle of 20°-35° allows the elastic support 22 to arrange a reasonable number of effective coils within a given axial space, thereby optimizing the spring's load-bearing capacity and stroke, and contributing to a more uniform stress distribution when the spring is under load.
[0028] Combination Figure 1 , Figure 2 and Figure 3As shown, in one possible implementation, any two adjacent effective elastic coils of the first support portion 221 have a first pitch H1, and any two adjacent effective elastic coils of the second support portion 222 have a second pitch H2, where the first pitch H1 is greater than the second pitch H2. By making the first pitch H1 of the first support portion 221 located in the middle of the elastic support member 22 larger, the initial stiffness provided by the elastic support member 22 is smaller, which can provide good buffering and allow the first support portion 221 to deform uniformly and delay yielding, thereby improving the stress concentration problem in the middle of the elastic support member 22. By making the second pitch H2 of the second support portions 222 located at both ends of the elastic support member 22 smaller, the ultimate stiffness of the elastic support member 22 is improved, preventing the elastic support member 22 from being overloaded due to strong stress.
[0029] Figure 4 This is a side view of a screening device 100 provided in another embodiment of this application. Figure 5 This is a top view of the screening device 100 provided in the embodiments of this application, combined with... Figure 1 , Figure 4 and Figure 5 As shown, in one possible implementation, the first chamber 1 includes a first body 11, a screen 14, and an eccentric member 13. The first body 11 has a screening chamber 111, and the screen 14 and the eccentric member 13 are located in the screening chamber 111. The screen 14 is used for screening materials. The second chamber 2 also includes a vibrating member 23. The second body 21 has a receiving cavity 211, and the vibrating member 23 is located in the receiving cavity 211. Schematic, the vibrating member 23 can be a motor. The first mounting surface 112 of the first main body 11 facing the second main body 21 has a first through hole 1121, and the second mounting surface 212 of the second main body 21 facing the first main body 11 has a second through hole 2121. The first through hole 1121 and the second through hole 2121 are arranged opposite to each other. The first through hole 1121 and the second through hole 2121 are both symmetrically arranged about the center line of the screening chamber 111. The center line of the screening chamber 111 is along the direction from the first main body 11 to the second main body 21, that is, the first through hole 1121 and the second through hole 2121 are both symmetrically arranged about the vertical center line of the screening chamber 111. The vibrating element 23 is connected to the eccentric element 13 through the first through hole 1121 and the second through hole 2121 in sequence. The eccentric element 13 is movably connected to the screen 14. The vibrating element 23 is used to drive the eccentric element 13 to output excitation force of different amplitudes to the screen 14, so as to realize the screening of materials with different characteristics. At least two elastic supports 22 are connected between the second body 21 and the first body 11 around the second through hole 2121. By arranging at least two elastic supports 22 around the second through hole 2121 located at the center of the second mounting surface 212 of the second body 21, it is beneficial to uniformly distribute the excitation force and ultimately achieve a good screening effect.
[0030] Combination Figure 1 , Figure 4 and Figure 5 As shown, in one possible implementation, the first chamber 1 further includes a discharge pipe 12, which protrudes from the peripheral sidewall 113 of the first main body 11. The screening chamber 111 communicates with the outside through the discharge pipe 12. The number of elastic supports 22 is at least three. The number of elastic supports 22 disposed on the side of the first mounting surface 112 adjacent to the discharge pipe 12 is greater than the number of elastic supports 22 disposed on the side of the first mounting surface 112 away from the discharge pipe 12. For example, the first mounting surface 112 may have two partial surfaces of equal area. For instance, if the number of elastic supports 22 is three, two elastic supports 22 may be disposed on the partial surface adjacent to the discharge pipe 12, and one elastic support 22 may be disposed on the partial surface away from the discharge pipe 12. The discharge pipe 12 is provided on the peripheral side wall 113 of the first main body 11, causing the center of gravity of the first bin body 1 to be biased towards the peripheral side wall 113 on the side where the discharge pipe 12 is provided. By setting more elastic support members 22 on the local surface of the first mounting surface 112 on the side where the center of gravity is biased, it is beneficial to balance the force on each elastic support member 22, avoid stress concentration on the elastic support member 22, and ultimately extend the service life of the screening equipment 100 while achieving a good screening effect.
[0031] Combination Figure 1 , Figure 4 and Figure 5As shown, in one possible implementation, the number of elastic supports 22 is odd, and multiple elastic supports 22 are evenly distributed on the first mounting surface 112. For example, the number of elastic supports 22 is three, and the included angle between any two elastic supports 22 is 120°, that is, three elastic supports 22 are evenly distributed on the first mounting surface 112. Two elastic supports 22 can be provided on a partial surface of the first mounting surface 112 adjacent to the discharge pipe 12, and one elastic support 22 can be provided on a partial surface of the first mounting surface 112 away from the discharge pipe 12. In another possible implementation, the number of elastic supports 22 is five, and the included angle between any two elastic supports 22 is 72°, that is, five elastic supports 22 are evenly distributed on the first mounting surface 112. Three elastic supports 22 can be provided on a partial surface of the first mounting surface 112 adjacent to the discharge pipe 12, and two elastic supports 22 can be provided on a partial surface of the first mounting surface 112 away from the discharge pipe 12. All of the above measures help to balance the force on each elastic support 22, avoid stress concentration in the elastic support 22, and ultimately extend the service life of the screening equipment 100 while achieving good screening results. It should be noted that the above implementation is merely an example, and the number of elastic support 22 is not specifically limited. The number of elastic support 22 can be 5, 7, 9, 11, etc., as long as the conditions for balancing the force on each elastic support 22 and avoiding stress concentration are met.
[0032] Combination Figure 1 , Figure 4 and Figure 5 As shown, in one possible implementation, the number of elastic supports 22 is even, and the multiple elastic supports 22 are non-uniformly distributed on the first mounting surface 112. For example, the number of elastic supports 22 is four. Three elastic supports 22 can be provided on a partial surface of the first mounting surface 112 adjacent to the discharge pipe 12, and one elastic support 22 can be provided on a partial surface of the first mounting surface 112 away from the discharge pipe 12. The included angle between any two adjacent elastic supports 22 can be 60° or 120°, that is, the four elastic supports 22 are non-uniformly distributed on the first mounting surface 112. It should be noted that the above implementation is only an example, and the number of elastic supports 22 is not specifically limited. The number of elastic supports 22 can be 4, 6, 8, 10, 12, etc., as long as the conditions of balancing the force on each elastic support 22 and avoiding stress concentration problems in the elastic supports 22 can be met.
[0033] Combination Figure 1 , Figure 4 and Figure 5As shown, in one possible implementation, the discharge pipe 12 includes a first discharge pipe 12a and a second discharge pipe 12b. Along the direction from the first main body 11 towards the second main body 21, the first discharge pipe 12a and the second discharge pipe 12b can be respectively arranged at different levels on the peripheral sidewall 113. That is, along the direction from the first main body 11 towards the second main body 21, the distance between the first discharge pipe 12a and the second mounting surface 212 of the second main body 21 is not equal to the distance between the second discharge pipe 12b and the second mounting surface 212 of the second main body 21. This is beneficial for simultaneously screening different materials and discharging them separately, thus improving the screening efficiency of the screening equipment 100. Multiple elastic support members 22 are non-uniformly distributed on the first mounting surface 112, and the interval angle between any two adjacent elastic support members 22 is unique, meaning that the interval angle between any two adjacent elastic support members 22 is different from the interval angle between any other two adjacent elastic support members 22. The angle between any two adjacent elastic support members 22 on the side of the first mounting surface 112 adjacent to the first discharge pipe 12a is smaller than the angle between any two adjacent elastic support members 22 on the side of the first mounting surface 112 away from the first discharge pipe 12a. That is, the elastic support members 22 on the side of the first mounting surface 112 adjacent to the first discharge pipe 12a are more densely distributed, while the elastic support members 22 on the side of the first mounting surface 112 away from the first discharge pipe 12a are more dispersed. Similarly, the angle between any two adjacent elastic support members 22 on the side of the first mounting surface 112 adjacent to the second discharge pipe 12b is smaller than the angle between any two adjacent elastic support members 22 on the side of the first mounting surface 112 away from the second discharge pipe 12b. That is, the elastic support members 22 on the side of the first mounting surface 112 adjacent to the second discharge pipe 12b are more densely distributed, while the elastic support members 22 on the side of the first mounting surface 112 away from the second discharge pipe 12b are more dispersed. All of the above are conducive to balancing the force on each elastic support 22, avoiding stress concentration in the elastic support 22, and ultimately extending the service life of the screening equipment 100 while achieving good screening effect.
[0034] Combination Figure 1 , Figure 4 and Figure 5As shown above, the force on the elastic support 22 can be adjusted by changing the number and spacing angle of the elastic support 22. It should be noted that, in this embodiment, multiple elastic support 22s with different characteristics can also be arranged between the first body 11 and the second body 21, such as the radial width change rate, pitch, wire diameter, and helix angle described in the previous embodiments. By symmetrically or asymmetrically arranging multiple elastic support 22s with different characteristics between the first body 11 and the second body 21, the force on each elastic support 22 can be balanced, avoiding stress concentration problems in the elastic support 22, ultimately extending the service life of the screening equipment 100 while achieving good screening results.
[0035] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.
Claims
1. A screening device, characterized in that, include: The first compartment is used for screening and outputting materials; The second chamber, used to support and vibrate the first chamber, includes an elastic support member and a main body, the main body and the first chamber being connected by the elastic support member; at least two of the elastic support members are respectively disposed at opposite ends of the side of the main body facing the first chamber, and the radial width of the elastic support member gradually changes.
2. The screening equipment according to claim 1, characterized in that, The elastic support includes a first support portion and two second support portions. The main body, one second support portion, the first support portion, the other second support portion, and the first compartment are connected in sequence. From the first support portion to the second support portion, the radial width of the elastic support gradually decreases, and the radial width at the transition between the first support portion and the second support portion is equal.
3. The screening equipment according to claim 2, characterized in that, From the first support portion to the second support portion, the wire diameter of the elastic support gradually increases, and the wire diameter at the transition between the first support portion and the second support portion is equal.
4. The screening equipment according to claim 2, characterized in that, The ratio of the minimum radial width of the second support portion to the maximum radial width of the first support portion is 0.85-0.
95.
5. The screening equipment according to any one of claims 2-4, characterized in that, The number of effective elastic coils in the first support portion and the second support portion is 6-9.
6. The screening equipment according to claim 5, characterized in that, The ratio of the pitch between any two adjacent effective elastic rings of the elastic support to the radial width of the first support is 1.15-2.19, or the ratio of the pitch between any two adjacent effective elastic rings of the elastic support to the radial width of the second support is 1.15-2.
19.
7. The screening equipment according to claim 5, characterized in that, The first support portion has a first pitch between any two adjacent effective elastic coils, and the second support portion has a second pitch between any two adjacent effective elastic coils, wherein the first pitch is greater than the second pitch.
8. The screening equipment according to claim 1, characterized in that, The main body is a second main body. The first chamber includes a first main body, a screen, and an eccentric member. The first main body has a screening chamber, and the screen and the eccentric member are located in the screening chamber. The second chamber also includes a vibrating member. The second main body has a receiving cavity, and the vibrating member is located in the receiving cavity. The first mounting surface of the first main body facing the second main body has a first through hole, and the second mounting surface of the second main body facing the first main body has a second through hole. The first through hole and the second through hole are arranged opposite to each other. The vibrating member is connected to the eccentric member in sequence through the first through hole and the second through hole. The eccentric member is movably connected to the screen. At least two elastic support members are connected between the second main body and the first main body around the second through hole.
9. The screening equipment according to claim 8, characterized in that, The first chamber also includes a discharge pipe, which protrudes from the peripheral sidewall of the first main body, and the screening chamber is connected to the outside through the discharge pipe; the number of elastic support members is at least three, and the number of elastic support members disposed on the side of the first mounting surface adjacent to the discharge pipe is greater than the number of elastic support members disposed on the side of the first mounting surface away from the discharge pipe.
10. The screening equipment according to claim 9, characterized in that, The interval angle between any two adjacent elastic support members is unique. The interval angle between any two adjacent elastic support members located on the side of the first mounting surface adjacent to the discharge pipe is smaller than the interval angle between any two adjacent elastic support members located on the side of the first mounting surface away from the discharge pipe.