Feed rotary screen structure with shock absorption and noise reduction functions

Abstract

The utility model relates to feed screening technical field, and disclose a kind of feed rotary screen structure with shock-absorbing and noise reduction function, including base, the base top is provided with shock-absorbing and noise reduction mechanism, the shock-absorbing and noise reduction mechanism front and rear sides are provided with support mechanism, the shock-absorbing and noise reduction mechanism includes damping assembly and screening subassembly, the damping assembly is set to base top, the screening subassembly component is set to damping assembly top, when using, the shock-absorbing and noise reduction mechanism of being set, the combination of air bag and spring forms efficient buffer system, when vibration is generated during screening process, air bag can absorb part of impact force by the compression and expansion of internal gas, spring further offsets vibration energy by the elastic deformation of itself, greatly reduce the vibration amplitude of equipment whole, the sliding fit of support column and support frame, and the sliding connection of support platform inside noise reduction box, provide stable guide for the vibration of equipment.

Description

Technical Field

[0001] This utility model relates to the field of feed screening technology, specifically a feed rotary screen structure with shock absorption and noise reduction functions. Background Technology

[0002] In the feed production and processing process, the rotary feed screen is a key piece of equipment for classifying and screening feed particles. It uses rotational motion to continuously tumble and separate the feed on the screen surface, thereby achieving the purpose of grading by particle size. However, traditional rotary feed screens generally suffer from two major problems during operation: When the equipment is working, the motor drives the screen body to rotate. The collision between the screen body and the material, as well as the mechanical vibration of the screen body itself, will generate a large impact force, resulting in a large overall vibration amplitude of the equipment. This vibration will not only affect the screening accuracy, but also aggravate the wear of various parts of the equipment, shorten the service life of the equipment, and may even damage the ground structure of the surrounding production environment.

[0003] During vibration, friction and collision between various components of the equipment (such as motors, screen bodies, and support structures), as well as the tumbling and impact of materials within the screen box, will generate continuous high-frequency noise. Long-term exposure to such a noise environment will not only affect the hearing health of operators but also disrupt the normal work order of surrounding production areas, which does not meet the requirements of modern industrial production for environmental protection and occupational health.

[0004] According to the description in the patent announcement of a rotary vibrating grading screen with shock absorption and noise reduction (authorization announcement number: CN219766009U), the rotary vibrating grading screen with shock absorption and noise reduction includes "screen boat, shock absorption mechanism" etc., to achieve the noise reduction effect.

[0005] Regarding the above description, the applicant believes the following issues exist: This rotary vibrating grading screen with vibration reduction and noise reduction utilizes a screen boat and vibration damping mechanism to achieve noise reduction. When this grading screen is in use, the support plate at the other end of the screen boat drives the vibration damping spring to extend and retract through the support rod, thereby damping the impact force generated by the rotation of the screen boat. However, noise is generated by friction between various components of the equipment, such as the motor, screen body, and support structure. Relying solely on this method for noise reduction is not only ineffective but also fails to reduce the overall vibration amplitude of the equipment. Therefore, this grading screen needs to be improved. Utility Model Content

[0006] The purpose of this invention is to provide a feed rotary screen structure with shock absorption and noise reduction functions to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a feed rotary screen structure with shock absorption and noise reduction function, including a base, a shock absorption and noise reduction mechanism is provided on the top of the base, and a support mechanism is provided on the front and rear sides of the shock absorption and noise reduction mechanism; The vibration damping and noise reduction mechanism includes a vibration damping component and a screening component. The vibration damping component is disposed on the top of the base, and the screening component is disposed on the top of the vibration damping component. The vibration damping assembly includes a noise reduction box, which is fixedly connected to the top of the base. A protective door is rotatably connected to the front of the noise reduction box. A limit frame is fixedly connected to the bottom inner side of the noise reduction box. An airbag is provided at the bottom inner side of the noise reduction box. A support column is fixedly connected to the bottom inner side of the noise reduction box. A support frame is slidably connected to the periphery of the support column. The support frame is located on the top of the airbag. A support platform is fixedly connected to the top of the support frame. The support platform is slidably connected to the inner side of the noise reduction box. A spring is sleeved around the periphery of the support column. A servo motor is fixedly connected to the top left side of the support platform. A rotating rod is fixedly connected to the top of the servo motor. A rotating disk is fixedly connected to the top of the rotating rod. A connecting shaft is fixedly connected to the top of the rotating disk. A fixing frame is fixedly connected to the top right side of the support platform.

[0008] Preferably, the limiting frame is concave, the airbag is located inside the limiting frame, the top of the airbag is in contact with the bottom of the support frame, and the support frame is slidably connected to the inside of the noise reduction box. The top of the support platform is provided with a noise reduction pad, so that the airbag can reduce the vibration and noise generated when the support platform is working.

[0009] Preferably, the top of the spring is fixedly connected to the bottom of the support frame, and the bottom of the spring is fixedly connected to the bottom of the noise reduction box. The spring is made of alloy spring steel, which makes it easy to buffer the vibration of the support frame when the support platform is working.

[0010] Preferably, the screening component includes a screen box, which is rotatably connected to the periphery of the connecting shaft. A screening plate is fixedly connected to the inner side of the screen box. A feeding rack is fixedly connected to the right side of the screen box. A protective cover is slidably connected to the top of the screen box. A fixed shaft is threadedly connected inside the protective cover. Connecting seats are fixedly connected to the front and rear sides of the right end of the screen box. A support shaft is fixedly connected to the bottom of the connecting seats. The support shaft is slidably connected to the fixed frame.

[0011] Preferably, the left side of the feeding rack is in contact with the right side of the screen box and the screening plate, and the inner side of the feeding rack is separated. The fixed shaft passes through the inside of the screen box, which facilitates the separate feeding of materials moving to the right on the screen box and the screening plate through the feeding rack.

[0012] Preferably, the support mechanism includes a fixed base, which is fixedly connected to the front side of the support platform. A first concave frame is fixedly connected to the top of the fixed base. A connecting arm is rotatably connected to the inner side of the first concave frame. A second concave frame is rotatably connected to the outer periphery of the top of the connecting arm. A fixed frame is fixedly connected to the top of the second concave frame. The fixed frame is fixedly connected to the top of the base.

[0013] Preferably, the fixed frame, fixed seat, first concave frame, connecting arm and second concave frame are provided in four sets, and are symmetrically distributed on the front and rear sides of the support platform, so as to ensure the stability of the support platform during operation by setting four sets.

[0014] Compared with the prior art, this utility model provides a feed rotary screen structure with shock absorption and noise reduction functions, which has the following beneficial effects: This feed rotary screen structure, equipped with vibration and noise reduction functions, utilizes a combination of air bladders and springs to form a highly efficient buffer system. When vibration occurs during screening, the air bladders absorb some of the impact force through the compression and expansion of their internal gas, while the springs further offset the vibration energy through their elastic deformation, significantly reducing the overall vibration amplitude of the equipment. The sliding fit between the support column and the support frame, as well as the sliding connection of the support platform inside the noise reduction box, provide stable guidance for the equipment's vibration, preventing deviation or swaying during vibration and ensuring smooth screening operations. The noise reduction pad on top of the support platform absorbs... The noise generated by the servo motor and other equipment during operation is partially contained by the concave shape of the limit frame, which effectively limits the airbag and prevents it from shifting under force, ensuring its normal operation. The spring is made of alloy spring steel, which has high strength and elastic limit and can maintain good performance under long-term load, enhancing the stability and reliability of the shock absorption components. The servo motor drives the screen box to rotate through the rotating rod, rotating disk and connecting shaft, so that the feed is fully turned and screened in the screen box, improving the screening efficiency. The screening plate on the inside of the screen box can effectively grade and screen the feed.

[0015] This feed rotary screen structure with shock absorption and noise reduction functions, through the symmetrical distribution of the support mechanism, fixed frame, fixed seat, first concave frame, connecting arm and second concave frame, provides stable support to the support platform from the front and rear sides, further improving the overall stability of the support platform and screen box during operation, and avoiding the impact of equipment shaking on screening accuracy. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the vibration damping and noise reduction mechanism. Figure 3 This is a schematic diagram of the vibration damping component structure; Figure 4 This is a cross-sectional view of the noise reduction box. Figure 5 This is a schematic diagram of the internal structure of the noise reduction box; Figure 6 This is a schematic diagram of the top structure of the support frame; Figure 7 A schematic diagram of the component structure for screening; Figure 8 This is a schematic diagram of the supporting structure.

[0017] In the diagram: 1. Base; 2. Vibration damping and noise reduction mechanism; 3. Support mechanism; 21. Vibration damping component; 22. Screening component; 211. Noise reduction box; 212. Protective door; 213. Servo motor; 214. Support platform; 215. Limiting frame; 216. Airbag; 217. Support column; 218. Spring; 219. Support frame; 2191. Rotating rod; 2192. Rotating disk; 2193. Connecting shaft; 2194. Fixing frame; 221. Screen box; 222. Screening plate; 223. Protective cover; 224. Fixing shaft; 225. Unloading rack; 226. Connecting seat; 227. Supporting shaft; 31. Fixing frame; 32. Fixing seat; 33. First concave frame; 34. Connecting arm; 35. Second concave frame. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0020] This utility model provides the following technical solution: Example 1: Please refer to Figure 1-8 This utility model provides a technical solution: a feed rotary screen structure with shock absorption and noise reduction function, including a base 1, a shock absorption and noise reduction mechanism 2 is provided on the top of the base 1, and a support mechanism 3 is provided on the front and rear sides of the shock absorption and noise reduction mechanism 2. The vibration damping and noise reduction mechanism 2 includes a vibration damping component 21 and a screening component 22. The vibration damping component 21 is disposed on the top of the base 1, and the screening component 22 is disposed on the top of the vibration damping component 21. The shock absorption assembly 21 includes a noise reduction box 211, which is fixedly connected to the top of the base 1. A protective door 212 is rotatably connected to the front of the noise reduction box 211. A limit frame 215 is fixedly connected to the bottom inner side of the noise reduction box 211. An airbag 216 is provided at the bottom inner side of the noise reduction box 211. A support column 217 is fixedly connected to the bottom inner side of the noise reduction box 211. A support frame 219 is slidably connected to the periphery of the support column 217. The support frame 219 is located on the top of the airbag 216. The top of the support frame 219 is fixed. A support platform 214 is fixedly connected to the support platform 214, which is slidably connected to the inside of the noise reduction box 211. A spring 218 is sleeved around the support column 217. A servo motor 213 is fixedly connected to the top left of the support platform 214. A rotating rod 2191 is fixedly connected to the top of the servo motor 213. A rotating disk 2192 is fixedly connected to the top of the rotating rod 2191. A connecting shaft 2193 is fixedly connected to the top of the rotating disk 2192. A fixed frame 2194 is fixedly connected to the top right of the support platform 214.

[0021] The limiting frame 215 is concave in shape, and the airbag 216 is located inside the limiting frame 215. The top of the airbag 216 is in contact with the bottom of the support frame 219, and the support frame 219 is slidably connected to the inside of the noise reduction box 211. The top of the support platform 214 is provided with a noise reduction pad, so that the vibration generated by the support platform 214 during operation can be reduced and noise reduced by the airbag 216.

[0022] The top of the spring 218 is fixedly connected to the bottom of the support frame 219, and the bottom of the spring 218 is fixedly connected to the bottom of the noise reduction box 211. The spring 218 is made of alloy spring steel, which makes it easy to buffer the vibration of the support frame 219 when the support platform 214 is working.

[0023] Please see Figure 1-8 The present invention provides a technical solution: the screening component 22 includes a screen box 221, which is rotatably connected to the periphery of the connecting shaft 2193. A screening plate 222 is fixedly connected to the inner side of the screen box 221. A feeding rack 225 is fixedly connected to the right side of the screen box 221. A protective cover 223 is slidably connected to the top of the screen box 221. A fixed shaft 224 is threadedly connected inside the protective cover 223. Connecting seats 226 are fixedly connected to the front and rear sides of the right end of the screen box 221. A support shaft 227 is fixedly connected to the bottom of the connecting seat 226. The support shaft 227 is slidably connected to the fixed frame 2194.

[0024] The left side of the feeding rack 225 is in contact with the right side of the screen box 221 and the screening plate 222 respectively, and the inner side of the feeding rack 225 is separated. The fixed shaft 224 passes through the inside of the screen box 221, which makes it easy to separate and feed the materials moving to the right on the screen box 221 and the screening plate 222 through the feeding rack 225.

[0025] Example 2: Please refer to Figure 1-8 Furthermore, based on Embodiment 1, the support mechanism 3 further includes a fixed base 32, which is fixedly connected to the front side of the support platform 214. A first concave frame 33 is fixedly connected to the top of the fixed base 32. A connecting arm 34 is rotatably connected to the inner side of the first concave frame 33. A second concave frame 35 is rotatably connected to the outer periphery of the top of the connecting arm 34. A fixed frame 31 is fixedly connected to the top of the second concave frame 35. The fixed frame 31 is fixedly connected to the top of the base 1.

[0026] The fixed frame 31, fixed base 32, first concave frame 33, connecting arm 34 and second concave frame 35 are provided in four sets and are symmetrically distributed on the front and rear sides of the support platform 214. By setting four sets, the stability of the support platform 214 during operation can be guaranteed.

[0027] In actual operation, when this device is used and the feed needs to be screened, firstly, the protective cover 223 is slidably connected to the top of the screen box 221, and the protective cover 223 is fixed by the fixed shaft 224. At this time, the feed can be put into the screen box 221 through the top of the protective cover 223. At the same time, the collection device is placed on the right side of the feeding rack 225, and two devices need to be placed. The air bag 216 is inflated and placed at the bottom of the noise reduction box 211, inside the limit frame 215. The protective door 212 is fixed by the external fixing device. The servo motor 213 drives the screen box 221 to rotate via the rotating rod 2191, rotating disk 2192, and connecting shaft 2193, ensuring thorough agitation and screening of the feed within the screen box 221, thus improving screening efficiency. The screening plate 222 inside the screen box 221 effectively grades and screens the feed. During screening, the screen box 221 drives the support shaft 227 to slide within the fixed frame 2194. When vibration occurs during screening, it is transmitted to the support platform 214, causing the support platform 214 to drive the support frame 219. The outer periphery of the support column 217 slides, causing the support frame 219 to compress the spring 218 and the air bag 216. The air bag 216 can absorb part of the impact force through the compression and expansion of the internal gas, while the spring 218 further offsets the vibration energy by means of its own elastic deformation, which greatly reduces the overall vibration amplitude of the equipment. The sliding cooperation between the support column 217 and the support frame 219, as well as the sliding connection of the support platform 214 inside the noise reduction box 211, provide stable guidance for the vibration of the equipment, avoid deviation or shaking during the vibration process, and ensure the smooth operation of the screening work. The noise reduction pad on the top of the support platform 214 can absorb some of the noise generated by the servo motor 213 and other equipment during operation. The limit frame 215 is concave in shape, which effectively limits the airbag 216 and prevents the airbag 216 from shifting when subjected to force, thus ensuring the normal operation of the airbag 216. The spring 218 is made of alloy spring 218 steel, which has high strength and elastic limit, and can maintain good performance under long-term load, thus enhancing the stability and reliability of the shock absorption work. The symmetrical arrangement of the fixed frame 31, fixed base 32, first concave frame 33, connecting arm 34 and second concave frame 35 provides stable support for the support platform 214 from both the front and rear sides, further improving the overall stability of the support platform 214 and the screen box 221 during operation and avoiding the impact of equipment shaking on screening accuracy.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A feed rotary screen structure with shock absorption and noise reduction function, comprising a base (1), characterized in that: The base (1) is provided with a shock absorption and noise reduction mechanism (2) on the top, and the shock absorption and noise reduction mechanism (2) is provided with a support mechanism (3) on the front and rear sides. The vibration damping and noise reduction mechanism (2) includes a vibration damping component (21) and a screening component (22). The vibration damping component (21) is disposed on the top of the base (1), and the screening component (22) is disposed on the top of the vibration damping component (21). The shock absorption assembly (21) includes a noise reduction box (211), which is fixedly connected to the top of the base (1). A protective door (212) is rotatably connected to the front side of the noise reduction box (211). A limit frame (215) is fixedly connected to the bottom inside the noise reduction box (211). An airbag (216) is provided at the bottom inside the noise reduction box (211). A support column (217) is fixedly connected to the bottom inside the noise reduction box (211). A support frame (219) is slidably connected to the periphery of the support column (217). The support frame (219) is located on the top of the airbag (216). A support platform (214) is fixedly connected to the top of the support frame (219). The support platform (214) is slidably connected to the inside of the noise reduction box (211). A spring (218) is sleeved around the support column (217). A servo motor (213) is fixedly connected to the top left of the support platform (214). A rotating rod (2191) is fixedly connected to the top of the servo motor (213). A rotating disk (2192) is fixedly connected to the top of the rotating rod (2191). A connecting shaft (2193) is fixedly connected to the top of the rotating disk (2192). A fixed frame (2194) is fixedly connected to the top right of the support platform (214).

2. The feed rotary screen structure with vibration damping and noise reduction function according to claim 1, characterized in that: The limiting frame (215) is concave in shape, the airbag (216) is located inside the limiting frame (215), the top of the airbag (216) is in contact with the bottom of the support frame (219), and the support frame (219) is slidably connected to the inside of the noise reduction box (211). The top of the support platform (214) is provided with a noise reduction pad.

3. The feed rotary screen structure with vibration damping and noise reduction function according to claim 1, characterized in that: The top of the spring (218) is fixedly connected to the bottom of the support frame (219), and the bottom of the spring (218) is fixedly connected to the bottom of the noise reduction box (211). The spring (218) is made of alloy spring (218) steel.

4. The feed rotary screen structure with vibration damping and noise reduction function according to claim 1, characterized in that: The screening component (22) includes a screen box (221), which is rotatably connected to the periphery of the connecting shaft (2193). A screening plate (222) is fixedly connected to the inner side of the screen box (221). A feeding rack (225) is fixedly connected to the right side of the screen box (221). A protective cover (223) is slidably connected to the top of the screen box (221). A fixed shaft (224) is threadedly connected inside the protective cover (223). Connecting seats (226) are fixedly connected to the front and rear sides of the right end of the screen box (221). A support shaft (227) is fixedly connected to the bottom of the connecting seat (226). The support shaft (227) is slidably connected inside the fixed frame (2194).

5. The feed rotary screen structure with vibration damping and noise reduction function according to claim 4, characterized in that: The left side of the feeding rack (225) is in contact with the right side of the screen box (221) and the screening plate (222), and the inner side of the feeding rack (225) is separated. The fixed shaft (224) passes through the inside of the screen box (221).

6. The feed rotary screen structure with vibration damping and noise reduction function according to claim 1, characterized in that: The support mechanism (3) includes a fixed seat (32), which is fixedly connected to the front side of the support platform (214). A first concave frame (33) is fixedly connected to the top of the fixed seat (32). A connecting arm (34) is rotatably connected to the inner side of the first concave frame (33). A second concave frame (35) is rotatably connected to the outer periphery of the top of the connecting arm (34). A fixed frame (31) is fixedly connected to the top of the second concave frame (35). The fixed frame (31) is fixedly connected to the top of the base (1).

7. A feed rotary screen structure with vibration damping and noise reduction function according to claim 6, characterized in that: The fixed frame (31), fixed seat (32), first concave frame (33), connecting arm (34) and second concave frame (35) are provided in four sets and are symmetrically distributed on the front and rear sides of the support platform (214).

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