Efficient environment-friendly cylinder precleaner

Abstract

The utility model relates to the technical field of cylinder precleaner fixing, in particular to an efficient and environment-friendly cylinder precleaner which comprises a box body and a feeding port. The screening assembly is rotationally connected into the box body, the damping assembly is installed on the box body, a feeding port is formed in the left side of the top end of the box body, the screening assembly comprises a first screening cylinder, the first screening cylinder is arranged in the box body, and the outer side of the first screening cylinder is rotationally connected with a second screening cylinder; the first screening barrel and the second screening barrel are connected through a rotating motor and a rotating rod, and a guide plate is arranged at the bottom end of the second screening barrel and arranged in the box body. Under the cooperation of the first screening drum and the second screening drum, screening treatment can be carried out in the two screening drums at the same time, the material treatment speed is greatly increased, the first screening drum and the second screening drum rotate reversely, the contact probability of materials and screening holes is greatly increased, small impurities can be discharged through the screening holes more easily, and therefore the screening precision is remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of cylindrical primary cleaning screen fixing technology, and in particular to a high-efficiency and environmentally friendly cylindrical primary cleaning screen. Background Technology

[0002] In many industries such as grain, feed, and agricultural product processing, the quality of raw materials is directly related to the quality of the final product and the smoothness of the production process. Harvested raw grains are often mixed with various impurities, which not only wear down pipes and conveyor belts during transportation, but also damage valuable machinery and equipment in subsequent fine processing stages such as grinding and milling, shortening the service life of equipment and increasing maintenance costs. As a key piece of equipment in the pretreatment process, the cylindrical primary cleaning screen has played a crucial role in removing large particulate impurities in the past due to its unique cylindrical structure.

[0003] Most existing cylindrical primary cleaning screens have only one screening device during use. The contact method between the material and the screen holes is relatively simple. Some fine impurities may not be able to pass through the screen holes due to insufficient exposure, and large particles may not be accurately intercepted due to their simple movement trajectory. In addition, the flow speed is slow, the material stays in the equipment for a long time, and the overall processing capacity is limited, which seriously affects the production efficiency and hinders the large-scale development of the industry. At the same time, there is no mechanical force generated by reverse rotation to clean the screen holes, which greatly increases the probability of screen hole blockage, increases equipment maintenance costs, and reduces the actual service life of the equipment.

[0004] Therefore, in view of the problem that most of the above-mentioned cylindrical primary cleaning screens are equipped with a screening device, the material stays in the equipment for a long time, the overall processing capacity is limited, and the production efficiency is seriously affected, a high-efficiency and environmentally friendly cylindrical primary cleaning screen can be designed. Utility Model Content

[0005] To overcome the problem that most cylindrical primary cleaning screens are equipped with a screening device, resulting in a long material residence time inside the equipment, limited overall processing capacity, and serious impact on production efficiency.

[0006] The technical solution of this utility model is as follows: a high-efficiency and environmentally friendly cylindrical primary cleaning screen, including a box body and a feed inlet; it also includes a screening component and a shock-absorbing component. The screening component is rotatably connected inside the box body, and the shock-absorbing component is installed on the box body. The feed inlet is provided on the left side of the top of the box body. The screening component includes a screening cylinder one, which is located inside the box body. A screening cylinder two is rotatably connected to the outside of the screening cylinder one, and the screening cylinder one and the screening cylinder two are connected by a rotating motor and a rotating rod. A guide plate is provided at the bottom of the screening cylinder two, and the guide plate is located inside the box body.

[0007] Preferably, the material is poured into the first sieve cylinder inside the box through the feed inlet. The rotating motor connecting the first and second sieve cylinders starts working, driving the first sieve cylinder to rotate slowly. At the same time, the second sieve cylinder rotates in the opposite direction to the first sieve cylinder. The raw material that has been preliminarily screened by the first sieve cylinder enters the second sieve cylinder. Due to the difference in the inner diameter of the screen holes in the first and second sieve cylinders and the opposite direction of rotation, the material is subjected to complex forces between the two sieve cylinders. Its tumbling and kneading become more intense, and the probability of contact with the screen holes increases significantly. This makes it easier for the fine impurities that could not be screened out in the first sieve cylinder to pass through the screen holes of the second sieve cylinder and be discharged.

[0008] Preferably, the output end of the guide plate is connected to a rotating rod, a pulley is sleeved on the outside of the rotating rod, and a drive belt is connected to the outside of the pulley.

[0009] Preferably, a second pulley is connected to the inner side of the upper end of the transmission belt, and a servo motor is connected to the right end of the second pulley, with the servo motor located on the left side wall of the housing.

[0010] Preferably, a discharge port baffle is hinged at the lower rear end of the box, and the discharge end of the guide plate is located at the rear end of the discharge port baffle.

[0011] Preferably, the shock absorption assembly includes a fixing block, which is installed on the left side wall of the housing, and threaded rods are installed at the four corners of the top of the fixing block.

[0012] Preferably, a shock-absorbing spring is sleeved on the outer side of the threaded rod, and a base plate is threaded to the top of the shock-absorbing spring, with the servo motor located at the top of the base plate.

[0013] Preferably, mounting brackets are installed on both the left and right sides of the top of the box, and a locking block is provided at the middle of the bottom of the mounting bracket.

[0014] Preferably, the bottom of the block is connected to a connecting rod, and rollers are provided at both the front and rear ends of the connecting rod.

[0015] The beneficial effects of this utility model are as follows: With the cooperation of sieve cylinder one and sieve cylinder two, screening can be carried out simultaneously in two sieve cylinders, which greatly speeds up the material processing speed. Moreover, the sieve cylinder one and sieve cylinder two rotate in opposite directions, which greatly increases the probability of material contact with the sieve holes, making it easier for fine impurities to pass through the sieve holes and for large particles to be intercepted more efficiently, thereby significantly improving the screening accuracy. In addition, it can play a certain self-cleaning role for the sieve holes, shaking off some impurities that have been embedded in the sieve holes, keeping the sieve holes unobstructed, ensuring that the equipment can operate stably for a long time, reducing the frequency of downtime for cleaning the sieve holes, and improving the efficiency of equipment use. Attached Figure Description

[0016] Figure 1The diagram shown is a three-dimensional structural schematic of the first part of the high-efficiency and environmentally friendly cylindrical primary cleaning screen of this utility model.

[0017] Figure 2 The diagram shown is a three-dimensional cross-sectional view of the high-efficiency and environmentally friendly cylindrical primary cleaning screen of this utility model.

[0018] Figure 3 The diagram shown is a three-dimensional structural schematic of the second part of the high-efficiency and environmentally friendly cylindrical primary cleaning screen of this utility model.

[0019] Figure 4 The diagram shown is a three-dimensional structural schematic of the third layer of the high-efficiency and environmentally friendly cylindrical primary cleaning screen of this utility model.

[0020] Figure 5 This invention showcases a high-efficiency and environmentally friendly cylindrical primary cleaning screen. Figure 1 Schematic diagram of the three-dimensional structure of part A in the middle.

[0021] Explanation of reference numerals in the attached drawings: 1. Box body; 2. Feed inlet; 301. Screening cylinder one; 302. Screening cylinder two; 303. Guide plate; 304. Rotating rod; 305. Belt pulley one; 306. Transmission belt; 307. Belt pulley two; 308. Servo motor; 309. Discharge port baffle; 401. Fixing block; 402. Threaded rod; 403. Shock-absorbing spring; 404. Base plate; 405. Mounting bracket; 406. Clamping block; 407. Connecting rod; 408. Roller. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please see Figures 1-5 This utility model provides an embodiment of a high-efficiency and environmentally friendly cylindrical primary cleaning screen, including a housing 1 and a feed inlet 2; it also includes a screening component and a shock-absorbing component. The screening component is rotatably connected inside the housing 1, and the shock-absorbing component is installed on the housing 1. The feed inlet 2 is provided on the left side of the top of the housing 1. The screening component includes a first screening cylinder 301, which is located inside the housing 1. A second screening cylinder 302 is rotatably connected to the outside of the first screening cylinder 301. The first screening cylinder 301 and the second screening cylinder 302 are connected by a rotating motor and a rotating rod. A guide plate 303 is provided at the bottom of the second screening cylinder 302, and the guide plate 303 is located inside the housing 1.

[0024] Please see Figures 2-3In this embodiment, the output end of the guide plate 303 is connected to a rotating rod 304. A pulley 305 is sleeved on the outer side of the rotating rod 304, and a transmission belt 306 is driven to the outer side of the pulley 305. A pulley 307 is driven to the inner side of the upper end of the transmission belt 306. A servo motor 308 is connected to the right end of the pulley 307, and the servo motor 308 is located on the left side wall of the housing 1. A discharge port baffle 309 is hinged to the lower rear end of the housing 1, and the discharge end of the guide plate 303 is located at the rear end of the discharge port baffle 309. When the servo motor 308 is started, the pulley 307 rotates rapidly under the operation of the servo motor 308. Under the tight transmission connection of the transmission belt 306, the pulley 305 rotates synchronously, thereby driving the screening cylinder 30 2. The material rotates in the opposite direction to the first sieve cylinder 301. After preliminary screening by the first sieve cylinder 301, the material enters the second sieve cylinder 302. Due to the difference in the inner diameter of the screen holes between the first sieve cylinder 301 and the second sieve cylinder 302, and the opposite direction of rotation, the material is subjected to complex forces between the two sieve cylinders. The degree of tumbling and kneading becomes more intense, and the probability of contact with the screen holes increases significantly. This makes it easier for the fine impurities that could not be screened out in the first sieve cylinder 301 to pass through the screen holes of the second sieve cylinder 302 and be discharged. At the same time, large particles of impurities are intercepted more efficiently, thereby significantly improving the screening accuracy. The screened material falls naturally onto the guide plate 303 under the action of the screen holes. Because the guide plate 303 is installed at an angle, the material naturally slides to the baffle plate 309 at the discharge port. The baffle plate is opened to collect, retrieve and store the material.

[0025] Please see Figures 4-5 In this embodiment, the shock absorption assembly includes a fixing block 401, which is installed on the left side wall of the housing 1. Threaded rods 402 are installed at the four corners of the top of the fixing block 401. Shock-absorbing springs 403 are sleeved on the outer side of the threaded rods 402. The top of the shock-absorbing springs 403 is threadedly connected to a base plate 404, and the servo motor 308 is located on the top of the base plate 404. Mounting brackets 405 are installed on both the left and right sides of the top of the housing 1. A locking block 406 is located at the middle of the bottom of the mounting bracket 405. A connecting rod 407 is connected to the bottom of the locking block 406. Rollers 408 are provided at both the front and rear ends of the connecting rod 407. When the servo motor 308 is operating, the base plate 404 and the shock-absorbing springs 403 cooperate to play an important role in shock absorption. They can effectively reduce the vibration generated when the servo motor 308 is operating, making the motor operation more stable, reducing the noise during equipment operation, reducing the wear of various parts of the equipment caused by vibration, and extending the service life of the equipment.

[0026] During operation, the screening device is conveniently moved to the working area via rollers 408. Material is poured into the screening cylinder 301 inside the housing 1 through the feed inlet 2. At this time, the rotating motor connecting screening cylinder 301 and screening cylinder 302 starts working, driving screening cylinder 301 to rotate slowly. During the rotation of screening cylinder 301, the material tumbles and moves inside the cylinder, undergoing preliminary screening. Small impurities smaller than the screen holes of screening cylinder 301 pass through the screen holes first and fall off, while larger particles remain inside the cylinder. The servo motor 308 starts, and under its operation, pulley 307 rotates rapidly. With the tight transmission connection of the drive belt 306, pulley 305 rotates synchronously, thereby driving screening cylinder 302 to rotate in the opposite direction to screening cylinder 301. The raw material after preliminary screening by screening cylinder 301 enters screening cylinder 302. Due to the rotation of screening cylinders 301 and 302... The 302 screens have different inner diameters and rotate in opposite directions. The material is subjected to complex forces between the two screen cylinders, resulting in more intense tumbling and kneading. This significantly increases the likelihood of contact with the screen holes, making it easier for fine impurities that could not be screened out in the first screen cylinder 301 to pass through the screen holes of the second screen cylinder 302 and be discharged. At the same time, large particles are intercepted more efficiently, thus significantly improving the screening accuracy. The screened raw material falls naturally onto the guide plate 303 under the action of the screen holes. Because the guide plate 303 is installed at an angle, the raw material slides naturally to the baffle plate 309 at the discharge port. The baffle plate is opened to collect, retrieve, and store the material. While the servo motor 308 is operating, the base plate 404 and the shock-absorbing spring 403 work together to play an important role in shock absorption. They can effectively reduce the vibration generated by the servo motor 308 during operation, making the motor operation more stable, reducing the noise of the equipment during operation, reducing the wear of various parts of the equipment caused by vibration, and extending the service life of the equipment.

[0027] Through the above steps, the cooperation of screening cylinder one and screening cylinder two allows for simultaneous screening within both cylinders, accelerating the overall material flow rate and shortening the material residence time within the equipment. This effectively alleviates the problem of material accumulation during large-scale production. Furthermore, the counter-rotation of screening cylinder one and screening cylinder two significantly increases the probability of material contact with the screen holes, making it easier for fine impurities to pass through and discharge, while larger particles are intercepted more efficiently. This significantly improves screening accuracy and ensures more balanced overall equipment stress, reducing eccentric vibration caused by the rotation of a single screening cylinder, lowering noise during equipment operation, extending the service life of various components, ensuring stable equipment operation, and reducing maintenance costs. This addresses the problem that most cylindrical primary cleaning screens only have one screening device, resulting in long material residence times within the equipment, limited overall processing capacity, and severely impacting production efficiency.

Claims

1. A high-efficiency and environment-friendly cylinder primary cleaning screen, comprising a box body (1) and a feeding port (2); characterized in that: It also includes a screening assembly and a damping assembly, the inside of the box (1) is rotatably connected with the screening assembly, the box (1) is provided with the damping assembly, the left side of the top end of the box (1) is provided with a feeding port (2), the screening assembly comprises a screening cylinder one (301), the screening cylinder one (301) is arranged in the box (1), the outer side of the screening cylinder one (301) is rotatably connected with a screening cylinder two (302), and the screening cylinder one (301) and the screening cylinder two (302) are connected through a rotating motor and a rotating rod, the bottom end of the screening cylinder two (302) is provided with a guide plate (303), and the guide plate (303) is arranged in the box (1).

2. The high-efficiency environmentally friendly cylinder primary cleaning screen according to claim 1, characterized in that: The output end of the guide plate (303) is connected with a rotating rod (304), the outer side of the rotating rod (304) is sleeved with a belt pulley one (305), the outer side of the belt pulley one (305) is drivingly connected with a transmission belt (306).

3. The high-efficiency environmentally friendly cylindrical primary screen according to claim 2, characterized in that: The inner side of the upper end of the transmission belt (306) is drivingly connected with a belt pulley two (307), the right end of the belt pulley two (307) is connected with a servo motor (308), and the servo motor (308) is arranged on the left side wall of the box (1).

4. The high-efficiency environmentally friendly cylinder primary screen according to claim 1, characterized in that: The lower end of the rear end of the box (1) is hingedly connected with a discharge port baffle (309), and the discharge end of the guide plate (303) is arranged at the rear end of the discharge port baffle (309).

5. The high-efficiency, environmentally friendly cylinder cleaning screen of claim 1, wherein: The damping assembly comprises a fixed block (401), the fixed block (401) is installed on the left side wall of the box (1), and the threaded rods (402) are installed at the four corners of the top end of the fixed block (401).

6. The high-efficiency environmentally friendly cylinder primary screen according to claim 5, characterized in that: The outer side of the threaded rod (402) is sleeved with a damping spring (403), the top end of the damping spring (403) is threadedly connected with a bottom plate (404), and the servo motor (308) is arranged at the top end of the bottom plate (404).

7. The high-efficiency, environmentally friendly cylinder cleaning screen of claim 1, wherein: The left and right sides of the top end of the box (1) are both provided with a mounting bracket (405), and the middle position of the bottom end of the mounting bracket (405) is provided with a clamping block (406).

8. The high-efficiency environmentally friendly cylinder primary screen according to claim 7, characterized in that: The bottom end of the clamping block (406) is connected with a connecting rod (407), and the front and rear ends of the connecting rod (407) are both provided with a roller (408).

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