Automatic feeding bin for vehicle urea production equipment

Abstract

This invention relates to the field of material feeding technology and proposes an automatic feeding bin for automotive urea production equipment. The bin includes a conveying mechanism with multiple scraping mechanisms evenly distributed inside. An adjusting mechanism is fixedly installed at the lower rear end of the conveying mechanism, an adjusting rack is fixedly connected to the upper inner rear side of the conveying mechanism, an adjusting chute is fixedly connected to the upper inner front side of the conveying mechanism, and an intermittent rack is slidably connected to the right inner rear side of the conveying mechanism. Through the cooperation of the scraping mechanisms and the intermittent rack, the scraping mechanism intermittently pushes the raw material powder stored in the storage tank as it scrapes the material, thus preventing bridging and clumping of the raw material powder in the lower opening of the storage tank. Furthermore, the cooperation between the adjusting mechanism and the scraping mechanism prevents adaptive bridging of the urea raw material powder at the lower opening of the storage tank due to a fixed frequency of force, further improving the reliability of anti-bridging.

Description

Technical Field

[0001] This invention relates to the field of material feeding technology, and in particular to an automatic feeding bin for automotive urea production equipment. Background Technology

[0002] As a key consumable in diesel vehicle exhaust treatment systems, automotive urea requires stringent standards for the continuity and uniformity of raw material supply during its production process. In automated automotive urea production lines, the automatic feeding hopper is the core equipment connecting raw material storage and the synthesis reaction. It must accurately and stably deliver urea powder to the reaction unit to ensure the accuracy of the proportions and the efficiency of the subsequent synthesis reaction. In existing technologies, automatic feeding hoppers for automotive urea production generally adopt a conveyor belt structure. Driven by a driving component, the conveyor belt scrapes and transports the raw material powder into the reaction chamber, thereby achieving automated and continuous raw material feeding and meeting the basic requirements for large-scale automotive urea production.

[0003] However, existing automated feeding hoppers for automotive urea production have significant drawbacks in practical applications. Urea raw material powder is characterized by its fine particles and tendency to agglomerate. During feeding, the powder easily forms bridging and clumping at the lower opening of the storage tank due to gravity compression and inter-particle adsorption. Once bridging occurs, the powder cannot fall smoothly, leading to significant fluctuations in the feed rate and intermittent supply to the reaction unit. This uneven feeding not only reduces the conversion rate of the automotive urea synthesis reaction, affecting the purity and performance of the final product, but can also cause blockages inside the feeding hopper due to raw material accumulation, increasing the frequency of equipment downtime for maintenance and hindering the overall operating efficiency of the automotive urea production line. Summary of the Invention

[0004] In view of the problems existing in the prior art, the purpose of this invention is to provide an automatic feeding bin for automotive urea production equipment to solve the problems mentioned in the background art.

[0005] To solve the above problems, the present invention adopts the following technical solution: an automatic feeding bin for automotive urea production equipment, including a conveying mechanism, wherein multiple scraping mechanisms are evenly distributed inside the conveying mechanism, an adjusting mechanism is fixedly installed at the lower rear end of the conveying mechanism, an adjusting rack is fixedly connected to the upper inner rear side of the conveying mechanism, an adjusting slide groove is fixedly connected to the upper inner front side of the conveying mechanism, and an intermittent rack is slidably connected to the right inner rear side of the conveying mechanism. The scraping mechanism includes multiple fixed chambers, and a sliding plate is slidably connected inside each fixed chamber. The sliding plate is located inside the sliding plate. A rotating seat is fixedly connected to the middle of each side. A bidirectional lead screw is rotatably connected inside the fixed chamber. A drive block is threaded to the front and rear ends of the bidirectional lead screw. Limit blocks are provided on the front and rear sides of the drive block. A connecting rod is rotatably connected to the side of the drive block near the sliding plate. The end of the connecting rod away from the drive block is rotatably connected to the inside of the rotating seat. A locking component is fixedly installed at the front end of each bidirectional lead screw. A limit tooth ring is fixedly connected to the rear end of each bidirectional lead screw. An elastic limit seat is provided on the outer periphery of each limit tooth ring. A gear is fixedly connected to the outer periphery of each elastic limit seat.

[0006] Preferably, the conveying mechanism includes a housing, inside which a conveyor belt is disposed. A drive roller is disposed at the inner left end of the conveyor belt, and a driven roller is disposed at the inner right end of the conveyor belt. A support frame is fixedly connected to the lower middle part of the housing, and a three-phase motor is fixedly connected to the upper middle part of the support frame. A drive pulley is fixedly connected to the rear drive end of the three-phase motor, and a driven pulley is connected to the drive pulley via a transmission belt. A protective cover is fixedly connected to the rear left end of the housing, a discharge port is fixedly connected to the left end of the housing, a storage trough is fixedly connected to the right end of the housing, and a controller is fixedly connected to the upper front end of the support frame.

[0007] Preferably, the controller is electrically connected to the three-phase motor via wires, and the driven pulley is internally fixedly connected to the rear end of the drive roller.

[0008] Preferably, the inner circumference of the limiting block is fixedly connected to the outer circumference of the front and rear ends of the bidirectional lead screw, and the outer circumference of the fixing chamber is fixedly connected to the inside of the housing.

[0009] Preferably, the locking assembly includes multiple ratchet wheels, each ratchet wheel being engaged with a pawl, each pawl being rotatably connected to a limit shaft on the side closest to the ratchet wheel, each pawl being rotatably connected to a rotating shaft on the side furthest from the ratchet wheel, each pawl being fixedly connected to a spring at its upper end, and each spring being fixedly connected to a fixing block at its upper end.

[0010] Preferably, the middle part of each ratchet is fixedly connected to the front end of the bidirectional lead screw, and the rear end of each rotating shaft and the fixed block is fixedly connected to the front middle part of the fixed chamber.

[0011] Preferably, the adjustment mechanism includes a mounting cover, an adjustment seat is slidably connected inside the mounting cover, a sliding seat is slidably connected to the lower left side of the adjustment seat, a limit ring is fixedly connected to the inner rear side of the mounting cover, a non-circular toothed ring is rotatably connected inside the limit ring, a gear two is meshed with the non-circular toothed ring, a rotating shaft two is rotatably connected inside the gear two, a gear three is meshed with the gear three, a rotating plate is fixedly connected to the rear end of the gear three, and a limit shaft two is rotatably connected inside the upper opening of the rotating plate.

[0012] Preferably, the upper end of the adjusting seat is slidably connected to the opening at the rear right end of the housing, and the front end of the sliding seat is fixedly connected to the rear right end of the housing.

[0013] Preferably, the upper end of the intermittent rack is fixedly connected to the upper left end of the adjusting seat, and the rear end of the second rotating shaft is fixedly connected to the right end of the inner rear side of the mounting cover.

[0014] Preferably, the front end of the gear three is fixedly connected to the rear end of the driven roller, and the outer periphery of the limiting shaft two is slidably connected to the lower opening of the adjusting seat.

[0015] The automatic feeding hopper for automotive urea production equipment provided by this invention has the following advantages:

[0016] 1. By coordinating the scraping mechanism and the intermittent rack, the scraping mechanism can intermittently push up the raw material powder stored inside the storage tank when scraping the material through the storage tank. This avoids the problem of bridging and clumping of the raw material powder in the lower opening of the storage tank, and fundamentally avoids the fluctuation of the feeding amount caused by uneven falling of the raw material powder. This ensures that the raw material supply to the urea reaction unit is continuous and stable, and provides a reliable guarantee for the efficient conduct of the subsequent urea synthesis reaction.

[0017] 2. By intermittently rotating the bidirectional lead screw and driving the connecting rod to intermittently rise, the ratchet is simultaneously driven to rotate. Through the cooperation of the pawl, rotating shaft one, and spring, the bidirectional lead screw is locked during the intermittent adjustment process. The sliding plate will not retract into the fixed bin due to the pressure of the powder raw material, ensuring the effect of pushing the raw material powder upward. At the same time, by setting limit blocks at the front and rear ends of the bidirectional lead screw, the drive block is limited. When the sliding plate rises to the lower side of the lower opening of the storage tank and stops rising, the elastic plate built into the elastic limit seat disengages from the limit gear ring, allowing the elastic limit seat and gear one to rotate freely. This ensures the safety of equipment operation and ensures that the amount of raw material between each two scraping mechanisms is basically the same, thereby ensuring the uniformity of raw material powder conveying.

[0018] 3. By coordinating the adjustment mechanism and the scraping mechanism, the initial heights of adjacent sliding plates are different, which in turn creates staggered differences in the upward amplitude and timing of the raw material powder. This achieves more thorough disturbance of the raw material accumulation layer in the storage tank, avoids the formation of new bridging risks due to uneven force on local raw materials, and further enhances the anti-bridging effect.

[0019] 4. By coordinating the adjustment mechanism and the scraping mechanism, adaptive bridging of urea raw material powder at the lower opening of the storage tank due to the force of a fixed frequency is avoided, further improving the reliability of anti-bridging. This enables the raw material accumulation layer in different areas of the storage tank to be disturbed without dead angles, ensuring the uniformity of the raw material powder falling, and providing strong support for the conversion rate and product quality stability of subsequent reactions. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This application provides a front-view perspective stereoscopic diagram of an automatic feeding hopper for automotive urea production equipment.

[0022] Figure 2 A rear-view perspective view of an automatic feeding hopper for automotive urea production equipment provided in this application;

[0023] Figure 3 One of the rear-view partial sectional exploded perspective views of the automatic feeding hopper of a vehicle urea production equipment provided in this application;

[0024] Figure 4 The second of the rear-view partial sectional exploded three-dimensional schematic diagrams of an automatic feeding hopper for automotive urea production equipment provided in this application;

[0025] Figure 5 The third of the rear-view exploded three-dimensional schematic diagrams of the automatic feeding hopper of a vehicle urea production equipment provided in this application;

[0026] Figure 6 This application provides a partial cross-sectional perspective view of an automatic feeding hopper for automotive urea production equipment.

[0027] Figure 7 This application provides a front-view exploded perspective view of the scraping mechanism of an automatic feeding hopper for automotive urea production equipment.

[0028] Figure 8This is a rear-view exploded perspective view of the scraping mechanism of the automatic feeding hopper of a vehicle urea production equipment provided in this application.

[0029] In the diagram: 1. Conveying mechanism; 11. Housing; 12. Conveyor belt; 13. Drive roller; 14. Driven roller; 15. Support frame; 16. Three-phase motor; 17. Drive pulley; 18. Transmission belt; 19. Driven pulley; 110. Protective cover; 111. Discharge port; 112. Storage trough; 113. Controller; 2. Scraping mechanism; 21. Fixed bin; 22. Sliding plate; 23. Bidirectional lead screw; 24. Drive block; 25. Limit block; 26. Connecting rod; 27. Rotary seat; 28. 29. Ratchet; 210. Limiting shaft one; 211. Rotating shaft one; 212. Spring; 213. Fixing block; 214. Limiting gear ring; 215. Elastic limiting seat; 216. Gear one; 3. Adjusting mechanism; 31. Mounting cover; 32. Adjusting seat; 33. Sliding seat; 34. Limiting ring; 35. Irregular gear ring; 36. Gear two; 37. Rotating shaft two; 38. Gear three; 39. Rotating plate; 310. Limiting shaft two; 4. Adjusting rack; 5. Adjusting slide; 6. Intermittent rack. Detailed Implementation

[0030] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0031] like Figures 1-8 As shown, this embodiment proposes an automatic feeding bin for automotive urea production equipment, including a conveying mechanism 1. Multiple scraping mechanisms 2 are evenly distributed inside the conveying mechanism 1. An adjusting mechanism 3 is fixedly installed at the lower rear end of the conveying mechanism 1. An adjusting rack 4 is fixedly connected to the upper inner rear side of the conveying mechanism 1. An adjusting chute 5 is fixedly connected to the upper inner front side of the conveying mechanism 1. An intermittent rack 6 is slidably connected to the right inner rear side of the conveying mechanism 1. The scraping mechanism 2 includes multiple fixed chambers 21. Sliding plates 22 are slidably connected inside each fixed chamber 21. A rotating seat 27 is fixedly connected to the middle of one side of each sliding plate 22. The fixed chamber 21 is rotatably connected to a bidirectional lead screw 23. The front and rear ends of the bidirectional lead screw 23 are threadedly connected to a drive block 24. The front and rear sides of the drive block 24 are provided with limit blocks 25. The side of the drive block 24 near the sliding plate 22 is rotatably connected to a connecting rod 26. The end of the connecting rod 26 away from the drive block 24 is rotatably connected to the inside of the rotating seat 27. The front end of the bidirectional lead screw 23 is fixedly installed with a locking component. The rear end of the bidirectional lead screw 23 is fixedly connected to a limit tooth ring 214. The outer periphery of the limit tooth ring 214 is provided with an elastic limit seat 215. The outer periphery of the elastic limit seat 215 is fixedly connected with a gear 216.

[0032] In this embodiment, the conveying mechanism 1 includes a housing 11, a conveyor belt 12 is provided inside the housing 11, a drive roller 13 is provided at the inner left end of the conveyor belt 12, a driven roller 14 is provided at the inner right end of the conveyor belt 12, a support frame 15 is fixedly connected to the lower middle part of the housing 11, a three-phase motor 16 is fixedly connected to the upper middle part of the support frame 15, a drive pulley 17 is fixedly connected to the rear drive end of the three-phase motor 16, a driven pulley 19 is connected to the drive pulley 17 through a transmission belt 18, a protective cover 110 is fixedly connected to the rear left end of the housing 11, a discharge port 111 is fixedly connected inside the left end of the housing 11, a storage trough 112 is fixedly connected inside the right end of the housing 11, and a controller 113 is fixedly connected to the upper front end of the support frame 15.

[0033] In this embodiment, the controller 113 is electrically connected to the three-phase motor 16 via wires, and the driven pulley 19 is internally fixedly connected to the rear end of the drive roller 13.

[0034] In this embodiment, the inner periphery of the limiting block 25 is fixedly connected to the outer periphery of the front and rear ends of the bidirectional lead screw 23, and the outer periphery of the fixing chamber 21 is fixedly connected to the inside of the housing 11.

[0035] Specifically, when it is necessary to transport the raw material powder for urea production, the raw material powder is poured into the storage tank 112. The controller 113 starts the three-phase motor 16, which drives the driven pulley 19 to rotate through the drive pulley 17 and the transmission belt 18. In turn, through the cooperation of the drive roller 13 and the driven roller 14, the conveyor belt 12 rotates inside the housing 11. In cooperation with the scraping mechanism 2 evenly distributed inside the conveyor belt 12, the raw material powder is gradually transported to the discharge port 111 and then to the reaction device for mixing and reaction. When one of the scraping mechanisms 2 moves to the lower end of the storage tank 112 to scrape and transport the material upward, the rear gear 216 intermittently meshes with the intermittent rack 6, thereby intermittently driving the bidirectional screw 23 to rotate through the elastic limit seat 215 and the limit ring 214. The connecting rod 26 is intermittently driven to rise by the drive block 24 and the limit block 25, which ultimately causes the sliding plate 22 to rise intermittently inside the fixed chamber 21. This allows the fixed chamber 21 and the sliding plate 22 to intermittently push up the raw material powder stored inside the storage tank 112 when scraping and conveying material through the lower opening of the storage tank 112. Through the cooperation of the scraping mechanism 2 and the intermittent rack 6, the raw material powder stored inside the storage tank 112 can be intermittently pushed up when the scraping mechanism 2 scrapes material through the storage tank 112. This avoids the problem of bridging and clumping of raw material powder in the lower opening of the storage tank 112, and fundamentally avoids the fluctuation of the feeding amount caused by uneven falling of raw material powder. This ensures that the raw material supply to the urea reaction unit is continuous and stable, providing a reliable guarantee for the efficient subsequent urea synthesis reaction.

[0036] In this embodiment, the locking assembly includes multiple ratchet wheels 28, each ratchet wheel 28 being engaged with a pawl 29. The side of each pawl 29 closest to the ratchet wheel 28 is rotatably connected to a limit shaft 210, and the side of each pawl 29 furthest from the ratchet wheel 28 is rotatably connected to a rotating shaft 211. A spring 212 is fixedly connected to the upper end of each pawl 29, and a fixing block 213 is fixedly connected to the upper end of each spring 212.

[0037] In this embodiment, the middle part of the ratchet 28 is fixedly connected to the front end of the bidirectional lead screw 23, and the rear ends of the rotating shaft 211 and the fixing block 213 are fixedly connected to the front middle part of the fixing chamber 21.

[0038] Specifically, when the bidirectional lead screw 23 rotates intermittently, driving the connecting rod 26 to rise intermittently, it simultaneously drives the ratchet 28 to rotate. Through the cooperation of the pawl 29, the rotating shaft 211, and the spring 212, the bidirectional lead screw 23 is locked during the intermittent adjustment process. The sliding plate 22 will not be retracted into the fixed chamber 21 due to the pressure of the powder raw material, ensuring the effect of lifting the raw material powder. At the same time, by setting limit blocks 25 at the front and rear ends of the bidirectional lead screw 23, the drive block 24 is limited. When the sliding plate 22 rises to the lower side of the lower opening of the storage tank 112 and stops rising, the elastic plate inside the elastic limit seat 215 disengages from the limit tooth ring 214, causing the elastic limit seat 215 and the gear 216 to rotate freely. This ensures the safety of equipment operation and ensures that the amount of raw material between each pair of scraping mechanisms 2 is basically the same, thereby ensuring the uniformity of raw material powder conveying.

[0039] In this embodiment, the adjustment mechanism 3 includes a mounting cover 31, an adjustment seat 32 is slidably connected inside the mounting cover 31, a sliding seat 33 is slidably connected to the lower left side of the adjustment seat 32, a limit ring 34 is fixedly connected to the inner rear side of the mounting cover 31, a non-circular toothed ring 35 is rotatably connected inside the limit ring 34, a gear 36 is meshed with the non-circular toothed ring 35, a rotating shaft 37 is rotatably connected inside the gear 36, a gear 38 is meshed with the gear 36, a rotating plate 39 is fixedly connected to the rear end of the gear 38, and a limit shaft 310 is rotatably connected inside the upper opening of the rotating plate 39.

[0040] In this embodiment, the upper end of the adjusting seat 32 is slidably connected to the opening at the rear right end of the housing 11, and the front end of the sliding seat 33 is fixedly connected to the rear right end of the housing 11.

[0041] In this embodiment, the upper end of the intermittent rack 6 is fixedly connected to the upper left end of the adjusting seat 32, and the rear end of the rotating shaft 37 is fixedly connected to the right end of the inner rear side of the mounting cover 31.

[0042] In this embodiment, the front end of gear 38 is fixedly connected to the rear end of driven roller 14, and the outer periphery of limiting shaft 2 310 is slidably connected to the lower opening of adjusting seat 32.

[0043] Specifically, when the scraping mechanism 2 moves to the lower left end of the housing 11, the limiting shaft 210 first enters the interior of the adjusting groove 5, causing the pawl 29 to disengage from the ratchet 28. Then, the gear 216 meshes with the adjusting rack 4, driving the bidirectional lead screw 23 to rotate, which in turn drives the sliding plate 22 to retract into the fixed chamber 21, facilitating the next upward operation of the raw material powder in the lower opening of the storage tank 112. When the driven roller 14 rotates, it synchronously drives the gear 38 to rotate, which in turn drives the irregular toothed ring 35 to rotate through the gear 26. When the scraping mechanism 2 rotates around the driven roller 14, it intermittently drives the adjacent gear 216 to rotate, making the initial height of the adjacent sliding plates 22 different, thus creating staggered differences in the upward amplitude and timing of the raw material powder. Through the cooperation of the adjusting mechanism 3 and the scraping mechanism 2, the raw material accumulation layer in the storage tank 112 is more fully disturbed, avoiding localized... The uniform force applied to the raw material creates a new potential for bridging, further enhancing the anti-bridging effect. Simultaneously, gear 38 drives the rotating plate 39 to rotate the limiting shaft 310 around the center of the driven roller 14, thereby causing the adjusting seat 32 to slide back and forth inside the mounting cover 31. This, in turn, causes the intermittent rack 6 to slide back and forth on the right side of the inner rear side of the housing 11, resulting in random changes in the meshing position of the intermittent rack 6 and gear 216. Consequently, the position of the sliding plate 22 changes, both upward and intermittent. Through the cooperation of the adjusting mechanism 3 and the scraping mechanism 2, adaptive bridging is avoided at the lower opening of the storage tank 112 due to the force applied at a fixed frequency, further improving the reliability of anti-bridging. This allows for the formation of a seamless disturbance of the raw material accumulation layer in different areas of the storage tank 112, ensuring the uniformity of the raw material powder's fall and providing strong support for the conversion rate and product quality stability of subsequent reactions.

[0044] Working principle: First, when it is necessary to transport the raw material powder for urea production, the raw material powder is poured into the storage tank 112. The controller 113 starts the three-phase motor 16, which drives the driven pulley 19 to rotate through the drive pulley 17 and the transmission belt 18. Then, through the cooperation of the drive roller 13 and the driven roller 14, the conveyor belt 12 rotates inside the housing 11. In cooperation with the scraping mechanism 2 evenly distributed inside the conveyor belt 12, the raw material powder is gradually transported to the discharge port 111, and then transported to the reaction device for mixing and reaction. When one of the scraping mechanisms 2 moves to the lower end of the storage tank 112 to scrape and transport the material upward, the rear gear 216 intermittently meshes with the intermittent rack 6, thereby controlling the movement of the elastic limit seat 215 and the limit tooth. Ring 214 intermittently drives the bidirectional lead screw 23 to rotate, which in turn drives the connecting rod 26 to rise intermittently through the drive block 24 and the limit block 25. This ultimately causes the sliding plate 22 to rise intermittently inside the fixed chamber 21. When the fixed chamber 21 and the sliding plate 22 are scraped and conveyed through the lower opening of the storage trough 112, they can intermittently push up the raw material powder stored inside the storage trough 112. Through the cooperation of the scraping mechanism 2 and the intermittent rack 6, the raw material powder stored inside the storage trough 112 is intermittently pushed up when the scraping mechanism 2 scrapes through the storage trough 112. This avoids bridging and clumping of the raw material powder in the lower opening of the storage trough 112, fundamentally preventing fluctuations in the feeding amount caused by uneven falling of the raw material powder, and ensuring the material is delivered to the urea reaction. The continuous and stable supply of raw materials to the device provides a reliable guarantee for the efficient subsequent urea synthesis reaction. When the bidirectional screw 23 rotates intermittently, driving the connecting rod 26 to rise intermittently, it simultaneously drives the ratchet 28 to rotate. Through the cooperation of the pawl 29, the rotating shaft 211, and the spring 212, the bidirectional screw 23 is locked during the intermittent adjustment process. The sliding plate 22 will not be retracted into the fixed chamber 21 due to the pressure of the powder raw material, ensuring the effect of pushing the raw material powder upward. At the same time, by setting limit blocks 25 at the front and rear ends of the bidirectional screw 23, the driving block 24 is limited. When the sliding plate 22 rises to the lower side of the lower opening of the storage tank 112 and stops rising, the elastic plate built into the elastic limit seat 215 and the limit tooth ring 21 are in contact with the limit. 4. Disengagement allows the elastic limit seat 215 and gear 216 to idle, ensuring both the safety of equipment operation and the consistency of raw material quantity between each pair of scraping mechanisms 2, thus guaranteeing the uniformity of raw material powder conveying. When the scraping mechanism 2 moves to the lower left side of the housing 11, the limit shaft 210 first enters the interior of the adjusting groove 5, causing the pawl 29 to disengage from the ratchet 28. Subsequently, gear 216 engages with the adjusting rack 4, driving the bidirectional lead screw 23 to rotate, which in turn drives the sliding plate 22 to retract into the fixed chamber 21, facilitating the next upward lifting operation of the raw material powder in the lower opening of the storage tank 112. When the driven roller 14 rotates, it synchronously drives gear 38 to rotate, which in turn drives the irregular toothed ring 35 to rotate via gear 2 36.When the scraping mechanism 2 rotates around the driven roller 14, it intermittently drives the adjacent gear 216 to rotate, resulting in different initial heights of the adjacent sliding plates 22. This causes the upward amplitude and timing of the raw material powder to vary. Through the cooperation of the adjusting mechanism 3 and the scraping mechanism 2, the raw material accumulation layer in the storage tank 112 is more fully disturbed, avoiding the formation of new bridging risks due to uneven force on local raw materials, and further enhancing the anti-bridging effect. At the same time, the gear 38 drives the limiting shaft 310 to rotate around the center of the driven roller 14 through the rotating plate 39, thereby causing the adjusting seat 32 to slide back and forth inside the mounting cover 31. This causes the intermittent rack 6 to slide back and forth on the right side of the inner rear side of the housing 11, resulting in random changes in the meshing position of the intermittent rack 6 and gear 216. This, in turn, causes changes in the top and intermittent positions of the sliding plate 22. Through the cooperation of the adjusting mechanism 3 and the scraping mechanism 2, adaptive bridging of the urea raw material powder at the lower opening of the storage tank 112 due to a fixed frequency of force is avoided, further improving the reliability of anti-bridging. This allows for seamless disturbance of the raw material accumulation layer in different areas of the storage tank 112, ensuring the uniformity of the raw material powder's fall and providing strong support for the conversion rate and product quality stability of subsequent reactions.

[0045] The above embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. Although the invention has been described in detail with reference to the embodiments, those skilled in the art should understand that various combinations, modifications, or equivalent substitutions of the technical solutions of the invention do not depart from the spirit and scope of the invention and should be covered within the scope of the claims of the invention.

Claims

1. An automatic feeding bin for automotive urea production equipment, comprising a conveying mechanism (1), characterized in that, The conveying mechanism (1) has multiple scraping mechanisms (2) evenly distributed inside. An adjusting mechanism (3) is fixedly installed at the lower rear end of the conveying mechanism (1). An adjusting rack (4) is fixedly connected to the upper inner rear side of the conveying mechanism (1). An adjusting slide groove (5) is fixedly connected to the upper inner front side of the conveying mechanism (1). An intermittent rack (6) is slidably connected to the right inner rear side of the conveying mechanism (1). The scraping mechanism (2) includes multiple fixed chambers (21). A sliding plate (22) is slidably connected inside each fixed chamber (21). A rotating seat (27) is fixedly connected to the middle of one side of each sliding plate (22). A bidirectional rotating seat is rotatably connected inside each fixed chamber (21). The lead screw (23) is threaded to both the front and rear ends of the bidirectional lead screw (23) with drive blocks (24). Limit blocks (25) are provided on both the front and rear sides of the drive blocks (24). A connecting rod (26) is rotatably connected to the side of the drive blocks (24) near the sliding plate (22). The end of the connecting rod (26) away from the drive blocks (24) is rotatably connected to the inside of the rotating seat (27). A locking assembly is fixedly installed at the front end of the bidirectional lead screw (23). A limit tooth ring (214) is fixedly connected to the rear end of the bidirectional lead screw (23). An elastic limit seat (215) is provided on the outer periphery of the limit tooth ring (214). A gear (216) is fixedly connected to the outer periphery of the elastic limit seat (215). The conveying mechanism (1) includes a housing (11), a conveyor belt (12) is provided inside the housing (11), a drive roller (13) is provided at the inner left end of the conveyor belt (12), a driven roller (14) is provided at the inner right end of the conveyor belt (12), a support frame (15) is fixedly connected to the lower middle part of the housing (11), a three-phase motor (16) is fixedly connected to the upper middle part of the support frame (15), a drive pulley (17) is fixedly connected to the rear drive end of the three-phase motor (16), the drive pulley (17) is connected to a driven pulley (19) through a transmission belt (18), a protective cover (110) is fixedly connected to the rear left end of the housing (11), a discharge port (111) is fixedly connected inside the left end of the housing (11), a storage trough (112) is fixedly connected inside the right end of the housing (11), and a controller (113) is fixedly connected to the upper front end of the support frame (15). The locking assembly includes multiple ratchet wheels (28), each ratchet wheel (28) being engaged with a pawl (29). The side of each pawl (29) closest to the ratchet wheel (28) is rotatably connected to a limit shaft (210), and the side of each pawl (29) furthest from the ratchet wheel (28) is rotatably connected to a rotating shaft (211). The upper end of each pawl (29) is fixedly connected to a spring (212), and the upper end of each spring (212) is fixedly connected to a fixing block (213). The middle part of each ratchet wheel (28) is fixedly connected to the front end of a two-way lead screw (23), and the rear ends of the rotating shaft (211) and the fixing block (213) are fixedly connected to the front middle of the fixing chamber (21). The adjusting mechanism (3) includes a mounting cover (31), an adjusting seat (32) is slidably connected inside the mounting cover (31), a sliding seat (33) is slidably connected to the lower left side of the adjusting seat (32), a limiting ring (34) is fixedly connected to the inner rear side of the mounting cover (31), a special-shaped toothed ring (35) is rotatably connected inside the limiting ring (34), a gear two (36) is meshed with the special-shaped toothed ring (35), a rotating shaft two (37) is rotatably connected inside the gear two (36), and a gear two (36) is meshed with a rotating shaft two (37). Gear 3 (38), the rear end of which is fixedly connected to a rotating plate (39), the upper opening of the rotating plate (39) is rotatably connected to a limiting shaft 2 (310), the upper end of the intermittent rack (6) is fixedly connected to the upper left end of the adjusting seat (32), the rear end of the rotating shaft 2 (37) is fixedly connected to the right end of the inner rear side of the mounting cover (31), the front end of the gear 3 (38) is fixedly connected to the rear end of the driven roller (14), and the outer periphery of the limiting shaft 2 (310) is slidably connected to the lower opening of the adjusting seat (32).

2. The automatic feeding hopper for automotive urea production equipment according to claim 1, characterized in that, The controller (113) is electrically connected to the three-phase motor (16) via wires, and the driven pulley (19) is internally fixedly connected to the rear end of the drive roller (13).

3. The automatic feeding hopper for automotive urea production equipment according to claim 2, characterized in that, The inner circumference of the limiting block (25) is fixedly connected to the front and rear outer circumferences of the bidirectional lead screw (23), and the outer circumference of the fixed chamber (21) is fixedly connected to the inside of the shell (11).

4. The automatic feeding hopper for automotive urea production equipment according to claim 3, characterized in that, The upper end of the adjusting seat (32) is slidably connected to the opening at the rear right end of the housing (11), and the front end of the sliding seat (33) is fixedly connected to the rear right end of the housing (11).

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