Raise-dust-proof straw crushing equipment matched with energy-saving motor

Abstract

The invention discloses dust-raising-preventing straw smashing equipment matched with an energy-saving motor, and relates to the technical field of straw treatment.The dust-raising-preventing straw smashing equipment comprises a tank body, a fixed cylinder is fixedly connected to the bottom of a storage tank, a rotating cylinder is rotatably connected to the interior of the fixed cylinder, and a hollow reciprocating lead screw is arranged in the rotating cylinder; a first fixing ring is fixedly connected to the bottom of the fixing cylinder, a first one-way bearing is fixedly connected to the interior of the first fixing ring, a first threaded ring is fixedly connected to the interior of the first one-way bearing, an upper grinding plate is fixedly connected to the outer side of the bottom end of the material guiding pipe, and empty grooves are formed in the two sides of the bottom of the upper grinding plate; two empty grooves are formed in the upper portion of the tank body, nozzles are fixedly connected into the two empty grooves, a fixing sleeve is fixedly connected into the tank body, a lower grinding plate is fixedly connected into the fixing sleeve, and two grinding blocks are arranged at the bottom of the lower grinding plate. According to the dust-raising-preventing straw smashing equipment matched with the energy-saving motor, material falling is conveniently controlled, residues are conveniently cleaned, and efficient and uniform smashing operation is achieved.

Description

Technical Field

[0001] This invention relates to the field of straw processing technology, specifically a dust-proof straw crushing device equipped with an energy-saving electric motor. Background Technology

[0002] More than half of the products of crop photosynthesis are found in crop straw. Straw is rich in nitrogen, phosphorus, potassium, calcium, magnesium, and organic matter, making it a versatile and renewable biological resource. Straw is also a type of roughage, high in crude fiber and containing lignin, which can be absorbed and utilized by livestock such as cattle and sheep. Subsequent processing of straw requires crushing to facilitate recycling, transportation, and livestock consumption.

[0003] The common process for processing straw as feed typically involves multiple steps, such as crushing, grinding, and mixing, each of which often requires different specialized equipment to complete in stages. This segmented processing method not only results in large equipment footprints and high energy consumption, but also easily generates a lot of dust during material transfer and processing, causing environmental pollution and material loss.

[0004] In the prior art, Chinese patent with authorization announcement number CN114210403A discloses a straw crushing device, including a crushing box. Two first rotating shafts are rotatably connected between the front and rear walls of the crushing box. Crushing rollers are fixedly connected to the outer walls of the first rotating shafts. A conveying cylinder is fixedly connected to the right wall of the crushing box. A connecting return port is opened on the right wall of the crushing box and the left wall of the conveying cylinder. A filter screen plate extending to the return port is hinged to the left wall of the crushing box.

[0005] When using the aforementioned equipment, materials tend to adhere to the tank walls or grinding surfaces, leading to poor discharge and uneven mixing, which reduces the overall efficiency and product quality. Furthermore, the collaborative operation of multiple devices complicates the process, increases labor costs, and limits overall processing efficiency, making it difficult to meet the demands of modern agriculture for the efficient utilization of straw resources. Summary of the Invention

[0006] The purpose of this invention is to provide a dust-proof straw crushing device equipped with an energy-saving electric motor, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a dust-proof straw crushing device equipped with an energy-saving electric motor, comprising a tank body, a storage tank fixedly connected to the top of the tank body, a dust cover fixedly connected to the top of the storage tank, a fixed cylinder fixedly connected to the bottom of the storage tank, a rotating cylinder rotatably connected inside the fixed cylinder, a hollow reciprocating screw screw disposed inside the rotating cylinder, a first fixed ring fixedly connected to the bottom of the fixed cylinder, a first one-way bearing fixedly connected inside the first fixed ring, a first threaded ring fixedly connected inside the first one-way bearing, and the hollow reciprocating screw screw… The rod passes through and connects to the first threaded ring. A support plate is fixedly connected to the bottom end of the hollow reciprocating screw. A guide tube is slidably connected to the bottom end of the hollow reciprocating screw. An upper grinding plate is fixedly connected to the outer side of the bottom end of the guide tube. Hollow grooves are opened on both sides of the bottom of the upper grinding plate. Spray nozzles are fixedly connected inside the two hollow grooves. A fixing sleeve is fixedly connected inside the tank. A lower grinding plate is fixedly connected inside the fixing sleeve. Two grinding blocks are provided at the bottom of the lower grinding plate. Through grooves are opened on both sides of the inside of the lower grinding plate. The two grinding blocks are respectively adapted to the two through grooves.

[0008] Preferably, the hollow reciprocating screw has limit grooves on both sides, and the rotating cylinder has limit plates integrally formed on both sides. The two limit plates are slidably connected to the two limit grooves and adapted to the two limit grooves. The limit plates limit and guide the limit grooves, thereby driving the hollow reciprocating screw to rotate.

[0009] Preferably, a guide gear ring is fixedly connected to the outer side of the rotating cylinder, a side plate is fixedly connected to one side of the fixed cylinder, a second forward and reverse motor is fixedly connected to the top of the side plate, a guide gear is fixedly connected to the output end of the second forward and reverse motor, the guide gear meshes with the guide gear ring, and the second forward and reverse motor drives the guide gear to rotate, which in turn drives the guide gear ring to rotate, thereby driving the rotating cylinder to rotate.

[0010] Preferably, support rods are slidably connected to both sides of the inner side of the support plate, and springs are sleeved on the outer sides of both support rods. The two ends of the springs are fixedly connected to the support plate and the upper grinding plate, respectively.

[0011] Preferably, an air guide rail is fixedly connected to the top of the upper grinding plate, and a rotating ring is slidably connected to the top of the air guide rail. Corrugated pipes are fixedly connected to both sides of the top of the rotating ring. Both corrugated pipes penetrate the side wall of the tank and are fixedly connected to the tank. Connecting pipes are fixedly connected to both sides of the bottom of the air guide rail. The two connecting pipes are respectively connected to two nozzles. When the air guide rail rotates, it can rotate relative to the rotating ring. At this time, the high-pressure gas entering the cavity between the rotating ring and the air guide rail from the corrugated pipe can be transmitted along the cavity to the connecting pipe and discharged outward from the connecting pipe.

[0012] Preferably, an extension tube is fixedly connected to the top of the hollow reciprocating screw, and a rotating ring is rotatably connected to the top of the extension tube. Multiple scraper rods are fixedly connected to the inner side of the top of the extension tube, and all of the scraper rods are in contact with the inner wall of the storage tank. An elastic cloth is fixedly connected inside the storage tank, and the rotating ring is fixedly connected to the inner side of the elastic cloth. When the extension tube is rotated by the hollow reciprocating screw, the scraper rods are rotated, and the scraper rods clean and scrape the inner wall of the storage tank to prevent material from sticking. At the same time, when the extension tube rises, it drives the rotating ring to rise, which in turn pulls the elastic cloth upward, and the elastic cloth becomes a frustum shape, blocking the material and preventing the material from falling from the extension tube. The material can only continue to fall after the extension tube descends again.

[0013] Preferably, a fixed shaft is fixedly connected to the bottom of the lower grinding plate, and the two grinding blocks are respectively adapted to the two fixed shafts. A first positive and negative motor is fixedly connected to the bottom layer inside the fixed shaft, and a lower reciprocating lead screw is fixedly connected to the output end of the first positive and negative motor.

[0014] Preferably, a horizontal plate is fixedly connected to the bottom of each of the two grinding blocks, a vertical plate is fixedly connected to the bottom of each of the two horizontal plates, a fixed rod is fixedly connected between the two vertical plates, a second fixed ring is fixedly connected inside the fixed rod, and a collar is fixedly connected between the two horizontal plates. The collar is sleeved on the outside of the fixed shaft. The second fixed ring drives the fixed rod and the vertical plate to move up and down, and drives the horizontal plate and the grinding blocks to move.

[0015] Preferably, a second one-way bearing is installed inside the second fixed ring, and a second threaded ring is fixedly connected inside the second one-way bearing. The lower reciprocating screw passes through the second threaded ring and is threadedly connected to the second threaded ring. Limiting blocks are fixedly connected to both sides inside the tank. The two vertical plates are slidably connected inside the two limiting blocks respectively. The limiting blocks limit and guide the vertical plates, thereby improving the stability of the vertical plates when moving.

[0016] Preferably, a rotating rod is fixedly connected to the bottom end of the lower reciprocating screw, and crossbars are fixedly connected to both sides of the rotating rod. Scrapers are fixedly connected to both sides of the two crossbars. A collection cylinder is fixedly connected to the bottom of the tank. The two scrapers are in contact with the inner wall of the collection cylinder. Multiple mixing rods are fixedly connected to the bottom of the crossbars. A discharge pipe is fixedly connected to the bottom of the collection cylinder. A discharge valve is installed on the outside of the discharge pipe. When the lower reciprocating screw rotates, it drives the rotating rod and crossbars to rotate, and drives the scrapers to rotate and scrape the inner wall of the collection cylinder to prevent material from sticking. At the same time, the multiple mixing rods rotate to mix and stir the material.

[0017] Compared with the prior art, the beneficial effects of the present invention are: 1. In this application, the hollow reciprocating screw drives the support plate to descend during its descent, which in turn drives the support rod and spring to descend, simultaneously causing the upper grinding plate to descend. The spring then presses down on the upper grinding plate, keeping it pushed downwards. When the upper grinding plate moves above the lower grinding plate, its lower surface contacts the upper surface of the lower grinding plate, facilitating material grinding. By incorporating a dust cover, storage tank, and elastic cloth, the space is effectively sealed during feeding and storage, preventing straw dust from escaping. When the hollow reciprocating screw drives the extension tube upwards, the rotating ring pulls the elastic cloth to form a barrier, preventing material from falling and further suppressing dust. Simultaneously, the scraper rod rotates with the extension tube, cleaning the inner wall of the storage tank, reducing material adhesion, and improving dust prevention and material flowability.

[0018] 2. This application utilizes the gap between the upper and lower grinding plates to trap the material, which is then ground by the rotation of the upper grinding plate. The upper and lower grinding plates work together for grinding. The upper grinding plate achieves rotation and reciprocating motion via a hollow reciprocating screw, while springs and support rods provide continuous downward pressure, enhancing the grinding effect. The grinding block, driven by a lower reciprocating screw, can move up and down along the through groove, facilitating control of material fall and residue removal, achieving efficient and uniform crushing operations.

[0019] 3. When the motor is driven in reverse, the first one-way bearing rotates freely, and the hollow reciprocating screw only rotates without moving up and down. At this time, the upper grinding plate mainly plays the role of sweeping the newly falling material into the grinding gap and continuously rotating and grinding. This design realizes the automatic switching between the two modes of "pressure grinding" and "rotation sweeping" under the drive of a single motor.

[0020] 4. This application utilizes gas to blow the powder from the top of the lower grinding plate and the grinding block downwards, preventing material residue and allowing the ground material to enter the collection cylinder. It incorporates a guide rail, rotating ring, and bellows, among other structures, to deliver high-pressure gas to the nozzle via an external air source. This gas blows across the surface of the lower grinding plate as the upper grinding plate rotates, preventing powder accumulation and reducing residue. This structure simultaneously cleans the material during the grinding process, improving the equipment's continuous operation capability and cleanliness.

[0021] 5. The material collection cylinder of this application is equipped with a stirring mechanism consisting of a rotating rod, a cross rod and a mixing rod. It can mix and stir the crushed material under the drive of the lower reciprocating screw. The scraper rotates synchronously to clean the inner wall of the material collection cylinder, prevent material from sticking, ensure that the material is evenly mixed and smoothly discharged through the discharge pipe, improve the mixing quality and discharge efficiency, and facilitate the subsequent production of feed. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the fixing sleeve of the present invention; Figure 3 This is a front sectional view of the present invention; Figure 4 This is a schematic diagram of the structure of the storage tank of the present invention; Figure 5 This is a schematic diagram of the structure of the grinding plate of the present invention; Figure 6 This is a schematic diagram of the extension tube of the present invention; Figure 7 This is a schematic diagram of the hollow reciprocating lead screw of the present invention; Figure 8 This is a schematic diagram of the rotating cylinder of the present invention; Figure 9 This is a schematic diagram of the structure of the empty slot of the present invention; Figure 10 This is a schematic diagram of the air guide rail structure of the present invention; Figure 11 This is a schematic diagram of the structure of the grinding block of the present invention; Figure 12 This is a schematic diagram of the structure of the collar of the present invention; Figure 13 This is a schematic diagram of the structure of the second fixing ring of the present invention; Figure 14 This is a schematic diagram of the scraper structure of the present invention; Figure 15 This is a schematic diagram of the support plate of the present invention.

[0023] Labels in the diagram: 1. Tank body; 2. Storage tank; 3. Dust cover; 4. Fixed cylinder; 5. Rotating cylinder; 6. Hollow reciprocating screw; 7. First fixed ring; 8. First one-way bearing; 9. First threaded ring; 10. Limiting groove; 11. Limiting plate; 12. Support plate; 13. Upper grinding plate; 14. Empty groove; 15. Nozzle; 16. Fixed sleeve; 17. Lower grinding plate; 18. Fixed shaft; 19. First forward and reverse motor; 20. Lower reciprocating screw; 21. Second fixed ring; 22. Fixed rod; 23. Vertical plate; 24. Horizontal plate; 25. Collar; 2 6. Grinding block; 27. Through groove; 28. Second one-way bearing; 29. ​​Second threaded ring; 30. Limiting block; 32. Air guide rail; 33. Rotating ring; 34. Bellows; 35. Connecting pipe; 36. Side plate; 37. Second forward and reverse motor; 38. Guide gear; 39. Guide gear ring; 40. Extension pipe; 41. Rotating ring; 42. Scraper rod; 43. Elastic cloth; 45. Rotating rod; 46. Crossbar; 47. Scraper; 48. Mixing rod; 49. Discharge pipe; 50. Collecting cylinder; 51. Guide pipe; 52. Spring; 53. Support rod. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Example: Figures 1-15 As shown, this invention provides a technical solution for a dust-proof straw crushing device equipped with an energy-saving electric motor, comprising a tank body 1, a storage tank 2 fixedly connected to the top of the tank body 1, a dust cover 3 fixedly connected to the top of the storage tank 2, a fixed cylinder 4 fixedly connected to the bottom of the storage tank 2, a rotating cylinder 5 rotatably connected inside the fixed cylinder 4, a hollow reciprocating screw 6 disposed inside the rotating cylinder 5, a first fixed ring 7 fixedly connected to the bottom of the fixed cylinder 4, a first one-way bearing 8 fixedly connected inside the first fixed ring 7, a first threaded ring 9 fixedly connected inside the first one-way bearing 8, the hollow reciprocating screw 6 passing through the first threaded ring 9 and threadedly connected to the first threaded ring 9, a support plate 12 fixedly connected to the bottom end of the hollow reciprocating screw 6, and a guide pipe 51 slidably connected to the bottom end inside the hollow reciprocating screw 6. An upper grinding plate 13 is fixedly connected to the outer side of the bottom end of the feed pipe 51. Both sides of the bottom of the upper grinding plate 13 have slots 14, and nozzles 15 are fixedly connected inside each slot 14. A fixing sleeve 16 is fixedly connected inside the tank body 1, and a lower grinding plate 17 is fixedly connected inside the fixing sleeve 16. Two grinding blocks 26 are provided at the bottom of the lower grinding plate 17. Both sides of the interior of the lower grinding plate 17 have through slots 27, and the two grinding blocks 26 are respectively adapted to the two through slots 27. Limiting slots 10 are provided on both sides of the hollow reciprocating screw 6. Limiting plates 11 are integrally formed on both sides of the interior of the rotating cylinder 5. The two limiting plates 11 are slidably connected to the two limiting slots 10 and adapted to the two limiting slots 10, thereby limiting and guiding the limiting slots 10. This drives the hollow reciprocating screw 6 to rotate. Support rods 53 are slidably connected to both sides inside the support plate 12. Springs 52 are sleeved on the outside of the two support rods 53. The two ends of the springs 52 are fixedly connected to the support plate 12 and the upper grinding plate 13, respectively.

[0026] A guide gear ring 39 is fixedly connected to the outer side of the rotating cylinder 5. A side plate 36 is fixedly connected to one side of the fixed cylinder 4. A second forward and reverse motor 37 is fixedly connected to the top of the side plate 36. A guide gear 38 is fixedly connected to the output end of the second forward and reverse motor 37. The guide gear 38 meshes with the guide gear ring 39. The second forward and reverse motor 37 starts and drives the guide gear 38 to rotate. The rotation of the guide gear 38 drives the guide gear ring 39 to rotate, thereby driving the rotating cylinder 5 to rotate.

[0027] An air guide rail 32 is fixedly connected to the top of the upper grinding plate 13. A rotating ring 33 is slidably connected to the top of the air guide rail 32. Corrugated pipes 34 are fixedly connected to both sides of the top of the rotating ring 33. Both corrugated pipes 34 penetrate the side wall of the tank 1 and are fixedly connected to the tank 1. Connecting pipes 35 are fixedly connected to both sides of the bottom of the air guide rail 32. The two connecting pipes 35 are respectively connected to the two nozzles 15. When the air guide rail 32 rotates, it can rotate relative to the rotating ring 33. At this time, the high-pressure gas entering the cavity between the rotating ring 33 and the air guide rail 32 from the corrugated pipe 34 can be transmitted along the cavity to the connecting pipe 35 and discharged outward from the connecting pipe 35.

[0028] An extension tube 40 is fixedly connected to the top of the hollow reciprocating screw 6. A rotating ring 41 is rotatably connected to the top of the extension tube 40. Multiple scraper rods 42 are fixedly connected to the inner side of the top of the extension tube 40. All scraper rods 42 are in contact with the inner wall of the storage tank 2. An elastic cloth 43 is fixedly connected inside the storage tank 2. The rotating ring 41 is fixedly connected to the inner side of the elastic cloth 43. When the extension tube 40 is rotated by the hollow reciprocating screw 6, the scraper rods 42 are rotated and scrape the inner wall of the storage tank 2 to prevent material from sticking. At the same time, when the extension tube 40 rises, it drives the rotating ring 41 to rise, which in turn drives the elastic cloth 43 to rise. The elastic cloth 43 becomes a frustum shape, blocking the material and preventing it from falling from the extension tube 40. The material can only continue to fall after the extension tube 40 descends again.

[0029] A fixed shaft 18 is fixedly connected to the bottom of the lower grinding plate 17. Two grinding blocks 26 are respectively adapted to the two fixed shafts 18. A first forward and reverse motor 19 is fixedly connected to the bottom of the fixed shaft 18. A lower reciprocating lead screw 20 is fixedly connected to the output end of the first forward and reverse motor 19. A horizontal plate 24 is fixedly connected to the bottom of each of the two grinding blocks 26. A vertical plate 23 is fixedly connected to the bottom of each of the two horizontal plates 24. A fixed rod 22 is fixedly connected between the two vertical plates 23. A second fixed ring 21 is fixedly connected inside the fixed rod 22. A collar 25 is fixedly connected between the two horizontal plates 24 and is sleeved on the fixed shaft 18. On the outside, the second fixing ring 21 drives the fixing rod 22 and the vertical plate 23 to move up and down, and drives the horizontal plate 24 and the grinding block 26 to move. The second fixing ring 21 is equipped with a second one-way bearing 28. The second one-way bearing 28 is fixedly connected to a second threaded ring 29. The lower reciprocating screw 20 passes through the second threaded ring 29 and is threadedly connected to the second threaded ring 29. Limiting blocks 30 are fixedly connected to both sides inside the tank body 1. The two vertical plates 23 are slidably connected to the two limiting blocks 30 respectively. The limiting blocks 30 limit and guide the vertical plates 23, improving the stability of the vertical plates 23 when moving.

[0030] A rotating rod 45 is fixedly connected to the bottom end of the lower reciprocating screw 20. A crossbar 46 is fixedly connected to both sides of the rotating rod 45. Scrapers 47 are fixedly connected to both sides of the two crossbars 46. A collecting cylinder 50 is fixedly connected to the bottom inside the tank body 1. The two scrapers 47 are in contact with the inner wall of the collecting cylinder 50. Multiple mixing rods 48 are fixedly connected to the bottom of the crossbars 46. A discharge pipe 49 is fixedly connected to the bottom of the collecting cylinder 50. A discharge valve is installed on the outside of the discharge pipe 49. When the lower reciprocating screw 20 rotates, it drives the rotating rod 45 and the crossbars 46 to rotate, and drives the scrapers 47 to rotate and scrape the inner wall of the collecting cylinder 50 to prevent material from sticking. At the same time, the multiple mixing rods 48 rotate to mix and stir the material.

[0031] In this system, pre-chopped straw and other materials enter through the feed inlet at the top of the dust cover 3 and fall into the storage tank 2. The second forward / reverse motor 37 starts in the forward direction, driving the guide gear 38 to rotate. When the guide gear 38 rotates, it drives the guide gear ring 39 to rotate, which in turn drives the rotating cylinder 5 to rotate. As the rotating cylinder 5 rotates, the limiting plates 11 on both sides inside limit and guide the limiting groove 10, thereby driving the hollow reciprocating screw 6 to rotate synchronously. When the hollow reciprocating screw 6 rotates in this direction, the first one-way bearing 8 is in a self-locking state, thus limiting the first threaded ring 9. The hollow reciprocating screw 6 rotates in this direction inside the first threaded ring 9. During rotation, the first threaded ring 9 limits the hollow reciprocating screw 6. The hollow reciprocating screw 6 moves up and down during rotation. When the hollow reciprocating screw 6 descends, it drives the support plate 12 to descend, which in turn drives the support rod 53 and the spring 52 to descend, and at the same time drives the upper grinding plate 13 to descend. The spring 52 presses down on the upper grinding plate 13, keeping the upper grinding plate 13 pushing downward. When the upper grinding plate 13 moves above the lower grinding plate 17, the lower surface of the upper grinding plate 13 is in contact with the upper surface of the lower grinding plate 17, which facilitates the grinding of materials. By setting up structures such as the dust cover 3, the storage tank 2 and the elastic cloth 43, the space is effectively sealed during feeding and storage to prevent straw dust from escaping. When the hollow reciprocating screw 6 drives the extension tube 40 to rise, the rotating ring 41 pulls the elastic cloth 43 to form a blockage, preventing the material from falling and further suppressing dust; at the same time, the scraper 42 rotates with the extension tube 40 to clean the inner wall of the storage tank 2, reduce material adhesion, and improve the dustproof effect and material flowability.

[0032] When the hollow reciprocating screw 6 descends, it drives the extension tube 40 to descend as well. This causes the top of the extension tube 40 to bring down the elastic cloth 43, making the elastic cloth 43 fit against the bottom of the storage tank 2. At this time, the top of the extension tube 40 corresponds to the bottom of the storage tank 2, allowing the material to fall from the extension tube 40 and pass through the hollow reciprocating screw 6 and the guide tube 51 into the bottom of the upper grinding plate 13. After the upper grinding plate 13 and the lower grinding plate 17 are in contact, the upper grinding plate 13 moves the support rod 53 upward and compresses the spring 52, making the upper grinding plate 13 and the lower grinding plate 17 fit tightly together. When the material enters the bottom of the upper grinding plate 13, it slides down from the slots 14 on both sides. At this time, the second forward and reverse motor 37 is started in reverse to drive the rotating drum 5 and the hollow reciprocating screw 6. When the lead screw 6 rotates in the opposite direction, the inner and outer rings of the first one-way bearing 8 idle, causing the first threaded ring 9 to lose its limiting position and become unable to limit the hollow reciprocating lead screw 6. This allows the hollow reciprocating lead screw 6 to rotate without moving up or down. As the hollow reciprocating lead screw 6 rotates, it moves the material trapped inside the empty groove 14, drawing it between the upper and lower grinding plates 13 and 17 through the gap. The upper grinding plate 13 then grinds the material by rotating. The upper and lower grinding plates 13 work together for grinding, with the upper grinding plate 13 rotating and reciprocating up and down via the hollow reciprocating lead screw 6. Combined with the spring 52 and support rod 53, continuous downward pressure is provided, enhancing the grinding effect. The grinding block 26, driven by the lower reciprocating lead screw 20, can move up and down along the through groove 27, facilitating control of material fall and residue removal, achieving efficient and uniform crushing operations.

[0033] After the falling material is ground, the first forward and reverse motor 19 is started in the forward direction to drive the lower reciprocating screw 20 to rotate. When the lower reciprocating screw 20 rotates, it drives the second threaded ring 29 to descend. The second threaded ring 29 drives the second one-way bearing 28 and the second fixed ring 21 to descend. The second fixed ring 21 then drives the fixed rod 22 and the vertical plate 23 to descend. The limiting block 30 limits the vertical plate 23 to improve the stability of the vertical plate 23 when it moves. When the vertical plate 23 moves, it drives the horizontal plate 24 and the collar 25 to descend, and drives the grinding block 26 to descend. This causes the grinding block 26 to detach from the inside of the through groove 27 and descend. This allows the grinding material powder between the lower grinding plate 17 and the upper grinding plate 13 to fall from the inside of the through groove 27 into the collection cylinder 50. The upper grinding plate 13 continues to rotate to scrape off the material on the top of the lower grinding plate 17, reducing material residue. Through the cooperation of the first one-way bearing 8 and the first threaded ring 9, when the second forward and reverse motor 37 drives in the forward direction, the first one-way bearing 8 self-locks, and the hollow reciprocating screw 6 rotates while generating up-and-down reciprocating motion, driving the upper grinding plate 13 to press down and fit against the lower grinding plate 17, thus realizing the grinding function of the material. When the motor drives in the reverse direction, the first one-way bearing 8 idles, and the hollow reciprocating screw 6 only rotates without moving up and down. At this time, the upper grinding plate 13 mainly plays the role of sweeping newly fallen material into the grinding gap and continuously rotating and grinding. This design realizes the automatic switching between the two modes of "pressure grinding" and "rotational sweeping" under the drive of a single motor.

[0034] During its descent, the upper grinding plate 13 drives the air guide rail 32 and the rotating ring 33 to descend synchronously. The bellows 34 extends and moves up and down with the rotating ring 33 to maintain communication. An external high-pressure air pump introduces high-pressure gas into the rotating ring 33 and the air guide rail 32 through the bellows 34. The gas enters the cavity of the rotating ring 33 and the air guide rail 32 from the bellows 34. When the upper grinding plate 13 rotates, it drives the air guide rail 32 to rotate, causing the air guide rail 32 and the rotating ring 33 to rotate relative to each other. The air flows through the interior of the rotating ring 33 and the air guide rail 32, and is finally sprayed into the empty trough 14 through the connecting pipe 35. This causes the gas to blow the powder on the top of the lower grinding plate 17 and the top of the grinding block 26 downwards, preventing material residue. The ground material then enters the collection cylinder 50. The structure, including the air guide rail 32, rotating ring 33, and corrugated pipe 34, supplies high-pressure gas to the nozzle 15 through an external air source. As the upper grinding plate 13 rotates, the gas blows across the surface of the lower grinding plate 17, preventing powder accumulation and reducing residue. This structure simultaneously cleans the material during the grinding process, improving the equipment's continuous operation capability and cleanliness.

[0035] When the lower reciprocating screw 20 continues to rotate, causing the grinding block 26 to assemble with the lower grinding plate 17, the first forward and reverse motor 19 starts in reverse, thereby causing the lower reciprocating screw 20 to rotate in the opposite direction. In this direction of rotation, the second one-way bearing 28 idles and does not limit the second threaded ring 29, thus causing the second threaded ring 29 to rotate with the lower reciprocating screw 20, thereby preventing the second threaded ring 29 from moving up and down. When the lower reciprocating screw 20 rotates, it drives the rotating rod 45 and the crossbar 46 to rotate, and... The moving scraper 47 scrapes the inner wall of the collecting cylinder 50, while simultaneously driving multiple mixing rods 48 to stir and mix the material. The collecting cylinder 50 is equipped with a stirring mechanism consisting of a rotating rod 45, a cross rod 46, and mixing rods 48, which can mix and stir the crushed material under the drive of the lower reciprocating screw 20. The scraper 47 rotates synchronously to clean the inner wall of the collecting cylinder 50, prevent material from sticking, ensure that the material is evenly mixed and smoothly discharged through the discharge pipe 49, improve the mixing quality and discharge efficiency, and facilitate subsequent feed production.

[0036] To achieve high-efficiency operation and excellent energy-saving performance of the integrated straw crushing, grinding and mixing equipment, this equipment adopts a high-efficiency energy-saving electric motor as the drive source in the core power system. Specifically, it includes a second forward and reverse motor 37 for driving the upper part of the crushing and grinding mechanism and a first forward and reverse motor 19 for driving the lower grinding blocks and mixing mechanism.

[0037] The motors are permanent magnet synchronous motors or high-performance three-phase asynchronous motors that meet IE4 or higher energy efficiency standards, with rated efficiency exceeding 94%. The motors employ optimized magnetic circuit design and low-loss silicon steel sheets, effectively reducing iron and copper losses. When providing power to core transmission components such as the hollow reciprocating screw 6 and the lower reciprocating screw 20, energy consumption savings of 15%-20% can be achieved compared to conventional motors. All motors are equipped with variable frequency drives (VFDs) to achieve smooth soft start and stepless speed regulation. This not only reduces the impact on the power grid during startup but also allows for real-time adjustment of motor speed and output torque based on the grinding load between the upper grinding plate 13 and the lower grinding plate 17, as well as the mixing resistance within the collecting cylinder 50. This avoids energy waste during no-load or light-load operation, achieving "on-demand energy supply."

[0038] The inherent forward and reverse rotation function of the motor, in precise coordination with mechanical structures such as the first one-way bearing 8 and the second one-way bearing 28, enables automatic switching between two working modes: "pressure grinding" and "rotational sweeping". For example, when the second forward and reverse motor 37 reverses, the system enters the low-power sweeping mode; while the first forward and reverse motor 19 reverses after driving the grinding block 26 to rise and fall, it can switch to the low-torque mixing mode, thereby significantly reducing ineffective energy consumption.

[0039] By adopting the aforementioned high-efficiency and energy-saving electric motor and its intelligent control system, this integrated straw crushing and mixing equipment achieves dust prevention (using the dust cover 3 and elastic cloth 43) and efficient crushing and mixing while significantly reducing operating energy consumption and carbon emissions. This power solution makes the equipment particularly suitable for large-scale, continuous straw feed processing scenarios, combining excellent economic efficiency and environmental friendliness.

[0040] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A dust-proof straw crushing device equipped with an energy-saving electric motor, comprising a tank (1), a storage tank (2) fixedly connected to the top of the tank (1), and a dust cover (3) fixedly connected to the top of the storage tank (2), characterized in that: The storage tank (2) is fixedly connected to a fixed cylinder (4) at its bottom. A rotating cylinder (5) is rotatably connected inside the fixed cylinder (4). A hollow reciprocating screw (6) is installed inside the rotating cylinder (5). A first fixed ring (7) is fixedly connected to the bottom of the fixed cylinder (4). A first one-way bearing (8) is fixedly connected inside the first fixed ring (7). A first threaded ring (9) is fixedly connected inside the first one-way bearing (8). The hollow reciprocating screw (6) passes through the first threaded ring (9) and is threadedly connected to the first threaded ring (9). A support plate (12) is fixedly connected to the bottom end of the hollow reciprocating screw (6). A guide tube (51) is slidably connected to the bottom of the inner part. An upper grinding plate (13) is fixedly connected to the outer side of the bottom of the guide tube (51). A slot (14) is opened on both sides of the bottom of the upper grinding plate (13). A nozzle (15) is fixedly connected inside the two slots (14). A fixing sleeve (16) is fixedly connected inside the tank (1). A lower grinding plate (17) is fixedly connected inside the fixing sleeve (16). Two grinding blocks (26) are provided at the bottom of the lower grinding plate (17). A through groove (27) is opened on both sides of the inner part of the lower grinding plate (17). The two grinding blocks (26) are respectively adapted to the two through grooves (27).

2. The dust-proof straw crushing equipment equipped with an energy-saving electric motor according to claim 1, characterized in that: The hollow reciprocating screw (6) has limit grooves (10) on both sides, and the rotating cylinder (5) has limit plates (11) integrally formed on both sides inside. The two limit plates (11) are slidably connected to the two limit grooves (10) and are adapted to the two limit grooves (10).

3. The dust-proof straw crushing equipment equipped with an energy-saving electric motor according to claim 1, characterized in that: A guide gear ring (39) is fixedly connected to the outside of the rotating cylinder (5), a side plate (36) is fixedly connected to one side of the fixed cylinder (4), a second forward and reverse motor (37) is fixedly connected to the top of the side plate (36), a guide gear (38) is fixedly connected to the output end of the second forward and reverse motor (37), and the guide gear (38) meshes with the guide gear ring (39).

4. The dust-proof straw crushing equipment equipped with an energy-saving electric motor according to claim 1, characterized in that: The support plate (12) has a support rod (53) slidably connected to both sides inside. The two support rods (53) are fitted with springs (52) on their outer sides. The two ends of the springs (52) are fixedly connected to the support plate (12) and the upper grinding plate (13) respectively.

5. The dust-proof straw crushing equipment equipped with an energy-saving electric motor according to claim 1, characterized in that: The top of the upper grinding plate (13) is fixedly connected to an air guide rail (32), and the top of the air guide rail (32) is slidably connected to a rotating ring (33). Both sides of the top of the rotating ring (33) are fixedly connected to corrugated pipes (34). Both corrugated pipes (34) penetrate the side wall of the tank (1) and are fixedly connected to the tank (1). Both sides of the bottom of the air guide rail (32) are fixedly connected to connecting pipes (35). The two connecting pipes (35) are respectively connected to two nozzles (15).

6. The dust-proof straw crushing equipment equipped with an energy-saving electric motor according to claim 1, characterized in that: The hollow reciprocating screw (6) is fixedly connected to an extension tube (40) at its top end. The extension tube (40) is rotatably connected to a rotating ring (41) at its top end. Multiple scraper rods (42) are fixedly connected to the inner side of the top end of the extension tube (40). The multiple scraper rods (42) are all in contact with the inner wall of the storage tank (2). An elastic cloth (43) is fixedly connected inside the storage tank (2). The rotating ring (41) is fixedly connected to the inner side of the elastic cloth (43).

7. A dust-preventing straw crushing device equipped with an energy-saving electric motor according to claim 1, characterized in that: The bottom of the lower grinding plate (17) is fixedly connected to a fixed shaft (18), and the two grinding blocks (26) are respectively adapted to the two fixed shafts (18). The bottom layer inside the fixed shaft (18) is fixedly connected to a first forward and reverse motor (19), and the output end of the first forward and reverse motor (19) is fixedly connected to a lower reciprocating screw (20).

8. A dust-preventing straw crushing device equipped with an energy-saving electric motor according to claim 7, characterized in that: A horizontal plate (24) is fixedly connected to the bottom of each of the two grinding blocks (26), a vertical plate (23) is fixedly connected to the bottom of each of the two horizontal plates (24), a fixed rod (22) is fixedly connected between the two vertical plates (23), a second fixed ring (21) is fixedly connected inside the fixed rod (22), and a collar (25) is fixedly connected between the two horizontal plates (24), and the collar (25) is sleeved on the outside of the fixed shaft (18).

9. A dust-proof straw crushing device equipped with an energy-saving electric motor according to claim 8, characterized in that: The second fixed ring (21) is equipped with a second one-way bearing (28), and the second one-way bearing (28) is fixedly connected with a second threaded ring (29). The lower reciprocating screw (20) passes through the second threaded ring (29) and is threadedly connected to the second threaded ring (29). Limiting blocks (30) are fixedly connected to both sides of the tank body (1). The two vertical plates (23) are slidably connected to the two limiting blocks (30) respectively.

10. A dust-preventing straw crushing device equipped with an energy-saving electric motor according to claim 7, characterized in that: The bottom end of the lower reciprocating screw (20) is fixedly connected to a rotating rod (45), and both sides of the rotating rod (45) are fixedly connected to crossbars (46). Both sides of the two crossbars (46) are fixedly connected to scrapers (47). The bottom end of the tank (1) is fixedly connected to a collecting cylinder (50). Both scrapers (47) are in contact with the inner wall of the collecting cylinder (50). The bottom of the crossbars (46) is fixedly connected to multiple mixing rods (48). The bottom end of the collecting cylinder (50) is fixedly connected to a discharge pipe (49). A discharge valve is installed on the outside of the discharge pipe (49).

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