Urea pulverizer with feeding auxiliary device

Abstract

The invention belongs to the field of urea crushers, and particularly relates to a urea crusher with a feeding auxiliary device, the urea crusher comprises a crusher main body, the top end of the crusher main body is fixedly connected with a feeding frame, the left and right sides of the feeding frame are both provided with movable grooves, and the interiors of the movable grooves are slidably connected with fixed rods; the fixing rod is fixedly connected to an extrusion block, the extrusion block does not make contact with the inner wall of the feeding frame, and auxiliary feeding mechanisms are arranged on the left side and the right side of the extrusion block and used for driving the extrusion block to reciprocate so that the extrusion block can extrude caked urea particles; a stirring mechanism is arranged in the extrusion block and is used for driving the rotating rod to rotate; and through the structural design of the auxiliary feeding mechanism, an extrusion block can reciprocate in a feeding frame, so that caked urea particles are extruded, and the function of rapidly crushing the caked urea particles is achieved.

Description

Technical Field

[0001] The present invention relates to the field of urea crushers, and specifically to a urea crusher with a feeding auxiliary device. Background Art

[0002] Urea, as an important nitrogen fertilizer, is widely used in agricultural production. In order to improve the utilization rate of urea, a urea crusher is used to crush it into fine particles for uniform spreading and rapid dissolution. For caked urea, manual pushing is required to assist in feeding.

[0003] According to a urea crusher with a feeding auxiliary device proposed in the patent document CN202121419983.4, it includes a crushing box, a feeding hopper provided on the crushing box, a feeding auxiliary device provided in the feeding hopper, a fixed roller and a sliding roller provided in the crushing box, and a discharge hopper provided directly below the fixed roller and the sliding roller. This utility model uniformly disperses and screens urea particles through the feeding auxiliary device provided in the feeding hopper. The feeding auxiliary device includes a stirring roller and a feeding adjusting plate arranged in sequence from top to bottom. A plurality of racks are provided on the outer circumferential surface of the stirring roller. When the stirring roller rotates, it drives the racks to rotate. During the rotation of the racks, the falling urea particles can be continuously stirred, so that the urea particles are dispersed to prevent the urea particles from caking, and the urea particles fall continuously and uniformly, and are screened by the feeding adjusting plate. Large particles and caked urea particles in the urea particles can be filtered out before entering the crushing box, preventing large particles and caked urea particles in the urea particles from entering the crushing box.

[0004] However, for the urea crusher with a feeding auxiliary device in the above technology, although a stirring roller is provided to disperse caked urea particles, the stirring roller still requires a certain amount of time during the dispersion process, which will reduce the crushing efficiency of the urea crusher. Moreover, larger urea lumps may need to be manually pushed to be completely dispersed by the stirring roller, which easily affects the production continuity. Therefore, a urea crusher with a feeding auxiliary device is proposed to solve the above problems. Summary of the Invention

[0005] In order to solve the problem that for the urea crusher with a feeding auxiliary device in the above technology, although a stirring roller is provided to disperse caked urea particles, the stirring roller still requires a certain amount of time during the dispersion process, which will reduce the crushing efficiency of the urea crusher, and larger urea lumps may need to be manually pushed to be completely dispersed by the stirring roller, which easily affects the production continuity, the present invention proposes a urea crusher with a feeding auxiliary device.

[0006] The technical solution adopted by the present invention to solve its technical problems is as follows: A urea pulverizer with a feeding auxiliary device according to the present invention includes a pulverizer main body, and a feeding frame is fixedly connected to the top end of the pulverizer main body. Activity slots are provided on both the left and right sides of the feeding frame. A fixed rod is slidably connected inside the activity slot, and the fixed rod is fixedly connected to an extrusion block. The extrusion block does not contact the inner wall of the feeding frame. Auxiliary feeding mechanisms are provided on both the left and right sides of the extrusion block. The auxiliary feeding mechanism is used to drive the extrusion block to reciprocate, so that the extrusion block can extrude the agglomerated urea particles. A stirring mechanism is arranged inside the extrusion block. The stirring mechanism is used to drive the rotating rod to rotate, so as to stir the urea particles. Two sets of vibrating plates are arranged below the extrusion block. Jitter mechanisms are arranged on both sides of the vibrating plate. The jitter mechanism is used to jitter the vibrating plate to reduce the blockage of urea particles at the vibrating plate.

[0007] Preferably, the auxiliary feeding mechanism includes a fixed block. The fixed block is fixedly connected to the side of the fixed rod away from the extrusion block. The fixed block is designed in a U shape. The inner wall of the fixed block contacts a convex post. The convex post is fixedly connected to a turntable. A driving wheel is fixedly connected to the side of the turntable away from the convex post. A first belt is sleeved on the driving wheel. The bottom end of the first belt is sleeved on the rotating shaft of a rotating roller. The rotating roller is rotatably connected inside the pulverizer main body. The driving wheel is rotatably connected to a support frame. The bottom end of the support frame is fixedly connected to the top end of the pulverizer main body. There are two sets of rotating rollers. A driven belt wheel is fixedly connected to one side of the rotating roller. A driving mechanism is arranged on the driven belt wheel.

[0008] Preferably, the driving mechanism includes two sets of driving motors. The bottom end of the driving motor is fixedly connected to an extension plate. The extension plate is fixedly connected to the rear end of the pulverizer main body. The output shaft of the driving motor is fixedly connected to a driving belt wheel. A second belt is sleeved on the driving belt wheel. The top end of the second belt is sleeved on the driven belt wheel.

[0009] Preferably, the stirring mechanism includes multiple connecting blocks. The connecting blocks are fixedly connected inside the extrusion block. The inside of the extrusion block is designed to be hollow. A spiral line is provided on the rotating rod. There are multiple rotating rods. The front and rear sides of the rotating rod are rotatably connected to the inner wall of the feeding frame. The rotating rod penetrates the extrusion block. Multiple stirring rods are fixedly connected to the rotating rod. The stirring rods are located at positions close to the front and rear sides of the rotating rod.

[0010] Preferably, the jitter mechanism includes a connecting plate. There are two groups of the connecting plates, which are fixedly connected to the left and right sides of the vibrating plate. Two groups of guide posts are inserted into the connecting plates. The bottom end of the connecting plate is fixedly connected with a spring, and the bottom end of the spring is fixedly connected to the top end of the crusher main body. The spring is sleeved on the guide post. The guide post is designed in a T shape. The top end of the connecting plate is close to the turntable, and a convex block is fixedly connected to the top end of the turntable. Through holes are opened on the left and right sides of the feed frame.

[0011] Preferably, on the left and right sides of the top end of the extrusion block, support plates are fixedly connected. The cross-section of the support plate is designed in an L shape. A plurality of groups of balls are rotatably connected to the top end of the support plate, and the bottom ends of the balls are abutted against the top end of the feed frame.

[0012] Preferably, a top block is fixedly connected to the top end of the extrusion block. The cross-section of the top block is designed in a triangle, and the top block is made of plastic material.

[0013] Preferably, the front and rear sides of the support plate are fixedly connected to the mounting plate, and the bottom end of the mounting plate is attached to the top end of the feed frame.

[0014] Preferably, a limiting ring is fixedly connected to the fixed rod. The limiting ring is attached to the feed frame, and the diameter of the limiting ring is larger than the width of the movable groove.

[0015] Preferably, sleeve shells are fixedly connected to the left and right sides of the crusher main body. A notch corresponding to the first belt is opened at the top end of the right sleeve shell.

[0016] The beneficial effects of the present invention are as follows: 1. Through the structural design of the auxiliary feeding mechanism of the present invention, the extrusion block can reciprocate inside the feed frame, so as to extrude the agglomerated urea particles, realizing the function of quickly crushing the agglomerated urea particles, and solving the problem that in the prior art, for the urea crusher with a feeding auxiliary device, although a stirring roller is provided to disperse the agglomerated urea particles, the stirring roller still requires a certain amount of time during the dispersion process, which will reduce the crushing efficiency of the urea crusher, and larger urea agglomerates may need to be manually pushed to be completely dispersed by the stirring roller, which is likely to affect the production continuity.

[0017] 2. Through the structural design of the stirring mechanism of the present invention, during the movement of the extrusion block, the rotating rod will be driven to rotate. When a plurality of groups of rotating rods rotate, the stirring rods fixed on the rotating rods will stir the urea particles to improve the fluidity of the urea particles and reduce the blockage of the urea particles at the feeding port position of the crusher main body, so as to facilitate the urea particles to be fed more smoothly.

[0018] 3. Through the structural design of the jitter mechanism, the present invention realizes the function that the vibrating plate can jitter up and down, so that when urea particles pass through the vibrating plate, the jitter of the vibrating plate can be used to avoid the accumulation and blockage of urea particles, thereby further reducing the occurrence of blockage of urea particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 is a three-dimensional structural schematic diagram of the present invention; Figure 2 is a cross-sectional structural schematic diagram of the present invention; Figure 3 is a structural schematic diagram of the rear end of the pulverizer main body of the present invention; Figure 4 is a connection structural schematic diagram of the driving wheel and the rotating roller of the present invention; Figure 5 is a structural schematic diagram of the auxiliary feeding mechanism of the present invention; Figure 6 is a structural schematic diagram inside the extrusion block of the present invention; Figure 7 is an exploded view of the internal structure of the feeding frame of the present invention; Figure 8 is a connection structural schematic diagram of the driven belt pulley of the present invention.

[0021] In the figure: 1, pulverizer main body; 20, feeding frame; 21, extrusion block; 22, top block; 23, support plate; 24, ball; 25, limit ring; 26, fixed rod; 27, movable groove; 28, fixed block; 29, convex column; 30, convex block; 31, turntable; 32, driving wheel; 33, rotating roller; 34, first belt; 35, driven belt pulley; 36, driving motor; 37, housing; 38, spring; 39, vibrating plate; 40, guiding column; 41, connecting plate; 42, through hole; 43, mounting plate; 44, stirring rod; 45, rotating rod; 46, connecting block; 47, support frame; 48, extension plate; 49, second belt; 50, driving belt pulley. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Embodiment 1

[0023] Please refer to Figure 1 - Figure 8 As shown, a urea crusher with a feeding auxiliary device includes a crusher main body 1. A feeding frame 20 is fixedly connected to the top of the crusher main body 1. Activity slots 27 are provided on both the left and right sides of the feeding frame 20. A fixed rod 26 is slidably connected inside the activity slot 27. The fixed rod 26 is fixedly connected to an extrusion block 21. The extrusion block 21 does not contact the inner wall of the feeding frame 20. Auxiliary feeding mechanisms are provided on both the left and right sides of the extrusion block 21. The auxiliary feeding mechanisms are used to drive the extrusion block 21 to reciprocate, so that the extrusion block 21 can extrude the agglomerated urea particles. A stirring mechanism is arranged inside the extrusion block 21. The stirring mechanism is used to drive a rotating rod 45 to rotate, so as to stir the urea particles. Two groups of vibrating plates 39 are arranged below the extrusion block 21. Jitter mechanisms are arranged on both sides of the vibrating plates 39. The jitter mechanisms are used to jitter the vibrating plates 39 to reduce the blockage of urea particles at the vibrating plates 39. Further, the auxiliary feeding mechanism includes a fixed block 28. The fixed block 28 is fixedly connected to the side of the fixed rod 26 away from the extrusion block 21. The fixed block 28 is designed in a U shape. The inner wall of the fixed block 28 contacts a convex post 29. The convex post 29 is fixedly connected to a turntable 31. A driving wheel 32 is fixedly connected to the side of the turntable 31 away from the convex post 29. A first belt 34 is sleeved on the driving wheel 32. The bottom end of the first belt 34 is sleeved on the rotating shaft of a rotating roller 33. The rotating roller 33 is rotatably connected inside the crusher main body 1. The driving wheel 32 is rotatably connected to a support frame 47. The bottom end of the support frame 47 is fixedly connected to the top of the crusher main body 1. There are two groups of rotating rollers 33. One side of the rotating roller 33 is fixedly connected to a driven belt pulley 35. A driving mechanism is arranged on the driven belt pulley 35. Through the structural design of the auxiliary feeding mechanism, the extrusion block 21 can reciprocate inside the feeding frame 20, thereby extruding the agglomerated urea particles, realizing the function of quickly crushing the agglomerated urea particles. During operation, the feeding frame 20 is fixed at the position of the top feeding port of the main body 1 of the crusher. When pouring the urea particles into the feeding port of the main body 1 of the crusher, the rotation of the rotating roller 33 is transmitted to the driving wheel 32 through the first belt 34 and drives the driving wheel 32 to rotate. The driving wheel 32 is fixed together with the turntable 31, so the turntable 31 will rotate together. The convex column 29 fixed on the turntable 31 will push the fixed block 28 to rotate by abutting against the inner wall of the fixed block 28, thereby pushing the fixed block 28 to reciprocate in the front-back direction. The fixed rod 26 will slide back and forth in the movable groove 27. The fixed rod 26 is fixedly connected with the extrusion block 21, so the fixed rod 26 will drive the extrusion block 21 to reciprocate inside the feeding frame 20. Since most of the feeding frame 20 is blocked by the extrusion block 21, the urea particles will enter the inside of the main body 1 of the crusher through the gap between the feeding frame 20 and the extrusion block 21 and be crushed by the rotating roller 33. At this time, the reciprocating movement of the extrusion block 21 can extrude the agglomerated urea particles, so as to quickly decompose the agglomerated urea particles, facilitating the subsequent crushing operation of the rotating roller 33. The top of the support frame 47 is located between the turntable 31 and the driving wheel 32, which can support the turntable 31 and the driving wheel 32 to facilitate the stable rotation of the turntable 31 and the driving wheel 32.

[0024] Further, the driving mechanism includes two sets of driving motors 36. The bottom ends of the driving motors 36 are fixedly connected to the extension plate 48. The extension plate 48 is fixedly connected to the rear end of the main body 1 of the crusher. The output shaft of the driving motor 36 is fixedly connected to the driving pulley 50. A second belt 49 is sleeved on the driving pulley 50. The top end of the second belt 49 is sleeved on the driven pulley 35. During operation, the driving pulleys 50 are fixed to the output shafts of the two sets of driving motors 36. The driving pulleys 50 drive the driven pulleys 35 to rotate through the second belt 49, thereby driving the two sets of rotating rollers 33 to rotate. The bottom ends of the driving motors 36 are fixed to the extension plate 48 to ensure the stable operation of the driving motors 36.

[0025] Further, the stirring mechanism includes multiple sets of connecting blocks 46. The connecting blocks 46 are fixedly connected inside the extrusion block 21. The inside of the extrusion block 21 is designed to be hollow. The rotating rod 45 is provided with a spiral line. Multiple sets of rotating rods 45 are provided. The front and rear sides of the rotating rod 45 are rotatably connected to the inner wall of the feeding frame 20. The rotating rod 45 penetrates the extrusion block 21. Multiple sets of stirring rods 44 are fixedly connected to the rotating rod 45. The stirring rods 44 are located at positions close to the front and rear sides of the rotating rod 45. Through the structural design of the stirring mechanism, during the movement of the extrusion block 21, the rotating rod 45 will be driven to rotate. When multiple groups of rotating rods 45 rotate, the stirring rods 44 fixed on the rotating rod 45 will stir the urea particles to improve the fluidity of the urea particles and reduce the blockage of the urea particles at the feeding port of the crusher main body 1, so as to facilitate the smoother feeding of the urea particles. During operation, the inside of the extrusion block 21 is hollow-designed and fixed with multiple groups of connecting blocks 46 inside. The connecting blocks 46 and the rotating rod 45 are connected by a screw pair. When the extrusion block 21 moves to one side, the connecting block 46 will drive the rotating rod 45 to rotate. At this time, multiple groups of stirring rods 44 fixed on the rotating rod 45 can stir the urea particles. The stirring rods 44 are located on the front and back sides of the rotating rod 45 to prevent the extrusion block 21 from coming into contact with the stirring rods 44 when it moves. And the helical lines opened on adjacent two groups of rotating rods 45 have opposite helix directions to improve the stirring effect of the stirring rods 44 on the urea particles. The rotating rod 45 penetrates through the extrusion block 21 to facilitate the smooth movement of the extrusion block 21.

[0026] Furthermore, the jitter mechanism includes two connecting plates 41. The connecting plates 41 are fixed to the left and right sides of the vibrating plate 39. Two guiding columns 40 are inserted into the connecting plates 41. The bottom end of the connecting plate 41 is fixedly connected with a spring 38. The bottom end of the spring 38 is fixedly connected with the top end of the crusher main body 1. The spring 38 is sleeved on the guiding column 40. The guiding column 40 is designed in a T shape. The top end of the connecting plate 41 is close to the turntable 31. A convex block 30 is fixedly connected to the top end of the turntable 31. Through holes 42 are opened on the left and right sides of the feeding frame 20. Through the structural design of the jitter mechanism, the function that the vibrating plate 39 can jitter up and down is realized, so that when the urea particles pass through the vibrating plate 39, the jitter of the vibrating plate 39 can be used to prevent the urea particles from accumulating and blocking, thereby further reducing the occurrence of blockage of the urea particles. During operation, the vibrating plate 39 is located below the extrusion block 21. When the convex block 30 fixed to the top end of the turntable 31 rotates to the bottom end position of the turntable 31, since the bottom end of the turntable 31 is in contact with the connecting plate 41, the convex block 30 will abut against the top end of the connecting plate 41 and push the connecting plate 41 to move downward. The spring 38 fixed to the bottom end of the connecting plate 41 will be compressed. When the turntable 31 continues to rotate, the convex block 30 will gradually move away from the connecting plate 41. The connecting plate 41 will reset under the action of the spring 38 and oscillate repeatedly through the spring 38, thereby driving the vibrating plate 39 connected to the connecting plate 41 to jitter to ensure that the urea particles on the vibrating plate 39 are not easily blocked.

[0027] Furthermore, both the left and right sides of the top end of the extrusion block 21 are fixedly connected with support plates 23. The cross section of the support plates 23 is designed in an L shape. Multiple groups of ball bearings 24 are rotatably connected to the top ends of the support plates 23. The bottom ends of the ball bearings 24 abut against the top end of the feeding frame 20. During operation, multiple groups of balls 24 are fixed on the support plate 23. The balls 24 can change the sliding friction between the support plate 23 and the top end of the feed frame 20 into rolling friction, so as to reduce the frictional resistance when the support plate 23 moves. The support plate 23 can provide support for the extrusion block 21 to facilitate the movement of the extrusion block 21 inside the feed frame 20.

[0028] Furthermore, a top block 22 is fixedly connected to the top end of the extrusion block 21. The cross-section of the top block 22 is designed as a triangle, and the top block 22 is made of plastic material; During operation, the cross-section of the top block 22 is designed as a triangle to prevent urea particles from accumulating above the extrusion block 21 and ensure that the urea particles can slide into the inside of the crusher main body 1 from the front and back sides of the extrusion block 21.

[0029] Furthermore, the front and back sides of the support plate 23 are fixedly connected to the mounting plate 43, and the bottom end of the mounting plate 43 is attached to the top end of the feed frame 20; During operation, the mounting plate 43 is fixed on the support plate 23 and can move together with the support plate 23. At the same time, multiple sets of mesh holes are provided on the mounting plate 43 to facilitate the urea particles to smoothly pass through the mounting plate 43. The mounting plate 43 can block the hands of the operator, thereby improving the safety of the crusher main body 1 during operation and reducing the occurrence of accidents. Embodiment 2

[0030] Please refer to Figure 5 and Figure 8 As shown, as another implementation manner of the present invention for Comparative Example 1, a limit ring 25 is fixedly connected to the fixed rod 26. The limit ring 25 is in contact with the feed frame 20, and the diameter of the limit ring 25 is greater than the width of the movable groove 27; During operation, the limit ring 25 is fixed on the fixed rod 26 and is in contact with the feed frame 20. The limit ring 25 can limit the movement of the extrusion block 21 in the horizontal direction to ensure the normal operation of the extrusion block 21.

[0031] Both the left and right sides of the crusher main body 1 are fixedly connected with housing 37. A notch corresponding to the first belt 34 is provided at the top end of the right housing 37; During operation, the housing 37 is located on both the left and right sides of the crusher main body 1, which can provide protection for the driven pulley 35, the second belt 49, and the driving pulley 50. A notch is also provided on the right housing 37 to ensure that the right first belt 34 can smoothly pass through the housing 37.

[0032] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification is only to illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed.

Claims

1. A urea crusher with a feeding auxiliary device, comprising a crusher main body (1), characterized in that: At the top of the crusher main body (1), a feed frame (20) is fixedly connected. On both the left and right sides of the feed frame (20), movable grooves (27) are provided. Inside the movable grooves (27), fixing rods (26) are slidably connected. The fixing rods (26) are fixedly connected to the extrusion blocks (21). The extrusion blocks (21) do not contact the inner wall of the feed frame (20). On both the left and right sides of the extrusion blocks (21), auxiliary feeding mechanisms are provided. The auxiliary feeding mechanisms are used to drive the extrusion blocks (21) to reciprocate, so that the extrusion blocks (21) can extrude the agglomerated urea particles. Inside the extrusion blocks (21), a stirring mechanism is provided. The stirring mechanism is used to drive the rotating rod (45) to rotate, so as to stir the urea particles. Below the extrusion blocks (21), two sets of vibrating plates (39) are provided. On both sides of the vibrating plates (39), a shaking mechanism is provided. The shaking mechanism is used to shake the vibrating plates (39) to reduce the blockage of urea particles at the vibrating plates (39).

2. The urea crusher with a feeding auxiliary device according to claim 1, wherein: The auxiliary feeding mechanism includes fixing blocks (28). The fixing blocks (28) are fixedly connected to the sides of the fixing rods (26) away from the extrusion blocks (21). The fixing blocks (28) are designed in a U shape. The inner wall of the fixing blocks (28) contacts the convex posts (29). The convex posts (29) are fixedly connected to the turntables (31). On the side of the turntables (31) away from the convex posts (29), driving wheels (32) are fixedly connected. A first belt (34) is sleeved on the driving wheels (32). The bottom end of the first belt (34) is sleeved on the rotating shaft of the rotating rollers (33). The rotating rollers (33) are rotatably connected inside the crusher main body (1). The driving wheels (32) are rotatably connected to the support frames (47). The bottom ends of the support frames (47) are fixedly connected to the top of the crusher main body (1). There are two sets of rotating rollers (33). On one side of the rotating rollers (33), driven belt pulleys (35) are fixedly connected. A driving mechanism is provided on the driven belt pulleys (35).

3. The urea crusher with a feeding auxiliary device according to claim 2, characterized in that: The driving mechanism includes two sets of driving motors (36). The bottom ends of the driving motors (36) are fixedly connected to the extension plates (48). The extension plates (48) are fixedly connected to the rear end of the crusher main body (1). The output shafts of the driving motors (36) are fixedly connected to the driving belt pulleys (50). A second belt (49) is sleeved on the driving belt pulleys (50). The top end of the second belt (49) is sleeved on the driven belt pulleys (35).

4. The urea grinder with a feeding auxiliary device according to claim 1, wherein: The stirring mechanism includes multiple groups of connecting blocks (46). The connecting blocks (46) are fixedly connected inside the extrusion block (21). The inside of the extrusion block (21) is designed to be hollow. The rotating rod (45) is provided with helical lines. There are multiple groups of the rotating rods (45). The front and rear sides of the rotating rod (45) are rotatably connected to the inner wall of the feeding frame (20). The rotating rod (45) penetrates the extrusion block (21). Multiple groups of stirring rods (44) are fixedly connected to the rotating rod (45). The stirring rods (44) are located at positions close to the front and rear sides of the rotating rod (45).

5. The urea grinder with a feed assisting device according to claim 1, wherein: The shaking mechanism includes connecting plates (41). There are two groups of the connecting plates (41). The connecting plates (41) are fixedly connected to the left and right sides of the vibrating plate (39). Two groups of guide posts (40) are inserted into the connecting plates (41). The bottom end of the connecting plate (41) is fixedly connected with a spring (38). The bottom end of the spring (38) is fixedly connected to the top end of the crusher main body (1). The spring (38) is sleeved on the guide post (40). The guide post (40) is designed in a T shape. The top end of the connecting plate (41) is close to the turntable (31). A convex block (30) is fixedly connected to the top end of the turntable (31). Through holes (42) are opened on the left and right sides of the feeding frame (20).

6. The urea crusher with a feeding auxiliary device according to claim 2, characterized in that: Both the left and right sides of the top end of the extrusion block (21) are fixedly connected with support plates (23). The cross section of the support plate (23) is designed in an L shape. Multiple groups of ball bearings (24) are rotatably connected to the top end of the support plate (23). The bottom ends of the ball bearings (24) are in contact with the top end of the feeding frame (20).

7. The urea pulverizer with a feeding auxiliary device according to claim 6, characterized in that: A top block (22) is fixedly connected to the top end of the extrusion block (21). The cross section of the top block (22) is triangular in design. The top block (22) is made of plastic material.

8. The urea grinder with a feeding auxiliary device according to claim 6, characterized in that: The front and rear sides of the support plate (23) are fixedly connected to the mounting plate (43). The bottom end of the mounting plate (43) is in contact with the top end of the feeding frame (20).

9. The urea crusher with a feeding auxiliary device according to claim 8, characterized in that: A limiting ring (25) is fixedly connected to the fixed rod (26). The limiting ring (25) is in contact with the feeding frame (20). The diameter of the limiting ring (25) is larger than the width of the movable slot (27).

10. The urea crusher with a feeding auxiliary device according to claim 2, characterized in that: Both the left and right sides of the crusher main body (1) are fixedly connected with casing (37). A notch corresponding to the first belt (34) is opened at the top end of the right casing (37).

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