Raw material crushing device for chemical production

Abstract

The raw material crushing device for chemical production comprises a crushing box and a filtering box, the front side of the crushing box is fixedly connected with a second mounting frame, the outer side of the second mounting frame is fixedly connected with a second motor, and the power end of the second motor is fixedly connected with a second rotating shaft; a third rotating shaft is rotationally connected between the second mounting frame and the crushing box, second connecting gears which are meshed with each other are fixedly connected to the outer sides of the second rotating shaft and the third rotating shaft, the third rotating shaft is sleeved with a transmission belt, and a fourth rotating shaft is sleeved with the other end of the transmission belt; one end of the fourth rotating shaft is rotationally connected with the second mounting frame, the second rotating shaft and the fourth rotating shaft penetrate through the crushing box to be fixedly connected with a rotating disc, the other end of the rotating disc is fixedly connected with an eccentric shaft, and the other end of the eccentric shaft is rotationally connected with a lifting table. And the situation that objects are light and cannot smoothly fall into the crushing roller is prevented.

Description

Technical Field

[0001] This utility model relates to the field of crushing device technology, specifically a raw material crushing device for chemical production. Background Technology

[0002] In chemical production processes, many raw materials (such as resin particles, light minerals, and loose chemical intermediates) need to be crushed to meet specific particle size requirements before they can enter subsequent reaction, mixing, or molding processes. Therefore, raw material crushing equipment is one of the key pieces of equipment in chemical production, and its crushing efficiency and crushing effect directly affect the continuity of the entire production process and the quality of the final product.

[0003] Currently, existing chemical raw material crushing equipment typically introduces raw materials into the crushing chamber through a feed inlet, and uses one or more pairs of relatively rotating crushing rollers to squeeze and shear the raw materials to achieve crushing. However, in actual production, some chemical raw materials, due to their light weight, loose volume, or certain buoyancy, tend to accumulate below the feed inlet or above the crushing rollers after being fed into the crushing equipment, failing to fall smoothly into the crushing area between the rollers. This not only reduces crushing efficiency but may also cause blockage at the feed inlet due to excessive material accumulation, requiring frequent manual intervention for cleaning, increasing operating costs, and also affecting the continuity of production.

[0004] In addition, the existing crushing devices lack adequate auxiliary feeding structures for the aforementioned lightweight raw materials. Most rely solely on the weight of the raw materials themselves to fall, making it difficult to adapt to the feeding requirements of different lightweight raw materials and thus limiting the applicability of the crushing devices.

[0005] Therefore, developing a crushing device that can effectively compress the input light chemical raw materials and ensure their smooth entry into the crushing roller is of great significance for improving chemical production efficiency and reducing equipment failures. Utility Model Content

[0006] The purpose of this invention is to provide a raw material crushing device for chemical production, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a raw material crushing device for chemical production, comprising a crushing box and a filter box. A second mounting frame is fixedly connected to the front side of the crushing box. A second motor is fixedly connected to the outer side of the second mounting frame. A second rotating shaft is fixedly connected to the power end of the second motor. A third rotating shaft is rotatably connected between the second mounting frame and the crushing box. A meshing second connecting gear is fixedly connected to the outer side of the second rotating shaft and the third rotating shaft. A transmission belt is sleeved on the outer side of the third rotating shaft. A fourth rotating shaft is sleeved inside the other end of the transmission belt. One end of the fourth rotating shaft is rotatably connected to the second mounting frame. A rotating disk is fixedly connected to the second rotating shaft and the fourth rotating shaft through the crushing box. An eccentric shaft is fixedly connected to the other end of the rotating disk. A lifting platform is rotatably connected to the other end of the eccentric shaft. Four sets of damping rods are fixedly connected to the lower part of the lifting platform. A pressure plate is fixedly connected to the other end of the damping rod. A spring is sleeved on the outer side of the damping rod. The two ends of the spring are fixedly connected to the pressure plate and the lifting platform, respectively.

[0008] Preferably, a connecting shaft is fixedly connected to the other side of the lifting platform, and a rotating groove is provided on the inner wall of the crushing box, with the connecting shaft rotatably connected inside the rotating groove.

[0009] Preferably, a lifting frame is slidably connected inside the upper side of the crushing box, a limiting plate is fixedly connected to the lower part of the lifting frame, a limiting groove is started inside the lifting platform, and the limiting plate is slidably connected inside the limiting groove.

[0010] Preferably, two sets of first rotating shafts are rotatably connected to the lower side inside the crushing box. Crushing rollers are fixedly connected to the outer side of the first rotating shafts. The first rotating shafts penetrate the outer side of the crushing box and are fixedly connected to the meshing first connecting gears. A first mounting frame is fixedly connected to the outer side of the crushing box. A first motor is fixedly connected to the outer side of the first mounting frame. One side of the first rotating shaft is fixedly connected to the first motor, and the other side of the first rotating shaft is rotatably connected to the first mounting frame.

[0011] Preferably, a feed plate is fixedly connected to the upper side of the crushing box, the lower side of the feed plate extends into the interior of the crushing box, a first inclined platform is provided at the lower part of the pressure plate, and a second inclined platform is fixedly connected to both sides inside the crushing box, with the second inclined platform closely attached to both sides of the crushing roller.

[0012] Preferably, a filter screen is fixedly connected to the lower part of the filter box, four sets of connecting plates are fixedly connected to the upper part of the filter box, the filter box is fixedly connected to the crushing box through the connecting plates, and four sets of support legs are fixedly connected to the lower part of the crushing box.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention uses a second motor to drive a second rotating shaft, a second connecting gear to drive a third rotating shaft to rotate in the opposite direction, and a transmission belt to drive a fourth rotating shaft, causing the two rotating discs to rotate. An eccentric shaft drives a lifting platform to move up and down, and the lifting frame moves up and down along the crushing box. Limit plates slide along limit grooves to ensure the lifting platform remains horizontal during rotation. When the lifting platform rotates to both sides, the material to be crushed is fed onto the upper part of the crushing roller along the feed plate. Then, the lifting platform rotates to the inner side, and a damping rod drives a pressure plate to press the material. A spring, in conjunction with the damping rod, adjusts the pressure to ensure the material can smoothly enter the crushing roller. This system compresses the material fed into the crushing device, preventing lighter materials from failing to fall smoothly into the crushing roller. Attached Figure Description

[0015] Figure 1 This is a first-view three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a second-view three-dimensional structural cross-sectional view of the present invention;

[0017] Figure 3 This is a schematic diagram of the gear structure from a third-view perspective of the present invention;

[0018] Figure 4 This is a cross-sectional view of the fourth-view lifting platform structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the fifth-view filter box structure of this utility model.

[0020] In the diagram: 1. Crushing box; 2. Feed plate; 3. First mounting frame; 4. First motor; 5. First rotating shaft; 6. First connecting gear; 7. Crushing roller; 8. Support leg; 9. Second mounting frame; 10. Second motor; 11. Second rotating shaft; 12. Third rotating shaft; 13. Second connecting gear; 14. Transmission belt; 15. Fourth rotating shaft; 16. Rotating disc; 17. Eccentric shaft; 18. Lifting platform; 19. Damping rod; 20. Spring; 21. Pressure plate; 22. Connecting shaft; 23. Rotating groove; 24. Limiting groove; 25. Limiting plate; 26. Lifting frame; 27. First inclined platform; 28. Second inclined platform; 29. ​​Filter box; 30. Filter screen; 31. Connecting plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-5 This utility model provides a technical solution: a raw material crushing device for chemical production, including a crushing box 1 and a filter box 29. A second mounting frame 9 is fixedly welded to the front side of the crushing box 1. A second motor 10 is mounted on the outer flange of the second mounting frame 9. A second rotating shaft 11 is connected to the power end of the second motor 10 via a coupling. A third rotating shaft 12 is rotatably mounted between the second mounting frame 9 and the crushing box 1. A meshing second connecting gear 13 is fixedly welded to the outer sides of the second rotating shaft 11 and the third rotating shaft 12, causing the second rotating shaft 11 and the third rotating shaft 12 to rotate in opposite directions. A transmission belt 14 is sleeved on the outer side of the third rotating shaft 12. A fourth rotating shaft 15 is sleeved inside the other end of the transmission belt 14. One end of the fourth rotating shaft 15 is rotatably connected to the second mounting frame 9. The second rotating shaft 11 and the fourth rotating shaft 15 penetrate the crushing box. A rotating disk 16 is fixedly welded to one end of the rotating disk 16. An eccentric shaft 17 is fixedly welded to the other end of the eccentric shaft 17. A lifting platform 18 is rotatably mounted on the other end of the eccentric shaft 17. A second motor 10 drives a second rotating shaft 11 to rotate. A second connecting gear 13 drives a third rotating shaft 12 to rotate in the opposite direction. A transmission belt 14 drives a fourth rotating shaft 15 to rotate, causing the rotating disks 16 on both sides to rotate. The lifting platform 18 can move up and down through the eccentric shaft 17. Four sets of damping rods 19 are fixedly welded to the lower part of the lifting platform 18. A pressure plate 21 is fixedly welded to the other end of the damping rod 19. A spring 20 is sleeved on the outside of the damping rod 19. The two ends of the spring 20 are fixedly welded to the pressure plate 21 and the lifting platform 18, respectively. The lifting platform 18 drives the pressure plate 21 to press the object through the damping rods 19. The spring 20 can adjust the pressing force in conjunction with the damping rods 19.

[0023] A connecting shaft 22 is fixedly welded to the other side of the lifting platform 18. A rotating groove 23 is provided on the inner wall of the crushing box 1. The connecting shaft 22 is rotatably connected to the inside of the rotating groove 23 to ensure the balance of the other end of the lifting platform 18. A lifting frame 26 is slidably installed inside the upper side of the crushing box 1. A limiting piece 25 is fixedly welded to the lower part of the lifting frame 26. A limiting groove 24 is provided inside the lifting platform 18. The limiting piece 25 is slidably connected to the inside of the limiting groove 24. The lifting frame 26 moves up and down along the crushing box 1 and slides along the limiting groove 24 through the limiting piece 25 to ensure that the lifting platform 18 remains horizontal at all times when rotating. Two sets of first rotating shafts 5 are rotatably installed on the lower side inside the crushing box 1. A crushing roller 7 is fixedly welded to the outside of the first rotating shaft 5. The first rotating shaft 5 penetrates the outside of the crushing box 1 and is fixedly welded to the meshing first connecting gear 6. A first mounting frame 3 is fixedly welded to the outside of the first mounting frame 3. A first motor 4 is installed on the flange outside the first mounting frame 3. One side of the first rotating shaft 5 is connected to the first motor 4 by a coupling. One side of the first rotating shaft 5 is rotatably connected to the first mounting frame 3. The first motor 4 drives the first rotating shaft 5 on one side to rotate, and drives the first rotating shaft 5 on the other side to rotate through the first connecting gear 6, so that the crushing rollers 7 on both sides rotate in opposite directions to crush the items that fall into them. The upper side of the crushing box 1 is fixedly welded with a feed plate 2, and the lower side of the feed plate 2 extends into the interior of the crushing box 1 to ensure that the crushed items fall to the upper part of the crushing rollers 7. The lower part of the pressure plate 21 is provided with a first inclined platform 27. The two sides of the interior of the crushing box 1 are fixedly welded with second inclined platforms 28. The second inclined platforms 28 are close to the two sides of the crushing rollers 7 to prevent the items to be crushed from falling to the two sides and can slide onto the crushing rollers 7. The lower part of the filter box 29 is fixedly welded with a filter screen 30, and the upper part of the filter box 29 is fixedly welded with four sets of connecting plates 31. The filter box 29 is fixedly welded to the crushing box 1 through the connecting plates 31. By removing the filter box 29, the incompletely crushed items can be recycled. The lower part of the crushing box 1 is fixedly welded with four sets of support legs 8.

[0024] Working principle: In use, the first motor 4 drives the first rotating shaft 5 on one side to rotate, which in turn drives the first rotating shaft 5 on the other side to rotate via the first connecting gear 6. This causes the two crushing rollers 7 to rotate in opposite directions, crushing the items that fall into them. The second motor 10 drives the second rotating shaft 11 to rotate, which in turn drives the third rotating shaft 12 to rotate in the opposite direction via the second connecting gear 13. The fourth rotating shaft 15 is driven to rotate via the transmission belt 14, causing the two rotating discs 16 to rotate. The eccentric shaft 17 drives the lifting platform 18 to move up and down. 26 moves up and down along the crushing box 1 and slides along the limiting groove 24 through the limiting plate 25 to ensure that the lifting platform 18 remains horizontal when rotating. When the lifting platform 18 rotates to both sides, the items to be crushed are put into the upper part of the crushing roller 7 along the feed plate 2. Then the lifting platform 18 rotates to the inner side. The lifting platform 18 drives the pressure plate 21 to press the items through the damping rod 19. The spring 20, in conjunction with the damping rod 19, can adjust the pressure to ensure that the items to be crushed can smoothly enter the crushing roller 7. By removing the filter box 29, the items that are not completely crushed can be recycled.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A raw material crushing device for chemical production, comprising a crushing box (1) and a filter box (29), characterized in that: A second mounting bracket (9) is fixedly connected to the front side of the crushing box (1). A second motor (10) is fixedly connected to the outside of the second mounting bracket (9). A second rotating shaft (11) is fixedly connected to the power end of the second motor (10). A third rotating shaft (12) is rotatably connected between the second mounting bracket (9) and the crushing box (1). A meshing second connecting gear (13) is fixedly connected to the outside of the second rotating shaft (11) and the third rotating shaft (12). A transmission belt (14) is sleeved on the outside of the third rotating shaft (12). A fourth rotating shaft (15) is sleeved inside the other end of the transmission belt (14). 15) One end is rotatably connected to the second mounting bracket (9). The second rotating shaft (11) and the fourth rotating shaft (15) penetrate the crushing box (1) and are fixedly connected to the rotating disk (16). The other end of the rotating disk (16) is fixedly connected to the eccentric shaft (17). The other end of the eccentric shaft (17) is rotatably connected to the lifting platform (18). The lower part of the lifting platform (18) is fixedly connected to four sets of damping rods (19). The other end of the damping rod (19) is fixedly connected to the pressure plate (21). The damping rod (19) is sleeved with a spring (20). The two ends of the spring (20) are fixedly connected to the pressure plate (21) and the lifting platform (18) respectively.

2. The raw material crushing device for chemical production according to claim 1, characterized in that: A connecting shaft (22) is fixedly connected to the other side of the lifting platform (18), and a rotating groove (23) is provided on the inner wall of the crushing box (1). The connecting shaft (22) is rotatably connected to the inside of the rotating groove (23).

3. The raw material crushing device for chemical production according to claim 1, characterized in that: The upper side of the crushing box (1) is slidably connected to a lifting frame (26), and the lower part of the lifting frame (26) is fixedly connected to a limiting piece (25). The lifting platform (18) has a limiting groove (24) inside, and the limiting piece (25) is slidably connected inside the limiting groove (24).

4. The raw material crushing device for chemical production according to claim 1, characterized in that: The crushing box (1) has two sets of first rotating shafts (5) rotatably connected to its lower side. The crushing roller (7) is fixedly connected to the outside of the first rotating shaft (5). The first rotating shaft (5) penetrates the outside of the crushing box (1) and is fixedly connected to a first connecting gear (6) that meshes with each other. The crushing box (1) has a first mounting frame (3) fixedly connected to its outside. The first motor (4) is fixedly connected to the outside of the first mounting frame (3). The first rotating shaft (5) on one side is fixedly connected to the first motor (4), and the first rotating shaft (5) on the other side is rotatably connected to the first mounting frame (3).

5. The raw material crushing device for chemical production according to claim 1, characterized in that: The upper side of the crushing box (1) is fixedly connected to the feed plate (2), the lower side of the feed plate (2) extends into the interior of the crushing box (1), the lower part of the pressure plate (21) is provided with a first inclined platform (27), and the two sides inside the crushing box (1) are fixedly connected to a second inclined platform (28), which is close to both sides of the crushing roller (7).

6. The raw material crushing device for chemical production according to claim 1, characterized in that: The filter box (29) is fixedly connected to a filter screen (30) at the bottom and four sets of connecting plates (31) are fixedly connected to the top of the filter box (29). The filter box (29) is fixedly connected to the crushing box (1) through the connecting plates (31). The crushing box (1) is fixedly connected to four sets of support legs (8) at the bottom.

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