A particle crushing device

Abstract

The utility model provides a particle crushing device, which relates to the field of crushing devices, including: a primary crushing box, a secondary crushing box and a driving assembly, wherein a first motor is installed at the upper end of the primary crushing box, and a main shaft is connected to the lower end of the first motor, and a material distribution plate and a first crushing knife are installed on the outer side of the main shaft, a driven shaft is arranged on both sides of the main shaft, and a second crushing knife is connected to the outer side of the driven shaft, the driving assembly is connected to the lower end of the primary crushing box, and the driving assembly includes a sealing box, and a main gear and a reversing gear meshed on the outer side of the main gear and a slave gear meshed on the outer side of the reversing gear are arranged inside the sealing box, and the secondary crushing box is connected to the lower side of the driving assembly, and two crushing rollers are arranged inside the secondary crushing box. The utility model solves the problems of uniformity deviation of crushing and low crushing efficiency in the existing epoxy resin particle crushing device.

Description

Technical Field

[0001] The utility model relates to the technical field of crushing devices, in particular to a particle crushing device. Background Art

[0002] During the particle size control process of epoxy resin production, the initially crushed small flake materials need to be further crushed to form fine granular materials suitable for later stamping and molding. After searching, the prior art (application number: CN202221597522.0) records "a new type of epoxy resin particle crushing device, belonging to the technical field of crushing equipment, characterized in that: the power device includes a support column, a connecting cavity, a servo motor, a connecting cavity and a vertical spindle, a connecting cavity is provided on the upper part of the support column, a servo motor is provided on the side of the connecting cavity, the output shaft of the servo motor is connected to the driving wheel, a vertical spindle is provided on the connecting cavity, the upper and lower ends of the vertical spindle pass through the connecting cavity, a protective bearing is provided on the vertical spindle passing through the connecting cavity, a driven wheel is provided on the upper end of the vertical spindle, and the driving wheel and the driven wheel are connected by a transmission belt, a feeding cavity is provided at the lower part of the connecting cavity, a crushing cavity is provided at the lower part of the feeding cavity, a crushing cavity is inserted at the lower end of the vertical spindle, a fixedly connected crushing knife is provided at the lower end of the vertical spindle, a punching plate is provided at the lower part of the crushing cavity, and an annular screen is provided on the upper surface of the punching plate, which solves the technical problems of uneven crushing of existing equipment, poor molding degree and inconvenient maintenance, and is mainly used in epoxy resin crushing. "

[0003] However, although the epoxy resin particle crushing device in the prior art has achieved the crushing effect of epoxy resin particles, it still has some shortcomings: the existing epoxy resin particle crushing device has only one crushing process in the vertical feeding process. Since the crushing knife rotates and cuts in the horizontal direction, a rotating gap will inevitably be generated, and it only rotates in one direction. Therefore, there will inevitably be a part of the particles directly falling on the through-hole plate through the gap, resulting in the inability to crush, and then resulting in deviations in crushing uniformity and efficiency; secondly, the particles falling through the feed port will fall along the inner wall of the crushing chamber, resulting in the inability to diffuse to the upper side of the crushing knife and then fall, further resulting in deviations in crushing uniformity. Utility Model Content

[0004] In order to overcome the defects of the prior art, a particle crushing device is now provided to solve the problems of uniformity deviation of crushing and low crushing efficiency in the existing epoxy resin particle crushing device.

[0005] To achieve the above-mentioned purpose, a particle crushing device is provided, including: a primary crushing box, a secondary crushing box and a driving assembly, a first motor is installed at the upper end of the primary crushing box, and a main shaft is connected to the lower end of the first motor, and a material distribution plate and a first crushing knife are installed on the outer side of the main shaft, a driven shaft is provided on both sides of the main shaft, and a second crushing knife is connected to the outer side of the driven shaft, the driving assembly is connected to the lower end of the primary crushing box, and the driving assembly includes a sealing box, and a main gear and a reversing gear meshed with the outer side of the main gear, and a slave gear meshed with the outer side of the reversing gear are provided inside the sealing box, the secondary crushing box is connected to the lower side of the driving assembly, and two crushing rollers are provided inside the secondary crushing box, and the outer end of one of the crushing rollers is connected to the second motor, and a gear set is connected to the outer ends of the two crushing rollers.

[0006] Furthermore, a feed port is provided at the upper end of the primary crushing box, and a material distribution plate is located at the lower side of the feed port, and a vertical through hole is opened inside the material distribution plate.

[0007] Furthermore, the upper end of the driven shaft is rotatably connected to an end plate, and the end plate is fixed to the inner wall of the primary crushing box.

[0008] Furthermore, a connecting shell is provided between the primary crushing box and the secondary crushing box, and an inclined porous plate is connected to the inner wall of the connecting shell, and the lower end of the porous plate is connected to the outer wall of the sealing box.

[0009] Furthermore, a guide plate is provided on the inner side of the secondary crushing box, and the guide plate is set to a conical cylinder structure, and the guide plate is located on the lower side of the porous plate.

[0010] Furthermore, the main gear is fixed on the outside of the main shaft, the slave gear is fixed on the outside of the driven shaft, and the shaft connected to the center of the reversing gear is fixed on the bottom of the sealing box.

[0011] Furthermore, the gear set is configured as two meshing gears, and the two gears are respectively connected to the same side of the crushing roller, and the gear set is located outside the secondary crushing box, and a lower hopper is connected to the lower end of the secondary crushing box.

[0012] The beneficial effects of the utility model are:

[0013] 1. Start the first motor to drive the main shaft to rotate, and then drive the driven shaft to rotate through the main gear, reversing gear and slave gear included in the driving assembly, so that the first crushing knife and the second crushing knife form a shearing effect of counter-rotation, so as to achieve the first crushing of the fallen epoxy resin particles, and then the uncrushed particles enter the secondary crushing box through the porous plate, and the two crushing rollers are driven to rotate in the opposite direction through the second motor and the gear group, so that the particles pass through the guide plate and enter the gap of the crushing roller for re-crushing, thereby ensuring the uniformity of crushing;

[0014] 2. When the epoxy resin particles are introduced into the primary crushing box through the feed port, the main shaft is driven by the first motor to rotate the material distribution plate, thereby breaking up the falling particles and filling the upper space of the crushing knife. This increases the contact area with the crushing knife when the particles fall, avoiding the accumulation and falling of particles. Therefore, the feeding speed can be accelerated, thereby improving the crushing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view cross-sectional structural schematic diagram of an embodiment of the utility model.

[0016] Figure 2 It is a schematic diagram of the top view of the material equalizing plate according to an embodiment of the utility model.

[0017] Figure 3 This is a schematic diagram of the structure of the drive assembly of an embodiment of the utility model.

[0018] Figure 4 It is a schematic diagram of the top view of the secondary crushing box according to an embodiment of the utility model.

[0019] In the figure: 1. primary crushing box; 11. first motor; 12. main shaft; 13. material distribution plate; 131. through hole; 14. first crushing knife; 15. end plate; 16. driven shaft; 17. second crushing knife; 18. feed inlet; 19. porous plate; 2. secondary crushing box; 21. second motor; 22. crushing roller; 23. guide plate; 24. gear set; 3. driving assembly; 31. sealing box; 32. main gear; 32. reversing gear; 34. slave gear. DETAILED DESCRIPTION

[0020] Reference Figures 1 to 4 As shown, the utility model provides a particle crushing device, including: a primary crushing box 1, a secondary crushing box 2 and a driving component 3.

[0021] Specifically, a first motor 11 is installed at the upper end of the first crushing box 1, and a main shaft 12 is connected to the lower end of the first motor 11, and a material distribution plate 13 and a first crushing knife 14 are installed on the outer side of the main shaft 12, a driven shaft 16 is provided on both sides of the main shaft 12, and a second crushing knife 17 is connected to the outer side of the driven shaft 16, the driving assembly 3 is connected to the lower end of the first crushing box 1, and the driving assembly 3 includes a sealing box 31, and a main gear 32 and a reversing gear 33 meshed on the outer side of the main gear 32, and a slave gear 34 meshed on the outer side of the reversing gear 33 are provided inside the sealing box 31, the secondary crushing box 2 is connected to the lower side of the driving assembly 3, and two crushing rollers 22 are provided inside the secondary crushing box 2, and the outer end of one of the crushing rollers 22 is connected to the second motor 21, and the outer ends of the two crushing rollers 22 are connected to a gear set 24.

[0022] In this embodiment, the primary crushing box 1, the secondary crushing box 2 and the driving assembly 3 constitute the main structure of the particle crushing device involved in this application.

[0023] In this embodiment, the first crushing blade 14 and the second crushing blade 17 have an overlapping portion in the horizontal rotation plane, so that a shearing effect of counter-rotation is obtained.

[0024] As a preferred embodiment, the upper end of the sealing box 31 is configured as a conical slope to facilitate outward diversion of falling particles.

[0025] Specifically, a feed port 18 is provided at the upper end of the primary crushing box 1, and a material balancing plate 13 is located at the lower side of the feed port 18, and a vertical through hole 131 is opened inside the material balancing plate 13, and the upper end of the driven shaft 16 is rotatably connected to the end plate 15, and the end plate 15 is fixed to the inner wall of the primary crushing box 1, and a connecting shell is provided between the primary crushing box 1 and the secondary crushing box 2, and an inclined porous plate 19 is connected to the inner wall of the connecting shell, and the lower end of the porous plate 19 is connected to the outer wall of the sealing box 31.

[0026] As a preferred embodiment, by providing the porous plate 19 , on the one hand, it is convenient to connect with the sealing box 31 so that the sealing box 31 can be fixed, and on the other hand, the particles that have undergone the first crushing can pass through the holes of the porous plate 19 .

[0027] Specifically, a guide plate 23 is provided on the inner side of the secondary crushing box 2, and the guide plate 23 is set to a conical cylinder structure, and the guide plate 23 is located on the lower side of the porous plate 19, the main gear 32 is fixed on the outer side of the main shaft 12, and the slave gear 34 is fixed on the outer side of the driven shaft 16, and the shaft connected to the center of the reversing gear 33 is fixed to the bottom of the sealing box 31, the gear set 24 is set to two gears that mesh with each other, and the two gears are respectively connected to the same side of the crushing roller 22, and the gear set 24 is located on the outside of the secondary crushing box 2, and a lower hopper is connected to the lower end of the secondary crushing box 2.

[0028] As a preferred embodiment, a conical guide plate 23 is provided to guide the particles to the gap between the two crushing rollers 22, so that the particles crushed by the crushing rollers 22 are crushed more thoroughly.

[0029] As a preferred embodiment, the gear set 24 is provided so that the two crushing rollers 22 can rotate synchronously to achieve the effect of crushing.

[0030] When in use, the first motor is started to drive the main shaft to rotate, and then the main gear, reversing gear and slave gear included in the driving assembly are used to drive the driven shaft to rotate, so that the first crushing knife and the second crushing knife form a shearing effect of counter-rotation, thereby achieving the first crushing of the fallen epoxy resin particles, and then the uncrushed particles pass through the porous plate into the secondary crushing box, and the two crushing rollers are driven to rotate in the opposite direction by the second motor and the gear set, so that the particles pass through the guide plate and enter the gap of the crushing roller for re-crushing, thereby ensuring the uniformity of the crushing, and then the particles that have been crushed for the second time are discharged from the lower hopper.

[0031] The particle crushing device of the utility model can effectively solve the problems of uniformity deviation and low crushing efficiency of the existing epoxy resin particle crushing device. It improves the uniformity of epoxy resin particle crushing and enhances the crushing effect on the basis of the existing particle crushing device technology, while improving the feeding and crushing efficiency.

Claims

1. A particle crushing device, comprising: A primary crushing box (1), a secondary crushing box (2) and a driving assembly (3), characterized in that: a first motor (11) is installed at the upper end of the primary crushing box (1), and a main shaft (12) is connected to the lower end of the first motor (11), and a material distribution plate (13) and a first crushing knife (14) are installed on the outer side of the main shaft (12), a driven shaft (16) is provided on both sides of the main shaft (12), and a second crushing knife (17) is connected to the outer side of the driven shaft (16), and the driving assembly (3) is connected to the lower end of the primary crushing box (1), and the driving assembly (3) is connected to the lower end of the primary crushing box (1), and the driving assembly (3) is connected to the lower end of the primary crushing box (1), and the driving assembly (3) is connected to the lower end of the primary crushing box (1). The component (3) comprises a sealing box (31), wherein a main gear (32) and a reversing gear (33) meshed with the outside of the main gear (32) are arranged inside the sealing box (31), and a slave gear (34) meshed with the outside of the reversing gear (33); the secondary crushing box (2) is connected to the lower side of the driving component (3), and two crushing rollers (22) are arranged inside the secondary crushing box (2), and the outer end of one of the crushing rollers (22) is connected to the second motor (21), and the outer ends of the two crushing rollers (22) are connected to a gear set (24).

2. A particle crushing device according to claim 1, characterized in that: The upper end of the primary crushing box (1) is provided with a feed opening (18), and the material distribution plate (13) is located at the lower side of the feed opening (18), and a vertical through hole (131) is opened inside the material distribution plate (13).

3. A particle crushing device according to claim 1, characterized in that: The upper end of the driven shaft (16) is rotatably connected to an end plate (15), and the end plate (15) is fixed to the inner wall of the primary crushing box (1).

4. A particle crushing device according to claim 1, characterized in that: A connecting shell is provided between the primary crushing box (1) and the secondary crushing box (2), and an inclined porous plate (19) is connected to the inner wall of the connecting shell, and the lower end of the porous plate (19) is connected to the outer wall of the sealing box (31).

5. A particle crushing device according to claim 1, characterized in that: A guide plate (23) is provided on the inner side of the secondary crushing box (2), and the guide plate (23) is configured as a conical cylinder structure, and the guide plate (23) is located on the lower side of the porous plate (19).

6. A particle crushing device according to claim 1, characterized in that: The main gear (32) is fixed on the outside of the main shaft (12), the slave gear (34) is fixed on the outside of the driven shaft (16), and the shaft connected to the center of the reversing gear (33) is fixed on the bottom of the sealing box (31).

7. A particle crushing device according to claim 1, characterized in that: The gear set (24) is configured as two mutually meshing gears, and the two gears are respectively connected to the same side of the crushing roller (22), and the gear set (24) is located outside the secondary crushing box (2), and a lower hopper is connected to the lower end of the secondary crushing box (2).

Images