Crushing device
By combining the crushing process of coarse crushing and fine crushing stages and utilizing the combined design of leakage ring and turntable, the problem of incomplete crushing in existing devices is solved, efficient and uniform crushing effect is achieved, and maintenance costs are reduced.
Patent Information
- Application Number
- CN202422395179.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2034-09-30
AI Technical Summary
The existing raw material crushing equipment is difficult to meet the use requirements. The crushed bamboo powder, stone powder, plastic powder and other powders are still mixed with a lot of incompletely crushed components, which affects the quality of the finished product.
The crushing process combines coarse crushing and fine crushing. The material is initially processed by the coarse crushing mechanism and then enters the fine crushing box for finer crushing. The combination of the leakage ring and the turntable is used to control the particle size. The design of the crushing block and the cutting roller ensures that the material is completely crushed.
It improves the crushing efficiency and quality, ensures the uniform particle size of the final product, reduces dust leakage and material loss, and reduces maintenance costs.
Smart Images
Figure CN223312171U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of crushing devices, in particular to a crushing device. Background Art
[0002] Wood is the main raw material in the furniture and construction industries. The production process is to press integrated wall panels using bamboo powder, stone powder and plastic powder. The preparation of powders such as bamboo powder, stone powder and plastic powder requires the crushing of bamboo, lime and plastic.
[0003] However, the existing raw material crushing devices are difficult to crush to the required particle size. The crushed bamboo powder, stone powder, plastic powder and other powders are still mixed with a lot of incompletely crushed components, which affects the quality of the finished product. Utility Model Content
[0004] In order to overcome at least one of the above-mentioned defects of the prior art, the present invention provides a crushing device to solve the problem that powders such as bamboo powder, stone powder and plastic powder still contain a lot of impurities and are not completely crushed.
[0005] The technical solution adopted by the present invention to solve the problem is:
[0006] A grinding device comprises a support frame, on which a first motor and a fine crushing box are fixedly mounted, a powder outlet is provided at the lower end of the fine crushing box, a cover plate is rotatably connected to the fine crushing box, a feeding port is provided on the cover plate, a feeding barrel is provided on the cover plate at the feeding port, a funnel is provided above the feeding barrel, the funnel is fixedly mounted on the support frame through a first fixing frame, a coarse crushing mechanism is provided above the funnel, the coarse crushing mechanism is fixedly mounted on the support frame through a second fixing frame, a fine crushing mechanism is provided in the fine crushing box, and an input end of the fine crushing mechanism passes through the fine crushing box and is fixedly connected to the first motor.
[0007] Through the above scheme, the device combines the two-stage crushing process of coarse crushing and fine crushing, and can first perform preliminary coarse crushing on the material, and then enter the fine crushing box for finer crushing, which can improve the crushing efficiency and crushing quality.
[0008] Furthermore, the fine crushing mechanism includes a leakage ring, a rotating shaft and a turntable. The fine crushing box is connected to a cover plate with a circular opening on one side, and the fine crushing box is provided with a first limiting ring on the opposite side of the circular opening. The leakage ring is arranged in the fine crushing box, and the outer ring of one end of the leakage ring is in contact with the first limiting ring, and the outer ring of the other end is in contact with the circular opening. A sealing ring is provided on the circular opening, and the cover plate is sealed with the inner ring of the sealing ring. One end of the rotating shaft is fixedly connected to the turntable, and the other end passes through the fine crushing box and is fixedly connected to the output shaft of the first motor. The turntable is located in the middle of the leakage ring.
[0009] Through the above-mentioned further scheme, by setting up a combination of a leakage ring and a turntable, effective control of the material particle size can be achieved. After coarse crushing, the material is further broken into finer particles under the action of the high-speed rotation of the turntable. The design of the leakage ring ensures that only materials that meet certain size requirements can pass through the leakage ring, thereby ensuring that the particle size of the final product is uniform. The sealing connection between the sealing ring on the circular mouth and the cover plate effectively prevents dust from overflowing during the crushing process, improves the working environment, and also reduces material loss.
[0010] Furthermore, the fine crushing box is provided with a first limiting ring on one side thereof and a counter ring is provided on the side of the sealing ring facing the inside of the fine crushing box. The inner side of one end of the leakage ring is in contact with the outer side of the counter ring, and the inner side of the other end is in contact with the second limiting ring. A plurality of evenly arranged mounting seats are fixedly mounted on the turntable, and a crushing block is fixedly connected to the mounting seat. The two ends of the crushing block are respectively in contact with the counter ring and the sealing ring, and the bottom of the crushing block is in contact with the leakage ring. The leakage ring is provided with a plurality of evenly arranged leakage holes.
[0011] Through the above-mentioned further solution, by installing a mounting base with crushing blocks on the turntable, these crushing blocks can cut and crush the material more effectively when the turntable rotates, ensuring that the material is crushed to the required particle size. At the same time, the bottom of the crushing block is in contact with the leakage ring, which can better control the particle size of the material and ensure the consistency of the crushed product.
[0012] Furthermore, a straight slot is provided on the crushing block, a screw is provided in the straight slot, and the crushing block is fixedly connected to the mounting seat via the screw.
[0013] Through the above further solution, the crushing block can be easily installed and removed by screw fixing. When the crushing block is worn or damaged, the operator can quickly replace it with a new one, reducing downtime and maintenance costs. The position of the crushing block can be adjusted through the straight slot to adapt to different situations.
[0014] Furthermore, the coarse crushing mechanism includes a coarse crushing box, two partitions, a cutting roller, a plurality of sealing boxes and a second motor. The coarse crushing box is fixedly mounted on the support frame through a second fixing frame. The cutting roller is rotatably connected to the coarse crushing box. One end of the cutting roller passes through the coarse crushing box and is fixedly connected to the second motor. The two partitions are respectively arranged on both sides of the cutting roller. Both of the partitions are fixedly mounted in the coarse crushing box. The plurality of sealing boxes are evenly arranged below the cutting roller.
[0015] Through the above further solution, by setting the cutting roller, the material entering the coarse crushing box can be effectively preliminarily crushed. The high-speed rotation of the cutting roller helps to improve the crushing efficiency of the material. The two partitions are tilted on both sides of the cutting roller, which helps to guide the material to flow in the correct direction and avoid the accumulation of material near the cutting roller to cause blockage.
[0016] Furthermore, the cutting roller is provided with a plurality of evenly arranged cutting discs, and the two partitions are provided with a plurality of evenly arranged cutting grooves on the side facing the cutting roller, and the positions of the cutting grooves correspond to the positions of the cutting discs.
[0017] Through the above further solution, the corresponding design of the cutting disc and the cutting groove enables the cutting disc to accurately cut into the cutting groove on the partition during the rotation of the cutting roller, thereby efficiently cutting and crushing the material. This design improves the efficiency and consistency of material crushing.
[0018] Furthermore, the cutting disc is provided with a plurality of evenly arranged cutting blocks, and the cutting blocks are slidably connected in the cutting grooves.
[0019] Through the above further solution, the cutting blocks can be driven by the cutting disc to contact the material more frequently, thereby increasing the chance of material crushing and thus improving the crushing efficiency.
[0020] Furthermore, the cutting roller is provided with a plurality of cutting fans, the cutting fans are provided with a plurality of evenly arranged cutting rods, the two partitions are provided with a plurality of evenly arranged long grooves, the positions of the cutting rods correspond to the positions of the long grooves, the positions of the long grooves correspond to the positions of the sealing box, an arc groove is provided in the sealing box, the cutting rods slide in the arc grooves, and the cutting rods slide in the long grooves.
[0021] Through the above further solution, the cutting rod on the cutting fan can cooperate with the long groove on the partition when the cutting roller rotates, forming a shearing and crushing effect, so that the material can be efficiently crushed into smaller materials, and then the smaller materials can be cut into smaller particles through the cutting of the cutting disc.
[0022] Furthermore, the coarse crushing box is provided with a feeding port at the upper end and a discharging port at the lower end, the discharging port is connected to the upper end of the funnel, and a sealing cover is provided on the feeding port.
[0023] Through the above further solution, the cover design allows users to control the material input, avoiding excessive material input at one time that may cause equipment overload or blockage, which helps maintain the smooth operation of the equipment. The cover can also prevent dust generated during material crushing from spreading to the outside.
[0024] In summary, the pulverizing device provided by the present invention has the following technical effects:
[0025] 1. When the cutting roller rotates, the cutting rod on the cutting fan can cooperate with the long groove on the partition to form a shearing and crushing effect, so that the material can be efficiently crushed into smaller materials, and then the smaller materials are cut into smaller particles through the cutting of the cutting disc.
[0026] 2. The leakage hole design on the leakage ring and the coordinated use of the turntable and crushing blocks in the fine crushing box can accurately control the particle size of the final material, meet the needs of different application scenarios, and make the particle size of the final material more uniform. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for describing the embodiments.
[0028] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0029] Figure 2 This is a schematic diagram of the cover structure of the present utility model.
[0030] Figure 3 This is a schematic diagram of the explosion structure of the fine crushing mechanism of the utility model.
[0031] Figure 4 For the utility model Figure 3 Schematic diagram of the locally enlarged structure at point A in the middle.
[0032] Figure 5 It is a schematic diagram of the internal structure of the coarse crushing mechanism of the utility model.
[0033] Figure 6 It is a schematic diagram of the transverse cross-sectional structure of the coarse crushing mechanism of the present utility model.
[0034] Figure 7 For the utility model Figure 6 Schematic diagram of the locally enlarged structure at point B in the middle.
[0035] Figure 8 It is a schematic diagram of the vertical cross-section structure of the coarse crushing mechanism of the present utility model.
[0036] In the figure: 1, support frame; 11, first motor; 12, first fixed frame; 13, second fixed frame; 2, crushing box; 21, powder outlet; 22, cover plate; 221, feed port; 222, feed barrel; 23, round mouth; 231, sealing ring; 231a, second limiting ring; 24, first limiting ring; 25, back ring; 3, funnel; 4, crushing mechanism; 41, leakage ring; 411, leakage hole; 42, rotating shaft; 43, rotating disk; 43 1. Mounting seat; 432. Crushing block; 432a. Straight slot; 432b. Screw; 5. Coarse crushing mechanism; 51. Coarse crushing box; 511. Feeding port; 511a. Sealing cover; 512. Discharge port; 52. Partition; 521. Cutting slot; 522. Long slot; 53. Cutting roller; 531. Cutting disc; 531a. Cutting block; 532. Cutting fan; 532a. Cutting rod; 54. Sealing box; 541. Arc slot; 55. Second motor. DETAILED DESCRIPTION
[0037] The following will be combined with the accompanying drawings of the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.
[0038] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
[0040] Example:
[0041] refer to Figure 1 and Figure 3As shown, a crushing device includes a support frame 1, on which a first motor 11 and a fine crushing box 2 are fixedly mounted, a powder outlet 21 is provided at the lower end of the fine crushing box 2, a circular opening 23 is provided on one side of the fine crushing box 2, a first limiting ring 24 is provided on the opposite side of the circular opening 23 provided in the fine crushing box 2, a leakage ring 41 is provided in the fine crushing box 2, an outer ring of one end of the leakage ring 41 is in contact with the first limiting ring 24, and an outer ring of the other end is in contact with the circular opening 23, a sealing ring 231 is provided on the circular opening 23, a cover plate 22 is rotatably connected to one side of the circular opening 23 of the fine crushing box 2, the cover plate 22 is sealed with the inner ring of the sealing ring 231, a turntable 43 is provided in the middle of the leakage ring 41, a rotating shaft 42 is provided in the middle of the rotating shaft 4 2 one end passes through the fine crushing box 2 and is fixedly connected to the output shaft of the first motor 11. A plurality of evenly arranged leakage holes 411 are provided on the leakage ring 41. By arranging the combination of the leakage ring 41 and the turntable 43, effective control of the material particle size can be achieved. After the coarse crushing, the material is further crushed into finer particles under the high-speed rotation of the turntable 43. The design of the leakage ring 41 ensures that only materials that meet certain size requirements can pass through the leakage ring 41, thereby ensuring uniform particle size of the final product. The sealing connection between the sealing ring 231 on the circular opening 23 and the cover plate 22 effectively prevents dust from overflowing during the crushing process, improves the working environment, and also reduces material loss.
[0042] Among them, the powder outlet 21 can be connected to a material suction mechanism to change the outlet 512, and can also attract particles in the leakage hole 411 on the leakage ring 41 downward, which can further prevent the leakage hole 411 on the leakage ring 41 from being blocked by particles.
[0043] refer to Figure 2 and Figure 3 As shown, the fine crushing box 2 is provided with a first limiting ring 24 on one side thereof and a back ring 25, and a sealing ring 231 is provided with a second limiting ring 231a on the side facing the inside of the fine crushing box 2, the inner side of one end of the leakage ring 41 is in contact with the outer side of the back ring 25, and the inner side of the other end is in contact with the second limiting ring 231a, and a plurality of evenly arranged mounting seats 431 are fixedly mounted on the turntable 43, and a crushing block 432 is fixedly connected to the mounting seat 431, and the two ends of the crushing block 432 are respectively in contact with the back ring 25 and the sealing ring 231, and the bottom of the crushing block 432 is in contact with the leakage ring 41. By installing the mounting seat 431 with the crushing blocks 432 on the turntable 43, these crushing blocks 432 can cut and crush the material more effectively when the turntable 43 rotates, ensuring that the material is crushed to the required particle size. At the same time, the bottom of the crushing block 432 is in contact with the leakage ring 41, which can better control the particle size of the material and ensure the consistency of the crushed product.
[0044] Among them, reference Figure 4As shown, a straight slot 432a is provided on the crushing block 432, and a screw 432b is provided in the straight slot 432a. The crushing block 432 is fixedly connected to the mounting seat 431 through the screw 432b. The crushing block 432 can be easily installed and removed by fixing it with the screw 432b. When the crushing block 432 is worn or damaged, the operator can quickly replace it with a new crushing block 432, reducing downtime and maintenance costs. The position of the crushing block 432 can be adjusted through the straight slot 432a to adapt to different situations.
[0045] Among them, the inner and outer sides of one end of the leakage ring 41 are pressed against each other by the resisting ring 25 and the first limiting ring 24, and the inner and outer sides of the other end of the leakage ring 41 are pressed against each other by the second limiting ring 231a and the circular mouth 23, so that when the turntable 43 rotates, the leakage ring 41 can rotate according to the collision of the material, so that the leakage hole 411 on the leakage ring 41 that is blocked by a large number of particles can slowly move upward, and then the leakage ring 41 is vibrated through the collision of the material, so that the particles in the blocked leakage hole 411 can be shaken down, so that the leakage ring 41 can continuously filter particles of the appropriate size, and can also avoid the holes on the leakage ring 41 from being blocked, thereby greatly improving the crushing efficiency.
[0046] refer to Figure 1 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8 As shown, the cover plate 22 is provided with a feed port 221, a feed cylinder 222 is provided on the cover plate 22 at the feed port 221, a funnel 3 is provided above the feed cylinder 222, the funnel 3 is fixedly mounted on the support frame 1 through a first fixing frame 12, a coarse crushing box 51 is provided above the funnel 3, the coarse crushing box 51 is fixedly mounted on the support frame 1 through a second fixing frame 13, a cutting roller 53 is rotatably connected in the coarse crushing box 51, one end of the cutting roller 53 passes through the coarse crushing box 51 and is fixedly connected to a second motor 55, and there are two motors on both sides of the cutting roller 53. The two partitions 52 are both fixedly installed at an angle in the coarse crushing box 51. A plurality of evenly arranged sealing boxes 54 are provided below the cutting roller 53. The sealing boxes 54 are fixedly installed in the coarse crushing box 51. By providing the cutting roller 53, the material entering the coarse crushing box 51 can be effectively preliminarily crushed. The high-speed rotation of the cutting roller 53 helps to improve the crushing efficiency of the material. The two partitions 52 are respectively arranged at an angle on both sides of the cutting roller 53, which helps to guide the material to flow in the correct direction and avoid the accumulation of material near the cutting roller 53 and cause blockage.
[0047] Among them, reference Figure 7As shown, the cutting roller 53 is provided with a plurality of evenly arranged cutting discs 531, and the two partitions 52 are provided with a plurality of evenly arranged cutting grooves 521 on the side facing the cutting roller 53. The positions of the cutting grooves 521 correspond to the positions of the cutting discs 531. The corresponding design of the cutting discs 531 and the cutting grooves 521 enables the cutting discs 531 to accurately cut into the cutting grooves 521 on the partitions 52 during the rotation of the cutting roller 53, thereby efficiently cutting and crushing the material. This design improves the efficiency and consistency of material crushing.
[0048] Further expanding, the cutting disc 531 is provided with a number of evenly arranged cutting blocks 531a, which are slidably connected in the cutting groove 521. Driven by the cutting disc 531, the cutting blocks 531a can contact the material more frequently, increase the chance of material crushing, and thus improve the crushing efficiency.
[0049] Among them, reference Figure 7 and Figure 8 As shown, the cutting roller 53 is provided with a plurality of cutting fans 532, and the cutting fans 532 are provided with a plurality of evenly arranged cutting rods 532a. The two partitions 52 are provided with a plurality of evenly arranged long grooves 522. The position of the cutting rod 532a corresponds to the position of the long groove 522, and the position of the long groove 522 corresponds to the position of the sealing box 54. An arc groove 541 is provided in the sealing box 54, and the cutting rod 532a slides in the arc groove 541, and the cutting rod 532a slides in the long groove 522. The cutting rod 532a on the cutting fan 532 can cooperate with the long groove 522 on the partition 52 when the cutting roller 53 rotates, forming a shearing and crushing effect, so that the material can be efficiently crushed into smaller materials, and then the smaller materials are cut into smaller particles through the cutting of the cutting disc 531.
[0050] refer to Figure 6 As shown, the coarse crushing box 51 is provided with a feeding port 511 at the upper end and a discharge port 512 at the lower end. The discharge port 512 is connected to the upper end of the funnel 3. A cover 511a is provided on the feeding port 511. The design of the cover 511a allows the user to control the feeding of materials, avoid overloading or clogging of the equipment due to excessive feeding of materials at one time, and helps to maintain the smooth operation of the equipment. The cover 511a can also prevent dust generated during the crushing of materials from spreading to the outside.
[0051] The working principle of this utility model is:
[0052] Turn on the first motor 11, the first motor 11 drives the turntable 43 to rotate through the rotating shaft 42, and the turntable 43 drives the crushing block 432 to rotate at high speed;
[0053] Turn on the second motor 55, which drives the cutting roller 53 to rotate. The cutting roller 53 drives the cutting fan 532 and the cutting disk 531 to rotate, so that the cutting rod 532a slides in the long groove 522 and the arc groove 541, and the cutting block 531a slides in the cutting groove 521;
[0054] The material enters the equipment through the feeding port 511 at the upper end of the coarse crushing box 51. The feeding port 511 is provided with a cover 511a for controlling the feeding amount of the material and preventing external impurities from entering. The material entering the coarse crushing box 51 first encounters the rotating cutting roller 53. The cutting roller 53 is provided with a plurality of cutting fans 532, and each cutting fan 532 is evenly arranged with a plurality of cutting rods 532a. The cutting rods 532a cooperate with the long grooves 522 on the partition 52 during rotation to crush larger materials into smaller materials, and then cut the smaller materials through the cutting blocks 531a on the cutting disc 531, and cut the smaller materials into smaller particles. The smaller particles are discharged through the discharge port 512 at the lower end of the coarse crushing box 51 and directly enter the funnel 3, and then enter the feed barrel 222 through the funnel 3. The smaller particles in the feed barrel 222 enter the fine crushing box 2 from the feed port 221, that is, located in the middle of the leakage ring 41, and are crushed by the crushing blocks 432 on the turntable 43. The crushed materials are discharged through the leakage holes 411 on the leakage ring 41, and the materials that do not meet the particle size requirements continue to remain in the fine crushing box 2 for crushing.
[0055] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.
Claims
1. A crushing device, comprising a support frame (1), characterized in that: A first motor (11) and a fine crushing box (2) are fixedly mounted on the support frame (1); a powder outlet (21) is provided at the lower end of the fine crushing box (2); a cover plate (22) is rotatably connected to the fine crushing box (2); a feed port (221) is provided on the cover plate (22); a feed barrel (222) is provided on the cover plate (22) at the feed port (221); a funnel (3) is provided above the feed barrel (222); the funnel (3) is fixedly mounted on the support frame (1) through a first fixed frame (12); a coarse crushing mechanism (5) is provided above the funnel (3); the coarse crushing mechanism (5) is fixedly mounted on the support frame (1) through a second fixed frame (13); a fine crushing mechanism (4) is provided in the fine crushing box (2); an input end of the fine crushing mechanism (4) passes through the fine crushing box (2) and is fixedly connected to the first motor (11).
2. A crushing device according to claim 1, characterized in that: The fine crushing mechanism (4) comprises a leakage ring (41), a rotating shaft (42) and a rotating disk (43); the fine crushing box (2) is connected to a cover plate (22) and is provided with a circular opening (23) on one side; the fine crushing box (2) is provided with a circular opening (23) on one side and a first limiting ring (24) on the opposite side; the leakage ring (41) is arranged in the fine crushing box (2); the outer ring of one end of the leakage ring (41) is in contact with the first limiting ring (24); the outer ring of the other end is in contact with the circular opening (23); a sealing ring (231) is provided on the circular opening (23); the cover plate (22) is sealed with the inner ring of the sealing ring (231); one end of the rotating shaft (42) is fixedly connected to the rotating disk (43); the other end passes through the fine crushing box (2) and is fixedly connected to the output shaft of the first motor (11); the rotating disk (43) is located in the middle of the leakage ring (41).
3. A crushing device according to claim 2, characterized in that: The crushing box (2) is provided with a first limiting ring (24) on one side of which a resisting ring (25) is provided. The sealing ring (231) is provided with a second limiting ring (231a) on the side facing the inside of the crushing box (2). The inner side of one end of the leakage ring (41) is in contact with the outer side of the resisting ring (25), and the inner side of the other end is in contact with the second limiting ring (231a). A plurality of evenly arranged mounting seats (431) are fixedly mounted on the rotating disk (43). A crushing block (432) is fixedly connected to the mounting seat (431). The two ends of the crushing block (432) are respectively in contact with the resisting ring (25) and the sealing ring (231). The bottom of the crushing block (432) is in contact with the leakage ring (41). The leakage ring (41) is provided with a plurality of evenly arranged leakage holes (411).
4. A crushing device according to claim 3, characterized in that: The crushing block (432) is provided with a straight slot (432a), a screw (432b) is provided in the straight slot (432a), and the crushing block (432) is fixedly connected to the mounting seat (431) via the screw (432b).
5. A crushing device according to claim 4, characterized in that: The coarse crushing mechanism (5) comprises a coarse crushing box (51), two partitions (52), a cutting roller (53), a plurality of sealing boxes (54) and a second motor (55); the coarse crushing box (51) is fixedly mounted on the support frame (1) via a second fixing frame (13); the cutting roller (53) is rotatably connected to the coarse crushing box (51); one end of the cutting roller (53) passes through the coarse crushing box (51) and is fixedly connected to the second motor (55); the two partitions (52) are respectively arranged on both sides of the cutting roller (53); the two partitions (52) are both fixedly mounted in the coarse crushing box (51); and the plurality of sealing boxes (54) are evenly arranged below the cutting roller (53).
6. A comminution device according to claim 5, characterized in that: The cutting roller (53) is provided with a plurality of evenly arranged cutting discs (531), and the two partitions (52) are provided with a plurality of evenly arranged cutting grooves (521) on the side facing the cutting roller (53), and the positions of the cutting grooves (521) correspond to the positions of the cutting discs (531).
7. A comminution device according to claim 6, characterized in that: The cutting disc (531) is provided with a plurality of evenly arranged cutting blocks (531a), and the cutting blocks (531a) are slidably connected in the cutting grooves (521).
8. A comminution device according to claim 5, characterized in that: The cutting roller (53) is provided with a plurality of cutting fans (532), and the cutting fans (532) are provided with a plurality of evenly arranged cutting rods (532a). The two partitions (52) are provided with a plurality of evenly arranged long grooves (522). The positions of the cutting rods (532a) correspond to the positions of the long grooves (522), and the positions of the long grooves (522) correspond to the positions of the sealing box (54). An arc groove (541) is provided in the sealing box (54), and the cutting rods (532a) slide in the arc groove (541), and the cutting rods (532a) slide in the long grooves (522).
9. A comminution device according to claim 5, characterized in that: The coarse crushing box (51) is provided with a feeding port (511) at the upper end and a discharge port (512) at the lower end. The discharge port (512) is connected to the upper end of the funnel (3). The feeding port (511) is provided with a sealing cover (511a).