Two-stage crushing mechanism for crusher

Abstract

The two-stage crushing mechanism comprises a crushing box and a lifting seat, the lifting seat is arranged in the crushing box, and a crushing groove is formed in the top surface of the lifting seat. The double-stage crushing device has the beneficial effects that the crushing head and the lifting seat are adopted, when materials are subjected to double-stage crushing, the materials can be fed into the crushing box from the feeding hole, the first driving motor and the second driving motor are started, the first driving motor drives the crushing head to rotate, and the second driving motor drives the crankshaft to rotate; the crankshaft rotates to drive the connecting rod to move up and down and swing, meanwhile, the bottom rod is driven to move up and down, the bottom rod pulls the lifting base to ascend and descend, when the lifting base descends, materials enter the position between the crushing groove and the crushing head, and when the lifting base ascends, the materials are extruded and crushed by the crushing head and the lifting base, and meanwhile, the materials are rotationally rubbed and crushed by the crushing head. And compared with a traditional two-stage crushing structure, the device is simpler in structure, crushing and crushing are synchronously completed, and the working efficiency is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of crushers, in particular to a double-stage crushing mechanism for a crusher. Background Art

[0002] In the preparation process of medicinal materials, it is essential to crush large pieces of medicine into smaller particles to facilitate the subsequent processing and treatment of the medicine. The traditional crushing method is through manual crushing, but the crushing speed is too slow and it is impossible to crush in large quantities. In order to meet the needs of large-scale production, machines for crushing medicines have appeared on the market, which can quickly crush medicinal materials into particles of suitable sizes. In order to make the particles of medicinal materials reach the required size, the medicinal materials need to be crushed for a long time. At the same time, there are two existing crushing methods: jaw crushing and blade crushing. The former crushes the medicinal materials by squeezing, and the latter directly cuts the medicinal materials.

[0003] After searching, it was found that the publication number is CN218945238U, and the name is a high-efficiency two-stage pulverizer. The application proposes that when the medicinal materials are lumped or the sizes of the medicinal materials are uneven, the crushing mechanism cannot be crushed quickly, which will cause the fine parts of the crushing mechanism to be damaged and reduce the service life. At the same time, in the process of repeated crushing, the particles of some medicinal materials will be too fine, resulting in the problem of uneven size of the crushed particles. By setting the coarse crushing component and the fine crushing component, the medicinal materials can be crushed in turn. The crushing gears on the two first rotating shafts are staggered, so that the medicinal materials that are not easy to crush can be intercepted and separated from the easy-to-crush parts, avoiding repeated crushing of the easy-to-crush medicinal residues resulting in their particles being too small. At the same time, the fine crushing component The size of the medicinal materials to be crushed is relatively uniform, which extends the service life of the fine crushing component. However, this application adopts a double-roll crushing structure and a hammer crushing structure, and simply combines them in the up and down directions. Although it has the advantages of both, it also has the disadvantages of both. The structure is very complicated. The medicinal materials are first crushed once by the double-roll crushing structure, and then crushed for the second time by the hammer crushing structure. The two-stage crushing is not synchronized, and the working efficiency is not high. The hammer crushing structure is suitable for materials such as ores, and it is difficult to crush medicinal materials efficiently. The particle size of medicinal materials is difficult to guarantee, and further improvements can be made. At the same time, the fixed setting of the rolling net is prone to blockage, causing discharging problems and causing excessive crushing of medicinal materials, which can also be further improved.

[0004] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a double-stage crushing mechanism for a pulverizer, which has the advantages of simple structure and high working efficiency, thereby solving the problems in the above-mentioned background technology.

[0007] (II) Technical solution

[0008] In order to achieve the above advantages of simple structure and high working efficiency, the specific technical solutions adopted by the utility model are as follows:

[0009] A double-stage crushing mechanism for a crusher comprises a crushing box and a lifting seat, wherein the crushing box is provided with a lifting seat inside, and a crushing groove is provided on the top surface of the lifting seat, and a crushing head is provided above the crushing groove, a first driving motor is fixedly installed on the top surface of the crushing box, and an output end of the first driving motor is fixedly connected to the top surface of the crushing head, a sieve hole is provided through the surface of the lifting seat located on the bottom surface of the crushing groove, and a bottom rod and a guide rod are vertically fixedly installed on the bottom surface of the lifting seat, and the bottom rod and the guide rod both penetrate the bottom surface of the crushing box and are slidably connected to the bottom surface of the crushing box, a supporting frame is fixedly installed on the bottom surface of the crushing box, and a second driving motor is fixedly installed on the surface of one side of the supporting frame, and a crankshaft is installed on the output end of the second driving motor, a rotating ring is rotatably sleeved on the surface of the crankshaft, and a connecting rod is fixedly connected to the surface of the rotating ring, and the other end of the connecting rod is rotatably connected to the bottom of the bottom rod through a rotating pin.

[0010] Furthermore, a feed port is connected through the top surface of the crushing box, and a discharge port is connected through the bottom surface of the crushing box.

[0011] Furthermore, there are a plurality of sieve holes densely and evenly distributed, and the sieve hole diameter is adapted to the target particle size of the material.

[0012] Furthermore, a spring is sleeved on the outside of the bottom rod and the guide rod between the lifting seat and the inner wall of the crushing box, and two ends of the spring are respectively fixedly connected to the bottom surface of the lifting seat and the inner wall of the crushing box.

[0013] Furthermore, the bottom surface of the crushing head is integrally connected with protrusions, and the protrusions are densely and evenly distributed, and the size of the protrusions is larger than the size of the sieve holes.

[0014] Furthermore, the crushing head, the first drive motor and the lifting seat are coaxially arranged, and the outer edge of the lifting seat is in sliding contact with the inner wall of the crushing box.

[0015] Furthermore, the top of the crushing head is a truncated cone structure, and the crushing head is formed by abrasive consolidation.

[0016] Furthermore, a plurality of guide rods are arranged, and the guide rods are smooth round rods.

[0017] (III) Beneficial effects

[0018] Compared with the prior art, the utility model provides a two-stage crushing mechanism for a pulverizer, which has the following beneficial effects:

[0019] (1) The utility model adopts a crushing head and a lifting seat. When the material is crushed in two stages, the material can be put into the crushing box from the feed port, the first drive motor and the second drive motor are started, the first drive motor drives the crushing head to rotate, the second drive motor drives the crankshaft to rotate, the crankshaft rotation drives the connecting rod to move up and down and swing, and at the same time, drives the bottom rod to move up and down, the bottom rod pulls the lifting seat to move up and down, when the lifting seat descends, the material enters between the crushing trough and the crushing head, when the lifting seat rises, the material is squeezed and crushed by the crushing head and the lifting seat, and at the same time, it is crushed by the rotation and friction of the crushing head, and the two-stage operation of crushing and pulverizing is completed synchronously. Compared with the traditional two-stage crushing structure, the structure of the device is simpler, crushing and pulverizing are completed synchronously, and the working efficiency is higher.

[0020] (2) The utility model adopts a lifting seat and sieve holes. The sieve holes facilitate the discharge of materials that meet the particle size and facilitate the screening of materials. At the same time, as the lifting seat is continuously raised and lowered, vibration is generated inside the lifting seat. The vibration facilitates the continuous discharge of materials, reduces the blockage phenomenon, improves the smoothness of material discharge, facilitates continuous feeding and discharging of materials, and is very convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of the internal structure of the double-stage crushing mechanism for the pulverizer proposed by the utility model;

[0023] Figure 2 It is a schematic diagram of the external structure of the double-stage crushing mechanism for the pulverizer proposed by the utility model;

[0024] Figure 3 It is a structural schematic diagram of the lifting seat proposed by the utility model;

[0025] Figure 4 It is a structural schematic diagram of the crushing head proposed by the utility model.

[0026] In the figure:

[0027] 1. Crushing box; 2. Crushing head; 3. Lifting seat; 4. Crushing groove; 5. Sieve hole; 6. Bump; 7. First drive motor; 8. Feed inlet; 9. Bottom rod; 10. Spring; 11. Guide rod; 12. Discharge outlet; 13. Support frame; 14. Second drive motor; 15. Connecting rod; 16. Rotating pin; 17. Crankshaft; 18. Rotating ring. DETAILED DESCRIPTION

[0028] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0029] According to an embodiment of the utility model, a double-stage crushing mechanism for a pulverizer is provided.

[0030] The present invention is now further described in conjunction with the accompanying drawings and specific implementation methods. Figure 1-4As shown, the double-stage crushing mechanism for a pulverizer according to the embodiment of the utility model comprises a crushing box 1 and a lifting seat 3, the lifting seat 3 is arranged inside the crushing box 1, and a crushing groove 4 is opened on the top surface of the lifting seat 3, and a crushing head 2 is arranged above the crushing groove 4, a first driving motor 7 is fixedly installed on the top surface of the crushing box 1, and the output end of the first driving motor 7 is fixedly connected to the top surface of the crushing head 2, a sieve hole 5 is opened through the surface of the lifting seat 3 located at the bottom surface of the crushing groove 4, and a bottom rod 9 and a guide rod 11 are vertically fixedly installed on the bottom surface of the lifting seat 3. , and the bottom rod 9 and the guide rod 11 both penetrate the bottom surface of the crushing box 1 and are slidably connected to the bottom surface of the crushing box 1, a support frame 13 is fixedly installed on the bottom surface of the crushing box 1, and a second drive motor 14 is fixedly installed on one side surface of the support frame 13, and a crankshaft 17 is installed on the output end of the second drive motor 14, a rotating ring 18 is rotatably sleeved on the surface of the crankshaft 17, and a connecting rod 15 is fixedly connected to the surface of the rotating ring 18, and the other end of the connecting rod 15 is rotatably connected to the bottom of the bottom rod 9 through a rotating pin 16. It is a common driving structure. When the material is crushed, When performing double-stage crushing, the material can be put into the crushing box 1 from the feed port 8, the first drive motor 7 and the second drive motor 14 are started, the first drive motor 7 drives the crushing head 2 to rotate, the second drive motor 14 drives the crankshaft 17 to rotate, the crankshaft 17 rotates and drives the connecting rod 15 to move up and down and swing, and at the same time, drives the bottom rod 9 to move up and down, the bottom rod 9 pulls the lifting seat 3 to rise and fall, when the lifting seat 3 descends, the material enters between the crushing trough 4 and the crushing head 2, when the lifting seat 3 rises, the material is squeezed and crushed by the crushing head 2 and the lifting seat 3, and at the same time, it is crushed by the rotation and friction of the crushing head 2, and the double-stage operation of crushing and crushing is completed synchronously. Compared with the traditional double-stage crushing structure, the structure of the device is simpler, the crushing and crushing are completed synchronously, and the working efficiency is higher. At the same time, the sieve hole 5 is convenient for discharging materials that meet the particle size and is convenient for screening materials. At the same time, with the continuous lifting and lowering of the lifting seat 3, vibration is formed inside the lifting seat 3, and the vibration is convenient for continuous discharge of materials, reduces the blockage phenomenon, improves the smoothness of material discharge, is convenient for continuous feeding and discharging, and is also very convenient to use.

[0031] In one embodiment, a feed port 8 is connected through the top surface of the crushing box 1, and a discharge port 12 is connected through the bottom surface of the crushing box 1, so as to facilitate feeding and discharging of materials.

[0032] In one embodiment, a plurality of sieve holes 5 are densely and evenly distributed, and the aperture of the sieve holes 5 is adapted to the target particle size of the material, so as to facilitate screening.

[0033] In one embodiment, a spring 10 is sleeved between the lifting seat 3 and the inner wall of the crushing box 1 outside the bottom rod 9 and the guide rod 11, and the two ends of the spring 10 are respectively fixedly connected to the bottom surface of the lifting seat 3 and the inner wall of the crushing box 1, and the spring 10 plays a supporting role.

[0034] In one embodiment, the bottom surface of the crushing head 2 is integrally connected with protrusions 6, and the protrusions 6 are densely and evenly distributed, and the size of the protrusions 6 is larger than the size of the sieve holes 5. The protrusions 6 increase the roughness, thereby improving the working efficiency of friction crushing.

[0035] In one embodiment, the crushing head 2, the first drive motor 7, and the lifting seat 3 are coaxially arranged, and the outer edge of the lifting seat 3 is in sliding contact with the inner wall of the crushing box 1 to prevent the material from leaking without being crushed.

[0036] In one embodiment, the top of the crushing head 2 is a truncated cone structure, and the crushing head 2 is formed by abrasive consolidation. The top structure of the crushing head 2 facilitates the material to enter the crushing tank 4.

[0037] In one embodiment, a plurality of guide rods 11 are arranged, and the guide rods 11 are smooth round rods, and the guide rods 11 serve as lifting guides for the lifting seat 3 .

[0038] Working principle:

[0039] When the material is subjected to double-stage crushing, the material can be put into the crushing box 1 from the feed port 8, the first drive motor 7 and the second drive motor 14 are started, the first drive motor 7 drives the crushing head 2 to rotate, the second drive motor 14 drives the crankshaft 17 to rotate, the crankshaft 17 rotates and drives the connecting rod 15 to move up and down and swing, and at the same time, drives the bottom rod 9 to move up and down, the bottom rod 9 pulls the lifting seat 3 to rise and fall, when the lifting seat 3 descends, the material enters between the crushing trough 4 and the crushing head 2, when the lifting seat 3 rises, the material is squeezed and crushed by the crushing head 2 and the lifting seat 3, and at the same time, is crushed by the rotation and friction of the crushing head 2, and the double-stage operation of crushing and crushing is completed synchronously. Compared with the traditional double-stage crushing structure, the structure of the device is simpler, the crushing and crushing are completed synchronously, and the working efficiency is higher. At the same time, the sieve hole 5 is convenient for the discharge of materials that meet the particle size, and it is convenient for screening materials. At the same time, with the continuous lifting and lowering of the lifting seat 3, vibration is formed inside the lifting seat 3, and the vibration is convenient for the continuous discharge of materials, reduces the blockage phenomenon, improves the smoothness of the discharge, is convenient for continuous feeding and discharging, and is also very convenient to use.

[0040] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A two-stage crushing mechanism for a pulverizer, characterized in that: The invention comprises a crushing box (1) and a lifting seat (3), wherein the crushing box (1) is provided with a lifting seat (3), and a crushing groove (4) is provided on the top surface of the lifting seat (3), and a crushing head (2) is provided above the crushing groove (4), a first driving motor (7) is fixedly installed on the top surface of the crushing box (1), and the output end of the first driving motor (7) is fixedly connected to the top surface of the crushing head (2), a sieve hole (5) is provided on the surface of the lifting seat (3) located on the bottom surface of the crushing groove (4), and a bottom rod (9) and a guide rod (11) are vertically fixedly installed on the bottom surface of the lifting seat (3), and the bottom The rod (9) and the guide rod (11) both penetrate the bottom surface of the crushing box (1) and are slidably connected to the bottom surface of the crushing box (1); a support frame (13) is fixedly installed on the bottom surface of the crushing box (1), and a second drive motor (14) is fixedly installed on one side surface of the support frame (13); a crankshaft (17) is installed on the output end of the second drive motor (14); a rotating ring (18) is rotatably sleeved on the surface of the crankshaft (17), and a connecting rod (15) is fixedly connected to the surface of the rotating ring (18), and the other end of the connecting rod (15) is rotatably connected to the bottom of the bottom rod (9) through a rotating pin (16).

2. The double-stage crushing mechanism for a pulverizer according to claim 1, characterized in that: The top surface of the crushing box (1) is connected through a feed port (8), and the bottom surface of the crushing box (1) is connected through a discharge port (12).

3. The double-stage crushing mechanism for a pulverizer according to claim 1, characterized in that: The sieve holes (5) are densely and evenly distributed in a plurality, and the aperture of the sieve holes (5) is adapted to the target particle size of the material.

4. The double-stage crushing mechanism for a pulverizer according to claim 1, characterized in that: A spring (10) is sleeved on the outside of the bottom rod (9) and the guide rod (11) between the lifting seat (3) and the inner wall of the crushing box (1), and the two ends of the spring (10) are respectively fixedly connected to the bottom surface of the lifting seat (3) and the inner wall of the crushing box (1).

5. The double-stage crushing mechanism for a pulverizer according to claim 1, characterized in that: The bottom surface of the crushing head (2) is integrally connected with convex points (6), and the convex points (6) are densely and evenly distributed, and the size of the convex points (6) is larger than the size of the sieve holes (5).

6. The double-stage crushing mechanism for a pulverizer according to claim 1, characterized in that: The crushing head (2), the first drive motor (7) and the lifting seat (3) are coaxially arranged, and the outer edge of the lifting seat (3) is in sliding contact with the inner wall of the crushing box (1).

7. The double-stage crushing mechanism for a pulverizer according to claim 1, characterized in that: The top of the crushing head (2) is a truncated cone structure, and the crushing head (2) is formed by abrasive consolidation.

8. The double-stage crushing mechanism for a pulverizer according to claim 1, characterized in that: A plurality of guide rods (11) are arranged, and the guide rods (11) are smooth round rods.

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