Permanent magnet variable frequency direct drive type stepwise crusher

Abstract

The application relates to the technical field of crushers, and discloses a permanent magnet variable-frequency direct-drive type grading crusher which comprises a shell; a plurality of crushing rollers are rotationally arranged in the shell, crushing spaces are formed between the adjacent crushing rollers, and the crushing spaces are used for extruding and crushing materials; a first driving element is arranged on the shell and used for driving the crushing rollers to rotate. Through the above technical scheme, the problem that the slippage phenomenon of materials during crushing cannot be treated and the crushing progress is affected in the prior art is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of crushers, in particular to a permanent magnet variable frequency direct drive type grading crusher. SUMMARY

[0002] The present application provides a permanent magnet variable frequency direct drive type grading crusher, which solves the problem that the sliding phenomenon of materials during crushing cannot be handled in the related art, affecting the crushing progress.

[0003] The technical scheme of the present application is as follows:

[0004] The permanent magnet variable frequency direct drive type grading crusher comprises:

[0005] A shell;

[0006] A plurality of crushing rollers are rotationally arranged in the shell, and a crushing space is formed between adjacent crushing rollers, which is used for extruding and crushing materials;

[0007] A first driving member is arranged on the shell, and is used for driving the crushing rollers to rotate;

[0008] A sliding frame is slidingly arranged on the shell, and the crushing rollers are located below the sliding frame, and the sliding frame is used for pushing the materials to be uniformly arranged in the crushing space.

[0009] As a further technical scheme, the shell has a chamfer, and the sliding frame has a matching inclined surface, and the matching inclined surface has the same inclination angle as the chamfer.

[0010] As a further technical scheme, the crushing roller comprises:

[0011] A main shaft is rotationally arranged on the shell;

[0012] A plurality of blades are arrayed and spaced apart on the main shaft;

[0013] A plurality of spacers are arrayed and spaced apart on the main shaft, and the blades and the main shaft are sequentially arranged.

[0014] As a further technical scheme, two adjacent crushing rollers are staggered.

[0015] As a further technical scheme, a plurality of dust removal holes are arranged at a circumferential interval on the spacer, and the main shaft has a through hole, and a plurality of dust removal holes and the through hole are in communication.

[0016] As a further technical scheme, it further comprises:

[0017] A plurality of anti-blocking caps are arranged on the spacer sleeve, the anti-blocking caps are located above the dust removal holes, and the anti-blocking caps are used to prevent particles from entering and blocking the dust removal holes.

[0018] As a further technical solution, the anti-blocking cap is a conical surface away from one end of the spacer sleeve, and the conical surface is used to assist in crushing.

[0019] As a further technical solution, the sliding frame has a plurality of screw holes, and further comprises:

[0020] A plurality of screw rods are rotatably arranged on the shell, the screw rods are threadedly matched with the screw holes, and the screw rods are used to drive the sliding frame to slide;

[0021] A plurality of second driving members are arranged on the shell, and the second driving members are used to drive the screw rods to rotate.

[0022] As a further technical solution, the shell has a protection cavity, the screw rods are located in the protection cavity, and the protection cavity is used to prevent materials from falling onto the screw rods.

[0023] The beneficial effects of the present application are:

[0024] In the present application, the first driving member is a permanent magnet variable frequency motor, a shaft coupling and a synchronous gear box, the shell is fixed on the horizontal ground, the permanent magnet variable frequency motor, the synchronous gear box and the crushing box body are arranged on the shell, the output shaft of the permanent magnet variable frequency motor is connected with one of the crushing rollers through the shaft coupling, and the remaining crushing rollers are driven by the synchronous gear box to ensure that the rotating speeds of the plurality of crushing rollers are the same, thereby effectively avoiding the slippage of the materials. The permanent magnet variable frequency direct drive method is adopted, the components such as the fluid coupling and the speed reducer are omitted, the transmission system is simplified, the transmission efficiency is improved, and the energy loss is reduced. The permanent magnet variable frequency technology enables the rotating speed and the torque of the crusher to be more flexibly adjusted, adapts to different material crushing requirements, improves the versatility and working efficiency of the equipment. The single first driving member drives the crushing roller, solves the problem of poor synchronization of the toothed rollers when driven by double motors, reduces the slippage phenomenon when the crushing teeth engage the materials, especially improves the engagement capacity of the large block materials, and enhances the crushing effect. BRIEF DESCRIPTION OF DRAWINGS

[0025] The above-mentioned characteristics, technical features, advantages and implementation modes of the present application will be further described in a clear and easy-to-understand manner in combination with the preferred embodiments and the accompanying drawings.

[0026] Figure 1 The structure of the present application is shown in the figure;

[0027] Figure 2 The structure of the crushing roller in the present application is shown in the figure;

[0028] Figure 3 For the invention Figure 2 A local enlarged view of A in the invention;

[0029] Figure 4 For the structure of the sliding frame in the invention.

[0030] In the figure: 1, the shell, 2, the crushing roller, 3, the crushing space, 4, the first driving part, 5, the sliding frame, 6, the chamfer, 7, the matching slope, 8, the main shaft, 9, the blade, 10, the spacer sleeve, 11, the dust removal hole, 12, the through hole, 13, the anti-blocking cap, 14, the conical surface, 15, the screw hole, 16, the screw rod, 17, the second driving part, 18, the protection cavity. DETAILED DESCRIPTION

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, specific embodiments of the present application will be described below with reference to the drawings. Obviously, the drawings in the following description only represent some embodiments of the present application, and for those skilled in the art, without creative labor, further technical solutions can also be understood, and in some drawings, only one of the components with the same structure or function is shown. In this paper, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0032] In this paper, it should be noted that unless otherwise specified and limited, the terms "mounting", "connection" and "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0033] In addition, in the description of the present application, the terms "first", "second" and the like are only used for differentiation and description, and cannot be understood as indicating or implying relative importance.

[0034] Reference Figures 1-4 , a permanent magnet variable frequency direct drive type grading crusher is proposed, comprising: a shell 1; a plurality of crushing rollers 2 are rotatably arranged in the shell 1, and a crushing space 3 is formed between adjacent crushing rollers 2, which is used for extruding and crushing materials; a first driving part 4 is arranged on the shell 1, which is used to drive the crushing roller 2 to rotate; a sliding frame 5 is slidably arranged on the shell 1, the crushing roller 2 is located below the sliding frame 5, and the sliding frame 5 is used to push the material to be uniformly arranged in the crushing space 3.

[0035] In this embodiment, the first driving member 4 is a permanent magnet variable frequency motor, a shaft coupling and a synchronous gear box, the casing 1 is fixed on the horizontal ground, the permanent magnet variable frequency motor, the synchronous gear box and the crushing box body are arranged on the casing 1, the output shaft of the permanent magnet variable frequency motor is connected with one of the crushing rollers 2 through the shaft coupling, and the remaining crushing rollers 2 are driven by the synchronous gear box torque, so that the rotation speeds of the plurality of crushing rollers 2 are the same, thereby effectively avoiding the sliding of the material. The permanent magnet variable frequency direct drive method is adopted, and the hydraulic coupler and the speed reducer and other components are omitted, so that the transmission system is simplified, the transmission efficiency is improved, and the energy loss is reduced. The permanent magnet variable frequency technology can flexibly adjust the rotation speed and torque of the crusher, adapt to different material crushing requirements, and improve the versatility and working efficiency of the equipment. The single first driving member 4 drives the crushing roller 2, solves the problem of poor synchronization of the toothed roller when driven by double motors, reduces the sliding phenomenon when the crushing teeth engage the material, especially improves the engagement ability of large materials, and enhances the crushing effect.

[0036] The sliding arrangement of the sliding frame 5 can actively push the material to be uniformly arranged in the crushing space 3, so that the material can be more fully subjected to the extrusion and crushing action of the crushing roller 2, and the uniformity and quality of crushing are improved. If there is an individual larger and smoother material that cannot be well engaged and crushed by the crushing roller 2, the position of the material is limited through the sliding of the sliding frame 5, and then the crushing is realized in cooperation with the crushing roller 2. The sliding frame 5 can also avoid the accumulation and blockage of the material in the crushing space 3, ensure the continuity and stability of the crushing process, and improve the production efficiency. The crushing roller 2 can more effectively utilize its crushing capacity, reduce local overwear, and prolong the service life of the crushing roller 2. It can adapt to different feeding amounts and feeding distribution conditions, automatically adjust the distribution of the material, and enhance the adaptability of the crusher to different working conditions. Uniformly arranged material can reduce the crushing energy consumption, improve the energy utilization efficiency, and reduce the production cost.

[0037] As a further technical solution, the casing 1 has a chamfer 6, and the sliding frame 5 has a matching slope 7 with the same inclination angle as the chamfer 6.

[0038] In this embodiment, the matching slope 7 with the same inclination angle as the chamfer 6 can achieve good guiding effect, ensure the sliding action of the sliding frame 5 on the casing 1 to be accurate and correct, avoid deviation, and also reduce friction loss in the sliding process, reduce energy consumption, and improve the operating economy of the equipment. When the crusher vibrates during operation, the structure with the same inclination angle can effectively reduce the influence of vibration on the cooperation between the sliding frame 5 and the casing 1, and enhance the stability and reliability of the equipment. It is conducive to improving the assembly precision between the sliding frame 5 and the casing 1, thereby improving the manufacturing quality and performance of the entire crusher. It is convenient to check and clean the contact surface of the sliding frame 5 and the casing 1 during equipment maintenance, reduces the maintenance difficulty, and shortens the maintenance time.

[0039] As a further technical solution, the crushing roller 2 comprises: a main shaft 8 rotationally arranged on the shell 1; a plurality of blades 9 arrayed and spaced on the main shaft 8; a plurality of spacers 10 arrayed and spaced on the main shaft 8, and the blades 9 and the main shaft 8 are sequentially arranged.

[0040] In this embodiment, the main shaft 8 is rotationally arranged on the shell 1, providing stable support and rotational power for the blades 9, ensuring smooth crushing work. The plurality of arrayed and spaced blades 9 can increase the contact area with the material, improving the crushing efficiency and effect. The arrangement of the spacers 10 can adjust the distance between the blades 9, adapt to the crushing needs of different sizes of materials, and make the crushing more fine and uniform. The structure of the blades 9 and the spacers 10 arranged in sequence helps to balance the stress of the main shaft 8 when rotating, reduces vibration and noise, and prolongs the service life of the main shaft 8. This structure facilitates the individual replacement and maintenance of the blades 9 and the spacers 10, reducing maintenance costs and time.

[0041] As a further technical solution, two adjacent crushing rollers 2 are staggered.

[0042] In this embodiment, two adjacent crushing rollers 2 are staggered, which can increase the crushing times and paths of the material in the crushing space 3, thereby improving the completeness and fineness of crushing. This staggered layout can make the material receive more comprehensive extrusion and shearing effect, further improving the crushing effect and ensuring more uniform crushing of the material. It helps to reduce the situation that the material is directly discharged without being fully crushed, improving the working quality of the crusher and the product qualification rate. It can better adapt to different shapes and sizes of materials, improving the versatility and processing capacity of the crusher. The staggered crushing rollers 2 can complement and cooperate with each other when working, reducing the load of a single crushing roller 2 and prolonging the service life of the crushing roller 2.

[0043] As a further technical solution, the spacers 10 are circumferentially spaced apart and have a plurality of dust removal holes 11, the main shaft 8 has a through hole 12, and a plurality of dust removal holes 11 are in communication with the through hole 12.

[0044] In this embodiment, the dust removal holes 11 on the spacer sleeve 10 are arranged at equal intervals in the circumference and are communicated with the through holes 12 on the main shaft 8, forming effective dust removal channels. Dust and fine particles can be timely discharged during the crushing process, reducing the accumulation of dust in the crushing cavity and improving the working environment. This helps to reduce the friction between the material and the crushing components, reduces energy loss, and improves crushing efficiency. Timely discharge of dust can avoid the wear and erosion of the crushing components by dust, prolonging the service life of the crusher. Good dust removal effect can ensure the quality of the crushed material and reduce impurity content. This structure is simple and practical, does not increase too many complex components, and is easy to manufacture and maintain.

[0045] As a further technical solution, the anti-blocking cap 13 is provided with a plurality of anti-blocking caps 13 arranged on the spacer sleeve 10, the anti-blocking cap 13 is located above the dust removal hole 11, and the anti-blocking cap 13 is used to prevent particles from entering and blocking the dust removal hole 11.

[0046] In this embodiment, the anti-blocking cap 13 is arranged above the dust removal hole 11, which can effectively block larger particles from entering the dust removal hole 11 and prevent them from blocking, ensuring the smoothness of the dust removal channel and maintaining good dust removal effect. Reducing equipment failure and downtime maintenance caused by the blockage of the dust removal hole 11 improves the operational stability and reliability of the equipment and ensures the continuity of production. Avoiding the internal pressure rise caused by blockage reduces the risk of damage to the equipment and prolongs the service life of the crusher. It helps to maintain the air pressure balance in the crushing cavity, making the crushing work more stable and efficient. The anti-blocking cap 13 has a simple structure, low cost, and is easy to install and maintain, which will not significantly increase the complexity and maintenance cost of the equipment.

[0047] As a further technical solution, the anti-blocking cap 13 is provided with a plurality of anti-blocking caps 13 arranged on the spacer sleeve 10, the anti-blocking cap 13 is located above the dust removal hole 11, and the anti-blocking cap 13 is used to prevent particles from entering and blocking the dust removal hole 11.

[0048] In this embodiment, the anti-blocking cap 13 is arranged above the dust removal hole 11, which can effectively block larger particles from entering the dust removal hole 11 and prevent them from blocking, ensuring the smoothness of the dust removal channel and maintaining good dust removal effect. Reducing equipment failure and downtime maintenance caused by the blockage of the dust removal hole 11 improves the operational stability and reliability of the equipment and ensures the continuity of production. Avoiding the internal pressure rise caused by blockage reduces the risk of damage to the equipment and prolongs the service life of the crusher. It helps to maintain the air pressure balance in the crushing cavity, making the crushing work more stable and efficient. The anti-blocking cap 13 has a simple structure, low cost, and is easy to install and maintain, which will not significantly increase the complexity and maintenance cost of the equipment.

[0049] As a further technical solution, the sliding frame 5 has a plurality of screw holes 15, and further comprises: a plurality of screw rods 16 are rotationally arranged on the shell 1, the screw rods 16 are in threaded cooperation with the screw holes 15, and the screw rods 16 are used to drive the sliding frame 5 to slide.

[0050] A second driving member 17 is arranged on the shell 1, and the second driving member 17 is used to drive the screw rods 16 to rotate.

[0051] In the embodiment, the screw holes 15 on the sliding frame 5 are in threaded cooperation with the screw rods 16, and the transmission mode has high precision and can accurately control the sliding distance and speed of the sliding frame 5, thereby ensuring the uniform arrangement effect of the materials in the crushing space 3. The arrangement of the plurality of screw rods 16 and the second driving member 17 makes the force on the sliding frame 5 more uniform, and the sliding process more stable, thereby reducing the possibility of jamming and tilting. The rotation of the screw rods 16 drives the sliding frame 5 to slide, and the transmission efficiency is high, so that the power of the second driving member 17 can be effectively transmitted to the sliding frame 5, thereby reducing energy loss.

[0052] As a further technical solution, the shell 1 has a protection cavity 18, and the screw rods 16 are located in the protection cavity 18, and the protection cavity 18 is used to prevent the materials from falling onto the screw rods 16.

[0053] In the embodiment, the screw rods 16 are located in the protection cavity 18, so that the materials cannot directly fall onto the screw rods 16 to damage the threads, thereby affecting the sliding of the sliding frame 5. The service life of the equipment is improved.

[0054] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application but not limit the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the present application, and all modifications and replacements should be included in the scope of the claims of the present application.

Claims

1. A permanent magnet variable frequency direct drive type stage crusher, characterized by, Include: The shell (1); Crushing roller (2), with several, rotationally arranged in the shell (1), adjacent to the crushing roller (2) between the crushing space (3) is used to crush and crush the material; The first drive (4) is arranged on the shell (1), the first drive (4) is used to drive the crushing roller (2) rotation; The sliding frame (5) is slidingly arranged on the shell (1), the crushing roller (2) is located below the sliding frame (5), the sliding frame (5) is used to push the material in the crushing space (3) uniform distribution; The shell (1) has a chamfer (6), the sliding frame (5) has a matching slope (7), the matching slope (7) and the chamfer (6) have the same inclination angle; The crushing roller (2) includes: The main shaft (8) is rotationally arranged on the shell (1); Blade (9), with several, arrayed and spaced apart on the main shaft (8); The spacer sleeve (10) is arranged on the main shaft (8), the blade (9) and the spacer sleeve (10) are arranged in sequence; The spacer sleeve (10) is circumferentially spaced apart from several dust holes (11), the main shaft (8) has a through hole (12), several dust holes (11) and the through hole (12) are communicated; Also includes: Anti-blocking cap (13), with several, arranged on the spacer sleeve (10), the anti-blocking cap (13) is located above the dust hole (11), the anti-blocking cap (13) is used to prevent particles from entering and blocking the dust hole (11); The end of the anti-blocking cap (13) away from the spacer sleeve (10) is a conical surface (14), the conical surface (14) is used to assist in crushing.

2. The permanent-magnet variable-frequency direct-drive step-reducing crusher according to claim 1, characterized in that, Two adjacent crushing rollers (2) are staggered.

3. The permanent-magnet variable-frequency direct-drive cascading crusher according to claim 1, characterized in that, The sliding frame (5) has several screw holes (15), further comprising: Screw rod (16), with several, rotationally arranged on the shell (1), the screw rod (16) and the screw hole (15) are threadedly connected, the screw rod (16) is used to drive the sliding frame (5) to slide; The second drive (17) is arranged on the shell (1), the second drive (17) is used to drive the screw rod (16) to rotate.

4. The permanent-magnet variable-frequency direct-drive cascading crusher according to claim 3, characterized in that, The shell (1) has a protection cavity (18), the screw rod (16) is located in the protection cavity (18), the protection cavity (18) is used to prevent the material from falling on the screw rod (16).

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