A multi-stage rotary crusher

Abstract

This utility model relates to the field of crushing and pulverizing technology, and particularly to a multi-stage rotary crushing and pulverizing machine. It includes a support frame, a processing shell fixedly mounted on the upper end of the support frame, a discharge shell fixedly mounted on the lower end face of the processing shell, and two sets of crushing rollers symmetrically mounted within the processing shell. A first drive motor is fixedly mounted on one end of the processing shell, and a linkage assembly connecting the two sets of crushing rollers is provided at the other end of the processing shell. A pulverizing shell is detachably mounted on the lower end face of the discharge shell. This application, by setting a multi-stage pulverizing structure, including two sets of crushing rollers, two sets of main pulverizing rollers, and several auxiliary pulverizing rollers, enables multiple crushing and pulverizing processes on materials, greatly improving the pulverizing effect. The material is subjected to different forces at different pulverizing stages, such as compression, shearing, and rotary cutting, ensuring that the material is fully pulverized and meeting the needs of different industrial production and resource recycling.

Description

Technical Field

[0001] This utility model relates to the field of crushing and pulverizing technology, and in particular to a multi-stage rotary shearing crusher. Background Technology

[0002] In industrial production and resource recycling, material crushing equipment is an indispensable basic tool. Traditional crushing equipment mostly adopts a single-stage crushing structure, such as the common jaw crusher, which mainly relies on the squeezing action of a pair of jaw plates to crush materials, achieving only primary coarse crushing. Although hammer mills can crush materials through high-speed rotating hammers, they lack subsequent fine processing stages, making them unsuitable for applications with high particle size requirements. These devices have low crushing efficiency, and the crushed materials have uneven particle sizes, failing to meet the needs of industries such as chemical, building materials, and new energy for fine material processing.

[0003] Although some multi-stage crushing equipment has multiple crushing stages, the coordination between the components of each stage is poor. Taking some early two-stage crushers as an example, the front and rear crushing rollers operate independently, lacking an effective linkage mechanism, which makes it easy for material to become blocked or jammed during the transfer process, affecting the continuous operation of the equipment.

[0004] Moreover, the crushing rollers of these devices have a simple structure, and the material is only subjected to a single squeezing or impact. This makes it impossible to fully crush materials with strong toughness or high hardness, such as alloy materials in scrap metal recycling and quartz in ore processing. As a result, the crushing effect is poor, and a large amount of material needs to be crushed again, which increases energy consumption and processing costs. Utility Model Content

[0005] This invention solves the problems in related technologies and proposes a multi-stage rotary shearing crusher.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] A multi-stage rotary crusher includes a support frame. A processing shell is fixedly installed on the upper end of the support frame, and a discharge shell is fixedly installed on the lower end face of the processing shell. Two sets of crushing rollers are symmetrically installed in the processing shell. A first drive motor is fixedly installed on one end of the processing shell, and a linkage assembly connecting the two sets of crushing rollers is provided on the other end of the processing shell. A crushing shell is detachably installed on the lower end face of the discharge shell. Two sets of main crushing rollers are rotatably installed in the crushing shell, and a second drive motor for driving the main crushing rollers to rotate is fixedly installed on the outer side of the crushing shell. Several auxiliary crushing rollers are installed below the main crushing rollers, and the auxiliary crushing rollers are arranged perpendicular to the main crushing rollers. A drive assembly for driving the several auxiliary crushing rollers to rotate synchronously is also provided on the front end face of the crushing shell.

[0008] As a preferred embodiment, the linkage assembly includes a first gear shaft and a second gear shaft meshing with the first gear shaft. The first gear shaft and the second gear shaft are respectively fixed to two sets of crushing rollers. A first transmission belt connected to the crushing rollers is sleeved on both the first gear shaft and the second gear shaft.

[0009] As a preferred embodiment, the crushing shell includes a connecting frame and a longitudinal shell, the longitudinal shell being installed on the lower end face of the connecting frame and fixedly connected to the connecting frame.

[0010] As a preferred embodiment, the lower end face of the discharge shell is provided with a connector frame for the connector frame to be inserted and installed, and the connector frame is fixedly connected to the discharge shell.

[0011] As a preferred embodiment, a flow divider block is fixedly installed in the middle of the inner side of the longitudinal shell, and flow guide blocks are symmetrically arranged at both ends of the flow divider block. The gap between the flow divider block and the flow guide block is set between the two sets of auxiliary crushing rollers, and both the flow divider block and the flow guide block are fixedly connected to the longitudinal shell.

[0012] As a preferred embodiment, the outer ends of both the main crushing roller and the auxiliary crushing roller are fitted with synchronous gears. The auxiliary crushing rollers are arranged in pairs, and the synchronous gears on the two auxiliary crushing rollers in each pair mesh with each other.

[0013] As a preferred embodiment, the drive assembly includes a drive shaft, a multi-head pulley, and a transmission belt. The drive shaft is rotatably mounted on the outer side of the longitudinal shell. The multi-head pulley is sleeved and fixed on the drive shaft. The transmission belt is connected to the multi-head pulley and a secondary crushing roller of each group. A third drive motor connected to the drive shaft is also fixedly mounted on the outer side of the longitudinal shell.

[0014] Compared with existing technologies, the beneficial effects of this utility model are as follows: By setting a multi-stage crushing structure, including two sets of crushing rollers, two sets of main crushing rollers, and several auxiliary crushing rollers, this application can perform multiple crushing and pulverizing processes on materials, greatly improving the crushing effect. The material is subjected to different forces at different crushing stages, such as compression, shearing, and rotary cutting, ensuring that the material is fully pulverized and meeting the needs of different industrial production and resource recycling. The linkage component ensures the synchronous rotation of the crushing rollers, while the combined structure of the crushing shell facilitates installation and disassembly. The inclusion of diverting blocks and guide blocks prevents material blockage. The crushing shell and discharge shell are connected by a plug-in installation method, facilitating the disassembly and replacement of the crushing shell. When equipment malfunctions or requires maintenance, relevant components can be quickly inspected and replaced, reducing equipment downtime and improving production efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a perspective view of the equipment support, processing shell, and linkage components used in the implementation of this utility model.

[0017] Figure 3 This is a perspective view of the crushing shell and the driving component in cooperation in an embodiment of this utility model;

[0018] Figure 4 yes Figure 3 A front view of the device shown;

[0019] Figure 5 yes Figure 4 A cross-sectional view of the device shown.

[0020] In the diagram: 1. Equipment support; 2. Processing shell; 20. Crushing roller; 201. First drive motor; 3. Discharge shell; 31. Insertion frame; 4. Linkage assembly; 41. First gear shaft; 42. Second gear shaft; 43. First transmission belt; 5. Crushing shell; 50. Main crushing roller; 501. Second drive motor; 502. Auxiliary crushing roller; 503. Synchronous gear; 51. Connecting frame; 52. Longitudinal shell; 520. Third drive motor; 521. Diverter block; 522. Guide block; 6. Drive assembly; 61. Drive shaft; 62. Multi-head pulley; 63. Transmission belt. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0022] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0023] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0024] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0025] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0026] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0027] Reference Figure 1 , Figure 2 and Figure 3 As shown, a multi-stage rotary crusher includes a support frame 1. A processing shell 2 is fixedly installed on the upper end of the support frame 1, and a discharge shell 3 is fixedly installed on the lower end face of the processing shell 2. Two sets of crushing rollers 20 are symmetrically installed in the processing shell 2. A first drive motor 201 is fixedly installed on one end of the processing shell 2, and a linkage assembly 4 connecting the two sets of crushing rollers 20 is provided on the other end of the processing shell 2. A crushing shell 5 is detachably installed on the lower end face of the discharge shell 3. Two sets of main crushing rollers 50 are rotatably installed in the crushing shell 5, and a second drive motor 501 for driving the main crushing rollers 50 to rotate is fixedly installed on the outer side of the crushing shell 5. Several auxiliary crushing rollers 502 are installed below the main crushing rollers 50, and the auxiliary crushing rollers 502 are arranged perpendicular to the main crushing rollers 50. A drive assembly 6 for driving the several auxiliary crushing rollers 502 to rotate synchronously is also provided on the front end face of the crushing shell 5. This multi-stage rotary crusher achieves multi-stage crushing and pulverizing functions by setting up two sets of crushing rollers 20, two sets of main crushing rollers 50, and several auxiliary crushing rollers 502. The material is first initially crushed by the two sets of crushing rollers 20, then enters the crushing shell 5 for further crushing by the main crushing rollers 50, and finally undergoes rotary crushing by the auxiliary crushing rollers 502, greatly improving the crushing effect and efficiency. The equipment support 1 provides stable support for the entire equipment, ensuring its normal operation. The first drive motor 201, the second drive motor 501, and the drive assembly 6 provide power to different crushing components, enabling them to work collaboratively to achieve a highly efficient crushing process.

[0028] Reference Figure 2 As shown, the linkage assembly 4 includes a first gear shaft 41 and a second gear shaft 42 meshing with the first gear shaft 41. The first gear shaft 41 and the second gear shaft 42 are respectively fixed to two sets of crushing rollers 20. A first conveyor belt 43, connected to the crushing rollers 20, is fitted onto both the first gear shaft 41 and the second gear shaft 42. The meshing of the first gear shaft 41 and the second gear shaft 42 in the linkage assembly 4, and their connection to the two sets of crushing rollers 20 via the first conveyor belt 43, enables the two sets of crushing rollers 20 to rotate synchronously in opposite directions. This design allows the material to be subjected to compression and shearing forces between the two sets of crushing rollers 20, enabling more effective preliminary crushing and improving crushing efficiency and effect. Simultaneously, the gear transmission method ensures the stability and reliability of power transmission and reduces power loss.

[0029] Reference Figure 3 , Figure 4 and Figure 5As shown, the crushing shell 5 includes a connecting frame 51 and a longitudinal shell 52. The longitudinal shell 52 is installed on the lower end face of the connecting frame 51 and is fixedly connected to the connecting frame 51. The crushing shell 5 adopts a combined structure of the connecting frame 51 and the longitudinal shell 52, which facilitates the installation and disassembly of the equipment. The connecting frame 51 can be connected to the discharge shell 3, while the longitudinal shell 52 provides installation space for the main crushing roller 50 and the auxiliary crushing roller 502 inside. This structural design makes the structure of the crushing shell 5 more reasonable and facilitates maintenance and cleaning. The lower end face of the discharge shell 3 is provided with a plug-in frame 31 for the connecting frame 51 to be inserted and installed. The plug-in frame 31 is fixedly connected to the discharge shell 3. The plug-in installation method of the plug-in frame 31 on the lower end face of the discharge shell 3 and the connecting frame 51 makes the connection between the crushing shell 5 and the discharge shell 3 more stable, and also facilitates the disassembly and replacement of the crushing shell 5. When maintenance or cleaning of the crushing shell 5 is required, it can be easily removed from the discharge shell 3, improving the maintainability of the equipment.

[0030] Reference Figure 3 , Figure 4 and Figure 5 As shown, a flow divider block 521 is fixedly installed in the middle of the inner side of the longitudinal shell 52, and flow guide blocks 522 are symmetrically arranged at both ends of the flow divider block 521. The gap between the flow divider block 521 and the flow guide block 522 is set between the two sets of auxiliary crushing rollers 502, and both the flow divider block 521 and the flow guide block 522 are fixedly connected to the longitudinal shell 52. The arrangement of the flow divider block 521 and the flow guide block 522 in the longitudinal shell 52 can divide and guide the material after it has been crushed by the main crushing roller 50. The material flows in the gap between the flow divider block 521 and the flow guide block 522 and is guided to the two sets of auxiliary crushing rollers 502, so that the material can be more evenly distributed on the auxiliary crushing rollers 502, improving the crushing efficiency and effect of the auxiliary crushing rollers 502 and avoiding material accumulation and blockage. Both the main crushing roller 50 and the auxiliary crushing roller 502 have a synchronous gear 503 fixedly fitted onto their outer ends. The auxiliary crushing rollers 502 are arranged in pairs, with the synchronous gears 503 on the two rollers in each pair meshing. This design of the synchronous gears 503 at the outer ends of the main crushing roller 50 and the auxiliary crushing roller 502, along with the meshing of the synchronous gears 503 on the pairs of auxiliary crushing rollers 502, ensures synchronous rotation between the auxiliary crushing rollers 502. This synchronous rotation allows the material to experience a more uniform shearing force between the auxiliary crushing rollers 502, further improving the crushing effect. Simultaneously, the transmission method of the synchronous gears 503 ensures the accuracy and stability of power transmission.

[0031] Reference Figure 3As shown, the drive assembly 6 includes a drive shaft 61, a multi-pulley 62, and a transmission belt 63. The drive shaft 61 is rotatably mounted on the outer surface of the longitudinal housing 52. The multi-pulley 62 is sleeved and fixed on the drive shaft 61. The transmission belt 63 connects the multi-pulley 62 and one auxiliary crushing roller 502 in each group. A third drive motor 520, connected to the drive shaft 61, is also fixedly mounted on the outer surface of the longitudinal housing 52. The combination of the drive shaft 61, multi-pulley 62, and transmission belt 63 in the drive assembly 6 can transmit the power of the third drive motor 520 to one auxiliary crushing roller 502 in each group, and then drive the other auxiliary crushing rollers 502 to rotate synchronously through the synchronous gear 503. The transmission method of the multi-pulley 62 and the transmission belt 63 has the advantages of smooth transmission and low noise, which can ensure the stable operation of the auxiliary crushing rollers 502. The third drive motor 520 provides a reliable power source for the rotation of the auxiliary crushing rollers 502.

[0032] Working principle:

[0033] When the equipment is running, the first drive motor 201 is started, driving two sets of crushing rollers 20 to rotate synchronously in opposite directions via the linkage component 4. The material to be crushed is fed into the processing shell 2, where it is subjected to compression and shearing forces between the two sets of crushing rollers 20 for initial crushing. The initially crushed material enters the crushing shell 5 through the discharge shell 3. The second drive motor 501 is started, driving two sets of main crushing rollers 50 to rotate for further crushing of the material. The third drive motor 520 is started, driving several auxiliary crushing rollers 502 to rotate synchronously via the drive component 6. After being crushed by the main crushing rollers 50, the material is evenly distributed between the auxiliary crushing rollers 502 under the guidance of the diverting block 521 and the guide block 522, where it is subjected to rotary shearing forces for final crushing. The crushed material is discharged from the lower end of the crushing shell 5.

[0034] Preferred equipment models and materials:

[0035] Motor Model: The first drive motor 201, the second drive motor 501, and the third drive motor 520 can be Y-series three-phase asynchronous motors. This series of motors has advantages such as high efficiency, good performance, and reliable operation. Specific models can be selected according to the power requirements of the equipment, such as Y132S-4. Gear Material: The first gear shaft 41 and the second gear shaft 42 in the linkage assembly 4, as well as the synchronous gear 503 at the outer end of the main crushing roller 50 and the auxiliary crushing roller 502, can be made of 40Cr alloy steel. This material has high strength and wear resistance, ensuring the service life and transmission effect of the gears. Crushing Roller Material: The surfaces of the crushing roller 20, the main crushing roller 50, and the auxiliary crushing roller 502 can be overlaid with high-chromium alloy material to improve their wear resistance and impact resistance. The interior can be made of high-quality carbon steel to ensure its strength and rigidity. Shell Material: The processing shell 2, the discharge shell 3, and the crushing shell 5 can be made of Q235 carbon steel. This material has good welding and processing performance, meeting the structural requirements of the equipment. Meanwhile, in order to improve the corrosion resistance of the casing, it can be painted.

[0036] The above are preferred embodiments of this utility model. Those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments described above. Any obvious improvements, substitutions or modifications made by those skilled in the art based on this utility model shall fall within the protection scope of this utility model.

Claims

1. A multi-stage rotary cutter-type crushing mill comprising a device support (1), characterized in that: The upper end of the equipment support (1) is fixedly installed with a processing shell (2), the lower end face of the processing shell (2) is fixedly installed with a discharge shell (3), and two sets of crushing rollers (20) are symmetrically installed in the processing shell (2). One end of the processing shell (2) is fixedly installed with a first drive motor (201), and the other end of the processing shell (2) is provided with a linkage assembly (4) connecting the two sets of crushing rollers (20). The lower end face of the discharge shell (3) is detachably installed with a crushing shell (5). Two sets of main crushing rollers (50) are rotatably installed in the crushing shell (5), and a second drive motor (501) for driving the main crushing rollers (50) to rotate is fixedly installed on the outer side of the crushing shell (5). Several auxiliary crushing rollers (502) are installed below the main crushing rollers (50), and the auxiliary crushing rollers (502) are arranged perpendicularly to the main crushing rollers (50). The front end face of the crushing shell (5) is also provided with a drive assembly (6) for driving several auxiliary crushing rollers (502) to rotate synchronously.

2. A multi-stage rotary cutter mill according to claim 1, characterised in that: The linkage assembly (4) includes a first gear shaft (41) and a second gear shaft (42) meshing with the first gear shaft (41). The first gear shaft (41) and the second gear shaft (42) are respectively fixed to two sets of crushing rollers (20). A first transmission belt (43) connected to the crushing rollers (20) is sleeved on both the first gear shaft (41) and the second gear shaft (42).

3. A multi-stage rotary cutter mill according to claim 1, characterized in that: The crushing shell (5) includes a connecting frame (51) and a longitudinal shell (52). The longitudinal shell (52) is installed on the lower end face of the connecting frame (51) and is fixedly connected to the connecting frame (51).

4. A multi-stage rotary cutter mill according to claim 3, characterised in that: The lower end face of the discharge shell (3) is provided with a connector frame (31) for the connector frame (51) to be inserted and installed. The connector frame (31) is fixedly connected to the discharge shell (3).

5. A multi-stage rotary cutter mill according to claim 3, wherein: A flow divider block (521) is fixedly installed in the middle of the inner side of the longitudinal shell (52), and flow guide blocks (522) are symmetrically arranged at both ends of the flow divider block (521). The gap between the flow divider block (521) and the flow guide block (522) is set between the two sets of auxiliary crushing rollers (502), and both the flow divider block (521) and the flow guide block (522) are fixedly connected to the longitudinal shell (52).

6. A multi-stage rotary cutter mill according to claim 2, wherein: The outer ends of the main crushing roller (50) and the auxiliary crushing roller (502) are fitted with synchronous gears (503). The auxiliary crushing rollers (502) are in pairs, and the synchronous gears (503) on the two auxiliary crushing rollers (502) in each pair mesh with each other.

7. A multi-stage rotary crusher according to claim 6, characterized in that: The drive assembly (6) includes a drive shaft (61), a multi-head pulley (62), and a transmission belt (63). The drive shaft (61) is rotatably mounted on the outer side of the longitudinal shell (52). The multi-head pulley (62) is sleeved and fixed on the drive shaft (61). The transmission belt (63) is connected to the multi-head pulley (62) and a secondary crushing roller (502) of each group. A third drive motor (520) connected to the drive shaft (61) is also fixedly mounted on the outer side of the longitudinal shell (52).

Images