Multi-shaft crusher

Abstract

The utility model discloses a multi-shaft pulverizer which comprises a pulverizer body, a feeding port is formed in the upper portion of the pulverizer body, a first pulverizing shaft is rotationally installed in the pulverizer body, a fourth pulverizing shaft is rotationally arranged in the feeding port, and one end of the first pulverizing shaft is in transmission connection with one end of the fourth pulverizing shaft through a belt. One end of the first crushing shaft is connected with fan blades, and the other end of the first crushing shaft drives the second crushing shaft and the third crushing shaft to rotate synchronously through the gear box. The crushing cutters on the first crushing shaft, the second crushing shaft, the third crushing shaft and the fourth crushing shaft are mutually staggered to form a plurality of cross points, so that the relative speed between the blades is obviously improved, materials can be more effectively crushed, particularly for tough materials, the crossed blades can timely knock off the materials wound on the cutters, and the crushing efficiency is improved. The materials are prevented from performing circular motion along with the crushing shaft, so that the crushing efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of crusher technology, specifically a multi-shaft crusher. Background Technology

[0002] In the field of crushing operations, crushers are widely used, covering multiple industries such as agriculture and manufacturing. However, crushers currently on the domestic market have many significant problems. Most crushers use fixed blades or hammer blades and are equipped with only one crushing shaft, on which crushing blades or hammer blades are installed. When crushing materials with a certain degree of toughness, such as straw or sugarcane leaves, the material is very easy to get tangled on the crushing blades, causing the material to rotate with the crushing blades. This not only greatly reduces the crushing efficiency but also causes the crushing blades to be wrapped, severely weakening their cutting performance. Moreover, existing crushers generally have low efficiency and high power consumption when pursuing small particle size, resulting in energy waste.

[0003] With the increasing demands for crushing quality and efficiency from various industries, as well as the growing emphasis on energy efficiency, there is an urgent need for a new type of high-efficiency crusher that can effectively solve the aforementioned problems. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model provides a multi-shaft crusher, which solves the problem of low efficiency of existing crushers.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-shaft crusher includes a machine body with a feed inlet at the top. A first crushing shaft is rotatably mounted inside the machine body, and a fourth crushing shaft is rotatably mounted inside the feed inlet. One end of the first crushing shaft and one end of the fourth crushing shaft are connected by a belt drive. A second crushing shaft and a third crushing shaft are rotatably mounted inside the machine body and located between the first and fourth crushing shafts. One end of the first crushing shaft is connected to a fan blade, and the other end drives the second and third crushing shafts to rotate synchronously via a gearbox. The first, second, third, and fourth crushing shafts rotate in the same direction. A screen is provided at the bottom of the machine body, and a receiving plate connected to the machine body is provided below the screen. A feeding channel is formed between the receiving plate and the fan inlet. The fan exhaust port is located at an angle upwards.

[0006] Preferably, the first, second, third, and fourth crushing shafts are all provided with intersecting crushing blades that form intersections. A first intersection is formed between the crushing blades of the first and third crushing shafts, a second intersection is formed between the crushing blades of the first and fourth crushing shafts, a third intersection is formed between the crushing blades of the first and second crushing shafts, a fourth intersection is formed between the second and fourth crushing shafts, and a fifth intersection is formed between the third and fourth crushing shafts.

[0007] Preferably, the inner wall of the feed inlet is provided with a fixed blade.

[0008] Preferably, the end of the first crushing shaft near the blower is connected to a drive device, which includes a motor or an electric motor.

[0009] Preferably, the belt is a V-belt structure.

[0010] Preferably, the gearbox includes a first gear fixedly mounted on a first crushing shaft, a second gear and a third gear respectively mounted on the second crushing shaft and the third crushing shaft, and a pair of reversing gears are provided inside the gearbox, with one end of the pair of reversing gears meshing with the first gear and the other end meshing with the second gear and the third gear respectively.

[0011] Beneficial effects

[0012] This utility model provides a multi-shaft crusher, which has the following beneficial effects:

[0013] With a multi-shaft design and all crushing shafts rotating in the same direction, the crushing blades on the first, second, third, and fourth crushing shafts intersect to form multiple intersection points. This structure significantly improves the relative speed between the blades, enabling more effective crushing of materials, especially tough materials. The intersecting blades can also promptly remove materials that are entangled in the blades, preventing the materials from moving in a circular motion with the crushing shafts, thereby greatly improving crushing efficiency.

[0014] The screen at the bottom of the machine body can screen the crushed material. By controlling the size of the screen aperture, the particle size of the crushed material can be precisely controlled to meet different production needs.

[0015] The fan blades are connected to the first crushing shaft. During the crushing process, the negative pressure generated by the fan makes it easier for the material to enter the machine. The crushed material is discharged from the fan exhaust port at an angle above through the feeding channel formed between the receiving plate and the fan inlet, realizing automatic material conveying, reducing manual operation and improving work efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram showing the distribution of the crushing shaft of this utility model.

[0017] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0018] Figure 3 This is a schematic diagram of the axonal structure of this utility model.

[0019] Figure 4 This is a schematic diagram of the gearbox structure of this utility model.

[0020] In the diagram: 1. Machine body; 2. Feed inlet; 3. First crushing shaft; 4. Fourth crushing shaft; 5. Belt; 6. Second crushing shaft; 7. Third crushing shaft; 8. Fan; 9. Gearbox; 10. Screen; 11. Receiving plate; 12. Crushing blade; 13. Fixed blade. 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4 This utility model provides a technical solution: a multi-shaft crusher, including a body 1, a feed inlet 2 on the top of the body 1, a first crushing shaft 3 rotatably installed inside the body 1, and a fourth crushing shaft 4 rotatably installed inside the feed inlet 2. One end of the first crushing shaft 3 and one end of the fourth crushing shaft 4 are connected by a belt 5. A second crushing shaft 6 and a third crushing shaft 7 are rotatably installed inside the body 1 and located between the first crushing shaft 3 and the fourth crushing shaft 4. One end of the first crushing shaft 3 is connected to the blades of a fan 8, and the other end drives the second crushing shaft 6 and the third crushing shaft 7 to rotate synchronously through a gearbox 9. The first crushing shaft 3, the second crushing shaft 6, the third crushing shaft 7 and the fourth crushing shaft 4 rotate in the same direction. A screen 10 is provided at the bottom of the body 1, and a receiving plate 11 connected to the body 1 is provided below the screen 10. A feeding channel is formed between the receiving plate 11 and the air inlet of the fan 8. The exhaust port of the fan 8 is located at an angle above.

[0023] By adopting the above technical solution, the material enters from the feed inlet 2 above the machine body 1. Under the negative pressure of the blower 8, it quickly enters the machine body 1. The drive device drives the first crushing shaft 3 to rotate. The first crushing shaft 3 is connected to the fourth crushing shaft 4 through the belt 5. At the same time, the gearbox 9 drives the second crushing shaft 6 and the third crushing shaft 7 to rotate synchronously. The four crushing shafts rotate in the same direction to crush the material. The crushed material passes through the screen 10. The material that meets the particle size requirements falls into the receiving plate 11 and is sent out by the blower 8 through the feeding channel. This realizes the functions of material feeding, crushing, screening and conveying, and provides a basic guarantee for efficient crushing operation.

[0024] In this embodiment, the first crushing shaft 3, the second crushing shaft 6, the third crushing shaft 7, and the fourth crushing shaft 4 are all provided with intersecting crushing blades 12, forming intersection points. A first intersection point is formed between the crushing blades 12 of the first crushing shaft 3 and the third crushing shaft 7, a second intersection point is formed between the crushing blades 12 of the first crushing shaft 3 and the fourth crushing shaft 4, a third intersection point is formed between the crushing blades 12 of the first crushing shaft 3 and the second crushing shaft 6, a fourth intersection point is formed between the second crushing shaft 6 and the fourth crushing shaft 4, and a fifth intersection point is formed between the third crushing shaft 7 and the fourth crushing shaft 4.

[0025] By adopting the above technical solution, during the crushing process, the crushing blades 12 on the first crushing shaft 3, the second crushing shaft 6, the third crushing shaft 7, and the fourth crushing shaft 4 rotate at high speed. At the five intersection points, the relative speed between the blades increases, which powerfully crushes the material. When material gets entangled on the crushing blades 12, the intersecting blades can knock it off, which significantly improves the crushing efficiency, effectively solves the problem of material getting entangled on the blades, and ensures the smooth progress of the crushing operation. In addition, the speed ratio of the gearbox 9 can be changed according to the speed requirements in this device, which improves the applicability range.

[0026] In this embodiment, the inner wall of the feed inlet 2 is provided with a fixed blade 13.

[0027] By adopting the above technical solution, when the material enters the feed inlet 2, the fixed blade 13 on the inner wall of the feed inlet 2 performs preliminary cutting and blocking of the material, making it easier for the material to enter the machine body 1 and be further crushed by the crushing blade 12 on the crushing shaft.

[0028] In this embodiment, the first crushing shaft 3 is further configured such that the end near the blower 8 is connected to a driving device, which includes a motor and an electric motor.

[0029] By adopting the above technical solution, the drive device provides power to the first crushing shaft 3, causing the first crushing shaft 3 to rotate at high speed, thereby driving other crushing shafts to work and realizing the operation of the entire crusher.

[0030] In this embodiment, the belt 5 is further configured as a V-belt structure.

[0031] By adopting the above technical solution, the V-belt structure has the advantages of smooth transmission, high transmission efficiency, and large friction, which can ensure stable and reliable power transmission between the first crushing shaft 3 and the fourth crushing shaft 4.

[0032] In this embodiment, the gearbox 9 is further configured such that the first gear is fixedly mounted on the first crushing shaft 3, the second crushing shaft 6 and the third crushing shaft 7 are respectively provided with a second gear and a third gear, and the gearbox 9 is provided with a pair of reversing gears, one end of the pair of reversing gears meshes with the first gear, and the other end meshes with the second gear and the third gear respectively.

[0033] Those skilled in the art can connect the components in this case sequentially. The specific connection and operation sequence should refer to the working principle described below. The detailed connection methods are well-known technologies in the field. The following mainly introduces the working principle and process.

[0034] Example: In use, the material to be crushed is evenly fed into the feed inlet 2 above the machine body 1. Under the negative pressure of the blower 8, the material quickly enters the machine body 1. It is first initially cut by the fixed blades 13 on the inner wall of the feed inlet 2, and then powerfully crushed by the crushing blades 12 that are intersected on the four crushing shafts. During the crushing process, the intersecting crushing blades 12 continuously knock off the material that is entangled in the blades, ensuring the smooth progress of the crushing operation. The crushed material passes through the screen 10 at the bottom of the machine body 1. The material that meets the particle size requirements falls into the receiving plate 11. It is then fed out obliquely upward through the feeding channel between the receiving plate 11 and the air inlet of the blower 8, thus completing the crushing and conveying process of the material. For the material that does not meet the particle size requirements, it continues to remain in the machine body 1 for further crushing.

[0035] After the crushing task is completed, turn off the power to the drive unit to stop the crusher from running. Clean the residual material inside the machine body 1, check the wear of each part, and replace or repair the worn parts. If it is necessary to adjust the output or crushing requirements, the number of crushing shafts can be increased or decreased according to the actual situation, and the overall size and gearbox can be adjusted. It is easy to use.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-shaft shredder comprising a machine body (1) provided with a feed inlet (2) above it, characterized in that, A first crushing shaft (3) is rotatably installed inside the machine body (1), and a fourth crushing shaft (4) is rotatably installed inside the feed inlet (2). One end of the first crushing shaft (3) and one end of the fourth crushing shaft (4) are connected by a belt (5). A second crushing shaft (6) and a third crushing shaft (7) are rotatably installed inside the machine body (1) and located between the first crushing shaft (3) and the fourth crushing shaft (4). One end of the first crushing shaft (3) is connected to the blades of a fan (8), and the other end is connected to a gearbox (8). 9) Drive the second crushing shaft (6) and the third crushing shaft (7) to rotate synchronously. The first crushing shaft (3), the second crushing shaft (6), the third crushing shaft (7) and the fourth crushing shaft (4) rotate in the same direction. A screen (10) is provided at the bottom of the machine body (1). A receiving plate (11) connected to the machine body (1) is provided below the screen (10). A feeding channel is formed between the receiving plate (11) and the air inlet of the blower (8). The exhaust port of the blower (8) is located at an angle above.

2. A multi-shaft shredder according to claim 1, characterized in that The first crushing shaft (3), the second crushing shaft (6), the third crushing shaft (7) and the fourth crushing shaft (4) are all provided with intersecting crushing blades (12) and form intersections. The first crushing shaft (3) and the third crushing shaft (7) form a first intersection, the first crushing shaft (3) and the fourth crushing shaft (4) form a second intersection, the first crushing shaft (3) and the second crushing shaft (6) form a third intersection, the second crushing shaft (6) and the fourth crushing shaft (4) form a fourth intersection, and the third crushing shaft (7) and the fourth crushing shaft (4) form a fifth intersection.

3. A multi-shaft shredder according to claim 2, wherein, The feed inlet (2) is provided with a fixed blade (13) on its inner wall.

4. A multi-shaft shredder according to claim 2, wherein, The first crushing shaft (3) is connected to a drive device at one end near the blower (8), and the drive device includes a motor and an electric motor.

5. A multi-shaft shredder according to claim 1, wherein, The belt (5) is a V-belt structure.

6. A multi-shaft shredder according to claim 1, wherein, The gearbox (9) includes a first gear fixedly mounted on the first crushing shaft (3), a second gear and a third gear respectively mounted on the second crushing shaft (6) and the third crushing shaft (7), and a pair of reversing gears are provided inside the gearbox (9). One end of the pair of reversing gears meshes with the first gear, and the other end meshes with the second gear and the third gear respectively.

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