A protective structure for a crusher rotor disc

Abstract

This application relates to the technical field of crusher component protection technology, specifically a protective structure for a crusher rotor disc, including a rotor disc body, connecting holes, a protective plate, a protective cover, mating holes, connecting sleeves, bolts, anti-vibration shims, and protective threaded sleeves. The connecting holes are arranged in a ring array and are located near the edge of the rotor disc body. The protective plate is circular in shape and is located on one side of the rotor disc body. The protective cover is located on the side of the rotor disc body away from the protective plate. The mating holes are arranged in a ring array and are located near the edges of the protective plate and the protective cover, respectively. The mating holes correspond to the connecting holes. The connecting sleeves are respectively disposed within the connecting holes, with both ends extending into the mating holes. The opening of the protective cover is mated to the edge of the protective plate. This application offers advantages such as ease of construction, effective protection against rotor wear during operation, extended rotor service life, and fast construction speed.

Description

Technical Field

[0001] This application relates to the technical field of crusher component protection technology, and in particular to a protective structure for a crusher rotor disc. Background Technology

[0002] Rotary crushers are a type of crushing equipment that uses a high-speed rotating rotor as its core working component. They crush materials through impact components such as hammers and plates, and are widely used in mining, building materials, and metallurgy. The crusher's chamber contains one or more rotors, the specific number depending on the hardness of the raw material. In the production of granite, coal gangue, and ores, multi-stage rotor models are used to increase the crusher's impact force. However, due to the high hardness of these materials, continuous collisions and friction with the rotor surface during production lead to wear after a period of use, accelerating the damage process and affecting normal production. Existing solutions include using a higher-hardness rotor treated with carburizing, and welding a wear-resistant coating onto the rotor surface. However, these methods are not only costly and time-consuming to implement, but also have poor protective effects, impacting normal production. Therefore, improvements to existing rotor protection measures are needed to address these problems. Summary of the Invention

[0003] To address the shortcomings of existing technologies, the purpose of this application is to provide a protective structure for a crusher rotor disc that offers convenient construction, effective protection during rotor operation, extended rotor service life, and fast construction speed.

[0004] The above-mentioned objective of this application is achieved through the following technical solution: A protective structure for a crusher rotor disc includes a rotor disc body, connecting holes, a protective plate, a protective cover, mating holes, connecting sleeves, bolts and fasteners, anti-vibration washers, and protective threaded sleeves. The connecting holes are arranged in a circular array and are located near the edge of the rotor disc body. The protective plate is circular in shape and is located on one side of the rotor disc body. The protective cover is located on the side of the rotor disc body away from the protective plate. The mating holes are arranged in a circular array and are located near the edges of the protective plate and the protective cover, respectively. The mating holes correspond to the connecting holes. The connecting sleeves are respectively located within the connecting holes, with both ends extending into the mating holes. The opening of the protective cover is mated to the edge of the protective plate. The bolts and fasteners are sequentially mated within the connecting sleeves, with adjacent bolts and fasteners facing opposite directions. The anti-vibration washers are respectively located on one side of the bolts and fasteners connected to the nuts. The protective threaded sleeves are threadedly connected to the ends of the bolts and fasteners corresponding to the anti-vibration washers, and the protective threaded sleeves enclose the anti-vibration washers and the nuts at the ends of the bolts and fasteners.

[0005] Furthermore, it also includes guide grooves, which are arranged in a ring array on the outer surfaces of the protective plate and the protective cover, respectively.

[0006] Furthermore, it also includes mating grooves and positioning protrusions. The mating grooves are arranged in a ring array on the surfaces of both sides of the rotor disk body. The positioning protrusions are respectively arranged in a ring array and fixedly connected to the inner surfaces of the protective plate and the protective cover. The positioning protrusions are respectively mated and connected with the mating grooves on both sides.

[0007] Furthermore, it also includes a curved edge, which is disposed on the surface of the edge of the protective cover.

[0008] Furthermore, it also includes mounting holes, which are arranged in a ring array on the surface of the rotor disk body near the center.

[0009] In summary, this application has at least one of the following beneficial technical effects: The protective structure of the crusher rotor disc, through its combined structure, can achieve comprehensive protection for the rotor disc body. The combination of protective plates and protective covers achieves a shell-like full-coverage, which can protect the rotor disc body from wear during use. When the external protective cover and protective plates wear out, they can be replaced. The protective structure of the crusher rotor disc is relatively simple to construct. The protective plates and protective covers on both sides are fixed by bolt fasteners in a through-hole manner. The protective thread sleeves can protect the ends of the bolt fasteners to prevent their threads from being worn and ensure normal disassembly in the future. The protective structure of the crusher rotor disc, with its matching grooves and positioning protrusions, allows the external protective cover and protective plate to rotate stably along with the rotor disc body. This ensures sufficient stability during rotation, reduces stress on bolt fasteners, and improves subsequent disassembly stability, meeting the needs of practical scenarios and demonstrating good practicality. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure provided in the embodiments of this application; Figure 2 This is a schematic diagram of the structure for removing the protective screw sleeve provided in an embodiment of this application; Figure 3 This is a schematic diagram of the left-side component structure provided in an embodiment of this application; Figure 4 This is a schematic diagram of the right-side component structure provided in an embodiment of this application; Figure 5 This is an enlarged structural diagram of point A provided in an embodiment of this application; Figure 6 This is a schematic diagram of the protective screw sleeve structure provided in the embodiment of this application.

[0011] Reference numerals in the attached drawings: 1. Rotor disc body; 2. Connecting hole; 3. Protective plate; 4. Protective cover; 5. Mating hole; 6. Connecting sleeve; 7. Bolt fastener; 8. Anti-vibration pad; 9. Protective screw sleeve; 10. Guide groove; 11. Mating groove; 12. Positioning protrusion; 13. Arc edge; 14. Mounting hole. Detailed Implementation

[0012] The present application will be further described in detail below with reference to the accompanying drawings.

[0013] To better understand the technical solutions shown in the embodiments of this application, the working principle of the existing protection structure of the crusher rotor disc will first be introduced.

[0014] In existing rotor crushers, some methods involve welding a steel plate to cover the rotor. After the steel plate wears down over time, it is cut off. Alternatively, reinforcing materials are coated onto the rotor surface to improve its wear resistance. However, both welding protection and coating with wear-resistant materials require a long downtime for construction. Furthermore, in some multi-rotor crushers, there are several rotor discs, which greatly prolongs the construction process. In order to improve the protection effect and shorten the construction cycle, the rotor disc protection structure proposed in this application is proposed.

[0015] Please see Figures 1 to 6 This application discloses a protective structure for a crusher rotor disc, comprising a rotor disc body 1, and further including: connecting holes 2, a protective plate 3, a protective cover 4, mating holes 5, a connecting sleeve 6, bolt fasteners 7, anti-vibration pads 8, and protective threaded sleeves 9. The connecting holes 2 are arranged in a ring array and are located near the edge of the rotor disc body 1. The protective plate 3 is circular in shape and is located on one side of the rotor disc body 1. The protective cover 4 is located on the side of the rotor disc body 1 away from the protective plate 3. The mating holes 5 are arranged in a ring array and are located near the edges of the protective plate 3 and the protective cover 4, respectively. The positions of the mating holes 5 and 2 are respectively corresponding to the connecting holes 2. The connecting sleeves 6 are respectively set in the connecting holes 2. The two ends of the connecting sleeves 6 extend into the mating holes 5. The opening of the protective cover 4 is mated and connected to the edge of the protective plate 3. The bolt fasteners 7 are sequentially mated and connected in the connecting sleeves 6. The orientations of two adjacent bolt fasteners 7 are opposite. The anti-vibration pads 8 are respectively set on one side of the connecting nut of the bolt fasteners 7. The protective thread sleeves 9 are threadedly connected to the end of the bolt fasteners 7 corresponding to the anti-vibration pads 8. The protective thread sleeves 9 wrap the anti-vibration pads 8 and the nuts at the ends of the bolt fasteners 7 inside.

[0016] Specifically, the rotor disc body 1 is generally disc-shaped, and some are spliced ​​disc structures. However, after being connected to the main shaft of the equipment, they are all disc-shaped. Therefore, the protective plate 3 and the protective cover 4 can be used to install different types of rotor disc bodies 1. The connecting hole 2 can correspond to the mating hole 5, and then the connecting sleeve 6 is installed through it. The setting of the connecting sleeve 6 can protect the connecting hole 2 on the rotor disc body 1, ensuring the load-bearing capacity during rotation and reducing damage. On the other hand, it can facilitate the installation of bolt fasteners 7. For the installation of bolt fasteners 7, through screws can be installed by flipping them in sequence. The two adjacent nuts and screws are located on the left and right sides respectively. This installation method can make the force evenly distributed and reduce the phenomenon of excessive wear on one side, improving the stability of the installation. The nuts and bolts at this location need to be anti-loosening and anti-vibration nuts. At the end of the bolt fastener 7 after installation, that is, at the exposed thread of the nut end, a protective thread sleeve 9 is installed. The protective thread sleeve 9 is opened on both sides. The planar opening mechanism, compared to the twisting methods of regular polygons and inner polygons, is more resistant to impact and wear before normal disassembly. Even if there is wear on both sides, the two planes can be quickly formed after grinding, making disassembly more convenient. In addition, an anti-vibration washer 8 is added between the protective screw sleeve 9 and the bolt fastener 7, which can make the installed protective screw sleeve 9 more stable and prevent it from loosening even under impact. The specific structure and shape of the anti-vibration washer 8 can be flexibly selected according to the needs and capital investment of the enterprise. Using the existing anti-vibration structure, this structure is relatively quick to install. The protective plate 3 and the protective cover 4 are preferably made of stainless steel alloy or tempered steel, which can be quickly replaced after wear after a period of use, which is less costly than replacing the rotor disc body 1. This structure can achieve a stable protection effect on the internal rotor disc body 1. After the protective plate 3 and the protective cover 4 are removed, the interior remains in its original state, which greatly extends the service life of the existing equipment and reduces the cost of equipment replacement and maintenance for enterprises, making it highly practical.

[0017] Please see Figure 3 and Figure 4 As another specific embodiment provided in the application, it also includes guide grooves 10, which are arranged in a ring array on the outer surfaces of the protective plate 3 and the protective cover 4 respectively.

[0018] Specifically, the guide groove 10 can reduce the adhesion of some impurities, and the liquid can slide off quickly when wet. Compared with a smooth surface, the centrifugal effect generated by the spiral guide groove 10 is better.

[0019] Please see Figure 3 and Figure 4As another specific embodiment provided in the application, it also includes mating grooves 11 and positioning protrusions 12. The mating grooves 11 are arranged in an annular array on the surfaces of both sides of the rotor disk body 1. The positioning protrusions 12 are respectively arranged in an annular array and fixedly connected to the inner surfaces of the protective plate 3 and the protective cover 4. The positioning protrusions 12 are respectively mated and connected with the mating grooves 11 on both sides.

[0020] Specifically, the mating groove 11 can be adapted to the positioning protrusions 12 on both sides, so that when rotating, the power can be transmitted through the positioning protrusions 12 and the mating groove 11, reducing the force on the connecting sleeve 6 and improving the firmness during use.

[0021] Please see Figure 1 As another specific embodiment provided in the application, it also includes an arc-shaped edge 13, which is disposed on the surface of the edge of the protective cover 4.

[0022] Specifically, the curved edge 13 reduces wear caused by collisions, and the thickened area helps extend the service life, meeting the needs of real-world scenarios.

[0023] Please see Figure 2 As another specific embodiment provided in the application, it also includes mounting holes 14, which are arranged in a ring array on the surface of the rotor disk body 1 near the center.

[0024] Specifically, the mounting hole 14 is designed to connect the hammer or other components. The mounting hole 14 can also be in the form of a keyway, spline, etc., to flexibly accommodate the installation of shafts or hammers of different machines. In actual use, holes can be made on the protective plate 3 and the protective cover 4 according to the actual installation to connect different components.

[0025] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A protective structure for a crusher rotor disc, comprising a rotor disc body (1), characterized in that, Also includes: The rotor disc body (1) is provided with a connecting hole (2), a protective plate (3), a protective cover (4), a mating hole (5), a connecting sleeve (6), bolt fasteners (7), anti-vibration pads (8), and a protective threaded sleeve (9). The connecting hole (2) is arranged in a ring array and is located near the edge of the rotor disc body (1). The protective plate (3) is circular in appearance and is located on one side of the rotor disc body (1). The protective cover (4) is located on the side of the rotor disc body (1) away from the protective plate (3). The mating holes (5) are arranged in a ring array and are located near the edges of the protective plate (3) and the protective cover (4). The mating holes (5) are respectively aligned with the connecting hole (2). The connecting sleeves (6) are respectively set in the connecting holes (2), and the two ends of the connecting sleeves (6) are respectively inserted into the mating holes (5). The opening of the protective cover (4) is connected to the edge of the protective plate (3). The bolt fasteners (7) are sequentially connected in the connecting sleeves (6). The orientations of two adjacent bolt fasteners (7) are opposite. The anti-vibration pads (8) are respectively set on one side of the connecting nut of the bolt fasteners (7). The protective thread sleeve (9) is threaded to the end of the bolt fastener (7) corresponding to the anti-vibration pad (8). The protective thread sleeve (9) wraps the anti-vibration pad (8) and the nut at the end of the bolt fastener (7) inside.

2. The protective structure for a crusher rotor disc according to claim 1, characterized in that: It also includes guide grooves (10), which are arranged in a ring array on the outer surfaces of the protective plate (3) and the protective cover (4).

3. The protective structure for a crusher rotor disc according to claim 1, characterized in that: It also includes mating grooves (11) and positioning protrusions (12). The mating grooves (11) are arranged in a ring array on the surfaces of both sides of the rotor disk body (1). The positioning protrusions (12) are arranged in a ring array and fixedly connected to the inner surfaces of the protective plate (3) and the protective cover (4). The positioning protrusions (12) are respectively mated and connected to the mating grooves (11) on both sides.

4. The protective structure for a crusher rotor disc according to claim 1, characterized in that: It also includes an arc-shaped edge (13), which is disposed on the surface of the edge of the protective cover (4).

5. The protective structure for a crusher rotor disc according to claim 1, characterized in that: It also includes mounting holes (14), which are arranged in a ring array on the surface of the rotor disk body (1) near the center.

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