Wear-resistant lining plate structure of impact crusher

Abstract

The utility model discloses a wear-resistant lining plate structure of an impact crusher, which relates to the technical field of coal treatment and comprises a carbon steel base layer, and a rubber buffer layer is compositely connected to the inner side of the carbon steel base layer in a hot pressing manner. And the overall wear resistance of the lining plate is ensured not to be lost. The low alloy steel transition layer relieves stress generated due to the difference of thermal expansion coefficients among different materials through good toughness and ductility, cracks, deformation or stripping are prevented, and firm combination between layers is guaranteed. The rubber buffer layer effectively absorbs impact force and vibration, reduces damage to the carbon steel base layer, prolongs the service life of the lining plate, reduces noise and vibration, and improves the comfort level of a working environment. The carbon steel base layer provides stable structural support, it is ensured that the lining plate cannot deform or be damaged due to external loads in long-time use, and therefore reliable guarantee is provided for long-term operation of equipment.

Description

Technical Field

[0001] This utility model relates to the field of coal processing technology, and in particular to a wear-resistant liner structure for an impact crusher. Background Technology

[0002] Wear-resistant liners are essential components in many crushers and grinding equipment. Their main function is to improve the durability of the equipment and reduce wear under high-intensity working conditions. Wear-resistant liners are commonly used in industries such as ore crushing, coal processing, and stone processing to protect the internal cavities of the equipment from damage caused by the impact and friction of materials.

[0003] However, in existing technologies, traditional wear-resistant liners are usually made of a single material. Although they can provide basic wear resistance in the short term, they are often unable to effectively cope with high-intensity external forces and continuous wear when faced with strong impacts and high-frequency friction. Due to the brittleness or insufficient hardness of the material, the liner is prone to cracking, peeling or surface damage when subjected to excessive impact loads. This not only significantly shortens the service life of the liner, but also reduces the overall working efficiency of the equipment. Utility Model Content

[0004] The purpose of this invention is to solve the problem that existing liners are prone to cracking, peeling or surface damage when subjected to excessive impact loads, and to propose a wear-resistant liner structure for impact crushers.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a wear-resistant liner structure for an impact crusher, comprising a carbon steel base layer, a rubber buffer layer hot-pressed and compositely connected to the inner side of the carbon steel base layer, a low alloy steel transition layer provided on one side of the rubber buffer layer, a tungsten alloy wear-resistant layer bonded to the inner side of the low alloy steel transition layer, a wear-resistant coating sprayed on the inner surface of the tungsten alloy wear-resistant layer, and multiple wear-resistant blocks fixedly connected to the inner surface of the tungsten alloy wear-resistant layer.

[0006] Preferably, the carbon steel base layer is provided with connecting frames at the top and bottom, and the connecting frames have limit grooves on their inner sides.

[0007] Preferably, the carbon steel base layer, rubber buffer layer, low alloy steel transition layer and tungsten alloy wear-resistant layer are all bonded and adhered to the inner wall of the limiting groove.

[0008] Preferably, multiple support rods are welded between the two connecting frames.

[0009] Preferably, the rubber buffer layer has a slot on its inner side, and multiple protrusions are fixedly connected to the outer surface of the low alloy steel transition layer.

[0010] Preferably, the protrusion is inserted into the slot.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0012] 1. In this invention, the tungsten alloy wear-resistant layer effectively resists the impact of materials and abrasive media, ensuring that the overall wear resistance of the liner is not compromised. The low-alloy steel transition layer, with its good toughness and ductility, alleviates the stress caused by the difference in thermal expansion coefficients between different materials, preventing cracks, deformation, or peeling, and ensuring a strong bond between layers. The rubber buffer layer effectively absorbs impact and vibration, reducing damage to the carbon steel base layer, extending the service life of the liner, while also reducing noise and vibration, and improving the comfort of the working environment. The carbon steel base layer provides stable structural support, ensuring that the liner will not deform or be damaged by external loads during long-term use, thus providing reliable protection for the long-term operation of the equipment.

[0013] 2. In this invention, the design of the slots and protrusions effectively enhances the connection between the low-alloy steel transition layer and the rubber buffer layer, ensuring the stability and firmness of the connection. The cooperation of the slots and protrusions not only expands the contact area but also improves the bonding effect of the connection, enabling it to withstand greater external forces and vibrations, and preventing loosening or detachment. The wear-resistant block can effectively resist material erosion and wear, maintaining the integrity of the equipment's inner wall and extending its service life. The wear-resistant coating further enhances the wear resistance, not only improving the wear resistance of the wear-resistant block but also protecting the integrity of the low-alloy steel transition layer and the rubber buffer layer. Attached Figure Description

[0014] Figure 1 A three-dimensional structural diagram of a wear-resistant liner structure for an impact crusher is provided for this utility model.

[0015] Figure 2 This utility model presents a three-dimensional structural diagram showing the disassembled wear-resistant liner structure of an impact crusher.

[0016] Figure 3 This utility model provides a partial three-dimensional structural diagram of a wear-resistant liner structure for an impact crusher.

[0017] Figure 4 This utility model presents a top-view three-dimensional structural diagram of a wear-resistant liner structure for an impact crusher.

[0018] Legend: 1. Connecting frame; 2. Carbon steel base layer; 3. Rubber buffer layer; 4. Low alloy steel transition layer; 5. Tungsten alloy wear-resistant layer; 6. Wear-resistant block; 7. Support rod; 8. Slot; 9. Protrusion; 10. Limiting groove; 11. Wear-resistant coating. Detailed Implementation

[0019] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0020] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0021] Example 1: As Figure 1 - Figure 4 As shown, this utility model provides a wear-resistant liner structure for an impact crusher, including a carbon steel base layer 2, a rubber buffer layer 3 hot-pressed and compositely connected to the inner side of the carbon steel base layer 2, a low alloy steel transition layer 4 provided on one side of the rubber buffer layer 3, a tungsten alloy wear-resistant layer 5 bonded to the inner side of the low alloy steel transition layer 4, a wear-resistant coating 11 sprayed on the inner surface of the tungsten alloy wear-resistant layer 5, and multiple wear-resistant blocks 6 fixedly connected to the inner surface of the tungsten alloy wear-resistant layer 5.

[0022] The specific settings and functions of this embodiment will be described in detail below. The tungsten alloy wear-resistant layer 5 is in direct contact with the material or abrasive medium and is subjected to extreme wear. It effectively resists wear from the material or medium, prevents other layers of the liner from losing their function due to wear, and ensures the overall wear resistance of the liner.

[0023] The low-alloy steel transition layer 4 serves to alleviate stress between layers, especially between different materials where differences in material properties such as thermal expansion coefficients can generate significant stress. If this stress is not effectively alleviated, it can lead to cracks, deformation, or even peeling of the lining during use. The low-alloy steel transition layer 4, through its excellent toughness and ductility, alleviates stress caused by factors such as temperature differences and loads, thereby effectively ensuring a strong bond between the working layer and the base layer and preventing damage to the lining caused by uneven stress.

[0024] The rubber buffer layer 3 plays a crucial role. When the liner is subjected to material impact or mechanical vibration, it effectively absorbs and disperses this energy, reducing damage to the overall structure of the liner. The rubber buffer layer 3 effectively reduces impact force and vibration, minimizing direct damage to the carbon steel base layer 2, thereby extending the service life of the liner. This layer not only reduces equipment operating noise but also reduces vibration transmission, improving working environment comfort and reducing equipment maintenance frequency and costs.

[0025] The carbon steel base layer 2 serves as the structural support foundation for the entire wear-resistant liner. It bears the weight from each layer and external loads, ensuring the liner can stably maintain its shape and structure during operation. It possesses good structural strength, capable of withstanding pressure from the upper materials and external mechanical loads. The robustness and durability of the carbon steel base layer 2 ensure that the liner will not deform or be damaged by external loads during long-term use, providing the liner with fundamental stability.

[0026] Example 2: Figure 2 and Figure 3 As shown, the carbon steel base layer 2 has connecting frames 1 at both the top and bottom, and the inner side of the connecting frame 1 has a limiting groove 10. The carbon steel base layer 2, rubber buffer layer 3, low alloy steel transition layer 4, and tungsten alloy wear-resistant layer 5 are all bonded to the inner wall of the limiting groove 10. Multiple support rods 7 are welded between the two connecting frames 1. The inner side of the rubber buffer layer 3 has a slot 8, and multiple protrusions 9 are fixedly connected to the outer surface of the low alloy steel transition layer 4. The protrusions 9 are inserted into the slot 8.

[0027] The overall effect of this embodiment is that, through the design of the slot 8 and the protrusion 9, the low-alloy steel transition layer 4 and the rubber buffer layer 3 can achieve a firm locking connection. The cooperation between the slot 8 and the protrusion 9 not only enhances the stability of the connection but also effectively expands the contact area, which helps to further improve the bonding effect of the connection. Due to the advantages of this structure, the stability of the connection is greatly improved, and it can withstand greater external forces or vibrations, preventing the connection from loosening or falling off.

[0028] Based on this, the wear-resistant block 6 can effectively resist the erosion and wear from materials, ensuring the integrity of the equipment's inner wall and its long service life. The wear-resistant coating 11, as a reinforcing protective layer, further enhances the wear resistance, not only improving the wear resistance of the wear-resistant block 6 but also effectively protecting the integrity of other layers such as the low-alloy steel transition layer 4 and the rubber buffer layer 3. Through the protective effect of the wear-resistant coating 11, each layer of material can maintain a good working condition for a longer period, reducing the need for frequent maintenance and component replacement, thereby improving the equipment's working efficiency and economy.

[0029] The operating principle and usage of this device are as follows: The tungsten alloy wear-resistant layer 5 is in direct contact with the material or abrasive medium, bearing the main wear action and protecting the other layers of the liner from wear. It is the key layer to ensure the wear resistance of the liner. The low-alloy steel transition layer 4 alleviates the stress caused by the differences in material properties between the layers, ensures a firm bond between the working layer and the base layer, improves the overall performance and reliability of the liner, and prevents problems such as peeling of the working layer during use. The rubber buffer layer 3 can absorb and disperse the energy when the liner is subjected to material impact or vibration, reducing damage to the carbon steel base layer 2 and the entire liner structure, extending the service life of the liner, and also reducing noise and vibration during equipment operation. The carbon steel base layer 2 provides structural support for the entire wear-resistant liner, bearing the weight of each layer and external loads, ensuring that the liner maintains a stable shape and structure during use, and is the necessary foundation for the normal operation of the liner.

[0030] The low-alloy steel transition layer 4 and the rubber buffer layer 3 can be easily connected through the cooperation of the slot 8 and the protrusion 9, which enhances the firmness of the connection, increases the connection area, further enhances the bonding effect, and improves the stability of the connection. The wear-resistant block 6 can resist the erosion and wear of the inner wall of the equipment during material handling, while the wear-resistant coating 11 further improves the wear resistance, thereby effectively protecting the other layers.

[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A wear-resistant liner structure for an impact crusher, comprising a carbon steel base layer (2), characterized in that: The inner side of the carbon steel base layer (2) is hot-pressed and composite connected with a rubber buffer layer (3). A low alloy steel transition layer (4) is provided on one side of the rubber buffer layer (3). A tungsten alloy wear-resistant layer (5) is bonded and attached to the inner side of the low alloy steel transition layer (4). A wear-resistant coating (11) is sprayed on the inner surface of the tungsten alloy wear-resistant layer (5). Multiple wear-resistant blocks (6) are fixedly connected to the inner surface of the tungsten alloy wear-resistant layer (5).

2. The wear-resistant liner structure for an impact crusher according to claim 1, characterized in that: The carbon steel base layer (2) is provided with a connecting frame (1) at the top and bottom, and a limiting groove (10) is opened on the inner side of the connecting frame (1).

3. The wear-resistant liner structure for an impact crusher according to claim 1, characterized in that: The carbon steel base layer (2), rubber buffer layer (3), low alloy steel transition layer (4) and tungsten alloy wear-resistant layer (5) are all bonded to the inner wall of the limiting groove (10).

4. The wear-resistant liner structure for an impact crusher according to claim 2, characterized in that: Multiple support rods (7) are welded between the two connecting frames (1).

5. The wear-resistant liner structure for an impact crusher according to claim 1, characterized in that: The rubber buffer layer (3) has a slot (8) on its inner side, and multiple protrusions (9) are fixedly connected to the outer surface of the low alloy steel transition layer (4).

6. The wear-resistant liner structure for an impact crusher according to claim 5, characterized in that: The protrusion (9) is inserted into the slot (8).

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