Coal mine steel cord core flame-retardant conveyor belt

Abstract

The utility model relates to the technical field of conveying belt, especially to a steel wire rope core flame-retardant conveying belt for coal mine. It comprises an intermediate layer, the top of which is provided with an upper cover layer, and the bottom of which is provided with a lower cover layer. A plurality of steel wire rope cores are embedded in the intermediate layer in parallel. The upper cover layer, the intermediate layer and the lower cover layer are provided with wave-shaped reinforcing ribs that pass through the plurality of steel wire rope cores. The utility model provides a steel wire rope core flame-retardant conveying belt for coal mine, which has a more stable structure, stronger anti-delamination and anti-tearing capacity, better flame-retardant performance and more reliable operation.

Description

Technical Field

[0001] This utility model relates to the field of conveyor belt technology, and in particular to a flame-retardant steel wire rope core conveyor belt for coal mines. Background Technology

[0002] Underground coal mine transportation is a crucial link in coal production, and conveyor belts, as the main material-bearing and conveying components, directly affect production efficiency and operational safety. Coal mine conveyor belts typically need extremely high tensile strength to withstand heavy loads and long-distance transportation, while also possessing excellent flame-retardant properties to cope with the complex, flammable, and explosive environment underground and prevent fire accidents. Steel cord conveyor belts, with their internally embedded parallel high-strength steel cords as a skeleton layer, significantly improve overall tensile strength and impact resistance, making them the main type of conveyor belt for heavy-duty, long-distance transportation in underground coal mines. These conveyor belts generally consist of a central steel cord skeleton layer and rubber covering layers on the upper and lower surfaces of the skeleton layer to meet basic strength, wear resistance, and flame-retardant requirements.

[0003] However, in practical applications, especially under the harsh conditions of high intensity, high wear, and high impact in underground coal mines, existing steel cord flame-retardant conveyor belts still have some problems that urgently need to be solved. First, under long-term operation and complex stress, the various layers of the conveyor belt (especially between the cover layer and the skeleton layer) are prone to delamination or peeling, affecting structural integrity and service life. Second, although the steel cord provides the main longitudinal tensile strength, there is still room for improvement in resisting transverse tearing, impact damage, and overall structural stability, especially when encountering sharp material impacts or localized abnormal tension. Third, the positioning stability of the cover layer and the intermediate layer is insufficient, and relative slippage or displacement may occur during operation, affecting the uniform stress distribution and smooth operation of the belt. Furthermore, the flame-retardant properties of the conveyor belt surface and its drainage / chip removal capacity are also crucial for underground safety, and existing designs sometimes fall short in these aspects. Finally, the strength of the conveyor belt edges and the reliability of the connections are also key factors affecting its overall performance and service life. Utility Model Content

[0004] This invention provides a flame-retardant steel wire rope core conveyor belt for coal mines that has a more stable structure, stronger anti-delamination and anti-tear capabilities, better flame retardant performance, and more reliable operation.

[0005] The technical solution adopted by this utility model is as follows: a flame-retardant conveyor belt for coal mines with steel wire rope core, including an intermediate layer, an upper cover layer at the top of the intermediate layer, a lower cover layer at the bottom of the intermediate layer, multiple parallel steel wire rope cores embedded in the intermediate layer, and wavy reinforcing ribs that pass through the upper cover layer, intermediate layer, and lower cover layer and bypass the multiple steel wire rope cores.

[0006] As a further improvement of this utility model, side connecting strips are provided on both sides of the upper cover layer, the middle layer, and the lower cover layer.

[0007] As a further improvement of this utility model, the reinforcing rib penetrates the upper cover layer, the middle layer and the lower cover layer, and the two ends of the reinforcing rib are respectively located at the side connecting strip.

[0008] As a further improvement of this utility model, the top and bottom of the intermediate layer are provided with multiple positioning strips, and the bottom of the upper cover layer and the top of the lower cover layer are provided with positioning grooves that are adapted to the positioning strips.

[0009] As a further improvement of this utility model, the upper surface of the upper cover layer and the lower surface of the lower cover layer are both provided with herringbone flame-retardant patterns.

[0010] The beneficial effects of this utility model are as follows: By setting a wave-shaped reinforcing rib that runs through the upper cover layer, middle layer and lower cover layer and is wrapped with steel wire rope core, this utility model, together with the cooperative structure of side connecting belt, positioning strip and positioning groove, and herringbone flame-retardant texture, significantly improves the overall structural stability and anti-delamination and anti-tear performance of the conveyor belt from multiple dimensions such as structural connection strength, interlayer positioning stability, edge reliability and surface function. At the same time, it optimizes the flame retardant and drainage and chip removal effects, thereby greatly enhancing the operational reliability and service life of the conveyor belt under the harsh working conditions of underground coal mines. Attached Figure Description

[0011] Figure 1 This is a reference diagram showing the usage status of a flame-retardant conveyor belt with steel wire rope core for coal mines, according to this utility model.

[0012] Figure 2 This is a schematic diagram of the overall structure of a flame-retardant conveyor belt with steel wire rope core for coal mines according to this utility model;

[0013] Figure 3 This is an exploded view of the overall structure of a flame-retardant conveyor belt with steel wire rope core for coal mines according to this utility model.

[0014] Figure 4 This utility model relates to a flame-retardant conveyor belt with steel wire rope core for coal mines.

[0015] Figure 5 This utility model relates to a flame-retardant conveyor belt with steel wire rope core for coal mines.

[0016] As shown in the figure: 1. Middle layer; 2. Upper cover layer; 3. Lower cover layer; 4. Steel wire rope core; 5. Reinforcing rib; 6. Side connecting strip; 7. Positioning strip; 8. Positioning groove; 9. Flame retardant texture. Detailed Implementation

[0017] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly mentioned in this specification are defined relative to their structure and are relative concepts. Therefore, they may vary depending on their location and usage; thus, these or other directional terms should not be interpreted as restrictive terms.

[0018] The singular forms “a,” “the,” and “the” used in this specification are intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes one or more of the associated listed items, any or all possible combinations thereof.

[0019] To make the technical problems to be solved, the technical solutions, and the beneficial effects of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0020] This utility model provides the following: Figure 1-5 The shown is a flame-retardant conveyor belt for coal mines with steel wire rope cores, including an intermediate layer 1, an upper cover layer 2 on top of the intermediate layer 1, a lower cover layer 3 at the bottom of the intermediate layer 1, and multiple parallel steel wire rope cores 4 embedded in the intermediate layer 1. The upper cover layer 2, the intermediate layer 1, and the lower cover layer 3 are provided with wavy reinforcing ribs 5 that pass around the multiple steel wire rope cores 4.

[0021] like Figure 2-4 As shown, in this utility model, the upper cover layer 2, the middle layer 1, and the lower cover layer 3 are all provided with side connecting belts 6 on both sides. The side connecting belts 6 serve to reinforce the edge of the conveyor belt, improve the strength and connection reliability of the conveyor belt edge, and prevent the conveyor belt edge from delamination or damage.

[0022] like Figure 2-5 As shown, in this utility model, the reinforcing rib 5 penetrates the upper cover layer 2, the middle layer 1 and the lower cover layer 3, and the two ends of the reinforcing rib 5 are respectively located at the side connecting strip 6, so that the reinforcing rib can tightly connect the upper cover layer, the middle layer and the lower cover layer together to form a whole.

[0023] like Figure 3 As shown, in this utility model, the top and bottom of the intermediate layer 1 are provided with multiple positioning strips 7, and the bottom of the upper cover layer 2 and the top of the lower cover layer 3 are provided with positioning grooves 8 that are adapted to the positioning strips 7. The cooperative design of the positioning strips 7 and the positioning grooves 8 ensures the positioning stability between the upper cover layer 2, the lower cover layer 3 and the intermediate layer 1, avoids relative sliding or displacement between the layers during operation, ensures that the belt can be evenly stressed and achieve stable operation.

[0024] like Figure 1-4 As shown, the upper surface of the upper cover layer 2 and the lower surface of the lower cover layer 3 in this utility model are provided with herringbone flame-retardant patterns 9, which can effectively improve the flame-retardant performance of the conveyor belt surface and reduce the risk of fire.

[0025] Working Principle: In practical implementation, when the conveyor belt starts running, the multiple parallel steel wire rope cores 4 embedded inside provide the main longitudinal tensile strength for the conveyor belt, enabling it to withstand heavy loads and long-distance transportation. The corrugated reinforcing ribs 5 penetrate the upper cover layer 2, the middle layer 1, and the lower cover layer 3, and wrap around the multiple steel wire rope cores 4, with both ends located at the side connecting belts 6, tightly connecting each layer into a whole, enhancing the structural connection strength of the conveyor belt and effectively resisting transverse tearing and impact damage. During operation, the cooperation between the positioning strips 7 and the positioning grooves 8 ensures the positioning stability between the upper cover layer 2, the lower cover layer 3, and the middle layer 1, preventing relative sliding or displacement of the layers, ensuring uniform force distribution on the belt body, and achieving smooth operation. Simultaneously, the herringbone flame-retardant texture 9 on the upper surface of the upper cover layer 2 and the lower surface of the lower cover layer 3 not only improves the flame-retardant performance of the conveyor belt surface and reduces the risk of fire, but also has good drainage and chip removal capabilities, further ensuring the normal operation of the conveyor belt under the harsh working conditions of underground coal mines. In addition, the side connecting belt 6 reinforces the edge of the conveyor belt, improving the edge strength and connection reliability, and extending the service life of the conveyor belt.

[0026] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A flame-retardant conveyor belt with steel wire rope core for coal mines, comprising an intermediate layer (1), characterized in that: The middle layer (1) has an upper cover layer (2) at the top and a lower cover layer (3) at the bottom. Multiple parallel steel wire rope cores (4) are embedded in the middle layer (1). Wave-shaped reinforcing ribs (5) that pass through the upper cover layer (2), middle layer (1), and lower cover layer (3) are provided.

2. The flame-retardant conveyor belt with steel wire rope core for coal mines according to claim 1, characterized in that: The upper cover layer (2), the middle layer (1), and the lower cover layer (3) are all provided with side connecting strips (6) on both sides.

3. The flame-retardant conveyor belt with steel wire rope core for coal mines according to claim 2, characterized in that: The reinforcing rib (5) penetrates the upper cover layer (2), the middle layer (1) and the lower cover layer (3), and both ends of the reinforcing rib (5) are located at the side connecting strip (6).

4. The flame-retardant conveyor belt with steel wire rope core for coal mines according to claim 1, characterized in that: The middle layer (1) is provided with multiple positioning strips (7) at the top and bottom, and the upper cover layer (2) at the bottom and the lower cover layer (3) at the top are provided with positioning grooves (8) that are adapted to the positioning strips (7).

5. A flame-retardant conveyor belt with steel wire rope core for coal mines according to claim 1, characterized in that: The upper surface of the upper cover layer (2) and the lower surface of the lower cover layer (3) are both provided with herringbone flame-retardant patterns (9).

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