Aramid fabric whole-core flame-retardant conveying belt for coal mine

Abstract

The utility model relates to the technical field of whole-core flame-retardant conveying belts, in particular to an aramid fabric whole-core flame-retardant conveying belt for a coal mine, which comprises flame-retardant glue, a belt core, an upper glue layer, a lower glue layer and edge glue. The belt core is wrapped with a framework, the upper end face and the lower end face of the framework are each provided with a plurality of edge hanging strips A, and the two sides of the framework are each provided with an edge hanging strip B; the upper adhesive layer is connected with the upper end face of the framework through flame-retardant adhesive, and the upper adhesive layer covers the outer part of the hanging edge strip A on the upper end face of the framework; the lower glue layer is connected with the lower end face of the framework through flame-retardant glue, and the lower glue layer covers the outer part of the hanging edge strip A on the lower end face of the framework; the edge glue is connected with the side face of the framework through flame-retardant glue, and the two ends of the edge glue are connected with the upper glue layer and the lower glue layer respectively. The connecting firmness between the rubber layer and the belt core can be effectively improved, the tensile deformation resistance and the bearing and conveying capacity of the whole conveying belt are improved, and meanwhile the service life of the conveying belt is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to whole core flame -retardant conveyor belt technical field, especially to a kind of aramid fabric whole core flame -retardant conveyor belt for coal mine. BACKGROUND

[0002] Aramid fabric whole core flame -retardant conveyor belt is a kind of conveyor belt using aramid fiber as framework body.Aramid fiber is a kind of high-performance synthetic fiber material, and the belt core woven by aramid fiber can replace the traditional steel core structure belt core, effectively reducing the self-weight of traditional conveyor belt.

[0003] The technical scheme disclosed by Chinese patent with authorization announcement No.CN215438189U improves the strength and toughness of the whole by combining radial lines and weft lines in the inner core layer, reduces the overall mass, and the material price is lower than the traditional belt body raw material price, and the overall friction is increased by cooperating with anti-skid lines, and in the covering layer, the surface plasticization beads are blended with polyvinyl chloride powder resin, chlorinated polyethylene rubber and thermoplastic polyurethane elastomer, which have good flame-retardant performance, high tensile strength, excellent elasticity and good wear resistance.

[0004] However, the device still has the following problems: due to the lack of positioning structure, the covering layer is easy to separate from the inner core layer, which leads to glue opening or wrinkling, thereby affecting the conveying stability of the conveyor belt, and the conveyor belt structure is too simple, and the carrying capacity is poor. UTILITY MODEL CONTENT

[0005] The utility model aims at the problems in the background art and provides an aramid fabric whole core flame -retardant conveyor belt for coal mine.

[0006] The technical scheme of the utility model: an aramid fabric whole core flame -retardant conveyor belt for coal mine, comprising a belt core, a framework is arranged outside the belt core, a plurality of hanging edge strips A are arranged on the upper end face and the lower end face of the framework, and hanging edge strips B are arranged on both sides of the framework.

[0007] A glue layer is arranged on the upper end face of the framework, and the glue layer is arranged outside the hanging edge strips A on the upper end face of the framework.

[0008] A lower glue layer is arranged on the lower end face of the framework, and the lower glue layer is arranged outside the hanging edge strips A on the lower end face of the framework.

[0009] And a side glue layer is arranged on the side face of the framework, and the two ends of the side glue layer are connected with the upper glue layer and the lower glue layer respectively.

[0010] Preferably, the upper glue layer, the lower glue layer and the side glue layer are all composite glue layers with flame-retardant and wear-resistant effects.

[0011] Preferably, the core comprises a plurality of aramid fabric layers, and each aramid fabric layer comprises a plurality of warp threads and a plurality of weft threads, the warp threads and the weft threads are interlaced and floatingly woven, and two adjacent aramid fabric layers are connected by the fire-retardant glue.

[0012] Preferably, the cross sections of the hanging edge strip A and the hanging edge strip B are both T-shaped, and the radial direction of the hanging edge strip A is parallel to the radial direction of the core.

[0013] Preferably, a plurality of anti-skid grooves A are arranged on the hanging edge strip A along the radial direction of the hanging edge strip A, the anti-skid grooves A are perpendicular to the radial direction of the core, and a plurality of anti-skid grooves B are arranged on the hanging edge strip B along the radial direction of the hanging edge strip B, the anti-skid grooves B are perpendicular to the radial direction of the core.

[0014] Preferably, the framework is a hollow PVG fire-retardant layer, and the core is located in the middle channel of the framework.

[0015] Preferably, the upper glue layer and the lower glue layer are respectively provided with a tooth groove A and a tooth groove B on the sides away from each other, and the tooth groove A and the tooth groove B are both perpendicular to the radial direction of the core.

[0016] Compared with the prior art, the utility model has the advantages of the following beneficial technical effects:

[0017] By sheathing a layer of framework outside the core, the overall tensile property of the conveying belt is effectively improved, so that the surface of the conveying belt will not be excessively deformed when bearing a large weight of coal mines, thereby effectively improving the load bearing capacity; by arranging the hanging edge strip A and the hanging edge strip B on the framework, the upper glue layer, the lower glue layer and the edge glue can be stably and firmly connected with the framework and are not prone to opening; meanwhile, the tooth grooves are arranged on the surfaces of the upper glue layer and the lower glue layer, so that the friction force of the conveying belt when conveying coal mines and the friction force between the conveying belt and the supporting roller are effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 Fig. 1 is a structural schematic view of an embodiment of the utility model;

[0019] Figure 2 Fig. 2 is a structural schematic view of the framework;

[0020] Figure 3 Fig. 3 is a structural schematic view of the core.

[0021] Fig. 1 is a structural schematic view of an embodiment of the utility model; DETAILED DESCRIPTION

[0022] Embodiment I

[0023] As Figures 1-3As shown, this utility model proposes a flame-retardant aramid fabric solid core conveyor belt for coal mines, comprising flame-retardant adhesive, belt core 1, upper adhesive layer 3, lower adhesive layer 4, and edge adhesive 5. The belt core 1 comprises multiple layers of aramid fabric, each layer of which includes several warp threads 101 and several weft threads 102. The warp threads 101 and weft threads 102 are interlaced and woven in floating layers, and adjacent layers of aramid fabric are connected by flame-retardant adhesive. The belt core 1 is externally covered by a skeleton 2, which is a hollow PVG flame-retardant layer, with the belt core 1 located in its central channel. Several edge strips A21 are provided on the upper and lower surfaces of the skeleton 2, and edge strips B22 are provided on both sides of the skeleton 2. The cross-section of edge strips A21 and edge strips B22 is T-shaped, and the radial direction of edge strip A21 is parallel to the radial direction of the belt core 1. The upper adhesive layer 3 is connected to the upper surface of the frame 2 via flame-retardant adhesive, and the upper adhesive layer 3 covers the outside of the hanging strip A21 on the upper surface of the frame 2. The lower adhesive layer 4 is connected to the lower surface of the frame 2 via flame-retardant adhesive, and the lower adhesive layer 4 covers the outside of the hanging strip A21 on the lower surface of the frame 2. The edge adhesive 5 is connected to the side of the frame 2 via flame-retardant adhesive, and both ends of the edge adhesive 5 are connected to the upper adhesive layer 3 and the lower adhesive layer 4, respectively. The upper adhesive layer 3, the lower adhesive layer 4, and the edge adhesive 5 are all composite adhesive layers with flame-retardant and wear-resistant properties.

[0024] In this embodiment, the frame 2 is a PVG flame-retardant structure, which can effectively improve the tensile strength and flame-retardant properties of the entire conveyor belt. Furthermore, the T-shaped hanging strips on its surface can effectively improve the connection stability between the adhesive layer and the frame, preventing delamination. At the same time, the anti-slip grooves on the hanging strips can further prevent the adhesive layer from sliding relative to the frame after delamination, thereby avoiding wrinkles in the surface adhesive layer.

[0025] Example 2

[0026] like Figure 2 As shown, the present invention proposes a flame-retardant aramid fabric solid core conveyor belt for coal mines. Compared with Embodiment 1, the side strip A21 is provided with several anti-slip grooves A211 along its radial direction. The anti-slip grooves A211 are perpendicular to the radial direction of the belt core 1. The side strip B22 is provided with several anti-slip grooves B221 along its radial direction. The anti-slip grooves B221 are perpendicular to the radial direction of the belt core 1.

[0027] In this embodiment, the structure of the anti-slip groove effectively prevents the upper adhesive layer 3, the lower adhesive layer 4, and the edge adhesive layer 5 from sliding relative to the frame 2 during the coal conveying process, thereby avoiding wrinkles in the adhesive layer.

[0028] Example 3

[0029] like Figure 1 As shown, the present invention proposes a flame-retardant conveyor belt for coal mines made of aramid fabric. Compared with Embodiment 1, the upper rubber layer 3 and the lower rubber layer 4 are respectively provided with toothed grooves A31 and B41 on the side away from each other. Both toothed grooves A31 and B41 are perpendicular to the radial direction of the belt core 1.

[0030] In the embodiment, the tooth groove A31 and the tooth groove B41 are arranged, so that the contact friction between the conveying belt surface and the coal mine is increased, the conveying stability is improved, the friction between the conveying belt body and the supporting roller is increased, and the operation stability of the conveying belt body is further improved, and the slipping is prevented.

[0031] The above describes the embodiments of the utility model in detail in combination with the drawings, but the utility model is not limited to this, and various changes can be made within the knowledge range of the technical personnel in the technical field without departing from the purpose of the utility model.

Claims

1. An aramid fabric core-wound flame resistant conveyor belt for coal mining, characterized in that, Comprising a belt core (1), the outer covering of the belt core (1) is provided with a framework (2), a plurality of hanging edge strips A (21) are arranged on the upper end face and the lower end face of the framework (2), and a plurality of hanging edge strips B (22) are arranged on both sides of the framework (2); An upper glue layer (3) is connected to the upper end face of the framework (2) by flame-retardant glue, and the upper glue layer (3) covers the outside of the hanging edge strip A (21) on the upper end face of the framework (2); A lower glue layer (4) is connected to the lower end face of the framework (2) by flame-retardant glue, and the lower glue layer (4) covers the outside of the hanging edge strip A (21) on the lower end face of the framework (2); And an edge glue (5) is connected to the side face of the framework (2) by flame-retardant glue, and the two ends of the edge glue (5) are connected with the upper glue layer (3) and the lower glue layer (4) respectively.

2. The aramid fabric core-wrapped fire resistant conveyor belt for coal mines according to claim 1, characterized in that, The upper glue layer (3), the lower glue layer (4) and the edge glue (5) are all composite glue layers with flame-retardant and wear-resistant effects.

3. The aramid fabric core-wrapped fire resistant conveyor belt for coal mines according to claim 1, characterized in that, The belt core (1) comprises a plurality of layers of aramid fabric, and each layer of aramid fabric comprises a plurality of warp threads (101) and a plurality of weft threads (102), the warp threads (101) and the weft threads (102) are interlaced and float-woven, and adjacent two layers of aramid fabric are connected by flame-retardant glue.

4. The aramid fabric core-wrapped fire resistant conveyor belt for coal mines according to claim 1, characterized in that, The cross sections of the hanging edge strips A (21) and B (22) are T-shaped, and the radial direction of the hanging edge strip A (21) is parallel to the radial direction of the belt core (1).

5. The aramid fabric core-wrapped fire resistant conveyor belt for coal mines according to claim 4, characterized in that, A plurality of anti-skid grooves A (211) are arranged on the hanging edge strip A (21) along its radial direction, the anti-skid grooves A (211) are perpendicular to the radial direction of the belt core (1), and a plurality of anti-skid grooves B (221) are arranged on the hanging edge strip B (22) along its radial direction, the anti-skid grooves B (221) are perpendicular to the radial direction of the belt core (1).

6. The aramid fabric core-wrapped fire resistant conveyor belt for coal mines according to claim 1, characterized in that, The framework (2) is a PVG flame-retardant layer with a hollow structure, and the belt core (1) is located in the middle channel thereof.

7. The aramid fabric core-wrapped fire resistant conveyor belt for coal mines according to claim 1, characterized in that, The side of the upper glue layer (3) and the lower glue layer (4) away from each other is respectively provided with a tooth groove A (31) and a tooth groove B (41), and the tooth groove A (31) and the tooth groove B (41) are both perpendicular to the radial direction of the belt core (1).

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