Steel wire rope core tubular conveying belt with pipe diameter of 750 mm and width of 2650 mm

Abstract

The utility model relates to the technical field of tubular conveying belts, in particular to a steel wire rope core tubular conveying belt with the pipe diameter of 750 mm and the width of 2650 mm, which comprises an upper covering rubber layer, a first core rubber layer, an upper layer steel mesh, a second core rubber layer, a steel wire rope layer, a third core rubber layer, a lower layer steel mesh, a fourth core rubber layer and a lower covering rubber layer which are sequentially arranged. The steel mesh is formed by weaving warp-wise steel cords and weft-wise steel cords, and the weaving distance between the warp-wise steel cords and the weft-wise steel cords is 4-8mm. According to the utility model, the pipe diameter of the tubular conveying belt can be increased, and the tubular conveying belt has flexibility and rebound resilience while having high rigidity.

Description

Technical Field

[0001] The utility model relates to the technical field of tubular conveyor belts, in particular to a steel wire rope core tubular conveyor belt with a diameter of 750mm and a width of 2650mm. Background Art

[0002] As the country's environmental protection requirements increase, tubular belts, as a clean material transportation method, are experiencing rapid development. When transporting bulk materials such as ore, petroleum coke, limestone, gravel, concrete and metal slag, traditional conveyor belts are prone to material spillage, pipe collapse and poor sealing, which not only causes environmental pollution, but also makes the materials susceptible to rain erosion or sun damage. Therefore, the application of tubular belts is particularly important, as it can effectively reduce material leakage and environmental pollution, and ensure the cleanliness and safety of material transportation.

[0003] The Chinese invention patent application with publication number CN113581741A and publication date November 2, 2021 proposes a steel wire rope core tubular conveyor belt, which discloses a steel wire rope core tubular conveyor belt, including an upper covering rubber layer, a belt core layer, and a lower covering rubber layer arranged in sequence, wherein the belt core layer is filled with a reinforced steel mesh, a warp steel wire rope skeleton and a fabric reinforcement layer in sequence, the reinforced steel mesh includes weft long steel wire ropes, weft short steel wire ropes and braided ropes, the weft long steel wire ropes and the weft short steel wire ropes are woven into a mesh by braided ropes, a group of weft short steel wire ropes is arranged between two adjacent groups of weft long steel wire ropes, the lengths of all weft long steel wire ropes are equal, the lengths of all weft short steel wire ropes are equal, the weft long steel wire ropes and the weft short steel wire ropes are arranged in parallel, and the weft long steel wire ropes and the weft short steel wire ropes are perpendicular to the warp steel wire rope skeleton.

[0004] The optimized addition of the reinforcing steel mesh solves the problems of end stress concentration and irregular tube shape caused by the use of the same length of weft steel wire ropes in the reinforcing steel mesh in the prior art, thereby solving the problems of tube expansion and tube twisting during installation and use.

[0005] With regard to the above technical solution, the lateral rigidity adjustment layer of the braided rope or fabric reinforcement layer included therein is insufficient in lateral rigidity, and is prone to tube collapse in large-diameter tubular conveyor belts. When the tube diameter is small, the degree of tube collapse is small and the tube collapse phenomenon is not obvious. However, as the tube diameter increases, the degree of tube collapse increases, and deviation will easily occur during operation. The larger the tube diameter, the more difficult it will be to adjust the deviation, which has a greater impact on transportation. Therefore, the existing technology cannot meet the lateral rigidity requirements of large-diameter conveyor belts, which is likely to affect operation and cause economic losses. Utility Model Content

[0006] In order to have sufficient lateral rigidity and reduce the probability of conveyor belt collapse during large-diameter tubular transportation, the utility model provides a 750mm diameter and 2650mm wide steel wire rope core tubular conveyor belt.

[0007] The utility model provides a 750mm diameter 2650mm wide steel wire rope core tubular conveyor belt, which adopts the following technical solution:

[0008] A 750mm diameter 2650mm wide steel wire rope core tubular conveyor belt, comprising an upper covering rubber layer, a first core rubber layer, an upper steel mesh, a second core rubber layer, a steel wire rope layer, a third core rubber layer, a lower steel mesh, a fourth core rubber layer, and a lower covering rubber layer arranged in sequence, wherein the upper steel mesh and the lower steel mesh are both woven from warp steel cords and weft steel cords, and the weaving spacing of the warp steel cords and the weft steel cords are both 4-8mm.

[0009] By adopting the above technical solution, adding upper and lower layers of full-width steel mesh, the steel wires used in the steel mesh are steel cords, and are woven using a specific weaving spacing structure. This allows the material to have high strength and rigidity while also having a certain degree of flexibility and resilience, reducing the probability of large-diameter conveyor belt collapse and deviation during transportation.

[0010] Optionally, the width ratio of the upper steel mesh and the lower steel mesh is 1:1.1-1.7.

[0011] By adopting the above technical scheme, the ratio of the upper steel mesh and the lower steel mesh can make the upper steel mesh play a supporting role and the lower steel mesh play a gathering role. While meeting the rigidity required by the tubular belt, it can also improve the tubularity of large-diameter tubular belts.

[0012] Optionally, the width of the lower steel mesh accounts for 83%-98% of the width of the lower covering rubber layer.

[0013] By adopting the above technical solution, when the lower steel mesh accounts for 83%-98%, the rigidity of the material can be improved, and the supporting material can form a large-diameter tubular conveyor belt.

[0014] Optionally, the diameters of the warp steel cords and the weft steel cords are 1-2 mm.

[0015] By adopting the above technical solution, the diameter of the steel cord is 1-2mm, which can make the material have higher strength and lower elongation. Higher strength can improve the structural performance of the material, while lower elongation helps to improve the stability and controllability of the material. At the same time, it has better flexibility and adhesion with rubber, thereby improving the overall performance of the material, which is beneficial to the tube-forming and stability of large-diameter tubular conveyor belts.

[0016] Optionally, the thickness ratio of the first core rubber layer, the second core rubber layer, the steel wire rope layer, the third core rubber layer and the fourth core rubber layer is 2:4-16:3-20:4-16:2.

[0017] By adopting the above technical solution and the above ratio of core rubber layer to wire rope layer, the bonding strength between the wire core rubber and the wire rope before and after aging is high, the degree of adhesive attachment is better, the dynamic wire rope bonding fatigue is reduced, and after multiple operations under load conditions, no wire rope is pulled out, thereby improving the stability of the large-diameter tubular conveyor belt.

[0018] Optionally, the spacing between the upper steel mesh and the lower steel mesh is 10-25 mm.

[0019] By adopting the above technical solution, in a 2650mm tubular conveyor belt, the upper steel mesh and the lower steel mesh adopt the above spacing, which can enhance the support of the tubular conveyor belt, and at the same time make it flexible and easy to form a large-diameter tubular conveyor belt. At the same time, it is not easy to deviate during operation and the operation is stable.

[0020] Optionally, the thickness of the second core rubber layer and the third core rubber layer are both 4-8 mm.

[0021] By adopting the above technical solution, in a 2650mm tubular conveyor belt, using the above core rubber thickness, the resilience of the tubular conveyor belt can be enhanced, the rigidity and tube retention of the large-diameter tubular conveyor belt can be improved, and the rigidity of the tubular belt is not easy to decay after running for a period of time, and it is not easy to cause tube collapse and affect the conveying capacity of the tubular belt.

[0022] In summary, the present invention includes at least one of the following beneficial technical effects:

[0023] The above ratio of upper steel mesh to lower steel mesh can make the upper steel mesh play a supporting role and the lower steel mesh play a gathering role. While meeting the rigidity required by the tubular belt, it can also improve the tubularity of large diameter tubular belts.

[0024] By using the above-mentioned upper steel mesh and the above-mentioned lower steel mesh with the above-mentioned spacing, the support of the tubular conveyor belt can be enhanced, and at the same time, the belt has flexibility and enhanced tubularity, and is easy to form a large-diameter tubular conveyor belt. At the same time, it is not easy to deviate during operation and has stable operation.

[0025] By adopting the above core rubber thickness, the resilience of the tubular conveyor belt can be enhanced, and the rigidity and tube retention of the large-diameter tubular conveyor belt can be improved. After the tubular belt has been running for a period of time, the rigidity is not easy to decay, and it is not easy to cause tube collapse, which affects the conveying capacity of the tubular belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0027] Explanation of the accompanying drawings: 1. upper covering rubber layer; 2. first core rubber layer; 3. upper steel mesh; 4. second core rubber layer; 5. steel wire rope layer; 6. third core rubber layer; 7. lower steel mesh; 8. fourth core rubber layer; 9. lower covering rubber layer. Detailed implementation manners

[0028] The present utility model will be further described in detail below in conjunction with embodiments.

[0029] Embodiment 1: This embodiment discloses a steel wire rope core tubular conveyor belt with a diameter of 750 mm and a width of 2650 mm, which includes a top cover rubber layer 1, a first core rubber layer 2, an upper steel mesh 3, a second core rubber layer 4, a steel wire rope layer 5, a third core rubber layer 6, a lower steel mesh 7, a fourth core rubber layer 8, and a bottom cover rubber layer 9 arranged in sequence;

[0030] The upper steel mesh 3 and the lower steel mesh 7 are woven from warp steel cord and weft steel cord, and the weaving pitch of the warp steel cord and the weft steel cord is 6 mm, and the diameter is 2 mm;

[0031] The width of the upper steel mesh 3 is 2000 mm, and the width of the lower steel mesh 7 is 2600 mm;

[0032] The thickness of the top cover rubber layer 1 and the bottom cover rubber layer 9 is 13 mm, and the width is the same as the width of the steel wire rope core tubular conveyor belt with a diameter of 750 mm and a width of 2650 mm;

[0033] The thickness of the first core rubber layer 2 and the fourth core rubber layer 8 is 2 mm;

[0034] The thickness of the second core rubber layer 4 and the third core rubber layer 6 is 6 mm;

[0035] The thickness of the steel wire rope layer 5 is 6 mm and the width is 2595 mm;

[0036] The implementation principle of the steel wire rope core tubular conveyor belt with a diameter of 750 mm and a width of 2650 mm in this embodiment is: the parameters of the above technical solution can make the upper steel mesh 3 of the large-diameter tubular conveyor belt with a width of 2650 mm and a diameter of 750 mm play a supporting role, and the lower steel mesh 7 play a role in gathering, and at the same time has a certain flexibility and resilience, achieving a better effect, while meeting the required rigidity of the tubular belt, it can also improve the tube-forming property of the 750 mm tubular belt.

[0037] The above are all the preferred embodiments of the present utility model, and the protection scope of the present utility model is not limited by this. Therefore, all equivalent changes made according to the structure, shape, and principle of the present utility model should be covered within the protection scope of the present utility model.

Claims

1. A wire rope core tubular conveyor belt with a diameter of 750 mm and a width of 2650 mm, characterized in that: It includes an upper cover rubber layer (1), a first core rubber layer (2), an upper steel mesh (3), a second core rubber layer (4), a steel wire rope layer (5), a third core rubber layer (6), a lower steel mesh (7), a fourth core rubber layer (8), and a lower cover rubber layer (9) which are arranged in sequence. The upper steel mesh (3) and the lower steel mesh (7) are both woven from warp steel cord and weft steel cord, and the weaving spacing of the warp steel cord and the weft steel cord is 4 - 8 mm.

2. A steel wire rope core tubular conveyor belt with a diameter of 750 mm and a width of 2650 mm according to claim 1, characterized in that: The width ratio of the upper steel mesh (3) to the lower steel mesh (7) is 1:1.1 - 1.

7.

3. A steel wire rope core tubular conveyor belt with a diameter of 750 mm and a width of 2650 mm according to claim 1, characterized in that: The width of the lower steel mesh (7) accounts for 83% - 98% of the width of the lower cover rubber layer (9).

4. A steel wire rope core tubular conveyor belt with a diameter of 750 mm and a width of 2650 mm according to claim 1, characterized in that: The diameters of the warp steel cord and the weft steel cord are 1 - 2 mm.

5. A steel wire rope core tubular conveyor belt with a diameter of 750 mm and a width of 2650 mm according to claim 1, characterized in that: The thickness ratio of the first core rubber layer (2), the second core rubber layer (4), the steel wire rope layer (5), the third core rubber layer (6), and the fourth core rubber layer (8) is 2:4 - 16:3 - 20:4 - 16:

2.

6. A steel wire rope core tubular conveyor belt with a diameter of 750 mm and a width of 2650 mm according to claim 1, characterized in that: The spacing between the upper steel mesh (3) and the lower steel mesh (7) is 10 - 25 mm.

7. A wire rope core tubular conveyor belt with a diameter of 750 mm and a width of 2650 mm according to claim 1, characterized in that: The thicknesses of the second core rubber layer (4) and the third core rubber layer (6) are both 4 - 8 mm.

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