A conveyor belt with high extension and small turning capability

Abstract

The present invention discloses a high-elongation conveyor belt capable of small turns, and relates to the technical field of conveyor belts. The present invention comprises a skeleton, and upper covering rubber and lower covering rubber are respectively arranged on both sides of the skeleton; the skeleton comprises an upper structure, an intermediate structure and a lower structure, the intermediate structure is located between the upper structure and the lower structure, the intermediate structure is arranged along the radial direction of the conveyor belt, and the upper structure and the lower structure are both arranged along the transverse direction of the conveyor belt; the intermediate structure comprises aramid cloth and rubber, the aramid cloth is arranged in the middle part, the rubber is arranged on both sides of the aramid cloth, and the rubber is located at the edge of the conveyor belt. The present invention achieves the effect of high elongation through the structure combining aramid cloth and rubber, meets the requirement of relatively large inner and outer expansion and contraction of the conveyor belt when the conveyor belt turns with a small radius, and solves the problem that the conveyor belt cannot turn sharply with a small radius; the high requirements for wear resistance and impact resistance are met by arranging the upper covering rubber and the lower covering rubber, and the best protection is provided for the aramid cloth.

Description

Technical Field

[0001] The invention relates to the technical field of conveyor belts, and in particular to a conveyor belt with high elongation and small turning capability. Background Art

[0002] With the development of society, conveyor belts are widely used in cement, coking, metallurgy, chemical industry, steel and other fields, and people have more and more types and requirements for conveyor belts. Due to the complexity of the working terrain, under the condition of small turning radius, the elastic expansion and contraction of the conveyor belt is required to be higher. The traditional conveyor belt has poor adaptability to the small radius turning condition and cannot meet the requirements of small radius turning. Forcible use can easily cause bending, wear, tear, damage and short life of the conveyor belt at the turning point. In addition, the elongation of the traditional conveyor belt is small, which leads to reduced carrying and transportation capacity.

[0003] Therefore, it is urgent to design a conveyor belt with high extension and small turning. Summary of the invention

[0004] The main purpose of the present invention is to provide a high-extension conveyor belt capable of small turns, so as to solve the problems existing in the prior art.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A high-extension conveyor belt capable of small turns comprises a frame, wherein upper covering rubber and lower covering rubber are respectively provided on both sides of the frame;

[0007] The skeleton comprises an upper structure, an intermediate structure and a lower structure, wherein the intermediate structure is located between the upper structure and the lower structure, the intermediate structure is arranged along the radial direction of the conveyor belt, and the upper structure and the lower structure are both arranged along the transverse direction of the conveyor belt;

[0008] The middle layer structure comprises aramid cloth and rubber, wherein the aramid cloth is arranged in the middle part, and the rubber is arranged on both sides of the aramid cloth, and the rubber is located at the edge of the conveyor belt.

[0009] Furthermore, the upper structure and the lower structure each include two layers of transverse cord fabrics, and the thickness of each layer of the transverse cord fabrics is 1-1.5 mm.

[0010] Furthermore, a 40-60 mm overlap is provided at the seams of the transverse cord fabrics.

[0011] Furthermore, the transverse cord fabrics of the upper structure are respectively the first cord fabric and the second cord fabric from top to bottom, the top surface of the first cord fabric is bonded to the upper covering adhesive, and the top surface and bottom surface of the second cord fabric are respectively bonded to the first cord fabric and the middle layer structure.

[0012] Furthermore, the first cord fabric and the second cord fabric are arranged crosswise on the left and right, the first cord fabric is arranged at an angle of 7.5° along the transverse axis, and the second cord fabric is arranged at an angle of -7.5° along the transverse axis.

[0013] Furthermore, the transverse cord fabrics of the lower structure are respectively the third cord fabric and the fourth cord fabric from top to bottom, the top surface of the third cord fabric is bonded to the middle layer structure, and the top surface and bottom surface of the fourth cord fabric are respectively bonded to the third cord fabric and the lower covering adhesive.

[0014] Furthermore, the third cord fabric and the fourth cord fabric are arranged crosswise on the left and right, the third cord fabric is arranged at an angle of 7.5° along the transverse axis, and the fourth cord fabric is arranged at an angle of -7.5° along the transverse axis.

[0015] Furthermore, the aramid cloth has a tensile strength of 2500 N / mm and a thickness of 5-8 mm.

[0016] Furthermore, the overall width of the conveyor belt is 1000 mm, and the width of the aramid cloth is 150-200 mm.

[0017] Furthermore, the tensile strength of the upper cover rubber and the lower cover rubber are both ≥18Mpa, and the thickness is both 4-6mm.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The middle layer structure of the conveyor belt is set to a combination of aramid cloth and rubber, and the rubber is set at the edge of the conveyor belt, which increases the elastic expansion and contraction of the conveyor belt. It has high ductility and can meet the different deformation requirements of the inside and outside of the conveyor belt when the conveyor turns at a small radius. It can achieve elastic expansion and contraction with a large elongation rate according to the operating conditions to ensure that the conveyor belt is not damaged, solving the problem that traditional conveyor belts cannot make sharp turns at a small radius.

[0020] The high requirements for wear resistance and impact resistance are met by setting the upper cover rubber and the lower cover rubber, providing the best protection for the aramid cloth and rubber. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic cross-sectional view of the overall structure of the present invention.

[0022] Figure 2 It is a schematic cross-sectional view of the skeleton structure of the present invention.

[0023] Among them, 1 is a skeleton, 2 is an upper covering rubber, 3 is a lower covering rubber, 4 is a first cord fabric, 5 is a second cord fabric, 6 is a third cord fabric, 7 is a fourth cord fabric, 8 is an aramid fabric, and 9 is rubber. DETAILED DESCRIPTION

[0024] The technical solution of the present invention is further described below through the accompanying drawings and embodiments.

[0025] Combination Figure 1 to Figure 2 The present invention provides a high-extension conveyor belt with small turns, comprising an upper covering rubber 1, a skeleton 2 and a lower covering rubber 3 arranged in sequence from top to bottom, the skeleton 2 comprises an upper structure, an intermediate structure and a lower structure arranged in sequence from top to bottom, the upper structure and the lower structure both comprise two layers of transverse cord fabrics, the intermediate structure comprises aramid cloth 8 and rubber 9, the aramid cloth 8 is arranged in the middle, the rubber 9 is arranged on both sides of the aramid cloth 8, and the rubber 9 is located at the edge of the conveyor belt.

[0026] In this embodiment, the upper covering rubber 1 and the lower covering rubber 3 are respectively located on both sides of the skeleton 2; the middle layer structure is located between the upper structure and the lower structure, the middle layer structure is arranged along the radial direction of the conveyor belt, and the upper structure and the lower structure are both arranged along the transverse direction of the conveyor belt.

[0027] This embodiment achieves the effect of high elongation and small turning through the structure of combining aramid cloth 8 and rubber 9, meets the requirement of relatively large expansion and contraction of the inner and outer sides of the conveyor belt when the conveyor belt turns with a small radius, and solves the problem that the conveyor belt cannot make a sharp turn with a small radius. The upper cover rubber 1 and the lower cover rubber 3 are unvulcanized rubber materials, which are bonded to both sides of the skeleton 2 after being heated, pressurized and vulcanized. They have excellent tear resistance, impact resistance and wear resistance, and provide the best protection for the aramid cloth 8 and rubber 9.

[0028] Preferably, the upper structure and the lower structure each include two layers of transverse cord fabrics, each layer of the transverse cord fabrics having a thickness of 1-1.5 mm. During processing, the seams of the transverse cord fabrics are overlapped by 40-60 mm.

[0029] Preferably, the transverse cord fabrics of the upper structure are respectively the first cord fabric 4 and the second cord fabric 5 from top to bottom, the top surface of the first cord fabric 4 is bonded to the upper cover rubber 1, and the top surface and bottom surface of the second cord fabric 5 are respectively bonded to the first cord fabric 4 and the middle layer structure. The transverse cord fabrics of the lower structure are respectively the third cord fabric 6 and the fourth cord fabric 7 from top to bottom, the top surface of the third cord fabric 6 is bonded to the middle layer structure, and the top surface and bottom surface of the fourth cord fabric 7 are respectively bonded to the third cord fabric 6 and the lower cover rubber 3.

[0030] In this embodiment, the bonding strength between the upper covering rubber 1 and the first cord fabric 4, and the bonding strength between the fourth cord fabric 7 and the lower covering rubber 3 are both ≥6N / mm, and the bonding strength between the first cord fabric 4 and the second cord fabric 5, and the bonding strength between the third cord fabric 6 and the fourth cord fabric 7 are both ≥8N / mm.

[0031] Preferably, the first cord fabric 4 and the second cord fabric 5 are arranged crosswise from left to right, the first cord fabric 4 is arranged at an angle of 7.5° along the transverse axis, and the second cord fabric 5 is arranged at an angle of -7.5° along the transverse axis. The third cord fabric 6 and the fourth cord fabric 7 are arranged crosswise from left to right, the third cord fabric 6 is arranged at an angle of 7.5° along the transverse axis, and the fourth cord fabric 7 is arranged at an angle of -7.5° along the transverse axis.

[0032] Preferably, the tensile strength of the aramid cloth 8 is 2500 N / mm, and the thickness is 5-8 mm. The tensile strength of the upper cover rubber 1 and the lower cover rubber 3 are both ≥18 Mpa, and the thickness is both 4-6 mm.

[0033] In this embodiment, the overall width of the conveyor belt is 1000 mm, and the width of the aramid cloth is 150-200 mm.

[0034] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any slight modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A high-extension conveyor belt with small turns. It is characterized in that It comprises a frame, and upper covering rubber and lower covering rubber are respectively provided on two sides of the frame; The skeleton comprises an upper structure, an intermediate structure and a lower structure, wherein the intermediate structure is located between the upper structure and the lower structure, the intermediate structure is arranged along the radial direction of the conveyor belt, and the upper structure and the lower structure are both arranged along the transverse direction of the conveyor belt; The middle layer structure includes aramid cloth and rubber, the aramid cloth is arranged in the middle part, the rubber is arranged on both sides of the aramid cloth, and the rubber is located at the edge of the conveyor belt; The upper structure and the lower structure each include two layers of transverse cord fabrics, and the thickness of each layer of the transverse cord fabrics is 1-1.5 mm; The seams of the transverse cord fabrics are overlapped by 40-60 mm; The transverse cord fabrics of the upper structure are respectively the first cord fabric and the second cord fabric from top to bottom, the top surface of the first cord fabric is bonded to the upper cover adhesive, and the top surface and bottom surface of the second cord fabric are respectively bonded to the first cord fabric and the middle layer structure; The first cord fabric and the second cord fabric are arranged crosswise from side to side, the first cord fabric is arranged at an angle of 7.5° along the transverse axis, and the second cord fabric is arranged at an angle of -7.5° along the transverse axis; The transverse cord fabrics of the lower structure are respectively the third cord fabric and the fourth cord fabric from top to bottom, the top surface of the third cord fabric is bonded to the middle layer structure, and the top surface and bottom surface of the fourth cord fabric are respectively bonded to the third cord fabric and the lower covering adhesive; The third cord fabric and the fourth cord fabric are arranged crosswise on the left and right, the third cord fabric is arranged at an angle of 7.5° along the transverse axis, and the fourth cord fabric is arranged at an angle of -7.5° along the transverse axis.

2. A high-extension conveyor belt capable of small turns as claimed in claim 1, It is characterized in that The aramid cloth has a tensile strength of 2500 N / mm and a thickness of 5-8 mm.

3. A high-extension conveyor belt capable of small turns as claimed in claim 1, It is characterized in that The overall width of the conveyor belt is 1000 mm, and the width of the aramid cloth is 150-200 mm.

4. A high-extension conveyor belt capable of small turns as claimed in claim 1, It is characterized in that The tensile strength of the upper cover rubber and the lower cover rubber are both ≥18Mpa, and the thickness is both 4-6mm.

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