A high groove conveyor belt

Abstract

The present application belongs to the field of conveyor belts, and specifically relates to a high-grooving conveyor belt. A high-grooving conveyor belt includes a skeleton layer, an upper covering rubber layer, a lower covering rubber layer, and an edge rubber. The skeleton layer includes several layers of canvas, and the canvas is made of polyester. The two ends of the weft of the canvas are respectively fixedly connected to spiral metal wires parallel to the warp of the canvas, and the spiral metal wires are buried in the edge rubber. In the present application, the two ends of the weft of the canvas are connected with spiral metal wires, and the spiral metal wires are buried in the edge rubber. The setting of the spiral metal wires not only effectively increases the connection strength between the edge rubber and the skeleton layer, the upper covering rubber layer, and the lower covering rubber layer, but also the setting of the metal wires can effectively reduce static electricity. Secondly, the present application uses polyester material with less flexibility than nylon as the skeleton layer, and increases the density of polyester warp and weft, which in turn increases the grooving property of the conveyor belt, achieving unexpected results.

Description

Technical Field

[0001] The present application belongs to the field of conveyor belts, and specifically relates to a high-grooved conveyor belt. Background Art

[0002] The conveyor belt is one of the main components of the belt conveyor, and its cost accounts for about 60% of the total cost of the machine. Compared with other forms of transportation, the conveyor belt transportation method has the advantages of safe operation, easy use, and continuous transportation. Therefore, it is widely used in cement, coking, metallurgy, chemical industry, steel and other industries.

[0003] The conveyor belt is a composite material, mainly composed of a flexible reinforced skeleton and rubber or plastic. The rubber used can be divided into skeleton material bonding rubber and skeleton layer protective rubber. The skeleton layer is the main structure of the conveyor belt, which characterizes the basic mechanical properties of the conveyor belt. Its function is to bear all the loads during operation. The bonding rubber is used to connect the skeleton material to give it the corresponding mechanical integrity and consistency. The protective rubber mainly covers the surface of the skeleton layer to protect the skeleton layer from wear and corrosion.

[0004] As one of the belt conveyors, the trough roller conveyor can prevent the goods from falling off during transportation, so it is widely used. However, it also often has high requirements for the troughing of the conveyor belt. In order to meet the troughing requirements, the existing conveyor belt adopts the skeleton layer of NN-66 material to improve the lateral flexibility of the conveyor belt. However, the NN-66 material is expensive, which makes the overall manufacturing cost of the conveyor belt too high. Secondly, the conveyor belt is very easy to generate static electricity due to friction in the process of conveying goods, especially when transporting flammable goods, it is easy to cause fire. Therefore, there is an urgent need for an anti-static high-trough conveyor belt with good performance and low manufacturing cost. Summary of the invention

[0005] In order to solve the above problems, the present application provides a high-grooving conveyor belt.

[0006] A high-grooved conveyor belt comprises a skeleton layer, an upper covering rubber layer, a lower covering rubber layer and edge rubber, wherein the skeleton layer comprises several layers of canvas, the canvas is made of polyester dacron, the warp density of the canvas is 185-195 strands / 10cm, and the weft density of the canvas is 80-90 strands / 10cm.

[0007] Furthermore, both ends of the weft of the canvas are respectively fixedly connected with spiral metal wires parallel to the warp of the canvas, and the spiral metal wires are buried in the edge glue.

[0008] Furthermore, the spiral metal wire is a copper wire.

[0009] Furthermore, a polyester traction rope is inserted into the spiral of the spiral metal wire, and reserved weft thread ends are provided at both lateral ends of the canvas, and the reserved weft thread ends are fixed on the polyester traction rope.

[0010] Furthermore, the upper surface of the upper cover rubber layer and the lower surface of the lower cover rubber layer are provided with V-shaped protrusions.

[0011] Furthermore, the warp density of the canvas is 185-195 threads / 10cm, and the weft density of the canvas is 80-90 threads / 10cm.

[0012] Furthermore, the number of canvas layers of the skeleton layer is 4-6.

[0013] Furthermore, the thickness of each layer of the canvas is 0.9 mm.

[0014] Furthermore, the thickness of the single-sided adhesive tape on each canvas layer is 0.4 mm, and the thickness of the calendered adhesive tape between adjacent canvas layers is 0.8 mm.

[0015] Furthermore, the thickness of the upper cover rubber layer is 5 mm, and the thickness of the lower cover rubber layer is 3 mm.

[0016] Furthermore, the vulcanization temperature of the conveyor belt is 145° C., and the vulcanization time is 35 minutes.

[0017] The beneficial effects of this application are:

[0018] In the present application, both ends of the weft of the canvas are connected with spiral metal wires, and the spiral metal wires are buried in the edge glue. The setting of the spiral metal wires not only effectively increases the connection strength between the edge glue and the skeleton layer, the upper covering rubber layer and the lower covering rubber layer, but also the setting of the metal wires can effectively reduce static electricity. Secondly, the present application adopts polyester material with less flexibility than nylon as the skeleton layer, and increases the density of polyester warp and weft, which in turn increases the troughing property of the conveyor belt and achieves unexpected effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of this application

[0020] 1-upper covering rubber layer, 2-skeleton layer, 3-lower covering rubber layer, 4-edge rubber, 5-spiral metal wire, 6-V-shaped protrusion. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0023] Reference Figure 1 A high-grooved conveyor belt comprises a skeleton layer 2, an upper covering rubber layer 1, a lower covering rubber layer 3 and an edge rubber 4, wherein the skeleton layer 2 comprises 4 layers of canvas, wherein the canvas is made of polyester, and both ends of the weft of each layer of the canvas are respectively fixedly connected with spiral metal wires 5 parallel to the warp of the canvas, wherein the spiral metal wires 5 are made of copper wires with a diameter of 2 mm, and the spiral metal wires 5 located on the same side of the skeleton layer 2 are connected in parallel through copper wires, and a plurality of copper wires are respectively led out from the uppermost spiral metal wire 5 and connected with the corrugated copper wire half-buried in the upper surface of the edge rubber, and a polyester traction rope is also passed through the spiral of the spiral metal wire 5, and reserved thread ends of the weft are arranged at the lateral ends of the canvas, and the weft The reserved thread ends are fixed on the polyester traction rope, and the spiral metal wire 5 and the polyester traction rope are buried together in the edge glue 4. The thickness of each layer of canvas is 0.9mm, the canvas is a 40-count canvas, the warp density of the canvas is 190 pieces / 10cm, and the weft density of the canvas is 86 pieces / 10cm. The adjacent canvas layers are fixed together by adhesive rubber, so that the skeleton layer 2 has mechanical integrity and consistency, ensuring that the conveyor belt achieves the required mechanical properties to withstand the load during work. Specifically, the single-sided adhesive thickness of each layer of canvas is 0.4mm, and the four layers of canvas are bonded together by calendering, and the total thickness of the calendered tape between adjacent canvas layers is 0.8mm;

[0024] The upper and lower ends of the skeleton layer 2 are respectively provided with an upper covering rubber layer 1 and a lower covering rubber layer 3 for protection, and are fixed to the skeleton layer 2 by calendering. Specifically, the thickness of the upper covering rubber layer 1 is 5 mm, and the thickness of the lower covering rubber layer 3 is 3 mm. The upper surface of the upper covering rubber layer 1 and the lower surface of the lower covering rubber layer 3 are provided with V-shaped protrusions. The overall vulcanization temperature of the conveyor belt is maintained at 145°C, and the specific vulcanization time is 35 minutes.

[0025] In this embodiment, the number of canvas layers of the skeleton layer 2 is 4, and the thickness of the calendered tape between adjacent canvas layers is 0.8 mm. In other embodiments, the appropriate number of canvas layers and the thickness of the calendered tape can be selected according to the specific grooving requirements and the mechanical properties requirements of the conveyor belt.

[0026] The grooving degree of a conveyor belt is generally expressed as F / L, where F is the vertical deflection of the sample corrected according to the thickness of the belt, and L is the length of the sample when it is laid flat, i.e., the installation width of the conveyor belt. Both units are in millimeters. Taking the EP200-780 conveyor belt of the present application as an example, its conventional standard is to use polyester canvas with a warp density of 122 strands / 10cm and a weft density of 60 strands / 10cm, but its actual grooving degree is only 0.15 after testing, and as the warp and weft densities increase, its grooving degree gradually decreases. The warp and weft densities of the canvas in the present application are 190 strands / 10cm and 86 strands / 10cm, respectively, but the density of the conveyor belt in the present application is tested to be 0.26, and increasing or decreasing the density of the warp and weft on this basis cannot meet the grooving degree requirement of 0.26. Therefore, the technical effect of the present application is unexpected.

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high trough conveyor belt, characterized in that: It includes a skeleton layer, an upper covering rubber layer, a lower covering rubber layer and an edge rubber, wherein the skeleton layer includes several layers of canvas, the canvas is made of polyester, the warp density of the canvas is 185-195 strands / 10cm, and the weft density of the canvas is 80-90 strands / 10cm; Both ends of the weft of each layer of canvas are respectively fixedly connected with spiral metal wires parallel to the warp of the canvas, and the spiral metal wires are buried in the edge glue; The spiral metal wires on the same side of the skeleton layer are connected in parallel through copper wires, and a number of copper wires are led out from the uppermost spiral metal wire and connected to the corrugated copper wire half-buried in the upper surface of the edge glue; A polyester traction rope is inserted into the spiral of the spiral metal wire, and reserved weft thread ends are arranged at both lateral ends of the canvas, and the reserved weft thread ends are fixed on the polyester traction rope.

2. A high groove conveyor belt according to claim 1, characterized in that: The spiral metal wire is a copper wire.

3. A high groove conveyor belt according to claim 1, characterized in that: The upper surface of the upper cover rubber layer and the lower surface of the lower cover rubber layer are provided with V-shaped protrusions.

4. A high groove conveyor belt according to claim 1, characterized in that: The number of canvas layers of the skeleton layer is 4-6.

5. A high groove conveyor belt according to claim 3, characterized in that: The thickness of each layer of the canvas is 0.9 mm.

6. A high groove conveyor belt according to claim 4, characterized in that: The thickness of the single-sided adhesive tape on each layer of canvas is 0.4mm, and the thickness of the calendered tape between adjacent canvas layers is 0.8mm.

7. A high groove conveyor belt according to claim 1, characterized in that: The thickness of the upper cover rubber layer is 5 mm, and the thickness of the lower cover rubber layer is 3 mm.

8. A high groove conveyor belt according to claim 1, characterized in that: The vulcanization temperature of the conveyor belt is 145°C and the vulcanization time is 35 minutes.

Images