Compound elevator traction belt

A technology of elevator traction and traction belt, which is applied in the field of elevator traction belt and composite elevator traction belt, and can solve the problems of complicated preparation process of traction belt, reduction of bending radius of traction belt, reduction of diameter of traction shaft, etc. , to achieve the effect of light weight, saving building space and low maintenance cost

Pending Publication Date: 2019-01-04
AA IND BELTING (SHANGHAI) CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Chinese patent CN104528498A discloses a traction belt of composite material, which is composed of a multi-layer inner carrier and a wear-resistant elastic body coated on the outside of the multi-layer inner carrier. The inner carrier is unidirectionally continuous along the length direction of the traction belt The sheet shape; the internal carrier includes a matrix, and there are many non-metallic untwisted continuous monofilaments inside the matrix, and there is no contact between the multiple untwisted continuous fiber monofilaments. The resin material and the wear-resistant elastic body are thermoplastic polyurethane or rubber elastic body. The invention uses multi-layer sheet composite materials as the internal carrier of the traction belt to reduce the bending radius of the traction belt under the premise of ensuring good bearing capacity. Increase flexibility, but the preparation process of the traction belt in this invention is complicated. Compared with the present invention, the diameter of the turning wheel is still larger, which is not conducive to the reduction of the diameter of the traction shaft

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Embodiment 1

[0032] A composite elevator traction belt, the traction belt has high flexibility, such as figure 1 and figure 2 As shown, it includes a high-strength aramid rope 1 in the middle and a surface thermoplastic polyurethane layer 2 covering the outside of the aramid rope. The surface of the thermoplastic polyurethane layer 2 is provided with a wedge-shaped structure parallel to the longitudinal direction of the traction belt, and the wedge-shaped structure is provided with a tooth-shaped structure; the back of the traction belt is a matte structure.

[0033] Among them, the aramid rope is made by twisting several strands of aramid fiber and carbon fiber; the aramid fiber is a long fiber, and the length of a single fiber is greater than 3000m; the tensile strength of the aramid rope is 6KN / root, and the elongation at break is was 2.4%. The carbon fiber is a certain amount of conductive continuous carbon fiber; the thermoplastic polyurethane layer has a hardness of 85A, the total...

Embodiment 2

[0037] A composite elevator traction belt, which has high flexibility, includes a middle high-strength aramid fiber rope 1 and a surface thermoplastic polyurethane layer 2 wrapped outside the aramid fiber rope. The surface of the thermoplastic polyurethane layer 2 is provided with a wedge-shaped structure parallel to the longitudinal direction of the traction belt, and the wedge-shaped structure is provided with a tooth-shaped structure; the back of the traction belt is a matte structure.

[0038] Among them, the aramid rope is made by twisting several strands of aramid fiber and carbon fiber; the aramid fiber is a long fiber, and the length of a single fiber is greater than 3000m; the tensile strength of the aramid rope is 5.5KN / root, and the elongation at break The rate is 2%. The carbon fiber is a certain amount of conductive continuous carbon fiber; the thermoplastic polyurethane layer has a hardness of 85A, the total thickness of the traction belt is 5mm, and the width of...

Embodiment 3

[0041] A composite elevator traction belt, which has high flexibility, includes a middle high-strength aramid fiber rope 1 and a surface thermoplastic polyurethane layer 2 wrapped outside the aramid fiber rope. The surface of the thermoplastic polyurethane layer 2 is provided with a wedge-shaped structure parallel to the longitudinal direction of the traction belt, and the wedge-shaped structure is provided with a tooth-shaped structure; the back of the traction belt is a matte structure.

[0042] Among them, the aramid rope is made by twisting several strands of aramid fiber and carbon fiber; the aramid fiber is a long fiber, and the length of a single fiber is greater than 3000m; the tensile strength of the aramid rope is 7KN / root, and the elongation at break is 1.5%. The carbon fiber is a certain amount of conductive continuous carbon fiber; the thermoplastic polyurethane layer has a hardness of 85A, the total thickness of the traction belt is 4mm, and the width of the trac...

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Abstract

The invention relates to a compound elevator traction belt which comprises a middle bearing element and a coating layer coating the outer side of the bearing element. A wedge structure is arranged vertically along the traction belt is arranged on the surface of the coating layer, and a broken tooth structure is arranged on the wedge structure; the bearing element is an aramid fiber rope; the coating layer is a thermoplastic polyurethane layer; and the back face of the traction belt is a matte structure. Compared with the prior art, a traction steel wire rope is replaced by the aramid fiber rope which is low in ductility and high in modulus, so that a small diameter traction shaft can be permitted. The compound elevator traction belt has the advantages of being good in flexibility resistance, long in service life, low in noise, light in weight, energy-saving, lubrication-free and the like.

Description

technical field [0001] The invention relates to an elevator traction belt, in particular to a composite elevator traction belt, which belongs to the technical field of transmission belt manufacture. Background technique [0002] At present, the development trend of the construction industry is energy saving, lightweight, miniaturization, and high speed. As an indispensable part of construction, elevators have higher and more advanced requirements for their structure and architectural layout. In particular, low noise, light weight, and small machine room design concepts have been developed on the traction medium, and the traditional wire rope large machine room design has gradually been eliminated. [0003] Chinese patent CN104528498A discloses a traction belt of composite material, which is composed of a multi-layer inner carrier and a wear-resistant elastic body coated on the outside of the multi-layer inner carrier. The inner carrier is unidirectionally continuous along th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66B7/06
CPCB66B7/062
Inventor 陈新新
Owner AA IND BELTING (SHANGHAI) CO LTD
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