CN2300761Y

CN2300761Y - High-strength V-belt

Info

Publication number: CN2300761Y
Application number: CN 97225554
Authority: CN
Inventors: 赵来柱
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-09-02
Filing date: 1997-09-02
Publication date: 1998-12-16
Anticipated expiration: 2007-09-02

Abstract

The utility model provides a high-strength V-belt, comprising an extension layer, a center layer, a compression layer and a wrapper layer. The utility model is characterized in that a thin steel cable with a copper-plating thin film is arranged in the extension layer, and short thin copper wire are evenly arranged in a core body composed of the extension layer, the center layer and the compression layer. Due to the thin steel cable and the short thin copper wire, the tensile strength of the utility model is 100 times higher than that of the ordinary V-belt, and the abrasion resistance performance and the service life of the utility model can be improved. The utility model has the advantages of simple structure, easy manufacture, stable operation, difficult deformation, etc., which is a good replacement for the existing V-belt.

Description

A kind of high strength vee belt

The utility model relates to a kind of mechanical transmission device, a kind of specifically high strength vee belt.

Existing vee belt is formed by the infantees layer of rubber core and appearance, its cross section is trapezoidal, force-bearing situation during by work can be divided into elongate layer, central core and compression layer, owing to there is not suitable enhancing structural design, it is pulled apart, and brute force is big inadequately, and fall short of working life, in case rupture, with influencing the normal operation of power plant, cause damage to production.

The purpose of this utility model be to design a kind of simple in structure, tensile strength is high, the high strength vee belt of long service life.

The basic comprising of the utility model design proposal is the same with known vee belt, comprise elongate layer, central core, compression layer and infantees layer, it is characterized in that being provided with in the said elongate layer seizing wire of band copper facing film, be provided with the thin copper wire short-term in said elongate layer, central core and the compression layer uniformly.

Owing to be provided with seizing wire, so its tensile strength improves greatly, can bring up to about 20000 kg/cm from 140～220 kg/cm of existing vee belt, promptly approximately improves two orders of magnitude in the utility model.The adding of thin copper wire short-term can also improve the wear-resisting property of vee belt except improving the tensile strength, increases the service life.Even localized cracks is arranged, the vee belt still can be used, and equipment still can run well, and overhauls calmly then, changes, and its working life can more known triangle belt length 3～5 times.Because the distortion of the utility model under pulling force is very little, does not have bounce during transmission, working stability is reliable.The utility model also has the advantage of easy processing, production, can utilize original manufacturing mechanism to produce, except that before moulding, placing seizing wire and thin copper wire short-term, need not change original production technology, the vee belt that produces is identical with original vee belt specifications and models, and interchangeability, versatility are good.

The utility model has following accompanying drawing:

Fig. 1 high strength vee belt structural representation

Below in conjunction with accompanying drawing the utility model is described in further detail.

Fig. 1 is the vee belt structural representation, and the centre is the core body of rubber matrix, and the outside is known infantees layer 4, and core body can be divided into elongate layer 1, mesosphere 2 and compression layer 3.The utility model is provided with the seizing wire 5 of band copper facing film in elongate layer 1 (the core body outside), the radical that wire rope 5 is provided with can be decided according to the model (size) of vee belt, for example can be provided with 3,4,5,6,7,8,9, for the vee belt that large-scale transmission device uses, the radical of wire rope can also increase.Wire rope 5 can axially coil commentaries on classics by a long wire rope continuously along the vee belt, form many wire rope on a cross section, can avoid too much joint like this, to improve intensity, to simplify production technology.According to different purposes, the steel of wire rope can be selected 45#, 60#～70# steel for use, with the 65# steel for well.Can select odd number thighs such as 5 strands, 7 strands, 9 strands～27 strands for use according to the finer wire number of share of stock of the every wire rope of model of vee belt.The copper facing film on wire rope surface (per share finer wire surface) can make wire rope and rubber combine securely.(particularly in compression layer 3) is provided with thin copper wire short-term 6 (thin copper wire head) in the rubber core of vee belt, and this is equivalent to add many metal ribs to the vee belt, improved the tension and the wear-resisting property of vee belt widely, prolonged working life.The distribution of copper wire head is wanted evenly, and is even with the performance that guarantees the vee belt, and this can be before thermoplastic shaping evenly mixes rubber mass with the copper wire head and gets final product, and the adding proportion of copper wire head 6 can be chosen as 5～20% (with the weight ratio of rubber).

As specific embodiment, the diameter of seizing wire 5 is chosen as 0.3～3.6 millimeter, for example can select 0.3,0.5,0.7,0.9,1.2,2.0,2.8,3.6 millimeter.The finer wire diameter of forming wire rope 5 is chosen as 0.1～0.4 millimeter, for example 0.1,0.15,0.2,0.3,0.4 millimeter.The diameter of thin copper wire short-term (copper wire head) 6 is chosen as 0.15～0.4 millimeter, and for example 0.15,0.2,0.3,0.4 millimeter, its length is 5～15 millimeters, for example is chosen as 5,6,7,10,12,15 millimeters, also can be mixed by the copper wire head of different length and form.

Coefficient of strain of the present utility model is little, and stretching resistance is very strong, and is not yielding, can be widely used in the power transmission of automobile and various industry, agricultural production.Its specification, model can be by the standard production of known vee belt, as O, A, B ... the F type; Its trapezoidal angle Φ=40 °, top width a can be decided to be 10,13 by known standard, the 17...50 millimeter, and its height h also can correspondingly be decided to be 6.0,8.0 by known standard, the 10.5...30 millimeter.To the vee belt of 3 1.2 millimeters wire rope, 7% thin copper wire short-term is set, 0.4 millimeter of finer wire diameter, three strands are combined into steel cable, 0.88 square millimeter of total basal area, 0.2 millimeter of thin copper wire short-term diameter, 10 millimeters of length, after tested, the tensile strength of vee belt can reach 420～600 kilograms/square millimeter, is the good substitute products of known vee belt.

Claims

1. high strength vee belt, comprise elongate layer (1), central core (2), compression layer (3) and infantees layer (4), it is characterized in that being provided with in the said elongate layer (1) seizing wire (5) of band copper facing film, be provided with thin copper wire short-term (6) equably in said elongate layer (1), central core (2) and the compression layer (3).

2. vee belt according to claim 1 is characterized in that the seizing wire (5) of said band copper facing film is made up of odd number thigh finer wire.

3. vee belt according to claim 1 and 2, the diameter that it is characterized in that the wire rope (5) of said band copper facing film is 0.3～3.6 millimeter, the diameter of finer wire is 0.1～0.4 millimeter, and the diameter of said thin copper wire short-term (6) is 0.15～0.4 millimeter, and its length is 5～15 millimeters.