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V belt capable of reducing dynamic heat build-up

A heat-generating and dynamic technology, applied in the field of rubber V-belt production, can solve problems such as shortening and decreasing service life, and achieve the effect of increasing service life, reducing dynamic heat generation and reducing friction.

Inactive Publication Date: 2017-09-01
浙江保尔力橡塑股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Then the belt is constantly bent and squeezed during high-speed operation and under the action of friction, the V-belt heats up. The higher the speed, the greater the load, the higher the temperature rise, so that the life of the V-belt drops sharply, such as the V-belt of a car during work. Every time the body temperature rises by 10°C, the service life will be shortened by about 30%-50%.

Method used

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  • V belt capable of reducing dynamic heat build-up
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  • V belt capable of reducing dynamic heat build-up

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Embodiment 1: the V-belt that can reduce dynamic heat generation, each component is composed as follows:

[0014]

[0015] The order in which the components are added to the internal mixer is as follows: Neoprene, butadiene rubber, short fiber and fiber rubber powder are added first, the initial temperature of the internal mixer is controlled at 80°C, and the continuous refining time is 3 minutes. The second step Add magnesium oxide, stearic acid, dibenzothiazole disulfide, carbon black and aromatic oil, the temperature of the internal mixer is controlled at 110°C, and the continuous refining time is 2 minutes. In the third step, zinc oxide is added, and the internal mixer The temperature is controlled at 115°C, and the zinc oxide is added 30 seconds before the internal mixer starts debinding. In fact, the refining time of the third step is only 30 seconds.

[0016] The obtained V-belt is tested, and its breaking strength (longitudinal) is 10.86Mpa, and the breaking ...

Embodiment 2

[0020] V-belts that can reduce dynamic heat generation, the composition of each component is as follows:

[0021]

[0022] The order in which the components are added to the internal mixer is as follows: Neoprene, butadiene rubber, short fiber and fiber rubber powder are added first, the initial temperature of the internal mixer is controlled at 80°C, and the continuous refining time is 4 minutes. The second step Add magnesium oxide, stearic acid, dibenzothiazole disulfide, carbon black and aromatic oil, the temperature of the internal mixer is controlled at 110°C, and the continuous refining time is 2.5 minutes. In the third step, zinc oxide is added. The temperature is controlled at 115°C, and the zinc oxide is added 30 seconds before the internal mixer starts debinding. In fact, the refining time of the third step is only 30 seconds.

[0023] The obtained V-belt is tested, and its breaking strength (longitudinal) is 10.6Mpa, and the breaking elongation (longitudinal) is ...

Embodiment 3

[0027] In order to illustrate the effect, a comparative experiment is now carried out on two V-belts with and without fiber rubber powder. The composition and test data of the two components are as follows:

[0028]

[0029]

[0030] Use the No. 1 V-belt and the No. 2 V-belt to produce two identical motorcycle V-belts respectively. The model is 669×18×30, that is, the length of the belt pitch is 669mm, the width is 18mm, and the wedge angle is 30° to make two wheels. For the comparative test of transmission heat generation, the size of the driving wheel and the driven wheel is in accordance with GB / T18860-2015, the speed of the driving wheel is 5500 rpm, the load of the driven wheel is 6kw, and the tension is 720N, which is constant. At an ambient temperature of 25°C, conduct a belt temperature test after running for 1 hour, and use an infrared thermometer to measure the surface temperature of the V-belt. Test conclusion: the temperature rise of No. 1 V-belt is 145°C, an...

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Abstract

The invention particularly relates to a V belt capable of reducing dynamic heat build-up and belongs to the technical field of rubber V belt production. According to a traditional V belt primer, viscose powder is added to the components, such as a chloroprene rubber adhesive, cis-butadiene rubber, magnesium oxide, stearic acid and carbon black, the viscose powder is an inert filler with relatively coarse particles, so that the distance between molecular chains can be increased in the rubber molecular chains, friction between the molecular chains is reduced and internal stress dispersion is facilitated, thereby reducing dynamic heat build-up and prolonging the service life of a product.

Description

technical field [0001] The invention belongs to the technical field of rubber V-belt production, in particular to a V-belt capable of reducing dynamic heat generation. Background technique [0002] The rubber V-belt is an important spare part in modern industrial production equipment. The V-belt belongs to the friction transmission, and it relies on the friction between the belt and the pulley to transmit motion and power. In order to avoid belt slipping during transmission, a certain tension must be applied to the belt during transmission to generate positive pressure friction for transmission. Then the belt is constantly bent and squeezed during high-speed operation and under the action of friction, the V-belt heats up. The higher the speed, the greater the load, the higher the temperature rise, so that the life of the V-belt drops sharply, such as the V-belt of a car during work. Every time the body temperature rises by 10°C, the service life will be shortened by about 3...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L11/00C08L9/00C08L77/00C08L91/00C08L101/00C08K13/02C08K3/22C08K5/09C08K3/04C08K5/12
CPCC08K2003/222C08K2003/2296C08L11/00C08L2205/035C08L2205/16C08L9/00C08L77/00C08L91/00C08L101/00C08K13/02C08K3/22C08K5/09C08K3/04C08K5/12
Inventor 庞长志齐洋超鲍人平
Owner 浙江保尔力橡塑股份有限公司
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