Reasons for Softening of V-belt

When using the rubber belt, attention should be paid to adjusting the tightness of the belt, and the triangular belt should be properly maintained to avoid problems during operation. Now let's mainly talk about the softening of V-belt belts, analyze the reasons, and help everyone avoid these problems in future use.

1、 Belt flipping

Cause analysis: The belt is severely worn, and the belt and pulley can be replaced; If the pulley is not up or down correctly, it can be re aligned.

2、 Fan belt vibration

Cause analysis: Severe belt damage or belt breakage. Can be replaced with a new belt; If the belt tension is too tight or too loose, adjust the center distance of the pulley to fit the belt tension.

3、 Triangle belt softening

Cause analysis: contaminated by lubricating oil, grease, and chemicals. Protect the transmission from pollution sources. Before installing a new belt, clean the pulley groove with gasoline or alcohol.

In order to avoid the above problems during the use of the rubber v belt, everyone should pay attention to the tension and wear of the triangular belt, and replace it with a new one when necessary.

What is the difference between a joint belt and a triangular belt?

1、 The number of triangular belts varies. As the name suggests, an ordinary triangular belt is usually one, while the number of joint belts is at least two.

2、 The applicable agricultural machinery is different: narrow V-belts in the combined belt, such as models 9j, 15j, 20j, 25j, etc. These types of belts are mainly suitable for harvesting machinery.

3、 The load they bear varies. When the combined belt is used for transmission, it can eliminate the drawbacks of vibration, tapping, and flipping during the operation of a single belt, and make each belt evenly stressed. At the same time, compared to ordinary triangular belts, it can withstand a greater load.

The triangle has two types of special belt core structure and rope core structure, which are respectively composed of four parts: wrapped fabric, top glue, tensile body, and bottom glue. The rubber belt with rope core structure is easy to manufacture and has average tensile strength, which is widely used. The triangular belt with special belt core structure has good toughness and strength, and is suitable for situations with good rotational speed.

The difference between the A-type and B-type triangular belts is:

1、 The recommended number of pulley groove angles varies across different diameter ranges. The A-type pulley has a diameter range of 34 degrees between 71mm and 100mm, and 36 degrees between 100mm and 125mm38 degrees at 125mm; The B-type pulley is 34 degrees when the pulley diameter range is 125mm~160mm; 36 degrees for 160mm~200mm, and 38 degrees for 200mm.

2、 The performance of the two is different. The B type has a heavier load than the A type, and the B type belt is wider and has better load-bearing capacity than the A type.

3、 The cross-sectional dimensions of the triangular belt are different. The cross-sectional dimensions of the A-type triangular belt are: the front end width is 13mm and the thickness is 8mm; The cross-sectional dimensions of the B-type rubber v belt are: the front end width is 17MM and the thickness is 10.5MM.

Possible issues when replacing triangular belts

1、 Let's first understand the metric and English system replacement. We all know that the dimensions of triangular belts can be divided into metric and English systems. Therefore, we should first judge whether the two types of triangular belts have substitutability based on the metric and English system dimensions.

2、 The replacement between a joint triangular belt and a single triangular belt, which has high stability characteristics and can eliminate the possibility of the triangular belt flipping on the wheel, is mostly used on equipment installed vertically on the shaft. The first two principles of substitutability also apply between the joint triangular belts.

3、 The above two substitutability principles apply equally to the replacement of toothed rubber belts. In addition, unless otherwise specified, the non toothed triangular belt model and the corresponding toothed triangular belt can be replaced with each other.

4、 It is a replacement between different types of triangular belts, and whether two different types of triangular belts can be replaced with each other depends on their cross-sectional dimensions. If the cross-sectional dimensions of two types of rubber belts are the same, then these two types of triangular belts can basically be replaced with each other.