The Causes of the Joint Banded Belt Fault

The outer protective fabric used in the joint triangular belt has always been mainly cotton canvas, and it still maintains this state to this day. For some of the those who require better bending performance, they also start to use cotton blended canvas, or even Total synthesis fiber canvas. Outsourcing protective fabrics will continue to maintain this trend in the future. In order to protect the teeth and the core wire, the toothed belt mainly uses high quality Synthetic fiber, which is usually made of nylon canvas. In the future, it will be further thinned. During operation, the pulley may experience deformation, cracking, bearing wear or key looseness, and peripheral hole wear. Relevant components should be repaired or replaced in a timely manner. After the end of each season's operation, when maintaining the harvester, it should be removed and hung in a ventilated and dry place, or the tensioning wheel should be loosened to keep the belt in a loose state.

The joint banded belt is a rubber belt type component used in mechanical equipment, such as engines, to transmit mechanical energy. Almost all mechanical equipment is inseparable from its transmission. To ensure its performance, it is manufactured in many layers.

It is a type of belt core that can be used as a conveyor belt in conveyor equipment. The performance of rubber belts is generally relatively tough, and they can also be used in places that require good rotational speeds. During use, it is inevitable to encounter rubber belt fractures. Below is an introduction to the causes and inspection methods of the fractures.

Reason for fracture:

1. Damage to the structure of the belt core after prolonged use.

2. The anti extrusion ability of the belt is poor.

3. The fabric quality of the belt is not good enough.

4. The length of the two belts is inconsistent and there is interference with each other during operation.

Inspection method:

1. Artificial cotton and artificial silk fabrics have the characteristics of soft feel, breathable and comfortable wearing, and bright dyeing.

2. Artificial fiber fabrics have excellent moisture absorption properties, which are better in chemical fibers. But its wet strength is very low, only about 50% of its dry strength, and the fabric has a high shrinkage rate. Therefore, it is better to shrink it in advance before cutting.

3. Ordinary viscose fabrics have the characteristics of good drape, poor stiffness, resilience, and wrinkle resistance, so their clothing has poor shape retention and is prone to wrinkles.

4. Viscose fiber fabrics have good properties, are not afraid of sunlight, and are not afraid of other products.

The application of joint banded belts in agricultural machinery is also relatively common. The standardized rubber belt has a trapezoidal cross-section and no joints throughout the entire circle. It is divided into 7 types: O type, A type, B type, C type, D type, E type, and F type. The cross-sectional area of the rubber belt gradually increases from O type to F type. The selection of the V-belt model is determined by the power transmitted and the speed of the tape, which involves a lot of knowledge.

1. Prevention of slotting: When installing the pulley, the middle of the two upper pulleys needs to be aligned, otherwise it will cause the rubber belt to work unilaterally, wear and tear tight, and reduce the service life of the rubber belt.

2. Suitable tightness: The tightness of the rubber belt needs to be regularly checked and adjusted to meet the requirements. If the triangular belt is too loose, it is easy to slip, increase the wear of the triangular belt, and even cannot transmit power; If it is too tight, it will cause the triangular belt to stretch and deform, which is easy to damage. It can also cause excessive force on the engine main bearings and clutch bearings, accelerating the wear of the triangular belt.

Accurate inspection method: Apply about 2 kilograms of vertical pressure to the middle of each tape, with a sinking amount of 20-30 millimeters. If not appropriate, make timely adjustments.

3. Select the correct model: The selected model should be compatible with the selected triangular belt, otherwise the rubber belt may have abnormal situations in the pulley groove. When replacing the triangular belt, bring the old belt to the agricultural machinery department for purchase to avoid purchasing the wrong model

4. Accurate installation: Before installation, if the distance between the two shafts is an adjustable structure, the middle distance should be shortened first, and then the middle distance should be adjusted according to the requirements after the tape is installed; If the distance between the two shafts is not adjustable, a triangular belt can be inserted into the wheel groove first, and then the other pulley can be rotated to install a set of triangular belts using the same method. During installation, it is prohibited to use tools to forcefully pry or pull on the triangular tape to prevent it from extending, loosening, or tightening

5. Daily maintenance: According to the technical requirements of the user manual, try to avoid sudden starting and braking as much as possible; Frequent overload operations should also be prevented; During long-term shutdown, the triangular belt should be removed and stored separately.

6. Do not mix old and new: It is necessary to prepare 2-3 or more rubber belts, and replace them when necessary. The specified model of v belts should be selected, and each group of v belts should have the same tightness. It is not allowed to mix new and old v belts or reduce the number of pieces. Otherwise, the force on the new and old triangular belts will be uneven, and even the old triangular belts will not work, affecting power transmission and shortening the lifespan of the triangular belts.

7. Strictly prevent contamination: strictly prevent the v belt from oil stain and muddy water during use, and avoid contact with Corrosive substance such as acid and alkali, so as to prevent slipping and early damage caused by corrosion of the v belt.