Use and Maintenance of Automobile Multi-groove Belt

The engine is the central part of the car, of course the enginemulti-groove beltThe maintenance is also very important. I drive on the road every day. Over time, the engine belt may wear out or age. Therefore, car owners usually start to check the belt after a certain period of time to avoid unnecessary failures. Let's learn about the use and maintenance of the car's multi-groove belt!

Installation and maintenance of multi-groove belt

At present, the tensioning methods of automobile multi-groove belts are divided into two types, fixed tension and automatic tension.

1. When the tension is fixed:

Under proper belt tension, the normal failure mode is mostly cracking, multi-groove belt tension is too low, easy to slip, belt wear is serious, transmission does not work, the failure mode of tension is mostly the separation of cord and rubber, fixed tension: it is recommended to install tension 125N-150N/wedge for the first time, and tension 100N-120N/wedge again.

2. The usual installation method of multi-groove belt:

During the installation of the multi-groove belt, do not use a screwdriver or other hard things to pry the belt onto the pulley. Please loosen the tension pulley and put in the belt, relax the tension, and tighten the belt to reach the appropriate tension.

Effect of installing the wrong groove on the belt:

1. Due to the small space at the front end of the car engine, the line of sight is not clear. When installing the belt, it is easy to install it on the stopper of the pulley by mistake. In this case, the belt is easy to tear. Due to the wrong installation of the test belt, the failure time of the belt will be shortened to less than 1% of the normal life.

2. After the multi-groove belt is installed, it is recommended to touch it once along the belt to avoid deviation of the belt installation position.

Automobile maintenance defines the wear and aging prevention of automobile engine belts, defining that the front end of the machine has a rare root belt, and each multi-groove belt bears the result. The proposal machine drives the operation of various auxiliary machines through belt drive, such as air conditioner retractor, power steering oil pump, alternator, etc. Assuming that the multi-groove belt breaks and slips, the functions of related auxiliary machines may be damaged and the functions may decrease, which will affect the normal operation of the car.

The introspection method of the multi-groove belt is simple. First of all, reflect on the tension of the belt. At this time, you can press the multi-groove belt between the two pulleys with your thumb. The pressing force is about 10kg. Assuming that the pressing force of the transmission belt is about 10mm, it is considered that the tension knock of the transmission belt is appropriate. Assuming that the amount of pressure is too large, the belt tension is considered insufficient. Assuming that almost no depression occurs on the multi-groove belt, the tension of the belt is considered to be excessive. When the tension is insufficient, the belt will slip at will. If the tension is too large, it will damage the bearings of various auxiliary machines at will. To this end, it is necessary to loosen the relevant adjustment nut or bolt to adjust the tension of the belt to the shape.

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Cut three samples with a length of 250 mm from one PJ V-ribbed belt, and mark a marking line with a spacing of 100mm at the middle position of the PJ V-ribbed belt. When more than three samples cannot be taken from one PJ V-ribbed belt, samples can be cut from the same batch of PJ V-ribbed belt, but must be indicated in the report. 7.4.2 High temperature resistance test method
Place the sample at 100 ℃ ± 2 ℃ for 96 h ± 1 h and then take it out. After standing at laboratory temperature for more than 2h, bend it along a cylinder with a diameter of 20 mm at a contact angle of at least 90 °.