Mechanical engineering of milling roller

The supporting wheel is one of the four rounds of tracked construction machinery chassis. Its main role is to support the weight of the excavator and bulldozer, so that the track can move along the wheel. This paper is about the milling roller.

The main structure of the support wheel:

The components of the wheel, the axle, the shaft sleeve, the seal ring, the end cover and other related components

Wheel body:

The home support wheel of engineering machinery adopts the welding equipment of imported fully automatic manipulator in Japan, which has good permeability and high stability.

The boron material and overall heat treatment process, improve the wear resistance of products

Wheel axle：

The production process of modulation and surface heat treatment ensures the strength and performance of the product. 100% of the NC machining equipment ensures the precision and quality stability of the product size.

Axle sleeve：

Thickened surface coating thickness (copper) to improve wear resistance

Sealing element：

Special cast iron floating seal ring plus fluoro rubber ring, suitable for ultra high and ultra-low temperature working environment

Wheel cover:

High quality and precision cast steel

Analysis of the drawback of the product of the support wheel

1. a lot of steel marks have not reached the standard, and the heat treatment process is not very good.

2., the market is vicious competition. Several important structures of products are Jerry built, such as wheel diameter reduction, support shaft fining and copper sleeve length shortening. The reduction of wheel diameter reduces the speed of the wheel line and the more friction the axle sleeve bears.

The 3. axis is the same as the same, the same impact will not be enough, the axis deformation or break.

4., the copper sleeve plays the role of friction. The copper layer must not be easy to fall off after rolling. After reaching normal 0.35mm level, the copper layer will reach the standard, and the significance of reducing the length of the copper sleeve length support wheel will also lose its function. Reducing the length is equivalent to reducing the stress area.

A heavy wheel is easy to problem

A, wheel wear. The reason for this is that the steel is not qualified or the hardness of the material is low and the wear resistance is insufficient.

B, oil leakage. The supporting axle is always rotated through the axle sleeve, and the inner part of the wheel must be oiled to lubricate. But if the sealing ring is not good, it will cause oil leakage easily, so that the shaft and bushing are easy to wear under the condition of no lubrication, resulting in the product can not be used.

There are several reasons for the leakage of oil.

1 unqualified floating oil seal

2. product axle bushing is not round

3. shafts are not gloss enough

4. gear oil is not up to standard

5. the machining dimension tolerance and so on will cause the oil leakage of the support wheel.

Mechanical engineering of milling roller

A milling machine machinery engineering supply wheel, the use of high-quality materials, fine processing technology, improve service life, prolong the service life, which effectively prevent the above problems.

Wirtgen W2000-C small roller milling machine

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