Specific Problems Faced in the Design of Hammer Crusher Machine

Specific Problems Faced in the Design of Hammer Crusher Machine

As is known to all, hammer crusher is a commonly used crushing machine suitable for the medium crushing and fine crushing of materials with medium hardness such as limestone, slag, coke and coal in such industrial departments as cement, chemistry, power and metallurgy. Among the customers that visit Hongxing Machinery, there are many professionals which usually ask about the design problems related of rotor of hammer crusher machine. Here the experts from Hongxing Machinery will introduce to everyone how is the rotor of a hammer crusher machine is designed and how to reasonably design it.

1. The relationship between the shape, quality of hammers and the materials to be crushed.

The shape of the hammers of hammer mill is related to the property and granularity of the materials to be crushed, such as hardness, brittleness and granularity. The relationship between the shape and quality of hammers will not only influence the crushing force, but influence the service life of hammers.

2. The determination of the position of pin hole of hammers.

Even though the rotor of a hammering machine satisfy the balance requirement, if the hammers are not correctly hung, which means if the position of pin hole is not correct, impact force of reaction will be produced on pin roll, principal axis and bearings along with the impact of hammers on materials. For this reason, to make sure there is no impact force produced on the pin roll of hammers in the working process of this crusher machine, it is necessary to make the hammers in a balance state under the impact. The so-called balance state means that when hammers impact materials, there is no impact force produced on the hung pin roll. Fundamentally speaking, it is necessary to correctly choose the position of pin hole.

3. The determination of hammer weight.

Hammers are the crucial spare parts of hammering machine, and the weight of hammers will directly influence the crushing effect. If the hammers are too light, they cannot satisfy the requirement of crushing the materials for once; if the hammers are too heavy, the useless power consumption will be high. All the spare parts of rotor are supported by the principal axis which is installed in the flow bearing of the side wall of the machine frame. In addition, in the working process of the crushing plate, the impact force produced will also be sustained by the principal axis, for this reason, it requires the material of principal axis to have high strength and tenacity.