According to the materials, wire rope vibration isolator can be divided into natural rubber and synthetic rubber. Natural rubber is superior in physical and mechanical properties, while synthetic rubber is outstanding in some special properties, such as oil resistance, ageing resistance, acid and alkali resistance, ozone resistance and high-temperature resistance.
Rubber isolation mounting feet can be divided into plate type, pressure type and shear type. As far as the vibration isolation effect is concerned, the pressure type is better than the plate type, and the shear-type is better than the pressure type.
There are 40, 60 and 80 kinds of rubber isolation mounting feet according to the shore hardness. The static compression amount of rubber isolation mounting feet with different shore hardness is different under the same load condition.
Scope of application:
Vibration absorption and isolation of mechanical equipment and instruments.
Key points of design and selection: 1) the vibration isolation design elements of water pump unit shall be calculated according to the pump model and specification, speed, system quality, installation position, load value, frequency ratio requirements and other factors. The frequency ratio of vibration isolation of the water pump unit should be 2-5, and the place with high vibration isolation requirement should be taken as high value.
2) the horizontal water pump is generally equipped with rubber isolation mounting feet. When installed on the floor, it is better to use multi-layer series rubber isolation mounting feet or damping spring vibration isolators.
3) rubber vibration isolator should be used for a vertical water pump.
4) the supporting points of the vibration isolation elements shall be even, but not less than 4. The model, specification and performance of the vibration isolation elements at each supporting point of a water pump unit shall be consistent.
Key points of construction and installation:
1) the installation of water pump vibration isolation can be carried out according to the National Architectural Standard Design Atlas 95ss103 vibration isolation and installation of a vertical water pump and 98s102 vibration isolation and installation of a horizontal water pump.
2) the floor where rubber isolation mounting feet are placed shall be flat and free from ponding, so as to avoid contact with acid, alkali, organic solvent and other substances. Directly on the floor, not fixed.
3) before construction and installation, check-in time. During installation, the static compression deformation of the vibration isolation element shall not exceed the maximum allowable value.
4) if there is serious damage to the rubber isolation mounting feet and the ageing time is exceeded, it shall be replaced in time.
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