Modernization of an old balancing machine with hard-bearing supports
Earlier in the article, I described the modernization of an old tasakaalustusmasin with soft-bearing supports. For such machines, we install the Balanset-1A balancing device in the case of machines with two supports, and the Balanset-4 in the case of machines with more supports.
Hard-bearing supports: design and advantages
In this article, we will consider the modernization of an old balancing machine with hard-bearing supports. Their supports are made in the form of rigid plates with shaped grooves (slots). The natural vibratsioon frequencies of these supports are significantly (at least 2-3 times) higher than the maximum rotational speed of the rootor being balanced on the machine.
Kõva laagriga masinad on mitmekülgsemad kui pehme laagriga masinad, kuna need võimaldavad tavaliselt tasakaalustada suurema hulga omadustega rootorid. Nende masinate oluline eelis on ka see, et nad võimaldavad rootorite suure täpsusega tasakaalustamist suhteliselt madalatel pöörlemiskiirustel, mis võivad olla vahemikus 200-500 pööret minutis ja alla selle.
Joonisel 1 on kujutatud foto tüüpilisest kõvade laagritega tasakaalustusmasinast.
Vana balansseerimismasina uuendamine kõvakõrguse tugede abil. Balanseti kasutamine mõõtesüsteemina.
How the support reacts to unbalance forces
From this figure, it can be seen that individual parts of the support formed by the shaped grooves have different stiffness, which under the influence of tasakaalutus forces on the rotor can lead to deformations (displacements) of some parts of the support relative to others. (In figure 2, the more rigid part of the support is highlighted in red dotted lines, and its relatively compliant part in blue).
Vana balansseerimismasina uuendamine kõvakõrguse tugede abil. Balanseti kasutamine mõõtesüsteemina.
Sensors for measuring support deformation
To measure the specified relative deformations in machines with hard-bearing supports, either force sensors or highly sensitive vibration sensors of various types, including non-contact displacement sensors, can be used.
Vana balansseerimismasina uuendamine kõvakõrguse tugede abil. Balanseti kasutamine mõõtesüsteemina.
Vana balansseerimismasina uuendamine kõvakõrguse tugede abil. Balanseti kasutamine mõõtesüsteemina.
Balanseti kasutamine mõõtesüsteemina.
Vana balansseerimismasina uuendamine kõvakõrguse tugede abil. Balanseti kasutamine mõõtesüsteemina.
Force sensors from Vibromera
Meie ettevõte on loonud Balanset-1A ja Balanset-4 seadmetega ühendatavate jõuandurite tootmise.
Balanset-seadme jõuandur. Mõeldud kasutamiseks kõvade laagritugedega tasakaalustusmasinates.
