A slip ring is an electromechanical device that allows the transmission of power and electrical signals from a stationary to a 360degree free rotating structure,offen be used on any rotating object to transfer tiny voltage ,HF signal,EMF,thermocouple,computer signals,strain gauge,current,Inter Bus,Can-Bus,Profibus,RS422,RS485,PLC, digital/analog video,digital audio ,Gigabit Ethernet,sensor signal and so on.
It is very important for customers using the slip ring connector to how to choose a suitable slip ring connector.slip ring connector is a precision parts, its internal structure is very complicated.We all know that, it is likely to lead to the whole equipment can`t normal operate if the slip ring connector selected properly which is a rotating parts of the fittings,more seriously,it will lead to catastrophic events.So how to choose the slip ring connector?
Through hole Slip-Rings, For example:
The mechanical parameters of slip ring connector mainly included circuits, operating speed, working temperature, working humidity, contact materials, wire length, housing material, torque, and protective level,etc. The circuits which we have circumstantiated in the front of the article means transmission signal or voltaic way,superficially,it is a few wire and channels. Next we will introduce in detail some important mechanical parameters which are introduced minutely,and introduce the key problems and the influence of erecting equipment that you must consider in useing.
Operating speed is a very important argument in mechanical parameters,and it is indispensable when we choose the slip ring connector.Because it affects all the service behavior.High cost is too high,and high speed of the slip ring limit the circuits,Please choose one or the other of these two.So when we choose an appropriate slip ring connector,we need to judge and weigh all factors to choose appropriate speed of the slip ring.Usually,the unit of Operating speed means how many units it runs in a minute.The special slip ring connector which transfers large current,its speed is very low.A high spped can have tens of thousands turned in a minute,and a low speed only have one turned in a minute. Working temperature is the minimum temperature and the tallest temperature in normal working conditions.As we all know, temperature closely affects electrical conductivity of the slip ring connector.If the temperature is too low, some resistances of conductive medium will have a big change,and if the temperature is too high,some plastic will be melt.Generally speaking, the normal working temperature of the slip rings betweens at Minus 40 to 80 degrees.
Capsule,Compact Slip-Rings, For example:
Work humidity is also a very important mechanical factors affecting dielectric resistance of the slip ring connector.In high humidity environment,if circuits separated too close,it is easy to be breakdowned in high voltage.Then it will cause a short circuit or more serious accident, so humidity cannot too high.When we choose and buy,we must survey the equipment of humidity range in working environment,so as to avoid unnecessary accidents in production.It is very important for contact materials to all the functions of slip ring connector.The contact materials need to have a few important characteristics, such as wear-resisting,thermostability,small resistance etc.The slip ring connector need 24 hour uninterrupted operation.An poor wear-resisting is very easy to be old and damaged,finally lead to be bad contact and the signal transmission not to be smooth. It is the same true for thermostability to triction heat production when high-speed rotating. Friction heat generation can lead to the higher contact points of contact materials.If it is not thermostability,the contact materials is easy to melt.Undoubtedly,touching contacts area cannot too big for lectrical conductivity,therefore the conductivity requires very good.
It is very important for customers useing the slip ring connector to how to choose a suitable slip ring connector.slip ring connector is a precision parts, its internal structure is very complicated.We all know that, it is likely to lead to the whole equipment can`t normal operate if the slip ring connector selected properly which is a rotating parts of the fittings,more seriously,it will lead to catastrophic events.So how to choose the slip ring connector?
First of all, we have to judge the type of slip ring connector which our machinery equipment needs to use. Is it through bore,capsule or mercury medium? Each type of parameters are all different,and also the characteristic is not the same.Through bore usually use in a fixed axle and turned quter diameter occasion,but the capsule is opposite.The most important parameter is channels when we choose the slip ring connector,that means your equipment transfers signal from the fixed location or the channels when current arrives operating location.The more the channels are,the higher craft of the slip ring is.Generally speaking, due to the volume of restriction, channels of the slip ring connector are certain limited.The larger the volume is , the more the channels to safety transmission.It is different between transfering signal or current.Such as signal,its insulation impedance is very small because of the micro current,it can hold more the channels at the same volume.The channels of current also is a key factor,the more the current is,the smaller the channels are.Because the more the current is,the more the distances of the transfering channels are,and in same condition the smaller the channels of the transmission are.
Moreover,the concerned parameter is operating speed of the slip ring connector when we choose the slip ring connector.The speed is not too fast,it must fit with own equipment,if the speed is fast,the current can not be very fast,and the channels also can not be many,it will affect service life of the slip rings.When we choose the operating speed,we must estimate the highest operating speed our equipent needed,and then we can choose it on the basis of average value.
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