2012年5月31日星期四

What is a through hole type ring?

Hollow shaft slip rings , also called hole type slip ring, what is via a slip ring? Slip ring structure has many kinds, according to the structure, use of the field, the transmission medium has different classification, via slip ring from the main structure division, also called hollow shaft slip ring. The slip ring using range is mainly the need for unrestricted rotation from the fixed position to the rotational position of power or data transmission, its manufacturing process and principle and the other slip ring almost, is through the brush bundles and contact, to the current, signal data, from a stationary position is transmitted to the rotational position. Through hole type of slip ring of basic technical parameters are the diameter, diameter, length, number of rings, voltage, current, maximum speed and so on. Through hole type slip ring technology parameters, are variable in length, can be customized, and the outer diameter, diameter, in the industry have a standard size, such as Zhi Ling special hole type slip ring diameter mainly 12.7mm series,25.4mm series,38.1mm series and so on, range from12.7mm to 300mm, diameter and between the inner diameter of a proportional relationship such as 12.7outer half56mm, via slip ring, ring number is a very important parameter, but also slip ring price certain decisive factors, through hole series ring number is from 1avenue to 24 Avenue with different number of loops, the price differs very big, so in in the manufacturing process, the ring number increasing, the manufacturing process is more complex, in order to insulation, sometimes may be used to update the model material, which is why the ring number of large volume small slip ring, the factor of price is very expensive. Maximum speed is via slip ring of the work of the highest rotation speed, by the minute as a statistical unit, under normal circumstances, cannot last long time at the highest speed, which will shorten the service life of the slip ring, if it exceeds the maximum speed to work, in addition to the slip ring of life has a great influence on the outside, will greatly affect the signal transmission accuracy, causing the signal noise increases, more serious causes the distortion of the signal, so it is easy to damage the slip ring. Via slip ring of high voltage and maximum flow is a limit parameter, in under the normal operation condition, generally do not achieve this situation. Via slip ring of the applications are very broad, mainly medical, rotation of the CNC table, CNC machining center, wire reel, packaging machinery, wind power generation equipment and so on, in a lot of need in stationary and non stationary structure of signal transmission component, need to use via slip ring. The future, via slip ring in the automation equipment, automated test equipment, automation and robotics, robots future new areas, will be a large number of applications, then, on the via hole type ring structure and technical parameters of proposed higher requirements, so the slip ring manufacturer should be in the production of existing products at the same time, R & D funds to research new products, new structure in order to adapt to the future of hole type ring needs. Hole type ring volume is not large, there are a lot of customization and customization, so individual prices are relatively high, but unlike the cap ring, each type has a certain standard, the price is relatively cheaper.

Collector ring product knowledge to explain

Increased upper and lower collector rings spacing. Increased collector ring spacing of the main purpose is to prevent units passed to lift up and down between the collecting ring short circuit, reducing the probability of collector ring topic ablation. Instead of collecting ring torus as spiral grooves torus. The old collector ring torus are planar structure, easily lead to brushing surface to form tiny gas membrane, is not conducive to a carbon brush and a collector ring torus full contact. New electric ring torus with spiral grooves torus, increased collector ring brush between the torus and permeability, is conducive to the collector ring torus full contact. This structure has been in the Three Gorges units and Gezhouba Dam capacity unit has been successfully applied. Widening the collector ring. Current collector ring width of 40mm, after the transformation of collector ring width will increase80 mm, increase the collector ring width can improve the heat dissipation performance of collector rings, and is beneficial to brush and a brush holder mounting mode transformation. Collector ring replacement: A conductive ring is also called ring collector, collector, collector ring, conductive slip ring, brush, slip ring, rotary joint, electric rotary joints, conducting ring can improve the system function, the system structure is simplified, avoid the flow of joint rotation and twisted wire. Widely used in security, wind power generation, factory automation, power, finance, chemical, metallurgical, instrumentation, medical, aviation, military, marine, transportation, construction and other mechanical and electrical equipment, a conductive ring can be used in any required continuous rotation at the same time, also need from fixed position to the rotation position of the transmitting power and the signal of mechanical system in. Collector ring slip type working surface is smooth, there is no burn marks, streak defect. Requirements of working face smooth, not due to rust and grease. Collector ring insulation outer binding to accurately, good sealing. If there is no good treatment, can be used in synthesis of resin impregnated fiberglass cloth binding, to prevent the operation of the motor leakage mica scattering. Collector ring is matched with a shaft and the ring and the insulating sleeve matching should be firm, with a small hammer small buckle copper ring and a set of copper coordination office, the metal sound. Collector ring of insulating casing integrity no crack and no loose. Lead wire connection should be firm, insulation resistance value in working temperature of 75 shall be not less than0.5M Ω. In the brush device, requirements brush box lower edge of the collecting ring and2~4mm apart from the surface, will cause the brush in the brush box seat, if it is hard brush, probably fragmentation. Brush in the brush box internal flexible sliding, brush box inner hole smooth surface, brush box aperture dimension tolerance is H10, the axial dimension tolerance is H8. Collector ring brush in operation, the contact surface to form a layer of average, moderate, chaos of the oxide film, this is one of the main symbols of the motor runs well. As a result of this oxide layer exists, change the brush and collector ring contact characteristics, reduced friction, reduced wear, prolong the using life of. Film is a kind of composite film, its composition and brush type and collector ring material composition. Normal thickness of oxide film in8 - 100nm range, is generally 25nm. With electronic microscope, the brush and collector ring contact surface are composed of a large number of point contact contact surface, generally only brush the total area of a few thousandths around.

2012年5月29日星期二

Serip electronic products have signal anti-interference measures?

Precision conductive slipring is a small space, walk the line of quite dense parts, each kind of signal in the slip ring, so that the signal transformer, mutual capacitance between a large effect. Because the brush and slip ring contact cannot be shielded, the capacitive coupling is particularly serious. I am using proprietary technology, from the slip ring structure design and the slip ring internal wiring design consideration, can completely avoid the power and signal, signal and signal interference, and can prevent the outside of the ring internal electromagnetic interference.