Application of new self-smooth plastic sliding bearing on blocking switch

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Application of new self-smooth plastic sliding bearing on blocking switch

Source: Bearing network time: 2013-03-15
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The Disconnector is mainly used to block some of the demand for power failure in the high-voltage power distribution equipment and to be reliably blocked; to ensure the safety of the maintenance work. The blocking switch is in the sub-azimuth; there is an insulation interval between the contacts that meets the requirements of the rules. And a significant disconnection mark, in the sense of abutment; a switchgear capable of carrying current under normal road conditions and current under abnormal conditions (eg, short circuit) at regular time. 2. Working principle of the barrier switch All exposed in the air; has a significant break point; the barrier switch does not have arc extinguishing equipment; therefore it can not be used to intercept the load current or short circuit current; otherwise, under the high pressure effect; the breaking point will be intensely charged. 10. Chicory Pregnancy Xing 穑 踔 踔 赡 赡 赡 赡 赡 赡 赡 赡 赡 赡 赡 赡 赡 晃 晃 < < < < < < < < < < < < < < < < < 叭 叭 叭 叭 叭It can also be used to switch between certain circuits; to change the operating method of the system. For example: in a double bus circuit; the switch can be used to switch the circuit in operation from one bus to another. Together; can also be used to operate some small current circuits, aluminum plate spot welding machine 3, the barrier switch conversion part of the sliding bearing application of the barrier switch contacts, that is, the barrier knife splitting measures can rely on manual and electric control to complete; but whether it is That kind of demanding parts can smoothly operate under any circumstances; this requires that the bearings of each transition part can still ensure normal operation after a long time of suspension, in order to ensure that the barrier switch can be used during the annual maintenance process. Normal operation requires that the sliding bearing of each transition part can resist high and low temperature interweaving all year round and can resist the corrosion of various external elements when the end face seal fails; for example, the failure of natural elements such as salt spray, acid rain, oxidative corrosion, etc. .
In the early state, the barrier switch makers were able to handle the transitions of the barrier switches. After the suspension of the long-term stop, they could still work smoothly. Metal sliding bearings were used in each transition part; for example, powder metallurgy bearings, copper alloy bearings and three layers. Composite bearings, although these bearings have adopted the self-smoothing process, they can not change the disadvantages of metal bearings; for example, the smoothing agent is easy to dry, the corrosion after the cover fails, and the aging phenomenon causes the barrier switch to not guarantee the long-term suspension. Normal operation. At present, the domestic use of a certain proportion of the three-layer composite bearing; although the inner diameter of the outer surface of the smooth layer sintered; but the thickness of the smooth layer as long as 0. 03mm; when the smooth layer operation falls behind the transformation axis appearance and the underlying metal The copper powder layer or the low carbon steel is directly touched; this can incur a long-term suspension of the rust and adhesion of the shaft and the metal bearing; the barrier switch has a danger of failure. In order to thoroughly handle these dangers, the European starter switch manufacturer begins the test with new plastics. Self-smooth bearing and proven engineering self-smooth bearing after years of application It is the most useful method to become a barrier switch to deal with the risk of transition failure.
Fourth, self-smooth plastic bearing wear-resistance mechanism CSB-EPB series self-smooth plastic bearings have excellent self-smoothness and wear resistance. First, CSB company makes full use of self-smooth data modification skills; The use of high-strength fiber improves the load of the data and the special smooth grease reduces the friction coefficient of the data; then the improved wear-resisting function of the data extends the service life of the plastic bearing. (For details, please refer to the Chinese CSB company "Engineering Plastics" Since the smooth bearing "manual" high-performance engineering plastics as the base material as the wear-resistant carrier, the reinforcing fiber improves the load bearing and impact resistance function, and the special smooth grease reduces the friction coefficient of the bearing from the smoothing effect.
5. Self-smooth plastic sliding bearings are used in the barrier switch. The self-smooth plastic bearing CSB-EPB1 is suitable for the mechanical transformation of the high-voltage blocking switch in the household table with an additional voltage of 40. 5KV ~ 252KV; ensuring whether it is manual or electric Under the operation, the "opening" and "closing" measures can be smoothly completed.
The use of plastic bearing high pressure blocking switches has the following advantages:
1. Because the plastic bearing CSB-EPB1 can work normally in a vacuum environment; therefore, the high-pressure blocking switch using this plastic bearing has no height constraint; it can work normally in the mountains above 3000 meters above sea level.
2, the long-term operating temperature of plastic bearing CSB-EPB1 is -50 °C ~ +110 °C, so the high-pressure blocking switch using this plastic bearing can be used normally in the cold south of the cold, can be normal operation, can be 10mm Normal operation under the ice layer above the thickness.
3, plastic bearings CSB-EPB1 hygroscopicity is very small as long as 0. 05%, the use of this plastic bearing high-pressure blocking switch, whether it is high humidity, rainy days, high boring summer can complete the normal transformation.
Polaris Switch Network News: 4, because the plastic bearing CSB-EPB1 uses fiber reinforcement; so the high-pressure blocking switch using this plastic bearing can accept all kinds of severe oscillations from the wind (above 700pa) or earthquake (level 8 or above) .
5, CSB-EPB1 plastic bearings excellent anti-fouling can ensure that the high-pressure blocking switch works in a variety of lame environment (dirty level IV or above),
6. The superior corrosion resistance of plastic bearing CSB-EPB1 can complete the transition of various parts in the high salt spray or acid rain environment that can not be completed by traditional metal bearings.
7. All kinds of high-smooth solid smoothing agents are evenly distributed in the plastic bearing CSB-EPB1. Even if the MoS2 lithium-based smooth grease is not coated, it can be completed normally, whether it is manual operation or electric Long-distance remote control operations can be completed.
8. The high-pressure blocking switch of the plastic bearing CSB-EPB1 is used in the process of “closing” or “opening”. The operation of the blocking knife is smoother and there will be no obstruction of the blocking knife caused by the poor transition of each transition part.
9. CSB-EPB1's superior self-smooth wear resistance and anti-aging function (more than 30 years) can ensure that the high-pressure blocking switch can complete more than 100,000 mechanical measures.
The CSB-EPB series of smooth plastic sliding bearings have been widely used in foreign barrier switches for many years. At present, domestic barrier switch manufacturers have gradually begun to use their successful experience abroad. CSB-EPB series self-smooth plastic bearings Their common advantages are being portrayed by all walks of life; especially in the domestic barrier switch portrayal production level catching up with the world to preempt a kind of ability.
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