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Regular maintenance is necessary after the sliding contact line is put into operation
Sliding contact wire is a new type of mobile power supply device, which has the advantages of insulation, safety, temperature resistance, vibration resistance, energy saving, etc. A smooth and flat T2 copper bar or an aluminum profile with a wear-resistant conductor embedded in an engineering plastic tube or slot plate is used as a carrier fluid to form a power transmission conduit. There are open slots under the conduit to facilitate the operation of the current collector. The collector's highly wear-resistant copper-based graphite brush directs electricity to work appliances.
The structure of the sliding contact line is diverse, but the general principle is as follows: mobile devices need to constantly change positions due to movement. At each different position, the mobile device must be able to obtain power at any time, otherwise it cannot continue to move. At this time, the sliding contact line came into being. We laid a number of conductors in parallel along the running track of the mobile device to turn on the power. On mobile devices, we install current collectors that can draw electricity from conductors. In this way, when the device moves, the current collector runs synchronously with the device, and obtains power from the conductor at any time and provides it to the device so that the device can continue to move.
The performance of the sliding contact line is composed of three aspects, including carrying cable, guide wire and flat cable. Usually, this flat cable will use non-flammable materials. It can be used outside and some oily Locally, of course, he needs to have a certain degree of weather resistance. His round cable is much smaller than the radius of the bend, but his life is longer. The sliding contact wire is fixed on the lead-through terminal box with the terminal box of the flat cable. After the four-wheeled vehicle is fixed on the cable according to the corresponding operation, the power source of the cable should be on the latter tractor. Use the spring on the cart to make it move, and use the cable to drag, he will drive the car on the road to perform arbitrary sliding.
In order to ensure the normal operation of the sliding contact line and extend its service life, after it is put into operation, it should be regularly repaired.
1. Brush: It should be checked every 1-3 months according to the usage of mobile electrical equipment. Focus on checking the wear of the current collector brushes. If the amount of wear is ≥5mm, it must be replaced. If the brush is found to be loose or abrasion and deflection occurs during the inspection, the cause should be identified and dealt with in a timely manner.
2. Current collector: Check at least quarterly. Focus on checking the fasteners for looseness, displacement, and wear of plastic and moving parts. Check the spring tension (the contact pressure of the current collector brush and the guide rail should be kept at a certain pressure (see the table below). If any problems are found, deal with them in time.
3. Connections: Check at least once a year. Focus on checking whether the fastening bolts, welds and supports are loose, rusted, shifted, etc. If problems are found, deal with them in a timely manner.
4. Daily inspection: Focus on checking whether the straightness of the track has obvious deviation (greater than 20mm), misalignment, whether the insulation protection parts fall off, break, or break, whether the stainless steel "v" groove is lifted up; whether there are foreign objects on the track And conductive dust. If necessary, check whether the insulation resistance meets the requirements (interphase insulation resistance should be ≥5MΩ).