Darui Electric recommends
The current collector is the main device on the current collection side of the sliding contact line system that picks up electrical energy. It directly conducts electrical energy to the electrical equipment through the sliding contact between the collector brush and the guide rail, thereby achieving mobile power supply for the system. The current collector consists of two parts: a mechanical tension device and a collector brush that directly slides in contact with the guide rail.
Power supply methods
When considering the power supply points for the safe sliding contact line, the total number and total capacity of electrical equipment on the same span, the duty cycle, and the voltage drop along the entire line length, as well as the environment, should be considered (the voltage drop calculation can be based on the data in the previous guide rail parameter table). The following power supply methods are generally available for user reference: ① Single-end power supply; ② Middle power supply; ③ Two-end power supply; ④ Power supply at 1/6 from both ends; ⑤ Three-point power supply at both ends and the middle, etc.
Installation instructions Before installing the sliding contact line, first fix the angle steel brackets according to the installation form selected by the user and the suspension spacing of the sliding contact line. At the installation site, slide the required suspension seats onto each 6-meter section of the sliding contact line, along with one joint protective cover at each end, and also install one aluminum joint at one end. When installing the aluminum joint, note that only 1/2 of the aluminum guide rail should be inserted into the joint, leaving the other half for connection to the next guide rail. After the above preparations are complete, hang the sliding contact lines one by one on the brackets and connect them along the entire line. When connecting, tighten the screws of each joint. If the total length of the sliding contact line exceeds 200 meters, expansion devices should be installed (our factory supplies expansion devices at any time). When connecting the power supply cable, it can be connected at the joint of each 6-meter section. For specific connection methods, refer to the previous joint device diagram. When installing curved sliding contact lines, the suspension distance should be shortened accordingly, and the specific dimensions can be determined based on site conditions. When installing the current collector, first install it on the matching square tube, then select an appropriate position that matches the sliding contact line and fix it on the electrical equipment. Note that to ensure good tracking performance and good contact ability between the current collector and the sliding contact line, the current collector and the sliding contact line should be installed in the same vertical and horizontal direction. Maintenance
The safe sliding contact line should be inspected regularly during normal operation, because electrical equipment is the main production tool for every industrial and mining enterprise, and any slight error can directly affect the production efficiency of the factory. When inspecting the sliding contact line, check whether the joints at each 6-meter section are loose or disconnected. When inspecting the current collector, check whether the moving parts rotate flexibly, whether the tension spring is fatigued, and the wear of the carbon brush (these conditions can affect the conductivity of the sliding contact line and the tracking performance of the current collector. Adjustments should be made in a timely manner). During holiday equipment overhaul periods, remove the current collector from the guide tube and check the wear of the carbon brush and guide roller. If the brush protrusion is less than the specified effective length, replace it promptly. If the guide roller is severely deformed, it also needs to be replaced to maintain normal operation of the current collector and good contact of the brush, and to identify the cause. Among all components of the safe sliding contact line, the carbon brush is the most normally worn part. For environments with severe corrosive gases, also check the corrosion of brackets, suspension clamps, and tractors; take timely measures and apply anti-rust materials. If construction is carried out at the place where the sliding contact line is used, do not impact or press the conductive guide tube, and do not place heavy objects on it. Prevent deformation and cracking of the conductive guide tube, which could affect use and cause safety accidents. After construction is completed, immediately remove construction debris from the conductive guide tube. During normal maintenance, personnel are not allowed to step on the conductive guide tube or its brackets to prevent damaging the flatness of the entire line and causing accidents.
Note: The above information and technical parameters are compiled and released by Yangzhou Darui Electric Co., Ltd.
