[0021] See figure 1 The automatic descaling device for field high voltage busbar joints of the present invention mainly includes: a polishing device 2, an MCU controller 12, a stepping motor 10, a screw rod 11, a nut pair 14, a slider 6 and an impedance detection module. Among them, the end of the high-voltage busbar connector 1 that needs to be polished passes through the middle of the polishing device 2 horizontally. The grinding device 2 is fixedly connected to the sliding block 6, and the sliding block 6 is fixedly connected to the nut pair 14, which is matched with the screw rod 11. The stepping motor 10 is arranged horizontally, and the output shaft is fixedly connected to one end of the screw rod 11, The high-voltage busbar connectors 1 are parallel. In this way, the stepping motor 10 works and drives the screw 11 to rotate, thereby driving the slider 6 to move back and forth, so that the polishing device 2 moves back and forth along the high-voltage busbar connector 1 to realize the polishing device 2 to polish the high-voltage busbar connector 1 back and forth.
[0022] The stepping motor 10 is fixedly installed inside the base box 7 through the base 8 and the bolt 9, and the base box 7 is close to the other end of the high-voltage bus connector 1 that does not need to be polished and derusted. The screw rod 11 extends from the outside of the base box 7 into the base box 7 and is fixedly and coaxially connected to the output shaft of the stepping motor 10. A bearing 15 is connected between the screw rod 11 and the side wall of the base box 7 so that the screw rod 11 can rotate .
[0023] The base box 7 is provided with an MCU controller 12 and a maintenance-free battery 13. The MCU controller 12 is connected to the stepper motor 10 through a control line, and controls the forward and reverse rotation of the stepper motor 10. The maintenance-free battery 13 is used to provide power to the stepping motor 10 and the MCU controller 12.
[0024] A support frame 16 is fixedly installed above the top of the base box 7. The support frame 16 is provided with a square through slot facing the high-voltage bus connector 1, and a support plate 17 is fixed on each side of the square through slot. The end of the busbar connector 1 that does not need to be polished extends into the square through groove and is placed on the support plate 17. The shape of the contact point between the support plate 17 and the high-voltage busbar connector 1 matches the outer surface of the high-voltage busbar connector 1 so that the high-voltage busbar connector 1 It can be stably supported on the pallet 17.
[0025] The top of the support frame 16 is connected with three vertical movable bolts 18 evenly spaced apart, and the three movable bolts 18 are in the same horizontal position. The position of the movable bolt 18 can be raised and lowered by screwing the three movable bolts 18. When the other end of the high-voltage busbar connector 1 does not need to be polished and rust-removed extends into the support frame 16, the three movable bolts 18 are located directly above the high-voltage busbar connector 1. When the three movable bolts 18 are unscrewed, the high-voltage busbar connector can be fixed 1. Make the high-voltage bus connector 1 immobile, so as to realize the fixation of the high-voltage bus connector 1.
[0026] See figure 2 with image 3 The outside of the polishing device 2 is a horizontal cylindrical shell 28 formed by connecting the semicircular upper shell 22 and the semicircular lower shell 23 through the hinge 5, the upper shell 22 and the lower shell The body 23 is closely aligned with the buckle 3 and the plug 4, and the two buckles 3 and the corresponding plug 4 are installed on the side surface of the housing 28 in the same horizontal position, and the housing 28 can be opened and closed.
[0027] Four frosting sheets 27 with the same structure are uniformly arranged along the circumferential direction on the inner surface of the shell 28. When the shell 28 is closed, the four frosting sheets 27 form a cylindrical shape and are coaxial with the high-voltage busbar connector 1, which is just right. Completely wrap the end of the high-voltage busbar connector 1 that needs to be polished and derusted to achieve smooth and clean derusting.
[0028] In the direction along the diameter of the housing 28, each frosting sheet 27 is fixedly connected to the inner end of a first connector 26, the first connectors 26 are arranged radially, and the connecting parts are connected together by using epoxy resin. The first connector 26 is a T-shaped structure, the outer end of which is a horizontal end of the T-shape, and the vertical end of the T-shape is arranged radially. The outer end of each first connector 26 is fixedly connected to the inner end of the first reciprocating spring 25, and the outer end of the first reciprocating spring 25 is fixed to the inner wall of the housing 28 by welding. The function of the first reciprocating spring 25 is to realize the expansion and contraction of the first reciprocating spring 25 after the four frosting sheets 27 erase some of the rust layer on the surface of the high-voltage busbar connector 1 to ensure that the four frosting sheets 27 tightly abut the high-voltage busbar connector 1 at all times.
[0029] In order to prevent the shaking of the first reciprocating spring 25, four sleeves 24 are fixedly welded on the inner wall of the housing 28, and each sleeve 24 is sleeved outside a first reciprocating spring 25 to fix the first reciprocating spring 25 so that It cannot be shaken arbitrarily. The outer end of each first connector 26 extends into a corresponding sleeve 24 and is fixedly connected to the first reciprocating spring 25.
[0030] See Figure 4 with figure 1 An impedance detection module is set on the outer surface of the high-voltage busbar connector 1. The impedance detection module includes a conductive metal sheet 21 and an impedance detection unit 31 to detect the impedance of the high-voltage busbar connector 1 to understand the polishing of the high-voltage busbar connector 1 in real time. Whether the rust removal is sufficient. Among them, the impedance detection unit 31 is located inside the housing 28 and is closely attached to the outer surface of the end of the high-voltage bus connector 1 that needs to be polished and derusted. The impedance detection unit 31 is connected to the inner end of the second reciprocating spring 30 through the second connector 29 , The outer end of the second reciprocating spring 30 is welded and fixed to the housing 28, and the second reciprocating spring 30 is fixed by the same sleeve 24 as that of the polishing device 2 so that it cannot shake randomly. The second connector 29 has the same structure as the first connector 26 in the polishing device 2. The impedance detection unit 31 is led out from the inside of the housing 28 to the outside through the first wire 19 and is connected to the MCU controller 12. The conductive metal sheet 21 is located at the other end of the high-voltage busbar connector 1 that does not need to be polished and rusted, and is closely attached to the outer surface of the other end of the high-voltage busbar connector 1 that does not need to be polished and rusted, and is removed from the support frame 16 by the second wire 20 Lead out. The conductive metal sheet 21 and the impedance detection unit 31 both serve as the output end of the impedance acquisition module, and send the collected impedance of the high-voltage bus connector 1 to the MCU controller 12, and the MCU controller 12 receives and processes the collected high-voltage bus connector 1 impedance.
[0031] See Figure 5 , The MCU controller 12 is connected to the impedance detection module through the first wire 19 and the second wire 20, and is connected to the stepping motor 10 through the control wire. The maintenance-free battery 13 is used to provide working power for the stepping motor 10, the MCU controller 12 and the impedance detection module. The MCU controller 12 receives and processes the impedance of the high-voltage bus connector 1 collected by the impedance detection module, and controls the forward and reverse rotation of the stepper motor 10, thereby realizing the back and forth movement of the polishing device 2 for polishing.
[0032] See Figure 1-5 The working steps of the automatic descaling device for field high-voltage busbar joints of the present invention are as follows:
[0033] Step 1: Extend the end of the high-voltage bus connector 1 that needs to be polished and derusted into the polishing device 2, lock it with the buckle 3 and insert the pin 4, and place the other end of the high-voltage bus connector 1 that does not need to be polished and derusted on the support On the pallet 17 on the frame 16, the movable bolt 18 is used to fix the high-voltage bus connector 1 so that it cannot move.
[0034] Step 2: The MCU controller 12 controls the stepping motor 10 to rotate forward for M steps, so that the polishing device 2 follows the slider 6 to move a distance of L. At this time, the polishing device 2 at a distance of L is equivalent to polishing the first all over.
[0035] Step 3: The MCU controller 12 controls the stepping motor 10 to reverse M steps, so that the polishing device 2 moves backwards with the slider 6 by a distance of L. At this time, the polishing device 2 is equivalent to polishing at a distance of L The second time. In this way, a back and forth polishing and rust removal are achieved.
[0036] Step 4: The impedance R of the high-voltage bus connector 1 collected by the impedance detection module, the MCU controller 12 receives and processes the impedance R of the high-voltage bus connector 1 collected by the impedance detection module, and compares it with the preset impedance threshold R T Compare if R> R T , Then continue to control the stepping motor 10 to polish and remove rust, that is, repeat steps 2-3, if R T , Disconnect the maintenance-free battery 13, stop grinding and rust removal.
