Moving contact assembly of high-voltage direct-current contactor

Abstract

The utility model discloses a high-voltage DC contactor moving contact assembly, which is characterized in that the high-voltage DC contactor moving contact assembly comprises a connection module, an installation module and a moving contact block, the connection module comprises a connection sheet, a shaft rod, a torsion spring tube and a fixing sheet, the installation module comprises installation holes, installation columns and locking nuts, the installation holes are arranged at the end part of the connection sheet at equal intervals, and the installation columns are arranged at the end part of the connection sheet. The mounting column penetrates and extends out of the mounting hole, the locking nut is arranged at the upper part of the mounting column in a threaded manner and extends into the upper end of the connecting piece in a threaded manner, and one group of moving contact blocks are arranged and are connected to the inner side of the mounting column in a damping manner; the shaft rod penetrates through the middle of the connecting piece, one end of the shaft rod is fixed to the inner side of the torsional spring pipe, and the fixing piece is fixed to the outer side of the torsional spring pipe. The utility model solves the problems that when the position of the moving contact of the existing high-voltage direct current contactor is adjusted and used, the moving contact needs to be disassembled, and screw holes at proper positions of the connecting sheets need to be formed, so that time and labor are wasted.

Description

Technical Field

[0001] This utility model relates to the field of contactor moving contact technology, and in particular to a moving contact assembly for a high-voltage DC contactor. Background Technology

[0002] The moving contact of a high-voltage DC contactor is one of its core components, mainly responsible for working with the fixed contact to connect and disconnect the circuit.

[0003] However, it still has the following drawbacks in practical use:

[0004] The moving contacts of existing high-voltage DC contactors are fixed to the lower end of the connecting plate by a threaded connection. If the position of the moving contacts needs to be adjusted, not only must the moving contacts be disassembled, but the connecting plate must also be drilled with threaded holes in appropriate positions, which is time-consuming and labor-intensive. Utility Model Content

[0005] The purpose of this utility model is to provide a moving contact assembly for a high-voltage DC contactor, in order to solve the problem mentioned in the background art, where the moving contacts of existing high-voltage DC contactors are fixed to the lower end of the connecting plate by a threaded connection. If the position of the moving contacts needs to be adjusted, not only must the moving contacts be disassembled, but the connecting plate must also be drilled with screw holes at appropriate positions, which is time-consuming and labor-intensive.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: a moving contact assembly for a high-voltage DC contactor, comprising a connection module, an installation module, and moving contact blocks. The connection module includes a connecting piece, a shaft, a torsion spring tube, and a fixing piece. The installation module includes mounting holes, a mounting post, and a locking nut. The mounting holes are equidistantly opened at the ends of the connecting pieces, and the mounting post extends through and out of the mounting holes. The locking nut is threaded onto the upper part of the mounting post and extends threaded into the upper end of the connecting piece. The moving contact blocks are arranged in a group and dampedly connected to the inner side of the mounting post. The shaft passes through the middle of the connecting piece, and one end of the shaft is fixed to the inner side of the torsion spring tube. The fixing piece is fixed to the outer side of the torsion spring tube.

[0007] Furthermore, threaded holes are provided at equal intervals on the outer edge of the fixing plate.

[0008] Furthermore, it also includes a disassembly and assembly module, which includes a force-bearing gear, a force-applying rod, and a force-applying tooth block; the force-bearing gear is fixed to the upper end of the locking nut, and a group of force-applying rods are symmetrically arranged on the inner side of the force-bearing gear, and the force-applying tooth blocks are fixed at equal intervals to the outer ends of the force-applying rods, and the force-applying tooth blocks and the force-bearing gear are meshed together.

[0009] Furthermore, the assembly / disassembly module also includes a force-applying frame; the force-applying frame is fixed at equal intervals to the upper middle part of an adjacent group of force-applying rods, and anti-slip textures are distributed at equal intervals on the middle surface of the force-applying frame.

[0010] Compared with existing technologies, the advantages of this utility model are:

[0011] This utility model is provided with a mounting hole, a mounting post, and a locking nut. The mounting hole is opened at the end of the connecting piece. After the mounting post is inserted and tightened by the locking nut, the lower inner part of the mounting post can be damped and fixed to the moving contact block. If the position of the moving contact block is adjusted, the mounting post can be directly inserted into the appropriate mounting hole and locked, without the need to open the hole again or repeatedly disassemble and reassemble the screws, saving time and effort.

[0012] Based on the above-mentioned beneficial effects, the device is equipped with force-applying teeth and force-receiving gears. During the disassembly and assembly of locking nuts, multiple locking nuts can be disassembled and assembled at one time through the meshing force-receiving gears and force-applying teeth, after the force-applying frame applies a moving force to the force-applying rod, thereby improving work efficiency. Attached Figure Description

[0013] Figure 1 This is a top view of the present invention;

[0014] Figure 2 This is a bottom view of the present invention;

[0015] Figure 3 This is a schematic diagram of the disassembly and assembly module of this utility model;

[0016] In the diagram: 11. Connecting plate; 12. Shaft; 13. Torsion spring tube; 14. Fixing plate; 21. Mounting hole; 22. Mounting post; 23. Locking nut; 31. Force-bearing gear; 32. Force-applying rod; 33. Force-applying tooth block; 34. Force-applying frame; 4. Moving contact block. Detailed Implementation

[0017] Please see Figure 1-3 This embodiment is a moving contact assembly for a high-voltage DC contactor, including a connection module, an installation module, and moving contact blocks 4. The connection module includes a connecting piece 11, a shaft 12, a torsion spring tube 13, and a fixing piece 14. The installation module includes mounting holes 21, mounting posts 22, and locking nuts 23. The mounting holes 21 are equidistantly located at the ends of the connecting piece 11, and the mounting posts 22 extend through the mounting holes 21. The locking nuts 23 are threaded onto the upper part of the mounting posts 22 and extend threaded into the upper end of the connecting piece 11. The moving contact blocks 4 are arranged as a group and are dampedly connected to the inner side of the mounting posts 22. The shaft 12 passes through the middle of the connecting piece 11, and one end of the shaft 12 is fixed to the inner side of the torsion spring tube 13. The fixing piece 14 is fixed to the outer side of the torsion spring tube 13.

[0018] Furthermore, threaded holes are provided at equal intervals on the outer edge of the fixing piece 14.

[0019] Furthermore, it also includes a disassembly and assembly module, which includes a force-bearing gear 31, a force-applying rod 32, and a force-applying tooth block 33; the force-bearing gear 31 is fixed to the upper end of the locking nut 23, and a group of force-applying rods 32 are symmetrically arranged on the inner side of the force-bearing gear 31, and the force-applying tooth blocks 33 are fixed at equal distances to the outer ends of the force-applying rods 32, and the force-applying tooth blocks 33 and the force-bearing gear 31 are meshed together.

[0020] Furthermore, the disassembly and assembly module also includes a force-applying frame 34; the force-applying frame 34 is fixed at equal intervals to the upper middle part of an adjacent group of force-applying rods 32, and anti-slip textures are evenly distributed on the middle surface of the force-applying frame 34; the force-applying frame 34 is used to apply force when disassembling and assembling the locking nut 23, and the anti-slip textures increase friction, which helps to control the structure of the force-applying frame 34.

[0021] The working principle of this utility model is as follows: Select a suitable mounting hole 21 according to the installation position requirements, insert a mounting post 22 into the suitable mounting hole 21, and insert a locking nut 23 into the upper part of the mounting post 22 and tighten it until the lower thread of the locking nut 23 extends into the upper end of the connecting piece 11; at this time, the upper part of the moving contact block 4 can be inserted into the lower inner part of the mounting post 22, and an upward pushing force can be applied to dampen and lock it; if the moving contact block 4 needs to be disassembled and the installation position changed, simply select a suitable mounting post 22 again and apply the same steps as above; this solution does not require repeated disassembly and assembly of bolts, saves time and effort, and is convenient to use.

[0022] When disassembling using the disassembly and assembly module, the force-applying tooth block 33 at the outer end of the force-applying rod 32 is engaged with the force-receiving gear 31, and the force-applying frame 34 is manually controlled. At this time, the manual force is applied to the force-applying rod 32 through the force-applying frame 34, and the force is transmitted to the locking nut 23 through the engaged force-applying tooth block 33 and the force-receiving gear 31, so as to simultaneously drive the rotation of multiple locking nuts 23 during disassembly and assembly. This solution can simultaneously disassemble and assemble multiple locking nuts 23, improving work efficiency.

Claims

1. A moving contact assembly for a high-voltage DC contactor, characterized in that: The device includes a connection module, an installation module, and a moving contact block. The connection module includes a connecting piece, a shaft, a torsion spring tube, and a fixing piece. The installation module includes mounting holes, a mounting post, and a locking nut. The mounting holes are equidistantly located at the ends of the connecting pieces, and the mounting post extends through and out of the mounting holes. The locking nut is threaded onto the upper part of the mounting post and extends threaded into the upper end of the connecting piece. The moving contact block is configured as a set and is dampedly connected to the inner side of the mounting post. The shaft passes through the middle of the connecting piece, and one end of the shaft is fixed to the inner side of the torsion spring tube. The fixing piece is fixed to the outer side of the torsion spring tube.

2. The moving contact assembly of a high-voltage DC contactor according to claim 1, characterized in that: The outer edge of the fixing plate is provided with threaded holes at equal intervals.

3. The moving contact assembly of a high-voltage DC contactor according to claim 1, characterized in that: It also includes a disassembly and assembly module, which includes a force-bearing gear, a force-applying rod, and a force-applying tooth block; the force-bearing gear is fixed to the upper end of the locking nut, and a group of force-applying rods are symmetrically arranged on the inner side of the force-bearing gear, and the force-applying tooth blocks are fixed at equal distances to the outer end of the force-applying rods, and the force-applying tooth blocks and the force-bearing gear are meshed together.

4. The moving contact assembly of a high-voltage DC contactor according to claim 3, characterized in that: The assembly / disassembly module also includes a force-applying frame; the force-applying frame is fixed at equal intervals to the upper middle part of an adjacent group of force-applying rods, and anti-slip textures are distributed at equal intervals on the middle surface of the force-applying frame.

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