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CN-121688487-B - Combined conducting ring and assembly method thereof

CN121688487BCN 121688487 BCN121688487 BCN 121688487BCN-121688487-B

Abstract

The invention discloses a combined conductive ring, which comprises a ring body and a conductive brush, wherein a plurality of mounting cavities are formed in the ring body, channels for extending conductive parts are formed in the mounting cavities, the conductive brush comprises an elastic conductive support and conductive tows, one end of the elastic conductive support is a fixed end and is fixedly connected with the ring body, the other end of the elastic conductive support is a free end and is used for clamping and fixing the conductive tows, an elastic part is arranged in the middle of the elastic conductive support and is accommodated in the mounting cavities, and the assembly state of the elastic part generates elastic pretightening force for pushing the free end and the conductive tows to extend towards the inner side of the ring body so that the end parts of the conductive tows are abutted against the surface of an axle body. The self-compensation of the conductive brush is realized without an additional compensation mechanism, the compensation force is flexible and controllable, and the long-term stable use of the conductive brush is ensured.

Inventors

  • SUN YULI
  • XU PENGFEI
  • SHEN YICHUN
  • LIANG BIN
  • ZHANG HUIDI
  • YANG HONGQIN

Assignees

  • 中天科技装备电缆有限公司
  • 江苏中天科技股份有限公司

Dates

Publication Date
20260505
Application Date
20260211

Claims (8)

  1. 1. The combined conductive ring comprises a ring body (100) and a conductive brush (200), and is characterized in that a plurality of mounting cavities (110) are formed in the ring body (100), and channels (112) for extending out of conductive parts are formed in the mounting cavities (110); The conductive brush (200) comprises an elastic conductive support and a conductive filament bundle (240), wherein one end of the elastic conductive support is a fixed end and is fixedly connected with the ring body (100); the other end of the elastic conductive bracket is a free end and is used for clamping and fixing the conductive filament bundles (240); An elastic part (220) is arranged in the middle of the elastic conductive support, and the elastic part (220) is accommodated in the mounting cavity (110); The assembly state of the elastic part (220) generates elastic pretightening force for pushing the free end and the conductive filament bundle (240) to extend towards the inner side of the ring body (100) so as to enable the end part of the conductive filament bundle (240) to be abutted against the surface of the shaft body; The elastic conductive support is integrally formed, the fixed end is a jogged part (210) formed by folding, a positioning part (111) matched with the jogged part (210) is arranged in the ring body (100), and the jogged part (210) is fixed in the positioning part (111); the sealing device further comprises sealing covers (300) arranged on two sides of the ring body (100), wherein a plurality of embedded blocks (310) which are attached to the inner edge of the mounting cavity (110) are arranged on the inner edge of the sealing cover (300); A damping block (311) is arranged on the surface of the embedded block (310), and the damping block (311) is elastically attached to the corresponding surface of the elastic conductive bracket; The ring body (100) is provided with a plurality of through holes (120), and the sealing cover (300) is provided with mounting holes (320) with the same number and positions as the through holes (120); An adjusting component (400) for adjusting the bonding pressure between the damping block (311) and the corresponding surface of the elastic conductive bracket is arranged in the through hole (120) and the mounting hole (320).
  2. 2. A modular conductive ring as set forth in claim 1 wherein said channels (112) are eccentric at an angle of 0-45 degrees.
  3. 3. A modular conductive ring as set forth in claim 1 wherein said conductive filament bundles (240) are metallized carbon fiber bundles and have arcuate contact surfaces (241) on the end surfaces thereof that contact the shaft.
  4. 4. A modular electrically conductive ring as set forth in claim 1, wherein said adjustment member (400) comprises a bolt (410), a spring (420) and a threaded sleeve (430); The end surface of the bolt (410) is in threaded engagement with the inner wall of the threaded sleeve (430).
  5. 5. The combined conducting ring according to claim 4, wherein the spring (420) is sleeved outside the bolt (410) and the threaded sleeve (430), and the spring (420) is positioned inside the through hole (120); both ends of the spring (420) are respectively elastically abutted against the inner walls of the two sealing covers (300).
  6. 6. A modular conductive ring as set forth in claim 1 wherein said cover (300) has a plurality of pin holes (330) formed therein for inserting a positioning tool, said pin holes (330) being in communication with said mounting chamber (110).
  7. 7. A combined type conductive ring as set forth in claim 6, wherein said pin hole (330) is provided corresponding to the outside of the junction of the elastic portion (220) of the elastic conductive bracket and the free end.
  8. 8. The assembling method of the combined conductive ring is characterized by comprising the following steps of: s1, providing the components of the combined conductive ring and the positioning pin (331); s2, the conductive brush (200) is assembled into the mounting cavity (110) of the ring body (100), and the elastic part (220) of the conductive brush (200) is compressed to a preset state; s3, assembling the sealing cover (300), and inserting the positioning pin (331) into the pin hole (330) of the sealing cover (300) to maintain the compression state of the elastic part (220); And S4, pulling out the positioning pin (331) to enable the elastic part (220) to release the pretightening force to push the conductive wire bundle (240) to abut against the surface of the shaft body.

Description

Combined conducting ring and assembly method thereof Technical Field The invention relates to the technical field of conducting rings, in particular to a combined conducting ring and an assembly method thereof. Background The conducting ring is usually arranged on the motor shaft and is close to the end cover, the main body of the conducting ring is a metal ring, the conducting ring is sleeved on the periphery of the motor shaft, the conducting brush is fixed on the inner side of the conducting ring and comprises conducting fibers, when the motor shaft rotates, the conducting fibers are kept in contact with the motor shaft, and the conducting fibers are grounded through the conducting brush, so that the current of the motor shaft is discharged. In the prior art, CN116799580A discloses a conducting ring (hereinafter referred to as prior art 1), which comprises a ring body and a conducting brush, wherein the ring body is provided with a mounting groove along the circumferential direction, the conducting brush comprises a fixing sleeve and a conducting fiber bundle, the mounting groove is used for mounting the fixing sleeve, the fixing sleeve comprises a sleeve body, a connecting part is arranged on the sleeve body, a connecting hole is arranged on the connecting part, the ring body is provided with two end faces which are opposite in the axial direction, the mounting groove is formed on the end face of the ring body, the mounting groove is provided with an end face notch on the end face of the ring body and an inner peripheral face notch on the inner peripheral face of the ring body, the end face of the ring body is also provided with a fastener mounting hole at the edge of the end face notch, after the sleeve body of the fixing sleeve is mounted in the mounting groove, the fastener mounting hole corresponds to the connecting hole so as to fasten the fixing sleeve on the ring body through a fastener, the conducting brush can be dismounted and replaced directly after the conducting fiber is severely worn, and the maintenance operation is convenient. In the prior art 1, the installation and fixation mode of the conductive fiber bundles is still fixed by adopting the fastener, so that the assembly difficulty of the conductive brush is increased, the assembly efficiency is lower, the structural complexity of the ring body is also increased for the ring body, secondly, in the actual application process of the conductive fiber bundles in the prior art 1, the contact part of the conductive fiber bundles and the surface of the motor shaft is in line contact, when the motor shaft is in motion, the rotation of the motor shaft drives the conductive fiber bundles to deviate, compensation measures for abrasion of the conductive fiber bundles are not adopted, poor contact is finally caused between the conductive fiber bundles and the motor shaft, and the conduction effect and the conduction stability of the conductive fiber bundles are not guaranteed. Secondly, chinese patent publication No. CN110854637A discloses a conductive slip ring (hereinafter referred to as prior art 2) which comprises a shell, wherein a stator is arranged in the shell, the stator is connected with a rotor through a bearing, a plurality of conductive rings are uniformly distributed on the rotor, a plurality of conductive wires which are respectively in one-to-one correspondence with the conductive rings are arranged on the stator, one end of each conductive wire is in sliding contact with each conductive ring, the other end of each conductive wire is spirally bent into a spring structure and then fixedly connected with the stator, an insulating ring is arranged between every two adjacent conductive rings, the insulating rings are fixedly connected onto the rotor, an annular groove is formed in each insulating ring, a plurality of isolation plates which are respectively in one-to-one correspondence with the insulating rings are arranged on the stator, one side of each isolation plate is fixedly connected onto the stator, and the other side of each isolation plate extends into the annular groove and is in sliding fit with the annular groove. The spring structure can provide thrust for the conductive wire, so that the conductive wire is in real time and closely contacted with the conductive ring, the abrasion loss is automatically compensated, and the service life is prolonged. In the prior art 2, the spring is adopted as the wear compensation member, so that the defect of lack of wear compensation in the comparison document 1 can be overcome, but the compensation members such as the spring belong to an additionally added structure, and the conductive ring is additionally provided with a compensation member assembly process in the assembly process, so that the structural complexity and assembly difficulty of the conductive ring are also increased, the assembly efficiency is reduced, and in the prior art 2, the wear compensation is realized only through