CN-224218190-U - Sealing structure of winding motor rotor winding outgoing line

Abstract

The utility model relates to the field of insulation protection, and particularly discloses a sealing structure of a winding motor rotor winding outgoing line, which comprises an elastic protective sleeve, wherein the protective sleeve comprises a vertical unit and a horizontal unit, the horizontal unit is integrally formed at the upper part of the vertical unit, the vertical unit comprises an insulating pipe coating part, a fastening bolt coating part and a conductive screw coating part, the fastening bolt coating part is integrally formed on the insulating pipe coating part, the fastening bolt coating part is in a ladder shape, the conductive screw coating part is integrally formed on the fastening bolt coating part, the conductive screw coating part is in a ladder shape, and the horizontal unit is positioned on the side surface of the fastening bolt coating part. The utility model aims to solve the technical problem of how to seal and insulate.

Inventors

• MENG XIANGHUI
• WANG KAI
• SUN RUI

Assignees

• 邯郸金隅太行水泥有限责任公司

Dates

Publication Date

20260508

Application Date

20250722

Claims (5)

1. 1. A sealing structure of a winding motor rotor winding outgoing line is characterized by comprising an elastic sheath pipe, wherein the sheath pipe comprises a vertical unit and a horizontal unit, the horizontal unit is integrally formed at the upper part of the vertical unit, the vertical unit comprises an insulating pipe coating part, a fastening bolt coating part and a conductive screw coating part, the fastening bolt coating part is integrally formed on the insulating pipe coating part, the fastening bolt coating part is in a step shape, the conductive screw coating part is integrally formed on the fastening bolt coating part, the conductive screw coating part is in a step shape, and the horizontal unit is positioned on the side surface of the fastening bolt coating part.
2. 2. The sealed structure of claim 1, wherein an isolation layer is disposed on the inner wall of the lower portion of the fastening bolt cladding portion, the isolation layer is stepped, the upper end of the isolation layer extends to the lower portion of the conductive screw cladding portion, a circular groove is disposed on the isolation layer, and the circular groove is communicated with the horizontal unit.
3. 3. The sealed structure of the rotor winding outgoing line of the wound motor according to claim 2, wherein a filling strip is wound in the isolating layer, one end of the filling strip is positioned at the inner lower part of the isolating layer, and the other end of the filling strip penetrates through the circular groove and the horizontal unit and extends out of the sealed structure.
4. 4. A seal structure for a wound rotor winding lead-out wire of a wound motor according to claim 3, wherein the fastening bolt coating portion, the conductive screw coating portion and the horizontal unit are all spread apart when the filler strip is wound in the insulating layer.
5. 5. The sealed structure of claim 4, wherein insulating oil is coated in the isolating layer.

Description

Sealing structure of winding motor rotor winding outgoing line Technical Field The utility model relates to the field of insulation protection, and particularly discloses a sealing structure of a winding motor rotor winding outgoing line. Background The outgoing line of the winding type motor rotor winding is connected to the collecting ring through the conductive screw rod to form a closed loop. The conductive screw rod is fastened and connected with the outgoing line of the rotor winding through bolts. Because the bolt fastening points are exposed conductors, carbon powder and copper powder which are worn and shed by the carbon brush are attached to the exposed fastening bolt conductors after the winding motor runs for a long time, so that the inter-phase insulation resistance of the outgoing line of the rotor winding is reduced, an inter-phase short circuit fault is formed, and the potential safety hazard of running exists. Disclosure of utility model Therefore, the utility model aims to provide a sealing structure of a winding motor rotor winding outgoing line, so as to solve the technical problem of how to seal and insulate. In order to achieve the above purpose, the present utility model provides the following technical solutions: The sealing structure of the winding motor rotor winding outgoing line comprises an elastic protective sleeve, wherein the protective sleeve comprises a vertical unit and a horizontal unit, the horizontal unit is integrally formed on the upper portion of the vertical unit, the vertical unit comprises an insulating pipe coating portion, a fastening bolt coating portion and a conductive screw coating portion, the fastening bolt coating portion is integrally formed on the insulating pipe coating portion, the fastening bolt coating portion is in a step shape, the conductive screw coating portion is integrally formed on the fastening bolt coating portion, the conductive screw coating portion is in a step shape, and the horizontal unit is located on the side face of the fastening bolt coating portion. The sheath pipe in this scheme is including vertical unit and horizontal unit, and wherein vertical unit can cladding conductive screw rod, fastening bolt and insulating tube, makes its sealed insulation, and horizontal unit can cladding rotor winding out the group lead-out wire, makes its sealed insulation. The conductive screw rod coating part and the fastening bolt coating part are in a ladder shape and just profile-match with the appearance of the conductive screw rod and the fastening bolt, so that the conductive screw rod coating part and the fastening bolt coating part can be tightly coated on the screw rod and the bolt. Optionally, be provided with the isolation layer on the lower part inner wall of fastening bolt cladding portion, the isolation layer is echelonment and its upper end extends to the lower part of electrically conductive screw cladding portion, be provided with the circular slot on the isolation layer, circular slot and horizontal unit intercommunication. By adopting the scheme, insulating oil and filling strips can be filled in the isolating layer after the isolating layer is arranged. Optionally, a filling strip is wound in the isolation layer, one end of the filling strip is positioned at the inner lower part of the isolation layer, and the other end of the filling strip penetrates through the circular groove and the horizontal unit to extend out of the sealing structure. Optionally, the fastening bolt cladding, the conductive screw cladding and the horizontal unit are all spread apart when the filler strip is wound within the spacer layer. The filler strip has the function of expanding the whole sealing structure to enlarge the whole sealing structure, and after the sealing structure is completely installed on the outgoing line of the rotor winding, the filler strip is pulled out, so that the winding outgoing line can be tightly covered by the whole sealing structure in a contracted and undisturbed state. Optionally, insulating oil is applied within the barrier layer. The insulating oil can play a role in lubrication, is more convenient and quicker when the filling strips are drawn out, and can play a role in insulation protection. The working principle and the beneficial effects of the scheme are as follows: In this scheme, improve prior art's coating insulating seal for sheath insulating seal, sheath adopts elastic material to make, is provided with the filler strip in the sheath, and the filler strip can strut sheath, and filler strip texture is harder, is convenient for mould sheath, and the convenience is installed it on the winding lead, can take out the filler strip after the installation is accomplished, does not have the expansion of filler strip at this moment, and the sheath contracts fast and pastes tightly on the winding lead. Additional advantages, objects, and features of the utility model will be set forth in part in the description which fo