CN215497509U

CN215497509U - Paint scraper for motor winding

Info

Publication number: CN215497509U
Application number: CN202122208691.2U
Authority: CN
Inventors: 宋纯东; 郭成; 吴珉
Original assignee: Xinjiang Ddt Mutual Force Industrial Technology Co ltd
Current assignee: Xinjiang Ddt Mutual Force Industrial Technology Co ltd
Priority date: 2021-09-13
Filing date: 2021-09-13
Publication date: 2022-01-11
Anticipated expiration: 2031-09-13

Abstract

The utility model discloses a motor winding paint scraper, which comprises a long-strip-shaped cutting board, wherein a handle is installed at one end of the cutting board, semicircular notches are uniformly distributed in two long-edge board bodies of the cutting board respectively, and the diameters of the semicircular notches in the long-edge board bodies on the same side are arranged from large to small along the direction from the handle to the other end of the cutting board. Its structural cost is low, and the price is substantial, and is economical and durable, and is not fragile, and operation safety moreover, simple manufacture, on probation, improved painted efficiency of striking off greatly, reduced workman's intensity of labour.

Description

Paint scraper for motor winding

Technical Field

The utility model relates to a motor winding paint scraper which is used for scraping paint on a motor winding enameled wire.

Background

When the motor winding has insulation faults, such as winding grounding, turn-to-turn short circuit, partial discharge and the like, the motor winding needs to be rewound, and the whole process is called as motor rewiring. The motor repair must be performed according to the programmed steps: 1. recording the motor model, power degree, pole number, inner diameter, outer diameter, length and number of slots of a stator iron core before the old winding is removed; 2. recording a connection mode method of the windings, a coil inserting sequence of the windings, the perimeter and the number of turns of the windings and the wire diameter of the measurement enameled wire while removing the windings; 3. removing all the old windings, cleaning the wire slots, and cutting the insulating paper into pieces with proper sizes to be filled into the wire slots; 4. winding enameled wires according to the special wire diameter, the number of turns and the circumference of the recorded data; 5. starting to take off the line according to the recorded line taking sequence until the line is taken off, and then connecting to form a lead; insufficient wire length and wire breakage are observed in the winding, and particularly when the wire is wound between windings and a lead or winding, welding is allowed, but good contact, enough mechanical strength and smooth surface are ensured. The length of the insulating sleeve at the joint is more than 15mm compared with the insulating overlapping part of the wires. When winding, the wires should be carefully observed, if insulation damage exists or welding exists between the windings and the leads, the number of joints of the wires of the windings of the motor is not more than one in each coil, not more than two in each phase of coil, not more than four in each motor, and the joints are necessarily at the bevel edges of the ends. The enameled wire for motor winding mainly comprises a copper conductor and an insulating layer, and is formed by annealing and softening a bare copper wire, painting for multiple times and baking. When welding the wire between the winding and the lead wire or the winding, the paint skin on the enameled wire must be removed to ensure good contact between the wires.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a motor winding paint scraper which can quickly and effectively remove a paint skin on an enameled wire.

The technical scheme adopted by the utility model is as follows: the utility model provides a motor winding paint scraper, includes a rectangular shape cutting board, and the handle is being installed to cutting board one end, and two long plate body internal evenly distributed of cutting board are setting up semi-circular notch respectively, along following with the diameter of each semi-circular notch in the same one side long plate body the handle arrange from big to little towards the direction of the cutting board other end.

The common electrician knife is used for cleaning the paint scraping and cleaning at the paint skin joint on the enameled wire of the front winding. Electrician's sword knife face is the horizontality, and is little with the enameled wire contact surface on the one hand, scrapes the area less at every turn, and on the other hand leaks to scrape lacquer leather in-process part position and scrapes because of knife face horizontality, and it is unclean to go up the lacquer leather to winding enameled wire, often leads to doing over again to handle, scrapes lacquer just not very suitable especially in winding enameled wire batch. When the electric knife is used, the cutting edges with the same drift diameter are selected according to the size of the wire diameter of the motor winding (measured by a vernier caliper), and the cutting edges tightly clamp the enameled wire to scrape paint, so that the problems that the contact surface of the knife face of the electric knife and the enameled wire is small in horizontal state, the scraping area is small each time, and the enameled wire on the winding enameled wire is not cleanly treated due to part of positions in the process of scraping the enameled wire, so that rework treatment is often caused are solved. Its structural cost is low, and the price is substantial, and is economical and durable, and is not fragile, and operation safety moreover, simple manufacture, on probation, improved painted efficiency of striking off greatly, reduced workman's intensity of labour.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings.

Fig. 1 is a schematic front view of the present invention.

Detailed Description

A paint scraper for motor windings comprises a long-strip-shaped cutting board 2, wherein a handle 1 is installed at one end of the cutting board, semicircular notches 3 are respectively and uniformly distributed in two long-edge boards of the cutting board, and the diameters of the semicircular notches 3 in the long-edge boards on the same side are arranged from large to small along the direction from the handle 1 to the other end of the cutting board 2. I.e. the diameter of the semicircular recess 3 near the handle 1 is large and the diameter of the semicircular recess 3 near the other end of the cutting plate 2 is small.

Claims

1. The utility model provides a motor winding paint scraper, includes a rectangular shape cutting board, and the handle, characterized by are being installed to cutting board one end: the two long-edge plate bodies of the knife board are respectively and uniformly distributed with semicircular notches, and the diameters of the semicircular notches in the long-edge plate bodies on the same side are arranged from large to small along the direction from the handle to the other end of the knife board.