JB/T 7085.4-1993 Guidelines for stator and rotor winding process of series-excited motors for power tools Part 4 Single-fold winding process for rotors JB/T7085.4-1993 Standard download decompression password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
Guidelines for stator and rotor winding process of series-excited motors for electric tools Part 4 Rotor single-fold winding process
1 Subject content and scope of application
JB/T7085.4-
This standard specifies the technical requirements, process equipment, process methods and quality inspection for the rotor single-fold winding process of series-excited motors for electric tools.
This standard applies to the rotor single-fold winding process of series-excited motors for electric tools. 2 Reference standards
GB3883.1 Safety of handheld electric tools Part 1 General requirements. GB2900.1 Electrical terminology Basic terminology. GB2900.25 Electrical terminology Motor.
3 Terms
The terms and terms of this standard comply with the provisions of GB2900.1 and GB2900.25. The following terms and terms are only applicable to this standard. 3.1. Rotor single-stack winding
The traditional method of rotor winding, when winding, the rotor core rotates around the vertical line of the midpoint of its axis, and the wire is wound into a pair of slots. After winding a pair of slots, rotate one slot and then wind it. Winding in this way until the rotor rotates one circle is completed. This is also called V-type winding. 3.2 Rotor winding machine
A rotor winding machine that can rotate the rotor core around the vertical line of the midpoint of its axis to wind the wire into a pair of slots. 3.3 Sliding wire mold
In the rotor winding machine, the component that guides the wire to slide into the rotor core slot. 3.4 Rotor to be wound
The rotor to be wound is the rotor core with slot insulation and end plates installed. 4 Equipment
4.1 General requirements
The equipment used for rotor single-stack winding should be a rotor winding machine that meets the corresponding standards. 4.2 Equipment integrity
The rotor winding machine should include a rotating mechanism, a wire slide die, a counting device, a brake device and a wire clamping mechanism. 4.3 Wire slide die
The shape of the wire slide die should enable the wire to slide smoothly into the rotor core slot, and the maximum allowable value of its surface roughness parameter Ra is 0.1um. 5 Material preparation
5.1 Enameled wire and slot insulation materials must meet the corresponding standards and undergo acceptance inspections according to the test methods specified in the corresponding standards. 5.2 The rotor core should meet the requirements of the drawings. 5.3 The size and placement of slot insulation should meet the requirements of the drawings and meet the requirements of Article 26.1 of GB3883.1. Approved by the Ministry of Machinery Industry on October 8, 1993
Implemented on January 1, 1994
JB/T7085.4-1993
5.4 The model and wire gauge of the enameled wire should meet the requirements of the drawings. 5.5 The insulating end plate should be smooth and flat, without any bending, and fit well with the core. 6 Winding preparation
6.1 Assembly fixture
Assemble the corresponding fixture according to the rotor specifications. 6.2 Placement of enameled wire
The enameled wire should be placed vertically in the protective barrel to prevent it from being entangled. The enameled wire should be passed through a clamping mechanism to maintain a certain tension. Enameled wires of different colors can be selected as needed. 6.3 Preset count value
Adjust the setting switch or hanging wheel of the counting device to preset the required count value. 6.4 Equipment inspection
Check the operation of the rotor winding machine, whether the remaining car device is normal, and whether the count value is accurate. 7 Winding
7.1 Clamp the rotor to be wound on the frame of the winding machine so that the end with the commutator pressed on it faces the wire hook on the frame, slide the wire mold close to the rotor, and insert the positioning pin into the rotor slot.
7.2 Wind the enameled wire on the wire hook of the frame. The number of enameled wires shall be as required by the drawing. 7.3 Start the drive motor and wind multiple enameled wires into a pair of slots. The machine will stop automatically when the function reaches the specified value. Hang the enameled wire on the wire hook and continue winding the second pair of slots. 7.4wwW.bzxz.Net
After winding 3 or 4 pairs of slots, cut the enameled wire at the wire hook and twist the two wire ends of the same pair of slots together and twist them at the notch of the starting slot. 7.5
Continue winding according to the steps of 7.2 to 7.5 until the winding is completed. 7.6
7.7 For the rotors that have completed the winding, arrange the slot insulation, insert the slot wedge, and judge the beginning and end of each coil according to the color of the wire end or use the indicator light, and twist the beginning and end of the two adjacent coils together according to the requirements of the drawing, and embed them into the commutator slot of the commutator. Finally, at the end of the commutator, tie the enameled wire with nylon wire and cut off the excess part of the wire end. 8 Quality disk inspection
Number of inspections
To ensure the quality of the rotor winding, the rotor should be inspected twice, once after spot welding, and once after dripping paint and dynamic balancing.
8.2 Inspection plan
Use the armature tester to detect open circuit, disconnection, wrong connection and withstand voltage test, and use the turn-to-turn tester to perform pulse voltage test, and implement full inspection.
Additional instructions:
This standard is proposed and managed by the National Electric Tool Standardization Technical Committee. This standard is drafted by the Shanghai Electric Tool Research Institute of the Ministry of Machinery Industry. The main drafters of this standard are Huang Zhiqiang and Li Jun57
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