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A kind of maintenance technology of motor rotor slip ring

A motor rotor and slip ring technology is applied in the field of motor rotor slip ring maintenance technology, which can solve the problems of waste of resources, loss of parts, pitting, pits, etc., and achieve the effects of simple manufacturing process, qualified maintenance products, and reduced production costs.

Active Publication Date: 2021-04-30
三立(厦门)汽车配件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the motor runs for a period of time, due to long-term sliding friction between the slip ring and the brush, the surface of the slip ring will have pits, pits, etc., which are worn out parts. In severe cases, the motor cannot be used normally and needs to be repaired and replaced.
In the motor remanufacturing process, due to the diversity of motor brands, the types of slip rings increase accordingly, and a large number of parts need to be equipped. In addition, the replacement of slip rings in the current technology is inconvenient, which increases the difficulty of replacing slip rings. If the entire Rotor replacement causes waste of resources

Method used

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  • A kind of maintenance technology of motor rotor slip ring
  • A kind of maintenance technology of motor rotor slip ring

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Example 1: Direct maintenance of 101211 series automobile alternator rotor slip rings of Denso Corporation of Japan.

[0036] Check the diameter of the slip ring with a caliper of Φ14mm. The diameter of the slip ring is larger than Φ14mm and the size after cutting is larger than Φ13.8mm. Turn the rotor directly until the slip ring runout is less than 0.048mm, and the size after cutting is greater than Φ13.8mm.

Embodiment 2

[0037] Example 2: Maintenance of 101211 series automobile alternator rotor slip ring sleeves and copper sleeves of Denso Corporation of Japan.

[0038] Check the diameter of the slip ring with a caliper of Φ14mm. The diameter of the slip ring is smaller than Φ14mm or the diameter of the slip ring after cutting is smaller than Φ13.8mm. When there is no corresponding slip ring accessory, add a copper sleeve to the sleeve. The steps are as follows:

[0039] (1) Make the slip ring copper sleeve, the outer diameter is Φ14.9-15.02mm, and the inner diameter is Φ13.16-13.18mm.

[0040] (2) The matching size of the turning rotor slip ring is 0.02-0.04mm larger than the inner diameter of the copper sleeve of the slip ring, and the roughness Ra value is not greater than 3.2um.

[0041] (3) Dip the turned rotor slip ring evenly in rosin water, and then press the copper sleeve into the turned rotor slip ring with tooling. Slip rings consist of bakelite fixed to the rotor shaft and coppe...

Embodiment 3

[0045] Example 3: The rotor slip ring of Bosch 0120 series automobile alternator in Germany is replaced with a slip ring of small size.

[0046] Such as Figure 1-2 Shown:

[0047] (1) Removal of the old slip ring: After the rotor is removed from the bearing, fix it on the vise, remove the oil at both ends of the slip ring 1, and chisel the longitudinal surface of the slip ring 1 at the position away from the lead wire 3 with a chisel. Then untie the soldering point of the lead wire 3 with an electric soldering iron and remove the slip ring 1, and remove the glue and insulating tape on the lead wire 3, and do not break the lead wire 3.

[0048] (2) Installation of slip ring 1: Before installation, check whether the glass fiber tube on the outer layer of the lead wire is damaged, replace the damaged glass fiber tube with a new one, and stick the glass fiber tube and rotor claw end surface 4 with AB glue. Grind the slip ring position of rotor shaft 2 clean, apply epoxy resin, ...

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Abstract

The present invention relates to the field of motor rotor remanufacturing, and discloses a motor rotor slip ring maintenance process, including the following steps: S1, inspection before maintenance: detecting whether the slip ring to be repaired meets the conditions for direct maintenance, and if it meets the conditions for direct maintenance, perform direct maintenance , otherwise go to step S2. S2. Replace the slip ring or add a copper sleeve. Adding the copper sleeve includes the following steps: Q1, making the copper sleeve, Q2, turning the slip ring, Q3, pressing the copper sleeve and checking, Q4, soldering and checking. S3. After replacing the new slip ring or adding the copper sleeve in step S2, perform turning, and turn the outer diameter to the outer diameter standard of the slip ring of the corresponding brand. In summary, the present invention realizes the maintenance of the slip ring through the process of turning the slip ring sleeve and adding a copper sleeve or replacing the slip ring, avoiding the maintenance method of replacing the entire rotor, the overall manufacturing process is simple, and the slip ring after repair meets the product standard. And greatly reduce production costs.

Description

technical field [0001] The invention relates to the field of motor rotor remanufacturing, in particular to a motor rotor slip ring maintenance process. Background technique [0002] The slip ring is fixed on the shaft of the motor and rotates with the shaft. The brush in the wound motor is a conductive component that makes sliding contact with the slip ring to form an electrical connection. The brush acts on the slip ring as a sliding contact body for importing and exporting current. In order to ensure continuous contact between the brush and the slip ring, there is a certain pressure between the brush and the slip ring. After the motor runs for a period of time, due to long-term sliding friction between the slip ring and the brush, the surface of the slip ring will have pits, pits, etc., which are worn out parts. In severe cases, the motor cannot be used normally and needs to be repaired and replaced. . In the motor remanufacturing process, due to the diversity of motor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K15/02H02K15/00
CPCH02K15/0006H02K15/02
Inventor 吴冬鸣黄裕梗林卫平苏五良吕金龙林溪龙
Owner 三立(厦门)汽车配件有限公司
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