Dysgwch am atgyweirio cymudwyr

2022-04-23

(1) Cylched byr rhwng segmentau cymudadur
Mae'r cylched byr fel y'i gelwir rhwng y segmentau cymudadur yn golygu bod cysylltiad cylched byr rhwng dau segment cymudadur cyfagos ar y cymudadur. Cylched byr rhwng segmentau cymudadur. Bydd gwreichion mawr yn ymddangos ar wyneb y cymudadur; pan fydd y cylched byr yn ddifrifol, bydd tân cylch yn digwydd ar wyneb y cymudadur.

Mae atgyweirio'r cylched byr rhwng y segmentau cymudadur fel a ganlyn:
①Cleaning with slot cleaning sheet When the armature winding is burnt due to short-circuit fault, the fault point can be found by observation method. In order to determine whether the short-circuit fault occurs inside the winding or between the commutator segments, the winding wire head connected to the commutator segment should be disconnected, and then use a check light to check whether there is a short circuit between the commutator segments, such as on the surface of the commutator segment. If a short circuit is found, or the spark burns the scar, usually use the slot cleaning sheet shown in Figure 227 to scrape off the short-circuited metal chips, brush powder, corrosive substances, etc., until the check light is used to check that there is no short-circuit. And use mica powder and shellac or mica powder, epoxy resin and polyamide resin (650) to mix into a paste, then fill in the grooves and let it harden and dry.
② Glanhewch y rhigol V a chylch V y bloc cymudadur Os na ellir dileu'r cylched byr rhwng y sglodion ar ôl tynnu'r malurion allanol rhwng y sglodion yn ofalus. Ar yr adeg hon, rhaid dadosod y cymudadur, a rhaid glanhau rhigol V a chylch V y grŵp cymudadur yn ofalus. Cyn dadosod y cymudadur, lapiwch haen o bapur elastig gyda thrwch o 0.5 i 1 mm ar gylchedd allanol y cymudadur ar gyfer inswleiddio, a nodwch y lleoliad nam, ac yna gorchuddiwch y marw pentyrru, ac yna Cymerwch y cymudadur ar wahân. Gwiriwch ymhellach y diffygion rhwng y segmentau cymudadur, wyneb y rhigol-V a'r cylch V, a deliwch â nhw yn ôl gwahanol ddiffygion.
③ Amnewid taflenni mica rhwng taflenni Os na ellir dileu'r cylched byr rhwng taflenni trwy'r dull uchod, dim ond y taflenni mica y gellir eu disodli. Mae'r dull o ddisodli'r naddion mica rhyng-sglodion fel a ganlyn.
Rhowch y segment cymudadur datgymalu uchod ar y plât gwastad, marciwch y segmentau cymudadur diffygiol, ac yna ei glymu â chylch rwber, yna tynnwch y cylchyn gwifren ddur neu'r wifren wydr di-weft, a defnyddiwch adran A wedi'i hogi o'r llafn llifio llydan. yn cael ei fewnosod rhwng y darnau diffygiol, ar ôl llacio, mae'r darn cymudadur diffygiol yn cael ei dynnu allan, ac mae darn cymudadur newydd o'r un fanyleb â'r darn cymudadur diffygiol yn cael ei fewnosod.
After the commutator plate is replaced, use iron hoops (with thick cardboard inside) to fasten the commutator plate group. Heat the commutator block to 165℃±5℃, tighten the screws for the first time, and use the calibration lamp to check whether the short circuit between the blocks has been eliminated after cooling. If it is not eliminated, you should carefully find the cause of the failure or repeat the above work; if the short circuit between the chips has been eliminated, perform assembly.
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