Komponenterne i en skinnemotor

Oversigt

Motoren i et jernbanekøretøj er ligesom “hjerte” af hele transmissionssystemet, med en kompleks og præcis struktur. Hver af nøglekomponenterne indeni, såsom statorens trykring, kommutator trykring, bund- og endedæksel, har en vigtig rolle at spille og spiller en uerstattelig rolle.

Stator trykring

Statortrykringen lyder som et meget professionelt udtryk, men faktisk, dens funktion er ret direkte. I motoren, statorkernen er stablet op af en bunke siliciumstålplader. Disse silicium stålplader har fremragende magnetisk ledningsevne og kan koncentrere og lede magnetfeltet meget godt. Men disse plader alene er ikke nok. De skal presses stramt, så magnetfeltet kan arbejde bedre og mere effektivt. På dette tidspunkt, statorpresseringen er praktisk. Det er som en stor klemme, fastspænder statorkernen for at forhindre, at siliciumstålpladerne bliver løse.

Nogle statortrykringe er designet meget smart, og der er tilføjet slidser på indersiden. Hvad bruges denne slot til? Faktisk, det er til varmeafledning. Motorens temperatur vil stige, når den kører. Efter tilføjelse af slot, varmeafledningsarealet øges, ligesom at åbne et lille vindue til motoren, ventilations- og varmeafledningseffekten er bedre, og motoren er ikke så let at overophede.

Kommutator trykring

Apropos kommutatorens trykring, vi skal først nævne kommutatoren. I en jævnstrømsmotor, kommutatoren er en nøglekomponent. Den er ansvarlig for at konvertere den vekselstrøm, der genereres i ankerviklingen til en jævnstrøm, så rotoren kan fortsætte med at rotere. Kommutatoren er sammensat af mange kommutatorsegmenter, which must be fixed and cannot move around. På dette tidspunkt, the commutator clamp comes on the scene. Its task is to press these commutator segments tightly to prevent them from deforming due to vibration or thermal expansion and contraction.

There are several forms of commutator clamps, such as V-shaped clamps and tight-ring clamps. The V-shaped clamp has a V-shaped groove that can firmly clamp the commutator segment group; the tight-ring clamp uses a hoop to clamp the commutator segment group tightly. Regardless of the form, the purpose is to keep the commutator stable during operation and ensure the accuracy of the current conversion.

Motor base

The motor base sounds like an inconspicuous thing, but it is actually very important. The base is the supporting component of the motor. It must firmly fix the motor and provide an installation interface to facilitate the connection between the motor and other systems. The design of the base must take into account the installation requirements of the motor, such as the location of the mounting holes, the size of the interface, osv.

The material selection of the base is also particular, and the common ones are cast iron and steel plate. The cast iron base has good casting performance and a good vibration reduction effect, which can reduce the vibration and noise of the motor during operation; the steel plate base has high strength and is easy to process, which is suitable for use in places where high-strength support is required. Selvfølgelig, the design of the base must also consider factors such as heat dissipation, ventilation and protection to ensure that the motor can run stably.

Endedæksel

The end cover, som navnet antyder, is the cover at both ends of the motor. It is mainly responsible for sealing the motor to prevent the contents from leaking out. Også, it protects the inside of the motor from the influence of the external environment, such as waterproofing and dustproofing. The end cover must also fix key components such as bearings to ensure that the motor can operate normally.

The design of the end cover must also take into account many factors. F.eks, heat dissipation, some end covers will be designed with heat dissipation holes or heat sinks to help the motor dissipate heat better; sealing is also very important, and the end cover must use a sealing ring or sealant to seal the motor well to prevent external pollutants from entering. The material selection of the end cover must also consider factors such as strength and corrosion resistance to ensure the stable operation of the motor.

In terms of maintenance, the end cover must be checked regularly to see if there is any looseness or damage, especially the heat dissipation holes or heat sinks, which must be cleaned periodically to maintain heat dissipation performance. The sealing part must also be checked to see if the sealing ring or sealant is aged or damaged and replaced in time to ensure the sealing performance of the motor.