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- Electromagnetic clucthes and brakes
Electromagnetic clucthes and brakes
Electromagnetic clucthes and brakes
The document discusses two primary methods for torque transmission: friction (clutches) and frontal toothing (couplings). Electromagnetically controlled clutches are used for coupling rotating systems with different speeds, while tooth-type couplings require minimal relative motion. For high dynamic work or frequent operations, lubrication is recommended to dissipate heat. In cases of power loss or safety interventions, thrust-spring brakes, clutches, or couplings are advised, available in dry or lubricated versions. Precision positioning is ensured by dry-operating, zero-play, thrust-spring brakes, particularly in CNC machinery and robotic applications.
Selection of brakes, clutches, or couplings should consider machine type, lubrication, control type, available space, maximum torque, and operational frequency. Essential technical data include motor type, power, RPM, intervention frequency, inertia, and acceleration or deceleration times. Formulas for calculating moments of inertia and acceleration are provided, emphasizing the importance of not exceeding specified technical values.
Detailed specifications for various electromagnetic clutches and brakes, including disk-type, spring-loaded, and tooth-type variants, are included. Guidance on calculating engagement moments and selecting appropriate units based on technical requirements is provided.
Specific oil types, such as AGIP OTE 32 and ESSO TERESSO 32, are recommended for electromagnetic disk-type clutches to ensure optimal performance.
Hole and key dimensions are specified according to DIN 6885 Sheet 2, with detailed measurements for various sizes.
The document serves as a comprehensive guide for selecting and implementing electromagnetic clutches and brakes, emphasizing precise calculations and adherence to technical specifications for optimal performance and safety.
When the hub length exceeds 10/11 times the standard keyway width, a counterbore of appropriate length and diameter is required. Orders must specify hole or shaft dimensions, key-slot dimensions, and counterbore side if different from the standard.
These clutches are designed in various forms to solve application problems, including rotating and fixed-electromagnet series. Automatic disk-wear take-up is a feature of both types.
Clutches conform to VDE 0580 norms and operate on a standard 24 V DC power supply, with other voltages available on request.
Proper assembly and lubrication are crucial for clutch longevity. High-quality mineral oil is recommended for lubrication.
The document provides detailed technical specifications and descriptions of various electromagnetic tooth-type couplings and brakes, including their design, functionality, and applications.
Specifications for electromagnetic tooth-type spring-loaded couplings and brakes include torque, RPM limits, power, and weight for different sizes.
A parts list for electromagnetic brakes details components such as the magnet cup, toothed armature, toothed cover, toothed hub, spring, coil, key, and safety rings.
Instructions for mounting the electromagnetic clutches and brakes emphasize proper installation to ensure longevity and performance.
The document highlights the advantages of four pole face electromagnetic single-disk clutches and brakes, such as high transmittable torque, compact design, low inertia, and long lifespan.
The document discusses the applications of these clutches and brakes, including their use in PTO assemblies for transferring torque in vehicles and machinery.
The document details various models of electromagnetic single-disk clutches and brakes, including their technical specifications such as torque, RPM limits, build-up and decay times, power consumption, and weight.
The clutches and brakes are designed for dry operation and are suitable for space-constrained environments due to their compact size.
The clutches comply with VDE 0580 norms and operate on a standard 24 V DC power supply, with options for different voltages upon request.
Instructions for mounting emphasize avoiding contact of lubricants with friction surfaces.
A detailed parts list for each series identifies components such as magnet cups, friction linings, armatures, rotors, coils, rivets, brackets, and bearings.
The clutch-brake units are preassembled, featuring a static magnet-type clutch and a brake, designed for rapid and precise engagement and disengagement.
This section provides detailed specifications for various models of electromagnets, including their force, wattage, and weight.
Details on brush holders for clutches and couplings are provided, including specifications for wet and dry running models.
This section outlines the general features of electromagnetic clutches and brakes, which operate on 24 V DC with a tolerance of 15%.
Various power supply models are described, including their input and output voltages, current capacities, and adjustment features.
Specifications for microswitches and inductive sensors are provided, including their voltage, current, and protection ratings.
This section highlights customized electromagnetic products, such as multi-disk clutches and brakes, designed for specific applications.
Guidelines for selecting and sizing MWM products are provided, including considerations for the principle of use, type of command, and design base.
Catalog excerpts
Anni di esperienza nel settore ci hanno consentito di conseguire considerevoli risultati, sia nelle normali costruzioni che nelle applicazioni appositamente elaborate dal nostro Ufficio Tecnico allo scopo di risolvere particolari problemi e di soddisfare esigenze complesse. Siamo pertanto in grado di fornire anche gruppi completi monoblocco - cambi di velocità - invertitori - prese di forza, oltre che costruire innesti a frizione aventi caratteristiche diverse da quelle riportate dalle tabelle del presente catalogo. Our many years of experience in this field has permitted us to obtain considerable...
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INDICE INDEX FRIZIONI ELETTROMAGNETICHE LAMELLARI A PRESSIONE DI MOLLE ELECTROMAGNETIC DISK-TYPE SPRING LOADED CLUTCHES •EMC-N/L PARTI ACCESSORIE ACCESSORIES •DI •DE •MDF-N INNESTI ELETTROMAGNETICI A DENTINI ELECTROMAGNETIC TOOTH-TYPE COUPLINGS •EC/Z •EC/ZD •ECF/Z •ECF/ZD •ESB/Z •ESB/ZD •ESBR/Z •ESBG/Z FRENI ELETTROMAGNETICI A DENTINI ELECTROMAGNETIC TOOTH-TYPE BRAKES •EC/Z-F •EC/ZD-F •EBLF/Z •EBLF/ZD INNESTI A DENTINI A PRESSIONE DI MOLLE TOOTHE-TYPE SPRING-LOADED COUPLINGS •EC-N/Z •ESB-N/Z INNESTO A DENTI CON RINVIO O CON GIUNTO A PRESSIONE DI MOLLE TOOTH-TYPE SPRING-LOADED COUPLING WITH TRANSMISSION...
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INDICE INDEX FRIZIONI ELETTROMAGNETICHE MONODISCO ELECTROMAGNETIC SINGLE-DISK CLUTCHES •EMS FRENI ELETTROMAGNETICI MONODISCO ELECTROMAGNETIC SINGLE-DISK BRAKES •EMF •EMF/MD FRIZIONI E FRENI ELETTROMAGNETICI MONODISCO CON ARMATURA LAMELLA SINGLE-DISK ELECTROMAGNETIC CLUTCHES AND BRAKES WITH LAMINAR ARMATURE •ESAL •EMSL •EFAL •EMFL FRIZIONI ELETTROMAGNETICHE MONODISCO CON GIUNTO ELASTICO O RINVIO SINGLE-DISK ELECTROMAGNETIC CLUTCHES WITH FLEXIBLE COUPLING OR TRANSMISSION HUB •EMSG •EMSR GRUPPI FRIZIONE-FRENO MONOBLOCCO CLUTCH-BRAKE UNITS GFF: •A-A/P •FC-FA •FA-FC •FC-FC FRIZIONI ELETTROMAGNETICHE...
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SELEZIONE DEL PRODOTTO PRODUCT SELECTION INTRODUZIONE In generale, esistono due modi di trasmettere la coppia torcente: per attrito (frizioni) oppure per mezzo di dentini frontali (innesti). In general, we have two ways of transmitting torque: through friction (clutches) or through a frontal toothing (couplings) Le frizioni a comando elettromagnetico sono in grado di accoppiare due cinematismi meccanici rotanti con velocità relative diverse (accoppiamenti dinamici). Gli innesti a dentini possono essere comandati come le frizioni, ed anche loro servono a collegare due cinematismi meccanici rotanti...
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SELEZIONE DEL PRODOTTO PRODUCT SELECTION MOMENTI Mi = Momento inseribile innesto o freno (a catalogo) Ms = Momento statico (coppia max. trasmissibile) Mic = Momento di inserzione (teorico da calcolo) Mt = Momento costante di trasmissione (o coppia) del carico Ma = Momento di accelerazione sotto carico, 0 a o da a giri Mi = Engagement coupling or braking moment (per catalog) Ms = Static moment (maximum transmittable couple) Mic = Engagement moment (theoretical torque) Mt = Constant transmitted load moment (or couple) Ma = Acceleration moment under load, 0 to or to R.P.M. Poiché nella fase di innesto...
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SELEZIONE DEL PRODOTTO PRODUCT SELECTION Per calcolare il momento d’inerzia di corpi rotanti intorno al loro asse si ha: = The formula to calculate the moment of inertia rotating about its axis is the following: +, Il momento d’inerzia per cilindri pieni con diametro esterno # e lunghezza $ in cm si ottiene con: dove: % = Peso specifico in g/cm3 In the case of a massive cylinder of diameter # and length $, both expressed in cm, we have: where: % = specific weight in g/cm3 Il momento d’inerzia di masse con movimento rettilineo di un corpo a velocità & per mezzo di un albero ruotante alla velocità...
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SELEZIONE DEL PRODOTTO PRODUCT SELECTION Calcolo del tempo di accelerazione o decelerazione Da 0 a Calculation of acceleration or deceleration time dove: Mi = Momento inseribile innesto o freno (catalogo) Mic = Momento dovuto al carico (da calcolo) Mi – Mic per accelerazione Mi + Mic per decelerazione where: Mi = Engagement coupling or braking moment (catalogue) Mic = Moment due to the load (as calculated) Mi – Mic due to acceleration Mi + Mic due to deceleration Se l’innesto avviene a vuoto o con carico trascurabile si ha: If coupling occurs under little or no load, we have: Essendo a volte...
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SELEZIONE DEL PRODOTTO PRODUCT SELECTION TABELLA OLII Per frizioni elettromagnetiche lamellari la tipologia consigliata è: For electromagnetic disk-type clutches the recommended oil type is: AGIP ESSO SHELL CASTROL MOBIL OTE TERESSO TURBO PERFECTO DTE DIMENSIONI FORI E CHIAVETTE NOTA: nei casi in cui la lunghezza del mozzo risulti superiore a 10/11 volte la larghezza della cava per chiavetta standard, verrà praticato uno scarico di lunghezza e diametro adeguati NOTE: whenever the hub length will be greater than 10/11 times the standard keyway width, a counterbore will be made of proper length...
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SELEZIONE DEL PRODOTTO PRODUCT SELECTION Posizione standard scarico per serie: ESBR/Z; ESBR-N/Z; EMSL/DF-R; EMSR Standard counterbore position for series: ESBR/Z; ESBR-N/Z; EMSL/DF-R; EMSR Posizione standard scarico per serie: ESBG/Z; ESBG-N/Z; EMSL/DF-G; EMSG Standard counterbore position for series: ESBG/Z; ESBG-N/Z; EMSL/DF-G; EMSG
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SELEZIONE DEL PRODOTTO PRODUCT SELECTION COMPOSIZIONE DEL CODICE DEI PRODOTTI PRODUCT CODE COMPOSITION SERIE SERIES GRANDEZZA SIZE SERIE/MODEL CODICE/CODE ESB □□□ 05.04.□□□.01 Numero identificazione versione Version ID No. GRANDEZZA (ricavabile dalla prima colonna della tabella) SIZE (obtainable from the first column of table) Numero identificazione serie Series ID No. Numero identificazione prodotto Product ID No. Frizione elettromagnetica lamellare Serie ESB ESB 134 Codice: 05.04.134.01 2. Innesto elettromagnetico a dentini con anello collettore e armatura dentata Serie EC/ZD EC 114/ZD Codice:...
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PNEUMATIC CLUTECHES AND BRAKES100 Pages
