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MOTOVARIO
Motovariators

Motovariators

Product catalog summary

Overview: This document provides comprehensive technical information on motovariators, including specifications, installation guidelines, and performance metrics. It is structured to assist in the selection, installation, and maintenance of motovariators.

Key Sections:

Symbols and Specifications: Defines key symbols used throughout the document and outlines the specifications for motovariators.
Operation and Selection: Details the operational principles of motovariators and provides guidance on selecting the appropriate variator based on service factors and application requirements.
Installation and Maintenance: Offers instructions for proper installation, including considerations for radial loads and lubrication. It also covers surface treatment specifications to ensure durability.
Performance and Dimensions: Provides detailed performance metrics and dimensional data for various models, including TXF/S, VH/VHA, and TXF/S+NMRV combinations.
Accessories and Electric Motors: Lists available accessories and compatible electric motors to enhance the functionality of the motovariators.
Sales Conditions: Outlines the terms and conditions related to the sale of motovariators.

Critical Information: The document emphasizes the importance of selecting the correct service factor and understanding the critical applications to ensure optimal performance and longevity of the motovariators.

Symbols and Terminology: This section provides a comprehensive list of symbols used in the document, along with their meanings in multiple languages. Key symbols include: P = Power (kW), M = Torque (Nm), n = Speed (RPM), i = Reduction ratio, F = Load (N), m = Weight (kg), f.s. = Service factor, 1 = Input shaft, 2 = Output shaft, r = Radial, a = Axial, s = Static, d = Dynamic, max = Maximum, min = Minimum.

Compliance and Standards: The document states that on request, the reducers can be manufactured in compliance with ATEX 94/9/CE standards, specifically 2GD T4 and 3GD T4.

Components and Functionality: This section describes the components of a motovariator and their functions. The motovariator consists of two sun races (fixed and adjustable), Belleville springs, shaft, two annulus races (fixed and adjustable), planet discs and their friction bearings, planet carrier, control handwheel, cam ring, and ball ring. The operation involves the planet discs rotating individually and collectively, with speed variation achieved by adjusting the handwheel. It is crucial that adjustments are made while the motor is running.

Choosing a Variator: The performance curve of a motovariator is divided into two parts: constant torque and decreasing torque. Key considerations include: The motor's performance should not exceed the variator's constant output torque. At higher RPMs, the variator can utilize the full motor nominal power. Service factor checks are necessary when using a motorvariator with a gear reducer. The maximum number of starts should not exceed 5-10 per minute. For applications within the decreasing torque section, motor output torque checks are unnecessary, but they are mandatory if the application involves the constant torque section.

Specifications and Applications: The document outlines the use of gear reducers and variators for various applications categorized into three groups (A, B, C) based on the type of machinery and materials involved. Group A includes light materials and machinery like conveyors and small agitators. Group B covers medium-duty applications such as feeders and mixers. Group C involves heavy-duty applications like shears and presses.

Critical Applications: It is crucial to consult technical services for specific mounting positions or input speeds. Avoid using gear reducers as multipliers or in hazardous environments, such as those with high inertia, extreme temperatures, chemically aggressive or salty environments, and radioactive or high-pressure conditions. The maximum torque should not exceed twice the nominal torque.

Installation Guidelines: Ensure stable mounting to prevent vibrations and check the rotation direction before installation. Replace oil seals if stored for long periods. Use torque arms for hollow shaft mounting and protect the unit from weather and solar radiation. Ensure proper motor cooling and avoid painting over rubber parts. Gradual startup is recommended to avoid immediate maximum load application. Special protection is advised for areas susceptible to oil spillage.

Radial Load Specifications: Admissible radial load values are provided in performance tables and relate to the load applied on the shaft's centerline under unfavorable conditions. Maximum admissible axial loads are 1/5 of the radial load value when combined. Contact Technical Service for radial loads exceeding catalog limits, providing application details. For double extension shafts with radial loads on both ends, define maximum loads based on specific conditions and consult Technical Service. Radial load calculation: Fre (N) = Resulting radial load, M (Nm) = Torque, D (mm) = Diameter of transmission member, Fr (N) = Maximum admitted radial load, fz = Load factor based on component type. Adjust admissible radial load if not applied on the shaft's centerline using provided formulas.

Specifications and Calculations: The document provides formulas for calculating radial loads on shafts, specifying parameters such as torque (M), diameter (D), and maximum admissible radial load (Fr). It includes correction factors (fz) for different transmission elements like gears and pulleys. When the load is not applied at the shaft center, adjustments using specific formulas are necessary.

Radial and Axial Load Limits: Tables list maximum permissible radial loads (Fr2) for various models, with axial loads being 1/5 of these values. Exceeding these limits requires consultation with technical support.

Lubrication Guidelines: For ambient temperatures outside specified ranges, special oil seals are needed. Motors must be suitable for the operating temperature, and oil changes are recommended every 10,000 hours (5,000 for variators). Units without oil plugs are permanently lubricated.

Additional Notes: Gear reducers supplied without lubricant are marked with a warning label. Recommended lubricants are specified by Motovario S.p.A.

Specifications: The document lists various models of Motovariators, each with specific dimensions and performance characteristics. Key parameters include nominal power (kW), speed (1/min), torque (Nm), and dimensions (A, B, C, etc.). The data is presented in tables for easy comparison.

Performance Curves: Performance curves are provided for different models, illustrating the relationship between speed and torque. These curves help in understanding the operational limits and efficiency of each model.

Torque Specifications: Detailed torque specifications are given, including maximum and minimum torque values at different speeds. The document highlights the importance of verifying application torque to avoid performance irregularities and slipping issues.

Dimensions: The document includes comprehensive dimensional data for each model, specifying measurements such as length, width, and height, as well as mounting dimensions. This information is crucial for ensuring compatibility with existing systems.

Recommendations: It is recommended to accurately verify the application torque to prevent performance issues. The document also suggests considering the differential device for applications requiring variable output speeds.

Accessories: Information on available accessories, such as differential devices, is provided. These accessories can enhance the functionality of the Motovariators by allowing for a wider range of speed adjustments.

Overview: The document provides technical details about MOTOVARIO motovariators equipped with epicyclic differential units. These units allow for variable output speed ranging from 0 RPM to maximum RPM. The document is multilingual, including sections in English, Italian, Spanish, French, and Chinese.

Specifications: The motovariators can vary output speed by transmitting constant input shaft speed to both the sun races and an additional epicyclic gear train. This setup allows the planet gears to rotate at the same speed as the driving sun gear, keeping the annulus gear stationary and resulting in zero rotation of the output shaft.

Procedures: The servomotor must be linked to the main variator drive motor, as speed adjustments should only occur while the motovariator is operational. The document specifies various mounting positions and configurations for the motovariators, with standard positions being B3/B5 unless otherwise specified.

Accessories: A range of accessories is available upon request, including gravitational indicators, adjustable right-angle controls, electrical limit stops, transducers, digital tachometers, and pneumatic speed controls.

Technical Data: The document includes tables with detailed measurements and specifications for different models and configurations of motovariators, such as power ratings, reduction ratios, and mounting dimensions.

Recommendations: For specific requirements, the position of the terminal box should be specified when ordering. The document advises consulting technical services for non-standard mounting positions.

Overview: The document appears to be a technical specification sheet for various models of Motovariator-Gear Reducers, also known as Motovariateur-Réducteurs or Verstellgetriebemotoren. These are mechanical devices used to adjust the speed and torque of motors.

Specifications: The document lists numerous models with specific parameters such as power (kW), dimensions, weight, and performance metrics. Each model is identified by a unique code (e.g., VH010 062 80B2 12000) and includes data on efficiency, torque, and speed.

Key Parameters:

Power: Ranges from 1.10 kW to 1.50 kW.
Torque: Varies significantly across models, indicating different applications and performance capabilities.
Speed: Measured in RPM, with values indicating the operational speed range of each model.
Efficiency: Provided as a percentage, reflecting the energy conversion efficiency of each unit.

Applications: These gear reducers are used in various industrial applications where precise control of motor speed and torque is required. They are suitable for use in machinery that requires variable speed control.

Recommendations: Selection of a specific model should be based on the required power, torque, and speed for the intended application. Consideration of efficiency and operational environment is also crucial for optimal performance.

Conclusion: The document provides detailed technical data necessary for selecting the appropriate Motovariator-Gear Reducer model for specific industrial applications. Users should carefully analyze the specifications to ensure compatibility with their operational requirements.

Specifications: The document provides detailed specifications for various models of motovariators and gear reducers. It includes dimensions, mounting positions, and configurations for both lubricated and non-lubricated versions. Key dimensions such as diameter, length, and weight are listed for different models.

Procedures: Instructions are provided for specifying the direction of rotation when ordering, particularly for models equipped with a backstop device. This device allows rotation in only one direction and is available without altering motor dimensions.

Standards and Recommendations: The document emphasizes the importance of specifying execution and mounting positions when placing orders. It also highlights the use of reinforced oil seals for certain models, which are standard for sizes 060 to 140 in specific mounting positions.

Accessories: Various accessories are mentioned, including reinforced oil seals and backstop devices. The document explains the function and installation of these accessories, emphasizing their role in enhancing the performance and reliability of the gear reducers.

Key Data from Tables: The tables provide comprehensive data on dimensions and weights for different models, categorized by size and type. This includes information on input and output dimensions, flange sizes, and reduction ratios.

Critical Information: It is crucial to specify the sense of rotation and mounting position when ordering to ensure compatibility and optimal performance. The document also notes that reinforced seals are standard for certain models, enhancing durability and efficiency.

Catalog excerpts

Informazioni / Informations / Informations / Auswahl / Informaciònes / 信息 Indice Informazioni / Informations / Informations / Auswahl / Informaciònes / 信息 Motovariatori / Motovariators / Motovariateurs / Verstellgetriebes / Motovariadores / 电机变速器

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Informazioni / Informations / Informations / Auswahl / Informaciònes / 信息 Motovariatori / Motovariators / Motovariateurs / Verstellgetriebes / Motovariadores / 电机变速器 P = Potenza ( kW ) M = Momento torcente ( Nm ) n = Numero giri ( giri/1’ ) i = Rapporto di riduzione F = Forza ( N ) m = Peso ( kg ) f.s. = Fattore di servizio 1 = Albero ingresso 2 = Albero uscita r = Radiale a = Assiale s = Statico d = Dinamico max = Massimo min = Minimo P = Power ( kW ) M = Torque ( Nm ) n = Speed ( RPM ) i = Reduction ratio F = Load ( N ) m = Weight ( kg ) f.s. = Service factor 1 = Input shaft 2 = Output shaft...

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Informazioni / Informations / Informations / Auswahl / Informaciònes / 信息 Motovariatori / Motovariators / Motovariateurs / Verstellgetriebes / Motovariadores / 电机变速器 Informazioni / Informations / Informations / Auswahl / Informaciònes / 信息 Funzionamento / Running / Fonctionnement / Funktion / Funcionamiento / 运行 Pista interna fissa Pista interna mobile Molla a tazza Albero Pista esterna fissa Pista esterna mobile Satellite Boccola satellite Porta satellite Volantino di comando Pista esterna di registro Anello portasfere Fixed sun race Adjustable sun race Belleville spring Shaft Fixed annulus...

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Informazioni / Informations / Informations / Auswahl / Informaciònes / 信息 Motovariatori / Motovariators / Motovariateurs / Verstellgetriebes / Motovariadores / 电机变速器 Il motovariatore è costituito da due piste interne (1 e 2) tenute da molle a tazza (3) calettate sull’albero motore (4), da due piste esterne (5 e 6) fisse alla carcassa e da un sufficiente numero di satelliti (7) supportati mediante boccole (8) scorrevoli in senso radiale nel portasatellite (9) che funge da raccoglitore del moto. I satelliti, a contatto con le piste interne, dalle quali ricevono il moto, e con le piste esterne fisse,...

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Informazioni / Informations / Informations / Auswahl / Informaciònes / 信息 Motovariatori / Motovariators / Motovariateurs / Verstellgetriebes / Motovariadores / 电机变速器 Scelta del motovariatore / Choosing a variator / Choix du type de variateur / Empf. für die Verstellgetriebeauswahl / Guia para la seleccion del variador / 选择变速器 Informazioni / Informations / Informations / Auswahl / Informaciònes / 信息 Choix du type de variateur La curva prestazionale di un motovariatore è solitamente suddivisa in due parti distinte: una ad andamento costante ed una ad andamento decrescente. Come illustrato nelle...

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Informazioni / Informations / Informations / Auswahl / Informaciònes / 信息 Motovariatori / Motovariators / Motovariateurs / Verstellgetriebes / Motovariadores / 电机变速器 Guia para la seleccion del variador Die Leistungskurve eines Verstellgetriebemotor ist üblicherweise in zwei verschiedene Teile untergeteilt: ein Teil mit konstante Verlauf und ein Teil mit sinkende Verlauf. Wie in den unteren Bildern illustriert, ist diese Kurve als Minimalwert zwischen folgendene Angaben berechnet: - der Drehzahlenänderung darstellt eine mit horizontale konstante Grenze die mechanische Grenze des alleine Verstellgetriebes...

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Informazioni / Informations / Informations / Auswahl / Informaciònes / 信息 Motovariatori / Motovariators / Motovariateurs / Verstellgetriebes / Motovariadores / 电机变速器 Fattore di servizio / Service factor / Facteur de service / Betriebsfaktor / Factor de servicio / 服务系数 Service factor ll fattore di servizio f.s. dipende dalle condizioni di funzionamento alle quali il riduttore è sottoposto. I parametri che occorre considerare per una corretta selezione del fattore di servizio più adeguato sono: - tipo del carico della macchina azionata: A - B - C - durata di funzionamento giornaliero: ore/giorno...

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Informazioni / Informations / Informations / Auswahl / Informaciònes / 信息 Motovariatori / Motovariators / Motovariateurs / Verstellgetriebes / Motovariadores / 电机变速器 Der Betriebsfaktor f.s. hängt von den Betriebsbedingungen ab, unter denen das Getriebes betrieben wird. Die Parameter, die für eine korrekte Auswahl des Betriebsfaktors zu berücksichtigen sind, sind folgende: - Belastungsart der angetriebenen Maschine: A - B - C - tägliche Betriebsdauer: Std./Tag (∆) - Anlauffrequenz: Anl./Std. (*) El factor de servicio f.s. depende de las condiciónes de funcionamiento a las cuales está sometido...

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Informazioni / Informations / Informations / Auswahl / Informaciònes / 信息 Motovariatori / Motovariators / Motovariateurs / Verstellgetriebes / Motovariadores / 电机变速器 Applicazioni critiche / Critical applications / Applications critiques / Kritische Anwendungen / Aplicaciónes criticas / 关键应用 H Applicazione sconsigliata Application not recommended Application non conseillée Nicht empfohlene Anwendung Aplicación desaconsejada 不建议使用该应用程序 Verificare l’applicazione e/o contattare il ns. servizio tecnico Check the application and/or call our technical service Vérifier l’application et/ou contacter notre...

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Informazioni / Informations / Informations / Auswahl / Informaciònes / 信息 Motovariatori / Motovariators / Motovariateurs / Verstellgetriebes / Motovariadores / 电机变速器 Applicazioni critiche / Critical applications / Applications critiques / Kritische Anwendungen / Aplicaciónes criticas / 关键应用 NMRV Applicazione sconsigliata Application not recommended Application non conseillée Nicht empfohlene Anwendung Aplicación desaconsejada 建议不采用的应用 Verificare l’applicazione e/o contattare il ns. servizio tecnico Check the application and/or call our technical service Vérifier l’application et/ou contacter...

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Motovariators

Motovariators

Catalog excerpts

All MOTOVARIO catalogs and technical brochures