Heavy duty hydrostatic speed variators
Heavy duty hydrostatic speed variators
The VAR-SPE speed variators function based on hydrostatic power transmission, featuring a primary hydraulic radial piston variable displacement pump and a secondary constant displacement pump. An auxiliary pump supplies oil, enabling variable output speed in both directions. Speed is adjusted by changing the primary unit's eccentricity. Relief torque valves ensure safe operation under load.
The document provides guidance on ordering variators, detailing type, power range, control position, and accessories. Construction types include input male shaft, flange at input, and top-mounted motor configurations.
Designed for horizontal or 30° inclined positions, special arrangements are needed for other positions. Maintenance includes lubrication guidelines, with specific lubricant quantities detailed.
Selection should consider power or torque requirements and speed variation range. Service factors for different conditions are provided, advising larger reducers for frequent starts or high starting torques.
Various speed control options are listed, including manual, electrical, electronic, pneumatic, and electrohydraulic controls. Accessories like torque-limiting valves and oil coolers enhance performance and safety.
Detailed specifications for gearboxes and motor-variators include dimensions, weight, power, speed range, and torque. Models like RV 25, RP26, and RV 27-3A are specified.
Installation and adjustment instructions emphasize oil filling before use, ensuring a rigid base, and using appropriate tools to avoid damage. Proper alignment and protective coatings are advised.
Permissible radial and axial loads are outlined, with specific values in tables. Guidelines for selecting load factors based on drive type are provided.
Tables provide maximum permissible radial loads, partial dimensions, and torque values for motor-variator-gearbox combinations.
Ensure the variator is filled with oil before operation, verify loads do not exceed limits, and ensure proper alignment and mounting.
Variators are packaged per order agreements, painted if required, and equipped with assembly hardware and an instruction manual.
Protect oil seals and machined surfaces during installation. Ensure a flat, non-flexible surface free from vibrations. Proper shaft alignment is crucial.
Recommended input shaft speed range is 900-1450 rpm, with a working temperature of 60°C plus room temperature.
Mechanical stops limit the hydraulic pump's regulating mechanism travel, with adjustments possible for rotation direction regulation.
Regular oil checks and changes are necessary, with specific intervals. Avoid mixing oil types and ensure fan cowls are unobstructed.
Variators are supplied without oil; customers must fill them. Oil changes should follow prescribed intervals, with specific oil types recommended.
Various gearboxes can be coupled with variators, some requiring no maintenance due to lifetime lubrication.
VAR-SPE offers various electric motors, including standard, self-breaking, explosion-proof, and tropicalized types.
The document provides a guide on engineering services for automation and variable speed programming in industrial processes.
Includes manual, electric, electronic, pneumatic, and electrohydraulic controls, each with specific applications and features.
Includes speed indicators and gradual starting devices for high inertia applications.
Describes a system allowing speed variations via a pushbutton panel, with automatic zeroing and external flow controls.
Specifies adjustment frequencies based on load conditions.
Lists devices and accessories with specific functions, such as torque limiting and bi-directional performance.
Options for monitoring torque and controlling oil preheater power supply.
Various designs and mounting options are outlined, with special arrangements for certain positions.
Instructions for ordering, including specifying variator size, power range, and additional devices or accessories.
Details on devices rated at 220 V - 50Hz and oil coolers for high-temperature environments.
List of spare parts and accessories with codes and specifications.
Company disclaims responsibility for improper use and reserves the right to make modifications without notice.
Products are ideal for special, heavy, or dangerous applications.
Contact details for VAR-SPE are provided.
Additional products include variators and compact hydrostatic transmissions.
Catalog excerpts
15 - 17B 2,2kW-22kW Variatori di velocità idrostatici Industrial Integrated Hydrostatic Transmission Via Cordellina, 81 - 36077 Altavilla Vicentina (VI) - Italy / Tel. (+39) 0444.57.20.11 - Fax (+39) 0444.57.31.88 www.varspe.com - [email protected] - [email protected]
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Guida alia selezione 8 Carichi sugli alberi 20 Comandi di regolazione ed accessori 28 Lista pezzi ricambi 39 Speed controls and accessories 28 Manual speed controls 29 Electrical speed controls 31 Electronic speed controls 33 Gradual speed controls 34 Pneumatic speed controls 35 Electrohydraulic speed controls 36 Spare parts lists 35
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Principio di funzionamento Working principle SlNTESI DEL PRINCIPIO DI FUNZIONAMENTO SYNTHESIS OF WORKING PRINCIPLE II variatore di velocita VAR-SPE funziona mediante il principio della trasmissione idrostatica ed e costituito essenzialmente da una pompa idraulica volumetrica a pistoni radiali a cilin- drata regolabile (unita primaria), e da una pompa volumetri- ca a cilindrata fissa (unita secondaria). Una piccola pompa ausiliaria e collegata con I'unita primaria ed alimenta, con olio dal serbatoio, il circuito idraulico. II variatore consente di ottenere una velocita di uscita regola- bile (in...
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Forma costruttiva Constructional design Albero maschio entrata Input male shaft Con motore flangiato al variatore With motor flanged to variator With top-mounted motor ALTRE FORME COSTRUTTIVE OTHER CONSTRUCTION DESIGN Forma 12 predisposto per motore sovrapposto Type 12 designed for a top-mounted motor Variator size power range COMANDO A DESTRA CON ALBERO Dl USCITA DEL VARIATORE Dl FRONTE CONTROL ON THE RIGHT WHEN LOOKING ON THE VARIATOR OUTPUT SHAFT SIDE Speed control 02 Rapido a leva (servizio leggero) 03 Rapido a leva per elevato numero di 20 Elettrico a distanza con regolazione in 22 Elettrico...
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Variariduttore con variatore flangiato in entrata Variator-reducer with variator flanged at the input Motovariariduttore con motore flangiato al variatore Motor-variator-reducer with motor flanged to variator With top-mounted motor Dossier according consegnare i nostri prodotti secondo le normative ATEX. COMANDO A SINISTRA CON ALBERO Dl USCITA DEL VARIATORE Dl FRONTE CONTROL ON THE LEFT WHEN LOOKING ON THE VARIATOR OUTPUT SHAFT SIDE 37 Elettroidraulico a controllo elettronico proporzionale 38 Elettroidraulico a controllo elettronico proporzionale con azzeramento ausiliario 46 Avolantino con dispositivo...
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Posizione d'installazione Working position Horizontal mounting Ceiling mounting MonHag^io a parelE, piedi a sinistra Montagglo rarHcata con ustita verso \1 basso Veritc&t mounting, output downwards "■'■.■>■ 1ta!:■„■!■; verticals con useita verso Villa Vortical mounting, output upwards Wall mounting, feet on the rignt-hand side Fitting pfvg Drain plug La posizione verticale per 16B e 17B e speciale, contattare VAR-SPE Vertical position for 16B and ijB is special, please contact VAR-SPE PER LE QUANTITA Dl LUBRIFICANTE VEDERE NOTE ALLE II variatore VAR-SPE enormalmente predisposto perfunziona- re...
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Guida alia selezione Nella corretta selezione del VARIATORE o MOTOVARIATORE e opportu- no rispettare le seguenti indicazioni pergarantire un funzionamento ottimale ed una economia di esercizio a lungo termine. When selecting the suitable VARIATOR or MOTOR-VARIATOR it is important to comply with the following directions in order to ensure an optimum working and long-term minimum running cost. U Determinare la potenza teorica o il momento torcente neces- sario all'azionamento della macchina utilizzatrice: U Determine theoretical power or torque required by driving P [Kw] Potenza in uscita / Output...
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SELEZIONE VARIARIDUTTORI - MOTOVARIARIDUTTORI fcJ Selezionare i gruppi variariduttori e motovariariduttori in base alia potenza o coppia richiesta e al campo di variazione dei giri, veda- N.B. I valori della coppia indicati (coppia uscita e coppia massima) sono perfunzionamento continuo con fattore di servizio 1. Nelle app- plicazioni con frequenti awiamenti 0 forti coppie alio spunto e con- sigliabile sovradimensionare il riduttore scegliendo quello di gran- dezza superiore (vedere nella tabella sottostante il fattore di servizio previsto peri riduttori). In taluni casi, persalvaguardare il...
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Diagrammi caratteristici dei Motovariatori Specific diagrams of Motor-variators VARIATORE - VARIATOR JYP^ 11 td&cita iHrJI" alberg tijcente ciri/min Butpur ip(t<{Bi| gl the jr.icn iSa 11 il HPM MOTOVARIATORE - MOTOR-VARIATOR * Coppia massima alia minima velocita. * Maxtorque at minimum speed.
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Flangia uscita B5IEC112 / B5IEC112 output flange 921 autofrenente / brake motor 898 AD-PE / explosion proof 926 aulofrenanle / brake motor 531 flangialo 1 with flange Flange uscita riduttore Gear output flanges C2 e C3 indicano le quote massime di ingombro in altezza (dai piedi del riduttore 0 dai piedi del variatore). C2 and C3 are the max overall dimensions in height (from feet of reducer or from feet ofvariator). * escluso il motore - excluding the motor.
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Diagrammi caratteristici dei Motovariatori Specific diagrams of Motor-variators VARIATORE - VARIATOR JYP^ 11 idiElli tiitH' jIMrt tuctitt jiri/uli MOTOVARIATORE - MOTOR-VARIATOR it Coppia massima alia minima velocita. * Maxtorque at minimum speed. * * Per funzionamento a 60 Hz contattare 1'ufficio tecnico VAR-SPE. *_* For 60 Hz work, please contact VAR-SPE technical department. ** Nella versione con flangia in uscita deve essere previsto il sostegno del variatore ** If output flange version is required, either feet mounted variator or a higher size con i piedi, oppure selezionare il riduttore...
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16 Dimensioni FORMA TYPE Dimensions FORMA TYPE 10 11 Flangia uscita B5 IEC 132 / B5 IEC 132 output ange FORMA TYPE 21 FORMA TYPE 22 FORMA TYPE 41 FORMA TYPE 42 A Flange uscita riduttore pag. 21 Gear output anges pag. 21 RIDUTTORE TIPO GEARBOX TYPE AD-PE EXPLOS-PROOF AUTOFRENANTE BRAKE MOTOR 1188 1250 1317 RC 115/P FORMA TYPE RIDUTTORE TIPO GEARBOX TYPE A1 C C2 D E F L Kg* 840 NORMALE NORMAL 430 688 38 88 80 356 180 FORMA TYPE 41 A 42 B C2 C3 D F G H I L M N O Kg* 225 430 688 40 75 215 86.5 175 110 170 160 16 185 1047 275 430 688 50 90 260 216,5 215 130 215 175 16 205 1104 330 435 693 60 105 300...
Open the catalog to page 13All VAR-SPE catalogs and technical brochures
Pumps2 Pages
Archived catalogs
Hydrostatic speed variators36 Pages