Gear motors SOLID AND RELIABLE

Transcription

1 Gear motors SOLID AND RELIABLE

2 GEAR MOTORS FOR DOMESTIC AND PROFESSIONAL USE SERIES MR 330 These motors are characterized by their compact dimensions, high flexibility and extremely high quality, guaranteed by a careful choice of materials and great attention in the manufacturing stage. OPERATION The Milano Componenti MR 330 Series of gear motors offers a wide range of models for both continuous and intermittent duty. In particular for the intermittent duty, there are some solutions: Normal intermittent duty at 50%: 10 ON and 10 OFF Reduced intermittent duty at 30%: 6 ON and 4 OFF Base time for intermittent duty is 20 seconds and the MR 330 Series gear motors for intermittent usage are available in the self-locking model: AB version, usually with a horizontal shaft. This AB model enables the elimination of rotor inertia, by acting against the inertia of the units to which the gear motor is applied and cancelling any active load torque. The ambient temperature must be between 10 C and 80 C, observing the over-temperature limits laid down by current regulations for windings. Prior to regular running, it is therefore necessary to carry out winding over-temperature tests on the motor mounted on the equipment, by selecting the most severe duty cycle. APPLICATIONS Vending machines Units for coffee machines Ice makers Ice-cream machines Industrial rotisseries Rotating display stands Change machines Valve operation Fig. 1

3 Fig. 2 CONSTRUCTIONAL SPECIFICATIONS Die-cast aluminium gear box, available in two versions (Figure A): L1 for speeds from 0.5 to 5.8 min 1 / L2 for speeds from 7 to 196 min 1 high-speed gears in polyamide for noise reduction low-speed gears in sintered steel gear shafts in tempered steel embedded in the reducer casing TECHNICAL SPECIFICATIONS AC Version Voltage and frequency (normal usage): 220 V / 50 Hz 110 V / 60 Hz Two-pole single-phase induction motor with short-circuited phase windings Class F winding insulation Rotor supported by rotating bushing on fixed shaft TECHNICAL SPECIFICATIONS DC Version Voltage (normal usage): 12 V o 24 V Permanent-magnet commutator motor Anti-interference impedances mounted on motor Electrical connections: Faston 6.3 x 0.8 mm

4 GUIDE TO THE CHOICE OF THE GEAR MOTOR TYPE MR 330 To choose the model best suited to your requirements, identify: Operating voltage and frequency Required rotational speed Torque needed, according to the duty type (continuous or intermittent), referring to Table 2 Preferred constructional solution, referring to the following figures The table 1 defines the gear box dimensions in the different Constructional solutions (fig. 3) Slow-speed shaft output. The gear motor can be purchased equipped with the standard shaft or in the shaftless version (for application of client shaft). Fig. A Gear box dimensions Fig. 3 Constructional solutions Standard Autosganciante (AS) Autobloccante (AB) L1 M1 Standard Autosganciante (AS) Autobloccante (AB) L2 M2 Soluzione chiusa Soluzione in C.C. M3 M4

5 Type of motor OVERALL DIMENSIONS OF THE GEAR MOTORS Table 1 Type of installation Standard AB Self-locking Enclosed CC Current M1S M2S M1AB M2AB M3 M4 Type of the box L1 L2 L1 L2 63,5 57,3 H12 61,5 54,5 61,5 54,5 Overall dimensions Q in mm fig. 3 H20 69,5 62,5 69,5 62,5 88,5 81,5 88,5 81,5 H30 79,5 72,5 79,5 72,5 98,5 91,5 98,5 91,5 H40 89,5 82,5 89,5 82, C.C STANDARD PERFORMANCE Maximum torque values in Kg-cm Table 2 Gear box L1 L2 Motor casing height Duty cycles H12 H20 H30 H40 C.C. min ¹ 0, , Inter. 50% Inter. 50% Inter. 50% , , ,5 31, , , , , , ,5 75 6,5 18,5 18, , , ,5 8,5 8, ,5 6,5 6,5 0,7

6 SERIES MR 323 The gear motors series MR 323 are designed for domestic appliances for example roasters and electrical or gas ovens, these motors are noiseless, have a long-life and are highly reliable. CERTIFICATIONS IMQ Approved VDE Approved UL Approved OPERATION The gear motors series MR 323 are projected to be used in high temperature appliance, as traditional ovens and pyrolytic cleaning. Two versions of the MR 323 gear motors are available, according to the ambient operating temperature: Class F gear motor: maximum ambient temperature 90 C Class H gear motor: maximum ambient temperature 125 C APPLICATIONS Roasters and spits for ovens and kitchen Door locks for pyrolytic ovens Barbecue Automatic macchine CONSTRUCTIONAL SPECIFICATIONS Single-phase synchronous motor (4 watt); direction of rotation not predetermined Rotor in sintered ceramic oxides with high magnetization Class H motor insulation Slow-speed shaft revolution 1.8 min Gear support in pressed sheet metal Cover in deep-drawn galvanized sheet metal Molybdenum bisulphide grease 0for lifelong lubrication Electrical connections: tinned brass faston 6.3 x 0.8 Power supply: AC: 220/240 V 50/60 Hz and DC: 4.5 V / 12 V Coupling in deep-drawn galvanized sheet metal, pressure-fitted on the slow-speed shaft, Knurled in various versions

7 MOTOR FANS UNITS SERIES VR The VR Series motor-fan units have been developed to respond to the ever-increasing demands in terms of cooking technologies, which nowadays require temperatures inside the oven to be as uniform as possible. They are characterized by high durability and extremely high quality, guaranteed by a careful choice of materials and great attention in the manufacturing stage. APPLICATIONS Ventilated ovens Multifunction ovens Combi ovens CONSTRUCTIONAL SPECIFICATIONS Fan in aluminized steel, die-cast aluminium, sintered bronze and tempered steel Two-pole single-phase asynchronous induction motor with short-circuited phase windings Class F or H motor insulation Stator and rotor lamination pack made with low-loss sheet which permits reduced power absorption Squirrel-cage rotor in die-cast aluminium Mounting and assembly supports in die-cast aluminium Self-aligning motor bearings in sintered bronze and with lifelong lubrication Lubricant for high temperatures Driveshaft in tempered steel Permissible voltage (normal usage): from 24 Volt to 400 Volt Permissible frequency (normal usage): from 50 Hz to 60 Hz Electrical connections: faston terminals 6.3 x 0.8 Fan locking guaranteed by milling and lock nut Large motor-cooling fan mounted directly on the shaft

8 VENTILATORI TANGENZIALI - SERIE TG The TG Series motor-fan units are tangential fans characterized bynoiselessness, compact dimensions and high reliability. The rotation of the impeller creates a vortex motion that directs the airflow by means of a special guide system. APPLICATIONS Air treatment (forced heating, convectors, air conditioners, convection fans, heat regenerators, heat accumulators, balanced discharge burners and air cleaners) Equipment cooling (computers, power supply units, printers, office machines, power boards and control cabinets) Room ventilation (smoke extraction, air curtains and room fans) Domestic appliances (ovens, stoves, hobs, clothes dryers and humidifiers) Refrigerated display cases Vending machines CONSTRUCTIONAL SPECIFICATIONS Pressed scroll in pre-galvanized steel sheet, completely seamed or welded according to the model Impeller obtained using sheets cut from calibrated aluminium strip Two-pole single-phase induction motor with short-circuited phase windings Class F (155 C) and class H ( C) motor insulation Motor supports in die-cast aluminium and zamak Self-aligning motor bearings in sintered bronze Large Permawich tank Oil recuperators Fan support bearings in Teflon-carbon and latilub assembled in three components Driveshaft in tempered steel Permissible voltage (normal usage): from 24 Volt to 400 Volt Permissible frequency (normal usage): from 50 Hz to 60 Hz Electrical connections: faston terminals 6.3 x 0.8 SPECIAL VERSIONS TG Series motor-fan units are available in the following lengths: 120 / 180 / 240 / 270 / 300 / 360 mm