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- NIASA, NEFF Y ASOCIADOS, S.A.
- Actuators with Integrated Reduction & Compact Gearbox
Actuators with Integrated Reduction & Compact Gearbox
Actuators with Integrated Reduction & Compact Gearbox
The document provides an overview of the NIASA FHM/AHM Series electro-mechanical actuators, specifically designed for solar energy applications and other demanding environments. These actuators feature a round gearbox and an input shaft compatible with various drives. The D variant includes a second reduction for slow advance speeds, ideal for solar tracking applications.
- Precision in movement and positioning.
- Enhanced safety with irreversibility and braking devices.
- High energy efficiency due to ball screws and low transmission ratios.
- Simple assembly without hydraulic or pneumatic systems.
- Reliability and minimal maintenance.
- Compact size for equivalent load capacity.
- Axial load capacities range from 5 kN to 250 kN.
- Advance speeds depend on screw pitch and gearbox, with reductions from 4:1 to 160:1.
- Options for trapezoidal and ball screws based on performance needs.
- Various fastening accessories and control systems available.
- Materials and surface treatments adaptable to environmental conditions.
- Photovoltaic installations: FHM-D Series actuators enable zenithal movement of panel grids.
- Stirling Tracker: Actuators orient parabolic mirrors to focus sunlight on Stirling motors.
- Cylinder/Parabolic Solar Concentration: Actuators adjust the angle of parabolic troughs.
- Solar/Heliostat Tracker: Dual actuators provide azimuth and zenithal movement for panel grids.
The document details various actuator sizes, each with specific load capacities and reduction options, ranging from HM1 (5 kN) to HJ3 (250 kN), with options for steel or aluminum exterior tubes.
Tables provide detailed specifications for different actuator models, including screw diameter, axial strength, reduction ratios, travel per input revolution, performance percentages, drive and start-up torque, and weight. Calculations are based on an input speed of 1,500 rpm, with additional calculations for other speeds.
NIASA offers customization for actuators beyond standard specifications, with a technical department available for developing special units tailored to specific requirements.
This document provides technical specifications and guidelines for selecting and using linear actuators from the FHM and AHM series, focusing on screw types, performance metrics, and installation requirements.
The document details various screw types, including Trapezoidal (Tr) and Ball (KGS) screws, with specifications on diameter, pitch, maximum axial strength, reduction ratios, and travel per input revolution. Key models include Tr 45x7, KGS 4010, KGS 4020, and KGS 4040, each with specific performance metrics and torque requirements.
Performance percentages and torque requirements are provided for different configurations (S, H, D). The document includes formulas for calculating drive torque (MD) and start-up torque (MO), emphasizing the importance of not exceeding critical dynamic load values to prevent overheating and mechanical failure.
Detailed dimensions for various actuator models (FHM4, FHM5, FHJ1, FHJ3) are provided, including shaft sizes and fastening requirements. The document advises on safety margins and the importance of adhering to specified configurations to ensure optimal performance.
A flow diagram guides the selection of the appropriate actuator model based on application needs, including considerations for material type (steel or aluminum tube), screw type, and additional configurations. The document stresses the importance of calculating torque and power requirements accurately, with recommendations for safety coefficients.
Users are advised to consult the calculations chapter for speed adjustments and to ensure that dynamic loads do not exceed specified limits. The document also highlights the availability of higher capacity configurations upon request.
The document provides detailed specifications and formulas for calculating torque and efficiency in HM Series linear actuators. Key formulas include:
- Drive Torque (mD) and Idle Torque (mI) calculations.
- Efficiency parameters such as static efficiency (ηSA), gearbox dynamic efficiency (ηDG), and screw dynamic efficiency (ηDS).
The actuators are lubricated with DIVINOL LITHOGREASE G421, a semi-synthetic grease. Regular lubrication is recommended every 30 to 50 hours after start-up and approximately every six months. Over-lubrication should be avoided, and a group lubricator is suggested for automatic lubrication.
The document outlines protection against corrosion and environmental conditions. It uses the DIN EN ISO 12944-2 standard for corrosion categories and provides IP protection levels against solids and liquids. For environments with temperatures below -20ºC or above +40ºC, consultation with NIASA is advised.
The document details various configurations and options for linear actuators, including:
- Gearbox speed options (normal, slow, super-slow).
- Screw types (trapezoidal and ball screws).
- Optional configurations like immobilizations and special fastenings.
Detailed diagrams and parts lists are provided for the assembly and disassembly of the actuators, including components like the gearbox, screws, nuts, and seals.
The document includes a comprehensive guide for placing orders, specifying size, gearbox type, screw type, stroke, and additional accessories. It also covers lubrication and color options.
Catalog excerpts
LINEAR ACTUATORS WITH INTEGRATED REDUCTION AND COMPACT GEARBOX FHM Series: Steel tube AHM Series: Aluminum tube
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“WE HAVE A STRATEGIC PLAN. IT'S CALLED DOING THINGS.” HERB KELLEHER SOUTHWEST AIRLINES
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LINEAR ACTUATORSGEARBOX. FHM series: steel tube | AHM series: aluminum tube WITH INTEGRATED REDUCTION AND COMPACT INTRODUCTION NIASA FHM/AHM Series electro-mechanical actuators have evolved from the FM/AM Series, aimed at specific requirements in the solar energy generation sector (photovoltaic, thermo-solar, etc.). They can also be used in any other kind of application with demanding environmental conditions. The screw supports also characterized for offering an extensive range of: …… Axial load capacities, from 5 kN up to 250 kN. …… Advance speeds, depending on the screw pitch and gearbox....
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LINEAR ACTUATORSGEARBOX. FHM series: steel tube | AHM series: aluminum tube WITH INTEGRATED REDUCTION AND COMPACT Applications STIRLING TRACKER FHM-D Series actuator, with IPX protection, that produces the zenithal orientation movement of a parabolic mirror grid, whose purpose is to concentrate the Sun's rays on a Stirling motor joined to them. The actuator size depends on the total surface of the mirrors, the tilt of the Stirling, etc. PHOTOVOLTAIC INSTALLATION FHM-D Series actuator that enables zenithal movement on one or more horizontal or polar photovoltaic panel grids. The number and size...
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SOLAR/HELIOSTAT TRACKER 2 SHAFTS Two FHM-D actuators, with IPX protection, independently driven, provide azimuth and zenithal movement to a grid of panels or mirrors, to maintain it in the desired orientation at all times. The m2 of grid to move will depend on the size of the actuators, motorization, etc. CYLINDER/PARABOLIC SOLAR CONCENTRATION FHM-D Series actuator, with IPX protection, placed on a horizontal movement table. Both actuators combined change the angle of parabolic trough’s orientation to concentrate the solar energy on the central conduit where the fluid to be heated circulates.
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LINEAR ACTUATORS WITH INTEGRATED REDUCTION AND COMPACT GEARBOX. FHM SERIES: STEEL TUBE I AHM SERIES: ALUMINUM TUBE On all the sizes there are trapezoidal and ball screw options (see chapter on screws for further information), as well as normal speed (S) and slow speed (H) gearboxes. A third reduction with super slow speed (D) is also available from size HM4. Steel exterior tube page 156 page 157 page 158 Aluminum exterior tube With anti-corrosion With magnetic sensor tube (optional) page 156 page 157 page 158 In addition to the standard range of HM Series linear actuators, NIASA can specifically...
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page 159 page 160 page 161 page 162
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LINEAR ACTUATORS WITH INTEGRATED REDUCTION AND COMPACT GEARBOX. FHM SERIES: STEEL TUBE I AHM SERIES: ALUMINUM TUBE GENERAL PRODUCT OVERVIEW Name Page 15 FCI inductive limit switch 12 Flanges with bolts for BB Series steel tube i/ Flanges with bearings for 17 BA bolts for aluminum tube 274 18 FCG magnetic limit switch 20 Position sensor magnet iq Connection sensor input 2f)P
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Access caps grease screw and nut Shaft up to Ø11 with DIN6885 A keyway Ø28 LOWER GEARBOX FASTENING SAFETY MARGIN Travel (mm/revol. input) Approx. weight each 100mm of stroke (kg) Screw diameter and step (mm) Maximum axial strength (kN) F (kN), load to move in dynamic … Power required: PD (kW) = 0,157x MD (Nm). … All the data in the table correspond to an input speed of 1,500 rpm. For other speeds, please see the calculation chapter (page 166). ... Ensure that the dynamic load of the application does not surpass the critical values indicated, in order to avoid overheating of the unit and buckling...
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Access caps grease screw and nut Shaft up to Ø20 with DIN6885 A keyway (4x) M5x10 Prof. Ø52 LOWER GEARBOX FASTENING Screw diameter and step (mm) Maximum axial strength (kN) SAFETY MARGIN Travel (mm/revol. input) F (kN), load to move in dynamic Approx. weight each 100mm of stroke (kg) … Power required: PD (kW) = 0,157x MD (Nm). … All the data in the table correspond to an input speed of 1,500 rpm. For other speeds, please see the calculation chapter (page 166). ... Ensure that the dynamic load of the application does not surpass the critical values indicated, in order to avoid overheating of...
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Access caps grease screw and nut Shaft up to Ø20 with DIN6885 A keyway (4x) M6x12 Prof. SAFETY MARGIN (*) If incorporating a KGM 3220 nut, the safety margin is 15 mm. LOWER GEARBOX FASTENING Screw diameter and step (mm) Maximum axial strength (kN) Travel (mm/revol. input) F (kN), load to move in dynamic Approx. weight each 100mm of stroke (kg) … Power required: PD (kW) = 0,157x MD (Nm). … All the data in the table correspond to an input speed of 1,500 rpm. For other speeds, please see the calculation chapter (page 166). ... Ensure that the dynamic load of the application does not surpass the...
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See dimensions of the D configuration at the end of this chapter. Shaft up to Ø24 with DIN6885 A keyway (4x) M10x16 Prof. Access caps grease screw and nut Ø 62 LOWER GEARBOX FASTENING Screw diameter and step (mm) Tr 45x7 SAFETY MARGIN Maximum axial strength (kN) Screw diameter and pitch (mm) Travel (mm/revol. input) F (kN), load to move in dynamic Approx. weight each 100 mm of stroke (kg) … Power required: PD (kW) = 0,157x MD (Nm). … All the data in the table correspond to an input speed of 1,500 rpm. For other speeds, please see the calculation chapter (page 166). ... Ensure that the dynamic...
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The capacity indicated corresponds to the basic configuration. Higher capacities are available on request. Access caps grease screw and nut Shaft up to Ø30 with DIN6885 A keyway (4x) M12x16 Prof. LOWER GEARBOX FASTENING SAFETY MARGIN Maximum axial strength (kN) Screw diameter and pitch (mm) Tr 50x8 Screw diameter and step (mm) See dimensions of the D configuration at the end of this chapter. Travel (mm/revol. input) F (kN), load to move in dynamic Approx. weight each 100 mm of stroke (kg) … Power required: PD (kW) = 0,157x MD (Nm). … All the data in the table correspond to an input speed of 1,500...
Open the catalog to page 17All NIASA, NEFF Y ASOCIADOS, S.A. catalogs and technical brochures
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