Portable Weigher for Railway Vehicles

DESCRIPTION

ACYGS, the official distributor of IVM, introduces the new portable weighing system for railway vehicles, also known as POWERVE®.

This equipment statically performs the measurement of the vertical force distribution on wheels and wheelsets.

Its excellent measurement performance, portability and ease of use make it an ideal tool to verify that all parameters related to rolling stock balance comply with the optimal operating limits.

This system has been continuously improving over the years, achieving high performance compared to high-precision static fixed weighing systems.

POWERVE® transforms any rail into a measuring station with very high accuracy and exactness characteristics and enables quick and easy weighing.

POWERVE® is an ITALCERTIFER certified weighing equipment (ref. of the evaluation report: ITCFC-19222-11-ATF-RA-00011), according to the following standards:

UNE- EN 15654-2:2020, “Railway applications. Measurement of the vertical force distribution on wheels and wheelsets. Part 2: Test in workshop for new, modified and maintained vehicles”.

UNE EN 50215:2011(only for the weighing of rolling stock and the vertical force exerted by each wheel on the track)

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Wheel Profile Measuring System

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The wheel profile measuring equipment is divided into three separate systems:

  • Artificial Vision Wheelset Parameter Measuring Equipment (EVA): The parameters of all the wheels are measured while the train is running, automatically detecting any wheels that are out of tolerance. It is based on laser wheel illumination and special camera imaging.
  • Wheelset Surface Defect Detection System (DSR): Thanks to an advanced ultrasound detection system, it identifies and quantifies any instant deterioration that may have occurred during circulation on the surface of the tread band (cracks, wheelflats, dents, etc.)
  • Wheelset Eccentricity Measuring Equipment (EMO): This system measures irregular wear of the tire, that is to say, the lack of roundness. Throughout a complete turn of the wheel, the system monitors the roundness defects that occur on three wheelset circles (selected by the customer) by obtaining the wheel out of roundness value and the corresponding graph.

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Permanent calibration, ergonomic design and a logical operating sequence are features that facilitate operation.

Their modular design principle and a wide range of accessories make the machine highly flexible.

TECHNICAL CHARACTERISTICS

In addition to the above applications, test rotors are used for standardized testing in accordance with ISO 2953 (UMAR = minimum achievable residual unbalance) or SAE ARP4048.

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Digital fault detectors feature a high brightness screen and a keypad as operator interface. With the different measurement methods available, the special functions, the internal data logger and their full output capability, these inspection devices are the most versatile of this new generation.

This unit is supplied with a multi-transducer rotary probe designed specifically for the control of solid railway axles.

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This inspection device is already configured to automatically recall the calibrations of the selected transducer using a switch on the rotary probe. Each recalled calibration panel is identified by a message displayed on the screen.

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Multiprocess Lathe

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The multiprocess lathe with CNC is able to turn wheelsets, axles and wheel hubs, profiling them to the required dimensions.

It has a one-piece cast iron bed, thermally stabilized, and with chip removal section.

Four speed ranges and an automatic tool change allow the axle to be acted on from the turret. Lubrication is automatic and it is located on the cross carriage.

TECHNICAL CHARACTERISTICS

Distances between centers, up to 8 meters, with the possibility of being adapted to different requirements.

The tailstock center and its base are cast, reinforced with nerves. The movement is motorized along the bed and has a thermal expansion compensation system for the workpiece.

The operator and other workshop workers can work safely thanks to the front and rear guards of the lathe.

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Bogie Testing Bench

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These machines can be configured as simple units, for mounting and dismounting operations only, to high-tech solutions, ideal for dealing with different track gauges and for measuring multiple parameters such as track gauge, axle parallelism, axle diagonal, wheel diameter, wheel distance and suspension shim calculation.

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The bogie testing benches can be installed both in a pit and on standard industrial floor, depending on the specific needs of each customer.

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Manual Gauges

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ACYGS offers three types of manual gauges:

  • Diameter measuring gauge:
    • Machine accuracy < 0.1 mm
    • Pression arrow measurement ± 0.001 mm
    • Automatic stop
  • Wheel profile gauge:
    • Flange height
    • Flange thickness
    • Flange slope qR
  • Back-to-back distance measuring gauge:
    • This gauge measures the distance between the inner faces of the wheels on the same axle.
    • Measurement tolerance ± 0.1 mm
    • Net weight 3.6 kg

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It can be supplied with an automated loading and unloading system to optimize the wheel hub reprofiling times.

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We have three main models of underfloor wheel lathes, which have been developed to service different types of trains and railway vehicles according to their maximum weight per axle. 

All models are configurable to all track gauges and different tread profiles depending on the customer’s needs.

TECHNICAL CHARACTERISTICS

The automated model allows the operator to turn a complete composition without the need to intervene in the process of train movement and wheel turning decision. These are some of the automated tasks:

  • Automatic motion of the composition
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  • Turning of the wheel according to the pre-defined template

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