VTU-01 Underfloor wheel lathe

     VTU-01 wheel lathe used as a technological equipment in the locomotive or trams depot. It used for turning treatment of the railway wheel set rolling profile.

Main technical data:

Parameters or dimensions Unit Value
Parameters of wheelpairs
Track gauge mm 1520*
Min. wheel diameter mm 900**
Max. wheel diameter mm 1250
Max. wheel profile width mm 150
Max/ wheelpair load ton 20
Processing parameters
Max/ cutting depth mm 4
Carriage feed (stepless regulation) mm/min 8...40
Cutting speed (nominal) m/min 80***
Hydraulic system parameters
Working pressure MPa 16
Wheelpair lifting devices load capacity ton 2х25
Traction motor support jacks load capacity ton 2х5
Electrical system parameters
Main drive motor power kW 7,5
Feed drives motors power kW 2х0,75
Hydraulic station motor power kW 4
Constructive power of machine kW 20****
Electrical network parameters - 400V 50Hz
Overall dimensions and weight
Lenght (installed,without electric and hydraulic equipment) mm 5910*****
Width (installed) mm 2650
Height (from the floor of the pit) mm 1560
Pit depth (from the rail head) mm 1575
Weight kg 5000*****
 

*  We have possibility of manufacture the lathe for another track width on customer`s request.

** Possible to make special option for another wheel diameters.

     *** Main drive may be with step or stepless regulation of rotation speed.
 
     **** Power for standart model
 
     ***** Parameters for standart model for track gauge 1520mm/
  
The lathe is installed on a foundation in the pit bellow the rails (underfloor).

 

Main parts of the lathe:

  • Underframe is welded from the steel sheets. Carriages assemblies, lifting devices and tracktion motor support device was mounted on it. 

  • Two carriage asemblies? that provides traverse and transverse movements of the cutter. Traverse feed may be carried by the drive

  • Lifting devices for lifting and holding of the wheel set during processing.

  • Traction motor supporting device

  • Feed drives

  • Main drive (Nut drive) unit

  • Hydraulic system that provides hydraulic pressure for the lifting devices and traction motor support device.

  • Main control panel that mounted on the frame.

  • Portable control unit for the lifting devices and traction motor support device.

  • Electrical cabinet

  • Movable rails for transporting rolling stock in to processing zone.

 

     Changeble tools and equipment:

  • Three pairs of cutters with carbide cutting elements for wheel sets 950, 1050 and 1220-1250 mm diameters.

  • Set of lifting heads, lock inserts and spacers for various types of the wheel sets
           

     Differences from existing analogues

  • Underframe design.
  • Using of standart serial gears in drives;
  • Using of the frequency inverters for drive motors control. It provides stepless ajustment of the feed and main drive speed (optional). Also it provides smooth start and stop of drives.
  • Using of the hydraulic station with electric control. It provides controlling of the lifting devices and traction motor support device from the portable unit.
  • Using of the standart cardan shafts in drives.