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INDEX
UNIMAT SPLIT HEAD 275 MFI
INTRODUCTION
MULTI PURPOSE LIFTING, LINING AND TAMPING
MACHINE FOR PLAIN LINE TRACK AND TURNOUTS
TAMPING UNIT :Four independent split- head
WORKING PRINCIPLE :Tamping units with total of 16 tamping tines
stuffing pressures adjustable in the cabin
MEASURING SYSTEM : 3-point measuring system
MACHINE : 56901
YEAR OF CONSTRUCTION : 2021
Points & Crossing Tamping Machines
Working over Indian Railways
Point & Crossing Tamping
Machine
UNIMAT
UNIMAT-2S UNIMAT-3S UNIMAT-4S
MPT MFI/SHMFI
History of Points and crossing Machines in India
UNIMAT-07-275
First 07-series type
points & crossings
tamper
UNIMAT-08-275
First 08-series type
points & crossings
tamper
UNIMAT 08-275-3S
1993-94
UNIMAT-08-475-4S
1999
1984
1989-90
MPT Most Sophisticated
P&C Tamping
Machine.
2009
MFI/ SH MFI
• MFI:
Multifunction India
• SHMFI:
Split Head MFI
2012
Multi Purpose Tamper
Necessity of Mechanized Maintenance of
Points and Crossing
Faster deterioration of the track geometry due to:
 Constraining forces at the check rails
 Difference in cross levels at the points
For the Points & crossings:
 The difficulty to lift, align and pack the tracks due to heavy track structure
 Closer sleeper spacing
 Break in the continuity of rails at the crossing,
 Subjected to high level of lateral forces.
 Lesser duration of block-availability for maintenance
 Most vulnerable to derailment

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MFI Group-V.pptx

  • 3. INTRODUCTION MULTI PURPOSE LIFTING, LINING AND TAMPING MACHINE FOR PLAIN LINE TRACK AND TURNOUTS TAMPING UNIT :Four independent split- head WORKING PRINCIPLE :Tamping units with total of 16 tamping tines stuffing pressures adjustable in the cabin MEASURING SYSTEM : 3-point measuring system MACHINE : 56901 YEAR OF CONSTRUCTION : 2021
  • 4. Points & Crossing Tamping Machines Working over Indian Railways Point & Crossing Tamping Machine UNIMAT UNIMAT-2S UNIMAT-3S UNIMAT-4S MPT MFI/SHMFI
  • 5. History of Points and crossing Machines in India UNIMAT-07-275 First 07-series type points & crossings tamper UNIMAT-08-275 First 08-series type points & crossings tamper UNIMAT 08-275-3S 1993-94 UNIMAT-08-475-4S 1999 1984 1989-90 MPT Most Sophisticated P&C Tamping Machine. 2009 MFI/ SH MFI • MFI: Multifunction India • SHMFI: Split Head MFI 2012 Multi Purpose Tamper
  • 6. Necessity of Mechanized Maintenance of Points and Crossing Faster deterioration of the track geometry due to:  Constraining forces at the check rails  Difference in cross levels at the points For the Points & crossings:  The difficulty to lift, align and pack the tracks due to heavy track structure  Closer sleeper spacing  Break in the continuity of rails at the crossing,  Subjected to high level of lateral forces.  Lesser duration of block-availability for maintenance  Most vulnerable to derailment
  • 7. Difference between UNIMAT and MFI: UNIMAT MFI Especially for points & crossings tamping. It is used for spot tamping i.e. both turn out and plain track. It has three cabins. It has only two cabins. It has no jib crane. It has jib crane of 2 Ton capacity. It has third rail lifting and tamping arrangement. It has no third rail lifting and tamping arrangement. All UNIMAT working direction is reverse. Old MFI working direction is same as UNIMAT while New MFI working direction is forward. For working two operators are required. For working only one operator is required.
  • 8. Comparison between New and Old Series: OLD MFI (MPT-Multi Purpose Tamping) NEW MFI (Multi Functioning for India) Old series MPT has 8.5 degree axial movement in tamping unit . New series MPT has not axial movement facility. Old Series has no roller clamps New series has roller clamps In old series MPT working direction is reverse. In New Series MPT working direction is forward. Old series MPT has no ALC New Series MPT has ALC. Old series MPT (UNIMAT COMPACT) in Indian railways is MPT-2000 to 2008. New Series MPT (UNIMAT SH MFI ) UNIMAT Split Head Multi Functioning for India is 2009 to 2016. Old series MPT has tool tiltable tamping unit New series MPT has split head tamping unit. Old series has a small 1 tonne capacity crane for loading and unloading Rail pieces of about 6.5 meter long. New Series MPT has a small 2 tonne capacity crane for loading and unloading Rail pieces of about 6.5 meter long.
  • 9. Features of MFI The Plasser India tamping machine UNIMAT SH MFI is a five axle, diesel-hydraulic, self- propelled auxiliary permanent-way vehicle. This machine has been specifically adapted to meet Indian conditions and is suitable for tamping of plain tracks as well as Points and Crossings. The Machine is equipped with:- • Two cabins (and two driver’s desks). • A water-cooled 6-cylinder diesel engine of the latest generation. • A hydrodynamic driving with ZF gear box. • A manually operated emergency pump. • A Split head tamping unit for Points and Crossings. • A lifting and lining unit with an additional lifting hook. • A 3-point measuring system.
  • 10. 28742 3782 12000 TECHNICAL DATA DIMENSIONS: • OVERALL LENGTH(frame) • OVERALL HEIGHT (with air conditioning) • OVERALL WIDTH :28742 mm :3782 mm :2995 mm
  • 11. • NUMBER OF WHEEL SETS • BOGIE 1 TO BOGIE 2 • BOGIE BASE • WHEEL DIAMETER, NEW • WHEEL DIAMETER, WORN • DELIVERED TRACK GAUGE • TOTAL WEIGHT WITH TRACK GAUGE 1676 :5 Sets :12000 mm :1830 mm :850 mm :790 mm :1676 mm :68 tonne UNDERCARRIAGE:
  • 12. 1. Front sensing device and tensioning trolley 2. Fuel tank 3. Hydraulic tank 4. Combined lifting and lining device 5. Central sensing device and lining trolley 6. Tamping bank 7. Rear sensing device and tensioning trolley
  • 13. Power Transmission Units Engine ZF Hydrodynamic Gear Box Distribution Gear Box Reduction Gear Box Axle
  • 14. FUEL TANK CAPACITY MAIN ENGINE RATED POWER ENGINE :Approx. 1400 ltr :Cummins QSN- 14 L :405 HP at 2100 RPM
  • 16. Power Transmission Engine ZF gear box Distributer & Reduction gear box Axle Hydraulic motor Hyd motor Axle gear box
  • 17. Power Transmission :Driving ENGINE P3 P2 Distribution Gear Box cum Reduction G.B Z F Gear Box C/S C/S IC/S C/S C/S Driving bogie Running bogie Engine Radiator Axle Gear Box P1 PTO PTO IBT M 02Nos. AC M
  • 18. Power Transmission :Working ENGINE P3 P2 Distribution Gear Box cum Reduction G.B Z F Gear Box C/S C/S IC/S C/S C/S Driving bogie Running bogie Engine Radiator Axle Gear Box P1 PTO PTO IBT M 02Nos. AC M
  • 19. Z.F Hydrodynamic Gear Box:- • Works on the principle of fluid coupling. • Has a hydraulic clutch system, which can be engaged / disengaged electro-hydraulically. • Provides eight speeds (four forward & four reverse) on machine. • Used for the purpose of power transmission. • Power is taken from ZF gear box and distributed to different axles by cordon shafts. Distribution Gear Box:- TRANSMISSION MODEL:Hydrodynamic with ZF Gear Box Model 3WG310
  • 21. Axles:- It gives movement to the machine. There are five axles in MFI machine. Driving axle: – It is the power axle during travelling mode. Running axle – It is idle axle fitted in main frame. One axle hydraulic motor is fitted which gives power during working for sleeper to sleeper movement. Due to this motor on axle increases the pickup and increases the efficiency of machine.
  • 22. THE OPERATIONAL MODE DRIVING MODE:- The machine runs self-propelled driven hydro-dynamically by ZF. Both axles (axle 1&2) of the front bogie will be driven. The maximum driving speed is 80 km/h. WORKING MODE:-  Both axles of the front bogie and the third axle of the rear bogie(axel 1,2&3) are driven hydraulically by a fixed displacement motor.
  • 23. WORKING PRINCIPLE FOR TAMPING MACHINES: MFI machine can perform following important functions on track: 1. Lining correction 2. Longitudinal Level correction 3. Cross Level correction After doing all above function simultaneously, MFI tamps (packs) the sleepers to achieve longer retention period for improved track geometry. For doing the aforesaid functions, three systems are mainly used in MFI. These systems are as under : (a) Lining system is used for lining correction. (b) Levelling system is used for longitudinal level correction, cross level correction (c) Tamping system is used for packing of sleeper.
  • 24. 1. Lining system • MFI measures errors against only one rail and rectify that rail i.e. datum rail. • Other rail is fixed with the sleeper hence errors of that rail is also rectified. • During alignment MFI machine corrects versine. The versine of straight track is zero and versine on curved track depends on radius of Curves, measuring chord length and method of measurement. Technical Data: Lining measuring system 3-point Rear tightening trolley - measuring trolley Measuring trolley - Lining trolley Lining trolley-front tightening trolley Rear tightening trolley - front tightening trolley RT-3-24900 5.00m 6.05 m 11.20m 22.25 m
  • 25. Lining trolley 1. Lining transducer 2. Lining trolley datum cyl3. Lining chord wire Machine Middle Lining Trolley 1. Lining Trolley lock unlock indicating Sensor 2. Working Pendulum
  • 27. 2. Levelling system Principle of Levelling: • It is based on the principle that on the basis of two reference level, level of other point in between may be found and corrected. • In MFI rear levelling trolley with the levelling chord end is on the corrected fault free track and the front chord point is adjusted to the target level. Thus front & rear chord ends become reference level. • The height transducer is situated at place of work and sense the actual level of track at working area and during working, the track is lifted to the target level. Technical Data: Correction values table Front feeler - middle feeler Middle feeler - Rear feeler Leveling chord total length NT-134 11.20 m 6.05m 17.25 m
  • 28. As there is only lifting facility in MFI, two important factors should be kept in mind as under :- 1)Selection of Base Rail: For carrying out attention to longitudinal profile, one rail is kept as Base or Datum Rail. MFI corrects cross-level w.r.t. Base Rail. It should be selected as under:  On straight track in single line and middle track in multiple lines, higher/less disturbed rail is kept as Base Rail.  On straight track in double line, non-cess rail is kept as Base Rail.  On curves, inner-rail is kept as Base Rail Base rail is to be selected with the help of cant selector switch which is provided in working cabin near cant potentiometer. In MFI, direction of Cant Selector Switch is to be always kept opposite to the Base Rail
  • 29. 2)Selection of General Lift: The amount of lift, which is given to track while tamping to cover all undulations over the Base Rail, is called General Lift. It is decided on the magnitude of the dips/peaks generally available in the track. 3) Max. & Min amount of General Lift:  At one time, General Lift value should not exceed 50 mm.  If more than 50 mm lift is required, it can be achieved by more insertion.  Minimum General Lift should not be less than 20 mm. 4) Ramp up & Ramp down of General lift: • Ramping up & down is given @ 1 In 1000
  • 31. Switch Tamping machines:-  The distance between the roller clamps and the low edge of the railhead should be max. 3 –5 mm. The rail condition and the rail angle of inclination should be taken into account  Care should be taken that the two lifting disks are always exactly level with each other Lifting Unit
  • 33. 5. Sol. Valve roller clamp LH Outer 6. Sol. Valve RH hook lifting/lower 7. Sol. Valve LH hook lifting/lower 8. Sol. Valve LH hook Inward/outward 9. Sol. Valve RH hook Inward/outward Machine Middle Lifting Unit Area 1. Junction Box B-69 2. Sol. Valve roller clamp RH Outer 3. Sol. Valve roller clamp RH Inner 4. Sol. Valve roller clamp LH inner
  • 34. Machine Middle Lifting Unit Area LHS 1. Junction box Remote control 2. Warning box 3. Hook cylinder Lifting/lowering 4. Lining cylinder Machine Middle Lifting Unit Area RHS 1. Lifting unit lock Sensor 2. Warning box, Emergency stop & Horn 3. Lifting unit chain lock 4. Lifting unit cylinder
  • 36. (3) TAMPING SYSTEM:  To ensure all conditions for readiness of track system are met.  The production of:  For better load distribution over sleepers.  Evenly compacted  Load bearing of sleepers.  The production of:  Durable track stability,  Avoiding fast,  Irreversible decline of quality WHY IS TAMPING CARRIED OUT?
  • 38. 1. ASYNCHRONOUS UNIFORM PRESSURE TAMPING:  All tamping tines apply the same pressure to the ballast  It performs a “squeezing” action.  The movement sinusoidal vibration is superimposed. 2. THE COMPACTION PROCESS:  The frequency (35 Hz) , amplitude (5 mm), relevant speed and squeezing force of the tools determines stabilising quality (compaction) of the ballast.  result in an even and forceful uplift action.  Ballast consolidation by impulse as a result of squeezing speed and time. TAMPING PRINCIPLE
  • 39. TAMPING PRINCIPLE 3. AFFECT OF LIFT ON THE TAMPING PROCESS:  Lift precedes the tamping. The lift creates voids under the sleepers, which enables the ballast bed to form a new structure.  No lift, or insufficient basic lift, prevents a satisfactory structure.  Insufficient or no lift prevents effective rearranging of the ballast and will lead to very unevenly compacted sleeper beds.  Too large a lift cannot produce an evenly compressed, load bearing ballast structure, due to the limited working area of the tamping instruments.
  • 40. Tamping Pressure:-  Optimal tamping pressure values are between 115 -125 bar.  PLASSER & THEURER tamping units allow the adjustment of the units to the tamping pressure of the individual ballast conditions. Tamping pressure setting potentiometer
  • 41. TAMPING PRINCIPLE 4. TAMPING DEPTH:  • The tamping depth has a great practical influence on the compaction of the ballast under the sleeper.  • At too narrow a depth, no compaction will be achieved and damage will be caused to sleepers and tamping tines.  • Too great a depth will lead to uneven and incomplete compaction.  • The optimum range lies at 15-20 mm free space between top of tine and bottom of sleeper 5. SQUEEZE TIME:  The optimum duration will lie at around 0.8 to 1.2 seconds
  • 42. Tamping unit • It has 4nos. of tamping tools. • The tool holding parts may move inside or outside with the help of tool tilting cylinder, by this arrangement each tamping tool may be tilted 15⁰ inside and 85⁰ outside. • It tamps one sleeper at a time.
  • 43. Machine Tamping Unit Area 1. Tamping unit Vibration motor 2. Tamping unit Squeezing cylinder 3. Clapper cylinder 4. Tamping unit lifting/ lowering cylinder Machine Tamping Unit Locking Arrangement: 1. Tamping unit lock 2. Tamping unit Transducer 3. Tamping unit locked indicating sensor 4. Tamping unit lock operating pneumatic cylinder
  • 44. Operation of Clapper Cylinder 1. Tyne arm bearing liberating oil level indicator 2. Pneumatic cylinder for operating clapper 3. clapper 1. Pneumatic valve for operating clapper cylinder of inside tamping unit 2. Pneumatic valve for operating clapper cylinder of outside tamping unit
  • 45. 1. Tamping unit Vibration motor 2. Tamping unit Squeezing cylinder 3. Clapper cylinder 4. Tamping unit lifting/ lowering cylinder
  • 47. Components of hyd. System • Hyd. Reservoir/hyd.tank • Hyd. Hoses. • Hyd. filters. • Hyd. Pump • Hyd. Valves • Hyd. Actuators (Hyd motor/Cylinder) • Hyd. Accumulator.
  • 48. Engine ZF Gear Box 35 35 17 14 14 06 03 22 38 ZF Cooler Hyd Oil Cooler Air Condition Crane Accumulator Vibration (L side) Vibration (R side) B accumulator Accumulator Description of Hydraulic Pumps
  • 49. 1. 2nd Squeezing pressure valve 2. Counter pressure valve with reducing valve for RHS track lifting cylinder adjusted to 15 bar 3. Counter pressure valve with reducing valve for LHS track lifting cylinder adjusted to 15 bar
  • 50. Pump (capacity GPM) Working Pressure (bar) Work 03*22*38 3 300 Crane 22 210 Accumulator 38 210 Accumulator 35*35*17 35 210 Vibration (L side) 35 210 Vibration (R side) 17 210 B-accumulator 14*14*06 14 210 ZF Cooler 14 210 Hyd. oil cooler 6 300 Air condition Pump Description 1. Hydraulic Triple pump
  • 51. Hyd. Motor Description Sl. No. Motor Qty. 1 Hydraulic Motor (for work drive) 2 2 Hydraulic Motor air-conditioning 1 3 Hydraulic Motor(ZF fan blade motor) 1 4 Hydraulic Motor (for hydraulic oil cooler) 2 5 Hydraulic Motor for vibration(LHS) 2 6 Hydraulic Motor for vibration(RHS) 2
  • 52. Sl. No. Accumulator Capacity Nitrogen Pressure Quantity Work 1 32 Litre 85 bar 2 Nos. For System 2 20 Litre 85 bar 1 No For big squeezing Accumulators Description
  • 53. Sl. No. Valve Quantity Work 1 Proportional Valve 2 Nos. Tamping unit operation l.s.h 2 Nos. Tamping unit operation r.s.h 2 Servo Valve 2 Nos. For Track Lifting 1 No. For Lining Special Valves Filters Description Sl No. Filters Quantity 1 Servo filter 2 2 Suction Filter 3 3 Return Filter 2 4 Proportional filter 1 5 ZF filter 1
  • 54. 1. Servo valve lining 2. Servo valve lifting LHS 3. Servo valve lifting RHS
  • 55. 1. RHS inner Tamping unit up/down proportional valve 2. RHS outer Tamping unit up/down proportional valve
  • 56. Pneumatic System Applications in MFI: 1. For Brake System 2. For locking and unlocking of trolleys 3. Lifting & Lowering of Trolleys 4. Lining and levelling cord tension wiper 5. For horn 6. For datum
  • 57. Sl. Components Qty. Capacity/ Spec. 1 Air Reservoir 3 nos. 100 liter each 2 Air Compressor (To Engine) 1 no. 30 cum/minute 3 Air Drier 1 no. 2 Chamber drier 24V DC 4 Brake cylinder 2 nos. Dia. = 12 inch. 5 Pneumatic cylinder 48 nos. 6 Solenoid valves 12 nos. Major Components:
  • 58. 1. Braking System: Major Components Capacity/ Spec. Main brake pipe Brake pressure: 5 bar Stop cock with hose and coupling 2 in the front, 2 in the rear of the machine Direct-acting brake Brake pressure: 3.8 bar Electro-pneumatic additional brake unit (2-circuit brake) Indirect-acting brake Brake pressure: 3.8 bar Brake valve: KE 1DV-SL Brake blocks 1 brake block per wheel Type: WN 146-850.K-5
  • 60. WORKING CIRCUIT: From air tank, air passes through water separator which is provided in the outlet line of air reservoir. This removes the moisture from the air. Now dry air passes to air oiler where lubricating oil is filled for lubrication of air. Lubricated air then flows to solenoid operated D.C. valves & actuators for working pneumatic system.
  • 61. 2. Locking and unlocking of trolleys: 1. Front tightening trolley locking/ unlocking 2. Measuring trolley locking/ unlocking 3. Lining locking / unlocking 4. Rear tightening trolley locking/ unlocking 3. Lifting & Lowering of Trolleys: 1. Front tightening trolley lifting/ lowering 2. Measuring trolley lifting/ lowering 3. Tamping Tools lifting/ lowering 4. Lining lifting/ lowering 5. Rear tightening trolley lifting/ lowering
  • 62. 4. Lining and levelling cord tension wiper: 1. Levelling chord tensioning 2. Lining chord tensioning 5. Pneumatic Horn: 1. One pneumatic horn at front cabin roof top 2. One pneumatic horn at rear cabin roof top 6. Datum 1. Pn. Sol. Valve for datum pressure of front tightening trolley 2. Pn. Sol. Valve for datum pressure of measuring trolley 3. Pn. Sol. Valve for datum pressure of rear tightening trolley
  • 63. Major Pneumatic Maintenances:  If the brake cylinder piston throw exceeds beyond its tolerance limit ( 5-7 mm) the brake force decreases Brake can’t be applied Brake-block play increases  The brake block play has to be re-adjusted, when:  the break block play is not between 5-7 mm.  the brake blocks are replaced  the brake blocks are worn out on one side  the wheel profile had been re-worked  Therefore:  Please pay attention to the decreased braking effect after replacing the brake blocks, if these are unworked or not run in.  Do not change all brake blocks at once (e.g. in two stages).  Carry out a brake test whenever change brake blocks.  Brake block play (distance between the brake block bottom and the wheel tread):
  • 64. ELECTRICAL EQUIPMENT Alternator - Engine 1 piece, 28V DC; 140 A Batteries Main battery 4 pieces 12V DC; 100 Ah Program control battery 2 pieces 12V DC, 100 Ah Air condition units 1 piece in each cabin
  • 65. Electrical & Electronics system includes  Battery  Alternator  Transducers  Printed ckt boards- pcb  Micro-Controllers  Automatischer leit computer(Alc)  Computer measuring sys.- cms  Computer working system- cws  Sps analysis
  • 66. • BATTERY: SIX BATTERIES ARE PROVIDED SR. NO. BATTERY QUANTITY RATING 1 MAIN BATTERIES 4 12V/100AH 2 PROGRAMMING BATTERIES 2 12V/100AH 1. BATTERY MAIN KEY SWITCH 2. BATTREY BOX
  • 67. • ALTERNATOR: 1 NO. , 28V DC, 140 A • It is used to charge the battery. • Alternator initially generates AC • AC is converted to DC by the rectifier. • Output of alternator is 27-28v DC
  • 68. TRANSDUCER • In Track Machines Transducers are used to convert track parameters (Cross Level, Long. level, Versine) and Mechanical linear displacement (Tamping Unit, Satellites, Hook etc.) to electrical signal. • In machines transducers are potentiometer type which is basically a variable resistance which shaft is rotated by mechanical arrangement and it generates electrical signal as per deflection Big Gear Attached With Potentiometer Small Gear Attached with Pulley Electrical wire Red (+10V) Blue (-10V) Yellow (output)
  • 69. LOCATION OF POTENTIOMETER 1. Front input potentiometer for versine 2. Front input potentiometer for slew 3. Front input potentiometer for super elevation 4. Front input potentiometer for general Lift/ level correction S.N. Potentiometer Where Required Location 1 General Lift On plain track & curves Front Cabin 2 Slew On plain track & curves Front Cabin 3 Versine On curves Front Cabin 4 Super elevation On curves Working Cabin
  • 70. Transducer Connected in UNIMAT SH MFI M/c SR. NO. TRANSDUCER QUANTITY 1 Tamping Depth Transducer 2 2 Height Transducer 2 3 Versine Transducer 2 4 Pendulum 3 5 Lifting Lining Combined Transducer 1 6 Hook Transducer 2
  • 71. SR. NO. PART NO. FUNCTION QUANT ITY LOCATION PANAL BOX NO. 1 EK-819-SV-00/GT Power Supply DC to DC Converter 24v-+24V &+12V 4 B136-2 B6-2 2 EK-207V-00B Multi Check 1 B136 3 ELB-KR0-04 Analog Lining 1 B136 4 EK-2140LV-00 Output Stage & Lining 1 B136 5 EK-1.1/5LV2-00 Lining Control compensation 1 B136 6 EK-120V-00 Hook control & 3 Stage Lining 1 B136 Printed Circuit Board PCBs
  • 73. SR. NO. PART NO. FUNCTION QUANTIT Y LOCATION PANAL BOX NO. 7 EK-602E-002 Relay 2 B6-1 B136-1 8 EK-3069LV-00A Leveling LHS & RHS 1 B6 9 EK-2351LV-00 Pendulum 1 B6 10 EK-637MC-00B/244 Settlement compensation 1 B6 11 EIB-KV-00 Tamping Unit UP/Down Control 4 B6
  • 75. OBJECTIVE To enhance and improve the performance of lining and lifting systems to meet highest Degree of precision. For this “Win-ALC” Software was developed for easy & efficient usage for the machine operator. Geometry and correction data can be input graphically or in table form or the data can be read in from storage media provided by the infrastructure operator.
  • 76. 1. ALC Screen 2. ALC-CPU ALC-Key Board
  • 77. Modes of operation The automatic guiding computer (ALC) has two main areas of application: 1. The guidance of the leveling and lining system according to known target geometry 2. The measuring of the actual track geometry with subsequent calculation of the improved course of the new track geometry.
  • 79. BENEFITS  Robust hardware for the harsh environmental conditions on tamping machines (VIBRATIONS)  Specially developed & constantly updated software.  Varied uses depending on the track situation.  Communication & exchange of data with other applications (e.g. DRP).  Direct import of correction data values from various surveying trolleys (Trimble, Amberg, etc.)  Results easily stored & printed
  • 80. Introduction  The analogue measurement system, which was in use up to now, was replaced by a new combined digital / analogue system developed on the base our well-tried micro-controllers.  This system comprises the lining unit, the levelling unit with super-elevation control and, if required, the combined laser receiver unit.  CMS also displays real time track parameter data so that actual correction done can be evaluated.  It also displays any fault occurring in its system (Diagnosis).
  • 83. introduction • CWS is used for controlling the working system of machine i.e. control the flow of current for proportional valves associated with tamping n driving. • CWS is a digitalised method of processing data which are received from various inputs. • CWS also displays real time data of working system of machine (Driving, Tamping and Squeezing) so that actual correction done can be evaluated. • It can also be used to identify any faults occurring in its system (Diagnose).
  • 85. F Controller operation via terminal: Current working speed (Input - distance measuring wheel) Average working speed Press the “service" key to shift to the detailed display. The button shows yellow when detailed view is active. Additional engine speed Tamping depth (Manual input) % of the selected accelerator Main Engine Speed Input Driving enabling Forward / backward driving 1. Driving mode symbol (working mode drive)
  • 86. Adapter (Power Board) Microcontroller 8 Digital outputs 8 Digital inputs Power output to servo valves Analogue inputs from transducers, potentiometer etc. 8 analog inputs 8 analog outputs Signal flow diagram
  • 88. By clicking the diagnosis icon the diagnosis window with the indices ‚monitor I/O’ and logical analysis’ appears: SPS- Diagnosis