Post on 22-May-2020
TEST SYSTEMS FOR TRACTOR INDUSTRY
Control Valve Test Rig Motoring Test Bench Seat Test System TestPAC PressurePAC HPR Test Rig
Anything�.Possible
Neometrix Engineering (P) Limited
A BRIEF Company Profile
Neometrix Engineering Pvt. Ltd. is a complete engineering solutions company based in New Delhi/ NOIDA.
We specialize in CUSTOM BUILT High Technology Defence Engineering Solutions. We have expertise in various engineering domains like High Pressure Gas Systems, Hydraulics, Servo Hydraulics, ATF, Mechanical, Oxygen/ Helium (High Purity Gases), Electronics/ Electrical Test Benches, and Complete PC Based Automation Solutions. We have experts in Mechanical Engineering, Electrical/ Instrumentation Engineering, Software, Civil Engineering, Aeronautical engineering and other engineering fields. The company has a team of ~50 highly qualified graduate engineers and has an experience of more than 300 successfully delivered engineering systems/ projects. We are very closely working with Indian Air Force, Indian Navy, HAL, Indian Army, Defence Establishments (DRDO labs), nuclear establishments etc. The founders of the company are graduates from IIT Kanpur and the company remains very closely linked with IITs. We utilize the expertise available there as and when required. Neometrix is working with IIT professors on several consultancy projects. We take extensive consultancy support from IIT. Neometrix has an extensive VENDOR Base in NOIDA/New Delhi (NCR Region) and complete system integration is implemented at its NOIDA facilities. With such alliances and our own detail engineering capabilities, we are in a position to deliver state of the art world class Engineering Systems and services to our valued customers. Neometrix owns office facility of 10,000 sq. feet state of the art office infrastructure and 4500 Sq. feet factory shed.
CONTROL VALVE TEST BENCH FOR TRACTOR INDUSTRY
INDUSTRY - AUTOMOTIVE/TRACTORS
HYDRAULICS & SERVO HYDRAULICS / DAQ & DAS AUTOMATION APPLICATION - TESTING
PURPOSE: Control Valve Test Bench is used to Test the Control Valve of tractors for its performance.
The test rig may be used for endurance as per the specification required in assembly line.
Specification / Parameter Value
Maximum Working Pressure 230 Bar
Variable Flow (Using VFD) 5-46 LPM
VFD
(Variable Frequency Drive)
38 Amps (ABB-ACS-550)
Oil Cleanliness level Better Than NASS class
7
Heating Facility 8 KW
Air cooling capacity 4 KW (Heat)
Specification / Parameter Value
Max. working pressure 210 Bar
Flow 10 LPM & 100 LPM
Variable load facility 800-3000 kg
Air cooling capacity 4 KW (Heat)
UUT (Unit under Test) Hydraulic
System- max W.P- 230 Bar, Variable flow
0-46 LPM.
0- 3000 RPM VFD controlled 3-Phase
Electric Motor.
0- 3000 Kg Hydraulic Load facility for
Draw Bar Load Application.
Automatic load selection through
software.
Separate Hydraulic Power Pack for UUT
supply and hydraulic load and hydraulic
clamping of test Unit.
Three load selections and three flow
selections for different models.
Duplex filtration system for on line
maintenance of hydraulic filters.
Heater and air cooling system with PID
controller to maintain temperature of
hydraulic oil during testing.
PC based DATA Acquisition system for
on line data monitoring, storage and
reporting.
Hydraulic actuator L-M guide for
automatic precise positioning and
clamping of control valve inside the rear
cover assembly.
Facility to mount three different models
of Control valve on single test bed. It may
be customized or your requirement.
At a time only one Control valve could be
tested on test bed.
Digital as well as manual calibrated
linear slide facility to measure Hydraulic
Neutral, Spool Reversal and DEAD BAND
of Control Valves.
TEST BENCH SPECIFICATIONS
Hydraulic Power Pack for Test UUT (Unit under Test) Supply
Hydraulic Power Pack for
Loading Draw Bar & Hydraulic Clamps
Data Acquisition System
CONTROL VALVE TEST BENCH FOR TRACTOR INDUSTRY
INDUSTRY - AUTOMOTIVE/TRACTORS
HYDRAULICS & SERVO HYDRAULICS / DAQ & DAS AUTOMATION APPLICATION - TESTING
NOTE: test rig can be customized to cover your specific testing requirements.
S.No. Description of Test Acceptance
Criteria
Dropping check : check as per SOP 0-0.5 mm
1 Lifting check : check lift time @ 5 LPM flow
(Flow Corresponding to low engine RPM)
Normal lifting &
Lowering (Yes/No)
2 Lifting check: check lifting time in max raise position with 16 LPM flow.
600mm travel of drawbar at working pressure of 105 bar
2-3 second
3 Lift check at RV Pressure : Check with instant travel of PC lever from down to
up position (Pressure , Time, Frequency)
Normal lifting &
Lowering (Yes/No)
4 Self-raising check at 16 LPM Self-raising
(Yes/No)
5 Neutral pressure at raise position: Check neutral pressure at 3-4 incremental
raised position of position lever
8-12 bar
6 Dead Band :Spool reverse travel from raise position to neutral pressure
position
0.3 � 0.5 mm
7 Spool reverse travel from raise position to neutral pressure position 0.1-0.15mm
8 Inching effect from neutral to incremental lifting, Effect visible at lower links
at each incremental travel of spool in the following cycle: Spool neutral
position �X� to �X/0.5� mm to neutral & repeat continuously in multiple steps
Yes/No
9 Lowering time from max raise position ( with working pressure of 90 to 100
bar)
1 second
10 Instant holding from neutral to incremental lowering Yes/No
11 Leakage from weld plugs @ 180 bar holding Zero Leak (yes/No)
TESTS WHICH CAN BE PERFORMED ON THE TEST BENCH
CONTROL VALVE TEST BENCH FOR TRACTOR INDUSTRY
INDUSTRY - AUTOMOTIVE/TRACTORS
HYDRAULICS & SERVO HYDRAULICS / DAQ & DAS AUTOMATION APPLICATION - TESTING
Mounting Unit Below the rear cover
Hydraulic Power Packs:
Hydraulic Power Pack for Unit Supply.
Hydraulic Power Pack for Loading & Hydraulic
Electric Control Panel Stand
Emergency shutdown switch.
ON/OFF switches for all operations under operator.
Easily moveable stand.
Data Acquisition & Control System
Computerized data acquisition Control systems
of National Instrument for measuring & reporting of all the
parameter for test bench.
Control Panel:
Data Acquisition & Control System including the touch monitors.
DRO�s for digital display of process parameters.
PC based NI DATA Acquisition System with PCI Cards.
Application software spread sheets developed on NI based LabView Platform.
DAS includes latest PC, 17� touch screen TFT Monitor, Keyboard, Mouse and a
Printer, UPS.
Control Valve Test Bed
Combine test bed for 3 models of control valves.
Polycarbonate transparent covers for safety and visual inspection.
Linier slide with digital dial gauge for Dead Band Testing.
Hydraulic clamps to automatically tighten the assembly while testing.
TEST BENCH DETAILS (SUBSYSTEMS)
CONTROL VALVE TEST BENCH FOR TRACTOR INDUSTRY
INDUSTRY - AUTOMOTIVE/TRACTORS
HYDRAULICS & SERVO HYDRAULICS / DAQ & DAS AUTOMATION APPLICATION - TESTING
REAR COVER ASSEMBLY TEST BENCH FOR TRACTOR INDUSTRY
INDUSTRY - AUTOMOTIVE/TRACTORS
Specification Description
Max. working pressure 210 bar
Flow 10 LPM & 100 LPM
Variable load facility 800-3000 kg
Air cooling system 4 kw
Specification Description
Max. working pressure 230 bar
Variable Flow 5-46 LPM
VFD
(variable frequency drive)
38 Amps (ABB-ACS-
550)
Oil Cleanliness level Below NASS class 7
Heating Facility 4 kw
Air cooling system 4 kw
UUT (Unit under Test) Hydraulic System-
max W.P- 230 Bar, Variable flow 0-46 LPM.
0- 3000 RPM VFD controlled 3-Phase Electric
Motor.
0- 3000 Kg Hydraulic Load facility for Draw
Bar Load Application.
Automatic load selection through software.
Separate Hydraulic Power Pack for UUT
supply and hydraulic load and hydraulic
clamping of test Unit.
Three load selections and three flow
selections for different models.
Duplex filtration system for on line
maintenance of hydraulic filters.
Heater and air cooling system with PID
controller to maintain temperature of
hydraulic oil during testing.
PC based DATA Acquisition system for on
line data monitoring, storage and reporting.
Hydraulic Power Pack for
Loading & Hydraulic Clamping
Hydraulic Power Pack for Test Unit Supply
TEST BENCH SPECIFICATIONS
REAR COVER ASSEMBLY TEST BENCH FOR TRACTOR INDUSTRY
INDUSTRY - AUTOMOTIVE/TRACTORS
HYDRAULICS & SERVO HYDRAULICS / DAQ & DAS AUTOMATION APPLICATION - TESTING
Description of Test Acceptance Criteria
Dropping check : check as per SOP 0-12 min
Lifting check : check lift time @ 5 LPM flow
(Flow Corresponding to low engine RPM)
Normal lifting &
Lowering
Lifting check: check lift time in max raise position with 16 LPM flow,600mm
travel of drawbar at working pressure of 105 bar
2-3 second
Lift check at RV Pressure : Check with instant travel of PC lever from down to
up position (pressure , time frequency)
Normal lifting &
Lowering
Self-raising check at 16 LPM Self-raising
Neutral pressure at raise position: Check neutral pressure at 3-4 incremental
raised position of position lever
3-8 bar
Tests which can be performed on the Test bench
REAR COVER ASSEMBLY TEST BENCH FOR TRACTOR INDUSTRY
INDUSTRY - AUTOMOTIVE/TRACTORS
HYDRAULICS & SERVO HYDRAULICS / DAQ & DAS AUTOMATION APPLICATION - TESTING
Inching effect from neutral to incremental lifting, effect visible at lower links at
each incremental travel of spool in the following cycle: Spool neutral position
�X� to �X-0.5� mm to neutral & repeat continuously in multiple steps
Yes/No
Instant holding from neutral to increamental lowering Yes/No
Rear Cover Assembly Test Bed
Profile of matching the rear cover rests.
Heavy/Sturdy tank having magnetic catcher & SS tray for chip
removal.
Hydraulic Swing clamps to automatically tighten the assembly
while testing.
TEST BENCH DETAILS (SUBSYSTEMS)
REAR COVER ASSEMBLY TEST BENCH FOR TRACTOR INDUSTRY
INDUSTRY - AUTOMOTIVE/TRACTORS
HYDRAULICS & SERVO HYDRAULICS / DAQ & DAS AUTOMATION APPLICATION - TESTING
Touch panel screen for ease of indication & controlling.
Two different systems provided one for gripping the rear
cover and other for loading.
Pressure control with unloading facility is provided.
Flow divider is used to feed actuators.
Data Acquisition & Control System
Computerized data acquisition Control systems of National
Instrument for measuring & reporting of all the parameter for
test bench.
Hydraulic Power Packs:
Hydraulic Power Pack for Unit Supply.
Hydraulic Power Pack for Loading & Hydraulic
HYDRAULICS & SERVO HYDRAULICS / DAQ & DAS AUTOMATION APPLICATION - TESTING