ANVIL Series Transmission Headstand Mount Rotating Thrust-Meter

OVERVIEW OF MEASUREMENT SYSTEM

Type of Measurement: Torque Converter Thrust from an Automotive Transmission

Typical Test: Electric Motor Driven Automotive Transmission Testing Dynamometer
 

• Resolution accuracy: 0.02 % ( 1 part in 5,000 )
• Fatigue Life:100 Million Cycles
• Temperature Range: -25 ºF to +225 ºF
• Calibration Repeatability: 0.02 %
• Test Environment: Dyno Lab
• Maximum Crosstalk Error: 1%

 

Special Test Conditions:

• Torsional Loading between rotating flange and stationary housing
• Possible High Temperature that exceeds Torque-Meter Temperature Rating
• Possible Presence of Automatic Transmission Fluids
• Possible High Magnetic & Electric Fields from Dyno Motors
• Possible Bending Moment from supporting Torque Converter or Clutch Ass'y

 

Torque Capacity / Torsional Overload / Extraneous Loads / Maximum RPM:
 

	Rated Capacity : 2,000 lbs.		Rated Capacity : 3,000 lbs.
	Working Capacity : 1,200 lbs.		Working Capacity : 3,000 lbs.
	Peak Torque : 600 ft.-lbs.		Peak Torque : 1,000 ft.-lbs.
	Overload Rating : 3,000 ft.-lbs.		Overload Rating : 4,500 ft.-lbs.
	Maximum RPM : 12,000		Maximum RPM : 6,000

Thrust-Meter Features:

• Torque-Meter Mechanical Output is an Integral Flange with a Bearing Arrangement Engineered to take the Bending Moment & Thrust Loading from a Transmission Torque Converter or Clutch Ass'y
• Heat Treated Housing with an Integral Flange Mount for Mechanical Rigidity and Reduced Fretting Corrosion at the Load Bearing Surfaces
• Optional Excitation Carrier Frequencies of 3kHz, 3.28kHz, 5kHz, 10kHz, 20kHz
• Thermocouple ports for Monitoring of Bearing Temperatures
• Accelerometer Mounting Surfaces for Monitoring Alignment, Balance & Resonance Vibration
• Cross-talk compensated for Torsional & Bending Moment Loadss

Thrust-Meter Description:

     Rotary Thrust-meter is designed to be integrated into a dynamometer driven, automotive automatic transmission test stand. Thrust-meter measures torque converter thrust while under rotation. One end of the thrust-meter has a shaft which is fixtured to the dynamometer shaft via a double-flex coupling. The other thrust-meter end, simulates a crankshaft flange, to which a torque-converter flex plate can bolt to. Thrust-meter housing is heat treated for mechanical rigidity and reduced fretting corrosion at the load bearing surfaces. Housing has an integral circular flange that mounts to the headstand support for the transmission case. Headstand should be liquid cooled to remove the radiated heat from the transmission.

Thrust-meter uses passive strain gage technology on a rotating shaft. Mechanical stress is converted to strain which is transduced into a voltage signal via strain gages in a full wheatstone bridge arrangement. Communication between stationary and rotating worlds is performed via a rotary transformer. The rotary transformer requires an AC Excitation Voltage and transmits back an Amplitude Modulated Signal Voltage (mV) @ the Excitation Frequency, which is a measurement of the applied Thrust.

Thrust-Meter Options:

• Transformer Operating Frequencies of 3kHz, 3.28kHz, 5kHz, 10kHz or 20kHz.
• Bearing Thermocouple Probe Ass'y; Type J , Type K or Type T
• Housing Accelerometers
• Warning Sensors for Monitoring Alignment, Mass-Unbalance & Resonance Vibrations
• Speed Sensor or Angular Encoder

Thrust-Meter Specifications:

• Overload Capability : 150 % Typical
• Nominal Output @ Rated Capacity : 1 mV/V
• Excitation Voltage : 5 to 20 VAC @ ?kHz
• Excitation Loading Impedance : 100 Ohm
• Non-Repeatability : 0.05 % of rated output
• Max. Non-Linearity : 0.1 % of rated output
• Max. Hysteresis : 0.1 % of rated output
• Compensated Temperature Range : +70 to 225 ºF
• Useable Temperature Range : -25 to 225 ºF
• Temperature effect on Output : 0.002 % / ºF of rated output
• Temperature effect on Zero Balance : 0.002 % / ºF of rated output
• Min. Insulation Resistance : 5,000 Mega-Ohm
• Typical Zero Balance : 2 % of rated output