MTS Series 647 Hydraulic Wedge Grips - Manual (Page 17)

Description Item Description Item
All Temperature Grips B Axial Grips A
Water Cooling Lines 13 Load Unit Crosshead 1
Upper Grip Assembly 14 Force Transducer 2
Environmental Chamber 15 Shim 3
Lower Grip Assy 16 Spiral Washer Set 4
Water Cooling Lines 17 Connector Stud 5
Axial/Torsional Grips C Upper Grip 6
Adapter Plate 18 Hydraulic Pressure and return Lines 7
Upper Coupling 19 Wedges (647.250 includes wedge
liners) 8
Left Hand Thread 20 Specimen Guide 9
Right Hand Thread 21 Lower Grip 10
Left Hand Thread 22 Load Unit Base 11
Lower Coupling 23 Actuator Rod 12
Right Hand Thread 24
Description Item
Provides the structure to mount the grips and other components in
the force train. It is also the reaction mass for the force train. The grips
are mounted to the force transducer and actuator rod in the load unit. Load unit
• Crosshead and Base
Plate
• Some load units have the actuator mounted in the base plate and
the force transducer mounted to the crosshead.
• Some load units have the force transducer mounted in the base
plate and the actuator mounted to the crosshead.
Measures the axial forces applied to the specimen. An axial-torsional
version also measures the rotational forces applied to the specimen. Force Transducer
Clamps a specimen in place. The grips house the wedges and the
hydraulic components that operate the grips. Upper and lower grips
The grip assemblies of the all-temperature grips have the components
separated so those components most affected by extreme
temperatures are located outside the extreme environment.
Ports the hydraulic fluid to and from the grips. The hydraulic fluid
comes from a system hydraulic power unit (HPU) or a dedicated Hydraulic pressure and
return lines
Series 647 Hydraulic Wedge Grips Reference Manual 17
Introduction