Series 315 Load Frame Product Information Manual Model 315.01 Model 315.02 Model 315.03 Model 315.
Copyright information Trademark information Contact information Publication information © 2002 MTS Systems Corporation. All rights reserved. MTS is a registered trademark of MTS Systems Corporation. MTS Systems Corporation 14000 Technology Drive Eden Prairie, Minnesota 55344-2290 USA Toll Free Phone: 800-328-2255 (within the U.S. or Canada) Phone: 952-937-4000 (outside the U.S. or Canada) Fax: 952-937-4515 E-mail: info@mts.com http://www.mts.
Contents Introduction 5 Component Identification 7 Functional Description 8 Specifications 10 Load Frame Dimensions 11 Floor Loading Footprint Dimensions Load Frame Stiffness Calculation 13 14 Installation 17 Lifting and Moving Instructions Connecting Cables 18 23 Connecting Hydraulics 24 Operation 25 Emergency Stop 25 Crush Point Hazards 26 Maintenance 27 Maintenance Intervals 28 Making Daily Inspections 29 Minimizing Rust 30 Methods for Various Surfaces 30 Checking the Accumulators’ Pre
Contents Series 315 Load Frame
Introduction The Series 315 Load Frames are designed to perform high-velocity tension or compression testing, high-frequency fatigue testing, as well as other tests. The load frame must be configured with optional actuators, servovalves, force transducers, grips, and other components from MTS Systems Corporation.
What you need to know Related products 6 Introduction This manual assumes that you know how to use your system controller. See the appropriate manual for information about performing any controller-related step in this manual’s procedures. You are expected to know how to do the following: • Turn system electrical power on and off • Turn hydraulic pressure on and off • Manually adjust the actuator position • Use your grips and fixtures The load frame includes other products.
Component Identification Hoist Rings Rigid Fixed Crosshead Retangular Columns Security Door Impact Resistant Lexan Panel Emergency Stop Button r 815 Rock Mechanics Test System Accessory Attachment Plates Fatigue Rated, Single-ended, Double-acting Actuator Stiff Base Plate Vibration Isolation Pads Series 315 Load Frame Introduction 7
Functional Description The load frame is a stand alone testing structure. The following paragraphs describe the components shown on the illustration in the “Component Identification” on page 7. Load Frame The load frame has an integrated construction that provides high stiffness, reducing deflection energy stored in the frame — ideal for testing brittle materials. The actuator is integrated into the base plate which decreases frame height and increases stiffness.
Servovalves Hydraulic distribution Servovalves regulate the direction and flow of the hydraulic fluid to and from a hydraulic actuator. The servovalve responds to the polarity and magnitude of the command signal generated by the controller. Hydraulic distribution includes a hydraulic manifold (also called an actuator manifold or hydraulic service manifold) which controls the hydraulic pressure to the load frame. The manifold includes solenoid valves that control the hydraulic pressure (off, low, or high).
Specifications Model 315.01 Model 315.02 Model 315.03 Model 315.04 kN 1600 2700 4600 4600 kip 350 600 1000 1000 kN 1050 1350 2300 2300 kip 240 300 500 500 mm 100 100 100 100 in 4 4 4 4 N/m 7.0 x 109 9.0 x 109 11.0 x 109 10.5 x 109 lb/in 4.0 x 107 5.0 x 107 6.3 x 107 6.0 x 107 mm 0.051 0.051 0.051 0.051 in 0.002 0.002 0.002 0.
Load Frame Dimensions E D H J L G A L J B C F M N K 815-315-02 Model 315 Load Frame Dimensions Series 315 Load Frame Introduction 11
Dimensions* Model 315.01 Model 315.02 Model 315.03 Model 315.04 mm mm mm mm in in in in A 2184 86 2337 92 2692 106 2972 117 B 711 28 914 36 1016 40 1143 45 C 483 19 610 24 737 29 737 29 D 686 27 864 34 953 37.5 1143 45 E 305 12 305 12 356 14 356 14 F 635 25 787 31 965 38 1041 41 G† 868 min 970 max 34.2 min 868 min 38.2 max 970 max 34.2 min 38.2 max 868 min 970 max 34.2 min 1160 min 38.2 max 1262 max 45.7 min 49.
Floor Loading Footprint Dimensions Model 315.01 Model 315.02 Model 315.03 Model 315.04 Length 737 mm 29 in 889 mm 35 in 991 mm 39 in 991 mm 39 in Depth 432 mm 17 in 521 mm 20.5 in.
Load Frame Stiffness Calculation The Load Frame Spring Rate (stiffness) value reported by MTS is a combination of the theoretical stiffness of the top plate (crosshead), columns and baseplate. The equations that are used to calculate these numbers are presented below.
Top Plate 3 DT ( HT ) I T = ----------------------12 L T = W T – 2W C AT = DT HT Columns AC = WC DC LC = H C Base Plate 3 IB DB ( HB ) = ----------------------12 L B = WT – 2W C A B = HB DB Spring rate 48EI T – 1 20A T G – 1 - + -----------------KT = ------------- 6L T LT 3 –1 (for each column) AC E KC = ----------LC 48EI B – 1 20A B G – 1 - + ------------------KB = -------------- 6L B LB 3 –1 K Sy stem = [ K T + ( 2K C ) Series 315 Load Frame –1 –1
Note to spring rate equations Although the baseplate is modeled as a solid rectangular beam, it actually has a large hole through it where the actuator is mounted. It is assumed, however, that since the actuator is attached to the baseplate with fully preloaded fasteners, the stiffness of the baseplate/actuator assembly is approximately comparable to a solid baseplate (i.e. with no hole through it).
Installation This section describes how to install the Series 315 Load Frame. Contents Lifting and Moving Instructions Connecting Cables 23 Connecting Hydraulics Prerequisite 18 24 You will need a fork lift or overhead crane capable of lifting the load frame. Ensure the lifting equipment can accommodate the weight of the load frame, see the following table. 315 Load Frame Weights Model Procedure Weight 315.01 2359 kg (5200 lb) 315.02 3855 kg (8500 lb) 315.03 6350 kg (14,000 lb) 315.
Lifting and Moving Instructions Required equipment WARNING The load frame is shipped horizontally on a wooden pallet. You will need the following equipment to unpack the load frame: • Lifting slings—not chains—to lift the load frame from its pallet • Lifting chains to tip the load frame upright • Rubber mats for the load frame’s feet to rest on • Wooden blocks for the load frame’s columns to rest on • A knife to cut the packing straps The load frame is extremely heavy.
3. Ensure that the device(s) use for lifting and moving the load frame can support the entire weight shown on the Lifting and Moving Caution placard on the back of the load frame. This weight includes the load frame, load cell (if applicable), actuator, servovalve(s), hydraulic service manifold, grips, and any other devices attached to the load frame as delivered. 4. Do not apply shock loads to the lifting device(s) when lifting or moving the load frame.
3. Attach lifting device(s). A. Attach lifting chain hooks (or equivalent devices) to the hoist rings on top of the load frame. When attaching both hoist rings to the same point, do not exceed a 30° chain angle as shown in the following figure. Exceeding a 30° chain angle causes undesired stress or strain on the eye bolts or hoist rings. 30° Maximum B. Remove the side covers from the actuator. C. Attach lift straps around the ends of the upper leg as shown in the following illustration. D.
4. Lift the load frame and prepare for vertical positioning. A. Lift the load frame, keeping it horizontal, until it is completely clear of the skid and supports. B. Remove the skid and supports. C. Place wood beams beneath the bottom (actuator) end of the load frame, with the length of the beams running parallel to the length of the load frame. 5. Raise the load frame to its vertical (upright) position. A. Lower the bottom end of the load frame until it contacts the wood beams. B.
7. Place the load frame onto the isolation pads. Install stock metal shims between the pads and the floor. Load Frame Install Shims to Level Floor Isolation Pads C. Lower the load frame gently into place. D. Replace the actuator side covers. 8. Remove the chains.
Connecting Cables Your controller manual should have cabling information about the connections described in this section. Most controller manuals provide the signal pinouts of the connector and assembly numbers for standard MTS cables. Note Prerequisite Typical cable connections Series 315 Load Frame Many of the cables are connected to optional equipment. The following paragraphs list the most common connections. The exact connector locations vary quite a bit among the various models of the load frame.
Connecting Hydraulics The procedure describes how to connect the load frame to the hydraulic power source. The load frame can be connected directly to the hydraulic power unit (also called HPU), to hydraulic plumbing in the workplace, or through a hydraulic service manifold (HSM). Note The internal hydraulic connections from the actuator manifold and accessories such as the hydraulic lifts and locks should already be made. The load frame actuator usually has a manifold mounted to it.
Operation This section describes how to use the Series 315 Load Frame. Contents Emergency Stop 25 Crush Point Hazards 26 Emergency Stop Emergency Stop The Emergency Stop button shuts down the hydraulic pressure and stops the test program. Press this button to shut down hydraulic power, and twist the switch clockwise to release it. Use the Emergency Stop button to shut down your test if something unexpected should happen.
Crush Point Hazards It is important to stay clear of any potential crush points when the system is operating. You should know where the crush points are in your system and protect yourself and others from those crush points with appropriate safety devices. The following paragraphs describe crush points and precautions to take while working around crush points.
Maintenance This section describes the procedures which must be periodically performed to ensure the continued safe and effective operation of your load frame. The maintenance interval table on page 28 shows a schedule to maintain your load frame.
Maintenance Intervals The following table lists the recommended interval for each of these procedures. What to Do When to Do It How to Do It* Making daily inspections Before the start of each day’s testing. See “Making Daily Inspections” on page 29. Minimizing rust Depends on the operating environment; more often in humid environments. See “Minimizing Rust” on page 30. Checking the accumulators’ precharge pressures At least once a month; more often as required by operating conditions.
Making Daily Inspections Before the start of each day’s testing, do a quick inspection of your load frame. Following are typical things that should be checked daily: Series 315 Load Frame • Ensure that there are no leaks from the actuator, hydraulic service manifold, servovalve, or accumulators. • Ensure that electrical connections are tight, with no frayed or poorly routed cables. • Ensure that hoses are routed properly and fittings are not leaking.
Minimizing Rust Where you operate the load frame determines how often you take rust prevention measures. Humid and corrosive environments require more prevention. Recommended supplies: • 1 grade kerosene • Silicone spray • 000 emery cloth • Touchup paint; MTS part numbers 011-059-854 (beige), 011-059-856 (grey), 044-587-501 (brown) • Metal primer paint • Lint-free cloths Methods for Various Surfaces The method and supplies needed to minimize rust, depends on the surface type.
Checking the Accumulators’ Precharge An accumulators’ correct precharge pressure is written on its label. Begin by checking precharge pressures at least once a month. See the Series 111 Accumulator Product Information manual for the complete details on checking the precharge intervals and servicing the accumulators. Record both the pressures and the room temperature in a log book. Use these readings as a basis for increasing or decreasing the interval between pressure checks.
Maintenance Series 315 Load Frame
m MTS Systems Corporation 14000 Technology Drive Eden Prairie, Minnesota 55344-2290 USA Toll Free Phone: 800-328-2255 (within the U.S. or Canada) Phone: 952-937-4000 (outside the U.S. or Canada) Fax: 952-937-4515 E-mail: info@mts.com http://www.mts.
