CYLINDER THRUST CALCULATION

Transcription

1 160 double rod escapement SPCIFICATIOS OPRATI PRSSUR OPRATI TMPRATUR OCITY UBRICATIO MAITAC SRIS psi min to 150 psi [ bar min to 10 bar max] air -0 to +180 F [-8 to +8 C] 0 in/sec [0.5 m/sec] typical min, zero load at 100 psi [7 bar] 5 million cycles Field repairable UIT 1600/ / / / / / / /160 SCRIPTIO ST UTY, ST MT AY UTY, SOTT MT ST UTY, ST MT AY UTY, ST MT AY UTY, SOTT MT ST UTY, ST MT AY UTY, ST MT ST UTY, ST MT in BOR mm STROK (in) MI MAX RO IRCTIO XT RTRACT XT RTRACT XT RTRACT XT RTRACT FFCTI ARA in mm lb IT mm SCAPMTS CYIR TRUST CACUATIO Imperial Metric F = P x A F = 0.1 x P x A F = Cylinder Force lb P = Operating Pressure psi bar A = ffective Area in mm (800) SIZ08

2 160 escapement TR AR FOUR MAJOR FACTORS TO COSIR SCTI A SCAPMT. 1 RSPOS TIM (T) - The time it takes to extend one rod and retract the other rod. STATIC SI OA (Q) - The constant load on one rod from the weight or force exerted by parts being held back. MAXIMUM RO TORQU - Torque applied to the rod by off-center parts and tooling. IMPACT OA (F) - The load caused when the weight from the stack transfers from one rod to the other or when additional parts impact against the stack. SCAPMTS 1 RSPOS TIM T = U P + S X TOTA CYC TIM = T + TIMS QUATIO COSTAT U 1600x 0.15 [0.15] RSPOS 6500 S TIM [8] X 1500 [580] STAAR UTY 1601x 0.00 [0.00] 150 [86] 750 [0] 160x 0.50 [0.50] 1000 [69] 500 [7] 160x 0.50 [0.50] 1000 [69] 900 [08] P - orking pressure in psi [bar] T - Time in seconds to extend one rod and retract the other - Total weight applied to rod pounds [kg] AY UTY 1601x 0.00 [0.00] 150 [86] 750 [0] 160x 0.50 [0.50] 1000 [69] 500 [7] mo O. 1600x 1601x 160x 160x MAXIMUM RO TORQU STAAR UTY in-lb [m] 1. [0.1].0 [0.5] 5.0 [0.6] 9.0 [1.1] AY UTY in-lb [m].0 [0.5] 5.0 [0.6] For applications which exceed the maximum allowable rod torque, the tooling should be supported as shown. Calculation without the support: Max. Rod oad Torque = (oad) x R max. RO OA TORQU = (OA) x R R SUPPORT* C *Support if torque exceeds maximum SUPPORT* OA SUPPORT For applications that exceed maximum allowable forces, support the tooling as shown. SUPPORT SUPPORT 16 SIZ08 (800)

3 160 escapement SYMBO FIITIOS - istance from face of escapement to centerline of parts in inches [mm] - umber of parts backed up For correct sizing calculation results, always divide by the number of escapements that may be used. This must be done PRIOR to using in a sizing calculation. f - Friction coefficient between the conveyor belt and the part (use 0.5 [0.5] if unknown) P - orking pressure in psi [bar] R - Offset distance between the load and the rod centerline Q - Maximum side load factor value the rod can support and still cycle (assumes zero friction between tooling and part) - Conveyor belt velocity in inches/sec [mm/sec] - eight of each part in lb [] OT: = 9.8 (mass in kg) QUATIO STATIC OA IMPACT OA COSTAT Q at 0 psi Q at 60 psi Q at 80 psi Q at 100 psi A B C F COSTATS FOR US I PRFORMAC CACUATIOS 10 mm mm ImPRIA STAAR UTY 0 mm mm OT: A, B, C,,, F, & are empirical numbers determined through testing. AY UTY 1 mm mm COSTAT Q at bar Q at bar Q at 6 bar Q at 7 bar A B C F 10 mm mm mtric STAAR UTY 0 mm mm AY UTY 1 mm mm SCAPMTS ORIZOTA TRASFR STATIC OA COYOR BT IMPACT OA - From the stack of parts transferring from one rod to the other. ( ) ( - C ) IMPACT OA - From additional part or parts being added onto the stack. COYOR BT ( - C ) f + ote: If the above equations do not yield an acceptable answer, either choose a larger escapement, shorten the dimension, decrease the number of parts in the stack, or decrease the velocity. (800) SIZ08

4 160 escapement RTICA TRASFR See example below. STATIC OA IMPACT OA - From the stack of parts transferring from the top rod to the bottom rod. ( ) ( - C ) IMPACT OA - From additional part or parts being added onto the stack. ( - C ) + ote: If the above equations do not yield an acceptable answer, either choose a larger escapement, shorten the dimension, decrease the number of parts in the stack, or decrease the distance. SCAPMTS RAITY RAITY XAMP - ertical Transfer Model = A =.9 [10] B =.17 [.17] C =.81 [0.6] =.017 [56] = 5600 [1.58 8] F = [.7] =.5 in [1 mm] = in [50 mm] = 15 Q = 0.9 at 80 psi [0 at 6 bar] R = 0 =.0 lb [.1] STATIC OA IMPACT OA IMPRIA IMPRIA ( ) ( - C ) ( 15 x.0 ) ( -.81) 5600 x x 15 x.0 MTRIC Therefore the Static oad is acceptable. MTRIC ( ) ( - C ) ( 15 x.1 ) ( 50-0 ) x x 15 x.1 Therefore the Impact oad is acceptable. 18 SIZ08 (800)

5 C single rod escapement SPCIFICATIOS OPRATI PRSSUR OPRATI TMPRATUR STAAR TORAC RAT IF OCITY UBRICATIO MAITAC *-1 option may reduce life. SRIS C 0 to 150 psi [1. to 10 bar] air -0 to 180 F [-8 to 8 C] +.01/-.000 in [+.08/-.00 mm] 5 million cycles* 0 in/sec [0.5 m/sec] typical min, zero load at 100 psi [7 bar] Factory lubricated for rated life Field repairable FFCTI IT TAB BOR RO ARA STAAR STROK AJUSTmT UIT in mm IRCTIO in mm lb kg lb kg CSx XT RTRACT CSx1.7 1 XT RTRACT CSx XT RTRACT CSx 1.60 XT RTRACT SCAPMTS STROK TAB CSx10 CSx1 CSx0 CSx OPTIO in mm in mm in mm in mm STAAR UIT SOCK PA (-BB) STROK AJ (-AR) AR -BB CYIR TRUST CACUATIO Imperial F = P x A Metric F = 0.1 x P x A F = Cylinder Force lb P = Operating Pressure psi bar A = ffective Area in mm (800) SIZ08

6 C escapement FOUR MAI FACTORS TO COSIR SCTI A SCAPMT 1 RSPOS TIM - The time it takes to extend or retract the piston rod. STATIC SI OA (Q) - Constant load on the rod applied by the parts being held back. MAXIMUM RO TORQU - Torque applied to the rod by off-center parts and tooling. IMPACT OA (F) - The load applied to the rod when a part or stack of parts impacts dynamically on the rod tooling or additional parts are added dynamically to an existing stack. SCAPMTS 1 RSPOS TIM Following is a reference guide to response times of the piston rod for extend and retract based on a typical load at 87 psi [6 bar]. The response time for rod extension will be less than the response time for retraction. arying the operating pressure, air line diameter, and the applied load will affect the response time. Response times shown do not include valve response time. UIT CSx10 CSx1 CSx0 CSx TYPICA OA lb kg RTRACT TIm sec XT TIm sec MAXIMUM RO TORQU mo O. CSx10 CSx1 CSx0 CSx STAAR UTY in-lb m For applications which exceed the maximum allowable rod torque, the tooling should be supported as shown. Calculation without the support: Max. Rod oad Torque = (oad) x R max. RO OA TORQU = (OA) x R R SUPPORT* C *Support if torque exceeds maximum 10 SIZ08 (800)

7 C escapement SYMBO FIITIOS - istance from face of escapement to centerline of parts in inches [mm] - umber of parts backed up For correct sizing calculation results, always divide by the number of escapements that may be used. This must be done PRIOR to using in a sizing calculation. f - Friction coefficient between the conveyor belt and the part (use 0.5 [0.5] if unknown) QUATIO STATIC OA IMPACT OA COSTAT Q at 0 psi Q at 60 psi Q at 80 psi Q at 100 psi A B C F CSx ImPRIA CSx CSx CSx OT: A, B, C,,, F, & AR MPIRICA UMBRS TRMI TROU TSTI. P - orking pressure in psi [bar] R - Offset distance between the rod centerline and the load which applies a moment to the rod. Q - Maximum side load factor value the rod can support and still cycle (assumes zero friction between tooling and part) - Conveyor belt velocity in inches/sec [mm/sec] - eight of each part in lb [] OT: = 9.8 (mass in kg) COSTATS FOR US I PRFORMAC CACUATIOS COSTAT Q at bar Q at bar Q at 6 bar Q at 7 bar A B C F CSx mtric CSx CSx CSx SCAPMTS ORIZOTA TRASFR STATIC OA COYOR BT IMPACT OA - From the stack of parts transferring from one unit to the other. ( ) ( - C ) IMPACT OA - From additional part or parts being added onto the stack. COYOR BT ( - C ) f + ote: If the above equations do not yield an acceptable answer, either choose a larger escapement, shorten the dimension, decrease the number of parts in the stack, or decrease the velocity. (800) SIZ08

8 C escapement RTICA TRASFR xample below shows two units being used to sequence parts. STATIC OA IMPACT OA - From the stack of parts transferring from the top unit to the bottom unit. ( ) ( - C ) IMPACT OA - From additional part or parts being added onto the stack. ( - C ) + ote: If the above equations do not yield an acceptable answer, either choose a larger escapement, shorten the dimension, decrease the number of parts in the stack, or decrease the distance. SCAPMTS RAITY RAITY XAMP - ertical Transfer Model = CSx1 A =.9 [10] B =.17 [.17] C =.81 [0.6] =.017 [56] = 8000 [.1 8] F = [.7] =.5 in [1 mm] = in [50 mm] = 15 Q = 0.9 at 80 psi [0 at 6 bar] R = 0 =.0 lb [.1 ] STATIC OA IMPACT OA IMPRIA IMPRIA ( ) ( - C ) ( 15 x.0 ) ( -.81) 8000 x x 15 x.0 MTRIC Therefore the Static oad is acceptable. MTRIC ( ) ( - C ) ( 15 x.1 ) ( 50-0 ).1 8 x x 15 x.1 Therefore the Impact oad is acceptable. 1 SIZ08 (800)