Axial Piston Variable Pump A10VO

Transcription

1 Electric Drives and Controls Hydraulics inear Motion and Assembly Technologies Pneumatics ervice Axial Piston Variable Pump A10VO RA 92703/ /44 Replaces: Data sheet eries 52/53 ize Nominal pressure 3600 psi (250 bar) Peak pressure 4600 psi (315 bar) Open circuit eries 52 eries 53 Contents Ordering code - standard program 2 Hydraulic fl uids 4 Technical data 5 Operating curves for pumps with pressure control 8 DR - Pressure control 9 DRG - Pressure control, remote 10 DRF (DFR) and DR (DFR1) - pressure and fl ow control 11 A... - pressure, fl ow and power control 12 Unit dimensions, size Unit dimensions, size Unit dimensions, size Unit dimensions, size Unit dimensions, size Unit dimensions, size Combination pumps A10VO + A10V()O 36 Overview of through drive mounting options 36 Dimensions through drives 37 Installation notes 40 General information 44 Features Variable axial piston pump in swash plate design for hy dro - sta ti c drives in open circuits Flow is proportional to drive speed and displacement. The fl ow is infi nitely variable by adjustment of the swash plate. trong bearings for long service life High permissible drive speeds High power to weight ratio mall dimensions ow noise level Good suction characteristics Axial and radial loading of drive shaft possible Pressure and fl ow control Electro-hydraulic pressure control Power control Electro-proportional displacement control hort response times

2 Ordering code - standard program A10V() O / 5 V Axial piston unit wash plate design, variable A10V Nom. pressure 3600 psi (250 bar), peak pressure 4600 psi (315 bar) A10V Operating mode 02 Pump, open circuit O ize ~displacement V g max in in (cm 3 ) (10) (18) (28) (45) (63) (85) Control devices 1) Pressure control DR DR with hydraulic fl ow control X-T open D F R DFR X-T open DR F DRF X-T closed DFR1 DFR1 X-T closed DR DR with fl ow control, electro-hydraulic adjustment of differential pressure (inverse proportional characteristic), (RA ) EF. D. EF.D. with remote pressure control hydraulic DR G DRG electric, inverse characteristic ED. ED. 04 Power control with pressure control minimum start of control 145 to 510 psi (10 to 35 bar) A 5 D A5D 520 to 1015 psi (36 to 70 bar) A 6 D A6D 1030 to 1520 psi (71 to 105 bar) A 7 D A7D 1535 to 2030 psi (106 to 140 bar) A 8 D A8D 2045 to 3335 psi (141 to 230 bar) A 9 D A9D with remote pressure control min. start of control see above A X D G AXDG with pressure and fl ow control, X-T closed min. start of control see above A X D AXD with press. and fl ow controlol electr. adjustment of diff. press. (inverse prop. characteristic), X-T closed (RA ) min. start of control see above A X. AX. Electro-proportional displacement control (RA ) with pressure and fl ow control, positive characteristic EP. D. EP.D. with pressure and fl ow control, positive characteristic; deactivation of control at I = 0 EK. D. EK.D. eries ) For availability of control options in series 52 and 53 see index 06 in ordering code

3 A10V() O / 5 V Index DR, DFR, DFR1, DRG, ED 2 1) DR, DRF, DR, DRG, ED... 3 EF..., A..., EP..., EK... 3 Direction of rotation 07 viewing on shaft end right hand R left hand eals 08 FKM (fl uor-rubber) V haft end plined shaft to AE J744, standard shaft imilar to shaft however for higher input torque R 09 plined shaft to AE J744, reduced diameter, not for through drive U imilar to shaft U higher input torque, not for through drive W Parallel shaft AE with key K 2) Tapered with Woodruff key C 2) 10 Mounting flange AE 2-hole C AE 4-hole D Port for service lines AE fl ange at rear, UNC fi xing thread(no through drive) AE fl ange on side-opposite sides, UNC fi xing thread 62 (for through drive) Threaded ports at rear, UNC threads (no through drive) 64 2) Through drive Without through drive (standard for version 61 and 64) N00 Flange AE J744 Coupler for splined shaft 3) ealing 82-2 (A) 5/8 in 9T 16/32DP axial K (A) 3/4 in 11T 16/32DP axial K (B) 7/8 in 13T 16/32DP axial K (B) 1 in 15T 16/32DP axial K (C) 1 1/4 in 14T 12/24DP axial K (C) 1 1/4 in 14T 12/24DP axial K (C) 1 1/2 in 17T 12/24DP axial K24 1) Not for new projects. For new projects use only series 53. 2) only eries 52 3) 30 pressure angle, fl at base, fl ank centering, fi t class 5 available in preparation not available

4 Hydraulic fl uids Prior to project design, please see our technical data sheets RE (mineral oil), RE (environmentally acceptable fl uids) and RE (HF-fl uids) for detailed information on fl uids and operating conditions. When using HF- or environmentally acceptable fl uids attention must be paid to possible limitations of the technical data, if necessary contact us. (when ordering please state in clear text the fl uid to be used). Operation on kydrol is only possible after consultation with us. Operating viscosity range For optimum effi ciency and service life we recommend that the operating viscosity be chosen in the range of: ν opt = opt. operating viscosity U ( mm 2 /s) referred to tank temperature (open circuit). imit of viscosity range For critical operating conditions the following values apply: ν min = 60 U (10 mm 2 /s) for short periods (t 1 min) at max. permissible leakage fl uid temperature of 239 F (115 C). Please note, that the max fl uid temperature of 239 F (115 C) is also not exceeded in certain areas (for instance bearing area) The fl uid temperature in the bearing area is approx. 7 F (5 K) higher than the average leakage fl uid temperature. ν max = 7500 U (1600 mm 2 /s) for short periods (t 1 min) on cold start (t min = p 435 psi (30 bar), n 1000 rpm, -13 F (-25 C)) At temperatures between -13 F (-25 C) and -40 F (-40 C) special measures may be required, depending on installation conditions. Please consult us for further information. For detailed information on operation with low temperatures see data sheet RE B. election diagram Viscosity ν [mm 2 /s] F C VG 68 VG 46 VG 32 VG 22 VG Notes on the selection of the hydraulic fluid In order to select the correct fl uid, it is necessary to know the operating temperature in the tank (open circuit) in relation to the ambient temperature. The fl uid should be selected so that within the operating temperature range, the viscosity lies within the optimum range (ν opt ), see shaded section of the selection diagram. We recommend to select the higher viscosity grade in each case. Example: at an ambient temperatue of X F (X C) the operating temperature in the tank is 140 F (60 C). In the optimum viscosity range (ν opt ; shaded area) this corresponds to viscosity grades VG 46 resp. VG 68; VG 68 should be selected Important: The leakage fl uid (case drain fl uid) temperature is infl uenced by pressure and input speed, and is always higher than the tank temperature. However, at no point in the circuit may the temperature exceed 239 F (115 C). If it is not possible to comply with these conditions because of extreme operating parameters or high ambient temperatures, please consult us. Filtration of fluid The fi ner the fi ltration the better the achieved cleanliness of the hydraulic fl uid and the longer the life of the axial piston unit. To ensure a reliable functioning of the axial piston unit, a minimum cleanliness of 20/18/15 to IO 4406 is necessary. At very high operating temperatures (195 F (90 C) to max. 239 F (115 C)) a cleanliness of 19/17/14 to IO 4406 is necessary. If above mentioned grades cannot be maintained please consult us ν opt U mm 2 /s mm 2 /s C U F Temperature range t in C t min = -40 F (-40 C) Fluid temperature range t max = 240 F (115 C)

5 RA /11.07 A10VO Mobile Hydraulics Bosch Rexroth Corp. 5/44 Technical data Operating pressure range Inlet Absolute pressure at port p abs min 12 psi (0,8 bar) p abs max 73 psi (5 bar) To determine the min. required inlet pressure p abs at inlet port or the reduction of displacement at higher input speeds see the diagram to the right. Outlet Pressure at port B Nominal pressure p N 3600 psi (250 bar) Peak pressure p max 4600 psi (315 bar) (Pressures to DIN 24312) Direction of flow to B. Maximum permissible speed (peed limit) Permissible speed by increase of inlet pressure p abs at the inlet port or reduction of displacement (V g V g max ). peed n/n 0 max [rpm] Displacement V g /V g max [in 3 (cm 3 )] (1.2) 14.5 (1.0) 13 (1.6) (1.4) (0.9) 11.5 (0.8) Inlet pressure p abs [psi (bar)] Case drain pressure Maximum permissible case drain pressure (port, 1/2 ): maximum 7 psi (0,5 bar) higher than the inlet pressure at port, however not higher than 29 psi (2 bar) absolute. p abs max 29 psi (2 bar)

6 Technical data Table of values (theoretical values, without considering effi ciencies and tolerances; values rounded) ize A10V()O Displacement V g max in 3 (cm 3 ) 0.64 (10,5) 1.10 (18) 1.71 (28) 2.75 (45) 3.84 (63) 5.18 (85) peed 1) max. at V g max n 0 max rpm ) max. at V g < V g max n 0 max zul rpm Flow at n 0 max q V0 max gpm (/min) 9.7 (37) 15.6 (59) 22 (84) 31 (117) 43 (163) 55 (212) at n E =1500 min -1 q VE max gpm (/min) 4 (15) 7.1 (27) 11.1 (42) 18 (68) 25.1 (95) 34 (128) Power Δp = 3600 psi (250 bar) at n 0 max P o max HP (kw) 22 (16) 34 (25) 47 (35) 65 (49) 90 (68) 119 (89) at n E =1500 min -1 P E max HP (kw) 9.4 (7) 15 (11) 24 (18) 38 (28) 52 (39) 71 (53) Torque at V g max Δp = 3600 psi (250 bar) T max lb-ft (Nm) 31 (42) 52 (71) 82 (111) 132 (179) 184 (250) 247 (338) Δp = 1440 psi (100 bar) T lb-ft (Nm) 13 (17) 21 (29) 33 (45) 53 (72) 74 (100) 102 (135) Torsional stiffness haft c lb-ft/rad 6760 (9200) 8082 (11000) (22300) (37500) (65500) (143000) haft R c lb-ft/rad (14800) (26300) (41000) (69400) haft U c lb-ft/rad 5020 (6800) 5870 (8000) (30000) (49200) (102900) haft W c lb-ft/rad (34400) (54000) (117900) haft K/C c lb-ft/rad 7965 (10800) (26800) (43900) (73900) Moment of inertia rotary group J TW lbs-ft 2 (kgm 2 ) (0,0006) (0,00093) (0,0017) (0,0033) (0,0056) (0,012) Angular acceleration, max. 3) α rad/s Fill volume V gal () 0.05 (0,2) 0.06 (0,25) 0.08 (0,3) 0.13 (0,5) 0.21 (0,8) 0.26 (1) Weight approx. (without fl uid) m lbs (kg) 17 (8) 25 (11,5) 31 (14) 40 (18) 48.5 (22) 75 (34) 1) Values are valid with inlet pressure of 15 psi (1 bar) at suction inlet. With reduced displacement or increased inlet pressure the drive speed can be increased according to the diagram on page 5. 2) For higher drive speeds please consult us. 3) These values are valid for conditions between the min. required and the max. permissible drive speeds. For external sources of excitation (eg. diesel engine 2-8 fold rotary frequency, cardan shaft 2 fold rotary frequency). The limit is valid for a single pump. The load carrying capacity of the connecting parts must be taken into consideration. Caution: Exceeding these limits can lead to a loss of operability, reduction of service life or complete destruction of the axial piston unit. The permissible values can be calculated.

7 RA /11.07 A10VO Mobile Hydraulics Bosch Rexroth Corp. 7/44 Technical Data Determination of pump size Flow q V = Torque T = Power P = V g n η V V [gpm (/min)] g = geometr. displacement per revolution in in 3 (cm 3 ) 231 (1000) p = pressure differential in psi (bar) V g Δp n = drive speed in rpm [lb-ft (Nm)] 24 (20) π η mh η V = volumetric effi ciency 2π T n q = V p η [HP (kw)] mh = mechanical-hydraulic effi ciency 33,000 (60000) 1,714 (600) η t η t = overall effi ciency (η t = η V η mh ) Permissible radial and axial forces on drive shaft ize Radial force, max. Fq at F q max lbf X/2 X/2 X/2 (N) (250) (350) (1200) (1500) (1700) (2000) X Axial force, max. F ax N 90 ± Fax (400) 157 (700) 225 (1000) 337 (1500) 450 (2000) 675 (3000) Permissible input and through drive torques ize Torque, max. (at V g max and Δp = 3600 psi T max lb-ft (Nm) 31 (42) 52 (71) 82 (111) 132 (179) 184 (250) 249 (338) (250 bar 1) )) Input torque, max. 2) for shaft end T E zul lb-ft (Nm) 93 (126) 91 (124) 146 (198) 235 (319) 465 (630) 851 (1157) AE J744 3) in 3/4 3/4 7/ /4 1 1/2 for shaft end R T E zul lb-ft (Nm) 110 (150) 166 (225) 295 (400) 479 (650) AE J744 3) in 3/4 7/ /4 for shaft end U T E zul lb-ft (Nm) 44 (60) 43 (59) 139 (188) 226 (306) 463 (628) AE J744 3) in 5/8 5/8 7/ /4 for shaft end W T E zul lb-ft (Nm) 162 (220) 292 (396) 447 (650) AE J744 3) in 7/ /4 for shaft end K T E zul lb-ft (Nm) 78 (106) 107 (145) 156 (212) 325 (441) in (mm) (19.05) (22.225) (25.4) (31.75) for shaft end C 4) T E zul lb-ft (Nm) 107 (145) 156 (212) 325 (441) Through drive torque, max. for shaft end T D zul lb-ft (Nm) 80 (108) 118 (160) 235 (319) 357 (484) 515 (698) for shaft end R T D zul lb-ft (Nm) 89 (120) 130 (176) 270 (365) 357 (484) 1) without considering effi ciency 2) for shaft without side load 3) (ANI B92.1a-1996) 4) only for series 52 Distribution of torques T E T 1 T 2 1. Pumpe 1. Pump 2. Pumpe T D

8 Installation notes Optional installation position. The pump housing must be fi lled with fl uid during commissioning and operation. In order to obtain a low noise level, all connections (inlet, outlet, pilot pressure and case drain lines) must be linked by fl exible members to tank. Avoid placing a check valve in the case drain line. The highest of the case drain ports (; 1 or 2 ) must be connected to tank with piping material for standard pressure rating suitable for the port sizes. Vertical installation (haft end upwards) Arrangement inside the reservoir Before installation fi ll pump housing, keeping it in a horizontal position. a) If the min. fl uid level is equal to or above the pump mounting face: plug port "", " 1 " and "" open; it is recommended to pipe " 1 " and connect a suction pipe to "" (see fi g. 1). b) If the min. fl uid level is below the pump mounting face: pipe ports " 1 " and " acc. to fi g. 2 "" plugged. (see also limit of conditions) Note: to avoid pump damage, remove all protective parts (dust covers, plastic plugs etc.) before installation. 1 min in (200 mm) Arrangement outside the reservoir Above the reservoir as in fi g. 2. Before installation fi ll pump housing, keeping it in a horizontal position. imit of conditions Min. pump inlet pressure p abs min = 12 psi (0,8 bar) under static and dynamic conditions. Note: try to avoid mounting above tank in order to obtain a low noise level. The permissible suction height is a result of the overall pressure loss but may not exceed h max = 32 in (800 mm) (immersion depth h t min = 7.87 in (200 mm)). Overall pressure loss Δp tot = Δp 1 + Δp 2 + Δp 3 (1 p abs min ) = 3 psi (0,2 bar) Δp 1 : press. loss in pipe due to acceleration of fl uid column 1 h t min h max Baffl e Fig. 1 Fig. 2 ρ = density [kg/m 3 ] ρ l dv Δp 1 = 10-5 [bar] l = pipe lenght [m] dt dv/dt = change of fl uid velocity inlet [m/s 2 ] Δp 2 : Pressure loss due to static head h = height [m] Δp 2 = h ρ g 10-5 [bar] ρ = density [kg/m 3 ] Δp 3 = ine losses (elbows etc.) Horizontal installation The pump must be installed in such a manner, that either "", " 1 "or " 2 " is at the top. Arrangement inside the reservoir a) If the min. fl uid level is above the top of the pump: plug port " 1 ", "" and "" open; it is recommended to pipe " and connect a suction pipe to " (see fi g. 3). b) If the min. fl uid level is below the top of the pump: pipe "" and "" acc. to fi g. 4, " 1 " plugged (see also limit of conditions). Note: to avoid pump damage, remove all protective parts (dust covers, plastic plugs, etc) before installation. 1 min in (200 mm) Fig. 3 Arrangement outside the reservoir Fill pump housing before commissioning. Pipe port "" and the highest of the case drain ports "", " 1 " or " 2. a) Mounting above the tank: see fi g. 4. (see also "imit of conditions ) Baffl e 1 Baffl e 1 g = gravity acceleration = 9,81 m/s 2 h t min h t min h t min h max Fig. 4 b) Mounting below the reservoir: pipe ports " 1 " and "" acc. to fi g. 5, plug port "". Fig. 5