شركة ونزهو برانس للمعدات الهيدروليكية المحدودة
Axial Variable Displacement Pump A20VO
1.Variable pump with two axial piston rotary groups in swashplate design for use in open circuit hydrostatic drives
2.For use in mobile and stationary applications
3.The pump consists of proven components from the A11VO , A10VO/53 or A4VSO variable pumps
4.The pump operates under self-priming condition, with tank pressurisation or with charge pump (sizes 190…260)
5.A wide variety of controls are available
وصف تفصيلي
This variable pump features a swash plate construction equipped with two independent axial piston rotary groups, which is professionally designed and optimized for open circuit hydrostatic transmission drive systems. It is perfectly applicable to a full range of mobile engineering machinery as well as fixed industrial stationary equipment, covering diversified industrial and engineering application scenarios. The pump is assembled with fully proven, mature standard components inherited from the classic A11VO, A10VO/53 and A4VSO series variable pumps, guaranteeing reliable operation, stable quality and good interchangeability. It can run steadily in self-priming working condition, and also supports operation with tank pressurisation; for specifications ranging from 190 to 260 displacement sizes, it can be matched with an additional charge pump to enhance working stability. In addition, the product provides a complete selection of various control modes, which can flexibly adapt to different working conditions and system regulation requirements.
التقييم وطلب عرض الأسعار
يجب اختيار سلسلة المنتجات هذه بما يتوافق مع الدائرة الهيدروليكية المعتمدة. تأكد من تحديد التدفق أو الإزاحة المطلوبة، والضغط المستمر وأقصى ضغط، وسرعة الدوران، ونظام التحكم، ونوع السائل، وواجهة التركيب قبل إجراء الاختيار النهائي.
المعلومات التي يجب تضمينها في طلب عرض الأسعار الخاص بك
- الازاحة أو التدفق المطلوب عند سرعة التشغيل
- ضغط النظام المستمر والقصوي
- سرعة المحرك، متطلبات التحكم ونوع الدائرة
- شفة التركيب، العمود، المنافذ، السوائل ومتطلبات الترشيح
الموارد ذات الصلة
اطلب عرض سعر · مركز التنزيل · تصنيع أصلي / تصنيع تصميمي أصلي
رمز الطلب / البرنامج القياسي
| A20V | ○ | / | 10 | - | |||||||||
| 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 110 | 12 |
وحدة كباس محوري
01 |
Swashplate design, variable(Back to back - design) |
A20V |
مضخة الشحن (المروحة)
| 60 | 95 | 190 | 260 | 520 | |||
| 02 | بدون مضخة شحن | ● | ● | - | - | ● | |
| مع مضخة شحن | - | - | ● | ● | - | L | |
عملية
| 03 | Double Pump, open circuit | ○ |
حجم
| 04 | ≈Displacement Vg الحد الأقصىبالسنتيمتر3(per rotary group) | 60 | 95 | 190 | 260 | 520 |
أجهزة التحكم
| 60 | 95 | 190 | 260 | 520 | ||
| 05 | see RE 92703 (A10VO/53) | ● | - | - | - | - |
| see RE 92500 (A11VO) | - | ● | ● | ● | - | |
| see RE 92050 (A4VSO) and RE 92060,RE 92064, RE 92076 | - | - | - | - | ● | |
مسلسل
| 06 | Series 1, Index 0 | 10 |
اتجاه الدوران
| 07 | viewed on shaft end | مع عقارب الساعة | R |
| عكس عقارب الساعة | L |
Seals
| 08 | NBR (nitril-caoutchouc), shaft seal ring in FKM (fluor-caoutchouc) | ● | ● | ● | ● | - | N |
| FKM (fluor-caoutchouc) | - | - | - | - | ● | V |
Shaft end
| 60 | 95 | 190 | 260 | 520 | |||
| 10 | Splined shaft DIN 5480 | - | ● | ● | ● | ● | Z |
| Splined shaft, ANSI B92.1a-1976 | ● | ● | - | - | - | S | |
| - | - | ● | ● | - | T | ||
| Parallel keyed shaft, DIN 6885 | - | - | - | - | ● | P | |
شفة التركيب
| 60 | 95 | 190 | 260 | 520 | |||
| 09 | SAEJ744-4-hole | ● | ● | ● | ● | - | D |
| To fit flywheel housing (conformin to SAE J617)
of internal combustion engine (details on request) |
- | ● | ● | - | - | G | |
| SO3019-2-8-hole | - | - | - | ● | H | ||
Service line ports
| 60 | 95 | 190 | 260 | 520 | |||
| 11 | Two service line ports and one scution port at site,
opposite (fastening thread metric) |
● | ● | ● | ● | - | 24 |
| At the site two service line ports each, opposite and one suction port displaced by 90° (fastening thread metric) | - | - | - | - | ● | 26 | |
Boost pump and through drive1)
| 60 | 95 | 190 | 260 | 520 | |||||
| 12 | without boost pump, without through drive | ● | ● | ● | ● | - | N00 | ||
| without boost pump, with through drive | |||||||||
| Flange SAE J744 | Splined shaft hub | ||||||||
| ٢-٨٢ (أ) | 5/8in | 9T 16/32DP (A) | ○ | ○ | ○ | ○ | - | K01 | |
| 127-2(C) | ١ وربع بوصة | 14T 12/24DP (C) | - | - | - | - | ● | K07 | |
| with through drive shaft, without hub, without intermediate flange, closed by a cover | - | - | - | - | ● | K99 | |||
•=available ○= available on request -=not available
1)Please contact us
البيانات الفنية
Table of values (theoretical values, without efficiencies ηمم and ηv; values rounded)
| حجم | without charge pump | 60 | 95 | 520 | |||
| مع مضخة شحن | 190 | 260 | |||||
| إزاحة
(per rotary group) |
Vgmax | سم3 | 60 | 93,8 | 192,7 | 260 | 520 |
| Vج مين | سم3 | 0 | 0 | 0 | 0 | 0 | |
| Speed
maximal 1) at Vgmax |
|||||||
| nالحد الأقصى | min-1 | 2700 | 2350 | 25002） | 25002） | 1450 | |
| Speed max. 3)
at Vg ≤Vgmax |
|||||||
| nالحد الأقصى | min-1 | 3200 | 2780 | 2500 | 2300 | 1720 | |
| تدفق
at nماx and Vg max |
|||||||
| qvmax | لتر/دقيقة | 2x162 | 2x220 | 2x482 | 2x598 | 2x754 | |
| Power at qv ماx
and Δp = 350 bar |
|||||||
| Pالحد الأقصى | كيلوواط | 1354) | 257 | 562 | 689 | 880 | |
| Torque at Vجي ماكس
at long-term (Δp = 350 bar) max. perm., short term (Δp = 400 bar) |
|||||||
| Tالحد الأقصى | لا شيء جديد | 4774) | 1045 | 2147 | 2897 | 5793 | |
| Tالحد الأقصى | لا شيء جديد | 6024) | 1194 | 2454 | 3310 | 6621 | |
| Moment of inertia(of the rotating parts) | J | kgm2 | 0,0113 | 0,0346 | 0,0604 | 0,0912 | 0,696 |
| Mass approx. | m | kg | 44 | 640 | |||
1)The values are quoted for an absolute pressure (pabs) of 1 bar at suction port S and mineral operating fluid
2)The values are quoted for an absolute pressure (Pabs) of at least 0.8 bar at suction port S and mineral operating fluid.
3)The values are quoted for Vg <Vgmax or increase of the input pressure Pabs at suction port S.
4) Δp = 250 bar (long-term operation) or rather 315 bar (short term).
