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压力和流量控制系统SYHDFEE-1X

发布日期：2019-03-21　阅读：次

带轴向柱塞变量泵A4VSO的型号
尺寸40 ... 355
最大工作压力350 bar
功能：旋转角度控制，压力控制，扭矩限制，主从
通讯：模拟，可配置

特征

SYHDFEE-1X控制系统用于轴向柱塞变量泵的旋转角度，压力和功率（部分可选，参见订购代码）的电液控制。
控制系统包括以下组件：
A4VSO轴向柱塞变量泵优化用于控制系统中的操作
VT-DFPE-2X或VT-DFPD-1X比例阀作为先导阀，包括用于阀门位置感应的感应位置传感器。
位置传感器用于检测旋转角度
具有合适信号电平和动态的压力传感器（可选HM 20，单独订购）

Technical data

For applications outside these parameters, please consult us!

mechanic and hydraulic

Size				40	71	125	180	250	355
Displacement		V_g max	cm³	40	71	125	180	250	355
Speed ¹⁾	maximum at V_{g max}	n_o	rpm	2600	2200	1800		1900	1700
Speed ¹⁾	maximum at V_{g max}and HFC fluids	n_o	rpm		2200	1800		1500
Minimum speed ²⁾		n_min	rpm	200
Min. Speed at HFC-fluids	with ν = 25 mm²/s	n_min	rpm		750	850	600	550	450
Max. flow (displacement)	at n₀ and V_{g max}	q_v0 max	l/min	104	156	225	324	450	533
Max. flow (displacement)	with n_E = 1500 min^-1and V_{g max}	q_vE max	l/min	60	107	186	270	375	533
Max. power (Δp = 350 bar)	at n₀ and V_{g max}	P_0 max	kW	61	91	131	189	263	311
Max. power (Δp = 350 bar)	with n_E = 1500 min^-1and V_{g max}	P_E max	kW	35	62	109	158	219	311
Max. torque (Δp = 350 bar)		T_max	Nm	223	395	696	1002	1391	1976
Maximum permissible drive torque	Fitting key	T_total	Nm	380	700	1392	1400	2300	3557
	Splined shaft S overall torque	T_total	Nm	446	790	1392	2004	2782	3952
	Max. admissible through-drive torque	T_D	Nm	223	395	696	1002	1391	1976
Drive shaft load	max. admissible axial force	F_ax max	N	600	800	1000	1400	1800	2000
Drive shaft load	max. admissible radial force ³⁾	F_q	N	1000	1200	1600	2000		2200
Weight without filling quantity		m	kg	39	53	88	102	184	207
Moment of inertia around drive axis			kg·m²	0.0049	0.0121	0.03	0.055	0.0959	0.19
Filling quantity of the housing			l	2	2.5	5	4	10	8
Maximum admissible operating pressure ⁴⁾		p_max	bar	350
Operating pressure, min. (without load)		p_min	bar	≥ 20
Admissible inlet pressure		p	bar	0.8 ... 30
Hydraulic fluid				Mineral oil (HL, HLP) according to DIN 51524; HFC optional
Hydraulic fluid temperature range		ϑ	°C	-20 … +70
Maximum admissible degree of contamination of the hydraulic fluid according to ISO 4406				Class 18/16/13 (for particle size ≤ 4/6/14 μm)

¹⁾	The values are applicable at an absolute pressure of 1 bar at the suction opening S. With a reduction of the displacement or an increase in the inlet pressure, the speed can be increased according to the following characteristic curve. With a reduced inlet pressure, the speed is to be reduced.
²⁾	Does not apply to HFC fluid, formula for determination of the minimum speed see below
³⁾	In case of higher radial forces, please consult us. Not applicable for use of HFC fluids.
⁴⁾	When using HFC fluids, also see data sheet 92053.

Admissible load ‒ determination of nominal load and minimum speed

¹⁾	At SYHDFEN, the minimum speed can be determined by means of the derating function.

Example 1:

A4VSO125 may be operated at ν = 16 mm²/s

as of n = 1328 rpm with nominal load

Example 2:

the admissible load for A4VSO250

is n = 500 rpm and 10 mm²/s

x = 10/25*500/550 = 0.364 (= 127 bar at V_gmax)

electrical

Size				40	71	125	180	250	355
Operating voltage		U_B		24 VDC +40 % –5 %
Operating range (short-time operation)	Upper limit value	U_B(t)_max	V	35
	Lower limit value	U_B(t)_min	V	21
Current consumption (in static control operation)	Rated current	I_nom	A	0.6
	Maximum current	I_max	A	1.25
Inputs	Actual pressure value input X1; pin 10 and 11	U or I		Determination by means of ordering code
	Analog current inputs, load	R_B		100 Ω
	Analog voltage inputs	R_E		≥ 50 kΩ
	Digital inputs	Logic 0		≤ 0,6 V
		Logic 1		≥ 21 V
Outputs	p_actual / U_OUT1	U_O ¹⁾		0 ... 10 V
		I_max ¹⁾		1,5 mA
	α_actual / U_OUT2	U_O ¹⁾		± 10 V
		I_max ¹⁾		1,5 mA
	Digital outputs	Logic 0		U_a < 1 V
		Logic 1		U_a ≥ U_B – 5 V; 10 mA (short-circuit-proof)
Ambient temperature range at the pump		ϑ	°C	0 … 60
Storage temperature range (pump + electronics)		ϑ	°C	0 … 70
Electronics design				Integrated in the pilot valve (OBE)
Type of protection according to EN 60529	Pump incl. pilot valve			IP65 with mounted and locked plug-in connectors
Power limitation				optional

¹⁾	With SYDFEC, the outputs are parameterizable, for the condition as supplied, see electrical connection

Notice:

For information on the environment simulation testing for the areas of EMC (electro-magnetic compatibility), climate and mechanical load, see data sheet 30030-U.

Bearing flushing

With the following operating conditions, bearing flushing is necessary for safe continuous operation:

Applications with special fluids (not mineral fluids) due to limited lubricity and tight operating temperature range

Operation with boundary conditions of temperature and viscosity with mineral oil operation

With vertical installation (drive shaft upwards), bearing flushing is recommended for lubrication of the front bearing and the shaft seal ring.

The bearing is flushed using port "U" in the area of the front flange of the variable displacement pump. The flushing fluid flows through the front bearing and exits with the pump leakage at the leakage connection.

For the individual sizes, the following flushing quantities are recommended:

Size			40	71	125	180	250	355
recommended flushing quantity	q_Sp	l/min	3	4	5	7	10	15

The specified flushing quantities result in a pressure differential between port "U” (including fitting) and the leakage chamber of approx. 2 bar (series 1) and approx. 3 bar (series 3).

When using the external bearing flushing, the throttle screw in port U has to be screwed-in to the stop.

Leakage pressure

The admissible leakage pressure (housing pressure) depends on the speed (see diagram).

Max. leakage pressure (housing pressure)

p_{L abs max} = 4 bar absolute

These specifications are guidelines; under special operating conditions, a limitation may become necessary.

Flow direction

S → B

Control loop quality

Notes:

The specified values are only valid when using the system-related components specified in this data sheet.

At pressures < 20 bar, higher tolerances have to be anticipated due to lower actuating forces.

	Swivel angle control	Pressure control ¹⁾
Linearity tolerance	≤ 1.0 %	≤ 1.5 %
Temperature error	≤ 0.5 % / 10 K	≤ 0.5 % / 10 K
Hysteresis	≤ 0.2 %	≤ 0.2 %
Repetition accuracy	≤ 0.2 %	≤ 0.2 %

¹⁾	Without considering the pump pulsation.

Through-drives: Torques

Admissible drive and through-drive torques
Size			40	71	125	180	250	355
Splined shaft
Maximally admissible total drive torque at the shaft of pump 1 (pump 1 + pump 2)	T_Ges max	[Nm]	446	790	1392	2004	2782	3952
A Admissible through-drive torque	T_D1 max	[Nm]	223	395	696	1002	1391	1976
A Admissible through-drive torque	T_D2 max	[Nm]	223	395	696	1002	1391	1976
B Admissible through-drive torque	T_D1 max	[Nm]	223	395	696	1002	1391	1976
B Admissible through-drive torque	T_D2 max	[Nm]	223	395	696	1002	1391	1976
Fitting key
Maximally admissible total drive torque at the shaft of pump 1 (pump 1 + pump 2)	T_Ges max	[Nm]	380	700	1392	1400	2300	3557
A Admissible through-drive torque	T_D1 max	[Nm]	223	395	696	1002	1391	1976
A Admissible through-drive torque	T_D2 max	[Nm]	157	305	696	398	909	1581
B Admissible through-drive torque	T_D1 max	[Nm]	157	305	696	398	909	1581
B Admissible through-drive torque	T_D2 max	[Nm]	223	395	696	1002	1391	1976

Distribution of the torques

Admissible mass torque

related to mounting flange of the main pump

T_m[Nm]	Admissible mass torque
m₁, m₂ [kg]	Weight of the pump
l₁, l₂ [mm]	Distance of the center of gravity

Size			40	71	125	180	250	355
Admissible mass torque	T_m zul.	Nm	1800	2000	4200	4200	9300	9300
Admissible mass torque with dynamic mass acceleration of 10 g = 98.1 m/sec²	T_m zul.	Nm	180	200	420	420	930	930
Weight (SYHDFE or A4VSO...DR)	m	kg	39	53	88	102	184	207
Distance of the center of gravity	l₁	mm	120	140	170	180	210	220

Tightening torques:

The tightening torques specified in this data sheet are maximum values and must not be exceeded (maximum values for screw-in threads).
Manufacturer's specifications on the max. admissible tightening torques of the fittings used are to be observed!

For mounting screws according to DIN 13, we recommend checking the tightening torque case by case according to VDI 2230, version 2003.

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