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 FZ-J magnetic power brake
 Hits:11639 AddTime:2018/10/18 13:26:34



FZ - J (shaft coupling, base support) magnetic powder brake
Structure and working principle:
Magnetic powder brake is by the rotor, stator, including excitation winding magnetic yoke, relative concentric three parts assembly, can form a relative rotation of whole, in the annular space between the rotor and stator (cavity) filled with high magnetic conductivity alloy magnetic powder.

Excitation, and current through the coil, the working cavity of magnetic powder in loose state.Under the action of centrifugal force produced by the rotor and magnetic powder is evenly in the rotor on the inner wall of the weak interaction between rotor and stator, magnetic powder brake is in idle state, no torque output.

Field coil is energized, the yoke of magnetic flux, the magnetic powder in working cavity along the direction of the magnetic flux is chain link, magnetic powder brake is on the magnetic powder and magnetic powder, magnetic powder and working surface between friction and magnetic powder chain between the shear resistance to produce torque, magnetic powder brake in the loaded state.

Cut off the current, flux disappear, with the disappearance of the exciting current of magnetic powder under the action of gravity, in a loose state again, and under the action of centrifugal force, was dumped on the interior surface of the rotor, magnetic powder brake and is in a state of light. Features: The excitation current and torque is linear relationship.

When the excitation current is kept constant, the torque is not affected by the speed of the rotor, that is to say there was no difference in the static friction torque and friction torque, so can steadily implement torque constant.

This feature is applied to the dynamic test, the user just adjust the excitation current can accurately control the torque, so as to effectively control the size of the load resistance. Usually continuous sliding friction parts will be fever, and even burn out.But this equipment has the complete radiator, long time operation is not too hot, and long service life.



Model
Rated torque(N•m)
Excitation coil
Allowable rotational speed(r/min)
Slip power(KW)
Outline dimension
Shaft coupling size
Base support size
Cooling mode
Voltage(V)
Current
(A)
H
L
d(h7)
b(p7)
L1
L2
L3
L4
L5
L6
H1
d1
h
FZ2.5.J
2.5
24
0.4
1500
0.03
110
88
10
3
20
9
50
68
100
120
60
7
12
Self cooling
FZ5.J
5
24
0.5
1500
0.06
138
94
12
4
25
10
50
68
120
140
75
7
12
FZ10.J
10
24
0.6
1500
0.12/0.8
166
103
14
5
25
7
60
85
120
150
90
10
12
Self/single water cooling
FZ25.J
25
24
0.8
1500
0.2/1.2
196
115
20
6
36
5
70
96
150
180
110
12
15
FZ50.J
50
24
1.0
1500
0.3/2
240
140
25
8
42
11
80
105
180
210
130
12
16
FZ100.J/Y
100
24
1.2
1500
3/5
284
249
30
8
58
11
100
130
250
290
155
12
18
Single/double water cooling
FZ200.J/Y
200
24
1.8
1000
4/8
329
260
35
10
58
10
120
165
280
330
180
15
22
FZ400.J/Y
400
24
2.5
1000
5/12
400
313
45
14
82
14
130
180
330
390
215
15
22
FZ630.J/Y
630
36
2.5
750
15
441
374
60
18
105
20
150
210
410
480
240
19
30
Double water cooling
FZ1000.J/Y
1000
36
2.5
750
20
523
417
70
20
105
35
160
210
470
540
280
19
35
FZ1500.J/Y
1500
36
3.0
750
25
556
480
75
20
105
70
160
210
470
540
300
19
40
FZ2000.J/Y
2000
36
3.0
500
30
619
486
80
22
130
56
170
240
580
660
330
24
40
FZ5000.J/Y
5000
36
3.5
400
50
824
576
90
25
140
13
320
388
600
700
430
24
50
FZ10000.J/Y
10000
36
4.0
300
65
1126
651
120
32
160
18
360
450
900
1030
600
28
88
FZ20000.J/Y
20000
48
5.0
300
90
1205
916
140
36
180
45
480
560
950
1100
650
34
100
FZ30000.J/Y
30000
90
4.0
300
132
1205
1271
160
40
200
194
见图
690
1050
1180
650
34
120
FZ50000.J/Y
50000
90
5.0
250
160
1298
1965
180
45
250
549
见图
690
1050
1180
700
34
120
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