Fig. 1 Structural diagrams of POC series powder clutches (representative examples)
Structure and principle of operation
● The magnetic powder clutch structure is shown in Fig. 1. The drive member linked to the input side and the driven member linked to the output side are disposed concentrically across a powder gap.
● The powder gap is filled with powder (magnetic iron powder), and the coil for passing a magnetic flux to the powder is built in the stator, and it is designed to feed direct current from outside through the lead wire.
● While the drive member is rotating, when a current flows in the coil, a magnetic flux is generated as indicated by broken line in the drawing, and the powder is linked like a chain along the magnetic flux, and its coupling force the driven member is driven, and the torque is transmitted to the output side.
● When the exciting current is cut off, the magnetic flux disappears, and the coupling force of the powder is eliminated, thereby cutting of transmission of powder to the driven member.
Feature
Magnetic powder clutch data
|
|||||||
Model |
POC-006 |
POC-015 |
POC-025 |
POC-050 |
POC-100 |
POC-200 |
|
Rated torque [kgf-m](N-m) |
0.6(6) |
1.2(12) |
2.5(25) |
5(50) |
10(100) |
20(200) |
|
Capacity |
Current (A) |
0.74 |
0.9 |
1.1 |
1.4 |
2.0 |
2.5 |
Power (W) |
17.8 |
21.6 |
26.4 |
33.6 |
48 |
60 |
|
No. of hour set(S) |
0.04 |
0.04 |
0.06 |
0.09 |
0.14 |
0.3 |
|
Moment of inertia(kgcm2) |
Input side
|
2.70*10-3
|
6.3*10-3
|
1.2*10-2
|
2.6*10-2
|
7*10-2
|
2.1*10-1
|
Output side |
5.0*10-4
|
1.1*10-3
|
2.3*10-3
|
5.8*10-3
|
1.5*10-2
|
5.0*10-2
|
|
Weight(kg) |
2.7 |
5.2 |
9 |
14.5 |
37 |
53 |
|
Maximum speed (r/min) |
1800 |
1000 |
|||||
Weight of powder (g) |
14 |
25 |
39 |
60 |
117 |
255 |
|
|
|||||||
Exterior |
L1 |
86 |
103 |
119 |
150 |
166 |
198 |
L2 |
21 |
32 |
36 |
48 |
48 |
59 |
|
L3 |
58 |
58 |
66 |
82 |
100 |
118 |
|
L4 |
7 |
13 |
17 |
20 |
18 |
21 |
|
L5 |
1 |
2 |
2 |
3 |
4 |
1 |
|
L6 |
64 |
76 |
91 |
116 |
130 |
152 |
|
L7 |
21 |
25 |
26 |
31 |
32 |
45 |
|
D1 |
128 |
160 |
180 |
220 |
275 |
342 |
|
D2 |
82 |
96 |
114 |
150 |
176 |
200 |
|
D3(g7) |
70 |
80 |
90 |
110 |
125 |
160 |
|
D4 |
60 |
68 |
80 |
95 |
110 |
140 |
|
D5 |
60 |
68 |
80 |
95 |
110 |
140 |
|
D6 |
42 |
48 |
55 |
68 |
80 |
110 |
|
P |
M6*10L |
M6*10L |
M6*10L |
M8*12L |
M10*18L |
M10*18L |
|
Q |
M4*8L |
M6*8L |
M6*8L |
M8*12L |
M10*18L |
M10*18L |
|
d(H7) |
15 |
18 |
20 |
30 |
35 |
45 |
|
w(F8) |
4 |
5 |
6 |
8 |
10 |
14 |
|
T |
16.5 |
20 |
22 |
33 |
38.5 |
49 |
|
Magnetic powder clutch exciting current VS torque
Powder clutch|brake Application
Application scenarios