Danfoss_OMT_Series_Technical_Data.pdf - 第65页

Attached component internal splines for OMVS The attached component must have internal splines corresponding to the external splines on the motor cardan shaft (see the following drawing). Material Case hardening steel wi…

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Installing the OMVS
The cardan shaft of the OMVS motor acts as an “output shaft”. Because of the movement of the shaft, no
seal can be fitted at the shaft output.
Internal oil leakage from the motor will therefore flow into the attached component.
During start and operation it is important that the spline connection and the bearings in the attached
component receive oil and are adequately lubricated. To ensure that the spline connection receives
sufficient oil, a conical sealing ring between the shaft of the attached component and the motor
intermediate plate is recommended. This method is used in the OMV.
The conical sealing ring (code. no. 633B9021) is supplied with the motor.
To ensure that oil runs to the bearings and other parts of the attached component, the stop plate must
have a hole in it (see fig. below).
We recommend an O-ring between motor and attached component. The O-ring (code no. 151B1041) is
supplied with the motor. If motor and attached component have been separated, remember to refill
before starting up. Fill the oil through the drain connection.
Attached component dimensions for OMVS
OMVS dimensions of the attached component in millimeter [inches]
E
B
A
C
F
G
H
D
2.35 [0.093]
2.25 [0.089]
0.25 [0.010]
0.1˚
6 [0.24]
4 [0.16]
32.5 [1.280]
31.5 [1.240]
53.3 [1.098]
52.7 [2.075]
76.3 [3.004]
75.7 [2.980]
9.5 [0.374]
8.5 [0.335]
8.4 [0.331]
7.6 [0.299]
20.5 [0.807]
19.5 [0.768]
28.7 [1.130]
26.3 [1.035]
151-815.11
min. 5 [0.2]max. 2 [0.08]
min. Ø6 [0.24]
Ø140.063 [5.5143]
Ø140.000 [5.5118]
min. Ø60 [2.36]
Ø147.9 [5.823]
Ø147.7 [5.815]
Ø56.3 [2.217]
Ø55.5 [2.165]
Ø46.2 [1.819]
Ø45.8 [1.803]
Ø102 [4.02]
Ø100 [3.94]
Ø61.2 [2.409]
Ø61.0 [2.402]
Ø71 [2.80]
Ø69 [2.72]
R
K
K
K
A: O-ring: 140 × 3 mm
B: External drain channel
C: Drain connection G 1⁄4; 12 mm [0.47 in] deep
D: Conical seal ring
E: Internal drain channel
F: M12; minimum 18 mm [0.71 in] deep
G: Oil circulation hole
H: Hardened stop plate
Technical Information
OMT and OMV Orbital Motors
OMVS
64 |
©
Danfoss | September 2021 BC152886483862en-000801
Attached component internal splines for OMVS
The attached component must have internal splines corresponding to the external splines on the motor
cardan shaft (see the following drawing).
Material
Case hardening steel with a tensile strength corresponding at least to 20 MoCr4 (900 N/mm
2
) or SAE
8620.
Hardening specification
•
On the surface: HV = 750 ± 50
•
0.7 ± 0.2 mm under the surface: HV = 560
Internal involute spline data; Standard ANS B92.1-1996, class 5 (corrected m · X = 1; m = 2.54)
Flat root side fit mm [in]
Number of teeth z 16
Pitch DP 10/20
Pressure angle 30°
Pitch diameter D 40.640 [1.6]
Major diameter D
ri
45.2
0
+0.4
[1.780
0
+0.016
]
Form diameter (minimum) D
fi
44.6 [1.756]
Minor diameter D
i
38.5
0
+ 0.039
[1.516
0
+ 0.0015
]
Space width (circular) L
o
5.180 ±0.037 [0.204 ±0.0015]
Tooth thickness (circular) S
o
2.835 [0.1116]
Fillet radius R
min.
0.4 [0.015]
Maximum measurement between pins
*
l 32.47
0
+ 0.15
[1.278
0
+0.006
]
Pin diameter d 5.6 ±0.001 [0.22 ±0.00004]
*
Finished dimensions (when hardened)
d
l
D
D
ri
D
i
D
fi
S
o
L
o
R
min
151-816.10
Motor or attached component drain connection
Use the drain line when pressure in the return line exceeds the permissible pressure on the shaft seal of
the attached component.
Connect the drain line either at the:
•
Motor drain connection
•
Drain connection of the attached component
If a drain line is fitted to the attached component, it must be possible for oil to flow freely between motor
and attached component.
Technical Information
OMT and OMV Orbital Motors
OMVS
©
Danfoss | September 2021 BC152886483862en-000801 | 65
The drain line must be led to the tank in such a way that there is no risk of the motor and attached
component being drained of oil when at rest.
The maximum pressure in the drain line is limited by the attached component and its shaft seal.
Technical Information
OMT and OMV Orbital Motors
OMVS
66 |
©
Danfoss | September 2021 BC152886483862en-000801