Ball screw jack - Nippon Gear - #29

/ 32


catalogue search
P. 01
P. 02
P. 03
P. 04
P. 05
P. 06
P. 07
P. 08
P. 09
P. 10
P. 11
P. 12
P. 13
P. 14
P. 15
P. 16
P. 17
P. 18
P. 19
P. 20
P. 21
P. 22
P. 23
P. 24
P. 25
P. 26
P. 27
P. 28
P. 29
P. 30
P. 31
P. 32
Pages:


See other catalogues for Nippon Gear

Text version of the page
Jack system
Screw jacks and ball screw jacks are linear actuators which can easily realize accurate interlocking. Please consider the adop­tion of jacks as a jack system combining geared motors and couplings.
Typical examples of system arrangement are shown below.
Note: If the input shaft is rotated in arrow direction, the lifting screw will ascend.
Type I
Type T
Geared limit switch
Bevel gear box
1
Driving source
Geared limit switch
Type U
Modified Type T
Geared limit switch
Q
Bevel gear box Geared limit switch
Bevel gear box \
OH K>
/
Bevel gear box
Bevel gear box
Driving power in the case of interlocked operation
When two or more jacks are arranged for interlocked opera­tion, the required power must be determined in consideration of the transmission efficiency, in addition to the power obtained as described above.
Type H
Number of jacks used
2
3
4
5-8
Transmission efficiency
0.95
0.9
0.85
0.8
Geared limit switch Bevel gear box
Required power per jack X number of jacks used
Required driving power­Transmission efficiency
Note: The value obtained by the above furmula is the power neces­sary for the jacks and jack driving system. For actual application, the efficiency of the driving speed reducer, etc., must also be considered.
Allowable torque of input shaft
When the input shafts are connected in a series as in the case of Type I shown above, the allowable input shaft torque is as follows.
(Unit: N-m)
1U
CH K>
MP
Bevel gear box Y
Bevel gear box
J0G(B)
J1G(B)
J2G(B)
J3G(B)
JGA
J4A(B)
J5A(B)
J6A(B)
JFA(B)
J7A(B)
50
145
272
272
272
834
1106
1954
1954

pageCatalog pdf di En 2012-05-22-31