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※ Derricking gear of Tower Crane TQR-43 Type
 
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Derricking gear of Tower Crane TQR-43 Type
Introduction：
I Performance
Derricking gear is drive device to finish level function of loading dolly of tower crane, it is divided into gear worm speed reducer and planet-gear drive speed reducer. Gear worm speed reducer has simple and close structure, can be installed at the end of gib arm of tower crane with reasonable price, economical and practical performance. Planet-gear drive speed reducer adopts planet drive principle with close structure, small volume, light weight, low noise, stable running and long service life.

II Principle Specs and Technical Parameter
Performance parameter/Model
TQR-43
Motor
Model
YDEJ132S-4/8
Rotate Speed (r/min)
1440
720
Power (Kw)
3.3
2.2
Brake Moment (N.m)
75
Speed Reducer
Model
TQR-43
Speed Radio
43
Drum
Diameter (mm)
410
Diameter of rim (mm)
453
Length of Rope Roll (mm)
380
420
Cope Capacity (mm)
55
61
Rope pitch (mm)
8.5
Overall Dimension
Length (mm)
960
1000
Width (mm)
450
Height (mm)
580
Height of center (mm)
292
Space between brackets (mm)
485
525

III Structure of Machinery and Installed Dimension
Cope Capacity (m)
L1
L2
L3
55
380
485
960
61.5
420
525
1000

Derricking gear of TOR-43 Speed Ratio：i＝43
Matched Motor YDEJ132S-4/8 202/3.3kw
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