Page 61 - Wire Rope News & Sling Technology - February 2019

INVENTOR’S CORNER
space is formed between the two end plates (end plate 21
and end plate 22) and the winding shaft 23.
The two ends of the winding shaft 23 respectively pass
through the corresponding end plate and fit the rack 1 via
a bearing component, thus it may guarantee that the whole
winding drum 2 can perform releasing and retracting rota-
tion relative to the rack 1. In order to increase the rope wind-
ing capability of the winding drum 2, the above end plate 21,
end plate 22 and winding shaft 23 are all made of materials
with high strength. For example, the winding shaft 23 is a
titanium alloy tube. By employing a titanium alloy tube, the
strength can be improved, and at the same, the diameter of
the winding shaft 23 can be reduced, thereby the winding
space can be widened for winding a longer rope 3.
Referring again to figures 1, 3 or 4, in the embodiment
of the invention, the winding drum 2 is driven by a driving
motor 6 to rotate via a driving chain 7. However, the wind-
ing drum 2 may also be driven by other driving devices such
as a driving motor, etc., and the specific type of the driving
Figure 3:. Top structural representation of figure 1.
device will not be limited in the embodiments of the inven-
refers to that the winding drum 2 rotates in the direction by tion. However, the driving device may also be driven in other
which the rope 3 release to the drilling well, and the back- types of driving modes such as belt drive and gear drive, etc.,
ward rotation is opposite to the direction of forward rotation, rather than being limited to the driving chain 7.
and the backward rotation of the winding drum 2 can realize The first turning wheel 8 is set on the rack 1 and is lo-
the winding and retracting of the rope 3. The winding drum cated on a rope releasing and retracting line of the winding
2 may have various types and structures, so long as the rope drum 2. The wheel rim of the first turning wheel 8 has a
3 can be wound thereon, and it is not limited in the embodi- first groove, which can fit the rope 3 that is wound to the
ments of the invention. Referring again to figure 4, it shows winding drum 2 or released from the winding drum 2 and
a winding drum 2 with a specific structure, and the winding can rotate synchronously as driven by the rope 3. The rope
drum 2 shown includes two end plates (end plate 21 and end 3 moves under the action of the rope winder, thereby the
plate 22) and a winding shaft 23 located between the two first turning wheel 8 is driven to rotate synchronously by
end plates (end plate 21 and end plate 22), and a winding continued on next page

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Wire Rope News & Sling Technology February 2019 61