Beijing Jietaihongli Technology Co., Ltd. |
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Rotary Sleeve Quick Details
The present invention discloses a power head driving
key sleeve device and a power head of a rotary drill. The driving
key sleeve device comprises a driving sleeve and a driving key for
cooperating with the drill pipe. The inner wall of the driving
sleeve is provided with a plurality of mounting grooves extending
along the axial direction thereof, and each mounting groove is
provided with a driving key. Each driving key includes a first key
body matched with the sliding gap of the mounting groove and a
second key body protruding from the inner wall of the driving
sleeve, The first key body and the second key body are arranged
coaxially with the drive sleeve; Each drive key is fixedly
connected with the drive sleeve through its corresponding upper and
lower pressing plates. The driving key sleeve device of the present
invention fixes the driving key strip by setting upper and lower
pressing plates at both ends of the driving sleeve, which is
conducive to the replacement and maintenance of the driving key
strip of the power head; The power head of the rotary drilling
machine of the invention adopts a new dovetail type key bar driving
mode, which can further improve the efficiency and stability of
product construction, and better create more profits for customers.
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