Niemann tooth profile worm and gear used for rotating supporting speed reducer
A worm gear, slewing support technology, applied in the direction of gear transmission, belt/chain/gear, mechanical equipment, etc., can solve the problems of small torque, unsatisfactory efficiency, short service life and so on
Pending Publication Date: 2019-11-12
ZHEJIANG ESSOR PRECISION MACHINERY
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Problems solved by technology
Its disadvantages: small torque, unsatisfactory efficiency, small bearing capacity and short service life
Method used
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Embodiment 1
[0008] Embodiment 1: with reference to attached figure 1 . A Niemann tooth-shaped worm gear is used for a rotary support reducer. The worm 1 adopts a Niemann tooth shape and the geometric surface of the tooth shape is a concave arc surface; the worm wheel 2 adopts a Niemann tooth shape groove and the geometric surface of the tooth shape groove is a convex circle Arc surface; tooth geometry surface can be modified and optimized. The contact area between the worm 1 and the worm gear 2 tooth surface is larger (large contact area), easy to form an oil film (oil film layer), and the pressure is smaller. The Niemann toothed worm gear has high transmission efficiency, large bearing capacity and long service life. 3 is a casing, 4 is a bearing, and 5 is a flange. The assembly structure of the casing 3, bearing 4 and flange 5 is the prior art, and will not be described here.
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The invention relates to a Niemann tooth profile worm and gear used for a rotating supporting speed reducer, the worm and gear engaging tooth profile surface structure of the Niemann tooth profile worm and gear is large in torque, high in efficiency, large in bearing force and long in the service life. A worm adopts a Niemann tooth profile geometric surface as a concave arc surface; a worm gear adopts a Niemann tooth profile groove and the geometric surface of the tooth profile groove is a convex arc surface; and the tooth profile geometric surface can be subjected to shape correcting and optimized. The advantages that firstly, the Niemann tooth profile worm and gear has the special tooth profile geometrical surface design, so that the concave surface of the worm is matched with the convexsurface of the worm gear, and better tooth surface engaging and extremely low tooth surface pressure are guaranteed; and secondly, compared with a worm and gear in a common tooth profile, the Niemann(ZC) tooth profile worm and gear has large torque, higher efficiency, larger bearing force and long service life are achieved.
Description
technical field [0001] The invention relates to a Nieman toothed worm gear with a worm gear and worm meshing tooth surface structure with large torque, high efficiency, large bearing capacity and service life, which is used for a rotary support reducer, belonging to the field of rotary reducer manufacturing. Background technique [0002] CN105485255B, the name "double-lead worm reducer with Niemann worm gear teeth", includes: double-pitch Niemann worm shaft (10), which is connected from the centerline of the gear teeth to the first tooth surface and the slave gear teeth (110, 120, 130, 140) from the centerline (L1, L2, L3, L4) to the second tooth surface have different widths, the first tooth surface of the odd-numbered teeth has the same curvature radius and pressure angle, and the odd-numbered The second tooth surface of the tooth has the same radius of curvature and pressure angle, the first tooth surface of the even-numbered tooth has the same radius of curvature and pre...
Claims
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IPC IPC(8): F16H1/16F16H55/08
CPCF16H1/16F16H55/0826F16H55/0846
Inventor 林秀薰沙元彪黄宗俊朱泉泉
Owner ZHEJIANG ESSOR PRECISION MACHINERY