Design method for curved-tooth non-circular gear

A non-circular gear and design method technology, which is applied to components with teeth, belts/chains/gears, calculations, etc., can solve problems such as high sensitivity to errors, low motion accuracy, and inability to use in high-speed occasions

Active Publication Date: 2016-08-24
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
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Problems solved by technology

[0004] However, the above traditional non-circular gears have straight teeth or helical teeth, and the meshing form is line contact meshing.
Due to the processing of non-circular gears, the machine tool needs to do

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  • Design method for curved-tooth non-circular gear
  • Design method for curved-tooth non-circular gear
  • Design method for curved-tooth non-circular gear

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[0050] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0051] In a preferred embodiment of the present invention, a method for designing a non-circular gear with curvilinear teeth, the tooth profile of the non-circular gear with curvilinear teeth is designed as a circular arc in the direction of the tooth length, and the tooth profile is designed through the shape-producing gear, including: The following steps:

[0052] S1. Solve the pitch surface and the tooth tip surface of the non-circular gear:

[0053]S101. Select an appropriate transmission ratio, and determine the pitch surface of the non-circular gear according to the transmission rat...

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Abstract

The invention belongs to the technical field of non-circular gears and discloses a design method for a curved-tooth non-circular gear. The tooth profile of the curved-tooth non-circular gear is designed through a generating gear. The tooth profile equation is solved according to the curved surface of a counterpart rack, the kinematic relation of gear generation and the engagement principle. Compared with a straight gear, the curved-tooth non-circular gear designed through the method is high in contact ratio and bearing capacity. Compared with a bevel gear, the curved-tooth non-circular gear designed through the method does not generate axial force in the transmission process and has low requirements on bearings and installation. Through the arc tooth profile of the curved-tooth non-circular gear, lubricating oil is contained in the tooth surface, and therefore a quite good lubricating condition is achieved.

Description

technical field [0001] The invention relates to a non-circular gear, in particular to a design method of a curved-tooth non-circular gear. Background technique [0002] Non-circular gears are used to transmit non-uniform motion between two shafts. Compared with other non-uniform speed ratio transmission mechanisms (such as cams, connecting rods, etc.), they have the advantages of stable transmission, compact structure, and high motion precision. They are widely used in textiles, cigarettes, In papermaking and other machinery and equipment. However, because the pitch curve is non-circular, the design and manufacture are much more complicated than circular gears, and three-dimensional modeling is particularly difficult. [0003] The motion characteristic of non-circular gears is that it can realize the nonlinear relationship between the rotation angles of the active mechanism and the driven mechanism, so it has been paid more and more attention in light industry, heavy indust...

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Application Information

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IPC IPC(8): F16H55/17F16H55/08G06F17/50
CPCF16H55/084F16H55/17G06F30/17
Inventor 华林陈石韩星会郑方焱
Owner WUHAN UNIV OF TECH
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