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A kind of low slip rate gear and its design method

A sliding rate and gear technology, applied in the direction of belts/chains/gears, mechanical equipment, components with teeth, etc., can solve the problems of easy wear and high sliding rate of gears, reduce wear, increase bearing capacity, and improve transmission efficiency Effect

Active Publication Date: 2022-07-26
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

[0003] In view of the above problems, the present invention proposes a low-slip gear and a design method that can solve the problem of high slip rate and easy wear of the existing gear during the transmission process, and is beneficial to further improve the transmission efficiency of the gear pair.

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  • A kind of low slip rate gear and its design method
  • A kind of low slip rate gear and its design method
  • A kind of low slip rate gear and its design method

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Embodiment Construction

[0028] In order to clearly illustrate the technical features of the present patent, the present patent will be described in detail below through specific embodiments and in conjunction with the accompanying drawings.

[0029] The present invention is as Figure 1-4 As shown, in the low-slip ratio gear provided by the present invention, the shaped rack used for designing the tooth profile of the low-slip ratio gear is obtained by establishing a meshing path curve that can realize a low slip ratio of the gear pair, and the meshing path curve AB equation (in figure 1 in the coordinate system xoy) is:

[0030] y=a 1 x+a 2 x 3

[0031] Among them, a 1 , a 2 is the general coefficient, x is the independent variable of the equation, the origin o of the coordinate system is at the node position, the x-axis is the common tangent of the pitch circle, and the y-axis passes through the center of the two gears o 1 , o 2 .

[0032] The low-slip rate gear tooth profile provided by ...

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Abstract

The invention discloses a low sliding rate gear and a design method thereof, and relates to the technical field of gear transmission. A low-slip-rate gear and a design method are proposed, which can solve the problems of high slip rate and easy wear of the existing gear during the transmission process, and are beneficial to further improve the transmission efficiency of the gear pair. In the low-slip rate gear and design method of the present invention, a low-slip rate production rack is constructed according to the proposed tooth profile meshing path curve, and then the low-slip rate gear tooth profile is obtained from the production rack through the enveloping motion. The coefficients of the meshing path curve equation are adjustable (under the premise of satisfying the boundary condition of low slip rate), so it can satisfy the optimization of the slip rate at any moment in the gear transmission process (except for nodes, where the slip rate is 0). , which is conducive to improving the transmission efficiency, reducing the sliding rate of the gear transmission, reducing the wear of the gear during the transmission process, improving the bearing capacity of the gear, and optimizing the lubrication conditions of the gear.

Description

technical field [0001] The invention relates to the technical field of gear transmission, and mainly relates to a structure and a design method of a low sliding rate gear. Background technique [0002] Gears are important components in the field of machinery and have been widely used in aerospace, rail transit, construction machinery and precision instruments. In the process of gear meshing, due to the different linear velocities of the two tooth profiles at the same meshing point (except for the node), there is a relative slip between the two meshing tooth profiles. The relative sliding between the tooth surfaces will not only reduce the meshing efficiency between the tooth profiles, but also accelerate the tooth surface wear or glue failure. The commonly used slip rate represents the degree of relative sliding between the tooth surfaces. The tooth profile slip rate of common gears is relatively high. Therefore, during the transmission process, the tooth root and tooth tip...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H55/17F16H55/22G06F17/11
CPCF16H55/17F16H55/22G06F17/11
Inventor 李政民卿盛伟冯小毛赵江侯磊张红朱如鹏
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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