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A kind of full string gear and its gear set

A technology of strings and gears, applied in the field of new-tooth fixed-tooth gears, can solve problems such as inability to achieve a continuous and stable state, and achieve the effect of variable forms, strong bearing capacity, and high-precision transmission without backlash

Active Publication Date: 2021-09-28
YANSHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] According to the above-mentioned technical problem that the entire part of the existing tooth profile is still an involute, its transmission cannot reach a perfect continuous and stable state, and a full-cascade gear and its gear set are provided

Method used

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  • A kind of full string gear and its gear set
  • A kind of full string gear and its gear set
  • A kind of full string gear and its gear set

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0080] Such as figure 1 and 2 As shown, the tooth profile of the chordal cylindrical gear and the tooth profile 2 of the chordal cylindrical gear can adopt any one of the following three curves:

[0081] The parameter equation of the first kind of chordal tooth profile in the xoy plane Cartesian coordinate system is:

[0082]

[0083] The parametric equation of the second kind of chordal tooth profile in the xoy plane Cartesian coordinate system is:

[0084]

[0085] The parametric equation of the third kind of chordal tooth profile in the xoy plane Cartesian coordinate system is:

[0086]

[0087] In the above formulas: are independent variables, x1 and y1 are intermediate variables; a, b, r1, Z1, Z2 and a0 are constant items, all constant items are greater than or equal to zero, and Z1 and Z2 are positive integers.

[0088] exist figure 1 Among them, make any normal section α perpendicular to the shaft 5 of the chord-line cylindrical gear that intersects with th...

Embodiment 2

[0091] Such as Figure 3-7 As shown, each gear has a total of 49 teeth, the tooth profile curve is the same, and the tooth top development line is different. Their tooth profile curves (unit: mm) are as follows:

[0092]

Embodiment 3

[0094] Such as Figure 8-12 As shown, each gear has 50 teeth in total, the tooth profile curves are the same, and the tooth top development lines are different. Their tooth profile curves (unit: mm) are as follows:

[0095]

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Abstract

The present invention provides a full chord gear, comprising: a chordal cylindrical gear and a chordal bevel gear, the addendum lines of all the teeth of the chordal cylindrical gear are on the same cylindrical surface; all of the chordal bevel gears The addendum line of the tooth is on the same conical surface; through any point on the shaft of the chord cylindrical gear or the chord bevel gear, make its axial normal section, and the normal section is the same as the chord line Cylindrical gears or the chord-line bevel gear intersect, and the boundary formed by all the teeth on it is a chord-line tooth profile. The present invention mainly utilizes a new type of chord-line tooth profile, and the chord-line tooth profile is periodically distributed in a plane with multiple The continuous closed curve of the wave, the application of this new type of chordal tooth profile is flexible and varied, covering a wide range, and can replace the entire series of involute gears.

Description

technical field [0001] The present invention relates to the technical field of new-tooth-type fixed-tooth gears, in particular to a full-cascade gear and a gear set thereof. Background technique [0002] The most widely used gear tooth shape is involute. Involute gears are easy to design and manufacture, stable in transmission, and good in interchangeability. However, they also have disadvantages such as low strength and limited load-carrying capacity, which cannot meet the transmission needs of some occasions. In order to design and manufacture gears with better performance, people began to change the tooth profile curve, and designed arc gears, double arc gears and micro-segment gears. Arc gears and double arc gears have high tooth profile strength and strong load-carrying capacity, but the design and manufacture of gears are relatively difficult. Compared with the traditional involute gear, the strength and efficiency of the micro-segment gear have been greatly improved,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H55/18F16H55/08
CPCF16H55/08F16H55/18
Inventor 许立忠闫济东李佳怡
Owner YANSHAN UNIV
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