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Ball gear fluted disc mechanism

A technology of spherical gears and spherical gears, which is applied in the direction of belts/chains/gears, mechanical equipment, components with teeth, etc., can solve the problems of non-interchangeability, etc., and achieve compact structure, high degree of coincidence, and continuous meshing transmission Effect

Pending Publication Date: 2022-03-01
CHANGCHUN UNIV OF SCI & TECH
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Problems solved by technology

[0003] The Chinese patent publication number is: CN 110645320 A, and the patent name is "a ball gear chainring mechanism". This technical scheme proposes a ball gear chainring mechanism. Cogged gears are only applicable to this chainring mechanism and are not interchangeable
2. The teeth on the tooth plate are discretely distributed, and there is no continuity of meshing transmission

Method used

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specific Embodiment approach 1

[0026] Specific implementation mode 1. Combination Figure 1 to Figure 3 Describe this embodiment, a ball gear chainring mechanism, to solve the problem of the continuity of the meshing of ball gear chainrings and the demand for ball gear chainring pairs in domestic emerging fields. The spherical gear chainring structure proposed in this embodiment can realize three degrees of freedom of yaw, pitch and rotation.

[0027] Figure 1-3 As shown, a ball gear chainring mechanism provided by the present invention includes an involute convex spherical gear 1 and an involute convex tooth plate 3 that is completely meshed with it. The involute convex spherical gear 1 is a hemisphere, and It can be divided into convex spherical gear and concave spherical gear. The teeth on the spherical gear are all composed of plane involute annular tooth surfaces and spherical involute arc tooth surfaces, and the tooth surfaces are staggered to form tooth slots. The involute tooth disc 3 is a cylin...

specific Embodiment approach 2

[0029] Specific implementation mode 2. This implementation mode is an embodiment of a ball gear chainring mechanism described in specific implementation mode 1:

[0030] The known spherical gear data is: pitch radius r 1 =50, base sphere radius r b =23.5, ring gear parameters are: modulus m=2, number of teeth Z 1 =25, graduation circle pressure angle α=20°. The parameter of the arc tooth is: the number of teeth Z 2 =12, graduated circle pressure angle α s = 20°.

[0031] At this time, the tooth disc data can be calculated:

[0032] The tooth surface of the ring tooth is a plane, the involute of the plane is a straight line, and the tooth thickness of the pitch circle is equal to the tooth pitch, and the size is π.

[0033] arc pitch cone angle by sin b = sinγ p *cosα s Calculate its base cone angle as γ b =70°, through

[0034] Calculate the spherical involute polar angle ψ. Finally, the spherical gear arc tooth surface equation is used:

[0035] Spherical inv...

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Abstract

The invention discloses a ball gear fluted disc mechanism, relates to the technical field of mechanical transmission, and solves the problem of transmission continuity in the prior art. The mechanism comprises an involute spherical gear and an involute fluted disc meshed with the involute spherical gear. Tooth surfaces on the involute spherical gear and the involute fluted disc are formed by intersecting a plane involute annular tooth surface and a spherical involute arc-shaped tooth surface; teeth are continuously distributed in a staggered mode to form tooth grooves, the teeth of the involute spherical gear are meshed with the tooth grooves of the involute fluted disc, the teeth of the involute fluted disc are meshed with the tooth grooves of the involute spherical gear, and therefore three-freedom-degree movement of deflection, pitching and autorotation of the involute spherical gear on the involute fluted disc is achieved. The mechanism does not have theoretical transmission errors, is a spherical gear fluted disc mechanism which is high in contact ratio, continuous in transmission and capable of meeting the requirements of the emerging field for a novel mechanical transmission mechanism, and has three degrees of freedom of pitching, deflection and rotation around the axis.

Description

technical field [0001] The invention relates to the technical field of mechanical transmission, in particular to a ball gear chainring mechanism. Background technique [0002] Ball gear transmission is a new type of mechanical transmission and a new multi-degree-of-freedom gear structure, which has great advantages in changing the transmission mode of the mechanism and improving the degree of freedom of the previous gears. The spherical gear chainring structure can meet the demand for multi-degree-of-freedom gears in domestic emerging fields. [0003] The Chinese patent publication number is: CN 110645320 A, and the patent name is "a ball gear chainring mechanism". This technical scheme proposes a ball gear chainring mechanism. Alveolar gears are only applicable to this chainring mechanism and are not interchangeable. 2. The teeth on the chainring are distributed discretely, without continuity of meshing transmission. Contents of the invention [0004] The purpose of th...

Claims

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Application Information

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IPC IPC(8): F16H55/08F16H55/17
CPCF16H55/0806F16H55/17F16H2055/173
Inventor 王佰超王丞张澧桐张雪顾莉栋宋林森顾鹏孙晨晨赵鹏程王鑫荆事成吕智王慧冬杨文香
Owner CHANGCHUN UNIV OF SCI & TECH
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