A three-degree-of-freedom spherical tooth transmission pair
A transmission pair, degree of freedom technology, applied in gear transmission, transmission, belt/chain/gear, etc., can solve the problem of high processing cost, can not meet the requirements of multiple transmission degrees of freedom, ball gear mechanical wrist can not be connected and clamped equipment and other problems, to achieve the effect of easy processing
Active Publication Date: 2020-07-24
CHANGCHUN UNIV OF SCI & TECH
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Problems solved by technology
[0002] The traditional gear mechanism is a single-degree-of-freedom transmission, which cannot meet the requirements of multiple transmission degrees of freedom in emerging fields. The appearance of spherical gears has completely changed this phenomenon.
[0003] In the 1980s, Norwegian engineers invented the world's first Trallfa painting robot flexible wrist based on ball gear transmission with two degrees of freedom of motion, which can transmit two-dimensional rotary motion. It is difficult to manufacture and the processing cost is too high
But the ball gear has only two degrees of freedom, and the gripper cannot be connected to the wrist based on the ball gear
Method used
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[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0029] The purpose of the present invention is to provide a ball-tooth transmission pair that is easy to process, stable in meshing transmission, and has no error in the transmission principle, and can realize three degrees of freedom of yaw, pitch and rotation around the axis.
[0030] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conj...
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The invention discloses a three-degree-of-freedom spherical tooth transmission pair, which relates to the technical field of mechanical transmission and bionic motion joints, comprising: a discrete spherical gear and a continuous spherical gear, the discrete spherical gear meshes with the continuous spherical gear, Both discrete ball gears and continuous ball gears include multiple plane involute annular tooth surfaces and multiple spherical involute spherical bevel tooth surfaces, and the plane involute annular tooth surfaces and spherical involute spherical bevel tooth surfaces are perpendicularly intersected Set to form a plurality of convex buttons of discrete ball gears, the plane involute annular tooth surface and the spherical involute spherical bevel tooth surface are perpendicularly intersected to form a plurality of concave surface buttons of continuous ball gears, one convex button is used In order to overcome the defects of existing spherical gears with only two degrees of freedom, high manufacturing difficulty and high processing cost, it can realize three degrees of freedom of yaw, pitch and rotation around the axis. Easy to process, stable meshing transmission and no error in transmission principle.
Description
technical field [0001] The invention relates to the technical field of mechanical transmission and bionic motion joints, in particular to a three-degree-of-freedom spherical tooth transmission pair. Background technique [0002] The traditional gear mechanism is a single-degree-of-freedom transmission, which cannot meet the requirements of multiple transmission degrees of freedom in emerging fields. The appearance of spherical gears has completely changed this phenomenon. [0003] In the 1980s, Norwegian engineers invented the world's first Trallfa painting robot flexible wrist based on ball gear transmission with two degrees of freedom of motion, which can transmit two-dimensional rotary motion. It is difficult to manufacture and the processing cost is too high. [0004] Pan Cunyun and others proposed a "involute ring ball gear", which is formed by the rotation of a plane involute around the axis, and any section passing through the axis is a plane involute tooth profile. ...
Claims
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IPC IPC(8): F16H1/24
CPCF16H1/24
Inventor 王佰超许镇全路先亭王德民宋林森张澧桐顾莉栋王俊王俊生张旭忠张宏宇朱静玉刘玉良
Owner CHANGCHUN UNIV OF SCI & TECH