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A new type of ball pair mechanism

A ball pair and connecting mechanism technology, applied in the direction of pivot connection, etc., can solve the problems of complex ball pair structure and small movement range, and achieve the effect of large movement range, improved performance, and improved movement space.

Active Publication Date: 2022-03-15
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to propose a new type of ball pair mechanism and multi-degree-of-freedom composite ball joint joint hinge for the problems of complex ball pair structure and small range of motion in the prior art

Method used

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  • A new type of ball pair mechanism
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specific Embodiment approach 1

[0038] Specific implementation mode one: refer to figure 1 Describe this embodiment in detail. A ball pair mechanism described in this embodiment includes at least one rotation group, and the rotation group includes: a rod rotation connection part 1, a pitch rotation connection part 2, a roll rotation connection part 3 and Rack 4;

[0039] The rod rotation connecting part 1 and the pitching rotation connecting part 2 are connected in rotation;

[0040] The pitch rotation connection part 2 and the roll rotation connection part 3 are connected by a moving pair, and the moving pair is arc-shaped;

[0041] The roll rotation connecting part 3 is connected to the frame 4 in rotation;

[0042] The axes of the rod rotation connecting part 1 and the roll rotation connecting part 3 and the arc trajectory axis of the pitch rotation connecting part 2 intersect at one point.

specific Embodiment approach 2

[0043] Embodiment 2: This embodiment is a further description of Embodiment 1. The difference between this embodiment and Embodiment 1 is that there are multiple rotating groups, and the rotating groups are connected through a connecting mechanism.

specific Embodiment approach 3

[0044] Embodiment 3: This embodiment is a further description of Embodiment 2. The difference between this embodiment and Embodiment 2 is that the connecting mechanism is a support member 11, and the mechanism is connected to on the support member 11. Such as figure 2 and image 3 shown.

[0045] Each individual new ball pair mechanism is connected to the support member 11 by rolling to form a freely rotatable connection. Similarly, according to the analysis of the above-mentioned new ball pair mechanism, the intersection points of the axes of each single new ball pair mechanism in the composite ball pair mechanism combined by the new ball pair mechanism are coincident, ensuring that the center of motion does not change.

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Abstract

A new type of ball pair mechanism and multi-degree-of-freedom composite ball joint joint hinge, which relates to the technical field of transmission mechanisms, aims at the problems of complex ball pair structure and small range of motion in the prior art, including at least one rotating group, and the rotating group includes: Rod rotation connection part, pitch rotation connection part, roll rotation connection part and frame; the rod rotation connection part and pitch rotation connection part are rotatably connected, and the pitch rotation connection part and roll rotation connection part pass through the moving pair connected, the moving pair is arc-shaped; the roll rotation connecting part is connected to the frame in rotation; the axis of the bar rotation connecting part and the rolling rotation connecting part and the arc track axis of the pitching rotation connecting part intersect at one point. The invention has a large range of motion, and ideally can achieve 360° motion. Compared with the traditional composite ball pair, the movement space is significantly improved. Each ball pair in the invention can move independently without interfering with each other, and can be superimposed.

Description

technical field [0001] The invention relates to the technical field of transmission mechanisms, in particular to a novel ball pair mechanism and a multi-degree-of-freedom compound ball joint joint hinge. Background technique [0002] There must be definite relative motion between the various components in the mechanism. Therefore, the connection of the components must not only make the two components directly contact, but also produce a certain relative movement. This kind of direct contact active connection is called kinematic pair. The spherical kinematic pair, referred to as the ball pair, is a kind of kinematic pair widely used in mechanical systems. Generally speaking, ball pairs are widely used in parallel mechanisms, space mechanisms, new hinge mechanisms, etc. Since the ball pair has three degrees of freedom, the number of components and kinematic pairs in the mechanism can be reduced, thereby greatly simplifying the structure of the mechanism. [0003] The three-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16C11/06
CPCF16C11/06
Inventor 肖洪李传扬闫辉垠郭宏伟李兵邓宗全刘荣强
Owner HARBIN INST OF TECH
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