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Hooke hinge mechanism with rolling kinematic pair

A technology of Hooke hinges and kinematic pairs, applied in the direction of mechanical equipment, elastic couplings, couplings, etc., can solve the problems of lack of rolling freedom, low positioning accuracy, complex structure, etc., achieve compact structure, improve motion The effect of positioning accuracy and large range of motion

Active Publication Date: 2019-01-18
CHINA ACAD OF AEROSPACE AERODYNAMICS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Conventional Hooke hinges have problems such as complex structure, large size, low positioning accuracy, and lack of rolling degrees of freedom. In order to solve the above problems, the present invention provides a Hooke hinge mechanism with rolling kinematic pairs

Method used

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  • Hooke hinge mechanism with rolling kinematic pair
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Embodiment Construction

[0030] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.

[0031] It should be understood that terms such as "having", "comprising" and "including" as used herein do not entail the presence or addition of one or more other elements or combinations thereof.

[0032] Such as Figure 1 to Figure 2 As shown, the present invention provides a Hooke hinge mechanism with a rolling kinematic pair, comprising:

[0033] First and second rotating rods (1, 11), the first and second rotating rods (1, 11) are rotatably hinged to each other and thereby define a hinge, and said first and second rotating rods ( 1, 11) respectively located on both sides of the hinge,

[0034] The first and second sleeves (18, 8), the first and second sleeves (18, 8) are respectively sleeved on the outer sides of the first and second rotating rods (1, 11), and are con...

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Abstract

The invention discloses a hooke hinge mechanism provided with a rolling motion pair. The hooke hinge mechanism comprises a first rotating rod, a second rotating rod, a first sleeve, a second sleeve, a first fastening component and a second fastening component, wherein the first rotating rod and the second rotating rod are hinged together rotatably and thus define a hinged part, and the first rotating rod and the second rotating rod are located on the two sides of the hinged part correspondingly; the first rotating rod and the second rotating rod are sleeved with and in rotary connection with the first sleeve and the second sleeve correspondingly, the first end of the first sleeve and the first end of the second sleeve are pressed on outer walls of the hinged part correspondingly and are in rotary connection with the outer walls of the hinged part; and the first fastening component and the second fastening component are arranged on the outer sides of the positions where the first and second sleeves and the first and second rotating rods are in rotary connection correspondingly, so that pressing force for pressing the first sleeve and the second sleeve to the hinged part is provided. The hooke hinge mechanism provided with the rolling motion pair has three rotational degrees of freedom, the rotational space is small, the connecting precision is high, the range of motion is wide, and the hooke hinge mechanism provided with the rolling motion pair is especially suitable for a parallel type multi-degree of freedom motion platform with a high requirement for positioning precision.

Description

technical field [0001] The invention belongs to the technical field of mechanical design and manufacture, and relates to a Hooke hinge mechanism with a rolling motion pair. Background technique [0002] The parallel mechanism has the characteristics of high stiffness, high load capacity, high dynamic characteristics, high speed and compact structure, so the parallel structure is widely used in multi-degree-of-freedom motion platforms. The hinge mechanism is the key part of the parallel mechanism, and it is the component connecting the bar and the motion platform. Its function is to provide rotation around a certain motion center and transmit the force required to realize the motion. To achieve this, the hinge should have 3 rotational degrees of freedom and the axis of rotation should pass through the same center point of the hinge in all rotational positions. Spherical hinges meet the above requirements, but high-precision spherical hinges have problems such as complex proc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16D3/26
CPCF16D3/26
Inventor 董金刚李广良魏忠武何敬玉胡浩
Owner CHINA ACAD OF AEROSPACE AERODYNAMICS
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