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A low-friction and gap-free spherical joint pair and its assembly method and application

A no-gap, low-friction technology, applied in the direction of shafts and bearings, pivots, pivot connections, etc., can solve problems such as transmission system failure, transmission mechanism damage, and metal surface wear, so as to improve fit accuracy, reduce friction, and reduce friction. Effects of Friction and Wear

Active Publication Date: 2020-05-12
BEIJING RES INST OF PRECISE MECHATRONICS CONTROLS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional closed-end spherical pair structure is often the cooperation between metal and metal. If the gap is too small, great friction will often occur
In addition, the spherical pair works for a long time, which may cause wear on the metal surface. In severe cases, it may be stuck, causing the transmission system to fail, especially in high-power electromechanical or hydraulic systems, which may cause damage to the transmission mechanism.

Method used

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  • A low-friction and gap-free spherical joint pair and its assembly method and application
  • A low-friction and gap-free spherical joint pair and its assembly method and application
  • A low-friction and gap-free spherical joint pair and its assembly method and application

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Embodiment

[0038] Such as Figure 1-4 As shown, a spherical joint pair with low friction and no clearance, the spherical joint pair includes a spherical connecting rod 1, a wear-reducing sleeve 2, a support seat 3 and a set screw 4;

[0039] The spherical connecting rod 1 includes an intermediate connecting rod and ball ends located at both ends of the intermediate connecting rod, that is, one end of the intermediate connecting rod is connected with a ball end, and the other end of the intermediate connecting rod is connected with a ball end;

[0040] The wear reducing sleeve 2 is a cylinder with a hemispherical groove 7, and the hemispherical groove 7 is located on the side of the cylinder;

[0041] The support base 3 includes a cylinder with intersecting holes and a flange, and the cylinder with the intersecting holes is fixedly mounted on the end face of the flange. The intersecting holes include a hemispherical hole 6 and a cylindrical hole 5. The hemispherical hole 6 of the cylinde...

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Abstract

The invention relates to a spherical joint pair with low friction and no gap, an assembly method and application thereof, and belongs to the technical field of multi-degree of freedom mechanism and micro-transmission control. The spherical joint pair is a very effective transmission mode to realize multi-degree of freedom motion in a single joint. The manufacturing technology and cooperation of the spherical joint pair directly affect the transmission accuracy and efficiency of a joint. By using the close cooperation between a non-metallic material-polytetrafluoroethylene and a metal ball headconnecting rod, the ball joint transmission with low friction, no gap and high reliability is realized.

Description

technical field [0001] The invention relates to a low-friction and gap-free spherical joint pair and its assembly method and application, belonging to the technical field of multi-degree-of-freedom mechanisms and micro-transmission control. The spherical joint pair is a very The effective transmission mode, the manufacturing process and coordination of the spherical sub-joint will directly affect the transmission accuracy and efficiency of the joint. By using the non-metallic material - Teflon and the metal ball joint rod, the tight fit can be used to achieve low friction, Backlash-free, high-reliability ball joint transmission. Background technique [0002] In the field of multi-degree-of-freedom mechanism and micro-transmission control, the spherical pair is a very effective transmission method to realize multi-degree-of-freedom motion in a single joint. However, the spherical pair is different from the single-degree-of-freedom transmission mechanism with a shaft-hole fit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16C11/06
CPCF16C11/0685F16C11/0695
Inventor 曾广商吕博瀚刘山赵新颖胡晓斌
Owner BEIJING RES INST OF PRECISE MECHATRONICS CONTROLS
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