Combined hinge with double rotation freedom degrees

Abstract

The invention discloses a combined hinge with double rotation freedom degrees, comprising a fixing member and a pair of hinge components with the same structure symmetrically installed at both ends ofthe fixing member by a rotation pair. A tension component is connected between the hinge components; the hinge components comprise a revolving shaft I rotatably connected with the fixing member and arevolving shaft II articulated with the revolving shaft I by a pin shaft in an opening manner, and the pin shaft is vertical to the revolving shaft I; the tension component comprises a tension elastic member the center line of which is parallel to the axial line of the revolving shaft I, and both ends of the tension elastic member are respectively and rotatably connected with the revolving shaftII. The combined hinge is convenient for detaching, has simple process technique, and more easily removes the intervals of the hinge compared with the prior hinge. In addition, the connection manner of the combined hinge can automatically compensate the intervals generated by the abrasion and has the characteristics of long service life.

Description

technical field [0001] The invention relates to a combined hinge, in particular to a combined hinge with two rotational degrees of freedom. Background technique [0002] In the industrial field, hinge connections are usually required between motion mechanisms or connecting rods. Among many connections, a two-rotation freedom hinge that does not consider the degree of freedom of rotation is often used, especially between rods. connecting. [0003] In many modern light industrial fields, actuators with multiple rods are often used. During high-speed motion, the hinge part on the moving rod rotates frequently, so the wear is serious, and the connection accuracy gradually decreases. In severe cases, it needs to be replaced. . Therefore, the connection gap problem of the hinge part and whether the hinge can be replaced conveniently, simply and quickly have become important problems to be solved by automation equipment in industrial production. There is much room for improvemen...

AI Technical Summary

Problems solved by technology

[0004] One of the existing hinges is a closed universal joint hinge, also known as the Hooker hinge. During the movement of the hinge, it cannot automatically compensate for the gap due to wear and tear, and the movement accuracy of the equipment will decrease after long-term use; the second existing The hinge is a ball-pin secondary hinge, which requires high manufacturing technology and is inconvenient to disassemble. Long-term movement and wear will produce gaps, which will reduce the movement accuracy of the equipment; the third hinge is a ball hinge used in pairs. The processing technology of this hinge High requirements, long processing cycle, and high cost

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