A conductive slip ring structure with self-adjusting brush pressure

Abstract

The invention relates to the technical field of electrical equipment, and discloses a conductive slip ring structure with self-adjusting brush pressure, which includes a fixed sleeve, an outer ring and an inner ring. The brush is electrically connected to the outer ring. The brush pressure self-adjusting conductive slip ring structure, after installation and fixing, the pressure between the outer ring and the brush can be adjusted by rotating the threaded sleeve, breaking through the limitations of the cantilever length and the installation reference surface, making the same type of slip ring applicable Designed for a variety of electrical products, it has high versatility, is convenient for product design changes, and improves the efficiency of product development and finalization. At the same time, the brush pressure can still be measured and adjusted after the slip ring is installed, which also reduces the installation accuracy. Second, under the action of the mainspring, the pressure change between the outer ring and the brush is always kept within a small range, ensuring that the contact pressure is maintained in the most appropriate range and meeting higher precision requirements.

Description

technical field [0001] The invention relates to the technical field of electrical equipment, in particular to a conductive slip ring structure with self-adjusting brush pressure. Background technique [0002] With the advancement of technology, various automation and intelligent equipment continue to appear, and the movement of equipment is developing in the direction of more degrees of freedom. Rotational movement is a common form of mechanical movement. Continuous rotational movement usually uses slip rings to connect signals and To transmit energy, the slip ring includes a rotating part that moves with the rotating body and a stationary part that is connected to the fixed structure of the equipment. The rotating part and the stationary part are in sliding contact through brushes. [0003] Slip rings are components of sliding electrical contacts. The contact pressure of brushes and rings directly affects the life and contact reliability of slip rings. Different application...

AI Technical Summary

Problems solved by technology

[0003] Slip rings are components of sliding electrical contacts. The contact pressure of brushes and rings directly affects the life and contact reliability of slip rings. Different application scenarios have different requirements for the reliability and life of slip rings. The brush pressure needs to be precisely designed according to different scenarios. There are mainly the following factors that affect the contact pressure between the brush and the ring: brush material: elastic modulus, cantilever length, brush deformation, brush wire diameter, by changing the Any variable can change the slip ring brush pressure, usually changing the length of the slip ring brush cantilever or adjusting the installation reference plane of the cantilever. The design of various slip rings is not universal, and the change of product size will lead to the need to redesign the matching slip ring , resulting in a long cycle of final product development, design and finalization

[0004] On the other hand, the brush will gradually wear and become shorter during the sliding contact process, and a spring is usually installed to compensate for the pressure loss caused by the shortening of the brush, so that the pressure between the brush and the ring is maintained at an appropriate level. However, during the adjustment process, the elastic force of the spring will gradually decrease, and its pressure adjustment ability is limited, which makes it difficult to meet the requirements for high pressure between slip rings.

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