Mechanical and electrical integration limiting mechanism and limiting method

Abstract

The invention discloses a mechanical and electrical integration limiting mechanism and a limiting method. The mechanism comprises an integrated frame structure support, a guiding mechanism, a damping spring, a travel switch, a travel switch, a shell cover plate and wire passing through holes, wherein the guiding mechanism is integrally installed in an inner cavity of the integrated frame structure support, the damping spring is arranged on a lower cylinder of the guiding mechanism, the two ends of the damping spring are pressed on a stair-shaped cuboid of the guiding mechanism and the lower surface of the cavity of the integrated frame structure support respectively, the travel switches are fixed in the integrated frame structure support and located under the left front arm and the right front arm of the guiding mechanism respectively, and the travel switches are connected with an external power supply through the travel switch wire passing through holes in the left and the right of lower surface of the cavity of the integrated frame structure support. The mechanism improves the vibration and impact resistance and the anti-noise capacity of products and reduces the reaction force on an execution drive mechanism, meanwhile, the number of parts of the limiting mechanism is reduced, and the complexity of the products is reduced.

Description

technical field [0001] The invention relates to an electromechanical integration limit mechanism for an antenna in motion, and belongs to the field of electromechanical integration control. Background technique [0002] The limit mechanism used in the existing servo control system is mostly realized by a separate mechanism of electronic limit and mechanical limit. [0003] The electronic limit is realized by a single control method, and a proximity switch or a travel switch is generally used. The proximity switch does not need to contact the detection object, and uses the eddy current generated in the metal body of the detection object caused by electromagnetic induction to detect the object. Extended life; not affected by stains, oil, water, etc. of the detection object, only ferromagnetic induction; high-speed response. But its shortcomings are also obvious, mainly because the detection distance has a significant difference depending on the material of the detection obje...

AI Technical Summary

Problems solved by technology

The disadvantage is that it is contact type, which will cause wear and damage, and the mechanical life is limited

[0004] According to the characteristics of the servo control system and the use environment, the servo mechanism often adopts a lightweight design. Therefore, non-magnetic materials such as aluminum alloy and carbon fiber are used in large quantities, which limits the use of proximity switches; It is sometimes ignored in the control system, but due to the single control method, once the servo control system limit has a circuit fault or the travel switch installation error is large, it will lose its function, which will cause the mechanical guide mechanism to directly act on the limit mechanism. Reduced reliability of the servo control system

[0005] The advantages of mechanical limit are simple and reliable, low cost, and can forcibly prevent the one-way operation of the servo control mechanism under abnormal conditions; but its disadvantage is that the guiding mechanism and the limit mechanism adopt single-sided contact, which is a rigid collision when acting. As a result, the consistency of the mechanical limit is poor, and the anti-vibration and shock performance is poor, which is easy to generate noise, and also reduces the performance and reliability of the mechanical limit; it produces a strong reaction force on the actuator drive mechanism, which affects the performance of the drive mechanism. Performance and service life

[0006] The limit mechanism with separate electronic limit and mechanical limit uses double insurance to ensure the normal operation of the servo control system, but its structure is relatively complicated, and the consistency of use and installation is poor, which reduces the reliability of the limit mechanism.

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