Air valve structure of hydraulic drive piston compressor

Abstract

The invention provides an air valve structure of a hydraulic drive piston compressor, and belongs to the technical field of compressors, the air valve structure comprises a lift limiter, a valve plate, a snap spring and a spring, the upper part of the valve plate is provided with a through hole, the lift limiter penetrates through the upper part of the valve plate through the through hole, the spring is arranged below the lift limiter, the spring sleeves the outer end of the valve plate, and the snap spring is arranged in the through hole. The valve plate is provided with a through hole, the lift limiter is used for compressing the spring downwards, a clamp spring groove is formed above the through hole of the valve plate, the clamp spring is arranged in the clamp spring groove, and the clamp spring is used for limiting the relative position of the valve plate and the lift limiter, so that the pre-compression amount of the spring is controlled. By changing the structures of the air valve and the lift limiter, the pressure loss of air flowing through the air valve is reduced, the volumetric efficiency of the hydraulic-drive piston compressor is increased, meanwhile, due to the split type design, replacement of quick-wear parts such as the valve plate and the spring is more convenient, the working performance of the hydraulic-drive piston compressor is improved, and the maintenance cost is reduced.

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