Spin-orbit type reciprocating piston compressor

Abstract

The invention relates to a spin-orbit type reciprocating piston compressor, belonging to the technical field of compressors. According to the spin-orbit type reciprocating piston compressor, a conical thrust pin or a rolling body is in contact and matched with a spin-orbit surface of a rotor, and therefore a speed difference at the contact part between the conical thrust pin or rolling body and the spin-orbit surface of the rotor can be reduced or even eliminated, and a slippage phenomenon between the thrust pin or rolling body and the spin-orbit surface of the rotor can be eased, thus reduction of part abrasion and frictional noise caused by slippage can be facilitated; because a cooling fan is used for directly cooling a cylinder cover of the compressor, whole unit temperature of the compressor can be reduced, temperature rise of lubricating oil is further reduced and lubricating performance of the lubricating oil is increased, and therefore reduction abrasion and frictional noise is facilitated as well; and because a release link mechanism is adopted and an interval eliminating spring is arranged on the release link at the same time, the release link can be well close to a sliding block under the action of the interval eliminating spring, and the sliding block enables the thrust pin or rolling body or the spin-orbit surface of the rotor to be well contact and matched, and therefore various intervals among parts are effectively eliminated, and reduction of impact noise and impact abrasion of parts can be facilitated.

Description

technical field [0001] The invention belongs to the technical field of compressors, and in particular relates to a reciprocating piston compressor, and more specifically relates to a compressor which utilizes a rotary rail to generate reciprocating motion of a piston. Background technique [0002] Chinese patent application CN101644246 discloses a reciprocating piston compressor with a rotary rail structure, which includes a rotor, a sliding seat, several sliders and several thrust pins, the rotor is provided with a rotary rail, and the There are several sliding rails parallel to the axis of the rotor on the sliding seat. The sliding block slides or rolls with the sliding rail. One end of the thrust pin is connected with the sliding block and moves along the sliding rail together with it. The thrust pin The other end directly or through the bearing is matched with the rotary rail and is driven by the rotary rail to relatively move along the working surface of the rotary rail...

AI Technical Summary

Problems solved by technology

However, it has been found through practice that the above-mentioned rotary-rail reciprocating piston compressor still has deficiencies, mainly manifested in relatively high operating noise and fast wear and tear of parts. Because its thrust pin or the bearing set on the thrust pin adopts the method that the cylindrical surface contacts and fits with the swirl surface of the swivel rail, as a result, the thrust pin or the bearing set on the thrust pin will be damaged due to the radius difference along the swirl surface. There is a speed difference between the outer surface and the orbital surface, that is, the outer end of the orbital surface has a larger contact rolling speed, while the inner end of the orbital surface has a smaller contact rolling speed due to the small radius, which inevitably makes The outer surface of the thrust pin or the bearing sleeved on the thrust pin and the surface of the rotary rail slip, which not only produces friction noise but also aggravates the wear of the parts at the fitting; 2) The compression heat generated by the compressor accumulates at the cylinder head , due to poor heat dissipation, the overall temperature of the compressor is very high, and as a result, it is transmitted to the lubricating oil and makes it work in a very high temperature area, which eventually leads to a decrease in lubrication performance, resulting in poor lubrication of the moving pairs of the compressor However, premature wear occurs and causes the gap to become larger, resulting in greater operating noise; 3) the compressor proposed in document CN101644246 cannot adaptively eliminate the noise caused by various reasons when it is used for the resetting of the connecting rod and piston. The gap between the reset mechanism and the slider, the thrust pin or the outer surface of the bearing set on the thrust pin and the orbital surface of the rotary rail, especially between the above-mentioned parts after the compressor has been working for a period of time, will inevitably appear. The wear gap is obtained, and as a result, a large mechanical impact noise is generated due to the appearance of the gap, and premature wear of the parts is caused

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