Swash plate type reciprocating piston compressor

Abstract

The invention relates to a swash plate type reciprocating piston compressor, and belongs to the technical field of compressors. The swash plate type reciprocating piston compressor comprises a drive shaft, a master swash plate, a slave swash plate, cylinders, pistons, connecting rods and the like; sliding blocks and the connecting rods are compelled to be closely attached to steel balls and sliding shoes by using a reset mechanism; the steel balls and the sliding shoes are further compelled to be propped against the slave swash plate; meanwhile, the slave swash plate is compelled to be propped against the master swash plate, so that a gap of a matching pair can be reduced and even eliminated; the swash plate type reciprocating piston still has a continuous positive effect even though parts are abraded, so the mechanical noise of the compressor is reduced; by a layout form of a top cooling fan, cooling air can be directly blown to a cylinder head of the compressor to effectively reduce the temperature of the parts, so that gap change quantity caused by thermal deformation is reduced, and the mechanical noise is indirectly reduced; and a guide rod or guide sleeve structure is used for restraining the connecting rods to do linear motion, and the swinging amplitude of the connecting rod is effectively reduced, so that slapping of the pistons on reversing of the cylinder is reduced, and the mechanical noise of the compressor is further reduced.

Description

technical field [0001] The invention belongs to the technical field of compressors, in particular to a swash plate type reciprocating piston compressor, more specifically to a swash plate type linear reciprocating piston compressor. Background technique [0002] Existing swash plate type reciprocating piston compressors are widely used in the fields of refrigeration and air conditioning and gas compression. It mainly includes components such as drive shaft, driving swash plate, driven swash plate, cylinder, piston and connecting rod. Its working principle is, The prime mover drives the drive shaft to rotate, the drive shaft drives the driving swash plate to rotate, the driving swash plate drives the driven swash plate to produce swing motion, and the reciprocating displacement generated by the driven swash plate in the axial direction is used to drive the connecting rod to move, and then The connecting rod drives the piston to reciprocate in the cylinder, thereby realizing t...

AI Technical Summary

Problems solved by technology

However, the present swash plate type reciprocating piston compressor still has deficiencies, which are mainly manifested in several aspects: 1) firstly, in each kinematic pair of the compressor, especially each kinematic pair of the driven swash plate driving connecting rod In the link, the matching gap cannot be automatically compensated or eliminated automatically. With the wear and tear of the parts, the gap between these matching pairs will become larger and larger, resulting in greater mechanical impact noise; 2) Secondly, In the existing swash plate type reciprocating piston compressors, the cooling fan is often arranged at one end of the drive shaft. Since the cylinder head and the drive shaft are not on the same side, it is difficult for the cooling air to reach the cylinder head, that is, the cooling of the cylinder head cannot be taken into account. , this phenomenon is particularly prominent in gas compressors, which leads to the aggravation of thermal deformation of various parts of the compressor, making the matching clearance value of each kinematic pair easily exceed the requirements, and the result will also cause large mechanical impact noise; 3) Then Or, in a swash plate compressor that uses balls or ball bearings to drive the connecting rod piston, because the connecting rod has a certain swing range relative to the axis of the cylinder, the piston will generate side pressure slaps on the cylinder during operation. , the result will also produce mechanical impact noise

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