Swash plate for swash plate compressor, method for manufacturing same, and swash plate compressor

Abstract

A resin coating-provided swash plate, for a swash plate compressor, manufactured by a process shorter than a process of a conventional coating method and which allows the resin coating to be subjected to grinding processing with high accuracy and to have a high strength of adhesion to a base material of the swash plate, a method for manufacturing the swash plate, and the swash plate compressor having the swash plate. A swash plate ( 3 ) for a swash plate compressor is so constructed that inside a housing where a refrigerant is present, a rotational motion of the swash plate ( 3 ) mounted perpendicularly and obliquely on a rotational shaft by directly fixing the swash plate ( 3 ) thereto or indirectly fixing the swash plate thereto through a coupling member to the rotational shaft is converted into a reciprocating motion of a piston.

1 . A swash plate for a swash plate compressor so constructed that inside a housing where a refrigerant is present, a rotational motion of said swash plate mounted perpendicularly and obliquely on a rotational shaft by directly fixing said swash plate thereto or indirectly fixing the swash plate thereto through a coupling member to said rotational shaft is converted into a reciprocating motion of a piston through a shoe which slides on said swash plate to compress and expand said refrigerant,
 wherein a resin coating is formed on a sliding contact surface of said swash plate on which said shoe slides; and   said resin coating has a layered structure in which a plurality of layers lie one upon another in a direction parallel with said sliding contact surface in an axial cross section thereof.   
     
     
         2 . A swash plate for a swash plate compressor according to  claim 1 , wherein said resin coating is formed by linearly applying resin paint discharged from a discharge port to a base material of said swash plate. 
     
     
         3 . A swash plate for a swash plate compressor according to  claim 2 , wherein said resin coating is formed by applying said resin paint to said base material of said swash plate concentrically and circumferentially or spirally relative to a central axis of said swash plate. 
     
     
         4 . A swash plate for a swash plate compressor according to  claim 2 , wherein said resin paint is droplet-like. 
     
     
         5 . A swash plate for a swash plate compressor according to  claim 1 , wherein a part of said base material of said swash plate which is to constitute a ground to be disposed directly under said resin coating is subjected to shot blast treatment. 
     
     
         6 . A swash plate for a swash plate compressor according to  claim 5 , wherein said base material of said swash plate consists of a rolled steel plate disk-shaped by subjecting said steel plate to pressing processing; and both surfaces of said disk-shaped steel plate are subjected to lathe turning processing and thereafter said shot blast treatment. 
     
     
         7 . A swash plate for a swash plate compressor according to  claim 1 , wherein a surface of said resin coating is subjected to grinding processing by using a double head grinding machine. 
     
     
         8 . A swash plate for a swash plate compressor according to  claim 1 , wherein said resin coating contains matrix resin and at least fluororesin and graphite. 
     
     
         9 . A method for manufacturing a swash plate for a swash plate compressor so constructed that inside a housing where a refrigerant is present, a rotational motion of a swash plate mounted perpendicularly and obliquely on a rotational shaft by directly fixing said swash plate thereto or indirectly fixing the swash plate thereto through a coupling member to said rotational shaft is converted into a reciprocating motion of a piston through a shoe which slides on said swash plate to compress and expand said refrigerant,
 said method has a coating-forming process for forming a resin coating on a sliding contact surface of said swash plate on which said shoe slides; and   in said coating-forming process, said resin coating is formed by linearly applying resin paint discharged from a discharge port to a base material of said swash plate.   
     
     
         10 . A method for manufacturing a swash plate for a swash plate compressor according to  claim 9 , wherein before said coating-forming process is performed, as a process for treating said base material of said swash plate, both surfaces of said base material consisting of a rolled steel plate disk-shaped by subjecting said rolled steel plate to pressing processing is subjected to lathe turning processing and thereafter a part of said base material of said swash plate which is to constitute a ground to be disposed directly under said resin coating is subjected to shot blast treatment. 
     
     
         11 . A swash plate compressor having a swash plate so constructed that inside a housing where a refrigerant is present, a rotational motion of a swash plate mounted perpendicularly and obliquely on a rotational shaft by directly fixing said swash plate thereto or indirectly fixing the swash plate thereto through a coupling member to said rotational shaft is converted into a reciprocating motion of a piston through a shoe which slides on said swash plate to compress and expand said refrigerant, wherein said swash plate is as claimed in  claim 1 .