Title:
ポンプボディアセンブリ、圧縮機及びエアコン
Document Type and Number:
Japanese Patent JP7105387
Kind Code:
B2
Abstract:
A pump body assembly (1), a compressor, and an air conditioner. The pump body assembly (1) comprises: a crankshaft (10), wherein the crankshaft (10) comprises a main shaft portion (102) and an eccentric portion (104) connected with the main shaft portion, and a distance between the center line of the main shaft portion (102) and that of the eccentric portion (104) is e; a main bearing (12), comprising a hub portion (122), wherein the main shaft portion (102) penetrates through a though hole (130) of the hub portion (122), and the hole wall of the through hole is provided with a first oil guide groove (120); and a cylinder body (142), wherein a sliding blade groove (144) and a center hole (146) are provided on the cylinder body, the crankshaft (10) penetrates though the center hole (146), the main bearing (12) is located at the two sides of the cylinder body (142), the radius of the center hole (146) is R, and a difference value between R and e is r. The value range of an included angle formed of a first connection line (126) between the center of the center hole (146) and that of the sliding blade groove (144) that is provided on the same projection surface as the center hole and a second connection line (128) between the termination point of the first oil guide groove (120) at one end of the hub portion (122) distant from the eccentric portion (104) and the center of the through hole (130) is formula (I). The crankshaft (10) and the main bearing (12) are in more uniform contact with oil films at all positions, thereby effectively solving the problem of the abnormal abrasion of the main shaft portion (102) of the crankshaft (10), and prolonging the service life of the compressor.
Inventors:
Chung Reisei
Lee Jin
Lee Jin
Application Number:
JP2021569979A
Publication Date:
July 22, 2022
Filing Date:
September 30, 2019
Export Citation:
Assignee:
ANHUI MEIZHI PRECISION MANUFACTURING CO., LTD.
International Classes:
F04C29/02
Domestic Patent References:
| JP2017053221A | ||||
| JP2000130371A | ||||
| JP2020037887A |
Foreign References:
| WO2018179356A1 | ||||
| CN105090042A | ||||
| CN105221430A | ||||
| CN108661908A | ||||
| CN103696966A | ||||
| CN105715550A | ||||
| CN106640661A |
Attorney, Agent or Firm:
Hideki Miyata
Hiroaki Sakai
Hiroaki Sakai