Title:
PUMP BODY AND COMPRESSOR
Document Type and Number:
WIPO Patent Application WO/2023/045270
Kind Code:
A1
Abstract:
A pump body (100) and a compressor, the pump body (100) comprising a crankshaft (1) and a first bearing (2). The crankshaft (1) is provided with an eccentric portion (12), the first bearing (2) is provided with a shaft hole (20), and the crankshaft (1) is assembled in the shaft hole (20). A side of the first bearing (2) facing the eccentric portion (12) is provided with a first thrust portion (22), and a side of the crankshaft (1) facing the first bearing (2) is provided with a second thrust portion (121). The first thrust portion (22) comprises a first hardened region (23), a hardness value of the first hardened region (23) being greater than hardness values of other regions on the first bearing (2), the second thrust portion (121) comprises a second hardened region (122), a hardness value of the second hardened region (122) being greater than hardness values of other locations on the crankshaft (1), and the first hardened region (23) and the second hardened region (122) abut each other. Wear resistance of the eccentric portion (12) and the first bearing (2) is improved, and both the eccentric portion (12) and the first bearing (2) do not wear easily, thereby ensuring wear resistance of the pump body (100) and the compressor, improving the structure and operating reliability.
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Inventors:
WEI QIQING (CN)
GAO QIANG (CN)
GAO BIN (CN)
ZHONG ZHIFENG (CN)
GAO QIANG (CN)
GAO BIN (CN)
ZHONG ZHIFENG (CN)
Application Number:
PCT/CN2022/079952
Publication Date:
March 30, 2023
Filing Date:
March 09, 2022
Export Citation:
Assignee:
GUANGDONG MEIZHI PREC MFG CO (CN)
GUANGDONG MEIZHI COMPRESSOR CO LTD (CN)
GUANGDONG MEIZHI COMPRESSOR CO LTD (CN)
International Classes:
F16C17/08; F04C18/356; F04C29/00
Foreign References:
| CN113653645A | 2021-11-16 | |||
| CN215719512U | 2022-02-01 | |||
| CN111810516A | 2020-10-23 | |||
| CN210889326U | 2020-06-30 | |||
| CN202991392U | 2013-06-12 | |||
| CN106286302A | 2017-01-04 | |||
| CN108397392A | 2018-08-14 | |||
| JPH02125980A | 1990-05-14 | |||
| JPS53163704U | 1978-12-21 |
Attorney, Agent or Firm:
SHENZHEN ZHONGYI UNION INTELLECTUAL PROPERTY AGENCY CO.,LTD. (CN)
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