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Axial bearing structure for closed compressor

An axial bearing and compressor technology, used in liquid variable capacity machinery, mechanical equipment, machines/engines, etc., can solve the problem of high leakage of axial bearing oil, reduce the amount of lubricating oil, and increase the mechanical loss of axial rolling bearings, etc. question

Inactive Publication Date: 2004-11-24
WHIRPOOL SA
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0014] Another disadvantage of the embodiment described in Figure 3 is the high oil leakage of the entire axial bearing, thereby increasing the mechanical losses of the axial rolling bearing due to friction and reducing the crankshaft and compressor parts on the axial rolling bearing. Lubricating oil quantity

Method used

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  • Axial bearing structure for closed compressor
  • Axial bearing structure for closed compressor
  • Axial bearing structure for closed compressor

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Embodiment Construction

[0034] Description of the preferred embodiment

[0035] Figure 1 depicts in a simplified manner a reciprocating hermetic compressor comprising a housing 10 in which is suspended a cylinder block 20 defining a cylinder 30 and provided with a vertical radial bearing hub 40 carrying a vertical crankshaft 50 which The lower end of the shaft 50 protrudes downwards under the radial bearing hub 40 and is connected with the rotor 61 of the motor 60 , whose stator 62 is connected under the cylinder block 20 . The crankshaft 50 further includes an upper end protruding above the radial bearing hub 40, and has a circumferential flange 51, an axial bearing annulus 51a is formed on its lower surface, and an eccentric shaft installed in the large hole of the connecting rod 70. A piston 80 reciprocating in the cylinder 30 is installed in a similar hole of the connecting rod 52 .

[0036] In the prior art of this structure, the axial bearing annular surface 51a is supported by the upper annul...

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Abstract

A reciprocating hermetic compressor includes a cylinder block internal to a shell and carrying a cylinder and a radial bearing hub; a crankshaft vertically mounted in the radial bearing hub and carrying, inferiorly, a rotor of an electric motor and, superiorly, a support annular face and an eccentric portion. The radial bearing hub incorporates an upper tubular extension, bearing a corresponding extension of the crankshaft and around which is mounted an axial rolling bearing for supporting the weight of the crankshaft-rotor assembly, as well as the axial stresses produced during compression of the refrigerant gas.

Description

technical field [0001] The invention relates to an axial rolling bearing arrangement of a reciprocating hermetic compressor with a vertical axis, which is applied in a small refrigeration system. Background technique [0002] The existing hermetic refrigeration compressor is installed in the airtight shell, and the cylinder body supports a vertical crank, and the motor rotor is installed. The weight of the crankshaft-rotor arrangement is usually supported by axial bearings which are flat axial plain bearings. [0003] The above-mentioned crankshaft carries a pump rotor at its lower end, which guides the lubricating oil in the lower reservoir in the casing to the relative moving parts during the operation of the compressor, so as to ensure sufficient oil supply during the operation of the above-mentioned parts. [0004] The location of the axial bearings can vary depending on the arrangement of the compressor components and design variations. The above solution takes into a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B39/00F04B39/02
CPCF04B39/0094F04B39/00
Inventor 安迪尔松·L·曼克迪特马尔·E·B·利列
Owner WHIRPOOL SA
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