Sliding bearing self-circulation cooling oil lubrication system for meshing gear pump

A sliding bearing and lubrication system technology, which is applied in the direction of bearing cooling, bearing components, shafts and bearings, etc., can solve the problems of sliding bearing failure and damage, limit the service life of sliding bearings in meshing gear pumps, etc., so as to avoid bearing wear failure and improve The effect of service life

Active Publication Date: 2016-04-20
ZHEJIANG UNIV
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to ensure the volumetric efficiency, it is easy to cause the sliding bearing to fail and be damaged due to high temperature during operation, which greatly limits the service life of the sliding bearing in the meshing gear pump

Method used

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  • Sliding bearing self-circulation cooling oil lubrication system for meshing gear pump
  • Sliding bearing self-circulation cooling oil lubrication system for meshing gear pump
  • Sliding bearing self-circulation cooling oil lubrication system for meshing gear pump

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with the implementation examples shown in the accompanying drawings.

[0019] The sliding bearing self-circulating cooling oil lubrication system for the meshing gear pump of the present invention includes a sliding bearing 5 and a bearing seat 2, and there is a sliding bearing oil film between the journal of the meshing gear pump and the sliding bearing 5, and the sliding bearing oil film mainly plays a bearing role. The oil film of the sliding bearing will generate a high and low pressure area at the corresponding position. The pressure in the high pressure area is much higher than the atmospheric pressure, and the pressure in the low pressure area is generally lower than the atmospheric pressure. The low pressure oil chamber 14 of the gear pump communicates with the oil inlet 15 of the gear pump, and the pressure is generally close to the atmospheric pressure. The sliding bearing 5 is provided with a...

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Abstract

The invention discloses a self-circulating cooling oil lubrication system for a sliding bearing for a meshing gear pump. The system is characterized in that an oil guide groove and an oil guide hole are formed in the existing sliding bearing of the meshing gear pump and a bearing block in corresponding positions, and the pressure difference between a high pressure region and a low pressure region in a bearing oil membrane is used as driving force, so that on one hand, the oil liquid next to the high pressure region of the oil membrane is guided into a low-pressure oil chamber next to the oil inlet of the gear pump, and on the other hand, the oil liquid can flow to the low pressure region of the oil membrane of the sliding bearing from the low-pressure oil chamber next to the oil inlet of the gear pump, and therefore, a self-circulating cooling loop is formed; for the relatively closed operating environment of the sliding bearing of the meshing gear pump, the quantity of the bearing cooling lubricating oil is increased without greatly reducing the bearing capacity of the bearing so that the bearing can be protected against damage due to overhigh temperature; meanwhile, as the cooling lubricating oil circuit is a self-circulating oil circuit, the axial and radial gap compensation mechanisms of the existing system cannot be damaged and the original volume efficiency of the meshing gear pump is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of bearings, in particular to a self-circulating cooling oil lubrication system for sliding bearings used in meshing gear pumps. Background technique [0002] Meshing gear pumps are widely used in agricultural machinery, construction machinery, etc. as hydraulic power sources due to their simple structure, reliable performance, and high cost performance. With the gradual development of fluid transmission technology towards high pressure, high speed and low noise, meshing gear pumps have higher and higher requirements for bearings. It is difficult for ordinary rolling bearings to meet the requirements of meshing gear pumps for load, life and reliability. Bearings have gradually been widely used in meshing gear pumps, especially in medium and high pressure meshing gear pumps. [0003] In practical applications, on the one hand, meshing gear pumps, especially medium and high pressure meshing gear pumps, will g...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04C15/00F16C37/00F16C33/02F16C35/02
Inventor 郑水英莫锦涛吴文健顾超华应光耀李梦暄潘晓弘
Owner ZHEJIANG UNIV
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