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Gear oil pump with low noise

A gear oil pump, low-noise technology, applied to pumps, pump components, rotary piston pumps, etc., can solve problems affecting the normal lubrication of motor vehicle running parts, gear oil pump flow and pressure pulsation, and affect the service life of running parts, etc., to achieve Improve transmission and working efficiency, good mesh sealing, convenient and simple maintenance

Inactive Publication Date: 2010-02-24
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the meshing gears in the gear oil pump have sliding friction between the meshing surfaces like the transmission meshing gears, and there is an impact load during operation, so there is inevitably a large noise. At the same time, due to the existence of the above problems, This will lead to large pulsation in the flow and pressure of the gear oil pump, which will affect the normal lubrication of the moving parts of the motor vehicle, thereby affecting the service life of each moving part

Method used

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  • Gear oil pump with low noise

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Embodiment Construction

[0016] The accompanying drawing is a schematic structural diagram of the present invention, as shown in the figure: the low-noise gear oil pump of this embodiment includes a pump cylinder 3 and two gears 1 that are engaged with each other in the pump cylinder 3, and the tooth surfaces of the two gears 1 are Secure the cover elastic2.

[0017] In this embodiment, the material of the elastic layer 2 is filled polytetrafluoroethylene; it has good oil resistance, wear resistance, and self-lubricating performance, and is suitable for a motor vehicle lubricating oil pump.

[0018] In this embodiment, metal powder is added to the filled polytetrafluoroethylene to further increase the wear resistance and improve the service life of the oil pump.

[0019] Of course, the material of the elastic layer 2 is a resin-based elastic oil-resistant and wear-resistant material; it has high strength and improves the ability of the elastic layer to resist impact loads, which can also achieve the p...

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Abstract

The invention discloses a gear oil pump with low noise, comprising a pump cylinder and two gears which are arranged in the pump cylinder and are meshed with each other, and the tooth surfaces of the two gears are fixedly covered by an elastic layer. The tooth surface of the invention is covered by the elastic layer, thus effectively buffering the meshing impact of the gear meshing pair, being capable of reducing the noise generated by meshing in operation with good meshing leak tightness, ensuring stable pump discharge pressure and flow, and improving transmission and working efficiency; meanwhile, the gear elastic layer can be replaced after abrasion, the maintenance is convenient and simple and the use cost is saved.

Description

technical field [0001] The invention relates to a gear pump, in particular to a low-noise gear oil pump. Background technique [0002] The gear pump is a rotary pump that relies on the change and movement of the working volume formed between the pump cylinder and the meshing gear to deliver or pressurize the liquid. It includes a pair of gears and a pump cylinder that mesh with each other. The pump cylinder is divided into a suction chamber and a discharge chamber by the gear mesh pair; the gear pump is suitable for conveying lubricating liquids with a large viscosity range. The structure is simple and compact, easy to manufacture and easy to maintain. It has self-priming ability. Therefore motor vehicle lubricating oil generally adopts gear oil pump to supply oil and lubricates. [0003] In the prior art, the meshing gears in the gear oil pump have sliding friction between the meshing surfaces like the transmission meshing gears, and there is an impact load during operati...

Claims

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Application Information

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IPC IPC(8): F04C2/18F04C15/00
Inventor 唐倩徐俊王晓琴张元勋
Owner CHONGQING UNIV