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A stable working micro gear pump gear set and gear processing method

A processing method and gear pump technology, applied to belts/chains/gears, rotary piston type/oscillating piston type pump components, gear teeth, etc., can solve problems such as insufficient gear processing accuracy and unreasonable gear set design, etc., to achieve It has the effect of self-priming ability, reducing trapped oil phenomenon and reducing noise

Active Publication Date: 2018-01-30
SANMING SUOFU PUMP IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a gear set and a gear processing method of a micro gear pump with stable operation, and its purpose is to solve the problems of unreasonable design of the gear set and insufficient precision of gear machining in the existing micro gear pump

Method used

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  • A stable working micro gear pump gear set and gear processing method

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specific Embodiment approach

[0024] A stable micro gear pump gear set, including two gears meshing with each other, the two gears are the driving gear 1 and the driven gear 2, both gears are involute spur gears and the parameters of the two gears are the same , the number of teeth of each gear is 10, the modulus is 1, the pressure angle is 27°, the diameter of the addendum circle is 12.7mm, the diameter of the index circle is 10mm, the diameter of the dedendum circle is 8.37mm, the gear root slip coefficient are less than 2. The gears are made of PEEK material, and each gear is fixed with a ceramic shaft 3 .

[0025] A processing method for the gears in the above gear set, the steps are:

[0026] 1) Make a fixture for fixing the standard mold. The inner surface of the fixture matches the outer surface of the standard mold, and the upper surface of the fixture is a horizontal plane.

[0027] 2) First, use a heater to heat the outside of the tooling fixture at 80°C for more than 30 minutes to expand the t...

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Abstract

The invention discloses a gear set of a miniature gear pump working stably. The gear set comprises two engaged gears. The two gears are the driving gear and the driven gear respectively. The gear set is characterized in that the two gears are involute straight gears; parameters of the two gears are the same; the tooth number of each gear is 10, the modulus of each gear is 1, the pressure angle of each gear is 27 degrees, the tip diameter of each gear is 12.7 mm, the reference diameter of each gear is 10 mm, and the root diameter of each gear is 8.37 mm. The invention further discloses a machining method of the gears. The gear set of the miniature gear pump is improved, the machining method of the gears in the gear set is improved, the gear pump works stably, oil leakage and oil trapping phenomena are reduced, and the operating life is prolonged.

Description

technical field [0001] The invention relates to a gear set for a micro gear pump, in particular to a stable working micro gear pump gear set and a gear processing method. Background technique [0002] Gear pumps are called positive displacement devices, which are widely used in industrial and agricultural production. The micro gear pump is a smaller and more precise type of gear pump. A micro gear pump consists of a set of intermeshing driving and driven gears. The driving gear and the driven gear are generally the same gear, and the structure, number of teeth, modulus and other parameters of the two directly affect the working effect and service life of the gear pump. In the existing micro gear pump, due to the unreasonable design of the gears and the lack of gear precision, the meshing degree is not good, the vibration is large, the noise is large, and even the phenomenon of oil trapping and leakage occurs; moreover, it is not suitable for Low-viscosity media (such as w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H55/17F16H55/10F16H55/06F16H55/08F04C15/00B23P15/14
CPCB23F1/065B23P15/14F04C15/0061F16H55/06F16H55/10F16H55/17
Inventor 林强兴黄杰
Owner SANMING SUOFU PUMP IND CO LTD
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