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Double-tooth-difference cycloidal gear pump

A cycloid gear and gear pump technology, applied in the direction of pumps, lubricating pumps, pump components, etc., can solve the problems of lack of mature technology, and achieve the effect of light weight, good reliability and large flow

Inactive Publication Date: 2015-04-29
HARBIN DONGAN ENGINE GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the existing products, the required indicators cannot be achieved, and there are no mature technologies for reference in various documents.

Method used

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  • Double-tooth-difference cycloidal gear pump
  • Double-tooth-difference cycloidal gear pump
  • Double-tooth-difference cycloidal gear pump

Examples

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Embodiment Construction

[0009] As shown in the figure, the two-tooth difference cycloidal gear pump includes a pump base 1, a pump cover 2, a pump shaft 3, an inner rotor 5, and an outer rotor 6. The pump base 1 and the pump cover 2 are connected and combined to form a sealed casing. There are an inner rotor 5 and an outer rotor 6. The inner rotor 5 is installed on the pump shaft 3 and can rotate with the pump shaft 3. The pump shaft 3 extends to the outside of the pump cover 2 and is connected with the power input shaft. The outer circumference of the inner rotor 5 is arranged There are cycloidal outer teeth, and the outer rotor 6 is provided with cycloidal inner teeth that mesh with the outer circumference of the inner rotor 5 with cycloidal outer teeth. Next, it rotates along the inner wall inside the pump base 1. The inner rotor 5 has at least five teeth, and the outer rotor 6 has two more teeth than the inner rotor 5. There is a crescent plate 12, said crescent plate 12 forms a closed oil cavity...

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Abstract

The invention relates to a double-tooth-difference cycloidal gear pump. The double-tooth-difference cycloidal gear pump comprises a pump base, a pump cover, a pump shaft, an internal rotor and an external rotor. The pump base and the pump cover are connected and combined into a sealed housing; the internal rotor and the external rotor are arranged inside the housing; the number of teeth of the internal rotor is at least 5, and the external rotor has two more teeth than the internal rotor; the internal side surface of the pump base is provided with a crescent plate; the pump cover is provided with an oil suction inlet and an oil pumping inlet. The double-tooth-difference cycloidal gear pump is an improvement on the basis of a one-tooth-difference cycloidal gear pump, achieves self-lubrication and meanwhile has the advantages of being small in size, light in weight, large in flow and high in reliability.

Description

technical field [0001] The invention relates to a gear pump, in particular to a cycloidal gear pump with two-tooth difference. Background technique [0002] Because of its compact structure and high efficiency, the cycloidal rotor gear pump is widely used in the oil pump of automobiles or other civil fluid delivery industries. In some industrial fields that require a large flow rate of fluid delivery, the one-tooth differential cycloid pump has been widely used. The conventional method is to increase the size of the pump body and the meshing gears, and multiple stages can be set, which will also increase the volume and weight of the product. In fields such as aviation, products are sometimes required to be light in weight, small in size, and have a large flow rate of fluid delivery. In the existing products, the required indicators cannot be achieved, and there are no mature technologies for reference in various documents. Contents of the invention [0003] The object o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16N13/20F04C2/10F04C15/00
Inventor 郑传锋倪宏伟单建平胡双雪李彧苍学伟陈航石晓春李超孙天宇
Owner HARBIN DONGAN ENGINE GRP
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