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High-pressure gear pump with rectangular oil inlet

A technology of gear pump and oil inlet, applied in the field of hydraulic machinery, can solve the problems of large suction angle, large radial force of bearing, short service life, etc., and achieve the effect of reducing radial force, prolonging service life and simple production

Inactive Publication Date: 2011-08-03
XUZHOU KEYUAN HYDRAULIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the oil inlet of the high-pressure gear pump is a circular hole, and its suction angle is relatively large, so the radial force on the gear shaft is large, the radial force on the bearing is large, and the service life is short.

Method used

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  • High-pressure gear pump with rectangular oil inlet
  • High-pressure gear pump with rectangular oil inlet
  • High-pressure gear pump with rectangular oil inlet

Examples

Experimental program
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Embodiment Construction

[0013] Such as figure 1 , figure 2 , image 3 Shown: a high-pressure gear pump with a rectangular oil inlet, the gear pump adopts a two-piece structure, that is, the driving gear 5, the driven gear 6, two floating side plates 9 and two W-shaped sealing rings 10 are installed on the The inner cavity of the pump body 4, the pump body 4 and the pump cover 3 are connected by bolts 7 and positioning pins to form a single or double or multi-connected gear pump; the gear shafts of the driving gear 5 and the driven gear 6 are respectively sliding The bearing 8 is installed on the pump body 4 and the pump cover 3; the driving gear 5 is connected to the power source through the coupling shaft 1, and the coupling shaft 1 is installed on the pump cover 3 through the bearing 2; there is an oil inlet 11 on the pump body 4 And the oil outlet 12; it is characterized in that: the oil inlet 11 and the oil outlet 12 are rectangular long holes.

[0014] The lengths of the rectangular long hol...

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Abstract

The invention provides a high-pressure gear pump with a rectangular oil inlet and relates to hydraulic machinery. The oil inlet is a rectangular slot hole; the length of the slot hole is equal to or slightly smaller than that of a tooth; and under the condition of guaranteeing that the flow speed of the oil inlet is not changed, the width of the oil inlet is reduced to the maximum extent, an inhalation angle phi' is reduced, the axial stress of a gear is reduced, the service life of a bearing is prolonged, the no-failure operation time of the high-pressure gear pump is increased, maintenance cost is reduced, and economic benefit is increased. The high-pressure gear pump is easy and convenient to manufacture and is favorable for popularization and using.

Description

technical field [0001] The invention relates to a hydraulic machine, in particular to a high-pressure gear pump with a rectangular oil inlet. Background technique [0002] The high-pressure gear pump required for construction machinery, hoisting and transportation machinery, etc. requires a rated pressure of 23MPa, and the actual operating pressure exceeds 25MPa. At present, the oil inlet of the high-pressure gear pump is a circular hole, and its suction angle is relatively large, so the radial force on the gear shaft is large, the radial force on the bearing is large, and the service life is short. Contents of the invention [0003] In order to solve the above technical problems, the present invention provides a high-pressure gear pump with a rectangular oil inlet, the oil inlet is made into a rectangular long hole, and the length of the long hole is equal to the length of the teeth. [0004] The present invention is achieved through the following technical solutions: a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C2/18
Inventor 韩永进徐云涛袁世维郁静师涛
Owner XUZHOU KEYUAN HYDRAULIC
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