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High-pressure gear pump having rectangular oil outlet

A gear pump and oil outlet technology, applied in the field of hydraulic machinery, can solve problems such as affecting the life of the gear pump, and achieve the effects of reducing maintenance costs, increasing trouble-free working time, and improving service life.

Inactive Publication Date: 2013-05-22
XUZHOU KEYUAN HYDRAULIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If this kind of gear pump is used on a dump truck or other equipment with a large load change, due to the large load change, the reaction force of the impact load directly acts on the middle of the gear of the oil pump, forming a huge radial impact force on the gear. Acting on the middle of the gear, driving the gear to bend, seriously affecting the life of the gear pump

Method used

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  • High-pressure gear pump having rectangular oil outlet
  • High-pressure gear pump having rectangular oil outlet
  • High-pressure gear pump having rectangular oil outlet

Examples

Experimental program
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Effect test

Embodiment Construction

[0016] Such as figure 1 , figure 2 , image 3 Shown: a high-pressure gear pump with a rectangular oil outlet, 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; characterized in that: the oil outlet 12 is a rectangular long hole.

[0017] The length of the rectangular long hole of the oil outlet 12 is e...

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Abstract

The invention discloses a high-pressure gear pump having a rectangular oil outlet and relates to hydraulic machinery. The conventional gear pump has the defects that: when the conventional gear pump is applied to a self-dumping truck or other equipment with large load change, a reacting force of an impact load directly acts on the middle part of a gear of an oil pump due to the large load change,and a huge radial impact force is formed on the gear. The oil outlet is a rectangular long hole; the length of the long hole is equal to or slightly shorter than that of the gear; the reacting force of the impact load acts on the total length of the gear; the gear is forced uniformly; bending deformation is reduced; and the service life of the gear pump is prolonged.

Description

technical field [0001] The invention relates to a hydraulic machine, in particular to a high-pressure gear pump with a rectangular oil outlet. 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 outlet of the high-pressure gear pump is a circular hole, and the high-pressure oil from the gear pump is ejected radially. If this kind of gear pump is used on a dump truck or other equipment with a large load change, due to the large load change, the reaction force of the impact load directly acts on the middle of the gear of the oil pump, forming a huge radial impact force on the gear. Acting on the middle of the gear, it drives the gear to bend, seriously affecting the life of the gear pump. Contents of the invention [0003] In order to solve the above technical problems, the present in...

Claims

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Application Information

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Patent Type & Authority Patents(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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