A double internal thread air bag balance gear pump

A technology for balancing gears and internal threads, which is applied to pumps, pump components, rotary piston pumps, etc., can solve the problems of force and asymmetry in gear pumps that have not been seen, and achieve completely symmetrical and uniform wear and novel ideas.

Inactive Publication Date: 2016-04-06
ANHUI NANFANG CHEM PUMP IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

my country patent authorization announcement number: CN1059019C swing vane pump; my country patent authorization announcement number: CN100374725C rotary vane pump; The internal gear pump of plastic casing; my country's patent authorization announcement number: CN101120175B and my country's patent authorization announcement number: CN101403382B a kind of gear pump for micro-miniature turbojet engine, etc., all do not see that there is a practical method to solve the stress of the gear pump. Symmetry and face wear clearance control issues

Method used

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  • A double internal thread air bag balance gear pump
  • A double internal thread air bag balance gear pump
  • A double internal thread air bag balance gear pump

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Embodiment Construction

[0021] In conjunction with the accompanying drawings and embodiments, the structure and working principle of the present invention are further described in detail:

[0022] exist figure 1 , figure 2 , image 3 , Figure 4 and Figure 5 Among them, a double internal thread air bag balanced gear pump, the three-axis oil pump is externally connected with a right inlet pipeline 47, a left inlet pipeline 48, a right outlet pipeline 49 and a left oil outlet pipeline 46, as an improvement: the right inlet pipeline The road 47 and the left inlet pipeline 48 are collected into the oil inlet main pipe 74 with the internal thread 77 of the pipe inlet; the right outlet pipeline 49 and the left oil outlet pipeline 46 are collected into the oil outlet main pipe 64 with the internal thread 66 of the pipe outlet Middle; the three-axis oil pump includes a drive shaft 11, a right driven shaft 12, a left driven shaft 13, a master gear 21, a right slave gear 22, a left slave gear 23, a front...

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Abstract

The invention discloses a double internal thread air bag balance gear pump. A right inlet pipeline and a left inlet pipeline are gathered in an oil inlet main pipe with an inlet pipe internal thread, a right outlet pipeline and a second oil outlet pipeline are gathered in an oil outlet main pipe with an outlet pipe internal thread, two sections of arc at the center of a pump inner cavity body are in a sliding fit with an excircle of a drive gear, most arc on the right of the pump inner cavity body is in the sliding fit with an excircle of a right driven gear, most arc on the left of the pump inner cavity body is in the sliding fit with an excircle of a left driven gear, a driving shaft at the center of the drive gear is parallel to a right driven shaft at the center of the right driven gear, the driving shaft at the center of the drive gear is parallel to a left driven shaft at the center of the left driven gear, a rear cover inner plane of a rear outer end cover is fixed on the rear end surface of the pump body in a sealing mode, a front cover inner plane of a front outer end over is fixed on the front end surface of the pump body in the sealing mode, a front plane of an end surface compensation disc is simultaneously attached to the drive gear, the right driven gear and the left driven gear, and an air bag middle ring, an air bag right ring and an air bag left ring are respectively arranged between a rear surface of the end surface compensation disc and an inner side plane of the front outer end cover.

Description

technical field [0001] The invention belongs to the field of mechanical engineering, and the international patent classification is F04D non-variable pump, which relates to an energy-converting rotary displacement pump that converts mechanical energy into liquid pressure energy, in particular to a double-thread airbag balanced gear pump. Background technique [0002] The known gear pumps are all working in pairs. Due to the large pressure difference between the inlet and outlet, it is bound to cause unilateral force on the gear, especially the unilateral force on the driving gear, which directly causes unilateral wear and leakage at the shaft of the driving gear. As a result, the life of the gear pump is short and the pressure rise is limited. Another problem that has been plagued by gear pumps that cannot be effectively solved is that after long-term high-speed operation, the inevitable wear of the end face cannot be effectively compensated. my country patent authorization...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04C2/14F04C15/00F04C15/06
Inventor 孙冬兰张意立
Owner ANHUI NANFANG CHEM PUMP IND
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