CN202521202U - High-speed extensive cycloid internal gearing lubricating oil pump - Google Patents

High-speed extensive cycloid internal gearing lubricating oil pump Download PDF

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Publication number
CN202521202U
CN202521202U CN2011205766095U CN201120576609U CN202521202U CN 202521202 U CN202521202 U CN 202521202U CN 2011205766095 U CN2011205766095 U CN 2011205766095U CN 201120576609 U CN201120576609 U CN 201120576609U CN 202521202 U CN202521202 U CN 202521202U
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CN
China
Prior art keywords
pump
oil
lubricating oil
dump pump
speed
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN2011205766095U
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Chinese (zh)
Inventor
李贵林
宋飞
唐杰
郭永庆
李炎军
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China Gas Turbine Research Institute
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China Gas Turbine Research Institute
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Priority to CN2011205766095U priority Critical patent/CN202521202U/en
Application granted granted Critical
Publication of CN202521202U publication Critical patent/CN202521202U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model belongs to the field of aircraft engine lubricating systems and particularly relates to a high-speed extensive cycloid internal gearing lubricating oil pump. The lubricating oil pump comprises a booster pump (4), a first-stage oil scavenger pump (1), a second-stage oil scavenger pump (2), a third-stage oil scavenger pump (3), a shaft (12), an oil distributor (14), a support seat (7), a sliding bearing (8), a housing (5), an oil inlet groove (15) and an oil outlet groove (16), wherein a pressure maintaining valve is mounted at the outlet of the booster pump (4); an inner rotor (9) and an outer rotor (10) both adopt an eccentric structure; the oil inlet groove (15) and the oil outlet groove (16) form an oblique angle; and an adjustable pressure-limiting valve is arranged between the inlet and the outlet of the booster pump (4). The high-speed extensive cycloid internal gearing lubricating oil pump has the advantages of small size, light weight, high efficiency, long service life and good high-altitude performance, and can meet excessive demands on accessories of a novel aircraft engine. Compared with a low-speed internal gearing lubricating oil pump in the same size, the performance is improved by 57 percent; and under the same design requirements, the size is reduced by 36 percent and the weight is reduced by 30 percent.

Description

Engagement lubricating oil pump in the general cycloid of a kind of high speed
Technical field
The utility model belongs to aeroengine lubrication system field, particularly relates to engagement lubricating oil pump in the general cycloid of a kind of high speed.
Background technique
Along with the development of aero engine technology, require the motor thrust weight ratio increasingly high.Therefore the engine accessory power rating development trend be in light weight, volume is little, efficient is high.In aeroengine gear lubricating oil pump field, mainly contain the lubricating oil pump of 3 kinds of structures: blade gear pump, external gear pump and the general cycloid gear pump of interior engagement.Development trend now, the general cycloid gear pump of engagement in increasing aeroengine adopts.In the general cycloid gear pump of engagement have that volume is little, efficient is high, simple and compact for structure, advantage such as high-level performance is good, but its rotating speed generally is no more than 7000r/min.Along with the aeroengine rotating speed is increasingly high, the general cycloid gear pump of engagement needs bigger velocity ratio in adopting, and driven accessary is impacted; Perhaps adopt the blade gear pump, but this structure lubricating oil pump at aspects such as efficient, volume, weight all not as the general cycloid gear pump of interior engagement.
Summary of the invention
The purpose of the utility model is: the general cycloid engagement of a kind of high speed lubricating oil pump is provided, can improves the rotating speed of lubricating oil pump, reduce the volume and weight of lubricating oil pump, adapt to aeroengine rotating speed and the requirement more and more harsher to weight and volume now.
The technological scheme of the utility model is: engagement lubricating oil pump in the general cycloid of a kind of high speed; Comprise suction booster 4 and first order dump pump 1, second level dump pump 2, third level dump pump 3; Axle 12, divide food tray 14, supporting base 7, sliding bearing 8, housing 5, oil-feed tank 15 and go out oil groove 16; Said suction booster 4 includes internal rotor 9, external rotor 10, lining 11 with first order dump pump 1, second level dump pump 2, third level dump pump 3; Suction booster 4 is connected through axle 12 with first order dump pump 1, second level dump pump 2, third level dump pump 3; The internal rotor 9, external rotor 10 and the lining 11 that divide food tray 14 to isolate suction booster 4 and first order dump pump 1, second level dump pump 2, third level dump pump 3, axle 12 adopts key 13 to be connected torsion pass with internal rotor 9;
Outlet at suction booster 4 is equipped with pressure maintaining valve, and pressure maintaining valve is made up of plug 17, gland nut 18 and pressure maintaining valve spring 19, and plug 17 1 ends are fixed in housing 5.
Said internal rotor 9, external rotor 10 are eccentric structure.
Said oil-feed tank 15 and go out oil groove 16 formation oblique angles.
Between the import of suction booster 4 and outlet, be provided with can regulate pressure limiting valve, said can regulate pressure limiting valve comprises valve 20, adjustment pad 21, pressure regulating valve spring 22 and gland nut 23.
The utility model has the advantages that: it is little, in light weight to the utlity model has volume, and efficient is high, and the life-span is long, and high-altitude property is good, and advantages such as wide accommodation can satisfy the harsh requirement of novel aeroengine to the one-tenth annex.Compare the interior engagement of the low speed lubricating oil pump of same size, performance can improve 57%; Under same design required, volume can reduce 36%, and weight can alleviate 30%.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the utility model oil-feed tank, go out the oil groove schematic representation.
Fig. 3 is for optimizing preceding oil-feed tank, going out the oil groove schematic representation.
Fig. 4 is the pressure maintaining valve schematic representation.
Fig. 5 is a can regulate pressure limiting valve schematic representation.
Wherein, 1-first order dump pump, 2-second level dump pump, 3-third level dump pump, 4-suction booster, 5. housing, 6-bonnet, 7-supporting base, 8-sliding bearing, 9-internal rotor, 10-external rotor, 11-lining, 12-axle, 13-key, 14-divide food tray, 15-oil-feed tank, 16-to go out oil groove, 17-plug, 18-gland nut, 19-pressure maintaining valve spring, 20-valve, 21-adjustment pad, 22-pressure regulating valve spring, 23-gland nut.
Embodiment
Below in conjunction with accompanying drawing the utility model is done to describe in further detail, seen also Fig. 1 to Fig. 5.
As shown in Figure 1; Engagement lubricating oil pump in the general cycloid of a kind of high speed; Comprise suction booster 4 and first order dump pump 1, second level dump pump 2, third level dump pump 3; Axle 12, divide food tray 14, supporting base 7, sliding bearing 8, housing 5, oil-feed tank 15 and go out oil groove 16; Said suction booster 4 includes internal rotor 9, external rotor 10, lining 11 with first order dump pump 1, second level dump pump 2, third level dump pump 3, and suction booster 4 is connected through axle 12 with first order dump pump 1, second level dump pump 2, third level dump pump 3, divides food tray 14 to isolate internal rotor 9, external rotor 10 and the lining 11 of suction booster 4 and first order dump pump 1, second level dump pump 2, third level dump pump 3; Axle 12 adopts key 13 to be connected torsion pass with internal rotor 9, realizes the lubricating oil pump running.
The lubricating oil pump rotating speed improves, and causes lubricating oil pump internal friction aggravation, causes the internal work environmental deterioration of lubricating oil pump.Lubricating oil pump internal friction campaign mainly comprises internal rotor 9, external rotor 10 and divides the friction between friction, external rotor 9 and the lining 11 between friction between the food tray 14, axle 12 and the supporting base 7.In order to adapt to the inner rugged environment of high speed lubricating oil pump and to improve the lubricating oil pump life-span, once improve respectively:
As shown in Figure 4, in the outlet of suction booster 4 pressure maintaining valve is installed, pressure maintaining valve is made up of plug 17, gland nut 18 and pressure maintaining valve spring 19, and plug 17 1 ends are fixed in housing 5.Because pressure maintaining valve is positioned at the inside of the outlet of suction booster 4, can't represent among Fig. 1.
Said internal rotor 9, external rotor 10 are eccentric structure, thereby reduce the influence of high rotating speed to design of part intensity.
Like Fig. 2 and shown in Figure 3, said oil-feed tank 15 and go out oil groove 16 formation oblique angles makes it meet the characteristic that lubricating oil flows more, and the experiment proof is compared that optimizing advances and oil groove and improves oil suction efficient 3%.
As shown in Figure 5, between the import of suction booster 4 and outlet, be provided with can regulate pressure limiting valve, said can regulate pressure limiting valve comprises valve 20, adjustment pad 21, pressure regulating valve spring 22 and gland nut 23.Through regulating adjustment pad 21, change the pre compressed magnitude of pressure regulating valve spring 22, regulate suction booster 4 outlet lubricating oil pressures, thereby adapt to various engine lubrication systems supplying the different demands of lubricating oil pressure.
The utility model can reduce the fricting movement between inner inner and outer rotors of lubricating oil pump and the branch food tray (or supporting base), improves the surface abrasion resistance that divides food tray (perhaps supporting base), guarantees lubricating between sliding bearing and the axle; Improve the structural strength of part; Reduce lubricating oil pump inner stress, vibration and noise, improve the oil suction efficient of oil suction groove, optimize the suction booster outlet and wait other modes; Lubricating oil pump can be run up; Improve the lubricating oil pump life-span, stable, adapt to the different demands of various aeroengine lubrication systems.

Claims (4)

1. mesh lubricating oil pump in the general cycloid of high speed; Comprise suction booster [4] and first order dump pump [1], second level dump pump [2], third level dump pump [3]; Axle [12], divide food tray [14], supporting base [7], sliding bearing [8], housing [5], oil-feed tank [15] and go out oil groove [16]; Said suction booster [4] and first order dump pump [1], second level dump pump [2], third level dump pump [3] include internal rotor [9], external rotor [10], lining [11]; Suction booster [4] and first order dump pump [1], second level dump pump [2], third level dump pump [3] are through axle [12] series connection; The internal rotor [9], external rotor [10] and the lining [11] that divide food tray [14] isolation suction booster [4] and first order dump pump [1], second level dump pump [2], third level dump pump [3]; Axle [12] adopts key [13] to be connected torsion pass with internal rotor [9], it is characterized in that:
Outlet at suction booster [4] is equipped with pressure maintaining valve, and pressure maintaining valve is made up of plug [17], gland nut [18] and pressure maintaining valve spring [19], and plug [17] one ends are fixed in housing [5].
2. the engagement lubricating oil pump is characterized in that said internal rotor [9], external rotor [10] are eccentric structure in the general cycloid of a kind of high speed according to claim 1.
3. the engagement lubricating oil pump is characterized in that in the general cycloid of a kind of high speed according to claim 2, said oil-feed tank [15] and go out oil groove [16] and form the oblique angle.
4. engagement lubricating oil pump in the general cycloid of a kind of high speed according to claim 3; It is characterized in that; Between the import of suction booster [4] and outlet, be provided with can regulate pressure limiting valve, said can regulate pressure limiting valve comprises valve [20], adjustment pad [21], pressure regulating valve spring [22] and gland nut [23].
CN2011205766095U 2011-12-29 2011-12-29 High-speed extensive cycloid internal gearing lubricating oil pump Expired - Lifetime CN202521202U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011205766095U CN202521202U (en) 2011-12-29 2011-12-29 High-speed extensive cycloid internal gearing lubricating oil pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011205766095U CN202521202U (en) 2011-12-29 2011-12-29 High-speed extensive cycloid internal gearing lubricating oil pump

Publications (1)

Publication Number Publication Date
CN202521202U true CN202521202U (en) 2012-11-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011205766095U Expired - Lifetime CN202521202U (en) 2011-12-29 2011-12-29 High-speed extensive cycloid internal gearing lubricating oil pump

Country Status (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104196719A (en) * 2014-08-29 2014-12-10 西北工业大学 Multi-stage internal meshing aircraft fuel gear pump
CN110925093A (en) * 2019-12-05 2020-03-27 中国航发四川燃气涡轮研究院 Compound pressure boost lubricating oil device and lubricating oil system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104196719A (en) * 2014-08-29 2014-12-10 西北工业大学 Multi-stage internal meshing aircraft fuel gear pump
CN110925093A (en) * 2019-12-05 2020-03-27 中国航发四川燃气涡轮研究院 Compound pressure boost lubricating oil device and lubricating oil system

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CX01 Expiry of patent term

Granted publication date: 20121107

CX01 Expiry of patent term