CN1453472A - Axial-flow radial plunger pump with floating bush sleeve - Google Patents
Axial-flow radial plunger pump with floating bush sleeve Download PDFInfo
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- CN1453472A CN1453472A CN 03131659 CN03131659A CN1453472A CN 1453472 A CN1453472 A CN 1453472A CN 03131659 CN03131659 CN 03131659 CN 03131659 A CN03131659 A CN 03131659A CN 1453472 A CN1453472 A CN 1453472A
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Abstract
The present invention relates to high-performance hydraulic element in fluid transmission and control technology. In order to solve the shaft-locking problem of shaft flow-distributing radial plunger pump, one shaft flow-distributing radial plunger pump with floating bush sleeve is proposed. By means of pressure feedback effect and heat effect of floating bush sleeve, the interval between the rotor and the flow-distributing shaft is regulated automatically. The interval may be relatively larger and is floated, so that the heat effect of the friction pair of the flow-distributing shaft and the rotor inner surface produces no shaft locking. The present invention can solve the problems of sealing, friction, heating and expansion, and improve the performance of the flow distributing pair and the whole radial plunger pump.
Description
Affiliated technical field
The present invention relates to the high-performance hydraulic element in the Fluid Transmission and Control technology, refer in particular to a kind of axle flow radial plunger pump with watt cover that floats.
Background technique
Axle flow radial plunger type oil hydraulic pump is one of plunger pump that grows up the earliest, has simple in structurely, and noise is little, characteristics such as shock resistance, but because " seize " problem is not resolved for many years, limited the raising of performance index such as its pressure, flow, rotating speed, also dwindled its application." seize " problem was once thought impassable obstacle in the radial plunger pump development by the authority of oilhydraulic engineering technical field, was the inherent feature of radial plunger pump, and had made the conclusion that radial plunger pump should not develop.So-called " seize " problem is that the rotor inner hole of spindle flow radial plunger pump is enclosed within on the pintle with high-speed overload when the rotation of the axle center of pintle, the interlock that rotor inner hole and pintle surface produce because of frictional heating and matching gap change, pull, stuck phenomenon." seize " problem has directly caused the inefficacy of this type of oil hydraulic pump, development along with materials science, computer science, high performance friction material and more accurate flow field analysis simulation technique have appearred, make axle flow radial plunger pump performance be greatly improved, but because structural, " seize " problem does not obtain basic solution.From the patent retrieval situation, occurred the radial plunger pump of various different structures at present, and the friction leakage characteristics of flow pair rests on still on the conventional method of the calculating in flow field and mechanical analysis, there is not new structure to occur.
Summary of the invention
In order fundamentally to solve " seize " problem of axle flow radial plunger pump, the present invention proposes a kind of axle flow radial plunger pump with watt cover that floats, it can solve sealing in the flow friction pair, friction, heating and expand between relation, improved the secondary and whole radial plunger pump performance of flow.
According to working conditions change, the matching gap of adjusting the friction pair of pintle-rotor inner surface is the key that solves " seize " problem, realizes that the technological scheme of above-mentioned purpose is:
With stator, retaining ring, rotor, connecting rod, plunger, pintle is in the radial plunger pump of main movement parts, it is characterized in that between pintle-rotor junction plane, setting up the unsteady watt cover of cambered surface, watt cover that floats is placed in the annular watt groove of rotor inner hole, and its quantity equates with the plunger number.This watt cover that floats is from the spatial position and can small variation be arranged along rotor radial in shape, realizes the automatic adjustment in rotor and pintle gap;
Watt area of cover outer arced surface oil pressure acting surface that floats is slightly larger than intrados oil pressure active area, make under same pressure effect, be close to the external cylindrical surface of pintle by the formed feasible watt cover that floats of making a concerted effort small, that point to the rotor rotating center of area difference, guaranteed sealing, reduced frictional force again, radial clearance can be adjusted automatically by the pressure feedback effect;
Watt cover that floats is selected shape memory alloy material for use, can adjust the shape of watt cover by the thermal distortion of marmem automatically.Can realize after temperature variation, utilize the thermal effect of watt cover that floats to adjust rotor and pintle gap automatically.
Above-mentioned thermal effect and pressure effect combine the automatic adjustment that can realize the gap;
The middle of watt cover exterior arc surface is provided with the hollow end pin that is connected with watt cover that floats, and the cylindrical of hollow end pin cooperates with the bottom outlet of plunger hole, makes watt cover that floats have only micro-radial floating, does not produce circumferential, axial motion.
Because flow partly is to realize that by watt cover that floats originally pintle-rotor inner surface only plays centering, leading role, its gap can be amplified relatively, does not influence the sealing of fluid.And because the fixed interval (FI) of flow part becomes flying height, the fixed interval (FI) of centering, targeting part increases relatively, and therefore, the thermal expansion effects of the friction pair of pintle-rotor inner surface can not cause " seize " phenomenon.
The invention has the beneficial effects as follows can be according to the variation of operating mode, the matching gap of the friction pair of the automatic backlash compensation adjustment pintle-rotor inner surface of the unsteady watt cover of utilization, solve " seize " problem of the flow friction pair of axle flow radial plunger pump, improve this type of plunger technical data required for the pump, expand its application.
Description of drawings
Fig. 1 is the structural representation of axis flow radial pump of the present invention
Fig. 2 has provided the left view of Fig. 1:
1. stator 2. retaining rings 3. rotors 4. connecting rods overlap 6. plunger holes, 7. pintles, 8. oil extraction windows, 9. rotors watt groove, 10. oil sucking windows, 11. plunger holes, 12. plunger hole bottom outlets, 13 hollow end pins for 5. unsteady watts
Embodiment
Fig. 1, Fig. 2 have provided and have adopted watt structural representation of cover rear axle flow pair that floats, the gap of standing part is δ in pintle and the rotor clearance, pintle-rotor flying height is ε, flying height ε is the function of oil hydraulic pump operating mode, specifically, be the function of the friction pair pressure and temperature of pintle-rotor inner surface, its numerical value ε is less than fixed interval (FI) δ, can change its numerical values recited by the variation of self shape and position.
Watt embodiment of cover automatic backlash compensation of floating is as follows:
Be in the radial plunger pump of main movement parts with stator (1), retaining ring (2), rotor (3), connecting rod (4), plunger (6), pintle (7), unsteady watt of cover (5) size corresponding rotor watt groove (9) of Che Yiyu in the endoporus of rotor (3), a plurality of watt covers (5) that float that quantity is identical with plunger (6) number embed rotor watt groove (9), hollow end pin (13) on each watt cover outer arced surface that floats inserts plunger hole bottom outlet (12), play circumferential positioning action, circumferentially play of watt cover (5) prevents to float; Because the degree of depth of rotor watt groove (9) is bigger, watt cover (5) that floats can be done radial floating along the axis of plunger hole (11), and float function can be realized by the thermal distortion of the pressure feedback or watt cover that floats.
If adopt pressure feedback, then can realize watt equilibrium relation of cover (5) outer arced surface impacting force of floating float watt support force of cover (5) intrados and the oil pressure in the plunger hole (11) by pintle (7); If adopt thermal distortion, then can select for use high wear resistance, high-intensity shape memory alloy material to realize; Both of these case all can will float watt radial floating function of cover (5) and oil hydraulic pump operating mode by the reverse feedback relationship, the automatic adjustment in realize floating watt cover (5) and pintle (7) gap.Watt cover (5) float function that floats guarantees that it is close to pintle (7) surface, guarantees the fluid sealing, has offset the effect of expanding with heat and contract with cold of friction pair, has guaranteed the normal working clearance, has eliminated " seize ".
Claims (4)
1. the band axle flow radial plunger pump of watt cover that floats, it is main movement parts with stator (1), retaining ring (2), rotor (3), connecting rod (4), plunger (6), pintle (7), it is characterized in that between pintle-rotor junction plane, setting up unsteady watt of cover (5) of cambered surface, watt cover (5) that floats is placed in the ring-shaped rotor watt groove (9) of rotor (3) endoporus, and its quantity equates with the plunger number.
2. according to a kind of axle flow radial plunger pump with watt cover that floats of claim 1, watt area of cover (5) outer arced surface oil pressure acting surface that it is characterized in that floating is slightly larger than intrados oil pressure active area.
3. according to a kind of axle flow radial plunger pump with watt cover that floats of claim 1, watt cover (5) that it is characterized in that floating is selected shape memory alloy material for use.
4. according to a kind of axle flow radial plunger pump of claim 1 with watt cover that floats, it is characterized in that floating, watt middle of cover (5) exterior arc surface has and watt hollow end pin (13) that cover (5) is connected that floats, and the cylindrical of hollow end pin (13) cooperates with plunger hole bottom outlet (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03131659 CN1233929C (en) | 2003-06-02 | 2003-06-02 | Axial-flow radial plunger pump with floating bush sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03131659 CN1233929C (en) | 2003-06-02 | 2003-06-02 | Axial-flow radial plunger pump with floating bush sleeve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1453472A true CN1453472A (en) | 2003-11-05 |
| CN1233929C CN1233929C (en) | 2005-12-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03131659 Expired - Fee Related CN1233929C (en) | 2003-06-02 | 2003-06-02 | Axial-flow radial plunger pump with floating bush sleeve |
Country Status (1)
| Country | Link |
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| CN (1) | CN1233929C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101985921A (en) * | 2010-09-20 | 2011-03-16 | 余文凌 | External radial plunger pump of sealing mechanism |
| CN101495750B (en) * | 2006-02-27 | 2012-02-29 | 楚卡尔装备有限责任公司 | High pressure pump of variable displacement |
| CN102425537A (en) * | 2011-12-14 | 2012-04-25 | 闫鹏 | Diaphragm pump |
| CN102628443A (en) * | 2011-06-14 | 2012-08-08 | 兰州理工大学 | Magnetic force compensating type axial flow-distribution radial plunger pump |
| CN103233873A (en) * | 2013-04-18 | 2013-08-07 | 西安交通大学 | External-rotor radial plunger hydraulic pump integrated with motors |
| CN105114291A (en) * | 2015-08-07 | 2015-12-02 | 柳超 | Transversely arranged multi-piston compressor based on rotating ring |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7772756B2 (en) | 2003-08-01 | 2010-08-10 | Semiconductor Energy Laboratory Co., Ltd. | Light-emitting device including a dual emission panel |
-
2003
- 2003-06-02 CN CN 03131659 patent/CN1233929C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101495750B (en) * | 2006-02-27 | 2012-02-29 | 楚卡尔装备有限责任公司 | High pressure pump of variable displacement |
| CN101985921A (en) * | 2010-09-20 | 2011-03-16 | 余文凌 | External radial plunger pump of sealing mechanism |
| CN101985921B (en) * | 2010-09-20 | 2013-04-24 | 余文凌 | External radial plunger pump of casing tongue sealing mechanism |
| CN102628443A (en) * | 2011-06-14 | 2012-08-08 | 兰州理工大学 | Magnetic force compensating type axial flow-distribution radial plunger pump |
| CN102425537A (en) * | 2011-12-14 | 2012-04-25 | 闫鹏 | Diaphragm pump |
| CN103233873A (en) * | 2013-04-18 | 2013-08-07 | 西安交通大学 | External-rotor radial plunger hydraulic pump integrated with motors |
| CN103233873B (en) * | 2013-04-18 | 2015-06-03 | 西安交通大学 | External-rotor radial plunger hydraulic pump integrated with motors |
| CN105114291A (en) * | 2015-08-07 | 2015-12-02 | 柳超 | Transversely arranged multi-piston compressor based on rotating ring |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1233929C (en) | 2005-12-28 |
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