CN1367319A - Rolling type blade hydraulic pump - Google Patents
Rolling type blade hydraulic pump Download PDFInfo
- Publication number
- CN1367319A CN1367319A CN 02113217 CN02113217A CN1367319A CN 1367319 A CN1367319 A CN 1367319A CN 02113217 CN02113217 CN 02113217 CN 02113217 A CN02113217 A CN 02113217A CN 1367319 A CN1367319 A CN 1367319A
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- China
- Prior art keywords
- rotor
- stator
- type blade
- rolling type
- hydraulic pump
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Abstract
The rolling paddle hydraulic pump mainly includes rolor, paddle, stator, pump body and flat valve core, and is mainly characterized by that its paddle is formed from cylindrical rolling body, and placed in the U-shaped groove on the external peripheral surface of the rotor so as to substituted rectangular paddle of conventional paddle pump. Said invention utilizes rolling motion instead of sliding motion.
Description
Technical field:
The present invention relates to the volume-type hydraulic pump in the hydraulic equipment.
Background technique:
Oil hydraulic pump is the key equipment in the Hydraulic Power Transmission System, and the mechanical energy that it imports prime mover converts the pressure energy of working liquid body to, for hydraulic system provides required pressure oil stream.At present, oil hydraulic pump mainly is divided into gear pump, vane pump and plunger pump three major types, and wherein, vane pump is because compact structure, volume is little, power-weight ratio is big, thus be widely used in various in, in the low-pressure hydraulic system.Traditional vane pump mainly comprises parts such as rotor, blade, stator, the pump housing, oil baffle disc; Circumference has some rectangle grooves in the rotor upper edge, rectangular paddle is placed in one, and can radially slide along groove, stator is placed in the pump housing, in the cavity of stator rotor is installed, when rotor rotation, rectangular paddle is rotated with rotor, meanwhile, under the effect of centrifugal force and oil pressure, rectangular paddle closely contacts with stator inner surface, and is forced in the rotor with the variation of stator inner surface curve and radially reciprocatingly slides, thereby Seal cage volume between every adjacent two blades is changed and forms suction, oil-discharging cavity.Because in the course of the work, directly slide at stator inner surface in the rectangular paddle top, so wearing and tearing are big, the life-span is low, and responsive to greasy dirt.In order to overcome above-mentioned shortcoming, people have taked various measures, and as improving material, improve structure reducing contact pressure etc., but effect is all not obvious, and its reason is not start with from eliminating this root problem of sliding friction.
Summary of the invention:
The objective of the invention is to, propose a kind of rolling type blade hydraulic pump, replace rectangular paddle, make the sliding friction between blade and stator inner surface become rolling friction with the blade of rolling type, reducing wear, thus the working life of improving pump.For reaching this purpose, the present invention by the following technical solutions:
Rolling type blade hydraulic pump, mainly comprise rotor (1), stator (4), the pump housing (5), left side oil baffle disc (12), right oil baffle disc (7), stator (4) places the pump housing (5), lay rotor (1) in the cavity of stator (4), a left side, right oil baffle disc (12), (7) lay respectively at the left side of rotor (1), right-hand member, and connect with stator (4) with coupling, the invention is characterized in: on the periphery of rotor (1), have several U-groove bevels (e), U-groove bevel (e) is symmetrical distribution with respect to the center of rotor (1) on the periphery of rotor (1), the rolling type blade (2) that is made of rolling element places U-groove bevel (e); At the center of rotor (1) flow spool (3) is installed, the bottom of each U-groove bevel (e) has an oil drainage hole (d) and communicates with flow spool (3); The internal surface of stator (4) is made up of great circle cambered surface (h), little arc surface (f) and inclined-plane (g), is connected with the transition circle cambered surface between inclined-plane (g) and large and small arc surface (h), (f), has oil inlet hole (a) on inclined-plane (g).When rotor (1) rotates, drive the center revolution of blade (2) of respectively rolling on the one hand around rotor (1), the blade (2) that rolls on the other hand is close to the internal surface of stator (4) and is rolled along the internal surface of stator (4) after the effect lower edge of centrifugal force and oil pressure radially slides, and contact with the internal surface of stator (4) and one side of U-groove bevel (e) all the time in the course of the work, thereby oil sucting cavity (b) and oil-discharging cavity (c) are separated, by rotor (1), rolling blade (2), flow spool (3), a stator (4) and a left side, right oil baffle disc (12), (7) formed Seal cage volume changes and pressure oil output.
Advantage of the present invention is:
(1) with the rectangular paddle of cylindrical rolling type blade replacement common blade pump, realized replacing sliding, reduced fretting wear, thereby prolonged the working life of pump to roll.
(2) blade of common blade pump and blade groove have and very high cooperate requirement and do not have between rolling type blade of the present invention and the U-groove bevel and cooperate requirement, and easy to manufacture, cost is low.
(3) rolling type blade is symmetrical distribution with respect to rotor center on rotor, and suction, oil drainage hole evenly distribute, and make its radial load complete equilibrium in theory, thereby shaft strength are little, and the life-span is long.
(4) after the present invention adopts rolling type blade, insensitive to greasy dirt, thereby Applicable scope is wider, for example: the present invention can be used for sewage transport, field irrigation etc.
(5) transfer efficiency of the present invention is higher, compact structure.
Description of drawings:
Fig. 1 is the schematic representation of cross section view of the present invention;
Fig. 2 is the schematic representation of longitudinal section of the present invention sectional view.
Embodiment:
The mode of execution of existing accompanying drawings.Referring to Fig. 1, Fig. 2, rolling type blade hydraulic pump mainly comprises rotor (1), stator (4), the pump housing (5), left oil baffle disc (12), right oil baffle disc (7); Stator (4) places the pump housing (5), lays rotor (1) in the cavity of stator (4), and left and right oil baffle disc (12), (7) lay respectively at the left and right end of rotor (1), and is fixed on the end of stator (4) with screw (11).On the periphery of rotor (1), have six U-groove bevels (e), U-groove bevel (e) is symmetrical distribution with respect to the center of rotor (1) on the periphery of rotor (1), the rolling type blade (2) that is made of roller has been installed in U-groove bevel (e), flow spool (3) and fixing with key (14) is installed at the center of rotor (1), adopt movingly between rotor (1) and the flow spool (3), the bottom of each U-groove bevel (e) has an oil drainage hole (d) and communicates with flow spool (3); Stator (4) internal surface is made up of great circle cambered surface (h), little arc surface (f) and inclined-plane (g), is connected with the transition circle cambered surface between inclined-plane (g) and large and small arc surface (h), (f), has oil inlet hole (a) on inclined-plane (g).The concrete size of the big or small arc surface (h) of flow spool (3) and rotor inner surface, (f), inclined-plane (g) is determined according to the parameters such as required oil pressure and oil transportation amount of working.The two supports of rotor (1) is on bearing (9), and bearing (9) is installed in the appropriate location in left end cap (13), the right end cap (8).For preventing that pressure oil from leaking, and installed seal ring (10) between right end cap (8) and rotor (1).The pump housing (5) links by screw (6) and left and right end cap (13), (8).
During work, rotor (1) rotates, make the rotate center revolution of son (1) of rolling blade (2) by U-groove bevel, under the effect of centrifugal force and pressure oil, be close to the internal surface of stator (4) after rolling blade (2) radially slides and roll, thereby oil sucting cavity (b) and oil-discharging cavity (c) are separated along stator (4) internal surface.In the course of the work, constantly change and pressure oil output by rotor (1), rolling blade (2), flow spool (3), stator (4), left oil baffle disc (12), the formed Seal cage volume of right oil baffle disc (7), rotor is whenever goed around, every Seal cage suction, oil extraction each three times.
Claims (3)
1. rolling type blade hydraulic pump, mainly comprise rotor (1), stator (4), the pump housing (5), left side oil baffle disc (12), right oil baffle disc (7), stator (4) places the pump housing (5), lay rotor (1) in the cavity of stator (4), a left side, right shelves food tray (12), (7) lay respectively at the left side of rotor (1), right-hand member, and connect with stator (4) with coupling, it is characterized in that: on the periphery of rotor (1), have several U type grooves (e), U-groove bevel (e) is symmetrical distribution with respect to the center of rotor (1) on the periphery of rotor (1), the rolling type blade (2) that is made of rolling element places U-groove bevel (e).
2. rolling type blade hydraulic pump according to claim 1 is characterized in that: at the center of rotor (1) flow spool (3) is installed, the bottom of each U-groove bevel (e) has an oil drainage hole (d) and communicates with flow spool (3).
3. rolling type blade hydraulic pump according to claim 1, it is characterized in that: the internal surface of stator (4) is made up of great circle cambered surface (h), little arc surface (f) and inclined-plane (g), be connected with the transition circle cambered surface between inclined-plane (g) and large and small arc surface (h), (f), on inclined-plane (g), offer oil inlet hole (a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02113217 CN1367319A (en) | 2002-01-08 | 2002-01-08 | Rolling type blade hydraulic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02113217 CN1367319A (en) | 2002-01-08 | 2002-01-08 | Rolling type blade hydraulic pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1367319A true CN1367319A (en) | 2002-09-04 |
Family
ID=4742513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02113217 Pending CN1367319A (en) | 2002-01-08 | 2002-01-08 | Rolling type blade hydraulic pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1367319A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102869888A (en) * | 2010-04-19 | 2013-01-09 | 通用电气公司 | Solid feed guide apparatus for a solid feed pump |
| CN116572627A (en) * | 2023-04-14 | 2023-08-11 | 南京鑫新文化传媒有限公司 | Uniform inking equipment for printing ink |
-
2002
- 2002-01-08 CN CN 02113217 patent/CN1367319A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102869888A (en) * | 2010-04-19 | 2013-01-09 | 通用电气公司 | Solid feed guide apparatus for a solid feed pump |
| CN116572627A (en) * | 2023-04-14 | 2023-08-11 | 南京鑫新文化传媒有限公司 | Uniform inking equipment for printing ink |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |