CN204041445U - A kind of low wearing and tearing hydraulic machinery - Google Patents
A kind of low wearing and tearing hydraulic machinery Download PDFInfo
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- CN204041445U CN204041445U CN201420333076.1U CN201420333076U CN204041445U CN 204041445 U CN204041445 U CN 204041445U CN 201420333076 U CN201420333076 U CN 201420333076U CN 204041445 U CN204041445 U CN 204041445U
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- 239000012530 fluid Substances 0.000 claims abstract description 68
- 230000007423 decrease Effects 0.000 claims abstract description 27
- 230000000630 rising effect Effects 0.000 claims abstract description 26
- 238000005096 rolling process Methods 0.000 claims abstract description 18
- 238000005461 lubrication Methods 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims description 9
- 230000007935 neutral effect Effects 0.000 claims description 3
- 208000031872 Body Remains Diseases 0.000 description 5
- 238000005457 optimization Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
The utility model discloses a kind of low wearing and tearing hydraulic machinery, comprise the rotor with some radial grooves, some blades, stator, be located at the side plate at stators and rotators two ends, blade outer end is provided with raceway towards the end face of stator inner surface, roll body is movably set with in raceway, there is between roll body and raceway fluid lubrication film, roll body face bulged blade front-end face, blade roll body face when stretching out of sliding contacts with stator inner surface rolling friction, stator inner surface rising section or side plate end face relevant position are shaped with influent stream window, stator inner surface decline section or side plate end face relevant position are provided with out stream window, rotor outer circle face, stator inner surface, adjacent blades and roll body, side sheet room forms fluid operating chamber, be positioned at rising section fluid operating chamber to communicate with influent stream window, be positioned at decline section fluid operating chamber and go out to flow window and communicate.This low wearing and tearing hydraulic machinery, adopts the rolling friction of low wearing and tearing, improves product performance, improve product reliability and life-span.
Description
Technical field
The utility model relates to the Vane-type hydraulic machine such as hydraulic vane pump and motor technical field, especially relates to a kind of low wearing and tearing hydraulic machinery.
Background technique
Be sliding friction between the blade of existing hydraulic vane pump and motor and stator, stator inner surface inefficacy easy to wear, thus affect product performance and life-span.Also there is employing rolling type blade in certain prior art, reduce the oil hydraulic pump of stator inner surface Problem of Failure easy to wear.
Chinese patent literature (day for announcing: on September 4th, 2002, notification number: CN 1367319A) discloses a kind of rolling type blade hydraulic pump, and it relates to the volume-type hydraulic pump category in hydraulic equipment.This oil hydraulic pump mainly comprises rotor, blade, stator, the pump housing, flow spool.Main feature of the present utility model is, blade is made up of cylindrical rolling element, and it is placed in the U-groove bevel on rotor outer circle face, thus instead of the rectangular paddle of conventional vane pump.
Above-mentioned technological scheme directly adopts cylindrical rolling element as blade, instead of slip with rolling, has friction little, the advantages such as light abrasion.But existing defects in program structure, be packing less between roller and stator inner surface and adjacent two blades, such structure can cause sealing effect poor, and service behaviour reduces.
Chinese patent literature (the day for announcing: on May 15th, 2013, notification number: CN 202937401U) disclose a kind of two-spool blade does not produce circle friction vane type motor to rotor sidewall, there are two kinds of structural types, one is, blade radial outward edge does not produce circle friction with the external rotor madial wall of motor; Two are, blade radial inward flange does not produce circle friction with the internal rotor outer side wall of motor.Internal rotor is cylindrical body, and external rotor is the cylindrical body be enclosed within outside internal rotor, two cover supporting bearings and seal arrangement assembly at cylindrical body axis two ends, the axis of internal rotor and the axis being parallel of external rotor, disalignment; Centered by the axis of external rotor, do the equidistant point of external rotor, the blade of external rotor is set respectively by equidistant point on external rotor, is rigidly connected with external rotor.
Technique scheme adopts dual-rotor structure to realize reducing circle friction, extends the working life of motor, but program complex structure, and cost is high.
Model utility content
The purpose of this utility model is to solve existing blade mechanism blade and stator inner surface sliding friction causes stator inner surface inefficacy easy to wear, affect the problem in product performance and life-span, and provide a kind of blade and stator inner surface to form the rolling friction of low wearing and tearing, have good, can enhance product performance and product reliability and the low wearing and tearing hydraulic machinery in life-span.
The utility model realizes the technological scheme that its technical purpose adopts: a kind of low wearing and tearing hydraulic machinery, comprise the rotor with some radial grooves, be slidably arranged in the some blades in each radial groove, be arranged on rotor exterior and internal surface is along the circumferential direction provided with the stator of at least one rising section and at least one decline section, be located at the side plate at stators and rotators two ends, the end face that described blade outer end contacts with stator inner surface is provided with raceway, roll body is movably set with in raceway, there is between fluid and raceway fluid lubrication film, roll body face bulged blade front-end face, blade roll body face when stretching out of sliding contacts with stator Nei Biaonei rolling friction, stator inner surface rising section or side plate end face corresponding position are provided with influent stream window, stator inner surface decline section or side plate end face corresponding position are provided with out stream window, rotor outer circle face, stator inner surface, adjacent blades and roll body, side sheet room forms fluid operating chamber, be positioned at rising section fluid operating chamber to communicate with influent stream window, be positioned at decline section fluid operating chamber and go out to flow window and communicate.This low wearing and tearing hydraulic machinery, by arranging raceway on blade outer end face, and in raceway inside, roll body is set, fluid lubrication film is formed between roll body and raceway, roll body face bulged blade front-end face, when blade slip is stretched out, roll body face contacts with stator inner surface, realize rolling friction contact, and vane nose face no longer contacts stator inner surface.In working procedure, because stator inner surface rising section or side plate end face corresponding position are provided with influent stream window, stator inner surface decline section or side plate end face corresponding position are provided with out stream window, rotor outer circle face, stator inner surface, adjacent blades and roll body, side sheet room forms fluid operating chamber, be positioned at rising section fluid operating chamber to communicate with influent stream window, be positioned at decline section fluid operating chamber and go out to flow window and communicate, fluid enters fluid operating chamber by influent stream window, by decline section fluid operating chamber with go out to flow window and be connected, realize fluid operating, in fluid operating inside cavity, roll body and stator inner surface realize rolling friction and contact, thus overcome the problem that sliding friction causes stator inner surface inefficacy easy to wear, the more important thing is and can form fluid lubrication film between this roll body and raceway, improve the service behaviour of product, improve reliability and the life-span of product.
As preferably, influent stream window and go out to flow two ends or the neutral position that window is arranged on stator, influent stream window and go out to flow window and be respectively low-pressure fluid window or high-pressure liquid window.Influent stream window and go out to flow the two ends that window can be arranged on stator shaft orientation, also can be arranged on the neutral position of stator shaft orientation, when for pump, influent stream window is low-pressure fluid window, and going out to flow window is high-pressure liquid window, contrary for side during motor.
As preferably, influent stream window and go out to flow window independence or be interconnected to be arranged at stator two ends, or influent stream window and go out to flow window and be provided be interconnected multiple, or influent stream window and go out to flow window and be provided with separate multiple.Different according to the working condition of hydraulic machinery, influent stream window and go out to flow window respectively with independence or communicate and be arranged at stator two ends, when for using compared with the hydraulic machinery of huge discharge, influent stream window and go out to flow window be interconnected multiple can be set respectively, to meet the needs compared with huge discharge; Certainly if when using for lower pressure fluid window, influent stream window with go out to flow window and can arrange separate multiple respectively.During for pump, influent stream window is low-pressure fluid window, and going out to flow window is high-pressure liquid window, contrary for side during motor.
As preferably, influent stream window and to go out to flow window be many arc groove vibrational power flow in the position of side plate corresponding to stator rising section and decline section, and the groove width of arc groove structure is less than the end arc diameter of roll body.Influent stream window and go out to flow window and be arranged to many arc groove structures, low-pressure fluid and high-pressure liquid can be entered by the window of arc groove structure or be flowed out, and the groove width of arc groove structure is less than the end arc diameter of roll body, influent stream window and the design going out to flow window said structure, it is the range of motion in order to make roll body specify at it, roll body end can not be altered and be moved to window, to ensure normally good work.
As preferably, influent stream window and to go out to flow window be that uniform multiple borehole structures are arranged on the position of side plate corresponding to stator rising section and decline section, and the aperture of borehole structure is less than roll body end arc diameter.Influent stream window and go out to flow window and also can be arranged to equally distributed multiple borehole structure, the aperture of borehole structure is less than roll body end arc diameter simultaneously, makes roll body remain in its range of movement, its end can not play in window, to ensure normal work.Certainly, influent stream window and go out to flow window and also can be designed to other forms, and according to the size of roll body end size appropriate design window, make roll body in its range of movement, roll body end not play in window, to ensure normal work.
As preferably, influent stream window and go out to flow window rib is set near between rotor side and stator inner surface on side plate, spring is provided with below blade, spring below blade is cylindrical spring or coil component spring, when adopting cylindrical spring, cylindrical spring is arranged on blade bottom surface or blade end positions, and when adopting coil component spring, spring is arranged on bottom blade two ends.What arrange rib is to ensure that roll body does not offset in tram motion, and below blade, be provided with spring, and make roll body remain within the scope of rib, spring suitably designs the pressure of blade, makes it normally work.When using cylindrical spring, spring is contained in blade bottom surface or blade end positions; Also can use coil component spring, coil component spring can be located at place or other positions, two ends bottom blade two ends.
As preferably, blade exterior two ends arrange the limit stoper being mechanically connected to blade, and the height of described limit stoper is lower than roll body outer end circular arc peak.Mechanical connection manner is passed through at the two ends that blade exterior i.e. blade stretch out the front portion of blade groove, be provided with limit stoper, the height of limit stoper is no more than the peak at circular arc top, roll body outer end, such structure makes roll body remain on design attitude to take exercises, limit stoper height is no more than roll body top, to ensure that roll body and stator inner surface have good contact, realize rolling friction, improve performance and the life-span of product.
As preferably, blade outer end vertically middle part arranges centering device, and roll body vertically middle part corresponds to centering device and is provided with groove, and described groove is equipped with centering device and contacts with centering device.Blade outer end vertically middle part arranges centering device, middle part corresponding to centering device roll body is provided with groove, groove is equipped with centering device and contacts, and the setting of centering device is the setting placed in the middle in order to realize roll body, makes it remain at good position.
As preferably, described centering device comprises positioning ball and retaining spring, described blade is provided with mounting groove, and described retaining spring is arranged on mounting groove inside, and described positioning ball is arranged on the upper end of retaining spring and contacts with the fit depressions on roll body.The groove depth of described groove is more shallow.Centering device comprises positioning ball and retaining spring, the mounting groove that retaining spring is arranged on blade is inner, retaining spring is equipped with in the below of positioning ball, and positioning ball is arranged on retaining spring upper end and contact with groove fit, to guarantee that the groove on the Surface of Sphere of positioning ball and roll body has good contact, with realize fixed in object, and the groove depth of groove can not be excessive, what arrange is more shallow, leaks too much to avoid active chamber fluid.
As preferably, roll body is cylindrical body, and raceway and cylinder engagement are arranged to arc structure, the bottom of raceway is provided with film forming groove vertically, described film forming groove is shallow slot, and blade is radially provided with the aperture being communicated with film forming groove, the lower end of aperture communicates with blade cavity of resorption or fluid chamber.The preferred cylindrical body of roll body, the good fluid film formed between cylindrical body and raceway, in the bottom of blade raceway, film forming groove is set, and the aperture that film forming groove is disposed radially by blade communicates with blade cavity of resorption or other fluid chamber, pressure fluid is made to be communicated with film forming groove through aperture, make to form better fluid film layer between cylindrical body roll body and raceway, Optimization Work performance.
The beneficial effects of the utility model are: the utility model arranges rotatable cylindrical body roll body by holding in front of the blade on the end face that contacts with stator inner surface, stator or side plate are provided with influent stream window and go out to flow window, fluid lubrication film is formed between cylinder and blade raceway, cylindrical body roll body can remain on blade raceway and the reliable and stable work of side sheet room, cylindrical body roll body and stator inner surface then form the rolling friction of low wearing and tearing, improve product performance, improve reliability and the life-span of product.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the utility model low wearing and tearing hydraulic machinery;
Fig. 2 is influent stream window and go out to flow window and be located at a kind of structural representation on stator in the utility model;
Influent stream window and go out to flow window and be located at the second structural representation on stator in Fig. 3 the utility model;
Fig. 4 is influent stream window and go out to flow window and be located at the third structural representation on stator in the utility model;
Fig. 5 is influent stream window and go out to flow window and be located at the 4th kind of structural representation on stator in the utility model;
Fig. 6 is influent stream window and go out to flow window and be located at a kind of structural representation on side plate in the utility model;
Fig. 7 is influent stream window and go out to flow window and be located at the second structural representation on side plate in the utility model;
Fig. 8 is a kind of structural representation that the utility model centre rib is combined with cylindrical spring;
Fig. 9 is a kind of structural representation that the utility model centre rib is combined with coil component spring;
Figure 10 is a kind of structural representation of limit stoper in the utility model;
Figure 11 is the another kind of structural representation of limit stoper in the utility model;
Figure 12 is a kind of structural representation of centering device in the utility model;
Figure 13 is a kind of structural representation that in the utility model, film forming groove is connected with aperture;
In figure: 1, radial groove, 2, rotor, 3, blade, 4, rising section, 5, decline section, 6, stator, 7, side plate, 8, raceway, 9, roll body, 10, influent stream window, 11, go out to flow window, 12, fluid operating chamber, 13, film forming groove, 14, aperture, 15, arc groove structure, 16, borehole structure, 17, rib, 18, spring, 19, limit stoper, 20, centering device, 21, groove, 22, positioning ball, 23, retaining spring, 24, mounting groove.
Embodiment
Also by reference to the accompanying drawings the technical solution of the utility model is described in further detail below by specific embodiment.
Embodiment 1:
In the embodiment shown in fig. 1, a kind of low wearing and tearing hydraulic machinery, comprise the rotor 2 with some radial grooves 1, be slidably arranged in the some blades 3 in each radial groove 1, be arranged on the stator 6 that the outside and internal surface of rotor 2 is along the circumferential direction provided with at least one rising section 4 and at least one decline section 5, be located at the side plate 7 at stator 6 and rotor 2 two ends, the end face that blade 3 outer end contacts with stator 6 internal surface is provided with raceway 8, roll body 9 is movably set with in raceway 8, there is between roll body 9 and raceway 8 fluid lubrication film, roll body face bulged blade front-end face, blade roll body face when stretching out of sliding contacts with stator Nei Biaonei rolling friction, stator inner surface rising section 4 is provided with influent stream window 10, stator inner surface decline section 5 is provided with out stream window 11, rotor 2 periphery, stator 6 internal surface, adjacent blades 3 and roll body 9, fluid operating chamber 12 is formed between side plate 7, be positioned at rising section fluid operating chamber 12 to communicate with influent stream window 10, be positioned at decline section fluid operating chamber 12 and go out to flow window 11 and communicate.
Influent stream window 10 or go out to flow the two ends that window 11 is arranged on stator 6, two ends window can independence or the setting (see Fig. 2, Fig. 3) that is interconnected, influent stream window 10 and go out to flow window 11 and be respectively low-pressure fluid window or high-pressure liquid window.During for pump, influent stream window is low-pressure fluid window, and going out to flow window is high-pressure liquid window, contrary for side during motor.
Roll body 9 is cylindrical body, raceway 8 and cylinder engagement are arranged to arc structure, and the bottom of raceway 8 is provided with film forming groove 13(vertically and sees Figure 12), film forming groove 13 is shallow slot, blade 3 is radially provided with the aperture 14 being communicated with film forming groove 13, the lower end of aperture 14 communicates with blade cavity of resorption or fluid chamber.Make pressure fluid be communicated with film forming groove through aperture, make to form better fluid film layer between roll body cylindrical body and raceway, Optimization Work performance.
Embodiment 2:
In the embodiment shown in fig. 4, a kind of low wearing and tearing hydraulic machinery, comprise the rotor 2 with some radial grooves 1, be slidably arranged in the some blades 3 in each radial groove 1, be arranged on the stator 6 that the outside and internal surface of rotor 2 is along the circumferential direction provided with at least one rising section 4 and at least one decline section 5, be located at the side plate 7 at stator 6 and rotor 2 two ends, the end face that blade 3 outer end contacts with stator 6 internal surface is provided with raceway 8, roll body 9 is movably set with in raceway 8, there is between roll body 9 and raceway 8 fluid lubrication film, roll body face bulged blade front-end face, blade roll body face when stretching out of sliding contacts with stator Nei Biaonei rolling friction, stator inner surface rising section 4 is provided with influent stream window 10, stator inner surface decline section 5 is provided with out stream window 11, rotor 2 periphery, stator 6 internal surface, adjacent blades 3 and roll body 9, fluid operating chamber 12 is formed between side plate 7, be positioned at rising section fluid operating chamber 12 to communicate with influent stream window 10, be positioned at decline section fluid operating chamber 12 and go out to flow window 11 and communicate.
Influent stream window 10 or go out to flow centre and the end positions that window 11 is arranged on stator 6, influent stream window 10 or go out to flow window 11 and be provided with three that are interconnected, influent stream window 10 and go out to flow window 11 and be respectively low-pressure fluid window or high-pressure liquid window.During for pump, influent stream window is low-pressure fluid window, and going out to flow window is high-pressure liquid window, contrary for side during motor.This embodiment's Applicable scope is in the larger hydraulic machinery of discharge capacity.
Roll body 9 is cylindrical body, raceway 8 and cylinder engagement are arranged to arc structure, and the bottom of raceway 8 is provided with film forming groove 13 vertically, and film forming groove 13 is shallow slot, blade 3 is radially provided with the aperture 14 being communicated with film forming groove 13, the lower end of aperture 14 communicates with blade cavity of resorption or fluid chamber.Make pressure fluid be communicated with film forming groove through aperture, make to form better fluid film layer between roll body cylindrical body and raceway, Optimization Work performance.
Embodiment 3:
In the embodiment shown in fig. 5, its technological scheme is substantially the same manner as Example 1, and difference is: influent stream window 10 or go out to flow window 11 and be provided with separate three, and this embodiment is applicable to the hydraulic machinery of lower pressure fluid window.
Embodiment 4:
In the embodiment shown in fig. 6, a kind of low wearing and tearing hydraulic machinery, comprise the rotor 2 with some radial grooves 1, be slidably arranged in the some blades 3 in each radial groove 1, be arranged on the stator 6 that the outside and internal surface of rotor 2 is along the circumferential direction provided with at least one rising section 4 and at least one decline section 5, be located at the side plate 7 at stator 6 and rotor 2 two ends, the end face that blade 3 outer end contacts with stator 6 internal surface is provided with raceway 8, roll body 9 is movably set with in raceway 8, there is between roll body 9 and raceway 8 fluid lubrication film, roll body face bulged blade front-end face, blade roll body face when stretching out of sliding contacts with stator Nei Biaonei rolling friction, side plate 7 end face of stator inner surface rising section 4 correspondence is provided with influent stream window 10, side plate 7 end face of stator inner surface decline section 5 correspondence is equipped with out stream window 11, rotor 2 periphery, stator 6 internal surface, adjacent blades 3 and roll body 9, fluid operating chamber 12 is formed between side plate 7, be positioned at rising section fluid operating chamber 12 to communicate with influent stream window 10, be positioned at decline section fluid operating chamber 12 and go out to flow window 11 and communicate.
Influent stream window 10 is the position that many arc groove structures 15 are arranged on that side plate 7 corresponds to stator rising section and decline section with going out to flow window 11, and the groove width of arc groove structure 15 is less than the end arc diameter of roll body 9.
Embodiment 5:
In the embodiment shown in fig. 7, substantially identical with the scheme in embodiment 4, difference is: influent stream window 10 is the position that uniform multiple borehole structures 16 are arranged on that side plate 7 corresponds to stator rising section and decline section with going out to flow window 11, and the aperture of borehole structure 16 is less than roll body 9 end arc diameter.
Be designed to the influent stream window of the forms such as many arc groove structures or multiple borehole structures or go out to flow window, the Sizes design arc groove structure 15 of blade tip or the window size of multiple borehole structure 16 is stretched out according to roll body cylindrical body, make cylinder in its range of movement, its end not play in window, to ensure normal work.
Embodiment 6:
In the embodiment shown in fig. 8, this technological scheme and embodiment 4 basically identical, difference is: influent stream window 10 and go out to flow window 11 and arrange rib 17 near between rotor 2 side and stator 6 internal surface on side plate 7, spring 18 is provided with below blade 3, spring 18 below blade is cylindrical spring, when adopting cylindrical spring, cylindrical spring is arranged on blade bottom surface or blade end positions.
Embodiment 7:
In the embodiment shown in fig. 9, this technological scheme and embodiment 6 basically identical, difference is: influent stream window 10 and go out to flow window 11 and arrange rib 17 near between rotor 2 side and stator 6 internal surface on side plate 7, spring 18 is provided with below blade 3, spring 18 below blade is coil component spring, when adopting coil component spring, spring is arranged on bottom blade two ends.
Adopt the project organization of rib in embodiment 6 and embodiment 7, to ensure that cylinder does not offset in tram motion, and below blade, be provided with spring, cylinder is remained within the scope of rib.When using cylindrical spring, spring is contained in blade bottom surface or blade end positions.Also can use coil component spring, spring can be located at place or other positions, two ends bottom blade two ends.
Embodiment 8:
In the embodiment shown in Figure 10, Figure 11, substantially identical with the technological scheme in embodiment 1 or embodiment 4, difference is: the outside two ends of blade 3 arrange the limit stoper 19 being mechanically connected to blade, and the height of limit stoper 19 is lower than roll body 9 outer end circular arc peak.Cylinder is made to remain on design attitude motion.Limit stoper height is no more than column top, to ensure cylinder and stator inner surface good contact.Limit stoper is mechanically connected with blade.
Embodiment 9:
In embodiment in fig. 13, substantially identical with the technological scheme in embodiment 1 or embodiment 4, difference is: blade 3 outer end vertically middle part arranges centering device 20, roll body 9 vertically middle part is provided with groove 21 corresponding to centering device 20, and groove 21 is equipped with centering device 20 and contacts with centering device 20.
Centering device 20 comprises positioning ball 22 and retaining spring 23, blade 3 is provided with mounting groove 24, it is inner that retaining spring 23 is arranged on mounting groove 24, the upper end matching with the groove 21 on roll body 9 that positioning ball 22 is arranged on retaining spring 23 contacts, and the groove depth of groove 21 is less than positioning ball 1/22nd 3 spherical crown height.Below blade positioning ball, retaining spring is housed, to guarantee that the groove on the Surface of Sphere of positioning ball and roll body cylindrical body has good contact.Centering device adopts the positioning ball of spheroidal, to guarantee that roll body cylindrical body moves in tram.It is more shallow that groove on blade is arranged, and avoids active chamber fluid to leak too much.
Low wearing and tearing hydraulic machinery described in above-described embodiment, rotatable cylindrical body roll body is installed by the front end stretching to stator inner surface at blade, be shaped with influent stream window on stator or on side plate and go out to flow window, good fluid lubrication film is formed between the raceway on cylindrical body roll body and blade, also rib can be set between side plate and stator inner surface, to ensure that cylindrical body does not offset in tram motion, and below blade, be provided with spring, cylindrical body is remained within the scope of rib.When using cylindrical spring, spring is contained in blade bottom surface or blade end positions.Also can use coil component spring, spring can be located at place or other positions, two ends bottom blade two ends.
Influent stream window or go out to flow window and can be designed to the forms such as many arc groove structures or multiple borehole structures, and according to the Sizes design strip arc groove structure of the part of cylindrical body protrusion or the size of multiple poroid borehole structure window, make cylindrical body in its range of movement, cylindrical end not play in window, to ensure normal work.
By mechanical connection manner, blade exterior two ends are provided with limit stoper, the height of limit stoper is lower than roll body outer end circular arc peak.The setting of limit stoper can make cylindrical body remain on design attitude motion.Limit stoper height is no more than the part that cylindrical body protrudes, to ensure that cylindrical body and stator inner surface have good contact.
Blade outer end vertically middle part arranges centering device, to guarantee that cylindrical body moves in tram.It is more shallow that groove is arranged, and is in order to avoid active chamber fluid leaks too much.Affect the normal work of hydraulic machinery.
In order to increase the formation of the fluid film between cylindrical body and raceway further, be provided with film forming groove vertically in the bottom of blade raceway, blade is radially provided with the aperture being communicated with film forming groove, the lower end of aperture communicates with blade cavity of resorption or other fluid chamber.Make pressure fluid be communicated with film forming groove through aperture by aperture, make between cylindrical body and raceway, to form better fluid film layer, Optimization Work performance.
This low wearing and tearing hydraulic machinery, cylindrical body remains at the position of blade raceway and side plate setting, and to ensure that it has reliable and stable work, cylindrical body roll body and stator inner surface then form the rolling friction of low wearing and tearing, improve product performance, improve product reliability and life-span.
This low wearing and tearing hydraulic machinery, can be widely used in oil hydraulic pump, oil hydraulic motor, and also both can make pump and also do motor use, using scope is extensive, Be very effective.
Claims (10)
1. one kind low wearing and tearing hydraulic machinery, comprise the rotor (2) with some radial grooves (1), be slidably arranged in the some blades (3) in each radial groove (1), be arranged on the stator (6) that the outside and internal surface of rotor (2) is along the circumferential direction provided with at least one rising section (4) and at least one decline section (5), be located at the side plate (7) at stator (6) and rotor (2) two ends, it is characterized in that: the end face that described blade (3) outer end contacts with stator (6) internal surface is provided with raceway (8), roll body (9) is movably set with in raceway (8), between roll body (9) and raceway (8), there is fluid lubrication film, roll body face bulged blade front-end face, blade (3) roll body face when stretching out of sliding contacts with stator Nei Biaonei rolling friction, stator inner surface rising section (4) or side plate (7) end face corresponding position are provided with influent stream window (10), stator inner surface decline section (5) or side plate (7) end face corresponding position are provided with out stream window (11), rotor outer circle face, stator inner surface, adjacent blades (3) and roll body (9), fluid operating chamber (12) is formed between side plate (7), be positioned at rising section fluid operating chamber (12) to communicate with influent stream window (10), be positioned at decline section fluid operating chamber (12) and go out to flow window (11) and communicate.
2. the low wearing and tearing hydraulic machinery of one according to claim 1, it is characterized in that: influent stream window (10) and go out to flow two ends or the neutral position that window (11) is arranged on stator (6), influent stream window (10) and go out to flow window (11) and be respectively low-pressure fluid window or high-pressure liquid window.
3. the low wearing and tearing hydraulic machinery of one according to claim 2, it is characterized in that: influent stream window (10) and go out to flow window (11) independence or be interconnected to be arranged at stator (6) two ends, or influent stream window (10) and go out to flow window (11) and be provided be interconnected multiple, or influent stream window (10) and go out to flow window (11) and be provided with separate multiple.
4. the low wearing and tearing hydraulic machinery of one according to claim 1 or 2 or 3, it is characterized in that: influent stream window (10) and go out to flow window (11) and be arranged on position side plate corresponding to stator rising section (4) and decline section (5) in many arc groove structures (15), and the groove width of arc groove structure (15) is less than the end arc diameter of roll body (9).
5. the low wearing and tearing hydraulic machinery of one according to claim 1 or 2 or 3, it is characterized in that: influent stream window (10) and go out to flow window (11) and be arranged on position side plate corresponding to stator rising section (4) and decline section (5) in uniform multiple borehole structures (16), and the aperture of borehole structure (16) is less than roll body end arc diameter.
6. the low wearing and tearing hydraulic machinery of one according to claim 1 or 2 or 3, it is characterized in that: influent stream window (10) and go out to flow window (11) near arranging rib (17) between rotor side and stator inner surface on side plate, spring (18) is provided with below blade, spring below blade is cylindrical spring or coil component spring, when adopting cylindrical spring, cylindrical spring is arranged on blade bottom surface or blade end positions, and when adopting coil component spring, spring is arranged on bottom blade two ends.
7. the low wearing and tearing hydraulic machinery of one according to claim 1 or 2 or 3, it is characterized in that: the anterior two ends of blade are provided with the limit stoper (19) that machinery type is connected to blade, and the height of described limit stoper (19) is lower than roll body (9) outer end circular arc peak.
8. the low wearing and tearing hydraulic machinery of one according to claim 1 or 2 or 3, it is characterized in that: vane nose vertically middle part arranges centering device (20), roll body (9) vertically middle part is provided with groove (21) corresponding to centering device, and described groove (21) and centering device (20) are equipped with.
9. the low wearing and tearing hydraulic machinery of one according to claim 8, it is characterized in that: described centering device (20) comprises positioning ball (22) and retaining spring (23), described blade is provided with mounting groove (24), it is inner that described retaining spring (23) is arranged on mounting groove (24), and the upper end matching with the groove (21) on roll body that described positioning ball (22) is arranged on retaining spring (23) contacts.
10. the low wearing and tearing hydraulic machinery of one according to claim 1 or 2 or 3, it is characterized in that: roll body (9) is cylindrical body, raceway (8) and cylinder engagement are arranged to arc structure, the bottom of raceway (8) is provided with film forming groove (13) vertically, described film forming groove (13) is shallow slot, blade is radially provided with the aperture (14) being communicated with film forming groove, the lower end of aperture (14) communicates with blade cavity of resorption or fluid chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420333076.1U CN204041445U (en) | 2014-06-23 | 2014-06-23 | A kind of low wearing and tearing hydraulic machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420333076.1U CN204041445U (en) | 2014-06-23 | 2014-06-23 | A kind of low wearing and tearing hydraulic machinery |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104179679A (en) * | 2014-06-23 | 2014-12-03 | 胡凯 | Low-abrasion hydraulic machine |
| CN108213306A (en) * | 2016-12-15 | 2018-06-29 | 李富申 | What a kind of swager used is servo-actuated low friction tup |
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2014
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104179679A (en) * | 2014-06-23 | 2014-12-03 | 胡凯 | Low-abrasion hydraulic machine |
| CN108213306A (en) * | 2016-12-15 | 2018-06-29 | 李富申 | What a kind of swager used is servo-actuated low friction tup |
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