CN104653457A - Automobile steering pump rotor - Google Patents
Automobile steering pump rotor Download PDFInfo
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- CN104653457A CN104653457A CN201410706617.5A CN201410706617A CN104653457A CN 104653457 A CN104653457 A CN 104653457A CN 201410706617 A CN201410706617 A CN 201410706617A CN 104653457 A CN104653457 A CN 104653457A
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Abstract
The invention provides an automobile steering pump rotor which belongs to the technical field of steering pumps, and is used for solving the problem that an existing steering pump rotor is poor in stability. The automobile steering pump rotor comprises a cylindrical body, wherein the middle of the body is provided with a through hole which is coaxial with the body and runs through the body axially; the body is provided with a plurality of piston through grooves which are around the periphery of the through hole and axially run through the body; the piston through grooves are composed of blade grooves and transition grooves; bodies of the blade grooves run from the top surfaces to the bottom surface and lateral surfaces; bodies of the transition grooves run from the top surfaces to the bottom surfaces and are communicated with the blade grooves, and the diameters of the transition grooves are greater than the widths of the blade grooves; two end surfaces of the bodies form round grooves; the transition grooves are formed in the round grooves. The automobile steering pump rotor has the advantages of structure stability and long service life.
Description
Technical field
The invention belongs to steering pump technical field, particularly a kind of motor turning pump rotor.
Background technique
Automobile steering pump generally comprises the parts such as pump case, rotor, blade, cover plate, suction interface, back leakage connection.Rotor clockwise rotates, and confined space volume first changes from small to big, and bleeds via air extraction connector, and when rotor continues to rotate, confined space from large to small, then is vented via back leakage connection.
Generally on rotor, offer blade groove, blade groove is mainly used in placing blade, shape due to blade is in the form of sheets, if with emery wheel directly machining blade groove on rotor body, the bottom of blade groove is arc surface, such blade directly cannot touch the end during fore and aft motion in blade groove, namely cannot directly and blade groove bottom connection touch, blade traveled distance is made to be less than theoretical stroke, situation about having some setbacks when causing rotor to rotate in stator, there is the phenomenon that blade gets stuck when contacting with stator inner wall, causing the problem that steering pump is operationally unstable.
Summary of the invention
The object of the invention is to there are the problems referred to above for existing technology, propose the motor turning pump stator of a kind of stabilized structure, long service life.
Object of the present invention realizes by following technical proposal: a kind of motor turning pump rotor, comprise cylindrical body, it is characterized in that, portion offers with body concentric and the through hole of axial through body in the body, body offers and is multiplely looped around bore periphery and the piston groove of axial through body, described piston groove is made up of blade groove and transition slot, blade groove by body end face to bottom surface and side through, transition slot is through and be communicated with blade groove to bottom surface by body end face, and the diameter of transition slot is greater than the width of blade groove, body both ends of the surface are all formed with circular groove, described transition slot is positioned at circular groove.
In above-mentioned motor turning pump rotor, it is 10 ° that the sidewall of circular groove is connected on body end face and its angle of inclination obliquely by circular groove bottom surface.
In above-mentioned motor turning pump rotor, body also offers the calibration hole of axially through body, described calibration hole is positioned at the centre of two adjacent piston grooves.
In above-mentioned motor turning pump rotor, the quantity of described piston groove is seven, diameter wherein residing for a piston groove and the angle between the diameter residing for calibration hole are 5.25 °, and with this piston groove for starting point, the angle between adjacent two-piston groove is followed successively by 55.5 °, 51 °, 51 °, 55.5 °, 48 °, 51 °, 48 ° to distribute clockwise.
In above-mentioned motor turning pump rotor, described body is that steel is made and mainly the consisting of (wt.%) of steel: carbon C:0.15 ~ 0.23%; Silicon Si:0.20 ~ 0.45%; Manganese Mn:0.50 ~ 0.72%; Chromium Cr:1.12 ~ 1.55%; Molybdenum Mo:0.15 ~ 0.25%; Iron whiskers 8-12%; Surplus is Fe and inevitable impurity.Iron whiskers is single-crystal iron material, there is good mechanical property, and due to identical with the host element of steel itself, so there is good compatibility with it, extremely effectively can overcome the impact that the lattice in steel, grain boundary defects and impurity, vacancy etc. cause steel performance, play crosslinked metallographic structure, connect defect sturcture and reduce the effect of stress, thus greatly improve the tensile property of material, impact property and yield behavior.
In above-mentioned motor turning pump rotor, described steel composition also comprises graphene oxide (wt.%) 1.5-3.2%.After oxidation processes, graphite oxide still keeps the stratiform structure of graphite, but introduce many oxygen base functional groups on the Graphene monolithic of every one deck, in fact graphene oxide has amphipathic, present hydrophilic to hydrophobic property distribution from graphene platelet edge to central authorities.Therefore, graphene oxide can as interfacial agent Presence of an interface, and reduce the energy between interface.Surface energy can be reduced, thus raising graphene oxide and iron whiskers are in the uniformity of the distribution of material, avoid occurring that local is carried poly-, make the performance more stable uniform of material.
In above-mentioned motor turning pump rotor, after described graphene oxide fully mixes with iron whiskers, with oxygen deprivation hydrogen flame activation 10-20min under hydrogen atmosphere, then add in steel through forging in the steel forging stage via steel surface.By graphene oxide and iron crystalline substance are activated with oxygen deprivation hydrogen flame in hydrogen atmosphere, while active oxidation graphenic surface group activity, the compatibility of the iron whiskers oxidized reduction in surface and steel main body can be avoided and affect doping quality, carry out forging simultaneously and add the effect that can improve interpolation by stating graphene oxide and iron whiskers and play the effect of mutually promoting simultaneously, increase the doping effect to steel by the effect of association, improve the effective depth of process.
Compared with prior art, the present invention has the following advantages:
1, piston groove is made up of blade groove and transition slot, blade groove is mainly used in placing blade, and the effect of transition slot is to facilitate machining blade groove, this is because the shape of blade is in the form of sheets, if with emery wheel directly machining blade groove on rotor body, the bottom of blade groove is arc surface, such blade directly cannot touch the end during fore and aft motion in blade groove, namely cannot directly and blade groove bottom connection touch, blade traveled distance is made to be less than theoretical stroke, situation about having some setbacks when causing rotor to rotate in stator, there is the phenomenon that blade gets stuck when contacting with stator inner wall, cause the problem that steering pump is operationally unstable, by processing transition slot in advance, and then machining blade groove, the bottom of blade groove is served as by transition slot, make blade can fore and aft motion in blade groove freely, ensure that stability when rotor rotates in stator.
2, by the circular groove on body can make this rotor can better with other parts of steering pump with the use of.
3, by the piston groove on calibration hole convenient processing body, because the angle angle between each adjacent two-piston groove is different, therefore first calibration hole is processed man-hour adding, be that reference point processes each piston groove successively again with calibration hole, thus ensure that the precision of each piston groove, improve the yield rate of this rotor.
4, comparatively deep layer is more outstanding for the tensile property of this surface layer, impact property and yield behavior, thus has better working life and mechanical stability, and while raising rotor mechanical performance, having can the cost of strict production control.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
fig. 2it is stereochemical structure of the present invention signal
figure.
In figure, 1, body; 11, through hole; 12, piston groove; 12a, blade groove; 12b, transition slot; 13, calibration hole; 14, circular groove.
Embodiment
Be below specific embodiments of the invention and by reference to the accompanying drawings, technological scheme of the present invention is further described, but the present invention be not limited to these embodiments.
as Fig. 1extremely
fig. 2shown in, this motor turning pump rotor comprises cylindrical body 1, offer in the middle part of body 1 with body 1 concentric and the through hole 11 of axial through body 1, body 1 offers and is multiplely looped around through hole 11 periphery and the piston groove 12 of axial through body 1, described piston groove 12 is made up of blade groove 12a and transition slot 12b, blade groove 12a by body 1 end face to bottom surface and side through, transition slot 12b is through and be communicated with blade groove 12a to bottom surface by body 1 end face, and the diameter of transition slot 12b is greater than the width of blade groove 12a, body 1 both ends of the surface are all formed with circular groove 14, described transition slot 12b is positioned at circular groove 14.
Piston groove 12 is made up of blade groove 12a and transition slot 12b, blade groove 12a is mainly used in placing blade, and the effect of transition slot 12b is to facilitate machining blade groove 12a, this is because the shape of blade is in the form of sheets, if with emery wheel directly machining blade groove 12a on rotor body 1, the bottom of blade groove 12a is arc surface, such blade directly cannot touch the end during fore and aft motion in blade groove 12a, namely cannot directly and blade groove 12a bottom connection touch, blade traveled distance is made to be less than theoretical stroke, situation about having some setbacks when causing rotor to rotate in stator, there is the phenomenon that blade gets stuck when contacting with stator inner wall, cause the problem that steering pump is operationally unstable, by processing transition slot 12b in advance, and then machining blade groove 12a, the bottom of blade groove 12a is served as by transition slot 12b, make blade can fore and aft motion in blade groove 12a freely, ensure that stability when rotor rotates in stator.
Further, the sidewall of circular groove 14 to be connected to obliquely on body 1 end face by circular groove 14 bottom surface and its angle of inclination is 10 °, this structural design make can better with other parts of steering pump with the use of.
Further, body 1 also offers the calibration hole 13 of axially through body 1, calibration hole 13 is positioned at the centre of two adjacent piston grooves 12, the quantity of piston groove 12 is seven, diameter wherein residing for a piston groove 12 and the angle between the diameter residing for calibration hole 13 are 5.25 °, and with this piston groove 12 for starting point, the angle between adjacent two-piston groove 12 is followed successively by 55.5 °, 51 °, 51 °, 55.5 °, 48 °, 51 °, 48 ° to distribute clockwise.By the piston groove 12 on calibration hole 13 convenient processing body 1, because the angle angle between each adjacent two-piston groove 12 is different, therefore calibration hole 13 is first processed man-hour adding, each piston groove 12 is processed successively for reference point again with calibration hole 13, thus ensure that the precision of each piston groove 12, improve the yield rate of this rotor.
Embodiment
In technical solution of the present invention steel during doped with oxygen functionalized graphene, after graphene oxide fully mixes with iron whiskers, in airtight graphite crucible, with oxygen deprivation hydrogen flame activation certain hour under hydrogen atmosphere, this soak time can be selected to comprise the arbitrary value in 10min, 11min, 12min, 13min, 14min, 15min, 16min, 17min, 18min, 19min, 20min and 10-20min atmosphere, then adds in steel through forging in the steel forging stage via steel surface.
Embodiment 1
The composition following (wt.%) of the present embodiment body steel: carbon C:0.15%; Silicon Si:0.25%; Manganese Mn:0.50%; Chromium Cr:1.14%; Molybdenum Mo:0.20%; Iron whiskers 8%; Surplus is Fe and inevitable impurity.Steel tensile strength 1200MPa, yield strength 1100MPa in the present embodiment, elongation at break 8%, the shaping rear sampling 1000 of rotor machining, uses 1000 hours continuously, and rotor surface wearing and tearing are less than 0.1, surperficial no marking distortion.
Embodiment 2
The composition following (wt.%) of the present embodiment body steel: carbon C:0.18%; Silicon Si:0.20%; Manganese Mn:0.60%; Chromium Cr:1.55%; Molybdenum Mo:0.15%; Iron whiskers 10%; Graphene oxide 1.5%, surplus is Fe and inevitable impurity.Steel tensile strength 1250MPa, yield strength 1000MPa in the present embodiment, elongation at break 8%, the shaping rear sampling 1000 of rotor machining, uses 1500 hours continuously, and rotor surface wearing and tearing are less than 0.01 micron, surperficial no marking distortion.
Embodiment 3
The composition following (wt.%) of the present embodiment body steel: carbon C:0.16%; Silicon Si:0.45%; Manganese Mn:0.72%; Chromium Cr:1.12%; Molybdenum Mo:0.25%; Iron whiskers 12%; Graphene oxide 1.7%, surplus is Fe and inevitable impurity.Forge process doping mean depth 0.5mm, steel tensile strength 1200MPa, yield strength 1150MPa in the present embodiment, elongation at break 9%, the shaping rear sampling 1000 of rotor machining, uses 1500 hours continuously, rotor surface wearing and tearing are less than 0.01 micron, surperficial no marking distortion.
Embodiment 4
The composition following (wt.%) of the present embodiment body steel: carbon C:0.23%; Silicon Si:0.30%; Manganese Mn:0.58%; Chromium Cr:1.35%; Molybdenum Mo:0.18%; Iron whiskers 11%; Graphene oxide 3.2%, surplus is Fe and inevitable impurity.Forge process doping mean depth 0.4mm, steel tensile strength 1300MPa, yield strength 1000MPa in the present embodiment, elongation at break 10%, the shaping rear sampling 1000 of rotor machining, uses 1500 hours continuously, rotor surface wearing and tearing are less than 0.01 micron, surperficial no marking distortion.
Embodiment 5
The composition following (wt.%) of the present embodiment body steel: carbon C:0.2%; Silicon Si:0.40%; Manganese Mn:0.70%; Chromium Cr:1.4%; Molybdenum Mo:0.24%; Iron whiskers 9%; Graphene oxide 2.5%, surplus is Fe and inevitable impurity.Forge process doping mean depth 0.5mm, steel tensile strength 1200MPa, yield strength 1150MPa in the present embodiment, elongation at break 9%, the shaping rear sampling 1000 of rotor machining, uses 1500 hours continuously, rotor surface wearing and tearing are less than 0.01 micron, surperficial no marking distortion.
Embodiment 6
The composition following (wt.%) of the present embodiment body steel: carbon C:0.22%; Silicon Si:0.35%; Manganese Mn:0.85%; Chromium Cr:1.25%; Molybdenum Mo:0.23%; Iron whiskers 9.5%; Graphene oxide 3%, surplus is Fe and inevitable impurity.Forge process doping mean depth 0.5mm, steel tensile strength 1200MPa, yield strength 1050MPa in the present embodiment, elongation at break 8%, the shaping rear sampling 1000 of rotor machining, uses 1500 hours continuously, rotor surface wearing and tearing are less than 0.01 micron, surperficial no marking distortion.
The non-limit part of technical scope midrange that this place embodiment protects application claims, equally all in the scope of protection of present invention.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Claims (7)
1. a motor turning pump rotor, comprise cylindrical body, it is characterized in that, portion offers with body concentric and the through hole of axial through body in the body, body offers and is multiplely looped around bore periphery and the piston groove of axial through body, described piston groove is made up of blade groove and transition slot, blade groove by body end face to bottom surface and side through, transition slot is through and be communicated with blade groove to bottom surface by body end face, and the diameter of transition slot is greater than the width of blade groove, body both ends of the surface are all formed with circular groove, described transition slot is positioned at circular groove.
2. motor turning pump rotor according to claim 1, is characterized in that, it is 10 ° that the sidewall of circular groove is connected on body end face and its angle of inclination obliquely by circular groove bottom surface.
3. motor turning pump rotor according to claim 1 and 2, is characterized in that, body also offers the calibration hole of axially through body, and described calibration hole is positioned at the centre of two adjacent piston grooves.
4. motor turning pump rotor according to claim 3, it is characterized in that, the quantity of described piston groove is seven, diameter wherein residing for a piston groove and the angle between the diameter residing for calibration hole are 5.25 °, and with this piston groove for starting point, the angle between adjacent two-piston groove is followed successively by 55.5 °, 51 °, 51 °, 55.5 °, 48 °, 51 °, 48 ° to distribute clockwise.
5. motor turning pump rotor according to claim 1, is characterized in that, described body is that steel is made and mainly the consisting of (wt.%) of steel: carbon C:0.15 ~ 0.23%; Silicon Si:0.20 ~ 0.45%; Manganese Mn:0.50 ~ 0.72%; Chromium Cr:1.12 ~ 1.55%; Molybdenum Mo:0.15 ~ 0.25%; Iron whiskers 8-12%; Surplus is Fe and inevitable impurity.
6. motor turning pump rotor according to claim 5, is characterized in that, described steel composition also comprises graphene oxide (wt.%) 1.5-3.2%.
7. motor turning pump rotor according to claim 6, it is characterized in that, after described graphene oxide fully mixes with iron whiskers, with oxygen deprivation hydrogen flame activation 10-20min under hydrogen atmosphere, then add in steel through forging in the steel forging stage via steel surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410706617.5A CN104653457B (en) | 2014-11-27 | 2014-11-27 | Automobile steering pump rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410706617.5A CN104653457B (en) | 2014-11-27 | 2014-11-27 | Automobile steering pump rotor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104653457A true CN104653457A (en) | 2015-05-27 |
| CN104653457B CN104653457B (en) | 2017-05-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410706617.5A Active CN104653457B (en) | 2014-11-27 | 2014-11-27 | Automobile steering pump rotor |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003074479A (en) * | 2001-08-31 | 2003-03-12 | Unisia Jkc Steering System Co Ltd | Variable displacement pump |
| CN201437774U (en) * | 2009-06-11 | 2010-04-14 | 浙江陀曼精密机械有限公司 | Rolling friction vane pump |
| CN102031460A (en) * | 2009-09-24 | 2011-04-27 | 通用电气公司 | Steam turbine rotor and alloy therefor |
| CN202991482U (en) * | 2012-12-04 | 2013-06-12 | 湖南机油泵股份有限公司 | Blade installation wheel of rotor |
| CN202991480U (en) * | 2012-12-04 | 2013-06-12 | 湖南机油泵股份有限公司 | Rotor of main body pump core |
| CN103314185A (en) * | 2010-12-01 | 2013-09-18 | Itt制造企业有限责任公司 | Sliding vane pump |
-
2014
- 2014-11-27 CN CN201410706617.5A patent/CN104653457B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003074479A (en) * | 2001-08-31 | 2003-03-12 | Unisia Jkc Steering System Co Ltd | Variable displacement pump |
| CN1403711A (en) * | 2001-08-31 | 2003-03-19 | 尤尼西亚Jkc控制系统株式会社 | Variable desplacement pump |
| CN201437774U (en) * | 2009-06-11 | 2010-04-14 | 浙江陀曼精密机械有限公司 | Rolling friction vane pump |
| CN102031460A (en) * | 2009-09-24 | 2011-04-27 | 通用电气公司 | Steam turbine rotor and alloy therefor |
| CN103314185A (en) * | 2010-12-01 | 2013-09-18 | Itt制造企业有限责任公司 | Sliding vane pump |
| CN202991482U (en) * | 2012-12-04 | 2013-06-12 | 湖南机油泵股份有限公司 | Blade installation wheel of rotor |
| CN202991480U (en) * | 2012-12-04 | 2013-06-12 | 湖南机油泵股份有限公司 | Rotor of main body pump core |
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| Publication number | Publication date |
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| CN104653457B (en) | 2017-05-24 |
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