CN103122818A - Stator and motor - Google Patents
Stator and motor Download PDFInfo
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- CN103122818A CN103122818A CN2013100340899A CN201310034089A CN103122818A CN 103122818 A CN103122818 A CN 103122818A CN 2013100340899 A CN2013100340899 A CN 2013100340899A CN 201310034089 A CN201310034089 A CN 201310034089A CN 103122818 A CN103122818 A CN 103122818A
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- sections
- stator
- small arc
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Abstract
The invention discloses a stator and a motor, and belongs to the field of motors. A curve comprises a plurality of sections of large circular arcs, a plurality of sections of small circular arcs and a plurality of sections of transition curves. The plurality of sections of large circular arcs are arranged in an evenly-spaced mode, the plurality of sections of large circular arcs and the plurality of sections of small circular arcs are arranged at intervals in an alternant mode along the circumferential direction, and each large circular arc and each small circular arc which are adjacent are connected through one of the transition curves. The motor is provided with the stator. According to the stator and the motor, displacement and output torque of the motor are increased due to a plurality of fan-shaped areas formed by enclosure of the curve and the diameter differences of the large circular arcs and the small circular arcs in the stator, namely a plurality of working oil chambers of the motor, demands on large-displacement motors which present mechanical equipment needs to be matched with can be met, and besides, the structure is compact. According to the stator with the curve and the motor with the plurality of working oil chambers, the demands on the large-displacement motors which the present mechanical equipment needs to be matched with can be met.
Description
Technical field
The present invention relates to field of motors, particularly a kind of stator and motor.
Background technique
The low-speed big vane motor, can directly be connected with operation mechanism because rotating speed is low as the hydraulic system executive component, does not need to install speed reducer, and driver is greatly simplified, and therefore, is widely used in marine machinery and ore machinery.
The low-speed big vane motor comprises: stator, rotor, blade and preloading spring, in the cavity that stator surrounds, blade is along the radial arrangement of rotor, the root of blade is equipped with preloading spring, when be used for guaranteeing the motor starting, blade is close to the stator curve surface, guarantees that motor can normal start-up and operation after pressure oil passes into.The curve of the internal surface of existing sliding-vane motor stator is comprised of with four sections transition curves that are connected four arcs four arcs mostly, this curve fitting blade becomes two working oil chambers with the spatial separation of stator interior, wherein, four arcs comprises that two sections radiuses are symmetrical orthodrome and two sections symmetrical small arc-shapeds that radius is r of R.
In realizing process of the present invention, the inventor finds that there is following problem at least in prior art:
In the situation that before and after blade, pressure reduction is constant, the output torque of vane motor is the discharge capacity decision by motor.Strengthen poor that the discharge capacity of motor can be by R and r in the internal surface curve that increases stator, namely increase lift R-r and solve, yet lift R-r too Da Yi causes blade broken, but also the top of blade and the stator inner surface phenomenon of coming to nothing easily occurs.
Summary of the invention
For the discharge capacity that improves motor and the problem of output torque, the embodiment of the present invention provides a kind of stator and motor.Described technological scheme is as follows:
On the one hand, the invention provides a kind of stator, the internal surface of described stator is curve, described curve comprises: some sections orthodromes, some sections small arc-shapeds and some sections transition curves, the quantity of described small arc-shaped and the quantity of described orthodrome and described small arc-shaped quantity sum, described some sections orthodromes and described some sections small arc-shapeds arrange along circumferential alternate intervals, adjacent described orthodrome be connected small arc-shaped and connect by one section described transition curve.
Preferably, described orthodrome is three sections, and described small arc-shaped is three sections, and described transition curve is six sections.
Particularly, three sections described orthodromes and three sections described small arc-shapeds are isocentric circular arc.
Particularly, the arc length of three sections described orthodromes is equal, and the arc length of three sections described small arc-shapeds equates.
Particularly, six sections described transition curves are tangent with three sections described orthodromes and three sections described small arc-shapeds respectively.
Particularly, described transition curve is for waiting deceleration curves such as acceleration.
Particularly, described transition curve forms according to following formula:
Wherein, described R is the radius of described three sections orthodromes, and described r is the radius of described three sections small arc-shapeds, and is described
Be the central angle of described three sections orthodromes and described three sections small arc-shapeds, described α is the central angle of described six sections transition curves
Further, the central angle of described transition curve is less than the central angle of described orthodrome.
Further, the central angle of described transition curve is 36 °, and the central angle of described orthodrome is 24 °.
On the other hand, the invention provides a kind of motor, comprise stator, be located at blade, rotor and spring in described stator, described stator is above-mentioned stator, described blade is along the circumferential arrangement of described rotor, and described blade extends radially outwardly along described rotor, and described spring is located at an end of described blade and the joint of described rotor, and the other end of described blade is close to the internal surface of described stator.
the beneficial effect that the technological scheme that the embodiment of the present invention provides is brought is: the inner curve of the stator that the embodiment of the present invention provides is by some sections orthodromes, some sections small arc-shapeds and some sections transition curves are formed by connecting, wherein, the sectorial area that two end points of the sectorial area that the two ends of orthodrome consist of to the center of circle and small arc-shaped consist of to the center of circle poor, a plurality of working oil chambers for motor, under the identical condition of arc diameter, compare with the stator inner curve that can only form at most two working oil chambers in prior art, the present invention can increase discharge capacity and the output torque of motor, can satisfy current machinery needs the demand of the motor of supporting larger discharge capacity, and structure is compacter.
Description of drawings
In order to be illustrated more clearly in the technological scheme in the embodiment of the present invention, during the below will describe embodiment, the accompanying drawing of required use is done to introduce simply, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the inner curve structural representation of the stator that provides of the embodiment of the present invention one;
Fig. 2 is the sector region structural representation that the inner curve of the stator that provides of the embodiment of the present invention one forms.
In figure: the two ends of the radius of 1-orthodrome, 2-transition curve, 3-small arc-shaped, 4-sector region, R-orthodrome, the radius of r-small arc-shaped, α-transition curve to the angle between the line in the center of circle of orthodrome,
The central angle of-orthodrome.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, embodiment of the present invention is described further in detail below in conjunction with accompanying drawing.
Embodiment one
the embodiment of the present invention provides a kind of stator, the internal surface of this stator is curve, as illustrated in fig. 1 and 2, this curve comprises: some sections orthodromes 1, some sections small arc-shapeds 2 and some sections transition curves 3, the quantity of small arc-shaped 2 equates with the quantity of orthodrome 1, the quantity of transition curve 3 is orthodrome 1 and small arc-shaped 2 quantity sums, some sections orthodromes 1 are equidistantly arranged, some sections small arc-shapeds 3 equidistantly are arranged in respectively in the gap of some sections orthodromes 2, some sections orthodromes 2 connect by some sections transition curves 4 respectively with the section of being connected small arc-shaped 3, wherein, some fingers are more than three.
Preferably, in the present embodiment, orthodrome is three sections, and small arc-shaped is three sections, and transition curve is six sections.Need to prove, in embodiments of the present invention, the quantity of orthodrome and small arc-shaped is 3, yet, in other embodiments, can for 4 or 5, not be restricted at this yet.
Particularly, three sections orthodromes 1 and three sections small arc-shapeds 3 are isocentric circular arc.
Particularly, the arc length of three sections orthodromes 1 is equal, and the arc length of three sections small arc-shapeds 3 equates.
Particularly, six sections transition curves 2 are tangent with three sections orthodromes 1 and three sections small arc-shapeds 3 respectively.
Particularly, transition curve 2 such as is preferably at the deceleration curves such as acceleration, and the acceleration that the radius vector ρ of these transition curve 2 correspondences increases is definite value.Transition curve 2 can also or be revised Archimedes spiral stator inner curve etc. for high order type stator inner curve.
Particularly, transition curve 2 forms according to following formula:
Wherein, R is the radius of three sections orthodromes 1, and r is the radius of three sections small arc-shapeds 3, wherein R〉r, α is the central angle of three sections orthodromes 1 and three sections small arc-shapeds 3, α is that the two ends of six sections transition curves 2 are to the angle between the line in the center of circle of orthodrome 1.
Further, the central angle of orthodrome 1 and small arc-shaped 3
To the angle α between the line in the center of circle of orthodrome 1, be used for reducing the pulsation of motor output torque greater than the two ends of transition curve 2.
Further, the two ends of transition curve 2 are 36 ° to the angle α between the line in the center of circle of orthodrome 1, the central angle of orthodrome 1
It is 24 °.
In a specific implementation of the present embodiment, R and r can value R=250mm, r=230mm, and at this moment, the equation of corresponding stator inner curve is:
In another specific implementation of the present embodiment, all right value R=180mm of R and r, r=170mm, at this moment, the equation of corresponding stator inner curve is:
the stator that the embodiment of the present invention provides, the internal surface of this stator is curve, and by the orthodrome of this curve and poor three sector regions 4 that surround of diameter of small arc-shaped, be three working oil chambers of motor, under the identical condition of arc diameter, compare with the stator inner curve that can only form at most two working oil chambers in prior art, stator with stator inner curve provided by the invention can increase the working oil chamber of a motor, cause discharge capacity and the output torque of motor to increase 1.5 times, can satisfy current machinery needs the demand of the motor of supporting larger discharge capacity, and structure is compacter.
Embodiment two
The embodiment of the present invention provides a kind of motor, comprises stator, is located at blade, rotor and spring in stator, the stator that its stator provides for the embodiment of the present invention one.
Particularly, the quantity of blade is 12, blade is along the circumferential arrangement of rotor, and blade extends radially outwardly along rotor, spring is located at an end of blade and the joint of rotor, and the other end of blade is close to the internal surface of stator, due to blade while output torque, so the output torque pulsation of motor is little.Motor provided by the invention comprises the stator that embodiment one provides, the inner curve of the stator that embodiment one provides is by poor three sector regions 4 that surround of the diameter of three sections orthodromes and three sections small arc-shapeds, be three working oil chambers of motor, the blade that its curve can coordinate motor becomes three working oil chambers with the spatial separation of stator interior.
the spring force that is subject to due to the root of blade, radial frictional force between the centrifugal force that produces during blade rotary and blade and rotor, in order to ensure the normal start-up and operation of motor energy after pressure oil passes into, making a concerted effort that above-mentioned blade is suffered need be greater than the inertial force of transition curve accelerating process generation, and for the low-speed big vane type motor, because rotating speed is lower, therefore the centrifugal force of blade rotary motion generation is less, it is film lubrication between blade and rotor, so, frictional force is also less, thereby, the spring force size that the root of blade is subject to is determined by the size of the acceleration of transition curve.Because high order type stator inner curve and the characteristic of revising its acceleration such as Archimedes spiral stator inner curve all change, and maximum value all greater than etc. the deceleration curves such as acceleration.therefore, for the low-speed big vane type motor, wearing and tearing for the negative camber that reduces vane tip and stator, the deceleration curves such as acceleration such as the transition curve employing of the inner curve of the stator of motor are preferably, can improve the life-span of motor, reduce root of blade and be subjected to fatigue ruption, overcome in the prior art in order to guarantee that motor has good sealability, need spring to have larger spring force, and periodic alternate load very easily causes spring to rupture because of tired, make blade can't compress the stator negative camber and leak, the problem that causes the motor volumetric efficiency to reduce.
The above is only preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, is equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. stator, the internal surface of described stator is curve, it is characterized in that, described curve comprises: some sections orthodromes, some sections small arc-shapeds and some sections transition curves, the quantity of described small arc-shaped equates with the quantity of described orthodrome, the quantity of described transition curve is described orthodrome and described small arc-shaped quantity sum, and described some sections orthodromes and described some sections small arc-shapeds arrange along circumferential alternate intervals, adjacent described orthodrome be connected small arc-shaped and connect by one section described transition curve.
2. stator according to claim 1, is characterized in that, described orthodrome is three sections, and described small arc-shaped is three sections, and described transition curve is six sections.
3. stator according to claim 2, is characterized in that, three sections described orthodromes and three sections described small arc-shapeds are isocentric circular arc.
4. stator according to claim 3, is characterized in that, the arc length of three sections described orthodromes is equal, and the arc length of three sections described small arc-shapeds equates.
5. stator according to claim 2, is characterized in that, six sections described transition curves are tangent with three sections described orthodromes and three sections described small arc-shapeds respectively.
6. stator according to claim 2, is characterized in that, described transition curve is for waiting deceleration curves such as acceleration.
7. stator according to claim 6, is characterized in that, described transition curve forms according to following formula:
Wherein, described R is the radius of described three sections orthodromes, and described r is the radius of described three sections small arc-shapeds, and is described
Be the central angle of described three sections orthodromes and described three sections small arc-shapeds, described α is that the two ends of described transition curve are to the angle between the line in the center of circle of described orthodrome.
8. stator according to claim 7, is characterized in that, the two ends of described transition curve are to the central angle of the angle between the line in the center of circle of described orthodrome less than described orthodrome.
9. stator according to claim 8, is characterized in that, the two ends of described transition curve are 36 ° to the angle between the line in the center of circle of described orthodrome, and the central angle of described orthodrome is 24 °.
10. motor, comprise stator, be located at blade, rotor and spring in described stator, it is characterized in that, described stator is as the described stator of claim 1-9 any one, described blade is along the circumferential arrangement of described rotor, and described blade extends radially outwardly along described rotor, and described spring is located at an end of described blade and the joint of described rotor, and the other end of described blade is close to the internal surface of described stator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100340899A CN103122818A (en) | 2013-01-29 | 2013-01-29 | Stator and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100340899A CN103122818A (en) | 2013-01-29 | 2013-01-29 | Stator and motor |
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| Publication Number | Publication Date |
|---|---|
| CN103122818A true CN103122818A (en) | 2013-05-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100340899A Pending CN103122818A (en) | 2013-01-29 | 2013-01-29 | Stator and motor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108119297A (en) * | 2017-11-14 | 2018-06-05 | 武汉船用机械有限责任公司 | A kind of hydraulic motor casing and hydraulic motor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85103606A (en) * | 1985-05-16 | 1986-12-10 | 杨德贵 | Inscribe orthodrome unloading vane-type pump (motor) |
| CN86206061U (en) * | 1986-08-15 | 1987-06-10 | 杨斌 | Stator for double-acting vaned oil pump |
| GB2358675A (en) * | 2000-01-27 | 2001-08-01 | Ross Finlay Malcolm Tyson | A rotary engine pump or motor |
| WO2010017700A1 (en) * | 2008-08-12 | 2010-02-18 | Hu Dongwen | Vane pump/motor |
-
2013
- 2013-01-29 CN CN2013100340899A patent/CN103122818A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85103606A (en) * | 1985-05-16 | 1986-12-10 | 杨德贵 | Inscribe orthodrome unloading vane-type pump (motor) |
| CN86206061U (en) * | 1986-08-15 | 1987-06-10 | 杨斌 | Stator for double-acting vaned oil pump |
| GB2358675A (en) * | 2000-01-27 | 2001-08-01 | Ross Finlay Malcolm Tyson | A rotary engine pump or motor |
| WO2010017700A1 (en) * | 2008-08-12 | 2010-02-18 | Hu Dongwen | Vane pump/motor |
Non-Patent Citations (7)
| Title |
|---|
| 候训波等: "叶片泵定子曲线及叶片对流量脉动的影响", 《液压与气动》, no. 8, 15 August 2008 (2008-08-15) * |
| 康铧: "定量叶片泵定子过渡曲线的加工", 《二汽科技通讯》, no. 1, 2 March 1975 (1975-03-02) * |
| 胡泽滋: "双作用叶片泵定子过渡曲线分析", 《贵州工学院学报》, no. 2, 2 July 1982 (1982-07-02) * |
| 费千: "《船舶辅机》", 31 July 2010, article "叶片式低速液压马达", pages: 124-126 * |
| 那焱青等: "叶片泵过渡曲线辨识问题研究", 《农业机械学报》, vol. 37, no. 2, 25 February 2006 (2006-02-25) * |
| 雷亚勇等: "双作用叶片泵噪声的产生机理和降噪分析", 《机床与液压》, vol. 35, no. 1, 15 January 2007 (2007-01-15) * |
| 马金河等: "基于数控铣床的双作用叶片泵定子内表面磨削加工", 《机床与液压》, vol. 40, no. 20, 28 October 2012 (2012-10-28) * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108119297A (en) * | 2017-11-14 | 2018-06-05 | 武汉船用机械有限责任公司 | A kind of hydraulic motor casing and hydraulic motor |
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