CN104179622A - Braking level stator-rotor assembly provided with sweeping wedge-shaped blades - Google Patents
Braking level stator-rotor assembly provided with sweeping wedge-shaped blades Download PDFInfo
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- CN104179622A CN104179622A CN201410389294.1A CN201410389294A CN104179622A CN 104179622 A CN104179622 A CN 104179622A CN 201410389294 A CN201410389294 A CN 201410389294A CN 104179622 A CN104179622 A CN 104179622A
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- stator vane
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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
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Abstract
The invention provides a braking level stator-rotor assembly provided with sweeping wedge-shaped blades. The braking level fixed rotor assembly comprises a stator and a rotor which are coaxially mounted in a sleeving manner; stator blades and rotor blades are formed in a sweeping manner; all vertical projection lines of first sweeping guide lines and second sweeping guide lines of the stator blades and the rotor blades on an equivalent meridian plane point to a radius; axial heights of the stator blades or rotor blades are equal or increscent gradually from the inside to the outside in a radial direction; circumferential thicknesses of the stator blades or the rotor blades are invariant or increscent gradually from the inside to the outside in a radial direction; the inclined angle of the stator blade and the inclined angle of the rotor blade, on an isodiametric cylindrical surface, are the same in direction, and decrease gradually from the inside to the outside or are being equal. The braking level stator-rotor assembly provided by the invention is big in torque and small in hydraulic loss; if a certain braking level stator-rotor assemblies provided with the sweeping wedge-shaped blades are assembled with a certain amount of turbine stator-rotor assemblies, a turbine drilling tool can be improved obviously in working time, overload ability, and stability and turbine drill footage in a condition of low rotating speed.
Description
Technical field
The present invention relates to the creeping into of field such as the probing in the fields such as oil, rock gas, coal-seam gas, shale gas exploitation or geology, railway, electric power, communication and use down-hole turbodrill, especially scan a Wedge-shaped blade retrostage rotor assembly parts, belong to machinery manufacturing technology field.
Background technique
Turbodrill is commercial Application a kind of down-hole fluid motor the earliest, and its effect is to change the pressure energy of working solution into mechanical energy, drives drill bit to rotate with broken bottom rock.Turbodrill is a kind of mud motor that oilfield is conventional.Because the turbodrill rotating speed consisting of existing multistage turbine rotor assembly parts is too high, bit bearing or tooth wear are too fast, sometimes cause drilling depth and the drilling time of a brill more much lower than rotary drilling.
Shortcoming in view of above-mentioned existing TURBODRILLING TECHNIQUE WITH TREMENDOUS TECHNICAL existence, this art designs people is based on being engaged in for a long time related scientific research and site test, to the positive improvement and bring new ideas in addition of prior art, to realizing, a kind of pressure drop is low, racing speed and working speed is low, Operating torque is moderate turbodrill.
Summary of the invention
What the object of this invention is to provide that a kind of braking torque is large, hydraulic loss is little scans Wedge-shaped blade retrostage rotor assembly parts.
For achieving the above object, the present invention proposes a kind of Wedge-shaped blade retrostage rotor assembly parts that scans, comprise stator and the rotor of coaxial package, the central axis conllinear of described stator and described rotor; Described stator comprises cylindric stator body, several stator vanes and the circular stator integral shroud of coaxial setting, described rotor comprises cylindric rotor body, several rotor blades and the circular rotor integral shroud of coaxial setting, the inwall of described stator integral shroud and described rotor body outer wall coaxial package, is characterized in that: described in several, stator vane is with rotor blade described in several Wedge-shaped reversing vertically.
The Wedge-shaped blade retrostage rotor assembly parts that scans as above, wherein: described stator vane and described rotor blade all have first and scan cross section and second and scan cross section, described first to scan cross section be that blade three dimensional design curved surface and the described rotor blade that described stator vane pushes up on isometrical cylndrical surface at stator leaf pushes up the blade three dimensional design curved surface on isometrical cylndrical surface at rotor leaf, described second to scan cross section be blade three dimensional design curved surface and the described rotor blade blade three dimensional design curved surface on rotor leaf at the bottom of isometrical cylndrical surface of described stator vane on isometrical cylndrical surface at the bottom of stator leaf, described stator vane and described rotor blade also all have first and scan guide line and second and scan guide line, the line of any in leading edge at the bottom of the described first leaf scanning in the leaf top leading edge that guide line is described stator vane a bit with described stator vane, and in the leaf top leading edge of described rotor blade a bit with leading edge at the bottom of the leaf of described rotor blade on any line, the line of any on trailing edge at the bottom of the described second leaf scanning on the leaf top trailing edge that guide line is described stator vane a bit with described stator vane, and on the leaf top trailing edge of described rotor blade a bit with trailing edge at the bottom of the leaf of described rotor blade on any line, and described first scan guide line and second and scan the vertical projecting line of guide line on equivalent meridian plane along each self-corresponding isometrical cylndrical surface radial direction.
The Wedge-shaped blade retrostage rotor assembly parts that scans as above, wherein: the axial height of described stator vane is along the radially equal or increase gradually from inside to outside of described stator, and the axial height of described rotor blade radially equates from inside to outside or increases gradually along described rotor.
The Wedge-shaped blade retrostage rotor assembly parts that scans as above, wherein: the circumferential thickness of described stator vane is along the radially constant or increase gradually from inside to outside of described stator, but the circumferential thickness of described stator vane on the isometrical cylndrical surface of difference is not directly proportional with corresponding isometrical cylndrical surface radius; The circumferential thickness of described rotor blade is along the radially constant or increase gradually from inside to outside of described rotor, but the circumferential thickness of described rotor blade on the isometrical cylndrical surface of difference is not directly proportional with corresponding isometrical cylndrical surface radius.
The Wedge-shaped blade retrostage rotor assembly parts that scans as above, wherein: the evolute of the center line of described stator vane on isometrical cylndrical surface is straight line, the evolute of the center line of described stator vane and equivalent meridian plane form the tilt angle of described stator vane; The evolute of the center line of described rotor blade on isometrical cylndrical surface is also straight line, and the evolute of the center line of described rotor blade and equivalent meridian plane form the tilt angle of described rotor blade; The tilt angle of described stator vane and the tilt angle of described rotor blade, direction is identical, and the tilt angle of described stator vane and the tilt angle of described rotor blade reduce gradually from inside to outside or equate along described stator and described rotor radial.
The present invention scans Wedge-shaped blade retrostage rotor assembly parts, the rotor and the stator that comprise coaxial package, described rotor comprises rotor body cylindraceous, several rotor blades and circular rotor integral shroud, in one end of described rotor body periphery, be provided with the boss radially protruding, described several rotor blades are evenly laid along the external peripheral surface of described boss, and described rotor integral shroud is socketed on the leaf top of described rotor blade; Described stator comprises stator body cylindraceous, several stator vanes and circular stator integral shroud, described several stator vanes are evenly laid along the inner circumferential surface of described stator body, and the outer wall of described stator integral shroud is connected with at the bottom of the leaf of described stator vane; The inwall of described stator integral shroud and the coaxial fit of described rotor body outer wall; The blade profile of described stator vane and described rotor blade is scans formation, blade inlet edge is thin, trailing edge is thick, be that stator vane is served as reasons and at stator leaf, pushed up blade three dimensional design curved surface on isometrical cylndrical surface and blade three dimensional design curved surface on isometrical cylndrical surface at the bottom of stator leaf and scan formations, the rotor blade blade three dimensional design curved surface pushing up on isometrical cylndrical surface at rotor leaf of serving as reasons and scan formation with the blade three dimensional design curved surface on isometrical cylndrical surface at the bottom of rotor leaf, each blade-shaped is a chock seemingly.Scanning cross section has two, is respectively to push up blade three dimensional design curved surface on isometrical cylndrical surface and the blade three dimensional design curved surface on isometrical cylndrical surface at the bottom of stator or rotor leaf at stator or rotor leaf.Scanning guide line also has two, and one for push up the line of blade inlet edge mid point on isometrical cylndrical surface and blade inlet edge mid point on isometrical cylndrical surface at the bottom of stator or rotor leaf at stator or rotor leaf, is positioned at isometrical cylndrical surface radial direction; Another,, for push up the line of trailing edge mid point on isometrical cylndrical surface and trailing edge mid point on isometrical cylndrical surface at the bottom of stator or rotor leaf at stator or rotor leaf, is also positioned at isometrical cylndrical surface radial direction.Described stator or rotor blade leading edge have unique straight line (guide line in leading edge), stator or a rotor blade trailing edge that points to radial direction and cross the straight line (guide line in trailing edge) that also has a unique sensing radial direction in the intersecting line of stator or rotor axis plane with crossing in the intersecting line of stator or rotor axis plane.
Described scan Wedge-shaped blade scan guide line except select aforementioned leading edge mid point guide line and trailing edge mid point guide line simultaneously, can also select another two: one for push up the line (non-leading edge mid point guide line) of other any point except leading edge point on other any point except leading edge mid point on the blade inlet edge on isometrical cylndrical surface and blade inlet edge on isometrical cylndrical surface at the bottom of stator or rotor leaf at stator or rotor leaf, be positioned at isometrical cylndrical surface radial direction; Another,, for push up the line (non-trailing edge mid point guide line) of other any point except trailing edge point on other any point except trailing edge mid point on the trailing edge on isometrical cylndrical surface and trailing edge on isometrical cylndrical surface at the bottom of stator or rotor leaf at stator or rotor leaf, is positioned at isometrical cylndrical surface radial direction.That is to say, two are scanned guide line and except can select simultaneously, aforementioned leading edge mid point guide line and trailing edge mid point guide line, can also be: (1) leading edge mid point guide line, a non-trailing edge mid point guide line; (2), non-leading edge mid point guide line, a trailing edge mid point guide line; (3), non-leading edge mid point guide line, a non-trailing edge mid point guide line.
Compared with prior art, the present invention has following characteristics and advantage:
The present invention scans that Wedge-shaped blade retrostage rotor assembling unit structure is simple, braking torque is large, hydraulic loss is little, some is scanned the combination of hydraulic brake level rotor and some turbines rotor and is assembled together and can significantly reduces turbodrill racing speed and working speed, improves operating time, overload capacity, the stability of working under the slow-speed of revolution and the turbodrilling drilling depth of turbodrill.
Accompanying drawing explanation
Accompanying drawing described here is only for task of explanation, and is not intended to limit by any way scope disclosed by the invention.In addition, in figure, the shape of each parts and proportional sizes etc. are only schematically, for helping the understanding of the present invention, are not shape and the proportional sizes that specifically limits each parts of the present invention.Those skilled in the art, under instruction of the present invention, can select various possible shapes and proportional sizes to implement the present invention as the case may be.
Fig. 1 is the structural representation that the present invention scans Wedge-shaped blade retrostage rotor assembly parts embodiment;
Fig. 2 is the stator cross-sectional view of the embodiment of the present invention;
Fig. 3 is the stator perspective view of the embodiment of the present invention;
Fig. 4 is that the stator vane of the embodiment of the present invention pushes up isometrical cylndrical surface (S=1.0) expansion schematic diagram along leaf;
Fig. 5 is that the stator of the embodiment of the present invention is along the equivalent meridian plane cut-away illustration of I=0.5;
Fig. 6 is the rotor profiles structural representation of the embodiment of the present invention;
Fig. 7 is the rotor perspective view of the embodiment of the present invention;
Fig. 8 is that the rotor blade of the embodiment of the present invention pushes up isometrical cylndrical surface (S=1.0) expansion schematic diagram along leaf;
Fig. 9 is that the rotor of the embodiment of the present invention is along the equivalent meridian plane cut-away illustration of I=0.5.
Description of reference numerals:
1-rotor; 101-rotor body; 102-rotor blade; 103-rotor integral shroud; 104-boss; 105-rotor blade suction surface; 106-rotor blade pressure side; 107-rotor leaf top; At the bottom of 108-rotor leaf; 109-rotor blade leading edge; 110-rotor blade trailing edge; 111-first scans cross section; 112-second scans cross section; 113-rotor center axis; 114-first scans guide line; 115-second scans guide line.
2-stator; 201-stator body; 202-stator vane; 203-stator integral shroud; 204-stator vane pressure side; 205-stator vane suction surface; 207-stator leaf top; At the bottom of 208-stator leaf; 209-stator vane leading edge; 210-stator vane trailing edge; 211-first scans cross section; 212-second scans cross section; 213-stator center axis; 214-first scans guide line; 215-second scans guide line.
Embodiment
With the description of the specific embodiment of the invention, can more be well understood to details of the present invention by reference to the accompanying drawings.But the specific embodiment of the present invention described here,, for explaining object of the present invention, is only limitation of the present invention and can not be understood as by any way.Under instruction of the present invention, technician can conceive based on possible distortion arbitrarily of the present invention, and these all should be regarded as belonging to scope of the present invention.
Please refer to Fig. 1 to Fig. 9, Fig. 1 is the structural representation that the present invention scans Wedge-shaped blade retrostage rotor assembly parts embodiment; Fig. 2 is the stator cross-sectional view of the embodiment of the present invention; Fig. 3 is the stator perspective view of the embodiment of the present invention; Fig. 4 is that the stator vane of the embodiment of the present invention pushes up isometrical cylndrical surface (S=1.0) expansion schematic diagram along leaf; Fig. 5 is that the stator of the embodiment of the present invention is along the equivalent meridian plane cut-away illustration of I=0.5; Fig. 6 is the rotor profiles structural representation of the embodiment of the present invention; Fig. 7 is the rotor perspective view of the embodiment of the present invention; Fig. 8 is that the rotor blade of the embodiment of the present invention pushes up isometrical cylndrical surface (S=1.0) expansion schematic diagram along leaf; Fig. 9 is that the rotor of the embodiment of the present invention is along the equivalent meridian plane cut-away illustration of I=0.5.
As shown in Figures 1 to 9, the present invention scans stator 2 and the rotor 1 that Wedge-shaped blade retrostage rotor assembly parts comprises coaxial package, the central axis conllinear of stator 2 and rotor 1, stator 2 comprises the cylindric stator body 201 of coaxial setting, several stator vanes 202 and circular stator integral shroud 203, rotor 1 comprises the cylindric rotor body 101 of coaxial setting, several rotor blades 102 and circular rotor integral shroud 103, in one end of rotor body 101 periphery, be provided with the boss 104 radially protruding, several rotor blades 102 are evenly laid along boss 104 external peripheral surfaces of rotor body 101, rotor integral shroud 103 is socketed on the leaf top of rotor blade 102, make rotor body 101, blade 102, rotor integral shroud 103 forms the rotor 1 of integrative-structure.
As shown in Figures 2 to 5, stator 2 comprises stator body 201 cylindraceous, several stator vanes 202 and circular stator integral shroud 203, several stator vanes 202 are evenly laid along the inner circumferential surface of stator body 201, at the bottom of the leaf of the outer wall of stator integral shroud 203 and stator vane 202, be connected, make stator body 201, several stator vanes 202 and stator integral shroud 203 form the stator 2 of integrative-structures.As shown in Figure 1, the inwall of stator integral shroud 203 and rotor body 101 outer wall phase fits, and stator body 201 central axis 213 are coaxial with rotor body 101 central axis 113, and the inwall of stator integral shroud 203 and the coaxial fit of rotor body 101 outer wall, make stator 2 coordinate installation with rotor 1.
As shown in Figures 6 to 9, rotor 1 comprises rotor body 101 cylindraceous, several rotor blades 102 and circular rotor integral shroud 103, in one end of rotor body 101 periphery, be provided with the boss 104 radially protruding, several rotor blades 102 are evenly laid along the external peripheral surface of the boss 104 of rotor body 101, rotor integral shroud 103 is socketed on the leaf top of rotor blade 102, makes rotor body 101, blade 102, rotor integral shroud 103 form the rotor 1 of integrative-structure.As shown in Figure 1, the inwall of stator integral shroud 203 and rotor body 101 outer wall phase fits, and the central axis 213 of stator 2 is coaxial with the central axis 113 of rotor 1, and the inwall of stator integral shroud 203 and the coaxial fit of rotor body 101 outer wall, make stator 2 coordinate installation with rotor 1.
In the present invention, stator vane 202 and rotor blade 102 are the blade that scans formation.Several stator vanes 202 are with rotor blade 102 described in several wedge shape of reversing vertically.As shown in Figure 3, stator vane 202 is stator leaf top 207 in abutting connection with a side of stator body 201, and its side in abutting connection with stator integral shroud 203 is at the bottom of stator leaf 208.At the bottom of stator leaf top 207 and stator leaf, between 208, have cylndrical surface any number of and stator body 201 and stator integral shroud 203 common central axis 213, each cylndrical surface is referred to as isometrical cylndrical surface.208 relative position S value representation at the bottom of arbitrary isometrical cylndrical surface at the bottom of stator leaf top 207 and stator leaf between 208 and stator leaf top 207 and stator leaf, 0.0≤S≤1.0: as isometrical cylndrical surface S=0.0 when 208 cylndrical surface, place overlap at the bottom of stator leaf, push up 207 cylndrical surface, place S=1.0 while overlapping when isometrical cylndrical surface with stator leaf.Accordingly, as shown in Figure 7, rotor blade 102 is at the bottom of rotor leaf 108 in abutting connection with a side of rotor body 101, and its side in abutting connection with rotor integral shroud 103 is rotor leaf top 107, at the bottom of rotor leaf top 107 and rotor leaf, between 108, have cylndrical surface any number of and rotor body 101 and rotor integral shroud 103 common central axis 113, each cylndrical surface is also referred to as isometrical cylndrical surface.108 relative position S value representation at the bottom of arbitrary isometrical cylndrical surface at the bottom of rotor leaf top 107 and rotor leaf between 108 and rotor leaf top 107 and rotor leaf, 0.0≤S≤1.0: as isometrical cylndrical surface S=0.0 when 108 cylndrical surface, place overlap at the bottom of rotor leaf, push up 107 cylndrical surface, place S=1.0 while overlapping when isometrical cylndrical surface with rotor leaf.Because stator 2 and rotor 1 are total to central axis up and down, being set with superimposed setting, is therefore same isometrical cylndrical surface waiting isometrical cylndrical surface and the isometrical cylndrical surface on rotor 1 on the stator 2 of S value.
In the present invention, with the central axis 213 of stator 2 and the central axis 113 of rotor 1 simultaneously crossing plane be referred to as meridian plane.As shown in Figure 5, the meridian plane between the upper end of stator vane 202 (entrance) and lower end (outlet) and the relative position I value representation of upper end and lower end, 0.0≤I≤1.0.Wherein, wait the meridian plane of I value to be called equivalent meridian plane: I=0.0 when the upper end of equivalent meridian plane and stator vane 202 is tangent, I=1.0 when the lower end of equivalent meridian plane and stator vane 202 is tangent.Accordingly, as shown in Figure 9, the meridian plane between the upper end of rotor blade 102 (entrance) and lower end (outlet) and the relative position of upper end and lower end are also used I value representation, 0.0≤I≤1.0.Wherein, the meridian plane that waits I value is also referred to as equivalent meridian plane: I=0.0 when the upper end of equivalent meridian plane and rotor blade 102 is tangent, I=1.0 when the lower end of equivalent meridian plane and rotor blade 102 is tangent.
In the present invention, stator vane 202 and rotor blade 102 all have first and scan cross section and second and scan cross section, first scans 207 crossing cross sections, isometrical cylndrical surface corresponding to it, leaf top that cross section is stator vane 202, and 107 crossing cross sections, isometrical cylndrical surface corresponding to it, the leaf of rotor blade 102 top; Second scans 208 crossing cross sections, isometrical cylndrical surface corresponding to it at the bottom of the leaf that cross section is stator vane 202, and 108 crossing cross sections, isometrical cylndrical surface corresponding to it at the bottom of the leaf of rotor blade 102.First to scan cross section be that blade three dimensional design curved surface and the rotor blade that stator vane pushes up on isometrical cylndrical surface at stator leaf pushes up the blade three dimensional design curved surface on isometrical cylndrical surface at rotor leaf, and second to scan cross section be blade three dimensional design curved surface and the blade three dimensional design curved surface of rotor blade on isometrical cylndrical surface at the bottom of rotor leaf of rotor blade on isometrical cylndrical surface at the bottom of stator leaf.Stator vane 202 and rotor blade 102 also all have first and scan guide line and second and scan guide line, first scans in the leading edge on leaf top 207 that guide line is stator vane 202 a bit and the line between a bit in 208 leading edge at the bottom of the leaf of stator vane 202, and the line between a bit in 108 leading edge a bit and at the bottom of the leaf of rotor blade 102 in the leading edge on the leaf of rotor blade 102 top 107, in leading edge, be a bit preferably leading edge mid point, first scans guide line 214,114 is leading edge mid point guide line.Second scans on the trailing edge on leaf top 207 that guide line is stator vane 202 a bit and the line between a bit on 208 trailing edge at the bottom of the leaf of stator vane 202, and the line between a bit on 108 trailing edge a bit and at the bottom of the leaf of rotor blade 102 on the trailing edge on the leaf of rotor blade 102 top 107, on trailing edge, be a bit preferably trailing edge mid point, second scans guide line 215,115 is trailing edge mid point guide line.And first scans guide line and second scans the vertical projecting line of guide line on equivalent meridian plane along each self-corresponding isometrical cylndrical surface radial direction.
Further, the axial height of stator vane 202 is along the radially equal or increase gradually from inside to outside of stator 2; The axial height of rotor blade 102 radially equates from inside to outside or increases gradually along rotor 1.
Further, the circumferential thickness of stator vane 202 is along the radially constant or increase gradually from inside to outside of stator 2, but the circumferential thickness of stator vane 202 on the isometrical cylndrical surface of difference is not directly proportional with corresponding isometrical cylndrical surface radius; The circumferential thickness of rotor blade 102 is along the radially constant or increase gradually from inside to outside of rotor 1, but the circumferential thickness of rotor blade 102 on the isometrical cylndrical surface of difference is not directly proportional with corresponding isometrical cylndrical surface radius.
Further, as shown in Figure 4 and Figure 8, the evolute of the central axis 213 of stator vane 202 on isometrical cylndrical surface is straight line, and the evolute of the central axis 213 of stator vane 202 and equivalent meridian plane form the tilt angle of stator vane 202; The evolute of the central axis 113 of rotor blade 102 on isometrical cylndrical surface is also straight line, and the evolute of the center line 113 of rotor blade 102 and equivalent meridian plane form the tilt angle of rotor blade 102.The tilt angle of the tilt angle of stator vane 202 and rotor blade 102, direction is identical, and the tilt angle of stator vane 202 radially reduces gradually from inside to outside or equates along stator 2 and rotor 1 with the tilt angle of rotor blade 102.
Further, stator vane 202 or rotor blade 102 leading edges have a unique straight line (leading edge guide line) that points to radial direction with crossing in the intersecting line of plane of stator 2 or rotor 1 central axis, and stator vane 202 or rotor blade 102 trailing edges also have a unique straight line (trailing edge guide line) that points to radial direction with crossing in the intersecting line of stator or rotor center axis plane.
As shown in Fig. 2 to Fig. 9, stator vane 202 and rotor blade 102 are the blade that scans formation, and stator vane 202 central axis 213 and rotor blade 102 central axis 113 form a tilt angle (claiming again established angle) with equivalent meridian plane respectively, and the stator vane angle of inclination beta on isometrical cylndrical surface
l2with rotor blade angle of inclination beta
l1, direction is identical, and radially (from inside to outside) reduces gradually or equate.
As shown in Figure 4 and Figure 8, (stator vane 202 and the rotor blade 102 leading edge radius of arc on isometrical cylndrical surface is respectively r for the leading edge 109 of the leading edge 209 of stator vane 202, trailing edge 210 and rotor blade 102, trailing edge 110
21and r
11, stator vane 202 and the rotor blade 102 trailing edge radius of arc on isometrical cylndrical surface is respectively r
22and r
12, and r
21≤ r
22, r
11≤ r
12) tangent with pressure side, suction surface profile line, can greatly reduce hydraulic loss like this.
Further, as shown in Figure 1, Figure 2 with shown in Fig. 6, the axial height that scans Wedge-shaped blade retrostage stator 2 and rotor 1 is L=20～60mm; Retrostage stator outer diameter is D
se=50～300mm, retrostage rotor internal diameter is D
ri=20～200mm.For ease of installing and using the outer diameter D of retrostage stator
seidentical with turbine stage stator outer diameter, the inside diameter D of hydraulic brake level rotor
riidentical with turbine stage rotor internal diameter.
Further, as shown in Figure 1, Figure 2 with shown in Fig. 6, the inner circumference diameter that scans Wedge-shaped blade retrostage rotor integral shroud 103 is D
r1, the inner circumference diameter of stator body 201 is D
s1, the runner outer diameter D that this rotor combines
1=D
r1=D
s1=40～280mm; The boss 104 excircle diameters of rotor body 101 are D
r2, the excircle diameter of stator integral shroud 203 is D
s2, i.e. the runner inside diameter D of this rotor assemblying body
2=D
r2=D
s2=30～220mm; Runner outer diameter D
1with runner inside diameter D
2arithmetic mean value be average Flow diameter D, D=(D
1+ D
2)/2=35～250mm; Runner outer diameter D
1with runner inside diameter D
2half of difference be width of flow path h=h
r=h
s, h=(D
1-D
2)/2=5～100mm.(note: as required, D
r1with D
s1, D
r2with D
s2desirable different value.)
Further, as shown in Figure 3 and Figure 7, scan the blade number n of Wedge-shaped blade retrostage stator vane 202
2blade number n with rotor blade 101
1be respectively n
1=10～60, n
2=10～60, to meet different operating mode demands.
Further, as shown in Figure 4 and Figure 8, scan Wedge-shaped blade retrostage stator vane 202 and rotor blade 102 all by scanning generation, and on isometrical cylndrical surface stator vane 202 established angle β
l2with rotor blade 102 established angle β
l1equate 10 °≤β of span
l1=β
l2≤ 90 °.The axial height L of rotor integral shroud 103
1with stator integral shroud 203 axial height L
2equate, i.e. L
1=L
2=8～19mm; The axial height of rotor blade 102 is H
1, H
1the axial height of=8～19mm, stator vane 202 is H
2, H
2=8～19mm; Angle between rotor blade 102 pressure sides and suction surface is
angle between stator vane 202 pressure sides and suction surface is
pitch t between adjacent two stator vanes 202
2or the pitch t between adjacent two rotor blades 101
1be respectively t
1=3.0～10.0mm, t
2=3.0～10.0mm, pitch t
1with pitch t
2can get different value.
Further, as shown in Fig. 5 and Fig. 9, described stator vane 202 or rotor blade 102 is tangent with the equivalent meridian plane that value is 0.5, and two of the pressure side 104 of the pressure side 204 of stator vane 202 and suction surface 205 or rotor blade 102 and suction surface 105 and equivalent meridian plane pass through straight line parallel with stator 2 or rotor 1 radial direction (two intersecting lines and stator or rotor axis are non-intersect) respectively mutually.
The present invention in use, the blade 202 that the blade 102 that scans Wedge-shaped blade retrostage rotor 1 is equal to stator 2 extends (stator vane is identical with the established angle of rotor blade) in axial rotation, when hydraulic brake level rotor assembly parts and turbine stage rotor assembly parts are arranged on same main shaft, when working solution is flowed through rotor assembly parts, turbine stage rotor and produce moment of torsion, hydraulic brake level rotor is driven to rotate.Because the true dip direction of retrostage stator vane and the true dip direction of turbine stage stator vane are contrary, therefore the working solution flowing out from retrostage stator is by inhibition to the rotation of retrostage rotor blade, that is not only can not produce Operating torque to turbodrill main shaft, and will consume moment of torsion, thereby the rotating speed of main shaft is decreased.Meanwhile, when retrostage rotor rotates, just like axial flow pump runner, can assist drilling pump to pressurize to working liquid body, play the effect (reduction overall presure drop) of regulating system pressure.
In sum, the present invention designs by said structure, makes to scan Wedge-shaped blade retrostage rotor assembly parts and can reduce turbodrill rotating speed, and turbodrill working speed region is narrowed down, and has improved the overload capacity of turbodrill.
The foregoing is only the schematic embodiment of the present invention, not in order to limit scope of the present invention.Any those skilled in the art, not departing from equivalent variations and the modification of having done under the prerequisite of design of the present invention and principle, all should belong to the scope of protection of the invention.
Claims (5)
1. scan a Wedge-shaped blade retrostage rotor assembly parts, comprise stator and the rotor of coaxial package, the central axis conllinear of described stator and described rotor; Described stator comprises cylindric stator body, several stator vanes and the circular stator integral shroud of coaxial setting, described rotor comprises cylindric rotor body, several rotor blades and the circular rotor integral shroud of coaxial setting, the inwall of described stator integral shroud and described rotor body outer wall coaxial package, is characterized in that: described in several, stator vane is with rotor blade described in several Wedge-shaped reversing vertically.
2. the Wedge-shaped blade retrostage rotor assembly parts that scans as claimed in claim 1, it is characterized in that: described stator vane and described rotor blade all have first and scan cross section and second and scan cross section, described first to scan cross section be that blade three dimensional design curved surface and the described rotor blade that described stator vane pushes up on isometrical cylndrical surface at stator leaf pushes up the blade three dimensional design curved surface on isometrical cylndrical surface at rotor leaf, described second to scan cross section be blade three dimensional design curved surface and the described rotor blade blade three dimensional design curved surface on rotor leaf at the bottom of isometrical cylndrical surface of described rotor blade on isometrical cylndrical surface at the bottom of stator leaf, described stator vane and described rotor blade also all have first and scan guide line and second and scan guide line, the line of any in leading edge at the bottom of the described first leaf scanning in the leading edge on leaf top that guide line is described stator vane a bit with described stator vane, and in the leading edge on the leaf of described rotor blade top a bit with leading edge at the bottom of the leaf of described rotor blade on any line, the line of any on trailing edge at the bottom of the described second leaf scanning on the trailing edge on leaf top that guide line is described stator vane a bit with described stator vane, and on the trailing edge on the leaf of described rotor blade top a bit with trailing edge at the bottom of the leaf of described rotor blade on any line, and described first scan guide line and second and scan the vertical projecting line of guide line on equivalent meridian plane along each self-corresponding isometrical cylndrical surface radial direction.
3. scan as claimed in claim 1 or 2 Wedge-shaped blade retrostage rotor assembly parts, it is characterized in that: the axial height of described stator vane is along the radially equal or increase gradually from inside to outside of described stator, and the axial height of described rotor blade radially equates from inside to outside or increases gradually along described rotor.
4. scan as claimed in claim 1 or 2 Wedge-shaped blade retrostage rotor assembly parts, it is characterized in that: the circumferential thickness of described stator vane is along the radially constant or increase gradually from inside to outside of described stator, but the circumferential thickness of described stator vane on the isometrical cylndrical surface of difference is not directly proportional with corresponding isometrical cylndrical surface radius; The circumferential thickness of described rotor blade is along the radially constant or increase gradually from inside to outside of described rotor, but the circumferential thickness of described rotor blade on the isometrical cylndrical surface of difference is not directly proportional with corresponding isometrical cylndrical surface radius.
5. scan as claimed in claim 1 or 2 Wedge-shaped blade retrostage rotor assembly parts, it is characterized in that: the evolute of the center line of described stator vane on isometrical cylndrical surface is straight line, the evolute of the center line of described stator vane and equivalent meridian plane form the tilt angle of described stator vane; The evolute of the center line of described rotor blade on isometrical cylndrical surface is also straight line, and the evolute of the center line of described rotor blade and equivalent meridian plane form the tilt angle of described rotor blade; The tilt angle of described stator vane and the tilt angle of described rotor blade, direction is identical, and the tilt angle of described stator vane and the tilt angle of described rotor blade reduce gradually from inside to outside or equate along described stator and described rotor radial.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410389294.1A CN104179622A (en) | 2014-08-08 | 2014-08-08 | Braking level stator-rotor assembly provided with sweeping wedge-shaped blades |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410389294.1A CN104179622A (en) | 2014-08-08 | 2014-08-08 | Braking level stator-rotor assembly provided with sweeping wedge-shaped blades |
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| Publication Number | Publication Date |
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| CN104179622A true CN104179622A (en) | 2014-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410389294.1A Pending CN104179622A (en) | 2014-08-08 | 2014-08-08 | Braking level stator-rotor assembly provided with sweeping wedge-shaped blades |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107358650A (en) * | 2017-07-17 | 2017-11-17 | 湖北理工学院 | A kind of mechanical structure basic body Morphogenesis method of restructural |
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Application publication date: 20141203 |