CN102733868B - Dynamic power machine - Google Patents
Dynamic power machine Download PDFInfo
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- CN102733868B CN102733868B CN201210233834.8A CN201210233834A CN102733868B CN 102733868 B CN102733868 B CN 102733868B CN 201210233834 A CN201210233834 A CN 201210233834A CN 102733868 B CN102733868 B CN 102733868B
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- ring
- casing
- containing ring
- dynamic power
- power machine
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Abstract
The invention provides a kind of dynamic power machine, comprise: casing, rotor and the containing ring be arranged at outside rotor, contain ring to be connected with casing, wherein, radial motion and the axial motion of containing ring are subject to casing constraint and contain ring to arrange rotatably relative to casing.According to dynamic power machine of the present invention, when high energy fragment hits containing ring, high energy fragment hits the power containing ring and can be analyzed to both direction, be respectively radial force and tangential force, tangential force is rotated after making containing ring overcome radial friction and circumference friction, therefore, the inclusive ring of the part energy that in the energy of high energy fragment, radial force produces absorbs, another part Conversion of Energy that tangential force produces is contain the kinetic energy of ring and contain the heat energy of ring pivoting friction generation, when containing ring and carrying out Thickness Design, only need the portion of energy considering that inclusive ring absorbs, thus, ring is contained on the guarantee reliable basis of structure can be designed thinner lighter and handier.
Description
Technical field
The present invention relates to field of dynamic engineering, more specifically, relate to a kind of dynamic power machine.
Background technique
The dynamic power machine such as gas turbine engine or steam turbine contains the rotor of High Rotation Speed, and rotor was in the course of the work likely because a variety of causes lost efficacy, and produce high energy fragment, thus may puncture stator casing, fly out dynamic power machine, jeopardizes the safety of surrounding objects.
The dynamic power machines such as existing gas turbine engine or steam turbine are for the consideration of Security aspect, generally all contain ring structure in the rotor outer installment of high speed rotating, containing ring Main Function is at rotor failure damage, when occurring that high energy fragment flies out, absorb the energy of high energy fragment, after avoiding high energy fragment to puncture dynamic power machine, jeopardize people and the object of surrounding.Existing containing ring structure is generally arranged on casing by forms such as welding, be threaded, also has the mode adopting casing local to increase wall thickness to form containing ability.When the impact of high energy fragment is when containing on ring, the thickness containing the main material of dependence of ring own absorbs the energy of high energy fragment, and therefore containing ring needs to design enough abundant, to guarantee that high energy fragment can not fly out.
Summary of the invention
The invention provides a kind of dynamic power machine, the containing ring structure being intended to realize dynamic power machine is lightly reliable, effectively can contain the object of high energy fragment.
The invention provides a kind of dynamic power machine, comprise: casing, rotor and the containing ring be arranged at outside rotor, contain ring to be connected with casing, wherein, radial motion and the axial motion of containing ring are subject to casing constraint and contain ring to arrange rotatably relative to casing.
Further, casing and of containing in ring comprise annular groove; Casing and contain in ring another comprise the annular protrusion with annular groove Spielpassung.
Further, casing comprises the radial annular groove arranged; Contain ring and comprise the radial annular protrusion arranged.
Further, casing comprises: the first casing body, comprises the first mounting edge being positioned at the first casing body end; Second casing body, comprises the second mounting edge being positioned at the second casing body end, and the first mounting edge abuts with the relative end face of the second mounting edge, and the shape of annular groove is limited by the shape of the first mounting edge with the relative end face of the second mounting edge.
Further, the cross section of annular groove is the combination of rectangle, T-shaped, L shape, trapezoidal, curvilinerar figure or curve and straight line.
Further, the inner well width at least partially of annular groove is greater than the A/F of annular groove.
Further, the cross section of annular groove is the combination of T-shaped, L shape, trapezoidal, curvilinerar figure or curve and straight line.
Further, containing ring is overall structure.
Further, inside or the outside that ring is arranged at casing is contained.
Further, dynamic power machine is gas turbine engine or steam turbine.
According to dynamic power machine of the present invention, owing to containing the radial motion of ring and axial motion by casing constraint and to contain ring free to rotate relative to casing, when high energy fragment hits containing ring, high energy fragment hits the power containing ring and can be analyzed to both direction, be respectively radial force and tangential force, tangential force is rotated after making containing ring overcome radial friction and circumference friction, therefore, the inclusive ring of the part energy that in the energy of high energy fragment, radial force produces absorbs, another part Conversion of Energy that tangential force produces is contain the kinetic energy of ring and contain the heat energy of ring pivoting friction generation, when containing ring and carrying out Thickness Design, only need the portion of energy considering that inclusive ring absorbs, thus, compared with prior art, ring is contained on the guarantee reliable basis of structure can be designed thinner lighter and handier.
Accompanying drawing explanation
The accompanying drawing forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation according to dynamic power machine of the present invention;
Fig. 2 is the fundamental diagram according to dynamic power machine of the present invention.
Embodiment
Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
As shown in Figure 1, the containing ring 1 that the dynamic power machine in the present embodiment comprises casing 2, rotor 3 and is arranged at outside rotor 3.Contain ring 1 to link together with casing 2.Above-mentioned casing 2 comprises the first casing body and the second casing body particularly, the end face that first mounting edge 22 of the first casing body is relative with the second mounting edge 23 of the second casing body abuts, and the first mounting edge 22 and the relative end surface shape of the second mounting edge 23 define radial annular groove 21.Above-mentioned containing ring 1 is by the annular protrusion 11 of the radial direction that is wholely set and annular groove 21 Spielpassung, and the radial motion and the axial motion that make to contain ring 1 retrain by casing 2.On the one hand, the gap (not shown) that one very little is had between the inner cylindrical surface of annular protrusion 11 and the cylndrical surface, the end of annular groove 21, namely assembling is convenient to, realize again the radial constraint containing ring 1, on the other hand, the width of annular groove 21 is slightly larger than the thickness of annular protrusion 11 containing ring 1, make to contain between the annular protrusion 11 of ring 1 and the annular groove 21 of casing 2 and have very little gap delta, thus both can rotate when ensureing that containing ring 1 is stressed, be unlikely to again to make containing ring 1 produce larger radial and axial string quantity of motion.
As shown in Figure 2, when the energy block of the fragmentation of rotor 3 hits containing ring 1, high energy fragment hits the power F containing ring 1 and can be analyzed to both direction, is respectively radial force F1 and tangential force F2, and tangential force F2 rotates after making containing ring 1 overcome radial friction and circumference friction.Therefore, the inclusive ring 1 of the portion of energy E1 produced by radial force F1 in the energy of high energy fragment absorbs, and another part ENERGY E 2 produced by tangential force F2 is converted into the kinetic energy containing ring 1 and the heat energy containing the generation of ring 1 pivoting friction.Therefore, when containing ring and carrying out Thickness Design, only need the portion of energy E1 considering that inclusive ring absorbs, thus, compared with prior art, ring is contained on the guarantee reliable basis of structure and can design thinner lighter and handier.
In the present embodiment, the sectional shape of annular groove 21 and annular protrusion 11 is rectangle.But the cross section of annular groove and annular projection also can be the shape such as combination of T-shaped, L shape, trapezoidal, curvilinerar figure or curve and straight line.The concrete shape of annular groove can be limited by the opposing end surface shape of the first mounting edge 22 and the second mounting edge 23 equally.
In the present embodiment, annular protrusion 11 has been arranged on the end of containing ring 1, and the concrete shape of annular groove 21 is limited by the opposing end surface shape of the first mounting edge 22 and the second mounting edge 23.As long as but can ensure to contain the radial motion of ring 1 and axial motion retrains by casing 2 and contain ring 1 and arrange rotatably relative to casing 2, the position of annular protrusion 11 and annular groove 21 and quantity are all not limited to the structure that above specific embodiment provides.
According to the dynamic power machine of the present embodiment, above-mentioned containing ring 1 adopts overall structure.But in dynamic power machine of the present invention, containing ring and casing can need to adopt Split type structure to carry out the mode combined again according to design, installation etc.
In the dynamic power machine of the present embodiment, contain the outside that ring 1 is arranged at casing 2.But, contain the inside that ring also can be arranged on casing, the effect of containing high energy fragment can be realized equally.
In the present embodiment, the opening containing the annular groove 21 of ring has identical width with inside grooves.In a unshowned embodiment, annular groove inside has at least the well width of a part to be greater than the A/F of above-mentioned annular groove, to ensure annular protrusion 11 in radial direction better by the constraint of casing 2, prevents from better containing the radial vibration of ring.
Above dynamic power machine can be gas turbine engine or steam turbine.
As can be seen from the above description, the above embodiments of the present invention achieve following technique effect: the end face relative with the second mounting edge of the second casing body end by the first mounting edge of the first casing body end abuts, form the annular groove with the ring-shape projection fits containing ring, make the motion of the axial direction of containing ring and radial direction all be subject to casing constraint, but freely can rotate relative to casing.When high energy fragment hits containing ring, high energy fragment hits the power F containing ring and can be analyzed to both direction, is respectively radial force F1 and tangential force F2, and tangential force F2 makes containing ring overcome radial friction and circumferential rear rotation of rubbing.Therefore, the inclusive ring absorption of the part energy E1 that in the energy of high energy fragment, radial force F1 produces, another part ENERGY E 2 that tangential force F2 produces is converted into the kinetic energy containing ring and the heat energy containing the generation of ring pivoting friction.When ring thickness is contained in design, only need to consider to absorb E1 this part energy, therefore contain that ring wall is thick can be designed thinner lighter and handier.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. a dynamic power machine, comprise: casing (2), rotor (3) and the containing ring (1) be arranged at outside described rotor (3), it is characterized in that, described containing ring (1) is connected with described casing (2), wherein, the radial motion of described containing ring (1) and axial motion retrain by described casing (2) and described containing ring (1) is arranged rotatably relative to described casing (2), one in described casing (2) and described containing ring (1) comprises annular groove (21), another in described casing (2) and described containing ring (1) comprises the annular protrusion (11) with described annular groove Spielpassung, described casing (2) comprises the radial described annular groove (21) arranged, described containing ring (1) comprises the radial described annular protrusion (11) arranged, described casing (2) comprising:
First casing body, comprises the first mounting edge (22) being positioned at described first casing body end,
Second casing body, comprise the second mounting edge (23) being positioned at described second casing body end, described first mounting edge (22) abuts with the relative end face of described second mounting edge (23), and the shape of described annular groove (21) is limited by the shape of described first mounting edge (22) with the relative end face of described second mounting edge (23).
2. dynamic power machine according to claim 1, is characterized in that, the cross section of described annular groove (21) is the combination of rectangle, T-shaped, L shape, trapezoidal, curvilinerar figure or curve and straight line.
3. dynamic power machine according to claim 1, is characterized in that, the inside well width at least partially of described annular groove (21) is greater than the A/F of described annular groove.
4. dynamic power machine according to claim 3, is characterized in that, the cross section of described annular groove is the combination of T-shaped, L shape, trapezoidal, curvilinerar figure or curve and straight line.
5. dynamic power machine according to claim 1, is characterized in that, described containing ring (1) is overall structure.
6. dynamic power machine according to claim 1, is characterized in that, described containing ring (1) is arranged at inside or the outside of described casing (2).
7. dynamic power machine according to claim 1, is characterized in that, described dynamic power machine is gas turbine engine or steam turbine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210233834.8A CN102733868B (en) | 2012-07-06 | 2012-07-06 | Dynamic power machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210233834.8A CN102733868B (en) | 2012-07-06 | 2012-07-06 | Dynamic power machine |
Publications (2)
| Publication Number | Publication Date |
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| CN102733868A CN102733868A (en) | 2012-10-17 |
| CN102733868B true CN102733868B (en) | 2015-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210233834.8A Active CN102733868B (en) | 2012-07-06 | 2012-07-06 | Dynamic power machine |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108035809A (en) * | 2017-11-06 | 2018-05-15 | 中国航空工业集团公司金城南京机电液压工程研究中心 | A kind of air turbine starter subsumption architecture design method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1245791A2 (en) * | 2001-03-30 | 2002-10-02 | ROLLS-ROYCE plc | A gas turbine engine blade containment assembly |
| CN1752416A (en) * | 2004-09-23 | 2006-03-29 | 通用电气公司 | Mechanical solution for rail retention |
| EP2442033A1 (en) * | 2010-10-12 | 2012-04-18 | Siemens Aktiengesellschaft | Anchoring segment for combustion chamber and combustion chamber outer shell |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2728619B1 (en) * | 1994-12-21 | 1997-01-24 | Hispano Suiza Sa | PROTECTIVE SHIELD OF A TURBOMACHINE |
| FR2882573B1 (en) * | 2005-02-25 | 2007-04-13 | Snecma Moteurs Sa | INTERNAL HOUSING OF TURBOMACHINE EQUIPPED WITH A THERMAL SHIELD |
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2012
- 2012-07-06 CN CN201210233834.8A patent/CN102733868B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1245791A2 (en) * | 2001-03-30 | 2002-10-02 | ROLLS-ROYCE plc | A gas turbine engine blade containment assembly |
| CN1752416A (en) * | 2004-09-23 | 2006-03-29 | 通用电气公司 | Mechanical solution for rail retention |
| EP2442033A1 (en) * | 2010-10-12 | 2012-04-18 | Siemens Aktiengesellschaft | Anchoring segment for combustion chamber and combustion chamber outer shell |
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| Publication number | Publication date |
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| CN102733868A (en) | 2012-10-17 |
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Address after: Dong Jiaduan 412002 in Hunan province Zhuzhou city Lusong District Patentee after: AECC HUNAN AVIATION POWERPLANT Research Institute Country or region after: China Address before: Dong Jiaduan 412002 in Hunan province Zhuzhou city Lusong District Patentee before: CHINA AVIATION POWER MACHINERY INSTITUTE Country or region before: China |
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