CN110671160B - Rotor supporting and lubricating integrated structure of small turbine engine - Google Patents
Rotor supporting and lubricating integrated structure of small turbine engine Download PDFInfo
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- CN110671160B CN110671160B CN201911145766.8A CN201911145766A CN110671160B CN 110671160 B CN110671160 B CN 110671160B CN 201911145766 A CN201911145766 A CN 201911145766A CN 110671160 B CN110671160 B CN 110671160B
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- casing
- blanking cover
- cover
- rotating shaft
- centrifugal pump
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
- F01D11/003—Preventing or minimising internal leakage of working-fluid, e.g. between stages by packing rings; Mechanical seals
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/08—Cooling; Heating; Heat-insulation
- F01D25/12—Cooling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/08—Cooling; Heating; Heat-insulation
- F01D25/14—Casings modified therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/16—Arrangement of bearings; Supporting or mounting bearings in casings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/18—Lubricating arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/18—Lubricating arrangements
- F01D25/20—Lubricating arrangements using lubrication pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/28—Supporting or mounting arrangements, e.g. for turbine casing
Abstract
The invention relates to the technical field of turbine engines, and discloses a rotor supporting and lubricating integrated structure of a small turbine engine, which comprises a casing, wherein an engine rotating shaft, a locking nut, a closed centrifugal pump, a positioning sleeve, a bearing, a rear blanking cover, a front blanking cover and a rotor impeller are arranged on the casing, a strip-shaped groove is formed in the casing, the structure for mounting the bearing on the casing and the side wall of the casing are in a cantilever form, a guide block for connecting the closed centrifugal pump and the bearing is arranged in a closed space formed by the front blanking cover, the rear blanking cover and the casing, an internal cavity channel is arranged in the closed space formed by the front blanking cover, the rear blanking cover and the casing, the internal cavity channel can be communicated with an inlet and an outlet of the closed centrifugal pump, and penetrates through the guide block to connect the closed centrifugal pump and the rotating shaft to form an internal circulation oil path, and a lubricating oil injection hole is formed in the casing. The invention solves the problems of complex supporting structure and heavy lubricating system of the existing small turbine engine, and realizes the high-integration elastic supporting, lubricating oil internal circulation and high-efficiency heat exchange effects of the small turbine engine.
Description
Technical Field
The invention relates to the technical field of turbine engines, in particular to a small turbine engine rotor supporting and lubricating integrated structure.
Background
The rotor of the small turbine engine generally has higher rotating speed and load, and the volume space of the supporting and lubricating structure of the rotor is recompressed due to the fact that the engine is adjusted to be small in windward area and large in unit thrust index, so that high integration level and efficient supporting and lubricating have important influence on the index of the turbine engine.
The rotor support of the turbine engine is required to have reasonable rigidity and deflection, and can be used for adjusting critical rotating speed and inhibiting vibration; when a general turbine engine supporting structure is designed, an elastic support, an oil film damper, an elastic coupling, a gear sleeve shaft and other structures are arranged on a fixed casing or a rotor to adjust critical rotating speed and inhibit vibration, a pressurizing oil pump and an oil return pump with enough power are needed to pressurize lubricating oil in a lubricating mode, oil injection lubrication and oil return circulation are achieved, a heat exchange device is arranged on a lubricating oil path to take away heat absorbed by the lubricating oil, an external oil tank is needed, and a large amount of lubricating oil is filled.
The above manner makes the supporting structure of the small turbine engine complex, the lubricating system heavy, and under the increasingly strict size constraints, it is urgently needed to improve the integration level and simplify the structure.
Disclosure of Invention
Based on the problems, the invention provides a rotor supporting and lubricating integrated structure of a small turbine engine, solves the problems of complex supporting structure and heavy lubricating system of the existing small turbine engine, and realizes high-integration elastic supporting, internal circulation of lubricating oil and high-efficiency heat exchange effect of the small turbine engine.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a rotor supporting and lubricating integrated structure of a small turbine engine comprises a casing, an engine rotating shaft is installed on the casing, a locking nut, a closed centrifugal pump, a positioning sleeve, a bearing, a rear blanking cover and a rotor impeller are sequentially and serially installed on the engine rotating shaft, a front blanking cover connected with the casing is arranged on one side, away from the rear blanking cover, of the locking nut, the front blanking cover, the casing and the rear blanking cover are in sealing connection, a strip-shaped groove is formed in the casing on the outer side of the engine rotating shaft, a structure for installing the bearing on the casing and the side wall of the casing are in a cantilever form, a guide block for connecting the closed centrifugal pump and the bearing is arranged in a closed space formed by the front blanking cover, the rear blanking cover and the casing, an internal cavity channel for communicating the inlet and the outlet of the closed centrifugal pump and forming an internal circulation oil path by penetrating through the guide block and connecting the closed centrifugal pump and the rotating shaft is arranged in the closed space formed by the front blanking cover, the rear blanking cover and the rotating shaft, the casing is provided with a lubricating oil injection hole communicated with the internal cavity.
The principle and effect of the scheme are as follows: the casing is provided with a plurality of strip-shaped grooves, the rigidity of the bearing support can be reduced through the strip-shaped grooves to form an elastic support for the bearing, the structure for mounting the bearing on the casing and a support plate on the casing are in a cantilever form, the inner ring forming the cantilever structure on the casing is provided with a plurality of strip-shaped grooves, the casing is enabled to form different support rigidities by adjusting the number and the shape of the strip-shaped grooves, the elastic support effect is achieved, and the elastic support is used for adjusting the critical rotating speed of a turbine engine rotor and inhibiting vibration.
The principle and the effect of the scheme are as follows: the cooling air is introduced into the strip-shaped groove on the casing to dissipate heat of the casing, the rotor impeller and the internal lubricating oil, the cold air in front of the casing can be guided by the strip-shaped groove and flows out from a gap between the casing and the rotor impeller after flowing through the strip-shaped groove, the cold air carries out convection heat exchange through the flow path to take away the lubricating oil heat in the cavity of the casing, the cooling effect on the casing, the lubricating oil and the rotor impeller is realized, the casing can work in a stable temperature range through air cooling, the elastic supporting effect is stabilized, and the stable operation of the rotor is ensured.
The principle and effect of the scheme are three: the casing, the front blocking cover, the rear blocking cover and the guide block are provided with an oil path for communicating the outside and an internal cavity channel of the closed centrifugal pump to form a circulating oil path and enhance the heat exchange effect, a lubricating oil injection hole is formed in the upper portion of the casing close to the lower portion, a pressure relief hole is formed in the upper portion of the casing close to the upper portion and communicated with a casing cavity for lubricating oil injection and pressure relief during working, the front blocking cover and the rear blocking cover are arranged in the front of and behind the casing cavity to form a closed cavity, the guide block is installed through the front blocking cover and the inner wall of the casing, a connecting cavity channel is arranged at a specific position on the front blocking cover, the guide block, the casing and the rear blocking cover, lubricating oil can flow through a bearing behind the closed centrifugal pump to form internal circulation, the bearing is lubricated and cooled, and heat exchange with the casing in the process of circulation is carried out.
The principle and the effect of the scheme are four: the closed centrifugal pump is installed at one end of the engine rotating shaft, the engine rotating shaft provides driving power for the engine rotating shaft to carry out circulating pressurization of lubricating oil, the closed centrifugal pump is directly connected to one end of the engine main shaft, the impeller pump is installed on the main shaft through the positioning sleeve and the locking nut, surplus power of the main shaft is extracted to drive the impeller pump, the lubricating oil in the case cavity is pressurized and sprayed to the bearing, and internal circulation of the lubricating oil is driven.
Compared with the prior art, the invention has the advantages that: the casing integrates the functions of elastic support and cold air convection heat exchange, reduces the number of parts, and the introduction of cold air not only ensures the heat dissipation of lubricating oil circulation, but also can maintain the temperature stability of the casing support structure. The power of the main shaft is directly extracted to drive the impeller pump, and the circulation of lubricating oil in the cavity is realized by matching with the openings of the cavity channels of all parts, so that the lubricating and heat dissipation effects are enhanced, and meanwhile, high pressure can be provided without depending on an external lubricating oil pump, and the indexes of accessories are reduced. The invention solves the problems of complex supporting structure and heavy lubricating system of the existing small turbine engine, and realizes the high-integration elastic supporting, lubricating oil internal circulation and high-efficiency heat exchange effects of the small turbine engine.
Preferably, the front blanking cover and the casing are sealed through a front rubber ring, and the rear blanking cover and the casing are sealed through a rear rubber ring.
Preferably, the engine rotating shaft transversely penetrates through the casing, one end of the engine rotating shaft is connected with the lock nut, the other side of the engine rotating shaft is connected with the rotor impeller, and the casing connected with the side of the rotor impeller is provided with an annular groove which rotates in a matched mode with the rotor impeller.
Preferably, two cross sections of the strip-shaped groove transversely penetrate through two sides of the casing, and one end of the strip-shaped groove is communicated with the annular groove.
As a preferred mode, the inner cavity is annular and is communicated with the upper side of the front plugging cover, the lower side of the front plugging cover, the guide block, the lower side of the rear plugging cover, the upper side of the rear plugging cover and the upper side of the front plugging cover in sequence.
Preferably, the positioning sleeve is detachably connected.
Compared with the prior art, the invention has the beneficial effects that:
(1) the invention solves the problems of complex supporting structure and heavy lubricating system of the existing small turbine engine, and realizes the high-integration elastic supporting, lubricating oil internal circulation and high-efficiency heat exchange effects of the small turbine engine.
(2) The front plug cover and the casing are sealed through the front rubber ring, and the rear plug cover and the casing are sealed through the rear rubber ring. The design of the front rubber ring enables the front plug cover and the casing to be connected more tightly, so that the side sliding oil leakage of the front end cover is avoided.
(3) The engine rotating shaft transversely penetrates through the casing, one end of the engine rotating shaft is connected with the locking nut, the other side of the engine rotating shaft is connected with the rotor impeller, and the casing connected with the side of the rotor impeller is provided with an annular groove which is matched with the rotor impeller to rotate. The rotor impeller rotates in the annular groove, so that the whole volume of the small turbine engine is reduced, and the structure of the device is more compact.
(4) The invention transversely penetrates through two sides of the casing through two sections of the strip-shaped groove, and one end of the strip-shaped groove is communicated with the annular groove. The cold air enters the strip-shaped groove through the side of the front plug cover, and then reaches the cooling effect of the lubricating oil in the inner cavity channel through the strip-shaped groove, and reaches the cooling of the rotor impeller when being discharged through the strip-shaped groove.
(5) The inner cavity is annular, and the upper side of the front plugging cover, the lower side of the front plugging cover, the guide block, the lower side of the rear plugging cover, the upper side of the rear plugging cover and the upper side of the front plugging cover are sequentially communicated. The design of the annular internal cavity channel ensures that the lubricating oil achieves the lubricating effect between the engine rotating shaft and the casing, between the engine rotating shaft and the positioning sleeve, between the engine rotating shaft and the closed centrifugal pump and between the engine rotating shaft and the bearing.
(6) The invention is detachably connected through the positioning sleeve, the positioning sleeve is arranged between the closed centrifugal pump and the bearing, the distance between the closed centrifugal pump and the bearing can be controlled by selecting the positioning sleeves with different length sizes to adapt to the length adjustment of the inner ring of the casing, the locking nut is arranged at the front end of the closed centrifugal pump to lock and install the closed centrifugal pump, the positioning sleeve and the bearing on the rotating shaft of the engine, and the rotating shaft of the engine provides driving power for the rotating shaft of the engine to drive lubricating oil circulation.
Drawings
FIG. 1 is a schematic view of a rotor supporting and lubricating integrated structure of a small turbine engine;
FIG. 2 is a schematic view of a flow path of a small turbine engine rotor support and lubrication integrated structure.
The labels in the figure are: 1-front rubber ring, 2-locking nut, 3-front plug cover, 4-closed centrifugal pump, 5-casing, 6-rotor impeller, 7-guide block, 8-bearing, 9-rear plug cover, 10-locating sleeve, 11-rear rubber ring, 12-engine rotating shaft, 13-strip groove, 14-internal cavity channel, 15-lubricating oil injection hole and 16-annular groove.
Detailed Description
The invention will be further described with reference to the accompanying drawings. Embodiments of the present invention include, but are not limited to, the following examples.
Example 1:
referring to fig. 1-2, the rotor supporting and lubricating integrated structure of the small turbine engine comprises a casing 5, an engine rotating shaft 12 is installed on the casing 5, a locking nut 2, a closed centrifugal pump 4, a positioning sleeve 10, a bearing 8, a rear plugging cover 9 and a rotor impeller 6 are sequentially and serially installed on the engine rotating shaft 12, a front plugging cover 3 connected with the casing 5 is arranged on one side, away from the rear plugging cover 9, of the locking nut 2, the front plugging cover 3, the casing 5 and the rear plugging cover 9 are in sealing connection, a strip-shaped groove 13 is formed in the casing 5 on the outer side of the engine rotating shaft 12, the position, at which the bearing 8 is installed on the casing 5, of the side wall of the casing 5 is in a cantilever form, a guide block 7 connected with the closed centrifugal pump 4 and the bearing 8 is arranged in a closed space formed by the front plugging cover 3, the rear plugging cover 9 and the casing 5, a closed space formed by the front plugging cover 3, the rear plugging cover 9 and the casing 5 is communicated with the gap between the front plugging cover 3 and the engine rotating shaft 12, An internal cavity channel 14 is arranged in a gap between the rear blocking cover 9 and the rotating shaft, the internal cavity channel 14 can be communicated with an inlet and an outlet of the closed centrifugal pump 4 and penetrates through the guide block 7 to be connected with the closed centrifugal pump 4 and the rotating shaft to form an internal circulation oil way, and a lubricating oil injection hole 15 communicated with the internal cavity channel 14 is formed in the casing 5.
The principle and effect of the scheme are as follows: the casing 5 is provided with a plurality of strip-shaped grooves 13, the rigidity of the bearing 8 support can be reduced through the strip-shaped grooves 13 to form an elastic support for the bearing 8, the position of the bearing 8 mounted on the casing 5 and a support plate on the casing 5 are in a cantilever form, the inner ring forming a cantilever structure on the casing 5 is provided with a plurality of strip-shaped grooves 13, the casing 5 forms different support rigidities by adjusting the number and the shape of the strip-shaped grooves 13, the elastic support effect is achieved, and the elastic support is used for adjusting the critical rotating speed of a turbine engine rotor and inhibiting vibration.
The principle and the effect of the scheme are as follows: the cold air is led into the strip-shaped groove 13 on the casing 5 to dissipate heat of the casing 5, the rotor impeller 6 and the internal lubricating oil, the cold air in front of the casing 5 can be guided by the strip-shaped groove 13 and flows out from a gap between the casing 5 and the rotor impeller 6 after flowing through the strip-shaped groove 13, the cold air carries out heat convection through the flow path, the lubricating oil heat in the cavity of the casing 5 is taken away, the cooling effect on the casing 5, the lubricating oil and the rotor impeller 6 is achieved, the casing 5 works in a stable temperature interval through air cooling, the elastic supporting effect is stabilized, and the stable operation of the rotor is guaranteed.
The principle and effect of the scheme are three: the casing 5, the front blocking cover 9, the rear blocking cover 9 and the guide block 7 are provided with an internal cavity channel 14 for communicating an external oil channel with the closed centrifugal pump 4 to form a circulating oil channel and enhance the heat exchange effect, an oil injection hole 15 is formed in the upper portion of the casing 5 close to the lower portion, a pressure relief hole is formed in the upper portion and communicated with the cavity of the casing 5 for filling oil and relieving pressure during working, the front blocking cover 9 and the rear blocking cover 9 are arranged in the front of and at the rear of the cavity of the casing 5 respectively to form a closed cavity, the guide block 7 is installed through the front blocking cover 3 and the inner wall of the casing 5, the front blocking cover 3, the guide block 7, the casing 5 and the rear blocking cover 9 are provided with connected cavity channels at specific positions, so that the oil can flow through the bearing 8 after the closed centrifugal pump 4 to form internal circulation, so as to lubricate and cool the bearing 8, and exchange heat with the casing 5 in the circulation process.
The principle and the effect of the scheme are four: the closed centrifugal pump 4 is installed at one end of an engine rotating shaft 12, the engine rotating shaft 12 provides driving power for the engine rotating shaft to carry out circulating pressurization of lubricating oil, the closed centrifugal pump 4 is directly connected to one end of an engine main shaft, the impeller pump is installed on the main shaft through the positioning sleeve 10 and the locking nut 2, surplus power of the main shaft is extracted to drive the impeller pump to pressurize the lubricating oil in a cavity of the casing 5, the lubricating oil is sprayed to the bearing 8, and driving of internal circulation of the lubricating oil is achieved.
Compared with the prior art, the invention has the advantages that: the casing 5 integrates the functions of elastic support and cold air convection heat exchange, reduces the number of parts, and the introduction of cold air not only ensures the heat dissipation of lubricating oil circulation, but also can maintain the temperature stability of the supporting structure of the casing 5. The power of the main shaft is directly extracted to drive the impeller pump, and the circulation of lubricating oil in the cavity is realized by matching with the openings of the cavity channels of all parts, so that the lubricating and heat dissipation effects are enhanced, and meanwhile, high pressure can be provided without depending on an external lubricating oil pump, and the indexes of accessories are reduced. The invention solves the problems of complex supporting structure and heavy lubricating system of the existing small turbine engine, and realizes the high-integration elastic supporting, lubricating oil internal circulation and high-efficiency heat exchange effects of the small turbine engine.
Example 2:
the embodiment is further optimized on the basis of the embodiment 1, and specifically comprises the following steps:
the front blocking cover 3 and the casing 5 are sealed through the front rubber ring 1, and the rear blocking cover 9 and the casing 5 are sealed through the rear rubber ring 11. The design of the front rubber ring 1 enables the front plug cover 3 to be connected with the casing 5 more tightly, so that the leakage of the side lubricating oil of the front end cover is avoided, and the design of the rear plug cover 9 enables the connection between the dog end cover and the casing 5 to be more tightly, so that the leakage of the side lubricating oil of the rear plug cover 9 is avoided.
Preferably, the engine rotating shaft 12 transversely penetrates through the casing 5, one end of the engine rotating shaft 12 is connected with the lock nut 2, the other side of the engine rotating shaft 12 is connected with the rotor impeller 6, and the casing 5 connected with the rotor impeller 6 is provided with an annular groove 16 which is matched with the rotor impeller 6 to rotate. The rotor impeller 6 rotates in the annular groove 16, so that the whole volume of the small turbine engine is reduced, and the structure of the device is more compact.
Preferably, the two sections of the strip-shaped groove 13 transversely penetrate the two sides of the casing 5, and one end of the strip-shaped groove 13 is communicated with the annular groove 16. Cold air enters the strip-shaped groove 13 through the side of the front plug cover 3, and then reaches the cooling effect of the lubricating oil in the internal cavity channel 14 through the strip-shaped groove 13, and reaches the cooling of the rotor impeller 6 when being discharged through the strip-shaped groove 13.
Preferably, the inner channel 14 is annular and sequentially communicates with the upper side of the front cap 3, the lower side of the front cap 3, the guide block 7, the lower side of the rear cap 9, the upper side of the rear cap 9 and the upper side of the front cap 3. The design of the annular internal cavity channel 14 enables the lubricating oil to achieve the lubricating effect between the engine rotating shaft 12 and the engine case 5, between the engine rotating shaft 12 and the positioning sleeve 10, between the engine rotating shaft 12 and the closed centrifugal pump 4, and between the engine rotating shaft 12 and the bearing 8.
As a preferred mode, the locating sleeve 10 can be detachably connected, the locating sleeve 10 is installed between the closed centrifugal pump 4 and the bearing 8, the locating sleeve 10 with different length sizes can be selected to control the distance between the closed centrifugal pump 4 and the bearing 8 so as to adapt to the length adjustment of an inner ring of the casing 5, the locking nut 2 is arranged at the front end of the closed centrifugal pump 4 to lock and install the closed centrifugal pump 4, the locating sleeve 10 and the bearing 8 on the engine rotating shaft 12, and the engine rotating shaft 12 provides driving power for the engine rotating shaft to drive lubricating oil to circulate.
The other parts of this embodiment are the same as embodiment 1, and are not described herein again.
The above is an embodiment of the present invention. The embodiments and specific parameters in the embodiments are only used for clearly illustrating the verification process of the present invention, and are not used for limiting the scope of the present invention, which is defined by the claims, and all the equivalent structural changes made by using the contents of the description and the drawings of the present invention should be included in the scope of the present invention.
Claims (4)
1. Small-size turbine engine rotor supporting, lubricated integrative structure, including quick-witted casket (5), install engine shaft (12) on quick-witted casket (5), go up in order in engine shaft (12) and cluster and be equipped with lock nut (2), closed centrifugal pump (4), position sleeve (10), bearing (8), back blanking cover (9) and rotor wheel (6), one side that back blanking cover (9) were kept away from in lock nut (2) is equipped with preceding blanking cover (3) of being connected with quick-witted casket (5), and sealing connection between preceding blanking cover (3), quick-witted casket (5), the back blanking cover (9), its characterized in that, be equipped with bar groove (13) on quick-witted casket (5) in the engine shaft (12) outside, the structure of installing bearing (8) and quick-witted casket (5) lateral wall are a cantilever form on quick-witted casket (5), be equipped with in the airtight space that connects centrifugal pump (4) and closed centrifugal pump (5) are established in preceding blanking cover (3), back blanking cover (9), quick-witted casket (5) formation, A guide block (7) of a bearing (8), wherein a closed space formed by the front blanking cover (3), the rear blanking cover (9) and the casing (5) is provided with an internal cavity channel (14) which is communicated with a gap between the front blanking cover (3) and an engine rotating shaft (12) and a gap between the rear blanking cover (9) and the rotating shaft, the internal cavity channel (14) can be communicated with an inlet and an outlet of the closed centrifugal pump (4) and penetrates through the guide block (7) to connect the closed centrifugal pump (4) and the rotating shaft to form an internal circulation oil circuit, a lubricating oil injection hole (15) communicated with the internal cavity channel (14) is arranged on the casing (5), two cross sections of the strip-shaped groove (13) transversely penetrate through two sides of the casing (5) and is connected with an annular groove (16) which is matched and rotates with the rotor impeller (6) on the casing (5) on the side of the rotor impeller (6), one end of the strip-shaped groove (13) is communicated with the annular groove (16), and the internal cavity channel (14) is annular, the upper side of the front plugging cover (3), the lower side of the front plugging cover (3), the guide block (7), the lower side of the rear plugging cover (9), the upper side of the rear plugging cover (9) and the upper side of the front plugging cover (3) are communicated in sequence.
2. The small turbine engine rotor supporting and lubricating integrated structure according to claim 1, characterized in that the front plug cover (3) and the casing (5) are sealed through a front rubber ring (1), and the rear plug cover (9) and the casing (5) are sealed through a rear rubber ring (11).
3. The small turbine engine rotor supporting and lubricating integrated structure as recited in claim 2, characterized in that the engine rotating shaft (12) transversely penetrates through a casing (5), a lock nut (2) is connected to one end of the engine rotating shaft (12), and a rotor impeller (6) is connected to the other side of the engine rotating shaft (12).
4. The small turbine engine rotor supporting and lubricating integrated structure as recited in claim 1, characterized in that the locating sleeve (10) is detachably attached.
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| CN201911145766.8A CN110671160B (en) | 2019-11-20 | 2019-11-20 | Rotor supporting and lubricating integrated structure of small turbine engine |
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| CN201911145766.8A CN110671160B (en) | 2019-11-20 | 2019-11-20 | Rotor supporting and lubricating integrated structure of small turbine engine |
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| CN110671160B true CN110671160B (en) | 2021-11-26 |
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| CN111927580B (en) * | 2020-08-12 | 2023-07-11 | 中国人民解放军第五七一九工厂 | Aeroengine turbine casing alignment structure and installation method |
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| US4605101A (en) * | 1984-12-10 | 1986-08-12 | Teledyne Industries, Inc. | Self-contained turbine engine lubrication system |
| US6327857B1 (en) * | 1997-10-23 | 2001-12-11 | Carl Fredriksson | Device, method and application in connection with a turbomachine and pumping and lubricating arrangement in connection with such a machine |
| CN103075248A (en) * | 2013-01-09 | 2013-05-01 | 黄荣嵘 | Turbine rotor energy-saving engine |
| CN203532274U (en) * | 2013-11-15 | 2014-04-09 | 新乡北方液压传动机械有限公司 | Integrated centrifugal fuel pump |
| KR20170021207A (en) * | 2015-08-17 | 2017-02-27 | 정현욱 | Gas turbine engine with oil pump assembly |
-
2019
- 2019-11-20 CN CN201911145766.8A patent/CN110671160B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4605101A (en) * | 1984-12-10 | 1986-08-12 | Teledyne Industries, Inc. | Self-contained turbine engine lubrication system |
| US6327857B1 (en) * | 1997-10-23 | 2001-12-11 | Carl Fredriksson | Device, method and application in connection with a turbomachine and pumping and lubricating arrangement in connection with such a machine |
| CN103075248A (en) * | 2013-01-09 | 2013-05-01 | 黄荣嵘 | Turbine rotor energy-saving engine |
| CN203532274U (en) * | 2013-11-15 | 2014-04-09 | 新乡北方液压传动机械有限公司 | Integrated centrifugal fuel pump |
| KR20170021207A (en) * | 2015-08-17 | 2017-02-27 | 정현욱 | Gas turbine engine with oil pump assembly |
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