CN116707232A - Automatic tripping device of aero-generator - Google Patents
Automatic tripping device of aero-generator Download PDFInfo
- Publication number
- CN116707232A CN116707232A CN202310675940.XA CN202310675940A CN116707232A CN 116707232 A CN116707232 A CN 116707232A CN 202310675940 A CN202310675940 A CN 202310675940A CN 116707232 A CN116707232 A CN 116707232A
- Authority
- CN
- China
- Prior art keywords
- generator
- shaft
- frit
- roller
- tripping
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000002844 melting Methods 0.000 claims abstract description 12
- 230000008018 melting Effects 0.000 claims abstract description 12
- 238000009434 installation Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000011084 recovery Methods 0.000 claims 2
- 239000012943 hotmelt Substances 0.000 abstract description 16
- 239000000155 melt Substances 0.000 abstract description 5
- 230000001960 triggered effect Effects 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 10
- 230000002159 abnormal effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000010687 lubricating oil Substances 0.000 description 3
- 238000010248 power generation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000011089 mechanical engineering Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/25—Devices for sensing temperature, or actuated thereby
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention provides an automatic tripping device of an aero-generator, which comprises a generator shaft and a rear end cover connected with the generator shaft through a cam; the rear end cover is internally provided with a hot oil chamber and a tripping triggering structure, and the tripping triggering structure is positioned at one side of the hot oil chamber; the tripping triggering structure comprises a shell, wherein a roller releasing part and a hot melting triggering part are arranged in the shell, the roller releasing part comprises a roller raceway arranged in the shell, one end of the roller raceway is provided with a spring baffle, and one side of the spring baffle is connected with a roller through a release spring; the hot melt trigger part comprises a frit baffle and a frit cylinder body buckled outside the frit baffle, and the frit baffle and the frit cylinder body form an inner cavity of the hot melt trigger part. When the internal temperature of the oil-cooled generator is too high, the hot frit in the tripping triggering structure melts at the critical temperature, and the tripping device is triggered, so that the generator is separated from the power source, and the generator is protected from being burnt out due to bearing faults and the power source is damaged due to generator faults.
Description
Technical Field
The invention relates to an automatic tripping device for an aero-generator, belongs to the technical field of mechanical engineering, and is suitable for the aero-generator.
Background
Along with the continuous updating of aerospace weaponry, the power and rotating speed requirements of each aircraft on aero-generators are higher and higher, generators cooled by aviation lubricating oil become the main development flow, and meanwhile, the requirements on the health management of power generation systems and power systems are higher and higher.
Therefore, when the internal temperature rise of the generator is abnormal, the power source can be timely disconnected, the motor is protected from being burnt, the power source cannot be destroyed due to the problem of a power generation system, and the design tripping device of the aero motor has become a mainstream development trend.
Disclosure of Invention
In order to solve the technical problems, the invention provides an automatic tripping device of an aero-generator.
The invention is realized by the following technical scheme.
The invention provides an automatic tripping device of an aero-generator, which comprises a generator shaft and a rear end cover connected with the generator shaft through a cam; the rear end cover is internally provided with a hot oil chamber and a tripping triggering structure, and the tripping triggering structure is positioned at one side of the hot oil chamber; the tripping triggering structure comprises a shell, wherein a roller releasing part and a hot melting triggering part are arranged in the shell, the roller releasing part comprises a roller raceway arranged in the shell, one end of the roller raceway is provided with a spring baffle, and one side of the spring baffle is connected with a roller through a release spring; the hot melt trigger part comprises a frit baffle and a frit cylinder body buckled outside the frit baffle, and the frit baffle and the frit cylinder body form an inner cavity of the hot melt trigger part; the inner cavity of the hot melt trigger part is provided with a hot melt block positioned at one end of the melt block baffle plate, and a bayonet lock is arranged on the hot melt block; the clamping pin is sleeved with a restoring spring, the restoring spring is positioned between the clamping pin and the frit cylinder, and the top of the clamping pin penetrates through the roller rollaway nest to be contacted with one end of the roller.
The roller release part and the hot melting trigger part are fixed in the shell through screws, and sealing rings are arranged among the roller release part, the hot melting trigger part and the shell; the spring baffle is fixed at one end of the roller race through a fixing screw.
The front end of the generator shaft is connected with a power source, the middle of the generator shaft is connected with a generator rotor, and the rear end of the generator shaft is connected with a cam.
The generator shaft is a combined shaft, the combined shaft comprises a hollow shaft and an elastic shaft connected with the hollow shaft, the hollow shaft is connected with a generator rotor, and a cam is fixed at the end part of the hollow shaft through a screw; the elastic shaft comprises a spline shaft, a first spline is arranged at one end of the spline shaft, and a second spline is arranged at the other end of the spline shaft.
The first spline is connected with a power source, and the second spline is connected with the hollow shaft.
The cam is connected with the elastic shaft through a tripping pull rod.
The end part of the tripping pull rod is provided with threads and is connected with the cam, and the tail part of the tripping pull rod is connected with the spline shaft through a universal joint.
The universal joint comprises a first pin and a second pin which are arranged at the tail part of a tripping pull rod, one sides of the first pin and the second pin are provided with a transfer disc which is sleeved on the tripping pull rod, the other sides of the first pin and the second pin are provided with another transfer disc which is connected with a spline shaft, and each transfer disc is provided with a plurality of evenly distributed threaded holes.
The rear end cover is provided with an installation interface of a tripping triggering structure, and the tripping triggering structure is detachably connected with the rear end cover through a screw.
The cam is internally provided with threads, and the cam is connected with a generator shaft through the threads.
The invention has the beneficial effects that: when the internal temperature of the oil-cooled generator is too high, the thermal frit in the tripping triggering structure melts at the critical temperature, and the tripping device is triggered, so that the generator is separated from the power source, and the generator is protected from being burnt out due to bearing faults and the power source is damaged due to generator faults.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the rear end cap of FIG. 1;
FIG. 3 is a schematic diagram of the trip trigger structure of FIG. 1;
FIG. 4 is a schematic diagram of the structure of roller release in the trip trigger structure of the present invention;
FIG. 5 is a schematic structural view of the generator shaft of FIG. 1;
FIG. 6 is a schematic view of the gimbal of FIG. 5;
in the figure: 1-generator shaft, 12-first spline, 13-second spline, 14-spline shaft, 2-rear end cover, 3-hot oil chamber, 4-cam, 5-trip triggering structure, 51-roller, 52-release spring, 53-spring retainer, 54-set screw, 55-housing, 56-roller raceways, 57-bayonet locks, 58-frit barrels, 59-return springs, 510-thermal frit, 511-frit baffles, 6-universal joints, 61-first pins, 62-second pins, 63-adapter plates, 64-threaded holes, 7-trip levers.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the above.
An aero-generator automatic tripping device as shown in fig. 1 to 6 comprises a generator shaft 1 and a rear end cover 2 connected with the generator shaft 1 through a cam 4; the rear end cover 2 is internally provided with a hot oil chamber 3 and a tripping triggering structure 5, and the tripping triggering structure 5 is positioned on one side of the hot oil chamber 3, so that abnormal high-temperature oil heat can be more rapidly conducted to the tripping triggering structure 5; the trip triggering structure 5 comprises a shell 55, wherein a roller releasing part and a hot melting triggering part are arranged in the shell 55, the roller releasing part comprises a roller raceway 56 arranged in the shell 55, a spring baffle 53 is arranged at one end of the roller raceway 56, and one side of the spring baffle 53 is connected with a roller 51 through a release spring 52; the hot melt trigger part comprises a frit baffle 511 and a frit cylinder 58 buckled outside the frit baffle 511, and the frit baffle 511 and the frit cylinder 58 form an inner cavity of the hot melt trigger part; the inner cavity of the hot melt trigger part is provided with a hot melt block 510 positioned at one end of a melt block baffle 511, and a bayonet 57 is arranged on the hot melt block 510; the bayonet 57 is sleeved with a restoring spring 59, the restoring spring 59 is located between the bayonet 57 and the frit cylinder 58, and the top of the bayonet 57 penetrates through the roller race 56 to be in contact with one end of the roller 51.
Further, when the thermal frit 510 melts, the restoring spring 59 in a compressed state is restored, the bayonet 57 is retracted, the roller 51 is released by the release spring 52, and enters the inside of the rear end cap 2 along the roller race 56, and the trip action is triggered.
The roller release part and the hot melt trigger part are fixed in the shell 55 through screws, and sealing rings are arranged among the roller release part, the hot melt trigger part and the shell 55 to prevent the hot melt block 510 from entering the hot melt chamber 3 after being melted; the spring retainer 53 is secured to one end of the roller race 56 by a set screw 54.
The front end of the generator shaft 1 is connected with a power source, the middle is connected with a generator rotor, and the rear end is connected with a cam 4.
The generator shaft 1 is a combined shaft, the combined shaft comprises a hollow shaft and an elastic shaft connected with the hollow shaft, the hollow shaft is connected with a generator rotor, and the cam 4 is fixed at the end part of the hollow shaft through a screw; the elastic shaft comprises a spline shaft 14, a first spline 12 is arranged at one end of the spline shaft 14, and a second spline 13 is arranged at the other end of the spline shaft.
The first spline 12 is connected with a power source, and the second spline 13 is connected with a hollow shaft.
The cam 4 is connected with an elastic shaft through a tripping pull rod 7.
The end of the tripping pull rod 7 is provided with threads and is connected with the cam 4, and the tail of the tripping pull rod 7 is connected with the spline shaft 14 through the universal joint 6.
The universal joint 6 comprises a first pin 61 and a second pin 62 which are arranged at the tail part of the tripping pull rod 7, one side of the first pin 61 and one side of the second pin 62 are provided with a switching disc 63 which is sleeved on the tripping pull rod 7, the other side of the first pin and the second pin is provided with another switching disc 63 which is connected with the spline shaft 14, and each switching disc 63 is provided with a plurality of evenly distributed threaded holes 64.
The rear end cover 2 is provided with an installation interface of a tripping triggering structure 5, and the tripping triggering structure 5 is detachably connected with the rear end cover 2 through screws.
The cam 4 is internally provided with threads, and the cam 4 is connected with the generator shaft 1 through the threads.
Specifically, the rear end cap 2 serves as a support member and the hot oil chamber 3 provides a trigger condition.
Specifically, the tripping triggering structure 5 is an independent structure, so that the generator is convenient to replace and maintain.
Specifically, the spline shaft 14 is used for power transmission between a power source and a generator.
Specifically, the trip lever 7 is used to disengage the spline shaft 14 from the power source when tripped.
Specifically, the universal joint 6 can deflect freely, and is used for compensating the coaxiality of the tripping pull rod 7 and the spline shaft 14 during tripping.
Preferably, the universal joint 6 is adopted between the tripping pull rod 7 and the spline shaft 14, so that the problems of jamming and tripping failure during tripping are avoided.
Preferably, the cam 4 is screwed into the trip bar 7, while the cam 4 is fastened to the hollow shaft using screws.
Further, during normal operation, the generator shaft 1 drives the generator rotor to rotate together, and the cam 4 is fixed on the hollow shaft and rotates together with the generator shaft 1; when the internal temperature of the generator is abnormal, the temperature of the motor cooling lubricating oil rises, the temperature of the hot oil chamber 3 in the rear end cover 2 rises, the temperature of the tripping triggering structure 5 rises, the internal hot frit 510 is melted, therefore, the compressed restoring spring 59 restores, the bayonet 57 for limiting the roller 51 is retracted, the roller 51 in the roller race 56 is ejected and released due to the acting force of the releasing spring 52, the released roller 51 enters the rear end cover 2 along the roller race 56, at the moment, the convex edge of the cam 4 is clamped by the roller 51, the cam 4 cannot rotate, at the moment, the generator shaft 1 continuously rotates, the thread at the tail end of the generator shaft 1 is continuously screwed into the cam 4, and the thread acting force drives the generator shaft 1 out of one end of the power source.
In summary, when the temperature of the oil in the generator is too high, the tripping triggering structure can rapidly respond and be promptly separated from the power source; the hot oil chamber 3 can more rapidly transfer the temperature of the motor to the tripping triggering structure, and timely and accurately trigger response; the independent tripping triggering structure and the motor can be assembled together for use, and when the motor is replaced, the motor can be reused only by replacing the tripping triggering structure with a new one; in the tripping triggering structure, the roller release part and the hot melting triggering part are independently designed, and melted liquid cannot enter the generator to pollute aviation lubricating oil.
Claims (10)
1. The utility model provides an aero-generator automatic tripping device, includes generator shaft (1) and rear end cap (2) that are connected with generator shaft (1) through cam (4), be equipped with hot oil chamber (3) and trip trigger structure (5) in rear end cap (2), trip trigger structure (5) are located one side of hot oil chamber (3), its characterized in that: the tripping triggering structure (5) comprises a shell (55), wherein a roller releasing part and a hot melting triggering part are arranged in the shell (55), the roller releasing part comprises a roller raceway (56) arranged in the shell (55), a spring baffle plate (53) is arranged at one end of the roller raceway (56), and one side of the spring baffle plate (53) is connected with a roller (51) through a release spring (52); the hot melting trigger part comprises a frit baffle (511) and a frit cylinder (58) which is buckled outside the frit baffle (511), and the frit baffle (511) and the frit cylinder (58) form an inner cavity of the hot melting trigger part; the inner cavity of the hot melting trigger part is provided with a hot frit (510) positioned at one end of a frit baffle plate (511), and a bayonet lock (57) is arranged on the hot frit (510); the clamping pin (57) is sleeved with a recovery spring (59), the recovery spring (59) is located between the clamping pin (57) and the frit cylinder (58), and the top of the clamping pin (57) penetrates through the roller rollaway nest (56) to be in contact with one end of the roller (51).
2. The aircraft generator automatic trip device according to claim 1, wherein: the roller release part and the hot melting trigger part are fixed in the shell (55) through screws, and sealing rings are arranged among the roller release part, the hot melting trigger part and the shell (55); the spring baffle plate (53) is fixed at one end of the roller race (56) through a fixing screw (54).
3. The aircraft generator automatic trip device according to claim 1, wherein: the front end of the generator shaft (1) is connected with a power source, the middle of the generator shaft is connected with a generator rotor, and the rear end of the generator shaft is connected with a cam (4).
4. The aircraft generator automatic trip device according to claim 1, wherein: the generator shaft (1) is a combined shaft, the combined shaft comprises a hollow shaft and an elastic shaft connected with the hollow shaft, the hollow shaft is connected with a generator rotor, and a cam (4) is fixed at the end part of the hollow shaft through a screw; the elastic shaft comprises a spline shaft (14), a first spline (12) is arranged at one end of the spline shaft (14), and a second spline (13) is arranged at the other end of the spline shaft.
5. The aircraft generator automatic trip device according to claim 4, wherein: the first spline (12) is connected with a power source, and the second spline (13) is connected with the hollow shaft.
6. The aircraft generator automatic trip device according to claim 1, wherein: the cam (4) is connected with the elastic shaft through a tripping pull rod (7).
7. The aircraft generator automatic trip device according to claim 6, wherein: the end part of the tripping pull rod (7) is provided with threads and is connected with the cam (4), and the tail part of the tripping pull rod (7) is connected with the spline shaft (14) through the universal joint (6).
8. The aircraft generator automatic trip device according to claim 7, wherein: the universal joint (6) comprises a first pin (61) and a second pin (62) which are arranged at the tail part of the tripping pull rod (7), one side of the first pin (61) and one side of the second pin (62) are provided with a switching disc (63) which is sleeved on the tripping pull rod (7), the other side of the first pin is provided with another switching disc (63) which is connected with the spline shaft (14), and each switching disc (63) is provided with a plurality of evenly distributed threaded holes (64).
9. The aircraft generator automatic trip device according to claim 1, wherein: the rear end cover (2) is provided with an installation interface of a tripping triggering structure (5), and the tripping triggering structure (5) is detachably connected with the rear end cover (2) through screws.
10. The aircraft generator automatic trip device according to claim 1, wherein: the cam (4) is internally provided with threads, and the cam (4) is connected with the generator shaft (1) through the threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310675940.XA CN116707232A (en) | 2023-06-08 | 2023-06-08 | Automatic tripping device of aero-generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310675940.XA CN116707232A (en) | 2023-06-08 | 2023-06-08 | Automatic tripping device of aero-generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116707232A true CN116707232A (en) | 2023-09-05 |
Family
ID=87832081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310675940.XA Pending CN116707232A (en) | 2023-06-08 | 2023-06-08 | Automatic tripping device of aero-generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116707232A (en) |
-
2023
- 2023-06-08 CN CN202310675940.XA patent/CN116707232A/en active Pending
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