CN203477178U - Torsional vibration-damping device of high-power aero direct-current generator - Google Patents
Torsional vibration-damping device of high-power aero direct-current generator Download PDFInfo
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- CN203477178U CN203477178U CN201320594697.0U CN201320594697U CN203477178U CN 203477178 U CN203477178 U CN 203477178U CN 201320594697 U CN201320594697 U CN 201320594697U CN 203477178 U CN203477178 U CN 203477178U
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- generator
- disk
- transmission shaft
- powder metallurgy
- torsional vibration
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Abstract
The utility model relates to a torsional vibration-damping device of a high-power aero direct-current generator. The torsional vibration-damping device of the high-power aero direct-current generator is characterized in that a transmission shaft of the generator is sleeved with a rigid damping disk, a friction sheet, an elastic dumping disk and a powder metallurgy lining, an inner hole of the powder metallurgy lining is of a number five Brown and Sharpe cone structure, the powder metallurgy lining is installed on the transmission shaft of the generator in a press fitting mode through the number five Brown and Sharpe cone structure, an inner hole of the elastic damping disk is matched with the powder metallurgy lining through an involute spline tooth side, a hollow shaft is sleeved with the rigid damping disk, and the friction sheet is placed between the rigid damping disk and the elastic dumping disk. According to the torsional vibration-damping device of the high-power aero direct-current generator, the hollow shaft and the transmission shaft are respectively of a composite type structure, and the torsional vibration-damping device is arranged between the hollow shaft and the transmission shaft in order to restrain the transmission amplitude of the transmission shaft, so that the influence of abnormal shock and vibration of an engine on the generator is reduced, and normal work of the generator is guaranteed.
Description
Technical field
The invention belongs to aviation power system, be specifically related to a kind of high-power aviation DC generator torsional oscillation-vibration damping equipment.
Background technique
For low-voltage DC supply system, generally by DC generator and generator control box and main contactor, formed, the direct current of certain capacity is provided to electrical network on machine.Aboard, DC generator is installed on the accessory drive gearbox of motor, by engine-driving.DC generator is designed to the composite structure of transmission shaft and hollow shaft, middle by involute splines or the connection of cone-bond structure, transmission shaft is connected to come transmitting torque with the inner sleeve tooth of motor by involute splines, and the feature of this structure is that transmission shaft can cushion the impact on generator such as certain motor shock and vibration.For powerful generator, be particularly used in the generator on trainer aircraft, in actual use, training plane effectiveness more frequently and frequently occurs climbing, motor-driven large turning, the recurrence of diving, land such as fly at the various flight trainings actions, make shock and vibration and the change in torque of motor larger, thereby cause generator operation very not steady, affect the normal operation of generator, so should take necessary measure to eliminate or reduce its impact, guarantee completing of flight safety and training mission.
Summary of the invention
The technical problem solving
For fear of the deficiencies in the prior art part, the present invention proposes a kind of high-power aviation DC generator torsional oscillation-vibration damping equipment, driving end in powerful aviation DC generator, in order to suppress transmission shaft driven amplitude, between hollow shaft and transmission shaft, be provided with torsional oscillation-vibration damping equipment, the impact of the abnormal shock and vibration that reduces motor on generator, guarantees the normal operation of generator.
Technological scheme
High-power aviation DC generator torsional oscillation-vibration damping equipment, is characterized in that comprising rigidity damping disk(-isc) 1, friction plate 2, dampener disk 3 and powder metallurgy lining 4; Rigidity damping disk(-isc) 1, friction plate 2, dampener disk 3 and powder metallurgy lining 4 are all enclosed within on the transmission shaft 5 of generator, and the endoporus of powder metallurgy lining 4 is No. 5 Blang-Sha Bi cone structures, and No. 5 Blang-Sha Bi cone structure is fitted on the transmission shaft 5 of generator; The endoporus of dampener disk 3 relies on involute splines flank to coordinate with powder metallurgy lining 4, and rigidity damping disk(-isc) 1 is enclosed within on hollow shaft 6; Friction plate 2 is placed between rigidity damping disk(-isc) 1 and dampener disk 3.
No. 5 Blang-Sha Bi cone structures of described powder metallurgy lining 4 endoporus are 90mm position apart from the end face of the transmission shaft of generator.
The end face of described dampener disk 3 is 1.5mm to the end face distance of hollow shaft.
Beneficial effect
A kind of high-power aviation DC generator torsional oscillation-vibration damping equipment that the present invention proposes, except hollow shaft and transmission shaft are designed to composite structure, in order to suppress transmission shaft driven amplitude, between hollow shaft and transmission shaft, be provided with torsional oscillation-vibration damping equipment, the impact of the abnormal shock and vibration that can reduce motor on generator, guarantees the normal operation of generator.
Accompanying drawing explanation
Fig. 1: DC generator torsional oscillation-vibration damping structure schematic diagram of the present invention;
Fig. 2: the structural representation of powder metallurgy lining 4;
Fig. 3: generator drive axle schematic diagram;
Fig. 4: the structural representation of rigidity vibration damping 1;
Fig. 5: the structural representation of dampener disk 3;
A: plan view, b: side view
Fig. 6: the structural representation of friction plate 2;
A: plan view, b: side view;
1-rigidity damping disk(-isc) leans on, 2-friction plate, 3-dampener disk, 4-powder metallurgy lining, the transmission shaft of 5-generator, 6-hollow shaft, the endoporus of a-powder metallurgy lining, b-involute splines, the axle head of the transmission shaft of c-generator, d-is the position apart from 90mm apart from axial end, the endoporus that e-rigidity damping disk(-isc) leans on, the seam that f-rigidity damping disk(-isc) leans on, the endoporus of g-dampener disk.
Embodiment
Now in conjunction with the embodiments, the invention will be further described for accompanying drawing:
Torsional oscillation-the vibration damping equipment of the present embodiment is comprised of a lining, two damping disk(-isc)s and a friction plate.Bushing press-mounting, on transmission shaft, is fixed a dampener disk on lining, is that cylindrical straight gear involute splines flank coordinates between the two; Another rigidity damping disk(-isc) is fitted on hollow shaft, and friction plate is placed between two damping disk(-isc)s.Between lining and transmission shaft, between rigidity damping disk(-isc) and hollow shaft, all adopt Blang-Sha Bi cone to press-fit to coordinate (see figure 1).
Rigidity damping disk(-isc) leans on 1 endoporus, sees that the position of label e relies on No. 7 Blang-Sha Bi cones cooperations to be fitted in hollow shaft 6, guarantees that its end face is to the end face distance 1.5mm of hollow shaft.
Concrete installation process:
1, powder metallurgy lining (part 4) is fitted in to transmission shaft (part 5) above, guarantees the axial dimension of regulation, form shaft assembly;
2, rigidity damping disk(-isc) (part 1) is fitted in to hollow shaft (part 6) above, guarantees the axial dimension of regulation;
3, dampener disk (part 3) is packed on the tooth of powder metallurgy lining (part 4), and friction plate (part 2) is inserted in to shaft assembly;
4, the shaft assembly that is above-mentioned formation by transmission shaft (part 5) stretches in hollow shaft (part 6), at non-transmision end, tightens up transmission shaft (part 5); When tightening up transmission shaft (part 5), guarantee that friction plate (part 2) is not eccentric, visual dampener disk (part 3) is straight not recessed.
When the transmission of aviation DC generator and motor, by the neck bush of generator shaft and motor, with cylinder involute tooth, be measured incompatible realization.The axle of generator is designed to the composite structure of transmission shaft and hollow shaft, transmission shaft is connected by involute splines or cone-bond structure with hollow shaft, transmission shaft is connected to come transmitting torque with the inner sleeve tooth of motor by involute splines, and the feature of this structure is that transmission shaft is that elastic axis can cushion the impact on generator such as certain shock and vibration of motor.The present invention relates to a kind of high-power aviation DC generator, except taking combined type axle construction, in order to suppress transmission shaft driven amplitude, between the driving end of transmission shaft and hollow shaft, be provided with torsional oscillation-vibration damping equipment.
Claims (3)
1. high-power aviation DC generator torsional oscillation-vibration damping equipment, is characterized in that comprising rigidity damping disk(-isc) (1), friction plate (2), dampener disk (3) and powder metallurgy lining (4); Rigidity damping disk(-isc) (1), friction plate (2), dampener disk (3) and powder metallurgy lining (4) are all enclosed within on the transmission shaft (5) of generator, the endoporus of powder metallurgy lining (4) is No. 5 Blang-Sha Bi cone structures, and No. 5 Blang-Sha Bi cone structure is fitted on the transmission shaft (5) of generator; The endoporus of dampener disk (3) relies on involute splines flank to coordinate with powder metallurgy lining (4), and rigidity damping disk(-isc) (1) is enclosed within on hollow shaft (6); Friction plate (2) is placed between rigidity damping disk(-isc) (1) and dampener disk (3).
2. high-power aviation DC generator torsional oscillation-vibration damping equipment according to claim 1, is characterized in that: No. 5 Blang-Sha Bi cone structures of described powder metallurgy lining (4) endoporus are 90mm position apart from the end face of the transmission shaft of generator.
3. high-power aviation DC generator torsional oscillation-vibration damping equipment according to claim 1, is characterized in that: the end face of described dampener disk (3) is 1.5mm to the end face distance of hollow shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320594697.0U CN203477178U (en) | 2013-09-25 | 2013-09-25 | Torsional vibration-damping device of high-power aero direct-current generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320594697.0U CN203477178U (en) | 2013-09-25 | 2013-09-25 | Torsional vibration-damping device of high-power aero direct-current generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203477178U true CN203477178U (en) | 2014-03-12 |
Family
ID=50225512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320594697.0U Expired - Lifetime CN203477178U (en) | 2013-09-25 | 2013-09-25 | Torsional vibration-damping device of high-power aero direct-current generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203477178U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103486196A (en) * | 2013-09-25 | 2014-01-01 | 陕西航空电气有限责任公司 | Torsional vibration and damping device for high-power direct current aero-generators |
-
2013
- 2013-09-25 CN CN201320594697.0U patent/CN203477178U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103486196A (en) * | 2013-09-25 | 2014-01-01 | 陕西航空电气有限责任公司 | Torsional vibration and damping device for high-power direct current aero-generators |
| CN103486196B (en) * | 2013-09-25 | 2015-08-12 | 陕西航空电气有限责任公司 | High-power aviation DC generator torsional oscillation-vibration damping equipment |
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