CN210867361U - Environment-resistant speed measurement generator for aeroengine - Google Patents
Environment-resistant speed measurement generator for aeroengine Download PDFInfo
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- CN210867361U CN210867361U CN201922058299.7U CN201922058299U CN210867361U CN 210867361 U CN210867361 U CN 210867361U CN 201922058299 U CN201922058299 U CN 201922058299U CN 210867361 U CN210867361 U CN 210867361U
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- 238000005259 measurement Methods 0.000 title description 2
- 238000007789 sealing Methods 0.000 claims abstract description 59
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- 239000000463 material Substances 0.000 claims description 14
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- 238000004804 winding Methods 0.000 claims description 6
- 238000004512 die casting Methods 0.000 claims description 5
- 108090000565 Capsid Proteins Proteins 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- -1 polytetrafluoroethylene Polymers 0.000 claims description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 4
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- 238000003825 pressing Methods 0.000 description 5
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- 238000012544 monitoring process Methods 0.000 description 3
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- 239000003292 glue Substances 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
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- 230000009286 beneficial effect Effects 0.000 description 1
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- 239000010935 stainless steel Substances 0.000 description 1
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Abstract
The utility model provides a resistant environment tachogenerator for aeroengine has solved current tachogenerator and has failed in intensity, temperature resistant, corrosion-resistant and sealed aspect to accomplish the problem of compromise. The speed measuring generator comprises a front shell, a rotor, a stator, a rear shell, a locking nut, a connecting nut, a ball, a sealing plug, a connector, a shaft end nut, an end sleeve, a sealing assembly, a sealing ring, a sealing gasket, a rear cover and a blocking cover. The utility model discloses a tachogenerator has that the reliability is high, the leakproofness is good, corrosion resistance is strong, the wide and stable advantage of output signal of applied temperature range, can popularize to space flight, weapon, boats and ships and other equipment that have similar demand.
Description
Technical Field
The utility model belongs to the technical field of tachogenerator, a resistant environment tachogenerator for aeroengine is related to.
Background
The tachogenerator is a device for converting the rotating speed of a tested rotating part into an electric signal to be output, and the rotating speed of the tested part can be obtained by monitoring the electric signal. Be applied to the tachogenerator of monitoring aeroengine rotational speed, operational environment is extremely abominable, and prior art tachogenerator fails to accomplish in intensity, temperature resistant, corrosion-resistant and sealed aspect and compromises, to this problem, provides a tachogenerator that can stably monitor aeroengine rotational speed for a long time under harsh environment now.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a can be under harsh environment for a long time the tachogenerator of stable monitoring aeroengine rotational speed.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a tachogenerator for an environment-resistant aeroengine comprises a front shell, a rotor, a stator, a rear shell, a locking nut, a connecting nut, a ball, a sealing plug, a connector, a shaft end nut, a shaft end sleeve, a sealing assembly, a sealing gasket, a rear cover and a baffle cover;
the front shell and the rear shell are fixed by screws, and the stator is arranged in a cavity formed after the front shell and the rear shell are installed; the rotor is axially arranged in the stator and comprises a connecting shaft rod, a shaft, magnetic steel and a stop collar, the magnetic steel is die-cast on the shaft in a die-casting forming mode, the connecting shaft rod is axially arranged in the shaft, an annular groove is formed in the tail end of the connecting shaft rod, and the stop collar is arranged in the annular groove;
the front and back both ends of axle are supported by arranging first bearing and second bearing in procapsid and back casing bearing room respectively, the pot head is installed through the screw thread mode in the front end periphery of casing in the front, coupling nut is installed to the periphery of pot head, it has a plurality of balls to fill between coupling nut and pot head, the axle periphery cover at the first bearing front end is equipped with the fender lid, seal assembly is installed to the periphery that keeps off the lid, seal assembly passes through lock nut and fixes the front end at first bearing, keep off the epaxial fender lid and the locking of first bearing through the axle head nut of the front end of lid, thereby with axle axial fixity, sealed pad is pressed tightly on the casing of back by the back lid, the sealing plug interference is arranged in the cavity after casing and the connector installation.
Furthermore, a sealing ring is arranged on the butt joint surface of the front shell and the rear shell, and the front shell and the rear shell clamp and fix the sealing ring.
The sealing assembly comprises a sealing cover, a plurality of sealing pieces and a clamp spring, wherein the sealing pieces are fixedly pressed in the sealing cover through the clamp spring, and the sealing pieces are sleeved on the periphery of the blocking cover in parallel; the sealing piece is made of polytetrafluoroethylene materials.
Furthermore, the sealing gasket and the sealing plug are both made of temperature-resistant and oil-resistant rubber materials.
Furthermore, the sealing ring is made of a temperature-resistant and oil-resistant rubber material.
Furthermore, the connecting shaft rod comprises a small-diameter section cylinder and a large-diameter section cylinder, the step between the small-diameter section cylinder and the large-diameter section cylinder is a first smooth transition step, a connecting body used for being in butt joint with the rotating end of an engine is arranged at the front end of the small-diameter section cylinder, four rectangular tangent planes which are axially symmetrical are cut from the periphery of the large-diameter section cylinder to the front end along the tail end, the axial length of each rectangular tangent plane is smaller than that of the large-diameter section cylinder, and the annular groove is located at the tail end of the large-diameter section cylinder after the tangent planes are cut.
Further, the shaft comprises a first cylinder section, a second cylinder section, a third cylinder section and a fourth cylinder section which are axially connected in sequence and integrally formed, wherein the outer diameters of the first cylinder section, the second cylinder section and the third cylinder section are sequentially increased, the outer diameter of the fourth cylinder section is smaller than that of the third cylinder section, an inner square hole is formed in the fourth cylinder section, a cylindrical inner hole is formed in the shaft from the front end of the inner square hole to the front end face of the first cylinder section of the shaft, and a second smooth transition step is arranged between the tail end face of the cylindrical inner hole and the front end face of the inner square hole; the periphery of the second cylinder section is provided with 2 spherical bulges arranged at intervals, and each spherical bulge is symmetrically provided with 2 planes.
Furthermore, 4 grooves are uniformly distributed on the outer peripheral surface of the first cylinder section, and the boss end of the shaft end nut is pressed and falls into the 4 grooves for locking.
Furthermore, four chutes are axially arranged on the periphery of the magnetic steel, and four-stage saturation magnetizing is adopted for the magnetic steel.
Furthermore, the leading-out end of the stator leading-out wire penetrates through the sealing plug to be connected with the contact body of the connector, the leading-out wire is fixed at the protruding part of the rear shell through a wire pressing sheet, and the winding of the stator is made of a high-temperature special enameled wire.
Compared with the prior art, the utility model discloses following beneficial effect has: the utility model relates to a many places seal structure, sealed pad, sealing plug, sealing washer all select temperature resistant oil rubber material for use, can effectively play dustproof grease proofing effect. This tacho generator procapsid and back casing all adopt the machining mode, and the surface all sprays paint the processing, and it is high to handle so can guarantee two casing intensity, and corrosion resistance is strong and the outward appearance is pleasing to the eye. The rotor magnetic steel structure is integrally die-cast on the shaft, four chutes are axially arranged on the periphery of the magnetic steel, and the permanent magnet is magnetized by four-stage saturation. The stator winding selects a special high-temperature enameled wire which can bear the high temperature of 250 ℃ at most, and is provided with a wire pressing sheet for fixing the outgoing line, so that the outgoing line is not shaken in the tachogenerator. All threaded connections are subjected to glue coating treatment, so that the connection reliability of the tachogenerator during operation can be ensured.
The utility model discloses a tachogenerator has that the reliability is high, the leakproofness is good, corrosion resistance is strong, the wide and stable advantage of output signal of applied temperature range, can popularize to space flight, weapon, boats and ships and other equipment that have similar demand.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic structural view of the rotor of the present invention;
FIG. 3 is a schematic view of the connecting shaft of the rotor;
FIG. 4 is a schematic view of a shaft structure of the rotor;
fig. 5 is a schematic overall appearance of the rotor;
FIG. 6 is a schematic view of the connection of the connecting shaft rod and the shaft;
FIG. 7 is a schematic structural view of a seal assembly;
fig. 8 is a schematic view of the overall external structure of the present invention;
in the figure: 1-front housing; 2-a rotor; 2-1-connecting shaft rod; 2-1-1-small diameter section of cylinder; 2-1-2-large diameter section of cylinder; 2-1-2-1-rectangular section; 2-1-2-2-annular groove; 2-1-3-a first smooth transition step; 2-1-4-linker; 2-2-axis; 2-2-1-a first cylinder section; 2-2-2-second cylinder section; 2-2-3-third cylinder section; 2-2-4-a fourth cylinder section; 2-2-4-1-inner square hole; 2-2-5-spherical bulge; 2-2-5-1-plane; 2-2-6-cylindrical inner bore; 2-3-magnetic steel; 2-3-1-chute; 2-4-a stop collar; 3-a stator; 4-a rear housing; 5-locking the nut; 6-connecting a nut; 7-a ball bearing; 8-sealing plug; 9-a connector; 10-shaft end nut; 11-end sleeve; 12-a sealing assembly; 12-1-sealing cap; 12-2-seal piece; 12-3-clamp spring; 13-sealing ring; 14-a gasket; 15-rear cover; 16-a stop cover; 17-line pressing sheets; 18-a first bearing; 19-second bearing.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Examples
Referring to fig. 1 and 8, the tachogenerator for the environment-resistant aeroengine comprises a front shell 1, a rotor 2, a stator 3, a rear shell 4, a lock nut 5, a connecting nut 6, a ball 7, a sealing plug 8, a connector 9, a shaft end nut 10, an end sleeve 11, a sealing component 12, a sealing gasket 14, a rear cover 15 and a baffle cover 16;
the front shell 1 and the rear shell 4 are fixed by screws, and the stator 3 is arranged in a cavity formed after the front shell 1 and the rear shell 4 are installed; the rotor 2 is axially arranged in the stator 3, the rotor 2 comprises a connecting shaft rod 2-1, a shaft 2-2, magnetic steel 2-3 and a stop collar 2-4, the magnetic steel 2-3 is die-cast on the shaft 2-2 in a die-casting forming mode, the connecting shaft rod 2-1 is axially arranged in the shaft 2-2, an annular groove 2-1-2-2 is arranged at the tail end of the connecting shaft rod 2-1, and the stop collar 2-4 is arranged in the annular groove 2-1-2-2;
the front and rear ends of the shaft 2-2 are supported by first and second bearings 18 and 19 respectively disposed in bearing chambers of the front and rear cases 1 and 4, an end sleeve 11 is arranged on the periphery of the front end of the front shell 1 in a threaded mode, a connecting nut 6 is arranged on the periphery of the end sleeve 11, a plurality of balls 7 are filled between the connecting nut 6 and the end sleeve 11, a blocking cover 16 is sleeved on the periphery of the shaft 2-2 at the front end of the first bearing 18, a sealing component 12 is arranged on the periphery of the baffle cover 16, the sealing component 12 is fixed at the front end of the first bearing 18 through a locking nut 5, the baffle cover 16 and the first bearing 18 are locked on a shaft 2-2 at the front end of the baffle cover 16 through a shaft end nut 10, thereby axially fixing the shaft 2-2, the sealing gasket 14 is pressed on the rear housing 4 by the rear cover 15, and the sealing plug 8 is arranged in the cavity after the rear housing 4 and the connector 9 are installed in an interference manner.
A seal ring 13 is mounted on the abutting surface of the front case 1 and the rear case 4, and the front case 1 and the rear case 4 clamp and fix the seal ring 13.
Referring to fig. 7, the sealing assembly 12 includes a sealing cover 12-1, a plurality of sealing pieces 12-2, and a clamp spring 12-3, the plurality of sealing pieces 12-2 are fixedly pressed in the sealing cover 12-1 by the clamp spring 12-3, and the plurality of sealing pieces 12-2 are parallelly sleeved on the periphery of the blocking cover 16.
The sealing piece 12-2 is made of polytetrafluoroethylene materials.
The sealing gasket 14 and the sealing plug 8 are both made of temperature-resistant and oil-resistant rubber materials.
The sealing ring 13 is made of a temperature-resistant oil-resistant rubber material.
Referring to fig. 2-4, the connecting shaft rod 2-1 includes a small diameter section cylinder 2-1-1 and a large diameter section cylinder 2-1-2, a step between the small diameter section cylinder 2-1-1 and the large diameter section cylinder 2-1-2 is a first smooth transition step 2-1-3, a connector 2-1-4 for butt-joint with a rotating end of an engine is arranged at the front end of the small diameter section cylinder 2-1-1, four axially symmetrical rectangular sections 2-1-2-1 are cut from the periphery of the large diameter section cylinder 2-1-2 along the tail end to the front end, the axial length of the rectangular section 2-1-2-1 is smaller than that of the large diameter section cylinder 2-1-2, the annular groove 2-1-2-2 is positioned at the tail end of the large-diameter section cylinder 2-1-2 after the section is cut.
The shaft 2-2 comprises a first cylindrical section 2-2-1, a second cylindrical section 2-2-2, a third cylindrical section 2-2-3 and a fourth cylindrical section 2-2-4 which are axially connected in sequence and integrally formed, wherein the outer diameters of the first cylindrical section 2-2-1, the second cylindrical section 2-2-2 and the third cylindrical section 2-2-3 are sequentially increased, the third cylindrical section 2-2-3 is a shaft shoulder, the outer diameter of the fourth cylindrical section 2-2-4 is smaller than that of the third cylindrical section 2-2-3, an inner square hole 2-2-4-1 is formed in the fourth cylindrical section 2-2-4, and meanwhile, an inner square hole 2-2-4-1 is formed in the shaft from the front end face of the inner square hole 2-2-4-1 to the front end face of the first cylindrical section 2-2-1 of the shaft A cylindrical inner hole 2-2-6 is arranged, and a second smooth transition step 2-2-4-2 is arranged between the tail end face of the cylindrical inner hole 2-2-6 and the front end face of the inner square hole 2-2-4-1; the periphery of the second cylinder section 2-2-2 is provided with 2 spherical bulges 2-2-5 arranged at intervals, and each spherical bulge 2-2-5 is symmetrically provided with 2 planes 2-2-5-1. When the connecting shaft rod is arranged in the shaft, the large-diameter section cylinder 1-2 of the connecting shaft rod is arranged in the inner square hole 2-4-1 of the fourth cylinder section 2-4 of the shaft, the large-diameter section cylinder 1-2 with the rectangular section 1-5 is arranged in the inner square hole 2-4-1 of the shaft 2, the first smooth transition step 2-7 is attached to the step surface of the second smooth transition step 2-7, a gap is formed between the rectangular section 1-5 and the inner square hole 2-4-1, and the gap between each rectangular section 1-5 and the inner square hole 2-4-1 is 0.02mm-0.05 mm.
4 grooves 2-2-1-1 are uniformly distributed on the outer peripheral surface of the first cylindrical section 2-2-1, and the boss end of the shaft end nut 10 is pressed and falls into the 4 grooves 2-2-1-1 for locking.
The connecting shaft rod 2-1 is made of a high-hardness stainless steel material, has good wear resistance and can ensure long-term effective work under the condition of butt joint with an external rotating part.
Referring to fig. 5, four chutes 2-3-1 are axially arranged on the periphery of the magnetic steel 2-3, and four-stage saturation magnetizing is adopted for the magnetic steel 2-3.
The leading-out ends of the leading-out wires of the stator 3 penetrate through the sealing plug 8 to be connected with a contact body of the connector 9, and the leading-out wires are fixed at the bulge of the rear shell 4 through the wire pressing sheet 17.
The stator 3 comprises a stator core and a winding, and the winding enameled wire is a high-temperature special enameled wire.
The front shell body 1 and the rear shell body 4 are machined, and the outer surfaces of the front shell body and the rear shell body are painted.
And all threaded joints in the tachogenerator are coated with thread locking glue.
The utility model discloses a connecting body 2-1-4 of even axostylus axostyle 2-1 of tachogenerator rotor docks and drives rotor 2 rotation and produces the magnetic field with the engine rotation end, and stator 3 produces induced electromotive force through induced magnetic field, through connector 9 external output voltage and frequency signal, thereby monitors the rotational speed of surveying the engine to the voltage and the frequency signal of output.
The utility model discloses a tachogenerator is equipped with many seal structure, and sealed pad, sealing plug, sealing washer all select temperature resistant oil-proof rubber material for use, and the gasket adopts the polytetrafluoroethylene material to make, can effectively play dustproof grease proofing effect. This tacho generator procapsid and back casing all adopt the machining mode, and the surface all sprays paint the processing, and it is high to handle so can guarantee two casing intensity, and corrosion resistance is strong and the outward appearance is pleasing to the eye. The stator winding selects a special high-temperature enameled wire which can bear the high temperature of 250 ℃ at most, and is provided with a wire pressing sheet for fixing the outgoing line, so that the outgoing line is not shaken in the tachogenerator.
The utility model discloses a magnet steel is for passing through die-casting mode with permanent magnetic material and axle die-casting as an organic whole, and such structure has improved production efficiency, has reduced the consumption of material, and the magnet steel periphery is equipped with four chutes, adopts the level four saturation to magnetize the magnet steel, and this kind of structural reliability is high and can effectively reduce tooth's socket torque, makes tachogenerator output voltage and frequency signal stable. And two spherical bulges 2-5 with a plane structure are arranged on the shaft, and the magnetic steel is die-cast outside the positions of the two spherical bulges 2-5, so that the structure can effectively prevent the problem of circumferential and axial movement of the magnetic steel under severe vibration conditions.
In addition, the connecting shaft lever 1 is designed to be of a slender rod structure, the design toughness is good, the connecting shaft lever is connected with the shaft 2 in a small gap mode, and referring to fig. 6, (the gap between each rectangular section 1-5 and the inner square hole 2-4-1 is 0.02mm-0.05mm, the gap value can be adjusted between 0.02mm-0.05mm according to the range of circumferential movement desired by the end portion of the connecting shaft lever actually). The stop collar 4 is a circular ring formed by bending a stainless steel wire, is clamped in the annular groove 1-6, is arranged in the inner square hole 2-4-1 of the shaft 2 together with the large-diameter section cylinder 1-2 with the rectangular section 1-5, and has a step structure that the step surfaces of the first smooth transition step 2-7 and the second smooth transition step 2-7 are jointed together to play an axial limiting role for the connecting shaft lever 1.
The utility model discloses a tachogenerator has that the reliability is high, the leakproofness is good, corrosion resistance is strong, the wide and stable advantage of output signal of applied temperature range, can popularize to space flight, weapon, boats and ships and other equipment that have similar demand.
The principle and the implementation of the present invention are explained herein by using specific examples, and the above description of the embodiments is only used to help understand the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.
Claims (10)
1. A tachogenerator for an environment-resistant aeroengine is characterized by comprising a front shell, a rotor, a stator, a rear shell, a locking nut, a connecting nut, a ball, a sealing plug, a connector, a shaft end nut, an end sleeve, a sealing assembly, a sealing gasket, a rear cover and a baffle cover;
the front shell and the rear shell are fixed by screws, and the stator is arranged in a cavity formed after the front shell and the rear shell are installed; the rotor is axially arranged in the stator and comprises a connecting shaft rod, a shaft, magnetic steel and a stop collar, the magnetic steel is die-cast on the shaft in a die-casting forming mode, the connecting shaft rod is axially arranged in the shaft, an annular groove is formed in the tail end of the connecting shaft rod, and the stop collar is arranged in the annular groove;
the front and back both ends of axle are supported by arranging first bearing and second bearing in procapsid and back casing bearing room respectively, the pot head is installed through the screw thread mode in the front end periphery of casing in the front, coupling nut is installed to the periphery of pot head, it has a plurality of balls to fill between coupling nut and pot head, the axle periphery cover at the first bearing front end is equipped with the fender lid, seal assembly is installed to the periphery that keeps off the lid, seal assembly passes through lock nut and fixes the front end at first bearing, keep off the epaxial fender lid and the locking of first bearing through the axle head nut of the front end of lid, thereby with axle axial fixity, sealed pad is pressed tightly on the casing of back by the back lid, the sealing plug interference is arranged in the cavity after casing and the connector installation.
2. A tachogenerator for an environmentally resistant aircraft engine as claimed in claim 1 wherein a seal is mounted on the interface between the front and rear housings, the seal being clamped between the front and rear housings.
3. A tachogenerator for an environmentally resistant aeroengine according to claim 1, wherein the seal assembly comprises a seal cover, a plurality of sealing pieces and a snap spring, the sealing pieces are fixedly compressed in the seal cover by the snap spring, and the sealing pieces are sleeved in parallel on the periphery of the shield cover; the sealing piece is made of polytetrafluoroethylene materials.
4. A tachogenerator for an environmentally resistant aeroengine as claimed in claim 1, wherein the sealing gasket and sealing plug are made of temperature and oil resistant rubber material.
5. A tachogenerator for an environmentally resistant aircraft engine as claimed in claim 2, wherein the sealing ring is made of a temperature and oil resistant rubber material.
6. A tachogenerator for an environmentally sound aircraft engine as claimed in claim 1, wherein the connecting rod comprises a small diameter section of cylinder and a large diameter section of cylinder, the step between the small diameter section of cylinder and the large diameter section of cylinder is a first smooth transition step, a connector is provided at the front end of the small diameter section of cylinder for docking with the rotating end of the engine, four axially symmetric rectangular sections are cut from the periphery of the large diameter section of cylinder along the tail end to the front end, the axial length of the rectangular section is smaller than that of the large diameter section of cylinder, and the annular groove is provided at the tail end of the large diameter section of cylinder after the section is cut.
7. A tachogenerator for an environmentally resistant aeroengine according to claim 1 wherein the shaft comprises first, second, third and fourth cylindrical sections axially connected in series and formed integrally, wherein the first, second and third cylindrical sections have successively larger outer diameters, the fourth cylindrical section has a smaller outer diameter than the third cylindrical section, and an inner square hole is provided in the fourth cylindrical section, and a cylindrical bore is provided in the shaft from the front end of the inner square hole to the front end face of the first cylindrical section of the shaft, and a second smooth transition step is provided between the end face of the cylindrical bore and the front end face of the inner square hole; the periphery of the second cylinder section is provided with 2 spherical bulges arranged at intervals, and each spherical bulge is symmetrically provided with 2 planes.
8. A tachogenerator for an environmentally resistant aeroengine as claimed in claim 7, wherein there are 4 grooves evenly distributed on the outer circumferential surface of the first cylindrical section.
9. A tachogenerator for an environmentally resistant aeroengine as claimed in claim 1, wherein four chutes are axially provided around the periphery of said magnet steel and four stages of saturation magnetization are applied to the magnet steel.
10. A tachogenerator for an environmentally resistant aeroengine according to claim 1, wherein the outlet of the stator lead wire passes through the sealing plug and is connected to the contact of the connector, and the lead wire is fixed to the rear housing projection by a wire clip, and the stator winding is made of high temperature special enameled wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922058299.7U CN210867361U (en) | 2019-11-26 | 2019-11-26 | Environment-resistant speed measurement generator for aeroengine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922058299.7U CN210867361U (en) | 2019-11-26 | 2019-11-26 | Environment-resistant speed measurement generator for aeroengine |
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| Publication Number | Publication Date |
|---|---|
| CN210867361U true CN210867361U (en) | 2020-06-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922058299.7U Active CN210867361U (en) | 2019-11-26 | 2019-11-26 | Environment-resistant speed measurement generator for aeroengine |
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| CN (1) | CN210867361U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110932451A (en) * | 2019-11-26 | 2020-03-27 | 沈阳兴华航空电器有限责任公司 | Environment-resistant speed measurement generator for aeroengine |
-
2019
- 2019-11-26 CN CN201922058299.7U patent/CN210867361U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110932451A (en) * | 2019-11-26 | 2020-03-27 | 沈阳兴华航空电器有限责任公司 | Environment-resistant speed measurement generator for aeroengine |
| CN110932451B (en) * | 2019-11-26 | 2025-04-04 | 沈阳兴华航空电器有限责任公司 | A speed measuring generator for environment-resistant aircraft engines |
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