CN214397265U - Single rotor plant protection unmanned aerial vehicle gearbox drive mechanism - Google Patents
Single rotor plant protection unmanned aerial vehicle gearbox drive mechanism Download PDFInfo
- Publication number
- CN214397265U CN214397265U CN202023175006.2U CN202023175006U CN214397265U CN 214397265 U CN214397265 U CN 214397265U CN 202023175006 U CN202023175006 U CN 202023175006U CN 214397265 U CN214397265 U CN 214397265U
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- gearbox
- subassembly
- aerial vehicle
- unmanned aerial
- plant protection
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- 230000007246 mechanism Effects 0.000 title claims abstract description 38
- 230000005540 biological transmission Effects 0.000 claims abstract description 42
- 239000010687 lubricating oil Substances 0.000 claims abstract description 17
- 239000000428 dust Substances 0.000 claims description 8
- 239000003921 oil Substances 0.000 claims description 8
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 230000008901 benefit Effects 0.000 abstract description 4
- 239000012141 concentrate Substances 0.000 abstract description 3
- 238000012938 design process Methods 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 229910001008 7075 aluminium alloy Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005255 carburizing Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000009331 sowing Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a single rotor plant protection unmanned aerial vehicle gearbox drive mechanism installs the main shaft on this drive mechanism, the lubricating oil input port has been seted up to the left side upper end of main shaft, and the lubricating oil delivery outlet has been seted up to the right side lower extreme of this main shaft. This single rotor plant protection unmanned aerial vehicle gearbox drive mechanism, this mechanism have stronger stability, high transmission efficiency, structural functionality advantage such as diversified, this gearbox front end can be transformed the high rotational speed and the direction of rotation of engine through spiral bevel gear in aircraft design process, also can transmit some power for the tail-rotor through spiral bevel gear mechanism at the back simultaneously, make the abundant aircraft design and the operation requirement that reaches of transmission efficiency of engine. Meanwhile, the mechanism concentrates the main transmission system of the airplane in the gearbox, so that the resonance probability of the airplane is reduced, and the airplane is more stable.
Description
Technical Field
The utility model relates to an unmanned air vehicle technique field specifically is a single rotor plant protection unmanned aerial vehicle gearbox drive mechanism.
Background
The value-guaranteed unmanned aerial vehicle has the advantages of unique low cost, low loss, no pollution, reusability, high maneuverability and the like, and plays a great role in agriculture, such as: sowing, spraying, insect-proofing, etc
Value is protected unmanned aerial vehicle's drive mechanism is unmanned helicopter's important component, and unmanned aerial vehicle is protected to current value, and the weight of taking off adopts the gearbox to change the rotational speed of engine output at most above the 150 kg grades, and the design of the box of gearbox is divided into upper cover and lower cover two parts simultaneously, and there is following defect in this kind of traditional design:
1) the cantilever belt pulley mechanism additionally arranged on the gearbox can cause serious abrasion of the installation position of the cantilever bearing, and the gearbox can be abraded after long-time operation, so that the transmission clearance is increased, and the efficiency is reduced.
2) Meanwhile, the gearbox is mostly an integrated upper cover, the processing difficulty is high, and the economical efficiency is poor.
3) The gearbox upper cover is connected fixedly with the frame with the screw after combining with the lower cover, and along with time change, the frame takes place deformation and directly leads to gearbox upper cover and lower cover joint department to take place deformation displacement and lead to the interior lubricating oil seepage of gearbox, and structural stability is not good.
Therefore, a gearbox transmission mechanism of the single-rotor-wing plant protection unmanned aerial vehicle is provided.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the prior art, the utility model provides a gearbox transmission mechanism of a single-rotor plant protection unmanned aerial vehicle, which solves the problems that the installation position of a cantilever bearing is seriously abraded due to the additional cantilever belt pulley mechanism of the gearbox in the prior art, and the gearbox is abraded due to long-time operation, so that the transmission clearance is increased, and the efficiency is reduced; meanwhile, the gearbox is mostly provided with an integrated upper cover, so that the processing difficulty is high, and the economical efficiency is poor; the gearbox upper cover is connected fixedly with the frame with the screw after combining with the lower cover, and along with time variation, the frame takes place deformation and directly leads to gearbox upper cover and lower cover combination department to take place deformation displacement and lead to the interior lubricating oil seepage of gearbox, the not good problem of structural stability.
The utility model provides a single rotor plant protection unmanned aerial vehicle gearbox drive mechanism, installs the main shaft on this drive mechanism, the lubricating oil input port has been seted up to the left side upper end of main shaft, and the lubricating oil delivery outlet has been seted up to the right side lower extreme of this main shaft, and top one side of this lubricating oil delivery outlet has bevel gear meshing department, and this drive mechanism comprises big spiral bevel gear subassembly, gearbox support seat subassembly, gearbox upper cover subassembly, gearbox lower cover subassembly, input front axle subassembly and output back tooth axle subassembly.
Preferably, the main shaft is installed at the middle position of the large spiral bevel gear assembly, and the right side of the large spiral bevel gear assembly is provided with the large spiral bevel gear.
Preferably, expiration bolt is installed to the left side intermediate position of gearbox supporting seat subassembly, and the upper end right side of gearbox supporting seat subassembly is provided with the dust ring, should deep groove ball bearing is installed to the lower extreme of dust ring, and the periphery of this gearbox supporting seat subassembly has the supporting seat, and the lower extreme both sides of gearbox supporting seat subassembly all are provided with spacing step.
Preferably, the top end of the gearbox upper cover component is provided with a limiting groove, an angular contact bearing is arranged in the limiting groove, an upper cover is arranged on the right side of the angular contact bearing, and the periphery of the gearbox upper cover component is uniformly provided with stainless steel sleeves.
Preferably, a gearbox lower cover is installed on the gearbox lower cover component, and a first bearing and an oil drain screw are installed on one side of the gearbox lower cover respectively.
Preferably, first fixed thread ring is installed to the middle part both sides of the input front gear axle subassembly, and installs the front gear axle before the input on the gear axle subassembly, and this front gear axle one side cover is equipped with the second bearing.
Preferably, the second fixed threaded ring is installed on the two sides of the middle of the output end rear gear shaft assembly, the rear gear shaft is installed on the input end front gear shaft assembly, and a third bearing is sleeved on one side of the rear gear shaft.
Compared with the prior art, the utility model discloses possess following beneficial effect: this single rotor plant protection unmanned aerial vehicle gearbox drive mechanism, this mechanism have stronger stability, high transmission efficiency, structural functionality advantage such as diversified, this gearbox front end can be transformed the high rotational speed and the direction of rotation of engine through spiral bevel gear in aircraft design process, also can transmit some power for the tail-rotor through spiral bevel gear mechanism at the back simultaneously, make the abundant aircraft design and the operation requirement that reaches of transmission efficiency of engine. Meanwhile, the mechanism concentrates the main transmission system of the airplane in the gearbox, so that the resonance probability of the airplane is reduced, the airplane is more stable, and meanwhile, the upper cover of the traditional gearbox is divided, so that the processing difficulty is reduced; the single-row angular contact bearing is adopted, the traditional deep groove ball bearing is omitted, the reasonably selected bearing is more suitable for the stress mode of the box body, meanwhile, the height is reduced after the box body is distributed, and the lubricating oil in the transmission box can be driven to lubricate the single-row angular contact bearing when the transmission box runs, so that the service life of the bearing is prolonged; the lower cover of the gearbox is independently connected with the gearbox and does not participate in the fixation of the gearbox, so that the problem of oil leakage of the gearbox is fundamentally solved.
Drawings
Fig. 1 is an overall structural view of the transmission mechanism of the single-rotor plant protection unmanned aerial vehicle gearbox of the utility model;
FIG. 2 is a schematic view of the structure of the present invention at A-A in FIG. 1;
FIG. 3 is a schematic view of the large spiral bevel gear assembly of the present invention;
FIG. 4 is a schematic structural view of a gearbox support base assembly according to the present invention;
FIG. 5 is a schematic structural view of an upper cover assembly of the transmission according to the present invention;
FIG. 6 is a schematic structural view of a lower cover assembly of the transmission according to the present invention;
fig. 7 is a schematic structural view of the input end front gear assembly of the present invention;
fig. 8 is a schematic structural view of the output end rear gear shaft assembly of the present invention;
in the figure: 1. a main shaft; 2. a lubricating oil inlet; 3. a lubricating oil outlet; 4. the meshing part of the bevel gear; 5. a large spiral bevel gear assembly; 6. a large spiral bevel gear; 7. a gearbox support pedestal assembly; 8. an exhalation bolt; 9. a dust ring; 10. a deep groove ball bearing; 11. a supporting seat; 12. a limiting step; 13. a gearbox upper cover assembly; 14. a limiting groove; 15. an angular contact bearing; 16. an upper cover; 17. a stainless steel sleeve; 18. a gearbox lower cover assembly; 19. a lower cover of the gearbox; 20. a first bearing; 21. oil drain screws; 22. an input end front gear shaft assembly; 23. a first fixed threaded ring; 24. a second bearing; 25. a front pinion shaft; 26. the output end is provided with a rear gear shaft component; 27. a second fixed threaded ring; 28. a rear pinion shaft; 29. and a third 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.
Referring to fig. 1-8, a transmission mechanism of a single-rotor unmanned aerial vehicle for plant protection is provided with a main shaft 1, a lubricating oil inlet 2 is provided at the upper end of the left side of the main shaft 1, a lubricating oil outlet 3 is provided at the lower end of the right side of the main shaft 1, a bevel gear meshing part 4 is provided at one side above the lubricating oil outlet 3, and the transmission mechanism is composed of a large spiral bevel gear assembly 5, a transmission support assembly 7, a transmission upper cover assembly 13, a transmission lower cover assembly 18, an input end front gear shaft assembly 22 and an output end rear gear shaft assembly 26.
The main shaft 1 is installed in the middle of the large spiral bevel gear assembly 5, and the right side of the large spiral bevel gear assembly 5 is provided with a large spiral bevel gear 6.
The top end of the gearbox upper cover component 13 is provided with a limiting groove 14, an angular contact bearing 15 is arranged inside the limiting groove 14, an upper cover 16 is arranged on the right side of the angular contact bearing 15, and stainless steel sleeves 17 are uniformly arranged on the periphery of the gearbox upper cover component 13.
The lower cover assembly 18 of the gearbox is provided with a lower cover 19 of the gearbox, and one side of the lower cover 19 of the gearbox is respectively provided with a first bearing 20 and an oil drain screw 21.
First fixed threaded rings 23 are installed on two sides of the middle of the input end front gear shaft assembly 22, a front gear shaft 25 is installed on the input end front gear shaft assembly 22, and a second bearing 24 is sleeved on one side of the front gear shaft 25.
Second fixed threaded rings 27 are mounted on two sides of the middle of the output end rear gear shaft assembly 26, a rear gear shaft 28 is mounted on the input end front gear shaft assembly 22, and a third bearing 29 is sleeved on one side of the rear gear shaft 28.
It should be noted that the transmission structure inside the transmission case of the unmanned aerial vehicle for this value assurance consists of a transmission case support seat, a transmission case upper cover, a transmission case lower cover, a single-row angular contact bearing, a deep groove ball bearing, a transmission case main shaft, a main spiral bevel gear, a front gear shaft, a rear gear shaft, a sealing gasket and the like, wherein a deep groove ball bearing matched dust ring is assembled at a corresponding position in the transmission case support seat, the single-row angular contact bearing is reasonably assembled in the transmission case upper cover according to the stress direction, meanwhile, the outer end of the shell is provided with 4 mounting holes which are fixedly connected with the machine body, stainless steel sleeves are embedded in the holes, deep groove ball bearings are assembled in the lower cover of the gearbox, the three components are assembled on a main shaft of a gearbox provided with large spiral bevel gears in sequence according to requirements, a gear shaft component comprises a gear shaft, a deep groove ball bearing and a sealing ring, the gear shaft component and the deep groove ball bearing are assembled on an upper cover of the gearbox respectively after combination, the gear shaft component at the front end is an engine input end, and the gear shaft component at the rear end is a tail shaft output end. The transmission supporting seat is provided with an expiration bolt, the upper cover is provided with an oil filling port, and the lower cover is provided with an oil drain hole which is fixed by a sealing screw. Big spiral bevel gear constitutes the one-level speed reduction with the combination of front and back tooth axle, the rotational speed of passing through the combination of front tooth axle with the engine output converts the aircraft owner rotor needs's rotational speed, changed tail transmission rotational speed through back tooth axle subassembly simultaneously, the gearbox box is processed by 7075 aluminum product, both guaranteed intensity and alleviateed whole weight, the main shaft is made by aviation superior material 30CrMnSiA, the inside gear of this mechanism and tooth axle all are by the whole carburizing and quenching processing preparation of 20CrMnTi, guarantee wear-resisting and the transmission precision of gear. The designed rotating speed of the main rotor of the airplane can be adjusted according to the rotating speed of the engine and the tooth ratio of the big gear and the gear shaft. The rotation speed of the tail rotor is also determined by adjusting the tooth ratio of the bevel gears.
This single rotor plant protection unmanned aerial vehicle gearbox drive mechanism, this mechanism have stronger stability, high transmission efficiency, structural functionality advantage such as diversified, this gearbox front end can be transformed the high rotational speed and the direction of rotation of engine through spiral bevel gear in aircraft design process, also can transmit some power for the tail-rotor through spiral bevel gear mechanism at the back simultaneously, make abundant aircraft design and the operation requirement that reaches of transmission efficiency of engine. Meanwhile, the mechanism concentrates the main transmission system of the airplane in the gearbox, so that the resonance probability of the airplane is reduced, the airplane is more stable, and meanwhile, the upper cover of the traditional gearbox is divided, so that the processing difficulty is reduced; the single-row angular contact bearing is adopted, the traditional deep groove ball bearing is omitted, the reasonably selected bearing is more suitable for the stress mode of the box body, meanwhile, the height is reduced after the box body is distributed, and the lubricating oil in the transmission box can be driven to lubricate the single-row angular contact bearing when the transmission box runs, so that the service life of the bearing is prolonged; the lower cover of the gearbox is independently connected with the gearbox and does not participate in the fixation of the gearbox, so that the problem of oil leakage of the gearbox is fundamentally solved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a single rotor plant protection unmanned aerial vehicle gearbox drive mechanism, installs main shaft (1) on this drive mechanism, its characterized in that: lubricating oil input port (2) have been seted up to the left side upper end of main shaft (1), and lubricating oil delivery outlet (3) have been seted up to the right side lower extreme of this main shaft (1), and top one side of this lubricating oil delivery outlet (3) has bevel gear meshing department (4), and this drive mechanism comprises big spiral bevel gear subassembly (5), gearbox supporting seat subassembly (7), gearbox upper cover subassembly (13), gearbox lower cover subassembly (18), input front tooth axle subassembly (22) and output rear tooth axle subassembly (26).
2. The gearbox transmission mechanism of single-rotor plant protection unmanned aerial vehicle of claim 1, characterized in that: the main shaft (1) is arranged in the middle of the large spiral bevel gear assembly (5), and the right side of the large spiral bevel gear assembly (5) is provided with large spiral bevel teeth (6).
3. The gearbox transmission mechanism of single-rotor plant protection unmanned aerial vehicle of claim 1, characterized in that: expiration bolt (8) are installed to the left side intermediate position of gearbox supporting seat subassembly (7), and the upper end right side of gearbox supporting seat subassembly (7) is provided with dust ring (9), should deep groove ball bearing (10) are installed to the lower extreme of dust ring (9), and the periphery of this gearbox supporting seat subassembly (7) has supporting seat (11), and the lower extreme both sides of gearbox supporting seat subassembly (7) all are provided with spacing step (12).
4. The gearbox transmission mechanism of single-rotor plant protection unmanned aerial vehicle of claim 1, characterized in that: the top of gearbox upper cover subassembly (13) is provided with spacing recess (14), and the inside of spacing recess (14) has angular contact bearing (15), the right side of angular contact bearing (15) is provided with upper cover (16), and evenly installs stainless steel cover (17) around gearbox upper cover subassembly (13).
5. The gearbox transmission mechanism of single-rotor plant protection unmanned aerial vehicle of claim 1, characterized in that: a gearbox lower cover (19) is installed on the gearbox lower cover component (18), and a first bearing (20) and an oil drain screw (21) are installed on one side of the gearbox lower cover (19) respectively.
6. The gearbox transmission mechanism of single-rotor plant protection unmanned aerial vehicle of claim 1, characterized in that: first fixed thread ring (23) are installed to the middle part both sides of input front tooth axle subassembly (22), and install front tooth axle (25) on input front tooth axle subassembly (22), and this front tooth axle (25) one side cover is equipped with second bearing (24).
7. The gearbox transmission mechanism of single-rotor plant protection unmanned aerial vehicle of claim 1, characterized in that: second fixed thread ring (27) are installed to the middle part both sides of output back pinion subassembly (26), and install back pinion (28) on input front axle subassembly (22), and this back pinion (28) one side cover is equipped with third bearing (29).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023175006.2U CN214397265U (en) | 2020-12-25 | 2020-12-25 | Single rotor plant protection unmanned aerial vehicle gearbox drive mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023175006.2U CN214397265U (en) | 2020-12-25 | 2020-12-25 | Single rotor plant protection unmanned aerial vehicle gearbox drive mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214397265U true CN214397265U (en) | 2021-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023175006.2U Expired - Fee Related CN214397265U (en) | 2020-12-25 | 2020-12-25 | Single rotor plant protection unmanned aerial vehicle gearbox drive mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214397265U (en) |
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2020
- 2020-12-25 CN CN202023175006.2U patent/CN214397265U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211015 |