CN215043674U - Main rotor locking device of rotorcraft - Google Patents
Main rotor locking device of rotorcraft Download PDFInfo
- Publication number
- CN215043674U CN215043674U CN202121067343.1U CN202121067343U CN215043674U CN 215043674 U CN215043674 U CN 215043674U CN 202121067343 U CN202121067343 U CN 202121067343U CN 215043674 U CN215043674 U CN 215043674U
- Authority
- CN
- China
- Prior art keywords
- sleeve
- locking
- main rotor
- axle sleeve
- hole
- 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.)
- Active
Links
Images
Landscapes
- Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
Abstract
The utility model discloses a main rotor locking device of gyroplane, including main rotor pivot, flange and the axle sleeve of connection in flange one end, the middle part of axle sleeve has the mounting hole, the axle sleeve has the taper hole that the outside opening is big, the inboard opening is little, be provided with the outer taper sleeve of installing with the axle sleeve cooperation on the axle sleeve, the medial extremity of axle sleeve all is provided with the annular that the cross-sectional shape is the U-shaped, and the medial extremity of axle sleeve still is provided with from the annular constant head tank that the medial extremity of U-shaped annular groove caves in, main rotor pivot is overlapped and is provided with the locking cover, has seted up two shrinkage pools on the locking cover, is provided with locking device in the shrinkage pool; the utility model discloses guaranteed the reliability of connecting, reduced the installation degree of difficulty, can make the position sleeve reliably fix a position through annular positioning groove moreover, improved positioning accuracy, guaranteed the reliability of using.
Description
Technical Field
The utility model relates to a gyroplane technical field, concretely relates to main rotor locking device of gyroplane.
Background
The rotary wing aircraft is a novel unmanned aircraft with the vertical take-off and landing performance of a helicopter and the high-speed cruising performance of a fixed wing aircraft. The locking device adopted by the existing rotary wing in the process of switching flight is difficult to position accurately in the installation process, so that the installation difficulty is high, on the other hand, the positioning precision is still low only by the positioning of the connecting shaft, and a long fastener is required to be adopted, so that the fastener is easy to deform or break after long-time use. In view of the above drawbacks, it is desirable to design a main rotor locking device for a rotorcraft.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a main rotor locking device of gyroplane to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a main rotor locking device of gyroplane, includes main rotor pivot, flange and connects the axle sleeve in flange one end, the middle part of axle sleeve has the mounting hole, the axle sleeve has that the outside opening is big, the little taper hole of inboard opening, be provided with the outer taper sleeve of installing with the axle sleeve cooperation on the axle sleeve, the medial extremity of axle sleeve all is provided with the annular that cross-sectional shape is the U-shaped, and the medial extremity of axle sleeve still is provided with from the sunken annular positioning groove of the medial surface in U-shaped annular groove, the cover is provided with the locking cover in the main rotor pivot, and two shrinkage pools have been seted up on the locking cover, are provided with locking device in the shrinkage pool.
Preferably, the U-shaped annular groove of the shaft sleeve is provided with a positioning sleeve which is matched with the shaft sleeve and provided with an inner annular bulge, the inner annular bulge of the positioning sleeve is positioned and installed in the positioning groove of the shaft sleeve, the positioning sleeve is arranged in the shaft sleeve and penetrates through the inner annular bulge of the positioning sleeve and the annular positioning groove of the shaft sleeve through a fastener and then is fixedly connected with the outer taper sleeve, and the positioning disc for positioning the positioning sleeve is fixedly installed at the inner side end of the positioning sleeve.
Preferably, the through-hole of having arranged in the annular constant head tank of axle sleeve, the interior annular of position sleeve is provided with the counter bore in protruding, still has arranged on the positioning disk and passes through the hole with the counter bore is corresponding, the fastener can through pass through in the hole enters into the counter bore of position sleeve and through-hole and outer taper sleeve fixed mounting, the middle part of position sleeve is provided with the mounting hole that can make main rotor pivot pass, and the counter bore of position sleeve is arranged at mounting hole edge all around, is provided with the screw thread that corresponds with the through-hole on the medial surface of outer taper sleeve.
Preferably, the shrinkage pool middle part is provided with the baffle, the through-hole has been seted up at the baffle middle part, locking device includes hasp, spring and round pin post, and the spring housing is established on the hasp, and the hasp includes hasp head and hasp post, and the one end of spring supports the hasp head, and the other end of spring supports the baffle.
Preferably, the main rotor shaft is sleeved with an oil seal, a boss is arranged between the oil seal and the locking sleeve, and the main rotor shaft is provided with two locking grooves.
Preferably, the locking columns comprise a first locking column, a second locking column and a third locking column, the third locking column is connected with the locking head, and the diameter of the second locking column is smaller than that of the first locking column and that of the third locking column.
Preferably, the spring is sleeved on the second locking column and the third locking column, the pin column is perpendicular to the second locking column and fixed on the second locking column, a pin hole is formed in the pin column, and a bolt is inserted into the pin hole.
Preferably, the locking sleeve is provided with a bolt hole, the bolt hole is communicated with the concave hole, and a bolt is movably arranged in the bolt hole.
Compared with the prior art, the utility model discloses a main rotor locking device of gyroplane, during the use, press the locking head and go into the hasp inslot of main rotor pivot with first hasp post card, lock main rotor pivot position, and insert the bolt inside the pinhole of round pin post, fix round pin post and second hasp post inside the locking cover, thereby make through having two shrinkage pools on the locking cover, be provided with locking device in the shrinkage pool, can fix and lock main rotor pivot, convenient and fast, simple installation; the utility model discloses because the medial extremity of axle sleeve is provided with the annular positioning groove who caves in from the medial surface of the annular groove of U shape, the annular groove of U shape of axle sleeve is settled have interior annular bellied position sleeve with axle sleeve matched with and settle the interior annular arch that passes the position sleeve through the fastener in the axle sleeve from this position sleeve, behind the constant head tank of axle sleeve and outer taper sleeve fixed connection, the protruding location of interior annular of its position sleeve has not only shortened the length of fastener in the position sleeve groove, the reliability of connection has been guaranteed, the installation degree of difficulty has been reduced, and can make the position sleeve can pass through the reliable location of annular positioning groove, positioning accuracy has been improved, the reliability of using has been guaranteed.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description, do not constitute a limitation of the invention, in which:
fig. 1 is a schematic structural view of a main rotor locking device of a rotorcraft according to the present invention;
fig. 2 is a schematic structural diagram of a point a in fig. 1.
In the drawings:
1. a main rotor shaft; 2. a connecting flange; 3. a shaft sleeve; 4. an outer taper sleeve; 5. a positioning sleeve; 6. positioning a plate; 7. a locking sleeve; 8. concave holes; 9. locking; 10. a spring; 11. a pin; 12. a locking head; 13. a locking post; 14. oil sealing; 15. a boss; 16. a baffle plate; 17. a through hole; 18. a first locking post; 19. a second locking post; 20. a third locking post; 21. a pin hole; 22. a bolt; 23. a pin hole; 24. a lock catch groove.
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 and 2, the present invention provides a technical solution: a main rotor locking device of a rotorcraft comprises a main rotor rotating shaft 1, a connecting flange 2 and a shaft sleeve 3 connected to one end of the connecting flange 2, wherein the connecting flange 2 is installed on the rotorcraft, a mounting hole is formed in the middle of the shaft sleeve 3, the main rotor rotating shaft 1 can be installed through the mounting hole of the shaft sleeve 3, the shaft sleeve 3 is provided with a taper hole with a large outer opening and a small inner opening, an outer taper sleeve 4 installed in a matched mode with the shaft sleeve 3 is arranged on the shaft sleeve 3, the shaft sleeve 3 and the outer taper sleeve 4 are installed in a positioned mode through mutually matched taper surfaces, annular grooves with U-shaped cross sections are arranged at the inner side end of the shaft sleeve 3, annular positioning grooves sunken from the inner side end faces of the U-shaped annular grooves are further arranged at the inner side end faces of the shaft sleeve 3, positioning sleeves 5 matched with the shaft sleeve 3 and provided with inner annular protrusions, and positioned in the positioning grooves of the shaft sleeve 3, the positioning sleeve 5 is arranged in the shaft sleeve 3 and penetrates through the inner annular bulge of the positioning sleeve 5 and the annular positioning groove of the shaft sleeve 3 through a fastener to be fixedly connected with the outer taper sleeve 4, and the positioning disk 6 used for positioning the positioning sleeve 5 is fixedly arranged at the inner side end of the positioning sleeve 5.
In this embodiment the through-hole of having arranged in the annular constant head tank of axle sleeve 3 is provided with the counter bore in the interior annular arch of position sleeve 5, still has arranged on the positioning disk 6 and passes through the hole with the counter bore is corresponding, the fastener can pass through the hole and enter into the counter bore of position sleeve 5 and through-hole and outer taper sleeve 4 fixed mounting, and the middle part of position sleeve 5 is provided with the mounting hole that can make main rotor pivot 1 pass, and the counter bore of position sleeve 5 is arranged at mounting hole edge all around, is provided with the screw hole that corresponds with the through-hole on the medial surface of outer taper sleeve 4.
In this embodiment main rotor pivot 1 is gone up the cover and is provided with locking cover 7, has seted up two shrinkage pools 8 on the locking cover 7, is provided with locking device in the shrinkage pool 8, shrinkage pool 8 middle part is provided with baffle 16, the through-hole 17 has been seted up at baffle 16 middle part, locking device includes hasp 9, spring 10 and round pin post 11, and spring 10 cover is established on hasp 9, and hasp 9 includes hasp head 12 and hasp post 13, and hasp head 12 is supported to the one end of spring 10, and baffle 16 is supported to the other end of spring 10.
In this embodiment, the main rotor shaft 1 is sleeved with an oil seal 14, a boss 15 is arranged between the oil seal 14 and the locking sleeve 7, and the main rotor shaft 1 is provided with two locking grooves 24.
In this embodiment, the locking column 13 includes a first locking column 18, a second locking column 19 and a third locking column 20, the third locking column 20 is connected to the locking head 12, the diameter of the second locking column 19 is smaller than the diameters of the first locking column 18 and the third locking column 20, the spring 10 is sleeved on the second locking column 19 and the third locking column 20, the pin 11 is perpendicular to the second locking column 19 and is fixed on the second locking column 19, the pin 11 is provided with a pin hole 21, and a pin 22 is inserted into the pin hole 21.
In this embodiment, the locking sleeve 7 is provided with a bolt hole 23, the bolt hole 23 is communicated with the concave hole 8, and a bolt 22 is movably arranged in the bolt hole 23.
The utility model discloses during the use, press hasp head 12 and go into first hasp post 18 card in the hasp groove 24 of main rotor pivot 1, lock main rotor pivot 1 position to inside inserting pinhole 21 of round pin post 11 with bolt 22, fix round pin post 11 and second hasp post 19 inside locking cover 7, thereby make through having seted up two shrinkage pools 8 on locking cover 7, be provided with locking device in the shrinkage pool 8, can fix and lock main rotor pivot, convenient and fast, simple installation; the utility model discloses because the medial extremity of axle sleeve 3 is provided with the annular positioning groove who caves in from the medial surface of the annular groove of U shape, the annular groove of U shape of axle sleeve 3 settles have with axle sleeve 3 matched with have interior annular bellied position sleeve 5 and settle the interior annular arch that passes position sleeve 5 through the fastener in the axle sleeve 3 from this position sleeve 5, behind the constant head tank of axle sleeve 3 with 4 fixed connection of outer taper sleeve, the protruding location of interior annular of its position sleeve 5 has not only shortened the length of fastener in the position ring groove, the reliability of connection has been guaranteed, the installation degree of difficulty has been reduced, and can make position sleeve 5 can pass through annular positioning groove reliable positioning, the positioning accuracy has been improved, the reliability of use has been guaranteed.
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 (8)
1. A main rotor locking device of a rotorcraft, characterized in that: including main rotor pivot (1), flange (2) and connect axle sleeve (3) in flange (2) one end, the middle part of axle sleeve (3) has the mounting hole, axle sleeve (3) have that the outside opening is big, the taper hole that the inboard opening is little, be provided with outer taper sleeve (4) of installing with axle sleeve (3) cooperation on axle sleeve (3), the medial extremity of axle sleeve (3) all is provided with the annular that cross-sectional shape is the U-shaped, and the medial extremity of axle sleeve (3) still is provided with from the sunken annular positioning groove of the medial surface in U-shaped annular groove, main rotor pivot (1) is gone up the cover and is provided with locking cover (7), has seted up two shrinkage pools (8) on locking cover (7), is provided with locking device in shrinkage pool (8).
2. A main rotor locking device for a rotorcraft according to claim 1, wherein: the U-shaped ring groove of shaft sleeve (3) is settled and is had protruding position sleeve (5) of interior annular with shaft sleeve (3) matched with, the protruding location of interior annular of position sleeve (5) is installed in the constant head tank of shaft sleeve (3), position sleeve (5) are settled and are passed the interior annular of position sleeve (5) through the fastener in shaft sleeve (3) protruding, behind the annular constant head tank of shaft sleeve (3) with outer taper sleeve (4) fixed connection, the medial extremity fixed mounting of position sleeve (5) has and is used for carrying out positioning disk (6) fixed a position to position sleeve (5).
3. A main rotor locking device for a rotorcraft according to claim 1, wherein: the through-hole of having arranged in the annular constant head tank of axle sleeve (3), the interior annular of position sleeve (5) is provided with the counter bore in protruding, still has arranged on positioning disk (6) and passes through the hole corresponding with the counter bore, the fastener can pass through the hole and enter into the counter bore of position sleeve (5) and through-hole and outer taper sleeve (4) fixed mounting, and the counter bore of position sleeve (5) is arranged at mounting hole edge all around, is provided with the screw thread that corresponds with the through-hole on the medial surface of outer taper sleeve (4).
4. A main rotor locking device for a rotorcraft according to claim 1, wherein: shrinkage pool (8) middle part is provided with baffle (16), baffle (16) middle part is seted up and is put through-hole (17), locking device includes hasp (9), spring (10) and round pin post (11), and spring (10) cover is established on hasp (9), and hasp (9) are including hasp head (12) and hasp post (13), and the one end of spring (10) supports hasp head (12), and the other end of spring (10) supports baffle (16).
5. A main rotor locking device for a rotorcraft according to claim 1, wherein: the utility model discloses a locking mechanism of a helicopter, including main rotor, locking cover (7), main rotor pivot (1) is gone up the cover and is equipped with oil blanket (14), is equipped with boss (15) between oil blanket (14) and locking cover (7), two hasp grooves (24) have been seted up on main rotor pivot (1).
6. A main rotor locking device for a rotorcraft according to claim 4, wherein: the locking post (13) comprises a first locking post (18), a second locking post (19) and a third locking post (20), the third locking post (20) is connected with the locking head (12), and the diameter of the second locking post (19) is smaller than that of the first locking post (18) and the third locking post (20).
7. A main rotor locking device for a rotorcraft according to claim 4, wherein: the spring (10) is sleeved on the second locking column (19) and the third locking column (20), the pin column (11) is perpendicular to the second locking column (19) and is fixed on the second locking column (19), a pin hole (21) is formed in the pin column (11), and a bolt (22) is inserted into the pin hole (21).
8. A main rotor locking device for a rotorcraft according to claim 1, wherein: bolt holes (23) are formed in the locking sleeve (7), the bolt holes (23) are communicated with the concave holes (8), and bolts (22) are movably arranged in the bolt holes (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121067343.1U CN215043674U (en) | 2021-05-19 | 2021-05-19 | Main rotor locking device of rotorcraft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121067343.1U CN215043674U (en) | 2021-05-19 | 2021-05-19 | Main rotor locking device of rotorcraft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215043674U true CN215043674U (en) | 2021-12-07 |
Family
ID=79212192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121067343.1U Active CN215043674U (en) | 2021-05-19 | 2021-05-19 | Main rotor locking device of rotorcraft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215043674U (en) |
-
2021
- 2021-05-19 CN CN202121067343.1U patent/CN215043674U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN215043674U (en) | Main rotor locking device of rotorcraft | |
| CN202560858U (en) | Double conical surface connected expansion sleeve without stress concentration | |
| CN210912438U (en) | Structure for positioning and locking flip cover of electric coupler | |
| US20230303273A1 (en) | Quick-Release Wing Structure and An Unmanned Aerial Vehicle Using the Same | |
| CN210769733U (en) | Quick-release lock | |
| CN208775015U (en) | A kind of rotor head mounting structure and unmanned helicopter | |
| CN211107972U (en) | Unmanned aerial vehicle main shaft and agricultural unmanned helicopter | |
| CN211059153U (en) | Push-button spring lock | |
| CN209889104U (en) | Composite wing aerial survey unmanned aerial vehicle | |
| CN203544380U (en) | Positioning device of inertial measurement unit platform | |
| CN112623182A (en) | Wing body connection structure and contain wing body connection structure's unmanned aerial vehicle | |
| CN216382162U (en) | Taper pin assembly | |
| CN214930666U (en) | Main shaft structure of internal combustion engine unmanned helicopter | |
| CN207106880U (en) | A kind of depopulated helicopter rotor oar clamp mechanism | |
| CN220640237U (en) | Folding locking mechanism of power arm of unmanned aerial vehicle | |
| CN214729605U (en) | Three-rotor-wing two-tilting vertical take-off and landing unmanned aerial vehicle V tail locking mechanism | |
| CN213920557U (en) | Hub reduction axle assembly and automobile | |
| CN214499569U (en) | Positioning structure of radial guide vane and pump body | |
| CN218865932U (en) | External wheel speed monitoring device | |
| CN208278308U (en) | A kind of quick-detachment locking device of divided wing | |
| CN215632225U (en) | Aviation lock device | |
| CN215614648U (en) | 737 passenger plane main undercarriage lug positioning and hole making device | |
| CN218751361U (en) | Locking folding member and have unmanned aerial vehicle of locking folding member | |
| CN111268095B (en) | Propeller shell and blade mounting structure | |
| CN218440217U (en) | Front wheel hub bearing with high sealing performance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230508 Address after: No. 102, Unit 1, Building 13, Jinyu Lanwan Community, Zutou Town, Taibai County, Baoji City, Shaanxi Province, 721000 Patentee after: Shaanxi Baohe Defense Technology Co.,Ltd. Address before: No. 1 Tonggang Road, National Pioneering Park, Haitong Town, Sheyang County, Yancheng City, Jiangsu Province Patentee before: YANCHENG XIANG SHENG CARBON FIBER TECHNOLOGY CO.,LTD. |