CN219584470U - Propeller hub structure convenient to disassemble and assemble and helicopter - Google Patents
Propeller hub structure convenient to disassemble and assemble and helicopter Download PDFInfo
- Publication number
- CN219584470U CN219584470U CN202223604023.2U CN202223604023U CN219584470U CN 219584470 U CN219584470 U CN 219584470U CN 202223604023 U CN202223604023 U CN 202223604023U CN 219584470 U CN219584470 U CN 219584470U
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- hub
- mounting hole
- fixing
- block
- transmission shaft
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/40—Weight reduction
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Abstract
The utility model discloses a hub structure and a helicopter convenient to assemble and disassemble, and belongs to the technical field of hubs. The propeller hub is detachably connected with the transmission shaft, a first mounting hole and a second mounting hole are formed in the propeller hub, and a first clamping block is further arranged on the propeller hub. Be provided with first installation piece, second installation piece and second fixture block on the paddle, first installation piece with first mounting hole normal running fit, the second installation piece can follow the second mounting hole removes, the second fixture block with first fixture block joint cooperation. When the blade and the hub in the hub structure convenient to assemble and disassemble are installed, in the rotating process, the second clamping block and the first clamping block can be clamped by rotating the blade, so that the blade and the hub are fixed.
Description
Technical Field
The utility model relates to the technical field of hubs, in particular to a hub structure convenient to assemble and disassemble and a helicopter.
Background
In the prior art, a model airplane generally adopts a threaded connection mode to fix a hub and a blade. The mode is not only firm in connection, but also easy to loose.
Disclosure of Invention
The utility model discloses a hub structure convenient to disassemble and assemble and a helicopter so as to solve the problems.
The technical scheme adopted by the utility model for solving the technical problems is as follows:
based on the above purpose, the utility model discloses a hub structure convenient to disassemble and assemble, comprising:
a transmission shaft;
the propeller comprises a propeller hub, wherein the propeller hub is detachably connected with a transmission shaft, a first mounting hole and a second mounting hole are formed in the propeller hub, the first mounting hole and the second mounting hole are both formed in the side wall of the propeller hub, the first mounting hole is formed in the radial direction of the propeller hub, the second mounting hole is arc-shaped, a first clamping block is further arranged on the propeller hub, and the first clamping block is located in the second mounting hole; and
the blade, be provided with first installation piece, second installation piece and second fixture block on the blade, first installation piece with first mounting hole normal running fit, the second installation piece can be followed the second mounting hole removes, the second fixture block with first fixture block joint cooperation.
Optionally: the propeller hub is provided with a fixing hole, the fixing hole is arranged along the axis direction of the propeller hub, and the transmission shaft is in clamping fit with the fixing hole.
Optionally: the transmission shaft is provided with a limit groove, the limit groove is arranged along the axis direction of the transmission shaft, and one side of the limit groove extends to the side wall of the transmission shaft;
the first mounting hole extends to be communicated with the fixing hole along the radial direction of the hub, a limiting block is arranged on the blade and located at one end of the first mounting block, which faces the fixing hole, and the limiting block is matched with the limiting groove in a clamping mode.
Optionally: the limiting block and the first mounting block are eccentrically arranged.
Optionally: the limit groove is a dovetail groove.
Optionally: the propeller comprises a propeller shaft, and is characterized in that at least two threaded holes are formed in the propeller shaft, the at least two threaded holes are formed in the top surface of the propeller shaft, and the propeller hub is connected with the propeller shaft through bolts.
Optionally: the rotor hub comprises a rotor hub body, and is characterized by further comprising a fixing piece, wherein a plurality of abdicating holes are formed in the fixing piece, the number of the abdicating holes is equal to that of the bolts, the cross section shape of the abdicating holes is identical to that of the bolt heads, and the fixing piece is clamped to the rotor hub body.
Optionally: the fixed piece is provided with a shifting block, the bottom of the shifting block is provided with a first inclined plane, the bottom of the shifting block is provided with a protrusion, and the protrusion is arranged along the radial direction of the hub;
the rotor hub is provided with a first fixing groove and a second fixing groove, the extending direction of the first fixing groove is parallel to the axis direction of the rotor hub, the second fixing groove is communicated with the first fixing groove, the second fixing groove extends inwards in the radial direction of the rotor hub, and the protrusion is matched with the second fixing groove in a clamping mode.
Optionally: the paddle hub is provided with a second inclined plane at the notch of the first fixing groove, and the second inclined plane is parallel to the first inclined plane.
Based on the above purpose, the utility model also discloses a helicopter which comprises a helicopter body, a motor and the rotor hub structure which is convenient to disassemble and assemble, wherein the motor is arranged on the helicopter body, the transmission shaft is rotationally connected with the helicopter body, and the motor is in transmission connection with the transmission shaft.
Compared with the prior art, the utility model has the beneficial effects that:
when the blade and the hub in the hub structure convenient to assemble and disassemble are installed, in the rotating process, the second clamping block and the first clamping block can be clamped by rotating the blade, so that the blade and the hub are fixed. In addition, according to the direction of rotation of oar hub, adjust the orientation of second mounting hole, make the oar hub when driving the paddle rotation, the paddle has the trend of continuing to follow second mounting hole pivoted, and when the paddle rotates the atress promptly, this power can be acted on second fixture block and first fixture block, makes second fixture block and first fixture block be connected more and more firm.
Drawings
FIG. 1 illustrates a schematic view of a hub structure for easy disassembly and assembly as disclosed in an embodiment of the present utility model;
FIG. 2 illustrates a schematic front view of a drive shaft disclosed in an embodiment of the present utility model;
FIG. 3 illustrates a schematic top view of a propeller shaft disclosed in an embodiment of the present utility model;
FIG. 4 illustrates a cross-sectional view of a hub at a through hole as disclosed in an embodiment of the present utility model;
FIG. 5 illustrates a close-up view of FIG. 4 in accordance with an embodiment of the present utility model;
FIG. 6 illustrates a cross-sectional view of a hub at a second mounting hole as disclosed in an embodiment of the present utility model;
FIG. 7 illustrates a schematic front view of a blade disclosed in an embodiment of the present utility model;
FIG. 8 illustrates a side view schematic of a blade disclosed in an embodiment of the present utility model;
fig. 9 shows a schematic view of a stator disclosed in an embodiment of the present utility model.
In the figure:
100-transmission shafts, 110-threaded holes, 120-limit grooves, 200-hubs, 210-fixing holes, 220-through holes, 230-first mounting holes, 240-first fixing grooves, 250-second fixing grooves, 260-second inclined surfaces, 270-second mounting holes, 280-first clamping blocks, 300-paddles, 310-first mounting blocks, 320-second mounting blocks, 330-second clamping blocks, 340-limit blocks, 400-fixing sheets, 410-abdicating grooves, 420-shifting blocks, 430-bulges and 440-first inclined surfaces.
Detailed Description
The utility model will now be described in further detail by way of specific examples of embodiments in connection with the accompanying drawings.
Examples:
referring to fig. 1 to 6, an embodiment of the present utility model discloses a hub structure which is convenient to disassemble and assemble, and comprises a transmission shaft 100, a hub 200 and a blade 300. The rotor hub 200 is detachably connected with the transmission shaft 100, the rotor hub 200 is provided with a first mounting hole 230 and a second mounting hole 270, the first mounting hole 230 and the second mounting hole 270 are both positioned on the side wall of the rotor hub 200, the first mounting hole 230 is arranged along the radial direction of the rotor hub 200, the second mounting hole 270 is arc-shaped, the rotor hub 200 is also provided with a first clamping block 280, and the first clamping block 280 is positioned in the second mounting hole 270. The blade 300 is provided with a first mounting block 310, a second mounting block 320 and a second clamping block 330, the first mounting block 310 is in running fit with the first mounting hole 230, the second mounting block 320 can move along the second mounting hole 270, and the second clamping block 330 is in clamping fit with the first clamping block 280.
When the blade 300 and the hub 200 in the hub structure which is convenient to assemble and disassemble are installed, in the process of rotation, the second clamping block 330 and the first clamping block 280 can be clamped by rotating the blade 300, so that the blade 300 and the hub 200 are fixed. In addition, according to the rotation direction of the hub 200, the direction of the second mounting hole 270 is adjusted, so that when the hub 200 drives the blade 300 to rotate, the blade 300 has a tendency to continue to rotate along the second mounting hole 270, that is, when the blade 300 is stressed in rotation, the force can act on the second clamping block 330 and the first clamping block 280, so that the second clamping block 330 and the first clamping block 280 are more and more firmly connected.
Referring to fig. 1 to 3, the top of the driving shaft 100 is provided with a screw hole for connection with the hub 200 and a limiting groove 120 for positioning the blade 300. The screw hole and the limit groove 120 are all arranged along the axis direction of the transmission shaft 100, the screw hole and the limit groove 120 are all extended to the end face of the transmission shaft 100, the screw hole is positioned at the position of the transmission shaft 100 close to the middle, the limit groove 120 is positioned at the position close to the edge of the transmission shaft 100, and one side of the limit groove 120 is extended to the side wall of the transmission shaft 100.
At least two screw holes are provided in the drive shaft 100, and the screw holes are spaced apart. The number of the limit grooves 120 on the transmission shaft 100 is identical to that of the paddles 300, and the positions of the limit grooves 120 correspond to those of the paddles 300.
Referring to fig. 4 to 6, a fixing hole 210 is provided at the bottom of the hub 200, the shape of the fixing hole 210 is identical to that of the transmission shaft 100, and the fixing hole 210 is engaged with the pus shaft. First and second mounting holes 230 and 270 are provided on the sidewall of the hub 200. The first mounting holes 230 are disposed along the radial direction of the hub 200, and the first mounting holes 230 penetrate the sidewall of the hub 200 to communicate with the fixing holes 210. The second mounting hole 270 communicates with the first mounting hole 230, and the second mounting hole 270 has an arc shape. The hub 200 is further provided with a first clamping block 280, the first clamping block 280 is located in the second mounting hole 270, and the first clamping block 280 is hemispherical.
A plurality of through holes 220 are provided at the top of the hub 200, the number of through holes 220 is identical to the number of screw holes, and the position arrangement of the through holes 220 is identical to the position arrangement of the screw holes, so that the bolts are mounted.
Referring to fig. 7 and 8, the blade 300 is provided with a first mounting block 310, a second mounting block 320, a second clamping block 330 and a limiting block 340. The first mounting block 310 is coaxially disposed with the blade 300, and the cross section of the first mounting block 310 is circular, and the first mounting block 310 is in rotational fit with the first mounting hole 230. The second mounting block 320 is located at a sidewall of the first mounting block 310, and the second mounting block 320 is movable along the second mounting block 320. The second clamping block 330 is located at a position on the second mounting block 320 corresponding to the first clamping block 280, and when the second clamping block 330 rotates in the second mounting hole 270, the second clamping block 330 can form a clamping connection with the first clamping block 280, so that the blade 300 and the hub 200 are fixed.
The stopper 340 is located at one end of the first mounting block 310 facing away from the blade 300, and when the first mounting block 310 is mounted in the first mounting hole 230, the stopper 340 extends into the fixing hole 210 of the hub 200. When the propeller hub 200 and the transmission shaft 100 are installed, the positioning effect can be achieved through the cooperation of the limiting block 340 and the limiting groove 120, and the limiting block 340 is clamped into the limiting groove, so that the blade 300 can be more stable.
In this embodiment, the limiting block 340 and the first mounting block 310 are eccentrically disposed, so that after the installation is completed, the blade 300 can be fixed together through the limiting block 340 and the second clamping block 330, and the working stability of the blade 300 is enhanced.
The limiting groove 120 may be configured as a dovetail groove or a T-shaped groove, which is wide in the outer side and wide in the inner side, so that the limiting block 340 can be fixed on one hand, and the limiting block 340 can be ensured to slide in the limiting groove 120 smoothly on the other hand.
Referring to fig. 1 and 9, the hub structure for easy disassembly and assembly disclosed in this embodiment further includes a fixing piece 400. The fixing piece 400 is provided with a plurality of abdication holes, the number of the abdication holes is equal to that of the bolts, the arrangement mode of the abdication holes is the same as that of the threaded holes, and the cross section shape of the abdication holes is the same as that of the bolt heads, so that when the fixing piece 400 is clamped to the hub 200, the bolt heads can be clamped into the abdication holes on the fixing piece 400.
When a plurality of bolt heads are simultaneously clamped into the abdication holes, the bolt heads are mutually fixed, so that the bolts cannot continuously rotate, and the condition that the bolts are loosened when the propeller hub 200 rotates along with the transmission shaft 100 is avoided.
A shifting block 420 is arranged on the fixing piece 400, a first inclined surface 440 is arranged at the bottom of the shifting block 420, a protrusion 430 is arranged at the bottom of the shifting block 420, and the protrusion 430 is arranged along the radial direction of the hub 200;
the hub 200 is provided with a first fixing groove 240 and a second fixing groove 250. The extending direction of the first fixing groove 240 is parallel to the axial direction of the hub 200, and the hub 200 is provided with a second inclined surface 260 at the notch of the first fixing groove 240, and the second inclined surface 260 is parallel to the first inclined surface 440. The second fixing groove 250 communicates with the first fixing groove 240, and the second fixing groove 250 extends inward in the radial direction of the hub 200, and the protrusion 430 is snap-fitted with the second fixing groove 250.
When the fixing piece 400 is installed, the fixing piece 400 is only pressed down, the shifting block 420 on the fixing piece 400 can be clamped into the first fixing groove 240, and the protrusion 430 on the shifting block 420 can be clamped into the second fixing groove 250, so that the fixing piece 400 and the hub 200 are fixed. The first inclined surface 440 and the second inclined surface 260 are provided to facilitate the better engagement of the dial 420 into the first fixing groove 240.
When the fixing piece 400 is detached from the hub 200, the protrusion 430 is separated from the second fixing groove 250 by pressing the portion of the dial block 420 that leaks out of the first fixing groove 240.
The embodiment of the utility model also discloses a helicopter which comprises a helicopter body, a motor and the hub structure which is convenient to disassemble and assemble, wherein the motor is arranged on the helicopter body, the transmission shaft 100 is rotationally connected with the helicopter body, and the motor is in transmission connection with the transmission shaft 100.
When the blade 300 and the hub 200 of the helicopter disclosed in this embodiment are installed, in a rotating process, the second clamping block 330 and the first clamping block 280 can be clamped by rotating the blade 300, so that the blade 300 and the hub 200 are fixed. In addition, according to the rotation direction of the hub 200, the direction of the second mounting hole 270 is adjusted, so that when the hub 200 drives the blade 300 to rotate, the blade 300 has a tendency to continue to rotate along the second mounting hole 270, that is, when the blade 300 is stressed in rotation, the force can act on the second clamping block 330 and the first clamping block 280, so that the second clamping block 330 and the first clamping block 280 are more and more firmly connected.
The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. The utility model provides a oar hub structure convenient to dismouting, its characterized in that includes:
a transmission shaft;
the propeller comprises a propeller hub, wherein the propeller hub is detachably connected with a transmission shaft, a first mounting hole and a second mounting hole are formed in the propeller hub, the first mounting hole and the second mounting hole are both formed in the side wall of the propeller hub, the first mounting hole is formed in the radial direction of the propeller hub, the second mounting hole is arc-shaped, a first clamping block is further arranged on the propeller hub, and the first clamping block is located in the second mounting hole; and
the blade, be provided with first installation piece, second installation piece and second fixture block on the blade, first installation piece with first mounting hole normal running fit, the second installation piece can be followed the second mounting hole removes, the second fixture block with first fixture block joint cooperation.
2. The hub structure of claim 1, wherein the hub is provided with a fixing hole, the fixing hole is arranged along an axial direction of the hub, and the transmission shaft is in clamping fit with the fixing hole.
3. The hub structure of claim 2, wherein the drive shaft is provided with a limit groove, the limit groove is arranged along the axis direction of the drive shaft, and one side of the limit groove extends to the side wall of the drive shaft;
the first mounting hole extends to be communicated with the fixing hole along the radial direction of the hub, a limiting block is arranged on the blade and located at one end of the first mounting block, which faces the fixing hole, and the limiting block is matched with the limiting groove in a clamping mode.
4. A hub structure according to claim 3, wherein the stopper is arranged eccentrically to the first mounting block.
5. The hub structure of claim 3, wherein the limit groove is a dovetail groove.
6. The hub structure convenient to disassemble and assemble according to claim 1, wherein at least two threaded holes are formed in the transmission shaft, the at least two threaded holes are located on the top surface of the transmission shaft, and the hub is connected with the transmission shaft through bolts.
7. The hub structure of claim 6, further comprising a fixing piece, wherein a plurality of abdicating holes are formed in the fixing piece, the number of the abdicating holes is equal to that of the bolts, the cross-sectional shape of the abdicating holes is identical to that of the bolt heads, and the fixing piece is clamped to the hub.
8. The hub structure of claim 7, wherein a shifting block is arranged on the fixing piece, a first inclined surface is arranged at the bottom of the shifting block, a protrusion is arranged at the bottom of the shifting block, and the protrusion is arranged along the radial direction of the hub;
the rotor hub is provided with a first fixing groove and a second fixing groove, the extending direction of the first fixing groove is parallel to the axis direction of the rotor hub, the second fixing groove is communicated with the first fixing groove, the second fixing groove extends inwards in the radial direction of the rotor hub, and the protrusion is matched with the second fixing groove in a clamping mode.
9. The hub structure of claim 8, wherein the hub is provided with a second inclined surface at the notch of the first fixing groove, and the second inclined surface is parallel to the first inclined surface.
10. A helicopter, comprising a main body, a motor and a hub structure which is convenient to disassemble and assemble and is characterized in that the motor is arranged on the main body, a transmission shaft is rotationally connected with the main body, and the motor is in transmission connection with the transmission shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223604023.2U CN219584470U (en) | 2022-12-30 | 2022-12-30 | Propeller hub structure convenient to disassemble and assemble and helicopter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223604023.2U CN219584470U (en) | 2022-12-30 | 2022-12-30 | Propeller hub structure convenient to disassemble and assemble and helicopter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219584470U true CN219584470U (en) | 2023-08-25 |
Family
ID=87666548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223604023.2U Active CN219584470U (en) | 2022-12-30 | 2022-12-30 | Propeller hub structure convenient to disassemble and assemble and helicopter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219584470U (en) |
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2022
- 2022-12-30 CN CN202223604023.2U patent/CN219584470U/en active Active
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