CN213566476U - Helicopter anti-beating structure - Google Patents
Helicopter anti-beating structure Download PDFInfo
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- CN213566476U CN213566476U CN202022390010.4U CN202022390010U CN213566476U CN 213566476 U CN213566476 U CN 213566476U CN 202022390010 U CN202022390010 U CN 202022390010U CN 213566476 U CN213566476 U CN 213566476U
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- oar
- inner groove
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- 238000010009 beating Methods 0.000 title claims abstract description 38
- 230000005540 biological transmission Effects 0.000 claims abstract description 12
- 230000007246 mechanism Effects 0.000 claims abstract description 10
- 230000008878 coupling Effects 0.000 claims abstract description 4
- 238000010168 coupling process Methods 0.000 claims abstract description 4
- 238000005859 coupling reaction Methods 0.000 claims abstract description 4
- 238000009434 installation Methods 0.000 abstract description 4
- 230000009471 action Effects 0.000 description 3
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001141 propulsive effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a helicopter anti-beating structure, which comprises a transmission main shaft and a base arranged at the top of the transmission main shaft, wherein the top of the base is provided with a top seat, the top of the top seat is rotatably connected with two adjusting seats, two sides of the base are respectively provided with a paddle frame, the bottom end of the paddle frame is fixed at the inner side of the base, the top end of the paddle frame is provided with a rotating paddle, and two sides of the top seat are respectively provided with an H-shaped anti-beating frame; prevent beating the frame through the installation H shape in the both sides of footstock for the bottom of the frame is prevented beating in the H shape can carry out good the blockking to the bottom of oar frame, thereby prevent that oar frame and rotatory oar from raising up under the high rotatory condition, can prevent the condition emergence of beating, and through setting up by the base block, the side fastener, first inside groove, interior ejector pad, the connecting rod, first spring, the coupling mechanism that interior card pole and pole hole are constituteed, make the H shape prevent beating the mounting means of frame very simple and convenient, it has brought the convenience also to prevent beating the dismantlement of frame for follow-up H shape simultaneously more.
Description
Technical Field
The utility model belongs to the technical field of the oar is prevented beating by the screw, concretely relates to oar structure is prevented beating by helicopter.
Background
The working principle of the helicopter propeller is a device which rotates in the air by means of blades and converts the rotating power of an engine into propulsive force, is an important structure in the whole helicopter, is generally arranged at the top of the helicopter and is connected with a transmission shaft, and can realize the actions of lifting the helicopter and the like.
Current helicopter screw when using, can fix rotatory oar on the oar frame to fix the oar frame in the both sides of base, but the high-speed rotation of screw when in-service use causes screw and oar frame to take place to raise because of factors such as centrifugal force easily, thereby has the risk of beating the oar, influences the stability in use, for this reason the utility model provides a helicopter prevents beating the oar structure.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a helicopter prevents structure of beating to current helicopter screw that proposes in solving above-mentioned background art can fix rotatory oar on the oar frame when using, and fix the oar frame in the both sides of base, but the high-speed rotation of screw when in-service use, causes screw and oar frame to take place to raise because of factors such as centrifugal force easily, thereby has the risk of beating, influences the stability in use problem.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a helicopter prevents beating structure, includes the transmission main shaft and installs the base at transmission main shaft top, the footstock is installed at the top of base, and the top swivelling joint of footstock has two regulation seats, the both sides of base all are provided with the oar frame, the bottom mounting of oar frame is in the inboard of base, and the top of oar frame installs rotatory oar, the both sides of footstock all install the H shape and prevent beating the frame, and the H shape prevents beating the bottom of frame and laminating mutually with the bottom of oar frame, the top wheel is installed on the top of frame is prevented beating to the H shape, the both sides surface of footstock all is equipped with the U-shaped connecting seat of integral type, and the top of U-shaped connecting seat is in the H shape and prevents beating the inboard of frame, the H shape is prevented beating and is equipped with coupling mechanism between frame and the U-.
Preferably, the connecting mechanism comprises a base block and side clamping pieces arranged at two ends of the base block, a first inner groove is formed in the base block, two inner pushing blocks are arranged in the first inner groove, a connecting rod is fixed to one side of each inner pushing block, the top end of each connecting rod penetrates through the outer side of the base block and is fixed to the side clamping piece, a first spring is sleeved on the surface of each connecting rod and is located on the inner side of the corresponding first inner groove, an inner clamping rod is fixed to the top end of each side clamping piece, rod holes corresponding to the inner clamping rods are formed in the surface of the H-shaped anti-hitting frame and the surface of the U-shaped connecting seat, the top end of each inner clamping rod penetrates through the H-shaped anti-hitting frame, and the top end of each inner clamping rod penetrates through the inner side of each rod hole.
Preferably, both ends of the first inner groove are provided with connecting holes corresponding to the connecting rods, and the connecting holes are communicated with the outer side surface of the base block.
Preferably, the inner push block and the first inner groove are both cylindrical, and the outer diameter of the inner push block is consistent with the inner diameter of the first inner groove.
Preferably, the both sides surface of knock-out pulley all is provided with cylindrical flexible fixture block, and the H shape prevents that the top of fighting the frame sets up the circular port corresponding with cylindrical flexible fixture block, the top of cylindrical flexible fixture block is in the inboard of circular port.
Preferably, a second inner groove is formed in the top wheel, a second spring is arranged in the second inner groove, and the bottom ends of the two cylindrical telescopic clamping blocks are respectively located at two ends of the inner side of the second inner groove.
Preferably, both ends of the second inner groove are provided with pop-up holes corresponding to the size of the top end of the cylindrical telescopic clamping block, and the pop-up holes are communicated with the outer side surface of the top wheel.
Compared with the prior art, the beneficial effects of the utility model are that:
1. prevent beating the frame through the installation H shape in the both sides of footstock for the bottom of the frame is prevented beating in the H shape can carry out good the blockking to the bottom of oar frame, thereby prevent that oar frame and rotatory oar from raising up under the high rotatory condition, can prevent the condition emergence of beating, and through setting up by the base block, the side fastener, first inside groove, interior ejector pad, the connecting rod, first spring, the coupling mechanism that interior card pole and pole hole are constituteed, make the H shape prevent beating the mounting means of frame very simple and convenient, it has brought the convenience also to prevent beating the dismantlement of frame for follow-up H shape simultaneously more.
2. Through the second inside groove, second spring, the cylindrical flexible fixture block and the circular port that set up for the dismouting mode of knock-out pulley is very convenient, and it is convenient to have brought for follow-up maintainer to the dismantlement change of knock-out pulley.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of a portion of the area A in FIG. 1 according to the present invention;
FIG. 3 is a top cross-sectional view of the junction between the side clip and the H-shaped anti-knock frame;
fig. 4 is a sectional view of the junction between the top wheel and the H-shaped anti-strike frame in embodiment 2 of the present invention;
in the figure: 1. a transmission main shaft; 2. a base; 3. an adjusting seat; 4. a top seat; 5. a top wheel; 6. h-shaped anti-hitting frame; 7. a paddle frame; 8. rotating the paddle; 9. a U-shaped connecting seat; 10. a base block; 11. a side fastener; 12. a circular hole; 13. a cylindrical telescopic fixture block; 14. an inner clamping rod; 15. a rod hole; 16. a first inner tank; 17. a first spring; 18. an inner push block; 19. a connecting rod; 20. a second inner tank; 21. a second spring.
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.
Example 1
Referring to fig. 1 to 3, the present invention provides a technical solution: an anti-oar-beating structure of a helicopter comprises a transmission main shaft 1 and a base 2 arranged on the top of the transmission main shaft 1, wherein the top of the base 2 is provided with a top seat 4, the top of the top seat 4 is rotationally connected with two adjusting seats 3, both sides of the base 2 are provided with a paddle frame 7, the bottom end of the paddle frame 7 is fixed at the inner side of the base 2, the top end of the paddle frame 7 is provided with a rotating paddle 8, both sides of the top seat 4 are provided with H-shaped anti-hitting frames 6, and the bottom end of the H-shaped anti-beating frame 6 is jointed with the bottom end of the paddle frame 7, so that the bottom end of the paddle frame 7 can be well blocked, thereby preventing the paddle frame 7 and the rotating paddle 8 from being lifted under the condition of high rotation, the top end of the H-shaped anti-beating frame 6 is provided with the top wheel 5, the two side surfaces of the top seat 4 are provided with the integrated U-shaped connecting seats 9, the top end of the U-shaped connecting seat 9 is positioned at the inner side of the H-shaped anti-hitting frame 6, and a connecting mechanism is arranged between the H-shaped anti-hitting frame 6 and the U-shaped connecting seat 9.
In this embodiment, preferably, the connecting mechanism includes a base block 10 and side clamping pieces 11 disposed at two ends of the base block 10, a first inner groove 16 is disposed inside the base block 10, two inner pushing blocks 18 are disposed inside the first inner groove 16, a connecting rod 19 is welded and fixed to one side of each inner pushing block 18, a top end of the connecting rod 19 penetrates through the outer side of the base block 10 and is welded and fixed to the side clamping pieces 11, a first spring 17 is sleeved on a surface of the connecting rod 19, the first spring 17 is located inside the first inner groove 16, an inner clamping rod 14 is welded and fixed to a top end of each side clamping piece 11, rod holes 15 corresponding to the inner clamping rods 14 are formed in the surface of the H-shaped anti-knock frame 6 and the surface of the U-shaped connecting seat 9, the top end of each inner clamping rod 14 penetrates through the H-shaped anti-knock frame 6, and the top end of each inner clamping rod 14 penetrates through the inner sides of the rod holes 15, so that the mounting manner.
In this embodiment, preferably, both ends of the first inner groove 16 are provided with connecting holes corresponding to the connecting rod 19, and the connecting holes are communicated with the outer side surface of the base block 10, so that the top end of the connecting rod 19 can smoothly penetrate through the outer side of the base block 10 to be fixed with the side clamping piece 11.
In this embodiment, it is preferable that the inner pushing block 18 and the first inner groove 16 are both cylindrical, and the outer diameter of the inner pushing block 18 is consistent with the inner diameter of the first inner groove 16, so that the inner pushing block 18 can smoothly slide in the first inner groove 16.
Example 2
Referring to fig. 1 to 4, the present invention provides a technical solution: an anti-oar-beating structure of a helicopter comprises a transmission main shaft 1 and a base 2 arranged on the top of the transmission main shaft 1, wherein the top of the base 2 is provided with a top seat 4, the top of the top seat 4 is rotationally connected with two adjusting seats 3, both sides of the base 2 are provided with a paddle frame 7, the bottom end of the paddle frame 7 is fixed at the inner side of the base 2, the top end of the paddle frame 7 is provided with a rotating paddle 8, both sides of the top seat 4 are provided with H-shaped anti-hitting frames 6, and the bottom end of the H-shaped anti-beating frame 6 is jointed with the bottom end of the paddle frame 7, so that the bottom end of the paddle frame 7 can be well blocked, thereby preventing the paddle frame 7 and the rotating paddle 8 from being lifted under the condition of high rotation, the top end of the H-shaped anti-beating frame 6 is provided with the top wheel 5, the two side surfaces of the top seat 4 are provided with the integrated U-shaped connecting seats 9, the top end of the U-shaped connecting seat 9 is positioned at the inner side of the H-shaped anti-hitting frame 6, and a connecting mechanism is arranged between the H-shaped anti-hitting frame 6 and the U-shaped connecting seat 9.
In this embodiment, preferably, the connecting mechanism includes a base block 10 and side clamping pieces 11 disposed at two ends of the base block 10, a first inner groove 16 is disposed inside the base block 10, two inner pushing blocks 18 are disposed inside the first inner groove 16, a connecting rod 19 is welded and fixed to one side of each inner pushing block 18, a top end of the connecting rod 19 penetrates through the outer side of the base block 10 and is welded and fixed to the side clamping pieces 11, a first spring 17 is sleeved on a surface of the connecting rod 19, the first spring 17 is located inside the first inner groove 16, an inner clamping rod 14 is welded and fixed to a top end of each side clamping piece 11, rod holes 15 corresponding to the inner clamping rods 14 are formed in the surface of the H-shaped anti-knock frame 6 and the surface of the U-shaped connecting seat 9, the top end of each inner clamping rod 14 penetrates through the H-shaped anti-knock frame 6, and the top end of each inner clamping rod 14 penetrates through the inner sides of the rod holes 15, so that the mounting manner.
In this embodiment, preferably, both ends of the first inner groove 16 are provided with connecting holes corresponding to the connecting rod 19, and the connecting holes are communicated with the outer side surface of the base block 10, so that the top end of the connecting rod 19 can smoothly penetrate through the outer side of the base block 10 to be fixed with the side clamping piece 11.
In this embodiment, it is preferable that the inner pushing block 18 and the first inner groove 16 are both cylindrical, and the outer diameter of the inner pushing block 18 is consistent with the inner diameter of the first inner groove 16, so that the inner pushing block 18 can smoothly slide in the first inner groove 16.
In this embodiment, preferably, the two side surfaces of the top wheel 5 are provided with the cylindrical telescopic fixture blocks 13, the top end of the H-shaped anti-knock frame 6 is provided with the circular holes 12 corresponding to the cylindrical telescopic fixture blocks 13, the top end of the cylindrical telescopic fixture blocks 13 is located inside the circular holes 12, the inside of the top wheel 5 is provided with the second inner groove 20, the inside of the second inner groove 20 is provided with the second spring 21, the bottom ends of the two cylindrical telescopic fixture blocks 13 are located at the two inner ends of the second inner groove 20, the two ends of the second inner groove 20 are provided with the pop-up holes corresponding to the top end size of the cylindrical telescopic fixture blocks 13, and the pop-up holes are communicated with the outer side surface of the top wheel 5, so that the top.
The utility model discloses a theory of operation and use flow: when the H-shaped anti-hitting frame 6 needs to be installed on two sides of the top seat 4, the H-shaped anti-hitting frame 6 is moved to one side of the top seat 4, so that the top end of the U-shaped connecting seat 9 can be inserted into the inner side of the bottom end of the H-shaped anti-hitting frame 6, the rod hole 15 on the surface of the U-shaped connecting seat 9 can be aligned with the rod hole 15 on the surface of the H-shaped anti-hitting frame 6, then the side clamping pieces 11 on two ends of the base block 10 are simultaneously pulled outwards, so that the connecting rod 19 can pull the inner push block 18 to the top end of the first inner groove 16, and the first spring 17 is gradually compressed, so that the two side clamping pieces 11 can be smoothly pulled until the distance between the two inner clamping rods 14 is larger than the width of the H-shaped anti-hitting frame 6, at the moment, the base block 10 is pushed towards the H-shaped anti-hitting frame 6, so that the two side clamping pieces 11 can be respectively pushed to two sides of the H-shaped anti-hitting frame 6, the first spring 17 pushes the inner push block 18 back under the self elastic action, so that the inner push block 18 pulls the side clamping piece 11 and the inner clamping rod 14 back through the connecting rod 19, the top end of the inner clamping rod 14 can penetrate through the H-shaped anti-beating frame 6 and is clamped in the rod hole 15 at the top end of the U-shaped connecting seat 9, the connection between the H-shaped anti-beating frame 6 and the U-shaped connecting seat 9 is rapidly completed, the installation of the H-shaped anti-beating frame 6 is completed, the bottom end of the H-shaped anti-beating frame 6 can be located at the top of the paddle frame 7, a good blocking effect is achieved on the paddle frame 7, the paddle frame 7 and the rotary paddle 8 are prevented from being lifted under the condition of high rotation, and the situation of beating can be prevented;
when the top wheel 5 is damaged and needs to be removed and replaced, the cylindrical telescopic fixture block 13 at the inner side of the circular hole 12 is pressed down from the two sides of the H-shaped anti-knock frame 6, so that the top end of the cylindrical telescopic fixture block 13 is gradually pressed into the inner side of the second inner groove 20, and the second spring 21 is gradually compressed, the top ends of the cylindrical telescopic fixture blocks 13 can not limit the top wheel 5 any more, at the moment, the top wheel 5 can be directly detached from the inner side of the top end of the H-shaped anti-knock frame 6 for replacement, the top ends of the two cylindrical telescopic fixture blocks 13 are pressed down again during subsequent installation, then the top wheel 5 is pushed into the inner side of the top end of the H-shaped anti-knock frame 6, and the top end of the cylindrical telescopic clamping block 13 is popped to the inner side of the circular hole 12 under the action of the second spring 21, the disassembly and replacement of the top wheel 5 can be quickly completed, and convenience is brought to the disassembly and replacement of the top wheel 5 by subsequent operators.
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 helicopter prevents structure of beating, includes transmission main shaft (1) and installs base (2) at transmission main shaft (1) top, footstock (4) are installed at the top of base (2), and the top swivelling joint of footstock (4) has two to adjust seat (3), the both sides of base (2) all are provided with oar frame (7), the bottom mounting of oar frame (7) is in the inboard of base (2), and rotatory oar (8), its characterized in that are installed on the top of oar frame (7): the utility model discloses a take-up and take-up device, including footstock (4), the both sides of footstock (4) all install the H shape and prevent hitting frame (6), and the H shape prevents hitting the bottom of frame (6) and the bottom of oar frame (7) and laminates mutually, the H shape prevents hitting the top of frame (6) and installs top wheel (5), the both sides surface of footstock (4) all is equipped with the U-shaped connecting seat (9) of integral type, and the top of U-shaped connecting seat (9) is in the H shape and prevents hitting the inboard of frame (6), the H shape is prevented hitting and is equipped with coupling mechanism between frame (6) and U-shaped connecting seat (9).
2. A helicopter anti-feathering structure as defined in claim 1 wherein: the connecting mechanism comprises a base block (10) and side clamping pieces (11) arranged at two ends of the base block (10), a first inner groove (16) is formed in the base block (10), two inner pushing blocks (18) are arranged in the first inner groove (16), a connecting rod (19) is fixed on one side of each inner pushing block (18), the top end of each connecting rod (19) penetrates through the outer side of the base block (10) and is fixed with the side clamping pieces (11), a first spring (17) is sleeved on the surface of each connecting rod (19), the first spring (17) is located on the inner side of each first inner groove (16), an inner clamping rod (14) is fixed at the top end of each side clamping piece (11), rod holes (15) corresponding to the inner clamping rods (14) are formed in the surface of the H-shaped anti-knock frame (6) and the surface of the U-shaped connecting seat (9), and the top ends of the inner clamping rods (14) penetrate through the H-shaped anti-knock frame (6), and the top end of the inner clamping rod (14) penetrates to the inner side of the rod hole (15).
3. A helicopter anti-feathering structure as defined in claim 2, further comprising: and connecting holes corresponding to the connecting rods (19) are formed in both ends of the first inner groove (16), and the connecting holes are communicated with the outer side surface of the base block (10).
4. A helicopter anti-feathering structure as defined in claim 2, further comprising: the inner push block (18) and the first inner groove (16) are both cylindrical, and the outer diameter of the inner push block (18) is consistent with the inner diameter of the first inner groove (16).
5. A helicopter anti-feathering structure as defined in claim 1 wherein: the two side surfaces of the top wheel (5) are provided with cylindrical telescopic fixture blocks (13), the top end of the H-shaped anti-hitting frame (6) is provided with circular holes (12) corresponding to the cylindrical telescopic fixture blocks (13), and the top end of each cylindrical telescopic fixture block (13) is located on the inner side of each circular hole (12).
6. A helicopter anti-feathering structure as defined in claim 5, wherein: a second inner groove (20) is formed in the top wheel (5), a second spring (21) is arranged in the second inner groove (20), and the bottom ends of the two cylindrical telescopic fixture blocks (13) are respectively located at two ends of the inner side of the second inner groove (20).
7. A helicopter anti-feathering structure as defined in claim 6 wherein: and two ends of the second inner groove (20) are provided with pop-up holes corresponding to the top size of the cylindrical telescopic clamping block (13), and the pop-up holes are communicated with the outer side surface of the top wheel (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022390010.4U CN213566476U (en) | 2020-10-25 | 2020-10-25 | Helicopter anti-beating structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022390010.4U CN213566476U (en) | 2020-10-25 | 2020-10-25 | Helicopter anti-beating structure |
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| Publication Number | Publication Date |
|---|---|
| CN213566476U true CN213566476U (en) | 2021-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022390010.4U Active CN213566476U (en) | 2020-10-25 | 2020-10-25 | Helicopter anti-beating structure |
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| Country | Link |
|---|---|
| CN (1) | CN213566476U (en) |
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2020
- 2020-10-25 CN CN202022390010.4U patent/CN213566476U/en active Active
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