CN214138952U - Tandem type is decelerator and unmanned helicopter for unmanned helicopter - Google Patents
Tandem type is decelerator and unmanned helicopter for unmanned helicopter Download PDFInfo
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- CN214138952U CN214138952U CN202120132347.7U CN202120132347U CN214138952U CN 214138952 U CN214138952 U CN 214138952U CN 202120132347 U CN202120132347 U CN 202120132347U CN 214138952 U CN214138952 U CN 214138952U
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- box body
- bevel gear
- unmanned helicopter
- rotor shaft
- tandem
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Abstract
The utility model belongs to the technical field of unmanned helicopter, concretely relates to tandem decelerator and unmanned helicopter for unmanned helicopter. The device comprises: a box body; the rotor shaft is longitudinally arranged, and a large bevel gear is fixed at the end part of the rotor shaft positioned in the box body; the transmission shaft is transversely arranged, and a small bevel gear meshed with the large bevel gear is fixed at the end part of the transmission shaft positioned in the box body; wherein the transmission shaft is suitable for driving the rotor shaft to rotate through the meshing of the small bevel gear and the large bevel gear. The beneficial effects of the utility model are that, the utility model discloses an end portion that tandem unmanned helicopter used decelerator's rotor shaft stretched into the box is provided with big bevel gear, and the tip that the transmission shaft stretched into the box is provided with little bevel gear, and the transmission shaft drives the rotor shaft rotation through the meshing of little, big bevel gear, simple structure, the equipment of being convenient for.
Description
Technical Field
The utility model belongs to the technical field of unmanned helicopter, concretely relates to tandem decelerator and unmanned helicopter for unmanned helicopter.
Background
The output speed of the engine of the helicopter is very high, while the rotation speed of the rotor is relatively slow, so that a gear reducer is needed to realize the transmission of motion and power, and the rotor is driven to rotate by the reducer.
The existing speed reducer has a complex structure and is inconvenient to install. Therefore, a reduction gear for a tandem type unmanned helicopter having a simple structure is required.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a tandem formula is decelerator and unmanned helicopter for unmanned helicopter to solve the technical problem that current decelerator structure is complicated.
In order to solve the technical problem, the utility model provides a tandem reduction gear for unmanned helicopter, include: a box body; the rotor shaft is longitudinally arranged, and a large bevel gear is fixed at the end part of the rotor shaft positioned in the box body; the transmission shaft is transversely arranged, and a small bevel gear meshed with the large bevel gear is fixed at the end part of the transmission shaft positioned in the box body; wherein the transmission shaft is suitable for driving the rotor shaft to rotate through the meshing of the small bevel gear and the large bevel gear.
Furthermore, an oil filling hole and an oil filling screw for plugging the oil filling hole are arranged on the upper end surface of the box body; and the lower end surface of the box body is provided with an oil drain hole and an oil drain screw for plugging the oil drain hole.
Furthermore, an oil level observation hole and an observation screw for plugging the oil level observation hole are arranged on the side end surface of the box body; wherein the center of the observation screw is provided with a through hole and a plugging piece for plugging the through hole; the plugging piece is made of transparent materials.
Furthermore, the box body comprises an upper box body, a lower box body and an end cover which are surrounded; the rotor shaft penetrates through the upper box body and extends into the box body, and is rotatably connected with the upper box body through a first bearing; the transmission shaft penetrates through the end cover to extend into the box body and is rotatably connected with the end cover through a second bearing; and the large bevel gear is rotationally connected with the lower box body through a third bearing.
Further, a first abutting block is arranged on the part, located in the box body, of the rotor shaft; the first abutting block abuts against the end face, facing the inside of the box body, of the first bearing through the first gasket.
Furthermore, a second abutting block is arranged on the end face, away from the large bevel gear, of the small bevel gear; and the second abutting block is abutted with the end face of the second bearing facing the inside of the box body through a second gasket.
Further, a third abutting block is arranged on the bottom end face of the large bevel gear; and the third abutting block is abutted against the end face of the third bearing facing the interior of the box body through a third gasket.
In another aspect, the present invention also provides an unmanned helicopter, including: a rotor and the above-described reduction gear for a tandem unmanned helicopter; the speed reducer for the tandem type unmanned helicopter drives the rotor to rotate through the rotor shaft.
The beneficial effects of the utility model are that, the utility model discloses an end portion that tandem unmanned helicopter used decelerator's rotor shaft stretched into the box is provided with big bevel gear, and the tip that the transmission shaft stretched into the box is provided with little bevel gear, and the transmission shaft drives the rotor shaft rotation through the meshing of little, big bevel gear, simple structure, the equipment of being convenient for.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of a reduction gear for a tandem type unmanned helicopter according to the present invention;
FIG. 2 is an enlarged view at A in FIG. 1;
FIG. 3 is an enlarged view at B in FIG. 1;
FIG. 4 is an enlarged view at C of FIG. 1;
fig. 5 is a schematic view of an observation screw of the reduction gear for a tandem type unmanned helicopter according to the present invention.
In the figure:
the oil level measuring device comprises a box body 100, an oil filling hole 101, an oil filling screw 102, an oil drain hole 103, an oil drain screw 104, an oil level observation hole 105, an observation screw 106, a through hole 107, an upper box body 110, a lower box body 120 and an end cover 130;
a rotor shaft 200, a large bevel gear 210;
a transmission shaft 300, a bevel pinion 310;
a first bearing 410, a second bearing 420, a third bearing 430;
a first, second, and third abutment blocks 510, 520, 530;
a first shim 610, a second shim 620, and a third shim 630.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are 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
As shown in fig. 1, the present embodiment provides a reduction gear for a tandem unmanned helicopter, including: a case 100; the rotor shaft 200 is longitudinally arranged, and a large bevel gear 210 is fixed at the end part of the rotor shaft located in the box body 100; the transmission shaft 300 is transversely arranged, and a small bevel gear 310 meshed with the large bevel gear 210 is fixed at the end part of the transmission shaft in the box body 100; wherein the transmission shaft 300 is adapted to drive the rotor shaft 200 to rotate by the engagement of the small and large bevel gears.
In this embodiment, the end of the rotor shaft 200 extending into the box is provided with a large bevel gear 210, the end of the transmission shaft 300 extending into the box is provided with a small bevel gear 310, and the transmission shaft drives the rotor shaft to rotate through the engagement of the small and large bevel gears, so that the structure is simple and the assembly is convenient.
In order to lubricate and cool the gear, oil hole 101 and oil screw 102 for sealing the oil hole 101 are set on the top surface of the box 100; and an oil drain hole 103 and an oil drain screw 104 for plugging the oil drain hole 103 are arranged on the lower end surface of the box body 100.
In the present embodiment, oil can be injected into the tank 100 through the oil injection hole 101, and then the oil injection hole 101 is blocked by the oil injection screw 102; when the oil in the tank 100 needs to be discharged, the oil drain screw 104 may be opened to discharge the oil through the oil drain hole 103.
In order to facilitate observing the liquid level position of the oil in the tank 100, an oil level observation hole 105 and an observation screw 106 for plugging the oil level observation hole 105 can be further arranged on the side end surface of the tank 100; as shown in fig. 5, a through hole 107 and a blocking piece for blocking the through hole 107 are arranged in the center of the observation screw 106; the plugging piece is made of transparent materials.
In the present embodiment, the liquid level position of the oil in the case 100 can be observed by the observation screw 106; the closure may be, but is not limited to, clear plastic or clear glass.
To facilitate assembly of the components, in the present embodiment, the box 100 includes an upper box 110, a lower box 120 and an end cover 130; the rotor shaft 200 penetrates through the upper box body 110 and extends into the box body, and is rotatably connected with the upper box body 110 through a first bearing 410; the transmission shaft 300 extends into the box body through the end cover 130 and is rotatably connected with the end cover 130 through a second bearing 420; the large bevel gear 210 is rotatably connected to the lower case 120 through a third bearing 430.
As shown in fig. 2, since there is a certain error in the mechanical processing of the components, in order to compensate for the assembly gap between the components, make the components fit with each other, and improve the overall operation stability of the reduction gear, optionally, a first abutting block 510 is disposed on the part of the rotor shaft 200 located in the box; the first abutting block 510 abuts against an end surface of the first bearing 410 facing the inside of the housing via a first spacer 610.
As shown in fig. 3, optionally, a second abutting block 520 is disposed on an end surface of the small bevel gear 310 away from the large bevel gear 210; the second abutting block 520 abuts against an end surface of the second bearing 420 facing the inside of the housing via a second spacer 620.
As shown in fig. 4, optionally, a third abutting block 530 is disposed on a bottom end surface of the large bevel gear 210; the third abutting block 530 abuts against an end surface of the third bearing 430 facing the inside of the housing via a third spacer 630.
In this embodiment, because there is a certain error in machining of the components, in order to compensate for the assembly gap between the components, the first spacer 610, the second spacer 620, or the third spacer 630 may be implemented by using spacers with different thicknesses according to the needs in the debugging process, so that the small bevel gear 310 and the large bevel gear 210 may be adapted to each other, thereby preventing over-tight or over-loose matching and improving the overall performance.
Example 2
On the basis of embodiment 1, the present embodiment provides an unmanned helicopter, including: a rotor and a reduction gear for a tandem unmanned helicopter according to embodiment 1; the reduction gear for the tandem unmanned helicopter drives the rotor to rotate through the rotor shaft 200.
In summary, the reduction gear for the tandem type unmanned helicopter is simple in structure and convenient to assemble; the box body 100 is filled with oil liquid, so that the gears can be cooled and lubricated; the oil filling hole 101, the oil filling screw 102, the oil drain hole 103 and the oil drain screw 104 are convenient for oil filling and draining; the observation screw 106 facilitates observation of the oil level; the box body 100 is surrounded by the upper box body 110, the lower box body 120 and the end cover 130, and is respectively assembled with the rotor shaft 200, the large bevel gear 210 and the transmission shaft 300, so that the structure is simple, and the assembly and the disassembly are convenient; the first, second and third spacers 610, 620 and 630 are disposed to allow the small bevel gear 310 and the large bevel gear 210 to be fitted to each other, so as to prevent the tight or loose fit, thereby improving the overall performance.
The components selected for use in the present application (components not illustrated for specific structures) are all common standard components or components known to those skilled in the art, and the structure and principle thereof can be known to those skilled in the art through technical manuals or through routine experimentation.
In the description of the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (8)
1. A reduction gear for a tandem type unmanned helicopter is characterized by comprising:
a case (100);
the rotor shaft (200) is longitudinally arranged, and a large bevel gear (210) is fixed at the end part of the rotor shaft positioned in the box body (100); and
the transmission shaft (300) is transversely arranged, and a small bevel gear (310) meshed with the large bevel gear (210) is fixed at the end part of the transmission shaft positioned in the box body (100); wherein
The transmission shaft (300) is suitable for driving the rotor shaft (200) to rotate through the meshing of the small bevel gear and the large bevel gear.
2. The reduction gear for a tandem unmanned helicopter according to claim 1,
an oil filling hole (101) and an oil filling screw (102) for plugging the oil filling hole (101) are arranged on the upper end surface of the box body (100); and
an oil drain hole (103) and an oil drain screw (104) for plugging the oil drain hole (103) are arranged on the lower end face of the box body (100).
3. The reduction gear for a tandem unmanned helicopter according to claim 1,
an oil level observation hole (105) and an observation screw (106) for blocking the oil level observation hole (105) are arranged on the side end surface of the box body (100); wherein
A through hole (107) and a plugging piece for plugging the through hole (107) are arranged in the center of the observation screw (106);
the plugging piece is made of transparent materials.
4. The reduction gear for a tandem unmanned helicopter according to claim 1,
the box body (100) comprises an upper box body (110), a lower box body (120) and an end cover (130) which are surrounded;
the rotor shaft (200) penetrates through the upper box body (110) to extend into the box body, and is rotatably connected with the upper box body (110) through a first bearing (410);
the transmission shaft (300) penetrates through the end cover (130) to extend into the box body, and is rotatably connected with the end cover (130) through a second bearing (420);
the large bevel gear (210) is rotatably connected with the lower box body (120) through a third bearing (430).
5. The reduction gear for a tandem unmanned helicopter according to claim 4,
a first abutting block (510) is arranged on the part, located in the box body, of the rotor shaft (200);
the first abutting block (510) abuts against the end face of the first bearing (410) facing the interior of the case through a first gasket (610).
6. The reduction gear for a tandem unmanned helicopter according to claim 4,
a second abutting block (520) is arranged on the end face, far away from the big bevel gear (210), of the small bevel gear (310);
the second abutting block (520) abuts against the end face, facing the interior of the box body, of the second bearing (420) through a second gasket (620).
7. The reduction gear for a tandem unmanned helicopter according to claim 4,
a third butting block (530) is arranged on the bottom end face of the large bevel gear (210);
the third abutting block (530) abuts against the end face of the third bearing (430) facing the inside of the case through a third gasket (630).
8. An unmanned helicopter, comprising:
a rotor and a reduction gear for a tandem unmanned helicopter according to any one of claims 1 to 7;
the reduction gear for the tandem unmanned helicopter drives a rotor to rotate through a rotor shaft (200).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120132347.7U CN214138952U (en) | 2021-01-18 | 2021-01-18 | Tandem type is decelerator and unmanned helicopter for unmanned helicopter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120132347.7U CN214138952U (en) | 2021-01-18 | 2021-01-18 | Tandem type is decelerator and unmanned helicopter for unmanned helicopter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214138952U true CN214138952U (en) | 2021-09-07 |
Family
ID=77548351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120132347.7U Active CN214138952U (en) | 2021-01-18 | 2021-01-18 | Tandem type is decelerator and unmanned helicopter for unmanned helicopter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214138952U (en) |
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2021
- 2021-01-18 CN CN202120132347.7U patent/CN214138952U/en active Active
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