CN202790338U - Reduction gear group for co-shaft helicopter - Google Patents
Reduction gear group for co-shaft helicopter Download PDFInfo
- Publication number
- CN202790338U CN202790338U CN 201220493560 CN201220493560U CN202790338U CN 202790338 U CN202790338 U CN 202790338U CN 201220493560 CN201220493560 CN 201220493560 CN 201220493560 U CN201220493560 U CN 201220493560U CN 202790338 U CN202790338 U CN 202790338U
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- Prior art keywords
- gear
- cylindrical gears
- gears
- bevel gear
- cylindrical
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Abstract
The utility model discloses a reduction gear group for a co-shaft helicopter. The reduction gear group for the co-shaft helicopter comprises a lower cylindrical gear (1), an upper cylindrical gear (2), a cylindrical reversing gear (3), an output bevel gear (4) and an input bevel gear (5). A lower wheel gear of the cylindrical gear (3) is meshed with the lower cylindrical gear (1), and the output bevel gear (4) is provided with a bevel gear part (41) and a cylindrical gear part (42). The bevel gear part (41) is meshed with the input bevel gear (5), an upper gear wheel of the cylindrical gear part (42) is meshed with the upper cylindrical gear (2), and a lower gear wheel of the cylindrical gear part (42) is meshed with an upper gear wheel of the cylindrical reversing gear (3). A method of co-shaft layout is applied in the reduction gear group for the co-shaft helicopter, so that the utilization efficiency of a motor is high.
Description
Technical field
The utility model relates to the Helicopter Technology field, more particularly, and particularly a kind of coaxal helicopter train of reduction gears.
Background technique
Retarder is automobile, train, aircraft and a lot of mechanically visual plant, and whether its quality good or not and scientific arrangement directly have influence on operation conditions and the life-span of retarder.At present, on coaxal helicopter, its 90 ° of gearboxes usually adopt the layout of three bevel gears, and one of them bevel gear is as the power input gear, two bevel gears in addition up and down coaxial layout and with the engagement of input bevel gear as output shaft.Then, because the processing cost of bevel gear is very high, thereby cause the cost of retarder so that complete machine greatly to improve.On the other hand, because the installment and debugging between the bevel gear is very complicated, the retarder Installation and Debugging that the bevel gear more than three consists of bother very much, greatly reduce efficiency of assembling.Moreover reliable not as cylindrical gears during the bevel gear operation, it is larger to wear and tear, and working life is also long not as cylindrical gears.
In sum, study the retarder that a kind of cost is lower, installation is simple, working life is long, become those skilled in the art's problem demanding prompt solution.
The model utility content
The technical problems to be solved in the utility model is for providing a kind of coaxal helicopter train of reduction gears.For solving the problems of the technologies described above, the technological scheme that the utility model provides is:
A kind of coaxal helicopter train of reduction gears, described train of reduction gears comprises lower cylindrical gears, upper cylindrical gears, cylinder tumbler gear, output bevel gear and input bevel gear, described lower cylindrical gears is arranged on the below of described upper cylindrical gears, described lower cylindrical gears and the coaxial setting of the output shaft of described upper cylindrical gears; The undergear of described cylinder tumbler gear and described lower cylindrical gears engagement, described output bevel gear wheel has conial tooth part and cylindrical gears section, described conial tooth part and the engagement of described input bevel gear, the upper gear of described cylindrical gears section and described upper cylindrical gears engagement, the undergear of described cylindrical gears section meshes with the upper gear of described cylinder tumbler gear.
Further, the described conial tooth part of described output bevel gear and described cylindrical gears section are integrated integrated members.
Further, the described conial tooth part of described output bevel gear and described cylindrical gears section are the members that fits together after minute body formed.
The beneficial effects of the utility model are:
Coaxal helicopter train of reduction gears of the present utility model adopts the mode of coaxial layout, so that the utilization ratio of motor is higher; In addition, owing to adopt the cooperation of two bevel gears and cylindrical gears, thereby reduced the cost that a bevel gear has reduced retarder widely, can improve the installation efficiency of gear train, and the reliability during operation is also higher.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is embodiment of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to the accompanying drawing that provides other accompanying drawing.
Fig. 1 is the structural representation that coaxal helicopter is used train of reduction gears among the utility model embodiment.
Fig. 2 is the structural representation of output bevel gear among the utility model embodiment.
Embodiment
Core of the present utility model is for providing a kind of coaxal helicopter train of reduction gears.
In order to make those skilled in the art understand better the technical solution of the utility model, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Present embodiment provides a kind of coaxal helicopter train of reduction gears, and referring to Fig. 1 and Fig. 2, this train of reduction gears comprises lower cylindrical gears 1, upper cylindrical gears 2, cylinder tumbler gear 3, output bevel gear 4 and input bevel gear 5.Lower cylindrical gears 1 is arranged on the below of cylindrical gears 2, lower cylindrical gears 1 and the coaxial setting of the output shaft of upper cylindrical gears 2, lower cylindrical gears 1 and upper cylindrical gears 2 are two independent gears, both are arranged on the output shaft simultaneously, but lower cylindrical gears 1 can relative movement with upper cylindrical gears 2.As other mode of execution, this time cylindrical gears 1 also can be a series of intermeshing reduction gear devices with upper cylindrical gears 2.
Preferably, the conial tooth part 41 of output bevel gear 4 and cylindrical gears section 42 are integrated integrated members.As other mode of execution, the conial tooth part 41 of output bevel gear 4 and cylindrical gears section 42 are the members that fit together after minute body formed.
More than a kind of coaxal helicopter provided by the utility model is described in detail with train of reduction gears.Used specific case herein principle of the present utility model and mode of execution are set forth, above embodiment's explanation just is used for helping to understand method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.
Claims (3)
1. coaxal helicopter train of reduction gears, it is characterized in that, described train of reduction gears comprises lower cylindrical gears (1), upper cylindrical gears (2), cylinder tumbler gear (3), output bevel gear (4) and input bevel gear (5), described lower cylindrical gears (1) is arranged on the below of described upper cylindrical gears (2), the coaxial setting of output shaft of described lower cylindrical gears (1) and described upper cylindrical gears (2);
The undergear of described cylinder tumbler gear (3) and described lower cylindrical gears (1) engagement, described output bevel gear (4) has conial tooth part (41) and cylindrical gears section (42), described conial tooth part (41) and described input bevel gear (5) engagement, the upper gear of described cylindrical gears section (42) and described upper cylindrical gears (2) engagement, the upper gear engagement of the undergear of described cylindrical gears section (42) and described cylinder tumbler gear (3).
2. coaxal helicopter train of reduction gears according to claim 1 is characterized in that, described conial tooth part (41) and the described cylindrical gears section (42) of described output bevel gear (4) are integrated integrated members.
3. coaxal helicopter train of reduction gears according to claim 1 is characterized in that, the described conial tooth part (41) of described output bevel gear (4) and described cylindrical gears section (42) are the members that fits together after minute body formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220493560 CN202790338U (en) | 2012-09-25 | 2012-09-25 | Reduction gear group for co-shaft helicopter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220493560 CN202790338U (en) | 2012-09-25 | 2012-09-25 | Reduction gear group for co-shaft helicopter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202790338U true CN202790338U (en) | 2013-03-13 |
Family
ID=47817604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220493560 Expired - Fee Related CN202790338U (en) | 2012-09-25 | 2012-09-25 | Reduction gear group for co-shaft helicopter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202790338U (en) |
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2012
- 2012-09-25 CN CN 201220493560 patent/CN202790338U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150923 Address after: 410000 Hunan province Changsha city streets nanteau NANTUO Ridge Community carton factory Patentee after: HUNAN KUTA TECHNOLOGY Co.,Ltd. Address before: 410114, Tianxin Road, Tianxin District, Hunan, Changsha, No. 114, 30 building, 5 door, 52 room Patentee before: Li Jun |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20210925 |