CN203756863U - Speed reducer for aero car - Google Patents
Speed reducer for aero car Download PDFInfo
- Publication number
- CN203756863U CN203756863U CN201320744581.0U CN201320744581U CN203756863U CN 203756863 U CN203756863 U CN 203756863U CN 201320744581 U CN201320744581 U CN 201320744581U CN 203756863 U CN203756863 U CN 203756863U
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- CN
- China
- Prior art keywords
- bearing
- tapered roller
- bevel gear
- hovercar
- roller bearing
- 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.)
- Expired - Fee Related
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- General Details Of Gearings (AREA)
Abstract
The utility model discloses a speed reducer for an aero car. The speed reducer comprises a lower shell, an upper shell, a driving bevel gear, a driven transmission shaft, a driven bevel gear and a supporting structure, wherein the driving bevel gear is horizontally mounted on the lower shell; the driven transmission shaft and the driven bevel gear are vertically mounted on the upper shell; the supporting structure comprises a first tapered roller bearing, a second tapered roller bearing and an aligning bearing; the first tapered roller bearing and the second tapered roller bearing are used for supporting the driven bevel gear; the aligning bearing is used for supporting the driven transmission shaft at the upper end of the driven transmission shaft. The supporting structure of the transmission part in the speed reducer for the aero car according to the utility model is reasonable in design, so that the reducing of the weight of the shell of the speed reducer is benefited.
Description
Technical field
The utility model relates to a kind of hovercar retarder.
Background technique
Hovercar is a kind of new ideas traffic tool, in the good situation of road conditions, travels on road surface as automobile, in the time running into obstacle, can temporarily leap obstacle.
Chinese invention patent application CN103303083 discloses a kind of hovercar, and it provides power by gas turbine, and lift fan and rear lift fan provide machine power forward respectively, and lift fan provides lift in the time rotating, to realize lift-off flight function.Wherein, the transmission shaft of lift fan is vertically arranged, is provided with retarder before lift fan, with the vertical transmission shaft to lift fan by the transmission of power of the horizontal transmission axle of gas turbine.
For above-mentioned hovercar retarder, it works the in the situation that of higher rotation speed and higher load, not only needs higher safety and stability, and requires quality to reduce as far as possible, and this has brought challenge to design work.
Model utility content
The purpose of this utility model is to provide a kind of hovercar retarder, to make supporting structure rationally on the basis that meets performance requirement and to prevent location.
For this reason, the utility model provides a kind of hovercar retarder, retarder comprises lower shell body, upper shell, is flatly installed on the drive bevel gear of lower shell body, is installed on the passive transmission shaft of upper shell and by dynamic bevel gear and supporting structure vertically, wherein, supporting structure comprises and supports by the first tapered roller bearing of dynamic bevel gear and the second tapered roller bearing and support the selfaligning bearing of passive transmission shaft in the upper end of passive transmission shaft.
Further, above-mentioned supporting structure is also included in clutch shaft bearing and second bearing of the gear axial region that supports drive bevel gear in lower shell body, wherein, clutch shaft bearing and the second bearing are arranged in same bearing support spaced reciprocally, and bearing support has the flange of axially locating to the end face of lower shell body.
Further, between above-mentioned clutch shaft bearing and/or the second bearing and bearing support, be provided with spacer.
Further, above-mentioned clutch shaft bearing and the second bearing are respectively angular contact ball bearing.
Further, above-mentioned the first tapered roller bearing is supported on the supporting base being arranged on upper shell, and the second tapered roller bearing is supported on the bearing support that is arranged in lower shell body.
Further, the above-mentioned axial region that is connected of pegging graft with passive transmission shaft that comprised by dynamic bevel gear, the first tapered roller bearing is socketed in and is connected on axial region with the second tapered roller bearing.
Further, the external diameter of above-mentioned the first tapered roller bearing is greater than the external diameter of the second tapered roller bearing.
According to hovercar retarder of the present utility model, supported by the first tapered roller bearing and the second tapered roller bearing by dynamic bevel gear, passive transmission shaft is supported by selfaligning bearing, so supporting structure is rationally compact, contribute to reduce the quality of reducer shell, and can prevent that passive transmission shaft from supporting location.
Except object described above, feature and advantage, other object, feature and the advantage that the utlity model has, be described in further detail in connection with accompanying drawing.
Brief description of the drawings
Form the part of this specification, show preferred embodiment of the present utility model for further understanding accompanying drawing of the present utility model, and be used for illustrating principle of the present utility model together with specification.In figure:
Fig. 1 is according to the structural representation of hovercar of the present utility model retarder;
Fig. 2 is according to the structural representation of the lower shell body of hovercar of the present utility model retarder;
Fig. 3 is according to the schematic perspective view of the lower shell body of hovercar of the present utility model retarder;
Fig. 4 is according to the structural representation of the drive bevel gear of hovercar of the present utility model retarder;
Fig. 5 is according to the end view of the drive bevel gear of hovercar of the present utility model retarder;
Fig. 6 is according to the structural representation of the passive transmission shaft of hovercar of the present utility model retarder; And
Fig. 7 be according to hovercar of the present utility model retarder by the structural representation of dynamic bevel gear.
Description of reference numerals
10, lower shell body; 11, coupling;
111, axial region; 12, drive bevel gear;
13, the first angular contact ball bearing; 14, the second angular contact ball bearing;
15, tubular bearing support; 15a, blocked part;
15b, oil guiding hole; 15c, flange;
16, the first end cap; 17, the first spacer;
18, spacer; 19, the first leather cup;
20, upper shell; 21, passive transmission shaft;
22, selfaligning bearing; 23, clutch shaft bearing seat;
24, the first tapered roller bearing; 25, the second bearing support;
26, by dynamic bevel gear; 27, the second tapered roller bearing;
28, the 3rd bearing support; 29, breather;
31, the second spacer; 32, the second end cap;
33, the second leather cup; 34, cover plate;
35, blanking cover; 36, sleeve;
101, the first cavity; 102, the second cavity;
103, the 3rd cavity; 104, cross wall;
105, perpendicular next door; 106, handle hole;
107, oilhole; 108, oil guide slot;
121, gear head; 122, gear axial region;
123, center hole; 124, blanking cover assembly department;
151, blocked part; 152, oil guiding hole;
153, flange; 261, gear part;
262, connect axial region; 263, spline;
21a, primary importance; 21b, the second place;
211, axis body; 212, center hole;
213, adpting flange; 214, spline.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
Hovercar of the present utility model is worked higher rotation speed and the higher load in the situation that with retarder, and total quality is less simultaneously.
Fig. 1 is according to the structural representation of hovercar of the present utility model retarder.As shown in Figure 1, retarder comprises lower shell body 10 and upper shell 20, and wherein, lower shell body 10 is for horizontal support drive bevel gear 12, and upper shell 20 is for vertically supporting passive transmission shaft 21.
Wherein, at the input end of retarder, coupling 11 is connected with external means, coupling 11 by spline by transmission of power the gear shaft to drive bevel gear 12, the conversion that power is realized rotating speed and turned to by the Gleason spiral bevel gear of a pair of preset deceleration ratio, power, again through passive transmission shaft 21, passes to outside lift fan by the adpting flange 213 on passive transmission shaft 21.
Fig. 2 is according to the structural representation of the lower shell body of hovercar of the present utility model retarder, Fig. 3 is according to the schematic perspective view of the lower shell body of hovercar of the present utility model retarder, as shown in Figures 2 and 3, lower shell body 10 comprises the first cavity 101, the second cavity 102 and the 3rd cavity 103, wherein, the second cavity 102 and the 3rd cavity 103 are arranged apart up and down, the second cavity 102 is for putting by dynamic bevel gear 26, the 3rd cavity 103 is the uncovered cavity in lower end, the first cavity 101 and the state of the 3rd cavity 103 bodies in separating completely.
Cross wall 104 between the second cavity 102 and the 3rd cavity 103 is provided with and offers handle hole 106, and this handle hole 106 is in the face of the lower end of passive transmission shaft 21, to operate the parts that connect on passive transmission shaft 21 and lower end thereof.This handle hole 106 is sealed by cover plate 34.Perpendicular next door 105 between the first cavity 101 and the second cavity 102 is provided with the oilhole 107 that is communicated with the two.
Fig. 4 is that Fig. 5 is the end view of drive bevel gear shown in Fig. 4 according to the structural representation of the drive bevel gear of hovercar of the present utility model retarder.As shown in Figure 4 and Figure 5, drive bevel gear 12 part that is formed in one, comprise gear head 121 and gear axial region 122, have and prolong the center hole 123 that axis direction runs through extension, on the hole wall of the center hole 123 of the end position of gear axial region 122, form blanking cover assembly department 124, wherein, blanking cover 35 (as shown in Figure 1) is arranged on this blanking cover assembly department 124 so that lubricating oil shutoff is realized in one end of center hole 123.
In conjunction with reference to Fig. 1 and Fig. 4, the gear axial region 122 of drive bevel gear 12 is that the angular contact ball bearing that form is installed back-to-back supports by a pair of mounting structure, i.e. the first angular contact ball bearing 13 and the second angular contact ball bearing 14.Wherein, the two is set in the inner ring of the inner ring of the first angular contact ball bearing 13 and the second angular contact ball bearing 14 on gear axial region 122, and between the two, be provided with sleeve 36 to realize axially spaced-apart setting, the medial extremity of the second angular contact ball bearing 14 is located by gear head 121, the outboard end of the first angular contact ball bearing 13 passes through axial region 111 butts of coupling 11, thereby realizes the axial restraint of the first angular contact ball bearing 13.
The end portion of the gear axial region 122 of drive bevel gear 12 forms thread section, with mounting nuts, and axial region 111 and gear axial region 122 spline joints of coupling 11, and carry out axial restraint by nut.This structure is easy for installation, and number of components is few, connects reliable between each parts.
The first angular contact ball bearing 13 and the second angular contact ball bearing 14 share a tubular bearing support 15, this first angular contact ball bearing 13 and the second angular contact ball bearing 14 are arranged in the cylinder chamber of tubular bearing support 15, on the inner tube wall of this tubular bearing support 15, form blocked part 151, with the outer ring of backstop the first angular contact ball bearing 13 and the second angular contact ball bearing 14.Further, the end of this tubular bearing support 15 is provided with flange 153, with axially locating on the right side of lower shell body 10.So, the first cavity 101 designs simplifications of lower shell body 10, process step reduces, and more meets lighting requirement.Between the first angular contact ball bearing 13 and/or the second angular contact ball bearing 14 and blocked part 151, be provided with spacer 18, thereby avoided the axial location of crossing of the first angular contact ball bearing 13 and the second angular contact ball bearing 14.
Between the chamber wall of the first cavity 101, be provided with oil guide slot 108, tubular bearing support 15 is provided with oil guiding hole 152, this oil guiding hole 152 is communicated with the enclosed space (space and between the first end cap 16) of oil guide slot 108 and the first angular contact ball bearing 13 ends, to supply lubricating oil/fat to the first angular contact ball bearing 13.
Fig. 6 is according to the structural representation of the passive transmission shaft of hovercar of the present utility model retarder, as shown in Figure 5, passive transmission shaft 21 is hollow shaft, and be upper coarse and lower fine structure, lower end by spline 214 be connected by dynamic bevel gear 26, this structure is convenient by the installation of dynamic bevel gear 26.
The upper end of upper shell 20 is provided with clutch shaft bearing seat 23, and lower end is provided with the second bearing support 25, and clutch shaft bearing seat 23 is upward uncovered, and the second bearing support 25 is down uncovered, and passive transmission shaft 21 is medially arranged in upper shell, and upper shell 20 is stretched out in its lower end.
Fig. 7 be according to hovercar of the present utility model retarder by the structural representation of dynamic bevel gear.As shown in Figure 7, there is gear part 261 and be connected axial region 262 by dynamic bevel gear 26, this connection axial region 262 is connected by spline 263 with passive transmission shaft 21, wherein, supported by the first tapered roller bearing 24 and the second tapered roller bearing 27 by dynamic bevel gear 26, this first tapered roller bearing 24 is set in the second tapered roller bearing 27 both sides up and down that are connected on axial region 262 and are positioned at gear part 261.In this supporting structure, the first tapered roller bearing 24 is main load parts, and the close together of the first tapered roller bearing 24 and the second tapered roller bearing, this has very great help to reducing the stressed of bearing, under concrete application conditions, this structure allows the quality of structural member in retarder to reduce as far as possible.
Wherein, the first tapered roller bearing 24 is supported on the second bearing support 25, and the second tapered roller bearing 27 is supported on the 3rd bearing support 28, and the 3rd bearing support 28 is arranged on lower shell body 10, its open-mouth end upward, mutually to face with the open-mouth end of the second bearing support 25.This first tapered roller bearing 24 is main load parts, and its Dimensions is greater than the Dimensions of the second tapered roller bearing 27, and the external diameter of the first tapered roller bearing 24 is larger than the external diameter of the second tapered roller bearing 27.
The upper end of passive transmission shaft 21 is supported by selfaligning bearing 22, and this selfaligning bearing 22 is arranged on clutch shaft bearing seat 23, can avoid the axial location of crossing of passive transmission shaft 21.
Passive transmission shaft 21 is multidiameter shaft, comprise stair-stepping axis body 211 and center hole 212, and its center hole 212 is shoulder hole, the two cooperatively interacts axis body 211 and center hole 212, make the wall thickness of load part be greater than the wall thickness of remaining part, to reduce material weight as far as possible, particularly, be greater than the wall thickness of remaining part by the primary importance 21a at the selfaligning bearing place of dynamic bevel gear and the wall thickness of second place 21b that is connected axial region place.
The first end cap 16 of lower shell body 10 is provided with the first leather cup 19, to prevent that lubricant oil from overflowing, on the second end cap 32 of upper shell 20, is provided with the second leather cup 33, to prevent that lubricant oil from overflowing.
Between the flange 153 of tubular bearing support 15 and the right side of lower shell body 10, be provided with the first spacer 17, to regulate drive bevel gear 12 and by the back lash of dynamic bevel gear 26 along continuous straight runs between the two.Upper shell 20 and lower shell body 10 junction plane between the two is provided with the second spacer 31, to regulate drive bevel gear 12 and by dynamic bevel gear 26 back lash vertically.
In conjunction with reference to shown in Fig. 1, passive transmission shaft 21 is medially arranged in upper shell 20, forms annular lubricating oil space, with the enough lubricating oil of enough storages between passive transmission shaft 21 and the shell wall of upper shell 20.The sidewall of upper shell 20 is provided with breather 29, with the pressure of balanced reducer internal and external parts.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (7)
1. a hovercar retarder, it is characterized in that, described retarder comprises lower shell body, upper shell, is flatly installed on the drive bevel gear of described lower shell body, is installed on the passive transmission shaft of described upper shell and by dynamic bevel gear and supporting structure vertically, wherein, described supporting structure comprise support described by the first tapered roller bearing of dynamic bevel gear and the second tapered roller bearing and support the selfaligning bearing of described passive transmission shaft in the upper end of described passive transmission shaft.
2. hovercar retarder according to claim 1, it is characterized in that, described supporting structure is also included in clutch shaft bearing and second bearing of the gear axial region that supports described drive bevel gear in described lower shell body, wherein, described clutch shaft bearing and the second bearing are arranged in same bearing support spaced reciprocally, and described bearing support has the flange of axially locating to the end face of lower shell body.
3. hovercar retarder according to claim 2, is characterized in that, between described clutch shaft bearing and/or the second bearing and described bearing support, is provided with spacer.
4. hovercar retarder according to claim 2, is characterized in that, described clutch shaft bearing and the second bearing are respectively angular contact ball bearing.
5. hovercar retarder according to claim 1, is characterized in that, described the first tapered roller bearing is supported on the supporting base being arranged on upper shell, and described the second tapered roller bearing is supported on the bearing support that is arranged in lower shell body.
6. hovercar retarder according to claim 1, is characterized in that, the described axial region that is connected of pegging graft with described passive transmission shaft that comprised by dynamic bevel gear, and described the first tapered roller bearing and the second tapered roller bearing are socketed on described connection axial region.
7. hovercar retarder according to claim 1, is characterized in that, the external diameter of described the first tapered roller bearing is greater than the external diameter of described the second tapered roller bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320744581.0U CN203756863U (en) | 2013-11-22 | 2013-11-22 | Speed reducer for aero car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320744581.0U CN203756863U (en) | 2013-11-22 | 2013-11-22 | Speed reducer for aero car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203756863U true CN203756863U (en) | 2014-08-06 |
Family
ID=51252143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320744581.0U Expired - Fee Related CN203756863U (en) | 2013-11-22 | 2013-11-22 | Speed reducer for aero car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203756863U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105508510A (en) * | 2015-12-30 | 2016-04-20 | 江苏中能电力设备有限公司 | Bevel gear orthogonal transmission mechanism |
| CN114718991A (en) * | 2022-03-25 | 2022-07-08 | 中国航发哈尔滨东安发动机有限公司 | Rotating speed and steering conversion device |
-
2013
- 2013-11-22 CN CN201320744581.0U patent/CN203756863U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105508510A (en) * | 2015-12-30 | 2016-04-20 | 江苏中能电力设备有限公司 | Bevel gear orthogonal transmission mechanism |
| CN114718991A (en) * | 2022-03-25 | 2022-07-08 | 中国航发哈尔滨东安发动机有限公司 | Rotating speed and steering conversion device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 412002 Dong Jiaduan, Zhuzhou, Hunan Patentee after: China Hangfa South Industrial Co. Ltd. Address before: 412002 Dong Jiaduan, Zhuzhou, Hunan Patentee before: China Southern Airlines Industry (Group) Co., Ltd. |
|
| 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: 20140806 Termination date: 20201122 |