CN204489183U - Pitch joystick structure - Google Patents
Pitch joystick structure Download PDFInfo
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- CN204489183U CN204489183U CN201420805033.9U CN201420805033U CN204489183U CN 204489183 U CN204489183 U CN 204489183U CN 201420805033 U CN201420805033 U CN 201420805033U CN 204489183 U CN204489183 U CN 204489183U
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- joystick
- sliding sleeve
- pitch
- pitch joystick
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Abstract
The utility model discloses a kind of pitch joystick structure, comprise tail-rotor axle, pitch joystick, bearing assembly and servo-unit joystick, pitch joystick is arranged in tail-rotor axle; Bearing assembly is arranged between tail-rotor axle inwall and pitch joystick outer wall, and the first sliding sleeve is positioned at the front end of pitch joystick, and the second sliding sleeve is positioned at the rear end of pitch joystick, and the first sliding sleeve and the second sliding sleeve all offer the oil resevoir for self-lubricating; Servo-unit joystick is arranged at the front end of pitch joystick, with pitch joystick in the lump along the axial back and forth movement of tail-rotor axle.So, the first sliding sleeve and the second sliding sleeve is adopted to replace bearing to support, the abrasion-resistance of the first sliding sleeve and the second sliding sleeve is strong, and self-lubricating can be carried out by oil resevoir, thus when pitch joystick relative tail-rotor axle back and forth movement, the friction of motion repeatedly of the first sliding sleeve and the second sliding sleeve also there will not be undue wear or the problem such as overheated, and structure is simple, and reliability is high.
Description
Technical field
The utility model relates to tail retarder equipment technical field, especially, relates to a kind of pitch joystick structure.
Background technology
Tail subtracts pitch joystick and is divided into built-in and external, and built-in pitch joystick structure comprises pitch joystick, servo-unit joystick and tail-rotor axle, and pitch joystick is connected with servo-unit joystick, and pitch joystick is arranged in tail-rotor axle.
Supported by bearing between the pitch joystick of traditional built-in pitch joystick and tail-rotor axle, bearing needs the mode of design lubrication system or employing solid lubrication separately.But bearing is very large by the impact of dust, lubrication, easily cracks, easily there is fracture through long-term friction and cause and lose supporting role, and pitch joystick complex structure, cause reliability low.
Utility model content
The utility model provides a kind of pitch joystick structure, through long-term friction, fracture easily occurs and causes and lose supporting role, cause the technical matters that reliability is low with the block bearing solving existing pitch joystick structure.
The technical solution adopted in the utility model is as follows:
A kind of pitch joystick structure, comprising:
Tail-rotor axle;
Pitch joystick, is arranged in tail-rotor axle;
Bearing assembly, be arranged between tail-rotor axle inwall and pitch joystick outer wall, bearing assembly comprises the first sliding sleeve and the second sliding sleeve, first sliding sleeve is positioned at the front end of pitch joystick, second sliding sleeve is positioned at the rear end of pitch joystick, and the first sliding sleeve and the second sliding sleeve all offer the oil resevoir for self-lubricating;
Servo-unit joystick, is arranged at the front end of pitch joystick, with pitch joystick in the lump along the axial back and forth movement of tail-rotor axle.
Further, the first sliding sleeve is sheathed on pitch joystick front end, and the outer diameter face of the first sliding sleeve is driving surface, and the second sliding sleeve is arranged at tail-rotor axle inwall, and the aperture surface of the second sliding sleeve is driving surface.
Further, oil resevoir be opened in the first sliding sleeve outer diameter face on and the second sliding sleeve aperture surface on.
Further, pitch joystick structure also comprises coupling assembling, and coupling assembling is arranged in pitch joystick, and is positioned at pitch joystick front end, and servo-unit joystick is connected with pitch joystick by coupling assembling.
Further, coupling assembling comprises double-row angular contact bal bearing, and double-row angular contact bal bearing is arranged in pitch joystick, and coordinates with pitch joystick inwall, and double-row angular contact bal bearing is connected with servo-unit joystick.
Further, double-row angular contact bal bearing is biserial angle ceramic ball bearing.
Further, coupling assembling also comprises oscillating bearing, and servo-unit joystick is connected with double-row angular contact bal bearing by oscillating bearing, and oscillating bearing is for compensating bias during servo-unit joystick manipulation.
Further, servo-unit joystick is provided with anti-rotation fork ear towards one end of pitch joystick.
The utility model has following beneficial effect:
According to pitch joystick structure of the present utility model, bearing assembly is provided with between tail-rotor axle and pitch joystick, bearing assembly comprises the first sliding sleeve and the second sliding sleeve, first sliding sleeve is positioned at the front end of pitch joystick, second sliding sleeve is positioned at the rear end of pitch joystick, first sliding sleeve and the second sliding sleeve play a part to support tail-rotor axle and pitch joystick, and the first sliding sleeve and the second sliding sleeve all offer the oil resevoir for self-lubricating, when servo-unit joystick and pitch joystick are in the lump along the axial back and forth movement of tail-rotor axle, fluid in this oil resevoir can carry out self-lubricating to the first sliding sleeve and the second sliding sleeve.So, the first sliding sleeve and the second sliding sleeve is adopted to replace bearing to support, the abrasion-resistance of the first sliding sleeve and the second sliding sleeve is strong, and can self-lubricating, thus when pitch joystick relative tail-rotor axle back and forth movement, the friction of motion repeatedly of the first sliding sleeve and the second sliding sleeve also there will not be undue wear or the problem such as overheated, and structure is simple, and reliability is high.
Except object described above, feature and advantage, the utility model also has other object, feature and advantage.Below with reference to figure, the utility model is described in further detail.
Accompanying drawing explanation
The accompanying drawing forming a application's part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the structural representation of the pitch joystick structure of the utility model preferred embodiment.
Description of reference numerals: 10, tail-rotor axle; 20, pitch joystick; 30, bearing assembly; 310, the first sliding sleeve; 320, the second sliding sleeve; 40, servo-unit joystick; 410, anti-rotation fork ear; 50, coupling assembling; 510, double-row angular contact bal bearing; 520, oscillating bearing.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
With reference to Fig. 1, preferred embodiment of the present utility model provides a kind of pitch joystick structure, and pitch joystick structure comprises tail-rotor axle 10, pitch joystick 20, bearing assembly 30 and servo-unit joystick 40.Pitch joystick 20 is arranged in tail-rotor axle 10, and servo-unit joystick 40 is arranged at the front end of pitch joystick 20, and with pitch joystick 20 in the lump along the axial back and forth movement of tail-rotor axle 10.Bearing assembly 30 is arranged between tail-rotor axle 10 inwall and pitch joystick 20 outer wall, bearing assembly 30 comprises the first sliding sleeve 310 and the second sliding sleeve 320, first sliding sleeve 310 is positioned at the front end of pitch joystick 20, second sliding sleeve 320 is positioned at the rear end of pitch joystick 20, first sliding sleeve 310 and the second sliding sleeve 320 all offer the oil resevoir for self-lubricating, and the fluid in this oil resevoir can carry out self-lubricating to the first sliding sleeve 310 and the second sliding sleeve 320.In specific embodiment as shown in Figure 1, the right side in diagram is the front end of slurry apart from joystick 20, and the left side in diagram is the rear end of slurry apart from joystick 20.So, the first sliding sleeve 310 and the second sliding sleeve 320 is adopted to replace bearing to support, the abrasion-resistance of the first sliding sleeve 310 and the second sliding sleeve 320 is strong, and can self-lubricating, thus when relative tail-rotor axle 10 back and forth movement of pitch joystick 20, the friction of motion repeatedly of the first sliding sleeve 310 and the second sliding sleeve 320 also there will not be undue wear or the problem such as overheated, and structure is simple, and reliability is high.
With reference to Fig. 1, in the preferred embodiment, alternatively, the first sliding sleeve 310 is sheathed on pitch joystick 20 front end, and the outer diameter face of the first sliding sleeve 310 is driving surface, and the second sliding sleeve 320 is arranged at tail-rotor axle 10 inwall, and the aperture surface of the second sliding sleeve 320 is driving surface.So, when pitch joystick 20 is along tail-rotor axle 10 axial back and forth movement, the first sliding sleeve 310 back and forth movement together can be driven, thus the outer diameter face of the first sliding sleeve 310 can rub back and forth with tail-rotor axle 10 inwall, second sliding sleeve 320 is fixed on tail-rotor axle 10, thus the aperture surface of the second sliding sleeve 320 can rub back and forth with pitch joystick 20 outer wall, realize the supporting role to pitch joystick 20 and tail-rotor axle 10.Alternatively, this oil resevoir is opened in the outer diameter face of the first sliding sleeve 310 and the aperture surface of the second sliding sleeve 320, that is the driving surface that the first sliding sleeve 310 and the second sliding sleeve 320 need rub repeatedly offers oil resevoir, fluid directly acts on driving surface, the lubricant effect of effective guarantee first sliding sleeve 310 and the second sliding sleeve 320, thus avoid the friction repeatedly of the first sliding sleeve 310 and the second sliding sleeve 320 to occur undue wear or the problem such as overheated, reliability is high.Particularly, for improving the in-use performance of the first sliding sleeve 310 and the second sliding sleeve 320, the first sliding sleeve 310 and the second sliding sleeve 320 all can adopt PM technique to obtain, and through oil immersion.
With reference to Fig. 1, in the preferred embodiment, alternatively, pitch joystick structure also comprises coupling assembling 50, coupling assembling 50 is arranged in pitch joystick 20, and is positioned at pitch joystick 20 front end, and servo-unit joystick 40 is connected with pitch joystick 20 by coupling assembling 50.Servo-unit joystick 40 and pitch joystick 20 are supported by coupling assembling 50, thus realize servo-unit joystick 40 with pitch joystick 20 in the lump along the object of the axial back and forth movement of tail-rotor axle 10.Alternatively, coupling assembling 50 comprises double-row angular contact bal bearing 510, and double-row angular contact bal bearing 510 is arranged in pitch joystick 20, and coordinates with pitch joystick 20 inwall, and double-row angular contact bal bearing 510 is connected with servo-unit joystick 40.Double-row angular contact bal bearing 510 plays supporting servo-unit joystick 40 and pitch joystick 20.Wherein, double-row angular contact bal bearing 510 can bear Radial load and act on the axial load of both direction, can bear capsizing moment, double-row angular contact bal bearing 510 is the ripe parts in bearing apparatus technical field, and its structure and principle of work do not repeat them here.Alternatively, for improving the in-use performance of double-row angular contact bal bearing 510, double-row angular contact bal bearing 510 can select biserial angle ceramic ball bearing.
With reference to Fig. 1, in the preferred embodiment, alternatively, coupling assembling 50 also comprises oscillating bearing 520, servo-unit joystick 40 is connected with double-row angular contact bal bearing 510 by oscillating bearing 520, and oscillating bearing 520 is for compensating bias when servo-unit joystick 40 is handled.So, the setting of oscillating bearing 520, plays Self-aligning, when servo-unit joystick 40 oar handling is apart from joystick 20 along tail-rotor axle 10 axial back and forth movement, oscillating bearing 520 can compensate bias when servo-unit joystick 40 is handled, and avoids producing additional bending moment, and reliability is high.Wherein, oscillating bearing 520 is the ripe parts in bearing apparatus technical field, and its structure and principle of work do not repeat them here.
With reference to Fig. 1, in the preferred embodiment, alternatively, servo-unit joystick 40 is provided with anti-rotation fork ear 410 towards one end of pitch joystick 20.Effective guarantee servo-unit joystick 40 only carries out round maneuvering motion in the axis of tail-rotor axle 10, prevents servo-unit joystick 40 from rotating, and structure is simple, and anti-rotation is effective, and reliability is high.
As can be seen from the above description, the utility model the above embodiments achieve following technique effect:
According to pitch joystick structure of the present utility model, bearing assembly 30 is provided with between tail-rotor axle 10 and pitch joystick 20, bearing assembly 30 comprises the first sliding sleeve 310 and the second sliding sleeve 320, first sliding sleeve 310 is positioned at the front end of pitch joystick 20, second sliding sleeve 320 is positioned at the rear end of pitch joystick 20, first sliding sleeve 310 and the second sliding sleeve 320 play a part to support tail-rotor axle 10 and pitch joystick 20, and the first sliding sleeve 310 and the second sliding sleeve 320 all offer the oil resevoir for self-lubricating, when servo-unit joystick 40 and pitch joystick 20 are in the lump along the axial back and forth movement of tail-rotor axle 10, fluid in this oil resevoir can carry out self-lubricating to the first sliding sleeve 310 and the second sliding sleeve 320.So, the first sliding sleeve 310 and the second sliding sleeve 320 is adopted to replace bearing to support, the abrasion-resistance of the first sliding sleeve 310 and the second sliding sleeve 320 is strong, and can self-lubricating, thus when relative tail-rotor axle 10 back and forth movement of pitch joystick 20, the friction of motion repeatedly of the first sliding sleeve 310 and the second sliding sleeve 320 also there will not be undue wear or the problem such as overheated, and structure is simple, and reliability is high.
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 done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (8)
1. a pitch joystick structure, is characterized in that, comprising:
Tail-rotor axle (10);
Pitch joystick (20), is arranged in described tail-rotor axle (10);
Bearing assembly (30), be arranged between described tail-rotor axle (10) inwall and described pitch joystick (20) outer wall, described bearing assembly (30) comprises the first sliding sleeve (310) and the second sliding sleeve (320), described first sliding sleeve (310) is positioned at the front end of described pitch joystick (20), described second sliding sleeve (320) is positioned at the rear end of described pitch joystick (20), and described first sliding sleeve (310) and described second sliding sleeve (320) all offer the oil resevoir for self-lubricating;
Servo-unit joystick (40), is arranged at the front end of described pitch joystick (20), with described pitch joystick (20) in the lump along the axial back and forth movement of described tail-rotor axle (10).
2. pitch joystick structure according to claim 1, is characterized in that,
Described first sliding sleeve (310) is sheathed on described pitch joystick (20) front end, the outer diameter face of described first sliding sleeve (310) is driving surface, described second sliding sleeve (320) is arranged at described tail-rotor axle (10) inwall, and the aperture surface of described second sliding sleeve (320) is driving surface.
3. pitch joystick structure according to claim 2, is characterized in that,
In the outer diameter face that described oil resevoir is opened in described first sliding sleeve (310) and on the aperture surface of described second sliding sleeve (320).
4. pitch joystick structure according to claim 1, is characterized in that,
Described pitch joystick (20) structure also comprises coupling assembling (50), described coupling assembling (50) is arranged in described pitch joystick (20), and being positioned at described pitch joystick (20) front end, described servo-unit joystick (40) is connected with described pitch joystick (20) by described coupling assembling (50).
5. pitch joystick structure according to claim 4, is characterized in that,
Described coupling assembling (50) comprises double-row angular contact bal bearing (510), described double-row angular contact bal bearing (510) is arranged in described pitch joystick (20), and coordinate with described pitch joystick (20) inwall, described double-row angular contact bal bearing (510) is connected with described servo-unit joystick (40).
6. pitch joystick structure according to claim 5, is characterized in that,
Described double-row angular contact bal bearing (510) is biserial angle ceramic ball bearing.
7. pitch joystick structure according to claim 5, is characterized in that,
Described coupling assembling (50) also comprises oscillating bearing (520), described servo-unit joystick (40) is connected with described double-row angular contact bal bearing (510) by described oscillating bearing (520), and described oscillating bearing (520) is for compensating bias when described servo-unit joystick (40) is handled.
8. the pitch joystick structure according to claim 1 to 7 any one, is characterized in that,
Described servo-unit joystick (40) is provided with anti-rotation fork ear (410) towards one end of described pitch joystick (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420805033.9U CN204489183U (en) | 2014-12-17 | 2014-12-17 | Pitch joystick structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420805033.9U CN204489183U (en) | 2014-12-17 | 2014-12-17 | Pitch joystick structure |
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| Publication Number | Publication Date |
|---|---|
| CN204489183U true CN204489183U (en) | 2015-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420805033.9U Active CN204489183U (en) | 2014-12-17 | 2014-12-17 | Pitch joystick structure |
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| CN (1) | CN204489183U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107792355A (en) * | 2017-10-24 | 2018-03-13 | 深圳天鹰兄弟无人机创新有限公司 | A kind of plant protection unmanned plane primary fuselage of dustproof and waterproof |
| CN108058813A (en) * | 2017-12-01 | 2018-05-22 | 中国直升机设计研究所 | A kind of helicopter tail rotor flight control load compensation method |
| CN108116674A (en) * | 2016-11-30 | 2018-06-05 | 空客直升机 | Control member, rotor craft and method |
-
2014
- 2014-12-17 CN CN201420805033.9U patent/CN204489183U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108116674A (en) * | 2016-11-30 | 2018-06-05 | 空客直升机 | Control member, rotor craft and method |
| CN108116674B (en) * | 2016-11-30 | 2020-12-29 | 空客直升机 | Control member, rotorcraft and method |
| CN107792355A (en) * | 2017-10-24 | 2018-03-13 | 深圳天鹰兄弟无人机创新有限公司 | A kind of plant protection unmanned plane primary fuselage of dustproof and waterproof |
| CN107792355B (en) * | 2017-10-24 | 2023-09-22 | 深圳天鹰兄弟无人机创新有限公司 | Dustproof and waterproof's plant protection unmanned aerial vehicle owner fuselage structure |
| CN108058813A (en) * | 2017-12-01 | 2018-05-22 | 中国直升机设计研究所 | A kind of helicopter tail rotor flight control load compensation method |
| CN108058813B (en) * | 2017-12-01 | 2021-02-26 | 中国直升机设计研究所 | Helicopter tail rotor flight control load compensation method |
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