CN107044301B - Locking device for propeller beta tube - Google Patents
Locking device for propeller beta tube Download PDFInfo
- Publication number
- CN107044301B CN107044301B CN201611148424.8A CN201611148424A CN107044301B CN 107044301 B CN107044301 B CN 107044301B CN 201611148424 A CN201611148424 A CN 201611148424A CN 107044301 B CN107044301 B CN 107044301B
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- CN
- China
- Prior art keywords
- beta tube
- locking device
- outer side
- propeller
- sleeve
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- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/30—Fixing blades to rotors; Blade roots ; Blade spacers
- F01D5/32—Locking, e.g. by final locking blades or keys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
- B64C11/30—Blade pitch-changing mechanisms
- B64C11/38—Blade pitch-changing mechanisms fluid, e.g. hydraulic
Abstract
The invention provides a locking device for a propeller beta tube, which comprises a beta tube, a shifting sleeve and a gear sleeve retainer ring. A first bulge is arranged on the circumferential outer side of the beta tube; the shifting sleeve is sleeved on the circumferential outer side of the beta tube, a first groove matched with the first bulge is formed in the circumferential inner side of the shifting sleeve, and a second groove is formed in the circumferential outer side of the shifting sleeve; and one end of the gear sleeve clamping ring is abutted to the circumferential outer side of the beta tube, and a second protrusion matched with the second groove is arranged on the circumferential inner side of the other end of the gear sleeve clamping ring. The locking device enables the beta tube and the shifting sleeve to be clamped and fixed together, so that the beta tube and the shifting sleeve realize variable-pitch operation of a small-pitch oil way and a large-pitch oil way along with operation of the mechanical hydraulic variable-pitch executing mechanism.
Description
Technical Field
The invention relates to the technical field of propeller pitch changing, in particular to a locking device for a propeller beta tube.
Background
The variable pitch device of the propeller controls the propeller to work under the state of the optimal blade angle under various working states of an engine and an airplane so as to achieve the optimal working efficiency of the propeller. For an automatic variable pitch propeller, the blade angle is required to change with the changes of factors such as engine power, flying height, speed, attitude and ambient temperature, etc., so as to maintain the rotating speed of the propeller constant (high point of aerodynamic efficiency). The pitch control device of the propeller comprises an adjusting control mechanism and a pitch control executing mechanism. The variable pitch actuating mechanism mainly has the function of converting the reciprocating motion of the piston in the linear direction into the swing of the blades, so that the propeller reaches the balance rotating speed.
The shell tower tube is a variable pitch oil path of the propeller, a small pitch oil path is arranged between an outer tube and an inner tube of the shell tower tube, the small pitch oil path is communicated with a hole which is radially distributed at the front end of the outer tube through a hole which is radially uniformly distributed at the front end of the outer tube and a hole which is radially distributed at the front end of the shifting sleeve and is finally communicated with the small pitch oil chamber, and an inner hole of the inner tube of the shell tower tube is a large pitch oil path and is communicated with the large pitch oil chamber of the propeller through the front end of a through hole at the axle center of the shifting sleeve. The beta tube assembly moves back and forth along with the shifting sleeve assembly to complete the pitch changing of the propeller, so that the beta tube assembly and the shifting sleeve assembly are required to be connected in a relatively static state.
The existing locking structure is complex and complex to operate, and under the pitch-changing operation of the mechanical hydraulic pitch-changing actuating mechanism, the stability is poor, and the pitch-changing flexibility of the propeller is reduced.
Disclosure of Invention
In view of this, the invention aims to provide a locking device for a propeller beta tube, which has the advantages of simple overall structure, convenience and rapidness in operation and high operation stability.
In order to achieve the purpose, the technical solution of the invention is as follows: a locking device for a propeller beta tube, comprising: the peripheral outer side of the beta tube is provided with a first bulge; the dial sleeve is sleeved on the circumferential outer side of the beta tube, a first groove matched with the first bulge is formed in the circumferential inner side of the dial sleeve, and a second groove is formed in the circumferential outer side of the dial sleeve; and one end of the gear sleeve clamping ring is abutted to the circumferential outer side of the beta tube, and a second protrusion matched with the second groove is arranged on the circumferential inner side of the other end of the gear sleeve clamping ring.
Further preferably, the second protrusions are teeth uniformly arranged at intervals along the circumferential inner side of the set gear collar.
Further preferably, the tooth portion includes a plurality of teeth, and an end surface of each of the teeth is trapezoidal in shape.
Further preferentially, the first spring seat is arranged on one side, close to the butt beta tube, of the second protrusion on the sleeve gear clamping ring, the second spring seat is arranged on the other side of the second protrusion, and a third spring seat which is opposite to the second spring seat is fixedly connected to one end, far away from the sleeve gear clamping ring, of the circumferential outer side of the shifting sleeve.
Further preferably, a spring is between the second spring seat and the third spring seat.
Further preferentially, the end part of the circumferential outer side of the shifting sleeve is further provided with an arc-shaped groove opposite to the first spring seat, and the arc-shaped groove is close to the second groove.
Further preferentially, a clamp spring is arranged between the arc-shaped groove and the first spring seat.
Further preferentially, the circumferential outer side of the beta tube is provided with a first oil port, and the circumferential outer side of the shifting sleeve is provided with a second oil port communicated with the first oil port.
According to the locking device for the propeller beta tube, the beta tube and the shifting sleeve are clamped and fixed in the circumferential direction due to the arrangement of the first protrusion and the first groove; and the second protrusion and the second groove are used for realizing clamping fixation of the shifting sleeve and the gear sleeve clamping ring in the circumferential direction, so that the locking device is used for fixing the beta tube and the shifting sleeve in a clamping manner, and further realizing variable-pitch operation of a small-pitch oil way and a large-pitch oil way along with the operation of a mechanical hydraulic variable-pitch actuating mechanism, the locking device is simple in integral structure, convenient to operate and high in operation stability.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic perspective view of an embodiment of the present invention.
Description of reference numerals:
100-beta tube, 110-first protrusion, 120-first oil port, 200-shifting sleeve, 210-first groove, 220-arc groove, 230-second oil port, 240-second groove, 300-set gear collar, 310-second protrusion, 320-first spring seat, 330-second spring seat, 400-third spring seat, 500-clamp spring and 600-spring.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
The embodiment relates to a locking device for a propeller beta tube, which is shown in fig. 1 and comprises a beta tube 100, a shifting sleeve 200 and a gear retainer ring 300, wherein the shifting sleeve 200 is arranged on the shell tower tube;
the circumferential outer side of the beta tube 100 is provided with a first protrusion 110; the shifting sleeve 200 is sleeved on the circumferential outer side of the beta tube, a first groove 210 matched with the first bulge 110 is arranged on the circumferential inner side of the shifting sleeve, and a second groove 240 is arranged on the circumferential outer side of the shifting sleeve; one end of the gear sleeve clamping ring 300 is abutted to the circumferential outer side of the beta tube, and the circumferential inner side of the other end of the gear sleeve clamping ring is provided with a second protrusion 310 matched with the second groove 240. Preferentially, first arch extends 360 degrees in the circumference outside of beta tube, also or the interval extends in the circumference outside of beta tube, and if first bellied central angle be 60 degrees, quantity sets up to 5, and the circumference outside of dialling the cover is followed along the circumference inboard of dialling the cover to first recess, second recess and the circumference inboard setting of second arch along the set tooth rand all are similar to first arch along the circumference outside setting of beta tube.
According to the locking device for the propeller beta tube, the beta tube and the shifting sleeve are clamped and fixed in the circumferential direction due to the arrangement of the first protrusion and the first groove; and the second protrusion and the second groove are used for realizing clamping fixation of the shifting sleeve and the gear sleeve clamping ring in the circumferential direction, so that the locking device is used for fixing the beta tube and the shifting sleeve in a clamping manner, and further realizing variable-pitch operation of a small-pitch oil way and a large-pitch oil way along with the operation of a mechanical hydraulic variable-pitch actuating mechanism, the locking device is simple in integral structure, convenient to operate and high in operation stability.
Further, the second protrusions 310 are teeth evenly arranged at intervals along the circumferential inner side of the sleeve gear collar.
Further, the tooth portion includes a plurality of teeth, and an end surface of each tooth is trapezoidal in shape.
Like this for the joint between the protruding and the second recess of second is fixed more stable, simultaneously, makes the bellied processing of second swift simple and convenient more.
Further preferentially, a first spring seat 320 is arranged on one side, close to the abutment beta tube, of the second protrusion 310 on the sleeve gear clamping ring, a second spring seat 330 is arranged on the other side of the sleeve gear clamping ring, and a third spring seat 400 arranged opposite to the second spring seat 330 is fixedly connected to one end, far away from the sleeve gear clamping ring, of the circumferential outer side of the shifting sleeve.
Further preferably, a spring is between the second spring seat and the third spring seat.
Further preferably, the end portion of the dial sleeve on the outer side in the circumferential direction is further provided with an arc-shaped groove 220 opposite to the first spring seat 320, and the arc-shaped groove 220 is disposed next to the second groove 240.
Thus, when the shifting sleeve and the beta tube are clamped and fixed to move together, the springs play a role of providing reciprocating force between the initial position and the moving position, and meanwhile, the snap springs further enable the sleeve gear clamping rings to move together with the shifting sleeve and the beta tube, so that the stability of the overall movement is improved.
Further preferably, a snap spring 500 is disposed between the arc-shaped slot 220 and the first spring seat 320.
Further, a first oil port 120 is further disposed on the circumferential outer side of the beta tube, and a second oil port 230 communicated with the first oil port is further disposed on the circumferential outer side of the shifting sleeve.
The locking device for the propeller beta tube according to the embodiment of the invention has the following working process:
the operator will dial the suit in the circumference outside of beta tube, it is fixed to realize the joint through first arch and first recess, then, with jump ring joint in the arc wall, with the one end butt of spring on third spring holder, with the one end butt of set tooth rand in the circumference outside of beta tube, the second spring holder butt of the other end on the spring, and simultaneously, the protruding joint of second is in the second recess, this locking device makes beta tube and dials the joint between the cover and fixes together, and then make beta tube and dial the cover realize the displacement operation of small-pitch oil circuit and long-pitch oil circuit along with mechanical hydraulic pressure displacement actuating mechanism's operation.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. A locking device for a propeller beta tube is characterized in that: the method comprises the following steps: the peripheral outer side of the beta tube is provided with a first bulge; the dial sleeve is sleeved on the circumferential outer side of the beta tube, a first groove matched with the first bulge is formed in the circumferential inner side of the dial sleeve, and a second groove is formed in the circumferential outer side of the dial sleeve; and one end of the gear sleeve clamping ring is abutted to the circumferential outer side of the beta tube, and a second protrusion matched with the second groove is arranged on the circumferential inner side of the other end of the gear sleeve clamping ring.
2. The locking device for a propeller beta tube according to claim 1, characterized in that: the second protrusions are tooth parts which are uniformly arranged along the inner side of the circumferential direction of the set gear retainer ring at intervals.
3. The locking device for a propeller beta tube according to claim 2, characterized in that: the tooth portion includes a plurality of teeth, and an end surface of each of the teeth is trapezoidal in shape.
4. A locking device for a propeller beta tube according to any one of claims 1-3, characterized in that: the last second arch (310) of cover tooth rand one side of being close to the butt beta tube has first spring holder, and its opposite side has the second spring holder, the one end of keeping away from the cover tooth rand in the circumference outside of dialling the cover is linked firmly the third spring holder that sets up with the second spring holder is relative.
5. The locking device for a propeller beta tube according to claim 4, characterized in that: a spring is arranged between the second spring seat and the third spring seat.
6. The locking device for a propeller beta tube according to claim 4, characterized in that: the end part of the circumferential outer side of the shifting sleeve is also provided with an arc-shaped groove opposite to the first spring seat, and the arc-shaped groove is close to the second groove.
7. The locking device for a propeller beta tube of claim 6, wherein: a clamp spring is arranged between the arc-shaped groove and the first spring seat.
8. The locking device for a propeller beta tube according to claim 1, characterized in that: the shell tower tube is characterized in that a first oil port is further formed in the circumferential outer side of the shell tower tube, and a second oil port communicated with the first oil port is further formed in the circumferential outer side of the shifting sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611148424.8A CN107044301B (en) | 2016-12-13 | 2016-12-13 | Locking device for propeller beta tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611148424.8A CN107044301B (en) | 2016-12-13 | 2016-12-13 | Locking device for propeller beta tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107044301A CN107044301A (en) | 2017-08-15 |
| CN107044301B true CN107044301B (en) | 2022-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611148424.8A Active CN107044301B (en) | 2016-12-13 | 2016-12-13 | Locking device for propeller beta tube |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108032993B (en) * | 2017-12-15 | 2024-04-09 | 惠阳航空螺旋桨有限责任公司 | Small-distance lock stop device |
| CN109823519A (en) * | 2018-12-12 | 2019-05-31 | 惠阳航空螺旋桨有限责任公司 | A kind of pitch-changing mechanism of coaxial co-axial contra rotating propeller |
| CN115783245B (en) * | 2023-01-31 | 2023-04-11 | 江苏新扬新材料股份有限公司 | Hydraulic fixed-distance stop device for airplane propeller |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB546510A (en) * | 1940-04-16 | 1942-07-16 | Walter Scott Hoover | Improvements in or relating to propeller blade supports |
| GB833470A (en) * | 1956-12-07 | 1960-04-27 | Rotol Ltd | Improvements in or relating to variable pitch airserews |
| US4650402A (en) * | 1984-03-12 | 1987-03-17 | Trw Inc. | Aircraft propeller with blade pitch adjustment for feather and reverse positions |
| US5281095A (en) * | 1990-12-20 | 1994-01-25 | Honda Giken Kogyo Kabushiki Kaisha | Variable-pitch mechanism for a propeller |
| WO2008120835A1 (en) * | 2007-03-29 | 2008-10-09 | Dsk Co., Ltd. | Oil distribution box of controllable pitch propeller system |
| CN101417700A (en) * | 2008-12-02 | 2009-04-29 | 上海诸光机械有限公司 | Gear drive type blade pitch regulating mechanism and blade pitch regulating method |
| CN103115050A (en) * | 2013-01-30 | 2013-05-22 | 万向钱潮传动轴有限公司 | Automatic locking device |
| CN203823311U (en) * | 2014-05-22 | 2014-09-10 | 赵晓凯 | Internal oil pipe joint assembly for controllable pitch propeller |
| CN203864975U (en) * | 2014-05-22 | 2014-10-08 | 赵晓凯 | Self-lubricating adjustable-pitch propeller and adjustable-pitch propeller hydraulic pressure and lubrication system thereof |
| CN104494811A (en) * | 2014-12-14 | 2015-04-08 | 惠阳航空螺旋桨有限责任公司 | Servo pitch control device for screw propeller |
| CN104554708A (en) * | 2014-12-14 | 2015-04-29 | 惠阳航空螺旋桨有限责任公司 | Variable-pitch execution mechanism of electronic pitch varying device of screw propeller |
| CN104653551A (en) * | 2013-11-25 | 2015-05-27 | 深圳市海洋王照明工程有限公司 | Connecting rod locking device |
| CN204452924U (en) * | 2014-12-14 | 2015-07-08 | 惠阳航空螺旋桨有限责任公司 | A kind of displacement actuating unit of electronics variable pitch device of screw propeller |
| CN204452923U (en) * | 2014-12-14 | 2015-07-08 | 惠阳航空螺旋桨有限责任公司 | The servo variable pitch device of screw propeller |
| CN205661649U (en) * | 2016-06-05 | 2016-10-26 | 吴敏 | Screw quick connect structure |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB918677A (en) * | 1959-02-27 | 1963-02-13 | Gen Electric Co Ltd | Improvements in or relating to releasable coupling means |
| RU2099242C1 (en) * | 1996-10-17 | 1997-12-20 | Йелстаун Корпорейшн Н.В. | Variable-pitch propeller and method of measurement of angular position of its blades |
| AU2002366704A1 (en) * | 2002-12-12 | 2004-06-30 | Corneliu Holt | Hydraulic or pneumatic machine with tilting blades |
| CN2597732Y (en) * | 2003-02-12 | 2004-01-07 | 林瑞发 | Hard pipe fixer |
| CN105090187A (en) * | 2014-05-11 | 2015-11-25 | 周静 | Cam locking mechanism of telescopic pipe |
| CN204223176U (en) * | 2014-10-27 | 2015-03-25 | 广州极飞电子科技有限公司 | The connection structure of rotor craft horn and fuselage |
| CN104494810B (en) * | 2014-12-14 | 2018-02-06 | 惠阳航空螺旋桨有限责任公司 | A kind of coaxial contrarotating Propeller variable pitch device |
| CN204399474U (en) * | 2015-01-13 | 2015-06-17 | 杭州乐卡麦尔工业设计有限公司 | Flexible power arm on unmanned aerial vehicle |
-
2016
- 2016-12-13 CN CN201611148424.8A patent/CN107044301B/en active Active
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB546510A (en) * | 1940-04-16 | 1942-07-16 | Walter Scott Hoover | Improvements in or relating to propeller blade supports |
| GB833470A (en) * | 1956-12-07 | 1960-04-27 | Rotol Ltd | Improvements in or relating to variable pitch airserews |
| US4650402A (en) * | 1984-03-12 | 1987-03-17 | Trw Inc. | Aircraft propeller with blade pitch adjustment for feather and reverse positions |
| US5281095A (en) * | 1990-12-20 | 1994-01-25 | Honda Giken Kogyo Kabushiki Kaisha | Variable-pitch mechanism for a propeller |
| WO2008120835A1 (en) * | 2007-03-29 | 2008-10-09 | Dsk Co., Ltd. | Oil distribution box of controllable pitch propeller system |
| CN101417700A (en) * | 2008-12-02 | 2009-04-29 | 上海诸光机械有限公司 | Gear drive type blade pitch regulating mechanism and blade pitch regulating method |
| CN103115050A (en) * | 2013-01-30 | 2013-05-22 | 万向钱潮传动轴有限公司 | Automatic locking device |
| CN104653551A (en) * | 2013-11-25 | 2015-05-27 | 深圳市海洋王照明工程有限公司 | Connecting rod locking device |
| CN203823311U (en) * | 2014-05-22 | 2014-09-10 | 赵晓凯 | Internal oil pipe joint assembly for controllable pitch propeller |
| CN203864975U (en) * | 2014-05-22 | 2014-10-08 | 赵晓凯 | Self-lubricating adjustable-pitch propeller and adjustable-pitch propeller hydraulic pressure and lubrication system thereof |
| CN104494811A (en) * | 2014-12-14 | 2015-04-08 | 惠阳航空螺旋桨有限责任公司 | Servo pitch control device for screw propeller |
| CN104554708A (en) * | 2014-12-14 | 2015-04-29 | 惠阳航空螺旋桨有限责任公司 | Variable-pitch execution mechanism of electronic pitch varying device of screw propeller |
| CN204452924U (en) * | 2014-12-14 | 2015-07-08 | 惠阳航空螺旋桨有限责任公司 | A kind of displacement actuating unit of electronics variable pitch device of screw propeller |
| CN204452923U (en) * | 2014-12-14 | 2015-07-08 | 惠阳航空螺旋桨有限责任公司 | The servo variable pitch device of screw propeller |
| CN205661649U (en) * | 2016-06-05 | 2016-10-26 | 吴敏 | Screw quick connect structure |
Non-Patent Citations (1)
| Title |
|---|
| 螺旋桨变距机构的设计;周欣荣等;《装备制造技术》;20080715(第7期);第72-73页 * |
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| CN107044301A (en) | 2017-08-15 |
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