CN107044301A - Locking device for propeller beta pipe - Google Patents
Locking device for propeller beta pipe Download PDFInfo
- Publication number
- CN107044301A CN107044301A CN201611148424.8A CN201611148424A CN107044301A CN 107044301 A CN107044301 A CN 107044301A CN 201611148424 A CN201611148424 A CN 201611148424A CN 107044301 A CN107044301 A CN 107044301A
- Authority
- CN
- China
- Prior art keywords
- pulling sleeve
- beta pipe
- locking device
- pipe
- propeller
- 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.)
- Granted
Links
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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
- General Details Of Gearings (AREA)
Abstract
The present invention provides a kind of locking device for propeller beta pipe, including beta pipe, pulling sleeve and set tooth collar.It is raised that the outer circumferential of beta pipe is provided with first；Pulling sleeve is set on the outer circumferential of beta pipe, and the circumferential inner side of pulling sleeve is provided with the first groove being adapted with the first projection, and the outer circumferential of pulling sleeve is the second groove；And one end of set tooth collar is connected to the outer circumferential of beta pipe, the circumferential inner side for covering the other end of tooth collar is provided with the second projection being adapted with the second groove.The locking device of the invention causes beta pipe together with being connected and fixed between pulling sleeve, and then cause beta pipe with pulling sleeve as the operation of mechanical-hydraulic displacement executing agency realizes that narrow spacing oil circuit and the big displacement away from oil circuit are operated, the locking device overall structure is simple, simple operation, and operational stability is high.
Description
Technical field
The present invention relates to Propeller variable pitch technical field, more particularly to a kind of locking device for propeller beta pipe.
Background technology
The variable pitch device of propeller is that under the various working conditions of engine and aircraft, control propeller can be optimal
Worked in the state of blade angle, to reach the optimum working efficiency of propeller.For automatic pitch propeller, it is desirable to blade angle with
The factors such as engine power, flying height, speed, posture and environment temperature change and changed, to maintain revolution speed of propeller constant
（Pneumatic efficiency high point）.The variable pitch device of propeller includes adjusting control mechanism and displacement executing agency.Displacement executing agency master
Act on be by the convert reciprocating motion in piston linear direction be blade swing so that propeller reaches balancing speed.
Beta pipe is the displacement oil circuit of propeller, is narrow spacing oil circuit between the outer tube and inner tube of beta pipe, before outer tube
The hole of end radial equipartition is connected with the radially-arranged hole in the front end of pulling sleeve, and is finally communicated with narrow spacing oil pocket, beta pipe inner tube
Endoporus to be big away from oil circuit, communicated by pulling sleeve axis through-hole front end and propeller away from oil pocket greatly.Beta tube assembly follows pulling sleeve
Component moves forward and backward to complete the displacement of propeller, and this is accomplished by beta tube assembly and pulling sleeve component is connected as the shape of geo-stationary
State.
Existing locking mechanism is complicated, cumbersome, and under the displacement operation of mechanical-hydraulic displacement executing agency, it is stable
Property is poor, reduces the displacement flexibility of propeller.
The content of the invention
In view of this, the present invention is directed to propose a kind of locking device for propeller beta pipe, this is used for propeller shellfish
The locking device overall structure of tower tube is simple, simple operation, and operational stability is high.
To achieve the above object, technical solution of the invention is：A kind of locking device for propeller beta pipe,
Including：Beta pipe, the outer circumferential of the beta pipe is provided with the first projection；Pulling sleeve, the pulling sleeve is set in the beta pipe
Outer circumferential on, the circumferential inner side of the pulling sleeve is provided with the first groove being adapted with first projection, the pulling sleeve
Outer circumferential be the second groove；And set tooth collar, one end of the set tooth collar is connected to the week of the beta pipe outwards
Side, the circumferential inner side of the other end of the set tooth collar is provided with the second projection being adapted with second groove.
Further preferentially, the described second raised tooth being evenly arranged for the circumferential clear width along the set tooth collar
Portion.
Further preferentially, the teeth portion includes multiple teeth, and the end surface shape of each tooth is trapezoidal.
Further preferentially, the described second raised side is the first spring base, and the described second raised opposite side is the
Two spring bases, side of the outer circumferential away from the set tooth collar of the pulling sleeve is fixed with the 3rd spring base.
Further preferentially, it is spring between the second spring seat and the 3rd spring base.
Further preferentially, the outer circumferential of the pulling sleeve is additionally provided with deep-slotted chip breaker, and the deep-slotted chip breaker is close to described second
Groove is set.
Further preferentially, it is jump ring between second groove and first spring base.
Further preferentially, the outer circumferential of the beta pipe is additionally provided with the first hydraulic fluid port, the outer circumferential of the pulling sleeve
It is additionally provided with the second hydraulic fluid port being connected with first hydraulic fluid port.
The locking device for propeller beta pipe of the present invention, because being provided with first raised and the first groove so that shellfish
Tower tube and pulling sleeve are realized in the circumferential to be connected and fixed；And second raised and the second groove so that pulling sleeve and set tooth collar are in week
Realize and connect and fix upwards, so, the locking device causes beta pipe together with being connected and fixed between pulling sleeve, and then cause shellfish
Tower tube is with pulling sleeve as narrow spacing oil circuit and the big displacement operation away from oil circuit, the lock are realized in the operation of mechanical-hydraulic displacement executing agency
Tight device overall structure is simple, and simple operation, operational stability is high.
Brief description of the drawings
The accompanying drawing for constituting the part of the present invention is used for providing a further understanding of the present invention, schematic reality of the invention
Apply example and its illustrate to be used to explain the present invention, do not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is dimensional structure diagram of the embodiment of the present invention.
Description of reference numerals：
100- beta pipes, 110- first is raised, the hydraulic fluid ports of 120- first, 200- pulling sleeves, the grooves of 210- first, 220- deep-slotted chip breakers,
The hydraulic fluid ports of 230- second, the grooves of 240- second, 300- set tooth collars, 310- second is raised, the spring bases of 320- first, the bullets of 330- second
Spring abutment, the spring bases of 400- the 3rd, 500- jump rings, 600- springs.
Embodiment
It should be noted that in the case where not conflicting, the embodiment in the present invention and the feature in embodiment can phases
Mutually combination.
Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
The present embodiment is related to a kind of locking device for propeller beta pipe, as shown in Figure 1, according to embodiments of the present invention
A kind of locking device for propeller beta pipe, including beta pipe 100, pulling sleeve 200 and set tooth collar 300；
The outer circumferential of beta pipe 100 is provided with the first projection 110；Pulling sleeve 200 is set on the outer circumferential of beta pipe, pulling sleeve
Circumferential inner side be provided with the first groove 210 being adapted with the first projection 110, the outer circumferential of pulling sleeve is the second groove 240；
One end of set tooth collar 300 is connected to the outer circumferential of beta pipe, and the circumferential inner side for covering the other end of tooth collar is provided with and the
The second projection 310 that two grooves 240 are adapted.Preferentially, the first projection extends 360 degree of the outer circumferential of beta pipe, also or
Interval extends the outer circumferential of beta pipe, and such as the first raised central angle is 60 degree, and quantity is set to 5, and similarly first is recessed
Outer circumferential and second of circumferential inner side, second groove of the groove along pulling sleeve along pulling sleeve are raised to be set along the circumferential inner side for covering tooth collar
Put and be similar to the first raised outer circumferential setting along beta pipe.
The locking device for propeller beta pipe of the present invention, because being provided with first raised and the first groove so that shellfish
Tower tube and pulling sleeve are realized in the circumferential to be connected and fixed；And second raised and the second groove so that pulling sleeve and set tooth collar are in week
Realize and connect and fix upwards, so, the locking device causes beta pipe together with being connected and fixed between pulling sleeve, and then cause shellfish
Tower tube is with pulling sleeve as narrow spacing oil circuit and the big displacement operation away from oil circuit, the lock are realized in the operation of mechanical-hydraulic displacement executing agency
Tight device overall structure is simple, and simple operation, operational stability is high.
Further, the second projection 310 is the teeth portion being evenly arranged along the circumferential clear width of set tooth collar.
Further, teeth portion includes multiple teeth, and the end surface shape of each tooth is trapezoidal.
So so that connecting and fixing between the second projection and the second groove is more stablized, simultaneously so that the second projection
Processing is more fast and simple.
Further, the second raised side is the first spring base 320, and the second raised opposite side is second spring seat
330, side of the outer circumferential away from set tooth collar of pulling sleeve is fixed with the 3rd spring base 400.
Further, it is spring 600 between second spring seat and the 3rd spring base.
Further, the outer circumferential of pulling sleeve is additionally provided with deep-slotted chip breaker 220, and deep-slotted chip breaker is set close to the second groove.
So, connect in pulling sleeve and beta pipe clamp when being fixed together mobile, spring plays them in initial position and movement
The effect of reciprocating force is provided between position, meanwhile, jump ring further causes set tooth collar as they are moved together, to add
The stability moved integrally.
Further, it is jump ring 500 between the second groove and the first spring base.
Further, the outer circumferential of beta pipe is additionally provided with the first hydraulic fluid port 120, the outer circumferential of pulling sleeve be additionally provided with
The second hydraulic fluid port 230 that first hydraulic fluid port is connected.
Locking device for propeller beta pipe according to embodiments of the present invention, its course of work is as follows：
Pulling sleeve is set in the outer circumferential of beta pipe by operator, is connected and fixed, connect by the first raised realized with the first groove
, jump ring is connected in deep-slotted chip breaker, one end of spring is connected on the 3rd spring base, the one end for covering tooth collar is connected to
The outer circumferential of beta pipe, the second spring seat of the other end is connected on spring, meanwhile, the second projection is connected in the second groove
Interior, the locking device causes beta pipe together with being connected and fixed between pulling sleeve, and then causes beta pipe with pulling sleeve with machinery
Narrow spacing oil circuit and the big displacement operation away from oil circuit are realized in the operation of hydraulic pressure displacement executing agency.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God is with principle, and any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (8)
1. a kind of locking device for propeller beta pipe, it is characterised in that：Including：
Beta pipe, the outer circumferential of the beta pipe is provided with the first projection；
Pulling sleeve, the pulling sleeve is set on the outer circumferential of the beta pipe, the circumferential inner side of the pulling sleeve be provided with it is described
The first groove that first projection is adapted, the outer circumferential of the pulling sleeve is the second groove；And
Cover tooth collar, one end of the set tooth collar is connected to the outer circumferential of the beta pipe, the set tooth collar it is another
It is raised that the circumferential inner side at end is provided with second be adapted with second groove.
2. the locking device according to claim 1 for propeller beta pipe, it is characterised in that：Second projection is
The teeth portion being evenly arranged along the circumferential clear width of the set tooth collar.
3. the locking device according to claim 2 for propeller beta pipe, it is characterised in that：The teeth portion includes many
Individual tooth, the end surface shape of each tooth is trapezoidal.
4. the locking device for propeller beta pipe according to claim any one of 1-3, it is characterised in that：Described
Two raised sides are the first spring base, and the described second raised opposite side is second spring seat, the outer circumferential of the pulling sleeve
Side away from the set tooth collar is fixed with the 3rd spring base.
5. the locking device according to claim 4 for propeller beta pipe, it is characterised in that：The second spring seat
It is spring between the 3rd spring base.
6. the locking device according to claim 4 for propeller beta pipe, it is characterised in that：The circumference of the pulling sleeve
Outside is additionally provided with deep-slotted chip breaker, and the deep-slotted chip breaker is set close to second groove.
7. the locking device according to claim 6 for propeller beta pipe, it is characterised in that：Second groove with
It is jump ring between first spring base.
8. the locking device according to claim 1 for propeller beta pipe, it is characterised in that：The week of the beta pipe
The first hydraulic fluid port is additionally provided with laterally, and the outer circumferential of the pulling sleeve is additionally provided with the second oil being connected with first hydraulic fluid port
Mouthful.
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 true CN107044301A (en) | 2017-08-15 |
| CN107044301B CN107044301B (en) | 2022-02-11 |
Family
ID=59543205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611148424.8A Active CN107044301B (en) | 2016-12-13 | 2016-12-13 | Locking device for propeller beta tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107044301B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108032993A (en) * | 2017-12-15 | 2018-05-15 | 惠阳航空螺旋桨有限责任公司 | A kind of narrow spacing locks 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 |
| CN115783245A (en) * | 2023-01-31 | 2023-03-14 | 江苏新扬新材料股份有限公司 | Hydraulic fixed-distance stop device for airplane propeller |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108032993A (en) * | 2017-12-15 | 2018-05-15 | 惠阳航空螺旋桨有限责任公司 | A kind of narrow spacing locks stop device |
| 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 |
| CN115783245A (en) * | 2023-01-31 | 2023-03-14 | 江苏新扬新材料股份有限公司 | Hydraulic fixed-distance stop device for airplane propeller |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107044301B (en) | 2022-02-11 |
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