CN109506915A - A kind of tail-rotor steering assembly fatigue experimental device - Google Patents
A kind of tail-rotor steering assembly fatigue experimental device Download PDFInfo
- Publication number
- CN109506915A CN109506915A CN201811340602.6A CN201811340602A CN109506915A CN 109506915 A CN109506915 A CN 109506915A CN 201811340602 A CN201811340602 A CN 201811340602A CN 109506915 A CN109506915 A CN 109506915A
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- Prior art keywords
- tail
- steering assembly
- rotor steering
- pressurized strut
- loading
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
Abstract
The application belongs to helicopter tail rotor steering assembly fatigue test technology field, and in particular to a kind of tail-rotor steering assembly fatigue experimental device, including fixed device, for fixing tail-rotor steering assembly；Load charger, for being connect with tail-rotor steering assembly, first loading force and the second loading force are applied to tail-rotor steering assembly, wherein, angle between first loading force and the second loading force is predetermined angular, apply the loading force of predetermined angular for tail-rotor steering assembly when carrying out the fatigue test of tail-rotor steering assembly, provides the actual fatigue test of fitting for it and examine environment, complete the fatigue test to tail-rotor steering assembly.
Description
Technical field
The application belongs to helicopter tail rotor steering assembly fatigue test technology field, and in particular to a kind of tail-rotor steering assembly
Fatigue experimental device.
Background technique
Helicopter tail rotor is to keep aircraft balanced and auxiliary pushing aircraft flight, under helicopter flight state, puts down
The load for rotor torque and the reverse torque both direction of weighing is most important to the safe flight of helicopter.Tail-rotor steering assembly is
Important component on helicopter tail rotor, performance directly affect the working effect of helicopter tail rotor, carry out fatigue test to it, obtain
Its fatigue behaviour and weak part are obtained, judges that its service life provides foundation for it, is had for its design and improvement important
Meaning.
Tail-rotor steering assembly is made of multiple components with mutual movement relation, and structure is as shown in Figure 1, comprising: interior
Cylinder 1, outer cylinder 2, two loaded auricles 3 are with fixation fork ear 4, and inner cylinder 1 is set on tail-rotor axis, thereon two loaded auricles 3 and tail-rotor
Pitch-change-link connection, fixation fork ear 4 and helicopter are fixedly installed thereon, and in the helicopter tail rotor course of work, inner cylinder 1 follows tail-rotor
Axis rotation, outer cylinder 2 is then opposing stationary, and two loaded auricles 3 bear the load of tail-rotor pitch-change-link transmitting.Due to tail-rotor steering assembly
Loading conditions are complex, and load seriously, currently, lack corresponding experimental provision and provide fitting actual fatigue test for it
Environment is examined, those skilled in the art can not accurately obtain its fatigue behaviour and its weak part, thus to a certain degree
On limit design and further improvement to it.
Thus, it is desirable to have a kind of technical solution overcomes or at least mitigates at least one drawbacks described above of the prior art.
Summary of the invention
The purpose of the application is to provide a kind of tail-rotor steering assembly fatigue experimental device, to overcome or alleviated by above-mentioned at least one
The defect of aspect.
The technical solution of the application is:
A kind of tail-rotor steering assembly fatigue experimental device, comprising:
Fixed device, for fixing tail-rotor steering assembly；
Load charger, for connect with tail-rotor steering assembly, to tail-rotor steering assembly the first loading force of application and the
Two loading forces, wherein there is predetermined angular between the first loading force and the second loading force.
According at least one embodiment of the application, fixed device includes:
Ears connector；
Fixing axle；
Fixed plate, one side surface are fixedly connected with the end face of fixing axle one end, and ears connector is solid in the fixed plate side
Fixed setting；Wherein,
Fixing axle is used for inside the inner cylinder of tail-rotor steering assembly；
Ears connector is used to be bolted to connection with the fixation fork ear of tail-rotor steering assembly.
According at least one embodiment of the application, the protrusion on ears connector is screwed onto fixed plate.
According at least one embodiment of the application, load charger includes:
First loading device is connect for a loaded auricle with tail-rotor steering assembly, is applied to tail-rotor steering assembly
First loading force；
Second loading device connect for another loaded auricle with tail-rotor steering assembly, applies to tail-rotor steering assembly
Add the second loading force.
According at least one embodiment of the application, the first loading device, comprising:
First pressurized strut；
First force snesor, one end are connect with one end of the first pressurized strut；
First monaural connector, is arranged in the other end of the first force snesor, for hinged with a loaded auricle；
Second loading device, comprising:
Second pressurized strut；
Second force snesor, one end are connect with one end of the second pressurized strut；
Second monaural connector, is arranged in the other end of the second force snesor, for hinged with another loaded auricle.
According at least one embodiment of the application, above-mentioned fatigue experimental device further includes having:
Crossbeam, wall surface offer two strip through-holes；
Two struts, wherein one end of a strut is fixedly connected with one end of crossbeam, one end of another strut and crossbeam
The other end is fixedly connected；
First loading device further includes having the first jointing, and it is remote with the first pressurized strut that one end passes through a strip through-hole
One end from the first force snesor is hinged, and the first jointing can be axially moved along the strip through-hole；
Second loading device further includes having the second jointing, and one end passes through another strip through-hole and the second pressurized strut
One end far from the second force snesor is hinged, and the second jointing can be axially moved along the strip through-hole.
According at least one embodiment of the application, the first jointing is provided with far from one end of the first pressurized strut 7
One caging bolt；
Second jointing is provided with the second caging bolt far from one end of the second pressurized strut.
According at least one embodiment of the application, above-mentioned fatigue experimental device further includes having two clamping plates, comprising:
Clamped condition, two clamping plates clamp the outer cylinder of the first pressurized strut, the outer cylinder of the second pressurized strut and two struts respectively；
Disengaged condition, two clamping plates are separated with the outer cylinder of the first pressurized strut, the outer cylinder of the second pressurized strut and two struts.
According at least one embodiment of the application, above-mentioned fatigue experimental device further includes having multiple clamping plate bolts, two folders
Plate is bolted by each clamping plate, and each clamping plate bolt includes
Tight condition, two clamping plates are in clamped condition；
Unscrew state, two clamping plates are in disengaged condition.
According at least one embodiment of the application, fixed plate is rounded, and is coaxially disposed with fixing axle, thereon along axial direction
Multiple fixed holes are opened up, its circumferential direction of each fixed hole is uniformly distributed；
Above-mentioned fatigue experimental device further includes having pedestal, and two struts are fixedly connected far from one end of crossbeam with pedestal, fixed
Plate is screw-coupled to pedestal by multiple fixing bolts, and each fixing bolt passes through a fixed hole.
At least there are following advantageous effects in the application: providing a kind of tail-rotor steering assembly fatigue experimental device, wrap
Fixed device is included, for fixing tail-rotor steering assembly；Load charger grasps tail-rotor for connecting with tail-rotor steering assembly
Vertical component applies the first loading force and the second loading force, wherein the angle between the first loading force and the second loading force is predetermined
Angle applies the loading force of predetermined angular for tail-rotor steering assembly when carrying out the fatigue test of tail-rotor steering assembly, provides for it
It is bonded actual fatigue test examination environment, completes the fatigue test to tail-rotor steering assembly.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of tail-rotor steering assembly provided by the embodiments of the present application；
Fig. 2 is tail-rotor steering assembly fatigue experimental device operation schematic diagram provided by the embodiments of the present application；
Fig. 3 is one partial structural diagram of tail-rotor steering assembly fatigue experimental device provided by the embodiments of the present application；
Fig. 4 is the structural schematic diagram of partial structurtes and the cooperation of tail-rotor steering assembly in the application Fig. 3；
Fig. 5 is the another partial structural diagram of tail-rotor steering assembly fatigue experimental device provided by the embodiments of the present application.
Specific embodiment
The application is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining related application, rather than the restriction to this application.It also should be noted that in order to
Convenient for description, part relevant to the application is illustrated only in attached drawing.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The application is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
It should be noted that in the description of the present application, term " center ", "upper", "lower", "left", "right", "vertical",
The direction of the instructions such as "horizontal", "inner", "outside" or the term of positional relationship are direction based on the figure or positional relationship, this
It is intended merely to facilitate description, rather than indication or suggestion described device or element must have a particular orientation, with specific
Orientation construction and operation, therefore should not be understood as the limitation to the application.In addition, term " first ", " second ", " third " are only used
In description purpose, it is not understood to indicate or imply relative importance.
In addition it is also necessary to explanation, in the description of the present application unless specifically defined or limited otherwise, term " peace
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.To those skilled in the art, it can understand that above-mentioned term exists as the case may be
Concrete meaning in the application.
1 to Fig. 5 the application is described in further details with reference to the accompanying drawing.
A kind of tail-rotor steering assembly fatigue experimental device, comprising:
Fixed device, for fixing tail-rotor steering assembly；
Load charger, for connect with tail-rotor steering assembly, to tail-rotor steering assembly the first loading force of application and the
Two loading forces, wherein there is predetermined angular between the first loading force and the second loading force.
In some alternative embodiments, fixed device includes: ears connector 5；Fixing axle 6；Fixed plate 15, one side table
Face is fixedly connected with the end face of 6 one end of fixing axle, and ears connector 5 is fixedly installed in the side of fixed plate 15；Wherein, fixing axle 6
Inside inner cylinder 1 for passing through tail-rotor steering assembly；Ears connector 5 is used to pass through spiral shell with the fixation fork ear 4 of tail-rotor steering assembly
Bolt is fixedly connected.
In some alternative embodiments, the protrusion on ears connector 5 is screwed onto fixed plate 15.
In some alternative embodiments, load charger includes: the first loading device, is used for and tail-rotor steering assembly
A loaded auricle 3 connect, the first loading force is applied to tail-rotor steering assembly；Second loading device, for being manipulated with tail-rotor
Another loaded auricle 3 of component connects, and applies the second loading force to tail-rotor steering assembly.
In some alternative embodiments, the first loading device, comprising: the first pressurized strut 7；First force snesor, one
End is connect with one end of the first pressurized strut 7；First monaural connector, is arranged in the other end of the first force snesor, is used for and one
Loaded auricle 3 is hinged；Second loading device, comprising: the second pressurized strut 8；Second force snesor, one end and the second pressurized strut 8
One end connection；Second monaural connector, is arranged in the other end of the second force snesor, for hinged with another loaded auricle 3.
For above-mentioned loading device, it will be readily appreciated by those skilled in the art that the first loading device of design and second plus
Carry set it is hinged with loaded auricle, it is convenient to adjust angle between the first loading force and the second loading force to predetermined angular,
Those skilled in the art are further understood that above-mentioned predetermined angular, are true according to the actual loading conditions of tail-rotor steering assembly
It is fixed, really to simulate the loaded situation of tail-rotor steering assembly.
In some alternative embodiments, above-mentioned fatigue experimental device further includes having: crossbeam 9, and wall surface offers two
Shape through-hole；Two struts 10, wherein one end of a strut 10 is fixedly connected with one end of crossbeam 9, one end of another strut 10 with
The other end of crossbeam 9 is fixedly connected；First loading device further includes having the first jointing 11, and it is logical that one end passes through a bar shaped
Hole and first one end of pressurized strut 7 far from the first force snesor are hinged, and the first jointing 11 can be along the strip through-hole axis
To movement；Second loading device further includes having the second jointing 12, and one end passes through another strip through-hole and the second actuation
8 one end far from the second force snesor of cylinder are hinged, and the second jointing 12 can be axially moved along the strip through-hole.First connects
Connector 11 and the second jointing 12 are axially moved along strip through-hole, it can be achieved that between the first loading force and the second loading force
Angle adjustment.
In some alternative embodiments, the first jointing 11 is provided with the first limit far from one end of the first pressurized strut 7
Position bolt；Second jointing 12 is provided with the second caging bolt far from one end of the second pressurized strut 8.First caging bolt and
Two caging bolts can prevent the jointing 11 and the second jointing 12 from deviating from from strip through-hole.
In some alternative embodiments, above-mentioned fatigue experimental device further includes having two clamping plates 13, comprising: clamped condition,
Two clamping plates 13 clamp the outer cylinder of the first pressurized strut 7, the outer cylinder of the second pressurized strut 8 and two struts 10 respectively；Disengaged condition, two folders
Plate 13 is separated with the outer cylinder of the first pressurized strut 7, the outer cylinder of the second pressurized strut 8 and two struts 10.
For above-mentioned fatigue experimental device, it will be readily appreciated by those skilled in the art that two clamping plates 13 are in disengaged condition
When, staff can freely adjust the relative position of the first pressurized strut 7 and the second pressurized strut 8, adjust the first loading force and the
Angle between two loading forces；When two clamping plates 13 are in clamped condition, two clamping plates 13 clamp respectively the first pressurized strut 7 outer cylinder,
The outer cylinder of second pressurized strut 8 and two struts 10, i.e. the first pressurized strut 7 two strut opposite with the position of the second pressurized strut 8,10 quilt
It is fixed, in this regard, advantageously, loading device can be prevented when applying the first loading force and the second loading force, the first pressurized strut 7 and
Second pressurized strut 8 moves, and makes the simulated environment distortion to tail-rotor steering assembly.
In some alternative embodiments, above-mentioned fatigue experimental device further includes having multiple clamping plate bolts, and two clamping plates 13 are logical
It crosses each clamping plate to be bolted, each clamping plate bolt includes tight condition, and two clamping plates 13 are in clamped condition；Unscrew state, two
Clamping plate 13 is in disengaged condition.
In some alternative embodiments, fixed plate 15 is rounded, and is coaxially disposed with fixing axle 6, opens thereon along axial direction
If multiple fixed holes, its circumferential direction of each fixed hole is uniformly distributed；Above-mentioned fatigue experimental device further includes having pedestal 14, and two
The one end of bar 10 far from crossbeam 9 is fixedly connected with pedestal 14, and fixed plate 15 is screw-coupled to pedestal 14 by multiple fixing bolts, each
Fixing bolt passes through a fixed hole.
The fatigue experimental device accurate simulation provided in the present embodiment installation fixation side of the tail-rotor steering assembly on machine
Formula realizes the simulation to tail-rotor steering assembly installation boundary condition, and can rapidly and accurately load the load of certain angle, ability
Field technique personnel can apply the fatigue behaviour and its weak part of its tail-rotor steering assembly for accurately obtaining it, realize the mesh of test
's.
So far, it has been combined preferred embodiment shown in the drawings and describes the technical solution of the application, still, this field
Technical staff is it is easily understood that the protection scope of the application is expressly not limited to these specific embodiments.Without departing from this
Under the premise of the principle of application, those skilled in the art can make equivalent change or replacement to the relevant technologies feature, these
Technical solution after change or replacement is fallen within the protection scope of the application.
Claims (10)
1. a kind of tail-rotor steering assembly fatigue experimental device characterized by comprising
Fixed device, for fixing tail-rotor steering assembly；
Load charger applies the first loading force to the tail-rotor steering assembly for connecting with the tail-rotor steering assembly
And second loading force, wherein there is predetermined angular between first loading force and second loading force.
2. fatigue experimental device according to claim 1, which is characterized in that the fixed device includes:
Ears connector (5)；
Fixing axle (6)；
Fixed plate (15), one side surface are fixedly connected with the end face of the fixing axle (6) one end, and the ears connector (5)
It is fixedly installed in the fixed plate (15) side；Wherein,
The fixing axle (6) is used for internal across the inner cylinder (1) of the tail-rotor steering assembly；
The ears connector (5) is used to be bolted to connection with the fixation fork ear (4) of the tail-rotor steering assembly.
3. fatigue experimental device according to claim 2, which is characterized in that the protrusion on the ears connector (5) is spirally connected
On the fixed plate (15).
4. fatigue experimental device according to claim 2, which is characterized in that the load charger includes:
First loading device, for being connect with one of the tail-rotor steering assembly loaded auricle (3), to the tail-rotor manipulation group
Part applies first loading force；
Second loading device is connect, to the tail-rotor for another symmetrical loaded auricle (3) with the tail-rotor steering assembly
Steering assembly applies second loading force.
5. fatigue device according to claim 4, which is characterized in that
First loading device, comprising:
First pressurized strut (7)；
First force snesor, one end are connect with one end of first pressurized strut (7)；
The other end of first force snesor is arranged in first monaural connector, for cutting with scissors with a loaded auricle (3)
It connects；
Second loading device, comprising:
Second pressurized strut (8)；
Second force snesor, one end are connect with one end of second pressurized strut (8)；
The other end of second force snesor is arranged in second monaural connector, for cutting with scissors with loaded auricle (3) described in another
It connects.
6. fatigue experimental device according to claim 5, which is characterized in that further include having:
Crossbeam (9), wall surface offer two strip through-holes；
Two struts (10), wherein one end of a strut (10) is fixedly connected with one end of the crossbeam (9), Ling Yisuo
The one end for stating strut (10) is fixedly connected with the other end of the crossbeam (9)；
First loading device further includes having the first jointing (11), one end pass through strip through-hole with it is described
The one end of first pressurized strut (7) far from first force snesor is hinged, and first jointing (11) can be along this
Shape through-hole is axially moved；
Second loading device further includes having the second jointing (12), and one end passes through another described strip through-hole and institute
It is hinged to state the one end of the second pressurized strut (8) far from second force snesor, and second jointing (12) can be along this
Strip through-hole is axially moved.
7. fatigue experimental device according to claim 6, which is characterized in that
First jointing (11) is provided with the first caging bolt far from one end of first pressurized strut (7)；
Second jointing (12) is provided with the second caging bolt far from one end of second pressurized strut (8).
8. fatigue experimental device according to claim 6, which is characterized in that further include having two clamping plates (13), comprising:
Clamped condition, two clamping plates (13) clamp the outer cylinder of first pressurized strut (7), second pressurized strut (8) respectively
Outer cylinder and two struts (10)；
Disengaged condition, two clamping plates (13) and the outer cylinder of first pressurized strut (7), the outer cylinder of second pressurized strut (8)
And two strut (10) separation.
9. fatigue experimental device according to claim 8, which is characterized in that further include having multiple clamping plate bolts, described in two
Clamping plate (13) is bolted by each clamping plate, and each clamping plate bolt includes
Tight condition, two clamping plates (13) are in clamped condition；
Unscrew state, two clamping plates (13) are in disengaged condition.
10. fatigue experimental device according to claim 6, which is characterized in that
The fixed plate (15) is rounded, and is coaxially disposed with the fixing axle (6), and it is logical to open up multiple fixations along axial direction thereon
Hole, each its circumferential direction of the fixed hole are uniformly distributed；
It further include having pedestal (14), one end and the pedestal (14) far from the crossbeam (9) of two struts (10) are fixed to be connected
It connects, the fixed plate (15) is screw-coupled to the pedestal (14) by multiple fixing bolts, and each fixing bolt passes through one
The fixed hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811340602.6A CN109506915A (en) | 2018-11-12 | 2018-11-12 | A kind of tail-rotor steering assembly fatigue experimental device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811340602.6A CN109506915A (en) | 2018-11-12 | 2018-11-12 | A kind of tail-rotor steering assembly fatigue experimental device |
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| Publication Number | Publication Date |
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| CN109506915A true CN109506915A (en) | 2019-03-22 |
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ID=65748107
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811340602.6A Pending CN109506915A (en) | 2018-11-12 | 2018-11-12 | A kind of tail-rotor steering assembly fatigue experimental device |
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Cited By (2)
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| CN112834331A (en) * | 2020-12-28 | 2021-05-25 | 国机集团北京飞机强度研究所有限公司 | Outfield tension and compression load calibration test method |
| CN114544349A (en) * | 2022-02-25 | 2022-05-27 | 中国航空工业集团公司西安飞机设计研究所 | Strength test structure and method for airtight top plate connecting structure of transport engine room |
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Application publication date: 20190322 |