CN104280241B - A kind of helicopter rotor system resilient bearing loads measurement equipment - Google Patents
A kind of helicopter rotor system resilient bearing loads measurement equipment Download PDFInfo
- Publication number
- CN104280241B CN104280241B CN201410541592.8A CN201410541592A CN104280241B CN 104280241 B CN104280241 B CN 104280241B CN 201410541592 A CN201410541592 A CN 201410541592A CN 104280241 B CN104280241 B CN 104280241B
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- axis
- bearing
- hydraulic cylinder
- shaft
- 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
Links
- 238000005259 measurement Methods 0.000 title claims abstract description 19
- 230000000875 corresponding Effects 0.000 claims abstract description 10
- 239000012530 fluid Substances 0.000 claims description 30
- 210000001847 Jaw Anatomy 0.000 claims description 18
- 238000007906 compression Methods 0.000 claims description 15
- 210000001624 Hip Anatomy 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 17
- 238000000034 method Methods 0.000 abstract description 7
- 238000006073 displacement reaction Methods 0.000 description 17
- 238000005452 bending Methods 0.000 description 16
- 230000000694 effects Effects 0.000 description 4
- 239000012085 test solution Substances 0.000 description 4
- 210000003128 Head Anatomy 0.000 description 2
- 230000001808 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 210000000080 chela (arthropods) Anatomy 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Abstract
The present invention relates to a kind of helicopter rotor system resilient bearing and load measurement equipment, including measuring pedestal, X axis mechanism for testing, Y-axis and Z-axis direction crooked test mechanism, to lock locking mechanism, reverse mechanism for testing around X axis.Measure pedestal and be made up of the bottom being arranged on this equipment monitor station base, rotary shaft, bearing big end fixture, X axis mechanism for testing is arranged on the top of this equipment, reverses mechanism for testing around X axis, lock locking mechanism, Y-axis and Z-axis direction crooked test mechanism are arranged on the lower floor of this equipment, middle level and upper strata with being corresponding in turn to from the bottom to top to axial line along X respectively.Present invention achieves the detection to different model helicopter rotor system resilient bearing stiffness characteristics on a monitor station, universal good.Improve detection efficiency and the safety of detection process personnel, reduce detection intensity, it is possible to achieve resilient bearing once clamping on a monitor station, carry out loading and the measurement of multi-dimensional direction power (moment) simultaneously.
Description
Technical field
The present invention relates to a kind of loading and measure analytical equipment, specifically a kind of helicopter rotor system resilient bearing loads
Measurement equipment.
Background technology
Resilient bearing is one of three big technology of third generation rotor system, is the important composition parts of rotor system, its rigidity
Characteristic and quality are most important to Helicopter Safety, directly affect the quality of helicopter.Resilient bearing stiffness characteristics is to weigh elasticity
One of most important characteristic of bearing, it is therefore necessary to it detects accurately.But load the load mode measuring resilient bearing
Should be multi-dimensional force and the comprehensive force application system of moment, so that the designing technique loading measurement equipment is the most complicated.The most domestic still
There are not helicopter resilient bearing multi-dimensional force and moment to carry out the equipment loading and measuring the most simultaneously.The loading of prior art is measured
Resilient bearing means are that the loading carrying out certain individual event on different loading equipemtns respectively is measured, and this causes detection efficiency low, detection
The working strength of personnel is big, and detection process safety is poor, the shortcomings such as testing result precision is low.
Summary of the invention
The deficiency existed for above-mentioned current condition, the present invention provides a kind of helicopter rotor system resilient bearing to load and measures
Equipment.
A kind of helicopter rotor system resilient bearing loads measurement equipment, including measuring pedestal, X axis mechanism for testing, Y-axis
To with Z-axis direction crooked test mechanism, to lock locking mechanism, reverse mechanism for testing around X axis.
Measure pedestal and be made up of the bottom being arranged on this equipment monitor station base 1, rotary shaft 2, bearing big end fixture 3.
Monitor station base 1 upper surface is provided with bearing block.The axis body core of rotary shaft 2 is provided with splined hole, rotary shaft 2 axis body waist
Portion is provided with on rotating disk, and rotating disk and is provided with a pair pan symmetrically.Bearing its afterbody of big end fixture 3 is splined shaft, and its head sets
There is U-shaped jaw, and jaw both sides external is provided with installing hole.
Rotary shaft 2 axis body bottom is set in monitor station base 1 bearing saddle bore by thrust bearing.The axis body of rotary shaft 2
Spline is connected to the afterbody of bearing big end fixture 3.The U-shaped jaw of bearing big end fixture 3 is upward.
X axis mechanism for testing is arranged on the top of this equipment.The installation center of X axis mechanism for testing and monitor station base 1 axle
Bearing hole central coaxial, and both form the X of loading measurement system to axial line.
Around X axis reverse mechanism for testing, to lock locking mechanism, Y-axis and Z-axis direction crooked test mechanism respectively along X to
Axial line is arranged on the lower floor of this equipment, middle level and upper strata with being corresponding in turn to from the bottom to top.
Reverse mechanism for testing around X axis include reversing test fluid cylinder pressure A24 and reverse test fluid cylinder pressure B18 as power
Source, the couple force being made up of coplanar horizontal connecting rod D26, force transducer C25 and connecting rod E28, force transducer D 27 is
System, and the lower floor of the equipment that is arranged on that linked together by rotary shaft 2.
Described torsion test fluid cylinder pressure A24 piston flange end is arranged on the left back of rotary shaft 2 towards the right side, and passes through bolt
It is sequentially connected with ring flange and the flange end of connecting rod D26.Force transducer C25 chuck is between the core of two mounting flanges.
Connecting rod D26 connecting-rod head is hinged on one end pan of rotary shaft 2 rotating disk.
Reverse test fluid cylinder pressure B18 piston flange end and be arranged on the right front of rotary shaft 2 towards a left side, and pass through bolt successively
It is connected to ring flange and the flange end of connecting rod E28.Force transducer D 27 chuck is between the core of two mounting flanges.Connecting rod
E28 connecting-rod head is hinged on the other end pan of rotary shaft 2 rotating disk.
The X axis mechanism for testing being arranged on equipment top includes with compression verification hydraulic cylinder 10 as power source, by connecting rod
A9, force transducer A21 constitute force application system straight down.
Its upper end of connecting rod A9 is bulb end, and its lower end is ring flange.
Compression verification hydraulic cylinder 10 is bolted to connection on the support of this equipment, the work of compression verification hydraulic cylinder 10
Chock plug straight down, and is connected by the bulb end of spherical hinge A11 and connecting rod A9.The ring flange end of connecting rod A9 passes through bolt
Being sequentially connected with ring flange and the flange end of connecting rod A9, force transducer A21 chuck is between the core of two mounting flanges.
Y-axis and Z-axis direction crooked test mechanism include being with crooked test hydraulic cylinder B14 and crooked test hydraulic cylinder A6
Power source, by connecting shaft 8, connecting rod C22, force transducer B23, connecting rod B12 and connecting rod F30, force transducer E32, connecting rod
G31 constitutes the orthogonal both direction of coplanar horizontal and acts on the force application system of same point.
Its top of the square body of connecting shaft 8 is provided with flange, and the circular bosses core of its underpart is provided with splined hole, and connecting shaft 8
Square body just above and right flank is respectively equipped with a vertical chute.
Connecting rod F30 is identical with connecting rod B12 contour structures, and one end is ring flange, and the other end is bulb end.
Connecting rod G31 is identical with connecting rod C22 contour structures, and one end is round pin head, and the other end is ring flange.
The flange end of connecting shaft 8 is connected with the flange end of the connecting rod A9 of X axis mechanism for testing by ring flange.
Y-axis and Z-axis direction crooked test mechanism by being connected the upper strata of the equipment of being arranged on connecting shaft 8.
The piston shaft bowl of crooked test hydraulic cylinder A6 is just above corresponding with connecting shaft 8 square body.Crooked test hydraulic cylinder
The piston shaft bowl of A6 is hinged with connecting rod F30 bulb end by spherical hinge C29, and connecting rod F30 flange end is depended on by bolt
Secondary being connected to ring flange and connecting rod G31 ring flange end, force transducer E32 chuck is between the core of two mounting flanges, even
Bar G31 round pin head end embed connecting shaft 8 square body just before chute in.
The piston shaft bowl of crooked test hydraulic cylinder B14 is corresponding with connecting shaft 8 square body right flank.Crooked test hydraulic cylinder
The piston shaft bowl of B14 is hinged with connecting rod B12 bulb end with by spherical hinge B13, and connecting rod B12 flange end passes through spiral shell
Bolt is sequentially connected with ring flange and connecting rod C22 ring flange end, force transducer B23 chuck two mounting flanges core it
Between, connecting rod C22 round pin head end embeds in the chute of connecting shaft 8 square body right flank.
Lock locking mechanism is included locking hydraulic cylinder A7, locking hydraulic cylinder B15 and bearing small end fixture 5.
The waist of bearing small end fixture 5 is flat-square shaped, and the top of flat-square shaped is provided with splined shaft, and the bottom of flat-square shaped is bar shaped
Block, and bar blocks is provided with installing hole.
Locking hydraulic cylinder A7, locking hydraulic cylinder B15 piston head end are equipped with stick U-shaped jaw.
The middle level that lock locking mechanism is arranged on equipment is with locking hydraulic cylinder A7 and locking hydraulic cylinder B15 as power source, and
The both direction constituting coplanar horizontal and conllinear with bearing small end fixture 5 acts on the force application system of same point.
Bearing small end fixture 5 top spline is connected to the splined hole of the connecting shaft 8 of Y-axis and Z-axis direction crooked test mechanism
In.
Locking hydraulic cylinder A7 piston head end and locking hydraulic cylinder B15 piston head end are oppositely arranged on bearing small end fixture 5
Left and right side, and the U-shaped jaw of locking hydraulic cylinder A7 and the U-shaped jaw of locking hydraulic cylinder B15 to be clamped in bearing respectively little
On the left and right limit of the flat-square shaped of end fixture 5.
The technique effect of the present invention is embodied in following several aspect:
1. taken into full account in terms of design organization when carrying out different-stiffness Characteristics Detection and the coupling detection of multiple stiffness characteristics respectively
Movement interference problem, and by arranging that in the bearing small end fixture left and right sides hydraulic cylinder eliminates resilient bearing small end around X-axis
Degree of freedom, thus improve carrying out when resilient bearing test around X-axis torsional rigidity detect degree of accuracy；
2. by changing resilient bearing fixture, the resilient bearing of different model can be detected, it is achieved that on a monitor station
Detection to different model helicopter rotor system resilient bearing stiffness characteristics is universal good；
3. in terms of practical operation, the present invention meets resilient bearing clamped one time, can carry out dividing resilient bearing three-dimensional force and moment
Or simultaneously not loading, the detection of whole multidimensional stiffness characteristics can realize on a monitor station, eliminates entering of prior art
Change the process of laboratory table during row different-stiffness Characteristics Detection, improve detection efficiency, reduce the detection intensity of testing staff,
Improve the safety of detection process personnel；
4. from the point of view of unitary analysis, by the application of the present invention, it is possible to achieve resilient bearing once clamping on a monitor station, with
The loading of Shi Jinhang multi-dimensional direction power (moment) and measurement, make the detection efficiency of product can improve about 20%, testing staff's work
Intensity reduces about 60%.
Accompanying drawing explanation
Fig. 1 is the schematic three dimensional views of the present invention.
Fig. 2 is the front view that the present invention tests device.
Fig. 3 is the exploded view that the present invention detects each critical piece of device along X to direction of axis line.
Fig. 4 is the measurement pedestal of the present invention and reverses mechanism for testing exploded view around X axis.
Fig. 5 is Y-axis and the Z-axis direction crooked test mechanism exploded view of the present invention.
Sequence number in figure: 1 monitor station base, 2 rotary shafts, 3 bearing big end fixture, 4 laser displacement sensor A, 5
Bearing small end fixture, 6 crooked test hydraulic cylinder A, 7 locking hydraulic cylinder A, 8 connecting shafts, 9 connecting rod A, 10 compressions are surveyed
Test solution cylinder pressure, 11 spherical hinge A 12 connecting rod B, 13 spherical hinge B, 14 crooked test hydraulic cylinder B, 15 locking hydraulic cylinders
B, 16 laser displacement sensor B, 17 laser displacement sensor C, 18 torsion test fluid cylinder pressure B, 19 laser displacements pass
Sensor D, 20 resilient bearings, 21 force transducer A, 22 connecting rod C, 23 force transducer B, 24 torsion test fluid
Cylinder pressure A, 25 force transducer C, 26 connecting rod D, 27 force transducer D, 28 connecting rod E, 29 spherical hinge C, 30 companies
Bar F, 31 connecting rod G, 32 force transducer E.
Detailed description of the invention
Below in conjunction with the accompanying drawings, by embodiment, this utility model is further described.
See Fig. 1.A kind of helicopter rotor system resilient bearing loads measurement equipment, including measuring pedestal, X axis survey
Test-run a machine structure, Y-axis and Z-axis direction crooked test mechanism, to lock locking mechanism, reverse mechanism for testing around X axis.
See Fig. 4.Measure pedestal to be made up of monitor station base 1, rotary shaft 2, bearing big end fixture 3 and be arranged on this equipment
Bottom；Monitor station base 1 upper surface is provided with bearing block.Monitor station base 1 is fixed on ground and has enough intensity,
Can ensure that the safety of test process and the stability of test result.The axis body core of rotary shaft 2 is provided with splined hole, rotary shaft 2
Axis body waist is provided with on rotating disk, and rotating disk and is provided with a pair pan symmetrically.Bearing its afterbody of big end fixture 3 is splined shaft, its
Head is provided with U-shaped jaw, and jaw both sides external is provided with installing hole；Rotary shaft 2 axis body bottom is set in by thrust bearing
In monitor station base 1 bearing saddle bore.The axis body spline of rotary shaft 2 is connected to the afterbody of bearing big end fixture 3.The big end of bearing presss from both sides
The U-shaped jaw of tool 3 is upward.
See Fig. 2.Resilient bearing 20 is square body bottom it, and its waist is the frustum of a cone, and its top is provided with U-shaped mouth.Bullet
The square body of property bearing 20 is arranged on the U-shaped jaw of bearing big end fixture 5, and is bolted；X axis test machine
Structure is arranged on the top of this equipment.The installation center of X axis mechanism for testing and monitor station base 1 bearing saddle bore central coaxial, and
Both form the X of loading measurement system to axial line；Around X axis reverse mechanism for testing, to lock locking mechanism, Y-axis and
Z-axis direction crooked test mechanism respectively along X to axial line be arranged on being corresponding in turn to from the bottom to top the lower floor of this equipment, middle level and on
Layer.
See Fig. 4.Reverse mechanism for testing around X axis to include reversing test fluid cylinder pressure A24 and reversing test fluid cylinder pressure
B18 is power source, is made up of the power of coplanar horizontal connecting rod D26, force transducer C25 and connecting rod E28, force transducer D 27
Even force application system, and the lower floor of the equipment that is arranged on that linked together by rotary shaft 2；Reverse test fluid cylinder pressure A24 piston method
Lan Duan is arranged on the left back of rotary shaft 2 towards the right side, and is sequentially connected with ring flange and the flange of connecting rod D26 by bolt
End.Force transducer C25 chuck is between the core of two mounting flanges.Connecting rod D26 connecting-rod head is hinged on rotary shaft 2 rotating disk
One end pan on.
Reverse test fluid cylinder pressure B18 piston flange end and be arranged on the right front of rotary shaft 2 towards a left side, and pass through bolt successively
It is connected to ring flange and the flange end of connecting rod E28.Force transducer D 27 chuck is between the core of two mounting flanges.Connecting rod
E28 connecting-rod head is hinged on the other end pan of rotary shaft 2 rotating disk；Reverse test fluid cylinder pressure A24 and reverse test fluid cylinder pressure
B18 specifications and models are identical.The force transducer of this group is in order to measure torsion test fluid cylinder pressure A24 and to reverse test fluid cylinder pressure B18
Put on the power clockwise or counterclockwise in rotary shaft 2, and then converse according to rotating disk radius and put in rotary shaft 2
Moment clockwise or counterclockwise.
Laser displacement sensor D19 is installed, when reversing test fluid cylinder pressure A24 and reversing test fluid on monitor station base 1
Cylinder pressure B18 promotes rotating disk to rotate and then applies certain moment of torsion by rotary shaft 2 and bearing big end fixture 5 to resilient bearing 20
Time, laser displacement sensor D19 can measure the angle that rotating disk turns over, so that it is determined that the angle that resilient bearing 20 turns over.
See Fig. 3.The X axis mechanism for testing being arranged on equipment top includes with compression verification hydraulic cylinder 10 as power
Source, is constituted force application system straight down by connecting rod A9, force transducer A21；Its upper end of connecting rod A9 is bulb end, under it
End is ring flange；Compression verification hydraulic cylinder 10 is bolted to connection on the support of this equipment, compression verification hydraulic cylinder 10
Piston head straight down, and be connected by the bulb end of spherical hinge A11 and connecting rod A9.Described connected by spherical hinge permissible
Ensure that connecting rod A9 has the degree of freedom of Y-axis and Z-axis direction, it is to avoid connecting rod A9 bending change in Y-axis with Z-axis direction
Shape is interfered.The ring flange end of connecting rod A9 is sequentially connected with ring flange and the flange end of connecting rod A9 by bolt.Force transducer
A21 chuck is between the core of two mounting flanges, and this pressure transducer puts on bullet in order to measure compression verification hydraulic cylinder 10
Pressure on property bearing 20.
It is being provided with laser displacement sensor C17, when compression verification hydraulic cylinder from Z axis forward deflection 45 degree of directions of Y-axis forward
10 give resilient bearing 20 when applying X axis certain pressure, and laser displacement sensor C17 can measure resilient bearing 20 at X
Axial decrement.
See Fig. 5.Y-axis and Z-axis direction crooked test mechanism include with crooked test hydraulic cylinder B14 and crooked test liquid
Cylinder pressure A6 is power source, by connecting shaft 8, connecting rod C22, force transducer B23, connecting rod B12 and connecting rod F30, power sensing
Device E32, connecting rod G31 constitute the orthogonal both direction of coplanar horizontal and act on the force application system of same point.
Its top of the square body of connecting shaft 8 is provided with flange, and the circular bosses core of its underpart is provided with splined hole, and connecting shaft 8
Square body just above and right flank is respectively equipped with a vertical chute.Connecting shaft 8 just above and right flank vertical chute its act on
It is the degree of freedom that can ensure that connecting shaft 8 at X axis, resilient bearing X axis compression displacement amount (maximum 2 millis can be met
Rice), it is to avoid movement interference, this chute ensure that connecting rod C22 and connecting rod connecting rod G31 is perpendicular to connecting shaft 8 all the time simultaneously
Plane；Connecting rod F30 is identical with connecting rod B12 contour structures, and one end is ring flange, and the other end is bulb end；Connecting rod G31 and company
Bar C22 contour structures is identical, and one end is round pin head, and the other end is ring flange；The flange end of connecting shaft 8 passes through ring flange and X
Axially the flange end of the connecting rod A9 of mechanism for testing connects.
Y-axis and Z-axis direction crooked test mechanism by being connected the upper strata of the equipment of being arranged on connecting shaft 8.
The piston shaft bowl of crooked test hydraulic cylinder A6 is just above corresponding with connecting shaft 8 square body.Crooked test hydraulic cylinder
The piston shaft bowl of A6 is hinged with connecting rod F30 bulb end by spherical hinge C29, and connecting rod F30 flange end is depended on by bolt
Secondary being connected to ring flange and connecting rod G31 ring flange end, force transducer E32 chuck is between the core of two mounting flanges.Even
Bar G31 round pin head end embed connecting shaft 8 square body just before chute in, can in chute above-below direction short distance slide
(less than 3 millimeters).Force transducer E32 can measure crooked test hydraulic cylinder A6 and just act on the Z axis in connecting shaft 8
To or opposite force；The piston shaft bowl of crooked test hydraulic cylinder B14 is corresponding with connecting shaft 8 square body right flank.Crooked test
The piston shaft bowl of hydraulic cylinder B14 is hinged with connecting rod B12 bulb end with by spherical hinge B13, connecting rod B12 flange end
Being sequentially connected with ring flange and connecting rod C22 ring flange end by bolt, force transducer B23 chuck is at the core of two mounting flanges
Between portion.Connecting rod C22 round pin head end embed connecting shaft 8 square body right flank chute in, can in chute above-below direction
(less than 3 millimeters) is slided in short distance.Force transducer B23 can measure crooked test hydraulic cylinder B14 and act on connecting shaft 8
On Y-axis power forward or backwards.
See Fig. 3.Lock locking mechanism is included locking hydraulic cylinder A7, locking hydraulic cylinder B15 and bearing small end fixture 5.
The waist of bearing small end fixture 5 is flat-square shaped, and the top of flat-square shaped is provided with splined shaft, and the bottom of flat-square shaped is bar shaped
Block, and bar blocks is provided with installing hole；Locking hydraulic cylinder A7, locking hydraulic cylinder B15 piston head end are equipped with stick U-shaped pincers
Mouthful；The middle level that lock locking mechanism is arranged on equipment is with locking hydraulic cylinder A7 and locking hydraulic cylinder B15 as power source, and with
The both direction that bearing small end fixture 5 constitutes coplanar horizontal and conllinear acts on the force application system of same point；Bearing small end fixture 5
In the splined hole of the connecting shaft 8 that top spline is connected to Y-axis and Z-axis direction crooked test mechanism.
Locking hydraulic cylinder A7 piston head end and locking hydraulic cylinder B15 piston head end are oppositely arranged on bearing small end fixture 5
Left and right side, and the U-shaped jaw of locking hydraulic cylinder A7 and the U-shaped jaw of locking hydraulic cylinder B15 to be clamped in bearing respectively little
On the left and right limit of the flat-square shaped of end fixture 5；The U-shaped mouth of resilient bearing 20 is stuck in the bar blocks of bearing small end fixture 5,
By and be bolted.
When mounted, it is ensured that resilient bearing 20 and X are coaxial to axial line.
Bearing small end fixture about 5 two ends are arranged symmetrically with that locking hydraulic cylinder A7 and locking hydraulic cylinder B15 its role is to can be
Resilient bearing 20 carries out being fixed on bearing small end fixture 5 during torsional rigidity detection, to ensure to apply resilient bearing 20
The accuracy of moment of torsion.
Resilient bearing 20 or bear crooked test hydraulic cylinder A6 or bear the active force of crooked test hydraulic cylinder B14 and send out
During raw bending, whole resilient bearing 20 and connecting shaft 8 can extend because of bending, but because elongation is the least, bonded can
Somewhat to slide to compensate this elongation on keyway, thus prevent movement interference, to improve accuracy and the peace of equipment of test
Quan Xing；Dead ahead at resilient bearing 20 is provided with laser displacement sensor A4, surveys when resilient bearing 20 bears bending at Z axis
During the power that test solution cylinder pressure A6 applies, laser displacement sensor A4 can measure the resilient bearing 20 side-play amount in Z-direction.
It is provided with laser displacement sensor B16 on the right side of resilient bearing 20, surveys when resilient bearing 20 bears bending in Y-axis
During the power that test solution cylinder pressure B28 applies, laser displacement sensor B16 can measure the resilient bearing 20 skew in Y direction
Amount.
The operation principle of the present invention:
1, resilient bearing is carried out X axis stiffness characteristics test
See Fig. 2.Keeping compression verification hydraulic cylinder 10 to apply pressure to resilient bearing 20 when working, remaining fluid cylinder pressure does not works, logical
Excess pressure sensors A 21 can directly measure the pressure that resilient bearing 20 is born, and can pass through laser displacement sensor simultaneously
C17 measures the X axis compress variation of resilient bearing 20 under this pressure, by the pressure measured and compress variation, calculates
Go out X axis compression stiffness；
2, resilient bearing is carried out the bending stiffness characteristic test of Z-axis direction
See Fig. 5.Keeping crooked test hydraulic cylinder A6 work, remaining fluid cylinder pressure does not works, can be direct by force transducer E32
Measure resilient bearing 20 at the bending force suffered by Z-direction, and calculate moment of flexure further, can be passed by laser displacement simultaneously
Sensor A4 calculates the angle of bend of resilient bearing 20 under this bending force, by the Z-axis direction moment of flexure measured and angle of bend,
The bending stiffness of Z-axis direction can be calculated.In this test, under the effect by control station control valve, crooked test hydraulic cylinder A6
Respectively resilient bearing 20 can be applied the power in Z-axis direction direction, measure pressure by force transducer E32, may finally calculate
Resilient bearing 20 is in the bending stiffness in Z-axis direction direction；
3, resilient bearing is carried out the bending stiffness characteristic test of Y-axis
See Fig. 5.Keeping crooked test hydraulic cylinder B14 work, remaining fluid cylinder pressure does not works, can be straight by force transducer B23
Connect and measure resilient bearing 20 at the bending force suffered by Y direction, and calculate moment of flexure further, laser displacement can be passed through simultaneously
Sensor B16 calculates the angle of bend of resilient bearing 20 under this bending force, by the Y-axis moment of flexure measured and angle of bend
Degree, can calculate the bending stiffness of Y-axis.At this in test, under the effect by control station control valve, crooked test liquid
Cylinder pressure B14 can apply the power in Y-axis direction respectively to resilient bearing 20, measures pressure by force transducer B23, finally
The resilient bearing 20 bending stiffness in Y-axis direction can be calculated；
4, carry out resilient bearing testing around X axis torsional rigidity
See Fig. 2, Fig. 4.Resilient bearing 20 is fixed by locking hydraulic cylinder A7 and locking hydraulic cylinder B15 work, reverses survey simultaneously
Test solution cylinder pressure A24 works with reversing test fluid cylinder pressure B18, applies active force by rotating disk to rotary shaft 2, is sensed by power
Device C25 and force transducer D27 measures now to reverse test fluid cylinder pressure A24 and reverse test fluid cylinder pressure B18 and acts on rotary shaft
Power on 2, because rotating disk radius is certain and it is known that therefore by reversing test fluid cylinder pressure A24 and can reverse test fluid cylinder pressure
B18 acts on the power in rotary shaft 2 and draws the moment of torsion suffered by resilient bearing 20.Laser displacement sensor D19 can be passed through simultaneously
The angle that measuring and calculating resilient bearing 20 deflects around X-axis, by the moment of torsion measured and rotational angle, can calculate resilient bearing 20
Torsional rigidity around X-axis.At this in test, under the effect by control station control valve, reverse test fluid cylinder pressure A24 and torsion
Test fluid cylinder pressure B18 can provide clockwise and both direction counterclockwise moment of torsion to resilient bearing 20, it is possible to measuring and calculating bullet
Property bearing 20 around X-axis clockwise with the torsional rigidity of both direction counterclockwise；
5, above-mentioned four kinds of stiffness test methods are carried out simultaneously, can with testing elastic bearing bear compression, reverse, the coupling simultaneously such as bending
The stiffness characteristics of each dimension under cooperation.
Claims (5)
1. a helicopter rotor system resilient bearing loads measurement equipment, it is characterised in that: include measuring pedestal, X axis test
Mechanism, Y-axis and Z-axis direction crooked test mechanism, to lock locking mechanism, reverse mechanism for testing around X axis；
Described measurement pedestal is made up of the end being arranged on this equipment monitor station base (1), rotary shaft (2), bearing big end fixture (3)
Portion；
Described monitor station base (1) upper surface is provided with bearing block；The axis body core of described rotary shaft (2) is provided with splined hole, rotary shaft
(2) axis body waist is provided with on rotating disk, and rotating disk and is provided with a pair pan symmetrically；Described bearing big end fixture (3) its afterbody
For splined shaft, its head is provided with U-shaped jaw, and jaw both sides external is provided with installing hole；
Described rotary shaft (2) axis body bottom is set in monitor station base (1) bearing saddle bore by thrust bearing；Described rotary shaft
(2) axis body spline is connected to the afterbody of bearing big end fixture (3)；The U-shaped jaw court of described bearing big end fixture (3)
On；
Described X axis mechanism for testing is arranged on the top of this equipment；The installation center of X axis mechanism for testing and monitor station base (1)
Bearing saddle bore central coaxial, and both form the X of loading measurement system to axial line；
Described around X axis reverse mechanism for testing, to lock locking mechanism, Y-axis and Z-axis direction crooked test mechanism respectively along X to axle
Heart line is arranged on the lower floor of this equipment, middle level and upper strata with being corresponding in turn to from the bottom to top.
A kind of helicopter rotor system resilient bearing the most according to claim 1 loads measurement equipment, it is characterised in that: described
Reverse mechanism for testing including reversing test fluid cylinder pressure A (24) and reversing test fluid cylinder pressure B (18) around X axis is power
Source, is constituted coplanar horizontal by connecting rod D (26), force transducer C (25) and connecting rod E (28), force transducer D (27)
Couple force application system, and linked together the lower floor of the equipment that is arranged on by rotary shaft (2)；
Described torsion test fluid cylinder pressure A (24) piston flange end is arranged on the left back of rotary shaft (2) towards the right side, and passes through bolt
It is sequentially connected with ring flange and the flange end of connecting rod D (26)；Described force transducer C (25) chuck is at two mounting flanges
Between core；Described connecting rod D (26) connecting-rod head is hinged on one end pan of rotary shaft (2) rotating disk；
Described torsion test fluid cylinder pressure B (18) piston flange end is arranged on the right front of rotary shaft (2) towards a left side, and passes through bolt
It is sequentially connected with ring flange and the flange end of connecting rod E (28)；Described force transducer D (27) chuck is at two mounting flanges
Core between；Described connecting rod E (28) connecting-rod head is hinged on the other end pan of rotary shaft (2) rotating disk.
A kind of helicopter rotor system resilient bearing the most according to claim 1 loads measurement equipment, it is characterised in that: described
X axis mechanism for testing includes with compression verification hydraulic cylinder (10) as power source, by connecting rod A (9), force transducer A (21)
Constitute force application system straight down；
Described its upper end of connecting rod A (9) is bulb end, and its lower end is ring flange；
Described compression verification hydraulic cylinder (10) is bolted to connection on the support of this equipment, compression verification hydraulic cylinder (10)
Piston head straight down, and is connected by the bulb end of spherical hinge A (11) and connecting rod A (9)；Described connecting rod A (9)
Ring flange end is sequentially connected with ring flange and the flange end of connecting rod A (9), described force transducer A (21) chuck by bolt
Between the core of two mounting flanges.
A kind of helicopter rotor system resilient bearing the most according to claim 1 loads measurement equipment, it is characterised in that: described
Y-axis and Z-axis direction crooked test mechanism include
Power source, by connecting shaft (8), connecting rod C (22), force transducer B (23), connecting rod B (12) and connecting rod F (30), power
Sensor E (32), connecting rod G (31) constitute the orthogonal both direction of coplanar horizontal and act on the force system of same point
System；
Its top of square body of described connecting shaft (8) is provided with flange, and the circular bosses core of its underpart is provided with splined hole, and described connection
Axle (8) square body just above and right flank is respectively equipped with a vertical chute；
Described connecting rod F (30) is identical with connecting rod B (12) contour structures, and one end is ring flange, and the other end is bulb end；Described connecting rod
G (31) and connecting rod C (22) contour structures is identical, and one end is round pin head, and the other end is ring flange；
The flange end of described connecting shaft (8) is connected with the flange end of the connecting rod A (9) of X axis mechanism for testing by ring flange；
Described Y-axis and Z-axis direction crooked test mechanism by being connected the upper strata of the equipment of being arranged on connecting shaft (8)；
The piston shaft bowl of described crooked test hydraulic cylinder A (6) is just above corresponding with connecting shaft (8) square body；Crooked test hydraulic pressure
The piston shaft bowl of cylinder A (6) is hinged by spherical hinge C (29) and connecting rod F (30) bulb end, described connecting rod F
(30) flange end is sequentially connected with ring flange and connecting rod G (31) ring flange end, described force transducer E (32) by bolt
Chuck between the core of two mounting flanges, described connecting rod G (31) round pin head end embed connecting shaft (8) square body just before
In the chute in face；
The piston shaft bowl of described crooked test hydraulic cylinder B (14) is corresponding with connecting shaft (8) square body right flank；Crooked test liquid
The piston shaft bowl of cylinder pressure B (14) is hinged with by spherical hinge B (13) and connecting rod B (12) bulb end, described company
Bar B (12) flange end is sequentially connected with ring flange and connecting rod C (22) ring flange end, described force transducer B by bolt
(23) chuck is between the core of two mounting flanges, and it is square that described connecting rod C (22) round pin head end embeds connecting shaft (8)
In the chute of body right flank.
A kind of helicopter rotor system resilient bearing the most according to claim 1 loads measurement equipment, it is characterised in that: described
Lock locking mechanism is included locking hydraulic cylinder A (7), locking hydraulic cylinder B (15) and bearing small end fixture (5)；
The waist of described bearing small end fixture (5) is flat-square shaped, and the top of flat-square shaped is provided with splined shaft, and the bottom of flat-square shaped is bar shaped
Block, and bar blocks is provided with installing hole；
Described locking hydraulic cylinder A (7), locking hydraulic cylinder B (15) piston head end are equipped with stick U-shaped jaw；
The described middle level that lock locking mechanism is arranged on equipment is as power with locking hydraulic cylinder A (7) and locking hydraulic cylinder B (15)
Source, and constitute the both direction of coplanar horizontal and conllinear with bearing small end fixture (5) and act on the force application system of same point；
Described bearing small end fixture (5) top spline is connected to the flower of the connecting shaft (8) of Y-axis and Z-axis direction crooked test mechanism
In keyhole；
Described locking hydraulic cylinder A (7) piston head end and locking hydraulic cylinder B (15) piston head end are oppositely arranged on bearing small end fixture
(5) left and right side, and the U-shaped jaw of the U-shaped jaw of locking hydraulic cylinder A (7) and locking hydraulic cylinder B (15) divides
On the left and right limit of the flat-square shaped not being clamped in bearing small end fixture (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410541592.8A CN104280241B (en) | 2014-10-14 | A kind of helicopter rotor system resilient bearing loads measurement equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410541592.8A CN104280241B (en) | 2014-10-14 | A kind of helicopter rotor system resilient bearing loads measurement equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104280241A CN104280241A (en) | 2015-01-14 |
| CN104280241B true CN104280241B (en) | 2017-01-04 |
Family
ID=
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4089211A (en) * | 1976-11-01 | 1978-05-16 | United Technologies Corporation | Elastomeric bearing test machine |
| CN1818599A (en) * | 2006-03-17 | 2006-08-16 | 燕山大学 | Apparatus for testing fatigue strength of axial hinge bearing of helicopter |
| CN101363770A (en) * | 2008-10-08 | 2009-02-11 | 燕山大学 | Fatigue-tesing machine for ball socket bearing of helicopter main rotor |
| CN201307004Y (en) * | 2008-12-11 | 2009-09-09 | 中国航空工业第六〇二研究所 | A helicopter airscrew propeller pitch angle dynamic calibration system |
| CN103900811A (en) * | 2012-12-25 | 2014-07-02 | 中国直升机设计研究所 | Rotation load applying device for tail rotor shaft fatigue test |
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4089211A (en) * | 1976-11-01 | 1978-05-16 | United Technologies Corporation | Elastomeric bearing test machine |
| CN1818599A (en) * | 2006-03-17 | 2006-08-16 | 燕山大学 | Apparatus for testing fatigue strength of axial hinge bearing of helicopter |
| CN101363770A (en) * | 2008-10-08 | 2009-02-11 | 燕山大学 | Fatigue-tesing machine for ball socket bearing of helicopter main rotor |
| CN201307004Y (en) * | 2008-12-11 | 2009-09-09 | 中国航空工业第六〇二研究所 | A helicopter airscrew propeller pitch angle dynamic calibration system |
| CN103900811A (en) * | 2012-12-25 | 2014-07-02 | 中国直升机设计研究所 | Rotation load applying device for tail rotor shaft fatigue test |
Non-Patent Citations (1)
| Title |
|---|
| 直升机旋翼系统弹性轴承刚度特性试验方法研究;黄晓东等;《机械强度》;20120228;第34卷(第2期);第270-273页 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106546380A (en) | A kind of stepless space criteria vectorial force calibrating installation | |
| CN108645562B (en) | Three-axis Hopkinson rod synchronous dynamic calibration device and method for three-dimensional impact force sensor | |
| CN105423910B (en) | Deflection angle of airplane control surface degree measuring device and method | |
| CN103926094B (en) | A kind of machine static rigidity test device and method simulating true cutting operating mode | |
| CN109556821B (en) | Device for measuring relative position of balance center and wind tunnel test model | |
| CN104215443B (en) | One kind has led rocking arm joint torque loading device | |
| CN103743338B (en) | There is sphere revolution runout error and compensate laser tracking measurement system and the compensation method thereof of function | |
| CN105571503B (en) | A kind of wind electricity blade Vertical Static loading bidirectional displacement deformation accurately measures method and device | |
| CN205175691U (en) | Experimental device for measure air supporting hydrostatic bearing bearing capacity | |
| CN203203496U (en) | Bend pipe inspection device | |
| CN106124199A (en) | Precision speed reduction device static properties test device and method of testing thereof | |
| CN106769486A (en) | A kind of flexible connecting member testboard | |
| CN205879528U (en) | Precision speed reducer static performance testing arrangement | |
| CN105136391A (en) | Method of measuring distance between ground force bearing points of plane and system | |
| CN107014617A (en) | The detection fixture of the shaped grooved self-lubricating bearing assembling of outer shroud | |
| CN105369846B (en) | A kind of working device of loader load test system | |
| CN111366988A (en) | Component type drilling strain gauge complete machine detection platform controlled by six degrees of freedom | |
| CN104792361B (en) | Cone columnar member barycenter, the inclined measurement apparatus of matter | |
| CN104280241B (en) | A kind of helicopter rotor system resilient bearing loads measurement equipment | |
| CN207892931U (en) | A kind of experiment loading unit of verification pressurized strut bearing capacity | |
| CN202083551U (en) | Testing stand simulation loading device of wind generating set | |
| CN109342194A (en) | A kind of rock sample transversely deforming measuring device | |
| CN202869809U (en) | Engine butt-joint and rotation mechanism with detection function | |
| CN208872464U (en) | Static balance testing device for propeller | |
| CN208125117U (en) | A kind of round rod piece shaft centerline measurement device for engineering survey |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170104 Termination date: 20201014 |