CN110095240A - Turbogenerator casing stiffness test secondary load device - Google Patents
Turbogenerator casing stiffness test secondary load device Download PDFInfo
- Publication number
- CN110095240A CN110095240A CN201810089471.2A CN201810089471A CN110095240A CN 110095240 A CN110095240 A CN 110095240A CN 201810089471 A CN201810089471 A CN 201810089471A CN 110095240 A CN110095240 A CN 110095240A
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- Prior art keywords
- pressurized strut
- load
- vertical
- casing
- point
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Classifications
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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
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0041—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining deflection or stress
- G01M5/005—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by determining deflection or stress by means of external apparatus, e.g. test benches or portable test systems
Abstract
The purpose of the present invention is to provide a kind of turbogenerator casing stiffness test secondary load devices, can carry out tension and compression, bending, the load of torsional rigidity test of vehicular.Wherein loading disc has the load center being coaxially arranged with tested casing；Upper group section upper end connects loading disc, and lower end with the upper end of tested casing for connecting；Lower group section upper end is used to connect the lower end of tested casing；Grounding disc is connect for being fixed on basis with the lower end of lower group section；Multiple vertical pressurized struts are arranged in the vertical direction, and one end is connected on the Vertical loading point of loading disc, and Vertical loading point is symmetrical centered on load center；Multiple horizontal pressurized struts are arranged in the horizontal direction, one end is connected on the point of the horizontal addload on loading disc, horizontal addload point is arranged in the diametrical direction of loading disc, and a horizontal addload point is located at load center, remaining horizontal addload point is symmetrical centered on load center；Rack beams are for installing horizontal pressurized strut.
Description
Technical field
The present invention relates to turbogenerator experimental rigs, and in particular to a kind of for realizing the examination of turbogenerator casing rigidity
The secondary load device tested.
Background technique
Aero-engine stator casing is the skeleton of engine, with the development of aero-engine high revolving speed, high thrust ratio,
Casing is designed as thin-wall tubular structure more, and rigidity is weaker, and the rigidity of casing has the support stiffness and critical speed of rotor very big
Influence, casing rigidity also will affect the arrangement etc. of complete machine oscillation measuring point, and with the development of finite element technique, component and whole
The finite element analysis of machine is widely used to engineering reality, but it is necessary to be based on stiffness characteristics test data to finite element model
Carry out Model Checking and calibration, it is therefore necessary to which the stiffness test for carrying out casing obtains the stiffness characteristics of casing.
The rigidity test of aero-engine casing includes tension and compression rigidity, bending stiffness and torsion stiffness test, aeroplane engine
Machine casing is mostly thin-wall tubular structure, and secondary load device is needed to realize load when carrying out stiffness test.
It is fewer disclosed in the secondary load device of stiffness test at present, and it is not suitable for aero-engine casing knot
Structure.It is therefore desirable to design the secondary load device for being suitable for aero-engine casing stiffness test, for carrying out stiffness test.
Summary of the invention
The purpose of the present invention is to provide a kind of turbogenerator casing stiffness test secondary load devices, can be drawn
Pressure, bending, the load of torsional rigidity test of vehicular.
In turbogenerator casing stiffness test secondary load device according to the present invention, loading disc has and tested machine
The load center that casket is coaxially arranged；Upper group section upper end connects the loading disc, and lower end is for the upper end with tested casing
Connection；Lower group section upper end is used to connect the lower end of tested casing；Grounding disc for being fixed on basis, and with lower group section
Lower end connection；Multiple vertical pressurized struts are arranged in the vertical direction, and one end is connected to the vertical of the loading disc and adds
On loading point, the Vertical loading point is symmetrical centered on the load center；Multiple horizontal pressurized struts are in the horizontal direction
Setting, one end are connected on the point of the horizontal addload on loading disc, and the horizontal addload point is arranged in the loading disc
In diametrical direction, and a horizontal addload point is located at the load center, during remaining horizontal addload point with the load center is
The heart is symmetrical；Rack beams are for installing the horizontal pressurized strut.
In one embodiment, it is with the load center in orthogonal two diametrical directions of the loading disc
Center is respectively disposed with the Vertical loading point, for connecting with the vertical pressurized strut.
In one embodiment, the rack beams are mounted on guide rail, horizontally moveable adjustment position.
In one embodiment, the vertical pressurized strut includes threaded adapter, and the adapter passes through described
Hole at Vertical loading point is fixed by nuts.
In one embodiment, the horizontal pressurized strut includes threaded adapter, is set at the horizontal addload point
It is equipped with load auricle, the adapter is connect with the load auricle.
In one embodiment, the vertical pressurized strut or the horizontal pressurized strut include pedestal, connect with pedestal
Cylinder, the pressurized strut extended segment upwardly extended from force snesor, is connected to pressurized strut at the force snesor for being connected to cylinder upper end
Threaded adapter on extended segment.
In one embodiment, when carrying out bending stiffness test load, in order to guarantee that the stretching for being applied to casing carries
Lotus and compressive load are equal, and the power for carrying out the vertical pressurized strut of tensile load needs to add the weight of loading disc and vertical pressurized strut
Power, the power for carrying out the vertical pressurized strut of compressive load need to subtract the gravity of loading disc and vertical pressurized strut.
Aforementioned schemes the utility model has the advantages that
1, the secondary load device suitable for the stiffness test of aero-engine casing structure is proposed.
2, the tension and compression of aero-engine casing structure, bending, torsional rigidity test of vehicular secondary load can be carried out respectively.
3, by moment of flexure and torque load conversion power load.
4, in order to guarantee the correctness of axial push-pull rigidity and the load of bending stiffness load, vertical pressurized strut is equal along loading disc
It is even symmetrical.
5, the circle of loaded load position when in order to guarantee torsion stiffness and lateral (vertical) rigidity test in loading disc
The loading effect face of the heart, three load auricles is in loading disc diametrically, and two pressurized struts of torsion stiffness test symmetrically divide
The load pressurized strut of cloth, lateral (vertical) rigidity test is at the center location of loading disc.Pressurized strut side is only needed in this way
Design has test bracket beam, and the depth of parallelism of two pressurized struts is easy to be consistent.
Detailed description of the invention
The above and other features of the present invention, property and advantage will pass through retouching with reference to the accompanying drawings and examples
It states and becomes readily apparent from, in which:
Fig. 1 is the perspective view of turbogenerator casing stiffness test secondary load device；
Fig. 2 is the main view of turbogenerator casing stiffness test secondary load device；
Fig. 3 is the perspective view of loading disc；
Fig. 4 is the top view of loading disc；
Fig. 5 is the main view of pressurized strut；
Fig. 6 is the number schematic diagram of load(ing) point on loading disc.
Specific embodiment
The invention will be further described with attached drawing combined with specific embodiments below, elaborates in the following description more
Details to facilitate a thorough understanding of the present invention, still the present invention obviously can be come with a variety of other ways different from this description it is real
It applies, those skilled in the art can make similar popularization according to practical situations without violating the connotation of the present invention, drill
It unravels silk, therefore should not be limited the scope of the invention with the content of this specific embodiment.
It should be noted that attached drawing is only as an example, it is not to draw according to the condition of equal proportion, and do not answer
This is construed as limiting in this, as the protection scope to actual requirement of the present invention.
As shown in Figure 1 and Figure 2, turbogenerator casing stiffness test secondary load device includes connecting with tested 1 upper end of casing
The upper group section 2 that connects, the lower group section 3 being connect with the lower end of tested casing 1, be fixed on the basis of (the preferably band spoke of grounding disc 4
Penetrate shape T-slot floral disc), 1# pressurized strut 5,2# pressurized strut 6,3# pressurized strut 7,4# pressurized strut 8,5# pressurized strut 9,6# pressurized strut 10,
7# pressurized strut 11, loading disc 12, test bracket beam 13, rack beams moving guide rail 14.Wherein 1# pressurized strut 5,2# pressurized strut 6,3#
Pressurized strut 7,4# pressurized strut 8 are vertical pressurized strut, are arranged in the vertical direction.5# pressurized strut 9,6# pressurized strut 10,7# pressurized strut
11 be horizontal pressurized strut, is arranged in the horizontal direction.Tested casing 1 is fixed on by lower group section 34 on grounding disc, by upper
Group section is connect with loading disc 12.Loading disc 12, tested casing 1, lower group section 3, passes through spiral shell between grounding disc 4 at upper group section 2
The connection such as bolt.Test bracket beam 13 can move on guide rail 14, and 5# -7# pressurized strut 9,10,11 can be moved up in test bracket beam 13
It is dynamic.
As shown in figure 5, each pressurized strut has substantially the same structure comprising pedestal 27, cylinder 28, force snesor
29, pressurized strut extended segment 30, threaded adapter 31.Adapter has screw thread at the top of pressurized strut, convenient to connect with other structures
It connects.It is connect on the basis of pedestal 27 can be supported directly on or with rack beams 13.Cylinder 28 and pedestal 27 cooperate, and are hydraulically operated.
30 force sensor 29 of pressurized strut extended segment upwardly extends, and force snesor 29 can be set to a part of cylinder 28, for detecting
The power of pressurized strut output.The upper end connecting adapter 31 of pressurized strut extended segment 30.
1# -4# pressurized strut 5,6,7,9 is connect by its extended segment 30 with loading disc 12, and 5# -7# pressurized strut 9,10,11 is logical
Its extended segment is crossed to connect with loading disc 12.
As shown in Figure 1, coordinate origin is the center of loading disc 12, X-axis is that casing is vertically positive direction outward, and Y-axis is machine
Casket is laterally positive direction to the right, and Z axis is that casing is positive axially upwards.
As described in Fig. 3, Fig. 4, Fig. 6,1# pressurized strut and loading disc link bolt hole 15,2# are provided on loading disc 12
Pressurized strut is connect with loading disc link bolt hole 16,3# pressurized strut with loading disc link bolt hole 17,4# pressurized strut with loading disc
Bolt hole 18,5# pressurized strut load auricle 19,6 pressurized struts load auricle 20,7# pressurized strut load auricle 21,5# pressurized strut and add
It carries auricle link bolt hole 22,6# pressurized strut and connect bolt with load auricle link bolt hole 23,7# pressurized strut with load auricle
Hole 24, loading disc hole for hoist 25, group section and loading disc link bolt hole 26.Hole for hoist 25 is additionally provided on loading disc 12, side
Just it lifts.In order to guarantee the correctness of axial push-pull rigidity and the load of bending stiffness load, 5,6,7,8 edge of 1# -4# pressurized strut adds
Load plate 12 is uniformly and symmetrically distributed, for example 1#, 3# pressurized strut 5,7 is in Y-axis and symmetrical, and 2#, 4# pressurized strut 6,8 is in Y-axis
And it is symmetrical.Loaded load position when in order to guarantee torsion stiffness and lateral (vertical) rigidity test is in loading disc 12
The loading effect face in the center of circle, three load auricles 20,21,19 is in loading disc 12 diametrically, and 5# and 7# pressurized strut 9,11
In Y-axis and symmetrical, 6# pressurized strut 10 is in the center location of loading disc 12.The design of pressurized strut side is only needed to have in this way
Test bracket beam, and the depth of parallelism of two pressurized struts is easy to be consistent.
With reference to the accompanying drawing to casing stiffness test load be that realization process is briefly described:
Casing Z-direction (axial direction) tension and compression rigidity loading procedure are as follows: 1#, 2#, 3#, 4# pressurized strut carry out Z-direction (axial direction) drawing simultaneously
It stretches or compresses, apply the stretching or compressive load of Z-direction, the magnitude of load that four pressurized struts apply is identical.
Casing X is to (vertical) tension and compression rigidity loading procedure are as follows: 6# pressurized strut carries out X to (vertical) stretching or compression, applies X
To stretching or compressive load.If carrying out Y-direction (lateral) rigidity test, casing can be rotated or 90 ° of loading disc are added
It carries and tests.
1# pressurized strut 5,2# pressurized strut 6,3# pressurized strut 7,4# pressurized strut 8,5# pressurized strut 9,6# pressurized strut 10,7# pressurized strut
11
Casing X is to (vertical) bending stiffness loading procedure are as follows: symmetrical two pressurized strut 1# and 3# are carried out respectively along axial direction
It stretches and compresses, for example 1# pressurized strut applies tensile load, 3# pressurized strut applies compressive load, or exchanges.In order to protect
Card be applied to casing tensile load and compressive load it is equal, the power for carrying out the pressurized strut of tensile load need plus loading disc and
The gravity of pressurized strut, the power for carrying out the pressurized strut of compressive load need to subtract the gravity of loading disc and pressurized strut.
Casing Y-direction (lateral) bending stiffness loading procedure are as follows: symmetrical two pressurized strut 2# and 4# are carried out respectively along axial direction
It stretches and compresses, for example 2# pressurized strut applies tensile load, 4# pressurized strut applies compressive load, or exchanges, and load is big
It is small equal.In order to guarantee that the tensile load for being applied to casing and compressive load are equal, the power for carrying out the pressurized strut of tensile load is needed
The gravity of loading disc and pressurized strut is added, the power for carrying out the pressurized strut of compressive load needs to subtract the weight of loading disc and pressurized strut
Power.
Casing Z-direction (axial direction) torsion stiffness loading procedure are as follows: symmetrical two pressurized strut 5# and 7# distinguish along X to (lateral)
It is stretched and is compressed, for example 5# pressurized strut applies tensile load, 7# pressurized strut applies compressive load, or exchanges, two
The magnitude of load that a pressurized strut applies is identical.
Although the present invention is disclosed as above with preferred embodiment, it is not for limiting the present invention, any this field skill
Art personnel without departing from the spirit and scope of the present invention, can make possible variation and modification.Therefore, it is all without departing from
The content of technical solution of the present invention, according to the technical essence of the invention any modification to the above embodiments, equivalent variations
And modification, it each falls within the protection scope that the claims in the present invention are defined.
Claims (7)
1. turbogenerator casing stiffness test secondary load device characterized by comprising
Loading disc has the load center being coaxially arranged with tested casing；
Upper group section, the upper end connects the loading disc, and lower end with the upper end of tested casing for connecting；
Lower group section, the upper end are used to connect the lower end of tested casing；
Grounding disc is connect for being fixed on basis, and with the lower end of lower group section；
Multiple vertical pressurized struts, are arranged in the vertical direction, and one end is connected on the Vertical loading point of the loading disc,
The Vertical loading point is symmetrical centered on the load center；
Multiple horizontal pressurized struts, are arranged in the horizontal direction, and one end is connected on the point of the horizontal addload on loading disc, institute
It states horizontal addload point to be arranged in the diametrical direction of the loading disc, and a horizontal addload point is located at the load center,
Remaining horizontal addload point is symmetrical centered on the load center；And
Rack beams, for installing the horizontal pressurized strut.
2. turbogenerator casing stiffness test secondary load device as described in claim 1, which is characterized in that add described
It is respectively disposed with the Vertical loading point centered on the load center in orthogonal two diametrical directions of load plate, is used for
It is connect with the vertical pressurized strut.
3. turbogenerator casing stiffness test secondary load device as described in claim 1, which is characterized in that the bracket
Beam is mounted on guide rail, horizontally moveable adjustment position.
4. turbogenerator casing stiffness test secondary load device as described in claim 1, which is characterized in that described vertical
Pressurized strut includes threaded adapter, and the hole that the adapter passes through at the Vertical loading point is fixed by nuts.
5. turbogenerator casing stiffness test secondary load device as described in claim 1, which is characterized in that the level
Pressurized strut includes threaded adapter, and load auricle, the adapter and the load are provided at the horizontal addload point
Auricle connection.
6. turbogenerator casing stiffness test secondary load device as described in claim 1, which is characterized in that described vertical
Pressurized strut or the horizontal pressurized strut include pedestal, the cylinder being connect with pedestal, the force snesor for being connected to cylinder upper end, from power
The pressurized strut extended segment upwardly extended on sensor, the threaded adapter being connected on pressurized strut extended segment.
7. turbogenerator casing stiffness test secondary load device as described in claim 1, which is characterized in that curved in progress
When stiffness test load, in order to guarantee that the tensile load for being applied to casing and compressive load are equal, the perpendicular of tensile load is carried out
The power of straight pressurized strut needs the gravity plus loading disc and vertical pressurized strut, carries out the power needs of the vertical pressurized strut of compressive load
Subtract the gravity of loading disc and vertical pressurized strut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810089471.2A CN110095240B (en) | 2018-01-30 | 2018-01-30 | Auxiliary loading device for rigidity test of turbine engine case |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810089471.2A CN110095240B (en) | 2018-01-30 | 2018-01-30 | Auxiliary loading device for rigidity test of turbine engine case |
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| CN110095240A true CN110095240A (en) | 2019-08-06 |
| CN110095240B CN110095240B (en) | 2020-12-15 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110514428A (en) * | 2019-09-24 | 2019-11-29 | 中国人民解放军空军工程大学 | A kind of bilateral loading platform for aviation connection structure testpieces |
| CN111157250A (en) * | 2020-01-06 | 2020-05-15 | 中国航发沈阳发动机研究所 | Stress application barrel structure strength tester for axisymmetric thrust vector complex load |
| CN112798437A (en) * | 2020-12-28 | 2021-05-14 | 中国航发沈阳发动机研究所 | Intermediate casing test load loading device |
| CN112945533A (en) * | 2021-02-06 | 2021-06-11 | 中国航发沈阳发动机研究所 | Combined loading device and method for aeroengine parts |
| CN112985787A (en) * | 2021-02-01 | 2021-06-18 | 中国航发沈阳发动机研究所 | Card installing mechanism for high-temperature test of case |
| CN113063666A (en) * | 2021-04-01 | 2021-07-02 | 中国航发常州兰翔机械有限责任公司 | Aeroengine casing pressure test tool and using method thereof |
| CN115266347A (en) * | 2022-07-27 | 2022-11-01 | 中国航发沈阳发动机研究所 | Static strength test device for turbine rear case of aircraft engine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110514428A (en) * | 2019-09-24 | 2019-11-29 | 中国人民解放军空军工程大学 | A kind of bilateral loading platform for aviation connection structure testpieces |
| CN110514428B (en) * | 2019-09-24 | 2021-03-26 | 中国人民解放军空军工程大学 | Bidirectional loading test platform for aviation connection structure test piece |
| CN111157250A (en) * | 2020-01-06 | 2020-05-15 | 中国航发沈阳发动机研究所 | Stress application barrel structure strength tester for axisymmetric thrust vector complex load |
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| CN112985787A (en) * | 2021-02-01 | 2021-06-18 | 中国航发沈阳发动机研究所 | Card installing mechanism for high-temperature test of case |
| CN112945533A (en) * | 2021-02-06 | 2021-06-11 | 中国航发沈阳发动机研究所 | Combined loading device and method for aeroengine parts |
| CN113063666A (en) * | 2021-04-01 | 2021-07-02 | 中国航发常州兰翔机械有限责任公司 | Aeroengine casing pressure test tool and using method thereof |
| CN113063666B (en) * | 2021-04-01 | 2023-02-10 | 中国航发常州兰翔机械有限责任公司 | Aeroengine casing pressure test tool and using method thereof |
| CN115266347A (en) * | 2022-07-27 | 2022-11-01 | 中国航发沈阳发动机研究所 | Static strength test device for turbine rear case of aircraft engine |
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