CN101368874A - Testing device for implementing main torque and vibrating torque to high speed rotary main shaft - Google Patents
Testing device for implementing main torque and vibrating torque to high speed rotary main shaft Download PDFInfo
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- CN101368874A CN101368874A CNA2008100461676A CN200810046167A CN101368874A CN 101368874 A CN101368874 A CN 101368874A CN A2008100461676 A CNA2008100461676 A CN A2008100461676A CN 200810046167 A CN200810046167 A CN 200810046167A CN 101368874 A CN101368874 A CN 101368874A
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Abstract
The invention discloses an intensity test device which enables the main torque and the vibration torque of a high-speed rotary spindle to be loaded; the test device mainly structurally comprises a device rack, a main torsion beam and a reverse torsion beam which are fixedly connected with the rotary spindle arranged on the rack, at least a pair of main torsional actuating cylinder mechanisms with the bearing end fixed on the device rack and the action force of the mobile end twisted with the torsion beams forming the main torsional couple, at least a pair of vibration actuating cylinder mechanisms with the action force forming the vibration torsional couple, at least a pair of elastic reverse torsional actuating mechanisms with the reverse action force forming the reverse torsional couple, as well as a hydraulic servo system which controls the movement of the actuating cylinder mechanisms. The invention breaks through the torque load mode of the high-speed rotary spindle test device in the prior art and can completely and really simulate the main torque and vibration torque load borne by the high-speed rotary spindle during the running process so as to solve the problem of difficult composite load of the main torque and the vibration torque. The invention also has the advantages of high load accuracy, low manufacturing cost, small maintenance workload and long service life.
Description
Technical field
The present invention relates to a kind of device that the high speed rotary main shaft is made a strength test, particularly relate to and a kind ofly can implement main moment of torsion simultaneously and the vibration torque load is determined the strength test device in rotating shaft life-span the high speed rotary main shaft.
Background technology
The rotary main shaft of high speed such as turbine engine, steam turbine rotary machine is the of paramount importance parts of this class machinery, in servicely bear very big multiple load, as shown in Figure 3, bear moment M u, main moment of torsion Mk, load such as vibration moment of torsion △ Mk, axial force P, again by being distributed with step and the concentrated position of hole equal stress that much is easy to generate crackle thereon, in case fatal off-axis consequence just may take place in generation crackle in service, causes the serious accident of personal injury and property heavy losses.Owing on the engine run stand, can not simulate operating gyroscopic couple of turboshaft and motor-driven moment of flexure, therefore ground run can't be simulated turbine spindle actual motion load, and adopt actual motion to carry out durability test, not only cost is huge, and greatly dangerous.Therefore build the test unit of the various load of can the comprehensive simulated turboshaft under the actual motion state, being born, become a key that solves axle class fault.In the load such as the moment M u that in engine turbine axle operational process, bears, main moment of torsion Mk, vibration moment of torsion △ Mk, axial force P, wherein vibrate relatively difficulty of torque load △ Mk simulation, construction can be simulated the test unit of the vibration torque load △ Mk that turboshaft born under the actual motion state, be the urgency key subjects to be solved that affiliated field technology worker faces jointly.
Britain R.R company has researched and developed out a kind of high speed rotary main axe intensity test unit, in the hope of solving the problem that the vibration torque load △ Mk that the high speed rotary main shaft is born carries out simulation test.The structure of this test unit is shown in accompanying drawing 4 and accompanying drawing 5.The simulation test mechanism of device, its main moment of torsion and anti-torque system all adopt the couple (hydraulic actuator mechanism i.e. cylinder plug mechanism for being made up of piston and piston cylinder) that partners of the hydraulic actuator mechanism by electromagnetic hydraulic pressure servo-valve control, the vibration moment of torsion then adopts an eccentric disturbing force by the hydraulic actuator mechanism generation of electromagnetic hydraulic pressure servo-valve control to be constituted, and the simulation test mechanism of device is arranged in the apparatus housing that is made of base, cylindrical shell and top cover.But this device can not solve the vibration torque load △ Mk problem that simulation high speed rotary main shaft is born well.This be because, it is reactive torque that anti-torque system adopts the couple that partners of the hydraulic actuator mechanism by the control of electromagnetic hydraulic pressure servo-valve, after 2 masters turn round hydraulic actuator mechanism rotary main shaft have implemented main moment of torsion to test, 2 hydraulic actuators that constitute anti-torque system just become a system that rigidity is very strong, at this moment can only apply positive+△ Mk torque load to the test rotary main shaft, and can not apply negative-△ Mk torque load, if turn round pressurized strut to rotary main shaft and apply just unusual difficulty of vibration torque load △ Mk this moment by shaking, the amplitude and the vibration frequency that mainly are the vibration moment of torsion can not reach high speed rotary main shaft test demand, promptly can not finely apply vibration torque load △ Mk to the test rotary main shaft effectively.As realizing the test rotary main shaft is applied vibration torque load △ Mk, then whole anti-torque system need be an elastic system, if design routinely, the structure of this device will be very complicated so.Therefore, the high speed rotary main axe intensity test unit that Britain R.R company researchs and develops out, because its anti-system of turning round is not designed to elastic system, in fact do not have the fine analog intensity test problem of the high speed rotary main shaft being implemented simultaneously main moment of torsion and vibration torque load that solves effectively.
Summary of the invention
The present invention is directed to the deficiency that the high speed rotary main axe intensity test unit of prior art exists and the test unit that can implement main moment of torsion and vibration torque load to the high speed rotary main shaft simultaneously that provides, be intended to solve the test unit of prior art and can not finely realize main moment of torsion and vibration moment of torsion compound loading problem to the high speed rotary main shaft effectively, can not finely simulate main torque load and vibration torque load that the high speed rotary main shaft bears in operational process effectively simultaneously, next solves the problems such as test unit complex structure, manufacturing cost height, failure rate height of prior art.
The technical matters that the present invention is intended to solve, can realize by the high speed rotary main axe intensity test unit with following technical scheme:
A kind of test unit that can implement main moment of torsion and vibration moment of torsion to the high speed rotary main shaft simultaneously, mainly comprise the device frame, turn round arm and the anti-arm of turning round with the master of rack-mounted rotary main shaft fixed connection, supported end be fixed on the device frame and tache motorice with turn round that acting force that arm connects for hinge constitutes main torsional couple at least one pair of lead and turn round pressurized strut mechanism, acting force constitutes at least one pair of vibration pressurized strut mechanism of vibration torsional couple and at least one pair of anti-actuation mechanism of turning round that reacting force constitutes anti-torsional couple, and the Hydrauservo System of control pressurized strut mechanism kinematic, the said anti-actuation mechanism of turning round is the anti-actuation mechanism of turning round of elasticity.
In above-mentioned strength test device technical scheme, the anti-actuation mechanism of turning round of said elasticity can be the anti-actuation mechanism of turning round of elasticity that is made of the pneumatic elasticity member, also can be the anti-actuation mechanism of turning round of elasticity that is made of reaction spring.The anti-actuation mechanism of turning round of elasticity of a kind of structure in back, it is simple in structure, implements easily, the preferential anti-actuation mechanism of turning round of elasticity that adopts a kind of structure in back.The anti-actuation mechanism of turning round of reaction spring elasticity can be the anti-actuation mechanism of turning round of elasticity that is made of the column type reaction spring, also can be the anti-actuation mechanism of turning round of elasticity that the reaction spring by other structures constitutes, preferentially adopt the anti-actuation mechanism of turning round of column type reaction spring elasticity.
The anti-actuation mechanism of turning round of said column type reaction spring elasticity, its structure can be designed to mainly to comprise mechanism's frame, column type reaction spring and reaction spring is placed in two spring bases in mechanism's frame, turns round the spring base that the arm effect connects an end and can move axially with respect to mechanism's frame with counter in two spring bases.Said column type reaction spring is preferably designed as two, and one is the big big spring of spring steel wire bulky spring diameter, and one is the little little spring of spring steel wire hairspring diameter, and big spring is nested with outside little spring.Said mechanism frame can be designed to, comprise that the end designs threaded rack construction screw rod, seat board and cover plate, the installation threaded hole that design has spring base and mates with rack construction screw rod end thread on the seat board, on the cover plate design have fluid spring seat axle journal can be within it in axial sliding mounting hole and with rack construction screw rod installation holes for matching, the rack construction screw rod passes mounting hole on the cover plate and the installation threaded hole spiral marking connection on the seat board, and assembling forms mechanism's frame.Certainly also can be designed to other versions, as replace the tubular frame form of rack construction screw rod with cylindrical shell.Constitute the cover plate of mechanism's frame, an assembling neck bush can be set in its axle journal mounting hole, fluid spring seat axle journal is installed in the cover plate mounting hole by the assembling neck bush, and Design and Machining has oilway on the neck bush.Constitute the seat board of mechanism's frame, the installation threaded hole that itself and rack construction screw rod end thread are mated is preferably through hole, so that the reacting force of reaction spring is adjusted.
In the technical scheme of above-mentioned described test unit, said master turns round pressurized strut mechanism, vibration pressurized strut mechanism and the anti-actuation mechanism of turning round and preferably is symmetrically arranged 2, and 2 vibration pressurized strut mechanisms and 2 anti-actuation mechanism of turning round connect with the same anti-arm hinge of turning round respectively.
In above-mentioned test unit technical scheme, said device frame is a planer type structure, constitute by pedestal, two wall formula columns and crossbeam, main turn round pressurized strut mechanism, shake and turn round pressurized strut mechanism and the counter supported end of turning round actuation mechanism is fixedly mounted on the column, tested revolving shaft vertically is installed on the pedestal.
In above-mentioned test unit technical scheme, said test unit also is provided with bending moment loading mechanism and axial force load maintainer, and bending moment loading mechanism connects with the revolving shaft test block by moment of flexure loading axle, the direct and revolving shaft test block connection of axial force load maintainer.
The present invention has also taked some other technical measures.
The strength test device that can implement main moment of torsion and vibration torque load to the high speed rotary main shaft simultaneously provided by the invention, its course of work principle is: the master of symmetrical placement on the device frame turns round pressurized strut mechanism, under Hydrauservo System control, move, produce a pair of couple, this couple is by being fixed in master on the test high speed rotary main shaft and turning round arm and the anti-arm of turning round affacting that elasticity is counter to be turned round on the actuation mechanism, the elastic component of the anti-torsional elasticity of formation mechanism is compressed, thereby make the anti-mechanism of turning round of symmetrically arranged elasticity produce a pair of reverse couple, and then turn round arm and the anti-arm of turning round applies as shown in Figure 3 main moment of torsion Mk to high speed rotary main shaft test block by main.When the pressurized strut of symmetrically arranged vibration moment of torsion under Hydrauservo System control with certain frequency (generally not being higher than 15Hz) and amplitude (being △ Mk) when applying the dither couple, because the anti-actuation mechanism of turning round has elasticity, thereby make the anti-arm of turning round produce dither, vibration pressurized strut and the anti-dither moment of torsion that forms between the actuation mechanism of turning round are applied on the high speed rotary main shaft test block, promptly high speed rotary main shaft test block has been applied the dither moment of torsion, just on the basis that high speed rotary main shaft test block has been applied main moment of torsion, superposeed again and implemented the dither moment of torsion by the anti-arm of turning round.The motion-promotion force that master in the test unit turns round pressurized strut and the pressurized strut of vibration moment of torsion all is to be provided by the control of electromagnetic hydraulic pressure servo-valve by the pressure oil that Hydraulic Station provides.
The present invention is with the counter elastic system of turning round system design for uniqueness of high speed rotary main shaft test unit, the moment of torsion of having broken through the high speed rotary main shaft test unit of prior art loads traditional mode, successfully solved high speed rotary main shaft test specimen has been implemented the technical barrier that integrated torque loads, make that test unit can be complete, simulate main torque load and dither torque load that high speed rotary main shaft operational process bears truly, and the test unit torque load loads the accuracy height, can satisfy the requirement of high speed rotary main-shaft torque torture test fully, realization high speed rotary main shaft just can be determined the test objective in life-span on test unit, advanced the technical progress of high speed rotary shaft experiment device.In addition, on the basis of high speed rotary main shaft test unit provided by the invention, set up bending moment loading mechanism and axial force load maintainer again, test unit just can be simulated the various load of being born under the high speed rotary main shaft running status fully truly, and the various load of being born under the high speed rotary main shaft running status are carried out comprehensive test.
The strength test device that can implement main moment of torsion and vibration moment of torsion to the high speed rotary main shaft provided by the invention, compare with the high speed rotary main shaft test unit of prior art, except top said the present invention can implement main moment of torsion and vibration moment of torsion simultaneously to the high speed rotary main shaft, simulate fully, truly outside the integrated torque load that high speed rotary main shaft operational process bears, summarize and get up also to have following technical advantage and good effect:
1, low cost of manufacture.The counter manufacturing cost of turning round actuation mechanism of elasticity of the present invention reduces greatly than the counter manufacturing cost of turning round pressurized strut mechanism by the control of electromagnetic hydraulic pressure servo-valve, and its manufacturing cost one cover only needs thousands of units, is less than 5-6 ten thousand yuan of latter's manufacturing cost far away.In addition, device frame of the present invention, its structure is the frame of test unit compared to prior art, and structure is more simple, and it is also more easy to make, and manufacturing cost is also more low, low cost of manufacture promptly of the present invention.
2, long service life.Constitute the counter reaction spring of turning round actuation mechanism of elasticity of the present invention and adopt the manufacturing of high-quality steel, durability is extremely strong, and almost not wearing and tearing in use, so long service life, the inventor is in the trial-manufacturing process of device, tens of axles to a model are tested, and do not change spring member.And the anti-system of turning round of employing pressurized strut and electromagnetic hydraulic pressure servo valve technology, its failure rate is very high, main cause is pressurized strut serious wear in high frequency to-and-fro movement process, fragile, because the principle design defect makes the electromagnetic hydraulic pressure servo-valve be in irrational duty, very easily cause damage in addition, in case change, then need to expend tens thousand of units.
3, maintenance load is little.The anti-actuation mechanism of turning round of elasticity of the present invention needs to keep in repair in process of the test hardly; can guarantee the schedule requirement of Stromeyer test; adopt the anti-system of turning round of pressurized strut and electromagnetic hydraulic pressure servo valve technology then often to need shutdown maintenance; requirement that can't the warranty test progress more is difficult to axle is in batches carried out large-scale Stromeyer test.
4, loading accuracy height.Constitute the counter reaction spring of turning round the actuation mechanism elastic component of the present invention and adopt the manufacturing of high-quality steel, have good mechanics and repeat performance, with precision be that 0.1% pull pressure sensor is used, the moment of torsion loading accuracy is reached more than 2%.And adopt the anti-system loads precision of turning round of pressurized strut and electromagnetic hydraulic pressure servo valve technology can only reach 5%.
5, adapt to the needed big load of torture test, many cyclic tests demand.A high speed rotary main shaft is carried out fatigue life test, generally need carry out 10
4Inferior low circulation and 10
7Inferior high circulation, as carrying out test in 12 hours every day, under the trouble-free substantially situation of test unit, the test of finishing an axle needs one month time approximately.The present invention is because of long service life, and the workload of maintenance of equipment is little, so can adapt to the demand of axle torture test in batches.And the counter test unit of turning round system of employing pressurized strut and electromagnetic hydraulic pressure servo valve technology owing to failure rate height, maintenance difficult, carries out the time of the minimum needs of torture test more than three months of an axle.Therefore the investigation test of a small amount of axle can only be carried out, the fatigue life test demand of axle in batches can not be satisfied.
6, the utilization factor height of test unit.Because the present invention has above-mentioned multinomial superior function, makes that the utilization factor of test unit is very high, can carry out torture test in batches to the high speed rotary main shaft.The inventor once carried out the Stromeyer test of batch axle to the engine turbine axle of several models with test unit of the present invention, and adopting the counter test unit of turning round system of pressurized strut and electromagnetic hydraulic pressure servo valve technology only to carry out very few quantity research test, plant factor is extremely low.
Description of drawings
Fig. 1 is a general structure synoptic diagram of the present invention.
Fig. 2 is the anti-actuation mechanism synoptic diagram of turning round of elasticity of the present invention.
Fig. 3 is an engine turbine axle Stromeyer test load spectrogram.
Fig. 4 is the contour structures synoptic diagram of the test unit of prior art.
Fig. 5 is the theory structure synoptic diagram of the test unit of prior art.
In above-mentioned accompanying drawing, the sign object that each figure knows label is: 1 device frame; 2 bending moment loading mechanisms; 3 moments of flexure load axle; The 4 main pressurized strut mechanisms of turning round; 6 vibration moment of torsion pressurized strut mechanisms; The anti-actuation mechanism of turning round of 6 elasticity; The 7 main arms of turning round; 8 high speed rotary main shaft testpieces; The 9 anti-arms of turning round; 10 axial force load maintainers; 11 seat boards; 12 counter-force big springs; 13 counter-force little springs; 14 rack construction screw rods; 15 fluid spring seats; 16 cover plates, 17 oilways.
Embodiment
Provide embodiments of the invention below in conjunction with description of drawings, and the present invention is further illustrated by embodiment, so that understand the present invention more easily.But it needs to be noted; the specific embodiment of the present invention is not limited to the described form of following embodiment; the those skilled in the art is under the situation of not paying creative work; also can design other embodiment at an easy rate; therefore the embodiment of embodiment given below should be interpreted as protection scope of the present invention, protection scope of the present invention is limited in given embodiment.
Embodiment 1
The test unit that can implement main moment of torsion and vibration moment of torsion to the high speed rotary main shaft that present embodiment provides, its structure is as shown in accompanying drawing 1, by device frame 1, the main arm 7 of turning round, 2 masters that the anti-arm 9 of turning round, acting force constitute main torsional couple turn round pressurized strut mechanism 4, and acting force constitutes 2 vibration pressurized strut mechanisms 5 of vibration torsional couple, reacting force constitutes the anti-actuation mechanism 6 of turning round of 2 springs of anti-torsional couple, and the Hydrauservo System of controlling 4 pressurized strut mechanisms respectively by 4 electromagnetic hydraulic pressure servo-valves constitutes.2 masters turn round the anti-actuation mechanism of turning round of pressurized strut mechanism, 2 vibration pressurized strut mechanisms and 2 springs and are and are symmetrical arranged.Device frame 1 is a planer type structure, constitute by pedestal, two wall formula columns and crossbeam, main arm 7 and anti-arm 9 and rotary main shaft 8 fixed connections that are vertically mounted on the device frame base turned round turned round, 2 masters turn round pressurized strut mechanism, 2 vibration pressurized strut mechanisms and 2 counter supported ends of turning round actuation mechanism of spring and are individually fixed on two wall formula columns of device frame 1,2 masters turn round pressurized strut motion of mechanism end and connect with the main arm hinge of turning round, and 2 vibration pressurized strut mechanisms and 2 counter tache motorices of turning round actuation mechanism of spring all connect with the anti-arm hinge of turning round.The structure that described spring is counter turns round actuation mechanism as shown in Figure 2, constitute by mechanism's frame, column type reaction spring and two spring bases that reaction spring is placed in mechanism's frame, turn round the spring base 15 that the arm effect connects an end and can move axially with counter in two spring bases with respect to mechanism's frame, the column type reaction spring has two, one is the big big spring 12 of spring steel wire bulky spring diameter, one is the little little spring 13 of spring steel wire hairspring diameter, and big spring is nested with outside little spring.Said mechanism frame designs threaded rack construction screw rod 14 by 4 radicles, seat board 11 and cover plate 16 constitute, Design and Machining has two spring bases that big or small two springs are installed on the seat board, connect threaded hole with 4 installations with rack construction screw rod end thread coupling, cover plate 16 central design have fluid spring seat axle journal mounting hole, with with 4 mounting holes of rack construction screw rod coupling, fluid spring seat axle journal is by in the neck bush installation mounting hole on the cover board, fluid spring seat axle journal can endwisely slip in neck bush, cover plate and neck bush Design and Machining have the oilway 17 that communicates, the rack construction screw rod passes the installation threaded hole spiral marking connection that connects on mounting hole on the cover plate and the seat board, and assembling forms mechanism's frame.
Embodiment 2
The test unit that can implement main moment of torsion and vibration moment of torsion to the high speed rotary main shaft that present embodiment provides, structure as shown in Figures 1 and 2, its formation is substantially the same manner as Example 1, different is, test unit has been set up bending moment loading mechanism 2 and axial force load maintainer 10 on the basis of embodiment 1, bending moment loading mechanism loads axle 3 by moment of flexure and connects with the revolving shaft test block, and the axial force load maintainer directly acts on the revolving shaft test block.Other structures are all identical with embodiment 1.The test unit of present embodiment, the main torque load and dither load that under can simulating high speed rotary main shaft running status fully truly, is born, also can simulate bending load and axial load, can carry out comprehensive test the various load of being born under the high speed rotary main shaft running status.
Claims (10)
1. can implement main moment of torsion and the test unit that vibrates moment of torsion to the high speed rotary main shaft for one kind, mainly comprise the device frame, turn round arm and the anti-arm of turning round with the master of rack-mounted rotary main shaft fixed connection, supported end be fixed on the device frame and tache motorice with turn round that acting force that arm connects for hinge constitutes main torsional couple at least one pair of lead and turn round pressurized strut mechanism, acting force constitutes at least one pair of vibration pressurized strut mechanism of vibration torsional couple and at least one pair of anti-actuation mechanism of turning round that reacting force constitutes anti-torsional couple, and the Hydrauservo System of control pressurized strut mechanism kinematic, it is characterized in that the said anti-actuation mechanism of turning round is the anti-actuation mechanism of turning round of elasticity.
2. the test unit that can implement main moment of torsion and vibration moment of torsion to the high speed rotary main shaft according to claim 1 is characterized in that anti-elasticity counter the turn round actuation mechanism of actuation mechanism for being made of reaction spring of turning round of said elasticity.
3. the test unit that can implement main moment of torsion and vibration moment of torsion to the high speed rotary main shaft according to claim 2 is characterized in that anti-elasticity counter the turn round actuation mechanism of actuation mechanism for being made of the column type reaction spring of turning round of said elasticity.
4. the test unit that can implement main moment of torsion and vibration moment of torsion to the high speed rotary main shaft according to claim 3, it is characterized in that the anti-actuation mechanism of turning round of said elasticity mainly comprises mechanism's frame, column type reaction spring and reaction spring is placed in two spring bases in mechanism's frame, turn round the spring base that the arm effect connects an end and can move axially with counter in two spring bases with respect to mechanism's frame.
5. the test unit that can implement main moment of torsion and vibration moment of torsion to the high speed rotary main shaft according to claim 4, it is characterized in that said column type reaction spring has two, the big spring that spring steel wire bulky spring diameter is big is nested with outside the little little spring of spring steel wire hairspring diameter.
6. the test unit that can implement main moment of torsion and vibration moment of torsion to the high speed rotary main shaft according to claim 4, it is characterized in that said mechanism frame comprises that the end designs threaded rack construction screw rod, seat board and cover plate, design has spring base and assembles threaded hole with the frame of screw rod end thread coupling on the seat board, on the cover plate design have fluid spring seat axle journal can be within it mounting hole and frame assembly hole in axial sliding, screw rod passes frame assembly hole and the assembling of the frame on the seat board threaded hole spiral marking connection on the cover plate, is assembled into mechanism's frame.
7. the test unit that can implement main moment of torsion and vibration moment of torsion to the high speed rotary main shaft according to claim 6 is characterized in that fluid spring seat axle journal is installed in the cover plate pilot hole by the assembling neck bush, and Design and Machining has oilway on the neck bush.
8. the test unit that can implement main moment of torsion and vibration moment of torsion to the high speed rotary main shaft according to claim 1, it is characterized in that test unit also is provided with bending moment loading mechanism and axial force load maintainer, bending moment loading mechanism connects with the revolving shaft test block by moment of flexure loading axle, the direct and revolving shaft test block connection of axial force load maintainer.
9. according to the described test unit that can implement main moment of torsion and vibration moment of torsion to the high speed rotary main shaft of each claim in the claim 1 to 8, it is characterized in that said master turns round pressurized strut mechanism, vibration pressurized strut mechanism and the anti-actuation mechanism of turning round and is symmetrically arranged 2, vibration pressurized strut mechanism and the anti-actuation mechanism of turning round connect with the same anti-arm hinge of turning round respectively.
10. the test unit that can implement main moment of torsion and vibration moment of torsion to the high speed rotary main shaft according to claim 9, it is characterized in that said device frame is a planer type structure, constitute by pedestal, two wall formula columns and crossbeam, the master turns round pressurized strut mechanism, secondary pressurized strut mechanism and the anti-actuation mechanism supported end of turning round and is fixedly mounted on the column, and tested revolving shaft vertically is installed on the pedestal.
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| CN2008100461676A CN101368874B (en) | 2008-09-26 | 2008-09-26 | Testing device for implementing main torque and vibrating torque to high speed rotary main shaft |
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| CN2008100461676A CN101368874B (en) | 2008-09-26 | 2008-09-26 | Testing device for implementing main torque and vibrating torque to high speed rotary main shaft |
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| CN101368874B CN101368874B (en) | 2011-02-16 |
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| CN105352732A (en) * | 2015-12-08 | 2016-02-24 | 中国飞机强度研究所 | Aeroengine fan shaft composite static force and fatigue tester |
| CN105352732B (en) * | 2015-12-08 | 2018-11-13 | 中国飞机强度研究所 | A kind of compound static(al) and fatigue tester of aerial engine fan axis |
| CN110895194A (en) * | 2019-11-07 | 2020-03-20 | 天津航天瑞莱科技有限公司 | Engine shafting rigidity simulation and loading precision control device |
| CN112880993A (en) * | 2021-01-18 | 2021-06-01 | 中国航发沈阳发动机研究所 | Loading device and method for static force and fatigue test load of main shaft of aircraft engine |
| CN113820125A (en) * | 2021-10-13 | 2021-12-21 | 中国航发沈阳发动机研究所 | Torque loading device for test of star-shaped transmission gear box |
| CN113820125B (en) * | 2021-10-13 | 2023-11-28 | 中国航发沈阳发动机研究所 | Torque loading device for star-shaped transmission gear box test |
| CN115235767A (en) * | 2022-07-26 | 2022-10-25 | 中国航发沈阳发动机研究所 | Fulcrum fixing device for connecting rod type spindle test |
| CN115235767B (en) * | 2022-07-26 | 2023-04-07 | 中国航发沈阳发动机研究所 | Fulcrum fixing device for connecting rod type spindle test |
| CN115575114A (en) * | 2022-12-09 | 2023-01-06 | 溧阳市新力机械铸造有限公司 | Strength detection device of motor shaft casting |
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