CN102410929A - Active-control hydraulic type rub-impact fault detection test apparatus - Google Patents
Active-control hydraulic type rub-impact fault detection test apparatus Download PDFInfo
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- CN102410929A CN102410929A CN2011103346262A CN201110334626A CN102410929A CN 102410929 A CN102410929 A CN 102410929A CN 2011103346262 A CN2011103346262 A CN 2011103346262A CN 201110334626 A CN201110334626 A CN 201110334626A CN 102410929 A CN102410929 A CN 102410929A
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- 238000001514 detection method Methods 0.000 title abstract description 4
- 238000012360 testing method Methods 0.000 title abstract description 4
- 239000012530 fluid Substances 0.000 claims description 15
- 239000011888 foil Substances 0.000 claims description 12
- 230000001133 acceleration Effects 0.000 claims description 9
- 230000007306 turnover Effects 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 abstract description 5
- 238000005259 measurement Methods 0.000 abstract description 2
- 239000010720 hydraulic oil Substances 0.000 abstract 2
- 239000003921 oil Substances 0.000 abstract 2
- 230000001276 controlling effect Effects 0.000 description 15
- 238000002474 experimental method Methods 0.000 description 4
- 230000007257 malfunction Effects 0.000 description 4
- 238000004088 simulation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000013456 study Methods 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
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Abstract
The invention discloses an active-control hydraulic type rub-impact fault detection test apparatus. The apparatus is characterized in that: six sets of hydraulic driving systems are arranged on a periphery of a rotor wheel disc; a first hydraulic cylinder and a second hydraulic cylinder are respectively arranged on a vertical direction of the rotor wheel disc; a third hydraulic cylinder and a fourth hydraulic cylinder are arranged on a horizontal direction; a fifth hydraulic cylinder and a sixth hydraulic cylinders are arranged at a positive/negative 45 degree direction of an upper half disc of the rotor wheel disc; the each hydraulic cylinder is provided with a hydraulic oil return tank and a constant voltage tank; inlet and outlet pipelines of the hydraulic oil return tank and the constant voltage tank are respectively provided with an electromagnetic pressure regulating valve and a pressure sensor; an oil pump, a piston connecting rod, an elastic hinge, a strain gauge and a rub-impact column, which are successively connected, are arranged between the oil tank and the constant voltage tank; in order to simulate different rub-impact states, the rub-impact column which is at the positive/negative 45 degree direction is directly contacted with the periphery of the rotor wheel disc. Rub-impact pieces at the horizontal and vertical direction contact with the periphery of the rotor wheel disc. A measurement and control computer can calculate and control a pressure applied by a rub-impact part and a stress state so as to achieve a purpose of simulating and detecting a plurality of rub-impact fault states.
Description
Technical field
The invention belongs to the rotating machinery bump-scrape detection technique, be specifically related to a kind of artificial controlled motion parts and bump the experimental provision that rubs and its effect is measured.
Background technology
Detect for the rotating machinery bump-scrape casualty effect and to have very important practical significance.Special experimental system or device are had for this reason in many correlative studys mechanism.Wherein bump for the mechanical rotor class and rub or device that frictional experiment detects, the general experiment table that is made up of parts such as bumping the nail that rubs, stator snap ring that adopts experimentizes.Through the single malfunction of rubbing of bumping of manual adjustments trip bolt simulation, the adjusting of the degree of rubbing that crashes can only slightly bump and rub, seriously bump single status such as rub does simple qualitative classification.The problem of bringing thus is; The fault degree that rubs of can't crashing carries out actual simulation; Its reason is accurately to control motion and the stressing conditions that respectively bumps the parts that rub in simulation and the test experience process, and therefore existing rotor rubbing experiment detection device is difficult to satisfy actual requirement.
Summary of the invention
Defective to above-mentioned rubbing test device exists the objective of the invention is: the integrated experimental device that provides a kind of ACTIVE CONTROL fluid pressure type to bump to rub fault to take place and measure.
The present invention is achieved through following technical scheme.The ACTIVE CONTROL fluid pressure type bumps the fault detect experimental provision that rubs to have: rotor disk, experimental stand, hydraulic cylinder, piston rod, hydraulic oil-returning jar, constant voltage jar, electromagnetic voltage adjusting valve, pressure transducer, storage tank, oil pump, elastic hinge, bump the post that rubs, bump the sheet that rubs, foil gauge, acceleration transducer and observing and controlling computing machine etc.By hydraulic cylinder, piston rod, hydraulic oil-returning jar, constant voltage jar, electromagnetic voltage adjusting valve, pressure transducer, storage tank, oil pump, elastic hinge and bump the parts that rub and form fluid power system, bump the parts that rub comprise bump rub post with bump the sheet that rubs.Rotor disk places in the experimental stand through rotor main shaft, and the periphery of rotor disk is provided with 6 cover fluid power systems.The rotor disk vertical direction is respectively equipped with first and second hydraulic cylinders; The rotor disk horizontal direction is respectively equipped with third and fourth hydraulic cylinder, is 0 ° with rotor disk central horizontal direction, is respectively equipped with the 5th and the 6th hydraulic cylinder in positive and negative 45 ° of directions of first dish of rotor disk.Each hydraulic cylinder is equipped with hydraulic oil-returning jar and constant voltage jar, and hydraulic oil-returning jar turnover pipeline is provided with the electromagnetic voltage adjusting valve; The turnover pipeline of constant voltage jar is respectively equipped with electromagnetic voltage adjusting valve and pressure transducer.Hydraulic oil-returning jar and storage tank are direct-connected, are connected to oil pump between storage tank and the constant voltage jar.Piston rod through elastic hinge with bump the post that rubs and be connected, elastic hinge and bump to rub and be provided with foil gauge between the post bumps the sheet outer wall that rubs and is provided with acceleration transducer.The signal control line of the oil pump in every cover fluid power system, four electromagnetic voltage adjusting valves, two pressure transducers, foil gauge and acceleration transducers all is connected to observing and controlling computing machine the corresponding interface.Bump the state of rubbing in order to simulate difference, the 5th with the 6th hydraulic cylinder piston connecting rod with bump the post that rubs and be connected; First to fourth hydraulic cylinder piston connecting rod with bump the sheet that rubs and be connected, through hydraulic system and observing and controlling computing machine control bump rub post with bump the sheet that rubs and rotor disk is bumped rub.
In the hydraulic cylinder up and down the hydraulic pressure in two chambeies according to the fault of setting in the experiment of rubbing of bumping, send control signal and executive system action by the pressure transducer collection and reach the observing and controlling computing machine by the observing and controlling computing machine.Combine pressure transducer control and monitoring hydraulic pressure to form closed-loop control through regulating the electromagnetic voltage adjusting valve.Meanwhile, the strain signal that the observing and controlling computing machine is gathered through (elastic hinge and bump and rub between the post) foil gauge is measured to bump and is rubbed post or bump the size of the sheet tangential force of rubbing, and controls and measure motion and the stressing conditions that bumps the parts that rub thus.
The beneficial effect of characteristics of the present invention and generation is:
(1) controls and monitors hydraulic pressure through pressure transducer in the experimental system and closed loop adjustment electromagnetic voltage adjusting valve; Thereby solve and only can realize single problem of bumping the malfunction of rubbing through manual adjustments; Accurately realize the multiple malfunction of rubbing of bumping through the ACTIVE CONTROL system, and reach the effect that the fault degree that rubs is bumped in desirable control.
(2) survey in the hydraulic cylinder hydraulic pressure value in two chambeies up and down according to pressure transducer, and foil gauge reacted bumps the parts that rub (bump and rub post or bump the sheet that rubs) normal pressure with the tangential force value is accurately measured, the realization adjusting of feedback of status of rubbing that crashes.
(3) through hydraulic cylinder piston is exerted pressure up and down, the build-up of pressure difference can solve present augmentor friction and the bigger problem of backlass, realizes that control bumping to rub to take place and measure integrated.Realize the accurate adjusting of ACTIVE CONTROL and motion that the parts that rub are bumped in measurement and situation such as stressed.
Description of drawings
Fig. 1 arranges overall construction drawing for hydraulic cylinder of the present invention.
Fig. 2 is liquid cylinder entity structure of the present invention and measuring system figure.
Embodiment
Below in conjunction with accompanying drawing and through embodiment structure of the present invention is further described.Need to prove that present embodiment is narrative, rather than determinate.
The ACTIVE CONTROL fluid pressure type bumps the fault detect experimental provision that rubs, by hydraulic cylinder, piston rod, hydraulic oil-returning jar, constant voltage jar, electromagnetic voltage adjusting valve, pressure transducer, storage tank, oil pump, elastic hinge and bump the post that rubs and form fluid power system.Its member connection structure is: rotor disk 1 places in the experimental stand 2 through rotor main shaft; The periphery of rotor disk is provided with 6 cover fluid power systems; Specifically: the rotor disk vertical direction is respectively equipped with the first and second hydraulic cylinder 3-1,3-2; The rotor disk horizontal direction is respectively equipped with the third and fourth hydraulic cylinder 3-3,3-4, is 0 ° with rotor disk central horizontal direction, is respectively equipped with the 5th and the 6th hydraulic cylinder 3-5,3-6 (like Fig. 1) in positive and negative 45 ° of directions of first dish of rotor disk.Each hydraulic cylinder is equipped with hydraulic oil-returning jar 4 and constant voltage jar 5, and hydraulic oil-returning jar turnover pipeline is provided with electromagnetic voltage adjusting valve 6; The turnover pipeline of constant voltage jar also is provided with pressure transducer 7 simultaneously except being provided with electromagnetic voltage adjusting valve 6.Hydraulic oil-returning jar and storage tank 8 are direct-connected, are connected to oil pump 9 between storage tank and the constant voltage jar.Piston rod 10 is connected with bumping to rub post 12 or bump the sheet 16 that rubs through elastic hinge 11, and elastic hinge and bump to rub and be provided with foil gauge 13 between the post is used for measuring and bumps the tangential force that post produced of rubbing.The 5th with the 6th hydraulic cylinder 3-5,3-6 piston rod and bump the post that rubs and be connected 12; First to fourth hydraulic cylinder 3-1～3-4 piston rod with bump the sheet 16 that rubs and be connected, bump the sheet outer wall that rubs and be provided with acceleration transducer 14.Bump rub fault through 15 controls of hydraulic system and observing and controlling computing machine bump rub post with bump the sheet that rubs and rotor disk is bumped rub.Therefore the signal control line of the oil pump in every cover fluid power system 9, four electromagnetic voltage adjusting valves 6, two pressure transducer 7 foil gauges 13 and acceleration transducer 14 all is connected to observing and controlling computing machine 15 the corresponding interface (like Fig. 2).
As embodiment, the concrete course of work of the present invention and state are following:
I. bump the preparatory stage of rubbing: oil pump is opened and is regulated the set pressure size through system; Guarantee that inlet and outlet of fuel channel is in proper working order; Through the observing and controlling computing machine each electromagnetic voltage adjusting valve is regulated, make hydraulic cylinder piston up and down the hydraulic pressure in two chambeies reach balance, and bump to rub post or bump the sheet that rubs and do not contact rotor disk, write down each sensor initial value this moment.
II. bump the transition period of rubbing: the parameter that the observing and controlling computing machine is gathered according to pressure transducer and ICP type acceleration transducer; Four electromagnetic voltage adjusting valves are regulated; Make hydraulic cylinder epicoele hydraulic pressure greater than following cavity pressure certain numerical value; Regulate corresponding electromagnetic voltage adjusting valve and make oil inlet pipe and flowline oil pressure reach mobile equilibrium, give more sustained attention each sensor values, can not exceed threshold value separately.
III. stable bumping the stage of rubbing: the observing and controlling computing machine sends control signal can realize that following five kinds are bumped the state of rubbing: (1) single-point bump the state of rubbing (control a certain side impact rub post bump rub); (2) two point bump the state of rubbing (control two side impacts rub post bump rub); (3) part bump the state of rubbing (control a certain bump the sheet that rubs bump rub); (4) complete cycle bump the state of rubbing (control all bump the sheet that rubs bump rub); (5) bump at random the state of rubbing (bump the strategy that rubs at random by what in the observing and controlling computing machine, import in advance, control bump rub sheet with bump the post that rubs bump at random rub).Be in stable bumping when rubbing the stage in the present invention; The observing and controlling computing machine bumps through the control of adjusting electromagnetic voltage adjusting valve and rubs the position and bump the power size of rubbing; Pass through the pressure sensor monitoring piston in hydraulic cylinder hydraulic pressure in two chambeies up and down simultaneously; Feed back to the observing and controlling computing machine in real time, make it can accurately adjust the electromagnetic voltage adjusting valve, reach in-cylinder pressure mobile equilibrium.Meanwhile, the observing and controlling computing machine can calculate the size of bumping the parts that rub (bump and rub post or bump the sheet that the rubs) normal pressure that applies, and controls motion and the stressing conditions that bumps the parts that rub with this; Be in stable bumping when rubbing the stage in the present invention; The foil gauge that sticks on the responsive place of elastic hinge power can be measured and bump the strain that the parts tangential force of rubbing is produced; Measuring bridge is transformed to strain electric signal and is transferred to the ACTIVE CONTROL system through the foil gauge amplifier circuit, reaches simulation and detects multiple purpose of bumping the malfunction of rubbing.
Claims (2)
1. the ACTIVE CONTROL fluid pressure type bumps the fault detect experimental provision that rubs; Have rotor disk, experimental stand, hydraulic cylinder, piston rod, hydraulic oil-returning jar, constant voltage jar, electromagnetic voltage adjusting valve, pressure transducer, storage tank, oil pump, elastic hinge, bump the post that rubs, bump the sheet that rubs, foil gauge, acceleration transducer and observing and controlling computing machine; By hydraulic cylinder, piston rod, hydraulic oil-returning jar, constant voltage jar, electromagnetic voltage adjusting valve, pressure transducer, storage tank, oil pump, elastic hinge and bump the parts that rub and form fluid power system; Bump the parts that rub comprise bump rub post with bump the sheet that rubs; It is characterized in that: rotor disk (1) places in the experimental stand (2) through rotor main shaft; The periphery of rotor disk is provided with 6 cover fluid power systems, and the rotor disk vertical direction is respectively equipped with first and second hydraulic cylinders (3-1,3-2), and the rotor disk horizontal direction is respectively equipped with third and fourth hydraulic cylinder (3-3,3-4); With rotor disk central horizontal direction is 0 °; Positive and negative 45 ° of directions at first dish of rotor disk are respectively equipped with the 5th and the 6th hydraulic cylinder (3-5,3-6), and each hydraulic cylinder is equipped with hydraulic oil-returning jar (4) and constant voltage jar (5), and hydraulic oil-returning jar turnover pipeline is provided with electromagnetic voltage adjusting valve (6); The turnover pipeline of constant voltage jar is respectively equipped with electromagnetic voltage adjusting valve (6) and pressure transducer (7); Hydraulic oil-returning jar and storage tank (8) are direct-connected; Be connected to oil pump (9) between storage tank and the constant voltage jar; Piston rod (10) is connected with bumping the post that rubs (12) or bump the sheet that rubs (16) through elastic hinge (11), elastic hinge and bump to rub and be provided with foil gauge (13) between the post; Bump the sheet that rubs (16) outer wall and be provided with acceleration transducer (14), the signal control line of the oil pump (9) in said every cover fluid power system, four each and every one electromagnetic voltage adjusting valves (6), two pressure transducers (7) foil gauges (13) and acceleration transducer (14) all is connected to observing and controlling computing machine (15) the corresponding interface.
2. bump the fault detect experimental provision that rubs according to the described ACTIVE CONTROL fluid pressure type of claim 1, it is characterized in that the said the 5th is connected (12) with the 6th hydraulic cylinder (3-5,3-6) piston rod with the said post that rubs that bumps; Said first to fourth hydraulic cylinder (3-1～3-4) piston rod is connected with the said sheet that rubs (16) that bumps, through the control of said hydraulic system and observing and controlling computing machine (15) bump rub post with bump the sheet that rubs and rotor disk is bumped rub.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110334626 CN102410929B (en) | 2011-10-28 | 2011-10-28 | Active-control hydraulic type rub-impact fault detection test apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110334626 CN102410929B (en) | 2011-10-28 | 2011-10-28 | Active-control hydraulic type rub-impact fault detection test apparatus |
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| CN102410929A true CN102410929A (en) | 2012-04-11 |
| CN102410929B CN102410929B (en) | 2013-07-31 |
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| CN 201110334626 Expired - Fee Related CN102410929B (en) | 2011-10-28 | 2011-10-28 | Active-control hydraulic type rub-impact fault detection test apparatus |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103528813A (en) * | 2013-10-28 | 2014-01-22 | 东北大学 | Rubbing experimental device of blade-coating machine case |
| CN103759934A (en) * | 2014-01-26 | 2014-04-30 | 清华大学 | Birotor fault simulation experiment device |
| CN105628357A (en) * | 2015-12-22 | 2016-06-01 | 浙江海洋学院 | Tail shaft detection experiment device with counterweight plate |
| CN106768928A (en) * | 2016-11-30 | 2017-05-31 | 清华大学 | A kind of controllable mechanical transmission-type rotor rubbing testing stand of power |
| CN106768930A (en) * | 2016-11-30 | 2017-05-31 | 清华大学 | A kind of controllable hydraulic loaded formula rotor rubbing testing stand of power |
| CN108267320A (en) * | 2018-03-28 | 2018-07-10 | 哈尔滨电气股份有限公司 | A kind of rotor-support-foundation system unbalanced fault experimental simulation device |
| CN108414216A (en) * | 2018-06-08 | 2018-08-17 | 哈尔滨电气股份有限公司 | A kind of connecting rod experimental rig of model rotor impact-rub malfunction |
| CN108507775A (en) * | 2018-04-25 | 2018-09-07 | 哈尔滨电气股份有限公司 | A kind of experimental rig of model rotor impact-rub malfunction |
| CN109238679A (en) * | 2018-09-29 | 2019-01-18 | 天津大学 | One kind touches that power of rubbing is measurable pneumatically to touch the device that rubs |
| CN110887631A (en) * | 2019-12-04 | 2020-03-17 | 中国直升机设计研究所 | Hydraulic acceleration test bed |
| CN114323611A (en) * | 2021-12-21 | 2022-04-12 | 哈电发电设备国家工程研究中心有限公司 | Rubbing fault simulation test device applied to rotary machine and control method |
| CN114739651A (en) * | 2022-04-20 | 2022-07-12 | 北京航空航天大学 | Aero-engine bearing looseness simulation device with controllable end face friction force and radial clearance |
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2011
- 2011-10-28 CN CN 201110334626 patent/CN102410929B/en not_active Expired - Fee Related
Patent Citations (4)
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Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103528813A (en) * | 2013-10-28 | 2014-01-22 | 东北大学 | Rubbing experimental device of blade-coating machine case |
| CN103759934A (en) * | 2014-01-26 | 2014-04-30 | 清华大学 | Birotor fault simulation experiment device |
| CN103759934B (en) * | 2014-01-26 | 2016-08-17 | 清华大学 | Birotor fault simulation experiment device |
| CN105628357A (en) * | 2015-12-22 | 2016-06-01 | 浙江海洋学院 | Tail shaft detection experiment device with counterweight plate |
| CN106768930B (en) * | 2016-11-30 | 2023-03-24 | 清华大学 | Force-controllable hydraulic loading type rotor collision friction test bed |
| CN106768928B (en) * | 2016-11-30 | 2023-03-10 | 清华大学 | Force-controllable mechanical transmission type rotor rub-impact test bed |
| CN106768930A (en) * | 2016-11-30 | 2017-05-31 | 清华大学 | A kind of controllable hydraulic loaded formula rotor rubbing testing stand of power |
| CN106768928A (en) * | 2016-11-30 | 2017-05-31 | 清华大学 | A kind of controllable mechanical transmission-type rotor rubbing testing stand of power |
| CN108267320A (en) * | 2018-03-28 | 2018-07-10 | 哈尔滨电气股份有限公司 | A kind of rotor-support-foundation system unbalanced fault experimental simulation device |
| CN108267320B (en) * | 2018-03-28 | 2024-04-16 | 哈尔滨电气股份有限公司 | Rotor system misalignment fault experimental simulation device |
| CN108507775A (en) * | 2018-04-25 | 2018-09-07 | 哈尔滨电气股份有限公司 | A kind of experimental rig of model rotor impact-rub malfunction |
| CN108507775B (en) * | 2018-04-25 | 2024-04-05 | 哈尔滨电气股份有限公司 | Test device for simulating rotor rub-impact fault |
| CN108414216B (en) * | 2018-06-08 | 2024-03-08 | 哈尔滨电气股份有限公司 | Connecting rod test device for simulating rotor rub-impact fault |
| CN108414216A (en) * | 2018-06-08 | 2018-08-17 | 哈尔滨电气股份有限公司 | A kind of connecting rod experimental rig of model rotor impact-rub malfunction |
| CN109238679A (en) * | 2018-09-29 | 2019-01-18 | 天津大学 | One kind touches that power of rubbing is measurable pneumatically to touch the device that rubs |
| CN110887631B (en) * | 2019-12-04 | 2021-10-15 | 中国直升机设计研究所 | Hydraulic acceleration test bed |
| CN110887631A (en) * | 2019-12-04 | 2020-03-17 | 中国直升机设计研究所 | Hydraulic acceleration test bed |
| CN114323611A (en) * | 2021-12-21 | 2022-04-12 | 哈电发电设备国家工程研究中心有限公司 | Rubbing fault simulation test device applied to rotary machine and control method |
| CN114323611B (en) * | 2021-12-21 | 2023-09-22 | 哈电发电设备国家工程研究中心有限公司 | Rub-impact fault simulation test device and control method applied to rotary machinery |
| CN114739651A (en) * | 2022-04-20 | 2022-07-12 | 北京航空航天大学 | Aero-engine bearing looseness simulation device with controllable end face friction force and radial clearance |
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| CN102410929B (en) | 2013-07-31 |
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