CN103776590A - Rotor balance experiment table - Google Patents
Rotor balance experiment table Download PDFInfo
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- CN103776590A CN103776590A CN201410065305.0A CN201410065305A CN103776590A CN 103776590 A CN103776590 A CN 103776590A CN 201410065305 A CN201410065305 A CN 201410065305A CN 103776590 A CN103776590 A CN 103776590A
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Abstract
The invention discloses a rotor balance experiment table which comprises a base, wherein at least two rotors are arranged on the base, each rotor is supported by a bearing, and all the bearings are mounted in a bearing block; the rotors are connected by a coupling, and driven by a motor through the coupling; a mounting hole for mounting an electrical vortex sensor is formed in the bearing block; a weighting disc for simulating an unbalance quantity is mounted on the rotors, strip-like through holes are evenly formed in the weighting disc in the radial direction, and weighting blocks for simulating the unbalance quantity are arranged to match with the strip-like through holes; besides, the strip-like through holes are evenly formed in the weighting disc of the unbalance quantity in the radial direction, and the weighting blocks for simulating the unbalance quantity are arranged to match with the strip-like through holes. The rotor balance experiment table is capable of reducing influence, caused by the experimental facility, on the unbalance quantity of the rotors, and improving the test precision of the unbalance quantity of the rotors.
Description
Technical field
The present invention relates to the experiment table of overall machine vibration monitoring and control field, be specifically related to a kind of rotor balancing experiment table, can simulate the unbalance forced vibration of flexible rotor axle system, effectively reproduce the energy imbalance that rotating machinery produces, for the research of rotor theory of dynamic and method.
Background technology
Unbalance is the modal fault of rotating machinery, and its processing procedure is also complicated in all faults.For the balance method of flex rotor spot dynamic balance, can be summarized as modal balance method and the large class of influence coefficient method two, from counterbalance effect, although said method can be realized the desirable balance of rotor, but due to the diversity of flex rotor structure and the complicacy of actual unbalance situation, simultaneously, due to the strict restriction of the factors such as the dynamic performance of the position of cycling start number of times, rotor balancing face and vibration measuring point and number, position, axle be spot dynamic balance up to the present still still a kind of examination under theoretical direction survey process.
At present, Bently company of the U.S. has produced the dynamic balance experimental bench of single shaft, but does not connect into the balance test setting of axle system.Rotor oscillation simulated experiment platform bearing seat and base that domestic Dong great vibration measuring instrument plant produces are fixed by slide block guide rail, and sensor stand and base are fixed by monolateral screw, and positioning precision is lower, easily introduces non-power frequency fault, obscures the research to balancing fault.
For these problems, the patent of invention that application number is 200820028419.8 discloses a kind of shafting dynamic balance experimental bench, comprises base, is furnished with at least two roots rotors on base, and every roots rotor is supported by two oiliness bearings, and oiliness bearing is arranged in bearing seat; Between rotor and rotor directly by rigidity, do elasticity or spring coupling is connected, rotor by shaft coupling by direct motor drive; Every roots rotor is provided with and increases the weight of dish, increase the weight of to coil equal intervals and be distributed with 16 threaded holes, to simulate unbalance amount by mounting screw, every roots rotor is also furnished with two sensor support bases, be used for installing current vortex sensor, between rotor and rotor, be directly connected by rigidity, half elasticity or spring coupling; Three locating surfaces on bearing seat and sensor support base and base have corresponding mating surface, to ensure the radial fit between bearing seat and sensor support base and base, and ensure the axial restraint between bearing seat and sensor support base and base by screw.
Although this balance test platform can be simulated the unbalance forced vibration of flexible rotor axle system easily, effectively reproduces the energy imbalance that large rotating machinery produces, for the research of rotor theory of dynamic method.
But rotor connects by rigidity, half elasticity or spring coupling, and shaft coupling because material structure is inhomogeneous, foozle, alignment error, make not overlap with rotation by the principal axis of inertia of shaft coupling barycenter, shaft coupling has small bias will produce larger centrifugal intertia force, will produce larger annex dynamic pressure to bearing, thereby affect the experiment of dynamic balancing of axle system.
In simulating unbalance experiment, due to bearing seat, the impact of bearing on rotor restriction, make the current vortex sensor of sensor support seat can not obtain accurately and effectively unbalance experimental data, this just causes slewing effectively correspondingly to adjust, thereby causes slewing vibration large.
By adding screw and simulate unbalance amount on dish increasing the weight of, because screw hole location is fixed, make the unbalance amount data area of simulation narrower, the unbalance situation of model rotor in real work effectively simultaneously.
Summary of the invention
The present invention is subject to the impact of experimental provision itself and causes rotor imbalance data not accurate enough for the rotor imbalance data that solve existing balance test platform and obtain, and provide a kind of rotor balancing experiment table, can obtain accurately and effectively rotor and simulate unbalance data, can obtain more unbalance amount data, reduce the impact of experimental provision on experimental data, for design, the installment and debugging of slewing provide gross data exactly.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is:
A kind of rotor balancing experiment table, is characterized in that, comprises base, is furnished with at least two roots rotors on base, and every roots rotor is by bearings, and bearing is arranged in bearing seat; Between rotor and rotor, be connected by shaft coupling, rotor is driven by motor by shaft coupling; Described bearing seat is provided with the mounting hole for current vortex sensor is installed; The dish that increases the weight of for simulating unbalance amount is installed on described rotor, described in increase the weight of rim radial direction and be evenly provided with strip through hole, described strip through hole is equipped with the weight for simulating unbalance amount; Described shaft coupling comprises axle sleeve, end cap, ring gear, gland and middle adapter, the two ends symmetry of described middle adapter be provided with gimbal, the axial direction that described gimbal is provided with middle adapter is provided with annular dovetail slot, on described gimbal, be provided with symmetrically the through hole of putting into or take out counterbalance weight, one end of described counterbalance weight is provided with screw rod, and described screw rod is through being connected with clamp nut with fastening block through dovetail groove successively.
Further, described dovetail groove be provided with equably anti-slip tank, described fastening block is provided with the projection suitable with anti-slip tank.
Further, first, second, and third locating surface on described bearing seat and base has corresponding mating surface.
Compared with prior art, the present invention has following beneficial effect:
The present invention, by gimbal is set on shaft coupling, carries out balance adjustment to shaft coupling before installing, and can eliminate the impact of shaft coupling on shafting balancing experiment, reduces the impact of experimental provision on rotor imbalance experiment, improves rotor imbalance experimental precision.Simultaneously of the present invention by current vortex sensor is directly installed on bearing seat, in simulating unbalance test, the unbalance amount of rotor directly passes to by bearing the current vortex sensor being arranged on bearing seat, thereby directly obtain the unbalance data of simulation, can obtain accurately and effectively the unbalance data of simulation, reduce experimental provision and bring impact, for design, the installment and debugging of slewing provide gross data exactly, reduce the vibration being rotatably provided in actual motion.The present invention is by increasing the weight of setting strip through hole radially on dish, when simulation unbalance amount, can radially regulate the riding position of weight, make it possible to obtain more unbalance amount data, being convenient to the axle of simulation in real work is unbalance amount situation, provides more unbalance amount data for axle ties up in real work.
Dovetail groove of the present invention be provided with equably anti-slip tank, described fastening block is provided with the projection suitable with anti-slip tank.By the mating reaction of raised line and anti-slip tank, prevent the slip of counterbalance weight in fastening process, guarantee that counterbalance weight can be arranged on non-equilibrium site accurately, improve the precision of balance.
First, second, and third locating surface on bearing seat of the present invention and base has the mating surface adapting, and improves the installation accuracy of bearing seat.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is that the present invention increases the weight of to coil structural representation;
Fig. 3 is coupler structure schematic diagram of the present invention;
Fig. 4 is the gimbal structural representation of this shaft coupling;
Fig. 5 is the cut-open view schematic diagram at this Fig. 4 A-A place;
Fig. 6 is the structural representation that bearing seat of the present invention coordinates with base;
Mark in figure: 1, base, 2, motor, 3, bearing seat, 4, increase the weight of dish, 5, rotor, 6, shaft coupling, 7, strip through hole, 8, weight, 9, axle sleeve, 10, end cap, 11, ring gear, 12, gland, 13, gimbal, 14, dovetail groove, 15, through hole, 16, clamp nut, 17, fastening block, 18, counterbalance weight, 19, screw rod, 20, the first locating surface, 21, the second locating surface, 22, the 3rd locating surface, 23, mounting hole, 24, middle adapter.
Embodiment
Below in conjunction with embodiment, the invention will be further described, and described embodiment is only the present invention's part embodiment, is not whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiment used that obtain under creative work prerequisite, belongs to protection scope of the present invention.
Rotor balancing experiment table of the present invention, comprises base, is furnished with at least two roots rotors on base, and every roots rotor is by bearings, and bearing is arranged in bearing seat; Between rotor and rotor, be connected by shaft coupling, rotor is driven by motor by shaft coupling; Described bearing seat is provided with the mounting hole for current vortex sensor is installed; The dish that increases the weight of for simulating unbalance amount is installed on described rotor, described in increase the weight of rim radial direction and be evenly provided with strip through hole, described strip through hole is equipped with the weight for simulating unbalance amount; Described shaft coupling comprises axle sleeve, end cap, ring gear, gland and middle adapter, the two ends symmetry of described middle adapter be provided with gimbal, the axial direction that described gimbal is provided with middle adapter is provided with annular dovetail slot, on described gimbal, be provided with symmetrically the through hole of putting into or take out counterbalance weight, one end of described counterbalance weight is provided with screw rod, and described screw rod is through being connected with clamp nut with fastening block through dovetail groove successively.Being arranged on strip through hole of weight, those skilled in the art can understand and understand, and current vortex sensor belongs to prior art products, does not repeat them here.
The present invention, by gimbal is set on shaft coupling, carries out balance adjustment to shaft coupling before installing, and can eliminate the impact of shaft coupling on shafting balancing experiment, reduces the impact of experimental provision on rotor imbalance experiment, improves rotor imbalance experimental precision.Simultaneously of the present invention by current vortex sensor is directly installed on bearing seat, in simulating unbalance test, the unbalance amount of rotor directly passes to by bearing the current vortex sensor being arranged on bearing seat, thereby directly obtain the unbalance data of simulation, can obtain accurately and effectively the unbalance data of simulation, reduce experimental provision and bring impact, for design, the installment and debugging of slewing provide gross data exactly, reduce the vibration being rotatably provided in actual motion.The present invention is by increasing the weight of setting strip through hole radially on dish, when simulation unbalance amount, can radially regulate the riding position of weight, make it possible to obtain more unbalance amount data, being convenient to the axle of simulation in real work is unbalance amount situation, provides more unbalance amount data for axle ties up in real work.
Further, dovetail groove be provided with equably anti-slip tank, described fastening block is provided with the projection suitable with anti-slip tank.By the mating reaction of raised line and anti-slip tank, prevent the slip of counterbalance weight in fastening process, guarantee that counterbalance weight can be arranged on non-equilibrium site accurately, improve the precision of balance.
Further, first, second, and third locating surface on bearing seat and base has corresponding mating surface, improves the installation accuracy of bearing seat.
Claims (3)
1. a rotor balancing experiment table, is characterized in that, comprises base, is furnished with at least two roots rotors on base, and every roots rotor is by bearings, and bearing is arranged in bearing seat; Between rotor and rotor, be connected by shaft coupling, rotor is driven by motor by shaft coupling; Described bearing seat is provided with the mounting hole for current vortex sensor is installed; The dish that increases the weight of for simulating unbalance amount is installed on described rotor, described in increase the weight of rim radial direction and be evenly provided with strip through hole, described strip through hole is equipped with the weight for simulating unbalance amount; Described shaft coupling comprises axle sleeve, end cap, ring gear, gland and middle adapter, the two ends symmetry of described middle adapter be provided with gimbal, the axial direction that described gimbal is provided with middle adapter is provided with annular dovetail slot, on described gimbal, be provided with symmetrically the through hole of putting into or take out counterbalance weight, one end of described counterbalance weight is provided with screw rod, and described screw rod is through being connected with clamp nut with fastening block through dovetail groove successively.
2. rotor balancing experiment table according to claim 1, is characterized in that, described dovetail groove be provided with equably anti-slip tank, described fastening block is provided with the projection suitable with anti-slip tank.
3. rotor balancing experiment table according to claim 1 and 2, is characterized in that, first, second, and third locating surface on described bearing seat and base has corresponding mating surface.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410065305.0A CN103776590B (en) | 2014-02-26 | 2014-02-26 | A kind of rotor balancing laboratory table |
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| CN201410065305.0A CN103776590B (en) | 2014-02-26 | 2014-02-26 | A kind of rotor balancing laboratory table |
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| CN103776590A true CN103776590A (en) | 2014-05-07 |
| CN103776590B CN103776590B (en) | 2016-11-23 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104316265A (en) * | 2014-11-18 | 2015-01-28 | 四川邮科通信技术有限公司 | Balance experiment table |
| CN104764607A (en) * | 2015-04-17 | 2015-07-08 | 兰州理工大学 | Steam turbine rotor fault simulation experiment system |
| CN105202111A (en) * | 2014-11-18 | 2015-12-30 | 四川邮科通信技术有限公司 | Coupler provided with balancing devices |
| CN105203260A (en) * | 2014-11-18 | 2015-12-30 | 四川邮科通信技术有限公司 | Dynamic balance experiment apparatus |
| CN105276014A (en) * | 2014-11-18 | 2016-01-27 | 四川邮科通信技术有限公司 | Coupler |
| CN107560791A (en) * | 2017-09-25 | 2018-01-09 | 杭州集智机电股份有限公司 | Connecting rod slider device for the rotor of gas-powered centering variable-diameter |
| CN110718988A (en) * | 2018-07-13 | 2020-01-21 | 美蓓亚三美株式会社 | Electric motor |
| CN114572426A (en) * | 2022-02-21 | 2022-06-03 | 中国科学院空间应用工程与技术中心 | Space on-orbit centrifuge and space experiment cabinet body |
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| CN203248553U (en) * | 2013-01-22 | 2013-10-23 | 郑州大学 | Flexible coupling for magnetic levitation motor |
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| US6196332B1 (en) * | 1998-12-03 | 2001-03-06 | Ingersoll-Rand Company | Rotational energy storage device and tools incorporating same |
| CN2515451Y (en) * | 2002-01-19 | 2002-10-09 | 郑祥权 | Drum-shape tooth coupling |
| US20040058735A1 (en) * | 2002-08-08 | 2004-03-25 | Centa-Antriebe Kirschey Gmbh | Shaft coupling with high torsional elasticity and method of making same |
| CN1839268A (en) * | 2003-10-08 | 2006-09-27 | 加斯帕尔多塞米纳特里奇有限公司 | A transmission joint, in particular for transmitting drive between non-aligned shafts |
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| CN201475195U (en) * | 2009-08-04 | 2010-05-19 | 李文聪 | Non-dynamic balance type single-variable-diameter coupling |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104316265A (en) * | 2014-11-18 | 2015-01-28 | 四川邮科通信技术有限公司 | Balance experiment table |
| CN105202111A (en) * | 2014-11-18 | 2015-12-30 | 四川邮科通信技术有限公司 | Coupler provided with balancing devices |
| CN105203260A (en) * | 2014-11-18 | 2015-12-30 | 四川邮科通信技术有限公司 | Dynamic balance experiment apparatus |
| CN105276014A (en) * | 2014-11-18 | 2016-01-27 | 四川邮科通信技术有限公司 | Coupler |
| CN104764607A (en) * | 2015-04-17 | 2015-07-08 | 兰州理工大学 | Steam turbine rotor fault simulation experiment system |
| CN107560791A (en) * | 2017-09-25 | 2018-01-09 | 杭州集智机电股份有限公司 | Connecting rod slider device for the rotor of gas-powered centering variable-diameter |
| CN107560791B (en) * | 2017-09-25 | 2023-08-15 | 杭州集智机电股份有限公司 | Connecting rod slide block device for gas-driven centering variable-diameter rotor |
| CN110718988A (en) * | 2018-07-13 | 2020-01-21 | 美蓓亚三美株式会社 | Electric motor |
| CN114572426A (en) * | 2022-02-21 | 2022-06-03 | 中国科学院空间应用工程与技术中心 | Space on-orbit centrifuge and space experiment cabinet body |
| CN114572426B (en) * | 2022-02-21 | 2022-10-11 | 中国科学院空间应用工程与技术中心 | Space on-orbit centrifuge and space experiment cabinet body |
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Inventor after: Chen Julong Inventor before: Liu Lin |
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Effective date of registration: 20170808 Address after: 313000, Zhejiang Province, Huzhou City, Changxing County province pheasant town emerging industrial park, No. 9 package Road Patentee after: Zhejiang Changxing Juyuan Machinery Co., Ltd. Address before: 610000, No. 7, building 1, building 93, building 2, fragrant grass street, 13 high tech Zone, Chengdu, Sichuan Patentee before: CHENGDU ZHUOWEI TECHNOLOGY CO., LTD. |
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Address after: 313000, Zhejiang Province, Huzhou City, Changxing County province pheasant town emerging industrial park, No. 9 package Road Patentee after: Zhejiang giant source power equipment Co., Ltd. Address before: 313000, Zhejiang Province, Huzhou City, Changxing County province pheasant town emerging industrial park, No. 9 package Road Patentee before: Zhejiang Changxing Juyuan Machinery Co., Ltd. |
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