CN203785838U - Shafting dynamic balancing experimental device - Google Patents
Shafting dynamic balancing experimental device Download PDFInfo
- Publication number
- CN203785838U CN203785838U CN201420081444.8U CN201420081444U CN203785838U CN 203785838 U CN203785838 U CN 203785838U CN 201420081444 U CN201420081444 U CN 201420081444U CN 203785838 U CN203785838 U CN 203785838U
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- Prior art keywords
- mounting groove
- rotor
- shaft coupling
- unbalance
- shafting
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Abstract
The utility model discloses a shafting dynamic balancing experimental device. The shafting dynamic balancing experimental device comprises a pedestal, at least two rotors are arranged on the pedestal, each rotor is supported by bearings, and each bearing is installed in a bearing pedestal; the rotors are connected with each other through a shaft coupling, and the rotors are driven by a motor through the shaft coupling; each rotor is provided with a weighting disc used for simulating the unbalance amount; each bearing pedestal is provided with a mounting hole used for the installation of a current vortex sensor; and the shaft coupling comprises a shaft sleeve, an end cap, a ring gear, a gland and an intermediate adapter. According to the utility model, influences of the shaft coupling on shafting unbalance experiments can be eliminated, influences of the experimental device on the shafting unbalance experiments are reduced at the same time, and the precision of the shafting unbalance experiments is improved.
Description
Technical field
The utility model relates to the experiment table of overall machine vibration monitoring and control field, be specifically related to a kind of shafting dynamic balance experimental provision, 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.Balance method for 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 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, U.S. Bently company 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, application number is that 200820028419.8 utility model patent discloses a kind of shafting dynamic balance experimental bench, comprises base, is furnished with at least two roots rotors on base, 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, directly by rigidity, half elasticity or spring coupling, be connected; 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 axle is rotor to be passed through rigidity, half elasticity or spring coupling and connects, 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.
When 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.
Utility model content
The utility model is the impact of unbalance experiment on axle in order to solve the shaft coupling of existing balance test platform setting, and provide a kind of shafting dynamic balance experimental provision, can eliminate shaft coupling is the impact of unbalance experiment on axle, reduce experimental provision is the impact of unbalance experiment on axle simultaneously, and improving axle is unbalance experimental precision.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is:
A shafting dynamic balance experimental provision, 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, by shaft coupling, be connected, rotor is driven by motor by shaft coupling, on rotor, be provided with for simulating the dish that increases the weight of of unbalance amount, described bearing seat is provided with for the mounting hole of current vortex sensor is installed, 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, described gimbal is provided with annular mounting groove along excircle direction, the cross section radially of described mounting groove is " protruding " word shape, described mounting groove is provided with equably counterbalance weight along the radial direction of mounting groove and enters hole, the shape of described counterbalance weight is identical with the cross sectional shape of mounting groove to be " protruding " word shape and can to slide along mounting groove annular, the top of described counterbalance weight is provided with screw rod, described counterbalance weight is equipped with fastening block, described screw rod is connected with fastening nuts through described fastening block.
Further, be provided with equably the anti-slip tank arranging along middle adapter axial direction on the outer circumference surface of described mounting groove, the lower surface of described fastening block is provided with the raised line suitable with anti-slip tank.
Further, described mounting groove is equipped with scale along ring circumferencial direction.
Compared with prior art, the utlity model has following beneficial effect:
Shafting dynamic balance experimental provision of the present utility model, 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, by shaft coupling, be connected, rotor is driven by motor by shaft coupling; On rotor, be provided with for simulating the dish that increases the weight of of unbalance amount; Bearing seat is provided with for the mounting hole of current vortex sensor is installed; Shaft coupling comprises axle sleeve, end cap, ring gear, gland and middle adapter, the two ends symmetry of middle adapter be provided with gimbal, gimbal is provided with annular mounting groove along excircle direction, the cross section radially of mounting groove is " protruding " word shape, mounting groove is provided with equably counterbalance weight along the radial direction of mounting groove and enters hole, the shape of counterbalance weight is identical with the cross sectional shape of mounting groove to be " protruding " word shape and can to slide along mounting groove annular, the top of counterbalance weight is provided with screw rod, counterbalance weight is equipped with fastening block, and screw rod is connected with fastening nuts through described fastening block.The utility model arranges gimbal on shaft coupling, before installing, shaft coupling is carried out to balance adjustment, can eliminate the impact of shaft coupling on shafting balancing experiment, reduces the impact of equipment on unbalance experiment, and improving axle is unbalance experimental precision.
Simultaneously of the present utility model by current vortex sensor is directly installed on bearing seat, when 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 facilities and bring impact, for design, the installment and debugging of slewing provides gross data exactly, reduce and be rotatably provided in the vibration in actual motion.
On the outer circumference surface of mounting groove of the present utility model, be provided with equably the anti-slip tank arranging along middle adapter axial direction, the lower surface of described fastening block is provided with the raised line suitable with anti-slip tank.By the mating reaction of raised line and chute, 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.
Mounting groove of the present utility model along ring circumferencial direction be equipped with scale, be convenient to mark and adjusting, improve Practical Performance of the present utility model.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of the utility model shaft coupling;
Fig. 3 is the structural representation that gimbal enters hole;
Fig. 4 is the schematic diagram that the utility model bearing seat 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, axle sleeve, 8, end cap, 9, ring gear, 10, gland, 11, counterbalance weight, 12, fastening block, 13, nut, 14, screw rod, 15, middle adapter, 16, mounting groove, 17, gimbal, 18, enter hole, 19, mounting hole.
Embodiment
Below in conjunction with embodiment, the utility model will be further described, and described embodiment is only the utility model part embodiment, is not whole embodiment.Embodiment based in the utility model, those of ordinary skill in the art, not making other embodiment used that obtain under creative work prerequisite, belongs to protection domain of the present utility model.
Shafting dynamic balance experimental provision of the present utility model, 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, by shaft coupling, be connected, rotor is driven by motor by shaft coupling, on rotor, be provided with for simulating the dish that increases the weight of of unbalance amount, described bearing seat is provided with for the mounting hole of current vortex sensor is installed, 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, described gimbal is provided with annular mounting groove along excircle direction, the cross section radially of described mounting groove is " protruding " word shape, described mounting groove is provided with equably counterbalance weight along the radial direction of mounting groove and enters hole, the shape of described counterbalance weight is identical with the cross sectional shape of mounting groove to be " protruding " word shape and can to slide along mounting groove annular, the top of described counterbalance weight is provided with screw rod, described counterbalance weight is equipped with fastening block, described screw rod is connected with fastening nuts through described fastening block.
As a kind of mode of selection, increase the weight of to offer screw hole on dish, by the number of mounting screw, change the weight that increases the weight of dish, thereby carry out axle system to simulate unbalance experiment.
Further, be provided with equably the anti-slip tank arranging along middle adapter axial direction on the outer circumference surface of described mounting groove, the lower surface of described fastening block is provided with the raised line suitable with anti-slip tank.
Further, described mounting groove is equipped with scale along ring circumferencial direction.
Shafting dynamic balance experimental provision of the present utility model, 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, by shaft coupling, be connected, rotor is driven by motor by shaft coupling; On rotor, be provided with for simulating the dish that increases the weight of of unbalance amount; Bearing seat is provided with for the mounting hole of current vortex sensor is installed; Shaft coupling comprises axle sleeve, end cap, ring gear, gland and middle adapter, the two ends symmetry of middle adapter be provided with gimbal, gimbal is provided with annular mounting groove along excircle direction, the cross section radially of mounting groove is " protruding " word shape, mounting groove is provided with equably counterbalance weight along the radial direction of mounting groove and enters hole, the shape of counterbalance weight is identical with the cross sectional shape of mounting groove to be " protruding " word shape and can to slide along mounting groove annular, the top of counterbalance weight is provided with screw rod, counterbalance weight is equipped with fastening block, and screw rod is connected with fastening nuts through described fastening block.The utility model arranges gimbal on shaft coupling, before installing, shaft coupling is carried out to balance adjustment, can eliminate the impact of shaft coupling on shafting balancing experiment, reduces the impact of equipment on unbalance experiment, and improving axle is unbalance experimental precision.
Simultaneously of the present utility model by current vortex sensor is directly installed on bearing seat, when 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 facilities and bring impact, for design, the installment and debugging of slewing provides gross data exactly, reduce and be rotatably provided in the vibration in actual motion.
On the outer circumference surface of mounting groove of the present utility model, be provided with equably the anti-slip tank arranging along middle adapter axial direction, the lower surface of described fastening block is provided with the raised line suitable with anti-slip tank.By the mating reaction of raised line and chute, 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.
Mounting groove of the present utility model along ring circumferencial direction be equipped with scale, be convenient to mark and adjusting, improve Practical Performance of the present utility model.
Claims (3)
1. a shafting dynamic balance experimental provision, 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, by shaft coupling, be connected, rotor is driven by motor by shaft coupling, on rotor, be provided with for simulating the dish that increases the weight of of unbalance amount, described bearing seat is provided with for the mounting hole of current vortex sensor is installed, 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, described gimbal is provided with annular mounting groove along excircle direction, the cross section radially of described mounting groove is " protruding " word shape, described mounting groove is provided with equably counterbalance weight along the radial direction of mounting groove and enters hole, the shape of described counterbalance weight is identical with the cross sectional shape of mounting groove to be " protruding " word shape and can to slide along mounting groove annular, the top of described counterbalance weight is provided with screw rod, described counterbalance weight is equipped with fastening block, described screw rod is connected with fastening nuts through described fastening block.
2. shafting dynamic balance experimental provision according to claim 1, is characterized in that, is provided with equably the anti-slip tank arranging along middle adapter axial direction on the outer circumference surface of described mounting groove, and the lower surface of described fastening block is provided with the raised line suitable with anti-slip tank.
3. shafting dynamic balance experimental provision according to claim 1 and 2, is characterized in that, described mounting groove along ring circumferencial direction be equipped with scale.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420081444.8U CN203785838U (en) | 2014-02-26 | 2014-02-26 | Shafting dynamic balancing experimental device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420081444.8U CN203785838U (en) | 2014-02-26 | 2014-02-26 | Shafting dynamic balancing experimental device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203785838U true CN203785838U (en) | 2014-08-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420081444.8U Expired - Fee Related CN203785838U (en) | 2014-02-26 | 2014-02-26 | Shafting dynamic balancing experimental device |
Country Status (1)
| Country | Link |
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| CN (1) | CN203785838U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103776588A (en) * | 2014-02-26 | 2014-05-07 | 成都卓微科技有限公司 | Shafting dynamic balance experimental facility |
| 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 |
| CN107246935A (en) * | 2017-05-19 | 2017-10-13 | 哈尔滨工业大学 | Spaceborne rotating camera on-line dynamic balancing control method and system |
-
2014
- 2014-02-26 CN CN201420081444.8U patent/CN203785838U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103776588A (en) * | 2014-02-26 | 2014-05-07 | 成都卓微科技有限公司 | Shafting dynamic balance experimental facility |
| CN103776588B (en) * | 2014-02-26 | 2016-03-30 | 成都卓微科技有限公司 | A kind of shafting dynamic balance experimental provision |
| 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 |
| CN107246935A (en) * | 2017-05-19 | 2017-10-13 | 哈尔滨工业大学 | Spaceborne rotating camera on-line dynamic balancing control method and system |
| CN107246935B (en) * | 2017-05-19 | 2019-08-06 | 哈尔滨工业大学 | Spaceborne rotating camera on-line dynamic balancing control method and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140820 Termination date: 20150226 |
|
| EXPY | Termination of patent right or utility model |