CN202083521U - Liquid type on-line dynamic balance head of high-speed rotator - Google Patents
Liquid type on-line dynamic balance head of high-speed rotator Download PDFInfo
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- CN202083521U CN202083521U CN201120085825XU CN201120085825U CN202083521U CN 202083521 U CN202083521 U CN 202083521U CN 201120085825X U CN201120085825X U CN 201120085825XU CN 201120085825 U CN201120085825 U CN 201120085825U CN 202083521 U CN202083521 U CN 202083521U
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Abstract
The utility model relates to a liquid type on-line dynamic balance head of a high-speed rotator, comprising a balance head main body (2), a seal ring (4), a mini peristaltic pump (5), hoses (6), (7), (8), (9) and (10), an electrical machine, a front end cover, a rear end cover, an air exhausting joint, a battery pack and a detecting and controlling system, wherein the balance head main body (2) is fastened with a rotor shaft (1) by a screw, and the end face of the balance head main body (2) is provided with four or a plurality of liquid storing rooms (3) which are distributed in a central symmetry way and coincident in size; the liquid storing rooms (3) are internally and equivalently filled with the water or other liquid with a half volume, and every two opposite liquid storing rooms (3) are communicated with each other by the leak-free and bidirectional-work mini peristaltic pump (5) through the hose; and the seal ring (4) is arranged in a forth groove (24) outside the liquid storing rooms (3). The liquid type on-line dynamic balance head realizes the movement of the micro-liquid by the leak-free and bidirectional-work mini peristaltic pump (5), is simple in structure and fast in response, can be used for exactly adjusting and balancing the quality distribution in the plane, can be used for realizing the on-line dynamic balance, and is wide in the application prospect.
Description
Technical field
The utility model relates to a kind of rotor on-line dynamic balancing head, especially a kind of liquid-type high speed rotor on-line dynamic balancing head.
Background technology
High speed rotor is a high-speed rotating machine, especially one of the most key parts in the high-speed processing machine tool.Its running accuracy all has fundamental influence to the processing characteristics of whole lathe, reliability etc.High speed rotor make and assembling process in, can cause its barycenter and rotation center inconsistent because of material inequality, processing and rigging error etc. inevitably.Will produce the unbalance dynamic phenomenon when so, rotor high-speed rotates.The unbalance dynamic of rotor rotation is the one of the main reasons that phenomenons such as machine vibration, noise, bearing heating produce.Rotor speed is high more, and the adverse effect that imbalance causes is just big more.For eliminating the imbalance in the rotor rotation process in real time, must adopt the on-line dynamic balancing technology.
On know-why, existing rotor on-line dynamic balancing technology and method mainly contain and increase the weight of or go two kinds of heavy method, balancing head methods.Increasing the weight of or going heavy method is size and phase place according to the rotor unbalance value that records, directly increases the weight of or go heavily to change the mass distribution in the rotor balancing plane, to reach in the line balance purpose on rotor.More typically there is laser to remove heavy method and high speed thermojet weighting procedure.It is to utilize laser to remove material in the place that rotor is improved quality more that laser goes heavy method, to realize rotor dynamic balancing.Its defective is to influence the surface quality of rotor and reduce its fatigue limit, shortens the life-span of rotor-support-foundation system, also can form the metal particle and the steam that splash, causes environmental pollution and harm operating personnel healthy.On the other hand, at every turn can only the gasify metal of trace of laser beam, so balanced capacity is limited, generally only is applicable to the balance of small-sized mechanisms such as dental drill, gyroscope.High speed thermojet weighting procedure is to utilize the thermojet principle that a kind of stickum is ejected into the rotor less position of improving quality, to realize rotor dynamic balancing.Its defective is to spray the greater impact meeting that produces to produce new amount of unbalance, and injecting substances sticks to the surface quality that has a strong impact on rotor on the rotor; In addition, because the restriction of jet velocity also is only applicable to slow-speed of revolution rotor, and its complex process, the expense height is difficult to generally apply.The balancing head method is additional one or more balancing heads on rotor, the unbalance dynamic of rotor being carried out on the accurate basis of detecting, by the distribution of quality in the real time altering balancing head, thereby realizes the rotor on-line dynamic balancing.Along with sensor, online detection, technology such as control is constantly perfect automatically, online balancing head technology has also obtained developing rapidly.At present, it is first-class that the balancing head of being furtherd investigate and using mainly contains fluid balance head, gas equilibrium head, motor-driven balancing head, Electromagnetic Drive balancing head and Purely mechanical balance.
The fluid balance head that sees U.S. Pat 3950897 at first adopts in spray gun sprays into cavity volume in the balancing head with micro liquid from the outside, realizes the change of quality distribution in the balancing plane.It is simple in structure, and is with low cost, is mainly used in the on-line dynamic balancing of emery wheel.Its shortcoming is that liquid can be scattered in outside the balancing head, and environmental impact is big; Evaporating in the cavity volume limited it and realized the efficient and the effect of balance; And if a cavity volume full of liquid were arranged, just would be forced to end in line balance; On the other hand, after the shutdown, liquid can flow out from the cavity volume of opening, the balance quality forfeiture.
The gas dynamic balancing head is made up of four fan-shaped sealed volumes, and cavity volume communicates in twos relatively, and heating rod and Halon1202 medium are arranged in the cavity volume.The Halon medium back that is heated becomes gaseous state by liquid state, enters another cavity volume through pipeline, meets and is reduced to liquid state again after cold, realizes the adjustment of the interior centroid position of balancing plane thus.The low-response of this balancing head, and balanced capacity is limited, only is adapted to the balance of the small-sized mechanism of low speed, and technical requirement and cost are higher, apply difficulty.In addition, Halon also can damage the ozone layer.
The motor-driven balancing head is proposed in 1964 first by the Vande Vegte of University of Toronto, and it adopts motor as power source, utilizes gear trains such as gear, screw rod or worm and gear to realize the real-time migration of quality in the balancing plane.The mechanical type rotor automatic balance head that domestic patent of invention publication number is CN101266182A also belongs to the motor-driven balancing head.Such balancing head structure is complicated, needs extra power to supply with, and the life-span is shorter, and practicality is relatively poor.
The Electromagnetic Drive balancing head then drives the migration that realizes quality in the balancing plane by electromagnetic force, mainly is made up of fixed coil and rotating part.The rotating electromagnetic power that produces during the fixed coil energising drives the change of the correction mass piece position that connects firmly with rotating part, realizes the on-line dynamic balancing of whole rotary system.
The Purely mechanical dynamic balancing head is succeeded in developing in 2006 by the people such as Zhang Jiaqing of Zhejiang University, by the rotatable parts that connect firmly with rotor, be fixed on that actionless stationary parts and automatic feeding device constitute on the pedestal.Its with small ball as correction mass.When rotor produced imbalance, automatic feeding device was thrown in a steel ball to the steel ball inlet of a certain correspondence in stationary parts top.Steel ball is rolled in the cavity volume corresponding on the rotatable parts by the inner specific passage of stationary parts, changes the mass distribution in the rotatable parts balancing plane thus.This balancing head complex structure, volume is bigger, and is not suitable for high speed rotor.
This shows, that existing various rotor on-line dynamic balancing devices and technology all exist more or less is low such as balance quality, complex structure, with high costs, energy resource supply is inconvenient, environment compatibility is bad, be not suitable for deficiencies such as high speed rotor.These have all seriously restricted further developing that high speed rotor is used.
Summary of the invention
Based on the deficiency that prior art exists, the purpose of this utility model is to propose a kind of liquid-type high speed rotor on-line dynamic balancing head.It mainly is made up of balancing head body 2, front end end cover 22, rear end cap 12, O-ring seal 4, miniature peristaltic pump 5, motor 18, flexible pipe 6,7,9,10, screw 11,15,16,20, electric battery 19, air extraction connector 23, detection and control system.It detects and control system mainly comprises survey sensor 25, signal acquisition module 26, wireless signal transmitting module 27, signal receiving module 28, signal processing module 29, motor drive module 30 and power module 31.
The technical solution adopted in the utility model is: the balancing head body 2 of collar plate shape is placed on the armature spindle 1, and fastening by screw 16.Four or a plurality of centers symmetric arrangement, shape and fluid reservoir of the same size 3 are arranged on the end face of balancing head body 2.Equivalent charge into volume and are about half water or other liquid of its volume in the fluid reservoir 3.Two relative fluid reservoirs 3 are connected by flexible pipe by a miniature peristaltic pump 5.O-ring seal 4 is positioned at the 4th groove 24 of fluid reservoir 3 peripheries on balancing head body 2 end faces.Balancing head body 2 all connects firmly by screw 11 with front end end cover 22 and rear end cap 12.Correspondence position at each fluid reservoir 3 on the front end end cover 22 all has one by the fastening air extraction connector 23 of thread connection.Two or more centers symmetric arrangement can two-way no leakage work miniature peristaltic pump 5 be fixed in the 3rd groove 21 on balancing head body 2 end faces by screw 20.The axle and the miniature peristaltic pump 5 of motor 18 connect firmly. Flexible pipe 6,7,9,10 all is positioned at corresponding groove on balancing head body 2 end faces.Seal by fluid sealant between the periphery of hose end and the groove.One end of flexible pipe links to each other with miniature peristaltic pump 5, and the other end then links to each other with fluid reservoir outlet 8.Fluid reservoir outlet 8 is positioned at fluid reservoir 3 outside radially.Survey sensor 25, signal acquisition module 26 and wireless signal transmitting module 27 are all outside balancing head, and signal receiving module 28, signal processing module 29 and motor drive module 30 all are integrated in the circuit board 13.Circuit board 13 is fixed in first groove 14 on balancing head body 2 end faces by screw 15.In electric battery 19 fastening second grooves 17 that are installed on balancing head body 2 end faces in the power module 31.
The liquid-type high speed rotor on-line dynamic balancing head that the utility model proposes is based on do not have leaking the miniature peristaltic pump technology, has that volume is little, simple in structure, response is fast, balance quality is high, is easy to characteristics such as installation; The scheme of data wireless transmission and on-chip power has been simplified the complicacy that signal and the energy transmit in the conventional online dynamic poise device greatly; Hermetic structural design can keep the non-volatile and nothing leakage of internal liquid, has guaranteed its environment friendly, makes its balance quality not be subjected to the influence of startup-shutdown again.Therefore, have a extensive future.
Description of drawings
Fig. 1 is the structural representation that liquid-type high speed rotor on-line dynamic balancing head described in the utility model removes front end end cover.
Fig. 2 is the A-A cut-open view among Fig. 1.
Fig. 3 is the A place partial enlarged view among Fig. 1.
Fig. 4 is that the detection and the control system technology of liquid-type high speed rotor on-line dynamic balancing head described in the utility model realizes block diagram.
Fig. 5 is the fundamental diagram of miniature peristaltic pump.
Among the figure, 1. armature spindle, 2. balancing head body, 3. fluid reservoir, 4. O-ring seal, 5. miniature peristaltic pump, 6.7.9.10. flexible pipe, 8. fluid reservoir outlet, 11.15.16.20. screw, 12. rear end cap, 13. circuit boards, 14. first grooves, 17. second groove, 18. motors, 19. electric battery, 21. the 3rd groove, 22. front shrouds, 23. air extraction connectors, 24. the 4th groove, 25. survey sensors, 26. signal acquisition module, 27. wireless signal transmitting module, 28. wireless signal receiver modules, 29. signal processing modules, 30. motor drive module, 31. power modules, 32. pump housings, 33. pump line, 34. pump rotors.
Embodiment
By the following examples and accompanying drawing be further described.
As Fig. 1, Fig. 2 and shown in Figure 4, earlier equivalent charges into volume and is about half water or other liquid of its volume each fluid reservoir 3 in, and by air extraction connector 23 air in the fluid reservoir 3 is extracted out, with the maintenance negative pressure state.Then dynamic balancing head is anchored on the armature spindle 1 by screw 16, and with the rotor high-speed rotation.When rotor produced unbalance dynamic, survey sensor 25 recorded the amplitude and the phase place of unbalancing value in real time.This signal sends the signal processing module 29 that is positioned at balancing head inside to by wireless signal transmitting module 27 and signal receiving module 28 after signal acquisition module 26 collections and pre-service.29 what and directions of determining mass transfer in the balancing plane according to set control algolithm of signal processing module.30 output results according to signal processing module 29 of motor drive module drive one or more motors 18 and rotate certain revolution by specific direction.Miniature peristaltic pump 5 that can two-way no leakage work is laid particular stress on fluid reservoir on the orientation with liquid by flexible pipe quality in the balancing plane under the driving of motor 18 have with leaking and do not pump in another fluid reservoir corresponding with it, carry out the accuracy controlling of mass distribution in the balancing plane, thereby realize the on-line dynamic balancing of high speed rotor.
The principle of its control algolithm is as follows: as shown in Figure 1, suppose that the direction that miniature peristaltic pump 5 pumps liquid turns to consistent with it, and the quality that revolution pumps liquid is under the prerequisite of 1 gram, if the phase place that records the rotor unbalancing value is on the middle section of I and III fluid reservoir, and I fluid reservoir orientation lays particular stress on 10 grams.The motor 18 that 29 drivings of motor drive module are communicated with I and III fluid reservoir drives the miniature peristaltic pump 5 that connects firmly with it and rotates counterclockwise 5 commentaries on classics, and the liquid of 5 grams will be moved in the III fluid reservoir in the I fluid reservoir, thereby realizes the on-line dynamic balancing of rotor.If the phase place of rotor unbalancing value 90 degree (supposing that level is 0 degree to right), and lay particular stress on 10 grams, then motor drive module 29 drives respectively two motors 18 that are communicated with I and III number, II and IV fluid reservoir and drives two miniature peristaltic pumps 5 that connect firmly with it and all rotates counterclockwise 2.5 commentaries on classics.When unbalancing value is in other phase place, then drive two miniature peristaltic pumps, 5 rotation specified rotation number respectively according to interpolation or fuzzy algorithm, can realize the on-line dynamic balancing of rotor.
Claims (1)
1. liquid-type high speed rotor on-line dynamic balancing head, it is characterized in that: mainly by balancing head body (2), front end end cover (22), rear end cap (12), O-ring seal (4), miniature peristaltic pump (5), motor (18), flexible pipe (6), (7), (9), (10), screw (11), (15), (16), (20), air extraction connector (23), electric battery (19), detection and control system are formed; The balancing head body (2) of collar plate shape is anchored on the armature spindle (1) by screw (16); Balancing head body (2) all connects firmly by screw (11) with front end end cover (22) and rear end cap (12); Four or a plurality of centers symmetric arrangement, shape and fluid reservoir of the same size (3) are arranged on the end face of balancing head body (2); Relative two fluid reservoirs (3) by one can two-way no leakage work miniature peristaltic pump (5) be connected by flexible pipe; Fluid reservoir outlet (8) is positioned at fluid reservoir (3) outside radially; O-ring seal (4) is positioned at peripheral the 4th groove (24) of fluid reservoir (3) on balancing head body (2) end face; The axle and the miniature peristaltic pump (5) of motor (18) connect firmly; Flexible pipe (6), (7), (9), (10) all are positioned at corresponding groove on balancing head body (2) end face, seal by fluid sealant between the periphery of its end and the groove; One end of flexible pipe links to each other with miniature peristaltic pump (5), and the other end links to each other with fluid reservoir outlet (8); Detection and control system are made up of survey sensor (25), signal acquisition module (26), wireless signal transmitting module (27), signal receiving module (28), signal processing module (29), motor drive module (30) and power module (31); Wherein survey sensor (25), signal acquisition module (26) and wireless signal transmitting module (27) be all outside balancing head, and signal receiving module (28), signal processing module (29) and motor drive module (30) all are integrated in the circuit board (13); Circuit board (13) is fixed in first groove (14) on balancing head body (2) end face by screw (15); In fastening second groove (17) that is installed on balancing head body (2) end face of electric battery (19) in the power module (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120085825XU CN202083521U (en) | 2011-03-28 | 2011-03-28 | Liquid type on-line dynamic balance head of high-speed rotator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120085825XU CN202083521U (en) | 2011-03-28 | 2011-03-28 | Liquid type on-line dynamic balance head of high-speed rotator |
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| Publication Number | Publication Date |
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| CN202083521U true CN202083521U (en) | 2011-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201120085825XU Expired - Fee Related CN202083521U (en) | 2011-03-28 | 2011-03-28 | Liquid type on-line dynamic balance head of high-speed rotator |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102313626A (en) * | 2011-03-28 | 2012-01-11 | 中国计量学院 | Online dynamic balance head of liquid type high-speed rotor and technological embodiment thereof |
| CN102840949A (en) * | 2011-12-30 | 2012-12-26 | 北京博华信智科技发展有限公司 | Pneumatic liquid type rotor online automatic balance executer |
| CN106090120A (en) * | 2016-07-01 | 2016-11-09 | 北京化工大学 | The pneumatic liquid transfer type active balancing system installed in axle |
| CN108168778A (en) * | 2017-12-07 | 2018-06-15 | 大连理工大学 | A kind of gyrorotor centroid position precision adjustment unit and installation method for solving abrasive dust pollution |
| CN111843525A (en) * | 2020-07-06 | 2020-10-30 | 珠海格力电器股份有限公司 | Rotor assembly, electric spindle and motor |
-
2011
- 2011-03-28 CN CN201120085825XU patent/CN202083521U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102313626A (en) * | 2011-03-28 | 2012-01-11 | 中国计量学院 | Online dynamic balance head of liquid type high-speed rotor and technological embodiment thereof |
| CN102840949A (en) * | 2011-12-30 | 2012-12-26 | 北京博华信智科技发展有限公司 | Pneumatic liquid type rotor online automatic balance executer |
| WO2013097301A1 (en) * | 2011-12-30 | 2013-07-04 | 北京博华信智科技发展有限公司 | Online automatic balancer for air pressure liquid-type rotor |
| CN103874868A (en) * | 2011-12-30 | 2014-06-18 | 北京博华信智科技发展有限公司 | Online automatic balancer for air pressure liquid-type rotor |
| CN102840949B (en) * | 2011-12-30 | 2015-04-01 | 北京博华信智科技股份有限公司 | Pneumatic liquid type rotor online automatic balance executer |
| CN103874868B (en) * | 2011-12-30 | 2016-10-19 | 北京博华信智科技股份有限公司 | Rotating machinery pneumatic liquid formula rotor online automatic balancing device |
| CN106090120A (en) * | 2016-07-01 | 2016-11-09 | 北京化工大学 | The pneumatic liquid transfer type active balancing system installed in axle |
| CN106090120B (en) * | 2016-07-01 | 2018-09-07 | 北京化工大学 | Pneumatic liquid transfer type active balancing system for being installed in axis |
| CN108168778A (en) * | 2017-12-07 | 2018-06-15 | 大连理工大学 | A kind of gyrorotor centroid position precision adjustment unit and installation method for solving abrasive dust pollution |
| CN108168778B (en) * | 2017-12-07 | 2020-09-11 | 大连理工大学 | Gyro rotor mass center position precise adjustment device and method for solving abrasive dust pollution |
| CN111843525A (en) * | 2020-07-06 | 2020-10-30 | 珠海格力电器股份有限公司 | Rotor assembly, electric spindle and motor |
| CN111843525B (en) * | 2020-07-06 | 2021-06-22 | 珠海格力电器股份有限公司 | Rotor assembly, electric spindle and motor |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111221 Termination date: 20130328 |