CN102313626A - Online dynamic balance head of liquid type high-speed rotor and technological embodiment thereof - Google Patents
Online dynamic balance head of liquid type high-speed rotor and technological embodiment thereof Download PDFInfo
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- CN102313626A CN102313626A CN201110075722A CN201110075722A CN102313626A CN 102313626 A CN102313626 A CN 102313626A CN 201110075722 A CN201110075722 A CN 201110075722A CN 201110075722 A CN201110075722 A CN 201110075722A CN 102313626 A CN102313626 A CN 102313626A
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Abstract
The invention relates to an online dynamic balance head of a liquid type high-speed rotor and a technological embodiment thereof. The online dynamic balance head comprises a balance head body (2), seal rings (4), a micro peristaltic pump (5), hoses (6), (7), (9) and (10), a motor, a front end cover, a rear end cover, an air exhaust joint, a battery pack, and a detection and control system; the balance head body (2) is fastened with a rotor shaft (1) through a screw, and the end face of the balance head body (2) is provided with four or more liquid storage chambers (3) which are arranged in a central symmetry manner and are consistent in size; water or other liquid of which the volume accounts for half that of the volume of each liquid storage chamber (3) is filled into each liquid storage chamber (3), and two opposite liquid storage chambers (3) are communicated through hoses by means of the micro peristaltic pump (5) capable of working in a bidirectional and leakless manner; and each seal ring (4) is located in a groove on the periphery of each liquid storage chamber (3). In the invention, the micro peristaltic pump (5) is used for precisely regulating and balancing weight distribution in a plane to realize online dynamic balance, and the online dynamic balance head has the characteristics of simple structure, fast response, high precision, wide application prospect and the like.
Description
Technical field
The present invention relates to a kind of rotor on-line dynamic balancing head and realization thereof technology, especially a kind of liquid-type high speed rotor on-line dynamic balancing head and technology thereof realize.
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 with 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 online dynamic balancing technique.
In the past few decades, there are online balancing technique of multiple rotor and method to be suggested.Mainly contain in principle 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 on rotor, increases the weight of or goes heavily, to change the mass distribution in the rotor balancing plane, reaches the purpose of on-line dynamic balancing.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 the rotor on-line 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 healthy with the harm operating personnel.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 the rotor on-line 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, expense is high, 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, through the distribution of quality in the real time altering balancing head, thereby realizes the rotor on-line dynamic balancing.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 is shown in U.S. Pat 3950897 at first adopts spray gun that micro liquid is sprayed in the cavity volume in the balancing head 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, in the just compelled termination of 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, gets into another cavity volume through pipeline, meets to be 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 by the Vande Vegte of University of Toronto first, 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 through 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 through 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 objective of the invention is to propose a kind of liquid-type high speed rotor on-line dynamic balancing head and technology realization thereof.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 scheme that the present invention adopts is: the balancing head body 2 of collar plate shape is placed on the armature spindle 1, and fastening through 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.Fluid reservoir 3 interior equivalent charge into volume and are about its volume half the water or other liquid.Two relative fluid reservoirs 3 are connected through flexible pipe by a miniature peristaltic pump 5.O-ring seal 4 is positioned at the groove 24 of fluid reservoir 3 peripheries on balancing head body 2 end faces.Balancing head body 2 all connects firmly through 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 through 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 groove 21 on balancing head body 2 end faces through 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 grooves on balancing head body 2 end faces.Seal through fluid sealant between the periphery of hose 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 the groove 14 on balancing head body 2 end faces through screw 15.In the electric battery 19 fastening 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 present invention proposes and the technology that realizes thereof be not based on there being the miniature peristaltic pump of leakage 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 prior art 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 receive 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 of the present invention 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 of the present invention 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. soft road, 8. fluid reservoir outlet, 11.15.16.20. screw, 12. rear end caps, 13. circuit boards; 14.17.21.24. groove, 18. motors, 19. electric battery, 22. front shrouds, 23. air extraction connectors; 25. survey sensor, 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 lines, 34. pump rotors.
Embodiment
Below be further described through embodiment and accompanying drawing thereof.
Like Fig. 1, Fig. 2 and shown in Figure 4, elder generation's equivalent in each fluid reservoir 3 charges into volume and is about its volume half the water or other liquid, and through 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 through screw 16, and with the rotor high speed rotating.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 through wireless signal transmitting module 27 and signal receiving module 28 after signal acquisition module 26 collections and pre-service.29 what and directions of confirming 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 through 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 following: 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 (suppose level direction be 0 degree) to the right; And lay particular stress on 10 grams, then motor drive module 29 drives respectively two miniature peristaltic pumps 5 that two motors 18 of being communicated with I and III number, II and IV fluid reservoir and drive 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 (3)
1. a liquid-type high speed rotor on-line dynamic balancing head and technological realization thereof; 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.
2. according to claim 1 described liquid-type high speed rotor on-line dynamic balancing head, it is characterized in that: 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 the groove (14) on the balancing head body (2) through screw (15); In the fastening groove (17) that is installed on the balancing head body (2) of electric battery (19) in the power module (31).
3. according to claim 1 described liquid-type high speed rotor on-line dynamic balancing head, it is characterized in that: the balancing head body (2) of collar plate shape is anchored on the armature spindle (1) through screw (16); Balancing head body (2) all connects firmly through 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); The interior equivalent of fluid reservoir (3) charges into volume and is about its volume half the water or other liquid; Relative two fluid reservoirs (3) by one can two-way no leakage work miniature peristaltic pump (5) be connected through flexible pipe; Fluid reservoir outlet (8) is positioned at fluid reservoir (3) outside radially; O-ring seal (4) is positioned at the peripheral 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 grooves on balancing head body (2) end face, seal through 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).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110075722 CN102313626B (en) | 2011-03-28 | 2011-03-28 | Online dynamic balance head of liquid type high-speed rotor and technological embodiment thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110075722 CN102313626B (en) | 2011-03-28 | 2011-03-28 | Online dynamic balance head of liquid type high-speed rotor and technological embodiment thereof |
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| Publication Number | Publication Date |
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| CN102313626A true CN102313626A (en) | 2012-01-11 |
| CN102313626B CN102313626B (en) | 2013-06-12 |
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| CN 201110075722 Expired - Fee Related CN102313626B (en) | 2011-03-28 | 2011-03-28 | Online dynamic balance head of liquid type high-speed rotor and technological embodiment thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105021352A (en) * | 2015-07-08 | 2015-11-04 | 沈阳建筑大学 | Main shaft built-in mechanical on-line dynamic balancing system |
| CN105127888A (en) * | 2015-07-10 | 2015-12-09 | 西安交通大学 | Liquid injection and draining type on-line dynamic balance head structure for high rotation speed conditions |
| CN105910757A (en) * | 2016-07-04 | 2016-08-31 | 盐城工学院 | Screw fine-debugging mechanism of dynamic balance test bench for rigid rotor |
| CN109406054A (en) * | 2018-11-21 | 2019-03-01 | 成都航天万欣科技有限公司 | A kind of adjustment of tubular construction part quality center of mass and detection device |
| CN111451840A (en) * | 2020-04-08 | 2020-07-28 | 秦皇岛齐二数控机床有限公司 | High-speed self-balancing rotary table |
| CN112117875A (en) * | 2020-10-19 | 2020-12-22 | 长春工业大学 | Novel liquid type rotor dynamic balance head structure |
| CN115333314A (en) * | 2022-09-21 | 2022-11-11 | 南昌三瑞智能科技有限公司 | Motor rotor capable of efficiently adjusting dynamic balance and dynamic balance adjusting method |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105021352A (en) * | 2015-07-08 | 2015-11-04 | 沈阳建筑大学 | Main shaft built-in mechanical on-line dynamic balancing system |
| CN105021352B (en) * | 2015-07-08 | 2017-10-20 | 沈阳建筑大学 | A kind of main shaft Built-in mechanical on-line dynamic balancing system |
| CN105127888A (en) * | 2015-07-10 | 2015-12-09 | 西安交通大学 | Liquid injection and draining type on-line dynamic balance head structure for high rotation speed conditions |
| CN105127888B (en) * | 2015-07-10 | 2017-10-20 | 西安交通大学 | A kind of liquid injection formula on-line dynamic balancing header structure being used under high speed conditions |
| CN105910757A (en) * | 2016-07-04 | 2016-08-31 | 盐城工学院 | Screw fine-debugging mechanism of dynamic balance test bench for rigid rotor |
| CN109406054A (en) * | 2018-11-21 | 2019-03-01 | 成都航天万欣科技有限公司 | A kind of adjustment of tubular construction part quality center of mass and detection device |
| CN109406054B (en) * | 2018-11-21 | 2024-04-12 | 成都航天万欣科技有限公司 | Cylindrical structural member mass center adjusting and detecting equipment |
| CN111451840A (en) * | 2020-04-08 | 2020-07-28 | 秦皇岛齐二数控机床有限公司 | High-speed self-balancing rotary table |
| CN111451840B (en) * | 2020-04-08 | 2021-11-30 | 秦皇岛齐二数控机床有限公司 | High-speed self-balancing rotary table |
| CN112117875A (en) * | 2020-10-19 | 2020-12-22 | 长春工业大学 | Novel liquid type rotor dynamic balance head structure |
| CN112117875B (en) * | 2020-10-19 | 2024-05-07 | 长春工业大学 | Liquid type rotor dynamic balance head structure |
| CN115333314A (en) * | 2022-09-21 | 2022-11-11 | 南昌三瑞智能科技有限公司 | Motor rotor capable of efficiently adjusting dynamic balance and dynamic balance adjusting method |
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