CN1228829A - Method for immobilizing balancing means in autobalancing device and such autobalancing unit - Google Patents

Method for immobilizing balancing means in autobalancing device and such autobalancing unit Download PDF

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Publication number
CN1228829A
CN1228829A CN 97197496 CN97197496A CN1228829A CN 1228829 A CN1228829 A CN 1228829A CN 97197496 CN97197496 CN 97197496 CN 97197496 A CN97197496 A CN 97197496A CN 1228829 A CN1228829 A CN 1228829A
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roll piece
track
unit
rotation system
mentioned
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CN 97197496
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CN1072785C (en
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约纳斯·尼尔斯阿加德
彼得·金德
安德斯·海格隆德
马格努斯·林德霍尔姆
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SKF AB
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32Details
    • F16F9/36Special sealings, including sealings or guides for piston-rods
    • F16F9/361Sealings of the bellows-type
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/32Correcting- or balancing-weights or equivalent means for balancing rotating bodies, e.g. vehicle wheels
    • F16F15/36Correcting- or balancing-weights or equivalent means for balancing rotating bodies, e.g. vehicle wheels operating automatically, i.e. where, for a given amount of unbalance, there is movement of masses until balance is achieved
    • F16F15/363Correcting- or balancing-weights or equivalent means for balancing rotating bodies, e.g. vehicle wheels operating automatically, i.e. where, for a given amount of unbalance, there is movement of masses until balance is achieved using rolling bodies, e.g. balls free to move in a circumferential direction
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M1/00Testing static or dynamic balance of machines or structures
    • G01M1/30Compensating unbalance
    • G01M1/36Compensating unbalance by adjusting position of masses built-in the body to be tested

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Balance (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

A method for immobilizing balancing means in an autobalancing unit comprising an encased annular track (11) mounted to a rotary system and having balancing means (3) in form of rolling bodies freely moveable along said track for compensating imbalance in the rotary system, and intended for intentionally during rotation of the rotary system to arrest the balancing means (3) in their momentary positions after the balancing function has been established, comprising the steps of arranging at a position spaced apart from said track (11) a bistable lid (9; 17; 18), having a first distinct position (17a, 18a) in which it is situated entirely outside the space (4) housing the rolling bodies (3), and a second distinct position (17b, 18b), in which it is arranged to engage the rolling bodies with an arresting force keeping the balls immobilized, and applying a triggering force to said bistable lid, for moving it from its first to its second position, or applying a force (19) on the autobalancing unit for causing on the rolling bodies a wedging effect, clamping said rolling bodies (3) against at least the track (11) of the unit.

Description

Make fixing method and this autobalancing unit of balanced controls in the automatic balancing arrangement
The present invention relates in a kind of automatic balancing arrangement, realize self balancing method, this automatic balancing arrangement is controlled the vibration that is applied on the dissimilar rotation systems according to the imbalance of rotation system, this device comprises the ring track of sealing, this track is contained on the rotation system and balanced controls is housed, these balanced controls can move freely along above-mentioned track, imbalance with the compensation rotation system, these balanced controls are essentially known type, have many roll pieces that can in above-mentioned track, move, during described system rotates, this roll piece will automatically find its suitable position, angle along the path, so that automatically compensate (rectification) imbalance, make system can operate in significantly reduced level of vibration, the intrinsic imbalance of bucking-out system.The invention still further relates to this autobalancing unit.
Under certain or some rotational velocity, can reach balanced action with this autobalance, when speed when changing afterwards maybe when for example resonance phenomenon or when frequently lighting a fire of disturbance occurring, this roll piece can restart on the path of device " drift ", and therefore this device breaks away from the state of its compensation.
Adopt a lot of application of this automatic balancing arrangement can not change its intrinsic unbalance response again and again, so these application only require that automatic balancing arrangement can compensate this system when starting rotation system for the first time.Thereby the roll piece in this automatic-balancing system just is in same position when reaching state of equilibrium after rotation system is reset.Therefore, best be quicken at rotation system, slow down or even also can the position of rolling element be remained on its equilibrium position when stopping fully in simple mode, thereby this system next time when state of rest is started this system just be in state of equilibrium.So just, can in the whole velocity range of the rotation system that is connected with automatic balancing arrangement, utilize the effect of automatic balancing arrangement.
In the conventional method of leveling wheel by hand, wheel is contained in the rotating shaft of measuring machine, rotating shaft is rotated, allow machine indicate the imbalance of wheel, by hand weight equalizer (counterweight) is contained on the wheel rim according to the value that measures then, and then make rotating shaft with and wheel rim on the wheel turns of weight equalizer is housed, whether need again in wheel rim on weighting material, but until machine the imbalance that reaches permissible degree is shown if seeing.Take off wheel from rotating shaft then, it is contained on the suitable car.This crosses range request rotation system (wheel) is balance in its inactive position, and reduce the unbalanced operating procedure of wheel itself be the manual operations.The result is a wheel, this wheel is subjected to balancing run under the condition that was had at that time of balance, in other words, the method is considered to counterbalance is locked in can provide some of balanced action positions, but also have to be noted that be only under that condition that this saying just reaches in the moment of balance correct.Unloading wheel, delivering to car from measuring rotary shaft of machine, and then any disturbance during mounted in a vehicle means that Balanced system may be subjected to new uncontrollable imbalance and/or do not align, and considers to install the condition of parts when balance of the automobile of wheel.As long as wheel is not subjected to collision and wearing and tearing that weight distribution is changed, this balanced action is suitable especially, but the uneven wear of wheel exterior tire tread or collision will make the wheel distortion, and this says and means that rotation system is that wheel breaks away from its EQUILIBRIUM CONDITION (state).Therefore, for through frayed quick rotation system, the system in the lapping machine rotating shaft for example, or have the system of big intrinsic amplitude, washing machine drum for example, the nonvolatil manual compensation of this rotation system is not satisfied.
US-A-4060009 discloses a kind of autobalancing unit, wherein tackiness agent is configured in the toroidal cavity of the balance ball of packing into.The outside that temporarily electrically-heated coil is placed on system then makes bonding sticking activation, thereby for good and all ball is fixed on the equilibrium position, so that allow the rotation system that this unit is housed for good and all be balanced.Balance when being irreversible this configuration can provide satisfied result, but during turning electrically-heated coil is configured in around the unit and behind activated adhesive, is very time-consuming and complicated work from taking off again.
US-A-3433534 discloses a kind of mechanical mechanism, and the counterbalance that is used for constituting the retainer of an automatic balancing unit part is locked in the equilibrium position, and said mechanism is the spring loaded gripping members of a kind of merogenesis (becoming section), is wedged between the counterbalance.This device also is equipped with the mechanism that discharges roll piece, so that carry out balance again, if desired, this mechanism can be the electromagnetic coil form.This device allows reversibly stable equilibrium part, but mechanical component is many, causes the big and complex structure of volume.
The purpose of this invention is to provide a kind of method of on autobalancing unit, carrying out, thereby can conclude, in whole velocity range, can keep the autobalance effect in reversible or irreversible mode, this autobalance effect is very insensitive for dissimilar disturbances, and can be with determined simple and effective and efficient manner reaches this point as claims.
Be described in more detail the present invention below with reference to the accompanying drawing that schematically illustrates, these accompanying drawings are:
Fig. 1 is the diagrammatic side view of autobalancing unit, and the position of its roll piece random distribution before balance is shown;
Fig. 2 is corresponding figure, illustrates in the fan section that roll piece accumulates in track, is in its equilibrium position;
Fig. 3 is a cross-sectional view, and autobalance is shown, and this device has first embodiment's mechanical mechanism, and this mechanism is the bistable unit form, can be at certain rotational velocity fixing roll piece automatically;
Figure 4 and 5 are partial cross section figure, and the bistable unit that is used to brake rolling member of another enforcement is shown;
Fig. 6 illustrates an embodiment, and wherein autobalancing unit can stand external force or impact, and make the part generation deformation of this device, thereby rolling member is fixed,
Fig. 7 and 8 is partial schematic diagrams, and another fixedly another embodiment of autobalancing unit roll piece is shown, the wherein best use that combines with pyrotechnic composition of tapered socket;
Fig. 9 is a partial view, and an embodiment is shown, and this embodiment can discharge the fixedly power of roll piece, so that carry out reversible configuration;
Figure 10 and 11 illustrates a kind of shell of autobalancing unit and the cross-sectional view of tapered socket, and this tapered socket is suitable for adopting pyrotechnic composition, so that cause the fixed function of roll piece;
Figure 12 is the partial, detailed view of bistable state cover shown in Figure 4.
Fig. 1 is side view, and a kind of autobalancing unit is shown, and this unit is predetermined to be connected in one heart The turning cylinder that will be compensated etc., this unit comprise interior ring 1, with the outside track of interior ring 1 concentric arrangement Ring (rolling ring) 2 and many rolling members 3 that is preferably ball (ball), the number of above-mentioned rolling member Order is so that rolling member can only occupy two segment spaces between the ring 1 and 2. Although it is not shown, But encircle space 4 between 1 and 2 by unshowned end plate closes, between ring and end plate The free volume that is not occupied by rolling member 3 sometimes with liquid or semiliquid for example oil be full of, it is main Purpose is that rolling member is applied damping, draws and drag and lubrication. The unit is in injustice shown in the accompanying drawing Therefore under the weighing apparatus state, upper right quarter 5 places of orbit ring illustrate a kind of influence of unbalance of imagination outside, Wherein this system can but just move on to it at this rolling member to be enough to reach the speed rotation of balance Before the position with compensation influence of unbalance 5. Here, rolling member 3 is in the interval along the outside track ring The unordered position of opening, the situation of foot ball 3 as shown in Figure 1, these rolling members are because exist not Balanced action 5 and be subjected to the effect of parallelogram power, when being in non-equilibrium site, this system Geometric center 6 and center of gravity 7 do not overlap. Therefore, centrifugal force Fc and perpendicular to track (raceway) Power Fn form together the Fr that makes a concerted effort that acts on the ball, accelerate to equilibratory rotating speed in system After, ball 3 just gathers the position relative with the position of influence of unbalance 5, thereby the compensation disturb Unbalance dynamic effect 5, and act on the rolling member centrifugal force Fc with to the vertical effect of track Normal force Fn be equate and opposite direction, and by center of gravity MC and geometric center GC, these are two years old Individual center overlaps now. Therefore, when turning round, system do not cause unbalanced making a concerted effort.
Uneven symbol 5 is illustrated as a sizable zone among the figure, represent one sizable Piece (quality), according to Fig. 2, the rolling member 3 that is in the equilbrium position is gathered in a weak point of track Part in, mutually close. If in the size of influence of unbalance 5 and/or 5 position and the geometry Distance between the heart GC is smaller, and then a series of rolling member should interval De Gengkai, but still the position In the position facing to influence of unbalance 5.
The rotating speed that produces the autobalance effect is postcritical sometimes, but when rotational velocity is reduced to the normal operational speeds of the machine that autobalance is housed, roll piece is not parked in the equilibrium position sometimes, and dissimilar disturbances is for example impacted, weight distribution variation (for example because wearing and tearing) etc. may cause roll piece to leave its equilibrium position, and machine is not being operated under equilibrium conditions under the service speed of balancing speed.
Therefore the present invention proposes a kind of method, be used in a kind of autobalancing unit, this unit can be controlled the vibration that is applied on the various rotation systems according to the imbalance of rotation system, this unit comprises the ring track of sealing, this track is contained on the rotation system and has balanced controls, this mechanism is preferably many can be used to compensate the unbalanced roll piece of rotation system along above-mentioned track is free-moving, thereby this roll piece can be fixed on its instantaneous (at that time) position during rotation system rotates when forming balanced action.
Can determine that so just in a single day rotation system reaches that balance just will remain under the equilibrium conditions and irrelevant with the rotational velocity of rotation system, and not be subjected to the influence of external disturbance (interference).
For self balancing many application, importantly roll piece is fixed on its instantaneous position with reversible manner, if promptly uneven afterwards condition changes, can also reconfigure roll piece, and preferably roll piece is fixed on the equilibrium position in other cases in irreversible mode.
Purpose is to work as it once reaching fixedly roll piece of state of equilibrium instantaneous (at once) during rotation system rotates, in the basic embodiment in first shown in Fig. 3~5, adopt bistable fixed component to reach this fixation, this bistable unit has two different positions, i.e. first and second positions, in primary importance, roll piece can unrestricted motion in the track of autobalancing unit, and in the second place, this bistable unit applies a retention force to roll piece.
First embodiment of this bistable unit is shown in Fig. 3, wherein spring parts 9 are contained in 10 places, position in the autobalancing unit, this position 10 is spaced apart with track (raceway) 11 of unit, ring 12 and form the outer side track ring (rolling ring) 13 of integral units through the sidewall 14 of a transition in this unit comprises wherein forms the annular space 4 that many roll pieces 3 are housed.The another side of unit is by end plate 15 sealings, and this end plate is contained on the unit in suitable non-leakage mode.
Shown in the first half of Fig. 3, mechanical bistable spring formula parts 9 can remain on non-working position by clamp 16, can retracting spring spare 9 when this clamp triggers for example being subjected to external impact etc.When disposing by as shown in the figure mode, can also select this configuration mode, make parts 9 to rotate caused centrifugal action and automatically trigger, and move to working position by supercritical state.
Fig. 4 schematically illustrates the preferred embodiment of bistable state fixed mechanism, and these parts are designed to side cover 17 in this case.This bistable state lid 17 has two diverse locations, promptly in Fig. 5 with the primary importance 17a shown in the solid line and the second diverse location 17b that is shown in broken lines.When bistable state lid 17 is positioned at its primary importance 17a, roll piece does not engage, therefore can be along its track unrestricted motion, but after the core that moving cover 17 is tried hard to recommend in triggering is moved into the second diverse location 17b, its core just engages with roll piece 3, clamps roll piece thus, makes it be locked in its current position, promptly against track, also may be against the sidewall 14 of the unit relative with cover 17 positions.Cover 17 in this embodiment plays a part that outer side wall of autobalancing unit, but it can also form this fixation, makes bistable state cover 17 be positioned at the inboard of the not shown sidewall of unit.
Figure 12 schematically illustrate in the suitable groove how bistable state lid 17 to be contained in outer side track ring 13 and interior ring 12 and cover 17 on the side surface of roll piece 3, how to serve as a contrast for example rubber of last layer flexible liner 18, can significantly reduce the fixedly needed power of roll piece thus, promptly the bistable state lid acts on the power on the roll piece.Relative sidewall (not shown) with corresponding inner liner can also be set for this purpose, so that further reduce needed power.
Fig. 5 schematically illustrates another embodiment's bistable state cover 19, and these parts only extend in a part of space between ring 12 and 13 in this example.In this example, the effect of bistable state lid is similar to the effect of lid shown in Figure 4, but this bistable state lid 18 can not form the outer side wall of unit certainly, because this unit is not closed.In this case, bistable state lid 18 and relative sidewall preferably are lined with flexible liner, and with the retention force that need to reduce, the zone that engages roll piece 3 at least during fixing adds the cushions.
Fig. 6~11 illustrate other embodiments, and these embodiments can make roll piece be fixed on the position of requirement, promptly are fixed on to make rotation system reach the position of balance.
This certain methods that fixedly relates to the power that applies vertically basically to autobalancing unit, above-mentioned power can be used for making track as shown in Figure 6 and/or encapsulate the side surface generation deformation of the shell of roll piece.The first half at this figure shows when roll piece reaches state of equilibrium, and power 19 acts on the sidewall 15 of the shell that for example encapsulates roll piece 3, and shown in the Lower Half of this figure, this power makes sidewall 15 that deformation 20 take place, and can prevent roll piece to be moved further thus.For this reason, preferably be provided with certain preformed deformation indicating section on the side plate, to guarantee steadily fixedly roll piece.
Fig. 7 is the partial cross section figure of signal, shows the part of autobalancing unit, and wherein roll piece 3 can be compressed against on the orbit ring 13, thereby fixing by conical socket (cover for seat) 21, this socket is inserted between roll piece and the interior ring 12 vertically.In this embodiment, conical socket 21 can utilize the pyrotechnic composition 22 of filling to move it.This embodiment's shell also is shown, and the partial cross section with larger proportion illustrates conical socket 21 in Figure 11 in Figure 10.
Device shown in Figure 8 can also cooperate roll piece 3 and orbit ring 13 in the mode that is similar to Fig. 7 embodiment in conjunction with conical socket 21.In this example, socket 21 has circumferential groove 21a, inserts the end of spring part 23 in this groove, and this spring part makes conical socket 21 fix in position.And, in this example, conical socket preferably moves on to the fixed position by the pyrotechnic composition (not shown) of filling, and this pyrotechnic composition is suitable for only carrying out instantaneous set part in the time of second from lighting beginning, upwards is urged to fixedly roll piece until conical socket 21.
In this embodiment, spring part 23 also can play the sidewall of shell.
Fig. 9 illustrates the figure corresponding to Fig. 8, and the device of embodiment's reverse that can make Fig. 8 is shown.On the cell enclosure wall, form an air passageways 24 and just can reach this point.When driving into conical socket when the blast of the pyrotechnic composition of filling, air can be overflowed by air duct 24, thereby prevent from the space 4 of roll piece 3 of packing into, to form high pressure, when needs unit balance again, can introduce forced air etc. with air duct 24, make spring part 23 outwards outstanding, conical socket 21 is return in the position of equilibrium position from its locking roll piece 3.Best is, make air duct 24 be configured to and be designed to can air etc. begin introduce and produce certain delay between enclosure interior is discharged, move to the another location until conical socket from an one position.
For the variation of using bistable device shown in Fig. 3~5, above-mentioned explanation is still effective.
As mentioned above, be shown specifically a kind of shell 25 of autobalancing unit in Figure 10, this autobalancing unit adopts the pyrotechnic composition powder charge to promote conical socket, and this socket bears against on the track of orbit ring 13 roll piece.In this embodiment, ring 12 and outside track ring 13 in illustrating, these cyclic groups originally are equivalent to the embodiment that Fig. 7 schematically illustrates, and these rings form one whole by middle fixed sidewall (retaining wall).This shell has a circumferential groove 26 that is preferably formed in the annular on the fixed sidewall 14, and this groove is used to receive the pyrotechnic composition powder charge (not shown) of annular.Formation is passed fixed sidewall 14 and is entered the opening 27 of groove 26.This opening can so that make this charging explosion, drive conical socket for touching the pyrotechnic composition powder charge when pyrotechnic composition is filled in the groove.
Conical socket 21 is illustrated in greater detail in Figure 11, half cross section of socket only is shown in the figure, on scheming, can see, this taper shape socket 21 has the external envelope surface 28 of taper and is positioned at the flange 29 of a side, this flange is suitable for inserting in the groove 26 of shell, therefore play a part piston, when making the pyrotechnic composition charging explosion, just axially outwards drive this flange.
That the invention is not restricted to schematically illustrate in the accompanying drawings and with reference to the embodiment of this description of drawings, can imagine various remodeling and modification within the scope of the appended claims.

Claims (15)

1. method that is used on a kind of autobalancing unit, the vibration that is applied on the various rotation systems is controlled in this unit according to the imbalance of rotation system, this unit comprises the ring track (11) of sealing, this track is contained on the rotation system and has the balanced controls that shape is a roll piece (3), this roll piece can be along above-mentioned track unrestricted motion, with the imbalance in the compensation rotation system, specially make balanced controls (3) be fixed on its instantaneous position later on reaching balanced action during this unit is predefined in rotation system and rotates, the method is characterized in that:
Bistable state lid (9 of position configuration at spaced apart above-mentioned track (11); 17; 18), this lid has first specific position (17a, 18a) and second specific position (17b, 18b), is positioned at the outside in the space (4) of the roll piece of packing into (3) fully at this lid of primary importance, and in the second place, this lid can engage roll piece with retention force, thereby keeps stone-dead; With
Above-mentioned bistable state lid is applied a driving force, thereby make it move on to the second place from its primary importance.
2. the method for claim 1 is characterized in that, adopts the bistable state lid (17) of toroidal surface shape.
3. the method for claim 1 is characterized in that, adopts the annular element (18) of taper to make above-mentioned bistable state lid.
4. as each described method in the claim 1~3, it is characterized in that, to bistable state lid (17,18) its second specific position (17b, in the time of 18b) fixedly on the surface of contact roller moving part lining with flexible material (17C), so that reduce the fixedly needed power of roll piece.
5. method as claimed in claim 4, wherein, bistable state lid (17,18) is configured in the outside in the space (4) of the roll piece of packing into (3) vertically, it is characterized in that, the liner of flexible material is provided for the sidewall (14) relative of autobalancing unit, so that further reduce the fixedly required power of roll piece with above-mentioned bistable state lid (17,18).
6. as each described method in the claim 1~5, wherein, the encapsulated space of roll piece (4) has the wall that at least one sealing is provided with, it is characterized in that, air passageways (24) is set, this passage passes the above-mentioned wall of the encapsulated space (4) of roll piece (3), so that flow through air when above-mentioned bistable state is covered (9,16,17) displacement.
7. method that is used on a kind of autobalancing unit, the vibration that is applied on the various rotation systems is controlled in this unit according to the imbalance of rotation system, this unit comprises the ring track (4) of sealing, this track is contained on the rotation system, and have balanced controls that shape is a roll piece (3), this roll piece can be along above-mentioned track unrestricted motion, with the imbalance in the compensation rotation system, this unit is predefined in and specially balanced controls (3) is fixed on its instantaneous position during rotation system rotates after reaching balanced action, it is characterized in that, on autobalancing unit, apply power (19), so that make roll piece be subjected to being fixed to effect, thereby above-mentioned roll piece (3) is pressed against on the track at least (11) of unit.
8. method as claimed in claim 7, it is characterized in that, sidewall lid (15) application of force (19) to autobalancing unit makes above-mentioned sidewall lid (15) that deformation (20) take place, and goes up and preferably is fixed on the opposing sidewalls (14) of unit from roll piece (3) being fixed on track (11).
9. method as claimed in claim 8, it is characterized in that, adopt conical socket (21), this jack configurations just can make roll piece (3) be pressed against on the track (11) of outside track ring (13) along the above-mentioned conical socket of axis shift between the interior ring (12) of roll piece (3) and unit.
10. method as claimed in claim 9 is characterized in that, makes a spring part (23) and above-mentioned conical socket (21) coupling, and this spring part is connected in this socket and keeps this socket in place.
11. method as claimed in claim 10 is characterized in that, adopts above-mentioned spring part (23) to do a cover, the side away from fixed sidewall (14) of this cover closed casing.
12. as each described method in the claim 7~11, it is characterized in that, configuration air passageways (24), this passage passes the wall in the space (4) of encapsulation roll piece (3), so that flow through air when above-mentioned conical socket displacement (21).
13., it is characterized in that detonating to produce by the pyrotechnic composition (22) that makes filling compresses above-mentioned power (19) in place with roll piece as each described method in the claim 7~12.
14. autobalancing unit, be used for controlling the vibration that is applied on each rotation system according to the imbalance of rotation system, it comprises the have ring track encapsulated space (4) of (11), this track is contained on the rotation system and has the balanced controls that shape is a roll piece (3), this roll piece can be along above-mentioned track unrestricted motion, with the imbalance in the compensation rotation system, wherein roll piece is configured to can be fixed on instantaneous position when reaching balanced action during rotation system rotates, it is characterized in that, bistable device (9 is set in the shell of autobalancing unit, 17,18), this bistable device has and can make roll piece (3) state free-moving primary importance (171 in the ring track (11) thereon, 18a) and make roll piece (3) press against at least one fixture (11,14) second place (17b on, 18b).
15. autobalancing unit, be used to follow and control the vibration that is applied on the various rotation systems according to the imbalance of rotation system, it comprises the have ring track encapsulated space (4) of (11), this ring track is contained on the rotation system and has the balanced controls that shape is a roll piece (3), this roll piece can be along above-mentioned track unrestricted motion, with the imbalance in the compensation rotation system, wherein roll piece is configured to can be secured in place in its instantaneous position after reaching balanced action during rotation system rotates, it is characterized in that, described unit is equipped with the device (26) of pyrotechnics filler (22) that are used to pack into, this pyrotechnic composition is arranged to and can be detonated, so that make the parts (15 that form an autobalancing unit part; 21) move, thereby make roll piece by being fixed to the power fix in position.
CN 97197496 1996-08-27 1997-08-27 Method for immobilizing balancing means in autobalancing device and such autobalancing unit Expired - Fee Related CN1072785C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9603105A SE9603105D0 (en) 1996-08-27 1996-08-27 A method in an autobalancing device
SE96031059 1996-08-27
SE9603105-9 1996-08-27

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Publication Number Publication Date
CN1228829A true CN1228829A (en) 1999-09-15
CN1072785C CN1072785C (en) 2001-10-10

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EP (1) EP0918958A1 (en)
JP (1) JP2000501488A (en)
CN (1) CN1072785C (en)
AU (1) AU4037197A (en)
DE (1) DE19781954T1 (en)
SE (1) SE9603105D0 (en)
WO (1) WO1998009096A1 (en)

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DE19781954T1 (en) 1999-09-23
JP2000501488A (en) 2000-02-08
CN1072785C (en) 2001-10-10
EP0918958A1 (en) 1999-06-02
AU4037197A (en) 1998-03-19
WO1998009096A1 (en) 1998-03-05
SE9603105D0 (en) 1996-08-27

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