CN205618603U - First structure of automatic balance based on electromagnetic drive - Google Patents
First structure of automatic balance based on electromagnetic drive Download PDFInfo
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- CN205618603U CN205618603U CN201620232873.XU CN201620232873U CN205618603U CN 205618603 U CN205618603 U CN 205618603U CN 201620232873 U CN201620232873 U CN 201620232873U CN 205618603 U CN205618603 U CN 205618603U
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- rotor
- balance weight
- autobalance
- electromagnetic drive
- service portion
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Abstract
The utility model provides a first structure of automatic balance based on electromagnetic drive, is formed with the cavity including each other with shaft fit and fixed connection's rotation axis and casing between rotation axis and the casing, still including respectively with coaxial complex stator of rotation axis and rotor, and electromagnetic clutch, stator, rotor and electromagnetic clutch arrange in the cavity respectively, at least relative rotation axle of rotor and/or casing and/or stator rotate, electromagnetic clutch includes elastic component, excitation coil and balancing piece, the balancing piece is at least rotatable and portable, and corresponds the rotor tip setting, and it corresponds the rotor tip and is provided with the service portion, and the balancing piece passes through the service portion and rotates along with the rotor, the service portion is pressed to elastic component elasticity on the rotor, makes the balancing piece rotate along with the rotor, the balancing piece is inhaled to excitation coil circular telegram magnetism, makes it break away from the rotor. The utility model has the characteristics of simple structure is reasonable, small, compact structure, precision high, good, the short response time, efficient of stability.
Description
Technical field
This utility model relates to rotating machinery dynamic balance field, particularly to a kind of based on Electromagnetic Drive from
Dynamic balancing head structure.
Background technology
Rotating machinery is vibration to be produced when high-speed cruising, and the vibration caused due to rotor unbalance is rotation
Turning a kind of phenomenon most commonly seen in mechanical vibration, according to statistics, the vibration that there are about 70% is due to rotor originally
The mass unbalance of body causes.Although large rotating machinery all did single rotor balance at maker now,
But the condition being balanced from maker due to on-the-spot service condition is different, shafting balancing state may be by
In reasons such as units' installation, service condition change, flow passage component fouling, abrasion, even parts fly off
Change.Therefore, field balancing becomes the important process ensureing unit safety stable operation, and uses
Advanced balancing technique and equipment will improve balance efficiency, reduce unit starting number of times, bring huge warp
Ji benefit.
Balance method currently mainly be rotor increased the weight of in the state shut down by the way of artificial or
Duplicate removal processes, and repeatedly opens car test, shuts down and add/duplicate removal, until satisfied.The balance side of this routine
Method is the direct approach eliminating or slowing down rotor unbalance vibration, is also effectively means, but in work
Cheng Yingyong also has some limitation.As: need repeatedly to shut down plus/minus test mass, equilibration time length, expense
High；The imbalance and the most unbalance etc. of rotor that produce working conditions change can not effectively process.Although sending out
Dynamic balancing technique without test mass in exhibition is expected to reduce balance start-stop time, but still cannot be avoided shutdown.It is visible,
Automatic balancing technology can realize rotating machinery and balance in non-stop-machine running, reduces vibration in time,
It it is the important development direction of dynamic balancing technique.
It is complete that Chinese patent literature CN201177550Y discloses a kind of friction-type on January 7th, 2009
Automatic high speed chief axis on-line dynamic poise device and control system thereof, and specifically disclose:
Bascule uses symmetrical structure to design on the whole, symmetrical centered by engaging gear ring, bag
Include shell, connecting shaft, balance ring and balance ring and drive actuator four part；Wherein:
Shell includes bearing and cylindrical shell, end cap and the bearing cap be made up of NULL, end cap,
Bearing cap and bearing are respectively arranged with two of symmetry, housing, end cap and bearing cap three's secure fit；
Connecting shaft includes central shaft and annular engagement gear ring, and the both ends of the surface of engagement gear ring are provided with triangled tip
Tooth-like clutch blade tooth；Engaging tooth snare fills on center shaft, and the two is fastenedly connected；One end of central shaft sets
It is equipped with the screw rod for being fastenedly connected with high-speed main spindle；
Balance ring includes the balance ring body being made up of soft magnetic materials and the balance ring body being made up of NULL,
Annular balance ring body is sleeved on balance ring body, and the two is fastenedly connected composition balance ring；Annular balances
It is provided with the amount of unbalance for sensor reading signal and correction high-speed main spindle amount of unbalance with ring to lack
Mouthful, balance ring body is provided with centre bore, and its medial surface is provided with triangled tip tooth-like clutch blade tooth, with engagement
Centered by gear ring, the balance ring set of two symmetries fills on center shaft, and the centrage of the two overlaps, and balances ring
Can be the most inside and outside mobile, when moving inward, the triangle outside balance ring loses tooth-like clutch
Blade tooth and the triangled tip tooth-like clutch blade tooth engagement engaged outside gear ring, separate both when being displaced outwardly；
Balance ring drives actuator to include electric magnet, speed reduction bearing, elastic component and elastic component back-up ring, electricity
Magnet includes again electromagnet coil, be made up of NULL electric magnet back-up ring, it is made up of soft magnetic materials
Electric magnet skeleton and electric magnet sleeve；Electric magnet skeleton is provided with centre bore, annular electric magnet back-up ring
Being sleeved on the inner side of electric magnet skeleton, electromagnet coil is wrapped on electric magnet skeleton, electromagnet sleeve jacket casing
On electric magnet skeleton and electric magnet back-up ring, electromagnet coil is encapsulated in by electric magnet skeleton, electric magnet
In the inner space that sleeve is closed with electric magnet back-up ring；The electric magnet of two symmetries is respectively fixedly connected with at end
The medial end of lid；Speed reduction bearing entirety is embedded in electric magnet skeleton, the two tight fit, and deboost axle
Inside bearing outer-ring with electric magnet skeleton inside in approximately the same plane, higher than outside it inside speed reduction bearing inner ring
Inside circle, when balance ring is displaced outwardly, can be only moved at the inner side of speed reduction bearing inner ring；Elastic component keeps off
Snare on center shaft, the two loose fit, abut against one inside the outside of elastic component back-up ring and bearing inner race
Rising, one end of cylindrical elastomer part is fixed on elastic component back-up ring, and the other end is enclosed within the outboard end of balance ring body
Portion, after assembling, elastic component has pre compressed magnitude, and under the effect of precompression, balance ring moves inward and engages
Gear ring fastening engagement.
This structure is complicated, and degree of regulation is relatively low, therefore, it is necessary to make further improvements.
Utility model content
The purpose of this utility model aim to provide a kind of simple and reasonable, volume is little, compact conformation, essence
Spend height, good stability, response time is short, efficiency is high, can realize not shutting down the base of on-line dynamic balancing compensation
In the autobalance header structure of Electromagnetic Drive, to overcome weak point of the prior art.
A kind of based on Electromagnetic Drive the autobalance header structure designed by this purpose, including mutually coaxially joining
Close and fix the rotary shaft and housing connected, between rotary shaft and housing, being formed with chamber；It is characterized in that:
Also include stator and the rotor coordinated respectively, and electromagnetic clutch with rotating shaft coaxle；Described stator, turn
Son and electromagnetic clutch be respectively placed in chamber, described rotor at least relative rotation axi and/or housing and/or
Stator rotation；Described electromagnetic clutch includes elastic component, magnet exciting coil and balance weight, and described balance weight is extremely
Few rotatable and removable, and the setting of respective rotor end, its respective rotor end is provided with service portion,
Balance weight is rotated with rotor by service portion, and described elastic component elasticity pressing service portion, on rotor, makes to put down
Weighing apparatus block rotates with rotor, described magnet exciting coil energising magnetic balance weight so that it is depart from rotor.
Furtherly: between described elastic component and/or magnet exciting coil and balance weight, have certain interval, balance weight
Move in described interstice coverage.
Furtherly: described balance weight has eccentric mass, under magnet exciting coil off-position, balance weight with
Rotor rotates, and under magnet exciting coil "on" position, balance weight relative rotor is static.
Furtherly: described rotating shaft surface is coaxially equipped with axle sleeve, and has certain interval each other,
Described boss surfaces is coaxially fixed with the permanent magnet of annular, and rotor arranges two, and fixes symmetrically
In permanent magnet two ends, described electromagnetic clutch arranges two sets, and symmetrical is placed in two rotor tips.
Furtherly: described housing is made up of outer cover, the first end cap and the second end cap, wherein, enclosing cover
Body is cylinder, and the first end cap and the second end cap close off outer cover two ends, and are individually fixed in rotation
On axle, described stator is fixed on outer cover inwall.
Furtherly: elastic component and/or the magnet exciting coil correspondence of the two described electromagnetic clutchs of set are fixed on first
On end cap and the second end cap；It is provided with bearing between described axle sleeve two ends and the first end cap and the second end cap.
Furtherly: described rotor is correspondingly arranged in inside stator, and have certain interval each other.
Follower structure between balance weight and rotor can have following three schemes:
Scheme one: described service portion is shaggy rubbing surface.
Scheme two: described service portion is formed by some teeth radially extended annular is uniform, described rotor-end
Portion's correspondence annular is evenly equipped with some teeth being engaged with.
Scheme three: described service portion is formed by some salient points annular is uniform, described rotor tip correspondence annular
It is evenly equipped with some shrinkage pools mated with salient point；Or, described service portion is formed by some shrinkage pools annular is uniform,
Described rotor tip correspondence annular is evenly equipped with some salient points mated with shrinkage pool.
This utility model realizes on-line dynamic balancing compensation by arranging electromagnetic clutch, and elastic component effect balances
Block rotates with rotor, and magnet exciting coil energising magnetic balance weight departs from rotor, and wherein balance weight has eccentric matter
Amount, by controlling the angular displacement of balance weight, it is possible to the compensation quality required for generation；Work is passed through
Power on/off operation to magnet exciting coil achieves the goal；It has simple and reasonable, volume is little, structure is tight
Gather, precision height, good stability, response time is short, efficiency is high feature.
Accompanying drawing explanation
Fig. 1 is the sectional view of this utility model first embodiment.
Fig. 2 is the structural representation of balance weight in this utility model first embodiment.
Fig. 3 is the structural representation of balance weight in this utility model the second embodiment.
Fig. 4 is the close-up schematic view that this utility model the second embodiment balance weight separates with rotor.
Fig. 5 is the close-up schematic view that this utility model the second embodiment balance weight is combined with rotor.
Fig. 6 is the structural representation of balance weight in this utility model the 3rd embodiment.
Fig. 7 is the close-up schematic view that this utility model the 3rd embodiment balance weight separates with rotor.
Fig. 8 is the close-up schematic view that this utility model the 3rd embodiment balance weight is combined with rotor.
In figure: 1 is the first end cap, 2 is bearing, and 3 is elastic component, and 4 is magnet exciting coil, and 5 is packing ring,
6 is balance weight, and 6.1 is service portion, and 7 is stator, and 8 is rotor, and 9 is permanent magnet, and 10 is back-up ring,
11 is the second end cap, and 12 is sleeve, and 13 is axle sleeve, and 13.1 is limiting section, and 14 is rotary shaft, 15
For outer cover.
Detailed description of the invention
Below in conjunction with the accompanying drawings and this utility model is further described by embodiment.
First embodiment
Seeing Fig. 1 and Fig. 2, this autobalance header structure based on Electromagnetic Drive, including mutually coaxially joining
Close and fix the rotary shaft 14 and housing, electromagnetic clutch connected, and coaxial with rotary shaft 14 respectively
The stator 7 coordinated and rotor 8.It is formed with chamber between rotary shaft 14 and housing；Stator 7, rotor 8
It is respectively placed in chamber with electromagnetic clutch, rotor 8 at least relative rotation axi 14, housing and stator 7 turns
Dynamic；Electromagnetic clutch includes elastic component 3, magnet exciting coil 4 and balance weight 6, and balance weight 6 is the most rotatable
With removable, and respective rotor 8 end is arranged, and its respective rotor 8 end is provided with service portion 6.1,
Balance weight 6 is rotated with rotor 8 by service portion, and elastic component 3 elastic pressing service portion 6.1 is in rotor 8
On, make balance weight 6 rotate with rotor 8, magnet exciting coil 4 is energized magnetic balance weight 6 so that it is departs from and turns
Son 8.
Specifically: between elastic component 3 and magnet exciting coil 4 and balance weight 6, have certain interval, balance weight
6 move in interstice coverage；The preferred spring of elastic component 3.
Balance weight 6 has eccentric mass, by controlling balance weight 6 angular displacement, it is possible to produce required
Compensation quality；Under magnet exciting coil 4 off-position, balance weight 6 rotates with rotor 8, magnet exciting coil 4
Under "on" position, balance weight 6 relative rotor 8 is static.
Rotary shaft 14 surface is coaxially equipped with axle sleeve 13, and has certain interval each other, axle sleeve 13 table
Face is coaxially fixed with the permanent magnet 9 of annular, and rotor 8 arranges two, and is fixed on permanent symmetrically
Magnet 9 two ends, electromagnetic clutch arranges two sets, and symmetrical is placed in two rotor 8 ends.Left side
The rotor 8 left side internal ring portion left end that withstands on axle sleeve 13 limiting section 13.1 on realize location, right side
Rotor 8 realize axial restraint by the bearing 2 of sleeve 12 with right side, two rotors 8 and permanent magnet 9
It is arranged between limiting section 13.1 and sleeve 12.
Housing is made up of outer cover the 15, first end cap 1 and the second end cap 11, wherein, outer cover 15 in
Cylinder, the first end cap 1 and the second end cap 11 close off outer cover 15 two ends, and were respectively adopted
Cooperation of being full of is fixed in rotary shaft 13, and stator 7 is fixed on outer cover 15 inwall, is realized by back-up ring 10
It axially positions；Outer cover 15 regulates its amount of axially engaging by packing ring 5.
Elastic component 3 and magnet exciting coil 4 correspondence of two set electromagnetic clutchs are fixed on the first end cap 1 and second
On end cap 11；It is provided with bearing 2 between axle sleeve 13 two ends and the first end cap 1 and the second end cap 11, and
The left end of axle sleeve 13 realizes a left side and the fixing of orientation up and down by the bearing 2 in left side and the first end cap 1,
The right-hand member of axle sleeve 13 realizes the right side and the fixing of orientation up and down by the bearing 2 on right side and the second end cap 11.
Rotor 8 is correspondingly arranged in inside stator 7, and has certain interval each other, and stator 7 is the most not
Rotate.
The service portion 6.1 of the present embodiment is shaggy rubbing surface, utilizes frictional force, makes balance weight 6
Can rotate with rotor 8, it is achieved dynamic balancing regulates.
Its operation principle:
Balance weight 6, elastic component 3 and magnet exciting coil 4 constitute electromagnetic friction clutch；At magnet exciting coil 4
When being not powered on, balance weight 6 contacts with rotor 8 under the effect of elastic component 3, due to the effect of frictional force,
Balance weight 6 can rotate with rotor 8；And when magnet exciting coil 4 is energized, magnet exciting coil 4 can produce flat
The electromagnetic attraction of weighing apparatus block 6, disengages balance weight 6 with rotor 8, and is adsorbed onto on stator 7 end cap, make
Balance weight 6 does not rotates with rotor 8；When two magnet exciting coil 4 equal no powers, balance weight 6 is in frictional force
Under the effect of square together with rotor 8 synchronous axial system, can be used for the compensation of amount of unbalance phase place, when only adjusting
During the position of left side balance weight, it is energized to the magnet exciting coil 4 of the friction clutch on the right, the rightest balance
Block 6 just disengages with rotor 8 under electromagnetic force, and the most only left side balance weight rotates with rotor 8；Instead
It, when only adjusting the position of the right balance weight, be energized to the magnet exciting coil 4 of the friction clutch on the left side.
The mode that more than adjusts can be used for the compensation of amount of unbalance amplitude, adjusts after terminating, magnet exciting coil 4 power-off,
Balance weight 6 contacts with rotor 8 under the effect of elastic component 3 thrust, and is ensured it by motor location torque
Position fix.
When piezoelectric acceleration transducer detects the vibration signal of uneven initiation, amplify through electric charge and
After signal processing, enter main control computer.Main control computer is according to the size of once per revolution vibration component, foundation
Equilibrium strategy obtains driving the instruction of balancing head.Control instruction is encoded and infrared signal transmission sends extremely
Balancing head.Balancing head receives control instruction, and decoded, ring divides, power amplification, motor drive school
Positive mass rotates, and produces the correction mass equal in magnitude, in opposite direction with rotor unbalance value, Ji Keshi
The autobalance of existing rotor.
Second embodiment
Seeing Fig. 3-Fig. 5, this autobalance header structure based on Electromagnetic Drive, it is different from the first enforcement
It is in place of example: described service portion 6.1 is formed by some teeth radially extended annular is uniform, described turn
Son 8 end correspondence annulars are evenly equipped with some teeth being engaged with.This constitutional balance block 6 and rotor 8
In conjunction with more compact stable.
Other same first embodiments of not described part, the most no longer illustrate.
3rd embodiment
Seeing Fig. 6-Fig. 8, this autobalance header structure based on Electromagnetic Drive, it is different from the first enforcement
It is in place of example: described service portion 6.1 is formed by some salient points annular is uniform, described rotor 8 end pair
Annular should be evenly equipped with some shrinkage pools mated with salient point；Bump surface is preferably sphere, and its height of projection is little
In or equal to the radius of place spheroid, shrinkage pool corresponds to bulb-shaped recess.Service portion 6.1 can arrange one with
On, the salient point that composition many groups annular is uniform, the present embodiment uses the structure of two service portions 6.1.This structure
Balance weight 6 is more compact stable with the combination of rotor 8.
Additionally, the position of salient point and shrinkage pool can be exchanged, the most described service portion 6.1 is by some shrinkage pools annular all
Cloth forms, and described rotor 8 end correspondence annular is evenly equipped with some salient points mated with shrinkage pool.
Other same first embodiments of not described part, the most no longer illustrate.
Above-mentioned for preferred version of the present utility model, be shown and described ultimate principle of the present utility model,
Principal character and advantage of the present utility model.Those skilled in the art is not it should be recognized that this utility model is subject to
Simply illustrating described in the restriction of above-described embodiment, above-described embodiment and description is of the present utility model former
Reason, on the premise of without departing from this utility model spirit and scope, this utility model also has various change
And improvement, in the range of these changes and improvements both fall within claimed this utility model.This utility model
Claimed scope is defined by appending claims and equivalent thereof.
Claims (10)
1. an autobalance header structure based on Electromagnetic Drive, the rotary shaft (14) including mutual coaxial cooperation and fixing connection and housing, it is formed with chamber between rotary shaft (14) and housing；It is characterized in that: also include respectively with stator (7) and the rotor (8) of rotary shaft (14) coaxial cooperation, and electromagnetic clutch；Described stator (7), rotor (8) and electromagnetic clutch are respectively placed in chamber, and described rotor (8) at least relative rotation axi (14) and/or housing and/or stator (7) rotate；Described electromagnetic clutch includes elastic component (3), magnet exciting coil (4) and balance weight (6), described balance weight (6) is at least rotatable and removable, and respective rotor (8) end is arranged, its respective rotor (8) end is provided with service portion (6.1), balance weight (6) is rotated with rotor (8) by service portion (6.1), described elastic component (3) elastic pressing service portion (6.1) is on rotor (8), balance weight (6) is made to rotate with rotor (8), described magnet exciting coil (4) energising magnetic balance weight (6), disengage it from rotor (8).
Autobalance header structure based on Electromagnetic Drive the most according to claim 1, it is characterized in that: between described elastic component (3) and/or magnet exciting coil (4) and balance weight (6), have certain interval, balance weight (6) to move in described interstice coverage.
Autobalance header structure based on Electromagnetic Drive the most according to claim 2, it is characterized in that: described balance weight (6) has eccentric mass, under magnet exciting coil (4) off-position, balance weight (6) rotates with rotor (8), under magnet exciting coil (4) "on" position, balance weight (6) relative rotor (8) is static.
Autobalance header structure based on Electromagnetic Drive the most according to claim 3, it is characterized in that: described rotary shaft (14) surface is coaxially equipped with axle sleeve (13), and have certain interval each other, described axle sleeve (13) surface is coaxially fixed with the permanent magnet (9) of annular, rotor (8) arranges two, and it is fixed on permanent magnet (9) two ends symmetrically, described electromagnetic clutch arranges two sets, and symmetrical is placed in two rotors (8) end.
Autobalance header structure based on Electromagnetic Drive the most according to claim 4, it is characterized in that: described housing is made up of outer cover (15), the first end cap (1) and the second end cap (11), wherein, outer cover (15) is in cylinder, first end cap (1) and the second end cap (11) close off outer cover (15) two ends, and be individually fixed in rotary shaft (14), described stator (7) is fixed on outer cover (15) inwall.
Autobalance header structure based on Electromagnetic Drive the most according to claim 5, it is characterised in that: elastic component (3) and/or magnet exciting coil (4) correspondence of the two described electromagnetic clutchs of set are fixed on the first end cap (1) and the second end cap (11)；Bearing (2) it is provided with between described axle sleeve (13) two ends and the first end cap (1) and the second end cap (11).
Autobalance header structure based on Electromagnetic Drive the most according to claim 6, it is characterised in that: described rotor (8) is correspondingly arranged in stator (7) inner side, and has certain interval each other.
8. according to autobalance header structure based on Electromagnetic Drive described in any one of claim 1-7, it is characterised in that: described service portion (6.1) is shaggy rubbing surface.
9. according to autobalance header structure based on Electromagnetic Drive described in any one of claim 1-7, it is characterized in that: described service portion (6.1) is formed by some teeth radially extended annular is uniform, and described rotor (8) end correspondence annular is evenly equipped with some teeth being engaged with.
10. according to autobalance header structure based on Electromagnetic Drive described in any one of claim 1-7, it is characterized in that: described service portion (6.1) is formed by some salient points annular is uniform, and described rotor (8) end correspondence annular is evenly equipped with some shrinkage pools mated with salient point；
Or, described service portion (6.1) is formed by some shrinkage pools annular is uniform, and described rotor (8) end correspondence annular is evenly equipped with some salient points mated with shrinkage pool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620232873.XU CN205618603U (en) | 2016-03-23 | 2016-03-23 | First structure of automatic balance based on electromagnetic drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620232873.XU CN205618603U (en) | 2016-03-23 | 2016-03-23 | First structure of automatic balance based on electromagnetic drive |
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| Publication Number | Publication Date |
|---|---|
| CN205618603U true CN205618603U (en) | 2016-10-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620232873.XU Active CN205618603U (en) | 2016-03-23 | 2016-03-23 | First structure of automatic balance based on electromagnetic drive |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105697652A (en) * | 2016-03-23 | 2016-06-22 | 广东顺威精密塑料股份有限公司 | Automatic balance head structure based on electromagnetic drive |
-
2016
- 2016-03-23 CN CN201620232873.XU patent/CN205618603U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105697652A (en) * | 2016-03-23 | 2016-06-22 | 广东顺威精密塑料股份有限公司 | Automatic balance head structure based on electromagnetic drive |
| CN105697652B (en) * | 2016-03-23 | 2018-09-28 | 广东顺威精密塑料股份有限公司 | A kind of autobalance header structure based on electromagnetic drive |
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