CN107707096B - A kind of two balancing frame bidirectional modulation on-line dynamic balancing heads of stepper motor driving - Google Patents
A kind of two balancing frame bidirectional modulation on-line dynamic balancing heads of stepper motor driving Download PDFInfo
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- CN107707096B CN107707096B CN201710812132.8A CN201710812132A CN107707096B CN 107707096 B CN107707096 B CN 107707096B CN 201710812132 A CN201710812132 A CN 201710812132A CN 107707096 B CN107707096 B CN 107707096B
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- balancing frame
- balancing
- frame
- control
- disc portion
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K37/00—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors
- H02K37/24—Structural association with auxiliary mechanical devices
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/04—Balancing means
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Testing Of Balance (AREA)
Abstract
A kind of two balancing frame bidirectional modulation on-line dynamic balancing heads of stepper motor driving, including balance disc portion, control disc portion；Wherein, balance disc portion passes through bearing respectively with control disc portion and interference fit is connected on dynamic balancing head axle sleeve, axle sleeve is connected on main shaft by tensioner, so balancing frame may be implemented to be freely rotated relative to main shaft by stepper motor driving, control panel is then to rotate synchronously in real time with main shaft；The present invention is using double counterweight radii fixus polar coordinate modes, it is made of balancing frame A, B for providing double counterweights, although the balance quality of each counterweight offer is fixed in double counterweights, by changing the relative angle of double counterweights, to change the balance quality of final overall output；Control system of the present invention is simple, and control precision is high；Using gear drive, counterweight precision is high；Balancing frame can accomplish bidirectional modulation, adjust high-efficient, the present invention generally mechanical structure, to axis system without electromagnetic interference.
Description
Technical field
The invention belongs to rotor-support-foundation system dynamic balancing technique field more particularly to rotor on-line dynamic balancing header structures.
Background technique
Rotor unbalance is the main reason for causing mechanical equipment vibration.Dynamic load caused by unbalanced rotor is upper in bearing
Lotus not only causes the vibration of entire mechanical equipment, generates noise, accelerates bearing wear, and rotor part high-cycle fatigue is caused to destroy
Certain component forced vibrations with supporting part damage, and reduce the service life of mechanical equipment, more seriously if under high speed, rotor
The vibratory output of structure is more than a certain range, and swing mechanism even whole system will be destroyed, and causes substantial equipment accident.Cause
This, needs to eliminate the unbalance vibration of rotor-support-foundation system by effective method.Currently, most common method be to rotor-support-foundation system into
Action balance.
Existing dynamic balance method is inherently to shut down the i.e. offline dynamic balancing of operation in engineering, and offline dynamic balancing refers to elder generation
Rotor is unloaded from machine, out-of-balance force is measured using special balancing machine and implements to balance, is then installed to machine again
It works on device.However this method equilibration period is long, low efficiency and for the rotor of the large rotating machineries such as steam turbine
For system, shutdown can once bring huge economic loss.Therefore, be badly in need of in engineering one kind can overcome it is above insufficient dynamic
Balancing technique.
And on-line dynamic balancing technology has apparent advantage relative to traditional offline dynamic balancing technique because of it, and can
To solve problem above, attract attention more and more in recent years.On-line dynamic balancing, which refers to, eliminates rotor when not shutting down
Amount of unbalance, the method for referring mainly to install dynamic balancing head additional at present, dynamic balancing head can be on a certain vertical reference plane of shaft
The eccentric force of its size and phase can be adjusted by control system to offset the imbalance generated in working rotor by being arranged one
Power, it carries out continuously detection in real time under rotor operation state, monitoring rotor-support-foundation system obtains amount of unbalance, when the injustice of detection
When measuring beyond allowed band, the adjustment signal for being directed to current amount of unbalance is issued to dynamic poise device by control system, will be turned
Subsystem continues to monitor in real time because vibration caused by uneven is reduced to allowed band after equilibrated.This device energy
Really meet Practical Project and production needs, has high economic benefit and wide application prospect.But it is existing dynamic flat
Weighing, there are also deficiencies, such as most dynamic balancing head, and the tune of balance quality is realized using electromagnetic force and frictional force collective effect for head
Section may make control precision, adjustment speed be affected in this way；And the complex structural designs of part dynamic balancing head make whole
A device excessively heaviness etc..The present invention is designed for some of the above deficiency.
Summary of the invention
It is an object of the invention to effectively overcome existing on-line dynamic balancing apparatus structure complicated, control precision is low, adjusts
The disadvantages of speed is slow.It proposes a kind of by stepper motor driving, gear drive, the realization stepper motor driving two-way tune of two balancing frames
The on-line dynamic balancing head of section balance quality size and phase.
The specific technical solution of the present invention is as follows:
A kind of two balancing frame bidirectional modulation on-line dynamic balancing heads of stepper motor driving, including balance disc portion, control pan portion
Point；Wherein, balance disc portion passes through bearing with control disc portion respectively and interference fit is connected on dynamic balancing head axle sleeve, axle sleeve
Be connected on main shaft by tensioner, thus balancing frame may be implemented to be freely rotated relative to main shaft by stepper motor driving,
And control panel is then to rotate synchronously in real time with main shaft；
The balance disc portion includes balancing frame A, balancing frame B, for providing double counterweights；Balancing frame A by balancing frame A1,
Balancing frame A2 is connected and fixed by the half-thread of connecting end surface and is integral；Balancing frame B passes through company by balancing frame B1, balancing frame B2
The half-thread of contact surface, which is connected and fixed, to be integral；Balancing frame A2 is fixed on balancing frame by the bearing support shaft shoulder and circlip limit
On B2, balancing frame B2 is fixed on dynamic balancing head axle sleeve by the bearing support shaft shoulder and circlip limit；In balancing frame A1 and balance
Aperture is set away from rotation center fixed range on disk B1, to provide disequilibrium regulating amount, such as Fig. 5,6；Balancing frame A1 is equipped with interior
Tooth and end-tooth, balancing frame B1 are equipped with external tooth and end-tooth, are respectively used for transmitting torque and locking balancing frame.
The control disc portion includes control disc main body, two stepper motors, two adjustment gears, at least one frame
Formula sliding electromagnet, control panel end cap, at least one set of clutch slider and limit plate, for control balancing frame phase change and
It is fixed locked；Two of them stepper motor is connected in the control symmetrical both ends of disc main body, two adjusting tooths by itself ring flange
Wheel is connected on step motor shaft by holding screw；Two adjustment gears pass through the internal tooth and balancing frame with balancing frame A1
The outer tooth engagement of B1 drives balancing frame A and balancing frame B rotation respectively, realizes uneven counterweight process, accomplishes that bidirectional modulation balances
Disk phase；Control panel end cap is bolted on control disc main body, and frame-type sliding electromagnet is fixedly connected by screw
On control panel end cap, clutch slider is connected on the projecting shaft of electromagnet by limit plate, straight pin and screw；Clutch slider
By the end face tooth engagement of tooth-like structure and balancing frame A1 and balancing frame B1 or loosens, play locking or loosen the work of balancing frame
With.
Further, above-mentioned clutch slider is ring sector, and two rows end-tooth is arranged close to control panel body side,
The end face tooth engagement of match through-hole and the balancing frame A1 and balancing frame B1 that open up on control disc main body are loosened.
Above-mentioned dynamic balancing head is required to that a size, the bias of phase-adjustable are arranged on a vertical plane of shaft
Away from.To realize this function, the present invention is using double counterweight radii fixus polar coordinate modes, and schematic diagram is as shown in Figure 1, two matter
Amount is the fixed weight that m distance is r, and the phase by changing two counterweights can provide minimum 0 (phase within the scope of 360 °
Be 180 ° to angle), the balance correction amount of maximum 2mr (angle is 0 °).So being made of balancing frame A, B for providing double match
Weight, although the balance quality that each counterweight provides in double counterweights be it is fixed, by changing the relative angle of double counterweights, from
And change the balance quality of final overall output, and the maximum when angle is 0 °, minimum at 180 °
Compared with existing dynamic balancing head, the invention has the following advantages that
1. the present invention is driven using stepper motor, control system is simple, and control precision is high；Using gear drive, counterweight essence
Degree is high；Balancing frame can accomplish bidirectional modulation, adjust high-efficient.
2. apparatus structure is simple, system reliability and controllability are high.
It is flexible in application 3. small in size, a balancing head can be used for the single-side dynamic balance of axis system, two balancing heads can be real
Existing two plane balancing.
4. the present invention generally mechanical structure, to axis system without electromagnetic interference.
Detailed description of the invention
Fig. 1 is the schematic diagram of double counterweight radii fixus polar coordinate modes of the present invention；
Fig. 2 is main view of the invention；
Fig. 3 is top view of the invention；
Fig. 4 is left view of the invention；
Fig. 5 is the backward axonometric drawing of balancing frame A of the invention；
Fig. 6 is the axonometric drawing of balancing frame B of the invention；
Fig. 7 is the axonometric drawing of balancing frame A of the invention；
Fig. 8 is the explosive view of control section of the present invention；
Fig. 9 is the axonometric drawing of control section of the present invention；
In figure, 1 dynamic balancing head axle sleeve, 2 control disc main bodies, 3 balancing frame B1,4 stepper motors, 5 adjustment gears, 6 balancing frames
B2,7 balancing frame A1,8 balancing frame A2,9 frame-type sliding electromagnets, 10 control panel end caps, 11 clutch sliders, 12 limit plates.
Specific embodiment
A kind of motor-driven dynamic balancing head structure.
First dynamic balancing head be required can be arranged on a vertical plane of shaft a size, phase-adjustable it is inclined
The heart away from.To realize this function, herein using double counterweight radii fixus polar coordinate modes, schematic diagram is as shown in Figure 1, two matter
Amount is the fixed weight that m distance is r, and the phase by changing two counterweights can provide minimum 0 (phase within the scope of 360 °
Be 180 ° to angle), the balance quality of maximum 2mr (angle is 0 °).
The present invention is divided into two parts: a part is balance disc portion, is made of balancing frame A, B for providing double counterweights, though
The balance quality that so each counterweight provides in double counterweights is fixed, but the relative angle by changing double counterweights, to change
Become the balance quality of final overall output, the maximum when angle is 0 °, minimum at 180 °；Another part is control disc portion by step
It is formed into motor 4, clutch slider 11 etc., for controlling the phase change of balancing frame and fixing locked.Balancing frame and control panel
It is connected on dynamic balancing head axle sleeve 1 by bearing, interference fit respectively, axle sleeve is connected on main shaft by tensioner, so flat
Weighing apparatus disk may be implemented to be freely rotated relative to main shaft and control panel is rotated synchronously with main shaft.
Due to need to realize double counterweights so balancing frame has part ownership two balancing frames, it is also contemplated that processing problems are so handle
Each balancing frame is divided into two parts, it can be seen that balancing frame A is connected by balancing frame A17, balancing frame A28 by half-thread in Fig. 2
It connects；Balancing frame B is then to be formed by connecting by balancing frame B13, balancing frame B26 by half-thread.Balancing frame by disk away from
Counterweight is obtained from the several equidistant apertures of rotation center fixed range processing, such as Fig. 5,6.Balancing frame B by the bearing support shaft shoulder and
Circlip limit is fixed on axle sleeve, and balancing frame A crosses the bearing support shaft shoulder and circlip limit is fixed on balancing frame B, and assembly is closed
System such as Fig. 2.
Control panel is then by control disc main body 2, two stepper motor 4, two adjustment gear 5, frame-type sliding electromagnet
9, control panel end cap 10, clutch slider 11, limit plate 12 form, and wherein stepper motor 4 is connected in control by itself ring flange
On disc main body 2, adjustment gear 5 is connected on stepper motor output shaft by holding screw；Frame-type sliding electromagnet 9 passes through spiral shell
Nail is connected on control panel end cap 10, and clutch slider 11 then makes it be connected in electromagnet by limit plate 12, straight pin and screw
On, specific assembly relation is as shown in Figure 2,3.Explosive view such as Fig. 8.
When needing adjustment disk phase, two clutch sliders 11 are retracted first with frame-type sliding electromagnet 9
So that clutch slider 11 is separated with balancing frame A, B upper (Fig. 6,7) engaging tooth being mutually twisted, it is driven through by stepper motor 4
The gear pair formed between adjustment gear 5 and balancing frame drives balancing frame relative to main axis certain angle, so that two counterweights
This time balance institute counterweight to be simulated is obtained by Vector modulation.When needing to lock two balance phases when the adjustment is completed, this
When need to use clutch slider 11, frame-type sliding electromagnet 9 releases two clutch sliders 11 so that clutch slider 11 is nibbled
Close tooth and balancing frame A, B upper side engaging tooth (Fig. 6,7) be mutually twisted, finally make balancing frame also with main shaft synchronous rotary,
Realize an on-line dynamic balancing.When amount of unbalance is excessive next time for system, then second is carried out with same working method and is put down
Weighing apparatus.
The above is an example of the present invention, some transformation can be carried out to structure, to be applied to distinct device.Only
The Design of Mechanical Structure thinking of its balancing head is wanted to be regarded as range included by the present invention with of the present invention consistent.
Claims (2)
1. a kind of stepper motor drives two balancing frame bidirectional modulation on-line dynamic balancing heads, which is characterized in that including balance disc portion,
Control disc portion；Wherein, balance disc portion is connected on dynamic balancing head axle sleeve by bearing, and control disc portion passes through interference fit
It is connected on dynamic balancing head axle sleeve；Axle sleeve is connected on main shaft by tensioner；
The balance disc portion includes balancing frame A, balancing frame B；Balancing frame A passes through connecting pin by balancing frame A1, balancing frame A2
The half-thread in face, which is connected and fixed, to be integral；Balancing frame B is connected by balancing frame B1, balancing frame B2 by the half-thread of connecting end surface
Fixation is integral；Balancing frame A2 is fixed on balancing frame B2 by the bearing support shaft shoulder and circlip limit, and balancing frame B2 passes through
The bearing support shaft shoulder and circlip limit are fixed on dynamic balancing head axle sleeve；It is solid away from rotation center on balancing frame A1 and balancing frame B1
Aperture is arranged in set a distance；Balancing frame A1 is equipped with internal tooth and end-tooth, and balancing frame B1 is equipped with external tooth and end-tooth；
The control disc portion includes controlling disc main body, two stepper motors, two adjustment gears, at least one frame-type to push away
Draw electromagnet, control panel end cap, at least one set of clutch slider and limit plate；Two of them stepper motor is solid by itself ring flange
The control symmetrical both ends of disc main body are connected in, two adjustment gears are connected on step motor shaft by holding screw；Two
Adjustment gear drives balancing frame A and balancing frame B to turn respectively by the outer tooth engagement of internal tooth and balancing frame B1 with balancing frame A1
It is dynamic；Control panel end cap is bolted on control disc main body, and frame-type sliding electromagnet is fixedly connected on control by screw
On disk end cap processed, clutch slider is connected on the projecting shaft of electromagnet by limit plate, straight pin and screw；Clutch slider passes through
The end face tooth engagement of tooth-like structure and balancing frame A1 and balancing frame B1 are loosened.
2. a kind of stepper motor according to claim 1 drives two balancing frame bidirectional modulation on-line dynamic balancing heads, feature
It is, clutch slider is ring sector, and two rows end-tooth is arranged close to control panel body side, is passed through on control disc main body
The end face tooth engagement of match through-hole and the balancing frame A1 and balancing frame B1 that open up are loosened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710812132.8A CN107707096B (en) | 2017-09-11 | 2017-09-11 | A kind of two balancing frame bidirectional modulation on-line dynamic balancing heads of stepper motor driving |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710812132.8A CN107707096B (en) | 2017-09-11 | 2017-09-11 | A kind of two balancing frame bidirectional modulation on-line dynamic balancing heads of stepper motor driving |
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| Publication Number | Publication Date |
|---|---|
| CN107707096A CN107707096A (en) | 2018-02-16 |
| CN107707096B true CN107707096B (en) | 2019-07-16 |
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| CN201710812132.8A Active CN107707096B (en) | 2017-09-11 | 2017-09-11 | A kind of two balancing frame bidirectional modulation on-line dynamic balancing heads of stepper motor driving |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110048581B (en) * | 2019-05-25 | 2019-11-22 | 京马电机有限公司 | A kind of stepper motor preventing eccentric operating |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203365063U (en) * | 2013-01-29 | 2013-12-25 | 深圳大学 | Online dynamic balance compensation device for high-speed motorized spindles |
| CN105865715A (en) * | 2015-01-23 | 2016-08-17 | 天津职业技术师范大学 | Active high-speed spindle on-line dynamic balancing head and control system thereof |
| CN106168526A (en) * | 2016-08-15 | 2016-11-30 | 上海交通大学 | A kind of rotor-support-foundation system on-line dynamic balancing system and method |
-
2017
- 2017-09-11 CN CN201710812132.8A patent/CN107707096B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203365063U (en) * | 2013-01-29 | 2013-12-25 | 深圳大学 | Online dynamic balance compensation device for high-speed motorized spindles |
| CN105865715A (en) * | 2015-01-23 | 2016-08-17 | 天津职业技术师范大学 | Active high-speed spindle on-line dynamic balancing head and control system thereof |
| CN106168526A (en) * | 2016-08-15 | 2016-11-30 | 上海交通大学 | A kind of rotor-support-foundation system on-line dynamic balancing system and method |
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| CN107707096A (en) | 2018-02-16 |
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