CN201813250U - Secondary-pendulum chaotic vibration motor - Google Patents
Secondary-pendulum chaotic vibration motor Download PDFInfo
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- CN201813250U CN201813250U CN2010205569270U CN201020556927U CN201813250U CN 201813250 U CN201813250 U CN 201813250U CN 2010205569270 U CN2010205569270 U CN 2010205569270U CN 201020556927 U CN201020556927 U CN 201020556927U CN 201813250 U CN201813250 U CN 201813250U
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- pendulum
- movable pendulum
- bearing
- vibration motor
- secondary movable
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Abstract
The utility model provides a secondary-pendulum chaotic vibration motor which relates to a vibration motor with special inertial excitation capacity, in particular to a chaotic vibration motor with a secondary pendulum structure, belonging to the technical field of vibration utilization engineering. The vibration motor comprises a motor part and secondary pendulum components, wherein the motor part comprises a stator, a shell, bearing seats, a bearing 1, a rotor shaft and a gland; the secondary pendulum components are symmetrically distributed at the left and right ends of the rotor shaft, and comprise a stationary pendulum, a primary pendulum, a secondary pendulum, a shaft and bearings; the secondary pendulum components are installed at the end part of the rotor shaft, and the stationary pendulum is fixedly connected with the rotor shaft by a flat key; a shaft sleeve is arranged between the primary pendulum and the stationary pendulum, the primary pendulum is hinged with the rotor shaft by a bearing 2, and the lower part of the primary pendulum is provided with a secondary pendulum shaft; and the secondary pendulum is hinged with the secondary pendulum shaft by a bearing 3. The mass ratio of the stationary pendulum to the primary pendulum to the secondary pendulum is commonly 5:3.5:1.5. The bearing seats at the two ends of the shell are respectively provided with a pendulum component cover.
Description
Technical field
The utility model relates to a kind of vibrating motor with special inertial excitation ability, and particularly a kind of chaotic vibration motor with secondary movable pendulum structure belongs to vibration and utilizes field of engineering technology.
Background technology
Vibrating motor is to utilize vibration principle to drive the excitational equipment of vibrating machine work, and common vibrating motor and common motor all have stator and rotor structure, but it all has very big difference in principle, function and other configuration aspects.
Common vibrating motor is the two ends at armature spindle, and the eccentric centering block (abbreviation centering block) that two groups of (2 every group) scalable relative angles are housed is respectively formed exciting source, produces exciting force when revolution, drives the vibrating machine system by motor base and produces vibration; Because the centrifugal action of centering block, armature spindle can produce the exciting force that along the circumferential direction changes; Can adjust axle head centering block relative angle according to the load needs before the start, to regulate the exciting force of vibrating motor.Common vibrating motor is that collection power source and exciting come from one, have exciting force big and shut down that the back is adjustable, volume is little, in light weight, simple in structure, advantage such as working service is convenient, utilize in the engineering in a lot of vibrating machines or vibration in recent years to be applied.
The centering block of common vibrating motor is consolidated on the armature spindle, maximum exciting force is once setting, in running, be definite value, but it is in startup and stopping process, when vibration frequency approaches the natural frequency of system, amplitude can increase sharply and produce resonance, not only makes system's loss of stability, and causes the damage of this body structure of vibrating machine involving vibrations motor easily; In addition under many circumstances, vibrating machine needs system to have some irregular performance of wide power spectrum curve and movement locus, finish some special job contents, problems such as the screening percentage as vibrating scalper is low excessively, generation card sieve, problems such as the not refinement of vibrating mill micro mist, easy reunion, common vibrating motor almost is helpless for the solution of these problems.
Summary of the invention
The utility model purpose is to provide a kind of secondary movable pendulum chaotic vibration motor at above-mentioned weak point, solve the problems of the technologies described above effectively, make system the startup stage start with very little exciting force, reduce the staring torque of vibrating motor greatly, improve rapidity and reliability that vibrating machine starts; The shutdown stage is with the resonance region of very little exciting force by its system, thereby prevents the generation of resonating, and reaches the purpose that energy consumption is low, the life-span is long.
The utility model is that the eccentric centering block with the vibrating motor axle head is divided into fixed pendulum and movable pendulum, and the fixed pendulum shape is fan-shaped often, and the movable pendulum shape can be and fan-shapedly also can be made into other shapes according to needs; Movable pendulum is divided into one-level movable pendulum, secondary movable pendulum again, and fixed pendulum is fixed on the motor shaft, and one-level movable pendulum kink is on the motor shaft or be contained on the fixed pendulum axle, and the secondary movable pendulum then need be contained on the one-level movable pendulum axle.Two movable pendulums are freely with respect to the position of fixed pendulum not only in running, and the relative position between two movable pendulums also is freely, the fixed pendulum, one-level movable pendulum, the secondary movable pendulum that are the present invention's one end have 3 degrees of freedom altogether, and the present invention that hence one can see that is at least 3DOF mechanism.
The kinetic characteristic and the probabilistic factor of motion that influence two movable pendulums are a lot, make mechanism have the input of determining and the chaotic motion of uncertain output, the characteristics of chaotic motion are exactly some the irregular performance with wide power spectrum curve and movement locus, and the present invention utilizes these characteristics that chaotic motion is applied to some special vibrating machine systems.
Because the effect of movable pendulum; the instantaneous synthetic total inertia force of each centering block of vibrating motor can be changed in running; particularly in startup, stopping process; very little or approach zero in view of making its total inertia force due to the structure of the present invention; thereby make the vibrating motor can be, and then avoid the resonance of system with less or approach zero exciting force by resonance region.
The utility model secondary movable pendulum chaotic vibration motor takes following technical scheme to realize:
The utility model mainly comprises motor portion and secondary movable pendulum assembly.Motor portion comprises stator, casing, bearing pedestal, bearing one, armature spindle and gland; Secondary movable pendulum assembly is symmetrical distribution at two ends, the armature spindle left and right sides, and secondary movable pendulum assembly comprises fixed pendulum, one-level movable pendulum, secondary movable pendulum, axle and bearing.
Secondary movable pendulum assembly is installed on the armature spindle axial end portion, and fixed pendulum is consolidated in armature spindle by flat key; Between one-level movable pendulum and the fixed pendulum axle sleeve is housed, the one-level movable pendulum is hinged by bearing two and armature spindle, and the secondary balance staff is equipped with in one-level movable pendulum bottom; The secondary movable pendulum is hinged by bearing three and secondary balance staff.
The mass ratio of described fixed pendulum, one-level movable pendulum, secondary movable pendulum was generally 5: 3.5: 1.5, also can be the mass ratio of other ratios, answered that viewing system needs, structure allows, combined factors such as the running of safeguards system and efficient consider.
On the casing two end axles bearing of the present utility model movable pendulum assembly cover is housed respectively, it all covers secondary centering block assembly respectively, the safety during with the assurance running.
Because the structure of left and right sides secondary movable pendulum assembly is for being symmetrically distributed, so getting final product only to the statement of left centering block assembly; Still because symmetry, during motion about the movable pendulum assembly realize easily that synchronously idol has nonsynchronous in short-term situation, then the axial moment of couple of Chan Shenging is fully in system's tolerance range, so do not add explanation in addition.
The structural principle of secondary movable pendulum assembly is described as follows:
Secondary movable pendulum assembly is installed on the armature spindle axle head, and fixed pendulum is consolidated in armature spindle by flat key; Between one-level movable pendulum and the fixed pendulum axle sleeve is housed, the one-level movable pendulum is hinged by bearing and armature spindle, and the secondary balance staff is equipped with in one-level movable pendulum bottom; The secondary movable pendulum is hinged by bearing and secondary balance staff.
When the utility model starts running, because the degree of freedom of I and II movable pendulum is unrestricted, and the effect of fixed pendulum and positioner, can make staring torque reduce, improve the rapidity that starts; During normal operation, its relative position and motion conditions complexity; The fixed pendulum rotating speed slows down during shutdown, the one-level movable pendulum is because inertia can move to the position that is limited by positioner along the ω direction, this moment one-level movable pendulum and fixed pendulum eccentric basic neutralisation, no matter the secondary movable pendulum is in any angle, all make vibrating motor with the resonance region of very little exciting force by its system, thereby prevent the generation of resonating; Be provided with many location holes on fixed pendulum, alignment pin can be inserted in the different location holes, and the angle when regulating movable pendulum and fixed pendulum start and stop is to reach the purpose of regulating the start and stop exciting force; As the present invention during by-ω running, can adopt the dowel hole on fixed pendulum right side, load onto alignment pin and can reach above-mentioned identical effect.
On casing two end axles bearing the centering block cover is housed respectively, secondary movable pendulum assembly is covered in the centering block cover, the radial dimension of centering block cover should be decided according to the range of movement of all secondary movable pendulum assemblies.
As the above analysis, the degree of freedom of the present invention is at least 3, and the degree of freedom is many more, and the motion of system is complicated more.When armature spindle drives the fixed pendulum rotation, because the variation of system load, mains fluctuations, the influence of factors such as system speed fluctuation, the one-level movable pendulum, the secondary movable pendulum can relatively rotate with fixed pendulum under situation complicated and changeable, each centering block centroid position and motion are changed and produce chaotic motion, system shakes frequently, amplitude, exciting force, bigger variation will take place in performance parameters such as oscillation intensity, to realize some irregular performance of wide power spectrum or movement locus, as realizing transient state or the large amplitude on certain short time interval, big exciting force, special inertia properties such as big oscillation intensity.
In addition, parameter maximum, action times such as amplitude, exciting force, oscillation intensity are still relevant with the factors such as rule that eccentric throw, centering block quality, transient speed, speed and the acceleration of vibration generator of centering block barycenter at different levels fluctuate, consequent vibration has several characteristics of multifrequency, be that synchronization has a plurality of frequencies and amplitude to act on system, be equivalent to the resultant vibration of a plurality of frequencies and amplitude.
The realization of the above-mentioned performance of the utility model secondary movable pendulum chaotic vibration motor, some the work resistance barrier for overcoming vibrating machine solves some key technology of vibrating machine or the bottleneck problem of restriction development, as low excessively, the card sieve of screening percentage of vibrating scalper; The not refinement of vibrating mill micro mist, easily reunion; The mixture homogeneity that some various materials is mixed in the vibration batch mixer is not high, mixing efficiency is low excessively; The problems such as improper motion of material bonding, arch camber, delay have tangible engineering effort and significance of application in the bulkhead vibration work of various feed bins, hopper, chute.
The utility model can also make system the startup stage start with very little exciting force, reduce the staring torque of vibrating motor greatly, improve rapidity and reliability that vibrating machine starts; The shutdown stage is with the resonance region of very little exciting force by its system, thereby prevents the generation of resonating, and reaches the purpose that energy consumption is low, the life-span is long, so particularly suitable for the vibrating machine of frequent starting.
Description of drawings
The utility model is described in further detail below with reference to accompanying drawing:
Fig. 1 is a structural front view of the present utility model.
Fig. 2 is the structure side view that the utility model removes left centering block cover.
Mark among the figure: 1, stator, 2 casings, 3, bearing one, 4 bearing pedestal, 5, flat key, 6, axle sleeve, 7, the one-level movable pendulum, 8, bearing two, 9, armature spindle, 10, bearing three, 11, secondary movable pendulum, 12, secondary movable pendulum axle, 13, centering block cover, 14, fixed pendulum, 15, gland, 16, dowel hole one, 17 dowel holes two, 18, dowel hole three, 19, dowel hole four, 20, alignment pin one, 21, alignment pin two, 22, alignment pin three, 23, alignment pin four.
Embodiment
With reference to accompanying drawing 1, the utility model mainly comprises motor portion and secondary movable pendulum assembly.Motor portion comprises stator 1, casing 2, bearing 1, bearing pedestal 4, armature spindle 9, gland 15 etc., and is similar with common motor, repeats no more.
Described secondary movable pendulum assembly is symmetrical distribution at armature spindle 9 left and right two ends, and secondary movable pendulum assembly comprises flat key 5, axle sleeve 6, one-level movable pendulum 7, bearing 28, bearing 3 10, secondary movable pendulum 11, secondary movable pendulum axle 12, centering block cover 13, fixed pendulum 14, dowel hole 1, dowel hole 2 17, dowel hole 3 18, dowel hole 4 19, alignment pin 1, alignment pin 2 21, alignment pin 3 22 and alignment pin 4 23.
Be consolidated with left and right movable pendulum assembly cover 13 on the casing two end axles bearing 4 of described vibrating motor, it all covers left and right secondary movable pendulum assembly respectively, the safety during with the assurance running.
As shown in Figure 1, because the structure of left and right sides secondary movable pendulum assembly is for being symmetrically distributed, so getting final product only in the embodiment to the statement of left centering block assembly; Still because symmetry, during motion about the movable pendulum assembly realize easily that synchronously idol has nonsynchronous in short-term situation, then the axial moment of couple of Chan Shenging is fully in system's tolerance range.
The structural principle of secondary movable pendulum assembly is that example is illustrated with the second from left level movable pendulum assembly:
Among Fig. 1, secondary movable pendulum assembly is installed on armature spindle 9 axial end portion, and fixed pendulum 14 is consolidated in armature spindle 9 by flat key 5; Between one-level movable pendulum 7 and the fixed pendulum 14 axle sleeve 6 is housed, the one-level movable pendulum is hinged by bearing 28 and armature spindle 9, and secondary balance staff 12 is equipped with in one-level movable pendulum bottom; Secondary movable pendulum 11 is hinged by bearing 3 10 and secondary balance staff 12.
As shown in Figure 2, the utility model is pressed the diagram angular velocity omega and is started when turning round, because the degree of freedom of I and II movable pendulum 7,11 is unrestricted, and the effect of fixed pendulum 14 and alignment pin 22 or 23, can make staring torque reduce, improve the rapidity of startup; Rotating speed slows down during shutdown, one-level movable pendulum 7 is moved to along the ω direction by alignment pin 20 or 21 positions that limited (position shown in the double dot dash line among the figure) owing to inertia, this moment one-level movable pendulum 7 with the eccentric basic neutralisation of fixed pendulum 14, this moment, no matter secondary movable pendulum 11 was in any position, all make vibrating motor with the resonance region of very little exciting force by its system, thereby prevent the generation of resonating, on fixed pendulum 14, be provided with simultaneously many location holes, alignment pin can be inserted in the different location holes, regulate the angle of movable pendulum and fixed pendulum, to reach the purpose of regulating the vibrating motor exciting force; As the present invention during by the running of diagram angular speed-ω, can adopt the dowel hole 16-19 on fixed pendulum 14 right sides, load onto alignment pin and can reach above-mentioned identical effect.
Movable pendulum assembly cover 13 is housed respectively on casing two end axles bearing, secondary movable pendulum assembly is covered in the movable pendulum assembly cover 13, the radial dimension of movable pendulum assembly cover 13 should be decided according to the range of movement of all secondary movable pendulum assemblies.
Fig. 1, the 2 mechanism structure schematic diagrames of expressing, can get its mechanism freedom is 3, and the degree of freedom is many more, and the motion of system is complicated more; When armature spindle 9 drives fixed pendulum 14 rotations, because the variation of system load, mains fluctuations, the influence of factors such as system speed fluctuation, one-level movable pendulum 7, secondary movable pendulum 11 can relatively rotate with fixed pendulum 14 under situation complicated and changeable, each centering block centroid position and motion are changed and produce chaotic motion, total inertia force that can cause system, exciting force, bigger variation takes place in amplitude and oscillation intensity, can realize power spectrum or some irregular performance of movement locus of broad, as realize transient state or the large amplitude on certain short time interval, big exciting force, special inertia properties such as big oscillation intensity, the realization of these special inertia properties main feature of the present invention just can be to its size by control device, control effectively action time.
The utility model can be used for the bulkhead vibration of various feed bins, hopper, chute in the vibrating machine, to prevent material bonding, arch camber, delay, impels the material proper motion; Can be used for linear vibrating screen, probability screen, revolve the sieve that shakes, various vibrating machines such as oscillating feeder, vibratory feed unit, jigging conveyer, vibrator, vibrating head grinding machine, planetary ball mill make exciting source and drive source, make system produce the power spectrum of broad, realize the demand of special inertia properties such as system motion some irregular performance of track such as large amplitude, big exciting force, big oscillation intensity, more effectively finish the various special operation contents and the job requirements of system.
The utility model also can be used for general vibrating machine, make system the startup stage start with very little exciting force, reduce the staring torque of vibrating motor greatly, improve rapidity and reliability that vibrating machine starts; The shutdown stage is with the resonance region of very little exciting force by its system, thereby prevents the generation of resonating, and reaches the purpose that energy consumption is low, the life-span is long, and the utility model is particularly useful for the vibrating machine of frequent starting.
Claims (3)
1. a secondary movable pendulum chaotic vibration motor is characterized in that comprising motor portion and secondary movable pendulum assembly; Motor portion comprises stator, casing, bearing pedestal, bearing one, armature spindle and gland; Secondary movable pendulum assembly is symmetrical distribution at the left and right two ends of armature spindle, and secondary movable pendulum assembly comprises fixed pendulum, one-level movable pendulum, secondary movable pendulum, axle and bearing two; Secondary movable pendulum assembly is installed on the armature spindle axial end portion, and fixed pendulum is consolidated in armature spindle by flat key; Between one-level movable pendulum and the fixed pendulum axle sleeve is housed, the one-level movable pendulum is hinged by bearing two and armature spindle, and the secondary balance staff is equipped with in one-level movable pendulum bottom; The secondary movable pendulum is hinged by bearing three and secondary balance staff.
2. secondary movable pendulum chaotic vibration motor according to claim 1 is characterized in that the mass ratio of described fixed pendulum, one-level movable pendulum, secondary movable pendulum was generally 5: 3.5: 1.5.
3. secondary movable pendulum chaotic vibration motor according to claim 1 is characterized in that on the described casing two end axles bearing movable pendulum assembly cover being housed respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205569270U CN201813250U (en) | 2010-10-08 | 2010-10-08 | Secondary-pendulum chaotic vibration motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205569270U CN201813250U (en) | 2010-10-08 | 2010-10-08 | Secondary-pendulum chaotic vibration motor |
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| CN201813250U true CN201813250U (en) | 2011-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010205569270U Expired - Fee Related CN201813250U (en) | 2010-10-08 | 2010-10-08 | Secondary-pendulum chaotic vibration motor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101982926A (en) * | 2010-10-08 | 2011-03-02 | 南京工程学院 | Secondary pendulum chaotic vibration motor |
| CN103595177A (en) * | 2013-10-24 | 2014-02-19 | 西安理工大学 | Single-direction non-periodic vibration device and non-periodic vibration control method |
-
2010
- 2010-10-08 CN CN2010205569270U patent/CN201813250U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101982926A (en) * | 2010-10-08 | 2011-03-02 | 南京工程学院 | Secondary pendulum chaotic vibration motor |
| CN101982926B (en) * | 2010-10-08 | 2012-12-19 | 南京工程学院 | Secondary pendulum chaotic vibration motor |
| CN103595177A (en) * | 2013-10-24 | 2014-02-19 | 西安理工大学 | Single-direction non-periodic vibration device and non-periodic vibration control method |
| CN103595177B (en) * | 2013-10-24 | 2015-08-12 | 西安理工大学 | Unidirectional aperiodic vibration device and aperiodic vibration control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110427 Termination date: 20111008 |