CN103394457A - Amplitude self-adaptive rotating wheel - Google Patents
Amplitude self-adaptive rotating wheel Download PDFInfo
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- CN103394457A CN103394457A CN2013103717172A CN201310371717A CN103394457A CN 103394457 A CN103394457 A CN 103394457A CN 2013103717172 A CN2013103717172 A CN 2013103717172A CN 201310371717 A CN201310371717 A CN 201310371717A CN 103394457 A CN103394457 A CN 103394457A
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- eccentric block
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- eccentric
- circular disk
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- 230000006978 adaptation Effects 0.000 claims description 6
- 230000005284 excitation Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 7
- 238000003032 molecular docking Methods 0.000 description 4
- 230000001351 cycling effect Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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Abstract
The invention relates to the field of vibration excitation equipment, in particular to an amplitude self-adaptive rotating wheel. The amplitude self-adaptive rotating wheel comprises a rotating disk, an eccentric block, a spring and a pin shaft and is characterized in that the shaft of the eccentric block is fixed on the rotating disk; the center of the shaft of the eccentric block is not coincident with the center of the rotating disk; the hole of the eccentric block is in loose fit with the shaft of the eccentric block; and a pin shaft hole is formed in the rotating disk for fixing the pin shaft. The amplitude self-adaptive rotating wheel has a large adjustable range and a large application range; and the self-adaptive capability to low frequency, low amplitude, high frequency and high amplitude can be achieved.
Description
Technical field
Patent of the present invention relates to the excitational equipment field, more specifically to a kind of amplitude self adaptation swiveling wheel.
Background technology
For common inertia vibrating equipment, its amplitude:
Wherein: m represents the exciting quality, and r represents eccentric throw, the mass of vibration of M indication equipment,
As can be known by formula, changing amplitude can be by changing exciting quality m or changing eccentric throw r;
At present, vibrator commonly used, amplitude is constant in the course of the work.Changing the amplitude size is quality or the change eccentric block corner dimension by the increase and decrease eccentric block.During known eccentric block amplitude modulation, the angle between increase and decrease quality on original eccentric block or change eccentric block, need to shut down the protective cover of opening eccentric block, can't adjust amplitude at the equipment normal operation period.
Simultaneously, the inertia vibrating equipment (as vibratory sieve) of commonly using at present, be usually operated at resonance state far away, be the intrinsic frequency of its operating frequency much larger than system, this has also just caused inertia vibrating equipment usually will pass through resonance region in cycling start and docking process, common eccentric block can't be adjusted the equipment amplitude with rotation speed change, causes the amplitude of inertial equipment when crossing resonance region very large, and the life-span of vibratory equipment is caused to certain influence.
Chinese patent (application number is 02143488) discloses a kind of inertia vibration generator, its structure is comprised of eccentric block, main shaft, back-moving spring, guide rod etc., eccentric block is arranged on guide rod, and can endwisely slip along guide rod, guide rod is fixed on main shaft upper reset spring difference eccentric block and is connected with holder.In start-up course, the barycenter radius of turn of eccentric block increases to maximum continuously from minimum of a value, and in docking process, the barycenter radius of turn of eccentric block is reduced to minimum of a value continuously from maximum.Its eccentric block is fixed on guide rod, limited by guide rod, and adjustable extent is little, and due to spatial constraints, the eccentric block small volume, its quality is less, can not meet the requirement of large-scale mechanical vibration.
Summary of the invention
The present invention has overcome deficiency of the prior art, and the amplitude self adaptation swiveling wheel that a kind of adjustable extent is large, applied widely, can realize low frequency short arc high frequency high amplitude is provided.
The present invention adopts following technical proposals: a kind of amplitude self adaptation swiveling wheel, comprise rotating circular disk, eccentric block, spring and bearing pin, it is characterized in that wobbler shaft is fixed on rotating circular disk, the center of wobbler shaft does not overlap with the rotating circular disk center, the hole of eccentric block and wobbler shaft adopt loose fit, pin shaft hole is arranged, fixed pin shaft on rotating circular disk.
The hole of eccentric block and wobbler shaft adopt loose fit, and eccentric block and wobbler shaft can relatively rotate.The axle center of eccentric block does not overlap with the swiveling wheel pivot, and when swiveling wheel rotated, the centrifugal force that eccentric block produces was not by its axle center, to produce turning moment, this turning moment overcomes spring force rotates eccentric block, and along with the increase of swiveling wheel rotating speed, centrifugal force increases, turning moment increases, the eccentric throw that between eccentric block, angle reduces two eccentric blocks gradually increases gradually, impels the vibratory equipment amplitude to increase, when two eccentric blocks close up, it is maximum that eccentric throw reaches, the amplitude maximum.With bearing pin restriction eccentric block hard-over, can adjust the peak swing of swiveling wheel, easily the peak swing of set device.
Owing to adopting technique scheme the present invention to have following beneficial effect:
1, can realize the adaptive ability of low frequency short arc high frequency high amplitude;
2, in the cycling start process, lower than working speed the time, the angle of two eccentric blocks is larger, and eccentric throw is less, makes vibratory equipment greatly reduce at the amplitude that resonance region obtains, and can effectively reduce resonance harm;
3, in docking process, the angle of two eccentric blocks reduces and sharply increases with rotating speed, and eccentric throw sharply reduces, and corresponding the reducing of its amplitude of resonance region, can reduce equally the resonance harm in docking process;
4, in normal operation, can change the angle between two eccentric blocks by changing the speed of mainshaft, thereby the change eccentric throw makes the swiveling wheel can adjusting amplitude in operation process;
5, the volume of eccentric block is not subjected to its structural limitations, can be applicable to large-scale vibrating equipment, and the scope of application is wide.
The accompanying drawing explanation
The present invention is further described below in conjunction with accompanying drawing.
Fig. 1 is the front view of swiveling wheel when static.
Fig. 2 is the side view of swiveling wheel when static.
Front view when Fig. 3 is the maximum exciting force of swiveling wheel.
Side view when Fig. 4 is the maximum exciting force of swiveling wheel.
Front view when Fig. 5 is bearing pin adjusting exciting force.
Side view when Fig. 6 is bearing pin adjusting exciting force.
1. rotating circular disks in figure, 2. rotating shaft, 3. eccentric block, 4. spring, 5. pin shaft hole, 6. bearing pin, 7. wobbler shaft.
The specific embodiment
Figure 1 and Figure 2, amplitude self adaptation swiveling wheel provided by the invention, comprise rotating circular disk 1, eccentric block 3, spring 4 and bearing pin 6, described spring 4 one ends are fixed on rotating circular disk 1, and the other end connects with eccentric block 3, and wobbler shaft 7 is fixed on rotating circular disk 1, the center of wobbler shaft 7 does not overlap with the center of rotating circular disk 1, the hole of eccentric block 3 and wobbler shaft 7 adopt loose fit, pin shaft hole 5 are arranged, fixed pin shaft 6 on rotating circular disk 1.
When swiveling wheel started to rotate, rotating circular disk 1 was rotated axle 2 driven rotary, and rotating circular disk 1 drives eccentric block 3 motions, the centrifugal force that eccentric block 3 produces, by its axle center, the eccentric block axle center is produced to turning moment, make eccentric block 3 overcome spring 4 pulling force moment and rotate, increase along with the swiveling wheel rotating speed, two eccentric blocks 3 are constantly close, and amplitude constantly increases, when two eccentric blocks 3 close up, it is maximum that amplitude reaches, as shown in Figures 3 and 4.
As shown in Figure 5, if by after pin shaft hole 5 fixed pin shafts 6, after swiveling wheel surpassed certain rotating speed, eccentric block was under the stopping of bearing pin, and eccentric block is no longer mutually close, and amplitude remains unchanged, and is very easy to adjust the amplitude of normal operation.Can limit the eccentric block hard-over by changing the bearing pin position, can adjust the peak swing of swiveling wheel, easily the peak swing of set device.
Claims (1)
1. amplitude self adaptation swiveling wheel, comprise rotating circular disk, eccentric block, spring and bearing pin, it is characterized in that wobbler shaft is fixed on rotating circular disk, the center of wobbler shaft does not overlap with the rotating circular disk center, the hole of eccentric block and wobbler shaft adopt loose fit, pin shaft hole is arranged, fixed pin shaft on rotating circular disk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103717172A CN103394457A (en) | 2013-08-23 | 2013-08-23 | Amplitude self-adaptive rotating wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103717172A CN103394457A (en) | 2013-08-23 | 2013-08-23 | Amplitude self-adaptive rotating wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103394457A true CN103394457A (en) | 2013-11-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103717172A Pending CN103394457A (en) | 2013-08-23 | 2013-08-23 | Amplitude self-adaptive rotating wheel |
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| CN (1) | CN103394457A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108144502A (en) * | 2017-12-15 | 2018-06-12 | 柳州飞升鹏科技有限公司 | A kind of low noise drug mixing arrangement |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1558850A1 (en) * | 1967-09-30 | 1970-07-23 | Losenhausen Maschb Ag | Unbalance vibrator |
| CN2079533U (en) * | 1990-09-17 | 1991-06-26 | 廖继章 | Vibration exciting device capable of self-adjusting eccentricity |
| JPH09323068A (en) * | 1996-06-07 | 1997-12-16 | Chowa Kogyo Kk | Method for controlling phase difference of eccentric weight for excitation and mechanism for controlling the same phase |
| CN2513684Y (en) * | 2001-11-16 | 2002-10-02 | 李汉鹏 | Device for regulating eccentric balance weight of vibration motor |
| CN2933611Y (en) * | 2006-07-21 | 2007-08-15 | 吴忠明 | Vibration inertial device |
| CN202621425U (en) * | 2011-12-31 | 2012-12-26 | 武汉科技大学 | Double eccentric block type vibration generator |
-
2013
- 2013-08-23 CN CN2013103717172A patent/CN103394457A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1558850A1 (en) * | 1967-09-30 | 1970-07-23 | Losenhausen Maschb Ag | Unbalance vibrator |
| CN2079533U (en) * | 1990-09-17 | 1991-06-26 | 廖继章 | Vibration exciting device capable of self-adjusting eccentricity |
| JPH09323068A (en) * | 1996-06-07 | 1997-12-16 | Chowa Kogyo Kk | Method for controlling phase difference of eccentric weight for excitation and mechanism for controlling the same phase |
| CN2513684Y (en) * | 2001-11-16 | 2002-10-02 | 李汉鹏 | Device for regulating eccentric balance weight of vibration motor |
| CN2933611Y (en) * | 2006-07-21 | 2007-08-15 | 吴忠明 | Vibration inertial device |
| CN202621425U (en) * | 2011-12-31 | 2012-12-26 | 武汉科技大学 | Double eccentric block type vibration generator |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108144502A (en) * | 2017-12-15 | 2018-06-12 | 柳州飞升鹏科技有限公司 | A kind of low noise drug mixing arrangement |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131120 |