CN1971238A - Oscillator - Google Patents
Oscillator Download PDFInfo
- Publication number
- CN1971238A CN1971238A CNA2005101017104A CN200510101710A CN1971238A CN 1971238 A CN1971238 A CN 1971238A CN A2005101017104 A CNA2005101017104 A CN A2005101017104A CN 200510101710 A CN200510101710 A CN 200510101710A CN 1971238 A CN1971238 A CN 1971238A
- Authority
- CN
- China
- Prior art keywords
- oscillator
- counterbalance weight
- test tube
- limited rack
- balance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention relates to a medical instrument, specifically the oscillator. The oscillator includes test tube oscillating table, bearing holder, bearing, anti-rotate ring, anti-rotate back-moving spring, counterbalance eccentric axis, spacing rack and electric engine, the spacing rack is fixed to the electric engine stator, the two ends of the anti-rotate back-moving spring are anti-rotate ring and the spacing rack, it is characterized in that it includes counterbalance which is under the electric engine axis. The oscillator in the invention can balance the master vector and the principal matrix by setting the lower counterbalance, the unbalance of rotation direction of the whole oscillator can be prevented, and the balance of the whole oscillator is improved.
Description
Technical field
The present invention relates to a kind of medical instrument, particularly a kind of oscillator.
Background technology
Oscillator mainly contains following components and forms: the test tube shaking table, bearing holder (housing, cover), bearing, anti-turn-taking, anti-rotation draws in spring, the counterbalance weight excentric shaft, position-limited rack, motor, counterbalance weight etc., medically be mainly used in tube shaken, test tube is put in the test tube shaking table, shake with the test tube shaking table, every bit is all made circular motion with same radius on the test tube shaking table, test tube shaking table integral body is done translation, therefore test tube is also done translation, oscillator of the prior art is owing to have only a counterbalance weight excentric shaft at most, therefore, can only the balance master vow at most, and uneven main square causes the imbalance of whole oscillator on rotation direction.
Summary of the invention
Technical matters to be solved by this invention is, a kind of oscillator that all obtains balance on main resultant master's square is provided.
Technical matters to be solved by this invention is achieved by the following technical solution:
A kind of oscillator, it comprises test tube shaking table, bearing holder (housing, cover), bearing, anti-ly turn-take, anti-rotation back-moving spring, counterbalance weight excentric shaft, position-limited rack and motor, position-limited rack is fixed on the motor stator, anti-rotation back-moving spring two ends are respectively anti-and turn-take and position-limited rack, it is characterized in that it also comprises the counterbalance weight that is positioned at the motor shaft bottom.
The installation of oscillator of the present invention by the bottom counterbalance weight, not only balance main arrow, also balance main square, prevented the imbalance of whole oscillator on rotation direction, improved the balance of whole oscillator.
Description of drawings
Fig. 1 is the partial sectional view of oscillator of the present invention;
Fig. 2 removes A after the upper member to view for Fig. 1;
Embodiment
Referring to Fig. 1 and Fig. 2, a kind of oscillator, it comprises test tube shaking table 1, bearing holder (housing, cover) 2, bearing 3, anti-ly turn-take 4, anti-rotation back-moving spring 6, counterbalance weight excentric shaft 7, position-limited rack 10 and motor 12, position-limited rack 10 is fixed on motor 12 stators, anti-rotation back-moving spring 6 two ends are respectively anti-and turn-take 4 and position-limited rack 10, in addition, it also comprises the counterbalance weight 13 that is positioned at the motor shaft bottom.
Test tube shaking table 1 is enclosed within on the bearing holder (housing, cover) 2, and bearing holder (housing, cover) 2 is enclosed within on the outer ring of bearing, and the sulculus of four equal portions is arranged in bearing holder (housing, cover) 2 bottoms, and anti-turn-taking 4 is enclosed within on the excircle of bearing holder (housing, cover) 2 lower ends, and with screw 5 bearing holder (housing, cover) 2 and bearing 3 outer rings tightened together.Bearing 3 inner rings are installed on the counterbalance weight excentric shaft 7, counterbalance weight excentric shaft 7 is installed on the motor shaft and uses screw 8 fastening, position-limited rack 10 is fixed on the motor stator by screw 9 by pad post 11, two projectioies and form stopper slot 101 about position-limited rack 10 is provided with, anti-4 the arm of turn-taking just drops in the stopper slot 101, prevent turn-taking 4 by 6 tensions of anti-rotation back-moving spring, swing to prevent bearing holder (housing, cover) 2.In the lower end of motor shaft counterbalance weight 13 is installed, this counterbalance weight 13 is fixed in motor shaft by screw 14, and counterbalance weight excentric shaft 7 all has eccentric structure with counterbalance weight 13.
Test tube shaking table 1 each point under 6 controls of anti-rotation back-moving spring is done the circular motion that orbital radius is e during motor 12 revolutions, and integral body is done translation.The effect of medium in vitro of vibrating is played in the vibration that is close together of test tube and test tube shaking table 1 arbitrfary point.Test tube shaking table 1, bearing holder (housing, cover) 2, bearing 3, anti-turn-take 4 coaxial, barycenter is done gyration with respect to motor shaft, produce centrifugal force, this centrifugal force acts on the casing by motor stator, produce vibration and noise, therefore must give and balance, the present invention has adopted two plane balancing, it is the common balance of eccentric mass of the counterbalance weight eccentric mass and the lower end counterbalance weight 13 of counterbalance weight excentric shaft 7, angle from theoretical mechanics, main exactly the arrow with main square all obtains balance, this method balance oscillator is respond well, test tube shaking table 1 during installation, counterbalance weight excentric shaft 7, counterbalance weight 13 three's barycenter must coplane, and this plane must pass through axis of rotation, and the off-centre of counterbalance weight 13 must with the off-centre of test tube shaking table 1 in the same way.
The installation of oscillator of the present invention by the bottom counterbalance weight, not only balance main arrow, also balance main square, prevented the imbalance of whole oscillator on rotation direction, improved the balance of whole oscillator.
The present invention also has some other distortion or improvement.If those skilled in the art are subjected to the change or the improvement of the conspicuous unsubstantiality that inspiration of the present invention makes, all belong to the protection domain of claims of the present invention.
Claims (3)
1, a kind of oscillator, it comprises test tube shaking table, bearing holder (housing, cover), bearing, anti-ly turn-take, anti-rotation draws in spring, counterbalance weight excentric shaft, position-limited rack and motor, position-limited rack is fixed on the motor stator, anti-rotation back-moving spring two ends are respectively anti-and turn-take and position-limited rack, it is characterized in that it also comprises the counterbalance weight that is positioned at the motor shaft bottom.
2, oscillator according to claim 1 is characterized in that, the size of this counterbalance weight is determined by the size and the quality of above-mentioned each parts.
3, oscillator according to claim 1 is characterized in that, position-limited rack is provided with two projectioies and forms stopper slot, and anti-arm of turn-taking falls within the stopper slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005101017104A CN1971238A (en) | 2005-11-25 | 2005-11-25 | Oscillator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005101017104A CN1971238A (en) | 2005-11-25 | 2005-11-25 | Oscillator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1971238A true CN1971238A (en) | 2007-05-30 |
Family
ID=38112161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2005101017104A Pending CN1971238A (en) | 2005-11-25 | 2005-11-25 | Oscillator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1971238A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106040071A (en) * | 2016-07-08 | 2016-10-26 | 上海大学 | Static balance oscillating mechanism |
| CN106318847A (en) * | 2016-08-22 | 2017-01-11 | 杭州奥盛仪器有限公司 | Nucleic acid extraction equipment capable of eccentric oscillation |
-
2005
- 2005-11-25 CN CNA2005101017104A patent/CN1971238A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106040071A (en) * | 2016-07-08 | 2016-10-26 | 上海大学 | Static balance oscillating mechanism |
| CN106318847A (en) * | 2016-08-22 | 2017-01-11 | 杭州奥盛仪器有限公司 | Nucleic acid extraction equipment capable of eccentric oscillation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |