CN205236205U - Centrifugal separator of timeing for a long time - Google Patents
Centrifugal separator of timeing for a long time Download PDFInfo
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- CN205236205U CN205236205U CN201520840846.6U CN201520840846U CN205236205U CN 205236205 U CN205236205 U CN 205236205U CN 201520840846 U CN201520840846 U CN 201520840846U CN 205236205 U CN205236205 U CN 205236205U
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Abstract
The utility model discloses a centrifugal separator of timeing for a long time, including centrifugal separator cavity, pivot, rotor, motor and fixed cavity, fixed cavity be located centrifugal separator cavity under switch on mutually through the through -hole between fixed cavity and the centrifugal separator cavity, the pivot is connected to the motor, the rotor is connected in the pivot, the motor is installed in fixed cavity, the pivot is passed the through -hole and is stretched into in the centrifugal separator cavity, the rotor is located the centrifugal separator cavity, the motor drive pivot is rotatory, fixed cavity lateral wall is equipped with the vent. The utility model discloses a perfect and stable motor heat dissipation has promoted continuous operating time by a wide margin, has improved the degree of accuracy of experiment sampling, has practiced thrift the human cost.
Description
Technical field
The utility model relates to a kind of normal temperature type centrifuge, for chemical industry, medicine, the technical fields such as laboratory. Specifically, relate to a kind of long-time timing centrifuge.
Background technology
In industry, the stream time of existing normal temperature type centrifuge only had about 90 minutes; Tracing it to its cause, is because the motor that drives rotor high-speed rotation can, because overheated and cause power output unstable, cause ensureing the product quality of centrifugal processing after working long hours. Therefore existing normal temperature type centrifuge seems more unable in the time separating the equal quality sample of some more difficult separation, need to repeatedly repeatedly extract sampling to equal quality sample and could obtain desirable extraction results. Operating efficiency is lower, and spended time is longer. In addition, centrifuge rotor is enough to realize to accelerating to the Acceleration of starting process that the rated rotational frequency of sample separation needs a period of time from static, and existing normal temperature type centrifuge cannot be distinguished rated rotational frequency and the acceleration rotating speed lower than rated rotational frequency, cause and cannot hold accurately the duration of rated rotational frequency, and then the precision deficiency that causes experiment to adopt. How overcoming the problems referred to above is problems that those skilled in the art need to think deeply.
Utility model content
For addressing the above problem, the utility model provides a kind of long-time timing centrifuge.
Concrete technical scheme of the present utility model is as follows:
A kind of long-time timing centrifuge, comprises centrifuge cavity, rotating shaft, and rotor, motor and fixing chamber, described fixing chamber passes through the mutual conducting of through hole under centrifuge cavity, between described fixing chamber and centrifuge cavity; Described motor connection rotating shaft, described rotating shaft connects rotor; Described motor is installed in fixing chamber, and described rotating shaft is stretched in centrifuge cavity through through hole, and described rotor is positioned at centrifuge cavity, described motor-driven rotatable shaft rotation; Described fixing chamber sidewall is provided with ventilating opening.
By adopting this technical scheme: in practice, motor-driven rotatable shaft rotation, rotating shaft rotor driven is high speed rotating in centrifuge cavity, rotor drives the air in centrifuge cavity to produce spiral air flow in rotation process, this spiral air flow enters fixing chamber from through hole, derives through motor surface and from the ventilating opening of fixing chamber sidewall. Provide one to stablize lasting wind cooling temperature lowering with this spiral air flow to motor surface, thereby overcome in prior art the motor problems of excessive heat occurring that works long hours, significantly improved the stream time of centrifuge.
Preferably, in above-mentioned long-time timing centrifuge, also comprise cover plate, described cover plate is fixed in rotating shaft, and described cover plate exists space directly over through hole and between described cover plate and through hole.
By adopting this technical scheme: utilize cover plate to cover through hole, prevent that the material of separating out in the centrifuge course of work from falling to lock chamber from through hole and polluting indoor, the spiral air flow that rotor produces simultaneously still can flow in fixing chamber the space between cover plate and through hole, brushes the sustained wind of realizing motor in motor surface but cold.
More preferably, above-mentioned long-time timing centrifuge is also built-in with control module, and described control module comprises the fast unit of meter, identifying unit and counting unit; Described counting unit is for controlling the working time length of motor; The fast unit of described meter is sent to identifying unit for detection of the rotating speed of rotor and by the rotating speed recording; In described identifying unit, write in advance decision threshold, whether be greater than this decision threshold for the speed revolution value of judging the fast unit input of described meter; When the speed revolution value of described meter fast unit input is more than or equal to the decision threshold writing in advance in identifying unit, identifying unit sends a signal to counting unit, makes counting unit startup work.
By adopting this technical scheme: when centrifuge rotor accelerates from static beginning, count the real-time rotate speed of fast unit inspection rotor and the rotating speed recording is sent to identifying unit, identifying unit, according to the decision threshold writing in advance, judges whether the current rotating speed of rotor reaches the rated rotational frequency that is enough to realize sample separation. Need to continue to accelerate if the rotating speed of current rotor lower than level threshold value, is judged to be rotor, counting unit is not worked. And the rotating speed of working as rotor is more than or equal to level threshold value, judge that the current rotating speed of rotor has reached rated rotational frequency, identifying unit sends a signal to counting unit, with the continuous working period of counting unit control motor. Thereby realize the accurate assurance of the continuous firing duration to rated rotational frequency.
Compared with prior art, the utility model is simple in structure, is easy to preparation. Realize perfect and stable motor radiating, significantly promoted stream time, improved the degree of accuracy of experiment sampling, saved human cost.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment 1, and control module is build-in components, therefore not shown in Fig. 1.
In above-mentioned accompanying drawing, the corresponding relation of each parts and Reference numeral is as follows:
1, centrifuge cavity; 2, rotating shaft; 3, rotor; 4, motor; 5, fixing chamber; 6, through hole; 7, cover plate; 8, ventilating opening.
Detailed description of the invention
In order to be illustrated more clearly in the technical solution of the utility model, below in conjunction with accompanying drawing 1, the utility model is further described.
A kind of long-time timing centrifuge, comprises centrifuge cavity 1, rotating shaft 2, rotor 3, motor 4, fixing chamber 5, cover plate 7 and control module. Wherein, described fixing chamber 5 under centrifuge cavity 1, between described fixing chamber 5 and centrifuge cavity 1 by the mutual conducting of through hole 6; Described motor 4 connection rotating shafts 2, described rotating shaft 2 connects rotor 3; Described cover plate 7 is fixed in rotating shaft 2, and described cover plate 7 exists space directly over through hole 6 and between described cover plate 7 and through hole 6. Described motor 4 is installed in fixing chamber 5, and described rotating shaft 2 is stretched in centrifuge cavity 1 through through hole 6, and described rotor 3 is positioned at centrifuge cavity 1, and described motor 4 drive shafts 2 are rotated; Described fixing chamber 5 sidewalls are provided with ventilating opening 8.
Described control module is built in long-time timing centrifuge, comprises and count fast unit, identifying unit and counting unit; Described counting unit is for controlling the working time length of motor; The fast unit of described meter is sent to identifying unit for detection of the rotating speed of rotor and by the rotating speed recording; In described identifying unit, write in advance decision threshold, whether be greater than this decision threshold for the speed revolution value of judging the fast unit input of described meter; When the speed revolution value of described meter fast unit input is more than or equal to the decision threshold writing in advance in identifying unit, identifying unit sends a signal to counting unit, makes counting unit startup work. On long-time timing centrifuge, be also provided with input unit, for counting unit being inputted to default work duration.
In practice, the course of work is as follows:
First, to the default work duration of counting unit input, can preset according to actual needs work duration 10 seconds to 59 points 50 seconds, 1 hour to 99 hours 59 points of two time ranges by input unit. Then, starter motor 4, motor 4 drive shafts 2 are rotated, rotating shaft 2 rotor drivens 3 rotate in the interior acceleration of centrifuge cavity 1, count the real-time rotate speed of fast unit inspection rotor 3 and the rotating speed recording is sent to identifying unit, identifying unit, according to the decision threshold writing in advance, judges whether the current rotating speed of rotor 3 reaches the rated rotational frequency that is enough to realize sample separation. Need to continue to accelerate if the rotating speed of rotor 3 lower than level threshold value, is judged to be rotor 3, counting unit is not worked. And the rotating speed of working as rotor 3 is more than or equal to level threshold value, judge that the current rotating speed of rotor has reached rated rotational frequency, identifying unit sends a signal to counting unit, and counting unit control motor 3 stops accelerating rotating shaft 2, continues rotation according to default work duration with rated rotational frequency. To realize the accurate control to motor 4 centrifugal work markets. In process, rotor 3 drives the air in centrifuge cavity 1 to produce spiral air flow in rotation process, and this spiral air flow enters fixing chamber 5 from through hole 6, blows through motor 4 surfaces, provide a lasting wind cooling temperature lowering to motor surface, and derive from the ventilating opening 8 of fixing chamber 5 sidewalls. After testing, product of the present utility model can be worked continually and steadily and be reached 99 hours 59 minutes, is far longer than the continuous operation duration of 99 minutes of like product on present market.
The above; it is only specific embodiment of the utility model; but protection domain of the present utility model is not limited to this; the technical staff of any skilled is in the disclosed technical scope of the utility model; the variation that can expect easily or replacement, within all should being encompassed in protection domain of the present utility model. Protection domain of the present utility model is as the criterion with the protection domain of claims.
Claims (3)
1. a long-time timing centrifuge, comprises centrifuge cavity (1), rotating shaft (2), rotor (3) and motor (4); It is characterized in that: also comprise fixing chamber (5), described fixing chamber (5) be positioned at centrifuge cavity (1) under, between described fixing chamber (5) and centrifuge cavity (1) by through hole (6) conducting mutually; Described motor (4) connection rotating shaft (2), described rotating shaft (2) connects rotor (3); Described motor (4) is installed in fixing chamber (5), and described rotating shaft (2) is stretched in centrifuge cavity (1) through through hole (6), and described rotor (3) is positioned at centrifuge cavity (1), described motor (4) drive shaft (2) rotation; Described fixing chamber (5) sidewall is provided with ventilating opening (8).
2. a kind of long-time timing centrifuge as claimed in claim 1, it is characterized in that: also comprise cover plate (7), it is upper that described cover plate (7) is fixed on rotating shaft (2), described cover plate (7) be positioned at through hole (6) directly over and between described cover plate (7) and through hole (6), there is space.
3. a kind of long-time timing centrifuge as claimed in claim 2, is characterized in that: also comprise control module, described control module comprises the fast unit of meter, identifying unit and counting unit; Described counting unit is for controlling the continuous working period length of motor; The fast unit of described meter is sent to identifying unit for detection of the rotating speed of rotor and by the rotating speed recording; In described identifying unit, write in advance decision threshold, whether be greater than this decision threshold for the speed revolution value of judging the fast unit input of described meter; When the speed revolution value of described meter fast unit input is more than or equal to the decision threshold writing in advance in identifying unit, identifying unit sends a signal to counting unit, makes counting unit startup work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520840846.6U CN205236205U (en) | 2015-10-28 | 2015-10-28 | Centrifugal separator of timeing for a long time |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520840846.6U CN205236205U (en) | 2015-10-28 | 2015-10-28 | Centrifugal separator of timeing for a long time |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205236205U true CN205236205U (en) | 2016-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520840846.6U Active CN205236205U (en) | 2015-10-28 | 2015-10-28 | Centrifugal separator of timeing for a long time |
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| CN (1) | CN205236205U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106622695A (en) * | 2015-10-28 | 2017-05-10 | 贺默(上海)仪器科技有限公司 | Long-time time keeping centrifugal machine |
-
2015
- 2015-10-28 CN CN201520840846.6U patent/CN205236205U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106622695A (en) * | 2015-10-28 | 2017-05-10 | 贺默(上海)仪器科技有限公司 | Long-time time keeping centrifugal machine |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |