CN201799330U - Centrifugal machine - Google Patents
Centrifugal machine Download PDFInfo
- Publication number
- CN201799330U CN201799330U CN2010205279795U CN201020527979U CN201799330U CN 201799330 U CN201799330 U CN 201799330U CN 2010205279795 U CN2010205279795 U CN 2010205279795U CN 201020527979 U CN201020527979 U CN 201020527979U CN 201799330 U CN201799330 U CN 201799330U
- Authority
- CN
- China
- Prior art keywords
- base
- frequency converter
- rotor
- centrifuge
- centrifugal machine
- 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.)
- Expired - Fee Related
Links
- 239000000428 dust Substances 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 239000006096 absorbing agent Substances 0.000 abstract 1
- 230000001133 acceleration Effects 0.000 abstract 1
- 230000035939 shock Effects 0.000 abstract 1
- 230000008859 change Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 241000700605 Viruses Species 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229940088597 hormone Drugs 0.000 description 1
- 239000005556 hormone Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 102000039446 nucleic acids Human genes 0.000 description 1
- 108020004707 nucleic acids Proteins 0.000 description 1
- 150000007523 nucleic acids Chemical class 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
Landscapes
- Centrifugal Separators (AREA)
Abstract
The utility model discloses a centrifugal machine, which comprises a base, a supporting table, a rotor, a rotating shaft and a three-phase asynchronous motor. The supporting table is fixed on the base. The three-phase asynchronous motor fixed on the base can drive the rotor to rotate by a transmission. The centrifugal machine also comprises a programmable logic controller (PLC) frequency converter capable of controlling the three-phase asynchronous motor. The PLC frequency converter controls the positive rotation, the inverse rotation and rotating speed of the motor. Compared with the prior art, the utility model has the advantages that due to a shock absorber, the operation of the centrifugal machine is more stable; and due to adoption of the PLC frequency converter, the centrifugal machine can control the positive rotation, acceleration and deceleration of the motor without a brake system so as to reduce the possibility of generating an accident and completely eliminate rubber dust.
Description
Technical field
The utility model relates to a kind of centrifuge, the especially a kind of centrifuge that can regulate rotating speed.
Background technology
Centrifuge is widely applied to every field, it is to be used for dehydration, sample separation, reagent (comprising blood, organism hormone, virus, protein, nucleic acid, chloroplaset or the like), the sample that needs are separated is put into the hole of rotor fixing in the centrifuge rotating shaft, and motor begins rotation.Centrifugal force produces, rotating speed is high more, centrifugal force is big more, sample relies on centrifugal action just can separate, the less centrifugal force of different material density is little in the sample, and the centrifugal force that density is bigger is big, under action of centrifugal force, stressed bigger to moving relative to the direction away from rotating shaft, the material of different densities can be separated from each other like this.Existing centrifuge generally all is by the belt pulley transmission, and by rubber skin skidding, rotating speed can be raised to very soon quickly when starting, and the uneven words of blowing can cause the centrifuge sharp pounding; When needs slow down, by skidding, produce a large amount of dust behind the rubber brake pad wear, influence the quality of product.
The utility model content
The technical problems to be solved in the utility model provides a kind of centrifuge that can control the centrifuge rotor rotary speed.
In order to solve the problems of the technologies described above, centrifuge of the present utility model, comprise base, brace table, rotor, rotating shaft and threephase asynchronous machine, brace table is fixed on the base, and the threephase asynchronous machine that is fixed on the base can pass through the actuator drives rotor rotation, and described centrifuge also comprises the PLC frequency converter that can control described threephase asynchronous machine, the just commentaries on classics of this PLC Frequency Converter Control motor, rotary speed.
Further, described brace table is connected on the described base by a plurality of dampers.
Further, described rotor is the detachable rotor of changing.
Because adopted above technical scheme, the utility model compared with prior art has following advantage: owing to be provided with damper, the centrifuge running is more steady.Owing to adopted the PLC frequency converter, can control the just commentaries on classics of motor, quicken, slow down, thereby need not to install brakes, reduced the possibility of generation accident, thoroughly eliminated the appearance of rubber dust.
Description of drawings
Be described in further detail below in conjunction with accompanying drawing and embodiment of the present utility model:
Fig. 1 is the schematic diagram of centrifuge.
The specific embodiment
Centrifuge as shown in Figure 1, comprise base 1, brace table 2, rotor 3, rotating shaft 4 and threephase asynchronous machine 5, brace table 2 are fixed on the base 1, be fixed on the base 1 threephase asynchronous machine 5 and can pass through the belt drives rotor rotation, PLC frequency converter 6 links to each other with threephase asynchronous machine 5, the just commentaries on classics of PLC frequency converter 6 control motors, rotary speed.The power input of threephase asynchronous machine 5 links to each other with PLC frequency converter 6, and threephase asynchronous 5 provides electric current by PLC frequency converter 6, and PLC frequency converter 6 can change the frequency of the electric current of input threephase asynchronous machine 5.By the programmable logic controller (PLC) setting of PLC frequency converter, when connecting power supply, the frequency ratio of PLC frequency converter output current is lower, thereby motor carries out the rotation of low speed, can not produce vibrations.After a period of time, the frequency of PLC frequency converter output current improves, and what motor rotated speeds up needed rotating speed when reaching work.When centrifuge finish centrifugal after, the PLC frequency converter can be controlled motor speed again and slow down, and stops.Damper is connected on the base, and this damper is a spring, and spring one end is connected in base one end and is connected on the brace table, uses this spring vibration damper, has further reduced the vibrations of centrifuge.
The rotor of centrifuge be can dismounting and change rotor, can according to want the difference of centrifugal material, change different centrifugal rotors.
From present embodiment as can be seen, the utility model can well be controlled the rotating speed of centrifuge, according to different demands, sets different programs in the PLC frequency converter, reaches the whole process control to the rotating speed of centrifuge.
Above embodiment only is the utility model a kind of embodiment wherein, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (3)
1. centrifuge, comprise base, brace table, rotor, rotating shaft and threephase asynchronous machine, brace table are fixed on the base, and the threephase asynchronous machine that is fixed on the base can pass through the actuator drives rotor rotation, it is characterized in that described centrifuge also comprises the PLC frequency converter that can control described threephase asynchronous machine.
2. centrifuge according to claim 1 is characterized in that described brace table is connected on the described base by a plurality of dampers.
3. centrifuge according to claim 1 is characterized in that, described rotor is the detachable rotor of changing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205279795U CN201799330U (en) | 2010-09-14 | 2010-09-14 | Centrifugal machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205279795U CN201799330U (en) | 2010-09-14 | 2010-09-14 | Centrifugal machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201799330U true CN201799330U (en) | 2011-04-20 |
Family
ID=43868848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205279795U Expired - Fee Related CN201799330U (en) | 2010-09-14 | 2010-09-14 | Centrifugal machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201799330U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110769939A (en) * | 2017-06-27 | 2020-02-07 | 泰肯贸易股份公司 | Centrifugal processing unit |
-
2010
- 2010-09-14 CN CN2010205279795U patent/CN201799330U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110769939A (en) * | 2017-06-27 | 2020-02-07 | 泰肯贸易股份公司 | Centrifugal processing unit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104141212A (en) | Full-automatic washing machine | |
| CN107152379B (en) | A kind of Magnus (Magnus) effect vertical-shaft wind machine rotor positive and negative rotation control and implementation method | |
| CN201799330U (en) | Centrifugal machine | |
| CN201670963U (en) | A kind of sock setting machine | |
| WO2009054727A3 (en) | Control of heavy machines | |
| CN203791176U (en) | Variable-torque starting type energy-saving vibration exciter | |
| CN204761357U (en) | Control device of silicon controlled speed-regulating range hood | |
| CN106301134A (en) | Control method and control device of silicon controlled speed-regulating range hood | |
| CN204135557U (en) | A kind of novel with micro-frequency converter laser carving device | |
| CN208052248U (en) | A kind of automatic tubular pile centrifugal machine | |
| CN202174626U (en) | Adjustable vibration plate servo control device applied to brick making machines | |
| CN202151590U (en) | Spherical cobalt hydroxide cleaning device | |
| CN210615067U (en) | Centrifuge transmission mechanism with brake | |
| CN101585018A (en) | Centrifuge deceleration method and centrifuge for implementing the method | |
| CN201711879U (en) | Novel resin grinding wheel forming mechanism | |
| CN209010656U (en) | Cotton cleaning and dust removing unit main motor energy conserving system | |
| CN201883202U (en) | Spindle drive mechanism | |
| CN109179164B (en) | Vibration reduction system and vibration reduction method for high-speed elevator | |
| CN202427559U (en) | Horizontal-type vibration centrifuge | |
| CN207891476U (en) | A kind of active yarn transmission mechanism of spinning machine | |
| CN102354133A (en) | Adjustable vibration disk servo control system applied to brick making machine | |
| CN200945478Y (en) | Novel vibrating device | |
| CN206237340U (en) | A kind of ball mill efficient low-consume control device | |
| CN205392776U (en) | Two -way rotatory centrifuge | |
| CN202535305U (en) | Flotation machine permanent magnet driving system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110420 Termination date: 20160914 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |