CN111686949A - High-speed vacuum positioning centrifuge - Google Patents
High-speed vacuum positioning centrifuge Download PDFInfo
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- CN111686949A CN111686949A CN202010683756.6A CN202010683756A CN111686949A CN 111686949 A CN111686949 A CN 111686949A CN 202010683756 A CN202010683756 A CN 202010683756A CN 111686949 A CN111686949 A CN 111686949A
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- centrifugal
- centrifuge
- rotor
- synchronizing wheel
- servo motor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B15/00—Other accessories for centrifuges
- B04B15/08—Other accessories for centrifuges for ventilating or producing a vacuum in the centrifuge
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B15/00—Other accessories for centrifuges
- B04B15/02—Other accessories for centrifuges for cooling, heating, or heat insulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B7/00—Elements of centrifuges
- B04B7/02—Casings; Lids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B9/00—Drives specially designed for centrifuges; Arrangement or disposition of transmission gearing; Suspending or balancing rotary bowls
- B04B9/02—Electric motor drives
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B9/00—Drives specially designed for centrifuges; Arrangement or disposition of transmission gearing; Suspending or balancing rotary bowls
- B04B9/08—Arrangement or disposition of transmission gearing ; Couplings; Brakes
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- Centrifugal Separators (AREA)
Abstract
The invention discloses a high-speed vacuum positioning centrifugal machine in the technical field of centrifugal machines, which comprises a centrifugal machine shell, wherein a partition plate is transversely arranged in an inner cavity of the centrifugal machine shell, one end of the partition plate is not contacted with the side wall of the centrifuge shell, the partition plate divides the inner cavity of the centrifuge shell into an upper rotor chamber and a lower rotor chamber and a motor chamber, the invention provides a vacuum environment for the rotor chamber in the centrifugal process, the vacuum environment can eliminate the vibration caused by the friction between the centrifugal rotor and the air in the centrifugal process and greatly reduce the noise generated by the operation of the servo motor, the rotor chamber is wound with a plurality of circles of refrigerating pipes to play a refrigerating role, because the interior of the rotor chamber is in a vacuum state, heat can be quickly conducted, and the condensation phenomenon can be effectively avoided.
Description
Technical Field
The invention relates to the technical field of centrifuges, in particular to a high-speed vacuum positioning centrifuge.
Background
Centrifuges are machines that utilize centrifugal force to separate components of a mixture of liquid and solid particles or liquid and liquid. The centrifuge is mainly used for separating solid particles from liquid in suspension, or separating two liquids which have different densities and are insoluble with each other in emulsion (for example, cream is separated from milk); it can also be used to remove liquids from wet solids, such as by spin drying clothes in a washing machine; the special overspeed tubular separator can also separate gas mixtures with different densities; some settling centrifuges can also grade solid particles according to density or granularity by utilizing the characteristic that solid particles with different densities or granularities have different settling speeds in liquid.
Centrifuges are commonly used for the separation and extraction of components from various biological samples and often use high rotational speeds to ensure that the centrifugal forces are sufficiently large. The centrifugal machine is convenient to use, but the waiting time is long, the centrifugal machine matched with the automatic clamping mechanical arm is available in the market at present, the centrifugal machine is commonly provided with a horizontal rotor, but the horizontal rotor often has great air resistance in a high-speed rotating state to influence the centrifugal effect, so that the centrifugal machine is difficult to carry out high-speed centrifugation, and the centrifugal machine has great noise and heat generation.
Disclosure of Invention
The present invention is directed to a high-speed vacuum positioning centrifuge, which solves the above problems of the prior art.
In order to achieve the purpose, the invention provides the following technical scheme: a high-speed vacuum positioning centrifuge comprises a centrifuge shell, a separation plate is transversely arranged in the inner cavity of the centrifuge shell, one end of the partition plate is not contacted with the side wall of the shell of the centrifuge, the inner cavity of the shell of the centrifuge is divided into an upper rotor chamber and a lower rotor chamber and a motor chamber by the partition plate, and the inner cavity of the motor chamber is provided with a centrifugal mechanism, the outer wall of the shell of the centrifugal machine is provided with a refrigerating mechanism, one side of the bottom of the shell of the centrifugal machine is provided with a vacuum tube, the outer end of the vacuum tube is provided with a vacuum pump, the other side of the shell of the centrifuge is provided with an air inlet pipe, and the outer end of the air inlet pipe is provided with an electromagnetic valve, the top of the shell of the centrifuge is provided with a rectangular notch, and two sides of the rectangular notch are provided with limiting slide rails, a sealing slide block is horizontally arranged between the inner cavities of the limiting slide rails, and the bottom of the sealing slide block is provided with a rubber sealing gasket.
Preferably, the centrifugal mechanism comprises a motor support, the motor support is fixed on the side wall of the motor chamber through a bolt, a servo motor is installed at the bottom of the motor support, an output shaft end of the servo motor penetrates through the top of the motor support, a large synchronizing wheel is sleeved at the top of the servo motor, a centrifugal support is installed at one side of the motor support and is embedded in the middle of the top of the partition plate, a centrifugal shaft rod is vertically installed at the bottom of the centrifugal support, the top end of the centrifugal shaft rod penetrates through the top of the centrifugal support, a small synchronizing wheel is installed at the bottom end of the centrifugal shaft rod, a synchronous belt is sleeved between the small synchronizing wheel and the large synchronizing wheel, a centrifugal rotor is sleeved at the top end of the centrifugal shaft rod, a U-shaped clamping groove is formed in the side wall of the centrifugal rotor, a centrifugal tube sleeve is installed in an inner cavity of the U-shaped clamping groove through a pin, and, a photosensitive position sensor is mounted above the centrifugal rotor.
Preferably, the high-speed wear-resistant bearings are mounted at the connecting part of the output shaft of the servo motor and the motor support and the connecting part of the centrifugal shaft rod and the centrifugal support.
Preferably, the large synchronizing wheel and the small synchronizing wheel are on the same horizontal plane, and the transmission ratio between the large synchronizing wheel and the small synchronizing wheel is 1: 5.
Preferably, the centrifugal pipe sleeve is movably connected with the U-shaped clamping groove through a pin rod, and the centrifugal pipe sleeve can be in a horizontal state under the centrifugal force action of the rotation of the centrifugal rotor.
Preferably, the refrigerating mechanism comprises a refrigerating pipe, the refrigerating pipe is uniformly wound on the outer wall of the shell of the centrifugal machine, and a refrigerating box body is arranged between two ends of the refrigerating pipe.
Preferably, a refrigeration compressor is installed in the inner cavity of the refrigeration box body, and two ends of the refrigeration pipe are respectively connected with the output end of the refrigeration compressor and the tail gas discharge end.
Preferably, the sealing slide block can slide between the two groups of limiting slide rails, the rubber sealing gasket can seal a rectangular opening at the top of the centrifuge shell, and a round angle is formed in one side, close to the sealing slide block, of the rubber sealing gasket.
Compared with the prior art, the invention has the beneficial effects that:
1) the invention provides a vacuum environment for the rotor chamber in the centrifugal process, the vacuum environment can eliminate the vibration caused by the friction between the centrifugal rotor and air in the centrifugal process on one hand, and can greatly reduce the noise generated by the operation of the servo motor on the other hand, the rotor chamber is wound with a plurality of circles of refrigerating pipes, the refrigerating effect is achieved, and simultaneously, the heat can be quickly conducted and the condensation phenomenon is effectively avoided because the interior of the rotor chamber is in a vacuum state;
2) the invention adopts a servo motor to drive a large synchronizing wheel, a small synchronizing wheel and a synchronizing belt structure, and is matched with a photosensitive position sensor to carry out centrifugation and realize a positioning function;
3) the top of the centrifuge shell adopts a sliding block type structure that the sealing sliding block and the rubber sealing washer are matched with each other, the sealing sliding block and the rubber sealing washer form sealing during operation, and the sealing sliding block slides open when centrifugation is completed, so that the centrifuge shell is convenient to take and use manually.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a top view of the present invention, wherein I is a state diagram of the sealing slider being opened, and II is a state diagram of the sealing slider being closed;
FIG. 3 is a schematic view of a centrifugal mechanism according to the present invention;
FIG. 4 is a schematic view of the refrigeration mechanism of the present invention;
FIG. 5 is a schematic structural diagram of the sealing slider of the present invention, wherein I is a state diagram of the sealing slider being opened, and II is a state diagram of the sealing slider being closed;
FIG. 6 is a diagram showing the operation of the centrifuge of the present invention in cooperation with a robot arm, wherein I is a position diagram of a first step and II is a position diagram of a second step.
In the drawings, the components represented by the respective reference numerals are listed below:
1-centrifuge shell, 2-separation plate, 3-rotor chamber, 4-motor chamber, 41-motor support, 42-servo motor, 43-large synchronous wheel, 44-centrifuge support, 45-centrifugal shaft rod, 46-small synchronous wheel, 47-synchronous belt, 48-centrifugal rotor, 49-U-shaped clamping groove, 50-centrifugal tube sleeve, 51-centrifugal tube, 52-photosensitive position sensor, 5-refrigeration mechanism, 501-refrigeration tube, 502-refrigeration box, 6-vacuum tube, 7-air inlet tube, 8-electromagnetic valve, 9-limit slide rail, 10-sealing slide block and 11-rubber sealing washer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides a technical solution: a high-speed vacuum positioning centrifuge comprises a centrifuge shell 1, a partition plate 2 is transversely installed in an inner cavity of the centrifuge shell 1, one end of the partition plate 2 is not contacted with the side wall of the centrifuge shell 1, the partition plate 2 divides the inner cavity of the centrifuge shell 1 into an upper rotor chamber 3 and a lower motor chamber 4, the upper rotor chamber and the lower rotor chamber are arranged in a layered mode, mutual interference between transmission and centrifugation is avoided, a centrifugation mechanism is installed in the inner cavity of the motor chamber 4 and comprises a motor support 41, the motor support 41 is fixed on the side wall of the motor chamber 4 through bolts, a servo motor 42 is installed at the bottom of the motor support 41, an output shaft end of the servo motor 42 penetrates through the top of the motor support 41, a large synchronizing wheel 43 is sleeved at the top of the servo motor 42, a centrifugal support 44 is installed at one side of the motor support 41, the centrifugal support 44 is embedded in the middle of the top of the partition plate, the top end of the centrifugal shaft rod 45 penetrates through the top of the centrifugal support 44, and high-speed wear-resistant bearings are mounted at the joint of the output shaft of the servo motor 42 and the motor support 41 and the joint of the centrifugal shaft rod 45 and the centrifugal support 44, so that the rotational wear of the joint of the output shaft of the servo motor 42 and the motor support 41 and the joint of the centrifugal shaft rod 45 and the centrifugal support 44 is reduced;
the bottom end of a centrifugal shaft rod 45 is provided with a small synchronizing wheel 46, the large synchronizing wheel 43 and the small synchronizing wheel 46 are on the same horizontal plane, the transmission ratio between the large synchronizing wheel 43 and the small synchronizing wheel 46 is 1:5, a synchronous belt 47 is sleeved between the small synchronizing wheel 46 and the large synchronizing wheel 43, the top end of the centrifugal shaft rod 45 is sleeved with a centrifugal rotor 48, the side wall of the centrifugal rotor 48 is provided with a U-shaped clamping groove 49, the inner cavity of the U-shaped clamping groove 49 is provided with a centrifugal tube sleeve 50 through a pin, the centrifugal tube sleeve 50 is movably connected with the U-shaped clamping groove 49 through the pin, the centrifugal tube sleeve 50 can be in a horizontal state under the centrifugal force action of the rotation of the centrifugal rotor 48, the inner cavity of the centrifugal tube sleeve 50 is inserted with a centrifugal tube 51, a photosensitive position sensor 52 is arranged above the centrifugal rotor 48, the servo motor 42 is adopted to drive the structures of the large synchronizing wheel 43, the small, so as to carry out centrifugation and realize the positioning function;
the outer wall of the centrifuge shell 1 is provided with a refrigerating mechanism 5, the refrigerating mechanism 5 comprises a refrigerating pipe 501, the refrigerating pipe 501 is uniformly wound on the outer wall of the centrifuge shell 1, a refrigerating box body 502 is arranged between two ends of the refrigerating pipe 501, a refrigerating compressor is arranged in an inner cavity of the refrigerating box body 502, two ends of the refrigerating pipe 501 are respectively connected with an output end of the refrigerating compressor and a tail gas discharge end, and the rotor chamber 3 is wound with a plurality of circles of refrigerating pipes 501, so that the refrigerating effect is achieved, and meanwhile, as the interior of the rotor chamber 3 is in a vacuum state, heat can be quickly conducted, and the condensation phenomenon is effectively avoided;
a vacuum tube 6 is arranged on one side of the bottom of a centrifuge shell 1, a vacuum pump is arranged at the outer end of the vacuum tube 6, an air inlet tube 7 is arranged on the other side of the centrifuge shell 1, an electromagnetic valve 8 is arranged at the outer end of the air inlet tube 7, a rectangular notch is formed in the top of the centrifuge shell 1, limiting slide rails 9 are arranged on two sides of the rectangular notch, a sealing slide block 10 is horizontally arranged between inner cavities of the two limiting slide rails 9, a rubber sealing gasket 11 is arranged at the bottom of the sealing slide block 10, the sealing slide block 10 can slide between the two limiting slide rails 9, the rubber sealing gasket 11 can seal the rectangular opening in the top of the centrifuge shell 1, a round corner is formed on one side, close to the sealing slide block 10, of the rubber sealing gasket 11, the centrifuge shell 1 adopts a slide block type structure in, when centrifugation is completed, the sealing slide block 10 slides open, so that manual taking is facilitated.
The first embodiment is as follows: the servo motor 42 drives the large synchronous wheel 43 and the synchronous belt 47 to further drive the small synchronous wheel 46 and the centrifugal rotor 48 thereon, the photosensitive position sensor 52 positions the U-shaped clamping groove 49, before the centrifuge runs, the refrigeration compressor in the refrigeration box 502 starts to work first, so that the refrigeration pipe 501 cools the rotor chamber 3, the centrifuge runs after reaching the target temperature, the sealing slide block 10 and the rubber sealing washer 11(A move to the opening B for sealing), meanwhile, the lower electromagnetic valve 8 is closed to enable the centrifuge shell 1 to be in a sealing state, then the vacuum pump starts to work, meanwhile, the centrifugal rotor 48 starts to run at an increased speed, the centrifugal rotor 48 is increased to a set rotating speed when the vacuum degree reaches the standard, the set time is kept, after the set time is reached, the servo motor 42 controls the centrifugal rotor 48 to decelerate to the lower rotating speed, the electromagnetic valve 8 is opened to deflate, after a few seconds, the sealing slide 10 and the rubber sealing gasket (a) are removed from the opening B, and the operation is finished at this step by manual operation;
example two: if the manipulator E (and the manipulator E is a device carried by the centrifuge housing 1 in the prior art, such as a TG16-WS centrifuge) is used to realize automatic operation, as shown in fig. 6, after the slide block completely leaves the part E, the manipulator performs grabbing activity, and grabs out the centrifuge tubes in the 1 and 2 hole sites in the range of E, then the servo motor drives the rotor to move to the position of ii, the 3 and 4 centrifuge tubes are in the range of E, the manipulator performs grabbing activity again, and after the centrifuge tubes in the 3 and 4 hole sites are grabbed away, the servo motor continues to move, so as to circulate until all 12 centrifuge tubes are grabbed out, and the operation condition of the instrument used for placing the centrifuge tubes by matching with the manipulator is also the same as that described in the first embodiment.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Claims (10)
1. A high-speed vacuum positioning centrifuge comprises a centrifuge shell, and is characterized in that: the inner chamber of centrifuge housing transversely installs the division board, and the one end of division board not with centrifuge housing's lateral wall contact, rotor chamber and motor chamber about the division board is separated into with centrifuge housing's inner chamber, and the inner chamber of motor chamber installs centrifugal mechanism, refrigeration mechanism is installed to centrifuge housing's outer wall, the vacuum tube is installed to centrifuge housing's bottom one side, and the outer end of vacuum tube installs the vacuum pump, the intake pipe is installed to centrifuge housing's opposite side, and the outer end of intake pipe installs the solenoid valve, the rectangle notch has been seted up at centrifuge housing's top, and the both sides of rectangle notch install spacing slide rail, and is two sets of horizontal installation has sealed slider between the inner chamber of spacing slide rail, rubber seal ring is installed to sealed slider.
2. A high speed vacuum positioning centrifuge as defined in claim 1 wherein: the centrifugal mechanism comprises a motor support, the motor support is fixed on the side wall of the motor chamber through bolts, a servo motor is installed at the bottom of the motor support, the output shaft end of the servo motor penetrates through the top of the motor support, a large synchronizing wheel is sleeved at the top of the servo motor, a centrifugal support is installed at one side of the motor support and is embedded in the middle of the top of the separation plate, a centrifugal shaft rod is vertically installed at the bottom of the centrifugal support, the top end of the centrifugal shaft rod penetrates through the top of the centrifugal support, a small synchronizing wheel is installed at the bottom end of the centrifugal shaft rod, a synchronous belt is sleeved between the small synchronizing wheel and the large synchronizing wheel, a centrifugal rotor is sleeved at the top end of the centrifugal shaft rod, a U-shaped clamping groove is formed in the side wall of the centrifugal rotor, a centrifugal pipe sleeve is installed in the inner cavity of the U-shaped clamping groove through a pin, and, a photosensitive position sensor is mounted above the centrifugal rotor.
3. A high speed vacuum positioning centrifuge as defined in claim 2 wherein: high-speed wear-resistant bearings are arranged at the joint of the output shaft of the servo motor and the motor support and the joint of the centrifugal shaft lever and the centrifugal support.
4. A high speed vacuum positioning centrifuge as defined in claim 2 wherein: the large synchronizing wheel and the small synchronizing wheel are on the same horizontal plane, and the transmission ratio between the large synchronizing wheel and the small synchronizing wheel is 1: 5.
5. A high speed vacuum positioning centrifuge as defined in claim 1 wherein: the centrifugal pipe sleeve is movably connected with the U-shaped clamping groove through a pin rod, and the centrifugal pipe sleeve can be in a horizontal state under the centrifugal force action of the centrifugal rotor.
6. A high speed vacuum positioning centrifuge as defined in claim 1 wherein: the refrigeration mechanism comprises a refrigeration pipe, the refrigeration pipe is uniformly wound on the outer wall of the centrifuge shell, and a refrigeration box body is arranged between the two ends of the refrigeration pipe.
7. A high speed vacuum positioning centrifuge as defined in claim 6 wherein: and a refrigerating compressor is installed in the inner cavity of the refrigerating box body, and two ends of the refrigerating pipe are respectively connected with the output end of the refrigerating compressor and the tail gas discharge end.
8. A high speed vacuum positioning centrifuge as defined in claim 1 wherein: the sealing slide block can slide between the two groups of limiting slide rails, the rubber sealing gasket can seal a rectangular opening at the top of the centrifuge shell, and a round angle is formed in one side, close to the sealing slide block, of the rubber sealing gasket.
9. A high-speed vacuum positioning centrifugal processing method is characterized in that: the servo motor drives the large synchronizing wheel and the synchronous belt, further drives the small synchronizing wheel and the centrifugal rotor on the small synchronizing wheel, the photosensitive position sensor positions the U-shaped clamping groove, before the centrifugal machine operates, a refrigeration compressor in a refrigeration box starts to operate firstly, a refrigeration pipe cools a rotor chamber, the centrifugal machine operates after the target temperature is reached, a sealing slide block and a rubber sealing washer enable the centrifugal machine to be in a sealing state, then a vacuum pump starts to operate, meanwhile, the centrifugal rotor starts to operate at a rising speed, the centrifugal rotor rises to a set rotating speed when the vacuum degree reaches a standard, the set time is kept, after the set time is reached, the servo motor controls the centrifugal rotor to decelerate, when the rotating speed is reduced to be lower, the electromagnetic valve 8 is opened to release air, and after a few seconds, the sealing slide block and the.
10. The high-speed vacuum positioning centrifugal processing method of claim 9, wherein: treat that the slider leaves E part completely after, the manipulator snatchs the activity, will be in the centrifuge tube in 1 of E scope, 2 hole sites and grab out, later servo motor drives the rotor and moves to the position of II, 3, 4 two centrifuge tubes are in the E scope, and the manipulator snatchs the activity again, grabs away 3, behind the centrifuge tube in 4 hole sites, servo motor continues the motion to this circulation is grabbed out until all 12 centrifuge tubes, and the instrument operation condition that the cooperation manipulator carried out the centrifuge tube and placed also with embodiment one content is the same.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010683756.6A CN111686949A (en) | 2020-07-16 | 2020-07-16 | High-speed vacuum positioning centrifuge |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010683756.6A CN111686949A (en) | 2020-07-16 | 2020-07-16 | High-speed vacuum positioning centrifuge |
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| CN202010683756.6A Pending CN111686949A (en) | 2020-07-16 | 2020-07-16 | High-speed vacuum positioning centrifuge |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117772431A (en) * | 2024-02-26 | 2024-03-29 | 山东二叶制药有限公司 | Grading centrifuge for pharmacy |
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| CN117772431A (en) * | 2024-02-26 | 2024-03-29 | 山东二叶制药有限公司 | Grading centrifuge for pharmacy |
| CN117772431B (en) * | 2024-02-26 | 2024-05-03 | 山东二叶制药有限公司 | Grading centrifuge for pharmacy |
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Application publication date: 20200922 |