CN111974559B - Speed-limiting transmission device for stepless regulation of rotating speed of biological cell centrifuge - Google Patents
Speed-limiting transmission device for stepless regulation of rotating speed of biological cell centrifuge Download PDFInfo
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- CN111974559B CN111974559B CN202010859875.2A CN202010859875A CN111974559B CN 111974559 B CN111974559 B CN 111974559B CN 202010859875 A CN202010859875 A CN 202010859875A CN 111974559 B CN111974559 B CN 111974559B
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- speed
- driving shaft
- limiting
- fixedly connected
- transmission
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 69
- 230000033228 biological regulation Effects 0.000 title claims abstract description 22
- 230000000670 limiting effect Effects 0.000 claims description 30
- 230000000694 effects Effects 0.000 abstract description 7
- 210000004027 cell Anatomy 0.000 description 11
- 238000000034 method Methods 0.000 description 3
- 210000003463 organelle Anatomy 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- 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
-
- 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
-
- 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
- B04B9/10—Control of the drive; Speed regulating
Abstract
The invention relates to the technical field of biological cells, and discloses a speed-limiting transmission device for stepless regulation of the rotating speed of a biological cell centrifuge, which comprises a driving shaft, wherein an electric coil is fixedly connected inside the driving shaft, a rotating shaft is rotatably connected at the axis of the driving shaft, an active rod is movably clamped on the surface of the outer ring of the driving shaft, the central end of the active rod is rotatably connected with a transmission rod, the outer end of the active rod is rotatably connected with a rotating wheel, the surface of the outer ring of the rotating wheel is movably connected with a transmission belt, the lateral lower end of the driving shaft is fixedly connected with a return spring, the lower end of the return spring is fixedly connected with a sleeve block, the bottom end of the sleeve block is fixedly connected with an arc groove, a speed-limiting spring is fixedly connected inside the arc groove, and the bottom end of the speed-limiting spring is fixedly connected with a heavy block. The speed-limiting transmission device for stepless regulation of the rotating speed of the biological cell centrifuge achieves the effect of constant rotating speed of the centrifuge by matching the return spring, the sleeve block, the arc groove, the speed-limiting spring and the heavy block.
Description
Technical Field
The invention relates to the technical field of biological cells, in particular to a speed-limiting transmission device for stepless regulation of the rotating speed of a biological cell centrifuge.
Background
The present biological cell separation step basically employs a centrifuge apparatus, which is commonly used to separate a solid phase and a liquid phase in a colloidal solution. In the use process of an actual centrifuge, the requirement on the rotating speed of the centrifuge is extremely strict, different organelles can be separated at different rotating speeds, the rotating speed of the centrifuge is changed due to external factors such as unstable voltage and vibration of bearing equipment, if the rotating speed is too high, the organelles needing to be left can be broken, and if the rotating speed is too low, the organelles can be separated incompletely. In addition, because the rotating speed adjusting structure of part of equipment adopts hierarchical regulation, the rotating speed adjusting structure is not used for the research purpose with higher precision requirement.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the speed-limiting transmission device for stepless regulation of the rotating speed of the biological cell centrifuge, which has the advantages of uniform and stable rotating speed of the centrifuge, stepless regulation of the rotating speed and the like, and solves the problems of non-uniform and unstable rotating speed of the centrifuge and step regulation of the rotating speed.
(II) technical scheme
In order to realize the purposes of uniform and stable rotating speed and stepless adjusting of the rotating speed of the centrifugal machine, the invention provides the following technical scheme: a speed-limiting transmission device for stepless regulation of the rotating speed of a biological cell centrifuge comprises a driving shaft, wherein an electric coil is fixedly connected inside the driving shaft, a first contact is fixedly connected to the surface of the outer ring of the electric coil, a rotating shaft is rotatably connected to the axis of the driving shaft, a second contact is fixedly connected to the surface of the outer ring of the rotating shaft, a groove is fixedly connected to the surface of the outer ring of the driving shaft, a limiting spring is fixedly connected inside the groove, a limiting block is fixedly connected to the surface of the outer ring of the driving shaft, a driving rod is movably clamped on the surface of the outer ring of the driving shaft, a clamping block is fixedly connected to the bottom end of the driving rod, a transmission rod is rotatably connected to the central end of the driving rod, a rotating wheel is rotatably connected to the outer end of the driving rod, a transmission belt is movably connected to the surface of the outer ring of the rotating wheel, a transmission hub is movably connected to the inner ring of the transmission belt, and a reset spring is fixedly connected to the lower end of the side of the driving shaft, the lower end of the reset spring is fixedly connected with a sleeve block, the bottom end of the sleeve block is fixedly connected with an arc groove, the inner portion of the arc groove is fixedly connected with a speed-limiting spring, and the bottom end of the speed-limiting spring is fixedly connected with a heavy block.
Preferably, the second contact and the inner ring surface of the electric coil are mutually attached, and the first contact and the second contact are mutually electrically connected and accessed to the input of an external power supply.
Preferably, the driving rods are mutually and rotatably connected through the transmission rod, and meanwhile, the limiting spring is rotatably connected with the center end of the transmission rod.
Preferably, the driving rod is clamped in a groove of the limiting block.
Preferably, the rotating wheel is composed of six rotating rods which are uniformly distributed and rotatably connected between the two side discs.
Preferably, the driving shaft is connected with the output end of the external motor, and the shaft center of the transmission hub is connected with the rotor of the centrifuge.
Preferably, the groove, the limiting spring, the limiting block, the driving rod, the clamping block, the transmission rod and the rotating wheel are respectively provided with six grooves, and the driving shaft is uniformly distributed by taking the driving shaft as a reference circle center.
Preferably, the structure design of the transmission hub is identical to that of the driving shaft, and the transmission hub has all structures except the electric coil, such as a groove, a driving rod and the like.
(III) advantageous effects
Compared with the prior art, the invention provides a speed-limiting transmission device for stepless regulation of the rotating speed of a biological cell centrifuge, which has the following beneficial effects:
1. the speed-limiting transmission device for stepless regulation of the rotating speed of the biological cell centrifuge is used by matching the reset spring, the sleeve block, the arc groove, the speed-limiting spring and the heavy block, so that the effect of constant rotating speed of the centrifuge is achieved, the rotating speed change caused by external factors such as unstable voltage or vibration of bearing equipment and the like can not be received, and the running stability of the equipment and the efficiency of cell separation are improved.
2. The speed-limiting transmission device for stepless regulation of the rotating speed of the biological cell centrifuge achieves the effect of the rotating speed of the stepless speed-changing centrifuge and embodies the application range of equipment in the actual use process by matching the driving shaft, the electric coil, the contact I, the contact II, the rotating shaft, the groove, the limiting spring, the driving rod, the transmission rod, the rotating wheel, the reset spring, the transmission hub and the transmission belt.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic diagram of an electrical coil structure according to the present invention;
FIG. 3 is a front view of the driving shaft structure of the present invention;
FIG. 4 is a schematic diagram of the rotation speed adjustment state of the driving shaft structure of the present invention.
In the figure: 1. a drive shaft; 2. an electric coil; 3. a first contact; 4. a rotating shaft; 5. a second contact; 6. a groove; 7. a limiting spring; 8. a limiting block; 9. a driving lever; 10. a clamping block; 11. a transmission rod; 12. a rotating wheel; 13. a transmission belt; 14. a drive hub; 15. a return spring; 16. sleeving blocks; 17. an arc groove; 18. a speed limiting spring; 19. and a weight.
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. 1-4, a speed-limiting transmission device for stepless regulation of the rotation speed of a biological cell centrifuge comprises a driving shaft 1, the driving shaft 1 is connected to the output end of an external motor, and the axis of a transmission hub 14 is connected to the rotor of the centrifuge.
The inside fixedly connected with electric coil 2 of driving shaft 1, the outer lane fixed surface of electric coil 2 is connected with contact 3, and the axle center department swivelling joint of driving shaft 1 has pivot 4, and the outer lane fixed surface of pivot 4 is connected with contact two 5, and contact two 5 hug closely each other with the inner circle surface of electric coil 2, and mutual electric connection inserts the external power input between contact 3 and the contact two 5. The first contact 3 and the second contact 5 conduct the electric coil 2 to generate an induction magnetic field inside and generate attraction force on the limiting block 8, and the number of turns of the coil conducted by the current determines the intensity of the generated magnetic field.
The outer lane fixed surface of driving shaft 1 is connected with recess 6, and the inside fixedly connected with spacing spring 7 of recess 6, the outer lane fixed surface of driving shaft 1 is connected with stopper 8, and the joint of driving lever 9 is in the inslot of stopper 8. The limiting block 8 can limit the driving rod 9 to move freely only in the radial direction of the driving shaft 1.
The surface of the outer ring of the driving shaft 1 is movably clamped with driving rods 9, the driving rods 9 are mutually and rotatably connected through transmission rods 11, and meanwhile, the limiting springs 7 are rotatably connected with the central ends of the transmission rods 11. The transmission rods 11 are mutually and rotationally connected and are also rotationally connected at the central end of the driving rod 9, and the position relation among the rotating wheel 12, the transmission rods 11 and the driving shaft 1 is determined under the limiting action of the limiting spring 7.
The bottom end of the driving rod 9 is fixedly connected with a clamping block 10, the center end of the driving rod 9 is rotatably connected with a transmission rod 11, and six grooves 6, limiting springs 7, limiting blocks 8, the driving rod 9, the clamping block 10, the transmission rod 11 and the rotating wheel 12 are respectively arranged and are uniformly distributed by taking the driving shaft 1 as a reference circle center. The plurality of wheels 12 and the transmission structure connected therebetween will improve the transmission capacity of the whole structure.
The outer end of the driving rod 9 is rotatably connected with a rotating wheel 12, and the rotating wheel 12 is composed of six rotating rods which are uniformly distributed and rotatably connected between two side discs. The surface of the outer ring of the rotating wheel 12 is movably connected with a transmission belt 13, the inner ring of the transmission belt 13 is movably connected with a transmission hub 14, the structural design of the transmission hub 14 is completely the same as that of the driving shaft 1, and the transmission hub has all structures except the electric coil 2, such as a groove 6, a driving rod 9 and the like. The driving hub 14 moves in the same manner as the driving shaft 1, has the function of automatically adjusting the size of the driving radius, and is driven by the driving shaft 1 through the driving belt 13 to rotate.
The lower end of the side of the driving shaft 1 is fixedly connected with a return spring 15, the lower end of the return spring 15 is fixedly connected with a sleeve block 16, the bottom end of the sleeve block 16 is fixedly connected with an arc groove 17, the inside of the arc groove 17 is fixedly connected with a speed limiting spring 18, and the bottom end of the speed limiting spring 18 is fixedly connected with a heavy block 19.
The working principle is as follows: the rotary energy source of the centrifuge is provided by an external motor, and is connected with a driving shaft 1, a driving belt 13 and a driving hub 14 for driving rotation. The electric coil 2 generates an induction magnetic field when being connected with an external power supply, and has an attraction effect on the limit block 8, the limit block 8 is driven by the attraction effect to drive the driving rod 9 to move towards the axis direction of the driving shaft 1, wherein the limit block 8 plays a role in limiting the maximum movement range of the driving rod 9, and simultaneously compresses the limit spring 7, and the groove 6 can buffer the structure conflict condition of the connection point in the movement process of the driving rod 11. Under the condition that the rotation angular velocity is not changed, the transmission radius of the driving shaft 1 is reduced, the transmission linear velocity is reduced, and meanwhile, the limiting spring 7 structure of the transmission hub 14 is extended to ensure that the transmission belt 13 is always straight, so that enough friction force is ensured to be possessed for transmission. So far, the rotation speed of the centrifugal machine is increased.
The rotating shaft 4 is rotated, the position of the second contact 5 is adjusted, the number of the current turns of the electric coil 2 in the passage is changed, the smaller the number of the current turns is, the smaller the induced magnetic field is, the smaller the attraction force on the limiting block 8 is, and on the contrary, the greater the attraction force on the limiting block 8 is, so that the length of the limiting spring 7 of the driving shaft 1 is changed, and the transmission radius of the driving shaft 1 and the rotating speed of the transmission hub 14 are changed.
During the rotation of the driving shaft 1, the weight 19 is under the action of centrifugal force to pull the sleeve block 16 downwards through the speed limiting spring 18, and simultaneously, the return spring 15 is stretched until the whole structure reaches a stable balanced state. If the rotating speed is increased due to external factors, the weight 19 moves downwards while moving away from the axis of the driving shaft 1 under the action of a larger centrifugal force, and simultaneously drives the sleeve block 16 to move downwards, and further stretches the return spring 15, the sleeve block 16 is rotationally connected with the rotating wheel 12, and the rotating wheel 12 is driven to move upwards close to the axis of the driving shaft 1 while moving downwards, so that the effect of reducing the transmission radius of the driving shaft 1 is achieved, the influence of the suddenly increased rotating speed on the transmission speed is avoided until power is recovered, the weight 19 is reset under the traction of the speed limiting spring 18, the return spring 15 is also reset, and the transmission radius is recovered. Conversely, the weight 19 moves upwards and the transmission radius increases, in the same principle.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a speed limit transmission of electrodeless regulation of biological cell centrifuge rotational speed, includes driving shaft (1), its characterized in that: the inner fixed connection of the driving shaft (1) is provided with an electric coil (2), the outer ring surface of the electric coil (2) is fixedly connected with a contact I (3), the axis of the driving shaft (1) is rotatably connected with a rotating shaft (4), the outer ring surface of the rotating shaft (4) is fixedly connected with a contact II (5), the outer ring surface of the driving shaft (1) is fixedly connected with a groove (6), the inner fixed connection of the groove (6) is provided with a limit spring (7), the outer ring surface of the driving shaft (1) is fixedly connected with a limit block (8), the outer ring surface of the driving shaft (1) is movably clamped with a driving rod (9), the bottom of the driving rod (9) is fixedly connected with a clamping block (10), the center end of the driving rod (9) is rotatably connected with a transmission rod (11), and the outer end of the driving rod (9) is rotatably connected with a rotating wheel (12), the surface swing joint of the outer lane of runner (12) has drive belt (13), the inner circle swing joint of drive belt (13) has transmission hub (14), the side lower extreme fixedly connected with reset spring (15) of driving shaft (1), the lower extreme fixedly connected with nest block (16) of reset spring (15), the bottom fixed connection arc groove (17) of nest block (16), the inside fixedly connected with speed limit spring (18) of arc groove (17), the bottom fixed connection pouring weight (19) of speed limit spring (18).
2. The speed-limiting transmission device for stepless regulation of the rotating speed of the biological cell centrifuge according to claim 1 is characterized in that: the surface of the inner ring of the contact II (5) and the surface of the inner ring of the electric coil (2) are mutually attached, and the contact I (3) and the contact II (5) are mutually electrically connected and connected with an external power supply for inputting.
3. The speed-limiting transmission device for stepless regulation of the rotating speed of the biological cell centrifuge according to claim 1 is characterized in that: the driving rods (9) are mutually and rotatably connected through the transmission rods (11), and meanwhile, the limiting springs (7) are rotatably connected with the center ends of the transmission rods (11).
4. The speed-limiting transmission device for stepless regulation of the rotating speed of the biological cell centrifuge according to claim 1 is characterized in that: the driving rod (9) is clamped in the groove of the limiting block (8).
5. The speed-limiting transmission device for stepless regulation of the rotating speed of the biological cell centrifuge according to claim 1 is characterized in that: the rotating wheel (12) is composed of six rotating rods which are uniformly distributed and are rotatably connected between two side discs.
6. The speed-limiting transmission device for stepless regulation of the rotating speed of the biological cell centrifuge according to claim 1 is characterized in that: the structure design of the transmission hub (14) is completely the same as that of the driving shaft (1), and the transmission hub has all structures except the electric coil (2), such as a groove (6), a driving rod (9) and the like.
7. The speed-limiting transmission device for stepless regulation of the rotating speed of the biological cell centrifuge according to claim 1 is characterized in that: the driving shaft (1) is connected to the output end of an external motor, and the axis of the transmission hub (14) is connected to the rotor of the centrifuge.
8. The speed-limiting transmission device for stepless regulation of the rotating speed of the biological cell centrifuge according to claim 1 is characterized in that: the groove (6), the limiting spring (7), the limiting block (8), the driving rod (9), the clamping block (10), the transmission rod (11) and the rotating wheel (12) are respectively provided with six, and the driving shaft (1) is uniformly distributed as a reference circle center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010859875.2A CN111974559B (en) | 2020-08-24 | 2020-08-24 | Speed-limiting transmission device for stepless regulation of rotating speed of biological cell centrifuge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010859875.2A CN111974559B (en) | 2020-08-24 | 2020-08-24 | Speed-limiting transmission device for stepless regulation of rotating speed of biological cell centrifuge |
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| Publication Number | Publication Date |
|---|---|
| CN111974559A CN111974559A (en) | 2020-11-24 |
| CN111974559B true CN111974559B (en) | 2021-07-23 |
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| CN202010859875.2A Active CN111974559B (en) | 2020-08-24 | 2020-08-24 | Speed-limiting transmission device for stepless regulation of rotating speed of biological cell centrifuge |
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Effective date of registration: 20210623 Address after: 211806 no.22-4, Dangui Road, Pukou District, Nanjing City, Jiangsu Province Applicant after: Nanjing Yuyang High Tech Co.,Ltd. Address before: Room a-b103-59, 198 Qidi Road, Xiaoshan Economic and Technological Development Zone, Xiaoshan District, Hangzhou, Zhejiang 311200 Applicant before: Hangzhou Leyao Biotechnology Co.,Ltd. |
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Denomination of invention: A Speed Limiting Transmission Device for Infinite Speed Regulation of Biological Cell Centrifuge Effective date of registration: 20230327 Granted publication date: 20210723 Pledgee: China Construction Bank Corporation Nanjing Gulou sub branch Pledgor: Nanjing Yuyang High Tech Co.,Ltd. Registration number: Y2023980036330 |
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Granted publication date: 20210723 Pledgee: China Construction Bank Corporation Nanjing Gulou sub branch Pledgor: Nanjing Yuyang High Tech Co.,Ltd. Registration number: Y2023980036330 |