Centrifugal device with weight adjusting function

Abstract

A centrifugal device with weight adjustment comprises a mounting frame, a driving motor, a centrifugal unit and a computing control module. The centrifugal unit comprises an adjusting frame, a sample placing unit, a load adjusting unit and a weight detecting device. The calculation control module is connected with the weight detection device, when a to-be-centrifuged sample is placed on the sample placing unit, the weight detection device transmits weight information to the calculation control module, and the calculation control module calculates the distribution number and displacement of the load adjusting unit on the adjusting frame required by balance. According to the centrifugal device with the weight adjusting function, weight balance and centrifugal force consistency on the centrifugal units are achieved, the stability of samples in the centrifugal process is improved, and the quality of the centrifuged samples is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of centrifugal equipment, in particular to a centrifugal device with weight adjustment. Background Art

[0002] A centrifuge is a machine that uses centrifugal force to separate liquids from solid particles or components in a mixture of liquids and liquids. Centrifuges are mainly used to separate solid particles from liquids in suspensions, or to separate two immiscible liquids of different densities in emulsions (e.g., separating cream from milk); they can also be used to remove liquids from wet solids, such as using a washing machine to spin dry wet clothes; special ultra-speed tubular separators can also separate gas mixtures of different densities; some sedimentation centrifuges can also classify solid particles by density or size, taking advantage of the fact that solid particles of different densities or sizes have different sedimentation speeds in liquids.

[0003] The importance of centrifuge balance cannot be ignored. First of all, the balance problem is directly related to the operating stability of the centrifuge. If the mass distribution of the rotating parts of the centrifuge is uneven, it will cause problems such as vibration or noise during operation. This unbalanced state not only affects the normal operation of the centrifuge, but may also interfere with the surrounding environment and even pose a safety threat to the operator. Secondly, the balance problem has a significant impact on the service life and performance of the centrifuge. The unbalanced state will cause the bearings and motors of the centrifuge to bear additional loads, accelerate wear, and thus shorten the service life of the equipment. At the same time, imbalance may also reduce the separation effect of the centrifuge and affect the centrifugal effect.

[0004] For example, a Chinese patent for a desktop multi-station centrifuge, application number CN202222689845.9, includes a mounting base, a servo motor is arranged in the center of the top surface of the mounting base, a control shaft is arranged at the output end of the servo motor, a connecting frame is arranged at the top of the control shaft, a centrifugal sleeve is arranged on the outside of the connecting frame, and multiple centrifugal sleeves are arranged on the connecting frame to achieve the centrifugation of multiple samples. However, during the centrifugation process, the quality of the samples on each centrifugal sleeve is different. During the use of the centrifuge, the centrifugal effect on the samples on each centrifugal sleeve is different, and the centrifugal quality of the samples cannot be guaranteed.

[0005] When centrifuging multiple samples, centrifuge tubes of different numbers and weights make it more difficult to balance the centrifuge, especially without human intervention. The utility model detects the weight of the centrifugal objects, calculates the conditional load balance and automatically moves the load weight to achieve a centrifugal force balance state, thereby avoiding possible accidents caused by unbalanced centrifugal force. Utility Model Content

[0006] In view of this, the utility model provides a centrifugal device with weight adjustment that can improve sample quality to meet industrial needs.

[0007] A centrifugal device with weight adjustment includes a mounting frame, a driving motor arranged on the mounting frame, at least one centrifugal unit arranged on the driving motor, and a computing control module connected to the centrifugal unit, each of the centrifugal units includes an adjustment frame arranged on the output end of the driving motor, two sample placement units respectively arranged at both ends of the adjustment frame and used to place samples to be centrifuged, at least one load adjustment unit arranged on the adjustment frame, and a weight detection device for detecting the weight of the sample to be centrifuged set on the sample placement unit, the computing control module is connected to the weight detection device, when the sample to be centrifuged is placed on the sample placement unit, the weight detection device transmits the weight information to the computing control module, and the computing control module calculates the distribution number and displacement of the load adjustment unit on the adjustment frame required for balance.

[0008] Furthermore, the load adjustment unit includes at least one receiving groove arranged on the adjustment frame, at least one load adjustment weight part accommodated in the receiving groove, and at least one limiting protrusion arranged in the receiving groove, each of the limiting protrusions is arranged at the center of the receiving groove, and the two end ends of each of the receiving grooves are respectively facing the two sample placement units.

[0009] Furthermore, the mounting frame is used to support the driving motor, wherein the mounting frame includes a first mounting frame, a second mounting frame arranged on the first mounting frame, and a plurality of shock absorbers arranged between the first mounting frame and the second mounting frame.

[0010] Furthermore, the mounting frame is used to support the driving motor, wherein the mounting frame includes a first mounting frame, a second mounting frame arranged on the first mounting frame, and a plurality of shock absorbers arranged between the first mounting frame and the second mounting frame.

[0011] Furthermore, the weight detection device is any one of a pressure load sensor, a pressure balance sensor and a mechanical balance sensor.

[0012] Furthermore, the adjustment frame includes at least one adjustment frame body and at least one adjustment frame connecting member disposed at both ends of the adjustment frame body.

[0013] Furthermore, when the sample placement unit is installed on the adjustment frame, the placement chamber connecting piece and the adjustment frame connecting piece correspond to and are connected to each other.

[0014] Furthermore, each of the load-adjusting weight parts includes a plurality of balancing weights accommodated in the accommodating grooves, and there are a plurality of the accommodating grooves and the load-adjusting weight parts. The balancing weights in the plurality of load-adjusting weight parts are of different sizes, and the balancing weights of the same size constitute a load-adjusting weight part, and each load-adjusting weight part is individually accommodated in one of the accommodating grooves.

[0015] Furthermore, the centrifugal unit also includes a distribution and movement module for adjusting the load adjustment unit. When the calculation and control module calculates the distribution quantity and displacement of the load adjustment unit in the receiving slot required for balance, the distribution and movement module drives the load adjustment unit to move in the receiving slot and adjusts the load balance to adjust the weight imbalance state of the sample placement unit.

[0016] Compared with the prior art, the centrifugal device with weight adjustment provided by the utility model realizes the weight adjustment of the two ends of the adjustment frame by setting a weight detection device on the sample placement unit and adjusting the load adjustment unit in the centrifugal unit. The load adjustment unit includes at least one receiving groove arranged on the adjustment frame, and a plurality of load adjustment weight parts accommodated in the receiving groove, and at least one limiting protrusion arranged in the receiving groove. During use, the weight detection device detects the weight of the two sample placement units respectively, and determines the sample placement unit with light weight. After the weight detection device completes the detection of the weight of the sample placement unit, the load adjustment weight part is adjusted manually or by a manipulator, and the required load adjustment weight part is moved to one end of the receiving groove close to the light sample placement unit according to the demand, so as to achieve the same quality of the ends of the two ends of the adjustment frame. It can be seen from this that the centrifugal device with weight adjustment realizes the weight consistency on the centrifugal unit, improves the stability of the sample during the centrifugation process, and ensures the quality of the sample after centrifugation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a centrifugal device with weight adjustment provided by the utility model.

[0018] Figure 2 for Figure 1 A schematic diagram of the top view of a centrifugal device with weight adjustment.

[0019] Figure 3 for Figure 1 Schematic diagram of the structure of the centrifugal device with weight adjustment without the protective cover.

[0020] Figure 4 for Figure 3 A schematic diagram of another embodiment of a sample placement unit in a centrifugal device with weight adjustment DETAILED DESCRIPTION

[0021] The following is a further detailed description of the specific embodiments of the present invention. It should be understood that the description of the embodiments of the present invention herein is not intended to limit the protection scope of the present invention.

[0022] like Figures 1 to 4 As shown, it is a schematic diagram of the structure of the centrifugal device with weight adjustment provided by the utility model. The centrifugal device with weight adjustment includes a mounting frame 10, a driving motor 20 arranged on the mounting frame 10, at least one centrifugal unit 30 arranged on the driving motor 20, a computing control module (not shown) connected to the centrifugal unit 30, and a protective cover 40 arranged on the outside of the centrifugal unit 30. The centrifugal device with weight adjustment also includes some other functional modules, such as assembly components, electrical connection components, etc., which should be technologies well known to those skilled in the art and will not be described in detail one by one here.

[0023] The mounting frame 10 is used to support the driving motor 20, wherein the mounting frame 10 includes a first mounting frame 11, a second mounting frame 12 disposed on the first mounting frame 11, and a plurality of shock absorbers 13 disposed between the first mounting frame 11 and the second mounting frame 12. The first mounting frame 11 is used to be fixed to other equipment, the second mounting frame 12 is used to install the driving motor 20, and the shock absorber 13 is used to suppress the shock and impact when the spring rebounds after absorbing the shock. The shock absorber 13 is a prior art and will not be described in detail here.

[0024] The output end of the drive motor 20 is connected to the centrifugal unit 30, and the drive motor 20 is a prior art. The drive motor 20 is arranged on the second mounting frame 12. When the drive motor 20 is working, the shock absorber 13 absorbs the force on the second mounting frame 12, reduces the vibration of the drive motor 20, and thus reduces the vibration of the centrifugal unit 30, so as to improve the stability of the centrifugal unit 30 during the centrifugation process.

[0025] The centrifugal unit 30 includes an adjustment frame 31 arranged on the output end of the driving motor 20, two sample placement units 32 respectively arranged at both ends of the adjustment frame and used to place the samples to be centrifuged, at least one load adjustment unit 33 arranged on the adjustment frame 31, a weight detection device (not shown) for detecting the weight of the centrifugal object set on the sample placement unit 32, and a distribution movement module (not shown) for adjusting the load adjustment unit 33.

[0026] Each of the adjustment racks 31 includes an adjustment rack body 311 and two adjustment rack connectors 312 respectively disposed at the ends of the adjustment rack body 311. The adjustment rack 31 is connected to the output end of the drive motor 20, and the adjustment rack 31 connects the sample placement unit 32 and the drive motor 20 together. The adjustment rack connector 312 is used to connect the sample placement unit 32, and the adjustment rack connector 312 will be described in detail in conjunction with the sample placement unit 32.

[0027] The sample placement unit 32 includes a sample placement chamber 321, two placement chamber connectors 322 symmetrically arranged on both sides of the sample placement chamber 321, and a hanging basket adapter 323 arranged in the sample placement chamber 321. A weight detection device (not shown) is arranged on the sample placement unit 32, and the weight detection device is used to detect the weight on the sample placement unit 32. The weight detection device is a prior art.

[0028] The sample placement chamber 321 is used to accommodate the hanging basket adapter 323 and the well plate for installing the sample. When the sample placement unit 32 is installed on the adjustment frame 31, the placement chamber connector 322 and the adjustment frame connector 312 correspond to each other and are connected to each other. The connection structure between the placement chamber connector 322 and the adjustment frame connector 312 is the existing technology and will not be repeated here.

[0029] The basket adapter 323 is used to accommodate well plates of different specifications, and different well plates are matched through the basket adapter 323. The basket adapter 323 has the same shape as the sample placement chamber 321, and the outer contours of the basket adapter 323 and the sample placement chamber 321 are either rectangular or circular. Figure 3 As shown, the outer contours of the hanging basket adapter 323 and the sample placement chamber 321 are rectangular. Figure 4 As shown, the outer contours of the hanging basket adapter 323 and the sample placement chamber 321 are circular, thereby meeting the separation requirements of different samples of the sample placement unit 32 .

[0030] The load adjustment unit 33 includes at least one receiving groove 331 disposed on the adjustment frame 31 , a plurality of load adjustment weights 332 accommodated in the receiving groove 331 , and at least one limiting protrusion 333 disposed on the receiving groove 331 .

[0031] The two ends of each of the accommodating grooves 331 are respectively facing the two sample placement units 32, that is, during use, the multiple load-adjusting weight parts 332 can be respectively moved to the two ends of the accommodating groove 331 to adjust the weight of the two ends of the two sample placement units 32 set on the adjustment frame 31, so that the weight of the two ends of the two sample placement units 32 that accommodate the adjustment frame 31 is consistent, so as to ensure the centrifugal quality of the sample when the sample is centrifuged through the centrifugal device.

[0032] Each of the load-adjusting weight parts 332 includes a plurality of balancing weights 3321 accommodated in the accommodating grooves 331 . During use, the required load-adjusting weight part 332 is selected, and the balancing weights 3321 in the adjusting weight part 332 are adjusted to achieve weight adjustment of the sample placement unit 32 .

[0033] The limiting protrusion 333 is arranged at the center of the receiving groove 331, dividing the receiving groove 331 into two receiving chambers, and the balancing weight 3321 in each load-adjusting weight part 332 is respectively received in the two receiving chambers of the receiving groove 33. During use, the distribution quantity of the balancing weight 3321 in the two receiving chambers of the receiving groove 33 is adjusted, and the weight adjustment of the sample placement unit 32 is achieved by adjusting the load-adjusting unit 33.

[0034] In this embodiment, there are multiple accommodating grooves 331 and load-adjusting weight parts 332, and the balancing weights 3321 in the multiple load-adjusting weight parts 332 are of different sizes. The balancing weights of the same size constitute a load-adjusting weight part, and each load-adjusting weight part is individually accommodated in one of the accommodating grooves. When a weight detection device (not shown) measures the weights of the two sample placement units 32, and the weights of the two sample placement units 32 are different, the required load-adjusting weight part 332 is selected according to demand, and the balancing weight 3321 in the load-adjusting weight part 332 is driven to move to the accommodating groove 331 toward the end of the sample placement unit 32 with light weight, so as to achieve consistent mass at both ends of the adjustment frame 31.

[0035] The weight detection device is used to detect the weight of the sample to be centrifuged on the sample placement unit 32. The weight detection device is any one of a pressure load sensor, a pressure balance sensor and a mechanical balance sensor. The weight detection device transmits the weight data of the sample to be centrifuged in the two sample placement units 32 to the calculation control module, and the calculation control module calculates the distribution quantity and displacement of the load adjustment unit 33 in the containing groove 331. The weight detection device is a prior art and will not be described in detail here.

[0036] The calculation control module is interconnected with the weight detection device. The calculation control module (not shown) is used to process the weight data transmitted by the weight detection device. The connection structure between the calculation control module and the weight detection device is a prior art and will not be described in detail here. When the sample to be centrifuged is placed on the sample placement unit, the weight detection device (not shown) transmits the weight information to the calculation control module, and the calculation control module calculates the distribution quantity and displacement of the load adjustment unit 33 in the receiving tank required for balancing. The calculation control module is a prior art and will not be described in detail here.

[0037] The distribution and movement module (not shown) is a manipulator, which is an automated device that imitates the movements of human hands. It is a mechanical device that can perform functions similar to those of human hands. The distribution and movement module is a prior art. The calculation control module and the distribution and movement module are interconnected. When the calculation control module calculates the distribution quantity and displacement of the load adjustment unit 33 required for balance in the receiving groove 331, the calculation control module transmits a signal to the distribution and movement module, and the distribution and movement module drives the load adjustment unit 33 to move in the receiving groove 331 and adjusts the load balance to adjust the weight imbalance state of the sample placement unit 32. The connection structure between the calculation control module and the distribution and movement module is a prior art and will not be repeated here.

[0038] The protective cover 40 is used to cover the outer side of the centrifugal unit 30 to protect the centrifugal unit 30. The protective cover 40 is a prior art and will not be described in detail herein.

[0039] During use, the weight detection device detects the weight of the two sample placement units 32 respectively, and determines the light sample placement unit 32. After the weight detection device is completed, when the calculation control module calculates the distribution quantity and displacement of the load adjustment unit 33 required for balance in the receiving groove 331, the load adjustment unit 33 is adjusted manually or by the distribution and movement module, and the required load adjustment weight part 332 is moved to the end of the receiving groove 331 close to the light sample placement unit 32 according to the demand, so as to achieve the same mass of the ends of the adjustment frame 31, so that the centrifugal unit 30 rotates stably. When the centrifugal device with weight adjustment drives the centrifuge, the load adjustment weight part 332 is stably accommodated at both ends of the receiving groove 331 under the action of centrifugal force.

[0040] Compared with the prior art, the centrifugal device with weight adjustment provided by the utility model is provided with a weight detection device (not shown) on the sample placement unit 32, and the load adjustment unit 33 in the centrifugal unit 30 is adjusted to adjust the weight of the two ends of the adjustment frame 31. The load adjustment unit 33 includes at least one receiving groove 331 arranged on the adjustment frame 31, and a plurality of load adjustment weight parts 332 accommodated in the receiving groove 331, and at least one limiting protrusion 333 arranged in the receiving groove 331. During use, the weight detection device detects the weight of the two sample placement units 32 respectively, and determines the sample placement unit 32 with light weight. After the weight detection device completes the detection of the weight of the sample placement unit 32, the load adjustment weight part 332 is adjusted manually or by a manipulator, and the required load adjustment weight part 332 is moved to the end of the receiving groove 331 close to the sample placement unit 32 with light weight according to the demand, so as to achieve the same mass of the ends of the adjustment frame 31. It can be seen from this that the centrifugal device with weight adjustment achieves consistent weight on the centrifugal unit, improves the stability of the sample during the centrifugation process, and ensures the quality of the sample after centrifugation.

[0041] The above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modification, equivalent substitution or improvement within the spirit of the present invention are included in the scope of the claims of the present invention.

Claims

1. A centrifugal device with weight adjustment, characterized in that: The centrifugal device with weight adjustment includes a mounting frame, a driving motor arranged on the mounting frame, at least one centrifugal unit arranged on the driving motor, and a computing control module connected to the centrifugal unit. Each of the centrifugal units includes an adjustment frame arranged on the output end of the driving motor, two sample placement units respectively arranged at both ends of the adjustment frame and used to place samples to be centrifuged, at least one load adjustment unit arranged on the adjustment frame, and a weight detection device for detecting the weight of the sample to be centrifuged set on the sample placement unit. The computing control module is connected to the weight detection device. When the sample to be centrifuged is placed on the sample placement unit, the weight detection device transmits the weight information to the computing control module, and the computing control module calculates the distribution quantity and displacement of the load adjustment unit on the adjustment frame required for balance.

2. The centrifugal device with weight adjustment according to claim 1, characterized in that: The load adjustment unit includes at least one receiving groove arranged on the adjustment frame, at least one load adjustment weight part accommodated in the receiving groove, and at least one limiting protrusion arranged in the receiving groove, each of the limiting protrusions is arranged at the center of the receiving groove, and the two end ends of each of the receiving grooves are respectively facing the two sample placement units.

3. The centrifugal device with weight adjustment according to claim 1, characterized in that: The mounting frame is used to support the driving motor, wherein the mounting frame includes a first mounting frame, a second mounting frame arranged on the first mounting frame, and a plurality of shock absorbers arranged between the first mounting frame and the second mounting frame.

4. The centrifugal device with weight adjustment according to claim 1, characterized in that: The sample placement unit comprises a sample placement chamber, two placement chamber connectors symmetrically arranged on both sides of the sample placement chamber, and a hanging basket adapter arranged in the sample placement chamber.

5. The centrifugal device with weight adjustment according to claim 1, characterized in that: The weight detection device is any one of a pressure load sensor, a pressure balance sensor and a mechanical balance sensor.

6. The centrifugal device with weight adjustment according to claim 4, characterized in that: The adjustment frame comprises at least one adjustment frame body and at least one adjustment frame connecting member arranged at two end ends of the adjustment frame body.

7. The centrifugal device with weight adjustment according to claim 6, characterized in that: When the sample placement unit is installed on the adjustment frame, the placement chamber connecting piece and the adjustment frame connecting piece correspond to and are connected to each other.

8. The centrifugal device with weight adjustment according to claim 2, characterized in that: Each of the load-adjusting weight parts includes a plurality of balancing weights accommodated in the accommodating grooves. There are a plurality of accommodating grooves and a plurality of load-adjusting weight parts. The balancing weights in the plurality of load-adjusting weight parts are of different sizes. The balancing weights of the same size constitute a load-adjusting weight part. Each load-adjusting weight part is individually accommodated in a accommodating groove.

9. The centrifugal device with weight adjustment according to claim 2, characterized in that: The centrifugal unit also includes a distribution and movement module for adjusting the load adjustment unit. When the calculation control module calculates the distribution quantity and displacement of the load adjustment unit required for balance in the receiving slot, the distribution and movement module drives the load adjustment unit to move in the receiving slot and adjusts the load balance to adjust the weight imbalance state of the sample placement unit.

Images