A centrifuge with automatic positioning

Abstract

This invention discloses an automatically positioning centrifuge, comprising: a centrifuge chamber containing a centrifugal motor, the output end of which is fixedly connected to a centrifugal spindle; a drive motor and a control motor with a shaft-locking function also located inside the centrifuge chamber; and a centrifugal rotor, positioned at the top of the centrifugal spindle for holding centrifuge tubes. This invention can automatically limit the position of the centrifugal spindle when the centrifuge lid is opened, providing emergency braking for the rotating rotor to handle unexpected situations. It can also maintain the spindle's position during rotor replacement, reducing the difficulty of the replacement process. Furthermore, after the centrifuge lid is opened, the invention allows a control component to move to a position aligned with the centrifugal rotor spindle, and through the cooperation of the control motor and a calibration component, the rotor can be precisely moved to a position convenient for manual or robotic sample handling, thereby reducing the difficulty of manual sample handling and providing a foundation for automated centrifuge operation.

Description

Technical Field

[0001] This invention relates to the field of centrifuge technology, and more particularly to a centrifuge with automatic positioning capability. Background Technology

[0002] Currently, both laboratory and medical centrifuges use single-phase asynchronous motors to drive the rotor for high-speed centrifugation. However, they cannot accurately position themselves after rotation stops. Yet, practical centrifugation designs require centrifuges to both rotate at high speeds and accurately position themselves after stopping. This is especially true in the in-vitro diagnostics (IVD) and other medical device industries, where sample pretreatment typically involves centrifugation, which is usually done manually. Specifically, samples are placed in the centrifuge, centrifuged, and then manually removed and transferred to IVD equipment for further testing. The unresolved issue of accurate positioning after high-speed centrifugation has hindered the automation of IVD equipment.

[0003] Meanwhile, existing centrifuges require the use of a rotor and a turntable, which are usually connected by threaded holes and threaded rods. During installation, the rotor needs to be twisted to fix it, but during the twisting of the rotor, the threaded rod on the top of the turntable can easily rotate with the rotor, making the installation process quite troublesome. Therefore, an automatically positioning centrifuge is proposed to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned shortcomings by providing an automatically positioned centrifuge that can automatically limit the position of the centrifuge spindle and correct the spindle position by controlling the motor, thereby achieving the effect of rotor positioning.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a centrifuge with automatic positioning capability, comprising:

[0006] The centrifuge chamber contains a centrifugal motor, the output end of which is fixedly connected to the centrifugal spindle. The centrifuge chamber also contains a drive motor and a control motor with a shaft locking function.

[0007] Centrifugal rotor, located at the top of the centrifugal spindle, is used to hold centrifuge tubes;

[0008] A support plate is located inside the centrifuge chamber. One end of the centrifugal spindle passes through the support plate. Multiple control rods are movably arranged on the support plate in a ring around the centrifugal spindle, and a control disk is rotatably mounted on the support plate. The control disk is driven by a drive motor, and the inner side of the control disk is driven by a control rod, so as to drive the control rod to rotate through the operation of the drive motor.

[0009] The control component is multiple and corresponds one-to-one with the control rod. The control component runs through the support plate from top to bottom and is threadedly connected to the control rod. The rotation of the control rod can push the control component to move closer to or away from the centrifugal spindle.

[0010] The calibration component comprises multiple calibration components, each corresponding to a control component. The calibration component is rotatably mounted at the bottom of the control component with the centrifugal spindle as its center. The calibration component includes a calibration part and a calibration ring connected together. The calibration part and the calibration ring move with the control component, causing the calibration part to clamp against the centrifugal spindle and the calibration ring to contact the output end of the control motor. The control motor drives the calibration ring to rotate, thereby adjusting the angle of the centrifugal rotor.

[0011] Furthermore, the centrifuge chamber is provided with a centrifuge cover and a sliding part corresponding to the centrifuge cover;

[0012] A control unit is located below the centrifuge cover, and teeth are provided on one side of the control unit;

[0013] A first drive rod is fixedly connected to the output end of the drive motor, and a first control gear is fixedly installed on the first drive rod. The first control gear meshes with the teeth of the control unit to realize the automatic opening and closing of the centrifuge lid through the drive motor.

[0014] Furthermore, the number of control units is two sets, and teeth are provided on the same side of both sets of control units;

[0015] The support plate is also rotatably provided with a second drive rod that is symmetrically distributed with the first drive rod. The second drive rod is provided with a second control gear. The first control gear and the second control gear respectively mesh with the teeth of the two sets of control parts.

[0016] The support plate is also provided with a second through hole and a third through hole corresponding to the first drive rod and the second drive rod;

[0017] It also includes a first drive gear and a second drive gear connected together by a drive belt. The first drive gear is mounted on the first drive rod and rotates with the first drive rod, while the second drive gear is mounted on the second drive rod to drive the second drive rod to rotate.

[0018] Furthermore, the control panel has teeth on its outer side, and the first drive rod has a rotating gear in the middle that meshes with the teeth of the control panel. The drive motor is used to synchronously drive the control panel to rotate and the centrifuge cover to open and close.

[0019] Furthermore, the control panel has a drive bevel gear on its inner side;

[0020] The support plate is provided with a limiting groove for the sliding of the control component, and a first mounting plate and a second mounting plate for supporting the control rod are provided on the support plate and above the limiting groove.

[0021] A control rod is rotatably provided between the first mounting plate and the second mounting plate, and the control rod is threaded on the outside.

[0022] The support plate has a first through hole for the centrifugal spindle to pass through. A control bevel gear is fixedly installed on the side of the control rod away from the first through hole. The drive bevel gear meshes with the control bevel gear to drive the control rod to rotate when the control disk rotates.

[0023] Furthermore, the control component includes a movable component threadedly connected to the control rod, a limiting component slidably connected to the limiting groove, and a support component located below the limiting component;

[0024] The movable component is located at the upper end of the support plate, and a control groove that meshes with the control rod is provided inside the movable component;

[0025] The support member is located at the lower end of the support plate and has a rotating groove at the end near the centrifugal spindle.

[0026] Furthermore, the plurality of the aforementioned correction elements are combined in a circular shape;

[0027] The curvature of the correction section is the same as that of the centrifugal spindle.

[0028] A rotating component is fixedly installed on the upper outer side of the correction part. The rotating component is adapted to the rotating groove. A connecting plate is installed on the correction part. The correction ring is fixedly connected to the correction part through the connecting plate.

[0029] The inner side of the correction ring is provided with a contact surface. When the correction part is in contact with the centrifugal spindle, the output end of the control motor contacts the contact surface of the correction ring to facilitate the control of the motor to adjust the position of the centrifugal spindle.

[0030] Furthermore, a control cylinder is provided on the outside of the centrifuge box;

[0031] The output end of the control cylinder extends into the centrifuge chamber and is provided with a telescopic part, and the end of the telescopic part is provided with an electromagnet.

[0032] The centrifugal rotor is equipped with an adsorption plate, which is an electromagnet. Multiple positioning elements are movably arranged in a ring on the outside of the adsorption plate. The multiple positioning elements are arc-shaped and combined to form a circular ring.

[0033] Both the long arc end and the short arc end of the positioning element are made of magnetic material. The short arc end of the positioning element can be attracted to the adsorption plate, and the long arc end of the positioning element can be attracted to the electromagnet.

[0034] Both the adsorption plate and the positioning component are provided with a placement groove for placing centrifuge tubes;

[0035] The centrifugal rotor has a moving groove for the positioning element to move.

[0036] Furthermore, a control panel is fixedly installed at the front end of the centrifuge, and a controller is provided in the control panel;

[0037] The centrifugal motor is equipped with a positioning sensor to monitor the position of the centrifugal motor's power output end. Both the control motor and the positioning sensor are electrically connected to the controller, which adjusts the rotation angle of the centrifugal spindle based on the feedback data from the positioning sensor.

[0038] The beneficial effects of this invention are reflected in:

[0039] 1. This invention uses a motor to automatically open the centrifuge lid, eliminating the need for manual operation. The centrifuge lid can also be opened manually if the centrifuge suddenly loses power.

[0040] 2. The present invention uses a magnetic suction device to wrap and limit the centrifuge tube, which can prevent the centrifuge tube from sliding in the rotor and causing safety accidents.

[0041] 3. This invention can automatically limit the centrifuge spindle when the centrifuge cover is opened, and can perform emergency braking on the rotating rotor to deal with emergencies. It can also keep the spindle in a fixed position when changing the rotor, thereby reducing the difficulty of changing the rotor.

[0042] 4. This invention can move the control component to a position that fits against the main shaft of the centrifuge rotor after the centrifuge lid is opened. It can also precisely move the rotor to a position that is convenient for manual or robotic arm to pick up and put down samples by controlling the cooperation of the motor and the calibration component, thereby reducing the difficulty of manual sample picking and putting down and providing a basis for the automated operation of the centrifuge. Attached Figure Description

[0043] Figure 1 This is a schematic diagram of the overall mechanism structure provided for the present invention.

[0044] Figure 2 This is a schematic diagram of the internal structure of the centrifuge provided by the present invention.

[0045] Figure 3 This is an enlarged view of the structure at point A provided by the present invention.

[0046] Figure 4 This is a front view of the internal structure of the centrifuge provided by the present invention.

[0047] Figure 5 This is a schematic diagram of the centrifuge cover structure provided by the present invention.

[0048] Figure 6 This is a schematic diagram of the internal structure of the overall mechanism provided by the present invention.

[0049] Figure 7 This is a schematic diagram of the centrifugal rotor structure provided by the present invention.

[0050] Figure 8 An exploded view of the internal structure of the overall mechanism provided by the present invention.

[0051] Figure 9 This is a schematic diagram of the support plate structure from a first-view perspective, provided for the present invention.

[0052] Figure 10 This is a schematic diagram of the support plate structure from a second perspective, as provided by the present invention.

[0053] Figure 11 This is a schematic diagram of the control component structure provided by the present invention.

[0054] Figure 12 This is a schematic diagram of the correction component structure provided by the present invention.

[0055] Explanation of reference numerals in the attached figures:

[0056] In the diagram, 100 is the centrifuge chamber; 101 is the sliding part; 110 is the control panel; 120 is the centrifuge lid; 121 is the switch handle; 122 is the control unit; 130 is the control cylinder; 131 is the telescopic part; 132 is the electromagnet; 140 is the centrifuge motor; 141 is the centrifuge spindle; 150 is the drive motor; 151 is the first drive rod; 152 is the rotating gear; 153 is the first control gear; 154 is the second drive rod; 155 is the second control gear; 160 is the control motor; 200 is the centrifuge rotor; 201 is the placement slot; 202 is the moving slot; 210 is the suction plate; 220 is the positioning component; and 300 is the support plate. 301, First through hole; 302, Second through hole; 303, Third through hole; 304, First drive gear; 305, Drive belt; 306, Second drive gear; 307, Limiting groove; 310, First mounting plate; 320, Second mounting plate; 330, Control lever; 331, Control bevel gear; 340, Control disc; 341, Drive bevel gear part; 400, Control component; 410, Moving component; 420, Control groove; 430, Limiting component; 440, Support component; 450, Rotating groove; 500, Correcting component; 510, Correcting part; 520, Rotating component; 530, Connecting plate; 540, Correcting ring. Detailed Implementation

[0057] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0058] Please see Figure 1-12 To address the issue of the threaded rod at the top of the centrifuge easily rotating with the rotor during rotation, thus causing installation difficulties, an automatically positioning centrifuge is proposed, comprising:

[0059] Centrifuge box 100, centrifuge motor 140 is installed inside centrifuge box 100, centrifuge main shaft 141 is fixedly connected to the output end of centrifuge motor 140, and drive motor 150 is also installed inside centrifuge box 100.

[0060] Centrifugal rotor 200 is located at the top of centrifugal main shaft 141 and is used to hold centrifugal tubes;

[0061] A support plate 300 is disposed inside the centrifuge chamber 100. One end of the centrifugal spindle 141 passes through the support plate 300. Multiple control rods 330 are movably disposed on the support plate 300 in a ring with the centrifugal spindle 141 as the center, and a control disk 340 is rotatably disposed on the support plate 300. The control disk 340 is connected to the drive motor 150. The inner side of the control disk 340 is connected to the control rods 330, so as to drive the control rods 330 to rotate through the operation of the drive motor 150.

[0062] There are multiple control components 400, each corresponding to a control rod 330. Each control component 400 extends from top to bottom through the support plate 300 and is threadedly connected to the control rod 330. The rotation of the control rod 330 can push the control component 400 to move closer to or further away from the centrifugal spindle 141.

[0063] The calibration component 500 is a plurality of components, each corresponding to one of the control components 400. The control component 400 has a rotating groove 450. The calibration component 500 is rotatably disposed in the rotating groove 450 with the centrifugal main shaft 141 as the center. The calibration component 500 includes a calibration part 510 and a calibration ring 540 connected together. The calibration part 510 and the calibration ring 540 are used to move with the control component 400, so that the calibration part 510 abuts against the centrifugal main shaft 141 to clamp it, and the calibration ring 540 contacts the output end of the control motor 160. The control motor 160 drives the calibration ring 540 to rotate, thereby adjusting the angle of the centrifugal rotor 200.

[0064] With the above structural configuration, when the equipment is in use, the drive motor 150 is driven to rotate. The drive motor 150 is rotatably connected to the control disk 340, which drives the control disk 340 to rotate. When the control disk 340 rotates, it can drive the multiple control rods 330 distributed on it to rotate. Since the control component 400 is threadedly connected to the control rod 330, when the control rod 330 rotates, it can drive the control component 400 and the correction component 500 set below it to move in position, so that the correction part 510 contacts the centrifugal main shaft 141 to clamp it, thereby locking the centrifugal main shaft 141 and facilitating the replacement of its top turntable.

[0065] It should be further explained that the calibration component 500 also has a calibration ring 540. When the calibration component 500 moves, the calibration ring 540 contacts the output end of the control motor 160. The control motor 160 drives the calibration ring 540 to rotate, thereby adjusting the angle of the centrifugal rotor 200.

[0066] Specifically, the plurality of the aforementioned calibration components 500 are combined in a circular shape;

[0067] The curvature of the correction section 510 is the same as that of the centrifugal spindle 141.

[0068] A rotating component 520 is fixedly installed on the upper outer side of the correction part 510. The rotating component 520 is adapted to the rotating groove 450. A connecting plate 530 is provided on the correction part 510. The correction ring 540 is fixedly connected to the correction part 510 through the connecting plate 530.

[0069] The inner side of the correction ring 540 is provided with a contact surface. When the correction part 510 is in contact with the centrifugal spindle 141, the output end of the control motor 160 contacts the contact surface of the correction ring 540 to facilitate the control motor 160 to adjust the position of the centrifugal spindle 141. The contact surface can be an uneven friction surface or have teeth.

[0070] With the above structural setup, after the equipment is locked, in order to solve the problem of accurate positioning after the centrifuge stops rotating at high speed, this application also proposes that the control panel 110 is equipped with a controller;

[0071] The centrifugal motor 140 is equipped with a positioning sensor to monitor the position of the power output end of the centrifugal motor 140. The control motor 160 and the positioning sensor are both electrically connected to the controller. The controller is used to adjust the rotation angle of the centrifugal spindle 141 by controlling the motor 160 based on the feedback data from the positioning sensor.

[0072] Through the cooperation of the above-mentioned components, the adjustment steps in this embodiment are as follows:

[0073] Firstly, by driving the motor 150, the control lever 330 rotates, driving the control component 400 and the correction component 500 below it to move, so that the correction part 510 contacts the centrifugal main shaft 141 and clamps it. During this process, the control motor 160 self-locks, so that after the friction surface of the correction ring 540 contacts the output shaft of the control motor 160, the friction force generated hinders the rotation of the centrifugal main shaft 141, thereby locking the centrifugal main shaft 141.

[0074] Secondly, after locking is completed, the positioning position of the centrifugal spindle 141 is obtained by the positioning sensor, and then the rotation angle required for the centrifugal spindle 141 to rotate is calculated by the controller.

[0075] Finally, by controlling the contact between the control motor 160 and the calibration ring 540, the controller uses the data fed back by the positioning sensor to make the control motor 160 rotate. When the control motor 160 rotates, it drives the centrifugal main shaft 141 to adjust the angle, so as to achieve the purpose of precise positioning after the high-speed centrifugal rotation stops.

[0076] The need to install a top cover after centrifuge tubes are placed in the rotor to prevent safety accidents, and the need to remove the top cover before handling the centrifuge tubes when they are transferred manually or by a robotic arm, can hinder the automation of centrifuge equipment.

[0077] Another embodiment that needs to be described in this application is that the centrifuge box 100 is provided with a centrifuge cover 120 and a sliding part 101 corresponding to the centrifuge cover 120;

[0078] A control unit 122 is provided below the centrifuge cover 120, and teeth are provided on one side of the control unit 122;

[0079] The output end of the drive motor 150 is fixedly connected to a first drive rod 151, and a first control gear 153 is fixedly provided at the top end of the first drive rod 151. The first control gear 153 meshes with the toothed portion of the control unit 122 to realize the automatic opening and closing of the centrifuge cover 120 through the drive motor 150.

[0080] With the above structural configuration, when the equipment is in use, in addition to driving the control panel 340 to rotate and lock the centrifugal spindle 141, the drive motor 150 can also synchronously control the opening and closing of the centrifuge cover 120 through the first control gear 153 set at the top of the first drive rod 151, which is convenient for the user of the equipment.

[0081] It should be further explained that, in order to ensure the smooth opening and closing of the centrifuge lid 120, there are two sets of control units 122, and teeth are provided on the same side of both sets of control units 122.

[0082] The support plate 300 is rotatably provided with a second drive rod 154 symmetrically distributed with the first drive rod 151. A second control gear 155 is fixedly provided at the top of the second drive rod 154. The first control gear 153 and the second control gear 155 respectively mesh with the teeth of the two sets of control parts 122.

[0083] The support plate 300 is also provided with a second through hole 302 and a third through hole 303 corresponding to the first drive rod 151 and the second drive rod 154;

[0084] like Figure 10 As shown, it also includes a first drive gear 304 and a second drive gear 306 connected together by a drive belt 305. The first drive gear 304 is mounted on the first drive rod 151 and rotates with the first drive rod 151. The second drive gear 306 is mounted on the second drive rod 154 to drive the second drive rod 154 to rotate, so as to realize the automatic opening and closing of the centrifuge cover 120 through the drive motor 150.

[0085] With the above-mentioned structural configuration, when the equipment is in use, the opening and closing of the centrifuge cover 120 is realized through two sets of control units 122 and the first drive rod 151 and the second drive rod 154 that mesh with the two sets of control units 122 and can rotate synchronously.

[0086] like Figure 6 As shown, the control disk 340 has teeth on its outer side, and the first drive rod 151 has a rotating gear 152 in the middle that meshes with the teeth of the control disk 340. The drive motor 150 is used to synchronously drive the control disk 340 to rotate and the centrifuge cover 120 to open and close.

[0087] like Figure 9As shown, the control panel 340 has a drive bevel gear 341 on its inner side;

[0088] The support plate 300 is provided with a limiting groove 307 for the control component 400 to slide. A first mounting plate 310 and a second mounting plate 320 for supporting the control rod 330 are provided on the support plate 300 and above the limiting groove 307.

[0089] A control rod 330 is rotatably disposed between the first mounting plate 310 and the second mounting plate 320, and the control rod 330 is threaded on the outside.

[0090] The support plate 300 has a first through hole 301 for the centrifugal spindle 141 to pass through. The control rod 330 is fixedly provided with a control bevel gear 331 on the side away from the first through hole 301. The driving bevel gear 341 meshes with the control bevel gear 331 to drive the control rod 330 to rotate when the control disk 340 rotates.

[0091] By setting up the above structure, it is ensured that when the control disk 340 rotates, the control bevel gear 331 on the control rod 330 meshes with the drive bevel gear 341, thereby driving the control rod 330 to rotate. The control component 400 is threadedly connected to the control rod 330, and the control component 400 is slidably disposed on the support plate 300, thus achieving the effect of driving the control component 400 to move closer to or away from the centrifugal spindle 141 when the control disk 340 rotates.

[0092] In this application, such as Figure 11 As shown, the control component 400 includes a movable component 410 threadedly connected to the control rod 330, a limiting component 430 slidably connected to the limiting groove 307, and a support component 440 located below the limiting component 430.

[0093] The movable component 410 is located at the upper end of the support plate 300, and a control groove 420 that meshes with the control rod 330 is provided in the movable component 410;

[0094] The support member 440 is located at the lower end of the support plate 300 and has a rotating groove 450 at the end near the centrifugal spindle 141.

[0095] Furthermore, the plurality of the aforementioned correction elements 500 are combined in a circular shape;

[0096] The curvature of the correction section 510 is the same as that of the centrifugal spindle 141.

[0097] A rotating component 520 is fixedly installed on the upper outer side of the correction part 510. The rotating component 520 is adapted to the rotating groove 450. A connecting plate 530 is provided on the correction part 510. The correction ring 540 is fixedly connected to the correction part 510 through the connecting plate 530.

[0098] The inner side of the correction ring 540 is provided with a contact surface. When the correction part 510 is in contact with the centrifugal spindle 141, the output end of the control motor 160 contacts the contact surface of the correction ring 540 to facilitate the control motor 160 to adjust the position of the centrifugal spindle 141.

[0099] In both of the above, the calibration component 500 is rotatably mounted within the control component 400, wherein the control component 400 is provided with a control groove 420, and the calibration part 510 is provided with a connecting plate 530, which is slidably mounted within the control groove 420. When the control component 400 contacts and clamps the centrifugal spindle 141, both the control component 400 and the calibration component 500 form an annular shape. At this time, the control groove 420 is an annular groove, and the connecting plate 530 is an annular ring that can rotate inside the annular groove. The calibration part 510 is used to lock the centrifugal spindle 141, and the calibration ring 540, under the action of the control motor 160, adjusts the angle or stops the centrifugal spindle 141 from rotating.

[0100] In this application, a control cylinder 130 is provided on the outside of the centrifuge box 100 to facilitate the handling of centrifuge tubes;

[0101] The output end of the control cylinder 130 extends into the centrifuge 100 and is provided with a telescopic part 131, and an electromagnet 132 is provided at the end of the telescopic part 131.

[0102] The centrifugal rotor 200 is provided with an adsorption disk 210, which is an electromagnet. Multiple positioning elements 220 are movably arranged in a ring on the outside of the adsorption disk 210. The multiple positioning elements 220 are arc-shaped and the multiple positioning elements 220 are combined to form a ring.

[0103] Both the long arc end and the short arc end of the positioning element 220 are made of magnetic material. The short arc end of the positioning element 220 can be attracted to the adsorption disk 210, and the long arc end of the positioning element 220 can be attracted to the electromagnet 132.

[0104] The adsorption plate 210 and the positioning member 220 are both provided with a placement groove 201 for placing centrifuge tubes;

[0105] The centrifugal rotor 200 is provided with a moving groove 202 for the positioning member 220 to move.

[0106] With the above-described structure, the device can control the extension and retraction of the telescopic part 131 of the control cylinder 130, so that the electromagnet 132 at the end of the telescopic part 131 approaches the positioning member 220 on the outside of the adsorption plate 210. When the electromagnet 132 is energized, the adsorption plate 210 is de-energized, or the magnetic force of the electromagnet 132 is greater than the magnetic force of the adsorption plate 210. At this time, under the action of the electromagnet 132, the positioning member 220 can be disengaged from the adsorption plate 210, thereby stopping the adsorption plate 210 from clamping the centrifuge tubes inside the placement tank 201. When the adsorption plate 210 rotates, it can be used in conjunction with existing automatic equipment to achieve rapid removal of centrifuge tubes.

[0107] Finally, a control panel 110 is fixedly installed at the front end of the centrifuge 100 for operators to set parameters such as centrifugation speed and centrifugation time. A switch handle 121 is installed on the upper left side of the centrifuge cover 120 for manual opening of the centrifuge cover 120.

[0108] Working principle:

[0109] When the rotor needs to be replaced: the control motor 160 locks the shaft, and then the drive motor 150 drives the first drive rod 151 and the first control gear 153 to rotate. This drives the second control gear 155 to rotate through the first drive gear 304, drive belt 305, and second drive gear 306, thereby moving the centrifuge cover 120. At the same time, the rotation of the first drive rod 151 drives the control disk 340 to rotate through the rotating gear 152, thereby controlling the rotation of the control bevel gear 331. Through the cooperation of the control rod 330 and the moving part 410, the control part 400 moves towards the centrifugal main shaft 141 until the inner side of the correction part 510 is in contact with the centrifugal main shaft 141 and the inner side of the correction ring 540 is in contact with the rotation output end of the control motor 160, thus limiting the centrifugal main shaft 141 and solving the problem of inconvenient installation and disassembly caused by the rotation of the centrifugal main shaft 141 when replacing the rotor.

[0110] When centrifuge tubes need to be picked up or put down: control cylinder 130 controls telescopic part 131 to move towards centrifuge main shaft 141 until magnetic suction part 132 is attached to the outside of positioning part 220 and control magnetic suction part 132 to attract it. Then control cylinder 130 controls telescopic part 131 to move away from centrifuge main shaft 141, thereby releasing the restriction on centrifuge tubes to facilitate picking up or putting down centrifuge tubes.

[0111] When the rotor needs to be positioned: After the above steps, the control motor 160 calculates the required angle for the power output of the centrifugal motor 140, and controls the rotation of the correction ring 540 by the control motor 160, so that the rotating part 520 moves inside the rotating groove 450, and drives the centrifugal main shaft 141 to rotate through the correction part 510 until the centrifugal main shaft 141 is moved to a position that is easy for manual or robotic arms to pick up and put down, thereby reducing the difficulty of manual sample handling and providing a basis for automated testing of centrifuges.

[0112] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0113] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0114] Additionally, "multiple" refers to two or more.

[0115] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatically positionable centrifuge, characterized in that, include: Centrifuge (100), centrifuge motor (140) is provided inside centrifuge (100), centrifuge main shaft (141) is fixedly connected to the output end of centrifuge motor (140), and drive motor (150) and control motor (160) with shaft locking function are also provided inside centrifuge (100). Centrifugal rotor (200) is located at the top of the centrifugal main shaft (141) and is used to hold centrifugal tubes; A support plate (300) is located inside the centrifuge (100). One end of the centrifugal spindle (141) passes through the support plate (300). Multiple control rods (330) arranged in a ring around the centrifugal spindle (141) are movably arranged on the support plate (300). A control disk (340) is rotatably arranged on the support plate (300). The control disk (340) is connected to the drive motor (150). The inner side of the control disk (340) is connected to the control rods (330) to drive the control rods (330) to rotate through the operation of the drive motor (150). There are multiple control components (400) and each control component (330) corresponds to a control rod (330). The control component (400) passes through the support plate (300) from top to bottom. The control component (400) is threadedly connected to the control rod (330). The rotation of the control rod (330) can push the control component (400) to move closer to or away from the centrifugal main shaft (141). The calibration component (500) is a plurality of such calibration components, each corresponding to one of the control components (400). The calibration component (500) is rotatably disposed at the bottom of the control component (400) with the centrifugal main shaft (141) as the center. The calibration component (500) includes a calibration part (510) and a calibration ring (540) connected together. The calibration part (510) and the calibration ring (540) are used to move with the control component (400), so that the calibration part (510) abuts against the centrifugal main shaft (141) for clamping, and the calibration ring (540) contacts the output end of the control motor (160). The control motor (160) drives the calibration ring (540) to rotate, thereby adjusting the angle of the centrifugal rotor (200).

2. An automatically positionable centrifuge according to claim 1, wherein: The centrifuge box (100) is provided with a centrifuge cover (120) and a sliding part (101) corresponding to the centrifuge cover (120); A control unit (122) is provided below the centrifuge cover (120), and teeth are provided on one side of the control unit (122); The output end of the drive motor (150) is fixedly connected to a first drive rod (151), and a first control gear (153) is provided on the first drive rod (151). The first control gear (153) meshes with the teeth of the control unit (122) to realize the automatic opening and closing of the centrifuge cover (120) through the drive motor (150).

3. An automatically positionable centrifuge according to claim 2, wherein: The number of control units (122) is two sets, and teeth are provided on the same side of both sets of control units (122); The support plate (300) is also rotatably provided with a second drive rod (154), and a second control gear (155) is provided on the second drive rod (154). The first control gear (153) and the second control gear (155) respectively mesh with the teeth of the two sets of control units (122). The support plate (300) is also provided with a second through hole (302) and a third through hole (303) corresponding to the first drive rod (151) and the second drive rod (154); It also includes a first drive gear (304) and a second drive gear (306) connected together by a drive belt (305). The first drive gear (304) is mounted on the first drive rod (151) and rotates with the first drive rod (151). The second drive gear (306) is mounted on the second drive rod (154) and is used to drive the second drive rod (154) to rotate.

4. An automatically positionable centrifuge as defined in claim 3, wherein: The control disk (340) has teeth on its outer side, and the first drive rod (151) has a rotating gear (152) that meshes with the teeth of the control disk (340). The drive motor (150) is used to synchronously drive the control disk (340) to rotate and the centrifuge cover (120) to open and close.

5. An automatically positionable centrifuge as defined in claim 4, wherein: The control panel (340) is provided with a drive bevel gear (341) on its inner side; The support plate (300) is provided with a limiting groove (307) for sliding of the control component (400), and a first mounting plate (310) and a second mounting plate (320) for supporting the control rod (330) are provided on the support plate (300) and above the limiting groove (307). A control rod (330) is rotatably disposed between the first mounting plate (310) and the second mounting plate (320), and the control rod (330) is threaded on the outside; A control bevel gear (331) is fixedly provided on the side of the control lever (330) away from the first through hole (301). The drive bevel gear (341) meshes with the control bevel gear (331) to drive the control lever (330) to rotate when the control disk (340) rotates.

6. The automatically positioning centrifuge according to claim 5, characterized in that: The control component (400) includes a movable component (410) threadedly connected to the control rod (330), a limiting component (430) slidably connected to the limiting groove (307), and a support component (440) located below the limiting component (430); The movable component (410) is located at the upper end of the support plate (300), and a control groove (420) that meshes with the control rod (330) is provided in the movable component (410); The support member (440) is located at the lower end of the support plate (300) and has a rotating groove (450) at the end near the centrifugal spindle (141).

7. The automatically positioning centrifuge according to claim 3, characterized in that: The plurality of the aforementioned correction elements (500) are combined in a circular shape; The curvature of the correction section (510) is the same as that of the centrifugal spindle (141); A rotating component (520) is fixedly provided on the upper outer side of the correction part (510). The rotating component (520) is adapted to the rotating groove (450). A connecting plate (530) is provided on the correction part (510). The correction ring (540) is fixedly connected to the correction part (510) through the connecting plate (530). The inner side of the correction ring (540) is provided with a contact surface. When the correction part (510) is in contact with the centrifugal spindle (141), the output end of the control motor (160) contacts the contact surface of the correction ring (540) so as to facilitate the control motor (160) to adjust the position of the centrifugal spindle (141).

8. The automatically positioning centrifuge according to claim 4, characterized in that: A control cylinder (130) is provided on the outside of the centrifuge (100); The output end of the control cylinder (130) extends into the centrifuge (100) and is provided with a telescopic part (131), and an electromagnet (132) is provided at the end of the telescopic part (131). The centrifugal rotor (200) is provided with an adsorption disk (210), the adsorption disk (210) is an electromagnet, and multiple positioning elements (220) arranged in a ring are movably arranged on the outside of the adsorption disk (210). The multiple positioning elements (220) are arc-shaped, and the multiple positioning elements (220) are combined to form a ring. The long arc end and the short arc end of the positioning element (220) are both made of magnetic material. The short arc end of the positioning element (220) can be attracted to the adsorption disk (210), and the long arc end of the positioning element (220) can be attracted to the electromagnet (132). A placement groove (201) for placing centrifuge tubes is provided between the adsorption plate (210) and the positioning member (220); The centrifugal rotor (200) has a moving groove (202) for the positioning member (220) to move.

9. The automatically positioning centrifuge according to claim 8, characterized in that: A control panel (110) is fixedly installed at the front end of the centrifuge (100), and a controller is provided inside the control panel (110); The centrifugal motor (140) is equipped with a positioning sensor to monitor the position of the power output end of the centrifugal motor (140). The control motor (160) and the positioning sensor are both electrically connected to the controller. The controller is used to adjust the rotation angle of the centrifugal spindle (141) by controlling the motor (160) according to the feedback data from the positioning sensor.

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