Electromagnetic drive transmission system

Abstract

The application discloses an electromagnetic driving transmission system, comprising: an electromagnetic track, two rows of driving coil groups are arranged on the two sides of the electromagnetic track, each row of the driving coil groups comprises a plurality of driving coils which are uniformly arranged along a preset direction, and the driving coil groups are used for generating a moving magnetic field; a sample holder is arranged between the two rows of the driving coil groups, a magnet is arranged on the sample holder, and the magnet moves along the preset direction under the action of the moving magnetic field; and pulleys are arranged on the two sides of the sample holder which faces the track frames, so as to constrain the sample holder between the two track frames. The transmission system of the application utilizes the electromagnetic driving mode, so that the sample holder can be subjected to a stable driving force on the electromagnetic track, and the stable operation of the sample holder is realized through the pulleys.

Description

Technical Field

[0001] This application relates to the field of sample transmission technology, and in particular to an electromagnetic drive transmission system. Background Technology

[0002] With the development of precision medicine, medical immunoassay, as a core area of ​​in vitro diagnostics, is becoming increasingly sophisticated, placing new demands on the efficiency, stability, and clean transportation of samples.

[0003] Currently, the main methods for transporting samples for testing involve using traditional stepper or servo motors to drive mechanical belts for transmission, with the driving force primarily derived from the contact friction between the sample holder and the belt. Some manufacturers also use electromagnetic drives to transport samples, utilizing the electromagnetic force generated by a drive coil to move magnets on the sample, thereby achieving sample transport. However, manufacturing and assembly errors in electromagnetic drive devices, as well as the stability of the current flowing through the drive coil, directly affect the sample transport efficiency. This can lead to samples not moving smoothly under the influence of electromagnetic force. If the sample is a liquid, it may tilt or tip over, causing leakage and severely impacting the test results.

[0004] Therefore, how to make the sample run smoothly under the action of electromagnetic force is a technical problem that needs to be solved by those skilled in the art. Utility Model Content

[0005] The purpose of this application is to provide an electromagnetic drive transmission system that uses electromagnetic drive to enable the sample holder to receive a stable driving force on an electromagnetic track and achieves smooth operation of the sample holder through pulleys.

[0006] To achieve the above objectives, this application provides an electromagnetic drive transmission system, comprising:

[0007] An electromagnetic track, comprising a track frame located on both sides and a drive coil group disposed on the track frame, wherein each row of the drive coil group comprises several drive coils evenly arranged along a preset direction, and the drive coil group is used to generate a moving magnetic field.

[0008] A sample holder is disposed between the drive coil groups of the two track frames. A magnet is provided on the sample holder, and the magnet moves along the preset direction under the action of the moving magnetic field.

[0009] Pullers are provided on both sides of the sample holder facing the track frame to constrain the sample holder between the two track frames.

[0010] In some embodiments, the magnets are located on two opposite sides of the sample holder, and the magnets on both sides of the sample holder correspond to two rows of drive coil groups, and the pulleys are located on the two opposite sides of the sample holder where the magnets are located.

[0011] In some embodiments, the outer peripheral surface of the pulley protrudes from the side of the sample holder, and the sample holder is spaced apart from the track frame.

[0012] In some embodiments, two rows of drive coil groups are symmetrically arranged on both sides of the sample holder, and two symmetrical drive coils in the two rows of drive coil groups are connected in series for synchronous excitation.

[0013] In some embodiments, in each row of the drive coil group, at least three of the drive coils are supplied with three-phase alternating current with a phase difference of 120°, and the magnetic fields generated by the currents of each phase are superimposed in space to form the moving magnetic field with constant amplitude and continuously changing direction.

[0014] In some embodiments, the sample holder has protruding anti-detachment strips on both sides of the magnet, the anti-detachment strips extending along the movement direction of the sample holder, and the track frame has anti-detachment grooves extending in the same direction as the anti-detachment strips. The anti-detachment strips extend into the anti-detachment grooves and are spaced apart from the anti-detachment grooves. The anti-detachment grooves prevent the sample holder from detaching from the electromagnetic track through the anti-detachment strips.

[0015] In some embodiments, a permanent magnet is provided at the bottom of the sample holder, and a magnetic sensor is provided between the two track frames located below the permanent magnet. The magnetic sensor cooperates with the permanent magnet to detect the position and speed information of the permanent magnet.

[0016] In some embodiments, a control device is also included, which is connected to the drive coil and is used to control the current state of the drive coil to generate the moving magnetic field;

[0017] The control device is connected to the magnetic sensor to obtain the position and velocity information of the permanent magnet.

[0018] In some embodiments, the upper part of the sample holder is provided with a fixing bracket, and the sampling tube is placed in the fixing bracket.

[0019] In some embodiments, the pulleys are divided into two groups in the height direction, with the pulleys of each group distributed on both sides of the sample holder facing the electromagnetic track.

[0020] The beneficial effect of this application is that, through the cooperation of the electromagnetic track and the sample holder, the moving magnetic field generated by the two sets of drive coils on both sides of the electromagnetic track allows the magnet on the sample holder to move in a preset direction under the action of the moving magnetic field. Specifically, the electromagnetic track includes track frames on both sides and drive coil sets on the track frames. Each track frame is equipped with a set of drive coil sets, and the sample holder is located between the two rows of drive coil sets. This allows the magnet on the sample holder to be subjected to synchronous electromagnetic forces from the drive coil sets on both sides, thereby making the electromagnetic forces on the sample holder in the electromagnetic track more balanced. Furthermore, under the limiting action of the pulleys, even if there are assembly errors or electromagnetic force imbalances, the sample holder can still run smoothly between the track frames without tilting or falling over, ensuring that the sample can be transported smoothly and safely. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0022] Figure 1 This is a three-dimensional structural diagram of the electromagnetic drive transmission system provided in the embodiments of this application;

[0023] Figure 2 This is a top view of the electromagnetic drive transmission system provided in an embodiment of this application;

[0024] Figure 3 This is a schematic diagram of the sample holder and electromagnetic track assembly structure provided in the embodiments of this application;

[0025] Figure 4 This is a schematic diagram of the three-dimensional structure of the sample holder provided in the embodiments of this application;

[0026] Figure 5 This is a front view schematic diagram of the sample holder structure provided in the embodiments of this application;

[0027] Figure 6 This is a schematic diagram of the side view structure of the sample holder provided in the embodiment of this application.

[0028] In the diagram: 1-Sample holder; 2-Electromagnetic track;

[0029] 11-Body; 12-Magnet; 13-Frame; 14-Fixed bracket; 15-Pulley; 16-Spinning shaft; 17-Stabilizer; 18-Permanent magnet;

[0030] 111 - Anti-slip strip; 131 - Side opening; 161 - Support plane;

[0031] 21-Drive coil; 22-Rail frame; 23-Magnetic sensor;

[0032] 221 - Anti-detachment from groove. Detailed Implementation

[0033] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0034] It should be noted that in this embodiment, the orientation or positional relationship indicated by terms such as "upper," "lower," "front," and "rear" is based on the orientation or positional relationship shown in the accompanying drawings. It is used only for the convenience of describing this application and for simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this application. Furthermore, "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] To enable those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0036] like Figure 1 and Figure 2 As shown, in this embodiment, an electromagnetic drive transmission system is provided. The transmission system includes an electromagnetic track 2 and a sample tray 1. The electromagnetic track 2 includes track frames 22 located on both sides and drive coil groups disposed on the track frames 22. Each track frame 22 is provided with a set of drive coil groups, and each row of drive coil groups includes several drive coils 21 evenly arranged along a preset direction. After three-phase alternating current with a certain phase difference is passed through different drive coils 21, they will combine to form a moving magnetic field. The sample tray 1 is disposed between the two rows of drive coil groups, and a magnet 12 is provided on the sample tray 1. When the magnet 12 is in the moving magnetic field, the moving magnetic field will generate a force to push the magnet 12 to move, thereby realizing the transportation of the sample tray 1.

[0037] Furthermore, the sample holder 1 can be suspended on the electromagnetic track 2 by the cooperation of the magnet 12 and the drive coil 21. In this way, the sample holder 1 and the electromagnetic track 2 are not in physical contact through magnetic levitation, and the suspended sample holder 1 is driven by electromagnetic drive. The driving force is not limited by the magnitude of friction, which reduces friction loss, avoids contamination, improves the sample detection environment, and increases the throughput of the detection sample.

[0038] Please refer to 1. The electromagnetic track 2 has a U-shaped structure. The sample holder 1 is suspended in the middle of the U-shaped groove of the electromagnetic track 2. Magnets 12 are embedded on both sides of the sample holder 1. Correspondingly, drive coils 21 are provided on the electromagnetic track 2 on both sides of the sample holder 1. When the drive coil 21 is energized, it generates a magnetic field. This magnetic field can drive the magnets 12 on the sample holder 1, thereby keeping the sample holder 1 in a suspended state. Furthermore, the sinusoidal current in the drive coil 21 causes the magnetic field synthesized by the drive coil 21 to move, thereby forming a moving magnetic field. Then, under the action of like poles repulsion, the sample holder 1 moves along the electromagnetic track 2.

[0039] The sample tray 1 is equipped with pulleys 15, which are located on both sides of the sample tray 1 facing the track frame 22. The pulleys 15 on each side have a height difference in the height direction. That is, the pulleys 15 on both sides of the sample tray 1 are divided into at least two groups in the height direction. Each group of pulleys 15 is distributed on both sides of the sample tray 1 facing the electromagnetic track 2, so that the pulleys 15 on both sides of the sample tray 1 are rectangularly distributed. Based on the rolling contact between the pulleys 15 and the track frame 22, the upper and lower parts of the sample tray 1 can roll and contact the track frame 22 on both sides, thereby ensuring that the sample tray 1 can run smoothly between the track frames 22 and will not tilt or fall over.

[0040] In summary, this application utilizes the cooperation between the electromagnetic track 2 and the sample holder 1 to generate a moving magnetic field from the two sets of drive coils on both sides of the electromagnetic track 2. The magnet 12 on the sample holder 1 can then move along a preset direction under the influence of this moving magnetic field. Specifically, the electromagnetic track 2 includes track frames 22 located on both sides and drive coil sets mounted on the track frames 22. Each track frame 22 has one set of drive coils, and the sample holder 1 is located between the two sets of drive coils. This allows the magnet 12 on the sample holder 1 to receive synchronous electromagnetic forces from the drive coil sets on both sides, resulting in a more balanced electromagnetic force on the sample holder 1 within the electromagnetic track 2. Furthermore, under the limiting action of the pulley 15, even with assembly errors and electromagnetic force imbalances, the sample holder 1 can still move smoothly between the track frames 22 without tilting or tipping over, ensuring stable and safe transport of the sample.

[0041] Magnets 12 are symmetrically arranged on both opposite sides of the sample holder 1. The magnets 12 are sinusoidally magnetized, and each magnet 12 on one side of the sample holder 1 corresponds to one of two rows of drive coils. Furthermore, the drive coils 21 contain a silicon steel structure, which increases the intensity of the electromagnetic field and improves heat dissipation. Multiple magnets 12 can be set on each side of the sample holder 1, such as two, three, or four, ensuring that the number and specifications of the magnets 12 on both opposite sides of the sample holder 1 are consistent. This ensures that the sample holder 1 experiences equal force on both sides within the moving magnetic field, resulting in smoother movement of the sample holder 1.

[0042] Please refer to Figure 3 Two track frames 22 are fixedly arranged relative to each other, thus forming a U-shaped structure of electromagnetic track 2. Two rows of drive coil groups are respectively set on the two track frames 22, and when the sample holder 1 is placed between the two track frames 22, the sample holder 1 is spaced apart from the track frames 22, so that the sample holder 1 moves in a suspended state.

[0043] It should be noted that each track frame 22 may be provided with a slot structure to accommodate the drive coil assembly. The drive coil 21 can be embedded in the slot structure. The slot structure should have an opening facing the sample holder 1, so that the magnetic field generated by the drive coil 21 can directly act on the magnet 12 of the sample holder 1, ensuring the magnetic field strength. Furthermore, a magnetic field shielding structure can be provided around the slot structure, so that the magnetic field can only be output outward through the opening on the slot structure, preventing magnetic fields in other directions from interacting with the magnet 12 on the sample holder 1, and ensuring the movement stability of the sample holder 1.

[0044] In addition, two rows of drive coil groups are set on both sides of the sample holder 1, and the two symmetrical drive coils 21 in the two rows of drive coil groups should be connected in series to achieve synchronous excitation of the sample holder 1, ensuring that both sides of the sample holder 1 can be subjected to the same and symmetrical magnetic field, so that the thrust on both sides of the sample holder 1 remains consistent when it moves in the electromagnetic track 2, thereby ensuring that the sample holder 1 can move smoothly in the moving magnetic field.

[0045] In each row of drive coil groups, at least three drive coils 21 are supplied with three-phase alternating current with a phase difference of 120°. Since the drive coils 21 are arranged in a straight line along a preset direction, the magnetic fields generated by the three-phase current cannot form a spatially symmetrical superposition, so a traditional circular rotating magnetic field cannot be generated. At this time, the synthesized magnetic field is a pulsating magnetic field, and its direction oscillates periodically along a straight line.

[0046] The fixed magnetic field of magnet 12 and the alternating magnetic field of drive coil 21 repel each other, thereby generating a periodic thrust, causing the sample holder 1 with magnet 12 to move continuously in a preset direction; in other words, the drive coil group of this application can be similar to a three-phase rotating motor that is radially cut open and flattened, and the sample holder 1 is the mover of the three-phase rotating motor, thereby realizing that the mover moves linearly in a preset direction.

[0047] Based on the above embodiments, in each row of drive coil groups, six drive coils 21 can be used as an example. The drive coils 21 are grouped in pairs, and three groups of drive coils 21 are respectively supplied with three-phase alternating current with a phase difference of 120°, thereby synthesizing a larger range of moving magnetic field, thus increasing the moving distance of the sample holder 1 in the electromagnetic track 2. Details will not be elaborated here; multiple groups of drive coils 21 can be superimposed according to actual conditions to form a moving magnetic field that meets the requirements and ensures the transport distance of the sample holder 1.

[0048] Furthermore, the moving speed of the moving magnetic field can be changed by altering the frequency of the three-phase alternating current, thereby changing the moving speed of sample holder 1 within the moving magnetic field; and by swapping the order of any two current inputs, the moving direction of the moving magnetic field will be changed, thereby changing the direction of motion of sample holder 1.

[0049] Please refer to Figures 4 to 6 The sample holder 1 includes a body 11 and a magnet 12. The body 11 is the main bearing component and can be used to hold samples. The pulleys 15 are rotatably arranged on the two opposite sides of the body 11 with the magnets 12. The pulleys 15 are rotatably connected to the body 11 through a rotating shaft 16. The outer peripheral surface of the pulleys 15 protrudes from the side of the body 11 and rolls against the electromagnetic track 2 after protruding, thereby guiding the body 11 to move in a specified direction within the electromagnetic track 2 and improving the movement stability of the sample holder 1.

[0050] Furthermore, at least one pulley 15 is provided on the bottom surface of the main body 11, and a corresponding rotating shaft 16 is also provided. One end of the rotating shaft 16 is fixedly connected to the bottom surface of the main body 11, and the other end extends downward toward the lower side of the main body 11 and forms a supporting plane 161 at the end. The pulley 15 is rotatably disposed between the supporting plane 161 and the bottom surface of the main body 11. When the sample tray 1 is suitable for belt conveyor, it can be stably placed on the conveyor surface of the belt through the supporting plane 161, thereby realizing the transportation of the sample tray 1.

[0051] As can be seen, the sample holder 1 of this application can move within the moving magnetic field of the electromagnetic track 2 by cooperating with the magnet 12 on it, thereby achieving electromagnetic drive. Furthermore, pulleys 15 are provided on both sides of the body 11 of the sample holder 1, which roll and abut against the electromagnetic track 2, thus keeping the sides of the sample holder 1 in contact with the electromagnetic track 2. This prevents the magnet 12 from adsorbing onto the electromagnetic track 2 and assists the movement of the sample holder 1, providing a certain guiding effect and making the sample holder 1 move more smoothly within the electromagnetic track 2. In addition, the rotating shaft 16 on the bottom surface of the body 11 can form a supporting plane 161. The supporting plane 161 formed by multiple rotating shafts 16 allows the sample holder 1 to be stably placed on the belt, thereby adapting to the belt conveyor track and improving the applicability of the sample holder 1.

[0052] To ensure the stability of the sample holder 1's movement within the electromagnetic track 2 and its placement on the belt, at least four pulleys 15 can be installed at the bottom of the main body 11, with each pulley 15 distributed in pairs on either side of the bottom of the main body 11. The four pulleys 15 are arranged in a rectangular pattern, forming a stable rectangular support structure, thus improving the stability of the rolling contact between the pulleys 15 and the electromagnetic track 2. Similarly, the four rectangular pulleys 15 correspond to four rectangularly distributed rotating shafts 16, and the support planes 161 on the four rotating shafts 16 together form a stable rectangular support structure, ensuring stable placement of the sample holder 1 on the belt. It should be noted that the four rotating shafts 16 should be located at the four apex corners of the bottom surface of the main body 11, so that the center of gravity of the sample holder 1 falls as close as possible to the center of the four rotating shafts 16, avoiding the problem of tipping over due to a shift in the center of gravity.

[0053] Furthermore, among the multiple rotating shafts 16 at the bottom of the body 11, their supporting planes 161 are all located on the same plane or on the same horizontal plane, so that the sample holder 1 can fit against the conveying surface of the belt, thereby improving the placement stability of the sample holder 1.

[0054] A frame 13 is provided above the main body 11, and a fixing seat 14 is provided on the frame 13, in which the sampling tube can be placed. Furthermore, multiple spring clips are provided on the outer periphery of the fixing seat 14. After the sampling tube is placed into the fixing seat 14, the sampling tube can be fixed by the spring clip structure to ensure the stability of the sampling tube. Furthermore, the frame 13 can also be an integral structure with the main body 11.

[0055] The pulley 15 located on the upper side of the main body 11 is positioned between the frame 13 and the main body 11, and the corresponding rotating shaft 16 is also positioned between the frame 13 and the main body 11. Furthermore, one end of the rotating shaft 16 is fixed to the frame 13, and the other end is fixed to the top surface of the main body 11, with the pulley 15 rotatably mounted on the rotating shaft 16. A side opening 131 is provided on the frame 13 to allow the pulley 15 to protrude from the side of the main body 11 through the side opening 131, enabling the pulley 15 to roll and abut against the upper part of the electromagnetic track 2.

[0056] Similarly, four pulleys 15 can be provided on the upper side of the body 11, with two pulleys 15 distributed on both sides of the body 11, thus cooperating with the four pulleys 15 on the lower side of the body 11 to achieve a stable movement effect on the upper and lower sides of the body 11. It should be noted that the sample holder 1 and the electromagnetic track 2 in this application only use pulleys 15 for contact, which only plays a role in assisting movement in the left and right directions. In the up and down directions, the sample holder 1 and the electromagnetic track 2 do not contact each other, thereby avoiding contact friction between the sample holder 1 and the electromagnetic track 2.

[0057] In some embodiments, the main body 11 has protruding anti-detachment strips 111 on both sides of the magnet 12. The anti-detachment strips 111 extend along the movement direction of the main body 11. The track frame 22 has an anti-detachment groove 221 that cooperates with the anti-detachment strips 111. The anti-detachment groove 221 is in the same direction as the extension direction of the anti-detachment strips 111. The anti-detachment strips 111 extend into the anti-detachment grooves 221, and the anti-detachment strips 111 and anti-detachment grooves 221 interfere vertically. Thus, the cooperation between the anti-detachment strips 111 and the anti-detachment grooves 221 prevents the sample holder 1 from detaching. When the sample tray 1 is under normal load, it can be suspended at a certain height under the action of the moving magnetic field and the magnet 12. At this time, the anti-detachment strip 111 is set at intervals with the anti-detachment groove 221 in both the vertical and horizontal directions, so that the sample tray 1 can move without contact with the electromagnetic track 2. When the sample tray 1 is overloaded or pressed up and down, causing the sample tray 1 to have an upward or downward tendency, the interference between the anti-detachment strip 111 and the anti-detachment groove 221 can prevent the sample tray 1 from detaching from the electromagnetic track 2.

[0058] On the two opposite sides of the main body 11, there are receiving grooves for accommodating magnets 12. There are pads 17 in the receiving grooves. The pads 17 are located on the side of the corresponding magnet 12 away from the electromagnetic track 2. They play the role of integrating the magnetic field circuit of the magnet 12 and can make the center of gravity of the sample holder 1 move closer to the driving center, making the movement more stable.

[0059] In addition, a permanent magnet 18 is provided at the bottom of the sample holder 1, and a magnetic sensor 23 is provided between the two track frames 22, located below the permanent magnet 18. The magnetic sensor 23 works with the permanent magnet 18 to detect the position and velocity information of the permanent magnet 18. The magnetic sensor 23 can be a magnetoresistive sensor or a Hall element. The permanent magnet 18 and the magnetic sensor 23 adopt a non-contact position detection technology. A multi-pole magnetization pattern is constructed using the permanent magnet 18 (such as neodymium iron boron or samarium cobalt magnets). The change in the direction of the magnetic field is detected by the Hall element or the magnetoresistive sensor, and a sine / cosine electrical signal is output to obtain information such as the position and velocity of the sample holder 1.

[0060] Furthermore, the transmission system also includes a control device that can be connected to the drive coil 21 to control the current state of the drive coil 21, thereby controlling the generation of a moving magnetic field that meets the requirements. Simultaneously, the control device is also connected to the magnetic sensor 23 to accurately acquire the position and velocity information of the sample holder 1. Based on the position and velocity information of the sample holder 1, the control device can achieve closed-loop control of the moving magnetic field.

[0061] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0062] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this application. It should be noted that those skilled in the art can make several improvements and modifications to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of the claims of this application.

Claims

1. An electromagnetic drive transmission system, characterized in that, include: The electromagnetic track (2) includes a track frame (22) located on both sides and a drive coil group disposed on the track frame (22). The drive coil group includes a plurality of drive coils (21) evenly arranged along a preset direction. The drive coil group is used to generate a moving magnetic field. The sample holder (1) is located between the drive coil groups of the two track frames (22). The sample holder (1) is provided with a magnet (12), which moves along the preset direction under the action of the moving magnetic field. Pulleys (15) are provided on both sides of the sample holder (1) facing the track frame (22) to constrain the sample holder (1) between the two track frames (22).

2. The electromagnetic drive transmission system according to claim 1, characterized in that, The magnet (12) is located on two opposite sides of the sample holder (1), and the magnet (12) on both sides of the sample holder (1) corresponds to two rows of drive coil groups respectively. The pulley (15) is located on the two opposite sides of the sample holder (1) with the magnet (12).

3. The electromagnetic drive transmission system according to claim 1, characterized in that, The outer peripheral surface of the pulley (15) protrudes from the side of the sample holder (1), and the sample holder (1) and the track frame (22) are spaced apart.

4. The electromagnetic drive transmission system according to claim 1, characterized in that, Two rows of drive coil groups are symmetrically arranged on both sides of the sample holder (1), and two symmetrical drive coils (21) in the two rows of drive coil groups are connected in series for synchronous excitation.

5. The electromagnetic drive transmission system according to claim 4, characterized in that, In each row of the drive coil group, at least three drive coils (21) are supplied with three-phase alternating current with a phase difference of 120°, and the magnetic field generated by each phase current forms the moving magnetic field with a fixed direction and an amplitude that changes periodically with time.

6. The electromagnetic drive transmission system according to claim 3, characterized in that, The sample holder (1) has protruding anti-detachment strips (111) on both sides of the magnet (12). The anti-detachment strips (111) extend along the movement direction of the sample holder (1). The track frame (22) has an anti-detachment groove (221) extending in the same direction as the anti-detachment strips (111). The anti-detachment strips (111) extend into the anti-detachment grooves (221) and are spaced apart from the anti-detachment grooves (221). The anti-detachment grooves (221) prevent the sample holder (1) from detaching from the electromagnetic track (2) through the anti-detachment strips (111).

7. The electromagnetic drive transmission system according to claim 3, characterized in that, The sample holder (1) is provided with a permanent magnet (18) at the bottom. A magnetic sensor (23) is provided between the two track frames (22) and located on the lower side of the permanent magnet (18). The magnetic sensor (23) cooperates with the permanent magnet (18) to detect the position and speed information of the permanent magnet (18).

8. The electromagnetic drive transmission system according to claim 7, characterized in that, It also includes a control device connected to the drive coil (21) for controlling the current state of the drive coil (21) to generate the moving magnetic field; The control device is connected to the magnetic sensor (23) to obtain the position and velocity information of the permanent magnet (18).

9. The electromagnetic drive transmission system according to claim 1, characterized in that, The sample holder (1) is provided with a fixed card seat (14) on the upper part, and the sampling tube is placed in the fixed card seat (14).

10. The electromagnetic drive transmission system according to claim 1, characterized in that, The pulleys (15) are divided into two groups in the height direction, with the pulleys of each group distributed on both sides of the sample holder (1) facing the electromagnetic track (2).

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