WO2020030024A1

WO2020030024A1 - Linear motor device and magnetic suspension train

Info

Publication number: WO2020030024A1
Application number: PCT/CN2019/099707
Authority: WO
Inventors: 刘子忠; 刘甲朋
Original assignee: 北京九州动脉隧道技术有限公司
Priority date: 2018-08-10
Filing date: 2019-08-08
Publication date: 2020-02-13
Also published as: CN108736592B; CN108736592A

Abstract

A linear motor device and a magnetic suspension train, the linear motor device comprising a rotor (1) and a stator (3); stator windings (2) are wound on the stator (3), an alternating current flowing through the stator windings (2) generates an alternating magnetic field in the stator (3) along the longitudinal direction of the movement, and the alternating magnetic field drives the rotor (1) to move in the longitudinal direction; and the stator (3) comprises a magnetic conductive iron core (302) and a non-magnetic conductive material block (301), and the magnetic conductive iron core (302) and the non-magnetic conductive material block (301) are stacked transversally. By optimizing the structural form of the stator (3) and the rotor (1) of the linear motor, the electromagnet effect between the stator (3) and the rotor (1) is utilized, and without reducing the thrust of the linear motor, the normal attraction force required by the system is generated between the stator (3) and the rotor (1) of the linear motor, improving the reliability of the driving of the motor.

Description

Linear motor device and magnetic levitation train

Technical field

The invention belongs to the technical field of magnetic levitation, and particularly relates to a linear motor device and a magnetic levitation train, and particularly relates to a linear motor with adjustable normal force and a magnetic levitation train with the linear motor with adjustable normal force.

Background technique

With the rapid development of magnetic levitation trains in the high-speed rail transportation industry, the requirements for their driving motors are becoming higher and higher. The motor solutions of countries around the world are mainly focused on two schemes of permanent magnet synchronous and AC asynchronous linear motors. Consumption, maximum speed, etc., permanent magnet linear motors are more and more popular in the industry.

The existing linear motors for magnetic levitation trains are mainly iron-core synchronous linear motors. The normal suction of this motor is too large and cannot be adjusted to become a usable forward force. If iron-free synchronous linear motors are used, The inability to draw suction between the stator and the mover, when the train is heavy, will bring a lot of pressure to the suspension mechanism. At the same time, the coreless structure will cause problems such as large motor current and low efficiency.

Summary of the invention

The purpose of the present invention is to provide a linear motor device and a magnetic levitation train in response to the above-mentioned defects, so as to solve the problem that the conventional iron core linear motor has excessively large normal suction power and is difficult to adjust, while the iron coreless linear motor cannot attract suction and has low efficiency and large current , High energy consumption and low reliability, to achieve the effect of improving efficiency, obtaining a usable normal forward force, reducing current, and saving energy consumption.

In order to achieve the above objective, the technical solution of the present invention is:

A linear motor device includes a mover and a stator, and a stator winding is wound on the stator. The alternating current passed in the stator winding causes the stator to generate an alternating magnetic field in the longitudinal direction of the movement. The alternating magnetic field drives the mover in the longitudinal direction. The stator includes a magnetically permeable core; wherein the stator further includes a non-magnetically permeable material block, and the magnetically permeable core and the non-magnetically permeable material block are laterally stacked.

The solution is further that the magnetically permeable core is horizontally divided into two parts, and the two magnetically permeable cores are located on both sides of the non-magnetically conductive material block.

The solution is further: the non-magnetically conductive material block is divided into two parts, and the two parts of the non-magnetically conductive material block are located on both sides of the magnetically permeable core.

The solution is further that the magnetically permeable material of the magnetically permeable core includes: a magnetically permeable member laminated with a silicon steel sheet of a predetermined thickness according to a set lamination coefficient.

The solution is further: the set thickness is less than or equal to 0.35 mm; and / or, the set lamination factor is greater than or equal to 0.975.

The solution is further: the non-magnetically conductive material block includes: a thermally conductive member made of a thermally conductive material having a set thermal conductivity and non-magnetically permeable.

The solution is further: the mover is a superconducting magnet made of a permanent magnet or a superconducting wire.

Matching the above device, the present invention provides a magnetic levitation train including the linear motor device as described above.

The solution is further that the magnetic levitation train runs in a closed pipeline, and the linear motor device is disposed on the same side as the support position of the train magnetic levitation system or on the opposite side from the support position of the train maglev system.

The solution is further: the stator of the linear motor device is laid along a closed pipeline, the mover is arranged on each carriage of the magnetic levitation train, and the stator windings are continuously arranged in sections to form respective circuits, and the money is laid along the pipeline. A power input device is provided in the stator of the stator segment, and the power input device provided in the segment is connected to the corresponding segmented stator winding in order according to the arrival time of the maglev train.

The solution is further: a gap adjusting device is provided between the mover and the train compartment, and the gap adjusting device is used for dynamically adjusting the gap between the mover and the stator.

The solution is further: the gap adjusting device includes at least a pair of adjusting arms, and the two adjusting arms of the pair of adjusting arms are hinged at one end and open at the other end to form a herringbone structure supported between the mover and the train compartment. The other ends of the two adjustment arms that are opened are hinged to the adjustment block. The two adjustment blocks are set on a support plate. One of the two adjustment blocks is fixedly connected to the support plate. The other adjustment block is provided through the support plate. The slide rail is slidingly connected to the support plate. One adjustment rod is connected to two adjustment blocks in series. A thread segment is provided on the adjustment rod. The adjustment block slidingly connected to the support plate is a nut slider, and the nut slider is meshed with the thread segment. The adjusting rod is rotatably connected to the adjusting block fixedly connected to the support plate. A control motor is connected to the adjusting rod. The rotation of the adjusting rod driven by the control motor causes the nut slider to move forward and backward, and the nut slider moves forward and backward to adjust The opening angles of the two adjusting arms are driven, so that the mover moves up and down to adjust the gap between the mover and the stator.

The solution is further: the support plate is fixedly connected to the mover, the hinged connection ends of the two adjusting arms are used as the force end of the mover to push the train compartment, and a gap distance sensor is provided on the mover.

The solution is further that the gap adjusting device has two pairs of adjusting arms, and the adjusting rod connects the two pairs of adjusting arms in series back and forth.

The solution is further that the gap adjusting device has four pairs of adjusting arms, each two pairs of adjusting arms as a group, the adjusting rod connects the two pairs of adjusting arms of each group back and forth in series, and a supporting plate to which the two adjusting arms are connected They are fixedly connected on both sides of the mover.

The solution is further: the non-magnetically conductive material block is provided with a magnetically permeable core in a tooth portion and / or a yoke portion wound in the stator winding.

The invention optimizes the structure form of the stator and the mover of the linear motor, so that the electromagnet effect between the stator and the mover is more fully used, and the system needs to be generated between the stator and the mover of the linear motor without reducing the thrust of the linear motor. The normal suction force increases the reliability of the motor drive. Without increasing the current and energy consumption, the thrust force is increased accordingly, thereby increasing the efficiency of motor use and saving energy consumption.

Further, the scheme of the present invention balances the system structure by adjusting the magnitude of the normal suction, and the designed normal suction can provide a positive force for the suspension of the vehicle, reducing the weight of the suspension structure; and reducing the current demand in the winding of the linear motor, reducing The heating of the linear motor winding is reduced, the system use efficiency is improved, and the safety and reliability of the vehicle are enhanced.

Therefore, the solution of the present invention optimizes the structural form of the stator and the mover of the linear motor, and makes fuller use of the electromagnet effect between the stator and the mover, so that the normal suction generated between the linear motor stator and the mover can be used by the system. Solve the problems that the existing iron core linear motors have too large normal suction and cannot be used, while ironless linear motors cannot suck and have low efficiency, thereby overcoming the problems of low reliability, low motor efficiency and high energy consumption in the prior art. Defects, to achieve the beneficial effects of high reliability, high motor efficiency and low energy consumption.

Other features and advantages of the present invention will be further explained in the following embodiments, and will become partially obvious from the embodiments, or be understood by implementing the present invention.

The technical solutions of the present invention will be described in further detail below with reference to the drawings and embodiments.

BRIEF DESCRIPTION OF THE DRAWINGS

1 is a schematic side view of a linear motor of a linear motor device according to the present invention;

2 is a schematic diagram of a linear motor stator with a core structure on both sides of the linear motor device of the present invention;

3 is a schematic diagram of a linear motor stator with a linear core structure in the linear motor device of the present invention;

4 is a schematic structural diagram of a magnetic levitation train according to the present invention;

5 is a schematic diagram of the linear motor device and the magnetic levitation system of the present invention not on the same side;

6 is a schematic diagram of a linear motor device and a magnetic levitation system on the upper side of a train according to the present invention;

7 is a schematic view of a linear motor device and a magnetic levitation system of the present invention on the lower side of a train;

8 is a schematic structural diagram of a gap adjusting device provided between a train mover and a stator;

9 is a schematic structural diagram of a connection relationship between two pairs of adjusting arms;

10 is a schematic structural diagram of a connection relationship between four pairs of adjusting arms and a mover;

FIG. 11 is a schematic diagram of a magnetically permeable core provided in a tooth portion and / or a yoke portion of a non-magnetically conductive material block.

detailed description

In order to make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described in combination with specific embodiments of the present invention and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

According to an embodiment of the present invention, a linear motor device is provided. Referring to FIG. 1 to FIG. 3, a schematic structural diagram of an embodiment of a linear motor device according to the present invention is shown. The linear motor device may include a linear motor mover 1, a stator winding 2, and a stator 3. The stator is provided with a magnetically permeable core, and a stator winding is wound on the stator. The alternating current flowing in the stator winding causes the stator to generate an alternating magnetic field in the longitudinal direction of the movement, and the alternating magnetic field drives the mover in the longitudinal direction.

Wherein, the stator also includes a non-magnetic material block, and the magnetically permeable core and the non-magnetic material block are arranged laterally overlapping each other, that is, the lateral width of the stator's magnetic core is smaller than the lateral width of the mover magnet, and the magnetic core is insufficient. The lateral width of the mover magnet is partially filled with a non-magnetically conductive material block and the magnetically permeable core. The stator is a composite structure formed by a combination of a non-magnetically conductive material block 301 (also referred to as a hollow stator) and a magnetically permeable core 302 (or referred to as an iron core stator). On the premise that an alternating current is input to the stator winding, the magnetically conductive core 302 not only provides forward driving force, but also generates upward normal suction.

For example, the alternating current in the middle of the stator winding causes an electromagnetic effect between the stator and the mover. The stator can generate large thrust and normal suction at the same time, and the non-magnetically permeable part only generates thrust. By adjusting the width of the magnetically conductive core 302 Direction thickness, you can adjust the amount of normal force required.

Therefore, by adopting a composite structure formed of a non-magnetically conductive material block 301 and a magnetically permeable core 302 as a stator, the structural form of the linear motor stator and the mover is optimized, so that the electromagnetic effect between the stator and the mover is more fully utilized. Without reducing the thrust of the linear motor, the normal suction required by the system is generated between the linear motor stator and the mover. Correspondingly, without increasing the current and energy consumption, the thrust is increased accordingly, thereby increasing It increases the efficiency of motor use and saves energy consumption. For maglev trains, the increased normal suction can provide positive force to the levitation of the vehicle, thereby reducing the pressure requirements of the levitation system and lightening the levitation structure; and reducing the linear motor windings. The current demand in the system reduces the purchase cost of the motor and controller; reduces the heating of the linear motor windings, optimizes the entire system, improves system use efficiency, and enhances vehicle safety and reliability.

Optionally, the magnitude of the normal suction force can be adjusted by adjusting the proportion of the magnetically permeable core 302 in the composite structure.

For example, the normal suction force can be adjusted by adjusting the proportion of the linear motor with iron core.

As a result, the size of the normal suction force is adjusted through structural adjustment, the system structure is balanced, and the motor performance is improved.

Optionally, in the composite structure, as shown in FIG. 2, the magnetically permeable core 302 is laterally divided into two parts, and the two magnetically permeable cores 302 are located on both sides of the non-magnetically conductive material block 301; Alternatively, as shown in FIG. 3, the non-magnetically conductive material block 301 is divided into two parts, and the two parts of the non-magnetically conductive material block 301 are located on both sides of the magnetically permeable core 302.

For example: iron core structure can be located on both sides or in the middle of the motor or any position. If there is an iron core structure, it can be located on both sides or in the middle of the motor or at any position.

For example: By adjusting the stator of the motor, it is changed to a composite structure with and without iron cores. Figures 2 and 3 show two types of composite structures, respectively. The core linear motor structure provides forward driving force and upward normal suction; the coil is fixed with non-magnetic material located at the middle or two sides respectively, and only provides forward driving force. By adjusting the proportion of magnetically conductive material, the straight line is adjusted. The normal suction of the motor.

Therefore, by adjusting the distribution mode of the magnetically permeable core and the non-magnetically conductive material block in the composite structure, it can meet a variety of application requirements, and has good flexibility and high reliability.

Optionally, the magnetically permeable material of the magnetically permeable core 302 may include: a magnetically permeable member laminated with a silicon steel sheet of a predetermined thickness according to a set lamination coefficient.

Preferably, the set thickness is less than or equal to 0.35 mm; and / or, the set lamination factor is greater than or equal to 0.975.

For example: the magnetically permeable material should be laminated using silicon steel sheets not thicker than 0.35mm, and the laminated coefficient should not be less than 0.975 to reduce the eddy current loss during operation.

Therefore, the fixed part of the stator winding with an iron core is made of a magnetically conductive material, preferably a silicon steel sheet, which can reduce eddy current loss.

Optionally, the non-magnetically conductive material block 301 may include a thermally conductive member made of a thermally conductive material having a set thermal conductivity and non-magnetically conductive.

For example: the fixed part of the ironless stator winding is made of non-magnetic material.

For example: the non-magnetically conductive part in the middle uses materials with better thermal conductivity as much as possible.

Therefore, by using a thermally conductive material, the thermal conductivity can be improved, and the reliability and safety of motor operation can be improved.

Optionally, the stator winding 2, the non-magnetically conductive material block 301, and the magnetically conductive core 302 are fixed to each other.

And, the mover is a superconducting magnet formed by a permanent magnet or a superconducting wire surrounding the magnet.

For example: during the actual installation and use, the above three parts of the stator should be fixed to avoid vibration and noise.

Therefore, through fixed installation, noise can be reduced or even avoided, and the user experience is improved.

After a large number of tests and verifications, the technical solution of this embodiment is adopted, and the structure of the linear motor stator and the mover is optimized, and the electromagnet effect between the stator and the mover is fully utilized. The linear motor is made without reducing the thrust of the linear motor. The normal suction required by the system is generated between the stator and the mover to improve the reliability of the motor drive. Without increasing the current and energy consumption, the thrust force is increased accordingly, thereby increasing the efficiency of the motor and saving energy. Consuming.

The embodiment also provides a maglev train corresponding to the linear motor device. As shown in FIG. 4, the magnetic levitation train lifts the train car 5 from the laid magnetic levitation track 6 by the magnetic levitation system 4. At the same time, the magnetic levitation train also includes the linear motor device described above. Both magnetic levitation systems and magnetic levitation orbits are prior art.

In an optional implementation manner, the solution of this embodiment is to optimize the structure of the stator and the mover of the linear motor, so that the electromagnet effect between the stator and the mover is more fully used, and without reducing the thrust of the linear motor, The normal suction required by the system is generated between the linear motor stator and the mover, and the size of the normal suction can be adjusted through the structural adjustment to balance the system structure. Correspondingly, under the premise of not increasing the current or increasing the energy consumption, the thrust force is increased accordingly, thereby increasing the efficiency of motor use and saving energy consumption. For maglev trains, the increased normal suction can provide positive force to the levitation of the vehicle, thereby reducing the pressure requirements of the levitation system and lightening the levitation structure; and reducing the current demand in the windings of the linear motor, thereby reducing the motor And controller purchase costs; reducing the heating of linear motor windings, optimizing the entire system, improving system efficiency, and enhancing vehicle safety and reliability.

As shown in FIGS. 4, 5, 6 and 7, the maglev train runs in a closed pipe 7, and the linear motor device is disposed on the same side as the support position of the train maglev system 4 or on the same side as the train maglev system. Support position opposite.

In FIG. 5, the magnetic suspension system 4 supports the train carriage 5 on the lower side, and the linear motor device is arranged on the top of the train carriage 5 and is not in the same measuring direction as the magnetic suspension system; that is, the motor is on and suspended below, and the linear motor is arranged on the vehicle body. Above, it provides upward normal suction; the suspension module is arranged below the vehicle body to provide upward suspension repulsion; this structure of suction and repulsion is more in line with the mechanical structure and effectively achieves system balance with the vehicle's gravity. The structure is simpler, more stable and reliable.

In FIG. 6, the magnetic levitation system 4 supports the train carriage 5 on the upper side, and the linear motor device is arranged in the same direction on the top of the train carriage 5; that is: the linear motor and the suspension are both above; the linear motor and the levitation module are both arranged on the Above the car body, the linear motor provides upward normal suction, and the levitation module provides upward levitation repulsion; this structure is beneficial to both the motor and the levitation module being designed on the upper walking mechanism, which has a more compact structure.

In FIG. 7, the magnetic levitation system 4 supports the train carriage 5 on the lower side, and the linear motor device is arranged in the same direction of the lower part of the train carriage 5; that is, the linear motor and the suspension are both below; the vehicle where the linear motor and the suspension module are unknown Below the body, the linear motor needs to be designed as an inverted structure, the linear motor provides upward normal suction, and the levitation module provides upward levitation repulsion. This structure is more in line with the traditional form of force in the traffic situation.

Wherein, the stator 3 of the linear motor device is laid along a closed pipeline, the mover 1 is arranged on each carriage of the magnetic levitation train, and the stator winding 2 is continuously arranged in sections to form respective circuits, for example: 10 meters , 20 meters or 50 meters. Power supply input devices are provided in sections of the stator laid along the pipeline, and the power input devices provided in sections are sequentially connected to the power supply to the corresponding segmented stator windings according to the arrival time of the maglev train.

In the embodiment, a gap adjusting device is provided between the mover and the train compartment, and the gap adjusting device is used to dynamically adjust the gap between the mover and the stator.

The gap adjustment device may have various structural forms, such as a screw adjustment, a hydraulic adjustment, an air spring adjustment, or an electromagnetic adjustment; the preferred solution used in this embodiment is a screw adjustment, and its specific structure is as follows:

As shown in FIG. 8, the gap adjusting device includes at least a pair of adjusting arms, and two adjusting

arms

8 and 9 of the pair of adjusting arms are hinged at one end and open at the other end to form a herringbone structure supported on the mover and the train compartment. Between the two adjusting

arms

8 and 9 one end is hinged as the receiving end 10, and the other two ends of the opened two adjusting arms are hinged to the adjusting blocks 11 and 12, respectively, and the two adjusting blocks are arranged on a support plate 13. , One of the two adjustment blocks is fixedly connected to the support plate, such as the adjustment block 12 in FIG. 8, and the other adjustment block 11 is slidably connected to the support plate through a slideway 13-1 provided on the support plate, and an adjustment rod 14 connects two adjusting

blocks

11 and 12 in series, and a thread segment 14-1 is provided on the adjusting rod. The adjusting block 11 slidingly connected to the support plate is a nut slider, and the nut slider is meshed with the thread segment. The adjusting rod The rotatable adjustment block 12 fixedly connected to the support plate is positioned and connected, that is, the adjustment block 12 axially positions the adjustment rod and cannot be moved forward and backward, but can be rotated in the adjustment block 12; a control motor 15 is connected to the adjustment rod , The adjusting lever is controlled by the control The rotation is driven by the fact that the adjusting rod is not allowed to move axially, so that the nut slider can be moved back and forth. The nut slider that moves forward and backward adjusts the opening angle of the two adjusting arms, and then drives the mover to adjust the movement. The gap between the stator and the stator.

In the embodiment: as a preferred solution, the support plate 13 is fixedly connected to the mover 1, and the hinged connection ends of the two adjusting arms are used as the force end of the mover, that is, the force end 10 is pushed to connect the train compartment; The adjustment control, as shown in FIG. 9, is provided with a gap distance sensor 16 on the mover. In this way, the adjustment controller can drive the control motor 15 to dynamically adjust the distance between the mover and the stator according to the signal of the gap distance sensor during operation. gap.

Of course, it can also be provided in reverse, the support plate 13 is connected to the carriage, and the force receiving end 10 is connected to the mover 1.

As shown in FIG. 9, the gap adjusting device may be provided with two pairs of adjusting arms, and the adjusting lever connects the two pairs of adjusting arms in series back and forth. The structure of the two pairs of adjusting arms is the same and is adjusted by a control motor 15.

As a further preferred solution: as shown in FIG. 10, the gap adjusting device has four pairs of adjusting arms, each two pairs of adjusting arms as a group, and the adjusting rod connects the two pairs of adjusting arms of each group in series back and forth, The support plates connected by the two sets of adjusting arms are fixedly connected to both sides of the mover.

Wherein, when the linear motor device is arranged on the top of the carriage of a magnetic levitation train, in order to increase the normal suction force, as shown in FIG. 11, the teeth 301-1 and / or yoke portions of the non-magnetic material block are wound on the stator windings. Circumventing the coil 2 in 301-2 are provided with magnetically

permeable cores

17 and 18.

In summary, those skilled in the art can easily understand that, under the premise of no conflict, the above-mentioned advantageous methods can be freely combined and superimposed.

The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

A linear motor device includes a mover (1) and a stator (3), and a stator winding (2) is wound on the stator, and an alternating current passed through the stator winding (2) causes the stator to generate an alternating magnetic field along a longitudinal direction of the movement. An alternating magnetic field drives the mover in a longitudinal direction, and the stator (3) includes a magnetically permeable core (302); characterized in that the stator further includes a non-magnetically conductive material block (301), a magnetically permeable core and a non-conductive The blocks of magnetic material are arranged side by side.
The device according to claim 1, wherein the magnetically permeable core (302) is laterally divided into two parts, and the two magnetically permeable cores (302) are located on both sides of the non-magnetically conductive material block (301).
The device according to claim 1, characterized in that the non-magnetically conductive material block (301) is divided into two parts, and the two parts of the non-magnetically conductive material block are located on both sides of the magnetically permeable core (302).
The device according to claim 1 or 2, or 3, characterized in that the magnetically permeable material of the magnetically permeable core (302) comprises: a silicon steel sheet with a set thickness is laminated by a set lamination coefficient Magnetically permeable piece.
The device according to claim 4, wherein the set thickness is less than or equal to 0.35 mm; and / or the set lamination factor is greater than or equal to 0.975.
The device according to claim 1, wherein the non-magnetically conductive material block (301) comprises: a thermally conductive member made of a thermally conductive material having a set thermal conductivity and non-magnetically permeable.
The device according to claim 1, wherein the mover (1) is a superconducting magnet made of a permanent magnet or a superconducting wire.
A magnetic levitation train, comprising: the linear motor device according to any one of claims 1-7.
The maglev train according to claim 8, characterized in that the maglev train runs in a closed pipe (7), and the linear motor device is arranged on the same side as the supporting position of the train maglev system (4) or on the same side as the support position of the train maglev system (4) The magnetic levitation system (4) of the train is supported on the opposite side.
The magnetic levitation train according to claim 9, characterized in that the stator of the linear motor device is laid in full along a closed pipeline, the mover is arranged on each carriage (5) of the magnetic levitation train, and the stator windings are continuous The sections are arranged to form their own circuits, and the stators laid along the pipeline are provided with power input devices in sections. The power input devices provided in sections are connected to the power supply to the corresponding segmented stator windings according to the time of arrival of the maglev train.
The maglev train according to claim 10, wherein a gap adjusting device is provided between the mover and the train compartment, and the gap adjusting device is used to dynamically adjust the distance between the mover (1) and the stator (3). gap.
The maglev train according to claim 11, wherein the gap adjusting device comprises at least a pair of adjusting arms, and two adjusting arms (8) (9) of the pair of adjusting arms are hinged at one end and open at the other end to form a person. The word structure is supported between the mover (1) and the train compartment (5). The other ends of the two open adjustment arms are hinged to the adjustment block (11) (12), and the two adjustment blocks are arranged on one support. On the plate (13), one of the two adjustment blocks (12) is fixedly connected to the support plate, and the other adjustment block (11) is connected to the support plate (13) through a slideway (13-1) provided on the support plate. Sliding connection, one adjusting rod (14) is connected in series with two adjusting blocks (11) (12), a threaded section (14-1) is provided on the adjusting rod (14), and the sliding connection with the support plate (13) The adjusting block (11) is a nut slider, the nut slider is meshed with the threaded section, the adjusting rod (14) is rotatable and the adjusting block is fixedly connected to the support plate, and a control motor (15) is connected to the adjusting rod ( 14), the rotation of the adjusting rod (14) driven by the control motor (15) moves the nut slider forward and backward, and the nut slider moving forward and backward adjusts two adjustments The opening angle of the joint arm (8) (9) drives the mover to move up and down to adjust the gap between the mover (1) and the stator (3).
The maglev train according to claim 11, characterized in that the support plate (13) is fixedly connected to the mover (1), and one end of the hinge connection of the two adjusting arms (8) (9) is used as the force end of the mover. The train compartment is pushed and connected, and a gap distance sensor (16) is provided on the mover (1).
The magnetic levitation train according to claim 13, wherein the gap adjusting device has two pairs of adjusting arms, and the adjusting rod (14) connects the two pairs of adjusting arms in series back and forth.
The magnetic levitation train according to claim 13, wherein the gap adjusting device has four pairs of adjusting arms, and each two pairs of adjusting arms are used as a group, and the adjusting rod connects the two pairs of adjusting arms of each group forward and backward in series. Together, the two support plates (13) connected to the two adjusting arms are fixedly connected to the two sides of the mover (1), respectively.
The magnetic levitation train according to claim 9, characterized in that the non-magnetically conductive material block (301) is provided with a guide in a tooth portion (301-1) and / or a yoke portion (301-2) wound in a stator winding. Magnet core (17) (18).