An electromagnetically driven shield machine rotation movement system and application method

Abstract

The present invention relates to the technical field of shield tunnel engineering, and more specifically to an electromagnetically driven shield machine rotation and movement system and application method. The system comprises a bracket mechanism, a permanent magnet, and an electromagnetic guide assembly; the electromagnetic guide assembly comprises a track, a vertical plate, and a plurality of induction magnets; the track is detachably disposed within a receiving shaft; vertical plates are detachably disposed on both outer sides of the track in the longitudinal direction; a plurality of induction magnets are detachably disposed on each vertical plate at equal intervals along the longitudinal direction of the track; the bracket mechanism is movably disposed on the track; a plurality of permanent magnets are detachably disposed at equal intervals on both sides of the bracket mechanism in the direction of travel; the magnetic poles of the induction magnets facing the same side of each adjacent permanent magnet are opposite poles; the magnetic poles of the permanent magnets facing the same side of each adjacent induction magnet are opposite poles. The method employing this system can safely, efficiently, and cost-effectively complete the rotation and movement of the shield machine.

Description

Technical Field

[0001] The present invention relates to the technical field of shield tunnel engineering, and in particular to an electromagnetically driven shield machine rotation and movement system and an application method. Background Art

[0002] Urban rail transit projects are typically carried out in cities, where shield tunneling sites are limited. Due to space constraints, a single shield machine is typically used to construct one tunnel. After the machine exits the tunnel, the shield is disassembled and moved in sections using a large crane to the starting bracket of another tunnel. After the shield is reassembled and debugged, initial excavation can begin. This shield machine transfer scheme presents a number of challenges: 1) Low construction efficiency: Disassembly, hoisting, assembly, and debugging of the shield machine typically require at least two months; 2) High safety risks: Hoisting the shield machine requires a large crane, which carries significant safety risks; 3) High construction costs: crane rental fees are high, resulting in long construction periods and high costs. Therefore, research on shield machine rotation and relocation has significant social and economic benefits.

[0003] At present, the research status and problems of shield machine rotation and movement technology by industry insiders are roughly as follows: 1) Using hydraulic cylinders to push the shield machine to achieve the rotation and movement of the shield machine; this solution requires the temporary installation of hydraulic cylinders, and the addition of a reaction device at the rear end of the hydraulic cylinder; in addition, the position of the reaction device and the length of the hydraulic cylinder need to be changed in real time when the shield machine rotates, which greatly reduces the construction efficiency; 2) Using electric carts to tow the shield machine to achieve the rotation and movement of the shield machine; due to the large mass of the shield machine, using electric carts to tow it requires very large traction force, huge battery consumption, high cost, and the narrow clearance size of the receiving shaft. During actual construction, there is no space for the electric cart to tow the shield machine to turn; 3) Installing a motor on the bracket to drive the shield machine to move; due to the small size of the bracket, it is not convenient to install the motor, and the problem of shield machine steering cannot be solved; in addition, the motor power is too large, the construction safety risk is high, and the cost is high.

[0004] In summary, it is necessary to provide an electromagnetically driven shield machine rotation and movement system and application method to solve the problems of low construction efficiency, high construction safety risks and high costs in existing shield machine rotation and movement technologies. Summary of the Invention

[0005] The present invention aims to provide an electromagnetically driven shield machine rotation and movement system and application method. The specific technical solutions are as follows:

[0006] In a first aspect, the present invention provides an electromagnetically driven shield machine rotation and movement system, comprising a bracket mechanism, a permanent magnet, and an electromagnetic guide assembly;

[0007] The electromagnetic guide assembly includes a track, a vertical plate, and a plurality of induction magnets; the track is detachably mounted in a receiving shaft and is connected to the right and left lines of the shield tunnel; the vertical plates are detachably mounted on both outer sides of the track in the longitudinal direction; a plurality of induction magnets are detachably mounted on each vertical plate at equal intervals along the longitudinal direction of the track; all of the induction magnets are connected in parallel to an AC power supply in different regions through corresponding switches, and the induction magnets in each region are connected in series;

[0008] The bracket mechanism is movably arranged on the track and is used to carry the shield machine;

[0009] There are multiple permanent magnets, and multiple permanent magnets are detachably arranged at equal intervals on both sides of the direction of travel of the bracket mechanism; the magnetic poles of the induction magnets on the same side of each adjacent permanent magnet are opposite poles; the magnetic poles of the permanent magnets on the same side of each adjacent induction magnet are opposite poles; the distance between the permanent magnetic surface formed by each permanent magnet and the induction magnetic surface formed by each induction magnet on the same side is 1~2m. In actual engineering, the empirical formula can be referred to. y 1=-300 x 1+700 to obtain the spacing between the permanent magnet and the induction magnet, where y 1 is the mass of the shield body of the shield machine, x 1 is the distance between the permanent magnet and the induction magnet.

[0010] Optionally, the distance between each two adjacent induction magnets is 0.5 to 1.5 meters. In actual engineering, the empirical formula can be used as a reference. y 2=-280 x 2+800 to obtain the spacing between adjacent inductive magnets, where y 2 is the mass of the shield machine shield, x 2 is the distance between adjacent induction magnets.

[0011] Optionally, the distance between each two adjacent permanent magnets is 0.5-1.5 m. In actual engineering, the empirical formula can be used as a reference. y 3=-280 x 3+800 to obtain the spacing between adjacent permanent magnets, where y 3 is the mass of the shield body of the shield machine, x 3 is the distance between adjacent permanent magnets.

[0012] Optionally, the dimensions of the permanent magnet are: 0.8-1.6 m in length, 0.5-1 m in width, and 0.2-0.8 m in thickness.

[0013] Optionally, the electric induction magnet includes an electromagnet and an electromagnetic coil; the electromagnetic coil is wound around the electromagnet and connected to the AC power supply.

[0014] Optionally, the dimensions of the electromagnet are: 0.8-1.6 m in length, 0.8-1.4 m in width, and 0.5-1.2 m in thickness.

[0015] Optionally, the track is a U-shaped structure; the vertical plate is a U-shaped plate, and is adapted to fit the U-shaped structure of the track;

[0016] In the direction from the right line of the shield tunnel to the left line of the shield tunnel, a first straight area, a first arc area, a second straight area, a second arc area and a third straight area are sequentially arranged on the U-shaped plate according to its U-shaped structure; each of the electric induction magnets located in the first straight area is connected in series with a first conductor; each of the electric induction magnets located in the first arc area is connected in series with a second conductor; each of the electric induction magnets located in the second straight area is connected in series with a third conductor; each of the electric induction magnets located in the second arc area is connected in series with a fourth conductor; each of the electric induction magnets located in the third straight area is connected in series with a fifth conductor; the first conductor, the second conductor, the third conductor, the fourth conductor and the fifth conductor are respectively connected in parallel with the AC power supply through switches.

[0017] Optionally, the bracket mechanism includes a bracket body and an extension bracket; the extension bracket is arranged at the front end of the bracket body in the direction of travel; the extension bracket is an arc-shaped curved structure on both sides of the travel direction, and its curvature is adapted to the curvature of the U-shaped structure bending part of the track; a plurality of permanent magnets are arranged on both sides of the bracket body and the extension bracket.

[0018] Optionally, the bracket mechanism further includes an anti-overturning support block; the anti-overturning support block is arranged on the bracket body and connected to the shield machine.

[0019] Optionally, the bracket mechanism further includes a track wheel adapted to the track; the track wheel is a track wheel with a brake; there are multiple track wheels, which are evenly distributed at the bottom of the bracket body.

[0020] Optionally, the electromagnetically driven shield machine rotation and movement system further includes a main controller; the main controller includes a PLC controller, which is connected to the AC power supply and each of the switches.

[0021] In a second aspect, the present invention provides an application method of the electromagnetically driven shield machine rotation and movement system, comprising:

[0022] Step S1, hoisting the bracket mechanism onto the track in the receiving shaft near the right-line entrance of the shield tunnel, and at the same time, adjusting the bracket mechanism to an initial state, that is, adjusting the permanent magnets on both sides of the bracket mechanism to a misaligned state with the electric induction magnets on the two corresponding vertical plates; introducing the shield machine after the right-line operation of the shield tunnel is completed onto the bracket mechanism under the action of the rear supporting trolley, and disconnecting the pipes and cables connected to the shield machine;

[0023] Step S2: First, the PLC controller closes the switch on the first conductor to pass alternating current through each of the induction magnets within the first linear region to generate an alternating magnetic field; in an initial misaligned state, the magnetic forces of opposite poles between the induction magnets and the permanent magnets are combined to form a combined force to pull the bracket mechanism to carry the shield machine on the track;

[0024] Secondly, the PLC controller closes the switch on the second conductor to supply alternating current to each of the induction magnets within the first arc-shaped area to generate an alternating magnetic field, continuously generating a combined force to pull the bracket mechanism to carry the shield machine on the track, thereby completing the first rotation of the shield machine;

[0025] Subsequently, the PLC controller closes the switch on the third conductor to supply alternating current to each of the induction magnets within the second linear region to generate an alternating magnetic field, thereby continuously generating a combined force to pull the bracket mechanism to carry the shield machine on the track; wherein, when the PLC controller closes the switch on the third conductor, the switches on the first conductor and the second conductor are opened;

[0026] Then, the switch on the fourth wire is closed by the PLC controller to Two arcs Alternating current is supplied to each of the inductive magnets in the region to generate an alternating magnetic field, which continuously forms a combined force to pull the bracket mechanism to carry the shield machine on the track, thereby completing the second rotation of the shield machine;

[0027] Finally, the PLC controller closes the switch on the fifth conductor to supply alternating current to each of the induction magnets within the third linear region to generate an alternating magnetic field, thereby continuously generating a combined force to pull the bracket mechanism to carry the shield machine on the track; wherein, when the PLC controller closes the switch on the fifth conductor, the switch on the third conductor is opened;

[0028] When the bracket mechanism carries the shield machine on the track to the receiving shaft near the left-line entrance of the shield tunnel, the PLC controller disconnects the switch on the fourth wire and the switch on the fifth wire;

[0029] When the shield machine completes the rotation movement along with the bracket mechanism, the PLC controller controls the magnitude of the alternating current connected to each of the induction magnets by the AC power supply, thereby controlling the speed of the shield machine's rotation movement.

[0030] The application of the technical solution of the present invention has at least the following beneficial effects:

[0031] (1) The electromagnetically driven shield machine rotation and movement system provided by the present invention can solve the problems of low construction efficiency, high construction safety risks and high costs in the existing shield machine rotation and movement technology. Specifically, the electromagnetically driven shield machine rotation and movement system provided by the present invention is provided by arranging a detachable track, an induction magnet and a permanent magnet in the receiving well, and the magnetic poles of the induction magnets facing the same side of each adjacent two permanent magnets are opposite poles, and the magnetic poles of the permanent magnets facing the same side of each adjacent two induction magnets are opposite poles, and the distance between the permanent magnetic surface surrounded by each permanent magnet and the induction magnetic surface surrounded by each induction magnet on the same side is 1~2m. With the help of the magnetic force of the opposite poles between the induction magnet and the permanent magnet, a combined force can be formed to pull the bracket mechanism to carry the shield machine on the track, thereby completing the shield machine rotation and movement operation, which not only The renovation effort is minimal, and the working hours are significantly shortened to 2.5 days, significantly improving construction efficiency compared to traditional methods. Both the track and the induction magnet are removable. In practical applications, the track and induction magnets for the front section (such as the first straight section, the first curved section, and the second straight section) can be installed first. When the bracket carrying the shield machine reaches the end of the front section, the track and induction magnets for the front section are removed and subsequently laid on the rear section (such as the second curved section and the third straight section). This allows the bracket carrying the shield machine to complete the rotation and movement operation at a low cost. Furthermore, the system does not require a large crane, which not only saves rental fees and reduces costs, but also fully ensures construction safety. Furthermore, the track, induction magnets, and permanent magnets used in this system are all recyclable, achieving green construction and low-carbon sustainable development for urban rail projects.

[0032] (2) The present invention provides an application method of an electromagnetically driven shield machine rotation and movement system, which can complete the rotation and movement operation of the shield machine safely, efficiently and at a low cost. Specifically, in step S1, the bracket mechanism is first adjusted to the initial state, that is, adjusted to a state where the permanent magnets on both sides of the bracket mechanism and the induction magnets on the two corresponding vertical plates are misaligned; in step S2, the switches on the first to fifth conductors are closed in sequence by the PLC controller, and alternating current is successively passed through the induction magnets in the first straight line area to the third straight line area to generate an alternating magnetic field. With the help of the magnetic force of the opposite poles between the induction magnets and the permanent magnets, a combined force can be formed to pull the bracket mechanism to carry the shield machine on the track to complete the rotation and movement operation.

[0033] In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0035] Figure 1 1 is a schematic top perspective structural diagram of an electromagnetically driven shield machine rotation and movement system according to an embodiment (the direction of the black arrow in the figure indicates the direction of travel of the bracket mechanism);

[0036] Figure 2 1 is a simplified schematic diagram of a top perspective structure of an electromagnetically driven shield machine rotation and movement system according to an embodiment (the direction of the black arrow in the figure indicates the direction of travel of the bracket mechanism);

[0037] Figure 3 1 is a schematic diagram of the principle of magnetic force when an electromagnetically driven shield machine rotation and movement system is used in an embodiment;

[0038] Among them, 1. Bracket mechanism, 1.1. Bracket body, 1.2. Extension bracket, 2. Permanent magnet, 3. Track, 4. Vertical plate, 5. Induction magnet, 6. First straight area, 7. First arc area, 8. Second straight area, A. Shield machine, B. Right line of shield tunnel, C. Left line of shield tunnel. DETAILED DESCRIPTION

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention are within the scope of protection of the present invention. Example

[0040] See also Figure 1-Figure 3 , an electromagnetically driven shield machine rotation and movement system, comprising a bracket mechanism 1, a permanent magnet 2 and an electromagnetic guide assembly;

[0041] The electromagnetic guide assembly includes a track 3, a vertical plate 4 (specifically, a steel plate), and a plurality of induction magnets 5. The track 3 is detachably mounted in a receiving shaft and is connected to the right line B and the left line C of the shield tunnel. The vertical plates 4 are detachably mounted on both outer sides of the track 3 in the longitudinal direction. A plurality of induction magnets 5 are detachably mounted on each vertical plate 4 at equal intervals along the longitudinal direction of the track 3. All of the induction magnets 5 are connected in parallel to an AC power source (not shown) via corresponding switches (not shown in the figure) in different regions, and the induction magnets 5 in each region are connected in series, facilitating regional control of the on / off current in the induction magnets 5, thereby achieving energy saving.

[0042] The bracket mechanism 1 is movably arranged on the track 3 for carrying the shield machine A;

[0043] There are multiple permanent magnets 2 (the dimensions of the permanent magnets 2 are: 1.2m in length, 0.8m in width, and 0.5m in thickness), and multiple permanent magnets 2 are detachably arranged at equal intervals on both sides of the bracket mechanism 1 in the direction of travel; the magnetic poles of the electric induction magnets 5 facing the same side of each adjacent two permanent magnets 2 are opposite poles (i.e., the N pole is adjacent to the S pole or the S pole is adjacent to the N pole); the magnetic poles of the permanent magnets 2 facing the same side of each adjacent two electric induction magnets 5 are opposite poles (i.e., the N pole is adjacent to the S pole or the S pole is adjacent to the N pole); the distance between the permanent magnetic surface formed by each permanent magnet 2 and the induction magnetic surface formed by each electric induction magnet 5 on the same side is 1.5m, ensuring that the magnetic force of the opposite poles can be gathered into a combined force to pull the bracket mechanism 1 to carry the shield machine A on the track 3 to complete the rotation and movement operation.

[0044] The distance between each two adjacent electric induction magnets 5 is 1 m, ensuring that each electric induction magnet 5 provides an appropriate magnetic force to the permanent magnet 2 .

[0045] The distance between each adjacent two permanent magnets 2 is 1 m, ensuring that the permanent magnets 2 can form a combined force under the magnetic force of the electric induction magnets 5 to pull the bracket mechanism 1 to carry the shield machine A on the track 3 to complete the rotation and movement operation.

[0046] The electric induction magnet 5 includes an electromagnet (the dimensions of the electromagnet are: 1.2 m in length, 1.1 m in width, and 0.8 m in thickness) and an electromagnetic coil; the electromagnetic coil is wound around the electromagnet and connected to the AC power supply.

[0047] The track 3 is a U-shaped structure; the vertical plate 4 is a U-shaped plate, and is adapted to the U-shaped structure of the track 3;

[0048] In the direction from the right line B of the shield tunnel to the left line C of the shield tunnel, a first straight area 6, a first arc area 7, a second straight area 8, a second arc area and a third straight area are sequentially arranged on the U-shaped plate according to its U-shaped structure; each of the electric induction magnets 5 located in the first straight area 6 (specifically, the number of the electric induction magnets 5 on each of the U-shaped plates in the first straight area 6 is 12) is connected in series with a first conductive wire (not shown in the figure); each of the electric induction magnets 5 located in the first arc area 7 (specifically, there are 4 electric induction magnets 5 on the U-shaped plate near the inner side of the track 3 in the first arc area 7, and there are 19 electric induction magnets 5 on the U-shaped plate near the outer side of the track 3) is connected in series with a second conductive wire (not shown in the figure); each of the electric induction magnets located in the second straight area 8 is connected in series with a second conductive wire (not shown in the figure); 5 (specifically, the number of the induction magnets 5 on each U-shaped plate in the second straight area 8 is 4) are all connected in series with a third wire (not shown in the figure); the induction magnets 5 located in the second arc-shaped area (specifically, there are 4 induction magnets 5 on the U-shaped plates close to the inner side of the track 3 in the second arc-shaped area, and there are 19 induction magnets 5 on the U-shaped plates close to the outer side of the track 3) are all connected in series with a fourth wire (not shown in the figure); the induction magnets 5 located in the third straight area (specifically, there are 12 induction magnets 5 on each U-shaped plate in the third straight area) are all connected in series with a fifth wire (not shown in the figure); the first wire, the second wire, the third wire, the fourth wire, and the fifth wire are respectively connected in parallel with the AC power supply through switches.

[0049] The bracket mechanism 1 includes a bracket body 1.1 and an extension bracket 1.2; the extension bracket 1.2 is arranged at the front end of the bracket body 1.1 in the direction of travel; the extension bracket 1.2 is an arc-shaped curved structure on both sides of the direction of travel, and its curvature is adapted to the curvature of the U-shaped structure of the track 3. A plurality of permanent magnets 2 are arranged on both sides of the bracket body 1.1 and the extension bracket 1.2. Specifically, 10 permanent magnets 2 are arranged on both sides of the bracket body 1.1, and 3 permanent magnets 2 are arranged on both sides of the extension bracket 1.2. The permanent magnets 2 are arranged on the extension bracket 1.2 to increase the magnetic force of the bracket mechanism 1 when passing through the first arc area 7 and the second arc area.

[0050] The bracket mechanism 1 further includes an anti-overturning support block (not shown in the figure); the anti-overturning support block is arranged on the bracket body 1.1 and is connected to the shield machine A (specifically, welded).

[0051] The bracket mechanism 1 also includes track wheels adapted to the track 3; the track wheels are track wheels with brakes, and the use of brakes facilitates timely braking of the track wheels; there are four track wheels, which are evenly distributed at the bottom of the bracket body 1.1.

[0052] The electromagnetic driven shield machine rotation and movement system further includes a main controller (not shown in the figure); the main controller is a PLC controller, which is connected to the AC power supply and each of the switches.

[0053] See also Figure 3 The application method of the electromagnetic driven shield machine rotation and movement system is as follows:

[0054] Step S1, hoisting the bracket mechanism 1 onto the track 3 in the receiving shaft near the entrance of the right line B of the shield tunnel, and at the same time, adjusting the bracket mechanism 1 to an initial state, that is, adjusting the permanent magnets 2 on both sides of the bracket mechanism 1 to a misaligned state between the electric induction magnets 5 on the two corresponding vertical plates 4; introducing the shield machine A after the operation on the right line B of the shield tunnel is completed onto the bracket mechanism 1 under the action of the rear supporting trolley, and disconnecting the pipes and cables connected to the shield machine A;

[0055] Step S2: First, the PLC controller closes the switch on the first conductor to supply alternating current to each of the induction magnets 5 within the first linear region 6 to generate an alternating magnetic field. In the initial misaligned state, the magnetic forces of opposite poles between the induction magnets 5 and the permanent magnets 2 are combined to form a combined force to pull the bracket mechanism 1 carrying the shield machine A along the track 3.

[0056] Next, the PLC controller closes the switch on the second conductor to supply alternating current to each of the induction magnets 5 within the first arc-shaped area 7 to generate an alternating magnetic field, which continuously forms a combined force to pull the bracket mechanism 1 carrying the shield machine A along the track 3, thereby completing the first rotation of the shield machine A.

[0057] Subsequently, the PLC controller closes the switch on the third conductor to supply alternating current to each of the induction magnets 5 within the second linear region 8 to generate an alternating magnetic field, thereby continuously generating a combined force to pull the bracket mechanism 1 carrying the shield machine A along the track 3. When the PLC controller closes the switch on the third conductor, the switches on the first conductor and the second conductor are opened.

[0058] Then, the PLC controller closes the switch on the fourth wire to supply alternating current to each of the induction magnets 5 within the second arc-shaped area to generate an alternating magnetic field, which continuously forms a combined force to pull the bracket mechanism 1 carrying the shield machine A along the track 3, thereby completing the second rotation of the shield machine A.

[0059] Finally, the PLC controller closes the switch on the fifth conductor to supply alternating current to each of the induction magnets 5 within the third linear region to generate an alternating magnetic field, thereby continuously generating a combined force to pull the bracket mechanism 1 carrying the shield machine A on the track 3. When the PLC controller closes the switch on the fifth conductor, the switch on the third conductor is opened.

[0060] When the bracket mechanism 1 carries the shield machine A on the track 3 to the receiving shaft near the left line C entrance of the shield tunnel, the PLC controller disconnects the switch on the fourth wire and the switch on the fifth wire;

[0061] When the shield machine A completes the rotation movement along with the bracket mechanism 1 , the PLC controller controls the magnitude of the alternating current connected to each of the induction magnets 5 by the AC power supply, thereby controlling the speed of the rotation movement of the shield machine A.

[0062] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. An electromagnetically driven shield machine rotation and movement system, characterized in that: It comprises a bracket mechanism (1), a permanent magnet (2) and an electromagnetic guide assembly; The electromagnetic guide assembly comprises a track (3), a vertical plate (4) and a plurality of electric induction magnets (5); the track (3) is detachably arranged in a receiving well and is connected to the right line (B) and the left line (C) of the shield tunnel; the vertical plates (4) are detachably arranged on both outer sides of the track (3) in the longitudinal direction; a plurality of electric induction magnets (5) are detachably arranged on each vertical plate (4) at equal intervals along the longitudinal direction of the track (3); all the electric induction magnets (5) are connected in parallel to an AC power supply through corresponding switches in different regions, and the electric induction magnets (5) in each region are connected in series; The bracket mechanism (1) is movably arranged on the track (3) and is used to carry the shield machine (A); The number of the permanent magnets (2) is plural, and the permanent magnets (2) are detachably arranged at equal intervals on both sides of the travel direction of the bracket mechanism (1); the magnetic poles of each adjacent two permanent magnets (2) facing the same side of the electric induction magnet (5) are both opposite magnetic poles; the magnetic poles of each adjacent two electric induction magnets (5) facing the same side of the permanent magnet (2) are both opposite magnetic poles; the distance between the permanent magnetic surface surrounded by each permanent magnet (2) and the induction magnetic surface surrounded by each electric induction magnet (5) on the same side of the permanent magnetic surface is 1 to 2 m; The track (3) is a U-shaped structure; the vertical plate (4) is a U-shaped plate and is adapted to match the U-shaped structure of the track (3); In the direction from the right line (B) of the shield tunnel to the left line (C) of the shield tunnel, a first straight area (6), a first arc area (7), a second straight area (8), a second arc area and a third straight area are sequentially arranged on the U-shaped plate according to its U-shaped structure; each of the electric induction magnets (5) located in the first straight area (6) is connected in series with a first conductor; each of the electric induction magnets (5) located in the first arc area (7) is connected in series with a second conductor; each of the electric induction magnets (5) located in the second straight area (8) is connected in series with a third conductor; each of the electric induction magnets (5) located in the second arc area is connected in series with a fourth conductor; each of the electric induction magnets (5) located in the third straight area is connected in series with a fifth conductor; the first conductor, the second conductor, the third conductor, the fourth conductor and the fifth conductor are respectively connected in parallel with the AC power supply through switches.

2. The electromagnetic driven shield machine rotation and movement system according to claim 1, characterized in that: The distance between each two adjacent electro-induction magnets (5) is 0.5-1.5 m.

3. The electromagnetic driven shield machine rotation and movement system according to claim 1, characterized in that: The distance between each two adjacent permanent magnets (2) is 0.5-1.5 m.

4. The electromagnetic driven shield machine rotation and movement system according to claim 1, characterized in that: The electric induction magnet (5) comprises an electromagnet and an electromagnetic coil; the electromagnetic coil is wound around the electromagnet and connected to the AC power supply.

5. The electromagnetic driven shield machine rotation and movement system according to any one of claims 1 to 4, characterized in that: The bracket mechanism (1) comprises a bracket body (1.1) and an extension bracket (1.2); the extension bracket (1.2) is arranged at the front end of the bracket body (1.1) in the direction of travel; the extension bracket (1.2) has arc-shaped curved structures on both sides of the direction of travel, and its curvature is adapted to the curvature of the U-shaped structure of the track (3); a plurality of permanent magnets (2) are arranged on both sides of the bracket body (1.1) and the extension bracket (1.2).

6. The electromagnetic driven shield machine rotation and movement system according to claim 5, characterized in that: The bracket mechanism (1) further comprises an anti-overturning support block; the anti-overturning support block is arranged on the bracket body (1.1) and is connected to the shield machine (A).

7. The electromagnetic driven shield machine rotation and movement system according to claim 5, characterized in that: The bracket mechanism (1) further comprises a track wheel adapted to the track (3); the track wheel is a track wheel with a brake; there are a plurality of track wheels, which are evenly distributed at the bottom of the bracket body (1.1).

8. The electromagnetic driven shield machine rotation and movement system according to claim 5, characterized in that: It also includes a main controller; the main controller includes a PLC controller, which is connected to the AC power supply and each of the switches.

9. An application method of the electromagnetic driven shield machine rotation and movement system according to claim 8, characterized in that: include: Step S1, hoisting the bracket mechanism (1) onto the track (3) in the receiving shaft near the opening of the right line (B) of the shield tunnel, and at the same time, adjusting the bracket mechanism (1) to an initial state, that is, adjusting the permanent magnets (2) on both sides of the bracket mechanism (1) and the electric induction magnets (5) on the two vertical plates (4) corresponding to the permanent magnets (2) to be in a misaligned state; introducing the shield machine (A) after the operation on the right line (B) of the shield tunnel is completed onto the bracket mechanism (1) under the action of the rear supporting trolley, and disconnecting the pipelines and cables connected to the shield machine (A); Step S2: First, the switch on the first conductor is closed by the PLC controller to pass alternating current to each of the induction magnets (5) in the first straight area (6) to generate an alternating magnetic field; in the initial misaligned state, by virtue of the magnetic force of the opposite magnetic poles between the induction magnets (5) and the permanent magnets (2), a combined force can be formed to pull the bracket mechanism (1) to carry the shield machine (A) on the track (3); Secondly, the switch on the second conductor is closed by the PLC controller to supply alternating current to each of the induction magnets (5) in the first arc-shaped area (7) to generate an alternating magnetic field, continuously forming a combined force to pull the bracket mechanism (1) to carry the shield machine (A) on the track (3), thereby completing the first rotation action of the shield machine (A); Subsequently, the switch on the third conductor is closed by the PLC controller, so as to supply alternating current to each of the induction magnets (5) in the second straight area (8) to generate an alternating magnetic field, and continuously form a combined force to pull the bracket mechanism (1) to carry the shield machine (A) on the track (3); wherein, when the PLC controller closes the switch on the third conductor, the switch on the first conductor and the switch on the second conductor are opened; Then, the switch on the fourth wire is closed by the PLC controller to pass alternating current to each of the induction magnets (5) in the second arc-shaped area to generate an alternating magnetic field, continuously forming a combined force to pull the bracket mechanism (1) to carry the shield machine (A) on the track (3), thereby completing the second rotation action of the shield machine (A); Finally, the switch on the fifth conductor is closed by the PLC controller, so as to supply alternating current to each of the induction magnets (5) in the third linear region to generate an alternating magnetic field, and continuously form a combined force to pull the bracket mechanism (1) to carry the shield machine (A) on the track (3); wherein, when the PLC controller closes the switch on the fifth conductor, the switch on the third conductor is opened; When the bracket mechanism (1) carries the shield machine (A) on the track (3) to the receiving shaft near the opening of the left line (C) of the shield tunnel, the PLC controller disconnects the switch on the fourth wire and the switch on the fifth wire; During the process of the shield machine (A) completing the rotation movement along with the bracket mechanism (1), the PLC controller controls the magnitude of the alternating current connected by the AC power supply to each of the induction magnets (5), thereby controlling the speed of the shield machine (A) rotation movement.

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