Electromagnetic vibration reduction ballast bed

Abstract

The invention discloses an electromagnetic vibration reduction ballast bed which comprises a ballast bed plate (10), at least one electromagnetic suspension unit (30) and a base (40). The electromagnetic suspension unit (30) comprises a plurality of magnetic poles (31) and a plurality of electromagnet structures (32), the magnetic poles are arranged on the upper surfaces of the two sides of the roadbed slab, and each magnetic pole extends in the longitudinal direction of the roadbed and spans the profile steel cross beam; an electromagnet (321) is arranged in each electromagnet structure, and the electromagnet structures (32) are supported on the base (40) and arranged above the magnetic poles (31), so that each electromagnet (321) corresponds to one magnetic pole (31), and a certain gap exists between the electromagnet (321) and the magnetic pole (31); when the electromagnetic suspension unit (30) is electrified, the electromagnet structure generates upward electromagnetic attraction to the magnetic poles, and the roadbed slab is suspended.

Description

Technical Field

[0001] The present invention relates to the field of rail transit technology, and more specifically to an electromagnetic vibration reduction track bed. Background Art

[0002] Urban rail transit is developing rapidly, but the environmental vibration caused by rail transit has also attracted more and more attention, and various vibration reduction measures have been put into different lines. The use of vibration reduction ballast is one of the commonly used vibration reduction methods.

[0003] Traditional vibration-damping roadbeds usually use elastic elements such as vibration-damping pads and vibration isolators to isolate the roadbed from the foundation to achieve the vibration-damping effect. However, there are also some shortcomings. For example, although the existing vibration-damping roadbed structure and the foundation are connected by elastic elements, the elastic elements have limitations in vibration reduction and vibration isolation due to their own physical properties, especially near the natural frequency of the system, and the low-frequency energy vibration isolation effect is poor; in addition, as the elastic elements age, the vibration-damping effect will gradually decay.

[0004] Therefore, new roadbed vibration reduction technology and equipment are needed to at least partially eliminate the problems existing in the prior art. Summary of the invention

[0005] The present invention is mainly aimed at the above-mentioned deficiencies in the prior art, and aims to provide an electromagnetic vibration-damping ballast bed, in which the ballast bed and the foundation are connected by electromagnetic force, overcoming the problems caused by the traditional use of elastic elements. In addition, there is no physical contact, which can effectively reduce the outward propagation of vibration energy.

[0006] According to one aspect of the present invention, an electromagnetic vibration reduction ballast is provided, comprising: a ballast plate (10), at least one steel beam (20), at least one electromagnetic suspension unit (30) and a base (40);

[0007] Wherein, the at least one steel beam (20) passes through the track bed slab transversely;

[0008] The electromagnetic suspension unit (30) comprises a plurality of magnetic poles (31) and a plurality of electromagnet structures (32), wherein the plurality of magnetic poles (31) are arranged on the upper surfaces of both sides of the track bed plate (10), and each magnetic pole extends longitudinally along the track bed and crosses the steel beam (20);

[0009] An electromagnet (321) is disposed in each electromagnet structure (32), and the electromagnet structure (32) is supported on a substrate (40) and disposed above a magnetic pole (31), so that each electromagnet (321) corresponds to a magnetic pole (31) and a certain gap exists between the electromagnet (321) and the magnetic pole (31);

[0010] When the electromagnetic suspension unit (30) is powered on, the electromagnet structure (32) generates an upward electromagnetic suction force on the magnetic pole (31), thereby suspending the track bed plate (10).

[0011] According to an embodiment of the present invention, the ballast plate (10) is a convex ballast plate, and the thickness of the middle section is thicker than that of the two sides.

[0012] According to an embodiment of the present invention, the electromagnetic vibration damping ballast bed further comprises a buffer cushion layer (11) arranged on the lower surface of the ballast bed plate (10).

[0013] According to an embodiment of the present invention, the electromagnetic vibration damping track bed further comprises at least one steel beam (20), wherein the at least one steel beam (20) transversely penetrates the track bed plate (10), and each magnetic pole extends longitudinally along the track bed and crosses the steel beam (20).

[0014] According to an embodiment of the present invention, an electromagnetic suspension unit (30) comprises four magnetic poles (31), two magnetic poles (31) are respectively arranged on both sides of the track bed plate (10), and two channels (12) are formed on the track bed plate between the two magnetic poles (31);

[0015] There are two electromagnet structures (32), each of which includes two electromagnets (321), a total of four electromagnets, corresponding to four magnetic poles respectively. The electromagnet structure (32) is formed into a T-shaped structure including two horizontal wings and two support columns (322). The two electromagnets (321) are respectively arranged in the two wings of the T-shaped structure, and the two support columns (322) respectively correspond to the two channels (12), so that the two support columns (322) are supported on the base (40) through the channels (12) respectively, and a certain gap exists between the electromagnet (321) and the corresponding magnetic pole (31).

[0016] According to an embodiment of the present invention, an electromagnetic suspension unit (30) comprises two magnetic poles (31) respectively arranged on both sides of a roadbed plate (10), two channels (12) are formed on the roadbed plate inside each magnetic pole (31), and a base (40) is exposed outside each magnetic pole (31);

[0017] There are two electromagnet structures (32), each of which includes an electromagnet (321), and there are two electromagnets in total, which correspond to two magnetic poles respectively. The electromagnet structure (32) is formed into a door-shaped structure including a horizontal cross plate and four support columns (322). The electromagnet (321) is arranged in the middle of the cross plate and corresponds to a magnetic pole (31). The two support columns (322) on the inner side of the magnetic pole correspond to the two channels (12) respectively, and are supported on the base (40) through the channels (12) respectively. The two support columns (322) on the outer side of the magnetic pole are directly supported on the exposed base, so that there is a certain gap between the electromagnet (321) and the corresponding magnetic pole (31).

[0018] According to an embodiment of the present invention, an electromagnetic suspension unit (30) comprises four magnetic poles (31), two magnetic poles (31) are respectively arranged on both sides of the track bed plate (10), and two channels (12) are formed on the track bed plate between the two magnetic poles (31) on the same side, for a total of four channels (12);

[0019] There are two electromagnet structures (32), each of which includes two electromagnets (321), a total of four electromagnets, corresponding to four magnetic poles respectively. The electromagnet structure (32) is formed into a rectangular structure, and the two electromagnets (321) are respectively arranged at the lower end of the rectangular structure and respectively correspond to the two magnetic poles (31).

[0020] Four buttresses (41) corresponding to the four channels (12) are formed on the base (40), whereby the four buttresses (41) are in contact with the lower end of the electromagnet structure (32) through the four channels (12) respectively, and a certain gap exists between the electromagnet (321) and the corresponding magnetic pole (31).

[0021] According to an embodiment of the present invention, a pin mounting hole (50) is formed on the lower end of the support column (322) and the corresponding base (40), and a pin (51) is arranged in the pin mounting hole (50).

[0022] According to an embodiment of the present invention, a pin mounting hole (50) is formed in the electromagnet structure (32) and the corresponding pier (41), and a pin (51) is arranged in the pin mounting hole (50).

[0023] According to an embodiment of the present invention, the electromagnetic vibration damping ballast bed further comprises an electromagnet structure (32) and corresponding magnetic poles, channels and / or piers arranged on the ballast bed plate (10) between the two rails (1).

[0024] According to an embodiment of the present invention, a plurality of reserved holes (21) are formed in the steel beam (20).

[0025] Compared with traditional technologies, the design of the present invention achieves many beneficial technical effects. For example, it changes the supporting structure of the traditional vibration-damping track bed, avoids physical contact, broadens the vibration-damping frequency band, and does not age and lead to reduced vibration-damping effect; the steel frame structure reduces the deadweight of the structure (the plate body is thin) while improving the structural strength; the electromagnetic suspension structure is located on the outside of the rail, the overall force is stable, and it is convenient for replacement and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic cross-sectional structure diagram of an electromagnetic vibration reduction ballast bed according to a first embodiment of the present invention;

[0027] Figure 2 for Figure 1 Explosion diagram of

[0028] Figure 3 It is a side cross-sectional schematic diagram of an electromagnet structure of a T-shaped structure of an electromagnetic vibration damping ballast according to a first embodiment of the present invention;

[0029] Figure 4 It is a schematic diagram of the top view of the electromagnetic suspension unit (the electromagnet structure is not shown) of the electromagnetic vibration damping track bed according to the first embodiment of the present invention;

[0030] Figure 5 It is a schematic cross-sectional structure diagram of an electromagnetic vibration reduction ballast bed according to a second embodiment of the present invention;

[0031] Figure 6 It is a schematic diagram of the top view of the electromagnetic suspension unit (the electromagnet structure is not shown) of the electromagnetic vibration damping track bed according to the second embodiment of the present invention;

[0032] Figure 7 It is a schematic cross-sectional structure diagram of an electromagnetic vibration reduction ballast bed according to a third embodiment of the present invention;

[0033] Figure 8 for Figure 7 Explosion diagram of

[0034] Fig. 9 It is a schematic side cross-sectional view of an electromagnet structure of a rectangular structure of an electromagnetic vibration damping ballast according to a third embodiment of the present invention;

[0035] Fig.10 It is a schematic diagram of the cross-sectional structure of an electromagnetic vibration reduction ballast bed according to a fourth embodiment of the present invention. DETAILED DESCRIPTION

[0036] The present invention can be better understood according to the accompanying drawings and the following embodiments. However, it is easy for those skilled in the art to understand that the contents described in the embodiments are only used to illustrate the present invention, and should not and will not limit the present invention.

[0037] Figure 1 It is a schematic cross-sectional structure diagram of an electromagnetic vibration reduction ballast bed according to a first embodiment of the present invention; Figure 2 for Figure 1 Explosion diagram of Figure 3 It is a side cross-sectional schematic diagram of an electromagnet structure of a T-shaped structure of an electromagnetic vibration damping ballast according to a first embodiment of the present invention; Figure 4 Schematic diagram of the top view of the electromagnetic suspension unit (the electromagnet structure is not shown) of the electromagnetic vibration damping track bed according to the first embodiment of the present invention.

[0038] With reference to the accompanying drawings, the electromagnetic vibration reduction ballast of the first embodiment may include: a ballast plate (10), at least one steel beam (20), at least one electromagnetic suspension unit (30) and a base (40). The components of the electromagnetic vibration reduction ballast are described in detail below in conjunction with the accompanying drawings.

[0039] The ballast plate (10) can be a reinforced concrete structure, a steel-concrete structure, a steel structure, etc.; when it is a steel-concrete structure, at least one steel beam (20) runs through the middle. A plurality of reserved holes (21) (rebar holes) can be reserved on the steel beam below the rail (1) and below the magnetic pole (31) for the longitudinal reinforcement to pass through, so as to improve the integrity of the ballast structure. A buffer layer (11) can be provided under the ballast plate, for example, a rubber layer or other suitable polymer material layer can be provided. When the ballast floats, the buffer layer separates from the base, and a suspended gap is generated between the ballast and the base. When the ballast falls, the buffer layer contacts the base to prevent the ballast and the base from colliding.

[0040] The electromagnetic suspension unit (30) comprises a plurality of magnetic poles (31) and a plurality of electromagnet structures (32), wherein the plurality of magnetic poles (31) are arranged on the upper surface of both sides of the ballast plate (10), for example, both sides of the rail (1), and each magnetic pole extends longitudinally along the ballast plate and crosses the steel beam (20) (when the ballast plate (10) is a steel concrete structure). For example, the ballast plate (10) may be a convex ballast plate, the thickness of the middle section is thicker than that of the two sides, and the magnetic poles (31) are arranged in the thinner ballast plates (10) on both sides. An electromagnet (321) is arranged in each electromagnet structure (32), and the electromagnet structure (32) is supported on a base (40) and arranged above the magnetic pole (31), so that each electromagnet (321) corresponds to a magnetic pole (31) and there is a certain gap between the electromagnet (321) and the magnetic pole (31), for example, 6-10 mm. It should be understood that the number of magnetic poles (31) and corresponding electromagnet structures (32) can be specifically set according to needs.

[0041] More specifically, as shown in the figure, an electromagnetic suspension unit (30) is shown in the figure. It should be understood that a plurality of electromagnetic suspension units can be evenly arranged on the track bed plate along the longitudinal direction of the track as needed. Referring to the accompanying drawings, the magnetic suspension unit (30) includes four magnetic poles (31), two magnetic poles (31) are respectively arranged on both sides of the track bed plate (10), and two channels (12) are formed on the track bed plate between the two magnetic poles (31), which are respectively located on both sides of the steel beam (20); thus, four channels are formed in one electromagnetic suspension unit (30).

[0042] There are two electromagnet structures (32), each of which includes two electromagnets (321), a total of four electromagnets, corresponding to the four magnetic poles (31). In this embodiment, the electromagnet structure (32) is formed into a T-shaped structure (the transverse section is T-shaped). The T-shaped structure includes two horizontal wings and two support columns (322) one in front and one behind. The two electromagnets (321) are respectively arranged in the two wings of the T-shaped structure, symmetrically arranged, and flush with the lower surfaces of the two wings. The two support columns (322) respectively correspond to the two channels (12), so that the two support columns (322) are supported on the base (40) through the channels (12) respectively, and a certain gap exists between the electromagnet (321) and the corresponding magnetic pole (31).

[0043] In addition, pin mounting holes (50) are formed at the lower ends of the two support columns (322) and the corresponding base (40), and pins (51) are arranged in the pin mounting holes (50). The pins are used for limiting, and the lower part of the limiting pins is connected to the base, and the upper part is connected to the electromagnet T-shaped structure, so that the limiting pins can limit the horizontal and longitudinal movement of the electromagnet T-shaped structure.

[0044] When the electromagnetic suspension unit (30) is powered on, the electromagnet structure (32) generates an upward electromagnetic attraction to the magnetic pole (31), suspending the track bed plate (10). The gap between the magnetic pole and the electromagnet structure is reduced, but a suspension gap of several millimeters, such as 3-5 millimeters, is still maintained. The principle of electromagnetic suspension is well known in the art, so the relevant control, power and other systems are not described in detail herein.

[0045] The electromagnet T-shaped structure of the present invention is symmetrically stressed when generating suction on the track bed, and the stress point is on the outside of the rail, thereby improving the stability of the system. In addition, the electromagnet T-shaped structure can be moved upward and disassembled, and the rail and other track structures will not be affected during disassembly, and the electromagnet and the magnetic pole can be easily inspected after disassembly.

[0046] Figure 5 It is a schematic cross-sectional structure diagram of an electromagnetic vibration reduction ballast bed according to a second embodiment of the present invention; Figure 6FIG. 1 is a schematic diagram of a top view of an electromagnetic suspension unit (not showing the electromagnet structure) of an electromagnetic vibration damping track bed according to a second embodiment of the present invention. In this embodiment, the electromagnet structure (32) is formed into a gate-shaped structure (the transverse section is gate-shaped, and the side section schematic diagram is different from that of the first embodiment). Figure 3 The technical solution can be used for low axle-weight lines, which can reduce the width of the electromagnetic vibration-damping track bed, reduce the number of electromagnets and magnetic poles, and save costs.

[0047] The features of this embodiment are described in detail below with reference to the accompanying drawings, and the features identical to those of the first embodiment will not be described in detail again.

[0048] As shown in the figure, an electromagnetic suspension unit (30) is shown in the figure, which may include two magnetic poles (31), which are respectively arranged on both sides of the roadbed plate (10), and two channels (12) are formed on the roadbed plate inside each magnetic pole (31), which are respectively located on both sides of the steel beam (20), and no roadbed plate is arranged outside each magnetic pole (31), so the base (40) is exposed.

[0049] There are two electromagnet structures (32), each of which includes an electromagnet (321), and there are two electromagnets in total, which correspond to two magnetic poles respectively. The electromagnet structure (32) is formed into a door-shaped structure, including a horizontal cross plate and four support columns (322) connected to the four corners of the cross plate. The electromagnet (321) is arranged in the middle of the cross plate, flush with the lower surface of the cross plate and corresponding to a magnetic pole (31). The two support columns (322) on the inner side of the magnetic pole correspond to the two channels (12) respectively, and are thus supported on the base (40) through the channels (12) respectively. The two support columns (322) on the outer side of the magnetic pole are directly supported on the exposed base, so that there is a certain gap between the electromagnet (321) and the corresponding magnetic pole (31), for example, 6-10 mm.

[0050] Likewise, in this embodiment, a pin mounting hole (50) is formed on the lower end of the support column (322) and the corresponding base (40), and a pin (51) is disposed in the pin mounting hole (50).

[0051] Figure 7 It is a schematic cross-sectional structure diagram of an electromagnetic vibration reduction ballast bed according to a third embodiment of the present invention; Figure 8 for Figure 7 Explosion diagram of Fig. 9 The schematic side cross-sectional view of the rectangular electromagnet structure of the electromagnetic vibration damping track bed according to the third embodiment of the present invention. Referring to the accompanying drawings, in order to simplify the electromagnet structure and facilitate installation, the electromagnet structure can be set as a rectangular structure.

[0052] The features of this embodiment are described in detail below with reference to the accompanying drawings, and the features identical to those of the first embodiment will not be described in detail again.

[0053] As shown in the figure, an electromagnetic suspension unit (30) is shown in the figure. The electromagnetic suspension unit (30) may include four magnetic poles (31), two magnetic poles (31) are respectively arranged on both sides of the track bed plate (10), and two channels (12) are formed on the track bed plate between the two magnetic poles (31), which are respectively located on both sides of the steel beam (20), with a total of four channels (12).

[0054] There are two electromagnet structures (32), each of which includes two electromagnets (321), a total of four electromagnets, corresponding to four magnetic poles respectively. The electromagnet structure (32) is formed into a rectangular structure, and the two electromagnets (321) are respectively arranged at the lower end of the rectangular structure and are flush with the lower surface of the rectangle, symmetrically arranged, and respectively correspond to the two magnetic poles (31).

[0055] Four piers (41) corresponding to the four channels (12) are formed on the base (40), the piers are slightly higher than the roadbed, and the electromagnet rectangular structure is placed above the electromagnet piers. Thus, the four piers (41) are in contact with the lower end of the electromagnet structure (32) through the four channels (12) respectively, and a certain gap, for example, 6-10 mm, exists between the electromagnet (321) and the corresponding magnetic pole (31). In addition, a pin mounting hole (50) is formed in the electromagnet structure (32) and the pier (41) corresponding thereto, and a pin (51) is arranged in the pin mounting hole (50). As shown in the figure, the pin mounting hole in the electromagnet structure (32) can be a through hole, which is convenient for installation and disassembly.

[0056] When there is insufficient installation space on the outer side of the track or the electromagnetic force needs to be further enhanced, an electromagnet structure and magnetic poles can be installed on the inner side of the track to ensure that the electromagnetic vibration reduction track bed is evenly stressed at multiple points. Fig.10 The schematic diagram of the cross-sectional structure of the electromagnetic vibration damping ballast according to the fourth embodiment of the present invention is shown in the figure. On the basis of the second embodiment, an electromagnet structure (32) and corresponding magnetic poles, channels and other structures of the first embodiment are arranged on the ballast plate (10) between two tracks (1) to generate magnetic attraction in the center of the ballast plate (10). It should be understood that the electromagnet structure (32) and corresponding magnetic poles, channels or piers and other structures in different embodiments can be added on the basis of the first, second and third embodiments.

[0057] The above exemplary embodiments of the present invention are described, but the present invention is not limited to the above described embodiments. The basic idea of ​​the present invention is the above basic scheme. For ordinary technicians in this field, it does not take creative work to design various deformed models, formulas, and parameters according to the teachings of the present invention. Changes, modifications, substitutions, and deformations of the embodiments without departing from the principles and spirit of the present invention still fall within the scope of protection of the present invention.

Claims

1. An electromagnetic vibration reduction track bed, characterized in that: include: A track bed plate (10), at least one electromagnetic suspension unit (30) and a base (40); The electromagnetic suspension unit (30) comprises a plurality of magnetic poles (31) and a plurality of electromagnet structures (32), wherein the plurality of magnetic poles (31) are arranged on the upper surfaces of both sides of the track bed plate (10), and each magnetic pole extends longitudinally along the track bed; An electromagnet (321) is disposed in each electromagnet structure (32), and the electromagnet structure (32) is supported on a substrate (40) and disposed above a magnetic pole (31), so that each electromagnet (321) corresponds to a magnetic pole (31) and a certain gap exists between the electromagnet (321) and the magnetic pole (31); When the electromagnetic suspension unit (30) is powered on, the electromagnet structure (32) generates an upward electromagnetic suction force on the magnetic pole (31), thereby suspending the track bed plate (10).

2. The electromagnetic vibration damping ballast bed according to claim 1, characterized in that: The ballast plate (10) is a convex ballast plate, and the thickness of the middle section is thicker than that of the two sides.

3. The electromagnetic vibration damping ballast bed according to claim 1, characterized in that: It also includes a buffer cushion layer (11) arranged on the lower surface of the track bed plate (10).

4. The electromagnetic vibration reduction track bed according to claim 1, characterized in that: It also comprises at least one steel beam (20), wherein the at least one steel beam (20) penetrates the track bed plate (10) transversely, and each magnetic pole extends longitudinally along the track bed and crosses the steel beam (20).

5. The electromagnetic vibration damping ballast bed according to claim 1, characterized in that: An electromagnetic suspension unit (30) comprises four magnetic poles (31), two magnetic poles (31) are respectively arranged on both sides of the track bed plate (10), and two channels (12) are formed on the track bed plate between the two magnetic poles (31); There are two electromagnet structures (32), each of which includes two electromagnets (321), a total of four electromagnets, corresponding to four magnetic poles respectively. The electromagnet structure (32) is formed into a T-shaped structure including two horizontal wings and two support columns (322). The two electromagnets (321) are respectively arranged in the two wings of the T-shaped structure, and the two support columns (322) respectively correspond to the two channels (12), so that the two support columns (322) are supported on the base (40) through the channels (12) respectively, and a certain gap exists between the electromagnet (321) and the corresponding magnetic pole (31).

6. The electromagnetic vibration reduction track bed according to claim 1, characterized in that: An electromagnetic suspension unit (30) comprises two magnetic poles (31) respectively arranged on both sides of a track bed plate (10), two channels (12) are formed on the track bed plate inside each magnetic pole (31), and a base (40) is exposed outside each magnetic pole (31); There are two electromagnet structures (32), each of which includes an electromagnet (321), and there are two electromagnets in total, which correspond to two magnetic poles respectively. The electromagnet structure (32) is formed into a door-shaped structure including a horizontal cross plate and four support columns (322). The electromagnet (321) is arranged in the middle of the cross plate and corresponds to a magnetic pole (31). The two support columns (322) on the inner side of the magnetic pole correspond to the two channels (12) respectively, and are supported on the base (40) through the channels (12) respectively. The two support columns (322) on the outer side of the magnetic pole are directly supported on the exposed base, so that there is a certain gap between the electromagnet (321) and the corresponding magnetic pole (31).

7. The electromagnetic vibration reduction track bed according to claim 1, characterized in that: An electromagnetic suspension unit (30) comprises four magnetic poles (31), two magnetic poles (31) are respectively arranged on both sides of a track bed plate (10), and two channels (12) are formed on the track bed plate between the two magnetic poles (31) on the same side, for a total of four channels (12); There are two electromagnet structures (32), each of which includes two electromagnets (321), a total of four electromagnets, corresponding to four magnetic poles respectively. The electromagnet structure (32) is formed into a rectangular structure, and the two electromagnets (321) are respectively arranged at the lower end of the rectangular structure and respectively correspond to the two magnetic poles (31). Four buttresses (41) corresponding to the four channels (12) are formed on the base (40), whereby the four buttresses (41) are in contact with the lower end of the electromagnet structure (32) through the four channels (12) respectively, and a certain gap exists between the electromagnet (321) and the corresponding magnetic pole (31).

8. The electromagnetic vibration damping ballast bed according to claim 5 or 6, characterized in that: A pin installation hole (50) is formed at the lower end of the support column (322) and the corresponding base (40), and a pin (51) is arranged in the pin installation hole (50).

9. The electromagnetic vibration reduction track bed according to claim 7, characterized in that: A pin installation hole (50) is formed in the electromagnet structure (32) and the corresponding pier (41), and a pin (51) is arranged in the pin installation hole (50).

10. The electromagnetic vibration reduction ballast bed according to claim 5, 6 or 7, characterized in that: The invention also includes arranging an electromagnet structure (32) and corresponding magnetic poles, channels and / or piers on the track bed plate (10) between the two tracks (1).

11. The electromagnetic vibration reduction track bed according to claim 4, characterized in that: A plurality of reserved holes (21) are formed in the steel beam (20).

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