Non-separated magnetic suspension fastener system

Abstract

The utility model discloses a non-split type magnetic suspension fastener system which comprises an iron base plate, a height adjusting base plate, an elastic base plate, two anchor bolts, fastening nuts and a distance adjusting pinch plate, the fastening nuts and the distance adjusting pinch plate are in one-to-one correspondence with the anchor bolts, and the lower portions of the anchor bolts are embedded in a rail bearing table. The H-shaped steel sleeper comprises a first main body, a second main body and a third main body which are sequentially connected from top to bottom to form an H shape, the lower end of the iron base plate is embedded into the rail bearing table, and a long hole allowing an anchor bolt to penetrate through is formed in the distance adjusting pinch plate; the upper end of each distance adjusting pinch plate is horizontally and convexly provided with a limiting part, the lower end is inserted into the third main body, and the limiting parts abut against the upper end face of the third main body; the upper portion of each anchor bolt is arranged above the rail bearing table in a protruding mode and sequentially penetrates through the iron base plate, the height adjusting base plate, the long hole and the fastening nut from bottom to top. When the height adjusting base plate is translated, the two anchor bolts can be synchronously inserted into the height adjusting base plate or synchronously separated from the height adjusting base plate in the horizontal direction. The damping gasket is not prone to being damaged during longitudinal adjustment and transverse adjustment in the horizontal direction, and vertical distance adjustment is facilitated.

Description

Technical Field

[0001] The utility model belongs to the field of magnetic levitation fastener systems, and in particular relates to an inseparable magnetic levitation fastener system. Background Art

[0002] Maglev railways are a new type of transportation system. They utilize the repulsive force generated by an electromagnetic system to lift the train, suspending it on the rails. This electromagnetic force provides guidance, while linear motors convert electrical energy directly into propulsion. This eliminates wheel-rail contact, creating frictionless resistance, reduces vertical loads on the line, and allows for high speeds. They are pollution-free, safe, reliable, and comfortable. Maglev fasteners are a crucial component of the track structure, securing the H-shaped steel sleepers of the track to the rail supports and transferring train loads through the track and fasteners to the underlying foundation. They ensure the stability and reliability of the maglev track and provide the necessary vibration damping and insulation properties.

[0003] Chinese patent CN 211872434 U provides a medium- and low-speed magnetic levitation non-separable rail fastener. The fastener system includes embedded bolts connected in series to form a height adjustment nut, a vibration reduction or distance adjustment component, and an upper pressure nut component. The height adjustment nut is located under the bottom surface of the iron base plate, and the vibration reduction or distance adjustment component is located between the bottom top surface of the H-shaped steel sleeper rail and the bottom surface of the upper pressure nut component. Large circular holes are opened on the rail bottom on both sides of the H-shaped steel sleeper rail waist. The lower part of the embedded bolts is buried in the rail support platform and forms an anchor connection with it, and the upper part passes through the large circular holes on the rail bottom to realize the longitudinal and lateral adjustment of the H-shaped steel sleeper. The longitudinal and lateral adjustments are easy to cause damage to the bottom of the H-shaped steel sleeper; the vertical adjustment of the H-shaped steel sleeper is achieved by changing the thickness of the height adjustment plate. The height adjustment plate and the components above it need to be removed for vertical adjustment, which is not convenient for adjusting the vertical distance; and the vibration-damping gasket is arranged between the T-shaped integral distance adjustment block and the top surface of the H-shaped steel sleeper rail bottom. Under the action of force, the vibration-damping gasket is easy to deform and damage.

[0004] Therefore, a new technology is needed to solve the problems in the prior art that the magnetic levitation fastener system is inconvenient for vertical distance adjustment and the shock-absorbing gasket is easily damaged. Utility Model Content

[0005] In order to solve the above problems in the prior art, the utility model provides a non-separable magnetic levitation fastener system, which is not easy to damage the shock-absorbing gasket during horizontal longitudinal and lateral adjustments and is convenient for vertical distance adjustment.

[0006] The utility model adopts the following technical solutions:

[0007] A non-separable magnetic levitation fastener system includes an iron backing plate, a height adjustment backing plate, an elastic backing plate, paired anchor bolts, fastening nuts corresponding to each anchor bolt, and a distance adjustment plate, wherein the lower portion of each anchor bolt is embedded in the interior of the rail support platform; the anchor bolts are used to fix H-shaped steel sleepers, and the H-shaped steel sleepers include a first body, a second body, and a third body connected in sequence to form an H shape, wherein the first body and the third body are parallel to each other;

[0008] The iron pad, the height adjustment pad, the elastic pad, and the H-shaped steel sleeper are sequentially arranged above the rail support platform from bottom to top, the lower end of the iron pad is embedded in the rail support platform, and each of the distance adjustment buckle plates is provided with an elongated hole for each anchor bolt to pass through, and the size of each elongated hole along the length direction of the third body is larger than the size of the anchor bolt, and matches the size of the anchor bolt along the direction perpendicular to the length direction of the third body;

[0009] The upper end of each of the adjustable gusset plates is horizontally protruded with a limiting portion, the lower end of which is inserted into the third body, and the lower end surface of each of the limiting portions is abutted and connected with the upper end surface of the third body;

[0010] The upper portion of each anchor bolt protrudes above the rail support platform and passes through the iron plate, the height adjustment plate, one of the elongated holes, and one of the fastening nuts from bottom to top. The fastening nut is used to limit the movement of the distance adjustment plate in the vertical direction.

[0011] When the height-adjusting pad is translated, the two anchor bolts can be synchronously inserted into the height-adjusting pad along the horizontal direction.

[0012] As a further improvement of the technical solution of the utility model, it also includes a positioning nut corresponding to each anchor bolt, each positioning nut is sleeved outside the corresponding anchor bolt, and each positioning nut is embedded in the rail support platform and located below the iron plate;

[0013] As a further improvement of the technical solution of the present invention, the upper end surface of each positioning nut is abutted and connected with the lower end surface of the iron pad.

[0014] As a further improvement of the technical solution of the present utility model, the lower end surface of the iron pad is further provided with a plurality of bosses arranged at intervals.

[0015] As a further improvement of the technical solution of the present utility model, the longitudinal section of each boss is trapezoidal, and the horizontal section of each boss gradually decreases from top to bottom.

[0016] As a further improvement of the technical solution of the present utility model, the height of the part where the lower end of the iron pad is embedded in the rail support platform is 5 mm.

[0017] As a further improvement of the technical solution of the present invention, it also includes a spring washer and a flat washer corresponding to each of the anchor bolts, each of the flat washers is located above each of the adjustable spacing plates, the size of each of the flat washers is larger than the size of the elongated hole, and each of the spring washers is located between the corresponding fastening nut and the flat washer.

[0018] As a further improvement of the technical solution of the present invention, it also includes a protective cover corresponding to each of the anchor bolts, and each of the protective covers is provided with a groove with an opening facing downward and for the upper end of the anchor bolt to be embedded.

[0019] As a further improvement of the technical solution of the present invention, the third main body is provided with a through slot adapted to each of the distance-adjusting buckle plates, and the lower end of each of the distance-adjusting buckle plates is inserted into the through slot.

[0020] As a further improvement of the technical solution of the present invention, the height-adjusting pad is provided with a slot for each anchor bolt to pass through, and each slot is vertically continuous, horizontally parallel to each other and has an opening at one end.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] The non-separable magnetic levitation fastener system of this solution uses adjustable spacing plates to achieve horizontal lateral and longitudinal spacing adjustment, and provides a certain vibration reduction performance through elastic pads. Vertical spacing adjustment is achieved by using height-adjusting pads, and the height-adjusting pads have a simple structure and are easy to install. The elongated hole is an oblong through hole or an oblong hole. The anchor bolt is located in the center of the elongated hole and can move horizontally along the length of the elongated hole, thereby achieving horizontal longitudinal spacing adjustment. The horizontal spacing between the center of the elongated hole and the second body on different types of spacing-adjusting pads is different. By replacing the type of spacing-adjusting pad, horizontal lateral spacing adjustment can be achieved. When a certain amount of vertical height adjustment is required, the height of the rail can be adjusted by removing or adding the height-adjusting pad. It can be directly inserted between the elastic pad and the iron pad without removing the components on the height-adjusting pad one by one, which is convenient for installation and facilitates vertical spacing adjustment. During horizontal longitudinal and lateral adjustments, the elastic pad will not move and cause damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The technology of the utility model is further described in detail below with reference to the accompanying drawings and specific embodiments:

[0024] Figure 1 It is a cross-sectional view of the overall structure of the utility model perpendicular to the horizontal plane;

[0025] Figure 2 It is a perspective view of the overall structure of the utility model when viewed from above;

[0026] Figure 3 It is the main view of the anchor bolt;

[0027] Figure 4 is a top view of the anchor bolt;

[0028] Figure 5 It is a cross-sectional view of the iron plate perpendicular to the horizontal plane;

[0029] Figure 6 It is a top view of the height adjustment pad;

[0030] Figure 7 is a top view of the elastic pad;

[0031] Figure 8 1. It is a top view of the distance-adjusting gusset plate;

[0032] Figure 9 yes Figure 8 A cross-sectional view of the distance adjustment plate at one angle;

[0033] Figure 10 is relative to Figure 8 A top view of another adjustable gusset plate with the center of the elongated hole of the adjustable gusset plate translated by a distance d in a direction perpendicular to the length of the elongated hole;

[0034] Figure 11 yes Figure 10 Cross-sectional view of the distance adjustment plate in.

[0035] Reference numerals:

[0036] 1- Anchor bolt;

[0037] 2-Locking nut;

[0038] 3- iron plate; 31- boss;

[0039] 4- Height adjustment plate; 41- Slot;

[0040] 5-Elastic pad;

[0041] 6-adjustable gusset plate; 61-limiting portion; 62-long hole;

[0042] 7-Flat washer;

[0043] 8-spring washer;

[0044] 9- Fasten the nut;

[0045] 10-Protective case;

[0046] 11-H-type steel sleeper; 111-first body; 112-second body; 113-third body;

[0047] 12-rail support platform;

[0048] 13-Track-bearing beam surface. DETAILED DESCRIPTION

[0049] The following will be combined with the embodiments and drawings to clearly and completely describe the concept, specific structure and technical effects of the present invention so as to fully understand the purpose, scheme and effect of the present invention. It should be noted that the embodiments and features in the embodiments of this application can be combined with each other unless there is a conflict. The same reference numerals used throughout the drawings indicate the same or similar parts.

[0050] It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it may be directly fixed or connected to the other feature or indirectly fixed or connected to the other feature. In addition, the terms "upper," "lower," "left," and "right" used in this utility model are only used with respect to the relative positions of the components of the utility model in the accompanying drawings.

[0051] Reference Figures 1 to 11 A non-separable magnetic levitation fastener system is used to fix the H-shaped steel sleeper 11 of the track row to the rail support platform 12, including an iron pad 3, a height adjustment pad 4, an elastic pad 5, a pair of anchor bolts 1, a fastening nut 9 corresponding to each anchor bolt 1, and a distance adjustment plate 6. The lower part of each anchor bolt 1 is buried in the interior of the rail support platform 12, and the rail support platform 12 is set on the rail support beam surface 13. The anchor bolt 1 is used to fix the H-shaped steel sleeper 11, and the H-shaped steel sleeper 11 includes a first main body 111, a second main body 112 and a third main body 113 connected in sequence in an H shape. The first main body 111 and the third main body 113 are parallel to each other, and the two ends of the second main body 112 are fixedly connected to the first main body 111 and the third main body 113 respectively and are perpendicular to each other.

[0052] The iron pad 3, the height adjustment pad 4, the elastic pad 5, and the H-shaped steel sleeper 11 are sequentially arranged above the rail support 12 from bottom to top. The elastic pad 5 is made of rubber and is provided with two through holes for the anchor bolts 1 to pass through. The elastic pad 5 can provide a certain vibration reduction performance for the overall structure of the fastener system. The lower end of the iron pad 3 is embedded in the rail support 12. The iron pad 3 is provided with two through holes for the anchor bolts 1 to pass through. Each of the distance adjustment buckle plates 6 is provided with an elongated hole 62 for each of the anchor bolts 1 to pass through. The size of each of the elongated holes 62 along the length direction of the third body 113 is larger than the size of the anchor bolt 1, and matches the size of the anchor bolt 1 in the direction perpendicular to the length direction of the third body 113. The elongated hole 62 is an oblong through-hole, with the anchor bolt 1 located at its center. The anchor bolt 1 can move horizontally relative to the length of the elongated hole 62, thereby achieving horizontal longitudinal distance adjustment. The length of the elongated hole 62 is parallel to the length of the second body 112. Different models of adjustable gusset plates 6 have different horizontal spacing between the center of the elongated hole 62 and the second body 112. By changing the model of the adjustable gusset plate 6, horizontal lateral distance adjustment can be achieved.

[0053] A limiting portion 61 is horizontally protruded from the upper end of each of the distance-adjusting buckle plates 6 , and the lower end is inserted into the third body 113 . The lower end surface of each of the limiting portions 61 is in contact with the upper end surface of the third body 113 .

[0054] The upper portion of each anchor bolt 1 protrudes above the rail support platform 12 and passes through the iron pad 3, the height adjustment pad 4, a long hole 62, and a fastening nut 9 in sequence from bottom to top. The fastening nut 9 is used to limit the vertical movement of the distance adjustment plate 6. When the height adjustment pad 4 is translated, the two anchor bolts 1 can be synchronously inserted into the height adjustment pad 4 or synchronously detached from the height adjustment pad 4 in the horizontal direction. When a certain amount of height adjustment in the vertical direction is required, the height adjustment pad 4 can be removed or added to adjust the height position of the rail. The height adjustment pad 4 with different height sizes can also be replaced. It can be directly inserted between the elastic pad 5 and the iron pad 3 without having to remove the parts on the height adjustment pad 4 in sequence, which is convenient for installation.

[0055] The non-separate magnetic levitation fastener system of this solution adopts the distance-adjusting plate 6 to achieve horizontal and vertical distance adjustment, and provides a certain vibration reduction performance through the elastic pad 5, and the height-adjusting pad 4 has a simple structure and is easy to install.

[0056] Specifically, the inseparable magnetic levitation fastener system of this scheme also includes a positioning nut 2 corresponding to each of the anchor bolts 1, and each of the positioning nut 2 is mounted on the corresponding anchor bolt 1. Each of the positioning nut 2 is buried in the rail support platform 12 and is located below the iron pad 3, that is, the lower part of the anchor bolt 1 is worn with the positioning nut 2 and anchored to the rail support platform 12.

[0057] Specifically, the iron backing plate 3 is provided on the positioning nut 2 , and the upper end surface of each positioning nut 2 is abutted and connected with the lower end surface of the iron backing plate 3 .

[0058] Specifically, the lower end surface of the iron plate 3 is also provided with a plurality of spaced bosses 31. The provision of the bosses 31 can increase the force between the iron plate 3 and the rail support 12, thereby improving the stability of the fastener system. The longitudinal cross-section of each boss 31 is trapezoidal, and the horizontal cross-section of each boss 31 gradually decreases from top to bottom. The bosses 31 are parallel to each other, and the length direction of each boss 31 is parallel to the length direction of the H-shaped steel sleeper 11. The number of bosses 31 can preferably be three, and each positioning nut 2 is located between two adjacent bosses 31.

[0059] Specifically, the height of the portion of the lower end of the iron plate 3 embedded in the rail support platform 12 is 5 mm, that is, the 5 mm deep portion of the lower part of the iron plate 3 and each boss 31 are cast in the rail support platform 12.

[0060] Specifically, the non-separable magnetic levitation fastener system of this scheme also includes a spring washer 8 and a flat washer 7 corresponding one by one to each of the anchor bolts 1. Each of the flat washers 7 is located above each of the adjustable spacing plates 6. The size of each of the flat washers 7 is larger than the size of the elongated hole 62. Each of the spring washers 8 is located between the corresponding fastening nut 9 and the flat washer 7. The spring washer 8 is preferably a heavy-duty spring washer 8, which can provide certain vibration reduction performance for the overall structure of the fastener system.

[0061] Specifically, the inseparable magnetic levitation fastener system of this solution also includes a protective cover 10 corresponding to each of the anchor bolts 1, and each of the protective covers 10 is provided with a groove with an opening facing downward and for the upper end of the anchor bolt 1 to be embedded. The fastening nut 9 is provided on the heavy spring washer 8 and is installed on the upper end of the anchor bolt 1 to fix various components. The upper end of the anchor bolt 1 passes through the iron pad 3, the height adjustment pad 4, the elastic pad 5, the distance adjustment plate 6, the flat washer 7, the heavy spring washer 8, and the fastening nut 9 in sequence from bottom to top. The protective cover 10 is provided on the fastening nut 9 and is mounted on the top of the anchor bolt 1 to protect the thread of the anchor bolt 1. The overall structure of the inseparable magnetic levitation fastener system of this solution can be referred to in the cross-sectional view perpendicular to the horizontal plane. Figure 1 shown.

[0062] Specifically, the third body 113 is provided with a square through slot or a square hole adapted to each of the distance-adjusting buckle plates 6 , and the lower end of each of the distance-adjusting buckle plates 6 is inserted into the through slot.

[0063] Specifically, the height adjustment plate 4 is provided with slots 41 for the anchor bolts 1 to pass through. Each slot 41 extends vertically through the plate 4, is horizontally parallel to each other, and has an opening at one end. Both slots 41 are door-shaped. The horizontal cross-section of the height adjustment plate 4 is preferably rectangular or square. The openings of the two slots 41 can be located on the same side of the height adjustment plate 4.

[0064] When installing the rail track using the non-separable magnetic levitation fastener system of this solution, after checking and confirming that all fastener components are qualified, the fastener system is assembled and connected to the H-shaped steel sleeper 11, including the following steps:

[0065] S1. Use common tooling to vertically support the H-shaped steel sleeper 11, leaving space for the fastener system installation.

[0066] S2. Fasten the anchor bolt 1 with the positioning nut and adjust the position. Then, place the iron pad 3, height adjustment pad 4, and elastic pad 5 in the corresponding positions. In normal installation, the height adjustment pad 4 can be 5mm thick.

[0067] S3. Insert the anchor bolt 1 through the square slot or square hole in the bottom plate of the H-beam sleeper 11, that is, through the square slot or square hole in the third body 113, so that the anchor bolt 1 is located in the center of the square hole. Then, sequentially place the spacer plate 6, flat washer 7, and heavy-duty spring washer 8 on the square hole in the H-beam sleeper 11. The spacer plate 6 should be inserted into the square slot or square hole in the third body 113.

[0068] S4. Screw the fastening nut 9 into the anchor bolt 1. When screwing in the anchor bolt 1, perform preliminary tightening to ensure that the fastener system does not loosen when casting the rail support platform 12.

[0069] S5. Casting the rail support 12.

[0070] S6. After the rail support 12 is maintained, the fastening nut 9 is re-tightened with a torque of approximately 300 N·m.

[0071] S7. After the position adjustment of the H-shaped steel sleeper 11 is completed, the bolt protection sleeve 10 is installed on the anchor bolt 1.

[0072] When the non-separated magnetic levitation fastener system of this solution is used, the method for adjusting the track position includes:

[0073] Longitudinal telescopic spacing adjustment: longitudinal telescopic spacing adjustment on the horizontal line, the spacing adjustment plate 6 is provided with an oblong hole, and the anchor bolt 1 is in the center of the oblong hole or the elongated hole 62. When affected by temperature force, the H-shaped steel sleeper 11 and the spacing adjustment plate 6 can move horizontally relative to each other along the length direction of the elongated hole 62, that is, the relative anchor bolt 1 can move horizontally relative to each other along the length direction of the elongated hole 62, thereby realizing longitudinal telescopic spacing adjustment on the horizontal plane. At this time, the size of the elongated hole 62 can be set according to actual needs, so that the relative telescopic amount of the H-shaped steel sleeper 11 and the track beam is (-10~+10)mm.

[0074] Transverse telescopic distance adjustment: Transverse distance adjustment on the horizontal plane is achieved by replacing the model of the distance adjusting plate 6. The size of the distance adjusting plate 6 can be selected according to actual needs, so that the transverse adjustment distance of the H-shaped steel sleeper 11 is (-10~+10)mm, and the adjustment level is 1mm.

[0075] Vertical telescopic distance adjustment: Vertical distance adjustment is achieved by installing a height-adjusting pad 4 between the iron pad 3 and the elastic pad 5. The size of the height-adjusting pad 4 can be set according to actual needs, so that the vertical adjustment amount of the H-shaped steel sleeper 11 is (-5~+22) mm, and the adjustment level is 1 mm.

[0076] For other details of the inseparable magnetic levitation fastener system described in the present invention, please refer to the prior art and will not be described in detail here.

[0077] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Therefore, any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A non-separable magnetic fastener system, characterized by: It includes an iron pad, a height adjustment pad, an elastic pad, paired anchor bolts, fastening nuts corresponding to each anchor bolt, and a distance adjustment plate. The lower portion of each anchor bolt is embedded in the interior of the rail support platform. The anchor bolt is used to fix the H-shaped steel sleeper. The H-shaped steel sleeper includes a first main body, a second main body, and a third main body connected in sequence to form an H shape. The first main body and the third main body are parallel to each other. The iron pad, the height adjustment pad, the elastic pad, and the H-shaped steel sleeper are sequentially arranged above the rail support platform from bottom to top, the lower end of the iron pad is embedded in the rail support platform, and each of the distance adjustment buckle plates is provided with an elongated hole for each anchor bolt to pass through, and the size of each elongated hole along the length direction of the third body is larger than the size of the anchor bolt, and matches the size of the anchor bolt along the direction perpendicular to the length direction of the third body; The upper end of each of the adjustable gusset plates is horizontally protruded with a limiting portion, the lower end of which is inserted into the third body, and the lower end surface of each of the limiting portions is abutted and connected with the upper end surface of the third body; The upper portion of each anchor bolt protrudes above the rail support platform and passes through the iron plate, the height adjustment plate, one of the elongated holes, and one of the fastening nuts from bottom to top. The fastening nut is used to limit the movement of the distance adjustment plate in the vertical direction. When the height-adjusting pad is translated, the two anchor bolts can be synchronously inserted into the height-adjusting pad or synchronously detached from the height-adjusting pad along the horizontal direction.

2. The inseparable magnetic fastener system according to claim 1, characterized in that: It also includes a positioning nut corresponding to each of the anchor bolts, each of the positioning nuts is sleeved on the corresponding anchor bolt, and each of the positioning nuts is embedded in the rail support platform and located below the iron pad.

3. The inseparable magnetic fastener system according to claim 2, characterized in that: The upper end surface of each positioning nut is abutted and connected with the lower end surface of the iron pad.

4. The inseparable magnetic fastener system according to claim 3, characterized in that: The lower end surface of the iron backing plate is also provided with a plurality of bosses arranged at intervals.

5. The inseparable magnetic fastener system according to claim 4, characterized in that: The longitudinal section of each boss is trapezoidal, and the horizontal section of each boss gradually decreases from top to bottom.

6. The inseparable magnetic fastener system according to claim 1, characterized in that: The height of the portion where the lower end of the iron pad is embedded in the rail support platform is 5 mm.

7. The inseparable magnetic fastener system according to claim 1, characterized in that: It also includes a spring washer and a flat washer corresponding to each of the anchor bolts, each of the flat washers is located above each of the distance-adjusting buckle plates, the size of each of the flat washers is larger than the size of the elongated hole, and each of the spring washers is located between the corresponding fastening nut and the flat washer.

8. The inseparable magnetic fastener system according to claim 1, characterized in that: It also includes a protective cover corresponding to each of the anchor bolts. Each of the protective covers is provided with a groove with an opening facing downward and for the upper end of the anchor bolt to be embedded.

9. The inseparable magnetic fastener system according to claim 1, characterized in that: The third main body is provided with a through slot adapted to each of the distance-adjusting buckle plates, and the lower end of each of the distance-adjusting buckle plates is inserted into the through slot.

10. The inseparable magnetic fastener system according to claim 1, characterized in that: The height-adjusting pad is provided with a slot for each anchor bolt to pass through, and each slot is vertically connected, parallel to each other in the horizontal direction, and has an opening at one end.

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