Connecting device between magnetic levitation track panels

Abstract

The utility model discloses a connecting device between magnetic levitation track panels, which belongs to the technical field of rail transit and comprises main rails, connecting rails arranged at two ends of the main rails and used for connecting the track panels, #-shaped sleepers for connecting the two main rails and fasteners for fixing the #-shaped sleepers. The #-shaped sleepers comprise transverse sleepers used for being connected with the main rail and vertical sleepers perpendicularly connected with the transverse sleepers, and adjusting grooves are formed in the vertical sleepers in the vertical direction. The fastener comprises an adjusting screw rod, an adjusting nut and a distance adjusting block, the adjusting screw rod is arranged in the adjusting groove in a penetrating mode, the adjusting nut is in threaded fit with the adjusting screw rod so as to press the vertical sleeper on the lowering track beam, the distance adjusting block is arranged in the adjusting groove in a sliding mode, and an eccentric hole for the adjusting screw rod to penetrate through is formed in the distance adjusting block; and the transverse position of the eccentric hole on the distance adjusting block is matched with the transverse offset of the #-shaped sleeper. The magnetic levitation track panel connecting device has the advantages that the magnetic levitation track panel connecting device can be adjusted in the transverse direction and the vertical direction, and installation and debugging are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of rail transportation, in particular to a connection device between magnetic levitation rail rows. Background Art

[0002] The expansion joint of low-speed maglev track is a connection device set at the expansion joint position between adjacent rails. It can be divided into type I, II and III expansion joints according to the different expansion and contraction of the rail joints. The layout principle of the expansion joint is proposed by studying the interaction between the rail and the lower foundation, and its structure is optimized. The expansion displacement between the rails at the end of the bridge is mainly affected by the temperature span of the bridge. The longitudinal resistance of the line, the connection layout of the rail and the bearing platform, and the longitudinal horizontal stiffness of the bridge pier have little effect on it, and the expansion creep of the bridge is not considered. When the temperature span of the bridge is greater than 90m, type II and type III expansion joints are required. At present, the expansion structure of type III expansion joints is widely used in medium and low-speed maglev test lines at home and abroad. Type III expansion joints are equipped with a "well"-shaped pillow between two type II expansion joints. The rail where the "well"-shaped pillow is located can freely expand and contract relative to the lower foundation along the longitudinal direction of the line, that is, the type III expansion joint can distribute the expansion and contraction between the rails to four or more expansion joints, which is suitable for installation between rails with relatively large expansion and contraction.

[0003] At present, the Type III joint structure used in the domestic medium and low speed maglev test lines and operating lines is mainly composed of two end rail rows, connecting rails, cross rails, fasteners, etc. The front end rail row is located on the front track beam, the cross rail and the rear end rail row are located on the rear track beam, the connecting rails are overlapped on the rail row and the cross rail respectively, the connecting rail web overlap position is tightened with a pressure plate or countersunk screws, and the connecting rail wing plate adopts a stepped offset design to reduce the impact of the train support wheel passing the track gap. The cross sleeper is buckled on the track beam by fasteners. In this connection structure, the horizontal and vertical limits of the cross sleeper can be extended and retracted along the longitudinal direction, but cannot be adjusted laterally. Utility Model Content

[0004] The utility model provides a magnetic floating rail row connection device to solve the technical problem that the existing joint structure can only be adjusted longitudinally but cannot be adjusted transversely.

[0005] According to one aspect of the utility model, a connection device between magnetic levitation rail rows is provided, comprising a main rail, connecting rails arranged at both ends of the main rail for connecting the rail rows, a cross-shaped sleeper connecting the two main rails, and a fastener for fixing the cross-shaped sleeper; the cross-shaped sleeper comprises a transverse sleeper for connecting the main rail and a vertical sleeper vertically connected to the transverse sleeper, and an adjustment groove is vertically provided on the vertical sleeper; the fastener comprises an adjustment screw passing through the adjustment groove, an adjustment nut threadedly cooperated with the adjustment screw to press the vertical sleeper onto the lowered track beam, and a distance adjustment block slidably arranged in the adjustment groove, the distance adjustment block is provided with an eccentric hole for the adjustment screw to pass through, and the lateral position of the eccentric hole on the distance adjustment block matches the lateral offset of the cross-shaped sleeper.

[0006] Optionally, a limit plate is provided at the bottom of the distance adjusting block, and the limit plate contacts the surface of the vertical sleeper to limit the axial displacement of the distance adjusting block.

[0007] Optionally, the main rail comprises a main rail inner leg, a main rail outer leg, a main rail web and a main rail wing plate, the main rail web is located between the main rail inner leg and the main rail outer leg, and the main rail wing plate is located on the inner side of the main rail inner leg;

[0008] The connecting rail comprises a connecting rail inner leg, a connecting rail outer leg, a connecting rail web and a connecting rail wing plate. The connecting rail web is located between the connecting rail inner leg and the connecting rail outer leg, and the connecting rail wing plate is located on the inner side of the connecting rail inner leg.

[0009] Optionally, grooves are respectively provided at both ends of the main rail web, and the ends of the connecting rail web are inserted into the grooves of the main rail web, and the main rail web and the connecting rail web are fastened and fixed by bolts.

[0010] Optionally, a waist-shaped hole is vertically opened on the upper edge of the connecting rail web, and the bolts connecting the main rail web and the connecting rail web are passed through the waist-shaped hole of the connecting rail web.

[0011] Optionally, a web positioning block is arranged in the groove of the web of the main rail, and a web positioning groove cooperating with the web positioning block is opened on the web of the connecting rail.

[0012] Optionally, a support plate is arranged between the main rail wing plate and the connecting rail wing plate, the support plate includes a vertically arranged support cross plate and a support vertical plate, the main rail wing plate and the connecting rail wing plate are respectively provided with wing plate grooves, and the two ends of the support vertical plate are respectively inserted into the wing plate grooves of the main rail wing plate and the connecting rail wing plate.

[0013] Optionally, two ends of the supporting transverse plate are fixedly connected to the main rail wing plate and the connecting rail wing plate by bolts, and the bolts are symmetrically distributed on both sides of the supporting vertical plate.

[0014] Optionally, an observation hole for observing the gap between the main rail and the connecting rail is opened on the connecting rail web, and the observation hole passes through the connecting rail web from top to bottom.

[0015] Optionally, the supporting transverse plate is provided with a plurality of waist-shaped holes arranged in the vertical direction, and the connecting bolts between the supporting transverse plate and the main rail wing plate and the connecting rail wing plate are arranged one by one correspondingly to the waist-shaped holes on the supporting transverse plate.

[0016] In summary, the present application includes at least one of the following beneficial technical effects:

[0017] 1. By setting an adjustment slot on the vertical sleeper, the adjustment screw and the adjustment block can slide vertically along the adjustment slot, thereby realizing vertical adjustment; according to the lateral offset of the cross-shaped sleeper, eccentric blocks of different specifications can be matched and installed, and the lateral positions of the eccentric holes on the eccentric blocks of different specifications are different, so that the lateral position of the adjustment rod inserted in the eccentric hole is also changed, realizing lateral adjustment, so that the magnetic floating rail row connection device can be adjusted both horizontally and vertically, which is convenient for installation and debugging;

[0018] 2. By overlapping the web of the connecting rail and the web of the main rail and locking them with bolts, both the longitudinal expansion and limiting and the vertical limiting of the connecting rail are ensured. Compared with the type III expansion joint in the prior art, the pressure plate is reduced and the overlapping structure is simplified;

[0019] 3. The main rail wing plate and the connecting rail wing plate are connected by a support plate, which enhances the connection strength between the connecting rail and the main rail and ensures the lateral accuracy of the connecting rail.

[0020] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0022] Figure 1 It is a top view of the connection device between the magnetic levitation rail rows;

[0023] Figure 2 It is a cross-sectional view of the connection device between magnetic levitation rail rows;

[0024] Figure 3 for Figure 2 A local enlarged schematic diagram in FIG.

[0025] Figure 4 for Figure 3 Structural diagram of the middle distance adjustment block;

[0026] Figure 5 for Figure 2 A local enlarged schematic diagram in FIG.

[0027] Figure 6 It is a schematic diagram of the top surface structure of the connecting rail;

[0028] Figure 7 is a structural schematic diagram of the bottom surface of the connecting rail;

[0029] Figure 8 The structural diagram of the main track;

[0030] Fig. 9 A schematic diagram of the structure of the support plate.

[0031] Legend:

[0032] 1. Track row; 2. Connecting rail; 21. Connecting rail inner leg; 22. Connecting rail outer leg; 23. Connecting rail web; 24. Connecting rail wing; 3. Main rail; 31. Main rail inner leg; 32. Main rail outer leg; 33. Main rail web; 34. Main rail wing; 4. T-shaped sleeper; 5. Adjustment slot; 6. Adjustment screw; 7. Adjustment nut; 8. Distance adjustment block; 9. Eccentric hole; 10. Limit plate; 11. Web positioning block; 12. Web positioning slot; 13. Support plate. DETAILED DESCRIPTION

[0033] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. However, the present invention can be implemented in a variety of different ways as defined and covered below.

[0034] The following is combined with Figure 1-9 This application is described in further detail.

[0035] The embodiment of the present application discloses a connection device between magnetic levitation rail rows.

[0036] Reference Figure 1 and Figure 2 The connecting device between the magnetic levitation rail rows 1 includes a main rail 3, connecting rails 2 arranged at both ends of the main rail 3 for connecting the rail row 2 1, a cross-shaped sleeper 4 connecting the two main rails 3, and a fastener for fixing the cross-shaped sleeper 4; the cross-shaped sleeper 4 includes a transverse sleeper for connecting the main rail 3 and a vertical sleeper vertically connected to the transverse sleeper, and an adjustment groove 5 is vertically opened on the vertical sleeper; the fastener includes an adjustment screw 6 passing through the adjustment groove 5, an adjustment nut 7 threadedly matched with the adjustment screw 6 to press the vertical sleeper on the lowered track beam, and a distance adjustment block 8 slidably arranged in the adjustment groove 5, and an eccentric hole 9 for the adjustment screw 6 to pass through is opened on the distance adjustment block 8, and the lateral position of the eccentric hole 9 on the distance adjustment block 8 matches the lateral offset of the cross-shaped sleeper 4.

[0037] This structure allows the position of the vertical sleeper to be finely adjusted by adjusting the screw 6 and the adjusting nut 7, as well as the eccentric hole 9 in the distance adjusting block 8. In specific operation, the adjusting screw 6 passes through the eccentric hole 9 in the distance adjusting block 8, and the vertical sleeper is pressed and fixed by adjusting the nut 7 and the thread of the vertical sleeper. According to the lateral offset of the cross-shaped sleeper, eccentric blocks of different specifications can be matched and installed. The lateral positions of the eccentric holes 9 on the eccentric blocks of different specifications are different, so that the lateral position of the adjusting rod inserted in the eccentric hole 9 is also changed to achieve lateral adjustment. By sliding the position of the adjusting block in the adjusting slot 5, the sleeper can be fine-tuned, thereby ensuring the alignment and connection stability of the main rail 3 and the connecting rail 2. Such a design allows the precise position of the sleeper to be adjusted according to the actual situation during installation, which is convenient for the installation and maintenance of the track, while ensuring the safe and stable operation of the maglev train. The use of the adjusting screw 6 and the adjusting nut 7 provides the necessary tightening force for the track, while the design of the eccentric hole 9 increases the adjustment flexibility of the device in the lateral and vertical directions, allowing engineers to make precise adjustments according to on-site conditions.

[0038] Reference Figure 3 and Figure 4 , a limit plate 10 is provided at the bottom of the distance block 8, and the limit plate 10 contacts the surface of the vertical sleeper to limit the axial displacement of the distance block 8. This limit plate 10 contacts the surface of the vertical sleeper and plays a role in limiting the displacement of the distance block 8 along the axial direction of the sleeper. In actual application, the distance block 8 adjusts its position by sliding in the adjustment slot 5, and the adjustment screw 6 in the eccentric hole 9 is used to finely adjust the lateral position of the distance block 8. The presence of the limit plate 10 ensures that the distance block 8 will not move along the length direction of the sleeper when making these adjustments, thereby maintaining the stability and accuracy of the adjustment.

[0039] The specific setting method is to first adjust the position of the distance block 8 in the adjustment slot 5 according to the required lateral and vertical positions. Then, by tightening or loosening the adjustment screw 6, the vertical sleeper is pressed against the track beam using the adjustment nut 7, while ensuring that the adjustment screw 6 passes through the eccentric hole 9 correctly. The limit plate 10 contacts the vertical sleeper at the bottom to prevent any unexpected axial movement of the distance block 8, which is to ensure stability after installation and durability after adjustment. The purpose of this design is to increase the overall stability and operational reliability of the connection device, prevent the position of the distance block 8 from being offset due to track vibration or other external forces, and ensure the safe and precise docking of the maglev train track system.

[0040] Reference Figure 5-,7, the main rail 3 includes a main rail inner leg 31, a main rail outer leg 32, a main rail web 33 and a main rail wing 34, the main rail web 33 is located between the main rail inner leg 31 and the main rail outer leg 32, and the main rail wing 34 is located on the inner side of the main rail inner leg 31; the connecting rail 2 includes a connecting rail inner leg 21, a connecting rail outer leg 22, a connecting rail web 23 and a connecting rail wing 24, the connecting rail web 23 is located between the connecting rail inner leg 21 and the connecting rail outer leg 22, and the connecting rail wing 24 is located on the inner side of the connecting rail inner leg 21. The web of the main rail 3 is located between the main rail inner leg 31 and the outer leg, and plays a role in connecting and supporting the inner and outer legs, while the main rail wing 34 is installed on the inner side of the main rail inner leg 31, which enhances the structural stability of the main rail 3. Similarly, the web of the connecting rail 2 is also located between its inner leg and outer leg, and the wing is installed on the inner side of the connecting rail inner leg 21. This arrangement enables the main rail 3 and the connecting rail 2 to cooperate with each other in structure, providing a stable connection foundation through the web, while the position design of the wing plate helps to strengthen the close contact between the track components and enhance the overall lateral stability.

[0041] Reference Figure 7 and Figure 8 , grooves are respectively provided at both ends of the main rail web 33, and the ends of the connecting rail web 23 are inserted into the grooves of the main rail web 33, and the main rail web 33 and the connecting rail web 23 are fixed by bolts. During installation, the ends of the connecting rail web 23 are inserted into the grooves of the main rail web 33 to form a physical joint. This joint is then fixed by bolts to ensure a firm connection between the two components and the stability of the structure. The main purpose of this design is to provide a simple and effective way to ensure the docking and fixation between the track segments, while also allowing a certain degree of adjustment to accommodate minor errors during installation. The specific setting method includes first aligning the webs of the main rail 3 and the connecting rail 2 to ensure that the ends of the connecting rail 2 are accurately inserted into the grooves of the main rail 3. Then, the main rail web 33 and the connecting rail web 23 are fastened by bolts passing through the pre-set holes so that the two form a continuous and solid track structure.

[0042] A waist-shaped hole is vertically provided on the connecting rail web 23, and the bolts connecting the main rail web 33 and the connecting rail web 23 are passed through the waist-shaped hole of the connecting rail web 23. This design provides adjustment room through the waist-shaped hole, so that the bolt can move up and down within a certain range, thereby allowing fine position adjustment of the track. The specific setting method is that when the connecting rail web 23 is docked with the main rail web 33, the bolt is first passed through the waist-shaped hole and fixed. In this way, in subsequent use or maintenance, if the position of the track needs to be fine-tuned, the position of the bolt in the waist-shaped hole can be adjusted by loosening and tightening the bolt to achieve vertical position adjustment of the track. Such a design not only makes the installation process more flexible and precise, but also provides the necessary adjustment space to cope with the expansion and contraction of the track caused by temperature changes or other external factors, thereby ensuring the stability and safety of the track.

[0043] A web positioning block 11 is provided in the groove of the main rail web 33, and a web positioning groove 12 cooperating with the web positioning block 11 is provided on the connecting rail web 23. The web positioning block 11 is inserted into the web positioning groove 12 to ensure the precise spatial alignment of the connecting rail web 23 and the main rail web 33. In the specific setting, the web positioning block 11 is first fixed in the groove of the main rail web 33, and then when the connecting rail web 23 is docked with the main rail web 33, it is ensured that the web positioning block 11 is correctly inserted into the web positioning groove 12 on the connecting rail web 23. This coordinated use of positioning blocks and positioning grooves not only simplifies the installation process and improves the installation efficiency, but also enhances the structural stability and torque resistance of the rail interface through precise mechanical positioning, ensuring the stability and safety of the rail under high-speed operation and various external conditions.

[0044] Reference Figure 5 and Fig. 9 A support plate 13 is arranged between the main rail wing plate 34 and the connecting rail wing plate 24. The support plate 13 includes a vertically arranged support transverse plate and a support vertical plate. The main rail wing plate 34 and the connecting rail wing plate 24 are respectively provided with wing plate grooves, and the two ends of the support vertical plate are respectively inserted into the wing plate grooves of the main rail wing plate 34 and the connecting rail wing plate 24. The ends of the support vertical plate are aligned and inserted into the wing plate grooves of the main rail 3 and the connecting rail 2, and then the support plate 13 is fixed to the wing plate with bolts or other fasteners to ensure the firmness of the connection and the overall alignment. The main function of this design is to enhance the connection strength between the main rail 3 and the connecting rail 2 through the interlocking of the physical structure, provide additional lateral and longitudinal support, reduce the impact of vibration and stress caused by the train operation on the track interface, thereby ensuring that the operation of the maglev train is smoother and safer. At the same time, the setting of the support plate 13 also helps to maintain the accurate alignment of the track and improve the overall durability and reliability of the track system.

[0045] The two ends of the support cross plate are fixedly connected to the main rail wing plate 34 and the connecting rail wing plate 24 by bolts, and the bolts are symmetrically distributed on both sides of the support vertical plate. These bolts are symmetrically distributed on both sides of the support vertical plate to ensure the balance and stability of the connection. In the specific setting process, the support cross plate is first placed in the appropriate position between the main rail wing plate 34 and the connecting rail wing plate 24, and then the bolts are passed through the support cross plate and tightened through the symmetrically distributed bolt holes to fix them on the wing plate. The purpose of this design is to provide additional lateral and vertical support, enhance the overall stability and bearing capacity of the track structure, reduce track deformation and movement caused by train operation or external forces, and ensure the alignment accuracy of the track system and the reliability of operation.

[0046] The connecting rail web 23 is provided with an observation hole for observing the gap between the main rail 3 and the connecting rail 2, and the observation hole penetrates the connecting rail web 23 from top to bottom. This observation hole penetrates the connecting rail web 23, providing a direct line of sight, so that maintenance and inspection personnel can easily monitor and evaluate whether the rail gap is within the normal allowable range. When specifically set, the observation hole is located at a strategic position on the connecting rail web 23 to ensure that it does not interfere with the structural integrity of the track while providing the necessary viewing angle.

[0047] The supporting cross plate is provided with a plurality of waist-shaped holes arranged vertically, and the connecting bolts between the supporting cross plate and the main rail wing plate 34 and the connecting rail wing plate 24 are arranged one-to-one in correspondence with the waist-shaped holes on the supporting cross plate. The design purpose of providing a plurality of waist-shaped holes vertically on the supporting cross plate is to provide flexible adjustment options, so that the supporting cross plate can adapt to slight position changes between the main rail wing plate 34 and the connecting rail wing plate 24 during installation and operation. In the specific setting, the waist-shaped holes on the supporting cross plate correspond one-to-one to the connecting bolts installed therethrough, allowing the bolts to slide up and down in the waist-shaped holes, thereby providing room for adjustment in the vertical direction. The main function of this design is to allow the position of the bolts in the waist-shaped holes to adapt to these changes during track installation, maintenance, or track expansion and contraction due to temperature changes and external forces, thereby ensuring a stable connection between the supporting cross plate and the wing plate.

[0048] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A magnetic levitation track row connection device, characterized in that: include: A main rail (3), connecting rails (2) arranged at both ends of the main rail (3) for connecting the rail (2) row (1), a cross-shaped sleeper (4) connecting the two main rails (3), and a fastener for fixing the cross-shaped sleeper (4); The cross-shaped sleeper (4) comprises a transverse sleeper for connecting the main rail (3) and a vertical sleeper vertically connected to the transverse sleeper, and an adjustment groove (5) is vertically provided on the vertical sleeper; The fastener comprises an adjusting screw (6) inserted into the adjusting groove (5), an adjusting nut (7) threadedly matched with the adjusting screw (6) to press the vertical rail sleeper onto the lowered rail beam, and a distance adjusting block (8) slidably arranged in the adjusting groove (5), wherein the distance adjusting block (8) is provided with an eccentric hole (9) for the adjusting screw (6) to be inserted therethrough, and the lateral position of the eccentric hole (9) on the distance adjusting block (8) matches the lateral offset of the crisscross-shaped rail sleeper (4).

2. The magnetic levitation track row connection device according to claim 1, characterized in that: A limiting plate (10) is arranged at the bottom of the distance adjusting block (8), and the limiting plate (10) contacts the surface of the vertical sleeper to limit the axial displacement of the distance adjusting block (8).

3. The magnetic levitation track row connection device according to claim 1, characterized in that: The main rail (3) comprises a main rail inner leg (31), a main rail outer leg (32), a main rail web (33) and a main rail wing plate (34), wherein the main rail web (33) is located between the main rail inner leg (31) and the main rail outer leg (32), and the main rail wing plate (34) is located on the inner side of the main rail inner leg (31); The connecting rail (2) comprises a connecting rail inner leg (21), a connecting rail outer leg (22), a connecting rail web (23) and a connecting rail wing (24); the connecting rail web (23) is located between the connecting rail inner leg (21) and the connecting rail outer leg (22); and the connecting rail wing (24) is located on the inner side of the connecting rail inner leg (21).

4. The magnetic levitation track row connection device according to claim 3, characterized in that: Grooves are respectively formed at both ends of the main rail web (33), and the ends of the connecting rail web (23) are overlapped in the grooves of the main rail web (33). The main rail web (33) and the connecting rail web (23) are locked and fixed by bolts.

5. The magnetic levitation track row connection device according to claim 4, characterized in that: A waist-shaped hole is vertically opened on the connecting rail web (23), and bolts connecting the main rail web (33) and the connecting rail web (23) are inserted into the waist-shaped hole of the connecting rail web (23).

6. The magnetic levitation track row connection device according to claim 4, characterized in that: A web positioning block (11) is arranged in the groove of the main rail web (33), and a web positioning groove (12) cooperating with the web positioning block (11) is provided on the connecting rail web (23).

7. The magnetic levitation track row connection device according to claim 3, characterized in that: A support plate (13) is arranged between the main rail wing plate (34) and the connecting rail wing plate (24), the support plate (13) comprising a vertically arranged support transverse plate and a support vertical plate, the main rail wing plate (34) and the connecting rail wing plate (24) are respectively provided with wing plate grooves, and two ends of the support vertical plate are respectively inserted into the wing plate grooves of the main rail wing plate (34) and the connecting rail wing plate (24).

8. The magnetic levitation track row connection device according to claim 7, characterized in that: The two ends of the supporting transverse plate are respectively fixedly connected to the main rail wing plate (34) and the connecting rail wing plate (24) by bolts, and the bolts are symmetrically distributed on both sides of the supporting vertical plate.

9. The magnetic levitation track row connection device according to claim 8, characterized in that: An observation hole for observing the gap between the main rail (3) and the connecting rail (2) is provided on the connecting rail web (23), and the observation hole penetrates the connecting rail web (23) from top to bottom.

10. The magnetic levitation track row connection device according to claim 9, characterized in that: The supporting transverse plate is provided with a plurality of waist-shaped holes arranged in the vertical direction, and the connecting bolts between the supporting transverse plate and the main rail wing plate (34) and the connecting rail wing plate (24) are arranged one by one correspondingly to the waist-shaped holes on the supporting transverse plate.

Images