A permanent magnet suspension type track beam end compensation structure

Abstract

The present invention discloses a beam end compensation structure for a permanent magnet suspended track beam, which includes a track beam body. At the end of the track beam body, there is a beam end hanging frame. At the inner bottom of the track beam body, there is a lower cover plate for installing a permanent magnet rail, which includes a compensation plate, fastening bolts and adjusting pads. On the compensation plate, there are waist-shaped stepped holes. The fastening bolts pass through the waist-shaped stepped holes to install the compensation plate on the beam end hanging frame. The adjusting pads are arranged between the compensation plate and the lower cover plate. By adopting the above technical solution, the beam-to-beam gap between two adjacent track beams can be adjusted infinitely through the compensation plate, so as to meet the design requirements and solve the problem of the manufacturing tolerance of the track beam length and the matching of the permanent magnet installation.

Description

Technical Field

[0001] The present invention relates to the field of suspended track beams, and particularly to a beam end compensation structure for a permanent magnet suspended track beam. Background Art

[0002] The permanent magnet suspended monorail is a new type of transportation mode with non-contact traction. It has the characteristics of strong climbing ability and small turning radius in terms of performance, and has advantages in ecology, intelligence, safety, and economy compared with trains such as subways and light rails. As a new type of medium- and low-capacity urban monorail transportation system, it has strong adaptability to complex terrains, can have a relatively small curve radius of the line, and has strong climbing ability. It can be selected as the main form of rail transit development in small and medium-sized cities, or as a perfect supplement to the large urban transportation system. The permanent magnet suspended monorail transportation system has broad development prospects in China due to its low construction cost, short cycle, small land occupation, energy conservation and environmental protection, and good comfort.

[0003] Permanent magnets are laid in the permanent magnet suspended monorail track beam. The installation accuracy requirements of the permanent magnets are high, and the control accuracy of the beam gap value is high. The manufacturing tolerance of the track beam length is much larger than the installation tolerance of the permanent magnets, which greatly improves the control requirements for the manufacturing tolerance of the track beam length, increasing the manufacturing cost of the track beam and the difficulty of process control. Summary of the Invention

[0004] In order to solve the problems existing in the prior art, the present invention proposes a compensation structure that can achieve stepless adjustment of the gap between track beams. The technical solution adopted by the present invention is as follows:

[0005] A beam end compensation structure for a permanent magnet suspended track beam, including a track beam body. At the end of the track beam body, there is a beam end hanging frame. At the inner bottom of the track beam body, there is a lower cover plate for installing a permanent magnet rail, including a compensation plate, fastening bolts, and adjusting pads. On the compensation plate, there are waist-shaped stepped holes. The fastening bolts pass through the waist-shaped stepped holes to install the compensation plate on the beam end hanging frame. The adjusting pads are arranged between the compensation plate and the lower cover plate.

[0006] Further, on the side of the compensation plate close to the center of the track beam, there is a limiting plate that can block the adjusting pad.

[0007] On the compensation plate, there are also installation holes for installing the permanent magnet rail.

[0008] Further, the limiting plate and the compensation plate are an integral body.

[0009] Further, the limiting plate is fixed to one side of the compensation plate by bolts.

[0010] Further, one end of the adjusting plate is provided with a bent edge in an L shape, and the bent edge of the adjusting plate is arranged between the compensation plate and the side wall of the track beam body.

[0011] By adopting the above technical solution, the beam-to-beam gap between two adjacent track beams can be adjusted steplessly through the compensation plate, so as to meet the design requirements and solve the problem of the manufacturing tolerance of the track beam length and the matching of the permanent magnet installation. Brief Description of the Drawings

[0012] Figure 1 It is a schematic structural diagram of the present invention;

[0013] Figure 2 It is a partial schematic structural diagram of the present invention;

[0014] Figure 3 It is a schematic structural diagram of Embodiment 1 of the compensation plate;

[0015] Figure 4 It is a schematic structural diagram of Embodiment 2 of the compensation plate;

[0016] Figure 5 It is a schematic structural diagram of the adjusting pad. Detailed Description of the Invention

[0017] In order to better understand the technical solution of the present invention, the technical solution of the present invention will be further described in detail below with reference to the drawings and specific embodiments:

[0018] As Figure 1 The compensation structure shown includes a track beam body 1. The track beam body 1 includes a top plate and a pair of side plates with a U-shaped cross section. A pair of lower cover plates 3 extending inwardly of the track beam body 1 are provided at the bottoms of the two side plates. The lower cover plates 3 are used for installing the permanent magnet rail A. A beam end lifting frame 2 is provided at the end of the track beam body 1. The compensation structure further includes a compensation plate 4, fastening bolts 5 and an adjusting pad 6.

[0019] As Figure 3 and Figure 4The compensation plate 4 shown is provided with a waist-shaped step hole 7 and a mounting hole 8. When installing the compensation plate 4, the fastening bolt 5 passes through the waist-shaped step hole 7 to fix the compensation plate 4 on the beam end hanging frame 2. Since the plane on which the compensation plate 4 is installed on the beam end hanging frame 2 is lower than the lower cover plate 3, when the compensation plate 4 is installed on the beam end hanging frame 2, the upper surface of the compensation plate 4 can be flush with the upper surface of the lower cover plate 3, thereby facilitating the installation of the permanent magnet rail A. Therefore, the height of the compensation plate 4 is the vertical height from the upper plane of the lower cover plate 3 to the upper plane of the compensation plate 4 installed on the beam end hanging frame 2. The waist-shaped step hole 7 is set on the compensation plate 4 so that the top of the fastening bolt 5 can be sunk into the step hole after installation, thereby ensuring the flatness of the compensation plate 4. Due to the limited manufacturing and assembly accuracy of the track beams, when installing the track beams, it is necessary to leave a gap between the track beams as an expansion joint to ensure that the track beams have enough space to heat and elongate while ensuring the normal operation of the vehicle. Therefore, the gap between the beams needs to be strictly controlled. It should not be too small to avoid mutual squeezing between the track beams due to deformation, nor too large to limit the continuity of the permanent magnet rail and affect driving. Therefore, when the manufacturing and installation error accuracy of the track beams cannot be met, the gap between the beams is controlled by adjusting the compensation plate. Since the compensation plate 4 is provided with a waist-shaped step hole 7, the compensation plate 4 can be adjusted along the length direction of the track beam, so as to accurately control the gap between the beams within the calculation range, and the end face of the permanent magnet rail A will not exceed the end face of the compensation plate 4 during installation. In this way, even if the track is heated and elongated, the abutting parts between the track beams are concentrated on the compensation plate 4, so that the permanent magnet rail A will not be squeezed and damaged. In order to provide sufficient support to the compensation plate 4 when it is abutted and avoid displacement of the compensation plate 4 to change the gap between the beams, such as Figure 2 As shown, an adjustment pad 6 is provided between the compensation plate 4 and the lower cover plate 3. After the position of the compensation plate 4 is adjusted, the gap between the compensation plate 4 and the lower cover plate 3 is filled by the adjustment pad 6, so that when the compensation plate 4 is subjected to force, the force can be transmitted to the lower cover plate 3 to prevent the compensation plate 4 from displacement. The mounting hole 8 on the compensation plate 4 is used to install the permanent magnet rail A. Since the position of the compensation plate 4 needs to be adjusted, the position of the mounting hole 8 will also change accordingly. The waist-shaped hole that matches the mounting hole on the permanent magnet rail is a waist-shaped hole. Therefore, even if the position of the mounting hole 8 changes, the permanent magnet rail can still be smoothly installed on the compensation plate 4. Of course, the mounting hole 8 can also be omitted on the compensation plate 4. When the span of the permanent magnet rail is small, one end of it can be fixed on the lower cover plate 3, and the permanent magnet rail located on the compensation plate can be supported by the compensation plate.

[0020] like Figure 1 As shown in the figure, after the permanent magnet rail A is installed, the top of the adjustment pad 6 is restricted by the permanent magnet rail A and cannot move upward, and the end of the adjustment pad 6 close to the side plate of the track beam body 1 is restricted by the side plate and cannot move. Therefore, only the side of the adjustment pad 6 close to the center of the track beam body 1 is not restricted. In order to prevent the adjustment pad 6 from escaping from the gap between the compensation plate 4 and the lower cover plate 3, there are two solutions, such as Figure 3 and Figure 4As shown in the figure, a limit plate 9 is provided on one side of the compensation plate 4 close to the center of the track beam to block the adjustment pad 6. Figure 3 It is a split structure, that is, the limit plate 9 and the compensation plate 4 are connected together by bolts. Figure 4 It is an integral structure, and the limit plate 9 is a part of the compensation plate 4. Another solution is as Figure 5 shown. One end of the adjustment pad 6 close to the side plate of the track beam body 1 is bent to form a bent edge, so that the adjustment pad 6 is integrally L-shaped. When the adjustment pad moves towards the center of the track beam, the bent edge is used for limit blocking to prevent it from falling off.

Claims

1. A permanent magnet suspension type track beam end compensation structure, comprising a track beam body (1), a beam end hanging frame (2) is provided at the end of the track beam body (1), and a lower cover plate (3) for installing a permanent magnet rail is provided at the inner bottom of the track beam body (1), characterized in that: It also includes a compensation plate (4), fastening bolts (5) and adjusting pads (6). A kidney-shaped stepped hole (7) is provided on the compensation plate (4). The fastening bolts (5) pass through the kidney-shaped stepped hole (7) to install the compensation plate (4) on the beam-end hanging frame (2). The adjusting pads (6) are arranged between the compensation plate (4) and the lower cover plate (3). A limiting plate (9) capable of blocking the adjusting pads (6) is provided on one side of the compensation plate (4) close to the center of the track beam. One end of the adjusting pad (6) is provided with a bent edge in an L shape, and the bent edge of the adjusting pad (6) is arranged between the compensation plate (4) and the side wall of the track beam body (1).

2. The permanent magnet suspension type track beam end compensation structure according to claim 1, characterized in that: An installation hole (8) for installing a permanent magnet rail is also provided on the compensation plate (4).

3. The permanent magnet suspension type track beam end compensation structure according to claim 1, characterized in that: The limiting plate (9) and the compensation plate (4) are an integral body.

4. The permanent magnet suspension type track beam end compensation structure according to claim 1, characterized in that: The limiting plate (9) is fixed to one side of the compensation plate (4) by bolts.

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