A flat tension and compression bearing for a straddle-type light monorail track beam

Abstract

A flat tension and compression support for a straddle-type light monorail track beam. Support blocks are symmetrically and fixedly arranged on both sides of the base. A first bearing plate is inlaid on the inner side wall of the support block, and a pressing plate is fixedly arranged at the upper end. The pressing plate extends inwards to form a lug. A second bearing plate is inlaid on the lower end surface of the lug. A stop block is arranged on the upper surface of the base and a first sliding plate is seated thereon. A second sliding plate is seated on the first sliding plate, and the second sliding plate is fixed on the lower cover plate of the track beam. Third sliding plates are fixedly arranged on the upper end surfaces on both sides of the lower cover plate, and the third sliding plates are located below the second bearing plate. The first bearing plate corresponds to the side wall of the lower cover plate. The invention has a compact design, a simple structure and a small volume. It can not only bear a large bearing capacity and vertical tension, but also realize the free sliding and a certain degree of rotation of the track beam, fully meeting the technical requirements of the straddle-type monorail system.

Description

Technical Field

[0001] The present invention belongs to the technical field of straddle-type light monorail transit systems, and particularly relates to a flat tensile support for a straddle-type light monorail transit track beam. Background Art

[0002] The closest prior art to the present invention is the invention patent of "Tensile Support for Straddle-Type Light Monorail Transit Track Beam" (Patent No.: ZL 201310713578.7) applied by the present applicant before. According to the force characteristics, performance requirements and structural requirements of the straddle-type light monorail track beam support, the following problems can be known for this support:

[0003] (1) The structure of this support has a large volume, a large weight and a high cost.

[0004] (2) The two types of fixed supports and movable supports of this support are realized by the fixed and movable types of the support components, so the structure of the support components is relatively complex.

[0005] (3) The elastic vibration damping structure design of the elastic element of this support is more difficult and the installation space is smaller.

[0006] (4) When installing and maintaining this support on site, it is more difficult to adjust the slip gaps between the elastic element and the slide plate, and between the bearing plate and the track beam.

[0007] (5) This support has no height adjustment function and cannot adjust the height difference between the two supports at the top of the same pier column at the curve section of the straddle-type light monorail double-track line. Summary of the Invention

[0008] The purpose of the present invention is to design a flat tensile and compressive support for a straddle-type light monorail track beam to overcome the above-mentioned deficiencies of the prior art.

[0009] The design scheme of the present invention: A flat tensile and compressive support for a straddle-type light monorail transit track beam includes a base. Support blocks are symmetrically fixed on both sides of the base. A first bearing plate is embedded on the inner side wall of the support block. A pressure plate is fixed at the upper end of the support block, and the pressure plate extends inward to form a lug; a second bearing plate is embedded on the lower end surface of the lug.

[0010] On the upper surface of the base between the support blocks, there are stop blocks and a first sliding plate is seated thereon, and the stop blocks are located around the periphery of the first sliding plate, thereby restricting the sliding range of the first sliding plate on the upper surface of the base through the stop blocks; a second sliding plate is seated on the upper surface of the first sliding plate, and the second sliding plate is fixed to the lower end surface of the lower cover plate of the track beam; third sliding plates are fixed on the upper end surfaces on both sides of the lower cover plate of the track beam, and the third sliding plates are located below the second bearing plate, and there is an appropriate gap b between the lower end surface of the second bearing plate and the upper end surface of the third sliding plate; the first bearing plate corresponds to the side wall of the lower cover plate, and there is an appropriate gap a between the inner end surface of the first bearing plate and the side wall of the lower cover plate.

[0011] Preferably, the support blocks and the pressing plates are fixedly connected to the base as a whole by sequentially passing fastening bolts through the through holes thereon.

[0012] Preferably, both the first bearing plate and the second bearing plate are small-area contact type bearing plates.

[0013] Preferably, the first bearing plate is arranged at the middle position of the inner side wall of the support block, and the second bearing plate is arranged at the middle position of the lower end surface of the lug. [[ID=X]]

[0014] Furthermore, a first cushion plate is provided between the base and the support block, a second cushion plate is provided between the base and the first sliding plate, and a third cushion plate is provided between the support block and the pressing plate.

[0015] The advantages and effects of the present invention are as follows:

[0016] (1) The structure of the present invention is designed compactly, has a simple structure and a small volume, can meet the landscape requirements of the track structure of the straddle-type light monorail system, and reduces the manufacturing cost of the support.

[0017] (2) The present invention can realize the serialization of the support design by appropriately adjusting the number of fastening bolt pairs according to different reaction forces of each support point, and meet the needs of setting supports for the whole line.

[0018] (3) The present invention can meet the design requirements of a height difference between two supports at the top of the same pier column at the curve section of the double-track line.

[0019] (4) The present invention can be combined and set according to conditions such as the support form (single support or double support) and the support type (fixed support or movable support) of the track beam support point, realizing the modular design of the support.

[0020] (5) The present invention can be adjusted on-site during installation and maintenance, reducing the on-site installation and adjustment difficulty, and facilitating later maintenance and repair. [[ID=3X]]

[0021] (6) The present invention designs a small-area contact bearing plate, which can release the degree of freedom of the rotation of the track beam in a small gap, resist the lateral shear force of the track beam, and realize the guiding function of the movable support.

[0022] (7) The present invention has a wide range of applications. It can be installed on the top of a concrete pier, on the top of a steel column, or on a building, and is applicable to both steel track beams and concrete track beams.

[0023] (8) The present invention can be extended and applied to fields such as straddle-type tourist track systems and amusement facilities. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic three-dimensional structure diagram of Embodiment 1 of the present invention,

[0025] Figure 2 is a main view of the structure of Embodiment 1 of the present invention,

[0026] Figure 3 is Figure 2 a sectional view taken along line B-B in

[0027] Figure 4 is Figure 2 an enlarged schematic view of part A in

[0028] Figure 5 is a schematic structure diagram of the first bearing plate and the second bearing plate of the present invention,

[0029] Figure 6 is a schematic installation structure diagram of the second sliding plate and the third sliding plate of the present invention,

[0030] Figure 7 is a schematic structure diagram of the first backing plate and the third backing plate of the present invention,

[0031] Figure 8 is a schematic structure diagram of the second backing plate of the present invention,

[0032] Figure 9 is a schematic top view of the structure of Embodiment 2 of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] The present invention will be described in detail below with reference to the drawings and specific embodiments.

[0034] Embodiment 1: A straddle-type light monorail track beam flat tension and compression movable support, referring to the attached Figure 1-8 .

[0035] The movable bearing includes a base 10. On both sides of the base 10, support blocks 1 are symmetrically fixed. On the inner side walls of the support blocks 1, first bearing plates 1-1 are inlaid. At the upper ends of the support blocks 1, pressing plates 2 are fixed, and the pressing plates 2 extend inward to form lugs 2-1; on the lower end surfaces of the lugs 2-1, second bearing plates 2-2 are inlaid.

[0036] On the upper surface of the base 10 between the support blocks 1, a stop block 9 is provided and a first sliding plate 4 is seated. The stop block 9 is located around the periphery of the first sliding plate 4, and the height of the stop block 9 is lower than the upper surface of the first sliding plate 4. Thus, the sliding range of the first sliding plate 4 on the upper surface of the base 10 is restricted by the stop block 9; on the upper surface of the first sliding plate 4, a second sliding plate 3 is seated, and the second sliding plate 3 is fixed to the lower end surface of the lower cover plate 11-1 of the track beam 11; on the upper end surfaces of both sides of the lower cover plate 11-1 of the track beam 11, third sliding plates 12 are fixed, and the third sliding plates 12 are located below the second bearing plates 2-2, and there is an appropriate gap b between the lower end surface of the second bearing plate 2-2 and the upper end surface of the third sliding plate 12; the first bearing plate 1-1 corresponds to the side wall of the lower cover plate 11-1, and there is an appropriate gap a between the inner end surface of the first bearing plate 1-1 and the side wall of the lower cover plate 11-1.

[0037] Preferably, the support blocks 1 and the pressing plates 2 are fixedly connected to the base 10 as a whole by fastening bolts 6 passing through the through holes thereon in sequence.

[0038] Preferably, both the first bearing plate 1-1 and the second bearing plate 2-2 are small-area contact type bearing plates. The first bearing plate 1-1 is arranged at the middle position of the inner side wall of the support block 1, and the second bearing plate 2-2 is arranged at the middle position of the lower end surface of the lug 2-1.

[0039] In order to facilitate the adjustment of the vertical height of the bearing and the size of the gap b, a first cushion plate 7 is provided between the base 10 and the support block 1, a second cushion plate 8 is provided between the base 10 and the first sliding plate 4, and a third cushion plate 5 is provided between the support block 1 and the pressing plate 2.

[0040] The present invention can be installed on piers, buildings or columns on site according to the needs of line design. The base 10 is an upper cover plate or a pre-embedded steel plate fixed on the top of a pier, a building or a column. The track beam 11 is a steel track beam or a concrete track beam.

[0041] During on-site installation, by using third cushion plates 5 with different thicknesses, the gap b between the second bearing plate 2-2 and the third sliding plate 12 can be adjusted to ensure that the beam end rotation angle of the track beam 11 can be fully released.

[0042] During on-site installation, the vertical height of the bearing is adjusted by using first shims 7 and second shims 8 with different thicknesses to ensure the smoothness of the joints of the track girders 11, minimize the impact when monorail vehicles pass through the track girder joints, and improve the riding comfort.

[0043] For the double-track line of the straddle-type light monorail system, during on-site installation, by adjusting the thicknesses of the first shims 7 and second shims 8 on the two groups of bearings on the left and right lines, the design requirement of the height difference between the two bearings at the top of the same pier column at the curve section of the double-track line is met. Generally, the fulcrum height of the outer bearing at the curve section is greater than that of the inner bearing, so as to meet the design requirements of the track girder bearings for the double-track line.

[0044] After on-site installation is completed, the vertical support of the track girder 11 is realized through the first sliding plate 4, and the horizontal sliding of the track girder 11 is realized through the low friction coefficient between the first sliding plate 4 and the second sliding plate 3; a pair of pull handles are formed by the lugs 2-1 and the two side edges of the lower cover plate 11-1 of the track girder 11 to form the tensile mechanism of the bearing; the beam end rotation angle of the track girder 11 is released through the gap b between the second bearing plate 2-2 and the third sliding plate 12, and the lateral rotation angle of the track girder 11 is released through the gap a between the first bearing plate 1-1 and the lower cover plate 11-1 of the track girder 11, so as to realize all the tension and compression functions of the bearing.

[0045] Furthermore, the first bearing plate 1-1 is designed in a small-area contact form, which can not only ensure the release of the lateral rotation angle of the track girder 11 in the gap a, but also resist the lateral shear force transmitted by the track girder 11 and realize the guiding function of the movable bearing.

[0046] Furthermore, the second bearing plate 2-2 and the third sliding plate 12 respectively form two groups of sliding pairs, and the first sliding plate 4 and the second sliding plate 3 form a group of sliding pairs to jointly realize the sliding function of the movable bearing and release the degrees of freedom of the track girder 11 in the horizontal direction.

[0047] Furthermore, the second bearing plate 2-2 is designed in a small-area contact form to ensure the release of the beam end rotation angle of the track girder 11 in the gap b.

[0048] Embodiment 2: A flat tension and compression fixed bearing for a straddle-type light monorail track girder, referring to the attached Figure 9 .

[0049] The fixed bearing is based on the movable bearing described in Embodiment 1. At both ends of the pressure plate 2, a baffle 13 is provided opposite to the end of the pressure plate 2, and the baffle 13 is reliably fixed to the bearing plate on the track girder 11. By restricting the longitudinal sliding range of the track girder 11 through the contact between the baffle 13 and both ends of the pressure plate 2, all the functions of the fixed bearing can be realized.

[0050] The present invention not only ensures that the bearing can withstand large bearing capacities and vertical tensile forces, but also enables the free sliding and a certain degree of rotation of the track beam, so as to effectively release the temperature stress and uneven settlement generated by the track beam, and can resist the vertical tensile forces and transverse shear forces generated by centrifugal forces, lateral swaying forces and lateral wind forces, etc., fully meeting the technical requirements of the straddle monorail system.

[0051] The above embodiments are only preferred embodiments of the present invention and are not used to limit the scope of implementation of the present invention. Therefore, all equivalent changes made according to the content described in the claims of the present invention should be included within the scope of the claims of the present invention.

Claims

1. A flat tension and compression bearing for a straddle-type light monorail track beam, characterized in that: It includes a base (10), on both sides of which symmetrically fixed support blocks (1) are provided. A first bearing plate (1-1) is inlaid on the inner side wall of the support block (1). A pressing plate (2) is fixed at the upper end of the support block (1), and the pressing plate (2) extends inward to form a lug (2-1); a second bearing plate (2-2) is inlaid on the lower end surface of the lug (2-1). On the upper surface of the base (10) between the support blocks (1), a stop block (9) is provided. A first sliding plate (4) is seated on the upper surface of the base (10), and the stop block (9) is located around the periphery of the first sliding plate (4), thereby restricting the sliding range of the first sliding plate (4) on the upper surface of the base (10) through the stop block (9); a second sliding plate (3) is seated on the upper surface of the first sliding plate (4), and the second sliding plate (3) is fixed on the lower end surface of the lower cover plate (11-1) of the track beam (11); on the upper end surfaces of both sides of the lower cover plate (11-1) of the track beam (11), a third sliding plate (12) is fixed, and the third sliding plate (12) is located below the second bearing plate (2-2), and there is an appropriate gap b between the lower end surface of the second bearing plate (2-2) and the upper end surface of the third sliding plate (12); the first bearing plate (1-1) corresponds to the side wall of the lower cover plate (11-1), and there is an appropriate gap a between the inner end surface of the first bearing plate (1-1) and the side wall of the lower cover plate (11-1). The support block (1) and the pressing plate (2) are fixedly connected to the base (10) as a whole through fastening bolts (6) passing through the through holes thereon in sequence; the first bearing plate (1-1) is arranged at the middle position of the inner side wall of the support block (1), and the second bearing plate (2-2) is arranged at the middle position of the lower end surface of the lug (2-1); a first cushion plate (7) is provided between the base (10) and the support block (1), a second cushion plate (8) is provided between the base (10) and the first sliding plate (4), and a third cushion plate (5) is provided between the support block (1) and the pressing plate (2); the first cushion plate (7), the second cushion plate (8), and the third cushion plate (5) can have different thicknesses.

2. The flat tension and compression bearing of the straddle-type light monorail track beam according to claim 1, characterized in that: Both the first bearing plate (1-1) and the second bearing plate (2-2) are small-area contact type bearing plates.

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