Vibration-damping joint plate for straddle type single-track turnout
Technical Field
The invention relates to straddle type rail transit, in particular to a vibration-damping joint plate for a straddle type single rail turnout.
Background
The straddle type monorail transit is an important type of urban rail transit, and is suitable for urban passenger transport with small transport capacity, medium transport capacity, short distance, medium distance or longer distance. In the turnout for the straddle type monorail vehicle, the turnout is formed by splicing a plurality of turnout beams, and joint plates are arranged at the end of a walking surface, the end of a guide surface, the end of a stabilizing surface and between the turnout beam and an adjacent track beam of the turnout beam.
The finger-shaped joint plates are mainly adopted among straddle type single-track turnout beam sections at present, and the finger-shaped parts of the finger-shaped joint plates are positioned at beam seams, so that the finger-shaped parts of the finger-shaped joint plates are easy to deform under the loading and unloading action of a train, and fatigue damage can be caused. And when adjacent switch roof beam shrink, the finger-shaped portion of finger-shaped joint board breaks away from, is unfavorable for the driving steadily. The turnout beam is a box-shaped structural part made of steel plates, and can generate larger vibration under the action of train load, and the vibration is more severe particularly at a joint. Therefore, there is a need to design a joint plate for straddle-type single-track turnout, which has strong bearing capacity, can meet the requirement of stable operation and has certain vibration damping performance.
Disclosure of Invention
The invention aims to solve the technical problem of providing a vibration-damping joint plate for a straddle type monorail switch, so that the stability and the comfort of a train passing through the switch are effectively improved, the vertical impact force is reduced, the vibration of the train passing through the joint of the switch is reduced, the driving comfort is ensured, the service life of the joint plate is prolonged, and the maintenance and the repair are convenient.
The technical scheme adopted by the technical problem solved by the invention is as follows:
the invention relates to a vibration-damping joint plate for a straddle type single-track turnout, which is characterized in that: comprises a first joint riding plate, a second joint riding plate, a vibration damping base plate and a base; the first joint riding plate and the second joint riding plate are arranged in parallel and span a beam joint, and a damping base plate and a base are respectively arranged below the left side end part and the right side end part of the first joint riding plate and the second joint riding plate; the plate surfaces of the left side end part and the right side end part of the first joint riding plate are respectively provided with an inward concave long round hole and an inward concave bolt hole, the plate surfaces of the left side end part and the right side end part of the second joint riding plate are respectively provided with an inward concave bolt hole and an inward concave long round hole, and the inward concave long round holes extend along the longitudinal direction; the cross section of the base is L-shaped, the base is provided with a bearing plate and a boss which is raised upwards at the longitudinal inner side, and the top surface of the boss is flush with the surfaces of the first joint riding plate and the second joint riding plate; each base is fixedly connected with the same-side turnout beam, the first joint riding plate and the second joint riding plate are fixedly installed on the corresponding base through the bolt assemblies penetrating through the mounting holes in the concave oblong holes, the concave bolt holes and the vibration damping base plate, gaps are formed among the longitudinal end faces of the left end part of the first joint riding plate and the right end part of the second joint riding plate and the side wall of the boss on the same side, and the longitudinal end faces of the right end part of the first joint riding plate and the left end part of the second joint riding plate are in contact with the side wall of the boss on the same side.
The beneficial effects of the invention are mainly embodied in the following aspects:
the first joint riding plate and the second joint riding plate are adopted to replace finger-shaped joint plates, fatigue damage of the joint plates under the reciprocating load of a train is avoided, the first joint riding plate and the second joint riding plate which are arranged in parallel span a beam joint, and the stability of the train passing through the joint of a turnout beam is guaranteed;
a vibration damping backing plate is arranged between the first joint riding plate and the base and between the second joint riding plate and the bearing plate of the base, so that a certain vibration damping function is ensured when a train passes through a joint of the turnout beam, the mounting height of the joint plates can be adjusted by adjusting the thickness of the vibration damping backing plate, the beam surface of the turnout beam is ensured to be smooth, and the travelling comfort is improved;
thirdly, the plate surfaces of the left end part or the right end part of the first joint riding plate and the second joint riding plate are provided with concave oblong holes which can adapt to the deformation of the turnout beam such as expansion and contraction;
and the first joint riding plate and the second joint riding plate are connected with the base through bolts, and the first joint riding plate and the second joint riding plate are identical in structure and can be exchanged, so that the installation and maintenance of the joint plate of the turnout beam are facilitated.
Drawings
The specification includes the following five figures:
FIG. 1 is a schematic perspective view of a shock absorbing joint plate for a straddle type monorail switch of the present invention;
FIG. 2 is a top view of a shock absorbing joint plate for a straddle type single-track switch of the present invention;
FIG. 3 is a schematic perspective view of a joint plate of a vibration damping joint plate for a straddle-type monorail turnout of the invention;
FIG. 4 is a schematic perspective view of a base of a vibration damping joint plate for a straddle-type monorail switch of the invention;
fig. 5 is a schematic perspective view of a vibration damping shim plate in the vibration damping joint plate for the straddle-type single-track turnout of the present invention.
The figures show the components and corresponding references: the vibration damping device comprises a first joint riding plate 11, a second joint riding plate 12, an inner concave long round hole 13, an inner concave bolt hole 14, a vibration damping base plate 20, a mounting hole 21, a base 30, a reinforcing rib 31, a screw hole 32, a boss 33, a fixing bolt 40, a nut 41, a beam seam 50 and a gap K.
Detailed Description
The invention is further illustrated with reference to the following figures and examples.
Referring to fig. 1 and 2, the vibration damping joint plate for the straddle-type single-track switch of the invention comprises a first joint riding plate 11, a second joint riding plate 12, a vibration damping base plate 20 and a base 30. The first and second joint plates 11 and 12 are arranged in parallel to span the beam joint 50, and the damping pad 20 and the base 30 are respectively provided below the left and right side ends thereof. Referring to fig. 2 and 3, the left end and the right end of the first joint-riding plate 11 are respectively provided with an inward concave slotted hole 13 and an inward concave slotted hole 14, the left end and the right end of the second joint-riding plate 12 are respectively provided with an inward concave slotted hole 14 and an inward concave slotted hole 13, and the inward concave slotted holes 13 extend in the longitudinal direction. Referring to fig. 1 and 4, the base 30 has an L-shaped cross section, and has a bearing plate and a boss 33 protruding upward from the inner side in the longitudinal direction, and the top surface of the boss 33 is flush with the surfaces of the first joint-riding plate 11 and the second joint-riding plate 12. Each base 30 is fixedly connected with the same-side turnout beam, the first seam-riding plate 11 and the second seam-riding plate 12 are fixedly installed on the corresponding base 30 through bolt assemblies which penetrate through the concave oblong holes 13, the concave bolt holes 14 and the installation holes 21 in the vibration damping base plate 20, gaps K are respectively formed between the longitudinal end faces of the left end part of the first seam-riding plate 11 and the right end part of the second seam-riding plate 12 and the side wall of the same-side boss 33, and the longitudinal end faces of the right end part of the first seam-riding plate 11 and the left end part of the second seam-riding plate 12 are in contact with the side wall of the same-side boss 33.
Referring to fig. 1 and 2, the first joint-riding plate 11 and the second joint-riding plate 12 which are arranged in parallel and span a beam seam 50 are adopted to replace the traditional finger-shaped joint plates, so that the fatigue failure of the joint plates under the reciprocating load of a train is avoided. The first joint riding plate 11 and the second joint riding plate 12 are identical in structure and opposite in installation position, namely gaps K between the longitudinal end face and the side wall of the boss 33 on the same side are respectively arranged on the left side and the right side of the beam joint 50, and therefore stability of a train passing through a turnout beam joint can be effectively guaranteed. Set up concave slotted hole 13 on the left side tip or the right side tip face of first joint board 11, second joint board 12, the switch roof beam can drive the joint board and move along the slotted hole, satisfies the flexible requirement of switch roof beam, and the length of concave slotted hole 13 can be adjusted according to the flexible displacement of switch roof beam.
Referring to fig. 1, be equipped with damping backing plate 20 between the loading board of first joint board 11 and second joint board 12 and base 30 of riding, guarantee that the train has certain damping function when passing through the switch roof beam seam, can adjust the mounting height of joint board through the thickness of adjustment damping backing plate 20 in addition, guarantee that the beam surface of switch roof beam levels, improves the travelling comfort. The vibration damping shim plate 20 is made of a plastic or rubber material.
Referring to fig. 1, the bolt assembly includes a fixing bolt 40 and a nut 41, a screw hole 32 corresponding to each of the concave oblong holes 13 and the concave bolt holes 14 is provided on the bearing plate of the base 30, a lower portion of the fixing bolt 40 is installed in the screw hole 32, and the nut 41 is installed at an upper end of the fixing bolt 40 and is located in the concave oblong hole 13 or the concave bolt hole 14.
Referring to fig. 1 and 4, reinforcing ribs 31 welded integrally with the bottom plate of the base 30 are transversely arranged at intervals below the plate surface of the bearing plate. The base 30 is bolted or welded with the turnout beam on the same side, so that the base 30 can be reliably connected with the turnout beam.
The foregoing is illustrative of the principles of the shock absorbing gusset for a straddle type monorail switch of the present invention and is not intended to limit the invention to the exact construction and application shown and described, and accordingly, all modifications and equivalents that may be resorted to are intended to fall within the scope of the invention.