Vertical limiting device of track plate
By designing a track plate limiting device including limiting rods, pressure-bearing screws, support mechanisms and pressure-bearing joints, the problem of inaccurate control of the track plate rise height is solved, and the precise limiting and height adjustment of the track plate is achieved, which is suitable for the application of track plates in tilt situations.
Patent Information
- Application Number
- CN202421360482.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-14
- Publication Date
- 2025-05-09
- Estimated Expiration
- 2034-06-14
AI Technical Summary
It is difficult for the prior art to accurately control the rising height of the track plate, especially when there is an inclination between the track plate and the horizontal plane, the height adjustment of the limit rod is not accurate, making it difficult to achieve the precise limit of the track plate.
A vertical limiting device for the track plate is designed, including a limiting rod, a pressure-bearing screw, a support mechanism and a pressure-bearing joint. The height of the pressure-bearing joint is adjusted through the threaded connection between the pressure-bearing screw and the support mechanism, and the precise limit when the track plate is inclined through the design of arc joints and pressure-bearing joints.
The track plate is accurately adjusted and limiting in the vertical direction to rise height, and can maintain precise contact when the track plate is inclined, improving the control accuracy of limiting.
Smart Images
Figure CN222847129U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of rail transportation, in particular to a device for limiting the position of a track plate. Background Art
[0002] The CRTS III slab track structure includes a concrete base plate, a self-compacting concrete filling layer and a track plate from bottom to top. In the construction of prefabricated track plates, the self-compacting concrete needs to be poured continuously at one time, which places high requirements on the performance indicators of the self-compacting concrete.
[0003] The self-compacting concrete flows into the grouting holes of the track plate, forming a self-compacting concrete filling layer under the track plate. Under the buoyancy of the self-compacting concrete, the track plate gradually rises. When the track plate rises to the height required by the working conditions, it is necessary to limit the track plate with tooling to prevent it from continuing to rise.
[0004] At present, multiple limit rods are used to cross the track plate, and the limit rods are used to press the track plate, so as to limit the rising height of the track plate. However, the current limit rods lack a height adjustment structure, and the control accuracy of preventing the track plate from rising is not high. More importantly, the part where the limit rod contacts the track plate is a horizontally set limit beam, and the track plate at the curved section of the railway has an inclination with the horizontal plane. At this time, in order to make the limit beam fully contact with the track plate, the limit beam needs to be tilted so that the inclination angle of the limit beam is the same as the inclination angle of the track plate, but the current structure of the limit rod makes it difficult to achieve this. Utility Model Content
[0005] The technical problem to be solved by the utility model is: how to accurately control the rising height of the track plate, especially how to accurately control the rising height of the track plate when there is an inclination angle between the track plate and the horizontal plane when forming a self-compacting concrete filling layer.
[0006] In view of the above problems, the technical solution proposed by the utility model is: a vertical limit device for a track plate, including a limit rod, a pressure-bearing screw, a support mechanism and a pressure-bearing joint, a hollow limit beam is arranged on the limit rod, the support mechanism is arranged at the hollow part of the limit beam, the pressure-bearing screw passes through the limit beam and the support mechanism, and the pressure-bearing screw is threadedly connected to the support mechanism; an arc joint is arranged at the lower end of the pressure screw, and the arc joint is embedded in the pressure joint.
[0007] Preferably, the pressure-bearing joint includes a pressure-bearing base plate and a mounting seat, the pressure-bearing base plate is arranged below the mounting seat, and the pressure-bearing base plate and the mounting seat are connected by bolts; a cavity is opened at the lower end of the mounting seat, and a mounting hole penetrating the mounting seat is opened at the upper end of the mounting seat, and the mounting hole is connected to the cavity; the pressure-bearing screw passes through the mounting hole, and the arc-shaped joint is arranged in the cavity.
[0008] Preferably, an inwardly recessed arc-shaped groove is provided on the upper end of the pressure-bearing base plate, and the arc-shaped groove is connected to the cavity of the mounting seat; the upper end of the arc-shaped joint is fixedly connected to the pressure-bearing screw, and the lower end of the arc-shaped joint is provided with a raised arc surface, and the shape of the raised arc surface matches the shape of the arc-shaped groove.
[0009] Preferably, the support mechanism comprises a support frame, which is arranged in the hollow part of the limiting beam, and the upper end and the lower end of the support frame are fixedly connected to the limiting beam by bolts.
[0010] Preferably, the support mechanism further includes a pressure sensor, a hollow installation cavity is provided in the support frame, the pressure sensor is arranged in the hollow installation cavity, and the pressure sensor is fixedly connected to the support frame by bolts.
[0011] Preferably, the limit beam, the support frame and the pressure sensor are all provided with through mounting holes, and the mounting hole of the pressure sensor is also provided with an internal thread, the pressure-bearing screw passes through the mounting holes of the limit beam, the support frame and the pressure sensor, and the pressure-bearing screw is threadedly connected to the pressure sensor.
[0012] The beneficial technical effect of the utility model is as follows: a support mechanism is installed at the hollow limit beam, a pressure screw is passed through the limit beam and the support mechanism, the lower end of the pressure screw is connected to the pressure joint, and the pressure joint is used to support the track plate, thereby limiting the track plate. The pressure screw is threadedly connected to the support mechanism, and rotating the pressure screw can adjust the height of the pressure joint in the vertical direction, thereby accurately adjusting the height of the track plate rising in the vertical direction. An arc-shaped joint is provided at the lower end of the pressure screw, and a hollow installation cavity and an arc-shaped groove are provided in the pressure joint, so that the pressure joint can flexibly rotate around the arc-shaped joint, so that when the track plate is tilted, the bottom of the pressure joint can still fully contact the track plate and accurately limit the height of the track plate rising. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a schematic diagram of the installation of the track plate and the limit rod during construction in Example 1;
[0014] Figure 2 It is a schematic diagram of the overall structure of the first embodiment;
[0015] Figure 3 It is a partial cross-sectional schematic diagram of the first embodiment;
[0016] In the figure: limiting beam 01, base 02, pressure-bearing screw 11, arc joint 12, pressure-bearing bottom plate 13, cavity 14, mounting seat 15, pressure sensor 16, support frame 17, mounting cavity 18, track plate 2, grouting hole 3. DETAILED DESCRIPTION
[0017] The present invention will be further described below in conjunction with the embodiments and drawings: Embodiment 1
[0018] like Figure 1 and Figure 2 As shown, the limit rod includes a limit beam 01 and a base 02. The two ends of the limit beam 01 are fixedly connected to a base 02, and the base 02 is fixedly connected to the base 02 plate, which plays a role in stabilizing the entire limit rod. The limit beam 01 of the limit rod crosses the track plate 2. During construction, the self-compacting concrete flows into the grouting hole 3 of the track plate 2, and a self-compacting concrete filling layer is formed under the track plate 2. The track plate 2 gradually rises under the buoyancy of the self-compacting concrete. The limit beam 01 is a hollow rectangular parallelepiped. Support mechanisms are installed at the hollows at both ends of the limit beam 01. The pressure screw 11 passes through the limit beam 01 and the support mechanism. The lower end of the pressure screw 11 is provided with an arc joint 12, and the arc joint 12 is embedded in the pressure joint. When the track plate 2 rises to a certain height, the track plate 2 and the pressure bottom plate 13 at the lower end of the pressure joint are pressed against each other, and the pressure bottom plate 13 limits the track plate 2 to prevent the track plate 2 from continuing to rise.
[0019] like Figure 2 and Figure 3 As shown, the support mechanism includes a support frame 17 and a pressure sensor 16. The support frame 17 is provided with a mounting hole and a hollow mounting cavity 18. The mounting hole is arranged above the mounting cavity 18, and the mounting hole is connected to the mounting cavity 18. The mounting cavity 18 is a cylindrical cavity 14 with an opening at the bottom, and the mounting hole is a cylindrical through hole with openings at both ends. The diameter of the mounting hole is smaller than the diameter of the mounting cavity 18. The upper and lower ends of the support frame 17 are fixedly connected to the limit beam 01 by bolts. The pressure sensor 16 is arranged in the mounting cavity 18, and the pressure sensor 16 is fixedly connected to the support frame 17 by bolts.
[0020] The pressure-bearing joint includes a pressure-bearing base plate 13 and a mounting seat 15. The lower end of the mounting seat 15 is provided with a cavity 14. The upper end of the mounting seat 15 is provided with a mounting hole that passes through the mounting seat 15, and the mounting hole is connected with the cavity 14. The upper end of the arc joint 12 is provided with an internally threaded mounting hole, and the lower end of the pressure-bearing screw 11 is threadedly connected with the upper end of the arc joint 12. The arc joint 12 is larger than the mounting hole at the upper end of the mounting seat 15, and the diameter of the pressure-bearing screw 11 is smaller than the diameter of the mounting hole. The pressure-bearing screw 11 is first passed through the mounting hole, and then the arc joint 12 is tightened under the pressure-bearing screw 11. The upper end of the pressure-bearing base plate 13 is provided with an inwardly concave arc groove, and the arc groove is connected with the cavity 14 of the mounting seat 15. The upper end of the arc joint 12 is fixedly connected with the pressure-bearing screw 11, and the lower end of the arc joint 12 is provided with a convex arc surface, and the shape of the convex arc surface matches the shape of the arc groove. The pressure-bearing bottom plate 13 is arranged below the mounting seat 15 , and the pressure-bearing bottom plate 13 and the mounting seat 15 are connected by bolts, so that the arc joint 12 is clamped between the pressure-bearing bottom plate 13 and the mounting seat 15 , and the bottom of the arc joint 12 is against the arc groove.
[0021] like Figures 1 to 3 As shown, the limiting beam 01, the support frame 17 and the pressure sensor 16 are all provided with through mounting holes, and the mounting hole of the pressure sensor 16 is also provided with internal threads. The pressure-bearing screw 11 passes through the mounting holes of the limiting beam 01, the support frame 17 and the pressure sensor 16, and the pressure-bearing screw 11 is threadedly connected to the pressure sensor 16, and the diameters of the mounting holes of the limiting beam 01 and the support frame 17 are larger than the diameter of the pressure-bearing screw 11.
[0022] The precise positioning process of the track plate 2 during construction is as follows: first, the limiting beam 01 of the limiting rod is passed across the track plate 2, and the bases 02 at both ends of the limiting rod are fixed to the base 02 plate with bolts. Then, according to the total height of the self-compacting concrete filling layer and the track plate 2, the pressure-bearing screw 11 is rotated to accurately adjust the height of the bottom of the pressure-bearing joint. Then, the self-compacting concrete flows into the grouting hole 3 of the track plate 2 to form a self-compacting concrete filling layer under the track plate 2. Under the buoyancy of the self-compacting concrete, the track plate 2 gradually rises. As the track plate 2 gradually rises, the track plate 2 will hit the bottom of the pressure-bearing joint, and the pressure-bearing screw 11 and the pressure sensor 16 are threaded together, which can enable the pressure-bearing joint to prevent the track plate 2 from rising, thereby accurately limiting the height of the track plate 2.
[0023] When the track plate 2 under construction is at a curved section of the railway, the track plate 2 will be tilted inward. Since the arc shape of the lower end of the arc joint 12 matches the shape of the arc groove of the pressure bottom plate 13, when the track plate 2 gradually rises and touches the bottom of the pressure joint, the pressure joint will automatically rotate so that the bottom of the pressure bottom plate 13 is still in contact with the track plate 2. The pressure joint can still effectively prevent the track plate 2 from rising, thereby accurately limiting the height of the track plate 2 rising.
[0024] Obviously, without departing from the principle of the present invention, several improvements or modifications made should be regarded as within the protection scope of the present invention.
Claims
1. A vertical limit device for a track plate, characterized in that: It includes a limit rod, a pressure-bearing screw, a supporting mechanism and a pressure-bearing joint. A hollow limit beam is arranged on the limit rod, the supporting mechanism is arranged at the hollow part of the limit beam, the pressure-bearing screw passes through the limit beam and the supporting mechanism, and the pressure-bearing screw is threadedly connected to the supporting mechanism; an arc joint is arranged at the lower end of the pressure screw, and the arc joint is embedded in the pressure joint.
2. A vertical limiting device for a track plate according to claim 1, characterized in that: The pressure-bearing joint includes a pressure-bearing base plate and a mounting seat. The pressure-bearing base plate is arranged below the mounting seat, and the pressure-bearing base plate and the mounting seat are connected by bolts; a cavity is opened at the lower end of the mounting seat, and a mounting hole penetrating the mounting seat is opened at the upper end of the mounting seat, and the mounting hole is connected to the cavity; the pressure-bearing screw passes through the mounting hole, and the arc-shaped joint is arranged in the cavity.
3. A vertical limiting device for a track plate according to claim 2, characterized in that: An inwardly recessed arc groove is provided on the upper end of the pressure-bearing base plate, and the arc groove is connected to the cavity of the mounting seat; the upper end of the arc joint is fixedly connected to the pressure-bearing screw, and the lower end of the arc joint is provided with a convex arc surface, and the shape of the convex arc surface matches the shape of the arc groove.
4. A vertical limiting device for a track plate according to claim 3, characterized in that: The supporting mechanism comprises a supporting frame, which is arranged at the hollow part of the limiting beam, and the upper end and the lower end of the supporting frame are fixedly connected with the limiting beam through bolts.
5. A vertical limiting device for a track plate according to claim 4, characterized in that: The supporting mechanism also includes a pressure sensor. A hollow installation cavity is arranged in the supporting frame. The pressure sensor is arranged in the hollow installation cavity. The pressure sensor is fixedly connected to the supporting frame by bolts.
6. A vertical limiting device for a track plate according to claim 5, characterized in that: The limit beam, support frame and pressure sensor are all provided with through mounting holes, and the mounting hole of the pressure sensor is also provided with internal threads, the pressure-bearing screw passes through the mounting holes of the limit beam, support frame and pressure sensor, and the pressure-bearing screw is threadedly connected to the pressure sensor.