Temporary limiting monitoring device with variable rigidity for ballastless track slab

Abstract

The utility model discloses a rigidity variable ballastless track plate temporary limiting monitoring device which comprises a base fixed on a roadbed, an inclined strut is arranged in the middle of the base, a stabilizing plate and a transverse baffle are arranged below the inclined strut, and the stabilizing plate and the transverse baffle are respectively fixed with the base. The transverse baffle is inserted into the stabilizing plate and does not make contact with the stabilizing plate, a transverse hydraulic device making transverse contact with the ballastless track plate is arranged at the end of the transverse baffle, a transverse laser range finder is arranged on the transverse baffle, and a force bearing table is arranged at the top of the inclined strut. A vertical hydraulic device in vertical contact with the ballastless track plate is mounted below the bearing table, a vertical laser range finder is arranged on the bearing table, and a transverse pressure sensor and a vertical pressure sensor are arranged at the end of the transverse hydraulic device and the end of the vertical hydraulic device respectively. The temporary limiting device is designed by adopting a steel structure, and compared with a concrete structure, the temporary limiting device does not need to be poured, is convenient to install and arrange, and can be recycled.

Description

Technical Field

[0001] The utility model relates to the field of ballastless track plate deformation treatment, in particular to a ballastless track plate temporary limit monitoring device with variable stiffness. Background Art

[0002] Unlike traditional tracks, ballastless track slabs do not need to use traditional rail sleeper structures to support the tracks. Instead, they realize the track function by installing prefabricated concrete ballastless track slabs on the roadbed. In the deformation treatment of ballastless track slabs, the rope saw method is usually used to separate the ballastless track slabs from the supporting layer. Temporary limit devices are required to fix the ballastless track slabs to limit their lateral and vertical displacements, so as to ensure the safety of trains and passengers during the track adjustment process and maintain the reliability and durability of the track system.

[0003] Traditional temporary limiting devices mostly use concrete piers in conjunction with hydraulic devices for limiting, which results in serious waste of materials for safety reasons. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a temporary limit monitoring device for a ballastless track plate with variable stiffness. The temporary limit device is designed with a steel structure. Compared with a concrete structure, this structural device does not need to be cast, is easy to install and arrange, and can be recycled.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a temporary limit monitoring device for a ballastless track plate with variable stiffness, comprising a base fixed on a roadbed, a diagonal brace is arranged in the middle of the base, a stabilizing plate and a transverse baffle respectively fixed to the base are arranged below the diagonal brace, the transverse baffle is inserted into the stabilizing plate and the transverse baffle and the stabilizing plate do not contact each other, a transverse hydraulic device that contacts the ballastless track plate laterally is arranged at the end of the transverse baffle, a transverse laser rangefinder is arranged on the transverse baffle, a bearing platform is arranged at the top of the diagonal brace, a vertical hydraulic device that contacts the ballastless track plate vertically is installed below the bearing platform, a vertical laser rangefinder is arranged on the bearing platform, and a transverse pressure sensor and a vertical pressure sensor are arranged at the ends of the transverse hydraulic device and the vertical hydraulic device, respectively.

[0006] A further improvement of the technical solution of the utility model is that a limit detector is arranged on the horizontal baffle, a display screen and a data interface are arranged on the limit detector, the data interface is connected to an external computer, and the vertical laser rangefinder, the horizontal laser rangefinder, the horizontal pressure sensor and the vertical pressure sensor are all electrically connected to the limit detector.

[0007] A further improvement of the technical solution of the utility model is that when the stress measured by the lateral pressure sensor and the vertical pressure sensor is greater than a specified value, the limit detector issues an alarm.

[0008] A further improvement of the technical solution of the utility model is that a vertical elastic rubber gasket is arranged inside the vertical hydraulic device, and a transverse elastic rubber gasket is arranged inside the transverse hydraulic device.

[0009] A further improvement of the technical solution of the utility model is that a vertical rib is arranged in the middle of the load-bearing platform (3).

[0010] A further improvement of the technical solution of the utility model is that the left and right sides and the rear end of the base are fixed to the roadbed through a plurality of anchor rods, and the plurality of anchor rods at the rear end are evenly and indirectly arranged.

[0011] Due to the adoption of the above technical solution, the technical progress achieved by the utility model is:

[0012] 1. The utility model adopts a steel structure to design a temporary limit device. Compared with the concrete structure, this structural device does not need to be poured, which reduces the pouring time of the concrete pier, is easy to install and lay, and can be recycled;

[0013] 2. The utility model is equipped with a vertical laser rangefinder and a horizontal laser rangefinder. Since the monitoring device of the utility model is fixed, when the ballastless track plate is displaced, a relative displacement will occur. Since only the vertical laser rangefinder and the horizontal laser rangefinder can detect the track position, height and offset, the position, height and offset of the ballastless track plate can be monitored in real time to ensure the accuracy of the ballastless track plate adjustment;

[0014] 3. The utility model is equipped with a limit detector, which can display the stress state of the ballastless track plate and store the data. When the stress or strain is greater than the specified value, an alarm can be issued;

[0015] 4. The utility model is provided with a limit detector in the vertical direction, so that the ballastless track plate can remain stable in the most dangerous situation;

[0016] 5. The anchor holes on one side of the base of the utility model are evenly and indirectly arranged, which effectively avoids stress concentration and anchoring air-out accidents;

[0017] 6. The provision of vertical and transverse elastic washers in the utility model provides elasticity for the ballastless track plate to prevent the structural rigidity from being too large and causing damage due to huge impulse when a train passes. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view of the device of the utility model;

[0019] Figure 2 It is an oblique view of the device of the utility model;

[0020] Figure 3 This is a cross-sectional view of the vertical hydraulic device of the utility model;

[0021] Figure 4 This is a cross-sectional view of the transverse hydraulic device of the utility model;

[0022] Figure 5 This is an enlarged view of the limit monitor of the utility model;

[0023] Among them, 1. Base; 2. Diagonal brace; 3. Load-bearing platform; 4. Vertical laser rangefinder; 5. Vertical hydraulic device; 6. Ballastless track plate; 7. Anchor rod; 8. Stabilizing plate; 9. Horizontal baffle; 10. Horizontal laser rangefinder; 11. Horizontal hydraulic device; A. Limit monitor; A-1. Display screen; A-2. Data interface; B. Vertical elastic rubber gasket; C. Horizontal elastic rubber gasket. DETAILED DESCRIPTION

[0024] The present invention is further described in detail below in conjunction with the embodiments:

[0025] like Figure 1 to Figure 2 As shown, a temporary limit monitoring device for ballastless track slab with variable stiffness includes a base 1 fixed on the roadbed, and the left and right sides and the rear end of the base 1 are fixed on the roadbed through multiple anchor rods 7, and the multiple anchor rods 7 at the rear end are evenly and indirectly arranged, which effectively avoids the occurrence of stress concentration and anchoring air-out accidents. A diagonal brace 2 is provided in the middle of the base 1, and a stabilizing plate 8 and a transverse baffle 9 respectively fixed to the base 1 are provided below the diagonal brace 2. The transverse baffle 9 is inserted into the stabilizing plate 8 and the transverse baffle 9 and the stabilizing plate 8 do not contact each other, so that the mutual disturbance between the transverse baffle 9 and the stabilizing plate 8 can be reduced.

[0026] A transverse hydraulic device 11 in transverse contact with the ballastless track plate 6 is provided at the end of the transverse baffle 9, a transverse laser rangefinder 10 is provided on the transverse baffle 9, a bearing platform 3 is provided on the top of the diagonal brace 2, and a vertical rib is provided in the middle of the bearing platform 3 to improve the bending stiffness and strength of the structure. A vertical hydraulic device 5 in vertical contact with the ballastless track plate 6 is installed below the bearing platform 3, a vertical laser rangefinder 4 is provided on the bearing platform 3, and a transverse pressure sensor and a vertical pressure sensor are provided at the ends of the transverse hydraulic device 11 and the vertical hydraulic device 5, respectively.

[0027] like Figure 3As shown, a limit detector A is provided on the transverse baffle 9, and a display screen A-1 and a data interface A-2 are provided on the limit detector A. The data interface A-2 is connected to an external computer, and the vertical laser rangefinder 4, the transverse laser rangefinder 10, the transverse pressure sensor and the vertical pressure sensor are all electrically connected to the limit detector A. When the stress measured by the transverse pressure sensor and the vertical pressure sensor is greater than the specified value, the limit detector A sounds an alarm. The vertical laser rangefinder 4, the transverse laser rangefinder 10, the vertical pressure sensor and the transverse pressure sensor are respectively provided in the vertical and transverse directions to monitor the position, height and offset of the ballastless track plate 6 and the stress between the ballastless track plate 6 and the monitoring device of the utility model in real time, so as to ensure the accuracy of the track adjustment, so that it can be accurately restored to the expected position and height when correcting the deviation, so as to maintain the stability and safety of the train operation.

[0028] like Figure 4-Figure 5 As shown, a vertical elastic rubber gasket B is arranged inside the vertical hydraulic device 5, and a transverse elastic rubber gasket C is arranged inside the transverse hydraulic device 11. The arrangement of the vertical elastic rubber gasket B and the transverse elastic rubber gasket C provides elasticity for the ballastless track plate to prevent the structural rigidity from being too large and causing damage due to a huge impulse when a train passes.

[0029] How it works

[0030] The monitoring device of the utility model is installed, and the vertical hydraulic device 5 and the horizontal hydraulic device 11 are independently pressurized, so that the ballastless track plate 6 is subjected to pressure from the side and the top, and the ballastless track plate is fixed by pressure. When the train passes, since the ballastless track plate 6 is separated from the supporting layer below, a certain degree of displacement may occur and the stress it is subjected to will also change. Since the monitoring device of the utility model itself is fixed, when the ballastless track plate 6 is displaced, a relative displacement will occur, because only the vertical laser rangefinder and the horizontal laser rangefinder can detect the track position, height and displacement, the position, height and displacement of the ballastless track plate 6 can be monitored in real time, and the accuracy of the adjustment of the ballastless track plate 6 can be ensured. The external computer is connected to the vertical laser rangefinder 4, the horizontal laser rangefinder 10, the horizontal pressure sensor and the vertical pressure sensor, and the force and displacement of the ballastless track plate are detected in time, and the next step of rectification and maintenance plan is formulated according to its specific situation.

[0031] Most traditional temporary limit devices use concrete piers in conjunction with hydraulic devices for limiting, which results in serious waste of materials for safety reasons. The monitoring device of the utility model is a steel structure device, which is easy to lay out and install, and reduces the pouring time of concrete piers. In terms of vertical limiting, restrictions are added to the ballastless track slab 6 after dissociation, so that the ballastless track slab 6 remains stable under the most dangerous conditions of train operation. The setting of vertical and transverse elastic washers provides elasticity for the ballastless track slab 6 to prevent excessive structural rigidity and damage caused by huge impulse when the train passes. At the same time, laser rangefinders and pressure sensors are set in both vertical and transverse directions to monitor the position, height, offset and stress of the track in real time to ensure the accuracy of track adjustment so that it can accurately return to the expected position and height when correcting the deviation, so as to maintain the stability and safety of train operation.

Claims

1. A temporary limit monitoring device for ballastless track slab with variable stiffness, characterized in that: The invention comprises a base (1) fixed on a roadbed, wherein a diagonal brace (2) is arranged in the middle of the base (1), and a stabilizing plate (8) and a transverse baffle (9) respectively fixed to the base (1) are arranged below the diagonal brace (2), the transverse baffle (9) being inserted into the stabilizing plate (8) and the transverse baffle (9) and the stabilizing plate (8) not contacting each other, a transverse hydraulic device (11) which is in transverse contact with a ballastless track plate (6) is arranged at the end of the transverse baffle (9), and a transverse laser rangefinder (10) is arranged on the transverse baffle (9), a bearing platform (3) is arranged at the top of the diagonal brace (2), and a vertical hydraulic device (5) which is in vertical contact with the ballastless track plate (6) is installed below the bearing platform (3), and a vertical laser rangefinder (4) is arranged on the bearing platform (3), and a transverse pressure sensor and a vertical pressure sensor are respectively arranged at the ends of the transverse hydraulic device (11) and the vertical hydraulic device (5).

2. The device for monitoring temporary position limit of ballastless track slab with variable stiffness according to claim 1, characterized in that: A limit detector (A) is provided on the transverse baffle (9), and a display screen (A-1) and a data interface (A-2) are provided on the limit detector (A), and the data interface (A-2) is connected to an external computer. The vertical laser rangefinder (4), the transverse laser rangefinder (10), the transverse pressure sensor and the vertical pressure sensor are all electrically connected to the limit detector (A).

3. The device for temporarily limiting the position of a ballastless track slab with variable stiffness according to claim 2 is characterized in that: When the stress measured by the lateral pressure sensor and the vertical pressure sensor is greater than a specified value, the limit detector (A) sounds an alarm.

4. The temporary limit monitoring device for ballastless track slab with variable stiffness according to claim 1 is characterized in that: A vertical elastic rubber gasket (B) is arranged inside the vertical hydraulic device (5), and a transverse elastic rubber gasket (C) is arranged inside the transverse hydraulic device (11).

5. The temporary limit monitoring device for ballastless track slab with variable stiffness according to claim 1 is characterized in that: A vertical rib is arranged in the middle of the load-bearing platform (3).

6. The temporary limit monitoring device for ballastless track slab with variable stiffness according to claim 1, characterized in that: The left and right sides and the rear end of the base (1) are fixed to the roadbed via a plurality of anchor rods (7), and the plurality of anchor rods (7) at the rear end are evenly and indirectly arranged.

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