A simulated load test device for ballastless track
By designing a simulated load testing equipment for ballless tracks, the problem of low testing efficiency of ballless tracks is solved, and fast and accurate testing is achieved, which improves testing efficiency and accuracy.
Patent Information
- Application Number
- CN202411707093.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-27
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2044-11-27
AI Technical Summary
The simulated load test efficiency of ballastless tracks is low. The existing technology requires concrete pouring and track docking on site, resulting in a long construction period and limiting the efficiency of load testing.
A simulated load testing equipment was designed, including a lower buckle, a protective frame, an electric door structure, a transposition measurement structure and a hydraulic telescopic rod. By pre-made parts to be tested and using an electric telescopic table, a rotary transposition mechanism and a wireless measuring module. Carry out dynamic and static pressure testing to improve testing efficiency.
The equipment can quickly perform simulated load tests of ballastless tracks, shorten the construction cycle, improve the testing efficiency, and conduct pressure detection and displacement measurements through wireless measurement modules to ensure the accuracy and reliability of the test.
Smart Images
Figure CN119198367B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of ballastless track detection, in particular to a simulated load testing device for a ballastless track. Background Art
[0002] Ballastless track refers to a track structure that uses an integral foundation such as concrete and asphalt mixture to replace the granular gravel roadbed. Ballastless track is generally composed of rails, sleepers, fasteners, roadbed, switches and other parts. The structural layer poured between the positioned track slab and the concrete base or supporting layer is the under-slab filling layer; the filling material is cement emulsified asphalt mortar, or self-compacting concrete, or other new materials.
[0003] Under normal circumstances, the simulated load test of the ballastless track requires personnel to first perform concrete pouring operations on site to build the ballastless track to be tested, and then connect the sections of the ballastless track together before the load test can be carried out. This means that the construction period of the ballastless track will greatly limit the efficiency of the load test of the ballastless track. Summary of the invention
[0004] The object of the present invention is to provide a simulated load testing device for ballastless track to solve the problems raised in the above background technology.
[0005] To achieve the above object, the present invention provides the following technical solutions:
[0006] A simulated load test device for ballastless track, comprising an embedded frame, a protective frame fixedly mounted on the top of the embedded frame, an opening formed on the protective frame, and further comprising:
[0007] An electric door structure connected to the protection frame, the electric door structure being used to shield the opening of the protection frame;
[0008] A transposition measurement structure connected to the buried frame, the transposition measurement structure includes a rotation transposition mechanism connected to the buried frame, the rotation transposition mechanism is connected to a limit frame movably connected to the buried frame, the limit frame is fixedly connected to an electric telescopic platform, the moving end of the electric telescopic platform is fixedly connected to a support frame, the limit frame is fixedly connected to two groups of L-shaped rails, the limit frame is connected to a movable limit part, the movable limit part is connected to a movable seat movably connected to the support frame, the movable seat is rotatably connected to multiple groups of first rollers, the first rollers are in contact with the L-shaped rails, the movable seat is fixedly connected to a concrete bottom plate, multiple groups of wireless measurement modules are installed in the concrete bottom plate, a wireless signal receiver connected to the wireless measurement module for communication is fixedly installed in the support frame, the concrete bottom plate is fixedly connected to a ballastless track plate through a concrete structure layer, the ballastless track plate is movably connected to two groups of rails through multiple groups of fasteners, and the two groups of rails are arranged parallel to each other;
[0009] A plurality of groups of first hydraulic telescopic rods are connected to the protection frame, and the extension direction of the first hydraulic telescopic rods points to the rails.
[0010] As a further improvement of the present invention: the electric door structure includes two groups of first motors fixedly connected to the protective frame, the output shaft of the first motor is fixedly connected to a gear, the gear is meshingly connected to a rack, the rack is fixedly connected to a door body, the door body is slidingly connected to the buried frame, the door body is rotatably connected to multiple groups of second rollers, the protective frame is fixedly connected to a slot frame, the slot frame is provided with a groove, and the second rollers are rollingly arranged in the groove.
[0011] As a further improvement of the present invention: the rotation and transposition mechanism includes four groups of hydraulic cylinders fixedly connected to the buried frame, the movable end of the hydraulic cylinder is fixedly connected to a bracket, the bracket is fixedly connected to a second motor, and the output shaft of the second motor is fixedly connected to the limit frame.
[0012] As a further improvement of the present invention: the movable limiting part includes multiple groups of second hydraulic telescopic rods fixedly connected to the limiting frame, the movable end of the second hydraulic telescopic rod is fixedly connected to a plug-in frame slidably connected to the L-shaped track, and the plug-in frame is movably connected to multiple groups of recessed frames fixedly connected to the movable seat.
[0013] As a further improvement of the present invention: the wireless measurement module includes a protective shell fixedly installed in a concrete base plate, an independent power supply fixedly installed in the protective shell, a wireless signal transmitter fixedly connected to the protective shell, the wireless signal transmitter is communicatively connected to a pressure sensor fixedly connected to the protective shell, the protective shell is fixed with a displacement sensor, and the displacement sensor is communicatively connected to the wireless signal transmitter.
[0014] As a further improvement of the present invention: a hook groove is provided at the bottom of the movable seat.
[0015] As a further improvement of the present invention: the limiting frame is fixedly connected with an arc plate, the arc plate is slidably connected with a ring rail, and the ring rail is fixedly connected with the bracket.
[0016] Compared with the prior art, the present invention has the following beneficial effects:
[0017] Under normal circumstances, the lower buried frame is buried in a pit dug on the ground, and the present invention is placed between two sets of ballastless tracks that have been laid. The test piece consisting of a concrete bottom plate, a concrete structural layer, a ballastless track plate, fasteners, and a rail is pre-made, and then the towing device drags the moving seat to the L-shaped track, so that the first roller moves onto the L-shaped track, and then the moving limit part limits the movement of the moving seat, and the electric telescopic platform lifts the support frame so that the support frame provides support for the bottom of the moving seat, and then the rotating transposition mechanism drives the limit frame to adjust the direction The ballastless track plate is connected to the two sets of ballastless tracks, and then the personnel connect the rails to the two sets of ballastless tracks laid in advance, so that the accelerated vehicle can drive over the rails. During this period, the wireless measurement module performs pressure detection and displacement measurement operations on the concrete base plate, and the wireless signal receiver performs signal receiving operations on the wireless measurement module. The first hydraulic telescopic rod is used to apply static pressure to the rails, and the rails transmit the pressure to the ballastless track plate through the fasteners, and the ballastless track plate transmits the pressure to the concrete base plate through the concrete structural layer. The present invention pre-fabricates the test piece composed of a concrete base plate, a concrete structural layer, a ballastless track plate, fasteners, and rails, and then moves the completed test piece to a support frame and selectively performs dynamic pressure operation and static pressure operation to improve the test efficiency of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;
[0019] Figure 2 For the present invention Figure 1 A local enlarged schematic diagram of the middle A;
[0020] Figure 3 For the present invention Figure 1 A partial enlarged schematic diagram of point B in the middle;
[0021] Figure 4 It is a schematic diagram of the structure of the electric telescopic table, the support frame, the movable limiter, the movable seat, the concrete bottom plate, the concrete structural layer, the ballastless track plate, and the rails of the present invention;
[0022] Figure 5 It is a schematic diagram of the three-dimensional structure of the electric telescopic table, the support frame, the movable limiter, the movable seat, the concrete bottom plate, the concrete structural layer, and the ballastless track plate of the present invention;
[0023] Figure 6 It is a schematic diagram of the structure in which the moving seat, the first roller, the concrete bottom plate, the wireless measurement module, the wireless signal receiver, the concrete structure layer, the ballastless track plate, the fasteners and the rails cooperate with each other in the present invention;
[0024] Figure 7 The schematic diagram of the structure of the limit frame and the L-shaped track of the present invention
[0025] In the figure: 1, buried frame; 2, protective frame; 4, electric door structure; 5, transposition measurement structure; 6, rotation transposition mechanism; 7, limit frame; 8, electric telescopic table; 9, support frame; 10, L-shaped track; 11, movable limit part; 12, movable seat; 13, first roller; 14, concrete bottom plate; 15, wireless measurement module; 16, wireless signal receiver; 17, concrete structure layer; 18, ballastless track plate; 19, fastener; 20, rail; 21, the first A hydraulic telescopic rod; 22. A first motor; 23. A gear; 24. A rack; 25. A door body; 26. A second roller; 27. A slot frame; 28. A groove; 29. A hydraulic cylinder; 30. A bracket; 31. A second motor; 32. A second hydraulic telescopic rod; 33. A rack; 34. A recessed frame; 35. A protective shell; 36. An independent power supply; 37. A wireless signal transmitter; 38. A pressure sensor; 39. A displacement sensor; 40. A hook slot; 41. An arc plate; 42. A ring rail. DETAILED DESCRIPTION
[0026] The technical solution of the present invention is further described in detail below in conjunction with specific implementation methods.
[0027] Example 1, see Figure 1 to Figure 7 As shown, a simulated load test device for ballastless track includes a buried frame 1, the buried frame 1 is fixedly connected to a control module, a protective frame 2 is fixedly installed on the top of the buried frame 1, the protective frame 2 is fixedly connected to a transparent window, and an opening is opened on the protective frame 2, and further includes:
[0028] An electric door structure 4 connected to the protection frame 2, the electric door structure 4 is used to shield the opening of the protection frame 2;
[0029] A transposition measurement structure 5 connected to the buried frame 1, the transposition measurement structure 5 includes a rotation transposition mechanism 6 connected to the buried frame 1, the rotation transposition mechanism 6 is connected to a limit frame 7 movably connected to the buried frame 1, the limit frame 7 is fixedly connected to an electric telescopic platform 8, the mobile end of the electric telescopic platform 8 is fixedly connected to a support frame 9, the limit frame 7 is fixedly connected to two groups of L-shaped rails 10, the limit frame 7 is connected to a movable limit portion 11, the movable limit portion 11 is connected to a movable seat 12 movably connected to the support frame 9, the movable seat 12 is rotatably connected to multiple groups of first rollers 13, the first rollers 13 are in contact with the L-shaped track 10, and the movable seat 12 is fixedly connected to a concrete A base plate 14, wherein a plurality of wireless measurement modules 15 are installed in the concrete base plate 14, a wireless signal receiver 16 in communication connection with the wireless measurement module 15 is fixedly installed in the support frame 9, the concrete base plate 14 is fixedly connected with a ballastless track plate 18 through a concrete structure layer 17, the concrete structure layer 17 connects the concrete base plate 14 and the ballastless track plate 18 by filling between the concrete base plate 14 and the ballastless track plate 18, the ballastless track plate 18 is movably connected with two groups of rails 20 through a plurality of groups of fasteners 19, the ballastless track plate 18 is detachably connected with the fasteners 19, the fasteners 19 are conventional accessories of the ballastless track, and will not be described in detail here, the two groups of rails 20 are arranged parallel to each other;
[0030] A plurality of first hydraulic telescopic rods 21 are connected to the protection frame 2 , and the extension direction of the first hydraulic telescopic rods 21 points to the rail 20 .
[0031] Under normal circumstances, the buried frame 1 is buried in a pit dug on the ground, and the present invention is placed between two sets of ballastless tracks that have been laid. A test piece consisting of a concrete base plate 14, a concrete structural layer 17, a ballastless track plate 18, fasteners 19, and a rail 20 is prefabricated. The wireless measurement module 15 is placed in the concrete that constructs the concrete base plate 14 during the pouring stage of the concrete base plate 14, and then the towing device drags the moving seat 12 to the L-shaped track 10, so that the first roller 13 moves onto the L-shaped track 10, and then the moving limiter 11 limits the movement of the moving seat 12, and the electric telescopic platform 8 lifts the support frame 9, so that the support frame 9 provides support for the bottom of the moving seat 12, and then The rotation transposition mechanism 6 drives the limit frame 7 to adjust the direction, so that the ballastless track plate 18 is docked with the two sets of ballastless tracks, and then the personnel connect the rails 20 with the two sets of ballastless tracks laid in advance, so that the accelerated vehicle can drive over the rails 20. During this period, the wireless measurement module 15 performs pressure detection and displacement measurement operations on the concrete base plate 14, and the wireless signal receiver 16 performs signal receiving operations on the wireless measurement module 15. The first hydraulic telescopic rod 21 is used to apply static pressure to the rails 20, and the rails 20 transmit the pressure to the ballastless track plate 18 through the fastener 19, and the ballastless track plate 18 transmits the pressure to the concrete base plate 14 through the concrete structure layer 17. The present invention pre-fabricates the test piece composed of the concrete base plate 14, the concrete structure layer 17, the ballastless track plate 18, the fastener 19, and the rails 20, and then moves the manufactured test piece to the support frame 9 and selectively performs dynamic pressure operation and static pressure operation to improve the test efficiency of the present invention.
[0032] In one case of this embodiment, the electric door structure 4 includes two groups of first motors 22 fixedly connected to the protective frame 2, the output shaft of the first motor 22 is fixedly connected to the gear 23, the gear 23 is meshingly connected to the rack 24, the rack 24 is fixedly connected to the door body 25, the door body 25 is slidably connected to the lower buried frame 1, the door body 25 is rotatably connected to multiple groups of second rollers 26, the protective frame 2 is fixedly connected to the slot frame 27, the slot frame 27 is provided with a groove 28, and the second roller 26 is rotatably arranged in the groove 28. The first motor 22 drives the gear 23 to rotate, the rotating gear 23 drives the rack 24 to move, the rack 24 drives the door body 25 to move, and the moving door body 25 drives the second roller 26 to roll along the groove 28.
[0033] In one case of this embodiment, the rotation and transposition mechanism 6 includes four groups of hydraulic cylinders 29 fixedly connected to the buried frame 1, and the movable end of the hydraulic cylinder 29 is fixedly connected to a bracket 30, and the bracket 30 is fixedly connected to a second motor 31, and the output shaft of the second motor 31 is fixedly connected to the limit frame 7. The hydraulic cylinder 29 is used to lift the bracket 30, and the bracket 30 lifts the second motor 31, so that the limit frame 7 rises and detaches from the buried frame 1, and the second motor 31 drives the limit frame 7 to rotate, and the limit frame 7 drives the electric telescopic platform 8 and the L-shaped track 10 to rotate to adjust the direction of the moving seat 12, thereby adjusting the position of the ballastless track plate 18, so that the rail 20 can be docked with the two groups of ballastless tracks laid in advance.
[0034] In one case of this embodiment, the movable limiting part 11 includes a plurality of groups of second hydraulic telescopic rods 32 fixedly connected to the limiting frame 7, the movable end of the second hydraulic telescopic rod 32 is fixedly connected to a plug-in frame 33 slidably connected to the L-shaped track 10, and the plug-in frame 33 is movably connected to a plurality of groups of recessed frames 34 fixedly connected to the movable seat 12. The second hydraulic telescopic rod 32 pushes the plug-in frame 33, and the plug-in frame 33 is inserted into the recessed frame 34 to limit the movement of the movable seat 12.
[0035] In one case of this embodiment, the wireless measurement module 15 includes a protective shell 35 fixedly installed in the concrete base plate 14, an independent power supply 36 is fixedly installed in the protective shell 35, a wireless signal transmitter 37 fixedly connected to the protective shell 35, the wireless signal transmitter 37 is communicatively connected to a pressure sensor 38 fixedly connected to the protective shell 35, and a displacement sensor 39 is fixed to the protective shell 35, and the displacement sensor 39 is communicatively connected to the wireless signal transmitter 37. The data measured by the displacement sensor 39 and the pressure sensor 38 are transmitted to the wireless signal receiver 16 through the wireless signal transmitter 37 to perform data collection operations, and since the wireless measurement module 15 does not need to use wired transmission to transmit data, it is avoided that the line is cast in the concrete base plate 14, and it is also convenient to remove the wireless measurement module 15 later without causing line damage accidents.
[0036] In one case of the present embodiment, a hook groove 40 is provided at the bottom of the mobile seat 12. By providing the hook groove 40 at the bottom of the mobile seat 12, the mobile seat 12 can be dragged and moved by the towing device by hooking the hook groove 40, thereby facilitating the movement of the mobile seat 12.
[0037] Embodiment 2, based on embodiment 1, refer to Figure 1 The limit frame 7 is fixedly connected with an arc plate 41, and the arc plate 41 is slidably connected with a ring rail 42, and the ring rail 42 is fixedly connected to the bracket 30. When the limit frame 7 rotates, the arc plate 41 moves along the ring rail 42, and the ring rail 42 provides rotation support for the arc plate 41.
[0038] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.
Claims
1. A simulated load test device for ballastless track, comprising an embedded frame, a protective frame is fixedly mounted on the top of the embedded frame, and an opening is opened on the protective frame, characterized in that: Also includes: An electric door structure connected to the protective frame, the electric door structure is used to cover the opening of the protective frame, the electric door structure includes two groups of first motors fixedly connected to the protective frame, the output shaft of the first motor is fixedly connected to a gear, the gear is meshed with a rack, the rack is fixedly connected to a door body, the door body is slidably connected to the lower buried frame, the door body is rotatably connected to multiple groups of second rollers, the protective frame is fixedly connected to a slot frame, the slot frame is provided with a groove, and the second roller is rotatably arranged in the groove; A transposition measurement structure connected to the buried frame, the transposition measurement structure includes a rotation transposition mechanism connected to the buried frame, the rotation transposition mechanism is connected to a limit frame movably connected to the buried frame, the limit frame is fixedly connected to an electric telescopic platform, the moving end of the electric telescopic platform is fixedly connected to a support frame, the limit frame is fixedly connected to two groups of L-shaped rails, the limit frame is connected to a movable limit part, the movable limit part is connected to a movable seat movably connected to the support frame, the movable seat is rotatably connected to multiple groups of first rollers, the first rollers are in contact with the L-shaped rails, the movable seat is fixedly connected to a concrete bottom plate, multiple groups of wireless measurement modules are installed in the concrete bottom plate, a wireless signal receiver connected to the wireless measurement module for communication is fixedly installed in the support frame, the concrete bottom plate is fixedly connected to a ballastless track plate through a concrete structure layer, the ballastless track plate is movably connected through multiple groups of fasteners Two groups of rails are connected, and the two groups of rails are arranged parallel to each other. The rotation transposition mechanism includes four groups of hydraulic cylinders fixedly connected to the buried frame, the movable end of the hydraulic cylinder is fixedly connected to a bracket, the bracket is fixedly connected to a second motor, the output shaft of the second motor is fixedly connected to the limit frame, the movable limit part includes multiple groups of second hydraulic telescopic rods fixedly connected to the limit frame, the movable end of the second hydraulic telescopic rod is fixedly connected to a plug-in rack slidably connected to the L-shaped track, the plug-in rack is movably connected to multiple groups of recessed racks fixedly connected to the movable seat, the wireless measurement module includes a protective shell fixedly installed in the concrete bottom plate, an independent power supply is fixedly installed in the protective shell, a wireless signal transmitter fixedly connected to the protective shell, the wireless signal transmitter is communicatively connected to a pressure sensor fixedly connected to the protective shell, the protective shell is fixed with a displacement sensor, and the displacement sensor is communicatively connected to the wireless signal transmitter; A plurality of groups of first hydraulic telescopic rods are connected to the protection frame, and the extension direction of the first hydraulic telescopic rods points to the rails.
2. The simulated load test equipment for ballastless track according to claim 1, characterized in that: A hook groove is arranged at the bottom of the movable seat.
3. The simulated load test equipment for ballastless track according to claim 1, characterized in that: The limiting frame is fixedly connected with an arc plate, the arc plate is slidably connected with a ring rail, and the ring rail is fixedly connected with the bracket.
Citation Information
Patent Citations
Horizontal tension and compression loading system and loading method for ballastless track
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