Test device for automatic adjustment of track slab under simulated dislocation of tunnel across active fault

Abstract

The present invention provides a test device for automatically adjusting a track slab under the simulation of the dislocation of a tunnel across an active fault. The test device includes: a reaction frame, the reaction frame being a trough structure, along the length direction of the trough structure, there are several segments of linings connected by a frame slide rail, the frame slide rail being perpendicular to the length direction space of the trough, and the lining being slidable along the length direction of the frame slide rail; a track slab is provided on each lining, and adjacent track slabs are connected to each other to form a track for simulating the passage of a train; several thrust components, each thrust component being correspondingly arranged at one end of a lining for pushing the lining to displace in a first direction along the frame slide rail; several automatic return components, the several automatic return components being arranged on the lining for causing the track slab to displace in a second direction after the lining displaces in the first direction, the displacement in the second direction being equal to the displacement in the first direction, and the first direction being opposite to the second direction.

Description

Technical Field

[0001] The present invention belongs to the technical field of rail transit, and particularly relates to a test device for automatically adjusting a track slab under the simulation of the dislocation of a tunnel across an active fault. Background Art

[0002] To adapt to the rapid development of China's economy, a large number of transportation infrastructure such as roads and railways need to be built, inevitably passing through mountains and ridges, and the crossing method usually mainly uses tunnels. China is located between the Circum-Pacific seismic belt and the Eurasian seismic belt, and the fault zones are very active. It is a country with frequent earthquakes. It is inevitable for tunnels to cross active faults. For high-speed railway tunnels, the fault dislocation has an important impact on the tunnels and the facilities inside the tunnels. Since the deformation requirements for the tracks of high-speed railways are very high, relevant measures need to be adopted to realize the real-time adjustment of the deformation of the track structure when the tunnel crosses an active fault.

[0003] That is to say, at present, there is no effective measure for high-speed railway tracks under the condition of being disturbed, which can make the misaligned tracks after being disturbed automatically reset, thus causing safety risks in the operation of high-speed railways;

[0004] It can be seen that providing an effective solution for simulating the situation of tracks under disturbance is a technical problem that needs to be urgently solved by those skilled in the art. Summary of the Invention

[0005] The test device for automatically adjusting a track slab under the simulation of the dislocation of a tunnel across an active fault provided by the present invention is used to solve at least the above technical problems;

[0006] To solve the above problems, in a first aspect of the present invention, there is provided a test device for automatically adjusting a track slab under the simulation of the dislocation of a tunnel across an active fault. The test device includes: a reaction frame, the reaction frame is a trough structure, and along the length direction of the trough structure, there are several segments of linings connected by a frame slide rail. The frame slide rail is perpendicular to the length direction space of the trough, and the lining can slide along the length direction of the frame slide rail; on each of the linings, there is a track slab, and adjacent two track slabs are connected to each other to form a track for simulating the passage of a train; several thrust components, each thrust component is correspondingly arranged at one end of a lining, and is used to push the lining to displace along a first direction of the frame slide rail; several automatic return components, several automatic return components are arranged on the lining, and are used to make the track slab displace along a second direction when the lining displaces in the first direction, the displacement in the second direction is equal to the displacement in the first direction, and the first direction is opposite to the second direction.

[0007] In the first aspect, some of the thrust assemblies are crank handles, which include a force-applying portion and a gripping portion; a gap is reserved between the lining and the reaction frame, a connecting head is provided at the bottom of the lining, and a threaded hole is provided on the connecting head; the force-applying portion of the crank handle is penetrated and provided on the reaction frame and connected to the threaded hole.

[0008] In the first aspect, the connector is connected to the lining in a detachable manner.

[0009] In the first aspect, the automatic return assembly includes: a turntable arranged between each section of the lining and the track plate, the turntable is rotatably connected to the lining, and the turntable is provided with an arc-shaped slide groove arranged around the center of the turntable; a transverse connecting rod, one end of the transverse connecting rod is connected to an adjacent lining, and the other end of the transverse connecting rod is connected to the slide groove of the turntable through a rotating bearing; a push rod, both ends of the push rod are correspondingly arranged on the lining, and the two ends of the push rod can rotate freely corresponding to the connection ends of the lining; the push rod is a threaded rod, and a transmission nut matched with the threaded rod is sleeved on the threaded rod, and the outer side of the transmission nut is connected to the track plate; a transmission gear structure, the gear structure is connected between the push rod and the turntable, and the connection position of the transmission gear structure and the turntable is located on the outer contour of the turntable. When the turntable rotates, the transmission gear is driven to rotate.

[0010] In the first aspect, the transmission gear structure includes: a bevel gear and a wheel with an arc-shaped tooth surface, one end of the wheel is connected to the outer contour of the turntable; the bevel gear is coaxially sleeved on the push rod, and the bevel gear is transmission-connected to the wheel.

[0011] In the first aspect, the two ends of the push rod are connected to the lining via a pair of latches, and the two ends of the push rod and the corresponding latches are freely rotatable.

[0012] In the first aspect, the gripping portion of the crank handle is further provided with an anti-slip layer.

[0013] In the first aspect, the lining is an H-shaped structure; a pair of lining slide rails are arranged in the upper trough body of the H-shaped structure, and the pair of lining slide rails are correspondingly connected to the track plates.

[0014] In the first aspect, the reaction frame is further provided with a plurality of pins; the pins are located at adjacent positions where the lining is connected to the reaction frame through frame slide rails.

[0015] In the first aspect, the threads of the threaded rod segment are arranged with a gradual pitch.

[0016] Beneficial effects: The present invention provides a test device for automatically adjusting the track slab under the simulation of the dislocation of a tunnel across an active fault. The reaction frame provides an installation foundation, and then a lining is arranged on the reaction frame through frame slide rails, and a track slab is arranged on the lining to simulate a real track structure. Then, a thrust component is used to simulate the thrust application component of the tunnel across the active fault. When the thrust component applies thrust and causes one section of the lining to be displaced, the automatic reset component is used to automatically reset the displaced track slab, thereby achieving the technical purpose of automatically adjusting the track slab under the simulation of the dislocation of the fault tunnel, and providing a strong reference for the lining reset in the real tunnel dislocation. Brief Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present specification or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 Structural schematic of the test device for automatically adjusting the track slab under the simulation of the dislocation of a tunnel across an active fault according to the present invention Figure 1 ;

[0019] Figure 2 Structural schematic of the test device for automatically adjusting the track slab under the simulation of the dislocation of a tunnel across an active fault according to the present invention Figure 2 ;

[0020] Figure 3 Structural schematic of the test device for automatically adjusting the track slab under the simulation of the dislocation of a tunnel across an active fault according to the present invention Figure 3 .

[0021] Reference numerals in the drawings:

[0022] 1 - Reaction frame;

[0023] 2 - Crank handle;

[0024] 3 - Lining;

[0025] 4 - Frame slide rail;

[0026] 5 - Track slab;

[0027] 6 - Automatic reset component; 601 - Bevel gear; 602 - Push rod; 603 - Turntable; 604 - Chute; 605 - Transmission nut; 606 - Disk;

[0028] 7 - Pin;

[0029] 8 - Cotter pin. Detailed Embodiments

[0030] The technical solutions in the present invention will be clearly and completely described below with reference to the accompanying drawings. Apparently, the described embodiments are only a part rather than all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present invention shall fall within the protection scope of the present invention.

[0031] Meanwhile, in the embodiments of this specification, when a component is referred to as being "fixed to" another component, it can be directly on the other component or there may also be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component at the same time. When a component is considered to be "disposed on" another component, it can be directly disposed on the other component or there may be an intermediate component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in the embodiments of this specification are for illustrative purposes only and are not intended to limit the present invention.

[0032] Embodiment 1:

[0033] As Figures 1-3 shown, Embodiment 1 of the present invention provides a test device for automatically adjusting a track slab under the dislocation of a simulated cross-active fault tunnel. The test device includes: a reaction frame 1, the reaction frame 1 is a trough structure, and a plurality of segments of linings 3 connected by a frame slide rail 4 are arranged along the length direction of the trough structure. The frame slide rail 4 is perpendicular to the length direction space of the trough. The lining 3 can slide along the length direction of the frame slide rail 4; a track slab 5 is arranged on each lining 3, and two adjacent track slabs 5 are connected to each other to form a track for simulating the passing of a train; a plurality of thrust components, each thrust component is correspondingly arranged at one end of a lining 3 for pushing the lining 3 to displace in a first direction along the frame slide rail 4; a plurality of automatic return components 6, the plurality of automatic return components 6 are arranged on the lining 3 for causing the track slab 5 to displace in a second direction after the lining 3 displaces in the first direction, the displacement in the second direction is equal to the displacement in the first direction, and the first direction is opposite to the second direction.

[0034] Specifically, in one implementation of Example 1 of the present invention, a reaction frame 1 is used to provide an installation foundation, and then a lining 3 is set on the reaction frame 1 through a frame slide rail 4, and a track plate 5 is set on the lining 3 to simulate a real track structure. Then, a thrust assembly is used to simulate the dislocation force application assembly across the active fault tunnel. When the thrust assembly applies thrust to cause one section of the lining 3 to displace, the automatic return assembly 6 is used to automatically return the displaced track plate 5, thereby achieving the technical purpose of automatically adjusting the track plate 5 under the dislocation of the simulated fault tunnel, and providing a strong reference for automatic adjustment of the track plate for real tunnel dislocation.

[0035] In some possible embodiments, some of the thrust assemblies are crank handles 2, which include a force-applying portion and a holding portion; a gap is reserved between the lining 3 and the reaction frame 1, a connecting head is provided at the bottom of the lining 3, and a threaded hole is provided on the connecting head; the force-applying portion of the crank handle 2 is penetrated and arranged on the reaction frame 1, and is connected to the threaded hole.

[0036] In the above embodiment, the specific structure of the crank handle 2 is: an integrated structure consisting of a force-applying portion and a gripping portion, and a bending portion is formed between the force-applying portion and the gripping portion, and the bending portion forms a spatial vertical relationship between the force-applying portion and the gripping portion.

[0037] In some possible implementations, the connector is connected to the lining 3 in a detachable manner.

[0038] Specifically, the connection can be performed by threaded connection.

[0039] In some possible embodiments, the automatic return assembly 6 includes: a turntable 603 arranged between each section of the lining 3 and the track plate 5, the turntable 603 is rotatably connected to the lining 3, and the turntable 603 is provided with an arc-shaped slide groove 604 arranged around the center of the turntable 603; a horizontal connecting rod, one end of the horizontal connecting rod is connected to an adjacent lining 3, and the other end of the horizontal connecting rod is connected to the slide groove 604 of the turntable 603 through a rotating bearing, and the push rod is a threaded rod, and the threaded rod is sleeved with a A transmission nut matched with the threaded rod, the outer side of the transmission nut is connected to the track plate; a push rod 602, the two ends of the push rod 602 are correspondingly arranged on the lining 3, and the two ends of the push rod 602 are freely rotatable corresponding to the connection ends of the lining 3; a transmission gear structure, the gear structure is connected between the push rod 602 and the turntable 603, the connection position of the transmission gear structure and the turntable 603 is located on the outer contour of the turntable 603, and the transmission gear structure is fixedly connected to the push rod 602.

[0040] With regard to the technical solution of the first embodiment, a pair of adjacent linings 3 are connected by a transverse connecting rod, and one end of the transverse connecting rod is slidably connected in the slide groove 604 of the turntable 603 through a bearing. When the lining 3 is displaced, the transverse connecting rod rotates the turntable 603 based on the last position of the lining 3 without disturbance, so that the transmission gear structure connected to the turntable 603 is transmitted, thereby driving the push rod 602 to rotate, and transmitting the transmission nut 605 on the first segment and the second segment of the push rod 602 to adjust the position of the track plate 5.

[0041] In some possible embodiments, the transmission gear structure includes: a bevel gear 601 and a wheel 606 having an arc-shaped tooth surface, one end of the wheel 606 is connected to the outer contour of the turntable 603; the bevel gear 601 is coaxially sleeved on the push rod 602, and the bevel gear 601 is transmission-connected to the wheel 606.

[0042] In the implementation of the above embodiment, for the transmission gear structure, transmission is performed through the bevel gear 601 and the wheel 606 with an arc-shaped tooth surface. The conical surface of the bevel gear 601 and the arc surface of the arc-shaped tooth surface form a transmission match, thereby making the transmission method more matched and stable.

[0043] In some possible implementations, the two ends of the push rod 602 are connected to the lining 3 via a pair of latches 8 , and the two ends of the push rod 602 and the corresponding latches 8 are freely rotatable.

[0044] This is to limit the position of the push rod 602 through a pair of latches 8 and provide a free rotation environment for the push rod 602 through the latches 8.

[0045] In some possible implementations, the gripping portion of the crank handle 2 is further provided with an anti-slip layer.

[0046] The anti-slip layer may be a rubber layer to increase the friction between the palm and the gripping portion when holding the device.

[0047] In some possible implementations, the lining 3 is an H-shaped structure; a pair of lining 3 slide rails are provided in the upper trough body of the H-shaped structure, and the pair of lining 3 slide rails are correspondingly connected to the track plate 5.

[0048] In some possible implementations, a plurality of pins 7 are further provided on the reaction frame 1 ; the pins 7 are located adjacent to the positions where the lining 3 is connected to the reaction frame 1 through the frame slide rails 4 .

[0049] This is to prevent the lining 3 from hitting the side wall of the reaction frame 1 when it is displaced along the frame slide rail 4.

[0050] In some possible embodiments, the thread of the first section is provided with a gradually changing pitch.

[0051] In this way, the callback speed of the track slab 5 can be accelerated by the change of the gradually changing pitch.

[0052] Since the second embodiment and the first embodiment are embodiments under the same inventive concept and some of their structures are completely the same, the structures that are substantially the same as those in the first embodiment in the second embodiment will not be elaborated in detail. For the unelaborated parts, please refer to the first embodiment.

[0053] Finally, it should be noted that the above embodiments are only specific embodiments of the present invention, used to illustrate the technical solutions of the present invention, rather than limiting it. The protection scope of the present invention is not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: any person skilled in the art within the technical scope disclosed by the present invention can still modify the technical solutions recorded in the foregoing embodiments, or can easily think of changes, or make equivalent replacements for some of the technical features; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention. All should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

[0054] Although the embodiments of the present invention have been disclosed as above, it is not limited to only the applications listed in the specification and embodiments. It can be fully applied to various fields suitable for the present invention. For those familiar with the field, additional modifications can be easily made. Therefore, without departing from the general concept defined by the claims and the equivalent scope, the present invention is not limited to the specific details and the examples shown and described herein.

Claims

1. Test device for simulating automatic adjustment of track slab under tunnel dislocation across active faults, It is characterized in that The test device comprises: A reaction frame, wherein the reaction frame is a trough structure, and a plurality of lining sections connected by a frame slide rail are arranged along the length direction of the trough structure, and the frame slide rail is vertical to the length direction of the trough structure, and the lining can slide along the length direction of the frame slide rail; each of the linings is provided with a track plate, and two adjacent track plates are connected to each other to form a track for simulating the passage of a train; A plurality of thrust assemblies, each of which is correspondingly arranged at one end of the lining and is used to push the lining to move along the first direction of the frame slide rail; A plurality of automatic return components are arranged on the lining, and are used to make the track plate displace in a second direction after the lining is displaced in a first direction, wherein the displacement in the second direction is equal to the displacement in the first direction, and the first direction is opposite to the second direction.

2. The test device for simulating automatic adjustment of the lower track plate under the displacement of a tunnel across an active fault according to claim 1, It is characterized in that Some of the thrust assemblies are crank handles, and the crank handles include a force-applying portion and a gripping portion; A gap is reserved between the lining and the reaction frame, a connector is provided at the bottom of the lining, and a threaded hole is provided on the connector; The force-applying portion of the crank handle is penetrated and arranged on the reaction force frame and connected in the threaded hole.

3. The test device for simulating automatic adjustment of the lower track plate under the displacement of a tunnel across an active fault according to claim 2, It is characterized in that The connector is connected to the lining in a detachable manner.

4. The test device for simulating automatic adjustment of the lower track plate under the displacement of a tunnel across an active fault according to claim 1, It is characterized in that The automatic return assembly comprises: A turntable is arranged between each section of the lining and the track plate, the turntable is rotatably connected to the lining, and the turntable is provided with an arc-shaped slide groove arranged around the center of the turntable; A horizontal connecting rod, one end of which is connected to an adjacent lining, and the other end of which is connected to the slide groove of the rotating disk through a rotating bearing; A push rod, both ends of which are correspondingly arranged on the lining, and the two ends of the push rod corresponding to the connection ends of the lining can rotate freely; the push rod is a threaded rod, and a transmission nut matched with the threaded rod is sleeved on the threaded rod, and the outer side of the transmission nut is connected to the track plate; A transmission gear structure is connected between the push rod and the turntable. The connection position between the transmission gear structure and the turntable is located on the outer contour of the turntable. When the turntable rotates, the transmission gear structure is driven to rotate.

5. The test device for simulating automatic adjustment of the lower track plate under the displacement of a tunnel across an active fault according to claim 4, It is characterized in that The transmission gear structure comprises: A bevel gear and a wheel disc having an arc-shaped tooth surface, one end of the wheel disc being connected to the outer contour of the rotating disc; The bevel gear is coaxially sleeved on the push rod, and the bevel gear is drivingly connected to the wheel disc.

6. The test device for automatically adjusting the track slab under the simulated dislocation of a tunnel across an active fault according to claim 5, characterized in that: Both ends of the push rod are correspondingly connected to the lining through a pair of pins, and the two ends of the push rod can rotate freely with respect to the corresponding pins.

7. The test device for automatically adjusting the track slab under the simulated dislocation of a tunnel across an active fault according to claim 2, characterized in that: The gripping part of the crank handle is further provided with an anti-slip layer.

8. The test device for automatically adjusting the track slab under the simulated dislocation of a tunnel across an active fault according to claim 1, characterized in that, the lining is of an H-shaped structure; A pair of lining slide rails are arranged in the upper groove of the H-shaped structure, and the pair of lining slide rails are correspondingly connected to the track slab.

9. The test device for automatically adjusting the track slab under the simulated dislocation of a tunnel across an active fault according to claim 1, characterized in that, A number of pins are further arranged on the reaction frame; The pins are located at adjacent positions where the lining is connected to the reaction frame through the frame slide rails.

10. The test device for automatically adjusting the track slab under the simulated dislocation of a tunnel across an active fault according to claim 4, characterized in that: The thread of the threaded rod is provided with a gradually changing pitch.

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