Rail detector walking device

Abstract

The invention discloses a track detector walking device, and relates to the technical field of track detection equipment, two first fixed wheels are rotatably mounted on a first mounting rack, and the two first fixed wheels are distributed at an interval along the advancing direction; a second fixed wheel is rotatably mounted on the second mounting frame, a first connecting piece is arranged on the second mounting frame, a floating wheel assembly is movably arranged on the first connecting piece in the vertical direction, at least one first elastic assembly used for providing vertical tensile force for the floating wheel assembly is arranged on the first connecting piece, and a floating wheel is arranged on the floating wheel assembly; the second fixed wheel and the floating wheel advance along the other steel rail; the first fixed wheel, the second fixed wheel and the floating wheel do not enter the discontinuous gap of the steel rail at the same time, so that the problems that a hand-push type track detector is difficult to pass through a turnout and needs manual intervention in the prior art are solved, and the running stability and continuity of the track detector passing through a turnout area are remarkably improved; and the detection accuracy of the track detector on the turnout area is indirectly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of track detection equipment, in particular to a track detection device running device. Background Art

[0002] At present, most hand-push track detectors adopt a "T"-shaped structure, which uses a three-point positioning method with a tensioning device to achieve stable operation on the track. This method has a simple structure and stable movement, and can achieve stable detection of the basic track. However, when passing through the switch area, due to its own structure and the discontinuity of the track in the switch core area, the detector of this structure type must be manually assisted in adjustment before it can pass through the area, and it will produce violent vibrations when passing through, resulting in inaccurate track detection structure. In order to solve the problem of the difficulty of hand-push track detectors passing through switches, this patent proposes a new type of hand-push track detector running device. Summary of the invention

[0003] The purpose of the present invention is to provide a track detector running device, which solves the problem in the prior art that it is difficult for a hand-pushed track detector to pass through a switch and requires manual intervention, significantly improves the running stability and continuity of the track detector when passing through the switch area, and indirectly improves the detection accuracy of the track detector in the switch area.

[0004] To achieve the above-mentioned object, the present invention provides the following solution: The present invention provides a track detector running device, comprising a frame, a first mounting frame and a second mounting frame distributed on both sides of the frame perpendicular to its traveling direction and moving synchronously;

[0005] Two first fixed wheels are rotatably mounted on the first mounting frame and travel along the same rail, and the two first fixed wheels are spaced apart in the direction of travel;

[0006] A second fixed wheel is rotatably mounted on the second mounting frame, and a first connecting member is provided on the second mounting frame and is spaced apart from the second fixed wheel in the traveling direction, a floating wheel assembly is movably provided on the first connecting member in the vertical direction, and at least one first elastic assembly is provided on the first connecting member for providing vertical tension to the floating wheel assembly, and a floating wheel is provided on the floating wheel assembly; the second fixed wheel and the floating wheel travel along another rail;

[0007] The first fixed wheel, the second fixed wheel and the floating wheel do not enter the intermittent gap of the rail at the same time.

[0008] Preferably, the floating wheel assembly comprises a floating wheel frame movably mounted on the first connecting member in a vertical direction, the first elastic assembly is connected between the first connecting member and the floating wheel frame, and the floating wheel is rotatably mounted on the floating wheel frame.

[0009] Preferably, the first connecting member is provided with at least one vertical slide groove extending in the vertical direction, the vertical slide groove is provided with two first elastic components extending in the same direction therewith, the floating wheel frame is provided with sliding blocks matching the number of the vertical slide grooves, the sliding blocks are movably installed in the vertical slide grooves, and the sliding blocks abut between the two first elastic components.

[0010] Preferably, the first connecting member is provided with a plurality of the vertical slide grooves, and the vertical slide grooves are arranged at intervals horizontally and perpendicular to the traveling direction.

[0011] Preferably, a second connecting member spaced apart from the floating wheel is fixedly connected to a side of the floating wheel frame close to the first connecting member, and the second connecting member is movably mounted on the first connecting member along a vertical direction.

[0012] Preferably, the floating wheel frame is provided with a row wheel assembly, and the row wheel assembly is rotatably connected to the row wheel;

[0013] A tensioning mechanism for rotating the wheel to press against the side wall of the rail is provided between the vehicle frame and the second mounting frame.

[0014] Preferably, the tensioning mechanism comprises a support assembly mounted on the second mounting frame and located on a side of the second mounting frame close to the frame, the support assembly is provided with a movable assembly movably arranged horizontally and perpendicular to the direction of travel, and the movable assembly is mounted on the frame;

[0015] At least one second elastic component is connected between the support component and the moving component, and the second elastic component is used to provide a tensioning force horizontally and perpendicular to the traveling direction to the support component, the second mounting frame and the rowing wheel.

[0016] Preferably, the frame is further provided with a tensioning and locking mechanism, and the tensioning and locking mechanism is used to prevent the support assembly from moving in a horizontal direction and perpendicular to the traveling direction.

[0017] Compared with the prior art, the present invention has achieved the following technical effects:

[0018] The track detector running device disclosed in the present invention, when passing through the discontinuous area of ​​the turnout, for example, the first fixed wheel located on the front side is sunk into the discontinuous gap of the rail, but because the first elastic member tensions the floating wheel assembly and the floating wheel on the first connecting member to keep the floating wheel in normal contact with the rail, the entire device is maintained to maintain the other three wheels, the first fixed wheel, the second fixed wheel and the floating wheel, in normal contact with the rail. After the first fixed wheel located on the front side passes through the discontinuous gap of the rail, the floating wheel is adjusted to a normal state by the first elastic member, and then the first fixed wheel, the second fixed wheel and the floating wheel located on the rear side are adjusted in the same way when they pass through the discontinuous area of ​​the turnout and sunk into the discontinuous gap of the rail, and finally the effect of the entire device passing through the discontinuous area of ​​the turnout is achieved without manual assistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 It is a schematic diagram of the overall structure of a track detector running device in one embodiment disclosed in the present invention;

[0021] Figure 2 This is a schematic diagram of the cooperation between the second mounting frame and the rail in one embodiment disclosed in the present invention;

[0022] Figure 3 This is a schematic diagram of the cooperation between the first mounting frame and the rail in one embodiment disclosed in the present invention;

[0023] Figure 4 It is a structural schematic diagram of a floating frame in an embodiment disclosed in the present invention;

[0024] Figure 5 A structural schematic diagram of a tensioning mechanism in an embodiment disclosed in the present invention

[0025] Figure 6 It is a schematic diagram of the structure of the vehicle brake in one embodiment disclosed in the present invention;

[0026] Among them, 1-frame, 2-first mounting frame, 3-second mounting frame, 4-first fixed wheel, 5-row wheel, 6-row wheel frame, 7-first connecting piece, 8-second connecting piece, 9-floating wheel frame, 10-floating wheel, 11-tensioning mechanism, 12-rail, 13-second fixed wheel, 14-first tensioning rod, 15-second tensioning rod, 16-pull rod, 17-support assembly, 18-slide structure, 19-moving assembly, 20-second elastic assembly, 21-first locking piece, 22-second locking piece, 23-guide frame, 24-locking screw, 25-steel wire, 26-pushing frame, 27-brake, 28-handle. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] The purpose of the present invention is to provide a track detector running device, which solves the problem in the prior art that it is difficult for a hand-pushed track detector to pass through a switch and requires manual intervention, significantly improves the running stability and continuity of the track detector when passing through the switch area, and indirectly improves the detection accuracy of the track detector in the switch area.

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] like Figures 1 to 6As shown, the present invention provides a track detector running device, including a frame 1, a first mounting frame 2 and a second mounting frame 3 distributed on both sides of the frame 1 perpendicular to the travel direction and moving synchronously; two first fixed wheels 4 that both travel along the same rail 12 are rotatably mounted on the first mounting frame 2, and the two first fixed wheels 4 are spaced apart along the travel direction. Preferably, the first mounting frame 2 is connected with two fixed frames by bolts, and the two fixed frames are spaced apart along the travel direction, and the two first fixed wheels 4 are rotatably mounted on the two fixed frames respectively; a second fixed wheel 13 is rotatably mounted on the second mounting frame 3, and preferably, a fixed frame is connected with the second mounting frame 3 by bolts, and the second fixed wheel 13 is rotatably mounted on the fixed frame on the second mounting frame 3, and the second mounting frame 3 is provided with a first connecting member 7 that is spaced apart from the second fixed wheel 13 along the travel direction, and a floating wheel assembly is movably provided on the first connecting member 7 in the vertical direction, and at least one is provided on the first connecting member 7. A first elastic component is used to provide vertical tension to the floating wheel assembly, and the first elastic component can provide a certain buffering effect when the operating state changes to ensure the normal operation of the entire device. A floating wheel 10 is provided on the floating wheel assembly. The present invention uses the floating wheel assembly to be movably installed on the first connecting member 7 in the vertical direction, and the first elastic component provides tension to the floating wheel assembly, so that the floating wheel 10 can float up and down in the vertical direction; the second fixed wheel 13 and the floating wheel 10 travel along another rail 12. Preferably, in the initial state, the first elastic component is in a semi-compressed state, and the initial setting height of the floating wheel 10 is lower than the second fixed wheel 13, so that when the entire track detector running device is set on the track, the first elastic component can maintain a certain tension under the reaction force of the rail 12 to ensure that the floating wheel 10 can normally contact the rail 12; the first fixed wheel 4, the second fixed wheel 13 and the floating wheel 10 do not enter the intermittent gap of the rail 12 at the same time. The track detector running device disclosed in the present invention, when passing through the discontinuous area of ​​the turnout, for example, the first fixed wheel 4 located on the front side is sunk into the discontinuous gap of the rail 12, but because the first elastic member tensions the floating wheel assembly and the floating wheel 10 on the first connecting member 7 to keep the floating wheel 10 in normal contact with the rail 12, the entire device is maintained to maintain the other three wheels of the first fixed wheel 4, the second fixed wheel 13 and the floating wheel 10 in normal contact with the rail 12. When the first fixed wheel 4 located on the front side passes through the discontinuous gap of the rail 12, the floating wheel 10 is adjusted to a normal state by the first elastic member. Subsequently, the first fixed wheel 4 and the second fixed wheel 13 and the floating wheel 10 located on the rear side are adjusted in the same way when passing through the discontinuous area of ​​the turnout and sunk into the discontinuous gap of the rail 12, and finally the effect of the entire device passing through the discontinuous area of ​​the turnout is achieved without manual assistance.

[0031] In a specific embodiment, the floating wheel assembly includes a floating wheel frame 9 movably mounted on the first connecting member 7 in the vertical direction. It should be noted that, in order to ensure that the floating wheel 10 and the second fixed wheel 13 can travel along the same rail 12, the first connecting member 7 is mounted on one end of the second mounting frame 3 in its travel direction, and the floating wheel assembly is movably mounted on the surface of the first connecting member 7 away from the second mounting frame 3 in the vertical direction. Among them, the first elastic component is connected between the first connecting member 7 and the floating wheel frame 9, and the floating wheel 10 is rotatably mounted on the floating wheel frame 9, so that the floating wheel 10 is installed through the floating wheel frame 9, thereby ensuring the effective cooperation between the floating wheel 10 and the first connecting member 7. Preferably, the floating wheel 10 is connected to the floating wheel frame 9 through a wheel axle.

[0032] In a specific embodiment, at least one vertical slide groove extending in the vertical direction is provided on the first connecting member 7, and two first elastic components extending in the same direction are provided in the vertical slide groove. It should be noted that the vertical slide groove and the first elastic components are both installed on the surface of the first connecting member 7 away from the second mounting frame 3. The first elastic component preferably adopts a spring structure, and the floating wheel frame 9 is provided with sliders matching the number of vertical slide grooves, and the sliders are movably installed in the vertical slide grooves, and the sliders are abutted between the two first elastic components, so as to provide synchronous tensioning force to the sliders in the same vertical slide groove through the two first elastic components. In this embodiment, as a preferred embodiment, a plurality of vertical slide grooves are provided on the first connecting member 7, and each vertical slide groove is arranged at intervals along the horizontal and perpendicular direction of travel, and each vertical slide groove is slidably installed with a slider, each slider is connected to the floating wheel frame 9, and first elastic components are provided on both sides of each slider, so as to comprehensively ensure that the first connecting member 7 applies tensioning force in the vertical direction to the floating wheel frame 9.

[0033] In a specific embodiment, a second connecting member 8 is fixedly connected to one side of the floating wheel frame 9 close to the first connecting member 7 and is spaced apart from the floating wheel 10. The second connecting member 8 is movably mounted on the first connecting member 7 along the vertical direction. The second connecting member 8 is arranged between the floating wheel frame 9 and the first connecting member 7 so that a gap is formed between the floating wheel frame 9 and the first connecting member 7 through the second connecting member 8, thereby ensuring that there is a gap between the floating wheel 10 and the first connecting member 7 for their rotation, thereby avoiding positional interference between the floating wheel 10 and the first connecting member 7 during the rotation process.

[0034] In a specific embodiment, a wheel assembly is provided on the floating wheel assembly, and a wheel 5 is rotatably connected to the wheel assembly. Preferably, the wheel assembly is mounted on the floating wheel frame 9, and the specific wheel assembly is provided with a wheel frame 6, for example, the wheel frame 6 is connected to the floating wheel frame 9 by bolts, and the wheel 5 is rotatably mounted on the wheel frame 6, preferably by a wheel axle and bolts. A tensioning mechanism 11 is provided between the vehicle frame 1 and the second mounting frame 3 for the wheel 5 to rotatably abut against the side wall of the rail 12, and the wheel assembly and the wheel 5 are tensioned by the tensioning mechanism 11, so that the wheel 5 and the floating wheel 10 move together to achieve the fit of different rails 12. Preferably, the wheel frame 6 is located on one side of the floating wheel frame 9 along a direction perpendicular to the travel direction, so as to ensure that the wheel 5 can be located on one side of the floating wheel frame 9 and the rail 12 after being rotatably mounted on the wheel frame 6, so as to ensure that the wheel 5 can abut against the side wall of the rail 12 under the tensioning action of the tensioning mechanism 11.

[0035] In a specific embodiment, the tensioning mechanism 11 includes a support assembly 17 mounted on the second mounting frame 3 and located on the side of the second mounting frame 3 close to the frame 1, and a moving assembly 19 is movably provided on the support assembly 17 along the horizontal and perpendicular direction of travel, and the moving assembly 19 is mounted on the frame 1, wherein the support assembly 17 is a frame structure, which is provided with a slide groove structure 18 extending along the horizontal and perpendicular direction of travel, and preferably the support assembly 17 is connected to the second mounting frame 3 by bolts; moreover, the moving assembly 19 is a slider structure, and is slidably engaged in the slide groove structure 18, and preferably the moving assembly 19 is connected to the frame 1 by bolts; at least one second elastic assembly 20 is connected between the support assembly 17 and the moving assembly 19, and preferably the second elastic assembly 20 adopts a spring structure, and the second elastic assembly 20 is used to provide a tensioning force horizontally and perpendicular to the direction of travel to the support assembly 17, the second mounting frame 3 and the row wheel 5, and as preferably, a plurality of second elastic assemblies 20 are provided, and are spaced apart along the direction of travel to enhance the tensioning force on the row wheel 5.

[0036] In the present embodiment, preferably, the row wheel 5 abuts against the side wall of one rail 12 close to the other rail 12, and the row wheel assembly is installed on the side of the floating wheel assembly close to the other rail 12. At this time, the second elastic component 20 needs to be compressed in advance. When the floating wheel assembly is set on the rail 12, the second elastic component 20 can apply a rebound force to the row wheel 5 through the support component 17 and the second mounting frame 3, thereby ensuring that the row wheel 5 abuts against the side wall of the rail 12; as another preferred embodiment, the row wheel 5 abuts against the side wall of one rail 12 away from the other rail 12, and the row wheel assembly is installed on the side of the floating wheel assembly away from the other rail 12. At this time, the second elastic component 20 needs to be stretched in advance. When the floating wheel assembly is set on the rail 12, the second elastic component 20 can apply a tensile force to the row wheel 5 through the support component 17 and the second mounting frame 3, thereby ensuring that the row wheel 5 abuts against the side wall of the rail 12.

[0037] As a preferred embodiment, a plurality of wheel-rowing frames 6 are installed on the first mounting frame 2 and the second mounting frame 3, and each wheel-rowing frame 6 is evenly distributed along the traveling direction, and each wheel-rowing frame 6 is rotatably connected with a wheel-rowing frame 5 for rotating against the side wall of the rail 12. It should be noted that each wheel-rowing frame 6 and wheel-rowing frame 5 on the first mounting frame 2, the second mounting frame 3 and the floating wheel frame 9 are installed between the two rails 12, or installed on the outside of the two rails 12. In order to comprehensively ensure the stability of the entire device during the traveling process. And each wheel-rowing frame 6 can be adjusted in the vertical direction, for example, a plurality of positioning holes are provided in the vertical direction on the first mounting frame 2, the second mounting frame 3 and the floating wheel frame 9, and a mounting hole that can be connected with each positioning hole is provided on the wheel-rowing frame 6, and a bolt structure is detachably connected between the positioning hole and the mounting hole, and then the mounting hole on the wheel-rowing frame 6 is connected with each positioning hole, and then the bolt structure is inserted to realize the adjustment of the wheel-rowing frame 6.

[0038] In a specific embodiment, the tensioning mechanism 11 also includes a tensioning adjustment mechanism, which includes two first tensioning rods 14 and two second tensioning rods 15, the two ends of the first tensioning rod 14 are respectively a force-applying end and a first hinged end, the two ends of the second tensioning rod 15 are respectively a second hinged end and a third hinged end, the third hinged ends of the two second tensioning rods 15 are respectively hinged on both sides of the support assembly 17 along its travel direction, the second hinged ends of the two second tensioning rods 15 are respectively hinged to the first hinged ends of the corresponding first tensioning rods 14, the force-applying ends of the two first tensioning rods 14 extend above the frame 1, and the two A pull rod 16 is connected between the force-applying ends, and the middle parts of the two first tensioning rods 14 are respectively hinged on both sides of the frame 1. In the specific operation process, by applying force to the pull rod 16, the first tensioning rod 14 uses its middle part as a fulcrum to drive its first hinged end to move. Since the first hinged end is hinged with the second hinged end, the second hinged end, the entire second tensioning rod 15 and the support assembly 17 are driven to move. Since the moving assembly 19 is installed on the frame 1, the relative movement between the support assembly 17 and the moving assembly 19 is completed, and the force is applied to the second elastic assembly 20. So that before traveling, by operating the tension adjustment mechanism, the position of the second mounting frame 3 is changed so that the wheel 5 can fully abut against the side wall of the rail 12.

[0039] In a specific embodiment, a tension locking mechanism is further provided on the frame 1, and the tension locking mechanism is used to prevent the support assembly 17 from moving in a horizontal and perpendicular direction to the travel direction. Specifically, the tension locking mechanism includes a steel wire 25, a first locking member 21 and a second locking member 22 both arranged in the slide groove structure 18 of the support assembly 17, and the first locking member 21 and the second locking member 22 are spaced apart along the travel direction of the entire device; the first locking member 21 includes a first main frame, a first locking plate connected to the bottom end of the first main frame, and a locking screw 24 connected to the top end of the first main frame. Preferably, the first locking plate is connected to the first main frame through a bolt structure. The second locking member 22 includes a second main body frame, a second locking plate connected to the bottom end of the second main body frame, and a guide frame 23 connected to the top end of the second main body frame. Preferably, the second locking plate is connected to the second main body frame by a bolt structure; the first locking plate and the second locking plate are respectively abutted against the inner walls of the two sides of the slide groove structure 18 along the direction of travel of the entire device, the middle part of the first main body frame and the middle part of the second main body frame are respectively hinged on the frame 1, one end of the steel wire 25 is locked at the guide frame 23, and is fixedly connected to the first main body frame by a locking screw 24, and the other end is installed on the brake 27, and the brake 27 is installed on the frame 1. Preferably, a vertically extending pushing frame 26 is provided on the frame 1, and handles 28 for operators to push are provided on both sides of the pushing frame 26, and the brake 27 is installed on one side of the handle 28 through the brake 27 connector.

[0040] When a discontinuous area appears on the rail 12 below the floating wheel assembly, the operator operates the tensioning and locking mechanism, and the brake 27 drives the steel wire 25 to contract, driving the first main frame and the second main frame to rotate around the parts hinged to the frame 1 in the middle, so that the first locking plate and the second locking plate respectively abut against the inner walls on both sides of the slide groove structure 18 to generate corresponding friction forces to prevent the support assembly 17 from moving with the second mounting frame 3 in a direction perpendicular to the travel direction, thereby preventing the wheel 5 from moving any more, and avoiding the wheel 5 from being stuck in the gap under the action of the tensioning force when passing through the discontinuous gap of the rail 12, so that the entire device can continue to move forward.

[0041] Adaptive changes made according to actual needs are all within the protection scope of the present invention.

[0042] It should be noted that it is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numerals in the claims should not be regarded as limiting the claims involved.

[0043] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A track detector running device, characterized in that: It comprises a vehicle frame, and a first mounting frame and a second mounting frame which are distributed on both sides of the vehicle frame and move synchronously in a direction perpendicular to the moving direction of the vehicle frame; Two first fixed wheels are rotatably mounted on the first mounting frame and travel along the same rail, and the two first fixed wheels are spaced apart in the direction of travel; A second fixed wheel is rotatably mounted on the second mounting frame, and a first connecting member is provided on the second mounting frame and is spaced apart from the second fixed wheel in the traveling direction, a floating wheel assembly is movably provided on the first connecting member in the vertical direction, and at least one first elastic assembly is provided on the first connecting member for providing vertical tension to the floating wheel assembly, and a floating wheel is provided on the floating wheel assembly; the second fixed wheel and the floating wheel travel along another rail; The first fixed wheel, the second fixed wheel and the floating wheel do not enter the intermittent gap of the rail at the same time.

2. The track detector running device according to claim 1, characterized in that: The floating wheel assembly comprises a floating wheel frame movably mounted on the first connecting member in a vertical direction, the first elastic assembly is connected between the first connecting member and the floating wheel frame, and the floating wheel is rotatably mounted on the floating wheel frame.

3. The track detector running device according to claim 2, characterized in that: The first connecting member is provided with at least one vertical slide groove extending in the vertical direction, and the vertical slide groove is provided with two first elastic components extending in the same direction therewith. The floating wheel frame is provided with sliding blocks matching the number of the vertical slide grooves, and the sliding blocks are movably installed in the vertical slide grooves, and the sliding blocks abut between the two first elastic components.

4. The track detector running device according to claim 3, characterized in that: The first connecting member is provided with a plurality of vertical slide grooves, and the vertical slide grooves are arranged at intervals horizontally and perpendicular to the traveling direction.

5. The track detector running device according to claim 2, characterized in that: A second connecting member spaced apart from the floating wheel is fixedly connected to a side of the floating wheel frame close to the first connecting member, and the second connecting member is movably mounted on the first connecting member along a vertical direction.

6. The track detector running device according to any one of claims 2 to 5, characterized in that: The floating wheel frame is provided with a row wheel assembly, and the row wheel assembly is rotatably connected to the row wheel; A tensioning mechanism for rotating the wheel to press against the side wall of the rail is provided between the vehicle frame and the second mounting frame.

7. The track detector running device according to claim 6, characterized in that: The tensioning mechanism comprises a support assembly mounted on the second mounting frame and located on a side of the second mounting frame close to the frame, a moving assembly is movably provided on the support assembly in a horizontal direction and perpendicular to the traveling direction, and the moving assembly is mounted on the frame; At least one second elastic component is connected between the support component and the moving component, and the second elastic component is used to provide a tensioning force horizontally and perpendicular to the traveling direction to the support component, the second mounting frame and the rowing wheel.

8. The track detector running device according to claim 7, characterized in that: The frame is also provided with a tension locking mechanism, which is used to prevent the support assembly from moving in a horizontal direction and perpendicular to the traveling direction.

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