A hand-pushed track profile and unevenness detection device

Abstract

The present invention discloses a hand-push track profile and unevenness detection device, which belongs to the field of rail transit measurement. The device comprises a crossbeam, a first running side frame arranged at one end of the crossbeam, a second running side frame arranged at the other end of the crossbeam, a plurality of first wheel groups arranged on the first running side frame, and a plurality of second wheel groups arranged on the second running side frame. The device has high operating efficiency, high detection accuracy, strong data management and analysis functions, and is easy to assemble.

Description

Technical Field

[0001] The invention relates to the field of rail transit measurement, and in particular to a hand-push track profile and unevenness detection device. Background Art

[0002] With the rapid development of high-speed railways and urban rail transit, the line mileage has increased cumulatively, and the operating environment has also become diverse. As the main load-bearing structure of the vehicle body, the track is significantly impacted by the wheelset, resulting in serious problems such as corrugation, cracks, peeling, loose fasteners, and track deformation on the track surface, posing a threat to the safe operation of the vehicle body. In order to prevent the occurrence of such malicious incidents, necessary monitoring methods must be used to conduct a comprehensive analysis of the track status.

[0003] The existing track status detection equipment has two modes: portable devices and track inspection trains. Large track inspection trains can effectively detect track unevenness, track profile and track damage status, thereby ensuring the safe operation of the vehicle body, but the cost is high and it is suitable for periodic inspections. It cannot grasp the line changes in time, and there is still room for improvement in maintenance decision-making. Portable equipment is suitable for daily inspections and scheduled inspections within the section, which is convenient for targeted status detection. The existing portable functions are simple and the detection accuracy needs to be improved. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention proposes a hand-push track profile and unevenness detection device, and the specific technical solution is as follows:

[0005] A hand-pushed track profile and unevenness detection device comprises a crossbeam, a first running side frame arranged at one end of the crossbeam, a second running side frame arranged at the other end of the crossbeam, a plurality of first wheel groups arranged on the first running side frame, and a plurality of second wheel groups arranged on the second running side frame;

[0006] The first wheel group includes a first mounting shaft arranged on the first running side frame and a first running wheel arranged on the first mounting shaft, the second wheel group includes a second mounting shaft arranged on the second running side frame and a second running wheel arranged on the second mounting shaft, a rotary encoder is provided on the second mounting shaft and located on the outside of the second running side frame, a 1D sensor is provided in the second running side frame and located above the second running wheel, and multiple groups of 1D sensors are also provided in the second running side frame and located between the two groups of second running wheels.

[0007] Preferably, a guide mechanism is provided on the first installation shaft and located on the inner side of the first running side frame, and on the second installation shaft and located on the inner side of the second running side frame;

[0008] The guide mechanism comprises guide frames respectively arranged on the first installation shaft and the second installation shaft and guide wheels sleeved on the outer side of the guide frames. Baffles are respectively arranged on both sides of the guide frames, and a reset spring is arranged between the guide wheels and the baffle frames.

[0009] Preferably, a traverse slide rail arranged perpendicular to the track is distributed circumferentially on the outer side of the guide frame, and an auxiliary traverse wheel slidably connected to the traverse slide rail is provided between the guide wheel and the guide frame.

[0010] Preferably, an anti-slip wheel is provided on the outer side of the second running side frame, and the anti-slip wheel is hinged to the second running side frame.

[0011] Preferably, an anti-slip spring is provided between the anti-slip wheel and the outer side of the second running side frame.

[0012] Preferably, a pull rod rotatably connected to the cross beam is provided at the middle end of the cross beam.

[0013] Preferably, the crossbeam is provided with a control system respectively connected to the rotary encoder and the 1D sensor.

[0014] Preferably, the crossbeam is composed of a plurality of mutually hinged foldable beams, and locking mechanisms are provided between the foldable beams.

[0015] Preferably, the locking mechanism comprises a locking rod and a locking block respectively arranged on adjacent foldable beams, and the locking rod is rotatably connected to the foldable beam.

[0016] Preferably, a tilt sensor is provided on the inner side of the second running side frame.

[0017] The present invention has the following beneficial effects:

[0018] The present invention installs a rotary encoder and a 1D sensor on the second mounting axle frame and the second running side frame respectively, so that when the tester pulls the crossbeam and the first running wheel and the second running wheel slide along the track, the rotary encoder measures the rotation speed of the second running wheel, and uses the 1D sensors arranged at different positions on the second running side frame to perform non-contact detection of the rails, obtain the position coordinates of the track through the principle of laser triangulation, and obtain the three-dimensional profile of the track through coordinate transformation. At the same time, the present invention performs profile and unevenness detection on long-distance tracks, and can be used in conjunction with various types of rail maintenance engineering vehicles such as rail milling vehicles and rail grinding vehicles to achieve real-time dynamic measurement of rail profiles during operation, thereby achieving comparison of rail profiles before and after operation, timely monitoring of operation results, and greatly improving the efficiency of detection work. In addition, the present invention has high operating efficiency, accurate detection accuracy, strong data management and analysis functions, and is easy to assemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention;

[0020] Figure 2 is a schematic structural diagram of the first wheel set in the present invention;

[0021] Figure 3 is a cross-sectional view of the first wheel set in the present invention;

[0022] Figure 4 is a schematic structural diagram of the second wheel set in the present invention;

[0023] Figure 5 is a cross-sectional view of a second wheel set in the present invention;

[0024] Figure 6 is a cross-sectional view of the second running side frame of the present invention;

[0025] Figure 7 for Figure 1 A partial enlarged view of the middle A;

[0026] Figure 8 for Figure 1 A partial enlarged view of point B in the middle. DETAILED DESCRIPTION

[0027] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0028] Example

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. 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.

[0031] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not advocated in subsequent drawings.

[0032] In the description of the present invention, it should be noted that the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0033] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "disposed", "connected", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] Some embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0035] See also Figures 1 to 8 The present invention includes a beam 1 for a tester to pull, a first running side frame 2 provided at one end of the beam 1 and located above the track, and a second running side frame 3 provided at the other end of the beam 1 and located above the track. A nodding mechanism is provided between the beam 1 and the first running side frame 2. The nodding mechanism is a commonly used nodding mechanism in the existing mechanical field, so it will not be described here. The spacing between the first running side frame 2 and the second running side frame 3 is the same as the spacing of the standard track. A pull rod 9 rotatably connected to the beam 1 is provided at the middle end of the beam 1. The tester can pull the pull rod 9 to make the device slide along the track and detect the track profile. The beam 1 is composed of four mutually hinged foldable beams 11, and a locking mechanism 12 for locking the foldable beams 11 is provided between adjacent foldable beams 11. The locking mechanism 12 includes a locking rod 121 and a locking block 122 respectively arranged on adjacent foldable beams 11. A locking spring is sleeved on the outer side of the locking rod 121. The locking rod 121 is rotatably connected to the foldable beam 11 and a locking groove is provided in the locking block 122. The tester rotates the locking rod 121 and pushes it into the locking groove of the locking block 122 to realize the locking function of the adjacent foldable beams 11.

[0036] See also Figure 2 to Figure 3Two sets of first wheel groups 4 are provided on the first running side frame 2 and above the track. The first wheel group 4 includes a first mounting shaft 41 provided on the first running side frame 2 and a first running wheel 42 provided on the first mounting shaft 41. The first running wheel 42 is slidably connected to the track. A guide mechanism 7 for guiding the first running wheel 42 is provided on the first mounting shaft 41 and located inside the first running side frame 2. The guide mechanism 7 includes a guide frame 71 provided on the first mounting shaft 41 and located inside the first running side frame 2 and a guide wheel 72 sleeved on the outside of the guide frame 71. Baffles 73 are provided on both sides of the guide frame 71. The guide wheel 72 can slide along the guide frame 71 between the two sets of baffles 73. A reset spring 74 for resetting the guide wheel 72 is provided between the guide wheel 72 and the baffle 73. When the track turns, the inner side of the track changes position and pushes the guide wheel 72 to move left or right. As a result, the guide wheel 72 generates a guiding force on the first running wheel during movement, and the first running wheel turns in coordination with its own deflection force, thereby ensuring the accurate running position of the first running wheel on the track.

[0037] See also Figure 3 A traverse slide rail 75 arranged perpendicular to the track is distributed on the outer side of the guide frame 71, and an auxiliary traverse wheel 76 slidably connected to the traverse slide rail 75 is arranged between the guide wheel 72 and the guide frame 71. The present invention reduces the friction between the guide wheel 72 and the guide frame 71 through the cooperation between the auxiliary traverse wheel 76 and the traverse slide rail 75, thereby reducing the energy consumption of the guide wheel 72 to overcome the friction, thereby improving the guiding ability of the guide wheel 72.

[0038] See also Figure 4 to Figure 5 The second wheel group 5 includes a second mounting shaft 51 disposed on the second running side frame 3 and a second running wheel 52 disposed on the second mounting shaft 51. The first mounting shaft 41 and the second mounting shaft 51 are both sleeved with bearings on the outside. A rotary encoder 6 for testing the rotation speed of the second running wheel 52 is disposed on the second mounting shaft 51 and located on the outside of the second running side frame 3. The present invention installs the rotary encoder 6 on the second running side frame 3 so that when the tester pulls the crossbeam 1 to slide along the track, the rotary encoder 6 measures the rotation speed of the second running wheel 52. A 1D sensor 53 is disposed in the second running side frame 3 and located above the second running wheel 52. Two groups of 1D sensors 53 are also disposed in the second running side frame 3 and located between the two groups of second running wheels 52. An inclination sensor 13 for testing the inclination angle of the second running side frame 3 is disposed on the inside of the second running side frame 3.

[0039] See also Figure 5 to Figure 6The crossbeam 1 is provided with a control system 10 connected to a rotary encoder 6 and a 1D sensor 53 respectively. The control system 10 in the present invention is a control circuit composed of a single chip microcomputer as the core, including an information acquisition system, a data processing system and a data storage system. It is a prior art, and those skilled in the art should understand its principle, so it will not be repeated here. The present invention installs a rotary encoder 6 and a 1D sensor 53 on the first running side frame 2 and the second running side frame 3 respectively, so that when the tester pulls the crossbeam 1 and the first running wheel 42 and the second running wheel 52 slide along the track, the rotary encoder 6 measures the rotation speed of the first running wheel 42, and uses the 1D sensor 53 set at different positions on the second running side frame 3 to perform non-contact detection of the rail, and obtains the position coordinates of the track through the principle of laser triangulation, and obtains the three-dimensional contour of the track through coordinate transformation.

[0040] See also Figure 7 , a guide mechanism 7 is also provided on the second installation shaft 51 and located on the inner side of the second running side frame 3, and an anti-slip wheel 8 is provided on the outer side of the second running side frame 3, and the anti-slip wheel 8 is hinged to the second running side frame 3, and an anti-slip spring 81 for resetting the anti-slip wheel 8 is provided between the anti-slip wheel 8 and the outer side of the second running side frame 3. The present invention locates the running position of the second running wheel by the anti-slip wheel 8 provided on the second installation shaft 51 and located on the outer side of the second running side frame 3, so as to prevent the second running wheel from derailing during the running process. The present invention performs profile and unevenness detection on long-distance tracks, and can be used in conjunction with various types of rail maintenance engineering vehicles such as rail milling vehicles and rail grinding vehicles to realize real-time dynamic measurement of rail profiles during operation, thereby realizing comparison of rail profiles before and after operation, timely monitoring of operation results, and greatly improving the detection work efficiency. In addition, the present invention has high operation efficiency, accurate detection accuracy, strong data management and analysis functions, and is easy to assemble.

[0041] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that an article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such article or device. In the absence of more restrictions, the elements defined by the sentence "includes..." do not exclude the existence of other identical elements in the article or device including the elements.

[0042] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A hand-push track profile and unevenness detection device, characterized in that: It comprises a crossbeam (1), a first running side frame (2) arranged at one end of the crossbeam (1), a second running side frame (3) arranged at the other end of the crossbeam (1), a plurality of first wheel groups (4) arranged on the first running side frame (2), and a plurality of second wheel groups (5) arranged on the second running side frame (3); The first wheel group (4) comprises a first mounting shaft (41) arranged on the first running side frame (2) and a first running wheel (42) arranged on the first mounting shaft (41); the second wheel group (5) comprises a second mounting shaft (51) arranged on the second running side frame (3) and a second running wheel (52) arranged on the second mounting shaft (51); a rotary encoder (6) is provided on the second mounting shaft (51) and located outside the second running side frame (3); a 1D sensor (53) is provided inside the second running side frame (3) and located above the second running wheel (52); and a plurality of groups of the 1D sensors (53) are also provided inside the second running side frame (3) and located between two groups of second running wheels (52); A guide mechanism (7) is provided on the first installation shaft (41) and located on the inner side of the first running side frame (2), and on the second installation shaft (51) and located on the inner side of the second running side frame (3); The guide mechanism (7) comprises a guide frame (71) respectively arranged on the first installation shaft (41) and the second installation shaft (51), and a guide wheel (72) sleeved on the outside of the guide frame (71), baffles (73) are respectively provided on both sides of the guide frame (71), and a return spring (74) is provided between the guide wheel (72) and the baffle (73); A traverse slide rail (75) arranged perpendicular to the track is distributed on the outer side of the guide frame (71) in the circumferential direction, and an auxiliary traverse wheel (76) slidably connected to the traverse slide rail (75) is provided between the guide wheel (72) and the guide frame (71); An anti-slip wheel (8) is provided on the outer side of the second running side frame (3), and the anti-slip wheel (8) is hinged to the second running side frame (3).

2. The hand-pushed track profile and unevenness detection device according to claim 1, characterized in that: An anti-slip spring (81) is provided between the anti-slip wheel (8) and the outer side of the second running side frame (3).

3. The hand-pushed track profile and unevenness detection device according to claim 1, characterized in that: A pull rod (9) rotatably connected to the cross beam (1) is provided at the middle end of the cross beam (1).

4. The hand-push track profile and unevenness detection device according to claim 1, characterized in that: The crossbeam (1) is provided with a control system (10) respectively connected to the rotary encoder (6) and the 1D sensor (53).

5. The hand-push track profile and unevenness detection device according to claim 1, characterized in that: The crossbeam (1) is composed of a plurality of mutually hinged foldable beams (11), and locking mechanisms (12) are provided between the foldable beams (11).

6. The hand-push track profile and unevenness detection device according to claim 5, characterized in that: The locking mechanism (12) comprises a locking rod (121) and a locking block (122) respectively arranged on adjacent foldable beams (11); the locking rod (121) is rotatably connected to the foldable beam (11).

7. The hand-pushed track profile and unevenness detection device according to claim 1, characterized in that: An inclination sensor (13) is provided on the inner side of the second running side frame (3).

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