Track detection equipment

Abstract

The invention provides track detection equipment, and belongs to the technical field of track detection. In order to solve the problems that track detection equipment is low in detection accuracy and reliability in a turnout area and high in maintenance cost due to the fact that the track detection equipment is prone to damage, the invention provides track detection equipment which comprises a detection module, a walking mechanism and a turnout passing mechanism. The turnout passing mechanism comprises a first guide assembly and a second guide assembly; the first guide assembly comprises a first connecting shaft and a guide wheel, and the guide face of the guide wheel is attached to the side face of the fork core under driving of the first connecting shaft and can rotate around the first connecting shaft. The second guiding assembly comprises a second connecting shaft and a roller, and the roller surface of the roller makes contact with the side face of the fork core along with the second connecting shaft and rotates under guiding of the gradient of the side face of the fork core. By means of the turnout passing mechanism, the stability of the equipment passing through the turnout area is improved, loss is reduced, the detection accuracy and reliability of the turnout area are improved, and the maintenance cost is reduced.

Description

Technical Field

[0001] The present application relates to the field of track detection technology, and in particular to track detection equipment. Background Art

[0002] Track inspection equipment is used for track inspection, such as flaw detection, profile, and track inspection. It usually includes two symmetrically arranged inspection modules to synchronously inspect two rails. In addition, since the inspection environment has high requirements for stability, the running mechanism of the track inspection equipment is different from that of the train. Its running mechanism includes running wheels and supporting wheels. Specifically, running wheels are arranged below the inspection module, and supporting wheels are arranged on the side. The running wheels are used to run on the top surface of the rails, and the supporting wheels are attached to the inner side of the rails to achieve limit position, so as to provide a stable environment for inspection.

[0003] When the track inspection equipment detects the condition of the rails, it runs close to the railway track and sometimes needs to pass Figure 1 The railway turnout shown is a line connection device that allows locomotives and vehicles to transfer from one track to another. The line is complex, and its main component is the switch core for guiding.

[0004] In order to enable the track inspection equipment to smoothly pass through the turnout and turn to the rail to be inspected, a turnout mechanism is usually installed at the front and rear ends of the track inspection equipment. Figure 2 As shown, it is composed of a fixed bracket 3 and a guide block 4, and the turnout mechanism B is symmetrically installed on both sides of the detection module A. When the device passes through the turnout area, the guide block 4 of the turnout mechanism first contacts the tip of the turnout core. At the moment of contact, since the guide block 4 has a certain angle, it moves with the contact surface. The track detection device will move to the rail to be detected according to the angle of the guide block 4.

[0005] However, the existing switch mechanism has a large guiding resistance, resulting in a short lifespan, and the guiding is unstable and vibrates greatly, which causes the track detection equipment to be unstable and produce vibration / jumping, thereby causing incomplete and deviation detection of the rails in the switch area. At the same time, it is also easy to cause damage to the internal electronic components of the detection equipment and looseness of the cable joints, affecting the detection accuracy and the life of the detection equipment. Summary of the invention

[0006] The purpose of the present application is to solve the problem in the prior art that the track detection equipment has low detection accuracy and reliability in the turnout area, and is easy to damage, resulting in high maintenance costs. Therefore, the present application provides a track detection device, which improves the stability of the device through the turnout area through a turnout mechanism, reduces losses, thereby improving the detection accuracy and reliability of the turnout area, and reducing maintenance costs.

[0007] The embodiment of the present application provides a track detection device, including a detection module, a traveling mechanism and a track switch mechanism;

[0008] The detection module is used to obtain rail data;

[0009] The walking mechanism is provided with two and is symmetrically arranged at both ends of the detection module. The walking mechanism includes a first mounting frame and a walking wheel arranged below the first mounting frame. The walking wheel is used to contact the rail surface and support the detection module to walk on the rail.

[0010] The switch mechanism is provided with two and is respectively connected to the two first mounting frames; and,

[0011] The switch mechanism comprises a second mounting frame, and a first guide assembly and a second guide assembly sequentially arranged on the second mounting frame along the length direction of the second mounting frame;

[0012] The first guide assembly is arranged at the end of the second mounting frame, and the first guide assembly includes a first connecting shaft and a guide wheel rotatably sleeved on the first connecting shaft, the first connecting shaft is vertically arranged relative to a horizontal plane, and the guide surface of the guide wheel is in contact with the side surface of the branch core under the drive of the first connecting shaft, and can rotate around the first connecting shaft;

[0013] The second guide assembly includes a second connecting shaft and a roller rotatably mounted on the second connecting shaft. The second connecting shaft is horizontally arranged and tilts to one side as it moves away from the first guide assembly. The tilt angle is ≤ 1 / 2 of the angle of the fork core. The roller has a first length and covers the second connecting shaft. The drum surface of the roller contacts the side surface of the fork core along with the second connecting shaft and rotates under the guidance of the slope of the side surface of the fork core.

[0014] By adopting the above technical scheme, by arranging walking mechanisms at both ends of the detection module, the walking stability of the detection module is improved, and the installation of the turnout mechanism is facilitated; the first guide component and the second guide component of the turnout mechanism are guided and deflected in two steps to achieve complete guidance of the rail to be detected, which can reduce the impact force, thereby improving the guidance stability, and improving the position state stability of the detection module when passing through the turnout area, thereby improving the detection accuracy and reliability of the device for the turnout area, and reducing the maintenance cost; and, when passing through the turnout, the guide wheel of the first guide component of the mechanism first passes through the harmful space to contact the tip of the turnout core and guides it to the rail to be detected, and the guide surface of the guide wheel is used to and self-rotation to achieve tangential contact with the switch core, so that the guide wheel will rotate to remove the friction force when it is subjected to friction, thereby further improving the guiding stability; since the switch core has a slope, that is, it is wide at the bottom and narrow at the top and forms an angle as a whole, after the guide wheel passes the front end of the switch core, the roller of the second guide assembly touches the slope of the switch core to achieve rolling and pass, thereby achieving contact with the switch core along a spiral line, further improving the guiding stability, and facilitating the detection module to smoothly and stably pass through the harmful space and the front end of the switch core in the switch area under the traction of this mechanism, thereby improving the detection reliability; at the same time, the guide wheel of the first guide assembly and the roller of the second guide assembly both self-rotate to pass through the switch, which can slow down the loss, thereby extending the service life of this mechanism and reducing the maintenance cost.

[0015] In some embodiments, a plurality of bearings are sleeved on the second connecting shaft, and the roller is sleeved on the plurality of bearings.

[0016] The above technical solution improves the stability of the roller rotating along the slope of the turnout core, and improves the overall structural strength of the second guide assembly, thereby improving the bearing capacity of the mechanism and further improving the stability of the detection module moving in the turnout area.

[0017] In some embodiments, two of the first guide assembly and two of the second guide assembly are provided, and are symmetrically arranged at two ends of the second mounting frame.

[0018] The adoption of the above technical solution makes it easy to realize that the mechanism can guide the crossing of the turnout in both the forward and backward directions, thereby improving the flexibility of the device during detection.

[0019] In some embodiments, the ends of the first guide member assembly and the second guide assembly are separated by a first distance, and the first distance is proportional to the inclination angle of the second connecting shaft of the second guide assembly.

[0020] By adopting the above technical solution, the spacing between the first guide assembly and the second guide assembly is proportional to the angle of the switch core, so that the larger the angle of the switch core, the later the second guide assembly contacts the switch core, and the greater the guiding deflection of the first guide assembly to the mechanism, thereby reducing the deviation angle between the second guide assembly and the switch core, thereby improving the guiding stability of the second guide assembly, and improving the position state stability of the detection module when passing through the switch area, thereby improving the detection accuracy and reliability of the device for the switch area, and reducing maintenance costs.

[0021] In some embodiments, the second mounting bracket is connected to the first guide assembly via a mounting seat;

[0022] The mounting seat is L-shaped, and one end of the mounting seat is connected to the second mounting frame, and the other end is located in front of the end of the second mounting frame;

[0023] The first connecting shaft of the first guide assembly is vertically arranged at the end of the mounting seat located in front of the end of the second mounting bracket.

[0024] By adopting the above technical solution, the first guide assembly can be separated from the second mounting frame by disassembling and separating the mounting seat and the second mounting frame, thereby facilitating maintenance.

[0025] In some embodiments, both ends of the second connecting shaft are provided with shaft covers, the shaft covers have arc guide surfaces, and the edges of the arc guide surfaces are flush with the edges of the rollers;

[0026] A connecting column is provided between the shaft cover and the second mounting frame, and the second connecting shaft is connected to the second mounting frame through the shaft cover and the connecting column.

[0027] By adopting the above technical solution, the arc guide surface of the shaft cover is connected with the roller, which improves the stability of the mechanism when it changes from contacting the switch core through the first guide component to contacting the switch core through the second guide component, thereby further improving the guidance stability of the mechanism, improving the position state stability of the detection module when passing through the switch area, thereby improving the detection accuracy and reliability of the equipment for the switch area, and reducing maintenance costs.

[0028] In some embodiments, the second guide component has a proximal end and a distal end disposed oppositely along the first length, and the proximal end is proximal to the first guide component;

[0029] The second mounting frame is also provided with a supporting wheel for abutting against the side of the rail, the supporting wheel is arranged corresponding to the distal end of the second guide assembly, and the abutting surface of the supporting wheel protrudes from the distal edge of the second guide assembly in the direction toward the side of the rail.

[0030] By adopting the above technical solution, a supporting wheel is integrated, and the supporting wheel protrudes relative to the first guide assembly and the second guide assembly, so that when the second guide assembly passes through the switch core and is located on the conventional straight section rail, the supporting wheel will replace the first guide assembly and the second guide assembly to contact the rail, so that the first guide assembly and the second guide assembly only work in the switch area, which reduces wear and tear, extends service life, reduces maintenance costs, and at the same time avoids affecting the detection module from walking on conventional rails.

[0031] In some embodiments, the horizontal cross-section of the second mounting frame is trapezoidal;

[0032] The first guide assembly, the second guide assembly and the supporting wheel are all arranged below the second mounting frame, and the guide surface of the first guide assembly, the cylinder surface of the second guide assembly and the abutment surface of the supporting wheel all protrude from the lateral edge of the second mounting frame.

[0033] By adopting the above technical solution, the second mounting frame can be as close as possible to the first guide assembly, the second guide assembly and the supporting wheel, thereby improving the overall compactness and structural strength of the device.

[0034] Other features and corresponding beneficial effects of the present application are described in the latter part of the specification, and it should be understood that at least some of the beneficial effects become obvious from the records in the specification of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a structural schematic diagram of the railway turnout area;

[0036] Figure 2 It is a structural schematic diagram of the existing track detection device after being assembled with the existing turnout mechanism;

[0037] FIG3( a ) is a schematic diagram of the structure of an embodiment of the present application;

[0038] FIG3( b ) is a partially enlarged schematic diagram of the structure of an embodiment of the present application;

[0039] Figure 4 This is a structural schematic diagram of a turnout mechanism in an embodiment of the present application;

[0040] Figure 5 It is a top perspective schematic diagram of a turnout mechanism in an embodiment of the present application;

[0041] Figure 6 This is an exploded schematic diagram of a turnout mechanism in an embodiment of the present application;

[0042] Figure 7 It is an exploded schematic diagram of the second guide assembly of the turnout mechanism in the embodiment of the present application, wherein the connecting column is omitted;

[0043] Description of reference numerals:

[0044] 1. Branch core; 2. Harmful space; 3. Fixed bracket; 4. Guide block;

[0045] 100. Detection module;

[0046] 200, walking mechanism; 210, walking wheel;

[0047] 300, turnout mechanism;

[0048] 310, second mounting frame; 311, mounting seat; 312, connecting column;

[0049] 320, first guide assembly; 321, first connecting shaft; 322, guide wheel; 323, end cover;

[0050] 330, second guide assembly; 331, second connecting shaft; 332, roller; 333, bearing; 334, spacer; 335, shaft cover;

[0051] 340. supporting wheel; 341. third connecting shaft; 342. supporting wheel bearing; 343. supporting wheel end cover. DETAILED DESCRIPTION

[0052] The following specific embodiments illustrate the implementation of the present application, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Although the description of the present application will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this application are limited to the implementation. On the contrary, the purpose of introducing the application in conjunction with the implementation is to cover other options or modifications that may be extended based on the claims of the present application. In order to provide a deep understanding of the present application, the following description will include many specific details. The present application can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present application, some specific details will be omitted in the description. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0053] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0054] The technical solution of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0055] In the description of the present application, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description created by the present application, unless otherwise specified, "multiple" means two or more.

[0056] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0057] In order to make the objectives, technical solutions and advantages of the present application more clear, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

[0058] See also Figure 1-2 , Figure 1 It is a structural schematic diagram of the railway turnout area; Figure 2 It is a structural schematic diagram of the existing track detection equipment.

[0059] It should be noted that during the operation of the existing switch mechanism B, the switch mechanism B will first contact the tip of the switch core 1 in the switch area. Since the existing detection module A is manually pushed or towed to a power trolley, when passing through the switch area, the switch mechanism B will generate a large impact at the moment of contacting the tip of the switch core 1 to complete the guidance, which will cause vibration / jumping to the detection module A, thereby causing incomplete detection of the rails in the switch area and deviations.

[0060] At the same time, the vibration / jumping of detection module A may also damage the electronic components inside the device, which may directly cause the device to stop working; or cause the cable connector to loosen, resulting in abnormal communication, increasing the maintenance time of on-site staff, greatly increasing the time cost.

[0061] Moreover, when the existing switch mechanism B passes the tip of the switch core 1 during implementation, the guide block 4 is in hard friction with the slope of the switch core 1, which will aggravate the wear of the guide surface of the guide block 4, resulting in a shorter after-sales maintenance cycle and increased costs.

[0062] Please refer to Figures 3(a)-(b), Figure 3(a) is a structural schematic diagram of an embodiment of the present application; Figure 3(b) is a partially enlarged structural schematic diagram of an embodiment of the present application.

[0063] In response to the above problems, an embodiment of the present application provides a track detection device with high guiding stability and low maintenance cost.

[0064] Specifically, the device includes a detection module 100 , a traveling mechanism 200 and a switch mechanism 300 .

[0065] The detection module 100 is used to obtain rail data, and the detection module 100 in the existing track detection equipment can be used, and usually laser or camera is used to achieve non-contact detection.

[0066] There are two walking mechanisms 200, which are symmetrically arranged at both ends of the detection module 100, which improves the walking stability of the detection module 100 and facilitates the installation of the switch mechanism 300. The walking mechanism 200 includes a first mounting frame and a walking wheel arranged below the first mounting frame, and the walking wheel is used to contact the rail surface and support the detection module 100 to walk on the rail.

[0067] Two switch mechanisms 300 are provided, and are respectively connected to the two first mounting frames.

[0068] See also Figure 4-5 , Figure 4 Schematic diagram of the structure of the switch mechanism 300 in the embodiment of the present application; Figure 5 It is a top perspective schematic diagram of the switch mechanism 300 in the embodiment of the present application.

[0069] Specifically, the switch mechanism 300 includes a second mounting frame 310, and a first guide assembly 320 and a second guide assembly 330 sequentially arranged on the second mounting frame 310 along the length direction of the second mounting frame 310, and the first guide assembly 320 is arranged at the end of the second mounting frame 310. The first guide assembly 320 and the second guide assembly 330 are used for two-step guiding deflection to achieve full guidance of the rail to be inspected, which can reduce the impact force, thereby improving the guiding stability, and improving the position state stability of the detection module 100 when passing through the switch area, thereby improving the detection accuracy and reliability of the device for the switch area, and reducing the maintenance cost.

[0070] In one embodiment, two first guide assemblies 320 and two second guide assemblies 330 are provided and symmetrically arranged at both ends of the second mounting frame 310, so as to facilitate the device to guide the switch in both the forward and backward directions, thereby improving the flexibility of the device during detection.

[0071] Please combine Figure 4-5 , and see Figure 6 , Figure 6 It is an exploded schematic diagram of the switch mechanism 300 in the embodiment of the present application.

[0072] In one embodiment, the first guide assembly 320 includes a first connecting shaft 321 and a guide wheel 322 rotatably sleeved on the first connecting shaft 321. The first connecting shaft 321 is vertically arranged relative to the horizontal plane, and the guide surface of the guide wheel 322 is in contact with the side surface of the fork core 1 under the drive of the first connecting shaft 321, and can rotate around the first connecting shaft 321, that is, as the mechanism moves, the guide wheel 322 moves in contact with the side surface of the fork core 1 and rolls.

[0073] In this way, when passing through the turnout, the guide wheel 322 of the first guide assembly 320 of the mechanism first passes through the harmful space 2 to contact the tip of the turnout core 1 and guides it to the rail to be detected. The guide surface and self-rotation of the guide wheel 322 are used to achieve tangential contact with the turnout core 1, so that the guide wheel 322 is subjected to friction and rotates to remove the friction force, thereby further improving the guiding stability. In addition, the guide wheel 322 rotates through the turnout, which can reduce the loss of the guide wheel 322, thereby extending the service life of the mechanism and reducing maintenance costs.

[0074] In one embodiment, the first guide assembly 320 further includes an end cap 323, which is connected to the end of the first connecting shaft 321 to prevent the guide wheel 322 from being separated from the first connecting shaft 321, and the end cap 323 covers most of the bottom surface of the guide wheel 322 to protect the guide wheel 322 and extend its service life. Preferably, the guide wheel 322 and the end cap 323 are both made of high-strength steel.

[0075] In one embodiment, the second mounting frame 310 is connected to the first guide assembly 320 via a mounting seat 311 .

[0076] The mounting seat 311 is L-shaped, and one end of the mounting seat 311 is connected to the second mounting frame 310, and the other end is located in front of the end of the second mounting frame 310. The first connecting shaft 321 of the first guide assembly 320 is vertically arranged at the end of the mounting seat 311 located in front of the end of the second mounting frame 310, so that the mounting seat 311 and the second mounting frame 310 can be disassembled and separated to realize the first guide assembly 320 being separated from the second mounting frame 310, which is convenient for maintenance.

[0077] In one embodiment, the second guide assembly 330 includes a second connecting shaft 331 and a roller 332 rotatably sleeved on the second connecting shaft 331. The second connecting shaft 331 is horizontally arranged and tilted to one side as it moves away from the first guide assembly 320, and the tilt angle is ≤ 1 / 2 of the angle a of the fork core 1, thereby improving the smoothness of the second guide assembly 330 passing through the fork core 1. The roller 332 has a first length and covers the second connecting shaft 331, and the cylinder surface of the roller 332 contacts the side of the fork core 1 with the second connecting shaft 331, and rotates under the guidance of the slope of the side of the fork core 1. Preferably, the roller 332 is made of high-strength steel to extend its service life.

[0078] It should be noted that the switch core 1 not only has a side slope to guide the train to turn, but the side slope also has a slope, that is, the switch core 1 is wider at the bottom and narrower at the top, forming an overall angle.

[0079] Therefore, after the guide wheel 322 passes the front end of the switch core 1, the roller 332 of the second guide assembly 330 is in line contact with the switch core 1, which further improves the guiding stability and facilitates the track detection equipment to smoothly and stably pass through the harmful space 2 and the front end of the switch core 1 in the turnout area under the traction of this mechanism, thereby improving the detection reliability.

[0080] Furthermore, since the inclined surface of the fork core 1 has a slope, the roller 332 passes through the fork core 1 while rotating, so that the contact line between the roller 332 and the fork core 1 is a spiral line around the surface of the roller 332, so that the roller 332 and the fork core 1 are not in the same position each time they make frictional contact, which greatly reduces the wear of the roller 332, thereby extending the service life of the mechanism and reducing maintenance costs.

[0081] It can be understood that, in order to achieve the corresponding inclination of the roller 332 and the fork core 1, the inclination direction of the second connecting shaft 331 is toward the outside of its forward direction.

[0082] In one embodiment, shaft covers 335 are provided at both ends of the second connecting shaft 331. The shaft covers 335 have arc guide surfaces, and the edges of the arc guide surfaces are flush with the edges of the rollers 332. The arc guide surfaces of the shaft covers 335 are connected with the rollers 332, which improves the stability of the mechanism when it changes from contacting the branch core 1 through the first guide assembly 320 to contacting the branch core 1 through the second guide assembly 330, thereby further improving the guiding stability of the mechanism.

[0083] In one embodiment, a connecting column 312 is provided between the shaft cover 335 and the second mounting frame 310, and the second connecting shaft 331 is connected to the second mounting frame 310 through the shaft cover 335 and the connecting column 312, so that the second guide assembly 330 can be separated from the second mounting frame 310 by disassembling and separating the connecting column 312 and the second mounting frame 310, which is convenient for maintenance.

[0084] Preferably, the connecting column 312 is threadedly connected to the second mounting bracket 310 .

[0085] In one embodiment, the second guide assembly 330 has a proximal end and a distal end that are disposed opposite to each other along the first length, and the proximal end is proximal to the first guide assembly 320 .

[0086] The second mounting frame 310 is also provided with a wheel 340 for abutting against the side of the rail. The wheel 340 is arranged corresponding to the distal end of the second guide assembly 330, and the abutting surface of the wheel 340 protrudes from the distal edge of the second guide assembly 330 in the direction toward the side of the rail, preferably 2-5mm.

[0087] In this manner, the supporting wheel 340 of the mechanism can replace the supporting wheel 340 of the track detection equipment, and the supporting wheel 340 protrudes relative to the first guide assembly 320 and the second guide assembly 330, so that when the second guide assembly 330 passes through the switch core 1 and is located on the conventional straight section rail, the supporting wheel 340 will replace the first guide assembly 320 and the second guide assembly 330 to contact the rail, that is, the first guide assembly 320 and the second guide assembly 330 only work in the switch area, thereby reducing wear and tear, extending service life, and reducing maintenance costs. At the same time, it avoids affecting the movement of the track detection equipment on conventional rails.

[0088] It is understandable that when two first guide assemblies 320 and two second guide assemblies 330 are provided and symmetrically arranged at both ends of the second mounting frame 310 , the supporting wheel 340 is arranged between the two groups of first guide assemblies 320 and second guide assemblies 330 .

[0089] In one embodiment, the supporting wheel 340 is connected to the second mounting frame 310 via a third connecting shaft 341, and a supporting wheel bearing 342 is sleeved on the third connecting shaft 341, and the supporting wheel is connected to the supporting wheel bearing 342 to improve its rotation stability and reliability. Preferably, a supporting wheel end cover 343 is provided at the bottom of the supporting wheel 340 to prevent the supporting wheel 340 from being separated from the supporting wheel bearing 342 and the third connecting shaft 341, and to protect the bottom of the supporting wheel 340.

[0090] In one embodiment, the diameter of the guide wheel 322 is 18 mm, the diameter of the roller 332 is 21 mm, and the diameter of the supporting wheel 340 is 35 mm, so that the guide wheel 322, the roller 332 and the supporting wheel 340 can smoothly pass through the switch in sequence.

[0091] In one embodiment, the horizontal cross-section of the second mounting frame 310 is trapezoidal.

[0092] The first guide assembly 320, the second guide assembly 330 and the supporting wheel 340 are all arranged below the second mounting frame 310, and the guide surface of the first guide assembly 320, the cylinder surface of the second guide assembly 330 and the supporting surface of the supporting wheel 340 all protrude from the lateral edge of the second mounting frame 310, so that the second mounting frame 310 can be as close to the first guide assembly 320, the second guide assembly 330 and the supporting wheel 340 as possible, thereby improving the overall compactness of the device, so that the entire mechanism can be closer to the side of the rail, and the structural strength of the mechanism can also be improved, thereby improving the guiding stability.

[0093] In one embodiment, the ends of the first guide member assembly 320 and the second guide member assembly 330 are separated by a first distance L, where L is a buffer area for buffering the transitional harmful space, and L≤the length of the harmful space. The overall length from the front end of the first guide member assembly 320 to the end of the second guide member assembly 330 is lengthened by the first distance L, so that the first guide member assembly 320 and the second guide assembly 330 are smoothly connected, and the second guide assembly 330 cuts into the switch core 1 at a smaller angle, which facilitates the passage of the two through the switch, and allows the wheel 340 to smoothly pass through the harmful space.

[0094] See also Figure 7 , Figure 7 Schematic diagram of an exploded view of the second guide assembly 330 in the embodiment of the present application, in which the connecting column 312 is omitted.

[0095] In one embodiment, a plurality of bearings 333 are sleeved on the second connecting shaft 331, and the roller 332 is sleeved on the plurality of bearings 333, which can improve the stability of the roller 332 rotating along the slope of the switch core 1, and improve the overall structural strength of the second guide assembly 330, thereby improving the bearing capacity of the mechanism, and further improving the stability of the detection module 100 moving in the switch area.

[0096] It should be noted that under normal conditions, the detection module 100 of the track detection equipment is supported on the rails by the running wheels below it, but when passing through the switch area, the running wheels will be skewed to a certain extent due to turning. At this time, the present application provides additional assistance through the second guide assembly 330 to achieve the support of the detection module 100 and improve its stability and safety when passing through the switch area.

[0097] In one embodiment, a spacer sleeve 334 is provided between two adjacent bearings 333 to ensure the stability of the position of each bearing 333 on the second connecting shaft 331 and effectively reduce the direct friction between the bearings 333, thereby extending the service life of the sleeve, reducing vibration, and improving rotation stability and reliability.

[0098] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A track detection device, characterized in that: It includes a detection module, a traveling mechanism and a switch mechanism; The detection module is used to obtain rail data; The walking mechanism is provided with two and is symmetrically arranged at both ends of the detection module. The walking mechanism includes a first mounting frame and a walking wheel arranged below the first mounting frame. The walking wheel is used to contact the rail surface and support the detection module to walk on the rail. The switch mechanism is provided with two and is respectively connected to the two first mounting frames; and, The switch mechanism comprises a second mounting frame, and a first guide assembly and a second guide assembly sequentially arranged on the second mounting frame along the length direction of the second mounting frame; The first guide assembly is arranged at the end of the second mounting frame, and the first guide assembly includes a first connecting shaft and a guide wheel rotatably sleeved on the first connecting shaft, the first connecting shaft is vertically arranged relative to a horizontal plane, and the guide surface of the guide wheel is in contact with the side surface of the branch core under the drive of the first connecting shaft, and can rotate around the first connecting shaft; The second guide assembly includes a second connecting shaft and a roller rotatably mounted on the second connecting shaft. The second connecting shaft is horizontally arranged and tilts to one side as it moves away from the first guide assembly. The tilt angle is ≤ 1 / 2 of the angle of the fork core. The roller has a first length and covers the second connecting shaft. The drum surface of the roller contacts the side surface of the fork core along with the second connecting shaft and rotates under the guidance of the slope of the side surface of the fork core.

2. The track detection device according to claim 1, characterized in that: The second connecting shaft is sleeved with a plurality of bearings, and the roller is sleeved on the plurality of bearings.

3. The track detection device according to claim 1, characterized in that: The first guide assembly and the second guide assembly are both provided in pairs and are symmetrically arranged at two ends of the second mounting frame.

4. The track detection device according to claim 1, characterized in that: The ends of the first guide member assembly and the second guide assembly are separated by a first distance, and the first distance is proportional to the inclination angle of the second connecting shaft of the second guide assembly.

5. The track detection device according to claim 1, characterized in that: The second mounting frame is connected to the first guide assembly via a mounting seat; The mounting seat is L-shaped, and one end of the mounting seat is connected to the second mounting frame, and the other end is located in front of the end of the second mounting frame; The first connecting shaft of the first guide assembly is vertically arranged at the end of the mounting seat located in front of the end of the second mounting bracket.

6. The track detection device according to claim 1, characterized in that: Both ends of the second connecting shaft are provided with shaft covers, the shaft covers have arc guide surfaces, and the edges of the arc guide surfaces are flush with the edges of the rollers; A connecting column is provided between the shaft cover and the second mounting frame, and the second connecting shaft is connected to the second mounting frame through the shaft cover and the connecting column.

7. The track detection device according to any one of claims 1 to 5, characterized in that: The second guide assembly has a proximal end and a distal end disposed opposite to each other along the first length, and the proximal end is close to the first guide assembly; The second mounting frame is also provided with a supporting wheel for abutting against the side of the rail, the supporting wheel is arranged corresponding to the distal end of the second guide assembly, and the abutting surface of the supporting wheel protrudes from the distal edge of the second guide assembly in the direction toward the side of the rail.

8. The track detection device according to claim 7, characterized in that: The horizontal cross-section of the second mounting frame is trapezoidal; The first guide assembly, the second guide assembly and the supporting wheel are all arranged below the second mounting frame, and the guide surface of the first guide assembly, the cylinder surface of the second guide assembly and the abutment surface of the supporting wheel all protrude from the lateral edge of the second mounting frame.

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