Rail-crossing transfer device for wheel flaw detection equipment

Abstract

The utility model relates to a cross-rail transfer device for wheel flaw detection equipment. The device comprises a frame, a jacking module and a driving module, and the jacking module is arranged on the frame and can vertically ascend and descend on the lower side of the frame so as to jack the frame upwards; the driving module comprises a wheel seat, a distance adjusting piece, a steering piece, a walking wheel and a guide wheel, the distance adjusting piece is arranged on the frame and connected with the wheel seat, the distance adjusting piece can drive the wheel seat to move in the width direction of the frame, the walking wheel and the guide wheel are movably arranged on the lower side of the wheel seat, and the steering piece is arranged on the steering piece. The steering part is arranged on the upper side of the wheel seat and can drive the guide wheel to move up and down while adjusting the direction of the walking wheel; when the walking wheels walk on the target track, the rotating shafts of the walking wheels are parallel to the width direction of the frame, and the lower surfaces of the guide wheels are lower than the lower surfaces of the walking wheels; when the walking wheels walk on the ground, the rotating shafts of the walking wheels are perpendicular to the width direction of the frame, and the lower surfaces of the guide wheels are higher than the lower surfaces of the walking wheels.

Description

Technical Field

[0001] The present application relates to the field of train inspection technology, and in particular to a cross-track transfer device for wheel flaw detection equipment. Background Art

[0002] Train wheel flaw detection is an important part of ensuring the safe operation of trains. The traditional flaw detection method requires manual operation by workers, that is, the wheel does not move, and the radial defects of the rim are detected manually by manual transverse wave ultrasonic scanning. The flaw detection process often requires the cooperation of multiple people, and it takes 2 to 3 times to pull the car to basically scan the entire wheel. This will inevitably lead to missed inspections, and the amount of manual inspection is large.

[0003] The current flaw detection device used for automatic detection of wheel defects needs to inspect the train wheels in a trench. One set of equipment can only move in one trench for flaw detection. If it is necessary to inspect trains parked in other trenches in the maintenance depot, the flaw detection equipment needs to be transported to other trenches for flaw detection operations. The operation efficiency is low and it involves the coordinated operations of multiple trades in the maintenance depot, which results in high overhead and potential safety hazards. Summary of the invention

[0004] Based on this, it is necessary to provide a cross-track transfer device for wheel flaw detection equipment to address the above technical problems.

[0005] A cross-track transfer device comprises: a frame, at least one lifting module and at least two driving modules, wherein the lifting module is arranged on the frame and can be vertically lifted and lowered on the lower side of the frame to lift the frame upward;

[0006] The driving module includes a wheel seat, a distance adjusting member, a steering member, a running wheel and a guide wheel, wherein the distance adjusting member is arranged on the frame and connected to the wheel seat, and the distance adjusting member can drive the wheel seat to move along the width direction of the frame so that the distance between the running wheels of the two opposite driving modules is adapted to the width of the target track, the running wheel and the guide wheel are movably arranged on the lower side of the wheel seat, and the steering member is arranged on the upper side of the wheel seat and can drive the guide wheel to move up and down while adjusting the direction of the running wheel;

[0007] When the running wheel runs on the target track, the rotating shaft of the running wheel is parallel to the width direction of the frame, and the lower surface of the guide wheel is lower than the lower surface of the running wheel, so that the outer peripheral surface of the guide wheel is against the inner side of the target track; and when the running wheel runs on the ground, the rotating shaft of the running wheel is perpendicular to the width direction of the frame, and the lower surface of the guide wheel is higher than the lower surface of the running wheel.

[0008] In one embodiment, a guide member and a mounting seat that can move up and down are further provided on the lower side of the wheel seat, and the guide wheel is rotatably provided on the lower side of the mounting seat;

[0009] The steering member includes a steering motor, and a driving disc is arranged on the output shaft of the steering motor. The driving disc is located at the lower side of the wheel seat and is connected to the walking wheel. When the driving disc rotates, the mounting seat can be driven to move up and down along the guide member.

[0010] In one embodiment, a guide protrusion is provided on the side of the mounting seat facing the walking wheel, a driving protrusion is provided on the outer peripheral surface of the driving disk, and the lower surface of the driving protrusion is spirally distributed along the axial direction of the driving disk and abuts against the guide protrusion.

[0011] In one embodiment, the driving module further includes an elastic member, which is disposed between the wheel seat and the mounting seat and is used to provide a force for the mounting seat to move toward the wheel seat.

[0012] In one embodiment, the distance adjusting member comprises a distance adjusting power cylinder, a cylinder seat of the distance adjusting power cylinder is connected to the vehicle frame, and a piston rod of the distance adjusting power cylinder is connected to the wheel seat.

[0013] In one embodiment, the cross-track transfer device further includes a support module, the support module is disposed between the wheel seats of the two opposite driving modules, and the support module includes a support member, an outer sleeve and an inner sleeve;

[0014] The support member is arranged on the frame along the width direction of the frame, the outer sleeve is sleeved on the outside of the inner sleeve, the outer sleeve and the inner sleeve can slide along the support member in opposite directions, and the outer sleeve and the inner sleeve are respectively connected to the corresponding wheel seat of the driving module.

[0015] In one embodiment, the jacking module includes a jacking seat, a jacking member, a movable pulley, a multi-stage telescopic frame and a chain;

[0016] The jacking seat is arranged on the upper side of the frame, the jacking member is arranged on the jacking seat and is rotatably connected to the movable pulley, the jacking member can drive the movable pulley to move up and down, the multi-stage telescopic frame includes a plurality of telescopic frames sequentially arranged from the inside to the outside, and the outermost telescopic frame is slidably connected to the jacking seat; the chain is wound around the outer peripheral surface of the movable pulley, and the two ends of the chain are respectively connected to the jacking seat and the innermost telescopic frame.

[0017] In one of the embodiments, the lifting member includes a lifting power cylinder, a cylinder seat of the lifting power cylinder is connected to the frame, and a piston rod of the lifting power cylinder is rotatably connected to the movable pulley.

[0018] In one embodiment, the jacking module also includes an auxiliary tensioner and a pull rope, one end of the pull rope is connected to the innermost telescopic frame, and the auxiliary tensioner is arranged on the jacking seat. The auxiliary tensioner is used to retract and release the pull rope, and can apply an upward pulling force to the innermost telescopic frame through the pull rope.

[0019] In one of the embodiments, the lifting module further comprises a fixed pulley rotatably disposed on the lifting seat, the fixed pulley is located above the auxiliary tensioner, and the middle portion of the pulling rope is wound around the outer circumferential surface of the fixed pulley.

[0020] In one of the embodiments, the cross-track transfer device also includes a detection module, which is arranged on the upper side of the frame and is used to perform flaw detection on the target train wheels.

[0021] The above-mentioned cross-track transfer device for wheel flaw detection equipment can be automatically lifted from a ditch to the ground through the cooperation of the jacking module and the driving module, and then moved horizontally on the ground to another ditch and automatically dropped into the ditch, thereby realizing stable self-transportation in multiple trenches without derailment, and can perform flaw detection on train wheels in different trenches without the need for other auxiliary tools, thereby improving operating efficiency; in addition, the direction adjustment of the running wheel and the height adjustment of the guide wheel can be carried out simultaneously, which is beneficial to the stable transportation of the cross-track transfer device in different trenches, and the direction adjustment of the running wheel and the height adjustment of the guide wheel can share a steering member, thereby simplifying the structure of the cross-track transfer device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the three-dimensional structure of a cross-track transfer device for wheel flaw detection equipment provided in one embodiment of the present application when running on a target track.

[0023] Figure 2 A schematic diagram of the three-dimensional structure of a cross-track transfer device for wheel flaw detection equipment provided in one embodiment of the present application when it is lifted from the top of a trench to the ground.

[0024] Figure 3 A schematic diagram of the three-dimensional structure of two driving modules relatively arranged when a cross-track transfer device for wheel flaw detection equipment provided in one embodiment of the present application runs on a target track in a trench.

[0025] Figure 4A side view of two driving modules arranged opposite to each other when a cross-track transfer device for wheel flaw detection equipment provided in one embodiment of the present application is running on a target track on the ground.

[0026] Figure 5 A side view of two driving modules arranged opposite to each other when the cross-track transfer device for wheel flaw detection equipment provided in one embodiment of the present application is running on the ground.

[0027] Figure 6 This is a schematic diagram of the three-dimensional structure of a driving module provided in an embodiment of the present application without showing the wheel seat.

[0028] Figure 7 A schematic diagram of the three-dimensional structure of the lifting module provided in one embodiment of the present application when resetting.

[0029] Figure 8 and Fig. 9 A schematic diagram of the three-dimensional structure of a lifting module provided in one embodiment of the present application when viewed from different directions during lifting.

[0030] The reference numerals in the accompanying drawings are described as follows:

[0031] 10. Cross-track transfer device; 100. Vehicle frame; 110. Fixed frame; 200. Lifting module; 210. Lifting seat; 220. Lifting member; 230. Moving pulley; 240. Multi-stage telescopic frame; 250. Chain; 260. Auxiliary tensioner; 270. Pull rope; 280. Fixed pulley; 300. Drive module; 310. Wheel seat; 320. Traveling wheel; 330. Guide wheel; 340. Steering member; 341. Drive disc; 3411. Drive protrusion; 350. Distance adjustment member; 360. Guide member; 370. Mounting seat; 371. Guide protrusion; 372. Guide rail; 380. Elastic member; 390. Slider seat; 400. Support module; 410. Support member; 411. Support ring; 412. Outer sleeve; 413. Inner sleeve; 500. Flaw detection module. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0033] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does 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.

[0034] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0035] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated 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, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0036] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0037] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0038] like Figure 1 and Figure 2 As shown, an embodiment of the present application provides a cross-track transfer device 10 for wheel flaw detection equipment, the cross-track transfer device 10 includes a frame 100, at least one lifting module 200 and at least two driving modules 300. Figure 1 and Figure 2 As shown, the lifting module 200 is disposed on the frame 100 and can be vertically lifted and lowered at the lower side of the frame 100 to lift the frame 100 upward; Figures 3 to 5 As shown, the driving module 300 includes a wheel seat 310, a distance adjusting member 350, a steering member 340, a running wheel 320 and a guide wheel 330. The distance adjusting member 350 is arranged on the frame 100 and connected to the wheel seat 310. The distance adjusting member 350 can drive the wheel seat 310 to move along the width direction of the frame 100 so that the distance between the running wheels 320 of the two opposite driving modules 300 is adapted to the width of the target track. The running wheel 320 and the guide wheel 330 are movably arranged on the lower side of the wheel seat 310. The steering member 340 is arranged on the wheel seat 310. 0 and can drive the guide wheel 330 to move up and down while adjusting the direction of the running wheel 320; when the running wheel 320 runs on the target track, the rotating shaft of the running wheel 320 is parallel to the width direction of the frame 100, and the lower surface of the guide wheel 330 is lower than the lower surface of the running wheel 320, so that the outer peripheral surface of the guide wheel 330 is against the inner side of the target track; and when the running wheel 320 runs on the ground, the rotating shaft of the running wheel 320 is perpendicular to the width direction of the frame 100, and the lower surface of the guide wheel 330 is higher than the lower surface of the running wheel 320.

[0039] It should be noted that the width direction of the frame 100 can be as follows: Figure 1 The width direction shown is the standard.

[0040] Among them, Figure 1 and Figure 2 As shown, the cross-track transfer device 10 also includes a flaw detection module 500, which is arranged on the upper side of the frame 100 and is used to perform flaw detection on the target train wheel. The flaw detection module 500 aligns with the circumference of the train wheel and completes the detection of the entire wheel during the rotation of the train wheel.

[0041] The following describes the transfer process of the cross-track transfer device 10 in different trenches:

[0042] After the flaw detection device 10 completes the flaw detection of the track of the first trench (referred to as the "first target track"), the lifting module 200 is lifted vertically on the lower side of the frame 100 until the frame 100 is lifted upward to the track on the ground (referred to as the "second target track"); thereafter, since the second target track is a standard track and its width is greater than that of the first target track, the distance adjusting member 350 of the driving module 300 drives the wheel seat 310 to move toward the left and right sides of the frame 100 to increase the distance between the running wheels 320 of the driving modules 300 on both sides, so that the distance between the running wheels 320 on both sides is greater than that between the running wheels 320 on both sides. The distance between the two ends matches the width of the second target track; thereafter, the lifting module 200 is reset, and the walking wheel 320 of the flaw detection device moves along the second target track; when the flaw detection device runs to the level crossing, the steering member 340 of the driving module 300 drives the guide wheel 330 to move upward, so that the lower surface of the guide wheel 330 is higher than the lower surface of the walking wheel 320 without interfering with the ground, and at the same time, the direction of the walking wheel 320 is adjusted so that the rotating shaft of the walking wheel 320 is perpendicular to the width direction of the frame 100, and the flaw detection device 10 moves horizontally on the ground of the level crossing. When the flaw detection device 10 runs to the third target track, the steering member 340 of the driving module 300 adjusts the direction of the running wheel 320 so that the rotating shaft of the running wheel 320 is parallel to the width direction of the frame 100, and at the same time drives the guide wheel 330 to move downward, so that the lower surface of the guide wheel 330 is lower than the lower surface of the running wheel 320 and abuts against the inner side of the third target track, thereby guiding the running of the running wheel 320 and avoiding derailment. When the flaw detection device 10 runs to the second trench to perform flaw detection on the track of the second trench (referred to as the "fourth target track"), the jacking module 200 is vertically lifted until it contacts the fourth target track, thereby supporting the frame 100 above the fourth target track; thereafter, since the width of the fourth target track is smaller than the width of the third target track, the distance adjusting member 350 of the driving module 300 drives the wheel seat 310 to move toward the middle of the seat to reduce the distance between the running wheels 320 of the driving modules 300 on both sides, so that the distance between the running wheels 320 on both sides matches the width of the fourth target track; finally, the jacking module 200 is reset, thereby allowing the cross-track transfer device 10 to enter the second trench for operation.

[0043] It can be seen that the cross-track transfer device 10 of the present application can be automatically lifted from a ditch to the ground through the cooperation of the jacking module 200 and the driving module 300, and then moved horizontally on the ground to another ditch and automatically descended into the ditch, thereby realizing stable self-transportation in multiple trenches without derailment, and can perform flaw detection on train wheels in different trenches without the need for other auxiliary tools, thereby improving operating efficiency; in addition, the direction adjustment of the running wheel 320 and the height adjustment of the guide wheel 330 can be carried out simultaneously, which is beneficial to the stable transportation of the cross-track transfer device 10 in different trenches, and the direction adjustment of the running wheel 320 and the height adjustment of the guide wheel 330 can share a steering member 340, thereby simplifying the structure of the cross-track transfer device 10.

[0044] The structure of the frame 100 may be a rectangular frame structure composed of a plurality of rods and plates fixed to each other, on which other components are installed to position and fix each component. The specific shape and structure of the frame 100 is not specifically limited, as long as it can be used as a structure that can bear loads.

[0045] Regarding the number of driving modules 300, it can be Figure 1 and Figure 2 The four shown are divided into two groups, and the two groups are arranged at both ends of the length direction of the frame 100, and each group of drive modules 300 is arranged on both sides of the width direction of the frame 100. Of course, it can also be 2, 6, 8, etc., as long as the cross-track transfer device 10 can run smoothly on the target track or on the ground. It should be noted that the length direction of the frame 100 can be as follows Figure 1 Directions shown shall prevail.

[0046] For each driving module 300, Figures 3 to 6As shown, a guide member 360 and a mounting seat 370 that can move up and down are also provided on the lower side of the wheel seat 310, and the guide wheel 330 is rotatably provided on the lower side of the mounting seat 370; the steering member 340 includes a steering motor, and a driving disk 341 is provided on the output shaft of the steering motor. The driving disk 341 is located on the lower side of the wheel seat 310 and is connected to the walking wheel 320. When the driving disk 341 rotates, the mounting seat 370 can be driven to move up and down along the guide member 360. When the output shaft of the steering motor rotates in the positive direction, the walking wheel 320 also rotates in the positive direction, so that its own rotating axis is parallel to the width direction of the frame 100. At the same time, the driving disc 341 can drive the mounting seat 370 to move downward along the guide member 360, so that the lower surface of the guide wheel 330 is lower than the lower surface of the walking wheel 320; and when the output shaft of the steering motor rotates in the reverse direction, the walking wheel 320 also rotates in the reverse direction, so that its own rotating axis is perpendicular to the width direction of the frame 100. At the same time, the driving disc 341 can drive the mounting seat 370 to move upward along the guide member 360, so that the lower surface of the guide wheel 330 is higher than the lower surface of the walking wheel 320.

[0047] like Figure 6 As shown, a guide protrusion 371 is provided on the side of the mounting seat 370 facing the walking wheel 320, and a driving protrusion 3411 is provided on the outer peripheral surface of the driving disc 341. The lower surface of the driving protrusion 3411 is spirally distributed along the axial direction of the driving disc 341 and abuts against the guide protrusion 371. The specificity of the structure of the driving protrusion 3411 can be used to drive the guide protrusion 371 to move.

[0048] Continue to see Figure 6 , the guide member 360 may be provided with a slide groove along the up-down direction, and a guide rail 372 is provided on the side of the mounting seat 370 close to the guide member 360, and the guide rail 372 may slide up and down along the slide groove. Of course, the mounting seat 370 may be provided with a slide groove along the up-down direction, and a guide rail is provided on the side of the guide member 360 close to the guide member 360, and the guide rail is accommodated in the slide groove. Among them, a guide member seat 390 is provided at the lower side of the wheel seat 310, and the guide member 360 is arranged on the guide member seat 390.

[0049] Furthermore, if Figures 3 to 6 As shown, the driving module 300 may further include an elastic member 380, which is disposed between the wheel seat 310 and the mounting seat 370 and is used to provide the mounting seat 370 with a force to move toward the wheel seat 310. When the output shaft of the steering motor rotates in the positive direction, the driving protrusion 3411 of the driving disk 341 drives the guide protrusion 371 to make the mounting seat 370 move downward along the guide member 360, and at the same time, the elastic member 380 is deformed; when the output shaft of the steering motor rotates in the reverse direction, the elastic member 380 is reset, and then the mounting seat 370 can be driven to move upward, so that the lower surface of the guide wheel 330 is higher than the lower surface of the running wheel 320.

[0050] The elastic member 380 may be a tension spring, and both ends of the elastic member 380 may be hook-shaped and may be hung on the wheel seat 310 and the mounting seat 370 respectively. Figure 1 and Figure 3 The elastic member 380 shown is not hung on the wheel seat 310 and the mounting seat 370 .

[0051] In some embodiments of the present application, Figures 3 to 5 As shown, the distance adjusting member 350 of the driving module 300 may include a distance adjusting power cylinder, the cylinder seat of the distance adjusting power cylinder is connected to the vehicle frame 100, and the piston rod of the distance adjusting power cylinder is connected to the wheel seat 310. By adjusting the distance between the two side running wheels 320 through the distance adjusting power cylinder, not only the structure of the driving module 300 can be simplified, but also the movement of the wheel seat 310 can be driven easily. Among them, the distance adjusting power cylinder can be a cylinder, a hydraulic cylinder or a pneumatic cylinder, which can be set accordingly according to the specific situation.

[0052] Since the wheel seat 310 is provided with the travel wheels 320 and the steering member 340 on the upper and lower sides respectively, the weight borne by the wheel seat 310 becomes larger, so that the piston rod is not enough to support the wheel seat 310. Figures 3 to 5 As shown, in this embodiment, the cross-track transfer device 10 further includes a support module 400, which is arranged between the wheel seats 310 of the two opposite driving modules 300, and includes a support member 410, an outer sleeve 420 and an inner sleeve 430; the support member 410 is arranged on the frame 100 along the width direction of the frame 100, the outer sleeve 420 is sleeved on the outside of the inner sleeve 430, the outer sleeve 420 and the inner sleeve 430 can slide along the support member 410 in opposite directions, and the outer sleeve 420 and the inner sleeve 430 are respectively connected to the wheel seats 310 of the corresponding driving modules 300. When the distance adjustment power cylinder of the driving module 300 drives the wheel seat 310 to move along the width direction of the frame 100, the outer sleeve 420 or the inner sleeve 430 connected to the wheel seat 310 will be synchronously extended and retracted to support the wheel seat 310, so as to ensure the stable operation of the cross-track transfer device 10.

[0053] It is understandable that the number of the supporting modules 400 is related to the number of the driving modules 300. For example, when the number of the driving modules 300 is Figure 1 When four are shown, the number of the supporting modules 400 is correspondingly two, and the two supporting modules 400 are respectively disposed between the corresponding two driving modules 300 .

[0054] The support member 410 may be a support tube or Figure 3 As shown, it includes a plurality of support rings 411 spaced apart along the width direction of the vehicle frame 100. It can be understood that when the support member 410 is a support tube, the entire support module 400 can be regarded as a two-stage telescopic tube.

[0055] The number of the support rings 411 can be set according to the specific situation. For example, Figures 3 to 5 As shown, the number of support rings 411 may be 3, wherein Figures 3 to 5 The left support ring 411 shown corresponds to the inner sleeve 430, while the two right support rings 411 correspond to the outer sleeve 420. It should be noted that the inner diameter of the support ring 411 corresponding to the outer sleeve 420 is matched with the outer diameter of the outer sleeve 420, while the inner diameter of the support ring 411 corresponding to the inner sleeve 130 is matched with the outer diameter of the inner sleeve 430.

[0056] In order to facilitate the installation of the support ring 411, Figure 1 As shown, a fixing frame 110 is disposed on the upper side of the vehicle frame 100, a support ring 411 is disposed on the surface of the fixing frame 110 facing the upper surface of the vehicle frame 100, and a cylinder seat of the distance adjustment power cylinder is disposed on the upper surface of the vehicle frame 100. The fixing frame 110 may be substantially in an inverted "U" shape, and the number of the fixing frames 110 and the installation positions on the vehicle frame 100 may be the same as those of the support module 400.

[0057] The number of lifting modules 200 can be Figure 1 and Figure 2 The two lifting modules 200 shown are arranged at both ends of the length direction of the frame 100. Of course, there can also be 1, 3, 4, 6, 8, etc., as long as the frame 100 can be stably supported.

[0058] For each lifting module 200, Figures 7 to 9 As shown, the lifting module 200 may include a lifting seat 210, a lifting member 220, a movable pulley 230, a multi-stage telescopic frame 240 and a chain 250; the lifting seat 210 is arranged on the upper side of the vehicle frame 100, the lifting member 220 is arranged on the lifting seat 210 and is rotatably connected to the movable pulley 230, the lifting member 220 can drive the movable pulley 230 to move up and down, the multi-stage telescopic frame 240 includes a plurality of telescopic frames sequentially arranged from the inside to the outside, and the outermost telescopic frame is slidably connected to the lifting seat 210; the chain 250 is wound around the outer circumference of the movable pulley 230, and the two ends of the chain 250 are respectively connected to the lifting seat 210 and the innermost telescopic frame. When the lifting member 220 is working, the multi-stage telescopic frame 240 is correspondingly extended and retracted in cooperation with the movable pulley 230 and the chain 250. For the movable pulley 230, the moving distance of the free end of the chain 250 (i.e., the end connected to the innermost telescopic frame) is twice the moving distance of the movable pulley 230. Therefore, when the travel distance of the lifting member 220 is L, the telescopic distance of the innermost telescopic frame is 2L.

[0059] Among them, the lifting member 220 may include a lifting power cylinder, the cylinder seat of the lifting power cylinder is connected to the frame 100, and the piston rod of the lifting power cylinder is connected to the movable pulley 230. The structure of the lifting module 200 can be simplified by driving the movable pulley 230 up and down through the lifting power cylinder. Since the depth of the trench is generally more than 1m, for example, 1.2m, and the maximum stroke distance of the lifting power cylinder can be 700mm, then the distance that the innermost telescopic frame extends downward can be 1.4m, which is greater than 1.2m, so that the frame 100 can be higher than the ground. In this way, by setting the movable pulley 230 and the chain 250, the lifting power cylinder can adopt a single-stage cylinder structure, so that the frame 100 can be lifted from the trench to the ground, without the need to adopt a multi-stage cylinder structure for the lifting power cylinder, which can simplify the structure of the lifting power cylinder, reduce costs, and is also easy to control electrically, with a low failure rate.

[0060] The lifting power cylinder can be a hydraulic cylinder, a gas cylinder or an oil cylinder, and can be set accordingly according to specific circumstances.

[0061] The number of movable pulleys 230 may be two, and the two movable pulleys 230 may be symmetrically arranged along the radial direction of the piston rod of the lifting power cylinder, so that the innermost telescopic frame can be stably lifted and lowered. The number of chains 250 is also two, and each chain 250 is wound around the corresponding movable pulley 230 .

[0062] Further, see Figure 7 and Figure 8 The lifting module 200 may also include an auxiliary tensioner 260 and a pull rope 270. One end of the pull rope 270 is connected to the innermost telescopic frame. The auxiliary tensioner 260 is arranged on the lifting seat 210. The auxiliary tensioner 260 is used to retract the pull rope 270 and can apply an upward pulling force to the innermost telescopic frame through the pull rope 270. When the piston rod of the lifting power cylinder is reset upward, the chain 250, due to its certain flexibility, will fall off from the outer peripheral surface of the driven pulley 230 under the action of its own gravity, thereby affecting the lifting of the frame 100. In this regard, by setting the auxiliary tensioner 260, when the piston rod of the lifting power cylinder is reset upward, the auxiliary tensioner 260 applies an upward pulling force to the innermost telescopic frame through the pull rope 270, and the multi-stage telescopic frame 240 overcomes its own gravity and retracts upward together with the piston rod of the lifting power cylinder.

[0063] The auxiliary tensioner 260 may be a balancing tensioner. The number of the auxiliary tensioners 260 may be two, and the two auxiliary tensioners 260 may be arranged at intervals along the width direction of the frame 100 . Correspondingly, the number of the pull ropes 270 may also be two, and each pull rope 270 is wound in the corresponding auxiliary tensioner 260 .

[0064] Furthermore, if Figure 7 and Figure 8As shown, the lifting module 200 may further include a fixed pulley 280 rotatably disposed on the lifting seat 210, the fixed pulley 280 is located above the auxiliary tensioner 260, and the middle portion of the pull rope 270 is wound around the outer circumference of the fixed pulley 280. The fixed pulley 280 can change the direction of the pull rope 270, so as to apply an upward pulling force to the innermost telescopic frame.

[0065] It should be noted that the cross-track transfer device 10 may also include a control module, which is arranged on the frame 100 and is electrically connected to the steering motor, the distance adjustment cylinder, the lifting cylinder and the motor on the walking wheel 320 to control the working timing of each component.

[0066] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0067] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A cross-track transfer device for wheel flaw detection equipment, characterized in that: include: A vehicle frame, at least one lifting module and at least two driving modules, wherein the lifting module is arranged on the vehicle frame and can be vertically lifted and lowered on the lower side of the vehicle frame to lift the vehicle frame upward; The driving module includes a wheel seat, a distance adjusting member, a steering member, a running wheel and a guide wheel, wherein the distance adjusting member is arranged on the frame and connected to the wheel seat, and the distance adjusting member can drive the wheel seat to move along the width direction of the frame so that the distance between the running wheels of the two opposite driving modules is adapted to the width of the target track, the running wheel and the guide wheel are movably arranged on the lower side of the wheel seat, and the steering member is arranged on the upper side of the wheel seat and can drive the guide wheel to move up and down while adjusting the direction of the running wheel; When the running wheel runs on the target track, the rotating shaft of the running wheel is parallel to the width direction of the frame, and the lower surface of the guide wheel is lower than the lower surface of the running wheel, so that the outer peripheral surface of the guide wheel is against the inner side of the target track; and when the running wheel runs on the ground, the rotating shaft of the running wheel is perpendicular to the width direction of the frame, and the lower surface of the guide wheel is higher than the lower surface of the running wheel.

2. The cross-track transfer device according to claim 1, characterized in that: A guide member and a mounting seat that can move up and down are also provided on the lower side of the wheel seat, and the guide wheel is rotatably provided on the lower side of the mounting seat; The steering member includes a steering motor, and a driving disc is arranged on the output shaft of the steering motor. The driving disc is located at the lower side of the wheel seat and is connected to the walking wheel. When the driving disc rotates, the mounting seat can be driven to move up and down along the guide member.

3. The cross-track transfer device according to claim 2, characterized in that: A guide protrusion is arranged on one side of the mounting seat facing the travel wheel, a driving protrusion is arranged on the outer peripheral surface of the driving disc, and a lower surface of the driving protrusion is spirally distributed along the axial direction of the driving disc and abuts against the guide protrusion.

4. The cross-track transfer device according to claim 3, characterized in that: The driving module further comprises an elastic member, which is disposed between the wheel seat and the mounting seat and is used to provide a force for the mounting seat to move toward the wheel seat.

5. The cross-track transfer device according to any one of claims 1 to 4, characterized in that: The distance adjusting member comprises a distance adjusting power cylinder, a cylinder seat of the distance adjusting power cylinder is connected to the vehicle frame, and a piston rod of the distance adjusting power cylinder is connected to the wheel seat.

6. The cross-track transfer device according to claim 5, characterized in that: The cross-track transfer device further comprises a support module, which is disposed between the wheel seats of the two opposite drive modules, and comprises a support member, an outer sleeve and an inner sleeve; The support member is arranged on the frame along the width direction of the frame, the outer sleeve is sleeved on the outside of the inner sleeve, the outer sleeve and the inner sleeve can slide along the support member in opposite directions, and the outer sleeve and the inner sleeve are respectively connected to the corresponding wheel seat of the driving module.

7. The cross-track transfer device according to any one of claims 1 to 4, characterized in that: The jacking module includes a jacking seat, a jacking member, a movable pulley, a multi-stage telescopic frame and a chain; The jacking seat is arranged on the upper side of the frame, the jacking member is arranged on the jacking seat and is rotatably connected to the movable pulley, the jacking member can drive the movable pulley to move up and down, the multi-stage telescopic frame includes a plurality of telescopic frames sequentially arranged from the inside to the outside, and the outermost telescopic frame is slidably connected to the jacking seat; the chain is wound around the outer peripheral surface of the movable pulley, and the two ends of the chain are respectively connected to the jacking seat and the innermost telescopic frame.

8. The cross-track transfer device according to claim 7, characterized in that: The lifting member comprises a lifting power cylinder, a cylinder seat of the lifting power cylinder is connected to the vehicle frame, and a piston rod of the lifting power cylinder is rotatably connected to the movable pulley.

9. The cross-track transfer device according to claim 7, characterized in that: The lifting module also includes an auxiliary tensioner and a pull rope, one end of the pull rope is connected to the innermost telescopic frame, the auxiliary tensioner is arranged on the lifting seat, the auxiliary tensioner is used to retract the pull rope, and can apply an upward pulling force to the innermost telescopic frame through the pull rope.

10. The cross-track transfer device according to claim 9, characterized in that: The lifting module also includes a fixed pulley rotatably arranged on the lifting seat, the fixed pulley is located above the auxiliary tensioner, and the middle part of the pulling rope is wound around the outer peripheral surface of the fixed pulley.

11. The cross-track transfer device according to any one of claims 1 to 4, characterized in that: The cross-track transfer device also includes a detection module, which is arranged on the upper side of the frame and is used to perform flaw detection on the target train wheels.

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