Railway track simulation unit and method for hoisting test of railway vehicle set

Abstract

The application discloses a track simulation unit and a track vehicle group hoisting test method, which uses a simulation curve mode and completes test verification by using the track simulation unit. The track simulation unit comprises a frame body, an inner rail and an outer rail. The frame body is provided with at least two observation holes at intervals. The observation holes are provided through along the height direction of the frame body and are used for positioning the track simulation unit by aligning with a positioning curve. The inner rail is arranged on the frame body. The outer rail is arranged on the frame body and is distributed at equal intervals with the inner rail. The outer rail is higher than the inner rail, so as to simulate a small section of a large-radius continuous curve track supporting a bogie part. The track structure is consistent with the track structure of the track vehicle group when turning. Each track simulation unit is used for profiling and simulating a small section of an actual track supporting a bogie. The technical problem that the track line cannot meet the test requirement is solved. The track simulation unit does not need to newly build a railway line or transform an existing line, so that the cost is saved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of track vehicle group hoisting test, in particular to a track simulation unit and a track vehicle group hoisting test method. BACKGROUND

[0002] In a railway vehicle, there is a vehicle group mainly used for hoisting and transporting railway rails. The vehicle group needs to be hoisted on a railway curve to verify the hoisting capacity and functionality of the track vehicle group for long straight goods such as rails. However, in general, the radius of the required test track is large, and the existing line cannot meet the test requirements. At this time, it is necessary to newly build a railway line or modify the existing line, which has the technical problems of large workload and high cost.

[0003] In summary, the prior art may have the technical problem that the track vehicle group cannot be tested on the existing track, which makes the preparation of the test time-consuming and laborious, and is not conducive to the development, verification and improvement of the track vehicle group. SUMMARY

[0004] To solve the above technical problems, the present application provides a track simulation unit and a track vehicle group hoisting test method, which simulates the state of the track curve, avoids the need to newly build a railway line or modify the existing line, and reduces unnecessary investment costs.

[0005] The scheme for achieving the technical purpose of the present application is a track simulation unit, comprising,

[0006] a frame body, at least two observation holes are arranged at intervals, and the observation holes are arranged through along the height direction of the frame body;

[0007] an inner rail arranged on the frame body;

[0008] an outer rail arranged on the frame body, spaced at equal intervals with the inner rail, and the outer rail is higher than the inner rail.

[0009] In some embodiments, the frame body comprises a frame beam and a diagonal brace connecting opposite corners of the frame beam;

[0010] the inner rail and the outer rail are arranged on the two beam bodies arranged opposite to each other of the frame beam respectively; and the at least two observation holes are arranged on the frame beam and / or the diagonal brace and located between the inner rail and the outer rail.

[0011] In some embodiments, the at least two observation holes are arranged on the diagonal brace and spaced along the axial direction of the diagonal brace, and one of the observation holes is located at the midpoint of the interval between the outer rail and the inner rail.

[0012] In some embodiments, the frame body further comprises a bottom plate arranged at the bottom surface of the frame beam;

[0013] The frame beam is further provided with a lifting lug, and the lifting lug, the inner rail and the outer rail are arranged on different beam bodies.

[0014] In some embodiments, the frame body further comprises a reinforcing support for connecting the outer rail and the frame beam.

[0015] In some embodiments, the frame body further comprises a baffle arranged at the axial both ends of the inner rail.

[0016] In some embodiments, the baffle comprises a bent plate and a reinforcing rib plate connected with both bent sections of the bent plate, and the bent plate is connected with the inner rail.

[0017] In some embodiments, the outer rail comprises two rail sections arranged at intervals along the axial direction of the outer rail.

[0018] In some embodiments, the inner rail and the outer rail are straight rails, and the inner rail and the outer rail are parallel to each other.

[0019] Based on the same inventive concept, the present application further provides a rail vehicle group hoisting test method based on the above-mentioned rail simulation unit, comprising the following steps:

[0020] According to the set rail curve radius, a positioning curve is plotted on the test site, and the calibration positions corresponding to each bogie of the rail vehicle group are marked;

[0021] The same number of rail simulation units as the number of bogies of the rail vehicle group are arranged one by one at the marked calibration positions;

[0022] The rail vehicle group is arranged on the rail simulation units, and the bogies of the rail vehicle group are in contact with the inner rail and the outer rail;

[0023] The rail vehicle group hoists the steel rail outside the outer rail to perform the hoisting test.

[0024] In some embodiments, according to the set rail curve radius, a positioning curve is plotted on the test site, specifically comprising: according to the set rail curve radius, a corresponding bogie center curve is plotted; according to the bogie center curve and the track gauge, an inner rail curve and an outer rail curve corresponding to the inner rail and the outer rail are plotted respectively; according to the distance between the observation hole and the inner rail / outer rail, a corresponding observation curve is plotted.

[0025] In some embodiments, the positioning curve is drawn on the test site according to the set track curve radius, and specifically further comprising drawing a storage area 500 of the test rail to be hoisted on the outside of the outer rail curve;

[0026] Before the track vehicle group hoists the rail located on the outside of the outer rail, the track vehicle group hoisting test method further comprises placing the test rail to be hoisted in the storage area 500.

[0027] In some embodiments, the marking of the calibration position corresponding to each bogie of the track vehicle group specifically comprises determining the center distance of the two track simulation units in the length direction according to the center distance of the adjacent two bogies of the railway vehicle group.

[0028] From the above technical solution, the track simulation unit provided by the application comprises a frame body, an inner rail and an outer rail arranged on the frame body, and the inner rail and the outer rail are distributed at equal intervals. The inner rail and the outer rail are shaped according to the parameters of the wheel tread to simulate the shape of the actual track, and the interval between the inner rail and the outer rail on the same side is controlled to be 1435±2mm, which meets the standard track gauge requirement and mainly serves as a load bearing bogie. The outer rail is higher than the inner rail to simulate a small section of the continuous curve track supporting the bogie part with a large radius, which meets the track structure of the railway vehicle group when turning. At least two observation holes are arranged at intervals on the frame body, and each observation hole is arranged through the height direction of the frame body. The frame body is positioned through the at least two observation holes, and the center curve of the inner rail and the outer rail is equivalent to the set track curve radius during use. Through the profile simulation mode, the modular track simulation unit is used to replace the railway track line, and one track simulation unit is arranged for supporting one bogie to simulate the capacity of the vehicle group hoisting goods on the track curve. When the hoisting test is performed, a relatively open test site that meets the size layout requirements of the simulated curve is selected, and the setting position of each track simulation unit can be calibrated according to the set track curve radius and the size parameters of the railway vehicle group. Each bogie is supported and loaded by one track simulation unit, and each track simulation unit simulates a small section of the actual track. After the test is completed, the track simulation unit can be stored and placed, the test site can be emptied at any time, the occupation of the site is reduced, the technical problem of not being able to perform the test on the track line that meets the test requirements is solved, the new railway line does not need to be built or the existing line does not need to be modified, and the cost is saved. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 The top view of the track simulation unit provided for embodiment 1 of the application;

[0030] Figure 2 The front view of the track simulation unit of Figure 1 ​

[0031] Figure 3 Fig. 1 is a perspective view of a track simulation unit according to an embodiment of the present application; Figure 1 Fig. 2 is a side view of the track simulation unit of Fig. 1;

[0032] Figure 4 Fig. 3 is an application example diagram of a track vehicle group hoisting test method provided by Embodiment 2 of the present application.

[0033] Reference signs: 100 - track simulation unit, 110 - frame body, 111 - observation hole, 112 - frame beam, 113 - cross beam, 114 - longitudinal beam, 120 - diagonal brace, 130 - inner rail, 140 - outer rail, 141 - track section, 150 - bottom plate, 160 - lifting lug, 170 - baffle, 171 - bent plate, 172 - reinforcing rib plate, 180 - reinforcing support;

[0034] 200 - bogie center curve, 300 - inner rail curve, 400 - outer rail curve, 500 - storage area, 510 - boundary curve, 600 - railway vehicle group. DETAILED DESCRIPTION

[0035] In order for those skilled in the art to which the present application pertains to more clearly understand the present application, the technical solutions of the present application will be described in detail below with specific embodiments in conjunction with the accompanying drawings.

[0036] In order to solve the technical problem that the existing line cannot meet the hoisting test requirements of the track vehicle group in the prior art, the present application provides a track simulation unit and a track vehicle group hoisting test method, which simulates the state of the track curve, avoids the construction of a new railway line or the modification of the existing line, and reduces unnecessary investment costs. The content of the present application will be described in detail below through two specific embodiments:

[0037] Embodiment 1

[0038] The embodiment provides a track simulation unit 100, which comprises a frame body 110, an inner track 130 and an outer track 140 arranged on the frame body 110, and the inner track 130 is distributed at equal intervals with the outer track 140, the inner track 130 and the outer track 140 are shaped according to the parameters of the wheel tread, and the shape of the actual track is formed, and the interval of the inner track 130 and the outer track 140 on the same side is controlled as 1435±2mm, which meets the standard track gauge requirement and mainly plays a role of bearing the bogie. The outer track 140 is higher than the inner track 130, so as to simulate a small section of the continuous curve track with a large radius supporting the bogie, which meets the track structure of the railway vehicle group when turning. At least two observation holes 111 are arranged at intervals on the frame body 110, and each observation hole 111 is arranged through along the height direction of the frame body 110, the frame body 110 is positioned through the at least two observation holes 111, and the center curve of the inner track 130 and the outer track 140 is equivalent to the set track curve radius in use; in a mode of profiling simulation, the modular track simulation unit 100 is used to replace the railway track line, and the track simulation unit 100 arranged at intervals can support one bogie, so as to simulate the capacity of the vehicle group in hoisting goods on the track curve. When only hoisting test is needed, a relatively open test site meeting the size layout requirement of the simulated curve is selected, and the setting position of each track simulation unit 100 can be calibrated according to the set track curve radius and the size parameters of the railway vehicle group, each bogie is supported and borne by one track simulation unit 100, each track simulation unit 100 simulates a small section of the actual track, and after the test is completed, the track simulation unit 100 can be stored, the test site can be emptied at any time, the occupation of the site is reduced, and the technical problem that there is no track line meeting the test requirement for test is solved, the new railway line does not need to be built or the existing line needs to be transformed, and the cost is saved.

[0039] The structure and shape of the frame body 110 are not limited in the embodiment, and in some embodiments, the frame body 110 can be a monolithic structure. In the embodiment, in order to reduce weight and control cost, the frame body 110 comprises a frame beam 112 and a diagonal brace 120 connecting opposite corners of the frame beam 112, and the diagonal brace 120 improves the strength of the frame beam 112. The inner track 130 and the outer track 140 are arranged on the two beam bodies arranged opposite to each other of the frame beam 112 respectively; and the at least two observation holes 111 are arranged on the frame beam 112 and / or the diagonal brace 120. In order to facilitate positioning of the track simulation unit 100 and position adjustment, preferably, the at least two observation holes 111 are located between the inner track 130 and the outer track 140, and the hollow part of the frame beam 112 can be fully utilized to cooperate with the diagonal brace 120 for position adjustment.

[0040] As an implementation, the frame beam 112 comprises two longitudinal beams 114 and two transverse beams 113, which are perpendicular to form a square, and the inner rail 130 and the outer rail 140 are arranged on the two longitudinal beams 114 respectively. The end of the diagonal brace 120 is connected with the longitudinal beam 114 and the transverse beam 113 at the same time, so as to ensure that the structural strength meets the requirements and stably supports the railway vehicle group to be tested.

[0041] As a preferred implementation, the at least two observation holes 111 are arranged on the diagonal brace 120 and are spaced along the axial direction of the diagonal brace 120, and one of the observation holes 111 is located at the midpoint of the spacing between the inner rail 130 and the outer rail 140, which can be used as a reference for positioning. When arranging the track simulation unit 100, the observation hole 111 located at the center of the spacing between the inner rail 130 and the outer rail 140 is aligned with the center line of the track curve. The track simulation unit 100 provided in this embodiment corresponds to one bogie, for example, each vehicle of the railway vehicle group 600 has only two bogies, so that each two track simulation units 100 form a set and are used together to bear the two bogies at the two ends of the same vehicle.

[0042] In order to facilitate the positioning of the track simulation unit 100 and the determination of the spacing and position of adjacent track simulation units 100 during use, preferably, the observation hole 111 located on the diagonal brace 120 and at the midpoint of the spacing between the inner rail 130 and the outer rail 140 is located at the center of the track simulation unit 100, that is, it is just projected on the set track radius curve, so as to facilitate the positioning of a single track simulation unit 100 and the distance positioning of adjacent two track simulation units 100, and ensure that the subsequent test requirements are met.

[0043] In order to ensure the horizontal placement of the frame body 110 and improve the stability, in this embodiment, the frame body 110 further comprises a bottom plate 150 arranged on the bottom surface of the frame beam 112, and the bottom plate 150 is in contact with the ground. In some implementations, the bottom plate 150 can be a whole plate; in order to reduce the weight, as an implementation, the number of the bottom plate 150 is four, which are arranged at the four corners of the frame body 110 and are connected to the bottom surface of the longitudinal beam 114 and the transverse beam 113 at the same time, further strengthening the strength of the frame.

[0044] In order to facilitate the lifting and transfer of the track simulation unit 100, in this embodiment, the frame beam 112 is further provided with lifting lugs 160. Preferably, the lifting lug 160, the inner rail 130 and the outer rail 140 are arranged on different beam bodies, so as to ensure the structural strength of the beam body on which the inner rail 130 and the outer rail 140 are arranged, and avoid deformation and the like.

[0045] Since the outer rail 140 is higher than the inner rail 130, the height of the outer rail 140 on the frame body 110 is greater, in order to ensure the strength of the outer rail 140 when carrying the bogie, in the embodiment, the frame body 110 further comprises a reinforcing support 180 for connecting the outer rail 140 and the frame beam 112.

[0046] The specific structure of the reinforcing support 180 is not limited in the embodiment, and can be any feasible connecting structure or arrangement. As an embodiment, the reinforcing support 180 comprises reinforcing plates arranged on two sides of the cross beam 113 along the longitudinal beam 114, and connecting the cross beam 113 and the outer rail 140.

[0047] In order to prevent the wheel set of the bogie from sliding displacement on the track simulation unit 100 during the experiment of the railway vehicle group, in the embodiment, the frame body 110 further comprises a baffle plate 170 arranged at the axial ends of the inner rail 130, so as to limit the sliding of the two wheel sets of the bogie.

[0048] In order to match the shape of the wheel set and abut the outer side of the wheel set, and at the same time to enhance the strength of the baffle plate 170, in the embodiment, the baffle plate 170 comprises a bent plate 171 and a reinforcing rib plate 172, the reinforcing rib plate 172 is connected with the two bent sections of the bent plate 171, and the bent plate 171 is connected with the inner rail 130.

[0049] Considering that when the railway vehicle group is placed on the curved track, the load carried by the inner rail 130 is greater than that carried by the outer rail 140, in order to control the weight of the track simulation unit 100 for easy transportation and control the cost, in the embodiment, the outer rail 140 comprises two track segments 141 arranged at intervals along the axial direction of the outer rail 140, and the inner rail 130 is a complete track.

[0050] The shapes of the inner rail 130 and the outer rail 140 are not specifically limited in the embodiment, as long as the standard rail surface parameters and the gauge are met. For example, in some embodiments, the inner rail 130 and the outer rail 140 can be designed as circular arc segment tracks corresponding to the required track curve radius of the test at the same time, but such a design needs to replace the inner rail 130 and the outer rail 140 or make the track simulation unit 100 when aiming at different railway vehicle groups. In order to realize modular use and meet the simulation of different test track curve radii at the same time, in the embodiment, preferably, the inner rail 130 and the outer rail 140 are both straight rails, and the inner rail 130 and the outer rail 140 are parallel to each other. Since a large-radius curve can be equivalent to a large number of straight lines spliced to obtain, after the track curve radius exceeds a certain value, a straight line can be used to replace a small curve, and the embodiment directly sets the inner rail 130 and the outer rail 140 as straight rails to realize the equivalent simulation of the track curve by using straight lines to replace curves and the equivalent simulation of the track curve by setting a plurality of track simulation units 100 at intervals, which can be directly applied to the equivalent simulation of tracks corresponding to different track curve radii. The layout of the simulated curve can be adjusted at any time according to the requirements, and the track curve of different radii within a certain range can be adapted.

[0051] The track simulation unit 100 provided by the application belongs to a modular composition, has a simple structure and is easy to manufacture. The track simulation unit 100 has a uniform specification and good stability, and effectively meets the test requirements. The track simulation unit 100 has a simple curve layout, is easy to arrange and convenient to operate. The track simulation unit 100 does not need to be newly built or modified on an existing line, thereby saving costs. When in use, the layout of the simulated line can be adjusted according to the requirements, and after the test is completed, the track simulation unit 100 can be stored without occupying extra space.

[0052] Embodiment 2

[0053] Based on the same inventive concept, the embodiment provides a track vehicle group hoisting test method based on the track simulation unit 100 provided in embodiment 1, which comprises the following steps:

[0054] A positioning curve is plotted on the test site according to the set track curve radius, and the calibration positions corresponding to the bogies of the track vehicle group 600 are marked;

[0055] The track simulation units 100 are arranged one by one at the calibration positions marked on the track vehicle group 600, and the number of the track simulation units 100 is the same as the number of the bogies of the track vehicle group 600;

[0056] The track vehicle group 600 is arranged on the track simulation units 100, and the bogies of the track vehicle group 600 are attached to the inner rail 130 and the outer rail 140, so as to ensure that the wheels are completely positioned and prevent the vehicle from overturning during the hoisting test;

[0057] The rail vehicle group 600 hoists the steel rail outside the outer rail 140 to perform a lifting test.

[0058] Some rail vehicle groups 600 are used to jointly lift on a railway curve. To verify the functionality of the rail vehicle group 600, a lifting test needs to be performed on the rail vehicle group 600. If the rail vehicle group 600 can smoothly complete the lifting on a track with the corresponding minimum radius, the lifting can be more smoothly completed on a track with a larger radius and a straight track. Since the track radius required for the test of some rail vehicle groups 600 is large, the existing line cannot meet the test requirements. The embodiment proposes to use a simulated curve to perform test verification using a plurality of track simulation units 100. A single track simulation unit 100 simulates a small section of track supporting the position of the bogie. A plurality of track simulation units 100 are arranged in the extension direction of the set track curve at intervals, which is equivalent to an actual track curve. Through the way of profile simulation, the track simulation unit 100 is used to replace the railway line to simulate the lifting capacity of the rail vehicle group 600 on the curved track. During the test, a relatively open test site is mainly considered to meet the layout requirements of the simulated curve. After the test is completed, the track simulation unit 100 can be stored and the test site can be emptied at any time to reduce the occupation of the site. The track simulation unit 100 has stable structure and effectively meets the test requirements.

[0059] It should be noted that the set track curve radius corresponds to the curve of the center of the width direction of the bogie, that is, the curve where the center of the distance between the inner rail 130 and the outer rail 140 is located. Before the test, a radius value is selected as the set track curve radius for the test through calculation.

[0060] According to the set track curve radius, a positioning curve is plotted on the test site, which specifically includes that a bogie center curve 200 corresponding to the set track curve radius is plotted; an inner rail curve 300 and an outer rail curve 400 corresponding to the inner rail 130 and the outer rail 140 are plotted according to the bogie center curve 200 and the track gauge; and a corresponding observation curve is plotted according to the distance between the observation hole 111 and the inner rail 130 / outer rail 140.

[0061] When one of the observation holes 111 is located at the center of the frame body 110 and at the center of the distance between the inner rail 130 and the outer rail 140, the observation hole 111 is projected on the bogie center curve 200, that is, the observation curve is the bogie center curve 200. Through the positioning of at least two points of at least two observation holes 111, the track simulation unit 100 is hoisted to the designated position in sequence by the lifting trolley, and the state of each track simulation unit 100 is detected and checked, and the landing stability of the frame is checked without warping.

[0062] The positioning curve is plotted on the test site according to the set track curve radius, and specifically, the storage area 500 of the test steel rail to be hoisted is plotted on the outer side of the outer rail curve 400. In this embodiment, the storage area 500 is composed of two boundary curves 510.

[0063] Before the rail vehicle group 600 hoists the steel rail outside the outer rail 140, the rail vehicle group hoisting test method further comprises placing the test steel rail to be hoisted in the storage area 500.

[0064] The calibration position corresponding to each bogie of the rail vehicle group 600 is marked, specifically, the center distance of the two track simulation units 100 in the length direction is determined according to the center distance of the adjacent two bogies of the rail vehicle group, so that the center distance of the adjacent two track simulation units 100 is the same as the set center distance of the adjacent two bogies.

[0065] The rail vehicle group hoisting test method is mainly used to verify the hoisting capacity of the rail vehicle group 600 for long straight goods such as steel rails. In the case that the existing railway line cannot meet the demand, considering that the workload of newly building a railway line or modifying the existing line is very large, the rail vehicle group is simulated to hoist goods on the track curve by using the modular track simulation unit 100 to replace the railway line. When testing, a relatively open test site is mainly considered to meet the layout requirements of the simulation curve. After the test is completed, the track simulation unit 100 can be stored and placed, the test site can be emptied at any time, and the occupation of the site is reduced. The modular track simulation unit 100 has stable structure and effectively meets the test requirements.

[0066] Application example

[0067] As shown in Figure 4 A rail vehicle group consists of five vehicles with a total length of about 100 meters, mainly used for hoisting and transporting railway steel rails. The rail vehicle group needs to be jointly hoisted on the railway curve. According to the test requirements, the hoisting test capacity of the vehicle group for steel rails needs to be verified on a railway line with a track curve radius of R=225m and a total length of not less than 110m. Since the existing line cannot meet the test requirements, in order to verify the functionality of the vehicle, a simulation curve is used to complete the test verification by using a modular track simulation unit. Taking the example of two observation holes on the inclined support, one observation hole is located at the center of the frame body, and the other observation hole is located near the outer rail and has a center distance of 499mm along the direction of the cross beam. The outer rail and the inner rail are symmetrically distributed with the frame body.

[0068] 1) According to the requirements of the lifting test layout, a piece of open space with a longitudinal length of 110m and a transverse width of 15m is selected, and the bogie center curve R=225m 200, the inner rail curve 300 and the outer rail curve 400 symmetrically distributed on both sides of the bogie center curve with a spacing of 1435mm, the observation curve (not shown in the figure, the other observation curve coincides with the bogie center curve) close to the outer rail and 499mm from the bogie center curve 200, two boundary curves 510 of the storage area 500 are measured at a distance of 575mm and 780mm from the outer side of the outer rail curve 400, the distance between the two track simulation units of the same vehicle is 14500mm, which is consistent with the bogie distance parameter of the vehicle, the calibration position corresponding to each bogie of the rail vehicle group is marked, and the layout of the positioning curve is completed.

[0069] The track simulation unit is lifted to the calibration position by the lifting trolley, and the state of each track simulation unit is detected and checked. The stability of the frame on the ground is checked, and there is no warping phenomenon.

[0070] The vehicle group is sequentially placed on the track simulation unit, and the fit of the bogie wheel with the inner rail and the outer rail is observed during the placement to ensure that the wheel is completely placed and prevent the vehicle from tipping over during the lifting test.

[0071] According to the requirements of the test outline, the steel rails for the test are lifted to the designated storage position. The basic situation of the vehicle group is checked, and the connection state between each vehicle is confirmed to ensure the effective linkage effect. After completing the subsequent lifting test according to the test outline, the simulation track simulation unit is removed and stored for the next test of other vehicle models.

[0072] The application example simulates the production of a set of track simulation units, each two track simulation units form a group, which are used to support the wheels of the two bogies of the vehicle. Through the combination, the layout requirements of the vehicle group on the track with a radius of R=225m can be met. The track simulation unit is modular, which can be arranged into the required curve state according to the layout requirements. After the test is completed, it can be stored and stacked to reduce the occupation of the site. The modular bearing frame is used to simulate the state of the track curve, which avoids the construction of new railway lines or the modification of existing lines and reduces unnecessary investment costs. The track simulation unit has good structural stability, is provided with lifting lugs for easy lifting, and can be adjusted at any time according to the test requirements.

[0073] While the preferred embodiments of the application have been described, additional variations and modifications can be made to these embodiments by those of ordinary skill in the art once they have the benefit of the foregoing description. Therefore, the appended claims are intended to encompass within their scope all such variations and modifications as are within the scope of the application. It is to be understood that the application is not limited to particular embodiments described, and is intended to include all modifications and alterations from this description.

[0074] It is apparent that many modifications and variations of this application can be effected although only a few have been chosen for purposes of disclosure. Thus, it is intended to embrace all alternatives and modifications of the described embodiments.

Claims

1. A method for hoisting test of rail vehicle sets based on track simulation units, characterized in that, Includes the following steps: Based on the set track curve radius, the positioning curve is plotted on the test site, and the calibration position corresponding to each bogie of the rail vehicle group is marked. The same number of track simulation units as the bogies of the rail vehicle group are set at the marked calibration positions; The orbit simulation unit includes: The frame body is provided with at least two observation holes at intervals, and the observation holes are arranged to extend through the height direction of the frame body. The inner rail is located on the frame body; An outer rail is provided on the frame body and is distributed at equal intervals with the inner rail. The outer rail is higher than the inner rail. The frame body includes frame beams and diagonal braces connecting the frame beams at opposite corners. The at least two observation holes are provided on the frame beam and / or the diagonal brace, and are located between the inner rail and the outer rail; The at least two observation holes are provided on the diagonal brace and are spaced apart along the axial direction of the diagonal brace, and one of the observation holes is located at the midpoint of the distance between the outer rail and the inner rail; The rail vehicle group is placed on the track simulation unit, and the bogie of the rail vehicle group is in contact with both the inner and outer rails. The rail vehicle assembly lifts the rail located outside the outer rail for a lifting test; The step of mapping the positioning curve on the test site according to the set track curve radius specifically includes: mapping the corresponding bogie center curve according to the set track curve radius; mapping the inner rail curve and outer rail curve corresponding to the inner rail and the outer rail respectively according to the bogie center curve and the track gauge; and mapping the corresponding observation curve according to the distance between the observation hole and the inner / outer rail.

2. The method for hoisting and testing rail vehicle sets as described in claim 1, characterized in that, The inner rail and the outer rail are respectively installed on two beams that are arranged opposite to each other on the frame beam.

3. The method for hoisting and testing rail vehicle sets as described in claim 2, characterized in that, The frame body also includes a base plate disposed on the bottom surface of the frame beam; The frame beam is also provided with lifting lugs, and the lifting lugs, the inner rail and the outer rail are provided on different beam bodies.

4. The method for hoisting and testing rail vehicle sets as described in claim 2, characterized in that, The frame body also includes reinforcing brackets for connecting the outer rail and the frame beam.

5. The method for hoisting and testing rail vehicle sets as described in claim 2, characterized in that, The frame body also includes baffles located at both axial ends of the inner rail.

6. The method for hoisting and testing rail vehicle sets as described in claim 5, characterized in that, The baffle includes a bent plate and a reinforcing rib plate. The reinforcing rib plate is connected to both bent sections of the bent plate, and the bent plate is connected to the inner rail.

7. The method for hoisting test of a rail vehicle assembly as described in any one of claims 1-6, characterized in that, The outer rail comprises two track segments spaced apart along the axial direction of the outer rail.

8. The method for hoisting test of a rail vehicle assembly as described in any one of claims 1-6, characterized in that, Both the inner and outer rails are straight tracks, and the inner and outer rails are parallel to each other.

9. The method for hoisting test of a rail vehicle assembly as described in claim 1, characterized in that, The process of mapping the positioning curve on the test site according to the set track curve radius specifically includes mapping the storage area for the test rails to be hoisted on the outer side of the outer track curve. Before the railcar assembly lifts the rail located outside the outer rail, the railcar assembly lifting test method further includes placing the rail to be lifted for the test in the storage area.

10. The method for hoisting and testing a rail vehicle assembly as described in claim 1, characterized in that, The marking of the calibration positions corresponding to each bogie of the rail vehicle group specifically includes determining the center distance of two track simulation units along the length direction based on the center distance between two adjacent bogies of the rail vehicle group.

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