Cross crossover construction method of existing line

Abstract

The invention relates to the technical field of railway transformation construction, in particular to a cross crossover construction method of an existing line, which comprises the following steps of: removing an existing component at a preset mounting position of a cross crossover; the cross crossover is divided into at least two segments, and the segments are assembled; the assembling position of each section is staggered from the corresponding mounting position along the transverse direction of the existing line, the assembling position of at least one section is staggered from the corresponding mounting position along the longitudinal direction of the existing line, and the assembling positions of the sections are mutually staggered; the sections are moved to the position above the existing line through a transverse moving mechanism; and the segments are moved towards the corresponding installation positions along the existing line, the segments are lowered to the corresponding installation positions, and installation of the segments is completed. The technical problem that the construction of the cross crossover is difficult to carry out due to the fact that the requirement of an existing cross crossover construction method for an open field is too high can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of railway reconstruction construction, and particularly relates to a construction method for a crossover on an existing line. Background Art

[0002] With the technological upgrade of railway transportation, sometimes it is necessary to upgrade and reconstruct existing lines. Building a new turnout on an existing line is one of the upgrade and reconstruction projects. There are two forms of existing turnout construction. One is the in-place assembly of the whole turnout, that is, directly assembling the turnout at the predetermined installation position of the turnout, and then carrying out the front and rear connection and backfilling and tamping operations after the assembly is completed. However, this method takes a long time to block and has a great impact on transportation organization, so it has gradually withdrawn from the stage of inserting turnouts within the blocked time of the existing line.

[0003] The other way is to pre-assemble the whole turnout on one side of the existing line, and the assembly position is horizontally opposite to one side of the predetermined installation position along the existing line. Subsequently, use the blocked time to insert the whole turnout horizontally into the predetermined installation position along the existing line. This method can reduce the blocked time and the impact of construction on transportation organization. However, since it is necessary to assemble, insert and stack the corresponding materials and equipment of the whole turnout on one side of the existing line, this construction method requires a sufficiently large open space on one side of the existing line to accommodate the pre-assembled turnout, and there are no obstacles blocking the horizontal movement of the turnout within the insertion operation range of the whole turnout. Therefore, it is generally only applicable to the construction of turnouts with smaller sizes. When the turnout is a crossover with a larger size, the demand for open space of this construction method often cannot be supported by the on-site conditions, resulting in difficulties in the construction of the crossover. There is an urgent need to develop a new construction method for the crossover. Summary of the Invention

[0004] The purpose of the present invention is to overcome the technical problem that the existing construction method for the crossover has too high a demand for open space, resulting in difficulties in the construction of the crossover, and to provide a construction method for a crossover on an existing line.

[0005] In a first aspect, the present invention provides a construction method for a crossover on an existing line, including the following steps:

[0006] S1. Remove the existing components at the predetermined installation position of the crossover; divide the crossover into at least two segments and assemble each segment; the assembly position of each segment is staggered horizontally from the corresponding installation position along the existing line, and the assembly position of at least one segment is staggered longitudinally from the corresponding installation position along the existing line, and the assembly positions of each segment are staggered from each other;

[0007] S2. Move the segment to above the existing line through a transverse movement mechanism;

[0008] S3, moving the segment toward the corresponding installation position along the existing line, lowering the segment to the corresponding installation position, and completing the installation of the segment;

[0009] S4. Repeat steps S2 to S3 until all segments are installed.

[0010] The crossover construction method of the existing line of the present scheme divides the crossover into at least two smaller segments, and each segment is assembled at a different assembly position, and then inserted into the corresponding predetermined installation position respectively; compared with the scheme of the prior art in which the crossover is assembled as a whole and then inserted as a whole, the present scheme breaks the whole into parts, no longer requires a large area of ​​a whole open space, but only requires two or more smaller scattered open spaces, that is, the present scheme can reduce the demand for open spaces for the construction of the crossover, and has stronger versatility than the prior art, so that it is easier to find a site that meets the requirements, ensuring the normal progress of the crossover construction.

[0011] On the other hand, compared with the prior art in which the assembly position of the turnout is located on the direct side of the predetermined installation position, the present solution also utilizes the existing line to transport the segments along the longitudinal direction of the existing line, so that the assembly position of the segments can also be staggered from the predetermined installation position along the longitudinal direction of the existing line, so that the assembly position of the segments is no longer limited to the direct side of the predetermined installation position, but can also be selected at a place far away from the predetermined installation position along the longitudinal direction of the existing line; that is, the site selection of the assembly position of the segments in the present solution is more flexible than that of the prior art, and can further reduce the demand for open space in the present solution.

[0012] At the same time, when the assembly position of the segment is offset from the predetermined installation position along the longitudinal direction of the existing line, the area where the segment moves laterally along the transverse direction of the existing line will also be offset from the front side of the predetermined installation position, thereby preventing the lateral movement of the segment from being hindered by obstacles on the front side of the predetermined installation position; for example, if there is an obstacle blocking the front side of the predetermined installation position, the assembly position of the corresponding segment can be moved along the longitudinal direction of the existing line to outside the blocking range of the obstacle, thereby ensuring that the segment can be normally moved laterally above the existing line, and then moved longitudinally to the predetermined installation position, that is, this solution can prevent the construction of the crossover from being hindered by obstacles on the front side of the predetermined installation position of the crossover, thereby ensuring the normal construction of the crossover.

[0013] Preferably, step S2 comprises the following steps:

[0014] S21, setting up a slide rail, the slide rail is arranged along the horizontal direction of the existing line, one end of the slide rail leads to the assembly position of the segment, and the other end of the slide rail leads to the insertion position, and the insertion position is aligned with the corresponding installation position of the segment along the horizontal direction of the existing line; a transport vehicle is arranged on the slide rail, and the transport vehicle can move along the length direction of the slide rail;

[0015] S22. Move the carrier vehicle under the precast segment and move the carrier vehicle along the length direction of the slide rail until the precast segment enters the insertion position.

[0016] This solution recommends one specific way of laterally moving the precast segment.

[0017] Preferably, the carrier vehicle includes rollers and a hydraulic motor. The hydraulic motor is in transmission connection with the rollers, and the rollers can roll on the slide rail.

[0018] This solution recommends that the carrier vehicle be driven by a hydraulic motor, which can not only enable the carrier vehicle to obtain sufficient traction to tow the movement of the precast segment, but also ensure that the carrier vehicle has a high displacement accuracy, so that the precast segment can also obtain a higher positioning accuracy, thus ensuring the normal progress of subsequent construction.

[0019] Preferably, a first limit groove is provided on the carrier vehicle, and the width of the first limit groove matches the width of the steel rail of the precast segment;

[0020] And / or, a second limit groove is provided on the carrier vehicle, and the width of the second limit groove matches the width of the sleeper of the precast segment.

[0021] This solution provides a first limit groove and / or a second limit groove on the carrier vehicle, which are respectively used to limit the steel rail part of the precast segment during lateral movement and the sleeper part of the precast segment during longitudinal movement, so as to avoid the situation that the precast segment slips off the carrier vehicle.

[0022] Preferably, rollers are provided on the upper surface of the first limit groove, and / or rollers are provided on the upper surface of the second limit groove.

[0023] On the one hand, this solution can convert the relative sliding between the precast segment and the carrier vehicle into the rolling of the rollers, thus avoiding the situation of mutual scratching between the precast segment and the carrier vehicle; on the other hand, it also enables the staff to more conveniently fine-tune the relative position between the precast segment and the carrier vehicle, so as to ensure the positioning accuracy of the precast segment, or transfer the precast segment from the carrier vehicle to other positions.

[0024] Preferably, step S3 includes the following steps:

[0025] S31. Install longitudinal movement row wheels at the predetermined installation position of the crossover. The longitudinal movement row wheels include a frame body and rolling elements; the bottom of the frame body is connected to the ground, the rolling elements are rotatably connected to the top of the frame body, and the axis of the rolling elements is arranged along the lateral direction of the existing line;

[0026] S32. Move the precast segment along the existing line in the direction close to the corresponding installation position until the precast segment reaches the longitudinal movement row wheels;

[0027] S33. Place the precast segment above the longitudinal movement row wheels and move the precast segment longitudinally along the existing line until the precast segment reaches above the corresponding installation position;

[0028] S34. Lower the segment to the predetermined elevation and complete the installation of the segment.

[0029] Before installing the segment, it is necessary to first remove the existing line within the predetermined installation position. Therefore, if you want to transport the segment along the existing line above the predetermined installation position, it is also necessary to set up temporary running rails within the predetermined installation position and connect them to the existing line, and then remove them after completing the longitudinal movement of the segment, which will lead to a reduction in construction efficiency; this solution recommends using longitudinal movement row wheels to replace the temporary running rails at the predetermined installation position of the crossover to achieve the longitudinal movement of the segment, thereby avoiding the construction operation of the temporary running rails within the predetermined installation position and the subsequent corresponding removal operation, which is beneficial to improving the construction efficiency of the solution and reducing the construction period.

[0030] Preferably, the number of longitudinal movement row wheels is at least four, and the longitudinal movement row wheels are distributed at intervals along the longitudinal and transverse directions of the existing line.

[0031] This solution recommends dispersedly setting longitudinal movement row wheels within the predetermined installation position, which can not only reliably support the segment from various different positions but also facilitate the subsequent removal of the longitudinal movement row wheels, which is beneficial to further improving the construction efficiency of this solution and reducing the construction period.

[0032] Preferably, after removing the existing components at the predetermined installation position of the crossover in step S1, use a rail transport vehicle to transport the removed existing components away from the predetermined installation position of the crossover along the existing line.

[0033] This solution uses the existing line to transport the removed existing components away from the predetermined installation position of the crossover, which can avoid the situation where the removed existing components are stacked near the predetermined installation position, occupying the open space, resulting in obstacles to subsequent construction and an increase in the demand for open space in this solution.

[0034] Preferably, transporting the removed existing components away from the predetermined installation position of the crossover includes the following steps:

[0035] S11. Set at least two rail transport vehicles at intervals on the existing line, and the distance between the rail transport vehicles is less than the length of the removed existing components;

[0036] S12. Lap the two ends of the removed existing components on the two rail transport vehicles respectively;

[0037] S13. Move the rail transport vehicle along the existing line until the rail transport vehicle and the removed existing components are far away from the predetermined installation position of the crossover.

[0038] This solution provides one specific method for transporting existing components. Compared with using a rail transport vehicle with a complete longitudinal skeleton and transverse skeleton, in this solution, at least two rail transport vehicles are arranged longitudinally at intervals along the existing line, and then the two ends of the existing component are respectively lapped on the rail transport vehicles. This is equivalent to using the existing component as the longitudinal skeleton. On the one hand, it can reduce the manufacturing cost of the rail transport vehicle, and on the other hand, it also makes the rail transport vehicle have better versatility and can flexibly adapt to existing components of different sizes.

[0039] Preferably, in step S1, the crossover is divided into four single - turnout switches and a diamond crossover.

[0040] This solution provides one specific method for dividing the crossover, which can achieve a good balance among reducing the size and construction difficulty of a single segment, reducing the number of segments, and reducing the construction steps.

[0041] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0042] The present invention provides a construction method for the crossover of an existing line. By splitting the crossover into at least two segments with smaller sizes, and each segment is assembled at different assembly positions and then inserted into the corresponding predetermined installation positions respectively, the present invention no longer requires a large - area open space, but only needs two or more smaller - area dispersed open spaces. Compared with the prior art, the present invention can more flexibly select the location for segment assembly, thereby reducing the requirement for open space in the crossover construction, and then it is easier to find a site that meets the requirements and ensure the normal progress of the crossover construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 is a schematic plan view of a crossover in Embodiment 1.

[0044] Figure 2 is a schematic plan view of a crossover division method in Embodiment 1;

[0045] Figure 3 is a schematic diagram of the construction steps of a construction method for the crossover of an existing line in Embodiment 1 Figure 1 ;

[0046] Figure 4 is a schematic diagram of the construction steps of a construction method for the crossover of an existing line in Embodiment 1 Figure 2 ;

[0047] Figure 5 is a schematic diagram of the construction steps of a construction method for the crossover of an existing line in Embodiment 1 Figure 3 ;

[0048] Figure 6 It is a schematic diagram of the construction steps of a crossover turnout construction method for an existing line in Embodiment 1 Figure 4 ;

[0049] Figure 7 It is a schematic diagram of the construction steps of a crossover turnout construction method for an existing line in Embodiment 1 Figure 5 ;

[0050] Figure 8 It is a schematic diagram of the construction steps of a crossover turnout construction method for an existing line in Embodiment 1 Figure 6 ;

[0051] Figure 9 It is a schematic diagram of the segmented lateral movement steps in a crossover turnout construction method for an existing line in Embodiment 1;

[0052] Figure 10 It is a schematic diagram of the segmented longitudinal movement steps in a crossover turnout construction method for an existing line in Embodiment 1;

[0053] Figure 11 It is a three-dimensional structure diagram of a carrier vehicle in a crossover turnout construction method for an existing line in Embodiment 1;

[0054] Figure 12 It is a front view structure diagram of a carrier vehicle in a crossover turnout construction method for an existing line in Embodiment 1;

[0055] Figure 13 It is a three-dimensional structure diagram of a longitudinal movement row of wheels in a crossover turnout construction method for an existing line in Embodiment 1;

[0056] Figure 14 It is a three-dimensional structure diagram of a rail transport vehicle in a crossover turnout construction method for an existing line in Embodiment 1;

[0057] Figure 15 It is a working state diagram of a rail transport vehicle carrying existing components in a crossover turnout construction method for an existing line in Embodiment 1;

[0058] Icon:

[0059] 1 - Crossover turnout; 11 - Segment;

[0060] 2 - Slide rail;

[0061] 3 - Carrier vehicle; 31 - Vehicle body; 32 - Roller; 321 - Passive gear; 33 - Hydraulic motor; 331 - Active gear; 35 - Roller;

[0062] 4 - Longitudinal movement row of wheels; 41 - Frame; 42 - Rolling element;

[0063] 5 - Track transport vehicle; 51 - Lateral skeleton; 52 - Traveling wheels;

[0064] 6 - Existing line; 7 - Rail; 8 - Sleeper. Specific implementation manner

[0065] The present invention will be further described in detail below in conjunction with specific embodiments. However, this should not be construed as limiting the scope of the above - mentioned subject matter of the present invention to the following embodiments. All technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0066] In the description of the specific embodiments of the present invention, without special explanation, the expression terms of the orientation or positional relationship indicated by "upper", "lower", "left", "right", "center", "inner", "outer", etc. are all based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the invention product / device / equipment is normally used. These terms of orientation or positional relationship are only for the convenience of describing the solution of the present invention or simplifying the description in the specific embodiments, facilitating technicians to quickly understand the solution, rather than indicating or implying that a specific device / component / element must have a specific orientation or be constructed and operated in a specific positional relationship. Therefore, it should not be construed as a limitation to the present invention.

[0067] In addition, for terms such as "horizontal", "vertical", "hanging", "parallel", etc., it does not mean that the corresponding device / component / element is required to be absolutely horizontal or vertical or hanging or parallel, but it can be slightly inclined or have a deviation. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and it does not mean that the structure must be completely horizontal, but it can be slightly inclined. Or, it can be simply understood that the corresponding device / component / element is arranged in the "horizontal", "vertical", "hanging", "parallel" and other directions, and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably within ±8% of the error / deviation, more preferably within ±6% of the error / deviation, more preferably within ±5% of the error / deviation, more preferably within ±4% of the error / deviation. As long as the corresponding device / component / element is within the error / deviation range, it can still play its role in the solution of the present invention.

[0068] In addition, the expressions such as "first", "second", "third", etc. in the terms are only used to distinguish the description of the same or similar components, and should not be construed as emphasizing or implying the relative importance of specific components.

[0069] In addition, in the description of the embodiments of the present invention, "several", "multiple", "a number of" represent at least 2. It can be any situation such as 2, 3, 4, 5, 6, 7, 8, 9, etc., and even can be a situation of more than 9.

[0070] In addition, in the description of the technical solution of the present invention, unless otherwise clearly specified / defined / restricted, when the terms "set", "installed", "connected", "linked", "provided with", "laid", "arranged" appear, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection, and can be connection means commonly used in the art such as welding, riveting, bolting, or threaded connection. Such a connection can be a mechanical connection, an electrical connection, or a communication connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the communication inside two components.

[0071] Embodiment 1

[0072] As Figures 1 to 15 shown, a construction method for a crossover on an existing line includes the following steps:

[0073] S1. Demolish the existing components at the predetermined installation position of the crossover 1. The existing components are structures that will hinder the installation operation of the crossover 1, such as Figures 1 to 8 the rails 7 and sleepers 8 of the old crossover 1 marked with dotted lines in [the figure]; divide the crossover 1 into at least two segments 11; assemble each segment 11. The assembly positions of each segment 11 are staggered from the corresponding installation positions along the transverse direction of the existing line 6, and the assembly position of at least one segment 11 is staggered from the corresponding installation position along the longitudinal direction of the existing line 6, and the assembly positions of each segment 11 are also staggered from each other. For example Figures 1 to 2 shown, the crossover 1 is divided into six segments 11, and the six segments 11 are respectively assembled on both sides of the two existing lines 6, so as to be staggered from the corresponding installation positions along the transverse direction respectively; and each segment 11 is also staggered from the corresponding installation position along the longitudinal direction.

[0074] It should be noted that Figure 2 in [the figure], making the assembly position of each segment 11 staggered from the corresponding installation position along the longitudinal direction is only one example; during actual construction, when conditions permit, the assembly position of the segment 11 can also be directly aligned with the corresponding installation position along the longitudinal direction to omit the subsequent longitudinal movement operation.

[0075] S2. Move the segment 11 to above the existing line 6 through a transverse movement mechanism. The transverse movement mechanism includes but is not limited to a crane, a conveyor belt or a slide rail 2 arranged along the transverse direction.

[0076] S3. Move the segment 11 along the existing line 6 towards the corresponding installation position. For example, transport the segment 11 along the longitudinal direction through a vehicle that can run on the existing line 6; after the segment 11 is moved to a specified position near the installation position, lower the segment 11 to the corresponding installation position to complete the installation of the segment 11. The specific equipment used to lower the segment 11 includes but is not limited to a crane, a jack or a lifting oil cylinder.

[0077] S4. Repeat steps S2 to S3 until the installation of all segments 11 is completed. For example Figures 3 to 8 As shown, the six segments 11 are horizontally and vertically moved and inserted into the predetermined installation positions in six steps in sequence.

[0078] It should be noted that if the assembly position of the segment 11 is aligned with the corresponding installation position longitudinally, the longitudinal movement operation of the corresponding segment 11 can be omitted.

[0079] In Figures 1 to 10 , and Figure 12 , arrows are used to mark each direction. The direction indicated by arrow X represents the longitudinal direction of the existing line 6, the direction indicated by arrow Y represents the transverse direction of the existing line 6, and the direction indicated by arrow Z represents the height direction; and when there is no special description, the longitudinal direction in this embodiment is along the direction indicated by arrow X, and the transverse direction is along the direction indicated by arrow Y.

[0080] Figure 2 Taking one of the segments as an example, a dashed box is also used to illustrate the assembly position, insertion position and installation position of the segment. It can be seen that the assembly position of the segment is staggered from the installation position both horizontally and longitudinally; the insertion position is longitudinally aligned with the assembly position and horizontally staggered; the insertion position is longitudinally staggered from the installation device and horizontally aligned.

[0081] In an optional implementation manner, in step S1, the crossover 1 is divided into four single - turnout switches and a diamond crossover.

[0082] In the above - mentioned implementation manner, according to different actual construction situations, the diamond crossover can be integrally assembled on one side of the two transverse sides of the existing line 6, or can be further divided into an upper part and a lower part, and assembled on both sides of the existing line 6 respectively, where the upper and lower parts are connected to the existing line 6 of the upper - line ( Figure 2 the lower existing line 6 in Figure 2 ), and the lower part is connected to the existing line 6 of the lower - line ( Figure 2 the upper existing line 6 in

[0083] In the above embodiments, according to different actual construction conditions, the single turnout can be further divided into a switch part and a frog part and assembled in a segmented manner.

[0084] In an alternative embodiment, after removing the existing components at the predetermined installation position of the crossover 1 in step S1, the removed existing components are transported away from the predetermined installation position of the crossover 1 along the existing line 6 by the rail transporter 5. The rail transporter 5 is a vehicle that can travel longitudinally on the existing line 6 and can carry the existing components; including but not limited to flatbed trucks, trucks equipped with train wheels, or freight trains.

[0085] In the above embodiments, transporting the removed existing components away from the predetermined installation position of the crossover 1 includes the following steps:

[0086] S11. At least two rail transporters 5 are arranged at intervals on the existing line 6, and the distance between two adjacent rail transporters 5 is less than the length of the removed existing components.

[0087] The specific structure of the rail transporter 5 is as Figure 14 shown, including a transverse frame 51 arranged horizontally. Since the existing components will be used as longitudinal frames in the subsequent use of this embodiment, the transverse length of the transverse frame 51 is greater than the longitudinal length; walking wheels 52 are respectively arranged at both ends of the transverse frame 51 along the transverse direction. The rotating shafts of the walking wheels 52 are arranged horizontally, and wheel flanges are arranged on at least one side of the walking wheels 52 along the transverse direction to prevent the walking wheels 52 from derailing.

[0088] S12. The two ends of the removed existing components are respectively lapped on two rail transporters 5. For example Figure 5 as shown, the removed rail 7 can be first placed between two adjacent rail transporters 5. The rail 7 is arranged longitudinally, and both ends of the rail 7 are respectively lapped on the top surface of the rail transporter 5; then, with the rail 7 as the longitudinal frame, the removed sleepers 8 are placed on the rail 7, which can greatly simplify the structure of the rail transporter 5 and reduce the manufacturing cost of the rail transporter 5.

[0089] S13. Move the rail transporter 5 along the existing line 6 until the rail transporter 5 and the removed existing components are far away from the predetermined installation position of the crossover 1. The specific moving method of the rail transporter 5 includes but is not limited to: setting a driving device on the rail transporter 5, such as a motor or an internal combustion engine, to enable the rail transporter 5 to move by itself; towing the rail transporter 5 to move through other vehicles, such as an automobile or an excavator.

[0090] In the above embodiments, a counterweight can also be slidably connected to the transverse frame 51. The counterweight can move horizontally, so that the overall center of gravity of the rail transporter 5 can also move horizontally to enhance the stability of the rail transporter 5 when turning.

[0091] In an alternative embodiment, as Figure 9 shown, step S2 includes the following steps:

[0092] S21. Erect a slide rail 2, which is arranged transversely along the existing line 6. One end of the slide rail 2 leads to the assembly position of the segment 11, and the other end of the slide rail 2 leads to the insertion position. The insertion position is aligned with the corresponding installation position of the segment 11 transversely along the existing line 6, and the insertion position is staggered from the corresponding installation position of the segment 11 longitudinally along the existing line 6. A transporter 3 is arranged on the slide rail 2, and the transporter 3 can move along the length direction of the slide rail 2;

[0093] S22. Move the transporter 3 under the segment 11 and move the transporter 3 along the length direction of the slide rail 2 until the segment 11 enters the insertion position.

[0094] In the above embodiment, in order to avoid the rails 7 and sleepers 8 of the existing line 6 in the insertion position from obstructing the setting of the slide rail 2, the rails 7, sleepers 8 and other obstacles in the insertion position can be removed before installing the slide rail 2. When the transverse movement needs to cross the line, the slide rail 2 can be lapped above the rails 7 of the existing line 6 to be crossed, so as to avoid removing the rails 7 to be crossed.

[0095] In the above embodiment, a number of wooden squares can also be arranged at intervals along the transverse direction at the bottom of the slide rail 2 to better support the slide rail 2.

[0096] In the above embodiment, the number of the slide rails 2 is at least two, and the slide rails 2 are distributed at intervals longitudinally; the specific number of the slide rails 2 is determined according to the longitudinal length of the segment 11, and there should be enough slide rails 2 to avoid too little support between the segment 11 and the existing line 6; the longitudinal distribution distance between two adjacent slide rails 2 is less than or equal to 6 m and greater than or equal to 5 m.

[0097] In the above embodiment, at least two transporters 3 can be arranged at intervals along the transverse direction on each slide rail 2, which can not only prevent too little support between the segment 11 and the slide rail 2, but also enhance the total traction force generated by the transporters 3, so that the segment 11 can move transversely more smoothly.

[0098] In the above embodiment, as Figures 11 to 12 shown, the transporter 3 includes a vehicle body 31, and rollers 32 and a hydraulic motor 33 are arranged at the bottom of the vehicle body 31. The hydraulic motor 33 is in transmission connection with the rollers 32, and the rollers 32 can roll on the slide rail 2. The specific way of the transmission connection includes but is not limited to belt drive or gear drive. For example Figure 12A driving gear 331 is connected to the output shaft of the hydraulic motor 33, and a driven gear 321 is connected to the rotating shaft of the roller 32. The driving gear 331 meshes with the driven gear 321, so that the rotation of the roller 32 can be accurately controlled by the rotation of the hydraulic motor 33, thereby helping the segment 11 to obtain higher positioning accuracy.

[0099] In an alternative embodiment, a first limiting groove is provided on the carrier vehicle 3, and the width of the first limiting groove matches the width of the rail 7 of the segment 11; and / or, a second limiting groove is provided on the carrier vehicle 3, and the width of the second limiting groove matches the width of the sleeper 8 of the segment 11. For example Figure 12 As shown, a groove structure with a larger width is formed by the top surface of the vehicle body 31 of the carrier vehicle 3 being recessed downward, and another groove structure with a smaller width is further provided in the groove structure. The groove structure with the larger width serves as the second limiting groove, and its width W2 is greater than or equal to the longitudinal dimension of the sleeper 8, and the sleeper 8 can be placed therein; the groove structure with the smaller width serves as the first limiting groove, and its width W1 is greater than or equal to the transverse dimension of the rail 7, and the rail 7 can be placed therein.

[0100] In the above embodiment, the width directions of the first limiting groove and the second limiting groove are both perpendicular to the axis direction of the roller 32. Thus, when the carrier vehicle 3 is placed on the slide rail 2 and the axis of its roller 32 is arranged longitudinally, the width direction of the first limiting groove is transverse, which exactly matches the orientation of the rail 7 of the segment 11; and if the carrier vehicle 3 is placed on the rail 7 of the existing line 6 such that the axis of its roller 32 is arranged transversely, the width direction of the first limiting groove is longitudinal, which can exactly match the orientation of the sleeper 8 of the segment 11. This enables the present solution to be used for both the transverse movement and the longitudinal movement of the segment 11 without changing the structure of the carrier vehicle 3, achieving dual use of the carrier vehicle 3.

[0101] In an alternative embodiment, rollers 35 are provided on the upper surface of the first limiting groove, and / or rollers 35 are provided on the upper surface of the second limiting groove. The specific structural forms of the rollers 35 include but are not limited to cylindrical, conical or spherical; for example Figures 11 to 12 As shown, the roller 35 is a cylindrical structure rotatably connected to the vehicle body 31, and the rotating shaft is perpendicular to the axis of the roller 32; several protrusions or pits can be additionally provided on the surface of the roller 35 to increase the friction between the roller 35 and the segment 11.

[0102] In an alternative embodiment, for example Figure 10 As shown, step S3 includes the following steps:

[0103] S31. Install the longitudinal movement row of wheels 4 at the predetermined installation position of the crossover 1. The structure of the longitudinal movement row of wheels 4 is, for example Figure 13As shown, it includes a frame 41 and a rolling body 42; the bottom of the frame 41 is connected to the ground, the rolling body 42 is rotatably connected to the top of the frame 41, and the axis of the rolling body 42 is arranged horizontally along the existing line 6; the specific structural form of the rolling body 42 includes but is not limited to cylindrical, conical or spherical.

[0104] S32, moving the segment 11 along the existing line 6 toward the corresponding installation position until the segment 11 reaches the longitudinal displacement wheel 4. Figure 10 The transport vehicle 3 is used to transport the segment 11 along the longitudinal direction of the existing line 6, and the segment 11 is transferred to the longitudinal transfer wheel 4 at the position where the existing line 6 is disconnected.

[0105] S33, the segment 11 is transferred to the top of the longitudinal shift wheel 4, and the segment 11 is continuously moved along the longitudinal direction of the existing line 6 until the segment 11 reaches the top of the corresponding installation position. When the segment 11 is moved on the longitudinal shift wheel 4, the segment 11 can be moved by other vehicles, such as a car or an excavator towing the segment 11, or a driving device, such as a motor or an internal combustion engine, which is transmission-connected to the rolling body 42, can be set in the longitudinal shift wheel 4, so that the rolling body 42 can rotate by itself and drive the segment 11 to move.

[0106] S34, lowering the segment 11 to a predetermined elevation to complete the installation of the segment 11.

[0107] In the above embodiment, the number of the rolling bodies 42 on each longitudinal shift wheel 4 is at least two, and the rolling bodies 42 are spaced apart in the longitudinal direction.

[0108] In the above embodiment, the outer surface of the rolling body 42 is provided with a rubber layer, which can not only increase the friction between the rolling body 42 and the segment 11 , but also prevent the rolling body 42 and the segment 11 from scratching each other.

[0109] In the above embodiment, the number of the longitudinal shifting wheels 4 is at least four, and the longitudinal shifting wheels 4 are distributed at intervals along the longitudinal direction and the transverse direction of the existing line 6 .

[0110] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for constructing a crossing line of an existing line, characterized in that: The steps include: S1, dismantling existing components at a predetermined installation position of a crossover (1); dividing the crossover (1) into at least two sections (11), and assembling each of the sections (11); the assembly position of each of the sections (11) is staggered from the corresponding installation position along the lateral direction of the existing line (6), the assembly position of at least one of the sections (11) is staggered from the corresponding installation position along the longitudinal direction of the existing line (6), and the assembly positions of each of the sections (11) are staggered from each other; S2, moving the segment (11) to above the existing line (6) by means of a transverse movement mechanism; S3, moving the segment (11) toward the corresponding installation position along the existing line (6), lowering the segment (11) to the corresponding installation position, and completing the installation of the segment (11); S4. Repeat steps S2 to S3 until the installation of all the segments (11) is completed.

2. The method for constructing a crossing line of an existing line according to claim 1, characterized in that: Step S2 includes the following steps: S21, setting up a slide rail (2), wherein the slide rail (2) is arranged in the transverse direction of the existing line (6), one end of the slide rail (2) leads to the assembly position of the segment (11), and the other end of the slide rail (2) leads to the insertion position, and the insertion position is aligned with the corresponding installation position of the segment (11) in the transverse direction of the existing line (6); a transport vehicle (3) is arranged on the slide rail (2), and the transport vehicle (3) can move along the length direction of the slide rail (2); S22, moving the transport vehicle (3) to below the segment (11), and moving the transport vehicle (3) along the length direction of the slide rail (2) until the segment (11) enters the insertion position.

3. The method for constructing a crossing line of an existing line according to claim 2, characterized in that: The transport vehicle (3) comprises a roller (32) and a hydraulic motor (33); the hydraulic motor (33) is transmission-connected to the roller (32); and the roller (32) is capable of rolling on the slide rail (2).

4. The method for constructing a crossing line of an existing line according to claim 2, characterized in that: The transport vehicle (3) is provided with a first limiting groove, the width of which matches the width of the steel rail (7) of the segment (11); And / or, the transport vehicle (3) is provided with a second limiting groove, the width of the second limiting groove matches the width of the sleeper (8) of the segment (11).

5. The method for constructing a crossing line of an existing line according to claim 4, characterized in that: A roller (35) is disposed on the upper surface of the first limiting groove, and / or a roller (35) is disposed on the upper surface of the second limiting groove.

6. A method for constructing a crossing line of an existing line according to any one of claims 1 to 5, characterized in that: Step S3 includes the following steps: S31, installing a longitudinal displacement wheel (4) at a predetermined installation position of the crossover (1), wherein the longitudinal displacement wheel (4) comprises a frame (41) and a rolling body (42); the bottom of the frame (41) is connected to the ground, the rolling body (42) is rotatably connected to the top of the frame (41), and the axis of the rolling body (42) is arranged in the transverse direction of the existing line (6); S32, moving the segment (11) along the existing line (6) toward a direction close to a corresponding installation position until the segment (11) reaches the longitudinal displacement wheel (4); S33, placing the segment (11) above the longitudinally movable wheel (4), and moving the segment (11) along the longitudinal direction of the existing line (6) until the segment (11) reaches above the corresponding installation position; S34, lowering the segment (11) to a predetermined elevation to complete the installation of the segment (11).

7. The method for constructing a crossing line of an existing line according to claim 6, characterized in that: The number of the longitudinal shifting wheels (4) is at least four, and the longitudinal shifting wheels (4) are distributed at intervals in the longitudinal and transverse directions of the existing line (6).

8. A method for constructing a crossing line of an existing line according to any one of claims 1 to 5, characterized in that: After the existing components at the predetermined installation position of the crossover (1) are removed in step S1, the removed existing components are transported away from the predetermined installation position of the crossover (1) along the existing line (6) by a rail transport vehicle (5).

9. The method for constructing a crossing line of an existing line according to claim 8, characterized in that: The method of transporting the dismantled existing components away from the predetermined installation position of the crossover (1) comprises the following steps: S11, arranging at least two of the rail transport vehicles (5) on the existing line (6) at intervals, wherein the interval between the rail transport vehicles (5) is smaller than the length of the dismantled existing components; S12, respectively lap the two ends of the dismantled existing component onto the two rail transport vehicles (5); S13, moving the rail transport vehicle (5) along the existing line (6) until the rail transport vehicle (5) and the dismantled existing components are away from the predetermined installation position of the crossover (1).

10. A method for constructing a crossing line of an existing line according to any one of claims 1 to 5, characterized in that: In step S1, the crossover (1) is divided into four single turnouts and a diamond crossover.

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