Climbing cushion block for movable welding of ballastless steel rail and using method

Abstract

The invention discloses a ballastless steel rail moving welding climbing cushion block and a using method, the ballastless steel rail moving welding climbing cushion block comprises an upper main body, a lower main body, a height piece, a first rail base angle pressing block and a second rail base angle pressing block, the upper main body comprises an upper mounting plate, a first fixing block and a second fixing block, and the first fixing block and the second fixing block are oppositely mounted on the two outer sides of the upper mounting plate; the lower main body comprises a lower mounting plate parallel to the upper mounting plate; the height piece comprises a first height plate and a second height plate; the first height plate and the second height plate are oppositely mounted between the upper mounting plate and the lower mounting plate; one side of the first rail base angle pressing block is provided with a first limiting inclined plane used for being attached to the inclined plane on one side of the rail base angle of the steel rail; a second limiting inclined face used for being attached to the inclined face on the other side of the rail base angle of the steel rail is arranged on one side of the second rail base angle pressing block. According to the ballastless type steel rail moving welding climbing cushion block and the using method, transverse and longitudinal limiting and fixing of a down-slope supporting cushion operation steel rail during flash welding operation are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of rail welding, and more specifically to a ballastless rail mobile welding climbing pad and a use method thereof. Background Art

[0002] With the increase in the operating time and transportation volume of existing lines in my country, rail wear is becoming more and more serious. In order to ensure the safe, stable, reliable and low-speed operation of railways, rail welding is an important link in laying seamless railway lines and an important guarantee for line driving safety.

[0003] At present, during on-site mobile welding, the size of the welding machine conflicts with the track plate structure, so the welding machine cannot be directly placed for welding. The rails on both sides of the weld seam of the welded joint need to be raised to avoid interference with the track plate structure when the welding machine is clamped. The rails on both sides of the welded joint are raised to create a certain slope, which is called slope support. After the welding machine climbs the slope, the welding operation can be completed smoothly.

[0004] There are two main ways to support rails along the slope in the existing technology. First, on-site personnel use wooden beams, round steel or steel plates with a certain height to support the bottom of the rails. This method is more arbitrary, the size of the support tools varies, the structural strength is unreliable, and it is difficult to achieve the horizontal and vertical limit fixation of the rails in the lifted state. There are safety hazards and the risk of the welding machine falling off the track and overturning; second, the pads of the existing technology use the sleeper bolts as the fixed reference to achieve the horizontal and vertical locking of the pads on the bearing grooves. The pads of this technology are only suitable for ballasted track line operations. Their size specifications are set based on the anchor bolts on the concrete sleeper bearing grooves, and are not suitable for high-speed railway operations in the form of ballastless track plates.

[0005] Therefore, it is necessary to solve the above technical problems. Summary of the invention

[0006] In view of this, the purpose of the present invention is to provide a ballastless rail mobile welding climbing pad and a use method to achieve lateral and longitudinal limiting and fixing of the slope supporting working rail during flash welding operations.

[0007] Based on the above purpose, the present invention provides a ballastless rail movable welding climbing pad, comprising an upper body, a lower body, a height piece, a first rail bottom angle pressure block, and a second rail bottom angle pressure block, wherein: the upper body comprises an upper mounting plate and a first fixed block and a second fixed block which are relatively installed on two outer sides of the upper mounting plate; the lower body comprises a lower mounting plate which is arranged parallel to the upper mounting plate; the height piece comprises a first height plate and a second height plate, the first height plate and the second height plate are relatively installed between the upper mounting plate and the lower mounting plate, and the length direction of the first height plate and the second height plate is perpendicular to the length direction of the rail; the first rail bottom angle pressure block and the second rail bottom angle pressure block are respectively located on both sides of the upper mounting plate The top surface of the first rail bottom angle pressure block is provided with a first mounting hole, the top surface of the first fixing block is provided with a second mounting hole, the first line fastener bolt on the rail support platform is sequentially passed through the first mounting hole and the second mounting hole and then threadedly installed on the rail support platform, one side of the first rail bottom angle pressure block is provided with a first limiting inclined surface for fitting the inclined surface on one side of the rail bottom angle of the rail; the top surface of the second rail bottom angle pressure block is provided with a third mounting hole, the top surface of the second fixing block is provided with a fourth mounting hole, the second line fastener bolt on the rail support platform is sequentially passed through the third mounting hole and the fourth mounting hole and then threadedly installed on the rail support platform, and one side of the second rail bottom angle pressure block is provided with a second limiting inclined surface for fitting the inclined surface on the other side of the rail bottom angle of the rail.

[0008] Optionally, the top surface of the first height plate is mounted on the bottom surface of the upper mounting plate, the bottom surface of the first height plate is mounted on the top surface of the lower mounting plate, the top surface of the second height plate is mounted on the bottom surface of the upper mounting plate, and the bottom surface of the second height plate is mounted on the top surface of the lower mounting plate.

[0009] Optionally, the height member further includes a first connecting plate, and two ends of the first connecting plate are respectively installed between the first height plate and the second height plate.

[0010] Optionally, a first limiting boss and a second limiting boss are respectively provided on both sides of the upper mounting plate along the length direction of the upper mounting plate, and a distance between the first limiting boss and the second limiting boss is greater than a width of the rail.

[0011] Optionally, it also includes a first flexible connector and a second flexible connector, one end of the first flexible connector is installed on the first rail bottom angle pressure block, and the other end of the first flexible connector is installed on the first fixed block; one end of the second flexible connector is installed on the second rail bottom angle pressure block, and the other end of the second flexible connector is installed on the second fixed block.

[0012] Optionally, a first fixed lifting ring and a second fixed lifting ring are respectively provided at both ends of the first flexible connector, the first fixed lifting ring is threadedly installed on the first rail bottom angle pressure block, and the second fixed lifting ring is threadedly installed on the first fixed block.

[0013] Optionally, a third fixed lifting ring and a fourth fixed lifting ring are respectively provided at both ends of the second flexible connector, the third fixed lifting ring is threadedly installed on the second rail bottom angle pressure block, and the fourth fixed lifting ring is threadedly installed on the second fixed block.

[0014] Optionally, a first weight-reducing through hole is formed on the top surface of the upper body, and a second weight-reducing through hole is formed on the top surface of the lower body.

[0015] Optionally, it also includes multiple first connecting bolts and multiple second connecting bolts, the top surface of the upper mounting plate is provided with multiple first through holes, the bottom surface of the lower mounting plate is provided with multiple second through holes, the top surface of the first height plate is provided with multiple first threaded through holes, and the top surface of the second height plate is provided with multiple second threaded through holes, the multiple first connecting bolts, the multiple second connecting bolts, the multiple first through holes, the multiple second through holes, the multiple first threaded through holes, and the multiple second threaded through holes are all arranged one by one, and the multiple first connecting bolts pass through the multiple first through holes one by one and are threadedly installed in the multiple first threaded through holes, and the multiple second connecting bolts pass through the multiple second through holes one by one and are threadedly installed in the multiple second threaded through holes.

[0016] Based on the same inventive concept, the present invention also provides a method for using a ballastless rail mobile welded climbing pad, using any of the above-mentioned ballastless rail mobile welded climbing pads to replace rails in a straight section of a ballastless track or to replace a curved rail in a curved section, comprising the following steps:

[0017] Step 1: Investigate the line conditions of the construction section, clarify the track type, fastener type, and determine the required support height;

[0018] Step 2: Determine the height of the height member according to the height of the support pad required. Before construction, first install the first height plate and the second height plate between the upper mounting plate and the lower mounting plate in a relatively arranged manner, and place the first rail bottom angle pressing block and the second rail bottom angle pressing block on both sides of the upper body, respectively, and place them on the top surfaces of the first fixing block and the second fixing block, respectively;

[0019] Step 3: Remove the original fasteners and spring bars of the supported rail, lift the supported rail in the vertical direction, and place the corresponding ballastless rail mobile welded climbing pad on the ballastless track support platform to ensure the correct installation direction;

[0020] Step 4: put the supported rail in place, ensure that the rail bottom of the supported rail is on the top surface of the upper mounting plate, fit the first limiting inclined surface on the first rail bottom angle pressure block and the second limiting inclined surface on the second rail bottom angle pressure block on the inclined surfaces on both sides of the rail bottom angle of the supported rail respectively, pass the original first line fastener bolt of the line through the first mounting hole and the second mounting hole in sequence, and then thread it on the rail support platform, pass the original second line fastener bolt of the line through the third mounting hole and the fourth mounting hole in sequence, and then thread it on the rail support platform, use an electric hand tool to tighten the first line fastener bolt and the second line fastener bolt, and the double locking mechanism of the ballastless rail mobile welding climbing pad and the ballastless track plate, and the rail and the ballastless rail mobile welding climbing pad can be realized;

[0021] Step 5. At this time, the mobile welding equipment for the rail moves to the support area to carry out the rail welding operation. After the welding operation is completed, the welding equipment leaves the mobile welding climbing pad section of the ballastless rail. At this time, the mobile welding climbing pad of the ballastless rail is removed, and the original first line fastener bolts and the second line fastener bolts of the line are removed using electric hand tools, and the first rail bottom angle pressure block and the second rail bottom angle pressure block are removed. The supported rail is lifted, and the mobile welding climbing pad of the ballastless rail is moved out of the rail support platform, and the supported rail is placed in the line rail support platform, and the supported rail is locked using the original elastic bars, the first line fastener bolts, and the second line fastener bolts of the line.

[0022] Based on the same inventive concept, the present invention also provides a method for using a ballastless rail mobile welded climbing pad, using any of the above-mentioned ballastless rail mobile welded climbing pads to replace the curved rail in the curved section of the ballastless track line, comprising the following steps:

[0023] Step 1: Investigate the line conditions of the construction section, clarify the track plate type, fastener type, and determine the required support height;

[0024] Step 2: Determine the height of the height member according to the height of the support pad required. Before construction, first install the first height plate and the second height plate between the upper mounting plate and the lower mounting plate in a relatively arranged manner, and place the first rail bottom angle pressing block and the second rail bottom angle pressing block on both sides of the upper body, respectively, and place them on the top surfaces of the first fixing block and the second fixing block, respectively;

[0025] Step 3: On the side of the curved upper rail, remove the original fasteners and spring bars of the curved upper rail, lift the curved upper rail in the vertical direction, and place the corresponding first ballastless rail mobile welded climbing pad on the ballastless track support platform to ensure the correct installation direction;

[0026] Step 4: put the curved upper rail in place, ensure that the rail bottom of the curved upper rail is on the top surface of the upper mounting plate, fit the first limiting inclined surface on the first rail bottom angle pressure block and the second limiting inclined surface on the second rail bottom angle pressure block to the inclined surfaces on both sides of the rail bottom angle of the curved upper rail respectively, pass the original first line fastener bolt of the line through the first mounting hole and the second mounting hole in sequence, and then thread it on the rail support platform, pass the original second line fastener bolt of the line through the third mounting hole and the fourth mounting hole in sequence, and then thread it on the rail support platform, use an electric hand tool to tighten the first line fastener bolt and the second line fastener bolt, and the double locking mechanism of the first ballastless rail mobile welded climbing pad and the ballastless track plate, and the rail and the first ballastless rail mobile welded climbing pad can be realized;

[0027] Step 5. At this time, the mobile rail welding equipment moves to the support area to carry out rail welding operations. After the welding operation is completed, the welding equipment leaves the support section. On the side of the curved upper rail, use an electric hand tool to remove the original first line fastener bolts and the second line fastener bolts of the line, remove the first rail bottom angle block and the second rail bottom angle block, lift the curved upper rail, move the first ballastless rail mobile welding climbing pad out of the rail support platform, and place the curved upper rail into the line rail support platform. Use the original spring bars and the first line fastener bolts and the second line fastener bolts of the line to lock the curved upper rail.

[0028] Optionally, the following steps are also included: Step 6, on the side of the curved lower rail, remove the original fasteners and spring bars of the curved lower rail, lift the curved lower rail in the vertical direction, and place the corresponding second ballastless rail mobile welded climbing pad on the ballastless track support platform to ensure that the installation direction is correct; Step 7, put the curved lower rail in place to ensure that the bottom of the curved lower rail is on the top surface of the upper mounting plate, and fit the first limiting inclined surface on the first rail bottom angle pressure block and the second limiting inclined surface of the second rail bottom angle pressure block on the two side inclined surfaces of the rail bottom angle of the curved lower rail respectively, pass the original first line fastener bolts of the line through the first mounting hole and the second mounting hole in sequence, and then thread them on the support platform, pass the original second line fastener bolts of the line through the third mounting hole and the fourth mounting hole in sequence, and then thread them on the support platform, and use an electric Tighten the first line fastener bolt and the second line fastener bolt with a hand tool to realize the double locking mechanism of the second ballastless rail mobile welding climbing pad and the ballastless track plate, the rail and the second ballastless rail mobile welding climbing pad; Step 8, at this time, the rail mobile welding equipment moves to the support area to carry out the rail welding operation. After the welding operation is completed, the welding equipment leaves the support section, and on the side of the lower curved rail, use an electric hand tool to remove the original first line fastener bolt and the second line fastener bolt of the line, remove the first rail bottom angle pressure block and the second rail bottom angle pressure block, lift the lower curved rail, move the second ballastless rail mobile welding climbing pad out of the rail support platform, and place the lower curved rail into the line rail support platform, and use the original elastic bars and the first line fastener bolts and the second line fastener bolts of the line to lock the lower curved rail.

[0029] The ballastless rail movable welding climbing pad and the use method provided by the present invention include an upper main body, a lower main body, a height piece, a first rail bottom angle pressing block, and a second rail bottom angle pressing block. First, the first height plate and the second height plate are relatively installed between the upper mounting plate and the lower mounting plate, and the first rail bottom angle pressing block and the second rail bottom angle pressing block are respectively located on both sides of the upper main body and are respectively placed on the top surfaces of the first fixing block and the second fixing block; then, the first line fastener bolt on the rail support platform is sequentially passed through the first mounting hole and the second mounting hole and then threadedly installed on the rail support platform, and the second line fastener bolt on the rail support platform is sequentially passed through the third mounting hole and the fourth mounting hole and then threadedly installed on the rail support platform On; finally, place the lower body in the rail support platform of the ballastless track plate, so that the ballastless rail mobile welding climbing pad is installed on the existing rail support platform; loosen the first line fastener bolt and the second line fastener bolt, so that the first limiting inclined surface and the second limiting inclined surface are set back to back, place the rail on the top surface of the upper mounting plate, and then set the first limiting inclined surface and the second limiting inclined surface relatively, tighten the first line fastener bolt and the second line fastener bolt, so that the first limiting inclined surface is attached to the inclined surface on one side of the rail bottom angle of the rail, and the second limiting inclined surface is attached to the inclined surface on the other side of the rail bottom angle of the rail, thereby limiting the rail bottom angle of the rail, and realizing the lateral and longitudinal limiting fixation of the slope support operation rail during the flash welding operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, which will help to understand the objects and advantages of the present invention, wherein:

[0031] Figure 1 It is a structural schematic diagram of a movable welded climbing pad for a ballastless rail according to an embodiment of the present invention;

[0032] Figure 2 An exploded view of a movable welded climbing pad for a ballastless rail according to an embodiment of the present invention;

[0033] Figure 3 It is a schematic structural diagram of a middle height component of a movable welded climbing pad for a ballastless rail according to an embodiment of the present invention;

[0034] Figure 4 It is a schematic diagram of the installation between the movable welded climbing pad of the ballastless rail and the rail support platform and the rail according to one embodiment of the present invention;

[0035] Figure 5 It is a schematic diagram of a method for using a movable welded climbing pad for a ballastless rail according to an embodiment of the present invention when a line has superelevation curve;

[0036] Figure 6 It is a schematic diagram of a method for using a ballastless rail movable welding climbing pad in an embodiment of the present invention, when the ballastless rail movable welding climbing pad is supported only on the curved upper rail;

[0037] Figure 7 It is a schematic diagram of a method for using a ballastless rail movable welding climbing pad in accordance with an embodiment of the present invention, in which the ballastless rail movable welding climbing pad is supported on both the upper curved rail and the lower curved rail at the same time.

[0038] Description of reference numerals:

[0039] 1: upper body; 2: lower body; 3: height piece; 4: first rail bottom angle pressure block; 5: second rail bottom angle pressure block; 6: upper mounting plate; 7: first fixing block; 8: second fixing block; 9: lower mounting plate; 10: first height plate; 11: second height plate; 12: first mounting hole; 13: second mounting hole; 14: first line fastener bolt; 15: first limiting inclined plane; 16: third mounting hole; 17: fourth mounting hole; 18: second limiting inclined plane; 19: first connecting plate; 20: first limiting platform; 21: second limiting platform; 22: first flexible connector; 23: second flexible connector; 24: first fixing ring; 25: second fixing ring; 26: third fixing ring; 27: fourth fixing ring; 28: first lightening hole; 29: second lightening hole; 30: first through hole; 31: second through hole; 32: first threaded through hole; 33: second threaded through hole; 34: rail; 35: rail support platform; 36: ballastless track plate; 37: upper curved rail; 38: lower curved rail; 39: first ballastless rail movable welding climbing pad; 40: second ballastless rail movable welding climbing pad; H1: height difference between upper curved rail and lower curved rail; H2: height difference between upper curved rail and lower curved rail after only supporting the upper curved rail; h1: height of the first ballastless rail movable welding climbing pad; h2: height of the second ballastless rail movable welding climbing pad. DETAILED DESCRIPTION

[0040] The present invention is described in detail below in conjunction with the embodiments. The same components are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0041] like Figures 1 to 4As shown, the ballastless rail movable welding climbing pad provided by the present invention comprises an upper body 1, a lower body 2, a height member 3, a first rail bottom angle pressing block 4, and a second rail bottom angle pressing block 5, wherein: the upper body 1 comprises an upper mounting plate 6 and a first fixing block 7 and a second fixing block 8 which are relatively installed on both outer sides of the upper mounting plate 6; the lower body 2 comprises a lower mounting plate 9 which is arranged parallel to the upper mounting plate 6; the height member 3 comprises a first height plate 10 and a second height plate 11, the first height plate 10 and the second height plate 11 are relatively installed between the upper mounting plate 6 and the lower mounting plate 9, and the length direction of the first height plate 10 and the second height plate 11 is perpendicular to the length direction of the rail 34; the first rail bottom angle pressing block 4 and the second rail bottom angle pressing block 5 are respectively located on both sides of the upper mounting plate 6, and ... A first mounting hole 12 is provided on the top surface of block 4, a second mounting hole 13 is provided on the top surface of the first fixing block 7, a first line fastener bolt 14 on the rail support platform 35 is threadedly installed on the rail support platform 35 after passing through the first mounting hole 12 and the second mounting hole 13 in sequence, and a first limiting inclined surface 15 for fitting the inclined surface of one side of the rail bottom angle of the steel rail 34 is provided on one side of the first rail bottom angle pressure block 4; a third mounting hole 16 is provided on the top surface of the second rail bottom angle pressure block 5, a fourth mounting hole 17 is provided on the top surface of the second fixing block 8, the second line fastener bolt on the rail support platform 35 is threadedly installed on the rail support platform 35 after passing through the third mounting hole 16 and the fourth mounting hole 17 in sequence, and a second limiting inclined surface 18 for fitting the inclined surface of the other side of the rail bottom angle of the steel rail 34 is provided on one side of the second rail bottom angle pressure block 5.

[0042] The ballastless rail movable welding climbing pad provided by the present invention comprises an upper body 1, a lower body 2, a height member 3, a first rail bottom angle pressing block 4, and a second rail bottom angle pressing block 5. First, the first height plate 10 and the second height plate 11 are relatively installed between the upper mounting plate 6 and the lower mounting plate 9, and the first rail bottom angle pressing block 4 and the second rail bottom angle pressing block 5 are respectively located on both sides of the upper body 1, and are respectively placed on the top surfaces of the first fixing block 7 and the second fixing block 8; then, the first line fastener bolt 14 on the rail support platform 35 is sequentially passed through the first mounting hole 12 and the second mounting hole 13 and then threadedly installed on the rail support platform 35, and the second line fastener bolt on the rail support platform 35 is sequentially passed through the third mounting hole 16 and the fourth mounting hole 17 and then threadedly installed on the rail support platform 35 ; Finally, place the lower body 2 in the rail support platform 35 of the ballastless track plate 36, so that the rail mobile welding climbing pad is installed on the existing rail support platform 35; loosen the first line fastener bolt 14 and the second line fastener bolt, so that the first limiting inclined surface 15 and the second limiting inclined surface 18 are set back to back, and the rail 34 is placed on the top surface of the upper mounting plate 6, and then the first limiting inclined surface 15 and the second limiting inclined surface 18 are set relatively, and the first line fastener bolt 14 and the second line fastener bolt are tightened so that the first limiting inclined surface 15 is attached to the inclined surface on one side of the bottom angle of the rail 34, and the second limiting inclined surface 18 is attached to the inclined surface on the other side of the bottom angle of the rail 34, thereby limiting the bottom angle of the rail 34, and realizing the lateral and longitudinal limiting and fixing of the slope support operation rail 34 during the flash welding operation.

[0043] It should be noted that the first line fastener bolts 14, the second line fastener bolts, the rail support 35, the ballastless track plate 36, and the ballastless track rails are all existing components on site, and the rail support 35 is arranged on the ballastless track plate 36; when the first limiting slope 15 and the second limiting slope 18 are arranged back to back, sufficient installation space can be left for the rail 34, and when the first limiting slope 15 and the second limiting slope 18 are arranged relative to each other, the rail 34 can be limited.

[0044] In one embodiment of the present invention, the top surface of the first height plate 10 is mounted on the bottom surface of the upper mounting plate 6, the bottom surface of the first height plate 10 is mounted on the top surface of the lower mounting plate 9, the top surface of the second height plate 11 is mounted on the bottom surface of the upper mounting plate 6, the bottom surface of the second height plate 11 is mounted on the top surface of the lower mounting plate 9, and the first height plate 10 and the second height plate 11 are both mounted between the upper mounting plate 6 and the lower mounting plate 9, thereby increasing the structural stability of the ballastless rail movable welded climbing pad.

[0045] like Figure 3As shown, the height member 3 further includes a first connecting plate 19, and both ends of the first connecting plate 19 are respectively installed between the first height plate 10 and the second height plate 11. In this embodiment, the first connecting plate 19 increases the connection strength between the first height plate 10 and the second height plate 11, thereby improving the structural stability of the ballastless rail mobile welded climbing pad.

[0046] like Figure 1 and Figure 2 As shown, the upper mounting plate 6 is provided with a first limiting boss 20 and a second limiting boss 21 on both sides along the length direction of the upper mounting plate 6, and the distance between the first limiting boss 20 and the second limiting boss 21 is greater than the width of the rail 34. It should be noted that the length direction of the upper mounting plate 6 is perpendicular to the length direction of the rail 34. In this embodiment, when the rail 34 is mounted on the top surface of the upper mounting plate 6, the first limiting boss 20 and the second limiting boss 21 can limit the rail 34 in the horizontal direction, thereby improving the convenience of using the ballastless rail mobile welding climbing pad.

[0047] like Figure 1 and Figure 2 As shown, it also includes a first flexible connector 22 and a second flexible connector 23, one end of the first flexible connector 22 is mounted on the first rail bottom angle block 4, and the other end of the first flexible connector 22 is mounted on the first fixed block 7; one end of the second flexible connector 23 is mounted on the second rail bottom angle block 5, and the other end of the second flexible connector 23 is mounted on the second fixed block 8. In this embodiment, the first flexible connector 22 can prevent the first rail bottom angle block 4 from being lost, and the second flexible connector 23 can prevent the second rail bottom angle block 5 from being lost, thereby improving the convenience of using the ballastless rail mobile welding climbing pad.

[0048] like Figure 1 and Figure 2 As shown, the first two ends of the first flexible connector 22 are respectively provided with a first fixed lifting ring 24 and a second fixed lifting ring 25, the first fixed lifting ring 24 is threadedly mounted on the first rail bottom angle pressing block 4, and the second fixed lifting ring 25 is threadedly mounted on the first fixed block 7. In this embodiment, the first flexible connector 22 is threadedly mounted on the first rail bottom angle pressing block 4 and the first fixed block 7 through the first fixed lifting ring 24 and the second fixed lifting ring 25, respectively, which improves the convenience of using the ballastless rail mobile welding climbing pad.

[0049] like Figure 1 and Figure 2As shown, the second flexible connector 23 is provided with a third fixed lifting ring 26 and a fourth fixed lifting ring 27 at both ends, the third fixed lifting ring 26 is threadedly mounted on the second rail bottom angle block 5, and the fourth fixed lifting ring 27 is threadedly mounted on the second fixed block 8. In this embodiment, the second flexible connector 23 is threadedly mounted on the second rail bottom angle block 5 and the second fixed block 8 through the third fixed lifting ring 26 and the fourth fixed lifting ring 27, respectively, which improves the convenience of using the ballastless rail mobile welding climbing pad.

[0050] like Figure 1 and Figure 2 As shown, the top surface of the upper body 1 is provided with a first weight-reducing through hole 28, and the top surface of the lower body 2 is provided with a second weight-reducing through hole 29. In this embodiment, specifically, the first weight-reducing through hole 28 reduces the weight of the upper body 1, and the second weight-reducing through hole 29 reduces the weight of the lower body 2, thereby reducing the weight of the ballastless rail mobile welding climbing pad, and reducing the production cost of the ballastless rail mobile welding climbing pad. On the other hand, the opening size of the weight-reducing through hole can be ergonomically designed, so that the operator can pick up the ballastless rail mobile welding climbing pad by hand.

[0051] like Figure 1 and Figure 2 As shown, it also includes multiple first connecting bolts and multiple second connecting bolts. The top surface of the upper mounting plate 6 is provided with multiple first through holes 30, and the bottom surface of the lower mounting plate 9 is provided with multiple second through holes 31. The top surface of the first height plate 10 is provided with multiple first threaded through holes 32, and the top surface of the second height plate 11 is provided with multiple second threaded through holes 33. The multiple first connecting bolts, the multiple second connecting bolts, the multiple first through holes 30, the multiple second through holes 31, the multiple first threaded through holes 32, and the multiple second threaded through holes 33 are all arranged in a one-to-one correspondence. The multiple first connecting bolts pass through the multiple first through holes 30 one by one and are then threadedly installed in the multiple first threaded through holes 32. The multiple second connecting bolts pass through the multiple second through holes 31 one by one and are then threadedly installed in the multiple second threaded through holes 33. In the present embodiment, specifically, the first through hole 30 can be a countersunk hole, and the second through hole 31 can be a countersunk hole. A plurality of first connecting bolts sequentially pass through a plurality of first through holes 30 and a plurality of first threaded through holes 32 of the upper mounting plate 6 and are threadedly installed in the plurality of first threaded through holes 32. A plurality of second connecting bolts sequentially pass through a plurality of second through holes 31 and a plurality of second threaded through holes 33 of the lower mounting plate 9 and are threadedly installed in the plurality of second threaded through holes 33, thereby improving the convenience of installation or disassembly of the mobile welded climbing pad for the ballastless rail.

[0052] like Figures 1 to 7As shown, based on the same inventive concept, the present invention also provides a method for using a ballastless rail mobile welded climbing pad, using the ballastless rail mobile welded climbing pad described in any of the above embodiments to replace rails in a straight section of a ballastless track or to replace a curved rail in a curved section, comprising the following steps:

[0053] Step 1: Investigate the line conditions of the construction section, clarify the track plate type, fastener type, and determine the required support height;

[0054] Step 2: Determine the height of the height member 3 according to the height of the support pad required. Before construction, first install the first height plate 10 and the second height plate 11 between the upper mounting plate 6 and the lower mounting plate 9 in a relatively arranged manner. Place the first rail bottom angle pressing block 4 and the second rail bottom angle pressing block 5 on both sides of the upper body 1, and place them on the top surfaces of the first fixing block 7 and the second fixing block 8, respectively.

[0055] Step 3: Remove the original fasteners and spring bars of the supported rail, lift the supported rail in the vertical direction, and place the corresponding ballastless rail mobile welded climbing pad on the ballastless track support platform 35 to ensure the correct installation direction;

[0056] Step 4: put the supported rail in place, ensure that the rail bottom of the supported rail is on the top surface of the upper mounting plate 6, fit the first limiting inclined surface 15 on the first rail bottom angle pressure block 4 and the second limiting inclined surface 18 on the second rail bottom angle pressure block 5 on the inclined surfaces on both sides of the rail bottom angle of the supported rail respectively, pass the original first line fastener bolt 14 of the line through the first mounting hole 12 and the second mounting hole 13 in sequence, and then thread it on the rail support platform 35, pass the original second line fastener bolt of the line through the third mounting hole 16 and the fourth mounting hole 14 in sequence, and then thread it on the rail support platform 35, use an electric hand tool to tighten the first line fastener bolt 14 and the second line fastener bolt, and then realize the double locking mechanism of the ballastless rail mobile welding climbing pad and the ballastless track plate 36, and the rail and the ballastless rail mobile welding climbing pad;

[0057] Step 5. At this time, the mobile welding equipment for the rail moves to the support area to carry out the rail welding operation. After the welding operation is completed, the welding equipment leaves the mobile welding climbing pad section of the ballastless rail. At this time, the mobile welding climbing pad of the ballastless rail is removed, and the original first line fastener bolts 14 and the second line fastener bolts of the line are removed using electric hand tools, and the first rail bottom angle pressure block 4 and the second rail bottom angle pressure block 5 are removed. The supported rail is lifted, and the mobile welding climbing pad of the ballastless rail is moved out of the rail support platform, and the supported rail is placed in the line rail support platform, and the supported rail is locked using the original elastic bars, the first line fastener bolts 14, and the second line fastener bolts of the line.

[0058] It should be noted that: when construction work is carried out in the curved section, due to the superelevation of the curve between the two rails, the higher side is generally called the upper rail and the lower side is called the lower rail. When the height difference between the upper rail and the lower rail and the height of the first ballastless rail mobile welding climbing pad 39 is less than or equal to 120mm, the above operation steps are used for support, which will not affect the extension and retraction operation of the welding machine head of the rail mobile welding equipment, and can be used in conjunction with the gauge pull rod to reduce the risk of the rail mobile welding equipment falling off the track and overturning.

[0059] The method for using the movable welding climbing pad for ballastless rail provided by the present invention comprises an upper main body 1, a lower main body 2, a height member 3, a first rail bottom angle pressing block 4, and a second rail bottom angle pressing block 5. First, the first height plate 10 and the second height plate 11 are relatively installed between the upper mounting plate 6 and the lower mounting plate 9, and the first rail bottom angle pressing block 4 and the second rail bottom angle pressing block 5 are respectively located on both sides of the upper main body 1, and are respectively placed on the top surfaces of the first fixing block 7 and the second fixing block 8; then, the first line fastener bolt 14 on the rail support platform 35 is sequentially passed through the first mounting hole 12 and the second mounting hole 13 and then threadedly installed on the rail support platform 35, and the second line fastener bolt on the rail support platform 35 is sequentially passed through the third mounting hole 16 and the fourth mounting hole 17 and then threadedly installed on the rail support platform 35 On; finally, place the lower body 2 in the rail support platform 35 of the ballastless track plate 36, so that the ballastless rail mobile welding climbing pad is installed on the existing rail support platform 35; loosen the first line fastener bolt 14 and the second line fastener bolt, so that the first limiting inclined surface 15 and the second limiting inclined surface 18 are set back to back, and the rail 34 is placed on the top surface of the upper mounting plate 6, and then the first limiting inclined surface 15 and the second limiting inclined surface 18 are set relatively, and the first line fastener bolt 14 and the second line fastener bolt are tightened to make the first limiting inclined surface 15 fit on the inclined surface on one side of the rail bottom angle of the rail 34, and the second limiting inclined surface 18 fit on the inclined surface on the other side of the rail bottom angle of the rail 34, thereby limiting the rail bottom angle of the rail 34, and realizing the lateral and longitudinal limiting and fixing of the rail 34 with the slope support pad during the flash welding operation.

[0060] like Figures 1 to 7 As shown, based on the same inventive concept, the present invention also provides a method for using a ballastless rail movable welded climbing pad, using the ballastless rail movable welded climbing pad described in any of the above embodiments to replace the curved rail in the curved section of the ballastless track line, comprising the following steps:

[0061] Step 1: Investigate the line conditions of the construction section, clarify the track plate type, fastener type, and determine the required support height;

[0062] Step 2: Determine the height of the height member 3 according to the height of the support pad required. Before construction, first install the first height plate 10 and the second height plate 11 between the upper mounting plate 6 and the lower mounting plate 9 in a relatively arranged manner, and place the first rail bottom angle pressing block 4 and the second rail bottom angle pressing block 5 on both sides of the upper body 1, and place them on the top surfaces of the first fixing block 7 and the second fixing block 8, respectively.

[0063] Step 3: On the side of the curved upper rail, remove the original fasteners and spring bars of the curved upper rail, lift the curved upper rail in the vertical direction, and place the corresponding first ballastless rail mobile welded climbing pad 39 on the ballastless track support platform to ensure the correct installation direction;

[0064] Step 4, put the curved upper rail in place, ensure that the rail bottom of the curved upper rail is on the top surface of the upper mounting plate 6, fit the first limiting inclined surface 15 on the first rail bottom angle pressing block 4 and the second limiting inclined surface 18 on the second rail bottom angle pressing block 5 on both sides of the inclined surfaces of the rail bottom angle of the curved upper rail respectively, pass the original first line fastener bolt 14 of the line through the first mounting hole 12 and the second mounting hole 13 in sequence, and then thread it on the rail support platform 35, pass the original second line fastener bolt of the line through the third mounting hole 16 and the fourth mounting hole 17 in sequence, and then thread it on the rail support platform 35, use an electric hand tool to tighten the first line fastener bolt 14 and the second line fastener bolt, and then realize the double locking mechanism of the first ballastless rail movable welding climbing pad 39 and the ballastless track plate 34, and the rail and the first ballastless rail movable welding climbing pad 39;

[0065] Step 5. At this time, the mobile rail welding equipment moves to the support area to carry out rail welding operations. After the welding operation is completed, the welding equipment leaves the support section. On the side of the curved upper rail, use an electric hand tool to remove the original first line fastener bolts 14 and the second line fastener bolts of the line, remove the first rail bottom angle pressure block 4 and the second rail bottom angle pressure block 5, lift the curved upper rail, move the first ballastless rail mobile welding climbing pad 39 out of the rail support platform, and place the curved upper rail into the line rail support platform. Use the original elastic bars and the first line fastener bolts 14 and the second line fastener bolts of the line to lock the curved upper rail.

[0066] It should be noted that: when the height difference between the upper curved rail and the lower curved rail and the sum of the heights of the first ballastless rail mobile welding climbing pad 39 is less than or equal to 120 mm, the above operating steps are used for support, which will not affect the extension and retraction operation of the welding machine head of the rail mobile welding equipment. When used in conjunction with the gauge pull rod, the risk of the rail mobile welding equipment derailing and overturning can be reduced.

[0067] In one embodiment of the present invention, the following steps are also included: Step 6, on the side of the curved lower rail, the original fasteners and spring bars of the curved lower rail are removed, the curved lower rail is lifted in the vertical direction, and the corresponding second ballastless rail mobile welded climbing pad is placed on the ballastless track support rail platform to ensure that the installation direction is correct; Step 7, the curved lower rail is placed in place to ensure that the bottom of the curved lower rail is on the top surface of the upper mounting plate 6, and the first limiting inclined surface 15 on the first rail bottom angle pressing block 4 and the second limiting inclined surface 18 on the second rail bottom angle pressing block 5 are respectively attached to the inclined surfaces on both sides of the rail bottom angle of the curved lower rail, the original first line fastener bolts 14 of the line are sequentially passed through the first mounting hole 12 and the second mounting hole 13, and then threadedly installed on the support rail platform 35, and the original second line fastener bolts of the line are sequentially passed through the third mounting hole 16 and the fourth mounting hole 17, and then threadedly installed on the support rail platform 35 , use an electric hand tool to tighten the first line fastener bolt 14 and the second line fastener bolt to realize the double locking mechanism of the second ballastless rail mobile welding climbing pad 40 and the ballastless track plate 34, the rail and the second ballastless rail mobile welding climbing pad 40; Step 8, at this time, the rail mobile welding equipment moves to the support area to perform rail welding operations. After the welding operation is completed, the welding equipment leaves the support section. On the side of the lower curved rail, use an electric hand tool to remove the original first line fastener bolt 14 and the second line fastener bolt of the line, remove the first rail bottom angle pressure block 4 and the second rail bottom angle pressure block 5, lift the lower curved rail, move the second ballastless rail mobile welding climbing pad 40 out of the rail support platform, and place the lower curved rail into the line rail support platform. Use the original elastic bars and the first line fastener bolts 14 and the second line fastener bolts of the line to lock the lower curved rail.

[0068] It should be noted that: Figure 5 When there is superelevation on the curve, the height difference between the original upper rail and lower rail is H1. Figure 6 As shown in the figure, when the mobile welding operation is performed on the curved upper rail, the first ballastless rail mobile welding climbing pad 39 is used to support the curved upper rail 37 along the slope. After the support, the height difference between the rail heads of the curved upper rail 37 and the curved lower rail 38 is H2, H2=H1+h1, h1 is the height of the first ballastless rail mobile welding climbing pad 39, when the value of H2 is greater than 120mm, the extension and retraction of the welding machine head of the rail mobile welding equipment is limited, which is not conducive to the construction operation; Figure 7As shown, when the mobile welding operation is performed on the curved upper rail 37, the first ballastless rail mobile welding climbing pad 39 is used to support the curved upper rail 37, and the second ballastless rail mobile welding climbing pad 40 is used to support the curved lower rail 38 along the slope. After the support, the height difference between the rail heads of the curved upper rail 37 and the curved lower rail 38 is H3, H3=H1+h1-h2, h2 is the height of the second ballastless rail mobile welding climbing pad 40, and by reasonably selecting the height of the second ballastless rail mobile welding climbing pad 40, the value of H3 is less than or equal to 120 mm, which can effectively avoid the limitation of the extension and retraction of the welding machine head of the rail mobile welding equipment, which is conducive to the construction operation.

[0069] The ballastless rail movable welding climbing pad and the use method provided by the present invention include an upper body 1, a lower body 2, a height member 3, a first rail bottom angle pressing block 4, and a second rail bottom angle pressing block 5. First, the first height plate 10 and the second height plate 11 are relatively installed between the upper mounting plate 6 and the lower mounting plate 9, and the first rail bottom angle pressing block 4 and the second rail bottom angle pressing block 5 are respectively located on both sides of the upper body 1, and are respectively placed on the top surfaces of the first fixing block 7 and the second fixing block 8; then, the first line fastener bolt 14 on the rail support platform 35 is sequentially passed through the first mounting hole 12 and the second mounting hole 13 and then threadedly installed on the rail support platform 35, and the second line fastener bolt on the rail support platform 35 is sequentially passed through the third mounting hole 16 and the fourth mounting hole 17 and then threadedly installed on the rail support platform 35 On; finally, place the lower body 2 in the rail support platform 35 of the ballastless track plate 36, so that the ballastless rail mobile welding climbing pad is installed on the existing rail support platform 35; loosen the first line fastener bolt 14 and the second line fastener bolt, so that the first limiting inclined surface 15 and the second limiting inclined surface 18 are set back to back, and the rail 34 is placed on the top surface of the upper mounting plate 6, and then the first limiting inclined surface 15 and the second limiting inclined surface 18 are set relatively, and the first line fastener bolt 14 and the second line fastener bolt are tightened to make the first limiting inclined surface 15 fit on the inclined surface on one side of the rail bottom angle of the rail 34, and the second limiting inclined surface 18 fit on the inclined surface on the other side of the rail bottom angle of the rail 34, thereby limiting the rail bottom angle of the rail 34, and realizing the lateral and longitudinal limiting and fixing of the rail 34 with the slope support pad during the flash welding operation.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A ballastless rail movable welding climbing pad, characterized in that: It includes an upper body, a lower body, a height piece, a first rail bottom angle pressing block, and a second rail bottom angle pressing block, wherein: The upper body comprises an upper mounting plate and a first fixing block and a second fixing block which are relatively mounted on two outer sides of the upper mounting plate; The lower body comprises a lower mounting plate arranged parallel to the upper mounting plate; The height member comprises a first height plate and a second height plate, the first height plate and the second height plate are installed between the upper mounting plate and the lower mounting plate in an opposite manner, and the length direction of the first height plate and the second height plate is perpendicular to the length direction of the rail; The first rail bottom angle pressing block and the second rail bottom angle pressing block are respectively located on both sides of the upper mounting plate, the top surface of the first rail bottom angle pressing block is provided with a first mounting hole, the top surface of the first fixing block is provided with a second mounting hole, the first line fastener bolt on the rail support platform is sequentially passed through the first mounting hole and the second mounting hole and then threadedly installed on the rail support platform, and one side of the first rail bottom angle pressing block is provided with a first limiting inclined surface for fitting the inclined surface on one side of the rail bottom angle of the rail; A third mounting hole is provided on the top surface of the second rail bottom angle pressure block, and a fourth mounting hole is provided on the top surface of the second fixing block. The second line fastener bolt on the rail support platform passes through the third mounting hole and the fourth mounting hole in sequence and is threadedly installed on the rail support platform. A second limiting inclined surface for fitting the inclined surface on the other side of the rail bottom angle of the rail is provided on one side of the second rail bottom angle pressure block.

2. The ballastless rail movable welding climbing pad according to claim 1, characterized in that: The top surface of the first height plate is mounted on the bottom surface of the upper mounting plate, the bottom surface of the first height plate is mounted on the top surface of the lower mounting plate, the top surface of the second height plate is mounted on the bottom surface of the upper mounting plate, and the bottom surface of the second height plate is mounted on the top surface of the lower mounting plate.

3. The ballastless rail movable welding climbing pad according to claim 1, characterized in that: The height member further includes a first connecting plate, and two ends of the first connecting plate are respectively installed between the first height plate and the second height plate.

4. The ballastless rail movable welding climbing pad according to claim 1, characterized in that: A first limiting boss and a second limiting boss are respectively arranged on both sides of the upper mounting plate along the length direction of the upper mounting plate, and a distance between the first limiting boss and the second limiting boss is greater than a width of the rail.

5. The ballastless rail movable welding climbing pad according to claim 1, characterized in that: It also includes a first flexible connector and a second flexible connector, one end of the first flexible connector is installed on the first rail bottom angle pressure block, and the other end of the first flexible connector is installed on the first fixed block; one end of the second flexible connector is installed on the second rail bottom angle pressure block, and the other end of the second flexible connector is installed on the second fixed block.

6. The ballastless rail movable welding climbing pad according to claim 5, characterized in that: A first fixed lifting ring and a second fixed lifting ring are respectively provided at two ends of the first flexible connector. The first fixed lifting ring is threadedly installed on the first rail bottom angle pressure block, and the second fixed lifting ring is threadedly installed on the first fixed block.

7. The ballastless rail movable welding climbing pad according to claim 5, characterized in that: A third fixed lifting ring and a fourth fixed lifting ring are respectively provided at both ends of the second flexible connector. The third fixed lifting ring is threadedly mounted on the second rail bottom angle pressure block, and the fourth fixed lifting ring is threadedly mounted on the second fixed block.

8. The ballastless rail movable welding climbing pad according to claim 1, characterized in that: A first weight-reducing through hole is formed on the top surface of the upper body, and a second weight-reducing through hole is formed on the top surface of the lower body.

9. The ballastless rail movable welding climbing pad according to claim 2, characterized in that: It also includes multiple first connecting bolts and multiple second connecting bolts, the top surface of the upper mounting plate is provided with multiple first through holes, the bottom surface of the lower mounting plate is provided with multiple second through holes, the top surface of the first height plate is provided with multiple first threaded through holes, the top surface of the second height plate is provided with multiple second threaded through holes, the multiple first connecting bolts, the multiple second connecting bolts, the multiple first through holes, the multiple second through holes, the multiple first threaded through holes, and the multiple second threaded through holes are all arranged one by one, the multiple first connecting bolts pass through the multiple first through holes one by one and then are threadedly installed in the multiple first threaded through holes, and the multiple second connecting bolts pass through the multiple second through holes one by one and then are threadedly installed in the multiple second threaded through holes.

10. A method for using a ballastless rail mobile welding climbing pad, using the ballastless rail mobile welding climbing pad as claimed in any one of claims 1 to 9 to replace rails in a straight section of a ballastless track or replace a curved rail in a curved section, characterized in that: The following steps are involved: Step 1: Investigate the line conditions of the construction section, clarify the track plate type, fastener type, and determine the required support height; Step 2: Determine the height of the height member according to the height of the support pad required. Before construction, first install the first height plate and the second height plate between the upper mounting plate and the lower mounting plate in a relatively arranged manner, and place the first rail bottom angle pressing block and the second rail bottom angle pressing block on both sides of the upper body, respectively, and place them on the top surfaces of the first fixing block and the second fixing block, respectively; Step 3: Remove the original fasteners and spring bars of the supported rail, lift the supported rail in the vertical direction, and place the corresponding ballastless rail mobile welded climbing pad on the ballastless track support platform to ensure the correct installation direction; Step 4: put the supported rail in place, ensure that the rail bottom of the supported rail is on the top surface of the upper mounting plate, fit the first limiting inclined surface on the first rail bottom angle pressure block and the second limiting inclined surface on the second rail bottom angle pressure block on the inclined surfaces on both sides of the rail bottom angle of the supported rail respectively, pass the original first line fastener bolt of the line through the first mounting hole and the second mounting hole in sequence, and then thread it on the rail support platform, pass the original second line fastener bolt of the line through the third mounting hole and the fourth mounting hole in sequence, and then thread it on the rail support platform, use an electric hand tool to tighten the first line fastener bolt and the second line fastener bolt, and the double locking mechanism of the ballastless rail mobile welding climbing pad and the ballastless track plate, and the rail and the ballastless rail mobile welding climbing pad can be realized; Step 5. At this time, the mobile welding equipment for the rail moves to the support area to carry out the rail welding operation. After the welding operation is completed, the welding equipment leaves the mobile welding climbing pad section of the ballastless rail. At this time, the mobile welding climbing pad of the ballastless rail is removed, and the original first line fastener bolts and the second line fastener bolts of the line are removed using electric hand tools, and the first rail bottom angle pressure block and the second rail bottom angle pressure block are removed. The supported rail is lifted, and the mobile welding climbing pad of the ballastless rail is moved out of the rail support platform, and the supported rail is placed in the line rail support platform, and the supported rail is locked using the original elastic bars, the first line fastener bolts, and the second line fastener bolts of the line.

11. A method for using a movable welded climbing pad for a ballastless rail, using the movable welded climbing pad for a ballastless rail as claimed in any one of claims 1 to 9 to replace the upper rail in a curved section of a ballastless track, characterized in that: The following steps are involved: Step 1: Investigate the line conditions of the construction section, clarify the track plate type, fastener type, and determine the required support height; Step 2: Determine the height of the height member according to the height of the support pad required. Before construction, first install the first height plate and the second height plate between the upper mounting plate and the lower mounting plate in a relatively arranged manner, and place the first rail bottom angle pressing block and the second rail bottom angle pressing block on both sides of the upper body, respectively, and place them on the top surfaces of the first fixing block and the second fixing block, respectively; Step 3: On the side of the curved upper rail, remove the original fasteners and spring bars of the curved upper rail, lift the curved upper rail in the vertical direction, and place the corresponding first ballastless rail mobile welded climbing pad on the ballastless track support platform to ensure the correct installation direction; Step 4: put the curved upper rail in place, ensure that the rail bottom of the curved upper rail is on the top surface of the upper mounting plate, fit the first limiting inclined surface on the first rail bottom angle pressure block and the second limiting inclined surface on the second rail bottom angle pressure block to the inclined surfaces on both sides of the rail bottom angle of the curved upper rail respectively, pass the original first line fastener bolt of the line through the first mounting hole and the second mounting hole in sequence, and then thread it on the rail support platform, pass the original second line fastener bolt of the line through the third mounting hole and the fourth mounting hole in sequence, and then thread it on the rail support platform, use an electric hand tool to tighten the first line fastener bolt and the second line fastener bolt, and the double locking mechanism of the first ballastless rail mobile welded climbing pad and the ballastless track plate, and the rail and the first ballastless rail mobile welded climbing pad can be realized; Step 5. At this time, the mobile rail welding equipment moves to the support area to carry out rail welding operations. After the welding operation is completed, the welding equipment leaves the support section. On the side of the curved upper rail, use an electric hand tool to remove the original first line fastener bolts and the second line fastener bolts of the line, remove the first rail bottom angle block and the second rail bottom angle block, lift the curved upper rail, move the first ballastless rail mobile welding climbing pad out of the rail support platform, and place the curved upper rail into the line rail support platform. Use the original spring bars and the first line fastener bolts and the second line fastener bolts of the line to lock the curved upper rail.

12. The method for using the ballastless rail mobile welding climbing pad according to claim 11, characterized in that: The following steps are also included: Step 6. On the side of the curved lower rail, remove the original fasteners and spring bars of the curved lower rail, lift the curved lower rail in the vertical direction, and place the corresponding second ballastless rail mobile welded climbing pad on the ballastless track support platform to ensure the correct installation direction; Step 7, put the curved lower rail in place, ensure that the rail bottom of the curved lower rail is on the top surface of the upper mounting plate, fit the first limiting inclined surface on the first rail bottom angle pressure block and the second limiting inclined surface on the second rail bottom angle pressure block to the inclined surfaces on both sides of the rail bottom angle of the curved lower rail respectively, pass the original first line fastener bolt of the line through the first mounting hole and the second mounting hole in sequence, and then thread it on the rail support platform, pass the original second line fastener bolt of the line through the third mounting hole and the fourth mounting hole in sequence, and then thread it on the rail support platform, use an electric hand tool to tighten the first line fastener bolt and the second line fastener bolt, and the double locking mechanism of the second ballastless rail mobile welding climbing pad and the ballastless track plate, and the rail and the second ballastless rail mobile welding climbing pad can be realized; Step 8. At this time, the mobile rail welding equipment moves to the support area to carry out rail welding operations. After the welding operation is completed, the welding equipment leaves the support section. On the side of the lower curved rail, use electric hand tools to remove the original first line fastener bolts and second line fastener bolts of the line, remove the first rail bottom angle pressure block and the second rail bottom angle pressure block, lift the lower curved rail, move the second ballastless rail mobile welding climbing pad out of the rail support platform, and place the lower curved rail into the line rail support platform. Use the original spring bars and the first line fastener bolts and the second line fastener bolts of the line to lock the lower curved rail.

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