阅读说明：本技术 一种道岔预铺插入施工方法 (Switch pre-laying insertion construction method ) 是由 冯全信 巨双庆 李爱民 邓小林 王宏彬 赵琼 刘胜强 赵渭江 于 2021-08-30 设计创作，主要内容包括：本发明提供了一种道岔预铺插入施工方法,属于铁道工程领域,其包括以下步骤：在既有线路旁预铺待插入的道岔；架设牵引系统；将待插入的道岔移动至单向传力滑车的承载部上,此时单向传力滑车位于工具轨的远离既有线路的一端；去除既有线路的需要被更换的道岔；连续千斤顶对牵引索作用拉力,带动单向传力滑车沿工具轨移动,直至待插入的道岔移动至既有线路去除了道岔的位置处；将待插入的道岔插入到既有线路中,两端与既有线路连接。本发明提供的道岔预铺插入施工方法有助于提高道岔更换的效率、节约人工成本。(The invention provides a switch pre-paving and inserting construction method, which belongs to the field of railway engineering and comprises the following steps: pre-laying turnouts to be inserted beside an existing road; erecting a traction system; moving a turnout to be inserted to a bearing part of a unidirectional force transmission pulley, wherein the unidirectional force transmission pulley is positioned at one end of a tool rail far away from an existing line; removing turnouts of existing lines, which need to be replaced; the continuous jack exerts a pulling force on the traction cable to drive the one-way force transmission pulley to move along the tool rail until the turnout to be inserted moves to the position where the turnout is removed from the existing line; and inserting the turnout to be inserted into the existing line, and connecting the two ends of the turnout with the existing line. The turnout pre-laying insertion construction method provided by the invention is beneficial to improving the turnout replacement efficiency and saving the labor cost.)

1. A switch pre-laying construction insertion method is characterized in that the method is used for replacing a switch of an existing line and comprises the following steps:

pre-laying turnouts to be inserted beside an existing road;

erecting a traction system, wherein the traction system comprises a continuous jack, a counter-force seat, a tool rail, a traction cable and a unidirectional force transmission pulley, one end of the continuous jack is fixedly connected with the counter-force seat, the other end of the continuous jack is connected with the traction cable, one end of the tool rail is connected with the existing line, the unidirectional force transmission pulley comprises a base which is in sliding fit with the tool rail and a bearing part which is in relative sliding connection with the base in a first direction, the first direction and the length extension direction of the tool rail form an included angle, and the traction cable is connected with the turnout to be inserted;

moving the turnout to be inserted to a bearing part of the unidirectional force transmission pulley, wherein the unidirectional force transmission pulley is positioned at one end of the tool rail far away from the existing line;

removing turnouts of the existing line, which need to be replaced;

the continuous jack exerts pulling force on the traction cable to drive the unidirectional force transmission pulley to move along the tool rail until the turnout to be inserted moves to the position where the turnout of the existing line is removed;

and inserting the turnout to be inserted into an existing line, and connecting two ends of the turnout to the existing line.

2. The switch pre-laying construction insertion method as claimed in claim 1, wherein said tool rail includes a first wing and a second wing arranged substantially in parallel, and further includes a web connecting the first wing and the second wing;

the base of the unidirectional force transmission pulley comprises a walking wheel and a frame body connected with the walking wheel, the walking wheel comprises a wheel body and end plates fixedly connected to two ends of the wheel body, the diameter of each end plate is larger than that of the wheel body, the cylindrical surface of the wheel body is used for being arranged on the first wing plate in a rolling mode, and the bearing portion is connected with the frame body.

3. The turnout pre-laying construction method according to claim 2, wherein the frame body comprises a connecting shaft, the bearing part is provided with a guide groove, a guide block capable of sliding along the guide groove is arranged in the guide groove, and the guide block is connected with the connecting shaft through a thrust bearing.

4. The turnout pre-laying construction method according to claim 2, wherein a rubber cushion is attached to the cylindrical surface.

5. The turnout pre-laying construction method according to claim 4, wherein the unidirectional force transmission trolley further comprises a stabilizing assembly, the stabilizing assembly comprises a pair of clamping wheels rotatably connected to the frame body, the pair of clamping wheels are respectively positioned at two sides of the web plate of the guide rail, the upper part of each clamping wheel is in contact with the first wing plate, and the lower part of each clamping wheel is spaced from the second wing plate.

6. The turnout pre-laying construction method according to claim 5, wherein the clamping wheel comprises a hub rotatably connected with the frame body and an inflation layer sleeved on the outer ring of the hub, and the inflation layer is in contact with the first wing plate.

7. The turnout pre-laying construction method according to claim 5, wherein the clamping wheels are detachably connected with the frame body, and in the step erection traction system:

the frame body is placed on the tool rail, then the clamping wheels are connected to the frame body, and then the inflatable layer is inflated.

8. The turnout pre-laying construction method according to any one of claims 1-7, wherein the step of pre-laying the turnout to be inserted beside the existing line comprises the following steps:

and moving the turnout to be inserted to the bearing part of the unidirectional force transmission pulley by adopting a gate type track lifting machine.

9. The turnout pre-laying construction method according to any one of claims 1-7, characterized in that the step of inserting the turnout to be inserted into an existing line:

and inserting the turnout to be inserted into the existing line by adopting a gantry track lifting machine.

10. The turnout pre-laying construction method according to any one of claims 1-7, wherein the step of pre-laying the turnout to be inserted beside the existing line comprises the following steps:

leveling and compacting the field, and setting up a turnout pre-assembly platform according to the measured position in the selected field;

distributing the switch sleepers on the platform in sequence according to the stages from small to large and the number of each stage, and mounting a base plate by using a threaded spike;

lifting some parts of turnout steel rails assembled according to a turnout delivery assembly diagram to a turnout sleeper to be positioned in a groove, paving an insulating buffer rubber pad in a turnout sleeper rail bearing groove before the groove is positioned, and centering and positioning according to a measured central line pile of a straight strand and a curved strand, wherein the straight strand is a track extending in the turnout along a straight line direction, and the curved strand is a track extending in the turnout along a curved line direction;

after the straight strand steel rail is in place, marking the position and the interval of each switch tie on the rail waist of the straight strand steel rail, shifting the switch tie to the marked position and reaching the standard of taking the tie heads on the side of the straight strand, finding out the position of the point of the straight strand switch tie on the curved strand according to the direction of the straight strand and marking, and manually shifting the other end of the switch tie to the position of the curved strand;

spreading various accessories on each pillow in sequence, and sequentially putting on the spiral path nail without screwing;

correcting the gauge and the correction position of the straight strand rail, and locking the straight strand steel rail; marking points of each offset position, sequentially correcting the position of the curved strand according to the designed offset, correcting the track pitch of the curved strand, calibrating the central line of the curved strand and locking the curved strand steel rail.

Technical Field

The invention relates to the field of railway engineering, in particular to a turnout pre-paving insertion construction method.

Background

Under the large environment of national economic rapid development, the railway passenger and goods station lines constructed in the early stage cannot meet the normal operation requirements, so that the existing passenger and goods station lines need to be improved and reconstructed, the reconstruction construction is a very complicated and difficult project, the success or failure of one station yard reconstruction is mainly the success or failure of the construction of the plug-in pavement turnout, and the plug-in pavement turnout construction becomes the main focus.

In the construction of a push-and-pull switch, the switch is usually transferred by means of rails and trolleys. Because the weight of the turnout is large, large force needs to be applied to the pre-paved turnout to realize the smooth transfer of the turnout. During the transfer process, a load shift can occur with little care, resulting in the capsizing of the trolley. Therefore, during the construction process, the transfer process is often suspended to correct the load direction, so that the construction efficiency is very low.

Disclosure of Invention

The invention provides a switch pre-paving and inserting construction method, aiming at solving the problems in the prior art.

The invention is realized by the following steps:

a switch pre-laying construction insertion method is used for replacing switches of existing lines and comprises the following steps:

pre-laying turnouts to be inserted beside an existing road;

erecting a traction system, wherein the traction system comprises a continuous jack, a counter-force seat, a tool rail, a traction cable and a unidirectional force transmission pulley, one end of the continuous jack is fixedly connected with the counter-force seat, the other end of the continuous jack is connected with the traction cable, one end of the tool rail is connected with the existing circuit, the unidirectional force transmission pulley comprises a base which is in sliding fit with the tool rail and a bearing part which is in relative sliding connection with the base in a first direction, the first direction and the length extension direction of the tool rail form an included angle, and the traction cable is connected with the base of the unidirectional force transmission pulley;

moving the turnout to be inserted to a bearing part of the unidirectional force transmission pulley, wherein the unidirectional force transmission pulley is positioned at one end of the tool rail far away from the existing line;

removing turnouts of the existing line, which need to be replaced;

the continuous jack exerts pulling force on the traction cable to drive the unidirectional force transmission pulley to move along the tool rail until the turnout to be inserted moves to the position where the turnout of the existing line is removed;

and inserting the turnout to be inserted into an existing line, and connecting two ends of the turnout to the existing line.

Optionally, the tool rail comprises a first wing plate and a second wing plate arranged substantially in parallel, and further comprises a web connecting the first wing plate and the second wing plate;

the base of the unidirectional force transmission pulley comprises a walking wheel and a frame body connected with the walking wheel, the walking wheel comprises a wheel body and end plates fixedly connected to two ends of the wheel body, the diameter of each end plate is larger than that of the wheel body, the cylindrical surface of the wheel body is used for being arranged on the first wing plate in a rolling mode, and the bearing portion is connected with the frame body.

Optionally, the frame body includes the connecting axle, the bearing part is equipped with the guide slot, be equipped with in the guide slot and follow the gliding guide block of guide slot, the guide block with the connecting axle passes through thrust bearing and connects.

Optionally, a rubber cushion is attached to the cylindrical surface.

Optionally, the unidirectional force transmission trolley further comprises a stabilizing assembly, the stabilizing assembly comprises a pair of clamping wheels rotatably connected to the frame body, the pair of clamping wheels are respectively located on two sides of the web plate of the guide rail, the upper portion of each clamping wheel is in contact with the first wing plate, and the lower portion of each clamping wheel is in contact with the second wing plate.

Optionally, the centre gripping wheel include with support body rotatable coupling's wheel hub and cover are located the layer of aerifing of wheel hub outer lane, aerify the layer with first pterygoid lamina with the contact of second pterygoid lamina.

Optionally, the clamping wheel with the support body can be dismantled and be connected in step erects traction system:

the frame body is placed on the tool rail, then the clamping wheels are connected to the frame body, and then the inflatable layer is inflated.

Optionally, the step of moving the switch to be inserted into the bearing portion of the unidirectional force transmission block:

and moving the turnout to be inserted to the bearing part of the unidirectional force transmission pulley by adopting a gate type track lifting machine.

Optionally, the step of inserting the switch to be inserted into the existing line:

and inserting the turnout to be inserted into the existing line by adopting a gantry track lifting machine.

Optionally, leveling and compacting the field, and setting up a turnout pre-assembly platform according to the measured position in the selected field;

distributing the switch sleepers on the platform in sequence according to the stages from small to large and the number of each stage, and mounting a base plate by using a threaded spike;

lifting some parts of turnout steel rails assembled according to a turnout outgoing assembly drawing to a turnout sleeper to be positioned in a groove, paving an insulating buffer rubber pad in a turnout sleeper rail bearing groove before the groove is positioned, and centering and positioning according to a measured central line pile of a straight strand and a curved strand, wherein the straight strand is a track extending in the turnout along a straight line direction, and the curved strand is a track extending in the turnout along a curved line direction;

marking the position and the interval of each switch tie on the rail waist of the straight strand steel rail after the straight strand steel rail is in place, shifting the switch tie to the marked position and reaching the standard of aligning the tie heads on the side of the straight strand, finding out the position of the point of the straight switch tie on the curved strand according to the direction of the straight strand and marking, and manually shifting the other end of the switch tie to the position of the curved strand;

spreading various accessories on each pillow in sequence, and sequentially putting on the spiral path nail without screwing;

correcting the gauge and the correction position of the straight strand rail, and locking the straight strand steel rail; marking points of each offset position, sequentially correcting the position of the curved strand according to the designed offset, correcting the track pitch of the curved strand, calibrating the central line of the curved strand and locking the curved strand steel rail.

The invention has the beneficial effects that: the invention provides a turnout pre-laying insertion construction method, which comprises the following steps: pre-laying turnouts to be inserted beside an existing road; erecting a traction system, wherein the traction system comprises a continuous jack, a counter-force seat, a tool rail, a traction cable and a unidirectional force transmission pulley, one end of the continuous jack is fixedly connected with the counter-force seat, the other end of the continuous jack is connected with the traction cable, one end of the tool rail is connected with an existing circuit, the unidirectional force transmission pulley comprises a base which is in sliding fit with the tool rail and a bearing part which is in relative sliding connection with the base in a first direction, the first direction forms an included angle with the length extending direction of the tool rail, and the traction cable is connected with the base of the unidirectional force transmission pulley; moving a turnout to be inserted to a bearing part of a unidirectional force transmission pulley, wherein the pulley is positioned at one end of a tool rail far away from an existing line; removing turnouts of existing lines, which need to be replaced; the continuous jack exerts a pulling force on the traction cable to drive the one-way force transmission pulley to move along the tool rail until the turnout to be inserted moves to the position where the turnout is removed from the existing line; and inserting the turnout to be inserted into the existing line, and connecting the two ends of the turnout with the existing line. In the process of replacing the turnout, traction force is continuously output through the continuous jack to pull the unidirectional force transmission pulley, and the base and the bearing part of the unidirectional force transmission pulley can relatively slide in the first direction, so that if the turnout has load deviation, the load deviation can be released through the relative sliding between the base and the bearing part, the overturning force acting on the base is avoided being converted into the load deviation, the overturning of the unidirectional force transmission pulley caused by the load deviation can be well prevented, the load direction correction is not needed to be carried out in the process of construction pause, the traction force is continuously output by the continuous jack in a matching mode, and the construction efficiency is favorably improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic field layout diagram of a turnout pre-laying insertion construction method provided by the embodiment of the invention in the implementation process.

Fig. 2 is a schematic structural diagram of the one-way force transmission pulley and the guide rail provided by the embodiment of the invention.

Fig. 3 is a partially enlarged view of a portion a in fig. 2.

Fig. 4 is a view of the bearing part viewed from the direction B in fig. 2.

Fig. 5 is a flow chart of a turnout pre-laying insertion construction method provided by the embodiment of the invention.

Icon: 1-a continuous jack; 2-a counter-force seat; 3-a traction cable; 4-a tool rail; 41-a first wing plate; 42-a second wing panel; 43-a web; 5-unidirectional force transmission pulley; 511-frame body; 512-wheel body; 513-end plates; 514-connecting plate; 515-a hub; 516-a gas-filled layer; 52-a carrier; 521-a guide groove; 522-a guide block; 524-thrust bearing; 53-a connecting shaft; 6-existing line; 7-switch to be inserted.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.

In the description of the present invention, it is to be understood that the terms indicating an orientation or positional relationship are based on the orientation or positional relationship shown in the drawings only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Examples

Please refer to fig. 1 and 5. The embodiment of the invention provides a switch pre-laying construction insertion method, which is used for replacing a switch of an existing line 6 and comprises the following steps:

s100, pre-paving a turnout 7 to be inserted beside an existing line 6;

step S200, erecting a traction system, wherein please refer to fig. 1 and fig. 2, the traction system comprises a continuous jack 1, a counter-force seat 2, a tool rail 4, a traction cable 3 and a unidirectional force transmission pulley 5, wherein one end of the continuous jack 1 is fixedly connected with the counter-force seat 2, the other end of the continuous jack is connected with the traction cable 3, one end of the tool rail 4 is connected with the existing line 6, the unidirectional force transmission pulley 5 comprises a base which is in sliding fit with the tool rail 4 and a bearing part 52 which is in relative sliding connection with the base in a first direction, the first direction forms an included angle with the length extending direction of the tool rail 4, and the traction cable 3 is connected with the base of the unidirectional force transmission pulley 5;

step S300, moving the turnout 7 to be inserted to a bearing part 52 of the unidirectional force transmission pulley 5, wherein the unidirectional force transmission pulley 5 is positioned at one end of the tool rail 4 far away from the existing line 6;

s400, removing turnouts of the existing line 6, which need to be replaced;

s500, the continuous jack 1 acts on a pulling force on the traction cable 3 to drive the unidirectional force transmission pulley 5 to move along the tool rail 4 until the turnout 7 to be inserted moves to the position where the turnout is removed from the existing line 6;

and S600, inserting the turnout 7 to be inserted into the existing line 6, wherein two ends of the turnout are connected with the existing line 6.

According to the turnout pre-laying construction insertion method provided by the embodiment of the invention, in the turnout replacement process, the continuous jack 1 continuously outputs traction force to pull the unidirectional force transmission pulley 5, and the base and the bearing part 52 of the unidirectional force transmission pulley 5 can relatively slide in the first direction, so that if the turnout generates load deviation, the load deviation can be released through the relative sliding between the base and the bearing part 52, the load deviation is prevented from being converted into overturning force acting on the base, the overturning of the unidirectional force transmission pulley 5 caused by the load deviation can be well prevented, the load direction correction is not required to be carried out in the suspension construction process, the continuous jack 1 is matched to continuously output the traction force, and the construction efficiency is favorably improved.

In some embodiments, the construction sequence of step S100 and step S200 may be exchanged or performed simultaneously.

In some embodiments, step S100 specifically includes:

s11, leveling and compacting the field, and setting up a turnout pre-assembly platform according to the measured position in the selected field;

s12, distributing the switch sleepers on a platform in sequence according to the number of stages from small to large and the number of each stage, and installing a base plate by using a threaded rail nail;

s13, lifting the turnout steel rails assembled into a plurality of parts to a switch sleeper to be in place in a groove before the groove is formed according to a turnout outgoing assembly drawing, wherein an insulating buffer rubber mat is paved in a turnout sleeper rail bearing groove, and the straight strands and curved strands are centered and in place according to measured center line piles of the straight strands and the curved strands, wherein the straight strands are tracks extending in the turnout along the straight direction, and the curved strands are tracks extending in the turnout along the curved direction;

s14, after the straight strand steel rail is in place, marking the position and the interval of each switch tie on the rail waist of the straight strand steel rail, shifting the switch tie to the marked position and reaching the standard of alignment of the tie heads on the side of the straight strand, then finding out the position of the straight switch tie point on the curved strand according to the direction of the straight strand and marking, and manually shifting the other end of the switch tie to the position of the curved strand;

s15, scattering various accessories on the pillows in sequence, and sequentially loading the accessories on the screw way nails without screwing;

s16, correcting the gauge and the correction position of the straight strand rail, and locking the straight strand steel rail; marking points of each offset position, sequentially correcting the position of the curved strand according to the designed offset, correcting the track pitch of the curved strand, calibrating the central line of the curved strand and locking the curved strand steel rail.

In some embodiments, step S200 comprises:

s21, pouring to form a counter-force seat 2;

specifically, the reaction base 2 is of a reinforced concrete structure. A through hole is arranged on the counter-force seat 2 and is used for the traction rope 3 to pass through.

S22, installing a continuous jack 1;

the continuous jack 1 may be configured as an intelligent continuous jack 1, and specifically, the model ZLD series intelligent continuous jack 1 may be selected to continuously output the traction force.

S23, mounting a tool rail 4 and a unidirectional force transmission pulley 5;

in particular, please refer to fig. 2-4. The tool rail 4 comprises a first wing 41 and a second wing 42 arranged substantially in parallel, and a web 43 connecting the first wing 41 and the second wing 42. In other words, the cross-section of the tool rail 4 is substantially "i" shaped.

The base of the unidirectional force transmission pulley 5 comprises a walking wheel and a frame body 511. Wherein, the walking wheel includes wheel body 512 and the end plate 513 of fixed connection at wheel body 512 both ends, and the diameter of end plate 513 is greater than the diameter of wheel body 512, and the face of cylinder of wheel body 512 is used for rollably placing in first pterygoid lamina 41, and the both sides of first pterygoid lamina 41 are placed in to the end plate 513 at wheel body 512 both ends to can play the block effect to a certain extent, avoid wheel body 512 and first pterygoid lamina 41 to break away from. The bearing part 52 is connected with the frame body 511, specifically, the frame body 511 comprises a connecting shaft 53, the bearing part 52 is provided with a guide groove 521, a guide block 522 which can slide along the guide groove 521 is arranged in the guide groove 521, and the cross section shape of the guide block 522 is basically matched with that of the guide groove 521. For example, the guide groove 521 may be provided as a dovetail groove, and the guide block 522 may also be provided with a dovetail shape in cross section. By the cooperation of the guide block 522 and the guide groove 521, relative sliding between the frame body 511 and the bearing part 52 can be realized, thereby helping to release the force generated by load offset in the direction along the guide groove 521 when the load offset occurs. The guide block 522 is connected to the connecting shaft 53 through the thrust bearing 524, in other words, the guide block 522 and the connecting shaft 53 can rotate relatively, so that the bearing part 52 can rotate relatively to the frame body 511.

The cylindrical surface of the wheel body 512 is provided with a rubber cushion layer, that is, the surface of the wheel body 512 which can be in rolling contact with the first wing plate 41 is provided with a rubber cushion layer, which is helpful for reducing the impact load of the wheel body 512 in the rolling process relative to the first wing plate 41.

The unidirectional force transfer trolley 5 further comprises a stabilizing assembly, wherein the stabilizing assembly comprises a pair of clamping wheels rotatably connected to the frame body 511, specifically, the clamping wheels are respectively located at two sides of the web 43 of the guide rail, the upper part of the clamping wheel is in contact with the first wing plate 41, and the lower part of the clamping wheel is spaced from the second wing plate 42. Further, each clamping wheel all sets up on a connecting plate 514, connecting plate 514 and support body detachable fixed connection. The clamping wheel comprises a hub 515 and an inflation layer 516, wherein the hub 515 is rotatably connected with the connecting plate 514, and the inflation layer 516 is sleeved on the outer ring of the hub 515. When the inflation layer 516 is in the deflation state, the connecting plate 514 is connected to the frame body, at this time, the inflation layer 516 is positioned between the first wing plate 41 and the second wing plate 42, and a gap is formed between the inflation layer 516 and the first wing plate 41 and the second wing plate 42, then the inflation layer 516 is inflated, the volume of the inflation layer 516 is expanded, so that the inflation layer 516 is in contact with the first wing plate 41, and a gap is still left between the inflated inflation layer 516 and the second wing plate 42. After the clamping wheels on the two sides are inflated to be in contact with the first wing plate 41, the clamping wheels can be in close contact with the first wing plate 41 to further prevent the side turning. Leaving a gap between the clamping wheel and the second wing 42 helps to allow the clamping wheel to rotate freely and prevent the clamping wheel from being restricted in rotation.

Based on the above structure, step S23 specifically includes:

s231, installing a tool rail 4;

s232, arranging a base and a bearing plate of the unidirectional force transmission pulley 5 on the tool rail 4;

specifically, the frame body of the base is placed on the tool rail 4, and the rubber cushion layer outside the wheel body 512 is in contact with the top surface of the first wing plate 41 of the tool rail 4;

s233, connecting a connecting plate 514 of the unidirectional force transmission pulley 5 to a frame body of the base, wherein an inflatable layer 516 of the clamping wheel is in an air release state;

and S234, inflating the inflating layer 516 of the clamping wheel to enable the inflating layer 516 of the clamping wheel to be in contact with the first wing plate 41.

Through the steps, the unidirectional force transmission pulley can be conveniently installed, and the anti-rollover effect of the unidirectional force transmission pulley is realized.

Step S200 further includes:

s24, installing a traction cable 3;

one end of the traction cable 3 is fixed on the turnout, and the other end is anchored on the continuous jack 1. The middle part of the traction rope 3 passes through a through hole on the counter force seat 2.

In some embodiments, step S300 specifically includes: treat that male switch 7 rises through portal track jack, supports the switch temporarily with short sleeper, treat that all weight of male switch 7 are born by portal track jack and temporary short sleeper this moment, will treat male switch 7 to shift to one-way bearing portion 52 of biography power coaster 5.

In some embodiments, step S600 specifically includes: treat that male switch 7 rises from one-way biography power coaster 5 through gate-type track jack, supports the switch temporarily with short sleeper, treats that all weights of male switch 7 are born by gate-type track jack and interim short sleeper this moment, will treat during male switch 7 shifts existing circuit 6, both ends with have the line connection. Further, when connecting the inserted switch with the track: holes are punched at preset positions by a punching machine, and then the wiring is connected through an insulation clamp plate.

The turnout pre-laying construction insertion method provided by the embodiment has good offset load release capacity, and can prevent system instability caused by load offset, so that multiple shutdown and manual load adjustment are not needed, the continuous jack 1 can continuously output traction force, the turnout construction efficiency can be obviously improved, and the manual labor input can be obviously reduced.

According to estimation, if a traditional mode in the prior art is adopted, the time of turnout pre-laying insertion construction in a certain project is about 300 minutes, and the number of people is 180-200. By adopting the mode provided by the embodiment, the construction correction load does not need to be stopped frequently, the estimated time consumption only needs 180 minutes, and the number of people is about 30.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.