CN114753194B - Construction process for replacing turnout of paving machine set - Google Patents
Construction process for replacing turnout of paving machine set Download PDFInfo
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- CN114753194B CN114753194B CN202210414067.4A CN202210414067A CN114753194B CN 114753194 B CN114753194 B CN 114753194B CN 202210414067 A CN202210414067 A CN 202210414067A CN 114753194 B CN114753194 B CN 114753194B
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- paving
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- 238000010276 construction Methods 0.000 title claims abstract description 161
- 238000000034 method Methods 0.000 title claims abstract description 83
- 230000008569 process Effects 0.000 title claims abstract description 75
- 238000003466 welding Methods 0.000 claims abstract description 29
- 210000001503 joint Anatomy 0.000 claims description 30
- 241001669679 Eleotris Species 0.000 claims description 23
- 238000009434 installation Methods 0.000 claims description 11
- 238000002360 preparation method Methods 0.000 claims description 7
- 230000007246 mechanism Effects 0.000 claims description 4
- 238000009940 knitting Methods 0.000 claims description 3
- 239000004575 stone Substances 0.000 claims description 3
- 230000001066 destructive effect Effects 0.000 claims 1
- 239000002699 waste material Substances 0.000 abstract description 7
- 230000032258 transport Effects 0.000 description 47
- 238000010586 diagram Methods 0.000 description 24
- 238000012423 maintenance Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 230000007480 spreading Effects 0.000 description 2
- 238000003892 spreading Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B29/00—Laying, rebuilding, or taking-up tracks; Tools or machines therefor
- E01B29/02—Transporting, laying, removing, or renewing lengths of assembled track, assembled switches, or assembled crossings
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B29/00—Laying, rebuilding, or taking-up tracks; Tools or machines therefor
- E01B29/06—Transporting, laying, removing or renewing sleepers
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B29/00—Laying, rebuilding, or taking-up tracks; Tools or machines therefor
- E01B29/16—Transporting, laying, removing, or replacing rails; Moving rails placed on sleepers in the track
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Machines For Laying And Maintaining Railways (AREA)
Abstract
The invention provides a construction process for replacing a turnout by a paving machine set. The construction process for replacing the turnout by the paving machine set comprises the following steps of: step S1, preparing equipment before construction; step S2, pretreatment of turnout: s2.1, pre-paving the turnout; s2.2, transporting the turnout; s2.3, whole group welding of turnouts: and S3, replacing and constructing the turnout. The construction process for replacing the turnout by the replacing machine set improves the pre-paving environment, uses construction equipment such as a turnout transport vehicle, a replacing machine and the like, improves the efficiency and quality of the pre-paving of the turnout, uses large-scale lifting equipment to replace manual labor to complete labor-intensive operation, solves the problems of more field construction personnel and high labor intensity, reduces the damage of the construction process to the turnout, reduces the waste materials generated in the construction process, and optimizes and improves the whole transportation by taking away a large amount of waste materials on the spot on the basis of the existing construction method, and provides a safer, efficient and economical construction method.
Description
Technical Field
The invention relates to the technical field of turnout replacement construction processes, in particular to a turnout replacement construction process for a paving machine set.
Background
Along with the continuous development of society, the use frequency of trains is continuously improved, the maintenance workload of railway departments on the lines is also continuously increased, and the maintenance and fresh-changing work of the railway lines is carried out with quality and quantity conservation, so that the maintenance and fresh-changing work is an important guarantee for the running safety of the trains.
The turnout is one of the weakest links of the whole track system, is key equipment for limiting the running speed of a train, is an important link for ensuring the normal use of the turnout, and can ensure that the turnout has high smoothness only by high-precision paving quality, and further ensures the comfort and safety of the train when the train passes.
The special construction method is limited by factors such as geographical conditions of paving positions, equipment, skylight point time, construction cost and the like, most of domestic high-speed turnout paving construction adopts a man-sea tactic, less special paving equipment is used, the forms of hoisting tools are different, and paving quality and efficiency are difficult to ensure practically, so that the special construction method is an urgent long-term requirement for reducing the labor intensity of paving work and improving the paving efficiency and paving quality.
Therefore, it is necessary to provide a construction process for replacing the turnout by the laying machine set to solve the technical problems.
Disclosure of Invention
The invention provides a construction process for replacing a turnout by a pavement and replacement machine set, which solves the problem that the pavement environment of the turnout construction process needs to be improved.
In order to solve the technical problems, the construction process for replacing the turnout of the paving machine set provided by the invention comprises the following steps:
step S1, preparation work of equipment before construction, wherein the preparation of the equipment before construction comprises the following steps: the turnout transport vehicle, the turnout spreader, the turnout transfer device and the turnout sleeper transport device, wherein the number of the turnout transport vehicles is at least 2;
step S2, pretreatment of turnout:
s2.1, pre-paving the turnout;
s2.2, transporting the turnout;
s2.3, whole group welding of turnouts:
hoisting a new turnout to a lower computer by a turnout spreader for alignment and integral welding;
s3, replacing and constructing the turnout:
the replacement construction flow is as follows:
a. constructing multiple parts of knitting components, respectively moving to a construction position, then starting to disassemble an old turnout, switching a turnout paving machine to a track belt moving mode, and preparing to lift the old turnout;
b. the switch spreader integrally lifts the old switch, and the track moves to the switch transport vehicle position to place the old switch;
c. after the old turnout is placed by the turnout paving machine, the crawler belt moves to a new turnout position, a new turnout is ready to be lifted, the excavator enters the ground to clear the ballast bed, the ballast is supplemented once, and the ballast bed is leveled;
d. the excavator is removed, and a new turnout is installed by moving the track belt of the turnout paving machine;
e. the track of the turnout spreader runs to the position of the lower computer, the lower computer is lifted, the grouped running is matched with the operation of the turnout spreader, and the lower computer is switched to a returning state;
f. starting operations such as track bed arrangement, secondary ballasting, rail replacement, electric service debugging and the like;
g. and (5) grouping and connecting, preparing for departure, and finishing the switch replacement construction.
Preferably, in the step S2.1, the switch pre-paving adopts a base pre-paving method, and the switch pre-paving is performed on a base or other places where large hoisting equipment is convenient to use, and adopts a split pre-paving mode, so that the switch pre-paving operation does not comprise a switch rear sleeper part.
Preferably, in the step S2.2, when the switch is transported, after the switch is pre-paved on the base, the switch is lifted from the pre-paved platform by means of a switch paving machine and is loaded onto a switch transport vehicle, and the switch transport vehicle is used for completing the transportation work of the switch from the pre-paved base to the construction site, and adopts a segmented whole group transportation mode.
Preferably, in the step S2.3, when the whole group of turnouts is welded, the turnouts are in a segmented whole group state during transportation, and before the turnout replacement construction, the whole welding is required to be performed, so that a whole group of turnouts are formed for replacement construction, and the whole welding work of the segmented turnouts is required to be performed by means of a turnout transport vehicle, a turnout spreader and a turnout sleeper transport device.
Preferably, in the step S3, during the switch replacement construction, the switch transport vehicle, the switch spreader, the switch transfer device and the switch sleeper transport device enter the switch replacement construction site in a grouping manner.
Preferably, in the process a of the step S3, the turnout welded into the whole group enters the turnout replacement construction site by adopting the turnout transferring device.
Preferably, in the process b of the step S3, the old turnout is removed in a whole set by using a turnout spreader, the removed old turnout is placed on a turnout transport vehicle by using the turnout spreader, the whole turnout is transported away from the construction site in a segmented manner, and the long sleeper part of the removed old turnout is placed on a turnout sleeper transport device by using the turnout spreader, and the detached turnout is transported away from the construction site.
Preferably, in the process d of the step S3, the switch spreader is used to integrally install the new switch, and the switch spreader loads the whole group of switches to complete the installation of the new switch in a running mode of longitudinal track running or transverse stepping.
Preferably, the new turnout is installed by adopting a nondestructive clamp to connect rail joints.
Preferably, in the flow f of the step S3, the backfilling mode of the stone ballast is performed by using an excavator.
Compared with the related art, the construction process for replacing the turnout of the paving machine set has the following beneficial effects:
the invention provides a construction process for replacing a turnout by a paving machine set, which improves the pre-paving environment, uses construction equipment such as a turnout transport vehicle, a paving machine and the like, improves the efficiency and quality of turnout pre-paving, uses large-scale lifting equipment to the construction link, replaces manual work to finish labor-intensive operation, solves the problems of more field construction personnel and high labor intensity, reduces the damage to the turnout in the construction process, reduces the waste materials generated in the construction process, and optimizes and improves the whole transportation by taking away a large amount of waste materials on the spot on the basis of the existing construction method, and provides a safer, efficient and economic construction method.
Drawings
FIG. 1 is a system diagram of a part of a replacing construction flow in a railroad switch replacing construction process of a replacing machine set provided by the invention;
FIG. 2 is a system diagram of a part b of a replacing construction flow in a railroad switch replacing construction process of the paving machine set provided by the invention;
FIG. 3 is a system diagram of a part of a replacing construction flow c in a railroad switch replacing construction process of the paving machine set provided by the invention;
fig. 4 is a system diagram of a part d of a replacing construction flow in a railroad switch replacing construction process of the replacing machine set provided by the invention;
FIG. 5 is a system diagram of a part of a replacing construction flow e in a railroad switch replacing construction process of the paving machine set provided by the invention;
FIG. 6 is a system diagram of the replacement construction flow f and g parts in the construction process of replacing the turnout by the paving machine set;
FIG. 7 is a system diagram of a part of step 1 of whole-set welding of a turnout in a construction process for replacing the turnout by a paving machine set;
FIG. 8 is a system diagram of a part of step 2 of whole-set welding of turnout in the construction process of replacing turnout by the paving machine set;
FIG. 9 is a system diagram of a part of step 3 of whole-set welding of turnout in the construction process of replacing turnout by the paving machine set;
FIG. 10 is a system diagram of a part 5 of a whole set of turnouts welding step in a construction process for replacing turnouts by a paving machine set;
FIG. 11 is a system diagram of a part of a step 6 of whole-set welding of a turnout in a construction process for replacing the turnout by a paving machine set;
FIG. 12 is a system diagram of a part 7 of a whole set of turnouts welding step in a construction process for replacing turnouts by a paving machine set;
FIG. 13 is a schematic structural view of a clamping device used when the paving machine equipment is installed and used in the construction process of replacing turnout of the paving machine set;
FIG. 14 is a schematic view of the overall structure shown in FIG. 13;
FIG. 15 is a three-dimensional view of the lower plate shown in FIG. 13;
FIG. 16 is a schematic view of the stop collar of FIG. 13 in a contracted configuration;
FIG. 17 is a schematic view showing a structure of the upper clamping plate shown in FIG. 16 in a rotated open state;
FIG. 18 is a schematic view showing the structure of the upper clamping plate shown in FIG. 17 in a state of being integrally pushed horizontally;
fig. 19 is a schematic view showing a structure in a state in which the upper clamping plate shown in fig. 18 is taken out;
fig. 20 is a schematic view showing a structure in a state in which the lower clamping plate is drawn out shown in fig. 19;
fig. 21 is a construction flow chart of the construction process for replacing the turnout by the paving machine set.
Reference numerals in the drawings:
1. a track;
2. a mechanical arm;
3. the lower clamping plate, 31, the first butt joint shaft, 32, the limiting plate, 301 and the mounting clamping groove;
4. the upper clamping plate, 41, the clamping shaft, 42 and the second butt joint shaft;
5. the limiting mechanism, 51, the telescopic piece, 52 and the limiting ring.
Detailed Description
The invention will be further described with reference to the drawings and embodiments.
Referring to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7, fig. 8, fig. 9, fig. 10, fig. 11, fig. 12, and fig. 21 in combination, fig. 1 is a system diagram of a part of a replacing construction flow a in a replacing turnout construction process of a replacing machine set provided by the invention; FIG. 2 is a system diagram of a part b of a replacing construction flow in a railroad switch replacing construction process of the paving machine set provided by the invention; FIG. 3 is a system diagram of a part of a replacing construction flow c in a railroad switch replacing construction process of the paving machine set provided by the invention; fig. 4 is a system diagram of a part d of a replacing construction flow in a railroad switch replacing construction process of the replacing machine set provided by the invention; FIG. 5 is a system diagram of a part of a replacing construction flow e in a railroad switch replacing construction process of the paving machine set provided by the invention; FIG. 6 is a system diagram of the replacement construction flow f and g parts in the construction process of replacing the turnout by the paving machine set; FIG. 7 is a system diagram of a part of step 1 of whole-set welding of a turnout in a construction process for replacing the turnout by a paving machine set; FIG. 8 is a system diagram of a part of step 2 of whole-set welding of turnout in the construction process of replacing turnout by the paving machine set; FIG. 9 is a system diagram of a part of step 3 of whole-set welding of turnout in the construction process of replacing turnout by the paving machine set; FIG. 10 is a system diagram of a part 5 of a whole set of turnouts welding step in a construction process for replacing turnouts by a paving machine set; FIG. 11 is a system diagram of a part of a step 6 of whole-set welding of a turnout in a construction process for replacing the turnout by a paving machine set; FIG. 12 is a system diagram of a part 7 of a whole set of turnouts welding step in a construction process for replacing turnouts by a paving machine set; fig. 21 is a construction flow chart of the construction process for replacing the turnout by the paving machine set.
A construction process for replacing a turnout by a paving machine set comprises the following steps:
step S1, preparing equipment before construction;
step S2, pretreatment of turnout:
s2.1, pre-paving the turnout;
s2.2, transporting the turnout;
s2.3, whole group welding of turnouts:
hoisting the new turnout to a lower computer by a spreader for alignment and integral welding;
s3, replacing and constructing the turnout:
the replacement construction flow is as follows:
a. as shown in fig. 1, constructing multiple parts of knitting components, respectively moving to a construction position, then starting to disassemble an old turnout, switching a spreader to a crawler belt moving mode, and preparing to lift the old turnout;
b. as shown in fig. 2, the spreader integrally lifts the old turnout, and the crawler tracks to the turnout transport vehicle position, and places the old turnout;
c. as shown in fig. 3, after the old turnout is placed by the spreader, the crawler tracks to the new turnout position, the new turnout is ready to be lifted, the excavator enters the ground to clear the ballast bed, the ballast is supplemented once, and the ballast bed is leveled;
d. as shown in fig. 4, the excavator is evacuated, and the crawler belt of the spreader is moved to install a new turnout;
e. as shown in fig. 5, the crawler of the spreader runs to the position of the lower computer, the lower computer is lifted, the marshalling running cooperates with the spreader to work, and the lower computer is switched to a returning state;
f. as shown in fig. 6, the operations of arranging ballast beds, secondarily ballasting, replacing rails before and after replacement, debugging electric tasks and the like are started;
g. as shown in fig. 6, the group is hung, and the departure is prepared, so that the switch is replaced and constructed.
The whole group of the turnout is replaced and constructed by large-scale construction equipment such as a turnout transport vehicle, a spreader, a turnout sleeper transport device and the like, the influence of factors such as site track side buildings, site construction conditions and the like is comprehensively considered, the turnout replacement and construction efficiency can be improved, the labor intensity of the spreading and replacing work is reduced, the construction cost can be reduced, and the turnout replacement quality is improved.
The preparation of the equipment before construction in the step S1 comprises the following steps: the turnout transport vehicle, the turnout spreader, the turnout transfer device and the turnout sleeper transport device, and the number of the turnout transport vehicles is at least 2.
Wherein the switch spreader is simply referred to as a spreader.
The turnout transport vehicle is provided with a tilting turnover operation device and a traversing device, and meets the requirement of sectionalized whole group transportation from a pre-paved site to a construction site, and is a four-shaft hydraulic transmission vehicle, and the shaft array is B 0 And 2, in the turnout transportation state, the turnout loading flat plate is in an inclined state, the highest linking speed is 100km/h, and the highest self-running speed is 15km/h.
The turnout paving machine adopts the crawler belt to move, has strong adaptability to the terrain and has the maximum self-walking speed of 4km/h. The horizontal stepping function is achieved, the linkage cooperative operation of a plurality of paving machines can be carried out, the section transportation is completed through a special flat car, and the paving machine can get on or off the car by itself.
The turnout transfer device is track equipment, has the capacity of loading the whole group of turnouts for short-distance transfer, has the minimum curve radius of 145m, is loaded with a turnout bearing platform, and has the functions of rotation and transverse movement.
The turnout sleeper conveying device is a special conveying device for parts of the turnout rear track panel, has the function of pre-paving the turnout rear track panel, and has the maximum sleeper length of 4.8m for loading and conveying.
In the step S2.1, a base pre-paving method is adopted for the turnout pre-paving, the pre-paving work is carried out on a base or other places convenient for using large-scale hoisting equipment, and a split pre-paving mode is adopted, so that the turnout pre-paving work does not comprise a turnout rear sleeper part.
The pre-paving operation flow is as follows:
putting (hanging) rails and frog on a frame, firstly placing stock rails and switch rails at the switch part, using square straight bent stock rail joints and switch rail positions, then placing other stock rails and guide rails, and reserving rail gaps according to welding requirements;
marking points and numbering on straight-strand steel rails according to the turnout assembly technical standard, positioning straight turnout ties at the points, assembling turnouts according to a laying chart, calibrating the positions of branch distance points, adjusting the geometric dimensions of the turnouts to reach the acceptance standard, and marking turnout marks (track gauges, branch distances and the like);
after the turnout pre-paving is finished, a special person is arranged to check and accept the turnout pre-paving quality and fill in check and accept records, and the pre-paving quality meets the related requirements of 'changing new turnout check and accept standard' of 'railway line repair rules'.
When the turnout in the step S2.2 is transported, after the turnout is pre-paved on the base, the turnout is lifted from the pre-paved platform by means of a paving machine and is loaded onto a turnout transport vehicle, and the turnout transport vehicle is used for completing the transportation work of the turnout from the pre-paved base to the construction site, and adopts a sectional whole group transportation mode.
The concrete flow of switch transportation is as follows:
the turnout transport vehicle moves to a position where turnouts are ready to be loaded by self, and the operation platform is switched to a flat state;
lifting the whole turnout by means of a spreader or other lifting equipment, and loading the turnout on a turnout transport vehicle according to the placing requirement of the turnout transport vehicle;
the constructor installs the lockset on the switch transport vehicle;
the turnout transport vehicle is switched to a returning state;
after the running conditions are confirmed by the shipping department, the turnout transport vehicle is pulled by the tractor to form a group to enter a positive line, and the turnout is transported to a construction site from a pre-paved base.
And when the whole group of turnouts is welded in the step S2.3, the turnouts are in a segmented whole group state during transportation, the whole welding is required before the turnout replacement construction, the whole welding of the segmented turnouts is required to be carried out by means of a turnout transport vehicle, a spreader and a turnout sleeper transport device, and the whole welding of the segmented turnouts is required to be carried out by combined construction operation.
The new turnout is hoisted to a lower computer by a spreader for alignment and integral welding, and the concrete steps are as follows:
step 1, constructing and preparing a skylight, wherein a construction group arrives at a construction station, and stops at the station to a departure line;
step 2, switching the spreader 1 and the spreader 2 to a crawler running mode, switching the operation platform of the turnout transport vehicle to a horizontal state, pre-spreading a rear track panel on the turnout sleeper transport vehicle, and unloading the lower computer by the spreader;
step 3, the paving machine is in situ motionless, the new turnout is positioned below the paving machine by grouping movement, the track of the paving machine moves to adjust the position, the segmented turnout is integrally lifted, and the segmented turnout is placed on a line and aligned;
step 4, after aligning the interfaces of the sectional turnouts, removing the spreader to perform integral welding work of the sectional turnouts;
step 5, after the turnout is welded, the spreader moves to a new turnout position, the new turnout is lifted integrally, and the lower computer moves to the place below the spreader and the new turnout, so that a whole group of new turnouts is ready to be loaded;
step 6, loading a new turnout running and moving away by a lower computer, wherein the spreader is in situ and is stationary, and the marshalling running is that a spreader transport vehicle is positioned below the spreader;
step 7, switching the spreader to a returning state, and completing construction preparation skylight operation;
so far, the whole group of turnout welding work in the construction preparation skylight is completed.
In the step S3, when the turnout is replaced, the turnout transport vehicle, the turnout spreader, the turnout transfer device and the turnout sleeper transport device enter a turnout replacement construction station by adopting a grouping mode.
In the process a of the step S3, the turnout welded into the whole group enters a turnout replacement construction site by adopting a turnout transfer device, the construction group is divided into three parts of a turnout transport vehicle group, a turnout transfer device group and a trolley group, and the old turnout is disassembled after the turnout transport vehicle group respectively moves to the illustrated construction position, wherein the turnout transport vehicle group transports a spreader to the turnout replacement position, the spreader is switched to a track belt moving mode, and the old turnout is ready to be lifted.
In the process b of the step S3, the old turnout is removed in a whole set by using the turnout spreader, the removed old turnout is placed on the turnout transport vehicle by using the turnout spreader, the whole turnout is transported away from the construction site in a segmented manner, and the turnout sleeper part of the removed old turnout is placed on the turnout sleeper transport device by using the turnout spreader, and the turnout sleeper part is transported away from the construction site after the turnout is disassembled.
Before the old turnout is removed by the turnout spreader, the old turnout can be in an integral state or a segmented state and is divided into three parts of a switcher, a frog and a rear rail panel of the turnout.
The lock of the spreader is connected with the turnout, after the completion, the spreader integrally lifts the old turnout, the lifting height of the turnout is reduced as much as possible on the premise of meeting the running passing requirement, the crawler tracks move to the turnout transport vehicle position, and the old turnout is placed according to the position requirement of turnout placement.
After the old turnout is accurately placed on the turnout transport vehicle by the spreader, unlocking the lockset connection between the spreader and the turnout, moving the empty crawler belt of the spreader to a new turnout position, reducing the travel height of the spreader after leaving the turnout transport vehicle area, and after the spreader passes through the turnout replacement construction area, dredging the ballast bed by the excavator, and leveling the ballast bed once.
In the process d of the step S3, the whole installation of the new turnout is carried out by using a turnout spreader, and the turnout spreader loads the whole group of turnout to carry out the running or the transverse stepping running mode to finish the installation of the new turnout.
The excavator is evacuated, the lockset of the spreader is connected with the turnout, the new turnout is hoisted, the hoisting height of the new turnout is reduced as much as possible on the premise of not influencing the running and passing capacity, the crawler of the spreader runs into a construction area, and the transverse and longitudinal accurate alignment function of the spreader is used for completing the installation work of the new turnout.
After the new turnout is installed, the lock connection between the spreader and the new turnout is released, the idle crawler of the spreader runs to the position of the lower computer, the lower computer is connected with the spreader by using a rigging and lifted, the lifting height is greater than 1300mm from the lowest point of the lower computer to the rail surface, the flatcar is grouped and run, the flatcar is positioned below the lower computer, the spreader places the lower computer on the flatcar according to the position placing requirement, the lower computer is connected with a locking device between the lower computer and the flatcar, and the lower computer is switched to a returning state.
And during the installation of the new turnout, the nondestructive clamp is adopted to connect the rail joints.
In the process f of the step S3, the backfilling mode of the stone ballast is performed by adopting an excavator.
The method can also be carried out by adopting an old K car.
The method has the advantages that the pre-paving environment is improved, construction equipment such as a turnout transport vehicle and a lower computer is used, so that the turnout pre-paving method is not limited to an on-site pre-paving method and a pre-paving method, the pre-paving of turnout on a base is realized, and the efficiency and the quality of turnout pre-paving are improved by means of more convenient and safer construction conditions;
the efficiency and the quality of turnout transportation are improved, construction equipment such as turnout transport vehicles, lower computers and the like are used, a segmented whole group of turnouts can be loaded for long-distance transportation and short-distance transportation, the turnout transportation device has curve passing capability, the turnout can be rapidly transported in an interval and a station, and the turnout off risk in the transportation process is reduced;
the number of constructors is reduced, the labor intensity of a turnout disassembly link is high in domestic turnout replacement construction, the number of constructors is high, large-scale hoisting equipment such as a spreader and the like is applied to the construction link, labor-intensive operation is replaced by manual work, and the problems of a large number of field constructors and high labor intensity are solved;
the damage to the turnout in the construction process is reduced, the domestic turnout transferring mode is relatively crude, standardized operation is difficult to realize based on the mode of manual and medium-sized machine combined construction operation, the risk of damaging the turnout structure exists, and the requirement of a construction method of a turnout disassembly link is combined, so that the turnout needs to be lifted and transferred by adopting special integral hoisting equipment, and the large deformation of the turnout in the construction process is avoided as much as possible;
the old material storage on site is reduced, the thought of the whole disassembly and the whole transportation of the turnout is applied to the construction method, the waste and old materials generated in the construction process can be reduced through the whole disassembly and the whole transportation, and a large amount of old materials on site can be taken away through the whole transportation;
the integrated construction method for covering the whole process of the turnout replacement construction is researched, the improvement is optimized on the basis of the existing construction method, and a safer, more efficient and economical construction method is provided.
Compared with the related art, the construction process for replacing the turnout of the paving machine set has the following beneficial effects:
the technology improves the pre-paving environment, uses construction equipment such as a turnout transport vehicle, a lower computer and the like, improves the efficiency and the quality of turnout pre-paving, applies large-scale lifting equipment to the construction link, replaces manual work to finish labor-intensive operation, solves the problems of more field construction personnel and high labor intensity, reduces the damage of the construction process to the turnout, reduces the waste materials generated in the construction process, and brings away a large amount of waste materials on site through integral transportation, optimizes and improves the construction on the basis of the existing construction method, and proposes a safer, efficient and economical construction method.
Referring to fig. 13, 14, 15, 16, 17, 18, 19 and 20, the guide rail clamping device used when the equipment of the spreader is installed in the construction process of replacing a turnout by using the spreader provided by the invention comprises:
the mechanical arm comprises a mechanical arm 2 and a lower clamping plate 3 arranged on a track 1, wherein the lower clamping plate 3 is fixedly arranged on the mechanical arm 2 through a first butt joint shaft 31, a limiting plate 32 is fixedly arranged on the lower clamping plate 3, the limiting plate 32 is abutted on the track 1, and an installation clamping groove 301 is formed in the lower clamping plate 3;
the upper clamping plate 4 is inserted into the mounting clamping groove 301 through the clamping shaft 41, the clamping shaft 41 is clamped with the lower clamping plate 3 through the mounting clamping groove 301 to limit, the upper clamping plate 4 is sleeved on the guide rail 1, the upper clamping plate 4 is fixedly provided with a second butt joint shaft 42, the first butt joint shaft 31 and the second butt joint shaft 42 are semicircular shafts, and the first butt joint shaft 31 and the second butt joint shaft 42 are mutually in butt joint to form a whole circular shaft;
the limiting mechanism 5, the limiting mechanism 5 includes extensible member 51 and spacing ring 52, extensible member 51 connects arm 2 with spacing ring 52, the axle head of extensible member 51 runs through arm 2, the internal diameter of spacing ring 52 matches with the external diameter of a whole circle axle, spacing ring 52 cover is established on a whole circle axle.
The telescopic piece 51 adopts a hydraulic telescopic cylinder, and is connected with external hydraulic equipment and control equipment when in use, so as to control the expansion and contraction adjustment of the limit ring 52;
after the limiting ring 52 is contracted, the sleeve clamp of the first butt joint shaft 31 and the second butt joint shaft 42 is separated, so that the first butt joint shaft 31 and the second butt joint shaft 42 are free to separate;
after the limiting ring 52 stretches, the sleeve can be stably clamped on the surfaces of the first butt joint shaft 31 and the second butt joint shaft 42, the firmness of installation and connection between the lower clamping plate 3 and the upper clamping plate 4 is improved, the phenomenon of looseness cannot occur during use, and the safety factor of construction is improved.
The disassembly principle is as follows:
when the clamping structure needs to be disassembled, the telescopic piece 51 is started, the telescopic piece 51 drives the limiting ring 52 to shrink, and the limiting of the first butt joint shaft 31 and the second butt joint shaft 42 is separated;
the upper clamping plate 4 rotates upwards by 90 degrees;
the upper clamping plate 4 is horizontally pushed, and the upper clamping plate 4 drives the clamping shaft 41 to move towards the opening of the mounting clamping groove 301;
the upper clamping plate 4 is pulled upwards, and the upper clamping plate 4 drives the clamping shaft 41 to be separated from the mounting clamping groove 301;
the lower clamping plate 4 is horizontally withdrawn from the track 1.
The effect is as follows:
through the lower plate 3 and the upper plate 4 that can split completely, the convenient dress card structure is installed on guide rail 1, and the installation is more nimble reliable, and the use of first butt joint axle 31 of cooperation through spacing ring 52 and second butt joint axle 42 simultaneously, the cooperation limiting plate 32 increase dress card structure and install the stability after on guide rail 1, prevent to take place not hard up, improve the factor of safety of construction.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present invention.
Claims (10)
1. The construction process for replacing the turnout by the paving machine set is characterized by comprising the following steps of:
step S1, preparation work of equipment before construction, wherein the preparation of the equipment before construction comprises the following steps: the turnout transport vehicle, the turnout spreader, the turnout transfer device and the turnout sleeper transport device, wherein the number of the turnout transport vehicles is at least 2;
step S2, pretreatment of turnout:
s2.1, pre-paving the turnout;
s2.2, transporting the turnout;
s2.3, whole group welding of turnouts:
hoisting a new turnout to a lower computer by a turnout spreader for alignment and integral welding;
s3, replacing and constructing the turnout:
the replacement construction flow is as follows:
a. constructing multiple parts of knitting components, respectively moving to a construction position, then starting to disassemble an old turnout, switching a turnout paving machine to a track belt moving mode, and preparing to lift the old turnout;
b. the switch spreader integrally lifts the old switch, and the track moves to the switch transport vehicle position to place the old switch;
c. after the old turnout is placed by the turnout paving machine, the crawler belt moves to a new turnout position, a new turnout is ready to be lifted, the excavator enters the ground to clear the ballast bed, the ballast is supplemented once, and the ballast bed is leveled;
d. the excavator is removed, and a new turnout is installed by moving the track belt of the turnout paving machine;
e. the track of the turnout spreader runs to the position of the lower computer, the lower computer is lifted, the grouped running is matched with the operation of the turnout spreader, and the lower computer is switched to a returning state;
f. the track bed arrangement, secondary ballasting, rail replacement, electric service debugging operation are started;
g. grouping and connecting, preparing for leaving a field, and finishing the replacing construction of the turnout;
the guide rail clamping device that needs to use when the installation of paver equipment is used in the construction process of changing turnout of paver group includes:
the mechanical arm and the lower clamping plate are arranged on the track, the lower clamping plate is fixedly arranged on the mechanical arm through a first butt joint shaft, a limiting plate is fixedly arranged on the lower clamping plate, the limiting plate is abutted on the track, and an installation clamping groove is formed in the lower clamping plate;
the upper clamping plate is inserted into the mounting clamping groove through a clamping shaft, the clamping shaft is clamped with the lower clamping plate through the mounting clamping groove to limit, the upper clamping plate is sleeved on the guide rail, a second butt joint shaft is fixedly arranged on the upper clamping plate, the first butt joint shaft and the second butt joint shaft are semicircular shafts, and the first butt joint shaft and the second butt joint shaft are mutually in butt joint to form a whole circular shaft;
the limiting mechanism comprises a telescopic part and a limiting ring, the telescopic part is connected with the mechanical arm and the limiting ring, the shaft end of the telescopic part penetrates through the mechanical arm, the inner diameter of the limiting ring is matched with the outer diameter of a whole circular shaft, and the limiting ring is sleeved on the whole circular shaft.
2. The construction process for replacing turnout of the replacing machine set according to claim 1, wherein the turnout pre-paving in the step S2.1 adopts a base pre-paving method, and the pre-paving is performed on a base or other places convenient to use large-scale hoisting equipment, and the turnout pre-paving is performed in a split pre-paving mode without a turnout back sleeper part.
3. The construction process for replacing turnout of the shop replacing machine set according to claim 2, wherein in the step S2.2, after the turnout is pre-paved on the foundation, the turnout is lifted from the pre-paved platform by means of the turnout shop replacing machine and is loaded onto the turnout transport vehicle, and the turnout transport vehicle is used for completing the transportation of the turnout from the pre-paved foundation to the construction site, and the transportation mode of sectionally and wholly assembling is adopted.
4. The construction process for replacing turnout of the shop replacing machine set according to claim 3, wherein in the step S2.3, when the whole set of turnout is welded, the whole set of turnout is in a segmented whole set state during transportation, and before the whole set of turnout is replaced, the whole set of turnout is formed for replacement construction, and the whole welding work of the segmented turnout is combined construction operation by means of a turnout transportation vehicle, a turnout shop replacing machine and a turnout sleeper transportation device.
5. The construction process for replacing a switch by a switch machine set according to claim 4, wherein in the step S3, the switch transporter, the switch spreader, the switch transfer device and the switch sleeper transporter enter a switch replacing construction station by adopting a grouping mode.
6. The construction process for replacing a switch in a shop replacing machine set according to claim 5, wherein in the step S3, the switch welded into the whole set enters the switch replacing construction site by using a switch transferring device.
7. The construction process for replacing turnout of the shop replacing machine set according to claim 6, wherein in the process b of the step S3, the old turnout is completely removed by the shop replacing machine, the removed old turnout is placed on the turnout transport vehicle by the shop replacing machine, the whole turnout is transported away from the construction site in a segmented manner, the turnout back sleeper portion of the removed old turnout is placed on the turnout sleeper transport device by the shop replacing machine, and the detached old turnout is transported away from the construction site.
8. The construction process for replacing a switch by a switch laying machine set according to claim 7, wherein in the process d of the step S3, the switch laying machine is used for integrally installing the new switch, and the switch laying machine loads the whole set of switches and completes the installation of the new switch by adopting a longitudinal track moving mode.
9. The construction process for replacing a switch in a railroad switch of claim 8, wherein said new switch is installed using a non-destructive clamp for the connection of rail joints.
10. The construction process for replacing turnout of a paving machine set according to claim 9, wherein in the step S3, the backfilling mode of the stone ballast is performed by an excavator.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210414067.4A CN114753194B (en) | 2022-04-18 | 2022-04-18 | Construction process for replacing turnout of paving machine set |
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| CN202210414067.4A CN114753194B (en) | 2022-04-18 | 2022-04-18 | Construction process for replacing turnout of paving machine set |
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| CN114753194B true CN114753194B (en) | 2024-02-13 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115233507B (en) * | 2022-09-21 | 2022-12-09 | 铁科（北京）轨道装备技术有限公司 | Integrated construction process for transporting, replacing and laying turnout in whole set with sleepers and train marshalling thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1598147A (en) * | 2004-09-15 | 2005-03-23 | 中铁二十五局集团第三工程有限公司 | Technology of changing railway switch construction and its equipment of changing railway switch |
| CN2721686Y (en) * | 2004-09-15 | 2005-08-31 | 中铁二十五局集团第三工程有限公司 | Self driver for replacing railway switch |
| JP2013104217A (en) * | 2011-11-14 | 2013-05-30 | Mimori Sogyo Co Ltd | Method and device for installing turnout of track rail |
| CN107130480A (en) * | 2017-06-26 | 2017-09-05 | 株洲时代电子技术有限公司 | A kind of railway switch transport vehicle |
| CN110468640A (en) * | 2019-09-09 | 2019-11-19 | 株洲时代电子技术有限公司 | A kind of rail walking apparatus and the railway switch paving including the device are changed planes |
| CN112878120A (en) * | 2019-11-29 | 2021-06-01 | 中国铁建高新装备股份有限公司 | Mechanical replacing and laying construction method for ballast turnout |
| CN113373743A (en) * | 2021-07-25 | 2021-09-10 | 宝鸡中车时代工程机械有限公司 | A dig tiny fragments of stone, coal, etc. device that is arranged in switch to change tiny fragments of stone, coal, etc. of tiny fragments of stone, coal, etc. operation of in-process |
| CN113403894A (en) * | 2021-07-25 | 2021-09-17 | 宝鸡中车时代工程机械有限公司 | Ballast replacing vehicle set for ballast replacing operation in turnout replacing process |
-
2022
- 2022-04-18 CN CN202210414067.4A patent/CN114753194B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1598147A (en) * | 2004-09-15 | 2005-03-23 | 中铁二十五局集团第三工程有限公司 | Technology of changing railway switch construction and its equipment of changing railway switch |
| CN2721686Y (en) * | 2004-09-15 | 2005-08-31 | 中铁二十五局集团第三工程有限公司 | Self driver for replacing railway switch |
| JP2013104217A (en) * | 2011-11-14 | 2013-05-30 | Mimori Sogyo Co Ltd | Method and device for installing turnout of track rail |
| CN107130480A (en) * | 2017-06-26 | 2017-09-05 | 株洲时代电子技术有限公司 | A kind of railway switch transport vehicle |
| CN110468640A (en) * | 2019-09-09 | 2019-11-19 | 株洲时代电子技术有限公司 | A kind of rail walking apparatus and the railway switch paving including the device are changed planes |
| CN112878120A (en) * | 2019-11-29 | 2021-06-01 | 中国铁建高新装备股份有限公司 | Mechanical replacing and laying construction method for ballast turnout |
| CN113373743A (en) * | 2021-07-25 | 2021-09-10 | 宝鸡中车时代工程机械有限公司 | A dig tiny fragments of stone, coal, etc. device that is arranged in switch to change tiny fragments of stone, coal, etc. of tiny fragments of stone, coal, etc. operation of in-process |
| CN113403894A (en) * | 2021-07-25 | 2021-09-17 | 宝鸡中车时代工程机械有限公司 | Ballast replacing vehicle set for ballast replacing operation in turnout replacing process |
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| CN114753194A (en) | 2022-07-15 |
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