Intelligent construction system for ballastless track in plateau ultra-long tunnel

Abstract

The utility model belongs to the technical field of track construction, and discloses an intelligent ballastless track construction system in a plateau ultra-long tunnel, which comprises a bed board pouring construction crane, four track board laying fine adjustment devices, a concrete pouring stock bin and a concrete curing folding shed, or the concrete pouring stock bin is lifted to conduct concrete pouring between the track plate and the track base plate, and the track plate laying fine adjustment devices are correspondingly installed at the four corners of the track plate so as to conduct fine adjustment on the transverse position, the longitudinal position and the vertical position of the track plate. The track plate laying fine adjustment device comprises a longitudinal adjustment assembly, a transverse adjustment assembly and a vertical adjustment assembly which are sequentially arranged from bottom to top. The concrete curing folding shed is used for conducting constant-temperature and constant-humidity curing on concrete poured between the track plate and the track base plate. The device has the advantages of simplicity and rapidness in operation, stability in hoisting, high fine adjustment precision, novel conception, constant-temperature and constant-humidity maintenance of concrete and the like.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of track construction technology, specifically relates to a kind of highland super-long tunnel internal ballastless track intelligent construction system. BACKGROUND

[0002] The current track slab construction has the following problems: (1) for ballastless track pouring construction, the conventional lifting appliance is used to grab the track slab or the lifting hole at the four corners of the stock bin, and one by one manual hooking is required, which is complicated to operate, cannot guarantee the consistency of lifting length, is prone to shaking during lifting, and the conventional lifting appliance cannot be adapted to the width of the track base plate, so the left and right positions are prone to shift during the moving process of the lifting appliance after lifting, which leads to deviation of the falling position of the track slab or the stock bin, affecting the construction progress; (2) for the curing of the poured concrete of the ballastless track, manual watering as evenly as possible is used to directly cover the film for curing, which is complicated to operate, requires multiple people to cooperate, increases labor cost, and cannot achieve constant temperature and humidity effect, the concrete curing condition is poor, the curing effect is not good, affects the quality of concrete, and leaves safety hazards; (3) the conventional lifting appliance for track slab is equipped with a measuring device for measuring and feeding back the position, so during the adjustment of the track slab laying position when the lifting appliance is lowered, the position of the gripper assembly can be adjusted according to the feedback information of the measuring device, so as to realize the fine adjustment of the track slab; but due to the linkage of the left and right grippers, the left and right sides can only be adjusted synchronously during longitudinal adjustment, so the four corners of the track slab cannot be individually and accurately controlled, and the adjustment accuracy is limited and the accuracy is not high. UTILITY MODEL CONTENTS

[0003] The utility model aims at providing a kind of highland super-long tunnel internal ballastless track intelligent construction system, lifting is convenient and fast without deviation, track slab precision is high, concrete curing effect is good, solves the problem that the conventional lifting appliance needs one by one manual hooking of lifting hole, which is complicated to operate, cannot guarantee the consistency of lifting length during lifting, is prone to shaking, the left and right positions are prone to shift during the moving process of the lifting appliance after lifting, for the curing of the poured concrete of the ballastless track, manual watering as evenly as possible is used to directly cover the film for curing, which is complicated to operate, increases labor cost, and the curing effect is poor, and the left and right grippers of the track slab lifting appliance cannot individually and accurately control the four corners of the track slab.

[0004] Therefore, the technical solution adopted by this utility model is as follows: an intelligent construction system for ballastless track in ultra-long tunnels in high-altitude areas, including a slab laying and pouring construction crane, four track slab laying and fine-tuning devices, a concrete pouring silo, and a concrete curing folding shed. The slab laying and pouring construction crane is used to lift track slabs and lay them on the track base plate, or to lift the concrete pouring silo and pour concrete between the track slab and the track base plate. The slab laying and pouring construction crane includes a movable gantry, a traction mechanism located on the upper part of the movable gantry, and a lifting and clamping mechanism connected vertically to the traction mechanism. The traction mechanism includes a traction main frame installed on the upper part of the corresponding movable gantry, and traction hydraulic cylinders symmetrically arranged on the traction main frame. The system includes symmetrically arranged steel cable limiting columns and four steel cables at the four corners of the lifting and clamping mechanism. One end of each steel cable is wound around the telescopic end of the traction hydraulic cylinder, and the other end passes over the corresponding steel cable limiting column and connects vertically downward to the corresponding lifting lugs at the four corners of the lifting and clamping mechanism. When the traction hydraulic cylinder telescopically extends or retracts, the lifting and clamping mechanism is raised and lowered horizontally by the synchronous pulling of the four steel cables. The track slab laying fine-tuning device is installed at the four corners of the track slab to finely adjust the horizontal, vertical, and lateral positions of the track slab. The track slab laying fine-tuning device includes a longitudinal adjustment component, a transverse adjustment component, and a vertical adjustment component arranged sequentially from bottom to top. The concrete curing folding shed is used for constant temperature and humidity curing of the concrete poured between the track slab and the track base plate.

[0005] As a preferred embodiment of the above solution, the lifting and clamping mechanism includes a lifting main frame, a clamping hydraulic cylinder extending horizontally in the middle, clamping connecting rods symmetrically arranged on the left and right, and clamping seats that are mirror-symmetrical on the left and right and connected to the corresponding clamping connecting rods. The two clamping connecting rods are hinged to both ends of the clamping hydraulic cylinder through a "V"-shaped hydraulic cylinder connecting frame. When the two ends of the clamping hydraulic cylinder extend and retract outward synchronously, the angle of the "V"-shaped hydraulic cylinder connecting frame increases or decreases, causing the two clamping connecting rods to move closer or further away, thereby causing the clamping seats to simultaneously loosen outward or clamp inward. The clamping and loosening are automatically controlled, the operation is simple and quick, and the clamping is stable.

[0006] More preferably, the mobile gantry includes telescopic columns at the four corners, traction support frames at the four corners overlapping the upper part of the telescopic columns, and roller assemblies installed at the bottom of the telescopic columns. The roller assembly includes a roller box, movable rollers located inside the roller box, a drive motor that provides driving force for the movable rollers, and guide limiting wheels located outside the roller box and sliding along the side wall of the track base plate. The rollers are automatically moved by the drive motor, which is simple to operate. Furthermore, the guide limiting wheels achieve lateral limitation of the entire crane, effectively preventing deviation during the crane's movement.

[0007] The front of the traction support frame is equipped with a cable storage coil, and the rear is equipped with a hydraulic station. The telescopic column consists of two interlocking square columns, with the upper column equipped with a telescopic hydraulic cylinder, thereby enabling the overall lifting and lowering of the traction support frame and facilitating obstacle clearance. The two telescopic columns located on the left or right side are equipped with sliding groove supports. The lifting main frame is equipped with a telescopic offset adjustment component corresponding to the sliding groove support. The outer end of the telescopic offset adjustment component is equipped with a limiting roller that can slide along the inner groove of the sliding groove support. Through the guidance and offset compensation of the telescopic offset adjustment component, the initial laying accuracy of the slab is improved, effectively preventing the swaying of the steel cable during lifting from causing the lifted object to sway. The structural design is ingenious.

[0008] The retractable offset adjustment component includes a connector, an anti-sway hydraulic cylinder, and a foldable protective cover. The connector is installed on the main lifting frame and extends horizontally outward. The piston end of the anti-sway hydraulic cylinder is installed at one end of the foldable protective cover via a pin, and the cylinder end is installed at the other end of the foldable protective cover via a pin. The inner end of the foldable protective cover is fixed to the connector. The lifting mechanism can be flexibly adjusted without offsetting, and the structural design is reasonable.

[0009] More preferably, the clamping seat includes a horizontal connecting rod that is spaced apart from the front and rear and connected to the clamping connecting rod, and a lifting frame that is connected to the outer end of the horizontal connecting rod. The main lifting frame is provided with a through hole and a sleeve for the horizontal connecting rod to pass through. The lifting frame is in the shape of an "L" and is used to lift the left and right sides of the casting silo or the left and right sides of the track plate. The structure is reasonably designed and effectively ensures the horizontal lifting of the object.

[0010] More preferably, the cable limiting and winding column includes a vertical cable adjusting disc located at the corner, a longitudinal cable adjusting disc located at the rear corresponding to the telescopic end of the traction hydraulic cylinder, and a cable guiding disc located in the middle. One end of each of the two cables is fixed to the telescopic end of the traction hydraulic cylinder, and the other end passes through the longitudinal cable adjusting disc and the cable guiding disc in sequence before being introduced into the vertical cable adjusting disc at the corresponding corner. Both the longitudinal cable adjusting disc and the cable guiding disc adopt two layers of coils, so as to respectively place two cables. The structural design is reasonable and ensures the synchronous traction of the four cables, thereby ensuring the horizontal lifting and lowering of the lifting and clamping mechanism.

[0011] More preferably, the longitudinal adjustment assembly includes a longitudinal slide base, a longitudinal slider that slides along the longitudinal slide base, and a longitudinal drive member that pushes the longitudinal slider to slide. The lateral adjustment assembly includes a lateral slide base mounted on the longitudinal slider, a lateral slider that slides along the lateral slide base, and a lateral drive member that pushes the lateral slider to slide. The vertical adjustment assembly includes a vertical slide base mounted on the lateral slider, a vertical slider that slides vertically along the vertical slide base, and a vertical drive member that drives the vertical slider to rise and fall. The vertical slider has a mounting plate threadedly connected to the track plate on the side near the track plate, so that it can be installed at the four corners of the track plate.

[0012] The vertical slider of the vertical adjustment component has a mounting plate that is threadedly connected to the track plate on the side near the track plate. Since there is a 10cm concrete filling gap between the track plate and the track base plate, the connection between the track plate and the vertical slider can effectively ensure that the track plate does not directly contact the track base plate. The installation positions of the adjustment components do not conflict with each other and are reasonably arranged.

[0013] Preferably, the longitudinal drive component, the transverse drive component, and the vertical drive component all adopt screw motor reducers, which is a reasonable selection; the bottom surface of the longitudinal slide base is provided with a serrated anti-slip structure, and the front and rear ends near the bottom edge are provided with bolt mounting seats for connecting to the track base plate; the middle of the longitudinal slide base is provided with a mounting opening for the screw of the longitudinal drive component to pass through longitudinally; the bottom of the longitudinal slide is installed on the screw nut of the longitudinal drive component to prevent floating. The structural design is reasonable, thereby effectively avoiding the situation where the device is pushed in the opposite direction during fine adjustment, which would affect the adjustment accuracy.

[0014] The longitudinal slide table is provided with a positioning groove that fits into the base of the transverse slide table, ensuring the installation accuracy of the transverse slide table and improving the overall fine adjustment accuracy. The base of the transverse slide table is arranged in a mirror symmetrical manner from front to back, and a space is left in the middle for the lead screw of the transverse drive component to pass through. The bottom of the transverse slider is installed on the lead screw nut of the transverse drive component. The structure is reasonably designed and effectively avoids conflicts in the installation positions of the components.

[0015] Both the longitudinal and transverse sliders have dovetail groove structures at their bottoms, which are correspondingly and fit into the longitudinal and transverse slide bases, thereby ensuring the accuracy and stability of longitudinal and transverse fine-tuning.

[0016] The vertical slide base is provided with a mounting cavity through which the lead screw of the vertical drive component passes vertically, and the vertical slider is mounted on the lead screw nut of the vertical drive component, which is a reasonable structure.

[0017] Preferably, the concrete curing folding shed includes a foldable frame, a constant temperature and humidity curing mechanism installed on the foldable frame, and a tarpaulin erected on the foldable frame. The foldable frame includes several sets of driven traveling gantries arranged in parallel, an "X"-shaped connecting rod connecting adjacent driven traveling gantries, and a traction active traveling gantry driving the driven traveling gantries. The constant temperature and humidity curing mechanism includes temperature and humidity sensors, cooling and humidifying pipelines, heating and humidifying pipelines, a water tank, and an electric heating steam generator. The temperature and humidity sensors are distributed at multiple points within the folding frame. The traction active traveling gantry includes a gantry body, roller mounting seats symmetrically located at the bottom of the gantry body, and drive wheels installed within the roller mounting seats. The drive motor that drives the active wheel to move, the auxiliary wheels installed at the front and rear ends of the roller mounting base, and the guide wheels installed at the bottom of the roller mounting base and rolling along the side wall of the track base plate. The bottom of the driven traveling gantry of the adjacent traction active traveling gantry is fixed on the roller mounting base. The bottom of the other driven traveling gantry except the adjacent traction active traveling gantry is provided with driven traveling rollers. When the traction active traveling gantry moves along the track base plate, it drives several driven traveling gantry to move away from or closer to each other, thereby realizing the unfolding and folding of the foldable canopy.

[0018] A constant temperature and humidity curing mechanism is used to achieve temperature and humidity control for concrete curing. The water tank temperature is adjusted based on data from temperature and humidity sensors, and the system selects between cooling and heating / humidifying pipelines for water spraying. The temperature and humidity inside the curing shed are monitored in real time, and the system determines whether heating or additional water is needed based on the measured temperature data. This ensures that the temperature and humidity inside the tarpaulin are always maintained within the predetermined curing standard range, and the water spray volume is flexibly adjusted to achieve constant temperature and humidity curing of concrete, resulting in good curing effect and reduced labor and material costs.

[0019] The drive motor of the traction active traveling gantry provides the power for movement. When the traction active traveling gantry moves along the track base plate, it can drive several driven traveling gantry to move away from or closer to each other, thereby realizing the unfolding and folding of the foldable canopy. After unfolding, the ballastless track is maintained. During the maintenance process, the distance between the support frames can be adjusted according to the needs of different working spaces, so that the entire device can adapt to working environments of various sizes. The driven traveling gantry are connected by "X"-shaped connecting rods. The distance between adjacent traveling gantry is adjusted by changing the included angle of the "X"-shaped connecting rods, and the structure is interlocked.

[0020] More preferably, the heating and humidifying pipeline consists of two symmetrically arranged pipes connected to the outlet of the electric heating steam generator. The heating and humidifying pipeline is provided with heating nozzles fixed on the driven traveling gantry at intervals. The cooling and humidifying pipeline is installed longitudinally in the center on the top of the driven traveling gantry and is provided with cooling nozzles at intervals. The water tank outlet pipe is connected to the cooling and humidifying pipeline and the electric heating steam generator respectively. Steam is sprayed evenly from the left and right sides of the heating and humidifying pipeline for rapid heating and humidification, and water is sprayed from the middle cooling and humidifying pipeline for rapid cooling and humidification.

[0021] The water tank is equipped with a water level sensor, an electric heating rod, and a temperature sensor. The rear side wall of the water tank has symmetrical cleaning ports on the left and right sides, and a liquid level display window is located on the right side of the rear side wall. The structure is reasonably designed, which makes it convenient to flexibly adjust the temperature inside the water tank according to needs.

[0022] Both the water tank and the electric steam generator are installed on the main body of the gantry, making reasonable use of space and avoiding interference from intersecting wiring harnesses.

[0023] The outlet end of the electric heating steam generator is equipped with a solenoid valve, a pressure reducing valve, a filter, a high-pressure pump, and a solenoid valve in sequence along the steam delivery direction. The equipment is reasonably arranged and the water spray volume is easy to adjust.

[0024] The tarpaulin is made of heat-insulating plastic material, which is a reasonable material selection.

[0025] More preferably, the casting silo includes a silo body and lifting support plates located on the left and right sides of the silo body. The bottom of the silo body is provided with an inverted "V"-shaped material distribution ramp and a plane that symmetrically connects the left and right material distribution ramps. The plane is provided with a discharge pipe, and the discharge pipe is provided with a flow sensor. The material distribution ramp ensures that the flow of concrete on the left and right sides is approximately the same, thereby ensuring the casting quality and avoiding the situation where concrete overflows on one side and the concrete cavity on the other side occurs.

[0026] The top edge of the silo is equipped with a horizontally extending baffle to prevent concrete from spilling out; the lifting support plate is equipped with reinforcing ribs at intervals in front and behind, making the structure reasonable.

[0027] The beneficial effects of this utility model are:

[0028] (1) Compared with the current conventional lifting tools that require manual hooking of each lifting hole, this solution uses a crane specially designed for ballastless track slab pouring construction. The moving gantry can move along the track base plate, ensuring that there will be no deviation in the lifting tool. When the two ends of the clamping hydraulic cylinder of the lifting clamping mechanism extend and retract synchronously outward, compared with the current lifting tools that cannot guarantee the same lifting length, the lifting clamping mechanism of this solution uses four steel cables to pull synchronously when extending and retracting, so as to make the lifting clamping mechanism rise and fall horizontally, ensuring that the horizontal movement is not easy during lifting, and the structure is interlocked.

[0029] (2) Compared with the current track slab hangers, which can only move synchronously along the track when adjusting the left and right grippers, this solution uses fine adjustment devices installed at the four corners of the track slab. Through the longitudinal adjustment component, the horizontal adjustment component and the vertical adjustment component, the horizontal, longitudinal and vertical fine adjustment of each corner of the track slab can be achieved separately. This effectively avoids the situation where the fine adjustment is low due to the need for synchronous adjustment of the left and right sides. The fine adjustment accuracy is high, the concept is novel and the design is ingenious.

[0030] (3) Compared with the current method of manually sprinkling water as evenly as possible and then covering it with a film for curing the concrete poured for ballastless track, this solution uses a concrete curing folding shed to directly cover the concrete poured on the track base plate. This can be used to ensure the early and mid-term strength of the ballastless track concrete construction and provide a constant temperature and humidity curing environment.

[0031] In summary, this utility model has the advantages of simple and quick operation, stable lifting, high precision adjustment, novel design, and constant temperature and humidity curing of concrete. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the structure of this utility model.

[0033] Figure 2 A structural diagram of the crane used for slab laying and pouring construction.

[0034] Figure 3 This is a structural schematic diagram of a movable gantry.

[0035] Figure 4 This is a schematic diagram of the traction mechanism.

[0036] Figure 5 This is a schematic diagram of the lifting and clamping mechanism.

[0037] Figure 6 This is a schematic diagram of the cross-section of the lifting and clamping mechanism.

[0038] Figure 7 This is a cross-sectional view of the retractable offset adjustment component.

[0039] Figure 8 This is a structural diagram of a casting silo.

[0040] Figure 9 A schematic diagram of the installation of a fine-tuning device for laying track slabs.

[0041] Figure 10 A schematic diagram of the structure for installing a fine-tuning device for the track slab.

[0042] Figure 11 A structural schematic diagram from another perspective of the fine-tuning device for laying track slabs.

[0043] Figure 12This is a structural diagram of a folding shed for concrete curing.

[0044] Figure 13 This is a front view of a concrete curing folding shed.

[0045] Figure 14 for Figure 13 Side view (not fully displayed). Detailed Implementation

[0046] The present invention will be further described below with reference to embodiments and accompanying drawings:

[0047] Combination Figure 1 — Figure 14 As shown, an intelligent construction system for ballastless track in ultra-long tunnels in high-altitude areas consists of a slab laying and pouring crane (a), four track slab laying and fine-tuning devices (b), a concrete pouring silo (4), and a concrete curing folding shed (c).

[0048] Crane A for slab laying and pouring is used to lift the track slab 6 and lay it on the track base plate 5, or to lift the concrete pouring hopper 4 and pour concrete between the track slab 6 and the track base plate 5.

[0049] The slab pouring construction crane a consists of a movable gantry a1, a traction mechanism a2 located on the upper part of the movable gantry a1, and a lifting and clamping mechanism a3 connected vertically to the traction mechanism a2.

[0050] The traction mechanism a2 consists of a traction main frame a21 installed on the upper part of the corresponding moving gantry a1, traction hydraulic cylinders a22 symmetrically installed on the traction main frame a21, steel cable limiting winding columns a23 symmetrically arranged on the left and right, and steel cables a24 at the four corners of the four traction lifting clamping mechanisms a3.

[0051] One end of the steel cable a24 is wrapped around the telescopic end of the traction hydraulic cylinder a22, and the other end passes over the corresponding steel cable limiting column a23 and is vertically downward connected to the corresponding lifting lugs at the four corners of the lifting clamping mechanism a3.

[0052] When the hydraulic cylinder a22 extends or retracts, the lifting clamping mechanism a3 is raised or lowered horizontally by the synchronous pulling of the four steel cables a24.

[0053] The lifting and clamping mechanism a3 consists of a lifting main frame a31, a clamping hydraulic cylinder a32 extending horizontally in the middle, clamping connecting rods a33 arranged symmetrically on the left and right, and clamping seats a34 that are mirror-symmetrical on the left and right and connected to the corresponding clamping connecting rods a33.

[0054] The two clamping connecting rods a33 are hinged to both ends of the clamping hydraulic cylinder a32 via a "V"-shaped hydraulic cylinder connecting bracket a35.

[0055] When the two ends of the clamping hydraulic cylinder a32 extend and retract outward synchronously, the angle of the "V"-shaped cylinder connecting frame a35 increases or decreases, causing the two clamping connecting rods a33 to move closer or further away, thereby causing the clamping seat a34 to simultaneously loosen outward or clamp inward.

[0056] The mobile gantry a1 consists of telescopic columns a11 located at the four corners, tension support frames a12 that overlap the upper part of the telescopic columns a11 at the four corners, and roller assemblies a13 installed at the bottom of the telescopic columns a11.

[0057] The roller assembly a13 consists of a roller box a131, a movable roller a132 located inside the roller box a131, a crane moving drive motor a133 that provides moving driving force for the movable roller a132, and a guide limiting wheel a134 located outside the roller box a131 and sliding along the side wall of the track base plate 5.

[0058] The cable storage coil a121 is installed on the front side of the traction support frame a12, and the hydraulic station a122 is installed on the rear side.

[0059] The telescopic column a11 is made of two square columns that are fitted together inside and out, and the upper square column is equipped with a telescopic hydraulic cylinder a14, so as to realize the overall lifting and lowering of the support frame a12.

[0060] Two telescopic columns a11 located on the same left or right side are equipped with sliding brackets a15.

[0061] The lifting main frame a31 is equipped with a telescopic offset adjustment component a311 on the corresponding slide bracket a15.

[0062] The outer end of the retractable offset adjustment component a311 is equipped with a limiting roller a312 that can slide along the inner groove of the slide bracket a15.

[0063] The retractable offset adjustment component a311 consists of a connector 311a, an anti-sway hydraulic cylinder 311b, and a foldable protective cover 311c.

[0064] The connector 311a is installed on the main lifting frame a31 and extends horizontally outward.

[0065] The piston end of the anti-sway hydraulic cylinder 311b is mounted on one end of the foldable protective cover 311c via a pin, and the cylinder end is mounted on the other end of the foldable protective cover 311c via a pin.

[0066] The inner end of the foldable protective cover 311c is fixed to the connector 311a.

[0067] The clamping seat a34 consists of a horizontal connecting rod a341 that is spaced apart from the front and rear and connected to the clamping connecting rod a33, and a lifting frame a342 that is connected to the outer end of the horizontal connecting rod a341.

[0068] The main lifting frame a31 is provided with through holes and sleeves for the horizontal connecting rod a341 to pass through.

[0069] The lifting frame a342 has an overall "L" shape and is used to lift the left and right sides of the pouring silo a4 or the left and right sides of the track plate.

[0070] The cable limiting winding column a23 consists of a vertical cable adjusting disc a231 located at the corner, a longitudinal cable adjusting disc a232 located at the telescopic end of the rear corresponding to the traction hydraulic cylinder a22, and a cable guiding disc a233 located in the middle.

[0071] Two steel cables a24 are fixed at one end to the telescopic end of the traction hydraulic cylinder a22, and the other end passes through the longitudinal adjustment disc a232 and the directional disc a233 in sequence before being introduced into the vertical adjustment disc a231 at the corresponding corner.

[0072] Both the longitudinal adjustment disc a232 and the cable distribution disc a233 use upper and lower two-layer discs to house two cables a24 respectively.

[0073] The track slab laying fine adjustment device b is installed at the four corners of the track slab 6 to finely adjust the horizontal, vertical and vertical positions of the track slab 6.

[0074] The track slab laying fine-tuning device b consists of a longitudinal adjustment component b1, a transverse adjustment component b2, and a vertical adjustment component b3 arranged sequentially from bottom to top.

[0075] The longitudinal adjustment assembly b1 consists of a longitudinal slide base b11, a longitudinal slider b12 that slides along the longitudinal slide base b11, and a longitudinal drive component b13 that pushes the longitudinal slider b12 to slide.

[0076] The lateral adjustment assembly b2 consists of a lateral slide base b21 mounted on the longitudinal slider b12, a lateral slider b22 that slides along the lateral slide base, and a lateral drive component b23 that pushes the lateral slider b22 to slide.

[0077] The vertical adjustment assembly b3 consists of a vertical slide base b31 mounted on the horizontal slider b22, a vertical slider b32 that slides vertically along the vertical slide base b31, and a vertical drive component b33 that drives the vertical slider b32 to rise and fall.

[0078] The vertical slider b32 has a mounting plate b321 that is threadedly connected to the track plate 6 on the side near the track plate 6, so that it can be installed at the four corners of the track plate 6.

[0079] The longitudinal drive component b13, the transverse drive component b23, and the vertical drive component b33 all use a ball screw motor reducer.

[0080] The bottom surface of the longitudinal slide base b11 is provided with a serrated anti-slip structure, and the front and rear ends near the bottom edge are provided with bolt mounting seats b111 that are connected to the track base plate.

[0081] The longitudinal slide base b11 has a mounting opening in the middle for the lead screw of the longitudinal drive component b13 to pass through longitudinally.

[0082] The bottom of the longitudinal slide table b12 is mounted on the lead screw nut of the longitudinal drive component b13.

[0083] The longitudinal slide table b12 is provided with a positioning groove b121 that fits into the transverse slide table base b21.

[0084] The horizontal slide base b21 is arranged in a mirror-symmetrical manner from front to back, and a space is left in the middle for the lead screw of the horizontal drive component b23 to pass through.

[0085] The bottom of the horizontal slider b22 is mounted on the lead screw nut of the horizontal drive component b23.

[0086] Both the vertical slider b12 and the horizontal slider b22 have dovetail groove structures at their bottoms, which are correspondingly fitted and connected to the vertical slide base b11 and the horizontal slide base b21.

[0087] The vertical slide base b31 is provided with a mounting cavity through which the lead screw of the vertical drive member b33 passes vertically, and the vertical slider b32 is mounted on the lead screw nut of the vertical drive member b33.

[0088] The concrete curing folding shed c is used to maintain constant temperature and humidity for the concrete poured between the track slab 6 and the track base slab 5.

[0089] The concrete curing folding shed c consists of a foldable shed frame, a constant temperature and humidity curing mechanism c1 installed on the foldable shed frame, and a tarpaulin erected on the foldable shed frame.

[0090] The foldable canopy consists of several sets of driven traveling gantry c2 arranged in parallel front to back, an "X"-shaped connecting rod c3 connecting adjacent driven traveling gantry c2, and a traction active traveling gantry c4 that drives the driven traveling gantry c2.

[0091] The constant temperature and humidity maintenance mechanism c1 consists of a temperature and humidity sensor, a cooling and humidifying pipeline c11, a heating and humidifying pipeline c12, a water tank c13, and an electric heating steam generator c14.

[0092] Temperature and humidity sensors are installed at multiple points inside the folding frame.

[0093] The heating and humidifying pipeline C12 consists of two symmetrically arranged pipes, which are connected to the outlet end of the electric heating steam generator C14.

[0094] The heating and humidifying pipeline c12 is equipped with heating nozzles c121 fixed on the driven traveling gantry c2 at intervals.

[0095] The cooling and humidifying pipeline c11 is installed longitudinally in the center on top of the driven traveling gantry c2, and cooling nozzles are installed at intervals.

[0096] The water outlet pipe of water tank C13 is connected to cooling and humidifying pipe C11 and electric heating steam generator C14 respectively.

[0097] The water tank C13 has a built-in water level sensor C131, an electric heating rod C132, and a temperature sensor C133.

[0098] The water tank c13 has symmetrical cleaning ports c134 on the left and right sides of the rear side wall.

[0099] A liquid level display window, c135, is located on the right side of the rear wall of water tank c13.

[0100] The water tank C13 and the electric heating steam generator C14 are both installed on the gantry body C41.

[0101] The outlet end of the electric heating steam generator C14 is equipped with, in sequence along the steam delivery direction, a solenoid valve C141, a pressure reducing valve C142, a filter C143, a high-pressure pump C144, and a solenoid valve C145.

[0102] The tarpaulin is preferably made of heat-insulating plastic material.

[0103] The traction active traveling gantry c4 consists of a gantry body c41, roller mounting seats c42 symmetrically located at the bottom of the gantry body c41, a drive wheel c43 installed in the roller mounting seat c42, a car moving drive motor c44 that drives the drive wheel c43 to move, auxiliary wheels c45 installed at the front and rear ends of the roller mounting seat c42, and guide wheels c46 installed at the bottom of the roller mounting seat c42 and rolling along the side wall of the track base plate 5.

[0104] The bottom of the driven traveling gantry c2 of the adjacent traction active traveling gantry c4 is fixed on the roller mounting seat c42. The bottom of the other driven traveling gantry c2, except for the adjacent traction active traveling gantry c4, is provided with driven traveling rollers c21.

[0105] When the traction active traveling gantry c4 moves along the track base plate 5, it drives several driven traveling gantry c2 to move away from or closer to each other, thereby realizing the unfolding and folding of the foldable canopy.

[0106] The casting silo 4 consists of a silo body 41 and lifting support plates 42 located on the left and right sides of the silo body 41.

[0107] The bottom of the silo body 41 is provided with an inverted "V" shaped material distribution ramp 411 and a plane 412 that symmetrically connects the material distribution ramp 411 on the left and right.

[0108] The plane 412 is provided with a discharge pipe 413.

[0109] A flow sensor is installed inside the discharge pipe 413.

[0110] The top edge of the compartment 41 is provided with a baffle 414 that extends horizontally inward.

[0111] The lifting support plate 42 is provided with reinforcing ribs 421 at intervals before and after.

[0112] Crane a is used to lift the track slab 6 during the slab laying and pouring construction and move it along the track base plate 5 to the slab laying area for lowering. Before lowering, four track slab laying fine adjustment devices b are installed on the left and right sides of the track slab 6 near the corners.

[0113] After the track slab 6 is lowered, prisms 7 are installed on the sleepers near the four corners, and a total station 8 is installed in front of it. With the cooperation of the total station 8 and prisms 7, the position of the track slab 6 is adjusted by the track slab fine-tuning device b until the design requirements are met.

[0114] First, burlap sacks are placed symmetrically between the track slab 6 and the track base plate 5. Then, the concrete pouring hopper 4 is lifted by the slab laying and pouring construction crane a to simultaneously fill the two burlap sacks between the laid track slab 6 and the track base plate 5 with concrete.

[0115] The mobile concrete curing folding shed is deployed and the poured concrete is cured under constant temperature and humidity. The above steps are repeated until the entire ballastless track construction is completed.

Claims

1. An intelligent construction system for ballastless track in ultra-long tunnels in high-altitude areas, characterized in that: The system includes a slab laying and pouring construction crane (a), four track slab laying and fine-tuning devices (b), a concrete pouring silo (4), and a concrete curing folding shed (c). The slab laying and pouring construction crane (a) is used to lift the track slab (6) and lay it on the track base plate (5), or to lift the concrete pouring silo (4) and pour concrete between the track slab (6) and the track base plate (5). The slab laying and pouring construction crane (a) includes a movable gantry (a1), a traction mechanism (a2) located on the upper part of the movable gantry (a1), and a lifting clamping mechanism (a3) ​​connected vertically to the traction mechanism (a2). The traction mechanism (a2) includes a traction main frame (a21) installed on the upper part of the corresponding movable gantry (a1), traction hydraulic cylinders (a22) symmetrically arranged on the traction main frame (a21), steel cable limiting winding columns (a23) symmetrically arranged on the left and right, and four... The steel cables (a24) at the four corners of the lifting and clamping mechanism (a3) ​​are pulled. One end of the steel cable (a24) is wrapped around the telescopic end of the pulling hydraulic cylinder (a22), and the other end passes around the corresponding steel cable limiting column (a23) and is vertically connected to the corresponding lifting lugs at the four corners of the lifting and clamping mechanism (a3). When the pulling hydraulic cylinder (a22) telescopically extends and retracts, the lifting and clamping mechanism (a3) ​​is pulled horizontally and vertically by the four steel cables (a24). The track slab laying fine adjustment device (b) is installed at the four corners of the track slab (6) to finely adjust the horizontal, vertical and vertical positions of the track slab (6). The track slab laying fine adjustment device (b) includes a longitudinal adjustment component (b1), a horizontal adjustment component (b2) and a vertical adjustment component (b3) arranged sequentially from bottom to top. The concrete curing folding shed (c) is used to perform constant temperature and humidity curing of the concrete poured between the track slab (6) and the track base plate (5).

2. The intelligent construction system for ballastless track in ultra-long high-altitude tunnels according to claim 1, characterized in that: The lifting and clamping mechanism (a3) ​​includes a lifting main frame (a31), a clamping hydraulic cylinder (a32) extending horizontally in the middle, clamping connecting rods (a33) arranged symmetrically on the left and right, and clamping seats (a34) that are mirror-symmetrical on the left and right and connected to the corresponding clamping connecting rods (a33). The two clamping connecting rods (a33) are hinged to both ends of the clamping hydraulic cylinder (a32) through a "V"-shaped hydraulic cylinder connecting frame (a35). When the two ends of the clamping hydraulic cylinder (a32) extend and retract outward synchronously, the angle of the "V"-shaped hydraulic cylinder connecting frame (a35) increases or decreases, causing the two clamping connecting rods (a33) to move closer or further away, thereby causing the clamping seats (a34) to simultaneously loosen outward or clamp inward.

3. The intelligent construction system for ballastless track in ultra-long high-altitude tunnels according to claim 2, characterized in that: The mobile gantry (a1) includes telescopic columns (a11) located at the four corners, traction support frames (a12) that overlap the upper part of the telescopic columns (a11) at the four corners, and a roller assembly (a13) installed at the bottom of the telescopic columns (a11). The roller assembly (a13) includes a roller box (a131), movable rollers (a132) located in the roller box (a131), and a crane movement drive that provides movement driving force for the movable rollers (a132). The motor (a133) and the guide limit wheel (a134) located outside the roller box (a131) and sliding along the side wall of the track base plate (5); the cable storage coil (a121) is installed on the front side of the traction support frame (a12) and the hydraulic station (a122) is installed on the rear side; the telescopic column (a11) adopts two sections of inner and outer square column, and the upper section of square column is equipped with a telescopic hydraulic cylinder (a14), thereby realizing the overall traction support frame (a12). Lifting and lowering; the two telescopic columns (a11) located on the same left or right side are equipped with slide rail brackets (a15), and the lifting main frame (a31) is equipped with a telescopic offset adjustment component (a311) corresponding to the slide rail bracket (a15). The outer end of the telescopic offset adjustment component (a311) is equipped with a limiting roller (a312) that can slide along the slide rail inside the slide rail bracket (a15); the telescopic offset adjustment component (a311) includes a connecting component (311a). The anti-sway hydraulic cylinder (311b) and the foldable protective cover (311c) are provided. The connecting piece (311a) is installed on the main lifting frame (a31) and extends horizontally outward. The piston end of the anti-sway hydraulic cylinder (311b) is installed at one end of the foldable protective cover (311c) by a pin, and the cylinder end is installed at the other end of the foldable protective cover (311c) by a pin. The inner end of the foldable protective cover (311c) is fixed on the connecting piece (311a).

4. The intelligent construction system for ballastless track in ultra-long tunnels in high-altitude areas according to claim 2, characterized in that: The clamping seat (a34) includes a horizontal connecting rod (a341) that is connected to the clamping connecting rod (a33) at intervals in front and behind, and a lifting frame (a342) that is connected to the outer end of the horizontal connecting rod (a341). The lifting main frame (a31) is provided with a through hole and a sleeve for the horizontal connecting rod (a341) to pass through. The lifting frame (a342) is generally in the shape of an "L" and is used to lift the left and right sides of the casting silo (a4) or the left and right sides of the track plate.

5. The intelligent construction system for ballastless track in ultra-long high-altitude tunnels according to claim 1, characterized in that: The cable limiting and winding column (a23) includes a vertical cable adjusting disc (a231) located at the corner, a longitudinal cable adjusting disc (a232) located at the rear corresponding to the telescopic end of the traction hydraulic cylinder (a22), and a cable guiding disc (a233) located in the middle. One end of each of the two cables (a24) is fixed to the telescopic end of the traction hydraulic cylinder (a22), and the other end passes through the longitudinal cable adjusting disc (a232) and the cable guiding disc (a233) in sequence before being introduced into the vertical cable adjusting disc (a231) at the corresponding corner. Both the longitudinal cable adjusting disc (a232) and the cable guiding disc (a233) adopt two layers of coils, so as to respectively accommodate the two cables (a24).

6. The intelligent construction system for ballastless track in ultra-long high-altitude tunnels according to claim 1, characterized in that: The longitudinal adjustment assembly (b1) includes a longitudinal slide base (b11), a longitudinal slider (b12) that slides along the longitudinal slide base (b11), and a longitudinal drive member (b13) that pushes the longitudinal slider (b12) to slide. The transverse adjustment assembly (b2) includes a transverse slide base (b21) mounted on the longitudinal slider (b12), a transverse slider (b22) that slides along the transverse slide base, and a transverse drive member (b23) that pushes the transverse slider (b22) to slide. The vertical adjustment assembly (b3) includes a vertical slide base (b31) mounted on the transverse slider (b22), a vertical slider (b32) that slides vertically along the vertical slide base (b31), and a vertical drive member (b33) that drives the vertical slider (b32) to rise and fall. The vertical slider (b32) has a mounting plate (b321) threadedly connected to the track plate (6) on the side near the track plate (6), so that it can be installed at the four corners of the track plate (6).

7. The intelligent construction system for ballastless track in ultra-long high-altitude tunnels according to claim 6, characterized in that: The longitudinal drive component (b13), transverse drive component (b23), and vertical drive component (b33) all employ screw motor reducers. The bottom surface of the longitudinal slide base (b11) is provided with a serrated anti-slip structure, and bolt mounting seats (b111) for connection to the track base plate are located near the bottom edges at both ends. The center of the longitudinal slide base (b11) has a mounting opening for the longitudinal screw of the longitudinal drive component (b13) to pass through longitudinally. The bottom of the longitudinal slide (b12) is mounted on the screw nut of the longitudinal drive component (b13). The longitudinal slide (b12) has a positioning groove (b121) that mates with the transverse slide base (b21). The transverse slide base (b21) is arranged symmetrically in front and behind, and has a space in the middle for the lead screw of the transverse drive member (b23) to pass through. The bottom of the transverse slider (b22) is installed on the lead screw nut of the transverse drive member (b23). The bottom of the longitudinal slider (b12) and the transverse slider (b22) are provided with dovetail groove structures, which are correspondingly fitted and connected to the longitudinal slide base (b11) and the transverse slide base (b21). The vertical slide base (b31) is provided with a mounting cavity for the lead screw of the vertical drive member (b33) to pass through vertically. The vertical slider (b32) is installed on the lead screw nut of the vertical drive member (b33).

8. The intelligent construction system for ballastless track in ultra-long tunnels in high-altitude areas according to claim 1, characterized in that: The concrete curing folding shed (c) includes a foldable shed frame, a constant temperature and humidity curing mechanism (c1) installed on the foldable shed frame, and a tarpaulin erected on the foldable shed frame. The foldable shed frame includes several sets of driven traveling gantry frames (c2) arranged in parallel, "X"-shaped connecting rods (c3) connecting adjacent driven traveling gantry frames (c2), and a traction active traveling gantry frame (c4) driving the driven traveling gantry frames (c2). The constant temperature and humidity curing mechanism (c1) includes a temperature and humidity sensor, a cooling and humidifying pipeline (c11), a heating and humidifying pipeline (c12), a water tank (c13), and an electric heating steam generator (c14). The temperature and humidity sensor is arranged at multiple points inside the folding shed frame. The traction active traveling gantry frame (c4) includes a gantry body (c41) and roller mounting seats (c41) symmetrically located at the bottom of the gantry body (c41). 42) The drive wheel (c43) installed in the roller mounting base (c42), the shed moving drive motor (c44) that drives the drive wheel (c43) to move, the auxiliary wheels (c45) installed at the front and rear ends of the roller mounting base (c42), and the guide wheel (c46) installed at the bottom of the roller mounting base (c42) and rolling along the side wall of the track base plate (5). The bottom of the driven gantry (c2) of the adjacent traction drive gantry (c4) is fixed on the roller mounting base (c42). The bottom of the other driven gantry (c2) except the adjacent traction drive gantry (c4) is provided with driven gantry rollers (c21). When the traction drive gantry (c4) moves along the track base plate (5), it drives several driven gantry (c2) to move away from or closer to each other, thereby realizing the unfolding and folding of the foldable shed.

9. The intelligent construction system for ballastless track in ultra-long high-altitude tunnels according to claim 8, characterized in that: The heating and humidifying pipeline (c12) consists of two symmetrically arranged pipes connected to the outlet of the electric steam generator (c14). Heating nozzles (c121) fixed to the driven traveling gantry (c2) are spaced apart on the heating and humidifying pipeline (c12). The cooling and humidifying pipeline (c11) is centrally and longitudinally installed on the top of the driven traveling gantry (c2), and cooling nozzles are spaced apart on it. The water outlet pipe of the water tank (c13) is connected to both the cooling and humidifying pipeline (c11) and the electric steam generator (c14). The water tank (c13) contains a water level sensor (c131) and an electric heating rod (c14). 132) Temperature sensor (c133); the water tank (c13) has symmetrical cleaning ports (c134) on the left and right sides of the rear side wall; the water tank (c13) has a liquid level display window (c135) on the right side of the rear side wall; the water tank (c13) and the electric heating steam generator (c14) are both installed on the gantry body (c41); the outlet end of the electric heating steam generator (c14) is equipped with a solenoid valve one (c141), a pressure reducing valve (c142), a filter (c143), a high pressure pump (c144), and a solenoid valve two (c145) in sequence along the steam conveying direction; the tarpaulin is made of heat-insulating plastic material.

10. The intelligent construction system for ballastless track in ultra-long high-altitude tunnels according to claim 1, characterized in that: The casting silo (4) includes a silo body (41) and lifting support plates (42) located on the left and right sides of the silo body (41). The bottom of the silo body (41) is provided with an inverted "V" shaped material distribution ramp (411) and a plane (412) symmetrically connected to the material distribution ramp (411). The plane (412) is provided with a discharge pipe (413), and a flow sensor is provided inside the discharge pipe (413). The top edge of the silo body (41) is provided with a baffle (414) extending horizontally inward. The lifting support plate (42) is provided with reinforcing ribs (421) spaced apart at the front and back.

Images