An operating vehicle for railway turnout laying and replacement and its operating method

Abstract

A railway turnout laying and replacing operation vehicle, which can be used for laying and replacing turnouts and main line track panels on railways, includes a crawler traveling working device (1) and a flat steel wheel traveling device (2). The two are fixed into an integrated combination as a turnout laying and replacing operation vehicle through a locking device and a fixing device. It has two traveling functions with steel wheels and crawlers or tires, and the driving powers are independent of each other. The crawler traveling working device on the vehicle frame of the turnout laying and replacing operation vehicle of the present invention is increased with a driver's cab, providing an open field of vision for the operator, facilitating the overall coordination of the on-site construction process, and at the same time improving the operator's work comfort and work efficiency. In the case of existing rails, the flat steel wheel traveling device 2 is used to quickly transport turnouts, and in the case of no rails, the crawler traveling working device 1 is used to lift the turnout as a whole to assist in transporting the track panel, which can improve the efficiency of laying and replacing turnouts and avoid the drawback of the need to lay temporary rails.

Description

Technical Field

[0001] The present invention relates to a working vehicle for laying and replacing railway turnouts, belonging to the technical field of engineering equipment. Background Art

[0002] With the vigorous development of China's railway transportation industry, the mileage of railway laying is increasing, and at the same time, the workload of railway line maintenance is also increasing. A turnout is the assembly of connection and crossing equipment between lines, and it is an important part of the railway crossing. Railway turnouts have the characteristics of large quantity, complex structure, short service life, speed limit, large maintenance workload, low driving safety, heavy rails and sleepers on the railway line. Therefore, replacing turnouts on railway lines is a task with a huge workload, and generally, the laying and replacement of turnouts are realized through mechanization. According to the analysis of existing technologies at home and abroad, the current turnout laying and replacement working devices mainly include the following several types:

[0003] One is to adopt the joint operation of multiple upper computers and lower computers. This method requires pre-laying temporary tracks. When it is necessary to carry across adjacent lines, when the upper computer moves horizontally in the direction perpendicular to the track, it is necessary to continuously lower and lift the turnout rail row, and extend and retract the horizontal leg device to achieve horizontal movement, which has great potential safety hazards. At the same time, it is very easy to damage the turnout rail row during the transportation process in this way.

[0004] Another is to use multiple groups of high-stroke hydraulic track-lifting machines to lift and lower the turnout. This method has low handling efficiency, and the oil cylinders are prone to out-of-synchronization and skew problems during the operation, resulting in unstable lifting and lowering of the turnout, and there are potential safety hazards.

[0005] The third is the application of the Chinese invention patent with the publication number of CN 107761487 A, the turnout laying and replacement equipment described in "A Railway Turnout Laying and Replacement Device". This device is composed of a longitudinal beam, a hanging beam, a telescopic arm, a supporting traveling device, an intermediate supporting device, and a lifting device. Since this turnout laying and replacement device completely relies on the crawler traveling device to carry the turnout, due to the heavy turnout rail row and the large resistance of the ballast on the roadbed, the traveling speed of the crawler carrying is extremely slow. The entire device is supported by four intermediate supporting devices. Since it is on the loose ballast of the roadbed, the supporting surface is small, and the device is prone to tilt and lack of stability. During the turnout transportation process, the turnout is hooked by several hanging points on the rail for a long time and has been in a bumpy state of traveling on the ballast, which is very easy to cause damage to the turnout. In addition, there is no driver's cab on the device, and the entire field of vision of the operator is limited, resulting in limitations in operation and observation. Summary of the Invention

[0006] In the present invention, it is set that the direction parallel to the rail is the longitudinal direction, and the direction parallel to the sleeper is the transverse direction.

[0007] The present invention discloses a working vehicle for railway turnout replacement and an operating method thereof, wherein the working vehicle for railway turnout replacement comprises a crawler traveling working device and a flat steel wheel traveling device; the crawler traveling working device and the flat steel wheel traveling device are fixed as a whole by a locking device and a fixing device to form a turnout replacement working vehicle, so that the working vehicle has two traveling functions, namely, steel wheels and crawlers (which can be replaced by tire traveling), and the driving powers are independent of each other and serve as backup for each other.

[0008] The crawler traveling working device includes a vehicle frame and a frame, on which a driver's cab is provided; the lower part of the crawler traveling working device includes a pair of crawlers or tires, which can be telescopically moved horizontally and vertically along the vehicle frame and the frame to make the vehicle frame rise and fall, and can automatically turn and climb, that is, the crawler or tire is directly connected to the transverse movement device of the vehicle frame and the frame; the vehicle frame and the frame are telescopic in the longitudinal direction, that is, the vehicle frame and the frame include a longitudinal telescopic platform, which is extended or retracted along the platform body of the vehicle frame and the frame to achieve longitudinal telescopic or expansion of the vehicle frame and the frame; the rail hoisting device is arranged under the vehicle frame and the frame, and the rail hoisting device is connected to the vehicle frame and the frame with a telescopic device, which can achieve vertical telescopic expansion of the rail hoisting device relative to the vehicle frame and the frame. The upper part of the flat steel wheel traveling device includes a flat platform, which can be telescopically extended and shortened in the longitudinal direction to achieve the function of lengthening and shortening, and the longitudinal telescopic function can be achieved by using a cylinder or a motor to execute a sliding mechanism.

[0009] The flat platform is equipped with clamps and locking pins. The clamps are arranged in pairs and can be extended and retracted horizontally to the left and right of the flat platform. The horizontal extension function can be realized by a cylinder or a motor actuator. The locking pin can be locked by longitudinal movement in front and back of the flat platform. The longitudinal movement locking function can be realized by a cylinder or a motor actuator. At the same time, the flat platform can be functionally expanded as an assembly platform for turnouts; a steel rail running mechanism is set at the bottom of the flat platform. The flat platform and the steel wheel running mechanism are connected by a height compensation device and a slewing bearing. The steel wheel running mechanism has its own power device, which is connected to a remote control panel to realize remote control.

[0010] The invention is a railway transport engineering machinery which can realize vertical telescopic expansion, horizontal widening, longitudinal telescopic expansion, two driving modes of traveling, and hoisting and lifting. By hoisting, lifting, lateral movement, and transporting of the turnout rails, the turnout can be replaced and laid, and has high efficiency and safety and reliability.

[0011] The first aspect of the present invention provides a railway turnout replacement vehicle, which includes a crawler traveling working device and a flat steel wheel traveling device; the two are fixed together by a hydraulic locking device and a safety fixing chain to form a turnout replacement vehicle.

[0012] The described crawler traveling working device includes an electrical control system, a driver's cab, an engine system, a hydraulic pump station, a vehicle frame and a framework, hydraulic outriggers, a crawler traveling device, and a track panel hoisting device.

[0013] The described vehicle frame and framework: The vehicle frame has a longitudinal telescopic function and can be lengthened or shortened in the longitudinal direction, and this function can be achieved by using hydraulic cylinders or motor actuators. The framework is fixed on the upper part of the vehicle frame, and the engine system, hydraulic pump station, electrical control system, etc. are arranged inside it to form a wind and rain shelter space.

[0014] Two hydraulic outriggers are arranged along the longitudinal direction of the vehicle frame and framework to provide temporary support during the lateral telescoping of the crawlers and the lateral handling of the crawler traveling working device and the turnout on the flat steel wheel traveling device.

[0015] The driver's cab is preferably placed in the middle position of the vehicle frame, or can also be separately set at the front end and the rear end. The operator has a wide field of vision inside and it is convenient to communicate with the personnel on both sides of the work vehicle.

[0016] The crawler traveling device is arranged on both sides of the vehicle frame and has automatic lateral and vertical telescoping functions. The crawlers have steering and climbing functions, and a flexible material is arranged on its working surface to prevent damage to the rails and sleepers when traveling and rolling over them. As another optimization option, tires can also be used to replace the crawlers.

[0017] The flat steel wheel traveling device is located directly below the vehicle frame and framework and includes an engine, an electrical control system, a telescoping device, a flat platform, a hydraulic system, a slewing bearing, and a steel wheel traveling mechanism.

[0018] As another optimization option, the flat steel wheel traveling device can be replaced by a self-powered improved flatbed truck.

[0019] On the flat platform, clamps and locking pins are arranged. The clamps are arranged in pairs and can be laterally telescoped on the flat platform to meet the need for clamping and fixing when adapting to the width change of the transported turnout. The locking pins can move longitudinally back and forth on the flat platform and be locked, and are fixed together with the hydraulic lock on the vehicle frame through the pin holes on them.

[0020] The flat platform is functionally expanded. Clamps extend out in the width direction at both ends, and the spreader plates can be opened. After multiple flat steel wheel traveling devices are combined and the detachable spreader plates are laid, it can be used as a turnout assembly platform. Then, detachable handrails are temporarily installed and fixed on the assembly platform to form a firm safety protection framework, so that the turnout can be safely assembled and debugged on the platform.

[0021] The working principle of a railway switch laying and replacement vehicle according to the present invention is as follows: The crawler traveling working device and the flat steel wheel traveling device are fixed together by a safety chain and a hydraulic lock to form a switch laying and replacement vehicle, which can be unlocked and locked at any time according to needs during on-site operations. The crawler traveling working device has a crawler traveling function, and the crawler can be horizontally extended and retracted left and right and lifted and lowered vertically relative to the vehicle frame. The flat steel wheel traveling device is self-powered and equipped with a remote control system, and can freely lift and lower vertically according to operation needs. The flat platform is connected to the steel wheel traveling mechanism by a slewing bearing structure to achieve the free slewing function when traveling on a curve. At the same time, the flat platform is functionally expanded and combined to form a switch assembly platform, eliminating the trouble of erecting a temporary switch assembly platform on-site. In the case of existing rails, the flat steel wheel traveling device is used to quickly transport the switch, and in the case of no rails, the crawler traveling working device is used to lift the switch as a whole to assist in transporting the track panel, which can improve the efficiency of laying and replacing switches and avoid the disadvantages of needing to lay temporary rails.

[0022] The second aspect of the present invention provides a working method for a railway switch laying and replacement vehicle, which includes:

[0023] Step S1: Use a standard flatbed truck to transport the switch laying and replacement vehicle to the operation site.

[0024] Step S2: The crawler traveling working device on the switch laying and replacement vehicle horizontally extends the traveling crawlers left and right, lowers the traveling crawlers vertically onto the ballast bed, lifts the flat steel wheel traveling device, empties the flatbed truck below it, and removes the flatbed truck below it.

[0025] Step S3: The vehicle body of the crawler traveling working device descends vertically to make the flat steel wheel traveling device land on the rails.

[0026] Step S4: After retracting the crawlers, the flat steel wheel traveling device transports the crawler traveling working device to travel on the rails and moves to a position near the location of the old switch to be laid and replaced.

[0027] Step S5: The crawler traveling working device lowers the crawlers, unlocks its fixed connection with the flat steel wheel traveling device and empties the space between it and the flat steel wheel traveling device, and moves to above the old switch to be laid and replaced by traveling on the crawlers.

[0028] Step S6: The crawler traveling working device lowers the track panel hoisting device, lifts the old switch as a whole and moves it onto the flat steel wheel traveling device. The old switch is transported away from the construction site by the flat steel wheel traveling device for disassembly and recycling.

[0029] Step S7: While cleaning the old ballast in the switch area and backfilling, tamping and compacting the new ballast, the crawler traveling working device is transported to a position near the location where the new switch has been pre-assembled by the flat steel wheel traveling device.

[0030] Step S8: The crawler traveling working device lowers the crawler and unlocks its fixed connection with the flat steel wheel traveling device simultaneously.

[0031] Step S9: The vehicle body of the crawler traveling working device rises in the vertical direction, leaving the flat steel wheel traveling device below it suspended in the air.

[0032] Step S10: The crawler traveling working device moves above the new switch, lowers the track panel hoisting device, lifts the new switch as a whole and moves it onto the flat steel wheel traveling device. Lower the hydraulic outriggers, and fix and lock the new switch and the crawler traveling working device on the flat steel wheel traveling device.

[0033] Step S11: Transfer the new switch to the vicinity of the old switch to be replaced through the flat steel wheel traveling device, and release the fixation and locking of the new switch and the crawler traveling working device with the flat steel wheel traveling device.

[0034] Step S12: The crawler traveling working device lifts the new switch, transfers it to the position for switch replacement. After the new switch is in place, lower the new switch and move it onto the flat steel wheel traveling device. Fix and lock it, and move it to the vicinity of the flatbed truck through the flat steel wheel traveling device.

[0035] Step S13: The crawler traveling working device lifts the flat steel wheel traveling device, moves it onto the flatbed truck, and the switch laying and replacement operation vehicle is placed and fixed on the flatbed truck, completing the entire process of switch laying and replacement operation.

[0036] Preferably, for the railway switch laying and replacement operation vehicle, as a further optimization and comparison, its flat steel wheel traveling device 2 can be replaced by an improved flatbed truck. In this way, the consignment of the flatbed truck can be reduced, and the switch laying and replacement operation vehicle can be directly coupled and towed with the existing maintenance vehicle. The improved flatbed truck needs to be equipped with its own traveling power, electrical control system and braking system. When the switch laying and replacement operation vehicle is coupled and towed, the improved flatbed truck cuts off its own power system and braking system, and its function is the same as that of a standard flatbed truck, and air braking can be achieved through the connection of the air duct. When the switch laying and replacement operation vehicle is operating, the improved flatbed truck has the same function as the flat steel wheel traveling device, with its own traveling power system, electrical control system and braking system, and completes the handling of the switch on the track.

[0037] The present invention has the following advantages and effects compared with the prior art: By adopting the above solution, since a combined traveling mode of steel wheels and crawlers is used, it solves the drawbacks that when relying solely on crawler traveling, the operation vehicle and the track are heavy during track lifting, resulting in a slow running speed. At the same time, when relying on crawler traveling for a long distance to lift and transport turnouts, the roadbed ballast is uneven, and the turnout sways left and right in height, which not only limits the transportation speed but also poses potential safety hazards. When relying solely on steel wheel traveling, it is troublesome to lay temporary tracks in advance in places without track slabs. Meanwhile, by expanding and combining the functions of the flat platform, it can be used as a turnout assembly platform, saving the trouble of finding an open site on the spot and temporarily building an assembly platform.

[0038] According to the situation at the turnout laying and replacement operation site, there is no track slab only during a certain period at the position of the turnout to be replaced and when carrying across adjacent lines, and crawler traveling is adopted. Therefore, the turnout laying and replacement operation vehicle of the present invention mainly uses steel wheel traveling and supplemented by crawler traveling. When the on-site conditions are restricted and a new turnout needs to be assembled at a location far from the construction site, it is transported to the construction site by using the steel wheel traveling method, or the functions of the flat platform are expanded and combined to be used as a turnout assembly platform, thus solving the problem of restricted construction sites. In the case of no track slab and carrying across adjacent lines, it switches to the crawler traveling and overall lifting method to transport the turnout. Steel wheel traveling is stable and fast, while crawler traveling is not restricted by the on-site conditions. These two combined construction methods can greatly shorten the transportation time and significantly improve the efficiency of laying and replacing turnouts.

[0039] The crawler traveling working device on the frame of the turnout laying and replacement operation vehicle of the present invention is equipped with a driver's cab, providing the operator with a wide field of vision, facilitating the overall coordination of the on-site construction process, and improving the operator's work comfort and work efficiency at the same time.

[0040] The turnout laying and replacement operation vehicle of the present invention can achieve the laying and replacement of turnouts by combining multiple vehicles according to the specifications and lengths of different turnouts, and can also be applied to the overall laying and replacement operation requirements of the main line track slabs. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a schematic structural diagram of a preferred embodiment of a turnout laying and replacement operation vehicle for railways according to the present invention;

[0042] Figure 2 is Figure 1 a schematic structural diagram of the crawler traveling working device 1 in the shown embodiment;

[0043] Figure 3 is Figure 1 a schematic structural diagram of the flat steel wheel traveling device 2 in the shown embodiment;

[0044] Figure 4 It is a schematic diagram of a turnout laying and replacement operation vehicle for railways being towed on a flatbed truck;

[0045] Figure 5 In Figure 1 Figure Figure 1 is a schematic diagram of the flat steel wheel running gear 2 handling turnouts and the crawler running working device on the rail;

[0046] Figure 6 In Figure 1 Figure Figure 1 is a schematic diagram of the crawler running working device 1 handling turnouts on the ballast turnout;

[0047] Figure 7 In Figure 3 Figure Figure 3 is a schematic diagram of the flat platform 13 on the flat steel wheel running gear 2 combined as a turnout assembly platform;

[0048] Figures 1 - 7 The meanings of the numerical markings in the figure are as follows:

[0049] 1. Crawler running working device; 2. Flat steel wheel running gear; 3. Electrical control system

[0050] 4. Driver's cab; 5. Engine system; 6. Hydraulic pump station

[0051] 7. Frame and framework; 8. Hydraulic outrigger; 9. Crawler running device

[0052] 10. Rail panel lifting device; 11. Engine and electrical control system; 12. Telescopic device

[0053] 13. Flat platform; 14. Hydraulic system; 15. Slewing bearing

[0054] 16. Steel wheel running mechanism; 17. Clamp; 18. Locking pin

[0055] 19. Safety chain; 20. Fixed slider; 21. Removable cushion plate

[0056] 22. Removable handrail; 23. Expandable cushion plate. Specific embodiments

[0057] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present invention.

[0058] As shown in Figure 1 to Figure 7 the figures, specific embodiments of a railway turnout laying and replacement operation vehicle and its operation method according to the present invention are given. The present invention will be further described below in conjunction with the drawings and specific embodiments.

[0059] Embodiment 1.1: A railway turnout laying and replacement operation vehicle, as Figures 1 - 3 shown, which includes a crawler traveling working device 1 and a flat steel wheel traveling device 2. The two are fixed into an integrated combination of a turnout laying and replacement operation vehicle through a hydraulic locking device and a safety fixing chain.

[0060] As Figure 2 shown, a driver's cab 4 is arranged on the frame of the crawler traveling working device 1. The operator can operate inside with a wide field of vision, which is convenient for coordinating the on-site construction process as a whole, can improve the working comfort of the operator, and improve work efficiency. A frame 7 is also arranged on the frame. The frame and the frame 7 form a space for shading and rain protection, which can effectively delay the damage of the equipment. Two hydraulic outriggers 8 are arranged at the lower part in the longitudinal direction of the frame and the frame 7, which play a supporting role when necessary. The frame has a longitudinal telescopic function. A rail panel lifting device 10 is arranged on the frame, and the rail panel lifting device can be telescoped up and down. The crawler traveling devices 9 are arranged on both sides of the frame, with transverse and vertical telescopic functions. The crawlers of the crawler traveling devices 9 have steering and climbing functions, and a flexible material is arranged on their working surfaces to prevent damage to the rails and sleepers when traveling and rolling. The flat steel wheel traveling device 2 is located directly below the frame and the frame 7. There is a flat platform 13 on the flat steel wheel traveling device 2. The flat platform 13 is connected to the steel wheel traveling mechanism 16 by a telescopic jack 12 and a slewing bearing 15 to realize the free slewing function when traveling on a curve. Clamps 17 and locking pins 18 are arranged on the flat platform 13. The clamps 17 are arranged in pairs and can be telescoped transversely relative to the flat platform 13 to meet the clamping and fixing requirements when the turnout changes in width during transportation. The locking pins 18 move longitudinally back and forth on the flat platform 13 for locking.

[0061] In addition, as Figure 3 and Figure 7 shown, the function of the flat platform 13 is expanded. The two ends of the flat platform 13 extend out of the clamps 17 in the width direction. The clamps 17 are opened so that the clamps 17 and the flat platform 13 are located in the same horizontal plane, thereby unfolding the cushion plate 23 as Figure 7 shown. After multiple flat steel wheel traveling devices 2 are combined, a detachable cushion plate 21 is laid outside the cushion plate 23. In this way, it can be used as a turnout assembly platform, and a detachable handrail 22 is temporarily installed and fixed on the assembly platform to form a firm safety protection frame, so that the turnout can be assembled and debugged safely on the flat platform 13.

[0062] A railway turnout laying and replacement operation vehicle as described in the above embodiments, during operation, the crawler running working device 1 and the flat steel wheel running device 2 are unloaded from the flatbed transporter through the lifting and running of the crawler running working device 1, and then move to the vicinity of the pre-assembled position of the new turnout through the steel wheel running of the flat steel wheel running device 2. The crawler running working device 1 runs to above the new turnout, transports the new turnout to the flat steel wheel running device 2, and integrally transports it to the vicinity of the old turnout to be replaced through the steel wheel running of the flat steel wheel running device 2. The crawler running working device 1 is first unloaded, runs to the position of the old turnout, removes the old turnout, transports the new turnout to the position of the old turnout and puts it down, then returns to the flat steel wheel running device 2, is transported to the starting position of the operation through the flat steel wheel running device 2, and finally is lifted and transported back to the flatbed transporter through the crawler running working device 1.

[0063] Embodiment 1.2: A railway turnout laying and replacement operation vehicle, the same as Embodiment 1.1, the difference is that: tires are used to replace the crawlers.

[0064] Embodiment 2.1: An operation method for a railway turnout laying and replacement operation vehicle, which includes:

[0065] Step S1: Use a standard flatbed truck to transport the turnout laying and replacement vehicle to the operation site.

[0066] Step S2: The crawler running working device 1 on the turnout laying and replacement vehicle horizontally extends the running crawlers in the left-right direction, vertically lowers the running crawlers to the ballast bed, lifts the flat steel wheel running device 2, empties the flatbed transporter below it, and removes the flatbed truck below it.

[0067] Step S3: The vehicle body of the crawler running working device 1 descends vertically so that the flat steel wheel running device 2 lands on the rails.

[0068] Step S4: After retracting the crawlers, the flat steel wheel running device 2 transports the crawler running working device 1 to run on the rails and moves to the vicinity of the position of the old turnout to be laid and replaced.

[0069] Step S5: The crawler running working device 1 puts down the crawlers, simultaneously unlocks its fixed connection with the flat steel wheel running device 2 and empties it and the flat steel wheel running device 2, and moves to above the old turnout to be laid and replaced through the crawler running.

[0070] Step S6: The crawler running working device 1 puts down the track lifting device 10, integrally lifts the old turnout and moves it onto the flat steel wheel running device 2. The old turnout is transported away from the construction site through the flat steel wheel running device 2 for disassembly and recycling.

[0071] Step S7: While cleaning the old ballast in the turnout area and tamping and compacting the new ballast, the crawler running working device 1 is transported to the vicinity of the position where the new turnout has been pre-assembled through the flat steel wheel running device 2.

[0072] Step S8: The crawler traveling working device 1 lowers the crawler track and unlocks its fixed connection with the flat steel wheel traveling device 2 at the same time.

[0073] Step S9: The crawler traveling working device 1 rises in the vertical direction, and the flat steel wheel traveling device 2 thereunder is vacated.

[0074] Step S10: The crawler traveling working device 1 moves to the top of the new turnout, the track hoisting device 10 is lowered, the new turnout is lifted as a whole and moved to the flat steel wheel running device 2. The hydraulic support legs 8 are lowered, and the new turnout and the crawler traveling working device 1 are fixed and locked on the flat steel wheel running device 2.

[0075] Step S11: The new turnout is transferred to the vicinity of the old turnout to be replaced by the flat steel wheel running device 2, and the new turnout and the crawler running working device 1 are fixed and locked to the flat steel wheel running device 2.

[0076] Step S12: The crawler traveling working device 1 lifts the new turnout and moves it to the position of the turnout change. After the new turnout is in place, the new turnout is put down and moved onto the flat steel wheel running device 2. It is fixed and locked, and moved to the vicinity of the flatbed vehicle through the flat steel wheel running device 2.

[0077] Step S13: The crawler traveling working device 1 lifts the flat steel wheel traveling device 2, moves it to the flatbed truck, and then the turnout changing operation vehicle is placed and fixed on the flatbed truck to complete the entire turnout changing operation process.

[0078] In the present embodiment, it is preferred that the flat steel wheel running device 2 of the railway turnout laying and replacing vehicle described above can be replaced by an improved flatbed vehicle as a further optimization and comparison, which can reduce the consignment of flatbed vehicles. The laying and replacing vehicle can be directly coupled with the existing maintenance vehicle for towing, and the improved flatbed vehicle needs to carry its own propulsion power, electrical control system and braking system. When the laying and replacing vehicle is coupled and towed, the improved flatbed vehicle cuts off its own power system and braking system, and its function is the same as that of a standard flatbed vehicle, and air braking can be achieved through the connection of an air duct. When the laying and replacing vehicle is operating, the improved flatbed vehicle has the same function as the flat steel wheel running device 2, and carries its own propulsion power system, electrical control system and braking system to complete the transportation of the turnout on the rail.

[0079] The second aspect of the present invention provides an operating method for railway turnout laying and changing vehicles using the turnout laying and changing vehicle described in the first aspect of the present invention.

[0080] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make many possible changes and modifications to the technical solution of the present invention by using the methods and technical contents disclosed above, or modify it into equivalent embodiments with equivalent changes. Therefore, any simple modification, equivalent replacement, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention still belong to the scope of protection of the technical solution of the present invention.

[0081] The positive effects of the above-described embodiments for the railway switch laying and replacement operation vehicle are as follows:

[0082] (1) The present invention realizes the mechanization of railway switch laying and replacement, can greatly reduce the number of operating personnel, only a small number of auxiliary personnel need to be equipped, can reduce the labor intensity of manual work, improve the work comfort of operators, and save labor costs compared with the prior art solution, reduce the labor intensity of operating personnel, and reduce safety risks.

[0083] (2) The present invention combines the advantages of two traveling modes of crawlers and steel wheels, has a high efficiency in laying and replacing switches. When transporting switches in places with rails, steel wheels are used for traveling, and when transporting switches in places without rails, crawlers or tires are used for traveling. The two modes can be switched conveniently and quickly, avoiding the disadvantages of low efficiency in laying temporary rails and transporting switches.

[0084] (3) The present invention is provided with a driver's cab with a wide field of vision, which is convenient for operators to overall control the site.

[0085] (4) The present invention mainly transports switches through a flat platform, and the transportation is stable and reliable, and the switches are not easily damaged.

[0086] (5) The hydraulic outriggers are arranged longitudinally along the vehicle frame in a new type instead of the conventional left-right arrangement, which can reduce the number of hydraulic outriggers and improve the synchronism during support.

[0087] (6) The functions of the flat platform are expanded. Clamps are extended in the width direction at both ends, and pads can be unfolded when opened. After multiple flat steel wheel traveling devices are combined and detachable pads are laid, it can be used as a switch assembly platform. Then, detachable handrails are temporarily installed and fixed on the assembly platform to form a firm safety protection frame, so that the assembly and debugging of switches can be safely carried out on the platform, solving the problem of limited on-site space and eliminating the need to temporarily build a switch assembly platform on the roadbed.

Claims

1. An operation method for a railway turnout laying and replacement vehicle, which uses the railway turnout laying and replacement vehicle to lay and replace turnouts and main line track panels on the railway, is characterized in that: The invention comprises a crawler walking working device (1) and a flat steel wheel walking device (2), which are fixed together as a whole by a locking device and a fixing device to form a turnout laying and changing operation vehicle, and has two walking functions of steel wheels and crawlers or tires, and the driving power is independent of each other and serves as a backup for each other; a hydraulic support leg (8) is arranged below the frame and framework (7) of the crawler walking working device (1) in the longitudinal direction, and the hydraulic support leg is supported on two parallel steel rails or ballast roadbed; the frame of the crawler walking working device (1) has a longitudinal telescopic function, and a rail hoisting device (10) is arranged on the frame, and the rail hoisting device can be telescoped up and down; the operation method comprises: Step S1: transport the turnout shop to the work site using a standard flatbed truck; Step S2: The crawler walking working device (1) on the turnout paving and changing car extends the crawler tracks horizontally in the left and right directions, lowers the crawler tracks vertically onto the ballast roadbed, lifts the flatbed steel wheel walking device (2), vacates the flatbed truck under it, and removes the flatbed truck under it; Step S3: the crawler traveling working device (1) is lowered in the vertical direction, so that the flat steel wheel traveling device (2) falls on the rail; Step S4: After the crawler tracks are folded up, the flat steel wheel running device (2) moves the crawler running working device (1) to run on the rails and moves to the vicinity of the position where the old turnout is to be replaced; Step S5: the crawler running working device (1) lowers the crawler, unlocks the fixed connection between the crawler and the flat steel wheel running device (2), vacates the crawler and the flat steel wheel running device (2), and moves to the top of the old turnout to be replaced by the crawler; Step S6: The crawler traveling working device (1) lowers the track hoisting device (10), lifts the old turnout as a whole and moves it onto the flat steel wheel traveling device (2); the flat steel wheel traveling device (2) transports the old turnout away from the construction site for disassembly and recycling; Step S7: cleaning the old ballast in the turnout area and tamping and compacting the new ballast, while the crawler traveling working device (1) is transported to the vicinity of the position where the new turnout is assembled in advance via the flat steel wheel traveling device (2); Step S8: the crawler traveling working device (1) lowers the crawler and simultaneously unlocks the fixed connection between the crawler and the flat steel wheel traveling device (2); Step S9: The crawler traveling working device (1) rises in the vertical direction, and the flat steel wheel traveling device (2) thereunder is vacated; Step S10: the crawler travel working device (1) moves to the top of the new turnout, the track hoisting device (10) is lowered, the new turnout is lifted as a whole and moved to the top of the flat steel wheel running device (2); the hydraulic support legs (8) are lowered, and the new turnout and the crawler travel working device (1) are fixed and locked on the flat steel wheel running device (2); Step S11: using the flat steel wheel running device (2) to transfer the new turnout to the vicinity of the old turnout to be replaced, and releasing and locking the new turnout and the crawler running working device (1) and the flat steel wheel running device (2); Step S12: The crawler traveling working device (1) lifts the new switch, transfers it to the position for switch replacement. After the new switch is in place, it is lowered and then moved onto the flat steel wheel traveling device (2); it is fixed and locked, and then moved near the flatbed truck through the flat steel wheel traveling device (2). Step S13: The crawler traveling working device (1) lifts the flat steel wheel traveling device (2), moves it onto the flatbed truck, and then the switch laying and replacement operation vehicle is placed and fixed on the flatbed truck to complete the entire switch laying and replacement operation process.

2. The operation method of a railway switch laying and replacement operation vehicle according to claim 1, characterized in that: A driver's cab (4) is arranged on the frame of the crawler traveling working device (1), which forms a sunshade and rain-proof space together with the frame and the framework (7).

3. The operation method of a railway turnout laying and replacement vehicle according to claim 1, characterized in that: The crawler traveling device (9) of the crawler traveling working device (1) has the functions of steering and climbing, and a flexible material is arranged on its working surface.

4. The operation method of a railway turnout laying and replacement operation vehicle according to claim 1, characterized in that: As another optimized alternative, the flat steel wheel traveling device (2) is replaced by a self-powered improved flatbed truck; its upper flat platform (13) has an automatic telescoping function in the longitudinal direction, and clamp pliers (17) and locking pins (18) are arranged. The clamp pliers (17) are arranged in pairs and can telescopically move left and right on the flat platform (13). The locking pins (18) move longitudinally back and forth on the flatbed and are locked, and are fixed to the hydraulic lock of the frame and the framework (7) through the pin holes on them.

5. The operation method of a railway turnout laying and replacement operation vehicle according to claim 4, characterized in that: Between the upper flat platform (13) and the steel wheel traveling mechanism (16) of the flat steel wheel traveling device (2), a telescopic device (12) and a slewing bearing (15) are used for connection to ensure that the flat steel wheel traveling device (2) can smoothly pass through curves.

6. The operation method of a railway turnout laying and replacement operation vehicle according to claim 1 or 4 or 5, characterized in that: For the flat steel wheel traveling device (2), the function of its upper flat platform (13) is expanded. Clamp pliers (17) extend out in the width direction at both ends, and the expandable cushion plate (23) can be opened. After multiple flat steel wheel traveling devices (2) are combined, a detachable cushion plate (21) is laid. In this way, it can be used as a switch assembly platform, and then a detachable handrail (22) is temporarily installed and fixed on the assembly platform to form a firm safety protection framework for safely assembling and debugging the switch on the platform.

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