Device for transporting steel rail assembly on existing subway line
By using tractors, flatbeds, sliders and turntables in the existing subway line transportation, the problem of difficult deformation of the 42# high-speed switch assembly in the small curve radius is solved, stable and safe transportation is achieved, and transportation efficiency is improved And reduce costs.
Patent Information
- Application Number
- CN202420435841.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-07
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-03-07
AI Technical Summary
In the existing subway line transportation, the 42# high-speed switch assembly is difficult to control deformation at the small curve radius, resulting in difficulty in transportation and unloading, and safety risks.
A device including a tractor, a flatbed car, a sliding platform and a turntable is designed. The flatbed car is connected in sequence to form a flatbed vehicle. The two flatbed carts in the middle are arranged on the two flatbed cars, and the rotary wheels are arranged on the flatbed carts at both ends. The front end of the rail component is connected to the front rotary wheel. , the rear end is connected to the last turntable, the limiting member limits the rear end position, and the slider A and slider B slide on the slide platform to avoid extrusion deformation.
It effectively avoids extrusion deformation of rail components at the small curve radius, ensures the stability and safety of transportation, improves transportation efficiency, reduces transportation costs, and is suitable for the transportation of rail components of different lengths and quantities.
Smart Images
Figure CN222136745U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of component transportation, in particular to a device for transporting rail components on an existing subway line. Background Art
[0002] With the development of urban rail transit, the requirements for train running speed, comfort and noise reduction are getting higher and higher. The No. 7, No. 9 and No. 12 turnouts commonly used in urban rail transit in the past can no longer fully meet the operation needs. The design speed of the second phase of Chengdu Rail Transit Line 19 is 160km / h. In order to ensure that the train does not reduce speed when passing through stations, the 42# special vibration reduction single-opening turnout was used for the first time in China.
[0003] The domestic subway adopted the large-size 42# high-speed turnout for the first time. Due to the enlarged and lengthened size of each component, the longest guide rail assembly of the turnout is 49m long and the longest base point rail is 46m long. The deformation control and precision requirements of the turnout assembly are high, resulting in great difficulties in the transportation and unloading of turnout spare parts during the later operation of the turnout, especially when the turnout is transported through a small curve radius, the deformation of the turnout assembly is difficult to control.
[0004] The construction background of this project is that the domestic subway uses the large-sized 42# high-speed turnout for the first time. The turnout spare parts are transported on the existing subway line. There is no construction precedent to learn from. There are studies on the transportation of large-sized turnout components on high-speed railways, but they are all studies during the construction period. There is no research and application of transportation and unloading on the existing operating line.
[0005] During the construction period of the existing high-speed railway, the transportation of 42# turnout components has been carried out, and the following situations exist:
[0006] Case 1: High-speed rail has better operating conditions than subway, and unloading can be done using flexible construction methods such as truck cranes, with more time;
[0007] Case 2: High-speed rail transportation has better line characteristics than subway transportation. The small curve radius of the subway needs to consider the problem of extrusion and deformation of turnout components during transportation;
[0008] Situation 3: Compared with the high-speed rail construction period, the existing subway line transportation has heavy tasks, tight time and great safety risk pressure.
[0009] Based on the above, a device for transporting rail components on an existing subway line is needed. Utility Model Content
[0010] The utility model aims to overcome the shortcomings of the prior art and provide a device for transporting rail components on an existing subway line to overcome the technical problem of squeezing turnout components when the subway line turns.
[0011] The purpose of this utility model is achieved through the following technical solutions:
[0012] A device for transporting rail components on an existing subway line comprises a tractor, four flatbed trucks, four slides and two turntables; the four flatbed trucks are sequentially connected to form a flatbed carrier, and the front flatbed truck is connected to the tractor; two horizontal slides are respectively arranged on the two middle flatbed trucks of the flatbed carrier, and the slides are fixed on the flatbed trucks; and a turntable is respectively arranged on the flatbed trucks at both ends of the flatbed carrier;
[0013] The flatbed car at the front of the flatbed carrier is hinged to the tractor, and the adjacent flatbed cars of the flatbed carrier are hinged to each other; the front end of the rail assembly is connected to the turntable on the flatbed car at the front of the flatbed carrier; the rear end of the rail assembly is connected to the turntable on the flatbed car at the rear of the flatbed carrier, and a limiter is provided on the turntable on the rear flatbed car, which is used to limit the left and right position of the rear end of the rail assembly;
[0014] The rail assembly is placed on a horizontal slide on two flatbed cars in the middle of the flatbed carrier; a slide plate A is arranged on the slide, a slide plate B is arranged on the rail assembly, and slide plate B is arranged on slide plate A.
[0015] As a preferred embodiment, a lubricating layer is provided between the slide plate B and the slide plate A, for example, lubricating oil is applied between the slide plate B and the slide plate A.
[0016] As a preferred method, the slide includes a 25cm (width) * 8cm (height) channel steel transversely fixed on a flatbed truck, the length of the channel steel is generally the width of the flatbed truck, generally 2.5m. The channel steel is fully covered with a PTFE slide plate as a slide plate A.
[0017] As a preferred embodiment, a polytetrafluoroethylene slide plate is provided at the bottom of the rail assembly as the slide plate B, and the polytetrafluoroethylene slide plate is tied to the rail assembly.
[0018] As a preferred embodiment, the turntable includes a slewing bearing and a steel plate base, and the steel plate base is fixed on a flatbed vehicle.
[0019] As a preferred embodiment, a contact steel plate is provided on the slewing bearing, and the contact steel plate is fixed to the inner ring of the slewing bearing. As a preferred embodiment, the thickness of the steel plate base is 2 cm; the thickness of the contact steel plate is 5 mm.
[0020] As a preferred embodiment, the limiting member includes two screw rods and a top plate, the bottoms of the two screw rods are connected to the turntable, the tops of the two screw rods pass through two through holes of the top plate respectively, and nuts are arranged on the screw rods.
[0021] As a preferred embodiment, the limit member is provided on a turntable on the flatbed car at the front of the flatbed carrier, and the limit member is used to lock the front end of the rail assembly.
[0022] As a preferred embodiment, protective baffles are provided on both sides of the flatbed truck.
[0023] The utility model has at least the following beneficial effects: the device is mainly composed of a tractor, a flatbed, a slide and a turntable. The flatbeds are connected in sequence to form a flatbed carrier, and the front flatbed is connected to the tractor. Two horizontal slides are arranged on each of the two middle flatbeds, and the slides are fixed on the flatbed to carry the rail assembly. The front flatbed of the flatbed carrier is hinged to the tractor, and the adjacent flatbeds are also hinged to allow flexible turning and movement. When in use. The turntables on the flatbeds at both ends are used to limit the front and rear ends of the rail assembly to the left and right. The rail assembly is placed on the slide, and the setting of the slide plate A and the slide plate B allows the rail assembly to slide on the slide, and the limiter can limit the left and right position of the rear end of the rail assembly to ensure the stability and safety of transportation. When the flatbed turns, since the rail assembly can slide on the slide, even if it encounters a small curve radius of the subway, it can basically ensure that the rail assembly does not bend, and avoid the rail assembly from being squeezed and deformed. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.
[0025] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the utility model;
[0026] Figure 2 This is a schematic diagram of the installation position of the turntable and the slide;
[0027] Figure 3 This is a schematic diagram of the installation of the slide on the flatbed truck;
[0028] Figure 4 It is a structural schematic diagram of the slide;
[0029] Figure 5 This is a schematic diagram of the installation of a turntable on a flatbed truck;
[0030] Figure 6 It is a schematic diagram of the turntable structure;
[0031] In the figure, 1-tractor, 2-flatbed car, 3-slide, 31-slide plate B, 32-slide plate A, 33-channel steel base, 4-1-front turntable, 4-2-rear turntable, 41-contact steel plate, 42-slewing bearing, 43-base, 6-rail assembly, 7-screw, 8-top plate. DETAILED DESCRIPTION
[0032] The technical solution of the present utility model is further described in detail below in conjunction with the accompanying drawings, but the protection scope of the present utility model is not limited to the following.
[0033] Hereinafter, different embodiments of the present disclosure will be described with reference to the accompanying drawings. However, it should be understood that the present disclosure is not limited to the specific form disclosed herein, but rather, the present disclosure should be interpreted as covering different changes, equivalents and / or replacements of the embodiments of the present disclosure. When describing the accompanying drawings, similar reference numerals may be used to indicate similar components.
[0034] In the present disclosure, if there is a statement "A or B", "at least one of A and / or B", or "one or more of A and / or B", it can include all possible combinations of the listed items. For example, the statement "A or B", "at least one of A and B", or "at least one of A or B" refers to all of the following situations: (1) including at least one A, (2) including at least one B, or (3) including both at least one A and at least one B.
[0035] The expressions used in different embodiments of the present disclosure, if there is "first", "second", "the first" or "the second" can modify different elements, regardless of order and / or importance, without limiting the corresponding elements. For example, a first user device and a second user device refer to different user devices, although both of them are user devices. For example, a first element can be referred to as a second element, and similarly, a second element can be referred to as a first element without departing from the scope of the present disclosure.
[0036] It will be understood that when an element (e.g., a first element) is referred to as being (operably or communicatively) "connected to" or "coupled to" another element (e.g., a second element), the element may be directly connected or coupled to the other element, or any other element (e.g., a third element) may be interposed therebetween. Conversely, when an element (e.g., a first element) is referred to as being "directly connected" or "directly coupled to" another element (the second element), no element (e.g., a third element) is interposed therebetween.
[0037] In the present disclosure, the terms are used to describe specific embodiments and do not limit the present disclosure. As used herein, the singular form is intended to also include the plural form, unless the content clearly indicates otherwise. In the specification, it should be understood that the term "including" or "having" represents the presence of a feature, number, step, operation, structural element, component or combination thereof, without excluding in advance the possibility of the presence or addition of one or more other features, numbers, steps, operations, structural elements, components or combinations thereof.
[0038] It should be understood that certain details are provided in the following description to facilitate a complete understanding of the example embodiments. However, one of ordinary skill in the art should understand that the example embodiments can be implemented without these specific details. For example, the system can be shown in a block diagram to avoid obscuring the example with unnecessary details. In other examples, well-known processes, structures, and techniques may not be shown in unnecessary details to avoid obscuring the example.
[0039] The 42# high-speed vibration-reducing turnout is huge, with a total length of 157.2m, the longest rail assembly of 649.196m, a pointed basic rail of 46.192m, 165t of hot-rolled ribbed steel bars, and 495m of C40 concrete. 3 The movable heart switch has a total length of 30.592m. The requirements for vibration reduction and smoothness in the switch area are high, and the precision control is difficult. The 42# turnout is currently being studied and used on high-speed railways, but the research direction focuses more on the process, and there is a lack of research and application in the monitoring of turnout hoisting and transportation. Regarding the construction of the 42# special vibration reduction single-opening turnout in the limited space operating environment of the subway, how to effectively solve the technical problem of transporting long and large turnout components in limited space is the key to the successful laying of large-number vibration reduction turnouts in the subway.
[0040] Embodiment 1
[0041] like Figure 1 As shown, a device for transporting rail assemblies 6 on an existing subway line comprises a tractor 1, four flatbed trucks 2, four slides 3 and two turntables; the four flatbed trucks 2 are sequentially connected to form a flatbed carrier, and the front flatbed truck 2 is connected to the tractor 1; two horizontal slides 3 are respectively arranged on the two middle flatbed trucks 2 of the flatbed carrier, and the slides 3 are fixed on the flatbed trucks 2; and a turntable is respectively arranged on the flatbed trucks 2 at both ends of the flatbed carrier;
[0042] The flatbed 2 at the front of the flatbed carrier is hinged to the tractor 1, and the adjacent flatbeds 2 of the flatbed carrier are hinged; the front end of the rail assembly 6 is connected to the turntable (front turntable 4-1) on the flatbed 2 at the front of the flatbed carrier; the rear end of the rail assembly 6 is connected to the turntable (rear turntable 4-2) on the flatbed 2 at the rear of the flatbed carrier, and a limiter is set on the turntable on the rear flatbed 2, which is used to limit the left and right position of the rear end of the rail assembly 6 to ensure that the rail assembly 6 can move on the turntable; the turnout assembly or the rail assembly 6 is placed on the turntable, and the rail component can be rotated at a small angle during transportation to keep the rail component (i.e., the rail assembly 6) vertical.
[0043] The rail assembly 6 is placed on the horizontal slide 3 on the two flatbed trucks 2 in the middle of the flatbed carrier; a slide plate A32 is arranged on the slide plate 3, a slide plate B31 is arranged on the rail assembly 6, and the slide plate B31 is arranged on the slide plate A32. The rail assembly 6 can slide freely on the flatbed truck 2 when transporting in a small curve (for example, the radius of the small curve is 600m) without being squeezed.
[0044] Through the above scheme, the task of transporting rail assemblies 6 on existing subway lines can be effectively completed with high stability and safety. It has a clever design, simple structure, and easy operation, which can improve transportation efficiency and reduce transportation costs. At the same time, the device can also adjust the composition and quantity according to actual needs to meet the transportation needs of rail assemblies 6 of different lengths and quantities. The promotion and application of this device has important practical significance for improving the maintenance and upgrading efficiency of existing subway lines. For the 42# high-speed vibration-damping turnout, setting up 4 flatbed cars 2 is a more ideal combination in the current practice. The specific dimensions between the slides 3 and between the slides 3 and the turntable, such as Figure 1 , Figure 2 As shown, the units of 6000 and 7000 are both mm.
[0045] In a preferred embodiment, a lubricating layer is provided between the slide plate B31 and the slide plate A32, for example, lubricating oil is applied between the slide plate B31 and the slide plate A32.
[0046] In a preferred embodiment, if Figure 3 and Figure 4 As shown, the slide 3 includes a 25cm*8cm channel steel (i.e. Figure 3 , Figure 4 The channel steel base 33 is provided, and the channel steel is fully covered with a polytetrafluoroethylene skateboard as a skateboard A32. A polytetrafluoroethylene skateboard is provided at the bottom of the rail assembly 6 as a skateboard B31, and the polytetrafluoroethylene skateboard is tied to the rail assembly 6. The rail assembly 6 can slide on the slide 3 to prevent the rail assembly 6 from bending when turning, thereby preventing the rail assembly 6 from being squeezed. Generally, since the rail assembly 6 is relatively heavy and has high surface accuracy requirements, a skateboard (skateboard A32 and / or skateboard B31) is provided to make the rail assembly 6 easier to slide. The channel steel and the flatbed car 2 are fixed by welding, and two layers of polytetrafluoroethylene skateboards are fully covered on the channel steel as sliding layers. The lower polytetrafluoroethylene skateboard is 5 cm thick and is fixed on the channel steel, and the upper polytetrafluoroethylene skateboard is fixed on the rail assembly 6, and lubricating oil is applied in the middle.
[0047] In a preferred embodiment, if Figure 5 and Figure 6As shown, the turntable includes a slewing bearing 42 and a steel plate base 43. The steel plate base 43 can be connected to the slewing bearing 42 by bolts, and the steel plate base 43 is fixed on the flatbed vehicle 2. In a preferred embodiment, a contact steel plate 41 is provided on the slewing bearing 42, and the contact steel plate 41 is fixed to the inner ring of the slewing bearing 42 (see Figure 6 ). The contact steel plate 41 has a diameter of 80 cm and can be connected to the slewing bearing 42 by bolts.
[0048] In a preferred embodiment, the thickness of the steel plate base 43 is 2 cm; the thickness of the contact steel plate 41 is 5 mm to ensure that the base 43 is solid. The contact steel plate 41 needs to be drilled to meet the support requirements and does not need to be too thick. In a preferred embodiment, the limiter includes two screws 7 and a top plate 8. The bottoms of the two screws 7 are connected to the turntable, and the tops of the two screws 7 pass through the two through holes of the top plate 8 respectively. Nuts are set on the screws 7. Generally, the nuts do not need to be locked, that is, the top plate 8 will not put too much pressure on the rail assembly 6, and the rail assembly 6 can slide back and forth. During the transportation process, there are people accompanying to help correct the position of the rail assembly 6.
[0049] Taking into account the problem of uneven existing subway lines, the limiter is set on the turntable on the flatbed car 2 at the front of the flatbed carrier. The limiter is used to lock the front end of the rail assembly 6, that is, the front limiter needs to lock the nut, and the top plate 8 applies pressure to the rail assembly 6 to prevent the rail assembly 6 from detaching from the turntable. The front limiter is provided with a rubber pad under the top plate 8, and a rubber pad is also provided between the rail assembly 6 and the turntable to increase the friction. In this way, even when going uphill or downhill, the front limiter clamps the rail assembly 6 to prevent the rail assembly 6 from detaching. It should be noted that, in general, the rear limiter only needs to limit the left and right sides of the rail assembly 6, and there is no need to lock the rear end of the rail assembly 6. In order to avoid damaging the rail assembly 6, a buffer pad (such as cardboard) can also be placed on the turntable or the rail assembly 6 can be wrapped with a buffer (such as an object made of cloth).
[0050] In a preferred embodiment, protective baffles are provided on both sides of the flatbed car 2 to prevent the rail assembly 6 from being thrown out of the flatbed car 2. Preferably, the flatbed car 2 is provided with limiting protective baffles on all sides.
[0051] The utility model solves the technical problems of transportation and unloading of turnout components of large-sized subway turnouts during operation, ensures that the turnout components are not squeezed and deformed when transported through a small curve radius, and do not invade the line. After the turnout components are transported to the working surface, they can be unloaded quickly. The transportation of the turnout to unloading must be completed within one working window point, ensuring the safety of the operation of the existing subway line. The utility model is particularly suitable for a construction method for transporting and unloading long and large components of large-sized high-speed subway turnouts in a narrow space, and has great market prospects and maintenance value in intercity rail transit.
[0052] Although the preferred embodiments of the utility model have been described, those skilled in the art may make additional changes and modifications to these embodiments once they are aware of the basic creative concepts. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the utility model. The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. It should be pointed out that any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.
Claims
1. A device for transporting rail assemblies on an existing subway line, characterized in that: It includes 1 tractor, 4 flatbed trucks, 4 slides and 2 turntables; the 4 flatbed trucks are connected in sequence to form a flatbed carrier, and the front flatbed truck is connected to the tractor; two horizontal slides are respectively arranged on the two middle flatbed trucks of the flatbed carrier, and the slides are fixed on the flatbed trucks; a turntable is respectively arranged on the flatbed trucks at both ends of the flatbed carrier; The flatbed car at the front of the flatbed carrier is hinged to the tractor, and the adjacent flatbed cars of the flatbed carrier are hinged to each other; the front end of the rail assembly is connected to the turntable on the flatbed car at the front of the flatbed carrier; the rear end of the rail assembly is connected to the turntable on the flatbed car at the rear of the flatbed carrier, and a limiter is provided on the turntable on the rear flatbed car, which is used to limit the left and right position of the rear end of the rail assembly; The rail assembly is placed on a horizontal slide on two flatbed cars in the middle of the flatbed carrier; a slide plate A is arranged on the slide, a slide plate B is arranged on the rail assembly, and slide plate B is arranged on slide plate A.
2. The device for transporting rail assemblies on an existing subway line according to claim 1, characterized in that: A lubricating layer is provided between the slide plate B and the slide plate A.
3. The device for transporting rail assemblies on an existing subway line according to claim 1, characterized in that: The slide table includes a 25cm*8cm channel steel transversely fixed on a flatbed truck, and the channel steel is fully covered with a PTFE slide plate as a slide plate A.
4. The device for transporting rail assemblies on an existing subway line according to claim 3, characterized in that: A polytetrafluoroethylene slide plate is arranged at the bottom of the rail assembly as a slide plate B, and the polytetrafluoroethylene slide plate is tied to the rail assembly.
5. The device for transporting rail assemblies on an existing subway line according to claim 1, characterized in that: The turntable includes a slewing bearing and a steel plate base, and the steel plate base is fixed on a flatbed vehicle.
6. The device for transporting rail assemblies on an existing subway line according to claim 5, characterized in that: A contact steel plate is arranged on the slewing bearing, and the contact steel plate is fixed to the inner ring of the slewing bearing.
7. The device for transporting rail assemblies on an existing subway line according to claim 6, characterized in that: The thickness of the steel plate base is 2cm; the thickness of the contact steel plate is 5mm.
8. The device for transporting rail assemblies on an existing subway line according to claim 1, characterized in that: The limiting component comprises two screw rods and a top plate. The bottoms of the two screw rods are connected with the rotating disk, the tops of the two screw rods respectively pass through two through holes of the top plate, and nuts are arranged on the screw rods.
9. The device for transporting rail assemblies on an existing subway line according to claim 8, characterized in that: The limiting member is arranged on the turntable on the flatbed car at the front of the flatbed carrier, and the limiting member is used to lock the front end of the rail assembly.
10. The device for transporting rail assemblies on an existing subway line according to claim 1, characterized in that: Protective baffles are provided on both sides of the flatbed truck.