A plate replacement system for subway track plates

Abstract

The present invention discloses a plate changing system for subway track plates, the plate changing system for subway track plates comprises a plate changing vehicle, a cutting device, a rail lifting device and a lifting device, the cutting device is arranged on the plate changing vehicle, the cutting device is used to cut the track plate to be replaced on the track, the rail lifting device is arranged on the plate changing vehicle, the rail lifting device is used to lift the track to separate the track from the track plate to be replaced, the lifting device is arranged on the plate changing vehicle, the lifting device is used to remove the track plate to be replaced after cutting on the track or to assemble the track plate to be laid. The plate changing system for subway track plates of the present invention integrates the system mechanism within the limit of the subway tunnel equipment and adopts the construction method of lifting the rail to replace the track plate, thereby avoiding the damage of the rails to the rails during the track cutting and replacement. At the same time, the plate can be quickly replaced in a limited space, and the replacement speed is fast. Each process is equipped with a corresponding mechanism, which reduces the work intensity and improves the work efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of track construction, and in particular to a plate changing system for subway track plates. Background Art

[0002] With the continuous acceleration of urbanization, subway construction has become an important way to alleviate urban traffic congestion. However, when performing track replacement and maintenance operations in subway tunnels, due to its narrow plate replacement space, the plate replacement is usually done manually, the plate replacement process is complicated, the operation intensity is high, and there are certain limitations. On the one hand, the plate replacement space in the subway tunnel is too narrow, making it difficult to use conventional track replacement methods, and track cutting technology needs to be used. This method increases the difficulty of the operation to a certain extent, prolongs the construction period, and also increases the operation cost. On the other hand, in order to replace the track in a narrow tunnel, it is sometimes necessary to use a horizontal rail shifting method. However, this method is prone to damage the rails and affects the safe operation of subway trains. Summary of the invention

[0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0004] To this end, an embodiment of the present invention provides a track plate replacement system for subway track plates, which solves the technical problem of replacing track plates within the limited space of subway tunnel equipment without cutting the rails.

[0005] The plate replacement system for subway track plates according to the embodiment of the present invention comprises:

[0006] Change the cart;

[0007] A cutting device, the cutting device is arranged on the plate changing vehicle, and the cutting device is used to cut the track plate to be replaced on the track;

[0008] A rail lifting device, which is arranged on the track plate changing vehicle and is used to lift the rails to separate them from the track plate to be replaced;

[0009] A lifting device is arranged on the plate changing vehicle, and is used to remove the track plate to be replaced after being cut on the track or to assemble the track plate to be laid.

[0010] The plate replacement system for subway track plates in the embodiment of the present invention integrates the system mechanism within the limit of the subway tunnel equipment and adopts the construction method of lifting the track plate to replace the track plate, thereby avoiding the damage to the rails caused by rail cutting and replacement. At the same time, the plate can be replaced quickly in a limited space with a fast replacement speed. Each process is equipped with a corresponding mechanism, which reduces the work intensity and improves the work efficiency.

[0011] In some embodiments, the plate changing vehicle includes a vehicle body and a walking part and a lifting part arranged on the vehicle body. The plate changing vehicle has a moving mode and a working mode. In the moving mode, the vehicle body moves on the track through the walking part. In the working mode, the vehicle body is lifted by the lifting part to make the walking part leave the track.

[0012] In some embodiments, the cutting device includes a transverse cutting chain saw and a longitudinal cutting chain saw, wherein the transverse cutting chain saw is used to cut the mortar layer between the track plate to be replaced and the adjacent track plate along the width direction of the track, and the longitudinal cutting chain saw is used to cut the track plate to be replaced along the length direction of the track.

[0013] In some embodiments, the rail lifting device includes a telescopic cylinder and a rail clamp, the telescopic cylinder is connected to the rail clamp, the rail clamp is used to clamp the rail, and the telescopic cylinder is provided with a stroke sensor, and the stroke sensor is used to detect the lifting height of the rail.

[0014] In some embodiments, there are multiple rail lifting devices, and the multiple rail lifting devices are spaced apart along the length direction of the track, and the heights of the rails lifted by the multiple rail lifting devices are increased sequentially from both ends to the middle.

[0015] In some embodiments, the lifting device includes a translation trolley and an electric hoist, the translation trolley is movable along the length direction of the track, the electric hoist is connected to the translation trolley, and the electric hoist is used to lift and transport the track plate.

[0016] In some embodiments, a storage portion is provided on the vehicle body, and the storage portion is used to store the track plates removed from the track to be replaced.

[0017] In some embodiments, a transport vehicle is further included, wherein the transport vehicle is located at one side of the plate changing vehicle, and the transport vehicle is used to transport the track slabs to be replaced or the track slabs to be laid.

[0018] In some embodiments, an auxiliary device is also included, which is arranged on the plate changing vehicle. The auxiliary device is used to push the track plate to be replaced after cutting along the width direction of the track. The auxiliary device includes a hand winch and a pushing cylinder, and the pushing cylinder is connected to the hand winch.

[0019] In some embodiments, it also includes an electronic control module, a hydraulic module and a power generation module arranged on the other side of the plate changing vehicle, wherein the electronic control module is used to regulate each device in the system, the hydraulic module is used to provide power for the hydraulic elements of each device in the system, and the power generation module is used to provide electricity for each device in the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a cross-sectional diagram of the track.

[0021] Figure 2 It is a schematic diagram of a plate replacement system for subway track plates according to an embodiment of the present invention.

[0022] Figure 3 yes Figure 2 Schematic cross-sectional view of AA.

[0023] Figure 4 yes Figure 2 Schematic diagram of the cross-section of BB.

[0024] Figure 5 yes Figure 2 Schematic cross-sectional view of CC.

[0025] Figure 6 yes Figure 2 Schematic cross-sectional view of DD.

[0026] Figure 7 yes Figure 2 Schematic cross-sectional view of EE.

[0027] Figure 8 yes Figure 2 Schematic cross-sectional view of FF.

[0028] Fig. 9 Schematic diagram of the transverse cutting operation according to an embodiment of the present invention.

[0029] Fig.10 It is a cross-sectional schematic diagram of the transverse cutting operation of an embodiment of the present invention.

[0030] Fig.11 Schematic diagram of the longitudinal cutting operation according to an embodiment of the present invention.

[0031] Fig.12 It is a cross-sectional schematic diagram of the longitudinal cutting operation of an embodiment of the present invention.

[0032] Fig.13 Schematic diagram of rail lifting operation according to an embodiment of the present invention.

[0033] Fig.14 It is a cross-sectional schematic diagram of the rail lifting operation according to an embodiment of the present invention.

[0034] Fig.15 1 is a first schematic diagram of a lifting operation according to an embodiment of the present invention.

[0035] Fig.16 2 is a second schematic diagram of the lifting operation according to the embodiment of the present invention.

[0036] Reference numerals:

[0037] 10-track plate, 10a-old track plate, 10b-new track plate, 20-rail, 30-mortar layer, 40-ballast bed, 50-segment, 60-equipment limit,

[0038] 1- plate changing vehicle, 11- vehicle body, 12- walking part, 13- lifting part, 14- storage part,

[0039] 2-cutting device, 21-transverse cutting chain saw, 22-longitudinal cutting chain saw,

[0040] 3-rail lifting device, 31-telescopic cylinder, 32-rail clamp, 33-pad,

[0041] 4-Lifting device, 41-Translation trolley, 42-Electric hoist,

[0042] 5- Transport vehicle,

[0043] 6- auxiliary device, 61- hand chain hoist, 62- push cylinder,

[0044] 7-Electronic control module, 8-Hydraulic module, 9-Power generation module. DETAILED DESCRIPTION

[0045] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0046] The following describes a plate replacement system for subway track plates according to an embodiment of the present invention in conjunction with the accompanying drawings.

[0047] It should be noted that the plate replacement system for subway track plates according to the embodiment of the present invention is integrated within the equipment limit 60 of the subway tunnel, and the track plates 10 are replaced by lifting the track.

[0048] like Figure 1 and Figure 2 As shown, the peripheral wall of the subway tunnel is surrounded by a pipe segment 50, and the track is composed of a ballast 40, a mortar layer 30, a track plate 10 and a rail 20 from bottom to top. For the convenience of description, the track plate 10 to be replaced on the track is called an old track plate 10a, and the track plate 10 to be laid is called a new track plate 10b.

[0049] like Figures 2 to 8 As shown, the plate changing system for subway track plates according to an embodiment of the present invention comprises: a plate changing vehicle 1, a cutting device 2, a rail lifting device 3 and a lifting device 4.

[0050] Among them, the cutting device 2 is arranged on the plate changing vehicle 1, and the cutting device 2 is used to cut the old track plate 10a on the track. It can be understood that since the overall size of the old track plate 10a is relatively large, after being cut into small pieces, it can be more conveniently carried by transportation tools, reducing the difficulties and costs during transportation. Cutting the old track plate 10a into small pieces can make it easier for the staff to remove it from the track, and it is also convenient to install the new track plate 10. The overall track plate 10 is relatively large in size. If it is removed as a whole at the construction site, it may cause certain interference and impact on the surrounding environment and facilities. After being cut into small pieces, this interference can be reduced. Small pieces of track plates 10 are easier to manage and store, which helps to reduce safety hazards at the construction site.

[0051] The rail lifting device 3 is provided on the plate changing vehicle 1, and is used to lift the rail 20 to separate the rail 20 from the track plate 10 to be replaced. The lifting device 4 is provided on the plate changing vehicle 1, and is used to remove the old track plate 10a cut from the track or to install a new track plate 10b.

[0052] It can be understood that during the plate replacement construction process, the system of the present invention first cuts the old track plate 10a into multiple pieces by the cutting device 2, then lifts the rail 20 by the rail lifting device 3, and finally removes the old track plate 10a by the lifting device 4, and lowers the new track plate 10b to the plate replacement area.

[0053] Therefore, the plate replacement system for subway track plates in the embodiment of the present invention integrates the system mechanism within the subway tunnel equipment limit 60 and adopts the construction method of lifting the track plate 10 to avoid the damage of the rail 20 caused by cutting the track plate. At the same time, the plate can be replaced quickly in a limited space, and the replacement speed is fast. Each process is equipped with a corresponding mechanism, which reduces the work intensity and improves the work efficiency.

[0054] In some embodiments, Figure 2 and Figure 4 As shown, the plate-changing vehicle 1 comprises a vehicle body 11 and a running part 12 and a lifting part 13 arranged on the vehicle body 11. The plate-changing vehicle 1 has a moving mode and a working mode. In the moving mode, the vehicle body 11 moves on the track through the running part 12. In the working mode, the vehicle body 11 is lifted by the lifting part 13 to make the running part 12 leave the track. Thus, the convenience and safety of the plate-changing operation are improved.

[0055] Optionally, the car body 11 is a box-type frame structure composed of a main beam and a vertical beam, and is arranged as a whole within the equipment limit 60. The walking part 12 is composed of a driving wheel set and a passive wheel set, so that the car body 11 can move freely on the rail 20. The lifting part 13 is composed of a lifting cylinder and a support leg. When the plate is replaced, the car body 11 is lifted to make the walking part 12 leave the rail surface.

[0056] Furthermore, there are two groups of running parts 12, which are respectively located at two ends of the vehicle body 11. There are four groups of lifting parts 13, which are located between the two groups of running parts 12 and are spaced apart along the length direction of the track.

[0057] In some embodiments, Figures 2 to 7 As shown, the cutting device 2 includes a transverse cutting chain saw 21 and a longitudinal cutting chain saw 22 .

[0058] The transverse cutting chain saw 21 is composed of a rotatable chain saw and a transverse sliding mechanism, and is used to cut the mortar layer 30 between the old track plate 10a and the adjacent track plate 10 along the width direction of the track, so as to facilitate the rapid removal of the track plate 10. The longitudinal cutting chain saw 22 is composed of a rotatable chain saw and a longitudinal sliding mechanism, and is used to cut the old track plate 10a into multiple pieces along the length direction of the track, so as to facilitate the removal of the old track plate 10a from under the rail 20 in a limited space.

[0059] For example, during the plate replacement operation, if Fig. 9 and Fig.10 As shown, the plate changing vehicle 1 is first moved to the transverse cutting position, and the mortar layer 30 between adjacent track plates 10 is cut off using the transverse cutting chain saw 21. Fig.11 and Fig.12 As shown, the plate changing vehicle 1 is then moved to the longitudinal cutting position, and the old track plate 10a is cut into three pieces by the longitudinal cutting chain saw 22.

[0060] In some embodiments, Figure 2 and Figure 5 As shown, the rail lifting device 3 includes a telescopic oil cylinder 31 and a rail clamp 32, and the telescopic oil cylinder 31 is connected to the rail clamp 32. The rail clamp 32 is used to clamp the rail 20, and the rail clamp 32 is provided with an anti-loosening lock to ensure the safety of the rail lifting process. The telescopic oil cylinder 31 is provided with a stroke sensor, which is used to detect the lifting height of the rail 20 in real time.

[0061] Optionally, there are multiple track lifting devices 3, and the multiple track lifting devices 3 are spaced apart along the length direction of the track, and the heights of the tracks lifted by the multiple track lifting devices 3 increase sequentially from the two ends to the middle, that is, the track lifting device 3 located in the middle has the highest height, and the track lifting devices 3 located at the two ends have the lowest height.

[0062] It is understandable that by gradually raising the track height, a smooth slope can be formed, and the load of the rail lifting device 3 can be evenly distributed, thereby avoiding damage to the rail 20 or the rail lifting device 3 due to excessive local pressure.

[0063] In some embodiments, Figure 2 and Figure 8As shown, the lifting device 4 includes a translation trolley 41 and an electric hoist 42. The translation trolley 41 is movable along the length direction of the track. The electric hoist 42 is connected to the translation trolley 41 and is used to lift and transport the track plate 10.

[0064] Optionally, the translation trolley 41 is composed of a wheel set, a frame, and a sprocket drive mechanism. The wheel set is not powered and is dragged by the sprocket drive mechanism. Buffer mechanisms are fixed at both ends of the main beam of the vehicle body 11, thereby improving the safety of the movement of the translation trolley 41. There are four electric hoists 42, which are respectively located at the four corners of the translation trolley 41, thereby improving the stability of the lifting track plate 10.

[0065] In some embodiments, Figure 2 and Figure 3 As shown, a storage part 14 is provided on the vehicle body 11, and the storage part 14 is used to store the old track plate 10a removed from the track. In addition, the system of the present invention also includes a transport vehicle 5, which is located at one side of the plate changing vehicle 1 and is used to transport the old track plate 10a or the new track plate 10b.

[0066] For example, during the plate changing operation, the transport vehicle 5 transports the new track plate 10b to the vicinity of the plate changing vehicle 1, and first places the dismantled old track plate 10a in the storage section 14 of the vehicle body 11, and uses the lifting device 4 to move the new track plate 10b from the transport vehicle 5 to the top of the plate changing area. After the new track plate 10b is installed, the old track plate 10a placed in the storage section 14 is moved to the transport vehicle 5 and transported to the outside of the subway tunnel.

[0067] In some embodiments, Figure 2 and Figure 8 As shown, the system of the present invention also includes an auxiliary device 6, which is arranged on the plate changing vehicle 1. The auxiliary device 6 is used to push the cut old track plate 10a along the width direction of the track, thereby facilitating the separation of the old track plate 10a from the mortar layer 30.

[0068] Optionally, the auxiliary device 6 includes a hand chain hoist 61 and a push cylinder 62, and the push cylinder 62 is connected to the hand chain hoist 61. The hand chain hoist 61 is used as an auxiliary tool in the process of removing or installing the track plate 10. When not in operation, the push cylinder 62 is suspended under the plate changing vehicle 1. During the plate changing operation, the push cylinders 62 are placed on both sides of the track plate 10, and the old track plate 10a is removed from under the rail 20 in blocks in cooperation with the lifting device 4.

[0069] In some embodiments, Figure 2 As shown, the system of the present invention further includes an electronic control module 7 , a hydraulic module 8 and a power generation module 9 which are arranged on the other side of the plate changing vehicle 1 .

[0070] Among them, the electric control module 7 (electric control cabinet) is used to control each device in the system, the hydraulic module 8 (pump station) is used to provide power for the hydraulic components of each device in the system, and the power generation module 9 (generator) is used to provide electricity for each device in the system.

[0071] In summary, the plate replacement process of the plate replacement system for subway track plates according to the embodiment of the present invention is as follows:

[0072] The first step, such as Fig. 9 and Fig.10 As shown, the plate changing vehicle 1 is driven to the mortar joint cutting area where the old track plate 10a and the adjacent track plate 10 are connected, the plate changing vehicle 1 is lifted up, and the mortar layer 30 between the old track plate 10a and the adjacent track plate 10 is cut off by the transverse cutting chain saw 21.

[0073] The second step is, Fig.11 and Fig.12 As shown, the plate changing vehicle 1 is driven to the longitudinal cutting area of ​​the old track plate 10a, the plate changing vehicle 1 is lifted up, and the old track plate 10a is longitudinally cut into three pieces by the longitudinal cutting chain saw 22, so as to facilitate the subsequent separation of the track plate 10 from the track.

[0074] The third step is Fig.13 and Fig.14 As shown, the plate changing vehicle 1 is driven to the plate changing area, the plate changing vehicle 1 is lifted, and after the rail 20 is vertically lifted to the designed height by the rail lifting device 3, a cushion block 33 is inserted under the rail 20 to improve the stability of the raised rail 20.

[0075] The fourth step is Fig.15 and Fig.16 As shown, the hand chain hoist 61 is used to push the push cylinder 62 to push the old track plate 10a horizontally, so that the track plate 10 is loosened and separated from the mortar layer 30. The old track plate 10a after cutting is moved out from under the rail 20 in blocks by the lifting device 4, the hand chain hoist 61 and the push cylinder 62. The old track plate 10a after removal is transported to the storage part 14 or the transport vehicle 5 by the translation trolley 41 and the lifting device 4, and then transported to the outside of the tunnel.

[0076] Step 5: Remove the mortar layer 30, and use the translation trolley 41 and the lifting device 4 to transport the new track plate 10b (block structure) to the plate replacement area for repositioning and installation. After the installation is completed, the pad 33 under the rail 20 is pulled out, the rail lifting device 3 puts down the rail 20, the legs of the lifting part 13 are recovered, the whole machine is moved out, the track installation is fine-tuned, and the mortar layer 30 is poured to complete the track plate 10 replacement work.

[0077] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0078] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0079] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0080] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0081] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0082] Although the above embodiments have been shown and described, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments by those of ordinary skill in the art are all within the scope of protection of the present invention.

Claims

1. A plate replacement system for subway track plates, characterized in that: include: Change the cart; A cutting device, the cutting device is arranged on the plate changing vehicle, and the cutting device is used to cut the track plate to be replaced on the track; A rail lifting device, which is arranged on the track plate changing vehicle and is used to lift the rails to separate them from the track plate to be replaced; A lifting device is arranged on the plate changing vehicle, and is used to remove the track plate to be replaced after being cut on the track or to assemble the track plate to be laid.

2. The plate replacement system for subway track plates according to claim 1, characterized in that: The plate changing vehicle includes a vehicle body and a running part and a lifting part arranged on the vehicle body. The vehicle body has a moving mode and a working mode. In the moving mode, the vehicle body moves on the track through the running part. In the working mode, the vehicle body is lifted by the lifting part to make the running part leave the track.

3. The plate replacement system for subway track plates according to claim 2, characterized in that: The cutting device comprises a transverse cutting chain saw and a longitudinal cutting chain saw. The transverse cutting chain saw is used to cut the mortar layer between the track plate to be replaced and the adjacent track plate along the width direction of the track, and the longitudinal cutting chain saw is used to cut the track plate to be replaced along the length direction of the track.

4. The plate replacement system for subway track plates according to claim 3, characterized in that: The rail lifting device comprises a telescopic oil cylinder and a rail clamp, wherein the telescopic oil cylinder is connected to the rail clamp, the rail clamp is used to clamp the rail, and a stroke sensor is provided on the telescopic oil cylinder, and the stroke sensor is used to detect the lifting height of the rail.

5. The plate replacement system for subway track plates according to claim 4, characterized in that: There are a plurality of rail lifting devices, which are spaced apart along the length direction of the track, and the heights of the rails lifted by the rail lifting devices are sequentially increased along the direction from both ends to the middle.

6. The plate replacement system for subway track plates according to claim 4, characterized in that: The lifting device comprises a translation trolley and an electric hoist. The translation trolley is movable along the length direction of the track. The electric hoist is connected to the translation trolley. The electric hoist is used to lift and transport the track plate.

7. The plate replacement system for subway track plates according to any one of claims 2 to 6, characterized in that: The vehicle body is provided with a storage portion, and the storage portion is used to store the track plates to be replaced that are removed from the track.

8. The plate replacement system for subway track plates according to claim 7, characterized in that: It also includes a transport vehicle, which is located at one side of the plate changing vehicle and is used to transport the track plates to be replaced or the track plates to be laid.

9. The plate replacement system for subway track plates according to claim 1, characterized in that: It also includes an auxiliary device, which is arranged on the plate changing vehicle and is used to push the cut track plate to be replaced along the width direction of the track. The auxiliary device includes a hand chain hoist and a pushing cylinder, and the pushing cylinder is connected to the hand chain hoist.

10. The plate replacement system for subway track plates according to claim 8, characterized in that: It also includes an electronic control module, a hydraulic module and a power generation module arranged on the other side of the plate changing vehicle. The electronic control module is used to regulate various devices in the system, the hydraulic module is used to provide power for the hydraulic elements of various devices in the system, and the power generation module is used to provide electricity for various devices in the system.

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