An apparatus and method for the production and transport of wireways in rolling stock

Abstract

The present application relates to the technical fields of locomotive and vehicle assembly, and particularly discloses a device for production and transportation of a center trough in a locomotive and vehicle and a use method thereof, which comprises an outer frame, an inner frame located on the outer frame and in sliding cooperation with the outer frame, and a support seat for supporting the outer frame; a sliding groove is arranged on the outer frame, and a limiting baffle is detachably installed on the outer frame and located at both ends of the sliding groove; the inner frame comprises an inner frame body in sliding cooperation with the sliding groove and a plurality of limiting assemblies arranged on the inner frame body along the length direction of the center trough and used for limiting the center trough; and a use method thereof is disclosed. The present application can effectively realize the assembly and transportation of the center trough, ensure that the center trough will not be deformed during the transportation, and effectively limit and fix the center trough, and has the advantages of simple structure and strong practicability.

Description

Technical Field

[0001] This invention relates to the field of locomotive and rolling stock assembly technology, and more specifically, to an apparatus and method for the production and transportation of centerline grooves in locomotives and rolling stock. Background Technology

[0002] Locomotives and rolling stock typically have cable trays installed inside for the centralized arrangement of various cables. These cable trays consist of several sections, each formed by bending metal sheets. During locomotive and rolling stock production, the cable tray sections are first assembled into a complete cable tray. Then, various cables are placed into the complete cable tray and bundled in place. Finally, the assembled cable tray assembly is transported to the interior of the locomotive or rolling stock to complete the connection and installation between the cable tray and the car body.

[0003] The cable tray components are over ten meters long. After assembly, they have extremely poor rigidity and are very prone to bending and deformation during assembly and transportation. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an apparatus and a method for using the production and transportation of centerline grooves for locomotives and rolling stock;

[0005] The solution adopted by this invention to solve the technical problem is:

[0006] An apparatus for the production and transportation of centerline grooves for locomotives and rolling stock includes an outer frame, an inner frame located on the outer frame and slidingly engaged with the outer frame, and a support base for supporting the outer frame.

[0007] A sliding groove is provided on the outer frame, and limit stops are detachably installed on the outer frame and at both ends of the sliding groove;

[0008] The inner frame includes an inner frame body that slides with the trough and multiple sets of limiting components arranged on the inner frame body along the length of the trough for limiting the trough.

[0009] In some possible implementations,

[0010] Multiple sets of movable plates are provided on the inner frame and along the length of the groove. The multiple sets of movable plates slide in cooperation with the inner frame along the length of the groove and the top surface forms the groove assembly plane.

[0011] In some possible implementations,

[0012] The limiting assembly includes two sets of limiting rods that are detachably mounted on the inner frame and form a cavity between them.

[0013] In some possible implementations,

[0014] The outer frame includes a frame body, a support plate mounted on the frame body, and side frames symmetrically arranged along the rectangle of the frame body and mounted on the frame body; the support plate is located between the two sets of side frames and cooperates with the two sets of side frames to form a sliding groove; the limiting bracket is detachably mounted on the frame body.

[0015] In some possible implementations,

[0016] Lifting lugs are provided on each of the two sets of side frames; a positioning pin is provided at the bottom of the frame body, and a positioning pin hole is provided on the support base to cooperate with the positioning pin; the support base and the frame body are connected by the positioning pin.

[0017] In some possible implementations,

[0018] The support base includes a support body and limiting plate assemblies symmetrically arranged on the support body; the two sets of limiting plate assemblies cooperate to form a limiting groove for mounting the frame body; the positioning pin hole is provided on the support body.

[0019] In some possible implementations,

[0020] The limiting groove has a V-shaped structure, with its larger end located on the side away from the support body.

[0021] In some possible implementations,

[0022] The positioning pin hole has an oblong shape and its long axis is set along the long direction of the groove.

[0023] A method of using the apparatus for the production and transportation of centerline grooves in locomotives and rolling stock as described above specifically includes the following steps:

[0024] Step S1: Assemble the cable trays on the inner frame movable cable tray assembly platform;

[0025] Step S2: After the cable tray is assembled, move the inner frame and the cable tray on the inner frame into the slide groove; seal both ends of the slide groove with the limit stop;

[0026] Step S3: Separate the outer frame from the support base, and hoist the entire assembly of the outer frame, inner frame, and cable tray to the transport equipment;

[0027] Step S4: Transport the entire assembly of the outer frame, inner frame, and cable tray to the cable tray installation area using transport equipment. Install the cable tray by transferring the structure formed by the inner frame and cable tray or the structure formed by the outer frame, inner frame, and cable tray into the vehicle body.

[0028] In some possible implementations,

[0029] The transfer in step S4 specifically includes transferring from the top of the vehicle body or transferring from the end face of the vehicle body;

[0030] Among them, when transferring from the top of the vehicle body to the inside of the vehicle body, the entire structure formed by the outer frame, inner frame, and cable tray is transferred from the top of the vehicle body to the inside of the vehicle body;

[0031] The specific steps involved in transferring the vehicle from the end face to the body are as follows:

[0032] Step S41: Install a support base at the end face of the vehicle body, and hoist the entire assembly formed by the outer frame, inner frame, and cable tray onto the support base, wherein the bottom surface of the cable tray is coplanar with the inner surface of the bottom of the vehicle body.

[0033] Step S42: Remove the limiting stop on the side of the outer frame closest to the vehicle body, control the inner frame to move towards the inside of the vehicle body and enter the vehicle body until it moves to the designated position.

[0034] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0035] The cable tray transport frame formed by the inner and outer frames in this invention provides a reliable load-bearing structure for the cable tray, effectively ensuring that the cable tray does not bend or deform during these processes.

[0036] In this invention, the inner frame serves as a load-bearing structure to provide stable support for the cable tray, while the outer frame serves as a load-bearing structure for the inner frame, providing support for both the inner frame and the cable tray components. The inner frame can be pushed out or pushed in as a whole from the sliding groove of the outer frame, providing independent support for the cable tray components during cable tray assembly, storage, and installation.

[0037] The fence structure formed by the outer frame in this invention effectively restricts the forward, backward, left, and right movement of the inner frame, ensuring transportation safety;

[0038] The lifting lugs on the outer frame of this invention enable the cable tray transport frame to be hoisted as a whole; the positioning pins on the lower side of the outer frame are used to limit the cable tray transport frame, ensuring that it is parallel to the vehicle body or cable tray assembly platform after placement, and that the end of the cable tray transport frame is closely fitted to the vehicle body or cable tray assembly platform, so that the inner frame can be pushed in or pushed out smoothly.

[0039] The movable plate at the top of the inner frame in this invention provides a stable assembly plane for the wire trough. It can also be adjusted to a suitable position according to the connection position of each segment in the wire trough to avoid the connection position, so that the wire trough can be completely flat on the assembly plane and avoid deformation.

[0040] The rollers at the bottom of the inner frame in this invention can reduce the frictional resistance when the inner frame moves, and can be easily pushed by manpower to move on the top surface of the outer frame bearing plate, the cable tray assembly platform and the bottom surface of the vehicle body; the limit bars on both sides of the top of the inner frame can effectively limit the displacement of the cable tray during transportation and ensure that the cable tray will not slip out and fall off.

[0041] In this invention, the positioning pin hole and positioning pin together realize the positioning and guiding functions of the wire trough transport frame; the V-shaped structure, together with the positioning pin and positioning pin hole, keeps the wire trough transport frame parallel to the vehicle body or wire trough assembly platform, and ensures that the end of the wire trough transport frame fits closely with the vehicle body or wire trough assembly platform, so that the inner frame can be pushed in or pushed out smoothly. Attached Figure Description

[0042] Figure 1 This is a schematic diagram of the structure of the present invention;

[0043] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0044] Figure 3 This is a schematic diagram of the inner frame and cable tray in this invention;

[0045] Figure 4 This is a schematic diagram of the structure of the outer frame and support base in this invention;

[0046] Figure 5 This is a schematic diagram of the support base in this invention;

[0047] Figure 6 This is a side view of the outer frame and inner frame in this invention;

[0048] Figure 7 This is a schematic diagram illustrating the use of the present invention in conjunction with a cable tray assembly platform;

[0049] Figure 8 This is a schematic diagram illustrating the process of transferring goods from the top of a vehicle using the present invention;

[0050] Figure 9 This is a schematic diagram illustrating the transfer of the present invention from the end of the vehicle body.

[0051] Among them: 1-outer frame, 11-frame body, 12-bearing plate, 13-lifting lug, 14-slide groove, 2-inner frame, 21-inner frame body, 22-movable plate, 23-limiting rod, 24-roller, 3-support seat, 4-limiting stop, 10-line groove, 20-vehicle body, 30-line groove assembly platform. Detailed Implementation

[0052] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. The terms "first," "second," and similar terms used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, "a" or "one," etc., do not indicate a quantity limitation, but rather indicate the existence of at least one. In the implementation of this application, "and / or" describes the association relationship of related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. In the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more. For example, multiple positioning posts refer to two or more positioning posts. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0053] The present invention will now be described in detail.

[0054] like Figures 1-6 As shown:

[0055] An apparatus for the production and transportation of cable trays 10 in locomotives and rolling stock includes an outer frame 1, an inner frame 2 located on the outer frame 1 and slidably engaged with the outer frame 1, and a support base 3 for supporting the outer frame 1; the outer frame 1 and the inner frame 2 form a cable tray transport frame.

[0056] A slide groove 14 is provided on the outer frame 1, and limit stops 4 are detachably installed on the outer frame 1 and at both ends of the slide groove 14.

[0057] The inner frame 2 includes an inner frame 2 body that slides with the slide groove 14, and multiple sets of limiting components arranged on the inner frame 2 body along the length direction of the wire groove 10 for limiting the wire groove 10.

[0058] During the assembly and processing of the cable tray 10, the inner frame 2 is installed on the cable tray assembly platform 30. The inner frame 2 serves as a load-bearing structure to provide stable support for the cable tray 10. The outer frame 1 serves as a load-bearing structure for the inner frame 2, providing support for both the inner frame 2 and the cable tray 10. The inner frame 2 can be pushed out or pushed in as a whole from the slide groove 14 of the outer frame 1, providing individual support for the cable tray 10 component during the assembly, storage, and installation of the cable tray 10.

[0059] The limiting components installed on the inner frame 2 will limit the assembled wire trough 10 on the inner frame 2 to prevent it from moving;

[0060] The limiting brackets 4 set on the outer frame 1 are located at both ends of the slide groove 14, which will restrict the inner frame 2 and the wire groove 10 from moving out of the slide groove 14 along the length direction of the slide groove 14; the inner frame 2 is located in the slide groove 14, and the two sides of the slide groove 14 will restrict the position of the inner frame 2 along the width direction of the slide groove 14.

[0061] The support base 3 will ensure that the inner frame 2 can move and be transferred smoothly when the inner frame 2 is transferred from the cable tray assembly platform 30 to the outer frame 1, and from the outer frame 1 to the interior of the vehicle body 20.

[0062] In some possible implementations, in order to effectively support the cable tray 10;

[0063] Multiple sets of movable flat plates 22 are provided on the inner frame 2 body along the length direction of the wire groove 10. The multiple sets of movable flat plates 22 slide in cooperation with the inner frame 2 body along the length direction of the wire groove 10 and the top surface forms the assembly plane of the wire groove 10.

[0064] Furthermore, the inner frame 2 has a rectangular truss structure, and the wire trough 10 is formed by connecting multiple segments in sequence with connecting bolts. The movable plate 22 is slidably installed on the inner frame 2. By moving the movable plate 22, the movable plate 22 can avoid the connection point of two adjacent segments.

[0065] The top surfaces of multiple movable flat plates 22 form an assembly plane for the wire groove 10, which effectively supports the wire groove 10, allowing the wire groove 10 to be placed completely flat on the assembly plane and preventing deformation.

[0066] Furthermore, in order to effectively realize the sliding of the inner frame 2 in the slide groove 14, a roller 24 is provided at the bottom of the inner frame 2 body; the roller 24 can reduce the frictional resistance when the inner frame 2 moves, and can be easily moved by human push.

[0067] Furthermore, a slide rail is provided in the slide groove 14 along the length of the slide groove 14, and a slide track is provided on the roller 24 to cooperate with the slide rail, so as to guide the sliding direction of the inner frame 2.

[0068] In some possible implementations,

[0069] The limiting assembly includes two sets of limiting rods 23 that are detachably mounted on the inner frame 2 body and form a cavity between them.

[0070] The limiting rod 23 is located on the inner frame 2 body, and the wire groove 10 is installed on the movable plate 22 and located in the cavity. The limiting rod 23 will limit the wire groove 10 on both sides along the width direction of the slide groove 14.

[0071] The limiting rod 23 can be detachably installed on the inner frame 2. When in use, the installation position of the limiting rod 23 can be adjusted according to the position of the wire trough 10 to effectively limit the displacement of the wire trough 10 during transportation and transfer, and ensure that the wire trough 10 will not slip out and fall.

[0072] In some possible implementations, in order to effectively enable the inner frame 2 to slide on the outer frame 1 and effectively prevent the inner frame 2 from slipping off the outer frame 1;

[0073] The outer frame 1 includes a frame body 11, a bearing plate 12 mounted on the frame body 11 for supporting the inner frame 2, and side frames symmetrically arranged along the rectangle of the frame body 11 and mounted on the frame body 11; the bearing plate 12 is located between the two sets of side frames and cooperates with the two sets of side frames to form a sliding groove 14; the limiting bracket 4 is detachably mounted on the frame body 11.

[0074] The top surface of the support plate 12 forms a sliding groove 14 with the two sets of side frames, and the slide rail is installed on the support plate 12; the formed sliding groove 14 is a groove, and the side frames will limit the inner frame 2 along its width direction to prevent it from moving; the limiting bracket 4 is installed on the frame body 11 and located at both ends of the sliding groove 14 to form a fence structure to prevent the inner frame 2 from moving along the length direction of the groove 10. Through the above settings, the inner frame 2 will not slip off the outer frame 1;

[0075] In some possible implementations, in order to effectively hoist the outer frame 1 and to ensure that the support base 3 can effectively support the outer frame 1 during transportation;

[0076] Lifting lugs 13 are respectively provided on the two sets of side frames; the lifting lugs 13 are provided on the side frames and are used to connect with the lifting equipment.

[0077] In order to effectively connect the support base 3 and the outer frame 1;

[0078] A positioning pin is provided at the bottom of the frame body 11, and a positioning pin hole is provided on the support base 3 to cooperate with the positioning pin; the support base 3 and the frame body 11 are connected by the positioning pin.

[0079] In some possible implementations,

[0080] The support base 3 includes a support body and symmetrically arranged limiting plate assemblies on the support body; the two sets of limiting plate assemblies cooperate to form a limiting groove for mounting the frame body 11; the positioning pin hole is provided on the support body.

[0081] The support base 3 includes various structures with different heights but the same structure. In use, different height support bases 3 can be selected to cooperate with the outer frame 1 according to the height of the cable tray assembly platform 30 and the height position of the inner surface of the bottom surface of the vehicle body 20. This ensures that the bearing plate 12 is coplanar with the inner surface of the bottom surface of the cable tray assembly platform 30 / vehicle body 20 during use, so that the cable tray 10 can be smoothly transported through the inner frame 2.

[0082] In some possible implementations,

[0083] The limiting groove has a V-shaped structure, with its larger end located on the side away from the support body.

[0084] The V-shaped structure, positioning pins, and pin holes work together to keep the inner frame 2, outer frame 1, vehicle body 20, or cable tray assembly platform 30 parallel, and ensure that the end of the cable tray transport frame fits closely with the vehicle body 20 or cable tray assembly platform 30, so that the inner frame 2 can be pushed in or pushed out smoothly.

[0085] In some possible implementations,

[0086] The positioning pin hole has an oblong shape and its long axis is set along the long direction of the groove 10.

[0087] The positioning pin holes and positioning pins work together to achieve the positioning and guidance of the outer frame 1;

[0088] The method of using the above-mentioned device for the production and transportation of the centerline trough 10 in locomotives and rolling stock specifically includes the following steps:

[0089] Step S1: Assemble the cable tray 10 in the assembly area of ​​the inner frame 2 moving cable tray assembly platform 30;

[0090] like Figure 7 As shown, during assembly, the two sets of support bases 3 are placed in the appropriate positions in the assembly area of ​​the wire trough assembly platform 30, and the height of the support bases 3 is effectively controlled so that the bearing plate 12 is coplanar with the wire trough assembly platform 30.

[0091] Then, the cable tray transport frame is hoisted to the top of the support base 3 and slowly lowered so that the positioning pin at the bottom of the outer frame 1 is inserted into the positioning pin hole at the top of the support base 3, and the other side of the cable tray transport frame slides into the V-shaped structure of another set of support bases 3.

[0092] Before it is fully placed in place, the operator pushes the cable tray transport frame so that the end face of the outer frame 1 is in contact with the side of the cable tray assembly platform 30, and then operates the hoisting equipment to place the cable tray transport frame completely on the support base 3. Under the combined constraint of the positioning pin, positioning pin hole and V-shaped limiting structure, the cable tray transport frame remains parallel to the cable tray assembly platform 30;

[0093] After the cable tray transport frame is placed in place, the movable stop at the end of the outer frame 1 is pulled out, and the inner frame 2 is pushed out from the bearing plate 12 of the outer frame 1 to the cable tray assembly platform 30; then the cable tray 10 is assembled on the inner frame 2.

[0094] Adjust the position of the movable plate 22 of the inner frame 2 according to the length of each segment, and avoid the connecting bolts of the wire trough 10 to make all wire trough 10 segments flat.

[0095] After the segments are connected to form the whole cable tray 10, the cable is laid and tied and fixed. The movable stop bar is reinserted into the top of the inner frame 2 to complete the assembly of the cable tray 10 components.

[0096] After the cable tray 10 is assembled, the operator will push the inner frame 2 containing the cable tray 10 to the storage area of ​​the cable tray assembly platform 30 for temporary storage.

[0097] The baffle structure welded to the side of the cable tray assembly platform 30 can limit the displacement of the inner frame 2 and prevent it from falling off the cable tray assembly platform 30 due to excessive pushing inertia; the upper part of the cable tray assembly platform 30 is a smooth and flat stainless steel table structure, and the inner frame 2 can slide when a small pushing force is applied, which reduces the labor intensity.

[0098] Step S2: After the cable tray 10 is assembled, the inner frame 2 and the cable tray 10 on the inner frame 2 are moved into the slide 14; the two ends of the slide 14 are closed by the limiting stop 4;

[0099] The inner frame 2, on which the wire trough 10 is placed, is pushed from the wire trough assembly platform 30 onto the support plate 12 of the outer frame 1; the limiting stop 4 is inserted to close the end of the slide 14 along the length of the wire trough 10.

[0100] Step S3: Separate the outer frame 1 from the support base 3, and hoist the entire assembly formed by the outer frame 1, inner frame 2, and cable tray 10 to the transport equipment;

[0101] Connect the hoisting equipment to the lifting lug 13 and remove the positioning pin at the bottom of the outer frame 1;

[0102] Mobile hoisting equipment is used to hoist the wire trough transport frame containing the wire trough 10 to other transport equipment;

[0103] The limiting stop bar at the top of the inner frame 2 can restrict the displacement of the cable tray 10, and the fence structure formed by the outer frame 1 can restrict the displacement of the inner frame 2, thereby ensuring that the cable tray 10 and the inner frame 2 will not slip from the air during the hoisting process.

[0104] Step S4: Transport the entire assembly of the outer frame 1, inner frame 2, and cable tray 10 to the cable tray 10 installation area using transport equipment. Install the cable tray 10 by transferring the structure formed by the inner frame 2 and cable tray 10 or the structure formed by the outer frame 1, inner frame 2, and cable tray 10 into the vehicle body 20.

[0105] The transfer in step S4 specifically includes transferring from the top of the vehicle body 20 or transferring from the end face of the vehicle body 20.

[0106] Among them, such as Figure 8 As shown, when transferring from the top of the vehicle body 20 to the inside of the vehicle body 20, the entire assembly formed by the outer frame 1, the inner frame 2, and the cable tray 10 is lifted by a hoisting device and transferred from the top of the vehicle body 20 to the inside of the vehicle body 20.

[0107] After entering from the top of the vehicle body 20, place it flat on the bottom surface of the vehicle body 20, pull out the limiting stop bar at the top of the inner frame 2, and complete the connection and installation of the wire channel 10 with the vehicle body 20;

[0108] After re-inserting the limit stop, lift the cable tray transport frame 20 mm off the vehicle body to complete the installation.

[0109] like Figure 9 As shown, the specific steps involved in transferring the material from the end face of the vehicle body 20 to inside the vehicle body 20 are as follows:

[0110] Step S41: Install support base 3 at the end face of vehicle body 20, and hoist the whole formed by outer frame 1, inner frame 2 and wire groove 10 onto support base 3, wherein the bottom surface of slide groove 14 is coplanar with the inner surface of bottom surface of vehicle body 20.

[0111] Step S42: Remove the limiting stop 4 on the side of the outer frame 1 closest to the vehicle body 20, control the inner frame 2 to move towards the inside of the vehicle body 20 and enter the vehicle body 20 until it moves to the designated position.

[0112] That is, at least two sets of support seats 3 are placed at appropriate positions at the ends of the vehicle body 20, and the bearing plate 12 is coplanar with the inner surface of the bottom of the vehicle body 20.

[0113] The cable tray transport frame containing the cable tray 10 is placed on the support base 3 by hoisting;

[0114] During placement, the positioning pins, positioning pin holes and V-shaped limiting structures are used to adjust the position so that the wire trough transport frame is parallel to the vehicle body 20. The end face of the outer frame 1 is in contact with the end face of the vehicle body 20, so that the inner frame 2 can be smoothly pushed into the vehicle body 20.

[0115] Remove the limiting bracket 4 on the side of the outer frame 1 closest to the vehicle body 20;

[0116] Push the inner frame 2 containing the wire channel 10 component into the vehicle body 20;

[0117] After moving to the designated position, pull out the limit bar at the top of the inner frame 2 to complete the connection and installation of the wire groove 10 and the vehicle body 20;

[0118] Reinsert the limit stop bar, push the inner frame 2 back into the cable tray transport frame, and lift the cable tray transport frame to complete the installation.

[0119] This invention is not limited to the specific embodiments described above. The invention extends to any new feature or combination disclosed in this specification, as well as any new method or process step or combination disclosed herein.

Claims

1. An apparatus for the production and transportation of centerline grooves in locomotives and rolling stock, characterized in that, It includes an outer frame, an inner frame located on the outer frame and slidingly engaged with the outer frame, and a support base for supporting the outer frame; A sliding groove is provided on the outer frame, and limit stops are detachably installed on the outer frame and at both ends of the sliding groove; The inner frame includes an inner frame body that slides with the slide groove, and multiple sets of limiting components arranged on the inner frame body along the length direction of the trough for limiting the trough. Multiple sets of movable plates are provided on the inner frame and along the length of the groove. The multiple sets of movable plates slide in cooperation with the inner frame along the length of the groove and the top surface forms the groove assembly plane. The outer frame includes a frame body, a support plate mounted on the frame body, and side frames symmetrically arranged along the rectangle of the frame body and mounted on the frame body; the support plate is located between two sets of side frames and cooperates with the two sets of side frames to form a sliding groove; the limiting bracket is detachably mounted on the frame body; Lifting lugs are provided on each of the two sets of side frames; a positioning pin is provided at the bottom of the frame body, and a positioning pin hole is provided on the support base to cooperate with the positioning pin; the support base and the frame body are connected by the positioning pin. The support base includes a support body and limiting plate assemblies symmetrically arranged on the support body; the two sets of limiting plate assemblies cooperate with each other to form a limiting groove for mounting the frame body; the positioning pin hole is provided on the support body; The limiting groove has a V-shaped structure, with its larger end located on the side away from the support body.

2. The apparatus for producing and transporting centerline grooves in locomotives and rolling stock according to claim 1, characterized in that, The limiting assembly includes two sets of limiting rods that are detachably mounted on the inner frame and form a cavity between them.

3. The apparatus for producing and transporting centerline grooves in locomotives and rolling stock according to claim 1, characterized in that, The positioning pin hole has an oblong shape and its long axis is set along the long direction of the groove.

4. A method of using the apparatus for the production and transportation of centerline grooves in locomotives and rolling stock as described in any one of claims 1-3, characterized in that, Specifically, the following steps are included: Step S1: Assemble the cable trays on the inner frame movable cable tray assembly platform; Step S2: After the cable tray is assembled, move the inner frame and the cable tray on the inner frame into the slide groove; seal both ends of the slide groove with the limit stop; Step S3: Separate the outer frame from the support base, and hoist the entire assembly of the outer frame, inner frame, and cable tray to the transport equipment; Step S4: Transport the entire assembly of the outer frame, inner frame, and cable tray to the cable tray installation area using transport equipment. Install the cable tray by transferring the structure formed by the inner frame and cable tray or the structure formed by the outer frame, inner frame, and cable tray into the vehicle body.

5. The method of using the device for the production and transportation of centerline grooves in locomotives and rolling stock according to claim 4, characterized in that, The transfer in step S4 specifically includes transferring from the top of the vehicle body or transferring from the end face of the vehicle body; Among them, when transferring from the top of the vehicle body to the inside of the vehicle body, the entire structure formed by the outer frame, inner frame, and cable tray is transferred from the top of the vehicle body to the inside of the vehicle body; The specific steps involved in transferring the vehicle from the end face to the body are as follows: Step S41: Install a support base at the end face of the vehicle body, and hoist the entire assembly formed by the outer frame, inner frame, and cable tray onto the support base, wherein the bottom surface of the cable tray is coplanar with the inner surface of the bottom of the vehicle body. Step S42: Remove the limiting stop on the side of the outer frame closest to the vehicle body, control the inner frame to move towards the inside of the vehicle body and enter the vehicle body until it moves to the designated position.

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