Rail transit cable installation device and installation method

Abstract

The invention relates to a rail transit cable installation device and method, the rail transit cable installation device comprises a walking trolley, a cable reel is arranged on the walking trolley, a cable is arranged on the cable reel, the rail transit cable installation device further comprises a pay-off box, a passing hole is formed in the pay-off box, the cable penetrates into the passing hole, a bridge is arranged in the pay-off box, and the cable reel is provided with a cable. A plurality of roll shafts for cables to pass through are arranged on the bridge frame, a power mechanism for conveying the cables is arranged on the outer side face of the pay-off box, supporting legs are arranged on the lower end face of the pay-off box, the pay-off box is fixed to the walking trolley through the supporting legs, and the middle protection mechanism comprises a supporting frame connected with the supporting legs. A fixing ring is arranged at the end of the supporting frame, a holder is arranged on the upper end face of the fixing ring, and a plurality of balls are arranged at the upper end of the holder, and the cable pay-off device has the advantages that cable pay-off can be achieved, and manual cable laying can be replaced.

Description

Technical Field

[0001] The present invention relates to the technical field of cable installation, and in particular to a rail transit cable installation device and an installation method. Background Art

[0002] Common rail transit includes traditional railways, subways, light rails and trams. In order to realize the electrification of rail transit, cables are needed. However, a large number of cables are needed in the existing technology. At present, the method used for laying cables for rail transit is to place the cables on the ground by a trolley, and then manually place the cables on the cable laying rack. This method has low working efficiency and is easy to damage the cables.

[0003] The patent publication number CN118554330A was retrieved, and the patent name is a public material of a cable laying device for rail transit electromechanical installation and a method of using the same, and specifically discloses a cable laying device for rail transit electromechanical installation, including a main support frame and two sets of auxiliary support frames slidably connected to the outer wall of the main support frame and symmetrically distributed, and also includes: a load-bearing upright, fixedly connected to the top wall of the auxiliary support frame away from the end of the main support frame, and the side wall of the load-bearing upright is also rotatably connected to a guide wheel; a bearing component, the bearing component is slidably connected to the outer wall of the load-bearing upright, and is used to align the cable The tray is used to carry the load, and the side wall of the load-bearing component is also provided with a wire component for guiding the cable; a sliding rod is slidably arranged between the two groups of wire components, and the center position of the side wall of the sliding rod is also fixedly connected to a wire rack for guiding the cable; a limiting guide rod is fixedly connected to the inner wall of the load-bearing vertical rod, used to strengthen the supporting force of the load-bearing vertical rod and limit the load-bearing component; wherein, the two groups of auxiliary support frames and the load-bearing vertical rod are both provided with installation grooves, and the top walls of the two groups of auxiliary support frames are also provided with sliding grooves corresponding to the installation grooves, and the side walls of the two groups of auxiliary support frames are both provided with a A reinforcement component of the slide; an expansion support component, which is slidably arranged inside the mounting groove and is used to increase the supporting force of the auxiliary support frame, and the expansion support component is linked with the reinforcement component; an adjustment component, which includes a double-threaded adjustment screw rotatably connected to the side wall of the main support frame through a connecting piece and an adjustment motor fixedly connected to the side wall of the main support frame, and the double-threaded adjustment screw is respectively connected to the two groups of auxiliary support frame threads through two groups of external threads arranged on the outer wall, and the output end of the adjustment motor is fixedly connected to the double-threaded adjustment screw; a transmission component is slidably connected to the auxiliary support through the mounting groove The inner wall of the frame, and the transmission component is used for the linkage between the load-bearing component and the expansion support component; the lifting component is arranged on the top wall of the auxiliary support frame, and is used to adjust the height of the load-bearing component. The lifting component cooperates with the guide wheel, and the driving component comprises a mounting frame fixedly connected to the center position of the top wall of the main support frame, a driving shaft rotatably connected to the inner wall of the mounting frame and a lifting motor fixedly connected to the side wall of the main support frame, and the lifting motor is connected to the driving shaft through a belt and pulley group, and the outer wall of the driving shaft is also provided with a limiting convex rod compatible with the two groups of lifting components.

[0004] By analyzing the above-mentioned public materials, it can be known that the above-mentioned device can realize the installation of rail transit cables, but the structure is too complicated and it is not easy to be used in conjunction with a traveling trolley. The cables in rail transit are to be installed on the cable laying rack on the inner side of the channel and must be fixed. The public materials cannot meet the above requirements. Summary of the invention

[0005] In view of this, the present invention provides a rail transit cable installation device, which can not only realize the cable laying, but also replace manual laying of the cable.

[0006] In order to solve the above technical problems, the present invention provides a rail transit cable installation device, including a traveling trolley, a cable reel is provided on the traveling trolley, a cable is provided on the cable reel, and further comprising: A wire-releasing box, wherein a passage hole is provided on the wire-releasing box, and a cable is passed through the passage hole. A bridge is provided inside the wire-releasing box, and a plurality of rollers for the passage of cables are provided on the bridge. A power mechanism for conveying cables is provided on the outer side of the wire-releasing box, and a support leg is provided on the lower end surface of the wire-releasing box, and the support leg is fixed on the walking trolley; An intermediate protection mechanism, the intermediate protection mechanism comprising a support frame connected to the support legs, a fixing ring being arranged at the end of the support frame, a retaining frame being arranged on the upper end surface of the fixing ring, and a plurality of balls being arranged at the upper end of the retaining frame; A wire-releasing lifting mechanism, the wire-releasing lifting mechanism comprises a lifting platform arranged on the upper end surface of the walking trolley, a clearance hole is arranged below the lifting platform, a moving block is arranged in the clearance hole, the upper end of the moving block is connected to the lifting platform, the moving block is connected to a third lead screw, a third motor is arranged at the end of the third lead screw, the lower end of the third motor is connected to a support plate, and the lower end surface of the support plate is connected to a hydraulic cylinder; The wire outlet mechanism comprises a slide rail arranged on the upper end surface of the lifting platform, the slide rail is connected to a wire outlet box, the wire outlet box is connected to a first lead screw, and the first lead screw is connected to a first motor fixed on the lifting platform.

[0007] The beneficial effects of the above scheme are as follows: the cable is first placed in the wire-laying box, and under the action of the power mechanism, the rear part of the cable is gradually fed into the wire-laying box, and the cable coming out of the wire-laying box is inserted into the fixing ring; the cable coming out of the fixing ring is inserted into the outlet box; after the action of the first motor, the cable is fed to the cable laying frame; the setting of the lifting platform enables the height of the lifting platform to be adjusted by operating the hydraulic cylinder when laying the previous layer; By setting up a wire-laying box, the placement of cables becomes smoother; at the same time, it can also replace manual cable laying. Through the intermediate protection mechanism and the wire-laying lifting mechanism, the intermediate protection mechanism can solve the large span problem between the wire-laying box and the outlet box, and the purpose of placing the cable directly on the cable laying frame can be achieved.

[0008] Furthermore, the wire pay-off box is a hollow structure, and a passage hole is arranged on the opposite side of the wire pay-off box, and the passage hole faces the direction of the cable reel. The bridge is connected to the passage hole on the wire pay-off box, and the bridge is a U-shaped groove structure. The rollers are evenly distributed at the bottom of the bridge and connected to the side walls of the bridge through bearings.

[0009] The beneficial effect of the above solution is that by providing the roller, the friction between the cable and the bridge can be effectively reduced.

[0010] Furthermore, the power mechanism includes a fixed plate arranged on the outer side of the wire release box, a T-shaped groove is arranged on the fixed plate, and a connecting plate is connected to the T-shaped groove, a clamping roller is connected to the connecting plate through a bearing, and a second motor is connected to the end of the clamping roller, the second motor is fixedly connected to the connecting plate, and the clamping roller is driven to rotate by the second motor, a threaded hole is arranged on the connecting plate, and the connecting plate is connected to the second lead screw through the threaded hole, a motor is arranged on the end of the second lead screw, and the other end of the second lead screw is connected to the fixed plate through a bearing, the motor of the second lead screw is connected to the fixed plate, and the forward or backward movement of the clamping roller is realized by the second motor.

[0011] The beneficial effect of the above solution is that by operating the second motor, the connecting plate can be moved toward the middle direction and can also move to both sides at the same time, that is, the distance between the clamping rollers can be adjusted.

[0012] Furthermore, the lower end of the support leg is fixed to the upper end surface of the walking trolley, there are two support legs, which are vertically arranged, and a support frame is connected to the middle position of the support leg. The support frame is horizontally arranged, and a horizontally placed fixing ring is arranged at the outer end of the support frame. The outer side surface of the fixing ring is fixedly connected to the support frame, and a retaining frame is fixedly arranged on the upper and lower end surfaces of the fixing ring. The retaining frame has a circular ring structure, and a cylindrical rod is arranged on the side of the circular ring, and a rolling ball is installed at the end of the cylindrical rod.

[0013] Furthermore, the give way hole is arranged on the upper end surface of the walking trolley and is connected to the cavity structure arranged on the walking trolley. The upper end of the moving block is fixedly connected to the lifting platform and is connected to the lower end surface of the lifting platform. A threaded hole is arranged on the moving block. A third screw is arranged in the threaded hole. After the third screw is driven by the third motor, it is used for horizontal movement of the lifting platform. A limit rod is arranged on the moving block and horizontally penetrates the moving block. The limit rod is slidably connected to the moving block.

[0014] Furthermore, the structure of the outlet box is the same as that of the wire release box. The outlet box is slidably connected to the slide rail, and the connection is T-shaped. The bottom of the outlet box is connected to the first screw through a thread. The first screw is driven by the first motor to horizontally move the outlet box.

[0015] Furthermore, the traveling trolley is placed on steel rails laid by rail transit, both sides of the traveling trolley are rail transit passages, and a cable laying frame for supporting cables is provided on the rail transit passage.

[0016] A rail transit cable installation method, with the aid of the rail transit cable installation device, comprises the following steps: 1) inserting the cable into a wire-release box, operating a second motor, and driving a clamping roller to gradually feed the cable into the wire-release box under the rotation of the second motor; 2) The cable coming out of the wire box is inserted into the fixing ring; 3) The cable coming out of the fixing ring is passed into the outlet box; 4) Operate the first motor to feed the cable onto the cable laying rack; 5) When laying the next layer, operate the hydraulic cylinder to adjust the height of the lifting platform.

[0017] The beneficial effects of the present invention are: 1) The cable is first placed in the wire-laying box. Under the action of the power mechanism, the rear part of the cable is gradually fed into the wire-laying box. The cable coming out of the wire-laying box is inserted into the fixed ring; the cable coming out of the fixed ring is inserted into the outlet box; after the action of the first motor, the cable is fed into the cable laying rack; the setting of the lifting platform enables the height of the lifting platform to be adjusted by operating the hydraulic cylinder when laying the previous layer; the setting of the wire-laying box makes the placement of the cable smoother; at the same time, it can also replace manual cable laying. Through the intermediate protection mechanism and the wire-laying lifting mechanism, the intermediate protection mechanism can solve the large span phenomenon between the wire-laying box and the outlet box, and can achieve the purpose of placing the cable directly on the cable laying rack; 2) By setting the roller, the friction between the cable and the bridge can be effectively reduced; 3) By operating the second motor, the connecting plate can be moved toward the middle and to both sides at the same time, that is, the distance between the clamping rollers can be adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein: Figure 1 This is a schematic diagram of the structure of the rail transit cable installation device provided by the present invention; Figure 2 yes Figure 1 axonometric drawing; Figure 3 for Figure 1 Schematic diagram of the internal structure of the medium-travel trolley; Figure 4 for Figure 2 A magnified view of middle; Figure 5 It is a structural diagram of the wire box; Figure 6 for Figure 5 Enlarged view of B.

[0019] Description of reference numerals: 1. Traveling trolley; 2. Cable reel; 3. Cable; 4. Wire-paying box; 5. Support leg; 6. Support frame; 7. Lifting platform; 8. Clearance hole; 9. Wire outlet box; 10. Slide rail; 11. First lead screw; 12. First motor; 13. Protection plate; 14. Fixed ring; 15. Cage; 16. Ball; 17. Pass hole; 18. Bridge; 19. Roller; 20. Laser hole; 21. Detector; 22. Fixed plate; 23. Connecting plate; 24. Second lead screw; 25. Second motor; 26. Clamping roller; 27. Rail transit channel; 28. Moving block; 29. ​​Third lead screw; 30. Third motor; 31. Support plate; 32. Hydraulic cylinder; 33. Cable laying frame. DETAILED DESCRIPTION

[0020] To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the following will be combined with the appended drawings of the embodiments of the present invention. Figure 1-6 , the technical scheme of the embodiment of the present invention is clearly and completely described. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0021] like Figure 1-6 As shown: A rail transit cable installation device comprises a traveling trolley 1, on which a cable reel 2 is provided, on which a cable 3 is provided, and also comprises a wire-releasing box 4, on which a passage hole 17 is provided, into which the cable 3 is inserted, and inside the wire-releasing box 4 a bridge 18 is provided, on which a plurality of rollers 19 for the passage of the cable 3 are provided, and on which a power mechanism for conveying the cable 3 is provided on the outer side surface of the wire-releasing box 4, and a support leg 5 is provided on the lower end surface of the wire-releasing box 4, and fixed to the traveling trolley 1 through the support leg 5; an intermediate protection mechanism, the intermediate protection mechanism comprises a support frame 6 connected to the support leg 5, a fixing ring 14 is provided on the end of the support frame 6, a retaining frame 15 is provided on the upper end surface of the fixing ring 14, and the retaining frame 15 is provided on the upper end surface of the fixing ring 14. A plurality of ball bearings 16 are provided at the upper end of the holder 15; a wire-releasing lifting mechanism, which comprises a lifting platform 7 arranged on the upper end surface of the walking trolley 1, a clearance hole 8 is arranged below the lifting platform 7, a moving block 28 is arranged in the clearance hole 8, the upper end of the moving block 28 is connected to the lifting platform 7, the moving block 28 is connected to a third lead screw 29, a third motor 30 is arranged at the end of the third lead screw 29, the lower end of the third motor 30 is connected to a support plate 31, and the lower end surface of the support plate 31 is connected to a hydraulic cylinder 32; a wire-out mechanism, which comprises a slide rail 10 arranged on the upper end surface of the lifting platform 7, the slide rail 10 is connected to a terminal box 9, the terminal box 9 is connected to a first lead screw 11, and the first lead screw 11 is connected to a first motor 12 fixed on the lifting platform 7.

[0022] In this embodiment, the trolley 1 travels on the rails of rail transit. A cable reel 2 is provided on the trolley 1 and is erected through a frame. A cable 3 to be released is provided on the cable reel 2. A pay-off box 4 is connected to the trolley 1 through a support leg 5. A bridge 18 is provided inside the pay-off box 4. A roller 19 is provided on the bridge 18. A power mechanism is provided at both ends of the pay-off box 4. The power mechanism can drive the cable 3 to be released at a uniform speed. In order to solve the problem of a large span between the pay-off box 4 and the outlet box 9, which is prone to cause the pay-off of the cable 3, an intermediate protection mechanism is provided between the outlet box 9 and the pay-off box 4. Specifically, the intermediate protection mechanism includes a support frame 6, a fixing ring 14 is provided on the support frame 6, a retaining frame 15 is provided on the fixing ring 14, and a ball 16 is provided on the retaining frame 15, which can protect the cable 3 and prevent the swing of the cable 3 from affecting the pay-off. In order to deliver the cable 3 to the cable laying frame 33, a horizontally movable lifting platform 7 is used to deliver the terminal box 9 to the cable laying frame 33 on each layer. In order to achieve fine-tuning, the terminal box 9 can also be adjusted horizontally on the lifting platform 7.

[0023] The wire-paying box 4 is a hollow structure, and a passage hole 17 is arranged on the opposite side of the wire-paying box 4, and the passage hole 17 faces the direction of the cable reel 2. The bridge 18 is connected to the passage hole 17 on the wire-paying box 4, and the bridge 18 is a U-shaped groove structure. The rollers 19 are evenly distributed at the bottom of the bridge 18 and are connected to the side walls of the bridge 18 through bearings.

[0024] In this embodiment, the wire box 4 is a hollow structure, and a through hole 17 is provided on the side and opposite surface of the wire box 4, and the through hole 17 is used for the cable 3 to pass through. A bridge 18 arranged inside the wire box 4 connects the two through holes 17, and the bridge 18 is a U-shaped groove structure. Rollers 19 are arranged at intervals at the bottom of the bridge 18 to avoid friction between the cable 3 and the bridge 18.

[0025] The power mechanism includes a fixed plate 22 arranged on the outer side of the wire release box 4, a T-shaped slide groove is arranged on the fixed plate 22, and a connecting plate 23 is connected to the connecting plate 23 through the T-shaped slide groove, a clamping roller 26 is connected to the connecting plate 23 through a bearing, and a second motor 25 is connected to the end of the clamping roller 26, the second motor 25 is fixedly connected to the connecting plate 23, and the clamping roller 26 is driven to rotate by the second motor 25, a threaded hole is arranged on the connecting plate 23, and the connecting plate 23 is connected to the second lead screw 24 through the threaded hole, a motor is arranged at the end of the second lead screw 24, and the other end of the second lead screw 24 is connected to the fixed plate 22 through a bearing, the motor of the second lead screw 24 is connected to the fixed plate 22, and the forward movement or backward movement of the clamping roller 26 is realized by the second motor 25.

[0026] In this embodiment, the power mechanism is used for power output when releasing the line, so as to realize the purpose of uniform speed forward movement of the cable 3. Specifically, a fixed plate 22 is provided on the outer side of the line release box 4, and a connecting plate 23 is provided on the fixed plate 22. The connecting plate 23 can move on the fixed plate 22, and a clamping roller 26 is provided on the connecting plate 23, and the clamping roller 26 is driven by the second motor 25. Through the two clamping rollers 26, the cable 3 can be clamped and moved forward. In order to adapt to cables 3 of different diameters, a threaded hole is provided on the connecting plate 23, and the threaded hole is connected to the second lead screw 24. The thread on the second lead screw 24 is half positive and half negative. By operating the second motor 25, the connecting plate 23 can move toward the middle direction at the same time, and can also move to both sides at the same time, that is, the distance between the clamping rollers 26 can be adjusted.

[0027] The lower end of the support leg 5 is fixed to the upper end surface of the walking trolley 1. There are two support legs 5, which are vertically arranged. A support frame 6 is connected to the middle position of the support leg 5. The support frame 6 is horizontally arranged. A horizontally placed fixing ring 14 is arranged at the outer end of the support frame 6. The outer side surface of the fixing ring 14 is fixedly connected to the support frame 6. The upper and lower end surfaces of the fixing ring 14 are fixedly provided with a retaining frame 15. The retaining frame 15 has a circular ring structure, and a cylindrical rod is arranged on the side of the circular ring. A rolling ball 16 is installed at the end of the cylindrical rod.

[0028] In this embodiment, the lower end of the support leg 5 is fixed to the walking trolley 1 by bolts, and a support frame 6 is arranged in the middle position of the support leg 5. The support frame 6 is a tripod structure, and a fixing ring 14 is fixedly arranged at the end. A retaining frame 15 is arranged at the upper end of the fixing ring 14, and the retaining frame 15 is also fixedly connected at the lower end. A cylindrical rod is arranged on the end face of the retaining frame 15. The rod is a hollow structure, and a ball 16 is arranged at the end of the rod. By arranging the ball 16, the cable 3 can be protected.

[0029] The give way hole 8 is arranged on the upper end surface of the walking trolley 1 and is connected to the cavity structure arranged on the walking trolley 1. The upper end of the moving block 28 is fixedly connected to the lifting platform 7 and is connected to the lower end surface of the lifting platform 7. A threaded hole is arranged on the moving block 28. A third lead screw 29 is arranged in the threaded hole. After the third lead screw 29 is driven by the third motor 30, it is used for the horizontal movement of the lifting platform 7. A limiting rod is arranged on the moving block 28 which horizontally penetrates the moving block 28. The limiting rod is slidably connected to the moving block 28.

[0030] In this embodiment, the clearance hole 8 is a through hole, which is used to penetrate the upper end surface of the traveling trolley 1. The position below the lifting platform 7 on the traveling trolley 1 is a cavity structure, and a lifting device is installed inside, including a hydraulic cylinder 32, a support plate 31, etc. A third screw 29 and a third motor 30 that can move the lifting platform 7 horizontally are also installed.

[0031] The structure of the outlet box 9 is the same as that of the discharge box 4. The outlet box 9 is slidably connected to the slide rail 10, and the connection is T-shaped. The bottom of the outlet box 9 is connected to the first screw 11 through a thread. The first screw 11 is driven by the first motor 12 to move the outlet box 9 horizontally.

[0032] In this embodiment, the structure of the outlet box 9 is the same as that of the release box 4, except that the outlet box 9 can move horizontally, and under the action of the first screw 11 and the first motor 12, the outlet box 9 can be fine-tuned to more accurately place the cable 3 at a fixed position on the cable laying frame 33.

[0033] The traveling trolley 1 is placed on the steel rails laid by the rail transit, and both sides of the traveling trolley 1 are rail transit passages 27 . The rail transit passages 27 are provided with cable laying frames 33 for supporting the cables 3 .

[0034] Working method (or working principle) of the present invention: 1) First, insert the cable 3 into the wire-releasing box 4, and operate the second motor 25. Under the rotation of the second motor 25, the clamping roller 26 is driven to gradually feed the cable 3 into the wire-releasing box 4; 2) The cable 3 coming out of the wire box 4 is inserted into the fixing ring 14; 3) The cable 3 coming out of the fixing ring 14 is passed into the outlet box 9; 4) operating the first motor 12 to feed the cable 3 onto the cable laying frame 33; 5) When laying the previous layer, operate the hydraulic cylinder 32 to adjust the height of the lifting platform 7.

[0035] In the present invention, unless otherwise clearly stipulated and limited, for example, it can be a fixed connection, a detachable connection, or an integrated one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected 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 the specific circumstances.

[0036] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A rail transit cable installation device, comprising a traveling trolley (1), the traveling trolley (1) being provided with a cable reel (2), the cable reel (2) being provided with a cable (3), characterized in that: It also includes a wire-releasing box (4), an intermediate protection mechanism, a wire-releasing lifting mechanism and a wire-out mechanism. The wire-releasing box (4) is provided with a passage hole (17), and the cable (3) is inserted into the passage hole (17). A bridge frame (18) is provided inside the wire-releasing box (4), and a plurality of rollers (19) for the passage of the cable (3) are provided on the bridge frame (18). A power mechanism for transporting the cable (3) is provided on the outer side surface of the wire-releasing box (4). A support leg (5) is provided on the lower end surface of the wire-releasing box (4), and is fixed to the traveling trolley (1) through the support leg (5); the intermediate protection mechanism includes a support frame (6) connected to the support leg (5); and the wire-releasing lifting mechanism includes a lifting platform (7) provided on the upper end surface of the traveling trolley (1); The outlet mechanism comprises a slide rail (10) arranged on the upper end surface of the lifting platform (7), the slide rail (10) is connected to an outlet box (9), the outlet box (9) is connected to a first lead screw (11), and the first lead screw (11) is connected to a first motor (12) fixed on the lifting platform (7).

2. A rail transit cable installation device according to claim 1, characterized in that: A fixing ring (14) is arranged at the end of the support frame (6), a retaining frame (15) is arranged on the upper end surface of the fixing ring (14), and a plurality of balls (16) are arranged at the upper end of the retaining frame (15).

3. A rail transit cable installation device according to claim 2, characterized in that: A clearance hole (8) is provided below the lifting platform (7), a moving block (28) is provided in the clearance hole (8), the upper end of the moving block (28) is connected to the lifting platform (7), the moving block (28) is connected to a third lead screw (29), a third motor (30) is provided at the end of the third lead screw (29), the lower end of the third motor (30) is connected to a support plate (31), and the lower end surface of the support plate (31) is connected to a hydraulic cylinder (32).

4. A rail transit cable installation device according to claim 3, characterized in that: The wire-releasing box (4) is a hollow structure, a passage hole (17) is arranged on the opposite side of the wire-releasing box (4), and the passage hole (17) faces the direction of the cable reel (2), the bridge frame (18) is connected to the passage hole (17) on the wire-releasing box (4), the bridge frame (18) is a U-shaped groove structure, the roller shaft (19) is evenly distributed at the bottom of the bridge frame (18), and is connected to the side wall of the bridge frame (18) through a bearing.

5. A rail transit cable installation device according to claim 4, characterized in that: The power mechanism comprises a fixed plate (22) arranged on the outer side of the wire release box (4), the fixed plate (22) is provided with a T-shaped slide groove, and a connecting plate (23) is connected to the connecting plate (23) through the T-shaped slide groove, a clamping roller (26) is connected to the connecting plate (23) through a bearing, the end of the clamping roller (26) is connected to a second motor (25), the second motor (25) and the connecting plate (23) are fixedly connected, and the clamping roller (26) is driven to rotate by the second motor (25), a threaded hole is provided on the connecting plate (23), the connecting plate (23) is connected to a second lead screw (24) through the threaded hole, a motor is provided at the end of the second lead screw (24), the other end of the second lead screw (24) is connected to the fixed plate (22) through a bearing, the motor of the second lead screw (24) is connected to the fixed plate (22), and the forward or backward movement of the clamping roller (26) is realized by the second motor (25).

6. A rail transit cable installation device according to claim 5, characterized in that: The lower end of the support leg (5) is fixed to the upper end surface of the walking trolley (1). There are two support legs (5) and they are arranged vertically. The middle position of the support leg (5) is connected to a support frame (6). The support frame (6) is arranged horizontally. A horizontally placed fixing ring (14) is arranged at the outer end of the support frame (6). The outer side surface of the fixing ring (14) is fixedly connected to the support frame (6). The upper end surface and the lower end surface of the fixing ring (14) are fixedly provided with a retaining frame (15). The retaining frame (15) has a circular ring structure, and a cylindrical rod is arranged on the side of the circular ring. A rolling ball (16) is installed at the end of the cylindrical rod.

7. A rail transit cable installation device according to claim 6, characterized in that: The clearance hole (8) is arranged on the upper end surface of the walking trolley (1) and is connected to the cavity structure arranged on the walking trolley (1). The upper end of the moving block (28) is fixedly connected to the lifting platform (7) and is connected to the lower end surface of the lifting platform (7). The moving block (28) is provided with a threaded hole, and a third lead screw (29) is arranged in the threaded hole. After the third lead screw (29) is driven by the third motor (30), it is used for horizontal movement of the lifting platform (7). The moving block (28) is provided with a limit rod that horizontally penetrates the moving block (28), and the limit rod is slidably connected to the moving block (28).

8. A rail transit cable installation device according to claim 7, characterized in that: The structure of the outlet box (9) is the same as that of the discharge box (4); the outlet box (9) is slidably connected to the slide rail (10), and the connection is in a T-shape; the bottom of the outlet box (9) is connected to the first lead screw (11) via a thread; the first lead screw (11) is driven by a first motor (12) to horizontally move the outlet box (9).

9. A rail transit cable installation device according to claim 8, characterized in that: The traveling trolley (1) is placed on a steel rail laid by rail transit, and both sides of the traveling trolley (1) are rail transit passages (27), and a cable laying frame (33) for supporting a cable (3) is arranged on the rail transit passage (27).

10. A rail transit cable installation method, characterized in that: The rail transit cable installation device according to any one of claims 1 to 9 comprises the following steps: 1) Insert the cable (3) into the wire-releasing box (4), operate the second motor (25), and drive the clamping roller (26) to gradually feed the cable (3) into the wire-releasing box (4) under the rotation of the second motor (25); 2) The cable (3) coming out of the wire box (4) is inserted into the fixing ring (14); 3) The cable (3) coming out of the fixing ring (14) is passed into the outlet box (9); 4) operating the first motor (12) to feed the cable (3) onto the cable laying frame (33); 5) When laying the previous layer, operate the hydraulic cylinder (32) to adjust the height of the lifting platform (7).

Images