Stay cable hanging device for bridge construction and cable hanging method thereof

Abstract

The invention discloses a stay cable hanging device for bridge construction and a cable hanging method of the stay cable hanging device, and relates to the technical field of bridge construction engineering construction, in particular to the stay cable hanging device for bridge construction and the cable hanging method of the stay cable hanging device for bridge construction. Supporting legs are slidably mounted on the front side and the rear side of the mounting base correspondingly, and a second fastening frame is mounted at the side end of the first fastening frame. According to the stay cable hanging device for bridge construction and the cable hanging method of the stay cable hanging device, the using positions and angles of a first supporting arm, a second supporting arm, a mounting frame and the like are rapidly adjusted through three first rotating motors, and a third rotating motor and a transmission belt are matched to drive a threaded rotating rod to rotate, so that two clamping tools are driven to get close to each other; and the rope can be quickly clamped when the device is used, so that the use height of the rope is conveniently driven and adjusted subsequently, subsequent butt joint installation is facilitated, and the use efficiency of the device is improved.

Description

Technical Field

[0001] The invention relates to the technical field of bridge construction engineering, in particular to a cable hanging device and a cable hanging method for bridge construction. Background Art

[0002] The inclined cable, also known as the stay cable, is the main load-bearing component that directly transfers the weight of the main beam and bridge deck of the cable-stayed bridge to the tower. The cable material of a cable-stayed bridge is usually steel cable, and its form varies according to its composition method. It can be composed of parallel steel wires, parallel steel cables, single steel cables, steel wire ropes, closed steel cables or solid steel bars. Since the cable is placed at an angle, it is called an inclined cable. A cable-stayed bridge consists of a cable tower, main beam and inclined cables.

[0003] At present, when existing inclined cable bridges are suspended, most of them use a crane to tie a hook on one side of the steel cable and then lift it up, and cooperate with workers at a height to install and splice it. This results in a greatly limited range of movement of the rope after the crane lifts the rope, and the rope can only maintain one angle when the crane is lifting it. This makes it inconvenient to connect the rope later, and it is necessary to constantly operate the crane to adjust the rope, which is cumbersome to use. Summary of the invention

[0004] In view of the deficiencies of the prior art, the present invention provides a stay cable hanging device and a hanging method for bridge construction, which solves the problem that the device proposed in the above background technology cannot quickly adjust the angle of the raised rope when in use.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a cable hanging device for bridge construction and a cable hanging method thereof, comprising a mounting base, wherein universal wheels are installed at the four corners of the lower end of the mounting base, support legs are slidably installed on the front and rear sides of the mounting base, a first support arm is rotatably installed on the upper end of the mounting base, a second support arm is rotatably installed on the side end of the first support arm, and a mounting frame is rotatably installed on the side end of the second support arm away from the first support arm, four clamps are slidably installed inside the mounting frame, a rotating push rod is rotatably installed inside the mounting frame, the same steel cable body is installed between each of the clamps, a fixing kit is installed on the side end of the steel cable body, a first fastening frame is sleeved on the outer surface of the fixing kit, and a second fastening frame is installed on the side end of the first fastening frame.

[0006] Optionally, an engine is fixedly mounted on the lower end of the mounting base, universal wheels are rotatably mounted on the four corners of the engine, pushing motors are mounted on the front and rear sides of the mounting base, and a support leg is slidably mounted on the lower end of each pushing motor.

[0007] Optionally, a rotating chassis is installed on the upper end of the mounting base, and a first connecting ring is rotatably installed on the upper end of the rotating chassis. A first supporting arm is sleeved on the outer surface of the first connecting ring, and a first rotating motor is installed at the connection between the first supporting arm and the first connecting ring, and a first rotating motor is installed at the connection between the first supporting arm and the second supporting arm.

[0008] Optionally, a second connecting ring is fixedly installed on the lower end of the mounting frame, the mounting frame is connected to the second support arm via the second connecting ring, a first rotating motor is installed at the connection between the mounting frame and the second support arm, and first limit frames are fixedly installed on the front and rear sides of the mounting frame, and a roller is rotatably installed inside each of the first limit frames.

[0009] Optionally, two second limiting frames are installed inside the installation frame, and a same rotating push rod is rotatably installed between each of the second limiting frames, and a second rotating motor is rotatably installed on the side end of the rotating push rod.

[0010] Optionally, two threaded rotating rods are rotatably mounted inside the mounting frame, and the outer surface of each threaded rotating rod is sleeved with two clamps.

[0011] Optionally, a third rotating motor is rotatably mounted on the side end of one of the threaded rotating rods, and the side end of each of the threaded rotating rods is sleeved with the same transmission belt.

[0012] Optionally, an extension plate is fixedly mounted on the side end of the first fastening frame, threaded holes are provided inside the first fastening frame and the extension plate, and three blocking sheets are fixedly mounted inside the first fastening frame and the second fastening frame.

[0013] Optionally, the second fastening frame is installed at the side end of the first fastening frame by cooperating with the extension plate through the side end slot, and at the same time cooperates with the blocking plate installed inside to limit the fixing kit. Three threaded holes are opened inside the second fastening frame, and the positions of two of the threaded holes are the same as the positions of the threaded holes opened inside the extension plate. When the first fastening frame and the second fastening frame are connected, there are four threaded hole openings in total, and an extension plate is installed inside each of the threaded holes. A connecting base plate is installed on the same side of the first fastening frame and the second fastening frame, and the connecting base plate is installed on the side ends of the first fastening frame and the second fastening frame by cooperating with bolts through the internal slots.

[0014] The method for using the inclined cable hanging device for bridge construction includes the following specific steps:

[0015] Step 1: After the user has arranged the tools to be used, first pick up the steel cable body, install the fixing kit on one side of the steel cable body, then push the installation base and other parts to move it to the specified position, then start the push motors on both sides, push the motors to push the support legs down to support the device and fix it, then operate the rotating chassis to rotate and adjust the use direction of the device;

[0016] Step 2: Then the user starts the three first rotating motors in sequence, and operates different first rotating motors to drive the first support arm to rotate along the first connecting ring, the second support arm to rotate along the first support arm, and the installation frame to rotate along the second support arm, so as to quickly adjust the use angle and position of the installation frame, and then point the clamp installed on one side of the installation frame downward, and then start the third rotating motor, and the third rotating motor cooperates with the transmission belt to drive the two threaded rotating rods to rotate, and then drive the two clamps to approach each other, and at this time, the steel cable body placed on the ground is clamped;

[0017] Step 3: After the user clamps the steel cable body, the three first rotating motors are started again. The first rotating motor quickly adjusts the use angles of the first support arm, the second support arm and the installation frame, thereby driving the steel cable body to be lifted to the specified height position of the bridge. Then the second rotating motor is started. The second rotating motor cooperates with the second limit frame to limit the rotation push rod inside the installation frame, thereby pushing the clamped steel cable body to slide. Then, the first limit frame and rollers installed on both sides of the installation frame are used to reduce friction between the steel cable body and the installation frame and other parts, thereby reducing damage. Then, one side of the steel cable body is extended to a high place and connected with the upper parts for installation.

[0018] Step 4: Then the user continues to use the three first rotating motors to operate the first supporting arm and other parts to adjust the installation frame to a suitable angle, and then cooperates with the rotating push rod to rotate the steel cable body to a specified angle, and then the first fastening frame and the second fastening frame are sleeved on one side of the fixing kit installed under the steel cable body, and then the second rotating motor is started again as needed, and the second rotating motor drives the rotating push rod to rotate to straighten the steel cable body, and then according to the length of the steel cable body after straightening, it is determined which blocking piece is more suitable for fixing when the fixing kit is sleeved between the first fastening frame and the second fastening frame;

[0019] Step 5: After installing the first fastening frame and the second fastening frame, the user installs the connecting base plate on the lower side thereof, and then installs the bolts along the threaded holes provided in the first fastening frame and the second fastening frame, and then connects and fixes the first fastening frame, the second fastening frame and the connecting base plate, and finally fixes them on the side end of the bridge.

[0020] The present invention provides a stay cable hanging device and a hanging method for bridge construction, which have the following beneficial effects:

[0021] 1. The cable hanging device and the cable hanging method for bridge construction use three first rotating motors to quickly adjust the use positions and angles of the first support arm, the second support arm, the installation frame, etc., and cooperate with the third rotating motor and the transmission belt to drive the threaded rotating rod to rotate, thereby driving the two clamps to approach each other, so that the device can quickly clamp the rope when in use, thereby facilitating the subsequent adjustment of the rope use height, facilitating the subsequent docking and installation, and improving the use efficiency of the device.

[0022] 2. The cable-stayed cable hanging device and the cable-hanging method for bridge construction use an engine to drive four universal wheels to quickly adjust the position of the mounting base, and then cooperate with a push motor and support legs to support the device after the position is adjusted, so that the device can be quickly adjusted when in use, thereby improving the flexibility of the device.

[0023] 3. The cable hanging device and the cable hanging method for the bridge construction limit the rotating push rod by the second limit frame and cooperate with the second rotating motor to drive the rotating push rod to rotate, thereby pushing the rope clamped by the clamp, so as to facilitate the straightening or transportation and length adjustment of the rope during subsequent installation, thereby improving the practicality of the device.

[0024] 4. The cable hanging device and the cable hanging method for the bridge construction, through the first limit frame and the roller installed on both sides of the installation frame, can reduce the friction between the rope and the edge of the device when the installation frame is adjusted and rotated along the second support arm, thereby extending the service life of the device and reducing damage to the rope caused by collision between the rope and the device during transportation.

[0025] 5. The cable hanging device and the cable hanging method for the bridge construction connect the upper side of the rope to the bridge, start the second rotating motor to drive the rotating push rod to rotate, and then cooperate with the installation frame to adjust the use position, so as to quickly straighten the steel cable body, and then adjust the buckle position between the blocking plate and the fixing kit according to the length of the steel cable body and the installation distance estimation, so that the device can adjust the short-distance rope length when in use, which is convenient for subsequent installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the mounting base structure in the invention;

[0027] Figure 2 It is a schematic diagram of the universal wheel structure in the invention;

[0028] Figure 3 It is a schematic diagram of the structure of the first support arm in the invention;

[0029] Figure 4It is a schematic diagram of the second connecting ring structure in the invention;

[0030] Figure 5 This is a schematic diagram of the connecting base plate structure in the invention.

[0031] In the figure: 1. mounting base; 11. engine; 12. universal wheel; 13. pushing motor; 14. supporting leg; 15. rotating chassis; 16. first connecting ring; 17. first supporting arm; 18. second supporting arm; 19. first rotating motor; 2. mounting frame; 21. second connecting ring; 22. first limiting frame; 23. roller; 24. second limiting frame; 25. rotating push rod; 26. second rotating motor; 3. threaded rotating rod; 31. third rotating motor; 32. transmission belt; 33. clamp; 34. steel cable body; 35. fixing kit; 4. connecting base plate; 41. first fastening frame; 42. extension plate; 43. threaded hole; 44. bolt; 45. second fastening frame; 46. blocking plate. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0033] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] See also Figures 1 to 5The present invention provides a technical solution: a cable hanging device for bridge construction and a cable hanging method thereof, comprising a mounting base 1, wherein universal wheels 12 are installed at the four corners of the lower end of the mounting base 1, support legs 14 are slidably installed on the front and rear sides of the mounting base 1, a first support arm 17 is rotatably installed on the upper end of the mounting base 1, a second support arm 18 is rotatably installed on the side end of the first support arm 17, a mounting frame 2 is rotatably installed on the side end of the second support arm 18 away from the first support arm 17, four clamps 33 are slidably installed inside the mounting frame 2, a rotating push rod 25 is rotatably installed inside the mounting frame 2, a same steel cable body 34 is installed between each clamp 33, a fixing kit 35 is installed on the side end of the steel cable body 34, a first fastening frame 41 is sleeved on the outer surface of the fixing kit 35, and a second fastening frame 45 is installed on the side end of the first fastening frame 41.

[0036] In this embodiment, Figure 1 As shown, an engine 11 is fixedly installed at the lower end of the mounting base 1, and universal wheels 12 are rotatably installed at the four corners of the engine 11. Push motors 13 are installed on the front and rear sides of the mounting base 1, and support legs 14 are slidably installed at the lower end of each push motor 13; this structure can quickly adjust the use position of the device through the engine 11 in conjunction with the universal wheels 12, so that the device can be quickly put into use.

[0037] In this embodiment, Figure 1 As shown, a rotating chassis 15 is installed on the upper end of the mounting base 1, and a first connecting ring 16 is rotatably installed on the upper end of the rotating chassis 15. A first supporting arm 17 is sleeved on the outer surface of the first connecting ring 16. A first rotating motor 19 is installed at the connection between the first supporting arm 17 and the first connecting ring 16, and a first rotating motor 19 is installed at the connection between the first supporting arm 17 and the second supporting arm 18. This structure can drive the first connecting ring 16 to rotate through the rotating chassis 15, and then when the position of the mounting base 1 is restricted, the upper first supporting arm 17, the mounting frame 2 and other parts can be rotated and adjusted, thereby improving the flexibility of the device.

[0038] In this embodiment, Figure 1 As shown, a second connecting ring 21 is fixedly installed on the lower end of the mounting frame 2, and the mounting frame 2 is connected to the second support arm 18 through the second connecting ring 21. A first rotating motor 19 is installed at the connection between the mounting frame 2 and the second support arm 18, and first limit frames 22 are fixedly installed on the front and rear sides of the mounting frame 2, and a roller 23 is rotatably installed inside each first limit frame 22; this structure can be connected to the second support arm 18 through the second connecting ring 21, and then cooperate with the first rotating motor 19 to perform connection and limit, so as to perform rotation adjustment.

[0039] In this embodiment, Figure 1As shown, two second limit frames 24 are installed inside the installation frame 2, and the same rotating push rod 25 is rotatably installed between each second limit frame 24, and a second rotating motor 26 is rotatably installed on the side end of the rotating push rod 25; this structure can limit the rotating push rod 25 through the second limit frame 24 and cooperate with the second rotating motor 26 on the side end of the rotating push rod 25 to drive it to rotate, so that the length of the side end rope extended can be adjusted during use, which is convenient for subsequent installation.

[0040] In this embodiment, Figure 1 As shown, two threaded rotating rods 3 are rotatably installed inside the mounting frame 2, and two clamps 33 are sleeved on the outer surface of each threaded rotating rod 3; this structure can drive the two clamps 33 to move closer to or away from each other through the rotation of the threaded rotating rod 3, thereby facilitating subsequent clamping or loosening.

[0041] In this embodiment, Figure 1 As shown, a third rotating motor 31 is rotatably installed on the side end of one of the threaded rotating rods 3, and a same transmission belt 32 is sleeved on the side end of each threaded rotating rod 3; this structure can quickly drive the two threaded rotating rods 3 to rotate through the third rotating motor 31 in conjunction with the transmission belt 32, which is convenient for subsequent use.

[0042] In this embodiment, Figure 1 As shown, an extension plate 42 is fixedly installed on the side end of the first fastening frame 41, and threaded holes 43 are provided inside the first fastening frame 41 and the extension plate 42, and three blocking plates 46 are fixedly installed inside the first fastening frame 41 and the second fastening frame 45; this structure can be quickly spliced ​​by cooperating with the grooves on the side ends of the extension plate 42 and the second fastening frame 45, which is convenient for subsequent limited installation.

[0043] In this embodiment, Figure 1 As shown, the second fastening frame 45 is installed at the side end of the first fastening frame 41 by cooperating with the extension plate 42 through the side end slot, and at the same time cooperates with the blocking plate 46 installed inside to limit the fixing kit 35. Three threaded holes 43 are opened inside the second fastening frame 45, two of which are opened at the same positions as the threaded holes 43 opened inside the extension plate 42. When the first fastening frame 41 and the second fastening frame 45 are connected, there are a total of four threaded holes 43 openings, and an extension plate 42 is installed inside each threaded hole 43. A connecting base plate 4 is installed on the same side of the first fastening frame 41 and the second fastening frame 45. The connecting base plate 4 is installed at the side ends of the first fastening frame 41 and the second fastening frame 45 through the internal slot and the bolt 44; this structure can be limited in multiple positions by the bolts 44 and the threaded holes 43, so that the first fastening frame 41, the second fastening frame 45 and the connecting base plate 4 can be quickly installed and limited, which is convenient for installing the fixing kit 35.

[0044] The method for using the inclined cable hanging device for bridge construction is characterized in that the specific method is as follows:

[0045] Step 1: After the user has arranged the tools to be used, he first picks up the steel cable body 34, installs the fixing kit 35 on one side of the steel cable body 34, and then pushes the mounting base 1 and other parts to move it to the specified position, and then starts the pushing motors 13 on both sides, and the pushing motors 13 push the supporting legs 14 down to support and fix the device, and then operates the rotating chassis 15 to rotate and adjust the use direction of the device;

[0046] Step 2: Then the user starts the three first rotating motors 19 in sequence, and operates different first rotating motors 19 to drive the first support arm 17 to rotate along the first connecting ring 16, the second support arm 18 to rotate along the first support arm 17, and the installation frame 2 to rotate along the second support arm 18, so as to quickly adjust the use angle and position of the installation frame 2, and then point the clamp 33 installed on one side of the installation frame 2 downward, and then start the third rotating motor 31, and the third rotating motor 31 cooperates with the transmission belt 32 to drive the two threaded rotating rods 3 to rotate, and then drive the two clamps 33 to approach each other, and at this time, the steel cable body 34 placed on the ground is clamped;

[0047] Step 3: After the user clamps the steel cable body 34, the three first rotating motors 19 are started again. The first rotating motor 19 quickly adjusts the use angles of the first supporting arm 17, the second supporting arm 18 and the mounting frame 2, thereby driving the steel cable body 34 to be lifted to the specified height position of the bridge, and then the second rotating motor 26 is started. The second rotating motor 26 cooperates with the second limiting frame 24 to limit and drive the rotating push rod 25 to rotate inside the mounting frame 2, thereby pushing the clamped steel cable body 34 to slide, and then cooperates with the first limiting frame 22 and rollers 23 installed on both sides of the mounting frame 2 to reduce friction between the steel cable body 34 and the mounting frame 2 and other parts, thereby reducing damage, and then one side of the steel cable body 34 is extended to a high place and connected with the upper parts for installation;

[0048] Step 4: Then the user continues to use the three first rotating motors 19 to operate the first supporting arm 17 and other parts to adjust the installation frame 2 to a suitable angle, and then cooperates with the rotating push rod 25 to push the steel cable body 34 to rotate to a specified angle, and then the first fastening frame 41 and the second fastening frame 45 are sleeved on one side of the fixing kit 35 installed under the steel cable body 34, and then the second rotating motor 26 is started again as needed, and the second rotating motor 26 drives the rotating push rod 25 to rotate and then straighten the steel cable body 34, and then according to the length of the steel cable body 34 after straightening, it is determined which blocking piece 46 is more suitable for fixing when the fixing kit 35 is sleeved between the first fastening frame 41 and the second fastening frame 45;

[0049] Step 5: After installing the first fastening frame 41 and the second fastening frame 45, the user installs the connecting base plate 4 on the lower side, and then installs the bolts 44 along the threaded holes 43 opened in the first fastening frame 41 and the second fastening frame 45, and then connects and fixes the first fastening frame 41, the second fastening frame 45 and the connecting base plate 4, and finally fixes them on the side end of the bridge.

[0050] In summary, the bridge construction inclined cable hanging device and the hanging method thereof are as follows: when in use, the device is placed on a horizontal plane, the user picks up the mounting base 1, installs the engine 11 under the mounting base 1, installs the universal wheels 12 at the four corners of the engine 11, and then installs the pushing motors 13 on the front and rear sides of the mounting base 1, installs the supporting legs 14 under each pushing motor 13, then installs the rotating chassis 15 above the mounting base 1, installs the first connecting collar 16 above the rotating chassis 15, and then sleeves the first supporting arm 17 on the outer surface of the first connecting collar 16, and installs the first connecting collar 16 at the connection between the first supporting arm 17 and the first connecting collar 16. Rotate the motor 19, install the second support arm 18 on the side end of the first support arm 17, install the first rotating motor 19 at the connection between the first support arm 17 and the second support arm 18, then pick up the installation frame 2, install the second connecting ring 21 under the installation frame 2, install the first limiting frame 22 on the front and rear sides of the installation frame 2, install the roller 23 inside each first limiting frame 22, then install the second limiting frame 24 inside the installation frame 2, install the rotating push rod 25 inside the second limiting frame 24, install the second rotating motor 26 on the side end of the rotating push rod 25, and then install two threaded rotating rods 3 in the groove inside the installation frame 2, and install the rollers 23 in the two first limiting frames 22. Two clamps 33 are sleeved on the outer surfaces of the threaded rotating rods 3, and then the third rotating motor 31 is installed on the side end of one of the threaded rotating rods 3, and the same transmission belt 32 is sleeved on the outer surfaces of the side ends of the two threaded rotating rods 3, and then the assembled mounting frame 2 is connected to the side end of the second support arm 18 along the second connecting ring 21, and then the first rotating motor 19 is installed at the connection between the second connecting ring 21 and the second support arm 18, and then the user picks up the connecting base plate 4, installs the first fastening frame 41 on the side end of the connecting base plate 4, installs the extension plate 42 on the side end of the first fastening frame 41, and then installs the second fastening frame 41 on the surface of the connecting base plate 4 at the side end of the first fastening frame 41. Frame 45, three blocking pieces 46 are installed inside the second fastening frame 45 and the first fastening frame 41, and then the second fastening frame 45 is spliced ​​with the first fastening frame 41 along the extension plate 42, and then the threaded holes 43 opened in the first fastening frame 41, the extension plate 42 and the second fastening frame 45 are matched, and the connecting base plate 4, the first fastening frame 41 and the second fastening frame 45 are installed and connected with the threaded holes 43 through bolts 44, and then the steel cable body 34 is picked up, and the fixing kit 35 is installed on one side of the steel cable body 34, and the steel cable body 34 and the fixing kit 35 are installed between the first fastening frame 41 and the second fastening frame 45 by matching with the blocking pieces 46.

[0051] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A stay cable hanging device for bridge construction, comprising a mounting base (1), characterized in that: Universal wheels (12) are installed at the four corners of the lower end of the mounting base (1), and support legs (14) are slidably installed on the front and rear sides of the mounting base (1). A first support arm (17) is rotatably installed on the upper end of the mounting base (1), and a second support arm (18) is rotatably installed on the side end of the first support arm (17), and a mounting frame (2) is rotatably installed on the side end of the second support arm (18) away from the first support arm (17). Four clamps (33) are slidably installed inside the mounting frame (2), and a rotating push rod (25) is rotatably installed inside the mounting frame (2). The same steel cable body (34) is installed between each of the clamps (33), and a fixing kit (35) is installed on the side end of the steel cable body (34). The outer surface of the fixing kit (35) is sleeved with a first fastening frame (41), and the side end of the first fastening frame (41) is installed with a second fastening frame (45).

2. The stay cable hanging device for bridge construction according to claim 1, characterized in that: An engine (11) is fixedly mounted on the lower end of the mounting base (1), and universal wheels (12) are rotatably mounted on the four corners of the engine (11). Propulsion motors (13) are mounted on both the front and rear sides of the mounting base (1), and a support leg (14) is slidably mounted on the lower end of each of the propulsion motors (13).

3. The cable hanging device for bridge construction according to claim 1, characterized in that: A rotating chassis (15) is mounted on the upper end of the mounting base (1), a first connecting ring (16) is rotatably mounted on the upper end of the rotating chassis (15), a first supporting arm (17) is sleeved on the outer surface of the first connecting ring (16), a first rotating motor (19) is mounted at the connection between the first supporting arm (17) and the first connecting ring (16), and a first rotating motor (19) is mounted at the connection between the first supporting arm (17) and the second supporting arm (18).

4. The cable hanging device for bridge construction according to claim 1, characterized in that: A second connecting ring (21) is fixedly mounted on the lower end of the mounting frame (2), and the mounting frame (2) is connected to the second support arm (18) via the second connecting ring (21). A first rotating motor (19) is mounted at the connection between the mounting frame (2) and the second support arm (18). First limiting frames (22) are fixedly mounted on both the front and rear sides of the mounting frame (2), and a roller (23) is rotatably mounted inside each of the first limiting frames (22).

5. The stay cable hanging device for bridge construction according to claim 1, characterized in that: Two second limiting frames (24) are installed inside the installation frame (2), and a same rotating push rod (25) is rotatably installed between each of the second limiting frames (24), and a second rotating motor (26) is rotatably installed on the side end of the rotating push rod (25).

6. The cable hanging device for bridge construction according to claim 1, characterized in that: Two threaded rotating rods (3) are rotatably mounted inside the installation frame (2), and the outer surface of each threaded rotating rod (3) is sleeved with two clamps (33).

7. The stay cable hanging device for bridge construction according to claim 6, characterized in that: A third rotating motor (31) is rotatably mounted on the side end of each of the threaded rotating rods (3), and a same transmission belt (32) is sleeved on the side end of each of the threaded rotating rods (3).

8. The stay cable hanging device for bridge construction according to claim 1, characterized in that: An extension plate (42) is fixedly mounted on the side end of the first fastening frame (41), threaded holes (43) are provided inside the first fastening frame (41) and the extension plate (42), and three blocking sheets (46) are fixedly mounted inside the first fastening frame (41) and the second fastening frame (45).

9. The stay cable hanging device for bridge construction according to claim 8, characterized in that: The second fastening frame (45) is mounted on the side end of the first fastening frame (41) by cooperating with the extension plate (42) through the side end slot, and at the same time cooperates with the blocking sheet (46) installed inside to limit the fixing kit (35). The second fastening frame (45) is provided with three threaded holes (43) inside, wherein the positions of two of the threaded holes (43) are the same as the positions of the threaded holes (43) opened inside the extension plate (42). When the first fastening frame (41) and the second fastening frame (45) are connected, there are four threaded holes (43) in total, and an extension plate (42) is installed inside each of the threaded holes (43). A connecting base plate (4) is installed on the same side of the first fastening frame (41) and the second fastening frame (45). The connecting base plate (4) is mounted on the side ends of the first fastening frame (41) and the second fastening frame (45) by cooperating with the bolts (44) through the internal slot.

10. The method for using the stay cable hanging device for bridge construction according to claims 1-9, characterized in that: The specific steps include: Step 1: After the user has prepared the tools, he first picks up the steel cable body (34), installs the fixing kit (35) on one side of the steel cable body (34), and then pushes the installation base (1) and other parts to move it to the specified position, and then starts the pushing motors (13) on both sides, and pushes the supporting legs (14) down to support and fix the device, and then operates the rotating chassis (15) to rotate and adjust the use direction of the device; Step 2: The user then starts the three first rotating motors (19) in sequence, and operates different first rotating motors (19) to drive the first support arm (17) to rotate along the first connecting ring (16), the second support arm (18) to rotate along the first support arm (17), and the installation frame (2) to rotate along the second support arm (18), thereby quickly adjusting the use angle and position of the installation frame (2), and then the clamp (33) installed on one side of the installation frame (2) is directed downward, and then the third rotating motor (31) is started. The third rotating motor (31) cooperates with the transmission belt (32) to drive the two threaded rotating rods (3) to rotate, thereby driving the two clamps (33) to approach each other, and at this time, the steel cable body (34) placed on the ground is clamped; Step 3: After the user clamps the steel cable body (34), the user starts the three first rotating motors (19) again. The first rotating motor (19) quickly adjusts the use angles of the first support arm (17), the second support arm (18) and the mounting frame (2), thereby driving the steel cable body (34) to be lifted to the specified height position of the bridge. Then the second rotating motor (26) is started. The second rotating motor (26) cooperates with the second limiting frame (24) to limit and drive the rotating push rod (25) to rotate inside the mounting frame (2), thereby pushing the clamped steel cable body (34) to slide. Then, the user cooperates with the first limiting frame (22) and the roller (23) installed on both sides of the mounting frame (2) to reduce the friction between the steel cable body (34) and the mounting frame (2) and other parts, thereby reducing damage. Then, one side of the steel cable body (34) is extended to a high place and connected with the upper parts for installation. Step 4: The user then continues to use the three first rotating motors (19) to operate the first support arm (17) and other parts to adjust the installation frame (2) to a suitable angle, and then cooperates with the rotating push rod (25) to push the steel cable body (34) to rotate to a specified angle, and then installs the first fastening frame (41) and the second fastening frame (45) on one side of the fixing kit (35) installed below the steel cable body (34), and then starts the second rotating motor (26) again as needed, and the second rotating motor (26) drives the rotating push rod (25) to rotate and then straighten the steel cable body (34), and then determines which blocking piece (46) is more suitable for fixing when the fixing kit (35) is installed between the first fastening frame (41) and the second fastening frame (45) according to the length of the steel cable body (34) after straightening; Step 5: After installing the first fastening frame (41) and the second fastening frame (45), the user installs the connecting base plate (4) on the lower side thereof, and then installs the bolts (44) along the threaded holes (43) provided in the first fastening frame (41) and the second fastening frame (45), and then connects and fixes the first fastening frame (41), the second fastening frame (45) and the connecting base plate (4), and finally fixes them on the side end of the bridge.

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