Stable structure of crane hanging bracket for bridge construction

Abstract

The invention relates to the field of bridge construction, in particular to a stabilizing structure of a crane hanging bracket for bridge construction, the stabilizing structure is arranged between the hanging bracket and a portal frame, the stabilizing structure comprises a balance pull rope transversely penetrating through the hanging bracket and nodes for connecting the two ends of the balance pull rope, and the nodes can slide in the vertical beam direction of the portal frame. A sliding assembly capable of driving a node to slide is arranged on a vertical beam of the portal frame, and when the hanging bracket is hung upwards or put downwards, the balance pull rope is driven by the sliding assembly to ascend and descend along with the hanging bracket, so that the balance pull rope is always kept in a tightened state in the horizontal direction; the sliding assembly ensures that the balance pull rope and the hanging bracket are kept in a synchronous motion state, in the process, the balance pull rope is always kept in a horizontal tightening state, transverse stabilizing force is applied to the hanging bracket, lateral deviation or shaking caused by wind power, heavy object swing or other external force is counteracted, and the safety of the hanging bracket is improved. The working efficiency is improved; and the potential harm to the surrounding environment is reduced.

Description

Technical Field

[0001] The invention relates to the field of bridge construction, and in particular to a stable structure of a crane hanger for bridge construction. Background Art

[0002] At the bridge construction site, factors such as wind force, crane movement, and lifting speed often cause the hoisted materials to swing greatly in the air, seriously affecting the accuracy and safety of the lifting. In the existing technology, there is a lack of effective dynamic balancing measures to slow down or eliminate the swing, making it difficult for operators to accurately control the lifting process. The frequent swing of materials not only prolongs the operation time, but may also cause damage to the materials themselves and surrounding facilities.

[0003] The currently disclosed Chinese patent CN113911906B discloses a bridge gantry crane hanger and a method of using the hanger, including a gantry assembly for supporting, an electric hoist for completing the lifting work, a hook movably provided at the bottom of the electric hoist, a driving mechanism, which is arranged on the top of the gantry assembly and is used to drive the electric hoist to move left and right, and a self-balancing assembly, which is arranged on the surface of the electric hoist and is used to adaptively adjust and reduce the swing of the hook. The self-balancing assembly includes two bearing plates, and the two bearing plates are respectively fixedly arranged at the front side end and the rear side end of the electric hoist, a thin-film pressure sensor is fixedly arranged on the top of the bearing plate, and a telescopic rod is fixedly arranged on the top of the thin-film pressure sensor A damping spring is fixedly arranged on the surface of the telescopic rod, a mounting plate is fixedly arranged on the top of the telescopic rod, a second forward and reverse motor is fixedly arranged on the top of the mounting plate, a traction shaft is fixedly arranged on the output shaft of the second forward and reverse motor, a traction rope is fixedly wound on the surface of the traction shaft, and two traction ropes are respectively fixedly arranged on the front and rear ends of the hook, a fixing box is fixedly arranged on the top of the second forward and reverse motor, a liquid circulation pipe and a gas circulation pipe are fixedly arranged on the surfaces of the two fixing boxes, two electrical contacts are fixedly arranged on the inner wall of the fixing box, mercury liquid is arranged inside the fixing box, a fixing component is arranged at the bottom of the gantry assembly and is used to provide auxiliary and stable support for the gantry assembly.

[0004] According to the above patent, the swing of the hook will pull one of the traction ropes, and the traction rope will drive the mounting plate at that position to pull downward, so that the two fixing boxes are not at the same height, and the electrical contacts on the inner wall of one of the fixing boxes are completely immersed in mercury liquid. At this time, a current loop is formed, and the traction rope at a low position is controlled to pull the hook, shortening the swing amplitude of the hook, thereby preventing the hook from continuing to swing to one end. However, this method can only maintain stability when the hook is lifted to the highest position. During the process of lowering and lifting the hook, it will still be affected by external factors and shake. Therefore, there is a need for a stable structure that can ensure that the hanger can prevent shaking during the lowering or lifting process. Summary of the invention

[0005] In view of the problems existing in the existing technology, a stable structure of a crane hanger for bridge construction is provided. The present invention ensures that the balancing rope and the hanger maintain a synchronous movement state through a sliding component. During this process, the balancing rope always remains in a horizontal and taut state, exerting a lateral stabilizing force on the hanger to offset lateral deviation or shaking caused by wind, swing of heavy objects or other external forces, thereby improving operating efficiency and reducing potential hazards to the surrounding environment.

[0006] In order to solve the problems of the prior art, the present invention provides a stable structure of a hanger of a crane for bridge construction, which is arranged between the hanger and the gantry, the hanger is provided with a hook, and the crossbeam of the gantry is provided with a driving mechanism for lifting or lowering the hanger, the stable structure is used to ensure the stability of the hanger when performing heavy object lifting operations driven by the driving mechanism, the stable structure includes a balancing rope crossing the hanger, and a node for connecting the two ends of the balancing rope, the node can slide along the vertical beam direction of the gantry, and the vertical beam of the gantry is provided with a sliding component that can drive the node to slide, when the hanger is lifted or lowered, the balancing rope is driven by the sliding component to follow the hanger to perform lifting and lowering movements, so that the balancing rope always remains in a taut state in the horizontal direction, thereby preventing the hanger from swinging due to external force.

[0007] Preferably, there is a pair of balancing ropes, which are symmetrically arranged on both sides of the hanger. The hanger has a sliding sleeve arranged on the balancing rope, and the balancing rope can slide in the sliding sleeve. The gantry is provided with an unwinding drive that can unwind the balancing rope.

[0008] Preferably, the node is specifically a guide wheel structure, and the two ends of the balance rope are respectively wound out from the outside of the node and connected to the unwinding drive.

[0009] Preferably, the driving mechanism comprises a frame body that can move along the crossbeam direction of the gantry, and the frame body is provided with a contact wheel for the end of the balance rope to be wound out from the inside and connected to the unwinding drive.

[0010] Preferably, the sliding assembly includes a guide rail arranged along the direction of the vertical beam of the gantry, and a slider slidably arranged on the guide rail, the node is rotatably arranged on the slider, and a gravity block is arranged on the node.

[0011] Preferably, a stopper is provided at the top of the guide rail for preventing the slider from being further lifted when the hanger is lifted to the highest point. When the slider contacts the stopper, the balance rope is in a straightened state in the horizontal direction.

[0012] Preferably, a baffle is provided on the frame body for preventing the hanger from being further lifted when the hanger is lifted to the highest point, and when the hanger contacts the baffle, the hanger is in a horizontal state.

[0013] Preferably, the stabilizing structure further comprises a detection component for detecting whether the hanger is in a horizontal state.

[0014] Preferably, the driving mechanism also includes a suspension rope arranged on the frame and connected to the hanger, the detection component includes a lateral pressure sensor fixedly arranged on the baffle, and a lateral push plate arranged between the lateral pressure sensor and the suspension rope, and the lateral push plate is an elastic structure that maintains contact with the suspension rope.

[0015] Preferably, the detection assembly includes a vertical pressure sensor fixedly mounted on the hanger, and a vertical push plate disposed between the vertical pressure sensor and the balance rope, wherein the vertical push plate is an elastic structure that maintains contact with the balance rope.

[0016] Compared with the prior art, the beneficial effects of the present application are as follows: the present invention ensures that the balancing rope and the hanger maintain a synchronized motion state through a sliding component. During this process, the balancing rope always remains in a horizontal and taut state, exerting a lateral stabilizing force on the hanger to offset lateral deviation or shaking caused by wind, heavy object swing or other external forces. The taut state of the balancing rope forms a stable supporting structure, thereby achieving stability in the bridge construction hoisting process, improving work efficiency and reducing potential hazards to the surrounding environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of a stable structure of a crane hanger used in bridge construction.

[0018] Figure 2 The present invention is a schematic diagram of a stable structure of a crane hanger for bridge construction in a state where the hanger has not been lowered.

[0019] Figure 3 The present invention is a schematic diagram showing a state in which a hanger of a stable structure of a crane hanger for bridge construction is lowered.

[0020] Figure 4 It is a three-dimensional structural diagram of a stable structure of a crane hanger for bridge construction without the gantry.

[0021] Figure 5 It is a left view of the stable structure of the crane hanger used in bridge construction without the gantry.

[0022] Figure 6 yes Figure 5 A cross-sectional view of the three-dimensional structure at AA.

[0023] Figure 7The present invention is a schematic diagram of the three-dimensional structure of a pair of balancing ropes and a hanger of a stable structure of a crane hanger for bridge construction.

[0024] Figure 8 yes Figure 5 An enlarged schematic diagram of point B.

[0025] Fig. 9 The present invention is a schematic diagram of the three-dimensional structure of a single balancing rope and a hanger of a stable structure of a crane hanger for bridge construction.

[0026] Fig.10 yes Fig. 9 Enlarged schematic diagram of point C.

[0027] The numbers in the figure are: 1. hanger; 11. hook; 12. sleeve; 2. gantry; 3. drive mechanism; 31. frame; 311. baffle; 32. resistance wheel; 33. lifting rope; 34. winch; 4. balance rope; 41. unwinding drive; 5. node; 51. gravity block; 6. sliding assembly; 61. guide rail; 611. baffle; 62. slider; 7. detection assembly; 71. lateral pressure sensor; 711. lateral push plate; 72. vertical pressure sensor; 721. vertical push plate. DETAILED DESCRIPTION

[0028] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0029] See also Figure 1-Figure 5 As shown, a stable structure of a crane hanger for bridge construction is arranged between a hanger 1 and a gantry 2, the hanger 1 is provided with a hook 11, and the cross beam of the gantry 2 is provided with a driving mechanism 3 for lifting or lowering the hanger 1, the stable structure is used to ensure the stability of the hanger 1 when performing heavy object lifting operations driven by the driving mechanism 3, the stable structure includes a balancing rope 4 crossing the hanger 1, and a node 5 for connecting the two ends of the balancing rope 4, the node 5 can slide along the vertical beam direction of the gantry 2, and the vertical beam of the gantry 2 is provided with a sliding component 6 that can drive the node 5 to slide, when the hanger 1 is lifted or lowered, the balancing rope 4 is driven by the sliding component 6 to follow the hanger 1 to perform lifting and lowering movements, so that the balancing rope 4 always remains in a horizontally taut state, preventing the hanger 1 from swinging due to external forces.

[0030] When the lifting operation begins, the driving mechanism 3 starts to lift or lower the hanger 1, and the hook 11 moves together with the weight suspended thereon. At the same time, the balancing rope 4 connecting the hanger 1 and the vertical beam of the gantry 2 is fixed at both ends on the sliding nodes 5, so it moves synchronously with the vertical movement of the hanger 1, causing the nodes 5 to slide smoothly along the vertical beam, keeping the balancing rope 4 in a taut state at all times, so that no matter what height the hanger 1 is at, the balancing rope 4 can effectively apply a lateral stabilizing force to the hanger 1 to offset the lateral deviation or shaking caused by wind, heavy object swing or other external forces. The taut state of the balancing rope 4 forms a stable supporting structure, which not only ensures the safety of the lifting operation, but also improves the operation accuracy and efficiency.

[0031] See also Figure 2-Figure 7 As shown, there is a pair of balancing ropes 4, which are symmetrically arranged on both sides of the hanger 1. The hanger 1 has a sliding sleeve 12 which is arranged on the balancing rope 4. The balancing rope 4 can slide in the sliding sleeve 12. The gantry 2 is provided with an unwinding drive 41 which can unwind the balancing rope 4.

[0032] A pair of balancing ropes 4 are symmetrically installed on both sides of the crane hanger 1 to ensure that during the lifting operation, no matter where the external force is applied to the hanger 1, the force can be evenly distributed through the two balancing ropes 4 to maintain the stability of the hanger 1. The existence of the sliding sleeve 12 allows the balancing rope 4 to freely retract and retract during the lifting and lowering process of the hanger 1, which does not affect the normal movement of the hanger 1 and can adjust the tension of the balancing rope 4 at any time to adapt to the tension demand caused by the position change of the hanger 1. That is, when the hanger 1 moves up and down, the balancing rope 4 will retract and retract in the sliding sleeve 12, and the unwinding driver 41 will adjust the tension of the rope in time to ensure that the rope is always in a taut state in the horizontal direction, thereby ensuring the stability of the hanger 1.

[0033] See also Figure 2 and Figure 4-Figure 7 As shown, the node 5 is specifically a guide wheel structure, and the two ends of the balance rope 4 are respectively wound out from the outside of the node 5 and connected to the unwinding drive 41.

[0034] The two ends of the balance rope 4 are wound out from the outside of the node 5, so that the rope can transition more smoothly when bypassing the node 5, ensuring that the balance rope 4 is in a horizontal state between the two nodes 5. When the hanger 1 starts the lifting operation, the unwinding driver 41 automatically adjusts the tension of the balance rope 4 according to the movement state of the hanger 1. Under the guidance of the node 5, the balance rope 4 is released or recovered in time as the hanger 1 moves up and down, ensuring that the tension is moderate, neither too tight to cause the hanger 1 to be unable to move, nor too loose to lose the stability effect. During the operation, if the hanger 1 tends to tilt due to wind influence or imbalance of the hanging object, the balance rope 4 quickly adjusts the tension distribution through the flexible rotation of the guide wheel node 5 and the immediate response of the unwinding driver 41, effectively resists external forces, maintains the horizontal stability of the hanger 1, and avoids swinging.

[0035] See also Figure 2-Figure 6 As shown, the driving mechanism 3 includes a frame 31 that can move along the crossbeam direction of the gantry 2, and the frame 31 is provided with a resistance wheel 32 for the end of the balance rope 4 to be wound out from the inside and connected to the unwinding driver 41.

[0036] Both ends of the balancing rope 4 pass around the friction wheel 32 on the frame 31 from the inside to ensure that the balancing rope 4 remains further stable during movement. Compared with the guidance of a single node 5, it is more conducive to maintaining the taut state of the balancing rope 4, that is, the movement of the balancing rope 4 passing around the friction wheel 32 reduces the bending stress of the balancing rope 4 and reduces the risk of wear and potential breakage compared to the direct turning at a single node 5. Before the lifting operation begins, the balancing rope 4 is guided by the friction wheel 32 to pre-set an appropriate tension. When the position of the hanger 1 needs to be adjusted, the hanger 1 is moved up and down along a predetermined path. As the hanger 1 moves, the unwinding drive 41 cooperates synchronously to maintain the tension of the balancing rope 4 in a horizontal taut state to prevent the hanger 1 from swinging due to external interference.

[0037] See also Figure 1-Figure 3 As shown, the sliding assembly 6 includes a guide rail 61 arranged along the direction of the vertical beam of the gantry 2, and a slider 62 slidably arranged on the guide rail 61, the node 5 is rotatably arranged on the slider 62, and a gravity block 51 is arranged on the node 5.

[0038] During the lifting operation, the balance rope 4 needs to be extended accordingly to adapt to the new position of the hanger 1. During this process, the balance rope 4 adjusts its length through the node 5 following the sliding of the slider 62 to ensure that the balance rope 4 is neither loose nor overly tight. The gravity block 51 transmits a stable downward pulling force through the slider 62 according to its own weight, and can keep the rope taut even when the balance rope 4 is stretched to prevent instability caused by relaxation of the balance rope 4. The continuous downward pulling force of the gravity block 51 ensures that the balance rope 4 can maintain good contact and sliding with the node 5 at any length, which means that no matter how the hanger 1 moves, the balance rope 4 can maintain a relatively constant horizontal tension, effectively counteracting the tilt or shaking of the hanger 1 caused by factors such as the shaking of the suspended object or external wind force.

[0039] See also Figure 1-Figure 3 As shown, a stopper 611 is provided at the top of the guide rail 61 for preventing the slider 62 from being further lifted when the hanger 1 is lifted to the highest point. When the slider 62 contacts the stopper 611, the balance rope 4 is in a straightened state in the horizontal direction.

[0040] When the hanger 1 rises to the limit position of its travel, that is, reaches the highest point, the slider 62 moves upward until it contacts the preset stopper 611 at the top of the guide rail 61, limiting the further rise of the slider 62. After the slider 62 contacts the stopper 611, the balance rope 4 is constrained by this fixed point and no longer continues to reel in with the lifting of the hanger 1, but remains in a fixed maximum tension state. At this time, the balance rope 4 is completely straightened in the horizontal direction without redundant bending, thereby ensuring that its stabilizing effect on the hanger 1 reaches the optimal state and ensuring the stability of the heavy object during the moving process.

[0041] See also Figure 1-Figure 3 and Figure 6 As shown, a baffle 311 is provided on the frame body 31 to prevent the hanger 1 from being further lifted when the hanger 1 is lifted to the highest point. When the hanger 1 contacts the baffle 311, the hanger 1 is in a horizontal state.

[0042] When the hanger 1 is lifted to the preset highest point, the hanger 1 contacts the baffle 311 to prevent the hanger 1 from rising further, prompting the hanger 1 to automatically adjust to a horizontal posture to ensure the levelness of the working surface. In this state, the balance rope 4 also maintains a horizontal state with the hanger 1, so that when the hanger 1 is not lowered, the balance rope 4 and the hanger 1 are in a horizontal and stable state, which is conducive to the hanger 1 to remain stable during the lowering process, providing good starting conditions for subsequent lifting operations.

[0043] See also Figure 1-Figure 3 As shown, the stabilizing structure further comprises a detection component 7 for detecting whether the hanger 1 is in a horizontal state.

[0044] Once it is detected that the hanger 1 deviates from the horizontal position and the surface balance rope 4 is in a relaxed state, the detection component 7 will feedback information to the unwinding driver 41 of the balance rope 4, and the tension of the balance rope 4 will be adjusted by the unwinding driver 41. When the balance rope 4 is straightened, the hanger 1 will quickly return to the horizontal state to prevent the hanger 1 from swinging, thereby ensuring operation safety.

[0045] See also Figure 1-Figure 3 , Figure 5 and Figure 8 As shown, the driving mechanism 3 also includes a suspension rope 33 arranged on the frame 31 and connected to the hanger 1, the detection component 7 includes a lateral pressure sensor 71 fixedly arranged on the baffle 311, and a lateral push plate 711 arranged between the lateral pressure sensor 71 and the suspension rope 33, and the lateral push plate 711 is an elastic structure that maintains contact with the suspension rope 33.

[0046] The frame 31 is provided with a winch 34 for winding the suspension rope 33, and a rotary drive for driving the winch 34, which is not shown in the figure. The lateral pressure sensor 71 fixedly mounted on the baffle 311 is used to monitor the force condition when the hanger 1 contacts the baffle 311. When the hanger 1 approaches its highest point and contacts the baffle 311, the lateral pressure sensor 71 starts to monitor the pressure distribution of the contact point. If the hanger 1 is slightly offset due to external force, resulting in uneven tension distribution of the suspension rope 33, this will indirectly affect the pressure of the lateral push plate 711 on the lateral pressure sensor 71. Once the lateral pressure sensor 71 detects a non-uniform or abnormal pressure signal, indicating that the hanger 1 may be in a non-horizontal state, this information is immediately transmitted to the rotary drive and the unwinding drive 41. According to the feedback from the lateral pressure sensor 71, the states of the suspension rope 33 and the balance rope 4 are adjusted respectively, so that the suspension rope 33 and the balance rope 4 remain in a vertical state and a horizontal state respectively, prompting the hanger 1 to maintain a horizontal position, thereby ensuring the stability and safety of the lifting operation.

[0047] See also Figure 1-Figure 3 , Fig. 9 and Fig.10 As shown, the detection assembly 7 includes a vertical pressure sensor 72 fixedly mounted on the hanger 1, and a vertical push plate 721 disposed between the vertical pressure sensor 72 and the balance rope 4, wherein the vertical push plate 721 is an elastic structure that maintains contact with the balance rope 4.

[0048] When the hoisting operation is in progress, once the hanger 1 swings due to external force, the surface balance rope 4 is in a relaxed state, and the vertical push plate 721 on the hanger 1 contacts the balance rope 4 as the hanger 1 swings. The vertical push plate 721 transmits pressure to the vertical pressure sensor 72, and the signal is transmitted to the unwinding drive 41, changing the tension distribution of the balance rope 4 to counteract the torque during the swinging of the hanger 1, causing the balance rope 4 to be pulled until it is taut, so that the hanger 1 quickly returns to a horizontal state.

[0049] The present invention ensures that the balancing rope 4 and the hanger 1 maintain a synchronous movement state through the sliding component 6. During this process, the balancing rope 4 always maintains a horizontal and tight state, exerting a lateral stabilizing force on the hanger 1 to offset the lateral deviation or shaking caused by wind, heavy object swing or other external forces. The tight state of the balancing rope 4 forms a stable supporting structure, which improves the working efficiency and reduces the potential harm to the surrounding environment.

[0050] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A stabilizing structure of a crane hanger for bridge construction, arranged between a hanger (1) and a gantry (2), the hanger (1) being provided with a hook (11), a driving mechanism (3) for lifting or lowering the hanger (1) being provided on a crossbeam of the gantry (2), the stabilizing structure being used to ensure the stability of the hanger (1) when performing a heavy object lifting operation driven by the driving mechanism (3); It is characterized in that The stabilizing structure comprises a balancing rope (4) that crosses the hanger (1), and a node (5) for connecting the two ends of the balancing rope (4), wherein the node (5) can slide along the vertical beam direction of the gantry (2), and a sliding component (6) that can drive the node (5) to slide is provided on the vertical beam of the gantry (2); When the hanger (1) is being hoisted up or down, the balancing rope (4) is driven by the sliding assembly (6) to move up and down along with the hanger (1), so that the balancing rope (4) always remains in a taut state in the horizontal direction, thereby preventing the hanger (1) from swinging due to an external force.

2. The stable structure of a crane hanger for bridge construction according to claim 1, characterized in that: A pair of balancing ropes (4) are symmetrically arranged on both sides of the hanger (1); the hanger (1) has a sliding sleeve (12) which is arranged on the balancing rope (4); the balancing rope (4) can slide in the sliding sleeve (12); and the gantry (2) is provided with an unwinding driver (41) which can unwind the balancing rope (4).

3. The stable structure of a crane hanger for bridge construction according to claim 2, characterized in that: The node (5) is specifically a guide wheel structure, and the two ends of the balance pull rope (4) are respectively wound out from the outside of the node (5) and connected to the unwinding drive (41).

4. The stable structure of a crane hanger for bridge construction according to claim 3, characterized in that: The driving mechanism (3) comprises a frame (31) that can move along the crossbeam direction of the gantry (2), and the frame (31) is provided with a resistance wheel (32) for the end of the balance pull rope (4) to be wound out from the inside and connected to the unwinding driver (41).

5. The stable structure of the crane hanger for bridge construction according to claim 3 is characterized in that: The sliding assembly (6) comprises a guide rail (61) arranged along the direction of the vertical beam of the gantry (2), and a sliding block (62) slidably arranged on the guide rail (61), the node (5) is rotatably arranged on the sliding block (62), and a gravity block (51) is arranged on the node (5).

6. The stable structure of the crane hanger for bridge construction according to claim 5, characterized in that: A stopper (611) is provided at the top end of the guide rail (61) for preventing the slider (62) from being further lifted when the hanger (1) is lifted to the highest point. When the slider (62) contacts the stopper (611), the balance rope (4) is in a straightened state in the horizontal direction.

7. The stable structure of a crane hanger for bridge construction according to claim 4, characterized in that: The frame body (31) is provided with a baffle (311) for preventing the hanger (1) from being further lifted when the hanger (1) is lifted to the highest point. When the hanger (1) contacts the baffle (311), the hanger (1) is in a horizontal state.

8. The stable structure of the crane hanger for bridge construction according to claim 7, characterized in that: The stabilizing structure also includes a detection component (7) for detecting whether the hanger (1) is in a horizontal state.

9. The stable structure of a crane hanger for bridge construction according to claim 8, characterized in that: The driving mechanism (3) further comprises a suspension rope (33) arranged on the frame (31) and connected to the suspension bracket (1); the detection assembly (7) comprises a lateral pressure sensor (71) fixedly arranged on the baffle (311), and a lateral push plate (711) arranged between the lateral pressure sensor (71) and the suspension rope (33); the lateral push plate (711) is an elastic structure that maintains a contact state with the suspension rope (33).

10. The stable structure of a crane hanger for bridge construction according to claim 8, characterized in that: The detection assembly (7) comprises a vertical pressure sensor (72) fixedly arranged on the hanger (1), and a vertical push plate (721) arranged between the vertical pressure sensor (72) and the balance rope (4); the vertical push plate (721) is an elastic structure that maintains a contact state with the balance rope (4).

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