A steady line system with good smoothness

Abstract

The application provides a stable cable system with good stability, which is arranged on a boom of a crane and comprises a traction winch, a first traction rope, a second traction rope and a moving trolley, a moving guide rail is arranged in the length direction of the boom of the crane, the moving trolley is arranged on the moving guide rail and slides, the traction winch is arranged at one end of the boom, one end of the first traction rope is wound around one end of a traction winch drum, and the other end of the first traction rope is connected to one end of the moving trolley; the other end of the second traction rope is wound around the other end of the traction winch drum, and the other end of the second traction rope is connected to the other end of the moving trolley, the first traction rope and the second traction rope are wound in opposite directions on the traction winch drum, a stable cable is arranged on the moving trolley, and the stable cable is connected to a heavy object lifted by the crane, and the structure can keep the stable cable and the heavy object in a constant tension state, thereby preventing the heavy object from shaking.

Description

Technical Field

[0001] This invention relates to the field of crane technology, and more specifically to a stable cable stabilizing system with good stability. Background Technology

[0002] A crane is a multi-action lifting machine that vertically lifts and horizontally moves heavy objects within a certain range. For some heavy-duty cranes, if the tonnage of the object being lifted is too large and the object sways significantly during the lifting process, the object may collide with the crane boom, causing a safety accident.

[0003] Therefore, to improve the safety of cranes when lifting heavy objects, a stabilizing winch is usually installed on the crane when lifting excessively heavy objects. The wire rope of the stabilizing winch is connected to the load. In most existing stabilizing mechanisms, a fixed pulley is installed on the crane boom as a fulcrum to maintain constant tension in the wire rope of the stabilizing winch, increasing stability. With this setup, when the crane is lifting a heavy object, the wire rope of the stabilizing winch becomes loose due to the load's movement. The stabilizing winch is then used to raise and lower the wire rope to maintain constant tension, and the wire rope applies a certain balancing force to the load to reduce swaying. However, in this adjustment method, each raising and lowering of the wire rope by the stabilizing winch can only adjust the swaying of the load by a small amount, resulting in a longer overall adjustment time for the stabilizing winch, which affects the lifting efficiency of the load.

[0004] For example, Chinese patent application number 2022111839363, published on January 13, 2023, discloses a crane sliding stabilizing cable device. This structure uses a trolley, driven by a cable, to apply a balancing force to the load, thereby achieving stability. However, this structure uses only one cable to drive the trolley, meaning only one side of the trolley is held by the cable. When the boom swings up and down, the trolley is prone to sliding towards the lower end of the guide rail due to gravity. Furthermore, relying on only one cable makes it susceptible to deviation to one side when additional stabilizing cables are added. Summary of the Invention

[0005] This invention provides a stabilizing cable system with good stability, which enables the stabilizing cable and the weight to be in a constant tension state, thereby ensuring that the weight is not easily shaken.

[0006] To achieve the above objectives, the technical solution of the present invention is: a stable cable system with good stability, wherein the stable cable system is installed on the boom of a crane, including a traction winch, a first traction rope, a second traction rope, and a movable trolley. A movable guide rail is provided along the length direction of the crane boom, and the movable trolley is slidably mounted on the movable guide rail. A traction winch is provided at one end of the boom. One end of the first traction rope is wound around one end of the traction winch drum, and the other end of the first traction rope is connected to one end of the movable trolley. The other end of the second traction rope is wound around the other end of the traction winch drum, and the other end of the second traction rope is connected to the other end of the movable trolley. The first traction rope and the second traction rope are wound in opposite directions on the traction winch drum. A stable cable is provided on the movable trolley, and a stable cable winch is provided on the crane boom. One end of the stable cable is connected to the stable cable winch, and the other end of the stable cable is wound around the movable trolley and connected to the heavy object lifted by the crane.

[0007] The aforementioned structure, by installing a movable guide rail on the boom and a movable trolley along the length of the guide rail, allows the crane to maintain a constant tension between the stabilizing cable and the load when lifting a heavy object. This tension is achieved by connecting the stabilizing cable to the load and then tightening it via a stabilizing winch. This tension prevents the load from swaying. However, as the crane begins lifting, the stabilizing cable loosens due to changes in the load's position. Therefore, depending on whether the load is rising or falling, the traction winch drives the first and second traction ropes to release or retract the ropes, thus driving the crane to lift the load. The movable trolley moves on the movable guide rail, thus ensuring that the stabilizing cable maintains a constant tension during the lifting or lowering of the load. The first and second traction ropes ensure that both ends of the movable trolley can be held, preventing automatic slippage due to boom swing. Since the first and second traction ropes are wound in opposite directions on the winch drum, simply driving the winch drum to rotate allows for simultaneous winding and unwinding of the first and second traction ropes. The structure is simple and effective.

[0008] Furthermore, a stabilizing pulley is provided on the moving trolley, and a stabilizing cable is provided on the stabilizing winch. One end of the stabilizing cable is wound around the drum of the stabilizing winch, and the other end of the stabilizing cable passes through the stabilizing pulley and connects to the heavy object lifted by the crane. By tightening or loosening the portion of the stabilizing cable between the moving trolley and the stabilizing winch, the stabilizing cable is kept under constant tension during the lifting and lowering of the heavy object, thus ensuring the stability of the heavy object.

[0009] Furthermore, the winch drum includes a first drum and a second drum, with a first traction rope wound on the first drum and a second traction rope wound on the second drum. A partition is provided between the first drum and the second drum. The partition ensures that the winding positions of the first traction rope and the second traction rope are not misaligned, thereby avoiding the problem of rope tangling.

[0010] Furthermore, the boom is equipped with one or more first traction pulleys and one or more second traction pulleys. The first traction rope is wound around the first traction pulley and connected to one end of the moving trolley, and the second traction rope is wound around the second traction pulley and connected to the other end of the moving trolley. The traction pulley configuration makes it easier to connect the first traction rope and the second traction rope to the moving trolley.

[0011] Furthermore, the movable trolley includes a frame, movable wheels, and guide wheels. The movable wheels are rotatably mounted below the frame via movable wheel axles. Guide wheels are located at both ends of the frame. The movable guide rail includes a first guide rail and a second guide rail, forming a movable channel between the first and second guide rails. The movable wheels are located within the movable channel and are in rolling connection with the inner surfaces of the first and second guide rails. The guide wheels are located on the upper surfaces of the first and second guide rails, forming a rolling connection. A connecting plate is provided on the frame. The other end of a first traction rope is located at one end of the connecting plate, and the other end of a second traction rope is located at the other end of the connecting plate. The stabilizing pulley is located on the connecting plate. Thus, by setting the movable wheels between the first and second guide rails, the frame can slide on the movable guide rail.

[0012] Furthermore, the inner surfaces of the first and second guide rails are provided with outwardly recessed grooves, and the movable wheel is located in the grooves. By providing the grooves, the movable wheel can be more easily positioned between the first and second guide rails, and the grooves can also restrict the movable wheel so that it cannot detach from the first and second guide rails. Attached Figure Description

[0013] Figure 1 This is a simplified schematic diagram of the cable stabilization system of the present invention.

[0014] Figure 2 This is a simplified schematic diagram of the cable stabilization system of the present invention applied to the boom of a crane.

[0015] Figure 3 for Figure 1 Enlarged view of point A in the middle. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0017] like Figures 1 to 3As shown, a stable cable system with good stability is provided. The system is mounted on the boom 1 of a crane and includes a traction winch 2, a first traction rope 21, a second traction rope 22, and a movable trolley 3. A movable guide rail 11 is provided along the length of the crane boom 1, and the movable trolley 3 is slidably mounted on the guide rail 11. The traction winch 2 is located at one end of the boom 1. One end of the first traction rope 21 is wound around one end of the drum of the traction winch 2, and the other end of the first traction rope 21 is connected to one end of the movable trolley 3. The second traction rope 22... The other end of the traction rope 22 is wound around the other end of the drum of the traction winch 2, and the other end of the second traction rope 22 is connected to the other end of the moving trolley 3. The first traction rope 21 and the second traction rope 22 are wound around the drum of the traction winch 2 in opposite directions. A stabilizing cable 4 is provided on the moving trolley 3, and a stabilizing winch 42 is provided on the boom of the crane. One end of the stabilizing cable 4 is connected to the stabilizing winch 42, and the other end of the stabilizing cable 4 is wound around the moving trolley 3 and connected to the heavy object 01 lifted by the crane.

[0018] like Figure 2 As shown, a stabilizing pulley 41 is provided on the moving trolley 3, and a stabilizing cable 4 is provided on the stabilizing winch 42. One end of the stabilizing cable 4 is wound around the drum of the stabilizing winch 42, and the other end of the stabilizing cable 4 passes through the stabilizing pulley 41 and connects to the heavy object 01 lifted by the crane. By tightening or loosening the portion of the stabilizing cable 4 between the moving trolley 3 and the stabilizing winch 42, the stabilizing cable 4 is kept under constant tension during the lifting and lowering of the heavy object, thus ensuring the stability of the heavy object.

[0019] like Figure 1 As shown, the winch drum includes a first drum 23 and a second drum 24. A first traction rope 21 is wound on the first drum 23, and a second traction rope 22 is wound on the second drum 24. A partition 25 is provided between the first drum 21 and the second drum 22. The partition 25 ensures that the winding positions of the first traction rope 21 and the second traction rope 22 are not misaligned, thereby avoiding the problem of rope tangling.

[0020] like Figure 2 As shown, the boom 1 is also provided with one or more first traction pulleys 27 and one or more second traction pulleys 28. The first traction rope 21 is wound around the first traction pulley 27 and connected to one end of the movable trolley 3, and the second traction rope 22 is wound around the second traction pulley 28 and connected to the other end of the movable trolley 3. The traction pulley arrangement makes it easier to connect the first traction rope 21 and the second traction rope 22 to the movable trolley.

[0021] like Figure 3As shown, the movable trolley 3 includes a frame 31, movable wheels 32, and guide wheels 33. The movable wheels 32 are rotatably mounted below the frame 31 via movable wheel axles 321. Guide wheels 33 are provided at both ends of the frame 31. The movable guide rail 11 includes a first guide rail 111 and a second guide rail 112, forming a moving channel 113 between the first guide rail 111 and the second guide rail 112. The movable wheels 32 are disposed within the moving channel 113 and are rollably connected to the inner surfaces of the first guide rail 111 and the second guide rail 112. The guide wheel 33 is disposed on the upper end face of the first guide rail 111 and the second guide rail 112 to form a rolling connection; a connecting plate 34 is provided on the frame 31, the other end of the first traction rope 21 is disposed on one end of the connecting plate 34, the other end of the second traction rope 22 is disposed on the other end of the connecting plate 34, and the stabilizing pulley 41 is disposed on the connecting plate 34. Thus, by setting the moving wheel 32 between the first guide rail 111 and the second guide rail 112, the frame 31 can slide on the moving guide rail 11.

[0022] The inner surfaces of the first guide rail 111 and the second guide rail 112 are provided with outwardly recessed grooves (not shown in the figure). The movable wheel 32 is located in the groove. By providing the groove, the movable wheel can be more easily positioned between the first guide rail and the second guide rail, and the groove can also restrict the movable wheel so that it cannot detach from the first guide rail and the second guide rail.

[0023] The working principle of this invention is as follows: By setting a movable guide rail 11 on the boom 1 and a movable trolley 3 arranged along the length of the movable guide rail 11, when the crane is lifting the load 01, the stabilizing cable 1 is connected to the load 01, and then the stabilizing cable is tightened by the stabilizing winch, so that there is a certain constant tension between the stabilizing cable and the load, thereby pulling the load 01 and making the load 01 less prone to swaying. When the crane starts to lift, the stabilizing cable 4 will become loose due to the change in the position of the load 01. Therefore, depending on whether the load 01 is rising or falling, the traction winch 2 drives the first traction rope 21 and the second traction rope 22 to release or retract the rope. This drives the movable trolley 3 to move on the movable guide rail 11, so that the stabilizing cable 4 maintains a certain constant tension during the lifting or lowering of the weight 01. Furthermore, the first traction rope 21 and the second traction rope 22 ensure that both ends of the movable trolley 3 can be pulled, thus preventing the movable trolley 3 from automatically sliding when the boom swings. Since the first traction rope 21 and the second traction rope 22 are wound in opposite directions on the winch drum, the first traction rope 21 and the second traction rope 22 can be simultaneously wound and unwound by simply driving the winch drum to rotate. The structure is simple and effective.

Claims

1. A stable cable system with good stability, wherein the stable cable system is installed on the boom of a crane, characterized in that: The crane includes a traction winch, a first traction rope, a second traction rope, and a movable trolley. A movable guide rail is provided along the length of the crane boom, and the movable trolley is slidably mounted on the movable guide rail. A traction winch is located at one end of the boom. One end of the first traction rope is wound around one end of the traction winch drum, and the other end of the first traction rope is connected to one end of the movable trolley. The other end of the second traction rope is wound around the other end of the traction winch drum, and the other end of the second traction rope is connected to the other end of the movable trolley. The first and second traction ropes are wound in opposite directions around the traction winch drum. A stabilizing cable is provided on the movable trolley, and a stabilizing winch is provided on the crane boom. One end of the stabilizing cable is connected to the stabilizing winch, and the other end of the stabilizing cable is wound around the movable trolley and connected to the heavy object lifted by the crane. A stabilizing pulley is provided on the moving trolley, and a stabilizing cable is provided on the stabilizing winch. One end of the stabilizing cable is wound around the drum of the stabilizing winch, and the other end of the stabilizing cable passes through the stabilizing pulley and connects to the heavy object lifted by the crane. The movable trolley includes a frame, movable wheels, and guide wheels. The movable wheels are rotatably mounted below the frame via movable wheel axles. Guide wheels are located at both ends of the frame. The movable guide rail includes a first guide rail and a second guide rail, forming a movable channel between the first and second guide rails. The movable wheels are located within the movable channel and are in rolling connection with the inner surfaces of the first and second guide rails. The guide wheels are located on the upper surfaces of the first and second guide rails and are in rolling connection with them. A connecting plate is provided on the frame. The other end of a first traction rope is located at one end of the connecting plate, and the other end of a second traction rope is located at the other end of the connecting plate. The stabilizing pulley is located on the connecting plate.

2. The stable cable system with good stability according to claim 1, characterized in that: The winch drum includes a first drum and a second drum. A first traction rope is wound on the first drum, and a second traction rope is wound on the second drum. A partition is provided between the first drum and the second drum.

3. The stable cable system with good stability according to claim 1, characterized in that: The boom is also provided with one or more first traction pulleys and one or more second traction pulleys. The first traction rope is wound around the first traction pulley and connected to one end of the moving trolley, and the second traction rope is wound around the second traction pulley and connected to the other end of the moving trolley.

4. The stable cable system with good stability according to claim 1, characterized in that: The inner surfaces of the first and second guide rails are provided with outwardly recessed grooves, and the movable wheel is located in the grooves.

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