A method of maintaining stability of a steel wire rope

Abstract

The application provides a method for keeping a steel wire rope stable, which is realized through a stabilizing rope system, and the specific steps comprise the following steps: S1, winding one end of a first traction rope on one end of a traction winch drum in a left-handed manner, and connecting the other end of the first traction rope with one end of a moving trolley; S2, winding one end of a second traction rope on the other end of the traction winch drum in a right-handed manner, and connecting the other end of the second traction rope with the other end of the moving trolley; (1) connecting a stabilizing rope on a weight, so that the weight keeps balance; (2) hoisting the weight by a crane, and loosening the stabilizing rope along with the position change of the weight; (3) driving the first traction rope and the second traction rope to release or wind according to whether the weight is ascending or descending; (4) sliding the moving trolley on a moving guide rail through the first traction rope and the second traction rope, so that the stabilizing rope keeps a constant tension state.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cranes, in particular to a method for keeping steel wire rope stable. BACKGROUND

[0002] A crane refers to a multi-action hoisting machinery for vertically lifting and horizontally transporting heavy objects within a certain range. For some heavy cranes, if the tonnage of the lifted heavy object is too large and the heavy object shakes greatly during lifting, the heavy object may hit the crane boom, causing safety accidents.

[0003] Therefore, to improve the safety of the crane when lifting heavy objects, a stabilizing cable winch is usually provided on the crane when lifting heavy objects with a tonnage that is too large. The steel wire rope of the stabilizing cable winch is connected with the heavy object. In existing stabilizing cable mechanisms, a fixed pulley is usually provided on the lifting arm of the crane as a fulcrum, so that the steel wire rope of the stabilizing cable winch maintains constant tension and increases stability. When the crane lifts the heavy object, the steel wire rope of the stabilizing cable winch will be driven by the heavy object and become loose. By winding and unwinding the steel wire rope of the stabilizing cable winch, the steel wire rope of the stabilizing cable winch maintains constant tension, and the steel wire rope of the stabilizing cable winch exerts a certain balancing force on the heavy object to reduce the shaking of the heavy object. However, in this adjustment method, each time the stabilizing cable winch winds and unwinds the steel wire rope, the adjustment range of the stabilizing cable winch for the shaking of the heavy object is small, resulting in a long adjustment time of the stabilizing cable winch for the shaking of the heavy object, which affects the lifting efficiency of the heavy object.

[0004] For example, a crane sliding stabilizing cable device is disclosed in Chinese patent application No. 2022111839363, published on January 13, 2023. The device moves the trolley by driving the trolley with a cable to exert a balancing force on the heavy object, thereby achieving stability of the heavy object. However, this structure only uses one cable to drive the trolley to move, so that only one side of the trolley is pulled by the cable. When the lifting arm swings up and down, the trolley is likely to slide to the low end of the guide rail due to gravity, which makes the device only able to move the trolley in one direction when balancing the heavy object, and cannot guarantee to control the deviation of the trolley in the other direction, thereby causing the heavy object to shake. When winding the cable, it is necessary to ensure that the trolley has a long enough cable to pull it left and right to achieve the lifting of the object up and down, so that a long enough cable needs to be wound on the winch. This makes the operation of the cable complicated. SUMMARY

[0005] The present application provides a method for keeping steel wire rope stable, which makes the movement of the trolley more stable, thereby ensuring that the heavy object is not easily shaken when the crane lifts the heavy object, and the operation is simple.

[0006] To achieve the above object, the technical scheme of the present application is:

[0007] A method for keeping the stability of steel wire rope is realized by a stable cable system, and the specific steps include:

[0008] S1 winding one end of the first traction rope on one end of the traction winch drum in a left-handed manner, and connecting the other end of the first traction rope to one end of the moving trolley.

[0009] S2 winding one end of the second traction rope on the other end of the traction winch drum in a right-handed manner, and connecting the other end of the second traction rope to the other end of the moving trolley.

[0010] (1) connecting the stable cable to the weight so that the weight is balanced.

[0011] (2) the crane lifts the weight, and the stable cable loosens with the change of the position of the weight.

[0012] (3) the traction winch drives the first traction rope and the second traction rope to release and wind according to whether the weight is rising or falling.

[0013] (31) the traction winch drives the first traction rope and the second traction rope to release and wind synchronously by clockwise rotation or counterclockwise rotation.

[0014] (4) the moving trolley is driven to slide on the moving guide rail by the first traction rope and the second traction rope, so that the stable cable always maintains a constant tension state.

[0015] The stable cable system includes 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 crane boom, the moving trolley is arranged to slide on the moving guide rail, a traction winch is arranged 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 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 directions of winding the first traction rope and the second traction rope on the traction winch drum are opposite, a stable cable is arranged on the moving trolley, and the stable cable is connected to the weight lifted by the crane.

[0016] The structure sets the moving guide rail on the boom, sets the moving trolley along the length direction of the moving guide rail, when the crane hoists the heavy object, connects the stabilizing cable on the heavy object, thus pulls the heavy object, so that the heavy object is not easy to shake, when the crane starts to hoist, the stabilizing cable is loose because of the position change of the heavy object, thus, according to the state of the heavy object rising or falling, the pulling winch drives the first pulling rope and the second pulling rope to release or wind, thus drives the moving trolley to move on the moving guide rail, thus makes the heavy object keep the constant tension state in the process of rising or falling, the setting of the first pulling rope and the second pulling rope can pull the both ends of the moving trolley, thus can prevent the moving trolley from automatically sliding when the boom swings, because the first pulling rope is wound on the winch drum by the left winding mode, the second pulling rope is wound on the winch drum by the right winding mode, the two pulling ropes realize the rising and falling of the heavy object, thus makes the first pulling rope and the second pulling rope be in two different motion states when the same winch drum rotates in one direction, such as being wound or being released, and the winch does not need to wind too long pulling rope to realize the rising and falling of the heavy object, thus the operation is convenient.

[0017] Further, the moving trolley is provided with a stabilizing cable pulley, the boom of the crane is provided with a stabilizing cable winch, the stabilizing cable winch is provided with a stabilizing cable, one end of the stabilizing cable is wound on the winch drum of the stabilizing cable winch, the other end of the stabilizing cable passes through the stabilizing cable pulley and is connected to the heavy object hoisted by the crane. The stabilizing cable winch tightens or loosens the part of the stabilizing cable between the moving trolley and the stabilizing cable winch, finally makes the heavy object keep the constant tension state in the process of rising and falling, thus ensures that the heavy object can keep stable.

[0018] Step (1) specifically includes that after the stabilizing cable is connected to the heavy object, the stabilizing cable winch tightens the stabilizing cable, so that the stabilizing cable keeps the constant tension state.

[0019] Further, the winch drum includes a first winch drum and a second winch drum, the first winch drum is wound with the first pulling rope, the second winch drum is wound with the second pulling rope, a partition plate is arranged between the first winch drum and the second winch drum, and step (3) specifically includes that one end of the first pulling rope is wound on the first winch drum by the left winding mode, one end of the second pulling rope is wound on the second winch drum by the right winding mode, thus when the pulling winch drives the winch drum, because the winding directions of the first pulling rope and the second pulling rope are opposite, when the winch drum rotates, the first pulling rope and the second pulling rope can be wound and released synchronously; the partition plate is arranged, so that the winding positions of the first pulling rope and the second pulling rope are not dislocated, thus the problem of winding disorder is avoided.

[0020] 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.

[0021] 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 for 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.

[0022] 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

[0023] Figure 1 This is a simplified schematic diagram of the cable stabilization system of the present invention.

[0024] Figure 2 This is a simplified schematic diagram of the cable stabilization system of the present invention applied to the boom of a crane.

[0025] Figure 3 for Figure 1 Enlarged view of point A in the middle.

[0026] Figure 4 This is a flowchart of the process of the present invention. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0028] like Figures 1 to 3As shown, a method for maintaining the stability of a wire rope is achieved through a stabilizing cable system. The stabilizing cable system 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 movable guide rail 11. A traction winch 2 is provided 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 other end of the second 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 movable trolley 3. The first traction rope 21 and the second traction rope 22 are wound in opposite directions on the drum of the traction winch 2. A stabilizing cable 4 is provided on the movable trolley 3, and the stabilizing cable 4 is connected to the heavy object 01 lifted by the crane.

[0029] like Figure 2 As shown, a stabilizing pulley 41 is provided on the moving trolley 3, and a stabilizing winch 42 is provided on the boom of the crane. 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, thereby ensuring the stability of the heavy object.

[0030] 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.

[0031] 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.

[0032] 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 set on the upper end face of the first guide rail 111 and the second guide rail 112 to achieve rolling connection; a connecting plate 34 is provided on the frame 31, the other end of the first traction rope 21 is set on one end of the connecting plate 34, the other end of the second traction rope 22 is set on the other end of the connecting plate 34, and the stabilizing pulley 41 is set 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.

[0033] 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.

[0034] like Figure 4 As shown, the working method of the above-mentioned cable stabilization system includes the following specific steps:

[0035] S1 winds one end of the first traction rope around one end of the traction winch drum in a left-hand twist, and connects the other end of the first traction rope to one end of the moving pulley.

[0036] S2 winds one end of the second traction rope around the other end of the traction winch drum in a right-hand twist, and connects the other end of the second traction rope to the other end of the moving pulley.

[0037] (1) Connect the stabilizing cable to the heavy object so that the heavy object is balanced; after the stabilizing cable is connected to the heavy object, the stabilizing winch tightens the stabilizing cable so that the stabilizing cable is kept under constant tension.

[0038] (2) When the crane lifts the heavy object, the stabilizing cable loosens as the position of the heavy object changes.

[0039] (3) Depending on whether the load is rising or falling, the traction winch drives the winch drum to rotate so that the first traction rope and the second traction rope are wound up and unwound synchronously.

[0040] (31) The traction winch rotates clockwise or counterclockwise to drive the first traction rope and the second traction rope to release and retract the rope synchronously.

[0041] (4) The first traction rope and the second traction rope drive the moving trolley to slide on the moving guide rail, so that the stabilizing cable always maintains a constant tension state.

[0042] Specifically, step (3) involves winding one end of the first traction rope onto the first drum in a left-handed manner and winding one end of the second traction rope onto the second drum in a right-handed manner. This ensures that when the traction winch drives the winch drum, the first and second traction ropes can be wound and unwound synchronously when the traction drum rotates because the winding directions of the first and second traction ropes are opposite.

[0043] 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 a heavy object 01, the stabilizing cable 4 is connected to the heavy object 01, thereby pulling the heavy object 01 and making it less prone to swaying. When the crane starts lifting, the stabilizing cable 4 will become loose due to the change in the position of the heavy object 01. Therefore, depending on whether the heavy object 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, thereby driving the movable trolley 3 along the movable guide rail 11. The upward movement of the weight 01 ensures that the stabilizing cable 4 maintains a constant tension during its ascent or descent. Furthermore, the first traction rope 21 and the second traction rope 22 allow both ends of the moving trolley 3 to be held, preventing automatic slippage of the moving trolley 3 due to the boom's swing. Since the first traction rope 21 and the second traction rope 22 are wound in opposite directions on the winch drum, simply driving the winch drum with the traction winch 2 is sufficient to simultaneously wind and unwind the first traction rope 21 and the second traction rope 22. This design is simple and effective.

Claims

1. A method for maintaining the stability of a wire rope, achieved through a stabilizing cable system, characterized in that: The specific steps include: S1 winds one end of the first traction rope around one end of the traction winch drum in a left-hand twist, and connects the other end of the first traction rope to one end of the moving pulley. S2 wraps one end of the second traction rope around the other end of the traction winch drum in a right-hand twist, and connects the other end of the second traction rope to the other end of the moving pulley. (1) Connect the stabilizing cable to the heavy object to keep the heavy object in balance; after the stabilizing cable is connected to the heavy object, the stabilizing winch tightens the stabilizing cable to keep the stabilizing cable in a constant tension state. (2) When the crane lifts the heavy object, the stabilizing cable loosens as the position of the heavy object changes; (3) The traction winch drives the first traction rope and the second traction rope to release and retract the rope depending on whether the load is rising or falling. (31) The traction winch rotates clockwise or counterclockwise to drive the first traction rope and the second traction rope to release and retract the rope synchronously. (4) The first traction rope and the second traction rope drive the moving trolley to slide on the moving guide rail, so that the stabilizing cable always maintains a constant tension state; The stabilizing cable system 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 traction rope and the second traction rope are wound in opposite directions on the traction winch drum. A stabilizing cable is provided on the movable trolley, and the stabilizing cable is connected to the heavy object lifted by the crane. A stabilizing pulley is provided on the mobile trolley, a stabilizing winch is provided on the boom of the crane, 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 for 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.

2. The method for maintaining the stability of a wire rope 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. Step (3) specifically includes one end of the first traction rope being wound around the first drum in a left-handed manner and one end of the second traction rope being wound around the second drum in a right-handed manner. This ensures that when the traction winch drives the winch drum, since the winding directions of the first traction rope and the second traction rope are opposite, the first traction rope and the second traction rope can be wound and unwound synchronously when the traction drum rotates.

3. The method for maintaining the stability of a wire rope 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. The second traction rope is wound around the second traction pulley and connected to the other end of the moving trolley. The guide wheel is set on the upper end face of the first guide rail and the second guide rail to achieve rolling connection.

4. The method for maintaining the stability of a wire rope 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.

Images