Steel wire rope anti-inclination and folding device

Abstract

This utility model relates to a wire rope anti-tilting and anti-stacking device, comprising a support base, an angle switch, a photoelectric switch, a limiting device, an anti-stacking rod, and a drum. A wire rope is wound on the drum, with one end fixed and the other end wound onto the drum after passing through a pulley. A drum end plate is provided at each of the left and right ends of the drum, and a support base is provided on the outer side of each end plate. The upper part of the support base is connected to the fixed end plate. A cover plate is provided on the top surface of the end plate, and an anti-stacking rod is provided between the two cover plates. Limiting devices are provided at both ends of the anti-stacking rod. A photoelectric switch is provided on one side of one of the limiting devices. An angle switch is provided on the wire rope, positioned below the fixed end of the wire rope. This utility model monitors the tilt angle of the wire rope in real time through the angle switch and detects the stacking state through the movable anti-stacking rod and the photoelectric switch, proactively preventing wire rope damage accidents.

Description

Technical Field

[0001] This utility model relates to the field of crane safety technology, and in particular to a wire rope anti-slant and anti-stack device for wire rope drum equipment such as cranes and winches. Background Technology

[0002] In crane operations, skewed or oblique pulling and overlapping of wire ropes are the main causes of safety accidents.

[0003] (1) Cable-stayed bridge problem:

[0004] Excessive tilt angle of wire rope can lead to a surge in localized stress, accelerating wear and even causing breakage. Existing solutions mostly rely on manual observation or electronic angle sensors; the former depends on the operator's experience, while the latter is susceptible to false alarms due to vibration interference.

[0005] (2) Overlapping strands problem:

[0006] Uneven arrangement of wire ropes on the drum causes overlapping and disordered grooves, resulting in structural damage to the rope. Currently, there is a lack of effective preventive measures, and inspections are mainly carried out manually after the machine is shut down, leading to delays in the detection of potential hazards.

[0007] Currently, there is no integrated device on the market that combines inclined cable detection and mechanical blocking of strand overlap, making proactive accident prevention impossible. Therefore, this invention proposes a wire rope anti-inclined cable overlap device to solve the above-mentioned problems. Summary of the Invention

[0008] The purpose of this utility model is to overcome the above-mentioned shortcomings and provide a wire rope anti-slant pulling and strand stacking device to prevent wire rope damage caused by slant pulling and lifting, effectively avoid wire rope breakage accidents caused by wire rope strand stacking, thereby achieving comprehensive protection of crane operation safety.

[0009] The purpose of this utility model is achieved as follows:

[0010] A wire rope anti-slant and anti-stack device includes a support base, an angle switch, a photoelectric switch, a limit device, an anti-stack rod, and a drum. A wire rope is wound on the drum, one end of which is a fixed end, and the other end is wound on the drum after passing through a pulley. The pulley is located below the drum, and a hook is connected below the pulley.

[0011] The drum has a drum end plate at each of its left and right ends, and a support base is provided on the outer side of each drum end plate. The upper part of the support base is connected and fixed to the drum end plate through a connector.

[0012] The top surface of the drum end plate is provided with a cover plate, and an anti-overlapping rod is provided between the left and right cover plates. The left and right ends of the anti-overlapping rod are respectively set on the cover plates and the ends of both extend beyond the outer end of the cover plates.

[0013] The anti-overlapping rod is provided with limiting devices at both ends; photoelectric switches are provided on both sides of the limiting devices, and the photoelectric switches are mounted on the cover plate through photoelectric switch support columns, with the bottom surface of the photoelectric switches flush with the top surface of the anti-overlapping rod.

[0014] An angle switch is provided on the wire rope, and the angle switch is located below the fixed end of the wire rope.

[0015] Furthermore, the lower parts of the support bases at both ends are connected by connecting rods.

[0016] Furthermore, the length of the cover plate is the same as the top surface length of the roll end plate and both ends are flush, and the width of the cover plate is greater than the top surface width of the roll end plate.

[0017] Furthermore, the limiting device includes two L-shaped plates symmetrically arranged on both sides of the anti-overlapping rod 5.

[0018] Furthermore, the L-shaped plate includes a short plate and a long plate connected vertically, with the short plate fixed to the cover plate, and the long plates of the L-shaped plates on both sides of the anti-overlapping rod forming a limiting channel to prevent the anti-overlapping rod from falling off.

[0019] Furthermore, the diameter of the wire rope is set to d centimeters, and the distance between the bottom surface of the anti-overlapping rod and the top surface of the wire rope 6 on the drum is set to 1 / 2d~d.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] This invention provides a wire rope anti-skewing and anti-stacking device. It monitors the wire rope's tilt angle in real time using a tilt switch and detects the stacking status using a movable anti-stacking rod and a photoelectric switch. When the tilt or stacking exceeds the limit, the crane's lifting circuit is simultaneously cut off. An alarm device provides real-time alerts to operators, and a counter provides effective data support for management personnel. This invention proactively prevents wire rope damage accidents, is compatible with various types of cranes, and requires no modification to the control circuit. It has the following advantages:

[0022] (1) Proactive accident prevention:

[0023] A dual mechanical-electronic triggering mechanism enables real-time blocking of inclined stays and overlapping strands, preventing structural damage to the wire rope;

[0024] (2) Real-time early warning:

[0025] Real-time warnings are issued via an alarm buzzer;

[0026] (3) Strong structural compatibility:

[0027] Modular design adapts to various crane drums, requiring no modification to the control circuit during installation;

[0028] (4) Low maintenance cost:

[0029] Mechanical components require no consumables, tilt switches and photoelectric switches have a long service life, and overall maintenance costs are low;

[0030] (5) Significant safety benefits:

[0031] To prevent falls caused by broken wire ropes and improve the inherent safety level of cranes. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the structure of this utility model.

[0033] Figure 2 This is the front view of the present invention.

[0034] Figure 3 for Figure 2 A magnified view of part A.

[0035] Figure 4 This is a side view of the present invention.

[0036] in:

[0037] Support base 1, tilt switch 2, photoelectric switch 3, photoelectric switch support column 31, limit device 4, L-shaped plate 41, anti-overlapping rod 5, wire rope 6, drum 7, drum end plate 71, pulley 8, hook 9, cover plate 10. Detailed Implementation

[0038] To better understand the technical solution of this utility model, a detailed description will be provided below in conjunction with relevant illustrations. It should be understood that the specific embodiments described below are not intended to limit the specific implementation of the technical solution of this utility model, but are merely possible implementations of the technical solution of this utility model. It should be noted that the descriptions of the positional relationships of the components herein, such as component A being located above component B, are based on the relative positions of the components in the illustrations and are not intended to limit the actual positional relationships of the components. Example

[0039] See Figure 1-4 , Figure 1 A structural schematic diagram of this utility model has been drawn. As shown in the figure, this utility model relates to a wire rope anti-slant and anti-stack device, which includes a support base 1, an angle switch 2, a photoelectric switch 3, a limiting device 4, an anti-stack rod 5, and a drum 7. A wire rope 6 is wound on the drum 7. One end of the wire rope 6 is a fixed end, and the other end is wound on the drum 7 after passing through a pulley 8. The pulley 8 is located below the drum 7, and a hook 9 is connected to the bottom of the pulley 8.

[0040] The left and right ends of the drum 7 are respectively provided with a drum end plate 71, and a support base 1 is provided on the outer side of each drum end plate 71. The lower parts of the support bases 1 at the left and right ends are connected by a connecting rod, and the upper part of the support base 1 is connected and fixed to the drum end plate 71 by a connector.

[0041] The top surface of the drum end plate 71 is provided with a cover plate 10. The length of the cover plate 10 is the same as the length of the top surface of the drum end plate 71 and both ends are flush. The width of the cover plate 10 is greater than the width of the top surface of the drum end plate 71. An anti-overlapping rod 5 is provided between the left and right cover plates 10. The left and right ends of the anti-overlapping rod 5 are respectively provided on the cover plate 10 and the ends of both extend beyond the outer end of the cover plate 10.

[0042] The anti-overlapping rod 5 is provided with limiting devices 4 at both ends. The limiting devices 4 include two L-shaped plates 41 symmetrically arranged on both sides of the anti-overlapping rod 5. The L-shaped plates 41 include a short plate and a long plate connected vertically. The short plate is fixed on the cover plate 10. The long plate of the L-shaped plates 41 on both sides of the anti-overlapping rod 5 forms a limiting channel to prevent the anti-overlapping rod 5 from falling off.

[0043] The limiting device 4 is provided with photoelectric switches 3 on both sides. The photoelectric switches 3 are mounted on the cover plate 10 through photoelectric switch support columns 31. The bottom surface of the photoelectric switches 3 is flush with the top surface of the anti-overlapping rod 5.

[0044] The diameter of the wire rope 6 is set to d centimeters. The distance between the bottom surface of the anti-overlapping rod 5 and the top surface of the wire rope 6 on the drum 7 is set to 1 / 2d~d. When the wire rope 6 on the drum 7 is stranded, the stranded wire rope 6 touches the anti-overlapping rod 5, and the anti-overlapping rod 5 moves upward and tilts up. As a result, the photoelectric switch 3 captures and activates, cutting off the crane's lifting circuit, thereby achieving the function of preventing the wire rope from stranding.

[0045] An angle switch 2 is provided on the wire rope 6. The angle switch 2 is located below the fixed end of the wire rope 6. The angle switch 2 is used to set the alarm degree according to the user's needs. When the tilt angle of the wire rope 6 exceeds the set tilt angle, an alarm is triggered, and the angle switch 2 cuts off the crane's lifting circuit.

[0046] Working principle:

[0047] This utility model relates to a wire rope anti-slant-pull-overlap device, the core components of which are as follows:

[0048] 1. Support base: Symmetrically located at both ends of the drum and reinforced by connecting rods;

[0049] 2. Inclination switch: Installed below the fixed end of the wire rope to monitor the tilt angle in real time;

[0050] 3. Photoelectric switch: vertically fixed to the cover plate by support columns;

[0051] 4. Limiting device: It consists of symmetrical L-shaped plates, forming an anti-detachment limiting channel;

[0052] 5. Anti-overlapping rod: spans across the top of the drum, with both ends restrained by limiting devices;

[0053] 6. Cover plate: Covers the end plate of the drum and provides an installation platform.

[0054] It consists of the following three mechanisms:

[0055] 1. Anti-pillar stacking dynamic triggering mechanism:

[0056] The distance between the bottom surface of the anti-overlapping rod and the top surface of the wire rope is set to ½d to d (d is the diameter of the wire rope).

[0057] When a stacking occurs, the stacked wire ropes lift the anti-stack rod, triggering the photoelectric switch.

[0058] 2. Dual security blocking mechanism:

[0059] Tilting Interception: The tilt switch detects an excessive angle and cuts off the crane's lifting circuit;

[0060] Stacking interruption: The photoelectric switch detects the displacement of the anti-stacking rod and then simultaneously cuts off the rising circuit.

[0061] 3. Anti-slip limiting mechanism:

[0062] The short plate of the L-shaped plate is fixed to the cover plate, and the long plate forms an enclosing channel to prevent the anti-overlapping rod from falling off laterally.

[0063] This utility model provides a wire rope anti-skewing and anti-stacking device. When the wire rope is pulled skewed, the tilt switch 2 will activate, cutting off the crane's lifting circuit, thus preventing the wire rope from skewing during operation. When the wire rope stacks, it touches the mechanical anti-stacking rod 5, which moves upward. At this time, the photoelectric switch 3 activates, cutting off the crane's lifting circuit, thus preventing the wire rope from stacking. The limit device 4 ensures that the mechanical anti-stacking rod 5 will not sway left or right due to the crane's movement.

[0064] This utility model discloses a wire rope anti-slant and anti-stack device, which is easy to install and can be applied to cranes of various manufacturers and models.

[0065] The device of this utility model can be installed without changing its control circuit, which falls within the scope of simple crane repair and does not require supervision and inspection.

[0066] The device of this invention can also be equipped with an audible and visual alarm to provide timely alarm signals to workers in the event of phenomena such as wire rope skewing or strand overlap.

[0067] The device of this invention can also be equipped with a counting function, providing effective data support for managers.

[0068] This invention effectively reduces the damage to wire ropes caused by skewed pulling and oblique lifting, significantly reduces maintenance costs, effectively protects the safety of lifting operations, and improves the inherent safety level of cranes.

[0069] The above are merely specific application examples of this utility model and do not constitute any limitation on the scope of protection of this utility model. All technical solutions formed by equivalent transformations or equivalent substitutions fall within the scope of protection of this utility model.

Claims

1. A wire rope anti-slant-stretching device, characterized in that: It includes a support base (1), tilt switch (2), photoelectric switch (3), limit device (4), anti-overlap rod (5) and drum (7). A steel wire rope (6) is wound on the drum (7). One end of the steel wire rope (6) is a fixed end, and the other end is wound on the drum (7) after passing through a pulley (8). The pulley (8) is located below the drum (7), and a hook (9) is connected below the pulley (8). The left and right ends of the drum (7) are respectively provided with a drum end plate (71), and a support base (1) is provided on the outer side of each drum end plate (71). The upper part of the support base (1) is connected and fixed to the drum end plate (71) through a connector. The top surface of the roll end plate (71) is provided with a cover plate (10), and an anti-overlapping rod (5) is provided between the two cover plates (10). The left and right ends of the anti-overlapping rod (5) are respectively provided on the cover plate (10) and the ends of both extend beyond the outer end of the cover plate (10). The anti-overlapping rod (5) is provided with limiting devices (4) at both ends; photoelectric switches (3) are provided on both sides of the limiting device (4), and the photoelectric switches (3) are mounted on the cover plate (10) through photoelectric switch support column (31). The bottom surface of the photoelectric switch (3) is flush with the top surface of the anti-overlapping rod (5). An angle switch (2) is provided on the wire rope (6), and the angle switch (2) is located below the fixed end of the wire rope (6).

2. The anti-skewing and anti-stacking device for steel wire rope according to claim 1, characterized in that: The lower parts of the support bases (1) at the left and right ends are connected by connecting rods.

3. The anti-skewing and anti-stacking device for steel wire rope according to claim 1, characterized in that: The length of the cover plate (10) is the same as the top surface length of the roll end plate (71) and both ends are flush. The width of the cover plate (10) is greater than the top surface width of the roll end plate (71).

4. The anti-skewing and anti-stacking device for steel wire rope according to claim 1, characterized in that: The limiting device (4) includes two L-shaped plates (41) symmetrically arranged on both sides of the anti-overlapping rod (5).

5. The anti-skewing and anti-stacking device for steel wire rope according to claim 4, characterized in that: The L-shaped plate (41) includes a short plate and a long plate connected vertically. The short plate is fixed on the cover plate (10). The long plates of the L-shaped plate (41) on both sides of the anti-overlapping rod (5) form a limiting channel to prevent the anti-overlapping rod (5) from falling off.

6. The anti-skewing and anti-stacking device for steel wire rope according to claim 1, characterized in that: The diameter of the wire rope (6) is set to d cm, and the distance between the bottom surface of the anti-overlapping rod (5) and the top surface of the wire rope (6) on the drum (7) is set to 1 / 2d~d.

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