A flexible line guide

Abstract

The utility model discloses a kind of flexible cable guiding devices, including horizontal extension's support plate, the middle part of support plate has guide hole, support plate bottom surface is equipped with rope connection component, support plate top surface is equipped with send rope component;Rope connection component includes the entry seat fixed in support plate, the entry seat is fixedly connected with the entry pulley of flexible cable adaptation on pivot, entry pulley is arranged below guide hole in alignment;Send rope component includes the base fixed in support plate, the base is hingedly connected with the rotary frame for flexible cable to pass through and can rotate around vertical axis, rotary frame middle part fixedly connected with the exit pulley of flexible cable adaptation, the base middle part has the positioning hole in alignment in guide hole upper side for flexible cable to pass through, exit pulley is arranged above positioning hole in alignment.The flexible cable guiding device can optimize the guiding support and stress distribution in flexible cable working process, avoid flexible cable to break and reduce the structure wear and tear of flexible cable and pulley, to improve the safety of flexible cable related operation, and reduce equipment maintenance cost.

Description

Technical Field

[0001] This utility model relates to the technical field of flexible cables and their supporting guiding aids, and in particular to a flexible cable guiding device. Background Technology

[0002] In typical crane, aerial work platform, and cableway transportation operations, the supporting ropes, cables, and other load-bearing flexible cable components often need to frequently change their working direction according to the working conditions to complete the corresponding lifting or traction of heavy objects.

[0003] Currently, the industry typically uses conventional directional pulley mechanisms to support and guide flexible cables. However, due to the inherent structural characteristics of conventional directional pulley mechanisms, the direction of tension on flexible cables adapted to them is relatively fixed, making it unsuitable for tension operations originating from multiple angles. Consequently, it cannot meet the angle adjustment requirements of flexible cables during actual operation. This leads to a situation where, during actual operation, when the working direction of the flexible cable is adjusted due to changes in working conditions, the cable's extension structure twists or changes direction. At the fixed turning point where the cable adapts to the pulley, a sudden change in curvature occurs, causing a sharp increase in local stress at this point. Long-term operation can lead to wire breakage or even breakage of the flexible cable at this location, affecting operational safety.

[0004] Furthermore, existing conventional directional pulley mechanisms cannot adjust their working direction accordingly to changes in the direction of the tension operation. This leads to frequent sliding friction at the mating contact surface between the pulley and the flexible cable, resulting in accelerated wear on both the pulley and cable main structures. This significantly shortens the service life of these components, necessitating frequent maintenance and replacement of the pulleys and cables. This not only affects the operational continuity of the related flexible cable equipment and increases operating and maintenance costs, but also poses safety hazards during operation.

[0005] In view of this, how to optimize the guiding support and stress distribution during the operation of flexible cables, avoid cable breakage and reduce structural wear of flexible cables and pulleys, thereby improving the safety of flexible cable-related operations and reducing equipment maintenance costs, is an important technical problem that needs to be solved by those skilled in the art. Utility Model Content

[0006] The purpose of this invention is to provide a flexible cable guiding device that can optimize the guiding support and stress distribution during the operation of the flexible cable, prevent the flexible cable from breaking, and reduce the structural wear of the flexible cable and pulleys, thereby improving the safety of flexible cable-related operations and reducing equipment maintenance costs.

[0007] To solve the above technical problems, this utility model provides a flexible cable guiding device, including a horizontally extending support plate, a guide hole penetrating through the middle of the support plate in the vertical direction, a rope receiving assembly that corresponds to and matches the guide hole on the bottom surface of the support plate, and a rope feeding assembly that corresponds to and matches the guide hole on the top surface of the support plate.

[0008] The rope receiving assembly includes a rope inlet seat fixedly disposed on the bottom surface of the support plate. A rope inlet pulley adapted to the winding of the flexible rope is hinged to the rope inlet seat. The rotation axis of the rope inlet pulley extends in the horizontal direction, and the rope inlet pulley is arranged below the guide hole.

[0009] The rope feeding assembly includes a base fixedly mounted on the top surface of the support plate. A rotating frame for the flexible rope to pass through and capable of rotating about a vertical axis is hinged to the base. A rope output pulley adapted to the winding of the flexible rope is fixedly hinged to the middle of the rotating frame. The rotation axis of the rope output pulley extends horizontally. The middle of the base has a positioning hole aligned and connected above the guide hole for the flexible rope to pass through. The positioning hole is coaxial with the guide hole. The rope output pulley is aligned and arranged above the positioning hole.

[0010] Preferably, the rotary frame includes a rotary table rotatably mounted on the base and two side guard plates vertically arranged on the top of the rotary table, wherein the two side guard plates are arranged in parallel and are fitted with a clearance.

[0011] The slewing frame also includes a rope outlet pin arranged horizontally between the two side guard plates. The two ends of the rope outlet pin are respectively fixed to the middle of the two side guard plates. The rope outlet pulley is coaxially sleeved on the rope outlet pin and can rotate around a fixed axis.

[0012] Preferably, the slewing frame further includes a limiting top rod horizontally arranged between the two side guard plates. The two ends of the limiting top rod are respectively fixed to the top of the side guard plate. The axis of the limiting top rod is parallel to that of the rope outlet pin, and the limiting top rod is clearance-fitted with the rope outlet pulley to form a limiting gap for the flexible rope to pass through.

[0013] Preferably, the tangent of the bottom arc surface of the pulley groove at the rope-connecting end of the rope-discharging pulley is collinear with the axis of the positioning hole.

[0014] Preferably, the rope feeding assembly further includes a rope guide cover disposed above the base. The rope guide cover is aligned and fastened to the base in a vertical direction to form a rotating cavity between the inner wall of the rope guide cover and the base. The side guard plate, the rope exit pin, and the rope exit pulley are all located in the rotating cavity. The side wall of the rope guide cover has a rope guide hole that communicates with the rotating cavity for the flexible rope to pass through.

[0015] Preferably, the rope hole is an oblong hole with its long axis extending vertically.

[0016] Preferably, the side guard plate has a process hole in the middle.

[0017] Preferably, the tangent of the bottom arc surface of the pulley groove at the rope-feeding end of the rope-feeding pulley is collinear with the axis of the positioning hole.

[0018] Preferably, the inner walls of the pulley groove of the rope inlet pulley and the inner walls of the pulley groove of the rope outlet pulley are respectively coated with a ceramic protective layer.

[0019] Preferably, there are at least two guide holes, and each guide hole is arranged in an array along the horizontal direction on the support plate.

[0020] Compared to the aforementioned background technology, the flexible cable guiding device provided by this utility model, during operation, reliably arranges the flexible cable guiding device at the appropriate work position of the corresponding lifting equipment or aerial work equipment, and ensures the reliable installation and fixation of the support plate, so as to use the support plate as the positioning assembly and support structure foundation for the various components of the flexible cable guiding device. During equipment operation, the flexible cable is introduced from below the inlet pulley and wound around the pulley groove of the inlet pulley. After being guided by the inlet pulley, the flexible cable continues upward, passing through the guide hole and positioning hole in sequence, and then wound around the pulley groove of the outlet pulley. Finally, guided by the outlet pulley, the flexible cable is led out from the side of the outlet pulley, so that the lead-out end of the flexible cable can be reliably connected to the downstream lifting object or terminal work device, while ensuring that the other end of the flexible cable, i.e., the force-applying end, is reliably connected to the lifting equipment or aerial work power equipment. During the implementation of corresponding flexible cable operations, when the lead-out end of the flexible cable needs to be adjusted in position or twisted synchronously with the lifted object or the corresponding terminal operation device, the flexible cable transmits the force to the lead-out pulley through contact with it. The lead-out pulley then transmits the force synchronously to the slewing frame, causing the slewing frame to rotate synchronously with the main structure of the flexible cable. This ensures that the lead-out end of the flexible cable and its main structure complete reliable deflection adjustments. During this period, the main structure in the middle of the flexible cable remains within the guide hole and positioning hole, thus ensuring that the matching positions of the flexible cable with the lead-in and lead-out pulleys remain constant. This also ensures that the flexible cable and its mating parts, such as the pulleys, maintain rolling fit, effectively preventing localized stress concentration caused by cable twisting or changes in the working direction. This avoids wear on the flexible cable and pulley main structure caused by localized stress concentration, effectively eliminating the risk of flexible cable breakage, significantly extending the service life of the flexible cable, improving the safety and stability of related operations, and correspondingly reducing the overall maintenance costs of the corresponding lifting and other operation equipment.

[0021] In another preferred embodiment of this utility model, the rotary frame includes a rotary table rotatably mounted on the base and two side guard plates vertically arranged on the top of the rotary table. The two side guard plates are arranged in parallel and are fitted with a clearance. The rotary frame also includes a rope outlet pin arranged horizontally between the two side guard plates. The two ends of the rope outlet pin are respectively fixed to the middle of the two side guard plates. The rope outlet pulley is coaxially sleeved on the rope outlet pin and can rotate around a fixed axis. The two side guard plates provide reliable structural support and positioning foundation for the rope exit pin, and provide reliable lateral structural protection for the rope exit pulley located between the two side guard plates. At the same time, the vertical extension structure of the side guard plates themselves can provide appropriate lateral limiting structure extension for the pulley groove of the rope exit pulley to prevent the flexible rope from coming out of the pulley groove of the rope exit pulley. This further ensures the stability of the assembly structure of the rope exit pulley and the flexible rope, optimizes the matching transmission effect between the two, and further improves the guiding and supporting effect of the flexible rope guiding device on the flexible rope, making the corresponding equipment operation and work process more stable and efficient. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 An isometric view of a flexible cable guiding device provided in a specific embodiment of this utility model;

[0024] Figure 2 for Figure 1 Axonometric view of the assembly structure after the guide rope cover has been removed;

[0025] Figure 3 for Figure 2 A bottom view;

[0026] Figure 4 for Figure 2 Isometric view of the assembly structure of the central cable delivery assembly.

[0027] in:

[0028] 11-Support plate; 111-Guide hole;

[0029] 12- Rope splicing assembly; 121- Rope inlet seat; 122- Rope inlet pulley;

[0030] 13-Rope feeding assembly; 131-Base; 1311-Positioning hole; 132-Rotating frame; 1321-Side guard plate; 1322-Rope exit pin; 1323-Limiting rod; 1324-Limiting gap; 1325-Process hole; 133-Rope exit pulley; 134-Rope guide cover; 1341-Rope guide hole;

[0031] 21-Roos. Detailed Implementation

[0032] The core of this utility model is to provide a flexible cable guiding device, which can optimize the guiding support and stress distribution during the operation of the flexible cable, prevent the flexible cable from breaking and reduce the structural wear of the flexible cable and pulley, thereby improving the safety of flexible cable-related operations and reducing equipment maintenance costs.

[0033] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] It should be noted in advance that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing" in this utility model should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] Furthermore, in this invention, unless otherwise explicitly specified and limited, the first feature being "on" or "below" the second feature may include direct contact between the first and second features, or contact between the first and second features not being in direct contact but through another feature between them.

[0036] In addition, the terms "above," "over," and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicating that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "under," and "beneath" for the first feature and the second feature include the first feature being directly below or diagonally below the second feature, or simply indicating that the first feature is at a lower horizontal level than the second feature. The terms "above," "below," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0037] In specific implementations, such as Figure 1 , Figure 2 as well as Figure 3 As shown, the flexible rope guiding device provided by this utility model includes a horizontally extending support plate 11, a guide hole 111 penetrating through the middle of the support plate 11 in the vertical direction, a rope receiving assembly 12 corresponding to and adapted to the guide hole 111 on the bottom surface of the support plate 11, and a rope feeding assembly 13 corresponding to and adapted to the guide hole 111 on the top surface of the support plate 11.

[0038] The rope receiving assembly 12 includes a rope inlet seat 121 fixedly disposed on the bottom surface of the support plate 11. A rope inlet pulley 122 adapted to be wound around the flexible rope 21 is hinged on the rope inlet seat 121. The rotation axis of the rope inlet pulley 122 extends in the horizontal direction, and the rope inlet pulley 122 is aligned and arranged below the guide hole 111.

[0039] The rope feeding assembly 13 includes a base 131 fixedly mounted on the top surface of the support plate 11. A rotating frame 132 is hinged on the base 131 for the flexible rope 21 to pass through and can rotate around a vertical axis. A rope output pulley 133 adapted to be wound around the flexible rope 21 is fixedly hinged at the middle of the rotating frame 132. The rotation axis of the rope output pulley 133 extends in the horizontal direction. The middle of the base 131 has a positioning hole 1311 aligned and connected above the guide hole 111 for the flexible rope 21 to pass through. The positioning hole 1311 is coaxial with the guide hole 111. The rope output pulley 133 is aligned and arranged above the positioning hole 1311.

[0040] During specific equipment operation, the flexible cable guide device is reliably arranged at the appropriate work position of the corresponding lifting equipment or high-altitude operation equipment, and the support plate 11 is reliably installed and fixed, so as to use the support plate 11 as the positioning assembly and support structure foundation of each component of the flexible cable guide device.

[0041] When the equipment is in operation, the flexible cable 21 is introduced from below the inlet pulley 122 and wound around the pulley groove of the inlet pulley 122. After being guided by the inlet pulley 122, the flexible cable 21 continues to pass upward through the guide hole 111 and the positioning hole 1311 in sequence. Then, the flexible cable 21 is wound around the pulley groove of the outlet pulley 133. Finally, the flexible cable 21 is led out from the side of the outlet pulley 133 by the guide of the outlet pulley 133, so that the lead-out end of the flexible cable 21 can be reliably connected to the downstream hoisting object or terminal operation device, while ensuring that the other end of the flexible cable 21, that is, the force-applying end, is reliably connected to the hoisting equipment or high-altitude operation power equipment.

[0042] During the corresponding operation of the flexible cable 21, when the lead-out end of the flexible cable 21 needs to be adjusted in position or twisted synchronously with the hoisted object or the corresponding terminal operation device, the flexible cable 21 transmits the force to the lead-out pulley 133 through contact with the lead-out pulley 133, and then transmits the force synchronously to the slewing frame 132 through the lead-out pulley 133, so that the slewing frame 132 rotates synchronously with the main structure of the flexible cable 21, ensuring that the lead-out end of the flexible cable 21 and its main structure complete reliable deflection adjustment. During this period, the main structure of the middle part of the flexible cable 21 is always within the guide hole 111 and the positioning hole 1311. Therefore, the matching positions of the flexible cable 21 with the rope inlet pulley 122 and the rope outlet pulley 133 can be kept constant, and the flexible cable 21 and the various pulleys and other mating parts can always maintain rolling fit. This effectively avoids the occurrence of local stress concentration caused by the twisting of the flexible cable 21 or the change of the working direction, and thus avoids the wear of the flexible cable 21 and the main structure of the pulleys caused by local stress concentration. This effectively eliminates the risk of the flexible cable 21 breaking, greatly extends the service life of the flexible cable 21, improves the safety and stability of related operations, and reduces the overall maintenance cost of the corresponding hoisting and other operating equipment.

[0043] It is easy to understand that, considering the specific needs of the actual working environment in practical applications, there may be two or more flexible cables 21 on the same flexible cable guiding device. Therefore, in practical applications, there may be two or more guide holes 111 on the support plate 11. Correspondingly, there may also be two or more rope-connecting assemblies 12 and rope-feeding assemblies 13 that are adapted to each guide hole 111, so as to ensure the equipment operation requirements under different working conditions. Generally, each guide hole 111 can be arranged in an array along the main extension surface of the support plate 11, that is, the extension direction of the horizontal plane, and the spacing between two adjacent guide holes 111 can meet the assembly and arrangement requirements of the matching rope-connecting assembly 12 and rope-feeding assembly 13, so as to ensure the full adaptation and assembly of each flexible cable 21 and its corresponding guide hole 111, rope-connecting assembly 12, and rope-feeding assembly 13.

[0044] Furthermore, it should be noted that the diameters of the guide holes 111 and the positioning holes 1311 are both larger than the outer diameter of the flexible cable 21, in order to avoid frequent friction between the outer wall of the flexible cable 21 and the inner walls of each guide hole 111 and positioning hole 1311. This further prevents damage and breakage of the flexible cable 21, ensures the service life and working condition tolerance of the flexible cable 21, and makes the corresponding lifting and other operations safer and more reliable.

[0045] Please refer to the reference. Figure 4 As shown.

[0046] Specifically, the slewing frame 132 includes a slewing platform rotatably mounted on a base 131 and two side guard plates 1321 vertically arranged on the top of the slewing platform. The two side guard plates 1321 are arranged in parallel and are fitted with a clearance. The slewing frame 132 also includes a rope outlet pin 1322 horizontally arranged between the two side guard plates 1321. The two ends of the rope outlet pin 1322 are respectively fixed to the middle of the two side guard plates 1321. The rope outlet pulley 133 is rotatably mounted coaxially on the rope outlet pin 1322.

[0047] The two side guard plates 1321 provide reliable structural support and positioning foundation for the rope exit pin 1322, and provide reliable side structural protection for the rope exit pulley 133 located between the two side guard plates 1321. At the same time, the vertical extension structure of the side guard plates 1321 itself can provide a moderate lateral limiting structure extension for the pulley groove of the rope exit pulley 133, so as to prevent the flexible rope 21 from coming out of the pulley groove of the rope exit pulley 133. This further ensures the stability of the assembly structure of the rope exit pulley 133 and the flexible rope 21, optimizes the matching transmission effect between the two, and further improves the guiding and supporting effect of the flexible rope guiding device on the flexible rope 21, making the corresponding equipment operation and work process more stable and efficient.

[0048] More specifically, the slewing frame 132 also includes a limiting rod 1323 horizontally arranged between the two side guard plates 1321. The two ends of the limiting rod 1323 are respectively fixed to the top of the bright side guard plate 1321. The axis of the limiting rod 1323 is parallel to that of the rope exit pin 1322, and the limiting rod 1323 is clearance-fitted with the rope exit pulley 133 to form a limiting gap 1324 for the flexible rope 21 to pass through. The limiting gap 1324 provides sufficient space for the flexible rope 21 to smoothly pass through the main structure of the slewing frame 132. Based on this, the top arrangement structure of the rope exit pin 1322 can form a top limit on the flexible rope 21 wound on the rope exit pulley 133, further preventing the flexible rope 21 from coming off the top of the rope exit pulley 133, ensuring the reliable assembly and stable operation of the flexible rope 21, and thereby further preventing the flexible rope 21 from being worn or even broken due to excessive twisting or deflection caused by loosening or misalignment, thus further improving the safety of related operations of the flexible rope 21 and ensuring the stable and safe operation of related equipment.

[0049] In actual assembly applications, the tangent of the bottom arc surface of the pulley groove at the rope-receiving end of the rope-exiting pulley 133 is collinear with the axis of the positioning hole 1311. This ensures that the rope-exiting pulley 133 supports the flexible rope 21 while allowing the flexible rope 21, led out through the positioning hole 1311, to be wound more precisely and smoothly onto the rope-exiting pulley 133. This effectively guarantees the alignment accuracy of the flexible rope 21 with the positioning hole 1311 and the rope-exiting pulley 133, further preventing structural interference and friction between the flexible rope 21 and the hole wall of the positioning hole 1311 and the pulley groove of the rope-exiting pulley 133, thus eliminating wear and breakage of the flexible rope 21.

[0050] Correspondingly, the tangent of the bottom arc surface of the pulley groove at the rope-connecting end of the rope-feeding pulley 122 is collinear with the axis of the positioning hole 1311. Similar to the alignment arrangement between the rope-discharging pulley 133 and the positioning hole 1311 mentioned above, the alignment and adaptation structure between the rope-feeding pulley 122 and the positioning hole 1311 can ensure that the rope-feeding pulley 122 supports the flexible rope 21 while allowing the flexible rope 21 led out through the rope-feeding pulley 122 to pass through the positioning hole 1311 more accurately and smoothly. This effectively ensures the alignment accuracy between the flexible rope 21 and the positioning hole 1311, further avoiding structural interference and friction between the flexible rope 21 and the hole wall of the positioning hole 1311, and preventing wear and breakage of the flexible rope 21.

[0051] On the other hand, the rope feeding assembly 13 also includes a rope guide cover 134 disposed above the base 131. The rope guide cover 134 and the base 131 are aligned and fastened together in the vertical direction to form a rotating cavity between the inner wall of the rope guide cover 134 and the base 131. The side guard plate 1321, the rope exit pin 1322, and the rope exit pulley 133 are all located in the rotating cavity. The side wall of the rope guide cover 134 has a rope guide hole 1341 that communicates with the rotating cavity for the flexible rope 21 to pass through. The rope guide cover 134 can be reliably aligned and fastened together with the base 131 to provide reliable structural protection for the main support components and moving components such as the side guard plate 1321 and the rope exit pulley 133 located in the rotating cavity. This prevents external equipment and environmental impurities from interfering with or causing other adverse effects on the operation of the core moving components such as the rope exit pulley 133, ensuring the stable rotation of the rope exit pulley 133 and the reliable installation and arrangement of components such as the side guard plate 1321.

[0052] Furthermore, the rope hole 1341 can provide appropriate structural restraint and guidance for the flexible rope 21 to ensure the extension and tracking of the flexible rope 21 after it is led out by the rope pulley 133, thereby ensuring the alignment accuracy and connection reliability of the flexible rope 21 with the downstream hoisting object or other end-operating device, and ensuring the reliable installation and stable operation of the flexible rope guiding device and its supporting operating equipment.

[0053] Generally, the rope guide hole 1341 is an oblong hole with its long axis extending vertically. Of course, the rope guide hole 1341 can also be a through-slot structure with a closed top but an open bottom. In short, the rope guide hole 1341 should have a long axis extending vertically to provide reliable lateral restraint for the flexible cable 21 by utilizing its relatively narrow short axis space extending horizontally. This ensures the tracking performance of the flexible cable 21 when it passes through the rope guide hole 1341 and avoids structural interference with the vertical direction, which is the main working direction of the flexible cable 21, during lifting and other operations, thus ensuring the smooth movement and reliable operation of the flexible cable 21.

[0054] In addition, the side guard plate 1321 has a process hole 1325 in the middle. As shown in the figure, the process hole 1325 can be a single quadrilateral hole structure of a large size arranged in the middle of the side guard plate 1321, so that the side guard plate 1321 forms a trapezoidal or other polygonal frame structure as shown in the figure, thereby further reducing the self-weight of the side guard plate 1321 and making the overall structure of the slewing frame 132 lighter. This makes the movement of the slewing frame 132 more flexible and smooth when rotating synchronously with the flexible cable 21, thereby further improving the working efficiency of the flexible cable guiding device and further avoiding the occurrence of local stress concentration during the change of direction and torsion of the flexible cable 21, thereby reducing the non-working wear of the flexible cable 21 and reducing the risk of breakage of the flexible cable 21.

[0055] Furthermore, the inner walls of the pulley grooves of the inlet pulley 122 and the outlet pulley 133 are coated with ceramic protective layers. These ceramic protective layers further improve the wear resistance and high-temperature resistance of the inlet pulley 122 and the outlet pulley 133, thereby optimizing the contact and rolling fit between each pulley and the flexible cable 21, improving the working condition tolerance of the inlet pulley 122 and the outlet pulley 133, making each pulley more durable, and thus further reducing the overall maintenance and operating costs of the equipment.

[0056] In summary, the flexible cable guiding device provided in this utility model, during operation, reliably arranges itself at the appropriate work position of the corresponding lifting equipment or aerial work platform, ensuring the reliable installation and fixation of the support plate. The support plate serves as the positioning, assembly, and support structure foundation for the various components of the flexible cable guiding device. During operation, the flexible cable is introduced from below the inlet pulley and wound around its groove. Guided by the inlet pulley, the cable continues upward through the guide hole and positioning hole, then wound around the outlet pulley's groove. Finally, guided by the outlet pulley, the cable is led out from the side of the outlet pulley, reliably connecting the cable's lead-out end to the downstream lifting object or terminal work device. Simultaneously, the other end of the cable, i.e., the force-applying end, is reliably connected to the lifting equipment or aerial work platform. During the implementation of corresponding flexible cable operations, when the lead-out end of the flexible cable needs to be adjusted in position or twisted synchronously with the lifted object or the corresponding terminal operation device, the flexible cable transmits the force to the lead-out pulley through contact with it. The lead-out pulley then transmits the force synchronously to the slewing frame, causing the slewing frame to rotate synchronously with the main structure of the flexible cable. This ensures that the lead-out end of the flexible cable and its main structure complete reliable deflection adjustments. During this period, the main structure in the middle of the flexible cable remains within the guide hole and positioning hole, thus ensuring that the matching positions of the flexible cable with the lead-in and lead-out pulleys remain constant. This also ensures that the flexible cable and its mating parts, such as the pulleys, maintain rolling fit, effectively preventing localized stress concentration caused by cable twisting or changes in the working direction. This avoids wear on the flexible cable and pulley main structure caused by localized stress concentration, effectively eliminating the risk of flexible cable breakage, significantly extending the service life of the flexible cable, improving the safety and stability of related operations, and correspondingly reducing the overall maintenance costs of the corresponding lifting and other operation equipment.

[0057] The flexible cable guiding device provided by this utility model has been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A flexible cable guiding device, characterized in that, The system includes a horizontally extending support plate, a guide hole penetrating through the middle of the support plate in a vertical direction, a rope receiving assembly that corresponds to and matches the guide hole on the bottom surface of the support plate, and a rope feeding assembly that corresponds to and matches the guide hole on the top surface of the support plate. The rope receiving assembly includes a rope inlet seat fixedly disposed on the bottom surface of the support plate. A rope inlet pulley adapted to the winding of the flexible rope is hinged to the rope inlet seat. The rotation axis of the rope inlet pulley extends in the horizontal direction, and the rope inlet pulley is arranged below the guide hole. The rope feeding assembly includes a base fixedly mounted on the top surface of the support plate. A rotating frame for the flexible rope to pass through and capable of rotating about a vertical axis is hinged to the base. A rope output pulley adapted to the winding of the flexible rope is fixedly hinged to the middle of the rotating frame. The rotation axis of the rope output pulley extends horizontally. The middle of the base has a positioning hole aligned and connected above the guide hole for the flexible rope to pass through. The positioning hole is coaxial with the guide hole. The rope output pulley is aligned and arranged above the positioning hole.

2. The cable guide of claim 1, wherein, The rotary frame includes a rotary table rotatably mounted on the base and two side guard plates vertically arranged on the top of the rotary table. The two side guard plates are arranged in parallel and are fitted with a clearance. The slewing frame also includes a rope outlet pin arranged horizontally between the two side guard plates. The two ends of the rope outlet pin are respectively fixed to the middle of the two side guard plates. The rope outlet pulley is coaxially sleeved on the rope outlet pin and can rotate around a fixed axis.

3. The cable guide of claim 2, wherein, The slewing frame also includes a limiting top rod horizontally arranged between the two side guard plates. The two ends of the limiting top rod are respectively fixed to the top of the side guard plate. The axis of the limiting top rod is parallel to that of the rope outlet pin, and the limiting top rod is clearance-fitted with the rope outlet pulley to form a limiting gap for the flexible rope to pass through.

4. The flexible cable guiding device as described in claim 3, characterized in that, The tangent of the bottom arc surface of the pulley groove at the rope-connecting end of the rope-discharging pulley is collinear with the axis of the positioning hole.

5. The flexible cable guiding device as described in claim 2, characterized in that, The rope feeding assembly also includes a rope guide cover disposed above the base. The rope guide cover is aligned and fastened to the base in a vertical direction to form a rotating cavity between the inner wall of the rope guide cover and the base. The side guard plate, the rope exit pin, and the rope exit pulley are all located in the rotating cavity. The side wall of the rope guide cover has a rope guide hole that communicates with the rotating cavity for the flexible rope to pass through.

6. The flexible cable guiding device as described in claim 5, characterized in that, The rope hole is a waist-shaped hole with its long axis extending vertically.

7. The flexible cable guiding device as described in claim 2, characterized in that, The side guard plate has a process hole in the middle.

8. The flexible cable guiding device as described in claim 1, characterized in that, The tangent of the bottom arc surface of the pulley groove at the rope-connecting end of the rope-feeding pulley is collinear with the axis of the positioning hole.

9. The flexible cable guiding device as described in claim 1, characterized in that, The inner walls of the pulley grooves of the rope inlet pulley and the rope outlet pulley are respectively coated with ceramic protective layers.

10. The flexible cable guiding device as claimed in claim 1, characterized in that, There are at least two guide holes, and each guide hole is arranged in an array along the horizontal direction on the support plate.

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