An electric lifting device for pole-mounted heavy objects

Abstract

This invention discloses an electric lifting device for pole-mounted heavy objects, comprising a housing with a rope winding reel inside and a control motor outside the housing. The output end of the control motor passes through the housing and engages with the rope winding reel. A connecting cover plate for connecting to an external hook is provided at the rear end of the housing. A rope feeding mechanism is provided on one side of the housing, including a guide wheel, a conveying wheel, and a limit wheel. The guide wheel has a built-in drive motor that can maintain the same linear speed as the rope winding reel. Compared with the prior art, the advantages of this invention are: the rope feeding mechanism straightens the rope, effectively preventing the load from swinging and rotating; integrated sensors monitor rope wear in real time, and an audible and visual alarm is triggered when wear exceeds the standard, significantly improving operational safety; it has adaptive adjustment and dustproof cleaning functions, reducing wear and malfunctions and extending service life; and its modular structure supports multi-angle rope feeding, adapting to different working environments.

Description

Technical Field

[0001] This invention relates to the field of lifting equipment technology, and in particular to an electric lifting device for heavy objects working on poles. Background Technology

[0002] Hoists are widely used as safety ropes and climbing assistance power for high-altitude work robots. In material suspension transportation applications, they have advantages such as flexible installation and no reliance on permanent tracks.

[0003] In actual use, for electric rope lifters, the rope is its lifeline, as well as the most vulnerable and continuously worn component. The equipment involves multiple rollers, guides, and clamping mechanisms. The rope needs to interact with more components, and the damage points and damage methods are more diverse. In actual use, it is necessary to conduct advance inspection and maintenance, and replace ropes with high wear in a timely manner.

[0004] During transportation, materials that need to be stacked are hoisted and transported. The ropes are driven by the hoist. However, the existing hoists do not have a rope straightening mechanism, which makes the ropes prone to twisting and other abnormal states. This, combined with the internal toothed rope reel, can cause the materials to rotate during the subsequent suspension process, increasing the overall safety hazard. In addition, because the ropes and the hoist body are stored separately for easy transportation, dirt and other contaminants can easily adhere to the ropes during use, accumulating inside the hoist and causing subsequent jamming. Summary of the Invention

[0005] This invention addresses the problems of ropes in electric lifting devices easily twisting, affecting the stability of material hoisting, and the adhesion of dirt to ropes during transportation. This invention provides an electric lifting device for heavy objects on poles.

[0006] The technical solution adopted by the present invention to solve the above-mentioned technical problems is: an electric lifting device for pole-mounted heavy objects, including a housing;

[0007] The machine housing is equipped with a rope winding reel inside and a control motor is equipped on the outside of the machine housing. The output end of the control motor passes through the machine housing and is engaged with the rope winding reel. A connecting cover plate for connecting an external hook is provided at the rear end of the machine housing.

[0008] The device features a rope feeding mechanism on one side of the housing, comprising a guide wheel, a conveying wheel, and a limiting wheel. The guide wheel has a built-in drive motor that maintains the same linear speed as the rope winding reel. A movable rope guide block is located at the top of the housing. One side of the rope guide block is connected to a conveying mechanism consisting of a guide tube and a connecting ring. The connecting ring contains a pressure-sensitive sensor that provides feedback on rope wear. The rope guide block contains an audible and visual alarm connected to the pressure-sensitive sensor's wires. This device straightens the rope through the rope feeding mechanism, effectively preventing the suspended load from swinging or rotating. The integrated pressure-sensitive sensor monitors rope wear in real time, triggering an immediate audible and visual alarm when wear exceeds the limit, significantly improving operational safety. It also features adaptive adjustment and dustproof cleaning functions, reducing wear and malfunctions and extending service life. The modular structure supports multi-angle rope feeding.

[0009] A further preferred embodiment of the present invention is as follows: a positioning plate is provided on the outside of the guide rope block, a plurality of positioning pins are inserted on the positioning plate, a plurality of positioning grooves are opened on the outer arc surface of the guide rope block, and a positioning rod is locked inside the positioning groove to lock the rope feeding angle.

[0010] The top of the connecting ring is provided with a limiting ring frame, and the limiting ring frame is provided with several fixing rods, which are locked in the connecting holes at the top of the connecting ring. A rubber ring is locked inside the limiting ring frame, and the rubber ring is attached to the surface of the rope for conveying dust prevention. Together with the replaceable rubber ring inside the limiting ring frame, it effectively prevents dust and dirt from entering the machine body, reduces internal mechanism jamming and wear, and improves the durability and reliability of the device in harsh environments.

[0011] A further preferred embodiment of the present invention is as follows: a set of conveying grooves is provided on the connecting ring, and a snap-fit ​​block for connecting the transmission plate is snapped inside the conveying groove; an adjusting frame is inserted outside the connecting ring; a set of fixing rods is installed on the adjusting frame, and the fixing rods are inserted into one end of the snap-fit ​​block; a return spring is provided between the snap-fit ​​block and the adjusting frame to allow for a certain amount of movement; and the position of the transmission plate is adjusted according to the diameter of the rope.

[0012] A guide plate is connected to the inner wall of the transmission plate. The guide plate is arc-shaped and has several balls inside. The guide block and transmission plate can be flexibly adjusted according to the rope diameter so that the pressing plate and the movable balls are always in contact with the rope surface, which reduces friction while ensuring monitoring accuracy.

[0013] A further preferred embodiment of the present invention is as follows: the connecting ring is provided with several slots, and a drive shaft is movably engaged inside the slots. The drive shafts are symmetrically arranged in pairs at the bottom of the drive plate. A retaining pin is provided at the top of the drive shaft, and the retaining pin is engaged inside the docking slots on both sides of the drive plate. The drive plate can move to drive the bottom drive shaft to move inside the slots for adjustment according to the diameter of the rope. The guide rope block can flexibly adjust the rope feeding angle through the positioning pin and the positioning slot to adapt to different installation scenarios and hoisting directions. The limit ring frame, drive plate and other components adopt a detachable design for easy quick replacement and maintenance.

[0014] The bottom of the drive shaft is connected to a hollow shaft, and the pressure sensor is installed inside the hollow shaft. An elastic clamping plate is provided outside the hollow shaft, and a set of elastic shafts is provided at the rear end of the clamping plate. The elastic shafts abut against the sensitive grid of the pressure sensor. The pressure sensor can detect the wear of the rope surface in real time.

[0015] A further preferred embodiment of the present invention is as follows: a plurality of semi-circular grooves are formed on the surface of the clamping plate, and movable ball bearings are engaged inside the semi-circular grooves for pressing against the surface of the rope. The gap between the clamping plates is smaller than the gap of the guide plate inside the transmission plate, for pressing the clamping plate against the surface of the rope to provide feedback on the amount of wear.

[0016] A further preferred embodiment of the present invention is as follows: a reset frame is provided at the bottom of the guide wheel, and a transmission groove is provided on the inner wall of the housing. The reset frame is locked inside the transmission groove, and a set of telescopic rods is provided inside the transmission groove. The telescopic rods are connected to the bottom of the reset frame. A transmission wheel plate is connected to the outer wall on both sides of the guide wheel. The transmission wheel plate abuts against the top of the reset frame. The reset frame reciprocates with the guide wheel, which can continuously clean the rope during operation and straighten it during the reciprocating motion, reducing the impact of rope twisting on the normal operation of the hoist.

[0017] A further preferred embodiment of the present invention is as follows: the reset frame is provided with a rope threading frame, and straight grooves are provided on both sides of the rope threading frame. A cleaning shaft is clamped between the corresponding straight grooves. Several inclined plastic rings are provided on the cleaning shaft. The outer ends of the cleaning shafts on both sides are connected to the snap-fit ​​pieces, which are connected to the outside of the rope threading frame to control the spacing of the cleaning shafts. The rope threading frame with cleaning shafts and the eccentric ring groove and dust collection groove on the conveyor wheel are provided in the rope feeding path. The surface attachments can be actively removed before the rope enters the winding wheel. The inclined plastic rings can continuously clean the surface of the rope and reduce the situation of debris residue on the surface of the rope.

[0018] A further preferred embodiment of the present invention is as follows: a roller is provided on the conveyor wheel, and an eccentric annular groove is provided on the roller. Several evenly distributed dust collection grooves are provided inside the eccentric annular groove. An adhesive layer is provided inside the dust collection groove to further collect residual debris, prevent dirt accumulation from affecting the operation of the equipment, and also reduce equipment malfunctions and jams caused by dirt and debris entering the equipment.

[0019] A further preferred embodiment of the present invention is as follows: several transmission rods are provided inside both ends of the limiting wheel, and docking rings are connected to the transmission rods on both sides. The docking rings are symmetrically arranged on both sides of the limiting wheel. The adjustable transmission rods on the limiting wheel ensure that the rope enters the rope reel in a straight state, which significantly reduces the risk of cargo swinging or rotating due to rope torsion and reset after hoisting, and ensures the stability and safety of high-altitude operations.

[0020] A further preferred embodiment of the present invention is as follows: the housing is provided with a clamping wheel located at the bottom of the rope feeding mechanism. The clamping wheel is located on the outside of the rope winding reel and is used to prevent rope slippage and to ensure the stability of the equipment operation. The outer side of the rope winding reel is provided with an annular groove for locking several limiting spikes. The side of the housing near the connecting cover plate is provided with a heat dissipation groove, and a mesh disk is connected to the outside of the heat dissipation groove to reduce the situation of excessively high internal operating temperature.

[0021] Compared with the prior art, the advantages of the present invention are as follows:

[0022] 1. This invention utilizes the coordinated action of the guide wheel, conveying wheel, and limiting wheel in the rope feeding mechanism to continuously stretch and straighten the rope, effectively reducing local twisting or bending of the rope. Combined with the adjustable transmission rod on the limiting wheel, it ensures the rope enters the winding reel in a straight state, significantly reducing the risk of cargo swaying or rotating due to rope torsion and resetting after hoisting. This ensures the stability and safety of high-altitude operations. Furthermore, the guide block allows for flexible adjustment of the rope feeding angle through positioning pins and positioning slots, adapting to different installation scenarios and hoisting directions.

[0023] 2. This invention integrates a pressure-sensitive sensor within the connecting ring of the guide rope block, which can detect the wear condition of the rope surface in real time. When the wear exceeds a preset threshold or the data from each sensor differs too much, the system automatically triggers an audible and visual alarm to remind the operator to check or replace the rope in time, effectively avoiding the risk of breakage caused by excessive rope wear.

[0024] 3. The present invention can flexibly adjust the guide block and transmission plate according to the rope diameter, so that the pressure plate and the movable ball are always in contact with the rope surface, which reduces friction and ensures monitoring accuracy. In conjunction with the replaceable rubber ring in the limit ring frame, it effectively prevents dust and dirt from entering the machine body, reduces internal mechanism jamming and wear, and improves the durability and reliability of the device in harsh environments.

[0025] 4. This invention, by setting a rope threading frame with a cleaning shaft in the rope feeding path and an eccentric ring groove and dust collection groove on the conveyor wheel, can actively remove surface deposits before the rope enters the winding wheel. The inclined plastic ring and adhesive layer further collect residual debris, preventing dirt accumulation from affecting the operation of the equipment. This not only maintains the cleanliness of the machine body, but also reduces the probability of mechanical failure caused by impurities. Attached Figure Description

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be regarded as a limitation on the scope of the present invention. In addition, unless specifically indicated, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated displays, and the drawings are not necessarily drawn to scale.

[0027] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the rear end structure of the housing of the present invention;

[0029] Figure 3 This is a schematic diagram of the disassembled structure of the connecting cover plate of the present invention;

[0030] Figure 4 This is a schematic diagram of the exploded disassembly structure inside the casing of the present invention;

[0031] Figure 5 For the present invention Figure 4 Enlarged view of a portion of point A in the middle;

[0032] Figure 6 This is a schematic diagram of the conveyor wheel structure of the present invention;

[0033] Figure 7 This is a partial structural diagram of the limiting wheel of the present invention;

[0034] Figure 8 This is a schematic diagram of the explosive disassembly structure of the guide rope block of the present invention;

[0035] Figure 9 For the present invention Figure 8 A magnified schematic diagram of the structure at point B in the middle;

[0036] Figure 10 This is a partial structural diagram of the connecting ring of the present invention;

[0037] Figure 11 This is a schematic diagram of the magnetic sensor structure of the present invention;

[0038] Figure 12 This is a schematic diagram of the monitoring process of the pressure-sensitive sensor of the present invention.

[0039] In the diagram: 1. Housing; 2. Guide wheel; 3. Conveyor wheel; 4. Limit wheel; 5. Rope guide block; 11. Control motor; 12. Connecting cover plate; 13. Grid disc; 14. Rope winding disc; 15. Pressing wheel; 16. Transmission groove; 21. Transmission wheel plate; 22. Reset frame; 23. Rope threading frame; 24. Cleaning shaft; 31. Eccentric ring groove; 32. Dust collection trough; 41. Transmission rod; 42. Connecting ring; 51. Guide tube; 511. Connecting ring; 52. Limiting ring frame; 53. Rubber ring; 54. Transmission shaft; 55. Hollow shaft; 551. Pressing plate; 56. Pressure sensor; 57. Adjusting frame; 58. Transmission plate; 581. Snap-fit ​​block; 582. Guide pressure plate; 59. Positioning plate; 510. Magnetic sensor; 5101. Contact end block. Detailed Implementation

[0040] Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0041] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

[0042] This is Example 1: Please refer to... Figures 1-10 Specifically, it is as follows: an electric lifting device for pole-mounted heavy objects, including a housing 1;

[0043] The machine housing 1 has a rope winding reel 14 inside and a control motor 11 outside. The output end of the control motor 11 passes through the machine housing 1 and is engaged with the rope winding reel 14. The rear end of the machine housing 1 is provided with a connecting cover plate 12 for connecting to an external hook.

[0044] The housing 1 has a rope feeding mechanism on one side, which includes a guide wheel 2, a conveying wheel 3, and a limit wheel 4. The guide wheel 2 has a built-in drive motor that can maintain the same linear speed as the rope winding reel 14. The top of the housing 1 has a movable rope guide block 5. One side of the rope guide block 5 is connected to a conveying mechanism consisting of a guide tube 51 and a connecting ring 511. The connecting ring 511 has a pressure-sensitive sensor 56 that provides feedback on rope wear. The rope guide block 5 has an audible and visual alarm that is wired to the pressure-sensitive sensor 56. During use, the rope can be installed inside the hoist. As the rope feeds, it can be stretched and straightened with the help of the rope feeding mechanism to reduce local twisting of the rope during the feeding process. This minimizes the risk of the goods swinging or rotating after the rope is stretched and reset during the subsequent suspension process. During transport, the pressure-sensitive sensor 56 provides feedback. When the local wear of the rope exceeds a preset amount, the audible and visual alarm is activated in time, allowing operators to promptly inspect and clean the rope, avoiding any omissions during early inspection and maintenance.

[0045] like Figure 4 and Figure 8 As shown, a positioning plate 59 is provided on the outer side of the guide rope block 5. Several positioning pins are inserted on the positioning plate 59. Several sets of positioning grooves are opened on the outer arc surface of the guide rope block 5, and the positioning rod is locked in the positioning groove to lock the rope feeding angle. During use, the rope is led out from the guide rope block 5, and the connecting cover plate 12 at the rear end can be connected to the hook. With the pre-installed pulleys, etc., goods can be lifted, which is convenient for short-distance indoor lifting and transportation. Since it is easy to disassemble and install in real time, the rope feeding angle at the front end is inconsistent. The transmission angle of the guide rope block 5 can be adjusted to reduce the wear on the surface of the rope during the transportation process.

[0046] A limiting ring frame 52 is provided at the top of the connecting ring 511. The limiting ring frame 52 is provided with several fixing rods, which are locked in the connecting holes at the top of the connecting ring 511. A rubber ring 53 is locked inside the limiting ring frame 52. The rubber ring 53 is attached to the surface of the rope for dust prevention during transport. The rubber ring 53 can be replaced according to the size of the rope to fit the outer wall of the rope. It can prevent dust and dirt from adhering to the surface of the rope during subsequent retrieval, reducing the possibility of dust and dirt entering the hoist and causing blockage. The limiting ring frame 52 can be easily disassembled and maintained, allowing for regular maintenance and cleaning of the internal transmission plate 58 and transmission shaft 54. This reduces the impact of dirt adhering to the internal parts on the normal operation of the pressure sensor 56 after long-term use, and reduces the possibility of misjudgment.

[0047] like Figure 9 and Figure 10As shown, a set of conveying grooves is provided on the connecting ring 511, and a snap-fit ​​block 581 for connecting the transmission plate 58 is snapped inside the conveying groove. An adjusting frame 57 is inserted outside the connecting ring 511. A set of fixing rods is installed on the adjusting frame 57, and the fixing rods are inserted into one end of the snap-fit ​​block 581. A return spring is provided between the snap-fit ​​block 581 and the adjusting frame 57 to allow for a certain amount of movement. The position of the transmission plate 58 is adjusted according to the rope diameter. In actual use, after the rope passes through the connecting ring 511, the position of the adjusting frame 57 is adjusted so that the transmission plate 58 can be set on the outside of the rope for auxiliary limiting.

[0048] A guide plate 582 is connected to the inner wall of the transmission plate 58. The guide plate 582 is arc-shaped and has several balls inside. As the transmission plate 58 moves inward, the guide plate 582 can press against the edge of the rope. With the help of the balls, it can reduce friction and reduce the wear on the rope at the conveying port.

[0049] like Figure 8 and Figure 9 As shown, the connecting ring 511 is provided with several slots, and the drive shaft 54 ​​is movably locked inside the slots. The drive shaft 54 ​​is symmetrically arranged in pairs at the bottom of the drive plate 58. The top of the drive shaft 54 ​​is provided with a locking shaft, and the locking shaft is locked inside the docking grooves on both sides of the drive plate 58. The drive plate 58 can move to drive the bottom drive shaft 54 ​​to move inside the slots for adjustment according to the diameter of the rope. When the top drive plate 58 is adjusted according to the size of the rope, the bottom drive shaft 54 ​​can be set on the surface of the rope with the cooperation of the drive plate 58 without additional adjustment.

[0050] A hollow shaft 55 is connected to the bottom of the drive shaft 54. The pressure sensor 56 is installed inside the hollow shaft 55. An elastic clamping plate 551 is provided on the outside of the hollow shaft 55. A set of elastic shafts is provided at the rear end of the clamping plate 551, and the elastic shafts abut against the sensitive grid of the pressure sensor 56. The clamping plate 551 can be lifted onto the surface of the rope. During the rope transportation process, the pressure sensor 56 is continuously output by means of the elastic shafts, which can play a monitoring role. When the pressure exceeds the normal preset amount or the difference between multiple pressure sensors 56 exceeds the preset amount, the audible and visual alarm can be activated, which can facilitate the operator to stop the machine in time and reduce the safety hazards during use.

[0051] like Figure 9As shown, the surface of the clamping plate 551 has several semi-circular grooves, and movable balls are locked inside the semi-circular grooves to abut against the surface of the rope. The gap between the clamping plates 551 is smaller than the gap of the guide plate 582 inside the transmission plate 58, which is used to press the clamping plates 551 against the surface of the rope to provide feedback on the amount of wear. In actual use, the clamping plates 551 can adhere to the surface of the rope during the conveying process. The feedback of the pressure sensor 56 fluctuates continuously within a certain value range, and the movable balls can abut against the surface of the rope, reducing local wear of the rope during the detection process. Moreover, the movable balls provide continuous and process-oriented feedback, which is more sensitive to local indentations or wear than direct contact with the clamping plates 551. The processor can monitor the feedback by using the value of the numerical change.

[0052] like Figure 4 and Figure 5 As shown, a reset frame 22 is provided at the bottom of the guide wheel 2. A transmission groove 16 is provided on the inner wall of the housing 1. The reset frame 22 is locked inside the transmission groove 16. A set of telescopic rods is provided inside the transmission groove 16, which can push the reset frame 22 to move upward. The telescopic rods are connected to the bottom of the reset frame 22. A transmission wheel plate 21 is connected to the outer walls on both sides of the guide wheel 2. The transmission wheel plate 21 abuts against the top of the reset frame 22. The reset frame 22 reciprocates with the guide wheel 2. When the rope passes through the guide wheel 2, it can continuously move the bottom reset frame 22 with the help of the outer transmission wheel plate 21. With the help of the rope threading frame 23, the rope can be continuously cleaned, reducing the situation of dust and debris residue. In addition, during the conveying process, the guide wheel 2 can work with the bottom conveying wheel 3 and the limit wheel 4 to stretch the rope, reducing the situation of local twisting or bending of the direct wire entry, and reducing the impact of subsequent hoisting.

[0053] like Figure 5 As shown, the reset frame 22 is equipped with a rope threading frame 23 inside. The rope threading frame 23 has straight grooves on both sides, and cleaning shafts 24 are clamped between the corresponding straight grooves. The cleaning shafts 24 are equipped with several inclined plastic rings. The outer ends of the cleaning shafts 24 on both sides are connected to the snap-fit ​​pieces, which are connected to the outside of the rope threading frame 23 to control the spacing of the cleaning shafts 24. During the continuous operation of the reset frame 22, the cleaning shafts 24 can press against the surface of the rope and follow the continuous reciprocating motion of the reset frame 22. With the help of the inclined plastic rings, the outside of the rope can be cleaned, reducing the entry of debris into the hoist.

[0054] like Figure 6As shown, the conveyor wheel 3 is equipped with a roller, and the roller has an eccentric annular groove 31. During the conveying process, the rope can be locked inside the eccentric annular groove 31, which can pull the rope to swing left and right during transportation, thus playing a role in assisting the stretching. Several evenly distributed dust collection grooves 32 are provided inside the eccentric annular groove 31. During the movement of the rope inside the eccentric annular groove 31, dirt and debris adhering to the surface remain inside the dust collection grooves 32, which plays a role in pretreatment. Furthermore, an adhesive layer can be provided inside the dust collection grooves 32 to further ensure the pretreatment effect and reduce the residual debris and dirt on the surface.

[0055] like Figure 7 As shown, several transmission rods 41 are provided inside both ends of the limiting wheel 4. Connecting rings 42 are connected to the transmission rods 41 on both sides. The connecting rings 42 are symmetrically arranged on both sides of the limiting wheel 4. The position of the transmission rods 41 can be adjusted according to the diameter of the rope so that they abut against the connecting rings 42. This can limit the feeding position of the rope, reduce the twisting and rotation during the feeding process, and reduce the accidental rotation of the transported material caused by the rope twisting and resetting after hoisting.

[0056] like Figure 2 and Figure 3 As shown, the housing 1 is provided with a clamping wheel 15 located at the bottom of the rope feeding mechanism. The clamping wheel 15 is located on the outside of the rope winding reel 14 to prevent rope slippage and ensure the stability of the overall operation. The outer side of the rope winding reel 14 is provided with annular grooves with several limiting spikes. The side of the housing 1 near the connecting cover plate 12 is provided with a heat dissipation groove, and a mesh disk 13 is connected to the outside of the heat dissipation groove to reduce the heat generated by continuous internal operation.

[0057] Example 2, as detailed below: Based on Example 1, this solution also makes the following optimizations and improvements, such as... Figure 11 As shown, the hollow shaft 55 with a pressure-sensitive sensor 56 at the bottom of the drive shaft is replaced with a magnetic sensor 510. The magnetic sensor 510 has a corresponding contact end block 5101 on its outside, and a friction pad is provided on the outside of the contact end block 5101 for contacting the rope. During operation, the core sensing element of the magnetic sensor 510 is non-contact with the pressure-sensitive diaphragm. The tiny displacement of the diaphragm is detected by the change in the magnetic field generated by a permanent magnet. There is no physical connection, so it is not sensitive to environmental factors such as vibration. It maintains high accuracy within a fixed range. In addition, the heat generated by friction during the direct transmission process is effectively reduced by temperature compensation technology, which is very mature in magnetic sensors. This effectively reduces the influence of temperature changes on the magnetism and maintains the stability of the detection.

[0058] Example 3, specifically as follows: Based on Examples 1 and 2 above, this solution also makes the following optimizations and improvements, such as... Figure 12As shown, the health condition of the rope is indirectly determined by real-time monitoring of minute changes in the rope diameter, i.e., the amount of wear, and is divided into two states;

[0059] When the rope wears uniformly, its diameter will decrease as a whole, causing changes in the pressure received by the friction pad on the outside of the clamping plate 551 or the contact end block 5101. When this pressure value exceeds a certain safety threshold, it is judged that the wear exceeds the standard.

[0060] Local wear, flattening, or internal damage to the rope can cause uneven pressure distribution at different locations within the connecting ring 511. In this case, the pressure received by the symmetrically arranged pressure sensor 56 or magnetic sensor 510 will show significant differences. When this difference exceeds the allowable range, it is judged as abnormal.

[0061] If either of the above two judgment conditions is met, the system processor will immediately connect the circuit of the audible and visual alarm inside the guide rope block 5, which facilitates subsequent emergency stop maintenance and reduces safety hazards during operation.

[0062] The specific operating steps are as follows:

[0063] S1: Power on the pressure monitoring system to start system operation;

[0064] S2: Initialize and calibrate multiple pressure sensors, and set pressure threshold and pressure difference threshold parameters;

[0065] S3: Enters a periodic working cycle, collecting monitoring data from each pressure sensor in real time. The time interval of the periodic working cycle is configurable to adapt to the real-time requirements of different application scenarios.

[0066] S4: Preprocess and filter the collected pressure data;

[0067] S5: Determine whether the pressure value of any sensor exceeds the preset single sensor pressure threshold;

[0068] S6: Simultaneously determine whether the pressure difference between any number of sensors exceeds a preset pressure difference threshold;

[0069] S7: When any of the conditions in step S5 or S6 is met, the audible and visual alarm device is triggered to issue a warning signal.

[0070] S8: The system has entered a shutdown state and is awaiting manual intervention;

[0071] S9: System diagnostics and maintenance are performed by maintenance personnel, and the system is restarted after maintenance is completed.

[0072] In the description of this invention, it should be noted that the terms "upper," "lower," "front," "rear," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this invention is usually placed when in use. They are only for the convenience of describing this invention 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. Therefore, they should not be construed as limiting this invention.

[0073] The present invention has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only for the purpose of helping to understand the present invention and its core ideas. It should be noted that for those skilled in the art, several improvements and modifications can be made to the present invention without departing from the principles of the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A power operated lifting device for a load on a pole, characterised in that, Include the shell; The inside of the shell is provided with a rope winding disc, the outside of the shell is provided with a control motor, the output end of the control motor penetrates the shell and is connected with the rope winding disc, and the rear end of the shell is provided with a connecting cover plate connected with an external lifting hook; Wherein, one side of the shell is provided with a rope feeding mechanism, the rope feeding mechanism comprises a guide wheel, a conveying wheel and a limiting wheel, the guide wheel is provided with a built-in drive motor, which can maintain the same linear speed as the rope winding disc, the top of the shell is provided with a movable rope guide block, one side of the rope guide block is connected with a conveying mechanism composed of a guide pipe and a connecting ring, the inside of the connecting ring is provided with a pressure sensitive sensor for feeding the rope loss, and the inside of the rope guide block is provided with an audible and visual alarm connected with the pressure sensitive sensor. The outer side of the rope guide block is provided with a positioning plate, a plurality of positioning pins are inserted in the positioning plate, a plurality of groups of positioning grooves are formed in the outer arc surface of the rope guide block, and the positioning pins are clamped in the positioning grooves for locking the rope feeding angle. The top of the connecting ring is provided with a limiting ring frame, a plurality of fixed pins are arranged on the limiting ring frame, the fixed pins are clamped in the connecting holes in the top of the connecting ring, a rubber ring is clamped in the limiting ring frame, the rubber ring is attached to the surface of the rope for dustproof conveying. A group of conveying grooves are arranged on the connecting ring, a clamping block of a connecting transmission plate is clamped in the conveying grooves, an adjusting frame is inserted on the outside of the connecting ring, a group of fixed rods are installed on the adjusting frame, the fixed rods are inserted into one end of the clamping block, a reset spring is arranged between the clamping block and the adjusting frame for leaving a movable allowance, and the position of the transmission plate is adjusted according to the diameter of the rope. The inner wall of the transmission plate is connected with a guide pressing plate, the guide pressing plate is arc-shaped and clamped with a plurality of balls inside.

2. A power operated lifting device for a work load on a pole according to claim 1 characterised in that, A plurality of clamping grooves are arranged on the connecting ring, a transmission shaft is movably clamped in the clamping grooves, the transmission shafts are symmetrically arranged at the bottom of the transmission plate, a clamping shaft is arranged at the top of the transmission shaft, the clamping shaft is clamped in the butt joint grooves on both sides of the transmission plate, the transmission plate can drive the bottom transmission shaft to move in the clamping groove for adjusting according to the diameter of the rope. The bottom of the transmission shaft is connected with a hollow shaft, the pressure sensitive sensor is clamped in the hollow shaft, the hollow shaft is provided with an elastic pressing plate outside, a group of elastic shafts are arranged at the rear end of the pressing plate, and the elastic shafts abut against the sensitive grid of the pressure sensitive sensor.

3. A power operated lifting device for a work load on a pole according to claim 2, characterised in that, A plurality of semicircular grooves are formed in the surface of the pressing plate, and movable balls are clamped in the semicircular grooves for abutting against the surface of the rope, the gap between the pressing plates is smaller than the gap between the guide pressing plates arranged in the transmission plate, and the pressing plates are attached to the surface of the rope to feedback the wear amount.

4. A power lift for a work load on a pole as defined in claim 1, wherein The bottom of the guide wheel is provided with a reset frame, the inner wall of the shell is provided with a conducting groove, the reset frame is clamped in the conducting groove, a group of telescopic rods are arranged in the conducting groove, the telescopic rods are connected to the bottom of the reset frame, the outer walls on both sides of the guide wheel are connected with transmission wheel plates, the transmission wheel plates abut against the top of the reset frame, and the reset frame moves back and forth with the guide wheel.

5. A power operated lifting device for a work load on a pole according to claim 4 wherein, The resetting frame is internally provided with a string threading frame, straight grooves are formed on both sides of the string threading frame, and a cleaning shaft is clamped between the corresponding straight grooves, a plurality of plastic rings are arranged on the cleaning shaft in an inclined manner, clamping pieces are connected to the outer ends of the cleaning shafts on both sides, and the clamping pieces are connected to the outer side of the string threading frame for controlling the spacing of the cleaning shafts.

6. A power lift for a work load on a pole as defined in claim 1, wherein The conveying wheel is provided with a roller shaft, an eccentric ring groove is formed in the roller shaft, and a plurality of uniformly distributed dust collecting grooves are arranged in the eccentric ring groove.

7. A power lift for a work load on a pole as defined in claim 1, wherein A plurality of transmission rods are arranged in the limiting wheels at both ends, and a butt joint ring is connected to the transmission rods on both sides, and the butt joint rings are symmetrically arranged on both sides of the limiting wheels.

8. A power lift for a work load on a pole as defined in claim 1, wherein The machine shell is provided with a pressing wheel at the bottom of the string feeding mechanism, the pressing wheel is arranged on the outer side of the winding wheel disc for preventing the string from falling off, the outer side of the winding wheel disc is provided with an annular groove clamped with a plurality of limiting spikes, one side of the machine shell close to the connecting cover plate is provided with a heat dissipation groove, and the outer side of the heat dissipation groove is connected with a mesh disc.

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