A hoist failure detection device

Abstract

The application discloses a hoist winch fault detection device and relates to the technical field of fault detection, which comprises a support chassis. When the servo motor fails during use, the heavy object rapidly descends with the steel wire rope, the steel wire rope drives the winding roller to rapidly rotate, the winding roller drives the driving gear to rapidly rotate, the annular gear ring drives the planetary gear and the sun gear to rapidly rotate, and the tooth defect gear is driven to rapidly rotate. At this time, the rotation speed sensor senses that the rotation speed of the tooth defect gear is abnormally accelerated, and the signal is transmitted to the controller. The hydraulic rod is started and controlled through the controller, the hydraulic rod drives the pushing block to move forward, the pushing block drives the sliding rod to move forward along the horizontal direction of the movable groove when moving, the locking block moves upward until being engaged with the corresponding locking groove, the locking disc is rapidly locked and stopped, and rapid self-locking is realized.

Description

Technical Field

[0001] This invention relates to the field of fault detection technology, specifically to a fault detection device for hoisting winches. Background Technology

[0002] A winch is a small, lightweight lifting device that uses a drum to wind a steel wire rope or chain to lift or pull heavy objects. Also known as a winch, a winch can lift vertically, pull horizontally or at an angle, and can be used alone or as a component in lifting, road construction, and mine hoisting machinery. It is widely used because of its simple operation, large rope capacity, and easy relocation.

[0003] In the prior art, such as Chinese Patent Publication No. CN215756104U, a winch, an emergency braking system, and a winch drum fault detection device are disclosed. This winch drum fault detection device includes a detector and a measuring point for installation on the flange of the winch drum; the signal transceiver of the detector is adjacent to the measuring point. Because the rotational motion of the measuring point has the same motion characteristics as the rotational motion of the winch drum and its flange, this winch drum fault detection device uses the detector to obtain the signal frequency of the measuring point during rotational motion. By judging whether the rotational motion of the measuring point conforms to the motion law of the winch drum during normal operation, it can determine whether the movement of the winch drum is normal. This is further used to determine whether there are structural faults such as broken shafts in the gearbox transmission system driving the winch drum, so that automatic or manual braking can be implemented when a structural fault occurs to avoid accidents.

[0004] However, in the existing technology, winches may malfunction during operation. For example, the motor may be damaged and out of control during rotation, which will cause the winch to be unable to operate normally. When the winch is out of control during the lifting process, the heavy object may suddenly fall downwards, which may easily cause the lifted heavy object to fall and be damaged. If the construction workers are below the heavy object, they may be injured by the falling object, which will have an adverse impact on production and construction and the safety of construction workers.

[0005] Therefore, we propose a fault detection device for hoisting winches to solve the problems mentioned above. Summary of the Invention

[0006] The purpose of this invention is to provide a hoisting winch fault detection device to solve the problem mentioned in the background art, where when a hoist malfunctions and runs out of control, heavy objects may suddenly fall downwards, easily causing damage to the hoisted objects. Construction workers who are below the heavy objects may be injured by the falling objects, thus adversely affecting production and construction and the safety of construction workers.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a hoisting winch fault detection device, comprising: a support base frame, wherein a winch body assembly is fixedly installed at the bottom of the support base frame; a control assembly, wherein the control assembly includes a protective box, wherein a partition plate is fixedly installed between the inner walls of the protective box, and a speed sensor is installed inside the protective box; and a self-locking assembly, wherein the self-locking assembly includes a locking disc, wherein a movable chamber is formed on the outer surface of the locking disc, a plurality of locking grooves are formed on the inner wall of the movable chamber, a locking block is movably connected to the inner wall of the movable chamber, a locking rod is fixedly connected to one end of the locking block, a fixed shaft is fixedly installed on one side of the locking rod near the bottom, a connecting rod is rotatably sleeved on the outer surface of the fixed shaft, a sliding rod is fixedly installed on one side of the connecting rod, a pushing block is rotatably sleeved on one end of the sliding rod, an anti-detachment block is fixedly installed on one end of the sliding rod, and an installation auxiliary plate is fixedly installed on the top of the support base frame, wherein a hydraulic rod is provided on the outer surface of the installation auxiliary plate, and one end of the hydraulic rod is fixedly connected to the outer surface of the pushing block.

[0008] Preferably, a stop block is fixedly connected to one end of the fixed shaft, a fixed rod is slidably sleeved on the outer surface of the locking rod, the bottom end of the fixed rod is fixedly connected to the top of the support base, a fixed platform is fixedly connected to the top of the support base, a movable groove is opened on the outer surface of the fixed platform, and the inner wall of the movable groove is movably connected to the outer surface of the slide rod. The slide rod drives the connecting rod to move. Since the fixed rod restricts the direction of movement of the locking rod, the connecting rod will push the locking rod upward.

[0009] Preferably, the protective box is fixedly installed on the top of the support base frame. The top of the protective box is equipped with an audible and visual alarm, and the top of the partition plate is equipped with a controller. The audible and visual alarm detects the alarm signal emitted when the servo motor fails and goes out of control, reminding the construction personnel to deal with the fault in time, avoid more serious losses, and effectively ensure the normal operation of the winch. The controller controls the start hydraulic rod.

[0010] Preferably, a data acquisition device is installed on one side of the inner bottom surface of the protective box, and a signal converter is installed on the other side of the inner bottom surface of the protective box. The front surface of the protective box is connected to a protective door via a hinge. The data acquisition device collects abnormal signals detected by the speed sensor and transmits the data to the signal converter. The signal converter processes the data detected by the speed sensor to determine whether the servo motor has malfunctioned.

[0011] Preferably, the winch body assembly includes two fixed frames, each with a positioning hole on its outer surface. A positioning shaft is rotatably connected to the inner wall of each positioning hole, and a side baffle is welded to one end of each positioning shaft. The fixed frames support the positioning shaft, allowing it to rotate stably inside the positioning hole. The distance between the winding roller and the support base allows for more wire rope to be wound on the winding roller.

[0012] Preferably, a take-up roller is welded between the two side baffles, and two limiting rings are fixedly sleeved on the outer surfaces of the two positioning shafts. One end of one of the positioning shafts is welded with a drive gear. Through the blocking effect of the two side baffles, the wire rope can be effectively prevented from detaching from both ends when it is wound on the take-up roller, and the wire rope can be guaranteed to always be on the surface of the take-up roller without slipping during operation.

[0013] Preferably, a drive assembly is fixedly installed on the top of the support base. The drive assembly includes a servo motor, and the output shaft of the servo motor is fixedly installed with a sun shaft. By starting the servo motor, the output shaft of the servo motor rotates, thereby driving the sun shaft to rotate.

[0014] Preferably, a sun gear is fixedly connected to one end of the sun shaft, and three planet gears are meshed on the outer surface of the sun gear. A ring gear is meshed between the outer surfaces of the three planet gears, and the outer surface of the ring gear meshes with the outer surface of the drive gear. The sun shaft drives the sun gear to rotate. When the sun gear rotates, its outer surface meshes with the outer surfaces of the planet gears, causing the planet gears to rotate. At the same time, since the outer surface of the planet gears on another side meshes with the inner ring teeth of the ring gear, the ring gear rotates around the sun gear under the driving force of the planet gears' rotation. The ring gear meshes with the drive gear to make it rotate, thereby realizing the lifting operation of the wire rope.

[0015] Preferably, a fixing block is fixedly connected to one side of the sun gear, and a stop block is fixedly connected to one side of the fixing block. Limit blocks are welded to one side of each of the three planet gears, and I-beams are welded to one side of each of the three limit blocks. Due to the characteristic of the I-beams being wide at both ends and narrow in the middle, each I-beam rotates in place when rotating in the corresponding rotating hole. The limit blocks can simultaneously block the ring gear and one planet gear, while the stop blocks the other side of the ring gear and planet gear, which has the advantage of preventing the meshing and disengagement between the planet gears, sun gear, and ring gear.

[0016] Preferably, a support plate is fixedly connected to the top of the support base. A movable hole is opened on one side of the support plate near the center. Three rotating holes are opened on one side of the support plate near the edge. The inner walls of the three rotating holes are rotatably connected to the outer surfaces of the three I-beams respectively. A toothed gear is fixedly fitted on the outer surface of the sun shaft. Through the missing tooth part of the toothed gear, the speed sensor can sense the number of rotations of the toothed gear.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. During use, when the servo motor malfunctions, the heavy object descends rapidly with the wire rope. The wire rope drives the winding roller to rotate rapidly, which in turn drives the drive gear to rotate rapidly. This causes the ring gear to drive the planetary gears and sun gear to rotate rapidly, which in turn drives the toothed gear to rotate rapidly. At this time, the speed sensor detects that the speed of the toothed gear is abnormally fast and transmits the signal to the controller. The controller then controls the start of the hydraulic rod, which drives the push block forward. As the push block moves, it drives the slide bar forward along the horizontal direction of the movable groove, causing the locking block to move upward until it engages with the corresponding locking groove. This causes the locking disc to lock quickly and stop rotating, thus achieving rapid self-locking. This effectively prevents the heavy object from falling and being damaged, and also prevents construction workers from being injured by falling heavy objects, reducing safety hazards.

[0019] 2. During use, the audible and visual alarm will detect the alarm signal issued when the servo motor fails or goes out of control, reminding construction personnel to deal with the fault in time to avoid more serious losses and effectively ensure the normal operation of the winch. The controller controls the start hydraulic rod, and the data acquisition device collects the abnormal signal monitored by the speed sensor and transmits the data to the signal converter. The signal converter processes the data monitored by the speed sensor to determine whether the servo motor has failed.

[0020] 3. During use, the servo motor is started, causing its output shaft to rotate, which in turn drives the sun shaft to rotate. The sun shaft then drives the sun gear to rotate. When the sun gear rotates, its outer surface meshes with the outer surface of the planet gears, causing the planet gears to rotate. Simultaneously, the ring gear rotates around the sun gear. The ring gear meshes with the drive gear, causing it to rotate, thus achieving the lifting operation of the wire rope. The limit block can simultaneously block the ring gear and one planet gear. The limit block can also block the other side of the ring gear and planet gear, which has the advantage of preventing the meshing between the planet gear, sun gear, and ring gear from disengaging. The missing tooth part of the toothed gear allows the speed sensor to sense the number of revolutions of the toothed gear. Attached Figure Description

[0021] Figure 1 This is a front perspective view of a hoisting winch fault detection device according to the present invention;

[0022] Figure 2 This is a rear perspective view of a hoisting winch fault detection device according to the present invention.

[0023] Figure 3 This is a perspective view of the structure of the winch body component of the hoisting winch fault detection device of the present invention;

[0024] Figure 4 This is a three-dimensional view of the drive assembly of a hoisting winch fault detection device according to the present invention.

[0025] Figure 5 This is a perspective view of the protective box portion of a hoisting winch fault detection device according to the present invention;

[0026] Figure 6 This is a perspective view of the control component of a hoisting winch fault detection device according to the present invention.

[0027] Figure 7 This is a side perspective view of the self-locking component of a hoisting winch fault detection device according to the present invention;

[0028] Figure 8 This is a perspective view of the self-locking component of a hoisting winch fault detection device according to the present invention, taken from another angle.

[0029] In the picture:

[0030] 1. Support frame; 2. Control components; 201. Protective box; 202. Speed ​​sensor; 203. Audible and visual alarm; 204. Protective door; 205. Partition plate; 206. Controller; 207. Signal converter; 208. Data acquisition unit; 3. Drive components; 301. Servo motor; 302. Gear with missing tooth; 303. Support plate; 304. Movable hole; 305. Rotary hole; 306. I-beam block; 307. Limit block; 308. Sun shaft; 309. Sun gear; 310. Planetary gears; 311. Ring gear; 312. Fixing block; 313. Stop block; 4. Winch body assembly; 401, fixed frame; 402, positioning hole; 403, take-up roller; 404, side baffle; 405, positioning shaft; 406, limit ring; 407, drive gear; 5, self-locking assembly; 501, mounting auxiliary plate; 502, hydraulic rod; 503, fixed platform; 504, push block; 505, anti-detachment block; 506, movable groove; 507, connecting rod; 508, locking disc; 509, slide bar; 510, fixed shaft; 511, blocking block; 512, fixed rod; 513, locking rod; 514, locking block; 515, movable chamber; 516, locking groove. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Please see Figure 1-8 This invention provides a technical solution: a hoisting winch fault detection device, comprising: a support base frame 1, with a winch body assembly 4 fixedly installed at the bottom of the support base frame 1; a control assembly 2, including a protective box 201, with partition plates 205 fixedly installed between the inner walls of the protective box 201, and a speed sensor 202 disposed inside the protective box 201; and a self-locking assembly 5, including a locking disc 508, with a movable chamber 515 formed on the outer surface of the locking disc 508, and multiple locking grooves 516 formed on the inner wall of the movable chamber 515, with locking devices movably connected to the inner wall of the movable chamber 515. Block 514, one end of the locking block 514 is fixedly connected to the locking rod 513, a fixed shaft 510 is fixedly installed on one side of the locking rod 513 near the bottom, a connecting rod 507 is rotatably sleeved on the outer surface of the fixed shaft 510, a sliding rod 509 is fixedly installed on one side of the connecting rod 507, a pushing block 504 is rotatably sleeved on one end of the sliding rod 509, an anti-detachment block 505 is fixedly installed on one end of the sliding rod 509, an installation auxiliary plate 501 is fixedly installed on the top of the support base 1, a hydraulic rod 502 is provided on the outer surface of the installation auxiliary plate 501, and one end of the hydraulic rod 502 is fixedly connected to the outer surface of the pushing block 504.

[0033] like Figure 1 , Figure 2 , Figure 7 and Figure 8 As shown, a stop block 511 is fixedly connected to one end of the fixed shaft 510. A fixed rod 512 is slidably sleeved on the outer surface of the locking rod 513. The bottom end of the fixed rod 512 is fixedly connected to the top of the support base 1. A fixed platform 503 is fixedly connected to the top of the support base 1. A movable groove 506 is opened on the outer surface of the fixed platform 503. The inner wall of the movable groove 506 is movably connected to the outer surface of the slide rod 509. The slide rod 509 drives the connecting rod 507 to move. Since the fixed rod 512 restricts the movement direction of the locking rod 513, the connecting rod 507 will push the locking rod 513 upward.

[0034] like Figure 1 , Figure 2 , Figure 5 and Figure 6As shown, the protective box 201 is fixedly installed on the top of the support base frame 1. The top of the protective box 201 is equipped with an audible and visual alarm 203, and the top of the partition plate 205 is equipped with a controller 206. The audible and visual alarm 203 detects the alarm signal issued when the servo motor 301 fails and goes out of control, reminding the construction personnel to deal with the fault in time, avoid more serious losses, and effectively ensure the normal operation of the winch. The controller 206 controls the start hydraulic rod 502.

[0035] like Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, a data acquisition unit 208 is installed on one side of the inner bottom surface of the protective box 201, and a signal converter 207 is installed on the other side of the inner bottom surface of the protective box 201. The front surface of the protective box 201 is connected to a protective door 204 via a hinge. The data acquisition unit 208 collects the abnormal signal detected by the speed sensor 202 and transmits the data to the signal converter 207. The signal converter 207 processes the data detected by the speed sensor 202 to determine whether the servo motor 301 has malfunctioned.

[0036] like Figure 1-3 As shown, the winch body assembly 4 includes two fixed frames 401. The outer surfaces of the two fixed frames 401 are provided with positioning holes 402. The inner walls of the two positioning holes 402 are rotatably connected to positioning shafts 405. The opposite ends of the two positioning shafts 405 are welded with side baffles 404. The fixed frames 401 support the positioning shafts 405, so that the positioning shafts 405 can rotate stably inside the positioning holes 402. The distance between the winding roller 403 and the support base frame 1 allows more wire rope to be wound on the winding roller 403.

[0037] like Figure 1-3 As shown, a take-up roller 403 is welded between the two side baffles 404. Two limiting rings 406 are fixedly sleeved on the outer surface of the two positioning shafts 405. One end of one of the positioning shafts 405 is welded with a drive gear 407. Through the blocking effect of the two side baffles 404, the wire rope can be effectively prevented from detaching from both ends when it is wound on the take-up roller 403, and the wire rope can be guaranteed to always stay on the surface of the take-up roller 403 without slipping during operation.

[0038] like Figure 1 , Figure 2 and Figure 4 As shown, a drive assembly 3 is fixedly installed on the top of the support frame 1. The drive assembly 3 includes a servo motor 301. The output shaft of the servo motor 301 is fixedly installed with a sun shaft 308. By starting the servo motor 301, the output shaft of the servo motor 301 rotates, thereby driving the sun shaft 308 to rotate.

[0039] like Figure 1 , Figure 2 and Figure 4 As shown, a sun gear 309 is fixedly connected to one end of the sun shaft 308. Three planet gears 310 are meshed on the outer surface of the sun gear 309. A ring gear 311 is meshed between the outer surfaces of the three planet gears 310. The outer surface of the ring gear 311 meshes with the outer surface of the drive gear 407. The sun shaft 308 drives the sun gear 309 to rotate. When the sun gear 309 rotates, its outer surface meshes with the outer surfaces of the planet gears 310, causing the planet gears 310 to rotate. At the same time, since the outer surface of the planet gears 310 on another side meshes with the inner ring teeth of the ring gear 311, the ring gear 311 rotates around the sun gear 309 under the driving force of the planet gears 310's rotation. The ring gear 311 meshes with the drive gear 407 to make it rotate, thereby realizing the lifting operation of the wire rope.

[0040] like Figure 1 , Figure 2 and Figure 4 As shown, a fixing block 312 is fixedly connected to one side of the sun gear 309, and a stop block 313 is fixedly connected to one side of the fixing block 312. A limit block 307 is welded to one side of each of the three planet gears 310, and an I-beam block 306 is welded to one side of each of the three limit blocks 307. Due to the characteristic that the I-beam block 306 is wide at both ends and narrow in the middle, each I-beam block 306 can rotate in place when rotating in the corresponding rotating hole 305. The limit block 307 can block the ring gear 311 and one planet gear 310 at the same time, and the stop block 313 can block the other side of the ring gear 311 and the planet gear 310, which has the advantage of preventing the meshing and disengagement between the planet gear 310, the sun gear 309 and the ring gear 311.

[0041] like Figure 1 , Figure 2 and Figure 4 As shown, a support plate 303 is fixedly connected to the top of the support base 1. A movable hole 304 is opened on one side of the support plate 303 near the center. Three rotating holes 305 are opened on one side of the support plate 303 near the edge. The inner walls of the three rotating holes 305 are rotatably connected to the outer surfaces of the three I-beams 306 respectively. A toothed gear 302 is fixedly sleeved on the outer surface of the sun shaft 308. Through the toothed part of the toothed gear 302, the speed sensor 202 can sense the number of revolutions of the toothed gear 302.

[0042] The device's operation and working principle are as follows: During use, activating the drive assembly 3 causes the outer ring teeth of the ring gear 311 in the drive assembly 3 to contact the drive gear 407. This meshing connection causes the drive gear 407 to rotate, which in turn drives the positioning shaft 405 and the winding roller 403 to rotate. This allows the winding roller 403 to slowly wind and release the wire rope during rotation. The two side baffles 404 effectively prevent the wire rope from detaching from both ends during winding on the winding roller 403, ensuring that the wire rope remains on the surface of the winding roller 403 without slipping. The fixing frame 401 supports the positioning shaft 405, ensuring its stable operation. Rotating inside the positioning hole 402, the take-up roller 403 has sufficient height from the support base 1, allowing more wire rope to be wound on it. By fixing each pair of limit rings 406 to both sides of a corresponding fixed frame 401, the positioning shaft 405 is prevented from shifting position during rotation. When the drive assembly 3 is running, the speed of the servo motor 301 can be reduced while increasing the output torque and adjusting the inertia. By starting the servo motor 301, its output shaft rotates, thereby driving the sun shaft 308 to rotate. This, in turn, causes the sun shaft 308 to drive the sun gear 309 to rotate simultaneously. As the sun gear 309 rotates, its outer surface meshes with the outer surface of the planet gear 310, causing the planet gear 310 to rotate. The planet gear 310 rotates on its own axis. Simultaneously, due to the meshing between the outer surface of the planet gear 310 and the inner ring teeth of the ring gear 311, the ring gear 311 rotates around the sun gear 309 under the driving force of the planet gear 310's rotation. During rotation, the I-beams 306, being wide at both ends and narrow in the middle, ensure that each I-beam 306 rotates in place within its corresponding rotating hole 305. The limiting block 307 simultaneously blocks the ring gear 311 and one planet gear 310, while the stop block 313 blocks the other side of the ring gear 311 and planet gear 310, thus preventing disengagement between the planet gear 310, sun gear 309, and ring gear 311. In this configuration, a gap is created between the stop block 313 and the ring gear 311 via the fixing block 312, preventing continuous friction between the stop block 313 and the ring gear 311 during rotation. Additionally, the sun shaft 308 passes through the rotating hole 305, and its rotation drives the toothed gear 302 to rotate. The speed sensor 202 detects whether the rotation speed of the toothed gear 302 is normal. The speed sensor 202, audible and visual alarm 203, controller 206, signal converter 207, and data acquisition unit 208 are electrically connected and all are electrically connected to an external power supply. When the servo motor 301 malfunctions, the load descends rapidly with the wire rope, causing the wire rope to drive the take-up roller 403 to rotate rapidly.The take-up roller 403 drives the drive gear 407 to rotate rapidly, which in turn causes the ring gear 311 to drive the planetary gear 310 and the sun gear 309 to rotate rapidly, thereby driving the toothed gear 302 to rotate rapidly. At this time, the speed sensor 202 senses the abnormally rapid speed of the toothed gear 302. The missing tooth of the toothed gear 302 is to enable the speed sensor 202 to sense the number of revolutions of the toothed gear 302. The data acquisition unit 208 collects the abnormal signal detected by the speed sensor 202 and transmits the data to the signal converter 207. The signal converter 207 processes the data detected by the speed sensor 202 to determine whether the servo motor 301 has malfunctioned, and transmits the result to the audible and visual alarm 203. The audible and visual alarm 203 issues an alarm signal when it detects that the servo motor 301 has malfunctioned and is out of control, reminding the construction personnel to deal with the fault in time and avoid more serious losses, effectively ensuring the normal operation of the winch. In addition, the signal converter 207 transmits the signal to the audible and visual alarm 203 at the same time. At the same time, the signal is also transmitted to the controller 206, which controls the activation of the hydraulic rod 502, causing the hydraulic rod 502 to extend, thereby driving the push block 504 forward. When the push block 504 moves, it drives the slide rod 509 forward along the horizontal direction of the movable groove 506. The slide rod 509 drives the connecting rod 507 to move. Since the fixed rod 512 restricts the movement direction of the locking rod 513, the connecting rod 507 will push the locking rod 513 upward, causing the locking block 514 to move upward until it is in contact with the corresponding... The locking groove 516 engages, causing the locking disc 508 to quickly lock and stop rotating, thus achieving rapid self-locking. This effectively prevents damage from falling heavy objects and also prevents construction workers from being injured by falling objects, reducing safety hazards. The speed sensor 202 is a CYT-9100, the audible and visual alarm 203 is an ND2 alarm light, the controller 206 is a PR10, the signal converter 207 is a DT-9020, and the data acquisition unit 208 is a VTN416.

[0043] The wiring diagrams for the speed sensor 202, audible and visual alarm 203, controller 206, signal converter 207, data acquisition unit 208, servo motor 301, and hydraulic rod 502 in this invention are common knowledge in the field, and their working principles are known technologies. The appropriate model is selected according to actual use. Therefore, the control methods and wiring layouts of the speed sensor 202, audible and visual alarm 203, controller 206, signal converter 207, data acquisition unit 208, servo motor 301, and hydraulic rod 502 will not be explained in detail.

[0044] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A fault detection device for hoisting winches, characterized in that, include: Support base frame (1), and a winch body assembly (4) is fixedly installed at the bottom of the support base frame (1). The control component (2) includes a protective box (201), a partition plate (205) is fixedly installed between the inner walls of the protective box (201), and a speed sensor (202) is provided inside the protective box (201). The self-locking assembly (5) includes a locking disc (508), the outer surface of which has a movable chamber (515), the inner wall of which has a plurality of locking grooves (516), a locking block (514) is movably connected to the inner wall of which, one end of which is fixedly connected to a locking rod (513), and a fixed shaft (510) is fixedly installed on one side of the locking rod (513) near the bottom. A connecting rod (507) is rotatably sleeved on the surface. A slide rod (509) is fixedly installed on one side of the connecting rod (507). A push block (504) is rotatably sleeved on one end of the slide rod (509). An anti-detachment block (505) is fixedly installed on one end of the slide rod (509). An installation auxiliary plate (501) is fixedly installed on the top of the support base (1). A hydraulic rod (502) is provided on the outer surface of the installation auxiliary plate (501). One end of the hydraulic rod (502) is fixedly connected to the outer surface of the push block (504). One end of the fixed shaft (510) is fixedly connected to a stop block (511), the outer surface of the locking rod (513) is slidably fitted with a fixed rod (512), the bottom end of the fixed rod (512) is fixedly connected to the top of the support base (1), the top of the support base (1) is fixedly connected to a fixed platform (503), the outer surface of the fixed platform (503) is provided with a movable groove (506), the inner wall of the movable groove (506) is movably connected to the outer surface of the slide rod (509), the protective box (201) is fixedly installed on the top of the support base (1), the top of the protective box (201) is provided with an audible and visual alarm (203), and the top of the partition plate (205) is provided with a controller (206). A data acquisition device (208) is provided on one side of the inner bottom surface of the protective box (201), and a signal converter (207) is provided on the other side of the inner bottom surface of the protective box (201). A protective door (204) is rotatably connected to the front surface of the protective box (201) via a hinge. The winch body assembly (4) includes two fixing frames (401). The outer surfaces of the two fixing frames (401) are provided with positioning holes (402). The inner walls of the two positioning holes (402) are rotatably connected with positioning shafts (405). Side baffles (404) are welded to the opposite ends of the two positioning shafts (405).

2. The hoisting winch fault detection device according to claim 1, characterized in that: A take-up roller (403) is welded between the two side baffles (404), and two limiting rings (406) are fixedly sleeved on the outer surfaces of the two positioning shafts (405). One end of one of the positioning shafts (405) is welded with a drive gear (407).

3. The hoisting winch fault detection device according to claim 2, characterized in that: The top of the support frame (1) is fixedly installed with a drive assembly (3), which includes a servo motor (301) and a sun axis (308) is fixedly installed on the output shaft of the servo motor (301).

4. The hoisting winch fault detection device according to claim 3, characterized in that: One end of the sun shaft (308) is fixedly connected to a sun gear (309), and the outer surface of the sun gear (309) is meshed with three planet gears (310). The outer surfaces of the three planet gears (310) are meshed with an annular gear ring (311), and the outer surface of the annular gear ring (311) is meshed with the outer surface of the drive gear (407).

5. The hoisting winch fault detection device according to claim 4, characterized in that: A fixing block (312) is fixedly connected to one side of the sun gear (309), a stop block (313) is fixedly connected to one side of the fixing block (312), a limit block (307) is welded to one side of each of the three planetary gears (310), and an I-beam block (306) is welded to one side of each of the three limit blocks (307).

6. The hoisting winch fault detection device according to claim 5, characterized in that: The top of the support base (1) is fixedly connected to a support plate (303). A movable hole (304) is opened on one side of the support plate (303) near the center. Three rotating holes (305) are opened on one side of the support plate (303) near the edge. The inner walls of the three rotating holes (305) are rotatably connected to the outer surfaces of the three I-beams (306). A toothed gear (302) is fixedly fitted on the outer surface of the sun shaft (308).

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