Automatic crane unhooking device

Abstract

The utility model discloses a kind of crane automatic unhooking devices, including pulley assembly and rotating seat, the lower portion of pulley assembly is provided with rotating seat, driving motor is installed on the inner wall of rotating seat, the output end of driving motor is installed with worm, and worm is movably connected with rotating seat, rotating shaft is movably installed in the inside of rotating seat in worm side, and rotating shaft extends to the outside of rotating seat and is connected with pulley assembly, the surface of rotating shaft is equipped with worm wheel, and worm wheel and worm are mutually engaged, the bottom end of rotating seat is installed with bearing plate, the bottom end of bearing plate is installed with three groups of bearing frame of equal interval, servo motor is installed on the inner wall of bearing frame all. The utility model not only realizes the angle of convenient rotation adjustment goods and automatic unhooking, facilitates the accurate loading and unloading of goods, and improves the convenience of automatic unhooking and the accuracy of goods conveying.

Description

TECHNICAL FIELD

[0001] The utility model relates to automatic unhooking device technical field, concretely is a crane automatic unhooking device. BACKGROUND

[0002] The crane hook, also known as a lifting hook, is a key component of a crane, mainly used for lifting goods and heavy objects. The crane hook is usually a U-shaped metal hook installed on the trunnion of the crane, capable of bearing heavy loads and ensuring the safe movement and positioning of goods. It is widely used in various industrial fields, such as construction sites and shipbuilding. On construction sites, the crane hook is often used to lift large components such as concrete blocks and steel. In shipbuilding, larger and stronger crane hooks are needed to handle the lifting of ship parts. During the daily lifting of goods, the crane hook often cannot be unhooked, causing the goods to be damaged by impact. To improve this situation, a crane automatic unhooking device is proposed.

[0003] As disclosed in the authorized announcement No. CN221440120U, a crane automatic unhooking device includes a hook, an activity slot is formed in the middle lower end of the left side of the hook, a protective cover is fixedly connected to the top end of the activity slot, a fixed motor is fixedly connected inside the protective cover, a first rotating shaft is fixedly connected to the driving end of the fixed motor, the first rotating shaft is rotatably connected inside the activity slot, a baffle is fixedly connected to the middle outer side of the first rotating shaft, a rotating mechanism is provided on the right side of the middle upper end of the hook, a third rotating shaft is fixedly connected to the adjacent side of the middle upper end of the two clamping plates;

[0004] Although it realizes the cooperation of the activity slot, the first rotating shaft, and the baffle, which can effectively ensure the safety of the operator and improve the efficiency of the operation. By the cooperation of the second rotating shaft, the clamping groove, the clamping plate, and the fixed block, the hook can be prevented from rotating randomly and causing the goods to fall.

[0005] However, it does not solve the problem of the existing automatic unhooking device, which is not convenient for rotating and adjusting the angle of the goods and automatic unhooking, and is not conducive to precise loading and unloading of goods, affecting the convenience of automatic unhooking and the precision of goods transportation. UTILITY MODEL CONTENTS

[0006] The utility model aims to provide a crane automatic unhooking device to solve the problem of the automatic unhooking device in the background technology, which is not convenient for rotating and adjusting the angle of the goods and automatic unhooking, and is not conducive to precise loading and unloading of goods, affecting the convenience of automatic unhooking and the precision of goods transportation.

[0007] To achieve the above object, the utility model provides following technical scheme: a crane automatic unhooking device, including pulley assembly and rotating seat, the lower portion of pulley assembly is provided with rotating seat, the inner wall of rotating seat is installed with drive motor, the output of drive motor is installed with worm, and worm is movably connected with rotating seat, the inside of rotating seat of one side of worm is movably installed with rotating shaft, and rotating shaft extends to the outside of rotating seat and is connected with pulley assembly, the surface of rotating shaft is equipped with worm wheel, and worm wheel is meshed with worm.

[0008] Preferably, the inner wall of the bearing frame is installed with a servo motor, the output end of the servo motor is installed with a transmission shaft, and the surface of the transmission shaft is sleeved with a transmission gear.

[0009] Preferably, the inside of the bearing frame of one side of the transmission shaft is movably installed with a central shaft, the surface of the central shaft is sleeved with a driven gear, and the driven gear is meshed with the transmission gear.

[0010] Preferably, the inside of the bearing frame below the central shaft is movably installed with a hinged shaft, the surface of the hinged shaft is sleeved with a meshing gear, and the meshing gear is meshed with the driven gear.

[0011] Preferably, the bottom end of the meshing gear is installed with a hook body, and the side wall of the hook body is movably installed with a hydraulic cylinder.

[0012] Preferably, the output end of the hydraulic cylinder is installed with a push rod, and the end of the push rod away from the hydraulic cylinder is installed with a connecting rod.

[0013] Preferably, the end of the connecting rod close to the push rod is installed with a linkage shaft, and the connecting rod is movably connected with the push rod through the linkage shaft.

[0014] Preferably, the end of the connecting rod away from the linkage shaft is installed with a closing rod, the end of the closing rod close to the connecting rod is installed with a connecting shaft, the closing rod is movably connected with the connecting rod through the closing rod, and the closing rod is movably connected with the hook body through the connecting shaft.

[0015] Compared with the prior art, the automatic unhooking device not only realizes convenient rotation adjustment of the angle of the goods and automatic unhooking, facilitates precise loading and unloading of the goods, and improves the convenience of automatic unhooking and the precision of goods conveying.

[0016] (1) by the goods hanging on the hook body, using the crane through the pulley assembly drive goods move, when the goods in the landing, in order to adjust its landing angle, by the drive motor driven worm rotation, by the worm through the worm drive rotating shaft rotation, wherein the pulley assembly is fixed, by rotating shaft driven rotating seat rotation, by rotating seat driven bearing frame, hook body and goods rotation, to rotate the angle of goods, so as to accurately unload goods, realize the convenient rotation adjustment of the angle of goods, facilitate the accurate loading and unloading of goods;

[0017] (2) by when the goods landing, by hydraulic cylinder driven push rod movement, by push rod through the linkage shaft driven link rotation, by link through the connecting shaft driven closed rod rotation, to open the closed rod, by servo motor through the transmission shaft driven transmission gear rotation, by transmission gear driven driven gear with center shaft as the shaft rotation, by driven gear driven meshing gear with hinge shaft as the shaft rotation, by meshing gear driven hook body do counterclockwise rotation, so as to separate the hook body from the rope, to complete the automatic unhooking operation, realize the convenient automatic unhooking, improve the convenience of unhooking. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is the three-dimensional structure schematic diagram of the utility model;

[0019] Figure 2 is the front view structure schematic diagram of the utility model;

[0020] Figure 3 is the side view section structure schematic diagram of the rotating seat of the utility model;

[0021] Figure 4 is the three-dimensional perspective structure schematic diagram of the bearing frame of the utility model;

[0022] Figure 5 is the three-dimensional structure schematic diagram of the hook body of the utility model.

[0023] In the drawing: 1, pulley assembly; 2, bearing plate; 3, bearing frame; 4, hook body; 5, rotating seat; 6, rotating shaft; 7, drive motor; 8, worm; 9, worm gear; 10, servo motor; 11, transmission gear; 12, transmission shaft; 13, driven gear; 14, center shaft; 15, meshing gear; 16, hinge shaft; 17, hydraulic cylinder; 18, push rod; 19, linkage shaft; 20, connecting shaft; 21, closed rod; 22, link. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of protection of the utility model.

[0025] Please refer to Figures 1-5 The utility model provides an embodiment: a kind of crane automatic unhooking device, pulley assembly 1 is provided with rotating seat 5 below, driving motor 7 is installed on the inner wall of rotating seat 5, driving motor 7 plays the role of power drive, the output end of driving motor 7 is installed with worm 8, and worm 8 is movably connected with rotating seat 5, rotating shaft 6 is movably installed in the inside of rotating seat 5 on the side of worm 8, and rotating shaft 6 extends to the outside of rotating seat 5 and is connected with pulley assembly 1, worm gear 9 is sleeved on the surface of rotating shaft 6, and worm gear 9 is meshed with worm 8, bearing plate 2 is installed at the bottom of rotating seat 5, and three groups of bearing frame 3 of equal interval are installed at the bottom of bearing plate 2;

[0026] Hang goods on hook body 4, use crane to drive goods to move by pulley assembly 1, when goods are landing, in order to accurately adjust its landing angle, driving motor 7 can be opened at this time, worm 8 is rotated by driving motor 7, rotating shaft 6 is rotated by worm 8 through worm gear 9, wherein pulley assembly 1 is fixed, rotating seat 5 is rotated by rotating shaft 6, bearing frame 3, hook body 4 and goods are rotated by rotating seat 5, to rotate and adjust the angle of goods, to accurately unload goods, the angle of goods is conveniently rotated and adjusted, and the accurate loading and unloading of goods are facilitated;

[0027] Servo motor 10 is installed on the inner wall of bearing frame 3, and servo motor 10 plays the role of power drive, transmission shaft 12 is installed at the output end of servo motor 10, and transmission gear 11 is sleeved on the surface of transmission shaft 12.

[0028] Center shaft 14 is movably installed in the inside of bearing frame 3 on the side of transmission shaft 12, driven gear 13 is sleeved on the surface of center shaft 14, and driven gear 13 is meshed with transmission gear 11, hinged shaft 16 is movably installed in the inside of bearing frame 3 below center shaft 14, meshing gear 15 is sleeved on the surface of hinged shaft 16, and meshing gear 15 is meshed with driven gear 13.

[0029] Hook body 4 is installed at the bottom end of meshing gear 15, hydraulic cylinder 17 is movably installed on the side wall of hook body 4, and hydraulic cylinder 17 plays the role of power drive, push rod 18 is installed at the output end of hydraulic cylinder 17, and connecting rod 22 is installed at the end, away from hydraulic cylinder 17, of push rod 18.

[0030] The linkage 22 is installed with a linkage shaft 19 near one end of the push rod 18, and the linkage 22 is movably connected with the push rod 18 through the linkage shaft 19;

[0031] The linkage 22 is installed with a closing rod 21 far from the linkage shaft 19, and the closing rod 21 is installed with a connecting shaft 20 near one end of the linkage 22, and the closing rod 21 is movably connected with the linkage 22 through the closing rod 21, and the closing rod 21 is movably connected with the hook body 4 through the connecting shaft 20;

[0032] When the goods land, the hydraulic cylinder 17 is opened, the push rod 18 is driven to move by the hydraulic cylinder 17, the linkage 22 is driven to rotate by the push rod 18 through the linkage shaft 19, the closing rod 21 is driven to rotate by the linkage 22 through the connecting shaft 20, the closing rod 21 is opened, then the servo motor 10 is opened, the transmission gear 11 is driven to rotate by the servo motor 10 through the transmission shaft 12, the driven gear 13 is driven to rotate around the central shaft 14 by the transmission gear 11, the meshing gear 15 is driven to rotate around the hinged shaft 16 by the driven gear 13, the hook body 4 is driven to rotate counterclockwise by the meshing gear 15, so as to separate the hook body 4 from the rope, and complete the automatic unhooking operation, realize the convenient automatic unhooking, and improve the convenience of unhooking.

[0033] Working principle: the goods are hung on the hook body 4, the crane is used to drive the goods to move through the pulley assembly 1, when the goods land, in order to accurately adjust the landing angle, the driving motor 7 can be opened at this time, the worm 8 is driven to rotate by the driving motor 7, the rotating shaft 6 is driven to rotate by the worm 8 through the worm gear 9, the pulley assembly 1 is fixed, the rotating seat 5 is driven to rotate by the rotating shaft 6, the bearing frame 3, the hook body 4 and the goods are driven to rotate by the rotating seat 5, so as to rotate and adjust the angle of the goods, so as to accurately unload the goods, when the goods land, the hydraulic cylinder 17 is opened, the push rod 18 is driven to move by the hydraulic cylinder 17, the linkage 22 is driven to rotate by the push rod 18 through the linkage shaft 19, the closing rod 21 is driven to rotate by the linkage 22 through the connecting shaft 20, the closing rod 21 is opened, then the servo motor 10 is opened, the transmission gear 11 is driven to rotate by the servo motor 10 through the transmission shaft 12, the driven gear 13 is driven to rotate around the central shaft 14 by the transmission gear 11, the meshing gear 15 is driven to rotate around the hinged shaft 16 by the driven gear 13, the hook body 4 is driven to rotate counterclockwise by the meshing gear 15, so as to separate the hook body 4 from the rope, and complete the automatic unhooking operation, the above is the whole use of the crane automatic unhooking device.

Claims

1. A crane automatic unhooking device, comprising a pulley assembly (1) and a rotating seat (5), characterized in that: The lower part of the pulley assembly (1) is provided with a rotating seat (5), the inner wall of the rotating seat (5) is provided with a driving motor (7), the output end of the driving motor (7) is provided with a worm (8), and the worm (8) is movably connected with the rotating seat (5), the inside of the rotating seat (5) on one side of the worm (8) is movably provided with a rotating shaft (6), and the rotating shaft (6) extends to the outside of the rotating seat (5) and is connected with the pulley assembly (1), the surface of the rotating shaft (6) is provided with a worm wheel (9), and the worm wheel (9) is meshed with the worm (8), the bottom end of the rotating seat (5) is provided with a bearing plate (2), and the bottom end of the bearing plate (2) is provided with three groups of bearing frames (3) at equal intervals.

2. A crane automatic unhooking device according to claim 1, characterized in that: The inner wall of the bearing frame (3) is provided with a servo motor (10), the output end of the servo motor (10) is provided with a transmission shaft (12), and the surface of the transmission shaft (12) is provided with a transmission gear (11).

3. A crane automatic unhooking device according to claim 2, characterized in that: The inside of the bearing frame (3) on one side of the transmission shaft (12) is movably provided with a central shaft (14), the surface of the central shaft (14) is provided with a driven gear (13), and the driven gear (13) is meshed with the transmission gear (11).

4. A crane automatic unhooking device according to claim 3, characterized in that: The inside of the bearing frame (3) below the central shaft (14) is movably provided with a hinged shaft (16), the surface of the hinged shaft (16) is provided with an engagement gear (15), and the engagement gear (15) is meshed with the driven gear (13).

5. A crane automatic unhooking device according to claim 4, characterized in that: The bottom end of the engagement gear (15) is provided with a hook body (4), and the side wall of the hook body (4) is movably provided with a hydraulic cylinder (17).

6. A crane automatic unhooking device according to claim 5, characterized in that: The output end of the hydraulic cylinder (17) is provided with a push rod (18), and the end of the push rod (18) away from the hydraulic cylinder (17) is provided with a connecting rod (22).

7. A crane automatic unhooking device according to claim 6, characterized in that: The end of the connecting rod (22) close to the push rod (18) is provided with a linkage shaft (19), and the connecting rod (22) is movably connected with the push rod (18) through the linkage shaft (19).

8. A crane automatic unhooking device according to claim 6, characterized in that: The end of the connecting rod (22) away from the linkage shaft (19) is provided with a closing rod (21), the end of the closing rod (21) close to the connecting rod (22) is provided with a connecting shaft (20), the closing rod (21) is movably connected with the connecting rod (22) through the closing rod (21), and the closing rod (21) is movably connected with the hook body (4) through the connecting shaft (20).

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