Automatic flange carrying equipment with anti-falling function

Abstract

The invention discloses automatic flange carrying equipment with an anti-falling function, and relates to the technical field of hoisting carrying equipment. The automatic flange carrying equipment comprises an engineering loading vehicle body, a main hanging bracket and a capstan unit, the main hanging bracket is installed on the engineering loading vehicle body, and the capstan unit is installed below the main hanging bracket; the winch unit is connected with a lifting appliance through a sling, an auxiliary supporting frame is rotationally installed on the main lifting frame, universal wheels are arranged at the bottom of the auxiliary supporting frame, a plurality of inner supporting plates are arranged in the lifting appliance and used for jacking, supporting and clamping a flange, and an anti-disengaging mechanism is further arranged in the lifting appliance. The anti-falling mechanism supports the bottom of the flange, the auxiliary supporting frame and the engineering loading vehicle body are located on the two sides of the flange, it is guaranteed that the overall gravity center is located in the middle of equipment, the auxiliary supporting frame is rotationally stored to the same side of the engineering loading vehicle body under the conditions that the equipment is prevented from toppling over and the equipment does not work, and the occupied space of the equipment is reduced; and the movement of the equipment is more flexible.

Description

Technical Field

[0001] The invention relates to the technical field of hoisting and handling equipment, in particular to automatic flange handling equipment with an anti-falling function. Background Art

[0002] Flange is also called flange flange. Generally, there are holes on the flange. Bolts can be used to tightly connect the two flanges. It is a part that connects shafts to each other. It is also used for connecting pipe ends or equipment inlets and outlets. Flange connection is a broad concept. Bolts are used to connect the two planes around. At the same time, closed connections are generally called flange connections. Therefore, flange is one of the most commonly used parts in the mechanical field.

[0003] The flange needs to be frequently moved during various processing or installation processes. In the prior art, mechanical claws are often used to squeeze the flange wall from the inside and outside of the flange, which often causes the bottom of the flange to hang in the air. The contact area between the mechanical claw and the flange is small, and the flange is heavy and large in size. Therefore, the mechanical claw is prone to scratches on the outer wall of the flange, causing damage to the flange. The flange may fall instantly during the process of lifting it, so the safety and stability are low. Summary of the invention

[0004] The purpose of the present invention is to provide an automatic flange handling device with an anti-falling function to solve the problems raised in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automatic flange handling equipment with an anti-falling function, comprising an engineering loading vehicle body, a main hanger and a winch unit, the main hanger is installed on the engineering loading vehicle body, the winch unit is installed below the main hanger, the winch unit is connected to a sling through a sling, an auxiliary support frame is rotatably installed on the main hanger, a universal wheel is provided at the bottom of the auxiliary support frame, a plurality of inner support plates are provided in the sling, and the plurality of inner support plates are used to support and clamp the flange, and an anti-falling mechanism is also provided in the sling, and the anti-falling mechanism supports the bottom of the flange.

[0006] Furthermore, a worm gear is rotatably provided on the main hanger, and the auxiliary support frame is connected above the worm gear. A first motor is also installed on the main hanger, and the first motor is electrically fused with the control system. A worm is connected to the first motor, and the worm and the worm gear are meshed for transmission. When the equipment transports the flange, the control system energizes the first motor to work, and the first motor drives the worm gear to rotate through the worm gear, and the worm gear drives the auxiliary support frame to rotate until the auxiliary support frame and the engineering loading vehicle body are located on both sides of the flange. When lifting the flange, the overall center of gravity is ensured to be in the middle position of the equipment to prevent the equipment from tipping over. When the equipment is not working, the auxiliary support frame is rotated and stored on the same side of the engineering loading vehicle body, thereby reducing the space occupied by the equipment and making the movement of the equipment more flexible. The auxiliary support frame that can be unfolded and stored can control the space occupied by the entire equipment, and provide auxiliary support and change the center of gravity during lifting.

[0007] Furthermore, a cylindrical cavity penetrating the bottom is provided in the sling, and the anti-slip mechanism includes a top column, which is slidably installed in the cylindrical cavity. An electric push rod is also installed in the cylindrical cavity, and the electric push rod is electrically fused to the control system, and the piston of the electric push rod is connected to the top column.

[0008] Furthermore, a plurality of slide grooves are evenly distributed in an annular shape on the outer contour of the sling, a driven slider is slidably installed in each of the slide grooves, a plurality of springs are provided on the side of each driven slider away from the sling, an inner support plate is connected on the side of the springs away from the driven slider, a rubber layer is provided on the side of the inner support plate away from the spring, and an operator controls the engineering loading vehicle body to move to one side of the flange so that the sling is aligned with the inner circle of the flange, and the winch unit lowers the sling through the sling, and the sling is placed in the inner circle of the flange.

[0009] Furthermore, a sliding pin is provided on the top of each of the driven sliders, and an annular groove is provided in the middle of the sling, in which a displacement ring is rotatably installed, and the displacement ring is provided with a plurality of inclined grooves, and the plurality of inclined grooves are evenly distributed in a ring shape, and each of the sliding pins is slidably installed in an inclined groove. The rotation of the displacement ring will generate a lateral thrust on the sliding pin through the inclined groove, and the component force of the lateral thrust makes the driven slider slide in the sliding groove. When the driven slider slides outward, the spring and the inner support plate are pushed at the same time, and the inner support plate contacts and presses the inner ring of the flange, and the rubber layer increases the friction by increasing the contact area with the flange, so that the inner support plate and the flange are supported and connected.

[0010] Furthermore, two sections of conical tooth grooves are symmetrically opened at the bottom of the displacement ring, and a pair of second motors are symmetrically installed in the sling, and the pair of second motors are electrically fused to the control system. A bevel gear is installed on the motor shaft of each second motor, and each of the bevel gears is respectively meshed with a section of conical tooth groove. The control system controls the two second motors to power on and work, and the second motor drives the bevel gear to rotate, and the bevel gear drives the displacement ring to rotate through the conical tooth groove. When the displacement ring rotates, it can drive all the inner support plates to clamp the flange from the inner ring by means of top support. The spring adapts to flange inner rings of different diameters through elastic deformation, so that the equipment can clamp flanges with inner rings of different diameters, thereby improving the universality of the equipment.

[0011] Furthermore, a third motor, a double-headed screw, an upper nut slip ring and a lower nut slip ring are provided in the middle part of the top column, the double-headed screw is coaxially connected with the motor shaft of the third motor, the upper nut slip ring and the lower nut slip ring are both screwed on the double-headed screw, and the upper nut slip ring and the lower nut slip ring are respectively connected with two opposite threads of the double-headed screw. After the hanger clamps the flange through the inner support plate, in order to prevent it from loosening during the lifting and moving process, the control system controls the electric push rod to push the top column downward, and the top column extends out of the bottom surface of the hanger, and the hanger and the flange are lifted up, and then the control system is used to drive the third motor to energize and work, and the third motor drives the double-headed screw to rotate, and the double-headed screw controls the upper nut slip ring and the lower nut slip ring to slide in opposite directions. When the upper nut slip ring and the lower nut slip ring are close to each other, the adjusting sliders are close to each other, and the telescopic connecting rod mechanism extends to the outside of the top column. When the upper nut slip ring and the lower nut slip ring are away from each other, the telescopic connecting rod mechanism is retracted into the inside of the top column.

[0012] Furthermore, at least three telescopic link mechanisms are installed in the top column, and at least three of the telescopic link mechanisms are evenly distributed around the circumference. Two adjusting sliders are connected to each telescopic link mechanism, and all of the adjusting sliders are slidably connected to the inside of the top column. The adjusting slider located at the upper end of each telescopic link mechanism is connected to the upper nut slip ring, and the adjusting slider located at the lower end of each telescopic link mechanism is connected to the lower nut slip ring. A pressure sensor is also provided on each telescopic link mechanism, and the pressure sensor is electrically fused to the control system. After all the telescopic link mechanisms are extended, the electric push rod will The top column is retracted toward the inside of the spreader until the pressure sensor on the telescopic link mechanism touches the bottom of the flange, indicating that the telescopic link mechanism has supported the flange, and the electric push rod stops moving the top column. At this time, all the inner support plates are supported into the flange from the inner circle, and the telescopic link mechanism supports the flange at the bottom. The winch unit uses the sling to lift the flange, and the engineering loading vehicle drives the flange to move. The flange will not fall off under any circumstances, which improves the safety of the equipment handling process. After the handling is completed, the telescopic link mechanism and the top column can be retracted into the spreader through the opposite control program to prevent dust and facilitate movement.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The auxiliary support frame and the engineering loading vehicle body are located on both sides of the flange to ensure that the overall center of gravity is in the middle of the equipment to prevent the equipment from tipping over. When the equipment is not working, the auxiliary support frame is rotated and stored on the same side of the engineering loading vehicle body to reduce the space occupied by the equipment and make the movement of the equipment more flexible.

[0015] 2. The inner support plate clamps the flange from the inner ring by means of top support. The spring adapts to the inner rings of flanges with different diameters through elastic deformation, so that the equipment can clamp flanges with different inner ring diameters, which improves the universality of the equipment. The inner support plate supports the flange from the inner ring, and the telescopic connecting rod mechanism supports the flange at the bottom. The winch unit lifts the flange with a sling, and the engineering loading vehicle drives the flange to move. The flange will not fall off under any circumstances, which improves the safety of the equipment handling process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The overall appearance structure of the present invention is shown in FIG. Figure 1 ;

[0017] Figure 2 The overall appearance structure of the present invention is shown in FIG. Figure 2 ;

[0018] Figure 3 It is a schematic diagram of the partial appearance structure of the present invention;

[0019] Figure 4 It is a structural schematic diagram of the connection between the hanger and the flange of the present invention;

[0020] Figure 5 It is a schematic diagram of the explosion structure of the hanger and the top column of the present invention.

[0021] Figure 6 It is a schematic diagram of the internal structure of the sling of the present invention.

[0022] Figure 7 It is a schematic diagram of the internal structure of the top column of the present invention.

[0023] Figure 8 It is a schematic diagram of the installation structure of the telescopic four-rod unit of the present invention.

[0024] In the figure: 1. engineering loading vehicle body; 2. main hanger; 3. winch unit; 4. sling; 5. first motor; 6. worm; 7. worm wheel; 8. auxiliary support frame; 9. universal wheel; 10. sling; 11. driven slider; 12. sliding pin; 13. spring; 14. inner support plate; 15. displacement ring; 16. second motor; 17. bevel gear; 18. electric push rod; 19. top column; 20. third motor; 21. double-headed screw; 22. upper nut slip ring; 23. lower nut slip ring; 24. telescopic connecting rod mechanism; 25. adjusting slider. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] Example: Figure 1-Figure 8 As shown, the present invention provides a technical solution, an automatic flange handling equipment with an anti-falling function, comprising an engineering loading vehicle body 1, a main hanger 2 and a winch unit 3, the main hanger 2 is installed on the engineering loading vehicle body 1, the winch unit 3 is installed below the main hanger 2, the winch unit 3 is connected to a sling 10 through a sling 4, an auxiliary support frame 8 is rotatably installed on the main hanger 2, a universal wheel 9 is provided at the bottom of the auxiliary support frame 8, a plurality of inner support plates 14 are provided in the sling 10, and the plurality of inner support plates 14 are used to support and clamp the flange, an anti-falling mechanism is also provided in the sling 10, and the anti-falling mechanism supports the bottom of the flange, a worm gear 7 is rotatably installed on the main hanger 2, the auxiliary support frame 8 is connected above the worm gear 7, and a first A motor 5 is provided, wherein the first motor 5 is electrically fused with the control system, and a worm 6 is connected to the first motor 5, wherein the worm 6 is meshed with the worm wheel 7 for transmission. When the equipment is transporting the flange, the control system enables the first motor 5 to be powered on, and the first motor 5 drives the worm wheel 7 to rotate through the worm 6, and the worm wheel 7 drives the auxiliary support frame 8 to rotate until the auxiliary support frame 8 and the engineering loading vehicle body 1 are located on both sides of the flange. When the flange is lifted, the overall center of gravity is ensured to be in the middle position of the equipment to prevent the equipment from tipping over. When the equipment is not working, the auxiliary support frame 8 is rotated and stored on the same side of the engineering loading vehicle body 1, thereby reducing the occupied space of the equipment and making the movement of the equipment more flexible. The auxiliary support frame 8 that can be unfolded and stored is used to control the occupied space of the entire equipment, and plays an auxiliary support role and changes the center of gravity during lifting.

[0027] A plurality of slide grooves are evenly distributed in an annular shape on the outer contour of the sling 10, and a driven slider 11 is slidably installed in each of the slide grooves. A plurality of springs 13 are arranged on the side of each driven slider 11 away from the sling 10, and an inner support plate 14 is connected to the side of the plurality of springs 13 away from the driven slider 11, and a rubber layer is arranged on the side of the inner support plate 14 away from the spring 13. A sliding pin 12 is arranged on the top of each driven slider 11, and an annular groove is arranged in the middle of the sling 10. A shift ring 15 is rotatably installed in the middle, and a plurality of bevel grooves are opened on the shift ring 15, and the plurality of bevel grooves are evenly distributed in a ring shape. Each of the sliding pins 12 is slidably installed in an bevel groove, and two sections of conical tooth grooves are symmetrically opened at the bottom of the shift ring 15. A pair of second motors 16 are symmetrically installed in the hanger 10, and the pair of second motors 16 are electrically fused with the control system, and a bevel gear 17 is installed on the motor shaft of each second motor 16, and each of the bevel gears 17 is respectively meshed with a section of conical tooth groove.

[0028] The operator controls the engineering loading vehicle body 1 to move to one side of the flange so that the sling 10 is aligned with the inner ring of the flange. The winch unit 3 lowers the sling 10 through the sling 4, and the sling 10 is placed in the inner ring of the flange. The rotation of the displacement ring 15 will generate a lateral thrust on the sliding pin 12 through the inclined groove. The component force in the lateral thrust makes the driven slider 11 slide in the slide groove. When the driven slider 11 slides outward, the spring 13 and the inner support plate 14 are pushed at the same time. The inner support plate 14 contacts and presses the inner ring of the flange. The rubber layer increases the gap with the flange. The contact area between them increases the friction force, so that the inner support plate 14 and the flange are connected by a top support, and the control system controls the two second motors 16 to be powered on. The second motor 16 drives the bevel gear 17 to rotate, and the bevel gear 17 drives the displacement ring 15 to rotate through the conical tooth groove. When the displacement ring 15 rotates, it can drive all the inner support plates 14 to clamp the flange from the inner ring by a top support method. The spring 13 adapts to the inner rings of flanges with different diameters through elastic deformation, so that the equipment can clamp flanges with inner rings of different diameters, thereby improving the universality of the equipment.

[0029] A cylindrical cavity running through the bottom is provided in the sling 10, and the anti-slip mechanism includes a top column 19, and the top column 19 is slidably installed in the cylindrical cavity. An electric push rod 18 is also installed in the cylindrical cavity, and the electric push rod 18 is electrically fused to the control system, and the piston of the electric push rod 18 is connected to the top column 19. A third motor 20, a double-headed screw 21, an upper nut slip ring 22 and a lower nut slip ring 23 are provided in the middle of the top column 19, and the double-headed screw 21 is coaxially connected to the motor shaft of the third motor 20, and the upper nut slip ring 22 and the lower nut slip ring 23 are both screwed on the double-headed screw 21, and the upper nut slip ring 22 and the lower nut slip ring 23 are respectively connected to two opposite threads of the double-headed screw 21. After the flange is clamped by the inner support plate 14, in order to prevent it from loosening during the lifting and moving process, the control system controls the electric push rod 18 to push the top column 19 downward, and the top column 19 extends out of the bottom surface of the sling 10, the sling 10 and the flange are lifted up, and then the control system is used to drive the third motor 20 to work, and the third motor 20 drives the double-headed screw 21 to rotate, and the double-headed screw 21 controls the upper nut slip ring 22 and the lower nut slip ring 23 to slide in opposite directions. When the upper nut slip ring 22 and the lower nut slip ring 23 are close to each other, the adjusting slider 25 is close to each other, and the telescopic connecting rod mechanism 24 extends to the outside of the top column 19. When the upper nut slip ring 22 and the lower nut slip ring 23 are away from each other, the telescopic connecting rod mechanism 24 is retracted into the inside of the top column 19.

[0030] Three telescopic link mechanisms 24 are installed in the top column 19, and the three telescopic link mechanisms 24 are evenly distributed on the circumference. Two adjusting sliders 25 are connected to each telescopic link mechanism 24, and all the adjusting sliders 25 are slidably connected to the inside of the top column 19. The adjusting slider 25 located at the upper end of each telescopic link mechanism 24 is connected to the upper nut slip ring 22, and the adjusting slider 25 located at the lower end of each telescopic link mechanism 24 is connected to the lower nut slip ring 23. A pressure sensor (not shown in the figure) is also provided on each telescopic link mechanism 24, and the pressure sensor is electrically fused with the control system. After all the telescopic link mechanisms 24 are extended, the electric push rod 1 8 Retract the top column 19 into the inside of the spreader 10 until the pressure sensor on the telescopic link mechanism 24 touches the bottom of the flange, indicating that the telescopic link mechanism 24 has supported the flange, and the electric push rod 18 stops moving the top column 19. At this time, all the inner support plates 14 are supported into the flange from the inner circle, and the telescopic link mechanism 24 supports the flange at the bottom. The winch unit 3 uses the sling 4 to lift the flange, and the engineering loading vehicle body 1 drives the flange to move. The flange will not fall off under any circumstances, thereby improving the safety of the equipment transportation process. After the transportation is completed, the telescopic link mechanism 24 and the top column 19 can be retracted into the spreader 10 through the opposite control program to prevent dust and facilitate movement.

[0031] The working principle of the present invention is as follows: when the equipment is transporting the flange, the control system enables the first motor 5 to be powered on and work, and the first motor 5 drives the worm wheel 7 to rotate through the worm 6, and the worm wheel 7 drives the auxiliary support frame 8 to rotate until the auxiliary support frame 8 and the engineering loading vehicle body 1 are located on both sides of the flange. When lifting the flange, the overall center of gravity is ensured to be in the middle position of the equipment to prevent the equipment from tipping over. When the equipment is not working, the auxiliary support frame 8 is rotated and stored on the same side of the engineering loading vehicle body 1, reducing the space occupied by the equipment and making the movement of the equipment more flexible. The auxiliary support frame 8 that can be unfolded and stored can control the space occupied by the entire equipment, and play a role of auxiliary support and changing the center of gravity during lifting.

[0032] The operator controls the engineering loading vehicle body 1 to move to one side of the flange so that the sling 10 is aligned with the inner ring of the flange. The winch unit 3 lowers the sling 10 through the sling 4, and the sling 10 is placed in the inner ring of the flange. The rotation of the displacement ring 15 will generate a lateral thrust on the sliding pin 12 through the inclined groove. The component force in the lateral thrust makes the driven slider 11 slide in the slide groove. When the driven slider 11 slides outward, the spring 13 and the inner support plate 14 are pushed at the same time. The inner support plate 14 contacts and presses the inner ring of the flange. The rubber layer increases the gap with the flange. The contact area between them increases the friction force, so that the inner support plate 14 and the flange are connected by a top support, and the control system controls the two second motors 16 to be powered on. The second motor 16 drives the bevel gear 17 to rotate, and the bevel gear 17 drives the displacement ring 15 to rotate through the conical tooth groove. When the displacement ring 15 rotates, it can drive all the inner support plates 14 to clamp the flange from the inner ring by a top support method. The spring 13 adapts to the inner rings of flanges with different diameters through elastic deformation, so that the equipment can clamp flanges with inner rings of different diameters, thereby improving the universality of the equipment.

[0033] After the sling 10 clamps the flange through the inner support plate 14, in order to prevent it from loosening during the lifting and moving process, the control system controls the electric push rod 18 to push the top column 19 downward, and the top column 19 extends out of the bottom surface of the sling 10. The sling 10 and the flange are lifted up, and then the control system drives the third motor 20 to be powered on. The third motor 20 drives the double-headed screw 21 to rotate, and the double-headed screw 21 controls the upper nut slip ring 22 and the lower nut slip ring 23 to slide in opposite directions. When the upper nut slip ring 22 and the lower nut slip ring 23 are close to each other, the adjusting slider 25 is close to each other, and the telescopic connecting rod mechanism 24 extends to the outside of the top column 19. When the upper nut slip ring 22 and the lower nut slip ring 23 are away from each other, the telescopic connecting rod mechanism 24 is retracted into the inside of the top column 19.

[0034] After all the telescopic links 24 are extended, the electric push rod 18 retracts the top column 19 into the interior of the sling 10 until the pressure sensor on the telescopic link 24 touches the bottom of the flange, indicating that the telescopic link 24 has supported the flange. The electric push rod 18 stops moving the top column 19. At this time, all the inner support plates 14 are supported into the flange from the inner circle, and the telescopic link 24 supports the flange at the bottom. The winch unit 3 uses the sling 4 to lift the flange, and the engineering loading vehicle body 1 drives the flange to move. The flange will not fall off under any circumstances, thereby improving the safety of the equipment transportation process. After the transportation is completed, the telescopic link 24 and the top column 19 can be retracted into the sling 10 through the opposite control program to prevent dust and facilitate movement.

[0035] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. An automatic flange handling device with an anti-falling function, characterized in that: The invention comprises an engineering loading vehicle body (1), a main hanger (2) and a winch unit (3), wherein the main hanger (2) is installed on the engineering loading vehicle body (1), the winch unit (3) is installed below the main hanger (2), the winch unit (3) is connected to a sling (10) via a sling (4), an auxiliary support frame (8) is rotatably installed on the main hanger (2), a universal wheel (9) is arranged at the bottom of the auxiliary support frame (8), a plurality of inner support plates (14) are arranged in the sling (10), and the plurality of inner support plates (14) are used to support and clamp the flange, and an anti-slip mechanism is also arranged in the sling (10), and the anti-slip mechanism supports the bottom of the flange.

2. The automatic flange handling device with anti-falling function according to claim 1 is characterized in that: A worm gear (7) is rotatably arranged on the main hanger (2), the auxiliary support frame (8) is connected above the worm gear (7), and a first motor (5) is also installed on the main hanger (2), the first motor (5) is connected to a control system circuit, a worm (6) is connected to the first motor (5), and the worm (6) is meshed with the worm gear (7) for transmission.

3. The automatic flange handling device with anti-falling function according to claim 1 is characterized in that: The sling (10) is provided with a cylindrical cavity penetrating the bottom, and the anti-slip mechanism includes a top column (19), and the top column (19) is slidably installed in the cylindrical cavity. An electric push rod (18) is also installed in the cylindrical cavity, and the electric push rod (18) is electrically fused to the control system, and the piston of the electric push rod (18) is connected to the top column (19).

4. The automatic flange handling device with anti-falling function according to claim 1 is characterized in that: A plurality of slide grooves are evenly distributed in an annular shape on the outer contour of the sling (10), a driven slider (11) is slidably installed in each of the slide grooves, a plurality of springs (13) are arranged on the side of each driven slider (11) away from the sling (10), a plurality of springs (13) are connected to an inner support plate (14) on the side away from the driven slider (11), and a rubber layer is arranged on the side of the inner support plate (14) away from the spring (13).

5. The automatic flange handling device with anti-falling function according to claim 4 is characterized in that: A sliding pin (12) is arranged at the top of each driven slider (11), an annular groove is provided in the middle of the sling (10), a displacement ring (15) is rotatably installed in the annular groove, a plurality of inclined grooves are provided on the displacement ring (15), and the plurality of inclined grooves are evenly distributed in an annular shape, and each sliding pin (12) is slidably installed in an inclined groove.

6. The automatic flange handling device with anti-falling function according to claim 5 is characterized in that: The bottom of the displacement ring (15) is symmetrically provided with two sections of conical tooth grooves, and a pair of second motors (16) are symmetrically installed in the sling (10). The pair of second motors (16) are electrically fused to the control system, and a bevel gear (17) is installed on the motor shaft of each second motor (16), and each bevel gear (17) is respectively meshed with a section of conical tooth groove.

7. The automatic flange handling device with anti-falling function according to claim 3 is characterized in that: A third motor (20), a double-ended lead screw (21), an upper nut slip ring (22) and a lower nut slip ring (23) are arranged in the middle of the top column (19); the double-ended lead screw (21) is coaxially connected to the motor shaft of the third motor (20); the upper nut slip ring (22) and the lower nut slip ring (23) are both screwed onto the double-ended lead screw (21); the upper nut slip ring (22) and the lower nut slip ring (23) are respectively connected to two opposite threads of the double-ended lead screw (21).

8. The automatic flange handling device with anti-falling function according to claim 7 is characterized in that: At least three telescopic link mechanisms (24) are installed in the top column (19), and at least three telescopic link mechanisms (24) are evenly distributed around the circumference. Two adjusting sliders (25) are connected to each telescopic link mechanism (24), and all the adjusting sliders (25) are slidably connected to the inside of the top column (19). The adjusting slider (25) located at the upper end of each telescopic link mechanism (24) is connected to an upper nut slip ring (22), and the adjusting slider (25) located at the lower end of each telescopic link mechanism (24) is connected to a lower nut slip ring (23). A pressure sensor is also provided on each telescopic link mechanism (24), and the pressure sensor is connected to a control system circuit.

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