A steel structure profile lifting device

Abstract

The present invention provides a steel structure profile lifting device, which relates to the field of lifting machinery. The steel structure profile lifting device comprises a symmetrically arranged fixed frame, the middle rear end of the fixed frame is rotatably connected to a winding wheel, the front end of the fixed frame is fixedly installed with a reversing wheel, the outer surface of the winding wheel is wrapped with a lifting rope, the lifting rope bypasses the reversing wheel and extends downward, the bottom end of the lifting rope is fixedly connected to the lifting frame, the two sides of the reversing wheel are rotatably connected to sprockets, the outer surface of the winding wheel is wrapped with a chain, the chain is transmission-connected to the sprocket, and the bottom end of the chain is connected to the lifting frame. The steel structure profile lifting device is provided with a chain that moves synchronously with the lifting rope to pull the lifting frame, and when the lifting profile deflects, the chain can bend but cannot deflect to limit the lifting part that is about to deflect, thereby preventing the profile from falling off due to deflection during the lifting process.

Description

Technical Field

[0001] The invention relates to the technical field of hoisting machinery, in particular to a steel structure profile hoisting device. Background Art

[0002] Due to the long length of steel structure profiles, they will tilt due to uneven force during the lifting process. The tilted profiles are easy to slip from the lifting mechanism and there is a risk of falling off. At the same time, the risk of collision during the lifting and moving of the tilted profiles is also high.

[0003] The existing patented multifunctional combined lifting balancing device with publication number "CN117185109B" discloses that the lifting balancing device includes a balancing beam located at the upper part and a lifting beam located at the lower part, and a dynamic balancing device is arranged in the balancing beam. Through the movement of the dynamic balancing device, the position of the dynamic balancing device is adjusted according to the degree of deviation of the balancing beam from the horizontal direction, so as to reduce the degree of deviation of the balancing beam from the horizontal direction and ensure that the balancing beam is in a balanced state. The balancing beam plays a balancing role, and the lifting beam enables the lifting frame to always maintain a vertical state. The cooperation of the fixed beam body and the movable beam body enables the lifting beam of the present application to be improved in size according to actual lifting requirements. Under the action of the pull plate, the balancing beam and the lifting beam are assembled together, and the lifting beam is pulled by the pull plate, so that the lifting balancing device of the present application can stably lift different objects.

[0004] The technical solution proposed in this application can fix the hoisted object from both ends so that the hoisted object can be lifted in a balanced manner. However, when the hoisted object is in the shape of a long strip and is only fixed from both ends, the middle part of the long strip of hoisted object will deform downward under the action of gravity and it is easy to fall off. At the same time, the concentrated force on a single lifting point can easily cause the hoisted object to deform. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a steel structure profile hoisting device, which solves the problems raised in the background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a steel structure profile lifting device, including a symmetrically arranged fixed frame, a middle rear end of the fixed frame is rotatably connected to a winding wheel, a front end of the fixed frame is fixedly installed with a reversing wheel, the outer surface of the winding wheel is wrapped with a lifting rope, the lifting rope passes around the reversing wheel and extends downward, the bottom end of the lifting rope is fixedly connected to the lifting frame, sprockets are rotatably connected on both sides of the reversing wheel, a chain is wrapped around the outer surface of the winding wheel, the chain is transmission-connected to the sprocket, and the bottom end of the chain is connected to the lifting frame.

[0007] Preferably, the sprockets are divided into two symmetrical groups, each group has two sprockets, and the chain link hinge axes engaged by the two sprockets do not overlap.

[0008] Preferably, a sliding guide rail is fixedly installed on the bottom end of the lifting frame, and support frames are fixedly installed on both ends of one side of the sliding guide rail. A lead shaft is rotatably connected to the inside of the support frame, and the two lead shafts rotate synchronously. The outer surfaces of the lead shafts are meshed with a hinged table, and the hinged table is slidably connected to the inside of the support frame. A positioning baffle is rotatably connected to the middle part of the hinged table, and a lifting ring is fixedly installed on the outer surface of the sliding guide rail.

[0009] Preferably, the lifting ring is symmetrically slidably connected to the outer surface of the sliding guide rail, and positioning mechanisms are fixedly installed on both sides of the lifting ring.

[0010] Preferably, the positioning mechanism comprises an electromagnetic telescopic rod, a magnetic block is fixedly mounted on the free end of the electromagnetic telescopic rod, and the magnetic block is attracted to the sliding guide rail.

[0011] Preferably, the lifting ring is divided into two symmetrical groups, each group has at least three holes, and the side of the lifting ring away from the lead shaft is provided with through holes with the same number as each group. Traction mechanisms are fixedly installed in the middle and both sides of the sliding guide rail, and the traction mechanisms are connected by a traction rope, which is sleeved inside the through hole. Baffles are provided on both sides of the lifting ring, which are fixedly connected to the traction rope, and clamping mechanisms are provided on both sides of the bottom end of the lifting ring.

[0012] Preferably, the clamping mechanism comprises a connecting frame, and a vertical electromagnetic telescopic sleeve is fixedly mounted on the inner side of the connecting frame.

[0013] Preferably, one of the connecting frames is fixedly connected to the lifting ring, and the other connecting frame is elastically hinged to the lifting ring.

[0014] Preferably, the electromagnetic telescopic sleeve comprises a unidirectional electromagnetic telescopic sleeve whose upper end moves unidirectionally downward, and a bidirectional conductive telescopic sleeve whose middle part moves upward and downward respectively.

[0015] Preferably, the cross-sectional shape of the positioning baffle is a "C" shape, and the positioning baffle does not block the movement of the lifting ring.

[0016] The present invention has the following beneficial effects:

[0017] 1. The steel structure profile lifting device is provided with a chain that moves synchronously with the lifting rope to pull the lifting frame. When the lifting profile deflects, the chain can bend but cannot deflect to limit the lifting part that is about to deflect, thereby preventing the profile from falling off due to deflection during the lifting process.

[0018] 2. The steel structure profile lifting device drives the guide shaft to rotate, adjusts the positions of the two positioning baffles so that the distance between the two positioning baffles is the same as the length of the profile, releases the lifting frame and sets the lifting frame parallel to the profile, and uses the traction mechanism to symmetrically adjust the equidistant positions of the lifting rings on both sides according to the length of the profile, and uses the electromagnetic telescopic rod to push the magnetic block and the sliding guide rail to attract the fixed position, initially lift the profile, make the profile slightly leave the ground and put it directly under the lifting device, then connect the bottom end of the chain to the lifting frame by plugging for lifting. This arrangement can make the hoisted profile level and ensure uniform force during lifting.

[0019] 3. The steel structure profile lifting device sets the profile between two positioning baffles. When the lifting ring is connected to the lifted profile, it is only necessary to rotate the hinged connecting frame and sleeve the lifting ring on the outer surface of the profile, and reset it under the action of the automatic reset mechanism with a self-locking function, so that the lifting ring can be quickly connected to the profile, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the connection of the reversing wheel of the present invention;

[0022] Figure 3 This is a schematic diagram of the connection of the support frame of the present invention;

[0023] Figure 4 It is a connection schematic diagram of the traction mechanism of the present invention;

[0024] Figure 5 This is a schematic diagram of the connection of the lifting ring of the present invention;

[0025] Figure 6 It is a connection schematic diagram of the clamping mechanism of the present invention.

[0026] Among them, 1. fixed frame; 2. winding wheel; 3. reversing wheel; 4. lifting rope; 5. lifting frame; 6. sprocket; 7. chain; 8. sliding guide rail; 9. support frame; 10. lead shaft; 11. hinge table; 12. positioning baffle; 13. lifting ring; 14. through hole; 15. traction mechanism; 16. traction rope; 17. baffle; 18. clamping mechanism; 19. positioning mechanism; 191. electromagnetic telescopic rod; 192. magnetic suction block; 181. connecting frame; 182. electromagnetic telescopic sleeve. DETAILED DESCRIPTION

[0027] 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.

[0028] The embodiment of the present invention provides a steel structure profile lifting device:

[0029] Embodiment 1, as Figure 1-6 As shown, it includes a symmetrically arranged fixing frame 1, a winding wheel 2 is rotatably connected to the middle rear end of the fixing frame 1, a reversing wheel 3 is fixedly installed at the front end of the fixing frame 1, a lifting rope 4 is wound around the outer surface of the winding wheel 2, the lifting rope 4 passes around the reversing wheel 3 and extends downward, the bottom end of the lifting rope 4 is fixedly connected to a lifting frame 5, sprockets 6 are rotatably connected to both sides of the reversing wheel 3, a chain 7 is wound around the outer surface of the winding wheel 2, the chain 7 is transmission-connected to the sprocket 6, and the bottom end of the chain 7 is connected to the lifting frame 5. Through such an arrangement, when the hoisted profile is deflected during the upward traction process, the deflection can be prevented by limiting the chains 7 on both sides, and the chains 7 can also play a role in auxiliary traction.

[0030] The sprockets 6 are divided into two symmetrical groups, each group of sprockets 6 has two sprockets, and the chain 7 engaged by the two sprockets 6 does not overlap the link hinge axis. This arrangement can increase the overall strength and avoid breakage at the link hinge position.

[0031] A sliding guide rail 8 is fixedly installed at the bottom end of the lifting frame 5, and support frames 9 are fixedly installed at both ends of one side of the sliding guide rail 8. A lead shaft 10 is rotatably connected inside the support frame 9. An image recognition device can be set at the bottom end of the lifting frame 5 to identify the length of the hoisted profile, which is used for the rotation of the two lead shafts 10. The two lead shafts 10 rotate synchronously, and the outer surface of the lead shaft 10 is meshed with a hinge table 11. The hinge table 11 is slidably connected to the inside of the support frame 9. A positioning baffle 12 is rotatably connected to the middle part of the hinge table 11. A lifting ring 13 is fixedly installed on the outer surface of the sliding guide rail 8. Through such a setting, the positioning baffles 12 on both sides can be used to determine the length of the hoisted profile, and the profile is set between the two positioning baffles 12, so that the lifting range can be determined. The lifting ring 13 is divided into two symmetrical groups, each group has at least three members, and multiple lifting rings 13 can ensure uniform force. The side of the lifting ring 13 away from the lead shaft 10 is provided with through holes 14 with the same number as each group. The middle and both sides of the sliding guide rail 8 are fixedly installed with traction mechanisms 15, and the traction mechanisms 15 are connected by traction ropes 16, and the traction ropes 16 are sleeved inside the through holes 14. Baffles 17 are provided on both sides of the lifting ring 13, and the baffles 17 are fixedly connected to the traction ropes 16. Clamping mechanisms 18 are provided on both sides of the bottom of the lifting ring 13. Through such a setting, the two lifting rings 13 at the same position on both sides can be simultaneously controlled to move to the specified position, thereby making the device simpler.

[0032] The clamping mechanism 18 includes a connecting frame 181 , and a vertical electromagnetic telescopic sleeve 182 is fixedly installed on the inner side of the connecting frame 181 . Such an arrangement enables the electromagnetic telescopic sleeve 182 to extend outward, thereby being squeezed and fixed to the profile.

[0033] One of the connecting frames 181 is fixedly connected to the lifting ring 13, and the other connecting frame 181 is elastically hinged to the lifting ring 13. At the same time, an automatic reset mechanism with a self-locking function is provided for the hinged part. For example, the hinge shaft of the connecting frame 181 is connected to the lifting ring through a torsion spring, and the reset power is connected to the power source through a worm gear transmission. When the length of the lifting profile is constant, the lifting frame 5 is overlapped with the profile and the hinged lifting frame 5 is driven to swing. The profile is placed between the two connecting frames 181 to achieve quick fixation of the profile.

[0034] The electromagnetic telescopic sleeve 182 includes a unidirectional electromagnetic telescopic sleeve that moves unidirectionally downward at the upper end, and a bidirectional conductive telescopic sleeve that moves upward and downward in the middle. This arrangement can better adapt to I-beams or H-beams of different lengths and ensure that the profiles can be positioned.

[0035] The lifting ring 13 is symmetrically slidably connected to the outer surface of the sliding guide rail 8, and positioning mechanisms 19 are fixedly installed on both sides of the lifting ring 13. Such a setting enables the lifting ring 13 to move relative to each other, so that all the lifting rings 13 can participate in the lifting task. The positioning mechanism 19 includes an electromagnetic telescopic rod 191, and a magnetic block 192 is fixedly installed at the free end of the electromagnetic telescopic rod 191. The magnetic block 192 is attracted to the sliding guide rail 8. Such a setting can make the position of the lifting ring 13 relatively fixed and no longer slide.

[0036] The cross-sectional shape of the positioning baffle 12 is “C”-shaped, and the positioning baffle 12 does not block the movement of the lifting ring 13 . This arrangement can prevent the lifting ring 13 from interfering with the positioning baffle 12 during movement.

[0037] When in use, the lifting frame 5 is pulled by a chain 7 which moves synchronously with the lifting rope 4. When the lifting profile is deflected, the chain can bend but cannot deflect to limit the lifting part that is about to deflect, thereby preventing the profile from falling off due to deflection during the lifting process.

[0038] The specific length of the profile to be hoisted is known. The positions of the two positioning baffles 12 are adjusted by rotating the lead shaft 10 so that the distance between the two positioning baffles 12 is the same as the length of the profile. The hoisting frame 5 is released and the hoisting frame 5 is parallel to the profile. The hoisting rings 13 on both sides are symmetrically adjusted to equidistant positions according to the length of the profile through the traction mechanism 15, and the magnetic block 192 and the sliding guide rail 8 are pushed to attract the fixed position through the electromagnetic telescopic rod 191. The profile is initially hoisted so that the profile is slightly off the ground and is placed directly below the hoisting device. At this time, the bottom end of the chain 7 is connected to the hoisting frame 5 by plugging for hoisting. Through such an arrangement, the hoisted profile can be hoisted horizontally and the force can be evenly distributed.

[0039] When the length of the hoisted profiles is fixed and the number is large, there is no need to adjust the position of the positioning baffle 12 and the lifting ring 13. The profile is set between the two positioning baffles 12. When the lifting ring 13 is connected to the hoisted profile, it is only necessary to rotate the hinged connecting frame and sleeve the lifting ring 13 on the outer surface of the profile, and reset it under the action of the automatic reset mechanism with a self-locking function, so that the lifting ring 13 can be quickly connected to the profile, thereby improving work efficiency.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A steel structure profile lifting device, comprising a symmetrically arranged fixing frame (1), a winding wheel (2) is rotatably connected to the middle rear end of the fixing frame (1), a reversing wheel (3) is fixedly installed to the front end of the fixing frame (1), a lifting rope (4) is wound around the outer surface of the reversing wheel (2), the lifting rope (4) passes around the reversing wheel (3) and extends downward, and the bottom end of the lifting rope (4) is fixedly connected to the lifting frame (5), characterized in that: The two sides of the reversing wheel (3) are rotatably connected to sprockets (6), the outer surface of the winding wheel (2) is wound with a chain (7), the chain (7) is transmission-connected to the sprocket (6), and the bottom end of the chain (7) is connected to the hanging frame (5); A sliding guide rail (8) is fixedly installed at the bottom end of the hanging frame (5), and a support frame (9) is fixedly installed at both ends of one side of the sliding guide rail (8). A guide shaft (10) is rotatably connected inside the support frame (9). The two guide shafts (10) rotate synchronously. The outer surfaces of the guide shafts (10) are meshed with a hinge table (11). The hinge table (11) is slidably connected to the inside of the support frame (9). A positioning baffle (12) is rotatably connected to the middle of the hinge table (11). A hanging ring (13) is fixedly installed on the outer surface of the sliding guide rail (8); The lifting ring (13) is divided into two symmetrical groups, each group having at least three members. A through hole (14) having the same number as each group is provided on a side of the lifting ring (13) away from the guide shaft (10). A traction mechanism (15) is fixedly installed in the middle and on both sides of the sliding guide rail (8). The traction mechanisms (15) are connected by a traction rope (16). The traction rope (16) is sleeved inside the through hole (14). Baffles (17) are provided on both sides of the lifting ring (13). The baffles (17) are fixedly connected to the traction rope (16). Clamping mechanisms (18) are provided on both sides of the bottom end of the lifting ring (13).

2. A steel structure profile lifting device according to claim 1, characterized in that: The sprockets (6) are divided into two symmetrical groups, each group of sprockets (6) has two sprockets, and the chain (7) linking hinge axes of the two sprockets (6) meshing with each other do not overlap.

3. A steel structure profile lifting device according to claim 1, characterized in that: The lifting ring (13) is symmetrically slidably connected to the outer surface of the sliding guide rail (8), and positioning mechanisms (19) are fixedly installed on both sides of the lifting ring (13).

4. A steel structure profile lifting device according to claim 3, characterized in that: The positioning mechanism (19) comprises an electromagnetic telescopic rod (191), a magnetic attraction block (192) being fixedly mounted on the free end of the electromagnetic telescopic rod (191), and the magnetic attraction block (192) is attracted to the sliding guide rail (8).

5. The steel structure profile lifting device according to claim 1, characterized in that: The clamping mechanism (18) comprises a connecting frame (181), and a vertical electromagnetic telescopic sleeve (182) is fixedly mounted on the inner side of the connecting frame (181).

6. A steel structure profile lifting device according to claim 5, characterized in that: One of the connecting frames (181) is fixedly connected to the lifting ring (13), and the other connecting frame (181) is elastically hinged to the lifting ring (13).

7. A steel structure profile lifting device according to claim 5, characterized in that: The electromagnetic telescopic sleeve (182) comprises a unidirectional electromagnetic telescopic sleeve whose upper end moves unidirectionally downward, and a bidirectional conductive telescopic sleeve whose middle part moves upward and downward respectively.

8. The steel structure profile lifting device according to claim 1, characterized in that: The cross-sectional shape of the positioning baffle (12) is a "C" shape, and the positioning baffle (12) does not block the movement of the lifting ring (13).

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