Sectional steel arc-shaped hoisting device

Abstract

The present application belongs to the technical field of steel structure processing, and discloses a profiled steel arc-shaped hoisting device, which comprises a center column and an arc-shaped rail, and a support frame beam is connected to the center column; any point of the arc-shaped rail is equidistant from the center column, and the end of the support frame beam away from the center column is slidably connected to the arc-shaped rail; the device further comprises a horizontal moving assembly and a lifting assembly, wherein the horizontal moving assembly comprises a horizontal moving driving member, the output end of the horizontal moving driving member is connected with a movable frame, and the horizontal moving driving member drives the movable frame to slide along the support frame beam; the lifting assembly comprises a lifting driving member, the lifting driving member is arranged on the movable frame, the output end of the lifting driving member is provided with a grabbing assembly capable of grabbing the profiled steel, and the lifting driving member drives the grabbing assembly to lift. The arc-shaped rail and the support frame beam hinged to the center column can increase the range of transfer; meanwhile, the device does not occupy longitudinal use space, and is also convenient to use in cooperation with other equipment.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of steel structure processing, and particularly relates to a type steel arc-shaped hoisting device. BACKGROUND

[0002] At present, in the steel structure processing process, the type steel usually needs to pass through multiple processing procedures on multiple processing equipment, and the type steel needs to be carried in the conversion process between the multiple processing equipment. Since the type steel is heavy, the type steel is usually carried by using equipment in general cases. At present, hoisting equipment hoisting and manual hoisting through a crown block are usually used. In the hoisting equipment hoisting, the longitudinal use space of the hoisting equipment is large, and the hoisting equipment is not easy to operate in a longitudinal narrow space such as a factory building. Moreover, the hoisting equipment is heavy, cannot be matched with other mechanisms, and has poor carrying process accuracy. Manual hoisting through a crown block can only be hoisted in one straight line direction, and the hoisting range is limited. Moreover, the crown block hoisting is not suitable for high efficiency and low cost, and can increase the production cost. SUMMARY

[0003] The present application aims to provide a type steel arc-shaped hoisting device, which can increase the hoisting range through an arc-shaped track and can be easily used in a longitudinal narrow space such as a factory building.

[0004] To achieve the above-mentioned purpose, the present application adopts the following technical scheme:

[0005] The type steel arc-shaped hoisting device comprises:

[0006] a center column, a support frame beam is connected to the center column,

[0007] an arc-shaped track, any point of the arc-shaped track is equidistant from the center column, and an end of the support frame beam away from the center column is slidably connected to the arc-shaped track,

[0008] a horizontal moving assembly, the horizontal moving assembly comprises a horizontal moving driving member, an output end of the horizontal moving driving member is connected with a movable frame, the movable frame is slidably connected to the support frame beam, and the horizontal moving driving member is configured to drive the movable frame to slide along the support frame beam,

[0009] a lifting assembly, the lifting assembly comprises a lifting driving member, the lifting driving member is arranged on the movable frame, an output end of the lifting driving member is provided with a grabbing assembly capable of grabbing the type steel, and the lifting driving member drives the grabbing assembly to lift.

[0010] Preferably, the support frame beam is provided with a sliding rail extending along the length direction of the support frame beam in a relative manner, opposite ends of the movable frame are provided with a pulley matched with the sliding rail, and the sliding rail is provided with a limiting stopper at the first end and the last end.

[0011] As preferred, the lateral movement driving member is arranged on the movable frame, and an output end of the lateral movement driving member is connected with a sprocket; the lateral movement assembly further comprises a chain fixing seat arranged on the support frame beam, and a plate chain arranged along the length direction of the support frame beam is mounted on the chain fixing seat; the sprocket is engaged with the plate chain to drive the movable frame to move along the plate chain.

[0012] As preferred, one side of the lateral movement driving member is hinged with the movable frame, and an elastic member is connected between the other side of the lateral movement driving member and the movable frame to compensate the vibration difference in the vertical direction when the sprocket runs along the plate chain.

[0013] As preferred, the lateral movement assembly further comprises a driving mounting seat, the lateral movement driving member is arranged on the driving mounting seat, a transfer seat is arranged on the movable frame, one side of the driving mounting seat is transferred with the transfer seat, the other side of the driving mounting seat is provided with a limiting plate, and a plug-in hole is arranged on the limiting plate; a guide shaft is arranged on the movable frame, the guide shaft is plug-in arranged in the plug-in hole, the elastic member is a compression spring, the compression spring is sleeved on the guide shaft between the limiting plate and the movable frame, and an abutting member is arranged on the end of the guide shaft away from the movable frame.

[0014] As preferred, the lifting driving member is arranged on the movable frame, an output end of the lifting driving member is connected with a central rotating shaft capable of rotating around the circumference of itself, the central rotating shaft is connected with the grabbing assembly, and the lifting assembly is further provided with a rotating member, and an output end of the rotating member is connected with the central rotating shaft to drive the central rotating shaft to rotate.

[0015] As preferred, a rotating mounting seat is arranged on the movable frame, the rotating member is arranged on the rotating mounting seat, the rotating member has a rotating cavity penetrating through, the rotating cavity is capable of rotating around the circumference of its axis, the central rotating shaft penetrates through the rotating cavity, one of the central rotating shaft and the rotating cavity is provided with a key groove along the length direction of the central rotating shaft, and the other is provided with a matching protruding key, the length of the protruding key or the key groove on the central rotating shaft is greater than the length of the key groove or the protruding key in the rotating cavity.

[0016] As preferred, the length of the protruding key or the key groove on the central rotating shaft is greater than the length of the key groove or the protruding key in the rotating cavity and the driving stroke of the lifting driving member.

[0017] As preferred, the grabbing assembly comprises a fixed arm, a first clamping arm and a second clamping arm, the fixed arm is horizontally arranged at the output end of the lifting driving element, the middle part of the first clamping arm is connected to the first end of the fixed arm, the middle part of the second clamping arm is connected to the second end of the fixed arm, and the fixed arm is further provided with a clamping driving element, the clamping driving element has at least one output end, and the output end of the clamping driving element is connected to the first end of the first clamping arm and / or the first end of the second clamping arm to drive the second end of the first clamping arm and the second end of the second clamping arm to approach or move away from each other to grab the profile steel.

[0018] As preferred, a plurality of beam columns are further included, the beam columns are provided with arc-shaped rail beams, and the arc-shaped rails are arranged at the lower end faces of the arc-shaped rail beams.

[0019] The present application has the following beneficial effects:

[0020] The arc-shaped rails and the support frame beams hinged to the central column can increase the range of transfer, and save the cost of crown block; meanwhile, the device does not occupy the longitudinal use space, and can be operated in the longitudinal narrow space of a factory building by designing the size of the arc-shaped rails and the length of the support frame beams, and is convenient to cooperate with other equipment. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a top view of the profile steel arc-shaped hoisting device of the present application;

[0022] Figure 2 is a partial side view of the profile steel arc-shaped hoisting device of the present application;

[0023] Figure 3 is Figure 2 is an enlarged view of A in FIG.

[0024] Figure 4 is a schematic view of the chain wheel of the profile steel arc-shaped hoisting device of the present application;

[0025] Figure 5 is a schematic view of the movable frame of the profile steel arc-shaped hoisting device of the present application;

[0026] Figure 6 is a schematic view of the chain wheel of the profile steel arc-shaped hoisting device of the present application;

[0027] Figure 7 is Figure 6 is an enlarged view of B in FIG.

[0028] Figure 8 is Figure 6 is an enlarged view of C in FIG.

[0029] Figure 9is a schematic view of a lifting assembly in a profile steel arc-shaped hoisting device of the present application.

[0030] In the figure:

[0031] 10, center column; 20, support frame beam; 30, arc-shaped rail;

[0032] 40, transverse moving assembly; 401, transverse moving driving member; 402, movable frame; 403, slide rail; 404, limiting stopper; 405, sprocket; 406, plate chain; 407, chain fixing seat; 408, driving mounting seat; 409, adapter seat; 410, limiting plate; 411, elastic member; 412, abutting member; 413, guide shaft; 414, positioning frame;

[0033] 50, lifting assembly; 501, lifting driving member; 502, center rotating shaft; 503, rotating member; 504, rotating mounting seat; 505, protruding key; 506, fixed beam;

[0034] 60, grabbing assembly; 601, fixed arm; 602, first clamping arm; 603, second clamping arm; 604, clamping driving member; 605, anti-skid clamping jaw;

[0035] 70, cross beam stand; 80, arc-shaped rail cross beam; 90, electric hoist trolley. DETAILED DESCRIPTION

[0036] The present application will be further described below in conjunction with the drawings and examples. It can be understood that the specific examples described herein are only used to explain the present application, but not to limit the present application. In addition, it should be noted that, for the convenience of description, only the parts related to the present application are shown in the drawings, but not all the structures.

[0037] In the description of the present application, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0038] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "over" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is higher in horizontal height than the second feature. The first feature "under", "below" and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the first feature is lower in horizontal height than the second feature.

[0039] In the description of the present embodiment, the terms "upper", "lower", "left", "right" and the like orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used to distinguish in description and have no special meaning.

[0040] As shown in Figures 1-9 The present embodiment provides a profile steel arc-shaped hoisting device, which comprises a center column 10 and an arc-shaped rail 30, the center column 10 is connected with a support frame beam 20; any point of the arc-shaped rail 30 is equidistant from the center column 10, and the end of the support frame beam 20 away from the center column 10 is slidably connected with the arc-shaped rail 30; the device further comprises a horizontal moving assembly 40 and a lifting assembly 50, wherein the horizontal moving assembly 40 comprises a horizontal moving driving member 401, the output end of the horizontal moving driving member 401 is connected with a movable frame 402, the movable frame 402 is slidably connected with the support frame beam 20, and the horizontal moving driving member 401 drives the movable frame 402 to slide along the support frame beam 20; the lifting assembly 50 comprises a lifting driving member 501, the lifting driving member 501 is arranged on the movable frame 402, the output end of the lifting driving member 501 is provided with a grabbing assembly 60 capable of grabbing profile steel, and the lifting driving member 501 drives the grabbing assembly 60 to lift.

[0041] By arranging the arc-shaped rail 30 and the support frame beam 20 hinged to the center column 10, the range of transfer can be increased, and the cost of the crown block can be saved; at the same time, the device also does not occupy the longitudinal use space, and only needs to design the size of the arc-shaped rail 30 and the length of the support frame beam 20 to operate in a longitudinally narrow space such as a factory building, and is also convenient to cooperate with other equipment.

[0042] The present embodiment will be described in detail as follows, Figure 1 and Figure 2As shown, the embodiment provides a type steel arc-shaped hoisting device, the height of the center column 10 can be determined according to the use space and the height of the equipment in the space, which is not specifically limited here. The support frame beam 20 is connected to the top of the center column 10, specifically, the top of the center column 10 is provided with a bearing, and the support frame beam 20 is connected to the bearing. Any point of the arc-shaped rail 30 is equidistant from the center column 10, and the end of the support frame beam 20 away from the center column 10 is slidably connected to the arc-shaped rail 30. Specifically, the type steel arc-shaped hoisting device comprises a plurality of vertical cross beam columns 70, the cross beam columns 70 support the arc-shaped rail cross beam 80, and the arc-shaped rail 30 is arranged at the lower end surface of the arc-shaped rail cross beam 80. The specific length of the arc-shaped rail 30 can be designed according to the specific use scene in advance, and the maximum range can be a circle with the support frame beam 20 as the radius and the center column 10 as the center. In the embodiment, an electric hoist car is slidably connected to the arc-shaped rail 30, and the electric hoist car is connected to the support frame beam 20, so that the support frame beam 20 is slidably connected to the arc-shaped rail 30. It should be noted that the electric hoist car is a prior art and will not be described here.

[0043] As Figure 2 , Figure 4 , Figure 6 and Figure 8As shown, the steel arc-shaped lifting device further comprises a grabbing assembly 60 to grab the steel. Specifically, the grabbing assembly 60 comprises a fixed arm 601, a first clamping arm 602 and a second clamping arm 603, wherein the fixed arm 601 is horizontally arranged, the middle part of the first clamping arm 602 is connected to the first end of the fixed arm 601, and the middle part of the second clamping arm 603 is connected to the second end of the fixed arm 601. A clamping driving member 604 is further arranged on the fixed arm 601. In the embodiment, the clamping driving member 604 has one output end. For example, the clamping driving member 604 can be a single-head cylinder. The output end of the clamping driving member 604 is connected to one of the first end of the first clamping arm 602 and the first end of the second clamping arm 603. For example, the output end of the clamping driving member 604 can be connected to the second clamping arm 603 by a U-shaped fork. The first end of the first clamping arm 602 is connected to the opposite side of the output end of the clamping driving member 604. Thus, the first end of the first clamping arm 602 and the first end of the second clamping arm 603 are driven to approach or move away from each other by the clamping driving member 604, so that the second end of the first clamping arm 602 and the second end of the second clamping arm 603 can approach or move away from each other by the connection. The second end of the first clamping arm 602 and the second end of the second clamping arm 603 are provided with anti-slip clamping jaws 605 arranged oppositely to grab the steel. In other embodiments, the clamping driving member 604 can have two output ends. For example, the clamping driving member 604 can be a double-head cylinder. In this case, one of the output ends of the clamping driving member 604 is connected to the first end of the first clamping arm 602, and the other output end is connected to the first end of the second clamping arm 603, so as to drive the anti-slip clamping jaws 605 of the second end of the first clamping arm 602 and the second end of the second clamping arm 603 to approach or move away from each other to grab the steel. In the embodiment, the anti-slip clamping jaws 605 can be in the form of a long strip, and the opposite surfaces are provided with anti-slip surfaces to facilitate clamping the steel. In other embodiments, other forms of anti-slip clamping jaws 605 can also be used, which are not limited specifically herein.

[0044] As Figure 2 , Figure 4 , Figure 6 and Figure 9As shown, in order to facilitate the movement of the grabbing assembly 60 in the vertical direction, the arc-shaped lifting device of the section steel is further provided with a lifting assembly 50, wherein the lifting assembly 50 comprises a lifting driving member 501, and the output end of the lifting driving member 501 is provided with the grabbing assembly 60 capable of grabbing the section steel. Specifically, the output end of the lifting driving member 501 is connected to the fixed arm 601, and in the embodiment, the lifting driving member 501 adopts a pneumatic cylinder. More specifically, the output end of the lifting driving member 501 is axially connected to a central rotating shaft 502 capable of rotating around the circumference thereof, and the output end of the lifting driving member 501 is connected to one end of the central rotating shaft 502 in the axial direction to drive the central rotating shaft 502 to lift in the vertical direction, and the other end of the central rotating shaft 502 is connected to a fixed beam 506 arranged in the horizontal direction, and the central rotating shaft 502 is capable of rotating around the circumference thereof; the grabbing assembly 60 is provided in at least one, and the grabbing assemblies 60 are arranged on the fixed beam 506 at intervals; more specifically, in the embodiment, two groups of grabbing assemblies 60 are arranged in order to better cooperate with the length of the section steel, and the fixed arm 601 of the grabbing assembly 60 is connected to the fixed beam 506. And the lifting assembly 50 is further provided with a rotating member 503, and the output end of the rotating member 503 is connected to the central rotating shaft 502 to drive the central rotating shaft 502 to rotate. Thus, the above structure can lift the grabbing assembly 60 in the vertical direction, thereby lifting or lowering the section steel clamped by the anti-skid clamping jaw 605, and the lifting of the central rotating shaft 502 driven by the rotating member 503 to rotate can also adjust the rotation angle of the anti-skid clamping jaw 605 clamped in the circumferential direction, facilitating clamping.

[0045] As Figure 9As shown, specifically, in order to avoid the interference between the lifting and rotation of the central rotating shaft 502, the rotating mounting seat 504 is further provided in the embodiment, the rotating member 503 is arranged on the rotating mounting seat 504, the rotating member 503 has a rotating cavity penetrating in the vertical direction, the central rotating shaft 502 penetrates the rotating cavity (not shown in the figure), one of the rotating cavity and the central rotating shaft 502 is provided with a key groove along the length direction of the central rotating shaft 502 (not shown in the figure), and the other is provided with a protruding key 505 in cooperation, the rotating cavity can rotate circumferentially around its own axis, so as to drive the central rotating shaft 502 to rotate through the cooperation of the key groove and the protruding key 505, and when moving in the vertical direction, the protruding key 505 can slide up and down along the key groove, thereby realizing the mutual non-interference of the lifting and rotation of the central rotating shaft 502. In order to avoid the sliding of the two, the length of the protruding key 505 or the key groove on the central rotating shaft 502 is greater than the length of the key groove or the protruding key 505 in the rotating cavity and the driving stroke of the lifting driving member 501, so as to avoid the mutual sliding of the two. More specifically, the key groove is arranged in the rotating cavity, and the protruding key 505 is arranged on the central rotating shaft 502 along the length direction thereof. More specifically, in the embodiment, the rotating member 503 is a rotating motor and a hollow speed reducer combination, the rotating cavity is a rotating cavity on the hollow speed reducer, and the rotating motor and the hollow speed reducer are arranged on the rotating mounting seat 504. In other embodiments, the rotating member 503 can also be provided with an inner annular outer wall and an inner wall, the ball is arranged between the outer wall and the inner wall, the protruding key 505 or the key groove is arranged on the inner wall, the inner wall can rotate relative to the outer wall, and the inner wall can be driven by the motor through the connecting member, thereby realizing the mutual non-interference between the lifting and rotation of the central rotating shaft 502 through the above structure.

[0046] As Figures 2 to 6As shown, in order to move the grabbing assembly 60 horizontally on the support frame beam 20, so that the grabbing assembly 60 can grab the profile steel covering any position within the covered area of the support frame beam 20 when sliding on the arc-shaped track 30, the profile steel arc-shaped hoisting device further comprises a horizontal moving assembly 40, wherein the horizontal moving assembly 40 comprises a horizontal moving driving member 401, the output end of the horizontal moving driving member 401 is connected with a movable frame 402, the movable frame 402 is slidingly connected with the support frame beam 20, in addition, the lifting assembly 50 is arranged on the movable frame 402, and the horizontal moving driving member 401 drives the movable frame 402 to slide along the support frame beam 20, thereby being able to drive the lifting assembly 50 arranged on the movable frame 402 to move, so as to drive the grabbing assembly 60 to move. Specifically, the support frame beam 20 is relatively provided with a sliding rail 403 extending along the length direction of the support frame beam 20, and an example can be but is not limited to a channel steel, and the opposite ends of the movable frame 402 are provided with sliding wheels matched with the sliding rail 403, in the embodiment, a plurality of sliding wheels are provided and are uniformly arranged along the length direction of the movable frame 402, thereby being able to uniformly share the weight of the profile steel during grabbing, so that the movable frame 402 is more stable. Limiting stop members 404 are arranged at the first end and the last end of the sliding rail 403, the limiting stop members 404 can block the excessive movement of the sliding wheels, thereby avoiding the risk of slipping.

[0047] The horizontal moving assembly 40 is further provided with a chain fixing seat 407 along the support frame beam 20, a horizontal moving drive 401 is arranged on a movable frame 402, and a chain wheel 405 is connected to an output end of the horizontal moving drive 401; the chain fixing seat 407 is arranged on the support frame beam 20 along the length direction of the support frame beam 20, and a plurality of oppositely arranged positioning frames 414 are arranged at two ends of the chain fixing seat 407 in order to stabilize the chain fixing seat 407, one end of the positioning frame 414 is fixed on the chain fixing seat 407, and the other end of the positioning frame 414 is fixed on the support frame beam 20; and a plate chain 406 is arranged on the chain fixing seat 407, the plate chain 406 is arranged along the length direction of the support frame beam 20, and the chain wheel 405 is engaged with the plate chain 406 so as to move the movable frame 402 along the plate chain 406. It can be understood that the plate chain 406 can be arranged in two parts in order to make the chain wheel 405 walk more stably. In the embodiment, the horizontal moving drive 401 is a driving motor. At present, errors may occur in the production and installation of the support frame beam 20, the slide rail 403 and the movable frame 402 and the like, and thus the plate chain 406 may also have certain errors when being installed, and the movable frame 402 may also have walking errors when hoisting the section steel, therefore, one side of the horizontal moving drive 401 is hinged to the movable frame 402, and an elastic element 411 is connected between the other side of the horizontal moving drive 401 and the movable frame 402 in order to compensate for the vibration difference of the chain wheel 405 in the vertical direction when the chain wheel 405 walks on the plate chain 406, so as to prevent the chain wheel 405 from being stuck when walking on the plate chain 406. Specifically, the horizontal moving assembly 40 further comprises a driving mounting seat 408, the horizontal moving drive 401 is arranged on the driving mounting seat 408, a transfer seat 409 is arranged on the movable frame 402, one side of the driving mounting seat 408 is transferred to the transfer seat 409, and a rotating pin can be used for the transfer. A limiting plate 410 is arranged on the other side of the driving mounting seat 408, and a plug-in hole is arranged on the limiting plate 410; a guide shaft 413 is arranged on the movable frame 402, the guide shaft 413 is plug-in connected to the plug-in hole, the elastic element is a compression spring in the embodiment, the compression spring is sleeved on the guide shaft 413 between the limiting plate 410 and the movable frame 402, and an abutting element 412 is arranged at one end of the guide shaft 413 away from the movable frame 402. By using the above structure, when the chain wheel 405 has walking errors in the vertical direction, the chain wheel 405 will vibrate up and down to compensate, so as to prevent the chain wheel 405 from being stuck, and the hoisting is carried out smoothly.

[0048] Obviously, the above embodiments of the present application are merely exemplary for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, various obvious changes, re-adjustments and replacements can be made without departing from the protection scope of the present application. It is unnecessary and impossible to enumerate all the implementation modes. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. A curved steel hoisting device, characterized in that, include: A central column (10) is provided, on which a supporting beam (20) is connected; An arc-shaped rail (30) is provided, with any point of the arc-shaped rail (30) being equidistant from the central column (10), and the end of the support beam (20) away from the central column (10) is slidably connected to the arc-shaped rail (30). A transverse component (40); the transverse component (40) includes a transverse drive (401), the output end of which is connected to a movable frame (402), the movable frame (402) being slidably attached to the support beam (20), and the transverse drive (401) being configured to drive the movable frame (402) to slide along the support beam (20); The lifting assembly (50) includes a lifting drive (501), which is mounted on the movable frame (402). The output end of the lifting drive (501) is provided with a gripping component (60) capable of gripping steel sections. The lifting drive (501) drives the gripping component (60) to lift. The transverse drive (401) is mounted on the movable frame (402), and the output end of the transverse drive (401) is connected to a sprocket (405); the transverse assembly (40) also includes a chain fixing seat (407) mounted on the support beam (20), and a plate chain (406) is mounted on the chain fixing seat (407) along the length direction of the support beam (20), and the sprocket (405) meshes with the plate chain (406) to make the movable frame (402) move along the plate chain (406); One side of the transverse drive (401) is hinged to the movable frame (402), and an elastic element (411) is connected between the other side of the transverse drive (401) and the movable frame (402) to compensate for the vertical vibration difference of the sprocket (405) when it travels along the plate chain (406). The transverse assembly (40) further includes a drive mounting base (408), the transverse drive component (401) is disposed on the drive mounting base (408), the movable frame (402) is provided with an adapter (409), one side of the drive mounting base (408) is rotatably connected to the adapter (409), the other side of the drive mounting base (408) is provided with a limiting plate (410), the limiting plate (410) is provided with an insertion hole; the movable frame (402) is provided with a guide shaft (413), the guide shaft (413) is movably inserted into the insertion hole, the elastic element (411) is a compression spring, the compression spring is sleeved on the guide shaft (413) between the limiting plate (410) and the movable frame (402), and an abutment (412) is provided at one end of the guide shaft (413) away from the movable frame (402); It also includes multiple crossbeam columns (70), which are supported by arc-shaped rail crossbeams (80), and the arc-shaped rails (30) are arranged on the lower end face of the arc-shaped rail crossbeams (80).

2. The arc-shaped hoisting device for structural steel according to claim 1, characterized in that, The support beam (20) is provided with a slide rail (403) extending along the length of the support beam (20). The opposite end of the movable frame (402) is provided with a pulley that cooperates with the slide rail (403). The beginning and end of the slide rail (403) are provided with limit stops (404).

3. The arc-shaped hoisting device for structural steel according to claim 1, characterized in that, The lifting drive component (501) is mounted on the movable frame (402). The output end of the lifting drive component (501) is axially connected to a central rotating shaft (502) capable of rotating around itself. The central rotating shaft (502) is connected to the gripping assembly (60). The lifting assembly (50) is also provided with a rotating component (503). The output end of the rotating component (503) is connected to the central rotating shaft (502) to drive the central rotating shaft (502) to rotate.

4. The arc-shaped hoisting device for structural steel according to claim 3, characterized in that, The movable frame (402) is provided with a rotating mounting base (504), and the rotating component (503) is provided on the rotating mounting base (504). The rotating component (503) has a through rotating cavity, which can rotate circumferentially around its own axis. The central rotating shaft (502) passes through the rotating cavity. One of the rotating cavity and the central rotating shaft (502) is provided with a keyway along the length direction of the central rotating shaft (502), while the other is provided with a matching protruding key (505).

5. The arc-shaped hoisting device for structural steel according to claim 4, characterized in that, The length of the protruding key (505) or the keyway located on the central rotating shaft (502) is greater than the length of the keyway or the protruding key (505) located in the rotating cavity and the driving stroke of the lifting drive (501).

6. The arc-shaped hoisting device for structural steel according to any one of claims 1-5, characterized in that, The gripping assembly (60) includes a fixed arm (601), a first clamping arm (602), and a second clamping arm (603). The fixed arm (601) is horizontally disposed at the output end of the lifting drive (501). The middle part of the first clamping arm (602) is connected to the first end of the fixed arm (601). The middle part of the second clamping arm (603) is connected to the second end of the fixed arm (601). The fixed arm (601) is also provided with a gripping drive (604). The gripping drive (604) has at least one output end. The output end of the gripping drive (604) is connected to the first end of the first clamping arm (602) and / or the first end of the second clamping arm (603) so as to drive the second end of the first clamping arm (602) and the second end of the second clamping arm (603) to move closer or further apart to grip the steel profile.

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