Gantry crane structure for subway station

Abstract

The invention belongs to the technical field of gantry cranes, and discloses a gantry crane structure for a subway station, which comprises a gantry frame main body cross beam, and further comprises a hoisting fixing assembly arranged on the lower side of the gantry frame main body cross beam and used for hoisting and moving materials; the horizontal adjusting assembly is arranged between the portal frame main body cross beam and the hoisting fixing assembly and used for supporting the hoisting fixing assembly. Through cooperation of the side edge fixing frame, the hoisting bearing piece and other structures, different hoisting fixing modes can be conveniently used according to different sizes and weights of hoisting material equipment, and the hoisting efficiency is improved. Through the arrangement of the movable main body bracket, the hoisting steel cable has an enough installation length range so as to fix material equipment with different shapes and sizes, the arrangement of the side edge fixing frame is used for hoisting light-weight materials by installing the hoisting steel cable, and the hoisting bearing piece and the fixing hole are used for hoisting large-size or heavy-weight material equipment; therefore, the bearing capacity and the stability of the gantry crane are ensured.

Description

Technical Field

[0001] The present invention belongs to the technical field of gantry cranes, and specifically relates to a gantry crane structure for subway stations. Background Art

[0002] Gantry cranes are often used in the construction of subway stations. Especially for the movement and installation of large equipment, and the hoisting of materials for track laying, such as ventilation units, transformers, and shield machine components, as well as the hoisting of steel rails, track panels, or catenary poles, gantry cranes are required to provide lifting support. Gantry cranes can cover a wide working range, adapt to narrow platform or tunnel spaces, improve the laying efficiency, and at the same time, the high load-bearing capacity and precise positioning function of gantry cranes can complete vertical and horizontal transportation.

[0003] The overall dimensions and self-weights of precast components of traditional prefabricated subway stations are relatively large. Using conventional construction techniques and machinery is not conducive to construction convenience and safety. At the same time, conventional hoisting equipment cannot meet the hoisting requirements of components under complex foundation pit support forms. This patent aims to solve the hoisting operation of precast components of prefabricated subway stations under complex support environments and adapt to the later requirements of muck and material hoisting. Therefore, a gantry crane structure for subway stations is proposed. Summary of the Invention

[0004] To solve the problems of cumbersome construction and low safety of traditional construction machinery proposed in the above background art, the present invention provides a gantry crane structure for subway stations.

[0005] To achieve the above object, the present invention provides the following technical solution: A gantry crane structure for subway stations includes a main beam of the gantry frame, and further includes:

[0006] A lifting and fixing assembly, which is arranged on the lower side of the main beam of the gantry frame for lifting and moving materials;

[0007] A horizontal adjustment assembly, which is arranged between the main beam of the gantry frame and the lifting and fixing assembly for supporting the lifting and fixing assembly and controlling the lifting and fixing assembly to perform a slewing operation;

[0008] An adjustment trolley assembly, which is arranged on the top of the main beam of the gantry frame for controlling the lifting and rotation of the horizontal adjustment assembly and the lifting and fixing assembly;

[0009] Among them, the lifting and fixing assembly includes a movable main body bracket arranged on the lower side of the horizontal adjustment assembly. The middle part of the upper side of the movable main body bracket is fixedly connected with a second turntable, and teeth are provided inside the second turntable;

[0010] The horizontal adjustment component includes a fixed main bracket disposed between the cross beam of the gantry main body and the movable main bracket. A power unit is installed in the middle of the fixed main bracket, and a first gear is fixedly connected to the bottom output end of the power unit.

[0011] Preferably, side fixing brackets are provided at the bottoms of both ends of the movable main bracket. Lifting steel cables are externally connected to the side fixing brackets. An installation and bearing bracket is fixedly connected to the middle of the lower side of the movable main bracket. A lifting load-bearing member is installed at the bottom of the installation and bearing bracket through a connecting member. Multiple fixing holes are provided at the bottom of the lifting load-bearing member.

[0012] Preferably, the side fixing brackets are symmetrically distributed on both sides of the movable main bracket. The side fixing brackets and the movable main bracket are combined to form a trapezoidal cross-section. The movable main bracket is fixedly connected to the second turntable. At the same time, a reinforcing rib is provided at the connection between the movable main bracket and the second turntable. The lifting load-bearing member is in an inverted T shape.

[0013] Preferably, multiple groups of installation holes for installing the lifting steel cables are provided at the bottom of the side fixing brackets. The central fixed pipe of the installation and bearing bracket is distributed in a crosswise manner with respect to the movable main bracket. After the lifting load-bearing member is installed under the installation and bearing bracket, it is distributed in a staggered manner with respect to the movable main bracket.

[0014] Preferably, side support frames are fixedly connected to both sides of the top of the fixed main bracket. Load-bearing rotating wheels are rotatably connected inside the side support frames. A first turntable is fixedly connected to the bottom of the fixed main bracket. A second gear is rotatably connected inside the first turntable.

[0015] Preferably, the first turntable is rotatably connected to the second turntable. The power unit penetrates the fixed main bracket, enabling the first gear to be rotatably connected inside the first turntable. The first gear is meshed with the second gear. The second gears are annularly and equidistantly distributed around the first turntable. The second gears are meshed with teeth. At the same time, a chute is provided inside the second turntable. The rotating shaft in the middle of the second gear is slidably connected inside the chute inside the second turntable.

[0016] Preferably, the power unit drives the first gear to rotate, causing the first gear to drive the second gear to rotate. At this time, the second gears rotate synchronously in the same direction. Furthermore, the second gears drive the second turntable to rotate through the teeth, causing the second turntable to drive the movable main bracket to perform a horizontal turn.

[0017] Preferably, the adjustment trolley assembly includes a steel circular guide rail fixedly connected to the top of the cross beam of the gantry main body. A moving support wheel set is arranged on the top of the steel circular guide rail. The top of the moving support wheel set is fixedly connected with a vehicle body support platform. An industrial winch is installed on the top of the vehicle body support platform. At the same time, a pair of load-bearing steel cables are released from the winch and penetrate downward from the middle of the vehicle body support platform to the bottom of the vehicle body support platform.

[0018] Preferably, corresponding openings are provided at the positions of the cross beam of the gantry main body inside the steel circular guide rail. A locking structure is installed inside the moving support wheel set. The load-bearing steel cable extends downward from the opening of the cross beam of the gantry main body to the load-bearing rotating wheel, and the load-bearing steel cable is sleeved with the load-bearing rotating wheel.

[0019] Preferably, the winch inside the vehicle body support platform can pull up or move down the fixed main body bracket by winding and unwinding the load-bearing steel cable. The load-bearing steel cable passes through the load-bearing rotating wheel. The moving support wheel set at the bottom of the vehicle body support platform can move along the steel circular guide rail, so that the vehicle body support platform rotates with the center of the steel circular guide rail as the midpoint, and the vehicle body support platform drives the side support frame to rotate through the load-bearing steel cable.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] Through the cooperation of structures such as the side fixing frame and the lifting load-bearing member, the present invention facilitates the use of different lifting and fixing methods according to the size and weight of the lifting material equipment. Through the setting of the movable main body bracket, there is enough installation length range for the lifting steel cable to fix material equipment of different shapes and sizes. The side fixing frame is used to install the lifting steel cable to lift small-weight materials. The lifting load-bearing member and the fixing hole are used when lifting large-volume or large-weight material equipment to ensure the bearing capacity and stability of the gantry crane;

[0022] Through the cooperation of structures such as the lifting fixing component and the horizontal adjustment component, the present invention facilitates the adjustment of the position of the movable main body bracket when fixing the material, making the fixing position more convenient. By arranging the side fixing frames on both sides of the movable main body bracket and extending the side fixing frames outward in a trapezoidal shape, the lateral installation range of the lifting steel cable is increased. The teeth inside the second turntable drive the rotation driven by the second gear, so as to adjust the orientation of the movable main body bracket, so that the movable main body bracket can be flipped to a suitable position when the lifting steel cable is fixed on the material equipment, thereby increasing the convenience of installing the lifting steel cable;

[0023] Through the cooperation of structures such as the adjustment trolley assembly and the horizontal adjustment assembly, the present invention facilitates the adjustment of the orientations of the horizontal adjustment assembly and the lifting and fixing assembly, avoiding rubbing. The vehicle body support platform bears the weights of the horizontal adjustment assembly, the lifting and fixing assembly, and the materials. At the same time, the steel circular guide rails and the moving support wheel groups arranged at the bottom of the vehicle body support platform enable the vehicle body support platform itself to rotate as well as adjust the orientation of the fixed main body bracket, avoiding losses caused by rubbing during the ascent and movement of the fixed main body bracket, and enhancing the safety during the lifting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 is a schematic diagram of the overall adjustment trolley assembly of the present invention;

[0026] Figure 3 is a schematic diagram of the overall horizontal adjustment assembly of the present invention;

[0027] Figure 4 is a middle cross-sectional view of the horizontal adjustment assembly of the present invention;

[0028] Figure 5 is a cross-sectional view showing the connection between the horizontal adjustment assembly and the lifting and fixing assembly of the present invention;

[0029] Figure 6 is Figure 5 an enlarged view of part A in

[0030] Figure 7 is a schematic diagram of the overall lifting and fixing assembly of the present invention.

[0031] In the figure: 1, gantry main cross beam; 2, adjustment trolley assembly; 201, steel circular guide rail; 202, moving support wheel group; 203, vehicle body support platform; 204, load-bearing steel cable; 3, horizontal adjustment assembly; 301, fixed main body bracket; 302, side support frame; 303, load-bearing runner; 304, power unit; 305, first gear; 306, first turntable; 307, second gear; 4, lifting and fixing assembly; 401, movable main body bracket; 402, second turntable; 403, tooth; 404, side fixing frame; 405, installation and bearing frame; 406, lifting load-bearing member; 407, fixing hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0033] As Figures 1 to 7 shown, the present invention provides a gantry crane structure for a subway station, including a main crossbeam 1 of the gantry frame, and further including:

[0034] A lifting and fixing assembly 4, which is arranged on the lower side of the main crossbeam 1 of the gantry frame for lifting and moving materials;

[0035] A horizontal adjustment assembly 3, which is arranged between the main crossbeam 1 of the gantry frame and the lifting and fixing assembly 4 for supporting the lifting and fixing assembly 4 and controlling the lifting and fixing assembly 4 to perform a slewing operation;

[0036] An adjustment trolley assembly 2, which is arranged on the top of the main crossbeam 1 of the gantry frame for controlling the lifting and rotation of the horizontal adjustment assembly 3 and the lifting and fixing assembly 4;

[0037] Among them, the lifting and fixing assembly 4 includes a movable main body bracket 401 arranged on the lower side of the horizontal adjustment assembly 3. A second turntable 402 is fixedly connected to the middle of the upper side of the movable main body bracket 401, and teeth 403 are arranged inside the second turntable 402;

[0038] The horizontal adjustment assembly 3 includes a fixed main body bracket 301 arranged between the main crossbeam 1 of the gantry frame and the movable main body bracket 401. A power unit 304 is installed in the middle of the fixed main body bracket 301, and a first gear 305 is fixedly connected to the bottom output end of the power unit 304.

[0039] Adopt the above solution: Remove the lifting load-bearing member 406 from the installation and bearing frame 405, and then install the lifting steel cable at the installation holes of the side fixing frames 404 with appropriate distances according to the material equipment to be lifted and transported. Make the material equipment stable by distributing the lifting steel cables at the four corners. Then, the winch at the top of the vehicle body support platform 203 reels in the load-bearing steel cable 204, and the load-bearing steel cable 204 lifts the fixed main body support 301 by passing through the load-bearing runner 303. Then, move the material equipment through the movement of the gantry main beam 1. After moving to the appropriate position, adjust the movable main body support 401 according to the placement position at this time. Drive the first gear 305 to rotate through the power unit 304 inside the fixed main body support 301, make the first gear 305 drive the second gear 307 to rotate, and make the second gear 307 drive the second turntable 402 to rotate through the teeth 403, so that the movable main body support 401 rotates with the second turntable 402, and make the material equipment carried by the lifting steel cable at the bottom of the movable main body support 401 rotate synchronously, so as to rotate it to the appropriate placement state to cope with the lifting and transportation of material equipment in different states.

[0040] As Figures 5 to 7 shown, side fixing frames 404 are provided at both bottom ends of the movable main body support 401. The side fixing frames 404 are externally connected with lifting steel cables. A middle part of the lower side of the movable main body support 401 is fixedly connected with an installation and bearing frame 405. A lifting load-bearing member 406 is installed at the bottom of the installation and bearing frame 405 through a connecting member. A plurality of fixing holes 407 are formed at the bottom of the lifting load-bearing member 406.

[0041] Adopt the above solution: By setting the lifting and fixing assembly 4, it is convenient to fix and lift the material equipment. The setting of the movable main body support 401 enables the lifting steel cable to have a sufficient installation length range to fix material equipment of different shapes and sizes, thereby improving the versatility of the gantry crane. The side fixing frames 404 are used to install the lifting steel cables, the installation and bearing frame 405 is used to fix and install the lifting load-bearing member 406, and the lifting load-bearing member 406 and the fixing holes 407 are used when lifting large-volume or heavy-weight material equipment to ensure the bearing capacity and stability of the gantry crane.

[0042] As Figure 6 and Figure 7As shown in the figure, the side fixing brackets 404 are symmetrically distributed on both sides of the movable main body bracket 401. The side fixing brackets 404 and the movable main body bracket 401 are combined to form a trapezoidal cross-section. The movable main body bracket 401 is fixedly connected to the second turntable 402. At the same time, a reinforcing rib is provided at the connection between the movable main body bracket 401 and the second turntable 402. The lifting load-bearing member 406 is in an inverted T shape. Multiple groups of mounting holes for installing the lifting steel cable are provided at the bottom of the side fixing bracket 404. The central fixed pipe of the mounting carrier 405 is distributed crosswise with respect to the movable main body bracket 401. After the lifting load-bearing member 406 is installed under the mounting carrier 405, it is distributed staggeredly with the movable main body bracket 401.

[0043] Adopting the above solution: By arranging the side fixing brackets 404 on both sides of the movable main body bracket 401, and the side fixing brackets 404 extending outward into a trapezoid, thereby increasing the lateral installation range of the lifting steel cable. The inverted T shape of the lifting load-bearing member 406 enables the fixing range at the bottom of the lifting load-bearing member 406. By arranging the second turntable 402, the internal teeth 403 of the second turntable 402 drive the rotation driven by the second gear 307, thereby adjusting the orientation of the movable main body bracket 401, so that the movable main body bracket 401 can be flipped to a suitable position when the lifting steel cable is fixed on the material equipment, and when the movable main body bracket 401 moves after being lifted, the orientation can be adjusted to avoid rubbing against the wall or other equipment, and it has higher applicability and less limitation in the subway construction environment with limited space.

[0044] As Figures 3 to 6 As shown in the figure, both sides of the top of the fixed main body bracket 301 are fixedly connected with side support brackets 302. A load-bearing runner 303 is rotatably connected inside the side support brackets 302. The bottom of the fixed main body bracket 301 is fixedly connected with a first turntable 306. A second gear 307 is rotatably connected inside the first turntable 306.

[0045] Adopting the above solution: By arranging the horizontal adjustment assembly 3, the fixed main body bracket 301 bears the movable main body bracket 401, and the horizontal rotation of the movable main body bracket 401 is controlled through the cooperation of the first gear 305 and the second gear 307. The first gear 305 is driven by the power unit 304 to rotate, and then the first gear 305 drives the second gear 307 to rotate, thereby controlling the orientation of the movable main body bracket 401. The arrangement of the side support brackets 302 and the load-bearing runners 303 facilitates adjusting the trolley assembly 2 to support, pull up or lower the horizontal adjustment assembly 3, thereby controlling the vertical height of the horizontal adjustment assembly 3 and the lifting and fixing assembly 4. The first turntable 306 can support the movable main body bracket 401.

[0046] As Figures 3 to 6As shown in the figure, the first turntable 306 is rotatably connected to the second turntable 402. The power unit 304 penetrates and fixes the main body bracket 301, so that the first gear 305 is rotatably connected inside the first turntable 306. The first gear 305 is meshed with the second gear 307. The second gears 307 are annularly and equidistantly distributed around the first turntable 306. The second gear 307 is meshed with the teeth 403. At the same time, a chute is provided inside the second turntable 402, and the rotating shaft in the middle of the second gear 307 is slidably connected inside the chute inside the second turntable 402. The power unit 304 drives the first gear 305 to rotate, causing the first gear 305 to drive the second gear 307 to rotate. At this time, the second gears 307 rotate synchronously in the same direction. Furthermore, the second gear 307 drives the second turntable 402 to rotate through the teeth 403, so that the second turntable 402 drives the movable main body bracket 401 to perform a horizontal turn.

[0047] Adopting the above solution: through the rotation of the first turntable 306 and the second turntable 402, the connection enables the fixed main body bracket 301 to support the movable main body bracket 401 while the first gear 305 inside the first turntable 306 can drive the second gear 307 to rotate, so that the second gear 307 drives the second turntable 402 to rotate through the teeth 403, thereby realizing the control of the rotation of the second turntable 402. By setting a plurality of second gears 307, the force for pushing the second turntable 402 is dispersed, making the rotation of the second turntable 402 more stable. The chute provided inside the second turntable 402 can ensure the stability of the second gear 307;

[0048] When the power unit 304 drives the first gear 305 to rotate, causing the first gear 305 to drive the second gear 307 to rotate, at this time, the second gears 307 rotate synchronously in the same direction. Furthermore, the second gear 307 drives the second turntable 402 to rotate through the teeth 403, so that the second turntable 402 drives the movable main body bracket 401 to perform a horizontal turn.

[0049] As Figure 1 and Figure 2 shown in the figure, the adjustment trolley assembly 2 includes a steel circular guide rail 201 fixedly connected to the top of the cross beam of the gantry main body 1. A moving support wheel set 202 is arranged on the top of the steel circular guide rail 201. A vehicle body support platform 203 is fixedly connected to the top of the moving support wheel set 202. An industrial winch is installed on the top of the vehicle body support platform 203. At the same time, a pair of load-bearing steel cables 204 are released from the winch and penetrate downward from the middle of the vehicle body support platform 203 to the bottom of the vehicle body support platform 203. An opening corresponding to the position of the cross beam of the gantry main body 1 inside the steel circular guide rail 201 is provided. A locking structure is installed inside the moving support wheel set 202. The load-bearing steel cable 204 extends downward from the opening of the cross beam of the gantry main body 1 to the load-bearing rotating wheel 303, and the load-bearing steel cable 204 is sleeved with the load-bearing rotating wheel 303.

[0050] Adopt the above solution: By setting the adjustment trolley assembly 2, the vehicle body support platform 203 bears the weights of the horizontal adjustment assembly 3, the lifting and fixing assembly 4, and the materials. At the same time, the steel circular guide rail 201 and the moving support wheel set 202 provided at the bottom of the vehicle body support platform 203 enable the vehicle body support platform 203 itself to rotate as well as adjust the orientation of the fixed main body bracket 301, avoiding rubbing when the fixed main body bracket 301 rises and moves. The setting of the load-bearing steel cable 204 and the winch can control the up and down movement of the fixed main body bracket 301.

[0051] As Figure 1 and Figure 2 shown, the winch inside the vehicle body support platform 203 can retract and release the load-bearing steel cable 204, so that the load-bearing steel cable 204 pulls up or moves down the fixed main body bracket 301 through the load-bearing runner 303. The moving support wheel set 202 at the bottom of the vehicle body support platform 203 can move along the steel circular guide rail 201, causing the vehicle body support platform 203 to rotate with the center of the steel circular guide rail 201 as the midpoint, and enabling the vehicle body support platform 203 to drive the side support frame 302 to rotate through the load-bearing steel cable 204.

[0052] Adopt the above solution: When the winch inside the vehicle body support platform 203 can retract and release the load-bearing steel cable 204, so that the load-bearing steel cable 204 pulls up or moves down the fixed main body bracket 301 through the load-bearing runner 303. The moving support wheel set 202 at the bottom of the vehicle body support platform 203 can move along the steel circular guide rail 201, causing the vehicle body support platform 203 to rotate with the center of the steel circular guide rail 201 as the midpoint, and enabling the vehicle body support platform 203 to drive the side support frame 302 to rotate through the load-bearing steel cable 204.

[0053] Working principle and usage process of the present invention: When in use, when lifting and transporting general material equipment, the lifting load-bearing member 406 is removed from the installation and bearing frame 405 at this time. Then, according to the material equipment to be lifted and transported, the lifting steel cable is installed at the installation holes of the side fixing frames 404 at appropriate distances. By distributing the lifting steel cables at the four corners, the material equipment is kept stable. After that, the winch on the top of the vehicle body support platform 203 winds up the load-bearing steel cable 204, so that the load-bearing steel cable 204 lifts the fixed main body bracket 301 through the load-bearing runner 303. Then, the material equipment is transported and moved by the movement of the main beam 1 of the gantry frame. After moving to the appropriate position, at this time, the movable main body bracket 401 is adjusted according to the placement position. The power unit 304 inside the fixed main body bracket 301 drives the first gear 305 to rotate, so that the first gear 305 drives the second gear 307 to rotate, and the second gear 307 drives the second turntable 402 to rotate through the teeth 403, so that the movable main body bracket 401 rotates with the second turntable 402, and the material equipment carried by the lifting steel cable at the bottom of the movable main body bracket 401 rotates synchronously, so as to rotate it to the appropriate placement state;

[0054] When it is necessary to transport large-weight material equipment such as steel frames and shield machines, at this time, the lifting load-bearing member 406 is installed on the installation and bearing frame 405 through a connecting member. Then, the lifting steel cable is installed at the fixing holes 407 at the bottom of the lifting load-bearing member 406 to mainly fix and support the material equipment. At the same time, the lifting steel cable is installed at the side fixing frame 404 to assist in stabilizing and supporting. Then, lifting can be carried out to cope with the lifting and transportation of material equipment in different states.

[0055] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0056] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gantry crane structure for a subway station, including a main beam (1) of the gantry frame, characterized in that, It further includes: A lifting and fixing component (4) which is arranged on the lower side of the cross beam of the gantry main body (1) for lifting and moving materials; A horizontal adjustment component (3) which is arranged between the cross beam of the gantry main body (1) and the lifting and fixing component (4) for supporting the lifting and fixing component (4) and controlling the rotary operation of the lifting and fixing component (4); An adjustment trolley component (2) which is arranged on the top of the cross beam of the gantry main body (1) for controlling the lifting and rotation of the horizontal adjustment component (3) and the lifting and fixing component (4); Wherein, the lifting and fixing component (4) includes a movable main body bracket (401) arranged on the lower side of the horizontal adjustment component (3), the middle part of the upper side of the movable main body bracket (401) is fixedly connected with a second turntable (402), and teeth (403) are arranged inside the second turntable (402); The horizontal adjustment component (3) includes a fixed main body bracket (301) arranged between the cross beam of the gantry main body (1) and the movable main body bracket (401), a power unit (304) is installed in the middle of the fixed main body bracket (301), and a first gear (305) is fixedly connected to the output end of the bottom of the power unit (304).

2. The gantry crane structure for a subway station according to claim 1, characterized in that: Side fixing frames (404) are arranged at both ends of the bottom of the movable main body bracket (401), a lifting steel cable is externally connected to the side fixing frames (404), an installation bearing frame (405) is fixedly connected to the middle part of the lower side of the movable main body bracket (401), a lifting load-bearing member (406) is installed at the bottom of the installation bearing frame (405) through a connecting member, and a plurality of fixing holes (407) are arranged at the bottom of the lifting load-bearing member (406).

3. The gantry crane structure for a subway station according to claim 2, characterized in that: The side fixing frames (404) are symmetrically distributed on both sides of the movable main body bracket (401), the side fixing frames (404) and the movable main body bracket (401) are combined to form a trapezoidal cross section, the movable main body bracket (401) is fixedly connected with the second turntable (402), and a reinforcing rib is arranged at the connection between the movable main body bracket (401) and the second turntable (402), and the lifting load-bearing member (406) is in an inverted T shape.

4. The gantry crane structure for a subway station according to claim 2, characterized in that: Multiple groups of installation holes for installing the lifting steel cable are arranged at the bottom of the side fixing frames (404), the central fixing pipe of the installation bearing frame (405) is distributed in a crosswise manner with respect to the movable main body bracket (401), and the lifting load-bearing member (406) is distributed in a staggered manner with respect to the movable main body bracket (401) after being installed on the lower side of the installation bearing frame (405).

5. The gantry crane structure for a subway station according to claim 1, wherein: Side support frames (302) are fixedly connected to both sides of the top of the fixed main body bracket (301), load-bearing rotating wheels (303) are rotatably connected inside the side support frames (302), a first turntable (306) is fixedly connected to the bottom of the fixed main body bracket (301), and a second gear (307) is rotatably connected inside the first turntable (306).

6. The gantry crane structure for a subway station according to claim 5, characterized in that: The first turntable (306) is rotationally connected to the second turntable (402). The power unit (304) penetrates the fixed main body bracket (301), enabling the first gear (305) to be rotationally connected inside the first turntable (306). The first gear (305) is meshed and connected with the second gear (307). The second gears (307) are annularly and equidistantly distributed around the periphery of the first turntable (306). The second gear (307) is meshed and connected with the teeth (403). Meanwhile, a chute is provided inside the second turntable (402), and the rotating shaft in the middle of the second gear (307) is slidably connected inside the chute inside the second turntable (402).

7. The gantry crane structure for a subway station according to claim 5, characterized in that: The power unit (304) drives the first gear (305) to rotate, causing the first gear (305) to drive the second gear (307) to rotate. At this time, the second gears (307) rotate synchronously in the same direction. Furthermore, the second gear (307) drives the second turntable (402) to rotate through the teeth (403), causing the second turntable (402) to drive the movable main body bracket (401) to perform a horizontal turn.

8. The gantry crane structure for a subway station according to claim 1, characterized in that: The adjustment trolley assembly (2) includes a steel circular guide rail (201) fixedly connected to the top of the cross beam of the gantry main body (1). A moving support wheel set (202) is arranged on the top of the steel circular guide rail (201). A vehicle body support platform (203) is fixedly connected to the top of the moving support wheel set (202). An industrial winch is installed on the top of the vehicle body support platform (203). Meanwhile, a pair of load-bearing steel cables (204) are released by the winch and penetrate downward from the middle of the vehicle body support platform (203) to the bottom of the vehicle body support platform (203).

9. The gantry crane structure for a subway station according to claim 8, characterized in that: An opening corresponding to the position of the steel circular guide rail (201) is provided inside the cross beam of the gantry main body (1). A locking structure is installed inside the moving support wheel set (202). The load-bearing steel cable (204) extends downward from the opening of the cross beam of the gantry main body (1) to the load-bearing rotating wheel (303), and the load-bearing steel cable (204) is sleeved with the load-bearing rotating wheel (303).

10. The gantry crane structure for a subway station according to claim 9, characterized in that: The winch inside the vehicle body support platform (203) can pull up or lower the fixed main body bracket (301) by winding and unwinding the load-bearing steel cable (204), enabling the load-bearing steel cable (204) to pass through the load-bearing rotating wheel (303). The moving support wheel set (202) at the bottom of the vehicle body support platform (203) can move along the steel circular guide rail (201), causing the vehicle body support platform (203) to rotate with the center of the steel circular guide rail (201) as the midpoint, and enabling the vehicle body support platform (203) to drive the side support frame (302) to rotate through the load-bearing steel cable (204).

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