Large-span steel structure hoisting supporting device
By designing a multi-degree-of-freedom hoisting support device, the problem of low degree of freedom in the hoisting and positioning support of large-span steel structures was solved, enabling precise positioning and flexible adaptation to steel structures of different specifications and sizes, and improving the adaptability of construction.
Patent Information
- Application Number
- CN202520417190.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-11
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-03-11
AI Technical Summary
Existing large-span steel structure hoisting and positioning supports have low degree of freedom, poor versatility, and are difficult to adapt to limited construction space.
A multi-degree-of-freedom support device was designed, comprising a longitudinal movement component, a support base, a turntable, a turntable, a rotary drive mechanism, a lifting component, a support platform, a transverse movement component, and a guide rod. Through the combined use of the longitudinal movement, rotation, lifting, and transverse movement components, precise positioning of the main arch of a large-span steel structure can be achieved.
It achieves multi-degree-of-freedom support, can adapt to large-span steel structures of different specifications and sizes, and improves the flexibility and adaptability of construction.
Smart Images
Figure CN223838618U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of large-span steel structure support technology, specifically to a large-span steel structure hoisting support device. Background Technology
[0002] Large-span steel structures are mainly used in public buildings such as theaters, exhibition halls, and stadiums. They are characterized by their large span and unique design. Large-span steel structures include planar structural systems and spatial structural systems. Planar structures include beam structures (planar trusses and spatial trusses), planar steel frames, and arch structures. Spatial structures include space frame structures, grid shell structures, suspension structures, and tensioned monolithic structures. Arch structures within planar structures are characterized by their large main arch span and inclined plane. The main arch forms an angle with the ground, making positioning and control difficult. Angled positioning supports must be installed in two directions according to the main arch's inclination angle to ensure accurate positioning. Currently, existing large-span steel structure hoisting and positioning supports suffer from low freedom of movement, poor versatility, and difficulty adapting to limited construction space. Utility Model Content
[0003] The purpose of this invention is to solve the problems of low degree of freedom, poor versatility, and difficulty in adapting to limited construction space in existing large-span steel structure hoisting and positioning supports, and to provide a large-span steel structure hoisting support device.
[0004] The technical solution of this utility model is:
[0005] This utility model provides a large-span steel structure hoisting support device, which includes a longitudinal moving component 1, a support base 2, a turntable 3, a turntable 4, a rotary drive mechanism 5, a lifting component 6, a support platform 7, a transverse moving component 8, a positioning support 9, and two guide rods 10. The longitudinal moving component 1 is horizontally arranged, and the support base 2 is provided above the longitudinal moving component 1. The bottom of the support base 2 is connected to the moving end of the longitudinal moving component 1. The turntable 3 is installed in the middle of the support base 2, and the movable end of the turntable 3 is fixedly connected to the turntable 4 arranged horizontally and coaxially above it. The side of the turntable 4 is connected to... A rotary drive mechanism 5 is provided. A vertically arranged lifting component 6 is installed on the upper end of the turntable 4. A horizontally arranged support platform 7 is provided above the lifting component 6. The bottom of the support platform 7 is connected to the movable end of the lifting component 6. Two symmetrically arranged guide holes are opened on the support platform 7. Two vertically arranged guide rods 10 are slidably inserted into the two guide holes. The lower ends of the two guide rods 10 are installed on the turntable 4. A transverse component 8 is provided on the upper part of the support platform 7. The movable end of the transverse component 8 is connected to a positioning support 9. A V-shaped groove is opened in the middle of the upper end of the positioning support 9.
[0006] Further, the longitudinal movement assembly 1 includes a longitudinal movement fixed plate 101, a longitudinal movement movable plate 102, a longitudinal movement linear module 103, and two sets of longitudinal movement linear guides 104. The longitudinal movement fixed plate 101 and the longitudinal movement movable plate 102 are arranged horizontally opposite each other. A longitudinal movement linear module 103, arranged horizontally along the length of the device, is provided between the longitudinal movement fixed plate 101 and the longitudinal movement movable plate 102. The longitudinal movement linear module 103 includes a longitudinal movement motor 105 and a longitudinal movement lead screw pair 106. The lead screw end of the longitudinal movement lead screw pair 106 is connected via... The coupling is connected to the shaft of the longitudinal movement motor 105. The longitudinal movement motor 105 is mounted on the upper surface of the longitudinal movement movable plate 102. The nut of the longitudinal movement lead screw pair 106 is fixedly connected to the lower surface of the longitudinal movement movable plate 102 through a connector. Two sets of longitudinal movement linear guide rails 104 are arranged in parallel on the left and right sides of the longitudinal movement linear module 103. The slide rail of each set of longitudinal movement linear guide rails 104 is mounted on the upper surface of the longitudinal movement fixed plate 101. A slider is slidably mounted on the slide rail. The slide rail is fixedly connected to the lower surface of the longitudinal movement movable plate 102.
[0007] Furthermore, the support base 2 is a steel frame structure. The support base 2 includes an upper base plate 201, a lower base plate 202 and multiple uprights 203. The upper base plate 201 and the lower base plate 202 are arranged horizontally opposite each other, and the upper base plate 201 and the lower base plate 202 are connected by multiple vertically arranged uprights 203.
[0008] Furthermore, the turntable 3 includes a turntable connecting shaft 301, a sleeve 302, and a connecting shaft support bearing. A rotating shaft mounting hole is opened in the center of the upper seat plate 201. A vertically arranged turntable connecting shaft 301 is provided below the turntable 4. The upper end of the turntable connecting shaft 301 passes through the rotating shaft mounting hole of the upper seat plate 201 and is fixedly connected to the center of the lower surface of the turntable 4. A sleeve 302 is coaxially arranged on the lower part of the turntable connecting shaft 301. The sleeve 302 is rotatably connected to the turntable connecting shaft 301 through the connecting shaft support bearing. The lower end of the sleeve 302 is installed on the upper surface of the lower seat plate 202.
[0009] Furthermore, the rotary drive mechanism 5 includes a rotary motor 501, a rotary motor mounting bracket 502, a drive gear 503, and a transmission gear ring 504. The rotary motor 501 is vertically mounted on the side of the support base 2. The housing of the rotary motor 501 is mounted on the rotary motor mounting bracket 502, which is mounted on the upright 203. The drive gear 503 is mounted on the rotating shaft of the rotary motor 501. The turntable 4 has a circular plate structure, and the transmission gear ring 504 is sleeved on the side of the turntable 4. The transmission gear ring 504 is fixedly connected to the turntable 4 by fasteners, and the transmission gear ring 504 meshes with the drive gear 503.
[0010] Furthermore, the lifting assembly 6 includes a lifting cylinder 601, an L-shaped connecting block 602, and a lifting bracket 603. The lifting cylinder 601 is vertically arranged above the turntable 4. The L-shaped connecting block 602 is installed on the upper end of the cylinder body of the lifting cylinder 601. One end of the L-shaped connecting block 602 has a piston rod mounting hole, and the other end of the L-shaped connecting block 602 is installed on the lifting bracket 603. The lifting bracket 603 is installed on the turntable 4. The upper end of the piston rod of the lifting cylinder 601 passes through the piston rod mounting hole of the L-shaped connecting block 602 and is connected to the support platform 7 through a connector.
[0011] Furthermore, the transverse movement assembly 8 includes a transverse movement motor 801, a transverse movement screw pair 802, and a transverse movement guide post 803. A through groove is formed on the upper surface of the support platform 7, extending through the front and rear ends of the platform. A positioning support 9 is slidably connected in the through groove. The transverse movement screw pair 802 is provided below the positioning support 9. The nut of the transverse movement screw pair 802 is fixedly connected to the positioning support 9 through a connecting block. A transverse movement motor 801 is coaxially arranged on the side of the transverse movement screw pair 802. The housing of the transverse movement motor 801 is installed on the side of the support platform 7. The shaft of the transverse movement motor 801 is fixedly connected to the screw of the transverse movement screw pair 802 through a coupling. A transverse movement guide post 803 is arranged in parallel above the transverse movement screw pair 802. Both ends of the transverse movement guide post 803 are fixedly connected to the support platform 7. A support connection hole is provided on the positioning support 9. The middle part of the transverse movement guide post 803 is slidably inserted into the support connection hole of the positioning support 9.
[0012] Compared with the prior art, the present invention has the following advantages:
[0013] This utility model's large-span steel structure hoisting support device is a multi-degree-of-freedom support device, capable of simultaneously supporting various large-span steel structure main arches of different specifications and sizes, and better adaptable to construction space. The longitudinal movement component 1 of this utility model is used to realize the longitudinal movement freedom of the device. The longitudinal movement motor 105 drives the lead screw to rotate, causing the longitudinal movement movable plate 102 to move along the slide rail. The rotary drive mechanism 5 is used to realize the rotational freedom of the device. The rotary motor 501 drives the drive gear 503 to rotate, which in turn drives the turntable 4 to rotate smoothly relative to the support base 2 through the transmission gear ring 504. The lifting component 6 is used to realize the lifting freedom of the device. The piston rod of the lifting cylinder 601 extends, causing the support platform 7 to move upward; the piston rod of the lifting cylinder 601 retracts, causing the support platform 7 to move downward. The transverse movement component 8 is used to realize the transverse movement freedom of the device. The transverse movement motor 801 drives the lead screw of the transverse movement lead screw pair 802 to rotate, thereby causing the positioning support 9 to move laterally along the transverse movement guide column 803. Attached Figure Description
[0014] Figure 1 This is a front view of the large-span steel structure hoisting support device of this utility model;
[0015] Figure 2This is a side view of the large-span steel structure hoisting support device of this utility model;
[0016] Figure 3 yes Figure 1 A magnified view of a portion at point A.
[0017] In the picture:
[0018] 1. Longitudinal movement assembly; 2. Support base; 3. Turntable; 4. Turntable; 5. Rotary drive mechanism; 6. Lifting assembly; 7. Support platform; 8. Lateral movement assembly; 9. Positioning support; 10. Guide rod; 101. Longitudinal movement fixed plate; 102. Longitudinal movement movable plate; 103. Longitudinal movement linear module; 104. Longitudinal movement linear guide rail; 201. Upper base plate; 202. Lower base plate; 203. Upright pole; 301. Turntable connecting shaft; 302. Sleeve; 501. Rotary motor; 502. Rotary motor mounting bracket; 503. Drive gear; 504. Transmission gear ring; 601. Lifting cylinder; 602. L-shaped connecting block; 603. Lifting bracket; 801. Lateral movement motor; 802. Lateral movement lead screw pair; 803. Lateral movement guide column. Detailed Implementation
[0019] Specific implementation method one: Combining Figure 1 and Figure 3 This embodiment describes a large-span steel structure hoisting support device, which includes a longitudinal movement component 1, a support base 2, a turntable 3, a turntable 4, a rotary drive mechanism 5, a lifting component 6, a support platform 7, a transverse movement component 8, a positioning support 9, and two guide rods 10. The longitudinal movement component 1 is horizontally arranged, and the support base 2 is located above the longitudinal movement component 1. The bottom of the support base 2 is connected to the moving end of the longitudinal movement component 1. The turntable 3 is installed in the middle of the support base 2, and the movable end of the turntable 3 is fixedly connected to the turntable 4, which is coaxially arranged horizontally above it. The rotary drive mechanism 5 is connected to the turntable 4. A vertically arranged lifting component 6 is installed on the upper end of the turntable 4. A horizontally arranged support platform 7 is provided above the lifting component 6. The bottom of the support platform 7 is connected to the movable end of the lifting component 6. Two symmetrically arranged guide holes are opened on the support platform 7. Two vertically arranged guide rods 10 are slidably inserted into the two guide holes. The lower ends of the two guide rods 10 are installed on the turntable 4. A transverse component 8 is provided on the upper part of the support platform 7. The movable end of the transverse component 8 is connected to the positioning support 9. A V-shaped groove is opened in the middle of the upper end of the positioning support 9.
[0020] Specific Implementation Method Two: Combining Figure 1 and Figure 3This embodiment describes a longitudinal movement assembly 1, which includes a longitudinal movement fixed plate 101, a longitudinal movement movable plate 102, a longitudinal movement linear module 103, and two sets of longitudinal movement linear guides 104. The longitudinal movement fixed plate 101 and the longitudinal movement movable plate 102 are arranged horizontally opposite each other. The longitudinal movement linear module 103, arranged horizontally along the length of the device, is provided between the longitudinal movement fixed plate 101 and the longitudinal movement movable plate 102. The longitudinal movement linear module 103 includes a longitudinal movement motor 105 and a longitudinal movement lead screw pair 106. The lead screw of the longitudinal movement lead screw pair 106... The end is connected to the shaft of the longitudinal movement motor 105 via a coupling. The longitudinal movement motor 105 is mounted on the upper surface of the longitudinal movement movable plate 102. The nut of the longitudinal movement lead screw pair 106 is fixedly connected to the lower surface of the longitudinal movement movable plate 102 via a connector. Two sets of parallel longitudinal movement linear guides 104 are respectively provided on the left and right sides of the longitudinal movement linear module 103. The slide rail of each set of longitudinal movement linear guides 104 is mounted on the upper surface of the longitudinal movement fixed plate 101, and a slider is slidably mounted on the slide rail. The slide rail is fixedly connected to the lower surface of the longitudinal movement movable plate 102. With this configuration, the longitudinal movement assembly 1 is used to realize the longitudinal movement freedom of the device. The longitudinal movement motor 105 drives the lead screw to rotate, causing the longitudinal movement movable plate 102 to move along the slide rail. Other components and connections are the same as in specific embodiment one.
[0021] Specific implementation method three: Combining Figure 1 and Figure 3 In this embodiment, the support base 2 is a steel frame structure. The support base 2 includes an upper base plate 201, a lower base plate 202, and multiple vertical supports 203. The upper base plate 201 and lower base plate 202 are arranged horizontally opposite each other, and are connected by the multiple vertically arranged supports 203. This configuration supports the turntable 4 and the lifting assembly 6, support platform 7, lateral movement assembly 8, positioning support 9, and two guide rods 10 mounted on it. The support base 2 uses a frame mechanism, which, while meeting the strength requirements, also reduces weight. Other components and connections are the same as in specific embodiments one or two.
[0022] Specific implementation method four: Combination Figure 1 and Figure 3This embodiment describes a turntable 3 comprising a turntable connecting shaft 301, a sleeve 302, and a connecting shaft support bearing. A rotating shaft mounting hole is formed at the center of the upper base plate 201. A vertically arranged turntable connecting shaft 301 is positioned below the turntable 4. The upper end of the turntable connecting shaft 301 passes through the rotating shaft mounting hole in the upper base plate 201 and is fixedly connected to the center of the lower surface of the turntable 4. A coaxially arranged sleeve 302 is fitted onto the lower part of the turntable connecting shaft 301. The sleeve 302 is rotatably connected to the turntable connecting shaft 301 via the connecting shaft support bearing. The lower end of the sleeve 302 is mounted on the upper surface of the lower base plate 202. With this configuration, the turntable 3 connects the turntable 4 and the lower base plate 202, allowing the turntable 4 to rotate smoothly relative to the support base 2 under the drive of the rotational drive mechanism 5. Other components and connections are the same as in specific embodiments one, two, or three.
[0023] Specific Implementation Method Five: Combining Figure 1 and Figure 3 This embodiment describes a rotary drive mechanism 5 comprising a rotary motor 501, a rotary motor mounting bracket 502, a drive gear 503, and a transmission gear ring 504. The rotary motor 501 is vertically mounted on the side of the support base 2. The housing of the rotary motor 501 is mounted on the rotary motor mounting bracket 502, which is mounted on a vertical rod 203. The drive gear 503 is mounted on the shaft of the rotary motor 501. The turntable 4 is a circular plate structure, and the transmission gear ring 504 is fitted onto the side of the turntable 4. The transmission gear ring 504 is fixedly connected to the turntable 4 by fasteners and meshes with the drive gear 503. This configuration allows the rotary drive mechanism 5 to achieve the rotational freedom of the device. The rotary motor 501 drives the drive gear 503 to rotate, which in turn drives the turntable 4 to rotate smoothly relative to the support base 2 via the transmission gear ring 504. Other components and connections are the same as in specific embodiments one, two, three, or four.
[0024] Specific Implementation Method Six: Combination Figure 1 and Figure 3 This embodiment describes the lifting assembly 6, which includes a lifting cylinder 601, an L-shaped connecting block 602, and a lifting bracket 603. The lifting cylinder 601 is vertically arranged above the turntable 4. The L-shaped connecting block 602 is mounted on the upper end of the cylinder body of the lifting cylinder 601. One end of the L-shaped connecting block 602 has a piston rod mounting hole, and the other end is mounted on the lifting bracket 603, which is mounted on the turntable 4. The upper end of the piston rod of the lifting cylinder 601 passes through the piston rod mounting hole of the L-shaped connecting block 602 and is connected to the support platform 7 through a connector. This configuration allows the lifting assembly 6 to achieve the lifting freedom of the device. When the piston rod of the lifting cylinder 601 extends, it moves the support platform 7 upward; when the piston rod of the lifting cylinder 601 retracts, it moves the support platform 7 downward. Other components and connections are the same as in specific embodiments one, two, three, four, or five.
[0025] Specific implementation method seven: Combination Figure 1 and Figure 3 This embodiment describes a transverse movement assembly 8 comprising a transverse movement motor 801, a transverse movement lead screw pair 802, and a transverse movement guide post 803. A through groove extending through the front and rear ends of the support platform 7 is formed on its upper surface. A positioning support 9 is slidably connected in the through groove. The transverse movement lead screw pair 802 is located below the positioning support 9. The nut of the transverse movement lead screw pair 802 is fixedly connected to the positioning support 9 via a connecting block. A transverse movement motor 801 is coaxially arranged on the side of the transverse movement lead screw pair 802. The housing of the transverse movement motor 801 is mounted on the side of the support platform 7. The shaft of the transverse movement motor 801 is fixedly connected to the screw of the transverse movement lead screw pair 802 via a coupling. A parallel transverse movement guide post 803 is arranged above the transverse movement lead screw pair 802. Both ends of the transverse movement guide post 803 are fixedly connected to the support platform 7. A support connection hole is formed on the positioning support 9, and the middle part of the transverse movement guide post 803 is slidably inserted into the support connection hole of the positioning support 9. With this configuration, the lateral movement component 8 is used to realize the lateral movement degree of freedom of the device. The lateral movement motor 801 drives the lead screw of the lateral movement screw pair 802 to rotate, thereby driving the positioning support 9 to move laterally along the lateral movement guide post 803. Other components and connections are the same as in specific embodiments one, two, three, four, five, or six.
[0026] Working principle
[0027] Combination Figure 1 and Figure 3 The working principle of this utility model's large-span steel structure hoisting support device is as follows: This device can be used alone or in combination, depending on the on-site construction requirements. Before use, the hoisting plan is determined according to the dimensions and specifications of the main arch of the large-span steel structure. When the main arch needs to be moved longitudinally, the longitudinal movement motor 105 drives the lead screw to rotate, causing the longitudinal movement movable plate 102 to move along the slide rail. When the main arch needs to be rotated, the rotary motor 501 drives the drive gear 503 to rotate, which in turn drives the turntable 4 to rotate smoothly relative to the support base 2 through the transmission gear ring 504. When the main arch needs to be raised or lowered, the piston rod of the lifting cylinder 601 extends or retracts, causing the support platform 7 to move up or down. When the main arch needs to be moved laterally, the transverse movement motor 801 drives the lead screw of the transverse movement lead screw pair 802 to rotate, thereby causing the positioning support 9 to move laterally along the transverse movement guide column 803.
[0028] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A large-span steel structure hoisting support device, characterized in that: It includes a longitudinal moving assembly (1), a support base (2), a turntable (3), a turntable (4), a rotary drive mechanism (5), a lifting assembly (6), a support platform (7), a transverse moving assembly (8), a positioning support (9), and two guide rods (10). The longitudinal moving assembly (1) is arranged horizontally, and a support base (2) is provided above the longitudinal moving assembly (1). The bottom of the support base (2) is connected to the moving end of the longitudinal moving assembly (1). A turntable (3) is installed in the middle of the support base (2). The movable end of the turntable (3) is fixedly connected to the turntable (4) arranged horizontally and coaxially above. The rotary drive mechanism is connected to the side of the turntable (4). 5) A vertically arranged lifting assembly (6) is installed on the upper end of the turntable (4). A horizontally arranged support platform (7) is provided above the lifting assembly (6). The bottom of the support platform (7) is connected to the movable end of the lifting assembly (6). Two symmetrically arranged guide holes are opened on the support platform (7). Two vertically arranged guide rods (10) are slidably inserted into the two guide holes. The lower ends of the two guide rods (10) are installed on the turntable (4). A transverse moving assembly (8) is provided on the upper part of the support platform (7). The movable end of the transverse moving assembly (8) is connected to the positioning support (9). A V-shaped groove is opened in the middle of the upper end of the positioning support (9).
2. The large-span steel structure hoisting support device according to claim 1, characterized in that: The longitudinal movement assembly (1) includes a longitudinal movement fixed plate (101), a longitudinal movement movable plate (102), a longitudinal movement linear module (103), and two sets of longitudinal movement linear guides (104). The longitudinal movement fixed plate (101) and the longitudinal movement movable plate (102) are arranged horizontally opposite each other. A longitudinal movement linear module (103) is arranged horizontally along the length of the device between the longitudinal movement fixed plate (101) and the longitudinal movement movable plate (102). The longitudinal movement linear module (103) includes a longitudinal movement motor (105) and a longitudinal movement lead screw pair (106). The lead screw end of the longitudinal movement lead screw pair (106) is connected to the longitudinal movement motor. The longitudinal movement motor (105) is connected to the shaft of the longitudinal movement motor (105) via a coupling. The longitudinal movement motor (105) is mounted on the upper surface of the longitudinal movement movable plate (102). The nut of the longitudinal movement screw pair (106) is fixedly connected to the lower surface of the longitudinal movement movable plate (102) via a connector. Two sets of longitudinal movement linear guides (104) are arranged in parallel on the left and right sides of the longitudinal movement linear module (103). The slide rail of each set of longitudinal movement linear guides (104) is mounted on the upper surface of the longitudinal movement fixed plate (101). A slider is slidably mounted on the slide rail. The slide rail is fixedly connected to the lower surface of the longitudinal movement movable plate (102).
3. A large-span steel structure hoisting support device according to claim 1 or 2, characterized in that: The support base (2) is a steel frame structure. The support base (2) includes an upper base plate (201), a lower base plate (202) and multiple uprights (203). The upper base plate (201) and the lower base plate (202) are arranged horizontally opposite each other. The upper base plate (201) and the lower base plate (202) are connected by multiple vertically arranged uprights (203).
4. The large-span steel structure hoisting support device according to claim 3, characterized in that: The turntable (3) includes a turntable connecting shaft (301), a sleeve (302) and a connecting shaft support bearing. A rotating shaft mounting hole is opened in the center of the upper seat plate (201). A vertically arranged turntable connecting shaft (301) is provided below the turntable (4). The upper end of the turntable connecting shaft (301) passes through the rotating shaft mounting hole of the upper seat plate (201) and is fixedly connected to the center of the lower surface of the turntable (4). A sleeve (302) is coaxially arranged on the lower part of the turntable connecting shaft (301). The sleeve (302) and the turntable connecting shaft (301) are rotatably connected through the connecting shaft support bearing. The lower end of the sleeve (302) is installed on the upper surface of the lower seat plate (202).
5. The large-span steel structure hoisting support device according to claim 4, characterized in that: The rotary drive mechanism (5) includes a rotary motor (501), a rotary motor mounting bracket (502), a drive gear (503), and a transmission gear ring (504). The rotary motor (501) is vertically mounted on the side of the support base (2). The housing of the rotary motor (501) is mounted on the rotary motor mounting bracket (502). The rotary motor mounting bracket (502) is mounted on the upright (203). The drive gear (503) is mounted on the rotating shaft of the rotary motor (501). The turntable (4) is a circular plate structure. The transmission gear ring (504) is sleeved on the side of the turntable (4). The transmission gear ring (504) is fixedly connected to the turntable (4) by fasteners. The transmission gear ring (504) meshes with the drive gear (503).
6. The large-span steel structure hoisting support device according to claim 5, characterized in that: The lifting assembly (6) includes a lifting cylinder (601), an L-shaped connecting block (602), and a lifting bracket (603). The lifting cylinder (601) is vertically arranged above the turntable (4). The L-shaped connecting block (602) is installed on the upper end of the cylinder body of the lifting cylinder (601). One end of the L-shaped connecting block (602) has a piston rod mounting hole, and the other end of the L-shaped connecting block (602) is installed on the lifting bracket (603). The lifting bracket (603) is installed on the turntable (4). The upper end of the piston rod of the lifting cylinder (601) passes through the piston rod mounting hole of the L-shaped connecting block (602) and is connected to the support platform (7) through a connector.
7. The large-span steel structure hoisting support device according to claim 6, characterized in that: The traverse assembly (8) includes a traverse motor (801), a traverse lead screw pair (802), and a traverse guide column (803). A through slot is formed on the upper surface of the support platform (7) extending through the front and rear ends of the platform. A positioning support (9) is slidably connected in the through slot. The traverse lead screw pair (802) is provided below the positioning support (9). The nut of the traverse lead screw pair (802) is fixedly connected to the positioning support (9) through a connecting block. A traverse motor (801) is coaxially arranged on the side of the traverse lead screw pair (802). The housing of the transverse motor (801) is installed on the side of the support platform (7). The shaft of the transverse motor (801) is fixedly connected to the screw of the transverse lead screw pair (802) through a coupling. A transverse guide column (803) is arranged in parallel above the transverse lead screw pair (802). The two ends of the transverse guide column (803) are fixedly connected to the support platform (7). A support connection hole is opened on the positioning support (9). The middle part of the transverse guide column (803) is slidably inserted into the support connection hole of the positioning support (9).