Novel high-altitude hoisting device for bolt-sphere net rack structure

Abstract

The utility model discloses a novel bolt spherical net rack structure high altitude hoist device relates to long -span space steel structure construction technical field, including hoisting main body, moving mechanism and hoist mechanism, hoist mechanism includes main hoist, main lifting hook, steel wire rope and a plurality of fixed pulley, and the main hoist sets up in the end of hoisting main body, and the main hoist is connected with main lifting hook through steel wire rope, and a plurality of fixed pulley are set up on the first end of hoisting main body and hoisting main body respectively, and fixed pulley is used for guiding the path of steel wire rope, moving mechanism sets up at the bottom of hoisting main body, is used for the position control of hoisting main body, the utility model discloses directly fixed in having installed the net rack on hoisting device, makes steel wire rope effective working length shorten to 0.5 2 meters, far less than the 10 meters above of traditional equipment, fundamentally reduces the swing amplitude of the pole piece in high altitude, creates basic condition for fast, accurate alignment.

Description

Technical Field

[0001] This utility model relates to the field of construction technology for large-span spatial steel structures, and in particular to a novel high-altitude hoisting device for bolted ball grid structures. Background Technology

[0002] Bolted ball joint space frame is a new type of roof load-bearing structure with advantages such as convenient and quick installation, beautiful appearance, short installation period, and light weight. It is suitable for large-scale stadiums, exhibition halls, cinemas, and other engineering projects. Currently, the construction methods for hoisting large-span bolted ball steel space frame structures are mainly divided into two types: integral hoisting and high-altitude assembly. Due to limitations in member length, specifications, construction site, and project cost, most projects adopt a combination of integral hoisting of individual sections and partial high-altitude assembly.

[0003] When performing partial high-altitude assembly work, the common method is to use lifting equipment such as tower cranes and truck cranes to transport the components to the vicinity of the installation location, and then construction workers manually support the components to complete the alignment and installation. Because the wire ropes of the lifting equipment are usually quite long (generally over 10 meters), the components are prone to significant swaying at high altitudes, especially under wind conditions. This swaying makes it difficult to accurately position the components, requiring construction workers to spend considerable time and effort stabilizing and aligning them. The alignment process typically requires multiple workers to manually adjust the positions of both ends of the component, aligning the sleeves at the ends with the bolt holes. This process is not only inefficient but also poses significant safety risks.

[0004] Therefore, in response to the above phenomenon, a novel bolted ball grid structure high-altitude hoisting device is proposed to meet the needs of practical use. Utility Model Content

[0005] This utility model provides a novel high-altitude hoisting device for bolted ball grid structure, which solves the technical problem that the poles are prone to large-amplitude swaying at high altitudes.

[0006] To solve the above-mentioned technical problems, this utility model provides a novel high-altitude hoisting device for a bolted ball grid structure, including a hoisting body, a moving mechanism, and a winching mechanism; the winching mechanism includes a main winch, a main hook, a wire rope, and several fixed pulleys; the main winch is located at the end of the hoisting body and is connected to the main hook via the wire rope; several fixed pulleys are respectively located at the beginning of the hoisting body and on the hoisting body, and the fixed pulleys are used to guide the path of the wire rope; the moving mechanism is located at the bottom of the hoisting body and is used for position control of the hoisting body.

[0007] Preferably, the lifting body includes horizontal steel pipes, inclined steel pipes, and several reinforcing bars; the number of horizontal steel pipes and the number of inclined steel pipes are both three, the first end of the horizontal steel pipe is connected to the bottom end of the inclined steel pipe, the top ends of the three inclined steel pipes are connected to each other, and the several reinforcing bars are arranged in the space enclosed by the horizontal steel pipes and the inclined steel pipes, and the two ends of the several reinforcing bars are respectively welded and fixed to the adjacent horizontal steel pipes or the inclined steel pipes.

[0008] Preferably, the moving mechanism includes a drive motor, a sprocket assembly, a drive axle, a driven axle, and a braking assembly; the drive motor is located at the end of the hoisting body; the drive axle includes a first horizontal fork and two drive wheels, the two drive wheels being respectively located at both ends of the first horizontal fork, and the first horizontal fork being located at the bottom of the hoisting body; the driven axle includes a second horizontal fork and two driven wheels; the two driven wheels are respectively located at both ends of the second horizontal fork, and the second horizontal fork being located at the bottom of the hoisting body; the output end of the drive motor drives at least one of the drive wheels to rotate through the sprocket assembly.

[0009] Preferably, the moving mechanism further includes a position fine-tuning component; the position fine-tuning component includes a fixing plate with an elongated slot, and the second flat fork is connected to the elongated slot of the fixing plate by bolts.

[0010] Preferably, both the driving wheel and the driven wheel have grooves on their surfaces that match the space frame members.

[0011] Preferably, the distance between the driving wheel and the driven wheel is equal to the spacing between adjacent space frame members.

[0012] Preferably, the braking assembly includes a brake caliper and a brake disc that matches the brake caliper, the brake disc being connected to any of the drive wheels, and the brake caliper being disposed at the end of the first flat fork.

[0013] Preferably, an electrical control box is provided at the end of the hoisting body.

[0014] Preferably, the winch mechanism further includes an auxiliary winch and an auxiliary hook, wherein the auxiliary winch is connected to the auxiliary hook via the wire rope.

[0015] Compared with related technologies, the novel bolted ball grid structure high-altitude hoisting device provided by this utility model has the following beneficial effects:

[0016] This utility model provides a novel high-altitude hoisting device for bolted ball space frame structures. By directly fixing the hoisting device to the installed space frame, the effective working length of the wire rope is shortened to 0.5-2 meters, far less than the 10 meters or more of traditional equipment. This fundamentally reduces the swaying amplitude of the members at high altitudes, creating a foundation for rapid and precise alignment. The position fine-tuning component can adapt to different spacings of space frame members, and the coordinated control of dual winches can assist in adjusting the posture of the members. These designs allow for more accurate and faster alignment of the two ends of the members with the bolt ball holes, reducing the time and manpower spent on repeated adjustments. The device has autonomous walking capability, allowing it to move smoothly along the space frame members to different work positions. After completing the installation of one node, it can be quickly moved to the next position without disassembly, realizing continuous high-altitude assembly operations and significantly improving overall construction efficiency.

[0017] The device is securely locked to the truss members via a braking assembly, providing a stable high-altitude working platform for construction workers. Simultaneously, the short sling design reduces the possibility of uncontrolled swinging of the members, fundamentally lowering the risk of components or tools falling. The lifting, horizontal movement, and coarse positioning of the members are all completed mechanically; construction workers only need to perform final fine alignment and bolt tightening. This greatly reduces the physical burden and fatigue risks associated with manually lifting and supporting heavy members.

[0018] A single unit can cover a large construction area, reducing the operating costs of large lifting equipment and the time costs of frequent relocations. Its structure is relatively simple, manufacturing costs are controllable, and it has wide applicability and good prospects for promotion in various bolted ball space frame projects. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ;

[0020] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ;

[0021] Figure 3 This is a schematic diagram of the braking component structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the position fine-tuning component structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the structure of Embodiment 2 of this utility model;

[0024] Figure 6 This is a schematic diagram of the structure of Embodiment 3 of this utility model.

[0025] Numbered in the diagram: 1. Lifting body; 11. Horizontal steel pipe; 12. Reinforcing steel bar; 13. Inclined steel pipe; 2. Moving mechanism; 21. Drive motor; 22. Sprocket assembly; 23. First horizontal fork; 24. Drive wheel; 25. Roller groove; 26. Position fine-tuning assembly; 261. Fixed plate; 262. Long groove; 27. Braking assembly; 271. Brake caliper; 272. Brake disc; 28. Second horizontal fork; 29. ​​Driven wheel; 3. Winching mechanism; 31. Main winch; 32. Fixed pulley; 33. Main hook; 34. Auxiliary winch; 35. Auxiliary hook; 4. Electrical control box. Detailed Implementation

[0026] The above-mentioned and other technical features and advantages of this utility model will be described in more detail below with reference to the accompanying drawings.

[0027] Example 1

[0028] like Figure 1 As shown, this embodiment provides a novel bolted ball grid structure high-altitude hoisting device, including a gun-type hoisting body 1, a moving mechanism 2, a winch mechanism 3, and an electrical control box 4.

[0029] The hoisting body 1 is welded from three horizontal steel pipes 11, three inclined steel pipes 13, and several reinforcing steel bars 12, forming a cannon-shaped grid-like load-bearing structure. The three horizontal steel pipes 11 are arranged in a triangular pattern at the bottom of the hoisting body 1. The three inclined steel pipes 13 extend upwards from the first end of each horizontal steel pipe 11, and their tops converge and are welded together at the top of the hoisting body 1. Several reinforcing steel bars 12 are welded between the horizontal steel pipes 11 and the inclined steel pipes 13, as well as between adjacent horizontal steel pipes 11, to enhance the rigidity and stability of the overall structure. An electrical control box 4 is located at the end of the hoisting body 1 (i.e., the end furthest from the hook). The electrical control box 4 contains electrical components such as batteries, controllers, and circuit protection devices, providing power and control functions for the device. The purpose of placing the electrical control box 4 at the end of the hoisting body 1 is to balance the load at the front end of the hoisting body 1. When the rods are lifted, the weight at the end provides a counter-torque, maintaining the overall balance of the device.

[0030] like Figure 1 and Figure 2 As shown, the hoisting mechanism 3 includes a main winch 31, a main hook 33, a wire rope, and several fixed pulleys 32. The main winch 31 is fixedly installed at the end of the hoisting body 1, located in front of the electrical control box 4. Two fixed pulleys 32 are respectively arranged at the beginning and middle frame of the hoisting body 1. The wire rope is led out from the main winch 31, passes through these fixed pulleys 32 in sequence, and finally connects to the main hook 33. This pulley arrangement changes the direction of the wire rope, placing the lifting point in front of the hoisting body 1, which facilitates the hoisting of the rods. All fixed pulleys 32 are installed in corresponding positions on the hoisting body 1 through bearings and brackets to ensure flexible rotation.

[0031] The moving mechanism 2 is installed at the bottom of the hoisting body 1 and is used to drive the device to move and position itself on the space frame members. For example... Figure 2 As shown, the moving mechanism 2 includes a drive motor 21, a sprocket assembly 22, a drive axle, a driven axle, and a braking assembly 27.

[0032] The drive axle includes a first horizontal fork 23 and two drive wheels 24. One drive wheel 24 is mounted at each end of the first horizontal fork 23 via bearings. The middle part of the first horizontal fork 23 is bolted to the bottom of the lifting body 1 near the end.

[0033] The driven bridge includes a second horizontal fork 28 and two driven wheels 29. A driven wheel 29 is mounted at each end of the second horizontal fork 28 via bearings. The second horizontal fork 28 is connected to the bottom of the lifting body 1 near the front end via a position fine-tuning assembly 26.

[0034] The drive motor 21 is mounted at the end of the hoisting body 1, and its output shaft is connected to the axle of a drive wheel 24 via a sprocket assembly 22. The sprocket assembly 22 includes a drive sprocket mounted on the output shaft of the drive motor 21, a driven sprocket mounted on the axle of the drive wheel 24, and a chain connecting the two. When the drive motor 21 rotates, it drives the drive wheel 24 to rotate through the sprocket assembly 22, thereby propelling the entire device to move along the space frame members.

[0035] Both the drive wheel 24 and the driven wheel 29 have grooves 25 machined on their surfaces to match the cross-sectional shape of the space frame members. The curvature of the grooves 25 is adapted to the outer diameter of the space frame members, allowing the wheels to roll stably on the members and preventing deviation. The wheelbase between the drive wheel 24 and the driven wheel 29 is designed to be equal to the standard spacing between adjacent space frame members, typically 1.5 meters or 3 meters. This ensures that when the drive wheel 24 rolls on one member, the driven wheel 29 rolls precisely on the adjacent member in front or behind, providing stable support.

[0036] like Figure 3 As shown, the braking assembly 27 includes a brake caliper 271 and a brake disc 272. The brake disc 272 is fixedly mounted on the axle of the driven wheel 24 and rotates with the driven wheel 24. The brake caliper 271 is fixed to the end of the first flat fork 23 by a bracket, and its position is aligned with the brake disc 272. The brake caliper 271 is a hydraulic or electromagnetic brake, controlled by a controller in the electrical control box 4. When the device needs to stop or be fixed in a certain position, the controller sends a signal to the brake caliper 271 to clamp the brake disc 272, thereby achieving the braking function.

[0037] The working principle of this embodiment is as follows:

[0038] During construction, the entire device is first hoisted onto the pre-installed space frame structure using lifting equipment. The drive motor 21 is then started, moving the device along the space frame members to the installation node. Upon reaching the target position, the controller activates the braking assembly 27, locking the device onto the space frame member. At this point, the operator lowers the main hook 33 using the main winch 31, and ground personnel attach the space frame member to be installed to the main hook 33. The main winch 31 then raises the member to near the installation height. Because the hoisting body 1 is directly fixed to the space frame, the working length of the wire rope is only the distance from the fixed pulley 32 to the main hook 33, typically between 0.5 and 2 meters, much shorter than the sling length of traditional hoisting equipment. Therefore, the swing amplitude of the member is significantly reduced. Construction personnel can easily support the member for fine-tuning, aligning the sleeves at both ends of the member with the bolt holes, and then use a wrench to screw the bolts in for fixation. After completing the installation of this node, the brake is released, and the device moves to the next work position, repeating the above process.

[0039] Example 2

[0040] like Figure 4 and Figure 5 As shown, this embodiment further optimizes the structure of the moving mechanism 2, adds a position fine-tuning function, and improves the drive system based on embodiment one.

[0041] like Figure 4 As shown, the position fine-tuning assembly 26 includes an L-shaped fixing plate 261, which is bolted to the bottom of the lifting body 1. A long groove 262 is formed in the horizontal portion of the fixing plate 261, and the length direction of the groove 262 is parallel to the longitudinal direction of the lifting body 1. The top of the second horizontal fork 28 is bolted to the long groove 262, and the bolt can slide within the groove 262. When it is necessary to adjust the distance between the driven wheel 29 and the drive wheel 24, the bolts can be loosened, the second horizontal fork 28 can be moved along the long groove 262 to the desired position, and then the bolts can be tightened. This design allows the device to adapt to space frame members with different spacing, improving its versatility.

[0042] like Figure 4 As shown, in this embodiment, the drive system adopts a dual-wheel drive method. The drive motor 21 simultaneously drives two drive wheels 24 through two sprocket assemblies 22. Specifically, the output shaft of the drive motor 21 is connected to two driving sprockets, which simultaneously drive the driven sprockets on the axles of the two drive wheels 24 through two chains. This design improves the driving force and climbing ability of the device, and is particularly stable when moving on inclined space frame members.

[0043] Both the drive wheel 24 and the driven wheel 29 are polyurethane-coated wheels, and the depth of the groove 25 is increased to 1 / 3 of the wheel diameter, further enhancing the fit between the wheel and the space frame members and preventing slippage and deviation. Each wheel is equipped with an independent deep groove ball bearing to ensure smooth rotation and withstand radial loads.

[0044] In addition to the battery and controller, the electrical control box 4 also includes a wireless receiver module and a sensor system. The wireless receiver module can communicate with a handheld remote control, allowing operators to remotely control all actions of the device from a safe location. The sensor system includes a tilt sensor and a position encoder. The tilt sensor monitors the tilt status of the device to prevent tipping when working on steep slopes; the position encoder is mounted on the drive motor 21 to accurately record the device's travel distance and position.

[0045] The workflow of this embodiment is basically the same as that of Embodiment 1. However, due to the addition of the position fine-tuning component 26, the position of the driven bridge can be adjusted according to the actual spacing between the poles when the device is initially installed on the space frame, ensuring that all wheels can make good contact with the poles. The dual-wheel drive provides stronger power, enabling the device to move stably on space frame poles with a slope of up to 30°. The wireless remote control function makes operation more flexible and safer, and the sensor system provides additional safety protection.

[0046] Example 3

[0047] like Figure 6 This embodiment further optimizes the hoisting mechanism 3 based on Embodiment 1, employing a dual-winch configuration. The hoisting mechanism 3 also includes an auxiliary winch 34 and an auxiliary hook 35, with the auxiliary winch 34 connected to the auxiliary hook 35 via a wire rope. The fixed pulley 32 located in the middle of the hoisting body 1 can be a double-rail pulley. One main winch 31 is used to lift the boom, and one auxiliary winch 34 is used to control the horizontal swing of the boom. Through the coordinated control of the two winches, the swing of the boom can be further reduced, improving alignment accuracy.

[0048] The above embodiments are merely illustrative of the technical concept and implementation of this utility model, and are not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A novel high-altitude hoisting device for a bolted ball grid structure, characterized in that: The system includes a hoisting body, a moving mechanism, and a winch mechanism. The winch mechanism includes a main winch, a main hook, a wire rope, and several fixed pulleys. The main winch is located at the end of the hoisting body and is connected to the main hook via the wire rope. Several fixed pulleys are respectively located at the beginning of the hoisting body and on the hoisting body, and the fixed pulleys are used to guide the path of the wire rope. The moving mechanism is located at the bottom of the hoisting body and is used for position control of the hoisting body.

2. The novel bolted ball grid structure high-altitude hoisting device according to claim 1, characterized in that, The hoisting body includes horizontal steel pipes, inclined steel pipes, and several reinforcing bars; there are three horizontal steel pipes and three inclined steel pipes. The first end of each horizontal steel pipe is connected to the bottom end of each inclined steel pipe, and the top ends of the three inclined steel pipes are connected to each other. The several reinforcing bars are arranged in the space enclosed by the horizontal steel pipes and the inclined steel pipes, and the two ends of each reinforcing bar are welded and fixed to the adjacent horizontal steel pipes or the inclined steel pipes respectively.

3. The novel bolted ball grid structure high-altitude hoisting device according to claim 1, characterized in that, The moving mechanism includes a drive motor, a sprocket assembly, a drive axle, a driven axle, and a braking assembly. The drive motor is located at the end of the hoisting body. The drive axle includes a first horizontal fork and two drive wheels, with the two drive wheels respectively located at both ends of the first horizontal fork, which is located at the bottom of the hoisting body. The driven axle includes a second horizontal fork and two driven wheels, with the two driven wheels respectively located at both ends of the second horizontal fork, which is located at the bottom of the hoisting body. The output end of the drive motor drives at least one of the drive wheels to rotate via the sprocket assembly.

4. The novel bolted ball grid structure high-altitude hoisting device according to claim 3, characterized in that, The moving mechanism further includes a position fine-tuning component; the position fine-tuning component includes a fixing plate with an elongated slot, and the second flat fork is connected to the elongated slot of the fixing plate by bolts.

5. A novel bolted ball grid structure high-altitude hoisting device according to claim 3, characterized in that, Both the driving wheel and the driven wheel have grooves on their surfaces that match the space frame members.

6. The novel bolted ball grid structure high-altitude hoisting device according to claim 3, characterized in that, The distance between the driving wheel and the driven wheel is equal to the spacing between adjacent space frame members.

7. A novel bolted ball grid structure high-altitude hoisting device according to claim 3, characterized in that, The braking assembly includes a brake caliper and a brake disc that matches the brake caliper, the brake disc being connected to any of the drive wheels, and the brake caliper being disposed at the end of the first flat fork.

8. The novel bolted ball grid structure high-altitude hoisting device according to claim 1, characterized in that, An electrical control box is installed at the end of the hoisting body.

9. A novel bolted ball grid structure high-altitude hoisting device according to claim 1, characterized in that, The hoisting mechanism also includes an auxiliary winch and an auxiliary hook, wherein the auxiliary winch is connected to the auxiliary hook via the wire rope.

Images