Rail-mounted gantry crane system for high-rise building curtain wall installation and installation method of rail-mounted gantry crane system

Abstract

The invention discloses a rail-mounted gantry crane system for high-rise building curtain wall installation and an installation method of the rail-mounted gantry crane system, and relates to the field of building construction equipment. The rail-mounted gantry crane system comprises an annular rail, an overhanging support arm and a hoisting walker; the annular track is of a closed-loop structure formed by connecting a plurality of sections of standard I-shaped steel through detachable connecting pieces; the rear end of the overhanging support arm is fixed to a building main body structure through a fixed connecting piece, and the front end of the overhanging support arm is connected with the annular track through a connecting piece; the hoisting walking device comprises a hoisting mechanism and a walking mechanism, and the walking mechanism is arranged to be in contact with a web plate of the I-shaped steel rail and walk along the web plate of the I-shaped steel rail. The rear ends of the overhanging support arms are fixed to a building main body structure through fixing connecting pieces, the front ends of the overhanging support arms are connected with the annular rail through connecting pieces, the building serves as a supporting point, and the applicability to different buildings is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of building construction equipment, in particular to a rail hoist system for high-rise building curtain wall installation and a method for installing the same. BACKGROUND

[0002] With the development of urban construction, the demand for high-rise building facade decoration is increasing; the traditional curtain wall installation method is inefficient and has safety hazards.

[0003] The existing rail hoist system has certain limitations when dealing with complex building structures, such as difficulty in adapting to the arc-shaped section at the building facade corner. SUMMARY

[0004] To solve the above problems, the present application provides a rail hoist system for high-rise building curtain wall installation, comprising a ring-shaped track, a cantilevered arm and a hoisting trolley;

[0005] The ring-shaped track is composed of multiple standard I-beams connected by detachable connectors to form a closed loop structure;

[0006] The rear end of the cantilevered arm is fixed to the main structure of the building by a fixed connector, and the front end is connected to the ring-shaped track by a connector;

[0007] The hoisting trolley includes a lifting mechanism and a walking mechanism, and the walking mechanism is arranged to contact and walk along the web of the I-beam track.

[0008] In an optional embodiment, the length of the cantilevered arm is adjustable; the rear end of the cantilevered arm is provided with a cable-stayed reinforcement, which is connected to the main structure of the building.

[0009] In an optional embodiment, the ring-shaped track is provided as an arc-shaped section at the building facade corner, and the radius of curvature of the arc-shaped section is adapted to the size of the curtain wall unit panel; the ring-shaped track is composed of multiple track segments connected by connectors, and the connecting surfaces of adjacent track segments are smooth.

[0010] In an optional embodiment, it further includes a fall arrest safety device, which includes a limiting structure arranged at the end of the ring-shaped track, and a secondary braking mechanism arranged on the hoisting trolley and independent of the lifting mechanism.

[0011] In an optional embodiment, the rated load of the hoisting trolley is set to be greater than the maximum hoisting unit weight; the lifting mechanism is provided with a waterproof protection device and a load detection device.

[0012] In an optional embodiment, the ring-shaped track is provided with a lightning protection grounding connection structure; the system power supply adopts a special distribution box with a protection level meeting the requirements.

[0013] In an optional embodiment, the system is provided with a wind speed response shutdown device that automatically cuts off the power supply of the lifting mechanism when the wind speed is detected to exceed a set threshold; the annular track surface is provided with a protective layer suitable for low-temperature construction environment.

[0014] The application also provides a method for installing the track crane system as claimed in any one of the above, comprising the following steps:

[0015] Measuring and positioning the cantilevered arm mounting point;

[0016] Installing and leveling the cantilevered arm;

[0017] Segmentally installing the I-beam track segments and connecting them into a closed-loop annular track;

[0018] Installing the limiting structure at the end of the annular track;

[0019] Installing the hoisting trolley and connecting the special power supply device;

[0020] Performing empty load, rated load and overload tests.

[0021] In an optional embodiment, the step of installing and leveling the cantilevered arm uses lifting equipment to assist installation, and a force-bearing plate is arranged below the lifting equipment; fire safety measures are arranged when performing track connection work.

[0022] In an optional embodiment, the track crane system can be disassembled after installation; the disassembly work includes:

[0023] Disassembling the hoisting trolley, then segmentally disassembling the annular track, and finally disassembling the cantilevered arm.

[0024] Compared with the prior art, the application has the following at least one beneficial effect:

[0025] 1. The rear end of the cantilevered arm is fixed to the main structure of the building through a fixed connecting piece, and the front end is connected to the annular track through a connecting piece, which uses the building itself as a support point to improve the applicability to different buildings.

[0026] 2. The annular track is designed as an arc-shaped segment at the exposed corner of the building facade, and the radius of curvature is adapted to the size of the curtain wall unit panel; this improves the construction efficiency and also ensures the quality and aesthetics of the curtain wall installation.

[0027] 3. The anti-falling safety device is equipped, including a limiting structure and a secondary braking mechanism independent of the lifting mechanism, which greatly enhances the safety during operation and effectively prevents the risk of accidental falling.

[0028] 4. The wind speed response shutdown device is arranged, and the power supply of the lifting mechanism is automatically cut off under severe weather conditions, thereby ensuring the safety of the equipment and personnel. In addition, the surface of the annular track is provided with a protective layer suitable for low-temperature construction environment, so that the system can work normally in low-temperature environment. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0030] Among them:

[0031] Figure 1 A frame schematic diagram of a track hoist system for high-rise building curtain wall installation provided by an embodiment of the present application;

[0032] Figure 2 A step schematic diagram of a track hoist system installation method provided by an embodiment of the present application. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. It can be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application. In addition, it should be noted that only the parts related to the present application are shown in the drawings, not all the structures. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0034] The terms "first", "second" and the like in the present application are used to distinguish different objects, not to describe a specific order. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units is not limited to the listed steps or units, but optionally includes other steps or units not listed or optionally includes other steps or units inherent to the process, method, product or device.

[0035] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0036] Existing rail-mounted gantry systems typically suffer from problems such as complex installation, poor adaptability, insufficient operational flexibility, and inadequate safety. Traditional systems often require complex installation processes and are difficult to adapt quickly to different building structures, especially buildings with complex shapes. Furthermore, when hoisting heavy objects such as curtain wall unit panels, the lack of precise control and stable operation mechanisms can easily lead to increased operational risks, affecting construction safety and efficiency.

[0037] In view of this, this application, through the adoption of a modular circular track design, cantilevered supports utilizing the main building structure as support points, and a specially designed hoisting traveler that contacts and travels along the web of the I-beam track, achieves simple and quick installation, high adaptability and flexibility, and significantly improves operational safety and accuracy; Figure 1 As shown, Figure 1 A schematic diagram of a track-mounted gantry system for installing curtain walls of high-rise buildings, provided as an embodiment of this application, includes a circular track, a cantilevered boom, and a hoisting traveler.

[0038] The circular track is a closed-loop structure formed by connecting multiple standard I-beams via detachable connectors. In this embodiment, the circular track is a closed-loop structure formed by connecting multiple standard 20# or 22# I-beams via detachable connectors (such as M16 bolts). At the external corners of the building facade, the I-beams need to be bent into arc sections to accommodate the size and shape of the curtain wall unit panels. During installation, a total station is first used for precise layout and positioning to ensure the accurate placement of the cantilever arms and upper hanging components. Next, the cantilever arms are installed, and their rear ends are fixed to the floor slab using M18 clamps, while the front ends are connected to the circular track using stainless steel hexagonal head bolts.

[0039] The rear end of the cantilever arm is fixed to the main building structure by a fixing connector. In this embodiment, the rear end of the cantilever arm is fixed to the main building structure by an M18 clamp. In other embodiments, other suitable fixing connectors may be used, and no limitation is made in this regard.

[0040] The front end is connected to the ring track via connectors. Specifically, the front end of the cantilever arm is connected to other connectors via stainless steel hexagonal head bolts, which ultimately fixes the ring track in place, ensuring the stability of the connection and facilitating disassembly and adjustment.

[0041] The length of the cantilever arm is adjustable; the cantilever arm uses I-beams (such as 22# I-beams), and its length can be adjusted by changing the bolt positions; for example, multiple adjustable bolt holes are set on the cantilever component, and different hole positions are selected according to actual needs to adjust the cantilever length. This allows the system to adapt to building facades of different sizes and optimize the location of the hoisting points.

[0042] The rear end of the cantilever arm is equipped with a diagonal bracing member. In this embodiment, the diagonal bracing member is made of steel wire rope with a diameter of 16mm. In other embodiments, the diagonal bracing member can be made of steel wire rope of different diameters or other materials, and there are no limitations on this.

[0043] The diagonal bracing is connected to the main building structure, with one end of the steel wire rope connected to the cantilever arm and the other end fixed to the main building structure, forming a triangular support structure. This effectively disperses and bears the lateral forces from the hoisting process, enhances the overall rigidity and anti-overturning capacity of the cantilever arm, and ensures the stability of the system when hoisting heavy curtain wall unit panels.

[0044] The hoisting travel device includes a lifting mechanism and a traveling mechanism, with an electric hoist as the core component of the lifting mechanism; the electric hoist is equipped with a high-strength steel wire rope to ensure that it will not break or wear excessively during the hoisting process.

[0045] The traveling mechanism is configured to contact and travel along the web of the I-beam rail; specifically, the traveling wheels are high-load-bearing pulleys and are connected to the main body of the hoisting traveling device through bearings; the pulley surface is specially treated to reduce friction and improve wear resistance.

[0046] The traveling mechanism is in close contact with the web of the I-beam rail, providing a stable support surface and reducing swaying and deviation during travel. This allows the hoisting traveler to move smoothly on the rail, especially when the corner of the building facade is set as an arc section, it can also turn smoothly, improving construction efficiency and safety.

[0047] In summary, the rail-mounted gantry system of this embodiment includes a circular track, a cantilevered boom, and a hoisting travel mechanism. The circular track is a closed-loop structure formed by connecting multiple standard I-beams via detachable connectors. The rear end of the cantilevered boom is fixed to the main building structure via a fixed connector, and the front end is connected to the circular track via a connector. The hoisting travel mechanism includes a lifting mechanism and a traveling mechanism, with the traveling mechanism configured to contact and travel along the web of the I-beam track. The rear end of the cantilevered boom is fixed to the main building structure via a fixed connector, and the front end is connected to the circular track via a connector, utilizing the building itself as a support point, thus improving its applicability to different types of buildings.

[0048] In another embodiment, the circular track is set as an arc segment at the external corner of the building facade, and the radius of curvature of the arc segment is adapted to the size of the curtain wall unit panel; for example, if the width of the curtain wall unit panel is 2 meters, the radius of curvature of the arc segment may be set to 2.5 meters.

[0049] The circular track is composed of multiple track segments connected together. These segments are made of standard I-beams (such as 20# or 22#) connected by detachable connectors (such as M16 bolts) to form a closed-loop structure. Each track segment is approximately 3 meters long, and in special locations, the segments are spaced at intervals of less than 3 meters to accommodate different building shapes. This multi-segment design simplifies the installation process and facilitates transportation and assembly.

[0050] By incorporating curved sections at the external corners of building facades, the circular track can flexibly adapt to complex building shapes, especially those with curved transition sections. This not only improves the system's adaptability but also ensures that heavy objects such as curtain wall unit panels can be smoothly hoisted to their designated positions.

[0051] After adjacent track segments are connected, the surface is smooth. Fine adjustments are required to ensure that the connection point is smooth and free of protrusions. Specific measures include using high-precision processing equipment to manufacture track segments and using special tools on the construction site to fine-tune the connection point, so that the track surface flatness error is controlled within 2mm. The surface smoothing treatment ensures seamless connection after adjacent track segments are connected, avoiding the risk of the traveling mechanism jamming or derailment caused by uneven tracks.

[0052] In another embodiment, a fall protection safety device (not shown) is also included, which includes a limiting structure disposed at the end of the circular track; the limiting structure disposed at the end of the circular track is typically a mechanical limit switch or a stop; the limiting structure can prevent the hoisting traveler from exceeding the predetermined working range and avoid it from slipping off the end of the track and causing a fall accident.

[0053] For example, sturdy metal blocks are installed at the beginning and end of each circular track, and sensors are equipped on the blocks. When the hoisting walker approaches, an alarm is triggered and it automatically slows down until it stops.

[0054] And a secondary braking mechanism, independent of the hoisting mechanism, is installed on the hoisting travel device; the secondary braking mechanism ensures that even if the main braking system fails, the secondary braking can be activated quickly, providing additional safety.

[0055] The secondary braking mechanism can be an electromagnetic brake or a hydraulic brake. For example, an electromagnetic brake can be activated immediately when an abnormality is detected (such as overspeed, power failure, etc.), locking the wheels on the track through magnetic force to prevent further movement.

[0056] The entire fall protection safety device needs to be integrated with the control system of the hoisting traveler to achieve automated management. For example, when the hoisting traveler approaches the end of the track, the control system will automatically decelerate and trigger the limit switch; in case of an emergency, the secondary braking mechanism will be activated immediately to ensure the safety of equipment and personnel.

[0057] In another embodiment, the rated load of the hoisting traveler is set to be greater than the weight of the maximum hoisting unit; for example, if the weight of the maximum hoisting unit is 2 tons, then the rated load of the hoisting traveler is set to at least 3 tons to ensure sufficient safety margin.

[0058] The lifting mechanism is equipped with a waterproof protection device and a load detection device; the lifting mechanism is externally fitted with a waterproof cover or waterproof shell, using waterproof materials (such as stainless steel or engineering plastics) to ensure that the internal electrical components and mechanical parts are not affected by rain or other liquids; in addition, the cable interface is sealed with a waterproof sealing ring to further improve the waterproof performance.

[0059] High-precision load sensors are installed at key locations on the hoisting mechanism (such as wire rope anchor points or near the drum) to monitor the weight of the hoisted load in real time. These sensors are connected to a control panel via data cables, allowing operators to view the current load status and receive alarm signals in case of overload.

[0060] For example, the system will issue a warning when the load approaches or exceeds 90% of the rated load; once the rated load is exceeded, the system will automatically stop operating and lock the equipment to prevent further lifting.

[0061] In another embodiment, the circular track is provided with a lightning protection grounding connection structure; the circular track is connected to the equalizing ring of the main structure of the building through grooved embedded parts and bolts to form a complete grounding system.

[0062] For example, metal connecting plates are installed at the joints of each loop track section and connected to the building's lightning protection network or equipotential ring via copper wires. These connections should be inspected regularly to ensure they are secure and tight, maintaining good electrical continuity.

[0063] The system power supply uses a dedicated distribution box that meets the required protection level to ensure normal operation even in severe weather conditions. The distribution box is equipped with safety components such as leakage current protection devices, overload protection devices, and emergency power-off switches.

[0064] For example, a three-phase five-wire TN-S wiring protection system is installed in the distribution box to ensure safe and reliable electrical connections between the power supply line, the distribution box, and the switch box. At the same time, all cable interfaces are sealed with waterproof sealing rings to prevent rainwater intrusion that could cause short circuits or other electrical faults.

[0065] In another embodiment, the system is equipped with a wind speed response shutdown device that automatically cuts off the power to the hoisting mechanism when the detected wind speed exceeds a set threshold. A wind speed sensor is integrated into the system, typically installed at a key location on the hoisting walkway or circular track, to accurately monitor the real-time wind speed on site. When the wind speed exceeds a preset threshold; for example, a preset threshold of level 6 wind speed (approximately 10.8-13.8 m / s), the wind speed response shutdown device will automatically activate.

[0066] For example, the wind speed sensor transmits data to the control system wirelessly or via wired means. Once the wind speed exceeds the standard, the control system will immediately issue a command to cut off the power to the lifting mechanism and lock the traveling mechanism to prevent the equipment from continuing to operate.

[0067] The surface of the circular track is equipped with a protective layer adapted to low-temperature construction environments; this protective layer is typically made of cold-resistant materials, such as polyurethane elastomers, rubber coatings, or other coatings with excellent low-temperature performance.

[0068] After the track is installed, a protective material is evenly coated on the track surface using a spraying device, with a thickness controlled between 1 and 2 millimeters. This protective layer can not only resist the embrittlement caused by low temperature, but also provide certain corrosion resistance and wear resistance.

[0069] This application also provides an installation method for a rail-mounted gantry system as described in any of the above embodiments, such as... Figure 2 As shown, Figure 2 A schematic diagram illustrating the steps of an installation method for a rail-mounted gantry system according to an embodiment of this application includes the following steps:

[0070] Measure and locate the installation point of the cantilever arm; use precision measuring equipment such as a total station or laser rangefinder to accurately lay out and mark the installation position of the cantilever arm according to the design drawings.

[0071] Install and level the cantilever arm; adjust the height and levelness of the front end of the cantilever arm to ensure that its connection surface with the circular track is flat and perpendicular. Use a level to check the levelness of the cantilever arm, and make fine adjustments using the adjusting bolts if necessary.

[0072] The I-beam track sections are installed in segments and connected to form a closed loop; an arc-shaped section is set at the external corner of the building facade, and the appropriate radius of curvature is calculated according to the size of the curtain wall unit panel. The I-beams are then bent using special tools to ensure that the connection between each track section is smooth and without protrusions.

[0073] Install a limiting structure at the end of the circular track; ensure that the limiting structure is securely installed, and integrate it with the control system through sensors. When the hoisting traveler approaches the end of the track, it will trigger an alarm and automatically decelerate until it stops.

[0074] Install the hoisting travel device and connect it to the dedicated power supply; conduct preliminary debugging and check whether the various functions of the hoisting travel device are normal, including lifting, traveling and braking functions.

[0075] Conduct no-load, rated load, and overload tests; the implementation process of each test is described in detail below:

[0076] No-load test: Start the hoisting travel device and make it run a complete cycle along the circular track. Observe whether its operation is stable and whether there is any abnormal noise or vibration.

[0077] Rated load test: Suspend a load equal to the maximum lifting unit weight on the hoisting travel device, repeat the above operation test, record the operation data and check whether the system parameters meet the design requirements.

[0078] Overload test: Further increase the load to 110% of the rated load and conduct another operation test to verify the system's load-bearing capacity and safety.

[0079] The installation and leveling of the cantilever boom is assisted by a lifting device with sufficient load-bearing capacity and stability. The lifting device can be a scissor lift or a tower crane, and there are no restrictions on which type it is.

[0080] A load-bearing plate is installed under the lifting equipment to distribute the pressure of the equipment on the ground and prevent foundation settlement or other safety hazards caused by excessive local pressure. The load-bearing plate can be a steel plate or a specially designed support structure, and its size and thickness need to be determined according to the actual load-bearing requirements.

[0081] Fire safety measures were implemented during track connection work, such as providing fire extinguishers, setting up fire-catching basins, and isolating flammable materials, which significantly reduced the possibility of fire and ensured a safe environment at the construction site.

[0082] The rail-mounted gantry system can be dismantled after installation; dismantling work includes:

[0083] The hoisting walkway was dismantled, the circular track was dismantled in sections, and finally the cantilever arm was dismantled.

[0084] In the several embodiments provided in this application, it should be understood that the disclosed methods and devices can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For instance, the division of modules or units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed.

[0085] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment, depending on actual needs.

[0086] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0087] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A track-mounted crane system for installing curtain walls of high-rise buildings, characterized in that, Includes a circular track, cantilever boom, and hoisting travel device; The circular track is composed of multiple standard I-beams connected by detachable connectors to form a closed-loop structure. The rear end of the cantilever arm is fixed to the main building structure via a fixing connector, and the front end is connected to the annular track via a connector. The hoisting traveling device includes a hoisting mechanism and a traveling mechanism, the traveling mechanism being configured to contact the web of the I-beam rail and travel along it.

2. The rail-mounted gantry system according to claim 1, characterized in that, The length of the cantilever arm is adjustable; a diagonal bracing member is provided at the rear end of the cantilever arm, and the diagonal bracing member is connected to the main structure of the building.

3. The rail-mounted gantry system according to claim 1 or 2, characterized in that, The circular track is set as an arc segment at the external corner of the building facade, and the radius of curvature of the arc segment is adapted to the size of the curtain wall unit panel; the circular track is composed of multiple track segments connected together, and the surface is smooth after adjacent track segments are connected.

4. The rail-mounted gantry system according to claim 1 or 2, characterized in that, It also includes a fall protection safety device, which includes a limiting structure disposed at the end of the circular track and a secondary braking mechanism disposed on the hoisting traveler, independent of the hoisting mechanism.

5. The rail-mounted gantry system according to claim 1 or 2, characterized in that, The rated load of the hoisting travel device is set to be greater than the weight of the maximum hoisting unit; the lifting mechanism is equipped with a waterproof protection device and a load detection device.

6. The rail-mounted gantry system according to claim 1 or 2, characterized in that, The circular track is equipped with a lightning protection grounding connection structure; the system power supply uses a dedicated distribution box that meets the protection level requirements.

7. The rail-mounted gantry system according to claim 1 or 2, characterized in that, The system is equipped with a wind speed response shutdown device, which automatically cuts off the power supply to the lifting mechanism when the wind speed exceeds a set threshold; the surface of the annular track is provided with a protective layer adapted to low-temperature construction environments.

8. A method for installing a rail-mounted gantry system as described in any one of claims 1-7, characterized in that, Includes the following steps: Measure and locate the installation point of the cantilever arm; Install and level the cantilever arm; Install I-beam track sections in segments and connect them to form a closed-loop circular track; A limiting structure is installed at the end of the annular track; Install the hoisting travel device and connect it to the dedicated power supply; Conduct no-load, rated load, and overload tests.

9. The installation method according to claim 8, characterized in that, The installation and leveling of the cantilever arm is assisted by a lifting device, and a load-bearing plate is set below the lifting device; fire safety measures are set when performing track connection work.

10. The installation method according to claim 9, characterized in that, The rail-mounted gantry system can be dismantled after installation; dismantling work includes: The hoisting walkway was dismantled, the circular track was dismantled in sections, and finally the cantilever arm was dismantled.

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