A lifting device and a lifting system

Abstract

The utility model relates to lifting device technical field provides a kind of lifting equipment and lifting system, comprising: first gantry crane, it is movably set on wharf trestle along the width direction of itself, first gantry crane has the first flexible support leg and first rigid support leg spaced apart along the length direction of itself;Second gantry crane, it is movably set on wharf trestle along the width direction of itself, second gantry crane and first gantry crane can move towards or reverse movement, second gantry crane has the second flexible support leg and second rigid support leg spaced apart along the length direction of itself;Wherein, first flexible support leg and second rigid support leg are located in the same side, first rigid support leg and second flexible support leg are located in the same side, and first flexible support leg and second rigid support leg staggered track arrangement, first rigid support leg and second flexible support leg staggered track arrangement.Through the technical scheme of the utility model, the possibility of interference when double-machine hoisting is reduced.

Description

Technical Field

[0001] This utility model relates to the field of lifting device technology, and more specifically, to a lifting device and a lifting system. Background Technology

[0002] In the field of bridge construction, especially in long-span bridge projects, the transportation and erection of whole-section steel beams has become the mainstream development trend in order to improve construction efficiency and ensure structural stability. Since these whole-section steel beams need to meet the load-bearing and span requirements of the bridge, their weight generally exceeds 1,000 tons, and some ultra-large steel beams even reach the 2,000-ton level, which puts extremely high demands on the lifting capacity of hoisting equipment.

[0003] Therefore, in order to meet the demand for lifting large components, the industry often adopts a dual-crane lifting scheme. However, the traditional dual-crane lifting scheme is limited by the arrangement of equipment. The crane body and the running track are prone to mutual interference, making it difficult to complete the lifting operation of large components in the limited space of the dock, thus failing to meet the lifting requirements. Utility Model Content

[0004] The problem this invention addresses is how to reduce the possibility of interference during dual-machine hoisting.

[0005] To solve the above problems, this utility model provides a lifting device and a lifting system.

[0006] In a first aspect, this utility model provides a lifting device, comprising: a first gantry crane, movable on a wharf pier along its width direction, the first gantry crane having a first flexible leg and a first rigid leg spaced apart along its length direction; a second gantry crane, movable on the wharf pier along its width direction, the second gantry crane and the first gantry crane being movable towards each other or in opposite directions, the second gantry crane having a second flexible leg and a second rigid leg spaced apart along its length direction; wherein the first flexible leg and the second rigid leg are located on the same side, the first rigid leg and the second flexible leg are located on the same side, and the first flexible leg and the second rigid leg are arranged in a staggered manner, and the first rigid leg and the second flexible leg are arranged in a staggered manner.

[0007] The beneficial effects of the lifting device of this utility model are: By setting up the above structure, the first flexible support leg of the first gantry crane and the second rigid support leg of the second gantry crane are arranged on the same side, and the first rigid support leg and the second flexible support leg are arranged on the same side. Since the space occupied by the first rigid support leg and the second rigid support leg is larger than that occupied by the first flexible support leg and the second flexible support leg, the above arrangement of the flexible support leg and the rigid support leg on the same side can avoid physical interference such as collision and scraping caused by the spatial position of the support legs during the movement of the first gantry crane and the second gantry crane towards or in opposite directions, thereby reducing the risk of equipment interference.

[0008] Meanwhile, the first flexible support leg and the second rigid support leg, as well as the first rigid support leg and the second flexible support leg, are arranged in a staggered manner. This makes the running tracks of the first gantry crane and the second gantry crane parallel and staggered with a preset distance. This not only preserves the space conditions for the first gantry crane and the second gantry crane to work in close proximity, but also avoids the overlap and interference of the tracks of the first gantry crane and the second gantry crane when they move by staggering the tracks. It also prevents the structural interference between the first gantry crane and the second gantry crane caused by the tracks being collinear or the distance between them being too small.

[0009] Furthermore, due to the combined design of the first flexible support leg and the second rigid support leg, and the first rigid support leg and the second flexible support leg being arranged on the same side and in a staggered manner, the first gantry crane and the second gantry crane can more flexibly achieve movement adjustment towards each other or away from each other, thus expanding the operational adaptability of the first gantry crane and the second gantry crane.

[0010] Optionally, the lifting equipment further includes a lifting controller, which is communicatively connected to the first gantry crane and the second gantry crane respectively, for controlling the lifting actions of the first gantry crane and the second gantry crane.

[0011] Optionally, the hoisting controller further includes a parameter acquisition unit, a central processing unit, and a control unit. The parameter acquisition unit, the central processing unit, and the control unit are interconnected. Both the first gantry crane and the second gantry crane are equipped with parameter acquisition units. The parameter acquisition units are used to acquire hoisting force data of the first gantry crane and the second gantry crane, and transmit the hoisting force data to the central processing unit. The central processing unit receives the hoisting force data and outputs a first processing signal. The control unit is used to receive the first processing signal and adjust the hoisting actions of the first gantry crane and the second gantry crane.

[0012] Optionally, the lifting equipment further includes a switching module, which is communicatively connected to the control unit to transmit signals to the control unit and enable the control unit to control the first gantry crane and the second gantry crane to operate independently or in conjunction.

[0013] Optionally, the lifting equipment further includes a load synchronization travel controller, which is communicatively connected to the travel drive of the first gantry crane and the travel drive of the second gantry crane, respectively, for controlling the movement of the first gantry crane and the second gantry crane.

[0014] Optionally, the distance between the centerline of the main beam of the first gantry crane and the centerline of the main beam of the second gantry crane is greater than or equal to 12m.

[0015] Optionally, the first gantry crane is provided with at least two first lifting components, which can move along the length of the first gantry crane.

[0016] Optionally, the second gantry crane is provided with at least two second lifting components, which can move along the length of the second gantry crane.

[0017] Optionally, the moving speed of the first lifting component and the second lifting component is between 0.5m / s and 1.5m / s.

[0018] Secondly, this utility model provides a lifting system, including the aforementioned lifting device.

[0019] The lifting system of this embodiment has the same beneficial effects as the lifting device described above compared to the prior art, and will not be repeated here. Attached Figure Description

[0020] Figure 1 This is a side view of the lifting equipment provided in an embodiment of the present utility model; Figure 2 This is a schematic diagram of the main face of the lifting equipment provided in an embodiment of the present utility model; Figure 3 This is a top view of the lifting equipment provided in an embodiment of the present utility model.

[0021] Explanation of reference numerals in the attached figures: First gantry crane 10, first flexible outrigger 11, first rigid outrigger 12, first lifting component 13 Second gantry crane 20, second flexible outrigger 21, second rigid outrigger 22, second lifting component 23 The pier is 30 meters wide (X) and has a length (Y). Detailed Implementation

[0022] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Although some embodiments of this utility model are shown in the drawings, it should be understood that this utility model can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this utility model. It should be understood that the drawings and embodiments of this utility model are for illustrative purposes only and are not intended to limit the scope of protection of this utility model.

[0023] In the accompanying drawings, the X-axis represents the horizontal direction and is designated as the front-to-back position; the positive direction of the X-axis represents the front side, and the negative direction represents the rear side. Similarly, the Y-axis represents the left-to-right position; the positive direction of the Y-axis represents the left side, and the negative direction represents the right side. It should be noted that the aforementioned representations of the X and Y axes are merely for ease of description and simplification of the present invention, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0024] The term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to"; the term "based on" means "at least partially based on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; and the term "optionally" means "optional embodiments". Definitions of other terms will be given in the following description. It should be noted that the concepts of "first," "second," etc., mentioned in this utility model are only used to distinguish different devices, modules, or units, and are not used to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0025] It should be noted that the terms "one" and "multiple" used in this utility model are illustrative rather than restrictive. Those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0026] like Figures 1 to 3As shown, in a first aspect, the lifting equipment provided by this utility model includes: a first gantry crane 10, which is movable on a wharf pier 30 along its own width direction, the first gantry crane 10 having a first flexible support leg 11 and a first rigid support leg 12 spaced apart along its own length direction; a second gantry crane 20, which is movable on the wharf pier 30 along its own width direction, the second gantry crane 20 and the first gantry crane 10 being movable towards each other or in opposite directions, the second gantry crane 20 having a second flexible support leg 21 and a second rigid support leg 22 spaced apart along its own length direction; wherein, the first flexible support leg 11 and the second rigid support leg 22 are located on the same side, the first rigid support leg 12 and the second flexible support leg 21 are located on the same side, and the first flexible support leg 11 and the second rigid support leg 22 are arranged in a staggered manner, the first rigid support leg 12 and the second flexible support leg 21 are arranged in a staggered manner.

[0027] In this embodiment, by setting the above structure, the first flexible support leg 11 of the first gantry crane 10 and the second rigid support leg 22 of the second gantry crane 20 are arranged on the same side, and the first rigid support leg 12 and the second flexible support leg 21 are arranged on the same side. Since the space occupied by the first rigid support leg 12 and the second rigid support leg 22 is greater than that occupied by the first flexible support leg 11 and the second flexible support leg 21, the above-mentioned arrangement of the flexible support leg and the rigid support leg on the same side can avoid physical interference such as collision and scraping caused by the spatial position of the support legs during the movement of the first gantry crane 10 and the second gantry crane 20 towards or in opposite directions, thereby reducing the risk of equipment interference.

[0028] Meanwhile, the first flexible support leg 11 and the second rigid support leg 22, and the first rigid support leg 12 and the second flexible support leg 21 are arranged in a staggered manner. This makes the running tracks of the first gantry crane 10 and the second gantry crane 20 parallel and staggered with a preset distance. This not only preserves the space conditions for the first gantry crane 10 and the second gantry crane 20 to work in close proximity, but also avoids the track overlap interference of the first gantry crane 10 and the second gantry crane 20 when they move by staggering the tracks. It also prevents the first gantry crane 10 and the second gantry crane 20 from structural interference caused by the tracks being collinear or the distance being too small.

[0029] Furthermore, due to the combined design of the first flexible support leg 11 and the second rigid support leg 22, and the first rigid support leg 12 and the second flexible support leg 21 being arranged on the same side and in a staggered manner, the first gantry crane 10 and the second gantry crane 20 can more flexibly achieve movement adjustment towards each other or away from each other, thus expanding the operational adaptability of the first gantry crane 10 and the second gantry crane 20.

[0030] Optionally, the lifting equipment also includes a lifting controller, which is communicatively connected to the first gantry crane 10 and the second gantry crane 20 respectively, for controlling the lifting actions of the first gantry crane 10 and the second gantry crane 20.

[0031] By setting up the above structure, the hoisting actions (such as lifting height, lifting speed, and hoisting point posture) of the first gantry crane 10 and the second gantry crane 20 can be centrally scheduled and synchronously controlled. This effectively solves the problems of poor coordination and asynchronous actions caused by independent operation in traditional dual-crane hoisting. This can avoid the risk of swaying caused by uneven force on the hoisting point and improve the stability and safety of the hoisting process of ultra-large components.

[0032] Meanwhile, the hoisting controller can also shorten the adjustment time for hoisting actions, thereby greatly improving overall operational efficiency and meeting the needs of efficient dock construction.

[0033] Optionally, the hoisting controller also includes a parameter acquisition unit, a central processing unit, and a control unit. The parameter acquisition unit, the central processing unit, and the control unit are interconnected. Both the first gantry crane 10 and the second gantry crane 20 are equipped with parameter acquisition units. The parameter acquisition units are used to acquire hoisting force data of the first gantry crane 10 and the second gantry crane 20 and transmit the hoisting force data to the central processing unit. The central processing unit receives the hoisting force data and outputs a first processing signal. The control unit is used to receive the first processing signal and adjust the hoisting actions of the first gantry crane 10 and the second gantry crane 20.

[0034] In this embodiment, by setting parameter acquisition units on the first gantry crane 10 and the second gantry crane 20 respectively, the lifting force data of the first gantry crane 10 and the second gantry crane 20 can be collected in real time. This ensures the accuracy of the perception of the lifting status and provides a reliable basis for subsequent control. At the same time, the central processing unit can compare and analyze the lifting force data of the first gantry crane 10 and the second gantry crane 20. When problems such as force imbalance or asynchronous movement are detected, the central processing unit can output a first processing signal. After receiving the first processing signal, the control unit automatically adjusts the lifting speed, lifting point height and other actions of the first gantry crane 10 and the second gantry crane 20 to significantly improve the stability of the lifting.

[0035] Furthermore, dynamic control based on real-time stress data can prevent damage to the structures of the first gantry crane 10 and the second gantry crane 20 due to local overload, thereby reducing the risk of failure in hoisting operations.

[0036] Optionally, the lifting equipment also includes a switching module, which is communicatively connected to the control unit to transmit signals to the control unit and enable the control unit to control the first gantry crane 10 and the second gantry crane 20 to operate independently or in conjunction.

[0037] By setting up the above structure, the switching module and the control unit work together to achieve flexible switching between independent operation and coordinated operation of the first gantry crane 10 and the second gantry crane 20, which can be accurately adapted to different operating scenarios at the dock.

[0038] In this embodiment, when it is necessary to lift small and medium-sized components weighing less than 1000t, the two machines are controlled to operate independently to avoid the waste of resources in the dual-machine linkage; when facing a whole steel beam weighing more than 1000t, the linkage mode is switched to meet the lifting requirements of ultra-large loads through the cooperation of the first gantry crane 10 and the second gantry crane 20.

[0039] Optionally, the lifting equipment also includes a load synchronization travel controller, which is communicatively connected to the travel drive of the first gantry crane 10 and the travel drive of the second gantry crane 20, respectively, for controlling the movement of the first gantry crane 10 and the second gantry crane 20.

[0040] In this embodiment, the load synchronization travel controller is directly connected to the travel drive of the first gantry crane 10 and the second gantry crane 20, respectively. It can precisely control the travel speed, displacement and start / stop timing of the first gantry crane 10 and the second gantry crane 20, so as to ensure that the first gantry crane 10 and the second gantry crane 20 maintain synchronous movement during load lifting, so as to avoid the risk of component tilting caused by travel deviation, thereby ensuring the stability during hoisting.

[0041] Meanwhile, the load synchronization travel controller can coordinate the travel movements of the first gantry crane 10 and the second gantry crane 20 in real time to prevent collisions and interference between the equipment structures under misaligned layouts due to minor travel deviations.

[0042] Optionally, the distance between the centerline of the main beam of the first gantry crane 10 and the centerline of the main beam of the second gantry crane 20 is greater than or equal to 12m.

[0043] By setting up the above structure, the distance between the center line of the main beam of the first gantry crane 10 and the center line of the main beam of the second gantry crane 20 can ensure that there is sufficient safe operating space between the gantry structure, trolley and running parts of the two 1000t gantry cranes, effectively avoiding interference problems such as structural scraping and component collision during the lifting of the first gantry crane 10 and the second gantry crane 20 at very close distances or during the movement towards or in the opposite direction.

[0044] Meanwhile, the aforementioned spacing meets the requirements for ultra-close-range lifting operations, avoiding both excessively small spacing that restricts equipment operation and excessively large spacing that wastes dock space, thus improving space utilization. Furthermore, this spacing satisfies the collaborative operation requirements of the first gantry crane 10 and the second gantry crane 20 when lifting 2000t-class components, while also ensuring sufficient operating space for a single crane operating independently. When switching to independent operation mode to lift small to medium-sized components under 1000t, the aforementioned spacing prevents mutual interference between the first gantry crane 10 and the second gantry crane 20 during parallel operations, ensuring flexible operation of a single piece of equipment and improving the efficiency of multi-task parallel operations at the dock.

[0045] Optionally, the first gantry crane 10 is provided with at least two first lifting components 13, which can move along the length of the first gantry crane 10.

[0046] By setting up the above structure, at least two movable first lifting components 13 can flexibly adjust their spacing and position along the length of the crane to precisely align with the preset lifting points of the steel beam, ensuring that the lifting force is evenly distributed to protect the safety of the components.

[0047] Optionally, the second gantry crane 20 is provided with at least two second lifting components 23, which can move along the length of the second gantry crane 20.

[0048] By setting up the above structure, at least two movable lifting components can flexibly adjust their spacing and position along the length of the crane to precisely align with the preset lifting points of the steel beam, ensuring that the lifting force is evenly distributed to protect the safety of the components.

[0049] Optionally, the moving speed of the first lifting component 13 and the second lifting component 23 is between 0.5m / s and 1.5m / s.

[0050] With the above settings, a moving speed of 0.5m / s-1.5m / s avoids swaying of the hoisted components due to excessive speed, while also solving the problem of low hoisting efficiency caused by excessively slow speed. When the hoisted components of the first gantry crane 10 and the second gantry crane 20 are adjusted in coordination, the hoisting efficiency will not be reduced due to excessively fast or slow speeds.

[0051] Meanwhile, when manual assistance is required to monitor and adjust the lifting points, a speed of 0.5m / s-1.5m / s allows operators ample time to judge the positional deviation of the lifting components and issue adjustment instructions, avoiding safety accidents caused by untimely manual intervention due to excessive speed, thus balancing the safety of automated equipment control and manual operation.

[0052] Secondly, the lifting system provided by this utility model includes the lifting device described above. Although this utility model has been disclosed above, its protection scope is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of this utility model, and all such changes and modifications will fall within the protection scope of this utility model.

Claims

1. A lifting apparatus, characterised in that, include: The first gantry crane (10) is movable on the dock trestle (30) along its own width direction. The first gantry crane (10) has a first flexible leg (11) and a first rigid leg (12) spaced apart along its own length direction. The second gantry crane (20) is movable on the wharf trestle (30) along its own width direction. The second gantry crane (20) and the first gantry crane (10) can move towards each other or in opposite directions. The second gantry crane (20) has a second flexible leg (21) and a second rigid leg (22) spaced apart along its own length direction. The first flexible support leg (11) and the second rigid support leg (22) are located on the same side, the first rigid support leg (12) and the second flexible support leg (21) are located on the same side, and the first flexible support leg (11) and the second rigid support leg (22) are arranged in a staggered manner, and the first rigid support leg (12) and the second flexible support leg (21) are arranged in a staggered manner.

2. A lifting apparatus according to claim 1, wherein The lifting equipment also includes a lifting controller, which is communicatively connected to the first gantry crane (10) and the second gantry crane (20) to control the lifting actions of the first gantry crane (10) and the second gantry crane (20).

3. A lifting apparatus according to claim 2, wherein, The hoisting controller further includes a parameter acquisition unit, a central processing unit, and a control unit. The parameter acquisition unit, the central processing unit, and the control unit are interconnected. The first gantry crane (10) and the second gantry crane (20) are each equipped with a parameter acquisition unit. The parameter acquisition unit is used to acquire hoisting force data of the first gantry crane (10) and the second gantry crane (20) and transmit the hoisting force data to the central processing unit. The central processing unit receives the hoisting force data and outputs a first processing signal. The control unit is used to receive the first processing signal and adjust the hoisting actions of the first gantry crane (10) and the second gantry crane (20).

4. A lifting apparatus according to claim 3, wherein The lifting equipment also includes a switching module, which is communicatively connected to the control unit to transmit signals to the control unit and enable the control unit to control the first gantry crane (10) and the second gantry crane (20) to operate independently or in conjunction.

5. A lifting apparatus according to claim 1, wherein The lifting equipment also includes a load synchronization travel controller, which is communicatively connected to the travel drive of the first gantry crane (10) and the travel drive of the second gantry crane (20) to control the movement of the first gantry crane (10) and the second gantry crane (20).

6. A lifting apparatus according to claim 3, wherein The distance between the centerline of the main beam of the first gantry crane (10) and the centerline of the main beam of the second gantry crane (20) is greater than or equal to 12m.

7. A lifting apparatus according to claim 1, wherein The first gantry crane (10) is provided with at least two first lifting components (13), and the two first lifting components (13) can move along the length direction of the first gantry crane (10).

8. A lifting apparatus according to claim 7, wherein The second gantry crane (20) is provided with at least two second lifting components (23), which can move along the length of the second gantry crane (20).

9. A lifting apparatus according to claim 8, wherein, The moving speed of the first lifting component (13) and the second lifting component (23) is between 0.5m / s and 1.5m / s.

10. A lifting system, characterized in that Includes a lifting device as described in any one of claims 1 to 9.

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