Movable bridge lifting system and method

Abstract

The invention relates to a lifting system and method for a movable bridge. The system comprises two identical subsystems which are symmetrically arranged on the inlet side and the outlet side of the movable bridge respectively, and each subsystem comprises a control module, a power module and a lifting module. The control module is connected with the power module and used for controlling starting of the power module. The power module is connected with the lifting module, comprises a motor, a planetary reducer and a reducer, and is used for outputting the rotating speed and completing speed reduction adjustment, so that the lifting process of the movable bridge is synchronous; the lifting module is connected with the movable bridge and achieves synchronous lifting of the movable bridge through the rotating speed output by the power module. Compared with the prior art, the method has the advantages of being good in synchronization performance, easy to control, universal, high in safety and the like.

Description

Technical Field

[0001] The present invention relates to the technical field of bridges, and in particular to a lifting system and method for a movable bridge. Background Art

[0002] With the increasing urban traffic and the growth of waterway traffic, it is necessary to design more flexible bridge systems to ensure smooth connections between land and water transportation. An innovative technology applied to this scenario is the lifting mechanism movable bridge, which is designed to lift the bridge to allow ships or aircraft to pass through.

[0003] In the process of designing and implementing the lifting mechanism movable bridge, engineers face various challenges and technical considerations: First, in mechanical engineering, a stable and reliable lifting system needs to be designed to ensure the smoothness and safety of the bridge during the lifting process. Second, in structural engineering, the load-bearing capacity and stability of the bridge itself, as well as the integrated design with the lifting mechanism, need to be considered. In addition, the electrical engineering field is responsible for designing the control system to ensure precise control and safe operation during the lifting process. In a marine environment, factors such as waves and tides may affect the bridge and the lifting system, so knowledge of ocean engineering and dynamics needs to be comprehensively considered. Finally, in order to test and verify the reliability and performance parameters of the lifting mechanism movable bridge, corresponding simulation models may need to be established or field tests may be conducted to ensure its safe operation and stability under various conditions.

[0004] In summary, the background art of the lifting mechanism movable bridge covers knowledge and technologies in multiple fields such as mechanical engineering, structural engineering, electrical engineering, and ocean engineering. By comprehensively applying these technologies, the flexible opening and safe passage of the bridge can be achieved, promoting the interconnection of urban and waterway traffic.

[0005] Currently, common lifting mechanism movable bridges are costly, have a large manufacturing volume, are relatively difficult to control in terms of quality and synchronization, are complex to install, difficult to disassemble, have high requirements for maintenance personnel, and have poor comprehensive applicability.

[0006] For example, in the invention patent with the publication number CN103510459B, a lifting and opening / closing mechanism for a vertical lifting movable bridge is disclosed, which is mainly applied to the lifting of the movable bridge. In this patent, a counterweight and a hydraulic cylinder cooperate through a steel wire rope around a wire rope drum to be connected to the bridge span structure, ensuring the smooth lifting operation of the bridge span structure. The cooperation of its brake, buffer, and centering device ensures the safety and stability of the bridge span structure during descent, enabling the bridge span structure to be in a smooth and safe lifting operation state, and realizing the opening and closing of the movable bridge. However, the lifting bridge structure described in this patent is mechanical + civil engineering, with high costs and complex installation. Moreover, problems such as the safety of the steel wire rope and the working efficiency of the disc brake make it difficult to meet the actual application requirements. Summary of the Invention

[0007] The object of the present invention is to provide a lifting system and method for an opening bridge to overcome the defects existing in the above-mentioned prior art.

[0008] The object of the present invention can be achieved by the following technical solutions:

[0009] According to one aspect of the present invention, a lifting system for an opening bridge is provided. The system includes two identical subsystems, which are symmetrically arranged on the entrance side and the exit side of the opening bridge respectively. Each subsystem includes a control module, a power module and a lifting module;

[0010] Among them, the control module is connected to the power module and is used to control the start of the power module;

[0011] The power module is connected to the lifting module. The power module includes a motor 3, a planetary reducer 5 and a reducer 6, and is used to output a rotational speed and complete speed reduction adjustment to make the lifting process of the opening bridge synchronous;

[0012] The lifting module is connected to the opening bridge, and this module uses the rotational speed output by the power module to realize the lifting of the opening bridge.

[0013] As a preferred technical solution, the motor 3 in the power module is used to generate power; when the motor 3 starts to rotate forward, the lifting of the bridge deck is realized, so as to realize the opening of the opening bridge; when the motor 3 starts to rotate reversely, the lowering of the bridge deck is realized, so as to realize the closing of the opening bridge.

[0014] As a preferred technical solution, one end of the planetary reducer 5 in the power module is connected to the motor 3, and the other end is connected to the reducer 6.

[0015] As a preferred technical solution, the lifting module includes a multi-stage screw lifting device 4, a support 2 and a jacking device 1. Among them, one end of the multi-stage screw lifting device 4 is connected to the jacking device 1 through the support 2, and the other end is connected to the reducer 6 in the control module.

[0016] As a preferred technical solution, the multi-stage screw lifting device 4 is of a socket structure.

[0017] As a preferred technical solution, the multi-stage screw is provided with self-locking threads.

[0018] As a preferred technical solution, the lifting module is also provided with a position sensor and a load sensor, which are used to monitor the position and load condition of the lifting module in real time and feed the monitoring data back to the control module.

[0019] As a preferred technical solution, the control module is connected with a safety locking device. When the position sensor and the load sensor detect abnormal conditions during the lifting process, the safety locking device is started to lock the lifting module.

[0020] As a preferred technical solution, the safety locking device adopts an electromagnetic brake.

[0021] According to another aspect of the present invention, there is provided a method for lifting an opening bridge, which is applied to an opening bridge lifting system as described above. The specific steps of the method are as follows: First, the control module controls the start of the power module, the power module outputs a rotational speed and completes deceleration adjustment, and then the lifting module uses the adjusted rotational speed to complete the lifting and lowering of the bridge deck, thereby realizing the opening and closing of the opening bridge.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The system in the present invention includes two identical subsystems, which are symmetrically arranged on the entrance side and the exit side of the opening bridge respectively. The subsystem includes a control module, a power module, and a lifting module; the control module is connected to the power module and is used to control the start of the power module; the power module is connected to the lifting module, and the power module includes a motor, a planetary reducer, and a reducer, and is used to output a rotational speed and complete deceleration adjustment to make the lifting process of the opening bridge synchronous; the lifting module is connected to the opening bridge, and this module uses the rotational speed output by the power module to realize the synchronous lifting of the opening bridge. It makes up for the disadvantages of the traditional lifting mechanism for opening bridges, such as high cost and poor synchronization performance. The present invention has high synchronization accuracy and simple control.

[0024] 2. The present invention is only composed of a control module, a power module, and a lifting module. The power module includes a motor, a planetary reducer, and a reducer, making the invention simple in structure, low in cost, easy to disassemble and assemble, and easy to promote and apply, and has high practical value.

[0025] 3. The multi-stage lead screw in the present invention is provided with a self-locking thread, and the control module is connected with a safety locking device. When the position sensor and the load sensor detect abnormal conditions during the lifting process, the safety locking device is activated to lock the lifting module. The safety locking device adopts an electromagnetic brake. The self-locking function is realized, making its maintenance simple and greatly improving the safety performance of the opening bridge.

[0026] 4. Through the setting of the jacking device, the support, the motor, the multi-stage lead screw lifting device, the planetary reducer, and the reducer, the present invention realizes the synchronous lifting of the opening bridge, can effectively cope with the complex and changeable marine environment, including factors such as waves and tides, and ensures the stability and safety of the bridge under special environments. Description of the Drawings

[0027] Figure 1 It is an enlarged structural schematic diagram of the lifting mechanism in the present invention;

[0028] Figure 2 It is a front view of the structure of the opening bridge in the open state of the lifting mechanism in the embodiment;

[0029] Figure 3 Left view of the open state structure of the lifting bridge in the embodiment

[0030] Figure 4 Front view of the closed state structure of the lifting bridge in the embodiment

[0031] Figure 5 Left view of the closed state structure of the lifting bridge in the embodiment

[0032] Figure 6 Top view of the closed state structure of the lifting bridge in the embodiment

[0033] In the figure, 1 is the jacking device; 2 is the support; 3 is the motor; 4 is the screw lifting device; 5 is the planetary reducer; 6 is the reducer. Specific implementation manners

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0035] With the increasing busyness of urban traffic and the growth of waterway traffic, it is necessary to design a more flexible bridge system to ensure smooth connection between land and water. An innovative technology applied to this scenario is the lifting mechanism opening bridge, whose design aims to achieve the lifting of the bridge for ships to pass or aircraft to pass through.

[0036] In the process of designing and implementing the lifting mechanism opening bridge, engineers face various challenges and technical considerations: First, in mechanical engineering, it is necessary to design a stable and reliable lifting system to ensure the smoothness and safety of the bridge during the lifting process. Second, in structural engineering, it is necessary to consider the bearing capacity and stability of the bridge itself, as well as the integrated design with the lifting mechanism. In addition, the electrical engineering field is responsible for designing the control system to ensure the precise control and safe operation of the lifting process. In the marine environment, factors such as waves and tides may affect the bridge and the lifting system, so it is necessary to comprehensively consider knowledge in ocean engineering and dynamics. Finally, in order to test and verify the reliability and performance parameters of the lifting mechanism opening bridge, it may be necessary to establish corresponding simulation models or conduct field tests to ensure its safe operation and stability under various conditions.

[0037] In summary, the background technology of the lifting mechanism opening bridge covers knowledge and technologies in multiple fields such as mechanical engineering, structural engineering, electrical engineering, and marine engineering. By comprehensively applying these technologies, the flexible opening and safe passage of the bridge can be achieved, promoting the interconnection of urban and waterway traffic.

[0038] Currently, the common lifting mechanism opening bridges are costly, require a large manufacturing volume, are relatively difficult in quality control and synchronous control, are complex in installation, difficult to disassemble, have high requirements for maintenance personnel, and have poor comprehensive applicability. There is an urgent need for a simple and highly comprehensive opening bridge lifting system.

[0039] Embodiment 1

[0040] In this embodiment, an opening bridge lifting system is applied. The system includes two identical subsystems, which are symmetrically arranged on the entrance side and the exit side of the opening bridge respectively. The structure of its subsystem is as Figure 1 shown, including a control module, a power module, and a lifting module;

[0041] Among them, the control module is connected to the power module and is used to control the start of the power module; the power module is connected to the lifting module. The power module includes a motor 3, a planetary reducer 5, and a reducer 6, and is used to output the rotational speed and complete the deceleration adjustment to synchronize the lifting process of the opening bridge; the lifting module is connected to the opening bridge, and this module utilizes the rotational speed output by the power module to realize the lifting of the opening bridge. In this embodiment, the multi-stage screw lifting device 4 adopts a two-stage screw lifting device 4.

[0042] In this embodiment, the opening bridge lifting system includes a jacking device 1, a support 2, a motor 3, a two-stage screw lifting device 4, a planetary reducer 5, and a reducer 6; among them, the upper end of the motor 3 is connected to the planetary reducer 5, the upper end of the planetary reducer 5 is connected to the reducer 6, the other end of the reducer 6 is connected to the upper end of the two-stage screw lifting device 4, the lower end of the two-stage screw lifting device 4 is connected to the jacking device 1, and the jacking device 1 is sleeved with the support 2; the two-stage screw lifting device 4 and the jacking device 1 can realize the synchronous lifting of the multi-stage screw. The two-stage screw lifting device 4 and the jacking device 1 are connected through the support 2. The jacking device 1, the support 2, the motor 3, the two-stage screw lifting device 4, the planetary reducer 5, and the reducer 6 are all symmetrically arranged. The two-stage screw lifting device 4 is of a sleeved structure, and a self-locking thread is added to the thread design of its multi-stage screw.

[0043] In this embodiment, after the motor 3 starts to rotate forward, it drives the two-stage screw lifting device 4 through the planetary reducer 5 and the reducer 6. The two-stage screw lifting device 4 realizes the lifting of the bridge deck through the jacking device 1, thereby realizing the opening of the opening bridge. When the opening bridge is in the open state, the front view of its structure is as Figure 2 shown, and the left view is as Figure 3 shown.

[0044] In this embodiment, after the motor 3 starts to reverse, it drives the secondary screw lifting device 4 through the planetary reducer 5 and the reducer 6. The secondary screw lifting device 4 realizes the lowering of the bridge deck through the jacking device 1, thereby realizing the closing of the opening bridge. When the opening bridge is in the closed state, the front view of its structure is as shown in Figure 4 shown, and the left view is as shown in Figure 5 shown, and the top view is as shown in Figure 6 shown.

[0045] In this embodiment, the lifting module is also provided with a position sensor and a load sensor, which are used to monitor the position and load conditions of the lifting module in real time, and feed the monitoring data back to the power module and the control module. The position sensor can accurately detect the lifting height of the bridge deck to ensure that it operates within the set safety range; the load sensor can monitor the weight borne by the bridge deck during the lifting process, prevent equipment damage or safety accidents caused by overloading, and at the same time provide a basis for the power module to adjust the speed and torque to adapt to different load requirements, ensuring the smoothness and safety of the lifting process.

[0046] In this embodiment, the control module is also provided with a safety locking device. When the position sensor and the load sensor in the lifting module detect abnormal conditions during the lifting process, such as overloading, overspeed, sensor failure, etc., the safety locking device is activated to lock the lifting module, preventing the bridge deck from accidentally descending or ascending, and ensuring the safety of personnel and equipment. The safety locking device can adopt structures such as electromagnetic brakes and mechanical locks, which are connected to the lifting module and cooperate with the control system. When the control system detects an abnormal signal, it can quickly trigger the safety locking device to immediately lock the movement of the lifting module, and at the same time send an alarm signal to remind relevant personnel to check and handle, ensuring the safe and reliable operation of the system.

[0047] In this embodiment, the system also includes an environmental monitoring module, which is used to monitor parameters such as wind speed, wind direction, temperature, and humidity of the environment where the bridge is located. According to the environmental changes, the control system can automatically adjust the lifting strategy, such as restricting the lifting height or speed under strong wind conditions, to ensure the stability and safety of the bridge under different environmental conditions.

[0048] In summary, this system enables the bridge to be lifted and lowered according to actual needs for ships to pass or aircraft to fly through. Secondly, this system takes into account the structural stability and load-bearing capacity to ensure the safe operation of the bridge during the lifting process. In addition, the control module equipped with this system can achieve precise control of the lifting process, ensuring smooth traffic. Most importantly, this system can effectively cope with the complex and changeable marine environment, including factors such as waves and tides, and maintain the stability and safety of the bridge. Generally speaking, this system can effectively solve the limitations of the existing technology and provide a more convenient and reliable passage for waterway transportation.

[0049] Embodiment 2

[0050] In this embodiment, a method for lifting an opening bridge is applied to an opening bridge lifting system as shown in Figure 1 The specific steps are as follows: First, the control module controls the start of the power module, the power module outputs a rotation speed and completes deceleration adjustment, and then the lifting module uses the adjusted rotation speed to complete the lifting and lowering of the bridge deck, thereby realizing the opening and closing of the opening bridge. In this embodiment, the multi-stage screw lifting device 4 adopts a two-stage screw lifting device 4.

[0051] In this embodiment, the opening bridge lifting system includes a jacking device 1, a support 2, a motor 3, a two-stage screw lifting device 4, a planetary reducer 5, and a reducer 6; among them, the upper end of the motor 3 is connected to the planetary reducer 5, the upper end of the planetary reducer 5 is connected to the reducer 6, the other end of the reducer 6 is connected to the upper end of the two-stage screw lifting device 4, the lower end of the two-stage screw lifting device 4 is connected to the jacking device 1, and the jacking device 1 is sleeved with the support 2; the two-stage screw lifting device 4 and the jacking device 1 can realize the synchronous lifting of multiple screws. The two-stage screw lifting device 4 and the jacking device 1 are connected through the support 2. The jacking device 1, the support 2, the motor 3, the two-stage screw lifting device 4, the planetary reducer 5, and the reducer 6 are all symmetrically arranged. The two-stage screw lifting device 4 is of a sleeved structure.

[0052] In this embodiment, after the motor 3 starts to rotate forward, it drives the two-stage screw lifting device 4 through the planetary reducer 5 and the reducer 6, and the two-stage screw lifting device 4 realizes the lifting of the bridge deck through the jacking device 1, thereby realizing the opening of the opening bridge. After the motor 3 starts to rotate reversely, it drives the two-stage screw lifting device 4 through the planetary reducer 5 and the reducer 6, and the two-stage screw lifting device 4 realizes the lowering of the bridge deck through the jacking device 1, thereby realizing the closing of the opening bridge.

[0053] In this embodiment, the motor 3 provides lifting power; the two-stage screw lifting device 4 realizes the lifting and lowering of the bridge deck; the planetary reducer 5 reduces the rotation speed of the motor 3 by a certain reduction ratio and transmits the power to the reducer 6; the reducer 6 reduces the power by a certain reduction ratio and transmits the power to the two-stage screw lifting device 4. Through this embodiment, the opening bridge can be lifted synchronously and has self-locking.

[0054] In this embodiment, the control module further includes a sensor assembly for real-time monitoring of key parameters during the lifting process, such as rotation speed, load, displacement, etc., and feeding back the monitoring data to the control system for precise control and adjustment of the lifting process to ensure the smoothness and safety of the lifting action.

[0055] In this embodiment, the lifting module is also provided with a safety locking device. During the lifting process, when abnormal situations are detected, such as the load exceeding the set value or the lifting speed being abnormal, the safety locking device can quickly lock the lifting mechanism to prevent the bridge deck from rising or falling accidentally, thus ensuring the safety of personnel and equipment.

[0056] In this embodiment, the opening process of the opening bridge is as follows: After the motor 3 starts to rotate forward, it drives the secondary lead screw lifting device 4 through the planetary reducer 5 and the reducer 6. The secondary lead screw lifting device 4 realizes the lifting of the bridge deck through the jacking device 1, thereby realizing the opening of the opening bridge. When the opening bridge is in the open state, the front view of its structure is as Figure 2 shown, and the left view is as Figure 3 shown.

[0057] In this embodiment, the closing process of the opening bridge is as follows: After the motor 3 starts to rotate reversely, it drives the secondary lead screw lifting device 4 through the planetary reducer 5 and the reducer 6. The secondary lead screw lifting device 4 realizes the lowering of the bridge deck through the jacking device 1, thereby realizing the closing of the opening bridge. When the opening bridge is in the closed state, the front view of its structure is as Figure 4 shown, the left view is as Figure 5 shown, and the top view is as Figure 6 shown.

[0058] In summary, this lifting method enables the bridge to be lifted or lowered according to actual needs to facilitate the passage of ships or aircraft, and can effectively cope with complex and changeable marine environments, including factors such as waves and tides, maintaining the stability and safety of the bridge. Generally speaking, this method can effectively solve the limitations of the prior art and provide a more convenient and reliable passage for waterway transportation.

[0059] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A lifting system for a bascule bridge, characterized in that: The system includes two identical subsystems, which are symmetrically arranged on the entrance and exit sides of the bascule bridge. The subsystems include a control module, a power module and a lifting module. The control module is connected to the power module and is used to control the starting of the power module; The power module is connected to the lifting module, and the power module comprises a motor (3), a planetary reducer (5) and a reducer (6), which are used to output the rotation speed and complete the deceleration adjustment to synchronize the lifting process of the opening bridge; The lifting module is connected to the opening bridge, and the module uses the rotation speed output by the power module to realize the lifting and lowering of the opening bridge.

2. A bascule bridge lifting system according to claim 1, characterized in that: The motor (3) in the power module is used to generate power; the motor (3) is started in forward rotation to achieve the lifting of the bridge deck, thereby achieving the opening of the opening bridge; the motor (3) is started in reverse rotation to achieve the lowering of the bridge deck, thereby achieving the closing of the opening bridge.

3. The bascule bridge lifting system according to claim 1, characterized in that: One end of the planetary reducer (5) in the power module is connected to the motor (3), and the other end is connected to the reducer (6).

4. The bascule bridge lifting system according to claim 1, characterized in that: The lifting module comprises a multi-stage screw lifting device (4), a support (2) and a lifting device (1), wherein one end of the multi-stage screw lifting device (4) is connected to the lifting device (1) via the support (2), and the other end is connected to the reducer (6) in the control module.

5. The bascule bridge lifting system according to claim 4, characterized in that: The multi-stage screw lifting device (4) is a sleeve structure.

6. The bascule bridge lifting system according to claim 4, characterized in that: The multi-stage screw rod is provided with a self-locking thread.

7. The bascule bridge lifting system according to claim 1, characterized in that: The lifting module is also provided with a position sensor and a load sensor for real-time monitoring of the position and load condition of the lifting module and feeding back the monitoring data to the control module.

8. The bascule bridge lifting system according to claim 7, characterized in that: The control module is connected to a safety locking device. When the position sensor and the load sensor detect an abnormal situation during the lifting process, the safety locking device is activated to lock the lifting module.

9. A bascule bridge lifting system according to claim 8, characterized in that: The safety locking device adopts an electromagnetic brake.

10. A method for lifting a bascule bridge, characterized in that: The method is applied to a lifting system for an opening bridge as described in any one of claims 1 to 9, and the specific steps of the method are: first, the control module controls the start-up of the power module, the power module outputs the speed and completes the deceleration adjustment, and then the lifting module uses the adjusted speed to complete the lifting and lowering of the bridge deck, thereby realizing the opening and closing of the opening bridge.

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