Synchronous control system of winch type vertical ship lifting equipment suitable for multiple working conditions

Abstract

The utility model discloses a synchronous control system of winch type vertical ship lifting equipment suitable for multiple working conditions, and relates to the technical field of ship equipment, in particular to the synchronous control system of the winch type vertical ship lifting equipment suitable for the multiple working conditions, which comprises a ship bearing platform, and an electrical room and a control room which are respectively arranged on two sides of the ship bearing platform, a plurality of first lifting point devices and second lifting point devices are arranged on the two sides of the ship bearing platform correspondingly. The first lifting point device and the second lifting point device respectively comprise corresponding winch motors; the control room comprises a plurality of first control cabinets, a first power supply cabinet, an operation table and a first frequency conversion cabinet; the electrical room comprises a second control cabinet, a second power supply cabinet and a second frequency conversion cabinet; the first frequency conversion cabinet comprises a plurality of first frequency converters; the second frequency conversion cabinet comprises a plurality of second frequency converters; all the hoisting point devices can be controlled in a centralized mode through the operation table in the control room, and all the winch motors can be accurately monitored.

Description

Technical Field

[0001] The present application relates to the technical field of ship equipment, and in particular to a synchronous control system for winch-type vertical ship lifting equipment that is adaptable to multiple working conditions. Background Art

[0002] The ship launching device is the core resource of a shipyard and directly affects the production capacity of the shipyard. At present, the ship launching methods adopted in China include airbag launching, gravity launching, dock launching, comb-type slideway launching, vertical ship lift, etc. Airbag launching and gravity launching have the advantages of economy and convenience, but their safety and controllability are poor, and may even affect navigation. The most common floating launching is dock launching, which has the advantages of safety and controllability, but the disadvantages are high cost and maintenance cost, large area, and cannot meet the launching needs of multiple slipway workstation products. It is generally not suitable for small and medium-sized shipyards. Comb-type slideway launching has the advantages of stable operation and good adaptability, but the disadvantage is that it occupies a large area and may affect navigation. Compared with other launching methods, vertical ship lifts have the advantages of small footprint, no impact on navigation, stable operation, high efficiency, good adaptability, and moderate cost, but the existing vertical ship lifts can lift small tonnage of ships.

[0003] As the tonnage of ships being built increases, existing vertical ship lifts are unable to meet the needs of landing and launching large-tonnage ships. Utility Model Content

[0004] The purpose of the utility model is to avoid the shortcomings of the prior art and provide a vertical ship lifting equipment technology that can adapt to various working conditions.

[0005] The purpose of the utility model is achieved through the following technical solutions:

[0006] A synchronous control system for winch-type vertical ship lifting equipment adaptable to multiple working conditions comprises: a ship supporting platform, and an electrical room and a control room respectively arranged on both sides of the ship supporting platform; a plurality of first lifting point devices and a second lifting point devices are respectively arranged on both sides of the ship supporting platform; the first lifting point device and the second lifting point device respectively comprise corresponding winch motors; the winch motors are respectively connected to the ship supporting platform through connected cables; the control room comprises a plurality of first control cabinets, a first power supply cabinet, an operating table and a first frequency conversion cabinet; the electrical room comprises a second control cabinet, a second power supply cabinet and a second frequency conversion cabinet; the first frequency conversion cabinet comprises a plurality of first frequency converters; the second frequency conversion cabinet comprises a plurality of second frequency converters; the operating table is connected to the first control cabinet, the first control cabinet is respectively connected to the second control cabinet and the first frequency conversion cabinet, and the second control cabinet is connected to the second frequency conversion cabinet; the first power supply cabinet is connected to the first control cabinet, and the second power supply cabinet is connected to the second control cabinet; the first control cabinet is respectively connected to each first lifting point device; the second control cabinet is respectively connected to each second lifting point device; each first frequency converter is respectively connected to each first lifting point device; each second frequency converter is respectively connected to each second lifting point device.

[0007] Specifically, the first lifting point device and the second lifting point device respectively include corresponding brakes; the brakes are connected to the corresponding hoisting motors; the first frequency converter and the second frequency converter are respectively connected to the corresponding brakes.

[0008] More specifically, a corresponding incremental encoder is also provided on the output shaft of the hoisting motor, and the incremental encoder is connected to the corresponding first frequency converter or the second frequency converter.

[0009] More specifically, the hoisting motor is also connected to a reducer, which is connected to the cable; an absolute encoder is also provided on the output shaft of the reducer, which is connected to the first control cabinet or the second control cabinet respectively.

[0010] More specifically, the first hanging point device and the second hanging point device are also provided with corresponding load sensors, respectively, and the load sensors are connected to the first control cabinet or the second control cabinet, respectively.

[0011] In another specific embodiment, the first lifting point device and the second lifting point device are also respectively provided with corresponding pulley blocks; the first lifting point device and the second lifting point device are respectively connected to the corresponding pulley blocks through corresponding cables; the pulley blocks include movable pulley blocks, and the movable pulley blocks are arranged on the lifting point beam of the ship-supporting platform.

[0012] More specifically, the first suspension point device and the second suspension point device are also provided with corresponding locking mechanisms respectively; the locking mechanisms are used to lock the position of the movable pulley block.

[0013] In the above, the ship-carrying platform includes a land-end platform and a water-end platform; a plurality of first lifting point devices and second lifting point devices are respectively provided on both sides of the land-end platform and the water-end platform; the first lifting point devices and the second lifting point devices are symmetrically arranged.

[0014] Furthermore, the land-end platform and the water-end platform respectively include corresponding lifting point beams; and a first lifting point device and a second lifting point device are respectively provided at both ends of each lifting point beam.

[0015] Furthermore, the land-side platform includes 6 sets of lifting beams; the water-side platform includes 5 sets of lifting beams.

[0016] The beneficial effects achieved by the utility model include: a synchronous control system for winch-type vertical ship lifting equipment that is adaptable to multiple working conditions, comprising: a ship supporting platform, and an electrical room and a control room respectively arranged on both sides of the ship supporting platform; a plurality of first lifting point devices and a second lifting point devices are respectively arranged on both sides of the ship supporting platform; the first lifting point devices and the second lifting point devices respectively include corresponding winch motors; the control room includes a plurality of first control cabinets, a first power supply cabinet, an operating table and a first frequency conversion cabinet; the electrical room includes a second control cabinet, a second power supply cabinet and a second frequency conversion cabinet; the first frequency conversion cabinet includes a plurality of first frequency converters; the second frequency conversion cabinet includes a plurality of second frequency converters; each lifting point device can be centrally controlled through the operating table in the control room, and accurate monitoring of each winch motor can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, a brief introduction will be given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 It is a schematic block diagram of the electrical principle of a synchronous control system of a winch-type vertical ship lift equipment that is adaptable to multiple working conditions according to an embodiment of the present application;

[0019] Figure 2 It is a schematic diagram of the layout of a synchronous control system of a winch-type vertical ship lift equipment adapted to multiple working conditions according to an embodiment of the present application;

[0020] Figure 3 This is a schematic diagram of the cable connection of the suspension points on the control room side of a synchronous control system of a winch-type vertical ship lift equipment that is suitable for multiple working conditions according to an embodiment of the present application;

[0021] Figure 4 This is a schematic diagram of the cable connection of the hanging points on the electrical room side of a synchronous control system of a multi-working condition winch-type vertical ship lifting equipment according to an embodiment of the present application. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described through the implementation method with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0023] Example 1

[0024] One of the implementation methods of the synchronous control system of the winch-type vertical ship lift equipment adapted to multiple working conditions of the present application is as follows: Figures 1 to 4 As shown, it includes: a ship-carrying platform, and an electrical room and a control room respectively arranged on both sides of the ship-carrying platform;

[0025] A plurality of first lifting point devices and second lifting point devices are respectively arranged on both sides of the ship supporting platform; the first lifting point devices and the second lifting point devices respectively include corresponding winches and are connected to the ship supporting platform through the winches.

[0026] Specifically, the ship-carrying platform includes a land-end platform, a water-end platform and a transition platform; a plurality of first lifting point devices and second lifting point devices are respectively arranged on both sides of the land-end platform and the water-end platform; the first lifting point devices and the second lifting point devices are symmetrically arranged. The transition platform is movably arranged at a position between the land-end platform and the water-end platform.

[0027] More specifically, the land-end platform and the water-end platform include corresponding suspension point beams respectively; and a first suspension point device and a second suspension point device are respectively provided at both ends of each suspension point beam.

[0028] In this embodiment, the land-side platform includes 6 sets of suspension beams, corresponding to the 1# to 12# suspension points in the figure, and the water-side platform includes 5 sets of suspension beams, corresponding to the 13# to 22# suspension points in the figure, and the winches corresponding to each suspension point are respectively connected to the corresponding frequency converter. As shown in the figure, there are several first frequency converter cabinets and second frequency converter cabinets.

[0029] The control room includes a plurality of first control cabinets, a first power cabinet, an operation table and a first frequency conversion cabinet; the electrical room includes a second control cabinet, a second power cabinet and a second frequency conversion cabinet; the first frequency conversion cabinet includes a plurality of first frequency converters; the second frequency conversion cabinet includes a plurality of second frequency converters;

[0030] The operating table is connected to the first control cabinet, the first control cabinet is respectively connected to the second control cabinet and the first frequency conversion cabinet, the second control cabinet is connected to the second frequency conversion cabinet; the first power cabinet is connected to the first control cabinet, the second power cabinet is connected to the second control cabinet; the first control cabinet is respectively connected to each first lifting point device; the second control cabinet is respectively connected to each second lifting point device; each first frequency converter is respectively connected to each first lifting point device; each second frequency converter is respectively connected to each second lifting point device. The synchronous control system of the present application, which is suitable for multi-working condition winch-type vertical ship lifting equipment, can centrally control each lifting point device through the operating table in the control room, and each winch is equipped with a frequency converter for control, so as to realize accurate monitoring of each drive motor.

[0031] In this embodiment, each first lifting point device and the second lifting point device are also provided with a corresponding local control cabinet, so that the winch can be individually controlled on site at each lifting point, which is convenient for maintenance. Specifically, the local control cabinet includes a plurality of operation button switches and is connected to the first control cabinet or the second control cabinet. When operating on site at the lifting point, the command is transmitted to the first control cabinet or the second control cabinet through a cable, and then outputted through the first control cabinet or the second control cabinet to control the corresponding inverter to drive the winch motor, thereby realizing the operation function of the local control cabinet.

[0032] Specifically, the hoist includes a corresponding hoisting motor and a brake, and the brake is connected to the corresponding hoisting motor; the first frequency converter and the second frequency converter are respectively connected to the corresponding brake.

[0033] More specifically, a corresponding incremental encoder is also provided on the output shaft of the hoisting motor, and the incremental encoder is connected to the corresponding first frequency converter or second frequency converter, which can directly reflect the dynamic performance of the speed and position of the variable frequency motor, provide accurate feedback signals for the motor, thereby realizing closed-loop control (speed closed-loop, position closed-loop), and enabling the motor to work more stably and reliably.

[0034] More specifically, the winch motor is also connected to a reducer, which is connected to the cable; an absolute encoder is also provided on the output shaft of the reducer, which is connected to the first control cabinet or the second control cabinet. The absolute encoder is used to detect the lifting height of the ship-carrying platform, so that the controller and the frequency converter can implement position closed-loop control more quickly and accurately.

[0035] More specifically, the first lifting point device and the second lifting point device are also provided with corresponding load sensors, which are connected to the first control cabinet or the second control cabinet respectively. The load sensors are used to perform compliance detection on each lifting point and feed back the detected load signal to the corresponding first controller or the second controller. By configuring load sensors, optimizing control programs and other measures, the safety and reliability of the operation of the winch-type vertical ship lifting equipment can be improved.

[0036] In another specific embodiment, the first lifting point device and the second lifting point device further include corresponding pulley blocks; the winch is connected to the corresponding pulley blocks via corresponding cables; the pulley blocks include movable pulley blocks, and the movable pulley blocks are arranged on the lifting point beam of the ship-supporting platform.

[0037] More specifically, the first suspension point device and the second suspension point device are also provided with corresponding locking mechanisms respectively; the locking mechanisms are provided with latches for locking the position of the movable pulley block.

[0038] Note that the above are only preferred embodiments of the present application and the technical principles used. Those skilled in the art will understand that the present application is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present application. Therefore, although the present application is described in more detail through the above embodiments, the present application is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present application, and the scope of the present application is determined by the scope of the appended claims.

Claims

1. A synchronous control system for a winch-type vertical ship lift that is adaptable to multiple working conditions, characterized in that: include: The ship-carrying platform, and the electrical room and control room respectively located on both sides of the ship-carrying platform; A plurality of first lifting point devices and a second lifting point device are respectively provided on both sides of the ship supporting platform; the first lifting point device and the second lifting point device respectively include corresponding hoisting motors; the hoisting motors are respectively connected to the ship supporting platform through connected cables; The control room includes a plurality of first control cabinets, a first power cabinet, an operation table and a first frequency conversion cabinet; the electrical room includes a second control cabinet, a second power cabinet and a second frequency conversion cabinet; the first frequency conversion cabinet includes a plurality of first frequency converters; the second frequency conversion cabinet includes a plurality of second frequency converters; The operating table is connected to the first control cabinet, the first control cabinet is respectively connected to the second control cabinet and the first frequency conversion cabinet, and the second control cabinet is connected to the second frequency conversion cabinet; the first power supply cabinet is connected to the first control cabinet, and the second power supply cabinet is connected to the second control cabinet; the first control cabinet is respectively connected to each first hanging point device; the second control cabinet is respectively connected to each second hanging point device; each first frequency converter is respectively connected to each first hanging point device; each second frequency converter is respectively connected to each second hanging point device.

2. According to claim 1, a synchronous control system for a winch-type vertical ship lift that is adaptable to multiple working conditions is characterized in that: The first lifting point device and the second lifting point device respectively include corresponding brakes; the brakes are connected to the corresponding hoisting motors; The first frequency converter and the second frequency converter are respectively connected to corresponding brakes.

3. A synchronous control system for a winch-type vertical ship lift equipment adapting to multiple working conditions according to claim 2, characterized in that: A corresponding incremental encoder is also provided on the output shaft of the hoisting motor, and the incremental encoder is connected to the corresponding first frequency converter or second frequency converter.

4. The synchronous control system of the winch-type vertical ship lift equipment adapted to multiple working conditions according to claim 3 is characterized in that: The hoisting motor is also connected to a reducer, and the reducer is connected to the cable; An absolute value encoder is also provided on the output shaft of the reducer, and the absolute value encoder is connected to the first control cabinet or the second control cabinet respectively.

5. The synchronous control system of the winch-type vertical ship lift equipment adapted to multiple working conditions according to claim 4 is characterized in that: The first hanging point device and the second hanging point device are also respectively provided with corresponding load sensors, and the load sensors are respectively connected to the first control cabinet or the second control cabinet.

6. The synchronous control system of a winch-type vertical ship lift equipment adapting to multiple working conditions according to claim 1 is characterized in that: The first suspension point device and the second suspension point device are also respectively provided with corresponding pulley blocks; the first suspension point device and the second suspension point device are respectively connected to the corresponding pulley blocks through corresponding cables; The pulley block comprises a movable pulley block, and the movable pulley block is arranged on the hanging point beam of the ship supporting platform.

7. The synchronous control system of the winch-type vertical ship lift equipment adapted to multiple working conditions according to claim 6 is characterized in that: The first lifting point device and the second lifting point device are also respectively provided with corresponding locking mechanisms; The locking mechanism is used to lock the position of the movable pulley block.

8. A synchronous control system for a winch-type vertical ship lift adapted to multiple working conditions according to any one of claims 1 to 7, characterized in that: The ship-carrying platform includes a land-side platform and a water-side platform; A plurality of the first suspension point devices and the second suspension point devices are respectively provided on both sides of the land end platform and the water end platform; The first suspension point device and the second suspension point device are symmetrically arranged.

9. The synchronous control system of the winch-type vertical ship lift equipment adapted to multiple working conditions according to claim 8 is characterized in that: The land-side platform and the water-side platform respectively include corresponding suspension beams; The first hanging point device and the second hanging point device are respectively provided at both ends of each hanging point beam.

10. The synchronous control system of the winch-type vertical ship lift equipment adapting to multiple working conditions according to claim 9 is characterized in that: The land-end platform comprises 6 groups of suspension beams; The water end platform includes 5 groups of suspension beams.

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