Overwater movable portal frame

Abstract

The utility model discloses an overwater movable portal frame which comprises a buoyancy tank, a steel plate base, a portal frame body, a walking trolley and a lifting hook device. The buoyancy tanks are sealed tank bodies and fixedly connected to the bottoms of the steel plate bases, the two steel plate bases are arranged in parallel at intervals, and sliding rails are arranged on the tops of the steel plate bases in the length direction. Rolling wheel sets are arranged at the bottoms of stand columns of the portal frame and embedded in the sliding rails, so that the portal frame can integrally move along the sliding rails, hydraulic supporting legs are installed on the outer sides of the two stand columns through supporting leg control bases, and the supporting leg control bases are used for controlling the hydraulic supporting legs to stretch out and draw back in the vertical direction so as to be supported at the water bottom; the walking trolley is arranged on the top of a beam of the portal frame and can move along the beam, and the lifting hook device is arranged on the walking trolley and used for lifting construction materials. The portal frame is reasonable in structure and convenient to use, the mode that floating and bottoming supporting are combined is adopted, flexible movement and stable supporting of the portal frame are guaranteed, construction efficiency is improved, and construction cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of waterborne operation equipment, and in particular to a mobile gantry crane for waterborne operations. Background Technology

[0002] In some complex waterways, such as shallow waters and nearshore areas, there are various construction operations that require the use of existing technologies. These often necessitate the erection of temporary platforms or the use of foam floats for material assembly and transportation. These construction solutions typically require a large workforce and are characterized by being time-consuming, costly, and inefficient.

[0003] Therefore, how to create a new type of mobile gantry crane on water is one of the important research and development topics at present. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a mobile gantry crane on water, which can be moved to the working area by means of a pontoon and then supported on the bottom of the water by hydraulic support legs, so as to realize the transportation and hoisting of materials, improve construction efficiency, reduce construction costs, and thus overcome the shortcomings of the prior art.

[0005] To solve the above-mentioned technical problems, this utility model provides a mobile gantry crane on water, including a pontoon, a steel plate base, a gantry crane, a traveling trolley, and a hook device;

[0006] The pontoon is a sealed box body, fixedly connected to the bottom of the steel plate base. The two steel plate bases are arranged in parallel and spaced apart. A slide rail is provided on the top of the steel plate base along the length direction.

[0007] The bottom of the column of the gantry frame is equipped with a roller assembly, which is embedded in the slide rail, so that the gantry frame can move as a whole along the slide rail. Hydraulic support legs are installed on the outside of the two columns through the support leg control seat. The support leg control seat is used to control the extension and retraction of the hydraulic support legs in the vertical direction to support the bottom of the water.

[0008] The traveling trolley is mounted on the top of the crossbeam of the gantry and can move along the crossbeam. The hook device is mounted on the traveling trolley and is used to lift construction materials.

[0009] As an improvement of this utility model, a material storage platform is also provided between the steel plate bases, and the material storage platform adopts a honeycomb grid steel plate.

[0010] Furthermore, the traveling trolley includes a load-bearing wheel, a guide wheel, and a hysteresis brake motor. The load-bearing wheel is located at the top of the upper flange of the crossbeam, and the guide wheel is located at the bottom of the lower flange of the crossbeam. The hysteresis brake motor is used to drive the traveling trolley to move.

[0011] Furthermore, the hook device includes a wire rope and a hook assembly, with the top of the wire rope connected to the traveling trolley and the bottom connected to the hook assembly.

[0012] Furthermore, a pressure sensor is installed at the bottom of the hydraulic support leg. The pressure sensor is electrically connected to the support leg control seat and is used to monitor the pressure at the bottom of the hydraulic support leg and adjust the stroke according to the pressure.

[0013] With this design, the present invention has at least the following advantages:

[0014] 1. The bottom-fixing method combining the pontoon and hydraulic support legs can effectively ensure the stability of the gantry and also facilitate its movement to the designated work area without the need to build a temporary work platform, thereby improving construction efficiency and reducing construction costs.

[0015] 2. It has a reasonable structure, is easy to use, and is suitable for widespread application. Attached Figure Description

[0016] The above is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model, the following describes this utility model in further detail with reference to the accompanying drawings and specific embodiments.

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0018] Figure 2 This is a front view structural diagram of this utility model.

[0019] Figure 3 This is a side view of the structure of this utility model.

[0020] Figure 4 This is a top view of the structure of this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Floating box; 2. Steel plate base; 3. Hydraulic support leg; 4. Outrigger control seat; 5. Column; 501. Slide rail; 502. Roller assembly; 6. Crossbeam; 7. Traveling trolley; 701. Load-bearing wheel; 702. Hysteresis brake motor; 703. Guide wheel; 8. Hook device; 801. Wire rope; 802. Hook assembly; 9. Material storage platform. Detailed Implementation

[0022] Please see Figures 1 to 4 This utility model provides a mobile gantry crane on water, including a pontoon 1, a steel plate base 2, a gantry crane, a traveling trolley 7, a hook device 8, and a material storage platform 9.

[0023] The pontoon 1 is a sealed enclosure fixedly connected to the bottom of the steel plate base 2, providing buoyancy for the steel plate base 2 and the gantry frame, allowing them to float on the water surface. With the aid of an externally mounted propeller, the steel plate base 2 and the gantry frame can be moved to a designated water operation area.

[0024] The steel plate base 2 is elongated, with two steel plate bases 2 arranged parallel to each other. Each steel plate base 2 has a slide rail 501 installed on its top along its length. A material storage platform 9 is also provided between the two steel plate bases 2. This material storage platform 9 is made of honeycomb grating steel plate and is used to store construction materials.

[0025] The gantry includes hydraulic support legs 3, support leg control seats 4, columns 5, and crossbeams 6.

[0026] The two uprights 5 and the top beam 6 together form a portal frame structure. The bottom of the two uprights 5 is equipped with roller assembly 502 that matches the slide rail 501. The roller assembly 502 is embedded in the slide rail 501, so that the entire gantry frame can move along the slide rail 501.

[0027] The hydraulic support legs 3 are mounted on the outside of the two columns 5 via support leg control seats 4. The support leg control seats 4 contain a hydraulic control system that can control the vertical extension and retraction of the hydraulic support legs 3. When the gantry crane arrives at the designated working area, the hydraulic support legs 3 extend downwards and support the bottom of the water, ensuring the overall stability of the gantry crane.

[0028] In this embodiment, a pressure sensor is also installed at the bottom of the hydraulic support leg 3. The pressure sensor is electrically connected to the support leg control seat 4 to monitor the pressure at the bottom of the hydraulic support leg 3 in real time. During the material hoisting process, as the construction materials are gradually hoisted into place, the overall weight of the platform gradually decreases, and the gantry frame tends to float upwards. At this time, the pressure sensor detects the pressure change and transmits the data to the support leg control seat 4. The support leg control seat 4 adjusts the stroke of the hydraulic support leg 3 so that it can always maintain bottom support.

[0029] The traveling trolley 7 is mounted on top of the crossbeam 6 of the gantry frame. The traveling trolley 7 includes load-bearing wheels 701, guide wheels 702, and a hysteresis brake motor 703. The load-bearing wheels 701 are located at the top of the upper flange of the crossbeam 6, and the guide wheels 702 are located at the bottom of the lower flange of the crossbeam 6. The two are connected by a frame structure, forming a limiting and guiding mechanism for the traveling trolley 7, enabling it to move along the crossbeam 6. The hysteresis brake motor 703 is the power device that drives the traveling trolley 7.

[0030] The hook device 8 is installed on the traveling trolley 7 and specifically includes a wire rope 801 and a hook assembly 802. The top of the wire rope 801 is connected to the bottom of the traveling trolley 7 via a reel, and the bottom of the wire rope 801 is connected to the hook assembly 802. The hook device 8 is used to lift construction materials.

[0031] This utility model has a reasonable structure and is easy to use. It adopts a combination of floating and bottom-touching support to ensure flexible movement and stable support of the gantry, thereby improving construction efficiency and reducing construction costs.

[0032] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent changes or alterations made by those skilled in the art using the above-disclosed technical content shall fall within the protection scope of the present utility model.

Claims

1. A mobile gantry crane for water transport, characterized in that, Includes pontoon, steel plate base, gantry frame, traveling trolley and hook device; The pontoon is a sealed box body, fixedly connected to the bottom of the steel plate base. The two steel plate bases are arranged in parallel and spaced apart. A slide rail is provided on the top of the steel plate base along the length direction. The bottom of the column of the gantry frame is equipped with a roller assembly, which is embedded in the slide rail, so that the gantry frame can move as a whole along the slide rail. Hydraulic support legs are installed on the outside of the two columns through the support leg control seat. The support leg control seat is used to control the extension and retraction of the hydraulic support legs in the vertical direction to support the bottom of the water. The traveling trolley is mounted on the top of the crossbeam of the gantry and can move along the crossbeam. The hook device is mounted on the traveling trolley and is used to lift construction materials.

2. The mobile gantry crane on water according to claim 1, characterized in that, A material storage platform is also provided between the steel plate bases, and the material storage platform is made of honeycomb grating steel plate.

3. A mobile gantry crane on water according to claim 1, characterized in that, The traveling trolley includes load-bearing wheels, guide wheels, and a hysteresis brake motor. The load-bearing wheels are located at the top of the upper flange of the crossbeam, and the guide wheels are located at the bottom of the lower flange of the crossbeam. The hysteresis brake motor is used to drive the traveling trolley to move.

4. A mobile gantry crane on water according to claim 1, characterized in that, The hook device includes a wire rope and a hook assembly. The top of the wire rope is connected to the traveling trolley, and the bottom is connected to the hook assembly.

5. A mobile gantry crane on water according to claim 1, characterized in that, A pressure sensor is installed at the bottom of the hydraulic support leg. The pressure sensor is electrically connected to the support leg control seat and is used to monitor the pressure at the bottom of the hydraulic support leg and adjust the stroke according to the pressure.

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