Double-layer g-shaped gantry crane sliding contact line support

Abstract

The utility model discloses a double -deck G type portal crane slide contact line support, including base, bottom and the horizontal eccentricity connection of base stand, the bracket of L type and the connection of stand, the top back side of stand is fixedly connected in the overhanging end top of horizontal bracket, and the bottom fixed connection of vertical bracket is in the overhanging end top of horizontal bracket, still including lower longitudinal beam and upper longitudinal beam, and lower longitudinal beam is connected between stand, and upper longitudinal beam is connected between the top of vertical bracket, still including lower cantilever beam and upper cantilever beam, and lower cantilever beam is connected in the top of lower longitudinal beam, and upper cantilever beam is connected in the top of upper longitudinal beam, and contact line fixedly connected on cantilever beam. The utility model discloses a unique G type support, realizes two layers slide contact line with a set of steel pipe stand through the structure design, realizes the slide contact line with the arrangement of two layers, does not interfere with each other, can effectively reduce the slide contact line projection width, adapts the space limited condition between support leg, reduces the steel consumption.

Description

Technical Field

[0001] This utility model belongs to the field of gantry crane sliding contact line brackets, and in particular a double-layer G-type gantry crane sliding contact line bracket. Background Technology

[0002] In highway precast beam yards, to optimize space utilization and reduce operational conflicts between two shared-rail gantry cranes, a "large gantry crane nested within a small gantry crane" hoisting method is often adopted. This scheme sets up two sets of parallel rails, with the large gantry crane handling heavy-tonnage operations such as lifting and moving beams, while the built-in small gantry crane is used for lifting lighter components and other lighter-tonnage operations. As a safe and flexible power supply method for gantry cranes, the sliding contact line typically requires two rows of independent sliding contact line supports to provide power to both the large and small gantry cranes. Sufficient safety distance must also be reserved between each row of supports and the gantry crane legs, which not only increases the footprint but also raises construction costs. Therefore, seeking a reasonable layout design to save costs and reduce land occupation is particularly important.

[0003] There are two main traditional methods for arranging sliding contact lines: One method involves arranging a row of sickle-shaped supports on one side of the gantry crane. This structure typically consists of steel pipe columns, crossbeams, and cantilevered angle steel welded at certain intervals to one side of the crossbeams. The sliding contact line is fixed to the angle steel. However, this sickle-shaped support system can only be used by a single gantry crane; for two gantry cranes, two rows of sickle-shaped supports are needed, increasing the amount of steel pipe support required. The other method involves setting up T-shaped supports between the two gantry cranes. Angle steel is welded horizontally at certain intervals to both sides of the steel pipe crossbeam between the steel pipe columns, and then the sliding contact line is fixed to both ends of the angle steel. The sliding contact lines on both sides are arranged side-by-side at the same height. While this saves one row of columns, it requires twice the space and is often unsuitable for situations where space between the gantry crane outriggers is limited.

[0004] With the increasing application scenarios and spans of large-scale gantry cranes, the outriggers of these cranes are often designed with a V-shaped structure to enhance rigidity, resulting in a continuous compression of the space between the outriggers. The aforementioned traditional methods, which require two rows of supports or occupy twice the width, are even more difficult to implement in limited spaces, highlighting the urgent need for new types of sliding contact line supports that occupy less space. Utility Model Content

[0005] The purpose of this utility model is to provide a double-layer G-type gantry crane sliding contact line support. It aims to solve the problem that in the case of a large gantry crane supporting a small gantry crane, the existing sickle-type sliding contact line support needs to provide two rows, which occupies a lot of space and increases the amount of steel pipe support. It also aims to solve the technical problem that the existing T-type sliding contact line support requires twice the space and is not suitable for situations where the space between the V-type outriggers of the gantry crane is limited.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A double-layer G-type gantry crane conductor rail support is a G-type frame located between the two gantry crane legs, comprising: The foundations are spaced between the track foundations of the two gantry cranes; The columns are set up one-to-one with the foundations, and the bottom of the columns are connected to the foundations laterally and eccentrically. The two sides of the columns are the eccentric side and the back side, respectively. The brackets are L-shaped and are set one-to-one with the columns. They include horizontal brackets and vertical brackets. The horizontal brackets are cantilevered and fixedly connected to the top back side of the column, and the bottom of the vertical brackets is fixedly connected to the top of the cantilever end of the horizontal bracket. The longitudinal beams include lower longitudinal beams and upper longitudinal beams. The lower longitudinal beams are fixedly connected longitudinally between adjacent columns, and the top surface elevation is lower than the bottom surface elevation of the horizontal corbels. The upper longitudinal beams are fixedly connected between the tops of adjacent vertical corbels. The cantilever beam, parallel to the horizontal corbel, includes a row of lower cantilever beams and a row of upper cantilever beams. The lower cantilever beams are cantilevered at intervals to the top of the lower longitudinal beams, with the cantilever ends facing the back side. The upper cantilever beams are cantilevered at intervals to the top of the upper longitudinal beams, with the cantilever ends facing the eccentric side. The sliding conductor rail is fixedly connected to the corresponding cantilever beam via connectors.

[0007] A connecting steel plate is embedded in the center of the top surface of the foundation, and the column is a square steel pipe. The bottom surface of the column is fixedly connected to the top surface of the connecting steel plate.

[0008] The degree of eccentric connection between the column and the connecting steel plate should be such that the overall center of gravity of the G-frame is on the same vertical line as the center of the foundation.

[0009] Both the corbels and longitudinal beams are made of square steel tubing. The dimensions of the horizontal corbels are the same as those of the columns, while the dimensions of the horizontal corbels are larger than those of the vertical corbels. The dimensions of the vertical corbels are the same as those of the longitudinal beams.

[0010] The top surface elevation of the lower cantilever beam is lower than the bottom surface elevation of the horizontal corbel.

[0011] The cantilever beam is made of angle steel and includes horizontal connecting legs and vertical connecting legs. The connecting end of the horizontal connecting leg is fixedly connected to the top surface of the corresponding longitudinal beam. The cantilevered part of the horizontal connecting leg has connecting holes of the connector spaced apart.

[0012] The lower cantilever beams and the upper cantilever beams are set up in a one-to-one correspondence, and the angle steel openings of the lower cantilever beams and the upper cantilever beams face opposite directions.

[0013] The conductor rail consists of a lower conductor rail and an upper conductor rail. The lower conductor rail is fixedly connected to the lower cantilever beam, corresponding to the gantry crane on the back side, while the upper conductor rail is fixedly connected to the upper cantilever beam, corresponding to the gantry crane on the eccentric side.

[0014] Compared with the prior art, this utility model has the following features and beneficial effects: This invention avoids the problem of parallel distribution of sliding contact lines at the same height in T-type brackets. It adopts a unique G-type bracket with a single-sided steel bracket frame on the column. Through structural design, two layers of sliding contact lines are supported by a single set of steel pipe columns, and cantilever angle steel is used to support the sliding contact lines. This allows the sliding contact lines to be arranged in two layers, enabling both layers to supply power to the left and right gantry cranes simultaneously without interference. At the same time, the double-layer arrangement can effectively reduce the projected width of the sliding contact lines and adapt to the limited space between the outriggers. Compared with the existing technology, it solves the problems of limited space and excessive steel consumption.

[0015] This utility model is generally applicable to gantry cranes with various outrigger types on the market, especially suitable for situations where the clearance between outriggers is limited. It is safe, reliable, easy to assemble, and significantly saves costs.

[0016] This utility model is applicable to the construction of precast beam yards in highway engineering. Attached Figure Description

[0017] The present invention will now be described in further detail with reference to the accompanying drawings.

[0018] Figure 1 This is a schematic diagram of the installation location of this utility model.

[0019] Figure 2 yes Figure 1 A magnified view of a portion of the image.

[0020] Figure 3 yes Figure 2 A magnified view of a portion of the image.

[0021] Figure 4 This is a structural diagram of two adjacent columns.

[0022] Figure 5 yes Figure 4 A magnified view of a portion of the image.

[0023] Figure 6 yes Figure 5 Another perspective diagram.

[0024] Attached diagram labels: 1 - Foundation, 2 - Column, 3 - Horizontal corbel, 4 - Vertical corbel, 5 - Lower longitudinal beam, 6 - Upper longitudinal beam, 7 - Lower cantilever beam, 8 - Upper cantilever beam, 9 - Lower conductor rail, 10 - Upper conductor rail, 11 - Connecting steel plate, 20 - Horizontal connecting leg, 30 - Vertical connecting leg, 40 - Connecting hole, 50 - Small gantry crane, 60 - Large gantry crane. Detailed Implementation

[0025] See the examples. Figure 1-6 As shown, a double-layer G-type gantry crane sliding contact line support is a G-type frame located between the two gantry crane legs, comprising: Foundation 1 is spaced between the track foundations of the two gantry cranes; adjacent foundations can be spaced at equal intervals.

[0026] Column 2 is installed in a one-to-one correspondence with foundation 1, and its bottom is connected laterally eccentrically to foundation 1. The two sides of column 2 are the eccentric side and the back side, respectively. In this embodiment, a small gantry crane 50 is installed on the eccentric side, and a large gantry crane 60 is installed on the back side. The legs of the small gantry crane 50 are V-shaped.

[0027] A connecting steel plate 11 is embedded in the center of the top surface of foundation 1. The column 2 is a square steel pipe, and the bottom surface of the column 2 is fixedly connected to the top surface of the connecting steel plate 11.

[0028] The brackets, L-shaped and corresponding to the columns 2, include horizontal brackets 3 and vertical brackets 4. The horizontal brackets 3 are cantilevered and fixedly connected to the top back side of the columns 2, and the bottom of the vertical brackets 4 are fixedly connected to the top of the cantilever end of the horizontal brackets 3. The eccentric connection between the columns 2 and the connecting steel plate 11 is such that the overall center of gravity of the G-frame is on the same vertical line as the center of the foundation 1.

[0029] The longitudinal beams include a lower longitudinal beam 5 and an upper longitudinal beam 6. The lower longitudinal beam 5 is longitudinally fixedly connected between adjacent columns 2, and its top surface elevation is lower than the bottom surface elevation of the horizontal corbel 3. The upper longitudinal beam 6 is fixedly connected between the tops of adjacent vertical corbels 4. In this embodiment, both the corbel and the longitudinal beam are square steel pipes. The dimensions of the horizontal corbel 3 are the same as those of the column 2. The dimensions of the horizontal corbel 3 are larger than those of the vertical corbel 4. The dimensions of the vertical corbel 4 are the same as those of the longitudinal beam.

[0030] In this embodiment, the dimensions of the foundation 1 are 500mm×500mm×300mm, the connecting steel plate 11 is a 300mm×300mm×10mm steel plate, the column 2 is a 150mm×150mm×8mm square steel pipe with a length of 3500mm, the longitudinal beam is a 100mm×100mm×8mm square steel pipe, and the brackets are: horizontal bracket 3 is a 150mm×150mm×8mm square steel pipe, and vertical bracket 4 is a 100mm×100mm×8mm square steel pipe.

[0031] The cantilever beams, parallel to the horizontal corbel 3, include a row of lower cantilever beams 7 and a row of upper cantilever beams 8. The lower cantilever beams 7 are cantilevered at intervals to the top of the lower longitudinal beams 5, and the top surface elevation of the lower cantilever beams 7 is lower than the bottom surface elevation of the horizontal corbel 3, with the cantilever ends facing the back side. The upper cantilever beams 8 are cantilevered at intervals to the top of the upper longitudinal beams 6, with the cantilever ends facing the eccentric side. The lower cantilever beams 7 and upper cantilever beams 8 are arranged in a one-to-one correspondence, and the angle steel openings of the lower cantilever beams 7 and upper cantilever beams 8 face opposite directions.

[0032] In this embodiment, the cantilever beam is an angle steel, specifically a 40mm×40mm×5mm angle steel with a length of 500mm. It includes a horizontal connecting leg 20 and a vertical connecting leg 30. The connecting end of the horizontal connecting leg 20 is fixedly connected to the top surface of the corresponding longitudinal beam. The cantilevered portion of the horizontal connecting leg 20 is spaced apart by connecting holes 40 of the connector.

[0033] The conductor rail is fixedly connected to the corresponding cantilever beam via connectors. The conductor rail includes a lower conductor rail 9 and an upper conductor rail 10. The lower conductor rail 9 is fixedly connected to the lower cantilever beam 7, corresponding to the gantry crane on the back side, and the upper conductor rail 10 is fixedly connected to the upper cantilever beam 8, corresponding to the gantry crane on the eccentric side.

[0034] The construction process of this utility model is as follows: Step 1: Based on the position parameters of the small gantry crane 50 and the large gantry crane 60, design the position and spacing of foundation 1; Step 2: Foundation 1 is a concrete foundation, which is poured at equal intervals between the two gantry crane track foundations. Before the concrete initially sets, the connecting steel plate 11 is placed and embedded on the surface of foundation 1, with the connecting steel plate 11 located at the center of foundation 1. Step 3: Calculate the dimensions and center of gravity of each component to ensure that after the G-frame is installed eccentrically, the overall center of gravity and the center of foundation 1 are on the same vertical line. Step 4: Weld the column and bracket together on the ground; Step 5: Weld the column 2 to the connecting steel plate 11 eccentrically according to the preset position. The small gantry crane 50 is located on the eccentric side, so the opening side of the G-type frame faces the small gantry crane 50. Step 6: Weld the longitudinal beams at the preset positions between two adjacent columns 2 to connect the entire frame; Step 7: Weld each cantilever beam at the preset position of each longitudinal beam. The spacing between cantilever beams in the same row should be 2m. The cantilever end of the lower cantilever beam 7 faces the large gantry crane 60, and the cantilever end of the upper cantilever beam 8 faces the small gantry crane 50. Step eight: Each sliding contact line is fixed to the corresponding cantilever beam using bolts passing through the connection holes 40, maintaining a certain safe distance between the lines. In this embodiment, each cantilever beam has five connection holes, corresponding to the positions of the five sliding contact lines. The two layers of sliding contact lines enable simultaneous power supply to both large and small gantry cranes.

Claims

1. A double-layer G-type gantry crane sliding contact line support, comprising a G-type frame located between the two gantry crane legs, characterized in that, include: The foundation (1) is spaced between the track foundations of the two gantry cranes; The column (2) is set one-to-one with the foundation (1), and its bottom is connected to the foundation (1) laterally eccentrically. The two sides of the column (2) are the eccentric side and the back side, respectively. The brackets are L-shaped and are set one-to-one with the columns (2), including horizontal brackets (3) and vertical brackets (4). The horizontal brackets (3) are cantilevered and fixedly connected to the top back side of the column (2), and the bottom of the vertical brackets (4) is fixedly connected to the top of the cantilever end of the horizontal brackets (3). The longitudinal beams include a lower longitudinal beam (5) and an upper longitudinal beam (6). The lower longitudinal beam (5) is longitudinally fixed between adjacent columns (2), and its top surface elevation is lower than the bottom surface elevation of the horizontal corbel (3). The upper longitudinal beam (6) is fixedly connected between the tops of adjacent vertical corbels (4). The cantilever beam, parallel to the horizontal corbel (3), includes a row of lower cantilever beams (7) and a row of upper cantilever beams (8). The lower cantilever beams (7) are cantilevered at intervals to the top of the lower longitudinal beams (5), with the cantilever ends facing the back side. The upper cantilever beams (8) are cantilevered at intervals to the top of the upper longitudinal beams (6), with the cantilever ends facing the eccentric side. The sliding conductor rail is fixedly connected to the corresponding cantilever beam via connectors.

2. The double-layer G-type gantry crane sliding contact line bracket according to claim 1, characterized in that: A connecting steel plate (11) is embedded in the center of the top surface of the foundation (1). The column (2) is a square steel pipe, and the bottom surface of the column (2) is fixedly connected to the top surface of the connecting steel plate (11).

3. The double-layer G-type gantry crane sliding contact line bracket according to claim 2, characterized in that: The degree of eccentric connection between the column (2) and the connecting steel plate (11) is to ensure that the overall center of gravity of the G-type frame and the center of the foundation (1) are on the same vertical line.

4. The double-layer G-type gantry crane sliding contact line bracket according to claim 2, characterized in that: Both the corbel and the longitudinal beam are square steel pipes. The dimensions of the horizontal corbel (3) are the same as those of the column (2). The dimensions of the horizontal corbel (3) are larger than those of the vertical corbel (4). The dimensions of the vertical corbel (4) are the same as those of the longitudinal beam.

5. The double-layer G-type gantry crane sliding contact line bracket according to claim 1, characterized in that: The top surface elevation of the lower cantilever beam (7) is lower than the bottom surface elevation of the horizontal corbel (3).

6. The double-layer G-type gantry crane sliding contact line bracket according to claim 5, characterized in that: The cantilever beam is an angle steel, including a horizontal connecting leg (20) and a vertical connecting leg (30). The connecting end of the horizontal connecting leg (20) is fixedly connected to the top surface of the corresponding longitudinal beam. The cantilevered part of the horizontal connecting leg (20) is spaced apart with connecting holes (40) of the connector.

7. The double-layer G-type gantry crane sliding contact line bracket according to claim 6, characterized in that: The lower cantilever beam (7) and the upper cantilever beam (8) are arranged in a one-to-one correspondence, and the angle steel openings of the lower cantilever beam (7) and the upper cantilever beam (8) face opposite directions.

8. The double-layer G-type gantry crane sliding contact line bracket according to claim 7, characterized in that: The sliding contact line includes a lower sliding contact line (9) and an upper sliding contact line (10). The lower sliding contact line (9) is fixedly connected to the lower cantilever beam (7) and corresponds to the gantry crane on the back side. The upper sliding contact line (10) is fixedly connected to the upper cantilever beam (8) and corresponds to the gantry crane on the eccentric side.

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