Water conservancy and hydropower engineering steel gate leaf manufacturing general assembly platform and gate leaf general assembly manufacturing process thereof

Abstract

A water conservancy and hydropower engineering steel gate leaf manufacturing general assembly platform comprises bearing tables, size adjusting pieces and arc-shaped steel gate leaves used for general assembly manufacturing, the bearing tables are used for supporting the arc-shaped steel gate leaves, and the size adjusting pieces are connected with the bearing tables, limit the spatial positions of the bearing tables and adjust the distance between the bearing tables. During final assembly, the panel of the arc-shaped steel gate leaf is located on the upper portion, and the main beam is located on the lower portion and reversely buckled on the bearing table in an inverted mode. The number of the bearing tables is two, one main beam of the arc-shaped steel gate is hoisted on each bearing table, each bearing table comprises a vertical beam and a wedge block, and the wedge block is arranged on the vertical beam and connected with the vertical beam. According to the method, the general assembly manufacturing method of the original hydraulic and hydroelectric engineering arc-shaped steel gate leaf is changed, the original forward general assembly of the arc-shaped steel gate leaf is changed into the reverse general assembly of the arc-shaped steel gate leaf, the forming die manufacturing cost is reduced under the condition that the original manufacturing precision is not changed, and good economic benefits are brought to enterprises.

Description

Technical Field

[0001] This invention belongs to the field of water conservancy and hydropower engineering machinery and equipment manufacturing, and in particular to the manufacturing of large arc-shaped steel gates in the field of water conservancy and hydropower engineering. Background Technology

[0002] Steel gates in hydraulic engineering projects are an important component of hydraulic structures. Their function is to close the orifices of the hydraulic structure and, as needed, to fully or partially open these orifices to regulate upstream and downstream water levels, release flow, transport ships, and remove sediment, ice, and other floating debris. There are many types of steel gates, generally classified into flat steel gates and curved steel gates according to their structural type and construction characteristics. The hinge center of a curved steel gate usually coincides with the center of the water-retaining panel, meaning the total water pressure acting on this surface always passes through the hinge center. Therefore, its opening and closing force is relatively smaller than that of a flat steel gate of the same size. The gate's water-retaining surface is an arc, conforming to the free flow profile downstream of the gate during discharge. The straight sides of the gate piers do not interfere with the water flow, resulting in good hydraulic conditions. Therefore, they are widely used as working gates in various types of waterways.

[0003] The structure of an arc-shaped steel gate in a water conservancy and hydropower project mainly includes gate leaves, support arms, hinges, and embedded parts. The gate leaves are connected to the support arms, the support arms are connected to the hinges, the hinges are connected to the embedded parts, and the embedded parts are fixed in the concrete structure. The structure of the gate leaves mainly consists of two main beams, longitudinal beams and side beams connecting the main beams, horizontal secondary beams connecting the longitudinal beams and side beams, top and bottom beams, and an arc-shaped panel. The arc-shaped panel covers the frame composed of the main beams, longitudinal beams, side beams, horizontal secondary beams, and top and bottom beams. The manufacturing process of the curved steel gate leaf is as follows: First, a gate leaf manufacturing assembly platform (hereinafter referred to as the "form membrane") is made, which has the same curvature and size as the curved steel gate panel. The form membrane is an inverted arch shape with the opening facing upwards and the ends higher than the middle. The panel size of the form membrane is consistent with the panel size of the curved steel gate to be manufactured. The load-bearing structure of the form membrane is reinforced according to the weight of the curved steel gate to be manufactured. Then, the curved steel gate panel is laid on the form membrane, and then the main beam, horizontal secondary beam, top and bottom beam, side beam, longitudinal beam and other frame structures are hoisted, fixed and welded to complete the manufacturing. During the manufacturing process, the curved steel gate is in the positive state with the panel at the bottom and the main beam at the top. Because the manufacturing, installation, and acceptance requirements for curved steel gates in hydropower projects stipulate a 3-6mm gap between the longitudinal curvature of the gate leaf and a 3m template with a chord length, the fabrication precision of the formwork is crucial. Furthermore, the formwork must withstand the gate's own weight and the dynamic loads of personnel and equipment without deformation. Therefore, the formwork must be made of steel plates and structural steel, resulting in significant weight and cost. Generally, the manufacturing cost of the formwork for curved steel gates accounts for 10-20% of the cost of the gate leaf. The height of curved steel gates varies from project to project, leading to different radii (R) and thus different panel curvatures. Consequently, old formwork cannot be used for gates of different heights, requiring the fabrication of new formwork, which must be discarded. This lack of interchangeability in formwork results in high manufacturing costs and significant steel waste during the gate manufacturing process. Therefore, hydropower gate manufacturers urgently need better formwork fabrication solutions to reduce costs and increase efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a new assembly platform (formwork) for the manufacturing of curved steel gate leaves in water conservancy and hydropower projects, and related manufacturing processes, to solve the problems of high cost of assembly platforms for curved steel gate leaves and the lack of universality of assembly platforms for curved steel gate leaves of different heights, thereby reducing the manufacturing cost of curved steel gate leaves in water conservancy and hydropower projects and increasing the economic benefits of manufacturing enterprises.

[0005] The solution provided by this invention is: a manufacturing and assembly platform for steel gate leaves in water conservancy and hydropower projects, comprising: a load-bearing platform, a size adjustment component, and an arc-shaped steel gate leaf for assembly and manufacturing. The load-bearing platform supports the arc-shaped steel gate leaf. The size adjustment component is connected to the load-bearing platform, restricting the spatial position of the load-bearing platform and adjusting the distance between the load-bearing platforms. During assembly, the panel of the arc-shaped steel gate leaf is located on top, and the main beam is located on the bottom and inverted on the load-bearing platform. There are two sets of load-bearing platforms, and one main beam of the arc-shaped steel gate is hoisted on each set of load-bearing platforms. The load-bearing platform includes: a vertical beam and a wedge. The wedge is set on the vertical beam and connected to the vertical beam.

[0006] Preferably, the wedge includes a thick-edge beam, a thin-edge beam, and an inclined panel, and the main beam of the arc-shaped steel gate leaf is hoisted onto the inclined panel above the wedge.

[0007] The main structure of the arc-shaped steel gate leaf consists of a main beam, longitudinal beams, side beams, horizontal secondary beams, top beam, bottom beam, and panel. The assembly platform for the steel gate leaf of the water conservancy and hydropower project is constructed using the rear flange (with a corresponding inclination) of the main beam of the arc-shaped steel gate leaf as a reference plane for measuring flatness and inclination. The main stress points are controlled below the two main beam structures. The assembly and manufacturing process of the gate leaf is as follows: Step 1: According to the requirements of the arc-shaped steel gate drawings, lay out and locate the height of the support platform, the distance between the support platforms, the height of the wedge blocks, and the slope of the inclined panel at the top of the wedge blocks on the site; Step 2: Fix the wedges to the vertical beam, fix the vertical beam to the ground, and connect and reinforce the size adjustment piece to the load-bearing platform; Step 3: Hoist the main gate beam onto the wedge block of the assembly platform and fix it. Connect the rear flange of the main beam to the inclined panel of the wedge block. Hoist the longitudinal beam, side beam, horizontal secondary beam and top and bottom beam in sequence and fix them to form an integrated frame. Step 4: After the panels are rolled and assembled into a whole, cover the panels onto the frame described in Step 3 and fix them to the frame that is assembled with each longitudinal beam and side beam. Step 5: The manufacturing and assembly of the steel gate leaf for the water conservancy and hydropower project is completed.

[0008] Preferably, the wedge is a lifting wedge, wherein the thick side beam and the thin side beam of the wedge are hinged to the inclined panel, and the thick side beam is equipped with a lifting device. The lifting device raises the thick side beam to increase its height, and lowers the lifting device to decrease its height.

[0009] Preferably, the vertical beam is a lifting vertical beam, and the vertical beam is equipped with a lifting device. The lifting device raises the vertical beam to increase its height, and lowers the lifting device to decrease its height.

[0010] Preferably, the lifting device is a hydraulic lifting device.

[0011] Preferably, the lifting device is a jack.

[0012] Preferably, the size adjustment component includes a fixed rod and a turnbuckle, wherein the turnbuckle is connected to the fixed rod, and the fixed rod is connected to the load-bearing platform.

[0013] Preferably, each end of the size adjustment component is connected to a vertical beam.

[0014] The present invention describes a manufacturing and assembly platform and process for steel gate leaves used in water conservancy and hydropower projects. This method alters the original assembly method for curved steel gate leaves, changing the forward assembly (panel first, then main beam) to a reverse assembly (main beam first, then panel). This reduces the cost of the mold production process without compromising manufacturing precision. In the preferred embodiment, the vertical beam and wedge are raised using a lifting device, which can be applied to the assembly of curved steel gate leaves of different heights and curvatures. The wedge thick-edge beam lifting device adjusts the tilt angle of the inclined panel to actively adapt to the tilt of the rear flange of the main beam of gate leaves with different curvatures. The vertical beam lifting device adjusts the height of the vertical beam to actively adapt to the ground clearance of the main beam of gate leaves with different curvatures. Compared to the original manufacturing method, the gate leaf manufacturing assembly platform is reduced to two smaller sets of load-bearing platforms and size adjustment components, which greatly reduces the cost of the mold. Furthermore, the height-adjusting vertical beam and the tilt angle wedge can be used to manufacture gate leaves of different arc shapes of curved steel gates. In other words, the mold is universal. Gate manufacturers only need one set of molds to manufacture various curved steel gate leaves, reducing mold waste and greatly increasing the economic benefits of manufacturing enterprises. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ; Figure 2 This is a side view of the structure of the present invention. Figure 1 ; Figure 3 This is a schematic diagram of the structure of the present invention. Figure 2 ; Figure 4 This is a side view of the structure of the present invention. Figure 2 ; Figure 5 This is a schematic diagram of the structure of the present invention. Figure 3 ; Figure 6 This is a schematic diagram of the size adjustment component of the present invention; Figure 7 This is a schematic diagram of the structure of the wedge block with lifting device and the vertical beam with lifting device of the present invention; Figure 8 This is a schematic diagram of the wedge block structure of the present invention; Figure 9 This is a schematic diagram of the main beam structure of the present invention.

[0016] Reference numerals: 1: Supporting platform, 2: Size adjustment component, 3: Curved steel gate leaf, 4: Vertical beam, 5: Wedge block, 6: Thick edge beam, 7: Thin edge beam, 8: Inclined panel, 9: Lifter, 10: Main beam, 11: Longitudinal beam, 12: Side beam, 13: Horizontal secondary beam, 14: Bottom beam, 15: Top beam, 16: Panel, 17: Rear flange of main beam, 18: Fixing rod, 19: Turnbuckle. Detailed Implementation

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

[0018] Example 1: A manufacturing and assembly platform for steel gate leaf of a water conservancy and hydropower project, including: a load-bearing platform (1), a size adjustment component (2), and an arc-shaped steel gate leaf (3) for assembly manufacturing. The load-bearing platform (1) is used to support the arc-shaped steel gate leaf (3). The size adjustment component (2) is connected to the load-bearing platform (1) to limit the spatial position of the load-bearing platform (1) and adjust the distance between the load-bearing platforms (1). During assembly, the panel (16) of the arc-shaped steel gate leaf (3) is located on top, and the main beam (10) is located on the bottom and inverted on the load-bearing platform (1). The load-bearing platform (1) is divided into two groups. One main beam (10) of the arc-shaped steel gate is hoisted on each load-bearing platform (1). The load-bearing platform (1) includes: a vertical beam (4) and a wedge (5). The wedge (5) is set on the vertical beam (4) and connected to the vertical beam (4).

[0019] The wedge (5) includes: a thick-side beam (6), a thin-side beam (7), and an inclined panel (8). The main beam (10) of the arc-shaped steel gate leaf is hoisted onto the inclined panel (8) above the wedge (5).

[0020] The main structure of the arc-shaped steel gate leaf (3) consists of a main beam (10), longitudinal beams (11), side beams (12), horizontal secondary beams (13), top beam (15), bottom beam (14), and panel (16). The assembly platform for the steel gate leaf of the water conservancy and hydropower project is constructed by measuring the flatness and inclination of the rear flange (17) of the main beam (10) of the arc-shaped steel gate leaf (3) as the reference plane. The main stress points are controlled below the two main beam structures. The assembly and manufacturing process of the gate leaf is as follows: Step 1: According to the requirements of the arc-shaped steel gate (3) drawing, lay out and position the height of the support platform (1), the distance between the support platforms (1), the height of the wedge (5), and the slope of the inclined panel (8) on the top of the wedge on the site; Step 2: Fix the wedge (5) to the vertical beam (4), fix the vertical beam (4) to the ground, and connect and reinforce the size adjustment piece (2) to the load-bearing platform (1); Step 3: Hoist the gate main beam (10) onto the wedge (2) of the assembly platform and fix it. Connect the rear flange (17) of the main beam to the inclined plate (8) of the wedge. Hoist the longitudinal beam (11), side beam (12), horizontal secondary beam (13) and top and bottom beams in sequence and fix them. Step 4: After the panel (16) is rolled and assembled into a whole, the panel (16) is placed on the frame described in step 3 and fixed to the frame that is assembled with each longitudinal beam and side beam. Step 5: The manufacturing and assembly of the steel gate leaf for the water conservancy and hydropower project is completed.

[0021] The wedge (5) is a lifting wedge. The thick-side beam (6) and thin-side beam (7) of the wedge (5) are hinged to the inclined plate (8). The thick-side beam (6) is equipped with a lifter (9). The lifter (9) raises the thick-side beam (6) to increase its height and lowers the thick-side beam (6) to decrease its height. The vertical beam (4) is a lifting vertical beam. The vertical beam is equipped with a lifter (9). The lifter (9) raises the vertical beam (4) to increase its height and lowers the vertical beam (4) to decrease its height. The vertical beam lifter and the wedge thick-side beam lifter are hydraulic lifters.

[0022] Example 2: A manufacturing and assembly platform for steel gate leaf of a water conservancy and hydropower project, including: a load-bearing platform (1), a size adjustment component (2), and an arc-shaped steel gate leaf (3) for assembly manufacturing. The load-bearing platform (1) is used to support the arc-shaped steel gate leaf (3). The size adjustment component (2) is connected to the load-bearing platform (1) to limit the spatial position of the load-bearing platform (1) and adjust the distance between the load-bearing platforms (1). During assembly, the panel (16) of the arc-shaped steel gate leaf (3) is located on top, and the main beam (10) is located on the bottom and inverted on the load-bearing platform (1). The load-bearing platform (1) is divided into two groups. One main beam (10) of the arc-shaped steel gate is hoisted on each load-bearing platform (1). The load-bearing platform (1) includes: a vertical beam (4) and a wedge (5). The wedge (5) is set on the vertical beam (4) and connected to the vertical beam (4).

[0023] The wedge (5) includes: a thick-side beam (6), a thin-side beam (7), and an inclined panel (8). The main beam (10) of the arc-shaped steel gate leaf is hoisted onto the inclined panel (8) above the wedge (5).

[0024] The main structure of the arc-shaped steel gate leaf (3) consists of a main beam (10), longitudinal beams (11), side beams (12), horizontal secondary beams (13), top beam (15), bottom beam (14), and panel (16). The assembly platform for the steel gate leaf of the water conservancy and hydropower project is constructed by measuring the flatness and inclination of the rear flange (17) of the main beam (10) of the arc-shaped steel gate leaf (3) as the reference plane. The main stress points are controlled below the two main beam structures. The assembly and manufacturing process of the gate leaf is as follows: Step 1: According to the requirements of the arc-shaped steel gate (3) drawing, lay out and position the height of the support platform (1), the distance between the support platforms (1), the height of the wedge (5), and the slope of the inclined panel (8) on the top of the wedge on the site; Step 2: Fix the wedge (5) to the vertical beam (4), fix the vertical beam (4) to the ground, and connect and reinforce the size adjustment piece (2) to the load-bearing platform (1); Step 3: Hoist the gate main beam (10) onto the wedge (2) of the assembly platform and fix it. Connect the rear flange (17) of the main beam to the inclined plate (8) of the wedge. Hoist the longitudinal beam (11), side beam (12), horizontal secondary beam (13) and top and bottom beams in sequence and fix them. Step 4: After the panel (16) is rolled and assembled into a whole, the panel (16) is placed on the frame described in step 3 and fixed to the frame that is assembled with each longitudinal beam and side beam. Step 5: The manufacturing and assembly of the steel gate leaf for the water conservancy and hydropower project is completed.

[0025] The size adjustment component (2) includes a fixed rod (18) and a basket screw (19). The basket screw (19) is connected to the fixed rod (18), and the fixed rod (18) is connected to the support platform (1). Each end of the size adjustment component (2) is connected to a vertical beam (4).

Claims

1. A steel gate leaf manufacturing and assembling platform for hydraulic and hydroelectric engineering, comprising: The application discloses a bearing platform, a size adjusting piece and an arc-shaped steel gate leaf for general assembly manufacturing, and has the characteristics that the bearing platform is used for supporting the arc-shaped steel gate leaf, the size adjusting piece is connected with the bearing platform, the spatial position of the bearing platform is limited, the distance between the bearing platforms is adjusted, the face plate of the arc-shaped steel gate leaf is located above and the main beam is located below and reversely inverted on the bearing platform during general assembly; the bearing platform is composed of two groups of vertical beams and wedge blocks, the wedge blocks are arranged on the vertical beams and connected with the vertical beams.

2. The manufacturing and assembling platform for the steel gate leaf of the hydraulic and hydropower engineering according to claim 1, characterized in that: The wedge block comprises a thick edge beam, a thin edge beam and an inclined face plate, and the main beam of the arc-shaped steel gate leaf is hoisted to the inclined face plate above the wedge block.

3. The manufacturing and assembling platform for the steel gate leaf of the hydraulic and hydropower engineering steel gate according to claim 2, characterized in that: The main structure of the arc-shaped steel gate leaf comprises a main beam, a longitudinal beam, an edge beam, a horizontal secondary beam, a top beam, a bottom beam and a face plate, the general assembly platform for the water conservancy and hydropower engineering steel gate leaf manufacturing is measured in terms of planeness and inclination based on the rear flange (with corresponding inclination) of the main beam of the arc-shaped steel gate leaf as a reference surface, the gate leaf manufacturing general assembly platform is erected, the main stress points are controlled below the two main beam structures, and the gate leaf general assembly manufacturing process is as follows: Step 1: the height of the bearing platform, the distance between the bearing platforms, the height of the wedge block and the inclination of the inclined face plate on the top of the wedge block are positioned according to the requirements of the drawings of the arc-shaped steel gate on the site; Step 2: the wedge block is fixed on the vertical beam, the vertical beam is fixed on the ground of the site, and the size adjusting piece is connected with the bearing platform and reinforced; Step 3: the main beam of the gate is hoisted to the wedge block of the general assembly platform and fixed, the rear flange of the main beam is connected with the inclined face plate of the wedge block, the longitudinal beam, the edge beam, the horizontal secondary beam, the top beam and the bottom beam are sequentially hoisted and fixed to be integrated into a frame; Step 4: after the face plate is rolled and assembled into a whole, the face plate is covered to the frame in step 3 and fixed to the frame integrated with the longitudinal beam and the edge beam; Step 5: the water conservancy and hydropower engineering steel gate leaf manufacturing general assembly is completed.

4. The manufacturing and assembling platform for the steel gate leaf of the hydraulic and hydropower engineering steel gate according to claim 2, characterized in that: The wedge block is a lifting wedge block, the thick edge beam, the thin edge beam and the inclined face plate of the wedge block are hinged, the thick edge beam is provided with a lifter, the height of the thick edge beam is raised by the lifter, and the height of the thick edge beam is lowered by the lifter.

5. The manufacturing and assembling platform for the steel gate leaf of the hydraulic and hydropower engineering steel gate according to claim 1, characterized in that: The vertical beam is a lifting vertical beam, the vertical beam is provided with a lifter, the height of the vertical beam is raised by the lifter, and the height of the vertical beam is lowered by the lifter.

6. The manufacturing and assembling platform for the steel gate leaf of the hydraulic and hydropower engineering steel gate according to claim 1, characterized in that: The size adjusting piece comprises a fixed rod and a flower basket screw rod, the flower basket screw rod is connected with the fixed rod, and the fixed rod is connected with the bearing platform.

7. The manufacturing and assembling platform for the steel gate leaf of the hydraulic and hydropower engineering steel gate according to claim 6, characterized in that: The size adjusting piece is connected with one vertical beam at each end.

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