CN222200542U - A fast-assembling platform for hydraulic turbine runner overhauls - Google Patents

Abstract

A fast-assembling platform for overhauling a rotating wheel of a water turbine comprises a plurality of groups of assembling platforms, wherein the assembling platforms are arranged to be step fan annular platforms, each step fan annular platform comprises a step frame, a working table top is installed at the top of each step of the step frame, casters are arranged at four corners of the bottom of each step frame, connecting mechanisms are installed on the side faces of each step frame and used for connecting the assembling platforms of each group, safety fences are arranged on the peripheries of the assembling platforms of the plurality of groups in a surrounding mode, each step frame comprises a plurality of groups of upright posts, each upright post is sleeved with a plurality of universal connecting joints, a cross rod and side rods are fixedly connected through the universal connecting joints, the novel arranged step fan annular platform is convenient for people to go up and down and place tools, the step fan annular platform is connected and assembled by the universal connecting joints, is convenient to assemble and disassemble, the casters are stable and high in safety, the connecting mechanisms are convenient to set, and the connecting mechanisms are convenient to assemble and expand between the assembling platforms so as to meet the requirements of different working spaces and environments.

Description

A fast-assembling platform for hydraulic turbine runner overhauls

Technical Field

The utility model relates to the technical field of water turbine overhaul, in particular to a fast-assembling platform for water turbine runner overhaul.

Background

In hydropower station maintenance, the rotary inspection treatment is a conventional project of unit maintenance and is also an important project. In general, the method for overhauling the rotating wheel is to build a tail water platform in the rotating wheel chamber, build a temporary scaffold above the tail water platform, and work staff work on the scaffold. The temporary scaffold is very low in construction efficiency, a large number of steel pipes need to be transported to the hole of the runner chamber from elsewhere, then the fasteners are used for erecting one by one, and a large number of bamboo springboards are paved at the top, so that time and labor are wasted. The temporary scaffold cannot move, and the whole runner chamber needs to be fully filled during construction, so that the bearing capacity of the tail water platform is also a big test. The bottom and the top of the water outlet edge of the runner blade are key inspection positions, but because the height of the blade is higher, the single-layer platform cannot meet the requirement of comprehensive inspection, and the difficulty and the workload for constructing the multi-layer platform are greatly increased. After the runner is overhauled, the platform needs to be detached, and the disassembly and transportation work is a great difficulty.

This patent is to the not enough among the prior art, designs a fast-assembling platform for hydraulic turbine runner overhauls, when realizing promoting the platform and builds efficiency, improves security and reuse rate, and convenient removal.

Disclosure of Invention

The utility model aims to solve the technical problems of low construction efficiency, time and labor waste, poor safety, poor adaptation and incapability of moving and repeated use due to the fact that a temporary scaffold is used as an overhaul platform in the prior art.

In order to solve the technical problems, the technical scheme includes that the fast-assembling platform for overhauling the rotating wheel of the water turbine comprises a plurality of groups of assembling platforms, each group of assembling platforms is a stepped fan annular platform, each stepped fan annular platform comprises a stepped frame, a working table surface is arranged at the top of each layer of step of the stepped frame, casters are arranged at four corners of the bottom of the stepped frame, connecting mechanisms are arranged on the side faces of the stepped frame and used for connecting the assembling platforms of each group, and safety fences are arranged on the peripheries of the assembling platforms of the groups.

In the preferred scheme, ladder frame includes a plurality of groups stand, and a set of four stands that contain is equipped with a plurality of universal joint on the stand, is connected fixedly with horizontal pole and side lever through universal joint, installs fixedly on a set of stand a plurality of layers horizontal pole and side lever.

In the preferred scheme, the universal joint is set to four-petal type, and the center is provided with the main hole, and the stand is adorned to main hole endotheca, is provided with the connecting hole on the petal, connects fixed horizontal pole and side lever through the connecting hole.

In the preferred scheme, the horizontal pole includes the mobile jib, and the connecting plate is installed at mobile jib both ends, is provided with the mounting hole on the connecting plate, and the connecting plate at both ends all sets up in groups, and a set of connecting plate presss from both sides the petal of dress universal joint, adopts the bolt to connect stand and horizontal pole to be fixed together through mounting hole and connecting hole.

In the preferred scheme, the structure of the side rod is the same as that of the cross rod, and the installation mode of the side rod and the upright post is the same as that of the cross rod.

In the preferred scheme, table surface is installed at each layer ladder top of ladder frame, and table surface four corners is provided with the breach, and the breach clamps on a set of four stands, and the universal joint of installing is shelved on the stand to the bottom surface, and ladder frame side still is fixed with a plurality of cardboards, and the table surface clamps between the cardboards and further can fix.

In the preferred scheme, four column bottoms in four corners of the bottom of the ladder frame are provided with casters, and the casters are universal wheels and are provided with a brake device.

In the preferred scheme, install coupling mechanism on the stand of ladder frame side, coupling mechanism is cross universal the knot, including a set of fastener, divide the fastener to include lower fastener and last fastener, lower fastener tip and swing bolt connection, the big end is connected with last fastener that is provided with opening and thrust surface, grinds the riveting hookup between the a set of fastener to rotate with arbitrary angle.

In the preferred scheme, a group of fasteners of the cross universal buckle of the connecting mechanism are buckled on the upright posts on the side surfaces of the ladder frames of one group of assembling platforms of a plurality of groups of assembling platforms, the other fastener is arranged on the upright posts on the side surfaces of the ladder frames of the other group of assembling platforms adjacent to the assembling platform of the group of assembling platforms, a plurality of cross universal buckles are arranged between the groups of assembling platforms of the plurality of groups of assembling platforms, and the assembling platforms of the plurality of groups of assembling platforms are connected in series to form an integral fast-assembling platform.

In the preferred scheme, the security fence is installed to the side of a plurality of groups of platform outside work platform, and the security fence includes a plurality of pole setting, and the pole setting top package has the handrail, and pole setting cartridge is fixed in the stand internal fixation of ladder frame.

In the preferred scheme, the fast-assembling platform is formed by connecting a plurality of same assembly platforms, every two of the fast-assembling platform are connected through a connecting mechanism cross universal buckle, the angle of the step fan annular platform is 30-40 degrees, and the expansion or the reduction of the assembly platform to the required size can be increased or reduced according to maintenance requirements.

The quick-assembly platform for overhauling the rotating wheel of the water turbine has the following beneficial effects:

1. The utility model solves the problems that the temporary scaffold is adopted as an overhaul platform in the prior art, has low construction efficiency, is time-consuming and labor-consuming, has poor safety and adaptability and cannot be moved and reused, has the characteristics of simple construction, convenient disassembly and transportation and the like, and greatly saves manpower and material resources;

2. according to the utility model, through the modularized design, the rapid construction and dismantling of the fast-assembling platform are realized, and the early preparation time of overhaul is greatly shortened;

3. the design of a plurality of layers of working tables meets the maintenance requirements of different areas of the rotating wheel;

4. The universal connection joints are arranged, so that the step frame can be quickly installed and built, the angle can be conveniently adjusted, the method is suitable for installing step frames with various angles, the interchangeability is good, and the applicability is strong;

5. The cross universal buckle of the connecting mechanism is arranged, so that the quick connection and disconnection between the assembly platform groups are realized, and the construction and disassembly efficiency of the quick assembly platform is further improved;

6. The caster wheels are arranged, so that the assembly platform and the quick-assembly platform can move, the assembly platform and the quick-assembly platform can move in the process of construction and maintenance, the working efficiency is improved, and meanwhile, the platform is fixed due to the arrangement of the foot brake, so that the safety of the platform is improved;

7. The step fan ring structure is convenient to overhaul all areas of the turbine runner, and is beneficial to expanding and reducing the assembly platform according to the requirement of overhaul range and space so as to adapt to overhaul requirements;

8. the safety fence protects the operation safety of operators and improves the safety and reliability of the quick-mounting platform.

Drawings

The utility model is further described below with reference to the accompanying drawings and examples of implementation:

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic structural view of a single-group assembly platform according to the present utility model;

FIG. 3 is a schematic view of a universal joint according to the present utility model;

FIG. 4 is a schematic view of the structure of the cross bar of the present utility model;

FIG. 5 is a schematic view of the structure of the connecting mechanism of the present utility model;

In the figure, a ladder frame 1, a workbench surface 2, casters 3, a connecting mechanism 4, a safety fence 5, upright posts 11, universal connecting joints 12, cross bars 13, side bars 14, clamping plates 15, upright posts 51, armrests 52, main bars 131 and connecting plates 132 are arranged on the ladder frame.

Detailed Description

The technical scheme in the utility model is further described below with reference to the accompanying drawings and examples:

Example 1:

As shown in fig. 1-5, a fast-assembling platform for water turbine runner overhauls, including a plurality of groups of assembled platform, every group assembled platform sets up to step fan annular platform, and step fan annular platform includes step frame 1, and table surface 2 is installed at every layer of ladder top of step frame 1, and step frame 1 bottom four corners is provided with truckle 3, and step frame 1's side-mounting has coupling mechanism 4 for every group assembled platform's connection, and the periphery of a plurality of groups assembled platform encloses and is equipped with security fence 5.

In this embodiment, the step frame 1 includes a plurality of groups of upright posts 11, a group includes four upright posts 11, a plurality of universal joints 12 are sleeved on the upright posts 11, a cross bar 13 and a side bar 14 are fixedly connected through the universal joints 12, and a plurality of layers of cross bars 13 and side bars 14 are fixedly installed on the group of upright posts 11.

Further, the universal joint 12 is provided with four petals, a main hole is arranged in the center of the universal joint, the upright post 11 is sleeved in the main hole, connecting holes are formed in the petals, and the cross bars 13 and the side bars 14 are connected and fixed through the connecting holes.

Further, the cross bar 13 includes a main bar 131, connecting plates 132 are installed at two ends of the main bar 131, mounting holes are formed in the connecting plates 132, the connecting plates 132 at two ends are all arranged in groups, a group of connecting plates 132 clamp petals of the universal joint 12, and the upright post 11 and the cross bar 13 are connected and fixed together through the mounting holes and the connecting holes by bolts.

Further, the side bars 14 have the same structure as the cross bars 13, and the upright posts 11 are installed in the same manner as the cross bars 13.

Furthermore, the top of each layer of stairs of the ladder frame 1 is provided with a workbench surface 2, four corners of the workbench surface 2 are provided with notches, the notches are clamped on a group of four upright posts 11, the bottom surface is placed on universal connection joints 12 arranged on the upright posts 11, a plurality of clamping plates 15 are further fixed on the side surface of the ladder frame 1, and the workbench surface 2 is clamped between the clamping plates 15 to be further fixed.

Furthermore, casters 3 are installed at the bottoms of four upright posts 11 at four corners of the bottom of the ladder frame 1, and the casters 3 are universal wheels and are provided with a brake device.

Further, the upright post 11 on the side surface of the step frame 1 is provided with a connecting mechanism 4, the connecting mechanism 4 is a cross universal buckle and comprises a group of buckle parts, each buckle part comprises a lower buckle part and an upper buckle part, the small end of the lower buckle part is connected with a movable joint bolt, the large end of the lower buckle part is connected with the upper buckle part provided with a notch and a thrust surface, and the group of buckle parts are connected by grinding and riveting and rotate at any angle.

Further, the connecting mechanism 4 is a group of fasteners of cross universal buckles, one fastener is arranged on the upright post 11 on the side face of the ladder frame 1 of one group of assembling platforms, the other fastener is arranged on the upright post 11 on the side face of the ladder frame 1 of the other group of assembling platforms adjacent to the assembling platform, a plurality of cross universal buckles are arranged between the assembling platform groups, and the assembling platforms are connected in series to form an integral fast-assembling platform.

Further, the safety fence 5 is installed on the side face of the working platform outside the plurality of groups of assembling platforms, the safety fence 5 comprises a plurality of vertical rods 51, handrails 52 are wrapped on the tops of the vertical rods 51, and the vertical rods 51 are fixed in the upright posts 11 of the ladder frame 1 in an inserting mode.

Further, the fast-assembling platform is formed by connecting a plurality of same assembling platforms, every two of the fast-assembling platforms are connected through 4 cross universal buckles of the connecting mechanism, the angle of the step fan annular platform is 30-40 degrees, and the assembling platforms can be increased or decreased to be expanded or reduced to the required size according to maintenance requirements.

When the hydraulic turbine runner overhauls, firstly, a tail water platform is built on a tail water taper pipe, then, a runner overhauling platform is built above the tail water platform, the runner overhauling platform is composed of a plurality of groups of assembling platforms, firstly, parts of each group of assembling platforms are conveyed to the tail water platform, a plurality of groups of assembling platforms are built respectively, casters 3 are installed, a working table surface 2 is paved, after each group of assembling platforms is built, the assembling platforms are connected into a whole through a connecting mechanism 4 cross universal buckle, safety rails 5 are inserted into three surfaces of the platform, operators check the runner on the working platform, and lower operators cooperate with the moving platform to finish checking work of the whole runner.

Example 2:

In another preferred embodiment, on the basis of the above embodiment 1, as shown in fig. 2, when the overhaul range and the overhaul workload are small and the operation space is small, the cross universal buckle of the connecting mechanism 4 can be detached, so that the number of groups of the assembling platforms is reduced, and the requirement of overhaul of the turbine runner is met.

Example 3:

In another preferred embodiment, on the basis of the above embodiment 1, when the overhaul range is large and the overhaul workload is large, the assembly platform can be continuously assembled, and the assembly platform is connected to the originally built platform through the cross universal buckle of the connecting mechanism 4, so as to meet the requirement of overhaul of the turbine runner.

Example 4:

In another preferred embodiment, when the load bearing requirement is high, the caster 3 is additionally arranged below the upright post 11, so that the load bearing of the quick-mounting platform is increased, and meanwhile, the stability of the quick-mounting platform is increased, and the safety and the reliability of the quick-mounting platform are further enhanced.

In the preferred scheme, the ladder frame 1 comprises a plurality of groups of upright posts 11, one group comprises four upright posts 11, a plurality of universal connection joints 12 are sleeved on the upright posts 11, a cross rod 13 and a side rod 14 are fixedly connected through the universal connection joints 12, a plurality of layers of cross rods 13 and side rods 14 are fixedly installed on one group of upright posts 11, and the arrangement ensures the stability of the structure of the ladder frame 1 while realizing the structure of the ladder frame 1, is also beneficial to the rapid installation, construction, disassembly and transportation of the subsequent ladder frame 1, and improves the construction and disassembly efficiency of a fast-assembly platform.

In the preferred scheme, the universal connecting joint 12 is in a four-petal shape, a main hole is arranged in the center of the universal connecting joint, the upright post 11 is sleeved in the main hole, connecting holes are formed in petals, the cross rod 13 and the side rods 14 are connected and fixed through the connecting holes, and the arrangement is beneficial to rapid installation, construction, disassembly and transportation of the ladder frame 1 while the upright post 11 is connected with the cross rod 13 and the side rods 14, and is convenient for adjusting angles and directions, so that multi-angle and multi-directional connection is realized.

In a preferred scheme, the cross rod 13 comprises a main rod 131, connecting plates 132 are arranged at two ends of the main rod 131, mounting holes are formed in the connecting plates 132, the connecting plates 132 at two ends are all arranged in groups, a group of connecting plates 132 clamp petals of the universal joint 12, the upright post 11 and the cross rod 13 are connected and fixed together through the mounting holes and the connecting holes by bolts, and the upright post 11 and the cross rod 13 are connected by the arrangement, so that the connection is realized, and the assembly and the disassembly are convenient and quick.

In the preferred scheme, the side rods 14 have the same structure as the cross rods 13, the same installation mode as the upright posts 11 is also the same as the cross rods 13, and the arrangement ensures that the upright posts 11 are connected with the side rods 14 and are convenient to install and disassemble.

In the preferred scheme, the top of each layer of the ladder frame 1 is provided with a working table surface 2, four corners of the working table surface 2 are provided with notches, the notches are clamped on a group of four upright posts 11, the bottom surface is placed on universal connection joints 12 arranged on the upright posts 11, a plurality of clamping plates 15 are also fixed on the side surface of the ladder frame 1, and the working table surface 2 is clamped between the clamping plates 15 to be further fixed;

In the preferred scheme, the casters 3 are arranged at the bottoms of the four upright posts 11 at the four corners of the bottom of the ladder frame 1, the casters 3 are universal wheels and are provided with a brake device, and the arrangement ensures that the movement and the fixation of the ladder fan annular platform are realized, is convenient to move in the overhaul process, and is beneficial to quick installation, construction, disassembly and transportation.

In the preferred scheme, the upright post 11 on the side surface of the ladder frame 1 is provided with the connecting mechanism 4, the connecting mechanism 4 is a cross universal buckle and comprises a group of buckle parts, the buckle parts comprise a lower buckle part and an upper buckle part, the small end of the lower buckle part is connected with a movable joint bolt, the large end of the lower buckle part is connected with the upper buckle part provided with a notch and a thrust surface, and the group of buckle parts are connected by grinding and riveting and rotate at any angle.

In the preferred scheme, the connecting mechanism 4 is provided with a group of fasteners of cross universal buckles, one fastener is arranged on the upright post 11 on the side surface of the ladder frame 1 of one group of assembling platforms, the other fastener is arranged on the upright post 11 on the side surface of the ladder frame 1 of the other group of assembling platforms adjacent to the assembling platform, the cross universal buckles are arranged between the assembling platforms, the assembling platforms are connected in series to form an integral fast-assembling platform, and the arrangement is provided to realize the connection and the disconnection between the assembling platform groups, and simultaneously, the construction and the disconnection are convenient, and the working efficiency is improved.

In the preferred scheme, the safety fence 5 is arranged on the side face of the working platform outside the plurality of groups of assembling platforms, the safety fence 5 comprises a plurality of vertical rods 51, handrails 52 are wrapped on the tops of the vertical rods 51, the vertical rods 51 are fixedly inserted into the vertical columns 11 of the ladder frame 1, and the safety of operators is protected due to the arrangement, so that the safety and the reliability of the platform are further improved.

In the preferred scheme, the quick-assembly platform is formed by connecting a plurality of identical assembly platforms, every two of the quick-assembly platforms are connected through the cross universal buckle of the connecting mechanism 4, the angle of the stepped fan annular platform is 30-40 degrees, the expansion or the reduction of the assembly platforms to the required size can be increased or reduced according to maintenance requirements, and the arrangement is beneficial to the expansion and the reduction of the assembly platforms so as to be suitable for the requirements of different working spaces and environments, so that the application range of the quick-assembly platform is further improved.

In summary, the quick-mounting platform for the hydraulic turbine runner maintenance provided by the utility model has the characteristics of low construction efficiency, time and labor waste, poor safety, poor adaptability, incapability of moving and repeated use, simplicity in construction, convenience in disassembly and transportation and the like, and greatly saves manpower and material resources, the quick construction and disassembly of the quick-mounting platform are realized through a modularized design, the preparation time in the early maintenance stage is greatly shortened, the requirements of maintenance in different areas of the runner are met through the arrangement of a plurality of layers of working tables, the quick installation and construction of a ladder frame are realized through the arrangement of a plurality of universal joints, the angle is conveniently adjusted to be suitable for the installation of the ladder frame at various angles, the interchangeability is good, the applicability is strong, the quick connection and disassembly between the assembly platform set and the set are realized through the arrangement of cross universal buckles of the connecting mechanism, the construction platform set and the disassembly efficiency of the quick-mounting platform are further improved, the quick construction platform and the movement in the working process are realized through the arrangement of casters, the construction efficiency is improved, the setting of the foot brake is improved, the requirements of the quick-mounting platform are met, the safety and the safety window is reduced, the safety window is easily achieved through the installation and the safety window is reduced, the practical requirements of the safety window is met, the safety window is easily and the safety window is met, the safety window is designed and the safety is convenient and the safety is suitable for the safety is widely and convenient to be used for the maintenance and the maintenance. The method can be widely popularized in the field of water turbine runner overhaul, and can also be widely applied to other technical fields requiring the use of scaffolds.

Claims (10)

1. A fast-assembling platform for overhauling a rotating wheel of a water turbine is characterized by comprising a plurality of groups of assembling platforms, wherein each group of assembling platforms is a stepped fan annular platform, each stepped fan annular platform comprises a stepped frame (1), a working table top (2) is arranged at the top of each layer of steps of the stepped frame (1), casters (3) are arranged at four corners at the bottom of the stepped frame (1), a connecting mechanism (4) is arranged on the side face of the stepped frame (1) and used for connecting each group of assembling platforms, and a safety fence (5) is arranged on the periphery of each group of assembling platforms in a surrounding mode.

2. The quick-assembly platform for overhauling a rotating wheel of a water turbine, which is characterized in that the ladder frame (1) comprises a plurality of groups of upright posts (11), one group comprises four upright posts (11), a plurality of universal connecting joints (12) are sleeved on the upright posts (11), a cross rod (13) and side rods (14) are fixedly connected through the universal connecting joints (12), and a plurality of layers of cross rods (13) and side rods (14) are fixedly arranged on one group of upright posts (11).

3. A quick-mounting platform for overhauling a runner of a water turbine, as set forth in claim 2, wherein the universal joint (12) is of a four-petal type, a main hole is arranged in the center of the universal joint, an upright post (11) is sleeved in the main hole, connecting holes are formed in petals, and a fixing cross rod (13) and side rods (14) are connected through the connecting holes.

4. A fast-assembling platform for overhauling a rotating wheel of a water turbine according to claim 3, wherein the cross rod (13) comprises a main rod (131), connecting plates (132) are arranged at two ends of the main rod (131), mounting holes are formed in the connecting plates (132), the connecting plates (132) at two ends are all arranged in groups, petals of a universal connecting joint (12) are clamped by one group of connecting plates (132), and the upright post (11) and the cross rod (13) are connected and fixed together through the mounting holes and the connecting holes by bolts.

5. A quick-mounting platform for the maintenance of a turbine runner as set forth in claim 4, wherein the side bars (14) are identical in structure to the cross bars (13) and are mounted in the same manner as the posts (11) and the cross bars (13).

6. The fast-assembling platform for overhauling the rotating wheel of the water turbine, which is characterized in that the working table top (2) is arranged at the top of each layer of steps of the step frame (1), notches are arranged at four corners of the working table top (2), the notches are clamped on a group of four upright posts (11), the bottom surface of the working table top is placed on universal connection joints (12) arranged on the upright posts (11), a plurality of clamping plates (15) are further fixed on the side surface of the step frame (1), and the working table top (2) is clamped between the clamping plates (15) to be further fixed.

7. The fast-assembling platform for overhauling the runner of the water turbine, which is characterized in that casters (3) are arranged at the bottoms of four upright posts (11) at four corners of the bottom of the ladder frame (1), and the casters (3) are universal wheels and are provided with braking devices.

8. A fast-assembling platform for overhauling a rotating wheel of a water turbine is characterized in that a connecting mechanism (4) is arranged on an upright post (11) on the side face of a ladder frame (1), the connecting mechanism (4) is a cross universal buckle and comprises a group of component buckles, each component buckle comprises a lower buckle and an upper buckle, the small end of the lower buckle is connected with a movable joint bolt, the large end of the lower buckle is connected with the upper buckle provided with a notch and a thrust surface, and the component buckles are connected in a rolling riveting mode and rotate at any angle.

9. The quick-connect platform for turbine runner service of claim 8, wherein: the connecting mechanism is characterized in that a group of fasteners of the cross universal buckle of the connecting mechanism (4) are buckled on upright posts (11) on the side surfaces of a group of assembling platform ladder frames (1) of a plurality of groups of assembling platforms, the other fastener is arranged on the upright posts (11) on the side surfaces of another group of assembling platform ladder frames (1) adjacent to the group of assembling platforms, a plurality of cross universal buckles are arranged between the groups of assembling platforms, and the groups of assembling platforms are connected in series to form an integral fast-assembling platform.

10. The fast-assembling platform for overhauling the rotating wheel of the water turbine, which is characterized in that the side surfaces of the working platforms outside the assembling platforms are provided with safety fences (5), each safety fence (5) comprises a plurality of vertical rods (51), handrails (52) are wrapped on the tops of the vertical rods (51), and the vertical rods (51) are fixed in the vertical columns (11) of the ladder frame (1) in a plug-in mode.