CN220059432U - Turning type up-down generator turning sub-ladder - Google Patents
Turning type up-down generator turning sub-ladder Download PDFInfo
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- CN220059432U CN220059432U CN202320421186.2U CN202320421186U CN220059432U CN 220059432 U CN220059432 U CN 220059432U CN 202320421186 U CN202320421186 U CN 202320421186U CN 220059432 U CN220059432 U CN 220059432U
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- inclined ladder
- ladder
- hinged
- sides
- railing
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- 230000007306 turnover Effects 0.000 claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000009993 protective function Effects 0.000 description 1
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Abstract
The utility model provides a turn over formula generator turn over sub-ladder about, includes first inclined ladder and second inclined ladder, first inclined ladder fixed mounting is on building or structure, and the second inclined ladder passes through the articulated lower extreme of installing at first inclined ladder of pin joint, and movable mounting has first railing on the first inclined ladder, and fixed mounting has the second railing on the second inclined ladder, the second inclined ladder upwards overturns and can be perpendicular to ground around the pin joint. The second inclined ladder of the step ladder can rotate and be perpendicular to the ground, and can be folded and retracted to be beyond the outer circle of the generator rotor when the generator rotor is hung in and lifted out, so that the hanging in and the hanging out of the generator rotor are not influenced, the working efficiency is improved, and the personal safety is guaranteed.
Description
Technical Field
The utility model relates to the technical field of overhauling of large-sized hydraulic generator rotors, in particular to a turnover type up-down generator rotating sub-ladder.
Background
The upper rotor step ladder and the lower rotor step ladder are important tools for overhauling the generator, are used when the generator rotor is hung in or out, and are convenient for workers to enter and exit from the upper part of the rotor. At present, the lower end of the step ladder is positioned above the rotor, the motor rotor must be removed in advance when the motor rotor is hung in and lifted, workers need to climb over the motor stator base to work above the rotor during the period, the risk that the workers fall down exists, and the repeated disassembly and assembly steps influence the maintenance operation straight-line construction period.
Disclosure of Invention
The utility model aims to solve the technical problems that: the problem existing in the background art is solved, the turnover type upper and lower generator rotating sub-ladder is provided, the second inclined ladder of the step ladder can rotate and be perpendicular to the ground, and when the generator rotor is hung in and lifted out, the second inclined ladder can be turned over and retracted out of the outer circle of the generator rotor, the hanging in and the hanging out of the generator rotor are not influenced, the working efficiency is improved, and the personal safety is guaranteed.
In order to achieve the technical characteristics, the aim of the utility model is realized in the following way: the utility model provides a turn over formula generator turn over sub-ladder about, includes first inclined ladder and second inclined ladder, first inclined ladder fixed mounting is on building or structure, and the second inclined ladder passes through the articulated lower extreme of installing at first inclined ladder of pin joint, and movable mounting has first railing on the first inclined ladder, and fixed mounting has the second railing on the second inclined ladder, the second inclined ladder upwards overturns and can be perpendicular to ground around the pin joint.
The first inclined ladder and the second inclined ladder respectively comprise a plurality of stair pedals, a plurality of inclined support plates are welded on two sides of each stair pedal respectively, the width of the second inclined ladder is larger than that of the first inclined ladder, the inclined support plates on two sides of the second inclined ladder are located on the outer sides of the inclined support plates on two sides of the first inclined ladder, and hinge points are located on the inclined support plates on two sides of the first inclined ladder and the second inclined ladder.
The first fence rod comprises a vertical rod, a first hinge support, an inclined rod and a second hinge support, wherein a plurality of first hinge supports are fixedly arranged on an inclined support plate of a first inclined ladder, a plurality of second hinge supports are arranged on the lower side of the inclined rod, one end of the vertical rod is hinged with the first hinge support, the other end of the vertical rod is hinged with the second hinge support, and the adjacent vertical rods are parallel.
The hinge point comprises pin shafts which are respectively arranged at two sides of the first inclined ladder and the second inclined ladder, and after the pin shafts respectively penetrate through the inclined support plates of the first inclined ladder and the second inclined ladder, the end parts of the pin shafts are provided with limiting rings which are limited through pins arranged on the pin shafts.
The hinge point department of first inclined ladder and second inclined ladder still installs positioner, positioner includes locating plate and reference column, and locating plate one end is rotated and is installed in the outside of second inclined ladder, and reference column fixed mounting is in the outside of first inclined ladder, the other end of locating plate is equipped with the bayonet socket, and when second inclined ladder was perpendicular with ground, the bayonet socket of locating plate can catch on the reference column.
And a hanging ring is further arranged on the outer side of the lower end of the second inclined ladder.
The utility model has the following beneficial effects:
1. the first inclined ladder is fixedly arranged on a building or a structure, the second inclined ladder is hinged to the lower end of the first inclined ladder through a hinge point, the first inclined ladder is movably provided with a first railing, the second inclined ladder is fixedly provided with a second railing, and the second inclined ladder can be turned upwards around the hinge point and can be perpendicular to the ground. The second inclined ladder of the step ladder can rotate and be perpendicular to the ground, and can be folded and retracted to be beyond the outer circle of the generator rotor when the generator rotor is hung in and lifted out, so that the hanging in and the hanging out of the generator rotor are not influenced, the working efficiency is improved, and the personal safety is guaranteed.
2. When the second inclined ladder is turned to be vertical to the ground, the first railing is not required to be disassembled, the first railing only needs to be folded downwards, so that the first railing cannot interfere with the second inclined ladder, the use is convenient,
3. the positioning device is arranged, so that when the second inclined ladder is turned to be in a state perpendicular to the ground, the second inclined ladder can be limited through the first inclined ladder.
Drawings
Fig. 1 is a schematic view of the utility model in a state of deployment.
Fig. 2 is a schematic diagram of the state of the utility model when it is turned over.
Fig. 3 is an enlarged schematic view of the structure at a in fig. 1.
Fig. 4 is an enlarged schematic view of the structure at B in fig. 1.
FIG. 5 is a schematic view of the cross-sectional structure of C-C in FIG. 1.
Fig. 6 is an enlarged schematic view of the structure of fig. 2 at D.
In the figure: the first inclined ladder 1, the inclined support plate 11, the stair tread 12, the second inclined ladder 2, the platform 3, the steel structure support 4, the first railing 5, the vertical rod 51, the first hinge support 52, the inclined rod 53, the second hinge support 54, the second railing 6, the hinge point 7, the pin shaft 71, the limiting ring 72, the pin 73, the hanging ring 8, the positioning device 9, the positioning plate 91, the positioning column 93 and the bayonet 92.
Detailed Description
Embodiments of the present utility model will be further described with reference to the accompanying drawings.
Referring to fig. 1-6, the turning type up-down generator turning sub-ladder comprises a first inclined ladder 1 and a second inclined ladder 2, wherein the first inclined ladder 1 is fixedly installed on a building or a structure, the second inclined ladder 2 is hinged to the lower end of the first inclined ladder 1 through a hinge point 7, a first railing 5 is movably installed on the first inclined ladder 1, a second railing 6 is fixedly installed on the second inclined ladder 2, and the second inclined ladder 2 can be turned upwards around the hinge point 7 and can be perpendicular to the ground. The second inclined ladder 2 of the step ladder can rotate and be perpendicular to the ground, and when the generator rotor is hung in and lifted out, the second inclined ladder 2 can be folded and retracted out of the outer circle of the generator rotor, so that the hanging in and the hanging out of the generator rotor are not influenced, the working efficiency is improved, and the personal safety is guaranteed.
Specifically, referring to fig. 1, the upper end of a first inclined ladder 1 is fixed with a platform 3 of a building, and the lower end is supported and fixed by a structure steel bracket 4. The first railing 5 is movably arranged on the first inclined ladder 1, so that the first railing 5 does not interfere with the second inclined ladder 2 when the second inclined ladder 2 is turned over. The first rail 5 may be a movable mounting structure which is convenient to disassemble, or may be a hinged movable structure as shown in fig. 1 and 2.
In the preferred scheme, referring to fig. 1 and 2, the first inclined ladder 1 and the second inclined ladder 2 respectively comprise a plurality of stair treads 12, a plurality of inclined support plates 11 are welded on two sides of each stair tread, the width of the second inclined ladder 2 is larger than that of the first inclined ladder 1, the inclined support plates 11 on two sides of the second inclined ladder 2 are positioned on the outer sides of the inclined support plates 11 on two sides of the first inclined ladder 1, and the hinge points 7 are positioned on the inclined support plates 11 on two sides of the first inclined ladder 1 and the second inclined ladder 2. Simple structure and convenient support. In addition to the above-described structure, the first ramp 1 and the second ramp 2 may be identical in width, and hinged after half the thickness of the opposite sides of the ramp supporting plates 11 of the first ramp 1 and the second ramp 2, respectively.
Referring to fig. 3 and 4, the first rail 5 includes a vertical rod 51, a first hinge support 52, a diagonal rod 53 and a second hinge support 54, a plurality of the first hinge supports 52 are fixedly mounted on the diagonal support plate 11 of the first diagonal ladder 1, a plurality of the second hinge supports 54 are mounted on the lower side of the diagonal rod 53, one end of the vertical rod 51 is hinged with the first hinge support 52, the other end is hinged with the second hinge support 54, and adjacent vertical rods 51 are parallel. Through the structure, when the second inclined ladder 2 is turned to be in a state perpendicular to the ground, the first railing 5 does not need to be disassembled, and the first railing 5 only needs to be folded downwards, so that the second inclined ladder 2 cannot be interfered, and the stair tread 12 of the second inclined ladder 2 is convenient to use, see fig. 6, and does not interfere with the first railing 5.
Specifically, the second balustrade 6 is fixedly connected to the second inclined ladder 2, so that the first hinge support 52 and the second hinge support 54 in the first balustrade 5 are not required, but the lower end of the inclined rod 53 is directly connected and fixed with the inclined support plate, and the upper end of the inclined rod is connected and fixed with the inclined rod.
Referring to fig. 5, the hinge point 7 includes pins 71 respectively mounted on both sides of the first ramp 1 and the second ramp 2, and after the pins 71 respectively pass through the inclined support plates 11 of the first ramp 1 and the second ramp 2, the end portions are mounted with limiting rings 72, and the limiting rings 72 are limited by pins 73 mounted on the pins 71, so that the structure is simple and the installation is convenient.
Referring to fig. 1, 2 and 6, a positioning device 9 is further installed at the hinge point 7 of the first inclined ladder 1 and the second inclined ladder 2, the positioning device 9 comprises a positioning plate 91 and a positioning column 93, one end of the positioning plate 91 is rotatably installed on the outer side of the second inclined ladder 2, the positioning column 93 is fixedly installed on the outer side of the first inclined ladder 1, a bayonet 92 is arranged at the other end of the positioning plate 91, and when the second inclined ladder 2 is perpendicular to the ground, the bayonet 92 of the positioning plate 91 can hook the positioning column 93. The positioning device 9 is arranged, so that when the second inclined ladder 2 is turned to be in a state perpendicular to the ground, the first inclined ladder 1 can be used for limiting.
Referring to fig. 1 and 2, a hanging ring 8 is further installed on the outer side of the lower end of the second inclined ladder 2. The second inclined ladder 2 is conveniently lifted and turned over by a crane by arranging the lifting ring 8.
The working process and principle of the utility model are as follows:
personnel need to enter above the rotor, and the second inclined ladder 2 is opened into the state shown in fig. 1 by using the crane assistance; when the generator rotor needs to be hung in and hung, the lifting hook of the crane is connected with the lifting ring 8 through the steel wire rope, so that the second inclined ladder 2 is turned over and is in a state shown in the figure 2 vertical to the ground, the first railing 5 is folded downwards before the second inclined ladder 2 and cannot interfere with the second inclined ladder 2, and then the bayonet 92 of the positioning plate 91 hooks the positioning column 93, so that the second inclined ladder 2 is fixed.
In the state shown in fig. 1, the first rail 5 may be connected to the second rail 6 by a rope or a buckle, so as to prevent the first rail 5 from being folded and losing its protective function.
Claims (6)
1. The utility model provides a turn over type generator turning sub-step about, its characterized in that, including first inclined ladder (1) and second inclined ladder (2), first inclined ladder (1) fixed mounting is on building or structure, and second inclined ladder (2) are articulated to be installed in the lower extreme of first inclined ladder (1) through hinge point (7), and first railing (5) are installed to the last movable of first inclined ladder (1), and fixed mounting has second railing (6) on second inclined ladder (2), second inclined ladder (2) upwards overturn and can be perpendicular to ground around hinge point (7).
2. The turnover type up-down generator turning sub-ladder of claim 1, wherein: the first inclined ladder (1) and the second inclined ladder (2) respectively comprise a plurality of stair pedals (12), a plurality of inclined support plates (11) are welded on two sides of each stair pedal respectively, the width of the second inclined ladder (2) is larger than that of the first inclined ladder (1), the inclined support plates (11) on two sides of the second inclined ladder (2) are located on the outer sides of the inclined support plates (11) on two sides of the first inclined ladder (1), and hinge points (7) are located on the inclined support plates (11) on two sides of the first inclined ladder (1) and the second inclined ladder (2).
3. The turnover type up-down generator turning sub-ladder of claim 1, wherein: the first railing (5) comprises a vertical rod (51), a first hinged support (52), a diagonal rod (53) and a second hinged support (54), wherein a plurality of the first hinged supports (52) are fixedly arranged on the diagonal support plate (11) of the first inclined ladder (1), a plurality of the second hinged supports (54) are arranged on the lower side of the diagonal rod (53), one end of the vertical rod (51) is hinged with the first hinged support (52), the other end of the vertical rod is hinged with the second hinged support (54), and the vertical rods (51) are parallel.
4. The turnover type up-down generator turning sub-ladder of claim 1 or 2, wherein: the hinge point (7) comprises pin shafts (71) which are respectively arranged at two sides of the first inclined ladder (1) and the second inclined ladder (2), and after the pin shafts (71) respectively penetrate through the inclined support plates (11) of the first inclined ladder (1) and the second inclined ladder (2), limiting rings (72) are arranged at the end parts of the pin shafts, and the limiting rings (72) are limited through pins (73) arranged on the pin shafts (71).
5. The turnover type up-down generator turning sub-ladder of claim 1, wherein: the positioning device is characterized in that a positioning device (9) is further arranged at a hinge point (7) of the first inclined ladder (1) and the second inclined ladder (2), the positioning device (9) comprises a positioning plate (91) and a positioning column (93), one end of the positioning plate (91) is rotatably arranged on the outer side of the second inclined ladder (2), the positioning column (93) is fixedly arranged on the outer side of the first inclined ladder (1), a bayonet (92) is arranged at the other end of the positioning plate (91), and the bayonet (92) of the positioning plate (91) can hook the positioning column (93) when the second inclined ladder (2) is perpendicular to the ground.
6. The turnover type up-down generator turning sub-ladder of claim 1, wherein: and a hanging ring (8) is further arranged on the outer side of the lower end of the second inclined ladder (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320421186.2U CN220059432U (en) | 2023-03-08 | 2023-03-08 | Turning type up-down generator turning sub-ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320421186.2U CN220059432U (en) | 2023-03-08 | 2023-03-08 | Turning type up-down generator turning sub-ladder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220059432U true CN220059432U (en) | 2023-11-21 |
Family
ID=88788324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320421186.2U Active CN220059432U (en) | 2023-03-08 | 2023-03-08 | Turning type up-down generator turning sub-ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220059432U (en) |
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2023
- 2023-03-08 CN CN202320421186.2U patent/CN220059432U/en active Active
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