CN219548346U - Water turbine spindle dismounting platform - Google Patents

Abstract

The utility model provides a water turbine main shaft dismounting platform which comprises a supporting platform, wherein arc-shaped supporting ends are arranged at two ends of the supporting platform, the arc-shaped supporting ends are fixed on a top cover upper flange, a through hole for a water turbine main shaft to pass through is formed in the middle of the supporting platform, extension platforms are arranged at two sides of the supporting platform, outer fences are arranged at two sides of the supporting platform and at the outer sides of the extension platforms, and inner fences are arranged at the positions of the through holes. The dismounting platform provides a safety platform for the generator shaft and the supporting cover to be dismounted and then to be mounted and dismounted, so that the personal safety of field operators is practically ensured.

Description

Water turbine spindle dismounting platform

Technical Field

The utility model relates to the field of water turbine installation equipment, in particular to a water turbine spindle dismounting platform.

Background

In the process of updating and reforming the unit, the hydropower station needs to hoist the main shaft of the water turbine for replacement, but after the supporting cover is hoisted out, on-site constructors cannot directly work at the main shaft of the water turbine and cannot directly perform work such as height measurement of the main shaft of the water turbine and installation of a lifting appliance, so that a construction operation platform needs to be designed and manufactured, and a convenient and reliable operation environment is provided for the constructors, so that the updating and reforming tasks of the unit can be safely and efficiently completed.

Disclosure of Invention

The technical problem to be solved by the utility model is to provide a water turbine spindle dismounting platform, which provides a safety platform for mounting and dismounting a water turbine spindle lifting appliance after dismounting a generator spindle and a supporting cover, and really ensures the personal safety of field operators.

In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a hydraulic turbine main shaft dismouting platform, includes supporting platform, and the supporting platform both ends are equipped with the arc supporting terminal, and the arc supporting terminal is fixed at the top cap flange, and the supporting platform middle part is equipped with the through-hole that water supply turbine main shaft passed, and the supporting platform both sides are equipped with and extend the platform, and the supporting platform both sides and extend the platform outside and be equipped with outer rail, and the through-hole position is equipped with interior rail.

In a preferred scheme, the supporting platform comprises a platform steel beam and a platform plate fixed on the platform steel beam.

In the preferred scheme, the platform girder steel includes girder and secondary beam, and the secondary beam sets up between the girder, and the girder includes two sets of first girders that set up along supporting platform length, is equipped with two at least sets of second girders between two sets of first girders, is equipped with the third girder along extending the platform outside, and the third girder is connected with first girder.

In the preferred scheme, the backup pad that the slope set up is set up at first girder both ends.

In the preferred scheme, peripheral fence and interior rail all include railing and set up the connecting plate at the railing lower extreme.

The water turbine spindle dismounting platform provided by the utility model provides a safety platform for mounting and dismounting the water turbine spindle lifting appliance after the generator spindle and the supporting cover are dismounted, so that the personal safety of field operators is practically ensured. Simple structure, easy dismounting can hang into the top cap upside of flange after factory building hall combined installation, reduces the operation risk that high altitude welding brought. The platform directly adopts the top cover and the supporting cover to limit the closing surface, and can be stably supported on the upper plane of the top cover, so that the safety and reliability of the platform are further enhanced.

Drawings

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

FIG. 1 is a top view of the present utility model;

FIG. 2 is a cross-sectional view taken along the plane I-I of FIG. 1;

FIG. 3 is a schematic view of a platform steel beam;

FIG. 4 is a schematic view of the installation of an outer rail;

FIG. 5 is a schematic view of the connection structure of the peripheral or inner rail;

in the figure: the support platform 1, the top cover upper flange 2, the main shaft 3 of the water turbine, the peripheral fence 4, the inner fence 5, the platform steel beam 6, the platform plate 7, the railing 8, the connecting plate 9, the arc-shaped support end 101, the through hole 102, the extension platform 103, the first main beam 601, the second main beam 602, the third main beam 603, the secondary beam 604 and the support plate 605.

Detailed Description

As shown in fig. 1-4, a water turbine main shaft disassembly and assembly platform comprises a supporting platform 1, arc-shaped supporting ends 101 are arranged at two ends of the supporting platform 1, the arc-shaped supporting ends 101 are fixed on a top cover upper flange 2, a through hole 102 for a water turbine main shaft 3 to pass through is arranged in the middle of the supporting platform 1, the size of the through hole 102 is phi 2900mm, the main shaft is not hindered from being hung out, and gaps between the platform and the main shaft are reduced as much as possible. The supporting platform 1 both sides are equipped with and extend the platform 103, conveniently carry out pedestrian and hoist and mount operation, and supporting platform 1 both sides and extend the platform 103 outside and be equipped with outer rail 4, and through-hole 102 position is equipped with interior rail 5, and interior rail 5 can set up to square guardrail.

The bearing of the platform is not less than 1000kg, the safety coefficient is not less than 2.5 times, and the platform can meet the requirement of four people to work simultaneously.

Preferably, the support platform 1 comprises a platform steel beam 6 and a platform plate 7 fixed on the platform steel beam 6.

The platform girder steel 6 includes girder and secondary beam 604, and the girder includes two sets of first girders 601 that set up along supporting platform 1 length, is equipped with two at least sets of second girders 602 between two sets of first girders 601, and first girder 601 sets up with second girder 602 is perpendicular, is equipped with third girder 603 along extending the platform 103 outside, and third girder 603 is connected with first girder 601. The secondary beams 604 are arranged between the main beams, in particular, the secondary beams 604 are arranged between two sets of first main beams 601 and between the first main beams 601 and the third main beams 603, the secondary beams 604 being arranged perpendicular to the first main beams 601.

The two ends of the first main beam 601 are provided with support plates 605 which are obliquely arranged. The support plate 605 supports the arc-shaped end of the platform plate 7.

Preferably, as shown in fig. 5, the peripheral rail 4 and the inner rail 5 each include a rail 8 and a connection plate 9 provided at a lower end of the rail 8. The railing 8 all includes horizontal square pipe and a plurality of vertical rectangular pipe, and connecting plate 9 passes through the bolt and is connected with supporting platform 1.

The skirting boards are arranged at the bottoms of the inner side of the outer fence 4 and the bottom of the outer side of the inner fence 5, and the bottoms of the outer fence 4 and the inner fence 5 are protected to prevent tools from falling from the gap of the railing 8.

When the main shaft of the water turbine is disassembled: the hydraulic turbine main shaft disassembly platform is installed after oil is discharged in the main shaft, the rotating wheel operation platform is installed, the rotating wheel coupling bolt protection cover is disassembled, the rotating wheel coupling bolt stop block is planed and the bolts are disassembled. And after the platform is installed, the main shaft lifting tool is installed, the main shaft and the operating oil pipe are lifted out, and the platform is disassembled after the work is completed.

When the main shaft of the water turbine is installed: the hydraulic turbine main shaft disassembly platform is installed after accessories such as a hydraulic turbine main shaft and bolts are cleaned and inspected, an operation oil pipe in the hydraulic turbine main shaft is installed after the platform is installed, a hydraulic turbine main shaft radial positioning pin is installed, a main shaft lifting tool is installed, a main shaft is lifted, a coupling bolt is installed, a welding bolt stop block is arranged, a coupling bolt shield is installed, a main shaft lifting tool is disassembled and the like are operated, and platform disassembly is carried out after the operation is completed.

The dismantling platform provides a safety platform for lifting appliance installation and adjustment during maintenance and disassembly of the main shaft of the hydraulic turbine of the hydropower station, can effectively reduce the falling risk of operation personnel from 45.52m Gao Chenglin side, ensures the personal safety of the constructor during high-altitude operation, and has great practical value.

The hydraulic turbine main shaft dismouting platform simple structure, easy dismounting can hang into top cap flange 2 upside after factory building hall composite installation, reduces the operation risk that high altitude welding brought, provides safe and reliable's operation platform for constructor, ensures operating personnel's personal safety. The water turbine main shaft dismounting platform directly adopts the top cover and the supporting cover to limit the joint surface, can be stably supported on the upper plane of the top cover, and further enhances the safety and reliability of the platform.

Claims (5)

1. The utility model provides a hydraulic turbine main shaft dismouting platform which characterized in that: including supporting platform (1), supporting platform (1) both ends are equipped with arc supporting end (101), and arc supporting end (101) are fixed flange (2) on the top cap, and supporting platform (1) middle part is equipped with through-hole (102) that water supply turbine main shaft (3) passed, and supporting platform (1) both sides are equipped with extension platform (103), and supporting platform (1) both sides and extension platform (103) outside are equipped with outer rail (4), and through-hole (102) position is equipped with interior rail (5).

2. The hydraulic turbine main shaft disassembly and assembly platform according to claim 1, wherein: the supporting platform (1) comprises a platform steel beam (6) and a platform plate (7) fixed on the platform steel beam (6).

3. The hydraulic turbine main shaft disassembly and assembly platform according to claim 2, wherein: the platform girder steel (6) includes girder and secondary beam (604), and secondary beam (604) set up between the girder, and the girder includes two sets of first girders (601) that set up along supporting platform (1) length, is equipped with two at least sets of second girders (602) between two sets of first girders (601), is equipped with third girder (603) along extension platform (103) outside, and third girder (603) are connected with first girder (601).

4. A hydraulic turbine main shaft assembly and disassembly platform according to claim 3, wherein: support plates (605) are obliquely arranged at two ends of the first main beam (601).

5. A hydraulic turbine main shaft assembly and disassembly platform according to claim 3, wherein: the peripheral fence (4) and the inner fence (5) comprise a railing (8) and a connecting plate (9) arranged at the lower end of the railing (8).