Portable mobile platform for stator and rotor assembly

Abstract

The utility model provides a portable mobile platform for stator and rotor assembly, which belongs to the technical field of stator and rotor assembly of large pumped storage power stations and comprises a plurality of isosceles trapezoid plates, supporting pieces and annular plates. According to the utility model, by designing the isosceles trapezoid plates, the supporting pieces and the annular plates, the plurality of isosceles trapezoid plates form the annular platform with the regular polygon outline, and before the rotor is hoisted into a machine pit in place, the annular plates and the rail clamping pieces are fixedly arranged on the framework of the stator / other external brackets; the whole structure formed by the isosceles trapezoid plate and the supporting piece is installed on the rail clamping piece in a hoisting mode through a hoisting instrument, then the follow-up construction that the rotor is hoisted into a machine pit in place is carried out, an operation platform is provided for field auxiliary operation personnel, and meanwhile the effect of safety protection on the stator of the pumped storage power station is achieved.

Description

Technical Field

[0001] This utility model relates to the field of stator and rotor assembly technology for large pumped storage power stations, specifically a portable mobile platform for stator and rotor assembly. Background Technology

[0002] The construction process of hoisting the rotor of the hydro-generator unit into the pit involves complicated procedures and a large number of on-site auxiliary workers, which can easily lead to trampling and damage to equipment such as stator bars. Moreover, there is no construction safety guarantee for personnel working at heights, posing a great risk to personal safety.

[0003] Pumped storage power stations typically have two (or more) stator stations. Building / assembling traditional platform structures is time-consuming and labor-intensive. Therefore, this utility model provides a portable mobile platform for stator and rotor assembly. Utility Model Content

[0004] To address the time-consuming and labor-intensive problem of erecting / assembling traditional platform structures during the construction process of hoisting the rotor of a hydro-generator unit into the pit, this utility model provides a portable mobile platform for assembling the stator and rotor.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A portable mobile platform for assembling stators and rotors, comprising:

[0007] Multiple isosceles trapezoidal plates form a ring platform with a regular polygonal outline;

[0008] A support member, the top of which is fixedly connected to the bottom surface of an isosceles trapezoidal plate, and a locking head is provided at the bottom end of the support member;

[0009] An annular plate is fixedly mounted on the stator frame, and a locking rail corresponding to the locking head is provided on the top of the annular plate.

[0010] As a further description of the above technical solution:

[0011] The two adjacent isosceles trapezoidal plates are fixedly connected by steel plates.

[0012] As a further description of the above technical solution:

[0013] An outer guardrail is fixedly installed at the top of the isosceles trapezoidal plate near the outer side, and an inner guardrail is fixedly installed at the top of the isosceles trapezoidal plate near the inner side.

[0014] As a further description of the above technical solution:

[0015] The support member includes:

[0016] A support column, the top of which is fixedly connected to a mounting platform, the mounting platform being fixedly installed to an isosceles trapezoidal plate by bolts, and the bottom of which is provided with an insertion hole;

[0017] A connector is provided with a nut threaded on its side and near its top, and a clamp is fixedly connected to the bottom of the connector.

[0018] As a further description of the above technical solution:

[0019] An L-shaped ring frame is fixedly connected to the side of the rail component, and an insertion port is formed between the inner side of the L-shaped ring frame and the rail component, with the clamp head located inside the insertion port.

[0020] As a further description of the above technical solution:

[0021] A gap is provided between the bottom of the L-shaped ring frame and the top of the ring plate, and a limiting groove is provided on the outer side of the card head;

[0022] It also includes a crossbar, which is fixedly installed on the outside of the L-shaped ring frame by screws, and the two prongs of the crossbar are located inside the gap opening and the limiting groove, respectively.

[0023] As a further description of the above technical solution:

[0024] The L-shaped ring frame is provided in two sets.

[0025] The beneficial effects of this utility model are:

[0026] This invention utilizes an isosceles trapezoidal plate, supporting components, and an annular plate. Multiple isosceles trapezoidal plates form an annular platform with a regular polygonal outline. Before the rotor is hoisted into the pit, the annular plate and rail clamping components are fixedly installed on the stator frame / other external supports. Then, hoisting equipment is used to hoist the overall structure composed of the isosceles trapezoidal plate and supporting components onto the rail clamping components. Subsequently, the rotor is hoisted into the pit for positioning. This provides a working platform for on-site auxiliary personnel and also serves to protect the stator of the pumped storage power station. Attached Figure Description

[0027] The following figures are shown to more clearly illustrate a portable mobile platform for assembling stators and rotors;

[0028] Figure 1 This is a top view of the present invention;

[0029] Figure 2 This is a cross-sectional schematic diagram of the present invention;

[0030] Figure 3 for Figure 2 A magnified view of a portion of point A in the middle.

[0031] The labels in the attached diagram;

[0032] 1. Isosceles trapezoidal plate; 2. Outer guardrail; 3. Inner guardrail; 4. Support column; 5. Mounting platform; 6. Plug-in bracket; 7. Nut; 8. Socket; 9. Clip; 10. Ring plate; 11. Rail clamp; 12. Screw; 13. L-shaped ring frame; 14. Socket; 15. Crossbar; 16. Gap opening; 17. Restriction groove. Detailed Implementation

[0033] Please refer to the attached document. Figure 1 , 2 This application illustrates a portable mobile platform for stator and rotor assembly, which is used to provide a working platform for on-site auxiliary workers during the construction process of hoisting the rotor into the pit after the stator of the pumped storage power station is installed. It also plays a role in protecting the stator of the pumped storage power station. Specifically, it includes: multiple isosceles trapezoidal plates 1, support members, and annular plates 10.

[0034] like Figure 1 As shown, multiple isosceles trapezoidal plates 1 form an annular platform with a regular polygonal outline. There can be 6, 8, or 12 isosceles trapezoidal plates 1. The number of support members can be twice that of the isosceles trapezoidal plates 1. The top of the support member is fixedly connected to the bottom surface of the isosceles trapezoidal plate 1. The bottom end of the support member is provided with a clamping head 9. The annular plate 10 is fixedly installed on the frame of the stator. The top of the annular plate 10 is provided with a clamping rail member 11 corresponding to the clamping head 9.

[0035] Before the rotor is hoisted into the pit, the annular plate 10 and the rail clamping component 11 are fixedly installed on the stator frame / other external support. Then, the integral structure consisting of the isosceles trapezoidal plate 1 and the support component is hoisted and installed on the rail clamping component 11 using hoisting equipment. Then, the subsequent construction of hoisting the rotor into the pit is carried out. After the stator installation of the stator station of another pumped storage power station is completed, the annular plate 10 and the rail clamping component 11 are also installed. The integral structure consisting of the isosceles trapezoidal plate 1 and the support component is hoisted and installed on the rail clamping component 11 using hoisting equipment. Then, the subsequent construction of hoisting the rotor into the pit is carried out. The whole process only requires one set of integral structure consisting of the isosceles trapezoidal plate 1 and the support component.

[0036] In one embodiment, two adjacent isosceles trapezoidal plates 1 are fixedly connected by steel plates, that is, the two sides of a steel plate are fixedly installed together with two adjacent isosceles trapezoidal plates 1 by bolts.

[0037] In one embodiment, an outer guardrail 2 is fixedly installed on the top of the isosceles trapezoidal plate 1 near the outer side, and an inner guardrail 3 is fixedly installed on the top of the isosceles trapezoidal plate 1 near the inner side. Both the inner guardrail 3 and the outer guardrail 2 serve to provide safety protection.

[0038] In one embodiment, the support includes: a support column 4, a connector 6, and a clip 9.

[0039] The top of the support column 4 is fixedly connected to the mounting platform 5, which is fixedly installed to the isosceles trapezoidal plate 1 by bolts. The bottom end of the support column 4 is provided with a plug hole 8. The side of the plug-in bracket 6 and near the top end are threaded with a nut 7. The bottom end of the plug-in bracket 6 is fixedly connected to a clip 9.

[0040] In use, by rotating the nut 7, which rests against the bottom of the support column 4, the position of the plug-in bracket 6 can be adjusted, thereby adjusting the overall length of the support column 4, the plug-in bracket 6, and the clamp 9, so that the annular platform with a regular polygonal outline formed by multiple isosceles trapezoidal plates 1 can be adjusted to be in a horizontal state.

[0041] In one embodiment, an L-shaped ring frame 13 is fixedly connected to the side of the rail member 11. An insertion port 14 is formed between the inner side of the L-shaped ring frame 13 and the rail member 11. The locking head 9 is located inside the insertion port 14. Two L-shaped ring frames 13 can be designed and distributed on the inner and outer sides of the rail member 11. The locking head 9 is designed as an inverted U-shaped structure.

[0042] In one embodiment, a gap 16 is provided between the bottom of the L-shaped ring frame 13 and the top of the annular plate 10, and a limiting groove 17 is provided on the outer side of the clip 9.

[0043] The design also includes a crossbar 15, which is fixedly mounted on the outside of the L-shaped ring frame 13 by screws 12. The two prongs of the crossbar 15 are located inside the gap 16 and the limiting groove 17, respectively, thereby further fixing the clamp 9 to the L-shaped ring frame 13 and preventing the clamp 9 from shaking or coming off.

[0044] Other embodiments of the present invention will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of the present invention are indicated by the following claims.

[0045] It should be understood that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. This invention is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this invention is limited only by the appended claims.

Claims

1. A portable mobile platform for assembling stator and rotor, characterized in that, include: Multiple isosceles trapezoidal plates (1) form an annular platform with a regular polygonal outline; The top end of the support is fixedly connected to the bottom surface of the isosceles trapezoidal plate (1), and the bottom end of the support is provided with a clip (9); An annular plate (10) is fixedly installed on the frame of the stator, and a locking rail (11) corresponding to the locking head (9) is provided on the top of the annular plate (10).

2. The portable mobile platform for assembling stator and rotor according to claim 1, characterized in that: The two adjacent isosceles trapezoidal plates (1) are fixedly connected by steel plates.

3. The portable mobile platform for assembling stator and rotor according to claim 1, characterized in that: An outer guardrail (2) is fixedly installed on the top of the isosceles trapezoidal plate (1) and near the outer side, and an inner guardrail (3) is fixedly installed on the top of the isosceles trapezoidal plate (1) and near the inner side.

4. A portable mobile platform for assembling stator and rotor according to claim 1, characterized in that, The support member includes: A support column (4) is provided, and a mounting platform (5) is fixedly connected to the top of the support column (4). The mounting platform (5) is fixedly installed with the isosceles trapezoidal plate (1) by bolts. An insertion hole (8) is provided at the bottom of the support column (4). A plug-in bracket (6) is provided with a nut (7) threaded on its side and near its top end, and a clamp (9) is fixedly connected to the bottom end of the plug-in bracket (6).

5. A portable mobile platform for assembling stator and rotor according to claim 4, characterized in that: The side of the rail member (11) is fixedly connected to an L-shaped ring frame (13), and an insertion port (14) is formed between the inner side of the L-shaped ring frame (13) and the rail member (11). The clamp head (9) is located inside the insertion port (14).

6. A portable mobile platform for assembling stator and rotor according to claim 5, characterized in that: A gap (16) is provided between the bottom of the L-shaped ring frame (13) and the top of the ring plate (10), and a limiting groove (17) is provided on the outer side of the card head (9); It also includes a crossbar (15), which is fixedly installed on the outside of the L-shaped ring frame (13) by screws (12), and the two prongs of the crossbar (15) are located inside the gap (16) and the limiting groove (17), respectively.

7. A portable mobile platform for assembling stator and rotor according to claim 5, characterized in that: The L-shaped ring frame (13) is provided in two sets.

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