Rotor coil inserting device of steam turbine generator

Abstract

The utility model relates to the technical field of generator rotor coil assembly, in particular to a turbonator rotor coil inserting device which comprises a bearing frame and a suspension assembly. The bottom of the bearing frame has a space for accommodating a generator rotor, and the top of the bearing frame is provided with a plurality of mounting assemblies. The suspension assembly comprises coil supports and a support suspension assembly, the support suspension assembly is connected with the mounting assembly on the bearing frame, the coil supports are arranged on the support suspension assembly, and two vertical hanging plates are arranged on the coil supports in parallel. A plurality of pin holes are formed in the vertical hanging plates in the vertical direction, the pin holes in the two vertical hanging plates are in one-to-one correspondence to form a plurality of pairs of pin holes, an insulating pin is inserted into each pair of pin holes, and the insulating pins are used for placing coils. The utility model has the advantages that the bearing frame is matched with the suspension component to hoist the coil, thereby avoiding occupying a crane for a long time; and each turn of the coil is separately placed through the coil bracket, so that turn-to-turn insulation is protected, and an operator can insert the coil conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of generator rotor coil assembly, in particular to a turbine generator rotor coil wire embedding device. Background Art

[0002] The prime mover of the steam turbine generator is the steam turbine. Due to the high speed of the steam turbine and the limitation of mechanical strength, the rotor of the steam turbine generator adopts a hidden pole structure. For the rotor coil of the hidden pole synchronous motor, there are multiple coils per pole, and the sizes of each coil are different. When embedding the rotor coil, a crane is needed to lift the coil, and the operator separates the turns of each coil for embedding. However, this embedding method has the following disadvantages: 1. Since a crane is needed when embedding the rotor coil, the offline time is long, which seriously wastes crane resources; 2. When embedding, the operator must separate each turn of each coil package before embedding, which may cause quality problems such as displacement and breakage of the coil turns; 3. The crane is unstable during the embedding process, and the safety during operation is poor. Utility Model Content

[0003] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a turbine generator rotor coil embedding device to solve at least one of the above technical problems.

[0004] The purpose of the utility model is achieved through the following technical solutions: a turbine generator rotor coil embedding device, comprising a load-bearing frame and a suspension assembly; the bottom of the load-bearing frame has a space for accommodating the generator rotor, and the top of the load-bearing frame is provided with a plurality of mounting assemblies; the suspension assembly comprises a coil bracket and a bracket suspension assembly, the bracket suspension assembly is connected to the mounting assembly on the load-bearing frame, and a plurality of coil brackets are arranged on the bracket suspension assembly, and two vertical hanging plates are arranged in parallel on the coil bracket, and a plurality of pin holes are arranged on the vertical hanging plate in a vertical direction, and the pin holes on the two vertical hanging plates on the same coil bracket correspond to each other to form a plurality of pairs of pin holes, and an insulating pin is inserted in each pair of the pin holes, and the insulating pin is used to place the coil. The utility model places the coil by arranging a plurality of coil brackets, and a plurality of insulating pins are arranged on a single coil bracket. After the coil is placed, only a single-turn coil is placed on each insulating pin, so that each turn of the coil is separated separately, the insulation between the turns is protected, and it is convenient for the operator to embed the wire.

[0005] In some embodiments, the mounting assembly includes a mounting tube and a support arm, the mounting tube is vertically arranged and fixedly connected to the load-bearing frame, and the support arm is inserted in the mounting tube; the support arm is vertically arranged with a plurality of adjustment holes, the mounting tube is provided with a positioning hole, a positioning pin is inserted in the positioning hole, and the positioning pin passes through the adjustment hole; a mounting position is provided at the top of the support arm, and the suspension assembly is connected to the mounting position. By matching different adjustment holes on the support arm with the positioning holes on the mounting tube, the height of the support arm can be adjusted, and then the height of the suspension assembly connected to the support arm can be adjusted, so that the device can adapt to rotors of different sizes.

[0006] In some embodiments, a channel steel is disposed on the top of the support arm, the slot of the channel steel is disposed upward, and the slot of the channel steel forms the installation position. The slot on the channel steel is used to make the suspension assembly more stable when placed.

[0007] In some embodiments, the bracket suspension assembly includes a crossbeam and a longitudinal beam, two crossbeams are arranged in parallel, two ends of a plurality of longitudinal beams are respectively connected to the two crossbeams, both crossbeams are connected to the mounting assembly, and the coil bracket is connected to the longitudinal beams. The crossbeams and the longitudinal beams form a frame structure to provide a connection point for the coil bracket.

[0008] In some embodiments, the cross beam is provided with a plurality of connection holes along the length direction of the cross beam, and the two ends of the longitudinal beam are bolted to the cross beam through the connection holes. By providing a plurality of connection holes on the cross beam, the longitudinal beam can be connected to the connection holes at different positions to change the lateral position of the longitudinal beam, thereby changing the position of the coil support, so that the device can be applied to rotors of more sizes.

[0009] In some embodiments, the longitudinal beam is provided with a waist-shaped hole, the length direction of the waist-shaped hole is the length direction of the longitudinal beam, and the coil support is bolted to the longitudinal beam through the waist-shaped hole. Through the waist-shaped hole on the longitudinal beam, the position of the coil support can be moved longitudinally, so that the device can be applied to rotors of more sizes.

[0010] In some embodiments, the cross beam is provided with a lifting lug, which is convenient for lifting with a crane when installing the suspension component or adjusting the height of the suspension component.

[0011] In some embodiments, a pedal is provided on the top of the load-bearing frame, and a pedal is provided on the top of the load-bearing frame to provide an operating surface for an operator when adjusting the height of the support arm.

[0012] In some embodiments, a ladder is provided on the side of the load-bearing frame, which facilitates operators to climb onto the pedals on the top of the load-bearing frame.

[0013] The utility model has the following advantages:

[0014] The coil is suspended by a suspension assembly arranged on a load-bearing frame to avoid long-term occupation of the crane; a plurality of insulating pins are arranged on a single coil bracket so that only a single turn of the coil is placed on the single insulating pin, thereby separating each turn of the coil, protecting the insulation between turns and facilitating the operator to insert the wire; through the load-bearing frame, the coil can be stably placed on the suspension assembly, is not prone to shaking, and improves the safety during the wire inserting operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a side view of the steam turbine generator rotor coil embedding device of the utility model;

[0016] Figure 2 It is a top view of the steam turbine generator rotor coil embedding device of the utility model;

[0017] Figure 3 It is a front view of the load-bearing frame of the utility model;

[0018] Figure 4 It is a structural schematic diagram of the load-bearing frame of the utility model;

[0019] Figure 5 It is a structural schematic diagram of the suspension assembly of the utility model;

[0020] In the figure: 1. load-bearing frame; 11. pedal; 12. ladder; 2. installation assembly; 21. support arm; 211. adjustment hole; 212. channel steel; 22. installation tube; 221. positioning hole; 23. positioning pin; 3. bracket suspension assembly; 31. cross beam; 311. connection hole; 312. lifting ear; 32. longitudinal beam; 321. waist-shaped hole; 4. coil bracket; 41. vertical hanging plate; 411. pin hole; 42. insulating pin. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the utility model clearer, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model, that is, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The components of the embodiments of the utility model described and shown in the drawings can be arranged and designed in various different configurations.

[0022] The present invention is further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0023] like Figure 1-Figure 5As shown, a turbine generator rotor coil embedding device comprises a load-bearing frame 1 and a suspension assembly; the bottom of the load-bearing frame 1 has a space for accommodating the generator rotor, and the top of the load-bearing frame 1 is provided with a plurality of mounting assemblies 2; the suspension assembly comprises a coil bracket 4 and a bracket suspension assembly 3, the bracket suspension assembly 3 is connected to the mounting assembly 2 on the load-bearing frame 1, and a plurality of the coil brackets 4 are arranged on the bracket suspension assembly 3, and two vertical hanging plates 41 are arranged in parallel on the coil bracket 4, and a plurality of pin holes 411 are arranged on the vertical hanging plates 41 along the vertical direction, and the pin holes 411 on the two vertical hanging plates 41 on the same coil bracket 4 correspond to each other to form a plurality of pairs of pin holes 411, and each pair of the pin holes 411 is inserted with an insulating pin 42, and the insulating pin 42 is used to place the coil.

[0024] Specifically, in the present embodiment, the load-bearing frame 1 is a rectangular frame structure, and a space for placing the rotor is provided at the bottom thereof. In the present embodiment, a total of four mounting assemblies 2 are provided, and the two sides of the bracket suspension assembly 3 are respectively connected to two mounting assemblies 2. In the present embodiment, the coil bracket 4 includes a horizontal connecting plate and two vertical hanging plates 41, and the two vertical hanging plates 41 are arranged in parallel at the bottom of the horizontal connecting plate. The horizontal connecting plate is connected to the bracket suspension assembly 3 by bolts, and the two vertical hanging plates 41 are provided with a plurality of pin holes 411 corresponding to each other in the vertical direction to form a plurality of pairs of pin holes 411, and an insulating pin 42 is inserted in each pair of pin holes 411, and the insulating pin 42 is used to place the coil; in the present embodiment, a total of six coil brackets 4 are provided, and the six coil brackets 4 form multiple layers of insulating pins 42 in the vertical direction, and each layer of insulating pins 42 is used to place a turn of the coil, and the multiple layers of insulating pins 42 are used to place multiple layers of coils.

[0025] When using the device, first place the rotor at the bottom of the load-bearing frame 1, separate each turn of the coil and place it on the multi-layer insulation pin 42, use the sling to lift the suspension assembly and connect the bracket suspension assembly 3 with the installation assembly 2 of the load-bearing frame 1, and remove the corresponding insulation pin 42 for each turn of the coil when installing it offline. The device provides support for the suspension assembly through the load-bearing frame 1 to avoid long-term occupation of the crane; and uses the multi-layer insulation pin 42 on the suspension assembly to separate each turn of the coil, protect the insulation between the turns, and facilitate the operator to insert the wire.

[0026] Preferably, the mounting assembly 2 includes a mounting tube 22 and a support arm 21, the mounting tube 22 is vertically arranged and fixedly connected to the load-bearing frame 1, and the support arm 21 is inserted in the mounting tube 22; a plurality of adjustment holes 211 are vertically arranged on the support arm 21, a positioning hole 221 is provided on the mounting tube 22, a positioning pin 23 is inserted in the positioning hole 221, and the positioning pin 23 passes through the adjustment hole 211; a mounting position is provided on the top of the support arm 21, and the suspension assembly is connected to the mounting position. Specifically, in the present embodiment, four mounting arms are arranged on the top of the load-bearing frame 1, and the four mounting arms are all arranged horizontally and facing the inside of the frame structure of the load-bearing frame 1. The ends of the mounting arms are welded to the mounting tubes 22. Therefore, in the present embodiment, a total of four mounting tubes 22 are arranged, and four support arms 21 are arranged accordingly. By arranging a plurality of adjustment holes 211 on the support arms 21, different adjustment holes 211 are matched with the positioning holes 221 and locked with the positioning pins 23, the height of the support arms 21 can be adjusted, so that the suspension components have different heights, thereby enabling the device to adapt to rotors of more different sizes.

[0027] Preferably, a channel steel 212 is provided on the top of the support arm 21, and the slot of the channel steel 212 is arranged upward, and the slot of the channel steel 212 forms the installation position. Specifically, in this embodiment, two support arms 21 are a group, forming two groups of support arms 21, and the two sides of the suspension assembly are respectively set on the installation positions of the two groups of support arms 21.

[0028] Preferably, the bracket suspension assembly 3 includes a crossbeam 31 and a longitudinal beam 32, two crossbeams 31 are arranged in parallel, two ends of a plurality of longitudinal beams 32 are respectively connected to the two crossbeams 31, the two crossbeams 31 are both connected to the mounting assembly 2, and the coil bracket 4 is connected to the longitudinal beams 32. Specifically, in this embodiment, the two crossbeams 31 are respectively placed on the mounting positions formed by the top channel steels 212 of the two groups of support arms 21. In this embodiment, at least three longitudinal beams 32 are provided, wherein two coil brackets 4 are respectively connected to the three longitudinal beams 32.

[0029] Preferably, the cross beam 31 is provided with a plurality of connection holes 311 along the length direction of the cross beam 31, and both ends of the longitudinal beam 32 are bolted to the cross beam 31 through the connection holes 311. By bolting the longitudinal beam 32 to different connection holes 311, the position of the longitudinal beam 32 is changed in the transverse direction, so as to adapt to rotors of more sizes and improve the adaptability of the device.

[0030] Preferably, the longitudinal beam 32 is provided with a waist-shaped hole 321, the length direction of the waist-shaped hole 321 is the length direction of the longitudinal beam 32, and the coil support 4 is bolted to the longitudinal beam 32 through the waist-shaped hole 321. Specifically, in this embodiment, the horizontal connecting plate of the coil support 4 is located at the bottom of the longitudinal beam 32 and is connected to the waist-shaped hole 321 on the longitudinal beam 32 through bolts. Through the waist-shaped hole 321 on the longitudinal beam 32, the position of the coil support 4 can be changed in the longitudinal direction to adapt to rotors of different sizes, thereby improving the adaptability of the device.

[0031] Preferably, the cross beam 31 is provided with a lifting lug 312. The lifting lug 312 forms a lifting point on the cross beam 31, which is convenient for lifting the suspension assembly as a whole to the top of the load-bearing frame 1 for mounting by a lifting cable.

[0032] Preferably, a pedal 11 is provided at the top of the load-bearing frame 1. In this embodiment, pedals 11 are provided at the four corners of the top of the frame structure of the load-bearing frame 1, and the pedals 11 facilitate the operator to adjust the height of the support arm 21 at the top of the load-bearing frame 1 or facilitate the operator to align and connect the suspension assembly with the mounting assembly 2.

[0033] Preferably, a ladder 12 is provided on the side of the load-bearing frame 1. In this embodiment, four ladders 12 are provided corresponding to the four pedals 11, and the ladders 12 facilitate the operator to climb onto the pedals 11 of the load-bearing frame 1.

[0034] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Any technician familiar with the field can make many possible changes and modifications to the technical solution of the utility model by using the above-mentioned technical content without departing from the scope of the technical solution of the utility model, or modify it into an equivalent embodiment of equivalent changes. Therefore, any changes, modifications, equivalent changes and modifications made to the above embodiments based on the technology of the utility model without departing from the content of the technical solution of the utility model shall fall within the protection scope of the technical solution of the utility model.

Claims

1. A turbine generator rotor coil embedding device, characterized in that: include: A load-bearing frame (1), wherein the bottom of the load-bearing frame (1) has a space for accommodating a generator rotor, and the top of the load-bearing frame (1) is provided with a plurality of mounting components (2); A suspension assembly, the suspension assembly comprising a coil support (4) and a support suspension assembly (3), the support suspension assembly (3) being connected to a mounting assembly (2) on the load-bearing frame (1), a plurality of the coil supports (4) being arranged on the support suspension assembly (3), two vertical hanging plates (41) being arranged in parallel on the coil support (4), a plurality of pin holes (411) being arranged on the vertical hanging plates (41) along a vertical direction, and the pin holes (411) on the two vertical hanging plates (41) on the same coil support (4) corresponding to each other form a plurality of pairs of pin holes (411), each pair of the pin holes (411) being inserted with an insulating pin (42), the insulating pin (42) being used for placing the coil.

2. The turbine generator rotor coil embedding device according to claim 1, characterized in that: The mounting assembly (2) comprises a mounting tube (22) and a support arm (21); the mounting tube (22) is vertically arranged and fixedly connected to the load-bearing frame (1); the support arm (21) is inserted into the mounting tube (22); a plurality of adjustment holes (211) are vertically arranged on the support arm (21); a positioning hole (221) is provided on the mounting tube (22); a positioning pin (23) is inserted into the positioning hole (221); the positioning pin (23) passes through the adjustment hole (211); a mounting position is provided at the top of the support arm (21); the suspension assembly is connected to the mounting position.

3. The turbine generator rotor coil embedding device according to claim 2, characterized in that: A channel steel (212) is arranged at the top of the support arm (21), the slot of the channel steel (212) is arranged upward, and the slot of the channel steel (212) forms the installation position.

4. The turbine generator rotor coil embedding device according to claim 1, characterized in that: The bracket suspension assembly (3) comprises a cross beam (31) and a longitudinal beam (32), wherein the two cross beams (31) are arranged in parallel, the two ends of a plurality of longitudinal beams (32) are respectively connected to the two cross beams (31), the two cross beams (31) are both connected to the mounting assembly (2), and the coil bracket (4) is connected to the longitudinal beam (32).

5. The turbine generator rotor coil embedding device according to claim 4, characterized in that: A plurality of connection holes (311) are provided on the cross beam (31) along the length direction of the cross beam (31), and both ends of the longitudinal beam (32) are bolt-connected to the cross beam (31) through the connection holes (311).

6. The turbine generator rotor coil embedding device according to claim 5, characterized in that: The longitudinal beam (32) is provided with a waist-shaped hole (321), the length direction of the waist-shaped hole (321) is the length direction of the longitudinal beam (32), and the coil support (4) is bolted to the longitudinal beam (32) via the waist-shaped hole (321).

7. The turbine generator rotor coil embedding device according to claim 4, characterized in that: The crossbeam (31) is provided with a lifting lug (312).

8. The turbine generator rotor coil embedding device according to claim 1, characterized in that: A pedal (11) is provided on the top of the load-bearing frame (1).

9. The turbine generator rotor coil embedding device according to claim 1, characterized in that: A ladder (12) is provided on the side of the load-bearing frame (1).

Images