Generator collecting ring installation equipment

Abstract

The utility model discloses a generator collector ring installation device, which comprises a slip ring, the slip ring comprises an annular body, an annular flange arranged at one end of the annular body and an annular concave edge arranged at the other end of the annular body, the annular flange is used for being contacted with a collector ring of a generator, and the annular concave edge is used for being contacted with the collector ring of the generator. The outer diameter of the annular flange is larger than the inner diameter of the collecting ring, and a hole for a stator shaft to penetrate through is formed in the middle of the annular concave edge. According to the utility model, the slip ring abuts against the collector ring along the circumferential direction, the slip ring slides along the guide rod to push the hoisted collector ring by using the guide rod installed on the generator, and the collector ring is uniformly stressed and stably moves to a designated position, so that the direction of the collector ring in a suspended state can be kept stable; according to the equipment, the problem that heavy parts are difficult to reach designated positions for fan maintenance work is solved, the assembly efficiency is improved, the labor cost is reduced, the operation safety is improved, and the assembly precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of generators, in particular to a generator slip ring installation device. Background Art

[0002] The installation of the generator's slip ring needs to be installed from the rear of the nacelle to the generator's rear bearing. Due to the narrow space between the rear of the nacelle and the generator's rear shaft on some generators, and the weight limit and space restrictions of the slip ring, it cannot be safely transported by manpower. The replaced component needs to be lifted and pushed onto the generator shaft to reach the designated position. However, due to the relatively narrow space at the rear of the generator nacelle, there are not enough reliable lifting points. Therefore, it is impossible to use the existing lifting points to lift and transport heavy components, resulting in great installation difficulties and high risks for operators. It is impossible to manually push the slip ring to the indicated position of the generator bearing's stuck point. The utility model proposes a new solution to the above problems. Utility Model Content

[0003] In order to overcome at least one of the above-mentioned shortcomings, the present invention provides a generator slip ring installation device. The purpose of the present invention can be achieved by adopting the following technical solutions:

[0004] The utility model provides a generator collector ring installation device, comprising a slip ring, wherein the slip ring comprises an annular body, an annular flange arranged at one end of the annular body, and an annular recessed edge arranged at the other end of the annular body, wherein the annular flange is used to contact the collector ring of the generator, and the outer diameter of the annular flange is larger than the inner diameter of the collector ring, and the middle part of the annular recessed edge forms a hole for the stator shaft to pass through.

[0005] In one embodiment, the generator slip ring installation device further includes at least two guide rods arranged in the same direction, one end of the guide rod is used to connect to the stator shaft of the generator, and a through hole adapted to the guide rod is provided on the annular recess.

[0006] In one embodiment, the guide rods are parallel to each other and evenly distributed along the circumferential direction on the stator shaft, and the number of the guide rods is two, three, four, or other integers.

[0007] In one possible implementation manner, a relief cavity for accommodating a portion of the stator shaft is formed inside the slip ring. When the collector ring moves to a specified position, the stator shaft passes through the slip ring.

[0008] In one embodiment, the outer diameter of the annular flange is larger than the outer diameter of the annular body, and the inner diameter of the annular recess is smaller than the inner diameter of the annular body.

[0009] In one embodiment, the end surface of the annular flange facing away from the annular body is parallel to the end surface of the annular recess facing away from the annular body.

[0010] In one possible implementation manner, a flexible pad is provided on the end surface of the annular flange facing away from the annular body, and the slip ring abuts against the collector ring via the flexible pad.

[0011] In one embodiment, the guide rod is provided with a thread, a nut is threadedly connected to the guide rod, and the nut rotates along the guide rod to drive the slip ring to move axially along the guide rod.

[0012] In one possible implementation manner, the generator slip ring installation device further includes a bracket, the bracket is fixedly mounted on the generator ventilation duct, and the bracket is used to install a lifting device.

[0013] In one embodiment, the support comprises:

[0014] a first rack, the first rack being arranged along a first direction and being used for connecting to a ventilation duct of a generator;

[0015] a second rack rod, the second rack rod being arranged along a second direction and being used for connecting with the hoisting equipment;

[0016] The first direction is different from the second direction.

[0017] The beneficial technical effects of the present invention are as follows: According to the contents of the present invention, the generator collector ring installation device is circumferentially abutted against the collector ring through the slip ring, and the guide rod installed on the generator is used to make the slip ring slide along the guide rod to push the hoisted collector ring. The collector ring is evenly stressed and moves smoothly to the specified position, and the direction of the collector ring in a suspended state can be kept stable. The device solves the problem that heavy parts are difficult to reach the specified position for wind turbine maintenance work, improves assembly efficiency, reduces labor costs, improves operation safety, can make the assembly gap more precise, and improves assembly accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In the accompanying drawings, the following are given by way of example and not limitation:

[0019] Figure 1 Shows a schematic diagram of the overall structure;

[0020] Figure 2 Shows a schematic structural diagram of the slip ring at one angle;

[0021] Figure 3 Shows the overall structural diagram of the slip ring from another angle;

[0022] Figure 4Shows the overall structural diagram of the slip ring from another angle;

[0023] Figure 5 A cross-sectional view of the structure of the slip ring is shown;

[0024] Figure 6 Shows a schematic structural diagram of the nut and the bracket;

[0025] Figure 7 Shows a schematic structural diagram of the bracket at one angle;

[0026] Figure 8 Shows a structural schematic diagram of the bracket at another angle;

[0027] Figure 9 Shows a structural schematic diagram of the bracket at another angle;

[0028] Figure 10 A structural schematic diagram of the bracket at another angle is shown.

[0029] In the picture:

[0030] 1. Slip ring; 2. Guide rod; 3. Nut; 4. Bracket;

[0031] 11. annular body; 12. annular flange; 13. annular recess; 14. hole; 15. through hole; 41. first frame rod; 42. second frame rod; 43. connecting rib;

[0032] 411, fixing hole; 421, lifting hole. DETAILED DESCRIPTION

[0033] In the detailed disclosure below, these embodiments are fully described with reference to the accompanying drawings. In order to make the technical solutions of the present invention more clear and specific to those skilled in the art, the implementation methods described below are not limited to these. The present invention is further described in detail below in combination with the embodiments and the accompanying drawings.

[0034] In this utility model, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "plurality" refers to two or more, unless expressly limited otherwise. Terms such as "installed," "connected," "connected," and "fixed" should be interpreted broadly. For example, "connected" can mean fixed, removable, or integral; "connected" can mean directly or indirectly through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0035] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by terms such as "up", "down", "left", "right", "front" and "back" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0036] The utility model provides a generator collector ring installation device, such as Figures 1-6 The generator collector ring installation device includes a slip ring 1, which includes an annular body 11, an annular flange 12 arranged at one end of the annular body 11, and an annular recess 13 arranged at the other end of the annular body 11. The annular flange 12 is used to contact the collector ring of the generator, and the outer diameter of the annular flange 12 is larger than the inner diameter of the collector ring. A hole 14 for the stator shaft to pass through is formed in the middle part of the annular recess 13.

[0037] The generator collector ring installation device is connected to the collector ring through the slip ring 1, and the annular flange 12 of the slip ring 1 is circumferentially abutted against the collector ring. The collector ring is evenly forced to move to the specified position under the push of the slip ring 1, and the stator shaft of the generator gradually enters the inner side of the annular part and passes through the hole 14. The guide rod 2 installed on the generator can also be used to slide the slip ring 1 along the guide rod 2 to limit the moving direction of the slip ring 1. The slip ring 1 pushes the hoisted collector ring to move smoothly to the specified position in the specified direction, and can keep the direction of the collector ring in a suspended state stable. The device solves the problem that heavy parts are difficult to reach the specified position for wind turbine maintenance work, improves assembly efficiency, reduces labor costs, improves operation safety, can make the assembly gap more precise, and improves assembly accuracy.

[0038] In one possible implementation, Figures 1-6 As shown, the generator slip ring installation device also includes at least two guide rods 2 arranged in the same direction, one end of the guide rod 2 is used to connect to the stator shaft of the generator, and a through hole 15 adapted to the guide rod 2 is opened on the annular recess 13.

[0039] Through at least two guide rods 2 arranged in the same direction, that is, the guide rods 2 are along the axial direction of the stator shaft, the first ends of the guide rods 2 are connected to the stator shaft, and the second ends of the guide rods 2 are in a suspended state.

[0040] During specific assembly, when the collector ring moves to the specified position, several guide rods 2 are located on the inner side of the collector ring and have no effect on the collector ring. The through hole 15 of the slip ring 1 is aligned with the second end of the guide rod 2 so that the guide rod 2 passes through the through hole 15, keeping the slip ring 1 in a vertical state. The slip ring 1 is movably connected to the guide rod 2, and the slide rod slides along the guide rod 2 to push the collector ring to move to the specified position along the axial direction of the stator shaft.

[0041] The inner diameter of the through hole 15 is slightly larger than the outer diameter of the guide rod 2 , and there is a small gap between the through hole 15 and the guide rod 2 so that when the guide rod 2 passes through the slip ring 1 , the slip ring 1 remains approximately vertical under the restriction of the guide rod 2 .

[0042] The plurality of guide rods 2 are parallel and evenly distributed on the stator shaft along the circumferential direction. The number of the guide rods 2 is two, three, four or other integers.

[0043] There may be two guide rods 2 , and the two guide rods 2 may be arranged oppositely on both sides of the axis of the stator shaft.

[0044] There may be three guide rods 2 , and two guide rods 2 may be evenly arranged along the circumferential direction on the outer peripheral side of the axis of the stator shaft.

[0045] The number of guide rods 2 may be adapted to the number of holes on the stator shaft, and a plurality of guide rods 2 may be arranged along the axis of the stator shaft.

[0046] In one possible implementation, Figure 1-Figure 5 As shown, a avoidance cavity for accommodating part of the stator shaft is formed inside the slip ring 1. When the collector ring moves to a specified position, the stator shaft passes through the slip ring 1.

[0047] It can be understood that the annular flange 12 of the slip ring 1 is used to abut against the collector ring. When the collector ring reaches the specified position, part of the stator shaft passes through the inner cavity of the collector ring. In view of this, the annular body 11 of the slip ring 1 needs to extend axially in the direction away from the stator shaft so that when the collector ring reaches the specified position, the slip ring 1 has no contact with the stator shaft, that is, an avoidance cavity for accommodating part of the stator shaft is formed inside the slip ring 1.

[0048] In one possible implementation, Figure 1-Figure 5 As shown, the outer diameter of the annular flange 12 is larger than the outer diameter of the annular body 11 , and the inner diameter of the annular recess 13 is smaller than the inner diameter of the annular body 11 .

[0049] It is understandable that the outer diameter of the annular flange 12 is greater than the outer diameter of the annular body 11. The annular flange 12 is used to abut against the slip ring, which can increase the contact area with the slip ring so that the slip ring is evenly stressed and the movement process is smoother.

[0050] It can be understood that the inner diameter of the annular recess 13 is smaller than the inner diameter of the annular body 11 , and the through hole 15 is axially opened on the annular recess 13 .

[0051] In one possible implementation, Figure 5 As shown, the end surface of the annular flange 12 facing away from the annular body 11 is parallel to the end surface of the annular recess 13 facing away from the annular body 11 .

[0052] The surface of the annular flange 12 that contacts the collector ring is a flat and smooth surface, so that the annular flange 12 can fully contact the collector ring and receive force evenly.

[0053] The side of the annular recess 13 facing away from the collector ring is a flat and smooth surface, so as to apply force to the annular flange 12 to enable the slip ring 1 to move smoothly.

[0054] Furthermore, the two opposite end faces of the slip ring 1 are preferably parallel to each other, so that a force is applied to the annular flange 12 to enable the slip ring 1 to push the collector ring to move smoothly.

[0055] In one embodiment, a flexible pad is provided on the end surface of the annular flange 12 facing away from the annular body 11 , and the slip ring 1 abuts against the collector ring via the flexible pad.

[0056] It is understandable that a flexible pad can also be provided on the end face of the annular flange 12 facing away from the annular body 11, that is, a flexible pad is laid on the end face of the annular flange 12 facing the collector ring. The flexible pad is elastic and can increase the contact area and friction between the slip ring 1 and the collector ring, so that the collector ring is subjected to more uniform force and the movement process is smoother.

[0057] The flexible pad may be made of rubber material, sponge material, etc.

[0058] In one possible implementation, Figure 1 As shown, the guide rod 2 is provided with a thread, and a nut 3 is threadedly connected to the guide rod 2. The nut 3 rotates along the guide rod 2 to drive the slip ring 1 to move axially along the guide rod 2.

[0059] Through the structure of the screw and the nut 3, the nut 3 can be rotated to push the slip ring 1 to slide along the screw, so that the collector ring is evenly forced into the specified position to ensure the accuracy of the collector ring installation.

[0060] During specific implementation, the screw hole of the generator rear bearing can be used as the fixing point of the guide rod 2.

[0061] In one possible implementation, Figure 7-10 The generator collector ring installation device also includes a bracket 4, which is fixedly installed on the generator ventilation duct and is used to install the lifting equipment.

[0062] It is understandable that the assembly of slip rings is limited by the narrow space and heavy weight of the components, and manual handling of the components is neither safe nor feasible.

[0063] This embodiment utilizes the generator ventilation duct as a support point by installing a bracket 4 on it. Lifting equipment, such as a hoist, can be mounted on the bracket 4 to lift and move the slip ring, effectively eliminating the time-consuming and labor-intensive process of lifting the slip ring. Once the slip ring is raised to the desired height, the slip ring is secured with the slip ring 1 and the nut 3 is rotated to evenly apply force to the slip ring and push it into the desired position, ensuring the required precision of the slip ring installation.

[0064] In one possible implementation, Figure 7-10 The bracket 4 includes a first rack rod 41 and a second rack rod 42. The first rack rod 41 is set along a first direction for connecting to the generator ventilation duct, and the second rack rod 42 is set along a second direction for connecting to the lifting equipment. The first direction is different from the second direction.

[0065] It can be understood that the bracket 4 includes a first rack rod 41 in a first direction and a second rack rod 42 in a second direction. The first direction is different from the second direction. The first rack rod 41 is used to be fixed on the generator ventilation duct, and the second rack rod 42 is used to be connected to the lifting equipment.

[0066] The first direction and the second direction may be perpendicular to each other.

[0067] The first frame rod 41 and the second frame rod 42 can be welded, and a connecting rib 43 is welded between the first frame rod 41 and the second frame rod 42 to enhance the structural stability of the bracket 4 .

[0068] A fixing hole 411 is provided on the first rack rod 41 for easy fixed connection with the ventilation duct.

[0069] The second rack 42 is provided with a hoisting hole 421 for facilitating installation of hoisting equipment.

[0070] The first rack bar 41 and the second rack bar 42 can be made of channel steel, H-shaped steel, L-shaped steel or other shapes or materials.

[0071] Throughout this specification, terms such as "one embodiment," "some embodiments," and "specific embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0072] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

[0073] In view of the above detailed description, these and other changes can be made to the embodiments. This written description, including the best mode examples, discloses the present invention. The scope of the patent obtained by the present invention is defined by the claims, which are not limited by the present disclosure. The scope of protection of the present invention is not limited thereto. Any person skilled in the art can make equivalent substitutions or changes based on the technical solutions and concepts of the present invention within the scope disclosed by the present invention, and they are all within the scope of protection of the present invention.

Claims

1. A generator slip ring installation device, characterized in that: The slip ring (1) comprises an annular body (11), an annular flange (12) arranged at one end of the annular body (11), and an annular recess (13) arranged at the other end of the annular body (11); the annular flange (12) is used to contact the collector ring of the generator, and the outer diameter of the annular flange (12) is larger than the inner diameter of the collector ring; the middle part of the annular recess (13) forms a hole (14) for the stator shaft to pass through.

2. The generator slip ring installation device according to claim 1, characterized in that: The generator collector ring installation device further comprises at least two guide rods (2) arranged in the same direction, one end of the guide rod (2) being used for connecting to the stator shaft of the generator, and a through hole (15) adapted to the guide rod (2) is provided on the annular recess (13).

3. The generator slip ring installation device according to claim 2, characterized in that: The guide rods (2) are parallel to each other and are evenly distributed on the stator shaft along the circumferential direction. The number of the guide rods (2) is two, three, four or other integers.

4. The generator slip ring installation device according to claim 1, characterized in that: An escape cavity for accommodating a portion of the stator shaft is formed inside the slip ring (1); when the collector ring moves to a specified position, the stator shaft passes through the slip ring (1).

5. The generator slip ring installation device according to claim 1, characterized in that: The outer diameter of the annular flange (12) is larger than the outer diameter of the annular body (11), and the inner diameter of the annular recess (13) is smaller than the inner diameter of the annular body (11).

6. The generator slip ring installation device according to claim 5, characterized in that: The end surface of the annular flange (12) facing away from the annular body (11) is parallel to the end surface of the annular recess (13) facing away from the annular body (11).

7. The generator slip ring installation device according to claim 1, characterized in that: The end surface of the annular flange (12) facing away from the annular body (11) is provided with a flexible pad, and the slip ring (1) is in contact with the collector ring via the flexible pad.

8. The generator slip ring installation device according to claim 2, characterized in that: The guide rod (2) is provided with a thread, and a nut (3) is threadedly connected to the guide rod (2). The nut (3) rotates along the guide rod (2) to drive the slip ring (1) to move axially along the guide rod (2).

9. The generator slip ring installation device according to any one of claims 1 to 8, characterized in that: The generator collector ring installation device further comprises a bracket (4), the bracket (4) being fixedly mounted on the generator ventilation duct, and the bracket (4) being used for installing a hoisting device.

10. The generator slip ring installation device according to claim 9, characterized in that: The support (4) comprises: A first rack (41), the first rack (41) being arranged along a first direction and being used for connecting to a ventilation duct of a generator; a second rack (42), the second rack (42) being arranged along a second direction and being used for connecting with the hoisting equipment; The first direction is different from the second direction.

Images