Sliding assembly for generator shaft penetrating rotor

Abstract

The sliding assembly comprises sliding plate bodies and an anti-skid layer, at least two sliding plate bodies are sequentially arranged in the axis direction of the rotor, the adjacent sliding plate bodies are fixedly connected, the sliding plate bodies are arc-shaped plates, and the concave inner cambered surfaces of the sliding plate bodies are smooth, are mirror surfaces and are used for being in contact with the rotor. And the anti-skid layer is arranged on the convex outer arc surface of the skateboard body. According to the sliding assembly provided by the invention, the sliding assembly is formed by splicing the sliding plate bodies. The anti-skid layer is arranged on the outwards-protruding outer arc face of the sliding plate body, friction between the sliding assembly and the position where a stator is located is increased, movement of the sliding assembly is reduced, the face, making contact with the rotor, of the sliding assembly is a mirror face, friction between the sliding assembly and the rotor is reduced, then friction to the sliding assembly is reduced, and therefore the service life of the sliding assembly for the generator shaft penetrating through the rotor is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical equipment technical field, especially a kind of sliding assembly for generator shaft to wear rotor. BACKGROUND

[0002] For large generator maintenance, generator rotor needs to be extracted from generator stator bore, and the generator rotor that is maintained needs to be inserted into the generator stator bore. When the generator rotor is extracted and inserted each time, protective gaskets and sliding assemblies consistent with the arc of the generator stator bore are padded at the bottom of the generator stator bore in advance to complete the work of extracting and inserting the generator rotor. The sliding plate of the sliding assembly is usually a steel sliding plate.

[0003] The traditional sliding plate is a heavy steel sliding plate, which has large resistance when inserted into the generator stator bore, and the work of extracting and inserting the rotor needs to be completed by multiple people with manpower. The arc-shaped precision of each welded arc-shaped sliding plate is low, and the arc is deformed after welding. At the same time, the height of the arc-shaped weld of each sliding plate is difficult to ensure smooth transition, and there is a height difference, which can easily damage the rotor and the sliding assembly, thereby shortening the service life of the sliding.

[0004] Therefore, how to prolong the service life of the sliding assembly is a technical problem to be solved by those skilled in the art. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims to provide a sliding assembly for generator shaft to wear rotor, which prolongs the service life of the sliding assembly.

[0006] The sliding assembly for generator shaft to wear rotor provided by the present application comprises:

[0007] The sliding plate body is provided with at least two sliding plate bodies in sequence along the rotor axis direction, and adjacent sliding plate bodies are fixedly connected. The sliding plate body is an arc-shaped plate, and the inner arc surface of the sliding plate body is concave and smooth, which is used to contact the rotor.

[0008] The anti-skid layer is arranged on the outer arc surface of the sliding plate body.

[0009] Optionally, in the above-mentioned sliding assembly for generator shaft to wear rotor, the anti-skid layer is provided with a plurality of anti-skid blocks. The anti-skid blocks in the same row are distributed at intervals, and the anti-skid blocks arranged in adjacent two rows are distributed at intervals in staggered positions.

[0010] Optionally, in the above-mentioned sliding assembly for generator shaft to wear rotor, along the rotor axis direction, the inner arc surface of the sliding plate body is an arc-shaped structure with the middle part protruding upward relative to the two ends.

[0011] Optionally, in the generator shaft sliding assembly, the sliding plate body is provided with a lifting hole, and the lifting hole is arranged on each of opposite sides of the sliding plate body in the axial direction.

[0012] Optionally, in the generator shaft sliding assembly, adjacent two sliding plate bodies are connected through a clamping piece.

[0013] Optionally, in the generator shaft sliding assembly, the clamping piece comprises a dovetail-shaped clamping block and a dovetail-shaped clamping groove clamped by the dovetail-shaped clamping block, and the dovetail-shaped clamping block and the dovetail-shaped clamping groove are arranged on opposite sides in the circumferential direction of the sliding plate body.

[0014] Optionally, in the generator shaft sliding assembly, adjacent two sliding plate bodies are welded.

[0015] Optionally, in the generator shaft sliding assembly, a stator protection piece is further arranged, the stator protection piece is an insulating piece, and the stator protection piece is in abutment with an outer arc surface of the sliding plate body.

[0016] Optionally, in the generator shaft sliding assembly, the sliding plate body is a plate structure integrally formed through heat treatment.

[0017] Optionally, in the generator shaft sliding assembly, the sliding plate body is an aluminum alloy plate.

[0018] In the technical scheme, the generator shaft sliding assembly comprises a sliding plate body and an anti-skid layer, at least two sliding plate bodies are sequentially arranged along a rotor axis direction, adjacent sliding plate bodies are fixedly connected, the sliding plate body is an arc plate, and an inner arc surface of the sliding plate body is smooth and mirror-like, and is used for contacting the rotor. The anti-skid layer is arranged on an outer arc surface of the sliding plate body.

[0019] As described above, in the sliding assembly, the sliding assembly is formed by splicing the sliding plate bodies. The outer arc surface of the sliding plate body is provided with the anti-skid layer, the friction between the sliding assembly and a position where the stator is located is increased, the movement of the sliding assembly is reduced, the surface contacting the rotor is mirror-like, the friction with the rotor is reduced, and the friction on the sliding assembly is reduced, so that the service life of the generator shaft sliding assembly is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the accompanying drawings required to be used in the description of the embodiments or the prior art will be briefly introduced as follows. Obviously, the accompanying drawings in the following description only constitute the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of the provided drawings.

[0021] Figure 1 The structural schematic diagram of the slide plate body provided in the embodiments of the present application is shown in the figure.

[0022] Figure 2 The structural schematic diagram of the slide plate body provided in the embodiments of the present application is shown in the figure.

[0023] Among them Figures 1-2 In the figure: 1-inner arc surface, 2-outer arc surface, 3-lifting hole, 4-locking hole, 5-anti-skid layer, 6-slide plate body. DETAILED DESCRIPTION

[0024] The core of the present application is to provide a sliding assembly for generator shaft passing through rotor, which prolongs the service life of the sliding assembly.

[0025] In order to make those skilled in the art better understand the technical scheme of the present application, the present application will be further described in detail in combination with the accompanying drawings and embodiments.

[0026] Please refer to Figure 1 and Figure 2 .

[0027] In one specific embodiment, the sliding assembly for generator shaft passing through rotor provided in the embodiments of the present application comprises a slide plate body 6 and an anti-skid layer 5, at least two slide plate bodies 6 are sequentially arranged along the rotor axis direction, and adjacent slide plate bodies 6 are fixedly connected. The slide plate body 6 is an arc plate, and the inner arc surface 1 of the concave slide plate body 6 is smooth and mirror-like, used for contacting the rotor.

[0028] The anti-skid layer 5 is arranged on the outer arc surface 2 of the slide plate body 6. Specifically, the anti-skid layer 5 can be arranged on the entire outer arc surface 2, for example, the outer arc surface 2 of the slide plate body 6 is treated as a whole.

[0029] In use, the inner arc surface 1 can contact the rotor upward.

[0030] In order to reduce the contact between the sliding assembly and the rotor, preferably, along the rotor axis direction, the inner arc surface 1 of the concave slide plate body 6 is an arc structure with the middle part protruding upward relative to the two ends. At this time, in use, the slide plate body 6 is arranged with the middle part protruding upward.

[0031] In an embodiment, the sliding plate body 6 is provided with lifting holes 3. For example, four lifting holes 3 are arranged on each of the two edges of the sliding plate body 6 in the length direction of the sliding plate. Alternatively, a row of lifting holes 3 is arranged on each of the opposite sides of the sliding plate body 6 along the rotor axis direction. In use, the lifting structure is matched with the corresponding lifting hole 3 as needed, and preferably, at least three lifting holes 3 are arranged on one side of the sliding plate body 6.

[0032] In order to improve the lifting safety of the sliding plate body 6, preferably, all the lifting holes 3 are used in the lifting work of the sliding plate body 6 in use.

[0033] In an embodiment, the opposite sides of the sliding plate body 6 in the axis direction are provided with lifting holes 3. In order to facilitate the connection of adjacent two sliding plate bodies 6, two T-shaped locking holes 4 are arranged on each of the two edges of the sliding plate body 6 in the rotor axis direction, and the locking holes 4 are arranged between the lifting holes 3. The locking holes 4 of the adjacent two sliding plate bodies 6 are locked by fasteners to realize the assembly of the sliding assembly.

[0034] As can be seen from the above description, in the sliding assembly provided in the embodiments of the present application, the sliding assembly is formed by splicing the sliding plate bodies 6. The outer convex outer arc surface 2 of the sliding plate body 6 is provided with an anti-skid layer 5 to increase the friction between the sliding assembly and the position where the stator is located, reduce the movement of the sliding assembly, and the surface in contact with the rotor is a mirror surface to reduce the friction with the rotor, thereby reducing the friction on the sliding assembly. Therefore, the service life of the sliding assembly for the rotor shaft of the generator is prolonged.

[0035] In an embodiment, the anti-skid layer 5 is provided with a plurality of anti-skid blocks. The anti-skid blocks in the same row are spaced apart, and the anti-skid blocks arranged in adjacent two rows are staggered and spaced apart. The spacing distance of the anti-skid blocks in the same row is the distance of one anti-skid block, and the spacing distance is just connected with the adjacent anti-skid block. Figure 1 and Figure 2 As shown in the drawings, the anti-skid blocks are square in shape and are densely staggered. The anti-skid blocks can be obtained by roughening the surface of the sliding plate body 6.

[0036] In an embodiment, the connection position of the adjacent two sliding plate bodies 6 is connected by a clamping piece. Specifically, the clamping piece can be a rectangular block and a rectangular groove matched with the rectangular block. In order to improve the connection stability of the adjacent sliding plate bodies 6, preferably, the clamping piece comprises dovetail-shaped clamping blocks and dovetail-shaped clamping grooves matched with the dovetail-shaped clamping blocks, and the dovetail-shaped clamping blocks and the dovetail-shaped clamping grooves are arranged on the opposite sides of the sliding plate body 6 in the axis direction. At least two dovetail-shaped clamping blocks are arranged on one side of the sliding plate body 6, and at least two dovetail-shaped clamping grooves are arranged on the other side. Along the rotor axis direction, the dovetail-shaped clamping blocks and the dovetail-shaped clamping grooves on the same sliding plate body 6 are one-to-one corresponding.

[0037] Further, the two adjacent slide plate bodies 6 are welded. In the specific assembly, after the two adjacent slide plate bodies 6 are clamped, the clamping position of the two slide plate bodies 6 is welded, so as to improve the connection stability of the sliding assembly and enhance the tensile strength.

[0038] In a specific embodiment, the generator shaft through rotor sliding assembly further comprises a stator protection member, which is an insulating member. Specifically, the stator protection member can be a rubber pad arranged on the outer periphery of the stator. The stator protection member abuts against the outer arc surface 2 of the slide plate body 6. The slide plate body 6 can be a plate structure with the same thickness.

[0039] In a specific embodiment, the slide plate body 6 is a plate member structure formed by heat treatment. The slide plate is heat treated and shaped. The slide plate body 6 is heat treated and shaped as a whole, so as to ensure that the curvature of the slide plate body 6 is consistent front and back.

[0040] On the basis of the above-mentioned solutions, the generator shaft through rotor sliding assembly is an aluminum alloy plate. Specifically, the aluminum alloy plate can be made of aluminum 6061-T6, and the weight of the aluminum alloy plate is one third of that of a steel slide plate.

[0041] The sliding assembly provided in the application has the advantages of light weight, strong tensile strength, smooth inner arc surface 1, and strong friction of the outer arc surface 2. The generator shaft through rotor sliding assembly is an aluminum alloy plate, which is corrosion resistant, oxidation resistant, easy to store, and has a long service life. Therefore, the sliding assembly does not need to be specially treated before being inserted into the generator rotor, and the insertion into the generator stator bore is more time-saving and labor-saving.

[0042] The embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts of each embodiment can be referred to each other.

[0043] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A sliding assembly for a generator shaft passing through a rotor, characterized in that, include: The slide body (6) is arranged in sequence along the rotor axis. At least two slide bodies (6) are arranged in sequence. Adjacent slide bodies (6) are fixedly connected. The slide body (6) is an arc-shaped plate. The inner arc surface (1) of the slide body (6) is smooth and mirror-like, and is used to contact the rotor. Anti-slip layer (5) is provided on the outer arc surface (2) of the skateboard body (6).

2. The sliding assembly for a generator shaft through-rotor according to claim 1, characterized in that, The anti-slip layer (5) is provided with multiple anti-slip blocks, with the anti-slip blocks in the same row spaced apart and the anti-slip blocks in adjacent rows spaced apart and staggered.

3. The sliding assembly for a generator shaft through a rotor according to claim 1, characterized in that, Along the rotor axis, the inner arc surface (1) of the slide body (6) is a concave arc structure with the two ends of the middle part protruding upwards.

4. The sliding assembly for a generator shaft through a rotor according to claim 3, characterized in that, The skateboard body (6) is provided with a lifting hole (3), and the lifting hole (3) is provided on both sides of the skateboard body (6) along the axial direction.

5. The sliding assembly for a generator shaft through a rotor according to claim 1, characterized in that, The two adjacent skateboard bodies (6) are connected by a snap-fit ​​connector.

6. The sliding assembly for a generator shaft through a rotor according to claim 5, characterized in that, The snap-fit ​​component includes a dovetail-shaped snap-fit ​​block and a dovetail-shaped snap-fit ​​groove that snaps into the dovetail-shaped snap-fit ​​block. The dovetail-shaped snap-fit ​​block and the dovetail-shaped snap-fit ​​groove are arranged on opposite sides of the circumferential direction of the slide body (6).

7. The sliding assembly for a generator shaft through-rotor according to claim 6, characterized in that, The two adjacent skateboard bodies (6) are welded together.

8. The sliding assembly for a generator shaft through a rotor according to claim 1, characterized in that, It also includes a stator protection component, which is an insulating component, and the stator protection component abuts against the outer arc surface (2) of the slide body (6).

9. The sliding assembly for a generator shaft through a rotor according to claim 1, characterized in that, The skateboard body (6) is a heat-treated, integrally formed plate structure.

10. The sliding assembly for a generator shaft through-rotor according to any one of claims 1-9, characterized in that, The sliding assembly for the generator shaft passing through the rotor is made of aluminum alloy plate.

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