Adjustable generator rotor interelectrode supporting block

Abstract

The utility model relates to an adjustable generator rotor interelectrode supporting block, which is arranged in a split manner and comprises an upper interelectrode supporting block body and a lower interelectrode supporting block body, and the upper interelectrode supporting block body and the lower interelectrode supporting block body have the same structure and are vertically matched with each other through a connecting piece. The connecting piece can adjust the tensity of the upper interpolar supporting block body and the lower interpolar supporting block body towards the rotor winding. According to the utility model, a split type arrangement mode is adopted, and the two interelectrode supporting block bodies are firstly placed and then supported, so that after the interelectrode supporting block bodies are assembled, the interelectrode supporting block bodies can be effectively clung to rotor windings on two sides, the phenomenon of looseness is avoided, and the falling of the interelectrode supporting block is reduced; the two interelectrode supporting block bodies are tensioned and placed in place through the nuts, the condition that insulation paper is damaged is avoided without knocking, and meanwhile the problem that a rotor winding is damaged is avoided; in the assembling process, the situation that the fast supporting block flies out to hurt staff is avoided, and accidents are reduced.

Description

Technical Field

[0001] The utility model relates to the field of generator rotor component structures, in particular to an adjustable generator rotor inter-pole support block. Background Art

[0002] The rotor of the generator is mainly composed of conductive rotor windings, magnetic iron cores, rotor shaft extensions, guard rings, center rings and fans. The magnetic poles of the generator rotor windings are the components that generate the magnetic field. The speed of the generator rotor during operation is basically above 1500r / min. In order to prevent the rotor windings from being deformed harmfully under the action of inertia during high-speed operation, which may lead to motor failure, a support block structure is set between all rotor inter-pole windings.

[0003] However, the support block structure in the prior art has the following problems: 1. The existing inter-pole support block adopts a nearly 90° bent sheet metal, which is inserted between the two poles of the rotor by knocking. The tightness of each inter-pole support block cannot be effectively controlled, and the support block may fall off, causing the generator to be scrapped; 2. When the existing support block is knocked into the pole, the knocking force is too large, which may easily cause the insulating paper between the support block and the winding to be damaged, and may damage the winding; 3. When it is installed between the poles by knocking, the contact surface with the winding is insufficient and there is a gap, which may easily cause deformation of the winding during later use; 4. When the support block is knocked into the pole, it may sometimes rebound and fly out due to the force, causing injuries to production personnel. Utility Model Content

[0004] (1) Technical issues to be solved

[0005] The utility model aims at the above-mentioned problems in the prior art and provides an adjustable generator rotor inter-pole support block which can be reasonably manufactured and used in order to make up for the deficiencies of the prior art.

[0006] (2) Technical solution

[0007] In order to solve the above technical problems, the utility model provides an adjustable generator rotor interpole support block, which is a split arrangement, including an upper interpole support block body and a lower interpole support block body. The upper interpole support block body and the lower interpole support block body have the same structural arrangement and are vertically matched with each other through a connecting piece. The connecting piece can adjust the tension of the upper interpole support block body and the lower interpole support block body toward the rotor winding respectively.

[0008] Preferably, the connecting member is a stud bolt, and two nuts for use in combination are provided on the connecting member, and the connecting member and the upper inter-pole support block body and the lower inter-pole support block body are gradually locked by using a threaded connection.

[0009] Preferably, the upper inter-pole support block body is provided with an inclined boss for cooperating with the connecting piece, the inclined boss is provided with a threaded cavity, the threaded cavity is provided with an internal thread, and the inclined boss cooperates with the connecting piece.

[0010] Preferably, the bevel boss is arranged at an angle of 45°.

[0011] Preferably, after assembly, the inclined bosses on the upper inter-pole support block body and the lower inter-pole support block body (12) are on the same inclined line with a slope of 45°, and finally the upper inter-pole support block body and the lower inter-pole support block body are formed in a mutually perpendicular state.

[0012] Preferably, insulating paper is installed on the side of the upper inter-pole support block body and the lower inter-pole support block body facing the rotor winding.

[0013] Preferably, a stop washer is sleeved on one side of the upper inter-pole support block body and the lower inter-pole support block body close to the connecting piece, respectively.

[0014] Preferably, during assembly, the stop washer is pressed between the nut and the bevel boss.

[0015] (3) Beneficial effects

[0016] The utility model adopts a split setting mode, and the two inter-pole support block bodies are placed first and then stretched apart, so that after the assembly is completed, they can effectively stick to the rotor windings on both sides without loosening, reducing the possibility of the inter-pole support blocks falling off; the two inter-pole support block bodies are tensioned and placed in place by nuts, and there is no need to knock them and the insulating paper will not be damaged, while the problem of rotor winding damage is avoided; during this assembly process, there will be no situation where the support blocks fly out and injure employees, reducing the occurrence of accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view of an inter-electrode support block in the prior art;

[0018] Figure 2 It is a schematic diagram of the structure after the inter-electrode support block is assembled in the prior art;

[0019] Figure 3 for Figure 2 Schematic diagram from another perspective;

[0020] Figure 4 It is a side view of the utility model after assembly;

[0021] Figure 5 for Figure 4 A front view of the upper inter-pole support block body;

[0022] Figure 6 for Figure 5A side cutaway view of

[0023] Figure 7 This is a schematic diagram of the structure of the utility model assembled on the rotor winding;

[0024] Figure 8 for Figure 7 Schematic diagram from another perspective.

[0025] The accompanying drawings are marked as follows:

[0026] 1-inter-season support block, 11-upper inter-pole support block body, 12-lower inter-pole support block body, 13-inclined boss, 131-threaded cavity, 2-insulating paper, 3-stop washer, 4-connecting piece, 5-nut, 6-rotor winding. DETAILED DESCRIPTION

[0027] Combined with Figure 1-5 The utility model is further illustrated with examples.

[0028] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "vertical", "horizontal", "up", "down", "front", "back", "left", "right", "top", "bottom", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0029] like Figure 1-3 As shown, it is an "old type" inter-pole support block 1 in the prior art. The existing "old type" inter-pole support block uses a piece of sheet metal bent at approximately 90 degrees, which is respectively clamped into the two stages of the rotor by knocking on both sides. Therefore, in this process, on the one hand, the tightness of the inter-pole support block cannot be effectively controlled, resulting in the scrapping of the generator; on the other hand, it is easy to cause the insulation paper to be damaged due to excessive force, and the inter-pole support block may be deformed and fly out during the installation process, causing safety accidents. It is precisely because of the related difficult-to-solve problems in the prior art that this solution proposes a new type of inter-pole support block, which is as follows:

[0030] like Figure 4-5 As shown, the utility model discloses an adjustable inter-pole support block for a generator rotor, wherein the inter-pole support block 1 is a split type, comprising an upper inter-pole support block body 11 and a lower inter-pole support block body 12, wherein the upper inter-pole support block body 11 and the lower inter-pole support block body 12 have the same structure and are vertically matched with each other through a connecting member 4, and the connecting member 4 can adjust the tension of the upper inter-pole support block body 11 and the lower inter-pole support block body 12 toward the rotor winding 6 respectively;

[0031] Specifically, the connecting member 4 is a stud bolt, and two nuts 5 for matching use are provided on the connecting member 4. In order to achieve better matching, the upper inter-pole support block body 11 is provided with an inclined boss 13 for matching the connecting member 4, and the inclined boss 13 is provided with a threaded cavity 131, and the threaded cavity 131 is provided with an internal thread, wherein in order to achieve that the upper inter-pole support block body 11 and the lower inter-pole support block body 12 can finally achieve 90° during assembly, the inclined boss 13 is set at an angle of 45°, and after assembly, the inclined boss 13 on the upper inter-pole support block body 11 and the lower inter-pole support block body 12 are on the same inclined line with a slope of 45°;

[0032] See attached for details Figure 4 , the upper inter-pole support block body 11 and the lower inter-pole support block body 12 are installed with insulating paper 2 on the side facing the rotor winding 6, and the upper inter-pole support block body 11 and the lower inter-pole support block body 12 are respectively sleeved with a stop washer 3 on the side close to the connecting member 4. In order to facilitate the fastening of the stop washer 3, the stop washer 3 is pressed between the nut 5 and the inclined boss 13 during assembly;

[0033] Specifically, the "new" inter-pole support block 1 is disassembled into two pieces of split aluminum plates, namely, an upper inter-pole support block body 11 and a lower inter-pole support block body 12, and they are placed on both sides respectively. The front sides of the upper inter-pole support block body 11 and the lower inter-pole support block body 12 are provided with a 45° inclined boss 13, and a sunken circular hole is provided in the middle of the inclined boss 13, and the sunken circular hole faces inwards to form a threaded cavity;

[0034] When in use, take the upper inter-pole support block body 11 and the lower inter-pole support block body 12 and place them at 90 degrees, and insert the connecting piece (stud bolt) 4 with nuts 5 and stop washers 3 into the two circular holes (threaded cavities) in the middle. After putting them into the rotor winding 6, tighten the nuts 5 on both ends of the stud bolt 4 to squeeze the two inter-pole support blocks in two directions until they are tightly attached to the rotor winding 6. Finally, knock the stop washers 3 flat. The two nuts 5 on the connecting piece (stud bolt) 4 can make the upper inter-pole support block body 11 and the lower inter-pole support block body 12 close to the winding and no longer loosen.

[0035] The inter-pole support block adopts the solution of placing it first and then expanding it, which can effectively stick to the rotor windings on both sides, prevent it from getting loose, and reduce the possibility of the support block falling off; the support block is put into place by nuts instead of being knocked, so there will be no damage to the insulating paper and the rotor winding; there will be no situation where the support block flies out and injures employees.

[0036] The above-mentioned embodiments only express the preferred implementation of the utility model, and the description is relatively specific and detailed, but the utility model is not limited to these embodiments. It should be pointed out that for ordinary technicians in this field. Under the premise of not departing from the purpose of the utility model, any improvement made shall fall within the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. An adjustable generator rotor inter-pole support block, characterized in that: The inter-pole support block (1) is of split type, comprising an upper inter-pole support block body (11) and a lower inter-pole support block body (12); the upper inter-pole support block body (11) and the lower inter-pole support block body (12) have the same structural configuration and are vertically matched with each other through a connecting member (4); the connecting member (4) is capable of adjusting the tension of the upper inter-pole support block body (11) and the lower inter-pole support block body (12) respectively toward the rotor winding (6).

2. The adjustable generator rotor inter-pole support block according to claim 1, characterized in that: The connecting piece (4) is a stud bolt, and two nuts (5) for use together are provided on the connecting piece (4).

3. The adjustable generator rotor inter-pole support block according to claim 2, characterized in that: The upper inter-pole support block body (11) is provided with an inclined boss (13) for matching the connecting piece (4), the inclined boss (13) is provided with a threaded cavity (131), and the threaded cavity (131) is provided with an internal thread.

4. The adjustable generator rotor inter-pole support block according to claim 3, characterized in that: The inclined surface boss (13) is arranged at an inclined angle of 45°.

5. The adjustable generator rotor inter-pole support block according to claim 4, characterized in that: After assembly, the inclined bosses (13) on the upper inter-pole support block body (11) and the lower inter-pole support block body (12) are located on the same inclined line with a slope of 45°.

6. The adjustable generator rotor inter-pole support block according to any one of claims 3 to 5, characterized in that: Insulating paper (2) is installed on the side of the upper inter-pole support block body (11) and the lower inter-pole support block body (12) facing the rotor winding (6).

7. The adjustable generator rotor inter-pole support block according to claim 6, characterized in that: A stop washer (3) is respectively sleeved on one side of the upper inter-pole support block body (11) and the lower inter-pole support block body (12) close to the connecting piece (4).

8. The adjustable generator rotor inter-pole support block according to claim 7, characterized in that: During assembly, the stop washer (3) is pressed between the nut (5) and the inclined boss (13).

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