Rotor bracket for high-power wind driven generator

Abstract

The invention relates to the technical field of generators, in particular to a rotor bracket for a high-power wind driven generator, which is characterized in that a support bearing for supporting a motor rotor is embedded in an accommodating cavity at the end part of a support disc body, and the accommodating cavity does not penetrate through the support disc body, that is, the support disc body can provide a limiting block for the support bearing; an arranged threaded column body is in threaded connection with an auxiliary threaded cavity in the annular groove body, a limiting baffle disc arranged at one end of the threaded column body is used for limiting and blocking an outer ring of the supporting bearing, and the supporting disc body and the limiting baffle disc are used in cooperation to limit the supporting bearing; a stable guarantee is provided for the support of the motor rotor by the support bearing; the supporting disc body is fixedly installed at the outer side end of the machine shell end cover through matched use of the installation ring piece and the installation screw, the lubricating auxiliary assembly is arranged in the supporting disc body, when the supporting bearing needs to be filled and lubricated in the later period, the supporting disc body does not need to be disassembled, and operation is convenient and fast.

Description

Technical Field

[0001] The present invention relates to the technical field of generators, and in particular to a rotor bracket for a high-power wind generator. Background Art

[0002] The function of the motor rotor bracket is to support the rotor through the bearings installed on the end covers at both ends of the motor, ensuring the strength and rigidity of the entire rotor, and at the same time cooperating with the stator air duct to cool the entire machine.

[0003] The bearing used to support the rotor is embedded in the end position of the motor housing, and it relies solely on the bearing for support, and the support stability is insufficient. For example, after long-term use, the bearing used for support may be offset. The existing ones generally provide corresponding protective baffles on the outside of the housing end. However, during inspection and maintenance work, when lubricating oil needs to be added, the outer protective baffle needs to be removed and then lubricating oil is added. Not only is the operation troublesome, but after disassembly and reinstallation, the limiting effect of the protective baffle on the bearing may deviate, which has a corresponding negative impact on the operation of the motor rotor.

[0004] To this end, the present invention proposes a rotor bracket for a high-power wind turbine generator to solve the above-mentioned problem. Summary of the Invention

[0005] The object of the present invention is to provide a rotor bracket for a high-power wind turbine generator to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a rotor bracket for a high-power wind turbine, comprising a support disc and a support bearing, a mounting ring fixedly provided at one end side position of the support disc, and mounting holes equidistantly provided on the mounting ring, the mounting ring is fixed to the outer end portion of the casing end cover by means of provided mounting screws, a circular through groove is provided at the center position of the casing end cover, and mounting thread grooves are equidistantly provided at the outer end portion of the casing end cover, an auxiliary component and a lubrication auxiliary component are provided in the support disc, an accommodating cavity is provided at one end of the support disc, and the support bearing is adapted and embedded in the accommodating cavity.

[0007] Preferably, the auxiliary component includes an annular groove body, an auxiliary threaded cavity, a threaded cylinder, a limit stop plate, a cylindrical through groove, a rotation auxiliary rectangular groove, a confluence groove cavity and an oil guide hole body; the annular groove body is arranged at the cavity mouth position of the accommodating cavity, the auxiliary threaded cavity is arranged in the annular groove body, the threaded cylinder is adapted to be threadedly connected with the auxiliary threaded cavity, and a limit stop plate is fixedly provided at one end of the threaded cylinder, and the disk thickness of the limit stop plate is less than the depth of the annular groove body.

[0008] Preferably, a rotation-assisting rectangular groove is provided at the end of the limit stop plate, a cylindrical through groove is provided in the threaded cylinder along the axial direction, and a confluence groove cavity is provided in the limit stop plate.

[0009] Preferably, the confluence groove cavity and the cylindrical through groove are connected.

[0010] Preferably, oil guide holes are equidistantly provided on the circumferential side wall of the position limiting disc.

[0011] Preferably, the lubrication auxiliary component includes a filling tank body, a connecting tank body, a diversion cavity, a sealing plug, and an auxiliary lifting head; the filling tank body is arranged in the supporting disc body, and one end of the filling tank body extends to the end surface position of the supporting disc body, and the other end of the filling tank body is connected to the connecting tank body, and the other end of the connecting tank body is connected to the diversion cavity.

[0012] Preferably, the filling tank is plugged and sealed by a provided sealing plug, and an auxiliary lifting head is fixedly provided at one end of the sealing plug.

[0013] Preferably, the filling tank is arranged horizontally, that is, the filling tank is parallel to the axis of the support disc, and the filling tank is also connected to one end of the auxiliary threaded cavity.

[0014] Preferably, the communicating trough body is vertically arranged, that is, the communicating trough body is perpendicular to the axis of the supporting disc body.

[0015] Preferably, the diversion cavity is arranged at an angle, and one end of the diversion cavity is connected to the connecting groove body, and the other end of the diversion cavity extends to the end portion in the accommodating cavity.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention designs a rotor bracket for a high-power wind turbine generator, which includes a support disc and a support bearing. A mounting ring is fixedly provided at a side position of one end of the support disc, and mounting holes are equidistantly provided on the mounting ring. The mounting ring is fixed to the outer end of the casing end cover by means of provided mounting screws. A circular through groove is provided at the center position of the casing end cover, and mounting thread grooves are equidistantly provided at the outer end of the casing end cover. Auxiliary components and lubrication auxiliary components are provided in the support disc, and a receiving cavity is provided at one end of the support disc, and the support bearing is adapted and embedded in the receiving cavity. In this solution, the support bearing for supporting the motor rotor is embedded in the receiving cavity at the end of the support disc, and the receiving cavity The body does not penetrate the supporting disc body, that is, the supporting disc body can provide a limit block for the supporting bearing, and the provided threaded cylinder is threadedly connected to the auxiliary threaded cavity in the annular groove body, and the limit block plate provided at one end of the threaded cylinder limits the outer ring of the supporting bearing. The supporting disc body and the limit block plate are used together to limit the supporting bearing, so that the support bearing provides a stable guarantee for the support of the motor rotor; the supporting disc body is installed and fixed to the outer end of the casing end cover by the use of a mounting ring and a mounting screw, and a lubrication auxiliary component is provided in the supporting disc body. When the support bearing needs to be lubricated in the later stage, there is no need to disassemble the supporting disc body, and the operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the right side of the connection structure of the support disc, support bearing and housing end cover of the present invention; Figure 2 This is a schematic diagram of the left side of the connection structure of the support disc, support bearing and housing end cover of the present invention; Figure 3 for Figure 2 A magnified schematic diagram of the structural connection at center A; Figure 4 This is a schematic diagram of the structural connection between the support plate and the lubrication auxiliary component of the present invention; Figure 5 for Figure 4 A magnified schematic diagram of the structural connection at point B in the middle; Figure 6 This is a schematic diagram of the left side of the connection between the threaded cylinder and the limit stop plate structure in the auxiliary component of the present invention; Figure 7 The right side schematic diagram of the connection between the threaded cylinder and the limit stop plate structure in the auxiliary component of the present invention; Figure 8 for Figure 7 Enlarged schematic diagram of the structural connection at point C in the middle.

[0018] In the figure: supporting plate body 1, mounting ring 2, mounting hole 21, mounting screw 22, casing end cover 3, circular through groove 31, mounting threaded groove 32, supporting bearing 4, accommodating cavity 501, annular groove body 502, auxiliary threaded cavity 503, threaded cylinder 504, limiting baffle 505, cylindrical through groove 506, rotation auxiliary rectangular groove 507, confluence groove cavity 508, oil guide hole body 509, filling groove body 601, connecting groove body 602, diversion cavity 603, sealing plug 604, auxiliary lifting head 605. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention are described clearly and completely below. The embodiments of the present invention and all other embodiments obtained by persons of ordinary skill in the art without creative work are within the scope of protection of the present invention.

[0020] Example 1: Please refer to Figures 1-8 A rotor bracket for a high-power wind turbine includes a support disc 1 and a support bearing 4. A mounting ring 2 is fixedly provided at the side position of one end of the support disc 1, and mounting holes 21 are equidistantly provided on the mounting ring 2. The mounting ring 2 is fixed to the outer end of the casing end cover 3 by means of mounting screws 22. A circular through groove 31 is provided at the center position of the casing end cover 3, and mounting thread grooves 32 are equidistantly provided at the outer end of the casing end cover 3. Auxiliary components and lubrication auxiliary components are provided in the support disc 1. An accommodating cavity 501 is provided at one end of the support disc 1, and the support bearing 4 is adapted and embedded in the accommodating cavity 501.

[0021] In this solution, the support bearing 4 used to support the motor rotor is embedded in the accommodating cavity 501 at the end of the support disc body 1. The accommodating cavity 501 does not penetrate the support disc body 1, that is, the support disc body 1 can provide a limit block for the support bearing 4, and the provided threaded cylinder 504 is threadedly connected to the auxiliary threaded cavity 503 in the annular groove body 502, and the limit block plate 505 provided at one end of the threaded cylinder 504 limits the outer ring of the support bearing 4. The support disc body 1 and the limit block plate 505 are used in combination to limit the support bearing 4, so that the support bearing 4 provides a stable guarantee for the support of the motor rotor; the support disc body 1 is installed and fixed to the outer end of the casing end cover 3 by the use of the mounting ring 2 and the mounting screws 22, and a lubrication auxiliary component is provided in the support disc body 1. When the support bearing 4 needs to be lubricated in the later stage, there is no need to disassemble the support disc body 1, which is convenient to operate and has a positive effect on ensuring the support work of the support bearing 4.

[0022] The auxiliary components include an annular groove body 502, an auxiliary threaded cavity 503, a threaded column 504, a limit stop plate 505, a cylindrical through groove 506, a rotation auxiliary rectangular groove 507, a confluence groove cavity 508 and an oil guide hole body 509; the annular groove body 502 is arranged at the cavity mouth of the accommodating cavity 501, the auxiliary threaded cavity 503 is arranged in the annular groove body 502, the threaded column 504 is adapted to be threadedly connected with the auxiliary threaded cavity 503, and a limit stop plate 505 is fixedly provided at one end of the threaded column 504. The thickness of the limiting baffle 505 is less than the depth of the annular groove body 502; a rotation-assisting rectangular groove 507 is provided at the end of the limiting baffle 505, a cylindrical through groove 506 is provided along the axial direction of the threaded cylinder 504, and a confluence groove cavity 508 is provided in the limiting baffle 505; the confluence groove cavity 508 and the cylindrical through groove 506 are connected; oil guide holes 509 are equidistantly provided on the circumferential side wall of the limiting baffle 505; that is, for the installation and use of the support bearing 4, the support bearing 4 is first squeezed and embedded in the support disc. The support bearing 4 is completely inserted into the accommodating cavity 501 on the end of the body 1, that is, the end of the support bearing 4 is flush with the annular groove body 502. At this time, the cavity opening of the guide cavity 603 provided at the inner end of the accommodating cavity 501 is aligned with the position of the ball in the support bearing 4. Then, the threaded cylinder 504 is threadedly connected with the auxiliary threaded cavity 503 until the limit stopper 505 provided at the end of the threaded cylinder 504 contacts the end of the support bearing 4, that is, the limit stopper 505 of the support bearing 4 is in contact with the end of the support bearing 4. The position can be completed, and then the support disc body 1 is installed on the outer end of the casing end cover 3, that is, the mounting ring 2 is fitted with the outer end of the casing end cover 3, and the mounting hole 21 in the mounting ring 2 is aligned with the mounting thread groove 32 on the outer end face of the casing end cover 3, and then the mounting screws 22 are threadedly connected with the mounting thread groove 32 one by one to complete the installation and fixing of the support disc body 1, and then the rotating shaft at the end of the motor rotor is installed in the inner ring of the support bearing 4 to provide a support for the motor rotor.

[0023] In the later use, if it is necessary to add lubricating oil to the support bearing 4 for lubrication, there is no need to disassemble the support disc body 1. The lubrication auxiliary component in this solution includes a filling tank body 601, a connecting tank body 602, a diversion cavity 603, a sealing plug body 604, and an auxiliary lifting head 605; the filling tank body 601 is set in the support disc body 1, and one end of the filling tank body 601 extends to the end surface position of the support disc body 1, the other end of the filling tank body 601 is connected to the connecting tank body 602, and the other end of the connecting tank body 602 is connected to the diversion cavity 603; the filling tank body 601 is connected to the diversion cavity 603 by the sealing The plugging body 604 is plugged and sealed, and an auxiliary lifting head 605 is fixedly provided at one end of the sealing plug 604; the filling trough body 601 is arranged horizontally, that is, the filling trough body 601 is parallel to the axis of the supporting disc body 1, and the filling trough body 601 is also connected with one end cavity opening of the auxiliary threaded cavity 503; the connecting trough body 602 is arranged vertically, that is, the connecting trough body 602 is perpendicular to the axis of the supporting disc body 1; the diversion cavity 603 is arranged inclined, and one end of the diversion cavity 603 is connected with the connecting trough body 602, and the other end of the diversion cavity 603 extends to the end in the accommodating cavity 501.

[0024] First, pull out the sealing plug 604, that is, pinch the auxiliary lifting head 605 with your hand, and then pull it outward until the sealing plug 604 is separated from the filling slot 601. The blockage of the filling slot 601 is released, and lubricating oil can be directly added through the filling slot 601. The added lubricating oil enters the connecting slot 602 through the filling slot 601, and then enters the guide cavity 603, and finally is drained from the end cavity position of the guide cavity 603 to the support bearing 4 to achieve lubrication of the support bearing 4. After the lubricating oil filling work is completed, the sealing plug 604 is inserted into the filling slot 601 to achieve the sealing of the slot of the filling slot 601.

[0025] In order to further improve its lubrication effect, the present invention further provides a cylindrical through groove 506 in the threaded cylinder 504, and a confluence groove cavity 508 in the limit stop plate 505, and the confluence groove cavity 508 is connected with the cylindrical through groove 506. After the threaded cylinder 504 is threadedly connected to the auxiliary threaded cavity 503, one end of the threaded cylinder 504 reaches the bottom end of the auxiliary threaded cavity 503, and the auxiliary threaded cavity 503 is connected with the filling tank body 601, that is, the notch of the cylindrical through groove 506 provided in the threaded cylinder 504 is connected with the filling tank body 601, that is, when the lubricating oil is added from the filling tank body 601, the lubricating oil will also enter from the notch of the cylindrical through groove 506, and then the lubricating oil reaches the limit stop plate 505. In the confluence groove cavity 508 of the disk 505, the lubricating oil finally overflows from the oil guide hole body 509 at the bottom position of the circumferential side wall of the limiting baffle 505. The lubricating oil overflowing from the oil guide hole body 509 provides a corresponding lubrication effect for the other end of the support bearing 4, which has a positive effect on further improving its lubrication effect; the threaded cylinder 504 and the limiting baffle 505 provided therein can be used in conjunction with the auxiliary threaded cavity 503 in the annular groove body 502 to provide a limiting effect on the end of the support bearing 4, which has an auxiliary effect on the supporting stability of the support bearing 4; on the other hand, it can also be used in conjunction with the lubrication auxiliary component, which has a corresponding positive effect on further improving the lubrication work of the support bearing 4.

[0026] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A rotor bracket for a high-power wind turbine, characterized by: The invention comprises a support disc (1) and a support bearing (4), wherein a mounting ring (2) is fixedly provided at a side position of one end of the support disc (1), and mounting holes (21) are equidistantly provided on the mounting ring (2), and the mounting ring (2) is fixed to the outer end of the housing end cover (3) by means of mounting screws (22), a circular through groove (31) is provided at the center position of the housing end cover (3), and mounting thread grooves (32) are equidistantly provided at the outer end of the housing end cover (3), an auxiliary component and a lubrication auxiliary component are provided in the support disc (1), and a receiving cavity (501) is provided at one end of the support disc (1), and the support bearing (4) is adapted and embedded in the receiving cavity (501).

2. The rotor support for a high-power wind turbine according to claim 1, characterized in that: The auxiliary component comprises an annular groove body (502), an auxiliary threaded cavity (503), a threaded column (504), a limit stop disc (505), a cylindrical through groove (506), a rotation auxiliary rectangular groove (507), a confluence groove cavity (508) and an oil guide hole body (509); the annular groove body (502) is arranged at the cavity mouth position of the accommodating cavity (501), the auxiliary threaded cavity (503) is arranged in the annular groove body (502), the threaded column (504) and the auxiliary threaded cavity (503) are threadedly connected in a matching manner, and a limit stop disc (505) is fixedly arranged at one end of the threaded column (504), and the disc body thickness of the limit stop disc (505) is less than the depth of the annular groove body (502).

3. The rotor support for a high-power wind turbine according to claim 2, characterized in that: A rotation-assisting rectangular groove (507) is provided at the end of the limit stopper (505), a cylindrical through groove (506) is provided in the threaded column (504) along the axial direction, and a confluence groove cavity (508) is provided in the limit stopper (505).

4. The rotor support for a high-power wind turbine according to claim 2, characterized in that: The confluence groove cavity (508) and the cylindrical through groove (506) are connected.

5. The rotor support for a high-power wind turbine according to claim 2, characterized in that: Oil guide holes (509) are equidistantly arranged on the circumferential side wall of the position limiting disc (505).

6. The rotor support for a high-power wind turbine according to claim 1, characterized in that: The lubrication auxiliary component comprises a filling tank body (601), a connecting tank body (602), a diversion cavity (603), a sealing plug (604), and an auxiliary lifting head (605); the filling tank body (601) is arranged in the support disc body (1), and one end of the filling tank body (601) extends to the end surface position of the support disc body (1), the other end of the filling tank body (601) is connected to the connecting tank body (602), and the other end of the connecting tank body (602) is connected to the diversion cavity (603).

7. The rotor support for a high-power wind turbine according to claim 6, characterized in that: The filling tank (601) is plugged and sealed by a provided sealing plug (604), and an auxiliary lifting head (605) is fixedly provided at one end of the sealing plug (604).

8. The rotor support for a high-power wind turbine according to claim 6, characterized in that: The filling tank (601) is arranged horizontally, that is, the filling tank (601) is parallel to the axis of the support disc (1), and the filling tank (601) is also connected to one end of the auxiliary threaded cavity (503).

9. The rotor support for a high-power wind turbine according to claim 6, characterized in that: The connecting trough body (602) is arranged vertically, that is, the connecting trough body (602) is perpendicular to the axis of the supporting disc body (1).

10. The rotor support for a high-power wind turbine according to claim 6, characterized in that: The diversion cavity (603) is arranged to be inclined, and one end of the diversion cavity (603) is arranged to be in communication with the communication groove (602), and the other end of the diversion cavity (603) extends to the end portion in the accommodating cavity (501).

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