CN218953498U - Bearing pedestal assembly, bearing assembly and wind generating set - Google Patents

Abstract

The disclosure provides a bearing seat assembly, a bearing assembly and a wind generating set, wherein the bearing seat assembly comprises a base, a first bearing seat and a second bearing seat, and the base is used for being fixed on a cabin of the wind generating set; the first bearing seat comprises a first bottom ring lobe and a first top ring lobe which are detachably connected, the first bottom ring lobe and the first top ring lobe are in end-to-end butt joint to form a ring shape, and the first bottom ring lobe is fixed on the base; the second bearing seat comprises a second bottom ring lobe and a second top ring lobe which are detachably connected, the second bottom ring lobe and the second top ring lobe are in an annular shape in an end-to-end butt joint mode, the second bottom ring lobe is fixed on the base, and the first bearing seat and the second bearing seat are arranged at intervals along the extending direction of the base, so that the manufacturing unit and the transportation unit of the bearing assembly are reduced, and the manufacturing cost and the transportation cost are reduced.

Description

Bearing pedestal assembly, bearing assembly and wind generating set

Technical Field

The disclosure belongs to the technical field of wind power generation, and particularly relates to a bearing seat assembly, a bearing assembly and a wind generating set.

Background

Along with the continuous increase of the capacity of the wind generating set, the height of the corresponding tower and the diameter of the main shaft are also increased. The main shaft is usually supported by a rolling bearing, the increase of the volume of the rolling bearing brings new challenges to manufacture and transportation, and the cost of the rolling bearing is high, so that the technical problem to be solved in the field is urgent.

Disclosure of Invention

The main object of the present disclosure is to provide a bearing housing assembly, a bearing assembly and a wind generating set, so as to reduce the cost of the bearing.

Aiming at the purposes, the present disclosure provides the following technical scheme:

in one aspect of the present disclosure, a bearing housing assembly is provided, the bearing housing assembly including a base for securing to a nacelle of a wind turbine, a first bearing housing, and a second bearing housing; the first bearing seat comprises a first bottom ring valve and a first top ring valve which are detachably connected, the first bottom ring valve and the first top ring valve are in end-to-end butt joint to form a ring shape, and the first bottom ring valve is fixed on the base; the second bearing comprises a second bottom ring valve and a second top ring valve which are detachably connected, the second bottom ring valve and the second top ring valve are in end-to-end butt joint to form a ring shape, the second bottom ring valve is fixed on the base, and the first bearing seat and the second bearing seat are arranged at intervals along the extending direction of the base.

According to an exemplary embodiment of the disclosure, the base is used for being fixed in the engine room, the base comprises a bottom wall, the bottom wall is provided with a bottom wall through hole, and the bottom wall through hole is used for being arranged in an aligned mode with an end through hole of the tower, so that the tower and the engine room can be communicated.

Optionally, the bore center line of the first bearing seat and the bore center line of the second bearing seat coincide.

Specifically, the base also comprises a pair of base side walls arranged at intervals, the bottom ends of the base side walls are respectively fixed on two sides of the bottom wall, and the first bottom ring valve and/or the second bottom ring valve are connected between the pair of base side walls.

Further, the first bottom ring flap is integrally formed with the base; and/or, the second bottom ring flap is integrally formed with the base.

According to another exemplary embodiment of the present disclosure, the first bearing seat is provided with a plurality of bearing unit installation positions for arranging bearing units, and the bearing unit installation positions are arranged at intervals along the circumferential direction of the first bearing seat; and/or the second bearing unit is provided with a plurality of bearing unit mounting positions for arranging bearing units, and the bearing unit mounting positions are arranged at intervals along the circumferential direction of the second bearing unit.

In another aspect of the disclosure, a bearing assembly includes a bearing unit and a bearing seat assembly as described above, where the bearing unit is disposed in a seat hole of the first bearing seat and/or in a seat hole of the second bearing seat, for supporting a rotating shaft, and the plurality of bearing units are disposed at intervals along a circumferential direction of the seat hole.

Optionally, the bearing unit is a sliding bearing, and the rotating shaft is a main shaft.

In another aspect of the present disclosure, a wind power generator set is provided, the wind power generator set comprising a bearing assembly as described above.

Optionally, the wind generating set further comprises a cabin, a main shaft, an impeller and a generator, wherein the bearing seat assembly of the bearing assembly is fixed on the cabin, the main shaft is rotatably supported on the bearing assembly, and two ends of the main shaft are respectively fixed on the hub of the impeller and the rotor of the generator.

The bearing seat assembly, the bearing assembly and the wind generating set provided by the disclosure have the following beneficial effects: the bearing frame subassembly that this disclosure provided includes first bearing frame and the second bearing frame that sets up along the extending direction interval of base, and first bearing frame including can dismantle first bottom ring lamella and first top ring lamella of connection, so reduced bearing assembly's manufacturing unit and transportation unit, reduced manufacturing cost and cost of transportation. Further, by fixing the first bottom ring flap to the base, the structural strength of the base is improved.

Drawings

The foregoing and/or other objects and advantages of the disclosure will become more apparent from the following description of embodiments taken in conjunction with the accompanying drawings in which:

fig. 1 is a block diagram of a middle bearing provided in an exemplary embodiment of the present disclosure.

Fig. 2 is a block diagram of the base, first bottom ring flap, and second bottom ring flap of fig. 1.

Fig. 3 is a block diagram of the first top ring lobe of fig. 1.

Fig. 4 is a block diagram of the second top ring lobe of fig. 1.

Reference numerals illustrate:

1. a base; 2. A first bearing seat;

3. a second bearing seat; 4. A rotating shaft;

11. a bottom wall; 12. A base side wall;

13. a bottom wall through hole; 21. A first bottom ring flap;

22. a first top ring lobe; 23. A first end flange;

24. lifting lugs; 31. A second bottom ring flap;

32. a second top ring lobe; 33. A second end flange;

211. and a bearing unit installation position.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the embodiments of the present disclosure should not be construed as limited to the embodiments set forth herein. The same reference numerals in the drawings denote the same or similar structures, and thus detailed descriptions thereof will be omitted.

The utility model provides a wind generating set, this wind generating set include the pylon, set up in the cabin at pylon top, and connect in the generator and the impeller of cabin, wherein, the impeller includes wheel hub and is fixed in the epaxial at least two blades of wheel hub, wheel hub rotationally sets up in the windward side of cabin, wheel hub is fixed in on the rotor of generator to drive the generator through the rotation of wheel hub and generate electricity. In this embodiment, the generator may be disposed in the nacelle, but not limited to this, and the generator may also be disposed outside the nacelle.

In this embodiment, a rotating shaft 4 is further disposed between the hub and the rotor of the generator, and two ends of the rotating shaft 4 are fixed on the hub and the rotor respectively, so that rotation of the hub can be transmitted to the rotor of the generator for generating electricity, that is, the rotating shaft 4 may be a main shaft in this embodiment.

Referring to fig. 1, further, the main shaft may be supported by a bearing assembly to enable smooth rotation of the main shaft with respect to the nacelle, and the bearing assembly may include a bearing housing assembly and a bearing unit disposed between the bearing housing assembly and the main shaft for supporting the main shaft. As an example, the bearing unit is disposed in the seat hole of the bearing seat to be supported between the bearing seat and the spindle, but not limited thereto.

As an example, the bearing seat assembly may be fixed within the nacelle, but is not limited thereto. The number of the bearing units may be plural, and the plural bearing units are disposed at intervals along the circumferential direction of the spindle, but not limited thereto. Alternatively, the bearing assembly in this embodiment may be a plain bearing assembly.

Referring to fig. 1 to 4, the present disclosure provides a bearing housing assembly comprising a base 1, a first bearing housing 2 and a second bearing housing 3, the base 1 being for fixing on a nacelle of a wind turbine.

The first bearing housing 2 and the second bearing housing 3 are disposed at intervals along the axial direction of the main shaft to be able to stably support the main shaft, i.e., the first bearing housing 2 and the second bearing housing 3 are disposed at intervals along the extending direction of the base. As an example, but not limited to, the center line of the seat hole of the first bearing seat 2 coincides with the center line of the seat hole of the second bearing seat 3. As an example, the first bearing housing 2 may be used as a front bearing housing, and correspondingly, the second bearing housing 3 may be used as a rear bearing housing.

With continued reference to the figures, the first bearing seat 2 comprises a first bottom ring flap 21 and a first top ring flap 22 which are detachably connected, the first bottom ring flap 21 and the first top ring flap 22 are in end-to-end butt joint in a ring shape, and the first bottom ring flap 21 is fixed on the base 1. In this embodiment, the first bearing seat 2 may include a first bottom ring lobe 21 and a first top ring lobe 22 that are formed separately, and in this embodiment, the first bottom ring lobe 21 and the first top ring lobe 22 may be used as a manufacturing unit and a transportation unit, respectively, compared to the existing bearing seat in a whole ring shape, thereby reducing manufacturing cost and transportation cost.

Similarly, the second bearing housing 3 may have the same structure as the first bearing housing 2, in particular, the second bearing housing 3 includes a second bottom ring flap 31 and a second top ring flap 32 which are detachably connected, the second bottom ring flap 31 and the second top ring flap 32 are in an annular shape in an end-to-end joint, and the second bottom ring flap 31 is fixed on the base 1.

In the present embodiment, the structure of the first bearing housing 2 is substantially the same as that of the second bearing housing 3, and therefore, the present disclosure will be described taking the first bearing housing 2 as an example.

Referring to fig. 2, the base 1 is configured to be fixed in a nacelle, where the base 1 includes a bottom wall 11, the bottom wall 11 is provided with a bottom wall through hole 13, and the bottom wall through hole 13 is configured to align with an end through hole of a tower, so that the tower and the nacelle can communicate.

Optionally, the base 1 further includes a pair of base side walls 12 disposed at intervals, and bottom ends of the base side walls 12 are respectively fixed on two sides of the bottom wall 11, for example, but not limited to, the base side walls 12 are respectively disposed on two sides of the bottom wall 11 along the circumferential direction of the spindle, but not limited thereto. The first bottom ring flap 21 is connected between a pair of base side walls 12. In this embodiment, by connecting the first bottom ring segment 21 between the pair of base side walls 12, the structural strength of the pair of base side walls 12 is improved, and the base side walls 12 are prevented from shaking, thereby improving the structural strength of the base 1.

As an example, the first bottom ring segment 21 is integrally formed with the base 1, but not limited to this, and the first bottom ring segment 21 may be fixed to the base 1 by welding or fastening. Referring to fig. 2, the present embodiment is illustrated with the first bottom ring flap 21 being fastened to the base 1 by way of example. Similarly, second bottom ring 31 is integrally formed with base 1, or second bottom ring 31 may be secured to base 1 by welding or fastening.

In this embodiment, the first bottom ring lobe 21 is used as a component of the first bearing seat 2, and the first bottom ring lobe 21 and the first top ring lobe 22 are butted to form the annular first bearing seat 2, so that the installation of the main shaft is facilitated, the main shaft does not need to penetrate into the seat hole of the first bearing seat 2 along the axial direction of the main shaft, but the first top ring lobe 22 can be removed first, the main shaft is radially installed into the first bottom ring lobe 21, and then the first top ring lobe 22 is butted and fixed with the first bottom ring lobe 21, thereby simplifying the installation process of the main shaft and improving the installation efficiency of the main shaft.

Further, the first bottom ring segments 21 are fixed between the base side walls 12, that is, the two circumferential ends of the first bottom ring segments 21 are respectively fixed on the base side walls 12, so that the structural strength of the base 1 is improved, no additional connecting component is needed, that is, the first bottom ring segments 21 are connected to the base side walls 12, the structure of the base 1 is simplified, and the structural strength of the base 1 is improved by avoiding using the additional connecting component, thereby reducing the weight of the bearing seat assembly.

In order to improve the installation efficiency of the bearing assembly, the first bearing housing 2 is provided with a plurality of bearing unit installation sites 211 for installing bearing units, and the bearing unit installation sites 211 are arranged at intervals along the circumferential direction of the first bearing housing 2. As an example, the bearing unit mounting locations 211 are disposed at equal angular intervals along the circumferential direction of the first bearing housing 2, but not limited thereto. As an example, the bearing unit mounting position 211 may be provided with a groove matched with the bearing unit, so that the bearing unit is positioned and mounted conveniently, but not limited thereto, and besides, the bearing unit mounting position 211 may be provided with a boss.

Similarly, the second bearing unit 3 is provided with a plurality of bearing unit mounting locations 211 for mounting the bearing units, and the bearing unit mounting locations 211 are disposed at intervals along the circumferential direction of the second bearing unit 3, which will not be described herein.

To facilitate assembly and interfacing of the first bottom ring flap 21 and the first top ring flap 22, the ends of the first bottom ring flap 21 and the first top ring flap 22 are each provided with a first end flange 23, the first end flange 23 being provided with fastener mounting holes for facilitating fastener attachment. Correspondingly, the end of the second bottom ring flap 31 and the end of the second top ring flap 32 are provided with a second end flange 33, respectively, for interfacing the second bottom ring flap 31 and the second top ring flap 32 by means of fasteners.

In order to facilitate lifting of the first top ring lobe 22, the first top ring lobe 22 is further provided with a pair of lifting lugs 24, and in this embodiment, the lifting lugs 24 are provided in a pair, and the pair of lifting lugs 24 are respectively provided on two circumferential sides of the first top ring lobe 22, so that the first top ring lobe 22 is lifted horizontally, but not limited thereto.

As an example, but not limited to, a pair of lifting lugs 24 are respectively provided near the first end flanges 23.

In this embodiment, the central angles of the first bottom ring lobe 21 and the first top ring lobe 22 are 180 ° respectively, but not limited to this, the central angle of the first bottom ring lobe 21 may be greater than 180 °, for example, but not limited to, the central angle of the first bottom ring lobe 21 may be 240 °, and the central angle of the first top ring lobe 22 corresponding thereto is 120 °. Alternatively, the central angle of the first bottom ring lobe 21 may also be less than 180 °, for example, but not limited to, the central angle of the first bottom ring lobe 21 may be 120 °, corresponding to the central angle 240 ° of the first top ring lobe 22.

It is understood that in the present embodiment, the number of the first bottom ring lobes 21 and the first top ring lobes 22 is not limited to 1, for example, but not limited to, the number of the first bottom ring lobes 21 is 1, the number of the first top ring lobes 22 is 2, and two first top ring lobes 22 are adjacently and fixedly disposed and butt-jointed with the first bottom ring lobes 21 to form a complete ring, which is also within the protection scope of the present disclosure.

In order to further reduce the manufacturing cost of the bearing housing assembly, one of the first bottom ring lobe 21, the first top ring lobe 22, the second bottom ring lobe 31 and the second top ring lobe 32 is provided with lightening holes, which are alternately arranged with the bearing units along the circumferential direction of the bearing housing, but not limited thereto. As an example, the lightening hole may be provided as a rectangular hole or a rectangular hole, but is not limited thereto.

Alternatively, the base 1 may be provided with a lightening hole, for example, but not limited to, a lightening hole provided on the bottom wall 11, and the lightening hole is provided outside the pair of base side walls 12.

The bearing frame subassembly that this disclosure provided includes first bearing frame 2 and second bearing frame 3 that set up along the extending direction interval of base 1, and first bearing frame 2 is including dismantling first bottom ring lamella 21 and first top ring lamella 22 of connection, has so reduced bearing assembly's manufacturing unit and transportation unit, has reduced manufacturing cost and cost of transportation. Further, by fixing the first bottom ring flap 21 to the base 1, the structural strength of the base 1 is improved.

In the description of the present disclosure, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present disclosure and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present disclosure.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present disclosure, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present disclosure, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, and communicatively connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this disclosure will be understood by those of ordinary skill in the art in the specific context.

The described features, structures, or characteristics of the disclosure may be combined in any suitable manner in one or more embodiments. In the above description, numerous specific details are provided to give a thorough understanding of embodiments of the present disclosure. One skilled in the relevant art will recognize, however, that the disclosed aspects may be practiced without one or more of the specific details, or with other methods, components, materials, etc. In other instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring aspects of the disclosure.

Claims (10)

1. A bearing housing assembly, the bearing housing assembly comprising:

the base (1) is used for being fixed on a cabin of the wind generating set;

the first bearing seat (2) comprises a first bottom ring valve (21) and a first top ring valve (22) which are detachably connected, wherein the first bottom ring valve (21) and the first top ring valve (22) are in end-to-end butt joint to form a ring shape, and the first bottom ring valve (21) is fixed on the base (1);

the second bearing seat (3) comprises a second bottom ring lobe (31) and a second top ring lobe (32) which are detachably connected, the second bottom ring lobe (31) and the second top ring lobe (32) are in end-to-end butt joint to form a ring shape, the second bottom ring lobe (31) is fixed on the base seat (1),

the first bearing seat (2) and the second bearing seat (3) are arranged at intervals along the extending direction of the base (1).

2. Bearing housing assembly according to claim 1, wherein the base (1) is intended to be fixed in the nacelle, the base (1) comprising a bottom wall (11), the bottom wall (11) being provided with a bottom wall through hole (13), the bottom wall through hole (13) being intended to be arranged in alignment with an end through hole of a tower so that the tower and the nacelle can communicate.

3. A bearing housing assembly according to claim 1, wherein the centre line of the bore of the first bearing housing (2) and the centre line of the bore of the second bearing housing (3) coincide.

4. Bearing housing assembly according to claim 2, wherein the base (1) further comprises a pair of spaced apart base side walls (12), the base side walls (12) being fastened at their bottom ends to the bottom wall (11) on both sides, respectively, the first bottom ring flap (21) and/or the second bottom ring flap (31) being connected between the pair of base side walls (12).

5. Bearing housing assembly according to claim 1, wherein the first bottom ring flap (21) is integrally formed with the base (1); and/or the number of the groups of groups,

the second bottom ring flap (31) is integrally formed with the base (1).

6. Bearing housing assembly according to claim 1, wherein the first bearing housing (2) is provided with a plurality of bearing unit mounting locations (211) for arranging bearing units, the bearing unit mounting locations (211) being arranged at intervals along the circumference of the first bearing housing (2); and/or the number of the groups of groups,

the second bearing unit (3) is provided with a plurality of bearing unit mounting positions (211) for arranging bearing units, and the bearing unit mounting positions (211) are arranged at intervals along the circumferential direction of the second bearing unit (3).

7. Bearing assembly, characterized in that it comprises bearing units and a bearing block assembly according to any of claims 1-6, said bearing units being arranged in the bores of the first bearing block (2) and/or in the bores of the second bearing block (3) for supporting the rotating shaft (4), said bearing units being a plurality of said bearing units being arranged at intervals along the circumference of the bores.

8. Bearing assembly according to claim 7, wherein the bearing unit is a plain bearing assembly and the spindle (4) is a spindle.

9. A wind power plant, characterized in that it comprises a bearing assembly according to claim 7 or 8.

10. A wind power unit as claimed in claim 9, wherein the wind power unit further comprises a nacelle, a main shaft, an impeller and a generator, the bearing housing assembly of the bearing assembly being fixed to the nacelle, the main shaft being rotatably supported by the bearing assembly, both ends of the main shaft being fixed to the hub of the impeller and the rotor of the generator, respectively.

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