Large-megawatt butt joint type bearing seat

Abstract

The utility model discloses a large megawatt butt-joint type bearing seat, which belongs to the technical field of bearing seats and comprises a supporting seat and a pressing seat which are attached to each other, arc-shaped grooves are arranged on the attaching surfaces of the supporting seat and the pressing seat, the two arc-shaped grooves jointly form a mounting cavity for mounting a bearing, two opposite sides of the pressing seat form butt-joint parts, and the butt-joint parts are connected with the supporting seat and the pressing seat. The butt joint part is connected with the supporting seat through a first bolt, a limiting groove is formed in one of the two binding faces of the supporting seat and the pressing seat, a limiting block is arranged on the other binding face, the limiting block is slidably connected with the limiting groove, a limiting plate is arranged on the portion, located on the moving path of the limiting block, of one side of the supporting seat, and the limiting plate can abut against the pressing seat. Cover plates are arranged on the two opposite end faces of the supporting seat, and the cover plates are connected with the supporting seat and the pressing seat through second bolts at the same time. The connector is convenient to install, the cover plates are arranged on the two end faces and connected with the lower pressing base and the supporting base at the same time, the connection stability is high, and the use requirement of large megawatt can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing seats, in particular to a large megawatt butt-jointed bearing seat. Background Art

[0002] A wind turbine is a power generation device that converts wind energy into mechanical energy, which drives the blades to rotate and outputs electrical energy. It generally includes a support rod, a bearing seat, a main shaft and blades. The bearing seat is fixedly installed on the top of the support rod, the main shaft is installed in the bearing seat through the bearing, and the blades are installed on the main shaft. The bearing seat is an indispensable main component of the wind turbine, mainly used to support the bearing and control the position of the main shaft. For small wind turbines below 10 megawatts (MW), the load on the bearing seat is relatively small, and its structure is relatively simple. The bearing seat processed by one-piece molding can also meet the assembly accuracy of the bearing. For large wind turbines above 10 MW, the bearing seat is relatively large, and the one-piece molding processing method is relatively complex and difficult. Therefore, for this type of bearing seat, the industry currently uses docking for processing. The docking bearing structure can refer to the publication number CN218178569U, which discloses an anti-overheating self-lubricating wind turbine bearing seat, which includes an arc mounting block and an arc plate. Both ends of the arc plate are fixedly connected with a fixing plate. The tops of the two fixing plates are provided with a stabilizing through hole, and a stabilizing screw is installed in the stabilizing through hole. When installing, the arc plate is placed above the arc mounting block, and then the bottom of the stabilizing screw is screwed to the inside of the top two sides of the arc mounting block. This method can realize the processing of large-size and large-megawatt bearing seats by docking, but it is difficult to ensure the stable connection between the arc mounting block and the arc plate by relying on the stabilizing screw. As the bearing seat is subjected to a large load for a long time, the stabilizing screw is prone to loosening, thereby causing the bearing seat to deform, affecting the stability of the bearing seat, and failing to meet the use requirements of the large-megawatt bearing seat. At the same time, when assembling the arc mounting block and the arc plate, it is necessary to deliberately make the stabilizing screw find the position of the corresponding stabilizing through hole, and the installation process is difficult. Utility Model Content

[0003] The technical problem to be solved by the utility model is that in the prior art, the butt-jointed bearing seat is difficult to install and has poor connection stability. Based on this, the utility model provides a large-megawatt butt-jointed bearing seat which is easy to install and has reliable connection.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a large-megawatt docking type bearing seat, comprising a supporting seat and a lower pressure seat that fit together, the supporting seat and the lower pressure seat having arc grooves on their fitting surfaces, the two arc grooves together forming an installation cavity for installing the bearing, the opposite sides of the lower pressure seat forming a docking portion, the docking portion and the supporting seat being connected by a first bolt, one of the two fitting surfaces of the supporting seat and the lower pressure seat being provided with a limiting groove, the other being provided with a limiting block, the limiting block being slidably connected to the limiting groove, a limiting plate being provided on one side of the supporting seat on the moving path of the limiting block, the limiting plate being able to abut against the lower pressure seat, cover plates being provided on the opposite end surfaces of the supporting seat, the cover plates being connected to the supporting seat and the lower pressure seat by a second bolt at the same time.

[0005] Furthermore, the longitudinal section of the limiting groove is in a convex shape, and the shape of the limiting block is adapted to the limiting groove.

[0006] Furthermore, a through hole is provided on the docking portion, and a threaded hole is provided on the upper surface of the support seat. When the lower pressure seat is in abutment with the limiting plate, the through hole is aligned with the threaded hole, and the tail of the first bolt passes through the through hole and is threadedly connected with the threaded hole.

[0007] Furthermore, a baffle is protrudingly provided on one side of the cover plate away from the limiting plate, the baffle and the cover plate are perpendicular to each other, and the baffle is in contact with a side wall of the docking portion away from the limiting plate.

[0008] Furthermore, a side of the cover plate opposite to the baffle plate is in contact with the limit plate, and an end surface of the cover plate is flush with an outer end surface of the limit plate.

[0009] Furthermore, the outer contour of the cover plate is adapted to the structure after the support seat and the lower pressure seat are connected, and an avoidance hole is opened on the cover plate at a position corresponding to the installation cavity.

[0010] Furthermore, there are multiple first bolts, and the multiple second bolts corresponding to the position of the support seat are arranged in a straight line, and the multiple second bolts corresponding to the position of the lower pressure seat are arranged along the arc groove.

[0011] Furthermore, there are two first bolts on each side of the lower pressing seat, and the two first bolts are distributed along the axial direction of the installation cavity.

[0012] The beneficial effects of the utility model are as follows: according to the large-megawatt docking bearing seat of the utility model, when the lower pressure seat moves relative to the support seat to abut against the limit plate, the installation position of the lower pressure seat is determined, and the first bolt can be quickly installed. At the same time, the lower pressure seat and the support seat are directly connected by the first bolt, and are indirectly connected by the cover plate and the second bolt, which improves the connection stability between the lower pressure seat and the support seat, makes the use more reliable, and meets the use needs of the large-megawatt bearing seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0014] Figure 1 It is a three-dimensional diagram of a large megawatt docking bearing seat of the utility model;

[0015] Figure 2 yes Figure 1 An exploded view of the support seat, the lower pressure seat and the limit plate in the large megawatt docking bearing seat shown;

[0016] Figure 3 yes Figure 1 The front view of the large megawatt docking bearing seat shown;

[0017] Figure 4 yes Figure 1 A top view of the large megawatt docking bearing housing is shown.

[0018] In the figure: 1, support seat, 101, arc groove, 102, installation cavity, 11, threaded hole, 12, limit groove, 13, limit plate, 2, lower pressure seat, 21, docking part, 211, through hole, 22, limit block, 3, cover plate, 31, baffle, 32, avoidance groove, 4, first bolt, 5, second bolt. DETAILED DESCRIPTION

[0019] Now the utility model is described in detail with reference to the accompanying drawings. This figure is a simplified schematic diagram, which only illustrates the basic structure of the utility model in a schematic manner, so it only shows the components related to the utility model.

[0020] See also Figure 1-Figure 4 The utility model provides a large megawatt docking bearing seat, including a support seat 1, a lower pressure seat 2 and a cover plate 3. The lower pressure seat 2 is fixedly installed above the support seat 1, and the upper surface of the support seat 1 and the lower surface of the lower pressure seat 2 are in contact with each other. Arc grooves 101 are provided on the surfaces of the support seat 1 and the lower pressure seat 2 that are in contact with each other. When the support seat 1 and the lower pressure seat 2 are installed in place, the two arc grooves 101 together constitute an installation cavity 102 for installing the bearing. The cover plate 3 has two, and the two cover plates 3 are respectively located at the opposite end surfaces of the support seat 1 (or the lower pressure seat 2), and the cover plate 3 is fixedly installed with the support seat 1 and the lower pressure seat 2 at the same time.

[0021] As a preferred embodiment, the lower pressing seat 2 is roughly in an arched structure, the upper surface of the support seat 1 and the lower surface of the lower pressing seat 2 are both planes, and the arc groove 101 is a semicircular groove. The two opposite sides of the arc groove 101 on the lower pressing seat 2 extend outward to form a docking portion 21, and the docking portion 21 is connected to the support seat 1 by a first bolt 4. Specifically, the tail of the first bolt 4 passes through the docking portion 21 and is threadedly connected to the support seat 1, thereby fixing the lower pressing seat 2 on the support seat 1.

[0022] Furthermore, a through hole 211 is provided on the docking portion 21 in a direction perpendicular to the lower surface of the support seat 1, and a threaded hole 11 is provided on the upper surface of the support seat 1. The tail of the first bolt 4 passes through the through hole 211 and is threadedly connected with the threaded hole 11. In a specific implementation, there are two first bolts 4 on each side of the lower press seat 2, and the two first bolts 4 are distributed along the axial direction of the installation cavity 102 to improve the connection strength between the support seat 1 and the lower press seat 2.

[0023] The support seat 1 and the lower pressing seat 2 can slide relative to each other. Specifically, a limiting groove 12 is provided on the upper surface of the support seat 1, and a limiting block 22 is convexly provided on the lower surface of the docking portion 21. The limiting block 22 cooperates with the limiting groove 12, and the limiting block 22 can slide relative to the limiting groove 12. When the lower pressing seat 2 docks with the support seat 1, the limiting block 22 can be slid into the limiting groove 12 from one side of the support seat 1 relative to the support seat 1, so as to limit and guide the movement of the lower pressing seat 2.

[0024] As a preferred embodiment, the longitudinal section of the limiting groove 12 is a "convex"-shaped structure, and the shape of the limiting block 22 is adapted to the limiting groove 12, so that the limiting block 22 can be embedded in the limiting groove 12 while sliding along the limiting groove 12, thereby preventing the limiting block 22 from easily separating from the limiting groove 12. Of course, in other embodiments, the limiting groove 12 can be provided on the lower surface of the docking portion 21, and in this case, the limiting block 22 is provided on the upper surface of the support seat 1, which can also achieve the above-mentioned effect.

[0025] A limit plate 13 is protruded from one side of the support seat 1, and the limit plate 13 is located on the moving path of the limit block 22. When the limit block 22 slides along the limit groove 12 to one side of the lower pressure seat 2 and abuts against the limit plate 13, the lower pressure seat 2 slides into place. At this time, the through hole 211 is aligned with the threaded hole 11, which is conducive to the quick installation of the first bolt 4.

[0026] The outer contour of the cover plate 3 is adapted to the structure after the support seat 1 and the lower pressure seat 2 are connected. The support seat 1 and the lower pressure seat 2 are clamped between the two cover plates 3. The cover plate 3 and the support seat 1 and the cover plate 3 and the lower pressure seat 2 are fixedly connected by the second bolt 5. In this way, the support seat 1 and the lower pressure seat 2 are fixedly mounted on the cover plate 3 at the same time, further preventing the loosening between the support seat 1 and the lower pressure seat 2. In specific implementation, the tail of the second bolt 5 passes through the cover plate 3 and is threadedly connected with the corresponding support seat 1 and the lower pressure seat 2. There are multiple second bolts 5, and the multiple second bolts 5 corresponding to the position of the support seat 1 can be arranged in a straight line, and the multiple second bolts 5 corresponding to the position of the lower pressure seat 2 can be arranged along the arc groove 101.

[0027] As a preferred embodiment, a baffle 31 is protruded from the side of the cover plate 3 away from the limit plate 13, the baffle 31 and the cover plate 3 are perpendicular to each other, and the baffle 31 is in contact with a side wall of the docking portion 21 away from the limit plate 13. At this time, the lower pressure seat 2 is clamped between the baffle 31 and the limit plate 13 in the sliding direction, so that the lower pressure seat 2 cannot easily slide out from the support seat 1, further ensuring the connection stability between the support seat 1 and the lower pressure seat 2.

[0028] Furthermore, one side of the cover plate 3 relative to the baffle plate 31 is in contact with the limit plate 13, and the end face of the cover plate 3 is flush with the outer end face of the limit plate 13, so that the front end face of the bearing seat is a plane as a whole, and the rear end face is also a plane as a whole, thereby improving the appearance consistency of the bearing seat of the utility model.

[0029] In addition, a avoidance hole 32 is provided on the cover plate 3 at a position corresponding to the installation cavity 102 to facilitate subsequent bearing installation operations.

[0030] The large megawatt docking bearing seat of the utility model, when installing, the lower pressure seat 2 is placed above the support seat 1, and through the matching relationship between the limit groove 12 and the limit block 22, the lower pressure seat 2 is gradually slid from one side of the support seat 1 to the top of the support seat 1, when the lower pressure seat 2 and the limit plate 13 are abutted, the arc grooves 101 on the support seat 1 and the lower pressure seat 2 just match to form a mounting cavity 102 for mounting the bearing, at this time, the lower pressure seat 2 is fixedly mounted on the support seat 1 by the first bolt 4, and then the cover plate 3 is covered on the opposite sides of the support seat 1, and the lower pressure seat 2 and the support seat 1 are fixedly mounted on the cover plate 3 by the second bolt 5, and the installation is completed. In the above installation process, the installation position of the lower pressure seat 2 can be quickly determined, which improves the installation efficiency. At the same time, the lower pressure seat 2 and the support seat 1 are directly connected by the first bolt 4, and indirectly connected by the cover plate 3 and the second bolt 5, the connection stability is strong, the use is more reliable, and the use needs of the large megawatt bearing seat are met.

[0031] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without departing from the scope of the utility model through the above description. The technical scope of this utility model is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A large megawatt docking bearing seat, comprising a support seat and a lower pressure seat that fit each other, arc grooves are provided on the fitting surfaces of the support seat and the lower pressure seat, and the two arc grooves together constitute a mounting cavity for mounting the bearing, and the two opposite sides of the lower pressure seat form a docking portion, and the docking portion is connected to the support seat by a first bolt, characterized in that: Among the two mating surfaces of the support seat and the lower pressure seat, one is provided with a limit groove, and the other is provided with a limit block, the limit block is slidably connected to the limit groove, one side of the support seat is provided with a limit plate on the moving path of the limit block, the limit plate can be abutted against the lower pressure seat, and cover plates are provided on the opposite end surfaces of the support seat, and the cover plates are connected to the support seat and the lower pressure seat at the same time through a second bolt.

2. The large megawatt docking bearing seat according to claim 1, characterized in that: The longitudinal section of the limiting groove is in a convex shape, and the shape of the limiting block is adapted to the limiting groove.

3. The large megawatt docking bearing seat according to claim 1, characterized in that: A through hole is provided on the docking portion, and a threaded hole is provided on the upper surface of the support seat. When the lower pressure seat abuts against the limiting plate, the through hole and the threaded hole are aligned, and the tail of the first bolt passes through the through hole and is threadedly connected with the threaded hole.

4. The large megawatt docking bearing seat according to claim 1, characterized in that: A baffle is protruded on one side of the cover plate away from the limiting plate, the baffle and the cover plate are perpendicular to each other, and the baffle is in contact with a side wall of the docking portion away from the limiting plate.

5. The large megawatt docking bearing seat according to claim 4, characterized in that: The side of the cover plate opposite to the baffle plate is in contact with the limiting plate, and the end surface of the cover plate is flush with the outer end surface of the limiting plate.

6. The large megawatt docking bearing seat according to claim 4 or 5, characterized in that: The outer contour of the cover plate is adapted to the structure after the support seat and the lower pressure seat are connected, and an avoidance hole is opened on the cover plate at a position corresponding to the installation cavity.

7. The large megawatt docking bearing seat according to claim 1, characterized in that: There are multiple first bolts, and the multiple second bolts corresponding to the position of the support seat are arranged in a straight line, and the multiple second bolts corresponding to the position of the lower pressure seat are arranged along the arc groove.

8. The large megawatt docking bearing seat according to claim 1, characterized in that: There are two first bolts on each side of the lower pressing seat, and the two first bolts are distributed along the axial direction of the installation cavity.

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