Bearing seat for wind generating set
By introducing adjustment and drive components into the bearing housing, the axial clearance of the bearing body is eliminated, solving the problem of reduced load-bearing capacity caused by clearance changes in traditional designs. This improves the operating accuracy and reliability of wind turbine generators and reduces the risk of mechanical failure.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-28
- Publication Date
- 2026-03-24
AI Technical Summary
Traditional bearing housing designs cannot adjust axial clearance according to wear during use, resulting in reduced bearing load capacity and affecting equipment operating accuracy and reliability.
The bearing housing design incorporates an adjustment component and a drive component. By cooperating the first and second rings in the adjustment component, the axial clearance of the bearing body within the cavity is eliminated, ensuring a tight fit between the bearing and the bearing housing. The limit unit and feedback component are used to achieve uniform force distribution and timely replacement prompts.
It improves the load-bearing capacity of the bearings, reduces the risk of mechanical failure, enhances the operating accuracy and reliability of the wind turbine generator set, reduces noise and vibration, and extends the service life of the equipment.
Smart Images
Figure CN224032708U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to bearing seat technical field especially relates to bearing seat for wind generating set. BACKGROUND
[0002] As a major form of green and clean energy, wind generating set is one of the key components of the bearing system of the wind generating set. Bearings play a supporting, carrying and guiding role in wind generating set, ensuring that the rotor, generator and other moving parts can run smoothly. In the long-term operation of the wind generating set, bearings bear the huge impact from wind and load, especially in high-load, low-speed operation environment, the working conditions of bearings are more demanding. Therefore, to ensure the reliability, durability and good working condition of bearings is crucial for the efficient operation of wind generating set and reducing maintenance costs.
[0003] The traditional bearing seat design is usually fixed, the axial gap of the bearing in the bearing seat is set at the time of manufacturing, which cannot be adjusted according to the wear during use. This design will not have obvious problems in the short term, but as the wind generating set runs for a long time, the bearing bears the huge impact from wind and load, and as the equipment runs for a long time, the axial gap will gradually increase, resulting in reduced bearing carrying capacity and affecting the running accuracy of the equipment. SUMMARY
[0004] The utility model discloses a bearing seat for wind generating set to solve the technical problems in the prior art.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:
[0006] The bearing seat for wind generating set comprises:
[0007] The lower seat is used for supporting the bearing and at least one component of the wind generating set;
[0008] The upper cover is arranged on the top of the lower seat, the lower seat and the upper cover are connected as a whole through bolts, a cavity is arranged between the lower seat and the upper cover, and a bearing body is arranged in the cavity;
[0009] The adjusting assembly is arranged in the cavity and can adjust the axial gap of the bearing body in the cavity;
[0010] The driving assembly is arranged on the upper cover and is used in cooperation with the adjusting assembly to drive at least one component in the adjusting assembly to move;
[0011] The end cover is arranged at one end of the lower seat and the upper cover and can seal and install the adjusting assembly and the bearing body in the cavity.
[0012] As a further scheme of the utility model, the adjusting assembly comprises:
[0013] The first ring is arranged inside the cavity, one end face of the first ring abuts against the end face of the bearing body, the first ring and the inner wall of the cavity are provided with a limiting unit for limiting the radial rotation of the first ring;
[0014] The second ring is arranged inside the cavity, one end face of the second ring abuts against the end face of the end cover, the other end face of the second ring abuts against the other end face of the first ring, and the first ring can abut against the bearing body when the second ring moves.
[0015] As a further scheme of the utility model, the end face of the first ring close to the second ring is uniformly provided with a plurality of first inclined surfaces, and the included angle between each first inclined surface and the end face is 5°, the end face of the second ring close to the first ring is uniformly provided with a plurality of second inclined surfaces, and the included angle between each second inclined surface and the end face is 5°, and the outer surfaces of the first inclined surfaces and the second inclined surfaces abut against each other.
[0016] As a further scheme of the utility model, the limiting unit comprises:
[0017] A plurality of convex blocks are arranged on the circumferential outer surface of the first ring, a plurality of grooves are arranged on the inner wall of the cavity, the grooves are matched with the convex blocks, and the convex blocks are slidingly installed on the inner wall of the grooves.
[0018] As a further scheme of the utility model, the driving assembly comprises:
[0019] An adjusting screw is arranged on the upper cover, the outer surface of the upper cover is provided with a mounting block, a circular hole is arranged in the inside of the mounting block, and the adjusting screw is rotatably installed in the inside of the circular hole.
[0020] A column is arranged in the upper cover, a square hole is arranged in the inside of the upper cover, the column is slidingly inserted into the inside of the square hole, the threaded end of the adjusting screw is threadedly connected with the top end of the column, the column is moved when the adjusting screw rotates, the circumferential outer surface of the second ring is provided with a insertion hole, the bottom end of the column is arranged in the inside of the insertion hole, the bottom end of the column is provided with an inclined angle, the inside of the insertion hole is provided with a chamfer matched with the inclined angle, and the outer surfaces of the inclined angle and the chamfer abut against each other, the inclined angle of the bottom end of the column abuts against the chamfer when the column moves, so that the second ring rotates in the cavity, and a feedback assembly is arranged on the mounting block, which can detect whether the column moves to a preset position and feed back to the operator.
[0021] As a further scheme of the utility model, the feedback assembly comprises:
[0022] A rod body is arranged at the top end of the column body, and a disc is fixedly arranged at the top end of the rod body and penetrates the upper surface of the mounting block, and the circumferential outer surface of the disc is uniformly provided with a plurality of second protrusions;
[0023] A circular ring is arranged at the top end of the adjusting screw, the circumferential outer surface of the circular ring is uniformly provided with a plurality of first protrusions, the outer surface of the second protrusion is in abutment with the first protrusion, and when the adjusting screw rotates, the first protrusion is driven to rotate, so that the first protrusion generates frictional damping through the second protrusion.
[0024] As a further scheme of the utility model, the circular ring is arranged on the outer surface of the adjusting screw close to the mounting block, so that a part of the outer surface of the top of the adjusting screw is exposed and used for frictionless damping movement of the second protrusion.
[0025] The application drives the second ring in the adjusting assembly by the driving assembly to push the first ring, so that the first ring pushes the bearing body to the inner wall of one end of the cavity in the axial direction, and then the axial gap of the bearing body in the cavity is eliminated. By eliminating the axial gap of the bearing body, the close cooperation and collaborative work of the bearing body and the bearing seat can be ensured, mechanical failure caused by gap change or uneven stress can be avoided, the bearing capacity of the bearing body is improved, and the reliability and operation accuracy of the entire wind turbine generator system are improved. BRIEF DESCRIPTION OF DRAWINGS
[0026] Figure 1 The utility model proposes a whole structure schematic view of the bearing seat for the wind turbine generator set;
[0027] Figure 2 The utility model proposes an explosion structure schematic view of the bearing seat for the wind turbine generator set;
[0028] Figure 3 The utility model proposes a whole sectional structure schematic view of the bearing seat for the wind turbine generator set;
[0029] Figure 4 The utility model proposes an internal structure schematic view of the bearing seat for the wind turbine generator set;
[0030] Figure 5 For Figure 4 The local amplification schematic view of A in the middle;
[0031] Figure 6 The utility model proposes a first ring schematic view of the bearing seat for the wind turbine generator set;
[0032] Figure 7 The utility model proposes a column body overhead schematic view of the bearing seat for the wind turbine generator set;
[0033] Figure 8 The utility model provides a column body schematic view for bearing seat of wind turbine generator set;
[0034] Figure 9 The utility model provides a rod body schematic view for bearing seat of wind turbine generator set.
[0035] In the drawing: 1, lower seat; 2, upper cover; 3, end cover; 4, bearing body; 5, mounting block; 6, first ring; 601, lug; 602, recess; 603, first inclined plane; 7, second ring; 701, insertion hole; 702, second inclined plane; 8, column body; 801, bevel; 9, adjusting screw; 901, first protrusion; 10, rod body; 1001, second protrusion. DETAILED DESCRIPTION
[0036] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.
[0037] As shown in Figure 1 and Figure 2 , the utility model discloses a bearing seat for wind turbine generator set, including: the lower seat 1 for supporting at least one component of bearing and wind turbine generator set;Upper cover 2 is arranged at the top of lower seat 1 and is connected with its integral through fixed bolt, and the cavity is equipped between lower seat 1 and upper cover 2, and the inside of cavity is provided with bearing body 4;Adjusting assembly can adjust the axial clearance of bearing body 4 in cavity;Driving assembly for driving at least one component in adjusting assembly movement, it is used in cooperation with adjusting assembly;End cover 3 can be closed adjusting assembly and bearing body 4 and installs in the inside of cavity, and it is arranged at the end of lower seat 1 and upper cover 2 away from bearing body 4.
[0038] As shown in Figure 3 , in the embodiment, adjusting assembly is arranged in the inside of cavity, and adjusting assembly includes: first ring 6, which is arranged in the inside of cavity, one end face of first ring 6 is in abutment with bearing body 4, can extrude the end face of bearing body 4, so that the other end of bearing body 4 is in abutment on the inner wall of one end of cavity, for eliminating the axial clearance of bearing body 4 in cavity, in order to force first ring 6 and make it extrude bearing body 4, so the inside of cavity is provided with second ring 7, one end face of second ring 7 is in abutment with the end face of end cover 3, and the other end face of second ring 7 is in abutment with the other end face of first ring 6, so when second ring 7 moves, it can push first ring 6 and bearing body 4 in abutment, so that first ring 6 makes bearing body 4 in abutment on the inner wall of one end of cavity.
[0039] In order to make second ring 7 can transmit thrust to first ring 6, as Figure 6 and Figure 7As shown, in the embodiment, the first ring 6 is uniformly provided with a plurality of first inclined surfaces 603 near the end face of the second ring 7, and the included angle between each first inclined surface 603 and the end face is 5°, so that the first inclined surface 603 is inclined on the end face of the first ring 6. The second ring 7 is uniformly provided with a plurality of second inclined surfaces 702 near the end face of the first ring 6, and the included angle between each second inclined surface 702 and the end face is 5°, so that the second inclined surface 702 is inclined on the end face of the second ring 7. The outer surfaces of the first inclined surface 603 and the second inclined surface 702 overlap each other. When the driving assembly drives the second ring 7 to rotate on the inner wall of the cavity, the second ring 7 will drive the second inclined surface 702 to slide relative to the first inclined surface 603, so that the overlapping surface of the second inclined surface 702 and the first inclined surface 603 is reduced. Therefore, the second inclined surface 702 will press and push the first inclined surface 603, so that the first ring 6 moves in the direction close to the bearing body 4, and the first ring 6 pushes the bearing body 4 to the inner wall of one end of the cavity in the axial direction, thereby eliminating the axial gap of the bearing body 4 in the cavity. By eliminating the axial gap of the bearing body 4, the close cooperation between the bearing body 4 and the bearing seat can be ensured, mechanical failure caused by gap change or uneven stress can be avoided, the bearing capacity of the bearing body 4 can be improved, and the reliability and operation accuracy of the entire wind turbine system can be improved.
[0040] It should be noted in the above embodiment that the cooperation of the plurality of second inclined surfaces 702 and the first inclined surfaces 603 can make the axial thrust of the second ring 7 on the first ring 6 more uniform, so that the axial thrust of the first ring 6 on the bearing body 4 is also uniform. Uniform force distribution can effectively reduce asymmetric load, thereby reducing noise and vibration generated during operation of the bearing body 4, and improving the working quality of the wind turbine.
[0041] Because the second inclined surface 702 slides relative to the first inclined surface 603, and the second ring 7 rotates in the cavity, the first ring 6 will not rotate in the radial direction inside the cavity. In order to prevent the first ring 6 from rotating, a limiting unit for limiting the radial rotation of the first ring 6 is arranged between the first ring 6 and the inner wall of the cavity. Figure 2 , Figure 3 and Figure 4 As shown, in the embodiment, the limiting unit comprises a plurality of protrusions 601 arranged on the circumferential outer surface of the first ring 6, and a plurality of grooves 602 are arranged on the inner wall of the cavity. The grooves 602 are matched with the protrusions 601, and the protrusions 601 and the inner wall of the grooves 602 are slidingly installed. When the first ring 6 is installed, the protrusions 601 and the grooves 602 are aligned, the first ring 6 is pushed into the cavity along the grooves 602, and the cooperation of the protrusions 601 and the grooves 602 limits the radial rotation of the first ring 6, so that the first ring 6 can only move axially along the direction of the grooves 602.
[0042] In order to drive the second ring 7 to rotate in the cavity, a driving assembly is arranged on the upper cover 2, as shown in Figure 4 and Figure 5 In the embodiment, the driving assembly comprises an adjusting screw 9 arranged on the upper cover 2 and a column 8 arranged in the upper cover 2. The outer surface of the upper cover 2 is provided with a mounting block 5 which is integrally formed with the upper cover 2. A circular hole is formed in the interior of the mounting block 5. The adjusting screw 9 is rotatably arranged in the interior of the circular hole. A hexagonal hole is formed in the top end of the adjusting screw 9. A hexagonal wrench is inserted into the hexagonal hole during use, so as to rotate the adjusting screw 9. A square hole is formed in the interior of the upper cover 2. The column 8 is slidably arranged in the interior of the square hole. The column 8 is square-shaped and matched with the square hole, so that the column 8 can only move up and down along the square hole, as shown in Figure 5 and Figure 9 The threaded end of the adjusting screw 9 is threadedly connected with the top end of the column 8. When the adjusting screw 9 rotates, the column 8 moves up and down.
[0043] In order to drive the second ring 7 to rotate along the radial direction of the second ring 7, as shown in Figure 5 and Figure 7 In the embodiment, a plug hole 701 is formed in the circumferential outer surface of the second ring 7. The bottom end of the column 8 is arranged in the interior of the plug hole 701. An inclined angle 801 is formed in the bottom end of the column 8. A chamfer is formed in the interior of the plug hole 701 and matched with the inclined angle 801. The outer surface of the inclined angle 801 abuts against the chamfer. When the column 8 moves downward and approaches the second ring 7, the inclined angle 801 at the bottom end of the column 8 abuts against the chamfer in the interior of the plug hole 701, so as to drive the second ring 7 to rotate along the radial direction in the cavity. It should be noted that, as shown in the top view of the column 8 in Figure 7 The outer dimension of the column 8 is smaller than the outer dimension of the plug hole 701, i.e. there is a gap between the four sides of the column 8 and the inner wall of the plug hole 701, so that the second ring 7 is allowed to rotate with the gap when rotating in the radial direction. When the axial gap of the bearing body 4 does not need to be adjusted, the inclined angle 801 and the chamfer are always in abutment, so as to ensure that the column 8 and the second ring 7 cannot move at will, and at the same time, ensure that the first ring 6 can always abut against the end surface of the cavity to fix the bearing body 4.
[0044] The axial gap of the bearing body 4 in the bearing seat is caused by the wear between the bearing body 4 and the bearing seat due to the load generated during the operation of the equipment. Therefore, when the axial gap of the bearing body 4 in the cavity reaches a certain size, the bearing body 4 and the bearing seat need to be replaced in time. In order to remind the user in time whether the axial gap of the bearing body 4 in the cavity reaches the replacement condition, a feedback assembly is arranged on the mounting block 5, which can detect whether the column 8 moves to a preset position and feed back to the operator, as shown in Figure 5 , Figure 8 andFigure 9 As shown in the figure, in the embodiment, the feedback assembly comprises: a rod body 10 arranged at the top end of the column body 8, which is fixedly connected with the column body 8; a circular ring arranged at the top end of the adjusting screw rod 9, which is integrally formed with the adjusting screw rod 9; a circular disc fixedly installed at the top end of the rod body 10 and penetrating through the upper surface of the mounting block 5, the circumferential outer surface of the circular disc is uniformly provided with a plurality of second protrusions 1001, and the circumferential outer surface of the circular ring is uniformly provided with a plurality of first protrusions 901; when the adjusting screw rod 9 rotates to drive the column body 8 to move downward, the column body 8 drives the circular disc on the rod body 10 to move downward, and the circular disc drives the second protrusions 1001 to move to contact the first protrusions 901; at this time, the second protrusions 1001 abut against the outer surfaces of the first protrusions 901, and when the adjusting screw rod 9 rotates, the first protrusions 901 are driven to rotate, so that the first protrusions 901 generate frictional damping by moving relative to the second protrusions 1001, and when the frictional damping acts on the adjusting screw rod 9, the user can obviously feel resistance, such as Figure 9 As shown in the figure, the circular ring is arranged on the outer surface of the adjusting screw rod 9 close to the mounting block 5, so that a part of the outer surface of the top of the adjusting screw rod 9 is exposed; when the circular disc starts to drive the second protrusions 1001 to move downward to be close to the first protrusions 901, since the second protrusions 1001 and the first protrusions 901 have not abutted against each other, the movement of this distance has no frictional damping, so the user does not feel obvious resistance when rotating the adjusting screw rod 9; through the above arrangement, when the user adjusts the axial gap of the bearing body 4 in the cavity, the user can be reminded to replace the bearing body 4 and the bearing seat in time when the axial gap reaches the maximum wear value of 90%, so as to avoid damage to the bearing body 4 and the bearing seat and affect the safety of other components.
[0045] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application.
Claims
1. A bearing pedestal for a wind turbine generator unit, characterized in that, The utility model relates to a wind turbine bearing adjusting device, which comprises: a lower seat (1) for supporting a bearing and at least one component of a wind turbine generator set; an upper cover (2) arranged on the top of the lower seat (1), the lower seat (1) and the upper cover (2) being connected as a whole by bolts, a cavity being arranged between the lower seat (1) and the upper cover (2), and a bearing body (4) being arranged in the cavity; an adjusting assembly arranged in the cavity and capable of adjusting the axial gap of the bearing body (4) in the cavity; a driving assembly arranged on the upper cover (2) and used in cooperation with the adjusting assembly to drive at least one component of the adjusting assembly to move; an end cover (3) arranged at one end of the lower seat (1) and the upper cover (2) and capable of sealingly mounting the adjusting assembly and the bearing body (4) in the cavity.
2. The bearing seat for a wind power generator unit according to claim 1, characterized in that, The adjusting assembly comprises: a first ring (6) arranged in the cavity, one end face of the first ring (6) abutting against the bearing body (4) and capable of extruding the end face of the bearing body (4) to eliminate the axial gap of the bearing body (4) in the cavity, and a limiting unit arranged between the first ring (6) and the inner wall of the cavity and capable of limiting the radial rotation of the first ring (6); a second ring (7) arranged in the cavity, one end face of the second ring (7) abutting against the end face of the end cover (3), the other end face of the second ring (7) abutting against the other end face of the first ring (6), and the second ring (7) being capable of pushing the first ring (6) to abut against the bearing body (4) when the second ring (7) moves.
3. The bearing seat for a wind power generator unit according to claim 2, characterized in that, The end face of the first ring (6) close to the second ring (7) is uniformly provided with a plurality of first inclined surfaces (603), and the included angle between each first inclined surface (603) and the end face is 5°; the end face of the second ring (7) close to the first ring (6) is uniformly provided with a plurality of second inclined surfaces (702), and the included angle between each second inclined surface (702) and the end face is 5°; and the outer surfaces of the first inclined surfaces (603) and the second inclined surfaces (702) abut against each other.
4. The bearing seat for a wind power generator unit according to claim 2, characterized in that, The limiting unit comprises: a plurality of protrusions (601) arranged on the circumferential outer surface of the first ring (6), a plurality of grooves (602) being arranged on the inner wall of the cavity and matched with the protrusions (601), and the protrusions (601) being slidingly mounted in the grooves (602).
5. The bearing seat for a wind power generator unit according to claim 3, characterized in that, The driving assembly comprises: an adjusting screw (9) arranged on the upper cover (2), an installation block (5) being arranged on the outer surface of the upper cover (2), a circular hole being arranged in the installation block (5), and the adjusting screw (9) being rotatably arranged in the circular hole. The column (8) is arranged in the upper cover (2), the inside of the upper cover (2) is provided with a square hole, the column (8) is slidingly arranged in the inside of the square hole, the threaded end of the adjusting screw (9) is threadedly connected with the top end of the column (8), when the adjusting screw (9) rotates, the column (8) is driven to move, the circumferential outer surface of the second ring (7) is provided with a insertion hole (701), the bottom end of the column (8) is arranged in the inside of the insertion hole (701), the bottom end of the column (8) is provided with an inclined angle (801), the inside of the insertion hole (701) is provided with a chamfer matched with the inclined angle (801), the inclined angle (801) abuts against the outer surface of the chamfer, when the column (8) moves, the inclined angle (801) at the bottom end of the column (8) abuts against the chamfer, thereby driving the second ring (7) to rotate in the cavity, the mounting block (5) is provided with a feedback assembly, which can detect whether the column (8) moves to a preset position and feedback to the operator.
6. The bearing seat for a wind power generator unit according to claim 5, characterized in that, The feedback assembly comprises: The rod body (10) is arranged at the top end of the column (8), the top end of the rod body (10) is fixedly provided with a circular sheet penetrating through the upper surface of the mounting block (5), the circumferential outer surface of the circular sheet is uniformly provided with a plurality of second protrusions (1001); The circular ring is arranged at the top end of the adjusting screw (9), the circumferential outer surface of the circular ring is uniformly provided with a plurality of first protrusions (901), the outer surface of the second protrusion (1001) abuts against the first protrusion (901), when the adjusting screw (9) rotates, the first protrusion (901) is driven to rotate, so that the first protrusion (901) generates frictional damping through the second protrusion (1001).
7. The bearing seat for a wind power generator unit according to claim 6, characterized in that, The circular ring is arranged at the outer surface of the adjusting screw (9) close to the mounting block (5), so that a part of the outer surface of the top of the adjusting screw (9) is exposed, which is used for the second protrusion (1001) to move without frictional damping.