A support clamp for a wind power hub bearing seat is convenient to hoist

Abstract

The utility model relates to wind power hub technical field, especially a kind of wind power hub bearing seat support clamp of hoisting, for supporting bearing seat, the bearing seat is equipped with matching hole and multiple mounting holes, matching hole penetrates bearing seat wall body, the axis of mounting hole and the axis of matching hole are perpendicular to each other, the upper plane of support base is formed with mounting portion and positioning portion respectively, the matching hole on bearing seat is directly opposite positioning portion, the mounting hole on bearing seat is located the upper of mounting portion, notch is equipped between mounting portion and positioning portion, notch is opened downward from the upper plane of support base, the hooking piece is slidably equipped in notch, the top end of hooking piece is lower than the upper plane of support base, the utility model is set on the support base Slidable hooking piece, to facilitate the quick chain or sling of the suspension device from the below of bearing seat, realize the hoisting of bearing seat.

Description

Technical Field

[0001] This utility model relates to the field of wind turbine hub technology, and in particular to a support clamp for wind turbine hub bearing seats that is easy to hoist. Background Technology

[0002] The nacelle of a wind turbine houses its critical equipment, including the gearbox and generator. Due to the high loads of wind power generation, the gearbox within the nacelle typically requires multiple large bearings and large bearing housings. The wind turbine hub bearing housing is a key component of the wind turbine, bearing enormous dynamic and static loads during operation. With the development of modern technology and increasingly stringent requirements for bearing housing machining technology, its machining accuracy directly affects the overall assembly accuracy of the turbine. For example… Figure 1 The bearing housing 10 shown includes a mating hole 11 and multiple mounting holes 12. The mating hole 11 is used to assemble the bearing. The end face of the mating hole 11 needs to abut against the mounting base, end cover, or other devices, thus requiring a certain machining accuracy. A common machining method is to place the bearing housing 10 horizontally, making the axis of the mating hole 11 perpendicular to the machining plane, and use a CNC machine tool for boring or milling. After machining, the bearing housing 10 is flipped over for boring or milling again, thus completing the machining of the bearing housing 10. However, double-sided machining of the bearing housing 10 requires flipping it over. Due to the large weight of the bearing housing 10, flipping it over is difficult, requiring a suspension device. However, because the side of the bearing housing 10 abuts against the upper surface of the fixture, it is difficult to insert the chain hoist or sling of the suspension device under the bearing housing 10, affecting installation efficiency.

[0003] To address the aforementioned technical problems, Chinese patent document CN202322897428.8 discloses a support fixture for a wind turbine hub bearing housing, used to support and position the bearing housing. The bearing housing has a mating hole and multiple mounting holes, with symmetrical positioning holes on the inner wall of the mating hole. The support fixture includes a support base, with a support portion and a positioning portion on the upper surface of the support base. The bearing housing is mounted on the positioning portion, which has a rotating bracket. A pre-positioning connector is rotatably mounted on the rotating bracket, and a connecting bolt is threaded onto the pre-positioning connector. The connecting bolt is mated and connected to the positioning hole. Multiple grooves are evenly distributed on the support base at the support portion, and a first support member and a second support member are slidably mounted in the grooves. The first and second support members support the bearing housing, and each of the first and second support members is directly opposite a mounting hole. The aforementioned patent elevates the bearing housing 10 onto a fixture, allowing both machined surfaces of the bearing housing 10 to face the cutting tool, thus reducing the need for flipping. However, relying solely on the circumferential side for support affects installation stability, increases processing difficulty, and raises production costs.

[0004] Therefore, it is necessary for those skilled in the art to provide a support fixture for wind turbine hub bearing housing that is easy to hoist, so as to enable rapid suspension and installation of wind turbine hub bearing housing and ensure processing efficiency. Utility Model Content

[0005] The purpose of this utility model is to provide a support clamp for wind turbine hub bearing housing that is easy to hoist, so as to solve the technical problem in the prior art that it is difficult for the chain hoist or sling of the suspension device to be inserted under the wind turbine hub bearing housing during the process of suspending the wind turbine hub bearing housing, which affects the installation efficiency.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a support clamp for wind turbine hub bearing housing that is easy to hoist, used to support the bearing housing. The bearing housing is provided with mating holes and multiple mounting holes. The mating holes penetrate the wall of the bearing housing. The axis of the mounting holes is perpendicular to the axis of the mating holes. The upper surface of the support base is respectively formed with a mounting part and a positioning part. The mating holes on the bearing housing are directly opposite the positioning parts. The mounting holes on the bearing housing are located above the mounting parts. A notch is provided between the mounting parts and the positioning parts. The notch is opened downward from the upper surface of the support base. A hook is slidably provided in the notch. The top of the hook is lower than the upper surface of the support base.

[0007] Furthermore, a lead screw is rotatably provided within the notch, and a slider is slidably provided within the notch. The slider is connected to the lead screw, and the side wall of the slider abuts against the side wall of the notch and slides along the axis of the lead screw. The hook is detachably provided on the top of the slider.

[0008] Furthermore, the hook is a lifting ring.

[0009] Furthermore, the support base has a square plate structure, the positioning part is located in the middle of the support base, the mounting part is provided in two places and located on both sides of the positioning part, and the bearing seat is installed on the top of the support base.

[0010] Furthermore, the mounting part is provided with a mounting groove, and a mounting block is connected in the mounting groove. The mounting groove is opened inward from the end face of the support base. The mounting block is slidably set in the mounting groove. The mounting block is provided with a limiting block, which can abut against the side of the bearing seat.

[0011] Furthermore, the limiting block is also provided with multiple limiting holes, one limiting hole and one mounting hole are arranged coaxially, and a locking element is fitted inside the limiting hole, the locking element being a bolt.

[0012] Furthermore, the positioning part is provided with a positioning boss, the top surface of which is higher than the top surface of the mounting part and abuts against the bearing seat.

[0013] Furthermore, a positioning hole is provided on the top surface of the positioning boss, and a positioning component is fitted and connected in the positioning hole. The positioning component includes a diamond-shaped pin and a mating part. The mating part can be inserted and removed into the positioning hole. The diamond-shaped pin is located above the positioning boss, and the side of the diamond-shaped pin can abut against the inner wall of the mating hole. The outer contour of the diamond-shaped pin is diamond-shaped.

[0014] Furthermore, the mounting groove is a dovetail groove, and the mounting block is a dovetail tenon, with the dovetail tenon fitting into the dovetail groove.

[0015] The beneficial effects of this utility model are as follows: This utility model provides a sliding hook on the support base to facilitate the quick passage of the chain hoist or sling of the suspension device under the bearing seat, thereby achieving the hoisting of the bearing seat. Compared with the prior art, which uses partial lifting and then winding, the process of suspending the bearing seat in this utility model is more convenient and safer. The bearing seat does not need to be moved or tilted; it only needs to be stably placed on the support base. By moving the hook on the support base, the suspension device can be set at both ends of the bearing seat for quick and stable suspension, greatly improving processing stability and safety. Attached Figure Description

[0016] Figure 1 This is a perspective view of the support clamp for the wind turbine hub bearing seat that is easy to hoist, according to this utility model.

[0017] Figure 2 This is an exploded view of the wind turbine hub bearing housing support fixture for easy hoisting according to this utility model.

[0018] Figure 3 This is a top view of the support clamp for the wind turbine hub bearing seat that is easy to hoist, according to this utility model.

[0019] Figure 4 yes Figure 3 Sectional view along the middle AA.

[0020] Figure 5 yes Figure 4 A magnified view of part A in the middle.

[0021] The components in the attached diagram are labeled as follows: 10, bearing housing; 11, mating hole; 12, mounting hole; 20, support base; 21, mounting part; 211, mounting groove; 212, mounting block; 213, limiting block; 214, limiting hole; 22, positioning part; 23, notch; 24, positioning boss; 25, positioning hole; 26, positioning element; 261, diamond pin; 262, mating part; 27, slider; 28, lead screw; 29, hook. Detailed Implementation

[0022] The present invention will now be described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0023] Please see Figure 1 This utility model provides a support fixture for wind turbine hub bearing housing that is easy to hoist, used to support the bearing housing 10. The bearing housing 10 is provided with a mating hole 11 and multiple mounting holes 12. The mating hole 11 penetrates the wall of the bearing housing 10, and the axis of the mounting hole 12 is perpendicular to the axis of the mating hole 11. This utility model provides a support fixture for supporting and positioning the bearing housing 10, which facilitates the machining of the mating hole 11 or the end face of the bearing housing 10 using a CNC boring machine or milling machine (not shown).

[0024] Further, please refer to Figure 2 , Figure 3 , Figure 5 The support base 20 has a square plate-like structure, and the upper surface of the support base 20 has a mounting part 21 and a positioning part 22. The positioning part 22 is located in the middle of the support base 20, and the mounting part 21 has two locations on both sides of the positioning part 22. The bearing seat 10 is installed above the support base 20, the mating hole 11 on the bearing seat 10 is directly opposite the positioning part 22, and the mounting hole 12 on the bearing seat 10 is located above the mounting part 21.

[0025] Furthermore, the mounting part 21 has a mounting groove 211, and a mounting block 212 is connected within the mounting groove 211. The mounting groove 211 extends inward from the end face of the support base 20. The mounting block 212 is slidably disposed within the mounting groove 211. The mounting block 212 has a limiting block 213, which abuts against the side of the bearing seat 10. The limiting block 213 also has multiple limiting holes 214, with each limiting hole 214 coaxially arranged with a mounting hole 12. A locking element (not shown in the figure) is connected within the limiting hole 214, and the locking element includes, but is not limited to, bolts.

[0026] In use, place the bearing housing 10 on the support base 20, slide the limiting block 213 to move the limiting block 213 to the side of the bearing housing 10. If a gap is formed between the limiting block 213 and the bearing housing 10, fill it with a shim, including but not limited to a rubber pad, to fill the gap and prevent wear on the outer surface of the bearing housing 10. After the limiting block 213 abuts against the bearing housing 10, pass the locking member through the limiting hole 214 and the mounting hole 12 and lock it with a nut to fix the bearing housing 10 and the limiting block 213 into a single unit, thus achieving initial installation.

[0027] In this embodiment, the mounting groove 211 is a dovetail groove, and the mounting block 212 is a dovetail tenon. The dovetail tenon is fitted into the dovetail groove to ensure the stability of the connection and sliding.

[0028] In another embodiment, the mounting groove 211 is a T-groove, and the mounting block 212 is a T-block. The T-block is connected in conjunction with the T-groove to reduce the manufacturing cost of the equipment.

[0029] Furthermore, the positioning part 22 is provided with a positioning boss 24. The top surface of the positioning boss 24 is higher than the top surface of the mounting part 21 and abuts against the bearing seat 10. The positioning boss 24 is used to raise the installation height of the bearing seat 10 on the support base 10, so that there is a higher gap between the bearing seat 10 and the support base 20, which provides conditions for the subsequent hoisting equipment to be inserted under the premise of ensuring stable installation.

[0030] The top surface of the positioning boss 24 is provided with a positioning hole 25, and a positioning element 26 is fitted inside the positioning hole 25. The positioning element 26 includes a rhomboid pin portion 261 and a mating portion 262. The mating portion 262 is pluggable and detachable inside the positioning hole 25. The rhomboid pin portion 261 is located above the positioning boss 24, and the side of the rhomboid pin portion 261 can abut against the inner wall of the mating hole 11. The outer contour of the rhomboid pin portion 261 is rhomboid. The positioning element 26 of this utility model utilizes the unique shape of its rhomboid pin portion 261 to effectively restrict the degree of freedom of the bearing seat 10 in the other two directions. Compared with cylindrical pins, it is more stable during positioning and easier to install.

[0031] In use, the bearing seat 10 is placed on the upper surface of the positioning boss 24. The positioning member 26 is used to position the bearing seat 10 with one pin on one side, thereby restricting the five degrees of freedom. Combined with the limiting block 213, the bearing seat 10 is fully positioned, ensuring quick and stable installation.

[0032] Furthermore, a notch 23 is provided between the mounting part 21 and the positioning part 22. The notch 23 extends downward from the upper plane of the support base 20. A lead screw 28 is rotatably provided within the notch 23, and a slider 27 is slidably provided within the notch 23. The slider 27 is connected to the lead screw 28, and its sidewall abuts against the sidewall of the notch 23 and slides along the axis of the lead screw 28. In use, by rotating the lead screw 28, the slider 27 slides from one end of the notch 23 to the other. A hook 29 is provided at the top of the slider 27. The top of the hook 29 is lower than the upper plane of the support base 20. The hook 29 includes, but is not limited to, a lifting ring. The hook 29 is used to temporarily hook or wrap a suspension device, such as a chain hoist or sling, so that the sling can pass under the bearing seat 10 for easy suspension of the bearing seat 10.

[0033] The specific operation method of this utility model is as follows: Step 1: Place the bearing seat 10 on the support base 20, and then connect the diamond-shaped pin 261 of the positioning member 26 to the mating hole 11 on the bearing seat 10, and connect the mating part of the positioning member 26 to the positioning hole 25 to complete the positioning of the bearing seat 10.

[0034] Step 2: Slide the limiting block 213 to move it to the side of the bearing seat 10, pass the locking member through the limiting hole 214 and the mounting hole 12 and lock it with a nut, so that the bearing seat 10 and the limiting block 213 are fixedly connected as one unit, and the locking installation is achieved.

[0035] Step 3: After completing the processing of the bearing housing 10, wind the chain hoist or sling of the suspension device onto the hook 29, drive the hook 29 to move so that it passes under the bearing housing 10, and then unwind the chain hoist or sling of the suspension device from the hook 29 to complete the hoisting preparation.

[0036] Step 4: Wrap the chain hoist or sling of the suspension device around the bearing seat 10 to complete the installation of the hoisting device.

[0037] This invention features a slidable hook 29 on the support base 20, which allows the chain hoist or sling of the suspension device to be quickly passed under the bearing seat 10 for hoisting. Compared to the prior art's method of partially lifting and then winding, this invention makes the process of suspending the bearing seat 10 more convenient and safer. The bearing seat 10 does not need to be moved or tilted; it only needs to be stably placed on the support base 20. By moving the hook 29 on the support base 20, the suspension device can be set at both ends of the bearing seat 10 for quick and stable suspension, greatly improving processing stability and safety.

[0038] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A support clamp for a wind turbine hub bearing housing that is easy to hoist, used to support a bearing housing (10), wherein the bearing housing (10) is provided with a mating hole (11) and a plurality of mounting holes (12), the mating hole (11) penetrates the wall of the bearing housing (10), and the axis of the mounting hole (12) is perpendicular to the axis of the mating hole (11), characterized in that, The upper surface of the support base (20) is formed with an installation part (21) and a positioning part (22). The mating hole (11) on the bearing seat (10) is directly opposite the positioning part (22). The installation hole (12) on the bearing seat (10) is located above the installation part (21). A notch (23) is provided between the installation part (21) and the positioning part (22). The notch (23) is opened downward from the upper surface of the support base (20). A hook (29) is slidably provided in the notch (23). The top of the hook (29) is lower than the upper surface of the support base (20).

2. The wind turbine hub bearing housing support clamp for easy hoisting as described in claim 1, characterized in that, A lead screw (28) is rotatably provided inside the notch (23), and a slider (27) is slidably provided inside the notch (23). The slider (27) is connected to the lead screw (28). The side wall of the slider (27) abuts against the side wall of the notch (23) and slides along the axis of the lead screw (28). The hook (29) is detachably provided on the top of the slider (27).

3. The wind turbine hub bearing housing support clamp for easy hoisting as described in claim 2, characterized in that, The hook (29) is a lifting ring.

4. The wind turbine hub bearing housing support clamp for easy hoisting as described in claim 1, characterized in that, The support base (20) has a square plate structure. The positioning part (22) is located in the middle of the support base (20). The mounting part (21) is provided in two places and is located on both sides of the positioning part (22). The bearing seat (10) is installed above the support base (20).

5. The wind turbine hub bearing housing support clamp for easy hoisting as described in claim 1, characterized in that, The mounting part (21) is provided with a mounting groove (211), and a mounting block (212) is connected in the mounting groove (211). The mounting groove (211) is opened inward from the end face of the support base (20). The mounting block (212) is slidably disposed in the mounting groove (211). A limiting block (213) is provided on the mounting block (212), and the limiting block (213) can abut against the side of the bearing seat (10).

6. The wind turbine hub bearing housing support clamp for easy hoisting as described in claim 5, characterized in that, The limiting block (213) is also provided with multiple limiting holes (214). One limiting hole (214) and one mounting hole (12) are arranged coaxially. A locking element is connected in the limiting hole (214), and the locking element is a bolt.

7. The wind turbine hub bearing housing support clamp for easy hoisting as described in claim 1, characterized in that, The positioning part (22) is provided with a positioning boss (24), the top surface of the positioning boss (24) is higher than the top surface of the mounting part (21) and abuts against each other with the bearing seat (10).

8. The wind turbine hub bearing housing support clamp for easy hoisting as described in claim 7, characterized in that, The top surface of the positioning boss (24) is provided with a positioning hole (25), and a positioning component (26) is connected in the positioning hole (25). The positioning component (26) includes a rhomboid pin (261) and a mating part (262). The mating part (262) can be plugged into the positioning hole (25). The rhomboid pin (261) is located above the positioning boss (24). The side of the rhomboid pin (261) can abut against the inner wall of the mating hole (11). The outer contour of the rhomboid pin (261) is rhomboid.

9. The wind turbine hub bearing housing support clamp for easy hoisting as described in claim 5, characterized in that, The mounting groove (211) is a dovetail groove, and the mounting block (212) is a dovetail tenon. The dovetail tenon is fitted and connected in the dovetail groove.

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