Anti-seismic support and hanger for fan

Abstract

The utility model relates to the technical field of support hanger, especially to a fan anti-seismic support hanger, including the base connected with building structure, bearing screw rod, upper nut, lower nut and support plate, the fan welding fixed on the support plate, four bearing screw rods respectively pass four corners of support plate, every bearing screw rod corresponds an upper nut and lower nut, the upper nut is located the top of support plate, and the anti-loose assembly is uniformly arranged between upper nut and support plate and between lower nut and support plate, the anti-loose assembly includes anti-loose sleeve and wedge nut, the wedge nut is connected with bearing screw rod threadedly, the one end of wedge nut cross section area is larger and is towards support plate and is contacted with support plate, the taper hole is seted up in anti-loose sleeve, the taper hole is inserted with the taper head of wedge nut and is matched, and the taper hole and wedge nut taper surface are matched. The utility model has the technical effect of reducing the nut loosening condition.

Description

Technical Field

[0001] This utility model relates to the technical field of supports and hangers, and in particular to a wind turbine anti-seismic support and hanger. Background Technology

[0002] When a fan is running, the rotation of the motor and the action of airflow generate continuous, multi-directional vibrations. These vibrations are transmitted to the supports that fix it in place, causing slight relative displacement or rotation of the fastening nuts on the support bolts. Over time, the nuts will gradually loosen, and the preload will decrease.

[0003] If the nuts become loose, it will lead to a series of serious consequences: 1) The fan itself will be unstable, the vibration will intensify, forming a vicious cycle and accelerating the damage to components such as bearings; 2) Abnormal noise will be generated; 3) In extreme cases, the equipment may fall off, causing a safety accident. Utility Model Content

[0004] In order to solve the problems existing in the prior art, the present invention provides a fan anti-seismic support bracket that can reduce the occurrence of nut loosening.

[0005] This utility model provides a wind turbine anti-seismic support bracket, which adopts the following technical solution: A wind turbine seismic bracing system includes a base connected to the building structure, load-bearing screws, an upper nut, a lower nut, and a support plate. The wind turbine is welded and fixed to the support plate. Four load-bearing screws pass through the four corners of the support plate, and each load-bearing screw corresponds to an upper nut and a lower nut. The upper nut is located above the support plate, and anti-loosening components are provided between the upper nut and the support plate, and between the lower nut and the support plate. The anti-loosening component includes an anti-loosening sleeve and a wedge nut. The wedge nut is threadedly connected to the load-bearing screw. The end of the wedge nut with the larger cross-sectional area faces the support plate and contacts the support plate. The anti-loosening sleeve has a tapered hole, which is inserted and matched with the tapered head of the wedge nut. The tapered hole matches the tapered surface of the wedge nut.

[0006] Optionally, the wedge nut has multiple contraction grooves along the axial direction.

[0007] Optionally, a vibration damping pad is provided between the wedge nut and the support plate.

[0008] Optionally, the bottom of the anti-loosening sleeve is fixed with two insert rods, and the support plate and vibration isolation pad are both provided with insertion holes, and the insert rods are inserted into the insertion holes.

[0009] Optionally, the end face of the wedge nut away from the support plate is a first annular plane, on which multiple radially distributed sawtooth grooves are machined. A second annular plane is provided on the inner wall of the tapered hole, on which multiple radially distributed sawtooths are machined. The sawtooths and sawtooth grooves are interlocked.

[0010] Optionally, a positioning rod is provided on the support plate, and a positioning rod is provided on both sides of each anti-loosening sleeve. A first mounting block is fixed on the outer wall of the anti-loosening sleeve. Each positioning rod corresponds to a first mounting block. An mounting groove is provided on the first mounting block, and the positioning rod passes through the mounting groove.

[0011] Optionally, a second mounting block is provided on the side of the first mounting block away from the second mounting block. One end of the second mounting block is hinged to the side wall of the first mounting block, and the other end of the second mounting block is provided with a locking bolt. The locking bolt passes through the second mounting block and is threadedly connected to the first mounting block. A sleeve is fixed on the second mounting block, and a spring and a plug-in block are provided inside the sleeve. One end of the plug-in block is a pointed tip, and a plug-in groove is opened on the side wall of the positioning rod. The pointed tip of the plug-in block is inserted into the plug-in groove. The spring is fixed between the second mounting block and the plug-in block, and the plug-in block is slidably connected to the sleeve.

[0012] Compared with the prior art, the present invention has the following technical effects: Utilizing the mechanical wedge principle, this device converts vibration energy into enhanced locking force, resulting in a significantly superior anti-loosening effect compared to traditional friction and mechanical methods. Its self-locking effect remains stable under both long-term high-frequency micro-vibration and occasional severe vibration, effectively preventing nut loosening. This device can be integrated as a standard module into any existing support system, making retrofitting convenient and applicable to a wide range of applications. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this utility model; Figure 2 This is a schematic diagram of the loosening sleeve and wedge nut in Embodiment 1 of this utility model; Figure 3 This is a schematic diagram of the second annular plane and the sawtooth in Embodiment 1 of this utility model; Figure 4 This is a schematic diagram of the positioning rod, the first mounting block, and the second mounting block in Embodiment 2 of this utility model; Figure 5 This is a schematic diagram of the sleeve and the insertion block in Embodiment 2 of this utility model; Figure 6 This is a schematic diagram of the plug block and plug slot in Embodiment 2 of this utility model.

[0014] Explanation of reference numerals in the attached drawings: 1. Base; 2. Load-bearing screw; 3. Upper nut; 4. Lower nut; 5. Support plate; 51. Fan; 52. Vibration damping pad; 6. Anti-loosening component; 61. Anti-loosening sleeve; 611. Tapered hole; 612. Second annular plane; 613. Serrated edge; 62. Wedge nut; 621. Contraction groove; 622. First annular plane; 623. Serrated groove; 7. Insert rod; 71. Insertion hole; 8. Positioning rod; 81. Insertion groove; 9. First mounting block; 91. Mounting groove; 92. Second mounting block; 93. Locking bolt; 94. Sleeve; 95. Insertion block; 96. Spring. Detailed Implementation

[0015] The following is in conjunction with the appendix Figure 1 - Appendix Figure 6 The present invention will be described in further detail below.

[0016] Embodiment 1 of this invention Reference Figure 1 , Figure 2 and Figure 3 This utility model discloses a fan seismic support bracket, including a base 1 connected to the building structure, load-bearing screws 2, upper nuts 3, lower nuts 4, and a support plate 5. A fan 51 is welded and fixed to the support plate 5. The four load-bearing screws 2 pass through the four corners of the support plate 5. Each load-bearing screw 2 corresponds to one upper nut 3 and one lower nut 4. The upper nut 3 is located above the support plate 5, and the lower nut 4 is located below the support plate 5. Anti-loosening components 6 are provided between the upper nut 3 and the support plate 5, and between the lower nut 4 and the support plate 5.

[0017] The following description uses the anti-loosening component 6 between the nut 3 and the support plate 5 as an example. The anti-loosening component 6 includes an anti-loosening sleeve 61 and a wedge nut 62. The wedge nut 62 is threadedly connected to the load-bearing screw 2, and the end of the wedge nut 62 with the larger cross-sectional area faces the support plate 5. The wedge nut 62 has multiple contraction grooves 621 along its axial direction.

[0018] The anti-loosening sleeve 61 has a conical hole 611 inside, which is inserted into the conical head of the wedge nut 62. The conical hole 611 matches the conical surface of the wedge nut 62. A vibration isolation pad 52 is provided between the bottom of the wedge nut 62 and the support plate 5. The vibration isolation pad 52 has an opening for the load-bearing screw 2 to pass through. The diameter of the opening is larger than the diameter of the load-bearing screw 2. The bottom of the wedge nut 62 contacts the vibration isolation pad 52. The upper nut 3 is located above the anti-loosening sleeve 61. After tightening the upper nut 3, the anti-loosening sleeve 61 is pressed down. The conical hole 611 of the anti-loosening sleeve 61 slides downward along the conical head of the wedge nut 62. Due to the action of the conical surface, the downward movement is converted into horizontal compression. The contraction groove 621 of the wedge nut 62 is forced to narrow. The internal thread of the wedge nut 62 and the external thread of the load-bearing screw 2 are completely pressed together, achieving ultra-high strength locking.

[0019] The end face of the wedge nut 62 near the upper nut 3 is a first annular plane 622, on which multiple radially distributed serrated grooves 623 are machined. A second annular plane 612 is provided on the inner wall of the tapered hole 611, on which multiple radially distributed serrated teeth 613 are machined, engaging with the serrated grooves 623. When the upper nut 3 is tightened, the first annular plane 622 contacts and is pressed against the second annular plane 612, and the serrated teeth 613 engage with the serrated grooves 623, forming a mechanical interlock to prevent relative rotation between the wedge nut 62 and the anti-loosening sleeve 61.

[0020] The anti-loosening sleeve 61 has a hexagonal prism shape, making it easy to fix with a wrench and preventing it from rotating with the upper nut 3 when tightening. Two insert rods 7 are fixed to the bottom of the anti-loosening sleeve 61. Insertion holes 71 are provided on both the support plate 5 and the vibration damping pad 52, and the insert rods 7 are inserted into the insertion holes 71. When the anti-loosening sleeve 61 is placed on the load-bearing screw 2, the insert rods 7 are aligned with the insertion holes 71. After rotating the upper nut 3, the insert rods 7 begin to insert into the insertion holes 71, preventing the anti-loosening sleeve 61 from rotating.

[0021] The implementation principle of this utility model for a wind turbine anti-seismic support is as follows: During installation, first tighten the upper nut 3 and lower nut 4 with a wrench. The upper nut 3 and lower nut 4 press against the corresponding anti-loosening sleeve 61. The tapered hole 611 of the anti-loosening sleeve 61 acts on the tapered head of the wedge nut 62. Under the action of the tapered surface, the thread of the wedge nut 62 is forced to tightly bite the thread of the load-bearing bolt, achieving extremely high locking force. Vibration not only fails to loosen it, but also makes the engagement even tighter.

[0022] When the upper nut 3 is tightened, it presses downward against the wedge-shaped self-locking anti-loosening sleeve 61. The tapered hole 611 of the sleeve forces the tapered head of the wedge-shaped nut 62 to retract inward. A huge static friction force is generated between the thread of the wedge-shaped nut 62 and the thread of the load-bearing screw 2, completely locking the relative movement between the threaded pairs. A conical self-locking is formed between the tapered head of the wedge-shaped nut 62 and the tapered hole 611 of the anti-loosening sleeve 61, and any force attempting to loosen the nut will be converted into a greater locking force.

[0023] Embodiment 2 of this utility model Reference Figure 4 , Figure 5 and Figure 6The difference from Embodiment 1 is that the support plate 5 in Embodiment 2 is provided with a positioning rod 8, and each anti-loosening sleeve 61 is provided with a positioning rod 8 on both sides. A first mounting block 9 is fixed on the outer wall of the anti-loosening sleeve 61. Each positioning rod 8 corresponds to a first mounting block 9. The first mounting block 9 is provided with a mounting groove 91. The positioning rod 8 passes through the mounting groove 91, thereby limiting the left and right positions of the anti-loosening sleeve 61 and preventing the anti-loosening sleeve 61 from rotating.

[0024] When installing the support plate 5 and the fan 51, first place the upper nut 3 and the corresponding anti-loosening sleeve 61, wedge nut 62, and vibration isolation pad 52 onto the load-bearing nut. Then place the support plate 5 onto the load-bearing screw 2, followed by the upper and lower nuts 4 and the corresponding anti-loosening sleeve 61, wedge nut 62, and vibration isolation pad 52. When placing the support plate 5 onto the load-bearing screw 2, the positioning rod 8 passes through the mounting groove 91, thereby positioning the anti-loosening sleeve 61 and preventing it from rotating. When the upper nut 3 is tightened, the insertion rod 7 can be smoothly inserted into the insertion hole 71, and the serration 613 can be smoothly inserted into the serrated groove 623.

[0025] The second mounting block 92 is located on the side of the first mounting block 9 away from the second mounting block 92. One end of the second mounting block 92 is hinged to the side wall of the first mounting block 9, and the other end of the second mounting block 92 is provided with a locking bolt 93. The locking bolt 93 passes through the second mounting block 92 and is threadedly connected to the first mounting block 9. A sleeve 94 is fixed on the second mounting block 92. A spring 96 and a plug-in block 95 are provided inside the sleeve 94. One end of the plug-in block 95 is a pointed tip. A plug-in groove 81 is opened on the side wall of the positioning rod 8, and the pointed tip of the plug-in block 95 is inserted into the plug-in groove 81. The spring 96 is fixed between the second mounting block 92 and the plug-in block 95, and the plug-in block 95 is slidably connected to the sleeve 94.

[0026] After tightening the upper nut 3, the height of the plug block 95 is equal to the height of the plug groove 81. Rotate the second mounting block 92 to insert the plug block 95 into the plug groove 81, thereby limiting the height of the plug block 95 and thus limiting the height of the anti-loosening sleeve 61, increasing the stability of the anti-loosening sleeve 61.

[0027] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A type of anti-seismic support for wind turbines, characterized in that: The system includes a base (1) connected to the building structure, load-bearing screws (2), upper nuts (3), lower nuts (4) and a support plate (5). The fan (51) is welded and fixed on the support plate (5). The four load-bearing screws (2) pass through the four corners of the support plate (5) respectively. Each load-bearing screw (2) corresponds to an upper nut (3) and a lower nut (4). The upper nut (3) is located above the support plate (5). Anti-loosening components (6) are provided between the upper nut (3) and the support plate (5) and between the lower nut (4) and the support plate (5). The anti-loosening component (6) includes an anti-loosening sleeve (61) and a wedge nut (62). The wedge nut (62) is threadedly connected to the load-bearing screw (2). The larger end of the wedge nut (62) faces the support plate (5) and contacts the support plate (5). A tapered hole (611) is provided inside the anti-loosening sleeve (61). The tapered hole (611) is inserted into the tapered head of the wedge nut (62). The tapered hole (611) matches the tapered surface of the wedge nut (62).

2. The wind turbine seismic support bracket according to claim 1, characterized in that: The wedge nut (62) has multiple contraction grooves (621) along the axial direction.

3. The wind turbine seismic support bracket according to claim 1, characterized in that: A vibration damping pad (52) is provided between the wedge nut (62) and the support plate (5).

4. The wind turbine seismic support bracket according to claim 3, characterized in that: The bottom of the anti-loosening sleeve (61) is fixed with two insert rods (7), and the support plate (5) and the vibration isolation pad (52) are both provided with insertion holes (71), and the insert rods (7) are inserted into the insertion holes (71).

5. The wind turbine seismic bracing system according to any one of claims 1, 2, or 3, characterized in that: The end face of the wedge nut (62) away from the support plate (5) is a first annular plane (622). Multiple radially distributed sawtooth grooves (623) are machined on the first annular plane (622). A second annular plane (612) is provided on the inner wall of the tapered hole (611). Multiple radially distributed sawtooths (613) are machined on the second annular plane (612). The sawtooths (613) are inserted into the sawtooth grooves (623).

6. The wind turbine seismic support bracket according to claim 1, characterized in that, A positioning rod (8) is provided on the support plate (5). A positioning rod (8) is provided on both sides of each anti-loosening sleeve (61). A first mounting block (9) is fixed on the outer wall of the anti-loosening sleeve (61). Each positioning rod (8) corresponds to a first mounting block (9). An mounting groove (91) is provided on the first mounting block (9). The positioning rod (8) passes through the mounting groove (91).

7. The wind turbine seismic support bracket according to claim 6, characterized in that, The first mounting block (9) has a second mounting block (92) on the side away from the second mounting block (92). One end of the second mounting block (92) is hinged to the side wall of the first mounting block (9), and the other end of the second mounting block (92) is provided with a locking bolt (93). The locking bolt (93) passes through the second mounting block (92) and is threadedly connected to the first mounting block (9). A sleeve (94) is fixed on the second mounting block (92). A spring (96) and a plug block (95) are provided inside the sleeve (94). One end of the plug block (95) is a pointed tip. A plug groove (81) is opened on the side wall of the positioning rod (8). The pointed tip of the plug block (95) is inserted into the plug groove (81). The spring (96) is fixed between the second mounting block (92) and the plug block (95). The plug block (95) and the sleeve (94) are slidably connected.

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