Rust-proof screw rod for fixing wind turbine generator base

Abstract

The utility model discloses an anti-rust screw rod for fixing a wind turbine generator base in the technical field of wind turbine generator installation, which comprises a rod body, nuts are screwed at two ends of the outer wall of the rod body, movable sleeves are sleeved on one sides of the two nuts close to the center of the rod body, and installation grooves are arranged on two sides of inner cavities of the two movable sleeves. Protective shells are mounted on the sides, away from the center of the rod body, of the two movable sleeves, the two nuts are located in the two protective shells correspondingly, inserting blocks are connected to the sides, close to the center of the rod body, of the two protective shells correspondingly, the ends, away from the protective shells, of the inserting blocks extend into the mounting grooves, and fixing assemblies are arranged between the inserting blocks and the movable sleeves. The protective shell, the inserting block, the mounting groove, the fixing assembly and the movable sleeve are arranged in a matched mode, the protective shell can be fixedly mounted on the movable sleeve conveniently, the nut and the end of the rod body are isolated from the external environment through the protective shell, and the phenomenon that the end of the rod body and the nut are rusted under erosion of wind and rain is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of wind turbine installation, in particular to a rust-proof screw rod for fixing a wind turbine base. Background Art

[0002] Wind power refers to electricity generated by wind power. Its wind turbine is a device that converts external wind power into electrical energy. Wind is a pollution-free energy source. Using wind power to generate electricity is very environmentally friendly and can generate huge amounts of electricity. Therefore, more and more countries are paying more attention to wind power generation. As a clean and renewable energy source, wind energy is increasingly valued by countries around the world. In order to ensure the safety of wind turbines during use, they generally need to be installed using a dedicated base, and the base is usually fixed with screws.

[0003] However, the existing screws are usually protected by spraying paint. When the paint falls off, the protection means will fail, causing the screw to rust, making it difficult to remove the meshing nut on the screw. Under the erosion of external factors such as wind and rain, the end exposed to the outside is prone to rust. The degree of rust continues to increase, further increasing the difficulty of removing the nut, thereby causing adverse effects on the use and installation of the wind turbine. Based on this, we propose a rust-proof screw for fixing the base of a wind turbine. Utility Model Content

[0004] In order to improve the problem that the paint on the existing screw falls off, which will cause the protection measures to fail and cause the screw to rust, thereby making the nut engaged on the screw difficult to remove, and further under the erosion of the external environment, the degree of rust continues to increase, further increasing the difficulty of removing the nut, the utility model provides a rust-proof screw for fixing the base of a wind turbine.

[0005] The utility model provides a rust-proof screw for fixing a wind turbine base, which adopts the following technical solution:

[0006] A rust-proof screw for fixing a wind turbine base comprises a rod body, nuts are screwed at both ends of the outer wall of the rod body, movable sleeves are sleeved on the side of two groups of nuts close to the center of the rod body, mounting grooves are opened on both sides of the inner cavity of the two groups of movable sleeves, protective shells are installed on the side of the two groups of movable sleeves away from the center of the rod body, the two groups of nuts are respectively located inside the two groups of protective shells, the two groups of protective shells are connected to the side close to the center of the rod body, the end of the insert block facing away from the protective shell extends into the interior of the mounting groove, and a fixing component is arranged between the insert block and the movable sleeve.

[0007] By adopting the above technical solution, the protective shell is fixed to the base through nuts at both ends, the plug is inserted into the corresponding installation groove, and the plug is locked and fixed by the fixing assembly, so that the protective shell is conveniently fixed on the movable sleeve, so that the nut is located inside the movable sleeve, and the nut and the end of the rod body are isolated from the external environment by the protective shell, thereby avoiding the rust of the end of the rod body and the nut under the erosion of wind and rain, and improving the anti-rust effect of the rod body.

[0008] Optionally, the ends of the two sets of movable sleeves away from the protective shell are both connected with rubber pads.

[0009] By adopting the above technical solution and setting the rubber pad, the end of the movable sleeve is more tightly in direct contact with the surface of the base, and the sealing performance is better, that is, the phenomenon of rust on the rod body is further avoided.

[0010] Optionally, the fixing assembly includes a movable rod, which is inserted into the interior of the mounting slot, and a movable plate is installed on the side of the movable rod close to the center of the mounting slot, a positioning spring is sleeved on the outer wall of the movable rod, and the positioning spring is located between the movable plate and the inner wall of the mounting slot, and a plurality of limit blocks are connected to the end of the movable plate away from the movable rod, and a plurality of limit grooves for plugging and cooperating with the limit blocks are opened on the outer side of the plug block, and the end of the movable rod away from the plug block extends out of the movable sleeve and is installed with a pull plate.

[0011] By adopting the above technical solution, when it is necessary to release the fixing effect of the limit block on the limit slot, the pull plate is pulled outward, and the pull plate drives the movable plate to move through the movable rod and compresses the positioning spring until the limit block is separated from the limit slot.

[0012] Optionally, a pull ring is connected to one end of the pull plate away from the movable sleeve.

[0013] By adopting the above technical solution, it is convenient for the staff to hold the pull ring and pull the pull plate to move.

[0014] Optionally, the inner cavity of the rod body is provided with an oil storage cavity, the two sides of the oil storage cavity are connected to a plurality of oil outlet channels, the top of the oil storage cavity is connected to a accommodating cavity, and the bottom of the accommodating cavity and the top of the oil storage cavity are interconnected.

[0015] By adopting the above technical solution, a proper amount of lubricating oil is injected into the oil storage cavity, and the lubricating oil can slowly flow into the oil outlet channel, so that the lubricating oil can flow into the outside of the rod body, fully lubricating the outside of the rod body to prevent rust on the rod body.

[0016] Optionally, an oil pressure component is provided between the oil storage cavity and the accommodation cavity. The oil pressure component includes a turntable which is screwed inside the accommodation cavity. A piston rod is connected to the bottom of the turntable, a return spring is connected to the bottom of the piston rod, and a piston is installed at the bottom of the return spring.

[0017] By adopting the above technical solution, when the turntable is rotated, the turntable drives the piston rod to rotate and move downward. The piston rod drives the piston to move downward through the return spring, increasing the pressure, so that the lubricating oil in the oil storage cavity is pressed towards the oil outlet channel, thereby accelerating the flow rate of the lubricating oil.

[0018] Optionally, a cross slot is provided at the top of the turntable.

[0019] By adopting the above technical solution, it is convenient for the staff to control the rotation of the turntable by using the cross slot.

[0020] In summary, the present utility model has at least one of the following beneficial effects:

[0021] Through the cooperative setting of the protective shell, insertion block, installation groove, fixing component and movable sleeve, it is convenient to fixedly install the protective shell on the movable sleeve. The protective shell isolates the nut and the end of the rod body from the external environment, avoiding the phenomenon that the end of the rod body and the nut are corroded by wind and rain.

[0022] Through the cooperative setting of the oil outlet channel, oil storage cavity, oil pressure component and accommodation cavity, after adding lubricating oil into the oil storage cavity, it can continuously provide lubrication for the outer wall of the rod body, so as to maintain the outer ring surface of the rod body to prevent the rod body from rusting. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0024] Figure 1 It is a schematic cross-sectional structure diagram of the present utility model;

[0025] Figure 2 For the present utility model Figure 1 The schematic diagram of the structure at position A;

[0026] Figure 3 It is a schematic top view structure diagram of the turntable of the present utility model;

[0027] Figure 4 It is a schematic front view structure diagram of the present utility model.

[0028] In the figure: 1. Protective shell; 2. Nut; 3. Insert block; 4. Installation groove; 5. Rubber pad; 6. Rod body; 7. Fixing component; 701. Limit groove; 702. Limit block; 703. Movable plate; 704. Positioning spring; 705. Movable rod; 706. Pulling plate; 8. Movable sleeve; 9. Oil outlet channel; 10. Oil storage cavity; 11. Oil pressure component; 1101. Piston; 1102. Return spring; 1103. Piston rod; 1104. Turntable; 12. Accommodating cavity; 13. Cross slot. Specific implementation mode

[0029] The following is a further detailed description of the present utility model in conjunction with the attached Figures 1-4 drawings.

[0030] Please refer to the drawings in the specification Figure 1 . An embodiment provided by the present utility model: An anti-rust screw rod for fixing the base of a wind turbine unit, including a rod body 6. An oil storage cavity 10 is arranged in the inner cavity of the rod body 6. A plurality of oil outlet channels 9 are connected to both sides of the oil storage cavity 10. The top of the oil storage cavity 10 is connected with an accommodating cavity 12. The bottom of the accommodating cavity 12 is communicated with the top of the oil storage cavity 10. Appropriate lubricating oil is injected into the oil storage cavity 10. The lubricating oil can slowly flow into the interior of the oil outlet channels 9, so that the lubricating oil can flow to the outside of the rod body 6, fully lubricating the outside of the rod body 6 and avoiding the corrosion of the rod body 6.

[0031] Please refer to the drawings in the specification Figure 1 and Figure 3 . An oil pressure component 11 is arranged between the oil storage cavity 10 and the accommodating cavity 12. The oil pressure component 11 includes a turntable 1104. The turntable 1104 is screwed in the interior of the accommodating cavity 12. The bottom of the turntable 1104 is fixedly connected with a piston rod 1103. The bottom of the piston rod 1103 is fixedly connected with a return spring 1102. The bottom of the return spring 1102 is fixedly installed with a piston 1101. Rotate the turntable 1104. The turntable 1104 drives the piston rod 1103 to rotate and move downward. The piston rod 1103 drives the piston 1101 to move downward through the return spring 1102, increasing the pressure, so that the lubricating oil in the oil storage cavity 10 is pressed towards the oil outlet channels 9, thereby accelerating the flow rate of the lubricating oil. A cross slot 13 is arranged at the top of the turntable 1104. It is convenient for the staff to control the rotation of the turntable 1104 by using the cross slot 13.

[0032] Please refer to the drawings in the specification Figure 1 and Figure 4, nuts 2 are screwed on both ends of the outer wall of the rod body 6, and movable sleeves 8 are slidably sleeved on the side of the two sets of nuts 2 close to the center of the rod body 6, and rubber pads 5 are fixedly connected to the ends of the two sets of movable sleeves 8 away from the protective shell 1, and the rubber pads 5 are slidably connected to the rod body 6. The provision of the rubber pads 5 makes the end of the movable sleeve 8 more tightly in direct contact with the surface of the base, and its sealing is better, that is, the phenomenon of rust on the rod body 6 is further avoided.

[0033] Please refer to the attached figure in the instruction manual Figure 1 and Figure 2 , mounting grooves 4 are provided on both sides of the inner cavity of the two sets of movable sleeves 8, and protective shells 1 are installed on the sides of the two sets of movable sleeves 8 away from the center of the rod body 6. The two sets of nuts 2 are respectively located inside the two sets of protective shells 1, and the two sets of protective shells 1 are fixedly connected with plug blocks 3 on the sides close to the center of the rod body 6. The end of the plug block 3 away from the protective shell 1 extends into the interior of the mounting groove 4. A fixing component 7 is arranged between the plug block 3 and the movable sleeve 8, and the fixing component 7 includes a movable rod 705, which is slidably arranged inside the mounting groove 4. A movable plate 703 is fixedly installed on one side of the movable rod 705 near the center of the installation groove 4, a positioning spring 704 is sleeved on the outer wall of the movable rod 705, and the positioning spring 704 is located between the movable plate 703 and the inner wall of the installation groove 4, and a plurality of limit blocks 702 are fixedly connected to one end of the movable plate 703 away from the movable rod 705, and a plurality of limit grooves 701 for plugging and matching the limit blocks 702 are provided on the outer side of the plug block 3, and the end of the movable rod 705 away from the plug block 3 extends out of the movable sleeve 8 and is installed with a pull plate 706. When it is necessary to release the fixing effect of the limit block 702 on the limit groove 701, the pull plate 706 is pulled outward, and the pull plate 706 drives the movable plate 703 to move through the movable rod 705 and compresses the positioning spring 704 until the limit block 702 is separated from the limit groove 701. A pull ring is fixedly connected to one end of the pull plate 706 away from the movable sleeve 8. It is convenient for the staff to hold the pull ring and pull the pull plate 706 to move.

[0034] Working principle: When in use, the protective shell 1 is fixed to the base of the wind turbine by nuts 2 at both ends. When the protective shell 1 is installed, a proper amount of lubricating oil is injected into the oil storage chamber 10. The lubricating oil can slowly flow into the oil outlet channel 9, so that the lubricating oil can flow into the outside of the rod body 6, fully lubricate the outside of the rod body 6, and prevent the rod body 6 from rusting. When the flow rate of the lubricating oil is too low, the piston 1101 and the piston rod 1103 are inserted into the oil storage chamber 10. Since the turntable 1104 is threadedly connected to the accommodating chamber 12, rotating the turntable 1104 drives the piston rod 1103 to rotate and move downward, and the movable rod 1103 drives the piston 1101 to move downward through the reset spring 1102, increasing the pressure, so that the lubricating oil in the oil storage chamber 10 is pressed toward the oil outlet channel 9, thereby accelerating the flow rate of the lubricating oil.

[0035] Meanwhile, pull the pull plate 706 outward at the hand-held pull ring. The pull plate 706 drives the movable plate 703 to move through the movable rod 705 and compresses the positioning spring 704. The movement of the movable plate 703 drives the limit block 702 to move. At this time, insert the insertion block 3 into the corresponding installation groove 4, and release the pull ring. Under the elastic force of the movable rod 705, the movable plate 703 resets and drives the limit block 702 to be inserted into the limit groove 701, so that the insertion block 3 can be locked and fixed, which is convenient to fixedly install the protective shell 1 on the movable sleeve 8. Furthermore, the end parts of the nut 2 and the rod body 6 can be isolated from the external environment through the protective shell 1, avoiding the phenomenon that the end part of the rod body 6 and the nut 2 are corroded under the erosion of wind and rain, and improving the anti-corrosion effect of the rod body 6.

[0036] The above are all the preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention shall be covered within the protection scope of the present invention.

Claims

1. An anti-rust screw for fixing the base of a wind turbine, comprising a rod body (6), characterized in that: Both ends of the outer wall of the rod body (6) are threaded with nuts (2); a movable sleeve (8) is sleeved on one side of the two sets of nuts (2) close to the center of the rod body (6); installation grooves (4) are provided on both sides of the inner cavity of the two sets of movable sleeves (8); a protective shell (1) is installed on one side of the two sets of movable sleeves (8) away from the center of the rod body (6); the two sets of nuts (2) are respectively located inside the two sets of protective shells (1); the two sets of protective shells (1) are connected to an insert block (3) on one side close to the center of the rod body (6); an end of the insert block (3) facing away from the protective shell (1) extends into the interior of the installation groove (4); a fixing component (7) is provided between the insert block (3) and the movable sleeve (8).

2. The anti-rust screw for fixing the base of a wind turbine unit according to claim 1, wherein: The ends of the two sets of movable sleeves (8) away from the protective shell (1) are both connected to rubber pads (5).

3. The anti-rust screw for fixing the base of a wind turbine unit according to claim 1, wherein: The fixing assembly (7) comprises a movable rod (705), the movable rod (705) being inserted into the interior of the installation groove (4), a movable plate (703) being installed on one side of the movable rod (705) close to the center of the installation groove (4), a positioning spring (704) being sleeved on the outer wall of the movable rod (705), and the positioning spring (704) being located between the movable plate (703) and the inner wall of the installation groove (4), a plurality of limit blocks (702) being connected to one end of the movable plate (703) away from the movable rod (705), a plurality of limit grooves (701) being plugged into and matched with the limit blocks (702) being provided on the outer side of the plug block (3), and a movable sleeve (8) being installed on one end of the movable rod (705) away from the plug block (3).

4. The anti-rust screw for fixing the base of a wind turbine unit according to claim 3, characterized in that: One end of the pull plate (706) facing away from the movable sleeve (8) is connected with a pull ring.

5. The anti-rust screw for fixing the base of a wind turbine unit according to claim 1, characterized in that: The inner cavity of the rod body (6) is provided with an oil storage cavity (10), the two sides of the oil storage cavity (10) are connected to a plurality of oil outlet channels (9), the top of the oil storage cavity (10) is connected to a receiving cavity (12), and the bottom of the receiving cavity (12) and the top of the oil storage cavity (10) are interconnected.

6. The anti-rust screw for fixing the base of a wind turbine unit according to claim 5, characterized in that: An oil pressure assembly (11) is arranged between the oil storage chamber (10) and the accommodating chamber (12), and the oil pressure assembly (11) comprises a turntable (1104), the turntable (1104) is screwed inside the accommodating chamber (12), the bottom of the turntable (1104) is connected to a piston rod (1103), the bottom of the piston rod (1103) is connected to a return spring (1102), and the bottom of the return spring (1102) is installed with a piston (1101).

7. The anti-rust screw for fixing the base of a wind turbine unit according to claim 6, characterized in that: The top of the rotating disk (1104) is provided with a cross groove (13).

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