Gear lubricating device for gearbox of wind turbine

Abstract

The utility model discloses a wind turbine gearbox gear lubricating device which comprises a gearbox, an oil cylinder is installed at the top end of the gearbox corresponding to a driven wheel, an opening of the oil cylinder is sealed through a sealer, the sealer is installed inside a first supporting piece in a sliding mode and can be reset through a reset device, and the sealer is connected with an electric push rod. The output end of the electric push rod penetrates through the second supporting piece to be connected with a third supporting piece, and the second supporting piece is connected with one end of the driven wheel through a driving assembly. The driving assembly drives the second supporting piece to move, and the second supporting piece pulls the third supporting piece to be matched with the electric push rod to drive the sealer to move; and the opening of the oil cylinder can be opened and closed, so that lubricating oil in the oil cylinder can drop onto the driven wheel, and the driven wheel and the driving wheel are lubricated along with rotation.

Description

Technical Field

[0001] The utility model relates to the technical field of lubrication devices, in particular to a wind turbine gear box gear lubrication device. Background Art

[0002] Wind power generation refers to the conversion of wind kinetic energy into electrical energy. Wind energy is a new type of renewable energy that is clean and pollution-free. It is energy-saving and environmentally friendly to use wind energy to generate electricity. At the same time, the energy contained in wind energy is huge, so it is valued by people. Wind power generation is closely related to human life, but wind power generation requires the use of gearboxes, and the gearboxes need to be lubricated when used.

[0003] However, the existing gearbox lubrication device generally lubricates the gears by immersing them in lubricating oil, which results in a large waste of lubricating oil during lubrication, thereby increasing the cost of gearbox lubrication. For this reason, we propose a wind turbine gearbox gear lubrication device. Utility Model Content

[0004] The utility model aims to provide a wind turbine gearbox gear lubrication device to solve the problems raised by the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wind turbine gearbox gear lubrication device, comprising a gearbox, the inner cavity of the gearbox is equipped with a rotatable driven wheel and a driving wheel, the diameter of the driven wheel is larger than the diameter of the driving wheel, the driven wheel and the driving wheel are meshed with each other, an oil cylinder is installed at the top of the gearbox corresponding to the driven wheel, the opening of the oil cylinder is closed by a sealer, the sealer is slidably installed inside a first support member, and can be reset by a resetter, the sealer is connected to an electric push rod, the output end of the electric push rod passes through the second support member and is connected to a third support member, and the second support member is connected to one end of the driven wheel through a driving assembly.

[0006] Preferably, the oil cylinder comprises a cylinder body and a cover body, the cylinder body is located above the driven wheel, and the top end of the cylinder body is threadedly connected to the cover body.

[0007] Preferably, the closure device includes a closing portion and a sliding portion, the cross-section of the closing portion is a T-shaped structural member, the longitudinal end of which is inserted along the opening at the bottom of the cylinder body and passes through the cover body to be connected to the sliding portion, the sliding portion is slidably installed inside the first support member and is connected to the resetter.

[0008] Preferably, the resetter includes a telescopic rod and a spring, the bottom of the sliding part is connected to the telescopic rod, the spring is sleeved on the outside of the telescopic rod, and the other end of the sliding part is connected to the gear box.

[0009] Preferably, the driving assembly includes a first connecting rod, a second connecting rod and a turntable, the first connecting rod is hinged on one side of the second support member, the first connecting rod is slidably installed in a sliding seat installed on one side of the gear box, the other end of the first connecting rod is hinged to the second connecting rod, the second connecting rod is eccentrically hinged to one side of the turntable, and the turntable is connected to one end of the driven wheel.

[0010] Preferably, an oil drain port is provided on one side of the bottom of the gear box.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The utility model drives the second support member to move through the driving component, and the second support member pulls the third support member, cooperates with the electric push rod to drive the sealer to move, so that the oil cylinder opening can be opened and closed, so that the lubricating oil inside the oil cylinder can drip onto the driven wheel, and the driven wheel and the driving wheel are lubricated as they rotate. Through the extension and retraction of the electric push rod, the third support member can be pushed downward, and the moving distance of the second support member pulling the third support member can be changed, thereby changing the opening and closing time of the oil cylinder, and the oil output can be controlled. Compared with the prior art, the amount of lubricating oil used is reduced to achieve the purpose of reducing costs.

[0013] 2. In the utility model, since the diameter of the driven wheel is larger than that of the driving wheel, the rotation speed of the driven wheel will be lower than that of the driving wheel, reducing the running speed of the driving assembly, thereby delaying the speed of releasing the lubricating oil. The driven wheel drives the turntable to rotate, driving the second connecting rod eccentrically hinged therewith, pulling the first connecting rod to slide along the slide seat, driving the second support member to reciprocate downward, thereby pulling the third support member and the electric push rod, driving the sliding part to slide along the first support member, making the closing part repeatedly extend from the opening of the cylinder body, realizing oil discharge, and when the sliding part is lowered, it will drive the spring and the telescopic rod to contract, and when the spring is reset, Pushing the sliding part drives the closing part to reset, so as to block the opening of the oil cylinder and not easily cause leakage. Since the stroke length of the reciprocating motion is fixed, the third support member is pushed down by extending and retracting the electric push rod, and the distance that the second support member pulls the third support member to move is changed, so as to adjust the lowering distance of the sliding part and the extended length of the closing part. The different extended lengths indicate that the time required for its reset is also different, so as to control the opening and closing time of the oil cylinder, and then control the output of lubricating oil, which is helpful to save lubricating oil. The dripping lubricating oil can be discharged through the oil drain port. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a side sectional view of the overall structure of the utility model;

[0015] Figure 2 It is an enlarged view of structure A of the utility model;

[0016] Figure 3 It is a front view of the overall structure of the utility model;

[0017] Figure 4 It is a rear cross-sectional view of the overall structure of the utility model;

[0018] Figure 5 It is a rear view of the overall structure of the utility model.

[0019] In the figure: 1, gear box, 2, driven wheel, 3, driving wheel, 4, oil cylinder, 5, sealer, 6, first support member, 7, electric push rod, 8, second support member, 9, sealing part, 10, sliding part, 11, telescopic rod, 12, spring, 13, first connecting rod, 14, second connecting rod, 15, turntable, 16, cylinder, 17, cover, 18, oil drain port, 19, slide seat, 20, third support member. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Embodiment 1

[0022] Please refer to Figure 1-5 As shown, the utility model provides a wind turbine gearbox gear lubrication device, including a gearbox 1, an inner cavity of the gearbox 1 is installed with a rotatable driven wheel 2 and a driving wheel 3, the diameter of the driven wheel 2 is larger than the diameter of the driving wheel 3, the driven wheel 2 and the driving wheel 3 are meshed with each other, an oil cylinder 4 is installed at the top of the gearbox 1 corresponding to the driven wheel 2, the opening of the oil cylinder 4 is closed by a sealer 5, the sealer 5 is slidably installed inside a first support member 6, and can be reset by a resetter, the sealer 5 is connected to an electric push rod 7, the output end of the electric push rod 7 passes through a second support member 8 and is connected to a third support member 20, and the second support member 8 is connected to one end of the driven wheel 2 through a driving assembly.

[0023] In this embodiment, the driving wheel 3 is connected to components such as wind turbine blades. When the driving wheel 3 rotates, it drives the driven wheel 2 meshed with it to rotate. Since the diameter of the driven wheel 2 is larger than the diameter of the driving wheel 3, the rotation speed of the driven wheel 2 will be smaller than that of the driving wheel 3, reducing the running speed of the driving component, thereby delaying the speed of releasing the lubricating oil. The second support member 8 is driven by the driving component to move, and the second support member 8 pulls the third support member 20. In cooperation with the electric push rod 7, the sealer 5 is driven to move, and the opening of the oil barrel 4 can be opened and closed, so that the lubricating oil inside the oil barrel 4 can drip onto the driven wheel 2, and the driven wheel 2 and the driving wheel 3 are lubricated as they rotate. By extending and retracting the electric push rod 7, the third support member 20 can be pushed down, and the moving distance of the second support member 8 pulling the third support member 20 can be changed, thereby changing the opening and closing time of the oil barrel 4, and the oil output can be controlled. Compared with the prior art, lubrication can be carried out in a targeted manner, and the amount of lubricating oil used can be reduced to achieve the purpose of reducing costs.

[0024] Please refer to Figure 1-5 As shown, the oil cylinder 4 includes a cylinder 16 and a cover 17. The cylinder 16 is located above the driven wheel 2. The top of the cylinder 16 is threadedly connected to the cover 17. The closure 5 includes a closure portion 9 and a sliding portion 10. The cross section of the closure portion 9 is a T-shaped structural member, and its longitudinal end is inserted along the opening at the bottom of the cylinder 16, and passes through the cover 17 to connect with the sliding portion 10. The sliding portion 10 is slidably installed inside the first support member 6 and is connected to the resetter. The resetter includes a telescopic rod 11 and a spring 12. The bottom of the sliding portion 10 is connected to the telescopic rod 11. A spring 12 is sleeved on the outside of the retracted rod 11, and the other end of the sliding part 10 is connected to the gear box 1. The driving assembly includes a first connecting rod 13, a second connecting rod 14 and a turntable 15. The first connecting rod 13 is hinged on one side of the second support member 8, and the first connecting rod 13 is slidably installed in a slide seat 19 installed on one side of the gear box 1. The other end of the first connecting rod 13 is hinged to the second connecting rod 14, and the second connecting rod 14 is eccentrically hinged to one side of the turntable 15. The turntable 15 is connected to one end of the driven wheel 2, and an oil drain port 18 is provided on one side of the bottom of the gear box 1.

[0025] In this embodiment, the driven wheel 2 drives the turntable 15 to rotate, drives the second connecting rod 14 eccentrically hinged therewith, pulls the first connecting rod 13 to slide along the slide seat 19, drives the second support member 8 to slide back and forth along the slide groove of the first support member 6, thereby pulling the third support member 20 and the electric push rod 7, drives the sliding part 10 to slide along the first support member 6, and makes the closing part 9 repeatedly extend from the opening of the cylinder 16 to achieve oil discharge. When the sliding part 10 is lowered, it drives the spring 12 and the telescopic rod 11 to contract. When the spring 12 is reset, it pushes the sliding part 10 to drive the closing part 9 to reset, which can be The opening of the oil cylinder 4 is sealed to prevent leakage. Since the stroke length of the reciprocating motion is fixed, the third support member 20 is pushed down by extending and retracting the electric push rod 7. The distance that the second support member 8 pulls the third support member 20 to move is changed, so the lowering distance of the sliding part 10 can be adjusted, and the extended length of the closing part 9 can be adjusted. The different extended lengths indicate that the time required for its reset is also different, so that the opening and closing time of the oil cylinder 4 is controlled, and then the output of the lubricating oil is controlled, which helps to save the lubricating oil. The dripping lubricating oil can be discharged through the oil drain port 18.

[0026] Working principle: First, the fan blade drives the driving wheel 3 to rotate, drives the driven wheel 2 meshing with it to rotate, drives the turntable 15 to rotate through the driven wheel 2, drives the second connecting rod 14 eccentrically hinged with it, pulls the first connecting rod 13 to slide along the slide seat 19, drives the second support member 8 to slide back and forth along the slide groove of the first support member 6, thereby pulling the third support member 20 and the electric push rod 7, drives the sliding part 10 to slide along the first support member 6, and makes the closing part 9 repeatedly extend from the opening of the cylinder 16 to achieve oil discharge. When the sliding part 10 is lowered, it will drive the spring 12 and the telescopic rod 11 to contract. When the spring 12 is reset, it pushes the sliding part 1 0 drives the sealing part 9 to reset, so as to block the opening of the oil cylinder 4 and prevent leakage. Since the stroke length of the reciprocating motion is fixed, the third support member 20 is pushed down by the extension and contraction of the electric push rod 7, and the distance that the second support member 8 pulls the third support member 20 to move is changed, so as to adjust the lowering distance of the sliding part 10 and the extended length of the sealing part 9. The different extended lengths indicate that the time required for its reset is also different, so as to control the opening and closing time of the oil cylinder 4, and then control the output of the lubricating oil, which is helpful to save the lubricating oil. The dripping lubricating oil can be discharged through the oil discharge port 18.

[0027] The contents not described in detail in this specification belong to the prior art known to professionals in this field.

[0028] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A wind turbine gearbox gear lubrication device, comprising a gearbox (1), characterized in that: The inner cavity of the gear box (1) is provided with a rotatable driven wheel (2) and a driving wheel (3). The diameter of the driven wheel (2) is larger than that of the driving wheel (3). The driven wheel (2) and the driving wheel (3) are meshed with each other. An oil cylinder (4) is provided at the top end of the gear box (1) corresponding to the driven wheel (2). The opening of the oil cylinder (4) is closed by a sealer (5). The sealer (5) is slidably installed inside a first support member (6) and can be reset by a resetter. The sealer (5) is connected to an electric push rod (7). The output end of the electric push rod (7) passes through a second support member (8) and is connected to a third support member (20). The second support member (8) is connected to one end of the driven wheel (2) through a driving assembly.

2. A wind turbine gearbox gear lubrication device according to claim 1, characterized in that: The oil cylinder (4) comprises a cylinder body (16) and a cover body (17); the cylinder body (16) is located above the driven wheel (2); and the top end of the cylinder body (16) is threadedly connected to the cover body (17).

3. A wind turbine gearbox gear lubrication device according to claim 2, characterized in that: The closure device (5) comprises a closure portion (9) and a sliding portion (10); the cross section of the closure portion (9) is a T-shaped structural member, the longitudinal end of which is inserted along the opening at the bottom of the cylinder (16) and passes through the cover body (17) to be connected to the sliding portion (10); the sliding portion (10) is slidably mounted inside the first support member (6) and is connected to the resetter.

4. A wind turbine gearbox gear lubrication device according to claim 3, characterized in that: The resetter comprises a telescopic rod (11) and a spring (12); the bottom of the sliding part (10) is connected to the telescopic rod (11); the spring (12) is sleeved on the outside of the telescopic rod (11); and the other end of the sliding part (10) is connected to the gear box (1).

5. The wind turbine gearbox gear lubrication device according to claim 1, characterized in that: The driving assembly comprises a first connecting rod (13), a second connecting rod (14) and a rotating disk (15); one side of the second supporting member (8) is hinged with the first connecting rod (13); the first connecting rod (13) is slidably mounted in a sliding seat (19) mounted on one side of the gear box (1); the other end of the first connecting rod (13) is hinged to the second connecting rod (14); the second connecting rod (14) is eccentrically hinged to one side of the rotating disk (15); and the rotating disk (15) is connected to one end of the driven wheel (2).

6. A wind turbine gearbox gear lubrication device according to claim 1, characterized in that: An oil drain port (18) is provided on one side of the bottom of the gear box (1).

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