Self-sealing type lubricating device for fan bearing pedestal and lubricating method thereof

Abstract

The application discloses a self-sealing type fan bearing seat lubricating device and a lubricating method thereof, and relates to the field of fan bearing seats.The self-sealing type fan bearing seat lubricating device comprises a bearing seat body, the inner side of the upper end of the bearing seat body is provided with an accumulation cavity, the upper end of the accumulation cavity is connected with a supply pipeline for supply work, the outer side of the bearing seat body is provided with a reserved transmission pipeline, the upper middle end of the bearing seat body is provided with a supply pipe, and the supply pipe is connected with the inner side of the accumulation cavity.The self-sealing type fan bearing seat lubricating device and the lubricating method thereof are characterized in that the liquid accumulated in the accumulation cavity is discharged downward through the supply pipe in the open and closed state, the high heat accumulated in the traditional internal closed mounting structure during long-term high-speed rotation cannot be periodically and self-adaptively discharged, and thus the self-adaptive lubricating treatment is effectively carried out without manual shutdown operation.

Description

Technical Field

[0001] This invention relates to the field of wind turbine bearing housing technology, specifically to a self-sealing wind turbine bearing housing lubrication device and its lubrication method. Background Technology

[0002] As a fundamental component for the operation of a wind turbine, the quality of its bearing housing determines the overall operational quality of the wind turbine in the later stages. For example, patent CN110821874B discloses a self-lubricating bearing housing for a fan, relating to the field of bearing housing technology. The housing includes a hydraulic device, a bearing housing, a bearing assembly, a first oil seal, a second oil seal, a lubrication mechanism, and a fan. The bearing assembly is composed of several bearing units stacked from bottom to top. The separate bearing assembly allows for gaps between the contact surfaces of each bearing unit. This not only allows for the storage of hydraulic oil, facilitating timely lubrication when the bearing unit does not receive sufficient hydraulic oil, but also allows the hydraulic oil to be agitated during its entry into the bearing assembly. The rotation of the connecting shaft agitates the hydraulic oil within these gaps, providing strong kinetic energy and enabling it to quickly and fully fill the gaps in the bearing unit for timely lubrication, thus preventing damage to the bearing housing. For example, patent CN110145547B discloses a self-lubricating device and lubrication method for a fan bearing housing, including a bearing housing and a hydraulic motor. The bearing housing has a bearing cavity, and the bottom end face of the hydraulic motor end cover is connected to the bearing cavity. An oil discharge port is provided on the top side wall of the bearing cavity. A first oil seal and a second oil seal are provided in the bearing cavity, and a lubricating oil cavity is provided between the first oil seal and the second oil seal. A connecting shaft is provided in the bearing housing, and the connecting shaft passes through the bearing housing and is connected to an impeller. An oil cup is fixedly provided on one side of the bearing housing, and an oil inlet pipe communicating with the oil inlet cavity is provided at the bottom of the oil cup. The bearing housing is lubricated by the hydraulic oil leaking from the hydraulic motor. Therefore, there is no need to add lubricating oil to the bearing. At the same time, the oil cup automatically replenishes the lubricating oil to the oil inlet cavity, lubricating the bearing and the oil seal, reducing the wear of the shaft on the bearing. For example, patent CN222615646U discloses a self-lubricating bearing housing for a fan, which includes a bearing housing and an oil reservoir. The bearing housing has a bearing and a mounting journal for mounting the bearing at each end. An end cap is connected to each mounting journal facing outwards; the end caps are annular and shield the bearing. The fan main shaft is movably mounted on the bearing housing via two bearings. The bearing housing is symmetrically divided into an upper mounting seat and a lower mounting seat along its central axis. An oil inlet is opened on one side of the lower mounting seat, and the oil reservoir is connected to the oil inlet via an oil pipe. A partition plate is installed inside the oil reservoir, dividing it into a connecting cavity and an oil storage cavity. Self-lubrication of the bearing housing is achieved through the oil reservoir located on one side of the bearing housing, an oil circuit switching device located inside the oil reservoir, and a solenoid valve at the top of the oil tank. Most of the aforementioned existing technologies improve the overall structure. However, the existing fan bearing housings are mostly enclosed installation structures during operation. During long-term high-speed rotation and load-bearing, the high heat stored inside cannot be periodically and adaptively discharged, and effective adaptive lubrication cannot be performed. Users need to manually stop the machine, which limits its use. Summary of the Invention

[0003] The purpose of this invention is to provide a self-sealing fan bearing housing lubrication device and lubrication method, in order to solve the problem mentioned in the background art that the internal structure is mostly closed, and during long-term high-speed rotation and load bearing, the high heat stored inside cannot be periodically and adaptively discharged, and at the same time, it cannot effectively perform adaptive lubrication treatment, requiring the user to manually stop the machine.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a self-sealing fan bearing housing lubrication device and lubrication method thereof, comprising a bearing housing body, wherein a storage cavity is provided on the inner side of the upper end of the bearing housing body, and a supply pipe is connected to the upper end of the storage cavity for supplying oil; a reserved transmission pipe is provided on the outer side of the bearing housing body, and a supply pipe is provided through the middle of the upper part of the bearing housing body, and the supply pipe is connected to the inner side of the storage cavity; an adaptive supply guiding structure is provided on the inner side of the bearing housing body, and the oil stored in the storage cavity is self-supplyed through the adaptive supply guiding structure.

[0005] Furthermore, the adaptive supply guiding structure is provided with a bonding sealing layer, which is bonded to the upper end of the inner wall of the supply pipe. A preset slide is provided on the inner side of the supply pipe, and a vertically heated corrugated airbag is bonded to the inside of the slide. The upper end of the vertically heated corrugated airbag is connected to a guide contact member, which is located on the inner side of the supply pipe. At the same time, the upper end of the guide contact member corresponds to the middle position of the bonding sealing layer.

[0006] Furthermore, a docking movable component is nested on the inner wall of the supply pipe, and a second steel wire rope is docked at the lower end of the docking movable component, and the second steel wire rope passes through the upper interior of the bearing housing body.

[0007] Furthermore, a transverse sealing layer is nested inside the supply pipe, and the transverse sealing layer is connected to the end of the second steel wire rope. A return spring is fixedly connected to the inner side of the transverse sealing layer, and the return spring is connected to the inner wall of the bearing seat body.

[0008] Furthermore, the vertically heated corrugated airbag expands vertically when heated, and the vertically heated corrugated airbag pushes the upper guide contact member to move upward to contact the sealing layer for opening and closing, and the liquid stored inside the storage cavity is discharged downward through the supply pipe in the open and closed state.

[0009] Furthermore, when the guide contact member is displaced to contact the docking movable member, the compressed guide contact member moves along the inner wall of the supply pipe, and the guide contact member drives the transverse sealing layer to form a transverse movement through the second steel wire rope, and the transverse sealing layer forms an elastic structure along the inner wall of the bearing seat body through the return spring.

[0010] Furthermore, an auxiliary ventilation structure is provided on the inner side of the upper end of the bearing housing body. The auxiliary ventilation structure adaptively controls the overall heat conduction state of the bearing housing body. The auxiliary ventilation structure is provided with a first steel wire rope, and the outer side of the first steel wire rope is connected to the lower end of the guide contact member. The first steel wire rope passes through the upper inner wall of the bearing housing body. A sealing connection member is connected through the inner side of the reserved transmission pipe, and the outer side of the sealing connection member is connected to the end of the first steel wire rope.

[0011] Furthermore, as the guiding contact member moves upward along the inner wall of the supply pipe under force, the first steel wire rope drives the sealing connection member to simultaneously form a traction operation, and the sealing connection member forms a sliding sealing structure along the inner side of the reserved transmission pipe.

[0012] A self-sealing fan bearing housing lubrication device is disclosed, along with a lubrication method for the device, specifically including the following steps: S1: The vertically heated corrugated airbag inside the bearing housing will continue to expand vertically as the internal temperature of the equipment rises. This causes the vertically deformed corrugated airbag to push the upper guide contact piece upward to contact the sealing layer, thereby allowing the liquid stored inside the storage cavity to be discharged downward through the open and closed supply pipe. S2: The outer side of the guide contacting part will then come into contact with the docking moving part, and the second steel wire rope will drive the transverse sealing layer to move laterally along the inner side of the supply pipe, allowing the supply pipe to store a certain amount of oil after the sealing layer is opened and closed. S3: The first steel wire rope guiding the contact parts will be stressed, thereby driving the sealing parts to perform synchronous traction work, allowing the sealing parts to form a sliding seal along the inner side of the reserved transmission pipe, so that the reserved transmission pipe in the closed state can be automatically connected, thereby providing ventilation and heat dissipation treatment for the bearing housing body in the high-heat state.

[0013] Compared with the prior art, the beneficial effects of the present invention are: This self-sealing fan bearing housing lubrication device and its lubrication method are equipped with an adaptive supply guide structure. The adaptive supply guide structure provides self-supply of oil stored in the storage chamber. During the high-speed, long-term rotation of the bearing inside the bearing housing, the vertically heated corrugated airbag inside will continuously expand vertically as the internal temperature of the equipment rises. This vertically deformed corrugated airbag pushes the upper guide contact member upward to contact the sealing layer. The rubber sealing layer that is in contact with each other is compressed and deformed upward, thus changing from a closed state to an open state. The liquid stored inside the storage chamber is discharged downward through the supply pipe in the open state. This avoids the problem that the high heat stored inside the traditional internally closed installation structure cannot be periodically and adaptively discharged during long-term high-speed rotation and bearing. This effectively provides adaptive lubrication without the need for manual shutdown by the user. Furthermore, as the guide contact element continues to move upward under force, the outer side of the guide contact element will come into contact with the docking movable element, causing the docking movable element to move upward under force simultaneously. This, in turn, drives the transverse sealing layer to move laterally along the inner side of the supply pipe via the second steel wire rope. This allows the metered amount of oil stored inside the supply pipe after the sealing layer is opened and closed to be supplied adaptively through the connected supply pipe, improving the practicality of the device. Furthermore, an auxiliary ventilation structure is provided. This structure adaptively controls the overall heat conduction state of the bearing housing. During the oil supply and maintenance process inside the equipment due to high heat, the first steel wire rope connected to the guide contact component will be stressed, thereby driving the sealing connection component to perform synchronous traction. This allows the sealing connection component to form a sliding seal along the inner side of the reserved transmission pipe, thus enabling the reserved transmission pipe in a closed state to adaptively connect. This allows for ventilation and self-heating treatment of the bearing housing in a high-heat state, preventing damage to the inside of the equipment. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the half-section three-dimensional structure of the present invention; Figure 3 This is a schematic diagram of the three-dimensional structure of the bonding sealing layer of the present invention; Figure 4 This is a schematic diagram of the three-dimensional structure of the storage cavity of the present invention; Figure 5 For the present invention Figure 4 A magnified schematic diagram of the central part of the structure; Figure 6 This is a three-dimensional structural diagram of the guide contact element of the present invention; Figure 7 This is a schematic diagram of the three-dimensional structure of the second steel wire rope of the present invention; Figure 8 This is a schematic diagram of the three-dimensional structure of the first steel wire rope of the present invention.

[0015] In the diagram: 1. Bearing housing body; 2. Storage cavity; 3. Reserved transmission pipe; 4. Supply pipe; 5. Fitting sealing layer; 6. Vertical heated corrugated airbag; 7. Guide contact element; 8. First steel wire rope; 9. Sealing docking element; 10. Dock moving element; 11. Second steel wire rope; 12. Horizontal sealing layer; 13. Return spring. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] Example 1: Please refer to Figures 1-8 The present invention provides the following technical solution: a self-sealing fan bearing housing lubrication device and lubrication method thereof, wherein a storage cavity 2 is provided on the upper inner side of the bearing housing body 1, and a supply pipe is connected to the upper end of the storage cavity 2 for supply operation; a reserved transmission pipe 3 is provided on the outer side of the bearing housing body 1, and a supply pipe 4 is provided through the upper middle part of the bearing housing body 1, and the supply pipe 4 is connected to the inner side of the storage cavity 2; an adaptive supply guiding structure is provided on the inner side of the bearing housing body 1, and the oil stored in the storage cavity 2 is self-supplyed through the adaptive supply guiding structure.

[0018] The adaptive supply guiding structure is provided with a fitting sealing layer 5, which is fitted and connected to the upper end of the inner wall of the supply pipe 4. A preset slide is provided on the inner side of the supply pipe 4, and a vertically heated corrugated airbag 6 is bonded and connected inside the slide. The upper end of the vertically heated corrugated airbag 6 is connected to a guide contact 7, which is located on the inner side of the supply pipe 4. The upper end of the guide contact 7 corresponds to the middle end of the fitting sealing layer 5. A docking movable part 10 is nested and installed on the inner wall of the supply pipe 4, and the lower end of the docking movable part 10 is connected to... A second steel wire rope 11 is connected and passes through the upper end of the bearing housing body 1. A transverse sealing layer 12 is nested inside the supply pipe 4, and the transverse sealing layer 12 is connected to the end of the second steel wire rope 11. A return spring 13 is fixedly connected to the inner side of the transverse sealing layer 12, and the return spring 13 is connected to the inner wall of the bearing housing body 1. The vertically heated corrugated airbag 6 expands vertically when heated, and the vertically heated corrugated airbag 6 pushes the upper guide contact 7 to move upward to contact and open with the sealing layer 5, and stores... The liquid stored inside the storage cavity 2 is discharged downward through the open supply pipe 4. When the guide contact 7 moves to contact the docking movable part 10, the pressurized guide contact 7 moves along the inner wall of the supply pipe 4. The guide contact 7 drives the transverse sealing layer 12 to move laterally through the second steel wire rope 11. The transverse sealing layer 12 forms an elastic structure along the inner wall of the bearing housing body 1 through the return spring 13. During the high-speed long-term rotation of the bearing inside the bearing housing body 1, the vertical heated corrugated airbag 6 inside it will move with the temperature inside the equipment. The continuous vertical expansion due to the increase in temperature causes the vertically deformed, heated corrugated airbag 6 to push the upper guide contact 7 upwards to contact the sealing layer 5. This causes the rubber sealing layer 5, which is in contact with each other, to deform upwards under pressure, thus changing from a closed state to an open state. The liquid stored inside the storage cavity 2 is then discharged downwards through the open supply pipe 4, avoiding the inability of traditional internally closed installation structures to periodically and adaptively release the high heat stored inside during long-term high-speed rotation and load-bearing, thereby effectively performing adaptive lubrication.

[0019] Example 2: Based on Example 1, an auxiliary ventilation structure is also disclosed, the specific structure of which is as follows: An auxiliary ventilation structure is provided on the inner side of the upper end of the bearing housing body 1. The overall heat conduction state of the bearing housing body 1 is adaptively controlled through the auxiliary ventilation structure. The auxiliary ventilation structure is equipped with a first steel wire rope 8, the outer side of which is connected to the lower end of the guide contact member 7. The first steel wire rope 8 passes through the upper inner wall of the bearing housing body 1, and a sealing connection member 9 is connected through the inner side of the reserved transmission pipe 3. The outer side of the sealing connection member 9 is connected to the end of the first steel wire rope 8. As the guide contact member 7 moves upward along the inner wall of the supply pipe 4 under force, the first steel wire rope 8 drives the sealing connection member 9 to form a synchronous traction operation. The sealing connection member 9 forms a sliding seal structure along the inner side of the reserved transmission pipe 3. During the oil supply and maintenance process inside the equipment due to high heat, the first steel wire rope 8 connected to the guide contact member 7 will be stressed, thereby driving the sealing connection member 9 to perform synchronous traction operation, allowing the sealing connection member 9 to form a sliding seal along the inner side of the reserved transmission pipe 3. This allows the reserved transmission pipe 3, which is in a closed state, to be automatically connected, thereby providing ventilation and self-heating treatment for the bearing housing body 1 in a high-heat state.

[0020] Example 3: Based on Examples 1 and 2, a lubrication method for the lubrication device is also disclosed, specifically including the following steps: S1: The vertically heated corrugated airbag 6 inside the bearing housing body 1 will continue to expand vertically as the internal temperature of the equipment rises, thereby causing the vertically deformed vertically heated corrugated airbag 6 to push the upper guide contact 7 to move upward to contact the sealing layer 5, so that the liquid stored inside the storage cavity 2 is discharged downward through the open and closed supply pipe 4. S2: The outer side of the guide contact 7 will then come into contact with the docking movable part 10, and the transverse sealing layer 12 will move laterally along the inner side of the supply pipe 4 via the second steel wire rope 11, allowing the supply pipe 4 to store a certain amount of oil after the sealing layer 5 is opened and closed. S3: The first steel wire rope 8 guiding the contacting part 7 to dock will be stressed, thereby driving the sealing docking part 9 to perform synchronous traction work, so that the sealing docking part 9 forms a sliding seal along the inner side of the reserved transmission pipe 3, thereby enabling the reserved transmission pipe 3 in the closed state to be automatically connected, thereby providing ventilation and heat dissipation treatment for the bearing housing body 1 in the high-heat state.

[0021] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0022] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A self-sealing fan bearing housing lubrication device, comprising a bearing housing body (1), wherein a storage cavity (2) is provided on the inner side of the upper end of the bearing housing body (1), and a supply pipe is connected to the upper end of the storage cavity (2) for supplying. Its features are: The bearing housing body (1) has a reserved transmission pipe (3) on its outer side, and a supply pipe (4) is provided through the middle of the upper part of the bearing housing body (1). The supply pipe (4) is connected to the inner side of the storage cavity (2). The inner side of the bearing housing body (1) is provided with an adaptive supply guidance structure, which is used to self-supply the oil stored in the storage cavity (2).

2. The self-sealing fan bearing housing lubrication device according to claim 1, characterized in that: The adaptive supply guiding structure is provided with a fitting sealing layer (5), and the fitting sealing layer (5) is fitted and connected to the upper end of the inner wall of the supply pipe (4). A preset slide is opened on the inner side of the supply pipe (4), and a vertical heated corrugated airbag (6) is bonded and connected inside the slide. The upper end of the vertical heated corrugated airbag (6) is connected to a guide contact (7), and the guide contact (7) is located on the inner side of the supply pipe (4). At the same time, the upper end of the guide contact (7) corresponds to the middle position of the fitting sealing layer (5).

3. The self-sealing fan bearing housing lubrication device according to claim 2, characterized in that: The inner wall of the supply pipe (4) is fitted with a docking movable part (10), and the lower end of the docking movable part (10) is connected to a second steel wire rope (11), and the second steel wire rope (11) passes through the upper end of the bearing seat body (1).

4. The self-sealing fan bearing housing lubrication device according to claim 3, characterized in that: A transverse sealing layer (12) is nested inside the supply pipe (4), and the transverse sealing layer (12) is connected to the end of the second wire rope (11). A reset spring (13) is fixedly connected inside the transverse sealing layer (12), and the reset spring (13) is connected to the inner wall of the bearing seat body (1).

5. The self-sealing fan bearing housing lubrication device according to claim 4, characterized in that: The vertically heated corrugated airbag (6) expands vertically when heated, and the vertically heated corrugated airbag (6) pushes the upper guide contact (7) to move upward to contact the sealing layer (5) for opening and closing, and the liquid stored inside the storage cavity (2) is discharged downward through the supply pipe (4) in the open and closed state.

6. The self-sealing fan bearing housing lubrication device according to claim 5, characterized in that: When the guide contact (7) is displaced to contact the docking movable part (10), the pressurized guide contact (7) moves along the inner wall of the supply pipe (4), and the guide contact (7) drives the transverse sealing layer (12) to form transverse movement through the second steel wire rope (11), and the transverse sealing layer (12) forms an elastic structure along the inner wall of the bearing seat body (1) through the reset spring (13).

7. A self-sealing fan bearing housing lubrication device according to claim 4, characterized in that: An auxiliary ventilation structure is provided on the inner side of the upper end of the bearing housing body (1), and the overall heat conduction state of the bearing housing body (1) is adaptively controlled through the auxiliary ventilation structure. The auxiliary ventilation structure is provided with a first steel wire rope (8), and the outer side of the first steel wire rope (8) is connected to the lower end of the guide contact member (7). The first steel wire rope (8) passes through the upper inner wall of the bearing seat body (1). The inner side of the reserved transmission pipe (3) is connected to a sealing connection member (9), and the outer side of the sealing connection member (9) is connected to the end of the first steel wire rope (8).

8. A self-sealing fan bearing housing lubrication device according to claim 7, characterized in that: As the guide contact (7) moves upward along the inner wall of the supply pipe (4) under force, the first steel wire rope (8) drives the sealing dock (9) to form a traction operation simultaneously, and the sealing dock (9) forms a sliding sealing structure along the inner side of the reserved transmission pipe (3).

9. A self-sealing fan bearing housing lubrication device according to claim 8, characterized in that: The lubrication method of the lubrication device was also disclosed, which specifically includes the following steps: S1: The vertically heated corrugated airbag (6) inside the bearing housing body (1) will continue to expand vertically as the internal temperature of the equipment increases, thereby causing the vertically deformed vertically heated corrugated airbag (6) to push the upper guide contact (7) to move up to contact the sealing layer (5), thereby storing the liquid stored inside the cavity (2) and discharging it downward through the open and closed supply pipe (4); S2: The outer side of the guide contact (7) will then come into contact with the docking movable part (10), and the transverse sealing layer (12) will move laterally along the inner side of the supply pipe (4) through the second steel wire rope (11), so that the supply pipe (4) can store a certain amount of oil after the sealing layer (5) is opened and closed. S3: The first steel wire rope (8) that guides the contacting part (7) to be connected will be subjected to force, thereby driving the sealing connection part (9) to perform synchronous traction work, so that the sealing connection part (9) forms a sliding seal along the inner side of the reserved transmission pipe (3), thereby enabling the reserved transmission pipe (3) in the closed state to be connected adaptively, and then to perform ventilation and self-heating treatment on the bearing seat body (1) in the high-heat state.

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