CN216742752U - Bearing lubricating structure of wind power gear box - Google Patents
Bearing lubricating structure of wind power gear box Download PDFInfo
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- CN216742752U CN216742752U CN202121186246.4U CN202121186246U CN216742752U CN 216742752 U CN216742752 U CN 216742752U CN 202121186246 U CN202121186246 U CN 202121186246U CN 216742752 U CN216742752 U CN 216742752U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The utility model relates to the field of wind power equipment, in particular to a bearing lubricating structure of a wind power gear box. The bearing lubricating structure of the wind power gear box comprises a box body, a bearing, a planet carrier, an oil scraping assembly and an end cover, wherein the planet carrier is rotatably arranged on the box body through the bearing; the oil scraping component is arranged on the second end face and is positioned in the accommodating cavity, the oil scraping component comprises an oil scraping piece, and the oil scraping piece can collect oil from the first end face and enable the oil to flow into the bearing when the planet carrier rotates; the end cover is connected with the end face of the box body deviating from the second end face, and the planet carrier part extends out of the end cover. On one hand, the utility model can be suitable for gear boxes under various rotating speeds by taking oil in a scraping way, and can also effectively control the oil taking quantity; on the other hand is because the axis of rotation of planet carrier is fixed for the frizing piece can get oil from the pivoted planet carrier, and applicable in various gear structures guarantees the lubricated effect of bearing when the gear box is in idle running operating mode.
Description
Technical Field
The utility model relates to the field of wind power equipment, in particular to a bearing lubricating structure of a wind power gear box.
Background
At present, the wind power gear box depends on forced lubrication (namely, a motor pump supplies oil to a bearing) to lubricate the bearing of a planet carrier in a working state, and when the wind power gear box is in an idling working state, the motor pump does not operate in order to reduce the loss of electric energy, so that the gear of the bearing in the gear box cannot be lubricated when rotating or swinging.
To this kind of condition, current lubricating structure mainly divide into two kinds, and the first kind is to install the oil collecting box on the planet frame and connect the food tray to stir the fluid of fluid intracavity when making gear revolve, and then makes fluid can pour into the oil collecting box and flow to the bearing in through the drainage groove that connects on the food tray to prolong the bearing life in the gear box. The second is to arrange a scraper to take oil from the end face of the rotating gear piece to lubricate the bearing. In the former, the wind speed influences the rotating speed and direction of the gear during idling so as to influence the oil taking amount, and the lubricating effect of the bearing cannot be ensured; the latter mainly aims at the parallel shaft gear transmission, and when the planetary gear of the wind power gear box is in transmission, because a gear ring is static relative to the liquid level of lubricating oil, a sun gear cannot contact the liquid level of the lubricating oil, and besides, a planetary gear rotates and also revolves (namely, the rotation axis of the planetary gear is indefinite), so that the end face of a gear part cannot be scraped.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a bearing lubricating structure of a wind power gearbox, which can be suitable for gearboxes at various rotating speeds by taking oil in an oil scraping mode and can effectively control the oil taking capacity; on the other hand is because the axis of rotation of planet carrier is fixed for the frizing subassembly can be followed the pivoted planet carrier and got oil, and applicable in various gear structure guarantees the lubricated effect of bearing when the gear box is in idle running mode.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a bearing lubricating structure of a wind power gear box comprises a box body, a bearing, a planet carrier, an oil scraping assembly and an end cover, wherein the planet carrier is rotatably arranged on the box body through the bearing, and a containing cavity is formed by a first end surface of the planet carrier and a second end surface of the box body; the oil scraping assembly is arranged on the second end face and is positioned in the accommodating cavity, the oil scraping assembly comprises an oil scraping piece, and when the planet carrier rotates, the oil scraping piece can collect oil from the first end face and enable the oil to flow into the bearing; the end cover is connected with the end face, deviating from the second end face, of the box body, and the planet carrier part extends out of the end cover.
Preferably, the oil scraping member includes a main body portion and an oil scraping portion located on one side of the main body portion, the oil scraping portion and the main body portion form an oil collecting cavity, the oil scraping portion is in contact with the oil attached to the first end surface, and when the planet carrier rotates, the oil on the first end surface is scraped by the oil scraping portion and then lubricates the bearing through the oil collecting cavity.
Preferably, the body portion includes a first plane disposed opposite to the planet carrier, and a flow guide portion located on one side of the first plane and connected to the oil scraping portion, the oil scraping portion and the flow guide portion form the oil collecting chamber, and the oil scraping portion protrudes from the first plane to contact the oil attached to the first end surface.
Preferably, the water conservancy diversion portion includes first inclined plane, transition face and the second inclined plane that connects gradually, the both ends on first inclined plane respectively with oil scraping portion with transition face arc transitional coupling.
Preferably, the oil scraping portion comprises a lip, and when the planet carrier is in direct contact with the oil scraping portion due to elastic strain in a loaded state, the lip is in arc transition connection with the first inclined surface to generate axial deformation so as to reduce abrasion caused to the oil scraping piece and scratch caused to the first end surface of the planet carrier.
Preferably, the body portion extends towards the oil collecting cavity to form an oil blocking portion, the oil blocking portion is arranged at one end, away from the oil scraping portion, of the first plane, the oil blocking portion comprises an oil blocking surface, and the oil blocking surface is perpendicular to the first plane.
Preferably, the oil scraping assembly further includes an oil collecting box disposed on the second end surface, an open cavity is disposed on the oil collecting box, an oil guiding hole located in the open cavity is disposed on the box body, the body portion further includes an oil outlet portion guiding the oil in the oil collecting cavity to the open cavity, and the oil in the oil collecting cavity flows into the bearing through the oil guiding hole after flowing to the open cavity through the oil outlet portion.
Preferably, a drainage groove along the radial direction of the bearing is formed in the end face of the box body, which is away from the second end face, and/or the end face of the end cover, which is close to the box body, the drainage groove is communicated with one end, which is away from the open cavity, of the oil guide hole, and the oil can flow into the bearing from the oil guide hole through the drainage groove.
Preferably, a drainage groove along the radial direction of the bearing is formed in the end face of the box body, which is away from the second end face, and/or the end face of the end cover, which is close to the box body, the drainage groove is communicated with one end, which is away from the open cavity, of the oil guide hole, and the oil can flow into the bearing from the oil guide hole through the drainage groove.
Preferably, the oil trap box includes:
the oil-liquid separator comprises an open end and a closed end which are oppositely arranged, wherein the oil liquid can enter from the open end and is deposited at the closed end;
the top, be located top both sides and relative first lateral part and the second lateral part that sets up, the top first lateral part and second lateral part are connected and are formed collect fluid the open mouth, the open mouth is close to the one end of frizing piece does the opening end, the open mouth is kept away from frizing piece and with the relative one end that sets up of opening end does the blind end, first lateral part with distance between the second lateral part is followed the opening end arrives the direction of blind end reduces gradually, a plurality of at least one lead the oilhole distribute in the open mouth is intracavity.
Preferably, an observation through hole is formed in an end face, away from the second end face, of the box body, so that the axial distance between the oil scraping assembly and the first end face can be judged.
Has the beneficial effects that: the utility model provides a bearing lubricating structure of a wind power gear box. When the wind power gear box is in an idle running state, the oil scraping component on the box body can take oil from the first end face of the rotating planet carrier to complete the lubrication of the bearing. Compared with an oil stirring and taking mode, the oil taking method has the advantages that the oil taking method by oil scraping can be suitable for gear boxes at various rotating speeds, and the oil taking amount can be effectively controlled; simultaneously because the axis of rotation of planet carrier is fixed for the frizing subassembly can get oil from the pivoted planet carrier, applicable in various gear structures, guarantees the lubricated effect of bearing when the gear box is in idle running operating mode.
Drawings
FIG. 1 is a schematic structural diagram of a bearing lubrication structure of a wind turbine gearbox according to an embodiment of the present invention;
FIG. 2 is a partial exploded view of a wind turbine gearbox bearing lubrication structure provided by an embodiment of the present invention from a perspective;
FIG. 3 is an exploded view of a wind power gearbox bearing lubrication structure provided by an embodiment of the present invention from another perspective;
FIG. 4 is a schematic structural diagram of an oil scraping member according to an embodiment of the present invention;
FIG. 5 is a schematic structural view of an oil scraping assembly provided in accordance with an embodiment of the present invention;
FIG. 6 is a schematic structural view of a second end face of the case provided in the embodiment of the present invention;
fig. 7 is a schematic structural diagram of the case body away from the second end face according to the embodiment of the present invention.
Wherein:
1. a box body; 11. a second end face; 12. an oil guide hole; 13. a drainage groove; 14. observing the through hole;
2. a bearing;
3. a planet carrier; 31. a first end face;
4. a scraping component;
41. a scraping member; 411. an oil scraping part; 4111. a lip;
412. a flow guide part; 4121. a first inclined plane; 4122. a transition surface; 4123. a second inclined surface;
413. an oil outlet part;
414. a body portion; 4141. a first plane; 4142; oil blocking surface;
415. an oil collecting cavity;
42. an oil collecting box; 421. opening the mouth; 422. a top portion; 423. a first side portion;
5. and (4) end covers.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative and intended to explain the present invention and should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.
Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "secured" are to be construed broadly and encompass, for example, both fixed and removable connections; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first feature being in direct contact with the second feature, and may also include the recitation of the first feature being in contact with the second feature, but rather being in contact with the additional feature between them. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The technical scheme of the utility model is further explained by the specific implementation mode in combination with the attached drawings.
As shown in fig. 1 to 3, the present embodiment provides a bearing lubrication structure of a wind power gearbox, which includes a box body 1, a bearing 2, a planet carrier 3, an oil scraping assembly 4 and an end cover 5, wherein the planet carrier 3 is rotatably mounted on the box body 1 through the bearing 2, and a first end surface 31 of the planet carrier 3 and a second end surface 11 of the box body 1 can form an accommodating cavity; the oil scraping assembly 4 is arranged on the second end surface 11 and is positioned in the accommodating cavity, the oil scraping assembly 4 comprises an oil scraping piece 41, and when the planet carrier 3 rotates, the oil scraping piece 41 can collect oil from the first end surface 31 and enable the oil to flow into the bearing 2; the end cover 5 is connected with the end surface of the box body 1 departing from the second end surface 11, and the planet carrier 3 partially extends out of the end cover 5.
When the wind power gear box is in an idle state, the oil scraping piece 41 on the box body 1 can take oil on the first end surface 31 of the rotating planet carrier 3 to finish the lubrication of the bearing 2. Compared with an oil stirring and taking mode, the oil taking method has the advantages that the oil taking method by oil scraping can be suitable for gear boxes at various rotating speeds, and the oil taking amount can be effectively controlled; simultaneously because the axis of rotation of planet carrier 3 is fixed for oil can be got from pivoted planet carrier 3 to frizing 41, applicable in various gear structures, the lubricated effect of assurance bearing 2 when the gear box is in idle running operating mode.
In addition, the end cover 5 and the box body 1 can be matched to play a role in axially sealing the bearing 2 so as to prevent oil from leaking outwards.
In order to make the overall structure of the wind power gear box as compact as possible and increase the volume of the accommodating cavity, in the present embodiment, the second end face 11 is convex in a direction away from the first end face 31.
As shown in fig. 4, in the present embodiment, the oil scraping member 41 includes a main body 414 and an oil scraping portion 411 located on one side of the main body 414, the oil scraping portion 411 and the main body 414 form an oil collecting cavity 415, the oil scraping portion 411 contacts the oil attached to the first end surface 31, and when the planet carrier 3 rotates, the oil on the first end surface 31 is scraped by the oil scraping portion 411, and then lubricates the bearing 2 through the oil collecting cavity 415.
Specifically, the body portion 414 includes a first plane 4141 disposed opposite to the carrier 3, and a flow guide portion 412 located on one side of the first plane 4141 and connected to the oil scraping portion 411, the oil scraping portion 411 and the flow guide portion 412 forming an oil collecting chamber 415, and the oil scraping portion 411 protruding from the first plane 4141 to contact the oil attached to the first end surface 31.
In addition, since the oil scraping portion 411 protrudes from the plane of the first plane 4141 of the main body portion 414, it is ensured that the oil adhered to the planet carrier 3 can be scraped only by the oil scraping portion 411, and the volume of the scraped oil is effectively controlled.
Since the oil adheres to the first end surface 31 of the carrier 3 and has a certain thickness, the oil scraper 41 does not need to abut against the first end surface 31, and the oil scraper 41 only needs to scrape the oil, that is, the oil scraper is in a non-contact manner.
Further, in order to facilitate the oil to flow from the flow guiding part 412 to the bearing 2, the flow guiding part 412 includes a first inclined surface 4121, a transition surface 4122 and a second inclined surface 4123 which are connected in sequence, and two ends of the first inclined surface 4121 are respectively in arc transition connection with the oil scraping part 411 and the transition surface 4122 of the oil scraping part 411.
Preferably, the oil scraping portion 411 includes a lip 4111, and when the planet carrier 3 is in direct contact with the oil scraping portion 411 due to elastic strain in a loaded state, the lip 4111 is in arc transition connection with the first inclined surface 4121 to generate slight axial deformation, so that abrasion to the oil scraping member 41 and scratch to the first end surface 31 of the planet carrier 3 in the case of direct contact can be reduced.
Wherein, the one side that lip 4111 deviates from water conservancy diversion portion 412 is the frizing face, and the frizing face can be the inclined plane to reduce as far as possible when wind-powered electricity generation gear box loaded state under the area of contact between lip 4111 and the planet carrier 3, when the frizing face slope promptly, lip 4111 only has one frizing limit in fact to scrape oil.
Preferably, since the oil scraping surface may be in direct contact with the first end surface 31 of the carrier 3 due to elastic strain when the carrier 3 rotates forward or backward, two lips 4111 symmetrically arranged along the body portion 414 toward the side where the oil scraping portion 411 is arranged may be disposed on the oil scraping portion 411, that is, an included angle is formed between the two lips 4111, so that the wear of the oil scraping member 41 and the scratch of the first end surface 31 of the carrier 3 due to direct contact can be reduced when the carrier 3 rotates forward or backward. Of course, in other embodiments, if the machining cost is not considered, at least two mirror-symmetric oil scraping assemblies 4 may be directly disposed to meet the oil scraping requirements of the forward rotation and the reverse rotation of the planet carrier 3, and the embodiment is not particularly limited.
Further, the main body 414 extends towards the oil collecting cavity 415 to form an oil blocking portion, the oil blocking portion is disposed at one end of the first plane 4141 far away from the oil scraping portion 411, the oil blocking portion includes an oil blocking surface 4142, and the oil blocking surface 4142 is perpendicular to the first plane 4141, that is, the scraped oil can flow from the first plane 4141 along the oil blocking surface 4142 into the second inclined surface 4123 and then flow toward the bearing 2, so as to prevent excessive oil from flowing into the bearing 2 at one time, and further affect the lubricating effect of the bearing 2.
In addition, the body 414 extends towards the oil collecting cavity 415 to form an oil blocking part, so that the first plane 4141 is L-shaped, and therefore the flow guiding surfaces for guiding the oil to flow from the first plane 4141 to the oil blocking surface 4142 are further increased, and the flow velocity of the oil on different flow guiding surfaces is different due to different areas of the oil guiding surfaces, and the control of the overall flow of the oil is improved. Of course, in other embodiments, the oil blocking portion and the body portion 414 without the oil blocking portion may form other angles than a right angle without considering the factors of convenience of processing, and the embodiment is not particularly limited.
Further, as shown in fig. 5 and 6, the oil scraping assembly 4 further includes an oil collecting box 42 disposed on the second end surface 11, an open cavity 421 is disposed on the oil collecting box 42, an oil guiding hole 12 located in the open cavity 421 is disposed on the box body 1, and the main body 414 further includes an oil outlet portion 413 for guiding the oil in the oil collecting cavity 415 to the open cavity 421, that is, the oil is scraped by the oil scraping member 41, passes through the oil collecting cavity 415, flows into the open cavity 421 through the oil outlet portion 413, and finally flows into the bearing 2 through the oil guiding hole 12. In this embodiment, the oil scraping member 41 and the oil collecting box 42 are both detachably disposed on the box body 1 by fasteners, in other embodiments, other manners may also be adopted to mount the oil scraping member 41 and the oil collecting box 42 on the box body 1, and this embodiment is not particularly limited.
In this embodiment, the oil outlet 413 is connected to the flow guide 412.
Illustratively, the oil outlet portion 413 is disposed at an end of the second inclined surface 4123 away from the transition surface 4122, and both the first inclined surface 4121 and the second inclined surface 4123 are inclined toward the oil outlet portion 413.
Illustratively, the oil guide hole 12 penetrates the bearing 2 in the axial direction, and one end of the oil guide hole 12 is disposed in the open chamber 421.
Illustratively, the fasteners are screws or bolts.
In addition, oil can be taken out only by the additionally arranged oil scraping piece 41 and the oil collecting box 42, so that compared with the prior art, a plurality of parts are reduced, and the requirement on the machining precision inside the wind power gear box is lowered.
In other embodiments, if the oil collecting efficiency is not considered, the oil scraping assembly 4 may not need the oil collecting box 42, that is, the oil scraping assembly 4 only includes the oil scraping member 41, and the oil scraping member 41 is provided with a drainage hole connected to the oil guiding hole 12, so as to realize that the oil is scraped out by the oil scraping member 41 and flows into the open cavity 421 along the drainage hole and flows into the bearing 2 through the oil guiding hole 12. Of course, the present embodiment is not limited in particular if there are other structures that can guide the oil scraped by the oil scraping member 41 to the bearing 2 for lubrication.
In this embodiment, as shown in fig. 7, in order to enable the oil to flow into the bearing 2 from the oil guide hole 12, a drainage groove 13 along the radial direction of the bearing 2 is formed on an end surface of the box body 1 away from the second end surface 11 and/or an end surface of the end cover 5 close to the box body 1, and the drainage groove 13 is communicated with one end of the oil guide hole 12 away from the open cavity 421, so that the oil can flow into the bearing 2 from the oil guide hole 12 through the drainage groove 13. In this embodiment, all offer along bearing 2 radial direction's drainage groove 13 on the terminal surface that box 1 deviates from second terminal surface 11 and end cover 5 is close to box 1's terminal surface to improve the lubricated effect of bearing 2. Of course, in other embodiments, in view of reducing the processing steps, the drainage grooves 13 along the radial direction of the bearing 2 may be formed only on the end surface of the box body 1 away from the second end surface 11 or on the end surface of the end cover 5 close to the box body 1, and this embodiment is not particularly limited.
Specifically, the oil collecting box 42 includes open end and closed end and top 422 that set up relatively, be located top 422 both sides and the first side 423 and the second side portion that set up relatively, top 422, first side 423 and second side portion are connected and are formed the open chamber 421 of collecting fluid, the one end that open chamber 421 is close to oil scraping piece 41 is the open end, open chamber 421 keeps away from oil scraping piece 41 and is the closed end with the opposite one end that sets up of open end, oil liquid can get into and deposit at the closed end from the open end, at least one leads oil hole 12 and distributes in open chamber 421.
Further, in order to facilitate the oil to flow from the oil box 42 into the oil guide hole 12 quickly, the distance between the first side portion 423 and the second side portion decreases gradually from the open end to the closed end.
Illustratively, a plurality of oil guide holes 12 are distributed in the open cavity 421 to increase the rate at which oil enters the bearing 2.
Further, an observation through hole 14 is formed in an end surface of the case 1 facing away from the second end surface 11 so as to determine an axial distance between the oil scraping assembly 4 and the first end surface 31, thereby ensuring that the oil scraping portion 411 can scrape oil on the planet carrier 3 while not contacting with the planet carrier 3, i.e., non-contact lubrication. Here, the present embodiment does not specifically limit the specific position of the observation through hole 14 on the end surface of the tank 1 away from the second end surface 11, as long as the axial gap between the oil scraping assembly 4 and the first end surface 31 can be seen through the observation through hole 14.
Preferably, in order to improve the lubrication efficiency of the bearing 2, the plurality of oil scraping assemblies 4 are arranged, and the plurality of oil scraping assemblies 4 are arranged on the second end face 11 at intervals in the circumferential direction. Of course, the oil guide hole 12 and the drainage groove 13 matched with the oil scraping assembly 4 are correspondingly provided in a plurality. The number of the observation through holes 14 is not limited in this embodiment, and it is sufficient if only one observation through hole 14 is needed to observe the axial distance between each of the plurality of oil scraping assemblies 4 and the first end surface 31.
The bearing lubricating structure process of the wind power gearbox is as follows: the planet carrier 3 rotates relative to the box body 1 through the bearing 2, the lip 4111 of the oil scraping part 411 of the oil scraping part 41 at the second end surface 11 scrapes oil from the first end surface 31 of the planet carrier 3, the oil flows into the open cavity 421 of the oil collecting box 42 from the oil outlet part 413 through the flow guide part 412 and is deposited at the closed end, and then flows out of the oil guide hole 12 and flows into the bearing 2 through the flow guide groove 13, and lubrication of the bearing 2 is completed.
The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.
Claims (10)
1. The bearing lubricating structure of the wind power gearbox is characterized by comprising a box body (1), a bearing (2), a planet carrier (3), an oil scraping assembly (4) and an end cover (5), wherein the planet carrier (3) is rotatably installed on the box body (1) through the bearing (2), and a first end surface (31) of the planet carrier (3) and a second end surface (11) of the box body (1) form an accommodating cavity; the oil scraping assembly (4) is arranged on the second end face (11) and is positioned in the accommodating cavity, the oil scraping assembly (4) comprises an oil scraping piece (41), and when the planet carrier (3) rotates, the oil scraping piece (41) can collect oil from the first end face (31) and enable the oil to flow into the bearing (2); the end cover (5) is connected with the end face, deviating from the second end face (11), of the box body (1), and the planet carrier (3) partially extends out of the end cover (5).
2. A bearing lubrication structure of a wind power gearbox according to claim 1, wherein the oil scraping member (41) includes a main body portion (414) and an oil scraping portion (411) located on one side of the main body portion (414), the oil scraping portion (411) and the main body portion (414) form an oil collecting chamber (415), the oil scraping portion (411) contacts the oil attached to the first end surface (31), and when the planet carrier (3) rotates, the oil on the first end surface (31) is scraped by the oil scraping portion (411) and then lubricates the bearing (2) through the oil collecting chamber (415).
3. A wind gear box bearing lubrication structure according to claim 2, wherein said body portion (414) includes a first plane (4141) disposed opposite to said carrier (3), and a flow guide portion (412) located at a side of said first plane (4141) and connected to said oil scraping portion (411), said oil scraping portion (411) and said flow guide portion (412) forming said oil collecting chamber (415), said oil scraping portion (411) protruding from said first plane (4141) to contact said oil attached to said first end surface (31).
4. A bearing lubrication structure of a wind power gearbox according to claim 3, characterized in that the flow guiding portion (412) comprises a first inclined surface (4121), a transition surface (4122) and a second inclined surface (4123) which are connected in sequence, and both ends of the first inclined surface (4121) are respectively in arc transition connection with the oil scraping portion (411) and the transition surface (4122).
5. A wind gear box bearing lubrication structure as claimed in claim 4, characterised in that said oil scraping portion (411) comprises a lip (4111), when said planet carrier (3) is in direct contact with said oil scraping portion (411) due to elastic strain under load, said lip (4111) is axially deformed by an arc transition with said first inclined surface (4121) to reduce the wear caused to said oil scraping member (41) and the scratch caused to said first end surface (31) of said planet carrier (3).
6. The wind gear box bearing lubrication structure according to claim 3, wherein the body portion (414) extends towards the oil collecting chamber (415) to form an oil blocking portion, the oil blocking portion is disposed at an end of the first plane (4141) far away from the oil scraping portion (411), the oil blocking portion includes an oil blocking surface (4142), and the oil blocking surface (4142) is perpendicular to the first plane (4141).
7. The wind power gearbox bearing lubricating structure according to claim 2, wherein the oil scraping assembly (4) further comprises an oil collecting box (42) arranged on the second end surface (11), an open cavity (421) is arranged on the oil collecting box (42), an oil guiding hole (12) located in the open cavity (421) is formed in the box body (1), the body portion (414) further comprises an oil outlet portion (413) for guiding the oil in the oil collecting cavity (415) to the open cavity (421), and the oil in the oil collecting cavity (415) flows into the bearing (2) through the oil guiding hole (12) after flowing to the open cavity (421) through the oil outlet portion (413).
8. The wind power gearbox bearing lubricating structure according to claim 7, characterized in that a drainage groove (13) along the radial direction of the bearing (2) is formed on the end surface of the box body (1) away from the second end surface (11) and/or the end surface of the end cover (5) close to the box body (1), the drainage groove (13) is communicated with one end of the oil guide hole (12) far away from the open cavity (421), and the oil can flow into the bearing (2) from the oil guide hole (12) through the drainage groove (13).
9. The wind gear box bearing lubrication structure according to claim 7, characterized in that the oil collection box (42) includes:
oppositely disposed open and closed ends, said oil being able to enter the open cavity (421) from said open end and deposit at said closed end;
top (422), be located top (422) both sides and relative first side (423) and the second side that sets up, top (422), first side (423) and the second side is connected and is formed collect fluid open chamber (421), open chamber (421) are close to the one end of frizing piece (41) is the open end, open chamber (421) are kept away from frizing piece (41) and with the relative one end that sets up of open end is the closed end, first side (423) with the distance between the second side is followed the open end is to the direction of closed end reduces gradually, at least one oil guide hole (12) distribute in open chamber (421).
10. A wind gear box bearing lubrication structure according to any of claims 1-9, characterized in that an observation through hole (14) is provided on the end face of the box (1) facing away from the second end face (11) in order to determine the axial distance between the oil scraping assembly (4) and the first end face (31).
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| CN202121186246.4U CN216742752U (en) | 2021-05-31 | 2021-05-31 | Bearing lubricating structure of wind power gear box |
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| CN202121186246.4U CN216742752U (en) | 2021-05-31 | 2021-05-31 | Bearing lubricating structure of wind power gear box |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113187886A (en) * | 2021-05-31 | 2021-07-30 | 南京高速齿轮制造有限公司 | Bearing lubricating structure of wind power gear box |
-
2021
- 2021-05-31 CN CN202121186246.4U patent/CN216742752U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113187886A (en) * | 2021-05-31 | 2021-07-30 | 南京高速齿轮制造有限公司 | Bearing lubricating structure of wind power gear box |
| CN113187886B (en) * | 2021-05-31 | 2024-08-06 | 南京高速齿轮制造有限公司 | Bearing lubricating structure of wind power gear box |
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