CN220353986U - Grease discharging device and wind driven generator - Google Patents

Abstract

The present disclosure relates to a grease discharging device and a wind driven generator, wherein the grease discharging device includes: the oil collecting groove is provided with a feed inlet and is used for being connected with the end cover so that the feed inlet is in butt joint with the oil discharging opening; the oil guide pipe is connected with the oil collecting groove and communicated with the inside of the oil collecting groove so as to jointly form a collecting space, and a discharge hole is formed at the end part of the oil guide pipe; the blocking cover is detachably connected to the end part of the oil guide pipe and used for blocking the discharge port; and the oil scraping assembly comprises a moving rod and a scraping plate, one end of the moving rod penetrates through the blocking cover and stretches into the collecting space, and the moving rod is used for driving the scraping plate to move in the collecting space. Through above-mentioned technical scheme, the grease discharging device that this disclosure provided can improve the convenience of clearance bearing waste oil.

Description

Grease discharging device and wind driven generator

Technical Field

The disclosure relates to the technical field of wind driven generators, in particular to a grease discharging device and a wind driven generator.

Background

The main factor of poor lubrication of the bearing of the wind turbine generator is that waste grease contains a large amount of abrasive dust and fills the inner cavity of the bearing, the bearing not only loses lubrication, but also is easy to damage due to long-term friction with deteriorated waste grease, so that the waste grease of the bearing is very urgent to clean in time.

The driving end of the fan generator is provided with a hydraulic coupler, so that the grease collecting groove is positioned in a deep and narrow space. At the non-drive end of fan generator, collect grease groove and install in the generator back cover, shelter from by the fan, receive the space restriction like the drive end, however in the correlation technique, just can clear up waste oil through dismantling album grease groove, the operation is very inconvenient, and the consuming time is longer moreover.

Disclosure of Invention

The utility model aims at providing a grease discharging device and aerogenerator, this grease discharging device can improve the convenience of clearance bearing waste oil.

In order to achieve the above-mentioned purpose, the present disclosure provides a grease discharging device for a wind-driven generator, the wind-driven generator is including setting up the end cover in the outside of bearing, the grease discharging mouth has been seted up to the lower extreme of end cover, the grease discharging device includes: the oil collecting groove is provided with a feed inlet and is used for being connected with the end cover so that the feed inlet is in butt joint with the oil discharging opening; the oil guide pipe is connected with the oil collecting groove and communicated with the inside of the oil collecting groove so as to jointly form a collecting space, and a discharge hole is formed at the end part of the oil guide pipe; the blocking cover is detachably connected to the end part of the oil guide pipe and used for blocking the discharge port; and the oil scraping assembly comprises a moving rod and a scraping plate, one end of the moving rod penetrates through the blocking cover and stretches into the collecting space, and the moving rod is used for driving the scraping plate to move in the collecting space.

Optionally, the oil scraping assembly further comprises: the piston plate is fixedly connected to the movable rod, and the shape of the piston plate is matched with the longitudinal section of the grease guide pipe, so that the edge part of the piston plate is attached to the inner wall of the grease guide pipe; the oil collecting groove is connected with the pipe wall of the oil guide pipe and forms an L-shaped collecting space together with the oil guide pipe; the movable rod is provided with a first working state and a second working state, the movable rod is connected with the scraping plate in the first working state so as to drive the scraping plate to move in the collecting space, and the movable rod is disconnected with the scraping plate in the second working state.

Optionally, the scraping plate includes a scraping portion, and a shape of the scraping portion is adapted to a longitudinal section of the grease guide pipe so that an edge portion of the scraping portion is fitted to an inner wall of the grease guide pipe.

Optionally, the scraper blade includes connecting portion, the scraping portion with connecting portion links to each other, and connecting portion's shape with collect the longitudinal section looks adaptation of grease groove, connecting portion with be provided with guide structure between the cell wall of grease groove, guide structure includes guide way and direction rib, the guide way with the direction rib is all followed the axial extension of movable rod, and one of guide way and direction rib set up in connecting portion, the guide way with another of direction rib set up in the cell wall of grease groove, the guide way with the direction rib is mutually supported, in order to guide the removal of scraper blade.

Optionally, the guide rib is inserted in the guide groove and is in limit fit with the groove wall of the guide groove so as to limit rotation of the scraper blade, an external thread is arranged at the end part of the movable rod, a threaded hole is arranged at the scraping part, and the end part of the movable rod is inserted into the threaded hole and is in threaded connection with the threaded hole.

Optionally, a clamping block is arranged at the end part of the moving rod, the scraping part is provided with a through hole, the distance between the clamping block and the piston plate is larger than or equal to the thickness of the scraping part, and in the first working state, the clamping block penetrates through the through hole and is clamped with the scraping part; in the second working state, the clamping block is separated from the through hole.

Optionally, the number of the clamping blocks is two and is configured as a bump, two of the bumps are connected to the moving rod and extend along the radial direction of the moving rod, and the through hole is shaped to pass through the bump.

Optionally, the grease discharging device comprises a sealing element, a through hole is formed in the blocking cover, and the sealing element is arranged between the moving rod and the through hole.

Optionally, the blocking cover is buckled at the end part of the oil guiding pipe and is in threaded connection with the oil guiding pipe.

According to a second aspect of the present disclosure, there is provided a wind power generator including an end cover disposed at an outer side of a bearing, a grease discharging port being provided at a lower end of the end cover, the wind power generator including the grease discharging device described above, the grease discharging device being mounted to the grease discharging port.

Through above-mentioned technical scheme, collection grease groove and lead the grease pipe are connected to the lower extreme of end cover, and the tip of leading the grease pipe is through keeping off the lid shutoff, when collection grease that gathers in collection space that collection grease groove and lead the common formation of grease pipe is more need clear up, opens the fender lid, and waste oil passes through the drive movable rod and drives the scraper blade and remove in collection space, and the scraper blade can scrape above-mentioned waste oil to the bin outlet discharge. By adopting the grease discharging device disclosed by the utility model, the grease collecting groove does not need to be disassembled, and the bearing waste grease can be cleaned only by driving the moving rod regularly, so that the operation steps of cleaning the bearing waste grease are simplified, and the convenience of cleaning the bearing waste grease is improved.

Additional features and advantages of the present disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings are included to provide a further understanding of the disclosure, and are incorporated in and constitute a part of this specification, illustrate the disclosure and together with the description serve to explain, but do not limit the disclosure. In the drawings:

fig. 1 is a schematic perspective view of a grease discharging device provided in an embodiment of the present disclosure mounted on a wind turbine;

fig. 2 is a schematic cross-sectional view of a grease discharging device provided by an embodiment of the present disclosure;

fig. 3 is an exploded view of a grease discharging device provided by an embodiment of the present disclosure.

Description of the reference numerals

1-a wind power generator; 11-end caps; 12-an oil and fat discharging port; 2-grease discharging device; 21-a grease collecting groove; 22-a grease guide pipe; 23-a blocking cover; 231-vias; 24-a grease scraping assembly; 241-a moving rod; 242-scraping plate; 2421-scraping section; 2422-a linking moiety; 2423-a through hole; 243-piston plate; 244-clamping blocks; 25-seals; 3-guiding structure; 31-a guide groove; 32-guide ribs.

Detailed Description

Specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the disclosure, are not intended to limit the disclosure.

In this disclosure, unless otherwise indicated, terms of orientation such as "inner and outer" are used with respect to the corresponding component's own outline. In addition, the terms "first," "second," and the like, as used in this disclosure, are used to distinguish one element from another element without sequence or importance. In the following description, when referring to the drawings, the same reference numerals in different drawings denote the same or similar elements unless otherwise explained. The foregoing definitions are provided for the purpose of illustrating and explaining the present disclosure and should not be construed as limiting the present disclosure.

During the operation of the wind driven generator 1, the end of the bearing generates abrasive dust due to rotational friction and is mixed with grease to form waste grease, and the waste grease cannot play a role in lubrication, but damages the bearing, so that the bearing needs to be cleaned regularly.

According to a specific embodiment of the present disclosure, referring to fig. 1 to 3, there is provided a grease discharging device 2 for a wind power generator 1, the wind power generator 1 including an end cap 11 provided at an outer side of a bearing, a grease discharging port 12 being provided at a lower end of the end cap 11, the grease discharging device 2 including: the oil collecting groove 21 is provided with a feed inlet and is used for being connected with the end cover 11 so that the feed inlet is in butt joint with the oil discharging opening 12; the oil guiding pipe 22, the oil guiding pipe 22 is connected to the oil collecting groove 21 and communicated with the inside of the oil collecting groove 21 to jointly form a collecting space, and a discharge port is arranged at the end part of the oil guiding pipe 22; a blocking cover 23, wherein the blocking cover 23 is detachably connected to the end part of the oil guiding pipe 22 and is used for blocking the discharge hole; and the grease scraping assembly 24, the grease scraping assembly 24 comprises a moving rod 241 and a scraping plate 242, one end of the moving rod 241 penetrates through the baffle cover 23 and stretches into the collecting space, and the moving rod 241 is used for driving the scraping plate 242 to move in the collecting space.

Through the above technical scheme, the lower extreme connection grease collecting tank 21 and the grease guide pipe 22 of end cover 11, the tip of grease guide pipe 22 passes through the fender lid 23 shutoff, and when the waste oil that gathers in the collection space that forms jointly grease collecting tank 21 and grease guide pipe 22 needs the clearance, open fender lid 23, drive scraper blade 242 through drive movable rod 241 and remove in the collection space, scraper blade 242 can scrape above-mentioned waste oil to the bin outlet discharge. By adopting the grease discharging device 2 disclosed by the utility model, the grease collecting groove 21 does not need to be disassembled, and the waste grease of the bearing can be cleaned only by driving the moving rod 241 regularly, so that the operation steps for cleaning the waste grease of the bearing are simplified, and the convenience for cleaning the waste grease of the bearing is improved.

In embodiments provided by the present disclosure, referring to the illustrations in fig. 2 and 3, the grease scraping assembly 24 may further include: the piston plate 243, the piston plate 243 is fixedly connected to the moving rod 241, and the shape of the piston plate 243 is adapted to the longitudinal section of the grease guide pipe 22, so that the edge part of the piston plate 243 is attached to the inner wall of the grease guide pipe 22; the grease collecting groove 21 is connected with the pipe wall of the grease guide pipe 22 and forms an L-shaped collecting space together with the grease guide pipe 22; the moving lever 241 has a first operating state in which the moving lever 241 is connected to the scraper 242 to drive the scraper 242 to move in the collecting space, and a second operating state in which the moving lever 241 is disconnected from the scraper 242.

In the above embodiment, since the grease collecting groove 21 is connected to the side wall of the grease guide pipe 22, an L-shaped collecting space is formed, when the moving rod 241 is in the first working state, the moving rod 241 is connected with the scraper 242, the moving rod 241 can drive the scraper 242 to move in the collecting space, and push the waste grease to accumulate towards the discharge port of the grease guide pipe 22, when the scraper 242 is blocked by the side wall of the grease collecting groove 21, in order to completely discharge the waste grease in the grease guide pipe 22, the moving rod 241 is switched from the first working state to the second working state, that is, the moving rod 241 is separated from the scraper 242, and the moving rod 241 continues to pull the moving rod 241 to drive the piston plate 243 to discharge the waste grease in the grease guide pipe 22. In the technical scheme of the disclosure, the grease collecting tank 21 and the grease guide pipe 22 are used together for storing waste grease, and the volume of the collecting space can be enlarged by increasing the volumes of the grease collecting tank 21 and/or the grease guide pipe 22 so as to accommodate more waste grease, thereby prolonging the interval time for cleaning the bearing waste grease.

According to the specific embodiment of the present disclosure, referring to fig. 2 and 3, the scraper 242 includes the scraping portion 2421, and the shape of the scraping portion 2421 is adapted to the longitudinal section of the grease guide pipe 22 so that the edge portion of the scraping portion 2421 is fitted to the inner wall of the grease guide pipe 22. The grease guide pipe 22 may be a circular pipe or a square pipe, and accordingly, the scraping portion 2421 has a circular or rectangular shape. In this way, it is ensured that the scraper 242 can scrape the waste oil in the oil guide pipe 22 clean, and the scraping efficiency is improved.

In the embodiment provided in the present disclosure, referring to fig. 2 and 3, the scraper 242 may further include a connection part 2422, the scraping part 2421 is connected to the connection part 2422, and the connection part 2422 is shaped to fit with the longitudinal section of the grease collecting groove 21, a guide structure 3 is provided between the connection part 2422 and the groove wall of the grease collecting groove 21, the guide structure 3 includes a guide groove 31 and a guide rib 32, the guide groove 31 and the guide rib 32 each extend in the axial direction of the moving rod 241, and one of the guide groove 31 and the guide rib 32 is provided to the connection part 2422, the other of the guide groove 31 and the guide rib 32 is provided to the groove wall of the grease collecting groove 21, and the guide groove 31 and the guide rib 32 are mutually engaged to guide the movement of the scraper 242. In the above technical solution, the guiding structure 3 can guide the scraper 242 to linearly move in the collecting space, so as to prevent the scraper 242 from toppling over during the moving process, which is beneficial to scraping the waste grease.

In the embodiment provided in the present disclosure, referring to fig. 2 and 3, the guide rib 32 is inserted into the guide groove 31 and is in limit fit with the groove wall of the guide groove 31 to limit the rotation of the scraper 242. Here, the moving lever 241 may be connected to the scraper 242 by any means, such as a snap-fit, a bolt group connection, or the like, which is not particularly limited in this application. In one embodiment, the end of the moving rod 241 is provided with an external screw thread, and the scraping portion 2421 is provided with a screw hole into which the end of the moving rod 241 is inserted and screw-coupled with the screw hole. In another embodiment, the end of the moving lever 241 may be provided with a screw hole, and the scraping portion 2421 is provided with a screw inserted into and screw-coupled with the screw hole.

In the embodiment provided in the present disclosure, referring to fig. 2 and 3, the end of the moving rod 241 may be provided with a catching block 244, the scraping portion 2421 may be provided with a through hole 2423, and a distance between the catching block 244 and the piston plate 243 is greater than or equal to a thickness of the scraping portion 2421, such that, in the first operating state, the catching block 244 is rotated circumferentially through the through hole 2423 to cause the catching block 244 to be dislocated with the through hole 2423 to be caught with the scraping portion 2421; in the second operating condition, the catch 244 is rotated circumferentially into alignment with the through hole 2423 to be able to disengage from the through hole 2423.

In the present disclosure, the number of the catching blocks 244 may be set according to actual demands, which is not particularly limited by the present disclosure. In order to improve connection reliability of the catching blocks 244 with the scraping portion 2421 in the first operation state of the moving lever 241, according to an embodiment of the present disclosure, referring to fig. 2 and 3, the catching blocks 244 may be two in number and configured as a protrusion, which is connected to the moving lever 241 and extends in a radial direction of the moving lever 241, and the through hole 2423 is shaped to pass through the protrusion. In other embodiments, the number of the snap blocks 244 may be three, four, or five, which is not limited by the present disclosure.

In the embodiment provided in the present disclosure, referring to fig. 2 and 3, the grease discharging device 2 may further include a sealing member 25, a through hole 231 is provided on the blocking cover 23, and the sealing member 25 is provided between the moving rod 241 and the through hole 231. In this way, the stopper cover 23, the grease collecting groove 21, and the grease guide pipe 22 form a closed space, so that waste grease can be prevented from leaking out of the through hole 231 of the stopper cover 23, and external dust or flying insects can be prevented from entering the collecting space. Referring to fig. 3, the sealing member 25 may be configured as a cylinder, a through hole through which the moving rod 241 passes is provided at a central axis of the cylinder, an annular clamping groove is provided at a side wall of the cylinder, and the sealing member 25 is made of rubber or silica gel, and can be clamped on the through hole 231 of the blocking cover 23 by extrusion deformation.

In the embodiment provided in the present disclosure, the blocking cover 23 may be connected to the end of the grease guide pipe 22 in any suitable manner, such as a snap fit, a screw connection, etc., which is not particularly limited in this application. In the embodiment of the present disclosure, referring to fig. 2 and 3, a blocking cover 23 is fastened to an end of the grease guide pipe 22 and is screw-coupled with the grease guide pipe 22.

On the basis of the above scheme, referring to fig. 1, the present disclosure further provides a wind-driven generator 1, where the wind-driven generator 1 includes an end cover 11 disposed at the outer side of a bearing, a grease discharging port 12 is formed at the lower end of the end cover 11, the wind-driven generator 1 includes the grease discharging device 2, and the grease discharging device 2 is mounted on the grease discharging port 12. The wind driven generator 1 has all the beneficial effects of the grease discharging device 2, and the disclosure is not repeated here.

The specific implementation principle of the embodiment of the disclosure is as follows: when more waste oil is accumulated in the collecting space formed by the oil collecting groove 21 and the oil guiding pipe 22 and needs to be cleaned, the baffle cover 23 is detached firstly, and the oil collecting groove 21 is connected to the side wall of the oil guiding pipe 22, so that an L-shaped collecting space is formed, the moving rod 241 is firstly in a first working state, namely the clamping block of the moving rod 241 is in staggered clamping connection with the through hole 2423 of the scraping plate 242, and the moving rod 241 drives the scraping plate 242 to move in the oil collecting groove 21 and the oil guiding pipe 22; when the scraping plate 242 moves to collide with the inner wall of the grease collecting groove 21, the scraping plate 242 cannot move continuously along with the moving rod 241, at this time, the moving rod 241 is in the second working state, the moving rod 241 is rotated to align the clamping block 244 with the through hole 2423, then the moving rod 241 is pulled, the moving rod 241 is separated from the scraping plate 242, the moving rod 241 is pulled continuously, and the moving rod 241 drives the piston plate 243 to move continuously along the grease guiding pipe 22 and discharges waste grease in the grease guiding pipe 22. Therefore, the step of cleaning the bearing waste oil is simplified, and the convenience of cleaning the bearing waste oil is improved.

The preferred embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings, but the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solutions of the present disclosure within the scope of the technical concept of the present disclosure, and all the simple modifications belong to the protection scope of the present disclosure.

In addition, the specific features described in the above embodiments may be combined in any suitable manner without contradiction. The various possible combinations are not described further in this disclosure in order to avoid unnecessary repetition.

Moreover, any combination between the various embodiments of the present disclosure is possible as long as it does not depart from the spirit of the present disclosure, which should also be construed as the disclosure of the present disclosure.

Claims (10)

1. The utility model provides a grease discharging device for aerogenerator, aerogenerator is including setting up the end cover in the outside of bearing, grease discharging mouth has been seted up to the lower extreme of end cover, its characterized in that, grease discharging device includes:

the oil collecting groove is provided with a feed inlet and is used for being connected with the end cover so that the feed inlet is in butt joint with the oil discharging opening;

the oil guide pipe is connected with the oil collecting groove and communicated with the inside of the oil collecting groove so as to jointly form a collecting space, and a discharge hole is formed at the end part of the oil guide pipe;

the blocking cover is detachably connected to the end part of the oil guide pipe and used for blocking the discharge port; and

the oil scraping assembly comprises a moving rod and a scraping plate, one end of the moving rod penetrates through the blocking cover and stretches into the collecting space, and the moving rod is used for driving the scraping plate to move in the collecting space.

2. The grease discharging device according to claim 1, wherein the grease scraping assembly further comprises:

the piston plate is fixedly connected to the movable rod, and the shape of the piston plate is matched with the longitudinal section of the grease guide pipe, so that the edge part of the piston plate is attached to the inner wall of the grease guide pipe;

the oil collecting groove is connected with the pipe wall of the oil guide pipe and forms an L-shaped collecting space together with the oil guide pipe;

the movable lever has a first operating state and a second operating state,

in the first working state, the moving rod is connected with the scraping plate so as to drive the scraping plate to move in the collecting space;

in the second operating state, the travel bar is disconnected from the flight.

3. The grease discharging device according to claim 2, wherein the scraper includes a scraping portion, and a shape of the scraping portion is adapted to a longitudinal section of the grease guide pipe so that an edge portion of the scraping portion is fitted to an inner wall of the grease guide pipe.

4. A grease discharging device according to claim 3, wherein the scraper comprises a connecting portion, the scraping portion is connected with the connecting portion, and the shape of the connecting portion is adapted to the longitudinal section of the grease collecting groove, a guide structure is provided between the connecting portion and the groove wall of the grease collecting groove, the guide structure comprises a guide groove and a guide rib, the guide groove and the guide rib both extend along the axial direction of the moving rod, one of the guide groove and the guide rib is provided at the connecting portion, the other of the guide groove and the guide rib is provided at the groove wall of the grease collecting groove, and the guide groove is mutually matched with the guide rib to guide the movement of the scraper.

5. The grease discharging device according to claim 4, wherein the guide rib is inserted into the guide groove and is in limit fit with a groove wall of the guide groove to limit rotation of the scraper, an external thread is provided at an end portion of the moving rod, a screw hole is provided at the scraping portion, and an end portion of the moving rod is inserted into the screw hole and is screw-coupled with the screw hole.

6. The oil and fat discharging device according to claim 3, wherein the end of the moving rod is provided with a catching block, the scraping portion is provided with a through hole, a distance between the catching block and the piston plate is greater than or equal to a thickness of the scraping portion,

in the first working state, the clamping block penetrates through the through hole and is clamped with the scraping part;

in the second working state, the clamping block is separated from the through hole.

7. The grease discharging device according to claim 6, wherein the number of the catching pieces is two and is configured as a protrusion, two of the protrusions are connected to the moving rod and extend in a radial direction of the moving rod, and the through hole is shaped to pass through the protrusion.

8. The grease discharging device according to claim 1, wherein the grease discharging device comprises a sealing member, a through hole is provided in the blocking cover, and the sealing member is provided between the moving rod and the through hole.

9. The grease discharging device according to claim 1, wherein the blocking cover is fastened to an end portion of the grease guide pipe and is screw-coupled with the grease guide pipe.

10. A wind-driven generator, the wind-driven generator includes the end cover that sets up in the outside of bearing, the grease discharging mouth has been seted up to the lower extreme of end cover, characterized in that, the wind-driven generator includes the grease discharging device according to any one of claims 1-9, grease discharging device installs in the grease discharging mouth.