CN212251065U

CN212251065U - Speed reducer oil discharge nozzle, wind driven generator speed reducer and wind driven generator

Info

Publication number: CN212251065U
Application number: CN202022233769.1U
Authority: CN
Inventors: 李佳; 何泽京; 孔凡胜
Original assignee: Suote Transmission Equipment Co Ltd
Current assignee: Suote Transmission Equipment Co Ltd
Priority date: 2020-10-09
Filing date: 2020-10-09
Publication date: 2020-12-29
Anticipated expiration: 2030-10-09

Abstract

The utility model belongs to the aerogenerator field relates to a speed reducer oil extraction mouth, aerogenerator speed reducer and aerogenerator. The oil discharge nozzle of the speed reducer is used for being installed on the speed reducer and comprises a sealing seat, a sealing body and a sealing and pressing driving assembly, wherein a first channel is arranged on the sealing seat and communicated with the inner side of the speed reducer, the sealing and pressing driving assembly is used for driving the sealing body to abut against the sealing seat, and the sealing body is used for separating the first channel from the outer side of the speed reducer. The utility model provides a be difficult to the old butter technical problem of natural discharge under the condition of not dismantling the speed reducer, reached the technological effect of the old butter of natural discharge under the condition of not dismantling the speed reducer.

Description

Speed reducer oil discharge nozzle, wind driven generator speed reducer and wind driven generator

Technical Field

The utility model belongs to the aerogenerator field particularly, relates to a speed reducer oil extraction mouth, aerogenerator speed reducer and aerogenerator.

Background

The speed reducer is used as a core transmission component of the new energy wind driven generator, mainly transmits the driving force of the motor, and deflects the course angle of the wind driven generator or changes the angle of the blade by reducing speed and increasing torque. In order to ensure the normal work of the internal rotating parts of the speed reducer, lubricating grease needs to be injected into the speed reducer, and a sealing element for sealing the lubricating grease is installed in front of the speed reducer shell fixing element and the output gear. However, in the working and rotating process of the speed reducer, friction heat is generated and relative moving parts are abraded, so that abraded objects enter the lubricating grease, and the lubricating grease is polluted. The friction heat generated inside the speed reducer causes pressure difference between the gas inside and outside the speed reducer, and the high pressure inside the speed reducer causes lubricating grease to leak from the sealing element only and damage the sealing element.

In addition, contaminated grease makes the relative motion part surface unable lubrication, or lubricated not good and cause the part wearing and tearing aggravation, causes the speed reducer part aggravation to become invalid, solves through changing the grease usually. Because the speed reducer assembly of the wind driven generator is very inconvenient to replace, the mode of directly replacing lubricating grease without disassembling the speed reducer is usually adopted.

CN204420221U (published 2015, 6.24) discloses a tensioning device and a grease nipple thereof, which directly integrates a grease discharge port at a grease filling port, mainly aiming at engineering machinery traveling on a crawler, so that grease can not leak from a sealing ring to protect the sealing ring, but the grease filling port and the grease discharge port are integrated at one position, when new grease is replaced, because the grease closer to the grease nipple is the newly filled grease, once the oil pressure in a speed reducer rises, the newly filled new grease is discharged, the old grease mixed with abraded objects can not be discharged, and the replacement of the old grease can not be realized.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a speed reducer oil extraction mouth can solve and be difficult to the technical problem of the old butter of natural discharge under the condition of not dismantling the speed reducer among the background art.

The utility model provides an oil drain nozzle of speed reducer for install on the speed reducer, compress tightly drive assembly including seal receptacle, seal and sealing, be equipped with first passageway on the seal receptacle, first passageway with the inboard intercommunication of speed reducer, the sealing compresses tightly drive assembly and is used for the drive the seal supports on the seal receptacle, the seal will first passageway with the outside of speed reducer cuts off.

Through setting up sealed drive assembly that compresses tightly to drive the seal and support on the seal receptacle, can prevent that the butter in the speed reducer from spilling from the drain nozzle, when the oil pressure is great in the speed reducer, can overcome sealed drive assembly's that compresses tightly drive assembly's drive power with inside oil pressure, with the seal from the sealing member top-down, discharge the inside old butter of speed reducer to the effect of the old butter of natural discharge under the condition of not dismantling the speed reducer is realized.

The utility model of this aspect has the beneficial effects that:

in an alternative embodiment, the sealing and pressing driving assembly comprises a pressing piece and an elastic piece, one end of the elastic piece is abutted with the pressing piece, and the other end of the elastic piece is abutted with the sealing body.

In an alternative embodiment, the pressure piece is adjustably connected to the sealing seat.

In an alternative embodiment, a first external thread portion is provided on the pressing member, a first internal thread portion is provided on the seal holder, and the first external thread portion and the first internal thread portion are in threaded connection.

In an optional embodiment, a second channel is provided on the pressing member, the second channel is used for communicating a first space and the outer side of the speed reducer, and the first space is a space between the pressing member and the first channel.

In an alternative embodiment, the outer end face of the pressing piece is provided with an adjusting inner hole.

In an alternative embodiment, the resilient member is a cylindrical helical compression spring.

In an alternative embodiment, the sealing seat has an inner tapered bore surface, the sealing body is spherical, the sealing body abuts against the inner tapered bore surface, and the inner tapered bore surface is connected to the inner end of the first passage.

An object of the utility model is to provide a aerogenerator speed reducer solves and is difficult to the technical problem of the old butter of natural discharge under the condition of not dismantling the speed reducer among the background art.

The utility model provides a wind driven generator speed reducer, including oil filler neck and any one of the aforementioned embodiment speed reducer oil drain nozzle, the oil filler neck is located speed reducer oil drain nozzle's offside.

The utility model of this aspect has the beneficial effects that:

because the wind driven generator speed reducer that this aspect provided has included the speed reducer oil extraction mouth of above-mentioned arbitrary, consequently has the technical effect of the speed reducer oil extraction mouth of above-mentioned arbitrary, does not describe herein again.

An object of the third aspect of the utility model is to provide a wind driven generator solves and is difficult to in the background art the technical problem of the old butter of natural discharge under the condition of not dismantling the speed reducer.

The utility model provides a wind driven generator, including aforementioned embodiment the wind driven generator speed reducer.

The utility model of this aspect has the beneficial effects that:

because the wind driven generator provided by the aspect comprises the wind driven generator speed reducer, the technical effect of the wind driven generator speed reducer is achieved, and the description is omitted.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of an oil discharge nozzle according to a first embodiment of the present invention;

fig. 2 is a schematic view of the oil drain nozzle according to the first embodiment when the seal body is pushed open by grease in the speed reducer.

Icon: 10-a sealing seat; 11-a first channel; 12-a second external threaded portion; 13-a first internal threaded portion; 15-top trench; 17-inner taper hole surface; 19-a first space; 20-sealing body; 30-a compression member; 31-a second channel; 33-adjusting the inner hole; 35-a first external threaded portion; 40-an elastic member.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product is used, and are only for convenience of description of the present invention and simplification of description, but do not indicate or imply that the device or element to which the description refers must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. The terms "first type", "second type", "third type", etc. are used for distinction only, and are uniformly described with respect to the same type of component or feature, meaning that the number of the component or feature may be plural, but it is not denied that the number of the component or feature may be one.

Furthermore, the terms "horizontal", "vertical", "suspended", and the like do not imply that the components are required to be absolutely horizontal or suspended, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

The first embodiment is as follows:

as shown in fig. 1-2, the oil discharge nozzle of the speed reducer provided in this embodiment is used for being installed on the speed reducer, and includes a sealing seat 10, a sealing body 20, and a sealing and pressing driving assembly, where the sealing seat 10 is provided with a first channel 11, the first channel 11 is communicated with an inner side of the speed reducer, the sealing and pressing driving assembly is used for driving the sealing body 20 to abut against the sealing seat 10, and the sealing body 20 separates the first channel 11 from an outer side of the speed reducer.

Through setting up sealed drive assembly that compresses tightly to drive seal 20 and support on seal receptacle 10, can prevent that the butter in the speed reducer from spilling from the oil drain cock, when the oil pressure is great in the speed reducer, can overcome sealed drive assembly's that compresses tightly drive assembly's drive power by inside oil pressure, push away seal 20 from the sealing member, discharge the inside old butter of speed reducer to the effect of the natural old butter of discharging under the condition of not dismantling the speed reducer is realized.

In an alternative embodiment, the sealing and compressing driving assembly includes a compressing member 30 and an elastic member 40, one end of the elastic member 40 abuts against the compressing member 30, and the other end of the elastic member 40 abuts against the sealing body 20.

Through the setting including the sealed drive assembly that compresses tightly of compressing tightly 30 and elastic component 40 for sealing 20 has the space of the sealed position of keeping away from seal receptacle 10, and when the oil pressure in the speed reducer increased, can outwards back up sealing 20, in order to relieve the sealed between sealing 20 and the seal receptacle 10, and old butter in the speed reducer can outwards flow out.

In an alternative embodiment, the pressing member 30 is adjustably attached to the seal holder 10.

Through will compress tightly piece 30 and adjustably connect on seal receptacle 10, can change the distance between piece 30 and the seal 20 that compresses tightly, and then change the elasticity compression degree of elastic component 40 to make the oil extraction pressure of oil drain nozzle change, with the condition such as adaptation different temperature, operating mode.

In an alternative embodiment, the pressing member 30 is provided with a first external thread portion 35, the seal holder 10 is provided with a first internal thread portion 13, and the first external thread portion 35 is screwed with the first internal thread portion 13.

By providing the first external thread portion 35 and the first internal thread portion 13, it is possible to convert the rotational driving of the pressing member 30 into the relative axial movement of the pressing member 30 and the seal housing 10, and after the movement, it is possible to realize self-locking by utilizing the self-locking capability of the thread, so as to prevent the looseness of the pressing member 30, which results in the seal looseness between the seal body 20 and the seal housing 10.

In an alternative embodiment, the pressing member 30 is provided with a second passage 31, the second passage 31 is used for communicating the first space 19 and the outer side of the speed reducer, and the first space 19 is a space between the pressing member 30 and the first passage 11. Specifically, in the present embodiment, the second passage 31 may be provided along the axial direction of the drain nozzle, and may be a through hole having a circular cross section, which penetrates the inside and the outside of the pressing member 30.

Set up second passageway 31 on compressing tightly piece 30, processing is simple, is favorable to forming the hole of major diameter moreover to improve the efficiency that the butter flows, set up the second passageway 31 of major diameter moreover, can not take place to block up yet, can make the speed reducer can arrange oil smoothly.

In an alternative embodiment, the outer end face of the compression member 30 is provided with an adjustment bore 33. Specifically, the adjusting inner hole 33 in this embodiment may be a hole having a regular hexagonal or square cross section, and for the regular hexagonal hole, a hexagon socket wrench may be inserted into the adjusting inner hole 33 to rotate, and for the square cross section, a rod having a square cross section and matched with the adjusting inner hole 33 may be inserted into the adjusting inner hole 33 to rotate, so as to adjust the relative axial position of the pressing member 30 and the seal seat 10.

In addition, the size of the cross section of the inner hole 33 may be smaller than the cross section of the second channel 31, or may be larger than the cross section of the second channel 31, as long as the size is not so small as to affect the smooth flow of the grease, or so large as to affect the structural strength of the pressing member 30.

Through setting up the regulation hole 33, can drive compressing tightly piece 30 through commonly used instrument and rotate, in addition, because set the position of adjusting into the form of hole, can not make compressing tightly piece 30 outstanding outside in seal receptacle 10 because set up the regulation portion, reduced compressing tightly piece 30 because with other parts take place to interfere or collide and take place the possibility of damaging.

In an alternative embodiment, the resilient member 40 is a cylindrical helical compression spring.

The cylindrical helical compression spring is adopted as the elastic part 40, acting force can be applied in a mode of pushing the two sides, and great elasticity can be generated in a small space, and moreover, the cylindrical helical compression spring can allow butter heated in the speed reducer to pass through a gap between spring wires of the cylindrical helical compression spring and then enter the second channel 31 and flow to the outer side of the oil drain nozzle.

In an alternative embodiment, the sealing seat 10 has an inner tapered bore surface 17, the sealing body 20 is spherical, the sealing body 20 abuts against the inner tapered bore surface 17, and the inner tapered bore surface 17 is connected to the inner end of the first passage 11.

With the inner tapered bore surface 17 cooperating with the spherical sealing body 20, the spherical sealing body 20 will spontaneously move to the center of the inner tapered bore surface 17 under the drive of the sealing compression drive assembly due to the self-centering nature of the ball and tapered bore cooperation and abut the inner tapered bore surface 17 over an annular area to form a seal to isolate the first passageway 11 from the first space 19.

In addition, a top groove 15 is further provided on the outward-facing side end surface of the seal seat 10, and the top groove 15 may be a straight-line-shaped groove disposed in the radial direction. The outer circumferential surface of the seal holder 10 is provided with a second external thread portion 12. A screwdriver or a plate-shaped object can be inserted into the groove to drive the sealing seat 10 to rotate, so that the sealing seat 10 can be mounted on the speed reducer.

Example two:

the utility model provides a aerogenerator speed reducer, including the speed reducer oil drain nozzle of arbitrary one in oil filler neck and the aforementioned embodiment, the oil filler neck is located the offside of speed reducer oil drain nozzle.

Because the wind driven generator speed reducer that this aspect provided has included the speed reducer oil extraction mouth of above-mentioned arbitrary, consequently has the technical effect of the speed reducer oil extraction mouth of above-mentioned arbitrary, does not describe herein again. In addition, the oil filling nozzle is arranged on the opposite side of the oil discharging nozzle, when the oil is filled into the wind driven generator through the oil filling nozzle, the old grease discharged from the oil discharging nozzle is the earliest added part in the added grease, the waste of the grease is avoided, and the most effective use of the grease is realized.

The operation principle of the embodiment is as follows:

when the operating temperature of the wind power generation speed reducer rises and the pressure of the grease inside increases, the lubricating oil flows through the first passage 11 of the seal housing 10 and presses the seal body 20. The seal body 20 bears lubricating grease pressure and spring pressure, when the grease pressure is greater than the pressure of the elastic part 40, the seal of the seal body 20 and the seal seat 10 is opened, the lubricating grease flows out from the space between the seal body 20 and the seal seat 10, the lubricating grease overflows to the outer side of the wind power generation speed reducer through the first space 19, the cylindrical spiral compression spring, the second channel 31 and the adjusting inner hole 33, the internal pressure of the wind power generation speed reducer is reduced accordingly, the lubricating oil is prevented from leaking from the seal part, and therefore the seal part of the wind power generation speed reducer is protected.

After the wind power generation speed reducer operates for a period of time, the polluted lubricating grease needs to be replaced. When fresh grease is injected from the oil filler nozzle installed opposite to the oil drain nozzle, the pressure inside the speed reducer is increased, and the old grease acts on the seal body 20 from the first passage 11 of the seal housing 10. The sealing body 20 bears the pressure of the lubricating grease and the pressure of the elastic element 40, when the pressure of the grease is greater than the pressure of the elastic element 40, the sealing body 20 is contacted with the sealing seat 10 in a sealing mode, and the grease overflows to the outer side of the wind power generation speed reducer through the first space 19, the cylindrical spiral compression spring, the second channel 31 and the adjusting inner hole 33. The purpose of directly changing lubricating grease on the fan host machine is achieved quickly and conveniently without disassembling the speed reducer, the lubricating state of the speed reducer after being used for a period of time is effectively improved, and the service life of the speed reducer is prolonged.

Example three:

the wind driven generator provided by the embodiment comprises the wind driven generator speed reducer of the embodiment.

Because the wind turbine provided by this embodiment includes any one of the above wind turbine speed reducers, the wind turbine has the technical effects of any one of the above wind turbine speed reducers, and details are not described here.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; for example:

in the first embodiment, the second passage 31 is provided in the pressing member 30 so that the grease flowing from the side surface of the sealing body 20 is discharged through the cylindrical coil compression spring and the second passage 31 when the sealing body 20 is not sealed. In practice, other ways of discharging the grease can be used, such as providing holes in the side wall of the seat 10, which are in communication with the first space 19, but this is less convenient than providing the second channel 31 in the pressure member 30 according to the first embodiment.

In the first embodiment, the adjusting inner hole 33 with a square cross section or a regular hexagon cross section is adopted, and in fact, the adjusting inner hole 33 with a cross-shaped or a straight-line cross section can be arranged, and the position of the pressing member 30 relative to the sealing seat 10 can be adjusted by matching with a cross-shaped or a straight-line screwdriver.

In the first embodiment, the pressing member 30 is provided with an adjusting inner hole 33 for rotating the pressing member 30, and in fact, an outwardly protruding protrusion may be provided for rotating the pressing member 30, such as a regular hexagonal or regular square prism structure, which is clamped by a wrench or pliers, or the pressing member 30 may be rotated for adjusting.

Such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. The utility model provides a speed reducer oil drain mouth for install on the speed reducer, its characterized in that, including seal receptacle (10), seal (20) and sealed drive assembly that compresses tightly, be equipped with first passageway (11) on seal receptacle (10), first passageway (11) with the inboard intercommunication of speed reducer, sealed drive assembly that compresses tightly is used for the drive seal (20) support on seal receptacle (10), seal (20) will first passageway (11) with the outside of speed reducer cuts off.

2. The reducer drain nozzle according to claim 1, wherein the seal pressing drive assembly comprises a pressing member (30) and an elastic member (40), one end of the elastic member (40) abuts against the pressing member (30), and the other end of the elastic member (40) abuts against the sealing body (20).

3. Reducer drain nozzle according to claim 2, characterized in that the pressing piece (30) is adjustably connected to the sealing seat (10).

4. The reducer drain nozzle according to claim 3, wherein the pressing member (30) is provided with a first external thread portion (35), the seal holder (10) is provided with a first internal thread portion (13), and the first external thread portion (35) and the first internal thread portion (13) are in threaded connection.

5. The reducer drain nozzle according to claim 2, wherein the pressing member (30) is provided with a second passage (31), the second passage (31) is used for communicating a first space (19) and the outer side of the reducer, and the first space (19) is a space between the pressing member (30) and the first passage (11).

6. The reducer drain nozzle according to claim 5, characterized in that the outer end face of the pressing piece (30) is provided with an adjusting inner hole (33).

7. The reducer drain nozzle according to claim 2, wherein the elastic member (40) is a cylindrical helical compression spring.

8. The oil drain nozzle of the speed reducer according to claim 2, wherein the sealing seat (10) has an inner tapered bore surface (17), the sealing body (20) is spherical, the sealing body (20) abuts against the inner tapered bore surface (17), and the inner tapered bore surface (17) is connected with the inner end of the first channel (11).

9. A wind turbine reducer comprising an oil nipple and a reducer drain nipple according to any one of claims 1 to 8, the oil nipple being located on an opposite side of the reducer drain nipple.

10. A wind power generator comprising the wind power generator speed reducer of claim 9.