阅读说明：本技术 一种风机自润滑轴承座及自润滑方法 (Self-lubricating bearing seat and self-lubricating method for fan ) 是由 周良良 徐鹏飞 钱益来 于 2019-11-13 设计创作，主要内容包括：本发明公开了一种风机自润滑轴承座,涉及轴承座技术领域,包括：液压装置、轴承座、轴承组件、第一油封、第二油封、润滑机构、风机。轴承组件由数个轴承单元从下而上的方式叠加而成。本发明通过分离式的轴承组件使得各个轴承单元的贴合面之间具有空隙,不仅能够对液压油进行存储,有利于在轴承单元得不到充足液压油进行润滑时能够调动该空隙中的液压油及时参加润滑,而且通过该空隙,在液压油进入到轴承组件过程中,能够在连接轴的旋转带动下对空隙里的液压油进行甩动,使得液压流得到强大的动能,快速、充分的填充到轴承单元的各个缝隙中,以及时参加润滑工作,避免轴承座损坏。(The invention discloses a self-lubricating bearing seat of a fan, which relates to the technical field of bearing seats and comprises the following components: hydraulic means, bearing frame, bearing assembly, first oil blanket, second oil blanket, lubricated mechanism, fan. The bearing assembly is formed by stacking a plurality of bearing units from bottom to top. According to the invention, the gap is formed between the binding surfaces of the bearing units through the separated bearing assembly, so that hydraulic oil can be stored, the hydraulic oil in the gap can be transferred to join in lubrication in time when the bearing units cannot obtain sufficient hydraulic oil for lubrication, and the hydraulic oil in the gap can be swung under the driving of the rotation of the connecting shaft in the process that the hydraulic oil enters the bearing assembly through the gap, so that the hydraulic flow obtains strong kinetic energy, is rapidly and fully filled into each gap of the bearing units, and participates in lubrication work in time, and the bearing seat is prevented from being damaged.)

1. A self-lubricating bearing housing for a wind turbine, comprising:

a hydraulic device, said hydraulic device having:

a hydraulic chamber;

a drive shaft disposed in the hydraulic chamber;

the bearing frame, the bearing frame sets up hydraulic means's bottom, have in the bearing frame:

a bearing cavity;

the connecting shaft is arranged in the bearing cavity, and the transmission shaft is connected with the connecting shaft;

a bearing assembly disposed in the bearing cavity, the bearing assembly having:

the bearing assembly is formed by superposing a plurality of bearing units;

the first oil seal is arranged at the bottom of the bearing cavity;

the second oil seal is arranged at the bottom of the bearing cavity;

a lubrication mechanism having:

the oil receiving pipe is communicated with the hydraulic cavity;

the oil guide pipe is used for transmitting the hydraulic oil in the oil receiving pipe to the lubricating cavity;

the fan, the fan setting is in the bearing frame bottom, have in the fan:

the impeller, the connecting axle runs through bearing unit, first oil blanket, the second oil blanket, and with the impeller links to each other, first oil blanket, the second oil blanket with the connecting axle constitutes lubricated chamber.

2. The self-lubricating bearing seat of the fan according to claim 1, wherein the hydraulic device further comprises an oil inlet and an oil return port, and the hydraulic device further comprises:

the transmission gear is arranged in the hydraulic cavity and is connected with the transmission shaft.

3. The self-lubricating bearing support for a wind turbine as set forth in claim 1, wherein said bearing support upper end has:

the end cover is arranged on the bearing seat;

the stabilizing bearing is arranged in the end cover, and the transmission shaft penetrates through the end cover and the stabilizing bearing to be connected with the connecting shaft.

4. The self-lubricating bearing support for a wind turbine as claimed in claim 1, wherein the bearing support further comprises:

and the oil discharge port is communicated with the bearing cavity and is positioned at the side upper end of the bearing cavity.

5. The self-lubricating bearing seat of the blower according to claim 1, wherein the oil receiving pipe is provided with a valve.

6. The self-lubricating bearing support for a wind turbine as claimed in claim 1, wherein the bearing unit comprises:

an outer ring having arcuate openings on a top and a bottom of the outer ring;

the top and the bottom of the inner ring are also provided with arc-shaped openings, and the openings of the outer ring and the inner ring form a raceway;

balls disposed on the raceways.

7. The self-lubricating bearing support for a wind turbine as claimed in claim 6, wherein a gap is provided between the outer ring and the inner ring.

8. The self-lubricating bearing seat for a blower of claim 6 wherein the outer ring and/or the inner ring has a lubrication groove thereon.

9. The fan self-lubricating bearing seat of claim 8, wherein the lubrication groove is disposed at an oblique angle to the central axis of the inner ring.

10. The self-lubricating fan bearing housing of claim 6, wherein said housing further comprises:

and the hole check rings are arranged at the upper end and the lower end of the bearing seat, and rolling channels matched with the balls are arranged on the hole check rings.

Technical Field

The invention relates to the technical field of bearing seats, in particular to a self-lubricating bearing seat of a fan and a self-lubricating method.

Background

The large-scale air handling unit all uses the fan at the during operation, and in current fan bearing frame, in order to prolong, the life of bearing, reduce the pollution to the bearing of revealing and the dust of lubricating oil, increase the oil blanket sealed bearing outside the bearing, the lip sword of sealing washer can have certain friction to the transmission shaft.

During the factory assembly process of the fan bearing seat, lubricating oil is usually coated on an oil seal lip in the bearing seat, and the fan bearing seat is not maintained any more in the use process. In order to prolong the service life of the bearing, lubricating oil is smeared on the bearing, the lubricating oil is melted by high temperature generated during the operation of the machine to cause leakage, and a sealing ring is generally arranged on the outer side of the bearing to reduce the leakage of the lubricating oil and the damage of the bearing caused by dust attached to the outer side of the bearing. Meanwhile, liquid lubricating oil is added into the sealed gear box at one time, and when the machine works, a part of the liquid lubricating oil splashes to participate in the lubrication of the lip edge of the oil seal, so that the abrasion of the shaft to the oil seal is reduced. Lubricating oil has partly evaporation after the temperature risees, perhaps does not operate for a long time machine, and oil blanket lip sword is dry and astringent, and lubricating oil can not in time participate in the lubrication, can play wearing and tearing with higher speed to oil blanket lip sword, and the oil blanket lip sword of wearing and tearing can have certain friction to transmission shaft in the bearing frame, arouses the wearing and tearing of coupling department easily for the damage of fan bearing frame shortens life. Therefore, the self-lubricating device is urgently needed in the field to improve the lubrication of the fan bearing seat so as to improve the sealing performance of the fan bearing seat.

Disclosure of Invention

One purpose of the invention is to solve the problem that lubricating oil cannot timely participate in lubricating and damaging the bearing seat when the fan works in the prior art.

The second purpose of the invention is to provide a self-lubricating method.

In order to achieve one of the purposes, the invention adopts the following technical scheme: a self-lubricating bearing housing for a wind turbine, comprising: a hydraulic device, said hydraulic device having: a hydraulic chamber; a drive shaft disposed in the hydraulic chamber; the bearing frame, the bearing frame sets up hydraulic means's bottom, have in the bearing frame: a bearing cavity; the connecting shaft is arranged in the bearing cavity, and the transmission shaft is connected with the connecting shaft; a bearing assembly disposed in the bearing cavity, the bearing assembly having: the bearing assembly is formed by superposing a plurality of bearing units from bottom to top; the first oil seal is arranged at the bottom of the bearing cavity; the second oil seal is arranged at the bottom of the bearing cavity, and the first oil seal is positioned at the upper end of the second oil seal; a lubrication mechanism having: the oil receiving pipe is communicated with the hydraulic cavity; the oil guide pipe is used for transmitting the hydraulic oil in the oil receiving pipe to the lubricating cavity; the fan, the fan setting is in the bearing frame bottom, have in the fan: the impeller, the connecting axle runs through bearing unit, first oil blanket, the second oil blanket, and with the impeller links to each other, first oil blanket, the second oil blanket with the connecting axle constitutes lubricated chamber.

In the technical scheme, the transmission shaft is driven to rotate by the pressure of hydraulic oil in the hydraulic device, the connecting shaft in the bearing seat is driven to rotate by the power of the transmission shaft, and the impeller on the fan is finally driven to rotate.

Further, in the embodiment of the present invention, the hydraulic device further includes an oil inlet and an oil return port, and the hydraulic device further includes: the transmission gear is arranged in the hydraulic cavity and is connected with the transmission shaft.

Further, in an embodiment of the present invention, the bearing housing has, at an upper end thereof: the end cover is arranged on the bearing seat; the stabilizing bearing is arranged in the end cover, and the transmission shaft penetrates through the end cover and the stabilizing bearing to be connected with the connecting shaft.

Further, in the embodiment of the present invention, the bearing seat further includes: and the oil discharge port is communicated with the bearing cavity and is positioned at the side upper end of the bearing cavity. In the process of lubricating the bearing assembly, redundant hydraulic oil flows out through the oil discharging port.

Furthermore, in the embodiment of the present invention, a valve is disposed on the oil receiving pipe. The oil quantity of the hydraulic oil in the lubricating mechanism is controlled through the valve, sufficient hydraulic oil is guaranteed to lubricate the first oil seal and the second oil seal, and meanwhile, the situation that the hydraulic oil continuously floods into the lubricating mechanism, and the hydraulic pressure in the hydraulic device is insufficient to drive the hydraulic device to run is avoided.

Further, in an embodiment of the present invention, the bearing unit includes: an outer ring having arcuate openings on a top and a bottom of the outer ring; the top and the bottom of the inner ring are also provided with arc-shaped openings, and the openings of the outer ring and the inner ring form a raceway; balls disposed on the raceways. When the connecting shaft drives the inner ring to rotate, the ball is controlled by the two bearing units, and when one bearing unit is favorable for lack of lubrication, the other bearing unit with hydraulic oil lubrication can smoothly drive the ball to rotate, so that the influence of abrasion caused by incapability of timely lubrication is reduced, and hydraulic oil in the bearing unit can be uniformly distributed to a gap between the outer ring and the inner ring of the other bearing unit through the rotation of the ball to a certain extent, so that the hydraulic oil can timely participate in lubrication, and the bearing seat is prevented from being damaged.

Further, in an embodiment of the present invention, a gap is provided between the outer ring and the inner ring. The respective operation of the inner ring and the outer ring is facilitated by this gap.

Further, in the embodiment of the invention, the outer ring and/or the inner ring is provided with a lubricating groove. The efficiency of passing hydraulic oil is increased by the lubrication grooves in the bearing assembly, and the bearing unit is lubricated.

Furthermore, in the embodiment of the present invention, the lubricating grooves are arranged at an inclined angle with respect to the central axis of the inner ring. The inclined lubrication groove facilitates the rapid introduction of hydraulic oil into the bearing unit to rapidly participate in the lubrication.

Still further, in an embodiment of the present invention, the bearing housing further has: and the hole check rings are arranged at the upper end and the lower end of the bearing seat, and rolling channels matched with the balls are arranged on the hole check rings.

Further, in an embodiment of the present invention, the lubricating mechanism further has: the lubricating channel is communicated with the oil guide pipe and is vertically arranged; the right end of the straight pipeline is communicated with the lubricating channel, the left end of the straight pipeline is communicated with the lubricating cavity, the straight pipeline is perpendicular to the lubricating channel, and the side wall of the straight pipeline is provided with: a chute; the oil locker is arranged in the straight pipeline, the left end of the oil locker is in sliding connection with the chute and seals the chute, the radial bulge of the right end of the oil locker is attached to the side wall of the straight pipeline to seal the straight pipeline, and the oil locker is provided with: the oil inlet channel penetrates through the left side and the right side of the oil locker, and the oil inlet channel is communicated with the lubricating channel and the lubricating cavity.

When the first oil seal and/or the second oil seal are damaged, wind pressure generated by rotation of the connecting shaft pushes hydraulic oil to flow reversely and pushes the oil locker to slide in the sliding groove, at the moment, the right end of the oil locker is separated from the straight pipeline to be attached to the lubricating channel, the oil inlet channel is blocked, and hydraulic oil is prevented from leaking.

Further, in an embodiment of the present invention, the lubricating mechanism further has: the indicating pipe is communicated with the straight pipeline and is positioned at the middle lower end of the oil locker. After the oil locker breaks away from the straight pipeline, the lubricating channel is communicated with the straight pipeline, hydraulic oil enters the indicating pipe from the straight pipeline, and the first oil seal and/or the second oil seal of a worker can be indicated to be out of order.

Further, in an embodiment of the present invention, the lubricating mechanism further has: and the control valve is arranged on the oil guide pipe and is used for controlling the flow of hydraulic oil in the oil guide pipe.

Further, in an embodiment of the present invention, the lubricating mechanism further has: the upper end of the oil guide cavity is communicated with the oil receiving pipe, and the lower end of the oil guide cavity is communicated with the oil guide pipe; the oil suction cavity is communicated with the indicating pipe and the oil guide pipe; the blocking block is arranged at the position where the oil suction cavity is communicated with the oil guide pipe; the piston is arranged in the oil suction cavity; the lower end of the push-pull rod is connected with the piston, and the push-pull rod extends out of the oil suction cavity.

And closing the control valve to cut off the oil supply work of the oil guide pipe, driving the push-pull rod to pull the piston to suck the hydraulic oil in the lubricating channel, the straight pipeline and the indicating pipe into the oil suction cavity, after the first oil seal and/or the second oil seal are/is replaced, pushing the piston to inject air into the indicating pipe to force the oil locking device to reset, and finally opening the plugging block to guide the hydraulic oil in the oil suction cavity into the oil guide pipe.

The invention has the beneficial effects that:

the invention enables gaps to be formed between the binding surfaces of the bearing units through the separated bearing assembly, not only can hydraulic oil be stored (it should be noted that, because the inner rings of the bearing units are sleeved on the connecting shaft, when the connecting shaft rotates, the inner rings of all the bearing units are driven to rotate at the same speed and in the same direction, friction cannot be generated between the bearing units, namely hydraulic oil in the gaps between the bearing units cannot be consumed), the invention is beneficial to transferring the hydraulic oil in the gaps to participate in lubrication in time when the bearing units cannot be lubricated by sufficient hydraulic oil, but also through the gaps, the hydraulic oil in the gaps can be swung under the driving of the rotation of the connecting shaft in the process that the hydraulic oil enters the bearing assembly, so that the hydraulic flow obtains strong kinetic energy and is rapidly and fully filled in the gaps of the bearing units, so as to join in the lubrication work in time and avoid the damage of the bearing seat.

In order to achieve the second purpose, the invention adopts the following technical scheme: a method of self-lubricating comprising the steps of:

driving, namely introducing hydraulic oil through the oil inlet, driving a hydraulic device to drive a transmission shaft to rotate by the pressure of the hydraulic oil, driving a connecting shaft in a bearing seat to rotate by the power of the transmission shaft, and finally driving an impeller on a fan to rotate;

in the process of working of the hydraulic device, hydraulic oil permeates into a bearing cavity through a gap between the transmission shaft and the bearing seat under the action of the pressure of the hydraulic oil;

lubricating a bearing, wherein hydraulic oil in a bearing cavity flows into a bearing seat assembly under the action of gravity to lubricate the bearing seat assembly, and gaps between binding surfaces of bearing units can store the hydraulic oil and swing the stored hydraulic oil to provide kinetic energy for the hydraulic oil and accelerate the flow of the hydraulic oil in the bearing assembly;

and oil guiding and lubricating, namely guiding hydraulic oil in the hydraulic cavity into an oil guiding pipe through an oil receiving pipe, and lubricating the first oil seal, the second oil seal and the connecting shaft by guiding the hydraulic oil into a lubricating cavity through the oil guiding pipe.

Further, in the embodiment of the present invention, in the bearing lubrication step, the balls in the bearing assembly are controlled by the two bearing units, and the hydraulic oil is uniformly distributed to the gap between the outer ring and the inner ring of the bearing units through the balls.

Further, in the embodiment of the present invention, in the bearing lubricating step, the bearing unit is lubricated by enlarging the passing efficiency of the hydraulic oil by the lubricating groove in the bearing assembly.

Further, in the embodiment of the present invention, after the oil guiding step, there is a step of:

sealing oil, when the first oil seal and/or the second oil seal are damaged, wind pressure generated by rotation of the connecting shaft pushes hydraulic oil to flow reversely and pushes an oil locker to slide in the sliding groove, and at the moment, the right end of the oil locker is separated from the straight pipeline and attached to the lubricating channel, so that the oil inlet channel is blocked;

and indicating that the oil locker is separated from the straight pipeline, the lubricating channel is communicated with the straight pipeline, and the hydraulic oil enters the indicating pipe from the straight pipeline.

Further, in the embodiment of the present invention, after the step of illustrating, there is further provided the step of:

the oil suction, the control valve is closed to cut off the oil supply work of the oil guide pipe, and the push-pull rod is driven to pull the piston to suck the hydraulic oil in the lubricating channel, the straight pipeline and the indicating pipe into the oil suction cavity;

and replacing the first oil seal and/or the second oil seal.

Drawings

FIG. 1 is a schematic front view of a self-lubricating bearing seat of a blower according to an embodiment of the invention.

Fig. 2 is a schematic structural diagram of a self-lubricating bearing of a fan according to an embodiment of the present invention.

FIG. 3 is a schematic plan view of a bearing assembly according to an embodiment of the invention.

Fig. 4 is a schematic plan view of a bearing unit according to an embodiment of the present invention.

Fig. 5 is a perspective view schematically illustrating a bearing unit according to an embodiment of the present invention.

Fig. 6 is a schematic top view of a bearing unit according to an embodiment of the present invention.

Fig. 7 is a schematic top view of another bearing unit according to an embodiment of the present invention.

Fig. 8 is a partially enlarged view a of fig. 2.

Fig. 9 is a schematic diagram of the motion of fig. 8.

Fig. 10 is a schematic structural diagram of a lubricating mechanism according to an embodiment of the present invention.

In the attached drawings

1. Hydraulic device 101, hydraulic cavity 102 and oil inlet

103. Oil return opening 104, transmission gear 105 and transmission shaft

2. Bearing seat 21, end cover 22 and stabilizing bearing

201. Bearing cavity 202, oil discharge port 203 and connecting shaft

204. First oil seal 205 and second oil seal

3. Fan 301 and impeller

4. Bearing unit 41, outer ring 42, inner ring

43. Balls 411, raceways 412, clearances

413. Lubrication groove 401, hole retainer ring

5. Lubricating mechanism 501, oil receiving pipe 502 and oil guide pipe

503. Lubrication channel 504, straight pipeline 505 and sliding groove

506. Indicating pipe 507, control valve 508 and oil guide cavity

509. Oil suction cavity 510, plugging block 511 and piston

512. Push-pull rod

6. Oil locker 601 and oil inlet channel

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clear and fully described, embodiments of the present invention are further described in detail below with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of some embodiments of the invention and are not limiting of the invention, and that all other embodiments obtained by those of ordinary skill in the art without the exercise of inventive faculty are within the scope of the invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "a," "an," "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

For the purposes of simplicity and explanation, the principles of the embodiments are described by referring mainly to examples. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the embodiments. But it is obvious. To one of ordinary skill in the art, the embodiments may be practiced without limitation to these specific details. In some instances, well-known self-lubricating methods and structures have not been described in detail to avoid unnecessarily obscuring the embodiments. In addition, all embodiments may be used in combination with each other.