阅读说明：本技术 一种自排润滑脂的密封圈及密封装置 (Self-lubricating grease discharging sealing ring and sealing device ) 是由 欧喜兵 于 2020-06-04 设计创作，主要内容包括：本发明公开了一种自排润滑脂的密封圈及密封装置,包括：主环,内表面具有密封唇、沿远离所述密封唇的方向延伸的副唇、形成于所述密封唇和所述副唇之间的存油槽；泵油筋,若干条,设置于所述密封唇上,位于所述密封唇上背向所述副唇的侧面。本发明的一种自排润滑脂的密封圈及密封装置,能够缓慢的排出废润滑脂,降低更换润滑脂的难度,避免轴承的工作环境恶化,确保设备正常工作。(The invention discloses a sealing ring and a sealing device for self-discharging lubricating grease, comprising: a primary ring having an inner surface with a seal lip, a secondary lip extending in a direction away from the seal lip, an oil reservoir formed between the seal lip and the secondary lip; and the oil pumping ribs are arranged on the sealing lip and positioned on the sealing lip back to the side surface of the auxiliary lip. The sealing ring and the sealing device capable of discharging the lubricating grease automatically can discharge the waste lubricating grease slowly, reduce the difficulty of replacing the lubricating grease, avoid the deterioration of the working environment of the bearing and ensure the normal work of equipment.)

1. A self-draining grease seal ring, comprising:

a primary ring (100) having an inner surface with a sealing lip (110), a secondary lip (120) extending in a direction away from the sealing lip (110), an oil sump (130) formed between the sealing lip (110) and the secondary lip (120);

the oil pumping ribs (140) are arranged on the sealing lip (110) and are positioned on the side surface, back to the auxiliary lip (120), of the sealing lip (110).

2. A self-lubricating sealing ring, according to claim 1, characterized in that the sealing lip (110) has a front lip surface (150) and a rear lip surface (160), the front lip surface (150) being provided with the pumping rib (140).

3. A self-lubricating sealing ring, according to claim 2, characterized in that the angle between the front lip surface (150) and the axis of the primary ring (100) is 20 to 30 degrees.

4. A self-lubricating sealing ring according to claim 2, wherein the trailing lip surface (160) is angled at 40 to 50 degrees to the axis of the primary ring (100).

5. A self-lubricating sealing ring, according to claim 2, wherein the pumping rib (140) extends to the line connecting the front lip surface (150) and the rear lip surface (160).

6. A self-lubricating sealing ring, according to claim 1, wherein the pump rib (140) is offset with respect to the axis of the main ring (100).

7. A self-lubricating sealing ring, according to claim 1, characterized in that the end face of the main ring (100) is provided with a side ring groove (170), the side ring groove (170) is sleeved with a spring (180), and the spring (180) is used for clamping the sealing lip (110).

8. The self-lubricating sealing ring according to claim 1, further comprising an outer diameter portion (190), wherein the outer diameter portion (190) is sleeved on the outer surface of the main ring (100).

9. A self-grease-draining seal comprising a self-grease-draining seal ring according to any one of claims 1 to 8.

10. The sealing device for self-discharging grease according to claim 9, further comprising an oil discharge pipe (200) and a collection box (210), wherein the collection box (210) is disposed at the bottom of the oil discharge pipe (200), and the top of the oil discharge pipe (200) is communicated with the oil storage tank (130).

Technical Field

The invention relates to a sealing technology, in particular to a sealing ring and a sealing device capable of automatically discharging lubricating grease.

Background

The bearing of the large-scale wind driven generator is a key component of the whole set of equipment, and the lubrication of the bearing is very critical to ensure that a rotating shaft of the equipment can normally run and reach corresponding service life.

Because the wind driven generator is large in size and is equipped on the mountain top or the sea side, regular maintenance is usually adopted to replace the lubricating grease.

However, under the condition of working aloft, it becomes very difficult to replace the grease, especially, to clean the waste grease, and the residual waste grease is liable to deposit and block, and moreover, there is no lubricating effect, which causes deterioration of the working environment of the bearing and is liable to malfunction

Disclosure of Invention

The invention aims to solve at least one technical problem in the prior art, and provides a sealing ring and a sealing device capable of discharging lubricating grease automatically, which can slowly discharge waste lubricating grease, reduce the difficulty of replacing the lubricating grease, avoid the deterioration of the working environment of a bearing and ensure the normal operation of equipment.

The invention is realized by the following technical scheme:

in a first aspect of the present invention, there is provided a seal ring for self-discharging grease, comprising: a primary ring having an inner surface with a seal lip, a secondary lip extending in a direction away from the seal lip, an oil reservoir formed between the seal lip and the secondary lip; and the oil pumping ribs are arranged on the sealing lip and positioned on the sealing lip back to the side surface of the auxiliary lip.

According to the sealing ring capable of discharging lubricating grease automatically, the sealing lip is provided with a front lip surface and a rear lip surface, and the front lip surface is provided with the oil pumping rib.

According to the sealing ring for self-discharging grease in the first aspect of the invention, the included angle between the front lip surface and the axis of the main ring is 20 to 30 degrees.

According to the sealing ring for self-discharging grease in the first aspect of the invention, the included angle between the rear lip surface and the axis of the main ring is 40 to 50 degrees.

According to the sealing ring capable of discharging lubricating grease, the pump oil rib extends to a connecting line of the front lip surface and the rear lip surface.

According to the self-lubricating grease seal ring of the first aspect of the present invention, the pump oil ring is disposed offset with respect to the axis of the main ring.

According to the sealing ring capable of discharging the lubricating grease automatically, the end face of the main ring is provided with the side ring groove, and the side ring groove is sleeved with the spring which is used for clamping the sealing lip.

According to the first aspect of the present invention, the sealing ring further comprises an outer diameter portion, and the outer diameter portion is sleeved on the outer surface of the main ring.

In a second aspect, the present invention provides a sealing device for self-discharging grease, comprising any one of the above-mentioned sealing rings for self-discharging grease.

According to the second aspect of the invention, the sealing device for self-discharging grease further comprises an oil discharge pipe and a collection box, wherein the collection box is arranged at the bottom of the oil discharge pipe, and the top of the oil discharge pipe is communicated with the oil storage tank.

Has the advantages that: compared with the prior art, the sealing ring and the sealing device for self-discharging lubricating grease have the advantages that the main ring is provided with the sealing lip, the auxiliary lip and the oil storage groove, the oil pumping ribs are arranged on the sealing lip, so that when a rotating shaft of equipment rotates, oil pumping channels are formed between the adjacent oil pumping ribs, old lubricating grease is slowly released to the oil storage groove, the old lubricating grease is gathered, new lubricating grease can be supplemented, the defects caused by the residual old lubricating grease are avoided, meanwhile, the service life of a bearing is prolonged, the maintenance period is prolonged, and the maintenance difficulty of high-altitude equipment such as a large-scale wind driven generator is reduced.

Drawings

The invention is further described below with reference to the accompanying drawings and examples;

FIG. 1 is a schematic view of the construction of the sealing device of the present invention;

FIG. 2 is a schematic structural view of the seal ring of FIG. 1;

fig. 3 is an enlarged schematic view of the sealing lip of the sealing ring of fig. 2.

Reference numerals: 100-main ring, 110-sealing lip, 120-auxiliary lip, 130-oil storage groove, 140-pump oil rib, 150-front lip face, 160-rear lip face, 170-side ring groove, 180-spring, 190-outer diameter part, 200-oil discharge pipe and 210-collection box.

Detailed Description

Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.