阅读说明：本技术 一种新型尘密型油封 (Novel dust-tight oil seal ) 是由 张勇 于 2021-10-16 设计创作，主要内容包括：本发明涉及防爆电机技术领域,具体涉及一种新型尘密型油封,由铁氟龙密封唇和油封架组成,油封架呈圆环形,油封架的一个端面上设有多个拆卸孔,油封架内环孔面上设有环形槽,环形槽内设有铁氟龙密封唇。本发明新型尘密型油封,结构简单、装卸方便,物料继承度高,通用型强,密封防护等级高。(The invention relates to the technical field of explosion-proof motors, in particular to a novel dust-tight oil seal which comprises a Teflon seal lip and an oil seal frame, wherein the oil seal frame is annular, one end surface of the oil seal frame is provided with a plurality of dismounting holes, an annular groove is arranged on the surface of an inner annular hole of the oil seal frame, and the Teflon seal lip is arranged in the annular groove. The novel dust-tight oil seal is simple in structure, convenient to assemble and disassemble, high in material succession degree, strong in universality and high in sealing protection grade.)

1. A novel dust-tight oil seal is characterized in that: the oil seal frame is annular, a plurality of dismounting holes are formed in one end face of the oil seal frame, an annular groove is formed in the inner annular hole face of the oil seal frame, and the Teflon seal lip is arranged in the annular groove.

2. The novel dust-tight oil seal according to claim 1, characterized in that: the number of the dismounting holes is four, the dismounting holes are symmetrically distributed on the same end face of the oil seal frame and are close to the outer ring of the end face.

3. The novel dust-tight oil seal according to claim 1, characterized in that: the Teflon sealing lip is integrally annular, the radial cross section of the Teflon sealing lip is in a letter 'J' shape, and a foot in the letter 'J' shape faces the end face of the oil seal frame provided with the dismounting hole.

Technical Field

The invention relates to the technical field of dustproof and waterproof combined sealed mechanical rotating equipment, wherein the working medium is oil, water, air and dust and meets the dust density requirement; in particular to a novel dust-tight oil seal.

Background

In recent years, the explosion-proof motor industry develops rapidly, the output continuously increases, and the quality steadily promotes, but the oil blanket that this type of motor adopted is relatively poor because of motor operational environment, often needs to change the oil blanket. If motor manufacture factory adopts conventional sealed mode, sealed effect is not good, and conventional sealed mode has:

1. the conventional V-shaped sealing ring structure is adopted, so that the dust and water resistance cannot reach IP 66;

2. the conventional framework oil seal structure is large in mechanical loss and is not suitable for high-efficiency and super-efficient motors;

3. conventionally, a shaft surface oil seal structure is adopted, and a corresponding bearing outer cover (end cover) and rotating shaft matching structure needs to be developed and designed;

if a special design dynamic seal structure is adopted, materials such as a bearing outer cover (end cover), a rotating shaft and the like corresponding to the design need to be developed and designed, the workload is increased for design and manufacture, the production cost is also increased, and the production progress is influenced.

Disclosure of Invention

To the not enough that prior art exists, overcome the problem of description in the background art that current sealing member exists, provide a novel dirt is close type oil blanket, solve because of the improvement of sealing member efficiency, protection level and the unmatched problem of conventional material.

In order to solve the technical problems, the technical scheme of the invention is as follows: the utility model provides a novel dust seal comprises teflon seal lip and oil blanket frame, and the oil blanket frame is the ring shape, is equipped with a plurality of dismantlement holes on the terminal surface of oil blanket frame, is equipped with the ring channel on the ring channel face in the oil blanket frame, is equipped with the teflon seal lip in the ring channel.

In the novel dust-tight oil seal, the number of the dismounting holes is four, and the dismounting holes are symmetrically distributed on the same end face of the oil seal frame and are close to the outer ring of the end face.

In the novel dust-tight oil seal, the Teflon seal lip is annular as a whole, the radial cross section of the Teflon seal lip is in a letter J shape, and a foot in the letter J shape faces to the end face of the oil seal frame provided with the dismounting hole.

Compared with the prior art, the invention has the beneficial effects that: the novel dust-tight oil seal is simple in structure, convenient to assemble and disassemble, high in material succession degree, strong in universality and high in sealing protection grade.

Drawings

The invention will be further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a schematic view of the novel dust-tight oil seal structure of the present invention;

FIG. 2 is a schematic left side view of the structure of FIG. 1;

FIG. 3 is a schematic view of a novel dust-tight oil seal applied to an assembly;

the corresponding names of the reference numbers in the drawings are as follows:

1-Teflon seal lip, 2-oil seal frame, 3-disassembly hole, 4-shaft, 5-dust seal oil seal and 6-end cover.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the above objects, the following detailed description of the embodiments, structures, features and effects of the present invention will be made with reference to the accompanying drawings. It should be understood that the description of the specific embodiments is intended to be illustrative of the invention and is not intended to limit the invention.

The novel dust-tight oil seal of the embodiment of the invention shown in fig. 1 to fig. 3 comprises a teflon seal lip 1 and an oil seal frame 2, wherein the oil seal frame 2 is annular, a plurality of dismounting holes 3 are arranged on one end surface of the oil seal frame 2, an annular groove is arranged on the annular hole surface in the oil seal frame 2, and the teflon seal lip 1 is arranged in the annular groove.

As shown in fig. 2, in the present embodiment, the number of the dismounting holes 3 is four, and the dismounting holes are symmetrically distributed on the same end face of the oil seal frame 2 and close to the outer ring of the end face.

As shown in fig. 2, in the present embodiment, the teflon seal lip 1 is annular as a whole, the radial cross section of the teflon seal lip 1 is in the shape of letter "J", and the leg of the letter "J" faces the end face of the oil seal holder 2 provided with the dismounting hole 3.

The embodiment shown in fig. 1 is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, so that any equivalent or similar changes in the principle, shape and structure of the present invention shall be covered by the present invention.